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| 1 | 精密单点定位整周模糊度快速固定显示文摘提出利用GPS参考网估计电离层延迟、卫星相位偏差的算法,用于实现区域内精密单点定位(Precise Point Positioning,PPP)的整周模糊度快速固定.利用站间距约为100~200km的参考网进行实验,结果表明:电离层延迟的内插和外推精度均优于1dm,卫星相位偏差估值的日内变化不超过0.2周;此外,单天内不同时刻始,固定PPP整周模糊度所需时长最多不超过10min,且当模糊度成功固定后,三维位置解较之相应浮点解的精度改善优于80%.新算法可望解决PPP普遍存在的收敛时间过长问题,增强了PPP技术的实用性. | 张宝成 Teunissen J G Peter Odijk Dennis 欧吉坤 蒋振伟 | 2012 | 地球物理学报2012，55，7： | 10 |
| 2 | Effect of prophylactic clip placement following endoscopic mucosal resection of large colorectal lesions on delayed polypectomy bleeding: A meta-analysis显示文摘BACKGROUND The role of prophylactic clipping for the prevention of delayed polypectomy bleeding(DPB) remains unclear and conclusions from prior meta-analyses are limited due to the inclusion of variety of resection techniques and polyp sizes.AIM To conduct a meta-analysis on the effect of clipping on DPB following endoscopic mucosal resection(EMR) of colorectal lesions ≥ 20 mm.METHODS We performed a search of PubMed and the Cochrane library for studies comparing the effect of clipping vs no clipping on DPB following endoscopic resection. The Cochran Q test and I^2 were used to test for heterogeneity. Pooling was conducted using a random-effects model.RESULTS Thirteen studies with a total of 7794 polyps were identified, of which data was available on 1701 cases of EMR of lesions ≥ 20 mm. Prophylactic clipping was associated with a lower rate of DPB(1.4%) when compared to no clipping(5.2%)(pooled OR: 0.24, 95%CI: 0.12-0.50, P < 0.001) following EMR of lesions ≥ 20 mm.There was no significant heterogeneity among the studies(I^2 = 0%, P = 0.67).CONLUSION Prophylactic clipping may reduce DPB following EMR of large colorectal lesions.Future trials are needed to further identify risk factors and stratify high risk cases in order to implement a cost-effective preventive strategy. | Fares Ayoub Donevan R Westerveld Justin J Forde Christopher E Forsmark Peter V Draganov Dennis Yang | 2019 | World Journal of Gastroenterology2019，25，18： | 9 |
| 3 | Bleeding outcomes after non-emergency percutaneous coronary intervention in the very elderly显示文摘BackgroundOctogenarians 组成病人为经皮的冠的干预(一种总线标准).MethodsThis 学习评估了的非紧急情况介绍的一个增加的比例在里面医院程序的特征和结果,包括为非紧急情况一种总线标准在 2010 年 1 月和 2012 年 12 月之间介绍给单个大体积的 293 octogenarians 的流血事件第三级的照顾澳大利亚人中心。比较被做, 293 个连续病人,其损害与心肌的梗塞是的 octogenarians.ResultsNon 圣举起被匹配小于等于 60 年变老为在 octogenarians 的非紧急情况一种总线标准的最经常的指示。比作更年轻的队,他们有合作病态和更复杂的冠的疾病的更高的流行,包括更多的类型 C 和钙化的损害。低分子的重量肝磷脂的仙子程序的使用(LMWH;1.0% 对 5.8% ;P < 0.001 ) 并且 glycoprotein IIb/IIIa 禁止者(2.1% 对 9.6% ;P < 0.001 ) 更低,当大腿骨的动脉的存取比在更年轻的病人更通常被使用时(80.9% 对 67.6% ;P < 0.001 ) 。总的来说,向所有流血事件在的更高的发生有一个不重要的趋势老(9.2% 对 5.8% ;P = 0.12 ) 。在存取地点或非存取地点流血和专业或在二个队之间的次要的流血没有重要差别。亚分析没在由 LMWH, glycoprotein IIb/IIIa 禁止者或大腿骨的动脉的存取的使用为率放血上揭示任何重要影响。另外,处于在二 groups.ConclusionsIn 之间的在里面医院死亡,击或尖锐 stent 血栓的率没有重要差别这单个中心研究,我们没包括在经历非紧急情况一种总线标准的 octogenarians 流血的发生在不利在里面医院结果观察重要增加。 | Vimalraj Bogana Shanmugam Dennis T Wong Hashrul Rashid James D Cameron Yuvaraj Malaiapan Peter J Psaltis | 2017 | Journal of Geriatric Cardiology2017，14，10： | 3 |
