An m output pseudorandom generator G : ({±1}b)n → {±1}m that takes input n blocks of b bits each is said to be `-block local if every output is a function of at most ` blocks. We show that such `-block local pseudorandom generators can have output length at most Õ(2`b n d`/2e), by presenting a polynomial time algorithm that distinguishes inputs of the form G(x) from inputs where each coordinate...

in this research, a new technetium-99m generator has been developed with addition of cerium oxide to alumina column.  the adsorption behaviors of 99mo in the form of molybdate and 99mtc in the form of pertechnetate on ceo2/al2o3 was investigated and showed that the adsorption capacity of molybdate on this generator is higher than usual generator using al2o3. ceric ions were selected as an addit...

We obtain some uniformity of distribution results for the values of modular sums of the form n X j=1 ajxj (mod M) (x1; : : : ; xn) 2 B where M 1 is an integer, a1; : : : ; an are elements of the residue ring modulo M , selected unformly at random, and B is an arbitrary set of n-dimensional integer vectors. In some partial cases, for very special sets B, some results of this kind have been known...

Let M be either S × S or the one point blow-up CP # CP 2 of CP . In both cases M carries a family of symplectic forms ωλ, where λ > −1 determines the cohomology class [ωλ]. This paper calculates the rational (co)homology of the group Gλ of symplectomorphisms of (M, ωλ) as well as the rational homotopy type of its classifying space BGλ. It turns out that each group Gλ contains a finite collectio...

This paper presents a systematic procedure for modelling and simulation of a power system installed with a power system stabilizer (PSS) and a flexible ac transmission system (FACTS)-based controller. For the design purpose, the model of example power system which is a single-machine infinite-bus power system installed with the proposed controllers is developed in MATLAB/SIMULINK. In the develo...

We prove that every noncyclic subgroup of a free m-generator Burnside group B(m, n) of odd exponent n ≫ 1 contains a subgroup H isomorphic to a free Burnside group B(∞, n) of exponent n and countably infinite rank such that for every normal subgroup K of H the normal closure 〈K〉B(m,n) of K in B(m, n) meets H in K. This implies that every noncyclic subgroup of B(m, n) is SQ-universal in the clas...

background: hot lab is a specially designed room in a nuclear medicine hospital where the radiopharmaceuticals are delivered, stored and prepared for dispensing. 99mo/99mtc-generator is the major source in the hot lab used for various medical imaging. it is important to maintain a standard for hot lab procedures to optimize the patient care and minimize radiation exposure to all nuclear medicin...

This paper proves that, for any generator x ∈ Ext A (Zp, Zp), if (1L ∧ i)∗φ∗(x) ∈ Ext A (H ∗L ∧ M,Zp) is a permanent cycle in the Adams spectral sequence (ASS), then h0x ∈ Ext A (Zp, Zp) also is a permenent cycle in the ASS. As an application, the paper obtains that h0hnhm ∈ Ext3,pnq+pmq+q A (Zp, Zp) is a permanent cycle in the ASS and it converges to elements of order p in the stable homotopy ...

At low light intensities (less than 50 /anol m 2 s ') illumination evokes transient depolarization of membrane potential in mesophyll cells of the leaf-trap of Dionaea muscipula Ellis. Darkening causes hyperpolarization approximately symmetric to the response to illumination. The amplitude as well as the rate of potential changes depend on light intensity. After exceeding a definite threshold (...