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bet装置实现无汞操作

石油炼制与化工 1977年第3期 82-82页

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MIRATAINE　bet－C－30椰油酰胺丙基甜菜碱

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日用化学品科学 1996年第6期 34-34页

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重量法无汞bet研制成功

石油化工 1982年第11期 762-762页

作者：商连弟陈宝森别含熙张家华化工部天津化工研究院

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化工部天津化工研究院研制成功的重量法bet装置不使用水银,避免了操作人员的慢性汞中毒。并且仪器装置较为简化,记录直观,操作简便。对原静态重量法bet进行了下列几方面的改进 (1)原静态重量法bet采用水银压差法测定吸附质的蒸汽压。改进后的重量法无汞bet装置将吸附质的蒸汽压转变成电讯号,通过自动平衡记录仪将电讯号放大、记录。用改进前后的bet测定比表面积,数据对比如下表

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DUB3通过去泛素化BRD4促进bet抑制剂抗性和癌症进展

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科学新闻 2019年第2期 94-94页

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推荐一种bet容量法中测定死体积的新方法

大学化学 1988年第5期 64-64页

作者：谢式南王俊鹤山东海洋学院化学系

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碳化法制备高比表面积纳米白炭黑的工艺条件研究

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应用化工 2024年第4期53卷 853-857页

作者：张少奇杨保俊王琦王朋辉王百年合肥工业大学化学与化工学院

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Plasma betatrophin levels in patients with liver cirrhosis

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World Journal of Gastroenterology 2015年第37期21卷 10662-10668页

作者： Maria Teresa Arias-Loste Maria Teresa García-Unzueta Susana Llerena Paula Iruzubieta Angela Puente Joaquín Cabezas Carmen Alonso Antonio Cuadrado José Antonio Amado Javier Crespo Emilio Fábrega Gastroenterology and Hepatology Unit Marqués de Valdecilla University HospitalInstituto de Investigación Sanitaria ValdecillaAvenida Valdecilla s/n 39008 Santander Cantabria Spain Endocrinology Unit Marqués de Valdecilla University HospitalInstituto de Investigación Sanitaria Valdecilla Avenida Valdecilla s/n 39008 Santander Cantabria Spain

AIM: To investigate the plasma levels of betatrophin in patients with ***: Forty patients diagnosed at the clinic with liver cirrhosis according to biological, ultrasonographic,or histological criteria were *** severity of cirrhosis was classified according to Pugh's modification of Child's classification and MELD score. Insulin resistance(IR) was assessed by the Homeostasis Model Assessment. A total of 20 patients showed a MELD score higher than 14. The control group consisted in 15 sex-and aged-matched *** blood samples were obtained for subsequent analysis. Serum insulin was determined by Liaison automated immune chemiluminiscence assay(DiaSorin S.p.A.) using a sandwich assay. The sensitivity of the assay was 0.2 μU/mL. The intra and interassay variation coefficients were between 2 and17 μU/mL. Human active betatrophin was analyzed by specific quantitative sandwich ELISA(Aviscera Bioscience). The sensitivity of the assay was 0.4 ng/mL, and the intra and interassay reproducibility werebetatrophin levels were significantly increased in patients with cirrhosis compared with those in healthy subjects(P = 0.0001). betatrophin levels were also associated with disease severity, being higher in Child-Pugh C patients compared to Child-Pugh B(Pbetween plasma betatrophin levels and the severity of cirrhosis according to Child-Pugh classification(r = 0.53; P between serum betatrophin and plasmatic bilirrubin(r= 0.39; P between betatrophin and albumin(r =-0.41; P < 0.01) or prothrombin time(r =-0.44;P <0.01). Moreover, insulin

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Rare earth elements of fly ash from Wyoming’s Powder River Basin coal

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Journal of Rare Earths 2020年第2期38卷 219-226页

作者： Zaixing Huang Maohong Fan Hanjing Tian Department of Chemical and Petroleum Engineering University of WyomingWY 82071USA School of Civil and Environmental Engineering Georgia Institute of TechnologyGA 30332USA Department of Chemical Engineering West Virginia UniversityWV 26506USA

