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Identification of novel mammalian viruses in tree shrews(Tupaia belangeri chinensis)

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Zoological Research 2024年第2期45卷 429-438页

作者： hong Zhou Ren-Rong tian Xiu-Rong Wang Jin-Xuan Yang yun-Xiao Wang Ming-Liang Zhao Xu-Dong Zhang yu-Hua Ma Long-Bao Lv Edward CHolmes {2.-tang zheng Wei-feng Shi School of Clinical and Basic Medical sciences Shandong First Medical University&Shandong Academy of Medical SciencesJi’nanShandong 250117China Key Laboratory of Emerging Infectious Diseases in Universities of Shandong Shandong First Medical University and Shandong Academy of Medical SciencesTaianShandong 271000China Key Laboratory of Animal Models and Human Disease Mechanisms of the chinese academy of sciences/Key Laboratory of Bioactive Peptides of yunnan Province KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common DiseasesCenter for Biosafety Mega-ScienceKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China School of Public Health Shandong First Medical University&Shandong Academy of Medical SciencesJi’nanShandong 250117China National Resource Center for Non-Human Primates Kunming Primate Research CenterKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650107China Sydney Institute for Infectious Diseases School of Medical SciencesThe University of SydneySydneyNew South Wales 2006Australia Department of Infectious Diseases Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China shanghai Institute of Virology Shanghai Jiao Tong University School of MedicineShanghai 200025China

The chinese tree shrew(Tupaia belangeri chinensis),a member of the mammalian order Scandentia,exhibits considerable similarities with primates,including humans,in aspects of its nervous,immune,and metabolic *** similarities have established the tree shrew as a promising experimental model for biomedical research on cancer,infectious diseases,metabolic disorders,and mental health ***,we used metatranscriptomic sequencing to analyze plasma,as well as oral and anal swab samples,from 105 healthy asymptomatic tree shrews to identify the presence of potential zoonotic *** total,eight mammalian viruses with complete genomes were identified,belonging to six viral families,including Flaviviridae,Hepeviridae,Parvovirinae,Picornaviridae,Sedoreoviridae,and ***,the presence of rotavirus was recorded in tree shrews for the first *** viruses-hepacivirus 1,parvovirus,and picornavirus-exhibited low genetic similarity(2.hepatovirus A and hepevirus-exhibited high similarity(>94%)to known viral *** analyses also revealed that the rotavirus and mammalian orthoreovirus identified in this study may be novel *** findings provide insights into the diverse viral spectrum present in captive chinese tree shrews,highlighting the necessity for further research into their potential for crossspecies transmission.

关键词： Tree shrew(Tupaia belangeri chinensis) Meta-transcriptomic sequencing Mammalian viruses Genomic analysis

Digitization of astronomical Photographic Plates of china and Astrometric Measurement of Single-exposure Plates

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Research in Astronomy and Astrophysics 2024年第5期24卷 103-116页

作者：商正君于涌王亮亮杨美婷杨静沈世银刘敏徐权峰崔辰州樊东卫唐正宏赵建海 shanghai astronomical {2. Chinese Academy of SciencesShanghai 200030China University of chinese academy of sciences Beijing 100049China Key Lab for Astrophysics Shanghai200234China National astronomical Observatories Chinese Academy of SciencesBeijing 100101China National astronomical Data Center Chinese Academy of SciencesBeijing 100101China

From the mid-19th century to the end of the 2.th century, photographic plates served as the primary detectors for astronomical observations. astronomical photographic observations in {2. began in 1901, and over a century, a total of approximately 30,000 astronomical photographic plates were captured. These historical plates play an irreplaceable role in conducting long-term, time-domain astronomical research. To preserve and explore these valuable original astronomical observational data, shanghai astronomical observatory has organized the transportation of plates, taken during nighttime observations from various stations across the country, to the Sheshan Plate Archive for centralized preservation. For the first time, plate information statistics were calculated. On this basis, the plates were cleaned and digitally scanned, and finally digitized images were acquired for 2.,314 plates. In this study, using Gaia DR2.as the reference star catalog, astrometric processing was carried out successfully on 15,696 single-exposure plates, including object extraction, stellar identification,and plate model computation. As a result, for long focal length telescopes, such as the 40 cm double-tube refractor telescope, the 1.56 m reflector telescope at shanghai astronomical observatory, and the 1m reflecting telescope at yunnan astronomical observatory, the astrometric accuracy obtained for their plates is approximately 0."1–0."3. The distribution of astrometric accuracy for medium and short focal length telescopes ranges from 0."3 to 1."0. The relevant data of this batch of plates, including digitized images and a stellar catalog of the plates, are archived and released by the National astronomical Data Center. Users can access and download plate data based on keywords such as station, telescope, observation year, and observed celestial coordinates.

关键词： methods data analysis-techniques image processing-astronomical databases miscellaneous-astrometry

Astrometry of three near Earth asteroids with the Lijiang 2.4 m telescope

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Research in Astronomy and Astrophysics 2015年第3期15卷 435-442页

作者： Xi-Liang Zhang yong yu Xue-Li Wang Chuan-Jun Wang Liang Chang yu-feng Fan {2.-hong tang yunnan Observatories Chinese Academy of Sciences Key Laboratory of the Structure and Evolution of Celestial Objects Chinese Academy of Sciences shanghai astronomical {2. Chinese Academy of Sciences

Under the framework of observational campaigns organized by the GAIA Follow Up Network for Solar System Objects, three near Earth asteroids, 367943 Duende, 99942.Apophis and 2.13 TV135, were observed with the Lijiang 2.4m telescope administered by yunnan Observatories. The software package PRISM was used to calibrate the CCD fields and measure the positions of 99942.Apophis and 2.13 TV135, and our own software was used for 367943 Duende. A comparison of the results show that the ephemerides of INPOP10a and JPL are consistent for 99942.Apophis and 2.13 TV135, however, they are quite inconsistent for 367943 Duende. Moreover, we have found that differences between the mean values in the ephemerides of INPOP10a and JPL are about 72. and -199＂ in right ascension and declination respectively for 367943 Duende. Moreover, the ephemeris published by JPL is reliable in terms of the mean observed-minus-calculated （O - C） residuals in right ascension and declination of about 2.72. and 1.49＂ respectively.

关键词： astrometry -- near Earth objects -- astrometric observation --ephemerides

The Jiao Tong University Spectroscopic Telescope Project

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astronomical Techniques and Instruments 2024年第1期1卷 16-30页

作者： JUST Team Chengze Liu Ying Zu Fabo feng Zhaoyu Li yu yu Hua Bai Xiangqun Cui Bozhong Gu Yizhou Gu Jiaxin Han {2.hui Hou Zhongwen Hu Hangxin Ji Yipeng Jing Wei Li Zhaoxiang Qi Xianyu Tan Cairang tian Dehua Yang Xiangyan yuan Chao Zhai Congcong Zhang Jun Zhang Haotong Zhang Pengjie Zhang {2. Zhang Yi Zhao Xianzhong zheng Qingfeng Zhu Xiaohu Yang Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai 200240China Department of Astronomy School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Nanjing Institute of astronomical Optics&Technology Chinese Academy of SciencesNanjing 210042China University of chinese academy of sciences NanjingNanjing 211135China University of chinese academy of sciences Beijing 101408China Lenghu Technology Innovation Industrial Park Management Committee Lenghu 817400China shanghai astronomical {2. Chinese Academy of SciencesShanghai 200030China Department of Astronomy University of Science and Technology of ChinaHefei 230026China National astronomical Observatories Chinese Academy of SciencesBeijing 100101China Purple Mountain observatory Chinese Academy of SciencesNanjing 210023China

The Jiao Tong University Spectroscopic Telescope(JUST)is a 4.4-meter f/6.0 segmented-mirror telescope dedicated to spectroscopic *** JUST primary mirror is composed of 18 hexagonal segments,each with a diameter of 1.1 *** provides two Nasmyth platforms for placing science *** Nasmyth focus fits a field of view of 10′and the other has an extended field of view of 1.2.with correction optics.A tertiary mirror is used to switch between the two Nasmyth *** will be installed at a site at Lenghu in Qinghai Province,china,and will conduct spectroscopic observations with three types of instruments to explore the dark universe,trace the dynamic universe,and search for exoplanets:(1)a multi-fiber(2.00 fibers)medium-resolution spectrometer(R=4000-5000)to spectroscopically map galaxies and large-scale structure;(2.an integral field unit(IFU)array of 500 optical fibers and/or a long-slit spectrograph dedicated to fast follow-ups of transient sources for multi-messenger astronomy;(3)a high-resolution spectrometer(R~100000)designed to identify Jupiter analogs and Earth-like planets,with the capability to characterize the atmospheres of hot exoplanets.

关键词： astronomical instrumentation Optical telescopes Large-scale structure of the universe Redshift surveys Time domain astronomy Exoplanet astronomy

Consensus on the digestive endoscopic tunnel technique

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World Journal of Gastroenterology 2019年第7期25卷 744-776页

作者： Ning-Li Chai Hui-Kai Li En-Qiang Linghu Zhao-Shen Li Shu-tian Zhang yu Bao Wei-Gang Chen Philip WY Chiu Tong Dang Wei Gong Shu-tang Han Jian-yu Hao Shui-Xiang He Bing Hu1 Bing Hu2.Xiao-Jun Huang {2.-Hui Huang Zhen-Dong Jin Mouen A Khashab James Lau Peng Li Rui Li De-Liang Liu Hai-feng Liu Jun Liu Xiao-Gang Liu Zhi-Guo Liu Ying-Cai Ma Gui-{2. Peng Long Rong Wei-hong Sha Pateek Sharma Jian-Qiu Sheng Shui-Sheng Shi Dong Wan Seo Si-yu Sun Gui-Qi Wang Wen Wang Qi Wu hong Xu Mei-Dong Xu Ai-Ming Yang Fang Yao hong-Gang yu Ping-hong Zhou Bin Zhang Xiao-feng Zhang Ya-Qi Zhai Department of Gastroenterology and Hepatology Chinese PLA General HospitalBeijing 100853China Department of Gastroenterology Beijing Chaoyang HospitalCapital Medical UniversityBeijing 100020China Department of Gastroenterology the First Affiliated Hospital of Xi’an Jiao Tong UniversityXi’an 710000Shaanxi ProvinceChina Department of Gastroenterology West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Endoscopy Eastern Hepatobiliary Surgical Hospital Affiliated to Naval Medical UniversityShanghai 200438China Department of Gastroenterology the Second Hospital of Lanzhou UniversityLanzhou 730030Gansu ProvinceChina Department of Gastroenterology Peking University Third HospitalBeijing 100191China Division of Gastroenterology and Hepatology the Johns Hopkins University School of MedicineBaltimoreMD 21218United States Department of Gastrointestinal Endoscopy Prince of Wales Hospitalthe Chinese University of Hong KongHong KongChina Department of Gastroenterology the First Affiliated Hospital of Soochow UniversitySuzhou 215006Jiangsu ProvinceChina Department of Gastroenterology Second Xiangya Hospital of Central South UniversityChangsha 410000Hunan ProvinceChina Department of Gastroenterology Changhai HospitalNaval Medical UniversityShanghai 200433China Department of Gastroenterology General Hospital of Chinese People’s Armed Police ForcesBeijing 100039China Division of Gastroenterology Union Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022Hubei ProvinceChina Department of Gastroenterology Sichuan Provincial People’s HospitalChengdu 610072Sichuan ProvinceChina Department of Gastroenterology Xijing HospitalAir Force Medical UniversityXi’an 710032Shaanxi ProvinceChina Department of Digestion Qinghai Provincial People’s HospitalXining 810007Qinghai ProvinceChina Department of Gastroenterology Southwest HospitalArmy Medical UniversityChongqing 400038China Department of Gastroenterology Peking Univ

