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Mostrando ítems 12581-12590 de 30899
Information-theoretical analysis of resting state EEG microstate sequences - non-Markovianity, non-stationarity and periodicities
(Elsevier, 2017-09)
We present an information-theoretical analysis of temporal dependencies in EEG microstate sequences during wakeful rest. We interpret microstate sequences as discrete stochastic processes where each state corresponds to a ...
Perspectivas antropológicas sobre el estado-nación y la etnicidad: Argentina, 1936-2006
(Sociedad Argentina de Antropología, 2007-11)
Este trabajo tiene un doble objeto. Por un lado, reseñar y poner en contexto las formas en que la antropología sociocultural fue dialogando en el país con producciones del campo de los Estudios Étnicos desde 1936 en adelante. ...
Long-range spin chirality dimer order in the Heisenberg chain with modulated Dzyaloshinskii-Moriya interactions
(American Physical Society, 2019-05-31)
The ground-state phase diagram of a spin S = 1 2 XXZ Heisenberg chain with spatially modulated Dzyaloshinskii-Moriya interaction H= n{J(Sx nSx n+1 +Sy nSy n+1 )+JzSz nSz n+1 +[D0 +(−1)nD1](Sx nSy n+1 −S y nSx n+1 )}is ...
Introduced lagomorph produce stronger potential apparent competition in invaded communities than any other species in a similar but native food web
(Springer, 2019-12)
Apparent competition is an indirect interaction that can strongly influence ecosystem functioning, altering species populations within the same trophic level. As a new resource, an introduced species can generate strong ...
Limb bone stress in the mara dolichotis patagonum (Caviomorpha; caviidae; dolichotinae)
(Associazione Teriologica Italiana, 2020-03)
The mara Dolichotis patagonum (Caviomorpha, Caviidae) is probably the extant rodent with the most pronounced postcranial specializations for fast locomotion. When running the species can reach a speed of ~40 km/h. It has ...
Molecular and Electronic Structure of ä-Valerothiolactone
(American Chemical Society, 2010-11-04)
The crystal structure of the six-member heterocyclic δ-valerothiolactone (1-thiocycloalkan-2-one) compound has been determined by X-ray diffraction at low temperature, revealing that its skeleton adopts a half-chair ...
Detection of excision repaired DNA damage in the comet assay by using Ara-C and hydroxyurea in three different cell types
(Springer, 2009-02)
Because of its characteristics, the comet assay has been used to evaluate the ability of virtually any type of eukaryotic cell to repair different kinds of DNA damage, including double and single strand breaks and base ...
Experimental and theoretical second harmonic generation and photoluminescence from the pseudo-centrosymmetric dihydrochloride salt dihydrate of trans-1,2-bis(4-pyridyl)ethene
(Royal Society of Chemistry, 2017-01)
Here we have prepared a dihydrochloride salt dihydrate of the well-known trans-1,2-bis(4-pyridyl)ethene (BPE) featuring both photoluminescent and nonlinear optical properties. In its triclinic lattice (space group P1), BPE ...
Comparable stx2a expression and phage production levels between Shiga toxin-producing Escherichia coli strains from human and bovine origin
(Wiley Blackwell Publishing, Inc, 2020-02)
Shiga toxin-producing Escherichia coli (STEC) can cause diarrhea and severe diseases in humans such as hemolytic uremic syndrome. Shiga toxins (Stx) are encoded in prophages which play an important role in STEC pathogenesis. ...
The influence of magnetic field on the cold neutral medium mass fraction and its alignment with density structures
(Wiley Blackwell Publishing, Inc, 2018-06)
To contribute to the understanding of the magnetic field's influence on the segregation of cold neutral medium (CNM) in the solar neighbourhood we analyse magnetohydrodynamic simulations that include themain physical ...