To address this question: “Propose a possible explanation on why the light caused depolarization of the off-center ganglion cell?” we first have to describe the structure of the center -surround in the receptive fields of retinal. In the receptive field‚ there are cone photoreceptors that communicate with On and Off center bipolar cell and finally On and Off center ganglion cells that carry the action potential to the cortex. When light comes to the retina (eyes) it causes closing of channels in
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Communicable Disease Communicable diseases have been a plague on mankind since the beginning of history. Communicable diseases can instill fear‚ panic‚ and public outrage. The outcry for communicable disease control‚ prevention‚ and eradication has been the driving force behind physicians and organizations. Understanding the communicable disease‚ the origin‚ the causation behind the spread of the disease‚ and how to prevent further spread of the communicable disease is the intent of these physicians
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COMMUNICABLE DISEASES Communicable diseases are those that are spread from one person to another person‚ from animal to animal‚ or from animal to person‚ or vice versa. It is likely that everyone will come down with a communicable disease at some point in their lives. It is important to learn about the causes of communicable diseases and ways to prevent their spread. For example‚ some may say that HIV is caused by sexual contact. This is not true. It is simply the way it is spread. Causes of communicable
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infectious diseases are particularly tragic because they are preventable and treatable. Not surprisingly‚ the poorest and most vulnerable are the most severely affected by infectious disease. Infectious diseases are a major cause of death‚ disability and social and economic turmoil for millions around the world. Poverty stricken countries lack access to health care. Reports show that in nations with the lowest economic status the causes of death are primarily infectious and nutritional diseases. Respiratory
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Prevalence of Zoonotic Diseases (T.B and Brucellosis) in Animals Domesticated in Pishin District Research Report submitted to & For the complete fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) In BIOTECHNOLOGY AND INFORMATICS By AEMAL TAREEN Supervisor Dr. DOST MUHAMMAD BALOCH Faculty of Biotechnology and Informatics‚ BUITEMS‚ Quetta Co-Supervisor PROFESSOR Dr. MUHAMMAD AZAM KHAN KAKAR Faculty of Biotechnology and Informatics‚ BUITEMS
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I learned to never be quick to judge a person when you never know what a person is going through! Gaucher disease is a receivable inherited lysosomal storage disease. This characterization makes tone by bruising of bones because they are weak and derive of pain. The sickness that deliberates fatigue‚ anemia that undergoes pain‚ low blood platelet count that will be harder flowing‚ and growth of the liver and spleen. These visceral and neurologic symptoms are causing disruption of the lysosomes because
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deaths due to harsh fighting‚ World War I was known for many reasons for soldier’s deaths. It was very hard for soldier’s to get the type of medical care and technology that we have today‚ and difficult to be cured. In this case‚ during World War I diseases were very common and were spread thoroughly. Fighting in the WWI meant being high at risk of death. Soldiers were constantly doing life threatening duties. Deaths numbers were so intense that “after a year and a half of fighting‚ more than 53
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Citrus Diseases Citrus Canker Citrus canker is a highly contagious bacterial infection of citrus trees causing yellow halo-like lesions or scabs on the fruit‚ leaves and twigs of citrus trees. Severe infections can cause leaf loss‚ blemished fruit‚ fruit drop and die back. The canker bacterium spreads easily and quickly on air currents‚ insects‚ birds and on humans by means of clothing and infected implements. There are a variety of sprays designed to protect against infection including using
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Human Disease Several scientific terms are relatively easy to define‚ others tend to be more difficult; “health” and “disease” fall under the latter category. Many suggest that “disease” is merely a disorder of a system’s normal functions while “health” is the absence of disease. On the other hand‚ could a person whose bodily systems are functioning properly but who is unhappy or depressed be considered healthy? Can an alcoholic or drug-addict whose habit has not as yet caused any physical harm
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Alzheimer’s Disease Alzheimer’s Disease is a progressive and irreversible brain disease that destroys mental and physical functioning in human beings‚ and invariably leads to death. It is the fourth leading cause of adult death in the United States. Alzheimer’s creates emotional and financial catastrophe for many American families every year‚ but fortunately‚ a large amount of progress is being made to combat Alzheimer’s disease every year. To fully be able to comprehend and combat Alzheimer’s
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