Racial Diversity in Society Worksheet Essay Example for Free

Racial Diversity in Society Worksheet Essay Complete the following using the MySocLab Social Explorer Map: Income Inequality by Race (located on the student website) as a reference: †¢Select 1 racial group from the list below: African American Asian American Arab American Hispanic American/Latino White/Caucasian †¢Write a 150- to 300-word summary of the economic, social, and political standings of that group. Use additional resources if necessary, from the University Library or your textbooks. Provide citations for all the sources you use. Hispanic Americans or Latinos in America descend from many different countries such as Mexico, Puerto Rico, Cuba, and The Dominican Republic. They come to the United States as immigrants for a variety of different reasons, but the most common is that they come here in search of the American Dream. From an economic point of view Hispanics remain at the bottom of the job ladders due to the fact that many of them are not educationally equipped and are not fluent in English which are both necessities when it comes to the jobs in demand. Their lack of formal education is what is keeping them down in our nation’s technology run job market. Studies show that less and less Hispanic Americans are finishing high school, and without the skills that education will teach them they will continue to flounder in todays economy. When it comes to social statistics it is overwhelmingly clear that faith and family have and continue to be the cornerstone of the Hispanic American Family values and a huge part of their religious based culture. Politically, due to the fact that the majority of  Hispanic Americans are lower or middle cla ss, they tend to agree with the democratic views when it comes to politics. Part II Answer the following in 50 to 150 words each. Provide citations for all the sources you use. †¢What is racism? In what ways does racism affect diversity? Racism can be defined as the belief that a specific racial group is superior or inferior to another and that there is nothing that any individual who belongs to that racial group does (economically, socially, politically) can change it. Racism affects diversity through outlets such as discrimination and prejudice that we hold against one another due to the fact that our skin is not all the same color. Today, we hear words like that (prejudice and discrimination) and we are quick to object to the accusation that we can still, after all we as a nation have overcome when it comes to touchy subjects like this, be guilty of such negative ways of thinking. However, it is clear that some things clearly have not changed when we look at statistics that show that in American society whites are still hired for high paying jobs in greater numbers than minorities with the same credentials or that minorities still seem to make up the majority of inmate populations in todays prisons. †¢How do racial groups interact in contemporary America? Are interactions positive, negative, or neutral? Support your response using proper citations. Today, it is not uncommon for racial groups to interact with each other in a mostly positive way due to the fact that in most communities we are not separated based on our racial background when it comes to things such as the schools we attend and jobs that we are allowed to hold like we have been in the past. This is thanks to desegregation and affirmative action laws that have been put into action over the past several years. However, even with these laws we are not a perfect nation and there is still cases where social  inequities can allow discrimination and prejudices to rear their ugly heads in today’s society. Social inequities can affect a particular races basic human rights such as the right to live in a certain area, be hired for a certain job, be able to travel freely, acceptance into schools or colleges, and even the right to vote. †¢Are there existing social inequities based on race? Why or why not? Social inequities is one of those touchy subjects that some people say still exist and some people say does not. Like many subjects similar to this one (racism in general, prejudice, and discrimination) people’s views on it can differ tremendously. Some speak from experience and some speak on it based on facts that they are taught. I’ll touch on an example that I previously mentioned to support the argument that yes, social inequities are existent in today’s society. When you look at prisons today, it is clear that minorities make up a much larger chunk of the inmate population than whites. People who argue that social inequities are the cause of this say that this is a result if whites having always been a more protected race in the US and because of this so called protection, they are favored in the justice system and are given more access to better attorneys. People who support the idea that social inequities don’t exist can of course use the argument t hat the reason that minorities make up most of the inmate population is simply because they are the ones who are responsible for committing the crimes that get them in trouble in the first place. †¢What do you believe to be the causes of racial prejudice and discrimination in today’s society? Looking back at our Nation’s history, it’s clear that racism has and continues to be a problem here. However, it’s also clear that he have taken huge steps, which include legal actions, in order to eliminate it. Unfortunately it is not something that can be completely abolished overnight, and we have to have patience in order to keep the movement pressing forward. The awareness that courses such as this one provides are also great tools when it comes to educating more people on the issue, the  causes, and what can be done to keep it from spreading. I believe that the main cause of racial prejudices is the fact that although as a nation (united) we are against it there are still individual people and families amongst us who refuse to stop it in their personal lives and who continue to teach it to their children generation after generation. Racism is something that is taught, as there is now way for it to be passed genetically or inherently. References Braubach, M. (2010, January 4). Social inequities in environmental risks associated with housing and residential location—a review of evidence. Oxford Journals. Retrieved from http://eurpub.oxfordjournals.org/content/20/1/36.abstract?sid=4aa802c1-b338-41e1-b724-eef7ecee7791 Huffman, A. (2012, November 15). How Hispanics Impact Political, Social and Economic Climate. Charisma News. Retrieved from http://www.charismanews.com/us/34581-how-hispanics-impact-political-social-and-economic-climate Schaefer, R. T. (2012). Racial and Ethnic Groups (13th ed.). : Merrill Prentice Hall.

