检索结果-内蒙古大学图书馆

Generalised Error Functions from the Kerr Metric

Chinese Physics Letters 2016年第3期33卷 12-16页

作者：唐文林罗子人刘润球 Science and Technology on Aerospace Flight Dynamics Laboratory Beijing Aerospace Control Center Department of Aerospace Guidance Navigation and Control School of AstronauticsBeihang University QUEST Center of Quantum Engineering and Space-Time Research Leibniz Universitt Hannover Max Planck Institute for Gravitational Physics(Albert Einstein Institute) Institute of Applied Mathematics Morningside Center of Mathematics and LESCInstitute of Computational MathematicsAcademy of Mathematics and System ScienceChinese Academy of Sciences

Motivated by the effort to understand the mathematical structure underlying the Teukolsky equations in a Kerr metric background, a homogeneous integral equation related to the prolate spheroidal function is studied. From the consideration of the Fredholm determinant of the integral equation, a family of generalized error function is defined, with which the Fredholm determinant of the sinc kernel is also evaluated. An analytic solution of a special ease of the fifth Painlev~ transcendent is then worked out explicitly.

关键词： of is exp in Generalised Error Functions from the Kerr Metric from

来源：评论

学校读者我要写书评

暂无评论

Investigations of Anisotropic Flow Using Multiparticle Azimuthal Correlations in pp, p−Pb, Xe-Xe, and Pb-Pb Collisions at the LHC

引用

Physical Review Letters 2019年第14期123卷 142301-142301页

作者： S. Acharya D. Adamová S. P. Adhya A. Adler J. Adolfsson M. M. Aggarwal G. Aglieri Rinella M. Agnello N. Agrawal Z. Ahammed S. Ahmad S. U. Ahn S. Aiola A. Akindinov M. Al-Turany S. N. Alam D. S. D. Albuquerque D. Aleksandrov B. Alessandro H. M. Alfanda R. Alfaro Molina B. Ali Y. Ali A. Alici A. Alkin J. Alme T. Alt L. Altenkamper I. Altsybeev M. N. Anaam C. Andrei D. Andreou H. A. Andrews A. Andronic M. Angeletti V. Anguelov C. Anson T. Antičić F. Antinori P. Antonioli R. Anwar N. Apadula L. Aphecetche H. Appelshäuser S. Arcelli R. Arnaldi M. Arratia I. C. Arsene M. Arslandok A. Augustinus R. Averbeck S. Aziz M. D. Azmi A. Badalà Y. W. Baek S. Bagnasco R. Bailhache R. Bala A. Baldisseri M. Ball R. C. Baral R. Barbera L. Barioglio G. G. Barnaföldi L. S. Barnby V. Barret P. Bartalini K. Barth E. Bartsch N. Bastid S. Basu G. Batigne B. Batyunya P. C. Batzing D. Bauri J. L. Bazo Alba I. G. Bearden C. Bedda N. K. Behera I. Belikov F. Bellini R. Bellwied L. G. E. Beltran V. Belyaev G. Bencedi S. Beole A. Bercuci Y. Berdnikov D. Berenyi R. A. Bertens D. Berzano L. Betev A. Bhasin I. R. Bhat H. Bhatt B. Bhattacharjee A. Bianchi L. Bianchi N. Bianchi J. Bielčík J. Bielčíková A. Bilandzic G. Biro R. Biswas S. Biswas J. T. Blair D. Blau C. Blume G. Boca F. Bock A. Bogdanov L. Boldizsár A. Bolozdynya M. Bombara G. Bonomi M. Bonora H. Borel A. Borissov M. Borri E. Botta C. Bourjau L. Bratrud P. Braun-Munzinger M. Bregant T. A. Broker M. Broz E. J. Brucken E. Bruna G. E. Bruno M. D. Buckland D. Budnikov H. Buesching S. Bufalino P. Buhler P. Buncic O. Busch Z. Buthelezi J. B. Butt J. T. Buxton D. Caffarri H. Caines A. Caliva E. Calvo Villar R. S. Camacho P. Camerini A. A. Capon F. Carnesecchi J. Castillo Castellanos A. J. Castro E. A. R. Casula F. Catalano C. Ceballos Sanchez P. Chakraborty S. Chandra B. Chang W. Chang S. Chapeland M. Chartier S. Chattopadhyay A. Chauvin C. Cheshkov B. Cheynis V. Chibante Barroso D. D. Chinellato S. Cho P. Chochula T. Chowdhury P. Christakoglou C. H. Christensen P. Christiansen T. Chujo C. Cical Variable Energy Cyclotron Centre Homi Bhabha National Institute Nuclear Physics Institute of the Czech Academy of Sciences Johann-Wolfgang-Goethe Universität Frankfurt Institut für Informatik Fachbereich Informatik und Mathematik Lund University Department of Physics Division of Particle Physics Physics Department Panjab University European Organization for Nuclear Research (CERN) Dipartimento DISAT del Politecnico and Sezione INFN Centro Fermi—Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi’ Department of Physics Aligarh Muslim University Korea Institute of Science and Technology Information Yale University Institute for Theoretical and Experimental Physics Research Division and ExtreMe Matter Institute EMMI GSI Helmholtzzentrum für Schwerionenforschung GmbH Universidade Estadual de Campinas (UNICAMP) National Research Centre Kurchatov Institute INFN Sezione di Torino Central China Normal University Instituto de Física Universidad Nacional Autónoma de México COMSATS University Islamabad INFN Sezione di Bologna Dipartimento di Fisica e Astronomia dell’Università Sezione INFN Bogolyubov Institute for Theoretical Physics National Academy of Sciences of Ukraine Department of Physics and Technology University of Bergen Institut für Kernphysik Johann Wolfgang Goethe-Universität Frankfurt St. Petersburg State University Horia Hulubei National Institute of Physics and Nuclear Engineering School of Physics and Astronomy University of Birmingham Westfälische Wilhelms-Universität Münster Institut für Kernphysik Physikalisches Institut Ruprecht-Karls-Universität Heidelberg Creighton University Rudjer Bošković Institute INFN Sezione di Padova University of Houston Lawrence Berkeley National Laboratory SUBATECH IMT Atlantique Université de Nantes CNRS-IN2P3 Department of Physics University of Oslo Institut de Physique Nucléaire d’Orsay (IPNO) Institut National de Physique Nucléaire et de Physique des Particules (IN2P3/CNRS) Université de Paris-Sud Université Paris-Saclay INFN Sezione

Measurements of anisotropic flow coefficients (vn) and their cross-correlations using two- and multiparticle cumulant methods are reported in collisions of pp at s=13 TeV, p−Pb at a center-of-mass energy per nucleon pair sNN=5.02 TeV, Xe-Xe at sNN=5.44 TeV, and Pb-Pb at sNN=5.02 TeV recorded with the ALICE detector. The multiplicity dependence of vn is studied in a very wide range from 20 to 3000 particles produced in the midrapidity region |η|<0.8 for the transverse momentum range 0.2v3>v4 is found in pp and p−Pb collisions, similar to that seen in large collision systems, while a weak v2 multiplicity dependence is observed relative to nucleus-nucleus collisions in the same multiplicity range. Using a novel subevent method, v2 measured with four-particle cumulants is found to be compatible with that from six-particle cumulants in pp and p−Pb collisions. The magnitude of the correlation between vn2 and vm2, evaluated with the symmetric cumulants SC(m,n) is observed to be positive at all multiplicities for v2 and v4, while for v2 and v3 it is negative and changes sign for multiplicities below 100, which may indicate a different vn fluctuation pattern in this multiplicity range. The observed long-range multiparticle azimuthal correlations in high multiplicity pp and p−Pb collisions can neither be described by pythia 8 nor by impact-parameter-Glasma, music, and ultrarelativistic quantum molecular dynamics model calculations, and hence, provide new insights into the understanding of collective effects in small collision systems.

关键词： Collective flow Quark-gluon plasma Relativistic heavy-ion collisions

来源：评论

学校读者我要写书评

暂无评论

Publisher Correction: Direct observation of the dead-cone effect in quantum chromodynamics

引用

Nature 2022年第7920期607卷 E22页

作者： S. Acharya Z. Ahammed P. P. Bhaduri S. Chandra S. Chattopadhyay A. K. Dubey P. Ghosh D. Kumar S. Muhuri P. Pareek S. K. Saha J. Saini N. Sarkar V. K. Singh V. Singhal S. Thakur D. Adamova J. Bielˇcikova A. Isakov A. Kotliarov F. Krizek S. Kushpil M. Šumbera A. Adler T. Janson U. Kebschull J. Adolfsson S. Basu P. Christiansen O. Matonoha A. F. Nassirpour A. Ohlson A. Oskarsson T. Richert O. V. Rueda D. Silvermyr G. Aglieri Rinella A. Alkin M. Angeletti A. Augustinus K. Barth F. Bellini L. Betev P. M. Bond F. Carnesecchi S. Chapeland V. Chibante Barroso P. Chochula M. Colocci F. Costa A. Di Mauro R. Divia G. Eulisse G. Fiorenza U. Fuchs C. Gargiulo C. Grigoras F. Grosa J. F. Grosse-Oetringhaus J. A. Hasenbichler H. Hillemanns P. Hristov J. P. Iddon G. M. Innocenti N. Jacazio J. M. Jowett A. Junique A. Kalweit M. Keil J. Klein A. Kluge P. J. Konopka V. Kuˇcera S. Kundu M. Lamanna K. Lapidus E. Laudi L. Lautner M. Lettrich M. Mager P. Martinengo A. L. Mazuecos M. Mazzilli A. Morsch T. Mrnjavac L. Musa R. N. Patra O. Pinazza M. Puccio F. Reidt W. Riegler D. Rohr J. Schukraft R. Shahoyan G. Simonetti M. Suljic A. Tauro A. Telesca S. Trogolo P. Vande Vyvre B. Volkel B. von Haller A. Wegrzynek S. C. Wenzel C. Zampolli N. Zardoshti M. Agnello A. Balbino S. Bufalino F. Catalano P. Fecchio S. Politano N. Agrawal P. Antonioli F. Cindolo G. Clai D. Hatzifotiadou A. Margotti R. Nania F. Noferini R. Preghenella S. Tripathy S. Ahmad B. Ali C. Anuj M. D. Azmi S. Khan A. Khatun M. Mohisin Khan S. U. Ahn I. Ahuja M. Bombara A. Kravˇcakova Z. Rescakova M. Vala J. Vrlakova Z. Akbar S. Sumowidagdo A. Akindinov S. Kiselev D. Mal’Kevich K. Mikhaylov S. Shirinkin R. Sultanov K. Voloshin N. Zhigareva M. Al-Turany R. Averbeck X. Bai M. B. Blidaru P. Braun-Munzinger A. Caliva M. R. Ciupek A. Dubla P. Foka C. Garabatos P. Gasik P. Giubellino R. Grosso M. K. Habib A. Harlenderova S. Hornung M. Ivanov T. Kollegger L. Kreis C. Lippmann P. Malzacher A. Marin S. Masciocchi D. Mi´skowiec C. Schmidt K. Schwarz K. Schweda I. Selyuzhenkov J. Wilkinso Variable Energy Cyclotron Centre Homi Bhabha National Institute Kolkata India Saha Institute of Nuclear Physics Homi Bhabha National Institute Kolkata India Nuclear Physics Institute of the Czech Academy of Sciences Řežu Prahy Czech Republic Faculty of Nuclear Sciences and Physical Engineering Czech Technical University in Prague Prague Czech Republic Institut fur Informatik Fachbereich Informatik und Mathematik Johann-Wolfgang-Goethe Universitat Frankfurt Frankfurt Germany Department of Physics Division of Particle Physics Lund University Lund Sweden Niels Bohr Institute University of Copenhagen Copenhagen Denmark European Organization for Nuclear Research (CERN) Geneva Switzerland Dipartimento di Fisica e Astronomia dell’Universita and Sezione INFN Bologna Italy Politecnico di Bari and Sezione INFN Bari Italy INFN Sezione di Torino Turin Italy University of Liverpool Liverpool UK Research Division and ExtreMe Matter Institute EMMI GSI Helmholtzzentrum fur Schwerionenforschung GmbH Darmstadt Germany AGH University of Science and Technology Cracow Poland National Institute of Science Education and Research Homi Bhabha National Institute Jatni India Physik Department Technische Universitat Munchen Munich Germany Physics Department University of Jammu Jammu India INFN Sezione di Bologna Bologna Italy Dipartimento di Fisica e Astronomia dell’Universita and Sezione INFN Padova Italy Dipartimento DISAT del Politecnico and Sezione INFN Turin Italy Instituto de Ciencias Nucleares Universidad Nacional Autonoma de Mexico Mexico City Mexico Department of Physics Aligarh Muslim University Aligarh India Korea Institute of Science and Technology Information Daejeon Republic of Korea Faculty of Science P.J. Šafarik University Košice Slovakia Indonesian Institute of Sciences Jakarta Indonesia NRC≫Kurchatov ≫ Institute – ITEP Moscow Russia Joint Institute for Nuclear Research (JINR) Dubna Russia University of Science and Technology of China Hefei China Nikh

