2,500 research outputs found
Short-term trajectories of workplace bullying and its impact on strain: A latent class growth modeling approach
The aim of this weekly diary study was (a) to identify trajectories of workplace bullying over time and (b) to examine the association of each cluster with strain indicators (i.e., insomnia and anxiety/depression). A sample of 286 employees during 4 weeks of data was used (N occasions = 1,144). Results of latent class growth modeling showed that 3 trajectories could be identified: a nonbullying trajectory, which comprised 90.9% of the sample; an inverted U trajectory; and a delayed increase bullying trajectory; the latter two each had 4.2% of the participants. We found a significant interaction between time and trajectories when predicting insomnia and anxiety/depression, with each strain showing a differential pattern with each trajectory. It seems that the negative effects on insomnia are long-lasting and remain after bullying has already decreased. In the case of anxiety and depression, when bullying decreases strain indicators also decrease. In this study, by examining trajectories of bullying at work over time and their associations with strain, we provide new insights into the temporal dynamics of workplace bullying
Distribution of sea-air CO 2 fluxes in the Patagonian Sea: Seasonal, biological and thermal effects
Sea-air CO2 fluxes (FCO2) in the Patagonian Sea (PS) were studied using observations collected in 2000-2006. Based on the PS frontal structures and the thermal and biological contributions to FCO2 we present a regional subdivision between distinct regimes that provide new insights on the processes that control these fluxes. The coastal regime (CR) is a net source of atmospheric CO2 (4.9 x 10-3mol.m-2.d-1) while the open shelf regime (SHR) is a net CO2 sink (-6.0 x 10-3mol.m-2.d-1). The interface between these two regions closely follows the location of along-shore fronts. In addition, based on the nature of the processes that drive the FCO2, the PS is subdivided between northern (NR) and southern (SR) regions. Both, NR and SR are CO2 sinks, but the CO2 uptake is significantly higher in NR (-6.4 x 10-3mol.m-2.d-1) than in SR (-0.5 x 10-3mol.m-2.d-1). The data reveal a strong seasonality in FCO2. The mean CO2 capture throughout the PS in austral spring is -5.8 x 10-3mol.m-2.d-1, reaching values lower than -50 x 10-3mol.m-2.d-1 in NR, while in winter FCO2 is close to equilibrium in SR. The analysis of the biological and thermal effects (BE and TE, respectively) on seasonal pCO2 variability indicates that regions of CO2 emission are dominated by the TE while regions of CO2 uptake are dominated by the BE. Our results indicate that the biological pump is the dominant process determining the sea-air CO2 flux in the PS.Fil: Kahl, Lucía Carolina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval. Departamento Oceanografía; ArgentinaFil: Bianchi, Alejandro A.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval. Departamento Oceanografía; ArgentinaFil: Osiroff, Ana Paula. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval. Departamento Oceanografía; ArgentinaFil: Pino, Diana Ruiz. Universite Pierre et Marie Curie; FranciaFil: Piola, Alberto Ricardo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval. Departamento Oceanografía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
Contribución de la logística interna a la producción en la empresa la Liguria S. A. ubicada en el distrito de Breña en el año 2019
La investigación tuvo como objetivo la logística interna y su contribución en la
producción para la empresa, siendo esta área una pieza clave en la gestión de las
organizaciones. La Liguria S.A. es una microempresa que se encuentra en el rubro
comercial de la panadería y pastelería, de la cual se sabe que desarrolla empíricamente la
logística interna al igual que otras microempresas.
Este estudio estuvo enfocado en fomentar un correcto control de la producción en la
empresa, planificar la recepción, controlar el almacenaje y mejorar la distribución de
acuerdo a las necesidades. El tipo de investigación es cualitativa de carácter aplicativo y
correlacional y el método de estudio fue un enfoque cualitativo. El recojo de la
información se hizo mediante una encuesta para lo cual se utilizó una muestra de 25
personas de la empresa y se obtuvo como resultado que falta fomentar un orden a nivel
administrativo y operativo para generar concientización respecto a la fase productiva en
de los empleados.
