abstract   introduction: balance is one of the most important contexts in ageing. improving balance in middle age can prevent falling down in elderly which impose the financial and mental costs to society. imbalance between dominant and non-dominant leg can lead to some problems. that’s way; studying effects of similar exercise on dominant and non-dominant legs of body can prevent problems caus...

Network proximity estimation is an important component in discovering and locating services and applications. With the growing number of services and service providers in the largescale Internet, accurately estimating network proximity with minimal probing overhead becomes essential for scalable deployment. Although there exist a number of network distance estimation schemes, they either rely o...

As distributed systems continue to grow in size and complexity, scalable and cost-efficient techniques are needed for performing tasks such as problem determination and fault diagnosis. In this paper, we address these tasks using probes, or test transactions, which replace traditional “passive” event-correlation techniques with a more active, real-time information-gathering approach. We provide...

In this paper, we demonstrate a technique called active probing used to study TCP implementations. Active probing treats a TCP implementation as a black box, and uses a set of procedures to probe the black box. By studying the way TCP responds to the probes, one can deduce several characteristics of the implementation. The technique is particularly useful if TCP source code is unavailable. To d...

We introduce a set of scalar fields as test fields to study the dynamical behaviors of the BTZ(Banados-Teitelboim-Zanelli) black hole. These include minimally coupled scalar, conformally coupled scalar, dilaton, and tachyon. To calculate the decay rate of the BTZ black hole, we consider both the Dirichlet boundary condition at spatial infinity and the stability condition. It turns out that the ...

AIM To compare the outcomes of surgical periodontal therapy with and without initial scaling and root planing. METHODS Twenty-four patients with severe chronic periodontitis were enrolled in this pilot, randomized controlled clinical trial. Patients were equally allocated into two treatment groups: Control group was treated with scaling and root planing, re-evaluation, followed by Modified Wi...