51
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Jeong IK, Darling TW, Lee JK, Proffen T, Heffner RH, Park JS, Hong KS, Dmowski W, Egami T. Direct observation of the formation of polar nanoregions in Pb(Mg1/3Nb2/3)O3 using neutron pair distribution function analysis. PHYSICAL REVIEW LETTERS 2005; 94:147602. [PMID: 15904113 DOI: 10.1103/physrevlett.94.147602] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2004] [Indexed: 05/02/2023]
Abstract
Using neutron pair distribution function analysis over the temperature range from 1000 to 15 K, we demonstrate the existence of local polarization and the formation of medium-range, polar nanoregions (PNRs) with local rhombohedral order in a prototypical relaxor ferroelectric Pb(Mg(1/3)Nb(2/3))O3. We estimate the volume fraction of the PNRs as a function of temperature and show that this fraction steadily increases from 0% to a maximum of approximately 30% as the temperature decreases from 650 to 15 K. Below T approximately 200 K the volume fraction of the PNRs becomes significant, and PNRs freeze into the spin-glass-like state.
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Yokoo T, Arai M, Frost C, Endoh Y, Egami T, Shiohara Y, Tajima S. Spin Dynamics in High- T c Superconductor YBa 2 Cu 3 O 6.9. JOURNAL OF NEUTRON RESEARCH 2004. [DOI: 10.1080/10238160412331299429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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53
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Mamontov E, Brezny R, Koranne M, Egami T. Nanoscale Heterogeneities and Oxygen Storage Capacity of Ce0.5Zr0.5O2. J Phys Chem B 2003. [DOI: 10.1021/jp030662l] [Citation(s) in RCA: 115] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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54
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Kaneko T, Yonemitsu K, Ikuta Y, Sugihara J, Egami T, Rikimaru F, Saka Y. [Complete disruption of cervical trachea, whose distal airways were migrated into the mediastinum]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2003; 56:129-32. [PMID: 12635323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
The first case was a 55-year-old man, who suffered by a rope while driving his motor bicycle. On 7th day after injury, tracheotomy was scheduled due to progressive dyspnea. Following intubation of a endotracheal tube, his trachea was ruptured. The second case was a 16-year-old man, who was stabbed his trachea with a sword by his mother. His trachea completely separated following coughing during the examination of bronchoscopy. For 2 cases, we immediately excised their necks for tracheotomy but couldn't find their distal portion of trachea, because they were migrated into the mediastinum. We inserted our finger into the mediastinum for exploration and could draw it back. Both case's postoperative course was uneventful. Whenever cervical trachea is completely separated, tracheal distal end may be pulled down into the mediastinum. We invited new technique of exploration for migrated trachea using our finger.
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55
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Egami T, Sacli OA, Simpson AW, Terry AL, Wedgwood FA. Amorphous antiferromagnetism in iron and cobalt phosphorus pentoxide glasses. ACTA ACUST UNITED AC 2001. [DOI: 10.1088/0022-3719/5/18/003] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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56
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Egami T. Effect of zero-point energy on magnetocrystalline anisotropy of the rare earth metals. ACTA ACUST UNITED AC 2001. [DOI: 10.1088/0022-3719/5/8/003] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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57
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Onn DG, Johnson WD, Gleeson PF, Donnelly TA, Egami T, Liebermann HH. Low-temperature heat capacity of the metallic glasses Fe80P14B6, Fe40Ni40P14B6and Ni80P14B6. ACTA ACUST UNITED AC 2001. [DOI: 10.1088/0022-3719/10/22/005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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58
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Egami T. Competing interactions in complex oxides: Polaron stability in manganites and cuprates. ACTA ACUST UNITED AC 2001. [DOI: 10.1063/1.1363057] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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59
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Egami T, Srolovitz D. Local structural fluctuations in amorphous and liquid metals: a simple theory of the glass transition. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0305-4608/12/10/010] [Citation(s) in RCA: 185] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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60
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Srolovitz D, Maeda K, Takeuchi S, Egami T, Vitek V. Local structure and topology of a model amorphous metal. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0305-4608/11/11/004] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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61
