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611.
Book Reviews     
Abstract

Kleinbeck, U., Quast, H.-H., Thierry, H., & Hacker, H. (1990). Work Motivation. Hillsdale, NJ: Lawrence Erlbaum Associates. Pp. 283.

Ketchum, L.D., & Trist, E.L. (1992). All teams are not created equal. Newbury Park, CA: Sage Publications. ISBN 0-8039-4652-X (cloth). 318 pp.  相似文献   
612.
Thirty-three adults with Down's syndrome (DS) originally tested by Woodruff-Pak, Papka, and Simon (1994) were retested approximately one year after initial testing as part of an ongoing longitudinal study. Subjects were tested in eyeblink classical conditioning (EBCC) and other neuropsychological tests. Adults with DS improved in EBCC over a 13-month period, but showed stability on other cognitive and behavioral tests. Age differences were found in EBCC but not other measures. Adults with DS aged 19-30 years performed significantly better in EBCC than adults with DS aged 46-65 years. Adults with DS aged 31-45 years did not show significantly different EBCC performance than subjects in older and younger age groups. the impaired EBCC performance of older adults with DS may be due to the presumed disruption of the hippocampal cholinergic system, which is an aspect of the Alzheimer-like neuropathology developing in adults with DS after the age of 35. the results further support the sensitivity of EBCC to Alzheimer-like neuropathology in older adults with DS.  相似文献   
613.
In recent years, the development and the use of engineered nanomaterials have generated many debates on whether these materials should be part of the new or existing regulatory frameworks. The uncertainty, lack of scientific knowledge and rapid expansion of products containing nanomaterials have added even more to the regulatory dilemma with policy makers and public/private actors contenting periods of both under and over regulation. Responding to these regulatory challenges, as well as to the global reach of nanotechnology research and industrial needs, governance arrangements beyond the state have addressed the challenge head-on. This article focuses on the governance arrangements of the International Organization for Standardization (ISO), which has led to the development of numerous “horizontal anticipatory standards” with an important role in setting the foundation for science, technology and market development. During the course of its operation ISO has broadened its scope to address not only technical issues related to the concept and the size of nanomaterials but also broader aspects of the technology, including health, environment and safety issues. The increasing relevance of the ISO to regulate economic relations and achieve certain public policy goals has given rise to many concerns about its legitimacy. The important questions are whether these governance arrangements may be deemed as being legitimate and where this legitimacy is derived from? What are the main sources of legitimacy at the transnational level and how we can apply them to analyse nanotechnology standardization? This article provides concise answers to these questions. It focuses at the normative concepts of democratic and scientific legitimacy and explores the institutional structures and processes by which nanotechnology standards are established.  相似文献   
614.
In a highly social species like chimpanzees, the process by which individuals become attuned to their social environment may be of vital importance to their chances of survival. Typically, this socialization process, defined by all acquisition experiences and fine-tuning efforts of social interaction patterns during ontogeny, occurs in large part through parental investment. In this study, we investigated whether maternal presence enhances the socialization process in chimpanzees by comparing the social interactions of orphaned and mother-reared individuals at the Chimfunshi Wildlife Orphanage Trust in Zambia. As response variables, we selected social interactions during which an elaborate level of fine-tuning is assumed to be necessary for sustaining the interaction and preventing escalation: social play. Comparing orphaned (n = 8) to sex- and age-matched mother-reared juvenile chimpanzees (n = 9), we hypothesized that the orphaned juveniles would play less frequently than the mother-reared and would be less equipped for fine-tuning social play (which we assayed by rates of aggression) because of the lack of a safe and facilitating social environment provided by the mother. First, contrary to our hypothesis, results showed that the orphaned juveniles engaged in social play more frequently than the mother-reared juveniles, although for significantly shorter amounts of time. Second, in support of our hypothesis, results showed that social play of the orphaned juveniles more often resulted in aggression than social play of the mother-reared juveniles. In conjunction, these results may indicate that, just like in humans, chimpanzee mothers provide their offspring with adequate social skills that might be of pivotal importance for future challenges like successful group-living and securing competitive fitness advantages.  相似文献   
615.
Behaviour and neuroimaging studies have shown that poor vigilance (PV) due to sleep deprivation (SD) negatively affects exogenously cued selective attention. In the current study, we assessed the impact of PV due to both partial SD and night-time hours on reflexive attentional orienting triggered by central un-informative eye-gaze and arrow cues. Subjective mood and interference performance in emotional Stroop task were also investigated. Twenty healthy participants performed spatial cueing tasks using central directional arrow and eye-gaze as a cue to orient attention. The target was a word written in different coloured inks. The participant’s task was to identify the colour of the ink while ignoring the semantic content of the word (with negative or neutral emotional valence). The experiment took place on 2 days. On the first day, each participant performed a 10-min training session of the spatial cueing task. On the second day, half of participants performed the task once at 4:30 p.m. (BSL) and once at 6:30 a.m. (PV), whereas the other half performed the task in the reversed order. Results showed that mean reaction times on the spatial cueing tasks were worsened by PV, although gaze paradigm was more resistant to this effect as compared to the arrow paradigm. Moreover, PV negatively affects attentional orienting triggered by both central un-informative gaze and arrow cues. Finally, prolonged wakefulness affects self-reported mood but does not influence interference control in emotional Stroop task.  相似文献   
616.
The youth self-report (YSR), which is theoretically based in the field of developmental psychopathology and follows a dimensional approach, is an important instrument to assess the behavioral and emotional problems and the psychosocial competencies of adolescents between the ages of 11 and 18 years in both clinical and research contexts. Our main aims were to propose a short form of the YSR, conduct a first validation study, and compare the short-form YSR with the full version of the Portuguese YSR. We conducted the first study (Study 1) in a sample of 1,266 Portuguese community adolescents between the ages of 11 and 21 years to analyze the factor structure of the YSR. We conducted the second study (Study 2) in a sample of 302 community adolescents between the ages of 11 and 21 years to validate the factor structure of the short form of the YSR, which consisted of 33 items that focused on the dimensions of internalization-depression, internalization-anxiety, externalization-destructiveness and externalization-exhibitionism. Our findings confirmed that the YSR-SF provides a good fit to the data, explains similarly the variance on several criteria compared with the longer version, and is sensitive to sex and age differences.  相似文献   
617.
Prejudice and discrimination are unfortunate common realities for sexual minorities yet people rarely confront such behavior (Dickter 2012). This is especially problematic because confronting prejudice is one of the most effective weapons against it (e.g., Czopp and Monteith 2003). The present study explores whether men who perceive manhood to be an impermanent state easily taken away by engaging in gender role violations (i.e., precarious manhood; Vandello et al. 2008) are less likely to react negatively to sexually prejudiced interaction partners and therefore less likely to confront sexual prejudice. In addition, we tested whether non-confrontation serves to affirm meta-perceptions of heterosexuality. To test this hypothesis, 88 heterosexual, young adult males, drawn from the undergraduate population of a university in the northeastern U.S., were randomly assigned to either pair with a confederate who expressed blatant sexual prejudice or no blatant prejudice toward a gay applicant in a hiring discussion. Consistent with predictions, precarious manhood predicted lower rates of confronting sexual prejudice, and less negative responses to their interaction partner, while confronting prejudice was associated with believing one would be viewed as gay regardless of individual differences in precarious manhood.  相似文献   
618.
Cystic fibrosis (CF) is the most common recessive condition affecting the White British population. Facilitating reproductive decision making for couples at genetic risk for CF is an important aspect of genetic counseling practice in the UK. The purpose of this study was to explore the reproductive decision making process for 31 members of CF carrier couples (15 men and 16 women) with or without an affected child. The design involved a qualitative approach consisting of semi-structured interviews and data analysis informed by grounded theory methodology. Sex and personal experience of CF were identified as factors that may influence reproductive decision making. Findings suggest these hypotheses: (1) CF carrier couples who have an affected child/pregnancy, are more likely to embark on another pregnancy than couples who have a healthy child from an at-risk pregnancy, and (2) men and women play different roles in the reproductive decision making process. Data analysis resulted in development of a structured framework modeling the reproductive decision making process, which may be helpful in guiding genetic counseling with CF carrier couples and other at risk couples making reproductive decisions.  相似文献   
619.
The present study examined the causal role of amount of Black ancestry in targets' perceived fit with Black prototypes and perceivers' categorization of biracial targets. Greater Black ancestry increased the likelihood that perceivers categorized biracial targets as Black and perceived targets as fitting Black prototypes (e.g., experiencing racial discrimination, possessing stereotypic traits). These results persisted, controlling for perceptions of phenotype that stem from ancestry information. Perceivers' beliefs about how society would categorize the biracial targets predicted perceptions of discrimination, whereas perceivers' beliefs about the targets' self-categorization predicted trait perceptions. The results of this study support the Black ancestry prototype model of affirmative action, which reveals the downstream consequences of Black ancestry for the distribution of minority resources (e.g., affirmative action) to biracial targets.  相似文献   
620.
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