Incomplete and Complete Achromatopsia :: Biology Essays Research Papers

Incomplete and Complete Achromatopsia The human eye requires both rods and cones for normal vision. Over 100 million rods are located in the periphery of the human eye, and about 6 million cones compose the fovea. Rods, the more sensitive of the two to light, are not able to differentiate wavelengths, thus cannot detect color, and perceive shades of grey, black, and white. Cones, on the other hand, are of three types, containing particular pigments. They are categorized as red, blue, and green depending on to which wavelength they are most sensitive. These cones are what render color vision to humans. Red-green color blindness is not uncommon in the general population. The unequal crossover in the X-chromosome which causes this disorder is much more easily achieved than the mechanisms which cause other types of color blindness, due to the proximity of the two pigment genes. Five to eight percent of men are affected with this genetic condition, and due to a lacking pigment, have trouble distinguishing between red, green and brown. (1) Blue color blindness, also known as incomplete achromatopsia or blue-cone monochromatism, is an X-linked recessive disorder in which only the blue cones and the rods are functioning properly. A previously proposed theory states that signals from rods travel in the same pathways which carry signals from the blue-cones, making color vision in a blue-cone monochromat impossible. However, current research on blue-cone monochromats shows that signals from some rods and cones may be traveling by separate pathways to where wavelength discrimination takes place, making color vision possible in this type of monochromat, when both rods and blue cones are working simultaneously under twilight conditions. (6,7) Total color blindness, or complete achromatopsia, is an autosomal recessive disorder. (2) This is defined as little or no function of the cone cells, (3) and is somewhat frequent among Moroccan, Iraqi, and Iranian Jews. (7) There is no treatment for this color deficiency, only ways to alleviate its expression. (4) The consequences on the lives of complete achromats are many, and those of children should especially be considered. Many educational materials use different colors to teach. If vowels are red and consonants are black, the two are virtually indiscernible to an achromat (They may be discerned under certain light conditions, a phenomenon known as spectral differentiation). They may also not have yet learned to discern the different shades of grey, and may need help deciphering traffic signals.

Critical Review of Article on Financial Statements Essay example -- Ac

A Critical Review of Georgiou, G. (2010) â€Å"The IASB standard-setting process: Participation and perceptions of financial statement users†, British Accounting Review, 42 (2), pp.103-118. Dr George Georgiou is a senior lecturer in Accountancy and the director of the MSc International Accounting & Finance course at the Birmingham Business School, University of Birmingham. He has the following qualifications: BA, MAcc, PhD & CPA. Georgiou is also a PhD supervisor in his research interest topics which lie in accounting regulation, accounting theory, government accounting and market-based accounting. (University of Birmingham, 2010). As stated by Bruce (2010), financial statement users are often described as the primary users of financial statements. Yet, few financial statement users have the time or the preference to get involved in the IASB standard setting process. Georgiou's article sets out to show the gap in the literature of the involvement of financial statement users and the amount of control they have in the accounting standard-setting process. The author states that it is important to financial statement users to believe that their perception and participation is vital in the standard setting process. Introduction Georgiou puts forward an argument for financial statement users in that their involvement is material and frequently accounting standard-setters give an explanation for the approval of their standards by appealing to the interest of financial statement users. The author verifies the importance of the problem area by referencing Young (2003), who also puts their argument across in support of financial statement users. Young (2003) expresses that financial statement users are used in a nutshell to prov... ...or outreach. Available: http://www.ifrs.org/News/Features/Spotlight+on+investor+outreach.htm. Last accessed 9 November 2010. Duff, A, Ferguson, J & Gilmore, K. (2007). Issues concerning the employment and employability of disabled people in UK accounting firms: An analysis of the views of human resources managers as employment gatekeepers. The British Accounting Review, 39(1), 15-38. Sutton, T. G. (1984). Lobbying of accounting standard-setting bodies in the U.K. and the U.S.A: a downsian analysis. Accounting, Organizations and Society, 9(1), 81–95. University of Birmingham. (2010). Profile: Dr George Georgiou. Available: http://www.business.bham.ac.uk/staff/georgioug.shtml. Last accessed 5 Dec 2010. Young, J. J. (2003). Constructing, persuading and silencing: the rhetoric of accounting standards. Accounting, Organizations and Society, 28(6), 621–638.

