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Communications in Theoretical Physics 2024年第6期76卷 142-147页

作者： Yuan-Cheng Wang Jia Ma Li-Guang Jiao stephan Fritzsche College of Physical Science and Technology Shenyang Normal UniversityShenyang 110034China Helmholtz-Institut Jena D-07743 JenaGermany GSI Helmholtzzentrum für Schwerionenforschung GmbH D-64291 DarmstadtGermany College of Science Shenyang Aerospace UniversityShenyang 110136China College of Physics Jilin UniversityChangchun 130012China Theoretisch-Physikalisches Institut Friedrich-Schiller-Universität Jena07743 JenaGermany

The relativistic binary-encounter-Bethe model with Wannier-type threshold law is employed to obtain the inner-shell ionization cross sections of multi-electron atoms(Ni,Cu,Y,Ag,Au,Yb,Ta,and Pb)for positron impact energies from the thresholds up to 105ke *** is good agreement between the present calculations and the experimental *** constant in the acceleration term derived from the Wannier law is determined to be 0.2 and 0.5 for the K-and L-shells,respectively.

关键词： positron scattering ionization cross section binary-encounter-Bethe model

建筑物和构筑物中的远景尺度:纳米颗粒、纳米结构及界面现象(续完)

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商品混凝土 2008年第4期 62-66页

作者： M.Schmidt d.stephan R.Krelaus 于淼祝瑜 dipl.-Ing.C.Geisenhanslüke UniversittKasselKasselGermany.Prof.Dr dipl.-Ing.C.Geisenhanslüke UniversittKasselKasselGermany.Dr

纳米技术在矿物胶结料、建筑材料等方面的应用,对进一步搞清体现在纳米、微观层次上发生的复杂的物理、化学变化提供了可能。同时也有了新的技术干预、控制这些反应过程的手段。建筑材料除了必须具备承重能力、保护能力之外,纳米技术的... 详细信息

纳米技术在矿物胶结料、建筑材料等方面的应用,对进一步搞清体现在纳米、微观层次上发生的复杂的物理、化学变化提供了可能。同时也有了新的技术干预、控制这些反应过程的手段。建筑材料除了必须具备承重能力、保护能力之外,纳米技术的采用又使其向"智能材料"的方向转化。要想实现这一转化,最基本的要求便是深入理解"纳米世界"所特有的物理、化学特征。高性能混凝土(例如超高强混凝土)便是采用微量级的硅灰和其他超细材料配制而成的;超细料的掺入使其内部固相颗粒的堆积更为紧密。若严格控制掺入纳米硅灰的粒径分布,能够进一步提高混凝土的性能。毫无疑问,上述方法也适用于陶瓷材料。采用复杂生产技术在冷态下矿物胶结料制备高性能陶瓷;纳米二氧化钛在建筑材料中的应用,可使其由"传统材料"向"智能材料"转化。采用纳米技术生产的薄透明层不仅使表面具有自洁性,而且还可以作为降解污染物的催化剂。纳米技术在建材和建筑方面的研究和应用仍然具有广阔的空间;纳米技术的推广,使得矿物掺合料以及其它材料更为广泛的应用到建筑施工中去,从而发挥纳米材料的实际应用价值。另外,为深入认识建筑材料中的"纳米世界",纳米技术还为其提供切实必要的技术支撑。

关键词：界面现象高性能混凝土矿物掺合料超高强混凝土水泥浆体智能材料建筑材料硅灰高性能陶瓷材

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减少经皮腔血管成形术后再狭窄的预防措施

德国医学 1997年第2期14卷 73-76页

作者： R.Gtz T.Gunnar H.Sonja R.Josef d.stephan 梁惠民 Abteilung fur Radiologische diagnostik Eberhard-Karls-Universitt TbingenHoppe-Seyler-Str.3D-72076 TbingenGermany 同济医科大学附属协和医院

经皮腔气囊成形术后的再狭窄是这种方法出现20年以来(1971年Gruentzig)一直未解决的问题。对其基本的病理机制的研究证明,平滑肌内膜细胞的增生在狭窄的过程中起决定性的作用,另外内皮细胞和血小板也是重要因素。目前的理论认为,血管成... 详细信息

经皮腔气囊成形术后的再狭窄是这种方法出现20年以来(1971年Gruentzig)一直未解决的问题。对其基本的病理机制的研究证明,平滑肌内膜细胞的增生在狭窄的过程中起决定性的作用,另外内皮细胞和血小板也是重要因素。目前的理论认为,血管成形术后,从损伤的内皮细胞和聚集的血小板释放的生长因子刺激平滑肌细胞的迁移和聚集。并临床研究中,希望通过影响其作用机制以降低再狭窄的发生率,但至今收效甚微,所以目前尚无能有效减少再狭窄的药物治疗。以后的研究,必须一方面继续寻找再狭窄的病理生理联系,另外则是研究影响其过程的辅助药物治疗。

