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  • 1
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    Satellite data gives snapshot of the 2005 Pakistan earthquake (2006)
    In:  Eos Trans. AGU, Karlsruhe, Nuclear Technology Publ., vol. 87, no. 7, pp. 73 & 77, pp. L21601, (ISBN: 0534351875, 2nd edition)
    Details
    Publication Date: 2006
    Description: While it is well-known that the collision of the Indian subcontinent with the Eurasian continent forms the Himalayas, the real-time spatial crustal movement of these plates is difficult to observe. However, scientists can witness a part of this process of the formation of the Himalayas through an eye in space: synthetic aperture radar (SAR). From the European Space Agency's Envisat, a satellite with SAR, the details of crustal deformation resulting from a major earthquake - a chance snapshot of the growth of the Himalayas - has been captured. Envisat's SAR has provided important data about the northern Pakistan earthquake (M7.6) of 8 October 2005, which occurred in the Kashmir region in the northwestern part of the Himalayas
    Keywords: Earthquake ; Crustal deformation (cf. Earthquake precursor: deformation or strain) ; InSAR ; remote ; sensing ; ESA ; ENVISAT ; IKONOS ; (ALOS) ; Source parameters ; Data analysis / ~ processing ; Geodesy ; 1209 ; Geodesy ; and ; Gravity: ; Tectonic ; deformation ; 1240 ; Satellite ; geodesy: ; results ; 6969 ; Radio ; Science: ; Remote ; sensing
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Crystal structure of non-phosphorylated MAP2K6 in a putative auto-inhibition state (2012)
    Oxford University Press
    Details
    Publication Date: 2012-04-27
    Description: Mitogen-activated protein kinase kinase 6 (MAP2K6) plays a crucial role in the p38 MAP kinase signal cascade that regulates various stress-induced responses and is associated with pathological conditions. The crystal structure of human non-phosphorylated MAP2K6 (npMAP2K6) complexed with an ATP analogue was determined at 2.6 Å resolution and represents an auto-inhibition state of MAP2K6. Three characteristics of short α-helices configured in the activation loop region, termed activation helices (AH1, AH2 and AH3), are important in controlling the auto-inhibition mechanism. AH1 displaces the αC-helix, a component essential for forming the active configuration, away from the active site. AH1 and AH2 were found to enclose the -phosphate, the leaving group of ATP. A comparison with the related enzymes, MAP2K1 and MAP2K4 reveals that MAP2K6 has the unique auto-inhibition mechanism mediated by the three activation helices.
    Print ISSN: 0021-924X
    Electronic ISSN: 1756-2651
    Topics: Biology , Chemistry and Pharmacology
    Published by Oxford University Press on behalf of The Japanese Biochemical Society (JBS).
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  • 3
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    Plasma structures of Kelvin-Helmholtz billows at the duskside flank of the magnetotail (2011)
    Wiley
    Details
    Publication Date: 2011-08-06
    Description: A multiple magnetopause crossing event on 24 March 1995 is examined to investigate the structures of plasma in the boundary regions of the magnetotail. The event was observed by Geotail crossing the magnetopause at the duskside flank of the near-Earth magnetotail. The interplanetary magnetic field had been sustained northward for more than 6 h before the event. Repeated patterns of variations in the temperature and density of plasma suggest strongly the presence of Kelvin-Helmholtz billows on the magnetopause. In agreement with previous papers, a magnetospheric region, termed the magnetotail low-latitude boundary layer (T-LLBL), is identified where parallel anisotropic ions flow tailward with the speed slower than ∼150 km/s. A new finding is that there is a region, termed the low-latitude interactive region (T-LLIR), filled with isotropic ions flowing tailward with the speed of ∼150 km/s between the magnetopause and the T-LLBL. The T-LLIR was found on the surface of magnetospheric billows but seemed not to exist near the trough between billows. The energy spectrum of the ion momentum (“the momentum spectrum” for simplicity) is first introduced to examine the characteristics of these boundary regions. It is shown that the momentum spectra in different regions show different profiles. The profile in the T-LLIR looks like an intermediate of those obtained in the magnetosheath and the T-LLBL. Using a multivariate Maxwellian mixture model, it is found that the distribution function of ions in the T-LLIR is composed of two cold components and one hot component. A significant feature in this model is that the bulk speed of a hotter component is faster. In contrast, the bulk speeds of the three Maxwellian components are nearly equal to each other in the T-LLBL. These characteristics in the distribution functions are responsible for the differences in the momentum spectra. The role of the T-LLIR in momentum and particle transportation to the magnetosphere from the magnetosheath is discussed.
