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Wireless sensor networks (WSN) have been attracting growing interests for developing a new generation of large-scale embedded computing systems, with a great potential for a wide range of applications such as surveillance, environmental monitoring, emergency medical response or building automation. However, the communication paradigms in wireless sensor(More)
OBJECTIVES Implantation of cell separation and mesenchymal stem cell culture techniques from human umbilical cord blood with and without using the Ficoll-Paque gradient density method (d=1.077 g/ml). METHODS Ten samples of the umbilical cord blood obtained from full-term deliveries were submitted to two different procedures of mesenchymal stem cell(More)
Leptospirosis is an emerging zoonotic disease caused by pathogenic species of the genus Leptospira. It has a broad range of clinical presentations in humans. Although progress has been made in the characterization of the host immune system factors that may affect disease progression and outcome, to date few reports have addressed the role of genetic(More)
The aim of this study is to analyze the immediate and late evolution for death and reintervention in a thoracic endovascular aortic repair (TEVAR) group, over a follow-up period of 112 months. Retrospective data of 255 patients, from 1998 to 2007, were obtained. The most prevalent diseases were thoracic aortic aneurysms (89), thoracic and abdominal(More)
BACKGROUND The aim of this study was to assess by Doppler echocardiography (ECO) the functioning of the mitral valve apparatus in patients who have undergone implantation of standardized bovine pericardium chordae (SBPC) for replacement of ruptured or elongated chordae tendineae with significant thinning. METHODS SBPC were implanted in 31 patients who had(More)
BACKGROUND Dynamic cardiomyoplasty has been considered to be an effective method of surgical treatment of patients with end-stage heart failure, and is an alternative to heart transplantation. METHODS We critically evaluated the long-term course of 52 patients with dilated cardiomyopathy who underwent dynamic cardiomyoplasty and were followed-up for up to(More)
Atrial fibrillation (AF) remains a frequent complication after coronary artery bypass graft surgery (CABG). We evaluate the association of AF occurrence and serum cardiac troponin I (cTnI) levels in the early postoperative period after CABG. Between April 2009 and January 2010, 95 consecutive patients with sinus rhythm who underwent CABG were evaluated. The(More)
There is a growing interest in integrating public transportation with the smartphone and mobile ticketing provides just that. To do so, different technologies can be used, such as Near Field Communication, Quick Response Codes and Bluetooth Low Energy. This paper explores the possibility of implementing a mobile ticketing solution, with focus on the ticket(More)
INTRODUCTION The conventional aortic valve replacement is the treatment of choice for symptomatic severe aortic stenosis. Transcatheter technique is a viable alternative with promising results for inoperable patients. Sutureless bioprostheses have shown benefits in high-risk patients, such as reduction of aortic clamping and cardiopulmonary bypass,(More)
OBJECTIVE The objective of this study was to evaluate, using echocardiography, the functioning of the mitral valve apparatus in patients submitted to standardized bovine pericardium chordae implantation to substitute ruptured chordae tendineae or elongated chordae with a significant degree of thinning. METHOD Standardized bovine pericardium chordae were(More)