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Introduction to holographic superconductor models

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Science China(Physics,Mechanics & Astronomy) 2015年第6期58卷 1-46页

作者： CAI RongGen LI Li LI LiFang YANG RunQiu State Key Laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of Sciences Crete Center for Theoretical Physics Department of PhysicsUniversity of Crete State Key Laboratory of Space Weather Center for Space Science and Applied ResearchChinese Academy of Sciences

In the last years it has been shown that some properties of strongly coupled superconductors can be potentially described by classical general relativity living in one higher dimension,which is known as holographic *** paper gives a quick and introductory overview of some holographic superconductor models with s-wave,p-wave and d-wave orders in the literature from point of view of bottom-up,and summarizes some basic properties of these holographic models in various *** competition and coexistence of these superconductivity orders are also studied in these superconductor models.

关键词： holographic duality superconductivity classical theories of gravity conformal field theory

Caustics of developable surfaces

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Frontiers of Information Technology & Electronic Engineering 2022年第3期23卷 479-487页

作者： Miklos HOFFMANN Imre JUHASZ Ede TROLL Institute of Mathematics and Computer Science Eszterhazy Karoly UniversityEger 3300Hungary Department of Computer Graphics and Image Processing University of DebrecenDebrecen 4010Hungary Department of Descriptive Geometry University of MiskolcMiskolc 3515Hungary

While considering a mirror and light rays coming either from a point source or from infinity,the reflected light rays may have an envelope,called a caustic *** this paper,we study developable surfaces as *** caustic surfaces,described in a closed form,are also developable surfaces of the same type as the original mirror *** provide efficient,algorithmic computation to find the caustic surface of each of the three types of developable surfaces(cone,cylinder,and tangent surface of a spatial curve).We also provide a potential application of the results in contemporary free-form architecture design.

关键词： Caustics Developable surface Reflected light rays Curve of regression

Serological biomarkers for management of primary sclerosing cholangitis

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World Journal of Gastroenterology 2022年第21期28卷 2291-2301页

作者： David Tornai Peter Laszlo Ven Peter Laszlo Lakatos Maria Papp Division of Gastroenterology Department of Internal MedicineFaculty of MedicineUniversity of DebrecenDebrecen H-4032Hajdu-BiharHungary european Reference Network on Hepatological Diseases ERN RARE-LIVERDebrecen H-4032Hajdu-BiharHungary The First Department of Medicine Division of GastroenterologyUniversity of PécsPécs H-7624BaranyaHungary Kálmán Laki Doctoral School of Biomedical and Clinical Sciences Faculty of MedicineUniversity of DebrecenDebrecen H-4032Hajdu-BiharHungary Division of Gastroenterology McGill University Health CentreMontreal QC H4A 3J1QuebecCanada The First Department of Medicine Semmelweis UniversityBudapest H-1083PestHungary

Clinical manifestations and progression of primary sclerosing cholangitis(PSC)are heterogeneous,and its pathogenesis is poorly *** importance of gut-liver interactions in the pathogenesis has been clinically confirmed and highlighted in different *** advances regarding biomarkers of biliarygut crosstalk may help to identify clinically relevant PSC subgroups assisting everyday clinical work-up(e.g.,diagnosis,disease stratification,or surveillance)and the exploration of potential therapeutic *** phosphatase produced by the biliary epithelium is consistently associated with ***,its level shows natural fluctuation limiting its use in individual ***,cell activation,and tissue remodeling markers have been reported to predict clinical *** immunoglobulin(Ig)G4 level is associated with a shorter transplantation-free *** type atypical perinuclear anti-neutrophil cytoplasmic antibodies(P-ANCAs)are non-specific markers of various autoimmune liver diseases and may reflect an abnormal B-cell response to gut microbial *** type atypical P-ANCA identifies PSC patients with particular clinical and genetic(for human leukocyte antigens)*** presence of IgA type anti-F-actin antibody(AAA)may predict a progressive disease course,and it is associated with enhanced mucosal immune response to various microbial antigens and enterocyte *** type anti-glycoprotein 2(GP2)antibodies identify patients with a severe disease phenotype and poor survival due to enhanced fibrogenesis or development of *** soluble vascular adhesion protein-1(sVAP-1)level is associated with adverse disease outcomes in *** sVAP-1 levels correlate with mucosal addressin cell adhesion molecule-1(MAdCAM-1)expression in the liver that contributes to gut activated T-cell homing to the hepatobiliary *** the present paper,we review the evidence on these possible serological ma

