Computers Highly Contribute Of Dentistry Advancement

COMPUTERS highly CONTRIBUTE OF DENTISTRY ADVANCEMENT 1Mogahid Abdelrahman Yousif Dean Faculty of Dentistry Uof G 2Murtada Khalafallah Elbashir U of G Dean Faculty of Computer and Mathematical SciencesØ © Abstract Computer is basically an electronic device which can convert data into information at a very high speed and in a reliable and accurate way. It has a large and perfect memory that enables it to handle large volumes of data and analyze it to come up with logical decisions. It has been applied in various medical fields. In this paper we discuss its application in preventive and curative dentistry, where it becomes a powerful tool in educational dentistry, surgery, radiology, etc. Introduction The computer as a tool has become a necessity in dental clinics. It is no longer used as a luxury, but as a powerful tool that is available for a variety of applications related to education and professional development. Computers play tremendous role in different educational and clinical dental displenses as surgery ,periodontolyg, conservative dentistry, lazer, endodontic ,orthodontic, prosthodontic , radiology, implantology ,fronsic and community dentistry. There are many computer programs that were designed to help in accomplishing dental work. The first computer program on a large scale was started in 1981 by SCICON and was commissioned by British Dental Association. Since then computers are being used in community dentistry programs and other fields of dentistry andShow MoreRelatedSocial Impact of Technology4403 Words   |  18 Pagesproductive processes. Technology is developed in response to a human want or need. The acceptance of technology is determined by how well it s atisfies people’s needs and how the technology impacts on health, wellbeing and lifestyle. Technological advancement could be: * Tools, gadgets, hardware; for example:- mobile phones, MP3 players, webcams; * Technological systems: for example:- robotics, satellites, communication; * Routines,procedures or techniques; for example:- medical, surveillanceRead MoreThe Impact of Mining4891 Words   |  20 Pages3900 metres deep. The hard rock mining method is accompanied by chemical benefaction where chemicals such as activated carbon or say cyanide is added to rough ore and then processed, sometimes by water or heat, agitation and electro-winning. The advancement of the modern gold benefaction can produce gold of a staggering 99.9999% purity. Over fifty per cent of the world’s gold reserves are found in South Africa. The world’s largest gold reef deposit is found in Witwatersrand. By 2007, the gold miningRead MoreProceedings Of The Second Conference On Human Capital Development9482 Words   |  38 Pagesobjective. Introduction It is my pleasure to be invited to participate and by extension asked to deliver a keynote address at the opening ceremony of the workshop on the theme: Self Development for Organizational Effectiveness. I want to say that I feel highly honoured by this recognition. On behalf of management, staff and students of the College, I welcome the organizers, resource persons and all the participants to this workshop and indeed the College. Let me quickly commend the organizers for theirRead More2006 Arroyo Case Study31910 Words   |  128 Pageshealth education, and reception. AF’s information technology is managed by Desert Data Solutions (DDS). It includes support for an electronic health record (EHR) integrated with the billing and scheduling system. All staff members have access to computers and the wide array of data and information on the AF intranet. The innovative Care Connection Kiosk (CCK) is a portable, multi-use unit developed in collaboration with CactusCom, a telecommunications partner. P.1a(5) Legal and regulatory environment:Read More2006 Arroyo Case Study31910 Words   |  128 Pageshealth education, and reception. AF’s information technology is managed by Desert Data Solutions (DDS). It includes support for an electronic health record (EHR) integrated with the billing and scheduling system. All staff members have access to computers and the wide array of data and information on the AF intranet. The innovative Care Connection Kiosk (CCK) is a portable, multi-use unit developed in collaboration with CactusCom, a telecommunications partner. P.1a(5) Legal and regulatory environment:Read MoreUnited Arab of Emirates Country Notebook18844 Words   |  76 Pageseducation. In 2007/2008 United Nations Development program report the UAE ranked 29th among 177 countries in the Gender Empowerment Measures to promote gender equality and women empowerment, the best rating received in the Arab world. Despite this advancement in the female role, still the Emirates society is Patriarchy or male dominant society as Men continue to be employed in high state administration and women don’t play significant role in politics or religious life as these areas are considered maleRead MoreUnited Arab of Emirates Country Notebook18844 Words   |  76 Pageseducation. In 2007/2008 United Nations Development program report the UAE ranked 29th among 177 countries in the Gender Empowerment Measures to promote gender equality and women empowerment, the best rating received in the Arab world. Despite this advancement in the female role, still the Emirates society is Patriarchy or male dominant society as Men continue to be employed in high state administration and women don’t play significant role in politics or religious life as these areas are considered maleRead MoreStephen P. Robbins Timothy A. Judge (2011) Organizational Behaviour 15th Edition New Jersey: Prentice Hall393164 Words   |  1573 PagesManagement Functions 6 †¢ Management Roles 6 †¢ Management Skills 8 †¢ Effective versus Successful Managerial Activities 8 †¢ A Review of the Manager’s Job 9 Enter Organizational Behavior 10 Complementing Intuition with Systematic Study 11 Disciplines That Contribute to the OB Field 13 Psychology 14 †¢ Social Psychology 14 †¢ Sociology 14 †¢ Anthropology 14 There Are Few Absolutes in OB 14 Challenges and Opportunities for OB 15 Responding to Economic Pressures 15 †¢ Responding to Globalization 16 †¢ Managing WorkforceRead Morepreschool Essay46149 Words   |  1 85 Pagesthem enter kindergarten ready for school. All too often, children are already lagging behind their classmates, and this circumstance can impede their continued learning and development long past kindergarten. High-quality preschool teaching contributes to children’s longrange social and academic success, as well as their ability to express themselves creatively through the arts, their capacity to engage in physically challenging activities, and their development of lifelong health habits. ChildrenRead MoreExploring Corporate Strategy - Case164366 Words   |  658 PagesThis case explores some of the trends affecting the ethical (research-based) sector of the industry and invites readers to prepare their own analysis. Industry evolution As described in Box 1, the pharmaceutical industry is characterised by a highly risky and lengthy RD process, intense competition for intellectual property, stringent government regulation and powerful purchaser pressures. How has this unusual picture come about? The origins of the modern pharmaceutical industry can be traced

