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  1. Book ; Online: Methane concentrations in sediments of ODP sites 186-1150 and 186-1151, supplementary data to: Ijiri, Akira; Tsunogai, Urumu; Gamo, Toshitaka; Nakagawa, Fumiko; Sakamoto, Tatsuhiko; Saito, Saneatsu (2009): Enrichment of adsorbed methane in authigenic carbonate concretions of the Japan Trench. Geo-Marine Letters, 29(5), 301-308

    Ijiri, Akira / Gamo, Toshitaka / Nakagawa, Fumiko / Saito, Saneatsu / Sakamoto, Tatsuhiko / Tsunogai, Urumu

    2009  

    Abstract: Substantial amounts of adsorbed methane were detected in authigenic carbonate concretions recovered from sedimentary layers from depths between 245 and 1,108 m below seafloor during Ocean Drilling Program Leg 186 to ODP sites 1150 and 1151 on the deep- ... ...

    Abstract Substantial amounts of adsorbed methane were detected in authigenic carbonate concretions recovered from sedimentary layers from depths between 245 and 1,108 m below seafloor during Ocean Drilling Program Leg 186 to ODP sites 1150 and 1151 on the deep-sea terrace of the Japan Trench. Methane contents were almost two orders of magnitude higher in the concretions (291-4,528 nmol/g wet wt) than in the surrounding bulk sediments (5-93 nmol/g wet wt), whereas methane/ethane ratios and stable carbon isotopic compositions were very similar. Carbonate content of surrounding bulk sediments (0.02-3.2 wet wt%) and methane content of the surrounding bulk sediments correlated positively. Extrapolation of the carbonate contents of bulk sediments suggests that 100 wt% carbonate would correspond to 1,886?732 nmol methane per g bulk sediment, which is similar to the average value observed in the carbonate concretions (1,321?1,067 nmol/g wet wt, n = 13). These data support the hypothesis that, in sediments, adsorbed hydrocarbon gases are strongly associated with authigenic carbonates.
    Language English
    Dates of publication 2009-9999
    Size Online-Ressource
    Publisher PANGAEA - Data Publisher for Earth & Environmental Science
    Publishing place Bremen/Bremerhaven
    Document type Book ; Online
    Note This dataset is supplement to doi:10.1007/s00367-009-0143-9
    DOI 10.1594/PANGAEA.772945
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  2. Book ; Conference proceedings ; Online: Stable isotope ratios and geochemical composition of authigenic carbonates from ODP Sites 186-1150 and 186-1151, supplementary data to: Ijiri, Akira; Sakamoto, Tatsuhiko; Tsunogai, Urumu; Gamo, Toshitaka; Saito, Saneatsu; Suyehiro, Kiyoshi (2003): Data report: Authigenic carbonates at Sites 1150 and 1151. In: Suyehiro, K; Sacks, IS; Acton, GD; Oda, M (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 186, 1-6

    Ijiri, Akira / Gamo, Toshitaka / Saito, Saneatsu / Sakamoto, Tatsuhiko / Suyehiro, Kiyoshi / Tsunogai, Urumu

    2003  

    Abstract: Several carbonaceous layers or fragments were recovered from sediments of Sites 1150 and 1151 on the deep-sea terrace of the Japan Trench during Leg 186. The X-ray diffraction analysis (XRD) data indicate that these are predominantly dolomitic. In this ... ...

    Abstract Several carbonaceous layers or fragments were recovered from sediments of Sites 1150 and 1151 on the deep-sea terrace of the Japan Trench during Leg 186. The X-ray diffraction analysis (XRD) data indicate that these are predominantly dolomitic. In this study, carbon and oxygen isotopes of these carbonates recovered at Sites 1150 and 1151 are presented. The oxygen isotope ratios of the dolomites analyzed range from +0.4 per mil to +4.1 per mil vs. Peedee formation belemnite (PDB) and those of calcites from +0.6 per mil to +2.8 per mil PDB. The isotopic composition of carbon varies from -7.0 per mil to +12.3 per mil PDB in dolomite and from -13.4 per mil to -24.1 per mil PDB in calcite. The wide range of carbon isotopic compositions indicates that the carbonate samples were formed by the decomposition of organic matter through reactions such as oxidation, sulfate reduction, and methane formation during diagenesis.
    Language English
    Dates of publication 2003-9999
    Size Online-Ressource
    Publisher PANGAEA - Data Publisher for Earth & Environmental Science
    Publishing place Bremen/Bremerhaven
    Document type Book ; Conference proceedings ; Online
    Note This dataset is supplement to doi:10.2973/odp.proc.sr.186.109.2003
    DOI 10.1594/PANGAEA.783555
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  3. Book: High performance membranes dialyzers

    Saito, Akira

    21 tables

    (Contributions to nephrology ; 173)

    2011  

    Author's details vol. ed. Akira Saito
    Series title Contributions to nephrology ; 173
    Collection
    Keywords Hemodiafiltration / instrumentation ; Hemodiafiltration / methods ; Membranes, Artificial ; Kidney, Artificial
    Language English
    Size X, 200 S. : Ill., graph. Darst., 25 cm
    Publisher Karger
    Publishing place Basel u.a.
    Publishing country Germany ; Switzerland
    Document type Book
    Note Literaturangaben
    HBZ-ID HT016947992
    ISBN 978-3-8055-9812-5 ; 3-8055-9812-2 ; 9783805598132 ; 3805598130
    Database Catalogue ZB MED Medicine, Health

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  4. Article: Auto-Brewery Syndrome After COVID-19 Infection.

    Yates, Sarah R / Saito, Akira

    ACG case reports journal

    2024  Volume 11, Issue 2, Page(s) e01248

    Abstract: Auto-brewery syndrome (ABS) is a rare medical condition, wherein gut microbiota ferment carbohydrates to alcohol. Risk factors for ABS include diets high in carbohydrates and sugars, diabetes mellitus, prior gastrointestinal surgery, nonalcoholic fatty ... ...

    Abstract Auto-brewery syndrome (ABS) is a rare medical condition, wherein gut microbiota ferment carbohydrates to alcohol. Risk factors for ABS include diets high in carbohydrates and sugars, diabetes mellitus, prior gastrointestinal surgery, nonalcoholic fatty liver disease, and certain genetic mutations, among others. We provide a case of ABS that developed after known COVID-19 infection, which may be one of the contributing factors to its development.
    Language English
    Publishing date 2024-02-08
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2814825-3
    ISSN 2326-3253
    ISSN 2326-3253
    DOI 10.14309/crj.0000000000001248
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Utility of Intracoronary Acetylcholine Provocation Testing in Inducing Atrial Fibrillation with Preexcitation Followed by Ventricular Fibrillation in a Patient with Wolff-Parkinson-White Syndrome: A Case Report.

    Saito, Akira / Mochida, Chisaki / Mizuno, Atsushi / Masuda, Keita

    Internal medicine (Tokyo, Japan)

    2024  

    Abstract: A 20-year-old man was resuscitated after ventricular fibrillation (VF). Electrocardiography revealed Wolff-Parkinson-White (WPW) syndrome. Intracoronary acetylcholine provocation testing was performed to induce VF secondary to the coronary vasospasm. The ...

    Abstract A 20-year-old man was resuscitated after ventricular fibrillation (VF). Electrocardiography revealed Wolff-Parkinson-White (WPW) syndrome. Intracoronary acetylcholine provocation testing was performed to induce VF secondary to the coronary vasospasm. The administration of acetylcholine to the coronary artery induced atrial fibrillation (AF) with pre-excitation, followed by VF without coronary vasospasm. Electrophysiological studies revealed an accessory pathway managed by catheter ablation. Subsequent intracoronary acetylcholine provocation testing (ACH test) induced the occurrence of AF without preexcitation. To our knowledge, this case report is the first to demonstrate the utility of the ACH test in confirming WPW syndrome as a cause of VF.
    Language English
    Publishing date 2024-02-19
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 32371-8
    ISSN 1349-7235 ; 0021-5120 ; 0918-2918
    ISSN (online) 1349-7235
    ISSN 0021-5120 ; 0918-2918
    DOI 10.2169/internalmedicine.3000-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Experimental development of a gated UV-induced spectroscopic lidar for the daytime study of plant ecology and photosynthesis: multi-modal measurement of fluorescence of trees growing in a field and Mie-Raman-fluorescence of the surrounding atmosphere.

    Saito, Yasunori / Doi, Akira

    Applied optics

    2023  Volume 62, Issue 16, Page(s) 4262–4267

    Abstract: A gated UV-induced spectroscopic lidar operational during daylight was developed to better understand the plant growth status in real time and the influence from the surrounding atmosphere chemical environment. Initial indoor experiments and short-range ( ...

    Abstract A gated UV-induced spectroscopic lidar operational during daylight was developed to better understand the plant growth status in real time and the influence from the surrounding atmosphere chemical environment. Initial indoor experiments and short-range (100 m) field measurements were very positive. The lidar worked as a vegetation fluorescence lidar, as well as an atmospheric Mie-Raman-fluorescence lidar. A UV (355 nm) laser was effective to induce fluorescence and Raman scattering, and a synchronous detection technique made it possible to detect weak signals, even in daytime. Tree spectra containing chlorophyll fluorescence of tree leaves offered information about the growth status of trees. Atmospheric spectra containing aerosol Mie scattering,
    MeSH term(s) Trees ; Spectrum Analysis ; Ecology ; Atmosphere ; Plant Development
    Language English
    Publishing date 2023-09-14
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/AO.486105
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Damage control of epithelial barrier function in dynamic environments.

    Higashi, Tomohito / Saito, Akira C / Chiba, Hideki

    European journal of cell biology

    2024  Volume 103, Issue 2, Page(s) 151410

    Abstract: Epithelial tissues cover the surfaces and lumens of the internal organs of multicellular animals and crucially contribute to internal environment homeostasis by delineating distinct compartments within the body. This vital role is known as epithelial ... ...

    Abstract Epithelial tissues cover the surfaces and lumens of the internal organs of multicellular animals and crucially contribute to internal environment homeostasis by delineating distinct compartments within the body. This vital role is known as epithelial barrier function. Epithelial cells are arranged like cobblestones and intricately bind together to form an epithelial sheet that upholds this barrier function. Central to the restriction of solute and fluid diffusion through intercellular spaces are occluding junctions, tight junctions in vertebrates and septate junctions in invertebrates. As part of epithelial tissues, cells undergo constant renewal, with older cells being replaced by new ones. Simultaneously, the epithelial tissue undergoes relative rearrangement, elongating, and shifting directionally as a whole. The movement or shape changes within the epithelial sheet necessitate significant deformation and reconnection of occluding junctions. Recent advancements have shed light on the intricate mechanisms through which epithelial cells sustain their barrier function in dynamic environments. This review aims to introduce these noteworthy findings and discuss some of the questions that remain unanswered.
    Language English
    Publishing date 2024-04-03
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 391967-5
    ISSN 1618-1298 ; 0070-2463 ; 0171-9335
    ISSN (online) 1618-1298
    ISSN 0070-2463 ; 0171-9335
    DOI 10.1016/j.ejcb.2024.151410
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Effects of patterned electrical sensory nerve stimulation and static stretching on joint range of motion and passive torque.

    Saito, Akira / Mizuno, Takamasa

    Frontiers in neuroscience

    2023  Volume 17, Page(s) 1205602

    Abstract: Static stretching and proprioceptive neuromuscular facilitation stretching techniques can modulate specific neural mechanisms to improve the range of motion. However, the effects of modulation of these neural pathways on changes in the range of motion ... ...

