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Correlation-driven threefold topological phase transition in monolayer osBr_(2)

Frontiers of physics 2023年第3期18卷 121-130页

作者： san-Dong Guo Yu-Ling Tao Wen-Qi mu Bang-Gui Liu School of Electronic Engineering Xi’an University of Posts and TelecommunicationsXi’an 710121China Beijing national Laboratory for Condensed matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100190China

Spin–orbit coupling(SOC)combined with electronic correlation.can induce topological phase transition,producing novel electronic ***,we investigate the impact of SOC combined with correlation effects on physical properties of monolayer osBr_(2),based on first-principles calculations with generalized gradient approximation plus U(GGA+U)*** intrinsic out-of-plane magnetic anisotropy,osBr_(2)undergoes threefold topological phase transition with increasing U,and valleypolarized quantum anomalous Hall insulator(VQAHI)to half-valley-metal dxy dx2−y2 dz2¯6m2(HVm)to ferrovalley insulator(FVI)to HVm to VQAHI to HVm to FVI transitions can be *** topological phase transitions are connected with sign-reversible Berry curvature and band inversion between/and *** to symmetry,piezoelectric polarization of osBr_(2)is confined along the in-plane armchair direction,and only one d11 is *** a given material,the correlation strength should be fixed,and osBr_(2)may be a piezoelectric VQAHI(PVQAHI),piezoelectric HVm(PHVm)or piezoelectric FVI(PFVI).The valley polarization.can be flipped by reversing the magnetization of os atoms,and the ferrovalley(FV)and nontrivial topological properties will be suppressed by manipulating out-of-plane magnetization to in-plane *** considered reasonable U range,the estimated Curie temperatures all are higher than room *** findings provide a comprehensive understanding on possible electronic states of osBr_(2),and confirm that strong SOC combined with electronic correlation.can induce multiple quantum phase transition.

关键词： correlation SOC phase transition piezoelectricity

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Association of different central venous pressure levels with outcome of living-donor liver transplantation in children under 12 years

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World Journal of Pediatrics 2023年第2期19卷 170-179页

作者： Yi-Chen Fan Xiao-Qiang Wang Dan-Yan Zhu Xiao-Rong Huai Wei-Feng Yu Dian-san Su Zhi-Ying Pan Department of Anesthesiology Shanghai Jiaotong University School of Medicine Affiliated Renji HospitalNo.160 Pujian RoadPudong New DistrictShanghai200127China nursing Department Shanghai Jiaotong University School of Medicine Affiliated Renji HospitalNo.160 Pujian RoadShanghaiChina

Background Pediatric liver transplantation is an important modality for treating biliary *** overall survival(os)rate of pediatric liver transplantation has significantly improved compared with that of 20 years ago,but it is still *** anesthesia strategy of maintaining low central venous pressure(CVP)has shown a positive effect on prognosis in adult liver ***,this relationship remains unclear in pediatric liver ***,this study was conducted to review the data of pediatric living-donor liver transplantation to analyze the associations of different CVP levels with the prognosis of *** This was a retrospective study and the patients were divided into two groups according to CVP levels after abdominal closure:low CVP(LCVP)(≤10 cmH2O,n=470)and high CVP(HCVP)(>10 cmH2O,n=242).The primary outcome measured in the study was the overall survival *** secondary outcomes included the duration of mechan.cal ventilation in the intensive care unit(ICU),length of stay in the ICU,and postoperative stay in the *** demographic and perioperative data were collected and compared between the two ***-meier curves were constructed to determine the associations of different CVP levels with the survival *** In the study,712 patients,including 470 in the LCVP group and 242 in the HCVP group,were *** propensity score matching,212 pairs remained in the *** LCVP group showed a higher overall survival rate than the HCVP group in the Kaplan-meier curves and multivariate Cox regression analyses(P=0.018),and the HCVP group had a hazard ratio of 2.445(95%confidence interval,1.163–5.140).Conclusion This study confirmed that a low-CVP level at the end of surgery is associated with improved overall survival and a shorter length of hospital stay.

