Communication and Conflict Essay Example | Topics and Well Written Essays - 750 words - 1

Communication and Conflict - Essay Example There was a time when I had placed my homework on my classroom desk, but when I turned around it was gone. My seatmate said the class bully pilfered it when I was not looking, but I was too scared to confront him. I suffered a â€Å"no homework† mark on that day, but I would rather have had that grade than confront the bully. I avoided conflict as much as possible, but most especially with him. There was not much criteria that went into that decision; it was purely fear and a desire for self preservation. I felt that confronting him would only make me a more appealing target for him, so I maintained a low profile, thinking that we won’t be classmates forever anyway. I was glad when the classes were reshuffled and we had different classmates the following year. â€Å"HE SAID, SHE SAID† A Case Study 1. Overview of the case The case deals with a family whose members are currently experiencing conflicts of relationships. The causes of conflict are typical for most fa milies: a teen-ager who tests his parent’s limits, a mother who tends to be lenient towards her son, and a father-figure who has difficulty asserting his authority partly because of his informal role in the family (i.e., as the mother’s fiance). 2. Presentation of the key facts Marie, an adult college student and mother of fifteen-year-old son Lenny, gives him a scolding when he comes home too late without calling. She attempts to impose a 10 p.m. curfew on her son for the next four weekends. Marie resents her fiance Mike’s intervention when he breaks off the scolding and puts off the discussion for the next day. She points out that he has no authority in the discipline of her son. The following day, Marie ignores Mike’s approach at reconciliation, but quickly forgives and forgets her son’s transgression of the previous night. Mike and Lenny leave, both of them forgetting to greet Marie on her birthday. 3. Source of conflict Marie: There are two ru nning conflicts involving Marie, one with Lenny and the other with Mike. The conflict with Lenny has to do with his seeming disregard for her as a person of authority. Lenny coming home late without calling, and getting away with irresponsible acts. At first, Marie was aggressive-assertive in nagging Lenny. Marie used threat of punishment in an attempt, or maybe a guise, to discipline, but even the relatively light penalty of coming home before 10 on Saturdays seemed a tentative punishment, which Marie did not appear to seriously have the resolve to carry out. The following day, she employed avoidance by denying there was a conflict. Marie rationalized her son’s actions by telling herself that he was a good boy and did not do anything really wrong. The second conflict involving Marie is her perception of Mike’s interference in and disapproval of the way she disciplines her son. When Lenny arrived home late, she initially addressed this conflict by competition with Mike . The following day, she used avoidance by being noncommittal when Mike approached to kiss her. Mike: Mike’s source of conflict is Marie’s failure to discipline her son. Uses avoidance, at least when the conflict is still heated and confrontation is high. While he is non confrontational, however, Mike seeks to engage the issues when he perceives that temperatures have gone down. Mike may try to assert himself, but in this situation, being only a boyfriend to Lenny’s mother. Strictly speaking, it is not his place to discipline his girlfriend’

Controversial Television Program Essay Example for Free

Controversial Television Program Essay My topic is Controversial Television Program; I believe that I can’t exclusively pertain to only one source. Why? Having a specific source restricts the information available for my topic that will hinder the comparisons of the advantages and disadvantages of certain controversial programs. A controversial television program doesn’t necessarily mean it has a â€Å"negative† impact to the audience, rather than a good conventional discussion for audience to tackle a particular issue that has a significant effect to the society or to an individual. It does not constraints ones idea, rather it asks us to become open minded and embrace various issues to talk about and open our minds and do something about it. This controversial television program varies from time to time. Decades ago, people are more conservative and restrict television programs that only cater to their taste, to their way of living. But now, people opt to have taste of these things that enhance their minds and argue things. I have chosen 3 various resources for my paper, and these three resources are great combinations to help me enable present a better research paper. These resources are in the same form of media as to my topic, and would surely cover all my questions and be able to expound a good argument to my audience.

Left Behind :: essays research papers

This book is about the Tribulation period that takes place after the Rapture of the church. It begins on an airplane; people suddenly disappear leaving nothing but their clothes, jewelry, etc. The airplane pilot, Rayford Steele, is the main character. Non-believers of Jesus Christ and his followers are terrified and frightened as they try to figure out what has happened to their loved ones. Rayford Steele is directed back to his airport. Flights across the world are grounded, due to the car accidents, sudden disappearances, and believe it or not, plane crashes. His wife and his son, in the earlier days had become very strong Christians. As he lands the 7-47, a thought crosses Rayford’s mind is my wife still here, are my kids okay, is my family still alive? Guilt came upon him, thus he was struggling with his marriage, and he thought about having an affair with his head stewardess, Hattie. Hattie befriends a young journalist on the plane and they try to make contacts with their families after the Rapture. They plan to keep in touch after the plane lands. After hours of confusion and turmoil passes, Rayford makes his way home. Only to find his wife and son missing, their clothes being the only piece of evidence left. When the dramatic feeling sets in, he contacts his daughter, Chloe, and right away she makes her way home. In desperate need of answers, Chloe and Rayford search for answers about these mysterious cases of disappearance. Suddenly, Rayford remember his wife talking about what the Christians called â€Å"The Rapture†, she was always bringing up how they would vanish from the face of the earth. Rayford took her for granted and forgot about it completely. Everything she said began to make more and more sense, so to find the rational explanations he needed to answer these prophecies, he picked up the Holy Bible. Rayford took the next step; he went to his wife's church to find Bruce, who was also too proud to accept a word the Christians had said before the Rapture. Bruce gives Rayford a video of explanation for the Rapture and Rayford studied it. In the tape, he learns that the Rapture is the event in where Jesus takes his followers, known as the Christians and brings them to heaven, where the Christians will receive eternal life. At the end of the video Rayford Steele then received the Lord God into his heart and became a Christian. Left Behind :: essays research papers This book is about the Tribulation period that takes place after the Rapture of the church. It begins on an airplane; people suddenly disappear leaving nothing but their clothes, jewelry, etc. The airplane pilot, Rayford Steele, is the main character. Non-believers of Jesus Christ and his followers are terrified and frightened as they try to figure out what has happened to their loved ones. Rayford Steele is directed back to his airport. Flights across the world are grounded, due to the car accidents, sudden disappearances, and believe it or not, plane crashes. His wife and his son, in the earlier days had become very strong Christians. As he lands the 7-47, a thought crosses Rayford’s mind is my wife still here, are my kids okay, is my family still alive? Guilt came upon him, thus he was struggling with his marriage, and he thought about having an affair with his head stewardess, Hattie. Hattie befriends a young journalist on the plane and they try to make contacts with their families after the Rapture. They plan to keep in touch after the plane lands. After hours of confusion and turmoil passes, Rayford makes his way home. Only to find his wife and son missing, their clothes being the only piece of evidence left. When the dramatic feeling sets in, he contacts his daughter, Chloe, and right away she makes her way home. In desperate need of answers, Chloe and Rayford search for answers about these mysterious cases of disappearance. Suddenly, Rayford remember his wife talking about what the Christians called â€Å"The Rapture†, she was always bringing up how they would vanish from the face of the earth. Rayford took her for granted and forgot about it completely. Everything she said began to make more and more sense, so to find the rational explanations he needed to answer these prophecies, he picked up the Holy Bible. Rayford took the next step; he went to his wife's church to find Bruce, who was also too proud to accept a word the Christians had said before the Rapture. Bruce gives Rayford a video of explanation for the Rapture and Rayford studied it. In the tape, he learns that the Rapture is the event in where Jesus takes his followers, known as the Christians and brings them to heaven, where the Christians will receive eternal life. At the end of the video Rayford Steele then received the Lord God into his heart and became a Christian.

Aspect of family in the film Pushing Hands Essay

Family has been depicted as one of the most important aspects in a number of films. Notably, many people believe in family as the most useful unifying aspect among various groups. In China, for instance, family is considered to be among the factors that individuals need to hold so dear to them. Various movies have been produced with the aspect of family being given weight in the movies. In addition, the cultural aspect of family has also been seen to be a factor that most individuals consider to be highly imperative in bringing to life the movies in question. This paper seeks to carry out an analytical interpretation of the aspect of family in the film Pushing Hands. In every family, father-to-son relationship is often seen as factor that is quite essential in bringing together the various family members. In addition, when the father and the son are at logger-heads, family unity is at a point of jeopardy and might escalate to highly detrimental scales. Apart from securing a unified family, father to son relationship is always considered a great aspect, especially in Chinese culture. In addition, most parents struggle to ensure that their children do not go against the immortal cultural values that each group is inclined to. Particularly, Chinese parents often want to see their sons embrace the Confucian cultural values even if they are in other countries (Huang, 2000). In line with family relationships between a father and a son, the film Pushing Hands seek to bring to the audience the idea of how westernization has affected family cultural values for the Chinese. Furthermore, the father (Mr. Chu) disagrees with his son Alex on the various family issues and cultural differences between the life in the United States and life in his home town Beijing, China. The film portrays the father son relationship as a cultural factor that should not be taken for granted and as an element that is highly significant in Chinese cultural aspects. As such, the script writer of the film has ensured that the film uses the best characters to bring out the issues of father-son relationship and the elements associated with the cultural differences between those living in the western countries and those living in China. Mr. Chu (Sihung Lung) who is an elderly man has fully devoted the wider portion of his life to the aspect of studying and teaching other learners tai chi in China. As a result of old age and the desire to be closer to his family, he makes up his mind to move in and stay with his son who is in the United States. However, having lived his entire life in Beijing, China, the elderly man finds it hard to cope with the different cultural factors in the United States. On the other hand, his son Alex (Bo Z. Wang) has been living in New York City for quite some time and has partly been affected by western cultural aspects which are totally different from the Chinese way of life and Tai Chi teachings (Hua-feng, 2013).One of the major family challenges that greatly affect the father and the son is the fact that the father arrives in New York without knowing any English word. In addition, the son is highly Americanized that it would be hard for the father to understand him. Besides, Alex has a w ife named Martha (Deb Snyder) who is a writer dealing with the pressure of trying to make sure she publishes her first novel, apart from taking care of her six-year-old kid. Mr. Chu faces the challenge of being totally at odds with a number of American customs and various technological factors. Furthermore, Mr. Chu cannot walk in New York alone as he easily loses his way. Since Mr. Chu is completely dumb on various factors in the American way of life, Martha begins to feel irritated with the fact that she might be taking care of two children. This is because the elderly Mr. Chu has to be taught everything as a child. While staying with his son, Mr. Chu develops a feeling that he has lost his dignity and independence thereby making the relationship between him and the son more challenging. Eventually, the elderly father tries to work things out on his own and look for a job. However, the harder he attempts to fit in the American culture and make New York look like his home, the more unfamiliar he seems to be. The elderly Mr. Chu feels lost in a different culture at a time when his son is feeling at home and has no issues being seen as an Americanized Chinese. The differences in cultural affiliations make the relationship between Mr. Chu and his son extremely difficult (Chan, 2004). The significance of the issues of father to son relationship in a family is highly relevant in the wider cultural context. The complexity in the relationship that is brought by different adaptation techniques to distinct cultures give the audience the most appropriate ways through which culture can be viewed in a wider perspective. The title is highly appropriate as it tries to bring out the facts about pushing an individual to conform to a cultural affiliation that is totally different from their original culture. In the non-aggressive turn of events between the father and the son, it is apparent that cultural fidelity is hard to break, and even if one does break it, it has to take quite a long time. The aspect of cultural conflict is an element that keeps on making various family ties broken hence making it difficult for the individuals involved to foster unity between themselves (Zhang, 2002). In the book From ‘Minority Film’ to â€Å"minority Discourse,’† Screening China, Zhang (2002) asserts that cultural aspects such as ethnicity and race play a major role in ensuring that family ties are kept alive. In addition, he argues that failure to stick to the family ties would lead to cultural conflicts. This cultural conflict is the main element that Master Chu find himself in and creates an internal misunderstanding in his cognitive thoughts. Even though his daughter-in-law totally misunderstood him, making him feel discontent and disgraced, the elderly Chu made sure that his efforts to cope up with American culture were kept alive. When he finally disagrees with his son over alleged mistreatment from the wife, he decides to gracefully have his way and walk out of the house. Consequently, after going his own way, Mr. Chu finds his own niche where he can have no one minding about his inclination to Chinese way of life. In conclusion, family and cultu re have been depicted as some of the most important aspects that need to be considered in learning cultural factors. Besides, culture has been seen as a major defining factor when it comes to association and togetherness. References Chan, K. (2004). The global return of the wu xia pian (Chinese sword-fighting movie): Ang Lee’s Crouching Tiger, Hidden Dragon.  Cinema Journal,  43(4), 3-17. Hua-feng, L. I. (2013). Contradiction and Harmony of Family Ideas between China and America Reflected in the Movie, Pushing Hands.  Journal of Yunyang Teachers College,  2, 018.Huang, S. (2000). Ten thousand businesses would thrive in a harmonious family: Chinese conflict resolution styles in cross-cultural families.  Intercultural Communication Studies,  9(2), 129-144. Zhang Yingjin, (2002). â€Å"From ‘Minority Film’ to â€Å"minority Discourse,’† Screening China (73-90) Source document

