Search Results - (Author, Cooperation:I. Ahn)
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1Latest Papers from Table of Contents or Articles in PressPark, Y. S., Lee, C.-H., Kim, Y.-I., Ahn, C. M., Kim, J. O., Park, J.-H., Lee, S. H., Kim, J. Y., Chun, E. M., Jung, T.-H., Yoo, K.-H.
BMJ Publishing
Published 2018Staff ViewPublication Date: 2018-05-16Publisher: BMJ PublishingElectronic ISSN: 2044-6055Topics: MedicineKeywords: Open access, Smoking and tobaccoPublished by: -
2Latest Papers from Table of Contents or Articles in PressKim, S. D., Lee, B., Byun, T., Chung, I. S., Park, J., Shin, I., Ahn, N. Y., Seo, M., Lee, Y., Kim, Y., Kim, W. Y., Kwon, H., Moon, H., Yoo, S., Kim, S. Y.
American Association for the Advancement of Science (AAAS)
Published 2018Staff ViewPublication Date: 2018-10-27Publisher: American Association for the Advancement of Science (AAAS)Electronic ISSN: 2375-2548Topics: Natural Sciences in GeneralPublished by: -
3Latest Papers from Table of Contents or Articles in PressO. P. Popova ; P. Jenniskens ; V. Emel'yanenko ; A. Kartashova ; E. Biryukov ; S. Khaibrakhmanov ; V. Shuvalov ; Y. Rybnov ; A. Dudorov ; V. I. Grokhovsky ; D. D. Badyukov ; Q. Z. Yin ; P. S. Gural ; J. Albers ; M. Granvik ; L. G. Evers ; J. Kuiper ; V. Kharlamov ; A. Solovyov ; Y. S. Rusakov ; S. Korotkiy ; I. Serdyuk ; A. V. Korochantsev ; M. Y. Larionov ; D. Glazachev ; A. E. Mayer ; G. Gisler ; S. V. Gladkovsky ; J. Wimpenny ; M. E. Sanborn ; A. Yamakawa ; K. L. Verosub ; D. J. Rowland ; S. Roeske ; N. W. Botto ; J. M. Friedrich ; M. E. Zolensky ; L. Le ; D. Ross ; K. Ziegler ; T. Nakamura ; I. Ahn ; J. I. Lee ; Q. Zhou ; X. H. Li ; Q. L. Li ; Y. Liu ; G. Q. Tang ; T. Hiroi ; D. Sears ; I. A. Weinstein ; A. S. Vokhmintsev ; A. V. Ishchenko ; P. Schmitt-Kopplin ; N. Hertkorn ; K. Nagao ; M. K. Haba ; M. Komatsu ; T. Mikouchi
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-11-10Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: *Accidents ; *Air ; *Explosions ; *Meteoroids ; RussiaPublished by: -
4Latest Papers from Table of Contents or Articles in PressRobinson, H. R., Qi, J., Cook, E. M., Nichols, C., Dadashian, E. L., Underbayev, C., Herman, S. E. M., Saba, N. S., Keyvanfar, K., Sun, C., Ahn, I. E., Baskar, S., Rader, C., Wiestner, A.
American Society of Hematology (ASH)
Published 2018Staff ViewPublication Date: 2018-08-03Publisher: American Society of Hematology (ASH)Print ISSN: 0006-4971Electronic ISSN: 1528-0020Topics: BiologyMedicineKeywords: Immunobiology and Immunotherapy, Lymphoid NeoplasiaPublished by: -
5Latest Papers from Table of Contents or Articles in PressAhn, I. E., Farooqui, M. Z. H., Tian, X., Valdez, J., Sun, C., Soto, S., Lotter, J., Housel, S., Stetler-Stevenson, M., Yuan, C. M., Maric, I., Calvo, K. R., Nierman, P., Hughes, T. E., Saba, N. S., Marti, G. E., Pittaluga, S., Herman, S. E. M., Niemann, C. U., Pedersen, L. B., Geisler, C. H., Childs, R., Aue, G., Wiestner, A.
