Search Results - (Author, Cooperation:H. Jeong)

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  1. 1
    Z. Feng ; L. Hensley ; K. L. McKnight ; F. Hu ; V. Madden ; L. Ping ; S. H. Jeong ; C. Walker ; R. E. Lanford ; S. M. Lemon
    Nature Publishing Group (NPG)
    Published 2013
    Staff View
    Publication Date:
    2013-04-02
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Animals ; Antibodies, Neutralizing/immunology/therapeutic use ; Cell Line ; Cell Membrane/*metabolism ; Cercopithecus aethiops ; Endosomal Sorting Complexes Required for Transport/metabolism ; Hepatitis A/blood/immunology/prevention & control/virology ; Hepatitis A virus/chemistry/growth & development/immunology/*metabolism ; *Host-Pathogen Interactions ; Humans ; Liver/virology ; Macaca mulatta ; Molecular Sequence Data ; Neutralization Tests ; Pan troglodytes ; Viral Envelope Proteins
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    H. Cho ; S. H. Jeong ; M. H. Park ; Y. H. Kim ; C. Wolf ; C. L. Lee ; J. H. Heo ; A. Sadhanala ; N. Myoung ; S. Yoo ; S. H. Im ; R. H. Friend ; T. W. Lee
    American Association for the Advancement of Science (AAAS)
    Published 2016
    Staff View
    Publication Date:
    2016-01-20
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Staff View
    Publication Date:
    2011-12-02
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  4. 4
    N. D. Young ; F. Debelle ; G. E. Oldroyd ; R. Geurts ; S. B. Cannon ; M. K. Udvardi ; V. A. Benedito ; K. F. Mayer ; J. Gouzy ; H. Schoof ; Y. Van de Peer ; S. Proost ; D. R. Cook ; B. C. Meyers ; M. Spannagl ; F. Cheung ; S. De Mita ; V. Krishnakumar ; H. Gundlach ; S. Zhou ; J. Mudge ; A. K. Bharti ; J. D. Murray ; M. A. Naoumkina ; B. Rosen ; K. A. Silverstein ; H. Tang ; S. Rombauts ; P. X. Zhao ; P. Zhou ; V. Barbe ; P. Bardou ; M. Bechner ; A. Bellec ; A. Berger ; H. Berges ; S. Bidwell ; T. Bisseling ; N. Choisne ; A. Couloux ; R. Denny ; S. Deshpande ; X. Dai ; J. J. Doyle ; A. M. Dudez ; A. D. Farmer ; S. Fouteau ; C. Franken ; C. Gibelin ; J. Gish ; S. Goldstein ; A. J. Gonzalez ; P. J. Green ; A. Hallab ; M. Hartog ; A. Hua ; S. J. Humphray ; D. H. Jeong ; Y. Jing ; A. Jocker ; S. M. Kenton ; D. J. Kim ; K. Klee ; H. Lai ; C. Lang ; S. Lin ; S. L. Macmil ; G. Magdelenat ; L. Matthews ; J. McCorrison ; E. L. Monaghan ; J. H. Mun ; F. Z. Najar ; C. Nicholson ; C. Noirot ; M. O'Bleness ; C. R. Paule ; J. Poulain ; F. Prion ; B. Qin ; C. Qu ; E. F. Retzel ; C. Riddle ; E. Sallet ; S. Samain ; N. Samson ; I. Sanders ; O. Saurat ; C. Scarpelli ; T. Schiex ; B. Segurens ; A. J. Severin ; D. J. Sherrier ; R. Shi ; S. Sims ; S. R. Singer ; S. Sinharoy ; L. Sterck ; A. Viollet ; B. B. Wang ; K. Wang ; M. Wang ; X. Wang ; J. Warfsmann ; J. Weissenbach ; D. D. White ; J. D. White ; G. B. Wiley ; P. Wincker ; Y. Xing ; L. Yang ; Z. Yao ; F. Ying ; J. Zhai ; L. Zhou ; A. Zuber ; J. Denarie ; R. A. Dixon ; G. D. May ; D. C. Schwartz ; J. Rogers ; F. Quetier ; C. D. Town ; B. A. Roe
    Nature Publishing Group (NPG)
    Published 2011
    Staff View
    Publication Date:
    2011-11-18
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    *Biological Evolution ; *Genome, Plant ; Medicago truncatula/*genetics/*microbiology ; Molecular Sequence Data ; Nitrogen Fixation/genetics ; Rhizobium/*physiology ; Soybeans/genetics ; *Symbiosis ; Synteny ; Vitis/genetics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  5. 5
    Morgan, E. T., Dempsey, J. L., Mimche, S. M., Lamb, T. J., Kulkarni, S., Cui, J. Y., Jeong, H., Slitt, A. L.
    The American Society for Pharmacology and Experimental Therapeutics (ASPET)
    Published 2018
    Staff View
    Publication Date:
    2018-04-05
    Publisher:
    The American Society for Pharmacology and Experimental Therapeutics (ASPET)
    Print ISSN:
    0090-9556
    Electronic ISSN:
    1521-009X
    Topics:
    Chemistry and Pharmacology
    Medicine
    Published by:
    http://www.aspet.org/

