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ABSTRACT

This study aimed to systematically review the association between cardiorespiratory fitness and telomere length (TL). Studies were identified from searches in Cochrane Central, PubMed, Scopus, Sportdiscus, and Web of Science databases through July 2019. Eligibility criteria included: cross-sectional, prospective, and experimental study design; outcomes included TL; results expressed the relationship between cardiorespiratory fitness and TL; studies published in English, Portuguese, or Spanish. A total of 20 articles met the inclusion criteria. Sixteen studies (80%) reported a significant relationship between cardiorespiratory fitness, or training load, and TL. Better cardiorespiratory fitness or a large cardiorespiratory training load are associated with an increase in TL. Although, TL was related to regular moderate-to-vigorous aerobic exercise and cardiorespiratory fitness in older healthy humans, it was not related to cardiorespiratory fitness among young subjects. There seems to be a positive and significant relationship between cardiorespiratory fitness and TL, mainly among middle age and older people, which emphasizes the importance of cardiorespiratory fitness for healthy ageing. Therefore, endurance exercise and better cardiorespiratory fitness may regulate the TL in middle age and older adults, slowing the cellular ageing process.  相似文献   
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课程效能评价——以“教育效能与教育评价”为例   总被引:3,自引:0,他引:3  
“教育效能与教育评价”课程以个人的、团队的、组织的(PTO)效能和规划、实施与评价(PIE)代表其内容与过程的主要结构。教师以双语教学——中英文的阅读材料、学习指南、课程纲要和视听讲座的形式,采取具有高度互动性的学习方式,如个人与小组层次的讨论、比赛、模拟、奖励、批判性反思,向50名来自中小学、大学和行政机关的高层教育领导者授课,以增加课程的效能。文章所展示的就是如何应用课程中有关效能与评价的基本原理评价这一课程本身的效能。  相似文献   
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The susceptibility to gaze cueing in deaf children aged 7–14 years old (N = 16) was tested using a nonlinguistic task. Participants performed a peripheral shape-discrimination task, whereas uninformative central gaze cues validly or invalidly cued the location of the target. To assess the role of sign language experience and bilingualism in deaf participants, three groups of age-matched hearing children were recruited: bimodal bilinguals (vocal and sign-language, N = 19), unimodal bilinguals (two vocal languages, N = 17), and monolinguals (N = 14). Although all groups showed a gaze-cueing effect and were faster to respond to validly than invalidly cued targets, this effect was twice as large in deaf participants. This result shows that atypical sensory experience can tune the saliency of a fundamental social cue.  相似文献   
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This study underscored the importance of addressing the well‐being of college students of Asian descent, because these students had higher rates of depression and lower positive feelings about their ethnic group compared with students of European descent, as measured by the Affirmation subscale of the Ethnic Identity Scale. Affirmation mediated the depression difference between these groups. Within the Asian group, affirmation and depression were inversely correlated, and this relationship was mediated by acculturative stress.  相似文献   
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Miniaturization in biological analyses has several advantages, such as sample volume reduction and fast response time. The integration of miniaturized biosensors within lab-on-a-chip setups under flow conditions is highly desirable, not only because it simplifies process handling but also because measurements become more robust and operator-independent. In this work, we study the integration of flow amperometric biosensors within a microfluidic platform when analyte concentration is indirectly measured. As a case study, we used a platinum miniaturized glucose biosensor, where glucose is enzymatically converted to [Formula: see text] that is oxidized at the electrode. The experimental results produced are strongly coupled to a theoretical analysis of fluid dynamic conditions affecting the electrochemical response of the sensor. We verified that the choice of the inlet flow rate is a critical parameter in flow biosensors, because it affects both glucose and [Formula: see text] transport, to and from the electrode. We identify optimal flow rate conditions for accurate sensing at high time resolution. A dimensionless theoretical analysis allows the extension of the results to other sensing systems according to fluid dynamic similarity principles. Furthermore, we developed a microfluidic design that connects a sampling unit to the biosensor, in order to decouple the sampling flow rate from that of the actual measurement.  相似文献   
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We analyze the role of social capital in academic careers. We distinguish between ties with reputed scientists and laboratories (scientific and technical human capital) and ties with influential actors with respect to recruitment/promotion decisions (political capital). We use institution-wise bibliometric indicators to measure separately the two types of capital for a large sample of French and Italian academic physicists between 2000 and 2003/2005. Controlling for scientific productivity, seniority and gender issues, career progress is explained by: the scientist's affiliation to important public research organizations (scientific and technical human capital - France); his/her social ties with senior members of the discipline, who exercise control over careers (political capital - Italy), and the commitment to work with senior colleagues in his/her own university (political capital - Italy). Significant differences exist between the two countries also with respect to the importance of productivity, seniority, and gender.  相似文献   
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The aim of this paper is to analyze how fathers position themselves within their everyday discursive practices at home. We consider the shift from a traditional father figure, defined and perceived as a provider, to an emerging collaborative one in order to explore the discursive acts of fathers’ positioning through the observation of the everyday activities of eight middle-class Italian families. Adopting the positioning theory and the discursive approach as guiding analytical concepts, we discuss how fathers position themselves as representatives and as mediators of the family and of its everyday activities. We propose a qualitative analysis of discursive interactions in order to show how Italian fathers position themselves as active partners in different activities at home, ascribing meanings to what they do with the other family members and with the researchers.  相似文献   
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Among all TN projects approved and running under SOCRATES II, E4 offers the widest perspective over all Engineering/Technology education fields covering relevant and transversal issues, which are definitely not branch specific. The paper first introduces the general aim of the project, underlining the meaning of the European Dimension of EE (Engineering Education), to facilitate greater mobility of skilled personnel and ensuring integration of the different systems throughout the continent. Innovative contributions to international dimension and curriculum development, high standards, quality insurance and accreditation, use of ICT tools are the main subjects of the Network activities: these are described in details in section 2, which is followed by the strategic approach and principal outcomes (section 3 and 4 respectively). Organisation and dissemination are also key aspects of the project, dealt by 3 Transversal Actions, common to all activities and supporting the working groups outcomes, enhancing visibility.  相似文献   
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