Results 71 to 80 of about 376,620 (215)

Resposta de Trichogramma atopovirilia Oatman & Platner (Hymenoptera: Trichogrammatidae) a diferentes densidades de ovos do hospedeiro natural, Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae). [PDF]

open access: yes, 2018
Avaliou-se em laboratorio (25oC), 70% UR e fotofase de 12 horas) a resposta de diferentes densidades de Trichogramma atopovirilia Oatman & Platner ao aumento da densidade de ovos do hospedeiro Helicoverpa zea (Boddie).
CIOCIOLA, A. I.   +2 more
core  

Trait coordination reveals the fast–slow plant economics spectrum along the vertical canopy profile in central Amazonian forests

open access: yesFunctional Ecology, Volume 39, Issue 12, Page 3596-3610, December 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Understanding how environmental drivers affect tree functioning is essential to improve predictions of tropical forests' response to climate change. While functional traits directly influence tree performance, our understanding of how canopy environments shape their ...
Leonardo G. Ziccardi   +13 more
wiley   +1 more source

Seasonal and spatial variation of the epilithic diatoms: case study of an organic pollution gradient in a subtropical region of southern Brazil

open access: yesActa Limnologica Brasiliensia
: Aim This study aimed to understand the seasonal variation of epilithic diatoms in the Gravataí River regarding their composition and density along the river, as well as the respective relationships with local limnological variables.
Saionara Eliane Salomoni   +2 more
doaj   +1 more source

Tempo de escarificação e adoção do sistema plantio direto e a relação com a densidade do solo máxima. [PDF]

open access: yes, 2014
Os diferentes sistemas de manejo do solo podem provocar alterações nas propriedades físicas do solo. O objetivo deste trabalho foi determinar a densidade do solo máxima em função do tempo de escarificação, umidade do solo, e de adoção do sistema plantio ...
DEBIASI, H.   +5 more
core  

The Blackbody Radiation in D-Dimensional Universes

open access: yes, 2005
The blackbody radiation is analyzed in universes with $D$ spatial dimensions. With the classical electrodynamics suited to the universe in focus and recurring to the hyperspherical coordinates, it is shown that the spectral energy density as well as the ...
Cardoso, Tatiana R.   +1 more
core   +1 more source

Efeito da pré-molhagem do agregado nas propriedades das argamassas com agregado reciclado deconcreto e agregado leve [PDF]

open access: yes, 2019
This paper examines the suitability of partially replacing natural aggregate, sand, (NA) with recycled concrete aggregate (RCA) or lightweight aggregate (LWA) in mortars, under the hypothesis that pre-wetting aggregates would produce improvement in ...
Aponte Hernández, Diego Fernando   +3 more
core   +4 more sources

Mammals with large home ranges, low reproductive rates and small body sizes are most vulnerable to roads: A meta‐analysis

open access: yesJournal of Applied Ecology, Volume 62, Issue 12, Page 3227-3239, December 2025.
Road mitigation for mammals should ideally be informed by site‐level knowledge and generally involve prioritizing species with the combination of larger home ranges, lower reproductive rates and smaller body sizes. To protect these vulnerable mammals from roads, we should maintain low road densities and instal small‐mesh mitigation fencing along roads.
Sean Patterson   +6 more
wiley   +1 more source

Atributos físicos da qualidade de um solo sob sistema agroflorestal Physical features of soil quality under an agroforestry system

open access: yesPesquisa Agropecuária Brasileira, 2004
Os sistemas agroflorestais são uma alternativa sustentável de produção agropecuária. O objetivo deste trabalho foi avaliar a qualidade de um solo sob sistema agroflorestal, mediante a quantificação dos seguintes atributos físicos do solo: densidade ...
Rodrigo Carvalho   +2 more
doaj   +1 more source

Funções de pedotransferência para estimativa da densidade dos solos de áreas tropicais montanhosas [PDF]

open access: yes, 2013
O desenvolvimento de funções de pedotransferência (FPT) para a estimativa de valores de densidade dos solos deve ser feita de levando em consideração os aspectos regionais onde se encontram os solos.
BHERING, S. B.   +3 more
core  

DENSIDADE ÓSSEA PERIMPLANTAR

open access: yes, 2023
Introduction: The evaluation of bone density is a crucial factor in the placement of dental and bone implants in dentistry. The quality and quantity of bone available at the implant placement site is a determining factor in the long-term success of the implant.
openaire   +1 more source

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