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Hallux rigidus: Joint preserving alternatives to arthrodesis- a review of the literature

World Journal of Orthopedics 2014年第1期5卷 6-13页

作者： Hans Polzer Sigmund Polzer mareen brumann Wolf Mutschler Markus Regauer Munich University Hospital Foot and Ankle Surgery Department of Trauma Surgery-Campus Innenstadt Department of Hand Ellbow and Footsurgery ATOS Clinic Heidelberg

Hallux rigidus describes the osteoarthritis of the firstmetatarsophalangeal joint. It was first mentioned in 1887. Since then a multitude of terms have been introduced referring to the same disease. The main complaints are pain especially during movement and a limited range of motion. Radiographically the typical signs of osteoarthritis can be observed starting at the dorsal portion of the joint. Numerous classifications make the comparison of the different studies difficult. If non-operative treatment fails to resolve the symptoms operative treatment is indicated. The most studied procedure with reproducible results is the arthrodesis. Nevertheless, many patients refuse this treatment option, favouring a procedure preserving motion. Different motion preserving and joint sacrificing operations such as arthroplasty are available. In this review we focus on motion and joint preserving procedures. Numer-ous joint preserving osteotomies have been described. Most of them try to relocate the viable plantar cartilage more dorsally, to decompress the joint and to increase dorsiflexion of the first metatarsal bone. Multiple studies are available investigating these procedures. Most of them suffer from low quality, short follow up and small patient numbers. Consequently the grade of recommendation is low. Nonetheless, joint preserving procedures are appealing because if they fail to relief the symptoms an arthrodesis or arthroplasty can still be performed thereafter.

关键词： Hallux rigidus Osteoarthritis First metatarsophalangeal joint Joint preserving Operative treatment Osteotomy

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Nanoplasmonic colloidal suspensions for the enhance-ment of the luminescent emission from single-walled carbon nanotubes

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Nano Research 2013年第8期6卷 593-601页

作者： mareen Glaeske Antonio Setaro Department of Physics Freie Universit~t Berlin Amimallee 14 1419S Berlin Germany

Aiming to enhance the luminescence yield of carbon nanotubes, we introduce a new class of hybrid nanoplasmonic colloidal systems （π-hybrids）. Nanotubes dispersed in gold nanorod colloidal suspensions yield hybrid structures exhibiting enhanced luminescence up to a factor of 20. The novelty of the proposed enhancement mechanism relies on including metal proximity effects in addition to its localized surface plasmons. This simple, robust and flexible technique enhances the luminescence of nanotubes with chiralities whose enhancement has never reported before, for example the （8,4） tube.

关键词： carbon nanotubes luminescence enhancement gold nanorods nanoplasmonic colloids hybrid structures

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Enhanced room-temperature Na^(+) ionic conductivity in Na_(4.92)Y_(0.92)Zr_(0.08)Si_(4)O_(12)

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eScience 2023年第6期3卷 935-945页

作者： Aikai Yang Kai Yao mareen Schaller Enkhtsetseg Dashjav Hang Li Shuo Zhao Qiu Zhang Martin Etter Xingchen Shen Huimin Song Qiongqiong Lu Ruijie Ye Igor Moudrakovski Quanquan Pang Sylvio Indris Xingchao Wang Qianli Ma Frank Tietz Jun Chen Olivier Guillon Forschungszentrum Jülich GmbH Institute of Energy and Climate ResearchMaterials Synthesis and Processing(IEK-1)52425 JülichGermany Institute of Mineral Engineering(GHI) RWTH Aachen UniversityForckenbeckstraße 3352074 AachenGermany Institute for Applied Materials-Energy Storage Systems(IAM-ESS) Karlsruhe Institute of Technology(KIT)76344 Eggenstein-LeopoldshafenGermany Renewable Energy Conversion and Storage Center(RECAST) Haihe Laboratory of Sustainable Chemical TransformationsKey Laboratory of Advanced Energy Materials Chemistry(Ministry of Education)College of ChemistryNankai UniversityTianjin 300071China Deutsches Elektronen-Synchrotron(DESY) Notkestrasse 8522607 HamburgGermany Laboratoire de Cristallographie et Sciences des Materiaux(CRISMAT) CNRSENSICAEN14000 CaenFrance Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials School of Materials Science and EngineeringPeking UniversityBeijing 100871China Institute of Materials Henan Academy of SciencesHenan Key Laboratory of Advanced Conductor MaterialsZhengzhou 450046China Max Planck Institute for Solid State Research Heisenbergstraße 170569 StuttgartGermany State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources Key Laboratory of Advanced Functional MaterialsAutonomous RegionInstitute of Applied ChemistryCollege of ChemistryXinjiang UniversityUrumqiXinjiang 830046China Forschungszentrum Jülich GmbH Helmholtz Institute Münster(IEK-12)52425 JülichGermany Jülich Aachen Research Alliance JARA-Energy52425 JülichGermany

