We obtain the pp-waves of D = 5 and D = 4 gauged supergravities supported by U (1) 3 and U (1) 4 gauged field strengths respectively. We show that generically these solutions preserve 1/4 of the supersymmetry, but supernumerary supersymmetry can arise for appropriately constrained harmonic functions associated with the pp-waves. In particular it implies that the solutions are independent of the...

This paper describes a weak sense majority-vote technique for a k symbol function g(z) as follows. If a probabilistic polynomial time algorithm A exists such that Pr[A(z) = g(z)] 1=k + , then s 4 = 2 k 1 1 probabilistic polynomial time algorithms f ^ A 1 ; : : : ; ^ A s g exist such that for 8z 2 f0; : : : ; k 1g , there exists ^ A i 2 f ^ A 1 ; : : : ; ^ A s g such that Pr[ ^ A i (z) = g(z)] 1...

The Exceptional Child. By Maximilian P. E. Groszmann. New York: Charles Scribner's Sons, 1917. Pp. xxxiii+7G4. In the foreword Dr. Groszmann states that "the purpose of the book is to give a perspective of the entire situation, and to suggest ways and means of coping with the problem in its various aspects." Again he says, "It has been my endeavor to write the book in simple language and in a s...

In this paper we try to unify the frameworks of definitions of semantic security, indistinguishability and nonmalleability by defining semantic security in comparison based framework. This facilitates the study of relations among these goals against different attack models and makes the proof of the equivalence of semantic security and indistinguishability easier and more understandable. Beside...

We consider a generalisation of the hidden number problem recently introduced by Boneh and Venkatesan. The initial problem can be stated as follows: recover a number a ∈ Fp such that for many known random t ∈ Fp approximations to the values of batcp are known. Here we study a version of the problem where the “multipliers” t are not known but rather certain approximations to them are given. We p...

Community colleges — institutions that serve disproportionate numbers of poor, working-class, first-generation, nontraditional, and minority students — are uniquely positioned to provide liberating educational experiences to a diverse spectrum of society. Cross (2000) aptly describes the current interest in cooperative and/or collaborative learning with a metaphor: “a swelling river of interest...

pp/pep blends, because of different solubility factors, are incompatible. the aim of this research was to use pp-g-ma compatibilizer in a two-component blend. after preparing this compatibilizer in internal mixer and investigating different parameters on producing process, optimum compatibilization was obtained. pp/pet (60/40) blend fibers with different percentages of this compatibilizer in tw...