Modest Proposal Analysis Essay - 1122 Words

â€Å"A Modest Proposal† is an essay written by Jonathan Swift as a reaction to the social problem faced by the Irish in 1720’s. Swift’s daring dark and social satire and dark irony to make a statement in this literary work triggered the minds of the rich Englishmen and Irish landlords to question their actions towards the poor Irish people. By giving a drop of horror and barbarity sarcastically, Swift was able to attack the practices of those who were seated in power and exploited the rights of the impoverished. In â€Å"A Modest Proposal†, Jonathan Swift attacks the English and Irish aristocracy through the use of satire, metaphor, and irony. By equipping his literary work with sarcasm, Swift was able to create a whole new sense of scope that†¦show more content†¦Swift’s usage of satire deeply qualifies the aristocracy to the level of being a cannibal that is molded in his need not to be taken literally of a proposal. The use of metaphor in this particular piece further Swifts initiation of plan to attack the aristocrats as it is written. The barbarity that Swift alludes in the overall surface reading that can be seen through in his proposal presents the state that the aristocrats had chose to fall into for their actions were deeply damned. When Swift mentions how he â€Å"grant this food will be somewhat dear, and therefore very proper for landlords,† he is already making a comparison of the landlords to the cannibals for they had already done the most horrifying exploitation to the Irish peasants. Swift is putting the landlords into a category that symbolize an outward manifestation of cannibalism because of the cruelty that tropes their actions. Swifts synonymous presentation of this picture in his proposal criticize the most obvious act of cruelty that is perversive and too terrifying to be committed for those who are in power. The assailing step that Swift further on had demonstrate t he defamation that is triggered by his pity and deep contempt in which he continuously develop as an image that is perhaps considered most morally depraved with their own practices itself. This then turn into a reprimand that solely lies behind a figure of speech that was admonished by theShow MoreRelatedAnalysis on a Modest Proposal1421 Words   |  6 PagesEnglish Commentary – Digression â€Å" A modest proposal† by Jonathan Swift is a rhetoric piece that satirizes the dismal political, social and economic conditions in 18th century Ireland. As a solution, the preposterous proposal suggests that the Irish eat their own babies; as it is logically viable, and economically profitable: a condition adhering to the rational mentality of the age of reason. Swift develops his argument on two levels: A seemingly intellectual persona, caricaturized on a stereotypicalRead MoreA Modest Proposal Analysis Essay1465 Words   |  6 PagesA Modest Proposal Literary Analysis By J--- ----------- J--- ----------- Mr. H----- Period 6 2 May 2011 Jonathan Swift’s Use of Satire and Exaggeration Satire is a form of literature in which an author tries to demonstrate his or her point of view by ridiculing. The author uses heavy irony and sarcasm in order to criticize a social issue. A perfect example of a work of satire is Jonathan Swift’s A Modest Proposal. In this satirical essay, Jonathan Swift attacks on the issue of theRead MoreAnalysis of A Modest Proposal873 Words   |  4 Pages Jonathan Swift, the writer of the satirical essay A Modest Proposal, grew up and lived in Ireland during times of famine and economic struggles (Conditions). Growing up with a single mother and no father, Swift knew what hard times and struggles were like (Jonathan Swift: Biography). His essay proposes an easy solution to the economic problems going on in Ireland for both the wealthy ruling classes and the poorer classes, although his intentions and the meaning behind his words are not what wouldRead MoreRhetorical Analysis Of A Modest Proposal 1863 Words   |  8 PagesRhetorical An alysis: A Modest Proposal In â€Å"A Modest Proposal,† Jonathan Swift provides a satirical exploration of the attitudes of the wealthy people towards the underprivileged and poor children in the society. Laymen and intellectuals during the late seventeenth century distributed political pamphlets containing different ideas throughout Ireland. In his essay, Swift utilizes some of the overlooked pamphlets during this period and develops an ironic proposal. As a colony of the British, IrelandRead MoreAnalysis Of The Article A Modest Proposal 1482 Words   |  6 Pages The article â€Å"A Modest Proposal† is a proposal made by a man named Jonathan Swift who is also known for Gulliver’s Travels which is another well spoken essay of satire. When the people of Dublin are suffering from poverty and overpopulation, Swift writes up a satirical hyperbole that mocks the heartless Irish attitudes towards the poor. The bottleneck effect of people was so dreadful that all the Catholic families of Dublin were not able to support their own children. Due to these conditions SwiftRead MoreEssay on Analysis of A Modest Proposal by Jonathan Swift1081 Words   |  5 PagesAnalysis of A Modest Proposal by Jonathan Swift In his biting political satire called ?A Modest Proposal,? Jonathan Swift seeks to create empathy for the poor through his ironic portrayal of the children of Irish beggars as commodities that can be regulated and even eaten. He is able to poke fun at the dehumanization of the multitudes of poor people in Ireland by ironically commenting on what he sees as an extension of the current situation. Swift?s essay seeks to comment on the terribleRead MoreRhetorical Analysis of a Modest Proposal Essay1216 Words   |  5 PagesAll the Wrong Things Swift’s â€Å"A Modest Proposal† written in 1729 was his proposal â€Å"for preventing the children of poor people in Ireland, from being a burden on their parents or country, and for making them beneficial to he publick† (Swift, Title). This proposal included the selling, skinning and buying of babies at the age of one. This proposal that he has come up with is a very inhuman and controversial one when it comes to being socially acceptable. Swift begins his essay by describingRead MoreRhetorical Analysis Of Swift s A Modest Proposal1076 Words   |  5 Pages Mansoon Acharya Kayla Schreiber H1003 October 10, 2017 Rhetorical Analysis on Swift’s A Modest Proposal A Modest Proposal is a sarcastic humored essay that examines the attitude of the rich towards the poor starving children in their society. Swift uses many rhetorical devices. Swift uses logical metaphors, repetition, and humor, satire and sarcasm tone to point out the negative attitudes. He starts by blaming the mothers of the children by telling them they should work hard and work honestly insteadRead MoreAnalysis Of Swift s A Modest Proposal 1546 Words   |  7 Pagesvaluable rhetorical tools to expose faults and make a point (New Oxford American Dictionary). Both Jonathan Swift and William Blake confront social systems of oppression in their literary careers, most notably with A Modest Proposal and Songs of Innocence respectively. Swift’s A Modest Proposal is an address to the wealthy English and appeal to the consumerism that drives economic exploitation that causes inequity and poverty. Due to the tense political climate and potential ramifications of his criticismRead MoreAn Analysis Of Modest Proposal By Jonathan Swift1777 Words   |  8 Pages 2015 The Irony in Cannibalism Humor in serious topics can bring the light side of things and can also bring more attention than just talking about them. In â€Å"Modest Proposal† written by Jonathan Swift, he uses humor to talk about the famine that was happening back then and proposes an economical idea. By using the word â€Å"Proposal† in his title, he gives a reasonably suggestion to aid the Irish, Swift mentions them one by one the many benefits and counters the objections many may have, uses rhetorical

Slavery DBQ free essay sample

At the birth of the United States, around 1775 to 1830, Americans took up a new identity. This identity on its face was considered to be liberating and largely democratic, to the point where the American constitution even states that everyman deserves life, liberty, and the pursuit of happiness. Although this is how the fathers of America wanted their country to be portrayed. The reality was, not everyone was allowed his or her constitutional rights.Albeit many groups were deprived of these rights, the cultural/racial group at the riverfront was the African slaves and their freed peers, who still struggled to obtain these rights once becoming free. Despite these struggles many slaves obtained freedom through petitions and letters to their owners (Docs B) and some earned their freedom by fighting in wars (Doc A). Due to economic reasons however, many slaves were trapped by slavery (Doc C).These slaves and freedmen that fall under this category responded in both positive ways, such as peaceful petitions (Doc J), and negative ways, such as rebellions (Doc G J). We will write a custom essay sample on Slavery DBQ or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page As previously stated the freed African Americans, and slaves of the late 8th century and early 1 9th century seemed to be omitted from the constitutional rights of America, even being referred to as other persons in the constitution. Despite this fact many slave still wanted to become free, which forced the number of freed African Americans to increase.This was best indicated in (Doc. A), which infers that many slaves, about 40,000 to be exact, responded to the British in search of freedom, in turn increasing the number of freed African Americans. This trend is also portrayed in (Doc. B) shows one of the peaceful ways freed African Americans found to raise wariness of the discrimination brought upon them, through written petitions. On the other hand (Doc. H) shows how the non-freed slaves used written petitions to work towards the emancipation of slavery. (Doc.F) also supports this idea because it shows how African Americans responded to their desire to become free with the use of letters to their slaveholders to allow them to buy their freedom, if they could save up the money to do so. Even though the numbers of freed slaves increased the number of enslaved Africans also increased, this was best portrayed in the maps of (Doc. C). With his document, and some additional knowledge you are able to infer not only that cotton production increased, but also that the number of freed slave increased in the North between 1790 and 1830.There was an increase in the production of cotton because America increases in size and population because of the Louisiana Purchase, which cause a greater demand. This increase in demand spurred great ideas, such as the cotton gin, by great men such as, Eli Whitney. The invention of the cotton gin is significant, because this invention would have sped up the process Of removing seeds from cotton. This invention would have required an increase in raw material, and to produce these slaveholders would need more slaves.Even with these trends of increasing freedom, both the slaves and their freed peers faced challenges and responded in deferent ways depending on their situations. Doc. (G J) best portrays the negative responses of the African slaves when faced with discrimination. (Doc. G) shows the constant longing for freedom expressed by the slaves. This longing overwhelmed many of the slaves, which caused many slaves to respond by following the lead of Liverwurst Outstations slave revolt n Haiti and biblical inspirations, to begin revolts of there own in the states.Challenges that were faced by the freed African Americans were as equally harsh. These so-called freed African Americans were discriminated against, taxed without representation and were deprived of property rights. (Doc. J) on the other hand shows both a positive and potentially negative response by African Americans. This document shows that freed slaves are willing to be cordial, but also states that some African Americans were willing to respond with violence, because of the account by David Walker, to gain the rights they let that they deserve.Despite the Myriad of challenges that blacks had to endure, there were many people in America, both black and white that stepped up and helped both the enslaved Africans and the freed African Americans. This is shown in (Doc. E), which portrays the response and admiration of some African Americans and how they were able to look past the color of the white, and see someone who could help him or her politically. Which was successful in the sense that laws were past by white politicians such as the Missouri Compromise, which worked towards getting rid of slavery.

Music Therapy Essays - Health, Music Therapy, Psychotherapy, Therapy

Music Therapy Music therapy is the prescribed use of music and musical interventions in order to restore, maintain, and improve emotional, physical, physiological, and spiritual health and well-being (Lindberg). So one finds the selections under the New Age/Relaxation section of the record store about as relaxing as water torture? Just because one's taste runs more to Sousa than to soothing doesn't mean one can't reap all these relaxation benefits music is supposed to have. Music therapy works primarily by changing moods, which alters brain chemistry. This can have many effects--making concentration easier, easing anxiety and fostering patience(Hendrick-16). "Music," as the old saying goes, "has charms to soothe the savage beast." It can improve a person's psychological, cognitive, and social functioning--especially when it has familiar lyrics that evoke pleasant memories and a strong , repetitive beat that makes it easy to follow along (Sacks). "(Rhythm) is there in the cycles of the seasons, in the migrations of the birds and animals, in the fruiting and withering of plants, and in the birth, maturation, and death of ourselves."--Mickey Hart of Grateful Dead "(Music Therapy) can make the difference between withdrawal and awareness, between isolation and interaction, between chronic pain and comfort, between demoralization and dignity."--Barbara Crowe (Quotes About...) "It lifts us from our frozen mental habits and makes our minds move in ways they ordinarily cannot...when the sound stops, we fall back into our mental wheelchairs."-- Robert Jourdain (McDonnel-C05) Music Therapy benefits many types of people, such as the mentally ill, abused, terminally ill, developmental learning disabled, and academic learning disabled. The goals of music therapy include improving self-esteem, improving social interactions with peers, increasing participation, developing coping skills, reducing stress anxiety, creating a non-abusive lifestyle, decreasing fear, decreasing pain, and behavior management, just to name a few (Lindberg). "Almost all children respond to music. Music is an open-sesame and if you can use it carefully and appropriately, you can reach into that child's potential for development." --Dr. Clive Robbins (Quotes About..) Preliminary findings of a nearly completed study at Beth Israel to be published in 1998, show that music performs as well as or sometimes better than sedation in calming children before tests such as EEG's and CAT scans. Music has a lot of universality. You bypass so many barriers to communication, and it seems to reach more of the child than anything else." --Clive Robbins (McDonnel-C05) "In people who are depressed, the ratio of pleasant to unpleasant events gets out of balance." (Munson;Walsh42) It's likely that both the music and the human contact increased the number of pleasant events for people involved. "With music, it's not just that these pleasant events are happening to you. You are in some ways taking control to make the pleasant events happen." --Larry Thompson,PhD (Munson;Walsh-42) If anxiety is involved in depression, as it often is, the right kind of music may help someone de-stress. This doesn't necessarily mean you can blast Pearl Jam and call it therapy, or that you can write off your CD collection as a medical expense, but it might reinforce your idea that Glenn Miller means more than ocean sounds to your mental state (Munson;Walsh-42). Music can relieve stress whether the stress comes from the work-place or something more serious like a major illness (Luque). Ancient cultures used sound to affect the chemical balance of the brain. The positive statements were added to remove the feelings of helplessness from patients and return them to a sense of control. "(It might) not neccesarily cure them, but it can change things. It might not be quantity for extending life, but it is quality in enjoying life more. The brain is impacted by what it perceives. What we are trying to do is change the negative to a positive, and it all translates into physiology. It's more than just sounding mystical, a fantasy. There's medical reality. There is real potential for healing in music, imagery, and positive affirmations."--Dr. Lee S. Berk (Luque) It's hard for many mental patients to put their frustrations into words, but music therapy lets them communicate their feelings freely through the expression of enjoyment of music (Lindberg, B.). The music helps underscore the message (Hendrick-16). The order, harmony, and beauty of music seizes our imaginations and emotions and contrasts with the chaos of everyday life. "While physical movement is choked with the starts and stops and stumbles, music establishes a continuous flow, and does it in perfect proportions." --Robert Jourdain (McDonnell). "Patients can benefit from using music therapy as an active, creative, expression of their personality." --Rachel McCaffrey (Lindberg). "Music is an excellent therapy because is

