A linear-programming model for use in analysis and planning of multiobjective water resources systems is described in this paper. A typical system consists of reservoirs, hydropower stations, irrigated land, artificial and navigation channels, etc., over a reach of a river or a river basin. The linear programming approach is studied and compared with other approaches: mixed integer-linear dynam...

Objective The aim of this study is to evaluate the relationship between phytoestrogen intake with endometriosis risk. MaterialsAndMethods A case-control study was conducted on 78 women with a laparoscopically confirmed diagnosis of endometriosis and on 78 normal pelvis women (as the control group). Common dietary intake was collected by a validated 147-item semi-quantitative FFQ. Calculation ty...

By considering certain factors like those mentioned by Ian Thompson (2005) in his definition of landscape, i.e. ecology, community and delight, in designing landscapes, one can find the vocation more applicable and useful. City rivers can play a very important role with regard to such values. In fact, the presence of nature and wildlife could not only be the lifeline of a city, but also a facto...

adverse lifestyle changes like rapid change in dietary habits coupled with decreased physical activity and increasing rates of alcohol and tobacco consumption can increase coronary artery disease risk factors and its mortality even higher than the rates predicted. to evaluate the role of adverse lifestyle changes factors in the causation of cad, a hospital based case-control study was conducted...

background: to determine the risk factor for acute diarrhea disease in children. methods: in the survey, 220 cases and 220 controls were involved. cases were children with loose watery feces, pathologically diagnosed as acute diarrhea by the physician, and enrolled from the emergency ward as the incident cases in dr. sheykh hospital, mashhad, northeast of iran. control group too, was enrolled f...

background: a crucial part of a case-control study is the selection of a sample of controls that represent the base-popula­tion from which cases were drawn. controls may be matched to cases by one or more potentially important confounding vari­ables, such as socioeconomic status. in the united kingdom, one method for control selection has been based on the pa­tient list of the general practice ...

introduction: diabetes mellitus (dm) is one of the most common chronic diseases in the world and the most challenging health problems of the twenty first century. this disease is common in yazd and has a high prevalence in the province. due to not available analytic study, the aim of this study was to determine the risk factors of type 2 diabetes among the adult yazd population, iran. materials...

abstractintroduction: the role of breast-feeding in protection against childhood acute leukemia is uncertain. in this study, we tested the hypothesis that breast-feeding decreases the risk of 300 patients we investigated childhood acute leukemia. materials and methods: in a case control study, we inrestigated 300 patients, aged 2±13 years, with acute leukemia, as well as 300 controls, individua...

or as the ends of a boiv are drawn together." They have a legend that it visits the country every thirty years. The epidemic arrived in Bhamo in June last, having travelled up the Irrawaddy Yalley starting in Rangoon in May and visiting Mandalay during the early part of June. It is interesting to note this following of the important trade route. It is not unlikely that the epidemic originated f...

Flood forecasting and management are one of the most important strategies necessary for water resource decision planners in combating flood problems. The Muskingum model is popular widely used applications purpose predicting routing. particle swarm optimization (PSO) methodology was to estimate coefficients nonlinear this study, comparing results with methods genetic algorithm (GA), harmony sea...