Introduction: Retention of provisionallycemented implant-supported restorations plays an important role in success of the treatment. Uncemented restorations may cause several problems such as restoration swallowing, increased bone loss and prosthesis failure. Therefore, suitable cement compromising between retention and retrievability as well as extra-means of abutment retention might be prefer...

INTRODUCTION AND OBJECTIVES We aimed to determine the frequency of use and accessibility over time of electronic citations in Revista Española de Cardiología and 3 other Spanish biomedical journals, and to identify the factors that influence the accessibility and retrievability of these links. METHODS A cross-sectional, descriptive study was performed of all the references in articles publish...

This paper presents StealthGuard, an efficient and provably secure proof of retrievabillity (POR) scheme. StealthGuard makes use of a privacypreserving word search (WS) algorithm to search, as part of a POR query, for randomly-valued blocks called watchdogs that are inserted in the file before outsourcing. Thanks to the privacy-preserving features of the WS, neither the cloud provider nor a thi...

Proofs of Retrievability (POR) are cryptographic proofs which provide assurance to a single tenant (who creates tags using his secret material) that his files can be retrieved in their entirety. However, POR schemes completely ignore storage-efficiency concepts, such as multi-tenancy and data deduplication, which are being widely utilized by existing cloud storage providers. Namely, in deduplic...

Distributed storage allows to outsource a document to the cloud such that multiple users can easily access the file. The protection of the document stored relies on secret sharing, which generates and distributes shares of the document to the storage servers. However, the users have to trust that a certain amount of storage servers behaves honestly and do not lose (retrievability) or reveal (co...

The last five years have witnessed a sustained evolution of information technologies, coupled with a massive democratization of the production, the publication and the diffusion of electronic contents. The wide distribution of simplified editing tools and user-friendly electronic exchange platforms (blogs, wikis, etc) has led to a steep rise of online available information. The exponential grow...

Phase retrieval arises in various fields of science and engineering and it is well studied in a finite-dimensional setting. In this paper, we consider an infinite-dimensional phase retrieval problem to reconstruct real-valued signals living in a shiftinvariant space from its phaseless samples taken either on the whole line or on a set with finite sampling rate. We find the equivalence between n...