The main progress in the eld of nucleon-nucleon (NN) potentials, which we have seen in recent years, is the construction of some very quantitative (high-quality/high-precision) NN potentials. These potentials will serve as excellent input for microscopic nuclear structure calculations and will allow for a systematic investigation of o -shell effects. After this enormous quantitative work, it is...

Neural network (NN) tools are suitable for many tasks such as classification, clustering, scheduling and prediction. NN performance depends on the strategy of learning a phenomenon, the number of hidden nodes, activation function and, of course, the behavior of the data. There are many techniques used for training NN, while the social insect’s techniques become more focused by researchers becau...

Random projection trees have proven to be effective for approximate nearest neighbor searches in high dimensional spaces where conventional methods are not applicable due to excessive usage of memory and computational time. We show that building multiple trees on the same data can improve the performance even further, without significantly increasing the total computational cost of queries when...

nN backward scattering data above 5 GeV /c are analyzed in terms of the baryon Regge pole exchange and accompanying Regge cut due to the strong absorption. The fit of the cross sections is reasonable. The role of the cut turns out to be very important: (1) The extrapolated magnitude of the L10 residue at a 4 =! is significantly larger than that without the cut. Ll0 residue with or without the w...

Previous information on the catabolism of valine has been obtained by taking advantage, for the most part, of the gluconeogenic property of valine and using glucose as an indicator of its intermediary metabolism. Thus, Rose et al. (1) reported that valine and a-ketoisovaleric acid have similar gluconeogenic effects, both contributing 3 of their carbon atoms to glucose formation in phlorizinized...

Let G be a finite group. Yakov Berkovic investigated the following concept: A subgroup H of G is called NR−subgroup with respect to G if A = AG ⋂ H for any subgroup A H.In particulary,called a finite group G NN−group if its any subgroup is either normal subgroup or NR−subgroup of G. In fact, all groups with order p -p3 are NN -group,where p is a prime. In this paper, the nature and structure of...

It has previously been established that the chick requires phenylalanine in its diet (1,2) as do the rat (3) and mouse (4), but for none of these animals is tyrosine an essential dietary constituent (2-6). Moss and Schoenheimer showed (‘i), by isotope tracer methods, that an appreciable amount of phenylalanine is converted to tyrosine in the rat even when a large amount of tyrosine is present i...

A new generic neural network (NN) application -improving computational efficiency of certain processes in numerical environmental models – is considered. This approach can be used to accelerate the calculations and improve the accuracy of the parameterizations of several types of physical processes which generally require computations involving complex mathematical expressions, including differ...

It is shown that chiral perturbation theory (in its original form by Wein-berg) can describe N N scattering with positive as well as negative effective range. Some issues connected with unnaturally large N N 1 S 0 scattering length are discussed. The chiral perturbation theory approach to the low-energy purely pionic processes [1] has been generalised for processes involving an arbitrary number...