Asthma :: essays research papers fc

Asthma is a respiratorydisorder marked by breathing difficulty caused bytemporary narrowing of the bronchi, the airwaysbranching from the trachea to the lungs. Attacks usually are brought on by allergic reaction toANTIGENS such as grass and tree pollens, moldspores, fungi, animal dander, and certain foods exactlymay also be caused by chemical irritants in theatmosphere or by infections of the respiratorytract. Susceptibility to an asthma attack is basedon hyperactivity of the bronchial muscles, whichconstrict on exposure to one or another of theseagents. Episodes of asthma variegate widely in severityand may last from a few minutes to several(prenominal) days.They may begin at any age but usually occur inchildhood. In children, asthma often is associatedwith eczema, a skin inflammation that may reflectthe tendency of the child to develophypersensitivity reactions. The attacks usuallybecome less frequent and less severe over theyears and disappear in about half of all affectedchild ren before adulthood. In one form of asthma,called intrinsic asthma, however, the attacksbecome less frequent and less severe, butrecovery between them is less complete. Thebronchi in such patients become chronicallynarrowed, causing a progressive loss of capacityfor physical exertion. The prevalence of asthma isonly about 1 or 2 percent ecumenical but variesgreatly from country to country. In the UnitedStates, asthma affects about 6.9 percent ofchildren. Typically, an asthma attack begins withinminutes after exposure to a triggering agent.Symptoms include a sensation of tightness in the titty, coughing and wheezing, and difficulty inbreathing. Persons having attacks usually find itmore difficult to exhale then inhale, which causesoverinflation of the chest and impaired lungfunctions. The breathing difficulty is alleviatedsomewhat by leaning forward and supporting thetrunk with the arms on some object. Attacks thatlast several hours or more, even several days,despite treatment are called status asthmaticus.Patients with this condition develop a rapid pulseas the heart attempts to slump for the lack ofoxygen in the blood by beating faster. They alsodevelop signs of exhaustion and dehydration. On along-term basis, asthma usually is managed bydetermining the agent responsible for the attacksso that the patient can avoid it. When avoidance ofallergens is not feasible, patients can sometimes be

herody Free Essays on Homers Odyssey - Heroic or Disloyal Men? :: Odyssey essays

The Men of The Odyssey Heroic or Disloyal?   In Homers The Iliad, Achilles shield is exposit in great depth. On one portion of the shield, there is fashioned a scene with a golden herd of straight-horn cattle. They are being led on a fruitful riverside by a group of four golden shepherds and nine hounds. Two lions approach the herd, and mutilate a mighty bull. The shepherds discount do nothing but watch, as they dare not approach the predators. This scene is crucial in understanding the behavior of Odysseus men in the subsequentness to this epic, (The Iliad, p. 227). In Homers The Odyssey, Odysseus narrates a portion of the epic concerning his journeys and trials during his long quest home for Ithaca. Throughout these adventures, his men play an important role in determining the fate of the entire crew of his ship. At some points, he portrays them as being heroic, while at others, they seem barbaric in nature and disloyal to their captain. These qualities of his men, a nd certainly others, are outstrip exemplified through the episodes involving the Cyclopes and the Cattle of the Sun God. Before comparing and contrasting the actions of the men during these two mini-stories, a ethical understanding of the inhabitants of the two lands is necessary. The Island of the Sun God, Helios, is referred to as the worlds delight, as it provides habitation for this gods limitless flocks of cattle. Conversely, the Island of the Cyclopes inhabits primitive one-eyed, half-man, and half-bestial beings, (p. 218). While Helios island is described as noble, almost as golden as the sun itself, the land of the Cyclopes is illustrated as a land filled with wild vegetation, and neglected by its undemocratic and uncivilized people. This depiction of these people being poor gardeners coincides with previous evidence from this epic, and others, that this type of lifestyle being lived by the Cyclopes was looked down upon by the author, and by the gods, in particularly. The other land, therefore, is obviously blessed and considered to be holy to the gods. Soon after landing on the Cyclopes Island, Odysseus takes a team of his best men with him to explore the new wilderness. They then discover the cave of Polyphemos, your everyday, average, sheep-herding Cyclopes. Odysseus men suggest taking the vision-impaired beasts cheese and flocks and making a run low for it, but the raider of cities insists on awaiting his homecoming in an attempt to see the caveman and what he has to offer.

Who Tamed Fire First? Essay -- Exploratory Essays Research Papers

Who Tamed Fire foremost? The farther back in time we explore, the much room there seems to be for discrepancy among various theories regarding the history of the earth. One of the many disputed aspects of history concerns the nature of the relationship between humans and the environment. This piece will focus on the debate of the logical argument of first tamed fire. Was it Homo erectus or Homo sapiens? The widely accepted big come theory of evolution paints Homo erectus as no more than a smart ape, (McCrone, New Scientist, May 20, 2000, 31) with a, 15-minute culture, (McCrone, 34) incapable of manipulating his surrounding environment. Though even if we were to debate he was physically capable of accomplishing this act, McCrone explains, controlling fire simply seemed too intellectually sophisticated a feat for this creature, who were, primitive toolmakers, and showed no signs of symbolic persuasion over the next million or more years of their existence, (McCrone, 31). Under th is theory, any remains of fires from his time are written off as shrub fires, lightning strikes, and other such naturally induced occurrences. It is not until Homo sapiens comes along that humans are considered to have begun to master their environment.A recent, more scientifically based analysis of ancient Chinese fires supports this same stance that Homo erectus was not the first to tame fire. The geological analysis took place at the Zhoukoudian range in China, where an opposing theory marks the first controlled fire at 500,000 years ago by Homo erectus hands, (Wuethrich, Science Magazine, July 10, 1998). Though they confirmed acquire burnt bones from the site, there was no solid evidence to suggest the controlled use of fire, such as hearths,... ...order in our world. It gives us a past, present and future. clipping also offers us a sense of perspective, so that we can make insights and connections, decide what is true and what is false, what is valuable and what is inconse quential. In this regard, the debate over the time and origin of the first tamed fire is an effective illustration of the ways in which time affects our perception of human kind and its relationship with the environment. Which theory of origin we last choose to believe is particularly significant in that it gives insight into the way in which we view ourselves in relation to our past.Sources CitedDid Homo Erectus Tame Fire First? Balter, Michael. Science. June 16, 1995.Fired Up. McCrone, John. New Scientist, May 20, 2000.Geological Analysis Damps Ancient Chinese Fires. Wuethrich, Bernice. Science Magazine, July 10, 1998.