Developing cost-effective and reliable solid-state sodium batteries with superior performance is crucial for stationary energy storage.A key component in facilitating their application is a solid-state electrolyte with high conductivity and ***,we employed aliovalent cation substitution to enhance ionic conductivity while preserving the crystal *** substitution of Y^(3+)with Zr^(4+)in Na_(5)YSi_(4)O_(12) introduced Naþion vacancies,resulting in high bulk and total conductivities of up to 6.5 and 3.3 mS cm^(-1),respectively,at room temperature with the composition Na_(4.92)Y_(0.92)Zr_(0.08)Si_(4)O_(12)(NYZS).NYZS shows exceptional electrochemical stability(up to 10 V ***þ/Na),favorable interfacial compatibility with Na,and an excellent critical current density of 2.4 mA cm^(-2).The enhanced conductivity of Naþions in NYZS was elucidated using solid-state nuclear magnetic resonance techniques and theoretical simulations,revealing two migration routes facilitated by the synergistic effect of increased Naþion vacancies and improved chemical environment due to Zr^(4+)*** extends the list of suitable solid-state electrolytes and enables the facile synthesis of stable,low-cost Naþion silicate electrolytes.

关键词： Solid-state electrolytes Sodium superionic conductors Na_(4.92)Y_(0.92)Zr_(0.08)Si_(4)O_(12) High conductivity Ultra-wide electrochemical window

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寻求共识国家的学术性政策建议——以比利时和德国为例

国际行政科学评论（中文版）

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国际行政科学评论（中文版） 2022年第1期 27-46页

作者：瓦勒瑞·帕坦索尼娅·布鲁姆艾伦·弗贝米贾姆·佩卡尔—米利塞维奇玛莲·布兰斯邵彤(译) 熊缨(审校) 荷兰莱顿大学公共管理学院德国哈根(哈根大学)政治科学研究所库鲁汶公共治理研究所比利时库鲁汶公共治理研究所德国纽伦堡合作教育大学中国人事科学研究院不详

对世界各地政策咨询系统的研究表明,传统上由政府内部提供的、在历史上占主导地位的咨询来源,越来越多地得到其他行为者和外部知识的补充。然而,绝大多数研究都集中在英语国家下。但是,具有寻求共识的新社团主义传统的国家在政策建议方... 详细信息

对世界各地政策咨询系统的研究表明,传统上由政府内部提供的、在历史上占主导地位的咨询来源,越来越多地得到其他行为者和外部知识的补充。然而,绝大多数研究都集中在英语国家下。但是,具有寻求共识的新社团主义传统的国家在政策建议方面提供了一个特例,值得更多的学术关注。在这些国家,重要的证据是机构代表的专家理性。学术研究在基于共识的系统中的地位和作用尚不清楚,这是本文的重点。我们是否能观察到共识型国家之间的共同点还是差异性?我们调查了两个典型的寻求共识的国家:比利时和德国。为了调查政策建议的供给方面,本文回顾了有关其政策建议系统的现有证据。在需求方面,我们深入介绍了联邦部长级官员的调查结果。我们发现这两个案例有共同的趋势,但它们的性质和程度是不同的。在比利时,学术性政策建议的供给和需求相对较低,而德国的案例表明,学术研究的供给和需求在咨询领域和制度化方面发生了更多变化。

关键词：学术研究建议比利时德国知识运用政策咨询体系

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