关键词： Central venous pressure General anesthesia Overall survival rate Pediatric living-donor liver transplantation Prognosis

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Levamisole-Adultered Cocaine: Vasoconstrictive and Vasculitis Effects Occurring Simultaneously

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case Reports in Clin.cal medicine 2022年第5期11卷 167-174页

作者： maría A. Rodríguez-santiago Hillarie Ríos-Torres Giulianni Oliveras-maldonado Valeria martinez-Lebrón Suheiry márquez-márquez Adianez santiago-santiago Salvador Vilá-Pérez marcel mesa-Pabón Department of Internal medicine School of Medicine University of Puerto Rico San Juan Puerto Rico

This case presents a rarely seen combination of two Cocaine-induced syndromes occurring simultaneously. Levamisole-adultered cocaine leads to Levamisole-induced Vasculitis (LIV), while cocaine’s vasoconstrictive effect causes destruction of the osteo-cartilaginous structures of nose called Cocaine-induced midline destructive lesions (CImDL). This case raises awareness of a new pattern of recognition in order to avoid misdiagnosis. We present a case of a 51-year-old male cocaine user who developed severe left-sided ear pain and yellowish secretions with circular necrotic lesions in the nose, right earlobe, and dorsum of feet bilaterally. An extensive workup to assess purpuric lesions’ etiology, including vasculitis, collagen vasculitides, anti-phospholipid syndrome, hypercoagulable state and infectious process, was performed and found negative. He developed bilateral tympanic membrane perforation and purpuric necrotic skin lesions, at the same time, due to CImDL and LIV, respectively. These two syndromes rarely present simultaneously in a patient. This case report exhibits a new Cocaine-induced clin.cal presentation that will help hospitalists recognize the disease and avoid misdiagnosis leading to unnecessary tests, prolonged hospitalization, and higher healthcare costs. Diagnosis is challenging, as it consists of establishing a temporal relationship between cocaine ingestion and symptoms’ onset. This disease usually has a benign progression because symptoms frequently resolve without intervention.

关键词： Levamisole-Induced Vasculitis Cocaine-Induced midline Destructive Lesions Cocaine’s Side Effect Spectrum

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丝裂霉素对经泪小管激光泪囊鼻腔造孔术的影响

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国际眼科杂志 2022年第3期22卷 363-365页

作者： Alberto Raposo miguelÁngel Rodríguez Alberto Guillén Jerónimo Lajara Francisco García-Purriños Los Arcos del mar menor大学医院耳鼻喉科西班牙穆尔西亚30739 morales meseguer医院耳鼻喉科西班牙穆尔西亚30008 Los Arcos医院眼科西班牙穆尔西亚30739 santa Lucia医院耳鼻喉科西班牙卡塔赫纳30202 圣安东尼奥天主教大学视觉科学院西班牙穆尔西亚30739 Los Arcos医院耳鼻喉科西班牙穆尔西亚30739

目的:探讨丝裂霉素对经泪小管激光泪囊鼻腔造孔术(TL-DCR)的疗效影响,并结合Pubmed数据库2011-2021年发表的相关文章来阐明丝裂霉素在TL-DCR手术中的作用。方法:回顾性分析2008-01/2019-07接受TL-DCR手术的120例患者病历资料,根据术中... 详细信息

目的:探讨丝裂霉素对经泪小管激光泪囊鼻腔造孔术(TL-DCR)的疗效影响,并结合Pubmed数据库2011-2021年发表的相关文章来阐明丝裂霉素在TL-DCR手术中的作用。方法:回顾性分析2008-01/2019-07接受TL-DCR手术的120例患者病历资料,根据术中是否使用丝裂霉素将患者分为丝裂霉素组和非丝裂霉素组。结果:丝裂霉素组的成功率为71.9%,非丝裂霉素组的成功率为71.0%。结论:两组患者手术成功率无明显差异。2011-2021年Pubmed数据库中关于丝裂霉素在TL-DCR手术中的作用的文章仅2篇,且研究结果相反,因此丝裂霉素在TL-DCR手术中的作用尚不明确。

关键词：激光经泪小管激光泪囊鼻腔造孔术丝裂霉素 Pubmed

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Biorefinery of Rice Husk to Obtain Functionalized Bioactive Compounds

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Journal of Renewable materials 2019年第4期7卷 313-324页

作者： m.Lopretti n.Lecot A.Rodriguez G.Lluberas F.Orozco L.Bolaños G.montes De Oca H.Cerecetto J.Vega-Baudrit Laboratorio de Técn.cas nucleares Aplicadas a Bioquímica y Biotecnología Centro de Investigaciones Nucleares-Facultad de CienciasMataojo 2055Montevideo CP 11400Uruguay Área de Radiofarmacia Centro de Investigaciones Nucleares-Facultad de CienciasMataojo 2055Montevideo CP 11400Uruguay Química Bioanalítica Instituto Polo Tecnológico de Pando-Facultad de QuímicaUdelaRBy Pass de Pando y Ruta 8Pando-Canelones CP 91000Uruguay Laboratorio de nacional de nanotecnología-CenAT-COnARE Costa Rica 1174-1200San JoséCP 10109Costa Rica Laboratorio de Polímeros POLIUNA-Escuela de Química Universidad NacionalHerediaSan JoséCP 86-3000Costa Rica