An investigation of code-switching in English classes at the University of Danang- College of Language Studies

Bilingual speakers usually tend to switch some words or phrases from one language to another during conversation, which is called â€Å"code-switching†. According to Heather Coffey, code-switching is the practice of moving between variations of languages in different contexts. Code-switching is also intentionally or unintentionally practiced frequently in class. This research will focus on code-switching practice in class of both teachers and students in Danang University- College of Language Studies, how it is performed, what effects it might create as well as some suggestions for this problem. Techniques for this research such as observations, interview and taking of field notes are used as means of data collection.Chapter 1: Introduction 1.1 Problem statementEnglish ranks second in top 10 Most Spoken Languages in the World. In Vietnam, learning English now is becoming more popular than ever before. For those who know English, they tend to mix the two languages, i.e. English and Vietnamese, in conversation. Code-switching, the practice of moving back and forth between two languages or between two dialects or registers of the same language, therefore is inevitable and sometimes unconscious, especially when they are having English classes.For example, in an English class at Danang University- College of Language Studies, a teacher says: â€Å"Cà ¡c em là  m bà  i  writing rá »â€œi submit cho cà ´ qua mail.†, and students ask: â€Å"Deadline là   khi nà  o vá º ­y cà ´?† Those are just two in tons of code-switching that can be found in English classes. The frequency of finding code-switching practice inside classrooms is very high and it is worth paying attention to work on. That is the reason why I would like to take on this problem to investigate. 1.2 Research rationaleNowadays, English is an obligatory subject at school, a means of international communication, and a second language in our society. Our college, the College of La nguage Studies, offers official, integrated and advanced language training, of which the strength is English. Moreover, students who study English are better prepared and have larger vocabulary since they are taught English at high schools. Finally, it is not only students but also the teachers that code-switch in class for many reasons.Therefore, the finding of code-switching between English and Vietnamese is much higher than in other languages. By carrying out this study, I hope that it will help the students and the teachers as well be aware of code-switching in class and through some general suggestions for this issue, they can find specific solutions to avoid the drawbacks and make code-switching an effective tool for learning and teaching English. 1.3 Research scopeCode-switching is a broad topic since it occurs in many aspects of our lives. However, in this research, I only focus on code-switching in English classes performed by teachers and students of Danang University- Col lege of Language Studies- Department of English because I think it is more practical and feasible. Therefore, the process of interviewing and observation will take place in some English classes and some notes are also taken from the Internet. All the participants taking part in this study are required to use Vietnamese as their mother tongue, and English as their second language.1.4 Aims and objectivesThe study explores the use of code-switching in English classes at the College of Language Studies. Specific objectives are set as follows: Examine the frequency of code-switching found in these classes Investigate the  fluency and accuracy of the participants who apply code-switching in their classes Investigate the purposes and reasons for the practice of code-switching in classes Present an array of the influences of this practice1.5 Research question– What is likely to be the frequency of the practice of code-switching in English classes? – What are the reasons and purposes for code-switching in English classes? – What are the effects that code-switching might create and what can be done to make it a useful tool for teaching and learning English?1.6 HypothesisFirstly, it is hypothesized that the frequency of code-switching among bilinguals is very high because of a number of reasons. It may occur because there are no equivalent words, to convey intimacy, to avoid being overheard or understood, to add emphasis and some other reasons. Such reasons were anticipated in the findings of Nguyen Ha Quyen (2011). In addition, Walid M Rihane (n.d) also provided five reasons for code-switching, which are solidarity, social status, topic, affection and persuasion.Secondly, there is a tendency of practicing code-switching in class more, especially amongst students since they are encouraged to use English in classes; their vocabulary and grammar, however, is sometimes not enough to express their feelings or ideas. This may cause some effects such as words and phrases are applied in the wrong way, some students might transcribe some words to the accents and dialects that they are familiar with and so on.Chapter 2: Literature Review2.1. Previous studies 2.1.1 Code-switching in conversationCode-switching is one of the major issues in bilingual research. According to Milroy and Muysken (1995), the switches occur in different ways, sometimes the switching occurs between the turns of speakers in a conversation, sometimes between utterances within a single turn and sometimes even with in a single utterance. Nguyen Ha Quyen (2011), also investigated code-switching in conversation of Vietnamese teenagers, she pointed out that â€Å"to some people, Code-switching has become a habit and most time occurs subconsciously when speaking with people at the same age† and that â€Å"code-switching should be viewed from the perspective of providing a linguistic advantage rather than an obstruction to communication.†2.1.2. Why do peop le code-switch?Code-switching often happens with bilinguals and there are many reasons for this. Walid M Rihane (n.d) argued that code-switching is motivated by five main factors, which are solidarity, social status, topic, affection and persuasion. Some research has also found that people code-switch to emphasize or clarify a particular point, to reinforce a request, to substitute a word or to express a concept that does not have a direct equivalent in other language. Specifically, Nguyen Ha Quyen (2011), provided some factors that influence code-switching, such as: – No equivalent words in Vietnamese.2.1.3 Code-switching in the classroomCurrently, there has been several research on this field. Ehsan Rezvani (2011), in the research â€Å"Code-switching in Iranian Elementary EFL Classrooms: An Exploratory Investigation† proved that â€Å"code-switching is a readily available and frequently applied strategy for foreign language teachers in classroom interaction and cla ssroom management†, â€Å"although the teacher enjoyed high English proficiency levels, they did not maximize the target language (i.e. English) in their classroom interactions†. In addition, Bulelwa Ndabeni (2002) argued in her research â€Å" An investigation of Code Switching in different learning areas in a grade seven class† that â€Å"code switching has an important role to play in the school classroom, but more longitudinal studies are needed on the implications of code-switching†.She noted that â€Å"we must also be careful of the other negative side of classroom code switching†; â€Å"teachers should be aware of the importance of code switching in the classroom, but they should not use it as an avoidance strategy†. In my research, therefore, I will present some general suggestions to make code switching more useful in English classes. Chapter 3: Methodology and procedures3.1 Research methodI propose a qualitative study using question naires, observation and in-depth interview methods. Specifically, I would like to use questionnaires to collect the data. One of the major advantages of this method is that it provides possible anonymity and avoids embarrassment on the part of the respondents. It can be easy to gather a large amount of information to analyze. However, using questionnaires also brings some drawbacks. Therefore, I would also choose natural observation, which involves observing behavior as it takes place in the environment. In this case, the environment is inside the classroom of English classes. Observation is a useful strategy.For Saurab, â€Å"It is the primary mode of acquiring knowledge about the environment†. This method will help the researcher avoid the wide range of problems that is usually found if using questionnaires. For example, when having questionnaires delivered to the respondents, the researcher might not always get accurate or complete answer, or respondents may answer in ways that correspond to what is socially desirable. In addition, in-depth interview is used as well. This is a powerful data collection method. The biggest advantage of this method is that there is time for the respondent to further develop and give reasons for his or her point of view- without being influenced by the opinion of other respondents.3.2 Description of population and sampleThe participants of the study are teachers and students of The University of Danang- College of Language Studies- Department of English. Those participants, especially students, come from different cities and provinces. The gap of facilities needed to learn English, therefore, may exist amongst the students. Furthermore, the participants are required to use Vietnamese as their mother tongue, and English as their second language.The chosen  type of sample is simple random sample, i.e. each unit in the population has an equal chance of being selected. According to Natalie Andrew, â€Å"freedom of human b ias and classification error remains one of the biggest advantages simple random sampling offer† and â€Å"if done right, simple random sampling results in a sample highly representative of the population of interest.†3.3 Data CollectionInformation will be collected by observing randomly some English classes with Vietnamese teachers. These classes could be for first year or even final year students, since even first year students study integrated English. The researcher will record the date or take some notes. Furthermore, as mentioned above, questionnaire will be used as one of the method to collect the information. The questionnaires will include both closed and open questions and they will be delivered to random classes in the college. In addition, some interviews are also conducted to find out the ways and the reasons for code-switching. The interviewer will ask some closed and open questions and then probe for elaboration. In this way, data will be collected by tak ing notes.3.4 Instrument for data analysisThere will be some instrument needed for data analysis. For interview, it is needed to have a computer and a recorder apart from notes. The computer is to type and edit questions and answers and to save the information after the interview. It is used to design the questionnaires as well. It is also necessary to have a simple calculator to figure out the frequency of the practice of code-switching through its occurrences. In some cases, Microsoft Excel is used as a tool to help the researcher analyze faster and more accurately.3.5 Data analysis and expected findingsData collected will be dissected by logical and statistical techniques to correspond to the followings: the frequency of using code-switching in English classes of both teachers and students, the purposes and the ways of practicing code-switching. The researcher will count the occurrence of code-switching in the data collected, then identify the frequency. Information from the inte rview and questionnaires will be analyzed mainly to get the reasons and manners of performing code-switching in classes. Finally, the researcher makes a report to present the findings.

The Prairie Schooner, Americas Classic Covered Wagon

The Prairie Schooner, Americas Classic Covered Wagon The prairie schooner was the classic covered wagon that carried settlers westward across the North American plains. The nickname came from the typical white cloth cover on the wagon, which, from a distance, made it resemble the white cloth of a ships sails. Prairie Schooner The prairie schooner is often confused with the Conestoga wagon, but they are actually two very different types of wagons. Both were horse-drawn, of course, but the Conestoga wagon was much heavier and was first used by farmers in Pennsylvania to haul crops to market. The Conestoga wagon was often pulled by teams of up to six horses. Such wagons required reasonably good roads, such as the National Road, and were simply not practical for moving westward across the plains. The prairie schooner was a lighter wagon designed to travel great distances on rough prairie trails. And the prairie schooner  could usually be pulled by a single team of horses, or sometimes even one horse. As finding food and water for animals could present a serious problem while traveling, there was an advantage to using light wagons that required fewer horses. Depending on the circumstances, prairie schooners would also be pulled by oxen or mules. How They Were Used Adapted from light farm wagons, prairie schooners generally had a canvas cover, or bonnet, supported on wooden arches. The cover provided some protection from sun and rain. The cloth cover, which was typically supported on bows of wood (or occasionally iron) could be coated with various materials to make it waterproof. The prairie schooner would typically be packed very carefully, with heavy pieces of furniture, or crates of supplies, placed low in the wagon box to keep the wagon from tipping on rough trails. With the possessions of a typical family stowed aboard the wagon, there generally wasnt much room to ride inside. The ride was often pretty rough, as the suspension was minimal. So many emigrants heading westward would simply walk alongside the wagon, with only children or the elderly riding inside. When stopped for the night, families tended to sleep under the stars. In rainy weather, families would seek to stay dry by huddling under the wagon, rather than inside it. Groups of prairie schooners often traveled together in the classic wagon trains along such routes as the Oregon Trail. When the railroads expanded throughout the American West in the late 1800s there was no longer a need to travel great distances by prairie schooner. The classic covered wagons fell out of use but became an enduring symbol of the westward migration.

