In recent years backtrack search SAT solvers have been the subject of dramatic improvements. These improvements allowed SAT solvers to successfully replace BDDs in many areas of formal verification, and also motivated the development of many new challenging problem instances, many of which too hard for the current generation of SAT solvers. As a result, further improvements to SAT technology ar...

The genomes of all members of the Parvovirus genus were found to contain a small open reading frame (ORF), designated SAT, with a start codon four or seven nucleotides downstream of the VP2 initiation codon. Green fluorescent protein or FLAG fusion constructs of SAT demonstrated that these ORFs were expressed. Although the SAT proteins of the different parvoviruses are not particularly conserve...

Let (k, s)-SAT refer the family of satisfiability problems restricted to CNF formulas with exactly k distinct literals per clause and at most s occurrences of each variable. Kratochv́ıl, Savický and Tuza [6] show that there exists a function f(k) such that for all s ≤ f(k), all (k, s)-SAT instances are satisfiable whereas for k ≥ 3 and s > f(k), (k, s)-SAT is NP-complete. We define a new functio...

Constraint satisfaction deals with developing automated techniques for solving computationally hard problems in a declarative fashion. The main emphasis of this thesis is on constraint satisfaction techniques for the propositional satisfiability problem (SAT). As solving techniques for propositional satisfiability have rapidly progressed during the last 15 years, implementations of decision pro...

normal 0 false false false en-us x-none ar-sa background: this study was aimed at assessing the accuracy of provocative tests in diagnosis of acute or chronic cervical radiculopathy (cr) based on an electrodiagnostic reference criterion. materials and methods: shoulder abduction test (sat), spurling test (st), upper limb tension test (ultt), and electromyography were done on 97 patients who ref...

To determine the characteristics and clinical course of patients with subacute thyroiditis (SAT) without typical signs and symptoms, clinical and pathologic records of the patients were reviewed and compared with those of patients with typical SAT. During the past 10 years, 11 of 105 patients with SAT did not have enough typical features for a diagnosis of SAT (atypical SAT). They included one ...

Logic locking is a technique that’s proposed to protect outsourced IC designs from piracy and counterfeiting by untrusted foundries. A locked IC preserves the correct functionality only when a correct key is provided. Recently, the security of logic locking is threatened by a new attack called SAT attack, which can decipher the correct key of most logic locking techniques within a few hours [1]...

BACKGROUND Understanding the epidemiology of foot-and-mouth disease (FMD), including roles played by different hosts, is essential for improving disease control. The African buffalo (Syncerus caffer) is a reservoir for the SAT serotypes of FMD virus (FMDV). Large buffalo populations commonly intermingle with livestock in Kenya, yet earlier studies have focused on FMD in the domestic livestock, ...

The satisfiability (SAT) problem is a core, problem in mathematical logic and computing theory. In practice, SAT is fundamental in solving many problems in automated reasoning, computer-aided design, computeraided manufacturing, machine vision, database, robotics, integrated circuit design, computer architecture design, and computer network design. Traditional methods treat SAT as a discrete, c...

We provide some evidence that Unique -SAT is as hard to solve as general -SAT, where -SAT denotes the satisfiability problem for -CNFs and Unique SAT is the promise version where the given formula has or solutions. Namely, defining for each , a -time randomized algorithm for -SAT and, similarly, a -time randomized algorithm for Unique -SAT , we show that . As a corollary, we prove that, if Uniq...