207 research outputs found
Estudio sobre la preocupación por la imagen corporal y la presencia de ideas de referencia : análisis en función del género
This research, which is explained below, is a contribution to a broader study on Body
Dysmorphic Disorder. Specifically, we propound to demonstrate the close links that exist between
concern for body image and the ideas of reference, as well as both variables in the gender. We
will also study links with the age for going deeper into these concerns for body image. This study
included 296 non-university people of Spanish nationality and aged between 18 and 65. These
people filled out several questionnaires, and the information was analyzed by SPSS program in
its last version. The results confirm that a significant correlation exists between the concern for
body image , deas of reference and genderEl trabajo que se presenta a continuación constituye una aportación a un estudio más amplio
sobre el Trastorno Dismórfico Corporal. Concretamente proponemos demostrar la estrecha
relación existente entre la preocupación por la imagen corporal y las ideas de referencia, así
como de ambas variables con el género. Para profundizar en las preocupaciones por la imagen
corporal, estudiaremos su relación también con la edad. En el estudio participaron 296 sujetos no
universitarios, de nacionalidad española y con edades comprendidas entre 18 y 65 años. Estos
sujetos autocumplimentaron varios cuestionarios, y los datos obtenidos fueron analizados por el
programa SPSS en su última versión. Los resultados confirman que existe una correlación
significativa entre la preocupación por la imagen corporal, las ideas de referencia y el género
Archival strategies and social order during the Spanish Civil War and the Francoist dictatorship
Este estudio presenta una reflexión sobre la capacidad de los archivos para revelar la naturaleza del orden social que los genera, especialmente en situaciones políticas actuadas por dinámicas de conflicto y resistencia. Como paradigmas de esta capacidad del archivo, se han seleccionado tres casuísticas documentales de la Guerra Civil y la dictadura franquista: en primer lugar, tres archivos del orden social no sublevado; en segundo lugar, el archivo del Servicio de Información y Policía Militar, presentando sus series menos exploradas; finalmente, los sumarísimos, por su condición de documentación de obligada referencia en investigaciones sobre la represión franquista.This study presents a reflection on the ability of archives to reveal the nature of the social order that generates them, especially in political situations acted on by dynamics of conflict and resistance. As paradigms of this ability of the archives, three samples of the Spanish Civil War and the Francoist dictatorship have been selected: first, three archives of the non-rebeled social order; secondly, the archive of the Servicio de Información y Policía Militar, introducing the less explored series; finally, the sumarísimos, due to its condition of documentation of required reference in researches on Francoist repression
An algorithm to compute the average-of-awards rule for claims problems with an application to the allocation of CO2 emissions
The set of awards vectors for a claims problem coincides with the core of the associated coalitional game. We analyze the structure of this set by defining for each group of claimants a, so called, utopia game, whose core comprises the most advantageous imputations available for the group. We show that, given a claims problem, the imputation set of the associated coalitional game can be partitioned by the cores of the utopia games. A rule selects for each claims problem a unique allocation from the set of awards vectors. The average-of-awards rule associates to each claims problem the geometric center of the corresponding set of awards vectors. Based on the decomposition of the imputation set, we obtain an interpretation of the average-of-awards rule as a point of fairness between stable and utopia imputations and provide a backward recurrence algorithm to compute it. To illustrate our analysis, we present an application to the distribution of CO2 emissions.Agencia Estatal de Investigación | Ref. PID2019‐106281GB‐I00Agencia Estatal de Investigación | Ref. PID2021‐124030NB‐C33Xunta de Galicia | Ref. ED481A 2021/325Universidade de Vigo/CISU
Deviation from proportionality and Lorenz-domination for claims problems
The Lorenz order is commonly used to compare rules for claims problems. In this paper, we incorporate the average of awards rule, the mean value of the set of awards vectors for a claims problem, to the ranking of the standard rules by proving some properties that are satisfied by this rule. We define a pair of coefficients, inspired by the Gini index, aimed at measuring, for any given claims problem, the discrepancy between the awards assigned by a rule and the proportional division. We generalize the proportionality deviation indices by introducing coefficients that measure the deviation between the awards selected by any two division rules. We show how these deviation indices are related to the Lorenz order.Ministerio de Ciencia, Innovación y Universidades | Ref. MTM2017-87197-C3-2-PMinisterio de Ciencia, Innovación y Universidades | Ref. PID2019-106281GB-I00Xunta de Galicia | Ref. ED481A 2021/32
