995 resultados para Work sampling
Resumo:
The management and conservation of coastal waters in the Baltic is challenged by a number of complex environmental problems, including eutrophication and habitat degradation. Demands for a more holistic, integrated and adaptive framework of ecosystem-based management emphasize the importance of appropriate information on the status and changes of the aquatic ecosystems. The thesis focuses on the spatiotemporal aspects of environmental monitoring in the extensive and geomorphologically complex coastal region of SW Finland, where the acquisition of spatially and temporally representative monitoring data is inherently challenging. Furthermore, the region is subject to multiple human interests and uses. A holistic geographical approach is emphasized, as it is ultimately the physical conditions that set the frame for any human activity. Characteristics of the coastal environment were examined using water quality data from the database of the Finnish environmental administration and Landsat TM/ETM+ images. A basic feature of the complex aquatic environment in the Archipelago Sea is its high spatial and temporal variability; this foregrounds the importance of geographical information as a basis of environmental assessments. While evidence of a consistent water turbidity pattern was observed, the coastal hydrodynamic realm is also characterized by high spatial and temporal variability. It is therefore also crucial to consider the spatial and temporal representativeness of field monitoring data. Remote sensing may facilitate evaluation of hydrodynamic conditions in the coastal region and the spatial extrapolation of in situ data despite their restrictions. Additionally, remotely sensed images can be used in the mapping of many of those coastal habitats that need to be considered in environmental management. With regard to surface water monitoring, only a small fraction of the currently available data stored in the Hertta-PIVET register can be used effectively in scientific studies and environmental assessments. Long-term consistent data collection from established sampling stations should be emphasized but research-type seasonal assessments producing abundant data should also be encouraged. Thus a more comprehensive coordination of field work efforts is called for. The integration of remote sensing and various field measurement techniques would be especially useful in the complex coastal waters. The integration and development of monitoring system in Finnish coastal areas also requires further scientific assesement of monitoring practices. A holistic approach to the gathering and management of environmental monitoring data could be a cost-effective way of serving a multitude of information needs, and would fit the holistic, ecosystem-based management regimes that are currently being strongly promoted in Europe.
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This study considers the complex dynamics of work motivation. Forty-eight employees completed a work-motivation diary several times per day over a period of four weeks. The obtained time series were analysed using different methodologies derived from chaos theory (i.e. recurrence plots, Lyapunov exponents, correlation dimension and surrogate data). Results showed chaotic dynamics in 75% of cases. The findings confirm the universality of chaotic behavior within human behavior, challenge some of the underlying assumptions on which work motivation theories are based, and suggest that chaos theory may offer useful and relevant information on how this process is managed within organizations.
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INTRODUCTION: Time to fitness for work (TFW) was measured as the number of days that were paid as compensation for work disability during the 4 years after discharge from the rehabilitation clinic in a population of patients hospitalised for rehabilitation after orthopaedic trauma. The aim of this study was to test whether some psychological variables can be used as potential early prognostic factors of TFW. MATERIAL AND METHODS: A Cox proportional hazards model was used to estimate the associations between predictive variables and TFW. Predictors were global health, pain at hospitalisation and pain decrease during the stay (all continuous and standardised by subtracting the mean and dividing by two standard deviations), perceived severity of the trauma and expectation of a positive evolution (both binary variables). RESULTS: Full data were available for 807 inpatients (660 men, 147 women). TFW was positively associated with better perceived health (hazard ratio [HR] 1.16, 95% confidence interval [CI] 1.13-1.19), pain decrease (HR 1.46, 95% CI 1.30-1.64) and expectation of a positive evolution (HR 1.50, 95% CI 1.32-1.70) and negatively associated with pain at hospitalisation (HR 0.67, 95% CI 0.59-0.76) and high perceived severity (HR 0.72, 95% CI 0.61-0.85). DISCUSSION: The present results provide some evidence that work disability during a four-year period after rehabilitation may be predicted by prerehabilitation perceptions of general health, pain, injury severity, as well as positive expectation of evolution.
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The ongoing confusion about the meaning of ‘talent’ within the world of work is hindering the establishment of widely accepted talent management theories and practices. The aim of this paper is to contribute to the literature on talent management by offering an in-depth review of the talent concept within the specific context of the world of work, and proposing a framework for its conceptualization. We group different theoretical approaches to talent into ‘object’ (i.e., talent as natural ability; talent as mastery; talent as commitment; talent as fit) versus ‘subject’ approaches (i.e., talent as all people; talent as some people) and identify dynamics existing within and between them, as well as implications for talent management theory and practice. Finally, we discuss different avenues for further research aimed at developing the talent—and consequently, the talent management—construct further.
