objectives: this study aimed to assess the effect of re-etching of desensitized dentin for five and 10 seconds on marginal microleakage of composite restorations. materials and methods: class v cavities (4x2x2mm) were prepared on the buccal surfaces of 64 third molars and randomly divided into four groups of 16. in the control group, single bond (sb) adhesive was applied after etching. in bb+sb...

frps (fiber reinforced polymer) possess many favorable characteristics suitable and applicable for construction industry when compared with steel reinforcement. there are new ideas to use frps as longitudinal or transverse reinforcement for new concrete elements particularly for bridge decks or beams. although high tensile strength of frp is main characteristic for applications at both areas, i...

The present study aspired to scrutinize the relationship among EFL learners' Self-directed Learning (SL), Resilience (RE), and Willingness to Communicate (WTC). To accomplish this purpose, 124 male and female undergraduate EFL learners, within the age range of 20 to 32, were selected through convenience sampling. These EFL learners were asked to fill in three questionnaires, namely the SL...

There has been an increasing concern about inactive drivers who would easily lead to road accidents and fatalities once return to driving. This study investigated the re-usability of traffic signs for inactive drivers with consideration of driver factors and cognitive sign features. Fifty-seven Hong Kong Chinese, who possessed a full driving license but had not driven for an extended period, co...

conclusions our study demonstrated that the b1 gene, more so than the re gene, showed positive samples and can be used to detect toxoplasmosis, although the b1 gene, in comparison to the re gene, did not show any superiority of molecular diagnosing capability. results also showed that toxoplasma molecular detection methods can be used instead of routine serological detection methods in a clinic...

thinking simultaneously of humor and battlefield is hardly expectable; however, the most genuine jokes can be seen in this very battlefield verbal culture in a simple and sensitive form which has rarely been paid attention to. this witticism can be categorized into four classes; namely, devotional, fight and martyrdom, drinking and eating, and social interactions which have the most similitude ...

In this paper, we propose five data fusion schemes for the Internet of Things (IoT) scenario,which are Relief and Perceptron (Re-P), Relief and Genetic Algorithm Particle Swarm Optimization (Re-GAPSO), Genetic Algorithm and Artificial Neural Network (GA-ANN), Rough and Perceptron (Ro-P)and Rough and GAPSO (Ro-GAPSO). All the schemes consist of four stages, including preprocessingthe data set ba...

background and purpose: coping strategies play a key role in the management of different diseases. resilience and positive emotions in patients could enhance coping strategies and reduce disease complications. this study aimed to determine the level of resilience and the associated factors in patients with coronary artery disease (cad). methods: this descriptive cross-sectional study was conduc...