Results 31 to 40 of about 243,214 (257)

Physical quality of an Oxisol cultivated with maize submited to cover crops in the pre-cropping period Qualidade física de um Latossolo vermelho cultivado com milho submetido a culturas de plantas de cobertura em pré-safra

Revista Brasileira de Ciência do Solo, 2010
The intensive use of land alters the distribution of the pore size which imparts consequences on the soil physical quality. The Least Limiting Water Range (LLWR) allows for the visualization of the effects of management systems upon either the ...
Fabiana de Souza Pereira, Itamar Andrioli, Amauri Nelson Beutler, Cinara Xavier de Almeida, Faber de Souza Pereira   +4 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Management zones based on corn yield and soil physical attributes

, 2015
The need to increase the yield and thus the income of farmers and provide food for the growing population requires the search for more efficient and innovative ways for growing, such as management by zones or site-specific practices.
Jesús H. Camacho-Tamayo, Milton F. Alarcón-Jiménez, Camacho-Tamayo, Jesús H., Bernal, Jaime H., Alarcón-Jiménez, Milton F., Jaime H. Bernal   +5 more
core   +1 more source

Physical-social attributes integrated Sybil detection for Tor bridge distribution

, 2023
As one of the most widely utilized censorship circumvention systems, Tor faces serious Sybil attacks in bridge distribution.Censors with rich network and human resources usually deploy a large number of Sybils, which disguise themselves as normal nodes ...
Xin SHI, Yunfei GUO, Yawen WANG, Xiaoli SUN, Hao LIANG
core   +1 more source

Carbono orgânico e agregação de um Latossolo Vermelho com colheita mecanizada de cana-de-açúcar Organic carbon and aggregation in a oxisol in mechanized harvesting of sugarcane

Revista Ciência Agronômica, 2012
O uso intensivo dos solos com o cultivo da cana-de-açúcar modifica significativamente as propriedades físicas do solo. Assim, objetivou-se avaliar o efeito do manejo da cana-de-açúcar com colheita mecanizada sobre a agregação de um Latossolo Vermelho ...
Henrique Antunes de Souza, Adolfo Valente Marcelo, José Frederico Centurion   +2 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Physical-hydric Attributes of a Humic Inceptisol in Agroforestry on the Santa Catarina Plateau

, 2017
The present study has the objective to evaluate and compare the feasibility of agroforestry systems by physical and hydric soil attributes over time, conducted in the city of Curitibanos-SC.
Kristem do Carmo Rosa Silva (6140831), Jânio dos Santos Barbosa (6140828), Jonathan Santos Fucks (6140843), Letícia Salvi Kohn (6140840), Carla Eloize Carducci (6140834), Karine Louise dos Santos (6140837)   +5 more
core   +1 more source

Dispersão de argila em microagregados de solo incubado com calcário Clay dispersion in microaggregates of soil incubated with limestone

Revista Brasileira de Ciência do Solo, 2008
A compactação do solo restringe o rendimento de culturas de grãos. Dentre outros fatores, a calagem pode favorecer a dispersão de microagregados e a formação de camadas compactadas.
Silvio Tulio Spera, José Eloir Denardin, Pedro Alexandre Varella Escosteguy, Henrique Pereira dos Santos, Enrique Alberto Figueroa   +4 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Penetration resistance and density of a yellow oxissol under conventional management at different ages

Bioscience Journal, 2016
Brazilian agriculture has been highlighted in Savanna areas due to significant gains in production and productivity in this biome. However, the production model with intensive use of machines for several years causes drastic changes in soil physical ...
Leovânio Rodrigues Barbosa, Luís Alfredo Pinheiro Leal Nunes, Ademir Sérgio Ferreira Araújo, Francisco Rafael Silva, Thiago Vinicius Barros Ibiapina   +4 more
doaj   +3 more sources