| 4 | Expression Profiling Identifies Candidate Genes for Fiber Yield and Quality显示文摘Gene expression profiling at early stages(0~2 DPA) of fiber development in Gossypium hirsutum identified a number of transcription factors which were down regulated in fiberless mutants relative to wild type controls and which could play a role in controlling early fiber development.Chief among these was GhMYB25,a Mixta-like MYB gene.Transgenic GhMYB25-silenced cotton | LLEWELLYN D J MACHADO A AI-GHAZI Y DENNIS E S | 2008 | 棉花学报2008，20，S1： | 3 |
| 5 | Acoustic measurements of models of military style supersonic nozzle jets显示文摘Modern military aircraft jet engines are designed with variable-geometry nozzles to provide optimal thrust in different operating conditions,depending on the flight envelope. However,acoustic measurements for such nozzles are scarce,due to the cost involved in making fullscale measurements and the lack of details about the exact geometries of these nozzles. Thus the present effort at Pennsylvania State University(PSU) in partnership with GE Aviation and the NASA Glenn Research Center is aiming to study and characterize the acoustic field produced by supersonic jets issuing from converging-diverging military style nozzles,and to identify and test promising noise reduction techniques. An equally important objective is to develop methodology for using data obtained from small- and moderate-scale experiments to reliably predict the full-scale engine noise. The experimental results presented show reasonable agreement between small-scale and medium-scale jets,as well as between heated jets and heat-simulated ones. | Ching-Wen Kuo Jérémy Veltin Dennis K.McLaughlin | 2014 | Chinese Journal of Aeronautics2014，27，1： | 2 |
| 6 | 地中海膳食干预研究中来自胆碱通路的血浆代谢物与心血管病风险的关系显示文摘血浆甜菜碱水平以及胆碱代谢水平与主要心血管病终点之间的联系仍不清楚。研究者评估了胆碱通路的代谢物与偶发心血管病风险以及地中海膳食干预的潜在调节效应之间的相关性。 | 黄洁 叶鹏 Guasch-Ferré M Hu FB Ruiz-Canela M Bulló M Toledo E Wang DD Corella D Gómez-Gracia E Fiol M Estruch R Lapetra J Fitó M Arós F Serra-Majem L Ros E Dennis C Liang L Clish CB Martínez-González MA Salas-Salvadó J | 2017 | 中华高血压杂志2017，25，12： | 2 |
| 7 | Precision atomic gravimeter based on Bragg diffraction显示文摘 | P A Altin M T Johnsson V Negnevitsky G R Dennis R P Anderson J E Debs S S Szigeti K S Hardman S Bennetts G D McDonald L D Turner J D Close N P Robins | 2013 | New Journal of Physics2013，，2： | 2 |
| 8 | Survival after inflammatory bowel disease-associated colorectal cancer in the Colon Cancer Family Registry显示文摘AIM: To investigate the survival of individuals with colorectal cancer (CRC) with inflammatory bowel disease (IBD-associated CRC) compared to that of individuals without IBD diagnosed with CRC. METHODS: Epidemiologic, clinical, and follow-up data were obtained from the Colon Cancer Family Registry (Colon CFR). IBD-associated cases were identified from self-report of physician diagnosis. For a subset of participants, medical records were examined to confirm self-report of IBD. Cox proportional hazards regression was applied to estimate adjusted hazard ratios (aHR) and 95%CI of mortality, comparing IBD-associated to non-IBD-associated CRC, adjusted for age at CRC diagnosis, sex, Colon CFR phase, and number of prior endoscopies. Following imputation to complete CRC stage information, adjustment for CRC stage was examined. RESULTS: A total of 7202 CRC cases, including 250 cases of IBD-associated CRC, were analyzed. Over a twelve year follow-up period following CRC diagnosis, 2013 and 74 deaths occurred among non-IBD associated CRC and IBD-associated CRC