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  • 1
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    Quantum critical point and unusual phase diagram in the itinerant-electron metamagnet UCoAl (2015)
    American Physical Society (APS)
    Details
    Publication Date: 2015-07-05
    Description: Author(s): N. Kimura, N. Kabeya, H. Aoki, K. Ohyama, M. Maeda, H. Fujii, M. Kogure, T. Asai, T. Komatsubara, T. Yamamura, and I. Satoh We present the temperature–pressure–magnetic-field phase diagram of the itinerant-electron metamagnet UCoAl determined from the ac susceptibility measurement. The quantum critical point (QCP) was found to be located at 2.9 ± 0.2  GPa ( ≡ P QCP ) and 130 ± 5 kOe. In addition to the determination of the phase … [Phys. Rev. B 92, 035106] Published Thu Jul 02, 2015
    Keywords: Electronic structure and strongly correlated systems
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 2
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    Characterization of compact-toroid injection during formation, translation, and field penetration (2016)
    American Institute of Physics (AIP)
    Details
    Publication Date: 2016-07-23
    Description: We have developed a compact toroid (CT) injector system for particle refueling of the advanced beam-driven C-2U field-reversed configuration (FRC) plasma. The CT injector is a magnetized coaxial plasma gun (MCPG), and the produced CT must cross the perpendicular magnetic field surrounding the FRC for the refueling of C-2U. To simulate this environment, an experimental test stand has been constructed. A transverse magnetic field of ∼1 kG is established, which is comparable to the C-2U axial magnetic field in the confinement section, and CTs are fired across it. On the test stand we have been characterizing and studying CT formation, ejection/translation from the MCPG, and penetration into transverse magnetic fields.
    Print ISSN: 0034-6748
    Electronic ISSN: 1089-7623
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Published by American Institute of Physics (AIP)
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  • 3
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    Analysis of base-pairing probabilities of RNA molecules involved in protein-RNA interactions (2013)
    Oxford University Press
    Details
    Publication Date: 2013-10-04
    Description: Motivation: Understanding the details of protein–RNA interactions is important to reveal the functions of both the RNAs and the proteins. In these interactions, the secondary structures of the RNAs play an important role. Because RNA secondary structures in protein–RNA complexes are variable, considering the ensemble of RNA secondary structures is a useful approach. In particular, recent studies have supported the idea that, in the analysis of RNA secondary structures, the base-pairing probabilities (BPPs) of RNAs (i.e. the probabilities of forming a base pair in the ensemble of RNA secondary structures) provide richer and more robust information about the structures than a single RNA secondary structure, for example, the minimum free energy structure or a snapshot of structures in the Protein Data Bank. However, there has been no investigation of the BPPs in protein–RNA interactions. Results: In this study, we analyzed BPPs of RNA molecules involved in known protein–RNA complexes in the Protein Data Bank. Our analysis suggests that, in the tertiary structures, the BPPs (which are computed using only sequence information) for unpaired nucleotides with intermolecular hydrogen bonds (hbonds) to amino acids were significantly lower than those for unpaired nucleotides without hbonds. On the other hand, no difference was found between the BPPs for paired nucleotides with and without intermolecular hbonds. Those findings were commonly supported by three probabilistic models, which provide the ensemble of RNA secondary structures, including the McCaskill model based on Turner’s free energy of secondary structures. Contact: iwakiri@cb.k.u-tokyo.ac.jp or mhamada@cb.k.u-tokyo.ac.jp Supplementary information: Supplementary data are available at Bioinformatics online.
