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121.
Lise Stengaard Hansen Monika Åkerlund Terje Grøntoft Morten Ryhl-Svendsen Anne Lisbeth Schmidt Jan-Erik Bergh Karl-Martin Vagn Jensen 《Journal of Cultural Heritage》2012,13(1):22-27
The brown carpet beetle Attagenus smirnovi, Zhantiev 1973 (Coleoptera: Dermestidae) is an important pest of objects of organic origin in museums of cultural and natural history in Europe. Future climate changes are expected to lead to increasing temperatures, which will affect the pest status of this species. In the present study a laboratory investigation was conducted to elucidate the effect of temperature and humidity on the amounts of organic material consumed by larvae of A. smirnovi. In the case of new and old skin, consumption was approximately twice as high at 28 °C compared to 20 °C. Wool was consumed in the greatest amounts: 169 mg of wool was consumed in three months by 30 A. smirnovi larvae. The expected future climate changes in Scandinavia are assumed to lead to higher temperatures in museums and stores where climate is not regulated. Updated data on the present distribution of A. smirnovi in Europe show that it is widespread and common, also in regions with a climate that does not support its survival out of doors. Thus, dispersal of this pest probably only rarely occurs by flight, but usually with human activity. Due to the widespread distribution of A. smirnovi, it is likely that damages in museums and collections in Scandinavia due to this pest will increase as climate changes come into effect. 相似文献
122.
Thomas W. Farmer Man‐Chi Leung Kristen Keagy Daniel J. Boudah Patrick Akos Erin McDonough Cristin M. Hall 《Psychology in the schools》2009,46(4):362-374
This study examined the social preference nominations (i.e., “liked most” and “liked least”) in relation to peer group and classroom social dynamics in a sample of 622 fifth graders from 11 schools in a southeastern state. Liked most and liked least nominations were given to a small concentration of students within classrooms. The top five nominees for liked most and liked least tended to be in peer groups and associated with at least one classmate who shared their position as a top nominee. The majority of liked most nominations in a classroom were made toward members inside the nominator's group, whereas the majority of liked least nominations were made toward peers outside one's group. Students in the same peer group were more likely to nominate the same peers as liked most than were students who did not affiliate together. In contrast, the concordance for liked least nominations was moderate at both the peer‐group and classroom level. Implications for school‐based social interventions are discussed. © 2009 Wiley Periodicals, Inc. 相似文献
123.
The experience of attending college can be a stressful experience for many students, one that college and university counseling centers may have limited resources of time and finances to assuage. For instance, decision making may deteriorate during times of stress and result in a narrowed perceptual set. The present study sought to determine through a novel design whether meditative training could effectively address the situation. Results indicated that classroom-based meditative training improved executive functioning among college students regarding stress, cognitive flexibility, and insight. Such an approach to intervention may provide college and university counseling centers with greater opportunities to better meet student emotional and academic needs. 相似文献
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Brooke A. Moore Alison G. Boardman Cristin Jensen Lasser Kimberly M. Schmidt Clara E. Smith Vanessa S. Schwarz 《Teacher Development》2019,23(3):287-306
Reading comprehension models are being implemented in content-area settings to boost reading achievement. Yet, little research explores how such models are incorporated into teachers’ daily instructional practice. The authors used extended observations and interviews to examine the integration of Collaborative Strategic Reading (CSR), an evidence-based reading comprehension model, into the instructional practices of 15 middle school science, social studies, and language arts teachers. Findings indicated that high-integration teachers embedded CSR lessons into their curriculum and reinforced CSR strategy use throughout the week. These teachers also felt supported in their efforts by colleagues and school administrators. There is much to be learned from the ways in which teachers engage in the art of integrating new methods into their teaching. 相似文献
126.
This study compared the effectiveness of collaborative group composition and instructional method on reasoning gains and achievement in college biology. Based on initial student reasoning ability (i.e., low, medium, or high), students were assigned to either homogeneous or heterogeneous collaborative groups within either inquiry or didactic instruction. Achievement and reasoning gains were assessed at the end of the semester. Inquiry instruction, as a whole, led to significantly greater gains in reasoning ability and achievement. Inquiry instruction also led to greater confidence and more positive attitudes toward collaboration. Low-reasoning students made significantly greater reasoning gains within inquiry instruction when grouped with other low reasoners than when grouped with either medium or high reasoners. Results are consistent with equilibration theory, supporting the idea that students benefit from the opportunity for self-regulation without the guidance or direction of a more capable peer. 相似文献
127.
This article reports the results and conclusions of a mixed-methods research strategy designed to assess the potential of community networking in rural Tamil Nadu, India. The data reported and analyzed in this article include socioeconomic and household spending, agricultural marketing and price search, availability and use of information on agricultural problems, and communication media use. We use these data to define a framework of existing sources of information for various community agents, with a special emphasis on farmers. We analyze the methods and costs at which these agents obtain information, and identify information and communication gaps that information and communication technologies (ICTs) may help alleviate. This study allows us to demonstrate opportunities for socioeconomic development through ICT-enabled information access. The article concludes by stating the importance of basic communication technologies and contextually relevant information services, and suggesting recommendations for future research in this area. 相似文献
128.
Valentine Keri Duncan Jensen Lucas John 《Educational technology research and development : ETR & D》2021,69(4):1955-1985
Educational technology research and development - This phenomenological study opens up the embodied nature of play, adding to the field’s understanding of embodiment as it manifests in a... 相似文献
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130.
The purpose of this study was to determine if there is a difference between the self-perceptions of the behaviorally disordered child and the perceptions of the child by his/her teacher and mother. A related purpose was to determine if there are specific areas (factors) with greater discrepancies. Normal and behaviorally disordered children, matched by grade and sex, were evaluated using the Piers-Harris Children's Self-concept Scale. There were significantly lower scores given by the three evaluator groups for the behaviorally disordered. The teachers evaluated the behaviorally disordered children significantly lower than did the other evaluators. For the normal children, there were no significant differences between the three evaluator groups. The pattern of evaluations was the same for all factors. The only exception in each of these findings was Factor III—Physical Appearance and Attributes—in which both normal and behaviorally disordered children evaluated themselves lower than did their teachers and mothers. Implications of these findings for school personnel are discussed. 相似文献