When faced with a fly ball approaching along the sagittal plane, fielders need information for the control of their running to the interception location. This information could be available in the initial part of the ball trajectory, such that the interception location can be predicted from its initial conditions. Alternatively, such predictive information is not available, and running to the i...

A technique to study the dynamics of solving of a research task is suggested. The research task was based on specially developed software RightWrong Responder (RWR), with the participants having to reveal the response logic of the program. The participants interacted with the program in the form of a semi-binary dialogue, which implies the feedback responses of only two kinds “right” or “wrong”...

The optical acceleration cancelation (OAC) strategy, based on Chapman's (1968) analysis of the outfielder problem, has been the dominant account for the control of running to intercept fly balls approaching head on. According to the OAC strategy, outfielders will arrive at the interception location just in time to catch the ball when they keep optical acceleration zero. However, the affordance ...

Child running and jumping sound are one of the major noise sources in heavy structured apartment building. It was reported that physical characteristics of rubber ball (heavy/soft impact sound) was similar with child's running and jumping. As a standard impact source, rubber ball was standardized in ISO 10140 series and ISO 16283-2. However, evaluation method of rubber ball was not proposed in ...

This paper presents a probabilistic method for correspondence matching with a framework of the random walk with restart (RWR). The matching cost is reformulated as a corresponding probability, which enables the RWR to be utilized for matching the correspondences. There are mainly two advantages in our method. First, the proposed method guarantees the non-trivial steady-state solution of a given...

A large scale analysis of gene expression data, performed by Segal and colleagues, identified sets of genes named Cancer Modules (CMs), involved in the onset and progression of cancer. By using functional interaction network data derived from different sources of biomolecular information, we show that random walks and label propagation algorithms are able to correctly rank genes with respect to...

In tennis, a high ball velocity and a fast run toward the net are key features to successful performance of "serve-and-volley" players. For the serve, tennis players can use two techniques: the foot-up (FU) or foot-back (FB) technique. The aim of this study was to determine if the running time toward the net after the serve and the ball velocity (V(ball)) vary between these two techniques. More...

Tujuan penelitian ini untuk mengetahui pengaruh latihan lari zig zag terhadap kemampuan menggiring dalam cabang olahraga sepak bola. Penelitian menggunakan teknik eksperimen pendekatan quasi eksperiment dengan desain One Group Pretest posttest design. Populasi merupakan seluruh siswa kelas VIII SMP Negeri 1 Tilongkabila, jumlah 183 siswa. Sampel adalah 20 Siswa yang diambil Purposive sampling s...