The biomass industrialization valorisation of grains and cereals is considered an opportunity for the countries where agro-industrial activity is one of its main economic activities,rendering new higher-value products with a concomitant solution to waste accumulation *** that end,in this work we describe and characterise bioactive compounds generation from rice husk by semisolid fermentation,obtained from 500 g of the material at room temperature and 60%humidity with mixed cultures of Phanerochaete chrysosporium and Gloeophyllum *** extract was evaluated in different situations:murine mammary tumour cells(4T1),normal cells(nIH 3T3)and in Lactobacillus acidophilus,and Trichoderma *** results exhibited that the extract inhibited 4T1 cells at concentrations higher than 20μg/mL,but did not inhibit normal cells,and displayed germicide activity after 3 days *** propose that these functionalized compounds have a potential application in industry/agriculture/medicine obtained from rice husk waste.

关键词： Biorefinery rice husk bioactive compounds valorisation of biomass veratryl alcohol

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Floral biology and pollination mechanisms of four mexico-endemic Fuchsia species with contrasting reproductive systems

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Journal of Plant Ecology 2018年第1期11卷 123-135页

作者： Clementina González Anai Alvarez-Baños Eduardo Cuevas COnACYT-Instituto de Investigaciones sobre los Recursos naturales Universidad Michoacana de San Nicolás de HidalgoAv.San Juanito Itzícuaro s/nCol.Nueva EsperanzaMorelia Michoacán 58330México Facultad de Biología Universidad Michoacana de San Nicolás de HidalgoAv.Francisco J.Mújica S/NCiudad UniversitariaMoreliaMichoacán 58030México Departamento de Biología Vegetal y Ecología Universidad de SevillaApartado 109541080 SevillaSpain

Aims The evolution of the outstanding variation of reproductive systems in angiosperms has been considered an important driver of line-age *** related hermaphroditic and dioecious species with biotic pollination provide the opportunity to study and compare traits related to pollinator attraction and their con-sequences on reproductive components.A higher predictability of pollination syndromes is expected in dioecious species,which are dependent on pollinators,than in self-compatible hermaphroditic *** species may suffer pollen limitation depending on the quality of floral rewards and the kind and abundance of pollina-tors,whereas no pollen limitation is expected in hermaphroditic spe-cies with autonomous ***,in the absence of pollen limitation,more or better seeds are expected in dioecious species,according to the sexual specialization *** In natural populations of the hermaphroditic Fuchsia fulgens and Fuchsia arborescens and dioecious Fuchsia parviflora and Fuchsia obcon.ca,all endemic to mexico,we first described flower phenol-ogy,flower production and longevity and nectar volume and ***,we evaluated the correspondence between floral visitors and pollination *** hermaphrodite plants,we determined the level of herkogamy and the potential for autonomous ***,we evaluated the effect of pollen limitation on fruit set and seed number and assessed seed germination for all *** Findings In contrast to our prediction,dioecious species did not show a higher correspondence between pollination syndromes and floral visitors than did hermaphrodites;however,male flowers exhib-ited a higher correspondence than female *** pollen limitation was detected in dioecious species,for which visitation rate did not differ between male and female *** her-maphroditic *** showed pollen limitation for seed number,despite the presence of auto

关键词： dioecy herkogamy hermaphroditism pollen limitation pollination syndromes

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Retinal microvascular and microstructural alterations in the diagnosis of meibomian gland dysfunction in severely obese population:a new approach

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International Journal of Ophthalmology(English edition) 2023年第12期16卷 1977-1985页

作者： Hai Huang Xiao-Yu Wang Hong Wei min Kang Jie Zou Qian Ling san-Hua Xu Hui Huang Xu Chen Yi-Xin Wang Yi Shao Yao Yu nanchang Aier Eye Hospital Nanchang 330006Jiangxi ProvinceChina Department of Endocrinology and metabolism the First Affiliated Hospital of Nanchang UniversityJiangxi Clinical Research Center for Endocrine and Metabolic DiseaseJiangxi Branch of National Clinical Research Center for Metabolic DiseaseNanchang 330006Jiangxi ProvinceChina The First Clin.cal medical College Nanchang UniversityNanchang 330006Jiangxi ProvinceChina Department of Ophthalmology Eye&ENT Hospital of Fudan UniversityShanghai 200433China Department of Ophthalmology the First Affiliated Hospital of Nanchang UniversityJiangxi Branch of National Clinical Research Center for Ocular DiseaseNanchang 330006Jiangxi ProvinceChina Department of Ophthalmology and Visual Sciences Maastricht UniversityMaastricht 6200MALimburg ProvinceNetherlands School of Optometry and Vision Sciences Cardiff UniversityCardiff CF244HQUnited Kingdom

