Search results for "value"

Invariants of equivariant algebraic vector bundles and inequalities for dominant weights

1998

Marginal contribution, reciprocity and equity in segregated groups: Bounded rationality and selforganization in social networks

2007

We study the formation of social networks that are based on local interaction and simple rule following. Agents evaluate the profitability of link formation on the basis of the Myerson-Shapley principle that payoffs come from the marginal contribution they make to coalitions. The NP-hard problem associated with the Myerson-Shapley value is replaced by a boundedly rational 'spatially' myopic process. Agents consider payoffs from direct links with their neighbours (level 1), which can include indirect payoffs from neighbours' neighbours (level 2) and up to M-levels that are far from global. Agents dynamically break away from the neighbour to whom they make the least marginal contribution. Com…

Impact of Parenting Styles on Adolescents’ Self-Esteem and Internalization of Values in Spain

2007

The relationship of parenting styles with adolescents’ outcomes was analyzed within a sample of Spanish adolescents. A sample of 1456 teenagers from 13 to 16 years of age, of whom 54.3% were females, reported on their parents’ child-rearing practices. The teenagers’ parents were classified into one of four groups (authoritative, authoritarian, indulgent, or neglectful). The adolescents were then contrasted on two different outcomes: (1) priority given to Schwartz’s selftranscendence (universalism and benevolence) and conservation (security, conformity, and tradition) values and (2) level of self-esteem (appraised in five domains: academic, social, emotional, family and physical). The result…

Elliptic 1-Laplacian equations with dynamical boundary conditions

2018

Abstract This paper is concerned with an evolution problem having an elliptic equation involving the 1-Laplacian operator and a dynamical boundary condition. We apply nonlinear semigroup theory to obtain existence and uniqueness results as well as a comparison principle. Our main theorem shows that the solution we found is actually a strong solution. We also compare solutions with different data.

Value of the Axial-Vector Coupling Strength in β and ββ Decays : A Review

2017

In this review the quenching of the weak axial-vector coupling constant, $g_{\rm A}$, is discussed in nuclear $\beta$ and double-$\beta$ decays. On one hand, the nuclear-medium and nuclear many-body effects are separated, and on the other hand the quenching is discussed from the points of view of different many-body methods and different $\beta$-decay and double-$\beta$-decay processes. Both the historical background and the present status are reviewed and contrasted against each other. The theoretical considerations are tied to performed and planned measurements, and possible new measurements are urged, whenever relevant and doable. Relation of the quenching problem to the measurements of …

La finalidad y el infinitivo preposicional del español: rasgos heredados desde la construcción final en el infinitivo actual.

2020

En el español actual, existen diferentes ejemplos de infinitivos introducidos por una preposición aparentemente superflua: el infinitivo puede aparecer precedido por la preposición de (Le dijo de ir), por la preposición a (Lo mandó a callar) y por la preposición para (Le dijo para ir de inmediato). El objetivo de este trabajo es demostrar que la presencia de esta preposición está íntimamente ligado al valor final originario del infinitivo y que este origen tendría consecuencias tanto en la sintaxis actual de los verbos exhortativos y volitivos como en el aspecto léxico y gramatical que puede presentar el infinitivo, dependiendo del contexto sintáctico. A partir de la historia de la lengua, …

A Variationally Consistent Time Modelling of Elastic-Plastic Constitutive Equations

1991

A general energy-based time discretization method for evolutive analysis is presented. Most known time integration procedures (mid-point rule, backward difference, etc.) are shown to be particular cases of it. For space continuous systems, a sequence of weighted boundary value problems of deformation-theory plasticity are obtained, each characterizable by a number of variational principles useful for finite element discretization.

A generalized porous medium equation related to some singular quasilinear problems

2014

Abstract In this paper we study the existence and nonexistence of solutions for a Dirichlet boundary value problem whose model is { − ∑ m = 1 ∞ a m Δ u m = f in  Ω u = 0 on  ∂ Ω , where Ω is a bounded domain of R N , a m is a sequence of nonnegative real numbers, and f is in L q ( Ω ) , q > N 2 .

Optimal selection of thek best of a sequence withk stops

1997

We first consider the situation in which the decision-maker is allowed to have five choices with purpose to choose exactly the five absolute best candidates fromN applicants. The optimal stopping rule and the maximum probability of making the right five-choice are given for largeN eN, the maximum asymptotic value of the probability of the best choice being limN→∝P (win) ≈ 0.104305. Then, we study the general problem of selecting thek best of a sequence withk stops, constructing first a rough solution for this problem. Using this suboptimal solution, we find an approximation for the optimal probability valuesPk of the form $$P_k \approx \frac{1}{{(e - 1)k + 1}}$$ for any k eN.

Interference of left and right cerebellar rTMS with procedural learning.

2004

Abstract Increasing evidence suggests cerebellar involvement in procedural learning. To further analyze its role and to assess whether it has a lateralized influence, in the present study we used a repetitive transcranial magnetic stimulation interference approach in a group of normal subjects performing a serial reaction time task. We studied 36 normal volunteers: 13 subjects underwent repetitive transcranial magnetic stimulation on the left cerebellum and performed the task with the right (6 subjects) or left (7 subjects) hand; 10 subjects underwent repetitive transcranial magnetic stimulation on the right cerebellum and performed the task with the hand ipsilateral (5 subjects) or contral…