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151.
This article uses four academics’ gendered and cultural responses to life in a university in Aotearoa New Zealand under the new managerialist regime. Performance Based Research Funding (PBRF) requires academics to submit evidence‐based portfolios every six years to categorise and rank them, with government funding assigned accordingly. When the authors met as members of a writing group, the talk often turned to negative aspects of PBRF. Using co‐operative enquiry, the four co‐researchers began writing observations of their individual experiences, differences and identities to help them reflect and understand the impact of the changed environment. The four phases of writing as enquiry were: deciding on a focus, writing observations, engaging with the written accounts and interpreting the outcome through metaphor. The article process facilitated a positive outcome by helping the authors regain a sense of collegiality and mutual support, along with a sense of preserving their academic identity by writing and publishing as a group.  相似文献   
152.
As more faculty members utilize student-centered methods, we should also expect to see an increase in graduate teaching assistants (TAs) who are asked to co-teach these classes. However, little is written about the challenges TAs face and the adjustments they make when teaching student-centered courses. This study examined a student-centered course taught by the hevruta method, a dyadic approach that emphasizes text-based student discussions. Although students reported significant learning gains, both they and TAs had to negotiate new instructional roles. Based on student and TA feedback, strategies are presented to facilitate effective student learning in a student-centered course co-taught by TAs.  相似文献   
153.
The translational-symmetry hypothesis of abstract-concept learning was tested in a same/different (S/D) task with pairs of pictures. The translational-symmetry hypothesis proposes that subjects discriminate same trials by the simultaneous repetition of features in the two pictures (and different trials by the lack of feature repetition). Pigeons that had learned a simultaneous S/D task were tested with delays between the two pictures to remove emergent perceptual cues. In Experiment 1, we tested delays of 0 and 1 sec. The results did not show the accuracy decrease expected according to the translational-symmetry hypothesis. In Experiment 2, we expanded the delays to 2 and 6 sec. Even at the longest delay, there was no evidence of the precipitous performance decline or default strategy that would be predicted by translational symmetry. The results provide evidence against translational symmetry (or other perceptually emergent features) that might control these pigeons’ performance in our two-item S/D task.  相似文献   
154.
BACKGROUND: In 2002, Georgia had the United States' eighth highest number of persons living with AIDS. Human immunodeficiency virus (HIV) transmission as a result of sexual abuse is uncommon but definitely occurs. In certain circumstances of sexual abuse, antiretroviral post-exposure prophylaxis (ARV-PEP) has been suggested as a means to decrease the risk of HIV infection. Our objective was to assess the utilization of ARV-PEP in patients being evaluated for sexual abuse at a pediatric emergency department in a city with high HIV prevalence. METHODS: A retrospective survey of the characteristics of sexual abuse victims was conducted using information abstracted from sexual abuse report forms of minors examined in 2002 at an inner-city Atlanta children's hospital. RESULTS: Of 227 victims, aged 9 months to 18 years, most were Black, inner-city residents; 190 (84%) patients were female. Only 87 of 227 (38.3%) were seen within 72 h of the abuse, the time frame for offering ARV-PEP. Twenty-three of the 87 had anogenital trauma or bleeding. Five (5.7%), were provided ARV-PEP, whereas 60 (69%) received antibiotic prophylaxis for non-HIV diseases. Those assaulted by strangers were greater than 10 times more likely to be provided ARV-PEP than others (p=.02). Assailants of the 82 victims who did not receive ARV-PEP included 22 strangers and 60 "acquaintances" of unknown serostatus. CONCLUSIONS: For a high HIV prevalence area, the proportion of sexual abuse victims prescribed ARV-PEP was small in relation to those at risk of HIV sexual exposure. Clinicians should be provided guidance on interpretation of community HIV and sexual abuse victim data to assess the appropriateness of ARV-PEP.  相似文献   
155.
The anteromedial reach test (ART) is a new outcome measure for assessing dynamic knee stability in anterior cruciate ligament-injured patients. The effect of learning and leg length on distance reached in the ART was examined. Thirty-two healthy volunteers performed 15 trials of the ART on each leg. There was a moderate correlation (r = .44-.50) between reach distance and leg length, therefore reach distances were normalized for leg length. Normalized reach distance increased significantly over the 15 trials (p < .01), reaching a plateau after 8 trials, identified by a moving average graph. It is recommended that participants be afforded eight practice trials and that reach distances be normalized by expressing them as a percentage of leg length.  相似文献   
156.
A common belief in the golf community is that a lighter shaft allows the golfer to swing the club faster. From a mechanical point of view, reducing the mass of the shaft would result in a faster swing. However, a golfer is not a purely mechanical system, and so it is simplistic to assume that identical loads will be applied when swinging different clubs. Therefore, the purpose of this study was to test the hypothesis that golfers behave similar to a mechanical model when swinging clubs of varying mass. A torque driven model estimated the effects caused by the addition of 22?g to the shaft. Twelve golfers hit balls with a standard driver as well as a driver fitted with the same 22?g increase in mass. Club kinematics were collected with a high-speed motion capture system. The model predicted a 1.7?% lower club head speed for the club with additional mass. One subject showed a similar reduction (1.4?%), but one subject showed an increase in club head speed by 3.0?%. Ten subjects did not show any significant differences. These results suggest that golfers do not respond to changes in club mass in a mechanically predictable way.  相似文献   
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