Bottleneck
Mostrando 1-12 de 209 artigos, teses e dissertações.
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1. Competências (não exercidas) das comissões de orçamento e finanças nas câmaras municipais
Resumo Este artigo analisa a atuação das comissões de orçamento e finanças das câmaras municipais no controle orçamentário. Tais comissões apoiariam os vereadores na análise, na avaliação e no controle de projetos de lei, emendas parlamentares e prestação de contas apresentados(as) pelas prefeituras ao longo de todas as fases do ciclo orçament
Rev. Adm. Pública. Publicado em: 10/01/2020
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2. Developments of reproductive management and biotechnology in the pig
Abstract This review aims to describe changes in production environment, management tools and technology to alleviate problems seen with the present hyperprolific sow model. Successful parturition in the pig includes the possibility to express adequate maternal behaviour, rapid expulsion of piglets, complete expulsion of placenta, elimination of uterine cont
Anim. Reprod.. Publicado em: 28/11/2019
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3. Gene pool sharing and genetic bottleneck effects in subpopulations of Eschweilera ovata (Cambess.) Mart. ex Miers (Lecythidaceae) in the Atlantic Forest of southern Bahia, Brazil
Abstract Forest loss and fragmentation are the main threats to the maintenance of the Atlantic Forest, an important global biodiversity hotspot. Because of the current critical level of deforestation, ecological corridors are needed to facilitate species dispersion and gene flow among fragments. This study was conducted to investigate the genetic variability
Genet. Mol. Biol.. Publicado em: 14/11/2019
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4. Micropropagation of Guadua chacoensis (Rojas) Londoño & P. M. Peterson1
RESUMO A cadeia produtiva de bambu, no Brasil, ainda é incipiente, e tem baixa oferta de mudas devido aos métodos convencionais de propagação. Objetivou-se, aqui, estabelecer um protocolo de micropropagação para Guadua chacoensis. Explantes de matrizes cultivadas em ambiente controlado resultaram em menor contaminação, relativamente aos de plantas cu
Pesqui. Agropecu. Trop.. Publicado em: 26/09/2019
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5. Improved drought tolerance in wheat is required to unlock the production potential of the Brazilian Cerrado
Abstract Improving rainfed wheat cultivation in central Brazil, where the Cerrado biome (Brazilian savanna) is predominant, remains a bottleneck for future increases in domestic wheat production. In the Cerrado, the limited water availability during the wheat-growing season is an obstacle to increase wheat yield. To address this issue, the physiological and
Crop Breed. Appl. Biotechnol.. Publicado em: 01/08/2019
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6. Variabilidade genética de larvas e alevinos de piracanjuba (Brycon orbignyanus)
RESUMO O objetivo do presente trabalho foi avaliar a variabilidade genética de larvas e alevinos de piracanjuba em programa de repovoamento. Foram coletadas 180 larvas de piracanjuba de três dias e 90 alevinos de três meses de idade. Foram avaliados cinco loci microssatélites, os quais produziram 19 alelos. Não houve presença de alelos raros nem perdas
Arq. Bras. Med. Vet. Zootec.. Publicado em: 06/06/2019
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7. Genetic diversity and population structure of Brycon nattereri (Characiformes: Bryconidae): a Neotropical fish under threat of extinction
RESUMO Brycon nattereri é um peixe Neotropical ameaçado de extinção reportado para trechos conservados dos rios Paraná, Tocantins e São Francisco. Populações desta espécie têm sido muito raras em algumas sub-bacias do rio Paraná. Este estudo analisou a diversidade genética e a estrutura populacional de B. nattereri em uma área de ocorrência res
Neotrop. ichthyol.. Publicado em: 25/04/2019
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8. Comportamento alimentar de paralarvas do polvo Octopus vulgaris Tipo II (Cuvier, 1797) alimentadas com artêmia enriquecida com microalgas e suplementada com DHA
ABSTRACT The inexistence of nutritionally adequate diets in paralarval rearing is the main bottleneck for commercial production of the common octopus Octopus cf. vulgaris. We report the feeding behavior of O. vulgaris Type II paralarvae fed on Artemia sp (0.1 individual. mL-1) nauplii enriched with microalgae Isocrysis galbana and Pavlova lutheri microalg
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2018-03
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9. How strong was the bottleneck associated to the peopling of the Americas? New insights from multilocus sequence data
Abstract In spite of many genetic studies that contributed for a deep knowledge about the peopling of the Americas, no consensus has emerged about important parameters such as the effective size of the Native Americans founder population. Previous estimates based on genomic datasets may have been biased by the use of admixed individuals from Latino populatio
Genet. Mol. Biol.. Publicado em: 2018
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10. Genetic diversity in Brazilian soybean germplasm
Abstract Genetic diversity is an essential factor for the success of any plant breeding program and should be considered to ensure genetic gain through breeding. In Brazil, research on the genetic diversity and population structure of soybean is required since the species is an important commodity of the country. The study addressed the genetic diversity and
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-12
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11. Biomolecular computers with multiple restriction enzymes
Abstract The development of conventional, silicon-based computers has several limitations, including some related to the Heisenberg uncertainty principle and the von Neumann “bottleneck”. Biomolecular computers based on DNA and proteins are largely free of these disadvantages and, along with quantum computers, are reasonable alternatives to their convent
Genet. Mol. Biol.. Publicado em: 23/10/2017
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12. Experimental Investigation on Self-Compacting Self-Curing Concrete Incorporated with the Light Weight Aggregates
ABSTRACT Self-Compacting Concrete (SCC) flows around obstructions by its self-weight to fill entirely and self-consolidate (without any need for vibration), without any part of disconnection and chunking. The eradication of the need for consolidation leads to better quality concrete and substantial improvement of running conditions. The fresh state of SCC mi
Braz. arch. biol. technol.. Publicado em: 23/01/2017