The histone genes of wild-type Drosophila melanogaster are reiterated 100-150 times per haploid genome and are located in the segment of chromosome 2 that corresponds to polytene bands 39D2-3 to E1-2. The influence of altered histone gene multiplicity on chromatin structure has been assayed by measuring modification of the gene inactivation associated with position effect variegation in genotyp...

They missed facial expressions and the sense of presence obtained in side-by-side interaction The Transparent Video Facetop is a novel user interface concept that supports not only single-user interactions with a PC, but also close pair collaborations, such as that found in collaborative Web browsing, remote medicine, and in distributed pair programming. Facetop seamlessly couples PC desktop co...

The complex interactions that appear in service-oriented computing make coordination a key concern in service-oriented systems. Over the past years, the need for high-confidence coordination mechanisms has intensified as new technologies have appeared for the development of service-oriented applications, making formalization of coordination mechanisms critical. Unifying Theories of Programming ...

To test the hypothesis that the H-2 polymorphism is adaptive, the degree of polymorphism of loci linked to the H-2 complex on chromosome 17 of the house mouse was compared to the degree of polymorphism of loci located on other chromosomes. Published theoretical analyses show that polymorphisms subject to natural selection usually reduce the polymorphism of linked neutral loci. The first test of...

Pair Programming has been shown to increase communication and teamwork skills and to provide better code. The aim of this work is to show the efficacy of Pair Programming in transferring knowledge and skills over an environment where people met only occasionally. In a quasi experiment, we find that Pair Programming is effective in sharing knowledge among 15 students who met once a week for a ha...

In this work, we investigated how thermally stable ImO(N):NaN(O) and ImN(O):NaO(N) pairs are recognized by the Klenow fragment (KF). As a result, these complementary base pairs, especially the ImN(O):NaO(N) pair, were recognized selectively due to the four hydrogen bonds between the nucleobases and the shape complementarity of the Im:Na pair similar to the purine:pyrimidine base pair.

In this work we prove that any pair of homogeneous dual multiwavelet frames of L2(R) constructed from a pair of refinable function vectors gives rise to a pair of nonhomogeneous dual multiwavelet frames and vice versa. We also prove that the Mixed Oblique Extension Principle characterizes dual multiwavelet frames. Our results extend recent characterizations of affine dual frames derived from sc...

Pair programming is a practice in which two programmers work side-by-side at one computer, continuously collaborating on the same design, algorithm, code, or test. This method has been demonstrated to improve productivity and the quality of software products. Moreover, a recent survey (hereafter referred to as "the pair programming survey") found that programmers were universally more confident...