Results 51 to 60 of about 26,520 (155)

Interferência de pulsos (interferência destrutiva) [PDF]

open access: yes, 2011
Ensino Médio::FísicaEducação Superior::Ciências Exatas e da Terra::FísicaO vídeo demonstra uma simulação sobre a interferência destrutiva de dois pulsosO aluno deve ter conhecimento sobre características das ...
Gallis, Michael R.
core  

Wintering Together: Do Migrants Impact Residents? A Literature Review

open access: yesEcology and Evolution, Volume 15, Issue 2, February 2025.
This review examines the overlooked impacts of interspecific competition on resident tropical birds during the overwintering period, highlighting the need for a deeper understanding of their interactions with migratory species. By evaluating the literature through the lens of competition theory, we identify critical gaps in knowledge and suggest that ...
Kimberly C. Navarro‐Velez   +1 more
wiley   +1 more source

Avaliação do potencial de interferência analítica de fármacos na análise química do exame de urina [PDF]

open access: yes, 2006
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde. Programa de Pós-Graduação em Farmácia.O exame de urina proporciona informações sobre patologias renais e do trato urinário, bem como sobre algumas moléstias ...
Colombeli, Adriana Scotti da Silva
core  

Efeito de coberturas de inverno e sua época de manejo sobre a infestação de plantas daninhas na cultura de milho Effect of winter cover crops and their management timing on weed infestation in maize crop

open access: yesPlanta Daninha, 2007
No sistema de plantio direto, a presença de palha sobre o solo proporciona significativa supressão de plantas daninhas. O objetivo deste trabalho foi avaliar o potencial de coberturas de inverno e sua época de manejo em reduzir a infestação de plantas ...
A.A. Balbinot Jr.   +2 more
doaj   +1 more source

Using Q‐methodology for policy research and stakeholder engagement to strengthen public health in large‐scale mining in Mozambique

open access: yesSustainable Development, Volume 33, Issue 1, Page 1298-1314, February 2025.
Abstract Mining projects can have adverse effects on public health, potentially impacting the 2030 Sustainable Development Agenda. While environmental impacts are typically addressed through mandatory environmental impact assessments, public health consequences often receive inadequate attention, despite being a major concern for affected communities ...
Joschka J. Proksik   +4 more
wiley   +1 more source

Uso de regresão linear múltipla e redes neurais artificiais na estimativa da interferência de plantas daninhas em cultivos agrícolas [PDF]

open access: yes, 2020
The efficiency of weed control in agricultural crops depends on the adoption of the control method at the right time, minimizing the interference of the weed community.
Monteiro, Alex Lima
core   +2 more sources

Efeito de períodos de controle de plantas daninhas sobre o desenvolvimento inicial de plantas de eucalipto Effects of weed control periods on initial growth and development of eucalypt

open access: yesPlanta Daninha, 2000
O objetivo deste trabalho foi estudar os efeitos dos períodos de convivência e de controle de Brachiaria decumbens sobre o desenvolvimento inicial de clones de Eucalyptus grandis x Eucalyptus urophylla. Para isso, um ensaio foi conduzido, no município de
R.E.B. Toledo   +4 more
doaj   +1 more source

Behavioural co‐option of plant secondary compounds by a cavity‐nesting bird is an adaptation against competition and predation

open access: yesFunctional Ecology, Volume 39, Issue 2, Page 362-370, February 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Interactions with competitors and predators can generate strong selection and favour the evolution of novel strategies for mitigating fitness costs. Adaptations to mitigate competition and predation risk often involve evolution of traits which directly reduce costs ...
James C. Mouton   +4 more
wiley   +1 more source

Características de plantas de cultivares de arroz irrigado relacionadas à habilidade competitiva com plantas concorrentes Characteristics of flooded rice cultivar plants related to competitive ability against weeds concurrent plants

open access: yesPlanta Daninha, 2003
Plantas que apresentam rápido crescimento tendem a ocupar precocemente nichos disponíveis, utilizando o espaço de suas vizinhas. Em geral, esses vegetais adquirem prioridade na utilização dos recursos do meio.
N.G. Fleck   +3 more
doaj   +1 more source

A spatially explicit assessment of factors shaping attitudes toward African elephant conservation

open access: yesConservation Biology, Volume 39, Issue 1, February 2025.
Abstract Conservation plans that explicitly account for the social landscape where people and wildlife co‐occur can yield more effective and equitable conservation practices and outcomes. Yet, social data remain underutilized, often because social data are treated as aspatial or are analyzed with approaches that do not quantify uncertainty or address ...
Sarah L. Carroll   +9 more
wiley   +1 more source

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