Based in and based out of

Based in and based out of Based in and based out of Based in and based out of By Maeve Maddox M. Arun writes: Is it correct to say I work out of New York- to mean that ones workplace is in New York. Or to say I am based out of New York to mean you live in New York? It sounds a wrong to me! The use of out of described here may be a regional thing. It is not standard English. Ordinarily, the expression to work out of a place is used this way: Mr. Patel works out of his house. Mr. Patel has a home office where he runs his business or fulfills the obligations of a job (telecommuting). George works out of New York. George lives in New York, or his companys office is in New York, but his work takes him to various places. As for based, a person or a business can be based in New York. To say that one is based out of New York seems to mean that the person or business is located somewhere other than in New York. It seems a curious choice for someone to say Im based out of New York to mean merely I live in New York. I suppose that the use of based in this context could represent an effort to distance oneself from the place lived in: Im based in New York for now, but my real home is in Alabama. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Expressions category, check our popular posts, or choose a related post below:75 Synonyms for â€Å"Angry†10 Types of TransitionsHyphenation in Compound Nouns

Opposition to the DREAM Act Legislation

Opposition to the DREAM Act Legislation Imagine for a moment that you are a teenager: you have a group of close friends whove been with you since elementary school; youre one of the top students in your class; and your coach tells you that if you keep it up, you could have a shot at a scholarship, which you really need since your dream is to go into medicine. Unfortunately, you wont be able to fulfill your dream because of your parents undocumented status. As one of the 65,000 undocumented students in the U.S. who graduate from high school each year, you are barred from higher education and cannot legally obtain employment after graduation. Worse yet, there are people who in the U.S. who believe that all undocumented immigrants should be deported. Through no fault of your own, you could be forced to leave your home and move to a foreign country. Why Do People Think the Dream Act Is Bad for the U.S.? Does that seem fair? The DREAM Act, legislation that would provide a way for undocumented students to gain permanent residency through education or military service, is taking a hit from anti-immigrant groups, and in some cases, migrant advocates. According to the Denver Daily News, anti-illegal immigration advocate and former Colorado congressman Tom Tancredo said the bill should be renamed the NIGHTMARE Act because it will increase the number of people who come to the United States illegally. FAIR thinks the DREAM Act is a bad idea, calling it amnesty for illegal aliens. The group echoes many anti-DREAMers saying that the DREAM Act would reward undocumented immigrants and encourage continued illegal immigration, it would take education spots away from American students and make it more difficult for them to obtain tuition assistance, and passage of the DREAM Act would put additional strain on the country since the students could eventually petition for their relatives residency. Citizen Orange explains that the military provision within the DREAM Act is a cause for concern for some migrant advocates. The author says that because many undocumented youth are underprivileged, joining the military could be their only path to leg al status. Its a concern that depends on a persons view of military service: whether it is seen as being forced to risk your life, or an honorable way to serve your country. There will always be differing views and opinions on any type of legislation, but especially so when it comes to a controversial topic like immigration. For some, the debate is as simple as whether or not to make children suffer because of the actions of their parents. For others, the DREAM Act is only one small part of comprehensive immigration reform, and the effect of such legislation would be widespread. But for the DREAMers - the undocumented students whose futures depend on the outcome - the outcome of the legislation means much, much more.

Critical factors for successful implementation of ERP systems Research Paper

Critical factors for successful implementation of ERP systems - Research Paper Example Organizations are struggling to integrate new systems, introduce different ways to survive, and acquire the latest strategy possible. Successful system integration efforts provide competitive edge. The Information revolution has spawned numerous technologies geared towards automating the office. Information Systems has created new paradigm shifts in organizational processes. The trend in organizations is implementing Enterprise Resource Planning and Information Systems solutions such as groupware and enterprise applications, for example databases or shared repositories, intranets, workflow, imaging systems, and other customized applications. Technological advancement and continuous innovations have motivated organizations and businesses to react to changes in the global competition. Organizations have to reorganize, reevaluate and reprogram outdated functions and activities, and realign them to the present trends for improvement and competition. Personnel and field people, ordinary employees, including middle-level and top management have to refocus along the line of technological innovations. IT applications provide easy handling of strategic operations and other supervisory and managerial functions of the organization. External and internal environments in organizations are becoming complex; thus they are handled with a globally-oriented brand of management, with the aid of Information Technology. Corporate management is now handling a global-scale brand of management, requiring a different kind of strategy, much distinct from traditional management. Changes in the system demand new ways to integrate functions in the organization. Successful system integration efforts provide competitive edge. Motivations to integrate revolve around technological issues and globalization. Organizations however have limited options, and have to migrate to newer technologies (Mische,

Intr Lab Report Example | Topics and Well Written Essays - 1250 words

Intr - Lab Report Example In plants, an isolated seedling in fertile soil may have a very high chance of surviving to reproductive maturity. it will probably exhibit an extensive amount of module growth and will eventually produce a large number of seeds (Pujol 2006). However, a seedling that is closely surrounded by neighbours ,shading it with their leaves and depleting the water and nutrients of its soil with their roots, will be very unlikely to survive, and if it does, it will almost certainly form few modules and set few seeds (Wang 2005). Thus, it’s evident that the ultimate effect of competition on an individual is a decreased contribution to the next generation compared with what would have happened had there been no competitors. Thus the main aim of this report will be to test the null hypothesis that there is no statistically significant evidence in the data to show that the data provided is normally distributed. Group plants were collected and put into six pots per group while being planted at densities of 1,2,4,8,16,32 plants for every pot. Then a tray was used for storing tap water. The roots were keenly and carefully washed out in water while ensuring that the whole plant is kept intact. For each pot, the total root weight was taken, total shoot weight as well as total hypocotyls weight and the data recorded in an Excel table. The next step entailed calculating the mean weight (of shoots or roots or hypocotyls) per plant. Calculation of mean weight per plant was done by dividing the weights by the number of plants under study (Bossdorf 2005). Finally, all the contents of each pot were put into one bag and send to the oven – labelling the bag with the group name and plant density. There were a total of 6 bags. All the six bags were put inside another bag to keep them together. One group measured the dried plant parts and the data recorded to be used for analysis. Then graphs of the data were drawn to facilitate evaluation of the relationship between

The Competing Value Framework Essay Example | Topics and Well Written Essays - 1250 words

The Competing Value Framework - Essay Example It is important in determining the effectiveness of the organization and also is regarded as one of the important subjects in the organizational development which helps in improving the environment of the organization. It is regarded important for increasing the performance of the employees of the organization. The feasibility of the framework has been tested by various leading organizations and also by various business schools. It has served useful in understanding the marketing activities and also helps in successful integration of the marketing activities. The CVF framework helps in serving as a purposeful guide for the organizational mechanism and also regarded as a sense making device for the generation of new ideas, learning system etc. The study will give an insight into the CVF framework and its related activities, benefits, disadvantages. Finally, the study will conclude with recommendations which can improve the existing organizational system through the CVF framework. Back ground of Competing Value Framework The CVF framework evolved 25 years ago during the research and development on organizational effectiveness and culture (Walsh, 2002). The concept of organizational effectiveness is difficult and does not help in determining the different aspects of the organizational culture. ... The first aspect relates to focus of the employees in attainment of organizational objectives which lays emphasis on the welfare of the employees of the organization. The second aspect relates to the design of a strong organizational structure which lays emphasis on flexibility and stability. Both these dimensions relates to effectiveness criteria and authors Quinn and Rohrbaugh (cited in Cameron & Quinn, 2006) had named the four models as human relational, internal process, open system and rational goal model (Reed & Gordon, 2000). It was observed by this author that the CVF framework helps in resolving the organizational conflicts and then resume on the configuration of the coalition structure and also the dominant perception of success. The effectiveness of criteria of these varied dimensional models is based on the fact to improve the organizational structure (Ofori & Ranasinghe, 2000). The framework basically lays emphasis on the fact that whether they can deal with the problems and also evaluate the effectiveness in solving the problems. There is a close relationship between the organizational development and the four stages of organizational life cycle. The four stages include the entrepreneurial, collectivity, formalization and control stage and also the elaboration of the structure stage. As per author’s observation the different stages of organizational life cycle helps in facilitating the process of informal communication smoothly, development of a strong organizational structure and also promoting sense of cooperativeness among the organizational members (Rokeach, 2000). As per the observation of the authors the CVF framework helps in bringing stability in the organization, innovation and creativity

Women around the globe Essay Example | Topics and Well Written Essays - 1250 words

Women around the globe - Essay Example Over the years, the feminist movement has morphed into the global feminist movement, which champions for the rights of women from different sociocultural contexts. The new movement is sensitive to cultural issues that continue to infringe upon women’s rights and undermine the quality of their lives. Explored below is a brief overview of the global feminist movement and major issues that affect women within specific sociocultural contexts such as violence, poverty, suppression of sexuality, and infringement of the right to vote, access to education and employment opportunities. Global feminism, a derivative of postcolonial feminism, black feminism and postculturalist and postmodern schools of thought represents the application of feminist thought on a global scale in its display of unique overlapping characteristics as it focuses on advocating for a culturally relevant and positive change in women’s outcomes (Singh 628). Scholars theorize that it is an integral part of feminism’s third wave as it mirrors the latter’s three major characteristics, which include the acceptance of the existence of multiple narratives in diverse cultural contexts, acceptance of social activism, and the preoccupation with creating coalitions to tackle gender concerns instead of relying on a single organization to do so. The fundamental goal of the movement is responding to women’s local-level concerns while simultaneously incorporating the goals and philosophies of the earlier feminist movements. It continues to unite cultures with the sole intention of addressing women’s concerns that are emergent in countries external to the Western hemisphere. The global feminist movement exerts its mandate through the dismantling global patriarchal structures, which predispose chauvinistic attitudes that likely to contribute to the infringement of women’s rights; hence, their oppression. However, it is important to note that women

My Bus Tour from South Dakota, Pierre and to Mount Rushmore Essay - 9

My Bus Tour from South Dakota, Pierre and to Mount Rushmore - Essay Example The bus trip set off from South Dakota. Driving along the main road in South Dakota graced the cruise with the beautiful scenery of the Mythic Mount Rushmore. Driving across South Dakota to its outskirts covered over 200 miles across what was nothing less than jaw-dropping and cool scenery. The day-long drive took us to Pierre. As the bus cruised in the main road, we ogled at the beautiful sight of the mountain ranges cascading over each other, throughout the entire stretch. The green leafy vegetation and forest overgrowth complemented the beauty of the mountains and serve as homes of reindeers which occasionally leaped out and into the road. We could not be any closer to nature and its captivating beauty. In instances where the manmade activities interfered with the end trail of natural vegetation, we cited an array of dining joints, small-scale and large-scale casino saloons and lodging which testified of the industriousness of the people of South Dakota. From Pierre, we followed the US Route 83 to get across the Missouri River. As we turned westwards, the striking beauty of grasslands that accompanied us to Interstate 90 appeared to dance beautifully against the gentle breeze. From this juncture, we turned off to Murdo for tantalizing buffalo burgers. From Murdo, we drove to the Badlands National Park. One of the most memorable encounters in Badlands National Park was the dusty canyons therein. The Rapid City for dead American presidents also clearly served as another feather in Badlands National Park’s cap. The images of the dead American presidents are carved into the Black Hills and its high aesthetic presentation of America’s four great men and founding fathers served as the trip’s denouement.  Ã‚  