buy custom Treatment for Tinea Versicolor essay

buy custom Treatment for Tinea Versicolor essay Tinae versicolor is a relapsing fungal skin disease caused by the Malessezia furfur. It affects the adolescents mostly with a high prevalence rate in the young g adults than the elderly. It is characterized by small patches in the skin around the chin chest and neck. The spots can change color to lighter or darker relative to the patient. The fungal that causes tinae versicolor is already a common organism in the skin surface of normal adults and it thrives in the humid environment. The infection is however not contagious. The infection is said to opportunistic and its occurrence is triggered by hormonal or immune system of the individual patient other than the external factors.Treatment Treatment of the tinea versicolor is more dependent on the color of the patches on the skin of patients. Although the lighter patches take averagely long period of time to completely heal but they dont leave any permanents marks on the skin .the darker spots get removed slightly faster. Although there are several options for treatment of the infection but the first one to be opted for is the application of topical cream on the affected skin area, or on the patches. The topical solutions in the cream contain antifungal agents applied directly to the patches of the infected skin area. The most popular creams that have been tested and their efficiency found to be working include: terbinafine, ketoconazole also called selsum blue, clotrimoxazole and miconazole.these agents take up to weeks to cure the patches. In cases where the area to be applied is too big the medical doctor prefer administering the intra venous injection of the anti-fungal element into the blood system. Terbanifine is treatment of choice based on the fact that clinical trials on the fungal elements on the hair of cats and its distribution in the plasma and hair where it has proved efficiency(Kresken, 2002). The reliability and productivity of the drug has proved the drug to effective and it has a low detection dose. Buy custom Treatment for Tinea Versicolor essay

Sample Standard Deviation Example Problem

Sample Standard Deviation Example Problem This is a simple example of how to calculate sample variance and sample standard deviation. First, lets review the steps for calculating the sample standard deviation: Calculate the mean (simple average of the numbers).For each number: subtract the mean. Square the result.Add up all of the squared results.Divide this sum by one less than the number of data points (N - 1). This gives you the sample variance.Take the square root of this value to obtain the sample standard deviation. Example Problem You grow 20 crystals from a solution and measure the length of each crystal in millimeters. Here is your data: 9, 2, 5, 4, 12, 7, 8, 11, 9, 3, 7, 4, 12, 5, 4, 10, 9, 6, 9, 4 Calculate the sample standard deviation of the length of the crystals. Calculate the mean of the data. Add up all the numbers and divide by the total number of data points.(925412781193741254109694) / 20 140/20 7Subtract the mean from each data point (or the other way around, if you prefer... you will be squaring this number, so it does not matter if it is positive or negative).(9 - 7)2 (2)2 4(2 - 7)2 (-5)2 25(5 - 7)2 (-2)2 4(4 - 7)2 (-3)2 9(12 - 7)2 (5)2 25(7 - 7)2 (0)2 0(8 - 7)2 (1)2 1(11 - 7)2 (4)22 16(9 - 7)2 (2)2 4(3 - 7)2 (-4)22 16(7 - 7)2 (0)2 0(4 - 7)2 (-3)2 9(12 - 7)2 (5)2 25(5 - 7)2 (-2)2 4(4 - 7)2 (-3)2 9(10 - 7)2 (3)2 9(9 - 7)2 (2)2 4(6 - 7)2 (-1)2 1(9 - 7)2 (2)2 4(4 - 7)2 (-3)22 9Calculate the mean of the squared differences.(4254925011641609254994149) / 19 178/19 9.368This value is the sample variance. The sample variance is 9.368The population standard deviation is the square root of the variance. Use a calculator to obtain this number.(9.368)1/2 3.061The population standard deviation is 3.061 Compare this with the variance and population standard deviation for the same data.

Organisational Culture of Google and How It Impacts Its Operations Essay

Organisational Culture of Google and How It Impacts Its Operations - Essay Example The researcher states that employee performance is enhanced by the existence of an effective work environment as illustrated by the case of Google. Google is an American based company that specializes in offering communication technology such as internet services. Since its inception, the company has been guided in its operations by valuing the needs and interests of the employees. The major strength of the organization, which can be attributed to its culture, lies in its ability to motivate the employees, which has contributed to its productivity. Employees are encouraged to be innovative, and they are rewarded for their ideas. An analysis of the case study, as well as the video footage, shows that Google is regarded as the best place to work in America as the employees are motivated and their needs and interests are satisfied. Motivation is seen as the key aspect of the effectiveness of the organization in its performance since the employees share the same goals with the organizati on. For instance, mistakes made by the employees do not warrantee a punishment, but they are treated as an effective tool for learning. According to Stahl & Mendenhall, culture is believed to shape the operations of the organization in various ways. It contributes to innovation and success, which allows the managers to be able to cope with problems related to adoption as well as integration. Organisational culture at Google is considered to be very effective given that it has recently been named the best company for employees by Fortune Magazine. The core values of the organization’s culture are intensely held and shared.

Content Analysis (cartoon) Essay Example | Topics and Well Written Essays - 500 words

Content Analysis (cartoon) - Essay Example To summarize, 1 scene of verbal aggression by non-adult character will be viewed by audience every 10 minutes. The results also show that there is no significant difference in the number of aggressive scenes depicted by non-adult versus adult characters, except in verbal aggression. These three cartoons’ stories frequently revolve around family issues, with one or more non-adult characters, like Bart in The Simpson, Stewie in Family Guy, and Stan in South Park. Despite producers’ assertion that these shows are for adults, they attract children during prime time viewing hours, due to young age of characters, family-based story lines and animation. As my sample size s relatively small, I cannot conclude that other prime-time cartoons contain similar levels of aggressive scenes, as in the sample. However, for further research, I will view as many samples as possible and extend my research to include Prime Time Drama, to determine whether a specific genre contains more scenes of aggression than

Fast food restaurant Essay Example for Free

Fast food restaurant Essay All such food is categorized as fast food which can be prepared and served quickly. Restaurants and kiosks provide fast food with precooked or preheated ingredients and usually served at a packaged form (Pollan, 2009). In the beginning, American hamburger and fries was considered as the traditional fast food but now the field has been widely diversified and food like pizzas, fish and chips, burgers from McDonalds and Kentucky Fried Chicken etc. are all considered fast food. Fast food market has shown an enormous and steady growth. In 2006 alone the market has reached to $102. 4 billion with an annual growth rate of 4. 8% (Adams, 2007). Fast food chains like McDonalds operate in more than 126 countries in six continents having more than 31,000 restaurants globally (Arndt, 2007). Burger King, another worldwide fast food chain, has operations in more than 65 countries of the world; KFC restaurants located over 25 countries, Subways is present in 90 countries with total 39,129 restaurants and so and so forth (Buthrie, Lin Frazao, 2002). However, according to most of researches, fast food is not at all fit for health and can cause serious problems. According to Marion Nestle, Chair of New York University’s Department of Nutrition, Food Studies, and Public Health, â€Å"the increased calories in American diets come from eating more food in general, but especially more of foods high in fat (meat, dairy, fried foods, grain dishes with added fat), sugar (soft drinks, juice drinks, desserts), and salt (snack foods)† (Nestle, 2002; p. 10). This report discusses some positive as well as negative points of taking fast food. Reasons for popularity Before delving into the positive and negative aspects of fast food, it seems appropriate if we discuss the reasons of fast food popularity. The question is what compels the Americans to eat such poorly balanced food? The answer of the question is not simple and involves many factors. First of all, every culture has its own values, philosophies, and the way to react to the things occurring in their lives. These reactions depend upon the culture they belong too. In present family structure and busy life it has been observed that the increasing communication deficit between parents and children has created a gulf between parents and children. This changed life style, especially in low-income and single-parent families, has compelled the children to take unhealthy and junk food more often than required (Ritzer, 2000). Advertising also played a major role in increasing the fast food popularity in America. According to National Cancer Institute, â€Å"Commercial advertisers have learned that a consistent and prominent presence in the marketplace is key to achieving and holding market share† (National Cancer Institute, 2000). Statistics revealed that in 2004 the total expenditure of different food items including fast food restaurants was approximately $11. 26 billion. Fast food advertisers target ethnic minorities directly through their own media outlets and programs. Food items which are advertised for ethnic minorities are usually unbalanced and unhealthy as compared to the food advertised for general audience (Reyes, 2005). Research conducted in 2005 depicted that more than 52 percent of food items advertisement published in Hispanic fashion and social magazines were advertised unhealthy and unbalanced food as compared to 29 percent such advertisements published in general magazines (Duerksen et.al. , 2005). Fast food items advertising usually target children in order to create and establish brand loyalty at an early age (Wiecha et al. , 2006). Among the six brands which have enjoyed very strong recognition in children, four are related to food, i. e. Cheerios, McDonald’s, Pop-Tarts, and Coke (Comiteau, 2003). These companies relied on the fact that the children would emotionally connected to these companies even in their adulthood (Comiteau, 2003). Nevertheless, recent research shows that consumers prefer to buy fast food from supermarkets. Because they have the perception that supermarkets provide healthier food options ( Advertising and marketing very significantly influence the buying behavior of people and the notion cannot be rejected in totality that frequent use of this unhealthy food is a major cause of increasing obesity. According to a study, television advertisements and television viewing is directly associated with popularity of junk food (Bowman et al. , 2004). Advantages of using fast food The basic and most obvious advantage of fast food is its cost and speed. Fast food is very easy and quick to prepare and serve. As discussed above, the number of single parent household is continuously increasing in United States. Such single parents not only have to work to earn a respectable living but also have to prepare food for the family. For such persons fast food is an easy and cost effective solution. Fast food not only prepared at home easily but can also be ordered from fast food restaurants which usually have special offers and deals available to make it cheaper or more cost effective. Fast food comprises and enjoys the biggest chunk of food industry. It has, in United States alone, sale of $120 billion with the help of more than 200,000 restaurants. Fast food industry has been very successful in term of operation expansion by utilizing international franchising. The administration of different fast food companies have learned by the passage of time how to make the most of the sales potential of a fast food franchise by practically adopting an idea by giving it a functional methodology. This is one main cause why fast food franchises have been a symbol of success among the contemporary food businesses. Fast food industry gives minimal wages and financial benefits to their workers (McDonald’s Australia); nevertheless, it provides jobs to approximately 3. 5 million people.

Abortion Policy Essay -- Rights Birth Pregnancy Papers

Abortion Policy Abortion is one of about six major issues that the public considers when voting (Witwer). It is a complex issue that has been passionately debated for centuries. The various methods used to carry out the procedure range from disassembling the fetus and crushing the skull in order to suck it all out of the woman’s womb to the procedure called RU-486, that gives the woman a pill to prevent her body from giving the fetus the nutrients to stay alive. Also, some consider certain forms of birth control, Norplant, IUD, and emergency contraceptives to be abortions as well. Many people argue about when in the pregnancy abortions should be allowed, if there should be an age limit, if abortion should be allowed only in certain circumstances, if states should decide the legality of it, and if only certain procedures should be allowed. However, the key issue is: should abortion be totally legalized, totally banned, or remain the way it is? Numerous people have a stake in this issue. The issue of abortion affects every woman worldwide as well as men who find themselves involved in a situation related to abortion, and/or men who choose to concern themselves with such an ever-growing issue (Wlezien). Also, this issue affects the fetuses aborted, or permitted to live. There are generally two opposing sides to the issue where most people find themselves: the pro-life side and the pro-choice side. While it is true that men may find themselves involved in a situation related to abortion, the debate over it still remains predominantly female (Wlezien). Surveys, facts, and figures have indicated that the two sides are made up of vastly dissimilar people and their lifestyles (Wlezien). Pro-choice usually consists of young... ...89), pp. 229-230{primary scholarly, print via internet in original, authoritative} Wlezien, Christopher B.; Goggin, Malcolm. â€Å"The Courts, Interest Groups, and Public Opinion about Abortion†. Political Behavior, Vol. 15, No. 4. (Dec., 1993), pp. 381-405. {primary scholarly, print via internet in original, authoritative} â€Å"Unjust Punishment, Forced Contraception, and Poor Treatment of Women by the Courts and Prisons.† NARAL Pro Choice America Foundation. 27 April 1999. 22 March 2004. http://www.naral.org/facts/loader.cfm?url=/commonspot/security/getfile.cfm&PageID=1784. {unrestricted, internet publication, apparently credible} U. S. National Library of Medicine. Children's Hospital of Philadelphia, Philadelphia, PA. 2002. www.nlm.nih.gov/medlineplus/ency/article/002398.htm - 29k - Mar 8, 2004. {primary scholarly, print via internet in original, authoritative}

Hotel Management: Quality, Speed, Dependability, Flexibility, and Cost Essay

(a) make sure that the way he manages the hotel is appropriate to the way it competes for business; 1. Training and development of staff 2. Planning & Staffing 3. Marketing & Service innovations 4. Operations and management improvement 5. Welfare and motivation to employees (b) implement any change in strategy; (10 marks) (c) develop his operation so that it drives the long-term strategy of the hotel. (10 marks) 2. What questions might Wernie ask to judge whether his operation is a Stage 1, Stage 2, Stage 3, or Stage 4 operations on Hayes and Wheelwright’s scale of excellence? (20 marks) 3. The case describes how quality, speed, dependability, flexibility and cost impact on the hotel’s external customers. Explain how each of these performance objectives might have internal benefits. (50 marks) Speed Speed means do thing fast. Speed means fast response to requirements of external customers or new conditions, speedy decision making and speedy movement of materials and information inside the operation. It’s benefit are: 1. Speed reduces inventories – reducing i inventories mean increasing the utilization of rooms and restaurant, that fast cleaning and preparing the available rooms and dinner tables for external customers adds revenue for organization, and improving the efficient of working. 2. Speed adds flexibility – fast response adds the capability for operations to the flexibility dealing with urgent things. 3. Speed adds dependability – fast delivering for the latest information among other department of operations, such as the newest customer entrance information, available room information, adds the dependability for each internal operation’s coordination and communication. Dependability Dependability means do things on time. Dependability means well management and coordination with each operation ensuring other process. are reliable, such as delivering right material or information on time, correct foreseeing and planning the facilities, reorder and workforce. It leads to more effective operation. It effectively arranging the facilities, information, material, workforce, money and time to ensure all of them can be available at any time, saves the time to wait or to look for the other substitutes. Dependability arrangement reduces the chance of repeating input resources or some resources leaving unused increasing the cost of maintain or store fee, or labor cost. Flexibility Flexibility means change what you do. It means according different requirements or things to fast handle with, making change or decisions , flexibility arranging and coordinating operations’ work. 1. Flexibility saves resources – can prevent unnecessarily repeating planning, spending, and using resources such as time, money, workforce, to follow the traditional ways to do things done. 2. Flexibility increase speed of response – being able to give fast service for customers depends on the operation being flexible. Flexible operations speedily transfer extra skilled staff and equipment to the urgent conditions and emergencies will provide the service with other customer’s needs. Quality Quality means ‘doing things right’. For Mutiara, quality means consistently producing impeccable services, using top-class and durable materials to create the right impression and environment, and anticipating and preventing all potential problems in advance. It is benefit to make life easier inside the operation. 1. Good quality leads to stable and efficient processes that less mistake, easy for coordination for matching the standard of processes, dependable and advance equipments and tools to use adds dependability for internal customer. 2. It reduces cost for Mutiara due to it is fewer the chance to make mistakes. Redoing or correcting mistakes, or to reducing confusion or irritation for each people; second, it also reduces the labor cost. Dispelling some serious troubles or problem always needs more staff or more time to do it, thus, it results in the labor cost added, such as part-time salary, overtime compensation. The more minimizing mistakes, the more minimize the excess labor costs to pay for doing excess works; third, less mistake and using top-class and durable materials also result in saving expenditures such as maintaining fee, cost of materials resulted by mistakes, transporting fees, and other excess expenditures.

Family as portrayed in mass media Essay

Through the years, the role played by media generated socially relevant and noteworthy impacts to society. Because of exposes and investigative reports, several high-profiled and ranking individuals or personalities were forced to exit the limelight. The scandals and controversies that they went through were simply too much to bear. Whether such situations were intentional or unintentional, still it cannot be denied that media’s appeal and effects cannot be easily dismissed. On the other hand, media channels are also responsible for providing much needed information to the public. Every single day, it has been a habit for many to enjoy their favorite news programs. Others, who do not have the luxury of time, rely on newspapers and online news sites to keep on track and remain aware of the important issues of their respective communities. In recent years, being informed is a necessity rather than a mere caprice of one’s intellectual vanity. As information channels, there is no doubt that mass media has also assume the role of educating and indoctrinating many. However, if there is one thing wherein media is readily recognized—it is its capacity to bring pleasure and entertainment right in the very portals or domain’s of one’s house. While this may sound too superficial or critical about media’s function and importance, providing momentary relaxation and enjoyment is one of the fundamental reasons behind the continuous survival of different media institutions. Mass media are not created out of a vacuum. Aside from man’s desire to communicate and express himself, mass media also serve as the bread and butter of various business tycoons. Yes, it cannot be denied the fact that media are also business establishments or organizations that are aiming towards corporate-related goals and attributions, rather than maintaining its role as the public’s herald and opinion platforms. This also best explains why different media establishments use mass appeal as one of the most important factors to consider in producing various kinds of media content. As a result, various kinds of media-related products are often characterized by their mediocrity and artificiality. There are instances wherein media representations of reality are way to exaggerated or romanticized. The situations and events that are presented seem be too imaginary and does not really articulate the happenings of the real world. Like plain pictures, reality, as shown in mass media channels, such as the newspapers, radio and most especially in films and television programs are often sanitized. The situations and events that are actually happening in the real world are readily modified to capture the public’s attention and therefore garner high ratings and a pool of advertisers. On one hand, this aspect is something that commonly occurs. One should not be surprised with this system. However, since mass media are pretty influential, somehow it also affects the views and behaviors of their respective audiences. If the media is expected to become harbingers of knowledge and information, then clearly, this scenario defeats such purpose. Reality’s portrayal and depiction in mass media is yet one of the most important issues and areas of concern that should be attended and carefully addressed. This stems from the fact that media is the so-called â€Å"fourth estate† which means that these organizations are influential. It can shape and mould the opinions and views of many, which in return, are essential in creating necessary public decisions. In a sense, their notion of reality as portrayed by media can affect the manner wherein an individual generates action and responses towards his or her environment. One of the most popular themes that are often shown in the media, to be more specific in television shows and programs, revolve around family matters. Basically, there are some reasons that can explain the proliferation and promotion of such media content. First of all, filial concerns are generic and encompassing. It is generic since every human being belongs to a family. Regardless of whether a person grew up in a â€Å"foster family,† still the notion of belonging to a highly reliable and trusted group is still apparent. Perhaps the only difference is that, in such a scenario, the biological connections are absent. But then again, in terms of having a primary foundation for one’s identity and members who are always there throughout the time are evident. The kind of â€Å"togetherness† and â€Å"identification† that other groups cannot possibly provide can be seen in the family. Tackling topics and themes regarding the family provides a common ground for many viewers. The problems and experiences that are shown in family oriented shows are reflective of the daily undertakings of an individual. It is easier for the audience to relate and connect to such themes. Understanding the concepts that are being shown does not generate much difficulty compared to other television programs. Despite of the fact that there are episodes which may dwell on heavy themes, the complexity may not be as intense as those of highly-customized shows such as documentaries for example or even in television programs that specifically deals with scientific-related issues and concerns. Given this aspect at hand, family oriented shows can capture the attention and interest of the viewer’s majority in a household. Within a family of five, there is a big chance for a family-oriented program to control these audiences. One can just imagine how many viewers a family oriented show can accumulate in just a single episode. This of course does not include patrons who are outside of the United States. Lastly, it can be also argued that family television programs or shows have less possibilities of being subject to censorship by media regulation boards and groups. Family alone as a concept means that children are involved. Therefore, the producers of these shows should be wary about the language that they use. This is already given regardless of whether minor audiences are really involved or not. Being tactful is strictly observed. What does this mean? This means that the show can somehow avoid the pitfalls and repercussions of being suspended and paying large amounts or sums of fines. The operations are maintained and somehow the program is able to enjoy a considerably high rating and at the same time retain its most loyal viewers or audiences. There is indeed a market for family-oriented shows and programs. However, the more pressing issues and concerns that should be given focus in here is the manner wherein mass media portrays and depict the overall picture of family life. One of the most immediate matters that should be addressed is whether the actual reality of what is happening within the lives of many families is â€Å"truly† shown in television shows and sitcoms. More often than not, while it is true that mass media seeks for objectivity and unbiased representation of reality, it is still affected by the politics, culture and orientation that surrounds it. These forces cannot be really excluded in the whole discussion since these have effects and impacts when it comes to media content. Yet, one should be wary of the fact that focusing on how family life is being shown in mass media channels covers a wide scope. Therefore, in order to make the study more specific and maintain clarity, the explanations and arguments presented in this paper shall provide emphasis on how gender roles are being contextualized in family-oriented programs or shows. In lieu to this, power relations and class struggles shall be touched and analyzed in the whole discussion. The whole concept and meaning of the term â€Å"family† connotes and convey â€Å"oneness, togetherness and belongingness. † However, the divisions that are brought upon by gender and sexual orientations somehow affect the three notions. At the same time, this also have an impact on how the overall picture of being family is being created right in front of the public’s eyes. If mass media has the power to reflect the multi-faceted aspects of reality, then the shows and programs that are shown by these institutions is expected to bring reality—as close as possible to its specific set of audience and viewers. The overall system that dictates society is still patriarchal. The governing rule that is practiced and adhered to is still male-oriented. But then again, it can be seen that the so-called â€Å"girl empowerment† is now making its presence felt. Women are no longer seen as the weaker sex. However, many have been familiar with the â€Å"male system—† that totally asserting women’s voices and opinions becomes a complicated task. In this context, whether equality and justice is already achieved, shall be answered in the succeeding parts of the discussion.

Uae Fast Development Essay Example

Uae Fast Development Essay Example Uae Fast Development Essay Uae Fast Development Essay Saeed Al romithiID:201018469 The UAE is one of the fastest country in the world which made a lot of changes like constructions and technology ect. In the past half century UAE was filled with sand and not have much changed since the discovery of oil was found in the lands. Oil has changed the UAE from a sand field to one of the iconic cities in the world. Although, Changes aren’t bad in every scenario. Oil that made the UAE one of the richest countries in the world has also corrupted it; one of the corruptions is weather. The UAE is now growing really fast with their construction that has affected the environment. In the early days the UAE was one of the cleanest countries in the world. The sand color was as clean as red and the cool breeze from the seas have cooled the country peoples for decades. Through these best memorable moments most of the cities in the UAE now suffer with bad atmosphere from the cities vehicle as well as the blocked building that are blocking the cool wind from the sea. Therefore, Oil was not permanently bad for the country some good have came out of it. Energy source was a major priority for every country and the UAE was one of the most countries that have that energy source. In the old days our energy source was drawn from human power and we had only camels plus ships for transportation and they didn’t seem sufficient. With the population growing every year we needed to use our gift (crude oil) to our advantage and we did. We were introduced with new transportation technology like airplanes and trains from Europe and America that we made a deal with. To exchange our oil with there technology was our agreement. Furthermore, These new ways of transportations has helped us sincerely in the future. We now have enough food that can manage our country food supplies with this great new way of transportation. In conclusion we can say that oil has made many changes. Some are bad which have corrupted the environment atmosphere and by new constructions that have congested the cool breeze from the sea. Some are good that improved the lives of many people in the UAE with new transportation technology that has made our lives much superior.

Moschops Facts and Figures

Moschops Facts and Figures Name: Moschops (Greek for calf face); pronounced MOE-shops Habitat: Forests of South Africa Historical Period: Late Permian (255 million years ago) Size and Weight: About 16 feet long and one ton Diet: Plants Distinguishing Characteristics: Thick skull; short tail; front legs longer than hind legs About Moschops Moschops is a case study in how evolution produces roughly the same forms to occupy the same ecological niches. Although it was a therapsid (mammal-like reptile) rather than a true dinosaur, Moschops was markedly similar to later ornithopods and hadrosaurs like Iguanodon and Maiasaura: thick-set, medium-sized, and built close to the ground, the better to browse on low-lying vegetation. In an important sense, though, Moschops was the less evolved reptile, since it had a classic, splay-footed reptilian posture and (if it was possible) an even tinier brain. (By the way, the family of mammal-like reptiles to which Moschops belong went on to spawn the earliest true mammals during the Triassic period. It may seem hard to believe, but Moschops was the star of a short-lived kids TV show back in 1983, though its unclear whether the producers knew that it technically wasnt a dinosaur. Granted, that wasnt the only scientific inaccuracy: for example, Moschops shared a cave with his best friend, an Allosaurus, and his grandfather was a Diplodocus. Perhaps it was a good thing that Moschops only lasted for 13 episodes before fading into pop-culture obscurity.

Roe versus Vade Case Study Essay Example | Topics and Well Written Essays - 750 words

Roe versus Vade Case Study - Essay Example Critics of the judgment have commonly made their arguments based on individual ethical beliefs which are immaterial when examining the language of the Constitution. The point of view that is opposed to the Roe decision can be promptly invalidated by the legal definition when evaluating the specific wordage contained within the Constitution in addition to understanding past precedent of constitutional decisions reached by the Supreme Court. However, there are legitimate questions regarding the Constitutional matters of the Roe decision that warrant answering. The word â€Å"abortion† is not contained within the Constitution but merely because the word itself is not present, the Constitution remains the source of legal precedence for this matter. The justices’ interpretation of the Constitution is the central focus of this subject. Since the Supreme Court is more conservative today in terms of general ideology than in 1973, many think that soon its interpretation of the i ssue will nearer resemble former Justice William Rehnquist’s dissenting opinion concerning Roe v. Wade. â€Å"The Court must be wrong to find any basis for this right in the 14th Amendment to the Constitution. To reach its result, the Court necessarily has had to find within the scope of the Fourteenth Amendment a right that was apparently completely unknown to the drafters of the Amendment† (Pavone 2005). Understanding that courts do undeniably have the power to intercede in decisions involving personal rights citing Constitutional precedence, could laws precluding abortions still be justified despite of what many consider an egregious encroachment on the civil rights of women? After all, constitutional rights are not absolute. Why shouldn’t the federal government be concerned with protecting the rights of persons yet to be born? The Fourteenth Amendment definitively answers this question. The Amendment begins by referring to â€Å"All persons born ... in the United States† (â€Å"Fourteenth Amendment†, 2011), signifying that the protections guaranteed by the Constitution refer to those persons who have already been ‘born.’ When many people criticize the Roe judgment, they base their opposition entirely on moral grounds but lawyers, scholars, and particularly judges who denounce the high court’s decision should do so based only on constitutional grounds. If they wish to voice their moral concerns they should draw a clear distinction between the legal and moral objections. The legal argument in opposition to the decision should address both the Fourteenth and the Ninth Amendment which states, â€Å"The enumeration in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people† (â€Å"Bill of Rights†, 2011). Persons opposing legalized abortions have stated that the ninth, and all other amendments, does not expressly refer to an abortion proced ure consequently the Constitution does not apply when attempting to establish the legitimacy of abortion rights. This point of view, however, very apparently contradicts the statement of the Ninth Amendment which undoubtedly promotes the recognition of abortion rights and all other personal rights in addition to what is specifically contained in the Constitutio

