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Selected AbstractsImplementing life cycle assessment in product developmentENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY, Issue 4 2003Gurbakhash Singh Bhander The overall aim of this paper is to provide an understanding of the environmental issues involved in the early stages of product development, and the capacity of Life Cycle Assessment (LCA) techniques to address these issues. The paper aims to outline the problems for the designer in evaluating the environmental benignity of a product from the outset, and to provide a framework for decision support based on the performance evaluation at different stages of the design process. The barriers that prevent product developers from using LCA are presented, as well as opportunities for introducing environmental criteria in the design process by meeting the designer's information requirements at the different life cycle stages. This can lead to an in-depth understanding of the attitudes of product developers towards the subject area, and an understanding of possible future directions for product development. This paper introduces an Environmentally Conscious Design method, and presents trade-offs between design degrees of freedom and environmental solutions. Life cycle design frameworks and strategies are also addressed. The paper collects experiences and ideas around the state-of-the-art in eco-design, from literature and personal experience, and provides eco-design life cycle assessment strategies. The end result of this presentation is to define the requirements for performance measurement techniques, and the environment needed to support life cycle evaluation throughout the evaluation of early stages of a product system. [source] Internet-based information-seeking behaviour amongst doctors and nurses: a short review of the literatureHEALTH INFORMATION & LIBRARIES JOURNAL, Issue 1 2010Paula Younger Background:, Reviews of how doctors and nurses search for online information are relatively rare, particularly where research examines how they decide whether to use Internet-based resources. Original research into their online searching behaviour is also rare, particularly in real world clinical settings. as is original research into their online searching behaviour. This review collates some of the existing evidence, from 1995 to 2009. Objectives:, To establish whether there are any significant differences in the ways and reasons why doctors and nurses seek out online information; to establish how nurses and doctors locate information online; to establish whether any conclusions can be drawn from the existing evidence that might assist health and medical libraries in supporting users. Methods:, An initial scoping literature search was carried out on PubMed and CINAHL to identify existing reviews of the subject area and relevant original research between 1995 and 2009. Following refinement, further searches were carried out on Embase (Ovid), LISA and LISTA. Following the initial scoping search, two journals were identified as particularly relevant for further table of contents searching. Articles were exclused where the main focus was on patients searching for information or where the focus was the evaluation of online-based educational software or tutorials. Articles were included if they were review or meta-analysis articles, where they reported original research, and where the primary focus of the online search was for participants' ongoing Continuing Professional Development (CPD). The relevant articles are outlined, with details of numbers of participants, response rates, and the user groups. Results:, There appear to be no significant differences between the reasons why doctors and nurses seek online Internet-based evidence, or the ways in which they locate that evidence. Reasons for searching for information online are broadly the same: primarily patient care and CPD (Continuing Professional Development). The perceived barriers to accessing online information are the same in both groups. There is a lack of awareness of the library as a potential online information enabler. Conclusions:, Libraries need to examine their policy and practice to ensure that they facilitate access to online evidence-based information, particularly where users are geographically remote or based in the community rather than in a hospital setting. Librarians also need to take into account the fact that medical professionals on duty may not be able to take advantage of the academic model of online information research. Further research is recommended into the difference between the idealised academic model of searching and real world practicalities; and how other user groups search, for example patients. [source] Reflections on information systems practice, education and research: 10 years of the Information Systems JournalINFORMATION SYSTEMS JOURNAL, Issue 1 2001David Avison Abstract. This paper celebrates the 10-year anniversary of the Information Systems Journal (ISJ) and the Editors reflect on the papers that have been published over that period and the changes that have occurred in the discipline of information systems. In the opening paper of ISJ, we suggested that the ,launch of a new journal in information systems prompts thought and debate concerning the state of the subject area and some contemplation of its past and future'. We discussed three areas of this ,not-yet-established discipline': practice, education and research. In this follow-up paper, we forgo our convention of ISJ editors not publishing in the Journal. We examine the issues raised in the first paper and consider what has happened in the intervening years as charted in the ISJ. The overview is necessarily selective, probably Anglocentric (with, perhaps, a slight Francophile