Results 11 to 20 of about 1,344,305 (317)

The population genetics of structural variation [PDF]

open access: yesNature Genetics, 2007
Population genetics is central to our understanding of human variation, and by linking medical and evolutionary themes, it enables us to understand the origins and impacts of our genomic differences. Despite current limitations in our knowledge of the locations, sizes and mutational origins of structural variants, our characterization of their ...
Donald F, Conrad, Matthew E, Hurles
openaire   +2 more sources

Population structure, genetic diversity, and selective signature of Chaka sheep revealed by whole genome sequencing

open access: yesBMC Genomics, 2020
Background Chaka sheep, named after Chaka Salt Lake, are adapted to a harsh, highly saline environment. They are known for their high-grade meat quality and are a valuable genetic resource in China.
Jie Cheng   +11 more
doaj   +1 more source

Spatial and Temporal Characteristics of Land Use and Land Cover Change in Lijiang River Basin During 2000—2020

open access: yesShuitu baochi tongbao, 2022
[Objective] The temporal and spatial differentiation of land use and land cover change of the Lijiang River basin during 2000—2020 was analyzed in order to provide a basis for spatial governance for coordinated human activities and ecological security ...
Zhang Junmin, Li Yuqiao, Rong Cheng
doaj   +1 more source

Heterogeneity matters: Contact structure and individual variation shape epidemic dynamics.

open access: yesPLoS ONE, 2021
In the recent COVID-19 pandemic, mathematical modeling constitutes an important tool to evaluate the prospective effectiveness of non-pharmaceutical interventions (NPIs) and to guide policy-making.
Gerrit Großmann   +2 more
doaj   +1 more source

The change of Frisian infinitives [PDF]

open access: yes, 2017
This paper discusses the two types of infinitives in Frisian: infinitives ending in -E (e.g. rinne “walk”) and infinitives ending in -EN (e.g. rinnen “walk”).
LS Nederlandse taalkunde   +2 more
core   +1 more source

VARIATIONS IN THE STRUCTURE OF MITOCHONDRIA [PDF]

open access: yesThe Journal of Cell Biology, 1956
A characteristic internal structure, consisting of a double-layered outer wall enclosing a matrix-filled space through which pass double-layered membranous folds, would appear to comprise as satisfactory a definition of mitochondria for electron microscopy as their intravital affinity for Janus green affords for light microscopy.
openaire   +2 more sources

Prolactin and Growth Hormone in Birds: Protein Structure, Gene Structure and Genetic Variation

open access: yesThe Journal of Poultry Science, 2008
Prolactin (PRL) and Growth hormone (GH) are secreted from the anterior pituitary gland and affect a wide variety of physiological functions in birds. A causal relationship between plasma PRL concentration and broody behaviour is well known.
Norio Kansaku   +3 more
doaj   +1 more source

Variation in community structure across vertical intertidal stress gradients: how does it compare with horizontal variation at different scales? [PDF]

open access: yesPLoS ONE, 2011
In rocky intertidal habitats, the pronounced increase in environmental stress from low to high elevations greatly affects community structure, that is, the combined measure of species identity and their relative abundance.
Nelson Valdivia   +3 more
doaj   +1 more source

Spatial variation and drivers of vegetation structure and composition in coastal freshwater wetlands of subtropical Australia

open access: yes, 2021
Coastal freshwater wetlands (CFWs) are among the most understudied wetlands globally and are highly vulnerable to projected climate changes. To address CFW knowledge gaps in south-east Queensland, Australia, we surveyed the floristic composition and ...
Mackey, Brendan   +3 more
core   +1 more source

Climate and species richness predict the phylogenetic structure of African mammal communities. [PDF]

open access: yesPLoS ONE, 2015
We have little knowledge of how climatic variation (and by proxy, habitat variation) influences the phylogenetic structure of tropical communities.
Jason M Kamilar   +2 more
doaj   +1 more source

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