7 research outputs found

    The meeting of hydrogen and automotive: A review

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    1st International Mediterranean Science and Engineering Congress (IMSEC) WOS: 000412033800073 In this study, an overview has been presented a classification of the vehicles using hydrogen with different ways. The using of hydrogen in vehicles has been categorized into two main categories as designs in which hydrogen is burned and energy is generated by conversion to electricity. The designs of internal combustion vehicles with using hydrogen via burning, the designs of the fuel cell vehicles that using hydrogen by converting into electricity and their hybrid versions have been introduced. In the automotive industry, the structure and future advantages of hydrogen fuel cell electric vehicles have been handled in a separate title. Onboard storage, safety, the capital cost and operating cost of the different design of vehicles have been analyzed rigorously. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved

    Abstract Number ‐ 175: First Pass Results of Mechanical Thrombectomy with two‐drop zone NeVaTM Device

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    Introduction Occlusive thrombi in acute ischemic stroke can be in various types which limits the success of the thrombectomy.The NeVaTM(Vesalio, Nashville, Tennessee) thrombectomy device was originally designed for all types of clot. Our aim was to evaluate the efficacy and safety of the NeVaTMdevice for mechanical thrombectomy. Methods Retrospective review of prospectively collected mechanical thrombectomy database revealed 145 patients who had fullfilled the inclusion criteria.The data collected includes clinical patient characteristics, procedural measures, timestamp at each stage, and patient outcome. IV thrombolytics application, pre and post‐intervention imaging findings, device related adverse event and any type of intracranial hemorrhage were recorded. Results There was female pre‐dominance (54.5%). Median presenting NIHSS was 16 (IQR, 3–32). 88 MCA‐m1 (60,6%), 43 ICA‐tip (29,6%), 11 MCA‐m2 (7,5%), 2 ACA (1,4%) and 1 basilar (0,7%) occlusions were underwent for mechanical thrombectomy. Median procedure time was 25 min (IQR, 7–136). First‐pass reperfusion scores were mTICI 0–2a 22.7%, mTICI 2b 23.4%, mTICI 2c 17.9% andmTICI 3 35.9%.Mean number of pass was1,84±1,14.Final mTICI 2b‐3 score was 97.9% and TICI2c‐3 score was 87.6%. No device related adverse event occurred. The mean 24‐hour NIHS score was 6 (IQR 0–33). Conclusions In conclusion, the NeVa thrombectomy device offers a high rate of first‐pass success along with favorable safety profile. Larger series and multi‐center studies are needed for further investigatio

    Classification and diagnosis of aggressive periodontitis

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    Objective: Since the initial description of aggressive periodontitis (AgP) in the early 1900s, classification of this disease has been in flux. The goal of this manuscript is to review the existing literature and to revisit definitions and diagnostic criteria for AgP. Study analysis: An extensive literature search was performed that included databases from PubMed, Medline, Cochrane, Scopus and Web of Science. Of 4930 articles reviewed, 4737 were eliminated. Criteria for elimination included; age > 30 years old, abstracts, review articles, absence of controls, fewer than; a) 200 subjects for genetic studies, and b) 20 subjects for other studies. Studies satisfying the entrance criteria were included in tables developed for AgP (localized and generalized), in areas related to epidemiology, microbial, host and genetic analyses. The highest rank was given to studies that were; a) case controlled or cohort, b) assessed at more than one time-point, c) assessed for more than one factor (microbial or host), and at multiple sites. Results: Epidemiologic studies provided insight into ethnic and societal factors affecting AgP. DNA analysis of microbes showed some consistency but significant variability. Host factor analysis was less consistent. Many genetic studies were conducted but few had either sufficient power or looked at multiple genes in AgP. Conclusions: Conflicting data resulted for several reasons; 1) the classification was too broad, 2) the disease (AgP) was not studied from its inception, at differing time points (temporal), and at different locations (topographic). New technologic advances coupled with a more delimiting definition of disease will allow for genetic, host and microbial factor analyses in an unbiased manner. As such we predict that progress can be made in identifying a robust group of genetic, host, and microbial risk-markers associated with periodontal disease that can improve diagnostic capability in disease associated with juveniles, adolescents, and post-adolescent individuals
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