منابع مشابه
Ecology of Vertebrate Nutrition
All vertebrates require certain amounts of energy, protein and ‘essential’ nutrients. Dietary sources of energy include carbohydrates, protein and fat. Dietary protein is necessary for satisfying an animal’s protein requirements. Certain dietary nutrients are classified as ‘essential’ because they are required for synthesis or functioning of crucial chemical compounds, yet they cannot be synthe...
متن کاملPublic Health Perspectives on Water Systems and Ecology
P. Speldewinde Centre of Excellence in Natural Resource Management, The University of Western Australia, Albany, Australia e-mail: [email protected] Abstract Human health is directly linked to ecosystem functioning, including the dynamics within wetlands. Wetlands can act to initiate or mitigate biological and chemical contamination. In order to assess the potential health risk, inve...
متن کاملthe impact of e-readiness on ec success in public sector in iran the impact of e-readiness on ec success in public sector in iran
acknowledge the importance of e-commerce to their countries and to survival of their businesses and in creating and encouraging an atmosphere for the wide adoption and success of e-commerce in the long term. the investment for implementing e-commerce in the public sector is one of the areas which is focused in government‘s action plan for cross-disciplinary it development and e-readiness in go...
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ژورنال
عنوان ژورنال: Public Health Reports (1896-1970)
سال: 1970
ISSN: 0094-6214
DOI: 10.2307/4593802