Groupon Essay Example | Topics and Well Written Essays - 750 words

Groupon - Essay Example But, this company proves that there is something for everyone. What Makes Groupon Unique Groupon is unique because it offers coupons that are usually good for only the day that the person purchases the coupons on. Groupon offers a signup membership and once people sign up, they receive daily deals and side deals for their signing up. Through the personal details about preferences that people give, coupons are customized to the purchaser’s characteristics. As the customers began to purchase the deals, Groupon could provide better deals based on what the customer purchased in the past. This was a very good way for customers to gain great bargains on many things that they would normally purchase. The inventors of Groupon were smart in finding the deals that were the most popular and offering them to people who really wanted these deals. Groupon was able to hire people to go to businesses and get them interested in the idea, which was also a brilliant idea. When you have people wh o are skilled at selling to businesses, it makes acquiring businesses easier. Social Media Social media played an important role in reaching customers. By putting Groupon on Twitter and Facebook, the company could expand to greater numbers. This was a good idea because these two social media giants would spread the word very quickly about the offers and bargains for people. The expansion to 70 American cities and 80 European cities was a big boon for the company because this growth showed how good the opportunity was for the company and for their customers. Working with Business Groupon was very smart in taking 50% of the revenues that came in on the deals. Since the business decided how many deals they wanted to do at a particular price, the business kept control of how quickly they wanted customers. Also, businesses did not have to spend anything until the customers actually used the coupon. This was a very good idea. Also, customers did not have to spend on a deal until it reache d the number of people that would close the full deal. This made it easier for customers to buy more deals. Marketing Marketing was very easy for Groupon because they used Twitter and Facebook and encouraged their customers to share the deal with their friends and family. When customers referred people to Groupon and their referral bought a deal, the referral source received Groupon dollars which could be used for other Groupon deals. By hiring creative writers and also copy editors Groupon was able to highlight their unique offers. Groupon had very good ideas for marketing and they were able to bring together people who believed in their concept and who were willing to keep the company moving forward. Groupon was also smart because they did not offer run-of-the-mill offers to customers. Instead, they found deals that were interesting and fun, and things that customers may not have tried in the past. This made them more popular and opened doors for the customers to try new things. L ike any good deal, other companies began to follow Groupon’s example, but because they chose specific niches, Groupon was still able to excel. Their ability to excel had to do with the people they hired to help. They still are one of the biggest companies in this industry. Opinion I believe that Groupon did not need to sell to Google. They have a large market share and they are ever expanding. The business has done very well without

My Bus Tour from South Dakota, Pierre and to Mount Rushmore Essay - 9

My Bus Tour from South Dakota, Pierre and to Mount Rushmore - Essay Example The bus trip set off from South Dakota. Driving along the main road in South Dakota graced the cruise with the beautiful scenery of the Mythic Mount Rushmore. Driving across South Dakota to its outskirts covered over 200 miles across what was nothing less than jaw-dropping and cool scenery. The day-long drive took us to Pierre. As the bus cruised in the main road, we ogled at the beautiful sight of the mountain ranges cascading over each other, throughout the entire stretch. The green leafy vegetation and forest overgrowth complemented the beauty of the mountains and serve as homes of reindeers which occasionally leaped out and into the road. We could not be any closer to nature and its captivating beauty. In instances where the manmade activities interfered with the end trail of natural vegetation, we cited an array of dining joints, small-scale and large-scale casino saloons and lodging which testified of the industriousness of the people of South Dakota. From Pierre, we followed the US Route 83 to get across the Missouri River. As we turned westwards, the striking beauty of grasslands that accompanied us to Interstate 90 appeared to dance beautifully against the gentle breeze. From this juncture, we turned off to Murdo for tantalizing buffalo burgers. From Murdo, we drove to the Badlands National Park. One of the most memorable encounters in Badlands National Park was the dusty canyons therein. The Rapid City for dead American presidents also clearly served as another feather in Badlands National Park’s cap. The images of the dead American presidents are carved into the Black Hills and its high aesthetic presentation of America’s four great men and founding fathers served as the trip’s denouement.  Ã‚  

Martin Scorceses The Gangs of New York Movie Review

Martin Scorceses The Gangs of New York - Movie Review Example Ken Burns' genius was to bring those photographs together in almost a cinematic way to make the war, and the people involved, more real. Scorcese's movie, although it takes place during the Civil War, is really not about that War at all. It is more about the earlier- and later-arrived Irishmen, and how they inculcated themselves into a hierarchical society in New York City. The first great Irish immigration wave was during the building of the Erie Canal in the 1820's. Most of the Irishmen who were already there and under the leadership of Bill "The Butcher" Cutting were part of the 1840's Irish potato famine crowd-a rough time for Irishmen to enter the U.S. as there were few jobs after the depression of 1848, and an actively hostile reception both from established Irishmen and the WASP's who controlled the political machinery of New York. Since Scorcese's movie focuses on the tension between "old" Irish and newly-arrived Irishmen, led by Leonardo DiCaprio's Amsterdam Vallon, the Draft Riots of 1863 are an inconvenient truth whose underlying issues are ignored in the movie. Without a knowledge of the actual historical events of the time, and only viewing the movie, one might be led to believe that the riots were about old versus new immigrants, contained by a WASP police force under the leadership of Boss Tweed. The reality was quite different: General USS Grant and President Lincoln needed hundreds of thousands of troops in order to maintain a numerical superiority over the South, and they regarded the Irish immigrants of New York as a ready source of human capital for the war. Those in New York who had few roots in the American culture did not want to throw themselves in front of Gattling guns and cannons on battlefields like Gettysburg and Appomatox. So how was the "truth" injured by Scorcese's movie One might argue that he should have chosen a different era, perhaps before the Civil War and not related to the Draft Riots, to exploit the tension between old and new Irish immigrants. While the plot could have been truer to historical fact, the tension of the plot might not be there. Scorcese needed to have a dramatic tension, a build-up, in his movie, leading to an apocalyptic riot where all of New York was burning. The 1863 riots provided that dramatic backdrop, one which would not have been available in the past. As contrasted to other movies covering the same time period, "Gangs of New York" offers three original contributions: (1) it features a part of the population during the Civil War that was not at the front lines, (2) it gives a young person's perspective, as compared to the older, in-charge leaders such as Boss Tweed and Lincoln, and (3) it is a group pastiche, rather than a concentration on one leader, such as is found in "Glory." Perhaps the best comparison to "Gangs of New York" is the epic "Birth of a Nation" by D.W. Griffiths (1915). Like "Gangs," "Nation" was an ensemble piece, one which explored not just the leaders of movements, but the underlying motivations behind the resentments and conflicts-in this case, between blacks and whites at the time of the Civil War and just after. Of course,

Come in-Ahhh Merciii Essay Example for Free

Come in-Ahhh Merciii Essay Scene V, Blanche: Come in-Ahhh Merciii Discuss this extract in relation to the rest of the text paying attention to structure, form and use of language. The ending section of scene five of Tennessee Williamss play A Streetcar Named Desire has provoked much confusion and debate as to the writers motives in regards to the portrayal of Blanche. One school of thought on the matter is that, in spite of the fact that Williams largely based the character of Blanche upon himself his primary aim in the play is to punish her for her failure to show empathy towards her homosexual husband Allan. Williams was of course a homosexual himself, living in a largely homophobic world where gayness was not a talked about subject. He often brought the issue up in his other works such as Cat on a Hot Tin Roof where the characters Brick and Skipper and both portrayed as possible homosexuals. Blanches lack of empathy and compassion are highlighted once again in this extract when she totally fails to take into account the feelings of a second young man, and instead uses him to live out her fantasies of desire for her late husband. During the exchange between Blanche and the young man she is portrayed as seductive and dominant I want to kiss you making it clear that she is the one initiating the situation, this is a dramatic contrast to her normal persona around other men such as Mitch and Stanley where she makes herself out to be both innocent and pure. This extract is one of the places where her illusion starts to slip and her past actions are hinted at to the audience. Blanches reaction to you young mans mention of cherry soda you make my mouth water has a strong sexually reference, a cherry being a metaphor for virginity, which probably only Blanche is aware of. This shows that she is simply playing games with the young man using him for her own enjoyment. In the next scene Blanche treats Mitch in a very similar way, after discovering that he does not speak French she says Voulez-vous couches avec mo ice soir? meaning would you like to sleep with me this evening? which is the call of a French prostitute. The lack of consideration that Blanche shows towards both men and the way she appears to be using them both (The young man for a thrill and Mitch for security) hints not only towards the fact that in the past she has sought remedies for her loneliness with strangers but also supports the metaphor presented later in the play of Blanche being a tarantula trapping her victims in a web of illusions Yes a big spider! Thats where I brought my victims. Another example of how Williams is using this scene to condemn Blanches can be found by looking at the actions of the young man. During the scene he speaks nervously and makes frequent glances towards the door portraying his wish to escape form Blanches and making it obvious that he is uncomfortable with the situation. Well Id better be-. When describing the young man Blanche repeatedly uses the word young and also calls him lamb, this not only enforces his youth to the audience but also the fact that Blanche is aware of how much younger than her he is. The final and perhaps most damming piece of evidence towards Blanche is her reaction towards Mitch at the end of the scene, where, having just kissed a young boy she greets the man she is hoping to marry with open arms, reverting back to her old illusion of purity. This shows her as uncaring and manipulative towards both parties, in the she takes on the roll of two completely different people to get what she wants. It also presents a hint that Blanche is lying about her sexual history. Blanches actions in this extract could also be seen as an example of deliberate cruelty, in so far as she is willing to take advantage of a confused and reluctant young man just for her own pleasure. Blanche has of cores been guilty of deliberate cruelty in her past when she spoke of her revulsion towards Allan I know. I saw. You disgust me. leading to his suicide. Deliberate cruelty is something that Blanche states that she despises and has Never been guilty off making her seam rather hypocritical. Some might argue in fact that Williams is in fact using this extract to elicit the audiences pity towards Blanche as opposed to their condemnation. Throughout the play reference has been frequently made to Blanches declining mental state, such as when Stanley takes the letters written by Allan away from her and she becomes hysterical. Williams gently reminds the audience of this in numerous ways throughout the extract. For a start, in reference to the lighter Blanche uses the word Temperamental, which is a very unusual description and probably intended to reflect upon her mental state. During the later part of the scene the convocation is accompanied by the Blue Piano, a recurring sign of Blanches guilt, misery and mental declination. It features at many points in the play, usually during periods of anguish for Blanche such as when she is reminiscing about the loss of Bell Reve to Stella. Blanches crumbling mental state is not helped by her alcoholism, another one of Williamss personality traits that feature throughout his plays, such as with Brick in Cat on a hot tin Roof. Although Blanche isnt actually drinking in this extract the audience knows that she has drunk earlier in the scene a shot never does a coke any harm and are shown how drink can make people do things be the actions of the drunken Negro woman just before the young man arrives. The negro woman cackling hysterically, swaying drunkenly comes around the corner. Williams may also have been trying to make the audience sympathise with Blanches paranoia about her appearance and desperation to feel young again. Earlier is the scene the audience sees Blanche looking in the mirror she is later to smash, showing emphasising her fragility about her looks. She also talked to Stella about her fading appearance I Im fading now. The audience has also been privy to Blanches hatred of light I cant stand a naked light bulb and her need to hear positive remarks about her appearance I was fishing for a compliment Stanley. Another factor that must be considered is that previously in the scene Stanley has begun to tear down the illusions Blanche weaves to protect herself be hinting that he knows about her past actions (Again hinting that Blanche is lying about her past) Shaw is under the impression that he met you in Loral leaving her exposed and in a state of hysteric shock shown by her frequent pauses in sentences and trembling her hand shakes so it almost slips form the glass. Perhaps the most likely explanation for this why this scene seems to show Blanche is two contradictory lights however is that Williams is deliberately leaving it ambiguous, allowing the audience to decide upon their own feelings towards Blanche, and that the true purpose of this scene is to prefigure the revelations about Blanches past, particularly her relationship with the 17 year old boy that lost her her job.

