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Mostrando ítems 5461-5470 de 11358
The effect of 22NE diffusion in the evolution and pulsational properties of white dwarfs with solar metallicity progenitors
(IOP Publishing, 2016-06)
Because of the large neutron excess of 22Ne, sedimentation of this isotope occurs rapidly in the interior of white dwarfs. This process releases an additional amount of energy, thus delaying the cooling times of the white ...
Isolation and characterization of 20 polymorphic microsatellite loci in the migratory freshwater fish Leporinus obtusidens (Characiformes: Anostomidae) using 454 shotgun pyrosequencing
(Wiley, 2015-03)
Twenty polymorphic microsatellite markers were developed for the Neotropical fish Leporinus obtusidens using a next generation sequencing approach and tested in two other characifomes species, Schizodon platae and Prochilodus ...
Speciation in the asexual realm: Is the parthenogenetic weevil Naupactus cervinus a complex of species in statu nascendi?
(Elsevier, 2013-04)
Population genetic theory shows that asexual organisms may evolve into species, which behave as independent evolutionary units. As a result, they form genotypic clusters separated by deep gaps due to geographic isolation ...
From Metagenomics to Pure Culture: Isolation and Characterization of the Moderately Halophilic Bacterium Spiribacter salinus gen. nov., sp. nov.
(American Society for Microbiology, 2014-04-12)
Recent metagenomic studies on saltern ponds with intermediate salinities have determined that their microbial communities are dominated by both Euryarchaeota and halophilic bacteria, with a gammaproteobacterium closely ...
Genetic variability of hepatitis B virus in Uruguay: D/F, A/F genotype recombinants
(Springer Wien, 2015-06)
Hepatitis B virus (HBV) infection is a serious global health problem. Approximately 2 billion people worldwide have been infected, and approximately 350 million individuals currently suffer from HBV-induced chronic liver ...
First record of Babesia sp. in Antarctic penguins
(ELSEVIER, 2016-04)
This is the first reported case of Babesia sp. in Antarctic penguins, specifically a population of Chinstrap penguins (Pygoscelis antarctica) in the Vapour Col penguin rookery in Deception Island, South Shetlands, Antarctica. ...
Secondary contact followed by gene flow between divergent mitochondrial lineages of a widespread Neotropical songbird (Zonotrichia capensis)
(Wiley Blackwell Publishing, Inc, 2014-03)
Understanding how genetic and phenotypic differences that arise in geographically isolated populations influence the outcome of secondary contact advances our knowledge of speciation. In the present study, we investigate ...
Historical records of mercury in southern latitudes over 1600 years: Lake Futalaufquen, Northern Patagonia
(Elsevier Science, 2016-05)
Mercury is released to the environment from natural and anthropogenic sources, and through atmospheric transport is distributed globally. Lake Futalaufquen (42.8°S) is an oligotrophic lake located in Los Alerces National ...
Angiotensin-converting enzyme insertion/deletion polymorphism is associated with severe hypoxemia in pediatric ARDS
(Springer, 2012)
PURPOSE:
The D allele of the insertion/deletion (I/D) polymorphism of a 287-bp sequence in the angiotensin-converting enzyme (ACE) gene has been associated with an increased activity of this enzyme. Its role in susceptibility ...
Eucalipto e ectomicorrizas para fitorremediação de solos contaminados com zinco
(Universidade Federal de Santa MariaBRAgronomiaUFSMPrograma de Pós-Graduação em Agronomia, 2013-02-27)
Population growth, human technological development and intensification of human activities
on the environment, has generated considerable volumes of industrial, agricultural and urban
waste, which when applied to the soil ...