Abstract not found

Checkpointing is a simple technique for rollback recovery: the state of an executing program is periodically saved to a disk file from whichitcan be recovered after a failure. While recent research has developed a collection of powerful techniques for minimizing the overhead of writing checkpoint

, and (3) the colorimetric deter-mination of salicylacetone in water. A study of the effects of varying concentrations of dichromate and sulfuric acid on the recoveries of acetoacetic and $-hydroxybutyric acids is presented and the optimum reagent concentrations are established. Recoveries of 100 per cent

Abstract: Based on the observation of a patient with a causal relationship between hyperparathyroidism and development of both autoimmune disease and paraproteinemia, we hypothesize a novel cause of autoimmunity triggered in the context of hyperparathyroidism.

at: is onlineArteriosclerosis, Thrombosis, and Vascular Biology Information about subscribing to Subscriptions:

invokes operations in the same total order throughout the distributed system. The result: consistency of replicated data and simplified programming of applications. Many applications can benefit from distributed systems based on multiple computers interconnected by a communication network

Accurate signal recovery or image reconstruction from indirect and possibly undersampled data is a topic of considerable interest; for example, the literature in the recent field of compressed sensing is already quite immense. Inspired by recent breakthroughs in the development of novel first

. For inpaintings involving the recovery of edges, we study a variational model that is closely connected to the classical total variation (TV) denoising model of Rudin, Osher, and Fatemi [PhSG D, 60 (1992), pp. 259--268]. Other models are also discussed based on the Mumford--Shah regularity [Comm. Pure Appl. Mathq

compliance with the Montreal Protocol and its amendments, and no intervening factors, such as major volcanic eruptions or enhanced stratospheric cooling. The results indicate that recovery of total column ozone is likely to be detected earliest in the Southern Hemisphere near New Zealand, southern Africa

wavelet-based (with orthogonal or frame-based representations) regularization or total-variation regularization. Our approach is based on a variable splitting to obtain an equivalent constrained optimization formulation, which is then addressed with an augmented Lagrangian method. The proposed algorithm