With the digestive endoscopic tunnel technique(DETT), many diseases that previously would have been treated by surgery are now endoscopically curable by establishing a submucosal tunnel between the mucosa and muscularis propria(MP). Through the tunnel, endoscopic diagnosis or treatment is performed for lesions in the mucosa, in the MP, and even outside the gastrointestinal(GI) *** present, the tunnel technique application range covers the following:(1)Treatment of lesions originating from the mucosal layer, e.g., endoscopic submucosal tunnel dissection for oesophageal large or circular early-stage cancer or precancerosis;(2. treatment of lesions from the MP layer, per-oral endoscopic myotomy, submucosal tunnelling endoscopic resection, etc.; and(3) diagnosis and treatment of lesions outside the GI tract, such as resection of lymph nodes and benign tumour excision in the mediastinum or abdominal cavity. With the increasing number of DETTs performed worldwide, endoscopic tunnel therapeutics, which is based on DETT, has been gradually developed and optimized. However, there is not yet an expert consensus on DETT to regulate its indications, contraindications, surgical procedure, and postoperative *** International DETT Alliance signed up this consensus to standardize the procedures of DETT. In this consensus, we describe the definition, mechanism,and significance of DETT, prevention of infection and concepts of DETTassociated complications, methods to establish a submucosal tunnel, and application of DETT for lesions in the mucosa, in the MP and outside the GI tract(indications and contraindications, procedures, pre-and postoperative treatments, effectiveness, complications and treatments, and a comparison between DETT and other operations).

关键词： Digestive endoscopic tunnel technique Endoscopic submucosal tunnel dissection Per-oral endoscopic myotomy Submucosal tunnelling endoscopic resection Gastrointestinal tract

Site testing campaign for the Large Optical/infrared Telescope of china:overview

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Research in Astronomy and Astrophysics 2020年第6期20卷 81-95页

作者： Lu feng Jin-Xin Hao Zi-Huang Cao Jin-Min Bai Ji Yang Xu Zhou yong-Qiang Yao Jin-Liang Hou yong-Heng Zhao yu Liu Teng-Fei Song Li-yong Liu Jia Yin Hua-Lin Chen Chong Pei Ali Esamdin Lu Ma Chun-Hai Bai Peng Wei Jing Xu Guang-Xin Pu Guo-Jie feng Xuan Zhang Liang Ming Abudusaimaitijiang Yisikandee Jian-Rong Shi Jian Li yuan tian zheng Wang Xia Wang Xiao-Jun Jiang Jian-feng Wang Jian-feng tian Yan-Jie Xue Jian-Sheng Chen Jing-Yao Hu Zhi-Xia Shen yun-Ying Jiang National astronomical Observatories Chinese Academy of SciencesBeijing 100101China yunnan Observatories Chinese Academy of SciencesKunming 650216China Xinjiang astronomical observatory Chinese Academy of SciencesUrumqi 830011China shanghai astronomical {2. Chinese Academy of SciencesShanghai 200030China Nanjing Institute of astronomical Optics&Technology Chinese Academy of SciencesNanjing 210042China Purple Mountain observatory Chinese Academy of SciencesNanjing 210033China University of chinese academy of sciences Beijing 100049China

The Large Optical/infrared Telescope(LOT)is a ground-based 12.m diameter optical/infrared telescope which is proposed to be built in the western part of china in the next *** on satellite remote sensing data,along with geographical,logistical and political considerations,three candidate sites were chosen for ground-based astronomical performance *** sites include:Ali in Tibet,Daocheng in Sichuan and Muztagh-ata in *** until now,all three sites have continuously collected data for two *** this paper,we will introduce this site testing campaign,and present its monitoring results obtained during the period between March 2.17 and March 2.19.

