Results 101 to 110 of about 527,991 (295)

Methyl on the Bridge: 2‐Methyl Propellane as Precursor for 1,3‐Substituted 2‐Methylated Bicyclo[1.1.1]Pentanes

open access: yesChemistry – A European Journal, EarlyView.
The synthesis of 2‐methyl propellane and its conversion to various 1,2‐ and 1,2,3‐di‐ and trisubstituted bicyclopentanes is reported. Abstract Bicyclo[1.1.1]pentanes (BCPs) have emerged as isosteric replacements for mono‐ and para‐substituted benzene rings in medicinal and materials applications, involving substitution at the BCP bridgehead (1,3 ...
Sean R. Verschaeve   +4 more
wiley   +1 more source

Avaliação quantitativa da contaminação por micro-organismos no ambiente de criação do bicho-da-seda (Bombyx mori L.) na fase de chocadeira

open access: yesArquivos do Instituto Biológico
O objetivo do presente trabalho foi avaliar a contaminação bacteriana e fúngica em chocadeira antes e após procedimento de limpeza e desinfecção. Foram coletadas amostras do ar e de superfícies do piso, da parede, das folhas de amoreira, das lagartas do ...
L.F.F. Margatho   +3 more
doaj  

EDUCAÇÃO ÉTNICO-RACIAL NA ESCOLA: A LEI 10639/2003 E OS DESAFIOS DA INTERDISCIPLINARIDADE PARA ALÉM DAS AULAS DE HISTÓRIA

open access: yesÁgora, 2017
Analisa-se o ensino da cultura afro-brasileira e africana no contexto escolar, a partir de uma perspectiva interdisciplinar. Iniciamos o estudo, a partir de um levantamento que procurou reunir publicações nacionais sobre o tema da cultura afro-brasileira
DANIEL LUCIANO GEVEHR, DARLÃ DE ALVES
doaj   +1 more source

Performance comparison of pressure swing adsorption and amine‐based absorption for synthesis gas purification

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Comparison of PSA and amine‐based absorption for syngas purification shows that PSA offers lower energy intensity, global warming potential, and minimum selling price, making it a more sustainable option. However, absorption achieves higher syngas purity. A GREENSCOPE‐based multi‐criteria assessment guides optimal process selection.
Magno Fonseca Santos   +2 more
wiley   +1 more source

A EXPERIÊNCIA MIGRATÓRIA E SUAS DINÂMICAS SOCIOCULTURAIS NO BRASIL: EXPLORANDO A PRODUÇÃO CIENTÍFICA RECENTE

open access: yesPrâksis
Analisa-se o processo que envolve as experiências do fenômeno migratório, sob uma perspectiva sociocultural, destacando a importância de se compreender como os migrantes constroem suas identidades e buscam se integrar nos espaços de chegada.
Daniel Alexandre Nunes   +2 more
doaj   +1 more source

Educação, Território e Desenvolvimento regional

open access: yesRevista da ANPEGE, 2022
Resenha do livro Educação, Território e Desenvolvimento regional.
openaire   +1 more source

Arranjos produtivos locais de produtos madeireiros e não-madeireiros no estado do Pará, Brasil. [PDF]

open access: yes, 2014
Uma das maiores preocupações com o desenvolvimento regional na Amazônia tem sido a utilização desorganizada e desprovida dos cuidados com a sustentabilidade ambiental, social e econômica dos empreendimentos que utilizam seus recursos naturais para a ...
CASTRO, A. W. V. de   +2 more
core  

Environmental Costs of Government-Sponsored Agrarian Settlements in Brazilian Amazonia [PDF]

open access: yes, 2015
Brazil has presided over the most comprehensive agrarian reform frontier colonization program on Earth, in which ~1.2 million settlers have been translocated by successive governments since the 1970's, mostly into forested hinterlands of Brazilian ...
A Brandão Jr   +54 more
core   +2 more sources

Pharmacogenomics of Major Depressive Disorder in Indigenous Amazonian Populations

open access: yesClinical Pharmacology &Therapeutics, EarlyView.
Major depressive disorder is a highly prevalent psychological disorder worldwide and its main treatment is the use of Selective Serotonin Reuptake Inhibitors. However, few studies have demonstrated the relationship between the presence of genetic variants in pharmacogenes and the efficacy of these drugs, especially in populations with a unique genetic ...
Kaio Evandro Cardoso Aguiar   +9 more
wiley   +1 more source

Using Financial and Sustainability Ratios to Map Sectors. An Approach With Compositional Data

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT The article aims to visualize in a single graph Spanish fish and meat processing companies with respect to solvency, energy, waste and water intensity and gender employment gap. These financial, environmental, and social indicators are ratios, which require specific statistical analysis methods.
Elena Rondós‐Casas   +3 more
wiley   +1 more source

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