    Print ISSN: 0148-0227
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 4
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    A functional [NiFe]hydrogenase mimic that catalyzes electron and hydride transfer from H2 (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-02-09
    Description: Chemists have long sought to mimic enzymatic hydrogen activation with structurally simpler compounds. Here, we report a functional [NiFe]-based model of [NiFe]hydrogenase enzymes. This complex heterolytically activates hydrogen to form a hydride complex that is capable of reducing substrates by either hydride ion or electron transfer. Structural investigations were performed by a range of techniques, including x-ray diffraction and neutron scattering, resulting in crystal structures and the finding that the hydrido ligand is predominantly associated with the Fe center. The ligand's hydridic character is manifested in its reactivity with strong acid to liberate H(2).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ogo, Seiji -- Ichikawa, Koji -- Kishima, Takahiro -- Matsumoto, Takahiro -- Nakai, Hidetaka -- Kusaka, Katsuhiro -- Ohhara, Takashi -- New York, N.Y. -- Science. 2013 Feb 8;339(6120):682-4. doi: 10.1126/science.1231345.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉World Premier International Research Center Initiative-International Institute for Carbon-Neutral Energy Research, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan. ogotcm@mail.cstm.kyushu-u.ac.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23393260" target="_blank"〉PubMed〈/a〉
    Keywords: Catalysis ; *Electrons ; Hydrogen/*chemistry ; Hydrogenase/*chemistry/metabolism ; Iron/*chemistry ; Ligands ; Models, Chemical ; Molecular Mimicry ; Molecular Structure ; Nickel/*chemistry ; Organometallic Compounds/*chemistry ; Oxidation-Reduction
    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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  • 5
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    A linear, O-coordinated eta1-CO2 bound to uranium (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-09-18
    Description: The electron-rich, six-coordinate tris-aryloxide uranium(III) complex [((AdArO)3tacn)U(III)] [where (AdArOH)3tacn = 1,4,7-tris(3-adamantyl-5-tert-butyl-2-hydroxybenzyl)1,4,7-triazacyclononane] reacts rapidly with CO2 to yield [((AdArO)3tacn)U(IV)(CO2)], a complex in which the CO(2) ligand is linearly coordinated to the metal through its oxygen atom (eta1-OCO). The latter complex has been crystallographically and spectroscopically characterized. The inequivalent O-C-O bond lengths [1.122 angstroms (A) for the O-C bond adjacent to uranium and 1.277 A for the other], considered together with magnetization data and electronic and vibrational spectra, support the following bonding model: U(IV)=O=C*-O- 〈--〉 U(IV)-OC-O-. In these charge-separated resonance structures, the uranium center is oxidized to uranium(IV) and the CO2 ligand reduced by one electron.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Castro-Rodriguez, Ingrid -- Nakai, Hidetaka -- Zakharov, Lev N -- Rheingold, Arnold L -- Meyer, Karsten -- 3 T32 DK07233-2651/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2004 Sep 17;305(5691):1757-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0358, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15375263" target="_blank"〉PubMed〈/a〉
    Keywords: Carbon Dioxide/*chemistry ; Crystallography ; Electrons ; Hydrophobic and Hydrophilic Interactions ; Ligands ; Magnetics ; Models, Molecular ; Molecular Structure ; Oxidation-Reduction ; Oxygen/*chemistry ; Spectrum Analysis ; Temperature ; Uranium/*chemistry ; X-Rays
    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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  • 6
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    Human apolipoprotein B: structure of carboxyl-terminal domains, sites of gene expression, and chromosomal localization (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-10-04
    Description: Apolipoprotein (apo-) B is the ligand responsible for the receptor-mediated catabolism of low density lipoproteins, the principal cholesterol-transporting lipoproteins in plasma. The primary structure of the carboxyl-terminal 30 percent (1455 amino acids) of human apo-B (apo-B100) has been deduced from the nucleotide sequence of complementary DNA. Portions of the protein structure that may relate to its receptor binding function and lipid binding properties have been identified. The apo-B100 messenger RNA is about 19 kilobases in length. The apo-B100 gene is expressed primarily in liver and, to a lesser extent, in small intestine, but in no other tissues. The gene for apo-B100 is located in the p24 region (near the tip of the short arm) of chromosome 2.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knott, T J -- Rall, S C Jr -- Innerarity, T L -- Jacobson, S F -- Urdea, M S -- Levy-Wilson, B -- Powell, L M -- Pease, R J -- Eddy, R -- Nakai, H -- GM 20454/GM/NIGMS NIH HHS/ -- HO 05196/HO/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1985 Oct 4;230(4721):37-43.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2994225" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Apolipoprotein B-100 ; Apolipoproteins B/analysis/*genetics ; Apolipoproteins E/analysis ; Base Sequence ; *Chromosome Mapping ; Chromosomes, Human, 1-3 ; DNA/analysis ; DNA Restriction Enzymes/metabolism ; Female ; *Gene Expression Regulation ; Haplorhini ; Humans ; Intestine, Small/metabolism ; Lipid Metabolism ; Lipoproteins, LDL/metabolism ; Liver/metabolism ; Mice ; RNA, Messenger/analysis ; Receptors, LDL/metabolism ; Structure-Activity Relationship
    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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    Control systems for the 2 K cryogenic systems at KEK-STF and KEK-cERL (2017)
    Institute of Physics (IOP)
    Details
    Publication Date: 2017-03-01
    Description: The Superconducting RF Test Facility and the compact Energy Recovery Linac are accelerator facilities at KEK that employ 1.3 GHz superconducting cavities fabricated using niobium. They should be cooled with liquid He at 2 K, for which cryogenic systems were developed at KEK. Home-made control systems were also introduced for stable and effective operation of the 2 K cryogenic systems. The performance of these cryogenic control systems has been improved in accordance with each beam operation.
