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急性心肌梗塞的溶栓治疗

Oncology and Translational medicine 1998年第2期 11-13页

作者： m.p.heintzen,C.J.michel,B.E.Strauer,刘启功 Klinik für Kardiologie pneumologie und Angiologie med.Klinik und poliklinik B Heinrich-Heine-Universitt moorenstr.5 D-40225 Düsseldorf Germany Klinik für Kardiologie pneumologie und Angiologie med.Klinik und poliklinik B Heinrich-Heine-Universitt moorenstr.5 D-40225 Düsseldorf Germany Klinik für Kardiologie pneumologie und Angiologie med.Klinik und poliklinik B Heinrich-Heine-Universitt moorenstr.5 D-40225 Düsseldorf Germany 同济医科大学附属同济医院

本世纪中期以来,心血管疾病已成为西方国家最常见的死亡原因,其中又以急性心肌梗塞(AmI)为首。60年代中期,由于建立了重症监护病房,心律失常得以及时发现和治疗,使AmI的早期死亡率有所下降;70年代,由于药物能降低心肌氧耗,AmI的死亡率... 详细信息

本世纪中期以来,心血管疾病已成为西方国家最常见的死亡原因,其中又以急性心肌梗塞(AmI)为首。60年代中期,由于建立了重症监护病房,心律失常得以及时发现和治疗,使AmI的早期死亡率有所下降;70年代,由于药物能降低心肌氧耗,AmI的死亡率又有所下降;80年代,由于静脉溶栓的广泛应用,AmI的死亡率再次下降;目前,急诊pTCA又使AmI的早期死亡率有所下降,而各种药物的最佳组合又使其进一步下降。 AmI的治疗方法很多,下面着重介绍溶栓治疗。

关键词：溶栓治疗 AmI 死亡率病人再闭塞溶栓剂急性心肌梗塞延迟溶栓再通率

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自发性冠状动脉痉挛引起的急性心肌缺血

德国医学 1996年第4期13卷 206-207页

作者： R.m.Klein R.Niehues m.p.heintzen m.Leschke B.E.Strauer 吕家高 Klinik fr Kardiologie Pneumologie und AngiologieMedizinische Klinik und Poliklinik der UniversittMoorenstr.5D-40225 DsseldorfGermany 同济医科大学附属同济医院

急性冠状动脉缺血综合征大多是发生在冠状动脉有严重粥样硬化病变伴有血栓形成而致冠状动脉高度狭窄基础上的。但有一种少见的情况,以prinzmetal 命名,其急性冠状动脉缺血综合征是由于心外膜下冠状动脉局限性痉挛而致可逆性的狭窄所致,... 详细信息

急性冠状动脉缺血综合征大多是发生在冠状动脉有严重粥样硬化病变伴有血栓形成而致冠状动脉高度狭窄基础上的。但有一种少见的情况,以prinzmetal 命名,其急性冠状动脉缺血综合征是由于心外膜下冠状动脉局限性痉挛而致可逆性的狭窄所致,这类病人中1/3有静息心绞痛伴可逆的单相型 ST 段抬高。

关键词：心肌缺血冠状动脉痉挛

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急性心肌梗塞的介入治疗

Oncology and Translational medicine 1998年第2期 14-16页

作者： m.p.heintzen,C.J.michel,S.Schlter,m.Leschke,B.Schwartzkopff,E.G.Vester,m.Kelm,T.m.Schiele,B.E.Strauer,张金枝 Kardiologie pneumologie Angiologie Heinrich-Heine-Universitt moorenstr.5 D-40225 Düsseldorf Germany medizinische Klinik und poliklinik B Kardiologie pneumologie medizinische Klinik und poliklinik B Angiologie Heinrich-Heine-Universitt moorenstr.5 D-40225 Düsseldorf Germany medizinische Klinik und poliklinik B Kardiologie pneumologie Angiologie Heinrich-Heine-Universitt Kardiologie moorenstr.5 D-40225 Düsseldorf Germany medizinische Klinik und poliklinik B Kardiologie pneumologie Angiologie Heinrich-Heine-Universitt moorenstr.5 D-40225 Düsseldorf pneumologie Germany medizinische Klinik und poliklinik B Kardiologie pneumologie Angiologie Heinrich-Heine-Universitt moorenstr.5 D-40225 Düsseldorf Germany medizinische Klinik und poliklinik B Angiologie Kardiologie pneumologie Angiologie Heinrich-Heine-Universitt moorenstr.5 D-40225 Düsseldorf Germany medizinische Klinik und poliklinik B Kardiologie pneumologie Heinrich-Heine-Universitt Angiologie Heinrich-Heine-Universitt moorenstr.5 D-40225 Düsseldorf Germany medizinische Klinik und poliklinik B Kardiologie pneumologie Angiologie Heinrich-Heine-Universitt moorenstr.5 moorenstr.5 D-40225 Düsseldorf Germany 同济医科大学附属协和医院 D-40225 Düsseldorf Germany medizinische Klinik und poliklinik B

