abstract Parallel programs are frequently non-deterministic, meaning they can give diierent results when provided the same input. These diierent results arise because variations in the timing of the multiple threads cause the threads to access shared resources in diierent orders. The phenomena that cause the non-deterministic behavior have been (and continue to be) variously referred to as acce...

Background The aim of the present study was to compare the amount of the smear layer remaining in prepared root canals with different protocols of Bio RaCe files and XP-endo Finisher file (XPF) in association with 17% EDTA and sodium hypochlorite solution. Material and Methods A total of 68 extracted single-rooted teeth were randomly divided into 4 experimental groups (n=14) and two control g...

This study aimed to investigate the relationship between race horse breed and the frequency of limb injuries through the time of training and racing. The study population consisted of 4042 Thoroughbred and 2553 Arabian horses raced at Warsaw race Track, from 2000 to 2008. Among these horses, 94 Thoroughbreds and 32 Arabians had different limb injuries. Based on the achieved results, it is possi...

Let G = (V, E) be a graph. A function g : V → [0, 1] is called a global dominating function (GDF ) of G, if for every v ∈ V, g(N [v]) = ∑ u∈N [v] g(u) ≥ 1 and g(N(v)) = ∑ u/ ∈N(v) g(u) ≥ 1. A GDF g of a graph G is called minimal (MGDF ) if for all functions f : V → [0, 1] such that f ≤ g and f(v) 6= g(v) for at least one v ∈ V , f is not a GDF . The fractional global domination number γfg(G) is...

One of the key issues in practical speech recognition is to achieve robust gender identification. Most conventional gender identification approaches use relevant features derived from the magnitude spectrum. In this paper, we propose a novel gender identification method using a group delay function (GDF). Based on the statistical analysis of the GDF, it is found that the GDF is an effective fea...

BACKGROUND Self-tests, tests on body materials to detect medical conditions, are widely available to the general public. Self-testing does have advantages as well as disadvantages, and the debate on whether self-testing should be encouraged or rather discouraged is still ongoing. One of the concerns is whether consumers have sufficient knowledge to perform the test and interpret the results. An...

introduction: pulpectomy is the preferred treatment for restorable primary teeth with symptomatic irreversible pulpitis or periradicular lesion. considering the rather new application of rotary files for pulpectomy of primary teeth, the aim of this study was to compare the cleaning efficacy and instrumentation time of hand k-files and mtwo rotary system for preparation of human primary molars. ...