Songs in the Key of Stevie Wonder’s Life Essay -- Biography

At the young age of twenty two, Stevie Wonder sang, â€Å"When you believe in the things you don’t understand / Then you suffer / Superstition ain’t the way†. He started his career in the early 1960s, but in 1972, Superstition established Stevie Wonder as one of the most recognizable musicians of his time in American and African-American culture and music. Although music was Wonder’s main priority, he also dedicated his time to a fight against racism throughout national and international borders. Musically, socially, and politically, Stevie Wonder was able to bring people together with his music and words. From the time of his birth to the present day, Stevie wonder sang his way into our hearts and remains one of the most influential people within African-American history. Steveland Hardaway Judkins was born on May 13, 1950 in Saginaw, Michigan to Calvin Judkins and Lula Mae Hardaway. As his current musical career was groundbreaking, his family life was not so perfect. The relationship between Calvin and Lula Mae was difficult and abusive; even before Stevie was born, Calvin was drunk, domestically violent with Lula and forced her into prostitution to support the family and Calvin (Ribowsky 10). After Stevie’s birth, Calvin’s mannerism did not change and simply regressed. However, Calvin agreed to move to Detroit with Lula, Stevie, and his two elder siblings to Detroit to work on the relationship and family dynamic (Ribowsky 18). Calvin and Lula’s relationship later terminated with a divorce and a name change for Stevie, as his birth name was changed to Steveland Hardaway Morris. As the third child out of six, he was the only one to be born blind. Wonder was blind shortly after his premature birth from staying in an incubator for... ...r and a legal separation of race does not mean it is acceptable (Jet). Through his actions across the United States and South Africa showed the world how to be open to African-American culture and people. Stevie Wonder also sings â€Å"Broke the lookin’ glass / Seven years of bad luck / Good Things in your past† in his 1972 hit Superstition. However, Stevie Wonder did not come across any bad luck within his musical and political career. Both an inductee for Rock-and-Roll’s Hall of Fame and United Nations’ Messenger of Peace, Stevie Wonder brought insight to the minds of the public. Sixty years later, on March 1, 2011, Berry Gordy, Stevie Wonder, and other Motown singers came together once again at the White House to honor Motown music and its beloved singers; this came a celebration of the soulful music that Stevie Wonder and among others once and continue to sing.

Testing the Theory of the Oedipus Complex :: Psychology Psychological Experiment

Abstract from Paper: ___________________________________________________ THEORY: If a subject in the experimental group shows more aggressive behavior toward his father and increased affectionate behavior toward their mother after receiving the subliminal messages and the control group shows no increase when shown neutral messages, then it will be proven that the Oedipus Complex does in fact exist in the unconscious. To prove this we bring the behavior out from the unconscious to the sub conscious through the subliminal messages. These boys have repressed these feelings for so long because it is too painful for them to deal with. ______________________________________________________ Research Paper Begins Here   Ã‚  Ã‚  Ã‚  Ã‚  The positive libidinal feelings of a child to the parent of the opposite sex and hostile or jealous feelings toward the parent of the same sex that may be a source of adult personality disorder when unresolved. It is a pattern of profound emotional ambivalence, a troublesome mixture of love and hate.   Ã‚  Ã‚  Ã‚  Ã‚  The Oedipus Complex occurs during the phallic stage, from roughly ages 3-6 years. Freud believed that during this stage boys seek genital stimulation and develop both unconscious desires for their mother and jealousy and hatred for their father, whom they consider a rival. It was said that boys felt guilt and lurking fear that their father would punish them, such as by castration. Freud also believed that conscience and gender identity form as the child resolved the Oedipus Complex at age 5 or 6, but this actually happens earlier. A child tends to become strongly masculine or feminine without even having the same sex parent present.   Ã‚  Ã‚  Ã‚  Ã‚  Freud argues that all sons unconsciously desire to kill, even if they love, their fathers. He found his own unconscious wish to murder his father in his intensive self analysis in 1897, shortly after the death of his father.   Ã‚  Ã‚  Ã‚  Ã‚  Freud says it is only the male child that we find the fateful combination of love for the one parent and simultaneous hatred for the other as a rival. Freud believed Oedipal was a normal part of human psychological growth and it is during this stage children produce emotional conflicts.   Ã‚  Ã‚  Ã‚  Ã‚  Other psychoanalysts believed that girls experience a parallel called the "Electra Complex". This comes from a Greek legend of a women named Electra who helped plan the murder of her mother.   Ã‚  Ã‚  Ã‚  Ã‚  The Oedipus Complex originates from a myth about a Greek hero named Oedipus, written by Sophocles. Oedipus was the son of Laius and Jocasta who in the fulfillment of an oracle unknowingly kills his father and marries his mother. When Oedipus and Jocasta realize what has happened, Jocasta hangs herself and he rips the golden brooches from his dead mothers gown and plunges them deep

Wine Analysis of Fining Agents Chemistry

CHEMISTRY-WINE MAKING| Investigating the effectiveness of common fining agents on homemade fruit wine with respect to Turbidity, Sediment level, Ph and Alcohol content. | | Year 12 Chemistry| Extended Experimental InvestigationA comparison of chemical flocculation agents| Mario Mitov| Mrs Cullen 2011| | Contents: 1. 0- Abstract 2. 0- Introduction/Background 3. 0- Aim 4. 0- Hypothesis 5. 0- Safety analysis 6. 0- Equipment and Materials 7. 0- Procedures/Methods . 1- Initial wine making procedure 8. 2- Addition of clearing agents including ratio conversion 8. 3- PH testing 8. 4- Vinometer testing 8. 5- Hydrometer testing 8. 6- Turbidity testing (tube) 8. 7- Sediment level measurement 8. 8- Electric conductivity (EC) testing 8. 9- EC conversion to TDS 8. 10- Alcohol titration method 8. 11- Alcohol titration calculations (refer to journal) 8. 0- Results/ Data Analysis 9. 12- Graph1. PH over time 9. 13- Graph2. Alcohol %v/v over time 9. 14- Graph3. Sediment level over time 9. 15- Graph4. D ifference in sediment level over time 9. 6- Graph5. Turbidity over time 9. 17- Graph6. Electrical conductivity over time 9. 0- Discussion 10. 0- Conclusion 11. 0- Appendices 12. 0- References 13. 0- Special Acknowledgments 1. 0-Abstract: The construction of this EEI was conducted in accordance to the term 2 context (Wine: an artful process). This report is intended to present the experimental and analytical aspects of wine chemistry with focus on fining agents. By testing these fining agents on wine samples, their overall effectiveness will be observed and discussed with respect to pH, Turbidity, Sediment level etc.This will help draw a valid conclusion as to the fining agent that has the greatest clarification effects on the tested wines and to what extent. 2. 0- Introduction: The ancient process of winemaking has captivated the human civilisation for thousands of years. Archaeological findings have shown that the earliest production of wine can be traced back to 8000BC in the regi on of modern day Georgia, Iran and Armenia (Merveonur, M. 2011). Since then the art of vinification has been continually evident throughout history with its significance highlighted in many of the world’s greatest cultures.Take for example the ancient Egyptians of third millennia BC that used wine for sacred ceremonies or the ancient Greeks that traditionally conducted symposiums (social parties) by drinking wine in large groups (Biers, W. 1980). Throughout the ages wine has undoubtabley been valued for its significance in society, culture and even religion, with its importance still prevalent in the modern world. In Australia, the exportation of wine currently contributes an astounding $6 billion dollars to the nation’s economy (Adams, P. 2005).In fact, Australia is recognised as the fourth largest exporter of wine in the world. The country’s eight constitutive states all commercially produce wine of high quality with vineyards occupying approximately 160,000 h ectares throughout Australia (Wine Australia, 2010). States such as Victoria and South Australia are internationally renowned for producing highly exquisite wines that undergo the finest vinification. The process of producing wine is one that involves multitudinous techniques and requires a thorough scientific understanding referred to as Oenology.Oenology is the modern study of winemaking encompassing everything from the initial fruit growth to the extensive chemistry behind the entire process (Boulton, R. 1996). Vinification ultimately consists of many biochemical processes that must be carefully monitored and controlled to ensure success. The primary chemical process involved in any wine is the initial fermentation which is responsible for the formation of ethanol. During this stage, common fruit carbohydrates such as glucose and fructose are converted to alcohol through anaerobic yeast respiration (Fugelsang, C. 1997).Ultimately, the yeast which are facultative fungal organisms provide enzymes that break down sugar molecules while releasing Ethanol and Carbon Dioxide as by-products through the exothermic reaction: C6H1206 —>2CH3CH2OH + 2CO2 + 115kj/mol. Winemakers will usually stop the fermentation process once a desired alcohol level is achieved however the fermentation can naturally stop after reaching a certain level of alcohol that subsequently becomes toxic to the yeast thus killing them (Smith, D. 2009). Once fermentation is over, many wines may display signs of turbidity or cloudiness.This is due to suspended particulates such as proteins, tannins, phenols or dead yeast cells that cause haziness in wine when not removed. These particles can precipitate out of the wine naturally under the influence of gravity however this is a lengthy process and those that want fast results rely on chemical clarification. Chemicals for the purpose of wine clarification are known as fining or flocculation agents and are widely used in the wine industry. These agents are commonly derived from Earths, Proteins, Carbons, Synthetic polymers, Polysaccharides and other substances (Zoecklein, B. 988). It is extremely important that a commercial wine be cleared of any suspended impurities so that it appeals to the consumer. Fining agents generally clarify the wine in three different methods including electrostatic attraction, absorption or enzymatic break down (Main, M. 1995). The most common method however is through electrostatic attraction as this is displayed by the majority of fining agents. Theoretically the suspended particles in wine all carry a corresponding electrical charge therefore by dding a fining agent of the opposite charge the particles adsorb to the surface of the fining molecule forming heavy clumps (refer to appendix figure 1). The clumps rapidly sink to the bottom due to their high density relative to that of the wine (Guerra, B. 2008). Ultimately, three fining agents were selected as test subjects for the experiment that w as to be conducted. These agents include: Bentonite which is aluminium phyllosilicate clay with a negative charge, Isinglass; a collagen derived from fish that carries a positive charge and Kieselsol/gelatine which is a fining agent utilizing both a positive and negative charge. 3. 0- Aim:The general aim of this scientific investigation is to assess the efficiency and clarification capabilities of three difference fining agents including; Bentonite, Isinglass and Kieselsol/Gelatine. The results obtained from the wines treated with fining agents will be contrasted to those obtained from the wine without the presence of a fining agent. This will indicate any trends in the data as to which fining agent is most efficient and if there is a great difference between the rate of clarification of the wines subject to chemical fining as opposed to the wine subject to natural clarification under the influence of gravity alone.By testing parameters such as Ph, Turbidity, Sediment level, Alcohol content and Electrical conductivity some relationships between the results obtained and variables will be analysed to justify the efficiency of the flocculation agents. 4. 0- Hypothesis: It can be hypothesised that all three fining agents will have noticeably different effects on the wine clarity. The ‘Kwik Clear’ agent is predicted to exhibit the greatest impact on clarification as it comprises of both Kieselsol and Gelatine which are agents of opposite charges.This will hypothetically create more lees as the negative and positive charges together will in turn attract more suspended particulates of either electrostatic charge. On the other hand, the negatively charged Bentonite agent is also expected to demonstrate immense fining capacity due to its great molecular surface area that will prompt the adsorption of high amounts of positively charged particles. The Isinglass agent is ultimately expected to perform less desirably as it is by nature a delicate, positively c harged agent with weak fining abilities due to it fragile molecular structure.Finally, the wine without the presence of fining agents (the control), will undoubtabley show the least satisfactory results in terms of clarification. Some sedimentation may occur due to the natural impact of gravity however this will be limited and substantially less in comparison to the wine treated with fining agents. 5. 0- Safety Analysis Due to the topic of this assessment (wine making), the laboratory has been used extensively for nearly all aspects of this assignment including the creation of wine and testing. Safety precautions must therefore be exercised together with strict lab etiquette to prevent dangers arising.Students must remember at all times to abide by the rules which include: 1. Conducting one’s self sensibly and responsibly at all time especially when handling chemicals of potent nature. 2. No food or drinks to be brought into the laboratory to prevent the possibility of contam ination with harmful substances. 3. Long hair must be firmly tied back to reduce the risk of exposure to corrosive chemicals (or the risk of contaminating the wine). 4. Safety goggles, aprons, lab coats and gloves should be worn at all times to minimise the risk of body exposure to chemicals especially the eyes. . All experimental instructions must be read and understood precisely before conducting the experiment. 6. Sitting on top of the laboratory benches is prohibited. 7. Sitting on chairs while performing chemical experiments is forbidden. 8. The labels of chemicals utilized must always be read so that one is aware of the risks and nature of the particular chemical. 9. Extreme caution must be taken when handling glass apparatus to ensure no breakage. 10. Any breakage or chemical spills must be immediately reported to the teacher so that the risk may be quickly contained. 11.Carrying chemicals or glass across the room is not advisable and carries a great degree of risk. 12. Runni ng whilst in the premises is strictly forbidden 13. All students must wear closed in shoes to protect feet from spills that may run down the benches. 14. All individuals must be aware of the nearest fire exits and have an understanding of how to use the fire blanket in case of emergency. 15. Any skin contact with chemicals must be quickly reported to the teacher and subsequently washed under running water for 20 minutes or the eye bath when contact has occurred with the eyes. 16.Any instructions given by the teacher must be followed without hesitation. Note: During the course of the wine making, student are required to perform titrations which require the handling of some extremely noxious chemicals including carcinogens, potent acids and allergens that must by all means be handled with immense care. Many chemicals also have the tendency to cause problems with the respiratory system when inhaled thus any chemical must be distanced from the nose or mouth. 6. 0- Equipment and Material s. Initial wine making: Supplied by school 1. 5L Demijohn with stopper (fermenter) 2.Air-Lock 3. Plastic bucket 4. Wine making yeast 5. Tartaric acid 0. 5tsp 6. Nutrient (Diammonium Sulfate, Ammonium Sulfate or Ammonia Phosphate) 7. Sodium Metabisulphite wash solution (0. 5tsp in 0. 5L of water) 8. Campden tablets 9. Pectinase 10. Funnel 11. Sleeve 12. Plastic champagne cork 13. Plastic tubing 14. Balloon 15. Cottonwool 16. Hydrometer 17. Vinometer 18. 100mg Vitamin C tablets as preservatives Initial wine making: Supplied by student 1. Tea towel 2. 6-8 very ripe bananas 3. 150g Sultanas 4. 8kg very ripe fruit (oranges for this group) 5. 3 tea bags 6. 7x 750mL Wine bottlesAdding/preparing the fining agents: 1. Bentonite (Brewcraft) (solid form) 2. Isinglass (Brewcraft) (liquid form) 3. Kieselsol/Gelatine (Kwik Clear) (liquid form) 4. 2x small beakers 5. 1x 0. 1mL increment glass pipette and 1x medium 1mL increment glass pipette. 6. Electronic scales 7. Plastic milkshake cup (to blend Bentonite) 8. Electric blender 9. Distilled water Testing the wine for all parameters: 1. PH meter 2. Hydrometer 3. Vinometer 4. Turbidity tube 5. EC meter 6. Ruler or tape measure (for sediment measurement) 7. Wine samples 8. 4x beakers 250mL 9. 1x large measuring cylinder 10.Distilled water 11. Disinfectant solution (Sodium percarbonate) 12. Funnel 13. Gloves Performing the titration for alcohol concentration: 1. 10mL wine sample 2. 60mL of Potassium Dichromate 3. 100mL Standard sodium thiosulphate solution (0. 1M) 4. 30mL of 40% sulphuric acid 5. 6 g Potassium Iodide 6. 250mL distilled water 7. starch indicator (starch solution, freshly made) 8. 10mL pipette 9. 2 ? 20mL pipettes 10. pipette filter 11. 250mL volumetric ? ask 12. 3 ? 250mL conical ? asks with stoppers 13. 10mL measuring cylinder 14. small funnel 15. burette and stand 16. white tile 17. hot water bath 8. thermometer 19. spatula 20. electronic balance 21. safety glasses 7. 0- Procedures/Methods 7. 1- Initial wine ma king procedure: 1. Pour sachets of yeast into a 750mL bottle with the addition of 2 tbsp sugar, 0. 5 tbsp acid and half-fill the bottle with water placing a balloon over the neck when finished. 2. Fill the bottle with water when the balloon has popped up. Replace the balloon afterwards. 3. Once the balloon ‘pops up’ a second time, put the bottle in the fridge. 4. Wash bucket, knife, working surface and all fruit with sodium metabisulphite solution. Avoid rinsing fruit! 5.Remove any really bad parts off the fruit. (it’s not a problem if the fruits are mildly squashed or discoloured). 6. Chop the fruit into approximately six pieces each and place into bucket. 7. Add/mix the following into the fruit: 0. 75 tbsp acid, 0. 75 tbsp nutrients, 0. 75 tbsp Pectinase or 7. 5 drops Pectinol, 7. 5mL Sodium metabisulphite, 150g sultanas, 6-8 bananas, 3 tea bags and 7. 5L water. 8. Leave to rest for 24 hours. 9. Once 24 hours have passed, ass half of the bottle of yeast from st ep 3 and 750g sugar to the bucket. Stir well, then put a plate on top of the fruit. This will keep it in the liquid.The whole thing should be covered with a damp towel. 10. Add an additional 1. 5 tbsp of sugar to the yeast bottle and fill with water. Replace the balloon in the process. 11. Begin stirring the bucket with fruit once a day for 3-4 days consecutively. 12. The funnel, strainer and fermenter must be washed with sodium metabisulphite solution for adequate disinfection. 13. Transfer the liquid contents of the bucket into the fermenter using the funnel and discard any solids in the process. 14. Any remaining liquid must be placed in bottles, stoppered with cottonwool in the neck and placed in the fridge. 5. Use sodium metabisulphite to fill the airlock to half of each chamber. 16. After a week has passed, use PVC tubing to transfer the liquid at the top into the bucket, ensuring the lees (sediment) is left at the bottom during siphoning. 17. Discard the lees, rinse out the f ermenter and then replace the liquid back into the fermenter. Use bottles from step 14 to top up the fermenter as needed. Taste and add 150 g of sugar if it is too dry. Also add 5mg of Campden tablets. (Warning: Campden sulphur allergies) 18.Repeat step 16-17 (which is a process called racking) about once a week for 3-4 weeks. If sugar added, a record must be kept of the exact quantity. 19. When clearing from the top of the wine has initiated, the airlock chambers are evening out and the hydrometer reading is between 1005 and 995, repeat step 16. 20. Taste the samples. If a sweet wine is desired, put 100-150g of sugar in a saucepan and cover with wine fermenter. Heats until the sugar has dissolved and then gradually add this to the wine until the desired balance of sweetness is obtained. 