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81.
The changing positions of different members of adolescent support networks are examined with respect to adolescent age (11–15) and sex, and, in particular, with respect to changes following parental separation. Older children’s reports of less parental support are consistent with expectations of diminishing attachment. However, the relative importance of same sex friends for provision of support for girls, in comparison to boys, suggests more flexibility in the sense of their being less tied to parents for support. The comparison between children from different family types revealed no differences in respect of relations with same sex or opposite sex friends. Hence, no compensation or spill over from parental separation was evident. However, there was a clear system effect in that children from divorcing families that lived with their mother provided relatively more support for mother, and also reported less acceptance from their fathers in comparison to those children where no parental separation had taken place. Their adjustment will depend, at least in part, on the functioning of their broader social networks.  相似文献   
82.
Arguments for public involvement in science and technology are often based on ideas of developing a more capable public and the assumed effects this may have for science. However, such a relationship is yet to be sufficiently explored and recent work indicates that a more involved public may have counterintuitive effects. Using nationally representative survey data for the U.K. and Northern Ireland, the effects of the public's own beliefs about involvement are explored. Developing the concept of "belief in public efficacy," findings suggest those who believe that the public might be able to affect the course of decision making have less approving attitudes towards future applications of genetic science; however, an individual's political efficacy does not significantly influence these attitudes. Furthermore, political efficacy and belief in public efficacy have some distinct and opposing relationships with the principles of governance people prefer. Overall, findings provide support for suggestions that it is simplistic to consider increasing public involvement as a way of increasing the approval of risky new technologies.  相似文献   
83.
Across the United States, children with behavioral and emotional problems receive one of a variety of labels if they are determined eligible for special education services. Labels like SED, EBD, and BD can result in lowered or negative expectations that others have for these children. This study investigated the effects of label, child's gender and race, child's educational placement, and availability of definitional information on prognostic judgments for children with behavior problems. Three‐hundred‐sixty‐three undergraduate students enrolled in teacher education courses read a vignette and completed a prognostic outlook questionnaire. The questionnaire items asked for judgments about the likelihood of further behavioral disruption, the likelihood of developing and maintaining adequate interpersonal relationships, and requested an estimate of overall adjustment of the child. The vignette described an elementary school child with behavior problems and its content was held constant. Gender (boy vs. girl), race (African American vs. Caucasian), educational placement (receiving special education services full‐time through inclusion vs. self‐contained), diagnostic label (BD vs. EBD vs. SED) and definition of the disorders (present vs. absent) were varied. There was a label × race × placement interaction and a label × definition interaction for the behavioral disruptiveness dependent measure. Under the inclusion condition White children who had the SED or EBD label were rated to be significantly more likely to be disruptive than children with the BD label. For the 2‐way interaction when no definitional information was given children who had the SED label were rated more likely to be disruptive than children who had either the EBD or BD labels. There was also a significant gender × race × definition interaction on the overall adjustment measure. However, post hoc contrasts were not significant and no conclusions were drawn other than that the effect was minimal. There was a significant main effect of gender on the interpersonal relationships variable. Girls were judged as significantly more likely to develop appropriate interpersonal relationships with others than were boys. No other significant effects were noted. © 1999 John Wiley & Sons, Inc.  相似文献   
84.
The purpose of this study was to explore the factors affecting ICT adoption process and the implications for faculty training and technology leadership. Respondents represented a wide range of academic and professional positions. They identified themselves as Assistant, Associate, and Professor as well as Instructional Designer, Director of Technology, Information Manager, eLearning Manager, Assistant Department Chair, Associate Vice President of Academic Affairs and Consultant. The respondents identified Organizational Support, Leadership, Training and Development, and Resources as the predominate themes affecting Information and Communication Technology (ICT) adoption process in higher education. Evidence from this study offers insights on how higher education administrators and technology leaders could help their faculty and staff to implement appropriate ICT tools and practices to improve student learning.  相似文献   
85.
This article considers the place of knowledge in developing a socially just curriculum. It pursues the unusual route of a critique of Social Realism, a small but influential tendency in curriculum studies which claims that knowledge has been squeezed out by recent curriculum reforms and that there has been a descent into relativism. This paper shares the Social Realist view that ‘powerful knowledge’ is needed, and particularly by disadvantaged or marginalised young people. However, it critiques Social Realism's limited definition of ‘powerful knowledge’, arguing that for knowledge to be truly powerful, it must open up issues of power and inequality. It contests the Social Realist argument that critical pedagogy which begins from a subaltern stance is intrinsically relativist, arguing instead that alternative perspectives can help uncover concealed truths and break through hegemonic paradigms and ideologies. It argues that this is entirely compatible with a Critical Realist epistemology. Furthermore, the paper presents reasons why a socially just curriculum needs to draw upon the vernacular knowledge of marginalised groups as well as the canonical knowledge of academic disciplines to produce truly powerful knowledge and a social justice curriculum.  相似文献   
86.
