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Internet-based data inclusion in a population-based European collaborative follow-up study of inflammatory bowel disease patients: Description of methods used and analysis of factors influencing response rates

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world Journal of Gastroenterology 2005年第45期11卷 7152-7158页

作者： Frank L wolters Gilbert van Zeijl Jildou Sijbrandij Frederik wessels Colm O'Morain Charles Limonard Maurice G Russel reinhold w stockbrügger Department of Gastroenterology and Hepatology Centre for Data and Information Management Global Vitis Adelaide and Meath Hospital

AIM： To describe an Internet-based data acquisition facility for a European 10-year clinical follow-up study project of a population-based cohort of inflammatory bowel disease （IBD） patients and to investigate the influence of demographic and disease related patient characteristics on response rates. METHODS： Thirteen years ago, the European Collaborative study group of IBD （EC-IBD） initiated a population-based prospective inception cohort of 2 201 uniformly diagnosed IBD patients within 20 well- described geographical areas in 11 European countries and Israel. For the 10-year follow-up of this cohort, an electronic patient questionnaire （ePQ） and electronic physician per patient follow-up form （ePpPFU） were designed as two separate data collecting instruments and made available through an Internet-based website. Independent demographic and clinical determinants of ePQ participation were analyzed using multivariate logistic *** number of 1 505 （64%） available IBD patients, originating from 13 participating centers from nine different countries, both ePQ and ePpPFU were completed. Patients older than 40 years at ePQ completion （OR： 1.53 （95% CI： 1.14-2.05）） and those with active disease during the 3 mo previous to ePQ completion （OR： 3.32 （95%CI： 1.57-7.03）） were significantly more likely to respond. CONCLUSION： An Internet-based data acquisition tool appeared successful in sustaining a unique western- European and Israelian multi-center 10-year clinical follow-up study project in patients afflicted with IBD.

关键词： Internet Questionnaire IBD Cohort study Population-based

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APPROXIMATING THE STATIONARY BELLMAN EQUATION BY HIERARCHICAL TENSOR PRODUCTS

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Journal of Computational Mathematics 2024年第3期42卷 638-661页

作者： Mathias Oster Leon Sallandt reinhold Schneider Technische Universität Berlin Strasse des 17.Juni 13510623 BerlinGermany

we treat infinite horizon optimal control problems by solving the associated stationary Bellman equation numerically to compute the value function and an optimal feedback *** dynamical systems under consideration are spatial discretizations of non linear parabolic partial differential equations(PDE),which means that the Bellman equation suffers from the curse of *** non linearity is handled by the Policy Iteration algorithm,where the problem is reduced to a sequence of linear equations,which remain the computational bottleneck due to their high *** reformulate the linearized Bellman equations via the Koopman operator into an operator equation,that is solved using a minimal residual *** the Koopman operator we identify a preconditioner for operator equation,which deems essential in our numerical *** overcome computational infeasability we use low rank hierarchical tensor product approximation/tree-based tensor formats,in particular tensor trains(TT tensors)and multi-polynomials,together with high-dimensional quadrature,*** controlling a destabilized version of viscous Burgers and a diffusion equation with unstable reaction term numerical evidence is given.

关键词： Feedback control Dynamic programming Hamilton-Jacobi-Bellman Tensor product approximation Variational Monte-Carlo

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Changes in children’s cardiorespiratory fitness and body mass index over the course of the COVID‑19 pandemic:a 34‑month longitudinal study of 331 primary school children

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world Journal of Pediatrics 2024年第2期20卷 185-188页

作者： Gerald Jarnig reinhold Kerbl Mireille N.M.van Poppel Institute of Human Movement Science Sport and HealthUniversity of GrazMozartgasse 148010 GrazAustria Department of Pediatrics and Adolescent Medicine LKH Hochsteiermark8700 LeobenAustria

In late 2019,heavy restrictions were enforced on public activities worldwide to diminish the spread of the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)virus[1].These restrictions,which included school closures and strictly limited sports and leisure opportunities,particularly impacted children and adolescents[2].Lifestyle changes in children and adolescents led to reduced physical activity levels[2,3],increased sedentary behavior[3,4],changes in eating habits,and changes in sleep habits[3].

