We read the article by Hamza et al with great interest [1]. Th e authors have investigated the risk factors and whether antibiotic prophylaxis helps prevent recurrence of cellulitis in cirrhosis . We agree with the authors that bacterial infections are frequent in cirrhotic patients because of their defective defense mechanisms and that these infections precipitate decompensation of cirrhosis. ...

background: in order to provide guidance on the efficient allocation of health resources when handling public health emergencies in the future, the study evaluated the h1n1 influenza prevention and control program in hubei province of china using cost-benefit analysis. methods: the costs measured the resources consumed and other expenses incurred in the prevention and control of h1n1. the assum...

conclusions safe water supply and adequate sanitation and hygiene are the important routes for the control and prevention of cholera infection. results cholera is a rare disease in industrialized countries; but, is still common in other parts of the world, including the indian subcontinent, sub-saharan africa, and latin and central american countries (like haiti). symptoms begin with a sudden o...

abstract it is becoming evident that oral hormonal contraceptives –besides being well established contraceptives – seem to become important medications for many functional or organic disturbances. so far, clinical effectiveness has been shown for treatment as well as prevention of menstrual bleeding disorders and menstrual-related pain symptoms. also this is true for premenstrual syndrome (pms)...

nuclear power reactors are, in nature nonlinear and time varying. these characteristics must be considered, if large power variations occur in their working regime. in this paper a robust optimal gain scheduling controller for regulating the power of a nuclear reactor has been designed and simulated. the proposed controller is capable of regulating power levels in a wide power range (10% to 100...

in this paper, first the available single charting methods, which have been proposed to detect simultaneous shifts in a single process mean and variance, are reviewed. then, by designing proper simulation studies these methods are evaluated in terms of in-control and out-ofcontrol average run length criteria (arl). the results of these simulation experiments show that the ewma and ewms methods ...

background: appropriate management of chronic conditions requires full knowledge of the situation-related complications and preventive behaviors, which can improve or eliminate these complications. it is also essential to evaluate treatment methods regularly, with respect to the features of each social group and the available resources. objectives: this study aimed to evaluate the level of know...