Results 41 to 50 of about 500,247 (275)

Notas para volver a ver la frontera

open access: yesChihuahua Hoy, 2016
La noción de frontera ha variado a lo largo de la historia y en el caso del norte de México pasa desde referirse de manera amplia a un territorio intermedio, borroso y elástico en la época colonial, hasta fines del siglo xix cuando se le define como una
Pedro Vidal Siller Vázquez
doaj   +1 more source

Una mirada heterogénea del espacio fronterizo: el caso de la frontera tarapaqueña (Chile)

open access: yesRevista CIDOB d'Afers Internacionals, 2019
Las zonas fronterizas han estado y estan presentes en el discurso publico por la creciente preocupacion en relacion con los espacios de trasiego humano y de mercancias que suponen.
Romina Ramos Rodríguez   +1 more
semanticscholar   +1 more source

Clinical Trials in Cardiac Arrest and Subarachnoid Hemorrhage: Lessons from the Past and Ideas for the Future

open access: yesStroke Research and Treatment, 2013
Introduction. Elevated intracranial pressure that occurs at the time of cerebral aneurysm rupture can lead to inadequate cerebral blood flow, which may mimic the brain injury cascade that occurs after cardiac arrest.
Jennifer A. Frontera
doaj   +1 more source

Benzene, an Unexpected Binding Unit in Anion–π Recognition: The Critical Role of CH/π Interactions

open access: yesSci, 2022
We report high-level ab initio calculations (CCSD(T)(full)/CBS//SCS-RI-MP2(full)/aug-cc-pwCVTZ) that demonstrate the importance of cooperativity effects when Anion–π and CH/π interactions are simultaneously established with benzene as the π-system.
David Quiñonero, Antonio Frontera
doaj   +1 more source

Expected performance of a Laue lens based on bent crystals

open access: yes, 2012
In the context of the LAUE project devoted to build a long focal length focusing optics for soft gamma-ray astronomy (70/100 keV to $>$600 keV), we present results of simulation of a Laue lens, based on bent crystals in different assembling ...
Frontera, Filippo   +3 more
core   +1 more source

Rationale of New Grading System: Central Compartment Atopic Disease

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Central compartment atopic disease (CCAD) has recently been recognized as a distinct phenotype within the spectrum of type 2–dominant chronic rhinosinusitis (CRS). Although international guidelines highlight polypoid changes in the central nasal cavity, standardized diagnostic and classification criteria are still lacking.
Ramón Moreno‐Luna   +11 more
wiley   +1 more source

Las lógicas de gobierno de lo fronterizo en el espacio Schengen: la frontera como estriación

open access: yesRevista CIDOB d'Afers Internacionals, 2019
Este artículo propone una reflexión sobre la frontera considerando su operatividad como espacio de gobierno. Esta lectura implica trascender el ingrediente territorial de frontera –y su sentido de afirmación soberana– y atender a su funcionalidad ...
David San Martín Segura
doaj   +1 more source

An upscattering spectral formation model for the prompt emission of Gamma-Ray Bursts

open access: yes, 2012
We propose a model for the spectral formation of Gamma Ray Burst (GRB) prompt emission, where the phenomenological Band's function is usually applied to describe the GRB prompt emission.
Amati, Lorenzo   +3 more
core   +1 more source

Beppo-SAX Observations of Galaxy Clusters [PDF]

open access: yes, 1998
The high spatial resolution of the MECS experiment on board Beppo-SAX has encouraged a few scientists, including the author, to perform observations of galaxy clusters. Results from the analysis of the first few observed objects are encouraging.
Boella   +10 more
core   +2 more sources

Technological Turbulence, Circular Economy Practices, and Digitalization as Determinants of Innovative Culture in High‐Growth Firms

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT In a business environment characterized by technological turbulence and an increasing societal demand for greater sustainability, companies seeking to enhance their growth are compelled to foster organizational cultures that promote continuous innovation.
José Bocoya‐Maline   +2 more
wiley   +1 more source

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