来源：评论

学校读者我要写书评

暂无评论

First Observation of an Attractive Interaction between a Proton and a Cascade Baryon

引用

Physical Review Letters 2019年第11期123卷 112002-112002页

作者： S. Acharya D. Adamová S. P. Adhya A. Adler J. Adolfsson M. M. Aggarwal G. Aglieri Rinella M. Agnello N. Agrawal Z. Ahammed S. Ahmad S. U. Ahn S. Aiola A. Akindinov M. Al-Turany S. N. Alam D. S. D. Albuquerque D. Aleksandrov B. Alessandro H. M. Alfanda R. Alfaro Molina B. Ali Y. Ali A. Alici A. Alkin J. Alme T. Alt L. Altenkamper I. Altsybeev M. N. Anaam C. Andrei D. Andreou H. A. Andrews A. Andronic M. Angeletti V. Anguelov C. Anson T. Antičić F. Antinori P. Antonioli R. Anwar N. Apadula L. Aphecetche H. Appelshäuser S. Arcelli R. Arnaldi M. Arratia I. C. Arsene M. Arslandok A. Augustinus R. Averbeck S. Aziz M. D. Azmi A. Badalà Y. W. Baek S. Bagnasco R. Bailhache R. Bala A. Baldisseri M. Ball R. C. Baral R. Barbera L. Barioglio G. G. Barnaföldi L. S. Barnby V. Barret P. Bartalini K. Barth E. Bartsch F. Baruffaldi N. Bastid S. Basu G. Batigne B. Batyunya P. C. Batzing D. Bauri J. L. Bazo Alba I. G. Bearden C. Bedda N. K. Behera I. Belikov F. Bellini R. Bellwied V. Belyaev G. Bencedi S. Beole A. Bercuci Y. Berdnikov D. Berenyi R. A. Bertens D. Berzano L. Betev A. Bhasin I. R. Bhat H. Bhatt B. Bhattacharjee A. Bianchi L. Bianchi N. Bianchi J. Bielčík J. Bielčíková A. Bilandzic G. Biro R. Biswas S. Biswas J. T. Blair D. Blau C. Blume G. Boca F. Bock A. Bogdanov L. Boldizsár A. Bolozdynya M. Bombara G. Bonomi M. Bonora H. Borel A. Borissov M. Borri H. Bossi E. Botta C. Bourjau L. Bratrud P. Braun-Munzinger M. Bregant T. A. Broker M. Broz E. J. Brucken E. Bruna G. E. Bruno M. D. Buckland D. Budnikov H. Buesching S. Bufalino O. Bugnon P. Buhler P. Buncic O. Busch Z. Buthelezi J. B. Butt J. T. Buxton D. Caffarri A. Caliva E. Calvo Villar R. S. Camacho P. Camerini A. A. Capon F. Carnesecchi J. Castillo Castellanos A. J. Castro E. A. R. Casula F. Catalano C. Ceballos Sanchez P. Chakraborty S. Chandra B. Chang W. Chang S. Chapeland M. Chartier S. Chattopadhyay A. Chauvin C. Cheshkov B. Cheynis V. Chibante Barroso D. D. Chinellato S. Cho P. Chochula T. Chowdhury P. Christakoglou C. H. Christensen P. Christiansen T. Chujo C. Variable Energy Cyclotron Centre Homi Bhabha National Institute Nuclear Physics Institute of the Czech Academy of Sciences Johann-Wolfgang-Goethe Universität Frankfurt Institut für Informatik Fachbereich Informatik und Mathematik Lund University Department of Physics Division of Particle Physics Physics Department Panjab University European Organization for Nuclear Research (CERN) Dipartimento DISAT del Politecnico and Sezione INFN Centro Fermi—Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi’ Department of Physics Aligarh Muslim University Korea Institute of Science and Technology Information Yale University Institute for Theoretical and Experimental Physics Research Division and ExtreMe Matter Institute EMMI GSI Helmholtzzentrum für Schwerionenforschung GmbH Universidade Estadual de Campinas (UNICAMP) National Research Centre Kurchatov Institute INFN Sezione di Torino Central China Normal University Instituto de Física Universidad Nacional Autónoma de México COMSATS University Islamabad INFN Sezione di Bologna Dipartimento di Fisica e Astronomia dell’Università Sezione INFN Bogolyubov Institute for Theoretical Physics National Academy of Sciences of Ukraine Department of Physics and Technology University of Bergen Institut für Kernphysik Johann Wolfgang Goethe-Universität Frankfurt St. Petersburg State University Horia Hulubei National Institute of Physics and Nuclear Engineering School of Physics and Astronomy University of Birmingham Westfälische Wilhelms-Universität Münster Institut für Kernphysik Physikalisches Institut Ruprecht-Karls-Universität Heidelberg Creighton University Rudjer Bošković Institute INFN Sezione di Padova University of Houston Lawrence Berkeley National Laboratory SUBATECH IMT Atlantique Université de Nantes CNRS-IN2P3 Department of Physics University of Oslo Institut de Physique Nucléaire d’Orsay (IPNO) Institut National de Physique Nucléaire et de Physique des Particules (IN2P3/CNRS) Université de Paris-Sud Université Paris-Saclay INFN Sezione