Much Ado About Nothing: An Overview :: essays research papers

Much Ado About Nothing: An Overview It is a beautiful spring afternoon. The air is full of the radiance of freshly bloomed daisies and the energizing chill of the periodic spring breeze. Puffy large cumulus clouds fill the azure sky with gray thunderheads looming off in the distance. Looking down from the clouds, one can see a gathering of finely dressed people. Birds flying overhead hear the murmurs of the crowd gathered for a wedding of gentry. Shakespeare could never have planned the first scene of Act IV in Much Ado About Nothing so well. The serene sky overhead symbolizing the beauty and joviality of the occasion; dark rain clouds looming in the distance foreshadowing the mischief to come. Despite his inability to control weather patterns, Shakespeare developed marvelous scenes which he displayed in his own theater, The Globe. How did Shakespeare portray the emotional aspects of his characters and their strife to his audience? How did he direct the actors and what did the open air stage of The Globe look like? Imagine yourself in London circa 1600, a short year after the completion of the Globe Theater and perhaps a few months after the completion of the play Much Ado About Nothing, Act IV has just begun. Claudio and Hero are facing each other in front of a simple, yet anciently beautiful altar, garbed in Elizabethan costume fit for the occasion. Hero is wearing a long white dress with trailer and high neck which is adorned according to the fashion trends of the time. Claudio has donned a royal looking doublet with silver trim and hose to equally as majestic. Sitting on either side of the couple in ancient pews, shrouded in solemn silence, are Don Pedro the Prince of Aragon, Don John the Bastard, Leonato, Benedick, Beatrice and the attendants of Beatrice and Hero. Facing the couple, positioned in between them so the audience may hear him, is Friar Francis wearing a simple white robe and golden cross, his only posessions. Don Pedro wears a doublet ornately embroidered with golden designs. He is the only person on stage looking finer than Claudio, marking his royal blood to all. The others wear fine doublets and dresses, although not decorated elaborately, to show their respect for the wedding pair. Scene IV actually begins when Leonato stands and makes his brave but respectful request to the Friar to be brief with the ceremonies (IV i,l1). Knowing his duties, the Friar continues square-faced with the wedding by asking Claudio of his intentions to marry Hero (IV i,l5). Without hesitation Claudio responds, "No." (IV i,l6) He means that he does not intend to marry Hero.

Othello †It Ranks High or Low? :: Othello essays

Othello – It Ranks High or Low?  Ã‚        Ã‚   William Shakespeare’s tragic drama Othello has been given high marks by some critics and low marks by others. Let us elaborate on this problem in this essay.    In the volume Shakespeare and Tragedy John Bayley explains why the modern audience feels so exasperated when viewing this play:    But Othello is not freed by this sense of his own situation: he has been caught in it as if in a snare. And instead of being freed by the hero’s consciousness of things, and sharing it with him, we are forced to stand outside Othello’s delusion. The play grips us in its own artifice of incomprehension. And for most onlookers, nowadays, the sensation seems to be more exasperating than it is either thrilling or painful. (200-201)    The feeling of exasperation on the part of the audience is not universal. Lily B. Campbell in Shakespeare’s Tragic Heroes explains the factor that made Othello significant among the tragedies of its time:    The Moor goes to the task of killing his wife in the name of justice;    Thy bed, lust-stain’d, shall with lust’s blood be spotted.    And in the second scene, the scene of the murder, he cries again as he looks upon the sleeping Desdemona and kisses her:    Oh, balmy breath, thou dost almost persuade Justice to break her sword!    It is this insistence upon the passion which makes men try to take the place of God, and by private revenge execute the laws of God that makes Othello significant in the tragedy of its time. Othello sees his acts as the expression of justice, worked out in the most perfect balance of deed and punishment. (172)    If the justice aspect of private revenge gave the play popularity then, what gives it fame today? Othello would appear to have a beauty about it which is hard to match – thus ranking the play high. Helen Gardner in â€Å"Othello: A Tragedy of Beauty and Fortune† touches on this beauty which enables this play to stand above the other tragedies of the Bard:    Among the tragedies of Shakespeare Othello is supreme in one quality: beauty. Much of its poetry, in imagery, perfection of phrase, and steadiness of rhythm, soaring yet firm, enchants the sensuous imagination. This kind of beauty Othello shares with Romeo and Juliet and Antony and Cleopatra; it is a corollary of the theme which it shares with them.

