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  • Articles  (585)
  • Physical Review Letters  (36)
  • Royal Society Open Science  (16)
  • G3: Genes, Genomes, Genetics  (14)
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  • Articles  (585)
  • 1
    Publication Date: 2016-07-13
    Description: Author(s): N. C. Plumb, D. J. Gawryluk, Y. Wang, Z. Ristić, J. Park, B. Q. Lv, Z. Wang, C. E. Matt, N. Xu, T. Shang, K. Conder, J. Mesot, S. Johnston, M. Shi, and M. Radović We investigate the band structure of BaBiO 3 , an insulating parent compound of doped high- T c superconductors, using in situ angle-resolved photoemission spectroscopy on thin films. The data compare favorably overall with density functional theory calculations within the local density approximation, d… [Phys. Rev. Lett. 117, 037002] Published Tue Jul 12, 2016
    Keywords: Condensed Matter: Electronic Properties, etc.
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
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  • 2
    Publication Date: 2014-12-16
    Description: Japanese flounder ( Paralichthys olivaceus ) is one of the economic important fish in China. Sexual dimorphism, especially the different growth rates and body sizes between two sexes, makes this fish a good model to investigate mechanisms responsible for such dimorphism for both fundamental questions in evolution and applied topics in aquaculture. However, the lack of "omics" data has hindered the process. The recent advent of RNA-sequencing technology provides a robust tool to further study characteristics of genomes of nonmodel species. Here, we performed de novo transcriptome sequencing for a double haploid Japanese flounder individual using Illumina sequencing. A single lane of paired-end sequencing produced more than 27 million reads. These reads were assembled into 107,318 nonredundant transcripts, half of which (51,563; 48.1%) were annotated by blastx to public protein database. A total of 1051 genes that had potential alternative splicings were detected by Chrysalis implemented in Trinity software. Four of 10 randomly picked genes were verified truly containing alternative splicing by cloning and Sanger sequencing. Notably, using a doubled haploid Japanese flounder individual allow us to analyze gene duplicates. In total, 3940 "single-nucleotide polymorphisms" were detected form 1859 genes, which may have happened gene duplicates. This study lays the foundation for structural and functional genomics studies in Japanese flounder.
    Electronic ISSN: 2160-1836
    Topics: Biology
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  • 3
    Publication Date: 2018-07-26
    Description: The great amount of solid particles contained in a weighting agent is a major cause of the problems in both rheology properties and damage control mechanism of an oil-based drilling fluid (OBM). Therefore, a proper type of weighting agent can be a solution for the application of OBM. In this study, three weighting agents that have been commonly used with OBM, namely, standard barite, submicron barite and superfine manganese ore, are studied. Rheological properties of OBM and the degree of formation damage are assessed with regard to the three weighting agents. The agents are also studied in aspects of particle size, micromorphology, filtration loss and wall-building property, acid dissolution efficiency of mud cake, lubricity and sedimentation stability to analyse the effects of the agents on rheological properties and the degree of damage as well as to figure out the mechanism of rheology control and damage control. For the OBM, there is a mutual effect between rheological stability and the degree of damage. In consideration of the agents' properties, we can enhance the rheological stability of the OBM and control the degree of formation damage by properly selecting particle size, using acid-soluble materials and forming the mud cake with ultra-low permeability that can easily be cleared away.
    Keywords: energy, chemical engineering
    Electronic ISSN: 2054-5703
    Topics: Natural Sciences in General
    Published by Royal Society
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  • 4
    Publication Date: 2016-04-09
    Description: Author(s): Y. P. Wu, D. Zhao, A. F. Wang, N. Z. Wang, Z. J. Xiang, X. G. Luo, T. Wu, and X. H. Chen Here, we experimentally study the origin of d -electron heavy fermion (HF) behavior in iron-based superconductors (FeSCs) A Fe 2 As 2 ( A = K , Rb, Cs). Nuclear magnetic resonance on As 75 reveals a universal coherent-incoherent crossover with a characteristic temperature T * . Below T * , a so-called “Knight shi… [Phys. Rev. Lett. 116, 147001] Published Thu Apr 07, 2016
    Keywords: Condensed Matter: Electronic Properties, etc.
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
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  • 5
    Publication Date: 2018-07-26
    Description: A series of corrosion problems caused by high-temperature, high-pressure and high-acid gas environments has been an issue in oil and gas production for a long time. During the development of a high-acid gas field, the petroleum pipe is subjected to many aspects of corrosion, and the corrosion mechanism is complicated by the condition of the coexistence of H 2 S/CO 2 . Based on the study of the corrosion problem associated with the formate packer fluid in Southwest China, three kinds of steels were studied for corrosion prevention in the alloy G3/N80 steel/TP110SS steel. The study shows that the corrosion rate of the formate packer fluid is low, but corrosion is severe in environments characterized by high temperatures, high pressures and high-acid gas contents. Based on the consideration of cost and the difficulty of realization, an anti-corrosion system was constructed based on the existing packer fluid, mainly through the introduction of a variety of anti-corrosion additives. Through the selection of various additives and corrosion experiments, a corrosion protection system of formate packer fluid was developed. Corrosion tests show that the corrosion rate of the system must be less than 0.076 mm yr –1 to achieve the purpose of corrosion protection. The formate packer fluid with corrosion protection can meet the needs of the current application.
