The persistence of Heterorhabditis megidis in soil was studied over a 4-week period. On days 0, 2, 14, and 28, infective juveniles (IJ) were extracted by centrifugal flotation, Baermann funnel, and baiting of soil with Tenebrio molitor larvae, which were then dissected. Extraction efficiencies on day 0 were 82% by centrifugal flotation, 56% by Baermann funnel, and 19.8% by bait insect. The rela...

The behavior of various types of noncompact covering properties such as paracompactness, metacompactness, subparacompactness, submetacompactness, etc., are studied under various types of fuzzy mappings such as open map, closed map, perfect map, etc. Moreover the concept of para-Lindelof space is introduced in L-topological spaces and its properties and behavior under maps are obtained.

As is well known the category of paracompact spaces is important in algebraic topology and the theory of fiber spaces. The following question arises naturally. If a space (Hausdorff space) B is paracompact, is the space of paths B1 (I = [0, l]), with, of course, the compact-open topology, also paracompact? The following simple example answers the question in the negative. Let X denote the set o...

This paper deals with some questions that have received a lot of attention since they were raised by Hejhal and Rackner in their 1992 numerical computations of Maass forms. We establish sharp upper and lower bounds for the L2-restrictions of these forms to certain curves on the modular surface. These results, together with the Lindelof Hypothesis and known subconvex L∞-bounds are applied to pro...

Let G be a fixed graph with largest (adjacency matrix) eigenvalue λ0 and with its universal cover having spectral radius ρ. We show that a random cover of large degree over G has its “new” eigenvalues bounded in absolute value by roughly √ λ0ρ. This gives a positive result about finite quotients of certain trees having “small” eigenvalues, provided we ignore the “old” eigenvalues. This positive...

Estimation in binary longitudinal data by using generalized estimating equation (GEE) becomes complicated in the presence of missing data because standard GEEs are only valid under the restrictive missing completely at random assumption. Weighted GEE has therefore been proposed to allow the validity of GEE's under the weaker missing at random assumption. Multiple imputation offers an attractive...

We consider the Einstein/Yang-Mills equations in 3 + 1 space time dimensions with SU(2) gauge group and prove rigorously the existence of a globally defined smooth static solution. We show that the associated Einstein metric is asymp-totically flat and the total mass is finite. Thus, for non-abelian gauge fields the Yang/Mills repulsive force can balance the gravitational attractive force and p...

Adrian Stoica, “Toward Evolvable Hardware Chips: Experiments with a Programmable Transistor Array,” IEEE, Apr. 1999, pp. 1-7.* Zebulum et al, “Eiolvable Hardware: on the Automatic Synthesis of Analog Control Systems,” IEEE, Mar. 2000, pp. 451-463.* August0 et al, “Analog Fault Diagnostic in Nonlinear DC Circuits with an Evolutionaly Algorithm,” IEEE, Jul. 2000, pp. 609-616.* Stoica et al, “Evol...