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What Is Allergic Conjunctivitis? What Causes Allergic Conjunctivitis?
Most people get allergic conjunctivitis when their eyes come into contact with an allergen - a substance which makes the body"s immune system overreact. The eye becomes sore, inflamed and sometimes painful. Symptoms occur because the overreacting immune system makes the body release histamine and other active substances by mast cells - these cause dilation of blood vessels (blood vessels expand, widen), which irritates the nerve endings and causes increased secretion of tears.
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USDA And HHS Praise Guidelines For Foodborne Disease Outbreak Response
Agriculture Secretary Tom Vilsack and Health and Human Services (HHS) Secretary Kathleen Sebelius commended the Council to Improve Foodborne Outbreak Response (CIFOR) for the new Guidelines for Foodborne Disease Outbreak Response. These guidelines assist local, state and federal agencies in preventing and managing foodborne disease outbreaks through planning, detection, investigation, control and prevention. Drugshop to buy zoloft online and other pills.
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Oxoid Tests Allow Rapid Diagnosis Of The Majority Of Causes Of Gastroenteritis
Oxoid, a world leading microbiology brand, is pleased to announce that the ProSpecT™ range of qualitative enzyme immunoassays has recently been extended to include test kits for Adenovirus, Astrovirus, Clostridium difficile, Campylobacter, Cryptosporidium, Entamoeba histolytica, Giardia, Giardia/Cryptosporidium, Rotavirus, Shiga Toxin Escherichia coli.
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Shedding Light On Social Brain Development

The capacity to figure out what others are thinking and what they mean is an ability unique to people that"s central to our lives. A new study on the neural mechanisms that govern these abilities sheds light on the relation between how people and groups interact, on the one hand, and how the brain develops and functions, on the other. The study, in the July/August 2009 issue of the journal Child Development, was conducted by researchers at Queen"s University at Kingston in Ontario, Canada. In the preschool years, children develop social skills by learning how to understand others" thoughts and feelings, or their theory of mind. In most children, theory of mind changes over time so they come to understand that others" thoughts are representations of the world that may or may not match the way the world actually is. In their study of EEGs of 29 4-year-olds, the researchers found that these changes are related to the functional development of two parts of the brain - the dorsal medial prefrontal cortex and the temporal-parietal juncture - that govern similar understanding in adults. "For a while now, we have known that specific brain areas are used when adults think about others" thoughts," according to Mark A. Sabbagh, associate professor of psychology at Queen"s University at Kingston and the study"s lead author. "Our findings are the first to show that these specialized neural circuits may be there as early as the preschool years, and that maturational changes in these areas are associated with preschoolers" abilities to think about their social world in increasingly sophisticated ways. "In helping us understand how the typical social brain develops, the findings also provide clues as to what happens when social reasoning is impaired, as occurs in autism," Sabbagh added. Summarized from Child Development, Vol. 80, Issue 4, Neurodevelopmental Correlates of Theory of Mind in Preschool Children by Sabbagh, MA, Bowman, LC, Evraire, LE, and Ito, JMB (Queen"s University at Kingston). Copyright 2009 The Society for Research in Child Development, Inc. All rights reserved. Sarah Hutcheon Society for Research in Child Development


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