324 research outputs found

    Nongender-Specific Business Periodicals: How Do They Communicate to Women?

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    Nongender-Specific Business Periodicals: How Do They Communicate to Women?

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    Humanistic physical education and athletics in the secondary school

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    The purpose of this study was to study how three physical education situations could become more humanistic. A badminton class, a basketball class, and the girls' interscholastic basketball team were analyzed at a senior high school in Greensboro, North Carolina. The Macdonald, Wolfson, Zaret Conceptual Model (1971) was utilized for observation guide. Aspects of the program examined included: the learning environment, the teacher-student relationship, the curriculum, and the evaluation. Case studies were analyzed with regard to the tenets of humanism formulated in the review of literature. Suggestions to make the situations more humanistic were made by the author. It was concluded that a program could not become totally humanistic within the existing system. Humanistic education is dependent upon teacher-student attitudes. The individual must be concerned about humanism before an attempt to change a program could be made. However, certain techniques in teaching-learning situations can contribute to a humanistic atmosphere

    Using Visual Observations to Compare the Behavior of Previously Immobilized and Non-Immobilized Wild Polar Bears

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    During 17 field seasons between 1973 and 1999, we conducted a long-term study of the behavior of undisturbed wild polar bears in Radstock Bay, southwest Devon Island, Nunavut. In a subset of 11 seasons (6 spring and 5 summer) between 1975 and 1997, we used three different drug combinations to chemically immobilize a small number of adult and subadult polar bears on an opportunistic basis and applied a temporary dye mark so that individual bears could be visually reidentified. We then used multinomial logistic regression to compare the behavior of 35 previously immobilized bears of five different demographic classes (sex, age, and reproductive status) to the behavior of non-immobilized bears of the same demographic classes in the same years and seasons. During the first two days after immobilization, bears slept significantly more and spent less time hunting than did bears that had not been immobilized. However, previously immobilized bears returned to the same behavioral patterns and proportion of total time spent hunting as non-immobilized bears within two days and no further negative behavioral effects were detected in the following 21 d. We visually confirmed successful hunting by three adult bears within 0.4 to 2.1 d of being immobilized, all of which went on to make additional kills within the following 24 h. The return to normal behavior patterns, including the ability to hunt successfully, within 48 h of immobilization appears consistent with the hypothesis that polar bears do not experience longer-term behavioral effects following brief chemical immobilization for conservation and management purposes. Durant 17 saisons de recherche, entre 1973 et 1999, nous avons effectué l’étude à long terme du comportement d’ours polaires sauvages non perturbés à la baie Radstock, dans le sud-ouest de l’île Devon, au Nunavut. Dans un sous-ensemble de 11 saisons (six printemps et cinq étés) échelonnées de 1975 à 1997, nous avons utilisé trois combinaisons de drogues différentes pour immobiliser chimiquement un petit nombre d’ours polaires adultes et d’ours polaires immatures de manière opportuniste, puis nous avons appliqué une marque de colorant temporaire sur les ours afin de pouvoir les réidentifier individuellement. Ensuite, nous avons recouru à la régression logistique multinomiale pour comparer le comportement de 35 ours précédemment immobilisés faisant partie de cinq catégories démographiques différentes (sexe, âge et état reproducteur) au comportement d’ours non immobilisés faisant partie des mêmes catégories démographiques pour les mêmes années et les mêmes saisons. Au cours des deux premières journées suivant l’immobilisation, les ours dormaient beaucoup plus et consacraient moins de temps à la chasse que les ours qui n’avaient pas été immobilisés. Cependant, les ours qui avaient été immobilisés ont repris les mêmes habitudes de comportement et consacré le même temps à la chasse que les ours non immobilisés en dedans de deux jours, et aucun autre effet négatif sur leur comportement n’a été décelé au cours des 21 jours qui ont suivi. Nous avons eu la confirmation visuelle d’une chasse réussie par trois ours adultes dans la période de 0,4 à 2,1 jours suivant l’immobilisation, tous trois ayant réussi à faire d’autres prises dans les 24 heures qui ont suivi. Le retour aux habitudes de comportement normales, y compris l’aptitude à faire une chasse réussie, dans les 48 heures suivant l’immobilisation semble cadrer avec l’hypothèse selon laquelle les ours polaires ne subissent pas d’effets comportementaux de longue haleine après une brève immobilisation chimique à des fins de conservation et de gestion.

    Methodology of a reevaluation of cardiovascular outcomes in the RECORD trial: study design and conduct

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    Background In 2010, after regulatory review of rosiglitazone licensing, the US Food and Drug Administration (FDA) requested a reevaluation of cardiovascular end points in the RECORD trial.<p></p> Methods Automated screening of the original clinical trial database and manual case report form review were performed to identify all potential cardiovascular and noncardiovascular deaths, and nonfatal myocardial infarction (MI) and stroke events. Search techniques were used to find participants lost to follow-up, and sites were queried for additional source documents. Suspected events underwent blinded adjudication using both original RECORD end point definitions and new FDA end point definitions, before analysis by the Duke Clinical Research Institute.<p></p> Results The reevaluation effort included an additional 328 person-years of follow-up. Automated screening identified 396 suspected deaths, 2,052 suspected MIs, and 468 suspected strokes. Manual review of documents by Duke Clinical Research Institute clinical events classification (CEC) coordinators identified an additional 31 suspected deaths, 49 suspected MIs, and 28 suspected strokes. There were 127 CEC queries issued requesting additional information on suspected deaths; 43 were closed with no site response, 61 were closed with a response that no additional data were available, and additional data were received for 23. Seventy CEC queries were issued requesting additional information for suspected MI and stroke events; 31 were closed with no site response, 20 were closed with a response that no additional data were available, and 19 resulted in additional data.<p></p> Conclusions Comprehensive procedures were used for rigorous event reascertainment and readjudication in a previously completed open-label, global clinical trial. These procedures used in this unique situation were consistent with other common approaches in the field, were enhanced to address the FDA concerns about the original RECORD trial results, and could be considered by clinical trialists designing event readjudication protocols for drug development programs that have been completed.<p></p&gt

