Search Results - (Author, Cooperation:Y. Jeon)
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1Latest Papers from Table of Contents or Articles in PressJhun, B. W., Yang, B., Moon, S. M., Lee, H., Park, H. Y., Jeon, K., Kwon, O. J., Ahn, J., Moon, I. J., Shin, S. J., Daley, C. L., Koh, W.-J.
The American Society for Microbiology (ASM)
Published 2018Staff ViewPublication Date: 2018-06-27Publisher: The American Society for Microbiology (ASM)Print ISSN: 0066-4804Electronic ISSN: 1098-6596Topics: BiologyMedicinePublished by: -
2Latest Papers from Table of Contents or Articles in PressD. N. Burrows ; J. A. Kennea ; G. Ghisellini ; V. Mangano ; B. Zhang ; K. L. Page ; M. Eracleous ; P. Romano ; T. Sakamoto ; A. D. Falcone ; J. P. Osborne ; S. Campana ; A. P. Beardmore ; A. A. Breeveld ; M. M. Chester ; R. Corbet ; S. Covino ; J. R. Cummings ; P. D'Avanzo ; V. D'Elia ; P. Esposito ; P. A. Evans ; D. Fugazza ; J. M. Gelbord ; K. Hiroi ; S. T. Holland ; K. Y. Huang ; M. Im ; G. Israel ; Y. Jeon ; Y. B. Jeon ; H. D. Jun ; N. Kawai ; J. H. Kim ; H. A. Krimm ; F. E. Marshall ; P. Meszaros ; H. Negoro ; N. Omodei ; W. K. Park ; J. S. Perkins ; M. Sugizaki ; H. I. Sung ; G. Tagliaferri ; E. Troja ; Y. Ueda ; Y. Urata ; R. Usui ; L. A. Antonelli ; S. D. Barthelmy ; G. Cusumano ; P. Giommi ; A. Melandri ; M. Perri ; J. L. Racusin ; B. Sbarufatti ; M. H. Siegel ; N. Gehrels
Nature Publishing Group (NPG)
Published 2011Staff ViewPublication Date: 2011-08-26Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
3Articles: DFG German National LicensesVenkatesan, T. ; Wu, X. D. ; Inam, A. ; Jeon, Y. ; Croft, M. ; Chase, E. W. ; Chang, C. C. ; Wachtman, J. B. ; Odom, R. W. ; di Brozolo, F. Radicati ; Magee, C. A.
Woodbury, NY : American Institute of Physics (AIP)
Published 1988Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: The pulsed laser thin-film deposition process can enable preparation of thin films of complex composition with good control over the film stoichiometry. The film compositions are similar to that of the target pellet and as a consequence this technique appears to be an ideal method for preparing high Tc thin films on a variety of substrates.The factors which contribute to this beneficial phenomenon have been explored by a laser ionization mass spectrometry (LIMS) and a post ablation ionization (PAI) neutral velocity analysis technique in order to determine the mass and velocities of the laser ejected material. In addition, x-ray absorption measurements on films deposited onto substrates at room temperature were performed in order to identify the presence of short-range crystalline order in the films. Both of these studies rule out the ejection of stoichiometric clusters of material from the pellet during the laser ablation/deposition process. Instead, binary and ternary suboxides are emitted from the target pellet. These suboxides most likely have unit sticking coefficient to the substrate which could contribute to the preservation of the film stoichiometry. The velocity distribution of several neutral species (e.g., BaO) indicates that particles have energies of several eV. Thus the effective temperatures of the emitted species are ∼15×103 K, and these energetic particles may facilitate growth of the crystalline films at low substrate temperatures.Type of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesJeon, Y. ; Lu, F. ; Jhans, H. ; Shaheen, S. A. ; Croft, M. ; Ansari, P. H.
