617 research outputs found

    Examining the Socially Responsible Leadership Development Outcomes of Study Abroad Experiences for College Seniors

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    This thesis explored the leadership development outcomes of study abroad experiences for college seniors. This is the first study attempting to identify the link between involvement in study abroad, a growing trend in higher education, and student leadership development, a value of higher education institutions. Data from the 2009 Multi-Institutional Study of Leadership was used in this study, specifically the sample of over 31,000 seniors from 99 four-year institutions. The hypothesis that study abroad contributes significantly to student leadership development was tested using hierarchical regression statistical analysis. This study's model explained 21% of the variance in the omnibus measure of the Socially Responsible Leadership Scale (SRLS), with pre-college leadership development factors as the only independent variable with significant contribution. A post-hoc analysis found that there was a small but significant difference on the omnibus SRLS between those who did, and those who did not, study abroad. This study's findings offer implications for higher education practitioners and research

    Evolution of Open Source Software: A Study on the Samba Project

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    Open Source Software (OSS) development model has attracted considerable attention in recent years, primarily because it offers a non-proprietary and socially beneficial model of software development backed by a dedicated community of developers and users who share and expand their knowledge and expertise. This research investigates the evolution of open source software using a case study of the Samba project. Through the application of both qualitative and quantitative techniques, Samba\u27s software development and evolution over a seven-year period are tracked and assessed. This assessment and the findings of similar, previously reported studies lead us to propose a general framework for the evolvabiltity and the key drivers of open source software evolution. open-source communities for socially coordinated software development

    An analysis of specific batting demands in the women’s The Hundred competition

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    Background: No research has investigated the shortest format of the game of cricket, The Hundred competition. Furthermore, women’s cricket research is particularly limited, with most focusing on injuries and little literature investigating specific batting demands. These demands are important if training programmes are to mimic the game’s movement patterns. Objectives: The purpose of this study was to analyse specific batting demands and variables associated with the women’s The Hundred competition. Methods: Thirty-one matches from the Women’s 2021 The Hundred competition were analysed using Hudl Sportscode Elite. Variables analysed included: bowler type (seam or spin), free hits, no ball runs, reason for no ball (height/wide/front foot), run scored (0, 1, 2, 3, 4, 6), type of key event (fall of wicket, bowling referral, batting referral, umpire referral, bowling time out, rain delay, or injury) as well as time between deliveries and sets, overall and between the power play and non-power play. A total of 6073 deliveries were analysed. Results: A significant difference (p<0.05) was observed for time between deliveries for spin bowlers (26.90±22.16 s) compared to seam bowlers(31.70±20.37 s) as well as time between sets for the power play (58.00±13.28 s) and non- power play phases (63.70±42.00 s). Additionally, in the power play, most runs were made up of “1’s” and “4’s”. In the non- power play phase, “1’s” made up the biggest contribution of runs (as a percentage). Conclusion: The fact that singles make up a significant portion of a typical match means that strength and conditioning coaches should incorporate high-intensity sprint-type training into training programmes to mimic these demands

    3-Axis Reaction Wheel System for CubeSats

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    Reaction wheels are a common, but expensive, component used in CubeSats, that can accurately position a satellite using an imparted momentum (or impulse) from a rotating flywheel to adjust a satellite’s attitude. This document serves as the final design review and report for the 3-Axis Reaction Wheel Senior Design Project in the Mechanical Engineering Department of California Polytechnic State University, San Luis Obispo. The goal of this project is to produce a functional, low-cost 3-axis reaction wheel system based on previous research done by a master’s student at Cal Poly to be implemented in future CubeSats in the Cal Poly CubeSat Laboratory. Since the main components of the reaction wheel are already specified and designed by a published thesis that is the basis of the project, the team focused design efforts mostly on the motor and outer housing of the reaction wheel system as well as how it interfaces with the CubeSat. The manufacturing, assembly, and testing will be done on the entire system of reaction wheels and housings to ensure a successful prototype can be delivered to the sponsor

    Impact of Telemedicine on Mortality, Length of Stay, and Cost among Patients in Progressive Care Units: Experience from a Large Healthcare System

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    Utilizing a retrospective observational study design, this study aimed to determine whether telemedicine intervention can affect hospital mortality, length of stay, and direct costs for progressive care unit patients. Adult patients admitted to progressive care unit (PCU) as their primary admission in a large health care system between December 2011 and August 2016 (n = 16091). During the study period, PCU patients with telemedicine intervention (TPCU, n = 8091) and nontelemedicine (NTPCU, n = 8000) were compared concurrently. Primary outcome was PCU and hospital mortality. Secondary outcomes were hospital length of stay, PCU length of stay, and mean direct costs. The mean age NTPCU and TPCU patients were 63.4 years (95%CI, 62.9-63.8 yr) and 71.1 years (95% CI, 70.7-71.74 yr), respectively. All Patient Refined-Diagnosis Related Group Disease Severity (

    Microbial Community Structure in a Malaysian Tropical Peat Swamp Forest: The Influence of Tree Species and Depth

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    Tropical peat swamp forests sequester globally significant stores of carbon in deep layers of waterlogged, anoxic, acidic and nutrient-depleted peat. The roles of microbes in supporting these forests through the formation of peat, carbon sequestration and nutrient cycling are virtually unknown. This study investigated physicochemical peat properties and microbial diversity between three dominant tree species: Shorea uliginosa (Dipterocarpaceae), Koompassia malaccensis (legumes associated with nitrogen-fixing bacteria), Eleiodoxa conferta (palm) and depths (surface, 45 and 90 cm) using microbial 16S rRNA gene amplicon sequencing. Water pH, oxygen, nitrogen, phosphorus, total phenolic contents and C/N ratio differed significantly between depths, but not tree species. Depth also strongly influenced microbial diversity and composition, while both depth and tree species exhibited significant impact on the archaeal communities. Microbial diversity was highest at the surface, where fresh leaf litter accumulates, and nutrient supply is guaranteed. Nitrogen was the core parameter correlating to microbial communities, but the interactive effects from various environmental variables displayed significant correlation to relative abundance of major microbial groups. Proteobacteria was the dominant phylum and the most abundant genus, Rhodoplanes, might be involved in nitrogen fixation. The most abundant methanogens and methanotrophs affiliated, respectively, to families Methanomassiliicoccaceae and Methylocystaceae. Our results demonstrated diverse microbial communities and provide valuable insights on microbial ecology in these extreme ecosystems

    Molecular cloning of the Ecotin gene in Escherichia coli

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    AbstractThe nucleotide sequence of a 876 bp region in E. coli chromosome that encodes Ecotin was determined. The proposed coding sequence for Ecotin is 486 nucleotides long, which would encode a protein consisting of 162 amino acids with a calculated molecular weight of 18 192 Da. The deduced primary sequence of Ecotin includes a 20-residue signal sequence, cleavage of which would give rise to a mature protein with a molecular weight of 16 099 Da. Ecotin does not contain any consensus reactive site sequences of known serine protease inhibitor families, suggesting that Ecotin is a novel inhibitor
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