High prevalence of depressive symptoms was found in patients with silicosis. Respiratory symptoms, physical function and pulmonary functions were associated with depressive symptoms. Our findings provide evidence for physicians to screen for depressive symptoms in patients with silicosis.
The traditional baseball instruction strategies were mainly conducted by the instructors with oral explanation and exemplifi cation while students had to improve their performance in athletic activities through continuous practice. During the learning process of athletic skills, students oftentimes posed less confi dence due to unskilled body movement resulting in lower achievement sense. Finally, they started to reject the engagement in relevant athletic activities and even never practice anymore. Therefore, this research aimed to explore the infl uence on the learning motivation and the performance of athletic skills made by students in the conventionally instructive mode by introducing the Computer-Aided Design (CAD) instruction strategies of the kinect baseball learning system. Research results indicated: (1) after the kinect baseball learning system was introduced into instruction, it positively affected the learning motivation of students; (2) after the kinect baseball learning system was introduced into instruction, it positively affected the performance of athletic skills of students.
Fault-tolerance is an important research topic in the study of distributed systems. In a distributed system, cooperating tasks must achieve an agreement. This is to cope with the influence of faulty components. Reaching a common agreement in the presence of faults before performing certain tasks is essential. Nowadays, network bandwidth and hardware technology are developing rapidly, resulting in the vigorous development of the internet. However, cloud computing, an internet-based development in which dynamically scalable and often virtualized resources are provided as a service over the internet has become a significant issue. In addition, the Byzantine Agreement (BA) problem is a fundamental problem in fault-tolerant distribute systems. In previous studies, the BA algorithm was used in traditional network topology. However, this algorithm does not perform well in dynamically changing networks. To enhance fault-tolerance, a new protocol VSACS (virtual subnet agreement of cloud storage) is proposed to solve the BA problem in this study. VSACS uses the minimum number of message exchange rounds to make all correct processors agree on a common value and can tolerate the maximum number of allowable faulty components.
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