[S.l.] : American Institute of Physics (AIP)
Published 1988Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: X-ray absorption spectroscopy measurements on rare-earth (R) and Ba sites in the new superconducting oxides and in binary rare-earth oxides are discussed. All of the near-edge spectra appear to manifest a continuum resonance feature whose energy is quantitatively well correlated with the R–O and Ba–O bond lengths. Evidence supporting a second such feature related to the R/Ba interatomic distance is also presented. Finally, simultaneous consideration of both of these features appears consistent with the inverse square-law expectation for the interatomic distance dependence of the energies of these spectra features.Type of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesPaik, J H ; Jeon, Y K ; Park, S S ; Kim, Y A ; Kim, J E ; Huh, J ; Lee, S-S ; Kim, W H ; Kim, C W
Oxford, UK : Blackwell Science Ltd
Published 2005Staff ViewISSN: 1365-2559Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Aims : To evaluate the different expression patterns and the prognostic significance of cell cycle regulatory molecules in diffuse large B-cell lymphomas (DLBCLs) of germinal centre (GC) and non-GC phenotypes.Methods and results : Tissue microarray slides composed of 126 extranodal and 88 nodal DLBCLs were immunostained for p16, p21, p27, p14 and p53. DLBCLs were classified into GC and non-GC phenotype according to the immunohistochemical expression of bcl-6, CD10, and MUM1. Aberrant expression of p53 was more frequent in the GC phenotype in nodal cases (P = 0.038), and the loss of p16, p21 and p14 expression was significantly more common in the non-GC phenotype (P = 0.004, P = 0.001, P 〈 0.001). Concurrent disruptions of the p16-Rb and p14-p53 pathways as represented by the immunoprofile of p16/p14/p53 (–/–/+) were associated with a poor prognosis in the GC phenotype [mean survival 31 months in the p16/p14/p53 (–/–/+) group versus 62 months in the other groups, P =0.0485].Conclusions : The expression and prognostic implications of cell cycle regulatory molecules differ between GC and non-GC phenotypes in DLBCLs. The immunoprofile of p16/p14/p53 (–/–/+) within the GC phenotype of DLBCLs can be defined as a poor prognostic subgroup.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesCho, K-H. ; Lee, S-H. ; Kim, C-W. ; Jeon, Y-K. ; Kwon, I-H. ; Cho, Y-J. ; Lee, S-K. ; Suh, D-H. ; Chung, J-H. ; Yoon, T-Y. ; Lee, S-J.
Oxford, UK : Blackwell Science Ltd
Published 2004Staff ViewISSN: 1365-2133Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Background There are many reports of patients with a severe hydroa vacciniforme (HV)-like eruption in which cutaneous lesions occur in both sun-exposed and non-exposed areas, unlike in true HV. Several patients have died from a malignant haematological neoplasm. In most cases, a latent Epstein–Barr virus (EBV) infection has been detected in the skin lesions.Objectives To describe the clinical and laboratory features of six additional patients with an EBV-associated HV-like eruption.Methods The clinical, histological and immunohistochemical features were reviewed. T-cell receptor γ gene rearrangements were studied using polymerase chain reaction (PCR) and heteroduplex analysis. In-situ hybridization was performed to detect mRNA for EBV in skin biopsy specimens. PCR was performed to screen for EBV infection in the skin lesions of three patients and blood of two patients. Photoprovocation with repeated ultraviolet (UV) A exposure was performed in three patients.Results The severity of the skin lesions and the clinical course varied among the patients. Skin lesions were induced by repeated UVA exposure in three patients and a latent EBV infection was demonstrated in the photoprovoked lesions.Conclusions Three different clinical courses were found in six patients with an HV-like eruption associated with chronic EBV infection: (i) spontaneous remission; (ii) clearing after photoprotection; and (iii) continuous recurrence irrespective of sun exposure. It is possible that there are two patterns of HV-like eruption associated with chronic EBV infection. One is characterized by recurrent necrotic papulovesicles of the face and the other by nodules and facial swelling. It was demonstrated that the skin lesions could be triggered by repeated UVA exposure in the patients showing recurrent necrotic papulovesicles of the face.Type of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesStaff View
ISSN: 0921-4526Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesStaff View
ISSN: 0921-4534Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesChen, J. ; Kemly, E. ; Croft, M. ; Jeon, Y. ; Xu, X. ; Shaheen, S.A. ; Ansari, P.H.
Amsterdam : ElsevierStaff ViewISSN: 0038-1098Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PhysicsType of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStaff View
ISSN: 0167-9317Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Electrical Engineering, Measurement and Control TechnologyType of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesJang Lee, Y. ; Pin Lee, C. ; Tag Jeon, Y. ; Mariano, P.S. ; Chan Yoon, U. ; Uk Kim, D. ; Kim, J.C. ; Gun Lee, J.