America Needs Media Censorship Essay -- Persuasive Argumentative Media

America Needs Media Censorship Introduction In a world in which acts of heinous violence, murder or crude and shocking behavior seem to be a normal occurrence, it may lead one to wonder what has put society onto this slippery slope. How did this type of behavior come to be so acceptable and in some cases glorifiable? A careful study of society may lead to multi media as being the main cause in this changing of ideals. The modern world has become desensitized to the acts shown on television, movies, video games or printed in newspapers and magazines. Censorship must be employed if morals and decency are to be preserved. Censorship is a controversial word that has been with us since who knows when. Ancient dictators would burn books because they didn't like them and force people to believe what they did. The question I ask myself, though, is if censorship in Libraries and schools is justified. My answer is yes, and that is what I will try to convince you. Censorship is the act which helps keep the world from being so corrupt. One of the culprits of criminal behavior is T.V. violence. Violent programs may have a negative influence on those individuals who are already violence-prone, or children who are living through vulnerable periods of their development. Adult violent offenders tend to have shown certain personality features as children, ?one being they tended to have viewed violence on television.? The amount of violence on television continues to grow. ?A typical child watched on television one thousand murders and twenty five thousand acts of violence before finishing elementary school.? When displayed this often, how can people not become desensitized to criminal acts? ?By allowing this type of material to be openly exposed to the public we are endangering safety and society?s values.? Without control of what material is delivered to the masses, we cannot expect people to have a proper sense of right and wrong as they will constantly see the horrific things that happen in the false reality of the me dia and become immune to feelings of disgust toward such atrocious deeds in real life. Controlling what is viewed on television is the responsibility of the government in order to decrease violence in the real world. Pro Censorship With today?s such profound increase in violence, sex crimes, teen pregnancy, and other corrupt acts on to... ...t it takes away from our rights as an American. Without censorship we are exposing our youth to criminals favorite viewing and hobbies. The youth will become more corrupted thus giving in to more criminal activities. If you do not support censorship then you are supportive in the act of making our youth into criminals. If we do not expose our youth to the evils in the world then how do they know right from wrong when they run into it? If we do not show them what effects drugs, sex, and violence can have on them then they will not know what is the harm in those things. If we show a kid, on TV a person that got shot and the sadness it brings to that person?s family or other love ones then they will be more likely feel sadden themselves, or at least angered by the gunman. Censorship has many pro?s and con?s to it, many people disagree with it, and many support it. The debate on censorship will go on forever without ever being resolved. In this day of age censorship is more of a choice with programs on TV, Internet, and even Video Games that allow to block ones son or daughter from viewing. Censorship is a controversial word that has been with us far back as we can remember.