Problem Oriented Policing Pros and Cons

Problem Oriented Policing Pros and Cons Problem Oriented Policing What, exactly, is problem oriented policing? Critically discuss its potential benefits. Policing in the UK and many other countries play an extremely vital part in helping to reduce different forms of crime. The police have a major impact on what becomes defined as a crime, which offences are prioritized, and which sections of the community are portrayed as ‘dangerous’ or ‘troublesome’. (Waddington, 2000:156). There are a number of different approaches to reducing crime; however my main focus throughout this essay will be on problem oriented policing. Problem oriented policing has its advantages as well as disadvantages in preventing crime. In this essay I will discuss whether problem oriented policing has potential benefits in order to prevent crime in society. Police in the UK today is seen as a civil service that helps to solve and tackle the problem of crime. The police are faced with many problems everyday and do their best to deal with it within the restrictions of law, there are a number of different policing strategies used to tackle and prevent the problem of crime. Policing is a social institution which involves maintenance, peacekeeping, crime investigation, prevention and the rule of law enforcement which involves having a certain amount of power to serve their purpose (Jones and Newburn, 1998). To understand the current situation of policing it is essential to look at the background and history how crime was reduced in the past and what changes have been made in order to help reduce and prevent crime today. Although policing has some core features globally (Bayley, 1985; Mawby, 1999; Waddington, 1999a: 3-4), the exact forms that it takes vary widely, even within particular localities. Modern British policing, for example, with its ‘omnibus role’ incorporating ‘crime prevention, detection, peacekeeping, public order maintenance and the preservation of state security (Reiner, 1994a:755) emerges from several very different historical strands. The occupation of patrolling to prevent crime and apprehend offenders emerged from the functions of the medieval constable and watchmen, while ‘riot control’ emerged from the role of military in suppressing disorderly crowds (Rawlings, 2002; Vogler, 1991). These differing traditions, and the ideologies and practices they have given rise to, represent continual tensions in policing. Crime in the past was not as a great deal as it is in today’s society. There have been a lot of social changes as a result the way in which the state was controlled differed as there weren’t a lot of opportunities to commit crimes in the past. In today’s society, there are many different forms of policing as there are a number of different offences that need to be dealt with in a diverse way. In 1829 Sir Robert Peel established one of the well recognized policing systems which were the Metropolitan police. People hoped that the political system would improve aspects of society because in the 19th century, crime rates were increasing and the home office and government needed to act quickly upon this problem or things would get worse. Also there is a criticism of the role of policing as it is only concerned with crime and the enforcement of law which has restrictions and limits only to a certain extent to prevent crime (Goldstein, 1979). Goldstein argued that a new strategy needed to be developed as most crimes are in the same place and committed by the same individuals. Developing new strategies for preventing crime came about because of social, cultural, economic changes and growth of the state over the years. The criminal justice system as an approach on its own didn’t seem to have a great deal of an effect in controlling crime as it was made up of prosecuting, sentencing and punishing those who had offended. As a result when addressing the problem of crime, it was seen as a suitable way to use an additional approach alongside the criminal justice system which in this case is problem oriented policing (POP). In the 1980’s a new idea was introduced to the police in order to reinforce primary crime prevention. ‘This idea was called problem-oriented policing (POP), which was developed in America by Herman Goldstein’ (Goldstein, 1979; 1990) it’s purpose was to seek the main route of the crime and analyse it in order to understand why the crime had happened. POP became a success in the UK and North America. (Pease, 1997). It involves rank and file officers becoming pro-active in solving root causes of reoccurring problems in relation to the type of offender, localities and victims (Tilley, 1996). Problem oriented policing is a type of pro-active policing strategy and has become increasingly influential in the UK and addresses problems systematically in an ongoing process. The development of POP was based on perception that demands placed upon the police service meant that key issues of community to the community were often neglected (Tiley, 2003:318) ‘thus the active involvement of the community and external agencies is often vital to the identification of problems and the development of strategies to solve them’ (Leigh, Reid and Tilley, 1996:5). Crime prevention in Britain has constantly been seen as being the duty of the police. The British crime survey in 1982 showed that crime was four times higher than police had recorded it. (Walklate, 1996.) And more recently Barclay, (1995) found that only 3% of government expenditure on crime and criminal justice matters was spent on crime prevention. (Pease, 1997.) This showed that that the police alone could not combat such a level of crime. The basic premise of POP ‘is that the core of policing should be to deal effectively with underlying police-recurrent problems rather than simply to react to incidents calling for attention one by one as they occur’ (Bullock and Tilley, 2003:1). ‘This approach places the application of scientific methods at the heart of policing’ (Ekbolm, 2002; Bullock and Tilley, 2003: 5-6; John and Maguire, 2003:38) and involves: ‘identifying and analysing recurrent problems’ ‘interrogating their underlying sources’ ‘finding some points of intervention that will block caused and risk factors’ ‘Implementing the initiatives that have been devised’, ‘evaluating the success of initiatives put forward to respond to identified problems.’ An example of this would be in Clarke and Goldstein, 2002, which was a study done on a construction site that concerned theft. The crime was understood to be easy access to valuable products being available where the site was poorly safeguarded. With police assessment and knowledge of the problem, the construction site followed guidelines and some procedures where the police monitored compliance in order for it to be tracked. The results showed that the reaction the police got was successful as the analysis focused on understanding the circumstances that caused the problem to occur in the first place. In this sense it could be seen as a successful way to help prevent crime as no power was used, no arrests were made and it solved the problem quickly and effectively saving the police and company time and money. This is a successful way to monitor how different companies can protect themselves by doing a straightforward task such as getting appropriate equipment to guard property such as alarms, and then offenders will think twice before wanting to carry out a crime if the opportunity is not there. Problem oriented policing also engages in problem analysis triangle (PAT) and scanning, analysis, response and assessment (SARA). In a two year research project conducted in Leicestershire, there was training based on PAT and SARA which provided officers with knowledge of what the job involves. This was an experiment which involved tackling specific problems. The research project makes use of the strategies by identifying a problem, using knowledge and data to look further into the problems and causes of crime. It also teaches officers how to respond in an effective way by working with the community to assess if the solutions worked and what has been learnt. Problem oriented policing has gone further by being introduced in Thames Valley policing in 1997, Merseyside and other police forces. This shows that the approach used is a wide geographical spread, long term prevention program that is successful in tackling the underlying causes of problems. This project builds an idea how it would be successful to deal with problems and help prevent crime by working together and finding a solution that will prevent problems. It also shows how PAT and SARA is used to prevent crime and solving community problems. Problem oriented policing is therefore examining patterns of crime to identify and prevent underlying problems within the community. Oriented policing has shown to of had a great impact on the United States and is becoming more influential in the UK. The government and home office have implemented and introduced several different laws and agencies to help reduce crime. However, it is open to discussion to say what it is regarding problem oriented policing that has made it more significant in the UK and does it work? There are many merits as well as drawbacks to the benefits of problem orientated policing. There are a number of benefits of problem oriented policing, these include: ‘Decentralisation, POP attempts to move the focus of police decision making away from managers and towards front-line officers who are in a better position to understand the causes and possible solutions for problems’( John and Maguire,2003:65). It has been argued that ‘officers must know the underlying issues locally, be in contact with the community, have information to help understand the nature of the problems that generate clusters of incident, be supported by senior offices in attempting to solve problems imaginatively and tailor problem-solving to emerging local issues’ (Jordan, 1998:73). This should enable police resources to become more directly related to community needs. ‘Enhances the status of neighbourhood officers, POP envisages a significant role for local police officers whose status in the police service are likely to rise’ (Blair, 2005). ‘A shift away from law enforcement, POP involves activities to solve crime-related issues which are undertaken by agencies other than the police and by local communities’ an example of this is the burglary reduction initiative on a large housing estate in Stockport. (Bratby, 1999: 28-9). ‘Emphasises the importance of intelligence to police work, POP places considerable emphasis on the gathering and analysis of intelligence as the basis of society’s response to crime. The emphasis is on eliminating problems in the future as opposed to reacting to past incidents’ (Joyce, 2006:130). However a drawback of this point is it could be argued that the scanning and analysis of the data collected may not be accurate as it is community biased so is the data collected true and who is benefiting from the work carried out. It could be looked at in a sense that the community need to help themselves address issues as well as with the help of the police. For example when addressing the trouble of gang activities, the community need to get involved by disciplining their children and if gangs are making a nuisance of themselves then the community need to tackle this problem together. Even though there