Amsterdam : ElsevierStaff ViewISSN: 0040-4039Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyType of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesStaff View
ISSN: 1749-6632Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Natural Sciences in GeneralType of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesStaff View
ISSN: 1572-9044Keywords: discrete qualocation ; Symm’s integral equation ; piecewise smooth boundary ; 65R20 ; 65N38Source: Springer Online Journal Archives 1860-2000Topics: MathematicsNotes: Abstract We consider a fully discrete qualocation method for Symm’s integral equation. The method is that of Sloan and Burn (1992), for which a complete analysis is available in the case of smooth curves. The convergence for smooth curves can be improved by a subtraction of singularity (Jeon and Kimn, 1996). In this paper we extend these results for smooth boundaries to polygonal boundaries. The analysis uses a mesh grading transformation method for Symm’s integral equation, as in Elschner and Graham (1995) and Elschner and Stephan (1996), to overcome the singular behavior of solutions at corners.Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesThe collocation method for mixed boundary value problems on domains with curved polygonal boundariesStaff View
ISSN: 0945-3245Keywords: Key words: trigonometric collocation method, mixed boundary value problem for the Laplacian, polygonal domains Mathematics Subject Classification (1991): 65 N 38, 65 N 35, 65 R 20Source: Springer Online Journal Archives 1860-2000Topics: MathematicsNotes: Summary. We consider an indirect boundary integral equation formulation for the mixed Dirichlet-Neumann boundary value problem for the Laplace equation on a plane domain with a polygonal boundary. The resulting system of integral equations is solved by a collocation method which uses a mesh grading transformation and a cosine approximating space. The mesh grading transformation method yields fast convergence of the collocation solution by smoothing the singularities of the exact solution. A complete stability and solvability analysis of the transformed integral equations is given by use of a Mellin transform technique, in a setting in which each arc of the polygon has associated with it a periodic Sobolev space.Type of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesStaff View
ISSN: 1432-0630Keywords: PACS: 78.70.Dm; 79.20.Rf; 73.20.AtSource: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsPhysicsNotes: Abstract. In this paper, we discuss X-ray absorption spectroscopy and Auger electron spectroscopy results that elucidate the local atomic arrangements and electronic structure change of ion-beam-mixed Ag-Cr and Pd-Cr alloys. Cr K-edgespectra were used to investigate the local crystal structure in these ion-beam-mixed thin film alloys. In ion-beam-mixed Ag-Cr thin films with a large positive value of heat of formation (ΔHm) the local crystal structure of the Cr site does not change, but in ion-beam-mixed Pd-Cr thin films with large negative value of ΔHm the structure of Cr site changes from a bcc to an fcc structure with increasing Pd concentration. In addition, Pd L3 X-ray absorption near-edge measurements show a decrease of the white line feature associated with the transition from 2p core level to 4d empty band in the Pd site of ion-beam-mixed Pd-Cr alloys. In contrast to the Pd-Cr system, the Ag L3 near-edge spectra remain unchanged in the ion-beam-mixed Ag-Cr system. It is thus concluded that the ion-beam-mixed Ag-Cr thin films consist of a mixture of elemental domains with no obvious indication of intermetallic alloying or compound formation as a consequence of the positive heat of mixing.Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 1434-4726Keywords: Key words Surgical wound infection ; Otologic ; surgery ; Methicillin-resistant Staphylococcus aureus ; Ribotyping ; EcoR1Source: Springer Online Journal Archives 1860-2000Topics: MedicineNotes: Abstract The incidence of methicillin-resistant Staphylococcus aureus (MRSA) infections after middle ear surgery has recently increased at our hospital. Most of these infections were thought to be hospital-acquired when medical personnel in contact with an MRSA-infected patient may have inadvertently transmitted the pathogen to other patients. To prevent further transmission it is essential that such sources of MRSA infection and transmission routes be selected out and eradicated. Therefore, it is necessary to determine whether the strains of MRSA isolated from infected patients are identical to those obtained from medical personnel in order to prove a reciprocal transmission of organisms between medical personnel and patients. Surveillance bacterial cultures from the anterior nares and hands of medical personnel working in the Department of Otolaryngology, Korea University Guro Hospital, were performed at two different time points: 6 December 1994 and 17 June 1996. Ribotyping with Southern blot technique was used to compare 12 MRSA strains from medical carriers with 60 strains identified from the otorrhea of MRSA-infected patients undergoing middle ear surgery. As result, six different MRSA strains were identified (types I, II, III, IV, V and VI) from ribotyping with EcoR1. One distinct subtype, type I strain, was the most frequently identified strain in both medical carriers and patients. Results also showed that 6 MRSA isolates from 10 medical carriers and 20 from 30 patients contained type I ribotype at first culture. Two medical carriers’ isolates and 13 isolates from 30 patients shared the same type I strain at the second surveillance culture. In all, 41 out of 72 MRSA strains (56.9%) shared an identical ribotype pattern. Postoperative MRSA infection rates after treatment of medical carriers and the application of rigorous preventive procedures decreased from 11.9 to 5.7% after first culture and 9.0 to 7.7% following second cultures. These findings confirm that MRSA transmission can occur between medical personnel and patients and that effective preventive measures can reduce the postoperative infection rate.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesStaff View
ISSN: 1588-2780Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyEnergy, Environment Protection, Nuclear Power EngineeringNotes: Abstract A study on the separation of Li isotopes was carried out with a resin having monobenzo-15-crown-5 as a functional group, synthesized by substitution reaction of chloromethylated styrene-DVB copolymer with 4′-aminobenzo-15-crown-5. Adsorption properties of the resin for Li+ were invesgated with batch method in various solvents and counter anions. Upon column chromatography [0.9 cm (I. D.)×25 cm (height)] using 5% (v/v) H2O in acetonitrile as an eluent, single separation factor, α, 1.053 (±0.005), (6Li/7Li)resin/ (6Li/7Li) solution was obtained by the GLUECKAUF method from the elution curve and isotope ratios.Type of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesStaff View
ISSN: 1588-2780Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyEnergy, Environment Protection, Nuclear Power EngineeringNotes: Abstract The chromatographic separation of magnesium isotopes was investigated by chemical ion exchange with 1,16-dithia-4,7,10,13-tetraazacyclooctadecane-4,7,10,13-tetramerrifield peptide resin[N4S2·4M] synthesized recently. The capacity of novel N4S2 azacrown ion exchanger was 0.34 meq/g dry resin. The heavier isotopes of magnesium concentrated in the resin phase, while the lighter isotopes are enriched in the solution phase. The glass ion exchange column used was 30 cm long with inner diameter of 0.2 cm, and the 1.0M NH4Cl solution was used as an eluent. The separation factors of24Mg−25Mg,25Mg−26Mg, and24Mg−26Mg were 1.047, 1007, and 1.008, respectively.Type of Medium: Electronic ResourceURL: -
19Articles: DFG German National LicensesStaff View
ISSN: 1588-2780Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyEnergy, Environment Protection, Nuclear Power EngineeringNotes: Abstract A study on the separation of lithium isotopes was carried out with 1,13-dioxa-4,7,10-triazacyclopentadecane-4,7,10-trimerrifield peptide resin [N3O23M]. The resin having N3O2 as an anchor group has a capacity of 0.2 meq/g dry resin. Upon column chromatography [0.1 cm (I.D)×30 cm (height)] using 1.0M NH4Cl solution as an eluent, a single separation factor of 1.00104 was obtained from the elution curve and isotope ratios based on theGlueckauf theory. The heavier isotope,7Li concentrated in the resin phase, while the lighter isotope,6Li enriched in the solution phase.Type of Medium: Electronic ResourceURL: -
20Articles: DFG German National LicensesKim, D. W. ; Hong, Ch. P. ; Kim, Ch. S. ; Jeong, Y. K. ; Jeon, Y. Sh. ; Lee, J. K.
Springer
Published 1997Staff ViewISSN: 1588-2780Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyEnergy, Environment Protection, Nuclear Power EngineeringNotes: Abstract A study on the separation of lithium isotopes was carried out with an ion exchange resin having 1,7,13-trioxa-4,10,16-triazacyclooctadecane (N3O3) as an anchor group. The lighter isotope,6Li concentrated in the resin phase, while the heavier isotope,7Li is enriched in the fluid phase. Upon column chromatography [0.6 cm (I. D.)×20 cm (height)] using 1.0M ammonium chloride solution as an eluent, single separation factor, α, 1.068 (6Li/7Li)resin/(6Li/7Li)solution was obtained by theGlueckauf method from the elution curve and isotope ratios.Type of Medium: Electronic ResourceURL: