In the article “Why Does Hunger Still Exist in Africa?” Gates‚ B. (2014) illustrates the problem of the stunted and malnourished kids in the Africa. Secondly‚ he lists the effect of the poor nutrition on children’s height and brain development. Next‚ he reports the rising numbers of undernourished children in the Africa. Then he tries to alter the stereotypical image of the starvation in the Africa. Later‚ he proposes solutions to enhance children’s diet. Cloud seeding and providing sanitation and
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6 Pg 305 2. What is a data flow diagram? Why do systems analysts use data flow diagrams? Answers: A picture of the movement of data between external entities and the processes and data stores within a system. Systems analysts use DFDs to help in the analysis phase by accomplishing the following three things: 1. Requirements Determination 2. Requirements Structuring 3. Alternative Generation and Selection 3. Explain the rules for drawing good data flow diagrams. Answers: Process: A. No process
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An ion is an atom or molecule in which the total number of electrons is not equal to the total number of protons‚ giving it a net positive or negative electrical charge. The name was given by physicist Michael Faraday for the substances that allow a current to pass ("go") between electrodes in a solution‚ when an electric field is applied. It is from Greek ιον‚ meaning "going." The word ion also is responsible for electrical current being symbolized by the letter i in chemistry and physics. An anion
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The Entity Relationship Diagram (ERD) depicts a conceptual data model that incorporates some of the important scientific information about the real world. It adopts a natural view that the real world consists of entities and relations (Chen‚ 1976). One objective of the ERD is to create a simple‚ easy to understand and conveniently presented data model consisting of entities‚ attributes‚ relationships and cardinalities. The model serves as tool for database design‚ where the model can facilitate communication
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Ondrelique Ouellette 04 December 2012 The Buddhist Position on the “Soul” and the “Self”: Why They Not Exist Throughout history‚ man has been filled with existential questions. Perhaps the most common and puzzling of are those that revolve around the soul. What is the soul? Where is it housed? Where does it come from? Where does it go after one dies? Each society‚ each religion‚ has established an explanation. However‚ most prevalent religions and philosophies—be it Greek‚ Egyptian
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as Phase Diagrams By _________________ _________________ Material Science Lab #11 Report Introduction The purpose of this lab is to obtain the cooling curves for tin‚ lead and various alloys of these two metals. A phase diagram will be generated from these cooling curves. When a material is heated by adding energy at a constant rate‚ the temperature of the material will increase linearly with time‚ provided a phase transformation does not occur. As temperature of the sample becomes
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1. Candy bars are well known to supply large amounts of energy for metabolism. With all this energy trapped inside‚ how can the candy bar sit still on the shelf in the grocery store? Indeed‚ candy bars have a significant amount of carbohydrates (mostly simple‚ such as sugar) in their composition. The energy stored within these carbohydrates is chemical potential energy‚ and cannot actually be released or converted into usable chemical energy until it is eaten and taken up into the body‚ where various
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Safety of lithium-ion batteries June 2013 The European Association for Advanced Rechargeable Batteries Safety of Lithium-ion batteries Foreword This publication is prepared to provide information regarding the subject matter covered. The document has been prepared with the information available at the time of its publication. It is communicated with the understanding that the authors are not engaged in rendering legal or other professional services on issues covered by this report
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What did Hitler do to make him one of biggest terrorists in the history of this Earth? We know the general story of Hitler‚ but do we know everything he did? Hitler became the worst terrorist of all time‚ because he rounded up several million Jews and killed them with poisonous gasses in Concentration Camps for 6 years and invaded various countries killing many other non-Jews too. Adolf Hitler started off running for president of Germany but ended up losing to Paul Von Hindenburg in
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mywbut.com Data Flow Diagrams (DFDs) 1 mywbut.com Specific Instructional Objectives At the end of this lesson the student will be able to: • • • Identify the activities carried out during the structured analysis phase. Explain what a DFD is. Explain why constructing DFDs are important in arriving at a good software design. • Explain what a data dictionary is. • Explain the importance of data dictionary. • Identify whether a DFD is balanced. Structured Analysis Structured analysis
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