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Sabouri Z, Okazaki IM, Shinkura R, Begum N, Nagaoka H, Honjo T. Author's reply: Apex2 is required for efficient somatic hypermutation but not for class switch recombination of immunoglobulin genes. Int Immunol 2010. [DOI: 10.1093/intimm/dxq002] [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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Nagaoka H. I. Diffraction phenomena in the focal plane of a telescope with circular aperture, due to a finite source of light. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/14786449808621101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Nagaoka H, Honda K. IV. On the magnetostriction of Steel, Nickel, Cobalt, and Nickel-Steels. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/14786440209462817] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Nagaoka H. LV. Kinetics of a system of particles illustrating the line and the band spectrum and the phenomena of radioactivity. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/14786440409463141] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ushiyama T, Tanaka H, Nagaoka H, Mizuno T, Someya T, Ito F, Tamura K, Arai H. [Mitral valve repair with concomitant coronary bypass for partial rupture of an anterior papillary muscle]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2007; 60:1158-1162. [PMID: 18078082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We report a case of severe mitral regurgitation due to partial rupture of an anterior papillary muscle. A 63-year-old man was admitted to a hospital with heart failure. He was treated with diuretic agents effectively. Echocardiography demonstrated severe mitral regurgitation with prolapse of posterior leaflet and small mass-like structure on the prolapsed segment that was diagnosed the thickened leaflet. Coronary angiography revealed total occlusion of left anterior descending artery (LAD) filled with good collateral from right posterior descending artery and severe diffuse stenosis of circumflex artery (Cx). The patient underwent surgery on the 33rd day after admission with heart failure. At surgery, we recognized rupture of one of the heads of anterior papillary muscle that was entangled in chordae of the prolapsed segment. Mitral valve repair and coronary revascularization to LAD and Cx was successfully performed. His postoperative course was uneventful, and he was discharged on the 28th postoperative day.
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Nagaoka H, Kurosaka M, Shibata N, Kobayashi M. Effect of bubble flow velocity on drag-force and shear stress working on submerged hollow fibre membrane. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2006; 54:185-92. [PMID: 17165462 DOI: 10.2166/wst.2006.818] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
This study is aimed at elucidating the mechanism by which rising air bubbles induce shear stress on hollow fibre membrane surfaces. Shear stress on hollow fibre membrane surfaces (laterally-set and vertically-set) caused by aeration was measured directly using a two-direction load sensor. In the laterally-set hollow fibre module, time-averaged upward-direction shear stress on the membrane surface was compared to theoretical shear stress values considering the effect of water flow on membrane surface. Measured time-average shear stress values were almost 200 times larger than theoretical values implying strong interactions between bubbles and solid surface. In the vertically-set membrane module, velocity measurement of bubble flow using laser Doppler velocimeter revealed that drag force working on membrane surface was closely related to upward-direction water velocity. Also fluctuation of drag force and shear force on membrane surface was found to be related to velocity fluctuation (turbulence).
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Nagaoka H, Nemoto H. Influence of extracellular polymeric substances on nitrogen removal in an intermittently-aerated membrane bioreactor. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2005; 51:151-8. [PMID: 16114628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Influence of EPS on fouling of intermittent aeration MBR reactor (denitrification MBR) was investigated changing intermittent aeration cycle (10 minute-cycle and 120 minute-cycle) in laboratory-scale reactors using synthetic wastewater. EPS were extracted from bacterial cells using cation resin method and molecular weight fractioning of EPS was conducted using gel chromatography. In both of the reactors, nitrogen removal rate was almost 100% after 50th day although DO concentration was not very high during the aerated phase because of accumulation of nitrifying bacteria in the reactors. In the 120 minutes-cycle reactor, trans-membrane pressure increased more rapidly than in the 10 minutes-cycle reactor. The reason might be that EPS of more than 1000 kDa, which are the main fouling substances, are produced more rapidly in the 120 minute-cycle condition. It was also found that three peaks at around 100 kDa, 500 kDa and 2000 kDa are prominent in EPS in intermittent-aeration MBR irrespective of cycle and higher molecular weight EPS are decomposed to smaller molecular weight EPS on membrane surface.
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Ujang Z, Ng SS, Nagaoka H. Package plant of extended aeration membrane bioreactors: a study on aeration intensity and biofouling control. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2005; 51:335-42. [PMID: 16104438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Biofouling control is important for effective process of membrane bioreactor (MBR). In this study, phenomena of biofouling for immersed type extended aeration MBR with two different anti-fouling aeration intensities were studied through a laboratory set up. The objectives of this study were (a) to observe biofouling phenomena of MBR that operates under different anti-fouling bubbling intensity, and simultaneously monitors performance of the MBR in organic carbon and nutrients removal; (b) to compare effectiveness of detergent and detergent-enzyme cleaning solutions in recovering biofouled membranes that operated in the extended aeration MBR. For MBR, which operated under continuous anti-fouling aeration, deposition and accumulation of suspended biomass on membrane surface were prohibited. However, flux loss was inescapable that biofilm layer was the main problem. Membrane cleaning was successfully carried out with detergent-enzyme mixture solutions and its effectiveness was compared with result from cleaning with just detergent solution.
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Yamada T, Oinuma T, Sueyoshi S, Mitsumata M, Watanabe H, Ueno T, Fujioka T, Hasegawa K, Nagaoka H, Itakura H. 2P-0564 Effects of Lentinus edodes mycelia on dietary-induced atherosclerosis in rabbit aorta with morphometric analyses. ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)90703-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Nagaoka H, Takamine T. The Constitution of Mercury Lines examined by an Echelon Grating and a Lummer-Gehrcke Plate. ACTA ACUST UNITED AC 2002. [DOI: 10.1088/1478-7814/25/1/301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Nagaoka H, Rutsch W, Schmid G, Iio H, Johnson MR, Kishi Y. Total synthesis of rifamycins. 1. Stereocontrolled synthesis of the aliphatic building block. J Am Chem Soc 2002. [DOI: 10.1021/ja00547a037] [Citation(s) in RCA: 119] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Iio H, Nagaoka H, Kishi Y. Total synthesis of rifamycins. 2. Total synthesis of racemic rifamycin S. J Am Chem Soc 2002. [DOI: 10.1021/ja00547a038] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Nagaoka H, Kudo C. Effect of loading rate and intermittent aeration cycle on nitrogen removal in membrane separation activated sludge process. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2002; 46:119-126. [PMID: 12420974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The performance of the submerged membrane separation activated sludge process with intermittent aeration was investigated in a laboratory scale experiment by changing organic loading rate and intermittent aeration cycle. A rectangular PVC tank was used as an aeration tank, in which a flat-sheet type Micro-Filtration membrane made of poly-olefin with a pore size of 0.2 microm was submerged. Organic loading rate to the reactor was set at 0.3 and 0.8 g-TOC/L/day. C/N ratio in the feed was set at around 5.0 for every condition. Aeration cycle was changed from 10 min-10 min (aeration-stop) to 120 min-120 min in different organic loading conditions. Flux through the membrane was set at 0.25 m/day. Membrane fouling proceeded rapidly in 0.8 g-TOC/L/day conditions. However, when organic loading rate was 0.3 g-TOC/L/day, bacterial metabolic substances were degraded rapidly compared to the production, thereby decreasing viscosity in mixed liquor. Nitrogen removal rate was between 60% and 80% for 0.8 g-TOC/L/day loading, and between 50% and 65% for 0.3 g-TOC/L/day loading. And the nitrogen removal was highest in 40 min to 60 min aeration cycle conditions. Too short aeration cycle did not result in sufficiently long anoxic periods for denitrification while too long a cycle resulted in unnecessary anaerobic periods after depletion of nitrate. Intermittent aeration was effective also for decreasing viscosity in mixed liquor.
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Ujang Z, Au YL, Nagaoka H. Comparative study on microbial removal in immersed membrane filtration (IMF) with and without powdered activated carbon (PAC). WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2002; 46:109-115. [PMID: 12448459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
This paper describes an investigation on the effect of microbial removal using IMF for high quality drinking water production. The comparison of IMF and IMF-PAC configuration was carried out in the study to highlight the importance of PAC in the system. The specific objective of this study was to study the effect of PAC adsorption in the IMF-PAC system particularly in removing microbial substances from contaminated raw water. A bench scale IMF-PAC configuration using a flat sheet microfiltration membrane was set up for experimental purposes. Experimentally, the result has shown high removal of microbial substances with the IMF-PAC system compared to IMF. The result of E. coli removal achieved was below the detectable level due to the microbial size, which is bigger than membrane pore size. The addition of PAC has shown a direct effect on total microbial removal. The adsorption of microbial onto PAC surfaces reduced the amount of smaller microbial present in permeate samples. As a conclusion, the configuration of IMF is a promising separation process in removing microbial substances, especially when the system is combined with PAC.
