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Reform Needed

The structural basis of oscillation damping in plant stems-biomechanics and biomimetics

中国与非洲(英文版) 2021年第1期

作者： Hannah Marais hanns spangenberg Sam Rolland

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Journal of Bionic Engineering 2004年第3期1卷 149-158页

作者： hanns-Christof Spatz Anton Emanns Olga Speck Competence Network Biomimetics Plant Biomechanics Group Fakultt für Biologie Albert-Ludwigs-Universitt Freiburg Schnzlestr. 1 D –79104 Freiburg GermanyCompetence Network Biomimetics Plant Biomechanics Group Fakultt für BiologieAlbert-Ludwigs-Universitt Freiburg Schnzlestr. 1 D –79104 Freiburg GermanyCompetence Network Biomimetics Plant Biomechanics Group Fakultt für BiologieAlbert-Ludwigs-Universitt Freiburg Schnzlestr. 1 D –79104 Freiburg Germany

Oscillations and their damping were investigated for plant stems of Cyperus alternifolius L., Equisetum hyemale L., Equisetum fluviatile L., Juncus effuses L., Stipa gigantea Link, and Thamnocalamus spathaceus (Franch.) Soderstr. With the exception of T. spathaceus, mechanical damping of the oscillation of individual plant stems, even without side organs, leaves or inflorescences, is quite effective. Our experiments support the hypothesis that embedding stiff sclerenchymatous elements in a more compliant parenchymatous matrix provides the structural basis for the dissipation of mechanical energy in the plant stem. As an application the naturally occurring structures were mimicked in a compound material made from hemp fabrics em- bedded in polyurethane foam, cured under pressure. Like its natural model it shows plastic deformability and viscoelastic be- haviour. In particular the material is characterized by a remarkably high shock absorption capacity even for high impact loads.

关键词： biomechanics biomimetics compound materials damped oscillations plants shock absorption viscoelasticity.

Tuning the magnetic anisotropy in LSMO manganite films through non-magnetic nanoparticles

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Progress in Natural Science:Materials International 2013年第2期23卷 127-132页

作者： Yuze Gao Jincang Zhang Xinwen Fu Guixin Cao hanns-Ulrich Habermeier Max Planck Institute for Solid State Research Department of Physics Shanghai University Department of Materials Science and Engineering University of Tennessee Materials Science and Technology Division Oak Ridge National Laboratory

We report the observation of anomalous magnetic anisotropy driven by nonmagnetic ZrO2 nanoparticles in epitaxial La2/3Sr1/3MnO (LSMO) films grown on LaAlO3 (LAO) substrates. The compressive epitaxial strain imposed by the lattice mismatch of substrate and film is tuned by the density of ZrO2 nanoparticles embedded in the film matrix and affects the magnetic anisotropy as well as the magnetotransport properties. Epitaxial 54 nm thick LSMO thin films with different concentrations of ZrO2 nanoparticles demonstrate anisotropic hysteresis loops concomitant with anisotropic magnetotresistance behavior. The biaxial epitaxial strain, induced by the substrate/film lattice parameter mismatch is partially relaxed by increasing the density of precipitates and they serve as a tuning parameter for the strain state. We interpret our results by a strain-induced interplay of impurity scattering, weak localization and magnetic domain structure.

关键词： Kondo-like effect Magnetic domains Biaxial epitaxial strain Anisotropic magnetic hysteresis Non-magnetic nano-scaled precipitates

Tunable and switchable polarization rotation with non-reciprocal plasmonic thin films at designated wavelengths

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Light(Science & Applications) 2015年第1期4卷 374-380页

作者： Dominik Floess Jessie Y Chin Akihito Kawatani Daniel Dregely hanns-Ulrich Habermeier Thomas Weiss Harald Giessen th Physics Institute and Research Center SCOPE University of Stuttgart70550 StuttgartGermany Max Planck Institute for Solid State Research 70569 StuttgartGermany

We experimentally demonstrate an ultra-thin plasmonic optical rotator in the visible regime that induces a polarization rotation that is continuously tunable and switchable by an external magnetic *** rotator is a magneto-plasmonic hybrid structure consisting of a magneto-optical EuSe slab and a one-dimensional plasmonic gold *** low temperatures,EuSe possesses a large Verdet constant and exhibits Faraday rotation,which does not saturate over a regime of several *** combining these properties with plasmonic Faraday rotation enhancement,a large tuning range of the polarization rotation of up to 8.4° for a film thickness of 220 nm is ***,through experiments and simulations,we demonstrate that the unique dispersion properties of the structure enable us to tailor the wavelengths of the tunable polarization rotation to arbitrary spectral positions within the transparency window of the magneto-optical *** demonstrated concept might lead to important,highly integrated,non-reciprocal,photonic devices for light modulation,optical isolation,and magnetic field optical *** simple fabrication of EuSe nanostructures by physical vapor deposition opens the way for many potentially interesting magneto-plasmonic systems and three-dimensional magneto-optical metamaterials.