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Mamontov E, Egami T, Brezny R, Koranne M, Tyagi S. Lattice Defects and Oxygen Storage Capacity of Nanocrystalline Ceria and Ceria-Zirconia. J Phys Chem B 2000. [DOI: 10.1021/jp0023011] [Citation(s) in RCA: 441] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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62
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Okazaki M, Suzuki K, Araki K, Asano N, Shukuya N, Egami T, Furuya N, Uchimura H, Morita K, Watanabe N, Kanamori M, Ito K. [Molecular investigation of pathogenic factors of suspected-diarrheogenic Escherichia coli isolates from patients feces]. KANSENSHOGAKU ZASSHI. THE JOURNAL OF THE JAPANESE ASSOCIATION FOR INFECTIOUS DISEASES 2000; 74:372-7. [PMID: 10835844 DOI: 10.11150/kansenshogakuzasshi1970.74.372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
One hundred fifty-one O serotypable Escherichia coli strains which were assumed diarrheogenic E. coli among 2,240 strains of E. coli isolated from the in- and outpatients stools with or without gastrointestinal symptoms at Kyorin University Hospital from February 1994 to September 1996 were examined for the relationship between the possession of eight pathogenic factor-related genes and gastrointestinal symptoms of the patients using the polymerase chain reaction (PCR) for these strains. The rate of possession of pathogenic factor-related genes in the E. coli examined was 20.5% (31 strains) and gastrointestinal symptoms were found in all the patients with these strains except one. In the patients without gastrointestinal symptoms, E. coli isolates that possesses these genes was detected in only one case during 61 cases. The respective genes detected were eaeA and astA in each 14 strains, VT1 in 6, VT2 in 5, ST1b in 4, aggR in 3 and LT in 2, ST1a and invE gene was not detected. In particular, the O157 strains were found in 55.6% (5/9 strains) for these genes, and individual strains had VT1, VT2, eaeA and astA genes simultaneously. In contrast, none of these related genes was found in 9 strains of enteroinvasive serotype but enteropathogenic E. coli-related genes were found in 3 strains. The rate of possession of the genes related to enterotoxigenic E. coli, O159 which was most frequently isolated was low as 2.3% (1/43 strains, astA gene) and there were strains showing low correlation to the state of possession of the genes with the O serotype. Since the prevalence of the gastrointestinal symptoms is clearly high for the case which possesses the strain of which the pathogenic factor-related gene was detected, it was suggested that detection of pathogenic factor-related genes in E. coli isolates from feces using the PCR could be an effective means to decide whether the bacteria concerned was a causal bacteria or not in clinical practice.
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63
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Okazaki M, Watanabe T, Morita K, Higurashi Y, Araki K, Shukuya N, Baba S, Watanabe N, Egami T, Furuya N, Kanamori M, Shimazaki S, Uchimura H. Molecular epidemiological investigation using a randomly amplified polymorphic DNA assay of Burkholderia cepacia isolates from nosocomial outbreaks. J Clin Microbiol 1999; 37:3809-14. [PMID: 10565889 PMCID: PMC85819 DOI: 10.1128/jcm.37.12.3809-3814.1999] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We experienced two Burkholderia cepacia outbreaks over a 1-year period. During this period, 28 B. cepacia isolates were obtained from clinical specimens, and 2 were obtained from environmental specimens (i.e., from a nebulizer solution and a nebulizer tube). These 30 isolates were subjected to the PCR-based randomly amplified polymorphic DNA (RAPD) assay as well as to pulsed-field gel electrophoresis (PFGE). In the first outbreak, in which eight patients hospitalized in the Trauma and Critical Care Center were involved, the RAPD assay revealed that all 20 isolates obtained from clinical specimens and the 2 isolates from environmental specimens had identical DNA profiles. These RAPD data enabled us to pinpoint a possible source and to take countermeasures to prevent further spread of the epidemic-causing strain. In the second outbreak, two consecutive B. cepacia infection/colonization cases were seen in the surgery ward. The RAPD profiles of four isolates obtained were again identical, but they were distinct from those seen in the first outbreak, clearly indicating that the second outbreak was not related to the first. Thus, our experience demonstrated that the RAPD assay is a useful and reliable tool for epidemiological studies of B. cepacia isolates from nosocomial outbreaks. Since the RAPD assay could provide discriminatory potential and reproducibility comparable to those of the widely used PFGE assay with less complexity and in a shorter time, the introduction of the RAPD assay into hospital microbiology laboratories as a routine technique may help prevent nosocomial outbreaks.
