Alkali Metals Introduction Alkali metals refer to six elements belonging to the Group IA of the long form of the Modern Periodic Table‚ viz. Lithium (Li)‚ Sodium (Na)‚ Potassium (K)‚ Rubidium (Rb)‚ Cesium (Cs) and Francium (Fr). Fr is a radioactive element. These elements are called so because they form strongly alkaline oxides and hydroxides. Electronic Configuration of Alkali Metals Each of the alkali metals has one electron in their outermost (valence) shell‚ which is just outside an inert
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Microbiology Enzymology and Catalytic Metabolism Hereditary Fructose Intolerance (HFI) Hereditary Fructose Intolerance (HFI) is a genetic condition people are born with‚ usually without previous family history. Individuals with this condition have difficulty metabolizing fructose and/or foods containing fructose. The individuals liver and kidneys attempt to use this sugar for energy and due to the incomplete breakdown of fructose‚ toxic byproducts are produced which eventually leads to serious
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SYNOPSIS: *INTRODUCTION *FOOD SOURCES *ORAC IN FOODS *VITAMINS *CAROTENOID TERPENOIDS *FLAVONOIDS *PHENOLIC ACIDS AND THEIR ESTER *OTHER NONFLAVONOID PHENOLICS *POTENTIAL ORGANIC ANTIOXIDANT *ANTIOXIDANT IN FRUITS *CONCLUSION ANTI-OXIDANT INTRODUCTION: *An antioxidant is a molecule that inhibits the oxidation of other molecules. * Oxidation is a chemical reaction that transfers electrons or hydrogen from a substance to an oxidizing agent. Oxidation reactions can produce
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approach. In this case the main aspects to be considered are as follows; the child themselves‚ their families‚ friends‚ neighbours‚ their community and wider society. This is based on Bronfenbrenner’s ecological system of human development. Uri Bronfenbrenner 1979 (Jack‚2003‚ p.55) was the first to conceive an ‘ecology of human development’ that would consist of a nested arrangement of systems (meso system‚ exo system‚ macros system) with each system embedded within the one following it.’ (Jack 2001)
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learning to represent‚ process‚ store‚ and retrieve information. Stages‚ assimilation‚ accommodation‚ equilibration Memory‚ perception‚ thinking‚ symbolic representation‚ computer models Biological Ecological Approaches Bowlby Vygotsky Bronfenbrenner Organismic Organismic/ Contextual Organismic/ Contextual Social behaviors have a biological basis understandable in evolutionary terms. Human development is highly dependent on culture and language. Development results from a complex
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Summarizing and contrasting two Explanatory Theories Social workers apply theories according to how they understand people in the context of their unique circumstances‚ besides theories in social work are fundamental as they guide and explain social work practices. This essay will attempt to summarize psychodynamic and systems theories‚ highlighting similarities and differences and contrasting the application of the two explanatory theories and a practice theory to the case scenario of Mary &
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Bronfenbrenner’s Ecological Theory By: Instructor: Bronfenbrenner’s Ecological Theory I agree with Bronfenbrenner’s Ecological theory. Bronfenbrenner believed that the environment‚ or it’s ‘systems’‚ in which a person lives‚ influences them to varying degrees. (Witt‚ G.A. & Mossler‚ R.A. (2010). The ecological theory proposes that human development is best explained in terms of the interaction between individuals and the environment in which they live or have lived. . (Witt
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Urie Bronfenbrenner’s Ecological Theory holds that human development is influenced by five different types of environmental systems; these systems are also referred to as rings. The two environmental rings or systems that influenced my development the most are the Microsystem and Macrosystem. According to Brendtro (2006)‚ “Predictable developmental milestones include normal life transitions such as starting school or getting a job‚ but many developmental challenges result from random‚ unplanned events”
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Excretory system DEFINITION The excretory system is a passive biological system that removes excess‚ unnecessary materials from an organism‚ so as to help maintain homeostasis within the organism and prevent damage to the body. It is responsible for the elimination of the waste products of metabolism as well as other liquid and gaseous wastes‚ as urine and as a component of sweat and exhalation. As most healthy functioning organs produce metabolic and other wastes‚ the entire organism depends on
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Live with Kidney Stones when Relief is Available If you have kidney stones‚ you have a lot of company. Nearly 10 percent of the population suffers with this condition. Kidney stones are mostly created from calcium‚ but they can also develop from uric acid or from struvite (magnesium ammonium phosphate) crystals related to bacterial infections in the urinary tract. Kidney stones do not cure themselves and when left untreated‚ they can be very painful and even contribute to kidney damage. Surgical
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