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961.
Judee K. Burgoon David B. Buller Laura K. Guerrero Clyde M. Feldman 《Communication Studies》2013,64(3-4):263-280
Past research on deception success has focused on receiver judgments, ignoring deceiver perceptions, which may influence the ways deceivers choose to behave in interpersonal interactions. The present study investigated how several preinteractional and interactional factors affect both deceiver and observer perceptions of deception success. Preinteractional factors included three that have been found relevant to deceptive communication: social skill, self‐monitoring, and motivation. Interactional factors included receiver suspicion, plus four proposed by the four‐factor theory of deception (anxiety, affect, task difficulty, and behavioral control). Results indicated that deceivers’ perceptions of success were more affected by interactional factors (especially anxiety, interaction difficulty, and conversational normality). Conversely, observers were more affected by preinteractional factors such as deceiver social skill. However, motivation, self‐monitoring, and conversational normality affected both deceivers’ and observers’ assessments: greater motivation and self‐monitoring, coupled with more natural, expected communication, yielded greater believability in deceivers’ own eyes and the eyes of observers. 相似文献
962.
Current macro- and microfluidic approaches for the isolation of mammalian cells are limited in both efficiency and purity. In order to design a robust platform for the enumeration of a target cell population, high collection efficiencies are required. Additionally, the ability to isolate pure populations with minimal biological perturbation and efficient off-chip recovery will enable subcellular analyses of these cells for applications in personalized medicine. Here, a rational design approach for a simple and efficient device that isolates target cell populations via magnetic tagging is presented. In this work, two magnetophoretic microfluidic device designs are described, with optimized dimensions and operating conditions determined from a force balance equation that considers two dominant and opposing driving forces exerted on a magnetic-particle-tagged cell, namely, magnetic and viscous drag. Quantitative design criteria for an electromagnetic field displacement-based approach are presented, wherein target cells labeled with commercial magnetic microparticles flowing in a central sample stream are shifted laterally into a collection stream. Furthermore, the final device design is constrained to fit on standard rectangular glass coverslip (60 (L)×24 (W)×0.15 (H) mm3) to accommodate small sample volume and point-of-care design considerations. The anticipated performance of the device is examined via a parametric analysis of several key variables within the model. It is observed that minimal currents (<500 mA) are required to generate magnetic fields sufficient to separate cells from the sample streams flowing at rate as high as 7 ml∕h, comparable to the performance of current state-of-the-art magnet-activated cell sorting systems currently used in clinical settings. Experimental validation of the presented model illustrates that a device designed according to the derived rational optimization can effectively isolate (∼100%) a magnetic-particle-tagged cell population from a homogeneous suspension even in a low abundance. Overall, this design analysis provides a rational basis to select the operating conditions, including chamber and wire geometry, flow rates, and applied currents, for a magnetic-microfluidic cell separation device. 相似文献
963.
The main goal of the 2009 UNESCO Framework for Cultural Statistics is to facilitate comparisons through a common understanding of culture and the use of standardized definitions and classifications. This review contains an in-depth analysis of the 2009 Framework's contribution to the existing literature on measuring the economic impact of culture, and it concludes by suggesting future avenues of research. By achieving international consensus on the concept of culture and its measurement, we will be able to progress in our studies of the competitive advantages that allow cultural firms to generate wealth nowadays. 相似文献
964.
Though discipline-specific approaches to literacy instruction can support adolescents' academic literacy and identity development, scant attention has been paid to ways of targeting such instruction to address individual student needs. Dialogic writing assessment is an approach to conducting writing conferences that foregrounds students' composing process so that teachers can assess and support that process with instructional feedback. Because such feedback is immediate, teachers can observe how students take it up. While dialogic assessment has shown promise as an approach to revealing and supporting students' writing processes in English Language Arts classrooms, it remains to be explored how this approach can support developing writers in other subject areas. This paper offers an analytic narrative account of how a high school social studies teacher used this method to support the writing process of one student, exploring what the method revealed about the challenges the student faced in writing about history, the gaps and misconceptions in their understanding of history and the intersection between the two. We discuss how certain ‘mediational moves’ the teacher employed enabled the student to compose collaboratively with the teacher, and in this collaborative composing, to capture ideas that she later used in her independent writing. 相似文献
965.
This study examined whether appraisals of 45th U.S. President Donald J. Trump by 1433 adolescents (Mage = 16.1, SDage = 1.16, Female = 56.9%, Latinx = 43.6%, White = 35.7%, Black = 12.6%, Asian = 5.8%) predicted change from 2017 to 2018 across four dimensions of sociopolitical development (SPD): marginalization, critical analysis, civic efficacy, and political action. Trump supporters declined in awareness of inequality and race consciousness but increased in voting intentions. Trump detractors increased in awareness of inequality, race consciousness, and experiences of discrimination. Trump supporters and detractors increased in civic efficacy compared to youth with no opinion. Additional findings were moderated by race and ethnicity. Findings suggest adolescents’ SPD has been shaped in distinct ways by the Trump era. 相似文献
966.
