Prior reduction of chicken liver xanthine dehydrogenase with xanthine or NADH leads to accelerated loss of enzymic FAD on exposure to 3 M KI. Reduction with NADH leads to the dissociation of all of the FAD, whereas reduction with xanthine results in the rapid dissociation of only 50% of the FAD. In both cases the xanthine ---f NAD activity is completely abolished. Oxidation of xanthine in the p...

An oracle A is k-cheatable if there is a polynomial-time algorithm to determine the answers to 2 k parallel queries to A from the answers to only k queries to some other oracle B. It is known that 1-cheatable sets cannot be bi-immune for P. In contrast, we construct 2-cheatable sets that are bi-immune for arbitrary time complexity classes. In addition , for each k, we construct a set that is (k...

in this paper, we study projective randers change and c-conformal change of p-reduciblemetrics. then we show that every p-reducible generalized landsberg metric of dimension n  2 must be alandsberg metric. this implies that on randers manifolds the notions of generalized landsberg metric andberwald metric are equivalent.

Given a field [Formula: see text] and text], we say that polynomial has newly reducible text]th iterate over if is irreducible but not (here denotes the of text]). We pose problem characterizing, for given fields such there exists degree with iterate, similar admitting infinitely many text]. give results in cases as well when In particular, show all these pairs, are monic Curiously, minimal gol...

A convex subnearlattice of a nearlattice S containing a fixed element n∈S is called an n-ideal. The n-ideal generated by a single element is called a principal n-ideal. The set of finitely generated principal nideals is denoted by Pn(S), which is a nearlattice. A distributive nearlattice S with 0 is called m-normal if its every prime ideal contains at most m number of minimal prime ideals. In t...

let $l$ be a lattice in $zz^n$ of dimension $m$. we prove that there exist integer constants $d$ and $m$ which are basis-independent such that the total degree of any graver element of $l$ is not greater than $m(n-m+1)md$. the case $m=1$ occurs precisely when $l$ is saturated, and in this case the bound is a reformulation of a well-known bound given by several authors. as a corollary, we show t...

The classiication technique by Non-Reducible Descriptors provides decision rules in term of Boolean formulae on object's key features. In this paper we present an extension of the Non-Reducible Descriptors that contains quantitative information. By Quantitative Non-Reducible Descriptor of an object, the distance to the descriptions of objects from another classes is explicitly expressed. This f...

A modified Code Noise and Multipath (CNMP) algorithm is presented for dual-frequency differential GPS precision approach and landing. Pseudorange noise and multipath are exchanged for reducible biases in both reference station and aircraft ranging measurements. The second frequency is used only to correct the code-minus-carrier observable. Corrected pseudorange measurements are combined using a...