Concept of food allergy Definition: “Food allergies are the body ’s abnormal responses to harmless foods; the reactions are caused by the immune system ’s reaction to some food proteins” (medical-dictionary). Associated terms: food hypersensitive‚ anaphylaxis‚ irritant‚ food intolerance Population: children Food allergy is human’s immune system overreacting to certain food substances. The food allergy reaction causes different physical symptoms that occur immediately (less than 2 hours)‚ intermediately
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Franklin Yap‚ Mary Christine YouIntroduction Carboxylic acids derivatives are simply groupsof compounds that contain a carbonyl group butwith an electronegative atom attached to thecarbon. The difference in the structure leads to amajor change in reactivity. The reactions of thesegroups of compounds involve nucleophilicsubstitution. Although there are abundant kindsof carboxylic acid derivatives‚ the experimentonly focuses on the common ones: acid halides‚acid anhydrides‚ esters and amides.Carboxylic
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What is sleep? Sleep can be described in many different ways‚ but that does not mean that all of the definitions are correct. Sleep is a periodic‚ natural loss of consciousness where eyes are closed‚ nervous system relatively inactive‚ and muscles are relaxed. One sleep cycle is approximately 90 minutes.There are 4 different stages of sleep. The first 3 stages of sleep are called Non-REM stages. Non-REM stages are the stages where there is no rapid eye movement. Then the last stage is REM sleep where
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What and why is Forensic Psychology Important in Legal Proceedings? Beth Velez Southern New Hampshire University Justice 101-Introduction to Criminal Justice Forensic psychology is an important part of the legal system‚ dating back to 1921. I plan to show in my paper just how forensic psychologists conduct their assessments‚ the implications on what the assessment and testing shows‚ and how it can benefit not only the defendant‚ but society as well. Forensic psychologist can show if a person is
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w w ap eP m e tr .X w om .c s er SYLLABUS Cambridge IGCSE® Cambridge International Certificate* Chemistry 0620 For examination in June and November 2014 *This syllabus is accredited for use in England‚ Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate. University of Cambridge International Examinations retains the copyright on all its publications. Registered Centres are permitted to copy material from this booklet for their
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The purpose of this experiment was to perform a wittig reaction‚ the horner-emmons wittig specifically‚ reacting an aldehyde with an ylide to make an alkene. This particular variation of the wittig reaction has several advantages: It gives only the trans product; it uses a much milder base that is easier to handle; and it gives a water soluble byproduct which is easy to separate from the product. The reason that these advantages occur is a change in the structure of the ylide. Instead of a tripheylphosphine
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shiny but it quickly tarnishes due to the fact that the metal reacts quickly with oxygen or water.The shiny surfaces of Sodium quickly tarnishes more quickly than Lithium and Potassium more tarnishes more quickly than Lithium.This shows that the reactivity increases as we move down the group. Figure 1 Elements Melting point Boiling point Thermal Conductivity Electrical Conductivity Lithium 182 1342 85 W/(m k) 1.1 *107 S/m Sodium 100 882.8 140 W/(m k) 2.1
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Formaldehyde as a model protein crosslinking reagent. Understanding protein-protein interactions is becoming a vital study for application in the development of new age pharmaceuticals and utilization in diagnostic models. The overall aim is to gain an insight into the function and role of individual proteins with specific interest on how they react in cells‚ (Toews et al. 2008). The biopharma industry in Ireland is becoming a booming success for the economy therefore a complete understanding of
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that protects the foil from further corrosion.[2]Different oxides of the same element are distinguished by Roman numerals denoting their oxidation number‚ e.g. iron(II) oxide versus iron(III) oxide. 1 Formation 2 Structure 2.1 Molecular oxides 3 Reactivity 3.1 Reduction 3.2 Hydrolysis 4 Nomenclature and formulas 5 Examples of oxides 6 See also 7 References Formation Main article: corrosion Due to its electronegativity‚ oxygen forms stable chemical bonds with almost all elements to give the corresponding
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Attention should be paid to possible cross-reactivity of certain drug groups. Data have been reported regarding genetic predisposition to drug hypersensitivity reactions‚ which are strongly associated with the major histocompatibility complex. (11) The pathogenesis of SJS/TEN is not fully understood
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