Kaoru Yoshida, R. A. McCrea, Alain Berthoz, Pierre Paul Vidal,
... Nucleus of Cajal in the CatSohei Chimoto, Yoshiki Iwamoto, and Kaoru Yoshida1 March 1999 | Journal of Neurophysiology, Vol. 81, ...
Tópico(s): Memory and Neural Mechanisms
1982 - American Physiological Society | Journal of Neurophysiology
... Nucleus of Cajal in the CatSohei Chimoto, Yoshiki Iwamoto, and Kaoru Yoshida1 March 1999 | Journal of Neurophysiology, Vol. 81, No. 3Neuronal Activity in the Vestibular Nuclei After Contralateral or Bilateral Labyrinthectomy in the Alert Guinea PigLaurence Ris, and Emile Godaux1 November 1998 | Journal of Neurophysiology, Vol. 80, No. 5Interdependence of Spatial Properties and Projection Patterns of Medial Vestibulospinal Tract Neurons in the CatS. I. Perlmutter, Y. Iwamoto, J. F. Baker, and B. W. Peterson1 January ...
Tópico(s): Vestibular and auditory disorders
1966 - American Physiological Society | Journal of Neurophysiology
W. M. King, W. Precht, N. Dieringer,
... Nucleus of Cajal in the CatSohei Chimoto, Yoshiki Iwamoto, and Kaoru Yoshida1 March 1999 | Journal of Neurophysiology, Vol. 81, ...
Tópico(s): Glaucoma and retinal disorders
1980 - American Physiological Society | Journal of Neurophysiology
... Nucleus of Cajal in the CatSohei Chimoto, Yoshiki Iwamoto, and Kaoru Yoshida1 March 1999 | Journal of Neurophysiology, Vol. 81, ...
Tópico(s): Glaucoma and retinal disorders
1979 - American Physiological Society | Journal of Neurophysiology
W. M. King, Albert F. Fuchs, M. Magnin,
... Nucleus of Cajal in the CatSohei Chimoto, Yoshiki Iwamoto, and Kaoru Yoshida1 March 1999 | Journal of Neurophysiology, Vol. 81, ...
Tópico(s): Hemispheric Asymmetry in Neuroscience
1981 - American Physiological Society | Journal of Neurophysiology
... Nucleus of Cajal in the CatSohei Chimoto, Yoshiki Iwamoto, and Kaoru Yoshida1 March 1999 | Journal of Neurophysiology, Vol. 81, ...
Tópico(s): Hearing, Cochlea, Tinnitus, Genetics
1965 - American Physiological Society | Journal of Neurophysiology
Sohei Chimoto, Yoshiki Iwamoto, Kaoru Yoshida,
In two alert cats, single-unit activity of neurons related to vertical eye movement was recorded in and around the interstitial nucleus of Cajal (INC), and their projections to the ipsilateral vestibular nucleus and response to stimulation of the contralateral vestibular nerve were examined. Of 62 neurons that discharged in relation to vertical eye movement, 41 increased their firing rate for downward positions and 21 for upward positions. About one third of downward-on neurons was antidromically ...
Tópico(s): Visual perception and processing mechanisms
1992 - Elsevier BV | Neuroscience Research
Yoshiki Iwamoto, Kaoru Yoshida,
The caudal part of the fastigial nucleus, or the fastigial oculomotor region (FOR), plays an important role in executing accurate saccades. Inactivation of a monkey FOR leads to dysmetric saccades. Currently available data suggest that the dysmetria could be described as a parametric, uniform change in saccadic gain or, alternatively, as a constant error in the specification of the saccadic goal. To discriminate between these two possibilities, we examined the effect of FOR inactivation in the monkey. ...
Tópico(s): Visual perception and processing mechanisms
2002 - Elsevier BV | Neuroscience Letters
Naoko Inaba, Yoshiki Iwamoto, Kaoru Yoshida,
The accuracy of saccades is ensured by an adaptive mechanism that probably involves the cerebellum. We examined the discharge of saccade-related neurons in the fastigial oculomotor region (FOR) during adaptation. Using a conventional intrasaccadic step paradigm, we changed the gain of saccades elicited by a 10° horizontal target step to the side of unit recording. As a measure of neural activity, we took the number of spikes occurring in a 30 or 40 ms time window starting at 30 ms before saccade ...
