Results 51 to 60 of about 9,116 (118)

Joint social‐ecological outcomes of private land conservation: An evidence synthesis with a well‐being perspective

open access: yesPeople and Nature, Volume 8, Issue 5, Page 1066-1084, May 2026.
Abstract Private land conservation (PLC) can contribute to sustainability by improving biodiversity and human well‐being but can also result in negative outcomes for people and nature if poorly designed. Informing PLC design to achieve objectives for joint biodiversity and well‐being is challenging because most evaluations assess ecological and social ...
Erica Cseko Nolasco   +6 more
wiley   +1 more source

Aplicação de resinas sulfônicas como catalisadores em reações de transesterificação de óleos vegetais Evaluation of sulfonic resins as catalysts in transesterification of vegetable oils

open access: yesPolímeros, 2005
Diferentes suportes poliméricos à base de estireno (S) e divinilbenzeno (DVB) foram sintetizados e suas morfologias caracterizadas por microscopia óptica e eletrônica de varredura.
Simone M. de Rezende   +6 more
doaj   +1 more source

Landscape features predict broad‐scale seed rain patterns across fragments of the Brazilian Atlantic Forest

open access: yesJournal of Ecology, Volume 114, Issue 5, May 2026.
Along with precipitation, forest cover emerges as a fundamental driver of alpha and beta diversity in the seed rain. This highlights the role of habitat amount at the landscape level over patch‐level features, like patch size, for seed dispersal. However, increased seed density can be related to higher dispersal rates in forest borders.
Luís Felipe Daibes   +63 more
wiley   +1 more source

SÍNTESE E CARACTERIZAÇÃO DE MOFs UTILIZANDO ÁCIDO 1,4- BENZENODICARBOXÍLICO E ZINCO: NOVA ROTA VERDE HIDROTÉRMICA

open access: yesHolos, 2020
Neste estudo, relatamos a síntese pela primeira vez da rede metal-orgânica conhecida na literatura como MOF-5, utilizando exclusivamente água como solvente ao invés de solventes orgânicos em uma síntese hidrotérmica.
Paula Ranielle Barros Brazão   +6 more
doaj   +1 more source

The Red Queen unveils the sexual and mating strategies of flowers

open access: yesJournal of Ecology, Volume 114, Issue 5, May 2026.
Although the conventional wisdom is that floral traits of plants evolved in concert with their mutualistic pollinators, here we showed that several key sexual and mating traits of plants, which modulate their outcrossing strategy, evolved in response to the pressure exerted by their antagonistic insect herbivores.
Carlos Roberto Fonseca   +2 more
wiley   +1 more source

Dispersões aquosas poliuretânicas à base de polibutadieno hidroxilado: influência das variáveis reacionais Development of polyurethane aqueous dispersions based on hydroxy-terminated polybutadiene: reaction variables

open access: yesPolímeros, 2007
Neste trabalho foram produzidas dispersões aquosas poliuretânicas com formulações variadas, em ausência de solvente orgânico. Nas sínteses, foram empregados o diisocianato de isoforona (IPDI) e como polióis, o poli(glicol propilênico) (PPG) e diferentes ...
Lúcio C. de Magalhães   +2 more
doaj   +1 more source

Fire modulates the structural drivers and functioning of individual‐based plant‐pollinator networks

open access: yesJournal of Ecology, Volume 114, Issue 5, May 2026.
Ecological drivers that shape (positively or negatively) the plant‐pollinator network and determine plant fitness, both before and after a fire. Abstract Fire is a natural phenomenon that shapes ecosystems, but climate change and human activities have increased its frequency and magnitude, disrupting essential ecosystem services like pollination ...
Larissa Alves‐de‐Lima   +5 more
wiley   +1 more source

Síntese e caracterização do copolímero poli (L-co-D,L Ácido Láctico) Synthesis and characterization of the copolymer poly (L-co-D,L lactic acid)

open access: yesPolímeros, 2007
A aplicação de polímeros biorreabsorvíveis em próteses temporárias é constante nos procedimentos médicos relacionados a fraturas ósseas. Dentre os polímeros bioreabsorvíveis, o poli(L-co-D, L ácido láctico), PLDLA, na relação 70:30, tem sido estudado ...
Adriana C. Motta, Eliana A. R. Duek
doaj   +1 more source

Limited contribution by non‐volant small mammals to regeneration in ironstone rocky outcrops

open access: yesRestoration Ecology, Volume 34, Issue 4, May 2026.
Abstract Introduction Animal‐mediated seed dispersal contributes substantially to natural regeneration in degraded areas. However, the role of seed dispersal by non‐volant small mammals (NVSM), mainly marsupials and rodents, in contributing to regeneration remains underexplored, especially in mountaintop, open‐canopy ecosystems.
Maria Fernanda Regiolli Godoi   +3 more
wiley   +1 more source

Processamento, propriedades e aplicações das cerâmicas de nitreto de alumínio

open access: yesCerâmica
Resumo O nitreto de alumínio (AlN) é considerado um adequado material para substratos e materiais de encapsulamento de dispositivos microeletrônicos devido à elevada condutividade térmica, às excelentes propriedades elétricas e ao coeficiente de expansão
A. L. Molisani
doaj   +1 more source

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