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Noor MJMM, Muyibi SA, Ahmed T, Ghazall AH, Jusoh A, Idris A, Ahmadun FR, Nagaoka H, Aya H. Performance of an extended aeration-microfiltration (EAM) reactor in treating high strength industrial wastewater. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2002; 46:331-338. [PMID: 12448486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A laboratory study was conducted on an Extended Aeration-Microfiltration (EAM) reactor in treating a food industry wastewater. The reactor contained horizontally laid hollow fibre microfiltration (MF) units that were fully submerged. The MF units were connected to a peristaltic pump that was used to extract permeate continuously under suction pressure. Continuous aeration from beneath the modules provided the crossflow effect to the MF units. Active activated sludge was used in the start-up where the sludge was mixed together with the feed water at a Food/Microorganisms (F/M) value of about 0.1. Primary effluent with Chemical Oxygen Demand (COD) values ranged between 1,500 and 3,000 mg/l was used as feed water. The EAM reactor was operated for nearly three months without initiating cleaning of the MF units. A suction pressure of 0.9 bar and Mixed Liquor Suspended Solids (MLSS) of over 5,500 mg/l were reached when nearing the end of the three month operation period. Permeate COD and turbidity reduction of over 97% and 99% respectively, were achieved. Prior to this, the MF module arrangements were studied; where vertically arranged modules were found to perform poorly as compared to the horizontally laid modules, in terms of clean water permeate flux.
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Shimoyama T, Hirooka K, Ohnuki M, Nagaoka H. [A case of extracardiac unruptured aneurysm of sinus of Valsalva with obstruction of the right coronary artery and aortic regurgitation]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2001; 54:1045-8. [PMID: 11712376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
A 67-year-old female was admitted to our hospital with heart failure. Echocardiography, chest CT and MRA revealed an unruptured aneurysm of sinus of Valsalva. Cardiac catheterization and angiography detected obstruction of the ostium of the right coronary artery and moderate aortic regurgitation. Operative findings showed an extracardiac unruptured aneurysm arising from the right sinus of Valsalva. The orifice of the aneurysm was closed with Gore-Tex patch, then aortic valve replacement combined with single CABG to RCA was simultaneously performed. The pathological findings strongly suggested its acquired origin.
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Sahara K, Sugieda M, Nagaoka H, Akiyama M, Uenoyama H, Nakajima S. [Incidence of amantadine-resistant influenza A virus isolated in 1999/2000. Epidemic season in Shizuoka Prefecture]. KANSENSHOGAKU ZASSHI. THE JOURNAL OF THE JAPANESE ASSOCIATION FOR INFECTIOUS DISEASES 2001; 75:576-7. [PMID: 11521282 DOI: 10.11150/kansenshogakuzasshi1970.75.576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Nagasawa M, Iino Y, Horiguchi J, Takei H, Maemura M, Horii Y, Matsumoto H, Nagaoka H, Oyama T, Nakajima T, Morishita Y. Sudden hemorrhage of the breast caused by breast cancer: a case report and review of the literature. Breast Cancer 2001; 7:176-8. [PMID: 11029794 DOI: 10.1007/bf02967454] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
A rare case of sudden hemorrhage caused by breast cancer is reported. A 71-year-old woman noted bleeding from her left breast. Physical examination of the left breast showed a localized open cavity accompanied by bleeding and coagulation. The patient had no history of breast trauma or anticoagulation therapy. Incisional biopsy followed by histological examination resulted in a diagnosis of granulation tissue with no cancer cells present. Mammography and ultrasonography indicated probable breast cancer. As a result, a second incisional biopsy was performed, which suggested invasive ductal carcinoma without histological skin invasion. A modified radical mastectomy was performed under a diagnosis of stage II breast cancer. Breast cancer with sudden hemorrhage is rare. We review the literature and discuss the cause of this unusual manifestation.
