نتایج جستجو برای: scientific maps

تعداد نتایج: 476572  

2009
Ismael Rafols Alan L. Porter Loet Leydesdorff

We present a novel approach to visually locate bodies of research within the sciences, both at each moment of time and dynamically. This article describes how this approach fits with other efforts to locally and globally map scientific outputs. We then show how these science overlay maps help benchmark, explore collaborations, and track temporal changes, using examples of universities, corporat...

Abdoreza Salahimoghadam, Alireza KHoshdel, Mohammad Barati, Mohammad Mahdi Sedaghat,

Introduction: In spite of public health level improvement in Iran, Malaria is still an important health problem in the southeast corner of the country. Mapping distribution of endemic diseases with their relations to geographical factors has become important for public health experts. This study was carried out to provide the distribution maps of the geographical pathology of Malaria in Iran wi...

Journal: :Memorias do Instituto Oswaldo Cruz 2000
A R Teixeira A Simões-Barbosa E Faudry S P Lozzi E R Argañaraz M D'Souza-Ault J M Santana

The development of biotechnology in the last three decades has generated the feeling that the newest scientific achievements will deliver high standard quality of life through abundance of food and means for successfully combating diseases. Where the new biotechnologies give access to genetic information, there is a common belief that physiological and pathological processes result from subtle ...

Journal: :PLoS ONE 2009
Johan Bollen Herbert Van de Sompel Aric Hagberg Luis Bettencourt Ryan Chute Marko A. Rodriguez Lyudmila Balakireva

BACKGROUND Intricate maps of science have been created from citation data to visualize the structure of scientific activity. However, most scientific publications are now accessed online. Scholarly web portals record detailed log data at a scale that exceeds the number of all existing citations combined. Such log data is recorded immediately upon publication and keeps track of the sequences of ...

Journal: :The annals of applied statistics 2014
Tian Ge Nicole Müller-Lenke Kerstin Bendfeldt Thomas E Nichols Timothy D Johnson

Magnetic resonance imaging (MRI) plays a vital role in the scientific investigation and clinical management of multiple sclerosis. Analyses of binary multiple sclerosis lesion maps are typically "mass univariate" and conducted with standard linear models that are ill suited to the binary nature of the data and ignore the spatial dependence between nearby voxels (volume elements). Smoothing the ...

ژورنال: مدیریت سلامت 2016

Introduction: Recently, there has recently been an increase in the level of investments in clinical trials; therefore, the outcomes and impacts of these investments should be assessed. This study aimed to measure the impact of scientific productions of clinical trials on the knowledge production and development in Iran. Methods: In this descriptive study bibliometric and scientometric method...

2002
Bertram Ludäscher Amarnath Gupta Maryann E. Martone

A database mediator system combines information from multiple existing source databases and creates a new virtual, mediated database that comprises the integrated entities and their relationships. When mediating scientific data, the technically challenging problem of mediator query processing is further complicated by the complexity of the source data and the relationships between them. In part...

2010
Nebrasse Ellouze

In this thesis, we have proposed ACTOM, a Topic Map building approach based on an automated processtaking into account multilingual documents and Topic Map evolution according to content and usage changes.To enrich the Topic Map, we are based on a domain thesaurus and we propose to explore all potentialquestions related to source documents on order to represent usage in the Topic Ma...

Journal: :Document Numérique 2003
M. Abel Dominique Lenne Claude Moulin Ahcene Benayache

Many documents and more generally many resources are produced or used in an e-learning application. In order to capitalize these resources and to facilitate their access, we propose to organise them in a “learning organisational memory” (MEMORAe project). In this paper, we present the context of use, the needs and the contents of this memory. We describe the ontologies and the Topic Maps formal...

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