Successive over-relaxation (SOR) is a computationally intensive, yet extremely important iterative solver for solving linear systems. Due to recent trends of exponential growth in amount of data generated and increasing problem sizes, serial platforms have proved to be insufficient in providing the required computational power. In this paper, we present parallel implementations of red-black SOR...

IT IS UNCLEAR, but studies suggest that it should be based largely on individual risk. The American Academy of Pediatric Dentistry recommends a 6-month interval for preventive dental visits (strength of recommendation [SOR]: C, expert opinion), but a 24-month interval does not result in an increased incidence of dental caries in healthy children and young adults or increased incidence of gingiv...

Clinical evaluation and chest x-ray are recommended for asymptomatic patients with a positive purified protein derivative (PPD) test result, to exclude the slight possibility of active tuberculosis (TB). Patients with radiographic evidence of old (healed) TB infection should also undergo sputum testing (strength of recommendation [SOR]: C, expert opinion). Treatment with isoniazid (INH) monothe...

There are 3: valacyclovir, acyclovir, and topical penciclovir. valacyclovir, 2 g twice in 1 day taken during the prodromal stage of herpes labialis, reduces the episode duration and time to healing. Acyclovir, 400 mg, taken 5 times a day for 5 days, decreases the pain duration and healing time to loss of crust (strength of recommendation [sor]: a, based on randomized controlled trials [rCTs]). ...

There is no single best evidence-based approach to the diagnostic evaluation of night sweats, given the limited number of studies on the subject. A detailed history, however, does appear to be the most important initial diagnostic tool (strength of recommendation [sor]: C, based on usual practice and clinical opinion). No clinical trials have directly studied symptomatic relief of night sweats ...

Our purpose in this paper is to extend p{cyclic SOR theory to consistent singular systems and to apply the results to the solution of large scale systems arising, e.g., in queueing network problems in Markov analysis. Markov chains and queueing models lead to structured singular linear systems and are playing an increasing role in the understanding of complex phenomena arising in computer, comm...

Progesterone produces a small but significant decrease in miscarriage among pregnant women with 3 or more unexplained pregnancy losses (strength of recommendation [SOR]: A, based on a meta-analysis of 3 small randomized controlled trials [RCTs] with wide confidence intervals). Human chorionic gonadotropin (HCG) reduces the rate of recurrent pregnancy loss among women with 2 or more unexplained ...

Tests for antibodies to Epstein-Barr viral capsid antigen or Epstein-Barr nuclear antigen are the most sensitive, are highly specific, and are also the most expensive for diagnosing infectious mononucleosis (strength of recommendation [SOR]: C, based on validating cohort study). Heterophile antibody tests have similar specificity and are cheaper, but are less sensitive in children or in adults ...

Consider the linear system Ax=b where the coefficient matrix A is an M-matrix. In the present work, it is proved that the rate of convergence of the Gauss-Seidel method is faster than the mixed-type splitting and AOR (SOR) iterative methods for solving M-matrix linear systems. Furthermore, we improve the rate of convergence of the mixed-type splitting iterative method by applying a preconditio...