is optimistic perspectives in the benefits of problem oriented policing. Problem oriented policing has changed the work of some police forces so it makes it easier to refer to other cases and they have knowledge of what is going on. Officers will find it easier to respond to problems and know what they are dealing with so that the main cause of the problem is solved, reducing the risk of it happening again. It is obvious to state that the police must work with the community to know what issues must be addressed, however, how much are people in the community willing to participate. It has been seen that progress in applying a problem-oriented approach to policing was patchy (HMIC, 1998) and many were identified as being a long way off from implementing it fully (HMIC, 2000). The reason for the relatively slow progress includes: ‘The need to respond to incidents, much police work is demand led, having to respond to calls for help made by members of the general public’, ‘Complexity, considerable social skills are required in connection with problem identification, the analysis of their causes and the evaluation of the strategies to respond to these issues. These skills are not readily found within the police service, these activities are time consuming’. (Goldsteing, 2003; Matassa and Newburn, 2003:213). It has been argued that ‘POP is interpreted and implemented in too many ways to permit any firm conclusion’ (Stockdale and Whitehead, 2003:244) it has been further argued that the assessment of outcomes in monetary terms is insufficiently developed to be able to assess whether POP is cost effective Stockdale and Whitehead, 2003:249). It can also be argued that problem oriented policing deals with minor incidents such as theft and ignores other major problems. By focusing on such a minor problem is not going to be benefiting the community as there are other crimes that need to be addressed and the police will sooner or later deal with the problem by enforcement. A small amount of attention is paid to the oriented policing approach in dealing with problems it is likely that with policing they tend to naturally think enforcement. Oriented policing is interpreted and implemented in a number of ways; it is difficult to implement it. Also officers may not take the approach seriously due to the hassle of paperwork and following that procedure sometimes does not fit in with the police forces routine so there is the drawback of the approach not being used. Culture is another drawback within the police force as most officers have the principle that crime can only be solved if actual force is used. If officers are following this belief then no problems will get solved because the origin cause will not be solved, offenders will keep committing the same offence and officers will take action by using enforcement. It is clear to see that problem oriented policing has its drawbacks but this is the situation with most crime prevention strategies. Every strategy that has been implemented will always have its pros and cons. Research shows that this approach would work if it was encouraged more and used more effectively within the day to day routine of the officers. The police forces find it straightforward and easy to use enforcement. Other strategies involved in reducing crime, such as intelligent led policing and community policing. They work in a different way compared to problem oriented policing. Even though these three models are pro-active strategies there job roles cannot be correlated to work collectively as they have different means and different functions. The proactive approach has an impact on crime reduction as it produces a compelling solution and reduces the underlying causes of crime without being too reactive. There are a number of factors that make up problem oriented policing and it has a lot of benefits. The benefits of problem oriented policing are clear to see that it involves a better served public, convenient demands on the police because underlying problems are solved such as reducing replicate emergency calls and officers with greater job satisfaction from being successful in meeting the communities objectives. Overall it seems that Goldstein’s approach was not successfully used as it was planned. The main reason being the police force are involved in tackling the cause of problems but there is no time for it as police forces are so complex. The objectives of policing are set nationwide and there are no serious circumstances of implementing problem oriented policing, I have outlined many advantages and disadvantages to this approach throughout this essay, and it seems to show that the benefits are lower than the disadvantages of this approach for this approach many things do need to change also other agencies need to be involved as it cannot solely be up to just the police force to battle the problem of crime. On the whole, problem oriented policing has its implications but it has delivered some benefits and the approach is still undertaken today so to a degree it is beneficial to the community in some way. Referencing list Goldstein, H. (1990) Problem-Oriented Policing, New York: McGraw-Hill Joyce, P. (2006) Criminal Justice, An Introduction To Crime and The Criminal Justice System. Chapter 3 (page119) Policing: methods, structure and organisation Lecture 7 Handout, Proactive/Problem Oriented/Zero-Tolerance Policing Maguire Mike, Morgan Rod and Reiner Robert, 2002, The Oxford Handbook of Criminology, chapter 26, Crime Reduction. Newburn, T. (2003) Handbook of Policing, Cullompton: Willan Tilley, N. (2005) Handbook of Crime Prevention and Community Safety, Cullompton: Willan Walklate, S. (Ed. By McLaughlin Muncie) (1996) Controlling Crime. London: Sage.

