A melhor ferramenta para a sua pesquisa, trabalho e TCC!
Página 1 dos resultados de 3 itens digitais encontrados em 0.309 segundos
‣ Citation Analysis with Medical Subject Headings (MeSH) using the Web of Knowledge: A new routine
Fonte: Universidade Cornell
Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
49.28707%
Citation analysis of documents retrieved from the Medline database (at the
Web of Knowledge) has been possible only on a case-by-case basis. A technique
is here developed for citation analysis in batch mode using both Medical
Subject Headings (MeSH) at the Web of Knowledge and the Science Citation Index
at the Web of Science. This freeware routine is applied to the case of "Brugada
Syndrome," a specific disease and field of research (since 1992). The journals
containing these publications, for example, are attributed to Web-of-Science
Categories other than "Cardiac and Cardiovascular Systems"), perhaps because of
the possibility of genetic testing for this syndrome in the clinic. With this
routine, all the instruments available for citation analysis can now be used on
the basis of MeSH terms. Other options for crossing between Medline, WoS, and
Scopus are also reviewed.; Comment: Journal of the American Society for Information Science and
Technology (2012, in press)
Link permanente para citações:
‣ The Operationalization of "Fields" as WoS Subject Categories (WCs) in Evaluative Bibliometrics: The cases of "Library and Information Science" and "Science & Technology Studies"
Fonte: Universidade Cornell
Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
50.518496%
Normalization of citation scores using reference sets based on Web-of-Science
Subject Categories (WCs) has become an established ("best") practice in
evaluative bibliometrics. For example, the Times Higher Education World
University Rankings are, among other things, based on this operationalization.
However, WCs were developed decades ago for the purpose of information
retrieval and evolved incrementally with the database; the classification is
machine-based and partially manually corrected. Using the WC "information
science & library science" and the WCs attributed to journals in the field of
"science and technology studies," we show that WCs do not provide sufficient
analytical clarity to carry bibliometric normalization in evaluation practices
because of "indexer effects." Can the compliance with "best practices" be
replaced with an ambition to develop "best possible practices"? New research
questions can then be envisaged.; Comment: accepted for publication in the Journal of the Association for
Information Science and Technology (JASIST); 22 August 2014
Link permanente para citações:
‣ Computational methods for multi-omic models of cell metabolism and their importance for theoretical computer science
Fonte: University of Cambridge; Faculty of Computer Science and Technology; Computer Laboratory
Publicador: University of Cambridge; Faculty of Computer Science and Technology; Computer Laboratory
Tipo: Thesis; doctoral; PhD
Português
Relevância na Pesquisa
60.564473%
#Research Subject Categories::TECHNOLOGY::Information technology::Computer science::Computer science#Research Subject Categories::NATURAL SCIENCES::Biology::Cell and molecular biology::Cell biology
To paraphrase Stan Ulam, a Polish mathematician who became a leading figure in the Manhattan Project, in this dissertation I focus not only on how computer science can help biologists, but also on how biology can inspire computer scientists. On one hand, computer science provides powerful abstraction tools for metabolic networks. Cell metabolism is the set of chemical reactions taking place in a cell, with the aim of maintaining the living state of the cell. Due to the intrinsic complexity of metabolic networks, predicting the phenotypic traits resulting from a given genotype and metabolic structure is a challenging task. To this end, mathematical models of metabolic networks, called genome-scale metabolic models, contain all known metabolic reactions in an organism and can be analyzed with computational methods. In this dissertation, I propose a set of methods to investigate models of metabolic networks. These include multi-objective optimization, sensitivity, robustness and identifiability analysis, and are applied to a set of genome-scale models. Then, I augment the framework to predict metabolic adaptation to a changing environment. The adaptation of a microorganism to new environmental conditions involves shifts in its biochemical network and in the gene expression level. However...
Link permanente para citações: