Results 41 to 50 of about 4,131 (264)

Verification of heat stress thresholds for a health-based heatwave definition [PDF]

, 2019
Heatwaves represent a threat to human health and excess mortality is one of the associated negative effects. A health-based definition for heatwaves is therefore relevant, especially for early warning purposes, and it is here investigated via the ...
Cloke, H. L., Di Napoli, C., Pappenberger, F.   +2 more
core   +1 more source

The effect of agronomic measures on grain yield of winter wheat in drier conditions

Plant, Soil and Environment, 2019
The objective of this study was to evaluate the effect of a year of cultivation and three agronomic measures (pre-crop, soil tillage, application of fungicides) on the yield of winter wheat grown in the crop rotation without the livestock production. The
Petr Vrtílek, Vladimír Smutný, Tamara Dryšlová, Lubomír Neudert, Jan Křen   +4 more
doaj   +1 more source

Zootecnia de precisão: análise de imagens no estudo do comportamento de frangos de corte em estresse térmico Precision animal production: image analysis to study broiler's behavior under stress conditions

Revista Brasileira de Engenharia Agrícola e Ambiental, 2005
A preocupação em se atingir níveis de bem-estar para que a produção avícola seja maximizada vem, ao longo desses últimos anos, ganhando maior importância pela complexidade com que os fatores de produção estão correlacionados.
Kelly B. Sevegnani, Ivan W. Caror, Heliton Pandorfi, Iran J. O. da Silva, Daniella J. de Moura   +4 more
doaj   +1 more source

Spatial distribution of lactating sows in thermally controlled facilities and their productive performance during the pre-weaning phase [PDF]

Pesquisa Agropecuária Brasileira
The objective of this work was to evaluate the effect of a farrowing unit with an adiabatic evaporative cooling system with negative pressure and longitudinal air flow on the catabolism and performance of lactating sows.
Flávio de Aguiar Coelho, Viviane Maria Oliveira dos Santos, Larissa Venier de Oliveira, Débora Minetti Sarturi, Fernanda Mariane dos Santos, Erick Marlon Pereira, Ariadne Maria Portilho Saturnino da Silva, Rodrigo Gonçalves Mateus   +7 more
doaj   +1 more source

Conforto térmico de bovinos da raça nelore a pasto sob diferentes condições de sombreamento e a pleno sol Thermal comfort of nelore bovine in pasture under several lighting conditions

Engenharia Agrícola, 2009
Principalmente em regiões de clima quente, a produção bovina sob condições de pasto pode ser melhorada com o uso de sombra natural para minimizar o estresse por calor. Desse modo, o objetivo do presente estudo foi avaliar o efeito do estresse térmico por
Franciele C. Navarini, Elcio S. Klosowski, Alessandro T. Campos, Rodrigo de A. Teixeira, Clécio P. Almeida   +4 more
doaj   +1 more source

Resfriamento do piso da maternidade para porcas em lactação no verão Floor cooling in farrowing room for lactating sows in the summer

Revista Brasileira de Zootecnia, 2011
Avaliou-se o efeito do resfriamento do piso da gaiola de maternidade no desempenho produtivo de porcas em lactação no período de verão. Utilizaram-se 42 porcas entre o 1º e o 5º partos, distribuídas em delineamento experimental de blocos ao acaso com 3 ...
A.L. Lima, R.F.M. Oliveira, J.L. Donzele, H.C. Fernandes, P.H.R.F. Campos, M.V.L. Antunes   +5 more
doaj   +1 more source

Impact of Atmospheric Circulation on the Occurrence of Very Strong and Extreme Cold Stress in Poland

Quaestiones Geographicae, 2022
The primary objective of the study was the determination of the spatial and multiannual variability of occurrence of days with very strong and extreme cold stress in Poland according to the Universal Thermal Climate Index (UTCI), as well as determination
Owczarek Małgorzata, Tomczyk Arkadiusz M.   +1 more
doaj   +1 more source

Macroevolutionary processes in turtles (Testudines): a view from biomic specialization and historical climatic changes

Frontiers in Ecology and Evolution
The resource-use hypothesis proposed by Elisabeth S. Vrba suggests that lineages display varying tendencies toward generalism or specialization in biome occupancy, with a tendency towards the accumulation of specialists due to their higher rate of ...
Juan S. Thomas, Sara Gamboa, Manuel Hernández Fernández, Manuel Hernández Fernández, Oscar Murillo, Jonathan S. Pelegrin   +5 more
doaj   +1 more source

From Models to Simulations [PDF]

, 2018
This book analyses the impact computerization has had on contemporary science and explains the origins, technical nature and epistemological consequences of the current decisive interplay between technology and science: an intertwining of formalism ...
Varenne, Franck
core   +5 more sources

Transpiration in plants: A thermodynamic imperative [PDF]

, 2010
In this article we determine the importance of transpiration in plants at three different levels of organization: the plant itself, the ecosystem, and the biosphere, all in terms of entropy production due to transpiration.
Carmen Noemi Hernandez Candia, Karo Michaelian   +1 more
core   +2 more sources