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  • 1
    Publication Date: 2016-06-08
    Description: Author(s): B. Li, X. H. Luo, H. Wang, W. J. Ren, S. Yano, C.-W. Wang, J. S. Gardner, K.-D. Liss, P. Miao, S.-H. Lee, T. Kamiyama, R. Q. Wu, Y. Kawakita, and Z. D. Zhang Competition between ferromagnetic and antiferromagnetic phases on frustrated lattices in hexagonal Laves phase compound Hf 0.86 Ta 0.14 Fe 2 is investigated by using neutron diffraction as a function of temperature and magnetic fields and density-functional-theory calculations. At 325 K, the compound ord… [Phys. Rev. B 93, 224405] Published Mon Jun 06, 2016
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 2
    Publication Date: 2011-06-16
    Description: Author(s): C. H. Wang, S. N. Baker, M. D. Lumsden, S. E. Nagler, W. T. Heller, G. A. Baker, P. D. Deen, L. M. D. Cranswick, Y. Su, and A. D. Christianson We have performed unpolarized and polarized neutron diffraction experiments on monodisperse 8- and 13-nm antiferromagnetic MnO nanoparticles. For the 8-nm sample, the antiferromagnetic transition temperature T N (114 K) is suppressed compared to that in the bulk material (119 K), while for the 13-nm ... [Phys. Rev. B 83, 214418] Published Wed Jun 15, 2011
    Keywords: Magnetism
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  • 3
    Publication Date: 2016-01-21
    Description: Author(s): L. K. Zou, S. H. Wang, Y. Zhang, J. R. Sun, J. W. Cai, and S. S. Kang Spin Hall angle, which denotes the conversion efficiency between spin and charge current, is a key parameter in the pure spin current phenomenon. The search for materials with large spin Hall angle is indeed important for scientific interest and potential application in spintronics. Here the large e… [Phys. Rev. B 93, 014422] Published Thu Jan 14, 2016
    Keywords: Magnetism
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  • 4
    Publication Date: 2015-12-09
    Description: Author(s): Z. Z. Du, H. M. Liu, Y. L. Xie, Q. H. Wang, and J.-M. Liu The Casimir effect is a general phenomenon in physics, which arises when the vacuum fluctuation of an arbitrary field is modified by static or a slowly varying boundary. However, its spin version is rarely addressed, mainly due to the fact that a macroscopic boundary in quantum spin systems is hard … [Phys. Rev. B 92, 214409] Published Mon Dec 07, 2015
    Keywords: Magnetism
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  • 5
    Publication Date: 2012-08-28
    Description: Author(s): C. H. Wang, M. D. Lumsden, R. S. Fishman, G. Ehlers, T. Hong, W. Tian, H. Cao, A. Podlesnyak, C. Dunmars, J. A. Schlueter, J. L. Manson, and A. D. Christianson We have performed elastic and inelastic neutron scattering experiments on single crystal samples of the coordination polymer compound CuF 2 (H 2 O) 2 (pyz) (pyz = pyrazine) to study the magnetic structure and excitations. The elastic neutron diffraction measurements indicate a collinear antiferromagnetic ... [Phys. Rev. B 86, 064439] Published Mon Aug 27, 2012
    Keywords: Magnetism
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  • 6
    Publication Date: 2011-12-10
    Description: Author(s): L. Ma (马丽), W. H. Wang (王文洪), C. M. Zhen (甄聪棉), D. L. Hou (侯登录), X. D. Tang (唐晓丹), E. K. Liu (刘恩克), and G. H. Wu (吴光恒) [Phys. Rev. B 84, 224404] Published Fri Dec 09, 2011
    Keywords: Magnetism
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  • 7
    Publication Date: 2009-12-17
    Description: Using next-generation sequencing technology alone, we have successfully generated and assembled a draft sequence of the giant panda genome. The assembled contigs (2.25 gigabases (Gb)) cover approximately 94% of the whole genome, and the remaining gaps (0.05 Gb) seem to contain carnivore-specific repeats and tandem repeats. Comparisons with the dog and human showed that the panda genome has a lower divergence rate. The assessment of panda genes potentially underlying some of its unique traits indicated that its bamboo diet might be more dependent on its gut microbiome than its own genetic composition. We also identified more than 2.7 million heterozygous single nucleotide polymorphisms in the diploid genome. Our data and analyses provide a foundation for promoting mammalian genetic research, and demonstrate the feasibility for using next-generation sequencing technologies for accurate, cost-effective and rapid de novo assembly of large eukaryotic genomes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3951497/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3951497/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Ruiqiang -- Fan, Wei -- Tian, Geng -- Zhu, Hongmei -- He, Lin -- Cai, Jing -- Huang, Quanfei -- Cai, Qingle -- Li, Bo -- Bai, Yinqi -- Zhang, Zhihe -- Zhang, Yaping -- Wang, Wen -- Li, Jun -- Wei, Fuwen -- Li, Heng -- Jian, Min -- Li, Jianwen -- Zhang, Zhaolei -- Nielsen, Rasmus -- Li, Dawei -- Gu, Wanjun -- Yang, Zhentao -- Xuan, Zhaoling -- Ryder, Oliver A -- Leung, Frederick Chi-Ching -- Zhou, Yan -- Cao, Jianjun -- Sun, Xiao -- Fu, Yonggui -- Fang, Xiaodong -- Guo, Xiaosen -- Wang, Bo -- Hou, Rong -- Shen, Fujun -- Mu, Bo -- Ni, Peixiang -- Lin, Runmao -- Qian, Wubin -- Wang, Guodong -- Yu, Chang -- Nie, Wenhui -- Wang, Jinhuan -- Wu, Zhigang -- Liang, Huiqing -- Min, Jiumeng -- Wu, Qi -- Cheng, Shifeng -- Ruan, Jue -- Wang, Mingwei -- Shi, Zhongbin -- Wen, Ming -- Liu, Binghang -- Ren, Xiaoli -- Zheng, Huisong -- Dong, Dong -- Cook, Kathleen -- Shan, Gao -- Zhang, Hao -- Kosiol, Carolin -- Xie, Xueying -- Lu, Zuhong -- Zheng, Hancheng -- Li, Yingrui -- Steiner, Cynthia C -- Lam, Tommy Tsan-Yuk -- Lin, Siyuan -- Zhang, Qinghui -- Li, Guoqing -- Tian, Jing -- Gong, Timing -- Liu, Hongde -- Zhang, Dejin -- Fang, Lin -- Ye, Chen -- Zhang, Juanbin -- Hu, Wenbo -- Xu, Anlong -- Ren, Yuanyuan -- Zhang, Guojie -- Bruford, Michael W -- Li, Qibin -- Ma, Lijia -- Guo, Yiran -- An, Na -- Hu, Yujie -- Zheng, Yang -- Shi, Yongyong -- Li, Zhiqiang -- Liu, Qing -- Chen, Yanling -- Zhao, Jing -- Qu, Ning -- Zhao, Shancen -- Tian, Feng -- Wang, Xiaoling -- Wang, Haiyin -- Xu, Lizhi -- Liu, Xiao -- Vinar, Tomas -- Wang, Yajun -- Lam, Tak-Wah -- Yiu, Siu-Ming -- Liu, Shiping -- Zhang, Hemin -- Li, Desheng -- Huang, Yan -- Wang, Xia -- Yang, Guohua -- Jiang, Zhi -- Wang, Junyi -- Qin, Nan -- Li, Li -- Li, Jingxiang -- Bolund, Lars -- Kristiansen, Karsten -- Wong, Gane Ka-Shu -- Olson, Maynard -- Zhang, Xiuqing -- Li, Songgang -- Yang, Huanming -- Wang, Jian -- Wang, Jun -- R01 HG003229/HG/NHGRI NIH HHS/ -- R01 HG003229-05/HG/NHGRI NIH HHS/ -- England -- Nature. 2010 Jan 21;463(7279):311-7. doi: 10.1038/nature08696. Epub 2009 Dec 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉BGI-Shenzhen, Shenzhen 518083, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20010809" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Animals ; China ; Conserved Sequence/genetics ; Contig Mapping ; Diet/veterinary ; Dogs ; Evolution, Molecular ; Female ; Fertility/genetics/physiology ; Genome/*genetics ; *Genomics ; Heterozygote ; Humans ; Multigene Family/genetics ; Polymorphism, Single Nucleotide/genetics ; Receptors, G-Protein-Coupled/genetics ; Sequence Alignment ; Sequence Analysis, DNA ; Synteny/genetics ; Ursidae/classification/*genetics/physiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2009-05-05
    Description: Culture is typically viewed as consisting of traits inherited epigenetically, through social learning. However, cultural diversity has species-typical constraints, presumably of genetic origin. A celebrated, if contentious, example is whether a universal grammar constrains syntactic diversity in human languages. Oscine songbirds exhibit song learning and provide biologically tractable models of culture: members of a species show individual variation in song and geographically separated groups have local song dialects. Different species exhibit distinct song cultures, suggestive of genetic constraints. Without such constraints, innovations and copying errors should cause unbounded variation over multiple generations or geographical distance, contrary to observations. Here we report an experiment designed to determine whether wild-type song culture might emerge over multiple generations in an isolated colony founded by isolates, and, if so, how this might happen and what type of social environment is required. Zebra