tinge), sometimes downright opinionated, as well as over-estimating, perhaps, the contribution of one particular IS journal. [source] Repetitive control of synchronized operations for process applicationsINTERNATIONAL JOURNAL OF ADAPTIVE CONTROL AND SIGNAL PROCESSING, Issue 4 2007James D. Ratcliffe Abstract Repetitive control (RC) algorithms for a plant, which contain pairs of complex conjugate poles at low frequency, resulting in a resonant system, is the subject area of this paper where the experimental results given are for a gantry robot and conveyor system in which the gantry is required to transfer payloads to a constant velocity conveyor by performing a repeating ,pick and place' operation. Initially, the gantry robot is controlled by means of a PID feedback controller in parallel with a proportional (P-type) repetitive feed-forward loop, while the conveyor operates under proportional feedback control. It is found that the RC system is unable to achieve long-term performance. The performance degrades within a relatively small number of repetitions due to the build up of resonant frequencies in the learning loop. To prevent this, a batch aliasing technique, originally developed for iterative learning control, is modified to work in the RC framework, and is implemented in real-time. The superior performance potential of the aliasing system is demonstrated experimentally. In the second part of this paper, multi-machine systems, are considered where the critical new factor is the relative error between the conveyor and the robot. Here a second supervisory learning loop is proposed for use to shift the reference trajectory of one machine so that the relative placement error is also reduced. Again, supporting experimental results are given. Copyright © 2006 John Wiley & Sons, Ltd. [source] Catching fairies and the public representation of biogeographyJOURNAL OF BIOGEOGRAPHY, Issue 3 2008Richard J. Ladle Abstract Biogeography is a vibrant academic discipline that plays an important role in framing and directing debates on some of the most important environmental issues of our time, such as the impacts of climate change on biodiversity, biotic homogenization and the effectiveness of global conservation policy. Despite this, biogeography suffers from a low public profile and may consequently be poorly understood by the public. Here I review the representation of the term biogeography, and a selection of biogeographers in the public sphere (newspapers, websites, blogs) and the academic sphere (journals and reports) to understand more fully the public perception of the discipline. As anticipated, the survey suggests that the term ,biogeography' has little public currency, and that the public still largely associate the subject area with either eminent Victorians such as A.R. Wallace or modern greats such as E.O. Wilson. I conclude by discussing the potential consequences of the virtual absence of biogeography from public discourse for education and professional biogeographers. [source] Analysis of longitudinal data with drop-out: objectives, assumptions and a proposalJOURNAL OF THE ROYAL STATISTICAL SOCIETY: SERIES C (APPLIED STATISTICS), Issue 5 2007Peter Diggle Summary. The problem of analysing longitudinal data that are complicated by possibly informative drop-out has received considerable attention in the statistical literature. Most researchers have concentrated on either methodology or application, but we begin this paper by arguing that more attention could be given to study objectives and to the relevant targets for inference. Next we summarize a variety of approaches that have been suggested for dealing with drop-out. A long-standing concern in this subject area is that all methods require untestable assumptions. We discuss circumstances in which we are willing to make such assumptions and we propose a new and computationally efficient modelling and analysis procedure for these situations. We assume a dynamic linear model for the expected increments of a constructed variable, under which subject-specific random effects follow a martingale process in the absence of drop-out. Informal diagnostic procedures to assess the tenability of the assumption are proposed. The paper is completed by simulations and a comparison of our method and several alternatives in the analysis of data from a trial into the treatment of schizophrenia, in which approximately 50% of recruited subjects dropped out before the final scheduled measurement time. [source] Lung function tests in neonates and infants with chronic lung disease: Lung and chest-wall mechanicsPEDIATRIC PULMONOLOGY, Issue 4 2006Monika Gappa MD This is the fifth paper in a review series that summarizes available data and critically discusses the potential role of lung function testing in infants and young children with acute neonatal respiratory disorders and chronic lung disease of infancy (CLDI). This review focuses on respiratory mechanics, including chest-wall and tissue mechanics, obtained in the intensive care setting and in infants during unassisted breathing. Following orientation of the reader to the subject area, we focused comments on areas of enquiry proposed in the introductory paper to this series. The quality of the published literature is reviewed critically with respect to relevant methods, equipment and study design, limitations and strengths of different techniques, and availability and appropriateness of reference data. Recommendations to guide future investigations in this field are provided. Numerous different methods have been used to assess respiratory mechanics with the aims of describing pulmonary status in preterm infants and assessing the effect of therapeutic interventions such as surfactant treatment, antenatal or postnatal steroids, or bronchodilator treatment. Interpretation