18 resultados para External And Internal Mass Transfer
em Consorci de Serveis Universitaris de Catalunya (CSUC), Spain
Resumo:
The purpose of this paper is to examine the determinants of use internal or external labour market to fill a firm vacancy in SME’s taking into account the differences existing among blue and white collar jobs. Following different theories we can identify three main reasons for use internal candidates rather than external ones‐ firm specific knowledge, adverse selection problems and motivation‐. However, there are others factors that might affect this choice but the last theories don’t take into account. In this paper we try to shed some light on what are these other factors that may affect firm decision to use internal or external labour market. Particularly we analyses the relationship among new technologies, innovation activity and firm location on the staffing strategy. The results shows difference behaviour on the decision to fill a vacancy using internal or external labour markets between manufacturing and service firms, and this decision depends not only on firm internal characteristics, like technological complexity or innovation activity, but also on firm location. The results also support the hypothesis of ports of entry especially in the manufacturing sector.
Resumo:
Evolution of compositions in time, space, temperature or other covariates is frequentin practice. For instance, the radioactive decomposition of a sample changes its composition with time. Some of the involved isotopes decompose into other isotopes of thesample, thus producing a transfer of mass from some components to other ones, butpreserving the total mass present in the system. This evolution is traditionally modelledas a system of ordinary di erential equations of the mass of each component. However,this kind of evolution can be decomposed into a compositional change, expressed interms of simplicial derivatives, and a mass evolution (constant in this example). A rst result is that the simplicial system of di erential equations is non-linear, despiteof some subcompositions behaving linearly.The goal is to study the characteristics of such simplicial systems of di erential equa-tions such as linearity and stability. This is performed extracting the compositional differential equations from the mass equations. Then, simplicial derivatives are expressedin coordinates of the simplex, thus reducing the problem to the standard theory ofsystems of di erential equations, including stability. The characterisation of stabilityof these non-linear systems relays on the linearisation of the system of di erential equations at the stationary point, if any. The eigenvelues of the linearised matrix and theassociated behaviour of the orbits are the main tools. For a three component system,these orbits can be plotted both in coordinates of the simplex or in a ternary diagram.A characterisation of processes with transfer of mass in closed systems in terms of stability is thus concluded. Two examples are presented for illustration, one of them is aradioactive decay
Resumo:
We analyse the effects of investment decisions and firms' internal organisation on the efficiency and stability of horizontal mergers. In our framework economies of scale are endogenous and there might be internal conflict within merged firms. We show that often stable mergers do not lead to more efficiency and may even lead to efficiency losses. These mergers lead to lower total welfare, suggesting that a regulator should be careful in assuming that possible efficiency gains of a merger will be effiectively realised. Moreover, the paper offers a possible explanation for merger failures.
Resumo:
This paper investigates the impact of television on internal migration in Indonesia. We exploit the differential introduction of private television throughout the country and the variation in signal reception due to topography to estimate the causal effect of media exposure. Our estimates reveal important long and short run effects. An increase of one standard deviation in the number of private TV channels received in the area of residence reduces future inter-provincial migration by 1.7-2.7 percentage points, and all migration (inter and intra-provincial) by 4-7.4 percentage points. Short run effects are slightly smaller, but still sizeable and statistically significant. We also show that respondents less exposed to private TV are more likely to consider themselves among the poorest groups of the society. As we discuss in a stylized model of migration choice under imperfect information, these findings are consistent with Indonesia citizens over-estimating the net gains from internal migration.
Resumo:
Immigrant organisations in the City of Oslo receive support from the government for their daily operation. In order to receive such support, each organisation must be membership-based and have internal democratic procedures. This paper raises the question of how we can understand this combination of support for ethnic based organisations and requirements of membership and internal democracy. It explores the usefulness of two partly overlapping ways of understanding this policy and discusses their interrelationship. Firstly, within the context of the crisis of multiculturalism, the paper discusses whether this combination is based on the aim of strengthening the organisations’ procedural commitment to liberal-democratic principles. Secondly, the paper analyses whether requirements of membership and internal democracy can mainly be understood within the framework of the Nordic model of voluntary organisation. By comparing the policy at three empirical levels, the paper concludes that this combination can mainly be understood within the framework of the traditional historical Nordic model, but that there is an ambiguity in this policy related to minority rights.
Resumo:
The problem of obesity is alarming public health authorities around the world. Therefore, it is important to study its determinants. In this paper we explore the empirical relationship between household income and body mass index (BMI) in nine European Union countries. Our findings suggest that the association is negative for women, but we find no statistically significant relationship for men. However, we show that the different relationship for men and women appears to be driven by the negative relationship for women between BMI and individual income from work. We tentatively conclude that the negative relationship between household income and BMI for women may simply be capturing the wage penalty that obese women suffer in the labor market.
