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Semisymmetric graphs admitting primitive groups of degree 9p

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Science China Mathematics 2015年第12期58卷 2671-2682页

作者： han hua lu zaiping College of Science Tianjin University of Technology Center for Combinatorics LPMC-TJKLC Nankai University

Let Γ be a connected regular bipartite graph of order 18 p, where p is a prime. Assume that Γ admits a group acting primitively on one of the bipartition subsets of Γ. Then, in this paper, it is shown that eitherΓ is arc-transitive, or Γ is isomorphic to one of 17 semisymmetric graphs which are constructed from primitive groups of degree 9p.

关键词： edge-transitive graph arc-transitive graph semisymmetric graph primitive permutation group suborbit

On Locally Primitive Graphs of Order 18p

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Chinese Annals of Mathematics,Series B 2015年第6期36卷 919-936页

作者： hua han zaiping lu Center for Combinatorics LPMC-TJKLC Nankai University College of Science Tianjin University of Technology College of Science Tianjin University of Technology

The authors investigate locally order 18p. It is shown that such a graph the Gray graph and the Tutte 12-cage. primitive bipartite regular connected graphs of is either arc-transitive or isomorphic to one of

关键词： Locally primitive graph Arc-transitive graph Normal cover Quasiprimitive group

Lipomatous ependymoma with ZFTA:RELA fusion-positive:A case report

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World Journal of Clinical Cases 2025年第1期13卷 48-55页

作者： Xiao-Yu Zhao Juan-han Yu Yi-hua Wang Yi-Xin Liu lu Xu Lin Fu Ning Yi China Medical University The First Hospital of China Medical UniversityShenyang 110001Liaoning ProvinceChina Department of Pathology The First Hospital of China Medical UniversityShenyang 110001Liaoning ProvinceChina Anshan Cancer Hospital Anshan 114000Liaoning ProvinceChina

BACKGROUND Ependymoma with lipomatous differentiation is a rare type of *** ZFTA fusion-positive supratentorial ependymoma is a novel tumor type in the 2021 World Health Organization classification of central nervous system *** fusion-positive lipomatous ependymoma has not been reported to *** SUMMARY We reported a case of a 15-year-old Chinese male who had a sudden convulsion lasting approximately six *** resonance imaging showed a round cystic shadow of approximately 1.9 cm×1.5 cm×1.9 cm under the right parieto-occipital *** examination showed characteristic perivascular pseudorosettes and adipose differentiation in the ***-chemical staining showed that the tumor cells were negative for cytokeratin,NeuN,Syn and p53,but positive for GFAP,vimentin and S-100 ***-ficant punctate intracytoplasmic EMA immunoreactivity was *** level of Ki-67 was about 5%.Genetic analysis revealed ZFTA:RELA fusion.A cranio-tomy with total excision of the tumor was *** follow-up time was 36 months,no evidence of disease recurrence was found in magnetic resonance *** Based on these findings,the patient was diagnosed as a ependymoma with ZFTA fusion and lipomatous *** case report provides information on the microscopic morphological features of ependymoma with ZFTA fusion and lipomatous differentiation,which can help pathologists to make a definitive diagnosis of this tumor.

关键词： Ependymoma Lipomatous Molecular classification Supratentorial ZFTA:RELA fusion Case report

Breakdown of Landau Fermi liquid theory： Restrictions on the degrees of freedom of quantum electrons

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Frontiers of physics 2018年第2期13卷 119-137页

作者： Yue-hua Su han-Tao lu Department of Physics Yantai University Yantai 264005 China Center for Interdisciplinary Studies Lanzhou University Lanzhou 730000 China

One challenge in contemporary condensed matter physics is to understand unconventional electronic physics beyond the paradigm of Landau Fermi-liquid theory. Here, we present a perspective that posits that most such examples of unconventional electronic physics stem from restrictions on the degrees of freedom of quantum electrons in Landau Fermi liquids. Since the degrees of freedom are deeply connected to the system＇s symmetries and topology, these restrictions can thus be realized by external constraints or by interaction-driven processes via the following mechanisms：（i） symmetry breaking, （ii） new emergent symmetries, and （iii） nontrivial topology. Various examples of unconventionM elec- tronic physics beyond the reach of traditional Landau Fermi liquid theory are extensively investigated from this point of view. Our perspective yields basic pathways to study the breakdown of Landau Fermi liquids and also provides a guiding principle in the search for novel electronic systems and devices.

