High performance computing applications with data-driven communication and computation characteristics require synchronization routines in the form of eureka, barrier, or termination synchronization. In this paper we consider termination synchronization for two different execution models, the AP and the APS model. In the AP model, processors are either active or passive and a passive processor ...

Recent work has highlighted the potential benefits of exploiting ellipsoidal uncertainty set based robust Capon beamformer (RCB) techniques in passive sonar. Regrettably, the computational complexity of forming RCB weights is cubic in the number of adaptive degrees of freedom, which is often prohibitive in practice. For this reason, several low-complexity techniques for computing RCB weights, o...

The aim of this laboratory study was to evaluate effects of active and passive pauses and investigate the distribution of the trapezius surface electromyographic (SEMG) activity during computer mouse work. Twelve healthy male subjects performed four sessions of computer work for 10 min in one day, with passive (relax) and active (30% maximum voluntary contraction of shoulder elevation) pauses g...

We consider two termination detection models arising in parallel applications, the APS and the AP model. In the AP model, processors are either active or passive and a passive processor can be made active. In the APS model, processors can also be in a server state. A passive processor can enter the server state, but does not become active again. We describe and analyze algorithms for both model...

Striated muscles across phyla share a highly conserved sarcomere design yet exhibit broad diversity in contractile velocity, force, power output, and efficiency. Insect asynchronous flight muscles are characterized by high-frequency contraction, endurance, and high-power output. These muscles have evolved an enhanced delayed force response to stretch that is largely responsible for their enhanc...

Nurses exposed to high nursing stress report no health complaints as long as they have high coping abilities. The purpose of this study was to investigate coping styles in relation to the health status and work environment of Norwegian and Dutch hospital nurses. This comparative study included a random sample of 5400 Norwegian nurses and a convenience sample of 588 Dutch nurses. Coping, health,...

We give a simple and intuitive proof that the only states which are completely passive, i.e. those states from which work cannot be extracted even with infinitely many copies, are Gibbs states at positive temperatures. The proof makes use of the idea of virtual temperatures, i.e. the association of temperatures to transitions. We show that (i) passive states are those where every transition is ...

We evaluated CO levels as an index of cigarette smoke in the work place and analyzed diary entries on respiratory symptoms, eye irritation, chest colds and lost days from work due to respiratory illness in 40 passive smokers (nonsmokers chronically exposed to tobacco smoke in the work place) and 40 control subjects (nonsmokers not exposed to tobacco smoke in the work place) matched for age and ...

This paper develops a technique for the design of haptic systems that guarantees the absence of oscillations. Valid components of the haptic system are general devices, virtual couplings and virtual environments, linear or nonlinear, however the current work focuses on linear components. Once developed, the method will be applied to a haptic system to investigate stability conditions for passiv...

I read with great interest the special report, “The health risks of passive smoking” (Chest 1983; 84:90-5). The nonsmokers’ rights movements have little power in Japan at present. In many cases, Japanese smokers themselves should be chastised for their smoking habits. They smoke in public, on trains, and even in the office at work. The harmful effects of passive smoking on nonsmokers do not app...