21.Add 10ml of Sodium metabisulphite and 1000mg of orange flavoured vitamin C (as a preservative). 22. Wash bottles and cork in the solution of sodium metabisulphite and shake out but don’t r inse. 23. Put wine into bottles and cork storing it in a cool dark place. **(refer to journal for information about the key ingredients of the wine making process) 7. 2- Addition of fining agents including ratio calculation: Isinglass Note: The wine used for each fining agent was racked moments before adding the agents. This ensured that any sediment formation with the fining agents would be easily noticeable and recordable. . Read the instructions on the back of the Brewcraft Isinglass bottle. These instructions stipulate that 10mL are mixed in 25L of wine with the 10mL firstly mixed in a 250mL aliquot before being added to the bulk. 2. The wine bottles used in this experiment contained 750mL of wine therefore calculations were performed to find how much Isinglass must be added to 750mL. 3. Firstly divide 10mL by 25,000mLwhich equal 4Ãâ€"10-4. 4. Secondly, multiply 4Ãâ€"10-4 by 750mL which equals 0. 3mL (this is the amount of Isinglass to be used for 750mL of wine). 5.To find how much of the 750mL of wine must be used to initially pre mix the isinglass before adding it to the bulk, the following was calculated: 25,000mL divided by 250mL equals 100; 750mL divided by 100 is equal to 7. 5. Therefore 7. 5mL of wine must be mixed with 0. 3mL of Isinglass before adding it to the 750mL bulk. 6. Extract 7. 5mL of wine using a small disinfected pipette placing this aliquot in a small beaker. 7. Extract 0. 3mL of isinglass with a small disinfected pipette and place it in the beaker with the 7. 5mL aliquot. 8. Mix the fining agent in the aliquot of wine for a few minutes making sure to swirl it as well. . Using a funnel, replace the mixed aliquot back into the 750mL bulk. 10. Label the bottle, indicating the fining agent used and the dosage. 11. Place cottonwool in the neck and return bottle to the fridge. **(refer to journal for information regarding Isinglass) 7. 2- Addition of fining agents including ratio calculation: Kieselsol/Gelatine (Kwik Clear) 1. Read the in structions on the side of the Kwik Clear box. These instructions specify that 2mL of Bottle A (containing Kieselsol) must be added per gallon of wine. 2mL of Bottle B (containing Gelatine) must also be added per gallon. . Simple calculations were conducted to find how much of Bottle A and B is to be use for the 750mL bottles. Firstly 1 Galloon equals 4. 5 litres therefore 4500mL divided by 750mL equals 6. 3. 2mL divided by 6 equals 0. 33mL hence, 0. 33mL of both Bottle A and B is to be mixed into 750mL of wine. 4. Premix is not required for Kwik Clear therefore the fining agents can be directly added to the 750mL bulk. 5. Using a small disinfected pipette, take 0. 33mL of Bottle A and place it directly into the 750mL wine. 6. Stir well, then wait approximately 30 minutes before adding Bottle B. . Using a small disinfected pipette, extract 0. 33mL of Bottle B and place it into the bulk. 8. Mix well then label the bottle to include the name of the fining agent in use and the dosage. 9 . Stopper the bottle with cottonwool and return it to the fridge until ready for testing. **(refer to journal for basic information about Kwik clear (Kieselsol/ Gelatine fining) 7. 3- pH testing: 1. Put on gloves and gather all necessary equipment. 2. Thoroughly disinfect the four beakers, the tip of the pH meter and the funnel with sodium percarbonate solution. 3.Run distilled water over the tip of the pH meter until a neutral ph of between 6. 5-7. 5 is reached (this will ensure that the pH meter is configured properly). 4. Carefully pour an adequate sample of wine in a beaker. 5. Slowly dip the tip of the pH meter and leave it in the wine until the pH value on the monitor becomes constant. 6. Record the value and return the sample of wine to its corresponding bottle using a funnel (make sure the sample is returned from the bottle it was taken from as it would be very undesirable to accidently mix the agents. This would corrupt the whole experiment). 7.Repeat steps 2-6 for all the wines. **(refer to journal for basic information regarding Ph-(power of hydrogen) 7. 4- Vinometer testing: 1. Put on gloves and gather all necessary equipment. 2. Make sure to disinfect the four beakers, the vinometer and the funnel with sodium percarbonate solution. 3. The vinometer testing requires handling of the wine with hands therefore the hands must be disinfected prior to testing or if gloves are worn, make sure the gloves are disinfected as well especially if used in prior tests. 4. While holding the vinometer over a beaker, pour wine into it so that the wine covers the entire vinometer. . Apply pressure using the thumb on the vinometer opening as though pushing the wine in (this will ensure any bubble formations are removed). 6. Once confident that no bubbles are evident flip the vinometer upside down allowing the wine to fall into the beaker. 7. Bring the vinometer up to eye level and read the scale after the fluid has settled (the level is sometimes hard to see as it is very thin). 8. Record the value; this is usually in %v/v alcohol. 9. Repeat steps 2-8 for all the wines. **(refer to journal for basic information regarding Vinometer (% alcohol concentration). . 5- Hydrometer testing: 1- Put on gloves and gather all necessary equipment. 2. Wash all four beakers, the hydrometer, the measuring cylinder and the funnel with sodium percarbonate solution. 3. Carefully fill the cylinder to about 80% with a sample of wine. 4. Gently lower the hydrometer into the wine making sure it does not touch the bottom or the side of the cylinder. 5. Record where the surface of the wine contacts the hydrometer. 6. Repeat step 2-5 for each wine ***(Note: The Hydrometer testing was done incorrectly thus giving inaccurate results throughout each trial.This mistake was only noticed after testing was concluded therefore there was no way of repeating the results. All results obtained a hydrometer reading of 1. 030 which indicates there has been a general mistake with the pr ocedure. The group decided not to use the Hydrometer due to this flaw)*** 7. 6- Turbidity testing (with tube): 1. Place gloves on both hands and gather all necessary equipment. 2. Wash the turbidity tube and funnel in the disinfectant sodium percarbonate solution. 3. Carefully pour wine into the turbidity tube by small increments at a time. 4.Look for when the black lines at the bottom of the tube become slightly visible just enough to see the lines. 5. Record the value at which the lines are slightly visible (this is the turbidity in NTU). 6. Repeat steps 2-5 for each wine. **(refer to journal for information about Turbidity) 7. 7 Sediment level (with ruler): 1. Carefully hold the wine bottle against and angle of strong light until the lees is visible (making sure not to disturb the sediment greatly). 2. Use a ruler to measure the sediment level from the bottom of the bottle to the point at which it finishes. . Record the results to the nearest mm. 4. Repeat step 1-3 for each wine (Note: Sediment measurement should be tested first before anything else so that the lees is not disturbed from movement 7. 8 Electric Conductivity (EC meter): 1. Put on gloves and gather all necessary equipment. 2. Thoroughly disinfect the four beakers, the tip of the EC meter and the funnel with sodium percarbonate solution. 3. Run distilled water over the tip of the EC meter until a reading of 0 is obtained (this will ensure that the EC meter is configured properly). 4.Carefully pour an adequate sample of wine in a beaker. 5. Slowly dip the tip of the EC meter and leave it in the wine until the Electrical conductivity value on the monitor becomes constant. 6. Record the value and return the sample of wine to its corresponding bottle using a funnel (make sure the sample is returned from the bottle it was taken from as it would be very undesirable to accidently mix the agents. This would corrupt the whole experiment). 7. Repeat steps 2-6 for all the wines. **(refer to journal for in formation about EC (Electric Conductivity) 7. EC Conversion to TDS using mathematical formula: 1. The formula stipulates that TDS (ppm or mg/L) = F x EC where F is a factor of 0. 6 and EC is the electrical conductivity in Microsiemens per centimetre. 2. The results taken by the EC meter in class are given in millisiemens therefore to covert to microsiemens simply multiply by 1000. 3. Take the number in microsiemens and multiply it by a factor of 0. 6 as stated by the formula. 4. This is the measurement in TDS (ppm). 7. 10 Alcohol Titration method: 1. Place a 10mL aliquot of wine in a 250mL volumetric flask ( using a small pipette). 2.Distilled water is then used to fill the volume up to the 250mL mark. 3. Take a 20mLaliquot from the 250mL solution and place it in a conical flask. 4. Step 3 must be repeated twice so that there are three flasks to use in 3 separate trials. 5. To every flask a 20mL aliquot of 0. 04 Molar Potassium Dichromate is added. 6. 10mL of 40% sulphuric acid is a dded to every flask with the aid of a measuring cylinder and the teacher (the teacher will have to do this step due to the potency of the acid). 7. Each flask should be stoppered loosely and heated in a water bath at 45-50*c. (water bath must not exceed 50*c). . Once 10 minutes have passed, remove the flasks and add 2 g of Potassium Iodine to all flasks. 9. Fill the burette with Thiosulphate solution (0. 1 Molar). 10. Begin the titration, titrating the contents of the flask with the 0. 1M Thiosulphate solution. When the brown colour of the titrated solution becomes green add 1-2mL Starch. The equivalence point is noticed when the solution turns from blue to light green. 11. Record the result of the titres. 7. 11 Alcohol titration calculations: **(Refer to journal for titration calculations) 8. 0- Results and Data Analysis: 8. 1- graph 1 – PH over time:The above graph displays the pH obtained for each wine over the 5 trials conducted. Initially before adding the clearing agent s, the wine was tested to be at pH 4 as indicated at ‘trial 0’. After the clearing agents were added the pH remained at 4 however the Isinglass fined wine increased to pH 4. 3. Standard wine must be kept at a pH range between 3. 2 and 4. 1 therefore anything over 4. 1 raises alarms and action must be taken to lower the pH using acidic substances. Ultimately 1g of Tartaric acid was added to all wines during trial 1 and subsequently resulted in the decrease in pH observed from trial 1-3.Trial 3 was the point at which the pH of all four wines was recorded at a constant 3. 2 indicating that the Tartaric acid was successful at lowering the pH by almost 1 for all four wines. From trial 3-5 the pH of all the wines is seen to fluctuate once again this is due to the fact that the effects of the tartaric acid have ceased therefore the pH system increases and decreases accordingly as it tries to find a new state of equilibrium. This trend can be related to Le Chateliers principle which states that â€Å"If a system at equilibrium is disturbed, then the system adjusts itself so as to minimise the disturbance.At the end of trial 5 all four wines fell between a stable pH range however following the low pH of trial 3, Isinglass fluctuated to pH 3. 7 as seen in trial 5. This raises the possibility that the pH of Isinglass may have continued to raise. 8. 2- Graph 2 – Alcohol %v/v over time The above is the comparison of alcohol content for all the wines over the 5 trials conducted. All wines clearly tend to show a percentage of alcohol between 4-6% throughout the trials with the overall average being 4. 2%. At the end of trial 5, all four wines recorded a stable 4%v/v alcohol however this is unusual considering that wines are typically 7-14%v/v.The 11%v/v recorded for the control at trial 3 is believed to be due to error as there is no justifiable reason for such an instantaneously high fluctuation. It is seen that all wines containing fining agents record ed an alcohol level that was similar to each other; this was ultimately expected as fining agents do not typically affect alcohol level. These readings from the vinometer can ultimately be relied upon as alternative alcohol testing through the more accurate titration method showed that the alcohol level was at approximately 5% which is the most common value presented throughout the vinometer testing. . 3- Graph 3- Sediment level over time Displayed above is the graphical analysis of the sediment level recorded over time for each wine. There is a clear indication that the wine finned with Bentonite produced the most lees followed by the Gelatine/Kieselsol and then the Isinglass which accumulated the least amount of lees out of the three clearing agents. Overall however, the control (wine without fining agent) showed a very limited accumulation of sediment therefore indicating that sedimentation rate is slower without a presence of a clearing agent.Interestingly the Bentonite also rec orded instant sedimentation of 1. 5cm for the first trial which is more than twice as much as that of the Gelatine/Kieselsol and three times more than the Isinglass and control. The control also displayed the slowest rate of accumulation of lees with a 0. 1cm increase occurring once every 2 trials. Some results show a drop in sediment level; this should ultimately be ignored as the measurement of sediment encompasses an uncertainty of (+- 0. 5cm) therefore the recorded drop in sediment may just be an indication of no change. . 4 – Graph 4- Difference in sediment level over time: The above graph has been constructed to aid in the interpretation of the previous (Graph 3). This displays the difference in sediment level for each wine from trial to trial. Ultimately the total increase of sediment for Bentonite over the 5 trials was +1. 9cm (assuming that the –0. 1 is treated as a no increase rather than a decrease). The Kieselsol/Gelatine recorded a total increase of +1. 6c m. Isinglass obtained a total of +0. 8 and the Control showed a +0. 7 total increase over the 5 trial periods. 8. – Graph 5- Turbidity (NTU) over time: The above ‘turbidity over time’ graph ultimately displays the extent at which the wines were cleared. The results obtained for turbidity show the same trend that is seen in the sediment accumulation graph in terms of the fining agent performance. Bentonite was most effective at clearing the wine, bringing the turbidity down from 600 to 250NTU followed by Kieselsol/Gelatine which was successful in a turbidity reduction from 600 to 300 NTU. Isinglass again presents itself as the weakest clearing agent only clearing the wine from 600 to approximately 450NTU.The Control indicated only a slight decrease in turbidity of 50NTU in total. Notice that major reduction in turbidity for all four wines ceases from trial 3 onwards, this trend was also recorded in the sediment graph. Another trend that is seen in this graph and t he sediment accumulation graph alike is that Bentonite again appears to have the greatest initial impact out of all the fining agents. *The lack in results for trial 1 is due to not having the turbidity tube available at that time. 8. 6- Graph 6- Electric Conductivity over time:Electrical conductivity was tested purely because it can give an indication of TDS through a conversion factor. Again what is immediately noticed is that on the 5th trials, Bentonite had the greatest overall drop in EC/TDS. Followed by Kieselsol/Gelatine then Isinglass. The control showed the least overall reduction of EC/TDS and this is a trend seen in the previous Turbidity and Sediment graphs. (Refer to Journal for raw data tables and the conversion from EC to TDS) 9. 