关键词： Primary sclerosing cholangitis Hepatobiliary Serological biomarker Immunoglobulin Inflammatory Tissue remodeling

Cultivating Pleurotus ostreatus and Pleurotus eryngii mushroom strains onagro-industrial residues in solid-state fermentation. Part II: Effect onproductivity and quality of carposomes

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Carbon Resources Conversion 2022年第1期5卷 52-60页

作者： Eirini-Maria Melanouri Marianna Dedousi Panagiota Diamantopoulou Laboratory of Edible Fungi Institute of Technology of Agricultural ProductsHellenic Agricultural Organization-Demeter1 S.Venizelou Street14123 LykovrysiAttiki Greece

The potential of selected Pleurotus ostreatus and P. eryngii wild-type and commercial strains to colonize andproduce carposomes after solid-state fermentation of five substrates constituted of agro-residues namely wheatstraw (WS), beech wood shavings (BWS), coffee residue (CR), barley and oats straw (BOS), rice bark (RB),supplemented with wheat bran was investigated. The effect of substrate composition on bioprocess feasibilitywas assessed for the different strains by quantitative (i.e., mushroom yield and Biological Efficiency-BE %) andcarposome qualitative parameters (i.e., weight, size, colour, firmness). P. ostreatus strains produced carposomesearlier than P. eryngii ones. Early fruiting formation was promoted in WS for P. ostreatus strains, whereas forP. eryngii the lowest values of earliness were observed on BOS substrate. As for crop productivity, P. ostreatusstrain AMRL 150 provided the highest BE (>70%) in all substrates except for RB, while P. ostreatus strain AMRL144 achieved the highest yield and BE in BOS and BWS (75.30 and 64.26%, respectively). P. eryngii stainsproduced less number but heavier carposomes. The highest values of BE% for these strains were recorded on WSand BOS substrates. The BE was further correlated to growth parameters of fungal vegetative phase. As formushroom colour, P. ostreatus were lighter than P. eryngii and BOS substrate promoted lightness in both *** P. ostreatus mushrooms were produced at CR. No differences in the whiteness and firmness were detectedamong P. eryngii mushrooms and at any substrate used. The data included in this paper showed that Pleurotusmushrooms can be cultivated on low- or zero-value agro-industrial residues of great financial and environmentalimportance towards the production of value-added food products.

关键词： Oyster mushrooms Biological efficiency Carposomes Pileus Stipe Colour Texture

Fluorination of suspended graphene

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Nano Research 2017年第9期10卷 3151-3163页

作者： Claudia Struzzi Mattia Scardamaglia Nicolas Reckinger Jean-Francois Colomer Hikmet Sezen Matteo Amati Luca Gregoratti Rony Snyders Carla Bittencourt Chimie des Interactions Plasma-Surface CIRMAP University of Mons 7000 Mons Belgium Research Group on Carbon Nanostructures (CARBONNAGe) University of Namur 5000 Namur Belgium Elettra - Sincrotrone Trieste S.C.p.A. di interesse nazionale Strada Statale 14 km 163.5 34149 Trieste Italy Materia Nova Research Center B-7000 Mons Belgium

Suspended graphene is exposed to different fluorine-containing species produced by a plasma source fed with CF4 precursor gas. We investigate the fluorination process by selecting two different kinetic energies for the ions striking the graphene surface. The chemical-bonding environment is discussed, and the control of the graphene-fluorination homogeneity is investigated at the individual graphene sheets. The modifications of the electronic and structural properties are examined by scanning photoelectron microscopy, micro-Raman analysis, and scanning electron microscopy. The results are compared with those obtained for supported graphene on copper. Suspended graphene provides a quasi-ideal model for investigating the intrinsic properties of irradiated carbon nano-systems while avoiding damage due to backscattered atoms and recoil due to a supporting substrate.

