构建远程开放教育学习支持服务模式的探讨     

毛汉领  黄全胜  吴晓东  黎阳 《广西广播电视大学学报》2011,(3):5-10,41

文章分析了英国开放大学对学习者支持服务的范式和我国部分地区远程开放教育学生对学习支持服务的要求,通过借鉴并结合实际,探讨构建以九项活动和五项要求为主要内容的远程开放教育学习支持服务模式,并对其实施进行了讨论.  相似文献   

Measurement of fluid flow generated by artificial cilia     

Kokot G  Vilfan M  Osterman N  Vilfan A  Kavčič B  Poberaj I  Babič D 《Biomicrofluidics》2011,5(3):34103-341039

We observed and measured the fluid flow that was generated by an artificial cilium. The cilium was composed of superparamagnetic microspheres, in which magnetic dipole moments were induced by an external magnetic field. The interaction between the dipole moments resulted in formation of long chains-cilia, and the same external magnetic field was also used to drive the cilia in a periodic manner. Asymmetric periodic motion of the cilium resulted in generation of fluid flow and net pumping of the surrounding fluid. The flow and pumping performance were closely monitored by introducing small fluorescent tracer particles into the system. By detecting their motion, the fluid flow around an individual cilium was mapped and the flow velocities measured. We confirm that symmetric periodic beating of one cilium results in vortical motion only, whereas asymmetry is required for additional translational motion. We determine the effect of asymmetry on the pumping performance of a cilium, verify the theoretically predicted optimal pumping conditions, and determine the fluid behaviour around a linear array of three neighbouring cilia. In this case, the contributions of neighbouring cilia enhance the maximal flow velocity compared with a single cilium and contribute to a more uniform translational flow above the surface.  相似文献   

Natural polymers as alternative consolidants for the preservation of waterlogged archaeological wood     

Zarah Walsh  Emma-Rose Janeček  Mark Jones 《文物保护研究》2017,62(3):173-183

In recent years, there has been increased interest in examining alternative polymers for the conservation of archaeological artefacts, particularly waterlogged timbers, providing better, renewable, greener alternatives to poly(ethylene glycol) (PEG). The degradation of PEG consolidants in the timbers of the sixteenth century warship Mary Rose has been examined and the rheological and thermal properties of PEG have been compared with its monomethyl and dimethyl ethers and several polysaccharide consolidants (chitosan, guar, and 2-hydroxyethyl cellulose) in order to evaluate their potential as alternative consolidants for the conservation of waterlogged wooden artefacts. Additionally, the effect of the polymers on the archaeological wood was characterised by thermogravimetric analysis and solid-state nuclear magnetic resonance spectroscopy. The results suggest that the future of conservation technologies lies with polysaccharide consolidant materials, which show enhanced compatibility with wooden artefacts with no detectable side effects while also being cheap, with extremely low toxicity, renewable, and sustainably resourced.  相似文献   

External and internal assessment in the final examination in secondary schools in Slovenia     

Marina Tavčar Krajnc 《International Studies in Sociology of Education》2013,23(2):121-137

This article examines the introduction of the final examination as an external national system of assessment of students in the transition from secondary school to university education. Since 1991 Slovenia has followed foreign models, the British one in particular; however, it has also considered its own traditional system of education. Students take the final examination (the matura) in three compulsory and two elective subjects; of which sociology can be one. A case study considering this subject demonstrates how external assessment can be fine tuned using internally supervised and assessed project work, in which seminar essays are produced. This article conducts a qualitative and quantitative analysis of the essays and structured questions forming the written examination; the same procedure is applied in the case of seminar essays. Also included are the opinions and experiences of students regarding their preparations for the final examination and their work in the seminars; the students’ feedback is decidedly positive. So far, the external and the internal results have shown little correlation, a fact that points to certain problems in the final examination assessment system. The positive results in sociology, considered in this contribution, suggest that it would be worthwhile applying similar assessment strategies in other subjects. It is, however, impossible to provide a straightforward answer to the question of a positive impact of the final examination on the desired improvement in the quality of the education process.  相似文献   

University stakeholders,intergenerational relationships and lifelong learning: a European case study     

Fidel Molina-Luque  Núria Casado  Ieva Stončikaitė 《Educational gerontology》2013,39(12):744-752

ABSTRACT

This study describes and analyzes the role of a Senior Programme of the University of Lleida (Catalonia, Spain) aimed at fostering older people’s lifelong learning, active ageing, social participation, and intergenerational relationships. Based on qualitative Action Research and Participant Observation, this article examines the participation of senior students as stakeholders in this Programme and in two European projects, SIforAGE and TOY, developed between 2012 and 2017. The findings reveal the importance of these learning and research activities to promote intergenerational solidarity, the quality of life of older people, and the development and improvement of the Senior Programme itself.  相似文献   

Value for Money as a School Improvement Strategy: Evidence from the New Inspection System in England∗     

Rosalind Levačić  Derek Glover 《School Effectiveness & School Improvement》2013,24(2):231-253

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Children’s Participation in Slovene Preschools: The Teachers’ Viewpoints and Practice     

Marcela Batistič Zorec 《欧洲教育》2013,45(2):154-168

This article presents part of the research performed in a project from 2008 to 2013, regarding the introduction of the Reggio Emilia approach to Slovene preschool educators. The study’s aim was to recognize the possible influence of the training—from 2009 to 2011—in this project on educators’ viewpoints and the promotion of children’s participation in practice. We believe that a potential reform of the Slovene national curriculum should establish the participation of children as one of its key principles. It seems that the two-year intensive training of educators, followed by projects in preschool practice, has been a successful step in this direction.  相似文献   

“You Don't Understand,This is a New War!” Analysis of Hate Speech in News Web Sites' Comments     

Karmen Erjavec  Melita Poler Kovačič 《Mass Communication and Society》2013,16(6):899-920

Because news websites' comments have become an important space of spreading hate speech, this article tries to contribute to uncovering the characteristics of Internet hate speech by combining discourse analyses of comments on Slovenian news websites with online in-depth interviews with producers of hate speech comments, researching their values, beliefs, and motives for production. Producers of hate speech use different strategies, mostly rearticulating the meaning of news items. The producers either are organized or act on their own initiative. The main motive of soldiers and believers is the mission; they share characteristics of an authoritarian personality. The key motives of the players are thrill and fun. The watchdogs are motivated by drawing attention to social injustice. The last two groups share the characteristics of a libertarian personality.  相似文献   

Center for Czechoslovak Exile Studies in Olomouc: Survey of the Past Twenty Years of Activity (1993–2013)     

Karel Konečný 《Slavic & East European Information Resources》2013,14(4):256-258

The article describes activities of the Center for Czechoslovak Exile Studies in Olomouc particularly for the period 2004–2013. During this period the center acquired many significant archival collections.  相似文献   

Remembering Nina Lenček, 18 January 1924–25 November 2014     

Robert H. Davis  Edward Kasinec  Henry R. Cooper  Lena Lenček 《Slavic & East European Information Resources》2013,14(3):149-156

Columbia University Libraries’ longtime Slavic & East European Studies Librarian Nina Len?ek passed away on November 25, 2014, at the age of 90. On January 22, 2015, a large group of her friends, family, and colleagues gathered at Butler Library to remember, honor, and celebrate her remarkable life and legacy.  相似文献