An Argument Against the Death Penalty :: Death Penalty Argumentative Persuasive Papers

An eyewitness to the execution of John Evans in Alabama describes this scene from the final moments of a death penalty sentence being carried out: "The first jolt of 1900 volts of electricity passed through Mr. Evans' body. It lasted thirty seconds. Sparks and flame erupted from the electrode tied to his leg. His body slammed against the straps holding him in the electric chair and his fist clenched permanently. A large puff of grayish smoke and sparks poured out from under the hood that covered his face. An overpowering stench of burnt flesh and clothing began pervading the witness room. Two doctors examined Mr. Evans and declared that he was not dead." It took three jolts of electricity and 14 minutes before John Evans was declared dead (Radelet, "Facing the Death Penalty"). Throughout history, various forms of executions such as this one have taken place as a punishment for crime. In 1976, the United States reinstated the death penalty after having revoked it in 1972 on the grounds that it "violated the Constitution's ban on cruel and unusual punishment" (MacKinnon, "Ethics" 289). Since its reinstatement, the morality of such punishment has been extensively debated. I argue that the death penalty cannot be morally justified on the basic grounds that killing a human being as a form of punishment is wrong. A major argument supporting capital punishment is that it serves as a deterrent to crimes - specifically, murder. However, this argument requires that the would be killer would take at least a moment to consider what the consequences of murder within our legal system are. This assumes that the killer is capable of such reasoning, and that the crime would be considered before it occurred. In fact, "those who commit violent crimes often do so in moments of passion, rage and fear - times when irrationality reigns" (Information, "Capital Punishment" 107). Whether or not a murder or crime is premeditated, there are statistics existing that cause us to question how supportive an argument of deterrence can be. In 1989, Senator Edward M. Kennedy, appearing before the Senate Judiciary Committee said that if we look at other Western democracies, "Not one of those countries has capital punishment for peacetime crimes, and yet every one of them has a murder rate less than half that of the United States" (Information, "Capital Punishment" 110). The Information Series on capital punishment also says that states that FBI statistics from 1976-1987 show that "In the twelve states where executions take place, the murder rate is.

Defintion Essay - Is it Possible to Define Art? -- Expository Definiti

Defintion Essay - Is it Possible to Define Art? Art is the intentional use of some medium to communicate emotions or ideas between minds. Some combination of the five senses is used to conduct information, so art may take the form of music, painting, sculpture, dance, and others. Art may be collaborative, as with the presentation of a symphony, which may involve a composer, a conductor, players, and a lighting crew all working to create the art of the presentation. Also, art occurs in at least one level of abstraction removed from reality, a representation of the real thing. There is no requirement of beauty in art. Indeed, some of the highest quality in art is attained by some of the ugliest things. An example is the film, Schindler's List. Its representation of oppression and violence is revolting at times, but its ability to convey a clear message is strong. Perhaps the most appropriate gauge of quality in art is its effectiveness in communication. There may be a tempting tendency to assume that effective communication necessitates that the artist and the audienc... Defintion Essay - Is it Possible to Define Art? -- Expository Definiti Defintion Essay - Is it Possible to Define Art? Art is the intentional use of some medium to communicate emotions or ideas between minds. Some combination of the five senses is used to conduct information, so art may take the form of music, painting, sculpture, dance, and others. Art may be collaborative, as with the presentation of a symphony, which may involve a composer, a conductor, players, and a lighting crew all working to create the art of the presentation. Also, art occurs in at least one level of abstraction removed from reality, a representation of the real thing. There is no requirement of beauty in art. Indeed, some of the highest quality in art is attained by some of the ugliest things. An example is the film, Schindler's List. Its representation of oppression and violence is revolting at times, but its ability to convey a clear message is strong. Perhaps the most appropriate gauge of quality in art is its effectiveness in communication. There may be a tempting tendency to assume that effective communication necessitates that the artist and the audienc...