American Society of Hematology (ASH)
Published 2018Staff ViewPublication Date: 2018-05-25Publisher: American Society of Hematology (ASH)Print ISSN: 0006-4971Electronic ISSN: 1528-0020Topics: BiologyMedicineKeywords: Lymphoid NeoplasiaPublished by: -
6Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-02-10Publisher: Rockefeller University PressPrint ISSN: 0022-1007Electronic ISSN: 1540-9538Topics: MedicineKeywords: Leukemia & LymphomaPublished by: -
7Articles: DFG German National LicensesStaff View
ISSN: 1432-2056Source: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract Diatom composition and biomass were investigated in the nearshore water (〈30 m in depth) of Maxwell Bay, Antarctica during the 1992/1993 austral summer. Epiphytic or epilithic diatoms such as Fragilaria striatula, Achnanthes brevipes var. angustata and Licmophora spp. dominated the water column microalgal populations. Within the bay, diatom biomass in surface water was several times higher at the nearshore (2.4–14 μg C l-1) than at the offshore stations (〉100 m) (1.2–3.2 μg C l-1) with a dramatic decrease towards the bay mouth. Benthic forms accounted for 〉90% of diatom carbon in all nearshore stations, while in the offshore stations planktonic forms such as Thalassiosira antarctica predominated (50–〉90%). Microscopic examination revealed that many of these diatoms have become detached from a variety of macroalgae growing in the intertidal and shallow subtidal bottoms. Epiphytic diatoms persistently dominated during a 19-day period in the water column at a fixed nearshore station, and the biomass of these diatoms fluctuated from 0.86 to 53 μg C l-1. A positive correlation between diatom biomass and wind speed strongly suggests that wind-driven resuspension of benthic forms is the major mechanism increasing diatom biomass in the water column.Type of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesStaff View
ISSN: 1573-4811Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsType of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesStaff View
ISSN: 1573-4803Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsNotes: Abstract The eutectic systems of Cd-Pb, Bi-Cd and Bi-Zn were alloyed using chemically pure raw materials in an electric furnace. The electrical resistivities were determined at room temperature in terms of the microstructures of the eutectic alloys. Electrical resistivities measured parallel and perpendicular to the unidirectional microstructure at different solidification rates were quite distinctive. The electrical resistivities measured were consistent with calculated values. The present study indicates qualitatively that unidirectional solidification of ideal conductor-insulator eutectic systems could produce electrical anisotropic materials.Type of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStaff View
ISSN: 1573-4803Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsNotes: Abstract Ag-Ge alloys containing 15 to 22 wt% Ge were unidirectionally solidified to investigate the growth conditions for fully eutectic growth (the coupled region) in the range of growth rate 1.4 x 10−4 to 1.1 cm sec−1 and at a temperature gradient of 200° C cm−1. Primary silver was not formed in the hypereutectic Ag-Ge alloys, implying that the coupled region of Ag-Ge alloys may be different from that of the other nf-f alloy systems such as Al-Si, Fe-C, Al-Ge and Al-Fe, whose coupled regions are usually skewed towards the faceted component. It was also observed that the morphologies of primary silver, primary germanium and eutectic structure were changed with increasing growth rate. Lamellar colonies were formed prominently in the fast-grown hypereutectic alloys. As the growth rate increased the tendency for branching in massive primary germanium was so pronounced that a lamellar colony was finally formed.Type of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesStaff View
ISSN: 1573-4803Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsNotes: Abstract The dependence of the microstructure on the growth rate and alloying composition in the InSb-NiSb system was investigated in order to determine the formation conditions of the eutectic coupled region of this system and to establish the relationship between the structural anisotropy and the magneto- and electrical resistance in this eutectic-coupled region. The InSb-NiSb alloy of 0.5 to 5 wt% NiSb formed the eutectic-coupled region at a growth rate of 0.5 cm h−1, but the same region was also found in 1 to 3wt% NiSb alloy grown at the rate of 1 cm h−1. Transverse magneto-resistance seems to be related to the continuity of metal fibre in the case of the eutectic alloy, and it has the highest value at eutectic volume fraction of fibres in the case of alloys whose composition belongs to the eutectic-coupled region.Type of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesStaff View
ISSN: 1573-5044Keywords: Cotyledonary-stage embryos ; seedling pretreatmentSource: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract Direct somatic embryos were differentiated on cotyledon transverse Thin Cell Layers (tTCLs) of Panax ginseng after 9 weeks in the Murashige and Skoog basal (MS) medium containing 2,4-d (5μM). When MS medium containing 2,4-d (5μM) was used for seedling pretreatment and for tTCLs culture, somatic embryos were observed 2 weeks earlier, i.e. after 7 weeks of culture. On the tTCLs from seedlings pretreated with 2,4-d (5μM) combined with benzyladenine and zeatin at 0.1 μM (BZ), somatic embryos were observed after 6 weeks of culture and the percentage of embryogenesis was higher (62%) than when 2,4-d was used alone for pretreatment (40%). Similar results were also obtained from pretreatment with combinations of 2,4-d (5μM) and thidiazuron (TDZ) (0.01, 0.1μM). When a combination of 2,4-d (5μM) and BZ (0.1μM) was used both for seedling pretreatment and for tTCLs culture, both somatic embryos and shoots were observed after only 3 weeks. As the concentration of BZ increased, the percentage of somatic embryogenesis decreased but the percentage of organogenesis increased. Similar responses were obtained with a combination of 2,4-d (5μM) and TDZ (0.01μM). On the medium containing both NAA (0.3μM) and BZ (1μM), globular- and heart- stage embryos developed after 4 weeks of culture into cotyledonary-staged embryos which remained dormant after a short elongation of the embryo axis. The importance of seedling pretreatment by growth substances in enhancing somatic embryogenesis is reported.Type of Medium: Electronic ResourceURL: