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  1. Article ; Online: Walking aids and complicated orthopedic diseases are risk factors for falls in hemodialysis patients: an observational study.

    Ishii, Takeo / Matsumoto, Wataru / Hoshino, Yui / Kagawa, Yasuhiro / Iwasaki, Emi / Takada, Hiromi / Honma, Takashi / Oyama, Kunio

    BMC geriatrics

    2023  Volume 23, Issue 1, Page(s) 319

    Abstract: Background: Aging and an increased fall risk have been demonstrated in hemodialysis patients at home and in a facility. However, studies investigating the cause of falls to prevent fractures in dialysis rooms are scarce. This study aimed to explore the ... ...

    Abstract Background: Aging and an increased fall risk have been demonstrated in hemodialysis patients at home and in a facility. However, studies investigating the cause of falls to prevent fractures in dialysis rooms are scarce. This study aimed to explore the related factors for accidental falls statistically in dialysis facilities for future fall prevention.
    Methods: This study included 629 hemodialysis patients with end-stage renal disease. The patients were divided into two groups: the fall and non-fall groups. The main outcome was the presence or absence of falls in the dialysis room. Univariate and multivariate logistic analyses were performed; multivariate analysis was conducted using covariates significantly correlated in the univariate analysis.
    Results: A total of 133 patients experienced falling accidents during the study period. The multivariate analysis indicated that the use of walking aid (p < 0.001), orthopedic diseases (p < 0.05), cerebrovascular disease, and age were significantly correlated with falls.
    Conclusions: In the dialysis clinic, patients who use walking aids and have complicated orthopedic or cerebrovascular conditions are at a high risk of falling in the dialysis room. Therefore, establishing a safe environment may help prevent falls, not only for these patients but also among other patients with similar conditions.
    MeSH term(s) Humans ; Risk Factors ; Renal Dialysis/adverse effects ; Kidney Failure, Chronic/epidemiology ; Kidney Failure, Chronic/therapy ; Walking ; Ambulatory Care Facilities
    Language English
    Publishing date 2023-05-22
    Publishing country England
    Document type Observational Study ; Journal Article
    ZDB-ID 2059865-8
    ISSN 1471-2318 ; 1471-2318
    ISSN (online) 1471-2318
    ISSN 1471-2318
    DOI 10.1186/s12877-023-04015-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Book: Shimin-no-seiji-sanka-to-shakai-kōken-no-kokusai-hikaku

    Maeda, Tadahiko / Matsumoto, Wataru

    Nihon-chōsa-hōkokusho

    (Kenkyū-ripōto / Tōkei-Sūri-Kenkyūsho ; 97)

    2008  

    Title variant Cross-national comparison of political participation and social contribution - Japan survey report
    Author's details Wataru Matsumoto; Tadahiko Maeda
    Series title Kenkyū-ripōto / Tōkei-Sūri-Kenkyūsho ; 97
    Keywords Political participation ; Public opinion
    Language Japanese ; English
    Size 144 S.
    Publisher Institute of Statistical Mathematics
    Publishing place Tōkyō
    Document type Book
    Note Text japan
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  3. Book: Shimin-no-seiji-sanka-to-shakai-kōken-no-kokusai-hikaku

    Matsumoto, Wataru / Yoshino, Ryozo

    kankoku-chōsa-hōkokushō

    (Kenkyū-ripōto / Tōkei-Sūri-Kenkyūsho ; 101)

    2010  

    Title variant Cross-national comparison of political participation and social contribution : South Korea survey report
    Author's details Wataru Matsumoto; Ryozo Yoshino
    Series title Kenkyū-ripōto / Tōkei-Sūri-Kenkyūsho ; 101
    Keywords Political participation ; Public opinion
    Language Japanese ; Korean ; English
    Size 218 S., Tab.
    Publisher Institute of Statistical Mathematics
    Publishing place Tōkyō
    Document type Book
    Note Text japan. u. korean. - Zsfassung in engl. Sprache
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  4. Book: Cross-national comparison of political participation and social contribution

    Matsumoto, Wataru / Nikaido, Kousuke

    (Kenkyū-ripōto / Tōkei-Sūri-Kenkyūsho ; 100)

    2010  

    Title variant Shimin-no-seiji-sanka-to-shakai-kōken-no-kokusai-hikaku : USA-chōsa-hōkokusho
    Author's details Wataru Matsumoto; Kousuke Nikaido
    Series title Kenkyū-ripōto / Tōkei-Sūri-Kenkyūsho ; 100
    Language English ; Japanese
    Size 129 S., Tab.
    Publisher Institute of Statistical Mathematics
    Publishing place Tōkyō
    Document type Book
    Note Text engl. - Zsfassung in japan. Sprache
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  5. Article: Effects of price regulations and dark pools on financial market stability