Conflict Resolution Paper Essay

People deal with conflict every day and can choose how they handle the situation on their own terms. When dealing with a learning team in a school setting, one must count on his or her team members to accomplish his or her goals. During the duration of the course the team may encounter issues that will work against them in obtaining their goals such as lack of communication, personal interruptions, lack of commitment to the other team members, and lack of commitment to the assignment. When these kinds of conflicts arise in the classroom the team members have to use certain conflict management techniques, use their individual strengths and eventually come to a decision as a team. The Conflict At times one may encounter the non-participator in the group. The non-participator is one who neglects his or her responsibilities to work with the team (Engleberg & Wynn, 2010). A learning team participating in a course at University of Phoenix had a group paper that needed to be completed. However, not all team members were actively participating. The majority of the group wanted to start on the assignment in the middle of week three with the exception of one individual. The group used every resource—such as the learning team forum, the phone, and e-mails on their UOPX and personal account to contact the individual. By the middle of week three the team contacted the professor to inform her about the lack of communication. A couple of days later, the professor notified the group that she had not received a reply from the absent team member. The situation became critical to the point where the professor had to take time to contact enrollment to see if the missing team member had dropped the class. It turned out that the student was enrolled. The team was in a panic to create a contingency plan to determine who would pick up the missing member’s portion. This put unnecessary pressure on the group because of the lack of communication and participation. The day before the assignment was due the missing team member contacted the group stating that his portion would be submitted by the morning of the due date. The late response was very inconsiderate considering another member of the group was going to start on the missing portion, along with completing the final revisions. The group received a lower grade because the paper was lacking in readability and flow. The group was not pleased with the results. One more team project was due by the end of the course, and the team did not want to encounter the same problem on the final project. The team revisited the learning team charter as a method of enforcing the ground rules. Conflict Resolution Teams experience conflict within and between teams. When high performance work teams experience conflict, they handle it in a way that helps build team relations and promote positive change. Using effective conflict management techniques is the most valuable resolution for the team. The group agreed that positive techniques should be used. The first technique is to understand the underlining root cause of the conflict. Communicating with one another about the issue at hand allowed everyone to move forward in a resolution to the conflict as a team. Once the team agreed to understanding what the issue was, the team agreed on a time to be signed into a group discussion forum to work on the resolution. Next, the team communicated with each other about the conflict discussion topic and focused on the ideas brought fourth rather than who was presenting them. This focus was important because it allowed the team members to feel confident with expressing individual issues and allowed members to seek other member’s points of view (Belgard, Fisher, & Rayner, 1995). One of the most important techniques was engaging in listening actively and empathetically. By listening to other members the group could build on the teams common goals and work through hard feelings, which had been interfering with an interpersonal relationship within the team. When conflict techniques are well managed, an extremely positive and productive effect can enable the team to foster continued improvements. Learning about conflict and conflict management techniques is extremely valuable to organizations, teams, and individuals. Conflicts occur at all levels of interaction—at work, among friends, within families, and between relationship partners. If it is handled well, conflict can be productive, leading to deeper understanding and mutual respect. Conclusion Teams move through various stages throughout the timeline of a project. As they move from the forming stage to the second stage of storming, it is vital to the success of the team that they utilize conflict resolution strategies if they are going to move to the norming stage and be successful. The team was trying to work through the conflict of being unable to communicate despite many efforts by the team. They utilized positive communication conflict resolution techniques to understand and work through the problem. The team reviewed their charter and stressed the importance of working together and communicating which fostered an environment of mutual respect versus bashing the teammate that had not effectively communicated in the first three weeks. Due to the problems, they ultimately turned their part of the project in late. Through the 4 R’s (Wynn, 2012): Reason- identifying the reasons for the conflict. The team worked through the conflict by seeking to understand. They made every attempt to contact the member of their team who had not been communicating and sought to understand the problem using a positive approach. Reaction-ensuring that in the nature of teamwork, they remain unbiased. The team did not assume the nature of the conflict, and instead they continued to work through the issue until they found that the member of the team that was unresponsive. Results- by maintaining communication and a positive approach to the project and monitoring the progress, the team was able to identify at a critical point that one team member was not communicating and was not demonstrating an effort to contribute to the project. The team was able to identify this and work quickly to resolve the situation. The team continued to work through the issue until the team member made contact. The team took steps after this situation to review as a team the charter and ground rules for the team to prevent this problem in the next project. It is vital to track progress and maintain communication for success. After the teammate was finally reached, the final R, which is Resolution, was achieved. References Belgard, W., Fisher, K., & Rayner, S. (1995). Tips for teams. New York, NY: McGraw Hill, Co.. Engleberg, I. N., & Wynn, D. R. (2010). Working in groups (5th ed.). Boston, MA: Pearson/Allyn & Bacon.