This Letter presents the first experimental observation of the attractive strong interaction between a proton and a multistrange baryon (hyperon) Ξ−. The result is extracted from two-particle correlations of combined p−Ξ−⊕p¯−Ξ¯+ pairs measured in p−Pb collisions at sNN=5.02 TeV at the LHC with ALICE. The measured correlation function is compared with the prediction obtained assuming only an attractive Coulomb interaction and a standard deviation in the range [3.6, 5.3] is found. Since the measured p−Ξ−⊕p¯−Ξ¯+ correlation is significantly enhanced with respect to the Coulomb prediction, the presence of an additional, strong, attractive interaction is evident. The data are compatible with recent lattice calculations by the HAL-QCD Collaboration, with a standard deviation in the range [1.8, 3.7]. The lattice potential predicts a shallow repulsive Ξ− interaction within pure neutron matter and this implies stiffer equations of state for neutron-rich matter including hyperons. Implications of the strong interaction for the modeling of neutron stars are discussed.

关键词： Particle interactions

来源：评论

学校读者我要写书评

暂无评论

Application of Bayesian networks for estimation of individual psychological characteristics

arXiv

引用

arXiv 2017年

作者： Litvinenko, Alexander Litvinenko, Natalya Mamyrbayev, Orken Extreme Computing Research Center Center for Uncertainty Quantification in Computational Science & Engineering King Abdullah University of Science and Technology Thuwal23955-6900 Saudi Arabia Applied research department Institute of Mathematics and Mathematical Modeling CS MES RK Almaty Kazakhstan Institute of information and computational technologies CS MES RK Almaty Kazakhstan

An accurate qualitative and comprehensive assessment of human potential is one of the most important challenges in any company or collective. We apply Bayesian networks for developing more accurate overall estimations of psychological characteristics of an individual, based on psychological test results, which identify how much an individual possesses a certain trait. Examples of traits could be a stress resistance, the readiness to take a risk, the ability to concentrate on certain complicated work. The most common way of studying psychological characteristics of each individual is testing. Additionally, the overall estimation is usually based on personal experiences and the subjective perception of a psychologist or a group of psychologists about the investigated psychological personality traits.62C10, 62C12 Copyright © 2017, The Authors. All rights reserved.

关键词： Bayesian networks

来源：评论

学校读者我要写书评

暂无评论

Allele-defined genome of the autopolyploid sugarcane Saccharum spontaneum L (vol 50, pg 1565, 2018)

引用

NATURE GENETICS 2018年第12期50卷 1754-1754页

作者： Zhang, Jisen Zhang, Xingtan Tang, Haibao Zhang, Qing Hua, Xiuting Ma, Xiaokai Zhu, Fan Jones, Tyler Zhu, Xinguang Bowers, John Wai, Ching Man Zheng, Chunfang Shi, Yan Chen, Shuai Xu, Xiuming Yue, Jingjing Nelson, David R. Huang, Lixian Li, Zhen Xu, Huimin Zhou, Dong Wang, Yongjun Hu, Weichang Lin, Jishan Deng, Youjin Pandey, Neha Mancini, Melina Zerpa, Dessiree Nguyen, Julie K. Wang, Liming Yu, Liang Xin, Yinghui Ge, Liangfa Arro, Jie Han, Jennifer O. Chakrabarty, Setu Pushko, Marija Zhang, Wenping Ma, Yanhong Ma, Panpan Lv, Mingju Chen, Faming Zheng, Guangyong Xu, Jingsheng Yang, Zhenhui Deng, Fang Chen, Xuequn Liao, Zhenyang Zhang, Xunxiao Lin, Zhicong Lin, Hai Yan, Hansong Kuang, Zheng Zhong, Weimin Liang, Pingping Wang, Guofeng Yuan, Yuan Shi, Jiaxian Hou, Jinxiang Lin, Jingxian Jin, Jingjing Cao, Peijian Shen, Qiaochu Jiang, Qing Zhou, Ping Ma, Yaying Zhang, Xiaodan Xu, Rongrong Liu, Juan Zhou, Yongmei Jia, Haifeng Ma, Qing Qi, Rui Zhang, Zhiliang Fang, Jingping Fang, Hongkun Song, Jinjin Wang, Mengjuan Dong, Guangrui Wang, Gang Chen, Zheng Ma, Teng Liu, Hong Dhungana, Singha R. Huss, Sarah E. Yang, Xiping Sharma, Anupma Trujillo, Jhon H. Martinez, Maria C. Hudson, Matthew Riascos, John J. Schuler, Mary Chen, Li-Qing Braun, David M. Li, Lei Yu, Qingyi Wang, Jianping Wang, Kai Schatz, Michael C. Heckerman, David Van Sluys, Marie-Anne Souza, Glaucia Mendes Moore, Paul H. Sankoff, David VanBuren, Robert Paterson, Andrew H. Nagai, Chifumi Ming, Ray Fujian Agriculture and Forestry University and University of Illinois at Urbana-Champaign School of Integrative Biology Joint Center for Genomics and Biotechnology National Sugarcane Engineering Technology Research Center Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology Key Laboratory of Genetics Breeding and Multiple Utilization of Corps Ministry of Education Fujian Agriculture and Forestry University Fuzhou China Department of Plant Biology University of Illinois at Urbana-Champaign Urbana IL USA Hawaii Agriculture Research Center Kunia HI USA Institute for Plant Physiology and Ecology Chinese Academy of Sciences Shanghai China Department of Plant Biology University of Georgia Athens GA USA Department of Horticulture Michigan State University East Lansing MI USA Department of Mathematics and Statistics University of Ottawa Ottawa Ontario Canada Department of Microbiology Immunology and Biochemistry University of Tennessee HSC Memphis TN USA Chinese Academy of Sciences-Max-Planck-Gesellschaft Partner Institute for Computational Biology Chinese Academy of Sciences Shanghai China China Tobacco Gene Research Center Zhengzhou Tobacco Research Institute of CNTC Zhengzhou China Division of Biological Sciences University of Missouri Columbia MO USA Department of Agronomy University of Florida Gainesville FL USA Texas A&M AgriLife Research Texas A&M University System Dallas TX USA Centro de Investigación de la Caña de Azúcar de Colombia (Cenicaña) Cali Colombia Department of Crop Sciences University of Illinois at Urbana-Champaign Urbana IL USA Departments of Computer Science and Biology Johns Hopkins University Baltimore MD USA Microsoft Research Redmond WA USA Departamento de Botânica Instituto de Biociências Universidade de São Paulo São Paulo Brazil Departamento de Bioquímica Instituto de Química Universidade de São Paulo São Paulo Brazil

Modern sugarcanes are polyploid interspecific hybrids, combining high sugar content from Saccharum officinarum with hardiness, disease resistance and ratooning of Saccharum spontaneum. Sequencing of a haploid S. spontaneum, AP85-441, facilitated the assembly of 32 pseudo-chromosomes comprising 8 homologous groups of 4 members each, bearing 35,525 genes with alleles defined. The reduction of basic chromosome number from 10 to 8 in S. spontaneum was caused by fissions of 2 ancestral chromosomes followed by translocations to 4 chromosomes. Surprisingly, 80% of nucleotide binding site-encoding genes associated with disease resistance are located in 4 rearranged chromosomes and 51% of those in rearranged regions. Resequencing of 64 S. spontaneum genomes identified balancing selection in rearranged regions, maintaining their diversity. Introgressed S. spontaneum chromosomes in modern sugarcanes are randomly distributed in AP85-441 genome, indicating random recombination among homologs in different S. spontaneum accessions. The allele-defined Saccharum genome offers new knowledge and resources to accelerate sugarcane improvement.

关键词： Genomics Plant genetics

来源：评论

学校读者我要写书评

暂无评论

Forecasting: theory and practice

arXiv

引用

arXiv 2020年

作者： Petropoulos, Fotios Apiletti, Daniele Assimakopoulos, Vassilios Babai, Mohamed Zied Barrow, Devon K. Taieb, Souhaib Ben Bergmeir, Christoph Bessa, Ricardo J. Bijak, Jakub Boylan, John E. Browell, Jethro Carnevale, Claudio Castle, Jennifer L. Cirillo, Pasquale Clements, Michael P. Cordeiro, Clara Oliveira, Fernando Luiz Cyrino de Baets, Shari Dokumentov, Alexander Ellison, Joanne Fiszeder, Piotr Franses, Philip Hans Frazier, David T. Gilliland, Michael Gönül, M. Sinan Goodwin, Paul Grossi, Luigi Grushka-Cockayne, Yael Guidolin, Mariangela Guidolin, Massimo Gunter, Ulrich Guo, Xiaojia Guseo, Renato Harvey, Nigel Hendry, David F. Hollyman, Ross Januschowski, Tim Jeon, Jooyoung Jose, Victor Richmond R. Kang, Yanfei Koehler, Anne B. Kolassa, Stephan Kourentzes, Nikolaos Leva, Sonia Li, Feng Litsiou, Konstantia Makridakis, Spyros Martin, Gael M. Martinez, Andrew B. Meeran, Sheik Modis, Theodore Nikolopoulos, Konstantinos Önkal, Dilek Paccagnini, Alessia Panagiotelis, Anastasios Panapakidis, Ioannis Pavía, Jose M. Pedio, Manuela Pedregal, Diego J. Pinson, Pierre Ramos, Patrícia Rapach, David E. Reade, J. James Rostami-Tabar, Bahman Rubaszek, Michal Sermpinis, Georgios Shang, Han Lin Spiliotis, Evangelos Syntetos, Aris A. Talagala, Priyanga Dilini Talagala, Thiyanga S. Tashman, Len Thomakos, Dimitrios Thorarinsdottir, Thordis Todini, Ezio Arenas, Juan Ramón Trapero Wang, Xiaoqian Winkler, Robert L. Yusupova, Alisa Ziel, Florian School of Management University of Bath United Kingdom Politecnico di Torino Turin Italy Forecasting and Strategy Unit School of Electrical and Computer Engineering National Technical University of Athens Greece Kedge Business School France Department of Management Birmingham Business School University of Birmingham United Kingdom Belgium Faculty of Information Technology Monash University Melbourne Australia INESC TEC – Institute for Systems and Computer Engineering Technology and Science Porto Portugal Department of Social Statistics and Demography University of Southampton United Kingdom Centre for Marketing Analytics and Forecasting Lancaster University Management School Lancaster University United Kingdom School of Mathematics and Statistics University of Glasgow United Kingdom Department of Mechanical and Industrial Engineering University of Brescia Italy Magdalen College University of Oxford United Kingdom ZHAW School of Management and Law Zurich University of Applied Sciences Switzerland ICMA Centre Henley Business School University of Reading United Kingdom Faculdade de Ciências e Tecnologia Universidade do Algarve Portugal CEAUL Faculdade de Ciências Universidade de Lisboa Portugal Brazil Department of Business Informatics and Operations Management Faculty of Economics and Business Administration Universiteit Gent Belgium Let’s Forecast Australia Faculty of Economic Sciences and Management Nicolaus Copernicus University in Torun Poland Econometric Institute Erasmus School of Economics Rotterdam Netherlands Department of Econometrics and Business Statistics Monash University Melbourne Australia SAS United States Newcastle Business School Northumbria University Newcastle upon Tyne United Kingdom Department of Statistical Sciences University of Padua Italy Darden School of Business University of Virginia United States Finance Department Bocconi University Baffi-CAREFIN Centre Milan Italy Department of Tourism and Service Management MODUL Un

Forecasting has always been at the forefront of decision making and planning. The uncertainty that surrounds the future is both exciting and challenging, with individuals and organisations seeking to minimise risks and maximise utilities. The large number of forecasting applications calls for a diverse set of forecasting methods to tackle real-life challenges. This article provides a non-systematic review of the theory and the practice of forecasting. We provide an overview of a wide range of theoretical, state-of-the-art models, methods, principles, and approaches to prepare, produce, organise, and evaluate forecasts. We then demonstrate how such theoretical concepts are applied in a variety of real-life contexts. We do not claim that this review is an exhaustive list of methods and applications. However, we wish that our encyclopedic presentation will offer a point of reference for the rich work that has been undertaken over the last decades, with some key insights for the future of forecasting theory and practice. Given its encyclopedic nature, the intended mode of reading is non-linear. We offer cross-references to allow the readers to navigate through the various topics. We complement the theoretical concepts and applications covered by large lists of free or open-source software implementations and publicly-available databases. © 2020, CC BY.

关键词： Forecasting

来源：评论

学校读者我要写书评

暂无评论

Gaia photometric science alerts

arXiv

引用

arXiv 2021年

作者： Hodgkin, Simon Harrison, D.L. Breedt, E. Wevers, T. Rixon, G. Delgado, A. Yoldas, A. Kostrzewa-Rutkowska, Z. Wyrzykowski, L. van Leeuwen, M. Blagorodnova, N. Campbell, H. Eappachen, D. Fraser, M. Ihanec, N. Koposov, S.E. Kruszynska, K. Marton, G. Rybicki, K.A. Brown, A.G.A. Burgess, P.W. Busso, G. Cowell, S. de Angeli, F. Diener, C. Evans, D.W. Gilmore, G. Holland, G. Jonker, P.G. van Leeuwen, F. Mignard, F. Osborne, P.J. Portell, J. Prusti, T. Richards, P.J. Riello, M. Seabroke, G.M. Walton, N.A. Ábrahám, Péter Altavilla, G. Baker, S.G. Bastian, U. O’Brien, P. de Bruijne, J. Butterley, T. Carrasco, J.M. Castañeda, J. Clark, J.S. Clementini, G. Copperwheat, C.M. Cropper, M. Damljanovic, G. Davidson, M. Davis, C.J. Dennefeld, M. Dhillon, V.S. Dominik, M. Esquej, P. Eyer, L. Fabricius, C. Fridman, M. Dolding, C. Froebrich, D. Garralda, N. Gomboc, A. González-Vidal, J.J. Guerra, R. Hambly, N.C. Hardy, L.K. Holl, B. Hourihane, A. Japelj, J. Kann, D.A. Kiss, C. Knigge, C. Kolb, U. Komossa, S. Kóspál, Á. Kun, M. Leto, G. Lewis, F. Kovács, G. Littlefair, S.P. Mahabal, A.A. Mundell, C.G. Nagy, Z. Padeletti, D. Palaversa, L. Pigulski, A. Pretorius, M.L. van Reeven, W. Ribeiro, V.A.R.M. Roelens, M. Rowell, N. Schartel, N. Scholz, A. Schwope, A. Sipocz, B.M. Smartt, S.J. Smith, D. Serraller, I. Steeghs, D. Sullivan, M. Szabados, L. Szegedi-Elek, E. Tisserand, P. Tomasella, L. van Velzen, S. Whitelock, P.A. Wilson, R.W. Young, D.R. Institute of Astronomy Madingley Road CambridgeCB3 0HA United Kingdom Kavli Institute for Cosmology Institute of Astronomy Madingley Road CambridgeCB3 0HA United Kingdom European Southern Observatory Alonso de Córdova 3107 Vitacura Casilla Santiago19001 Chile RHEA Group for ESA/ESAC Urbanización Villafranca del Castillo Villanueva de la Cañada Camino bajo del Castillo s/n Madrid28692 Spain Leiden Observatory Leiden University PO Box 9513 LeidenNL-2300 RA Netherlands SRON Netherlands Institute for Space Research Sorbonnelaan 2 3584 CA Utrecht Netherlands Warsaw University Astronomical Observatory Department of Physics Al. Ujazdowskie 4 Warszawa00-478 Poland Department of Astrophysics IMAPP Radboud University P.O. Box 9010 Nijmegen6500 GL Netherlands Department of Physics Faculty of Engineering and Physical Sciences University of Surrey Guildford SurreyGU2 7XH United Kingdom School of Physics O’Brien Centre for Science North University College Dublin Belfield Dublin 4 Ireland Isaac Newton Group of Telescopes Apdo. 321 Santa Cruz de la PalmaCanary IslandsE-38700 Spain Institute for Astronomy University of Edinburgh Royal Observatory Blackford Hill EdinburghEH9 3HJ United Kingdom Konkoly Observatory Research Centre for Astronomy and Earth Sciences Eötvös Loránd Research Network Konkoly Thege 15-17 BudapestH-1121 Hungary Université Côte d’Azur Observatoire de la Côte d’Azur CNRS Laboratoire Lagrange France Martí Franquès 1 Barcelona08028 Spain Keplerlaan 1 Noordwijk2201AZ Netherlands STFC Rutherford Appleton Laboratory HarwellDidcotOX11 0QX United Kingdom Mullard Space Science Laboratory University College London Holmbury St Mary Dorking SurreyRH5 6NT United Kingdom ELTE Eötvös Loránd University Institute of Physics Pázmány Péter sétány 1/A Budapest1117 Hungary I-00078 Italy Space Science Data Center – ASI Via del Politecnico SNC RomaI-00133 Italy ARI/ZAH Heidelberg University Heidlelberg Germany School of Ph

