Switching between science and culture in transpecies transplantation

This article discusses xenotransplantation (XTP: the surgical role of nonhuman tissues, organs, and cells for human transplantation) and examines the way its scientific promoters have defended their technology against potentially damaging public representations. The authors explore the criteria used to legitimate the selection of the pig as the best species from which to "harvest" transplant tissues in the future. The authors' analysis shows that scientists and medical practitioners routinely switch between scientific and cultural repertoires. These repertoires enable such actors to exchange expert identities in scientific discourse for public identities in cultural discourse. These discourses map onto similarities and differences between animal donors and human hosts. Finally, the case is used to comment on a number of related approaches where the dynamics of medical and scientific authority are discussed.     

Revisiting emancipatory teacher research: a psychoanalytic perspective

This paper addresses the issue of how human beings construct themselves as subjects and the parameters within which this is achieved. We question models in which idealism shapes the trajectory of identity formation and consider how identity might be seen alternatively as a somewhat awkward amalgam of identifications with diverse discursive domains. The particular focus is on teachers conducting ‘emancipatory’ practitioner research and on how the researcher understands his/her interface with the situation he/she is researching. We survey a range of theoretical models as offered by some leading writers, with particular reference to Jacques Lacan, and consider each in relation to how the teacher researcher might be understood. We provide as an example an account of one teacher researcher examining issues of ethnicity and gender in her secondary school French classes.     

Models of influence on mathematics instructional coaches

In our study, we examine the factors influencing the implementation of a mathematics coaching initiative at four high schools including the assets an instructional coach brings to the position and the challenges unique to each school. In our case study we include data collected in individual interviews with instructional coaches, focus groups with Algebra I teams, and coaching logs. Four models of coaching behavior emerged from the data collected in the study: coach as facilitator, coach as mediator, coach as dictator, and coach as victim. No role was associated exclusively with any particular instructional coach. However, which role the coach assumed hinged on one or more factors: the coach’s leadership style, the context in which the coach served, and the dynamics of the situation.     

Cultural sensitivity: How important is it for effective home visits?

The implementation of home visits as a technique for involving parents has recently resurfaced. This educational trend has received additional emphasis as the nation attempts to meet the national education goals — particularly the first goal, which states, By the year 2000, all children will enter school ready to learn.Sally A. LaPoint is an Assistant Professor of Early Childhood Education at the University of South Carolina at Beaufort. She also administers the At Risk Early Childhood Family Initiative, located at the historic Penn Center on St. Helena Island, South Carolina. Gloria S. Boutte is an Assistant Professor, Kevin J. Swick is a Professor, and Mac H. Brown is an Associate Professor, Early Childhood Education, at the University of South Carolina, Columbia, S.C.     

Preservice Teachers’ Research Experiences in Scientists’ Laboratories

To promote the use of scientific inquiry methods in K-12 classrooms, departments of teacher education must provide science teachers with experiences using such methods. To comply with state and national mandates, an apprenticeship course was designed to afford preservice secondary science teachers opportunities to engage in an authentic, extended, open-ended inquiry. This study describes three teachers’ apprenticeship experiences with a research scientist. Our model included placing preservice teachers with scientists in expert/novice roles where each teacher would be actively engaged in constructing knowledge. From triangulating interview, laboratory notebook, and reflective summary data resources, we identified common themes from re-occurring statements. Findings indicated that participants acquired scientific skills and content knowledge; however, they expressed limited use of these in their classrooms.     

In the dark II: spatial choice when access to extrinsic spatial cues is eliminated

Rats were tested in a specially constructed radial-arm maze that eliminated access to extramaze visual cues and allowed any effects of intramaze cues to be controlled. Despite this, choice accuracy was controlled by the spatial location of previously visited arms. Part of this control was attributed to vestibular or kinesthetic cues. This conclusion was corroborated by the finding that when explicit visual cues were moved from their standard (trained) spatial locations to novel locations, control of spatial choices was completely disrupted. The latter finding indicates that cues intrinsic to the rat (kinesthetic or vestibular information) and cues extrinsic to the rat (visual stimuli) operate in an integrated fashion.     

Intergenerational activities

Early Childhood Education Journal - How can we prepare the young children of today for the future, when 20 percent of all Americans will be old? Education about the process of human aging can help...