Results 61 to 70 of about 2,128,139 (272)

Central limit theorem for fluctuations in the high temperature region of the Sherrington-Kirkpatrick spin glass model [PDF]

open access: yes, 2002
In a region above the Almeida-Thouless line, where we are able to control the thermodynamic limit of the Sherrington-Kirkpatrick model and to prove replica symmetry, we show that the fluctuations of the overlaps and of the free energy are Gaussian, on ...
Aizenman M.   +14 more
core   +2 more sources

Mercados de drogas, guerra e paz no Recife

open access: yes, 2017
Este artigo procura discutir as possiveis conexoes entre o funcionamento de diferentes mercados de drogas e a violencia na cidade do Recife. Os autores propoem que mercados abertos e descobertos, como o do crack, sao mais propicios a violencia, ao ...
Jean Daudelin, José Luiz Ratton
semanticscholar   +1 more source

Digital Networks in Language Learning: Instant Messaging and the Practice and Acquisition of Writing Skills [PDF]

open access: yes, 2012
The advance of globalization and the information technology revolution call for fundamental changes in foreign language teaching and learning. However, according to Kern and Warschauer [1], “the computer, like any other technological tool used in ...
Guerra, Luis
core  

Model simulations of complex dust emissions over the Sahara during the West African monsoon onset [PDF]

open access: yes, 2012
The existing limitations in ground-based observations in remote areas in West Africa determine the dependence on numerical models to represent the atmospheric mechanisms that contribute to dust outbreaks at different space-time scales.
Cavazos Guerra, Carolina, Todd, Martin
core   +3 more sources

Del estado del arte y la experiencia internacional en materia de reintegración

open access: yesEstudios en Seguridad y Defensa, 2010
Entre los expertos existe consenso de que un proceso exitoso de reintegración depende de la forma cómo se hayan concebido e implementado las fases previas de desmovilización y desarme así como la capacidad de las instituciones político-administrativas y
Joaquín Romero Herrera   +1 more
doaj   +1 more source

Restricciones de las Fuerzas Militares a causa de los cambios de gobierno y sus políticas públicas y de gobierno en el periodo 2010-2022 en Colombia

open access: yesOpinión Jurídica, 2020
Las Fuerzas Militares de Colombia juegan un papel importante que se enmarca en la seguridad y defensa nacional y en los intereses del Estado. También han adquirido un rol importante en la sociedad fungiendo labores y funciones que, dentro de muchos ...
Paola Alexandra Sierra-Zamora   +2 more
doaj   +1 more source

Victory beyond superiority

open access: yesColeção Meira Mattos, 2022
Current state of international affairs shows the rebirth of near-peer competition. This unveils the likelihood of a conventional conflict between great powers.
Carlos Macedo   +2 more
doaj   +1 more source

Existence of optimal boundary control for the Navier-Stokes equations with mixed boundary conditions [PDF]

open access: yes, 2015
Variational approaches have been used successfully as a strategy to take advantage from real data measurements. In several applications, this approach gives a means to increase the accuracy of numerical simulations.
Guerra, Telma   +2 more
core   +2 more sources

El terrorismo contemporáneo. Un análisis más allá de lo elemental

open access: yesEstudios en Seguridad y Defensa, 2022
Hablar de terrorismo siempre será algo complejo; especialmente, por la carga histórica que tiene en la actualidad. Sin embargo, no es un fenómeno reciente en la historia del sistema internacional, ni es exclusivo de una sociedad o un grupo humano ...
Luis Alexander Montero-Moncada   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy