The Greatest Mistake Of My Life

https://digitalcommons.library.umaine.edu/mmb-vp-copyright/6779/thumbnail.jp

The Greatest Mistake Of My Life

https://digitalcommons.library.umaine.edu/mmb-vp-copyright/6779/thumbnail.jp

Ergonomics of single-handed pulling : a biomechanical and psychophysical assessment

Bibliography: leaves 176-189.The description of biornechanical events measured during manual materials handling (MMH) activities has been a major focus for ergonomists attempting to understand the relationships between performance factors and injury mechanisms. Pulling exertions, while being frequently observed in occupational settings, requires more attention from researchers. The purpose of this work was to elucidate the influences of task-simulated factors upon subject performance while exerting pull forces within a stationary workstation

Analisis Faktor Penyebab Kesulitan Belajar Matematika Pada Siswa Kelas V SD Negeri 94 Pekanbaru

This difficulty in learning Mathematics occurs because it is influenced by two factors, namely internal and external factors. This study aims to analyze the factors that cause difficulties in learning mathematics in fifth-grade elementary school students. This study uses a qualitative research method with a qualitative descriptive approach which is carried out in 3 stages: namely data reduction (data reduction), data presentation (data display), conclusions (verification). The participants in this study were Class V teachers and Class V students. The data collection tools were in the form of observations, interviews, and documentation. The results showed that students experienced difficulties in mathematics, namely difficulties in using arithmetic operations correctly, difficulties in understanding the language of questions, and difficulties in working on questions with many formulas. This shows that the interest and motivation of students towards mathematics are lacking so students are less interested in learning. This lack of interest may be due to the students' assumption that mathematics is a difficult subject. Based on the results of these studies, teachers should pay more attention to the difficulties experienced by students. Teachers should pay more attention to the methods used in teaching based on the material being taught so that students do not get bored quickly. Introductio

The energetics of walking on sand and grass at various speeds

This study investigated the energetics of walking on sand and grass. Fourteen adult males, participated in the study. Participants had a mean age of 34.6 years old, 72.6 kg in mass and 172.5 cm in stature, who walked at 3, 4, 5, 6 and 7 km per h on sand and grass surfaces. Physiological measures included heart rate, O2 uptake, CO2 exhalation, ventilation and relative O2 uptake using a MetaMax Ergospirometer. Speed was controlled in a methodology similar to the 'Multistage 20-m Shuttle Run Test'. Data were collected during physiological steady rate at each determined speed. A minimum of 2 h rest was enforced between randomized conditions. Results indicate that there was a significant increase (p < 0.01) in all,easured physiological indices indicative of energy expenditure when walking on sand compared to grass at 3-7 km per h, with the greatest disparity between the surfaces (ratio = 1.63 in O2 consumption at 5 km per h

Trends in Outcomes and Variation by Race and Ethnicity in Pediatric Plastic Surgery in the United States

Background:. The American College of Surgeons' National Surgical Quality Improvement Project-Pediatric Data manages a multicenter dataset for monitoring outcomes in pediatric surgical care. We explored trends in outcomes in the most frequently sampled current procedural terminology codes related to craniofacial and cleft lip and palate (CLP) surgical procedures over a 7-year period. Methods:. We used National Surgical Quality Improvement Project-Pediatric Data on 28,147 pediatric patients who underwent plastic surgical procedures between January 1, 2012, and December 31, 2018. Eighteen relevant current procedural terminology codes were selected and sorted into two procedure groups: CLP and craniofacial. For each group, we explored trends in readmission, reoperation, extended length of stay, morbidity, and racial and ethnic variation. Results:. The proportion of readmissions following CLP repair saw a significant reduction per year (from 3.6% to 1.7%). African American or Black CLP patients had significantly higher rates of readmission and extended length of stay when compared to the overall cohort. Asian and White CLP patients had significantly lower rates of experiencing an extended length of stay. For craniofacial cases, extended length of stay decreased significantly per year (from 7.7% to 2.8%). One possible driver of this change was a decrease in transfusion rates during the study period from 59% to 47%. Conclusions:. Pediatric CLP and craniofacial cases saw significant improvements in safety, as indicated by reductions in readmission and extended length of stay. Given the racial differences observed, especially among CLP patients, continued research to identify and address systems of racism in health care remains a priority