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  1. Article: [Current surgical treatment of extra-ampullary duodenal tumor].

    Okada, Ken-Ichi / Yamaue, Hiroki

    Nihon Shokakibyo Gakkai zasshi = The Japanese journal of gastro-enterology

    2022  Volume 119, Issue 2, Page(s) 126–131

    MeSH term(s) Ampulla of Vater/diagnostic imaging ; Ampulla of Vater/pathology ; Ampulla of Vater/surgery ; Common Bile Duct Neoplasms/pathology ; Common Bile Duct Neoplasms/surgery ; Duodenal Neoplasms/diagnostic imaging ; Duodenal Neoplasms/pathology ; Duodenal Neoplasms/surgery ; Humans ; Pancreatic Neoplasms/pathology
    Language Japanese
    Publishing date 2022-02-13
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 708695-7
    ISSN 1349-7693 ; 0446-6586
    ISSN (online) 1349-7693
    ISSN 0446-6586
    DOI 10.11405/nisshoshi.119.126
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Ui V Zs.34: Show issues Location:
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    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)
    Zs.MO 477: Show issues

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  2. Article ; Online: Concise Total Synthesis of (+)-Pleiocarpamine and Convergent Total Syntheses of (+)-Voacalgine A and (+)-Bipleiophylline via an Aerobic Oxidative Coupling.

    Okada, Kosuke / Ojima, Ken-Ichi / Ueda, Hirofumi / Tokuyama, Hidetoshi

    Journal of the American Chemical Society

    2023  Volume 145, Issue 30, Page(s) 16337–16343

    Abstract: The stereocontrolled total synthesis of (+)-pleiocarpamine and the total syntheses of (+)-voacalgine A and (+)-bipleiophylline have been achieved. The scalable and concise 10-step synthesis of (+)-pleiocarpamine features construction of stereochemistry ... ...

    Abstract The stereocontrolled total synthesis of (+)-pleiocarpamine and the total syntheses of (+)-voacalgine A and (+)-bipleiophylline have been achieved. The scalable and concise 10-step synthesis of (+)-pleiocarpamine features construction of stereochemistry at the C16 position by radical cyclization and that of the highly strained cage-like structure via Pd-catalyzed intramolecular aromatic C-H functionalization. By modifying the biomimetic aerobic oxidative coupling of tryptophane derivatives catalyzed by FePc(CO
    Language English
    Publishing date 2023-07-24
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.3c05811
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    In stock of ZB MED Bonn / Germany

    Z 4' 55/32: Show issues
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  3. Article ; Online: Neural signals regulating motor synchronization in the primate deep cerebellar nuclei

    Ken-ichi Okada / Ryuji Takeya / Masaki Tanaka

    Nature Communications, Vol 13, Iss 1, Pp 1-

    2022  Volume 12

    Abstract: It remains unclear how the brain represents information regarding synchronized movements. Here, the authors investigated the response properties of cerebellar cells in macaques performing a synchronized saccade task and found three groups of cerebellar ... ...

    Abstract It remains unclear how the brain represents information regarding synchronized movements. Here, the authors investigated the response properties of cerebellar cells in macaques performing a synchronized saccade task and found three groups of cerebellar neurons with distinct peri-saccade response profiles.
    Keywords Science ; Q
    Language English
    Publishing date 2022-05-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article: Very late perforation of a passive fixation lead 8 years after pacemaker implantation.

    Iwai, Hidehiro / Takami, Mitsuru / Fukuzawa, Koji / Nakai, Hidekazu / Okada, Kenji / Hirata, Ken-Ichi

    HeartRhythm case reports

    2023  Volume 9, Issue 6, Page(s) 351–354

    Language English
    Publishing date 2023-03-03
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2834871-0
    ISSN 2214-0271
    ISSN 2214-0271
    DOI 10.1016/j.hrcr.2023.02.014
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  5. Article ; Online: Neural signals regulating motor synchronization in the primate deep cerebellar nuclei.

    Okada, Ken-Ichi / Takeya, Ryuji / Tanaka, Masaki

    Nature communications

    2022  Volume 13, Issue 1, Page(s) 2504

    Abstract: Movements synchronized with external rhythms are ubiquitous in our daily lives. Despite the involvement of the cerebellum, the underlying mechanism remains unclear. In monkeys performing synchronized saccades to periodically alternating visual stimuli, ... ...