    Results of a reevaluation of cardiovascular outcomes in the RECORD trial

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    Background The US Food and Drug Administration (FDA) required a reevaluation of cardiovascular (CV) outcomes in the RECORD trial. This provided an opportunity to assess the implications of event adjudication by 2 groups and quantify the differences as well as to use new FDA end point definitions in development.<p></p> Methods Original data were used to systematically identify all potential deaths, myocardial infarctions (MIs), and strokes. Site investigators were approached for additional source documents and information about participants lost to follow-up. Suspected events were adjudicated using standard procedures, and the results were compared with the original trial outcomes.<p></p> Results Follow-up for mortality was 25,833 person-years, including an additional 328 person-years identified during the reevaluation effort. A total of 184 CV or unknown-cause deaths (88 rosiglitazone, 96 metformin/sulfonylurea), 128 participants with an MI (68 rosiglitazone, 60 metformin/sulfonylurea), and 113 participants with a stroke (50 rosiglitazone, 63 metformin/sulfonylurea) were included. The hazard ratio (HR) for rosiglitazone versus metformin/sulfonylurea for the end point of CV (or unknown cause) death, MI, or stroke was 0.95 (95% CI 0.78-1.17) compared with 0.93 (95% CI 0.74-1.15) for the original RECORD results. Treatment comparisons for MI (HR 1.13, 95% CI 0.80-1.59) and mortality (HR 0.86, 95% CI 0.68-1.08) were also the same compared with the original RECORD results. Sensitivity analyses were also consistent with the original RECORD results. Analyses using the FDA definitions showed similar results.<p></p> Conclusions Only a modest number of additional person-years of follow-up were ascertained from this reevaluation of CV end points in RECORD. Observed HRs and CIs from these analyses using the original RECORD or new FDA end point definitions showed similar treatment effects of rosiglitazone compared with the original RECORD results.<p></p&gt

    The Effects of Continuous Improvement Practices Using State Value-Added Data for Reading Educator Program Enhancement

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    Louisiana’s value-added evaluation of teacher preparation programs has provided a salient impetus for program improvement; however, due to the nature of the assessment, teacher preparation programs need to use additional sources of data to identify actionable responses to the value-added results. This paper describes one teacher preparation program’s approach to continuous program improvement in reading education and describes some of the limitations and benefits of value-added assessment results for that purpose

    Pathways to clinical CLARITY: volumetric analysis of irregular, soft, and heterogeneous tissues in development and disease

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    AbstractThree-dimensional tissue-structural relationships are not well captured by typical thin-section histology, posing challenges for the study of tissue physiology and pathology. Moreover, while recent progress has been made with intact methods for clearing, labeling, and imaging whole organs such as the mature brain, these approaches are generally unsuitable for soft, irregular, and heterogeneous tissues that account for the vast majority of clinical samples and biopsies. Here we develop a biphasic hydrogel methodology, which along with automated analysis, provides for high-throughput quantitative volumetric interrogation of spatially-irregular and friable tissue structures. We validate and apply this approach in the examination of a variety of developing and diseased tissues, with specific focus on the dynamics of normal and pathological pancreatic innervation and development, including in clinical samples. Quantitative advantages of the intact-tissue approach were demonstrated compared to conventional thin-section histology, pointing to broad applications in both research and clinical settings.</jats:p

    Use of Near-Infrared Spectroscopic Analysis of Second Trimester Amniotic Fluid to Assess Preterm Births

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    This pilot study investigated the possibility that metabolomic differences exist in second trimester of women delivering at term (≥37 weeks, n = 216) and preterm (≤35 weeks, n = 11). For this retrospective study, biobanked AF samples underwent near-infrared (NIR) spectral analysis using wavelengths from 700 to 1050 nm. Spectral data was compressed then optimized by multilinear regression to create a calibration model. The resultant model was able to classify term and preterm births based on differing AF metabolomic profiles with a sensitivity and specificity of 100%. When groups were classified using a prematurity index (PI), there was a statistical difference (P < 0.001) between the predicted preterm group (PI 0.77 ± 0.08) and the term group (PI 1.00 ± 0.02). In conclusion, the 2nd trimester AF samples showed distinct differences in metabolomic profiles between patients delivering preterm as compared to those at term in functional groups related to proteins, carbohydrates, fats, polyols, and water

    Development and Use of a Web-based Data Management System for a Randomized Clinical Trial of Adolescents and Young Adults

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    Recent advances in technology provide support for multi-site, web-based data entry systems and the storage of data in a centralized location, resulting in immediate access to data for investigators, reduced participant burden and human entry error, and improved integrity of clinical trial data. The purpose of this paper is to describe the development of a comprehensive, web-based data management system for a multi-site randomized behavioral intervention trial. Strategies used to create this study-specific data management system included interdisciplinary collaboration, design mapping, feasibility assessments, and input from an advisory board of former patients with characteristics similar to the targeted population. The resulting data management system and development strategies provide a template for other behavioral intervention studies
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