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1075篇 您的检索式:作者名="THOMAS W M"
    题名 作者 年代 出处 被引量
1抑制平滑肌的张力收缩:一种治疗勃起功能障碍的新途径显示文摘阴茎海绵体血管的收缩及张力的维持是由钙敏感的RhoA/Rho激酶信号传导途径介导的。以Y 2 76 32抑制海绵体平滑肌细胞的Rho激酶信号系统可促进阴茎勃起 ,表现为海绵体内压 (ICP)明显升高 ,而平均动脉压 (MAP)变化不显著。为什么在血管收缩信号很强的情况下性刺激仍能引发阴茎勃起反应 ?我们设想体内一氧化氮 (NO)能直接抑制RhoA/Rho激酶途径的活性 ,减少血管张力 ,促使血管舒张 ,勃起发生 ,使用Y 2 76 32可以恢复性腺功能低下和高血压病动物ED模型的阴茎勃起功能 ,这表明抑制Rho激酶活性药物具有临床应用的前景。此外 ,我们的结果显示阴茎表面使用Rho激酶抑制剂可能为ED治疗的有效方法之一。戴玉田 Thomas M MILLS Ronald W LEWIS RClinton WEBB 2002中华男科学杂志2002,8,6:8
2肾动脉内支架成形术的临床应用显示文摘目的:对肾动脉阻塞性病变采用Palmaz内支架进行治疗,并对其临床远期疗效进行前瞻性、非随机研究分析。材料与方法:7例(26%)为经皮肾动脉气囊成形术(PTRA)治疗失败者,13例(48%)为PTRA后病变再狭窄,4例(15%)为PTRA后出现并发症,3例(11%)为肾动脉开口处狭窄直接作内支架治疗。共有4枚Palmaz内支架、5枚Palmaz-Schats节段性内支架及18枚Palmaz中号内支架被用于本组病例,内支架透视导向下用气囊导管及8F导引鞘释放到靶血管段。结果:技术成功率为100%(残余狭窄<30%),未发生严重并发症,病变两端平均压差从6.8±1.5kPa(1kPa=7.5mmHg)降至0kPa(P<0.05),随访结果(3~32个月,平均10±6个月)显示4例治愈,20例缓解,总有效率89%,平均收缩压从术前24.8±3.0kPa降至18.9±2.0kPa,舒张压从14.7±1.3kPa降至11.3±1.5kPa(P<0.05),6例肾功能衰竭病人中有2例术后肾功能改善,另4例稳定不变,2例分别于术后3、18个月出现病变内再狭窄,但未出现临床症状,病变两端压力差改变不显著。结论:常规PTRA?杨建勇 Thomas Roeren Goetz M Richter Goetz W Kaufmann 1996中华放射学杂志1996,30,5:8
3ACC/AHA guidelines for the management of patients with unstable angina and non–st-segment elevation myocardial infarction显示文摘Eugene Braunwald Elliott M Antman John W Beasley Robert M Califf Melvin D Cheitlin Judith S Hochman Robert H Jones Dean Kereiakes Joel Kupersmith Thomas N Levin Carl J Pepine John W Schaeffer Earl E Smith David E Steward Pierre Theroux Raymond J Gibbons J 2000Journal of the American College of Cardiology2000,,3:4
4Multiband emission from single β-NaYF_(4)(Yb,Er) nanoparticles at high excitation power densities and comparison to ensemble studies显示文摘Ensemble and single particle studies of the excitation power density (P)-dependent upconversion luminescence (UCL) of core and core-shell β-NaYF_(4):Yb,Er upconversion nanoparticles (UCNPs) doped with 20% Yb^(3+) and 1% or 3% Er^(^(3+)) performed over a P regime of 6 orders of magnitude reveal an increasing contribution of the emission from high energy Er^(3+) levels at P > 1 kW/cm^(2). This changes the overall emission color from initially green over yellow to white. While initially the green and with increasing P the red emission dominate in ensemble measurements at P < 1 kW/cm^(2), the increasing population of higher Er^(^(3+)) energy levels by multiphotonic processes at higher P in single particle studies results in a multitude of emission bands in the ultraviolet/visible/near infrared (UV/vis/NIR) accompanied by a decreased contribution of the red luminescence. Based upon a thorough analysis of the P-dependence of UCL, the emission bands activated at high P were grouped and assigned to 2–3, 3–4, and 4 photonic processes involving energy transfer (ET), excited-state absorption (ESA), cross-relaxation (CR), back energy transfer (BET), and non-radiative relaxation processes (nRP). This underlines the P-tunability of UCNP brightness and color and highlights the potential of P-dependent measurements for mechanistic studies required to manifest the population pathways of the different Er^(3+) levels.Florian Frenzel Christian Würth Oleksii Dukhno Frédéric Przybilla Lisa MWiesholler Verena Muhr Thomas Hirsch Yves Mély Ute Resch-Genger 2021Nano Research2021,14,11:3
