Texas A&M International University: Research Information Online (RIO)
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La convergencia de salas de redacción en Bolivia: la continuidad de la cultura impresa
No full textEstudios previos sobre el impacto de la tecnología en el periodismo tienden a concluir que los esquemas tradicionales quedaron atrás. Otros, enfocados en la convergencia, suelen abordarla como proceso de gestión, desarrollando modelos ideales de integración de redacciones. En este artículo examinamos los matices del desarrollo de la convergencia de redacciones en Bolivia, particularmente en los diarios La Razón y Página Siete. Bajo un enfoque metodológico cualitativo, indagamos en la convergencia a partir de diferentes factores asociados a ella (las rutinas de producción, la política institucional y la percepción de los periodistas). Los resultados sugieren que, si bien la digitalización ha implicado cambios en los periodistas y en su labor, la lógica del periodismo tradicional, anclada en el impreso, persiste en entornos convergentes. Encontramos que la convergencia se desarrolla, no como integración, sino como una cooperación ocasional de redacciones en términos de intercambio de datos y alertas mutuas de información. Ese proceso representa la pugna de dos culturas periodísticas diferenciadas, una buscando imponerse y mantenerse vigente por encima de la otra. Así, la investigación permite desmitificar aquellas corrientes teóricas que apuntan a la ruptura de los esquemas tradicionales del periodismo como un fenómeno generalizado y motivado por el desarrollo tecnológico
Mediaciones transversales en la construcción social de las mujeres ejecutivas
No full textTexto justificado en investigación teórica acerca de las mediaciones que reciben las mujeres ejecutivas de alta gerencia a lo largo de su vida y su entretejido en el camino de la crianza, relación con instituciones y medios de comunicación, con el objetivo de exponer las mediaciones de la familia, organización y medios de comunicación, así como su repercusión en la construcción social de las mujeres. El método de selección de las investigaciones incluidas fue a través de la pertinencia con el tema y la representación de las mujeres que actualmente ocupan los puestos ejecutivos. La mediación de la familia y la organización son fundamentales en la construcción social de la mujer de alta gerencia. Los medios de comunicación ocupan una relevancia distinta en el proceso, afectando en la creación de estereotipos disonantes entre la femineidad y el liderazgo
Intended and unintended benefits of specialty courts: results from a Texas DWI court
No full textSpecialty courts are a popular alternative to traditional solutions for addicted offenders and a large body of research exists regarding the effectiveness of these courts. Specialty court effectiveness is contentious, but methods used to investigate it commonly focus on recidivism while neglecting other aspects of court performance. The major purposes of this study are to determine the correlates to court clients’ drinking behavior and to explore how specialty court programing can be beneficial to clients beyond impacts on recidivism. We examined 154 clients from a South Texas DWI court. Participants were interviewed by trained researchers during intake, 6-month follow up, and the time of completion/discharge. Findings indicate that life circumstances such as employment, mental issues, and military experience influenced clients’ tendency to drink. Further, client drinking and drug use were substantially reduced by the end of the program and clients reported committing less crime. Finally, mental health issues such as depression and anxiety were alleviated by the time of the program’s conclusion. The findings contribute to the literature by complimenting previous findings on the correlates of problem drinking and substantiating benefits of specialty courts that go beyond recidivism
Local ultraconvergence of linear and bilinear finite element method for second order elliptic problems
No full textIn this article, local ultraconvergence in gradient of the bilinear and linear finite element solutions to two-dimensional second order elliptic problems has been investigated. Special interpolation postprocessing algorithms of numerical solutions by Richardson extrapolation have been developed. The local symmetry theory and estimates of discrete Green functions are used in the analysis. Numerical experiments are provided to confirm the theoretical findings
El mapa de los medios públicos de Ecuador: entre el auge y la ambigüedad
No full textEl panorama mediático del Ecuador, dominado tradicionalmente por grupos privados, experimentó profundos cambios durante la década del gobierno de Rafael Correa (2007-2017). Bajo el contexto político de una nueva izquierda regional y el establecimiento de una Ley Orgánica de Comunicación, surgieron una serie de empresas de comunicación dependientes del Estado, y su número, según datos oficiales, aparentemente ha seguido creciendo. Con el objetivo de transparentar esta información, este artículo presenta un mapa de medios públicos actualizado hasta diciembre de 2019. En primer lugar, se analizaron los catastros del Consejo de Regulación, Desarrollo y Promoción de la Información y Comunicación. Después, mediante una investigación de campo, que incluyó visitas a medios y entrevistas a ejecutivos y periodistas, se validaron los datos de casi un centenar de empresas. Los resultados del mapeo muestran inconsistencias en la conformación y la operación de ciertos medios públicos con respecto a su concepción ideal y la normativa ecuatoriana; también que la situación de medios privados bajo control del Estado es ambigua; y otros problemas que afectan la veracidad del registro de medios
Exclusion of trunk region reduces biological error but increases technical error of DXA lean soft tissue estimates from nonfasted assessments
