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Structure-Spin-Transport Anomaly in Quasi-One-Dimensional Ba9Fe3Te15 under High Pressure

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Chinese Physics Letters 2020年第8期37卷 101-107页

作者： Jun Zhang Mei-Ling Jin Xiang Li Xian-Cheng Wang Jian-Fa Zhao Ying Liu Lei Duan Wen-min Li Li-Peng Cao Bi-Juan Chen Li-Juan Wang Fei Sun Yong-Gang Wang Liu-Xiang Yang Yu-ming Xiao Zheng Deng shao-min feng Chang-Qing Jin Jin-Long Zhu Center for High Pressure Science&Technology Advanced Research Beijing 100094China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China School of Physics University of Chinese Academy of SciencesBeijing 100190China Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement(ministry of Education) School of PhysicsBeijing Institute of TechnologyBeijing 100081China Xi'an Modern Chemistry Research Institute Xi'an 710065China High Pressure Collaborative Access Team(HPCAT) Advanced Photon SourceArgonne National LaboratoryArgonneIllinois 60439USA Songshan Lake Materials Laboratory Dongguan 523808China Department of Physics Southern University of Science and TechnologyShenzhen 518055China

Recently,a series of novel compounds Ba3MX5(M=Fe,Ti,V;X=Se,Te)with hexagonal crystal structures composed of quasi-1-dimensional(1D)magnetic chains has been synthesized by our research team using high-pressure and high-temperature *** initial hexagonal phases persist to the maximum achievable pressure,while spin configurations and magnetic interactions may change dramatically as a result of considerable reductions in interchain separations upon *** compounds therefore offer unique possibilities for studying the evolution of intrinsic electronic structures in quasi-1D magnetic *** we present a systematic investigation of Ba9Fe3Te15,in which the interchain separations between trimerized 1D chains(~10.2Å)can be effectively modulated by external high *** crystal structure especially along the 1D chains exhibits an abnormal expansion at^GPa,which accompanies trimerization entangled anomalous mixed-high-low spin *** insulator-metal transition has been observed under high pressure as a result of charge-transfer gap ***-induced superconductivity emerges at 26 GPa,where the charge-transfer gap fully closes,3D electronic configuration forms and local spin fully collapses.

关键词： transition. hexagonal chains

霉酚酸酯对糖尿病肾病大鼠肾足细胞损伤的保护作用及其机制研究

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中国临床药理学杂志 2018年第24期34卷 2829-2831页

作者：阎磊朱清邵凤民郑州大学人民医院河南省人民医院肾内科郑州450003

目的研究霉酚酸酯(MMF)对糖尿病肾病(DN)大鼠肾足细胞损伤的保护作用及其机制。方法用腹腔注射链脲佐菌素联合高脂饮食喂养建立DN大鼠模型。根据血糖值将大鼠随机分为模型组和实验组;另取正常大鼠作为正常组,每组10只。实验组灌胃MMF 15... 详细信息

目的研究霉酚酸酯(MMF)对糖尿病肾病(DN)大鼠肾足细胞损伤的保护作用及其机制。方法用腹腔注射链脲佐菌素联合高脂饮食喂养建立DN大鼠模型。根据血糖值将大鼠随机分为模型组和实验组;另取正常大鼠作为正常组,每组10只。实验组灌胃MMF 15 mg·kg^(-1),正常组和模型组给予等剂量0. 9%Na Cl,持续给药8周。检测大鼠血糖与尿肌酸酐,用免疫印迹法检测大鼠肾组织足细胞裂孔膜蛋白(Nephrin)与Bcl-2相关的X蛋白(Bax)的表达水平。结果正常组、模型组和实验组大鼠血糖值分别为(5. 0±0. 4),(26. 8±3. 2),(21. 7±2. 6) mmol·L^(-1),组间两两比较差异有统计学意义(P <0. 05);这3组的尿肌酸酐含量分别为(7218. 9±1471. 4),(2280. 7±469. 1)和(4031. 4±641. 7)μmol·L^(-1),组间两两比较差异有统计学意义(均P <0. 01);这3组的Nephrin相对表达量分别为2. 81±0. 70,0. 48±0. 21和2. 14±0. 45;这3组的Bax相对表达量分别为0. 21±0. 06,1. 71±0. 56和0. 63±0. 32,组间两两比较差异均有统计学意义(均P <0. 01)。结论 MMF能通过上调Nephrin、同时抑制凋亡蛋白的表达,从而保护DN大鼠肾足细胞损伤。

