Results 71 to 80 of about 26,937 (255)

Bound States in the Continuum and Fano Resonances in the Dirac Cone Spectrum

open access: yes, 2019
We consider light scattering by two dimensional arrays of high-index dielectric spheres arranged into the triangular lattice. It is demonstrated that in the case a triple degeneracy of resonant leaky modes in the Gamma-point the scattering spectra ...
Bulgakov, E. N., Maksimov, D. N.
core   +1 more source

Extremely reducing conditions reached during basaltic intrusion in organic matter-bearing sediments [PDF]

open access: yes, 2012
International audienceRedox conditions in magma are widely interpreted as internally buffered and closely related to that of their mantle source regions.
Arndt, Nicholas   +6 more
core   +3 more sources

New perspectives on the Popigai impact structure [PDF]

open access: yes
The record of large-scale cratering on Earth is scant, and the only currently 'proven' 100-km-class impact structure known to have formed within the Cenozoic is Popigai, located in the Siberian Arctic at 71.5 deg N, 111 deg E.
Deino, A. L., Garvin, J. B.
core   +1 more source

Bayesian phylolinguistics infers the internal structure and the time-depth of the Turkic language family

open access: yes, 2020
Despite more than 200 years of research, the internal structure of the Turkic language family remains subject to debate. Classifications of Turkic so far are based on both classical historical–comparative linguistic and distance-based quantitative ...
Robbeets, M., Savelyev, A.
core   +1 more source

What About Eco‐Populism? A Neglected Historical Tradition

open access: yes
Constellations, EarlyView.
Federico Tarragoni
wiley   +1 more source

Development of Distributed Research Center for analysis of regional climatic and environmental changes [PDF]

open access: yes, 2016
We present an approach and first results of a collaborative project being carried out by a joint team of researchers from the Institute of Monitoring of Climatic and Ecological Systems, Russia and Earth Systems Research Center UNH, USA.
Gordov, E.   +4 more
core   +1 more source

Late Holocene climate and environmental changes in Kamchatka inferred from subfossil chironomid record. [PDF]

open access: yes, 2013
This study presents a reconstruction of the Late Holocene climate in Kamchatka based on chironomid remains from a 332 cm long composite sediment core recovered from Dvuyurtochnoe Lake (Two-Yurts Lake, TYL) in central Kamchatka.
de Hoog, Verena   +4 more
core   +1 more source

The ISCIP Analyst, Volume III, Issue 4 [PDF]

open access: yes, 1998
This repository item contains a single issue of The ISCIP Analyst, an analytical review journal published from 1996 to 2010 by the Boston University Institute for the Study of Conflict, Ideology, and ...
Cavan, Susan   +5 more
core   +1 more source

Palaeoenvironments and palaeoceanography changes across the Jurassic/Cretaceous boundary in the Arctic realm: case study of the Nordvik section (north Siberia, Russia) [PDF]

open access: yes, 2014
The Jurassic/Cretaceous transition was accompanied by significant changes in palaeoceanography and palaeoenvironments in the Tethyan Realm, but outside the Tethys such data are very scarce.
Chadima, Martin   +9 more
core   +2 more sources

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