    Latest Papers from Table of Contents or Articles in Press
  6. 6
    Staff View
    Publication Date:
    2018-03-23
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Geosciences
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Medicine, Diseases
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  7. 7
    Staff View
    Publication Date:
    2018-02-10
    Publisher:
    The American Association of Immunologists (AAI)
    Print ISSN:
    0022-1767
    Electronic ISSN:
    1550-6606
    Topics:
    Medicine
    Published by:
    http://www.aai.org/

    Latest Papers from Table of Contents or Articles in Press
  8. 8
    Staff View
    Publication Date:
    2018-11-03
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Electronic ISSN:
    2375-2548
    Topics:
    Natural Sciences in General
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  9. 9
    Lee, J. H. ; Jeong, H. D. ; Kyung, H. ; Yoon, C. S. ; Kim, C. K.

    [S.l.] : American Institute of Physics (AIP)
    Published 2002
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Transmission electron microscopy (TEM) and Rutherford backscattering spectroscopy (RBS) were used to characterize low resistance (100–1000 Ω μm2) tunneling junctions consisting of Ta/NiFe/Cu/NiFe/IrMn/CoFe/Al (6.6 and 7.7 Å)–oxide/CoFe/NiFe/Ta multilayers after annealing at temperatures ranging from 250 to 500 °C. The Al (7.7 Å) junction showed continual improvement in the magnetoresistance (MR) ratio when annealed up to 300 °C while the MR ratio of the Al (6.6 Å) junction dropped sharply above 250 °C in spite of the only 1 Å difference in the deposited thickness of aluminum metal prior to plasma oxidation. TEM measurement provided evidence that the annealing process improves, in general, structural uniformity in the insulation layer, but thermal treatment can also degrade junction performance at a relatively low temperature due to current leakage through the electrodes. Current leakage can be problematic for a junction whose insulation barrier may be too thin (less than ∼10 Å). Both RBS and TEM analyses indicated that the maximum annealing temperature of exchange biased junctions lies between 400 and 500 °C above which the multilayer structure in the pinned electrode is destroyed by interdiffusion. © 2002 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.1420770

    Articles: DFG German National Licenses
  10. 10
    Skomski, R. ; Komesu, T. ; Borca, C. N. ; Jeong, H.-K. ; Dowben, P. A.

    [S.l.] : American Institute of Physics (AIP)
    Published 2001
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    The magnetism of antimony overlayers on a ferromagnetic substrate is investigated by spin-polarized inverse photoemission and explained in terms of a spin-dependent envelope-function approximation (SDEFA). The atomic structure of the films, which were deposited by sputtering Sb onto a NiMnSb(001) substrate, is characterized by a unique combination of three features: (i) NiMnSb is a highly spin-polarized semi-Heusler alloy predicted to be halfmetallic, (ii) antimony is a semimetal, exhibiting a band structure reminiscent of indirect-gap semiconductors, and (iii) the small lattice mismatch ensures a well-controlled interface. Combined x-ray absorption spectroscopy and spin-polarized inverse photoemission yield a layer-resolved spin polarization decaying on a length scale of the order of 1 nm. The unusual range of the spin polarization in the paramagnetic overlayer is explained by considering the alloy–antimony interface as a spin-dependent perturbation potential and taking into account the low effective masses of the Sb conduction electrons (only about 0.1 for both electrons and holes). © 2001 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.1357849

    Articles: DFG German National Licenses
  11. 11
    Lee, J. H. ; Jeong, H. D. ; Yoon, C. S. ; Kim, C. K.

    [S.l.] : American Institute of Physics (AIP)
    Published 2002
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Auger electron spectroscopy (AES) and Rutherford backscattering spectroscopy (RBS) analysis were carried out in order to study the extent of interdiffusion during thermal treatment of the pinned electrode (Ta/NiFe/Cu/NiFe/IrMn/CoFe) of the magnetic tunneling junction. From the concentration profile results from RBS and AES, a significant amount of Mn–CoFe interdiffusion was observed when the sample was annealed at 200 °C–400 °C under vacuum. The multilayer was completely intermixed at 400 °C, losing the exchange bias interaction between the IrMn and CoFe layers. It was demonstrated that the migration of Mn was enhanced by the preferential oxidation of Mn on the surface. In fact, when a thin layer of Ta for oxidation protection was deposited on top of the electrode, the Mn diffusion was minimal up to 300 °C. Our experiment suggests that in actual magnetic tunneling junctions, the Mn diffusion to the insulation layer could be enhanced by the presence of the free oxygen radicals in the insulation layer produced during the plasma oxidation of the Al layer. © 2002 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.1427400

    Articles: DFG German National Licenses
  12. 12
    Jeong, H.-J. ; Lee, M.-H. ; Ro, K.-W. ; Hur, C.-W. ; Kim, J.-W.

    Dordrecht, The Netherlands : Blackwell Science Ltd
    Published 1999
    Staff View
    ISSN:
    1468-2494
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Notes:
    A novel simple method to detect vitamins in cosmetic products by gas chromatography-mass spectrometry (GC-MS) has been developed. Three vitamins (panthenol, cholecalciferol and tocopherol) were used for this study. Vitamins were prepared by dissolving in tetrahydrofuran (ThF), and silylated with bis-trimethylsilyltri-fluoroacetamide- trichloromethylsilane (BSTFA). Silylated vitamins were separated on a fused-silica capillary column coated with DB-5. The identification of each vitamin was accomplished by retention time and mass spectrum library search with a computer, and the quantitation was made in the selected-ion monitoring (SIM) mode of GC-MS. SIM mode had given sensitivity to determine 50 pg of panthenol, 285 pg of cholecalciferol and 130 pg of tocopherol. Linearity was maintained over the range 0.005–0.20% for each vitamin. Each cosmetic product (i.e. hair tonic and lotion) was found to contain amounts of the vitamins. This method was sensitive and gave 77.5–99.9% recovery of each vitamin from these cosmetic products. From these results, we concluded that silylation with BSTFA followed by GC-MS analysis allows the simple, convenient and exact determination of panthenol, cholecalciferol and tocopherol.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1046/j.1467-2494.1999.181685.x

    Articles: DFG German National Licenses
  13. 13
    Choi, J. O. ; Jeong, H. S.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1999
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    A fabrication process has been developed which enables us to make matrix-addressable Mo-tip field-emitter arrays (FEAs) with 0.1 μm gate aperture and 0.2 μm tip-to-tip distance. An interferometric lithography combined with a trilevel resist process which uses an imaging resist layer, a silicon oxide interlayer, and antireflective coating has been implemented to fabricate the periodic structure of the gated FEAs in an addressable matrix. The matrix-addressable FEAs have shown a turn-on voltage as low as 13 V and an emission current density of 17 mA/cm2 at a gate voltage of 30 V. © 1999 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.124061