关键词：霉酚酸酯糖尿病肾病足细胞凋亡

Structural stability at high pressure, electronic, and magnetic properties of BaFZnAs：A new candidate of host material of diluted magnetic semiconductors

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Chinese Physics B 2016年第7期25卷 71-75页

作者：陈碧娟邓正望贤成冯少敏袁真张思佳刘清青靳常青 Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China Collaborative Innovation Center of Quantum Matter Beijing 100190 China

The layered semiconductor BaFZnAs with the tetragonal ZrCuSiAs-type structure has been successfully *** the in-situ high-pressure synchrotron x-ray diffraction and the high-pressure Raman scattering measurements demonstrate that the structure of BaFZnAs is stable under pressure up to 17.5 GPa at room temperature. The resistivity and the magnetic susceptibility data show that BaFZnAs is a non-magnetic semiconductor. BaFZnAs is recommended as a candidate of the host material of diluted magnetic semiconductor.

关键词： diluted magnetic semiconductor ZrCuSiAs-type structure high pressure

铸瓷贴面和烤瓷全冠在口腔美容修复中的效果比较

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医学信息 2018年第8期31卷 112-113页

作者：邵敏锋广州市番禺区中心医院口腔科

目的对比铸瓷贴面和烤瓷全冠在口腔美容修复中的效果。方法选取2013年1月;017年9月于我院治疗的124例有活髓牙牙体缺损患者为主要研究对象,随机进行分组,对照组73例用钴铬烤瓷全冠修复,观察组51例用e-max铸瓷贴面修复,对两组患者满意度... 详细信息

目的对比铸瓷贴面和烤瓷全冠在口腔美容修复中的效果。方法选取2013年1月;017年9月于我院治疗的124例有活髓牙牙体缺损患者为主要研究对象,随机进行分组,对照组73例用钴铬烤瓷全冠修复,观察组51例用e-max铸瓷贴面修复,对两组患者满意度,并发症等对比分析。结果观察组患者的美容满意度为96.08%,对照组患者的满意度为80.82%,两组差异对比,有统计学意义（P<0.05）;观察组随访期间的并发症发生率为7.84%,对照组的并发症发生率为17.81%,两组差异对比,有统计学意义（P<0.05）。结论在口腔美容的修复治疗上,铸瓷贴面的修复效果优于烤瓷全冠,可有效提高牙齿的美观度,且并发症发生率低,长期治疗效果颇为理想。

关键词：铸瓷贴面烤瓷全冠口腔美容修复

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尿肠球菌尿路感染流行病学及临床特征分析

中国病原生物学杂志 2017年第10期12卷 1000-1002,1006页

作者：阎磊朱清邵凤民郑州大学人民医院河南省人民医院肾内科河南郑州450003

目的研究尿路感染患者携带尿肠球菌流行病学及临床特征,为尿路感染的诊治提供指导。方法收集206例尿路感染患者临床送检尿液标本,分离尿肠球菌,同一患者剔除重复株。采用VITEK32细菌检测分析仪检测菌落,并采用API板条鉴定菌种。药敏试... 详细信息

目的研究尿路感染患者携带尿肠球菌流行病学及临床特征,为尿路感染的诊治提供指导。方法收集206例尿路感染患者临床送检尿液标本,分离尿肠球菌,同一患者剔除重复株。采用VITEK32细菌检测分析仪检测菌落,并采用API板条鉴定菌种。药敏试验采用K-B法,结果判定参照CLSI2016版。采用SPSS20.0软件对数据进行统计学分析。结果检出49例尿肠球菌感染者,≤44岁感染者12例,感染率18.46%;45~岁感染者17例,感染率24.64%;≥60岁感染者20例,感染率27.78%。≤44岁和>44岁患者感染率差异无统计学意义(χ2=1.4853,P>0.05);<60岁和≥60岁患者感染率差异有统计学意义(χ2=0.9727,P<0.05)。男性患者19例,感染率17.12%(19/111);女性患者30例,感染率31.58%(30/95);男、女患者感染率差异无统计学意义(χ2=5.9056,P<0.05)。临床表现以怕冷、发热、腰痛等全身症状为主,且无症状性菌尿、尿路刺激、全身症状的患者分别有14、9和22例,感染率28.57%、18.37%和44.90%。实验室检查中,白细胞、血沉、C反应蛋白、降钙素原、IgG、C3、肌酐值、胱蛋白酶抑制剂C、N-乙酰-β-D氨基葡萄糖苷酶、β2-微球蛋白、微量白蛋白以及内毒素异常患者分别为24、9、8、3、7、8、7、8、28、22、29和20例,分别占48.97%、18.37%、16.33%、6.12%、14.29%、16.33%、14.29%、16.33%、57.14%、44.90%、59.18%和40.82%。49株尿肠球菌对诺氟沙星、庆大霉素、利福平、利奈唑胺、万古霉素、替考拉宁的耐药率分别为61.22%、48.98%、32.65%、16.33%、0.00%和0.00%。结论尿肠球菌尿路感染以老年患者常见,女性患者高发,临床表现以全身症状为主,实验室检查以微量白蛋白和白细胞指标异常为主要特征。尿肠球菌尿路感染治疗可合理使用万古霉素和替考拉宁。

关键词：尿路感染尿肠球菌临床特征耐药性

Superconductivity of topological matters induced via pressure

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Frontiers of physics 2012年第2期7卷 193-199页

作者： Jun-liang Zhang (1) (2) Si-jia Zhang (1) Hong-ming Weng (1) Wei Zhang (1) Liu-xiang Yang (1) Qing-qing Liu (1) Pan-pan Kong (1) Jie Zhu (1) shao-min feng (1) Xian-cheng Wang (1) Ri-cheng Yu (1) Lie-zhao Cao (2) Shoucheng Zhang (3) (4) Xi Dai (1) Zhong Fang (1) Chang-qing Jin (1) 1. Beijing National Laboratory for Condensed Matter Physics & Institute of Physics Chinese Academy of Sciences Beijing 100190 China2. Department of Physics University of Science & Technology of China Hefei 230026 China3. Department of Physics McCullough Building Stanford University Stanford CA 94305-4045 USA4. Center for Advanced Study Tsinghua University Beijing 100084 China

By applying pressure on the topological insulator Bi2Te3 single crystal, superconducting phase was found without a crystal structure phase transition. The new superconducting phase is under the pressure range of 3 GPa to 6 GPa. The high pressure Hall effect measurements indicated that the superconductivity caused by bulk hole pockets. The high pressure structure investigations with synchrotron X-ray diffraction indicated that the superconducting phase is of similar structure to that of ambient phase structure with only slight change with lattice parameter and internal atomic position. The topological band structures indicate the superconducting phase under high pressure remained topologically nontrivial. The results suggested that topological superconductivity can be realized in Bi2Te3 due to the proximity effect between superconducting bulk states and Dirac- type surface states. We also discussed the possibility that the bulk state could be a topological superconductor.

关键词： topological insulator high pressure

咪唑立宾对急性Thy1肾炎大鼠系膜细胞YB-1的影响

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中国免疫学杂志 2013年第5期29卷 511-513,517页

作者：秦福芳孙倩邵凤民南方医科大学附属郑州人民医院特需科郑州450003 河南省人民医院肾内科郑州450003

目的:观察Y-盒结合蛋白-1(YB-1)在急性Thy1肾炎大鼠系膜细胞增殖中的变化,研究咪唑立宾(MZ)对系膜细胞YB-1的影响。方法:108只雄性SD大鼠随机分为3组:正常组(A组)、肾炎组(B组)及咪唑立宾治疗组(C组)。诱导肾脏疾病后第1、3、5、7天,取... 详细信息

目的:观察Y-盒结合蛋白-1(YB-1)在急性Thy1肾炎大鼠系膜细胞增殖中的变化,研究咪唑立宾(MZ)对系膜细胞YB-1的影响。方法:108只雄性SD大鼠随机分为3组:正常组(A组)、肾炎组(B组)及咪唑立宾治疗组(C组)。诱导肾脏疾病后第1、3、5、7天,取肾脏组织。PAS染色观察肾脏病理变化;系膜细胞计数评估系膜细胞增殖;逆转录PCR(RT-PCR)方法检测YB-1基因表达水平;免疫印迹法(Western blot)检测YB-1的蛋白表达水平。结果:与正常组比较,肾炎组系膜细胞大量增殖,YB-1的mRNA及蛋白质水平高度表达(P<0.05)。与肾炎组比较,咪唑立宾组系膜细胞增殖程度减轻,YB-1的mRNA及蛋白质的表达显著下降(P<0.05)。结论:YB-1与肾小球系膜细胞增殖成正相关;咪唑立宾能够下调YB-1的基因和蛋白表达水平;咪唑立宾抑制急性Thy1肾炎大鼠系膜细胞增殖可能是通过下调YB-1的基因和蛋白质表达水平实现的。

关键词：咪唑立宾 Thy1肾炎系膜细胞 Y-盒结合蛋白-1

姜黄素对MRL/lpr狼疮性肾炎小鼠的作用及机制研究

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中国病理生理杂志 2020年第9期36卷 1647-1652页

作者：刘谓戴晖安乐美阎磊邵凤民河南省人民医院/郑州大学人民医院风湿免疫科河南郑州450003 新疆哈密红星医院肾内科新疆哈密839000 河南省人民医院/郑州大学人民医院肾内科河南郑州450003

目的:观察姜黄素(Cur)对狼疮性肾炎(LN)的作用及其可能的机制。方法:将30只10周龄的MRL/Lpr狼疮小鼠随机分为MRL/lpr组及Cur低、高剂量组(Cur-L和Cur-H组),对照组(NC组)为C57BL/6小鼠,每组10只。Cur-L组和Cur-H组分别给予100和200 mg/kg... 详细信息

目的:观察姜黄素(Cur)对狼疮性肾炎(LN)的作用及其可能的机制。方法:将30只10周龄的MRL/Lpr狼疮小鼠随机分为MRL/lpr组及Cur低、高剂量组(Cur-L和Cur-H组),对照组(NC组)为C57BL/6小鼠,每组10只。Cur-L组和Cur-H组分别给予100和200 mg/kg Cur灌胃处理,NC组和MRL/lpr组灌胃等体积的生理盐水,每天1次,连续12周。检测各组小鼠的尿蛋白变化,给药结束后HE染色观察肾组织形态学变化;检测血清肌酐(SCr)、血尿素氮(BUN)和血清抗双链DNA(dsDNA)水平,以及血清和肾组织中白细胞介素1β(IL-1β)、IL-6和肿瘤坏死因子α(TNF-α)水平;Western blot检测肾组织中p-IκB、NF-κB、NLRP3和caspase-1的蛋白水平。结果:与MRL/lpr组比较,Cur组处理后小鼠尿蛋白含量显著降低,肾损伤有一定缓解,SCr、BUN及血清抗dsDNA水平显著降低,血清和肾脏中IL-1β、IL-6及TNF-α水平显著降低,肾组织中p-IκB、NF-κB、NLRP3和caspase-1的蛋白水平也显著低于MRL/lpr组(P<0.05)。结论:Cur对MRL/lpr小鼠肾脏具有一定保护作用,其机制可能与抑制NF-κB和NLRP3通路有关。

关键词：姜黄素狼疮性肾炎 NF-κB信号通路 NLRP3信号通路炎症

Alkaline leaching mechanism of MSWI bottom ash: the pivotal role of Si(Al) chemical bonding environments

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Science China Technological Sciences 2025年

作者： Ningning shao Zekun JIAO Weipeng feng Yu JIN Fanlong KONG Zhijun DONG Zuotai ZHANG Institute of Technology for Marine Civil Engineering Shenzhen Institute of Information Technology (SZIIT) Guizhou NASH Ecological Technology Co. LTD School of Environmental Science and Engineering Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City Southern University of Science and Technology (SUSTech)

Municipal solid waste incineration bottom ash(MSWIBA) is a complex assemblage of aluminosilicate materials encompassing diverse solid wastes. Thus, its complexity poses great challenges to their resource utilization. For the sake of the alkali activation use of MSWIBA, this work focused on the characterizations and alkaline leaching experiments of various classified MSWIBA after sorting. Among the different categories of MSWIBA, waste glass(BA-G) and other unidentified slags(BA-O) were identified as potential precursors for alkali activation use. The alkaline leaching experiments proved that alkaline concentration, reaction temperature, reaction time, and raw material classification influenced the leaching process and results. Among these, the Si/Al chemical bonding environments from the material type played a pivotal role. When the materials had Qn(n>2) as the primary bonding structure, steric hindrance by the chain frameworks affected the alkali dissolution process, resulting in gradual disintegration from the outer layers inward. For the materials dominated by Q1frameworks, OH-could penetrate the frameworks, leading to their rapid depolymerization and outward dissolution. Overall, the Si/Al bonding environment played a crucial role in alkaline dissolution, providing theoretical guidance for classifying the alkali-activation utilization of MSWIBA and other aluminosilicate solid wastes.

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