Results 71 to 80 of about 234,175 (326)

Drift and evolutionary forces: scrutinizing the Newtonian analogy [PDF]

open access: yes, 2016
This article analyzes the view of evolutionary theory as a theory of forces. The analogy with Newtonian mechanics has been challenged due to the alleged mismatch between drift and the other evolutionary forces. Since genetic drift has
Luque, Víctor J.
core  

Pulmonary Dysfunction Is Associated With Sleep Study Abnormalities in Children With Sickle Cell Disease: A Multicenter Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash   +4 more
wiley   +1 more source

Recent evolutionary history predicts population but not ecosystem‐level patterns

open access: yesEcology and Evolution, 2019
In the face of rapid anthropogenic environmental change, it is increasingly important to understand how ecological and evolutionary interactions affect the persistence of natural populations.
Madison L. Miller   +2 more
doaj   +1 more source

Structure and genetic variability in Nellore (Bos indicus) cattle by pedigree analysis

open access: yesGenetics and Molecular Biology, 2006
Parameters based on the probability of gene origin were used to describe the genetic variability in strains of Nellore and polled Nellore (Bos indicus) cattle that participated in the Program for Genetic Improvement of the Nellore Breed (Programa de ...
Pedro Alejandro Vozzi   +4 more
doaj   +1 more source

Inference of population splits and mixtures from genome-wide allele frequency data [PDF]

open access: yes, 2012
Many aspects of the historical relationships between populations in a species are reflected in genetic data. Inferring these relationships from genetic data, however, remains a challenging task. In this paper, we present a statistical model for inferring
A Keinan   +66 more
core   +5 more sources

Genetic drift and polygenic inheritance [PDF]

open access: yesAmerican Journal of Physical Anthropology, 1972
AbstractThe interaction of random gene drift and selection was studied by computer simulation for two quantitative traits, which were considered to approximate stature and skin color differences in human populations. The expected effects of gene drift, fixation of alleles and reduction of genotypic and phenotypic variances, were found in the simulation.
openaire   +3 more sources

Financial Burden Associated With Hospitalisation Among Families of Childhood Brain Tumours in Australia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Families of children with cancer experience significant financial strain, even with universal healthcare. Indirect costs, such as productivity losses and non‐medical expenses, are rarely included in economic evaluations, and little is known about how effectively financial aid programmes alleviate this burden. Childhood brain tumours
Megumi Lim   +8 more
wiley   +1 more source

Laboratory colonisation and genetic bottlenecks in the tsetse fly Glossina pallidipes [PDF]

open access: yes, 2014
Background The IAEA colony is the only one available for mass rearing of Glossina pallidipes, a vector of human and animal African trypanosomiasis in eastern Africa. This colony is the source for Sterile Insect Technique (SIT) programs in East Africa.
Ciosi, Marc   +2 more
core   +3 more sources

Random genetic drift in a cline [PDF]

open access: yesProceedings of the National Academy of Sciences, 1978
A diffusion model is derived for random genetic drift in a cline. The monoecious organism occupies an unbounded linear habitat with constant, uniform population density. Migration is homogeneous, symmetric, and independent of genotype. The analysis applies to a single diallelic locus without dominance or mutation.
openaire   +2 more sources

The Fate (Outcome) of Clinically Apparent Single Lesion and Oligofocal Nephroblastomatosis Treated According to SIOP/GPOH Protocols for Wilms Tumor

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The management of clinically apparent single lesions or oligofocal nephroblastomatosis, a facultative precursor of nephroblastoma, remains debated. Methods We retrospectively analyzed 37 patients with clinically apparent single or oligofocal nephroblastomatosis (two to three lesions per kidney) among 2347 patients registered between
Nils Welter   +17 more
wiley   +1 more source

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