نتایج جستجو برای: transition probability matrics

تعداد نتایج: 471268  

Journal: :Adicciones 2016
Susana Al-Halabí Sergio Fernández-Artamendi Eva M Díaz-Mesa Leticia García-Álvarez Gerardo Flórez Emilia Martínez-Santamaría Manuel Arrojo Pilar A Saiz M Paz García-Portilla Julio Bobes

People with schizophrenia constitute a substantial part of the people who still smoke. Regarding cognitive performance, the self-medication hypothesis states that patients smoke to improve their cognitive deficits based on the stimulating effects of nicotine. The aim of this paper is to describe in detail the methodology used in the COGNICO study. A quasi-experimental, observational, prospectiv...

2016
Haitao Zhang Zewei Chen Zhao Liu Yunhong Zhu Chenxue Wu

Spatial-temporal k-anonymity has become a mainstream approach among techniques for protection of users' privacy in location-based services (LBS) applications, and has been applied to several variants such as LBS snapshot queries and continuous queries. Analyzing large-scale spatial-temporal anonymity sets may benefit several LBS applications. In this paper, we propose two location prediction me...

زهره کارگر , , وحید دهقانی, ,

In this paper, we have presented the optimized BCS formalism using the isothermal probability distribution. The effect of statistical fluctuations on thermodynamical properties of nuclei has been investigated. The average gap parameter is calculated and then the energy, the entropy and the heat capacity are evaluated. The resulting values are compared with results of the standard BCS and the ...

Journal: :The American journal of drug and alcohol abuse 2013
Ludwing Flórez-Salamanca Roberto Secades-Villa Deborah S Hasin Linda Cottler Shuai Wang Bridget F Grant Carlos Blanco

BACKGROUND Little is known about the transition from substance abuse to substance dependence. OBJECTIVES This study aims to estimate the cumulative probability of developing dependence and to identify predictors of transition to dependence among individuals with lifetime alcohol, cannabis, or cocaine abuse. METHODS Analyses were done for the subsample of individuals with lifetime alcohol ab...

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