Collapse of (1+1)-dimensional beams in the inhomogeneous one-dimensional quintic nonlinear Schrödinger equation is analyzed both numerically and analytically. It is shown that in the vicinity of a narrow attractive inhomogeneity, the collapse of beams in which the homogeneous medium would blow up may be delayed and even arrested.

We investigate a sequence of dynamic criminal networks on a time series based on the dynamic network analysis (DNA). According to the change of networks’ structure, networks’ variation trend is analyzed to forecast its future structure. Finally, an optimal arresting time and priority list are designed based on our analysis. Better results can be expected than that based on social network analys...

D NA double-stranded breaks (DSBs) are a nasty form of damage for a cell, and their repair is important, complex and deeply studied. In the best case, a DSB is repaired using a homologous substrate; less optimally by error-prone direct sealing, then by sealing to another piece of DNA, or not sealed at all. The key is that cells convert a DSB into ssDNA, a substrate repairable by homology, and c...

It has been clear for a number of years that small DNA tumor viruses such as simian virus 40 (SV40) and papillomavirus interact with cell cycle control pathways during lytic replication in a way that promotes entry into the S phase of the cell cycle. Since these viruses do not code for their own DNA polymerase or other accessory factors that support DNA replication, this strategy is a means of ...

Arresting occlusal enamel caries lesions with pit and fissure sealants The aim of this study was to evaluate the feasibility of pit and fissure sealants and the effectiveness of the two sealant methods applied in every-day practice in public dental health care in Finland. Two sealant methods were evaluated according to their effectiveness in preventing dentin caries at occlusal surfaces and sea...

The actin cytoskeleton is regulated by factors that influence polymer assembly, disassembly, and network rearrangement. Drugs that inhibit these events have been used to test the role of actin dynamics in a wide range of cellular processes. Previous methods of arresting actin rearrangements take minutes to act and work well in some contexts, but can lead to significant actin reorganization in c...