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An investigation of equatorial 150-km irregularities
(University of Illinois at Urbana-Champaign, 1999)
We performed experiments using the 50-MHz Jicamarca radar to study the equatorial 3-m scale plasma irregularities which are responsible for the radar backscatter called 15-km echoes observed at upper E-region heights from ...
Internal inertia-gravity waves in the tropical lower stratosphere observed by the Arecibo Radar
(American Meteorological Society, 1984-08-01)
High-resolution upper tropospheric and lower stratospheric (5-30 km) wind data were obtained during three periods from 1979 to 1981 with the aid ofthe high-power UHF radar at Arecibo, Puerto Rico (18.4°N, 66.8°W). A ...
Multimodel comparison of the ionosphere variability during the 2009 sudden stratosphere warming
(American Geophysical Union, 2016-07-18)
A comparison of different model simulations of the ionosphere variability during the 2009 sudden stratosphere warming (SSW) is presented. The focus is on the equatorial and low‐latitude ionosphere simulated by the ...
The Prickle Effect Comes From Fabrics Made of South American Camelid (Alpaca and Lama) Fibers. Mechanical and/or Genetic Solutions
(Society for Science and EducationReino Unido, 2021-06-25)
In this paper we intends to analyze the physical attributes that determine the comfort of fabrics made of South American Camelid fibers (Lama and Alpaca), the effect on their value and their possible mechanical and/or ...
El cambio en el pensamiento profesional del psicólogo escolar en formación
(Universidad Nacional Autónoma de México, Instituto de Investigaciones sobre la Universidad y la Educación, 2011)
En este artículo caracterizamos el cambio en el pensamiento profesional del psicólogo desde una perspectiva epistemológica y de desarrollo, durante su formación en la práctica. Participaron tres psicólogos inscritos en el ...
Self-reported psychological problems and coping strategies: a web-based study in Peruvian population during COVID-19 pandemic
(BioMed Central LtdPE, 2021)
"Background: The Coronavirus pandemic has disrupted health systems across the world and led to major
shifts in individual behavior by forcing people into isolation in home settings. Its rapid spread has overwhelmed ...
Widespread pH abnormalities in patients with malformations of cortical development and epilepsy: a phosphorus-31 brain MR spectroscopy study
(Elsevier B.V., 2014-11-01)
Introduction: Neuroimaging studies demonstrate that not only the lesions of malformations of cortical development (MCD) but also the normal-appearing parenchyma (NAP) present metabolic impairments, as revealed with H-1-MRS. ...
Significant hardness enhancement in an Al–Cu–Mg alloy with high Cu:Mg ratio by microalloying with Si and Ge
(Elsevier, 2018-12)
The evolution of hardness in an Al-Cu-Mg based alloy with high Cu:Mg ratio (= 2, at. %) microalloyed with Si and Ge was studied during artificial ageing treatment performed at 190 °C. The results were compared to those ...
Los imaginarios políticos frente a la crisis : economía alternativa, autonomía cultural, democracia radicalizada
(2015-04)
El artículo pretende constituir un ejercicio de reflexión en torno a las transformaciones del orden político, económico y cultural prevaleciente y de las formas que estas adoptan en los casos de Bolivia y España. Al reconocer ...
Criticality in elastoplastic models of amorphous solids with stress-dependent yielding rates
(Royal Society of Chemistry, 2019-10)
We analyze the behavior of different elastoplastic models approaching the yielding transition. We propose two kinds of rules for the local yielding events: Yielding occurs above the local threshold either at a constant ...