    Print ISSN: 1367-4803
    Electronic ISSN: 1460-2059
    Topics: Biology , Computer Science , Medicine
    Published by Oxford University Press
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  • 4
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    Development of a magnetized coaxial plasma gun for compact toroid injection into the C-2 field-reversed configuration device (2016)
    American Institute of Physics (AIP)
    Details
    Publication Date: 2016-06-01
    Description: A compact toroid (CT) injector was developed for the C-2 device, primarily for refueling of field-reversed configurations. The CTs are formed by a magnetized coaxial plasma gun (MCPG), which consists of coaxial cylindrical electrodes and a bias coil for creating a magnetic field. First, a plasma ring is generated by a discharge between the electrodes and is accelerated by Lorenz self-force. Then, the plasma ring is captured by an interlinkage flux (poloidal flux). Finally, the fully formed CT is ejected from the MCPG. The MCPG described herein has two gas injection ports that are arranged tangentially on the outer electrode. A tungsten-coated inner electrode has a head which can be replaced with a longer one to extend the length of the acceleration region for the CT. The developed MCPG has achieved supersonic CT velocities of ∼100 km/s. Plasma parameters for electron density, electron temperature, and the number of particles are ∼5 × 10 21 m −3 , ∼40 eV, and 0.5–1.0 × 10 19 , respectively.
    Print ISSN: 0034-6748
    Electronic ISSN: 1089-7623
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Published by American Institute of Physics (AIP)
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  • 5
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    DAFS: simultaneous aligning and folding of RNA sequences via dual decomposition (2012)
    Oxford University Press
    Details
    Publication Date: 2012-12-08
    Description: Motivation: It is well known that the accuracy of RNA secondary structure prediction from a single sequence is limited, and thus a comparative approach that predicts a common secondary structure from aligned sequences is a better choice if homologous sequences with reliable alignments are available. However, correct secondary structure information is needed to produce reliable alignments of RNA sequences. To tackle this dilemma, we require a fast and accurate aligner that takes structural information into consideration to yield reliable structural alignments, which are suitable for common secondary structure prediction. Results: We develop DAFS , a novel algorithm that simultaneously aligns and folds RNA sequences based on maximizing expected accuracy of a predicted common secondary structure and its alignment. DAFS decomposes the pairwise structural alignment problem into two independent secondary structure prediction problems and one pairwise (non-structural) alignment problem by the dual decomposition technique, and maintains the consistency of a pairwise structural alignment by imposing penalties on inconsistent base pairs and alignment columns that are iteratively updated. Furthermore, we extend DAFS to consider pseudoknots in RNA structural alignments by integrating IPknot for predicting a pseudoknotted structure. The experiments on publicly available datasets showed that DAFS can produce reliable structural alignments from unaligned sequences in terms of accuracy of common secondary structure prediction. Availability: The program of DAFS and the datasets are available at http://www.ncrna.org/software/dafs/ . Contact: satoken@bio.keio.ac.jp Supplementary information: Supplementary data are available at Bioinformatics online.
    Print ISSN: 1367-4803
    Electronic ISSN: 1460-2059
    Topics: Biology , Computer Science , Medicine
    Published by Oxford University Press
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  • 6
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    The leukemogenicity of AML1-ETO is dependent on site-specific lysine acetylation (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-07-19
    Description: The chromosomal translocations found in acute myelogenous leukemia (AML) generate oncogenic fusion transcription factors with aberrant transcriptional regulatory properties. Although therapeutic targeting of most leukemia fusion proteins remains elusive, the posttranslational modifications that control their function could be targetable. We found that AML1-ETO, the fusion protein generated by the t(8;21) translocation, is acetylated by the transcriptional coactivator p300 in leukemia cells isolated from t(8;21) AML patients, and that this acetylation is essential for its self-renewal-promoting effects in human cord blood CD34(+) cells and its leukemogenicity in mouse models. Inhibition of p300 abrogates the acetylation of AML1-ETO and impairs its ability to promote leukemic transformation. Thus, lysine acetyltransferases represent a potential therapeutic target in AML.