The Steps Which America Should Take to Reduce Our Dependence on Foreign

It is important that America should take immediate action to reduce its dependence on foreign oil. If America continues to have a great demand for it, it will create a threat to the country’s economy and national security. There are three primary actions that America might take in order to reduce its dependence on foreign oil: Alaskan oil drilling, off-shore oil drilling, and natural gas drilling. America’s dependence on foreign oil is a threat to its economy. Per minute, America wastes $200,000 and per hour, $13 million by relying on it (Natural Resources Defense Council, p. 1). Gasoline consumption has led to an increase of costs of oil which is passed on to consumers at the pump, through more expensive goods and services, and in a weaker job market and lower stock prices (Natural Resources Defense Council, p. 3). Therefore, if current trends in oil demand and prices continue, economic impacts for the U.S. will intensify. It is possible for America to reduce its dependence on foreign oil, but the petroleum industries and other monopolies have paid Congress to take out the competition (Worthington, p. 1). Legal monopolies are targeting the market effects of foreign oil, which increases profits, while America’s government obliges them. Unfortunately, these de jure monopolies have kept America in a dirty fuel monopoly that has been arranged to terminate its o nly competition to create a government-granted monopoly (Worthington, p. 1). As for the national security, by importing more and more oil each year, there is an increase of demand and a decrease in domestic production. The United States can become more secure by enforcing the work on farms and factories to reduce our thirst for foreign oil (Natural Resources Defens... ...es revenue from the sale of offshore charters and helps win political support for energy and climate legislation (Broder, p. 2). The political response to off-shore drilling is positively approved. The Offshore oil drilling plan is considered to be a new chapter in the nation’s search for an approachable energy policy that can release new areas to oil and gas enlargement. Interior Secretary, Ken Salazar, has said that he hoped to rebalance the nation’s oil and gas policy to block oil exploration beneath virtually all public lands and waters (Broder, p. 3). An option, that was introduced, other than depending on foreign oil and reducing oil imports was the use of biofuels. This can lead to an increase of the purchase of hybrid cars for the motor industry. Off-shore drilling is an appropriate action that can reduce the amount of foreign oil imported by America.

How To Talk About Sculpture

Consider if the material is an advancement for that time (I. E. Oil paints) 3. Subject – what or who does it represent? 4. Method of sculpting? Additive Roding subtractive Michelangelo found object Decamp 5. Tyler/period? Regional satirical artist's personal style (style of the workshop) 6. Point of view? WHY? (hint: you have to look at 8, 11, 12, 13 and 14 to answer this) Where was it originally? (see #13 and 14) *** 7. Composition – organization of forms (form: shape and structure, ad or ad)?While the Sours can be divided equally traits down the center (axial symmetry) the Speedboater CANNOT. Yet, the Sparseness's lines are based on a system of diagonals that help to create contraption tense -vassalage helping to create movement. Now look at the composition of both pieces. The Sours is both balanced and exhibiting axial symmetry, however the Speedboater is also balanced but NOT exhibiting axial symmetry as it is possible for a piece of art work to be balanced but not symmetrical. 9. Color if any?Where was this sculpture originally? What does it do to the museum space that it currently occupies? How do you think it would have affected the space around it in its original position? 14. Intended use? Intention usually affects the space around it and is directly related to the â€Å"three AS† of shaping art that you will know and love by the end of the master: patronage, philosophy (including religion) and propaganda.Now that you've done all that let's READ the piece: 1 . How do the formal aspects relate to the school/style of the period, person or school? Outside sources? Do they follow suit or do they break free from the constraints and introduce something NEW? What does this mean? Was there some kind of advancement? Was there a new THOUGHT or belief system coming into play? 2. How do the formal aspects affect the feeling of the piece, how does it affect the view and the space around it? . How do the formal aspects reflect its purpose? . How do the formal aspects SHAPE the piece you are looking at? How does the artist CHOOSE to manipulate these formal TECHNIQUES to create meaning? 5. How do the â€Å"three AS† shape the formal aspects and in turn shape the piece and the artist's methods of making the piece? This is only the beginning of the process. Use your own observations, relate all of the above to each other and READ your textbook in no time at all you will develop the skills to deconstruct and talk about sculpture.