Not sure Essay Example | Topics and Well Written Essays - 1250 words

Not sure - Essay Example In this activity, students were required to write about themselves on the pieces of paper and throw them to one another. This helped the students understand one another’s background and lifestyle in general. I also introduced myself to others and asked them what I wanted to know about them. This activity filled confidence in me so that I could communicate better. I learnt almost all conversation with my team members after this class rather than learning the professional words from the lecture. I learnt how important it was to be good at communication and to be able to engage with teams to get a better understanding of a new field. Since I had not done any prior readings, I did not completely understand this unit’s structure despite the fact that my unit coordinator had clearly explained everything. Besides, I was busy in few advanced professional expressions. I was eager about making a time management plan so that I was clear about the assignment submission due dates, h omework requirements and the prior reading required. It would help improve my efficiency and time management skills. Week 2 In week 2, I liked the searching activity in which I had to use the library resources together with my team members. We discovered a lot of information about our studies by accessing the online data available at the ECU website. I found out that this online library tool enabled us to locate a variety of sources. We could easily locate references of a specific year by looking at the sources for its year range. Our team did a referencing exercise including both end-text and in-text referencing following the referencing guide of ECU. We also reviewed our first pieces of reflection and exchanged views upon that with one another. For example, my team members liked my management plan’s format whereas I liked the terminology abbreviation memorizing process proposed by my mate. This activity helped improve our formatting and research skills, and also improved my ability to cooperate with my team. There was also an activity that our team did which was least interesting. It comprised two scenarios with the same set of questions about the ACE theory of Kathleen Reardon. Understanding it with real examples would have been easier than the case study in the book. Since I had done the pre-reading of the chapter â€Å"Persuasion†, I knew its importance and features already, along with the strategies needed to make effective persuasions. This part went smoothly. However, I needed to develop competence in the theoretical part of the persuasion along with their relevant terms. The learning I have gained from the online library searching activity will help me in the studies in the future and will also improve my cooperation and communication skills. I have also learnt the strategies of persuasion that I will use in my professional career in the future. Most importantly, I have developed good interpersonal skills. Week 3 Week 3 was about managem ent of stress and time. In this week, we did an activity i.e. Exercise 4B that attracted me because it was very much real; we gave a life stress test that helped us identify our stress conditions by answering different questions about our life events. I calculated my scope by ticking off many boxes of life events that were related to me and that might cause stress. I thought I would score the highest since I thought of myself as a highly stressed person, but I was surprised to learn that I had scored the lowest. I learnt that everybody experiences stress, and that

Folkloristic reflection- occupational Assignment

Folkloristic reflection- occupational - Assignment Example At the same time we also perform cowboy related activities, we make sure that your cattle herd are well taken care of by cleaning where they sleep, provide them with water and we also make sure that they are well fed. Our final responsibility is environmental cleanliness. We clean the environment and also educate the youth on the same. We realized that the current generation youth do not like taking care of the environment, therefore we took upon ourselves to educate them voluntarily (Thomas 220). Our core values and skills are respect, teamwork, good organization skills and the ability to learn. Our group has managed to accomplish a great deal because of these skills. Respect has enabled the community to trust us, at the same time we make sure that all the workers respect one another and team work has made us carry out various tasks in a short period of time. The ability to learn because the kind of work we are doing is dynamic and therefore without the willingness to learn we may not accomplish much. While good organizational skills has been emphasized by our group because we deal with a lot of activities and therefore every worker have to make sure that everything is in place. In the group the various positions are elective posts. We usually hold our elections every three months. The candidates are nominated according to their contribution to the group. Therefore, the chairman must be someone who is very hardworking and focused. Our group is very different from other groups in that whatever we do. We try to give back to the society as we make it certain that most of our activities are aimed at making sure that our society is properly maintained. In addition, we also pride ourselves in the quality of work we deliver. We make sure that all our services are done to the best of our knowledge. This can be seen by the various awards we have won and the numerous events we have been called to give a public