Resumo:
Time correlation functions between the velocity of a tagged particle and velocities of particles within specified ranges of initial separations have been obtained by molecular dynamics simulation. These correlation functions have allowed us to analyze the momentum transfer between particles in different coordination shells. Two simple liquids at very different densities and two purely repulsive potentials with very different softnesses have been considered. The longitudinal correlations, which are the velocity cross-correlations along the initial direction defined by the centers of two given particles, have been calculated separately. It has been proven that these correlations should be attributed to particles both in front of and behind the central one. As with propagating longitudinal modes, they are strongly dependent on the softness of the potential core. Some characteristic features of the velocity correlation functions after the initial rise should be related to nonlongitudinal correlations. It has been shown that velocity cross-correlations between distinct particles cannot only be attributed to the direct interactions among particles, but also to the motions induced by the movement of a tagged particle on their neighbors.
Resumo:
Seismic methods used in the study of snow avalanches may be employed to detect and characterize landslides and other mass movements, using standard spectrogram/sonogram analysis. For snow avalanches, the spectrogram for a station that is approached by a sliding mass exhibits a triangular time/frequency signature due to an increase over time in the higher-frequency constituents. Recognition of this characteristic footprint in a spectrogram suggests a useful metric for identifying other mass-movement events such as landslides. The 1 June 2005 slide at Laguna Beach, California is examined using data obtained from the Caltech/USGS Regional Seismic Network. This event exhibits the same general spectrogram features observed in studies of Alpine snow avalanches. We propose that these features are due to the systematic relative increase in high-frequency energy transmitted to a seismometer in the path of a mass slide owing to a reduction of distance from the source signal. This phenomenon is related to the path of the waves whose high frequencies are less attenuated as they traverse shorter source-receiver paths. Entrainment of material in the course of the slide may also contribute to the triangular time/frequency signature as a consequence of the increase in the energy involved in the process; in this case the contribution would be a source effect. By applying this commonly observed characteristic to routine monitoring algorithms, along with custom adjustments for local site effects, we seek to contribute to the improvement in automatic detection and monitoring methods of landslides and other mass movements.
Resumo:
La empresa moderna, se encuentra en una situación actual de incertidumbre en la que además está más expuesta a factores externos con el aumento de la competencia y el impacto de la globalización. Se enfrenta a un panorama que debe ser gestionado adecuadamente para asegurar su supervivencia y el éxito de su existencia. En este TFC, se presenta una de las herramientas ‘buque insignia’ del Management moderno, aquella que está destinada a ser la base de la Gestión de la empresa y que cada vez más se hace imprescindible para la construcción de un futuro cada vez más incierto, la Planificación Estratégica. El Plan Estratégico 2012-2015 de AESL se desarrolla en varios apartados que intentarán dar con las claves de la dirección que la empresa debe seguir y propone los objetivos que encontrará a través de la puesta en marcha de las acciones y estrategias determinadas. La primera etapa, y la más extensa, realiza un Análisis de la situación externa e interna de la empresa además de un Diagnóstico de la misma. Se analizan diversos factores que pueden contribuir o hacer peligrar el futuro de la empresa, y constituye el punto de partida de la planificación. En la segunda etapa, y con la información de la anterior fase, comienza la fijación de los Objetivos Corporativos y la definición de las Decisiones Estratégicas que han de transformar nuestro rumbo actual en el logro de esos objetivos. Las estrategias no sólo comportarán un ámbito corporativo, también se centrarán en estrategias funcionales con un carácter más definitorio en el interior de la empresa. Por último, la tercera y última etapa, aglutinará todas estas Decisiones estratégicas para transformarlas en las Decisiones Operativas, aquellas que se encargarán de gestionar el día a día de la empresa a través de los Planes de Acción, que suponen la etapa de mayor concreción del Plan. Este Plan a 3 años deberá erigirse como la herramienta de planificación más importante de la empresa, debiendo guiar las principales decisiones tomadas y convirtiéndose en un instrumento de consulta no sólo para decidir hoy lo que se hará en el futuro sino también para mantener unos niveles altos de competitividad en el tremendo esfuerzo que supone la gestión de una PYME.
Resumo:
In this article, Rosa Cabré discusses Marçal¿s novel and illustrates how, according to the author, the desire of love, which is a source of pleasure often accompanied by guilt and distress, can lead to the creation or the illusion of an absolute beauty, like poetry. She explains in what way the mirror and the mask, recurring motifs in Marçal¿s work, symbolise identity and ¿otherness¿ and how these unite the real and the symbolic level. The novel contains an infinite number of mirrors, both external and internal ones, which enable the characters to see themselves reflected. This reflection is linked to feminity and to the possibilities of discovering one¿s own identity.
Resumo:
In this article, Rosa Cabré discusses Marçal¿s novel and illustrates how, according to the author, the desire of love, which is a source of pleasure often accompanied by guilt and distress, can lead to the creation or the illusion of an absolute beauty, like poetry. She explains in what way the mirror and the mask, recurring motifs in Marçal¿s work, symbolise identity and ¿otherness¿ and how these unite the real and the symbolic level. The novel contains an infinite number of mirrors, both external and internal ones, which enable the characters to see themselves reflected. This reflection is linked to feminity and to the possibilities of discovering one¿s own identity.