    Keywords: materials science, energy, chemical engineering
    Electronic ISSN: 2054-5703
    Topics: Natural Sciences in General
    Published by Royal Society
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  • 6
    Publication Date: 2015-02-07
    Description: The internode length above the uppermost ear (ILAU) is an important influencing factor for canopy architecture in maize. Analyzing the genetic characteristics of internode length is critical for improving plant population structure and increasing photosynthetic efficiency. However, the genetic control of ILAU has not been determined. In this study, quantitative trait loci (QTL) for internode length at five positions above the uppermost ear were identified using four sets of recombinant inbred line (RIL) populations in three environments. Genetic maps and initial QTL were integrated using meta-analyses across the four populations. Seventy QTL were identified: 16 in population 1; 14 in population 2; 25 in population 3; and 15 in population 4. Individual effects ranged from 5.36% to 26.85% of phenotypic variation, with 27 QTL 〉10%. In addition, the following common QTL were identified across two populations: one common QTL for the internode length of all five positions; one common QTL for the internode length of three positions; and one common QTL for the internode length of one position. In addition, four common QTL for the internode length of four positions were identified in one population. The results indicated that the ILAU at different positions above the uppermost ear could be affected by one or several of the same QTL. The traits may also be regulated by many different QTL. Of the 70 initial QTL, 46 were integrated in 14 meta-QTL (mQTLs) by meta-analysis, and 17 of the 27 initial QTL with R 2  〉10% were integrated in 7 mQTLs. Four of the key mQTLs (mQTL2-2, mQTL3-2, mQTL5-1, mQTL5-2, and mQTL9) in which the initial QTL displayed R 2 〉10% included four to 11 initial QTL for an internode length of four to five positions from one or two populations. These results may provide useful information for marker-assisted selection to improve canopy architecture.
    Electronic ISSN: 2160-1836
    Topics: Biology
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  • 7
    Publication Date: 2016-04-28
    Description: Recent works revealed that the energy required to control a complex network depends on the number of driving signals and the energy distribution follows an algebraic scaling law. If one implements control using a small number of drivers, e.g. as determined by the structural controllability theory, there is a high probability that the energy will diverge. We develop a physical theory to explain the scaling behaviour through identification of the fundamental structural elements, the longest control chains (LCCs), that dominate the control energy. Based on the LCCs, we articulate a strategy to drastically reduce the control energy (e.g. in a large number of real-world networks). Owing to their structural nature, the LCCs may shed light on energy issues associated with control of nonlinear dynamical networks.
    Keywords: mathematical physics, complexity
    Electronic ISSN: 2054-5703
    Topics: Natural Sciences in General
    Published by Royal Society
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  • 8
    Publication Date: 2016-08-06
    Description: Author(s): Z. Wang et al. (MINERvA Collaboration) Neutrino-induced charged-current coherent kaon production ν μ A → μ − K + A is a rare, inelastic electroweak process that brings a K + on shell and leaves the target nucleus intact in its ground state. This process is significantly lower in rate than the neutrino-induced charged-current coherent pion product… [Phys. Rev. Lett. 117, 061802] Published Fri Aug 05, 2016
    Keywords: Elementary Particles and Fields
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
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  • 9
    Publication Date: 2016-07-08
    Description: OsWUS has recently been shown to be a transcription factor gene critical for tiller development and fertility in rice. The OsWUS protein consists of three conserved structural domains, but their biological functions are still unclear. We discovered a new rice mutant resulting from tissue culture, which hardly produced tillers and exhibited complete female sterility. The male and female floral organs of the mutant were morphologically indistinguishable from those of the wild type. We named the mutant srt1 for completely s terile and r educed t illering 1. Map-based cloning revealed that the mutant phenotypes were caused by a mutation in OsWUS . Compared with the two previously reported null allelic mutants of OsWUS ( tab1-1 and moc3-1 ), which could produce partial N-terminal peptides of OsWUS, the srt1 protein contained a deletion of only seven amino acids within the conserved homeobox domain of OsWUS. However, the mutant phenotypes (monoculm and female sterility) displayed in srt1 were as typical and severe as those in tab1-1 and moc3-1 . This indicates that the homeobox domain of SRT1 is essential for the regulation of tillering and sterility in rice. In addition, srt1 showed an opposite effect on panicle development to that of the two null allelic mutants, implying that the srt1 protein might still have partial or even new functions on panicle development. The results of this study suggest that the homeobox domain is pivotal for OsWUS function.
    Electronic ISSN: 2160-1836
    Topics: Biology
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  • 10
    Publication Date: 2016-03-26
    Description: Author(s): P. Dey, J. Paul, Z. Wang, C. E. Stevens, C. Liu, A. H. Romero, J. Shan, D. J. Hilton, and D. Karaiskaj We systematically investigate the excitonic dephasing of three representative transition-metal dichalcogenides, namely, MoS 2 , MoSe 2 , and WSe 2 atomic monolayer thick and bulk crystals, in order to gain a proper understanding of the factors that determine the optical coherence in these materials. Cohe… [Phys. Rev. Lett. 116, 127402] Published Fri Mar 25, 2016
    Keywords: Condensed Matter: Electronic Properties, etc.
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
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