The advancement and increasing interests in green energy production and environmental protection technologies have spurred the demand for rare earth *** the other hand,the *** to rely 100% on import of these materials as the industry was crashed because of the environmental issues associated with mining and processing,and more importantly lack *** rare earth elements have many applications in defense and national security sectors,some of the elements were listed as strategic materials or critical materials because of the uncertainties in supply and ***,it has become imperative in searching for alternative resources for supplying rare earth elements including unconventional *** the strong incentive,coal fly ash is identified as one of the candidates among *** this study,we present rare earth element data for the 42 ash samples(all derived from Powder River Basin coal) that we collected from seven states(UT,WY,10,WI,ND,CO,and MI) representing 158 million tons of fly *** results indicate scattered distributions of rare earth elements with concentration ranging from 156 to 590 ppm although all the ash samples originated from the same coal basin(Powder River Basin).The rare earth element resource in these ashes is estimated between 74000 and 106000 *** ash samples were also characterized by elemental analysis,XRD,SEM-EDS and bet surface *** characterizations of the ashes were discussed as they might have implications in the subsequent rare earth element extraction *** summary,fly ash may represent a potential resource for rare earth element production.

关键词： Rare earth elements Coal fly ash XRD SEM-EDS bet surface area Critical materials

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Lineage relationship of CD8^＋ T cell subsets is revealed by progressive changes in the epigenetic landscape

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Cellular & Molecular Immunology 2016年第4期13卷 502-513页

作者： Joseph G. Crompton Manikandan Narayanan Suresh Cuddapah Rahul Roychoudhuri Yun Ji Wenjing Yang Shashank J. Patel Madhusudhanan Sukumar Douglas C. Palmer Weiqun Peng Ena Wang Francesco M. Marincola Christopher A. Klebanoff Keji Zhao John S. Tsang Luca Gatt-inoni Nicholas P. Restifo Surgery Branch National Cancer Institute National Institutes of Health Bethesda MD 20892 USA Cambridge Institute for Medical Research University of Cam bridge Cambridge CB20XY UK Systems Genomics and Bioinformatics Unit Laboratory of Systems Biology National Institute of Allergy and Infectious Diseases National Institutes of Health Bethesda MD 20892 USA Department of Environmental Medicine New York University School of Medicine Tuxedo NY 10987 USA Experimental Transplantation and Immunology Branch National Cancer Institute National Institutes of Health Bethesda MD 20892 USA Department of Physics The George Washington University Washington DC 20052 USA Research Branch Sidra Medical and Research Centre Doha Qatar Infectious Disease and Immunogenetics Section Department of Transfusion Medicine Clinical Center National Institutes of Health Bethesda MD 20892 USA Clinical Investigator Development Program NCI/NIH Bethesda MD 20892 USA Systems Biology Center National Heart Lung and Blood Institute National Institutes of Health Bethesda MD 20892 USA. Lombardi Comprehensive Cancer Center Georgetown University Washington. DC 20007. United States. Bethesda. MD 20892. USA.

To better elucidate epigenetic mechanisms that correlate with the dynamic gene expression program observed upon T-cell differentiation, we investigated the genomic landscape of histone modifications in naive and memory CD8＋ T cells. Using a ChlP-Seq approach coupled with global gene expression profiling, we generated genome-wide histone H3 lysine 4 （H3K4me3） and H3 lysine 27 （H3K27me3） trimethylation maps in naive, T memory stem cells, central memory cells, and effector memory cells in order to gain insight into how histone architecture is remodeled during T cell differentiation. We show that H3K4me3 histone modifications are associated with activation of genes, while H3K27me3 is negatively correlated with gene expression at canonical loci and enhancers associated with T-cell metabolism, effector function, and memory. Our results also reveal histone modifications and gene expression signatures that distinguish the recently identified T memory stem cells from other CD8＋ T-cell subsets. Taken together, our results suggest that CD8＋ lymphocytes undergo chromatin remodeling in a progressive fashion. These findings have major implications for our understanding of peripheral T-cell ontogeny and the formation of immunological memory.

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