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| 1 | 气象卫星云图的多分辨小波分解及人工神经网络降水估计研究显示文摘采用多分辨小波分析对卫星图象进行预处理 ,在保留其特征信息的同时 ,减小了数据量 ,改善了神经网络训练过程的收敛性能 ,提高了处理速度。采用这一方法根据 GOES- 8的红外亮温图象和气象雷达资料对巴西圣保罗州中部的降水量估计进行了试验 ,取得了良好的效果。 | 李伟钢 Maria C V Ramirez Nelson J Ferreira 石立华 Leonardo D de A Sá | 2000 | 南京气象学院学报2000，23，2： | 13 |
| 2 | Free-breathing radial volumetric interpolated breathhold examination vs breath-hold cartesian volumetric interpolated breath-hold examination magnetic resonance imaging of the liver at 1.5T显示文摘AIM: To compare breath-hold cartesian volumetric interpolated breath-hold examination(cVIBE) and freebreathing radial VIBE(rVIBE) and determine whether rVIBE could replace cVIBE in routine liver magnetic resonance imaging(MRI).METHODS: In this prospective study, 15 consecutive patients scheduled for routine MRI of the abdomen underwent pre- and post-contrast breath-hold cVIBE imaging(19 s acquisition time) and free-breathing rVIBE imaging(111 s acquisition time) on a 1.5T Siemens scanner. Three radiologists with 2, 4, and 8 years post-fellowship experience in abdominal imaging evaluated all images. The radiologists were blinded to the sequence types, which were presented in a random order for each patient. For each sequence, the radiologists scored the cVIBE and rVIBE images for liver edge sharpness, hepatic vessel clarity, presence of artifacts, lesion conspicuity, fat saturation, and overall image quality using a five-point scale. RESULTS: Compared to rVIBE, cVIBE yielded significantly(P < 0.001) higher scores for liver edge sharpness(mean score, 3.87 vs 3.37), hepatic-vessel clarity(3.71 vs 3.18), artifacts(3.74 vs 3.06), lesion conspicuity(3.81 vs 3.2), and overall image quality(3.91 vs 3.24). cVIBE and rVIBE did not significantly differ in quality of fat saturation(4.12 vs 4.03, P = 0.17). The inter-observer variability with respect to differences between rVIBE and cVIBE scores was close to zero compared to random error and inter-patient variation. Quality of rVIBE images was rated as acceptable for all parameters. CONCLUSION: rVIBE cannot replace cVIBE in routine liver MRI. At 1.5T, free-breathing rVIBE yields acceptable, although slightly inferior image quality compared to breath-hold cVIBE. | Sireesha Yedururi HyunSeon C Kang Wei Wei Nicolaus A Wagner-Bartak Leonardo P Marcal R Jason Stafford Brandy J Willis Janio Szklaruk | 2016 | World Journal of Radiology2016，8，7： | 9 |
| 3 | Bipolar transurethral resection of prostate: clinical and urodynamic evaluation显示文摘 | Iori F Franco G Leonardo C Laurenti C Tubaro A D-Amico F | 2008 | Urology2008，71，： | 1 |
| 4 | Bipolar transurethral resection of prostate: clinical and urodynamic evaluation 显示文摘 | IORI F FRANCO G LEONARDO C | 2008 | Urology2008，71，2： | 1 |
| 5 | Photoeatalytie reduction of Ph ( 1I ) over TiOz:New insights on the effect of different electron donors 显示文摘 | Leonardo M Flavio C Gabriela L | 2008 | Applied Catalysis B : Environmental2008，84，34： | 1 |
| 6 | Bipolar transurethral resection of prostate : clinical and urodynamic evaluation 显示文摘 | IORI F FRANCO G LEONARDO C | 2008 | J Urol2008，71，2： | 1 |
| 7 | Fractional retention of technetium-99m-sestamibi as an index of P-glycoprotein expression in untreated breast cancer patients显示文摘 | Silvana DV Andrea C Leonardo P | 1997 | J Nucl Med1997，38，9： | 1 |
| 8 | Prostatic capsule and seminal vesicle-sparing cystectomy: im- proved functional results, inferior oncologic outcome 显示文摘 | Simone G Papalia R Leonardo C | 2008 | Urology2008，72，1： | 1 |
| 9 | Solid-phase synthesis and insights into structure activity relationships of safinamide analogues as potent and selective inhibitors of type B monoamine oxidase 显示文摘 | Francesco L Carmelida C Leonardo P | 2007 | JMed Chem2007，50，20： | 1 |
| 10 | Speciation of phosphorus fractionation in river sediments by explanatory data analysis显示文摘 | KATSAOUOS C Z GIOKAS D L LEONARDOS I D | 2007 | Water Research2007，41，2： | 1 |
| 11 | Tri_haloisocyanuric acids as convenient reagents for regios-elective halogenation of 6-dicarbonyl compounds显示文摘 | Cabriela F M’ Haryadylla C S Leonardo S de A | 2009 | Tetrahedron Lett2009，50，： | 1 |
| 12 | Land surface temperature retrieval from LANDSAT TM5显示文摘 | José A Sobrino Juan C Jiménez-Muoz Leonardo Paolini | 2004 | Remote Sens Environ2004，90，4： | 1 |
| 13 | Incidence of liver roxicity in HIV2 infected patients receiving isolated dual nucleo side analogue antitreroviral therapy显示文摘 | Gabr iella V Leonardo C Roberto M | 2003 | JA IDS2003，33，4： | 1 |
| 14 | Numerical roodel of electromagnetic stirring for continuous casting billets 显示文摘 | Leonardo B Trindade Antonio C F Vilela | 2002 | IEEE Transactions on Magnetics2002，38，6： | 1 |
| 15 | Land surface temperature retrieval from LANDSAT TM 5显示文摘 | SOBRINO J A JIMENEZ-MUNOZ J C LEONARDO P I | 2004 | Remote Sensing of Environment2004，90，： | 1 |
| 16 | C erb-2 gene amplification and chromosomal anomalies in bladder cancer: preliminary resuhs显示文摘 | Leonardo C Merola R Orlandi G | 2005 | J Exp Clin Cancer Res2005，24，4： | 1 |
| 17 | Genetic instability in superficial bladder cancer and adjacent mucosa:an interphase cytogenetic study显示文摘 | Cianciulli AM Leonardo C Guadaqni F | | 0，，03： | 1 |
| 18 | Minimally -in- vasive alternatives in the treatment of distal articular tibial fractures 显示文摘 | Manuel P Natalio C Leonardo L | 2012 | Fuβ&Sprunggelenk2012，10，1： | 1 |
| 19 | Laparoscopic transperitoneal right adrenalectomy for large tumors显示文摘 | Papalia R Simone G Leonardo C | 2008 | Urol Int2008，81，4： | 1 |
| 20 | Early transmission dynamics of COVID-19 in a southern hemisphere setting:Lima-Peru:February 29^(th)-March 30^(th),2020显示文摘The COVID-19 pandemic that emerged in Wuhan China has generated substantial morbidity and mortality impact around the world during the last four months.The daily trend in reported cases has been rapidly rising in Latin America since March 2020 with the great majority of the cases reported in Brazil followed by Peru as of April 15th,2020.Although Peru implemented a range of social distancing measures soon after the confirmation of its first case on March 6th,2020,the daily number of new COVID-19 cases continues to accumulate in this country.We assessed the early COVID-19 transmission dynamics and the effect of social distancing interventions in Lima,Peru.We estimated the reproduction number,R,during the early transmission phase in Lima from the daily series of imported and autochthonous cases by the date of symptoms onset as of March 30th,2020.We also assessed the effect of social distancing interventions in Lima by generating short-term forecasts grounded on the early transmission dynamics before interventions were put in place.Prior to the implementation of the social distancing measures in Lima,the local incidence curve by the date of symptoms onset displays near exponential growth dynamics with the mean scaling of growth parameter,p,estimated at 0.96(95%CI:0.87,1.0)and the reproduction number at 2.3(95%CI:2.0,2.5).Our analysis indicates that school closures and other social distancing interventions have helped slow down the spread of the novel coronavirus,with the nearly exponential growth trend shifting to an approximately linear growth trend soon after the broad scale social distancing interventions were put in place by the government.While the interventions appear to have slowed the transmission rate in Lima,the number of new COVID-19 cases continue to accumulate,highlighting the need to strengthen social distancing and active case finding efforts to mitigate disease transmission in the region. | César V.Munayco Amna Tariq Richard Rothenberg Gabriela G.Soto-Cabezas Mary F.Reyes Andree Valle Leonardo Rojas-Mezarina César Cabezas Manuel Loayza Gerardo Chowell 无 | 2020 | Infectious Disease Modelling2020，5，1： | 1 |
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