0- Discussion: Through the analysis of the results obtained, many justifications can be drawn as to the fining agent that had the greatest effect on clarification.By graphing the primary trends in turbidity and sediment level, the initial hyp othesis was ultimately rendered incorrect to some extent. It was hypothesised that the Kieselsol/Gelatine would have the greatest fining ability due to the agent being composed of both positive and negative charges. This however was not the case when the results were analysed. Ultimately the Bentonite was recorded to have the greatest fining ability followed by the Kieselsol/Gelatine and then the Isinglass which as predicted, presented itself as the weakest of the three fining agents.The Bentonite agent visibly resulted in the most sediment accumulation, recording a total of 1. 8cm of lees and a turbidity reduction of 350NTU in total. Interestingly, Bentonite also exhibited a very fast rate of efficiency with an accumulation of 1. 5cm of sediment in the very first trial (Graph 3). This was more than double the sediment level of Kieselsol/Gelatine and triple the amount recorded for Isinglass. Similar trends in rapid efficiency are seen in (Graph 5) where Bentonite is noticed to reduc e turbidity by half in the very first trial.These superior clearing abilities stem from the complex molecular composition of the substance. Bentonite is comprised of a multitude of small silicate platelets that are separated by a layer of water molecules (Zoecklein, B. 1988). During the initial Bentonite hydration performed before adding it to the wine, these platelets repel each other and subsequently pop apart. As this occurs, the platelets rearrange and immense swelling takes place which results in an enormous surface area (refer to appendix figure 2).It is this enlarged surface area that grants Bentonite the ability to absorb a greater amount of suspended matter. Further evidence shows that there are more molecular properties that can justify the dominant fining capabilities of the Bentonite agent. Foremost, Bentonite is renowned for its high cation exchange capacity (binding ability) (Catarino, S. 2007). Typically there is a tremendously fast reaction time between positively ch arged protein particulates and the negatively charge Bentonite.It is common for three-quarters of proteins to react with Bentonite within the first minute of contact (Zoecklein, B. 1988). Protein contents from an initial 50-100mg/L can be cleared to less than 10mg/L in most circumstances therefore this high clearing capacity is another reason why such elevated amounts of sediment deposits were recorded during testing. Another aspect to consider is the relationship between ethanol concentration and Bentonite. Scientific research has suggested that there is a proportional relationship between ethanol concentration and the efficiency of the Bentonite fining.This is due primarily to the fact that ethanol separates the silicate layers within the structure therefore allowing larger particles to adsorb to the surface (Harberton, J. 2009). Basically out of the three fining agents, Bentonite is the only one that exhibits this relationship with alcohol thus its flocculation ability is advanta ged when placed in an ethanol rich solution such as the wine. What can further be associated with the Bentonite’s vast flocculation ability is that the agent is not exclusively of a negative charge.Interestingly, the molecular platelet edges are comprised of a slight positive charge (AMCOL, 2005) (refer to Appendix figure 4). This gives the Bentonite an additional aptitude to bind to some negatively charged particles therefore providing a wider range of clearing potential. When looking back on the results obtained, the hypothesis was validated to the extent that the wine without a fining agent (the control) showed least efficiency in clarification. As seen in Graph 3 (sediment level over time), the control not only accumulated very small amounts of sediment but also did this at a very slow rate.An increase of 0. 1cm is noticed only once every two trials whereas the fining agents show a substantial increase nearly every single trial. The same goes for the turbidity reduction ( Graph 5) where the control is seen to take approximately three trial periods to attain a decrease of a mere 50NTU. Although the control showed signs of clearing due to gravity, it is substantially slower than that of the fining agents. A scientific principle set out by physicist George Stokes in 1851, aids in the conceptualisation of why the fining agents are more efficient in sedimentation.Stokes’ law states that the rate of sedimentation of a spherical particle is directly proportional to the difference in density of the particle and the liquid, the acceleration due to gravity and the radius of the particle (Stoyanov, P. 1980). By the application of this law, it stands to reason that a fining agent causes swifter sedimentation as it increases the radius of the particles through electrostatic binding and this in turn causes the particles to have a greater density ultimately increasing the rate of clarification It was also initially hypothesised that Isinglass would perform l east efficiently out of the three fining agent.This was confirmed through the data analysis which showed that Isinglass produced three time less sediment than Bentonite and only reduced turbidity by 150NTU unlike Kieselsol/Gelatine which reduced turbidity by 300NTU and Bentonite which resulted in a 350NTU reduction. Isinglass was ultimately not anticipated to have great fining abilities due to its gentle nature which renders it more suitable for wine polishing rather than heavy clearing (Chorniak, J. 2007). According to external scientific sources, the overall fining rate of Isinglass stands at a low 0. 2 – 0. 1g/L-1 therefore adding justification as to the low sediment yields recorded for Isinglass in this chemistry experiment. There is however another biochemical issue that may have attributed to the underperformance of the Isinglass agent. Collagens such as isinglass are typically dependant on temperature for chemical stability. At high temperature most collagens begin to decompose on a molecular scale. Isinglass starts to denature at a relatively low temperature of approximately 10 °C.This denaturing process results in a reduction of molecular weight which consequently weakens the fining ability (Hornsey, I. 2007). Throughout the course of this experiment, the wines tested were exposed to temperature of over 18 °C hence leading to the presumption that this may have contributed to isinglass’ lack in performance. When analysing the data to a greater extent, there was a very crucial trend that was established which may have affected the performance of all the clearing agents. pH is ultimately seen to have an inversely proportion relationship with the binding ability of the fining agents.As pH increases, the strength of the electrostatic attract between the fining agent and particles is subsequently decreased. This principle is extensively evident for all three fining agents tested in this experiment. Notice that after trial 3 (graph 5) the t urbidity no longer shows improvements for both Bentonite and Isinglass and only exhibits a minimal improvement for Kieselsol/Gelatine. This is also notice for the sediment level (graph 3) which shows only very slight increases in sediment accumulation after trial 3.This reduced performance after trial 3 may be due to the fact that the pH of all wines began to fluctuate from trial 3 onwards (refer to graph 1). Overall it is seen that the clearing agents performed best when the pH was reducing during trial 1 and 2 and started to perform poorly when the pH began to fluctuate from trial 3. To comprehend this phenomenon it is important to understand the concept of the Isoelectric point (pl). Basically all proteins or other suspended particles have a certain pH at which the particles carry no net charge.If the pH of a solution is too high or near the isoelectric point, the particulates will not be sufficient in electrostatic attraction because at a high pH, the molecules carry an equal nu mber of positive and negative charges resulting in neutralisation (Zoecklein, B. 1988). This is also true for the fining agents which lose electrostatic charge when there is even a slight increase in pH. Recent studies that tested the net charge of isinglass in different pH medium show that even a small increase of 0. 5 pH resulted in the reduction of approximately half the net charge of the isinglass agent (Ward, I. 000) (refer to appendix figure 3). This evidence adds credibility to the justification that the rise in pH may have indeed contributed to the trend noticed in all the fining agents. Alternatively however there is the possibility that the fining agents simply reached their capacity and began decreasing in efficiency after trial 3 indicating that more fining must be added. Overall through the in-depth interpretation of the data; the performance of the fining agents can be justified and links can be draws as to the agent that performed the best and worst (the Bentonite and Isinglass respectively).However although this experiment was successful in giving reasonably good results it is undoubtabley encompassed by multitudinous amounts of human error and uncertainty that may render it flawed to some extent. The major flaw to this experiment is that sediment was not siphoned after every trial. The group initially chose not to siphon the lees so that results could be easily recorded. However what was not realised is that every time the wine was poured out for testing, the deposit of sediment was resuspended into the wine therefore may have resulted in highly inaccurate results especially for turbidity.Another associated human error is that members from the group at some stages touched the wine with bare hands that were not disinfected especially during Vinometer testing. This holds a great risk that the wine may have become contaminated thus predisposed to bacterial manifestation which would render the experiment invalid. Gloves were only used after the 2n d trial period once the group noticed the risk of contamination. Other possible sources of contamination include the fact that some equipment were not washed with sodium metabisulphite before making contact with the wine, this again posses high risk of bacterial growth.At one stage there was speculation whether the wine had indeed contracted a bacterial strain. This is due to the hazy/cloudy appearance of the wine despite the extensive fining that was performed. Although turbidity was slightly reduced by the fining agent, the wine still seemed awfully turbid. This could be a sign of a bacterial colony which causes a liquid to appear murky and is ultimately untreatable by the fining process. When expert opinion was consulted about the wine, it was concluded that the turbid appearance was not due to bacteria.If the wine had been infected, it would have had a very ‘off’ taste which was not indicated during the weekly wine tasting. What must be noted is that because the win e in this group was created with oranges, it will never have a very clear appearance due to the thickness and dark colouration of the orange contents. Common wines made from grapes are naturally very clear due to the transparency of the grape juice by nature. It was therefore presumed that the turbid look of the wine was due to the natural composition of the oranges it was made from.If this experiment was to be performed again, many improvements must be made to ensure more accurate and valid results. It is recommended that more emphasis must be placed into contamination control and management during the winemaking and wine testing period. This will ensure no foreign material spoil the validity of the experiment. Also there was major uncertainty in the equipment used. Firstly the ruler used to measure sediment carries a +/- 0. 5cm uncertainty which is major especially when measuring something so small such as sedimentation deposit.Maybe a more accurate measuring tool with a smaller s cale can be used in the future for the lees measurement. Furthermore all testing including pH, Turbidity, Vinometer etc were only done once every trial period whereas it is advisable to always test a sample 3 times in a row to ensure consistency in the results. This was not done in this experiment as time restraints did not allow for repeated testing. If these simple improvements can be implemented for future testing, the results will be more accurate which will in turn provide more credibility to the findings. 10- Conclusion:The process of wine making and testing was a long and arduous task that involved many procedures. Although there were some minor flaws involved with the testing, the experiment was considered an overall success. The aim from the start was to see which flocculation agent would have the greatest effect on wine clarification and through extensive testing the results clearly indicated the superior fining agent. The Bentonite was undoubtabley the most powerful flocc ulation chemical and resulted in the greatest reduction in turbidity and also the greatest increase in sedimentation.The trends and patterns in the data were evaluated and scientific justifications were made as to why each fining agent performed to the extent that was witnessed. Ultimately relationships between variables were established as explanations that coincide with the performance of the fining agents. Wine pH, alcohol level and temperature are concluded to have a drastic effect on the flocculation abilities of the fining agents. These variables must be monitored and adjusted accordingly as the efficiency of the clearing agents are found to be very dependent upon their values.For future reference, pH is seen to affect the electrostatic bonding abilities of the substances, alcohol levels have a proportional relationship to the fining abilities of Bentonite and temperature (either to low or to high) affects the efficiency of the chemical fining process especially that of the Is inglass. With this in mind it can be concluded that the fining agents did help in the clarification of the wine however were affected by many variables that must be taken into account if this experiment was to be performed in future. By Mario Mitov 11- Appendix: {FIGURE 1}.Below: Diagram of the electrostatic flocculation process exhibited by most fining agents. {FIGURE 2}, Below: A depiction of the Bentonite surface area expansion that is initiated during the hydration stage. This is one of the main reasons why Bentonite is such a powerful flocculation agent. From left to right; Water molecules between the silicate layers, Layers then pop apart during hydration, the platelets rearrange and swelling takes place, once rearrangement has occurred the surface area is greater than before hydration. Diagram sourced from (Zoecklein, B. 1988) FIGURE 3} Below: Scientific studies conducted for isinglass that shows an increase in pH results in electric charge depletion thus weakening the fining agent. {FIGURE 4}, Below: A depiction of the Bentonite molecular structure, Notice that the edges are +ve (positively charged) and the inner area is predominantly of a negative charge (-ve). Because Bentonite has slightly positive charged edges it is advantaged in its fining ability. Image sourced from http://www. amcoldetergents. com/Resources/How%20Bentonite%20Softens%20Through%20the%20Wash. pdf 12- References: Books (alphabetical order): Biers,W.The Archaeology Of Greece. 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