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双套冠固位可摘局部义齿的临床长期成功率研究间隙配合型双套冠的重要性

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中国口腔医学继续教育杂志 2006年第3期9卷 25-31页

作者： Hans-Jurgen Wenz Katrin Hertrampf axel sonnenschein Klaus M. Lehmann 陈俊（译）冯海兰（校）不详北京大学口腔医学院北京海淀区中关村南大街22号100081

双套冠作为可摘义齿的固位装置已有十余年的历史。根据固位方式的不同可将双套冠分为以下3种：套筒冠（摩擦固位）、锥形双套冠（楔力固位）及间隙配合型双套冠（附加的固位装置）。尽管双套冠在临床上已得到广泛深入的应用．但迄今为... 详细信息

双套冠作为可摘义齿的固位装置已有十余年的历史。根据固位方式的不同可将双套冠分为以下3种：套筒冠（摩擦固位）、锥形双套冠（楔力固位）及间隙配合型双套冠（附加的固位装置）。尽管双套冠在临床上已得到广泛深入的应用．但迄今为止仅有少量的文献报道了双套冠修复体的长期成功率。本文对间隙配合型的Marburg双套冠原理进行了研究。相对于其它类型的双套冠．Marburg双套冠义齿是一种弹性支持型修复体。长期成功率研究表明．Marburg双套冠系统的基牙脱落率5年为6％．10年为18％。如果基牙数量足够，所有不同类型的双套冠系统都可以达到这样好的预后效果。然而．刚性就位双套冠系统会增高基牙脱落率。研究表明．按照牙周病修复治疗理论设计的弹性支持型可摘义齿没有显著增高基牙脱落率．因此该设计可能有利于口内余留牙数量较少的情况。

关键词：双套冠修复体可摘局部义齿固位装置配合型 Marburg双套冠系统间隙功率临床可摘义齿理论设计

NECAB family of neuronal calcium-binding proteins in health and disease

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Neural Regeneration Research 2025年第5期20卷 1236-1243页

作者： Diones Bueno Michael K.E.Schafer Sudena Wang Michael J.Schmeisser axel Methner Institute for Molecular Medicine University Medical Center of the Johannes Gutenberg-UniversityMainzGermany Department of Anesthesiology University Medical Center of the Johannes Gutenberg-UniversityMainzGermany Institute of Anatomy University Medical Center of the Johannes Gutenberg-UniversityMainzGermany

The N-terminal EF-hand calcium-binding proteins 1–3(NECAB1–3) constitute a family of predominantly neuronal proteins characterized by the presence of at least one EF-hand calcium-binding domain and a functionally less well characterized C-terminal antibiotic biosynthesis monooxygenase domain. All three family members were initially discovered due to their interactions with other proteins. NECAB1 associates with synaptotagmin-1, a critical neuronal protein involved in membrane trafficking and synaptic vesicle exocytosis. NECAB2 interacts with predominantly striatal G-protein-coupled receptors, while NECAB3 partners with amyloid-β A4 precursor protein-binding family A members 2 and 3, key regulators of amyloid-β production. This demonstrates the capacity of the family for interactions with various classes of proteins. NECAB proteins exhibit distinct subcellular localizations: NECAB1 is found in the nucleus and cytosol, NECAB2 resides in endosomes and the plasma membrane, and NECAB3 is present in the endoplasmic reticulum and Golgi apparatus. The antibiotic biosynthesis monooxygenase domain, an evolutionarily ancient component, is akin to atypical heme oxygenases in prokaryotes but is not wellcharacterized in vertebrates. Prokaryotic antibiotic biosynthesis monooxygenase domains typically form dimers, suggesting that calcium-mediated conformational changes in NECAB proteins may induce antibiotic biosynthesis monooxygenase domain dimerization, potentially activating some enzymatic properties. However, the substrate for this enzymatic activity remains uncertain. Alternatively, calcium-mediated conformational changes might influence protein interactions or the subcellular localization of NECAB proteins by controlling the availability of protein–protein interaction domains situated between the EF hands and the antibiotic biosynthesis monooxygenase domain. This review summarizes what is known about genomic organization, tissue expression, intracellular localization, interac

关键词： calcium EF hand mitochondria nervous system signal transduction

Exactly Solvable Combinations of Scalar and Vector Potentials for the Dirac Equation Interrelated by Riccati Equations

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Chinese Physics Letters 2006年第6期23卷 1365-1368页

作者： axel Schulze-Halberg Department of Science University of Colima Bernal Diaz del Castillo 340 Col. Villas San Sebastian C.P. 28045 Colima Col. Mexico

New classes of solvable scalar and vector potentials for the Dirac equation are obtained, together with the associated exact Dirac spinors. The method of derivation is based on an a priori constraint between the solutions, leading to an interrelation between the scalar and vector potential in the form ofa Riccati equation. The present note generalizes a series of former articles.

关键词： Exactly Solvable Combinations Riccati Equations

The future of underground spatial planning and the resulting potential risks from the point of view of mining subsidence engineering

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International Journal of Mining Science and Technology 2020年第1期30卷 93-98页

作者： Carolina Brücker axel Preuβe Institute for Mine Surveying Mining Subsidence Engineering and Geophysics in MiningRWTH Aachen UniversityWüllnerstr.2Aachen 52062Germany

The topic of ground movements in Germany has been studied extensively in the past,especially in the field of active *** active hard coal mines in Germany were finally shut down in 2018 and lignite mining is expected to take place only until *** so-called long-term liabilities of the mine operators in Germany include,among other things,the long-term guarantee of stability and thus the monitoring of ground *** far,the economic use of underground mining in Germany was mainly the supply of raw *** the future,the underground storage of compressed air,methane or hydrogen will play an important role in renewable energy supply and climate ***,the underground storage space will become more important and the spatial planning is essential to ensure availability of safe underground openings for the various options of environmentally friendly energy ***,this renewed usage of underground openings may also bring new and sometimes unknown challenges of geomechanical *** aftermath of hard coal and lignite mining will be an increasing challenge in mining subsidence *** the other hand,new possibilities due to underground spatial planning may lead to subsidence and/or heaving of the upper surface.

关键词： Mining Surveying Underground spatial planning Mining engineering Renewable energies

Buffered microclimate determines the presence of Salamandra corsica

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Journal of Forestry Research 2021年第3期32卷 1089-1093页

作者： Daniel Escoriza axel Hernandez GRECO Institute of Aquatic EcologyUniversity of Girona17071 GironaSpain Department of Environmental Sciences University Pasquale Paoli20250 CorteFrance

Numerous amphibian species occupy microhabitats with buffered thermal and moisture conditions,typically under forest ***,we assessed whether the insular endemic Salamandra corsica also uses this type of habitat,which could have important implications for its *** used data loggers to record the air temperature and air humidity at 4 h intervals over a period of 2 years,at 13 stations with a confirmed presence of *** data were compared with those recorded at Corsican weather stations and those generated by a climate model(WorldClim 2).The weather station data showed significant deviations from the probe data,by an average of-1.26℃(minimum temperature),+2.61℃(maximum temperature),and-0.04%(relative humidity).Similarly,the WorldClim 2 data showed significant deviations from the probe data,by an average of-2.49°C(minimum temperature)and+1.69℃(maximum temperature).These discrepancies refl ect the use of densely vegetated and topographically complex habitats by ***,which reduce temperature ***,our results highlight the importance of natural vegetal cover in the conservation of populations of this endemic salamander.

关键词： Fire salamander Island endemic Microclimate Probe Threatened species

Using hierarchical spatial models to assess the occurrence of an island endemism: the case of Salamandra corsica

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Ecological Processes 2019年第1期8卷 199-209页

作者： Daniel Escoriza axel Hernandez GRECO Institute of Aquatic EcologyUniversity of Girona17071 GironaSpain Department of Environmental Sciences University Pasquale Paoli20250 CorteFrance.

