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Kinematic properties of the dual AGN system J0038+4128 based on long-slit spectroscopy

Research in Astronomy and Astrophysics 2016年第3期16卷 43-50页

作者： Yang-Wei Zhang Yang Huang Jin-ming bai Xiao-Wei Liu Jian-Guo Wang Yunnan Observatories Chinese Academy of SciencesKunming 650011China Key Laboratory for the Structure and Evolution of Celestial Objects Chinese Academy of SciencesKunming 650011China Department of Astronomy Peking UniversityBeijing 100871China Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China University of Chinese Academy of Sciences Beijing 100049China

The study ofkiloparsec-scale dual active galactic nuclei （AGN） provides important clues for understanding the co-evolution between host galaxies and their central supermassive black holes undergoing a merging process. We present long-slit spectroscopy of J0038 ＋4128, a kiloparsec-scale dual AGN candidate, discovered recently by Huang et al., using the Yunnan Faint Object Spectrograph and Camera （YFOSC） mounted on the Lijiang 2.4-m telescope administered by Yunnan Observatories. From the long-slit spectra, we find that the average relative line-of-sight （LOS） velocity between the two nuclei （J0038＋4128N and J0038＋4128S） is about 150 km s-1. The LOS velocities of the emission lines from the gas ionized by the nuclei activities and of the absorption lines from stars governed by the host galaxies for different regions of J0038＋4128 exhibit the same trend. The same trend in velocities indicates that the gaseous disks are co-rotating with the stellar disks in this ongoing merging system. We also find several knots/giant H II regions scattered around the two nuclei with strong star formation revealed by the observed line ratios from the spectra. Those regions are also clearly detected in images from HST F336W/U-band and HST F555W/V-band.

关键词： techniques: spectroscopic -- galaxies: kinematics and dynamics -- galaxies: active -- galax- ies: interactions -- galaxies: nuclei -- galaxies: individual (J0038+4128)

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The photometric monitoring of γ-ray-loud narrow-line Seyfert 1 galaxy 1H0323+342 from 2006 to 2010

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Research in Astronomy and Astrophysics 2017年第7期17卷 47-56页

作者： Fang Wang Ding-Rong Xiong Jin-ming bai Shao-Kun Li Jian-Guo Wang Yunnan Observatories Chinese Academy of Sciences University of Chinese Academy of Sciences Key Laboratory for the Structure and Evolution of Celestial Objects Chinese Academy of Sciences Center for Astronomical Mega-Science Chinese Academy of Sciences

1H 0323＋342 is a γ-ray-loud narrow-line Seyfert 1 galaxy（NLS1）. The variability mechanism of γ-ray-loud NLS1 s remains unclear. We have observed 1H 0323＋342 photometrically from 2006 to2010 with a total of 41 nights of observations in order to constrain the variability mechanism. Intraday variabilities（IDVs） are detected on four nights. When considering the nights with time spans 〉 2 hours,the duty cycle is 28.3%. The average variability amplitude is 10.8% for IDVs and possibly variable nights. In the color-magnitude diagram, there are bluer-when-brighter chromatic trends for intraday and long-term timescales, which could be explained by the shock-in-jet model, and also could possibly be due to two distinct components or an accretion disk model.

关键词： galaxies active - galaxies individual (1H 0323+342)- galaxies jets

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Research Progresses on Auxin Response Factors

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Journal of Integrative Plant Biology 2006年第6期48卷 622-627页

作者： Hai-Bin Wei bai-ming Cui Yan-Li Ren Juan-Hua Li Wei-Bin Liao Nan-Fei Xu ming Peng State Key Laboratory of Tropical Crop Biotechnology Institute of Tropical Bioscience and Biotechnology Chinese Academy of Tropical Agricultural Sciences Haikou 571101 China College of Life Sciences Shihezi University Shihezi 832000 China BASF Plant Science L.L.C. Research Triangle Park North Carolina 27709-3528 USA 不详