No full textImplementation of an overnight fast is a pervasive recommendation prior to body composition assessment, but this is not always feasible. Previous research has indicated that for dual-energy X-ray absorptiometry (DXA) scans, the trunk region may be particularly susceptible to biological error induced by food and fluid intake. This analysis explored the potential utility of excluding the trunk region from nonfasted DXA scans. Recreationally active adults were assessed by DXA after an overnight fast and again after consumption of standardized high-carbohydrate and low-carbohydrate diets. The effects of food consumption on total and appendicular lean soft tissue (LST; ALST) and ALST-derived skeletal muscle mass (SMM) were evaluated via analysis of variance, and metrics of reliability were calculated. In both conditions, the constant error of nonfasted assessments was slightly lower when the trunk was excluded (ALST and SMM: 0.7-1.2%; LST: 1.5%). However, in both conditions, the total error, standard error of the estimate, and limits of agreement were higher for ALST and SMM (total error: 2.4-3.0%; standard error of the estimate: 2.2-2.8%; and limits of agreement: 4.5-5.6%) than LST (total error: 2.1%; standard error of the estimate: 1.3-1.4%; and limits of agreement: 2.5-2.8%) when expressed relative to mean values. The added technical error due to demarcation of body regions for ALST and SMM appears to outweigh the removal of biological error due to exclusion of the trunk. Although elimination of the trunk region is theoretically appealing for nonfasted DXA assessments, it is apparently an inferior method compared with utilizing whole-body LST
Trait expression through perceived job characteristics: A meta-analytic path model linking personality and job attitudes
No full textResearch has provided considerable support for the dispositional basis of job attitudes. However, the theoretical mechanisms that mediate such personality trait-job attitude relationships have been less forthcoming. Drawing from five-factor theory and self-verification theory, in the present study we developed and tested a meta-analytic path model linking the five-factor model (FFM) of personality to overall job attitudes (i.e., job satisfaction and affective organizational commitment) through employees\u27 perceptions of task and social job characteristics. In doing so, we reveal important work features through which each FFM trait is expressed to shape employee job attitudes. We discuss the implications of our results for both theory and practice and highlight future research directions for both personality trait and job attitudes inquiry
From composites to factors: Bridging the gap between PLS and covariance-based structural equation modelling
No full textPartial least squares (PLS) methods possess desirable characteristics that have led to their extensive use in the field of information systems, as well as many other fields, for path analyses with latent variables. Such variables are typically conceptualized as factors in structural equation modelling (SEM). In spite of their desirable characteristics, PLS methods suffer from a fundamental problem: Unlike covariance-based SEM, they do not deal with factors, but with composites, and as such do not fully account for measurement error. This leads to biased parameters, even as sample sizes grow to infinity. Anchored on a new conceptual foundation, we discuss a method that builds on the consistent PLS technique and that estimates factors, fully accounting for measurement error. We provide evidence that this new method shares the property of statistical consistency with covariance-based SEM but, like classic PLS methods, has greater statistical power. Moreover, our method provides correlation-preserving estimates of the factors, which can be used in a variety of other tests. For readers interested in trying it, the new method is implemented in the software WarpPLS. Our detailed discussion should facilitate the implementation of the method in any numeric computing environment, including open source environments such as R and GNU Octave
Functional Characterization of the Novel Gene CIA7 from Chlamydomonas Reinhardtii
Get PDFHeavy metal contamination presents a constant threat to biological systems. These metals interact with the catalytic-domain of enzymes, interfering with their normal rates of activity as well as inducing oxidative stress. Chlamydomonas reinhardtii is an excellent model organism used in studies of heavy metals due to its high endogenous tolerance. In C. reinhardtii, a novel gene, designated as CIA7, was isolated and hypothesized to confer tolerance to heavy metals. This was due to CIA7’s conserved Cys-residue motif and its homology in a number of bacterial metal binding proteins. This study aimed to demonstrate what role CIA7 exerts on tolerance towards Cd2+ stress in C. reinhardtii. The hypothesis was that the expression of CIA7 will contribute, at least in part, to an increased Cd-tolerance in C. reinhardtii, described by physiological markers of health, as well as intracellular accumulation of the metal. To functionally characterize CIA7: (1) comparative studies of chlorophyll fluorescence and cell size in WT and cia7- in the presence of Cd2+, (2) comparative studies of Cd2+ bioaccumulation in WT and cia7- strains in various growth media, and (3) Cd2+ tolerance assays in WT overexpressing CIA7 were performed. The cia7- strain was more susceptible to Cd2+ induced decreased chlorophyll fluorescence and reduced cell size than the WT, and no significant difference in bioaccumulation was observed amongst the strains, although a significant effect of the growth media on the concentration was observed. Approximately 200 WT pSL72cia7- transformants were generated, which were subsequently preliminary screened for cadmium tolerance. The characterization of CIA7 as a metal-binding protein would allow for its potential use as a metal sequestering agent in environmental applications. Furthermore, a correlation of heavy metal exposure to CIA7 expression could designate CIA7 as a biomarker for heavy metal contamination