关键词： techniques telescope-site testing

Data processing and data products from 2.17 to 2.19 campaign of astronomical site testing at Ali,Daocheng and Muztagh-ata

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Research in Astronomy and Astrophysics 2020年第6期20卷 109-130页

作者： Zi-Huang Cao Jin-Xin Hao Lu feng Hugh RAJones Jian Li Jing Xu Li-yong Liu Teng-Fei Song Jian-feng Wang Hua-Lin Chen Yan-Jie Xue Huang Shen yong-Heng Zhao Zhao-Xiang Qi Jian-Rong Shi yuan tian zheng Wang Xia Wang Jin-Liang Hou Jin-Ming Bai Ji Yang Xu Zhou yong-Qiang Yao Jia Yin Ali Esamdin Guang-Xin Pu Peng Wei Chun-Hai Bai Guo-Jie feng Lu Ma Xuan Zhang yu Liu Chong Pei Zhi-Xia Shen yun-Ying Jiang Jian-feng tian Xian-Qun Zeng Zhi-Gang Hou Xu Yang Jun-Bo Zhang Shi-Long Liao Dong-Wei Fan yun-Fei Xu Jian-Ping Xiong Tai-Sheng Yan Xi Zhang Chang-Hua Li Yi-Han Tao Si-Cheng yu Zhi-Song Cao hong-Shuai Wang National astronomical Observatories Chinese Academy of SciencesBeijing 100101China University of chinese academy of sciences Beijing 100049China shanghai astronomical {2. Chinese Academy of SciencesShanghai 200030China Centre for Astrophysics University of HertfordshireHatfieldUK School of Journalism Communication University of ChinaBeijing 100024China Nanjing Institute of astronomical Optics&Technology Chinese Academy of SciencesNanjing 210042China Xinjiang astronomical observatory Chinese Academy of SciencesUrumqi 830011China yunnan Observatories Chinese Academy of SciencesKunming 650216China Purple Mountain observatory Chinese Academy of SciencesNanjing 210033China Beijing Kaiyang Space Technology Co. LtdBeijing 100085China

Based on previous site testing and satellite cloud data,Ali,Daocheng and Muztagh-ata have been selected as candidate sites for the Large Optical/Infrared Telescope(LOT) in *** present the data collection,processing,management and quality analysis for our site testing based on using similar *** analyze meteorological data,seeing,background light,cloud and precipitable water vapor data from 2.17 March 10 to 2.19 March *** also investigated the relative usefulness of our all-sky camera data in comparison to that from the meteorological TERRA satellite data based on a night-by-night comparison of the correlation and consistency between *** find a 6% discrepancy arising from a wide range of factors.

关键词： LOT Site-selection-data processing

Long-term analysis of clear nights using satellite data considering astronomical sites in western china

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Research in Astronomy and Astrophysics 2020年第6期20卷 96-108页

作者： Zi-Huang Cao Li-yong Liu yong-Heng Zhao Lu {2. Hugh RAJones Huang Shen Jin-Xin Hao Yan-Jie Xue yong-Qiang Yao Jing Xu Ali Esamdin Zhao-Xiang Qi Jian-Rong Shi Jian Li yuan tian zheng Wang Tai-Sheng Yan Xia Wang Jian-Ping Xiong Si-Cheng yu Jun-Bo Zhang Zhi-Xia Shen yun-Ying Jiang Jia Yin Guang-Xin Pu Peng Wei Chun-Hai Bai Guo-Jie {2. Lu Ma Teng-Fei Song Jian-{2. Wang Jian-{2. tian Xian-Qun Zeng Zhi-Gang Hou Shi-Long Liao Zhi-Song Cao Dong-Wei Fan yun-Fei Xu Chang-Hua Li Yi-Han Tao National astronomical Observatories Chinese Academy of SciencesBeijing 100101China University of chinese academy of sciences Beijing 100049China shanghai astronomical {2. Chinese Academy of SciencesShanghai 200030China Centre for Astrophysics University of HertfordshireHatfieldUK School of Journalism.Communication University of china Beijing 100024China Xinjiang astronomical observatory Chinese Academy of SciencesUrumqi 830011China yunnan Observatories Chinese Academy of SciencesKunming 650216China

