The concept of fuzzy sets and fuzzy set operations were first introduced by Zadeh [30], fuzzy logic has become an important area of research in various branches of Mathematics such as metric and topological spaces, theory of functions, approximation theory etc. Subsequently several authors have discussed various aspects of the theory and applications of fuzzy sets. The concept of fuzzyiness has...

Individuals with elevated levels of plasma cholesterol and triglyceride may be at higher risk for coronary artery disease than those with isolated elevations of either cholesterol or triglyceride. Sequence variation in the A-I/C-III/A-IV gene cluster has been implicated in the etiology of some disorders associated with premature atherosclerosis and/or hypertriglyceridemias with or without eleva...

We report the identification of a sequence (CX-10b-1-2; 0.55 kb Hind m/Alu I fragment) which is duplicated on the human X chromosome. On Southern analysis at high stringency A), while Pst I gave a single band, Xmn I and Pvu II three bands, and Bst N I and Hae in at least four bands. Multiple bands may be due to restriction sites within the probe, or two different clusters of the probe sequence....

In this paper Diophantine approximation involving general distance and error functions will be considered for systems of linear forms. Distance functions will be denoted by F : R → R and are continuous, non-negative and satisfy F (ux) = uF (x) for all u ≥ 0 ([3], p. 103). An error function ψ : R \ {0} → R is positive and satisfies ψ(x) → 0 as |x| → ∞, where |x| = max{|x1|, . . . , |xn|}. An upp...

During the last years spin-polarized transport became a matter of major interest [1, 2], giving rise to a eld usually called magnetoelectronics, or spintronics. Much e ort has been made in studying and producing the so-called spin-valve, where a spin-polarized current is generated. A promising system in that area is the recently grown structure of GaAs/AlAs with inclusions of Ga1 xMnxAs layers ...