A wavelet-based lossy-to-lossless image compression technique with polygon-shaped ROI function is proposed. Firstly, split and mergence algorithms are proposed to separate concave ROIs into smaller convex ROIs. Secondly, row-order scan and an adaptive arithmetic coding are used to encode the pixels in ROIs. Thirdly, a lifting integer wavelet transform is used to decompose the original image in ...

INTRODUCTION Quantitative measurements of T(2) relaxation in the hippocampus for focus lateralization in mesial temporal lobe epilepsy (mTLE) are well established. Less is known to what degree such relaxation abnormalities also affect regions beyond the ipsilateral hippocampus. Therefore, the aim of this study was to characterize extent and distribution pattern of extrahippocampal relaxation ab...

for defense against reactive oxygen intermediates but is dispensable for pathogenicity in an 2 intranasal mouse infection model 3 4 Abstract 1 Macrophages and neutrophils kill the airborne fungal pathogen Aspergillus fumigatus. The 2 dependency of this killing process on reactive oxygen intermediates (ROI) was strongly 3 suggested. Therefore, we investigated the enzymatic ROI detoxifying system...

BACKGROUND Healthcare workers (HCWs) are at particular risk of acquiring pertussis and transmitting the infection to high-risk susceptible patients and colleagues. In this paper, the return on investment (ROI) of preventively vaccinating HCWs against pertussis to prevent nosocomial pertussis outbreaks is estimated using a hospital ward perspective, presuming an outbreak occurs once in 10 years....

Background: A decreased rate of successful helicobacter pylori (H.pylori) infection treatment has revealed serious demand for more effective regimens to eradicate infection. Therefore, probiotics have recently been considered to increase the rate of antibiotic regimens efficacy in H. pylori infections. In current randomized controlled trial, we evaluated the effect of double strain probiotic co...

introduction: surgical site infection is one of the most common nosocomial infections and today it is believed that this infection caused by bacterias which penetrate into the wound during operation. surgery team members who have much contact with surgical site tissues, can control this infection by observing infection control principles. this study was done in order to determine performance ra...

introduction: in islamic countries in the month of holy ramadan many muslims based on their religious legislation refuse fluid intake during the fasting time though instructed to drink after injection of tc-99m methylene-diphosphonates [tc-99m mdp] used for skeletal scintigraphy. we aimed to establish whether fluid restriction in tc-99m mdp skeletal scintigraphy has an impact on its quality. me...

In real time video streaming, the frames must meet their timing constraints, typically specified as their deadlines. Wireless networks may suffer from bandwidth limitations. To reduce the data transmission over the wireless networks, we propose an adaption technique in the server side by extracting a part of the video frames that considered as a Region Of Interest (ROI), and drop the part outsi...

making capital and investment is the main driving forces of economic development. based on the investment sensitivity to the changes of some of macro-economic variables and risk and uncertainty, the present study evaluated the effective factors on investment in private sector in iran during 1980-2007. at first, the uncertainty variables of real informal exchange rate, nominal interest rate and ...