Results 41 to 50 of about 440,939 (254)

Radical Fluoroalkylation Reactions [PDF]

open access: yes, 2018
Recent protocols and reactions for catalytic radical perfluoroalkylations will be described. The production of perfluoroalkyl radicals (RF = CnF2n+1, n ≥ 2), which effect both addition and substitution reactions on organic substrates, can be realized ...
Barata Vallejo, Sebastian   +2 more
core   +1 more source

Uranium Doped Gallium Nitride Epitaxial Thin Films

open access: yesAdvanced Electronic Materials, EarlyView.
Uranium was controllably added to gallium nitride using molecular beam epitaxy. The uranium atoms segregated into vertically oriented regions with higher doping levels. Concentrations up to a few percent were achieved without showing significant degradation in the crystalline quality or optical characteristics. Low electrical resistivity was maintained
J. Pierce Fix   +10 more
wiley   +1 more source

Dynamical Monte Carlo Simulations of 3-D Galactic Systems in Axisymmetric and Triaxial Potentials

open access: yes, 2017
We describe the dynamical behavior of isolated old (> 1 G yr) objects-like Neutron Stars (NSs). These isolated NSs are evolved under smooth, time-independent, 3-D gravitational potentials, axisymmetric and with a triaxial dark halo.
Taani, Ali, Vallejo, Juan C.
core   +1 more source

A diagrammatic approach to Kronecker squares [PDF]

open access: yes, 2014
In this paper we apply a method of Robinson and Taulbee for computing Kronecker coefficients together with other ingredients and show that the multiplicity of each component in a Kronecker square can be obtained from an evaluation of a certain polynomial,
Vallejo, Ernesto
core   +5 more sources

Siete dimensiones de la música Sexual: Comportamiento sexual monódico y diádico en parejas

open access: yesPsiquemag, 2023
El comportamiento sexual íntimo de las parejas (normales o no-patológicas) deben ser descritos por los psicólogos, para ello usan dos perspectivas; una es la primera a) psicopatológica del DSM 5 y CIE-10 o, la segunda b) la perspectiva de la psicología ...
José Luis Pereyra Quiñones   +6 more
doaj   +1 more source

Análisis de un simulacro cultural en los personajes femeninos de La casa de las dos palmas

open access: yesEstudios de Literatura Colombiana, 2013
Este artículo aborda el tema de la mujer, esbozando el contexto y la participación de algunos personajes femeninos en la novela La casa de las dos palmas, del escritor antioqueño Manuel Mejía Vallejo.
Claudia Patricia Acevedo Gaviria
doaj   +1 more source

Fernando Vallejo [PDF]

open access: yes, 2010
En este artículo explico algunas posibles vías a través de las cuales se pueden establecer vínculos entre La Puta de Babilonia y el cinismo griego, destacando la estretegia retórica que usa Vallejo para “cobrar[le] cuentas” a la “ramera de Babilonia”
Martínez Millán, Hernán
core   +1 more source

Reconstructing the metric of the local Universe from number counts observations

open access: yes, 2017
Number counts observations available with new surveys such as the Euclid mission will be an important source of information about the metric of the Universe.
Romano, Antonio Enea   +1 more
core   +1 more source

International trade, migration and investment with horizontal product differentiation and free entry and exit of firms [PDF]

open access: yes
This paper builds a circular road model of the world with horizontal product differentiation and free entry and exit of firms, to show that freer international trade increases welfare -with ideal variety preferences- through the exploitation of economies
Hernan Vallejo
core   +3 more sources

Características asociadas a la depresión, ansiedad y estrés en estudiantes universitarios

open access: yesEnfermería Global, 2023
Introducción: La presente investigación se enfocó en analizar las características asociadas a la depresión, ansiedad y estrés en estudiantes universitarios en tiempos de pandemia COVID-19. Método: El estudio fue de diseño no experimental, correlacional,
Helen Catalina Rabanal León   +5 more
doaj   +1 more source

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