Refining the Lorenz‐ranking of rules for claims problems on restricted domains
The comparison of the central rules for claims problems, according to the Lorenz order, has been studied not only on the entire set of problems but also on some restricted domains. We provide new characterizations of the adjusted proportional rule as being Lorenz‐maximal or Lorenz‐minimal within a class of rules on the half‐domains. Using this result, we rank the adjusted proportional, the minimal overlap, and the average‐of‐awards rules by analyzing whether or not these rules satisfy progressivity and regressivity on the half‐domains. We also find that the adjusted proportional rule violates two well‐known claim monotonicity properties.Agencia Estatal de Investigación | Ref. PID2019‐106281GB‐I00Agencia Estatal de Investigación | Ref. PID2021‐124030NB‐C33Xunta de Galicia | Ref. ED481A 2021/325Universidade de Vigo/CISU
Shear-induced microstructural transitions in aqueous systems containing an esterquat cationic surfactant
Se presenta un estudio basado en técnicas reológicas y de microscopía electrónica de barrido de bajas temperaturas (cryo-SEM) sobre los cambios de microestructura provocados por el flujo en cizalla de dispersiones acuosas de un tensioactivo catiónico tipo esterquat. Se comparan micrografías de cryo-SEM y las respuestas bajo cizalla oscilatoria de dispersiones sin y con cloruro de calcio. Esta última no presenta zona de comportamiento viscoelástico lineal, apuntando su respuesta no lineal a un fenómeno de estructuración inducida por cizalla. Ensayos transitorios de inicio al flujo, entre 0,1s-1 y 2000s-1, confirman que se producen aumentos de viscosidad más acusados con el tiempo de flujo a medida que aumenta la velocidad de cizalla. La técnica de cryo-SEM apoya que los resultados transitorios se deben a que un exceso de energía mecánica provoca transiciones de bicapas de tensioactivo a vesículas. Diferentes ensayos reológicos realizados en serie avalan la naturaleza irreversible, en la escala de tiempo de esta investigación, de las transiciones microestructurales inducidas por cizalla. Se demuestra que a pesar de la presencia de cloruro de calcio (0,1%), la aplicación de una velocidad de cizalla excesiva puede dar lugar a la aparición de respuestas viscoelásticas lineales significativas.This paper deals with a rheological and microstructural (cryo- SEM) characterization of shear-induced microstructure transitions in aqueous dispersions of an esterquat cationic surfactant. Cryo-SEM micrographs and oscillatory shear results of systems containing or not calcium chloride are compared. The addition of calcium chloride precluded the occurrence of significant viscoelastic properties and the estimation of the linear viscoelastic range. The non-linear oscillatory response pointed to the occurrence of incipient shear-induced build-up phenomena. Start-up flow tests between 0.1s-1 and 2000s-1 showed that the increase of viscosity with shear time was more marked as shear rate was increased. Cryo-SEM observations supported that build-up results in transient flow were due to an excess of mechanical energy, which resulted in transitions from surfactant bilayers to vesicles. Several series of rheological tests were carried out to demonstrate that shear-induced microstructure transitions were irreversible in the time scale of this investigation. Despite the addition of calcium chloride (0.1% wt), the shear-induced dispersion of vesicles may provoke the onset of significant linear viscoelasticity.Es presenta un estudi basat en tècniques reològiques i de microscòpia electrònica d’escombratge de baixes temperaturas (cryo-SEM) sobre els canvis de microestructura provocats pel flux en cisalla de dispersions aquoses d’un tensioactiu catiònic tipus esterquat. Es comparen micrografies de cryo-SEM i les respostes sota cisallament oscil•latòri de dispersions sense i amb clorur de calci. Aquesta darrera no presenta zona de comportament viscoelàstic lineal, apuntant la seva resposta no lineal a un fenomen d’estructuració induïda per cisallament. Assaigs transitoris d’inici al flux, entre 0,1s-1 y 2000s-1, confirmen que es produeixen augments de viscositat més acusats amb el temps de flux a mesura que augmenta la velocitat de cisallament. La técnica de cryo-SEM recolza que els resultats transitoris es deuen a que un excés d’energia mecànica provoca transicions de bicapes de tensioactiu a vesícules. Diferents assaigs reològics realitzats en sèrie avalen la naturalesa irreversible, a la escala de temps d’aquesta investigació, de les transicions microestructurals induïdes per cisallament. Es demostra que, tot i la presència de clorur de calci (0,1%), l’aplicació de una velocitat de cisallament excessiva pot donar lloc a l’aparició de respostes viscoelàstiques lineals significatives
Validation of Spanish Language Evaluation Instruments for Body Dysmorphic Disorder and the Dysmorphic Concern Construct