of many of these studies is limited because lung volume was not measured simultaneously. In addition, populations are not comparable, and the number of infants studied has generally been small. Nevertheless, results appear to support the pathophysiological concept that immaturity of the lung leads to impaired lung function, which may improve with growth and development, irrespective of the diagnosis of chronic lung disease. To fully understand the impact of immaturity on the developing lung, it is unlikely that a single parameter such as respiratory compliance or resistance will accurately describe underlying changes. Assessment of respiratory mechanics will have to be supplemented by assessment of lung volume and airway function. New methods such as the low-frequency forced oscillation technique, which differentiate the tissue and airway components of respiratory mechanics, are likely to require further development before they can be of clinical significance. Pediatr Pulmonol. © 2006 Wiley-Liss, Inc. [source] Lung Function Tests in Neonates and Infants with Chronic Lung Disease: Forced Expiratory ManeuversPEDIATRIC PULMONOLOGY, Issue 3 2006Sooky Lum PhD Abstract This fourth paper in a review series on the role of lung function testing in infants and young children with acute neonatal disorders and chronic lung disease of infancy (CLDI) addresses measurements of forced expiration using rapid thoraco-abdominal compression (RTC) techniques and the forced deflation technique. Following orientation of the reader to the subject area, we focus our comments on the areas of inquiry proposed in the introductory paper to this series. The quality of the published literature is reviewed critically, and recommendations are provided to guide future investigation in this field. All studies on infants and young children with CLDI using forced expiratory or deflation maneuvers demonstrated that forced flows at low lung volume remain persistently low through the first 3 years of life. Measurement of maximal flow at functional residual capacity (V,maxFRC) is the most commonly used method for assessing airway function in infants, but is highly dependent on lung volume and airway tone. Recent studies suggested that the raised volume RTC technique, which assesses lung function over an extended volume range as in older children, may be a more sensitive means of discriminating changes in airway function in infants with respiratory disease. The forced deflation technique allows investigation of pulmonary function during the early development of CLDI in intubated subjects, but its invasive nature precludes its use in the routine setting. For all techniques, there is an urgent need to establish suitable reference data and evaluate within- and between-occasion repeatability, prior to establishing the clinical usefulness of these techniques in assessing baseline airway function and/or response to interventions in subjects with CLDI. Pediatr Pulmonol. © 2005 Wiley-Liss, Inc. [source] Lung Function Tests in Neonates and Infants with Chronic Lung Disease of Infancy: Functional Residual CapacityPEDIATRIC PULMONOLOGY, Issue 1 2006Georg Hülskamp MD Abstract This is the second paper in a review series that will summarize available data and discuss the potential role of lung function testing in infants and young children with acute neonatal respiratory disorders and chronic lung disease of infancy. The current paper addresses the expansive subject of measurements of lung volume using plethysmography and gas dilution/washout techniques. Following orientation of the reader to the subject area, we focus our comments on areas of inquiry proposed in the introductory paper to this series. The quality of the published literature is reviewed critically, and recommendations are provided to guide future investigation in this field. Measurements of lung volume are important both for assessing growth and development of lungs in health and disease, and for interpreting volume-dependent lung function parameters such as respiratory compliance, resistance, forced expiratory flows, and indices of gas-mixing efficiency. Acute neonatal lung disease is characterized by severely reduced functional residual capacity (FRC), with treatments aimed at securing optimal lung recruitment. While FRC may remain reduced in established chronic lung disease of infancy, more commonly it becomes normalized or even elevated due to hyperinflation, with or without gas-trapping, secondary to airway obstruction. Ideally, accurate and reliable bedside measurements of FRC would be feasible from birth, throughout all phases of postnatal care (including assisted ventilation), and during subsequent long-term follow-up. Although lung volume measurements in extremely preterm infants were described in a research environment, resolution of several issues is required before such investigations can be translated into routine clinical monitoring. Pediatr Pulmonol. © 2005 Wiley-Liss, Inc. [source] A New Approach to the Deposition of Elemental Boron and Boron-Based Coatings by Pulsed Magnetron Sputtering of Loosely Packed Boron Powder TargetsPLASMA PROCESSES AND POLYMERS, Issue S1 2007Martynas Audronis Abstract Large numbers of potential application areas for elemental boron and boron-based thin film materials make this subject area a focus of significant scientific and industrial interest. Applications include thermoelectric energy conversion devices, biomedical implants, metalworking tools and automotive components. Boron is however also recognised widely to be a difficult-to-deposit material. Therefore, a new technique to deposit boron (and other boron-based materials) by pulsed magnetron sputtering of loosely packed powder targets has been proposed. Among the benefits of this approach are: improved stability of the deposition