关键词： respiratory acute children

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基于玻璃毛细管的大气环境MeV质子微束的产生与测量

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物理学报 2024年第10期73卷 143-152页

作者：万城亮潘俞舟朱丽萍李鹏飞张浩文赵卓彦袁华樊栩宏孙文胜杜战辉陈乾崔莹廖天发魏晓慧王天琦陈熙萌李公平 reinhold Schuch 张红强兰州大学核科学与技术学院兰州730000 兰州大学基础医学院兰州730000 哈尔滨工程大学核科学与技术学院哈尔滨150001 南通大学理学院南通226019 惠州学院电子信息与电气工程学院惠州516067 哈尔滨工业大学空间环境与物质科学研究院哈尔滨150006 兰州大学稀有同位素前沿科学中心兰州730000 斯德哥尔摩大学物理系斯德哥尔摩S-10691

本文采用玻璃毛细管产生了大气环境中工作的2.5 MeV质子外束微束,并对束斑直径及能量分布随玻璃毛细管与束流方向之间角度(倾角)变化进行测量.测量结果表明,在玻璃毛细管轴向与束流方向一致时(倾角为0°),产生的微束中存在保持初始入射... 详细信息

本文采用玻璃毛细管产生了大气环境中工作的2.5 MeV质子外束微束,并对束斑直径及能量分布随玻璃毛细管与束流方向之间角度(倾角)变化进行测量.测量结果表明,在玻璃毛细管轴向与束流方向一致时(倾角为0°),产生的微束中存在保持初始入射能量的直接穿透部分以及散射部分,其中直接穿透的质子占比最大,束斑直径也最大.随着玻璃毛细管倾角的增大,当其大于几何张角时,束斑直径变小,产生的微束全部为能量减小的散射部分,直接穿透质子消失.我们对质子在玻璃毛细管内传输时的内壁散射过程进行了模拟计算及离子轨迹分析,发现大角度的散射部分决定了形成的外束微束斑外围轮廓,而束斑中心区域由不与毛细管内壁产生任何作用的直接穿透离子构成,其大小由玻璃毛细管出口直径以及几何容许张角决定.采用玻璃毛细管产生的外束微束具有产生简单廉价,微束区域定位简单的特点,有望在辐射生物学、医学、材料等领域得到广泛应用.

关键词：离子外束微束 MeV质子锥形玻璃毛细管

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Error Estimates of Some Numerical Atomic Orbitals in Molecular Simulations

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Communications in Computational Physics 2015年第6期18卷 125-146页

作者： Huajie Chen reinhold Schneider Zentrum Mathematik Technische Universitat MunchenBoltzmannstraße 385747 GarchingGermany Institut fur Mathematik Technische Universitat BerlinStraße des 17.Juni 136D-10623 BerlinGermany

Numerical atomic orbitals have been successfully used in molecular simulations as a basis set,which provides a nature,physical description of the electronic states and is suitable for ■(N)calculations based on the strictly localized *** paper presents a numerical analysis for some simplified atomic orbitals,with polynomial-type and confined Hydrogen-like radial basis functions *** give some a priori error estimates to understand why numerical atomic orbitals are computationally efficient in electronic structure calculations.

关键词： Kohn-Sham density functional theory numerical atomic orbitals Slater-type orbitals a priori error estimate

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Heat Treatment and Properties of Nitrogen Alloyed, Martensitic, Corrosion-resistant Steels

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材料热处理学报 2004年第5期25卷 582-587页

作者： reinhold Schneider Klaus Sammt Roland Rabitsch Michael Haspel BOHLER Edelstahl GmbH Kapfenberg Austria

This paper gives a short introduction to the typical process route and material properties of these steels in comparison to standard martensitic corrosion-resistant steels. The typical response of these steels to various heat treatment parameters is shown and explained using the three grades M333, N360 and M340 (all made by Bohler Edelstahl GmbH) as examples, and the physical metallurgy of these steels and its consequences for practical heat treatment is explained. The correlation between tempering parameters and their effect on the toughness and corrosion properties is explained in particular detail, showing that these new steels not only offer far better property combinations under the usual heat treatment parameters than standard martensitic corrosion-resistant steels, but that they also open the door to extending heat treatment combinations and properties.

