It is known that Moufang loops are closely related to groups as they have many properties in common. For instance, they both have an inverse for each element and satisfy Lagrange’s theorem. In this paper, we study the properties of a class of Moufang loops which are not groups, but all their proper subloops and proper quotient loops are groups.

one hundred and eight male (108) cases, which have been using lippes loops (i.u.d.) for contraception, were followed for five (+5) years, and unwanted pregnancies and side effects were analyzed. our over all impression is that because of the frequency of uterine bleeding which they cause, lippes loops are not an ideal contraceptive method for iranian women.

The molecular network in an organism consists of transcription/translation regulation, protein-protein interactions/modifications and a metabolic network, together forming a system that allows the cell to respond sensibly to the multiple signal molecules that exist in its environment. A key part of this overall system of molecular regulation is therefore the interface between the genetic and th...

We calculate the mass spectrum of the scalar meson nonet in the Nambu–JonaLasinio model (NJL model) with the ’t Hooft interaction. We also include corrections connected with meson loops in our analysis. The masses of the pseudoscalar and scalar meson nonets are in a satisfactory agreement with experimental data except for the mass of the f0(980) scalar meson. In order to describe this mass more...

We summarize some recent results concerning codes of finite nets, which are of interest in the search for non-Desarguesian planes of prime order and certain composite orders. The p-ranks of 3-nets are determined by algebraic properties of the defining loops, and p-ranks of k-nets admitting certain abelian groups of translations are bounded by algebraic properties of the groups. Here we discuss ...

Cellular circuits have positive and negative feedback loops that allow them to respond properly to noisy external stimuli. It is intriguing that such feedback loops exist in many cases in a particular form of coupled positive and negative feedback loops with different time delays. As a result of our mathematical simulations and investigations into various experimental evidences, we found that s...

Digital signal processors (DSP) are widespread in real-time systems. In the last ten years phase-locked loops have widely been used in DSP as control devices correcting a clock skew. In this paper new type of floating phase locked loops for DSP is designed. For the floating phase locked loops new stability conditions are obtained.