process, increased speed and flexibility of target preparation, enhanced time- and cost-effectiveness and the ability to control readily the target and hence the chemical composition of the coating. [source] Hormonal Changes in Menopause and Implications on Sexual HealthTHE JOURNAL OF SEXUAL MEDICINE, Issue 2007Anneliese Schwenkhagen MD ABSTRACT Introduction., The menopause is characterized by an array of changes to the female body caused by modulations which occur in the production of estrogens and androgens. The ovaries are important sites of testosterone production in the peri- and postmenopausal women, but the contribution of testosterone pro-hormones from the adrenal glands falls precipitously to the extent where the ovaries cannot correct the deficit. This results in a net decline in circulating testosterone levels. Aims., This paper gives an overview of this interesting subject area. Researchers have cogitated on the relationship between the physical effects of the menopause and the observed declines in testosterone levels, but it is now much clearer that falling testosterone levels cannot explain all of these changes. Main Outcome Measures., The cessation of follicular functioning results in a steep decline in the production of estrogens. This modulation is responsible for the physical manifestations of the menopause,hot flushes, sleep disturbances, mood changes, bleeding problems, local urogenital problems, vaginal changes, etc. Methods., A review of the pertinent literature was conducted to investigate hormonal changes around the menopause. A précis of the salient information is presented here. Results., Although the most obvious and well-known effects of the menopause are due to the decline of estrogen levels, the effects of falling testosterone levels are subtle, but by no means less significant. Reductions in sexual motivation, sexual arousal, vaginal lubrication, etc. are all associated with plummeting androgen levels. Conclusions., Today, several options exist for the treatment of the endocrinological changes associated with the menopause. Estrogen deficiency can be corrected with hormone replacement therapy and topical preparations for the genitalia. A new transdermal system for the administration of testosterone shows a great deal of potential for the treatment of androgen deficiency. Schwenkhagen A. Hormonal changes in menopause and implications on sexual health. J Sex Med 2007;4(suppl 3):220,226. [source] Trope Control: The Costs and Benefits of Metaphor Unreliability in the Description of Empirical Phenomena,BRITISH JOURNAL OF MANAGEMENT, Issue 2 2004John Ramsay The process of communicating and interpreting the meaning of metaphors in business writing is deeply unreliable. This stems from the structure of metaphors in which some of the characteristics of a source domain are transferred to a target domain. The precise selection of characteristics is made by the reader rather than the author of the metaphor, thus creating uncertainty of meaning. Although there are some benefits stemming from the inherent ambiguity of metaphor, the unreliability of the trope not only makes it impossible to choose between competing metaphors, but may distort our view of reality and thus lead to poor management decision-making. Moreover, the unreliability of the interpretation process is so pronounced that some authors have attempted to reject the use of metaphor entirely. However, this paper argues that although it is impossible to avoid employing metaphor, contrary to the conventional wisdom in this subject area, it is possible to improve meaning reliability. Drawing on linguistic theory to explain the recommendations, and illustrative examples from business literature and practice, the papers offers several recommendations for so doing that may be applied throughout the Business and Management field. [source] Education and Social Change: The Case of Israel's State CurriculumCURRICULUM INQUIRY, Issue 4 2007AMOS HOFMAN ABSTRACT The aim of this article is to explore, through the case of the official Israeli state curriculum, how the educational system is affected by social changes and how it responds to them, and to suggest curricular directions that go along with the new social reality that has emerged in Israel during the past decade. We offer a conceptual-theoretical analysis based on the examination of 10 subject areas taught at Israeli schools by leading experts who investigated the curriculum documents of the Ministry of Education in their disciplines. We identify three stages of curriculum development in Israel since its establishment: promotion of hegemonic national goals, emphasis on academic structure of knowledge, and in recent decades, multiple conflicting goals. Changes in the Israeli state curricula indeed reflect a response to broader social changes, yet these changes are partial, irresolute, and scattered. There is a need for a transcultural approach, promoting a core curriculum common to all groups in Israel, beyond which each group may express its uniqueness. [source] The Role of Interest in Fostering Sixth Grade Students' Identities As Competent LearnersCURRICULUM INQUIRY, Issue 1 2000Jean C. Mcphail The combined works of John Dewey and Jerome Bruner provide a framework spanning a century of educational thought which can inform curriculum decisions concerning students' educational development, especially for middle school students whose waning of motivation toward school has been well documented by researchers and has long concerned parents and teachers. This framework, combined with recent contributions of motivation and interest researchers, can create broad understandings of how to collaboratively construct effective educational contexts. As early as 1913, Dewey specifically looked at the pivotal role of students' genuine interests