Results 91 to 100 of about 574,447 (319)

Las Relaciones entre Corea del Norte y Pakistán y el tráfico de tecnología

open access: yesRevista UNISCI, 2012
Corea del Norte supone una amenaza para la paz y seguridad internacionales no sólo como consecuencia de sus programas de armas nucleares y de misiles sino también y sobre todo de la transferencia de tales ingenios.
Gracia Abad
doaj  

A Comparative Review of Specification Tests for Diffusion Models

open access: yesInternational Statistical Review, EarlyView.
Summary Diffusion models play an essential role in modelling continuous‐time stochastic processes in the financial field. Therefore, several proposals have been developed in the last decades to test the specification of stochastic differential equations.
A. López‐Pérez   +3 more
wiley   +1 more source

Giants in the cold: Morphological evidence for vascular heat retention in the viscera but not the skeletal muscle of the basking shark (Cetorhinus maximus)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Fewer than 50 of the over 30,000 extant species of fishes have developed anatomical specializations facilitating endothermy in specific body regions. The plankton‐feeding basking shark (Cetorhinus maximus), traditionally classified as an ectotherm, was recently shown to have regionally endothermic traits such as centralized red muscle (RM ...
C. Antonia Klöcker   +9 more
wiley   +1 more source

The very faint hard state of the persistent neutron star X-ray binary SLX 1737-282 near the Galactic centre [PDF]

open access: yes, 2017
We report on a detailed study of the spectral and temporal properties of the neutron star low mass X-ray binary SLX 1737-282, which is located only ~1degr away from Sgr A.
De Marco, B.   +4 more
core   +2 more sources

Clima organizacional en instituciones de atención primaria de salud

open access: yesRevista Médica Electrónica
En este artículo se realizó una valoración sobre el clima organizacional, con el objetivo de explicar y entregar una perspectiva acerca de su concepto, el cual se alimenta de los aportes e investigaciones del comportamiento organizacional, y donde se ...
José Marcos Santa Eulalia Mainegra   +1 more
doaj  

Morphological and molecular evidence reveals a new species of Characidium from the Ucayali‐Urubamba Piedmont, Peru, and novel molecular clades are proposed within the genus

open access: yesJournal of Fish Biology, EarlyView.
Abstract A new species of Characidium is described from the Urubamba River basin, within the Ucayali‐Urubamba Piedmont ecoregion, Peru. The new species can be readily distinguished from all congeners, except Characidium cacah, Characidium chicoi, Characidium helmeri, Characidium mirim, Characidium nana, Characidium nupelia, Characidium sterbai ...
Leonardo Oliveira‐Silva   +6 more
wiley   +1 more source

Bush, Kerry e Irán [PDF]

open access: yes, 2004
Uno de los retos más complejos y apremiantes para la próxima Administración norteamericana, independientemente de que esté George W. Bush o John Kerry en la Casa Blanca, será desactivar la crisis de proliferación de armas nucleares con Irán, país que ...
Kern, Soeren
core  

Attitudes Towards Sexuality and Sexual Orientation in People With Intellectual Disabilities: A Systematic Review

open access: yesJournal of Intellectual Disability Research, EarlyView.
ABSTRACT Over time, sexuality has become a crucial aspect in people's lives, regardless of physical, intellectual or social conditions, ranging from sex and sexually transmitted diseases to gender identity and sexual orientation. The aim of this study was to carry out a review of the scientific literature on sexual orientation in people with ...
Laura Armas Junco   +2 more
wiley   +1 more source

¿Evolución o innovación? Los cambios técnico-tácticos en el armamento del ejército español durante el relevo dinástico: nuevas consideraciones

open access: yesCuadernos de Historia Moderna, 2016
La historiografía europea ha afirmado que mientras otros estados mejoraron la organización y armamento de sus fuerzas armadas durante el siglo XVII, España no fue capaz de tomar el mismo camino. Este trabajo analiza las distintas armas utilizadas por los
Antonio José Rodríguez Hernández
doaj   +1 more source

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