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1.
Teaching approaches in higher education are at the general level well researched and have identified not only the two broad categories of content-focused and learning-focused approaches to teaching but also consonance and dissonance between the aspects of teaching. Consonance means that theoretically coherent teaching practices are employed, but dissonance occurs when two broad approaches are combined. Previous studies researched teaching approaches at the general level, whereas the present study, researched approaches to teaching at the course level. Three university teachers were interviewed in depth about their teaching approach to one particular course. Data were analyzed using qualitative content analysis. While previous studies have found that dissonance occurs between different aspects of teaching, this multi-case study revealed that dissonance can also be found within a single aspect. The present study suggests that neither content- nor learning-focused approaches to teaching are mutually exclusive and therefore may co-exist in individual teachers’ practices.  相似文献   
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In Pavlovian fear conditioning, context-mediated decrements in conditioned responding (e.g., the US preexposure effect) can counteract competition between cues trained together (e.g., overshadowing). Two experiments were conducted using rats in a conditioned lick suppression preparation to determine whether context-mediated competition also counteracts competition between cues trained separately (retroactive interference, or RI). In Experiment 1, a combination of degraded contingency and RI treatments produced less of a decrement in conditioned responding than did either of those treatments alone. Experiment 2 showed that RI treatment attenuates the normally deleterious effect of trial massing. The results suggest that empirical similarities are shared by interference between cues trained apart and competition between cues trained together.  相似文献   
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Abstract

Particular elements of a new initial certification program are described. The use of inquiry, collaboration, and reflection as teaching strategies resulted in new learning for preservice teachers, experienced teachers, and university faculty involved in the program. Each partner in the endeavor indicated an increased understanding of these strategies as effective tools for teaching and learning at every level of the profession. Furthermore, a vision of professional development for experienced professionals in the context of their work with novice teachers emerged. Guidelines for the design and implementation of such programs are proposed.  相似文献   
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Book reviews     

There are signs that teams are becoming more popular in ethnographic research. New technology and, in the UK, the Research Assessment Exercise have facilitated the establishment and continuance of teams. In this paper, the authors discuss their experiences in one particular research team in recent years. Securing adequate funding has been the essential structural prerequisite. The authors distinguish among project, federated, and whole teams, depending on function and level of analysis. They consider team structure, approach, business, and processes, and the relationship between individual and team. Teamwork has enabled a wider and deeper coverage of work, a broader comparative base, and multiple researcher triangulation. The team provides a forum for the discussion of ethical issues, an immediate supportive reference group. It has opened up horizons, and promoted individual change and development. It has aided analysis and writing, and promoted clearer and more robust arguments. The article concludes with some caveats.  相似文献   
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Herein is described the fabrication and use of a plastic multilayer 3-channel microfluidic fixture. Multilayer devices were produced by laser machining of plastic polymethylmethacrylate and polyethyleneterapthalate laminates by ablation. The fixture consisted of an array of nine individually addressable gold or gold/ITO working electrodes, and a resistive platinum heating element. Laser machining of both the fluidic pathways in the plastic laminates, and the stencil masks used for thermal evaporation to form electrode regions on the plastic laminates, enabled rapid and inexpensive implementation of design changes. Electrochemiluminescence reactions in the fixture were achieved and monitored through ITO electrodes. Electroaddressable aryl diazonium chemistry was employed to selectively pattern gold electrodes for electrochemical multianalyte DNA detection from double stranded DNA (dsDNA) samples. Electrochemical detection of dsDNA was achieved by melting of dsDNA molecules in solution with the integrated heater, allowing detection of DNA sequences specific to breast and colorectal cancers with a non-specific binding control. Following detection, the array surface could be renewed via high temperature (95 °C) stripping using the integrated heating element. This versatile and simple method for prototyping devices shows potential for further development of highly integrated, multi-functional bioanalytical devices.  相似文献   
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