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Selected AbstractsConceptualizing and evaluating career successJOURNAL OF ORGANIZATIONAL BEHAVIOR, Issue 2 2005Peter A. Heslin Within the vast literature on the antecedents of career success, the success criterion has generally been operationalized in a rather deficient manner. Several avenues for improving the conceptualization and measurement of both objective and subjective career success are identified. Paramount among these is the need for greater sensitivity to the criteria that study participants, in different contexts, use to construe and judge their career success. This paper illustrates that contextual and individual factors are likely to be associated with the relative salience of objective and subjective criteria of career success. Drawing on social comparison theory, propositions are also offered about when self- and other-referent success criteria are likely to be most salient. A broader research agenda addresses career success referent choice, organizational interventions, and potential cultural differences. This article maps out how future research can be more sensitive to how people actually do conceptualize and evaluate their own career success. Copyright © 2005 John Wiley & Sons, Ltd. [source] Acrylamide: An Update on Current Knowledge in Analysis, Levels in Food, Mechanisms of Formation, and Potential Strategies of ControlNUTRITION REVIEWS, Issue 12 2004Richard H. Stadler PhD This review summarizes the research to date on acrylamide levels in food, analytical methods, main sources of dietary exposure, mechanisms of formation, and mitigation research in the major food categories. Significant progress in the research has been made over the past 18 months, as reflected by the numerous publications and national and international workshops on the subject. This rapid pace of developments is mainly attributable to the coordinated and collaborative efforts of all of those concerned: the food industry, academia, private/enforcement laboratories, and national authorities. Most of the information gaps identified since the findings in early 2002 on the occurrence of acrylamide in foods and exposure assessments have been addressed, and public databases have been established by several authorities. Today, the performance of analytical methods, particularly for "difficult" food matrices, is adequate, and any modifications made over the past 12 to 18 months in analytical procedures did not significantly impact the initial exposure calculations. Several avenues into mitigation have been explored in the different food categories, with much emphasis being placed on potato-based products, and empirical trials (mostly pilot studies) have provided better knowledge of the key parameters that influence acrylamide formation. However, despite these intensive efforts, only marginal reductions have been achieved by the food industry, and any further progress will entail long-term studies at the primary production level. Any measures devised to reduce exposure to acrylamide in commercial foods must be carefully assessed in terms of food safety and quality. A hitherto poorly addressed concern is the formation of acrylamide in foods prepared by consumers in the home, and more guidance on this by national authorities is warranted. [source] Psychological benefits for cancer patients and their partners participating in mindfulness-based stress reduction (MBSR)PSYCHO-ONCOLOGY, Issue 9 2010Kathryn Birnie Abstract Objective: Cancer patients experience many negative psychological symptoms including stress, anxiety, and depression. This distress is not limited to the patient, as their partners also experience many psychological challenges. Mindfulness-based stress reduction (MBSR) programs have demonstrated clinical benefit for a variety of chronic illnesses, including cancer. This is the first study to report MBSR participation with partners of cancer patients. Methods: This study examined the impact of an 8-week MBSR program for 21 couples who attended the program together on outcomes of mood disturbance, symptoms of stress, and mindfulness. Results: Significant reductions for both patients and partners in mood disturbance (p<0.05) and the Calgary Symptoms of Stress Inventory (C-SOSI) subscales of muscle tension (p<0.01), neurological/GI (p<0.05), and upper respiratory (p<0.01) symptoms were observed after program participation. Significant increases in mindfulness (p<0.05) were also reported in both groups. No significant correlations were observed between patient and partner scores on any measures at baseline or on change scores pre- to post-intervention; however, after MBSR participation couple's scores on the Profile of Mood States and C-SOSI were more highly correlated with one-another. Post-intervention, partners' mood disturbance scores were significantly positively correlated with patients' symptoms of stress and negatively correlated with patients' levels of mindfulness. Conclusions: Overall, the MBSR program was helpful for improving psychological functioning and mindfulness for both members of the couple. Several avenues of future research are suggested to further explore potential benefits of