5Improvements to NOAA’s Historical Merged Land-Ocean Surface Temperature Analysis (1880-2006)显示文摘Smith Thomas M Reynolds Richard W Peterson Thomas C Lawrimore Jay Journal of Climate0,,:3
6Diagnostic accuracy of tests for Helicobacter pylori in an Alaska Native population显示文摘AIM:To evaluate the accuracy of two non-invasivetests in a population of Alaska Native persons. Highrates of Helico bacter pylori(H. pylori) infection,H. pylori treatment failure,and gastric cancer in this population necessitate documentation of infection status atmultiple time points over a patient's life.METHODS:In 280 patients undergoing endoscopy,H. pylori was diagnosed by culture,histology,rapidurease test,13C urea breath test(UBT) ,and immuno-globulin G antibodies to H. pylori in serum. The performances of 13C-UBT and antibody test were compared to a gold standard defined by a positive H. pylori testby culture or,in case of a negative culture result,bypositive histology and a positive rapid urease test.RESULTS:The sensitivity and specificity of the 13C-UBT were 93% and 88%,respectively,relative to thegold standard. The antibody test had an equivalents ensitivity of 93% with a reduced specificity of 68%.The false positive results for the antibody test were as-sociated with previous treatment for an H. pylori infection [relative risk(RR) = 2.8]. High levels of antibodiesto H. pylori were associated with chronic gastritis and male gender,while high scores in the 13C-UBT testwere associated with older age and with the H. pyloribacteria load on histological examination(RR = 4.4) .CONCLUSION:The 13C-UBT out performed the anti-body test for H. pylori and could be used when a non-invasive test is clinically necessary to document treatment out come or when monitoring for reinfection.Dana L Bruden Michael G Bruce Karen M Miernyk Julie Morris Debby Hurlburt Thomas W Hennessy Helen Peters Frank Sacco Alan J Parkinson Brian J McMahon 2011World Journal of Gastroenterology2011,17,42:3
7Comparison of real-time ionospheric algorithms for a GPS wide-area augmentation system (WAAS)显示文摘M Bakry El-Arini Robert S Conker Thomas W Albertson 1994Navigation(US)1994,41,4:2
8一种房颤风险评分系统的建立(Framingham心脏研究):基于社区的队列研究显示文摘背景房颤导致了发病率和病死率的显著上升。本研究旨在建立一种预测个体罹患房颤绝对风险的风险评分系统,并提供研究人员评价新危险因素的流程。方法作者评估了Framingham心脏研究中于1968年6月至1987年9月间进行了8044次检测的4764例参与者(55%为女性,年龄45~95岁)。此后,参与者被随访至房颤首发,随访期最长达10年。多变量Coxi回归确认出1(1年内罹患房颤的临床危险因素。次级分析纳入了常规超声心动图检测指标(5152例4参与者,7156次检测)对房颤风险进行再分层评估,并评价超声检测指标能否提高风险预测能力。结果4764例参与者中的457例4(10%)罹患房颤。年龄、性别、体重指数、收缩压、降压治疗、PR间期、有临床意义的心脏杂音及心力衰竭与房颤相关,并被纳入了风险评分模型(除体重指数P=0.08外,其余均为P〈0.05),模型的C统计量为0.78(95%CI0.76~0.80)。10年房颤风险随年龄变化:年龄〈65岁的人群中53例(1%)风险高于15%,而〉65岁的人群中为783例(27%)。