    Abstract Movements synchronized with external rhythms are ubiquitous in our daily lives. Despite the involvement of the cerebellum, the underlying mechanism remains unclear. In monkeys performing synchronized saccades to periodically alternating visual stimuli, we found that neuronal activity in the cerebellar dentate nucleus correlated with the timing of the next saccade and the current temporal error. One-third of the neurons were active regardless of saccade direction and showed greater activity for synchronized than for reactive saccades. During the transition from reactive to predictive saccades in each trial, the activity of these neurons coincided with target onset, representing an internal model of rhythmic structure rather than a specific motor command. The behavioural changes induced by electrical stimulation were explained by activating different groups of neurons at various strengths, suggesting that the lateral cerebellum contains multiple functional modules for the acquisition of internal rhythms, predictive motor control, and error detection during synchronized movements.
    MeSH term(s) Animals ; Cerebellar Nuclei/physiology ; Cerebellum/physiology ; Neurons/physiology ; Photic Stimulation ; Primates ; Saccades
    Language English
    Publishing date 2022-05-06
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-022-30246-2
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  6. Article ; Online: A rare case of concomitant aortic regurgitation and coronary ostial stenosis due to cardiovascular syphilis.

    Fujimoto, Daichi / Toba, Takayoshi / Okada, Kenji / Hirata, Ken-Ichi

    European heart journal. Case reports

    2021  Volume 5, Issue 3, Page(s) ytab064

    Language English
    Publishing date 2021-03-02
    Publishing country England
    Document type Case Reports
    ISSN 2514-2119
    ISSN (online) 2514-2119
    DOI 10.1093/ehjcr/ytab064
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  7. Article ; Online: Diffuse Esophageal Wall Thickening Due to Lymphoma.

    Iwamuro, Masaya / Matsuoka, Ken-Ichi / Tanaka, Takehiro / Okada, Hiroyuki

    Internal medicine (Tokyo, Japan)

    2021  Volume 60, Issue 19, Page(s) 3179–3180

    MeSH term(s) Esophagus/diagnostic imaging ; Humans ; Lymphoma/diagnostic imaging
    Language English
    Publishing date 2021-04-05
    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.7307-21
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 240: Show issues Location:
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    Jg. 1995 - 2021: Lesesall (1.OG)
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  8. Article ; Online: Stapler Method for Transection of the Pancreatic Parenchyma During Pancreatoduodenectomy: Prospective Study.

    Kitahata, Yuji / Okada, Ken-Ichi / Miyazawa, Motoki / Ueno, Masaki / Hayami, Shinya / Miyamoto, Atsushi / Kawai, Manabu

    Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract

    2023  Volume 27, Issue 10, Page(s) 2215–2217

    MeSH term(s) Humans ; Pancreaticoduodenectomy/methods ; Prospective Studies ; Pancreas/surgery ; Pancreatectomy/methods ; Pancreatic Fistula/surgery ; Postoperative Complications/surgery
    Language English
    Publishing date 2023-08-24
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2012365-6
    ISSN 1873-4626 ; 1934-3213 ; 1091-255X
    ISSN (online) 1873-4626 ; 1934-3213
    ISSN 1091-255X
    DOI 10.1007/s11605-023-05813-7
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 5207: Show issues Location:
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    Zs.MO 354: Show issues

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  9. Article ; Online: A rare manifestation of primary cardiac intimal sarcoma: mimicking non-bacterial thrombotic endocarditis with severe mitral regurgitation.

    Todo, Saki / Toba, Takayoshi / Okada, Kenji / Hirata, Ken-Ichi

    European heart journal. Cardiovascular Imaging

    2021  Volume 22, Issue 4, Page(s) e8

    MeSH term(s) Endocarditis/diagnosis ; Endocarditis/diagnostic imaging ; Endocarditis, Bacterial ; Endocarditis, Non-Infective ; Humans ; Mitral Valve ; Mitral Valve Insufficiency/diagnostic imaging ; Mitral Valve Insufficiency/etiology ; Sarcoma/complications ; Sarcoma/diagnostic imaging
    Language English
    Publishing date 2021-02-12
    Publishing country England
    Document type Case Reports ; Journal Article
    ZDB-ID 2638345-7
    ISSN 2047-2412 ; 2047-2404
    ISSN (online) 2047-2412
    ISSN 2047-2404
    DOI 10.1093/ehjci/jeab026
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 5614: Show issues Location:
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    Jg. 1995 - 2021: Lesesall (2.OG)
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  10. Article ; Online: N

    Nagata, Tatsuki / Okada, Kanji / Kondo, Ryota / Toyao, Takashi / Shimizu, Ken-Ichi / Suzuki, Takeyuki / Obora, Yasushi

    RSC advances

    2022  Volume 12, Issue 26, Page(s) 16599–16603

    Abstract: ... ...

    Abstract N
    Language English
    Publishing date 2022-06-06
    Publishing country England
    Document type Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d2ra02381d
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