Regarding the increase in needs of human societies to agricultural products, increasing water use efficiency can lead to persistent use of limited water resources. Therefore, in this study using Data Envelopment Analysis (DEA), technical, allocative, managerial and economic efficiency and also Optimal level of inputs is surveyed in order to achieve maximum Efficiency in Marvdasht city in 20...

The effect of introducing a fifth large-scale space-time dimension to the equations of orbital dynamics was analysed in an earlier paper by the authors. The results showed good agreement with the observed flat rotation curves of galaxies. This analysis did not require the modification of Newtonian dynamics, but rather only their restatement in a five dimensional framework. The same analysis der...

In data envelopment analysis, the relative efficiency of a decision making unit (DMU) is defined as the ratio of the sum of its weighted outputs to the sum of its weighted inputs allowing the DMUs to freely allocate weights to their inputs/outputs. However, this measure may not reflect a the true efficiency of a DMU because some of its inputs/outputs may not contribute reasonably in computing t...

Performance   evaluation in regular periods is one of the ways in which organizations can   evaluate their performance as well as weak and strong points unifiedly and   precisely. These days, mathematical models are also used to evaluate the   efficiency and productivity of various units. These units are a collection of   education, research and service activities as input and output factors an...

S. Kuznets's study that the average propensity to consume is a constant value were nexpected because they denied one of the basic provisions of the Keynesian theory. This fact was called "the riddle of Kuznets".  F. Modigliani and M. Friedman, using the hypothesis of the life cycle and the concept of constant income, proposed two options that explain its solution. But models should not explain,...

conclusions the results of this study show the factors related to the return-to-work after bc treatment in working women in mashhad city, iran. these predictors should be taken into account in order to improve the patient’s life quality. background most women are diagnosed with breast cancer (bc) when they are still at the appropriate age for employment. the increasing survival rates of patient...