    Articles: DFG German National Licenses
  14. 14
    Gopalan, Sundararaman ; Wong, Chun-Hui ; Balu, Venkatasubramani ; Lee, Jian-Hung ; Han, Jeong H. ; Mohammedali, Razak ; Lee, Jack C.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1999
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Niobium doped strontium titanate [Sr(Ti1−xNbx)O3] thin films (≅40 nm) were deposited on Ir substrates using rf magnetron sputtering. The effect of Nb content (x=0, 0.001, 0.01, and 0.05) on the microstructure, dielectric constant, dielectric dispersion, and leakage current was studied. It was found that with increasing Nb content the dielectric constant decreased, probably owing to an observed decrease in grain size. The dielectric dispersion of all the Nb-doped ST films was lower than that of undoped ST film deposited at the same temperature and pressure. For the case of x=0.01, dispersion as low as 0.425% per decade was observed. The leakage current was found to increase slightly for x=0.001 and x=0.01, and drastically for the x=0.05 case. © 1999 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.124937

    Articles: DFG German National Licenses
  15. 15
    Lee, Jian-Hung ; Mohammedali, Razak ; Han, Jeong H. ; Balu, Venkatasubramani ; Gopalan, Sundararaman ; Wong, Chun-Hui ; Lee, Jack C.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1999
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    The rate of resistance degradation of thin (〈450 Å) niobium-doped strontium titanate polycrystalline films with platinum top electrodes and iridium bottom electrodes was investigated as a function of direct current (dc) voltages, temperature, Nb atomic fractions [Sr(Ti1−xNbx)O3+y, x=0, 0.001, 0.01, and 0.05, respectively], and capacitor areas (from 2.50×10−5 to 2.91×10−3 cm2). It was found that by increasing the amount of niobium, the resistance degradation rates were greatly reduced, but the leakage currents increased. Also, the degradation rates seemed fairly independent of the areas of the devices. © 1999 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.124723

    Articles: DFG German National Licenses
  16. 16
    Seo, J. W. ; Oh, C. S. ; Jeong, H. S. ; Yang, J. W. ; Lim, K. Y. ; Yoon, C. J. ; Lee, H. J.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 2002
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Growth of gallium oxide on n-GaN was realized in H2O by bias-assisted photoelectrochemical (PEC) oxidation using Al as a counterelectrode instead of a Pt commonly used in the PEC process. Although the growth of the oxide was not observed at below 2 V, the initial oxide growth rate of 8.7 nm/min was shown at a bias of 15 V and ultraviolet light intensity of 300 mW/cm2. However, the growth rate lowered and oxide thickness was saturated to 340 nm. The saturated oxide thickness and initial growth rate were increased with the applied bias. The homogeneous oxide growth and near stoichiometric composition of Ga2O3 were observed in Auger electron spectroscopy analysis results. © 2002 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.1498863

    Articles: DFG German National Licenses
  17. 17
    CHOI, I.-D. ; PHILLIPS, R.D. ; JEONG, H.-S.

    Oxford, UK : Blackwell Publishing Ltd
    Published 2004
    Staff View
    ISSN:
    1745-4603
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Process Engineering, Biotechnology, Nutrition Technology
    Notes:
    A mixture of partially defatted peanut flour (12% fat) and rice flour was extruded to produce indirectly, puffed extrudates using a corotating twin-screw extruder. Extrudates were dried to obtain half-products of 11-12% moisture content, and the half-products were expanded by deep-fat frying. The effects of three levels of peanut flour (30, 40, and 50%), screw speed (200, 300, and 400 rpm) and feed rate (4, 5, and 6 kg/h) were studied by characterizing the cellular structure of expanded snack products using Scanning Electron Microscopy (SEM). Average cell size (mm2) and the number of cells per unit area (cm2) were determined from the interior cross-section area of snack products. Those parameters were influenced mainly by the level of peanut flour followed by screw speed and feed rate. Increasing peanut flour from 40 to 50% produced less puffed final products resulting in small cell size compared to snacks of 30 - 40% peanut flour. The maximum cell size was produced in the snack products extruded with peanut flour of 30 - 40% at screw speed of 250 - 330 rpm and feed rate of 4.7 - 5.7 kg/h. While the number of cells was relatively similar regardless of screw speed and feed rate, increasing peanut flour increased the number of cells. The cell walls became thicker with increasing feed rate.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1111/j.1745-4603.2004.tb00600.x

    Articles: DFG German National Licenses
  18. 18
    Kim, S.-H. ; Jeong, H. ; Kim, Y.-K. ; Cho, S.-H. ; Min, K.-U. ; Kim, Y.-Y.

