introduction: leukocytes causing a wide variety of side effects after transfusion are present in all blood products prepared by standard methods. as a consequence, the use of filter technology for leukoreduction has been widely practiced .according to aabb accreditation in 1996, leukoreduced blood components must contain less than 5×106 leukocytes per unit, but sometimes this value is higher ev...

in this paper pi, szeged and revised szeged indices of an infinite family of ipr fullereneswith exactly 60+12n carbon atoms are computed. a gap program is also presented that isuseful for our calculations.

Background: Adenosine 5'-phosphosulfate kinase (APSK) in plants contains a regulatory disulfide bond. Results: Analysis of oxidized APSK reveals altered nucleotide binding compared to the reduced enzyme. Conclusion: The N-terminal domain is responsible for redox-linked structural changes that regulate APSK activity. Significance: This work provides a molecular basis for understanding reciprocal...

In his famous article on “The nature of the firm”, Ronald Coase (1937) sought to answer the question why firms exist, why there are many firms and not just one, why people do not work as individual producers but rather in firms. He suggested that transaction costs could explain the boundaries of the firm and that suggestion later on gave rise to an abundant literature on vertical integration. T...

The last decade has seen a significant growth of our knowledge of the Neandertals, a population of Pleistocene hunter-gatherers who lived in (western) Eurasia between ∼400,000 and 40,000 y ago. Starting from a source population deep in the Middle Pleistocene, the hundreds of thousands of years of relative separation between African and Eurasian groups led to the emergence of different phenotype...

We describe a new class of attacks on secure microcontrollersand smartcards. Illumination of a target transistor causes it to conduct,thereby inducing a transient fault. Such attacks are practical; they donot even require expensive laser equipment. We have carried them outusing a flashgun bought second-hand from a camera store for $30 andwith an $8 laser pointer. As an illus...

This study examines the potential of neuronal networks and textural feature extraction for recognising suspicious regions in endoscopy under variable perceptual conditions and systematic or random noise in the data. Second-order statistics and discrete wavelet transform-based methodologies are examined in terms of their discrimination abilities, and several neuronal network learning algorithms ...

The CP T symmetry of relativistic quantum field theory requires the total lifetimes of particles and antiparticles be equal. Detection of p lifetime shorter than τp ∼ > O(10 32) yr would signal breakdown of CP T invariance, in combination with B–violation. The best current limit on τ p , inferred from cosmic ray measurements, is about one Myr, placing lower limits on CP T –violating scales that...

Higher twists and α s (M Z) extractions from the NNLO QCD analysis of the CCFR data for the xF 3 structure function. Abstract A detailed next-to-next-to-leading order (NNLO) QCD analysis is performed for the experimental data of the CCFR collaboration for the xF 3 structure function. Theoretical ambiguities of the results of our NNLO fits are estimated by application of the Padé resummation tec...