in Interest and Effort in Education. Our current research focus on how students' interest can inform curricular contexts marks the recent shift showing an increased use of interest in education research since 1990. In this article, we discuss our study of a team-taught double classroom of sixth grade students whose interests were determined through a series of brainstorming sessions, and individual and focus group interviews. Students' interests fell into six categories centering around subject areas such as Drama, Science, and Animal Studies. Learning contexts were constructed around four of these subject areas. Students participated in their first or second choice of subject area group. We found significantly higher scores on measures of Affect and Activation if students participated in their first choice group. We found intra-group unities of preferred and dispreferred ways of learning which distinguished each group from the class as a whole. Finally, our findings indicated that students reliably described their genuine interests over time. Students' interests were found to be effective tools for informing curriculum decisions in the creation of sixth grade learning contexts. [source] Using innovative group-work activities to enhance the problem-based learning experience for dental studentsEUROPEAN JOURNAL OF DENTAL EDUCATION, Issue 4 2009R. Grady Abstract Problem-based learning (PBL) in medical and dental curricula is now well established, as such courses are seen to equip students with valuable transferable skills (e.g. problem-solving or team-working abilities), in addition to knowledge acquisition. However, it is often assumed that students improve in such skills without actually providing direct opportunity for practice, and without giving students feedback on their performance. ,The Manchester Dental Programme' (TMDP) was developed at The University of Manchester, UK as a 5-year, integrated enquiry-led curriculum. The existing PBL course was redesigned to include a unique, additional PBL session (,Session 4') that incorporated an activity for the group to complete, based on the subject material covered during student self-study. A summative mark was awarded for each activity that reflected the teamwork, organisational and overall capabilities of the groups. This paper describes the different types of activities developed for the Session 4 and presents an analysis of the perceptions of the students and staff involved. The student response to the Session 4 activities, obtained via questionnaires, was extremely positive, with the majority finding them fun, yet challenging, and ,worthwhile'. The activities were perceived to enhance subject understanding; develop students' problem-solving skills; allow the application of knowledge to new situations, and helped to identify gaps in knowledge to direct further study. Staff found the activities innovative and exciting learning tools for the students. The Session 4 activities described here are useful educational resources that could be adapted for other PBL courses in a wide variety of subject areas. [source] Simulation of patient encounters using a virtual patient in periodontology instruction of dental students: design, usability, and learning effect in history-taking skillsEUROPEAN JOURNAL OF DENTAL EDUCATION, Issue 3 2004M. Schittek Janda Simulations are important educational tools in the development of health care competence. This study describes a virtual learning environment (VLE) for diagnosis and treatment planning in oral health care. The VLE is a web-based, database application where the learner uses free text communication on the screen to interact with patient data. The VLE contains forms for history taking, clinical images, clinical data and X-rays. After reviewing the patient information, the student proposes therapy and makes prognostic evaluations of the case in free text. A usability test of the application was performed with seven dental students. The usability test showed that the software responded with correct answers to the majority of the free text questions. The application is generic in its basic functions and can be adapted to other dental or medical subject areas. A randomised controlled trial was carried out with 39 students who attended instruction in history taking with problem-based learning cases, lectures and seminars. In addition, 16 of the 39 students were randomly chosen to practise history taking using the virtual patient prior to their first patient encounter. The performance of each student was recorded on video during the patient sessions. The type and order of the questions asked by the student and the degree of empathy displayed towards the patient were analysed systematically on the videos. The data indicate that students who also undertook history taking with a virtual patient asked more relevant questions, spent more time on patient issues, and performed a more complete history interview compared with students who had only undergone standard teaching. The students who had worked with the virtual patient also seemed to have more empathy for the patients than the students who had not. The practising of history taking with a virtual patient appears to improve the capability of dental students to take a relevant oral health history. [source] Unto Every One That Hath Shall Be Given: The Subject Areas Under The HEFCE FormulaFINANCIAL ACCOUNTABILITY & MANAGEMENT, Issue 3 2000Geoffrey Whittington The Higher Education Funding Council for England and Wales (HEFCE) has recently revised its formulae for the distribution of teaching and research funds between universities. The new formulae are intended to increase the transparency of the allocation process and reduce the reliance on historical patterns of allocation. Analysis shows that the coefficients (costs