Tell Me About Blood Essay Example for Free

Tell Me About Blood Essay In this paper I will answer some questions about blood and related issues. Some of the questions I will answer are: what is the significance of a lower than normal haematocrit? what is erythropoiesis?why would the level of leukocytes be higher in an individual who has been infected with a parasitic disease. In regions where malaria is endemic, some people build up immune resistance to the malaria pathogen. Which WBCs are responsible for the immune response against pathogens? How do they function? A 13 year old is studying blood in school, and has asked some questions that havent been answered in class. I will answer these questions In a way that a young teenager would be able to understand. What is the significance of a lower than normal hematocrit ? What is the effect of a bacterial infection on the haematocrit? A test called haematocrit is the testing of the proportion of red blood cells compared to all blood cells in a certain volume. A lower than normal finding on a hemotocrit could mean anemia, a large number of white blood cells due to illness infection Leukemia, Lymphoma or other white blood cell disorders, vitamin or mineral deficiency or recent blood loss. The effect of a bacterial infection on the hemotocrit would cause a decrease of the haematocrit. Compare the development of lymphocytes with the development of other formed elements. There are two kinds of lymphocytes, B lymphocytes and T lymphocytes. Lymphocytes begin in the bone marrow, if they stay there then they are B lymphocytes, if they move to the thymus they are called T lymphocytes. The other formed elements of blood start with a mixture of  plasma that develop through erythrocytes and the platelets are formed by megakaryocytes exploding. What is erythropoesis? Which factors speed up and slow down erythropoesis? Erythropoesis is the process of making new red blood cells. This begins in red bone marrow. Proerythroblasts divide several times until it reaches the end of its development, then rejects the nucleus and becomes an reticulocyte. After being released from the red bone marrow a few days later they turn into erythrocytes. Erythropoiesis speeds up when there is a lack of oxygen to body tissues and slows down when there is sufficient oxygenation throughout the bod y. Explain what would happen if a person with type B blood were given a transfusion of type O blood. If a person with type B blood was given a transfusion of Type O there will be no negative affects. Type O blood is the universal donor as there is no antigen on them that would be attacked by the anti-A antibody on the B type blood cells. During an anatomy and physiology exam your asked to view white blood cells in prepared slides of standard human blood smears. Based on the observations below what is the name and function of each WBC? A.WBC has a round nucleus surrounded by a blue halo of cytoplasm with no visible granules. This WBC is a lymphocyte. The function of a lymphocyte is an immediate response of the immune system to defend against known pathogens ASAP. B.WBC contains dense blue purple granules that hides the nucleus. This WBC is a basophil. Their function is to store histamine and are involved in a response to inflammation. C. WBC has a u-shaped nucleus and a bluish cytoplasm with no visible granules. This WBC is called a monocyte. The function of a monocyte is much the same as the neutrophil, they eat invading pathogens to help protect the body. Monocytes also eat dead and damaged cells to keep the body healthy. D.WBC contain small, pale lilac granules and a four lobed nucleus. This WBC is a neutrophil. The function of neutrophils are to eat bacteria and some other foreign material. The membrane of the neutrophil surrounds the invading bacteria and then destroy it. E.WBC contains red orange green any two lobes nucleus. This WBC is an eosinophil. Eosinophils have a few functions, they are part of the inflammatory process, the trap substances, kill cells, and have anti-parasitic and bactericidal activity. Why would the level of leukocytes be higher in an individual who has been infected with a parasitic disease? Leukocytes help defend the body from infections, as someone is getting sick from a disease leukocytes target the threat to keep the body healthy and to destroy the threat. When a doctor looks at the results from a complete blood count of CBC and see that there is an elevation of white blood cells he knows that there is an infection or immune issue. In regions where malaria is endemic, some people build up immune resistance to the malaria pathogen. Which WBC is responsible for the immune response against pathogens? How do they function? Lymphocytes are responsible for the response against pathogens. First you must be exposed to the pathogen, after that the lymphocytes know what to look for. When you are re exposed to the disease your body is prepared for it and keeps you from getting sick or at the very least from getting the full blown sickness. What is the function of prothrombinase and thrombin in clotting? Explain how the extrinsic and intrinsic pathways of blood clotting differ. The function of prothombinase is to turn into prothrombin in to thrombin to make blood clot, which then stops blood loss. The difference between extrinsic and intrinsic is where the chemical connections comes from. The extrinsic bond happens outside of the damaged blood vessel when blood seeps into other tissue. The intrinsic bond happens inside of the damaged blood vessel. With both pathways after the chemical bond is triggered a blood clot begins to form and stop the bleeding. This paper explains a few questions about blood in a language that a young teenager should be able to understand. The questions answered explain about the different white blood cells, what they look like and their functions. This paper also explains about blood transfusions and clotting. References basophil (blood cell) Encyclopedia Britannica. (n.d.). Retrieved June 21, 2014, from http://www.britannica.com/EBchecked/topic/55316/basophil Blood Types Chart | Blood Group Information | American Red Cross. (n.d.). Retrieved June 20, 2014, from http://www.redcrossblood.org/learn-about-blood/blood-types The clotting process World Federation of Hemophilia. (n.d.). Retrieved June 21, 2014, from http://www.wfh.org/en/page.aspx?pid=635 Complete Blood Count (CBC): Healthwise Medical Information on eMedicineHealth. (n.d.). Retrieved June 20, 2014, from http://www.emedicinehealth.com/complete_blood_count_cbc-health/article_em.htm erythropoiesis definition of erythropoiesis in the Medical dictionary by the Free Online Medical Dictionary, Thesaurus and Encyclopedia. (n.d.). Retrieved June 20, 2014, from http://medical-dictionary.thefreedictionary.com/erythropoiesis Erythropoiesis-stimulating agents and other methods to enhance oxygen transport. (n.d.). Retrieved June 20, 2014, from http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2439521/ Hematocrit test Why its done Tests and Procedures Mayo Clinic. (n.d.). Retrieved June 20, 2014, from http://www.mayoclinic.org/tests-procedures/hematocrit/basics/why-its-done/prc-20015009 Lymphocytes and the Cellular Basis of Adaptive Immunity Molecular Biology of the Cell NCBI Bookshelf. (n.d.). Retrieved June 21, 2014, from http://www.ncbi.nlm.nih.gov/books/NBK26921/ What is an Eosinophil? | Definition Function | CCED. (n.d.). Retrieved June 21, 2014, from http://www.cincinnatichildrens.org/service/c/eosinophilic-disorders/conditions/eosinophil/ What Is the Function of Monocytes? (with picture). (n.d.). Retrieved June 21, 2014, from http://www.wisegeek.com/what-is-the-function-of-monocytes.htm White blood cells Google Search. (n.d.). Retrieved June 21, 2014, from https://www.google.com/search?es_sm=93biw=1366bih=667tbm=ischsa=1q=White+blood+cellsoq=White+blood+cellsgs_l=img.33414.9913.0.10016.20.11.0.0.0.0.0.0..0.0.01c.1.47.img..20.0.0.xIhwmJNe2D8 White Blood Cells. (n.d.). Retrieved June 21, 2014, from http://peer.tamu.edu/curriculum_modules/OrganSystems/module_1/whatweknow 5.htm

