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急性心肌梗死患者梗死动脉定位、心外膜血流以及直接经皮血运重建后心肌灌注之间的关系

世界核心医学期刊文摘（心脏病学分册） 2006年第11期2卷 15-16页

作者： Kandzari D.E. Tcheng j.E. gersh b.j. 罗亮 Department of Medicine Duke University Medical Center Duke Clinical Research Institute Durham NC United States Dr.

background: The association between infarct artery location, reperfusion success, and clinical outcomes after primary percutaneous coronary intervention(PCI) has not been characterized. We examined the infarct artery-specific impact of epicardial and myocardial flow and reperfusion after primary PCI for acute myocardial infarction. Methods: Among 2082 patients undergoing primary PCI in the CADILLAC trial, myocardial blush grade, TIMI flow grade, ST-segment resolution, and clinical outcomes were analyzed according to the infarct artery. Results: baseline clinical characteristics did not significantly differ between patients experiencing infarction in the left anterior descending(LAD, 37%) versus left circumflex(18%) and right coronary artery(46%) distributions. baseline left ventricular function was reduced, and collateral flow was less commonly present in patients with infarction involving the LAD. Achievement of final TIMI-3 flow, grade 3 myocardial blush, and ST-segment resolution >70%was also significantly less common in anterior infarction. Patients with anterior versus nonanterior infarction had significantly higher mortality at 30 days(3.4%vs 1.3%, P=.0006) and 1 year(6.5%vs 2.9%, Pby multivariate analysis, LAD infarction was a powerful independent predictor of 1-year mortality(odds ratio 2.45, P=.009). Conclusions: Acute myocardial infarction involving the LAD distribution is associated with reduced left ventricular function, less frequent collateral flow, impaired myocardial perfusion and decreased reperfusion success, findings associated with reduced survival, and increased major adverse cardiac events compared with other vascular territories. These data provide mechanistic insights to the adverse prognosis of patients with anterior infarction.

关键词：急性心肌梗死心肌灌注血运重建左室功能非前壁梗死左旋支再梗死前降支不良心脏事件年死亡

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房颤患者中充血性心力衰竭的发生率和死亡风险:一项超过20年的社区研究

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世界核心医学期刊文摘（心脏病学分册） 2006年第9期2卷 23-24页

作者： Miyasaka Y. barnes M.E. gersh b.j. T.S.M.Tsang 苏畅 Division of Cardiovascular Disease and Internal Medicine Mayo Clinic200 First Street SWRochesterMN 55905United States

Aims: We sought to determine whether the incidence of and survival following congestive heart failure(CHF) in patients with atrial fibrillation(AF) have changed over time. Methods and results: Olmsted County, Minnesota residents diagnosed with first AF during 1980-2000 were identified and followed in medical records to 2004. The trends of incidence and survival of CHF over time were assessed. Of the 3288 subjects(mean age 71±15 years) diagnosed with first AF and without CHF prior to or at AF diagnosis, 790(24%) developed a first CHF during a mean follow-up of 6.1±5.2 years(unadjusted incidence, 44 per 1000 person years). Age-and sex-adjusted CHF incidence was unrelated to calendar year of AF diagnosis(P=0.86). The age-and sex-adjusted mortality risk following CHF was higher than that in patients without CHF(hazard ratio 3.4, 95%confidence interval 3.1-3.8, Pble changes over time with respect to the absolute(P=0.94) or the relative(P=0.68) mortality risk after CHF diagnosis. Conclusion: In this study spanning two decades, there appeared to have been no significant reduction in terms of the incidence and mortality risk of CHF following first AF diagnosis.

关键词：充血性心力衰竭死亡风险房颤患者发生率社区研究时间变化平均年龄 CHF

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急性心肌梗死后室性心律失常:一项20年的社区研究

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世界核心医学期刊文摘（心脏病学分册） 2006年第9期2卷 11-11页

作者： Henkel D.M. Witt b.j. gersh b.j. V.L.Roger 刘少伟 Division of Cardiovascular Diseases Mayo Clinic200 First Street SWRochesterMN 55902United StatesDr

background: Although myocardial infarction(MI) severity is declining, the occurrence of ventricular arrhythmia(VA) after MI and its effect on outcome is unknown. This study was undertaken to examine the frequency and timing of VA and the effect of VA on mortality after MI. Methods: Myocardial infarctions recorded between 1979 and 1998 were validated. baseline characteristics, occurrence of VA, and survival were determined. Ventricular arrhythmias were categorized as primary ventricular fibrillation(VF), nonprimary VF, and ventricular tachycardia(VT). Logistic regression was used to analyze associations between VA and baseline characteristics. Temporal trends were assessed with the Mantel-Haenszel χ2. Survival was analyzed with the Kaplan-Meier method. Proportional hazards regression was used to examine the association between death and occurrence of VA. Results: Among 2317 persons with incident MI, 7.5%experienced VA(3.6%nonprimary VF, 2.1%primary VF, 1.8%VT). Ventricular arrhythmia-associated factors were younger age, female sex, higher Killip class, ST elevation, and atrial fibrillation. Ventricular arrhythmias were associated with increased risk of death at 30 days. Conclusions: Ventricular arrhythmias after MI are relatively common, particularly among persons with more severe MI and no prior history of coronary disease. Over time, the incidence of VF declined, whereas VT did not change. Ventricular arrhythmia after MI was associated with a 6-fold increase in morality. Thus, identification of highrisk MI survivors and prevention of VA could markedly improve outcomes. Further studies are needed to determine the cause of the shift in distribution of VA subtype.

