CLC-K2, a kidney-specific member of the CLC chloride channel family, is thought to play an important role in the transepithelial Cl(-) transport in the kidney. This consensus was first reached shortly after it was demonstrated that the mutations of the human CLCNKB gene resulted in Bartter's syndrome type III. To clarify the pathogenesis, the exact intrarenal and cellular localization of CLC-K2...

Yesha Y. Sivan is the CEO of the K2K Knowledge Infrastructure Laboratory. He received a B.A. from Tel Aviv University and the M.A. and Ed.D from Harvard. His current research is in knowledge management and the creation of knowledge systems for corporate, hi-tech, and military environments. His publications include From the MTV Age to the LLL Age: The Story of a Knowledge Infrastructure for the ...

In this paper we provide the first side-channel analysis of the K2 stream cipher. K2 is a fast and secure stream cipher built upon the strengths of SNOW 2.0. We apply timing attacks, power analysis, and differential fault analysis to K2. We show that naively implemented K2 is vulnerable to cache-timing attacks, and describe how to implement efficient countermeasures to protect K2 against side-c...

Let F2k,k2 consist of all simple graphs on 2k vertices and k2 edges. For a simple graph G and a positive integer λ, let PG(λ) denote the number of proper vertex colorings of G in at most λ colors, and let f(2k, k2, λ) = max{PG(λ) : G ∈ F2k,k2}. We prove that f(2k, k2, 3) = PKk,k(3) and Kk,k is the only extremal graph. We also prove that f(2k, k2, 4) = (6 + o(1))4k as k →∞.

Title of Document: REGULATION OF INFECTED CELL FUSION BY THE VACCINIA VIRUS A56 AND K2 PROTEINS. Timothy Robert Wagenaar, Ph.D., 2008 Directed By: Dr. Bernard Moss, Adjunct Professor, Department of Cell Biology and Molecular Genetics Poxviruses are a group of large double-stranded DNA virus that replicate in the cytoplasm of the cell. The Orthopoxvirus genus includes variola virus, the etiologi...

We present the first results of K2-OjOS, a collaborative project between professional and amateur astronomers primarily aimed to detect, characterize, validate new extrasolar planets. For this work, 10 looked for planetary signals by visually inspecting 20 427 light curves K2 campaign 18 (C18). They found 42 planet candidates, which are detections 24 had been detected in overlapping C5 previous...

A Bayesian network is an appropriate tool to work with the uncertainty that is typical of real-life applications. Bayesian network arcs represent statistical dependence between different variables and can be automatically elicited from database by Bayesian network learning algorithms such as K2. In the data mining field, association rules can also be interpreted as expressing statistical depend...

The proteins encoded by the A56R and K2L genes of vaccinia virus form a heterodimer (A56/K2) and have a fusion regulatory role as deletion or mutation of either causes infected cells to form large syncytia spontaneously. Here, we showed that syncytia formation is dependent on proteins of the recently described entry fusion complex (EFC), which are also required for virus-cell fusion and low-pH-...

We elucidate constraints imposed by confinement and dynamical chiral symmetry breaking on the infrared behaviour of the dressed-quark and -gluon propagators, and dressed-quark-gluon vertex. In covariant gauges the dressing of the gluon propagator is completely specified by P(k2) := 1/[1+Π(k2)], where Π(k2) is the vacuum polarisation. In the absence of particle-like singularities in the dressed-...