University rankings called to account – library voices in the conversation

The past few years have seen increasingly raised voices against the impact of University Rankings, such as QS, THE World University Rankings, ARWU and USNews. Research administrators have been particularly vocal about the influence of ranking systems on university behaviors and called for more responsible metrics and profiling tools that demonstrate distinctiveness. This paper seeks to understand the role of the library in these conversations, particularly in light of recent strengthening of bibliometrics and scholarly communication initiatives that deal with source data for publication and citation elements of the rankings, and increased relationship-building with Research Offices and Institutional Policy and Planning Offices. Librarians and library leaders seeking a round up of recent developments in the rethinking of University Rankings will find this session useful for commentary and insights to share with their own institutions

Teachers\u27 Perceptions of How the Teacher Evaluation Process Impacts Classroom Instruction in Three High Poverty School Districts

Abstract Improving the educational system for students and teachers is of the upmost importance. Educational leaders have realized that the best way to improve student success is by improving teachers’ instructional practices and measuring their effectiveness (Mathers, Oliva, & Laine, 2008). Because of this awareness, educators have realized the importance of connecting student achievement with instructional practices and instructional practices with teacher effectiveness. Evaluation tools are used to measure how effective teachers are in their classrooms. Evaluations are crucial in assisting our teachers in their professional growth. When evaluations are utilized as supportive tools, they help teachers and administrators identify strengths and weakness, but more importantly they prescribe strategies to assist teachers in improvement. The purpose of this qualitative phenomenological study was to explore teachers’ perceptions of the evaluation systems and understand if and how they influence classroom instructional practices. The participants consisted of twelve teachers in the state of Louisiana. Data was extracted through semi-structured interviews and coded for common themes. Through these themes, the researcher formed a narrative format to voice the participants’ experiences. The study concludes that teacher evaluation has minimal influence on instructional practice. Data suggested issues with the design of evaluation systems, the implementation of such systems, and the basic challenge of using a single system to evaluate all teachers regardless of personal or workplace characteristics

Teachers\u27 Perceptions of How the Teacher Evaluation Process Impacts Classroom Instruction in Three High Poverty School Districts

Abstract Improving the educational system for students and teachers is of the upmost importance. Educational leaders have realized that the best way to improve student success is by improving teachers’ instructional practices and measuring their effectiveness (Mathers, Oliva, & Laine, 2008). Because of this awareness, educators have realized the importance of connecting student achievement with instructional practices and instructional practices with teacher effectiveness. Evaluation tools are used to measure how effective teachers are in their classrooms. Evaluations are crucial in assisting our teachers in their professional growth. When evaluations are utilized as supportive tools, they help teachers and administrators identify strengths and weakness, but more importantly they prescribe strategies to assist teachers in improvement. The purpose of this qualitative phenomenological study was to explore teachers’ perceptions of the evaluation systems and understand if and how they influence classroom instructional practices. The participants consisted of twelve teachers in the state of Louisiana. Data was extracted through semi-structured interviews and coded for common themes. Through these themes, the researcher formed a narrative format to voice the participants’ experiences. The study concludes that teacher evaluation has minimal influence on instructional practice. Data suggested issues with the design of evaluation systems, the implementation of such systems, and the basic challenge of using a single system to evaluate all teachers regardless of personal or workplace characteristics

Medical Student Dissection of Cadavers Improves Performance on Practical Exams but not on the NBME Anatomy Subject Exam

We have examined whether cadaver dissection by first year medical students (MIs) affected their performance in two test measures: the NBME Gross Anatomy and Embryology Subject Exam (dissection-relevant questions only), and practical exams given at the end of each major section within the course. The dissections for the entire course were divided into 18 regional dissection units and each student was assigned to dissect one third of the regional units; the other two-thirds of the material was learned from the partner-prosected cadavers. Performance for each student on the exams was then assessed as a function of the regions those students actually dissected. While the results indicated a small performance advantage for MIs answering questions on material they had dissected on the NBME Subject Exam questions relevant to dissection (78-88% of total exam), the results were not statistically significant. However, a similar, small performance advantage on the course practical exams was highly significant

Discrete element models of soil-geogrid interaction

Geogrids are the geosynthetics of choice for soil reinforcement applications. To evaluate the efficiency of geogrid reinforcement, several methods are used including field tests, laboratory tests and numerical modeling. Field studies consume long period of time and conducting these investigations may become highly expensive because of the need for real-size structures. Laboratory studies present also significant difficulties: large-size testing machines are required to accommodate realistic geogrid designs. The discrete element method (DEM) may be used as a complementary tool to extend physical testing databases at lower cost. Discrete element models do not require complex constitutive formulations and may be fed with particle scale data (size, strength, shape) thus reducing the number offree calibration parameters. Discrete element models also are well suited to problems in which large displacements are present, such as geogrid pullout. This paper reviews the different approaches followed to model soil-geogrid interaction in DEM and presents preliminary results from pull-out conditions.Peer ReviewedPostprint (author's final draft

Delayed reception of live blowfly (Calliphora vicina and Chrysomya rufifacies) larval samples: implications for minimum postmortem interval estimates.