and prices) on which the formulae depend are estimated from historical data, so that reliance on historical patterns has not been eliminated. Moreover, the process by which the coefficients were derived is not transparent and the data used are not necessarily the most appropriate. Thus, the new formulae, which lead to significant shifts in the allocation of funds between subject areas, cannot be shown to have the transparency and sound empirical basis to which HEFCE aspires. [source] Higher Education in Germany: a Case of ,Uneven' Expansion?HIGHER EDUCATION QUARTERLY, Issue 3 2005Hubert Ertl This paper investigates the expansion of student numbers in higher education (HE) in Germany. The quantitative sources indicate a constant increase in student numbers in the 1990s, but show that this growth was uneven and differentiated. The paper discusses a number of factors that influenced the increases in student numbers since the early 1990s, including the opening up and restructuring of HE in eastern Germany, and the strong increases in female participation and in the number of international students. Growth has been particularly significant in certain subject areas, as well as at Fachhochschulen and at private HE institutions. Current developments regarding the introduction of tuition fees and changing structures regarding access to HE are outlined, and their impact on the future expansion of HE is discussed. [source] Seniors' attitudes: oral health and quality of lifeINTERNATIONAL JOURNAL OF DENTAL HYGIENE, Issue 1 2004Audrey Penner Abstract:, The objective of this study was to determine what impact, if any, oral health was having on the quality of life for selected seniors in Prince Edward Island, Canada. The attitudes of seniors towards oral health and its relationship to quality of life is important to define. This self-reported assessment provides information on this particular relationship. The research design was a random cluster sampling that covered all geographical areas of Prince Edward Island. It represented the cultural diversity within these geographical areas. The survey instrument selected was the Subjective Oral Health Indicators' Status, a validated survey instrument. This particular instrument addressed all the issues raised in the objectives. Data were analysed using Pearson's correlation with age and number of teeth present. The independent t -test was used to identify differences in responses by gender. Results of the survey showed identification of individual indicators that were having an impact on quality of life. Gender differences in responses were identified in four of the eight subject areas. The level of worry/concern was inconclusive because of the high non-response rate to the last question. Non-response rates increased with each topic in the questionnaire. More research is needed to identify clinical needs of seniors on Prince Edward Island. Qualitative study to determine attitudes and beliefs could provide groundwork for future programme design. [source] Development studies and cross-disciplinarity: Research at the social science,physical science interfaceJOURNAL OF INTERNATIONAL DEVELOPMENT, Issue 6 2008Andy Sumner Abstract Cross-disciplinarity is widely accepted in the Development Studies (DS) community, but has principally been interpreted within the social sciences. However, much of the research, practical planning and evaluation studies, and teaching/training in DS involves cross-disciplinarity between the social and physical sciences. We consider the extent of this wider variant of cross-disciplinarity, review factors inhibiting cross-disciplinary collaboration, and explore implications relating to ,single discipline analysis' central to the interest of DS. Our main conclusions are that cross-disciplinarity between social and physical sciences is central to DS activity, and that disciplines, subject areas or knowledge communities need to be modest in defining their ,boundaries' and flexible in encouraging cross-disciplinary collaboration. Copyright © 2008 John Wiley & Sons, Ltd. [source] Analysis of query keywords of sports-related queries using visualization and clusteringJOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 8 2009Jin Zhang The authors investigated 11 sports-related query keywords extracted from a public search engine query log to better understand sports-related information seeking on the Internet. After the query log contents were cleaned and query data were parsed, popular sports-related keywords were identified, along with frequently co-occurring query terms associated with the identified keywords. Relationships among each sports-related focus keyword and its related keywords were characterized and grouped using multidimensional scaling (MDS) in combination with traditional hierarchical clustering methods. The two approaches were synthesized in a visual context by highlighting the results of the hierarchical clustering analysis in the visual MDS configuration. Important events, people, subjects, merchandise, and so on related to a sport were illustrated, and relationships among the sports were analyzed. A small-scale comparative study of sports searches with and without term assistance was conducted. Searches that used search term assistance by relying on previous query term relationships outperformed the searches without the search term assistance. The findings of this study provide insights into sports information seeking behavior on the Internet. The developed method also may be applied to other query log subject areas. [source] The Relative (Un)Importance of Rehnquist Court DecisionsPOLITICS & POLICY, Issue 5 2010ROBERT ROBINSON The Rehnquist Court took conservative positions more often than its immediate predecessors. Less clear, however, is the degree to which its decisions actually