We propose a new unidirectional proxy re-encryption scheme based on the hardness of the LWE problem. Our construction is collusionsafe and does not require any trusted authority for the re-encryption key generation. We extend a recent trapdoor definition for a lattice of Micciancio and Peikert. Our proxy re-encryption scheme is provably CCA-1 secure in the selective model under the LWE assumption.

This paper studies the pickup and delivery traveling salesman problem with multiple stacks. The vehicle contains a number of (horizontal) stacks of finite capacity for loading items from the rear of the vehicle. Each stack must satisfy the last-in-first-out constraint which states that any new item must be loaded on top of a stack and any unloaded item must be on top of its stack. A branch-and-...

the new competitive environment changes the paradigm of power system operation. in the transmission area, open access process provides fair accessibility for all market participants. congestion management is one of the most important side effects of this new process. this paper proposes a new approach for congestion management which is based on both active and reactive re-dispatch of the networ...

OBJECTIVE To determine and compare failure, re-operation, and complication rates of all generations and techniques of autologous chondrocyte implantation (ACI). METHODS A systematic review of multiple medical databases was performed according to PRISMA guidelines. Levels I-IV evidence were included. Generations of ACI and complications after ACI were explicitly defined. All subject and defect...

Recent evidence has highlighted the critical role of memory cells in maintaining lifelong food allergies, thereby identifying these as therapeutic targets. IgG+ B replenish pools IgE-secreting upon allergen exposure, which contract thereafter due to short lifespan tightly regulated IgE-expressing cells. Advances detection and highly dimensional analysis allergen-specific T from allergic patient...