Introduction: Acinetobacter baumannii is associated with hospital-acquired infections. Outer membrane protein A of A.baumannii (AbOmpA) is a well-characterized virulence factor which has important roles in pathogenesis of this bacterium. Methods: Based on our PCR-sequencing of ompA gene in the clinical isolates, AbOmpA protein can be categorized into two types, named here type-1 and type-2. We ...

The author investigates the building process of ancient Kyyivan monuments. After wall foundations were laid, erection ground volumes edifice began. Wooden scaffoldings arranged at both sides a wall. remains caffolding preserved in brick fabric can be seen on front walls Transfiguration Church Berestove and St. Michael’s Vydubytsky monastery. height between scaffolding tiers as well masonry them...

Vaults are ubiquitous ribonucleoprotein complexes involved in a diversity of cellular processes, including multidrug resistance, transport mechanisms and signal transmission. The vault particle shows a barrel-shaped structure organized in two identical moieties, each consisting of 39 copies of the major vault protein MVP. Earlier data indicated that vault halves can dissociate at acidic pH. The...

Gradient-index dielectric lenses are generated based on the coordinate transformation by compressing the homogeneous air spaces quasi-conformally towards and outwards the primary source. The three-dimensional modeling is then performed through revolving the prescribed transformational media 180 degrees around the focal point to reach the architecture of barrel-vaults. It is found that all these...

The b-barrel membrane protein is found in the outer membranes of bacteria, mitochondria and chloroplasts. Approximately 2–3% of the genes in Gram-negative bacterial genomes encode b-barrels. Whereas there are fewer than 20 known three-dimensional b-barrel structures, genomic databases currently contain thousands of b-barrels belonging to dozens of families. New research is revealing the variety...

Cracking-resistant password vaults have been recently proposed with the goal of thwarting offline attacks. This requires the generation of synthetic password vaults that are statistically indistinguishable from real ones. In this work, we establish a conceptual link between this problem and steganography, where the stego objects must be undetectable among cover objects. We compare the two frame...

Deployable bar structures are especially useful for emergency buildings. These require simplicity and ease of assembly their performance can be improve by using reciprocal linkage at bars ends. This configuration determines singular constructive conditions that allow all types cylindrical vaults. article develops this new system, from a previously theoretical analysis to test campaign allows ve...

In the present paper, on assuming that the material has infinite friction and no cohesion, i.e. it is No-Tension in the sense of Heyman, we study the equilibrium of cross vaults of unequal rise, such as those of some Romanesque and Gothic churches. In particular the case study of the lateral cross vaults of the Cathedral of the old town of Caserta is analyzed. The scope of the paper is not to s...