Context. Since July 2014, the Gaia mission has been engaged in a high-spatial-resolution, time-resolved, precise, accurate astrometric, and photometric survey of the entire sky. Aims. We present the Gaia Science Alerts project, which has been in operation since 1 June 2016. We describe the system which has been developed to enable the discovery and publication of transient photometric events as seen by Gaia. Methods. We outline the data handling, timings, and performances, and we describe the transient detection algorithms and filtering procedures needed to manage the high false alarm rate. We identify two classes of events: (1) sources which are new to Gaiaand (2) Gaia sources which have undergone a significant brightening or fading. Validation of the Gaia transit astrometry and photometry was performed, followed by testing of the source environment to minimise contamination from Solar System objects, bright stars, and fainter near-neighbours. Results. We show that the Gaia Science Alerts project suffers from very low contamination, that is there are very few false-positives. We find that the external completeness for supernovae, CE = 0.46, is dominated by the Gaia scanning law and the requirement of detections from both fields-of-view. Where we have two or more scans the internal completeness is CI = 0.79 at 3 arcsec or larger from the centres of galaxies, but it drops closer in, especially within 1 arcsec. Conclusions. The per-transit photometry for Gaia transients is precise to 1 per cent at G = 13, and 3 per cent at G = 19. The per-transit astrometry is accurate to 55 milliarcseconds when compared to Gaia DR2. The Gaia Science Alerts project is one of the most homogeneous and productive transient surveys in operation, and it is the only survey which covers the whole sky at high spatial resolution (subarcsecond), including the Galactic plane and bulge. Copyright © 2021, The Authors. All rights reserved.

关键词： Surveys

来源：评论

学校读者我要写书评

暂无评论

Tests of general relativity with binary black holes from the second LIGO-Virgo gravitational-wave transient catalog

引用

Physical Review D 2021年第12期103卷 122002-122002页

作者： R. Abbott T. D. Abbott S. Abraham F. Acernese K. Ackley A. Adams C. Adams R. X. Adhikari V. B. Adya C. Affeldt M. Agathos K. Agatsuma N. Aggarwal O. D. Aguiar L. Aiello A. Ain P. Ajith S. Akcay G. Allen A. Allocca P. A. Altin A. Amato S. Anand A. Ananyeva S. B. Anderson W. G. Anderson S. V. Angelova S. Ansoldi J. M. Antelis S. Antier S. Appert K. Arai M. C. Araya J. S. Areeda M. Arène N. Arnaud S. M. Aronson K. G. Arun Y. Asali S. Ascenzi G. Ashton S. M. Aston P. Astone F. Aubin P. Aufmuth K. AultONeal C. Austin V. Avendano S. Babak F. Badaracco M. K. M. Bader S. Bae A. M. Baer S. Bagnasco J. Baird M. Ball G. Ballardin S. W. Ballmer A. Bals A. Balsamo G. Baltus S. Banagiri D. Bankar R. S. Bankar J. C. Barayoga C. Barbieri B. C. Barish D. Barker P. Barneo S. Barnum F. Barone B. Barr L. Barsotti M. Barsuglia D. Barta J. Bartlett I. Bartos R. Bassiri A. Basti M. Bawaj J. C. Bayley M. Bazzan B. R. Becher B. Bécsy V. M. Bedakihale M. Bejger I. Belahcene D. Beniwal M. G. Benjamin R. Benkel T. F. Bennett J. D. Bentley F. Bergamin B. K. Berger G. Bergmann S. Bernuzzi C. P. L. Berry D. Bersanetti A. Bertolini J. Betzwieser R. Bhandare A. V. Bhandari D. Bhattacharjee J. Bidler I. A. Bilenko G. Billingsley R. Birney O. Birnholtz S. Biscans M. Bischi S. Biscoveanu A. Bisht M. Bitossi M.-A. Bizouard J. K. Blackburn J. Blackman C. D. Blair D. G. Blair R. M. Blair O. Blanch F. Bobba N. Bode M. Boer Y. Boetzel G. Bogaert M. Boldrini F. Bondu E. Bonilla R. Bonnand P. Booker B. A. Boom S. Borhanian R. Bork V. Boschi N. Bose S. Bose V. Bossilkov V. Boudart Y. Bouffanais A. Bozzi C. Bradaschia P. R. Brady A. Bramley M. Branchesi J. E. Brau M. Breschi T. Briant J. H. Briggs F. Brighenti A. Brillet M. Brinkmann R. Brito P. Brockill A. F. Brooks J. Brooks D. D. Brown S. Brunett G. Bruno R. Bruntz A. Buikema T. Bulik H. J. Bulten A. Buonanno D. Buskulic R. L. Byer M. Cabero L. Cadonati M. Caesar G. Cagnoli C. Cahillane J. Calderón Bustillo J. D. Callaghan T. A. Callister E. Calloni J. B. Camp M. Canepa K. C. Cannon H. Cao J. Cao G. Cara LIGO California Institute of Technology Pasadena California 91125 USA Louisiana State University Baton Rouge Louisiana 70803 USA Inter-University Centre for Astronomy and Astrophysics Pune 411007 India Dipartimento di Farmacia Università di Salerno I-84084 Fisciano Salerno Italy INFN Sezione di Napoli Complesso Universitario di Monte S.Angelo I-80126 Napoli Italy OzGrav School of Physics & Astronomy Monash University Clayton 3800 Victoria Australia Christopher Newport University Newport News Virginia 23606 USA LIGO Livingston Observatory Livingston Louisiana 70754 USA OzGrav Australian National University Canberra Australian Capital Territory 0200 Australia Max Planck Institute for Gravitational Physics (Albert Einstein Institute) D-30167 Hannover Germany Leibniz Universität Hannover D-30167 Hannover Germany University of Cambridge Cambridge CB2 1TN United Kingdom Theoretisch-Physikalisches Institut Friedrich-Schiller-Universität Jena D-07743 Jena Germany University of Birmingham Birmingham B15 2TT United Kingdom Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) Northwestern University Evanston Illinois 60208 USA Instituto Nacional de Pesquisas Espaciais 12227-010 São José dos Campos São Paulo Brazil Gran Sasso Science Institute (GSSI) I-67100 L’Aquila Italy INFN Laboratori Nazionali del Gran Sasso I-67100 Assergi Italy INFN Sezione di Pisa I-56127 Pisa Italy Università di Pisa I-56127 Pisa Italy International Centre for Theoretical Sciences Tata Institute of Fundamental Research Bengaluru 560089 India NCSA University of Illinois at Urbana-Champaign Urbana Illinois 61801 USA Université de Lyon Université Claude Bernard Lyon 1 CNRS Institut Lumière Matière F-69622 Villeurbanne France University of Wisconsin-Milwaukee Milwaukee Wisconsin 53201 USA SUPA University of Strathclyde Glasgow G1 1XQ United Kingdom Dipartimento di Matematica e Informatica Università di Udine I-33100 Udine Italy INFN Sezione di Trie