Auxin response factors （ARFs）, a family of transcription factors, have been discovered recently. The ARFs bind specifically to the auxin response elements （AuxREs） within promoters of primary auxin responsive genes and function as activators or repressors. The ARFs contain three domains, namely a conserved Nterminal DNA-binding domain, a non-conserved middle region, and a conserved C-termlnal dlmerlzatlon domaln. The ARFs can form a protein complex with auxin/indoleacetic acid through homodimerization or heterodlmerization. The particular protein-protein interaction may play a key role in moduiating the expression of early auxin responsive genes. The identification of ARF mutations in Arabidopsis helps to demonstrate/dissect the function of ARFs in the normal growth and development of plants. Phylogenetic analysis also reveals some interesting protein evolution points in the ARF family.

关键词： auxin/indoleacetic acid auxin response elements auxin response factors auxin responsive genes.

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Hematuria after nocturnal exercise of a man: A case report

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World Journal of Clinical Cases 2024年第5期12卷 1025-1028页

作者： ming-Jian bai Song-Tao Yang Xue-Kai Liu Department of Clinical Laboratory Aerospace Center HospitalBeijing 100049China Department of Nephrology Aerospace Center HospitalBeijing 100049China

BACKGROUND A man experienced multiple episodes of macroscopic hematuria following nocturnal *** stones and tumors were considered the two most likely *** patient had two hobbies:Consuming health care products in large quantities and engaging in late-night *** SUMMARY Health care products contain a large amount of calcium phosphate,and we hypothesize that this could induce the formation of small phosphate *** exercise,the urinary system is abraded,resulting in *** patient was advised to stop using the health care ***,the aforementioned symptoms disappeared ***,the patient resumed the above two habits one year later;correspondingly,the macroscopic hematuria *** This finding further confirmed the above inference and allowed for a new avenue to determine the cause of the patient’s hematuria.

关键词： Hematuria Health care products Exercise Case report

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Vehicle flow formulation for two-echelon time-constrained vehicle routing problem

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Journal of Management Science and Engineering 2019年第2期4卷 75-90页

作者： Hongqi Li ming bai Yibin Zhao Changzhi Dai School of Transportation Science and Engineering Beihang UniversityBeijing100191China

Two-echelon routing problems,including variants such as the two-echelon vehicle routing problem(2E-VRP)and the two-echelon location routing problem(2E-LRP),involve assignment and location ***,the two-echelon time-constrained vehicle routing problem(2E-TVRP)that caters to from-linehaul-to-delivery practices does not involve assignment *** routing problem variant for networks with two eche-lons has not yet attracted enough research *** or long-distance services suffer from the lack of the assignment decisions between satellites and ***,the 2E-TVRP,rather than using assignment decisions,adopts time constraints to decide the routes on each of the two interacting echelons:large-capacity vehicles trans-port cargoes among satellites on the first echelon,and small-capacity vehicles deliver cargoes from satellites to customers on the second *** study introduces a mixed integer linear programming model for the 2E-TVRP and proposes a heuristic algorithm that incorporates the savings algorithm followed by a variable neighborhood search *** examples are used to test the mathematical formulation and the heuristic and a case study is used to demonstrate that the heuristic can effectively solve realistic-size instances of the 2E-TVRP.

关键词： Vehicle routing Two-echelon Time constraints Mixed integer linear programming Variable neighborhood search

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Rufoolivacin B,a novel polyketide pigment from the fruiting bodies of the fungus Cortinarius rufo-olivaceus(basidiomycetes)

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Chinese Chemical Letters 2009年第11期20卷 1324-1326页

作者： An Ling Zhang Jian Chun Qin ming Sheng bai Jin ming Gao Ya Mei Zhang Sheng Xiang Yang Hartmut Laatsch College of Science Northwest A & F University Yangling Shaanxi 712100 China Department of Orgnic Chemistry University of Gottingen Tammannstrasse 2 D-3 7077 Gottingen Germany College of Life Sciences Northwest A & F University Yangling Shaanxi 712100 China Center for Experiments & Education Technology Linyi Normal University Linyi Shandong 276005 China

A novel polyketide pigment （1） with the 4＇,10-coupled linkage between 1-naphthalenol and 1,4-anthraquinone, named rufoolivacin B together with the known analog rufoolivacin （2）, has been isolated from the fruiting bodies of the Chinese toadstool Cortinarius rufo-olivaceus （basidiomycetes）. Their structures were characterized by means of analysis of spectroscopic methods, including 2D-NMR experiments and HR-ESI-MS.