Anterior cruciate ligament (ACL) injury prevention programmes have not been as successful at reducing injury rates in women’s basketball as in soccer. This randomised controlled trial (ClinicalTrials.gov #NCT02530333) compared biomechanical adaptations in basketball and soccer players during jump-landing activities after an ACL injury prevention programme. Eighty-seven athletes were cluster randomised into intervention (6-week programme) and control groups. Three-dimensional biomechanical analyses of drop vertical jump (DVJ), double- (SAG-DL) and single-leg (SAG-SL) sagittal, and double- (FRONT-DL) and single-leg (FRONT-SL) frontal plane jump landing tasks were tested before and after the intervention. Peak angles, excursions, and joint moments were analysed using two-way MANCOVAs of post-test scores while controlling for pre-test scores. During SAG-SL the basketball intervention group exhibited increased peak knee abduction angles (= .004) and excursions (= .003) compared to the basketball control group (= .01) and soccer intervention group (= .01). During FRONT-SL, the basketball intervention group exhibited greater knee flexion excursion after training than the control group (= .01), but not the soccer intervention group (= .11). Although women’s soccer players exhibit greater improvements in knee abduction kinematics than basketball players, these athletes largely exhibit similar biomechanical adaptations to ACL injury prevention programmes.  相似文献   
87.
In snowboarding, the wrist is the most common injury site, as snowboarders often put their arms out to cushion a fall. This can result in a compressive load through the carpals coupled with wrist hyperextension, leading to ligament sprains or carpal and forearm bone fractures. Wrist protectors are worn by snowboarders in an effort to reduce injury risk, by decreasing peak impact forces and limiting wrist extension to prevent hyperextension during falls. There is no international standard or universally accepted performance specification that snowboarding wrist protectors should conform to, resulting in an inability to judge which designs offer the best protection. This study investigated how surrogate arm design affected the stiffness of wrist protectors during quasi-static mechanical testing. Three surrogate arms with increasing design complexity were used to test three wrist protectors. The results show that surrogate design does influence the stiffness of snowboarding wrist protectors. Given that the surrogate does influence protector performance, it is recommended that a standard surrogate design is established for research and product testing.  相似文献   
88.
The purposes of this study were to examine: 1) the potential muscle-specific differences in voluntary electromechanical delay (EMD) and relaxation electromechanical delay (R-EMD), and 2) the effects of intensity on EMD and R-EMD during step incremental isometric muscle actions from 10 to 100% maximal voluntary isometric contraction (MVIC). EMD and R-EMD measures were calculated from the simultaneous assessments of electromyography, mechanomyography, and force production from the vastus lateralis (VL), vastus medialis (VM), and rectus femoris (RF) during step isometric muscle actions. There were no differences between the VL, VM, and RF for the voluntary EMDE-M (onsets of the electromyographic to mechanomyographic signals), EMDM-F (onsets the mechanomyographic to force production), or EMDE-F (onsets of the electromyographic signal to force production) as well as R-EMDE-M (cessation of electromyographic to mechanomyographic signal), R-EMDM-F (cessation of mechanomyographic signal to force cessation), or R-EMDE-F (cessation of electromyorgraphic signal to force cessation) at any intensity. There were decreases in all EMD and R-EMD measures with increases in intensity. The relative contributions from EMDE-M and EMDM-F to EMDE-F as well as R-EMDE-M and R-EMDM-F to R-EMDE-F remained similar across all intensities. The superficial muscles of the quadriceps femoris shared similar EMD and R-EMD measurements.  相似文献   
89.
Abstract

Doping research has predominantly been framed through an ethical lens, implicitly restricted to the realms of elite sport. Despite increasing anecdotal evidence of growing prevalence rates amongst recreational athletes, such as bodybuilders, these populations have largely been neglected within psychological research. This study aims to develop a theoretical framework relevant to these athletes. Data were collected over a five-month period from an online community forum dedicated to recreational bodybuilders. Purposive sampling was used to gather 118 webpages of doping-related discussion, which were qualitatively analysed using grounded theory applying Strauss’s coding paradigm. Inductive categories were integrated into a motivational framework that related recreational doping to social validation. Categories included the online community’s rite of passage, normative-inferences that facilitated doping, and deterrence factors related to fear of perceived health risks. Findings demonstrate that, for recreational bodybuilders, psychosocial processes are significantly related to doping motives, and that health factors are primary doping deterrents.  相似文献   
90.
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