Con este estudio, se enriquece a la empresa con una logística interna, contribuyendo en
la producción, mediante la recepción, almacenamiento y distribución; de esta manera, se
tendrá un orden y conocimiento de los recursos que se emplean para la demanda.Tesi
Turning teachers into entrepreneurship role models: development of a measurement scale of useful characteristics
The circumstances under which students consider their teachers of entrepreneurship as role models have not received in-depth exploration in the literature. This paper focuses on determining the main personal, professional and pedagogical characteristics that would turn teachers of entrepreneurship into role models and thereby improve the entrepreneurial intentions of students. A three-step empirical research process combining documentary, qualitative and quantitative methods is developed in order to propose and test a measurement scale of teacher characteristics that is reliable, valid and useful for causal modelling. A total of 26 characteristics are identified and classified into personal, professional and pedagogical categories
Functional Estimation of the Random Rate of a Cox Process
The intensity of a doubly stochastic Poisson process (DSPP) is also a
stochastic process whose integral is the mean process of the DSPP. From a set
of sample paths of the Cox process we propose a numerical method, preserving
the monotone character of the mean, to estimate the intensity on the basis of the
functional PCA. A validation of the estimation method is presented by means of a
simulation as well as a comparison with an alternative estimation method.Projects MTM2007-63793 of Dirección General de Investigación, Ministerio de Ciencia, P06-FQM-01470 from Consejería de Innovación, Ciencia y Empresa de la Junta de Andalucía and MTM2007-66791 of Plan Nacional I+D, Ministerio de Ciencia y Tecnología jointly by the FEDER and grant FQM-307 of Conserjería de Innovación de la Junta de Andalucía, all of them in Spai
Centro de interpretación ambiental cultural del circuito ecoturistico Lomas de Lúcumo Pachacamac - Lima
El presente documento, desarrolla el proyecto de Centro de Interpretación Ambiental Cultural para el circuito ecoturístico de Lomas de Lúcumo en el distrito de Pachacamac, Provincia de Lima, propuesta que busca dar a conocer el recinto además de promover su conservación y preservación al ser un ecosistema considerado frágil, es decir, debido a intervenciones humanas no recupera su estado original. Este equipamiento relativamente moderno propone como principal objetivo integrar aspectos como investigación, difusión y recreación para que los usuarios participen en actividades generando en ellos interés en la protección de este entorno natural.
En la primera parte se describe de manera detallada la problemática mencionada, además de los fundamentos teóricos que conllevan a la investigación y algunos casos similares al ámbito de estudio y la metodología empleada. Posteriormente se describe el programa de necesidades, usuarios, conceptualización del proyecto, así mismo, la funcionalidad del proyecto, cuadro de áreas, planimetría, detalles arquitectónicos y especialidades. La elección de materiales tuvo un papel importante en la composición formal del proyecto, ya que el objeto arquitectónico no solo responde en forma y función, sino que también logra un nivel de estética con fundamentos relacionados a su entorno, logrando una composición arquitectónica que se emplaza correctamente en el centro poblado sin alterarlo.This document develops the Cultural Environmental Interpretation Center project for the ecotourism circuit of Lomas de Lúcumo in the district of Pachacamac, Province of Lima, a proposal that seeks to publicize the site in addition to promoting its conservation and preservation as an ecosystem considered fragile, that is, due to human interventions does not recover its original state. This relatively modern equipment proposes the main objective of integrating aspects such as research, dissemination and recreation so that users participate in activities generating interest in the protection of this natural environment.
In the first part the aforementioned problem is described in detail, in addition to the theoretical foundations that lead to research and some cases similar to the field of study and the methodology used. Subsequently, the program of needs, users, conceptualization of the project is described, as well as the functionality of the project, area chart, planimetry, architectural details and specialties. The choice of materials played an important role in the formal composition of the project, since the architectural object not only responds in form and function, but also achieves a level of aesthetics with foundations related to its surroundings, achieving an architectural composition that is located correctly in the populated center without altering it.Tesi
Workaholism and work-family interaction among emergency and critical care nurses
Objectives: Investigating the prevalence of workaholism as well as the relationship between work-family interaction among emergency and critical care nurses.