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Tsuneoka H, Ouchi K, Nagaoka H, Ishida C, Iino H, Murakami K, Tsujino K, Umeda A, Tsukahara M. [Serological cross-reaction among Bartonella henselae, Chlamydia pneumoniae and Coxiella burnetii by indirect fluorescence antibody method]. KANSENSHOGAKU ZASSHI. THE JOURNAL OF THE JAPANESE ASSOCIATION FOR INFECTIOUS DISEASES 2001; 75:406-10. [PMID: 11424490 DOI: 10.11150/kansenshogakuzasshi1970.75.406] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We studied the serological cross-reactions among Bartonella henselae, Chlamydia pneumoniae and Coxiella burnetii by indirect fluorescence antibody (IFA) method, using sera from 8 patients with cat scratch disease (CSD), 13 patients with C. pneumoniae infection and 12 patients with acute Q fever. B. henselae IgG antibody was negative in 13 patients with C. pneumoniae infection, and was positive in 3 (titers being 1:64) of 12 patients with Q fever, whereas B. henselae IgM antibody was negative in all the patients with C. pneumoniae infection or Q fever. C. burnetii IgG antibody was removed by absorption of these 3 sera with C. burnetii antigens, whereas B. henselae IgG antibody did not change. C. pneumoniae IgG antibody was positive in 3 (titers being 1:125 in two, 1:32 in one) of 8 patients with CSD. Both C. pneumoniae and B. henselae IgG antibody titers were significantly reduced by absorption of these 3 sera with B. henselae antigens. C. burnetii IgG or IgM antibodies were negative in all patients with CSD. In conclusion, no serological cross-reaction between B. henselae and C. burnetii was observed. On the other hand. B. henselae IgG antibody cross-reacted to C. pneumoniae antigens, whereas C. pneumoniae IgG antibody did not cross-react to B. henselae antigens. Our findings suggest that determination of B. henselae IgG or IgM antibodies were not influenced by C. pneumoniae and C. burnetii antigens.
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Morisawa Y, Wakiguchi H, Takechi T, Kurashige T, Nagaoka H. Intractable Q fever treated with recombinant gamma interferon. Pediatr Infect Dis J 2001; 20:546-7. [PMID: 11368119 DOI: 10.1097/00006454-200105000-00018] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A 3-year-old boy with Q fever received several kinds of antibiotics including minocycline, but spiking fever and positive PCR of Coxiella burnetii continued for several months. He became asymptomatic and his abnormal laboratory data normalized after the administration of gamma interferon three times a week.
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Yu W, Nagaoka H, Misulovin Z, Meffre E, Suh H, Jankovic M, Yannoutsos N, Casellas R, Besmer E, Papavasiliou F, Qin X, Nussenzweig MC. RAG expression in B cells in secondary lymphoid tissues. COLD SPRING HARBOR SYMPOSIA ON QUANTITATIVE BIOLOGY 2001; 64:207-10. [PMID: 11232286 DOI: 10.1101/sqb.1999.64.207] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Nagaoka H, Kayahara H, Wakabayashi Y. Resolution and synthesis of optically active alcohols with immobilized ovalbumin and pea protein as new bio-catalysts. Biosci Biotechnol Biochem 2001; 65:634-7. [PMID: 11330679 DOI: 10.1271/bbb.65.634] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
It was found that ovalbumin stereoselectively oxidized one of the enantiomers of p-substituted racemic alcohols, thereby providing optically active alcohols with high optical purities. It was found out that, when used appropriately in combination with immobilized pea protein, immobilized ovalbumin made it possible to resolve and synthesize racemic 1-(2-naphthyl)ethanol, 1-phenylethanol, and 1-phenyl-1-propanol. Immobilized ovalbumin could be continuously recycled at least three times without lowering the yield and purity of the products. These results suggested that cereals, beans, and ovalbumin might have additional fourth function among conventional foods. Namely, there might contain nutritional, sensory, biologically regulatory and bio-catalytic functions in conventional foods.
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Ariga T, Nagaoka H, Miyanoshita A, Kusunoki Y, Watanabe T, Shinohara T, Sakiyama Y. Coxiella burnetii lymphadenitis: a possible fever focus in acute Q fever. Pediatr Int 2000; 42:711-4. [PMID: 11192537 DOI: 10.1046/j.1442-200x.2000.01290.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Yoshimitsu T, Yanagisawa S, Nagaoka H. Asymmetric synthesis of the core structure of (-)-CP-263,114. Org Lett 2000; 2:3751-4. [PMID: 11073692 DOI: 10.1021/ol000290o] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The enantioselective construction of a fully functionalized core structure of (-)-CP-263,114 (1), containing most of the required functionality for total synthesis, was conducted through sequential radical fragmentation-reductive olefination.
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