impacted the legal framework. Given studies that suggest that ideological heterogeneity within Supreme Court majority coalitions and systematic trends of "institutional thickening" hinder the creation of legally important decisions, I hypothesize that the decisions of the Rehnquist Court should be less legally important relative to prior courts, and should create more important liberal legal decisions than expected. Employing measures of legal importance developed through the network analysis of Supreme Court precedent, I find that Rehnquist Court decisions are less legally important than decisions from prior eras. Furthermore, I find that in the most salient legal subject areas, the Rehnquist Court's liberal and conservative decisions are of roughly equal importance. Given these findings, the Rehnquist Court's ideological impact on precedent is more modest than its critics charge. La Corte de Rehnquist tomó posiciones conservadoras más a menudo que sus predecesores inmediatos. Sin embargo, el grado en el que sus decisiones en realidad impactaron el marco legal es menos claro. Determinados estudios que sugieren que la heterogeneidad ideológica dentro de las coaliciones de mayoría de la Suprema Corte y las tendencias sistemáticas de "robustecimiento institucional" dificultan la formulación de decisiones legalmente importantes, planteo que las decisiones de la Corte de Rehnquist serán legalmente menos importantes en comparación con cortes previas, y formularán decisiones legales liberales más importantes de lo esperado. Utilizando medidas de la importancia legal desarrolladas a través del análisis de red de los precedentes de la Suprema Corte, descubro que las decisiones de la Corte de Rehnquist son legalmente menos importantes que las decisiones de las eras previas. Además, encuentro que en las áreas legales más importantes, las decisiones liberales y conservadoras de la Corte de Rehnquist son aproximadamente de una importancia similar. Dado estos hallazgos, el impacto ideológico de la Corte de Rehnquist sobre precedente es mucho más modesto de lo que sus críticos la acusan. [source] Rural Nebraska Elementary School Educators Teach Nutrition ConceptsTHE JOURNAL OF RURAL HEALTH, Issue 4 2002H. Darlene Pohlman Ph.D. The purpose of this study was to determine if diferences exist in the teaching of nutrition to students in grades one to four in rural (less than 10,000 population); midsized (10,000 to 99,999); and urban (100,000 or more) counties in Nebrash. Surveys me sent to one-fifty of educators teaching grades une to four (n=1,232); the response rate was 37.7%. Sixty eight percent of the teachers responded that the teaching of nutrition was of very high or high priority in the elementary curriculum. Nutrition was taught as part of a nutrition/health unit as well as being integrated into other subject areas. The resources the teachers used me not different by county population size. Significant diferences (p >.05) were observed among county groups as to the frequency of teaching the recommended intakes of grain products, vegetables, fruits, dairy, and meats, with urban teachers teaching these concepts least often. The majority of the teachers rarely, if ever, taught serving sizes and which food groups are in combination foods, with no diferences among county groups. The formal training that the respondents had in nutrition was not different among groups. A larger percentage of teachers in rural and midsized community groups taught food selection concepts me consistently or frequently than did their urban counterparts. [source] Children's Weight and Academic Performance in Elementary School: Cause for Concern?ANALYSES OF SOCIAL ISSUES & PUBLIC POLICY, Issue 1 2009David Clark In this study, the authors examined the relationship of 9,471 elementary students' grades in five subject areas (math, reading, language, science, and social studies), their conduct grades, and their scores on the Texas Assessment of Knowledge & Skills (TAKS) Reading, Math, Writing, and Science measures for the 2006,2007 school year as a function of their weight status in two ways: (1) Obese versus Nonobese and (2) Obese, Overweight, Healthy Weight, and Underweight. Obese children had statistically significantly lower course grades in all areas, as well as poorer conduct grades, than nonobese children. Similar results were present for the four TAKS measures. Comparisons of these measures by the four weight categories indicated the presence of trends such that as students' weight increased from one category to the next, their school grades and standardized test scores decreased. Partial correlation analyses, in which the effects of economic disadvantage and conduct grades were controlled, revealed that obesity was related with teacher-assigned grades and with TAKS scores. Interestingly, within ethnic groups, differences were present between obese and nonobese students only for White students and Hispanic students. The implications of these findings, as well as suggestions for further research, are discussed. [source] Interpreting Parameters in the Logistic Regression Model with Random EffectsBIOMETRICS, Issue 3 2000Klaus Larsen Summary. Logistic regression with random effects is used to study the relationship between explanatory variables and a binary outcome in cases with nonindependent outcomes. In this paper, we examine in detail the interpretation of both fixed effects and random effects parameters. As heterogeneity measures, the random effects parameters included in the model are not easily interpreted. We discuss different alternative measures of heterogeneity and suggest using a median odds ratio measure that is a function of the original random effects parameters. The measure allows a simple interpretation, in terms of well-known odds ratios, that greatly facilitates