Search results for "value"
showing 10 items of 5321 documents
Aspekty edukacji przyszłych nauczycieli ku wartościom
2018
Wraz z upływem czasu i zmieniającym się obszarem oddziaływania na człowieka różnorodnych czynników wartości ulegają przekształceniom, zmieniając swoje miejsca w strukturze hierarchicznej. Współcześnie pożądane i lansowane są jednostki ludzkie mające pewne zasoby wiedzy i działające według kanonu zasad i wartości. W aspekcie edukacyjnym wartości nabierają szczególnego znaczenia. W tekście zostały omówione niektóre z nich.
An appraisal of the fit of a cognitive behavioural model of headache in University students
2018
The aim of this study was to evaluate the fit of a cognitive behavioural model of headache in the population of University students, from Córdoba,Argentina. The direct and indirect contributions to pain intensity of control beliefs, beliefs and thoughts about pain and coping strategies weredetermined, as were the direct contributions of pain behaviours and disability. The sample was comprised of 382 students of both genders fromseveral Universities. Multiple instruments were administered to measure the variables proposed in the cognitive behavioural model of headachefollowed by a descriptive and exploratory analysis of the data. Structural equation modelling was used and revealed an accepta…
Quality of Life of the Guaraní Community
2017
Toward the end of the nineteenth century, Ferdinand Tonnies distinguished two forms of clustering of base: community and society, defining the community as that form of socialization in which subjects, according to their common origin, local proximity or shared values, had attained a degree of implicit consensus. Currently, it can be understood as locality and as a group relationship, emphasizing the first a physical/geographical proximity and the second, interpersonal relationships. Furthermore, considering quality of life, Tonon (2007) points out that its study concerns the material and psychosocial environment, recognizing two areas of well-being: the social and the psychological, the la…
Age-Structured Human Population Dynamics
2006
ABSTRACT A von Foerster-McKendrick model to study age-structured human population dynamics is presented in this paper. Forecasts of population density (population per age unit) depending on ages are possible using this model. The model consists of a quasi-linear first order partial differential equation for the dynamics of population density per age-unit (except for the zero-age), a boundary condition for the births flow at zero-age, and an initial condition for the population density at the initial instant. A general solution independent of the particular human-system under study is obtained based on some hypotheses about the mathematical structure of its input variables. The model has bee…
Review of studies of polymorphic blood systems in the Aymara indigenous population from Bolivia, Peru, and Chile.
1995
A review was made of all studies available from the literature referring to polymorphic blood systems of South American Aymara Indians. 33 original papers published up to 1990 covering a period of 45 years were summarized. Aymara samples were considered from a total of 55 localities in Bolivia, Peru, and Chile. Gene frequencies were tabulated for 21 polymorphic genetic systems comprising blood groups (AB0, MNSs, P, Rh, Lu, K, Le, Fy, Jk, Di), erythrocyte enzyme groups (AcP, 6PGD, PGM1, AK, ADA, EsD), and plasma protein groups (Hp, Tf, Gc, Gm, Km). Weighted average and range over all Aymara samples were computed for each blood system and compared with corresponding mean value and range in So…
Existence and uniqueness results for a nonlinear evolution equation arising in growing cell populations
2014
Abstract The present paper is concerned with a nonlinear initial–boundary value problem derived from a model introduced by Rotenberg (1983) describing the growth of a cell population. Each cell of this population is distinguished by two parameters: its degree of maturity μ and its maturation velocity v . At mitosis, the daughter cells and mother cells are related by a general reproduction rule. We prove existence and uniqueness results in the case where the total cross-section and the boundary conditions are depending on the total density of population. Local and nonlocal reproduction rules are discussed.
Loneliness and its relation to mental health in the general population: Validation and norm values of a brief measure
2021
Abstract Background Loneliness has been increasingly recognized as an important determinant of mental health. The purposes of this study were to (1) determine the degree of loneliness of women and men across different age groups, (2) explore its association with distress, (3) psychometrically evaluate the Three-Item Loneliness Scale, (4) provide norm values. Methods The Three-Item Loneliness Scale was applied in a representative survey of the German population (N=2527; 14–95 years). Standardized scales were used measuring distress (depression and anxiety symptoms, perceived stress, hopelessness, suicidal ideation, fatigue, life satisfaction). Factor structure and measurement invariance acro…
An existence and uniqueness principle for a nonlinear version of the Lebowitz-Rubinow model with infinite maximum cycle length
2017
The present article deals with existence and uniqueness results for a nonlinear evolution initial-boundary value problem, which originates in an age-structured cell population model introduced by Lebowitz and Rubinow (1974) describing the growth of a cell population. Cells of this population are distinguished by age a and cycle length l. In our framework, daughter and mother cells are related by a general reproduction rule that covers all known biological ones. In this paper, the cycle length l is allowed to be infinite. This hypothesis introduces some mathematical difficulties. We consider both local and nonlocal boundary conditions.
How Do Young People Cope with Job Flexibility?: Demographic and Psychological Antecendents of the Resistance to Accept a Job with Non-Preferred Flexi…
2002
La flexibilite est souvent vue comme condition necessaire a la survie des marches de travail nationaux et a celle des organisations dans un monde en rapide changement ou s’accroit la competition globale. Elle a adopte diverses formes tels les contrats a duree determinee, l’externalisation, les horaires flexibles, le temps partiel, les heures complementaires, le roulement fonctionnel. De plus, il a ete declare que la flexibilite organisationnelle se doit d’etre accompagnee d’une flexibilite personnelle. Quoi qu’il en soit, face aux nouvelles opportunites de travail, les gens different tant sur le plan de leurs preferences que sur celui de leur comportement. Le but de cette etude est d’identi…
A two-point boundary value formulation of a mean-field crowd-averse game
2014
Abstract We consider a population of “crowd-averse” dynamic agents controlling their states towards regions of low density. This represents a typical dissensus behavior in opinion dynamics. Assuming a quadratic density distribution, we first introduce a mean-field game formulation of the problem, and then we turn the game into a two-point boundary value problem. Such a result has a value in that it turns a set of coupled partial differential equations into ordinary differential equations.