Formal Distributions
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Influence of migration on the thought process of individuals at ultra-high risk for psychosis
Objective: To assess the influence of migration on the psychopathological presentation of individuals at ultra-high risk for psychosis (UHR) in São Paulo, Brazil. Methods: This study is part of the Subclinical Symptoms and Prodromal Psychosis (SSAPP) project, a cohort study in São Paulo, Brazil, designed to follow individuals at UHR. After screening with
Braz. J. Psychiatry. Publicado em: 2021-06
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2. A DISTRIBUTION FOR THE SERVICE MODEL
ABSTRACT In this paper, we propose a distribution that describes a specific system. The system has a heavy traffic, a fast service and the service rate depends on state of the system. This distribution we call the Maximum-Conway-Maxwell-Poisson-exponential distribution, denoted by MAXCOMPE distribution. The MAXCOMPE distribution is obtained by compound distr
Pesqui. Oper.. Publicado em: 2015-12
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3. Transição quântico-clássica em sistemas com propensão coletiva / Quantum-to-classical transition in systems with collective propensity
In this thesis, we studied the behavior of quantum systems which in the classical limit may exhibit either regular or chaotic behavior. Our study was based on the dynamical characterization of the, chaotic or regular, behavior of these systems in the classical limit through the analysis of the structure of phase-space distributions functions. Particularly, w
Publicado em: 2010
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4. Introduction to the theory of conformal algebra and conformal module / Introdução à teoria de álgebras e módulos conformais.
Definition, classification, properties and basic examples about conformal superalgebras and conformal modules.
Publicado em: 2008
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5. The flavor asymmetry in the polarized proton sea
We perform a careful study on the effect of the Pauli blocking to the light polarized antiquark structure of the proton sea. We develop the formal expressions for the polarized antiquark distributions, highlighting the role played by quark statistics and the vacuum structure. The ratio involving the polarized antiquarks is calculated. In particular, it is fo
Brazilian Journal of Physics. Publicado em: 2004-03
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6. Hutchinson's duality: The once and future niche
The duality between “niche” and “biotope” proposed by G. Evelyn Hutchinson provides a powerful way to conceptualize and analyze biogeographical distributions in relation to spatial environmental patterns. Both Joseph Grinnell and Charles Elton had attributed niches to environments. Attributing niches, instead, to species, allowed Hutchinson's key inn
National Academy of Sciences.
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7. Mixed-membership models of scientific publications
PNAS is one of world's most cited multidisciplinary scientific journals. The PNAS official classification structure of subjects is reflected in topic labels submitted by the authors of articles, largely related to traditionally established disciplines. These include broad field classifications into physical sciences, biological sciences, social sciences, and
National Academy of Sciences.
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8. Occurrence of cancer in Asians and non-Asians.
Cancer registration data for a defined geographical area, covering a seven year period, were modified to include the variable "Asian ethnic origin." The data were then used to test the hypothesis that a difference would be found between Asians and non-Asians in the pattern of cancer by site. Whereas the incidence of cancer of all sites appeared to be signifi
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9. Evidence for Duplication of the Structural Genes Coding Plastid and Cytosolic Isozymes of Triose Phosphate Isomerase in Diploid Species of Clarkia
Formal genetic analyses of the mode of inheritance of the multiple plastid and cytosolic isozymes of triose phosphate isomerase (TPI, EC 5.3.1.1) in annual diploid species of Clarkia (Onagraceae), native to California, suggest that each set of isozymes is specified by duplicate structural genes. In contrast, most diploid plant species possess one plastid and