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3251012/" 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/PMC3251012/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Lan -- Gural, Alexander -- Sun, Xiao-Jian -- Zhao, Xinyang -- Perna, Fabiana -- Huang, Gang -- Hatlen, Megan A -- Vu, Ly -- Liu, Fan -- Xu, Haiming -- Asai, Takashi -- Xu, Hao -- Deblasio, Tony -- Menendez, Silvia -- Voza, Francesca -- Jiang, Yanwen -- Cole, Philip A -- Zhang, Jinsong -- Melnick, Ari -- Roeder, Robert G -- Nimer, Stephen D -- GM62437/GM/NIGMS NIH HHS/ -- R01 GM062437/GM/NIGMS NIH HHS/ -- R01 GM062437-12/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2011 Aug 5;333(6043):765-9. doi: 10.1126/science.1201662. Epub 2011 Jul 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Pharmacology and Chemistry Program, Sloan-Kettering Institute, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21764752" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Animals ; Cell Line ; Cell Line, Tumor ; *Cell Transformation, Neoplastic ; Core Binding Factor Alpha 2 Subunit/chemistry/*metabolism ; E1A-Associated p300 Protein/antagonists & inhibitors/*metabolism ; Fetal Blood/cytology ; Gene Expression Profiling ; Hematopoietic Stem Cells/*cytology/physiology ; Humans ; Leukemia, Myeloid, Acute/*metabolism/pathology ; Lysine/*metabolism ; Mice ; Mice, Inbred C57BL ; Mutant Proteins/metabolism ; Oncogene Proteins, Fusion/chemistry/*metabolism ; Preleukemia/metabolism/pathology ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Processing, Post-Translational ; Transcriptional Activation ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 7
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    Factors influencing the start of development in Daphnia pulex winter eggs [Translation from: Biological Reviews Vol. 13, 24-26, 1951] (2021)
    Freshwater Biological Association | Windermere, UK
    In:  http://aquaticcommons.org/id/eprint/5030 | 1256 | 2011-09-29 15:31:52 | 5030 | Freshwater Biological Association
    Details
    Publication Date: 2021-07-08
    Description: The winter eggs of Daphnia pulex, after passing safely through the winter , develop and hatch in the spring, multiplying by themselves, while some males emerging among them with the changes in environment produce fertile eggs, which are universally known as winter eggs . This study researches the factors governing the development of winter eggs through experiments.
    Description: Translated from Japanese into English
    Keywords: Biology ; Ecology ; Limnology ; Freshwater crustaceans ; Resting stages ; Temperature effects ; Daphnia pulex
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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  • 8
    Electronic Resource
    Electronic Resource
    Casting of Aluminum Alloy Bar by Semisolid Roll Casting (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 141-143 (July 2008), p. 295-300 
    Details
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Notes: Rheo-casting of 4045 aluminum alloy bar was operated using an unequal diameter twin rollcaster and a cooling slope. The semisolid slurry was made by the cooling slope. The thickness of thebar was 12 mm and width was 100mm. The casting speed was 1m/min. Quantity of the melt pouredon the cooling slope was important to make sound bar. The primary crystal became spherical, and itssize was about 40μm
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/24/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.141-143.295.pdf
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  • 9
    Electronic Resource
    Electronic Resource
    Novel phospholipids with aliphatic dicarboxylic acid residues in a lipid extract from bovine brain
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 155 (1988), S. 863-869 
    Details
    ISSN: 0006-291X
    Keywords: [abr] GPC; sn-glycero-3-phosphocholine ; [abr] PAF; platelet-activating ; [abr] acyl PAF; acyl analogue of PAF(1-long-chain acyl-2-short-chain ; [abr] tBDMS; tert-butyldimethyl-silyl
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/S0006-291X(88)80575-8
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  • 10
    Electronic Resource
    Electronic Resource
    Novel phospholipids with aliphatic dicarboxylic acid residues in a lipid extract from bovine brain
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 155 (1988), S. 863-869 
    Details
    ISSN: 0006-291X
    Keywords: [abr] GPC; sn-glycero-3-phosphocholine ; [abr] PAF; platelet-activating ; [abr] acyl PAF; acyl analogue of PAF(1-long-chain acyl-2-short-chain ; [abr] tBDMS; tert-butyldimethyl-silyl
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/S0006-291X(88)80575-8
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