1,356 research outputs found

    A Computer-Assisted Pre-Service Program in Reading

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    In 1975, the National Right-to-Read effort funded an experimental project at Northwestern University involving the application of computer facilities to the operation of a pre-service program for teacher preparation in reading. Utilizing a competency-based model (Houston and Howsam, 1972), the computer component of the program managed the student\u27s entry into and progress through a series of on-line, interactive tutorials by assessing their initial behaviors, assigning lesson modules, guiding use of a bibliographical data base and monitoring progress

    Pseudotumor cerebri and ciprofloxacin: a case report

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    INTRODUCTION: We present a case of ciprofloxacin-associated pseudotumor cerebri in a 22-year-old African American woman. Withdrawal of ciprofloxacin in our patient resulted in complete resolution of ciprofloxacin-associated pseudotumor, as evidenced by a normal neuro-ophthalmic examination and a cerebrospinal fluid opening pressure of 140 mmH20. CASE PRESENTATION: A 22-year-old African American woman presented with a headache of two weeks duration, visual blurring and horizontal diplopia after starting ciprofloxacin for pyelonephritis. An ophthalmic examination revealed that she had left eye esotropia, and a picture of the fundus demonstrated bilateral disc swelling without spontaneous venous pulsations. Magnetic resonance imaging of the brain and a magnetic resonance venogram were normal. A diagnostic lumbar puncture demonstrated an elevated opening pressure of 380mmH2O in a supine position. Laboratory examinations, including a cerebrospinal fluid exam, were unremarkable. CONCLUSION: ciprofloxacin-associated pseudotumor can cause chronic disabling headache and visual complications. Therapy is sub-optimal, often symptomatic, insufficient and complicated by side effects. When ciprofloxacin-associated pseudotumor presents in an atypical population, an inciting agent must be suspected because prompt withdrawal of the agent may lead to complete resolution of symptoms and prevent recurrence of similar episodes

    Evolving community response to tourism and change in Rotorua

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    The aim of this report is to outline how the Rotorua community experiences tourism and tourism development and how they have adapted to it. The objectives are to: give an historical account of the history of the development of tourism in Rotorua; give an account of broader community issues which influence the community's attitudes to tourism development in their town; record the perceptions that residents have of tourism and show how these have changed over time; describe how the host community copes with the type of tourism development that exists in the area; and suggest what factors might be important in influencing residents' perceptions of tourism and their adaptation to it. This report argues that the community in Rotorua is generally very accepting of tourism, and that tourism in the town is well managed due to the proactive role taken by the local Council in relation to tourism development and promotion. Local people see tourism as a source of stability at a time of great change. For local decision-makers, tourism is a means to address the problems of unemployment and poverty which appear to be increasing in the area

    Visitorsā€™ and localsā€™ views of environmental management in Christchurch, New Zealand

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    The objective of the research presented in this report was to develop an understanding of visitors' and locals' views of environmental management in Christchurch. A total of 63 people were selected in a diverse, non-random sample with roughly equal proportions of men and women, and including 21 overseas visitors, 33 domestic visitors and 22 local people. Each subject sorted a pre selected set of structured photographs into nine piles, ranging from those that represented good environmental management to those that represented poor environmental management, to create their own Q sort. All Q sorts were factor analysed to identify three factors or views on environmental management. Subjects' attitudes, beliefs and expectations in making their selections were recorded in interviews and provide an additional basis for interpreting the three different factors. The themes distinctive to the factors, and the themes that are common to the factors, are discussed to develop some theoretical implications. Finally, a number of implications for policy are considered, in particular the need to retain a breadth of approaches to environmental management

    Electron microscopical study to assess the in vitro effects of the synthetic trioxolane OZ78 against the liver fluke, Fasciola hepatica

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    Adult Fasciola hepatica were incubated for 48 h in vitro in the synthetic peroxide, OZ78 at a concentration of 100 Ī¼g/ml and then prepared for scanning and transmission electron microscopy. There was limited disruption to the external fluke surface, with only slight swelling and blebbing of the interspinal tegument in the midbody and ventral tail regions. By contrast, significant disruption was observed to the ultrastructure of the tegument and subtegumental tissues. There was severe swelling of the basal infolds in the tegumental syncytium and the flooding spread internally to affect the subtegumental tissues. In the tegumental system, there was swelling of the cisternae of granular endoplasmic reticulum and of the mitochondria, with the latter showing signs of breaking down. Autophagic vacuoles and lipid droplets were present and the synthesis of tegumental secretory bodies was much reduced. The gastrodermal cells were severely affected, with swelling and degeneration of the mitochondria and the presence of autophagic vacuoles and lipid droplets. The granular endoplasmic reticulum was swollen and vesiculated and the cells contained few secretory bodies. Both the vitelline and testis follicles showed evidence of extensive cellular disruption and degeneration. This study confirms previous data indicating the potential flukicidal activity of OZ7

    Almost Block Diagonal Linear Systems: Sequential and Parallel Solution Techniques, and Applications

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    Almost block diagonal (ABD) linear systems arise in a variety of contexts, specifically in numerical methods for two-point boundary value problems for ordinary differential equations and in related partial differential equation problems. The stable, efficient sequential solution of ABDs has received much attention over the last fifteen years and the parallel solution more recently. We survey the fields of application with emphasis on how ABDs and bordered ABDs (BABDs) arise. We outline most known direct solution techniques, both sequential and parallel, and discuss the comparative efficiency of the parallel methods. Finally, we examine parallel iterative methods for solving BABD systems. Copyright (C) 2000 John Wiley & Sons, Ltd

    Engaging Undergraduates in Science Research: Not Just About Faculty Willingness.

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    Despite the many benefits of involving undergraduates in research and the growing number of undergraduate research programs, few scholars have investigated the factors that affect faculty members' decisions to involve undergraduates in their research projects. We investigated the individual factors and institutional contexts that predict faculty members' likelihood of engaging undergraduates in their research project(s). Using data from the Higher Education Research Institute's 2007-2008 Faculty Survey, we employ hierarchical generalized linear modeling to analyze data from 4,832 science, technology, engineering, and mathematics (STEM) faculty across 194 institutions to examine how organizational citizenship behavior theory and social exchange theory relate to mentoring students in research. Key findings show that faculty who work in the life sciences and those who receive government funding for their research are more likely to involve undergraduates in their research project(s). In addition, faculty at liberal arts or historically Black colleges are significantly more likely to involve undergraduate students in research. Implications for advancing undergraduate research opportunities are discussed

    Ecosystem states of the Coorong : an ecosystem response model

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