543 research outputs found

    Tennessee 4-H Center Summer Residential Camping Programs: Settings for Positive Youth Development as Perceived by Youth Campers

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    Adults involved in residential camping for children claim that the camp experience enhances children’s development in a variety of ways but there is little empirical research to document their claims. The purpose of this research was to explore the nature of the impact of residential camping on youth campers. The relationship between attributes of life skills practiced and the contextual features of the camp environment was the primary area of examination. The demographic variables of grade and gender were also examined to determine if significant differences in program effects existed. The study population included fourth through sixth grade youth attending Tennessee 4-H camps in the summer of 2004. The study sample included all eligible campers of the selected camp week at the four Tennessee 4-H Centers. Seventy-two percent of eligible campers participated, resulting in 720 campers as study participants. The project involved minors and was approved by the University of Tennessee Institutional Review Board and Human Subjects Committee. Data for this study were collected through a self-report survey questionnaire. A series of statistical analyses, including Pearson r correlation and linear regression, were utilized to analyze data from the research question designed to examine how campers perceive the camp environment and life skill practiced, and how the perceived presence of the components of camp predicts the broad range of life skills supported. Analyses revealed that residential campers participating in Junior Camp at the four Tennessee 4-H Centers gave high ratings to four dimensions of the camp environment, including emotional and moral support, physical safety and security, psychological safety and security, and supportive adult relationships. Campers also “agree” that life skills are enhanced at camp, including building relationships, communication and social interaction, decision-making, leadership, self-responsibility, and teamwork and cooperation. The context of the camp environment is found to support life skill practice among residential youth campers at the four Tennessee 4-H Centers. When examining the relationships of the life skills to the broad range of contextual features, together with grade and gender, they account for an average 41.4% of the variance. Although there is a significant relationship between a majority of the life skills and grade or gender, the contribution of grade or gender is minimal compared to the relationship between the life skill and the camp context. This finding indicates that other unknown factors, aside from the contextual features, grade, or gender contribute the remaining 58.6

    A Fully Bayesian Approach for Combining Multilevel Failure Information in Fault Tree Quantification and Corresponding Optimal Resource Allocation

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    This paper presents a fully Bayesian approach that simultaneously combines basic event and statistically independent higher event-level failure data in fault tree quantification. Such higher-level data could correspond to train, sub-system or system failure events. The full Bayesian approach also allows the highest-level data that are usually available for existing facilities to be automatically propagated to lower levels. A simple example illustrates the proposed approach. The optimal allocation of resources for collecting additional data from a choice of different level events is also presented. The optimization is achieved using a genetic algorithm

    Exile Vol. XLVI No. 1

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    44th Year Title Page 3 Epigraph by Ezra Pound 5 Statement of Policy 6 Table of Contents 7 Contributors Notes 37 Editorial Board 38 ART Incredible Lines by David Tulkin \u2701 8 Untitled by David Tulkin \u2701 12 Untitled by Patrick Yingling \u2703 18 Sculpted Body by David Tulkin \u2701 20 Untitled by Tanya Sheremeta \u2701 25 Untitled by David Tulkin \u2701 28 Untitled by Dena Behi \u2701 36 POETRY Wednesday by Mary Ann T. Davis \u2700 9 Music by Jessica Kramer \u2703 10-11 Worship During the Rainy Season by Allison Armbrister \u2701 19 Mercy by Mary Ann T. Davis \u2700 26-27 Albino Lizard by Matthew Martz \u2702 29 Filling of Lake Cumberland, 1951 by Allison Armbrister \u2701 35 PROSE Storm Drain by Matthew Martz \u2702 13-17 Creases by Stephanie M. Vaccaro \u2701 21-24 When It Rains by Matthew Martz \u2702 30-34 Statement of Policy This semester Exile instituted a new policy limiting submissions to those not involved in the production of the magazine. As always, all submissions are reviewed on an anonymous basis, and all editorial decisions are shared equally among the members of the Editorial Board. -6 Cover Art Untitled by Dena Behi \u2701 / Back Cover Art Untitled by Tanya Sheremeta \u2701 -38 Printed by Printing Arts Press -38 Matthew Martz, Albino Lizard, Storm Drain and When It Rains , redacted due to copyright restrictions

    Therapist and computer‐based brief interventions for drug use within a randomized controlled trial: effects on parallel trajectories of alcohol use, cannabis use and anxiety symptoms

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    Background and AimsDespite their high comorbidity, the effects of brief interventions (BI) to reduce cannabis use, alcohol use and anxiety symptoms have received little empirical attention. The aims of this study were to examine whether a therapist‐delivered BI (TBI) or computer‐guided BI (CBI) to address drug use, alcohol consumption (when relevant) and HIV risk behaviors, relative to enhanced usual care (EUC), was associated with reductions in parallel trajectories of alcohol use, cannabis use and anxiety symptoms, and whether demographic characteristics moderated reductions over time.DesignLatent growth curve modeling was used to examine joint trajectories of alcohol use, cannabis use and anxiety symptoms assessed at 3, 6 and 12 months after baseline enrollment.SettingHurley Medical Center Emergency Department (ED) in Flint, MI, USA.ParticipantsThe sample was 780 drug‐using adults (aged 18–60 years; 44% male; 52% black) randomly assigned to receive either a TBI, CBI or EUC through the HealthiER You study.Interventions and comparatorED‐delivered TBI and CBIs involved touchscreen‐delivered and audio‐assisted content. The TBI was administered by a Master’s‐level therapist, whereas the CBI was self‐administered using a virtual health counselor. EUC included a review of health resources brochures in the ED.MeasurementsAssessments of alcohol use (10‐item Alcohol Use Disorders Identification Test), cannabis use (past 30‐day frequency) and anxiety symptoms (Brief Symptom Inventory‐18) occurred at baseline and 3‐, 6‐ and 12‐month follow‐up.FindingsTBI, relative to EUC, was associated with significant reductions in cannabis use [B = –0.49, standard error (SE) = 0.20, P < 0.05) and anxiety (B = –0.04, SE = 0.02, P < 0.05), but no main effect for alcohol use. Two of 18 moderation tests were significant: TBI significantly reduced alcohol use among males (B = –0.60, SE = 0.19, P < 0.01) and patients aged 18–25 years in the TBI condition showed significantly greater reductions in cannabis use relative to older patients (B = –0.78, SE = 0.31, P < 0.05). Results for CBI were non‐significant.ConclusionsEmergency department‐based therapist‐delivered brief interventions to address drug use, alcohol consumption (when relevant) and HIV risk behaviors may also reduce alcohol use, cannabis use and anxiety over time, accounting for the overlap of these processes.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/152851/1/add14781.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/152851/2/add14781_am.pd

