Results 141 to 150 of about 517,407 (334)

The Hilbert space of Chern-Simons theory on the cylinder. A Loop Quantum Gravity approach

open access: yes, 2009
As a laboratory for loop quantum gravity, we consider the canonical quantization of the three-dimensional Chern-Simons theory on a noncompact space with the topology of a cylinder.
Ashtekar A   +16 more
core   +2 more sources

Classificação das áreas de conhecimento do CNPq e o campo da Enfermagem: possibilidades e limites

open access: yes, 2013
Knowledge areas have been discussed by Science and Technology managers and administrators and by the scientific community searching for tools to support data systematization, mainly for management and administrative activities.
D. Oliveira   +3 more
semanticscholar   +1 more source

Hepatic morphology and serum biochemical profile according to dry and rainy seasons in Pygocentrus nattereri (Characiformes: Serrasalmidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia   +9 more
wiley   +1 more source

Perfil dos bolsistas de produtividade em pesquisa do CNPQ em Psicologia

open access: yes, 2013
The present work aimed to analyze the profile of researchers in psychology with productivity grants from Brazil's National Council of Technological and Scientific Development (CNPq), according to the information collected at the website called Lattes ...
G. Wendt   +3 more
semanticscholar   +1 more source

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

open access: yesThe Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri   +8 more
wiley   +1 more source

Brownian Dynamics, Time-averaging and Colored Noise

open access: yes, 2006
We propose a method to obtain the equilibrium distribution for positions and velocities of a one-dimensional particle via time-averaging and Laplace transformations.
Budini   +14 more
core   +3 more sources

CNPq e o acesso aberto à informação científica

open access: yesRevista Ibero-Americana de Ciência da Informação, 2015
Nesta tese se discute o processo formal de comunicação científica por meio de artigos publicados em revistas científicas nacionais e internacionais e a acessibilidade dessas informações em canais de acesso aberto. Descrevem-se os modelos de negócios das editoras científicas e elabora-se uma proposta de sistema de gestão da produção científica ...
openaire   +3 more sources

Paleopathology of a putative colossosaurian caudal vertebra (Neosauropoda: Titanosauria) from the Presidente Prudente Formation, Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Studies investigating paleopathologies in sauropods remain scarce despite their relative abundance in the fossil record. In this study we report new occurrence of paleopathological features, corresponding to a neoplasm found in a middle caudal vertebra (MCT.R.2120) of an advanced titanosaur from the Presidente Prudente Formation (Bauru Basin ...
Maria Luiza Peres Bertolossi   +5 more
wiley   +1 more source

A trajetória das concepções de discurso e de gramática na perspectiva funcionalista

open access: yesMatraga, 2009
Starting in the seventies, when it defined itself as an analytical orientation to language studies, North-American functional linguistics has refined and updated its theoretical principles and assumptions.
Mariangela Rios de Oliveira   +1 more
doaj  

Spatial patterns and biodiversity in off-lattice simulations of a cyclic three-species Lotka-Volterra model

open access: yes, 2018
Stochastic simulations of cyclic three-species spatial predator-prey models are usually performed in square lattices with nearest neighbor interactions starting from random initial conditions.
Avelino, P. P.   +4 more
core   +1 more source

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