Results 21 to 30 of about 2,752,573 (249)

Histórico genético e populacional do rebanho Nelore Puro de Origem no Sertão Nordestino Genetic and populational background of Pure Nelore cattle breed in Brazilian Northeastern Sertão

open access: yesPesquisa Agropecuária Brasileira, 2009
O objetivo deste trabalho foi avaliar o histórico do rebanho Nelore Puro de Origem no Sertão Nordestino por meio da determinação de sua estrutura populacional e da quantificação do progresso genético, fenotípico e ambiental ocorrido em características de
Carlos Henrique Mendes Malhado   +3 more
doaj   +1 more source

Melhoramento e estrutura populacional em bubalinos da raça Mediterrâneo no Brasil Improvement and population structure of Mediterranean water buffaloes raised in Brazil

open access: yesPesquisa Agropecuária Brasileira, 2008
O objetivo deste trabalho foi avaliar a estrutura populacional e os progressos genéticos, fenotípicos e ambientais de características de desenvolvimento ponderal, em bubalinos da raça Mediterrâneo. Foram utilizadas informações dos pesos ajustados aos 205,
Carlos Henrique Mendes Malhado   +5 more
doaj   +1 more source

Effective population size for culturally evolving traits.

open access: yesPLoS Computational Biology, 2022
Population size has long been considered an important driver of cultural diversity and complexity. Results from population genetics, however, demonstrate that in populations with complex demographic structure or mode of inheritance, it is not the census ...
Dominik Deffner   +2 more
doaj   +1 more source

Population structure of Nellore cattle in northeastern Brazil

open access: yesRevista Brasileira de Zootecnia, 2013
The objective of this study was to evaluate the population genetic structure of Nellore cattle in northeastern Brazil. Pedigree information was collected from 175,231 animals born from 1967 to 2007.
Ana Carla Borges Barbosa   +6 more
doaj   +1 more source

Estimativa de ganho genético a partir de diferenciais de seleção e parâmetros populacionais em um rebanho Caracu Estimates of genetic gain based on selection differentials and population parameters in a herd of Caracu cattle

open access: yesRevista Brasileira de Zootecnia, 2005
Foram analisados dados do rebanho Caracu da Estação Experimental de Zootecnia de Sertãozinho, selecionado para peso ao sobreano entre os anos de 1979 e 2002, com os objetivos de descrever o tamanho efetivo, o coeficiente de geração, o intervalo de ...
Márcio Cinachi Pereira   +3 more
doaj   +1 more source

Individual increase in inbreeding allows estimating effective sizes from pedigrees

open access: yesGenetics Selection Evolution, 2008
We present here a simple approach to obtain reliable estimates of the effective population size in real world populations via the computation of the increase in inbreeding for each individual (delta Fi) in a given population.
Valera Mercedes   +4 more
doaj   +1 more source

Ferroelectric Size Effects

open access: yes, 2007
In this chapter, we have reviewed, with a focus on our own efforts, the history, current and future perspectives on the problem of ferroelectric size effects. This past decade has seen an explosion of activity in the field of nanoscale ferroelectrics, with a broad spectrum of novel and artificial materials explored, and a huge potential for new ...
Lichtensteiger, Céline   +2 more
openaire   +2 more sources

Size dependent of the effective conductivity of composite with imperfect interfaces

open access: yesVietnam Journal of Mechanics, 2020
Based on the circle assemblage model, the effective properties of the inclusion with imperfect interface are derived. The equivalent inclusion is incorporated in the Fourier Transform algorithm to determine the effective conductivity of the composite ...
Nguyen Trung Kien
doaj   +1 more source

Effective population size in Busha and Gatačko cattle from Herzegovina: Ecological and molecular approach [PDF]

open access: yesAgroznanje, 2013
The effective population size (Ne) is one of basic core concepts in population genetics. Monitoring the effective population size, which is parallel to monitoring genetic variability, is of importance to population genetic studies and is applicable in ...
Rogić Biljana   +4 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

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