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  1. Article

    Open Access

    Silicone-based highly stretchable multifunctional fiber pumps

    Recent advancements on electrohydrodynamic (EHD) soft pumps demonstrate their applicability to various fluid-driven systems such as soft robots, wearable devices, and stretchable electronics. In particular, fi...

    Ryo Kanno, Keita Shimizu, Kazuya Murakami, Yuya Shibahara in Scientific Reports (2024)

  2. Article

    Open Access

    Celestial two-point functions and rectified dictionary

    A naive celestial dictionary causes massless two-point functions to take the delta-function forms in the celestial conformal field theory (CCFT). We rectify the dictionary, involving the shadow transformation ...

    Hideo Furugori, Naoki Ogawa, Sotaro Sugishita in Journal of High Energy Physics (2024)

  3. Article

    Open Access

    Emergent zero-field anomalous Hall effect in a reconstructed rutile antiferromagnetic metal

    The anomalous Hall effect (AHE) that emerges in antiferromagnetic metals shows intriguing physics and offers numerous potential applications. Magnets with a rutile crystal structure have recently received atte...

    Meng Wang, Katsuhiro Tanaka, Shiro Sakai, Ziqian Wang, Ke Deng in Nature Communications (2023)

  4. Article

    Open Access

    Artificially controlled nanoscale chemical reduction in VO2 through electron beam illumination

    Chemical reduction in oxides plays a crucial role in engineering the material properties through structural transformation and electron filling. Controlling the reduction at nanoscale forms a promising pathway...

    Yang Zhang, Yupu Wang, Yongshun Wu, **nyu Shu, Fan Zhang in Nature Communications (2023)

  5. No Access

    Article

    Giant bulk piezophotovoltaic effect in 3R-MoS2

    Given its innate coupling with wavefunction geometry in solids and its potential to boost the solar energy conversion efficiency, the bulk photovoltaic effect (BPVE) has been of considerable interest in the pa...

    Yu Dong, Ming-Min Yang, Mao Yoshii, Satoshi Matsuoka in Nature Nanotechnology (2023)

  6. Article

    Open Access

    Peristaltic micropump using polyvinyl chloride gels with micropatterned surface

    This paper presents a pump using polyvinyl chloride (PVC) gel. PVC gels are compliant, have a simple structure, and exhibit large deformation at voltages in the range of 100–1000 V, which make them suitable fo...

    Tomoki Motohashi, Naoki Ogawa, Hideko Akai, Jun Shintake in Scientific Reports (2022)

  7. Article

    Open Access

    Probiotic-derived heptelidic acid exerts antitumor effects on extraintestinal melanoma through glyceraldehyde-3-phosphate dehydrogenase activity control

    Several microorganisms inhabit the mammalian gastrointestinal tract and are associated with the pathogenesis of various diseases, including cancer. Recent studies have indicated that several probiotics produce...

    Shotaro Isozaki, Hiroaki Konishi, Hiroki Tanaka, Chikage Yamamura in BMC Microbiology (2022)

  8. Article

    Open Access

    Writing of strain-controlled multiferroic ribbons into MnWO4

    Local and low-dimensional structures, such as interfaces, domain walls and structural defects, may exhibit physical properties different from the bulk. Therein, a wide variety of local phases were discovered i...

    Shingo Toyoda, Manfred Fiebig, Lea Forster, Taka-hisa Arima in Nature Communications (2021)

  9. Article

    Open Access

    Insect wing 3D printing

    Insects have acquired various types of wings over their course of evolution and have become the most successful terrestrial animals. Consequently, the essence of their excellent environmental adaptability and ...

    Kazuya Saito, Hiroto Nagai, Kai Suto, Naoki Ogawa, Young ah Seong in Scientific Reports (2021)

  10. Article

    Open Access

    Probiotic Aspergillus oryzae produces anti-tumor mediator and exerts anti-tumor effects in pancreatic cancer through the p38 MAPK signaling pathway

    Intake of probiotics or fermented food produced by some probiotic bacteria is believed to exert anti-tumor functions in various cancers, including pancreatic cancer, because several studies have demonstrated t...

    Hiroaki Konishi, Shotaro Isozaki, Shin Kashima, Kentaro Moriichi in Scientific Reports (2021)

  11. Article

    Open Access

    Current-induced switching of proximity-induced ferromagnetic surface states in a topological insulator

    Electrical manipulation of magnetization could be an essential function for energy-efficient spintronics technology. A magnetic topological insulator, possessing a magnetically gapped surface state with spin-p...

