Results 51 to 60 of about 19,260 (255)

Recria e terminação de borregas mestiças em confinamento alimentadas com níveis crescentes de concentrado na dieta

open access: yesSemina: Ciências Agrárias, 2016
Objetivou-se avaliar dietas com níveis crescentes de concentrado para borregas confinadas e estabelecer a proporção de concentrado ideal para maximizar a utilização dos nutrientes e o desempenho durante as fases de recria e terminação.
Caroline Bertholini Ribeiro   +9 more
doaj   +1 more source

Controlling the Field: Memory, Labor, and Ethics in Oral Histories of Brazilian Human Genetics

open access: yesBerichte zur Wissenschaftsgeschichte, EarlyView.
This article examines how oral histories of twentieth‐century human genetics in Brazil reveal the politics of memory of fieldwork. Through a comparative analysis of interviews with prominent geneticist Francisco M. Salzano and technician Girley V. Simões, who worked with him for most of his career, this study explores the narrative strategies each ...
Rosanna Dent   +1 more
wiley   +1 more source

Chemical modifications of a natural xanthone and antimicrobial activity against multidrug resistant Staphylococcus aureus and cytotoxicity against human tumor cell lines

open access: yesQuímica Nova, 2011
A series of 15 ω-aminoalkoxylxanthones containing methyl, ethyl, propyl, tert-butylamino and piperidinyl moieties were synthesized from a natural xanthone isolated from a lichen species.
Ana Camila Micheletti   +9 more
doaj   +1 more source

Geografiasindígenas no/do Mato Grosso do Sul

open access: yesRevista NERA, 2020
De 1492-1500 aos dias atuais, as histórias e trajetórias dos Povos Indígenas passaram por profundas transformações socioespaciais em decorrência do contato com o não-índio. Hoje, mais do que nunca, é necessário um olhar atento às existências indígenas, que até a virada do século XV para o XVI eram construídas sem qualquer relação com o mundo ocidental.
Juliana Grasiéli Bueno Mota   +1 more
openaire   +1 more source

Environmental and geomorphological drivers of frog diversity on islands worldwide

open access: yesEcography, EarlyView.
Island biogeography models primarily rely on island physical features and isolation to explain their biodiversity patterns. While newer models have incorporated functional traits to understand plant distribution, few empirical studies have tried to disentangle geometric constraints from niche‐based processes to predict multiple diversity facets of ...
Raoni Rebouças   +5 more
wiley   +1 more source

Xylanases in diets with alternative feeds and energy reduction in commercial layers

open access: yesSemina: Ciências Agrárias, 2021
The use of alternative ingredients has been increasing in a continuing attempt to reduce production costs, along with the use of additives, such as carbohydrates, for their possible positive effects on nutrient metabolization by layers.
Gislaine da Cunha de Andrade   +6 more
doaj   +1 more source

State‐Level Politics in Forest Governance: The Role of the Narrative‐Policy Nexus in the Brazilian Amazon

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT Deforestation and its social impacts are an enduring challenge in agrarian frontiers, especially in the tropics. Fueled by global demand for commodities, this process is mediated by ideas, concepts, meanings, and policies that uphold socioenvironmental degradation. A key and understudied—arena in which this mediation occurs is the sub‐national
Gabriela Russo Lopes, Fabio de Castro
wiley   +1 more source

Multifactorial Screening for Fine‐Scale Selection of CCS Industrial Clusters and Hubs in Brazil

open access: yesGreenhouse Gases: Science and Technology, EarlyView.
ABSTRACT As Brazil moves toward implementing its decarbonization commitments, carbon capture and storage (CCS) hubs are emerging as a key pathway for large‐scale CO2 abatement in hard‐to‐abate sectors. This paper presents a multifactorial, data‐driven framework to screen and prioritize potential CCS industrial clusters and hubs across Brazilian regions,
Gustavo P. Oliveira   +5 more
wiley   +1 more source

Genotype by environment interaction in Nelore cattle from five Brazilian states

open access: yesGenetics and Molecular Biology, 2011
Records from 75,941 Nelore cattle were used to determine the importance of genotype by environment interaction (GEI) in five Brazilian states. (Co)variance components were estimated by single-trait analysis (with yearling weight, W450, considered to be ...
Iara Del Pilar Solar Diaz   +3 more
doaj  

Reforma do ensino médio no Mato Grosso do Sul

open access: yesRetratos da Escola, 2022
O presente artigo vincula-se à pesquisa interinstitucional A Reforma do Ensino Médio com a Lei nº 13.415/2017: percursos da implementação nas redes estadual e federal de Ensino Médio do Mato Grosso do Sul, que integra investigação da Rede EMpesquisa, centrando-se nas iniciativas de implementação da reforma do ensino médio em Mato Grosso do Sul.
Fabio Perboni   +1 more
openaire   +1 more source

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