finch isolates, unexposed to singing males during development, produce song with characteristics that differ from the wild-type song found in laboratory or natural colonies. In tutoring lineages starting from isolate founders, we quantified alterations in song across tutoring generations in two social environments: tutor-pupil pairs in sound-isolated chambers and an isolated semi-natural colony. In both settings, juveniles imitated the isolate tutors but changed certain characteristics of the songs. These alterations accumulated over learning generations. Consequently, songs evolved towards the wild-type in three to four generations. Thus, species-typical song culture can appear de novo. Our study has parallels with language change and evolution. In analogy to models in quantitative genetics, we model song culture as a multigenerational phenotype partly encoded genetically in an isolate founding population, influenced by environmental variables and taking multiple generations to emerge.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2693086/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2693086/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Feher, Olga -- Wang, Haibin -- Saar, Sigal -- Mitra, Partha P -- Tchernichovski, Ofer -- R01 DC004722/DC/NIDCD NIH HHS/ -- R01 DC004722-09/DC/NIDCD NIH HHS/ -- England -- Nature. 2009 May 28;459(7246):564-8. doi: 10.1038/nature07994. Epub 2009 May 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, City College, City University of New York, New York 10031, USA. olcifeher@gmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19412161" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; *Culture ; Female ; Finches/*physiology ; Instinct ; Learning/physiology ; Male ; *Models, Biological ; Social Isolation ; Vocalization, Animal/*physiology
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  • 9
    Publication Date: 2009-12-18
    Description: In the established model of mammalian cell cycle control, the retinoblastoma protein (Rb) functions to restrict cells from entering S phase by binding and sequestering E2f activators (E2f1, E2f2 and E2f3), which are invariably portrayed as the ultimate effectors of a transcriptional program that commit cells to enter and progress through S phase. Using a panel of tissue-specific cre-transgenic mice and conditional E2f alleles we examined the effects of E2f1, E2f2 and E2f3 triple deficiency in murine embryonic stem cells, embryos and small intestines. We show that in normal dividing progenitor cells E2f1-3 function as transcriptional activators, but contrary to the current view, are dispensable for cell division and instead are necessary for cell survival. In differentiating cells E2f1-3 function in a complex with Rb as repressors to silence E2f targets and facilitate exit from the cell cycle. The inactivation of Rb in differentiating cells resulted in a switch of E2f1-3 from repressors to activators, leading to the superactivation of E2f responsive targets and ectopic cell divisions. Loss of E2f1-3 completely suppressed these phenotypes caused by Rb deficiency. This work contextualizes the activator versus repressor functions of E2f1-3 in vivo, revealing distinct roles in dividing versus differentiating cells and in normal versus cancer-like cell cycles.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2806193/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2806193/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chong, Jean-Leon -- Wenzel, Pamela L -- Saenz-Robles, M Teresa -- Nair, Vivek -- Ferrey, Antoney -- Hagan, John P -- Gomez, Yorman M -- Sharma, Nidhi -- Chen, Hui-Zi -- Ouseph, Madhu -- Wang, Shu-Huei -- Trikha, Prashant -- Culp, Brian -- Mezache, Louise -- Winton, Douglas J -- Sansom, Owen J -- Chen, Danian -- Bremner, Rod -- Cantalupo, Paul G -- Robinson, Michael L -- Pipas, James M -- Leone, Gustavo -- 5 T32 CA106196-04/CA/NCI NIH HHS/ -- CA098956/CA/NCI NIH HHS/ -- P01CA097189/CA/NCI NIH HHS/ -- R01 CA098956/CA/NCI NIH HHS/ -- R01 CA098956-06A2/CA/NCI NIH HHS/ -- R01CA82259/CA/NCI NIH HHS/ -- R01CA85619/CA/NCI NIH HHS/ -- R01HD04470/HD/NICHD NIH HHS/ -- England -- Nature. 2009 Dec 17;462(7275):930-4. doi: 10.1038/nature08677.