This article reports on a survey of 332 Year 3 students from 14 Australian schools. We are interested in exploring Year 3 primary school student aspirations and what this data shows us about any societal changes, or not. This study is timely as it reports on contemporary data within an Australian educational context marked by significant investment in improving equitable gendered participation, particularly for girls entering STEM. Drawing on conceptions of masculinities and femininities as social constructions, we report on the participants’ desired occupations and explore their justifications for such choices. The top three occupations for boys included careers in professional sports, STEM-related jobs and policing/defence. Girls reported wanting to be teachers, veterinarians or to work in the arts as their top choices. As part of our exploration, we found issues of money and power—traditionally coded masculine—and conceptions of love and care—traditionally coded feminine—ingrained in boys’ and girls’ justifications for their desired trajectories. Findings are significant for illustrating how traditional constructions of gender are ingrained in career choices in the early years of primary school and how policy agendas to widen participation need to start early in life. 相似文献
967.
Aimee Code Laura Fox Kathryn Asbury Umar Toseeb 《British Journal of Special Education》2022,49(2):168-189
Due to the Covid-19 pandemic, the start of the academic year in September 2020 was a unique time for those transitioning to a new school. This study aimed to explore the experiences of parents who supported autistic children making a range of different school transitions in 2020. Semi-structured interviews were carried out with 13 parents of autistic children in the UK, and data were analyzed with reflexive thematic analysis. For some parents, the Covid-19 pandemic negatively impacted on aspects of school transitions. However, other parents expressed the view that these same circumstances created opportunities to approach the school transition in a unique, improved manner. This article sheds light on the heterogeneity of experiences and perceptions of parents of autistic children, and highlights the need to examine the impact of Covid-19 on school transitions, including practices that it may be advantageous to retain. 相似文献
968.
M. Velasco-Villa R. Castro-Linares F. Rosales-Hernández B. del Muro-Cuéllar M.A. Hernández-Pérez 《Journal of The Franklin Institute》2013,350(10):2911-2935
This paper considers a synchronization strategy for a group of differentially driven mobile robots subject to input time-delayed control signals. The continuous time model of the vehicles is exactly discretized in order to obtain a larger dimension representation free of delays. The control strategy is based on the concept of synchronization, under two main assumptions: a specific formation for the group of robots and the tracking of a particular desired trajectory. The control strategy proposed in this work allows the consideration of causal feedback laws avoiding the use of an additional prediction strategy that counteracts the undesired input time-delay effects. The performance of the synchronization strategy is evaluated by real-time experiments with the help of a group of three mobile robots and an indoor absolute localization system based on artificial vision. 相似文献
969.
Highly skilled return migrants contribute to the establishment of ties between the home and host systems. This paper studies how the professional ties, which Argentinean researchers built up during the time spent in foreign research systems, influence their collaboration patterns and their research outputs upon return. It confirms the expectation that having foreign work experience helps to explain the propensity to co-publish internationally and it also shows that researchers collaborate to a higher degree with their former host system. Another central finding is that foreign work experience has a positive effect on the propensity to publish in journals with a high impact factor. Additionally, a large share of this type of research is published without international co-authorship. We therefore do no not find evidence of a lack of publication autonomy in the case of Argentinean returnees. 相似文献
970.
Laura Herbrich Ernst Pfeiffer Ulrike Lehmkuhl Nora Schneider 《Journal of sports sciences》2013,31(11):1115-1123
Abstract Competitive sport has been under increasing discussion as a possible favourable factor in the development of eating disorders among children and adolescents. The aim of this study was to determine the frequency of sport-specific eating disorders, in line with the concept of anorexia athletica. This prospective field study included one experimental group and two control groups (disease and healthy). Fifty-two pre-professional ballet dancers aged 13–20 years were tested for clinical eating disorders, anorexia athletica criteria, eating disorder related psychopathology and self-concept, and were compared with 52 patients with anorexia nervosa and 44 non-athletic controls of the same age. The study was conducted using semi-structured interviews as well as self-report questionnaires. A clinical eating disorder diagnosis was made in 1.9% of the ballet dancers versus 0% of the high school students; anorexia athletica was diagnosed in 5.8% of the dancers versus 2.3% of the students. Ballet dancers scored lower than patients with anorexia nervosa with regard to eating disorder related psychopathology and higher than the patients with regard to self-concept. We conclude that more sensitive tools to differentiate between sport-specific (eating) patterns, anorexia athletica and clinically relevant eating disorders are needed, especially for aesthetic sports such as ballet. It remains an important goal to identify athletes with symptoms of anorexia athletica irrespective of their physique and/or sport. 相似文献