usage of inputs is one of the most important factors affecting agricultural production variations. thus, in the evaluation of production function, it is reasonable to consider the effects of inputs usage on the production fluctuation. east azerbaijan province is one of the five major producing in iran and tabriz plain and the most important region of the province for onion production. the main ...

background in many parts of the world, ongoing deficiencies in health systems compromise the delivery of health interventions. the world health organization (who) identified four functions that health systems need to perform to achieve their goals: efforts to strengthen health systems focus on the way these functions are carried out. while a number of studies on health systems functions have be...

A framework is developed to analyse the impact of the distribution of income on individual health and health inequality, with individual health modelled as a function of income and the distribution of income. It is demonstrated that the impact of income inequality can generate non-concave health production functions resulting in a non-concave health production possibility frontier. In this cont...

Diseases of the lower respiratory tract of sheep are not considered a serious cause of lost productivity in Australian flocks because of the generally sporadic nature of serious respiratory disease and the sub-clinical nature of most cases of respiratory infection. The extensive conditions under which Australian sheep are usually managed do not favour transmission of pneumonic infectious agents...

this paper is a survey of recent contributions to and developments in the relationship between efficiency and productivity via the production function. the objective is to provide a brief discussion on data and on the methods of measuring efficiency and productivity. first, we introduce the reader to the measurement of partial and total factor productivity in the context of static and firm - sp...

for evaluation of efficiency and yield per surface unit with using the 56 sugar beet producer countries data in year 2005 an econometric model based on cols method has presented. with this model maximum sugar beet production efficiencies considering the harvested area and annual rainfall measure and level of mechanization has been determined. in total iran with production efficiency 0.43 is in ...

introduction: multiple sclerosis (ms) is generally known as a manageable but not yet curable autoimmune disease affecting central nervous system. a potential therapeutic approach should possess several properties: prevent immune system from damaging the brain and spinal cord, promote differentiation of oligodendrocyte progenitor cells (opcs) into mature oligodendrocytes to produce myelin, preve...

most regions of iran are confronted with inadequate supply and excessive demand of water in agriculture sector mainly resulting from a high difference between water providing cost and its price. coping with such a challenge needs to determine the water price based on the economic principles and its value in agricultural production. the aim of this study was to determine the economic value of th...