Gravitational waves enable tests of general relativity in the highly dynamical and strong-field regime. Using events detected by LIGO-Virgo up to 1 October 2019, we evaluate the consistency of the data with predictions from the theory. We first establish that residuals from the best-fit waveform are consistent with detector noise, and that the low- and high-frequency parts of the signals are in agreement. We then consider parametrized modifications to the waveform by varying post-Newtonian and phenomenological coefficients, improving past constraints by factors of ∼2; we also find consistency with Kerr black holes when we specifically target signatures of the spin-induced quadrupole moment. Looking for gravitational-wave dispersion, we tighten constraints on Lorentz-violating coefficients by a factor of ∼2.6 and bound the mass of the graviton to mg≤1.76×10−23 eV/c2 with 90% credibility. We also analyze the properties of the merger remnants by measuring ringdown frequencies and damping times, constraining fractional deviations away from the Kerr frequency to δf^220=0.03−0.35+0.38 for the fundamental quadrupolar mode, and δf^221=0.04−0.32+0.27 for the first overtone; additionally, we find no evidence for postmerger echoes. Finally, we determine that our data are consistent with tensorial polarizations through a template-independent method. When possible, we assess the validity of general relativity based on collections of events analyzed jointly. We find no evidence for new physics beyond general relativity, for black hole mimickers, or for any unaccounted systematics.

关键词： Classical black holes General relativity Gravitational wave detection Gravitational waves Astronomical black holes

来源：评论

学校读者我要写书评

暂无评论

A metagenomic approach to dissect the genetic composition of enterotypes in Han Chinese and two Muslim groups

引用

Systematic and applied Microbiology 2018年第1期41卷 1-12页

作者： Li, Jing Fu, Ruiqing Yang, Yajun Horz, Hans-Peter Guan, Yaqun Lu, Yan Lou, Haiyi Tian, Lei Zheng, Shijie Liu, Hongjiao Shi, Meng Tang, Kun Wang, Sijia Xu, Shuhua Chinese Academy of Sciences (CAS) Key Laboratory of Computational Biology Max Planck Independent Research Group on Population Genomics CAS-MPG Partner Institute for Computational Biology (PICB) Shanghai Institutes for Biological Sciences CAS Shanghai 200031 China School of Life Science and Technology China Pharmaceutical University Nanjing 210009 China University of Chinese Academy of Sciences Beijing 100049 China State Key Laboratory of Genetic Engineering and Ministry of Education (MOE) Key Laboratory of Contemporary Anthropology School of Life Sciences Fudan University Shanghai 200433 China Institute of Medical Microbiology RWTH Aachen University Hospital 52074 Aachen Germany Department of Biochemistry Preclinical Medicine College XinJiang Medical University Urumqi 830011 China Department of Applied Mathematics and Statistics Johns Hopkins University Baltimore MD 21218 United States School of Life Science and Technology ShanghaiTech University Shanghai 201210 China Collaborative Innovation Center of Genetics and Development Shanghai 200438 China

AbstractDistinct enterotypes have been observed in the human gut but little is known about the genetic basis of the microbiome. Moreover, it is not clear how many genetic differences exist between enterotypes within or between populations. In this study, both the 16S rRNA gene and the metagenomes of the gut microbiota were sequenced from 48 Han Chinese, 48 Kazaks, and 96 Uyghurs, and taxonomies were assigned after de novo assembly. Single nucleotide polymorphisms were also identified by referring to data from the Human Microbiome Project. Systematic analysis of the gut communities in terms of their abundance and genetic composition was also performed, together with a genome-wide association study of the host genomes. The gut microbiota of 192 subjects was clearly classified into two enterotypes ( Bacteroides and Prevotella). Interestingly, both enterotypes showed a clear genetic differentiation in terms of their functional catalogue of genes, especially for genes involved in amino acid and carbohydrate metabolism. In addition, several differentiated genera and genes were found among the three populations. Notably, one human variant (rs878394) was identified that showed significant association with the abundance of Prevotella, which is linked to LYPLAL1, a gene associated with body fat distribution, the waist-hip ratio and insulin sensitivity. Taken together, considerable differentiation was observed in gut microbes between enterotypes and among populations that was reflected in both the taxonomic composition and the genetic makeup of their functional genes, which could have been influenced by a variety of factors, such as diet and host genetic variation.

关键词： Metagenome Next-generation sequencing 16S rRNA Enterotype Genome-wide association study

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：