    MicroCT: Automated Analysis of CT Reconstructed Data of Home Made Explosive Materials Using the Matlab MicroCT Analysis GUI

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    This Standard Operating Procedure (SOP) provides the specific procedural steps for analyzing reconstructed CT images obtained under the IDD Standard Operating Procedures for data acquisition [1] and MicroCT image reconstruction [2], per the IDD Quality Assurance Plan for MicroCT Scanning [3]. Although intended to apply primarily to MicroCT data acquired in the HEAFCAT Facility at LLNL, these procedures may also be applied to data acquired at Tyndall from the YXLON cabinet and at TSL from the HEXCAT system. This SOP also provides the procedural steps for preparing the tables and graphs to be used in the reporting of analytical results. This SOP applies to production work - for R and D there are two other semi-automated methods as given in [4, 5]

    Perspectives on Chemical Oceanography in the 21st century: Participants of the COME ABOARD Meeting examine aspects of the field in the context of 40 years of DISCO

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    The questions that chemical oceanographers prioritize over the coming decades, and the methods we use to address these questions, will define our field's contribution to 21st century science. In recognition of this, the U.S. National Science Foundation and National Oceanic and Atmospheric Administration galvanized a community effort (the Chemical Oceanography MEeting: A BOttom-up Approach to Research Directions, or COME ABOARD) to synthesize bottom-up perspectives on selected areas of research in Chemical Oceanography. Representing only a small subset of the community, COME ABOARD participants did not attempt to identify targeted research directions for the field. Instead, we focused on how best to foster diverse research in Chemical Oceanography, placing emphasis on the following themes: strengthening our core chemical skillset; expanding our tools through collaboration with chemists, engineers, and computer scientists; considering new roles for large programs; enhancing interface research through interdisciplinary collaboration; and expanding ocean literacy by engaging with the public. For each theme, COME ABOARD participants reflected on the present state of Chemical Oceanography, where the community hopes to go and why, and actionable pathways to get there. A unifying concept among the discussions was that dissimilar funding structures and metrics of success may be required to accommodate the various levels of readiness and stages of knowledge development found throughout our community. In addition to the science, participants of the concurrent Dissertations Symposium in Chemical Oceanography (DISCO) XXV, a meeting of recent and forthcoming Ph.D. graduates in Chemical Oceanography, provided perspectives on how our field could show leadership in addressing long-standing diversity and early-career challenges that are pervasive throughout science. Here we summarize the COME ABOARD Meeting discussions, providing a synthesis of reflections and perspectives on the field

    Spectrophotometric Calibration of pH Electrodes in Seawater Using Purified m-Cresol Purple

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    This work examines the use of purified meta-cresol purple (mCP) for direct spectrophotometric calibration of glass pH electrodes in seawater. The procedures used in this investigation allow for simple, inexpensive electrode calibrations over salinities of 20–40 and temperatures of 278.15–308.15 K without preparation of synthetic Tris seawater buffers. The optimal pH range is ∌7.0–8.1. Spectrophotometric calibrations enable straightforward, quantitative distinctions between Nernstian and non-Nernstian electrode behavior. For the electrodes examined in this study, both types of behavior were observed. Furthermore, calibrations performed in natural seawater allow direct determination of the influence of salinity on electrode performance. The procedures developed in this study account for salinity-induced variations in liquid junction potentials that, if not taken into account, would create pH inconsistencies of 0.028 over a 10-unit change in salinity. Spectrophotometric calibration can also be used to expeditiously determine the intercept potential (i.e., the potential corresponding to pH 0) of an electrode that has reliably demonstrated Nernstian behavior. Titrations to ascertain Nernstian behavior and salinity effects can be undertaken relatively infrequently (∌weekly to monthly). One-point determinations of intercept potential should be undertaken frequently (∌daily) to monitor for stable electrode behavior and ensure accurate potentiometric pH determinations

    Gender comparisons of fat talk in the United Kingdom and the United States

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    This study compared different forms of body talk, including "fat talk," among 231 university men and women in central England (UK; n = 93) and the southeastern United States (US; n = 138). A 2 (gender) by 2 (country) repeated measures ANOVA across types of body talk (negative, self-accepting, positive) and additional Chi-square analyses revealed that there were differences across gender and between the UK and US cultures. Specifically, UK and US women were more likely to report frequently hearing or perceiving pressure to engage in fat talk than men. US women and men were also more likely to report pressure to join in self-accepting body talk than UK women and men
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