We prove that a system of linear congruences of a particular form has at most a unique solution below a certain bound which can be computed efficiently. Using this result we develop attacks against the DSA schemes which, under some assumptions, can provide the secret key in the case where one or several signed messages are available. MSC 2010: 94A60, 11T71, 11Y16.

We consider the issue of determining the D0-D̄0 width difference ∆ΓD experimentally. The current situation is reviewed and suggestions for further study are given. We propose a number of D0 decay modes in addition to those studied in the recent E791, FOCUS and BELLE lifetime determination experiments. Then we address prospects for determining CF CDS strong phase differences, like δKπ which appea...

systems thinking is not a new concept to health system strengthening; however, one question remains unanswered: how policy-makers, system designers and consultants with a system thinking philosophy should act (have acted) as potential change agents in actually gaining opportunities to introduce systems thinking? development of comprehensive multi-year plans (cmyps) for immunization system is on...

We present a method to automatically register 2D cerebral digital subtraction angiography (DSA) images to 3D-DSA volumes. The method can be used for validation of flow simulation results and surgery planning. The algorithm was tested on clinical studies of six patients.

This paper describes the approaches of sentimental score prediction in the NTOU DSA system participating in DSAP this year. The modules to predict scores for words are adapted from our system last year. The approach to predict scores for phrases is keyword-based machine learning method. The performance of our system is good in predicting scores of phrases.

The Dynamic Spectrum Access (DSA) paradigm based on the Cognitive Radio (CR) technology has emerged as a promising solution to conciliate the existing conflicts between spectrum demand growth and current spectrum underutilization without changes to the existing legacy wireless systems. The basic underlying idea of DSA/CR is to allow unlicensed users to access in an opportunistic and non-interfe...

In the paper we detail the reduced form or hazard rate method of pricing credit default swaps, which is a market standard. We then show exactly how the ISDA standard CDS model works, and how it can be independently implemented. Particular attention is paid to the accrual on default formula: We show that the original formula in the standard model is slightly wrong, but more importantly the propo...

We show that financial innovations that change the collateral capacity of assets in the economy can affect investment even in the absence of any shift in utilities, productivity, or asset payoffs. First we show that the ability to leverage an asset by selling non-contingent promises can generate over-investment compared to the Arrow-Debreu level. Second, we show that the introduction of naked C...

This paper presents the first participation of the Luxembourgish Public Research Center Henri Tudor in the TREC 2014 Clinical Decision Support (CDS) Track. At the Resource Centre for Healthcare Technologies (SANTEC) department, we focus our research activities on healthcare technologies. Our mission consists primarily in improving healthcare by developing methods, tools, services and solutions ...