Kennedy et al. have introduced mixtures of monoor polyfunctional aralkyl chlorides with BCl, as initiating systems for the polymerization of isobutene'). This so-called inifer technique has been demonstrated to be a valuable method for the production of telechelic polymers2). The mechanism of initiation, which has been suggested for these polymerizations'*2), is in full agreement with the resul...

This paper represents the third step in the development of EQ-logics. Namely, after developing propositional and higher-order EQ-logics, we focus also on predicate one. First, we give a brief overview of the propositional EQ-logic and then develop syntax and semantics of predicate EQ-logic. Finally, we prove completeness by constructing a model of a consistent theory of EQ-logic from the syntac...

Two infinite sequences of minimal surfaces in space are constructed using symmetry analysis. In particular, explicit formulas are obtained for the selfintersecting minimal surface that fills the trefoil knot. Introduction. In this paper we consider the minimal surface equation EminΣ = { (1 + u2y) uxx − 2uxuyuxy + (1 + u 2 x) uyy = 0 } (1) whose solutions describe two-dimensional minimal surface...

that is, as a set of coupled, first-order differential equations. The solution proceeds in two steps; first the state-variable response x(t) is found by solving the set of first-order state equations, Eq. (1), and then the state response is substituted into the algebraic output equations, Eq. (2) in order to compute y(t). As in the classical solution method for ordinary differential equations w...

where the unknown {Yp}p∈N as well as the non-homogenous term {φp}p∈N are sequences from a vectorial space V , and the coefficients L0,L1, are linear noncommutative operators mapping V on itself, independent from the discrete variable p ∈ N. This equation encompasses interesting problems arising in very different scenarios. If, for instance, the reference space V is the complex Euclidean space C...

In this paper, first we define the notion of involutive operator on bounded involutive equality algebras and by using it, we introduce a new class of equality algebras that we called it a tense like equality algebra. Then we investigate some properties of tense like equality algebra. For two involutive bounded equality algebras and an equality homomorphism between them, we prove that the tense ...

background β-thalassemia is a prevalent genetic disease in mediterranean countries. the most common treatments for this disease are blood transfusion plus iron chelation (btic) therapy and bone marrow transplantation (bmt). patients using these procedures experience different health-related quality of life (hrqol). the purpose of the present study was to measure hrqol in these patients using 2...

background: the purpose of this research was to determine the traffic noise level and changes in the kerman city, southeast iran in recent years. methods: this cross-sectional study was carried out in 2008 to investigate the existing noise situation in kerman. sound levels (l max , l min , l eq , l 99 , l 90 , l 50 and l 10 ) were determined throughout 13 stations using sound level measurement ...

indq 6 indqξ for any ξ ∈ q . It is not always true that indq = indqξ, see Example 1.1 below. However, it was conjectured by ELASHVILI that if q = g is semisimple, then this equality always holds. It easily seen that it suffices to prove the equality indg = indgξ only for the nilpotent elements ξ ∈ g≃ g∗. The conjecture was recently proved by CHARBONNEL [3]. A proof for the classical Lie algebra...