Code‐switching in US ethnic literature: multiple perspectives presented through multiple languages

For the multilingual author, switching between two or more languages is not an arbitrary act, nor is it simply an attempt to mimic the speech of his or her community; code‐switching results from a conscious decision to create a desired effect and to promote the validity of the author's heritage language. This article looks at code‐switching in literary texts between Spanish and English, English and Chinese, and English and Jemez, a Native American language. Incorporating native and heritage languages along with English within a literary work, usually through code‐switching, creates a multiple perspective and enhances an author's ability to express his or her subject matter.     

Characteristics of a cognitive tool that helps students learn diagnostic problem solving

Three related studies replicated and extended previous work (J.A. Danielson et al. (2003), Educational Technology Research and Development, 51(3), 63–81) involving the Diagnostic Pathfinder (dP) (previously Problem List Generator [PLG]), a cognitive tool for learning diagnostic problem solving. In studies 1 and 2, groups of 126 and 113 veterinary students, respectively, used the dP to complete case-based homework; groups of 120 and 199, respectively, used an alternative method. Students in the dP groups scored significantly higher (p = .000 and .003, respectively) on final exams than those in control groups. In the third study, 552 veterinary students responding to a questionnaire indicated that the dP’s gating and data synthesis activities aided learning. The dP’s feedback and requirement of completeness appear to aid learning most.     

Lessons from the field: computer conferencing in higher education

Abstract

This article explores the tensions between the potential of computer conferencing as represented by theoretical models and its actual uses in higher education. An overview of the literature highlights major themes that run throughout this body of research, including claims that the medium: 1. provides a democratic environment due to the equal access afforded to participants; 2. enhances active learning and collaboration; 3. shifts the role of the teacher from classroom leader to facilitator of learning; and 4. encourages more thoughtful participation due to the text-based, asynchronous nature of interaction. Against this backdrop, case studies of courses taught through The New School for Social Research's on-line programme provide empirical data that challenge many of these claims. A discussion of teaching practices related to student participation and perceptions of computer conferencing is also offered to serve practitioners and teacher education efforts.     

Referral and placement recommendations of teachers toward gifted handicapped children

Three male students between 10 and 13 years of age, who possessed WISC‐R Full Scale IQ's of greater than 120 and documented problems in decoding skills were assessed with respect to cognitive processing abilities (Cognitive Assessment System) and found to have marked deficits in successive coding. A process based remedial program, combining global training on tasks requiring successive processing with tasks involving the application of successive processing to decoding in reading, was implemented within approximately six weeks (15 hours) of training. The remedial program included guided practice and verbal mediation to assist students to internalize and generalize the cognitive strategies. Improvements following remediation were manifested uniquely for each of the students. The differences appeared to be related to the entry skill levels and preferred strategies of each student, as well as to the dimensions of attention and motivation. Results offer an extension of cognitive theory regarding the functioning of students, and may also provide an assessment option allowing earlier identification and remediation for such students.     

Commercially available compression garments or electrical stimulation do not enhance recovery following a sprint competition in elite cross-country skiers

This study investigated whether commercially available compression garments (COMP) exerting a moderate level of pressure and/or neuromuscular electrical stimulation (NMES) accelerate recovery following a cross-country sprint skiing competition compared with a control group (CON) consisting of active recovery only. Twenty-one senior (12 males, 9 females) and 11 junior (6 males, 5 females) Swedish national team skiers performed an outdoor sprint skiing competition involving four sprints lasting ～3–4 min. Before the competition, skiers were matched by sex and skiing level (senior versus junior) and randomly assigned to COMP (n?=?11), NMES (n?=?11) or CON (n?=?10). Creatine kinase (CK), urea, countermovement jump (CMJ) height, and perceived muscle pain were measured before and 8, 20, 44 and 68?h after competition. Neither COMP nor NMES promoted the recovery of blood biomarkers, CMJ or perceived pain post-competition compared with CON (all P?>?.05). When grouping all 32 participants, urea and perceived muscle pain increased from baseline, peaking at 8?h (standardised mean difference (SMD), [95% confidence intervals (CIs)]): 2.8 [2.3, 3.2]) and 44?h (odds ratio [95% CI]: 3.3 [2.1, 5.1]) post-competition, respectively. Additionally, CMJ was lower than baseline 44 and 68?h post-competition in both males and females (P?相似文献