近10年来,急性心肌梗塞(AmI)的治疗发生了显著变化。60年代其死亡率为4O％,监护病房及其网络建立后,其死亡率降至15％～20％,80年代溶栓治疗使其死亡率降至6％～11％。目前认为直接pTCA是AmI病人血管再灌注最有效的治疗方法。

关键词：溶栓治疗病人介入治疗 pTCA 急性心肌梗塞 AmI 血管再闭塞血管再通再灌注

Influence of cerium ions on structure-dependent magnetic properties of Ba-Sr m-type hexaferrite nanocrystals

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Journal of Rare Earths 2024年第2期42卷 364-372,I0005页

作者： Ram A.pawar Sunil m.patange p.m.Dighe Sher Singh meena Abdullah GAl-Sehemi mehboobali pannipara Santosh S.Jadhav Department of physics ArtsCommerce and Science CollegeAhmednagar413711MaharashtraIndia Department of physics Shri Krishna MahavidyalayaGunjotiDistOsmanabad413606MaharashtraIndia padmashri Vikhe patil College of Arts Science and CommercePravaranagarA/P.Loni(Kd)Tal.RahataDistAhmednagar413713MaharashtraIndia Solid State physics Division Bhabha Atomic Research CentreMumbai400085MaharashtraIndia Department of Chemistry King Khalid UniversityAbha61413Saudi Arabia Department of physics D.S.M's ArtsCommerce and Science CollegeJintur431509MaharashtraIndia

The present study is a systematic effort to investigate the structure-sensitive magnetic parameters of Ce^(3+) substituted Ba-Sr hexaferrite nanocrystals chemically formulated as Ba_(0.5)Sr_(0.5)Ce_(x)Fe_(12-x)O_(19) where x=0.0-0.2 with Δx=*** hexaferrite powders were prepared using the sol-gel self-ignition route and structurally characterized by means of powder X-ray diffraction and Fourier transform infrared *** creation of the m-type hexaferrite phase within the synthesized samples was revealed from the Rietveld refinement of the X-ray *** occurrence of a secondary phase of CeO_(2) was revealed within the hexaferrites for the substitution,x> *** refined X-ray diffraction data were utilized to compute the lattice parameters,X-ray density,and lattice parameter *** crystal structure plotted from the refined XRD data reveals the occupancy of the ions at different lattice *** XpS data of the hexaferrite were analyzed to confirm the oxidation states of the constituent *** nanocrystalline nature of the hexaferrites was revealed from the crystallite sizes calculated using Scherer's *** analysis of FTIR spectra confirms that only a fraction of Ce^(3+)accommodated in the lattice and the remaining Ce content reside in the form of the CeO_(2) *** morphology of the hexaferrites was analyzed from the FESEm profiles of the ferrite *** magnetic behavior study was performed by analyzing the Curie temperature,hysteresis loops,and hyperfine interactions by means of susceptibility,V.S.m,and mossbauer spectroscopy,*** hexaferrites with increasing coercivity,decreasing saturation magnetization,and decreasing Curie temperature are reported in the *** substituted Ce^(3+)ions inhibit the grain growth and create lattice imperfections giving rise to hexaferrites with tuned magnetic parameters suitable for different applications.

