Assuming the existence of a heavy Majorana neutral particle arising from a composite model scenario we discuss the constraints imposed by present experimental limits of half-life neutrinoless double beta decay (0νββ) measurements on the coupling of the heavy composite neutrinos to the gauge bosons. For neutrino masses MN = 1 TeV we obtain a rather weak lower bound on the compositeness scale: Λ ...

We introduce the Laplace transform for an arbitrary time scale. Two particular choices of time scales, namely the reals and the integers, yield the concepts of the classical Laplace transform and of the classical Z-transform. Other choices of time scales yield new concepts of our Laplace transform, which can be applied to find solutions of higher order linear dynamic equations with constant coe...

A low-temperature expansion of QED one-loop effective Lagrangian valid for a wide range of parameters is presented in a form of finite sums of elementary functions. Starting from the effective action components of the one-loop polarization operator responsible for Hall conductivity and Debye screening are obtained. It is shown that in a strong background magnetic field the Debye radius depends ...

Considering importance of stress concentration around holes and notches of arbitrary shape in a given elastic medium for modern engineering, a two dimensional model for a thermoelastic problem in an hexagon region with an elliptic hole is established. The expressions for the temperature distribution and thermal stresses which have their importance in nuclear engineering are obtained for the mod...

We propose an architecture for reactive planning of contents in instruction. It is based on a framework for reactive planning which integrates opportunistic reactions with plan-based (plan-repairs and complete replanning). It is suggested how this framework can implement two radically different teaching styles, tutoring and coaching, as well as their interaction within one system. One additiona...

This paper develops a query language for sequence databases, such as genome databases and text databases. Unlike relational data, queries over sequential data can easily produce infinite answer sets, since the universe of sequences is infinite, even for a finite alphabet. The challenge is to develop query languages that are both highly expressive and finite. This paper develops such a language....

Simplified solutions to determine binary elements by astrometry were obtained in terms of elementary functions (Asada et al. 2004), and therefore require neither iterative nor numerical methods. In the framework of the simplified solution, this paper discusses the remaining two parameters of the time of periastron passage and the longitude of ascending node in order to complete the solution. We...

We present a general framework for forcing on ω2 with finite conditions using countable models as side conditions. This framework is based on a method of comparing countable models as being membership related up to a large initial segment. We give several examples of this type of forcing, including adding a function on ω2, adding a nonreflecting stationary subset of ω2 ∩ cof(ω), and adding an ω...

This paper develops a query language for sequence databases, such as genome databases and text databases. Unlike relational data, queries over sequential data can easily produce in nite answer sets, since the universe of sequences is in nite, even for a nite alphabet. The challenge is to develop query languages that are both highly expressive and nite. This paper develops such a language as a s...

We propose an architecture for reactive planning of contents in instruction. It is based on a framework for reactive planning which integrates opportunistic reactions with plan-based (plan-repairs and complete replanning). It is suggested how this framework can implement two radically different teaching styles, tutoring and coaching, as well as their interaction within one system. One additiona...