Four new intra-H-2 recombinants were characterized serologically and functionally. In two of these recombinants, B10.ASR1 and B10.ASR7, crossing over occurred between the A alpha and E alpha subregions, very probably in E beta since most intra-I region recombinants thus far investigated at the DNA level appear to involve recombination within the E beta gene. In the other two recombinants, B10.A...

A plasmid gap repair assay was used to assess the role of three known nucleases, Exo1, Mre11 and Rad1, in the processing of DNA ends and resolution of recombination intermediates during double-strand gap repair. In this assay, alterations in end processing or branch migration are reflected by the frequency of co-conversion of a chromosomal marker 200 bp from the gap. Gap repair associated with ...

It is known that multicast is an efficient method of supporting group communication as it allows the transmission of the packets to multiple destinations using fewer network resources. Along with the widespread deployment of the third generation cellular networks and the fast-improving capabilities of the mobile devices, content and service providers are increasingly interested in supporting mu...

We recently tested a new spin resonance crossing technique, Kondratenko Crossing (KC), by sweeping an rf-solenoid's frequency through an rf-induced spin resonance with both the KC and traditional fast crossing (FC) patterns. Using both rf bunched and unbunched 1.85 GeV/c polarized deuterons stored in COSY, we varied the parameters of both crossing patterns. Compared to FC with the same crossing...

Recently Ott, Tomforde and Willis introduced a notion of one-sided shifts over infinite alphabets and proposed a definition for sliding block codes between such shift spaces. In this work we propose a more general definition for sliding block codes between Ott-Tomforde-Willis shift spaces and then we prove Curtis-Hedlund-Lyndon type theorems for them, finding sufficient and necessary conditions...

In this paper we propose a new analytic technique to assess the performance of radio over fibre based wireless networks employing OFDM signalling. With this technique, which is based on the Volterra series, the impact of optical system non-linearities on the error probability of OFDM signals can be evaluated.

Contour-parallel offset (CPO) machining uses successive offsets of the boundary curves of the machining region as the tool-path-elements (TPEs). For the efficiency of the CPO machining, it is very important to minimize the number of tool-retractions, which cause additional tool movements and do not contribute to the actual cutting. Presented in the paper is a CPO tool-path linking algorithm, wh...

INTRODUCTION. .. ............................................................... 417 Relative frequency of crossing over in males and females. ............................. 418 Previous investigations. ...................................................... 418 Crossing over between B b and Lg I , and between C c and Sh sh in microsporogenesis and megasporogenesis. .................................

This paper looks at the problem of endowment assurances which do not meet their targets to repay residential mortgages. Through the analysis of the present value of payments under different inflation and interest-rate regimes, we conclude that the perceived problems with endowment policies may simply be a manifestation of "money illusion". Nevertheless, there could frictional problems and other...

The polynomial algorithm for constructing a special Eulerian cycle in a plane connected 4-regular graph G = (V,E) is presented in the paper. First of all any cycle of the passed edges does not contain any unpassed edges (the condition of ordered enclosing (OE-cycle). At second, the next edge of this cycle can be chosen from one of two neighbouring edges (left or right) of a cyclic order for the...