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Glide symmetry protected higher-order topological insulators from semimetals with butterfly-like nodal lines

npj Computational.materials 2021年第1期7卷 1871-1876页

作者： Xiaoting Zhou Chuang-Han Hsu Cheng-Yi Huang Mikel Iraola juan l.mañes maia G.Vergniory Hsin lin Nicholas Kioussis Department of Physics and Astronomy California State UniversityNorthridgeCA 91330USA Department of Electrical and Computer Engineering Faculty of EngineeringNational University of SingaporeSingapore 117583Singapore Institute of Physics Academia SinicaTaipei 115201Taiwan Donostia International Physics Center Donostia-San Sebastian 20018Spain Department of Condensed matter Physics University of the Basque Country UPV/EHUApartado 644Bilbao 48080Spain IKERBASQUE Basque Foundation for ScienceMaria Diaz de Haro 3Bilbao 48013Spain

Most topological insulators(TIs)discovered today in spinful systems can be transformed from topological semimetals(TSMs)with vanishing bulk gap via introducing the spin-orbit coupling(SOC),which manifests the intrinsic links between the gapped topological insulator phases and the gapless ***,we have discovered a family of TSMs in time-reversal invariant spinless systems,which host butterfly-like nodal-lines(Nls)consisting of a pair of identical concentric intersecting coplanar ellipses(CICE).In this Communication,we unveil the intrinsic link between this exotic class of nodal-line semimetals(NlSMs)and a Z_(4)=2 topological crystalline insulator(TCI),by including substantial *** demonstrate that in three space groups(i.e.,Pbam(No.55),P4/mbm(No.127),and P4_(2)/mbc(No.135)),the TCI supports a fourfold Dirac fermion on the(001)surface protected by two glide symmetries,which originates from the intertwined drumhead surface states of the CICE *** higher order topology is further demonstrated by the emergence of one-dimensional helical hinge states,indicating the discovery of a higher order topological insulator protected by a glide symmetry.

关键词： topological protected insulator

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Anti-amyloid antibodies in Alzheimer’s disease: what did clinical trials teach us?

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Neural Regeneration Research 2025年第4期20卷 1092-1093页

作者： Danko Jeremic lydia Jiménez-Díaz juan D.Navarro-lópez NeuroPhysiology&Behavior lab University of Castilla-La ManchaBiomedical Research Center(CRIB)School of Medicine of Ciudad RealCiudad RealSpain

Although many causes of Alzheimer’s disease(AD)may exist,both the original amyloid cascade and tau hypotheses posit that abnormal misfolding and accumulation of amyloid-β(Aβ)and tau protein is the central event causing the ***,that conclusion could be only partly true,and there is conflicting evidence about the role of both proteins in AD,being able to precede and influence one *** researchers argue that these proteins are mere executors rather than primary causes of ***,there have been continuing refinements of both hypotheses,with alternative explanations proposed.Aβand tau proteins may be independently involved in specific neurotoxic pathways;yet there may be other crucial processes going on in early ***,accumulating evidence suggests that Aβand tau act synergistically,rather than additively in disease onset(Jeremic et al.,2021,2023a).

关键词： amyloid Alzheimer additive

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An ultra-wideband circularly polarized microstrip patch antenna loaded with split-ring resonator

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Optoelectronics letters 2025年

作者： WANG Shike XIA Dan lü lianrong QIN juan WANG Meng REN Haiping School of Integrated Circuit Science and Engineering， Tianjin University of Technology

In this paper， the effect of a single-opening split-ring resonator （SRR） structure on the performance of ultra-wideband （UWB） microstrip patch antenna （MPA） is studied. Here a UWB MPA based on partial grounding is proposed， and the SRR structure is utilized to optimize other characteristics of the low-profile microstrip antenna while ensuring the bandwidth and gain remain unchanged. The proposed metamaterial structure， consisting of a 2 × 2 array of SRR， is loaded on the reverse side of the substrate. The volume of the proposed antenna is 61.6×67.6×1.5mm3. According to simulation and experimental results， the proposed microstrip antenna loaded with 2×2 SRRs performs better than that without SRR structure. It produces an operating band of 1.62 GHz-8 GHz while achieving circular polarization characteristics with an axial ratio （AR） bandwidth of 3.92 GHz-4.57 GHz. In addition， the performance of the proposed antenna is superior to relevant works of literature The antenna can be widely utilized in wireless communication systems.

