51
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Manabe R, Okada S, Inagaki R, Oshima K, Ogo S, Sekine Y. Surface Protonics Promotes Catalysis. Sci Rep 2016; 6:38007. [PMID: 27905505 PMCID: PMC5131306 DOI: 10.1038/srep38007] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 11/04/2016] [Indexed: 12/21/2022] Open
Abstract
Catalytic steam reforming of methane for hydrogen production proceeds even at 473 K over 1 wt% Pd/CeO2 catalyst in an electric field, thanks to the surface protonics. Kinetic analyses demonstrated the synergetic effect between catalytic reaction and electric field, revealing strengthened water pressure dependence of the reaction rate when applying an electric field, with one-third the apparent activation energy at the lower reaction temperature range. Operando–IR measurements revealed that proton conduction via adsorbed water on the catalyst surface occurred during electric field application. Methane was activated by proton collision at the Pd–CeO2 interface, based on the inverse kinetic isotope effect. Proton conduction on the catalyst surface plays an important role in methane activation at low temperature. This report is the first describing promotion of the catalytic reaction by surface protonics.
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52
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Shi H, Bazzi M, Beer G, Bellotti G, Berucci C, Bragadireanu A, Bosnar D, Cargnelli M, Curceanu C, Butt A, d’Uffizi A, Fiorini C, Ghio F, Guaraldo C, Hayano R, Iliescu M, Ishiwatari T, Iwasaki M, Levi Sandri P, Marton J, Okada S, Pietreanu D, Piscicchia K, Romero Vidal A, Sbardella E, Scordo A, Sirghi D, Sirghi F, Tatsuno H, Vazquez Doce O, Widmann E, Zmeskal J. Precision X-ray spectroscopy of kaonic atoms as a probe of low-energy kaon-nucleus interaction. EPJ WEB OF CONFERENCES 2016. [DOI: 10.1051/epjconf/201612604045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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53
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Lindenmayer DB, Mortelliti A, Ikin K, Pierson J, Crane M, Michael D, Okada S. The vacant planting: limited influence of habitat restoration on patch colonization patterns by arboreal marsupials in south‐eastern Australia. Anim Conserv 2016. [DOI: 10.1111/acv.12316] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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54
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Tanaka H, Kato A, Kawaguchi M, Yamaguchi T, Kitahara M, Matsuyama K, Okada S, Matsuo M. Pelvic Insufficiency Fractures After Whole-Pelvic Irradiation for Uterine Cervical Cancer. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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55
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Tanaka H, Yamaguchi T, Kawaguchi M, Okada S, Matsuo M. Pretreatment Maximum Standardized Uptake Value on 18F-Fluorodeoxyglucose Positron Emission Tomography Is a Predictor of Outcome for Stage I Non-Small Cell Lung Cancer After Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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56
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Matsubara E, Okada S, Ichitsubo T, Kawaguchi T, Hirata A, Guan PF, Tokuda K, Tanimura K, Matsunaga T, Chen MW, Yamada N. Initial Atomic Motion Immediately Following Femtosecond-Laser Excitation in Phase-Change Materials. PHYSICAL REVIEW LETTERS 2016; 117:135501. [PMID: 27715090 DOI: 10.1103/physrevlett.117.135501] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Indexed: 06/06/2023]
Abstract
Despite the fact that phase-change materials are widely used for data storage, no consensus exists on the unique mechanism of their ultrafast phase change and its accompanied large and rapid optical change. By using the pump-probe observation method combining a femtosecond optical laser and an x-ray free-electron laser, we substantiate experimentally that, in both GeTe and Ge_{2}Sb_{2}Te_{5} crystals, rattling motion of mainly Ge atoms takes place with keeping the off-center position just after femtosecond-optical-laser irradiation, which eventually leads to a higher symmetry or disordered state. This very initial rattling motion in the undistorted lattice can be related to instantaneous optical change due to the loss of resonant bonding that characterizes GeTe-based phase change materials. Based on the amorphous structure derived by first-principles molecular dynamics simulation, we infer a plausible ultrafast amorphization mechanism via nonmelting.
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57
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Shimada J, Ito K, Okada S, Abe K, Inoue M. P-227NOVEL POROUS POLYPROPYLENE DISSECTOR WITH SURGICAL SMOKE EVACUATION SYSTEM. Interact Cardiovasc Thorac Surg 2016. [DOI: 10.1093/icvts/ivw260.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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58
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Okada S, Katagiri K, Kumazaki T, Yokoyama H. Safety of gadolinium contrast agent in hemodialysis patients. Acta Radiol 2016; 42:339-41. [PMID: 11350296 DOI: 10.1080/028418501127346756] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Purpose: We evaluated the safety of a gadolinium (Gd) contrast agent in hemodialysis patients. Material and Methods: Seventy hemodialysis patients underwent contrast-enhanced MR examination. After the examination, the patients were hemodialyzed on a usual schedule, i.e., 3 times per week at 4 h each session. The hemodialysis was performed on the same day in 16 patients, the next day in 34, 2 days later in 14 and 3 days later in 6 patients. Serum Gd concentrations before and after the first to fourth hemodialysis sessions were analyzed in 11 patients. Cardiovascular, cutaneous, respiratory, psycho-neurological and digestive side effects were evaluated in all patients. Changes in liver and kidney functions, blood counts, and electrolytes were also checked. Results and Conclusion: Neither side effects nor blood changes were noted in any of the patients. Average excretory rates were 78.2%, 95.6%, 98.7% and 99.5% in the first to fourth hemodialysis sessions, respectively. These results suggest that Gd contrast agents can be used in hemodialysis patients if hemodialysis is carried out promptly after the examination.
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59
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Abstract
Cytokinesis is essential for development and survival of all organisms by increasing cell number and diversity. It is a highly regulated process that requires spatiotemporal coordination of hundreds of proteins functioning in the assembly, constriction, and disassembly of a contractile actomyosin ring, targeted vesicle fusion, and localized extracellular matrix remodeling. Cytokinesis has been studied in multiple systems with a wide range of technologies to learn the common principles. In this chapter, we describe the analysis of protein dynamics during cytokinesis in the budding yeast Saccharomyces cerevisiae by several live-cell imaging methods. This, in combination with the power of yeast genetics, has yielded novel insights into the mechanism of cytokinesis. Similar approaches are increasingly used to study this fundamental process in more complex systems.
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60
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Demongeot A, Mougnier SJ, Okada S, Soulié-Ziakovic C, Tournilhac F. Coordination and catalysis of Zn2+ in epoxy-based vitrimers. Polym Chem 2016. [DOI: 10.1039/c6py00752j] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Network-coordinated Zn2+ ions activate carbonyls, promote alkoxides and hold reactants close to each other for transesterification.
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61
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Tatsuno H, Bazzi M, Beer G, Bellotti G, Berucci C, Bragadireanu A, Bosnar D, Cargnelli M, Curceanu C, Butt A, d’Uffizi A, Fiorini C, Ghio F, Guaraldo C, Hayano R, Iliescu M, Ishiwatari T, Iwasaki M, Levi Sandri P, Marton J, Okada S, Pietreanu D, Piscicchia K, Romero Vidal A, Sbardella E, Scordo A, Shi H, Sirghi D, Sirghi F, Vazquez Doce O, Widmann E, Zmeskal J. Future projects of light kaonic atom X-ray spectroscopy. EPJ WEB OF CONFERENCES 2016. [DOI: 10.1051/epjconf/201613001018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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62
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Marton J, Bazzi M, Beer G, Berucci C, Bosnar D, Bragadireanu A, Cargnelli M, Clozza A, Curceanu C, d’Uffizi A, Fiorini C, Ghio F, Guaraldo C, Hayano R, Iliescu M, Ishiwatari T, Iwasaki M, Sandri PL, Okada S, Pietreanu D, Piscicchia K, Ponta T, Quaglia R, Vidal AR, Sbardella E, Scordo A, Shi H, Sirghi D, Sirghi F, Tatsuno H, Doce OV, Widmann E, Zmeskal J. Strong interaction studies with kaonic atoms. EPJ WEB OF CONFERENCES 2016. [DOI: 10.1051/epjconf/201611303009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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63
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Horvath TA, Hirano T, Horvathova MD, Vomela J, Vyzula R, Cı́halová M, Dorociak F, Ebihara Y, Furukawa K, Habanec B, Ikeda N, Kakihana M, Klusáková J, Okada S, Rejthar A, Stratil D, Shaffi-Sahely A, Smajer B, Spelda S, Tsuboi M, Vagunda V, Wurst F, Kato H. Autofluorescence (safe) bronchoscopy and p21/ki-67 immunostaining related to carcinogenesis. Photodiagnosis Photodyn Ther 2015; 1:13-22. [PMID: 25048060 DOI: 10.1016/s1572-1000(04)00005-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Archival biopsy materials from 20 randomly selected asymptomatic volunteers from the Czech uranium miners (CZ UM) risk group (n=98) were examined for p21 and ki-67 immunostatning. There were 16 areas with normal respiratory epithelium and 22 areas with bronchial intra-epithelial neoplasia (IEN). Normal and IEN areas were identified by autofluorescence (System Autofluorescence Endoscopy, SAFE-1000) and monitored during 1998-2002. The majority of specimens from areas with normal autofluorescence intensity with ciliated columnar bronchial epithelium showed strong predominantly cytoplasmic p21 positivity. The SAFE monitoring divided areas of decreased autofluorescence intensity with early stage IEN lesions into two groups. Persistent lesions (P)-showing a spectrum of p21 cytoplasmic staining ranging from negative or isolated negativity to weak or moderate positivity combined with higher proliferative capacity proved by ki-67 nuclear staining. Disappearing lesions (D)-showing strong cytoplasmic p21 positivity and negative ki-67 staining. The IEN lesions were classified into three groups based on p21/ki-67 immunostaining: proliferative lesions at risk (R) with low or without p21 plasma immunostaining combined with high ki-67 nuclear reactivity; ambiguous lesions (A) including cases combining strong p21 cytoplasmic positivity with high ki-67 nuclear reactivity or p21 cytoplasmic negativity with ki-67 negativity staining patterns; the quiescent lesion group (Q) was characterized by strong p21 cytoplasmic positivity and negative ki-67 immunostaining.
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64
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Kubota K, Kobayakaya K, Okada S, Shiba K, Iwamoto Y. Hyperglycemia During Acute Spinal Cord Injury Is a Detrimental Factor That Impairs Functional Improvement in Acute C3-C4 Cervical Cord Injury Patients Without Any Bony Damages. Intensive Care Med Exp 2015. [PMCID: PMC4797914 DOI: 10.1186/2197-425x-3-s1-a33] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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65
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Matsumoto D, Yanagi K, Takenobu T, Okada S, Marumoto K. Electrically induced ambipolar spin vanishments in carbon nanotubes. Sci Rep 2015; 5:11859. [PMID: 26148487 PMCID: PMC4493558 DOI: 10.1038/srep11859] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 06/09/2015] [Indexed: 11/16/2022] Open
Abstract
Carbon nanotubes (CNTs) exhibit various excellent properties, such as ballistic transport. However, their electrically induced charge carriers and the relation between their spin states and the ballistic transport have not yet been microscopically investigated because of experimental difficulties. Here we show an electron spin resonance (ESR) study of semiconducting single-walled CNT thin films to investigate their spin states and electrically induced charge carriers using transistor structures under device operation. The field-induced ESR technique is suitable for microscopic investigation because it can directly observe spins in the CNTs. We observed a clear correlation between the ESR decrease and the current increase under high charge density conditions, which directly demonstrated electrically induced ambipolar spin vanishments in the CNTs. The result provides a first clear evidence of antimagnetic interactions between spins of electrically induced charge carriers and vacancies in the CNTs. The ambipolar spin vanishments would contribute the improvement of transport properties of CNTs because of greatly reduced carrier scatterings.
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66
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Nakagomi A, Okada S, Shoji T, Kobayashi Y. 2D.08. J Hypertens 2015. [DOI: 10.1097/01.hjh.0000467429.87677.d1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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67
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Harada N, Okada S, Kunimune S, Nishimura T. Prefrontal activation during a consecutive calculation related strategies for postural control in human adults: a fNIRS study. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.3332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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68
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Inamoto Y, Saitoh E, Okada S, Kagaya H, Shibata S, Baba M, Onogi K, Hashimoto S, Katada K, Wattanapan P, Palmer JB. Anatomy of the larynx and pharynx: effects of age, gender and height revealed by multidetector computed tomography. J Oral Rehabil 2015; 42:670-7. [DOI: 10.1111/joor.12298] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2015] [Indexed: 11/30/2022]
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69
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Yabuuchi H, Okada S, Nishigaki M, Kobata A. Studies on the pathogenesis of mucolipidosis. MONOGRAPHS IN HUMAN GENETICS 2015; 10:27-31. [PMID: 723901 DOI: 10.1159/000401561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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70
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Lindenmayer DB, Lane PW, Westgate MJ, Crane M, Michael D, Okada S, Barton PS. An empirical assessment of the focal species hypothesis. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2014; 28:1594-1603. [PMID: 25048948 DOI: 10.1111/cobi.12330] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 02/26/2014] [Indexed: 06/03/2023]
Abstract
Biodiversity surrogates and indicators are commonly used in conservation management. The focal species approach (FSA) is one method for identifying biodiversity surrogates, and it is underpinned by the hypothesis that management aimed at a particular focal species will confer protection on co-occurring species. This concept has been the subject of much debate, in part because the validity of the FSA has not been subject to detailed empirical assessment of the extent to which a given focal species actually co-occurs with other species in an assemblage. To address this knowledge gap, we used large-scale, long-term data sets of temperate woodland birds to select focal species associated with threatening processes such as habitat isolation and loss of key vegetation attributes. We quantified co-occurrence patterns among focal species, species in the wider bird assemblage, and species of conservation concern. Some, but not all, focal species were associated with high levels of species richness. One of our selected focal species was negatively associated with the occurrence of other species (i.e., it was an antisurrogate)-a previously undescribed property of nominated focal species. Furthermore, combinations of focal species were not associated with substantially elevated levels of bird species richness, relative to levels associated with individual species. Our results suggest that although there is some merit to the underpinning concept of the FSA, there is also a need to ensure that actions are sufficiently flexible because management tightly focused on a given focal species may not benefit some other species, including species of conservation concern, such of which might not occur in species-rich assemblages.
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71
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Okada S, Hasegawa S, Suzuki Y, Matsubara T, Shimomura M, Okuda M, Ichiyama T, Ohga S. Acute pericardial effusion representing the TNF-α-mediated severe inflammation but not the coronary artery outcome of Kawasaki disease. Scand J Rheumatol 2014; 44:247-52. [DOI: 10.3109/03009742.2014.956140] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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72
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Kobayakawa K, Kumamaru H, Saiwai H, Kubota K, Ohkawa Y, Kishimoto J, Yokota K, Ideta R, Shiba K, Tozaki-Saitoh H, Inoue K, Iwamoto Y, Okada S. Acute hyperglycemia impairs functional improvement after spinal cord injury in mice and humans. Sci Transl Med 2014; 6:256ra137. [DOI: 10.1126/scitranslmed.3009430] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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73
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Nagoshi M, Makiishi N, Hamada E, Kawano T, Ishii K, Okada S, Sato M. Crystal structure of oxide layers on Mo-added Fe-Cr Alloys studied by GIXS and XPS. SURF INTERFACE ANAL 2014. [DOI: 10.1002/sia.5435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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74
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Okuma Y, Tanuma J, Otera H, Kojima Y, Yotsumoto M, Uehira T, Takeda Y, Nagai H, Ajisawa A, Setoguchi Y, Okada S. A Multi-Institutional Surveillance of Clinicopathological Features and Molecular Epidemiology of Egfr Mutations in Lung Cancer Patients Living with Human Immunodeficiency Virus Infection in Japan. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu357.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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75
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Tazuke Y, Matsuda K, Okada S, Tsukada Y. A Novel Sulfatase fromPseudomonas testosteroniHydrolyzing Lithocholic Acid Sulfate. Biosci Biotechnol Biochem 2014; 56:1584-8. [PMID: 1369058 DOI: 10.1271/bbb.56.1584] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Pseudomonas testosteroni ATCC 11996 was found to produce a novel bile acid sulfate sulfatase that hydrolyzes the sulfate ester bond in lithocholic acid sulfate (LCA-S). The enzyme synthesis was induced by several kinds of bile acids including LCA-S. Mn2+ functioned as an essential component for the enzyme synthesis and SO4(2-) suppressed it. This sulfatase hydrolyzes LCA-S to isolithocholic acid and sulfuric acid with inversion of alpha- to beta-configuration of the hydroxyl group at the third position of lithocholic acid.
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