The problem of asymptotically optimum watermark detection and embedding has been addressed in a recent paper by Merhav and Sabbag where the optimality criterion corresponds to the maximization of the false negative error exponent for a fixed false positive error exponent. In particular Merhav and Sabbag derive the optimum detection rule under the assumption that the detector relies on the secon...

Even the simplest advection-diffusion problems can exhibit multiple time scales. This means that robust variable step time integrators are a prerequisite if such problems are to be efficiently solved computationally. The performance of the second order trapezoid rule using an explicit Adams–Bashforth method for error control is assessed in this work. This combination is particularly well suited...

The present study is an attempt to investigate conversational repair phenomenon in Persian dramatic discourse and it tries to check the presence of any predominant preference for employing a specific type of repair rather than the others in the context of Persian drama. To reach the aforementioned purpose, Schegloff, Jefferson, and Sacks’s (1977) framework has been adopted and applied to Akbar ...

BACKGROUND/AIMS To compare mortality and cardiovascular risk in elderly dialysis patients with diabetes under two clinical strategies of anemia correction: maintaining hematocrit (Hct) between 34.5 and < 39.0% (high Hct strategy), and between 30.0 and <34.5% (low Hct strategy) using intravenous alpha epoetin. METHODS Observational data were used to emulate a randomized trial in which diabetic...

background: low attention to dairy product consumptions and high intake of junk foods and bakery products might be related to high prevalence of chronic diseases because of their fat content and fatty acid composition.  objective: in this study we investigated the kind and amount of fatty acid content in iranian junk foods, dairy, and bakery products materials and methods: some common brands of...

background: multiple sclerosis (ms) is a common inflammatory - degenerative disease of myelin sheet of central nervous system that affects more young people. these patients show some degrees of cognition problems such as memory and processing disorders. the aim of this study was to evaluate the speed processing ability by word finding assessment in three categories include fruits, animals and o...

1024x768 background: sedentary lifestyles, along with diets low in fruits and vegetables, complex carbohydrates and high in fat and total energy are increasing among adolescents. these unhealthy behaviors associated with obesity, type 2 diabetes, hypertension, and heart disease. healthful dietary behaviors, such as fruit and vegetable consumption among adolescents had been reported as inadequat...

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background: the aim of research was to study spiral family implant by finite element analysis (fea) inserted in different bone qualities connected with abutments of different angulations. methods: the biomechanical behaviour of 4.2 × 13 mm dental implants, connecting screw, straight and 15° and 25° angulated abutments subj...