background: work-related musculoskeletal disorders are the most important problems in the health workforce. these discomforts cause many working days losses, increase absenteeism from work, and impose annual economic costs. awkward posture is the most important factor among the risk factors for work-related musculoskeletal disorders. this study aimed at implementing an interventional ergonomic ...

Posture is usually defined as the relative arrangement of parts body. It was observed that school teachers worked continuously in one posture for long hours. Constantly, they suffered from discomfort different their body, especially shoulders, knees, back, lower and upper which mainly prevent them continuing work. Aim: The purpose this study to assess postural using virtual pedagogy. With backg...

Abstract Field experiments were conducted in Al-Muthanna Province, Iraq order to evaluate the Body parts discomfort score and physiological cost of tractor operator during tillage operation while using mould board plough. Three subjects represented 50 th percentile their population chosen for this study. We used Corlett Bishop Technique degree various body parts. According findings, both BPDS H...

El análisis ergonómico de la estación y actividad laboral identifica factores riesgo para los trabajadores, así como enfermedades trabajo potenciales es base el diseño puestos ergonómicos. En presente se evaluó postural al que están expuestos seis trabajadores del área tapicería en una fábrica muebles ciudad Delicias, Chihuahua, México. Se realizó un estudio preliminar a través Lista Identifica...

We defend pluralism in mathematics, and in particular Errett Bishop's constructive approach to mathematics, on pragmatic grounds, avoiding the philosophical issues which have dissuaded many mathematicians from taking it seriously. We also explain the computational value of interval arithmetic.

for adaptation to the local mutualist in Medicago lupulina 2 Tia L. Harrison*, Corlett W. Wood*, Isabela L. Borges, and John R. Stinchcombe 3 4 1 Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario 5 M5S3B2, Canada 6 2 Centre for Genome Evolution and Function, University of Toronto, Toronto, Ontario, 7 M5S3B2, Canada 8 * These authors contributed equally to t...

The lever-operated knapsack sprayer, a manually operated piece of equipment, is widely used by Indian farmers for the application of agricultural chemicals. The study reported here is an ergonomics evaluation of one model of this type of sprayer. Data on 18 body dimensions and the shape of the back were collected for 10 subjects and their relevance in sprayer design are discussed. During the op...

We compare experimental melting curves of short heterogeneous DNA oligomers with theoretical curves derived from statistical mechanics. Partition functions are computed with the one-dimensional Peyrard-Bishop (PB) Hamiltonian, already used in the study of the melting of long DNA chains. Working with short chains we take into account, in the computations, not only the breaking of the interstrand...