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64
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Putna E, Bunluesin T, Fan X, Gorte R, Vohs J, Lakis R, Egami T. Ceria films on zirconia substrates: models for understanding oxygen-storage properties. Catal Today 1999. [DOI: 10.1016/s0920-5861(98)00514-8] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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65
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66
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Teslic S, Egami T. Atomic Structure of PbZrO3 Determined by Pulsed Neutron Diffraction. ACTA CRYSTALLOGRAPHICA SECTION B: STRUCTURAL SCIENCE 1998. [DOI: 10.1107/s0108768198003802] [Citation(s) in RCA: 102] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The atomic structure of lead zirconate, PbZrO3 (PZ), was studied using Rietveld refinement and atomic pair distribution function analysis of pulsed neutron powder diffraction data for the antiferroelectric, intermediate and paraelectric phases. The symmetry of PZ at T = 20 K in the antiferroelectric phase was determined to be Pbam. The structure was characterized by distortions of the ZrO6 octahedra which are smaller than in previous studies. Locally correlated displacements of Pb in the c direction develop with increasing temperature. The average magnitude was 0.06 Å at room temperature, 0.14 Å at T = 473 K and 0.20 Å in the intermediate phase at T = 508 K. The intermediate phase was characterized by in-plane antiferroelectric Pb displacements which produce 1\over 2{110} superlattice diffraction peaks. Above 473 K the local structure of PZ remains largely unchanged, in spite of the transitions in the long-range order from the antiferroelectric to the intermediate and to the paraelectric phases.
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67
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Okazaki M, Morita K, Kochi N, Araki K, Yoshizawa M, Wada H, Shibata M, Watanabe N, Egami T, Furuya N, Kanamori M, Shimazaki S, Uchimura H. [Analysis of transmission of Burkholderia cepacia isolates in an intrahospital by randomly amplified polymorphic DNA-PCR method]. KANSENSHOGAKU ZASSHI. THE JOURNAL OF THE JAPANESE ASSOCIATION FOR INFECTIOUS DISEASES 1998; 72:688-93. [PMID: 9745217 DOI: 10.11150/kansenshogakuzasshi1970.72.688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Strains of Burkholderia cepacia isolated in our hospital from November 1995 to September 1996 were classified with randomly amplified polymorphic DNA-PCR (RAPD-PCR) and conventional biochemical tests (ID test.NF-18, API20NE, and Neg Combo 4J kit), and intrahospital isolates of B. cepacia were analysed. During the period 28 strains from inpatients and 2 from medical apparatus were isolated. Twenty four of 28 (85.7%) were from sputum. In 1996 from January to February, 20 strains were detected from 8 inpatients, and two strains were from the nebulizers at the Trauma and Critical Care Center (TCC). With typing of B. cepacia by conventional methods no epidemiological relations among isolates were found. However, DNA patterns of original isolates from the nebulizers at TCC by RAPD-PCR were identical with those of isolates in sputa from patients in other wards who had stayed at TCC, indicating that TCC was an initial source of transmission and the strain was transmitted with the patients to the wards. These results suggest that RAPD-PCR method might be a useful tool to analyse an epidemiological survey for intrahospital transmission of isolate.
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68
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Kaneko T, Uemura S, Harada H, Sugihara S, Egami T. [A case of acute empyema who underwent omentopexy and was found to have gastric cancer during operation]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 1998; 51:255-8. [PMID: 9528237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A 76-year-old man had undergone omentopexy for empyema. He was found to have gastric cancer and revealed Borrmann III by gastroendoscopy intraoperative period. Segmental gastrectomy was performed without dissection of lymph nodes, because his general condition was poor. After operation, the patient showed septic shock, ARDS and hepato-renal failure but his condition was getting improved by conservative therapy. After 5 years later, he was examined gastro-endoscopy, abdominal and chest CT and revealed no recurrence sign.
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69
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Okazaki M, Onogawa T, Araki K, Egami T, Furuya N, Endo N, Uchimura H. [Isolation frequency and biological characteristics of the multiple-antibiotic resistant Pseudomonas aeruginosa isolated from clinical specimens]. KANSENSHOGAKU ZASSHI. THE JOURNAL OF THE JAPANESE ASSOCIATION FOR INFECTIOUS DISEASES 1997; 71:1181-6. [PMID: 9483876 DOI: 10.11150/kansenshogakuzasshi1970.71.1181] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Isolation frequency of multiple-antibiotic resistant Pseudomonas aeruginosa (MARPA) was 11.9% (fifty six strains) of a total of four-hundred seventy-one strains of P. aeruginosa isolated from clinical specimens at the Kyorin University Hospital from October 1994 to December 1996. Eighteen strains of MARPA and thirteen strains of antibiotic sensitive P. aeruginosa (ASPA) isolated from clinical specimens in internal medicine ward A were determined O serotype, and characterized with production of pyocyanin, pyoverdin, hemolysin, elastase, and caseinase. Sixteen strains (88.9%) of MARPA were identified as serotype C. The ability to produce pyocyanin, hemolysin, elastase, and caseinase was not detected in all MARPA. One side, thirteen strains of ASPA showed various serotypes, i.e., B: 5 strains (38.4%), G: 4 strains (30.8%), C: 2 strains (15.4%), E: 1 strain (7.7%) and unknown type: 1 strain (7.7%), and the production of both hemolysin and pyoverdin was observed in 13 strains (100%), pyocyanin in 8 strains (61.5%), elastase and caseinase in 9 strains (69.2%) of ASPAs, which suggests that ASPAs do maintain the synthetic ability of pathogenic factors and pigments, but MARPAs do not. These results indicate that from epidemiological points of view the current strains of MARPA spread from one clone within the internal medicine ward A with nosocomial outbreak by serotype C.