AIm:To study retinal microvascular and microstructural alterations in meibomian gland dysfunction(mGD)in severely obese population using optical coherence tomography angiography(OCTA).mETHODS:Twelve mGD patients with severely obese population(PAT group;24 eyes)and 12 healthy controls(HC group;24 eyes)were *** images were segmented into five[superior(S),nasal(n),inferior(I),temporal(T),and central foveal(C)]or nine[inner superior(IS),outer superior(os),inner nasal(In),outer nasal(On),inner inferior(II),outer inferior(OI),inner temporal(IT),outer temporal(OT),and C]*** superficial vessel density(SVD),retinal thickness(RT),foveal avascular zone(FAZ)parameters,and retinal volume were ***:Visual acuity was significantly different between two groups(0.8±0.17 in PAT group vs 0.2±0.06 in HC group).SVD was significantly lower in PATs in n,T,os,In,OT,and *** area under the receiver operating characteristic curve(AUC)for T was 0.961[95% confidence interval(CI):0.908 to 1.000],for os was 0.962(95%CI:0.915 to 1.000).RT was significantly lower in PATs in IS,os,OI,OT,On,IT,In,and *** for OT was 0.935(95%CI:0.870 to 0.999),for IS was 0.915(95%CI:0.838 to 0.992).Angiography results showed significantly lower area and perimeter of FAZ,SVD of the inner retina and both retinal volume and the average volume thickness in the PAT ***:Vision may be affected in patients with mGD due to changes in retinal microvessels and *** changes detected by OCTA may be a potential marker for diagnosing mGD in severe obesity.

关键词： superficial vessel density retinal thickness severely obesity meibomian gland dysfunction optical coherence tomography angiography

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Tropical tree community composition and diversity variation along a volcanic elevation gradient

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Journal of mountain Science 2022年第12期19卷 3475-3486页

作者： Ruben mARTInEZ-camILO manuel mARTInEZ-mELEnDEZ nayely mARTInEZ-mIELEnDEZ Derio Antonio JImEnEZ-LOPEZ mauricio JosE-RIos Unidad Villa Corzo Facultad de IngenieríaUniversidad de Ciencias y Artes de Chiapas30520 Villa CorzoChiapasMexico Instituto de Ciencias Biológicas Universidad de Ciencias y Artes de Chiapas29039 Tuxtla GutiérrezChiapasMexico Eizia A.C. 29045 Tuxtla GutiérrezChiapasMexico Departamento de Conservación de la Biodiversidad El Colegio de la Frontera Sur29290 San Cristóbal de las CasasChiapasMexico Orquidiario y Jardín Botánico de Comitán Secretaría de Medio Ambiente e Historia Natural30106 Comitán de DomínguezChiapasMexico Instituto de Investigación en Gestión de Riesgos y cambio Climático Universidad de Ciencias y Artes de Chiapas29039 Tuxtla GutiérrezChiapasMexico

Unraveling the factors that determine variation of diversity in tropical mountain systems is a topic for debate in plant *** is especially true in areas where topography is complex due to volcano elevational gradients and where forests are vulnerable to human *** this study we used a set of climatic(temperature,rainfall,and radiation solar),topographic(elevation,slope aspect,and slope orientation)and human disturbance variables to determine their effect on diversity and composition patterns of a tree community,considering three slope aspects of a tropical volcano in southeastern *** sampled trees in seventy 0.1-ha plots distributed on three slope aspects of the Tacanávolcano along an elevational gradient of 1500 to 2500 *** determined diversity patterns(general tree richness,exponential of Shannon index,and pioneer species richness)with linear regression models,and for beta diversity,we used a dissimilarity index(within and between elevational bands 100 m wide).The effect of a set of environmental and human disturbance variables on tree diversity and community composition was analyzed with general linear models and multivariate analyses,*** registered 2,949 individual trees belonging to 176 species and *** average species richness and alpha diversity per plot were 13(standard deviation±6)and 9(±5),*** tree richness and alpha diversity increased in the middle part(unimodal patterns)of the elevational gradient,but pioneer species richness decreased linearly with *** variance explained by general linear models was greater in richness(32%)than in alpha diversity(25.3%).The most important predictor variables were temperature(elevational gradient),which explained the unimodal pattern(richness and alpha diversity increase at intermediate levels of temperature),and slope orientation,which explained the increase in richness and alpha diversity toward the geographic *** temperature had a signific

