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Damir Zubac Tomislav Antelj Dragana Olujic Vladimir Ivancev Shawnda A. Morrison 《Journal of sports sciences》2017,35(8):719-726
This study investigated (i) the prevalence of hypohydration and (ii) association between urinary indices of hydration status and confounding factors (e.g., urine protein content, water intake) in elite youth boxers during their weight-stable phase before competition. Sixteen national champion boxers (all male, 17 ± 1 y) were measured on 3 occasions (baseline, day 3, day 10), 30-day prior to competition. Body mass, total body water, urine specific gravity (USG), osmolality (UOSM) and total protein content (TPC) were evaluated to determine hydration status and fluid balance. Overall macronutrient and water intake were assessed using dietary records. Both UOSM and USG increased from day 3 to day 10 by 16% and 0.4% (P < 0.001), despite athletes being in their weight-stability period, and regardless of ad libitum fluid intake. Hypohydration was universally prevalent among all athletes on both test days with USG: 1.027 ± 0.003 g · mL?1 and UOSM: 1035 ± 108 mOsmol · kg?1. An inverse association between mean UOSM values and mean water intake was observed (R = ?0.52, P = 0.04), while TPC was not associated with any urinary dehydration markers (USG, P = 0.51; UOSM, P = 0.61). The present outcomes find that the most prevalent urinary dehydration markers used to classify hydration status in competition exhibit large variability, even during weight-stable periods. 相似文献
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Adrijana Doroti? Dragana Anton?i? Vanja Radi?i? Biljak Dara Nedi? Andjelo Beleti? 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2015,25(3):393-400
Introduction
Hemolysis can occur during sample collection, handling and transport. It is more frequent when the non-laboratory staff performs sampling. The aim of this study was to assess nurses’ knowledge on the causes of hemolysis and consequential impact on the laboratory tests results. Additionally, the differences in knowledge, related to work experience, professional degree and previous education about hemolysis were explored.Materials and methods
An anonymus survey, containing 11 questions on demographics, causes of hemolysis, its impact on biochemical parameters and nurses’ attitude towards additional education in preanalytics, was conducted in four Croatian hospitals. The answers were compared by Chi-squared and Fischer exact test.Results
In total, 562 survey results were collected. Majority of nurses declared familiarity with the term “hemolysis” (99.6%). There were 77% of correct answers regarding questions about the causes of hemolysis, but only 50% when it comes to questions about interference in biochemical tests. The percentage of correct answers about causes was significantly lower (P = 0.029) among more experienced nurses, and higher (P = 0.027) in those with higher professional degree, while influence of previous education was not significant. Also, higher percentage of correct answers about interferences was encountered in nurses with longer work experience (P = 0.039). More than 70% of nurses declared that additional education about preanalytical factors would be beneficial.Conclusion
Croatian nurses are familiar with the definition of hemolysis, but a lack of knowledge about causes and influence on laboratory test results is evident. Nurses are eager to improve their knowledge in this field of preanalytical phase.Key words: hemolysis, nurses, survey, preanalytical phase 相似文献3.
Giavana Jones Dragana Ostojic Jessica Menard Erin Picard 《The Journal of educational research》2017,110(2):171-176
Reading is typically considered a survival skill in our technology- and literacy-bound culture. Individuals who struggle with learning to read are at significantly elevated risk for a number of negative outcomes, including school failure, under- and unemployment, and special education placement. Thus, those who do not learn to read fluently will likely be a greater drain on society's resources. The authors examined the effects of a universal (school district-wide) implementation of a well-validated peer-tutoring reading intervention as a system-wide prevention measure in kindergarten through Grade 3 in a small metropolitan area in Canada. Results suggest that nearly all children demonstrated improved reading fluency over time. Yet those at highest-risk for poor outcomes, including those living in poverty and those who face learning challenges due to English as a second-language status or special education enrollment, did not make parallel gains to same-age peers in more affluent schools. Implications for educational policy are discussed. 相似文献
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Medic and colleagues (Medic, Starkes, & Young, 2007) found that relatively younger cohorts of Masters athletes had higher participation rates and achieved higher performances compared with a relatively older cohort. Considering that Medic and colleagues' (2007) study was cross-sectional in nature, the purpose of this investigation was to employ a retrospective longitudinal study design to examine the participation rates of Masters swimmers as a function of an individual's constituent year within any 5-year age category over a period of 6 years. Using archived data from the 2003 to 2009 US Masters Short Course National Championships, swimmers' attendance was followed for a period of six consecutive years. Results indicated that a participation-related relative age effect was observed among swimmers who, over a period of 6 years, competed in either at least one championship (N = 2596; Cochran's Q? = 64.16, r(s) = -0.92, both P < 0.0001) or at least three championships (N = 441; Cochran's Q? = 47.51, r(s) = -0.91, both P < 0.0001). Overall, effect size analyses indicated that the odds of a Masters swimmer participating in the championship during the first constituent year of any 5-year age category was more than two times greater than the odds of that athlete participating during the fifth constituent year. 相似文献
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This paper describes development and delivery of the curriculum for a four-year undergraduate program in applied Information
Sciences which comprises all the aspects of information systems security. After the first generation of students graduated
in 2008, the program was evaluated by using multiple methods, including an exploration of the challenges and successes the
program underwent in the process. By reflecting on the established need for such a program and how it evolved historically,
the authors set up a baseline for comparing this program with other related programs in the field as well as with known information
systems security curriculum models. While this curriculum continues to be modified in response to requirements from the job
market and input from industry experts, some challenges for the program remain, such as scarcity of qualified instructors
to ensure seamless program delivery, having students with varied educational backgrounds in the same class, and underrepresentation
of females. Program curriculum details and useful experiential conclusions are also provided. 相似文献
7.
This paper describes experiences in organizing and running an internship component of an undergraduate program in information
systems security. In 2004, Sheridan College Institute of Technology and Advanced Learning introduced a novel Bachelor in Applied
Information Sciences (Information Systems Security) program. The intent was to educate well-rounded specialists in the field
and provide them with valuable work experience during the 8-month long co-op term. The research presented here is based on
the co-op officer reports, statistics reported by the co-op office, interviews with the students and other anecdotal data
mainly collected through conversations with the involved parties. Besides providing facts that speak to the quality of the
program and appropriate organization of the job placements, the authors critically examine successes and challenges encountered
in this process. Comparison with other information systems security postsecondary programs in Ontario, Canada, is given based
on type of program, characteristics and focus of curriculum content and length of internship. 相似文献
8.
Dragana Martinovic Natasha Wiebe Snezana Ratkovic Colleen Willard-Holt Terry Spencer Maria Cantalini-Williams 《Educational Action Research》2013,21(3):385-406
This paper reports on a mixed-methods study related to K–12 teachers’ understandings of what research is, and what enables or inhibits teacher use of research in the classroom towards informing their instructional practices. In a collaboration exemplifying school board and university partnerships, we examined the nature of associations between teachers and education research(ers). Our findings indicated that teachers felt both connected and disconnected to research practices in education. Participants suggested ways to establish and sustain better links and collaborations among the communities of teaching and research. This paper emphasizes the importance of universities, schools and teachers working together to conduct meaningful research and apply current knowledge in the field of education. 相似文献
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Dragana Milutinovi? Ilija Andrijevi? Milijana Li?ina Ljiljana Andrijevi? 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2015,25(3):401-409