Wideband Planar Plate Monopole Antenna

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Carbon Nanotubes-Chitosan-Molecularly Imprinted Polymer Nano-Carriers Synthesis for Nanomedicine Application

Carbon nanotube-natural biopolymer nanovectors have important potential applications in delivery system for drugs and biomolecules. In this work, the use of multi-wall CNTs as nanoreserviors for drug loading and controlled release is demonstrated .We synthesized CNT-based Drug delivery systems; MWCNT-CS nanoparticles based on an ionotropic gelation method as a sustained-release systems for the delivery of Tenofovir (hydrophilic anti-retroviral drug). Molecularly imprinted polymer used as shell for encapsulating the synthesized polymer to reduce the toxicity of CNT and improved theit application in Drug Delivery System. The prepared nanoparticles were characterized by FTIR spectroscopy. TGA was applied to study the thermal stabilities, and SEM to investi-gate the morphology. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3521

Nondestructive examination of recovery stage during annealing of a cold-rolled low-carbon steel using eddy current testing technique

The recovery process in steel is usually investigated by conventional destructive tests that are expensive, time-consuming and also cumbersome. In this study, an alternative non-destructive test technique (based on eddy current testing) is used to characterise the recovery process during annealing of cold-rolled low-carbon steels. For assessing the reliability of eddy current results corresponding to different levels of recovery, X-ray line broadening analysis is also employed. It is shown that there is a strong relationship between eddy current outputs and the extent to which recovery occurs at different annealing temperatures. Accordingly, the non-destructive eddy current test technique represents the potential to be used as a reliable process for detection of the occurrence of recovery in the steel microstructure

Мониторинг опасных геологических процессов на территории г. Томска

International audienceTo assess the accuracy and signal quality of axial length measurements by partial coherence laser interferometry (PCI) for optical biometry in eyes with conventional (SO) or heavy silicone oil (HSO) as endotamponade

Molecular detection of blaVEB-1 beta-lactamase encoding gene among extended spectrum B-Lactamase positive wound isolates of Pseudomonas aeruginosa

Background: Pseudomonas aeruginosa is considered as a leading cause of nosocomial infections. Burn and wound infections are mainly caused by multidrug-resistant P. aeruginosa isolates. Drug resistance frequently occurs among nosocomial isolates and can usually resist a myriad of antibiotics such as novel β-lactam antibiotics. Detection of multidrug-resistant isolates could assist better drug administration. Objectives: The aim of this study was to detect Extended Spectrum Beta-Lactamases (ESBL) positive wound isolates and the genes encoding blaVEB-1 ESBL among wound isolates of P. aeruginosa. Materials and Methods: A total of 89 wound isolates of P. aeruginosa were collected from patients (47 (n = 42) were male and 53 (n = 47) were female) at six Iranian hospitals between years 2009 and 2011. Antibiotic susceptibility and phenotypic ESBL production tests were conducted. The combined disk was used to determine ESBLs production. The blaVEB-1 gene was detected with the polymerase chain reaction (PCR). Results: The majority of the wound isolates were resistant to augmentin (90, n = 80) and cefpodoxime (87.6, n = 78). However, the majority was susceptible to imipenem and meropenem. Fifty-eight (42) wound isolates were ESBL positive. The antibiotic resistance amongst ESBL positive isolates was relatively higher than ESBL negative isolates. Twenty-three (40) ESBL-positive isolates amplified the blaVEB-1 gene. Conclusions: More than behalf of the wound isolates were ESBL positive, and the presence of blaVEB-1 was determined in less than half of these isolates. Fortunately, resistance to imipenem and meropenem was low. © 2015 Pediartric Infections Research Center

NEW CLUSTERING SCHEMES FOR WIRELESS SENSOR NETWORKS

In this paper, two clustering algorithms are proposed. In the first one, we investigate a clustering protocol for single hop wireless sensor networks that employs a competitive scheme for cluster head selection. The proposed algorithm is named EECS-M that is a modified version to the well known protocol EECS where some of the nodes become volunteers to be cluster heads with an equal probability.  In the competition phase in contrast to EECS using a fixed competition range for any volunteer node, we assign a variable competition range to it that is related to its distance to base station. The volunteer nodes compete in their competition ranges and every one with more residual energy would become cluster head. In the second one, we develop a clustering protocol for single hop wireless sensor networks. In the proposed algorithm some of the nodes become volunteers to be cluster heads. We develop a time based competitive clustering algorithm that the advertising time is based on the volunteer node’s residual energy. We assign to every volunteer node a competition range that may be fixed or variable as a function of distance to BS. The volunteer nodes compete in their competition ranges and every one with more energy would become cluster head. In both proposed algorithms, our objective is to balance the energy consumption of the cluster heads all over the network. Simulation results show the more balanced energy consumption and longer lifetime