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Virology, Immunology and Medical Genetics, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20016602" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Apoptosis ; Cell Cycle/genetics/physiology ; *Cell Differentiation ; Cell Proliferation ; E2F Transcription Factors/deficiency/genetics/*metabolism ; E2F1 Transcription Factor/deficiency/genetics/metabolism ; E2F2 Transcription Factor/deficiency/genetics/metabolism ; E2F3 Transcription Factor/deficiency/genetics/metabolism ; Embryo, Mammalian/cytology/metabolism ; Embryonic Stem Cells/*cytology/*metabolism ; Female ; *Gene Expression Regulation ; Intestine, Small/cytology/metabolism ; Mice ; Mice, Transgenic ; Repressor Proteins/deficiency/genetics/*metabolism ; Retinoblastoma Protein/deficiency/metabolism
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  • 10
    Publication Date: 2009-07-10
    Description: Variable, diversity and joining gene segment (V(D)J) recombination assembles immunoglobulin heavy or light chain (IgH or IgL) variable region exons in developing bone marrow B cells, whereas class switch recombination (CSR) exchanges IgH constant region exons in peripheral B cells. Both processes use directed DNA double-strand breaks (DSBs) repaired by non-homologous end-joining (NHEJ). Errors in either V(D)J recombination or CSR can initiate chromosomal translocations, including oncogenic IgH locus (Igh) to c-myc (also known as Myc) translocations of peripheral B cell lymphomas. Collaboration between these processes has also been proposed to initiate translocations. However, the occurrence of V(D)J recombination in peripheral B cells is controversial. Here we show that activated NHEJ-deficient splenic B cells accumulate V(D)J-recombination-associated breaks at the lambda IgL locus (Igl), as well as CSR-associated Igh breaks, often in the same cell. Moreover, Igl and Igh breaks are frequently joined to form translocations, a phenomenon associated with specific Igh-Igl co-localization. Igh and c-myc also co-localize in these cells; correspondingly, the introduction of frequent c-myc DSBs robustly promotes Igh-c-myc translocations. Our studies show peripheral B cells that attempt secondary V(D)J recombination, and determine a role for mechanistic factors in promoting recurrent translocations in tumours.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2907259/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2907259/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Jing H -- Gostissa, Monica -- Yan, Catherine T -- Goff, Peter -- Hickernell, Thomas -- Hansen, Erica -- Difilippantonio, Simone -- Wesemann, Duane R -- Zarrin, Ali A -- Rajewsky, Klaus -- Nussenzweig, Andre -- Alt, Frederick W -- 5P01CA92625/CA/NCI NIH HHS/ -- P01 CA092625/CA/NCI NIH HHS/ -- P01 CA092625-010001/CA/NCI NIH HHS/ -- P01 CA092625-020001/CA/NCI NIH HHS/ -- P01 CA092625-060006/CA/NCI NIH HHS/ -- P01 CA092625-070006/CA/NCI NIH HHS/ -- P01 CA092625-080006/CA/NCI NIH HHS/ -- P01 CA092625-090006/CA/NCI NIH HHS/ -- R01 AI077595/AI/NIAID NIH HHS/ -- R01 AI077595-02/AI/NIAID NIH HHS/ -- T32 CA009382/CA/NCI NIH HHS/ -- T32 CA009382-27/CA/NCI NIH HHS/ -- T32 CA009382-28/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- Intramural NIH HHS/ -- England -- Nature. 2009 Jul 9;460(7252):231-6. doi: 10.1038/nature08159.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19587764" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*metabolism ; Cytidine Deaminase/deficiency/genetics/metabolism ; DNA Breaks, Double-Stranded ; DNA-Binding Proteins/deficiency/metabolism ; Female ; Gene Rearrangement, B-Lymphocyte/*genetics ; Genes, Immunoglobulin/*genetics ; Genes, myc/genetics ; Homeodomain Proteins/metabolism ; Immunoglobulin Class Switching/*genetics ; Immunoglobulin Heavy Chains/genetics ; Immunoglobulin kappa-Chains/genetics ; Immunoglobulin lambda-Chains/genetics ; Integrases/genetics/metabolism ; Interphase ; Lymphocyte Activation ; Male ; Mice ; Receptors, Complement 3d/genetics ; Recombination, Genetic/genetics ; Spleen/cytology/immunology ; Translocation, Genetic/*genetics
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