关键词： Composition Environmental gradient Tree diversity patterns Tropical humid cloud forest Tropical volcanoes

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Anatomical characterization of central, apical and minimal corneal thickness

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International Journal of Ophthalmology(English edition) 2014年第4期7卷 668-672页

作者： Federico Saenz-Frances martha Cecilia Bermúdez-Vallecilla Lara Borrego-sanz Luis Jaez J osé marìa martinez-de-la-casa Laura morales-Fernandez Enrique san.os-Bueso Julián Garcia-sanchez Julián Garcia-Feijoo Department of Ophthalmology Hospital Clínico San CarlosUniversidad Complutense de Madrid Instituto de Tecnologìa del Conocimiento Universidad Complutense de Madrid

·AIm: To anatomically locate the points of minimum corneal thickness and central corneal thickness(pupil center) in relation to the corneal apex.·mETHODS: Observational, cross-sectional study, 299 healthy volunteers. Thickness at the corneal apex(AT),minimum corneal thickness(mT) and corneal thickness at the pupil center(PT) were determined using the pentacam. Distances from the corneal apex to mT(mD)and PT(PD) were calculated and their quadrant position(taking the corneal apex as the reference) determined:point of minimum thickness(mC) and point of central thickness(PC) depending on the quadrant position. Two multivariate linear regression models were constructed to examine the influence of age, gender, power of the flattest and steepest corneal axes, position of the flattest axis, corneal volume(determined using the Pentacam)and PT on mD and PD. The effects of these variables on mC and PC were also determined in two multinomial regression models.·RESULTS: mT was located at a mean distance of 0.909 mm from the apex(79.4% in the inferior-temporal quadrant). PT was located at a mean distance of 0.156 mm from the apex. The linear regression model for mD indicated it was significantly influenced by corneal volume(B =-0.024; 95% CI:-0.043 to-0.004). no significant relations were identified in the linear regression model for PD or the multinomial logisticregressions for mC and PC.·COnCLUSIOn: mT was typically located at the inferiortemporal quadrant of the cornea and its distance to the corneal apex tended to decrease with the increment of corneal volume.

关键词： cornealthickness anatomy glaucoma

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Isotropic compression behavior of granular assembly with non-spherical particles by X-ray micro-computed tomography and discrete element modeling

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Journal of Rock mechanics and Geotechn.cal Engineering 2021年第5期13卷 972-984页

作者： nan Zhang Ahmadreza Hedayat Shaoyang Han Runlin Yang Héctor Gelber Bolaños Sosa Juan JoséGonzález Cárdenas Guido Edgard SalasÁlvarez Department of Civil and Environmental Engineering Colorado School of Mines1500 Illinois St.GoldenCO80401USA Key Laboratory of ministry of Education for Geomechanics and Embankment Engineering Hohai UniversityNanjing210098China School of Civil and Resource Engineering University of Science and Technology BeijingBeijing100083China Universidad nacional de san Agustín de Arequipa ArequipaPeru

The particle morphological properties,such as sphericity,concavity and convexity,of a granular assembly significantly affect its macroscopic and microscopic compressive behaviors under isotropic loading ***,limited studies on investigating the microscopic behavior of the granular assembly with real particle shapes under isotropic compression were *** this study,X-ray computed tomography(mCT)and discrete element modeling(DEm)were utilized to investigate isotropic compression behavior of the granular assembly with regard to the particle morphological properties,such as particle sphericity,concavity and interparticle *** mCT was first used to extract the particle morphological parameters and then the DEm was utilized to numerically investigate the influences of the particle morphological properties on the isotropic compression *** image reconstruction from mCT images indicated that the presented particle quantification algorithm was robust,and the presented microscopic analysis via the DEm simulation demonstrated that the particle surface concavity significantly affected the isotropic compression *** observations of the particle connectivity and local void ratio distribution also provided insights into the granular assembly under isotropic *** found that the particle concavity and interparticle friction influenced the most of the isotropic compression behavior of the granular assemblies.

关键词： X-ray computed tomography(mCT) Discrete element modeling(DEm) Isotropic compression Particle surface curvature Particle morphology

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