关键词： active tuning Faraday rotation magneto-optics non-reciprocity optical rotator

Rare co-occurrence of osteogenesis imperfecta type Ⅰ and autosomal dominant polycystic kidney disease

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世界儿科杂志:英文版 2016年第4期12卷 501-503页

作者： Julia Hoefele Karin Mayer Christoph Marschall Martin Alberer hanns-Georg Klein Martin Kirschstein Center for Human Genetics and Laboratory Diagnostics Dr.Klein Dr.Rost and ColleaguesMartinsriedGermany Institute of Human Genetics Technische Universitat MünchenMunichGermany Department of Infectious Diseases and Tropical Medicine Ludwig-Maximilians UniversityMunichGermany Department of Pediatrics General HospitalCelleGermany

Background:There are several clinical reports about the co-occurrence of autosomal dominant polycystic kidney disease(ADPKD)and connective tissue disorders.A simultaneous occurrence of osteogenesis imperfecta(OI)type I and ADPKD has not been observed so ***:This report presents the first patient with OI type I and ***:Mutational analysis of PKD1 and COL1A1 in the index patient revealed a heterozygous mutation in each of the two *** analysis of the parents indicated the mother as a carrier of the PKD1 mutation and the father as a carrier of the COL1A1 *** simultaneous occurrence of both disorders has an estimated frequency of 3.5:***:In singular cases,ADPKD can occur in combination with other rare disorders,*** tissue disorders.

关键词： kidney disease osteogenesis imperfecta polycystic kidney

Synergistic effects of interferon-alpha in combination with chemoradiation on human pancreatic adenocarcinoma

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World Journal of Gastroenterology 2005年第10期11卷 1521-1528页

作者： Jian-Hua Ma Emilia Patrut Jan Schmidt hanns-Peter Knaebel Markus W. Büchler Angela M(a|¨)rten Department of Surgery

AIM: To determine whether IFN-α is the agent that turns a slightly effective treatment (radiochemotherapy) into a potent therapy, we tested IFN-α for its synergistic ***: Eight pancreatic carcinoma cell lines were treated with the single agents and combinations of *** role of IFN-α regarding a) direct inhibitory effects; b)radio and chemosensitizing effects; c) anti-angiogenic properties and d) enhancement of immunogenicity was ***: Our results show that IFN-α has direct inhibitory properties and some synergistic influence as determined by AnnexinV/PI stain and cell count. IFN-α is also able to prevent the increase in proliferation rate and VEGF secretion of CDDP resistant cells. Having taken the results from immunogenicity experiments together, we found cells that can be influenced by IFN-α but were less susceptible against T cells. Furthermore, high expression of MHC molecules, CD118, EGF-R and Fas was predictive for a good ***: In conclusion, IFN-α has direct cytotoxic effects, acts as a radiosensitizer and circumvents tumor cell-regrowth after CDDP treatment. These mechanisms may be responsible for the good clinical outcome of CapRI.

关键词： Interferon-alpha Pancreatic adenocarcinoma Synergistic effects Combination therapy

Real Estate Evaluation in Germany

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Journal of Geodesy and Geomatics Engineering 2014年第1期1卷 11-17页

作者： Otmar Schuster hanns-Florian Schuster GEOhaus-House of Geoinformation Muelheim at the Ruhr Germany

The real estate market is at risk to produce economic bubbles, which produce heavy financial losses while bursting. To flatten these bubbles, Germany tried since the 1960s a way of thorough analysis and high transparency of the real estate market as a public task. The experts from different professions in the local market effectively are included in a honorary form. The competition between the experts and also between the experts and the public institution is intentionally maintained.

关键词： Real estate valuation committees of experts on real estate evaluation purchasing price data base BauGB (FederalBuilding Code).

