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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 | Prevalence of Barrett's esophagus in patients with moderate to severe erosive esophagitis显示文摘AIM: To investigate the proportion of patients with moderate-severe erosive esophagitis (EE) who will have Barrett's esophagus (BE) after healing of inflammation. METHODS: Patients with EE of Los Angeles (LA) class B, C and D who underwent follow-up endoscopy documenting complete mucosal healing. RESULTS: A total of 86/169 patients were suspected of having BE (38 before healing and 48 after healing of EE) and, 46/86 eventually had the histological confirmation. At index esophago-gastro-duodenoscopy (EGD), BE was suspected in 38/169 (22%), and ultimately, histologically confirmed in 20 of these. In 11 patients where biopsies were performed in the presence of inflammation, BE was detected in 2 and missed in 5 (including 2 dysplasias). In 131/169 patients (77.5%), BE was not suspected at index EGD. After healing of EE though, 48 patients had suspicion of BE who underwent biopsies, and in 26 of these histology was positive for BE. The length of inflammation had a linear correlation with the length of BE (P = 0.01). Out of multiple variables to predict BE, only the suspicion at index endoscopy was statistically significant (P = 0.01). CONCLUSION: BE was seen in 46/169 (27%) patients with EE of LA class B, C and D. The length of EE can predict the length of underlying BE segment.Even when suspected, BE and associated dysplasia can be missed in the presence of inflammation; therefore, repeat evaluation should be considered after complete healing of esophagitis. | Nooman Gilani Richard D Gerkin Francisco C Ramirez Shahina Hakim Adam C Randolph | 2008 | World Journal of Gastroenterology2008，14，22： | 2 |
| 3 | Polyp detection rates using magnification with narrow band imaging and white light显示文摘AIM: To compare the yield of adenomas between narrow band imaging and white light when using high definition/magnification. METHODS: This prospective, non-randomized comparative study was performed at the endoscopy unit of veteran affairs medical center in Phoenix, Arizona. Consecutive patients undergoing first average risk colorectal cancer screening colonoscopy were selected. Two experienced gastroenterologists performed all the procedures that were blinded to each other's findings. Demographic details were recorded. Data are presented as mean ± SEM. Proportional data were compared using the χ2 test and means were compared using the Student's t test. Tandem colonoscopy was performed in a sequential and segmental fashion using one of 3 strategies: white light followed by narrow band imaging [Group A: white light(WL) → narrow band imaging(NBI)]; narrow band imaging followed by white light(Group B: NBI → WL) and, white light followed by white light(Group C: WL → WL). Detection rate of missed polyps and adenomas were evaluated in all three groups. RESULTS: Three hundred patients were studied(100 in each Group). Although the total time for the colonoscopy was similar in the 3 groups(23.8 ± 0.7, 22.2 ± 0.5 and 24.1 ± 0.7 min for Groups A, B and C, respectively), it reached statistical significance between Groups B and C(P < 0.05). The cecal intubation time in Groups B and C was longer than for Group A(6.5 ± 0.4 min and 6.5 ± 0.4 min vs 4.9 ± 0.3 min; P < 0.05). The withdrawal time for Groups A and C was longer than Group B(18.9 ± 0.7 min and 17.6 ± 0.6min vs 15.7 ± 0.4 min; P < 0.05). Overall miss rate for polyps and adenomas detected in three groups during the second look was 18% and 17%, respectively(P = NS). Detection rate for polyps and adenomas after first look with white light was similar irrespective of the light used during the second look(WL → WL: 13.7% for polyps, 12.6% for adenomas; WL → NBI: 14.2% for polyps, 11.3% for adenomas). Miss rate of polyps and adenomas however was significantly higher when NBI was used first(29.3% and 30.3%, respectively; P < 0.05). Most missed adenomas were ≤ 5 mm in size. There was only one advanced neoplasia(defined by size only) missed during the first look. CONCLUSION: Our data suggest that the tandem nature of the procedure rather than the optical techniques was associated with the detection of additional polyps' and adenomas. | Nooman Gilani Sally Stipho James D Panetta Sorin Petre Michele A Young Francisco C Ramirez | 2015 | World Journal of Gastrointestinal Endoscopy2015，7，5： | 2 |
