منابع مشابه
United Nations Food and Agriculture Organization United Nations
Termites are the most important soil fauna in the Sahelian zone of Africa, intensely interacting with the soil. Both the biotic and abiotic state of the soil affect the termite population and activity. The construction by termites of nests, gallery systems or sheetings from soil or from a mixture of soil and other material within the soil horizons or on the soil surface affect the physical and ...
متن کاملA framework for evaluating the impact of the United Nations fellowship programmes
The United Nations (UN) System's agencies have been criticized for not adequately assessing the impact of their training and fellowship programmes. Critics point out that beyond documentation of the number of fellows that underwent training, and their immediate reaction to the experience, it is necessary to ascertain that fellows are using what they have learned, and most importantly that their...
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ژورنال
عنوان ژورنال: Food and Nutrition Bulletin
سال: 1978
ISSN: 0379-5721,1564-8265
DOI: 10.1177/156482657800100106