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
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  • 8
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    Cryogenic system configuration for the International Linear Collider (ILC) at mountainous site (2017)
    Institute of Physics (IOP)
    Details
    Publication Date: 2017-03-01
    Description: The International Linear Collider (ILC) plans to make use of ten cryoplants for its main linacs, each providing 19 kW at 4.5 K equivalent and among of it 3.6 kW at 2 K. Each cryoplant will consist of various cryogenic components such as a 4.5 K refrigerator cold box, a 2 K refrigerator cold box, and helium compressors and so on. In the technical design report (TDR) of the ILC, due to the mountainous topology, almost all cryogenic components would be installed in underground cryogenic caverns next to the main linac tunnels and only cooling towers on surface area. However, we would like to find a more effective and sophisticated configuration of the cryoplant components (cryogenic configuration). Under several constraints of technical, geographical, and environmental points of view, the cryogenic configuration should be considered carefully to satisfy such various conditions. After discussions on this topic conducted at various workshops and conferences, an updated cryogenic confi...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
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  • 9
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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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  • 10
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    Present status of the astronomical ephemeris. (2020)
    Details
    Publication Date: 2021-05-19
    Description: In order to avoid confusion in the future the departure of the fundamental ephemerides, contained in the current volumes of the Astronomical Ephemeris (A.E.), from their basic theories have been investigated by rigorous preparations of computer programs. Regarding Newcomb’s (1895b) Tables of the Sun, it is found that several small terms in the perturbations of the radius vector by Venus and Mars have been neglected in the tabular values, besides the remarks by Clemence (1943) and Kinoshita et al. (1974〕on the perturbations in the longitude by Venus and Jupiter, respectively. Some of the numerical coefficients in the expression of the equation of the center seem to be in error, which causes an. error of 土0.'0l in the longitude of the Sun. In opposition to the remark by Williams and Clemence (1942〕it seems appropriate that Newcomb applied corrections to LeVerrier’s values of the eccentricity and the perihelion longitude of the earth’s orbit due to the elimination of terms dependent solely on the mean anomaly of the earth, as far as the perturbations in the longitude are concerned. The amount of the lunar inequality in the longitude calculated directly be making use of the daily ephemerides of the Sun and the Moon differs from that given by the Tables by about 土0."04. Although the expressions for the planetary perturbations of the latitude in Newcomb’s and Le Verrier’S Tables are both based on Le Verrier’s (1858) fundamental numbers, these Tables yield values differing by about 土0." 12 from each other. Comparison between the A.E. and the results of the rigorous computation has been made for the data for 1975 except for those of the Moon for which a comparison by Inoue (1977) for the data from 1952 to 1980 is available. The main features of the A.E.-data thus obtained are as follows : (a) Sun - Discrepancies from the rigorous computations in the longitude and the radius vectors are caused partly by the differences between the basic expressions and the actual tabular figures in Newcomb’s Tables. The remaining discrepancies do not seem still to be caused solely by accumulation of random errors. The discrepancy in the latitude is almost entirely caused by the difference between the basic expressions and the tabular figures. (b) Inner planets - Most of the discrepancies in the heliocentric coordinates can be regarded as tolerable, except that the radius vector of Mercury in the A.E. is systematically smaller than the values obtained by the rigorous computation. The effect of the discrepancies in the solar coordinates appear significantly in the geocentric ephemerides. (c) Outer planets -The numerical integrations by Eckert, Brouwer and Clemence (1951) are admirably correct. The right ascensions and declinations in the A.E. suffer from the incompleteness of the correction due to the change in the value of the aberration constant. The geocentric distances of Uranus and Neptune in the A.E. seem to be those obtained by omitting the figures lower than the printed last decimals. (d) Moon -The computation accuarcies of the A.E. may be around ±0'.'0010 for the longitude，土0."003 for the latitude and ±0."6 × 10-5 for the horizontal parallax. Errors in the A.E. may be caused mostly by the incomplete treatment of the higher terms regarding the change in the value of the dynamical form factor of the earth. Although the amounts of the discrepancies surveyed in the present investigation might be regarded as permissible in the past, we can now compute the ephemerides as precisely as we want whenever the basic theory is rigidly specified,with the general availability of computers. For example, the j = 2 ephemeris of the Moon prepared by Inoue (1977〕satisfactorily agrees with the Fundamental Lunar Ephemeris (Van Flandern, 1976) of the U.S. Nautical Almanac Office, the discrepancies between them being 土0."0002 in the longitude and latitude and 土2"× 10-6 in the horizontal parallax. Hence, we consider that the international ephemerides in the future should be computed by at least two institutes independently using different types of computer. Key words: Tables of the Sun fundamental ephemerides
    Description: Published
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.93-129
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