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| 1 | Superconductivity at 36 K in gadolinium-arsenide oxides GdO_(1-x)F_xFeAs显示文摘In this paper we report the fabrication and superconducting properties of GdO1-xFxFeAs. It was found that when x is equal to 0.17, GdO0.83F0.17FeAs is a su-perconductor with the onset transition temperature Tcon ≈ 36.6 K. Resistivity anomaly near 130 K was observed for all samples up to x = 0.17, and such a phenomenon is similar to that of LaO1-xFxFeAs. Hall coefficient indicates that GdO1-xFxFeAs is conducted by electron-like charge carriers. | CHENG Peng, FANG Lei, YANG Huan, ZHU XiYu, MU Gang, LUO HuiQian, WANG ZhaoSheng & WEN HaiHu National Laboratory for Superconductivity, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China | 2008 | Science China(Physics,Mechanics & Astronomy)2008,51,6: | 6 |
| 2 | Exosome miRNAs profiling in serum and prognostic evaluation in patients with multiple myeloma显示文摘MicroRNAs(MiRNAs)carried by exosomes play pivotal roles in the crosstalk between cell components in the tumor microenvironment.Our study aimed at identifying the expression profile of exosomal miRNAs(exo-miRNAs)in the serum of multiple myeloma(MM)patients and investigating the regulation networks and their potential functions by integrated bioinformatics analysis.Exosomes in serum from 19 newly diagnosed MM patients and 9 healthy donors were isolated and the miRNA profile was investigated by small RNA sequencing.Differential expression of exo-miRNAs was calculated and target genes of miRNAs were predicted.CytoHubba was applied to identify the hub miRNAs and core target genes.The LASSO Cox regression model was used to develop the prognostic model,and the ESTIMATE immune score was calculated to investigate the correlation between the model and immune status in MM patients.The top six hub differentially expressed serum exo-miRNAs were identified.513 target genes of the six hub exo-miRNAs were confirmed to be differentially expressed in MM cells in the Zhan Myeloma microarray dataset.Functional enrichment analysis indicated that these target genes were mainly involved in mRNA splicing,cellular response to stress,and deubiquitination.13 core exo-miRNA target genes were applied to create a novel prognostic signature to provide risk stratification for MM patients,which is associated with the immune microenvironment of MM patients.Our study comprehensively investigated the exo-miRNA profiles in MM patients.A novel prognostic signature was constructed to facilitate the risk stratification of MM patients with distinct outcomes. | Teng Fang Hao Sun Xiyue Sun Yi He Peixia Tang Lixin Gong Zhen Yu Lanting Liu Shiyi Xie Tingyu Wang Zhenshu Xu Shuhua Yi Gang An Yan Xu Guoqing Zhu Lugui Qiu Mu Hao | 2023 | Blood Science2023,5,3: | 0 |
| 3 | Superconductivity in Ti-doped iron-arsenide compound Sr_4Cr_(0.8)Ti_(1.2)O_6Fe_2As_2显示文摘Superconductivity was achieved in Ti-doped iron-arsenide compound Sr4Cr0.8Ti1.2O6Fe2As2 (abbreviated as Cr-FeAs-42622). The X-ray diffraction measurement shows that this material has a layered structure with the space group of P4/nmm,and with the lattice constants a = b = 3.9003 and c = 15.8376 . Clear diamagnetic signals in ac susceptibility data and zero-resistance in resistivity data were detected at about 6 K,confirming the occurrence of bulk superconductivity. Meanwhile we observed a supercon-ducting transition in the resistive data with the onset transition temperature at 29.2 K,which may be induced by the nonuniform distribution of the Cr/Ti content in the FeAs-42622 phase. | ZHU XiYu,HAN Fei,MU Gang,CHENG Peng,SHEN Bing,ZENG Bin & WEN HaiHu National Laboratory for Superconductivity,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China Beijing Na-tional Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China | 2009 | Science China(Physics,Mechanics & Astronomy)2009,52,12: | 0 |
| 4 | Structural and transport properties of Sr_2VO_(3-δ)FeAs superconductors with different oxygen deficiencies显示文摘Sr2VO3-δFeAs superconductors with different oxygen deficiencies have been successfully fabricated.It is found that the superconducting transition temperature drops down monotonically with the increase of nominal oxygen deficiency.The diminishing of superconductivity is accompanied by the enhancement of residual resistivity,indicating an anomalous scattering effect induced by the oxygen deficiency.The highest superconducting transition temperature at about 36 K is achieved near the stoichiometrical sample Sr2VO2.9FeAs.The Hall effect measurements reveal that the density of charge carriers(electron-like here) varies qualitatively with the increase of nominal oxygen deficiency.Magnetotransport measurements show that the superconducting transition changes from one-step-like shape at low fields to two-step-like one at high fields,indicating an enhanced vortex motion due to the high anisotropy. | HAN Fei,ZHU XiYu,MU Gang,CHENG Peng,SHEN Bing,ZENG Bin & WEN HaiHu* National Laboratory for Superconductivity,Institute of Physics and Beijing National Laboratory for Condensed Matter Physics,Chinese Academy of Sciences,Beijing 100190,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010,53,7: | 0 |
| 5 | Comparative Genomics Reveals Evolutionary Drivers of Sessile Life and Left-right Shell Asymmetry in Bivalves显示文摘Bivalves are species-rich mollusks with prominent protective roles in coastal ecosystems.Across these ancient lineages,colony-founding larvae anchor themselves either by byssus production or by cemented attachment.The latter mode of sessile life is strongly molded by left-right shell asymmetry during larval development of Ostreoida oysters such as Crassostrea hongkongensis.Here,we sequenced the genome of C.hongkongensis in high resolution and compared it to reference bivalve genomes to unveil genomic determinants driving cemented attachment and shell asymmetry.Importantly,loss of the homeobox gene Antennapedia(Antp)and broad expansion of lineagespecific extracellular gene families are implicated in a shift from byssal to cemented attachment in bivalves.Comparative transcriptomic analysis shows a conspicuous divergence between leftright asymmetrical C.hongkongensis and symmetrical Pinctada fucata in their expression profiles.Especially,a couple of orthologous transcription factor genes and lineage-specific shell-related gene families including that encoding tyrosinases are elevated,and may cooperatively govern asymmetrical shell formation in Ostreoida oysters. | Yang Zhang Fan Mao Shu Xiao Haiyan Yu Zhiming Xiang Fei Xu Jun Li Lili Wang Yuanyan Xiong Mengqiu Chen Yongbo Bao Yuewen Deng Quan Huo Lvping Zhang Wenguang Liu Xuming Li Haitao Ma Yuehuan Zhang Xiyu Mu Min Liu Hongkun Zheng Nai-Kei Wong Ziniu Yu | 2022 | Genomics, Proteomics & Bioinformatics2022,20,6: | 0 |