Symbolism in A Streetcar Named Desire by Tennessee Williams :: Tennessee Williams, A Streetcar Named Desire

Tennessee William's novel, A Streetcar Named Desire, is the story of the brutish Stanley Kowalski and his meek wife Stella, a New Orleans couple whose lives are turned upside down with the arrival of Stella's neurotic, Southern belle sister Blanche who is immediately drawn into a battle of wills with Stanley. Blanche's childlike helplessness, romantic desires, and pretensions to aristocracy completely collapse when Stanley's ruthless exposure of her past brings about Blanche's final disintegration. When reading the scenes, the symbolism struck me as the most prominent aspect of the novel. Williams uses symbolism throughout the novel to progress the plot of the story, character growth, and foreshadowing of future events in the novel. In this essay, I have chosen a few symbols to discuss how Williams uses them in his novel. In addition, one symbolic event will show evidence of foreshadowing a future event in the novel. Throughout the novel, Williams has referred to animalistic behavior and virtues. He presents New Orleans as a jungle; a metaphor Williams uses to portray the primitive, sub-human nature of its inhabitants. Stanley epitomizes this as he represents the brutes of society that dominate in this jungle. Williams conveys both imagery and dialogue to portray this notion throughout the novel as Stanley performs brutish acts and declares, "I am the king around here, so don't you forget it." Beating his wife Stella is one significant act that portrays Stanley's brutish characteristics. In addition, throughout the novel Stanley presents himself as a self-important brute, driven by the force of desire that enables him to thrive in the jungle that really is his "Elysian Fields." Examining the climax, it is apparent that the animalistic predisposition are out in full force in Stanley as he parades around in a "vivid green silk bowling shirt" and "brilliant silk pajamas." Therefore, the rape is a result of an act of brutal desire in its most futile form, stemming from animal impulses and hostility that propelled the two towards each other. The rape is an act in which each character is at the peak of their battle, which is to be the "final hand" in the game of desire. Furthermore, a symbolic event that I believe foreshadows the rape is when Stella pours Blanche a drink, a coke with a shot of whiskey. It overflows and spills foam on Blanche's dress. Upset by being dirty and violated, Blanche screams with a piercing cry about stains on her pastel-colored dress.