关键词： graphene fluorination spectromicroscopy X-ray photoelectron spectroscopy (XPS) Raman scanning electron microscopy (SEM)

Modification of tooth development by heat shock protein 60

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International Journal of Oral Science 2016年第1期8卷 24-31页

作者： Tamas Papp Angela Polyak Krisztina Papp Zoltan Meszar Roza Zakany Eva Meszar-Katona Paine Terdik Tiinde Chang Hwa Ham Szabolcs Felszeghy Department of Anatomy Histologyand EmbryologyFaculty of MedicineUniversity of DebrecenDebrecenHungary Scoliosis Research Institute Korea University Guro HospitalSeoul Department of Oral Anatomy Faculty of DentistryUniversity of DebrecenDebrecenHungary

several heat shock proteins have been investigated in relation to tooth development, no available information is available about the spatial and temporal expression pattern of heat shock protein 60 （Hsp 60）. To characterize Hsp 60 expression in the structures of the developing tooth germ, we used Western blotting, immunohistochemistry and in situ hybridization. Hsp 60 was present in high amounts in the inner and outer enamel epithelia, enamel knot （EK） and stratum intermedium （SI）. Hsp 60 also appeared in odontoblasts beginning in the bell stage. To obtain data on the possible effect of Hsp 60 on isolated lower incisors from mice, we performed in vitro culturing. To investigate the effect of exogenous Hsp 60 on the cell cycle during culturing, we used the 5-bromo-2- deoxyuridine （BrdU） incorporation test on dental cells. Exogenously administered Hsp 60 caused bluntness at the apical part of the 16.5-day-old tooth germs, but it did not influence the proliferation rate of dental cells. We identified the expression of Hsp 60 in the developing tooth germ, which was present in high concentrations in the inner and outer enamel epithelia, EK, SI and odontoblasts. High concentration of exogenous Hsp 60 can cause abnormal morphology of the tooth germ, but it did not influence the proliferation rate of the dental cells. Our results suggest that increased levels of Hsp 60 may cause abnormalities in the morphological development of the tooth germ and support the data on the significance of Hsp during the developmental processes.

关键词： enamel organ heat shock protein 60 inhibitor of κB kinase morphology mouse tooth development

Integration of machine learning with phase field method to model the electromigration induced Cu_(6)Sn_(5) IMC growth at anode side Cu/Sn interface

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Journal of Materials Science & Technology 2020年第24期59卷 203-219页

作者： Anil Kunwar Yuri Amorim Coutinho Johan Hektor Haitao Ma Nele Moelans Department of Materials Engineering KU LeuvenKasteelpark Arenberg 44LeuvenB-3001Belgium LUNARC-Centre for Scientific and Technical Computing at Lund University Lund UniversityP.O.Box 118SE-22100LundSweden Deutsches Elektronen-Synchrotron(DESY) Notkestrasse 85Hamburg22607Germany School of Materials Science and Engineering Dalian University of TechnologyDalian116024China

Currently,in the era of big data and 5G communication technology,electromigration has become a serious reliability issue for the miniaturized solder joints used in microelectronic *** the effective charge number(Z*)is considered as the driving force for electromigration,the lack of accurate experimental values for Z* poses severe challenges for the simulation-aided design of electronic *** this work,a data-driven framework is developed to predict the Z* values of Cu and Sn species at the anode based LIQUID,Cu_(6)Sn_(5) intermetallic compound(IMC)and FCC phases for the binary Cu-Sn system undergoing electromigration at 523.15 *** growth rate constants(kem)of the anode IMC at several magnitudes of applied low current density(j=1×10^6 to 10×10^6A/m^2)are extracted from simulations based on a 1D multi-phase field model.A neural network employing Z* and j as input features,whereas utilizing these computed kemdata as the expected output is *** results of the neural network analysis are optimized with experimental growth rate constants to estimate the effective charge *** a negligible increase in temperature at low j values,effective charge numbers of all phases are found to increase with current density and the increase is much more pronounced for the IMC *** predicted values of effective charge numbers Z* are then utilized in a 2D simulation to observe the anode IMC grain growth and electrical resistance changes in the multi-phase *** the work consists of the aspects of experiments,theory,computation,and machine learning,it can be called the four paradigms approach for the study of electromigration in Pb-free *** a combination of multiple paradigms of materials design can be problem-solving for any future research scenario that is marked by uncertainties regarding the determination of material properties.

