Results 21 to 30 of about 768,011 (261)

Impacto das Variações no Crédito Rural e no Investimento em Pesquisa Agrícola na Produtividade da Agricultura Brasileira Contemporânea

Revista de Economia e Sociologia Rural
Resumo: A queda da produtividade das principais lavouras pode estar relacionada à redução dos investimentos em pesquisa. Ainda, o crédito rural subsidiado pode ser necessário para um aumento da produtividade, uma vez que esse é um fator essencial para a ...
Celso José Costa Junior
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Proposal for a strategic management plan for experimental agricultural and academic farm "El Cairo" of Arauca

Agronomía Colombiana, 2014
This paper presents a design for a strategic management plan for the Experimental Agricultural and Academic Farm: El Cairo of the Universidad Nacional de Colombia, Orinoquía branch.
Elías Nieves, Lilia Teresa Bermudez, Luis Felipe Rodríguez   +2 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

A diversidade dos recursos genéticos vegetais e a nova pesquisa agrícola The diversity of plant genetic resources and the new approaches in the agronomic research

Ciência Rural, 1998
As novas demandas da pesquisa agrícola requerem a formação de recursos humanos com níveis avançados de qualificação e capazes de elaborar e executar propostas científicas, tecnológicas e políticas relacionadas ao uso, melhoramento e conservação dos ...
Miguel Pedro Guerra, Rubens Onofre Nodari, Maurício Sedrez dos Reis, Afonso Inácio Orth   +3 more
doaj   +1 more source

ABL kinase‐dependent phosphorylation of SH proteins promotes their direct interaction with CRK family SH2 domains

FEBS Letters, EarlyView.
CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens, Brendan W. Chandler, Anna M. Schmoker, Jaye L. Weinert, Charlotte A. Kearns, Warren T. Yacawych, Amila Šemić, Alicia M. Ebert, Bryan A. Ballif   +8 more
wiley   +1 more source

R&D Investments, technology spillovers and agricultural productivity, case of the Czech Republic

Agricultural Economics (AGRICECON), 2015
The objective of the paper is to quantify the effect of the R&D investments on agricultural productivity in the Czech Republic using the co-integration analysis. The effect of the R&D investments is measured by a knowledge stock constructed using a gamma
Tomas RATINGER, Zuzana KRISTKOVA
doaj   +1 more source

CD47 promotes mitogen‐activated protein kinase and epithelial‐to‐mesenchymal transition molecular programs to drive prometastatic phenotypes in non‐small cell lung cancer

Molecular Oncology, EarlyView.
Beyond its role in immune evasion, this study identified that CD47 drives tumor‐intrinsic signaling in non‐small cell lung cancer (NSCLC). Transcriptomic profiling and functional studies revealed that CD47 regulates cell adhesion, migration, and metastasis through an ERK–EMT signaling axis.
Asa P.Y. Lau, Lilian G. Zhai, Ryunosuke Hoshi, Zackary Rousseau, Abraam Zakhary, Yin Fang Wu, Rola M. Saleeb, Heyu Ni, Kelsie L. Thu   +8 more
wiley   +1 more source

Model of innovation in agriculture 4.0 processes in the department of Cundinamarca, Colombia

Tendencias
Innovation in agriculture plays a fundamental role in the transition of said production towards more sustainable schemes, hence the importance of its study, especially in relation to production processes.
Carlos Alberto Almanza Junco, Yenny Katherine Parra Acosta, Mauricio Sabogal Salamanca   +2 more
doaj   +1 more source

On applications of the factor analysis in the agricultural research

Agricultural Economics (AGRICECON), 2007
The authors give a brief overview of the outcomes of an application of the factor analysis and present results of two applications within the agricultural research.
V. Brabenec, H. Nešetřilová
doaj   +1 more source