the predator-prey model with stage structure for predator is generalized in the context of ecoepidemiology, where the prey population is infected by a microparasite and the predator completely avoids consuming the infected prey. the intraspecific competition of infected prey is considered. all the equilibria are characterized and the existence of a hopf bifurcation at the coexistence equilibriu...

the development of optimization and mathematical models for closed loop supply chain (clsc) design has attracted considerable interest over the past decades. however, the uncertainties that are inherent in the network design and the complex interactions among various uncertain parameters are challenging the capabilities of the developed tools. the aim of this paper, therefore, is to propose a n...

background the invention of central venous catheters (cvc) for hemodialysis (hd), brought about a fundamental change in the treatment of patients who needed hd, from the late 1970’s till the present time. nowadays the use of cvc is a common medical procedure. increasing use of these methods necessitates clarification of the exact nature of the effects, and potential complications for surgeons. ...

conclusions the administration of curcumin in patients undergoing dialysis had no positive effects on enhancing lvef and lv function. further research is required to shed sufficient light on this issue. results the mean age was 44.2 ± 13.4 years for the curcumin group and 45.4 ± 6.2 years for the placebo group. the study population comprised 22 male and 13 female patients. there were no signifi...

conclusions in this study, topical application of sweet almond oil, which was not followed by any specific complications, was able to significantly reduce the uremic pruritus in hemodialysis patients; however, these findings require further studies. methods this study is a randomized clinical trial research. the study population consisted of patients referred in 2013 to the hd ward of shahid be...

background: colorectal cancer is a common and lethal disease with various distribution of incidence in different part of the world and it is known as the third most common cause of cancer death in the world. since several studies in the world represented different survival rates for colorectal cancer in this study we aimed to determine the survival of a group of iranian patients and some relate...

conclusions the most important factor in diagnosis is physician’s attention and clinical experience with this condition and using irlssg. results two major theories are developed regarding the pathophysiology of rls. the first one concerns central nervous system dopamine imbalance and the second one concerns intracellular iron dysregulation. the most common used pharmacologic agents in treatmen...

Two-stage chemical deposition (TSCD) technique is used to produce ZnO, Mn2O3 and NiO films on soda-lime glass (SL-G) from an aqueous solution of zinc, manganese and nickel complex, respectively. The TSCD method enables the deposition of metal oxide thin films with a thickness which can be controlled during the preparation procedure. The ZnO, Mn2O3 and NiO thin films were polycrystalline films w...

We study the impact of new information about food safety on subjects’ willingnessto-pay for food products, in an experimental setting. We elicit prices using either a second price auction or the Becker-DeGroot-Marschak procedure. There are three stages of bidding. In stage 1, subjects bid for products without any information. In stage 2, public information about health impact is provided. In st...