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70
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Egami T, Louca D, McQueeney RJ. Nonuniform metallic state in manganites and cuprates. ACTA ACUST UNITED AC 1997. [DOI: 10.1007/bf02765712] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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71
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McQueeney RJ, Egami T, Shirane G, Endoh Y. Wide and asymmetric oxygen bond-stretching phonons in La1.85Sr0.15CuO4. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:R9689-R9692. [PMID: 9984793 DOI: 10.1103/physrevb.54.r9689] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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72
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Mitsuyama S, Kuroda Y, Ohsato K, Nakamura Y, Murakami F, Nishikata F, Ikeda S, Egami T, Mori A, Ohe H. [Administration method and recurrence-preventing effect of medroxyprogesterone acetate (MPA) as a postoperative adjuvant endocrine therapy for stage III breast cancer. Kitakyushu Collaborative Study Group for Breast Cancer]. Gan To Kagaku Ryoho 1996; 23:1153-60. [PMID: 8751803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
By a collaborative study undertaken by 11 medical institutions in the Kita-Kyushu area, we evaluated the clinical efficacy of the combination of medroxyprogesterone acetate (MPA) and Tamoxifen (TAM) as a postoperative adjuvant endocrine therapy for Stage III breast cancer. First, 1 course of CAF therapy was administered; then, in combination with the basic therapy of 5-FU 200 mg/day p. o. for 3 years, ER (+) patients were treated with either 2-week sequential therapy of TAM (30 mg/day) and MPA (800 mg/day) or TAM (30 mg/day), and ER (-) patients received either MPA (800 mg/day) or 5-FU alone. Neither survival nor disease-free rates of the 92 analyzable patients were different between these treatment groups. Furthermore, the blood levels of MPA and cortisol had no correlation with survival and disease-free periods. We studied the effect of MPA on the natural inhibitors of blood coagulation, but found no difference from the result in healthy adults. It was, however, shown that MPA had a bone marrow-protecting effect.
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73
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Ishihara S, Tachiki M, Egami T. Electronic polarizability in a correlated electron system with strong covalency. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:15563-15570. [PMID: 9983388 DOI: 10.1103/physrevb.53.15563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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74
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Hirscher M, Marinero EE, Egami T. Domain Nucleation and Wall Velocity in Magneto-Optical Amorphous Thin Films. ACTA ACUST UNITED AC 1996. [DOI: 10.1002/pssa.2211540229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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75
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Kimura M, Kuno-Sakai H, Kamiya H, Ueda K, Isomura S, Koike M, Kato T, Ozaki T, Hirose M, Egami T. Immunogenicity and reactogenicity of the component acellular pertussis vaccine produced by a combination of column purified pertussis toxin and filamentous haemagglutinin. ACTA PAEDIATRICA JAPONICA : OVERSEAS EDITION 1995; 37:562-74. [PMID: 8533580 DOI: 10.1111/j.1442-200x.1995.tb03378.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
This is the report on a prospective, single blind, comparative study of a component acellular pertussis vaccine produced by a combination of detoxified, column purified pertussis toxin (PT) and filamentous hemagglutinin (FHA) combined with diphtheria and tetanus toxoids (DTcaP) and the traditional acellular pertussis vaccine produced with essentially the same method as described by Sato with DT (DTaP) of the same manufacturer. A total of 616 infants and children received DTcaP and a total of 289 received DTaP. In all age groups for both vaccines values of serum antibodies to PT and FHA after two doses of the vaccines were comparable to those of convalescent sera. Incidences of systemic and local reactions were, in general, not greatly different between DTcaP and DTaP recipients. In Japan the use of traditional acellular vaccines replaced whole cell vaccines in 1981. Protective antigens of Bordetella pertussis have now been specified and thus component vaccines have become theoretically possible. This is the first component vaccine which has been developed in Japan. Several other component vaccines are now under investigation in the world.
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