Results 51 to 60 of about 1,982 (155)

DISTRIBUIÇÃO DO TAMANHO DE POROS EM UM LATOSSOLO VERMELHO EM SISTEMA INTEGRADO DE PRODUÇÃO AGROPECUÁRIA

open access: yesColloquium Agrariae, 2019
Os sistemas integrados de produção agropecuária visam a sustentabilidade, procurando explorar o máximo da área, além de diminuir os impactos sobre as propriedades do solo. O presente trabalho teve objetivo estudar a distribuição do tamanho de poros de um
Rafael Luís Sanchez Perusso   +6 more
doaj  

Improvement of a testing apparatus for dynamometry: procedures for penetrometry and influence of strain rate to quantify the tensile strength of soil aggregates

open access: yesRevista Brasileira de Ciência do Solo, 2011
Soil penetration resistance (PR) and the tensile strength of aggregates (TS) are commonly used to characterize the physical and structural conditions of agricultural soils. This study aimed to assess the functionality of a dynamometry apparatus by linear
Getulio Coutinho Figueiredo   +5 more
doaj   +1 more source

Effect of a virtual walking and therapeutic exercise‐based intervention on gait and balance in people with incomplete spinal cord injury

open access: yesPM&R, EarlyView.
Abstract Background People with spinal cord injury (SCI) experience sensory and motor impairments that often require exercise‐based treatments. However, these interventions are challenging due to limited active mobility. Novel rehabilitation approaches, such as those targeting the mirror neuron system, could offer additional benefits.
Sara Mollà‐Casanova   +6 more
wiley   +1 more source

“Cold Tropics”: Permafrost Existence and Thickness on Eastern Nevado Coropuna (Southern Peruvian Andes) Revealed by Ground‐Penetrating Radar and Geoelectrical Soundings

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT The existence of permafrost was explored at tropical latitude on Nevado Coropuna (southern Peruvian Andes) using a combination of ground‐penetrating radar (GPR) and vertical electrical sounding (VES) in order to strengthen the mutual validation of data processing and interpretation.
Velnia Chacca   +6 more
wiley   +1 more source

INFLUÊNCIA DE CULTURAS DE SAFRINHAS EM SUCESSÃO À CULTURA DO MILHO (Zea mays L.) NO SISTEMA PLANTIO DIRETO SOBRE A RESISTÊNCIA À PENETRAÇÃO DO SOLO INFLUENCE OF DOUBLE CROPPING IN SUCESSION TO THE CULTURE OF THE CORN (Zea mays L.) IN THE NO TILLAGE ON THE RESISTANCE TO THE PENETRATION OF THE SOIL

open access: yesPesquisa Agropecuária Tropical, 2007
<!-- @page { margin: 2cm } --> <p class="western" align="justify">O objetivo desse trabalho foi avaliar a resistência à penetração do solo em área com seis sucessões de culturas, envolvendo safrinhas com a cultura do milho, no sistema plantio
Antônio Alberto da Silva   +3 more
doaj   +1 more source

Liquid‐Processed 2D Aromatic Amorphous Carbon: Defect Engineering and Universal Transport Scaling

open access: yesSmall, EarlyView.
Liquid‐processed graphene oxide (GO) thin films undergo a controllable crystalline–to–amorphous transition driven by thermal quenching. By kinetically tuning oxygen‐driven defect formation during reduction, scalable 2D aromatic amorphous carbon phases are stabilized, directly linking nanoscale disorder and defect topology to electronic transport ...
Fabiola Liscio   +22 more
wiley   +1 more source

Covalent Functionalization of NiFe Layered Double Hydroxides using Tris(Hydroxymethyl)Aminomethane

open access: yesSmall, EarlyView.
Covalent functionalization of NiFe layered double hydroxides with tris(hydroxymethyl)aminomethane enables controlled growth, enhanced structural order, and improved processability. Temporary TRIS anchoring promotes stable water‐based inks and binder‐free electrode fabrication, leading to enhanced oxygen evolution activity and long‐term stability under ...
Alvaro Seijas Da Silva   +8 more
wiley   +1 more source

Qualidade física de um latossolo vermelho férrico sob sistemas de uso e manejo

open access: yesBioscience Journal, 2009
A qualidade física do solo é definida como a capacidade do solo manter a produtividade sustentável ao longo dos anos. Para mensurar a qualidade física foram avaliados atributos nas camadas de 0,0-0,10; 0,10-0,20; 0,20-0,30; 0,30-0,40 m em Latossolo ...
Alberto Carvalho Filho   +5 more
doaj  

Efeitos de métodos de controle de plantas daninhas na cultura do cafeeiro (Coffea arabica L.) sobre a qualidade física do solo

open access: yesRevista Brasileira de Ciência do Solo, 2000
Estudaram-se os efeitos de diferentes métodos de controle de plantas daninhas na cultura do cafeeiro sobre alguns indicadores da qualidade física do solo. O experimento foi instalado, em 1977, na Fazenda Experimental da EPAMIG em São Sebastião do Paraíso
E. N. Alcântara, M. M. Ferreira
doaj   +1 more source

Antimicrobial Residues in a Key Cerrado River: Distribution, Persistence, and Effects on Zebrafish Embryo‐Larval Development

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT The current study aimed to quantify the antimicrobials amoxicillin (AMX), cefazolin (CFZ), chloramphenicol (CHL), metronidazole (MTZ), and sulfamethoxazole (SX) in effluents and surface water of an important Cerrado river, calculate their half‐lives, and analyze their ecotoxicity following single and combined exposures.
Náthala Maria Simão   +12 more
wiley   +1 more source

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