    Oxford, UK : Blackwell Science, Ltd
    Published 2001
    Staff View
    ISSN:
    1365-2222
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Notes:
    There have been few reported cases of occupational asthma induced by Pinellia ternata (Banha), and the mechanism responsible for this type of asthma is still undetermined. We report a case of Banha-induced occupational asthma with IgE-mediated mechanism. The patient had positive skin responses to Banha extract and Banha-specific bronchial challenge elicited an early asthmatic response. The serum-specific IgE binding to Banha extract was detectable and completely inhibited with the additions of 0.1 µg/mL of Banha extract on ELISA inhibition. Seven IgE binding components to Banha extract (6.5, 22, 24, 32, 34, and 48 kDa) were detected using SDS–PAGE and immunoblot analysis. In conclusion, the results of this study suggest that P. ternata (Banha)-derived allergens are able to cause IgE-mediated bronchoconstriction in exposed workers.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1046/j.1365-2222.2001.01067.x

    Articles: DFG German National Licenses
  19. 19
    Cleavinger, Catherine M. ; Kim, Mary F. ; Im, Jeong H. ; Wise, Kim S.

    Osney Mead, Oxford OX2 0EL, UK : Blackwell Science Ltd
    Published 1995
    Staff View
    ISSN:
    1365-2958
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Biology
    Medicine
    Notes:
    Wall-less prokaryotes in the genus Mycoplasma include over 90 species of infectious agents whose pathogenicity for humans and other animals is currently being assessed. Molecular characterization of surface proteins is critical in this regard but is hampered by the lack of genetic systems in these organisms. We used TnphoA transposition to systematically mutagenize, in Escherichia coli, a genomic plasmid library constructed from Mycoplasma fermentans, a potential human pathogen. The strategy circumvented problems of expressing mycoplasma genes containing UGA (Trp) codons and relied on the construction of the vector pG7ZCW, designed to reduce TnphoA transposition into vector sequences. Functional phoA gene fusions directly identified genes encoding 19 putative membrane-associated proteins of M. fermentans. Sequences of fusion constructs defined three types of export sequence: (1) non-cleavable, membrane-spanning sequences, (2) signal peptides with signal peptidase (SPase) I-like cleavage sites, and (3) signal peptides with SPase II-like lipoprotein-cleavage sites which, like most other mycoplasmal lipoprotein signals analysed to date, differed from those in several Gram-negative and Gram-positive eubacteria in their lack of a Leu residue at the −3 position. Antibodies to synthetic peptides that were deduced from two fusions to predicted lipoproteins, identified corresponding amphiphilic membrane proteins of 57 kDa and 78 kDa expressed in the mycoplasma. The P57 sequence contained a proline-rich N-terminal region analogous to an adhesin of Mycoplasma gallisepticum. The P78 protein was identical to a serologically defined phase-variant surface lipoprotein. TnphoA mutagenesis provides an efficient means of systematically characterizing functionally diverse lipoproteins and other exported proteins in mycoplasmas.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1111/j.1365-2958.1995.mmi_18020283.x

    Articles: DFG German National Licenses
  20. 20
    Podani, J. ; Jeong, H. ; Tombor, B. ; Barabási, A.-L. ; Oltvai, Z.N. ; Szathmáry, E.

    [s.l.] : Nature Publishing Group
    Published 2001
    Staff View
    ISSN:
    1546-1718
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Medicine
    Notes:
    [Auszug] A central and long-standing issue in evolutionary theory is the origin of the biological variation upon which natural selection acts. Some hypotheses suggest that evolutionary change represents an adaptation to the surrounding environment within the constraints of an organism's innate ...
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1038/ng708

    Articles: DFG German National Licenses