关键词：血管成形术经皮腔手术后再狭窄预防

掺具有光催化效果添加剂的混凝土可提高空气污染物降解效率

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建筑砌块与砌块建筑 2015年第3期 12-12,14-18页

作者： K.Amrhein A.Helmig W.Krohm C.Scheidt d.stephan 崔玉忠德国Steag Power Minerls有限责任公司德国丁斯拉肯46535 德国Kronos公司

为降低空气污染物的浓度,德国Steag Power Minerls有限责任公司和Kronos公司合作,开发出一种具有光催化功能的混凝土添加剂,并成功应用于混凝土路面砖上。本文简要介绍其试验测试的结果数据。

关键词：混凝土光催化添加剂

Pre-operative visceral adipose tissue radiodensity is a potentially novel prognostic biomarker for early endoscopic post-operative recurrence in Crohn’s disease

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World Journal of Gastrointestinal Surgery 2024年第3期16卷 740-750页

作者： Phillip Gu Shishir dube Norman Gellada So Yung Choi Susan Win Yoo Jin Lee Shaohong Yang Talin Haritunians Gil Y Melmed Eric A Vasiliauskas Niru Bonthala Gaurav Syal Andres J Yarur david Ziring Shervin Rabizadeh Phillip Fleshner Cindy Kallman Suzanne devkota stephan R Targan dalin Li dermot PB McGovern department of Medicine Cedars-Sinai Medical CenterLos AngelesCA 90048United States department of Imaging Cedars-Sinai Medical CenterLos AngelesCA 90048United States department of Biostatistics Shared Resource Cedars-Sinai Medical CenterLos AngelesCA 90048United States department of Internal Medicine Keimyung University School of MedicineDaegu 42601South Korea department of Medicine University of California at Los AngelesLos AngelesCA 90095United States department of Medicine University of California at San DiegoSan DiegoCA 92093United States department of Pediatrics Cedars-Sinai Medical CenterLos AngelesCA 90048United States department of Surgery Cedars-Sinai Medical CenterLos AngelesCA 90048United States

BACKGROUNd Evidence suggests inflammatory mesenteric fat is involved in post-operative recurrence(POR)of Crohn’s disease(Cd).However,its prognostic value is INTROdUCTION Crohn’s disease(Cd)is a debilitating chronic immune-mediated inflammatory disease(IMId)of the gastrointestinal tract that is increasing in incidence and prevalence globally[1].Cd patients often undergo surgery for disease-related complic-ations and/or medically refractory ***,surgery is not curative,and many patients develop post-operative recurrence(POR)of Cd with a significant proportion eventually requiring additional *** advances in early detection and therapeutics,the contemporary 10-year risk of surgery has improved from 50%to 26%,but the risk of recurrent surgery has remained unchanged at 30%,suggesting a need to improve post-operative management strategies[2].Presently,there are two accepted strategies to mitigate POR,but each have potential ***,patients start early post-operative pharmacologic prophylaxis within 4-6 wk after *** strategy can potentially overtreat a subset of patient who may not develop long-term disease recurrence off ***,these patients are at risk of medication-related adverse events and the direct and indirect costs associated with therapy with little or no benefit[3].The second strategy is performing early colonoscopy within 6-12 months after surgery and escalating therapy based on FOOTNOTES Author contributions:Gu P is the guarantor of the article and was involved in concept and design,data collection,statistical analysis,drafting of manuscript,and final approval of manuscript;dube S and Choi SY were involved in statistical analysis,drafting of the manuscript,and final approval of manuscript;Gellada N,Win S,Lee YJ and Yang S were involved in the data collection,drafting of the manuscript,and final approval of manuscript;Haritunians T and Li d were involved in data analysis and interpretation,drafting

关键词： Crohn’s disease Surgery Visceral adipose tissue Mesenteric adipose tissue Creeping fat Computed tomography

2023年美国麻醉医师学会神经肌肉阻滞监测与拮抗实践指南:美国麻醉医师学会工作组关于神经肌肉阻滞的报告

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中华麻醉学杂志 2024年第5期44卷 518-542页

作者： stephan R.Thilen Wade A.Weigel Michael M.Todd Richard P.dutton Cynthia A.Lien Stuart A.Grant Joseph W.Szokol Lars I.Eriksson Myron Yaster Mark d.Grant Madhulika Agarkar Anne M.Marbella Jaime F.Blanck Karen B.domino 西雅图华盛顿州明尼阿波里斯明尼苏达州达拉斯得克萨斯州密尔沃基威斯康星州教堂山北卡罗来纳州洛杉矶加利福尼亚州斯德哥尔摩瑞典丹佛科罗拉多州绍姆堡伊利诺斯州巴尔的摩马里兰州

