This article deals with stabilization and fault-tolerance. We consider two types of stabilization: the selfand the pseudostabilization. Our goal is to implement the selfand/or pseudostabilizing leader election in systems with process crashes, weak reliability, and synchrony assumptions. We try to propose, when it is possible, communication-efficient implementations. Our approach allows to obtai...

A new algorithm for large-scale nonlinear programs with box constraints is introduced. The algorithm is based on an eecient identiication technique of the active set at the solution and on a nonmonotone stabilization technique. It possesses global and superlinear convergence properties under standard, mild assumptions. A new technique for generating test problems with known characteristics is a...

qct calculations were performed to study the behavior of energized nh2oh formed by association collision of nh2 radical with oh radical. a potential energy surface that describes the behavior of the title reaction has been constructed by interpolation of ab initio data. h2o, hon, hno, nh3, o, h2no, cis or trans-honh, and h products and two vibrationally energized nh2oh and nh3o adducts were obs...

introduction: low back pain is the most common musculoskeletal complication. although there are many ways to treat low back pain, achieving a concise, simple, and compact method is required in today's industrial societies. the purpose of this study was to evaluate the effect of six weeks selected core stabilization exercises on pain and functional disability in patients with nonspecific chronic...

BACKGROUND It has been reported that arthroscopic shoulder stabilization yields higher rates of failure in contact or collision athletes as compared with open shoulder stabilization; however, this is largely based upon studies that do not employ modern, evidence-based surgical indications and techniques for arthroscopic shoulder stabilization. PURPOSE To (1) determine the pooled failure rate ...

Consider a distributed network of n nodes that is connected to a global source of “beats”. All nodes receive the “beats” simultaneously, and operate in lock-step. A scheme that produces a “pulse” every Cycle beats is shown. That is, the nodes agree on “special beats”, which are spaced Cycle beats apart. Given such a scheme, a clock synchronization algorithm is built. The “pulsing” scheme is sel...

In this paper, we mix two well-known approaches of the fault-tolerance: robustness and stabilization. Robustnessis the aptitude of an algorithm to withstand permanent failures such as process crashes. The stabilization is a generaltechnique to design algorithms tolerating transient failures. Using these two approaches, we propose algorithms thattolerate both transient and crash fail...

Wormhole routing is most commonly used in parallel architectures in which messages are sent in small fragments, called flits. It is a lightweight and efficient method of routing messages between parallel processors. Self-stabilization is a technique that guarantees tolerance to transient faults (e.g., memory corruption or communication hazards) for a given protocol. Self-stabilization guarantee...

Objective: Thoracic trauma may be a life-threatening condition. Flail chest is a severe chest injury with high mortality rates. Surgery is not frequently performed and, in Literature, data are controversial. The authors report their experience in the treatment of flail chest by an extracortical internal-external stabilization technique with Kirshner’s wires (K-wires). <...