Background:Island species are vulnerable to rapid extinction,so it is important to develop accurate methods to determine their occurrence and habitat *** this study,we assessed two methods for modeling the occurrence of the Corsican endemic Salamandra corsica,based on macro-ecological and fine habitat *** expected that models based on habitat descriptors would better estimate *** occurrence,because its distribution could be influenced by micro-environmental *** occurrence of *** was modeled according to two ensembles of variables using random ***:Salamandra corsica was mainly found in forested habitats,with a complex vertical *** habitats are associated with more stable environmental *** model based on fine habitat descriptors was better able to predict occurrence,and gave no false *** model based on macro-ecological variables underestimated the occurrence of the species on its ecological boundary,which is important as such locations may facilitate interpopulation ***:Implementing fine spatial resolution models requires greater investment of resources,but this is advisable for study of microendemic species,where it is important to reduce type II error(false negatives).

关键词： Amphibian Corsica Mediterranean islands Microhabitat Salamander

Use of the area of main influence to fix a relevant boundary for mining damages in Germany

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International Journal of Mining Science and Technology 2018年第1期28卷 79-83页

作者： Denise Müller axel Preusse Faculty of Georesources and Materials Engineering Institute for Mine Surveying Mining Subsidence Engineering and Geophysics in Mining RWTH Aachen University

In 2010, the fracking discussion in Germany caused a number of changes in German law, which came into force in *** the production of gas had to be *** the legislation amendment, the Subsidence-Area Mining Regulation has been revised, *** changes expand the compensation of mining damages, especially to the extraction with drilling from the surface and underground *** the Subsidence-Area Mining Regulation has been revised, the area of main influence(subsidence of 10 cm)remains to determine a relevant boundary for mining *** determination and prediction of this boundary above caverns are presented in this *** addition, further elements of ground movements and their relevance to mine damages are *** usage of the area of main influence to fix a relevant boundary for mining damages does not correspond to the relevant elements of ground movements.A limit for differences in subsidence(tilt) or horizontal changes in length should be preferred to describe the relevance of mining damages on ***, this paper outlines the meaning of using the area of main influence to fix a relevant boundary for mining damages.

关键词： Ground movements Area of main influence Boundary for mining damages Subsidence-area mining regulation Subsidence detection Modeling above caverns

Smallest Close to Regular Bipartite Graphs without an Almost Perfect Matching

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Acta Mathematica Sinica,English Series 2010年第8期26卷 1403-1412页

作者： Lutz VOLKMANN axel ZINGSEM Lehrstuhl Ⅱ für Mathematik RWTH Aachen University

A graph G is close to regular or more precisely a （d, d ＋ k）-graph, if the degree of each vertex of G is between d and d ＋ k. Let d ≥ 2 be an integer, and let G be a connected bipartite （d, d＋k）-graph with partite sets X and Y such that ｜X｜- ｜Y｜＋1. If G is of order n without an almost perfect matching, then we show in this paper that·n ≥ 6d ＋7 when k = 1,·n ≥ 4d＋ 5 when k = 2,·n ≥ 4d＋3 when k≥*** will demonstrate that the given bounds on the order of G are the best possible.

关键词： Almost perfect matching bipartite graph close to regular graph

Vegetation cover and occurrence of salamanders in the western Mediterranean

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Integrative Zoology 2022年第3期17卷 456-467页

作者： Daniel ESCORIZA axel HERNANDEZ GRECO Institute of Aquatic EcologyUniversity of GironaGironaSpain Department of Environmental Sciences Faculty of Sciences and TechnicsUniversity Pasquale Paoli of CorsicaCorteFrance

The Mediterranean region possesses a rich diversity of salamanders,which also exhibit a high degree of ecological *** is assumed that the presence of salamanders is dependent on the level of vegetation cover in terrestrial habitats,but the strength of this association is likely to vary among *** this study,we investigated the patterns of habitat utilization for Mediterranean salamanders based on 589 records of 33 *** tested the hypothesis that the association between salamander presence and vegetation density varies among genera or reproductive modes(*** vs aquatic).The results show that vegetation cover has similar influences on terrestrial and aquatic groups but important differences are identified for lotic and lentic aquatic *** findings also indicate that the aquatic lotic,terrestrial,and small-body species deviate significantly from that expected from the background range of variation.

关键词： amphibian conservation habitat remote sensing salamander