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with the "Key Numbers and Digest" feature (browse by subject using an expandable tree – no search terms required), by a key number search using the "Terms and Connectors" method (with a known topic and key number – in the form of 134k261; topic 134 is Divorce and the key number is 261 for "Enforcement, In general"),
A qualitative study [43] seeks to learn why or how, so the writer's research must be directed at determining the what, why and how of the research topic. Therefore, when crafting a research question for a qualitative study, the writer will need to ask a why or how question about the topic. For example: How did the company successfully market ...
Secant method — based on linear interpolation at last two iterates; False position method — secant method with ideas from the bisection method; Muller's method — based on quadratic interpolation at last three iterates; Sidi's generalized secant method — higher-order variants of secant method
Another definition of research is given by John W. Creswell, who states that "research is a process of steps used to collect and analyze information to increase our understanding of a topic or issue". It consists of three steps: pose a question, collect data to answer the question, and present an answer to the question.
Index terms can consist of a word, phrase, or alphanumerical term. They are created by analyzing the document either manually with subject indexing or automatically with automatic indexing or more sophisticated methods of keyword extraction. Index terms can either come from a controlled vocabulary or be freely assigned.
Based at York University, Toronto, Canada. [120] PubChem: Chemistry: Free National Center for Biotechnology Information and the U.S. National Library of Medicine [121] PubMed: Biomedical: A database primarily of references and abstracts on life sciences and biomedical topics Free National Institutes of Health and the U.S. National Library of ...
Also called infinitesimal calculus A foundation of calculus, first developed in the 17th century, that makes use of infinitesimal numbers. Calculus of moving surfaces an extension of the theory of tensor calculus to include deforming manifolds. Calculus of variations the field dedicated to maximizing or minimizing functionals. It used to be called functional calculus. Catastrophe theory a ...
In the case of document retrieval, queries can be based on full-text or other content-based indexing. Information retrieval is the science [ 1 ] of searching for information in a document, searching for documents themselves, and also searching for the metadata that describes data, and for databases of texts, images or sounds.