关键词： Phase field method Artificial neural network Intemetallic compound Current density Synchrotron radiation

Modification of tenascin-R expression following unilateral labyrinthectomy in rats indicates its possible role in neural plasticity of the vestibular neural circuit

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Neural Regeneration Research 2015年第9期10卷 1463-1470页

作者： Botond Gaal Einar ?rn Jóhannesson Amit Dattani Agnes Magyar Ildikó Wéber Clara Matesz Department of Anatomy Histology and Embryology Faculty of Medicine and Faculty of Dentistry University of Debrecen Department of Pediatric Surgery Faculty of Medicine Clinical Center University of Debrecen MTA-DE Neuroscience Research Group University of Debrecen

We have previously found that unilateral labyrinthectomy is accompanied by modification of hyaluronan and chondroitin sulfate proteoglycan staining in the lateral vestibular nucleus of rats and the time course of subsequent reorganization of extracellular matrix assembly correlates to the restoration of impaired vestibular function. The tenascin-R has repelling effect on pathfinding during axonal growth/regrowth, and thus inhibits neural circuit repair. By using immunohistochemical method, we studied the modification of tenascin-R expression in the superior, medial, lateral, and descending vestibular nuclei of the rat following unilateral labyrin- thectomy. On postoperative day 1, tenascin-R reaction in the perineuronal nets disappeared on the side of labyrinthectomy in the superior, lateral, medial, and rostral part of the descending vestibular nuclei. On survival day 3, the staining intensity of tenascin-R reaction in perineuronal nets recovered on the operated side of the medial vestibular nucleus, whereas it was restored by the time of postoperative day 7 in the superior, lateral and rostral part of the descending vestib- ular nuclei. The staining intensity of tenascin-R reaction remained unchanged in the caudal part of the descending vestibular nucleus bilaterally. Regional differences in the modification of tena- scin-R expression presented here may be associated with different roles of individual vestibular nuclei in the compensatory processes. The decreased expression of the tenascin-R may suggest the extracellular facilitation of plastic modifications in the vestibular neural circuit after lesion of the labyrinthine receptors.

关键词： nerve regeneration extracellular matrix brainstem vestibular system vestibular lesion vestibular compensation perineuronal net neural plasticity neural regeneration

Connector theory for reusing model results to determine materials properties

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npj Computational Materials 2022年第1期8卷 923-930页

作者： Marco Vanzini Ayoub Aouina Martin Panholzer Matteo Gatti Lucia Reining LSI CNRSCEA/DRF/IRAMISÉcole PolytechniqueInstitut Polytechnique de ParisF-91120PalaiseauFrance Theory and Simulation of Materials(THEOS) École Polytechnique Fédérale de LausanneCH-1015LausanneSwitzerland european Theoretical Spectroscopy Facility(ETSF)https://www.etsf.eu Johannes Kepler University Linz LinzAustria Uni Software Plus GmbH Linzer Strasse 64320PergAustria Synchrotron SOLEIL L’Orme des MerisiersSaint-AubinBP 48F-91192Gif-sur-YvetteFrance

The success of Density Functional Theory(DFT)is partly due to that of simple approximations,such as the Local Density Approximation(LDA),which uses results of a model,the homogeneous electron gas,to simulate exchange-correlation effects in real *** turn this intuitive approximation into a general and in principle exact theory by introducing the concept of a connector:a prescription how to use results of a model system in order to simulate a given quantity in a real *** this framework,the LDA can be understood as one particular approximation for a connector that is designed to link the exchange-correlation potentials in the real material to that of the *** the in principle exact connector equations allows us to go beyond the LDA in a systematic ***,connector theory is not bound to DFT,and it suggests approximations also for other functionals and other *** explain why this very general approach is indeed a convenient starting point for *** illustrate our purposes with simple but pertinent examples.

关键词： materials theory exact