Multimedia learning     

Linda Lohr  James E. Gall 《Educational technology research and development : ETR & D》2004,52(3):87-90

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A Troubled Marriage of Discourses: Science Writing and Travel Narrative in Louis and Elizabeth Agassiz's a Journey in Brazil     

Linda S. Bergmann 《Journal of American culture (Malden, Mass. : 2003)》1995,18(2):83-88

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The development and implementation of an instrument to assess cognitive performance in high school biology     

Bernard W. Benson  Linda L. Young 《科学教学研究杂志》1971,8(3):211-224

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Relative effects of modeling on the acquisition of wait-time by preservice elementary teachers and concomitant changes in dialogue patterns     

Linda R. Deture 《科学教学研究杂志》1979,16(6):553-562

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A survey of UK clinical librarianship: February 2004     

Ward L 《Health information and libraries journal》2005,22(1):26-34

AIM: This article will describe a survey carried out in February 2004, the aim of which was to summarize the form and content of clinical librarian (CL) and other similar outreach information services to UK health professionals in the acute (secondary or tertiary) sector. OBJECTIVES: (i) To survey the activities and views of UK information professionals offering information services involving the librarians' presence in the clinical setting, (ii) to develop a tool to explore critical aspects of this form of information work, (iii) to create a contacts database for UK CLs, to be made available on the Internet. METHODOLOGY: All known information specialists/librarians offering CL or similar services were surveyed. The semi-structured questionnaire was piloted. Respondents were asked to consider their activity over a period of 4 weeks. RESULTS: Twenty-six people responded to the invitation to take part and met the inclusion criteria. CONCLUSIONS: A summary of a 'typical' clinical librarian revealed by this survey is given, with a major conclusion that there is a very mixed picture of activity. Opinion on how far CLs should go in fully appraising search results is uncertain. The survey suggests reasons for this and the developments that may influence change are discussed. Recommendations for future research and development are offered.  相似文献   

The Unesco Institute for Education, Hamburg: 25 years in the service of educational research     

Linda Priscott 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1976,10(1):311-315

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A microfluidic device for on-chip agarose microbead generation with ultralow reagent consumption     

Linda Desbois  Adrien Padirac  Shohei Kaneda  Anthony J. Genot  Yannick Rondelez  Didier Hober  Dominique Collard  Teruo Fujii 《Biomicrofluidics》2012,6(4)

Water-in-oil microdroplets offer microreactors for compartmentalized biochemical reactions with high throughput. Recently, the combination with a sol-gel switch ability, using agarose-in-oil microdroplets, has increased the range of possible applications, allowing for example the capture of amplicons in the gel phase for the preservation of monoclonality during a PCR reaction. Here, we report a new method for generating such agarose-in-oil microdroplets on a microfluidic device, with minimized inlet dead volume, on-chip cooling, and in situ monitoring of biochemical reactions within the gelified microbeads. We used a flow-focusing microchannel network and successfully generated agarose microdroplets at room temperature using the “push-pull” method. This method consists in pushing the oil continuous phase only, while suction is applied to the device outlet. The agarose phase present at the inlet is thus aspirated in the device, and segmented in microdroplets. The cooling system consists of two copper wires embedded in the microfluidic device. The transition from agarose microdroplets to microbeads provides additional stability and facilitated manipulation. We demonstrate the potential of this method by performing on-chip a temperature-triggered DNA isothermal amplification in agarose microbeads. Our device thus provides a new way to generate microbeads with high throughput and no dead volume for biochemical applications.  相似文献   

Social information processing and coping strategies of shy/withdrawn and aggressive children: does friendship matter?     

Burgess KB  Wojslawowicz JC  Rubin KH  Rose-Krasnor L  Booth-LaForce C 《Child development》2006,77(2):371-383

The primary objectives of this investigation were to examine the attributions, emotional reactions, and coping strategies of shy/withdrawn and aggressive girls and boys and to examine whether such social cognitions differ within the relationship context of friendship. Drawn from a sample of fifth and sixth graders (M age = 10.79 years; SD = .77), 78 shy/withdrawn, 76 aggressive, and 85 control children were presented with hypothetical social situations that first involved unfamiliar peers, and then a mutual good friend. Results revealed group and gender differences and similarities, depending on the relationship context. From our findings emerges a central message: friends' involvement during interpersonal challenges or stressors mitigates children's attributions, emotions, and coping responses.  相似文献   

'Virgin birth' stem cells bypass ethical objections     

Geddes L 《New scientist (1971)》2006,191(2558):19

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Competence in nursing informatics among nursing students and staff at a nursing institute in Sweden     

Ragneskog H  Gerdner L 《Health information and libraries journal》2006,23(2):126-132

BACKGROUND: Information technology (IT) has slowly been implemented in many health-care organizations (i.e. hospitals). The use of computers has advanced to home care and long-term facilities. Consequently, it is important that nurses are able to demonstrate competence and feel confident in the use of IT. Yet, research has reported that nursing students have varying degrees of competence and experience with IT. AIMS: The purpose of this study was to ascertain nursing students' and nursing educators' self-reported attitudes, skills and experiences using IT. METHODS: Data were collected through a written survey distributed and completed by 247 nursing students (45 of whom were registered nurses who participated in extension courses) and 52 staff members from the nursing faculty at a university in Sweden. RESULTS: Two-thirds of the students and 92% of the nursing educators had access to the Internet from their homes. Of the students, 71% identified their IT skills as being sufficient for their current or future work as a registered nurse. Nurse educators were less confident in the students' ability, reporting that only 29% of nursing students had sufficient IT skills. Comparatively, 48% of the nursing educators believed that they themselves had sufficient IT skills for their role as a nurse educator. CONCLUSIONS: It is important that nursing students have basic IT skills and are familiar with e-mail, word-processing and various databases on the World Wide Web. Findings indicate that participants had a deficit in these skills, suggesting the need to integrate IT into the nursing curriculum.  相似文献