A large ground-based optical/infrared telescope is being planned for a world-class astronomical site in *** cloud-free night percentage is the primary meteorological consideration for evaluating candidate *** data from GMS and NOAA satellites and the MODIS instrument were utilized in this research,covering the period from 1996 to *** data analysis benefits from overlapping results from different independent teams as well as a uniform analysis of selected sites using GMS+NOAA *** significant ground-based monitoring is needed to validate these findings,we identify three different geographical regions with a high percentage of cloud-free conditions(~83%on average),which is slightly lower than at Mauna Kea and Cerro Armazones(~85%on average)and were chosen for the large international projects TMT and ELT *** study finds evidence that cloud distributions and the seasonal changes affected by the prevailing westerly winds and summer monsoons reduce the cloud cover in areas influenced by the *** is consistent with the expectations from climate change models and is suggestive that most of the identified sites will have reduced cloud cover in the future.

关键词： methods statistical-site testing-atmospheric effects-MODIS

The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST)

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Research in Astronomy and Astrophysics 2012年第9期12卷 1197-1242页

作者： Xiang-Qun Cui yong-Heng Zhao Yao-Quan Chu Guo-Ping Li Qi Li Li-Ping Zhang hong-Jun Su {2.-Qiu Yao Ya-Nan Wang Xiao-{2. Xing Xin-Nan Li yong-tian Zhu Gang Wang Bo-Zhong Gu A-Li Luo Xin-Qi Xu Zhen-Chao Zhang Gen-Rong Liu Hao-Tong Zhang De-Hua Yang Shu-yun Cao Hai-yuan Chen Jian-Jun Chen Kun-Xin Chen Ying Chen Jia-Ru Chu Lei feng Xue-Fei Gong yong-Hui Hou hong-Zhuan Hu Ning-Sheng Hu Zhong-Wen Hu Lei Jia Fang-Hua Jiang Xiang Jiang Zi-Bo Jiang Ge Jin Ai-Hua Li Yan Li Ye-Ping Li Guan-QunLiu Zhi-Gang Liu Huo-Ming Shi {2.-hong tang Qing-Sheng Tao Xiang-Yan yuan Chao Zhai Jing Zhang Yan-Xia Zhang yong Zhang Ming Zhao Fang Zhou Guo-Hua Zhou Jie Zhu Si-Cheng Zou National astronomical Observatories Chinese Academy of Sciences Beijing 100012 China yzhao @ *** Nanjing Institute of astronomical Optics and Technology National Astronomical ObservatoriesChinese Academy of Sciences Nanjing 210042 China University of Science and Tecfinologyof china Hefei 230026 China shanghai astronomical {2. Chinese Academy of Sciences Shanghai 200030 China Institute of Architecture Design and Research Chinese Academy of Sciences Beijing 100190China

The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST, also called the Guo Shou Jing Telescope) is a special reflecting Schmidt telescope. LAMOST’s special design allows both a large aperture (effective aperture of 3.6 m–4.9 m) and a wide field of view (FOV) (5°). It has an innovative active reflecting Schmidt configuration which continuously changes the mirror’s surface that adjusts during the observation process and combines thin deformable mirror active optics with segmented active optics. Its primary mirror (6.67m×6.05 m) and active Schmidt mirror (5.74m×4.40 m) are both segmented, and composed of 37 and 2. hexagonal sub-mirrors respectively. By using a parallel controllable fiber positioning technique, the focal surface of 1.75 m in diameter can accommodate 4000 optical fibers. Also, LAMOST has 16 spectrographs with 32.CCD cameras. LAMOST will be the telescope with the highest rate of spectral acquisition. As a national large scientific project, the LAMOST project was formally proposed in 1996, and approved by the chinese government in 1997. The construction started in 2.01, was completed in 2.08 and passed the official acceptance in June 2.09. The LAMOST pilot survey was started in October 2.11 and the spectroscopic survey will launch in September 2.12. Up to now, LAMOST has released more than 480 000 spectra of objects. LAMOST will make an important contribution to the study of the large-scale structure of the Universe, structure and evolution of the Galaxy, and cross-identification of multiwaveband properties in celestial objects.

关键词： techniques: wide field telescope - active optics - multi fiber - spectroscopy survey - data reduction