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El contexto organizativo para la prestación de cuidados incluye los factores organizativos y estructurales que facilitan la práctica profesional enfermera y tienen un impacto significativo en los resultados de los pacientes y de los centros. Objetivo: analizar el contexto organizativo para la prestación de cuidados en los hospitales del sistema público de salud. Método: los datos se recogieron en los talleres organizados por la Coordinación de Enfermería del Institut Català de la Salut, empleando un cuestionario que contenía los elementos del Nursing Work Index-Revised. La estrategia de análisis es eminentemente descriptiva, incluyendo también la exploración de la correlación entre las subescalas del instrumento. Resultados: se analizaron 405 cuestionarios. El resultado principal del estudio indica un bajo grado de desarrollo del contexto organizativo en los hospitales estudiados. Los factores organizativos más desarrollados son la"Autonomía" y el"Control sobre la práctica enfermera". Los factores organizativos menos desarrollados incluyen el"Reconocimiento profesional" y la"Formación". Ninguno de los factores evaluados obtuvo una puntuación sobresaliente. Conclusiones: el Nursing Work Index-Revised es una buena herramienta para efectuar una estimación aproximada del contexto organizativo para la prestación de cuidados. Los gestores deberían hacer una profunda reflexión sobre el coste de no considerar los aspectos que facilitan la práctica enfermera en los hospitales.
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The differentiation of workers into morphological subcastes (e.g., soldiers) represents an important evolutionary transition and is thought to improve division of labor in social insects. Soldiers occur in many ant and termite species, where they make up a small proportion of the workforce. A common assumption of worker caste evolution is that soldiers are behavioral specialists. Here, we report the first test of the "rare specialist" hypothesis in a eusocial bee. Colonies of the stingless bee Tetragonisca angustula are defended by a small group of morphologically differentiated soldiers. Contrary to the rare specialist hypothesis, we found that soldiers worked more (+34%-41%) and performed a greater variety of tasks (+23%-34%) than other workers, particularly early in life. Our results suggest a "rare elite" function of soldiers in T. angustula, that is, that they perform a disproportionately large amount of the work. Division of labor was based on a combination of temporal and physical castes, but soldiers transitioned faster from one task to the next. We discuss why the rare specialist assumption might not hold in species with a moderate degree of worker differentiation.
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Els dibuixos dels infants són petites marques de la personalitat i del caràcter de cadascú. Cada infant tendeix a representar i a dibuixar d’una determinada manera i és això el que fa que els seus dibuixos siguin únics. Aquest treball és un estudi qualitatiu sobre l’evolució de la percepció de l’espai en els dibuixos dels infants d’entre tres i cinc anys. L’estudi està format a partir de la recerca i comparació de teories de diferents autors sobre el dibuix i d’un mostreig de 61 dibuixos de diferents infants. Els instruments que s’utilitzen són l’observació directe, a partir de graelles d’observació, notes de camp, fotografies i gravacions. Un cop fetes les intervencions convenients s’extreuen uns resultats, analitzant dibuix per dibuix, per més tard, fer una comparació del que s’ha vist amb el mostreig obtingut i amb el que deien els autors.
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This research examines employees' anticipation of social and self-sanctions as a self-regulatory mechanism linking workgroup climates and counterproductive work behaviors (CWBs) and personality as a limit to these effects. A cross-level study with 158 employees from 26 workgroups demonstrated that in groups with a high compliance climate-a climate emphasizing the importance of complying with organizational rules-employees anticipate more social and self-sanctions, leading those low in conscientiousness and low in agreeableness to engage less frequently in CWBs. In contrast, a high relational climate-a climate emphasizing the importance of positive social relations over self-interest-indirectly unbridles the CWBs of these employees by alleviating the social and self-sanctions they anticipate for CWBs. Climates did not have indirect effects for employees high in agreeableness and high in conscientiousness. These findings elucidate why workgroup climates do not affect the CWBs of all members in the same way.
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The transition to adult life from the standpoint of inclusion is a complex process, especially for young people with intellectual disabilities. This article analyzes the context of transition processes showing the main relationships and differences of the different scenarios where young people with disabilities develop personal pathways that lead to adulthood. Among these scenarios, the school -the period of compulsory secondary education- plays a key role. Therefore, a specific section is devoted to developing an approach to the role of the school in the construction of bridges that facilitate social and work inclusion. Finally, it presents some major challenges that need to be faced to improve the processes of transition from an inclusive perspective
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Given their central role in mercury (Hg) excretion and suitability as reservoirs, bird feathers are useful Hg biomonitors. Nevertheless, the interpretation of Hg concentrations is still questioned as a result of a poor knowledge of feather physiology and mechanisms affecting Hg deposition. Given the constraints of feather availability to ecotoxicological studies, we tested the effect of intra-individual differences in Hg concentrations according to feather type (body vs. flight feathers), position in the wing and size (mass and length) in order to understand how these factors could affect Hg estimates. We measured Hg concentration of 154 feathers from 28 un-moulted barn owls (Tyto alba), collected dead on roadsides. Median Hg concentration was 0.45 (0.076-4.5) mg kg(-1) in body feathers, 0.44 (0.040-4.9) mg kg(-1) in primary and 0.60 (0.042-4.7) mg kg(-1) in secondary feathers, and we found a poor effect of feather type on intra-individual Hg levels. We also found a negative effect of wing feather mass on Hg concentration but not of feather length and of its position in the wing. We hypothesize that differences in feather growth rate may be the main driver of between-feather differences in Hg concentrations, which can have implications in the interpretation of Hg concentrations in feathers. Finally, we recommend that, whenever possible, several feathers from the same individual should be analysed. The five innermost primaries have lowest mean deviations to both between-feather and intra-individual mean Hg concentration and thus should be selected under restrictive sampling scenarios.