    Abstract Static stretching and proprioceptive neuromuscular facilitation stretching techniques can modulate specific neural mechanisms to improve the range of motion. However, the effects of modulation of these neural pathways on changes in the range of motion with static stretching remain unclear. Patterned electrical stimulation of the sensory nerve induces plastic changes in reciprocal Ia inhibition. The present study examined the effects of patterned electrical stimulation and static stretching on a range of motion and passive torque in plantarflexion muscles. The subjects were 14 young men (age 20.8 ± 1.3 years). The effects of patterned electrical stimulation (10 pulses at 100 Hz every 1.5 s) or uniform electrical stimulation (one pulse every 150 ms) to the common peroneal nerve for 20 min on reciprocal Ia inhibition of the Hoffman reflex (H-reflex) were examined. Reciprocal Ia inhibition was evaluated as short-latency suppression of the soleus H-reflex by conditioning stimulation of the common peroneal nerve. Then, the effects of transcutaneous electrical nerve stimulation (patterned electrical stimulation or uniform electrical stimulation) or prolonged resting (without electrical stimulation) and static 3-min stretching on the maximal dorsiflexion angle and passive torque were investigated. The passive ankle dorsiflexion test was performed on an isokinetic dynamometer. Stretch tolerance and stiffness of the muscle-tendon unit were evaluated by the peak and slope of passive torques, respectively. Patterned electrical stimulation significantly increased reciprocal Ia inhibition of soleus H-reflex amplitude (9.7 ± 6.1%), but uniform electrical stimulation decreased it significantly (19.5 ± 8.8%). The maximal dorsiflexion angle was significantly changed by patterned electrical stimulation (4.0 ± 1.4°), uniform electrical stimulation (3.8 ± 2.3°), and stretching without electrical stimulation (2.1 ± 3.3°). The increase in stretch tolerance was significantly greater after patterned electrical stimulation and uniform electrical stimulation than after stretching without electrical stimulation. Stiffness of the muscle-tendon unit was significantly decreased by patterned electrical stimulation, uniform electrical stimulation, and stretching without electrical stimulation. Transcutaneous electrical nerve stimulation and static stretching improve stretch tolerance regardless of the degree of reciprocal Ia inhibition.
    Language English
    Publishing date 2023-08-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2411902-7
    ISSN 1662-453X ; 1662-4548
    ISSN (online) 1662-453X
    ISSN 1662-4548
    DOI 10.3389/fnins.2023.1205602
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Peptide coupling using recyclable bicyclic benziodazolone.

    Uehara, Daigo / Adachi, Sota / Tsubouchi, Akira / Okada, Yohei / Zhdankin, Viktor V / Yoshimura, Akira / Saito, Akio

    Chemical communications (Cambridge, England)

    2024  Volume 60, Issue 8, Page(s) 956–959

    Abstract: We report a greener peptide coupling using bicyclic benziodazolone and triarylphosphine as coupling reagents. Bicyclic benziodazolone also works as a base and can be recovered as the corresponding iodine(I) compound after use, which can be converted to ... ...

    Abstract We report a greener peptide coupling using bicyclic benziodazolone and triarylphosphine as coupling reagents. Bicyclic benziodazolone also works as a base and can be recovered as the corresponding iodine(I) compound after use, which can be converted to the original iodine(III) reagent by electrolytic oxidation.
    Language English
    Publishing date 2024-01-23
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/d3cc04431a
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Book ; Online: Les outils de la pensée : Étude historique et comparative des « textes »

    Saito, Akira / Nakamura, Yusuke

    2010  

    Abstract: Les « textes » qui nous entourent et qui circulent dans notre société moderne - livres, journaux, tableaux, diagrammes, cartes, et cetera - sont des outils importants qui nous aident à réaliser des opérations mentales et cognitives de traitement de ... ...

    Abstract Les « textes » qui nous entourent et qui circulent dans notre société moderne - livres, journaux, tableaux, diagrammes, cartes, et cetera - sont des outils importants qui nous aident à réaliser des opérations mentales et cognitives de traitement de linformation : communiquer, représenter, mémoriser, comparer, classifier, et cetera Ces outils de la pensée, dont lutilité nous paraît évidente, ont toutefois noué et nouent encore des relations complexes et variées avec leurs usagers. Partant détudes de cas, nous tenterons dexplorer certains des trajets tortueux et labyrinthiques que lhomme et ces outils ont parcourus ensemble au cours de leur histoire
    Keywords Language and Literature ; Science (General)
    Size 1 electronic resource ( pages)
    Publisher Éditions de la Maison des sciences de l'homme
    Document type Book ; Online
    Note French ; Open Access
    HBZ-ID HT020321163
    ISBN 9782735118540 ; 2735118541
    DOI 10.4000/books.editionsmsh.13228
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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