本实践指南基于证据提供了全身麻醉期间及术后神经肌肉功能监测与阻滞拮抗的管理推荐。主要关注神经肌肉功能监测的类型与部位及阻滞拮抗的过程,以减少肌肉松弛药残留阻滞。

关键词：神经肌肉阻滞肌肉松弛药神经肌肉功能监测舒更葡糖钠新斯的明

From foredeep to orogenic wedge-top: The Cretaceous Songliao retroforeland basin, China

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Geoscience Frontiers 2023年第3期14卷 65-73页

作者： Zhiqiang Feng stephan A.Graham Petroleum Exploration and Production Research Institute SINOPECNo.197 Baisha Rd.Beijing 112206China department of Geological Sciences Stanford UniversityStanfordCA 94305USA

Songliao Basin,the largest Mesozoic intracontinental nonmarine basin in eastern China,initiated during the latest Jurassic as a backarc extensional basin;rifting failed and thermal cooling controlled subsidence through the early Late *** 2-d and 3d reflection seismic and borehole data with regional geological studies,we interpret sedimentary sequence and structural patterns of the Coniacian-Maastrichtian fill of Songliao Basin as defining a retroforeland basin system developed after 88 Ma(marked by the T11 unconformity in the basin),including(1)significant increase in the thickness of the Nenjiang Formation eastward towards orogenic highlands of the Zhangguangcai Range and the convergent continental margin;(2)a shift of detrital provenance in the basin from north to southeast;and(3)propagation of E-W shortened structures,increasing eastward in amplitude,frequency,and degree of inversion toward the *** latest Cretaceous,foreland basin fill progressively deformed,as the foredeep evolved to a wedge-top tectonic setting,marked by the basin-wide T04 unconformity within the upper Nenjiang Formation at 81.6 *** of the basin was brought into the orogenic wedge and eroded by the end of the *** Jurassic/Early Cretaceous backarc rifting of uncratonized basement comprised of accreted terranes likely facilitated and localized the *** normal faults reactivated and extensively inverted as thrust faults are prominent in the eastern 1/3 of the basin,whereas folds developed above detachments in shaley early post-rift strata dominate the western 2/3 of the *** foreland development likely was driven by changing plate dynamics and collision along the Pacific margin after 88 Ma.

关键词： Retroforeland basin Intracontinental basin Seismic reflection and borehole data Lithospheric plate dynamics Songliao basin

Emerging properties of non-crystalline phases of graphene and boron nitride based materials

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Nano Materials Science 2022年第1期4卷 10-17页

作者： Aleandro Antidormi Luigi Colombo stephan Roche Catalan Institute of Nanoscience and Nanotechnology(ICN2) CSIC and BISTCampus UABBellaterra08193BarcelonaSpain department of Materials Science and Engineering The University of Texas at DallasRichardsonTX75080United States ICREA-InstitucióCatalana de Recerca i Estudis Avancats 08010BarcelonaSpain

We review recent developments on the synthesis and properties of two-dimensional materials which, although being mainly of an sp^(2) bonding character, exhibit highly disordered, non-uniform and structurally random morphologies. The emergence of such class of amorphous materials, including amorphous graphene and boron nitride, have shown superior properties compared to their crystalline counterparts when used as interfacial films. In this paper we discuss their structural,vibrational and electronic properties and present a perspective of their use for electronic applications.

关键词： boron amorphous properties

Controlling flowering of Medicago sativa(alfalfa)by inducing dominant mutations

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Journal of Integrative Plant Biology 2022年第2期64卷 205-214页

作者： Maurizio Junior Chiurazzi Anton Frisgaard Nørrevang Pedro García Pablo d.Cerdán Michael Palmgren stephan Wenkel NovoCrops Center University of CopenhagenThorvaldsensvej 40Frederiksberg C1871 Denmark Copenhagen Plant Science Centre University of CopenhagenThorvaldsensvej 40Frederiksberg C1871 Denmark department of Plant and Environmental Sciences University of CopenhagenThorvaldsensvej 40Frederiksberg C1871 Denmark Fundación Instituto Leloir IIBBA-CONICETAvenida Patricias Argentinas 435Buenos Aires1405 Argentina

Breeding plants with polyploid genomes is challenging because functional redundancy hampers the identification of loss-of-function *** sativa is tetraploid and obligate outcrossing,which together with inbreeding depression complicates traditional breeding approaches in obtaining plants with a stable growth *** dominant mutations would provide an alternative strategy to introduce domestication traits in plants with high gene *** we describe two complementary strategies to induce dominant mutations in the *** genome and how they can be relevant in the control of flowering ***,we outline a genome-engineering strategy that harnesses the use of microProteins as developmental *** are small proteins that appeared during genome evolution from genes encoding larger *** allows us to retrace evolution and create microProtein-coding genes de ***,we provide an inventory of genes regulated by microRNAs that control plant *** respective gene transcripts microRNA-resistant by inducing point mutations can uncouple microRNA ***,we investigated the recently published genomes of *** and provide an inventory of breeding targets,some of which,when mutated,are likely to result in dominant traits.

关键词： flowering time genome-engineering Medicago sativa microProtein microRNA