نتایج جستجو برای: singularperturbation problems
تعداد نتایج: 583420 فیلتر نتایج به سال:
out of the minds of the monks he has had psychoanalysed by a distinguished Jewish woman, but also how to purge his own brain of such poison. The man is Gregoire Lemercier, the sixth of an artillery officer's thirteen children who feared his father and at the same time wanted to emulate him. When he became a priest he transferred his complex to God. His autoanalytical sermons bloom with double f...
Let a(n; k) denote the number of combinatorial structures of size n with k components. One often has P n;k a(n; k)x y=n! = exp yC(x) , where C(x) is frequently the exponential generating function for connected structures. How does a(n; k) behave as a function of k when n is large and C(x) is entire or has large singularities on its circle of convergence? The Flajolet-Odlyzko singularity analysi...
OBJECTIVE To estimate the prevalence of physical violence and its association with sociodemographic aspects, stressful life events, and the use of health services due to emotional problems. METHODS A cross-sectional population-based study was conducted with a sample of 1,954 14-year-old or older inhabitants of the city of Canoas (Southern Brazil). They were selected by means of conglomerate s...
This article explores the Birch and Swinnerton-Dyer Conjecture, one of the famous Millennium Prize Problems. In addition to providing the basic theoretic understanding necessary to understand the simplest form of the conjecture, some of the original numerical evidence used to formulate the conjecture is recreated. Recent results and current problems related to the conjecture are given at the en...
This article describes a case study in the use of the Family Check-Up (FCU), a family-based and ecological preventive intervention for children at risk for problem behavior. The FCU is an assessment-driven intervention that utilizes a health maintenance model; emphasizes motivation for change; and offers an adaptive, tailored approach to intervention. This case study follows one Caucasian famil...
Research suggests that there is an age-related decline in the processing of negative emotional information, which may contribute to the reported decline in emotional problems in older people. We used a signal detection approach to investigate the effect of normal aging on the interpretation of ambiguous emotional facial expressions. High-functioning older and younger adults indicated which emot...
We consider the capacitated domination problem, which models a service-requirement assigning scenario and which is also a generalization of the dominating set problem. In this problem, we are given a graph with three parameters defined on the vertex set, which are cost, capacity, and demand. The objective of this problem is to compute a demand assignment of least cost, such that the demand of e...
This study examined the stability of the child and maternal affective expression and maternal responsiveness and the mutual influence of child and maternal expression of emotion. The authors tested whether maternal depression and child problem behavior were associated with the pattern of emotional exchange within the mother-child dyads. The sample consisted of 69 mother-child dyads (children ag...
The present study investigated the role of low academic competence in the emergence of depressive cognitions and symptoms. Structural equation modeling was conducted on a longitudinal sample of African American boys (n = 253) and girls (n = 221). Results supported the hypothesized path models from academic competence in 1st grade to depressive symptoms in 7th grade, controlling for a host of co...
This study presents a reanalysis of data from an effective preventive intervention for children from divorced families to test mediation of program effects. The study involved 157 children, age 9-12 years, who were randomly assigned to a parenting program or a literature control condition. Program effects to reduce posttest internalizing problems were mediated through improvement in mother-chil...
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