关键词：室性心律失常急性心肌梗死后社区研究 Logistic回归方法 Killip分级原发性室颤室性心动过速 Mantel

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因急性心肌梗死行直接血管成形术的患者中侧支血流对心肌再灌注和梗死面积的影响

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世界核心医学期刊文摘（心脏病学分册） 2007年第11期3卷 20-页

作者： Sorajja P. gersh b.j. Mehran R. G.W. Stone 赵君 Columbia University the Cardiovascular Research Foundation New York NY United States Dr.

背景:在接受直接经皮冠状动脉介入(PCI)的患者中,基线时梗死相关动脉(IRA)的侧支血流的预后意义仍存在争论。作者旨在观察在因急性心肌梗死(AMI)行直接PCI的患者中基线IRA侧支血流对再灌注成功率、

关键词：梗死面积心肌梗死侧支血流患者再灌注

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1980—2000年确诊为首次心房纤颤患者缺血性卒中发生率和死亡率的时间趋势:社区研究报道

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世界核心医学期刊文摘（神经病学分册） 2006年第3期2卷 48-48页

作者： Miyasaka Y. barnes M.E. gersh b.j. T.S.M. Tsang 高宗恩 Mayo Clinic 200 First St SW Rochester MN 55905 United States

background and Purpose -With the changes in management of atrial fibrillation (AF) over time, it is possible that the time trends of post-AF stroke incidenc e and mortality have changed. We sought to determine whether the incidence and survival of ischemic stroke after AF diagnosis have improved. Methods -We identified the Olmsted County, Minn, residents who developed first AF from 1980 to 2000 and followed them in medical records to 2004. The outcomes were first ischemic stroke and death. Results -Of the 4117 subjects diagnosed with first AF and without previous stroke, 446 (11%) sustained a first ischemic stroke during a mea n follow-up time of 5.5±5.0 years. The age-and sex-adjusted incidence of str oke decreased, on average, by 3.4%per year (P=0.0001), concurrent with an increase in warfarin and aspirin use (both P blood pressure (P justed ischemic stroke incidence was higher in women (P=0.039), but not after adjusting for systolic blood pressure (P=0.41). Compared with the general Minnesota white population, the relative mortality hazard ratio was 1.88 for men and 1.84 for women without stroke and 3.03 for men and 3.80 for women (P by age or calendar year of AF diagnosis. Conclusions -Post-AF ischemic stroke incidence decreased significantly from 1980 to 2000, during which time a substantial increase in the use of antithrombotic therapy and reduction of systolic blood pressure was evident. The relative mortality risk of stroke, however, had not improved over time.

关键词：心房纤颤患者缺血性卒中时间趋势社区研究卒中发生率死亡风险奥姆斯特德预后指标抗血栓药物

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Female waist-to-hip ratio,body mass index and sexual attractiveness in China

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Current Zoology 2010年第2期56卷 175-181页

作者： b.j. DIXSON baoguo LI A.E DIXSON School of biological Sciences Victoria University of Wellington P O Box 600 Wellington New Zealand College of Life Sciences and Key Laboratory Resource Biology and Biotechnology in Western China Ministry of Education Northwestern University Xi＇an China

Men and women at Northwest University （n=751）, Xi＇an, China were asked to judge the attractiveness of photographs of female patients who had undergone micrograft surgery to reduce their waist-to-hip ratios （WHR）. Micrograft surgery involves harvesting adipose tissue from the waist and reshaping the buttocks to produce a low WHR and an ‘hourglass＇ female figure. This gynoid distribution of female body fat has been shown to correlate with measures of fertility and health. Significantly larger numbers of subjects, of both sexes, chose post-operative photographs, with lower WHRs, as more attractive than pre-operative photographs of the same women. Some patients had gained, and some had lost weight, post-operatively, with resultant changes in body mass index （bMI）. However, these changes in bMI were not related to judgments of attractiveness. These results show that the hourglass female figure is rated as attractive in China, and that WHR, rather than bMI, plays a crucial role in such attractiveness judgments.