Homicide in Puerto Rico Essay

Crime is not a new phenomenon in any society and it is the duty of the various sections or branches of the criminal justice systems to ensure that their citizens are safe. Peace and harmony are among the major goals of any criminal justice system. Homicide which refers to the cessation of the life of a person by another could be in two major forms; the planned or well premeditated also termed as murder or due to some circumstances or at the spur of the moment or manslaughter. Various theories of crime have been coined to explain crime and delinquency in the society and they range from psychological, biological, conflict, social disorganization, social learning as well as feminist theories of crime. (Burke R, 2005). The psychological and biological theories tend to explain why specific individuals tend to commit crime and are inappropriate when explaining trends of crime in a given region. Feminist theories also tend to be inclined on the role of gender in explaining crime and may also not be appropriate in explaining increasing crime rates in general. The social conflict, social disorganization, social learning theories can be used to explain the homicide rates in Puerto Rico. An exploration of the various theories of crime places the criminal justice system in a better position to respond to crime in the society with improved prevention as well as sanctioning strategies. Strain theory The Merton’s theories of crime also known as the strain theories argue that deviance in the society is as a result of a discrepancy between the societal or culturally set aspirations and the legally acceptable means to realize them. In this regard, the society is blamed for the crime rates within its jurisdiction. Setting goals for her members and then failing to offer the appropriate or institutionally acceptable means to realize them leaves the members of the society in awkward or confused situation. A clear illustration is how Americans have been socialized to embrace the ‘American Dream’ where attaining wealth and material gain are highly venerated. However, the same society fails to resolve the constraints that would deter the Americans from realizing this goal forcing them to behave in various ways that may not be in line with the expectations of the society. The Merton strain theory can best be applied to explain crime rates in poverty stricken regions where out of frustrations the poor behave in different ways as they try to meet the expectations of the society. (Clinard M, 1967). According to Merton’s theory, some act as ‘conformists’ and accept the societal set goals and values as well as the institutionally acceptable means of realizing them. Such people pose no threat to the society in as far as crime and deviance is concerned. Others are viewed as ‘ritualists’ who reject the set goals by the society though they accept or rather respect the institutionally acceptable means of attaining the set goals. Others are deemed as ‘rebels’ who reject the societal goals and values as well as the legitimate means of realizing the said goals. These include the drug and alcohol addicts who result into this habit due to the realization that they cannot attain the societal set goals. To Merton, the ‘innovators’ are those who accept the societal or culturally set aspirations but reject the socially acceptable means of realizing these goals. Burke R. 2005). The innovators are a threat to the societal peace and harmony as they may embrace criminal approaches to attain the set goals. They include drug traffickers as well as prostitutes who indulge in these activities as a way of attaining wealth and material gain as has been stipulated in the ‘American Dream’. Modern strain theorists have expounded on Merton’s ideology to embrace other culturally set expectations for instance those affecting the young people that are not necessarily related to wealth or material gain. In other words, they adopt a social aspect in addition to the economic aspect coined by Merton. These include the desire for academic and sports excellence as well as fame. To them, one’s relations also plays a vital role in determining people’s behavior where those who interact with people favoring deviant behaviors will tend to be deviant while those favoring conformity will not be a security threat to the society. The general strain theory as coined by Akers can be used to explain why the young people engage in drugs and this could further be associated with crime such as homicides. Strain in this context is associated with depression, disappointment, fear and anger which trigger the desire to revenge against the society or which lead to the adoption of coping mechanisms that favor criminal behavior rather than conformity to the societal norms and values. Bearing in mind the poverty conditions in Puerto Rico this theory can be applied to explain the escalating homicide rates in the region. The argument here is that some people will engage in drug trafficking business as a way of accumulating wealth and material gain and can be viewed as ‘innovators’. On the other hand, some will engage in drug consumption and abuse due to their desperation or as an act of