432 research outputs found
The Effectiveness of Training Methods to Improve Dribbling Learning Outcomes in Class XI Students of Senior High School Kristen Dobo
The purpose of the study was to apply the exercise method in physical education learning to improve dribbling learning outcomes in class XI of SMA Kristen Dobo, Maluku. The research method used is quantitative with classroom action research design carried out 3 times in cycle I and cycle II through the stages of planning, implementation, observation, and reflection. The population of this study was class XI MIPA, SMA Kristen Dobo and the sample used was 56 students. The sampling technique used cluster sampling. Data collection on the results of learning to dribble in football games was analyzed qualitatively and quantitatively. The results showed that the use of training methods can improve the learning outcomes of dribbling. There is a significant increase in learning outcomes of dribbling in soccer games by 50% (completed) and increasing in the second cycle with a percentage of 88% (completed). Through the training method in physical education learning, students are more active and provide a positive response to the learning process so that students more easily understand dribbling well
Carbon and Hydrogen Isotopes as Tracers of Methane Dynamic in Wetlands
This work presents a review of the main processes leading to the production and sinking of methane in wetlands and how they affect the stable isotope composition of carbon and hydrogen. Isotope fractionation factors associated to diffusion, ebullition, bacterial oxidation, etc., have been gathered from relevant literature in an intent of providing researchers in this thematic with practical procedures and tools for the interpretation of experimental data. Also it is presented guidelines of the most reliable field and laboratory methods used at present for the correct sampling and analyzing methane in different stages of occurrence, as well the most common tools used in their interpretation. Each statement is fully referenced to a long updated list of publications.Fil: Sanci, Romina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Oficina de CoordinaciĂłn Administrativa Ciudad Universitaria. Instituto de GeocronologĂa y GeologĂa Isotopica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de GeocronologĂa y GeologĂa Isotopica; ArgentinaFil: Panarello, Hector Osvaldo. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Oficina de CoordinaciĂłn Administrativa Ciudad Universitaria. Instituto de GeocronologĂa y GeologĂa Isotopica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de GeocronologĂa y GeologĂa Isotopica; Argentin
Robust capacity planning for sterilisation department of a hospital
Sterile services departments are special units designed to perform sterilisation operations in an efficient way within a hospital. The delays in sterilisation services cause significant disruptions on surgery schedules and bed management. To prevent the delays, an upper time limit can be imposed on the time spent in the sterilisation services. In this paper, we propose a mathematical modelling approach for the optimum capacity planning of a sterilisation service unit considering the uncertainties in the sterilisation process. The model aims to find the optimum capacity on four tandem steps of the sterilisation whilst at the same time minimising the total cost and keeping the maximum time in the system below a limit. Assuming general distributions for service and interarrival times, an approximation structure based on robust optimisation is used to formulate the maximum time spent in the system. We analysed the structural property of the resulting model and found that the relaxed version of the model is convex. The real data from a large sterilisation services unit is used for computational experiments. The results indicated that the approximation fits well against the simulated maximum time in the system. Other experiments revealed that an upper limit of 7 hours for the sterilisation services balances the cost vs. robustness trade-off
An integer L-shaped algorithm for the integrated location and network restoration problem in disaster relief
CO2 and CH4 Flux Measurements from Landfills - A Case Study: GualeguaychĂş Municipal Landfill, Entre RĂos Province, Argentina
Correlation Among Math Anxiety, Attitudes Toward Math, and Math Achievement in Grade 9 Students: Relationships Across Gender
This research evaluated (a) the correlation between math anxiety, math attitudes, and achievement in math and (b) comparison among these variables in terms of gender among grade 9 students in a high school located in southern Ontario. Data were compiled from participant responses to the Attitudes Toward Math Inventory (ATMI) and the Math Anxiety Rating Scale for Adolescents (MARS-A), and achievement data were gathered from participants’ grade 9 academic math course marks and the EQAO Grade 9 Assessment of Mathematics. Nonparametric tests were conducted to determine whether there were relationships between the variables and to explore whether gender differences in anxiety, attitudes, and achievement existed for this sample. Results indicated that math anxiety was not related to math achievement but was a strong correlate of attitudes toward math. A strong positive relationship was found between math attitudes and achievement in math. Specifically, self-confidence in math, enjoyment of math, value of math, and motivation were all positive correlates of achievement in math. Also, results for gender comparisons were nonsignificant, indicating that gender differences in math anxiety, math attitudes, and math achievement scores were not prevalent in this group of grade 9 students. Therefore, attitudes toward math were considered to be a stronger predictor of performance than math anxiety or gender for this group
Paradox and policy in adolescent health
APHCRI Conversations was a regular program of presentations held at the Department of Health to facilitate exchange between APHCRI Network researchers and Department policymakers. Topics are developed jointly with the Department of Health and involve a range of speakers from APHCRI, including CRE invited experts, CRE Chief Investigators and stream project Chief Investigator
Toward Youth Friendly Services: A Survey of Young People in Primary Care
Background: The World Health Organization encourages the development of youth friendly services, yet little is known on how youth currently present in general practice. Objective: To describe the perspectives, expectations, and service receipt of young people presenting to family doctors to inform the development of youth friendly services. Design: Cross-sectional survey. Participants and measurements: Consecutive young people attending 26 randomly selected practices were recruited in the waiting rooms. Standardized instruments were used to interview them before their consultation. Results: Of 501 young people who were approached, 450 participated (91% participation rate). Most had respiratory (26%) or dermatological complaints (18%). When asked to assess their health status, 59% perceived they had neither a physical nor a mental illness. However, 43% stated they had fears about their health problem and 1 in 5 feared it could be life-threatening. Although only 10% presented with psychological complaints, 24% perceived they currently had a mental illness. The most common expectations were treatment (50%) and good communication (42%). Most youth were prescribed medication (60%), but 40% of those who received a prescription had not expected to receive a treatment. A follow-up appointment was offered to 57% of participants. Conclusions: This study identifies a gap between young people's perception of illness and their presentations to family doctors. It also highlights unexpected fears, and a mismatch between expectations and service receipt. These findings have implications for family medicine training and for clinical practice. They should inform the development of youth friendly service
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