Mothers' use of cognitive state verbs in picture-book reading and the development of children's understanding of mind: a longitudinal study   总被引：2，自引：0，他引：2  

Adrián JE  Clemente RA  Villanueva L 《Child development》2007,78(4):1052-1067

Mothers read stories to their children (N=41) aged between 3.3 years and 5.11 years old, and children then completed two false-belief tasks. One year later, mothers read a story to 37 of those children who were also given four tasks to assess their advanced understanding of mental states. Mothers' early use of cognitive verbs in picture-book reading correlated with their children's later understanding of mental states. Some pragmatic aspects of maternal input correlated with children's later outcomes. Two different factors in mothers' cognitive discourse were identified, suggesting a zone of proximal development in children's understanding of mental states.  相似文献   

A novel way of liver preservation improves rat liver viability upon reperfusion   总被引：4，自引：0，他引：4  

Kebis A  Kukan M  Grancic P  Jakubovský J 《Journal of Zhejiang University. Science. B》2007,8(5):289-295

Background/aim： Currently, the liver is cold-preserved at 0-4 ℃ for experimental and clinical purposes. Here, we investigated whether milder hypothermia during the initial phase of the preservation period was beneficial for liver viability upon reperfusion. Methods： In the first set of experiments, rat livers were preserved either conventionally in clinically used histidine-trypthopan-ketoglutarate （HTK） solution （Group A： 45 min and Group B： 24 h） or by slow cooling HTK solution （from 13 ℃ to 3 ℃） during the initial 45 min of preservation （Group C： 24 h）. In the second set of experiments, additional groups of livers were evaluated： Group BB-preservation according to Group B and Group CC-preservation according to Group C. Further, some livers were preserved at 13 ℃ for 24 h. Livers were then reperfused using a blood-free perfusion model. Results： Bile production was approximately 2-fold greater in Group C compared to Group B. Alanine transaminase （ALT） and aspartate transaminase （AST） release into perfusate were 2-3-fold higher in Group B compared to Group C. No significant differences were found in ALT and AST release between Group C and Group A. Livers in Group CC compared to Group BB exhibited significantly lower portal resistance, greater oxygen consumption and bromosulfophthalein excretion into bile and lower lactate dehydrogenase （LDH） release into perfusate. Histological evaluation of tissue sections in Group BB showed parenchymal dystrophy of hepatocytes, while dystrophy ofhepatocytes was absent in Group CC. Livers preserved at 13 ℃ for 24 h exhibited severe ischemic injury Conclusion： These results suggest that the conventional way of liver preservation is not suitable at least for rat livers and that slow cooling of HTK solution during the initial phase of cold storage can improve liver viability during reperfusion.  相似文献   

含左手介质非对称三层平板波导的模式特性研究     

李炳祥  谢应茂 《赣南师范学院学报》2011,32(6):42-44

基于三层平板波导TE模的色散关系,分析覆盖层为左手介质而其他层为右手介质的非对称三层平板波导的模式特性.结果表明,只有满足一定条件TE0才存在,而高次模的截止频率随着非对称因子a增大而减小.  相似文献   

Higher education mergers in Europe: a comparative study of the post-merger phase     

Ripoll-Soler  Carlos  de-Miguel-Molina  María 《Tertiary Education and Management》2019,25(3):255-271

Tertiary Education and Management - The aim of this study is to compare the results of successful mergers in terms of ranking performance of the so called ‘world-class’ universities in...  相似文献   

An institutional North Star: the role of values in presidential communication and decision-making     

Jon McNaughtan  Sarah Louis  Hugo A. García  Elisabeth D. McNaughtan 《Journal of Higher Education Policy & Management》2019,41(2):153-171

Mission statements have been a staple of higher education institutions for decades, but little is known of how they are used as a tool for institutional decision-making. Using three distinct data sources, this study relies on framing theory to analyse the perceptions of university presidents in the United States on the role of mission statements in deciding when and how to communicate. Further, we compare the espoused values of university mission statements to the statements university presidents made following the 2016 US presidential election. Findings indicate presidents view mission statements as central to their decision to communicate and our analysis reveals some congruence between mission statements and public statements.  相似文献   

Empowering satisfaction: analyzing the relationship between empowerment,work conditions,and job satisfaction for international center managers     

McNaughtan  Jon  García  Hugo A.  Garza  Tiberio  Harwood  Yvonne R. 《Tertiary Education and Management》2019,25(1):83-99

Tertiary Education and Management - The rising cost of higher education has driven researchers and practitioners alike to identify areas of waste and search for practices associated with increasing...  相似文献   

Resisting schoolification from the classroom. Exploring the professional identity of early childhood teachers in Chile / Resistiendo la escolarización desde el aula. Explorando la identidad profesional de las docentes de primera infancia en Chile     

Marcela Pardo  María-José Opazo 《Cultura y Educación》2019,31(1):67-92

This article presents a study which aimed to explore the professional identity of early childhood teachers in Chile, applying a sociocultural approach. Relying on an exploratory qualitative design, data were collected through focus groups and photo-narratives. The findings show that these teachers understand that child-centred pedagogy is the pillar of their professional identity; that they perceive that this is under threat from the schoolification of early childhood education; and that they admit that their capacity to resist this tendency is limited to the classroom. These findings suggest that, having scarce resources available to negotiate their professional identity in their working context, early childhood teachers in Chile have a limited capacity for agency.  相似文献   

How do students process complex formative feedback in question-answering tasks? A think-aloud study     

Máñez  Ignacio  Vidal-Abarca  Eduardo  Kendeou  Panayiota  Martínez  Tomás 《Metacognition and Learning》2019,14(1):65-87

Metacognition and Learning - The goal of this study was to examine how students process formative feedback that included corrective and elaborative information in online question-answering tasks....  相似文献   

Students’ Views on Difficulties in Learning Histology     

Magdalena García  Noemí Victory  Alicia Navarro-Sempere  Yolanda Segovia 《Anatomical sciences education》2019,12(5):541-549

The aim of this study was to provide a better understanding of the main difficulties hindering undergraduate biology students in learning histology. The study utilized a self-administered questionnaire which included three closed-ended and two open-ended questions: (1) if students had difficulty in learning about each tissue type; (2) what might be the problem in learning about the tissue at hand; (3) which topics were the most difficult; (4) what were the possible reasons that made image identification of tissue types difficult; and (5) how to improve the course curriculum from a student perspective. The survey was administered to 139 undergraduate biology students enrolled in a histology course, of which 101 surveys were completed and analyzed both qualitatively and quantitatively. The topics that students experienced the most difficulties with were: nervous tissue, plant tissues, bone tissues, and glandular epithelial tissue. The main reasons students experienced difficulties with these tissue types, according to the students themselves, were the nature of the topic, grasping the terminology used, and insufficient teaching time. Students suggested the adoption of strategies such as: teaching based on practical tasks; reducing the content of the histology curriculum; adding anatomy subjects; and making histology education more interesting.  相似文献   

Economics of motion pictures: the state of the art     

Darlene C. Chisholm  Víctor Fernández-Blanco  S. Abraham Ravid  W. David Walls 《Journal of Cultural Economics》2015,39(1):1-13

  相似文献