Results 11 to 20 of about 830,199 (260)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+3 more sources

Estudio de inclusiones fluidas de las mineralizaciones epitermales de Ag.Baritina.metales de base de Hiendelaencina y de Baritina de Atienza (Sistema Central Español)

open access: yesEstudios Geologicos, 1991
Estudios de inclusiones fluidas en muestras de cuarzo y baritina del yacimiento epitermal argentífero de Hiendelaencina sugieren que esta mineralización se formó a lo largo de cuatro episodios hidrotermales.
A. Concha   +4 more
doaj   +1 more source

Factorization and Criticality in Finite XXZ Systems of Arbitrary Spin [PDF]

open access: yes, 2017
We analyze ground state (GS) factorization in general arrays of spins si with XXZ couplings immersed in nonuniform fields. It is shown that an exceptionally degenerate set of completely separable symmetry-breaking GSs can arise for a wide range of field ...
Canosa, Norma Beatriz   +3 more
core   +4 more sources

A tree code for planetesimal dynamics: Comparison with a hybrid direct code [PDF]

open access: yes, 2003
We present a tree code for simulations of collisional systems dominated by a central mass. We describe the implementation of the code and the results of some test runs with which the performance of the code was tested.
Brunini, Adrian, Viturro, Hector Ruben
core   +3 more sources

Strange metal crossover in the doped holographic superconductor [PDF]

open access: yes, 2018
In a recent paper, Kiritsis and Li presented a holographic model to study the competition between different orders at finite doping in holographic superconductors.
Giordano, Gaston Luciano   +3 more
core   +3 more sources

Pismis 20: one or two clusters? [PDF]

open access: yes, 2003
We present UBVRI polarimetric observations of stars in the direction of the open cluster Pismis 20 and WR 67. It is found that the observed members segregate polarimetrically into two groups, with different associated mean Pmax (4.31 and 6.08 ...
Marraco, Hugo Gustavo   +2 more
core   +2 more sources

Fluctuations, entropic quantifiers and classical-quantum transition [PDF]

open access: yes, 2014
We show that a special entropic quantifier, called the statistical complexity, becomes maximal at the transition between super-Poisson and sub-Poisson regimes.
Pennini, Flavia Catalina   +1 more
core   +2 more sources

First record of Aedes aegypti (L.) (Diptera: Culicidae) infected by the parasite Ascogregarina culicis (Ross) (Apicomplexa: Lecudinidae) in Argentina [PDF]

open access: yes, 2005
n a survey for parasites and pathogens of Aedes aegypti conducted in La Plata, Argentina, an aseptate gregarine was found parasitizing larvae, pupae and adults of this mosquito species. This gregarine species was identified as Ascogregarina culicis based
Dellapé, Mariana E.   +3 more
core   +1 more source

Monte Carlo simulation with fixed steplength for diffusion processes in nonhomogeneous media [PDF]

open access: yes, 2013
Monte Carlo simulation is one of the most important tools in the study of diffusion processes. For constant diffusion coefficients, an appropriate Gaussian distribution of particle's steplengths can generate exact results, when compared with integration ...
Hoyuelos, Miguel Luis   +2 more
core   +1 more source

Parallelized tree–code for clusters of personal computers [PDF]

open access: yes, 2000
We present a tree-code for integrating the equations of the motion of collisionless systems, which has been fully parallelized and adapted to run in several PC-based processors simultaneously, using the well-known PVM message passing library software ...
Carpintero, Daniel Diego   +1 more
core   +2 more sources

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