نتایج جستجو برای: improving economical programs
تعداد نتایج: 450417 فیلتر نتایج به سال:
There is little agreement among governments, institutions, scientists and food activists as to how to best tackle the challenging issues of health and sustainability in the food sector. This essay discusses the potential of school meals as a platform to promote healthy and sustainable food behavior. School meal programs are of particular interest for improving public diet because they reach chi...
Eating behaviors among a large population of children are studied as a dynamic process driven by nonlinear interactions in the sociocultural school environment. The impact of food association learning on diet dynamics, inspired by a pilot study conducted among Arizona children in Pre-Kindergarten to 8th grades, is used to build simple population-level learning models. Qualitatively, mathematica...
each community , due to differences in climatical , social economical and cultural peculiarities has a different sort of public health problems . in planning and executing public health programs , health workers should first be concerned with the problems of the locality and then with the program.
this research has been taken among the students of high school in karaj city during the years 1391 and 1392. this is a survey research and data gathering is through questionnaires. studying the “an analysis of students’ tendency toward non-native reference groups in karaj”. the questionnaire was distributed among 260 of these students who were chosen through multi step cluster sampling. conside...
Abstract Increasing the mining depth at Praid Saline and implicitly state of stresses strains determines an increase in dimensions resistance structures (pillars ceilings). Furthermore, seismic effect generated by detonation explosives contributes to degradation structures. In order reduce destructive drilling-blasting technology a proposal is made for implementation mechanized salt cutting whi...
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