Principle Of Material Balance With Chemical Reaction Biology Essay

Principle Of Material Balance With Chemical Reaction Biology Essay The aim of this report is to make use of the principal of material balance with chemical reaction so to able to find out the yield, conversion rate and rate of reaction for the batch process. The hypothesis made in this experiment was when the concentration of sodium hydroxide decreases, the conductivity values also decreases. The steps for conducting this experiment are to prepare the reagents first. Then allow the reaction between the two reactants sodium hydroxide and ethyl acetate to mix together for reaction. Take note of the time and draw graphs of the reaction and finally find the yield of the reaction. There are two conditions to be studied in this case and it can be determined by the group itself. In this report, the concentration used is 0.01M of ethyl acetate and 0.02M of ethyl acetate solution. The yield calculated was that yield was higher in 0.02M of ethyl acetate compared to 0.01M of ethyl acetate. The rate of reaction is higher also in 0.02M of ethyl acetate solution based on the steepness of the graph. This is because as more molecules react with each other, more product will form at the same time and therefore in average, more product are formed at the same time and hence rate of reaction increase. However, the conductivity value was higher in 0.01M of ethyl acetate compared to 0.02M of ethyl acetate. This happened as more NaOH is being reacted with 0.02M of ethyl acetate solution. When this occurs, the conductivity value decreases as NaOH is a best conductor of electricity among the reactants and if the concentration decreases, the conductivity values also decreases and vice versa. Overall, the hypothesis made and the aim made for this experiment is correct and it also follows the law of material balance with chemical reaction. iii 1. Introduction Background Literature In the process industry, maximizing the yield is important as not only it save cost of production, but also bring more profits to a company. However, maximizing the yield is closely related to the conversion of units and rate of reaction. This is because with the help of the two factors, then maximizing yield could be done possible (Singapore Polytechnic 2009). Much time were set apart in this area at the industry to adjust the factors to optimum factors for the maximum yield it can have. Beside maximum yield, maximum reaction is also required between the reactants. Reaction rate is especially important in the industry as there is a need to know exactly what is the required time needed for the reaction to be complete. It can be calculated by finding the rate of the reaction is going at a constant time and multiply against the amount of reactants used. In this experiment, the main objective is to look at the saponification of sodium hydroxide and ethyl acetate solution to form the desired product sodium acetate. Overall, the whole experiment wanted the students to get prepared for the fundamentals of material balance with chemical reaction through the reaction between the reactants to get the final product. 1.2 Aim The aim of this experiment is to study and determine the yield, conversion and reaction rate of the starting reagents sodium hydroxide and ethyl acetate. It helps the students to know how to calculate the yield. 1.3 Hypothesis In this experiment, the main objective is to find out the relationship between the concentration of NaOH and the conductivity values. According to the theory, as the reaction of ethyl acetate increases, conductivity values will decrease and vice versa. 1 2. Theory 2.1 Introduction of Theory In this case, material balance deals with chemical reaction where students associate the product and the reactants. Material balance states that reactant that goes in to react must come out from the system as a product. The law of material balance also states that a system must, by conservation of mass, either leave the system or accumulate within the system. (Wikipedia 12 Dec 2009) The reactants used are sodium hydroxide and ethyl acetate by processing it batch wise in a reactor to produce the desired product sodium acetate and the by- product ethanol. 2.2 Saponification Saponification is the hydrolysis of an ester under basic conditions to form an alcohol and the salt of an acid This term is normally associated with the reaction of an alkali (normally metal) with a fat compound to form soap. However, only certain lipids that contain ester linkages can undergo hydrolysis. This reaction is also catalyzed by a strong acid or base. (Wikipedia 12 Dec 2009). The alkali that is going to be used is sodium hydroxide solution and the ester that is to be used is ethyl acetate solution. After it had reacted, it will form the product sodium acetate. In the past, saponification also refers as soap making as the properties of the reactants is about the same only with the exception that fats or oil is used instead of the ester ethyl acetate. 2.3 Batch Process Batch process is an operation where a fixed amount of reactants are being fed into the reactor. It is an unsteady state process where the flow rate of the system is not proportional to the time taken to flow. So therefore, the rate where sodium acetate where it is formed is not constant and the rate of accumulation are also not constant. Accumulation consists of either the reactants which had not been used up during the reaction or the product that are being left inside the reactor. The product will stop producing if any of the reactants is used up. The reactant that is being used up first is the limiting reagent. Normally, limiting reagent is the more expensive reagent. Because it can save up cost of production as it is considered wasteful if there is any expensive reagent not used up. Ethyl acetate, being the more expensive reagent, will be the limiting reagent in wise. There are also two equations relating to the batch process. Final Output-Initial Output = Generation Consumption If there is no reaction, Initial Input= Final Output (Product=Reactants) (Singapore Polytechnic 2009) 2 2.4 Conductivity Conductivity is a measure of an electrolyte of its ability to conduct electricity. (Wikipedia 2009) The S.I unit of conductivity is Siemens per metre (S/m). Conductivity measurements are usually used in many industrial and environmental applications. This is because it has been proven as a fast, inexpensive way of measuring the ionic content of a solution. For example, the measurement of product conductivity is done so by tracing the performance of the water purification system under close monitor. In many cases, conductivity is linked directly to the total dissolved solids (T.D.S). High quality deionised water has a conductivity values of about 5.5 lS/m, drinking water is in the range of five-fifty mS/m while sea water is about 5 S/m. The reason why sea water has such high conductivity because of the ionic compounds dissolved in it and all of them are conductor of electricity. The most basic compound dissolved in seawater is table salt, Sodium Chloride. For this experiment, the result that is required is the conductivity of sodium hydroxide solution after reacting with ethyl acetate for a certain period of time. The amount of time set for the reaction is twenty minutes and it can be adjusted accordingly. 2.5 Yield Yield is the amount of product obtained in a chemical reaction. The units of yield can be given in grams or in moles. To be exact, yield is also defined as the mole/s of desired product formed per mole of key reactant fed into the reactor. This experiment also required the students to find out the yield or how much the products it has which is the desired product sodium acetate. Even though ethanol is still considered as a product, it is a by-product and hence the yield is not required to find out. 3 Procedure (Singapore Polytechnic 2009). 3.1 Pre- Assessment activity Before starting the experiment, besides preparing the starting reagents, students have to ensure what are the equipments required for this experiment. After checking it, make sure to rinsed all apparatus with D.I water to ensure no impurities present in any of the equipments. There is also a Material Safety Data Sheet (MSDS) that tell us the nature of NaOH and ethyl acetate. The data sheet also tells us what are the hazards and the safety precaution to take note of for these two compounds. 3.2 How to Prepare the Starting Reactant Firstly, students must read how to handle NaOH and ethyl acetate and the recommended way of disposing these two chemicals. Disposable gloves and chemical goggles is a must as even if the chemical spilled out, the glove will prevent the chemicals from harming the students. 500ml of ethyl acetate is to be prepared at this stage as the concentration is being discussed during the pre- assessment activity. Students may use the measuring cylinder to measure the required volume of both reactants and the volume is the pre-determined during the pre-assessment activity. Then both are being poured into the 500ml volumetric flask respectively. The solutions are to be filled up to the 500ml mark for both reactants. 3.3 Experimental Setup Pour in the NaOH solution to the reactor. Alter the set up condition accordingly by the discussed by the group earlier same as the volume used for the reactants. Make sure it is approved by the lecturer. Remember to record down the reaction of conditions such as the stirring speed of the stirrer, concentrations, temperature and the volume of the reactants. Make sure the conductivity probe is inside the solution. Pour NaOH in first. Then when ethyl acetate solution is poured in, start the timer immediately. Record the value every 1 minute and this goes on up to 20 minutes. After 20 minutes, stop the stirring device and remove the magnetic bar using the magnetic rod. Clean all the equipments properly (e.g. Clean the conductivity probe with D.I water etc). Before doing so, pour all the unwanted solution to the containers respectively. Repeat the experiment again with different condition. Repeat the steps mentioned above. Tidy up the workplace and the experiment is considered done. 4 Results And Calculation 4.1 How to Determine the Yield of Sodium Acetate at 15 Minutes for 0.01M of Ethyl Acetate? The yield of sodium acetate at 15 minutes can be determined by the concentration of NaOH. From the concentration, students can find out the amount of mole of NaOH and also by the molar ratio of NaOH and ethyl acetate. By making use of the results form the procedure, students can also find out the concentration of NaOH and ethyl acetate. Theoretical Mole of NaOH = 0.01 X 0.5L = 0.005 mol Actual Mole of NaOH = 0.00156 X 0.5L = 0.00078mol Number of moles reacted = 0.005 0.00078 = 0.00422mol Conversion of NaOH= 0.00422/0.005 X 100% = 84.4% Theoretically, since 1 mole of NaOH react and form 1 mole of CH3COONa, actual mole of CH3COONa= 0.00078 Yield of CH3COONa= 0.00078/0.005 =0.156 4.2 What Is the Yield When 0.02M of Ethyl Acetate Solution Used At 15 Minutes? Theoretical mole of NaOH = 0.02 X 0.5L = 0.01 mol Actual mole of NaOH = 0.0017 X 0.5L = 0.00085mol Number of moles reacted = 0.01 0.00085 = 0.00915mol Conversion of NaOH= 0.00915/0.01 X 100% = 91.5% Theoretically, since 1 mole of NaOH react and form 1 mole of CH3COONa, Actual mole of CH3COONa= 0.00085 Yield of CH3COONa= 0.00085/0.01 = 0.085 5 4.3 What Is the Rate of Reaction When 0.01M And 0.02M of Ethyl Acetate? Figure 1: Rate of reaction for 0.01M of ethyl acetate Figure:2 Rate of reaction for 0.02M of ethyl acetate 6 4.4 How to Determine Rate Constant The rate constant can also be determined by the graph except by drawing a tangent line against it as the tangent line mean the rate is going at a constant rate. Figure 3: Rate constant for 0.01M of ethyl acetate Graph shown above is straight line. Gradient= 0.00265-0.0012 Ã · 20 1 = 0.0000763 (From the graph) Figure 4: Rate constant of 0.02M of ethyl acetate Graph shown above is straight line. Gradient= 0.00275 0.00125 Ã · 20 1 = 0.0000789 (From the graph) 7 Discussion 5.1 Factors Affecting Rate of Constant The factor that may affect rate of constant is temperature of the reactor, concentration of the reactants, pressure or volume of the reactants. Firstly, as temperature rises, it can lead to a higher probability of particles colliding each other. Hence it will increase rate of reaction with an increase of the temperature, the moving speed of the molecules increases, with higher moving speed, it will increase the chances of molecules colliding to each other, therefore increases the rate of reaction. However, during the experiment, the temperature of the reactor was keep constant at a range of 23.5oC which is at room temperature, therefore, temperature was not taken in to account in this experiment. Secondly, concentration of the reactors, with a high concentration of the reactant, the rate of reaction with also increases. This is caused by the increasing number of particles in a reactant. With larger amount of particles, the successful rate of particles colliding in to each other are higher, therefore cater to a faster rate of reaction. However, as we are conducting the experiments, instruction of using a constant concentration of the reactant were told, therefore, concentration of the reactant is also not to be taken in to account. 5.2 Factors Affecting Conversion and Yield The equation above have NaOH and ethyl acetate as their reactants and sodium acetate and ethanol as the products formed. As indicated on the lab manual, the amount of NaOH used is fixed at 0.1M, therefore reactant A is ethyl acetate and the desired product is sodium acetate. The factors that affect the yield of the desired product are the volume and concentration of reactant A which are fed in to the reactor. With an increment of both the volume and concentration of reactant A, the number of moles of the reactant will increase. Two experiments were done to prove that volume can cater to a different yield. The first trail of the experiment, the volume of ethyl acetate was set to 0.49cm3 and on the second trial, 0.92cm3. The yield of the product decreased as the volume increased, this was proven as the yield of the second reaction was lower than the first. 8 Factors Affecting Conductivity Values Mainly, there are two main factors that are affecting the conductivity values. There are the speed of the stirrer and rate of reaction. When the speed of the stirrer increases, the conductivity values decreases. This is because it introduces more collisions between the particles and hence more products are formed at the same time. As more NaOH is being converted to sodium acetate, the conductivity value will increase as mainly NaOH is the best conductor of electricity present within the reaction and vice versa. Temperature indeed affects the conductivity values but as the temperature during the reaction is being kept constant, it will not be any of the factors that affect the reaction. Precautions In Experiment There are some precautions taken for the experiment. For example, when handle corrosive or volatile chemicals such as NaOH or ethyl acetate, make sure to wear disposable glove and avoid smelling ethyl acetate as it is a volatile liquid. Also, the smell of ethyl acetate is harmful to our body and when are diluting it, it is best to wear a surgical mask while extracting the pure ethyl acetate solution. While doing the experiment, wear safety goggles at all times to prevent the spurring of the reactants during the chemical reaction. After doing the experiment, also make sure that the magnet is taken out by the magnetic rod and not take it by the hand itself. This is because chemicals present in the beaker may not have reacted completely and traces of reactants may still be found present in the solution. This is a common mistake made by students as some of them will take it out by bare hand after realizing they did not take it out before washing. Comparison between the Yields of Different Concentration of Ethyl Acetate. Yield obtained in 0.01M of ethyl acetate is 78% while yield obtained in 0.02M of ethyl acetate is 85%. After comparing the yield between the two concentrations of ethyl acetate, 0.02M of ethyl acetate tends to have higher yield than 0.01M of ethyl acetate solution. The result is the same as the hypothesis made at the start of the report. This is because as there are more molecules of ethyl acetate present during the reaction. The rate of reaction increases because of the kinetic particle theory. The kinetic particle theory states that as more molecules collide during the reaction, it will form more products. Hence, yield will increase as more products are formed. 9 Comparison between the rates of reaction of different concentration of ethyl acetate. The curve was smoother in 0.01M of ethyl acetate compared to 0.02M of ethyl acetate. This is because with a high concentration of the reactant, the rate of reaction with also increases. This is caused by the increasing number of particles in a reactant. With larger amount of particles, the successful rate of particles colliding in to each other are higher, therefore cater to a faster rate of reaction. Hence, rate of reaction was faster in 0.02M of ethyl acetate compared to 0.01M of ethyl acetate. 10 6. Conclusion In conclusion, the aim that was made at the start of the experiment was successful as students has indeed learnt the fundamentals of material balance that even though the time required to make the product varies with the amount of products, anything that goes in must also get out is the main point that the students learnt. There are many factors that can affect the condition studied. This includes temperature, pressure, volume, rate of reaction, conversion and yield etc. Also, as the NaOH concentration increases, the conductivity values also increases and vice versa. This is the same hypothesis made in this report and therefore it can be concluded that the hypothesis is correct. 11

Analysis of We Real Cool by Gwendolyn Brooks Essay -- essays research

Poetry Essay â€Å"We Real Cool†, Gwendolyn Brooks The poem â€Å"We Real Cool† is a very powerful poem, although expressed with very few words. To me, this poem describes the bottom line of the well known â€Å"ghetto life†. It describes the desperate and what they need, other than the usual what they want, money. Without actually telling us all about the seven young men, it does tell us about them. The poem tells of the men’s fears, their ambitions, and who they think they are, versus who they really are. The poem begins with the word â€Å"We†, which is the only line in the poem that begins in this such manor, although the word â€Å"we† is repeated six more times throughout the poem. The â€Å"we† that I believe is represented at the beginning is the unity that comes from these seven friends. When y...