关键词： Anthraquinone Polyketide Basidiomycetes Cortinarius rufo-olivaceus Fungal pigment Rufoolivacin B

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Cyanide-bridged complexes based on dinuclear Cu(Ⅱ)-M(Ⅱ) [M=Pb and Cu] building blocks: Synthesis, crystal structures and magnetic properties

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Science China Chemistry 2012年第6期55卷 978-986页

作者： WANG HaiLong WANG Kang CAO Wei bai ming BIANYongZhong JIANG JianZhuang Marine College Shandong University at Weihai Weihai 264209 China Department of Chemistry University of Science and Technology Beijing Beijing 100083 China

Four cyanide-bridged heterometallic complexes { [CuPb（L1）][FenI（bpb）（CN）2] }2-（C104）2.2H20.2CH3CN （1）, { [CuPb（LI）]2[FeII （CN）6]（HzO）z}＇10H20 （2）, {[Cu2（L2）][Fent（bpb）（CN）2]2}＇2H20＇2CH3OH （3） and {[Cu2（L2）]3[FeIII（CN）6]z（H20）2}-10H20 （4） have been synthesized by treating K[Fem（bpb）（CN）2] [bpb2-=l,2-bis（pyridine-2-carboxamido）benzenate] and K3[Feln（CN）]6 with dinuc[ear compartmental macrocyclic Schiff-base complexes [CuPh（LI）].（C104）2 or [Cu2（L2）]-（CIO4）2, in which H2LJ was derived from 2,6-diformyl-4-methyl-phenol, ethylenediamine, and diethylenetriamine in the molar ratio of 2：1：1 and H2L2 from 2,6-diformyl-4-methyl-phenol and propylenediamine in the molar ratio of 1：1. Single crystal X-ray diffraction analysis reveals that compound 1 displays a cyclic hexanuclear heterotrimetallic molecular structure with alternating [Fem（bpb）（CN）2]- and [CuPb（L＋）]2＋ units. Complex 2 is of a neutral dumb-bell-type pentanuclear molecular configuration consisting of one [Fe（CN）6]4- anion sandwiched in two [CuPu（L1）]2＋ cations, and the pentanuclear moieties are further connected by the hydro- gen bonding to give a 2D supramolecular framework. Heterobimetallic complex 3 is a tetranuclear molecule composed of a centrosymmetric [Cuz（L2）]2＋ segment and two terminal cyanide-containing blocks [Fetn（bpb）（CN）2]-. Octanuclear compound 4 is built from two [Fe（CN）6]3- anions sandwiched in the three [Cu2L2]2＋ cations. Investigation of their magnetic properties reveals the overall antiferromagnetic behavior in the series of complexes except 2.

关键词： cyanide-bridged complex crystal structures magnetic properties

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Prevention program for the COVID-19 in a children’s digestive endoscopy center

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World Journal of Clinical Cases 2020年第8期8卷 1343-1349页

作者： Xiao-Peng Ma Huan Wang Da-ming bai Yu Zou Shao-ming Zhou Fei-Qiu Wen Dong-Ling Dai Digestive Endoscopy Center Department of GastroenterologyShenzhen Children's HospitalShenzhen 518036Guangdong ProvinceChina Pediatric Committee of Shenzhen Medical Association Shenzhen 518036Guangdong ProvinceChina Shenzhen Pediatric Medical Quality Control Center Shenzhen 518036Guangdong ProvinceChina