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The purpose of this study is the adaptation and validation of the"Survey Work-Home Interaction NijmeGen" (SWING) developed by Geurts and colleagues to Spanish speaking countries (SWING-SSC). In order to analyze the questionnaire"s psychometric properties, confirmatory factor analysis (CFA) was carried out with a sample of 203 employees from various Spanish-speaking countries. Criterion related validity was tested by examining correlations between the SWING-SSC, and the theoretically relevant variables: health, role conflict, role clarity and supervisor support. Finally, reliability was tested analyzing the internal consistency of the scales. The analyses carried out indicate that SWING-SSC has good psychometric properties. In addition, the present results support the relation of the construct with health, role conflict, role clarity, and supervisor support. This study offers evidence for a sound work-life balance measure that contributes to the encouragement adequate conditions in the workplace, to reduce the conflict between the two spheres of professional and personal life, and to enhance positive relationships.
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This study aimed at comparing the efficiency of various sampling materials for the collection and subsequent analysis of organic gunshot residues (OGSR). To the best of our knowledge, it is the first time that sampling devices were investigated in detail for further quantitation of OGSR by LC-MS. Seven sampling materials, namely two "swab"-type and five "stub"-type collection materials, were tested. The investigation started with the development of a simple and robust LC-MS method able to separate and quantify molecules typically found in gunpowders, such as diphenylamine or ethylcentralite. The evaluation of sampling materials was then systematically carried out by first analysing blank extracts of the materials to check for potential interferences and determining matrix effects. Based on these results, the best four materials, namely cotton buds, polyester swabs, a tape from 3M and PTFE were compared in terms of collection efficiency during shooting experiments using a set of 9 mm Luger ammunition. It was found that the tape was capable of recovering the highest amounts of OGSR. As tape-lifting is the technique currently used in routine for inorganic GSR, OGSR analysis might be implemented without modifying IGSR sampling and analysis procedure.
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Les problèmes de santé mentale au travail constituent un défi à la fois clinique, professionnel, économique et de santé publique. Les coûts totaux qu'ils génèrent en Suisse équivalent à 3,2 % du produit intérieur brut (PIB) suisse et ils aboutissent très souvent à un licenciement. La grande majorité des personnes sont soignées par un médecin de premier recours. L'Institut de Santé au Travail propose une consultation spécialisée dans les questions de souffrance au travail, offrant aux soignants de première ligne un avis ou un soutien pluridisciplinaire, dans une perspective collaborative des soins. Son action, adaptée aux besoins de chaque situation, va d'un avis à une orientation vers des spécialistes pouvant étoffer durablement le réseau (suivi psychiatrique, programme de soutien à l'emploi, avis juridique ou social). Mental health problems at work constitute a challenge in the clinical feld, as well in the professional, the economic and the public health perspective. The total costs they generate in Switzerland are equivalent to 3.2% of the Swiss gross domestic product and they very often lead to dismissal. The vast majority of people are treated by their primary care physician. The Institute for Work and Health features a specialized consultation on the topic of suffering at work, offering the primary care physicians a pluridisciplinary advice or support, in a collaborative care prospect. Its action, adapted to each situation's needs, goes from an advice to a referral to specialists that can strengthen the network on a long-term basis (mental health follow-up, supported employment program, legal or social advice).
Resumo:
Background New recommendations for rabies postexposure prophylaxis (rPEP) were published by the Centers for Disease Control and Prevention and the World Health Organization in 2010. In view of these new recommendations, the adequacy of rPEP among patients consulting the travel clinic of the University Hospital of Lausanne has been investigated and 6,8% of patients have been identified as non-responders with the new rPEP regimen. In this study we have selected the non-responders for a complete immunologic work up. Method Clinical and paraclinical immunologic investigations have been done to the non- responders patients. Those investigations have been conducted to look for an increased susceptibility to infections and an immunodeficiency. The investigations included a clinical evaluation, a full blood count, measurement of the immunoglobulin levels, a numeration of the subpopulations of the lymphocytes, a HIV test and an evaluation of the humoral response to tetanus, pneumococcal, and hepatitis B vaccinations. A lymphocyte proliferation assay with rabies antigen was performed to assess the cellular immune response. Results 9 subjects with rabies antibody titers ≤0,5 IU/ml after an rPEP with 4 doses were included in this study (=non-responders). 8/9 of these non-responders had an unremarkable medical history. 9/9 of them had normal paraclinical tests that did not suggest an immunodeficiency. The results of the lymphocyte proliferation assay with rabies antigen showed a significant correlation between the level of the humoral and cellular response. Conclusion These results suggest that a 4 dose intramuscular rPEP elicits in some patients a relatively poor humoral and cellular response, even in the absence of any immunosuppression. A serology on day 21 of the rPEP seems therefore useful to identify the patients who don't respond appropriately. Those non-responders should receive additional doses until they reach an antibody titer above 0.5 IU/ml.