1 Numerical Methods for Differential Equations 1 2 NUMERICAL METHODS FOR DIFFERENTIAL EQUATIONS Introduction Differential equations can describe nearly all systems undergoing change. They are ubiquitous is science and engineering as well as economics‚ social science‚ biology‚ business‚ health care‚ etc. Many mathematicians have studied the nature of these equations for hundreds of years and there are many well-developed solution techniques. Often‚ systems described by differential
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In my ward‚ I have an experience of creating a track for buttonhole method which turned out to be successful. Buttonhole technique was initially used in Europe with people who had restricted cannulation sites. In this technique‚ the needle is implanted accurately at the same site and the same angle for every dialysis session. (Twardowski & Kubara‚ 1979). Formerly cannulation is mandatory with sharp needles to create a track formation. Ideally‚ the same person must cannulate the fistula to create
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. To find the PVA‚ we use the equation: PVA = C({1 – [1/(1 + r)]t } / r ) PVA = $60‚000{[1 – (1/1.0825)9 ] / .0825} PVA = $370‚947.84 The present value of the revenue is greater than the cost‚ so your company can afford the equipment. 7. Here we need to find the FVA. The equation to find the FVA is: FVA = C{[(1 + r)t – 1] / r} FVA for 20 years = $3‚000[(1.08520 – 1) / .085] FVA for 20 years = $145‚131.04 FVA for 40 years = $3‚000[(1.08540 – 1) / .085] FVA for 40
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Scientific Method The Scientific Method is a system devised to allow scientists to gain insight‚ or knowledge‚ on a wide range of questions about one’s behavior and other points of interest. The first step in this process is to identify a question that deserves an explanation or answer to. For example‚ a good indentifying question that one could use would be why did the chicken cross the road? This is a specific behavior that can be addressed and quantified. Once the individual has the question
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questionnaire the guess‚ age‚ and gender facets. 3) Choose a reasonable sample size of people and ask them to fill out the ballots. 4) Recollect the questionnaires and enter the data into Excel. 5) Sample the guesses into 5 groups utilizing the bootstrapping method found within statistics. 6) Plot the results of the bootstrapped data and the data obtained from the other facets from the questionnaires. Draw conclusions. In Step 1‚ put an undetermined amount of jellybeans in the jar to ensure you didn’t know
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Inquiry Method Steps 1. Ask a question or identify the problem – What do you want to learn about? This question forms the starting point for inquiry. Example: You may be interested in discovering what methods of studying lead to better exam results. 2. Develop a hypothesis – A hypothesis is possible answer to your research question. Your hypothesis gives you direction. It helps you to determine what needs to be tested and which research method you will use. Example: You may hypothesize that
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sampling methods. Give one example of each. Non-probability sampling Non-probability sampling is that sampling procedure which does not afford any basis for estimating the probability that each item in the population has of being included in the sample. In this type of sampling‚ items for the sample are selected deliberately by the researcher; his choice concerning the items remains supreme. Non-Probability Sampling Methods: The common feature in non probability sampling methods is that subjective
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ICT Methods for Communication “Information and communication technologies are defined as for the purposes‚ as a “diverse set of technological tools and resources used to communicate‚ and to create‚ disseminate‚ store‚ and manage information.” These technologies include computers‚ the Internet‚ broad casting technologies (radio and television)‚ and telephones”. (Mohanty 2011) The use of ICTs in today’s society has rapidly increased through the use of social media sites such as Facebook‚ twitter
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Irrigation and it’s Methods Irrigation may be defined as the science of artificial application of water to the land or soil. It is the replacement of rainfall with water from another source in order to grow crops. Several methods of irrigation are used today depending on the water availability and the type of crop to be irrigated. Some of these methods are: 1) Flood irrigation: In flood irrigation‚ a large amount of water is brought to the field and flows on the ground among the crops
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RESEARCH METHODS VARIABLES AND HYPOTHESES Begin with stating the research question‚ the purpose of the research‚ the resources needed‚ and a plan for the research‚ including a model of the phenomenon under study. Where do research ideas come from? Curiosity; experience; need for deciding or acting; job; school; building on or contesting existing theory; available funding; etc. A preliminary research proposal‚ in one or two pages‚ a. states the research question b. states
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