We study the fragmentation of a transversely polarized quark into a non collinear (k⊥ 6= 0) spinless hadron and the fragmentation of an unpolarized quark into a non collinear transversely polarized spin 1/2 baryon. These nonperturbative properties are described by spin and k⊥ dependent fragmentation functions and are revealed in the observation of single spin asymmetries. Recent data on the pro...

Fragmentation of amyloid polymers by the chaperone Hsp104 allows them to propagate as prions in yeast. The factors which determine the frequency of fragmentation are unclear, though it is often presumed to depend on the physical strength of prion polymers. Proteins with long polyglutamine stretches represent a tractable model for revealing sequence elements required for polymer fragmentation in...

The objective of the presented study was determination of the effect of selected agents on sperm DNA fragmentation--superoxide dismutase in seminal plasma, the patients' age, and burdening with the tobacco smoking habit. An attempt was also undertaken to evaluate the effect of DNA fragmentation on the effectiveness of infertility treatment. The study covered 186 men who received treatment due t...

Habitat fragmentation affects the integrity of many species, but little is known about species-specific sensitivity to fragmentation. Here, we compared the genetic structure of four freshwater fish species differing in their body size (Leuciscus cephalus; Leuciscus leuciscus; Gobio gobio and Phoxinus phoxinus) between a fragmented and a continuous landscape. We tested if, overall, fragmentation...

Zerumbone is a cytotoxic compound isolated from the herbal plant, Zingiber zerumbet Smith, which exhibits antitumor activity [1-2], anti-inflammatory effects and possesses anti-proliferative potentials in a variety of cell lines [3-4]. DNA fragmentation indicates an early event of apoptosis leading to cell death due to the absence of new cellular proteins synthesizing for cell survival. Previou...

In this paper we tackle the fragmentation problem for highly distributed databases. In such an environment, a suitable fragmentation strategy may provide scalability and availability by minimizing distributed transactions. We propose an approach for XML fragmentation that takes as input both the application’s expected workload and a storage threshold, and produces as output an XML fragmentation...