revenge against the society. Drug abuse will be rampant for the young people who are likely to engage in gangs favoring the use of drugs after dropping out of schools. Homicide rates will also be higher among the gang members and this is made easier by the higher availability of arms. (Peffer R, 2002). The social learning theory of crime The social learning theory of crime can also be used to explain crime and delinquency in society. Unlike the biological theories that blame criminal behavior on people’s biological makeup, this argues that crime is not an inherent behavior but a learnt behavior. This theory was coined by Ronald Akers and was an improvement of Sutherland’s differentiation theory where he argued that crime portrays learning as an interactive relationship whose success revolves around effective communication. It is thought to take place among people with intimate or close relationships such as family and friends. To learn crime, individuals learn the techniques used from those with the experience. They also get to learn of the motives or drives of committing the crimes they engage in. Another vital aspect learnt in this process is the rationalization as well as attitudes that favour crime. Sutherland suggests that the period or time of contact is quite influential in determining the associations made. Differential associations tend to vary in frequency, duration as well as their intensity. People learn the motives of crime from the definition of legal codes and behaviour is termed as favourable or unfavourable and that which is defined as favourable will be highly embraced while the unfavourable will unfavourable will be avoided. (Sutherland E and Cressey D, 1970). The belief of this theory is that people become delinquent due excess definitions that favour the violation of law rather than adherence to it. In other words meanings are awarded and respected and will vary with varying conditions. Akers developed Sutherland’s work by emphasizing on the role of imitation as well as reinforcement in learning crime. This theory can be used to explain the homicide rates in Puerto Rico where peer influence plays a role in encouraging drug use which in turn triggers indulgence in crime. Interactions with people who define drug use as a favorable act will see the young people engage in drugs to fit in. With time they will rationalize their behavior and after imitating the other gang members they will internalize the use of drugs. Such people are more likely to engage in crime to finance their habits and some may result to drug trafficking. People under the influence of drugs may have an impaired reasoning or judgment capacity and they may comfortably murder those they perceive as a threat to their existence in business. Others may kill in the process of committing other crimes such as robbery with the aim of financing their drug addiction. (Montalvo-Barbot A. , 1997). A limitation of this theory is that it ignores the probability of attracting conformity thus causing no threat to the society’s security. This theory also ignores the role of individual reasoning or decision making process. Some people are not taught to kill and others engage in drugs and eventually crime due to personal reasons rather than being influenced by peers and family members. The social learning theory of crime also fails to offer adequate explanations regarding the origin or crime but only discusses how crime is spread. Another critic is that it is single sided in the sense that it focuses on those who are non criminals. It also assumes that all people have an equal access to criminal and anti criminal behaviour. (Akers R, 2000).

Goffman s Dramaturgical Perspective An Influential...

For Erving Goffman and the Symbolic Interactionists generally, a self is not so much a singular and fixed entity as a contingent response to a social context. (i) Discuss this statement with particular reference to Goffman’s dramaturgical perspective, and (ii) Explain how this perspective helps us to understand embarrassment. Introduction Erving Goffman is considered the most influential American Socialist of the twentieth century. His ability to observe individuals and make sense of those observations is what he became most recognised for. His research focuses primarily on the sociology of everyday life, social interaction, the social construction of self, framing of experience and social stigmas. He is best sighted for his study of symbolic interaction. Published in 1956, ‘The Presentation of Self in Everyday Life’ focuses on the subject of the self not so much as a singular and fixed entity but as a contingent response to a social context. It was the first book published which identifies face to face interaction as a concept of social studies. Through his writings Goffman uses theatrical imagery in order to depict the fundamentals of human and social interaction. The core principles derived from this are referred to as ‘The Dramaturgical Model of Social Life. This was a term developed by Goffman, which uses the metaphor of the theatre to better our understanding of social interaction. It illustrates how we as individuals in our everyday lives are referred to as actors