关键词： China Waist-to-hip ratio body mass index Female attractiveness Sexual selection

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Exact solution of Schrdinger equation with q-deformed quantum potentials using Nikiforov–Uvarov method

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Chinese Physics b 2013年第11期22卷 166-173页

作者： Falaye b.j. Oyewumi K.j. Abbas M. Theoretical Physics Section Department of Physics University of Ilorin Physics Department Kebbi State University of Science and Technology

In this paper, we present the exact solution of the one-dimensional Schrrdinger equation for the q-deformed quantum potentials via the Nikiforov-Uvarov method. The eigenvalues and eigenfunctions of these potentials are obtained via this method. The energy equations and the corresponding wave functions for some special cases of these potentials are briefly discussed. The PT-symmetry and Hermiticity for these potentials are also discussed.

关键词： Schrōdinger equation q-deformed quantum potential Woods-Saxon potential Nikiforov-Uvarovmethod

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CONTINUOUS STIFFNESS MODE NANOINDENTATION RESPONSE OF POLY(METHYL METHACRYLATE) SURFACES

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Chinese journal of Polymer Science 2013年第8期31卷 1096-1107页

作者： T. Iqbal b.j. briscoe S. Yasin P.F. Luckham Chemical Engineering Department University of Engineering & Technology Chemical Engineering Department Imperial College

Indentation is a comparatively simple and virtually nondestructive method of determining mechanical properties of material surfaces by means of an indenter inducing a localized deformation. The paper present experimental results of the load-displacement curves, the hardness and the elastic modulus data, and associated analysis for poly（methyl methacrylate）（PMMA） surfaces as a function of contact displacement. The experimental results include continuous stiffness indentations performed using constant loading rate and constant displacement rate experiments. The continuous stiffness indentation involves continuous calculation of a material stiffness, and hence hardness and elastic modulus of surfaces, during discrete loading-unloading cycles, as in a conventional indentation routine, and in a comparatively smaller time constant, The dependence of the compliance curves, the hardness, the elastic modulus and the plasticity index upon the imposed penetration depth, the applied normal load and the deformation rate are described. Tip area and load frame calibrations for the continuous stiffness indentation are also reported. The paper includes practical considerations encountered during indentation of polymers specifically at low penetration depths. The experimental results show a peculiarly harder response of PMMA surfaces at the submicron （near to surface） layers.

关键词： Nanoindentation PMMA Hardness Modulus Continuous stiffness.

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INFLUENCE OF THE ALIGNMENT OF TiO_2 NANOPARTICLES ON OPTICAL AND STRUCTURAL PROPERTIES OF POLY(PHENYLENEVINYLENE) FILMS

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Acta Metallurgica Sinica(English Letters) 2002年第1期15卷 104-108页

作者： X. ju j. Zhang b. Y. Wang b.j. Wang bSRF Institute of High Energy Physics The Chinese Academy of Sciences Beijing 100039 China Institute of Photography The Chinese Academy of Sciences Beijing 100101 China

A series of poly(phenylenevinylene) (PPV)/titanium oxide (TiO_2)nanocomposites with different contents of TiO_2 nanoparticles were prepared from mixtures of PPVprecursor and titanium butoxide ethanol solution in a sol- gel process. TEM images showed theformation of the connected network of TiO_2 nanoparticles with a higher content of TiO_2, whichresulted in the titanium butoxide hydrolyzed to form Ti organic compound. Meanwhile, the conjugationof PPV polymer chains can be interrupted by the TiO_2 network structure. The PL spectra revealedthat the emitted light of the PPV/TiO_2 nanocomposites blue shifted without fine structure and thePL intensity enhanced when the TiO_2 network formed. In the lifetime spectroscopy of positronannihilation, the structural properties of the PPV dominated the character of the nanocomposites, inwhich the formation of the omicron -Ps was presented in free volume polymer, when the content ofTiO_2 was below 10 percent. Further increasing the content of TiO_2 nanoparticle introduced muchmore vacancies, vacancy clusters and grain boundaries at their interfaces, which led to thecorresponding lifetime and intensity close to that of the nano- TiO_2 bulk materials. With the TiO_2content of 50 percent of long lifetime. These phenomena suggested that the optical and structuralproperties of the PPV/TiO_2 nanocomposites are dependent on the interfacial structure between PPVand TiO_2 nanoparticles.

关键词： PPV/TiO_2 nanocomposite the doping effect positron annihilation

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泰人起源问题的再思考

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世界民族 1989年第4期 36-44页

作者： b.j.戴维申旭

本文有三重目的。首先,论述各种关于泰人故土的看法和对可以找到的这些看法的证据进行评价;第二,提供一个在该问题上的新发现的详细目录和指明对这些领域的进一步研究是必要的;第三,本人主张就泰人的仪式进行比较是再现原始泰文化的一... 详细信息

本文有三重目的。首先,论述各种关于泰人故土的看法和对可以找到的这些看法的证据进行评价;第二,提供一个在该问题上的新发现的详细目录和指明对这些领域的进一步研究是必要的;第三,本人主张就泰人的仪式进行比较是再现原始泰文化的一种方法,并提出这种再现可以提供历史和考古之间的一种重要的联系。最后,对东山文化和泰文化之间可能存在某种联系提出一些思索。

关键词：泰人东山文化起源问题东南亚相似之处新发现仪式中国南部证据印度尼西亚人

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