| 4 | Microstructure evolution associated with adiabatic shear bands and shear band failure in baUistic plug formation in Ti-6A1-4V targets 显示文摘 | Murr L E Ramirez A C Gaytan S M Lopez M I Martinez E Y Hernandez D H Martinez E | 2009 | Materials Science and Engineering A2009，516，： | 1 |
| 5 | Synthesis and properties of hydrophilic networks based on poly (ethylene glycol) and β-eyclodextrin 显示文摘 | Luis C Camilo A Ramirez D | 2007 | Macromol Chem Phys2007，208，8： | 1 |
| 6 | A unified mecha- nism for the formation of oscillation marks 显示文摘 | Ramirez L P E Mills K C Lee P D | 2012 | Metallurgical and Materials Transactions2012，43，1： | 1 |
| 7 | Defects in carbon nanotubes显示文摘 | ZHOU O FLEMING R M MURPHY D W CHEN C H HADDON R C RAMIREZ A P GLARUM S H | 1994 | Science1994，263，： | 1 |
| 8 | Glycemie control and cardiopulrnonary function in patients with insulin-dependent diabetes mellitus 显示文摘 | Niranjan V McBrayer D G Ramirez L C | 1997 | Am J Med1997，103，6： | 1 |
| 9 | 查看详情显示文摘 | Hebard A E Rosseinsky M J Haddon R C Murphy D W Glarum S H Palstra T T M Ramirez A P Kortan A R | | 0，，： | 1 |
| 10 | Identification of genes reg- ulated by transcription factor KLF7 in differentiating olfactory sensory neurons 显示文摘 | Kajimura D Dragomir C Ramirez F | 2007 | Gene2007，388，12： | 1 |
| 11 | Insulin therapy is associated with platelet dysfunction in patients with type 2 diabetes mellitus on dual oral antiplatelet treatment显示文摘 | Angiolillo D J Bernardo E Ramirez C | 2006 | J Am Coil Cardiol2006，48，2： | 1 |
| 12 | Phosphorus stress in common bean: root transcript and metabolic, responses 显示文摘 | Hern6ndez G Ramirez M Valdes-L6pez O Tesfaye M Graham M A Czechowski T Schlereth A Wandrey M Erban A Cheung F Wu H C Lara M Town C D Kopka J Udvardi M K Vance C P | 2007 | Plant Physiol2007，144，： | 1 |
| 13 | Induction of redox changes,inducible nitric oxide synthase and cylooxygenase-2 by chronic cadmium exposure in mouse peritoneal macrophages显示文摘 | RAMIREZ D C GIMENEZ M S | 2003 | Toxicol Lett2003，145，2： | 1 |
| 14 | Novel antimycobacterial benzoxazole alkaloids,from the west Indian Sea whip Pseudopterogorgia elisabethae显示文摘 | Rodriguez A D Ramirez C Rodriguez I I | 1999 | Org Lett1999，1，3： | 1 |
| 15 | Artificial family selection based on growth rate in cultivated lines of Litopenaeus vannamei ( Decapoda, Penaeidae) from Venezuela 显示文摘 | Donato M D Ramirez R Howell C | 2008 | Genetics and Molecular Biology2008，31，4： | 1 |
| 16 | Insulin therapy is associated with platelet dysfunction in patients with type 2diabetes mellitus on dual oral antiplatelet treatment显示文摘 | ANGIOLILLO D J BERNARDO E RAMIREZ C | 2006 | J Am Coll Cardiol2006，48，： | 1 |
| 17 | Insulin therapy is as- sociated with platelet dysfunction in patients with type 2 diabetes mellitus on dual oral antiplatelet treatment 显示文摘 | Angiolillo D J Bernardo E Ramirez C | 2006 | J Am Coll Cardiol2006，48，2： | 1 |
| 18 | Generation of internal waves over a shelf显示文摘 | Ramirez C Renouard D | 1998 | Dynamics of atmospheres and oceans1998，28，2： | 1 |
| 19 | Accurate and fast convergence method for parameter estimation of PV generators based on three main points of the I-V curve显示文摘 | Carrero C Ramirez D Rodriguez J | 2011 | Renewable Energy2011，36，11： | 1 |
| 20 | Prefrontal cortical regulation of drug seeking in animal models of drug relapse 显示文摘 | Lasseter H C Xie X Ramirez D R | 2010 | Curt Top Behav Neurosci2010，，3： | 1 |
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