关键词：热处理高氮钢马氏体钢抗腐蚀钢

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DIRECT MINIMIZATION FOR CALCULATING INVARIANT SUBSPACES IN DENSITY FUNCTIONAL COMPUTATIONS OF THE ELECTRONIC STRUCTURE

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Journal of Computational Mathematics 2009年第2期27卷 360-387页

作者： reinhold Schneider Thorsten Rohwedder Alexey Neelov Johannes Blauert Institute for Mathematics Technical University BerlinStraβe des 17.Juni 13510623 BerlinGermany Institute of Physics University of BaselKlingelbergstrasse 824056 BaselSwitzerland Institute for Mathematics Technical University BerlinStraβe des 17. Juni 13510623 BerlinGermany

In this article, we analyse three related preconditioned steepest descent algorithms, which are partially popular in Hartree-Fock and Kohn-Sham theory as well as invariant subspace computations, from the viewpoint of minimization of the corresponding functionals, constrained by orthogonality conditions. we exploit the geometry of the admissible manifold, i.e., the invariance with respect to unitary transformations, to reformulate the problem on the Grassmann manifold as the admissible set. we then prove asymptotical linear convergence of the algorithms under the condition that the Hessian of the corresponding Lagrangian is elliptic on the tangent space of the Grassmann manifold at the minimizer.

关键词： Eigenvalue computation Grassmann manifolds Optimization Orthogonalityconstraints Hartree-Fock theory Density functional theory PINVIT

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Periprosthetic knee joint infection caused by Brucella melitensis which was first-osteoarticular brucellosis or osteoarthrosis:A case report

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world Journal of Clinical Cases 2023年第3期11卷 677-683页

作者： Thomas Stumpner Regina Kuhn Josef Hochreiter reinhold Ortmaier Department of Orthopaedic Surgery Ordensklinikum Linz Barmherzige SchwesternLinz 4010Austria

BACKGROUND Brucellosis is the most common zoonosis worldwide and is endemic in the Middle East,Africa,Asia,and Latin ***,it is uncommon in Central Europe,and periprosthetic infections caused by Brucella are therefore *** to the low prevalence and nonspecific clinical presentation of the disease,accurate diagnosis can be challenging;no gold standard currently exists for treating *** SUMMARY Here,we present a 68-year-old Afghan woman living in Austria with a periprosthetic knee infection caused by Brucella *** interval from total knee arthroplasty to septic loosening was five years.A profound medical history and examinations suggested that the patient had been suffering from unrecognized chronic osteoarticular brucellosis prior to total knee *** was successfully treated by two-stage revision surgery and combined antibiotic therapy over three *** Clinicians should consider brucellosis as a possible cause of chronic arthralgia and periprosthetic infection in patients originating from countries with a high brucellosis burden.

关键词： Brucellosis Arthroplasty Infection Osteoarticular Knee Case report

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VEHICLE-GUIDEwAY DYNAMICS OF A HIGH-SPEED MAGLEV TRAIN

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上海力学 1991年第1期 9-20页

作者： reinhold Meisinger Georg-Simon-Ohm Fachhochschule Nurnberg FRG

*** During the past few years in creasing interest has developed in new forms ofhigh speed grourtd transportation systems, cf. [11].one of the best of several possibilities is to support the train with controlled elec... 详细信息

关键词： mode VEHICLE-GUIDEwAY DYNAMICS OF A HIGH-SPEED MAGLEV TRAIN Simulation

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Dual role for atypical chemokine receptor 1 in myeloid cell hematopoiesis and distribution

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Cellular & Molecular Immunology 2018年第4期15卷 399-401页

作者： Marc Permanyer Berislav Bošnjak reinhold Förster Institute of Immunology Hannover Medical SchoolCarl-Neuberg-Strabe 1Hannover 30625Germany

Similar to conventional chemokine receptors,atypical chemokine receptors(ACKRs)are cell-surface receptors that possess a seven transmembrane domain structure and regulate immune responses by interacting with ***,ACKRs differ from conventional chemokine receptors because of their inability to couple to G proteins and therefore to transduce intracellular signals mediating leukocyte migration upon chemokine ***,ACKRs internalize,transport or scavenge chemokines,regulating their extracellular availability,and thus impacting homeostasis,inflammation and immune response.

关键词： chemokine atypical homeostasis

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