the price of water in agriculture plays an important role in the water allocation management. therefore, the optimum strategies of cropping pattern could be designed when water price analysis are considered in a predetermined economic framework. in the present study, a programming model was developed using the genetic algorithm for optimal water allocation in the eastern north of khuzestan prov...

The Gibberella fujikuroi species complex with Fusarium anamorphs is the causal of diverse diseases of many important plants. Many of the known species in this species complex produce a wide range of secondary metabolites. In this study, morphological characteristics of 46 isolates from rice, maize, sugarcane and onion and phylogenetic relationships of 22 isolates on the basis of ITS1-5.8S-ITS2 ...

Background and Objectives: Public– Private Partnership can increase the hospital efficiency as the main goal of a good management in healthcare. Hospital efficiency in utilizing resources can be measured through specific indices and analysis of data, after which we can expect to improve productivity in the system. Analysis of performance indices can be useful to achieve to the ...

This paper reports on variation in leaf area index (L) in five Eucalyptus globulus Labill. plantations in response to application of nitrogen, thinning at age 2 years and variation in climate wetness index (the ratio of rainfall to potential evaporation). Observed L is compared with: (i) L predicted to optimize net primary productivity for a given average annual temperature, annual water use an...

The purpose of the present work is to classify the 31 cities of Rio de Janeiro State in Brazil based on their energy consumption. The point is to search new criteria to cluster the users in order to establish, in a more homogeneous way, indices of energy quality. Moreover, it aims to bring about a framework from which it will be possible to determine the relative efficiency among the cities of ...

BACKGROUND The fundamental determinant of the natural history of Chagas' disease is cardiac involvement. METHODS AND RESULTS We studied 104 male patients with congestive heart failure due to Chagas' disease to estimate the survival distribution function and to evaluate age, functional class (FC), maximal oxygen consumption (VO2max), and ejection fraction (EF) as predictors of survival. Statis...

people always notice to other’s ideas and judgments about themselves. personnel also use different tactics of impression management in different situations, to reach their purposes in organization. one of the personnel's purposes is the improvement of the organization performance. performance measurement of an organization is the process of quantifying the efficiency and effectiveness of i...

Background: This research studied the effect of UV light on pentachlorophenol (PCP) removal in the electro-Fenton (EF) process. Methods: PCP was used as the pollutant in this study. The effects of Fenton’s reagent, i.e. hydrogen peroxide concentration, solution pH, and treatment time by EF (EF) and photoelectro-Fenton (PEF) processes, were studied to determine rates of PCP removal. The r...

Negative association for a family of random variables (Xi) means that for any coordinate–wise increasing functions f, g we have Ef(Xi1 , . . . , Xik )g(Xj1 , . . . , Xjl ) ≤ Ef(Xi1 , . . . , Xik )Eg(Xj1 , . . . , Xjl ) for any disjoint sets of indices (im), (jn). It is a way to indicate the negative correlation in a family of random variables. It was first introduced in 1980s in statistics, and...