为提高预测能力而纳入超声检测指标仅使模型C统计量略微增高,由0.78(95%C10.75~0.80)增至0.79(95%CI0.77~0.82:P=0.005)。超声心动图检测指标并不能改善风险再分层评估(P=0.18)。结论基于社区医疗中易得的临床因素建立的风险评分系统,有助于确认社区个体罹患房颤的风险,评估技术或标志物能否改善风险预测,以及针对高危个体采取预防措施。Renate B Schnabel Lisa M Sullivan Daniel Levy Michael J Pencina Joseph M Massaro Ralph B D'Agostino Sr Christopher Newton-Cheh Jennifer F Yamamoto Jared W Magnani Thomas M Tadros William B Kannel Thomas J Wang Patrick T Ellinor Philip A Wolf Ramachanclran S Vasan Emelia J Benjamin 黄刚(译) 2009世界临床医学2009,,9:2
9Long-term outcomes of autoimmune pancreatitis: a multicentre, international analysis显示文摘Phil A Hart Terumi Kamisawa William R Brugge Jae Bock Chung Emma L Culver László Czakó Luca Frulloni Vay Liang W Go Thomas M Gress Myung-Hwan Kim Shigeyuki Kawa Kyu Taek Lee Markus M Lerch Wei-Chih Liao Matthias L?hr Kazuichi Okazaki Ji Kon Ryu Nicolas Sc 2013Gut2013,,12:2
10Combined evaluation of a panel of protein and miRNA serum‐exosome biomarkers for pancreatic cancer diagnosis increases sensitivity and specificity显示文摘Bindhu Madhavan Shijing Yue Uwe Galli Sanyukta Rana Wolfgang Gross Miryam Müller Nathalia A. Giese Holger Kalthoff Thomas Becker Markus W Büchler Margot Z?ller 2015Int. J. Cancer2015,,11:2
11Intra-and inter-specific mitochondrial DNA sequences divergence in salmo:rainbow,steelhead,and cutthroat trouts显示文摘Wilson G M Thomas W K Beckenbach A T 1985Can J Zool1985,,63:2
12Synthesis, characterization and catalytic activity of ZSM-5 zeolites having variable silicon-to-aluminum ratios显示文摘Ali M A Brisdon B Thomas W J 2003Applied Catalysis A: General2003,252,:1
13Effect of particulate materials and osmoprotectants on very-high-gravity ethanolic fermentation by Saccharomyces cerevisiae显示文摘Thomas K C Hynes S H Ingledew W M 1994Applied and EnvironmentalMicrobiology1994,60,5:1
14Improved acid neutralisation capacity assessment of iron carbonates by titration and theoretical calculation显示文摘Weber P A Thomas J E Skinner W M 2004Applied Geochemistry2004,19,:1
15Quantitation of asbestos in synthetic mixtures using instrumental neutron activation analysis 显示文摘Pravin P P Richard J J James S W Thomas M S 1992Analytical Chemistry1992,64,3:1
16Post-collisional magmatism in the central East African orogen: The Maevarano suite of north Madagascm显示文摘Goodenough K M Thomas R J De Waele B Key R M Schofield D I Bauer W Tucker R D Kafahatelo J M Rabrimanana M Ralison A V Randriamananjma T 2010Lithos2010,116,12:1
17Solubilization of benzodiazepine binding site from rat cortex 显示文摘YOUSUFI M A K THOMAS J W TALLMAN J F 1979Life Sci1979,25,5:1
18Friction stir welding for the transportation industries 显示文摘Thomas W M Nicholas E D 1997Materials and Design1997,18,6:1
19Friction stir process welds aluminum alloys显示文摘Dawes C J Thomas W M 1996Welding Journal1996,75,3:1
20Non-structural Fuzzy Decision Support System for Evaluation of Construction Safety Management System显示文摘Tam C M Tong Thomas K L Chiu Gerald C W Fung Ivan W H 2002International Journal of Project Management2002,,20:1
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