    Masataka Mogi, Kenji Yasuda, Reika Fujimura, Ryutaro Yoshimi in Nature Communications (2021)

  12. No Access

    Article

    Creation of magnetic skyrmions by surface acoustic waves

    Non-collinear and non-coplanar spin textures, such as chiral domain walls1 and helical or triangular spin structures2,3, bring about diverse functionalities. Among them, magnetic skyrmions, particle-like non-copl...

    Tomoyuki Yokouchi, Satoshi Sugimoto, Bivas Rana, Shinichiro Seki in Nature Nanotechnology (2020)

  13. Article

    Open Access

    Nonlocal accumulation, chemical potential, and Hall effect of skyrmions in Pt/Co/Ir heterostructure

    Magnetic skyrmion is a swirling topological spin texture behaving as an individual particle. It shows a gyro-motion similarly to that of a charged particle under a magnetic field, being led to the transverse s...

    Satoshi Sugimoto, Wataru Koshibae, Shinya Kasai, Naoki Ogawa in Scientific Reports (2020)

  14. Article

    Open Access

    Electric-field control of anomalous and topological Hall effects in oxide bilayer thin films

    One of the key goals in spintronics is to tame the spin-orbit coupling (SOC) that links spin and motion of electrons, giving rise to intriguing magneto-transport properties in itinerant magnets. Prominent exam...

    Yuki Ohuchi, Jobu Matsuno, Naoki Ogawa, Yusuke Kozuka in Nature Communications (2018)

  15. No Access

    Article

    Morphological dissection of behavior: thoracic musculature clarifies independent development of jum** mechanisms between sister groups, planthoppers and leafhoppers (Insecta: Hemiptera: Auchenorrhyncha)

    Morphological and behavioral characters are frequently examined for comparative studies. Unlike morphology, a single behavioral trait is difficult to subdivide as multiple characters, even when achieved by man...

    Naoki Ogawa, Kazunori Yoshizawa in Organisms Diversity & Evolution (2017)

  16. Article

    Open Access

    Terahertz spectroscopy on Faraday and Kerr rotations in a quantum anomalous Hall state

    Electrodynamic responses from three-dimensional topological insulators are characterized by the universal magnetoelectric term constituent of the Lagrangian formalism. The quantized magnetoelectric coupling, w...

    Ken N. Okada, Youtarou Takahashi, Masataka Mogi, Ryutaro Yoshimi in Nature Communications (2016)

  17. Article

    Open Access

    Nitrogen-containing bisphosphonates inhibit RANKL- and M-CSF-induced osteoclast formation through the inhibition of ERK1/2 and Akt activation

    Bisphosphonates are an important class of antiresorptive drugs used in the treatment of metabolic bone diseases. Recent studies have shown that nitrogen-containing bisphosphonates induced apoptosis in rabbit o...

    Masanobu Tsubaki, Makiko Komai, Tatsuki Itoh in Journal of Biomedical Science (2014)

  18. Article

    Open Access

    Activation of NF-κB by the RANKL/RANK system up-regulates snail and twist expressions and induces epithelial-to-mesenchymal transition in mammary tumor cell lines

    Increased motility and invasiveness of cancer cells are reminiscent of the epithelial-mesenchymal transition (EMT), which occurs during cancer progression and metastasis. Recent studies have indicated the expr...

    Masanobu Tsubaki, Makiko Komai in Journal of Experimental & Clinical Cancer … (2013)

  19. Article

    Open Access

    Tracking 3D Picometer-Scale Motions of Single Nanoparticles with High-Energy Electron Probes

    We observed the high-speed anisotropic motion of an individual gold nanoparticle in 3D at the picometer scale using a high-energy electron probe. Diffracted electron tracking (DET) using the electron back-scat...

    Naoki Ogawa, Kentaro Hoshisashi, Hiroshi Sekiguchi, Kouhei Ichiyanagi in Scientific Reports (2013)

  20. No Access

    Article

    Light Effective Mass in the Widely-Dispersed Valence Band of Single Crystalline Rubrene Observed by High-Resolution Angle-Resolved Ultraviolet Photoelectron Spectroscopy

    High-resolution angle resolved ultraviolet photoelectron spectroscopy measurements were conducted on rubrene single crystals successfully through relief of the sample charging assisted by a laser illumination....

    Yasuo Nakayama, Shin-ichi Machida, Steffen Duhm, Qian **n in MRS Online Proceedings Library (2009)

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