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81.
Abstract

Research shows that teachers’ and educators’ responses to gender diversity issues in schools either improves or limits the experiences of students. The school counsellor has an important role to play in this process by working closely with other stakeholders to advocate for transgender, intersex and genderqueer (TIG) students. Following a review of recent developments in the USA, recommendations are made and resources identified to assist school counsellors in validating TIG students, and improving school systems in pursuit of their academic, social and emotional success.  相似文献   
82.
This article proposes 2 classes of ridge generalized least squares (GLS) procedures for structural equation modeling (SEM) with unknown population distributions. The weight matrix for the first class of ridge GLS is obtained by combining the sample fourth-order moment matrix with the identity matrix. The weight matrix for the second class is obtained by combining the sample fourth-order moment matrix with its diagonal matrix. Empirical results indicate that, with data from an unknown population distribution, parameter estimates by ridge GLS can be much more accurate than those by either GLS or normal-distribution-based maximum likelihood; and standard errors of the parameter estimates also become more accurate in predicting the empirical ones. Rescaled and adjusted statistics are proposed for overall model evaluation, and they also perform much better than the default statistic following from the GLS method. The use of the ridge GLS procedures is illustrated with a real data set.  相似文献   
83.
84.
This study tests the agenda-setting hypothesis for the environmentalissue in Hong Kong from 1983 to 1995. It was found that theagenda-setting hypothesis was supported for the initial periodof five and a half years. In the subsequent period of sevenand a half years, despite the increased media coverage of theissues, there was a significant drop in the perceived salienceof the environmental problem. This may be due to the dilutionof public attention as a result of diversity in the news agendaand reporting of local environmental problems as ‘soft’news. It was also found that the environmental issue failedto compete with other prominent issues directly affecting thepublic. The mass media played a much less important role inkeeping the environmental issue on the public agenda at thelater stage.  相似文献   
85.
农民的决策行为受到家庭因素的制约,而家庭出身将如何影响到农民的创业行为,这仍旧是一个悬而未决的重要研究问题。本文基于上海财经大学千村调查的数据,就体制内精英家庭出身与农民创业之间的关系进行了分析,并得到以下研究结论:家庭出身的优越性将显著提高农民的创业动机,相比于普通出身或寒门出身,那些出身于体制内精英家庭的农民更倾向于选择创业。同时,体制内精英家庭出身对农民创业的影响还受到家庭社会地位的制约,即在那些社会地位较高的家庭,体制内精英家庭出身对农民创业所产生的积极效应更为明显。进一步分析表明,个体人力资本将影响到农民创业与否的选择,过高或过低的人力资本均将降低农民创业的动力,但人力资本对于精英家庭出身的调节效应并不显著。本文从精英家庭出身入手,探索家庭层面的非市场力量对农民创业的作用机制,不仅有利于挖掘农民创业的内在动因,而且拓展了农村精英的研究维度,为传统精英理论的发展提供新的研究视角。  相似文献   
86.
Optofluidics may hold the key to greater success of photocatalytic water treatment. This is evidenced by our findings in this paper that the planar microfluidic reactor can overcome the limitations of mass transfer and photon transfer in the previous photocatalytic reactors and improve the photoreaction efficiency by more than 100 times. The microreactor has a planar chamber (5 cm×1.8 cm×100 μm) enclosed by two TiO(2)-coated glass slides as the top cover and bottom substrate and a microstructured UV-cured NOA81 layer as the sealant and flow input∕output. In experiment, the microreactor achieves 30% degradation of 3 ml 3×10(-5)M methylene blue within 5 min and shows a reaction rate constant two orders higher than the bulk reactor. Under optimized conditions, a reaction rate of 8% s(-1) is achieved under solar irradiation. The average apparent quantum efficiency is found to be only 0.25%, but the effective apparent quantum efficiency reaches as high as 25%. Optofluidic reactors inherit the merits of microfluidics, such as large surface∕volume ratio, easy flow control, and rapid fabrication and offer a promising prospect for large-volume photocatalytic water treatment.  相似文献   
87.
A method for monitoring the biological exocytotic phenomena on a microfluidic system was proposed. A microfluidic device coupled with functionalities of fluorescence imaging and amperometric detection has been developed to enable the real-time monitoring of the exocytotic events. Exocytotic release of single SH-SY5Y neuroblastoma cells was studied. By staining the cells located on integrated microelectrodes with naphthalene-2,3-dicarboxaldehyde, punctuate fluorescence consistent with localization of neurotransmitters stored in vesicles was obtained. The stimulated exocytotic release was successfully observed at the surface of SH-SY5Y cells without refitting the commercial inverted fluorescence microscope. Spatially and temporally resolved exocytotic events from single cells on a microfluidic device were visualized in real time using fluorescence microscopy and were amperometrically recorded by the electrochemical system simultaneously. This coupled technique is simple and is hoped to provide new insights into the mechanisms responsible for the kinetics of exocytosis.  相似文献   
88.
跨学科研究是当代高校适应和服务于经济社会及科学技术发展的重要途径,如何有效组织跨学科研究是摆在高校面前的重大现实课题之一。美国斯坦福大学Bio-x计划在跨学科研究的管理体制和运行机制方面进行了积极的探索和实践,取得了显著成效,包括科学的跨学科战略规划、创新创业的组织文化、有效的跨学科研究平台、实体运作的体制及项目驱动的机制、与产业界紧密联系等成为其成功的关键因素。本文对斯坦福大学B io-x跨学科研究计划进行深入研究和分析,旨在为中国高校跨学科研究的有效组织提供借鉴。  相似文献   
89.
Three hundred and seven teacher education students of a Hong Kong university were administered two questionnaires, one measuring emotional autonomy (EAS) and the other measuring perceived parenting styles (PAQ) of their parents. It was found that the Hong Kong teacher education students tended to be autonomous and they characterized their parents as authoritative instead of authoritarian. In addition, the emotional autonomy scale was positively related to authoritarianism, but negatively related to authoritativeness and permissiveness of parenting. Emotional detachment instead of autonomy seemed to be a more appropriate meaning of EAS for the interpretation of results. Implications were drawn for future research including development of an improved instrument in measuring emotional autonomy to study its associations with perceived parenting styles of young people across cultures.  相似文献   
90.
Recent research has shown that attitudinal ambivalence has importantimplications on political attitudes and behavior. The conceptholds one of the keys to understanding complicated and seeminglycontradictory opinions of the public. This article examinesambivalence in public opinion regarding democratic reform inHong Kong. Analysis of a representative survey (N = 600) showsthat common citizens indeed have a significant degree of ambivalencetoward the government's political reform bill proposed in 2005.Regarding consequences, objective ambivalence is shown to havegreater predictive power than subjective ambivalence. The formerrelates negatively to attitude extremity and weakens the attitude–behaviorlinkage. However, contrary to the usual finding in the literature,objective ambivalence also relates positively to protest participationintention. The theoretical and social implications of the findingsare discussed. Received for publication June 29, 2007. Accepted for publication October 8, 2008.  相似文献   
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