    Mizuta, Takanobu / Izumi, Kiyoshi / Kosugi, Shintaro / Kusumoto, Takuya / Matsumoto, Wataru / Yagi, Isao / Yoshimura, Shinobu

    Intelligent systems in accounting finance and management : international journal Vol. 23, No. 1/2 , p. 97-120

    an investigation by multiagent simulations

    2016  Volume 23, Issue 1, Page(s) 97–120

    Author's details Takanobu Mizuta, Shintaro Kosugi, Takuya Kusumoto, Wataru Matsumoto, Kiyoshi Izumi, Isao Yagi and Shinobu Yoshimura
    Language English
    Dates of publication 2016-9999
    Publisher Wiley & Sons
    Publishing place Chichester
    Document type Article
    ZDB-ID 2166336-1 ; 2002372-8
    ISSN 1099-1174 ; 1055-615X
    ISSN (online) 1099-1174
    ISSN 1055-615X
    Database ECONomics Information System

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  6. Book: Cross-national comparison of political participation and social contribution: Japan survey report; english edition

    Matsumoto, Wataru / Maeda, Tadahiko

    (Kenkyū-ripōto / Tōkei-Sūri-Kenkyūsho ; 98)

    2008  

    Author's details Wataru Matsumoto; Tadahiko Maeda
    Series title Kenkyū-ripōto / Tōkei-Sūri-Kenkyūsho ; 98
    Language English ; Japanese
    Size 165 S., Tab.
    Publisher Institute of Statistical Mathematics
    Publishing place Tōkyō
    Document type Book
    Note Text engl., teilw. japan.
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  7. Article: Effects of dark pools on financial markets' efficiency and price discovery function

    Mizuta, Takanobu / Izumi, Kiyoshi / Kosugi, Shintaro / Kusumoto, Takuya / Matsumoto, Wataru

    Evolutionary and institutional economics review Vol. 12, No. 2 , p. 375-394

    an investigation by multi-agent simulations

    2015  Volume 12, Issue 2, Page(s) 375–394

    Author's details Takanobu Mizuta, Shintaro Kosugi, Takuya Kusumoto, Wataru Matsumoto, Kiyoshi Izumi
    Keywords Dark pool ; Market efficiency ; Price discovery function ; Artificial market model ; Multi-agent simulation
    Language English
    Publisher Springer$h2004-
    Publishing place Berlin ; Heidelberg
    Document type Article
    ZDB-ID 2175975-3 ; 2217615-9
    ISSN 2188-2096 ; 1349-4961
    ISSN (online) 2188-2096
    ISSN 1349-4961
    Database ECONomics Information System

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  8. Article ; Online: Circuit topology for synchronizing neurons in spontaneously active networks.

    Takahashi, Naoya / Sasaki, Takuya / Matsumoto, Wataru / Matsuki, Norio / Ikegaya, Yuji

    Proceedings of the National Academy of Sciences of the United States of America

    2010  Volume 107, Issue 22, Page(s) 10244–10249

    Abstract: Spike synchronization underlies information processing and storage in the brain. But how can neurons synchronize in a noisy network? By exploiting a high-speed (500-2,000 fps) multineuron imaging technique and a large-scale synapse mapping method, we ... ...

    Abstract Spike synchronization underlies information processing and storage in the brain. But how can neurons synchronize in a noisy network? By exploiting a high-speed (500-2,000 fps) multineuron imaging technique and a large-scale synapse mapping method, we directly compared spontaneous activity patterns and anatomical connectivity in hippocampal CA3 networks ex vivo. As compared to unconnected pairs, synaptically coupled neurons shared more common presynaptic neurons, received more correlated excitatory synaptic inputs, and emitted synchronized spikes with approximately 10(7) times higher probability. Importantly, common presynaptic parents per se synchronized more than unshared upstream neurons. Consistent with this, dynamic-clamp stimulation revealed that common inputs alone could not account for the realistic degree of synchronization unless presynaptic spikes synchronized among common parents. On a macroscopic scale, network activity was coordinated by a power-law scaling of synchronization, which engaged varying sets of densely interwired (thus highly synchronized) neuron groups. Thus, locally coherent activity converges on specific cell assemblies, thereby yielding complex ensemble dynamics. These segmentally synchronized pulse packets may serve as information modules that flow in associatively parallel network channels.
    MeSH term(s) Action Potentials ; Animals ; Brain Mapping/methods ; CA1 Region, Hippocampal/cytology ; CA1 Region, Hippocampal/physiology ; CA3 Region, Hippocampal/cytology ; CA3 Region, Hippocampal/physiology ; Calcium Signaling ; Electrophysiological Phenomena ; Excitatory Postsynaptic Potentials ; In Vitro Techniques ; Inhibitory Postsynaptic Potentials ; Models, Neurological ; Nerve Net/cytology ; Nerve Net/physiology ; Neurons/physiology ; Patch-Clamp Techniques ; Rats ; Rats, Wistar
    Language English
    Publishing date 2010-05-17
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 209104-5
    ISSN 1091-6490 ; 0027-8424
    ISSN (online) 1091-6490
    ISSN 0027-8424
    DOI 10.1073/pnas.0914594107
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1148: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  9. Article: Circuit topology for synchronizing neurons in spontaneously active networks

