objective: the aim of this study was to find out the prevalence of protein energy malnutrition(pem) by anthropometric measurements in preschool children of tribal community of chhattisgarh. material and methods: a total of 449 children [237 boys and 212 girls] from 286 families were selected randomly. anthropometric measurements were done as per standard protocol. the level of underweight, stun...

background and purpose :cost-benefit equations is one of the most important by of gnp and a training a sustainable development as designated by professionals of occupational health .therefore ‚ drivers as a forgotten index in sustainable development and its effect on community health. methods & material : this descriptive analytical study involved the statistical community of 55000 vehicles in ...

In this research the simulation of an air independent Proton Exchange Membrane Fuel Cell (PEMFC) propulsion system was taken into consideration. The system consists of several parts including PEM fuel cell stack, metal hydride and liquid oxygen (LOX) tanks, and also pre-heaters of oxygen and hydrogen gases along with other heat exchangers, to ensure proper operation of system. The heat recovery...

We propose a new performance metric based on computational action. We examine work as it evolves in time and compute computational action as the integral of the work function over time. We compare the action generated at less than full power with the action that could have been generated at full power. We claim that the goal of performance optimization is to minimize lost, or wasted, action. We...

BACKGROUND Rising health care costs and emphasis on value have placed the onus of reducing healthcare costs on the surgeon. METHODS Financial data from 3,973 hip, knee, and shoulder arthroplasties performed at a physician owned orthopedic hospital was retrospectively reviewed over a two-year period. A wasted implant financial report was posted starting the second year of the study. Each surge...