Cost-benefit analysis is a term that is used to refer

Cost-benefit analysis is a term that is used to refer to the process of comparing the benefits against the costs of one or more options in order to choose the alternative which is the best or the most profitable. It entails assessing all the costs and all the benefits then determining the difference. In order to decide on whether to buy locally produced products or not to buy, one needs to carry out a comprehensive analysis of the benefits as well as the costs of such a move. Examples of products that can be bought locally or imported are foodstuffs e. g. vegetables.Buying locally means buying foodstuffs and products that are produced within one’s locality. Buying locally produced foodstuffs has its costs as well as benefits. Among the benefits of buying locally produced foodstuffs against non-locally produced are that locally produced foodstuffs require less energy to produce than imported ones. (http://www. sustainabletable. org/issues/buylocal/). For instance, the supply ch ain from the farmer to the consumer is short unlike in imported items which have to undergo long distribution chains before reaching the consumers.This leads to less environmental pollution because little transportation is needed to move the produce to the consumer. Processing and transportation of produce requires a large amount of fuel. This leads to more emissions of carbon monoxide and the greenhouse gases thus environmental degradation. These are the gases that lead to global warming. (http://www. sustainabletable. org/issues/energy/). The greenhouse gases also cause direct harm to human health through emission of toxic by-products when they are burnt. Another benefit of buying locally produced foodstuffs is that fewer amounts of fertilizers are used in producing them.Since manures are heavy, they can not be transported over long distances hence are used within short distances. Imported foods would require artificial fertilizers and pesticides for their production since they ar e produced on a large scale. Large amounts of energy are expended in producing these fertilizers hence environmental degradation. Furthermore these fertilizers and pesticides have direct negative impacts on the environment in that they pollute the soil and consequently water. In addition, locally produced foods require less processing and preservation measures than the non-locally produced.Since their distribution distances are not long, locally produced foods can be accessed by consumers when they are still fresh hence do not require processing or use of preservatives. On the other hand, non-locally produced foods require processing and preservation in order to make them reach the intended destinations in usable forms. Processing requires energy thus additional costs. Since local foods do not need large-scale farms to produce, the concept of organic farming can be applied. This is opposed to non-locally produced which are technology intensive i. e.require heavy machinery and large amounts of fertilizers and pesticides to produce. Thus, in terms of energy costs, locally produced foodstuffs are more energy efficient and environmentally friendly than the non-locally produced foodstuffs. (http://www. localharvest. org/buylocal. jsp). Adopting this concept will lead to the world saving a large amount of energy that can be used elsewhere. This system is also good in that it reduces substantially the amount of greenhouse gas emissions. This is good in that effects of the gases on the environment i. e. global warming are reduced.Locally produced foods also have more benefits to the consumer than the non-locally produced. Firstly, locally produced foods can be accessed when they are still fresh hence are more nutritious. This ensures that the quality of the produce is guaranteed. Due to the fact that agricultural products are highly perishable, non-locally produced foodstuffs need processing and preservation to improve their shelf life (http://www. sustainabletable. o rg/issues/buylocal/). Due to this, their quality is not guaranteed. The preservatives also alter the nutrition of the products and can also be harmful to consumers’ health.Processing requires energy hence fossil fuels are used which lead to environmental pollution. Another reason why consumers would prefer locally produced foods to non-locally produced is that they get the products from people they recognize. Thus locally produces foodstuffs are favored to non-locally produced ones due to the above factors. The cost estimates of local foodstuffs are far less than those for non-local foodstuffs. In accordance with the above analysis, it is very cheap to produce foods locally.This is because the farmers can use sustainable production methods which have less harmful effects to the environment (http://www. localharvest. org/buylocal. jsp. ). Locally produced foods also have less energy requirements as opposed to non-locally produced ones. This is due to the fact that less transpo rtation and processing is required for locally produced foodstuffs. Based on the above facts, it is imperative to note that buying locally produced foodstuffs is much more beneficial than buying non-locally produced foods. Not only does doing this support the fight against environmental degradation but also helps improve a peoples’ health. Fresh foodstuffs are nutritious good for a healthy living.This policy would also enhance reservation of the non-renewable energy sources. This policy should be adopted because it can lead to the creation of self reliant food economies and consequently promoting food self sufficiency. REFERENCES Buy Local. Retrieved on 18th April, 2008. From (http://www. sustainabletable. org/issues/buylocal/) Sustainable Table; healthy foods. Retrieved 18th April, 2008. From (http://www. sustainabletable. org/issues/buylocal/) Local Harvest. Retrieved on 18th April, 2008. From (http://www. localharvest. org/buylocal. jsp