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High prevalence of viable Mycobacterium avium subspecies paratuberculosis in Crohn's disease

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World Journal of Gastroenterology 2010年第36期16卷 4558-4563页

作者： juan l Mendoza Amparo San-Pedro esther Culebras Raquel Cíes Carlos Taxonera Raquel lana Elena Urcelay Fernando de la Torre juan J Picazo manuel Díaz-Rubio Department of Gastroenterology Hospital Clinico San Carlos28040 MadridSpain Department of Clinical Microbiology Hospital Clinico San Carlos28040 MadridSpain Department of Internal Medicine Hospital Clinico San Carlos28040 MadridSpain Department of Immunology Hospital Clinico San Carlos28040 MadridSpain

AIM:To examine the detection rate of viable Mycobacterium avium subspecies paratuberculosis(maP) in patients with inflammatory bowel disease [Crohn's disease(CD) and ulcerative colitis(UC)].METHODS:Thirty patients with CD(15 with at least one NOD2/CARD15 mutation),29 with UC,and 10 with no inflammatory bowel disease(IBD).were tested for maP by polymerase chain reaction(specific IS900 fragment) and blood ***:maP DNA was detected in all original blood samples and 8-wk blood cultures(CD,UC and non-IBD).Positive maP DNA status was confirmed by dot blot *** 69 cultures were negative by acid-fast Ziehl-Neelsen *** maP,in spheroplast form,was isolated from the 18-mo blood cultures of all 30 CD patients,one UC patient,and none of the non-IBD *** association was found between positive maP cultures and use of immunosuppressive drugs or CDassociated single nucleotide ***:maP is widely present in our area and maP DNA can be recovered from the blood of CD,UC and non-IBD ***,maP spheroplasts were only found in CD patients.

关键词： Mycobacterium avium subspecies paratuberculosis Crohn’s disease Ulcerative colitis Inflammatory bowel disease Polymerase chain reaction Genetic susceptibility

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Close-in weapon system planning based on multi-living agent theory

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Defence Technology（防务技术） 2022年第7期18卷 1219-1231页

作者： Tang Tang Yue Wang li-juan Jia Jin Hu Cheng ma School of Information and Electronic Beijing Institute of TechnologyBeijing100081China

The close-in weapon system(CIWS)is a combat system that faces a complex environment full of dynamic and unknown challenges,whose construction and planning require a systematic design *** agent(MlA)theory is a methodology for the combat system design,which uses the livelihood degree to evaluate the multi-dimensional long-term operational effectiveness of the system;whereas,there is still no uniform quantization framework for the livelihood degree,and the adjustment methods of livelihood degree need to be further *** this paper,we propose the uniform quantization framework for the livelihood degree and detailed discuss the methods of livelihood *** on the MlA theory,the multi-dimensional operational effectiveness of the missile-gun integrated weapon system(MGIWS)is analyzed,and the long-term combat effectiveness against the saturation attack is ***,the planning problem of the equipment deployment and configuration is *** objectives,including the overall livelihood degree and cost-effectiveness(CE),are proposed,and the optimization method based on genetic algorithm(GA)is studied for the planning problem.

关键词： Multi-living agent theory Close-in weapon system Effectiveness evaluation livelihood degree Queueing system Missile-gun integrated weapon system

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The fate of fertilizer N applied to cotton in relation to irrigation methods and N dosage in arid area

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Journal of Arid land 2012年第3期4卷 320-329页

作者： ChangZhou WEI TengFei ma Xiaojuan WANG juan WANG Key laboratory of Oasis Eco-Agriculture College of AgricultureShihezi UniversityShihezi 832003China

Quantitative information on the fate and efficiency of nitrogen （N） fertilizer applied to coarse textured calcareous soils in arid farming systems is scarce but, as systems intensify, is essential to support sustainable ag- ronomic management decisions. A mesh house study was undertaken to trace the fate of N fertilizer applied to cotton （Gossypium hirsutum l. cv., Huiyuan701） growing on a reconstructed profile （0-100 cm） of a calcareous （〉15% CaCQ） sandy loam soil. Two irrigation methods （drip irrigation, DI; and furrow irrigation, FI） and four N ap- plication rates （0, 240, 360 and 480 kg/hm2, abbreviated as No, N240, N360, and N480, respectively） were applied. 15N-labelled urea fertilizer was applied in a split application. DI enhanced the biomass of whole plant and all parts of the plant, except for root; more fertilizer N was taken up and mostly stored in vegetative parts; N utilization efficiency （NUE） was significantly greater than in FI. N utilization efficiency （NUE） decreased from 52.59% in N240 to 36.44% in N480. N residue in soil and plant N uptake increased with increased N dosage, but recovery rate decreased consis- tently both in DI and Fl. Plant N uptake and soil N residue were greater in DI than in FI. N residue mainly stayed within 0-40 cm depth in DI but within 40-80 cm depth in Ft. FI showed 17.89% of N leached out, but no N leaching occurred in DI. N recovery rate in the soil-plant system was 75.82% in DI, which was markedly greater than the 55.97% in FI. DI exhibited greater NUE, greater residual N in the soil profile and therefore greater N recovery rate than in FI; also, N distribution in soil profile shallowed in DI, resulting in a reduced risk of N leaching compared to FI; and enhanced shoot growth and reduced root growth in DI is beneficial for more economic yield formation. Com- pared to furrow irrigation, drip irrigation is an irrigation method where N movement favors the prevention of N from being lost in the plant-soil system and benef

关键词： drip irrigation furrow irrigation N application rate N utilization efficiency N recovery Gossypium hirsutum

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Quantifying the parameter dependent basin of the unsafe regime of asymmetric lévy-noise-induced critical transitions

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Applied mathematics and Mechanics(English Edition) 2021年第1期42卷 65-84页

作者： Jinzhong ma Yong XU Yongge lI Ruilan TIAN Shao juan ma J.KURTHS School of mathematical Sciences Shanxi UniversityTaiyuan 030000China Department of Applied mathematics Northwestern Polytechnical UniversityXi’an 710072China MIIT Key laboratory of Dynamics and Control of Complex Systems Northwestern Polytechnical UniversityXi’an 710072China Department of Engineering Mechanics Shijiazhuang Tiedao UniversityShijiazhuang 050043China School of mathematics&Information Science North Minzu UniversityYinchuan 750021China Potsdam Institute for Cl.mate Impact Research Potsdam 14412Germany Department of Physics Humboldt University at BerlinBerlin 12489Germany

In real systems,the unpredictable jump changes of the random environment can induce the critical transitions(CTs)between two non-adjacent states,which are more *** an asymmetric lévy-noise-induced tri-stable model with desirable,sub-desirable,and undesirable states as a prototype class of real systems,a prediction of the noise-induced CTs from the desirable state directly to the undesirable one is carried *** first calculate the region that the current state of the given model is absorbed into the undesirable state based on the escape probability,which is named as the absorbed ***,a new concept of the parameter dependent basin of the unsafe regime(PDBUR)under the asymmetric lévy noise is *** is an efficient tool for approximately quantifying the ranges of the parameters,where the noise-induced CTs from the desirable state directly to the undesirable one may *** importantly,it may provide theoretical guidance for us to adopt some measures to avert a noise-induced catastrophic CT.

关键词： tri-stable model asymmetric lévy noise critical transition(CT) escape probability absorbed region parameter dependent basin of unsafe regime(PDBUR)

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Tractable XMl data exchange via relations

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Frontiers of Computer Science 2012年第3期6卷 243-263页

作者： Rada CHIRKOVA leonid lIBKIN juan l. REUTTER Department of Computer Science North Carolina State University Raleigh NC 27606 USA School of Informatics University of Edinburgh Edinburgh EH8 9AB UK

We consider data exchange for XMl documents： given source and target schemas, a mapping between them, and a document conforming to the source schema, construct a target document and answer target queries in a way that is consistent with the source information. The problem has pri- marily been studied in the relational context, in which data- exchange systems have also been built. Since many XMl documents are stored in relations, it is natural to consider using a relational system for XMl data exchange. However, there is a complexity mismatch between query answering in relational and in XMl data exchange. This indicates that to make the use of relational systems pos- sible, restrictions have to be imposed on XMl schemas and mappings, as well as on XMl shredding schemes. We isolate a set of five requirements that must be ful- filled in order to have a faithful representation of the XMl data-exchange problem by a relational translation. We then demonstrate that these requirements naturally suggest the in- lining technique for data-exchange tasks. Our key contribu- tion is to provide shredding algorithms for schemas, docu- ments, mappings and queries, and demonstrate that they en- able us to correctly perform XMl data-exchange tasks using a relational system.

关键词： data exchange XMl XMl shredding inlining

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estimating distribution of water uptake with depth of winter wheat by hydrogen and oxygen stable isotopes under different irrigation depths

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Journal of Integrative Agriculture 2016年第4期15卷 891-906页

作者： GUO Fei ma juan-juan ZHENG li-jian SUN Xi-huan GUO Xiang-hong ZHANG Xue-lan College of Water Resource Science and Engineering Taiyuan University of TechnologyTaiyuan 030024P.R.China Shanxi Conservancy Technical College Yuncheng 044004P.R.China

Crop root system plays an important role in the water cycle of the soil-plant-atmosphere continuum. In this study, com- bined isotope techniques, root length density and root cell activity analysis were used to investigate the root water uptake mechanisms of winter wheat （Triticum aesfivum l.） under different irrigation depths in the North China Plain. Both direct inference approach and multisource linear mixing model were applied to estimate the distribution of water uptake with depth in six growing stages. Results showed that winter wheat under land surface irrigation treatment （Ts） mainly absorbed water from 10-20 cm soil layers in the wintering and green stages （66.9 and 72.0%, respectively）; 0-20 cm （57.0%） in the jointing stage; 0-40 （15.3%） and 80-180 cm （58.1%） in the heading stage; 60-80 （13.2%） and 180-220 cm （35.5%） in the filling stage; and 0-40 （46.8%） and 80-100 cm （31.0%） in the ripening stage. Winter wheat under whole soil layers irrigation treatment （Tw） absorbed more water from deep soil layer than Ts in heading, filling and ripening stages. Moreover, root cell activity and root length density of winter wheat under TW were significantly greater than that of Ts in the three stages. We concluded that distribution of water uptake with depth was affected by the availability of water sources, the root length density and root cell activity. Implementation of the whole soil layers irrigation method can affect root system distribution and thereby increase water use from deeper soil and enhance water use efficiency.

关键词： hydrogen and oxygen stable isotopes multisource linear mixing model winter wheat distribution of wateruptake with depth

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Activation of CFTR-mediated Cl^- Transport by Capsaicinoids in Cell Culture Model

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Chemical Research in Chinese Universities 2009年第2期25卷 220-223页

作者： ZHAO Xue-hang HOU Tmg-ting GE Hong SUN juan-juan YANG Hong ma Tong-hui Membrane Channel Research laboratory Northeast Normal University Changchun 130024 P. R. China liaoning Provincial Key laboratory of Biotechnology and Drug Discovery School of Life Sciences Liaoning Normal University Dalian 116029 P. R. China

Previous studies reported that capsaicin potentiates AF508 mutant cystic fibrosis transmembrane conductance regulator（CFTR） channel gating defect by transfected cell-based assays. It has been postulated that orally ingested capsaicin may conceptually be used to develop a therapeutic strategy to treat gastrointestinal disorders in CF patients. We tried to reproduce and extend those pre-clinical data of previous studies. Cell-based fluorescence func- tional measurements in Fischer thyroid epithelial cells（FRT） expressing CFTR showed no effect of capsaicin on potentiating AF508-CFTR, while genistein showed a strongly positive activity. Studies show that capsaicin and dihy- drocapsaicin activated cAMP-prestimulated wild-type CFTR in a dose-dependent manner with a maximal response of 70% of that activated by genistein, thus gave an apparent EC50 of （40.4±6.8）μmol/l and （150.2±7.4） μtmol/l respectively. Preliminary study shows that the binding sites for capsaicin and dihydrocapsaicin may be probably partially overlapped with that for genistein because the maximal activation of wild-type CFTR with genistein is partially blocked by caosaicin and dihydrocapsaicin.

关键词： Capsaicinoid Cystic fibrosis transmembrane conductance regulator(CFTR) Activation

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