Tópico(s): Neuroscience and Neuropharmacology Research
2003 - Elsevier BV | Neuroscience Research
Yoshitaka Nakamura, Masaki Terahara, T. Iwamoto, Kaoru Yamada, Masatake Asano, Shigeru Kakuta, Yoichiro Iwakura, Mamoru Totsuka,
We determined whether a potential probiotic bacterium, Bifidobacterium bifidum OLB6378 (BB6378), exerts beneficial effects on the mucosal immune system in a mouse intestinal explant model. The addition of heat-inactivated BB6378 to intestinal explants prepared from embryonic day 18 BALB/c mice increased the expression of polymeric immunoglobulin receptor (pIgR) mRNA by two- to fivefold. These effects were observed on ileal and colonic explants but not on jejunal explants, suggesting that the BB6378- ...
Tópico(s): Clostridium difficile and Clostridium perfringens research
2011 - Wiley | Scandinavian Journal of Immunology
Takeshi Yasui, Hisanari Takahashi, Kohji Kawamoto, Yutaka Iwamoto, Kaoru Arai, Tsutomu Araki, Hajime Inaba, Kaoru Minoshima,
We constructed a widely and continuously tunable terahertz frequency synthesizer traceable to a hydrogen maser linked to coordinated universal time. Photomixing of two optical frequency synthesizers, linked to the hydrogen maser via dual optical frequency combs, gave this THz synthesizer frequency uncertainty of 10⁻¹². To demonstrate the potential of wide and continuous tunability in the THz synthesizer, we tuned its output frequency up to 50 GHz discretely and 1.26 GHz continuously in the F-band ...
Tópico(s): Terahertz technology and applications
2011 - Optica Publishing Group | Optics Express
Yoshiko Kojima, Yoshiki Iwamoto, Kaoru Yoshida,
We have shown previously that adaptation of horizontal saccades exerts facilitating effects on subsequent adaptation of saccades in the same direction. Now we investigated the effect on saccades in different directions. A series of three alternating gain changes was induced by intrasaccadic step (ISS) of the target in two monkeys. The gain of saccades to horizontal or vertical target steps was decreased by backward ISS (conditioning). Then, we used forward ISS to increase their gain back to ∼1.0. Finally, ...
Tópico(s): Hearing, Cochlea, Tinnitus, Genetics
2005 - Elsevier BV | Neuroscience Research
Yoshiko Kojima, Yoshiki Iwamoto, Kaoru Yoshida,
A motor learning mechanism called saccadic adaptation ensures accuracy of saccades throughout life despite growth, aging, and some pathologies of the oculomotor plant or nervous system. The present study investigates effects of preceding adaptation on the speed of subsequent adaptation during single experiments. Adaptive changes in gain (movement size divided by target eccentricity) were induced by intrasaccadic step (ISS) of the target. After the gain was altered (control block), we reversed the direction ...
Tópico(s): Olfactory and Sensory Function Studies
2004 - Society for Neuroscience | Journal of Neuroscience
Kiyotaka Nakamagoe, Y. Iwamoto, Kaoru Yoshida,
The cerebellar flocculus has been implicated in vestibulo-oculomotor control. One major central input to this structure originates from brainstem cells in the paramedian tract (PMT), whose function is unknown. Here it is reported that PMT cells in the pons carry vestibular and eye movement signals and their pharmacological inactivation produces a leaky integrator combined with vestibular imbalance. The results suggest that PMT cells provide the cerebellum with sensory and motor signals that are essential ...
Tópico(s): Hearing, Cochlea, Tinnitus, Genetics
2000 - American Association for the Advancement of Science | Science
Sohei Chimoto, Yoshiki Iwamoto, Kaoru Yoshida,
Projections and firing properties of down eye-movement neurons in the interstitial nucleus of Cajal in the cat. To clarify the role of the interstitial nucleus of Cajal (INC) in the control of vertical eye movements, projections of burst-tonic and tonic neurons in and around the INC were studied. This paper describes neurons with downwardon directions. We examined, by antidromic activation, whether these down INC (d-INC) neurons contribute to two pathways: a commissural pathway to the contralateral ( ...
Tópico(s): Neural dynamics and brain function
1999 - American Physiological Society | Journal of Neurophysiology
Hiroyasu Nakayama, Bin Xu, Sotaro Iwamoto, Kaoru Yamamoto, Ryo Iguchi, Asuka Miura, Takamasa Hirai, Yoshio Miura, Yuya Sakuraba, Junichiro Shiomi, Ken‐ichi Uchida,
Thermal switching provides an effective way for active heat flow control, which has recently attracted increasing attention in terms of nanoscale thermal management technologies. In magnetic and spintronic materials, the thermal conductivity depends on the magnetization configuration: this is the magneto-thermal resistance effect. Here we show that an epitaxial Cu/Co$_{50}$Fe$_{50}$ multilayer film exhibits giant magnetic-field-induced modulation of the cross-plane thermal conductivity. The magneto- ...
Tópico(s): Thermal Radiation and Cooling Technologies
2021 - American Institute of Physics | Applied Physics Letters
Takeshi Kanda, Yoshiki Iwamoto, Kaoru Yoshida, Hiroshi Shimazu,
Pontine omnipause neurons (OPNs) are inhibitory neurons projecting to saccade-related premotor burst neurons. OPNs exhibit sustained discharge during fixations and cease firing before and during saccades. The pause in OPN discharge releases the burst neurons from tonic inhibition, resulting in generation of saccadic eye movements. OPNs are thought to receive two major inhibitory inputs during saccades: an early component that determines the pause onset and a late component that controls the pause ...
Tópico(s): Neural dynamics and brain function
2006 - Elsevier BV | Neuroscience Letters
J. A. Van Gisbergen, David A. Robinson, Stan Gielen,
... Inhibition in Shaping Activity of Saccadic Burst NeuronsYoshiki Iwamoto, Hitoshi Kaneko, Kaoru Yoshida, and Hiroshi Shimazu1 June 2009 | Journal of ... to Saccade Adaptation in the MonkeyYoshiko Kojima, Yoshiki Iwamoto, Farrel R. Robinson, Christopher T. Noto, and Kaoru Yoshida1 January 2008 | Journal of Neurophysiology, Vol. 99, ...
Tópico(s): Vestibular and auditory disorders
1981 - American Physiological Society | Journal of Neurophysiology
Albert F. Fuchs, D.A. Robinson,
... Inhibition in Shaping Activity of Saccadic Burst NeuronsYoshiki Iwamoto, Hitoshi Kaneko, Kaoru Yoshida, and Hiroshi Shimazu1 June 2009 | Journal of ... to Saccade Adaptation in the MonkeyYoshiko Kojima, Yoshiki Iwamoto, Farrel R. Robinson, Christopher T. Noto, and Kaoru Yoshida1 January 2008 | Journal of Neurophysiology, Vol. 99, ...
Tópico(s): Retinal Development and Disorders
1966 - American Physiological Society | Journal of Applied Physiology
Tsunenori OKADA, Juzi IWAMOTO, Kaoru Sano,
In the present paper, cavitation erosion of several structure materials is studied by means of continuous observations by a scanning electron microscope, etc. Erosion damages are affected by the grain orientation on testing surfaces as well as the crystal structure of test materials. On the whole, erosion resistance decreases according to an increase in the plastic deformation of grains.
Tópico(s): Aerosol Filtration and Electrostatic Precipitation
1977 - Japan Society Mechanical Engineers | Bulletin of JSME
... Inhibition in Shaping Activity of Saccadic Burst NeuronsYoshiki Iwamoto, Hitoshi Kaneko, Kaoru Yoshida, and Hiroshi Shimazu1 June 2009 | Journal of ...
Tópico(s): Glaucoma and retinal disorders
1974 - American Physiological Society | Journal of Neurophysiology
Chris R. S. Kaneko, Craig Evinger, Albert F. Fuchs,
... Inhibition in Shaping Activity of Saccadic Burst NeuronsYoshiki Iwamoto, Hitoshi Kaneko, Kaoru Yoshida, and Hiroshi Shimazu1 June 2009 | Journal of ...
Tópico(s): Glaucoma and retinal disorders
1981 - American Physiological Society | Journal of Neurophysiology
Erich S. Luschei, Albert F. Fuchs,
... Inhibition in Shaping Activity of Saccadic Burst NeuronsYoshiki Iwamoto, Hitoshi Kaneko, Kaoru Yoshida, and Hiroshi Shimazu1 June 2009 | Journal of ...
Tópico(s): Visual perception and processing mechanisms
1972 - American Physiological Society | Journal of Neurophysiology
Masaaki Motozawa, Shota Ishitsuka, Kaoru Iwamoto, Hirotomo Ando, Tetsuya Senda, Yasuo Kawaguchi,
Tópico(s): Heat Transfer Mechanisms
2011 - Springer Science+Business Media | Flow Turbulence and Combustion
Nobuhide Kasagi, Yosuke Hasegawa, Koji Fukagata, Kaoru Iwamoto,
Because of the importance of fundamental knowledge on turbulent heat transfer for further decreasing entropy production and improving efficiency in various thermofluid systems, we revisit a classical issue whether enhancing heat transfer is possible with skin friction reduced or at least not increased as much as heat transfer. The answer that numerous previous studies suggest is quite pessimistic because the analogy concept of momentum and heat transport holds well in a wide range of flows. Nevertheless, ...
Tópico(s): Heat Transfer Mechanisms
2012 - ASM International | Journal of Heat Transfer
Akira Murata, Satomi Nishida, Hiroshi Saito, Kaoru Iwamoto, Yoji Okita, Chiyuki Nakamata,
Cooling at the trailing edge of a gas turbine airfoil is one of the most difficult problems because of its thin shape, high thermal load from both surfaces, hard-to-cool geometry of narrow passages, and at the same time demand for structural strength. In this study, the heat transfer coefficient and film cooling effectiveness on the pressure-side cutback surface was measured by a transient infrared thermography method. Four different cutback geometries were examined: two smooth cutback surfaces ...
Tópico(s): Fluid Dynamics and Turbulent Flows
2012 - ASM International | Journal of Turbomachinery
Yukinori Kametani, Koji Fukagata,
... Yosuke Hasegawa (The University of Tokyo), and Dr. Kaoru Iwamoto (Tokyo University of Agriculture and Technology) for fruitful ...
Tópico(s): Fluid Dynamics and Vibration Analysis
2012 - Taylor & Francis | Journal of Turbulence
Kaoru Iwamoto, Koji Fukagata, Nobuhide Kasagi, Yuji Suzuki,
The Reynolds-number dependence of the drag reduction achievable by diminishing to zero the near-wall turbulent velocity fluctuations is clarified. This reduction could be obtained by a virtual active feedback control system. The formula derived suggests that large drag reduction can be attained even at high Reynolds numbers if turbulence fluctuations adjacent to the wall are completely damped. For example, 35% drag reduction rate can be obtained at Reτ=105 if the turbulence only below y+=10 vanishes. ...
Tópico(s): Aerodynamics and Acoustics in Jet Flows
2004 - American Institute of Physics | Physics of Fluids
Tomohiro Yokozeki, Kaoru Iwamoto,
Core machining is often applied to improve the formativeness of foam core and the manufacturing effectiveness of sandwich panels. This paper investigates the effects of core machining configuration on the interfacial debonding toughness of foam core sandwich panels fabricated by vacuum-assisted resin transfer molding process. Several machining configurations are conducted to foam core, and skin–core debonding toughness of fabricated sandwich panels is evaluated using double-cantilever-beam tests. ...
Tópico(s): Polymer composites and self-healing
2014 - Taylor & Francis | Advanced Composite Materials
Masaaki Motozawa, Takanobu Sawada, Shota Ishitsuka, Kaoru Iwamoto, Hirotomo Ando, Tetsuya Senda, Yasuo Kawaguchi,
Streamwise development of the turbulent structure of the drag-reducing channel flow by dosed polymer solution from a channel wall was investigated experimentally. Particle image velocimetry (PIV) was employed to investigate the turbulent structure in the x–y plane and we carried out PIV measurements downstream at three positions: 250 mm (position 1), 800 mm (position 2), and 1350 mm (position 3) from the leading edge of the dosing wall. The Reynolds number based on the channel height and the bulk mean ...
Tópico(s): Fluid Dynamics and Vibration Analysis
2014 - Elsevier BV | International Journal of Heat and Fluid Flow