Dysmorphic concern (DC) refers to excessive preoccupation with a slight or imagined defect in physical appearance with social avoidance and behavior directed at controlling the defect in appearance. This study attempted to adapt the factor structure of two instruments that cover the DC construct, the Dysmorphic Concern Questionnaire (DCQ) and the Body Dysmorphic Disorder Examination Self-Report (BDDE-SR), to Spanish and establish their psychometric properties. A total of 920 subjects (62.7% women, Mage = 32.44 years) participated. Exploratory and Confirmatory Factor Analysis of both scales found adequate goodness of fit indices. A one-dimensional structure was found for the DCQ and two first-order factors (dissatisfaction/preoccupation with body image (BI) and BI avoidance behavior) were identified for the BDDE-SR. The psychometric test–retest reliability and validity properties (content, convergent, and discriminant) were satisfactory. It is suggested that the DC construct includes both cognitive and behavioral aspects and may represent a continuum of severity with Body Dysmorphic Disorder at the end.European Union’s Seventh Framework Programme for research, technological development and demonstration under [grant agreement no 31674
El papel de la autoconciencia en la preocupación por la imagen corporal en población general
Antecedentes: La autoconciencia se contempla de manera dicotómica; por un lado, como un estado transitorio inducido por estímulos contextuales y por otro, como una predisposición del individuo a focalizar su atención sobre aspectos internos o externos. Hay estudios que señalan que las personas con alta autoconciencia pública se preocupan en mayor medida por cómo son percibidas por los demás y, consecuentemente, realizan conductas que según ellas, atenúan las valoraciones negativas por parte de otros. Objetivo. Se pretende estudiar el papel que tiene la autoconciencia y sus dimensiones (privada, pública y ansiedad social) en la preocupación por la imagen corporal. Se predice que tanto la autoconciencia pública, como la privada y la ansiedad social, tienen un peso importante en la preocupación por el cuerpo, especialmente entre las mujeres. Método: La muestra la componen 475 participantes de ambos sexos (307 mujeres y 168 hombres) con edades comprendidas entre 18 y 65 años (Media=37,85 y DT=13,37). ara la evaluación se utilizó el Dysmorphic Concern Questionnaire (DCQ Cuestionario de preocupaciones dismórficas) y Self-Consciousness Scale - Revised (SCS-R Escala de Autoconciencia). Se empleó un diseño transversal (una medida) para un método relacional. Ancova de la Autoconciencia (teniendo en cuenta sus tres componentes), preocupación dismórfica, edad y género. Resultados: Se obtienen relaciones significativas entre las preocupaciones dismórficas y la autoconciencia, tanto globalmente como por factores. Se obtiene un patrón diferenciado para estos criterios en función del género y la edad. Conclusiones: La identificación de los niveles de autoconciencia asociados a la preocupación por la imagen corporal puede ser relevante para la salud física y psicológica por su repercusión en el trastorno dismórfico corporal.Background: Self-consciousness, is contemplated dichotomously; on the one hand, as a transitory state induced by contextual stimuli and secondly, as a predisposition of the individual to focus attention on internal or external aspects. Studies show that people with high public self-consciousness are concerned more by how they are perceived by others and consequently perform behaviors that, according to them, attenuate the negative evaluations by others. Objective : The aim is to study the role of the self - consciousness and its dimensions (private, public and social anxiety) in concern with body image. It is predicted that both public self - consciousness, and private and social anxiety, have an important role in the body concern, particularly in women. Method: 475 male and female participants (307 women and 168 men) aged between 18 and 65 years (average = 37,85 and SD = 13,37). For the evaluation used the Dysmorphic concern questionnaire (DCQ) and Self - Consciousness Scale (SCS-R). Background: Self-consciousness, is contemplated dichotomously; on the one hand, as a transitory state induced by contextual stimuli and secondly, as a predisposition of the individual to focus attention on internal or external aspects. Studies show that people with high public self-consciousness are concerned more by how they are perceived by others and consequently perform behaviors that, according to them, attenuate the negative evaluations by others
Análisis estructural de la economía mexicana para el año 2008
Identifying productive sectors with the capacity to boost the economy is fundamental to policy design. This paper analyzes the structure of the Mexican economy, using general equilibrium linear models based on a social accounting matrix. First, we analyze key sectors, determining direct, indirect, and induced effects. Then, we elaborate a three-dimensional landscape of the economy and identify labor multipliers. Finally, income-expenditure distribution of households is analyzed. Among other results, the most important sectors are commerce activities. Less important sectors are the construction, cultural and sporting entertainment services, generation, transmission and distribution of electricity, corporate services and mining
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