关键词： breakdown of the Landau Fermi liquids degrees of freedom symmetry topology

Synthesis of Silica Hollow Spheres with Diameter Around 50 nm by Anionic Surfactant

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Chemical Research in Chinese Universities 2012年第3期28卷 361-363页

作者： RAN hua han lu CHE Shun-ai State Key Laboratory of Composite Materials Thin Film and Microfabrication Technology of Ministry of EducationSchool of Chemistry and Chemical TechnologyShanghai Jiaotong UniversityShanghai 200240P.R.China

Silica hollow spheres（SHSs） have attracted great attention because of their low toxicity, low density, large surface area, high chemical and thermal stability, and surface permeability. They can be widely applied in storage^[l], catalysis^[2], drug deli- very^[3,4], low-dielectric-constant materials^[5], low-refractive materials^[6-8], and so on. Up to now, there have been various methods to produce SHSs. Inorganic^[9] or organic particles^[10], such as polystyrene or calcium carbonate, were used as hard templates to create hollow cavities, However, the multistep synthetic process and the lack of structural robustness of the shells upon template removal process weaken their applica- tion. Soft templates, including oil-in-water emulsions^[11,12], vesicles^[13], micelle^[14,15] and gas bubbles^[16], are applied widely.

关键词： Anionic surfactant Co-Structure directing agent(CSDA) Vesicle

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Mira Symbiotic Stars

Chinese Journal of Astronomy and Astrophysics 2007年第1期7卷 101-110页

作者： Guo-Liang lu Chun-hua Zhu Zhan-Wen han National Astronomical Observatories / Yunnan Observatory Chinese Academy of Sciences Kunming 650011 Department of Physics Xinjiang University Urumqi 830046

We have carried out a detailed study of Mira symbiotic stars by means of a population synthesis code. We estimate the number of Mira symbiotic stars in the Galaxy as 1700 - 3100 and the Galactic occurrence rate of Mira symbiotic novae as from -0.9 to 6.0 yr^-1, depending on the model assumptions. The distributions of the orbital periods, the masses of the components, mass-loss rates of cool components, mass-accretion rates of hot components and Mira pulsation periods in Mira symbiotic stars are simulated. By a comparison of the number ratio of Mira symbiotic stars to all symbiotic stars, we find the model with the stellar wind model of Winters et al. to be reasonable.

关键词： binaries symbiotic-Galaxy stellar content-stars Mira variables

Combined effects of sea urchin-like structure and mixed Cu^(+)/Cu^(0)states on promoting C_(2)formation in electrocatalytic CO_(2)reduction

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Frontiers of Chemical Science and Engineering 2024年第3期18卷 63-73页

作者： Mengqing Shan Dongsheng lu Jiatong Dong Shen Yan Jinyu han hua Wang Collaborative Innovation Center of Chemical Science and Engineering Key Laboratory for Green Chemical Technology of the Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin300354China

Surface engineering and Cu valence regulation are essential factors in improving the C_(2)selectivity during the electrochemical reduction of CO_(2).Herein,we present a sea urchin-like CuO/Cu_(2)O catalyst derived from rhombic dodecahedra Cu_(2)O through one-step oxidation/etching method where the mixed Cu^(+)/Cu^(0)states are formed via in situ reduction during *** combined effects of the morphology and the mixed Cu^(+)/Cu^(0)states on C–C coupling are evaluated by the Faradaic efficiency of C_(2)and the C_(2)/C1 ratio obtained in an H-cell.R-Cu^(O)/Cu_(2)O exhibited 49.5%Faradaic efficiency of C_(2)with a C_(2)/C1 ratio of 3.1 at−1.4 V *** hydrogen electrode,which are 1.5 and 3.2 times higher than those of R-Cu_(2)O,*** a flow-cell,68.0%Faradaic efficiency of C_(2)is achieved at a current density of 500 mA·cm^(−2).The formation of the mixed Cu^(+)/Cu^(0)states was confirmed by in situ Raman ***,the sea urchin-like structure provides more active sites and enables faster electron *** a result,the excellent C_(2)production on R-CuO/Cu_(2)O is primarily attributed to the synergistic effects of the sea urchin-like structure and the stable mixed Cu^(+)/Cu^(0)***,this work presents an integrated strategy for developing Cu-based electrocatalysts for C_(2)production through electrochemical CO_(2)reduction.

