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background and objectives: the present work was carried out to investigate the ability of spirulina platensis to produce antimicrobial substance against bacteria and fungi.  materials and methods: the cells of the cyanobacterium were subjected to different extractions and the purified antagonistic compound proved to be effective against broad spectrum of bacteria and fungi. the antagonistic com...

zinc coating is formed by the heterogeneous assembly of the γ, γ1, δ, ζ and η phases whose mechanicalproperties greatly differ from each other. thermal strains resulting from large differences betweenthermal expansion coefficients are partially relaxed by the formation of a crack network. in order tomodel this phenomenon, initial hardness, thermal expansion coefficient αi and toughness (kic) of...

PURPOSE To analyze the effectiveness of bacterial cellulose hydrogel as a barrier in preventing postoperative peritoneal adhesion in rat model. METHODS Experimental study with 45 Wistar rats (Rattus norvegicus) that were divided into three groups for the following treatments: A. Saline, B. Oxidized Regenerated Cellulose (ORC) barrier, and C Bacterial Cellulose Hydrogel (BCH) barrier. After 45...

We present a model for the aperiodic variablity of accreting Black Hole Candidates (BHC) along with model light curves. According to the model this variability is the combined outcome of random (Poisson) injection of soft photons near the center of an extended inhomogeneous distribution of hot electrons (similar to those advocated by the ADAF or ADIOS flows) and the stochastic nature of Compton...

Banks finance their loans and other assets with a mix of deposits, debt, and equity capital. Maintaining adequate capital is important for banks because it absorbs losses and protects them from failure. Capital also protects the financial system and overall economy from the costs that can arise from bank failures. For example, one of the reasons policymakers were concerned about financial stabi...

PURPOSE The aim of this study was to evaluate the effects of preoperative ropivacaine infiltration in patients undergoing robotic thyroidectomy using the bilateral axillary breast approach method. METHODS Using a randomized, double-blind study design, 34 consecutive female patients who underwent robotic thyroidectomy were randomly assigned to receive local infiltration to the skin flap site u...

The ECOC framework provides a powerful and popular method for solving multiclass problems using a multitude of binary classifiers. We had recently introduced the Binary Hierarchical Classifier (BHC) architecture that addresses multiclass classification problems using a set of binary classifiers arranged as a tree. Unlike ECOCs, the BHC groups classes according to their natural affinities in ord...

For d ≥ 1 and α ∈ (0, 2), consider the family of pseudo differential operators {∆ + b∆α/2; b ∈ [0, 1]} on Rd that evolves continuously from ∆ to ∆ + ∆α/2. In this paper, we establish a uniform boundary Harnack principle (BHP) with explicit boundary decay rate for nonnegative functions which are harmonic with respect to ∆ + b∆α/2 (or equivalently, the sum of a Brownian motion and an independent ...