joint couple attendance in the MBSR program. Copyright © 2010 John Wiley & Sons, Ltd. [source] Assimilation of satellite-derived soil moisture from ASCAT in a limited-area NWP modelTHE QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, Issue 648 2010Jean-François Mahfouf Abstract A simplified Extended Kalman Filter is developed for the assimilation of satellite-derived surface soil moisture from the Advanced Scatterometer (ASCAT) instrument (on board the polar-orbiting satellite METOP) in a limited-area NWP model where soil water vertical transfers are described by a force,restore method. An analytic formulation of the land surface scheme Jacobians is derived to simplify the coupling between land surface and atmospheric data assimilation systems. Various steps necessary before the assimilation of ASCAT products are defined: projection of satellite data on the model grid, screening based on various criteria, bias correction using a CDF matching technique, and specification of model and observation errors. Three-dimensional variational data assimilation experiments are then performed during a four-week period in May 2009 over western Europe. A control assimilation is also run where the soil moisture evolves freely. Forecasts from these analyses show that the assimilation of ASCAT data slightly reduces the daytime low-level relative humidity positive bias of the control run. Forecast skill scores with respect to other variables are rather neutral. A comparison of the control run with the operational system where soil moisture is corrected from short-range forecast errors of screen-level observations show similar improvements but are more pronounced. These differences come from the fact that the number of screen-level observations from the surface network over Europe is significantly larger than those provided by a polar-orbiting satellite. These results are consistent with those obtained at ECMWF using soil moisture products derived from other satellite instruments (X-band radiometer TMI and C-band scatterometer ERS). Several avenues for improving this preliminary methodology are proposed. Copyright © 2010 Royal Meteorological Society [source] Stem cell biology of the central nervous systemJOURNAL OF NEUROSCIENCE RESEARCH, Issue 6 2002Hideyuki Okano Abstract Neural stem cells (NSCs) are multipotential progenitor cells that have self-renewal activities. A single NSC is capable of generating various kinds of cells within the central nervous system (CNS), including neurons, astrocytes, and oligodendrocytes. Because of these characteristics, there is increasing interest in NSCs and neural progenitor cells from the aspects of both basic developmental biology and therapeutic applications to the damaged brain. This special issue, dedicated to understanding the nature of the NSCs present in the CNS, presents an introduction to several avenues of research that may lead to feasible strategies for manipulating cells in situ to treat the damaged brain. The topics covered by these studies include the extracellular factors and signal transduction cascades involved in the differentiation and maintenance of NSCs, the population dynamics and locations of NSCs in embryonic and adult brains, prospective identification and isolation of NSCs, the induction of NSCs to adopt particular neuronal phenotypes, and their transplantation into the damaged CNS. © 2002 Wiley-Liss, Inc. [source] Relational Aggression and Adverse Psychosocial and Physical Health Symptoms Among Urban AdolescentsPUBLIC HEALTH NURSING, Issue 6 2009Jessica Roberts Williams ABSTRACT Objectives: The purpose of this study was to examine relational aggression and its relationship with adverse psychosocial and physical health symptoms among urban, African American youth. Design and Sample: Quantitative, cross-sectional survey design. The sample consisted of 185 predominantly African American (95.1%) seventh-grade students (mean age: 13.0; female: 58%) attending 4 urban middle schools. Measures: The Children's Social Behavior Scale and Social Experience Questionnaire were used to measure relational aggression and relational victimization. The Pediatric Symptom Checklist was used to assess psychosocial difficulties, including internalizing behaviors, externalizing behaviors, and attention problems. Physical health symptoms were measured with questions about colds/flu, headaches, and stomach aches. Results: 2-way multivariate analysis of variance revealed significant differences in externalizing behavior, with perpetrators reporting higher levels than nonperpetrators. Victims reported more internalizing behavior than nonvictims; however, this was only significant for males. For females, significant negative effects on health outcomes were found, resulting from the interaction of perpetration and victimization. Conclusions: Findings suggest that relational aggression is a common occurrence among urban, minority adolescents and may result in adverse health outcomes. These results provide several avenues for future research and implications for healthcare practice. Intervention strategies are needed to prevent relational aggression and continual or subsequent adverse health symptoms. [source] | ||||||||||