Resumo:
El treball de recerca del Màster en Arxivística i Gestió de Documents de l’ESAGED (Escola Superior d’Arxivística i Gestió de Documents) ha consistit en l’estudi i l’avaluació del registre general d’entrades i sortides de documents de l’Ajuntament de Santa Perpètua de Mogoda, en fase de producció. A més d’estudiar-ne el context extern i intern s’han auditat les funcionalitats de l’eina tecnològica que gestiona el Registre General. S’explica el desenvolupament de la recerca i els resultats obtinguts. Finalment, es presenten les propostes de millora en fase de producció a fi d’augmentar l’autenticitat i la integritats de les dades, i també unes propostes de conservació del Registre General actual. Paraules clau: Registre General, preservació, base de dades, assentaments, ajuntament, classificació, gestió de documents, dades, informació, fiabilitat, integritat, autenticitat.
Resumo:
La empresa moderna, se encuentra en una situación actual de incertidumbre en la que además está más expuesta a factores externos con el aumento de la competencia y el impacto de la globalización. Se enfrenta a un panorama que debe ser gestionado adecuadamente para asegurar su supervivencia y el éxito de su existencia. En este TFC, se presenta una de las herramientas ‘buque insignia’ del Management moderno, aquella que está destinada a ser la base de la Gestión de la empresa y que cada vez más se hace imprescindible para la construcción de un futuro cada vez más incierto, la Planificación Estratégica. El Plan Estratégico 2012-2015 de AESL se desarrolla en varios apartados que intentarán dar con las claves de la dirección que la empresa debe seguir y propone los objetivos que encontrará a través de la puesta en marcha de las acciones y estrategias determinadas. La primera etapa, y la más extensa, realiza un Análisis de la situación externa e interna de la empresa además de un Diagnóstico de la misma. Se analizan diversos factores que pueden contribuir o hacer peligrar el futuro de la empresa, y constituye el punto de partida de la planificación. En la segunda etapa, y con la información de la anterior fase, comienza la fijación de los Objetivos Corporativos y la definición de las Decisiones Estratégicas que han de transformar nuestro rumbo actual en el logro de esos objetivos. Las estrategias no sólo comportarán un ámbito corporativo, también se centrarán en estrategias funcionales con un carácter más definitorio en el interior de la empresa. Por último, la tercera y última etapa, aglutinará todas estas Decisiones estratégicas para transformarlas en las Decisiones Operativas, aquellas que se encargarán de gestionar el día a día de la empresa a través de los Planes de Acción, que suponen la etapa de mayor concreción del Plan. Este Plan a 3 años deberá erigirse como la herramienta de planificación más importante de la empresa, debiendo guiar las principales decisiones tomadas y convirtiéndose en un instrumento de consulta no sólo para decidir hoy lo que se hará en el futuro sino también para mantener unos niveles altos de competitividad en el tremendo esfuerzo que supone la gestión de una PYME.
Resumo:
Population studies of unidentified EGRET sources suggest that there exist at least three different populations of galactic gamma-ray sources. One of these populations is formed by young objects distributed along the galactic plane with a strong concentration toward the inner spiral arms of the Galaxy. Variability, spectral and correlation analysis indicate that this population is not homogeneous. In particular, there is a subgroup of sources that display clear variability in their gamma-ray fluxes on timescales from days to months. Following the proposal by Kaufman Bernad\'o et al. (2002), we suggest that this group of sources might be high-mass microquasars, i.e. accreting black holes or neutron stars with relativistic jets and early-type stellar companions. We present detailed inhomogeneous models for the gamma-ray emission of these systems that include both external and synchrotron self-Compton interactions. We have included effects of interactions between the jet and all external photon fields to which it is exposed: companion star, accretion disk, and hot corona. We make broadband calculations to predict the spectral energy distribution of these objects from radio up to GeV energies. The results and predictions can be tested by present and future gamma-ray instruments like INTEGRAL, AGILE, and GLAST.
Resumo:
This paper analyses the theoretical relevance of the dynamical aspects of growth on the discussion about the observed positive correlation between per capita real income and real exchange rates. With this purpose, we develop a simple exogenous growth model where the internal, external and intertemporal equilibrium conditions of a typical macroeconomic model are imposed; this last one through the inclusion of a balanced growth path for the foreign assets accumulation. The main result under this consideration is that the relationship defended by the Balassa-Samuelson hypothesis is no more so straightforward. In our particular approach, the mentioned bilateral relationship depends on a parameter measuring thriftiness in the economy. Therefore, the probability of ending up with a positive relationship between growth and real exchange rates -as the classical economic theory predicts- will be higher when the economy is able to maintain a minimum saving ratio. Moreover, given that our model considers a simple Keynesian consumption function, some explosive paths can also be possible.