Forensic entomology evidence collected by police and mortuary staff may be delayed in getting to the entomologist. Live samples may continue developing and alter minimum postmortem interval (PMImin) estimates. This study investigated development of simulated evidential samples of Calliphora vicina Robineau-Desvoidy and Chrysomya rufifacies (Macquart) (Diptera: Calliphoridae) maggots. Maggots of each species were studied in three developmental classes: "small" (late second/early third instar), "mid" (mid third instar) and "large" (late third instar). Seven replicates of 11 maggots in each class were assigned without food to four treatments: (1) 24 h at 20 °C; (2) 24 h at 4 °C; (3) 48 h at 20 °C and (4) 48 h at 4 °C. There was a significant difference in absolute length change across treatments, reflecting size for C. vicina, and interaction between size, time and temperature for Ch. rufifacies. Calliphora vicina maggots showed minimal mortality, and most second instar larvae moulted by the experiment's end. Chrysomya rufifacies showed heavy mortality and minimal moulting from the second to third instar. Only "large" Ch. rufifacies maggots kept at room temperature for 48 h pupariated. Since these results confirm that development can continue in live unfed maggot samples after their collection, it is not advisable to delay their preservation

Psychological, psychophysical, and ergogenic effects of music in swimming

OBJECTIVES: Existing work using dry land exercise-related activities has shown that the careful application of music can lead to a range of benefits that include enhanced affect, lower perceived exertion, greater energy efficiency, and faster time trial performances. The purpose of this study was to assess the psychological, psychophysical, and ergogenic effects of asynchronous music in swimming using a mixed-methods approach. DESIGN: A mixed-model design was employed wherein there was a within-subjects factor (two experimental conditions and a control) and a between-subjects factor (gender). The experimental component of the study was supplemented by qualitative data that were analysed using inductive content analysis. METHODS: Twenty six participants (Mage = 20.0 years, age range: 18–23 years) underwent a period of habituation with Speedo Aquabeat MP3 players prior to the experimental phase. They were then administered two experimental trials (motivational and oudeterous music at 130 bpm) and a no-music control, during which they engaged in a 200-m freestyle swimming time trial. RESULTS: Participants swam significantly faster when exposed to either music condition relative to control (p = .022, ηp2=.18). Moreover, the music conditions were associated with higher state motivation (p = .016, ηp2=.15) and more dissociative thoughts (p = .014, ηp2=.16). CONCLUSIONS: Findings supported the hypothesis that the use of asynchronous music during a high-intensity task can have an ergogenic effect; this was in the order of 2% when averaged out across the two experimental conditions. The use of music, regardless of its motivational qualities, resulted in higher self-reported motivation as well as more dissociative thoughts

Elm Farm Research Centre Bulletin 79 July 2005

Regular newletter from Elm Farm Research Centre (EFRC)covering research, technical and policy articles, views and comment

Lifestyle factors and ovarian cancer outcomes

Purpose: Few studies have reported on the lifestyle characteristics of ovarian cancer survivors. The objectives of this study were to characterize the associations between physical activity (PA) and body size (BS) with health-related quality of life (HRQOL) and ovarian cancer recurrence in a sample of regional and distal stage ovarian cancer survivors. Methods: Epithelial ovarian cancer survivors in their first clinical remission, with no evidence of recurrent disease were identified from The University of Texas MD Anderson Cancer Center tumor registry. A total of 51 survivors consented to participate in a battery of self-reported questionnaires. Trained staff collected data on anthropometric and recurrence data were collected from the tumor registry. Generalized linear models were used to assess the relationship between PA, BS, and HRQOL. Cox proportional hazard models were used to assess the associations between PA, BS, and recurrence-free survival. Results: Most (59%) women were overweight or obese (BMI \u3c 25 kg/m2) , 49% met current guidelines for PA (150 minutes of moderate to vigorous PA/week), and 29% displayed characteristics of abdominal obesity (\u3e88 centimeters). Women who were not obese reported significantly higher (better) overall HRQOL (point difference = 10.8, P \u3c 0.05) and mental health (point difference = 12.4, P \u3c 0.05) scores than women who were obese. Elevated waist circumference and physical activity were not significantly associated with HRQOL outcomes and we did not find any associations between lifestyle behaviors and recurrence free survival (all P \u3e 0.05). Conclusions: Ovarian cancer survivors with characteristics of overall and abdominal obesity may be at risk for deficits in HRQOL and could benefit from interventions designed to reduce weight. More research is needed to determine whether meeting guidelines for physical activity is associated with improvements in health outcomes this population