关键词： Ba-Sr hexaferrite Ce^(3+)substitution XpS Saturation magnetization Coercivity m?ssbauer spectroscopy

Selection of digital fabrication technique in the construction industry--A multi-criteria decision-making approach

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Frontiers of Structural and Civil Engineering 2024年第7期18卷 977-997页

作者： m.p.SALAImANImAGUDAm J.JAYApRAKASH Department of Structural and Geotechnical Engineering School of Civil EngineeringVellore Institute of TechnologyVellore 632014India

Digital fabrication techniques,in recent decades,have provided the basis of a sustainable revolution in the construction ***,selecting the digital fabrication method in terms of manufacturability and functionality requirements is a complex *** paper presents alternatives and criteria for selection of digital fabrication techniques by adopting the multi-criteria decision-making *** alternatives considered in the study are concrete three-dimensional(3D)printing,shotcrete,smart dynamic casting,material intrusion,mesh molding,injection concrete 3D printing,and thin forming *** criteria include formwork utilization,reinforcement incorporation,geometrical complexity,material enhancement,assembly complexity,surface finish,and build *** demonstrates different multi-criteria decision-making techniques,with both subjective and objective weighting *** given ranking is based on the current condition of digital fabrication in the construction *** study reveals that in the selection of digital fabrication techniques,the criteria including reinforcement incorporation,build area,and geometrical complexity play a pivotal role,collectively accounting for nearly 70% of the overall *** the evaluated techniques,concrete 3D printing emerged as the best performer,however the shotcrete and mesh molding techniques in the second and third positions.

关键词： digital fabrication multicriteria decision-making concrete 3D printing

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经皮腔内血管成形术后室壁瘤消退一例

Oncology and Translational medicine 1995年第2期12卷 26-26页

作者： m.p.heintzen,T.Neubaur,W.motz,B.E.Strauer,方红,马业新 medizinische Klinik und poliklinik B der Universitat Düsseldorf Germany medizinische Klinik und poliklinik B der Universitat Düsseldorf Germany medizinische Klinik und poliklinik B der Universitat Düsseldorf Germany medizinische Klinik und poliklinik B der Universitat Düsseldorf Germany 同济医院大学附属同济医院同济医院大学附属同济医院

患者男性,76岁,1986年以来出现典型的心绞痛症状并进行性加重。1989年9月发生非透壁性前壁心肌梗塞,4周后入院。心电图示:V2-V4导联呈QS型,S-T段抬高,提示透壁性的壁心梗伴室壁瘤形成。经消心痛(120mg)和心痛定(10mg,每日3次)等抗心绞... 详细信息

患者男性,76岁,1986年以来出现典型的心绞痛症状并进行性加重。1989年9月发生非透壁性前壁心肌梗塞,4周后入院。心电图示:V2-V4导联呈QS型,S-T段抬高,提示透壁性的壁心梗伴室壁瘤形成。经消心痛(120mg)和心痛定(10mg,每日3次)等抗心绞痛治疗,心绞痛仍长时间持续发作,后施行了冠脉造影和左室造影术。冠脉造影示左前降支冠状动脉几乎完全性闭塞,左回旋支亦有病变但较轻,极少侧支循环,左室造影示前壁收缩功能明显障碍(室壁瘤形成)。因左前降支高度狭窄引起的胸痛症状不能缓解,梗塞后8周对左前降支(RIVA)施行了球囊扩张术。扩张后狭窄部明显增宽,残余狭

关键词：室壁瘤冠脉造影收缩功能心电图膨胀瘤冠状动脉造影电诊断图透壁性心肌梗塞贯穿性心肌梗塞顿抑心肌胸前导联左室造影

Intertype superconductivity evoked by the interplay of disorder and multiple bands

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Frontiers of physics 2024年第4期19卷 81-89页

作者： p.m.marychev A.A.Shanenko A.V.Vagov HSE University 101000 MoscowRussia Center for Advanced mesoscience and Nanotechnology MIPTDolgoprudny141700Russia

Nonmagnetic impurity scattering is known to shift up the Ginzburg-Landau parameter k of a *** this case,when the system is initially in type I,it can change its magnetic response,crossing the intertype domain with k~1 between the two standard superconductivity types and arriving at type *** the present work we demonstrate that the impact of disorder can be much more profound in the presence of the multiband structure of the charge carrier *** particular,when the band diffusivities differ from each other,the intertype domain tends to expand significantly,including points with k>>1 that belong to deep type-Ⅱ in conventional single-band *** finding sheds light on the nontrivial disorder effect and significantly complements earlier results on the enlargement of the intertype domain in clean multiband superconductors.