Research methodology/design: A quantitative cross-sectional study.
Setting: A total of 219 nurses took part in the Dutch Work Addiction Scale (DUWAS-10) and the Survey WorkHome Interaction Nijmegen (SWING), which included socio–demographic and occupational question. Data
was gathered in Spain between June and September 2019.
Results: Workaholism was found to be prevalent in 28.3% of the participants. In all four categories, workaholism
was statistically connected to work-home interaction, with workaholics having higher means than nonworkaholics. Perceived work stress was related to workaholism (p =.036). In the Work Excessively dimension,
female nurses had significantly higher mean scores (M = 2.26) than their male counterparts (M = 1,88).
In addition, in the Negative Work-Home Interaction (M = 2.04), the global mean scores were higher than in the
Negative Home-Work Interaction (M = 1.34), indicating conflict and a negative impact of work on the family.
Conclusion: The findings of this study demonstrated the necessity of taking into account demands and resources
from both the work and home domains since it has been shown that both have an impact on one other.
Furthermore, given the vital responsibilities that emergency and critical care nurses play in the health care
system, our findings suggest that occupational health treatments should be used to identify those working
profiles that are particularly at risk.info:eu-repo/semantics/publishedVersio
Yra1-bound RNA–DNA hybrids cause orientation-independent transcription– replication collisions and telomere instability
R loops are an important source of genome instability, largely due to their negative impact on replication progression. Yra1/ALY is an abundant RNA-binding factor conserved from yeast to humans and required for mRNA export, but its excess causes lethality and genome instability. Here, we show that, in addition to ssDNA and ssRNA, Yra1 binds RNA–DNA hybrids in vitro and, when artificially overexpressed, can be recruited to chromatin in an RNA– DNA hybrid-dependent manner, stabilizing R loops and converting them into replication obstacles in vivo. Importantly, an excess of Yra1 increases R-loop-mediated genome instability caused by transcription–replication collisions regardless of whether they are codirectional or head-on. It also induces telomere shortening in telomerase-negative cells and accelerates senescence, consistent with a defect in telomere replication. Our results indicate that RNA–DNA hybrids form transiently in cells regardless of replication and, after stabilization by excess Yra1, compromise genome integrity, in agreement with a two-step model of R-loop-mediated genome instability. This work opens new perspectives to understand transcription-associated genome instability in repair-deficient cells, including tumoral cells.European Research Council ERC2014 AdG669898 TARLOOPMinisterio de Economía y Competitividad BFU2016-75058-PJunta de Andalucía PA12- BIO123
High scale impact in alignment and decoupling in two-Higgs doublet models
The two-Higgs doublet model (2HDM) provides an excellent benchmark to study
physics beyond the Standard Model (SM). In this work we discuss how the
behaviour of the model at high energy scales causes it to have a scalar with
properties very similar to those of the SM -- which means the 2HDM can be seen
to naturally favor a decoupling or alignment limit. For a type II 2HDM, we show
that requiring the model to be theoretically valid up to a scale of 1 TeV, by
studying the renormalization group equations (RGE) of the parameters of the
model, causes a significant reduction in the allowed magnitude of the quartic
couplings. This, combined with -physics bounds, forces the model to be
naturally decoupled. As a consequence, any non-decoupling limits in type II,
like the wrong-sign scenario, are excluded. On the contrary, even with the very
constraining limits for the Higgs couplings from the LHC, the type I model can
deviate substantially from alignment. An RGE analysis similar to that made for
type II shows, however, that requiring a single scalar to be heavier than about
500 GeV would be sufficient for the model to be decoupled. Finally, we show
that not only a 2HDM where the lightest of the CP-even scalars is the 125 GeV
one does not require new physics to be stable up to the Planck scale but this
is also true when the heavy CP-even Higgs is the 125 GeV and the theory has no
decoupling limit for the type I model.Comment: 28 pages, 19 figure
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