An Analysis of the Observed Heterozygosity of Lake Trout

An analysis of the observed heterozygosity of Lake Trout populations from three lakes: Devil, Eagle, and Loughborough, inferred from microsatellite genotypes. Abstract: This study was undertaken in order to compare the heterozygosity of three Lake Trout populations at various loci. Samples of twenty-five Lake Trout were collected from three lakes: Devil, Eagle and Loughborough, all three of which are situated north of Kingston, Ontario. An autoradiograph was used to analyze the genotypes of the individuals at six different loci of microsatellites, which are repeat sequences in the DNA that are neutral and do not code for proteins.This data was used to compare the genetic diversity of the three different trout populations. Numerical values for observed heterozygosity (Ho) were then generated using the data and the Doh heterozygosity calculator. The results have indicated that the mean heterozygosity in respect of Devil Lake trout was significantly greater than that of the trout in Eag le Lake (p=2. 89E-7) as well as that of Loughborough Lake (p=1. 44E-19). Furthermore, the mean heterozygosity for Eagle Lake trout was significantly greater than that of Loughborough Lake (p=2. 2E-6). This may be due to the fact that natural selection acts as a force to cause inbreeding to eliminate harmful genes causing low heterozygosity in a population. In addition, human and natural effects occurring in the lakes, for example, fishing and water temperature may cause differences in heterozygosity. Understanding and using these findings may help with sustaining fish populations. Introduction: Heterozygosity is the measure of the genetic variation in a population at a particular gene locus.Genetic variation within a population is important in maintaining or increasing the fitness of members in the population and ultimately the survival of the species. Fitness describes the capability of an individual species of a certain genotype to reproduce, and is usually equal to the proportion of the individual's genes in all the genes of the next generation. A positive correlation was found between the heterozygosity at the loci and the fitness (survival and maturation) of the fish, suggesting that heterozygosity is advantageous (Pujolar et al. 005). A heterozygote advantage describes the case in which the heterozygote genotype has a higher relative fitness than either the homozygote dominant or homozygote recessive genotype. An individual's fitness is manifested through its phenotype, and the phenotype may be affected by both genes and environmental characteristics. One such characteristic that was observed to possibly have an effect on levels of heterozygosity in a population was the area in which the population lives. In an experiment conducted by Rowe et al. 1999) the heterozygosity of various populations of Natterjack Toads (Bufo calamita) found in several areas were compared, ultimately discovering a lower heterozygosity in a population that is isolated from other s. Volckaert and Zouros (1989) conducted a study to measure genetic diversity levels in scallops (Placopecten magellanicus) and discovered levels of heterozygosity to be highest as age increased. Ferguson (1990) found similar information that affects diversity among rainbow trout (Oncorhynchus mykiss) and concluded that heterozygosity levels were proven to have a direct relationship between the sex, size and age of the fish.There are many factors that may affect the genetic diversity of a population. In particular, various events and environmental characteristics may affect the genetic diversity of Lake Trout. One factor may include fishing. This activity may cause the population of the fish to decrease at an unstable rate, thus this study will be undertaken to determine the many factors that may contribute influences to the genetic diversity of Lake Trout in three lakes: Devil, Eagle and Loughborough Lake.Using six microsatellite loci from 25 Lake Trout from all three lakes, observ ed heterozygosity values that act as an indicator for genetic diversity, will be obtained and analyzed. This data can be further used by analyzing and providing additional information about the influences of certain characteristics on population genetics. Results: Figure 1 illustrates that the lake with the greatest observed heterozygosity is Devil Lake. It was determined that the observed heterozygosity of Devil Lake is significantly greater than the observed heterozygosity of Loughborough Lake (p=1. 4E-19). The sample size for all 3 lakes was 25 Lake Trout. Figure 1. The graph illustrates the mean observed heterozygosity of the three lakes. The error bars represent standard deviation. Discussion: The conducted experiment involving heterozygosity of Lake Trout from Devil, Eagle and Loughborough Lake shows that there are significant differences between the three lakes. Devil Lake had the highest mean heterozygosity within its population, Eagle Lake heterozygosity was found to be in the middle and Loughborough Lake with the lowest.It was determined that the observed heterozygosity of Devil Lake was significantly greater than the observed heterozygosity of Loughborough Lake (p=1. 