Binary Fruit Fly Swarm Algorithms for the Set Covering Problem

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Computers, Materials & Continua 2022年第6期71卷 4295-4318页

作者： Broderick Crawford Ricardo Soto hanns de la Fuente Mella Claudio Elortegui Wenceslao Palma Claudio Torres-Rojas Claudia Vasconcellos-Gaete Marcelo Becerra Javier Pena Sanjay Misra Pontificia Universidad Católica de Valparaíso Valparaíso2362807Chile LERIA Universitéd’AngersAngers49000France Department of Computer Science and Communication Ostfold University CollegeHaldenNorway

Currently,the industry is experiencing an exponential increase in dealing with binary-based combinatorial *** this sense,metaheuristics have been a common trend in the field in order to design approaches to solve them ***,a well-known strategy consists in the use of algorithms based on discrete swarms transformed to perform in binary *** the No Free Lunch theorem,we are interested in testing the performance of the Fruit Fly Algorithm,this is a bio-inspired metaheuristic for deducing global optimization in continuous spaces,based on the foraging behavior of the fruit fly,which usually has much better sensory perception of smell and vision than any other *** the other hand,the Set Coverage Problem is a well-known NP-hard problem with many practical applications,including production line balancing,utility installation,and crew scheduling in railroad and mass transit *** this paper,we propose different binarization methods for the Fruit Fly Algorithm,using Sshaped and V-shaped transfer functions and various discretization methods to make the algorithm work in a binary search *** are motivated with this approach,because in this way we can deliver to future researchers interested in this area,a way to be able to work with continuous metaheuristics in binary *** new approach was tested on benchmark instances of the Set Coverage Problem and the computational results show that the proposed algorithm is robust enough to produce good results with low computational cost.

关键词： Set covering problem fruit fly swarm algorithm metaheuristics binarization methods combinatorial optimization problem

Impact of gastroesophageal reflux control through tailored proton pump inhibition therapy or fundoplication in patients with Barrett's esophagus

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World Journal of Gastroenterology 2017年第17期23卷 3174-3183页

作者： Francisco Baldaque-Silva Michael Vieth Mumen Debel Bengt Hakanson Anders Thorell Nuno Lunet Huan Song Miguel Mascarenhas-Saraiva Gisela Pereira Lars Lundell hanns-Ulrich Marschall Institute of Medicine Karolinska InstitutetKarolinska University Hospital Department of Pathology Klinikum Bayreuth Department of Surgery Ersta Hospital Department of Clinical Sciences DanderydKarolinska Institutet Department of Clinical Epidemiology Predictive Medicine and Public HealthUniversity of Porto Medical School Department of Medical Epidemiology and Biostatistics Karolinska Institutet Department of Gastroenterology Manop H and Instituto CUF Clintec Karolinska InstitutetKarolinska University Hospital Department of Molecular and Clinical Medicine Sahlgrenska AcademyUniversity of Gothenburg

AIM To determine the impact of upwards titration of proton pump inhibition(PPI) on acid reflux, symptom scores and histology, compared to clinically successful *** Two cohorts of long-segment Barrett's esophagus(BE) patients were studied. In group 1(n = 24), increasing doses of PPI were administered in 8-wk intervals until acid reflux normalization. At each assessment, ambulatory 24 h p H recording, endoscopy with biopsies and symptom scoring(by a gastroesophageal reflux disease health related quality of life questionnaire, GERD/HRLQ) were performed. Group 2(n = 30) consisted of patients with a previous fundoplication. RESULTS In group 1, acid reflux normalized in 23 of 24 patients, resulting in improved GERD/HRQL scores(P = 0.001), which were most pronounced after the starting dose of PPI(P < 0.001). PPI treatment reached the same level of GERD/HRQL scores as after a clinically successful fundoplication(P = 0.5). Normalization of acid reflux in both groups was associated with reduction in papillary length, basal cell layer thickness, intercellular space dilatation, and acute and chronic inflammation of squamous epithelium. CONCLUSION This study shows that acid reflux and symptom scores co-vary throughout PPI increments in long-segment BE patients, especially after the first dose of PPI, reaching the same level as after a successful fundoplication. Minor changes were found among GERD markers at the morphological level.

关键词： Barrett’s esophagus Acid reflux Proton pump inhibitors Health related quality of life Gastroesophageal reflux Symptom control Antireflux surgery