The pneumonia caused by the coronavirus disease-2019(COVID-19)outbreak in Wuhan,China constitutes a public health emergency of international *** gastrointestinal symptoms of vomiting,diarrhea and abdominal pain and the detection of COVID-19 nucleic acid from fecal specimens in a small number of patients suggest the possibility of transmission via the gastrointestinal *** of all ages are vulnerable to this virus,including *** endoscopy is an invasive procedure during which children cannot wear masks;therefore,they have higher risks of exposure to COVID-19,and the digestive endoscopy center is a relatively high-risk area for COVID-19 *** on these factors and in combination with related policies and regulations,a prevention and control program for the COVID-19 pneumonia in a children's digestive endoscopy center was established to prevent the COVID-19 nosocomial infection.

关键词： Digestive endoscopy Disinfection COVID-19 Nosocomial infection Pediatrics Prevention

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Quassinoids from the Root Barks of Ailanthus altissima:Isolation,Configurational Assignment,and Cytotoxic Activities

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Chinese Journal of Chemistry 2021年第4期39卷 879-886页

作者： Ye-Qing Du ming bai Xiao-Qi Yu Tian-ming Lv Bin Lin Xiao-Xiao Huang Shao-Jiang Song Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research&Development Liaoning ProvinceSchool of Traditional Chinese Materia MedicaShenyang Pharmaceutical UniversityShenyangLiaoning 110016China School of Pharmaceutical Engineering Shenyang Pharmaceutical UniversityShenyangLiaoning 110016China

Main observation and conclusion Quassinoids,a class of highly oxygenated triterpenes,have been isolated as bitter principles from the plants of Simaroubaceae *** new quassinoids,chouchunlactone A-E(1-5),and two known ones were identified from the root barks of Ailanthus altissima Swingle(Simaroubaceae).The chemical structures of the new compounds were deduced by spectroscopic data analyses,NMR calculations and DP4+probability *** absolute configurations were defined by comparison of their experimental and calculated electronic circular dichroism(ECD)spectra data,and compounds 1-2 were further confirmed by single-crystal X-ray ***,compound 5 showed potencies equivalent to sorafenib(IC50 value,9.70μmol·L–1)against HepG2 *** Hoechst 33342 staining,JC-1 fluorescent dye and Annexin V/PI analysis studies demonstrated that 5 can induce apoptosis and attenuate mitochondrial membrane potential(MMP)in HepG2 cells.

关键词： Ailanthus altissima Simaroubaceae Quassinoids Cytotoxicity Apoptosis

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Rapid divergent coevolution of Sinopotamon freshwater crab genitalia facilitates a burst of species diversification

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Integrative Zoology 2020年第3期15卷 174-186页

作者： Fengxin YAO Boyang SHI Xiaoqi WANG Da PAN ming bai Jie YAN Neil CUMBERLIDGE Hongying SUN Jiangsu Key Laboratory for Biodiversity and Biotechnology College of Life SciencesNanjing Normal UniversityNanjingChina Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijingChina Department of Biology Northern Michigan UniversityMarquetteMichiganUSA

One of the most striking radiations in brachyuran evolution is the considerable morphological diversification of the external reproductive structures of primary freshwater crabs:the male first gonopod(G1)and the female vulva(FV).However,the lack of quantitative studies,especially the lack of data on female genitalia,has seriously limited our understanding of genital evolution in these *** we examined 69 species of the large Chinese potamid freshwater crab genus Sinopotamon Bott,1967(more than 80%of the described species).We used a landmark-based geometric morphometric approach to analyze variation in the shape of the G1 and FV,and to compare the relative degree of variability of the genitalia with non-reproductive structures(the third maxillipeds).We found rapid divergent evolution of the genitalia among species of Sinopotamon when compared to non-reproductive *** addition,the reconstruction of ancestral groundplans,together with plotting analyses,indicated that the FV show the most rapid divergence,and that changes in FV traits correlate with changes in G1 *** we provide new evidence for coevolution between the male and female external genitalia of Sinopotamon that has likely contributed to rapid divergent evolution and an associated burst of speciation in this lineage.

关键词： coevolution genital diversification freshwater crab morphological evolution

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