Is it valid to make distinctions between ‘high’ and’ low’ or ‘popular art? Essay

What purposes do these categories serve? At one time most people would have understood , when looking at apiece of art, whether to fit it into the category of high or low art. You looked at such things as the quality of the brushwork, the exactness of the representation. Then paint in tubes was invented the mid 19th century and the Impressionists were in the vanguard of almost instant art. They were rejected at first of course, but now seem to be highly acceptable when one considers the prices that might be paid for works by Renoir or Degas – however blurry the outlines. Is abstract art high art? It is a newer form of course and many are still making up their minds about such artists as Jackson Pollack. And where do you fit the works of modern artists such as Tracy Emin. Few would consider graffiti as art, but cities such as Philadelphia are legitimising the work of graffiti artists by spending public money to promote it. Emin’s unmade bed won the Turner prize. Whatever else it did it certainly did what the artist intended – it shocked. Contemporary art such as this draws huge crowds Perhaps the distinction should rather be between good and bad art, good being art that clearly displays whatever it was the artist intended and the bad that which does not. This division would not depend upon techniques used or the insurance value of a piece, but whether it achieves what it was meant to achieve i. e. whether or no the viewer sees what they were intended to see. Art will always provoke reaction. To judge it on grounds of being either ’high’ or low’ smacks somewhat of elitism – an attitude of ‘What we like is better than what you like’. Meanwhile many would just say ‘I know what I like ’ whether that be Gainsborough or Andy Warhol. Electronic Sources Art and the power to shock, Northern Echo, 25th February 2004 http://archive. thisisthenortheast. co. uk/2004/2/25/60621. html retrieved 28th October 2007 Philadelphia Mural Arts Program found at http://www. muralarts. org/about/ retrieved 28th October 2007/.

Genetic explanations Essay

Genetic explanations for the Initiation of addictions Heritability of addictions such as alcoholism and gambling can be studied through family and twin studies. The presumptions of twin and family studies are that if family members share similar behaviours, then the degree to which the behaviours are caused by genetic factors can be examined. There are two types of twins, identical and non-identical. Identical twins are monozygotic (MZ) as they came from the same egg, and therefore share an identical set of genes. Non-identical twins are dizygotic (DZ) as they come from two different eggs that were fertilised at the same time, and as a result their genes are no more alike than any brother or sister’s. Twins can also differ in the environment that they are brought up in. Some twins may, rarely, be separated at birth and therefore have very different upbringings. If researchers are able to find MZ twins who have been raised apart (i.e. same genes but different environments) then they will be able to distinguish between the influenc e of genes and environment on a certain behaviour. If MZ twins who have been raised apart booth show the same behaviour, then the behaviour is probably genetic; but if only one of them has that behaviour then it may well be caused by the environment. The degree to which twins and family members share a behaviour is termed a concordance rate, with 1 (or 100%) being entirely genetic, and 0 (or 0%) being entirely environmental. McGue (1999) found a concordance rate of 50-60% for alcohol addiction, and Agrawal & Lynskey (2006) found a concordance rate of 45-79% for addiction to illicit drugs. This means that just over half of the factors that cause addiction to alcohol are genetic in origin, as are half to three-quarters of the factors causing addiction to illegal drugs. A problem with this conclusion, however, is that the genetic link may be for behaviour disorders rather than addiction, and these behaviour disorders may manifest as many antisocial behaviours including alcohol and drug use. The sensitivity of the dopamine system is one biological explanation for the imitation, maintenance and relapse of addictive behaviours (see below), and so it would make sense for researchers to look for genes that are responsible for causing particularly sensitive or insensitive dopamine systems. One such gene is called the DRD2 gene (or dopamine receptor density 2 gene). The DRD2 gene codes for the number of dopamine receptors available in the mesolimbic dopamine system. A person with fewer dopamine receptors is  unable to ‘feel’ the effect of dopamine as well as someone with a higher number of dopamine receptors, and so needs higher levels of dopamine to produce the same effect as a person with more dopamine receptors. People with the DRD2 A1 variant of the gene have fewer dopamine receptors, and also seem more vulnerable to addictions. Evaluation for genetic explanations of addictive behaviour Genetic inheritance may explains individual differences in addiction Genetic inheritance can, through the diathesis-stress model, explain why some people become addicted whereas others in the same environmental situation do not. The diathesis-stress model is the idea that a genetic vulnerability may manifest in the right circumstance – e.g. if a person who is susceptible to becoming addicted, due to their genetic inheritance, is suffering from some form of stress or boredom due to environmental factors, then they may partake in an addictive activity. However this is a very deterministic view of human behaviour that ignores environmental factors, as not all people with the A1 variant of the DDR2 gene become addicted even if they partake in a potentially addictive activity. Inconsistent research findings linking specific genes to addictions Noble (1998) found support for the DRD2 A1 gene being linked to alcoholism (the gene was found to be carried by 48% of severe alcoholics, 32% of less severe alcoholics, and 16% of non-alcoholic controls), but many other studies have failed to find such a link. Specific genes are linked to other disorders as well as addiction The DDR2 A1 gene is also common in people with autism and Tourettes, as well as in people with addictions. Autism and Tourettes sufferers are not pleasure seekers and do not tend to suffer from addictions, and so the link between the A1 variant of the DDR2 gene and addictions is unclear and far more complex than simply claiming that the gene causes addiction. The dopamine model of addiction Initiation of addictive behaviour: Dopamine is released in the mesolimbic dopamine system of the brain, to signal reward and pleasure. If a behaviour causes dopamine release then the brain knows to â€Å"do it again† – e.g. eating, drinking, keeping warm, having sex – these are adaptive behaviours in evolutionary terms as they help an  organism/species to survive in its environment. Unfortunately other non-adaptive behaviours (i.e. behaviours that do not necessarily aid survival) can release huge amounts of dopamine (e.g. gambling and drug taking). Certain chemicals (e.g. amphetamines, alcohol, cocaine) can directly cause huge amounts of dopamine to be released. The effect of this dopamine release is to tell the brain that the behaviour is desirable and that it should seek to DO IT AGAIN! And according to incentive sensitisation theory, desire for the rewarding substance or behaviour persists even in the absence of the substance or behaviour. Maintenance of addictive behaviour: Repeated exposure to an addictive behaviour or substance causes reduced sensitivity to the dopamine release through a process known as down regulation. This means that more of the behaviour is needed to cause the same pleasurable psychological effect in the mesolimbic dopamine system. Stopping the behaviour altogether creates a state of disequilibrium in the dopamine system, and leads to withdrawal symptoms that can only be reduced by repeating the (now learned) behaviour. This disequilibrium, an increased need for dopamine stimulation, and the unpleasant withdrawal symptoms it causes now drive behaviour so that it is no longer pleasure (positive reinforcement), but the need to reduce withdrawal symptoms (negative reinforcement) that drives the addict’s behaviour. Relapse of addictive behaviour: When an addict finally manages to stop engaging in a behaviour or taking a substance, they are at risk of relapse. According to the dopamine model, relapse can be explained by addiction causing permanent brain changes that lead to lasting memories of the substance or behaviour. Environmental reminders of the addiction (e.g. being in a pub, watching horse racing, returning to a location where drugs were taken, being under stress) can release small amounts of dopamine, which in turn lead to the addicted person desiring a greater dopamine reward that can only be obtained by re-engaging in the addictive behaviour Evaluation for the dopamine model of addiction Support for the dopamine model of addiction: Support for the dopamine model comes from many experimental studies, such as  a study into the effects of ritaline (Volkow, 2001). Volkow gave a drug called ritalin to healthy volunteers and correlate their subjective experience of the drug with the density of dopamine receptors in their mesolimbic dopamine systems. Those that reported pleasurable feelings with ritalin had fewer dopamine receptors than those that hated its effects. This supports the theory that some people are more vulnerable to the effect of dopamine-releasing drugs than others. Neurochemical explanations ignore social factors: An important point to note is that neurochemical explanations for addiction (e.g. the dopamine model) ignore social and environmental factors that may also contribute to addictive behaviour. However, they can lead to effective treatments for addictions, e.g. replacing cigarettes with nicotine patches. Implications from animal research: Grant et al (1998) found that animals that lost social status also lost dopamine receptors, and offers therefore a possible explanation for social-class based addictions (e.g smoking in lower socio-economic groups). However, animal studies may not be generalisable to human addictive behaviour. Inevitability of dopamine sensitivity leading to addiction: The dopamine model suggests that reduced dopamine sensitivity, as caused by fewer dopamine receptors, inevitably leads to addictive behaviour. However, there is likely to be a complex interaction between an individual’s specific environment and whether or not dopamine sensitivity leads to addiction. A stimulating environment may provide enough dopamine reward to protect people from addiction, whereas a dull or boring environment may not (Volkow, 2003). Neurochemical explanations are reductionist: Neurochemical explanations for addiction reduce addictive behaviour to a simple variance in the structure of the dopamine system, and so ignore social and cognitive factors that can influence addictions. However they can lead to effective treatments, so in this case it is useful to be reductionist.