    Takahashi, Naoya / Sasaki, Takuya / Matsumoto, Wataru / Matsuki, Norio / Ikegaya, Yuji

    Proceedings of the National Academy of Sciences of the United States of America. 2010 June 1, v. 107, no. 22

    2010  

    Abstract: Spike synchronization underlies information processing and storage in the brain. But how can neurons synchronize in a noisy network? By exploiting a high-speed (500-2,000 fps) multineuron imaging technique and a large-scale synapse mapping method, we ... ...

    Abstract Spike synchronization underlies information processing and storage in the brain. But how can neurons synchronize in a noisy network? By exploiting a high-speed (500-2,000 fps) multineuron imaging technique and a large-scale synapse mapping method, we directly compared spontaneous activity patterns and anatomical connectivity in hippocampal CA3 networks ex vivo. As compared to unconnected pairs, synaptically coupled neurons shared more common presynaptic neurons, received more correlated excitatory synaptic inputs, and emitted synchronized spikes with approximately 10⁷ times higher probability. Importantly, common presynaptic parents per se synchronized more than unshared upstream neurons. Consistent with this, dynamic-clamp stimulation revealed that common inputs alone could not account for the realistic degree of synchronization unless presynaptic spikes synchronized among common parents. On a macroscopic scale, network activity was coordinated by a power-law scaling of synchronization, which engaged varying sets of densely interwired (thus highly synchronized) neuron groups. Thus, locally coherent activity converges on specific cell assemblies, thereby yielding complex ensemble dynamics. These segmentally synchronized pulse packets may serve as information modules that flow in associatively parallel network channels.
    Keywords brain ; image analysis ; neurons ; parents ; probability ; synapse
    Language English
    Dates of publication 2010-0601
    Size p. 10244-10249.
    Publishing place National Academy of Sciences
    Document type Article
    ZDB-ID 209104-5
    ISSN 1091-6490 ; 0027-8424
    ISSN (online) 1091-6490
    ISSN 0027-8424
    DOI 10.1073/pnas.0914594107
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 4' 63/44: Show issues
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  10. Article ; Online: Statistical significance of precisely repeated intracellular synaptic patterns.

    Ikegaya, Yuji / Matsumoto, Wataru / Chiou, Huei-Yu / Yuste, Rafael / Aaron, Gloster

    PloS one

    2008  Volume 3, Issue 12, Page(s) e3983

    Abstract: Can neuronal networks produce patterns of activity with millisecond accuracy? It may seem unlikely, considering the probabilistic nature of synaptic transmission. However, some theories of brain function predict that such precision is feasible and can ... ...

    Abstract Can neuronal networks produce patterns of activity with millisecond accuracy? It may seem unlikely, considering the probabilistic nature of synaptic transmission. However, some theories of brain function predict that such precision is feasible and can emerge from the non-linearity of the action potential generation in circuits of connected neurons. Several studies have presented evidence for and against this hypothesis. Our earlier work supported the precision hypothesis, based on results demonstrating that precise patterns of synaptic inputs could be found in intracellular recordings from neurons in brain slices and in vivo. To test this hypothesis, we devised a method for finding precise repeats of activity and compared repeats found in the data to those found in surrogate datasets made by shuffling the original data. Because more repeats were found in the original data than in the surrogate data sets, we argued that repeats were not due to chance occurrence. Mokeichev et al. (2007) challenged these conclusions, arguing that the generation of surrogate data was insufficiently rigorous. We have now reanalyzed our previous data with the methods introduced from Mokeichev et al. (2007). Our reanalysis reveals that repeats are statistically significant, thus supporting our earlier conclusions, while also supporting many conclusions that Mokeichev et al. (2007) drew from their recent in vivo recordings. Moreover, we also show that the conditions under which the membrane potential is recorded contributes significantly to the ability to detect repeats and may explain conflicting results. In conclusion, our reevaluation resolves the methodological contradictions between Ikegaya et al. (2004) and Mokeichev et al. (2007), but demonstrates the validity of our previous conclusion that spontaneous network activity is non-randomly organized.
    MeSH term(s) Action Potentials/physiology ; Animals ; Cats ; Electrophysiology/methods ; Intracellular Space/physiology ; Mice ; Mice, Inbred C57BL ; Mice, Inbred ICR ; Models, Biological ; Models, Statistical ; Neurons/physiology ; Patch-Clamp Techniques/methods ; Periodicity ; Synaptic Transmission/physiology
    Language English
    Publishing date 2008-12-19
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0003983
    Database MEDical Literature Analysis and Retrieval System OnLINE

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