Results 31 to 40 of about 441 (166)

Concentration and distribution of oil in the reservoir mineral Dolomite studied by neutron tomography

open access: yesBrazilian Journal of Radiation Sciences, 2021
Neutron Tomography – NT is a non-destructive technique, ideal for imaging hydrogen-rich substances even when wrapped up by thick rock layers. In the present study, the NT was employed for investigating the oil concentration and distribution in the ...
Reynaldo Pugliesi   +2 more
doaj   +1 more source

An Efficient, Parallelized Algorithm for Optimal Conditional Entropy-Based Feature Selection

open access: yesEntropy, 2020
In Machine Learning, feature selection is an important step in classifier design. It consists of finding a subset of features that is optimum for a given cost function.
Gustavo Estrela   +4 more
doaj   +1 more source

Unveiling an enigma from the Cerrado: taxonomic revision of two sympatric species of Apostolepis Cope, 1862 (Dipsadidae: Xenodontinae: Elapomorphini) from central Brazil

open access: yesEuropean Journal of Taxonomy, 2022
Apostolepis albicollaris and A. cerradoensis are two Elapomorphini snake species, described within a short timespan, from the Cerrado of central Brazil. In their brief descriptions, these two species were diagnosed from congeners largely based on highly
Omar M. Entiauspe-Neto   +5 more
doaj   +1 more source

MOBILIDADE URBANA E COGNIÇÃO AMBIENTAL DE CICLISTAS

open access: yesPsicologia em Estudo, 2019
Trata-se de um estudo de natureza qualitativa que teve por objetivo analisar as cognições ambientais de ciclistas na cidade de Florianópolis (SC). Na perspectiva da psicologia ambiental e dos estudos pessoa-ambiente, entende-se por cognição ambiental a ...
Nikolas Olekszechen   +2 more
doaj   +1 more source

Biological sciences students’ conceptions on teachin practice and on teaching research: a case study at the São Paulo University [PDF]

open access: yesInvestigações em Ensino de Ciências, 2014
The initial teacher formation has been very much discussed, and the reflexive practice is a point quite emphasized. In this way, the present paper aims to inquire the undergraduate biology student’s view about teaching practice and, using teaching as ...
João Rodrigo Santos da Silva   +5 more
doaj  

Avaliação de impactos ambientais e alimentares de plantas geneticamente modificadas (PGM): uma proposta metodológica. [PDF]

open access: yes, 2020
Dissertação (Mestrado em Biotecnologia) - Programa de Pós-Graduação Interunidades em Biotecnologia USP/Instituto Butantan/IPT, São Paulo.
CREMONEZI, S. M. N.
core  

Hydrodynamization Time Near a Critical Point From a Holographic Bjorken Flow

open access: yesProceedings, 2019
This proceedings reviews recent progress in the study of far-from-equilibrium hydrodynamization process of strongly interacting matter in the vicinity of a critical point.
Renato Critelli
doaj   +1 more source

Modulation of Th1/Th2 Immune Responses by Killed Propionibacterium acnes and Its Soluble Polysaccharide Fraction in a Type I Hypersensitivity Murine Model: Induction of Different Activation Status of Antigen‐Presenting Cells

open access: yesJournal of Immunology Research, Volume 2015, Issue 1, 2015., 2015
Propionibacterium acnes (P. acnes) is a gram‐positive anaerobic bacillus present in normal human skin microbiota, which exerts important immunomodulatory effects, when used as heat‐ or phenol‐killed suspensions. We previously demonstrated that heat‐killed P. acnes or its soluble polysaccharide (PS), extracted from the bacterium cell wall, suppressed or
Carla Cristina Squaiella-Baptistão   +5 more
wiley   +1 more source

SIMILIARIDADE AMBIENTAL DAS PROPOSTAS DE ZONEAMENTOS ECOLÓGICO-ECONÔMICOS EM BACIAS HIDROGRÁFICAS NO BRASIL

open access: yesBoletim Goiano de Geografia, 2020
O Zoneamento Ecológico-Econômico (ZEE) é um instrumento reconhecido no Brasil pela Política Nacional de Meio Ambiente e pelo Decreto n. 4297/2002, o qual dispõe de critérios para o ordenamento territorial considerando as influências físicas, bióticas e ...
Elfany Reis do Nascimento Lopes   +2 more
doaj   +1 more source

Antiviral Action of Hydromethanolic Extract of Geopropolis from Scaptotrigona postica against Antiherpes Simplex Virus (HSV‐1)

open access: yesEvidence-Based Complementary and Alternative Medicine, Volume 2015, Issue 1, 2015., 2015
The studies on chemical composition and biological activity of propolis had focused mainly on species Apis mellifera L. (Hymenoptera: Apidae). There are few studies about the uncommon propolis collected by stingless bees of the Meliponini tribe known as geopropolis.
Guilherme Rabelo Coelho   +11 more
wiley   +1 more source

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