communication between the data analyst and the subject-matter researcher. Three examples from different subject areas, mainly taken from our own experience, serve to motivate and illustrate different aspects of parameter interpretation in these models. [source] Teachers making connections: Online communities as a source of professional learningBRITISH JOURNAL OF EDUCATIONAL TECHNOLOGY, Issue 2 2010Jennifer Duncan-Howell The impact of the Internet on our lives has been pervasive. People are increasingly turning to the social interaction available on the Internet to satisfy their needs, whether these are professional or personal. The Internet offers users fast access to social contacts such as online chat groups and discussion lists, helping us to make connections with others. Online communities are being increasingly used by teachers for professional support, guidance and inspiration. These are often organised around subject areas and offer teachers opportunities to develop both personally and professionally. Online communities may present as a source of continuous professional development for teachers as they are able to deliver authentic and personalised opportunities for learning. This paper will present the findings of a study that was conducted on three online communities for teachers. It will explore the nature of online community membership and offer some conclusions regarding their potential as a source of professional learning for teachers. [source] ICT implementation: what makes the difference?BRITISH JOURNAL OF EDUCATIONAL TECHNOLOGY, Issue 5 2003Penni Tearle This paper addresses the question of why some schools have managed to introduce widespread use of Information and Communications Technology (ICT) into teaching and learning across the curriculum, where other schools have had much less "success" in this matter. The issue is addressed through interpretive, case study research in a UK secondary school where almost all staff are now using ICT to enhance and extend learning in their subject areas. After setting the context, a summary of the methods used and an overview of the findings are presented. Whilst some of the findings are specific to the context, it is suggested that much can be learnt from the single case, both by practitioners seeking to develop ICT use and researchers interested in taking the subject forward in other contexts. [source] Unmet education and training needs in adolescent health of health professionals in a UK children's hospitalACTA PAEDIATRICA, Issue 6 2006Janet E. McDonagh Abstract Aim: To determine the perceived education and training needs in adolescent health of health professionals. Design: Cross-sectional survey Setting and subjects: Hospital staff in a UK children's hospital. Outcome measures: perceived barriers, confidence, knowledge, skill and prior teaching in key adolescent health subject areas. Results: The hospital survey was completed by 159/1400 professionals representing a completion rate of 11%. Doctors and staff from ,Professions allied to medicine' rated ,lack of training', ,lack of teaching materials' and ,lack of community resources' as the main barriers to providing developmentally appropriate care. Sixty per cent of hospital respondents had received no prior specific training in adolescent health. All but four topics were perceived to be of very high or high importance by the majority of respondents (54,90%). Low scores in perceived knowledge, confidence and/or skill were reported in nine key subject areas (including adolescent mental health and substance use). Differences between doctors and professions allied to medicine were observed in a minority of areas. Conclusion: Unmet education and training needs of a range of professionals working in a paediatric setting were identified in key areas of adolescent health and they provide useful directions for the development of future multidisciplinary training programmes. [source] Reliability and Validity of the Alcohol Use Disorders Identification Test (AUDIT) Imbedded Within a General Health Risk Screening Questionnaire: Results of a Survey in 332 Primary Care PatientsALCOHOLISM, Issue 5 2000Jean-Bernard Daeppen Background: Self-administered, general health risk screening questionnaires that are administered while patients wait in the doctor's office may be a reasonable and timesaving approach to address the requirements of preventive medicine in a typical 10-min medical visit. The psychometric characteristics of the Alcohol Use Disorders Identification Test (AUDIT) incorporated within a health questionnaire (H-AUDIT) have not been examined. Methods: The reliability and validity of the self-administered AUDIT were compared between the H-AUDIT and the AUDIT used as a single scale (S-AUDIT) in 332 primary care patients. Results: No major demographic or alcohol use characteristics were found between the 166 subjects who completed the H-AUDIT and the 166 individuals who completed the S-AUDIT. The test-retest reliability of the 166 subjects who completed the H-AUDIT [estimated by Spearman correlation coefficient at a 6-week interval (0.88), internal consistency (total correlation coefficients for all items ranged from 0.38 to 0.69; Cronbach , index 0.85), and the sensitivity and specificity of the H-AUDIT were used to identify at-risk drinkers' areas under receiver operating characteristic (0.77) and alcohol-dependent subjects' areas under receiver operating characteristic (0.89)] was similar to the same measurements obtained with the 166 individuals who completed the S-AUDIT. Conclusions: The AUDIT incorporated in a health risk screening questionnaire is a reliable and valid self-administered instrument to identify at-risk drinkers and alcohol-dependent individuals in primary care settings. 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