Achieving dependability in large scale infrastructure systems always requires making intelligent tradeoffs. This paper proposes QAPSL, a systematic approach to making such tradeoffs with regards to application state management. We identify Quality, Availability, Performance, Security, and Lifetime as a set of fundamental state properties that can be traded against each other. We then describe a...

Among all components of a grid or peer-to-peer application, the resources management is unavoidable. Indeed, new resources like computational power or storage capacity must be quickly and efficiently integrated. This management can be achieved either by a fully centralized way (BOINC ) or by a hierarchical way (Globus, DIET ). In the latter case, there is a greater flexibility and a greater sca...

INTRODUCTION Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia with a one in four lifetime risk in adults over the age of forty. Traditionally, AF management has focused on the three pillars of rate control, rhythm control and appropriate anticoagulation to reduce stroke risk. More recently, the importance of cardiovascular risk factor management in AF has emerged as a fo...

Comparison of the theory of Rabi oscillations with experiment [M. Wilczewski and M. Czachor, Phys. Rev. A 79, 033836 (2009)] suggests that cavity lifetime parameters obtained in measurements with many photons may be much smaller than those applicable to almost vacuum states of light. In this context, we show that the conclusion remains unchanged even if one takes a more realistic description of...

A fundamental problem with distributed applications is how to map activities such as computation or data transfer onto a set of resources that will meet the application’s requirement for performance, cost, security, or other quality of service metrics. An application or client must engage in a multi-phase negotiation process with resource managers, as it discovers, reserves, acquires, configure...

Post-traumatic stress disorder (PTSD) is a common mental health condition among military veterans, and research indicates that lifetime prevalence rates of PTSD among military veterans are higher than that of the general population (SAMHSA, 2007). The treatment of PTSD is often complicated by issues of comorbidity, such as substance use disorders, and treatment outcomes are poorer when comorbid...

NDT is mainly discussed as an engineering technology to detect, classify and size material imperfections, called material defects. Lattice defects and microstructure inhomogeneities like vacancies, dissolved atoms dislocations and precipitations are normally not discussed as defects but they are influence parameters which mainly predict the macroscopic properties, the physical properties as wel...