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10篇 您的检索式:作者名="Tafur S"
    题名 作者 年代 出处 被引量
150 GHz optical true time delay beamforming in hybrid optical/mm-wave access networks with multi-core optical fiber distribution显示文摘We propose and experimentally validate an optical true time delay beamforming scheme with straightforward integration into hybrid optical/millimeter(mm)-wave access networks. In the proposed approach, the most complex functions, including the beamforming network, are implemented in a central office, reducing the complexity and cost of remote antenna units. Different cores in a multi-core fiber are used to distribute the modulated signals to high-speed photodetectors acting as heterodyne mixers. The mm-wave carrier frequency is fixed to 50 GHz(VBand), thereby imposing a progressive delay between antenna elements of a few picoseconds. That true time delay is achieved with an accuracy lower than 1 ps and low phase noise.álvaro Morales Idelfonso Tafur Monroy Fredrik Nordwall Tommi Sφrensen 2018Chinese Optics Letters2018,16,4:2
2Statistical analysis of crosstalk accumulation in WDM networks 显示文摘Dorren H J S Waardt H de Monroy I Tafur 1999J Lightwave Technology1999,17,12:1
3Adverse impact of mood on flow-mediated dilation显示文摘Cooper D C Milic M S Tafur J R Mills P J Bardwell W A Ziegler M G 2010Psychosom Med2010,72,:1
4Antiviral components of Ophiorrhiza mungos isolation of camptothecin and 10 - methoxycamptothecin显示文摘TAFUR S NELSON J D DELONG D C 1976Lloydia1976,39,4:1
5Coated-platelets im- prove prediction of stroke and transient ischemic attack in asympto- matic internal carotid artery stenosis 显示文摘Kirkpatrick A C Tafur A J Vincent A S 2014Stroke2014,45,10:1
6Response of cassava (Manihot esculenta Crantz) to water stress and fertilization 显示文摘Tafur De S M El-Sharkawy M A Cadavid L F 1997Photosynthetica1997,34,2:1
7Genotypic and within canopy variation in leaf carbon isotope discrimination and its relation to short-term leaf gas exchange characteristics in cassava grown under rain-fed conditions in the tropics显示文摘EI-Sharkawy M A Tafur De S M 2007Photosynthetica2007,45,4:1
8Genotypic and within canopy variation in leaf carbon isotope discrimination and its relation to short-term leaf gas exchange characteristics in cassava grown under rain-fed conditions in the tropics显示文摘El-sharkawy M A Tafur S M D 2007Photosynthetica2007,45,4:1
9Antiviral Components of Ophiorrhiza Mungos Iisolation of Camptothecin and 10 - methoxycamptothecin 显示文摘Tafur S Nelson J D De Long D C 1976Loydia1976,39,4:1
10Risk assessment of venous thromboembolism in inflammatory bowel disease by inherited risk in a population-based incident cohort显示文摘Inflammatory bowel disease(IBD),including Crohn’s disease(CD)and ulcerative colitis(UC),is a chronic inflammatory disease of the digestive tract with increasing prevalence globally.Although venous thromboembolism(VTE)is a major complication in IBD patients,it is often underappreciated with limited tools for risk stratification.AIM To estimate the proportion of VTE among IBD patients and assess genetic risk factors(monogenic and polygenic)for VTE.METHODS Incident VTE was followed for 8465 IBD patients in the UK Biobank(UKB).The associations of VTE with F5 factor V leiden(FVL)mutation,F2 G20210A prothrombin gene mutation(PGM),and polygenic score(PGS003332)were tested using Cox hazards regression analysis,adjusting for age at IBD diagnosis,gender,and genetic background(top 10 principal components).The performance of genetic risk factors for discriminating VTE diagnosis was estimated using the area under the receiver operating characteristic curve(AUC).RESULTS The overall proportion of incident VTE was 4.70%in IBD patients and was similar for CD(4.46%),UC(4.49%),and unclassified(6.42%),and comparable to that of cancer patients(4.66%)who are well-known at increased risk for VTE.Mutation carriers of F5/F2 had a significantly increased risk for VTE compared to non-mutation carriers,hazard ratio(HR)was 1.94,95%confidence interval(CI):1.42-2.65.In contrast,patients with the top PGS decile had a considerably higher risk for VTE compared to those with intermediate scores(middle 8 deciles),HR was 2.06(95%CI:1.57-2.71).The AUC for differentiating VTE diagnosis was 0.64(95%CI:0.61-0.67),0.68(95%CI:0.66-0.71),and 0.69(95%CI:0.66-0.71),respectively,for F5/F2 mutation carriers,PGS,and combined.CONCLUSION Similar to cancer patients,VTE complications are common in IBD patients.PGS provides more informative risk information than F5/F2 mutations(FVL and PGM)for personalized thromboprophylaxis.Andrew S Rifkin Zhuqing Shi Jun Wei Siqun Lilly Zheng Brian T Helfand Jonathan S Cordova Vincent F Biank Alfonso J Tafur Omar Khan Jianfeng Xu 2023World Journal of Gastroenterology2023,29,39:1
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