关键词： superconductivity disorder intertype superconductivity twoband model

mechanisms behind the environmental sensitivity of carbon fiber reinforced polytetrafluoroethylene(pTFE)

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Friction 2024年第5期12卷 997-1015页

作者： pontus JOHANSSON p.mARKLUND m.BJORLING Y.SHI Division of machine Element LuleåUniversity of TechnologyLuleåSE-97187Sweden

Carbon fiber reinforced polytetrafluoroethylene (CF/pTFE) composites are known for their exceptional tribological performance when sliding against steel or cast iron in inert gas environments. Compared to experiments in humid air, about an order of magnitude lower wear rate and several times lower coefficient of friction have been reported for tests conducted in dry nitrogen and hydrogen. moreover, trace moisture has been shown to affect the friction and wear significantly of this tribosystem, although a possible effect of oxygen cannot be ruled out due to uncertainties regarding the oxygen concentrations. While several studies have pointed out the environmental sensitivity of CF/pTFE, the understanding of the underlying mechanisms are very limited. The objective of this research is to investigate the individual and combined effect of oxygen and moisture on the tribological behavior of CF/pTFE sliding against steel. Additionally, this study aims to elucidate the underlying mechanisms that govern the environmental sensitivity of the system. Climate-controlled three-pin-on-disc experiments were conducted in nitrogen atmospheres at various concentrations of oxygen and moisture. The tribological results clearly demonstrate that both moisture and oxygen contribute to increased friction and wear. However, the adverse effect was much more pronounced for oxygen than moisture. A qualitative method was developed to estimate the tribofilm coverage on the CF/pTFE surface. Results showed strong correlation between high coverage of strongly adhered tribofilm and low wear rate. moreover, a loosely adhered tribofilm was observed on top of the CF/pTFE surface in presence of moisture. FTIR analysis indicated that the loosely adhered tribofilm found in the moisture-enriched environment contained a significant amount of adsorbed water, which may explain the lower coefficient of friction in presence of moisture compared to oxygen. The adsorbed water in the loosely adhered tribofilm coul

关键词： polymer composite tribofilm tribochemistry atmosphere

Drought events influence nutrient canopy exchanges and green leaf partitioning during senescence in a deciduous forest

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Forest Ecosystems 2024年第1期11卷 110-119页

作者： J.Touche C.Calvaruso p.De Donato m.-p.Turpault INRAE BEFF-54000NancyFrance UmR 7359 GeoRessourcesFaculte des Sciences-Campus des Aiguillettes54506Vandoeuvre Les NancyFrance EcoSustain Environmental Engineering OfficeResearch and DevelopmentKanfen57330France

The increase in the frequency and intensity of drought events expected in the coming decades in Western Europe may disturb forest biogeochemical cycles and create nutrient deficiencies in *** possible origin of nutrient deficiency is the disturbance of the partitioning of the green leaf pool during the leaf senescence period between resorption,foliar leaching and senesced ***,the effects of drought events on this partitioning and the consequences for the maintenance of tree nutrition are poorly *** experiment in a beech forest in meuse(France)was conducted to assess the effect of drought events on nutrient canopy exchanges and on the partitioning of the green leaf pool during the leaf senescence *** aim was to identify potential nutritional consequences of droughts for *** nutrient dynamics,including resorption,chemistry of green and senesced leaves,foliar absorption and leaching in mature beech stands from 2012 to 2019 allowed us to compare the nutrient exchanges for three nondry and three dry years(i.e.,with an intense drought event during the growing season).During dry years,we observed a decrease by almost a third of the potassium(K)partitioning to resorption(*** efficiency),thus reducing the K reserve in trees for the next growing *** result suggests that with the increased drought frequency and intensity expected for the coming decades,there will be a risk of potassium deficiency in trees,as already observed in a rainfall exclusion experiment on the same study *** foliar leaching and higher parititioning to the senesced leaves for K and phosphorus(p)were also *** addition,a slight increase in nitrogen(N)resorption efficiency occurred during dry years which is more likely to improve tree *** calcium(Ca)negative resorption decreased,with no apparent consequence in our study *** results show that nutrient exchanges in the canopy and the partitioning of the green leaf

关键词： Natural drought Beech forest Canopy Resorption Foliar leaching Senesced leaves Nutrition