关键词： CO_(2)electrolysis sea urchin-like structure Cu^(+)/Cu^(0) C_(2)products

Expression of connective tissue growth factor in tumor tissues is an independent predictor of poor prognosis in patients with gastric cancer

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World Journal of Gastroenterology 2008年第13期14卷 2110-2114页

作者： lu-Ying Liu Yan-Chun han Shu-hua Wu Zeng-hua Lv Department of Pathology Binzhou Medical Collage Binzhou 256603 Shandong Province China Department of Pathology Affiliated Hospital of Binzhou Medical Collage Binzhou 256603 Shandong Province China

AIM: To examine the expression of connective tissue growth factor (CTGF), also known as CCN2, in gastric carcinoma (GC), and the correlation between the expression of CTGF, clinicopathologic features and clinical outcomes of patients with GC. METHODS: One hundred and twenty-two GC patients were included in the present study. All patients were followed up for at least 5 years. Proteins of CTGF were detected using the Powervision two-step immunostaining method. RESULTS: Of the specimens from 122 GC patients analyzed for CTGF expression, 58 (58/122, 47.5%) had a high CTGF expression in cytoplasm of gastric carcinoma cells and 64 (64/122, 52.5%) had a low CTGF expression. Patients with a high CTGF expression showed a higher incidence of lymph node metastasis than those with a low CTGF expression (P = 0.032). Patients with a high CTGF expression had significantly lower 5-year survival rate than those with a low CTGF expression (27.6% vs 46.9%, P = 0.0178), especially those staging Ⅰ+Ⅱ+Ⅲ (35.7% vs 65.2%, P = 0.0027). CONCluSION: GC patients with an elevated CTGF expression have more lymph node metastases and a shorter survival time. CTGF seems to be an independent prognostic factor for the successful differentiation of high-risk GC patients staging Ⅰ+Ⅱ+Ⅲ. Over-expression of CTGF in human GC cells results in an increased aggressive ability.

关键词： Connective tissue growth factor Gastric cancer Prognosis Lymph node metastasis

Enantioselective Total Synthesis of(+)-Propolisbenzofuran B

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Chinese Journal of Chemistry 2024年第22期42卷 2833-2839页

作者： Wen-Xiu Xu Li-han Zhao Yao Zhu Hai-hua lu Department of Chemistry Zhejiang University866 Yuhangtang RoadHangzhouZhejiang 310058China Key Laboratory of Precise Synthesis of Functional Molecules of zhejiang Province Department of Chemistry and Research Center for Industries oftheFutureWestlake University600 Dunyu RoadHangzhouZhejiang 310030China Institute of Natural Sciences Westlake Institute for Advanced Study18 Shilongshan RoadHangzhouZhejiang 310024China

Comprehensive Summary The first catalytic asymmetric total synthesis of(+)-propolisbenzofuran B,enabled by a highly enantioselective rhodium-catalyzed hydrogenation of a tetrasubstituted olefin,was *** noteworthy aspects include the construction of the central hydrodibenzo[b,d]furan core through a sequence of Zn(II)-mediated regioselective benzofuran formation and Dieckmann condensation,as well as C-H oxidations,involving a visible light-induced Fe(III)-catalyzed benzylic C(sp3)-H ***,the absolute configuration was confirmed by X-ray analysis of a carbonate intermediate.

关键词： Propolisbenzofuran B Total synthesis Enantioselective hydrogenation Photocatalysis C-H functionalization Natural products Alkenes Chirality