44E-19). The difference in the data set’s outcomes may be explained by a number of factors, such as natural selection, fishing and restocking the lake, and lake temperatures. All these factors may cause diversity in heterozygosity. The goal of an organism is to reproduce and pass their genes on to the next generation allowing the species to survive.The passing on of genetic material can be achieved through inbreeding or outbreeding. Inbreeding is the breeding amongst family or self; outbreeding is the breeding with members of the same species that are not closely related. It may be believed that inbreeding is not good for a population with such opinions being based on having seen the result of inbreeding in humans. Inbreeding as well as outbreeding, however, has both advantages a nd disadvantages. One advantage of inbreeding is its ability to depress the expression of recessive alleles (Ellstrand and Elam 1993).In a population with a damaging recessive allele, an individual may not seek to mate with anyone who potentially carries or expresses that allele. In this example the population might inbreed to decrease the heterozygosity in an attempt to remove the harmful gene. Mating within the family- when it is apparent that the family does not carry the detrimental allele, is more ideal in an evolutional prospective than putting the survival of that population at risk.In regards to Ellstrand and Elam’s study, this situation could occur in the Lake Trout from Loughborough causing the Lake Trout to have a lower mean heterozygosity. This Lake Trout population could be purging undesired alleles from its gene pool. One can conclude that not only does genetics have an effect on heterozygosity, but humans do as well. Another factor that may cause a loss of gene tic diversity is fishing pressures. Smith et al (1990) suggested that fishing activities which concentrate on spawning populations differentially remove the older and more heterozygous individuals from the virgin stock.Previously stated, levels of heterozygosity are higher as age increases (Volckaert and Zouros 1989). Due to fishing, the amount of Lake Trout may decrease and there would be less fish. To fix the amounts of fish in the lakes, humans restock the lakes with hatchery fish (fish that are grown by humans and released into the wild). Evans et al. (1991) found that the human harvested fish tend to have lower genetic variation and actually decrease the fitness and survival of the native species. Loughborough Lake has the biggest population but the lowest heterozygosity.Compared to Eagle Lake and Devil Lake, most people from the Loughborough Lake area receive their income from fishing (Ontario Ministry of Natural Resources 1970). Excessive fishing depletes the amount of fish a nd creates the perceived need to continually restock the lake with fish. The practice of restocking the lake with hatchery fish may result in the large population of Lake Trout which would in turn decrease the heterozygosity of Loughborough Lake. There are other factors that may contribute to increase levels of heterozygosity in fish.One such characteristic that may increase levels of heterozygosity in fish is fluctuations in water temperature. Zimmerman and Richmond (1981) found that highly variable thermal regions demand for greater fitness. The fittest of fish are more heterozygous because they are able to survive in different temperatures. In Zimmerman and Richmond’s experiment, the greatest temperature fluctuation was 7Â °C, with the highest heterozygosity level of 49%. This trend may prove that the greater the temperature fluctuation, the greater the heterozygosity of a population living within the waters.The temperature fluctuations of the three lakes are: Devil Lake at 31Â °F, Eagle Lake at 21Â °F, and Loughborough Lake at 7Â °F (Ontario Ministry of Natural Resources 1970). These numbers correlate with the data by showing that Devil Lake with the highest temperature fluctuation has the greatest heterozygosity, whereas Loughborough Lake with the lowest temperature fluctuation has the lowest heterozygosity. The mean heterozygosity of Lake Trout from Devil Lake was significantly greater than that of trout from Eagle Lake, which was greater than that of Loughborough Lake.Potential reasons for genetic diversity may be caused by natural selection acting as a force to cause inbreeding to eliminate harmful genes, fishing in the lakes which then require the lakes to be restocked with hatchery fish, and thermal fluctuations that cause differences in heterozygosity. Further research and experiments specifically looking in depth at effects that causes genetic diversity should provide greater insight into why the heterozygosity in populations varies. Lit erature Cited: Ellstrand N. , Elam R. 1993.Population genetic consequences of small population size: implications of plant conservation. Annual Review of Ecological Systems. 24: 217-242. Evans D. , Casselman J. , Wilcox C. 1991. Effects of Exploitation, Loss of Nursery Habitat, and Stocking on the Dynamics and Productivity of Lake Trout Populations in Ontario Lakes. Ontario Ministry of Natural Resources. 193: 1-3 Ferguson M. 1990. Enzyme Heterozygosity and growth in Rainbow Trout: Genetic and Physiological Explanations. The Genetical Society of Great Britain. 8: 115-122. Ontario Ministry of Natural Resources. 1970. Map of Eagle Lake. Map of Loughborough Lake. Map of Devil Lake. Queen’s University Map and Air Photo Library. 613. Pujolar J. , Maes G. , Vancoillie C. , Volckaert F. 2005. Growth Rate Correlates to Individual Heterozygosity in the European Eel, Anguilla Anguilla L. Evolution. 59: 189-199. Rowe G. , Beebee T. , Burke T. 1999. Microsatellite heterozygosity, fitness and demography in natterjack toads Bufo calamita. Animal Conservation. 2: 85-92. Smith P. Francis R. , McVeagh M. 1991. Loss of Genetic Diversity due to Fishing Pressure. Fisheries Research. 10: 309-316. Volckaert F. , Zouros E. 1989. Allozyme and physiological variation in the scallop Placopecten magellanicus and a general model for the effects of heterozygosity on fitness in marine molluscs. Marine Biology. 103: 51-61 Zimmerman G. , Richmond M. 1981. Increased Heterozygosity at the Mdh-B Locus in Fish Inhabiting a Rapidly Fluctuating Thermal Environment. American Fisheries Society. 110: 410-416