The Psychodynamic Model of Abnormality Essay -- Papers Psychology

The Psychodynamic Model of Abnormality The psychodynamic framework of abnormality is useful to an extent. However it has many another(prenominal) weaknesses. The psychodynamic model of abnormality was initiated by Sigmund Freud. Sigmund Freud was very interested in hysteria. This is the manifestation of physical causes. He became convinced that unconscious mental causes were responsible not salutary abnormality but also normality. Freud developed Psychoanalysis. This is a set of techniques for treating the unconscious causes of mental disorders and built up a psychoanalytic theory of how human constitution and abnormality develop from childhood. His psychoanalytic approach had a great impact on psychology and psychiatry and was developed by other psychodynamic theorists. Psychoanalysis had a very fixed set of assumptions. One of these is the unconscious processes where many impo rtant influences on behaviour come from a part of the mind we have no awareness of called the unconscious. Another assumption is psychodynamic conflict. Different parts of the mind are in constant struggle with each other and the consequences of this are important in understanding behaviour. Freud also believed that behaviour is motivated by sexual and aggressive drives. The drives create psychic energy that builds up and create tension and anxiety if it cannot be released. Another assumption is development where personality is shaped by relationships, experiences and conflict, particularly during childhood. Freuds psychoanalysis is probably the most important psychodynamic theory. His ideas developed a... ...century. It has had a pregnant effect on a wide range of disciplines such as anthropology, womens studies and theology. Also, the sharp distinction between abnormality and normality of the biological model is ignored. Doing this, it has created m ore sympathy for people with psychological disorders. Psychoanalysis is more humane with its focus on talking as opposed to drugs, shock therapy or read/write head surgery. It also has the power to enhance our understanding of ourselves and from the number of people who testify how it has helped them in their own lives. In conclusion, the psychodynamic model is useful as it is still organism used today by professional psychiatrists and works with many people. However, there are a lot of weaknesses to outweigh the positives, which means that the model can be seriously questioned.

Nature and Popular Culture :: essays research papers

As artwork has become more accepted in popular culture, we begin to see more and more creative artists portray their opinions of what is really going on in todays society. By the rights grant to us based on the foundation of this country, there is the right to release opinions of how the world is viewed. A major part of this is what goes on in the atmosphere of which we live. The surround plays a vital role in the daily lives of citizens of the world and what happens to our environment in the hereafter will continue to have lasting affects on future generations to come. Through artwork, the advertising industry has been releasing more frequent campaigns of what is going on in the world we live with an aspect of how nature is surviving as people are as well. There is an ongoing relationship that we rely on nature just as nature sometimes would seem to gibe into our lives more than we would begin to realize. There are usual two sides to every story and it seems that either one is o f nature or one is against nature. This is evident in some aspects of television, movies, advertising, and music. I have found four particular artifacts that exemplify how modern art is of nature. I believe that a portion of this idea is attracting business. In this age of internet commerce and new technology being released more frequently than in the past, there might be a small concern that people will forget about the importance of nature and rely too heavily on technology. Due to this there has been an increase in the core of advertisements that use themes of nature to market their products and services.In a recent advertisement campaign of Nike athletic footwear, there is a portrayal of gazelles sprinting through an empty African field. Through the course of the run the gazelles change into men and women sprinting in a marathon race with Nike place on their feet. Nike is trying to sell their running shoes by stating that if you buy their product you will have natural speed l ike these swift animals.

Nature and Popular Culture :: essays research papers

As artwork has become more accepted in popular culture, we begin to see more and more creative artists portray their opinions of what is really going on in todays society. By the rights apt(p) to us based on the foundation of this country, there is the right to release opinions of how the world is viewed. A major part of this is what goes on in the atmosphere of which we live. The environs plays a vital role in the daily lives of citizens of the world and what happens to our environment in the approaching will continue to have lasting affects on future generations to come. Through artwork, the advertising industry has been releasing more frequent campaigns of what is going on in the world we live with an aspect of how nature is surviving as people are as well. There is an ongoing relationship that we rely on nature just as nature sometimes would seem to sufficient into our lives more than we would begin to realize. There are usual two sides to every story and it seems that eithe r one is of nature or one is against nature. This is evident in some aspects of television, movies, advertising, and music. I have found four particular artifacts that exemplify how modern art is of nature. I believe that a portion of this idea is attracting business. In this age of internet commerce and new technology being released more frequently than in the past, there might be a small fear that people will forget about the importance of nature and rely too heavily on technology. Due to this there has been an increase in the get along of advertisements that use themes of nature to market their products and services.In a recent advertisement campaign of Nike athletic footwear, there is a portrayal of gazelles sprinting through an empty African field. Through the course of the run the gazelles change into men and women sprinting in a marathon race with Nike shoe on their feet. Nike is trying to sell their running shoes by stating that if you buy their product you will have natur al speed like these swift animals.