patients, respectively. The difference in survival between IBD-associated and non-IBD CRC cases was not statistically significant (aHR = 1.08; 95%CI: 0.85-1.36). However, the assumption of proportional hazards necessary for valid inference from Cox regression was not met over the entire follow-up period, and we therefore limited analyses to within five years after CRC diagnosis when the assumption of proportional hazards was met. Over this period, there was evidence of worse prognosis for IBD-associated CRC (aHR = 1.36; 95%CI: 1.05-1.76). Results were similar when adjusted for CRC stage, or restricted to IBD confirmed in medical records. CONCLUSION: These results support the hypothesis that IBD-associated CRC has a worse prognosis than non-IBD-associated CRC. | Scott V Adams Dennis J Ahnen John A Baron Peter T Campbell Steven Gallinger William M Grady Loic LeMarchand Noralane M Lindor John D Potter Polly A Newcomb | 2013 | World Journal of Gastroenterology2013，19，21： | 2 |
| 9 | Fungal slime and its role in the mycorrhizal amelioration of zinc toxicity to higher plants 显示文摘 | Denny H J Ridge I | 1995 | New Phytol1995，130，2： | 2 |
| 10 | No difference in portal and hepatic venous bacterial DNA in patients with cirrhosis undergoing transjugular intrahepatic portosystemic shunt insertion显示文摘 | Christian Mortensen Stine Karlsen Henning Gr?nb?k Dennis T. Nielsen Susanne Frevert Jens O. Clemmesen S?ren M?ller J?rgen S. Jensen Flemming Bendtsen | 2013 | Liver Int2013，，9： | 2 |
| 11 | Effects of intra-abdominal CO2 insufflation in the piglet显示文摘 | Graham Dennis W | 1994 | J Pediatr Surg1994，29，9： | 1 |
| 12 | The dynamic in vivo distribution of bone marrow-derived mesenchymal stem cells after infusion显示文摘 | Gao J Dennis JE Muzic R_F | 2001 | Cells Tissues Organs2001，169，1： | 1 |
| 13 | DNA methylation,a key regulation of plant development and other processes显示文摘 | Finnegan E J Peacock W J Dennis E | 2000 | Curr Opion Genet Develop2000，10，： | 1 |
| 14 | Disrupted mitochondrial electron transport function increases expression of anti-apoptotic bcl-2 and bcl-X (L) proteins in SHSY5Y neuroblastoma and in parkinson disease cybrid cells through oxidative stress显示文摘 | Veech GA Dennis J Keeney PM | 2000 | J Neurosci Res2000，61，： | 1 |
| 15 | Gastrointestinal hemorrhage after acute stroke显示文摘 | Davenport R J Dennis MS Warlow CP | 1996 | Stroke1996，27，3： | 1 |
| 16 | Ethanol production by continuous fermentation - pervaporation: a preliminary economic analysis显示文摘 | Dennis J O' Brien Lorie H Roth Andrew J McAloon | 2000 | Journal of Membrane Science2000，166，： | 1 |
| 17 | Quasi-Newton methods, motivation and theory显示文摘 | Dennis J J More J J | 1977 | SIAM REIEW1977，19，： | 1 |
| 18 | Ki-ras mutation and p53 overexpression predict the clinical behavior of colorectal cancer: a southwest oncology group syudy 显示文摘 | Dennis J Ahene Polly Feigl Gang Quan | 1998 | Cancer research1998，58，： | 1 |
| 19 | An objective technique for evaluating doubletalk detectors in acoustic echo canceller显示文摘 | Cho J H Dennis R M Senesty J | 1990 | IEEE Trans on Speech and Audio Processing1990，4，6： | 1 |
| 20 | Bo-vine citrullinaemia-A clinical,pathological,biochemi-cal and genetic study显示文摘 | HEALY P J HARPER P A W DENNIS J A | 1990 | Aust Vet J1990，67，： | 1 |
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