Bacterial translation initiation factor IF2 promotes ribosomal subunit association, recruitment, and binding of fMet-tRNA to the ribosomal P-site and initiation dipeptide formation. Here, we present the solution structures of GDP-bound and apo-IF2-G2 of Bacillus stearothermophilus and provide evidence that this isolated domain binds the 50 S ribosomal subunit and hydrolyzes GTP. Differences bet...

Using a residuum approach, we provide complete description of the space rational spatial curves given tangent directions. The Pythagorean hodograph are obtained as special case when norm direction field is perfect square. basis for curve explicitly. Consequently number interpolation problems (G1, C1, C2, C1/G2) in this become linear, cusp avoidance can be encoded by linear inequalities, and opt...

In this work we investigate the behavior of various geodesic convexity parameters with respect to the Cartesian product operation for graphs. First, we show that the convex sets arising from geodesic convexity in a Cartesian product of graphs are exactly the same as the convex sets arising from the usual binary operation ⊕ for making a convexity space out of the Cartesian product of any two con...

The term "Internet of Things (IoT)" expresses a huge network of smart and connected objects which can interact with other devices without our interposition. Radio frequency identification (RFID) is a great technology and an interesting candidate to provide communications for IoT networks, but numerous security and privacy issues need to be considered. In this paper, we analyze the security and ...

We show how to combine, into one unified spline complex, C2 tensorproduct bi-cubic NURBS and G2 bi-cubic rational splines. The G2 splines are capable of exactly representing basic shapes such as (pieces of) quadrics and surfaces of revolution, including tori and cyclides. The main challenge is to bridge the differing continuity. We transform the G2 splines to splines that are C2 in homogeneous ...

Let G = (G1,G2) be a Gaussian vector in R 2 with E(G1G2) 6= 0. Let c1, c2 ∈ R. A necessary and sufficient condition for the vector ((G1+c1α) , (G2+c2α) ) to be infinitely divisible for all α ∈ R is that Γi,i ≥ ci c j Γi, j > 0 ∀1≤ i 6= j ≤ 2. (0.1) In this paper we show that when (0.1) does not hold there exists an 0 < α0 < ∞ such that ((G1 + c1α) , (G2 + c2α) ) is infinitely divisible for all ...