Results 91 to 100 of about 89,782 (303)

The relation between isotopic composition of argon and carbon in natural gases [PDF]

open access: yes
The methods and results of determination of the argon and carbon isotope compositions of hydrocarbon gases of Mezozoic complexes of Western Siberia are presented.
Gavrilov, Y. Y.   +2 more
core   +1 more source

Evidence that genetic drift not adaptation drives fast‐Z and large‐Z effects in Ficedula flycatchers

open access: yesMolecular Ecology, EarlyView.
Abstract The sex chromosomes have been hypothesized to play a key role in driving adaptation and speciation across many taxa. The reason for this is thought to be the hemizygosity of the heteromorphic part of sex chromosomes in the heterogametic sex, which exposes recessive mutations to natural and sexual selection. The exposure of recessive beneficial
Madeline A. Chase   +2 more
wiley   +1 more source

Evolution of postglacial vegetation in the Western Laptev Sea region (Siberian Arctic) [PDF]

open access: yes, 2007
On the basis of a detailed study of the pollen-spore spectra and a detailed radiocarbon chronology of a sediment core obtained from the western outer Laptev Sea shelf, the long-term and high-resolution changes of vegetation in the northwestern Laptev Sea
Bauch, Henning   +3 more
core  

The Distribution and Dispersal of Large Haploblocks in a Superspecies

open access: yesMolecular Ecology, EarlyView.
ABSTRACT Haploblocks are regions of the genome that coalesce to an ancestor as a single unit. Differentiated haplotypes in these regions can result from the accumulation of mutational differences in low‐recombination chromosomal regions, especially when selective sweeps occur within geographically structured populations.
Darren Irwin   +16 more
wiley   +1 more source

The influence of climate and hydrological variables on opposite anomaly in active-layer thickness between Eurasian and North American watersheds [PDF]

open access: yes, 2013
This study not only examined the spatiotemporal variations of active-layer thickness (ALT) in permafrost regions during 1948-2006 over the terrestrial Arctic regions experiencing climate changes, but also identified the associated drivers based on ...
FEDOROV, Alexander   +11 more
core   +2 more sources

Notes on Sufi Traditions in Western Siberia

open access: yesIslamology, 2010
Basing on their archival and field studies of Islamic practices including holy places, mosques and  waqf  endowments in Western Siberia I.V. Belich and A.K. Bustanov argue the importance of Sufi traditions in the spread of Islam in the area under study. A comparative study of narrative sources and field oral materials allows them to formulate new goals
Igor Belich, Alfrid K. Bustanov
openaire   +3 more sources

Genomic Signatures and Demographic History of the Widespread and Critically Endangered Yellow‐Breasted Bunting

open access: yesMolecular Ecology, EarlyView.
ABSTRACT Population declines may have long‐term genetic consequences, including genetic erosion and inbreeding depression, which could affect species' evolutionary potential and increase their risk of extinction. Small populations are more vulnerable to genetic threats than common species, but even species with large populations can also be at risk of ...
Guoling Chen, Simon Yung Wa Sin
wiley   +1 more source

The legislation of the mining and metallurgical refining bonded peasants of the Urals and Western Siberia in the XVIII century [PDF]

open access: yes, 2013
В статье дается анализ законодательства горнозаводских отработок прописных крестьян Урала и Западной Сибири.The article gives analysis of the legislation of the mining and metallurgical refining uppercase peasants of Western Siberia and the ...
Karonnov, V. A.   +1 more
core  

Pure Event Semantics

open access: yesPhilosophical Perspectives, EarlyView.
ABSTRACT In a pure event semantics for natural language, the domain of quantification and predication is limited to events and states. I offer pure event semantic analyses of several phenomena, some of which have not been treated before in formal semantics. In the pure event semantics sketched in the second section, nouns are state predicates, and this
Roger Schwarzschild
wiley   +1 more source

The composition of peat extracts from drained and natural raised bogs of Belarus and Western Siberia

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2019
Relevance of the work is caused by the active reclamation of swamps and the lack of data on wetland drainage impact on chemical composition of peat deposits.
Olga Serebrennikova   +6 more
doaj   +2 more sources

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