A5042571762- Magnetic properties of thin films
- Metallic Glasses and Amorphous Alloys
- Balance, Gait, and Falls Prevention
- Magnetic Properties and Applications
- Cerebral Palsy and Movement Disorders
- Microstructure and Mechanical Properties of Steels
- Parkinson's Disease Mechanisms and Treatments
- Effects of Vibration on Health
- Metal and Thin Film Mechanics
- Muscle activation and electromyography studies
- Social Robot Interaction and HRI
- Magnetic Properties and Synthesis of Ferrites
- ZnO doping and properties
- Copper Interconnects and Reliability
- Metal Alloys Wear and Properties
- Magnetic Properties of Alloys
- Adhesion, Friction, and Surface Interactions
- Microstructure and mechanical properties
- Theoretical and Computational Physics
- Musculoskeletal pain and rehabilitation
- Autism Spectrum Disorder Research
- Advanced materials and composites
- Pain Mechanisms and Treatments
- Semiconductor materials and devices
- Characterization and Applications of Magnetic Nanoparticles
Hokkaido University
2015-2025
Health Sciences University of Hokkaido
2016-2025
Kindai University
2021-2024
Oregon Health & Science University
2019-2023
Sapporo University
2014-2021
Meikai University
2015-2020
Kanagawa Institute of Technology
2000-2019
Inoue Hospital
2017-2019
NTN (Japan)
2019
Hyogo Medical University
2018
This study aimed to determine the most sensitive objective measures of balance dysfunction that differ between people with Parkinson’s Disease (PD) and healthy controls. One-hundred forty-four PD 79 age-matched controls wore eight inertial sensors while performing tasks measure five domains balance: standing posture (Sway), anticipatory postural adjustments (APAs), automatic responses (APRs), dynamic (Gait) limits stability (LOS). To reduce initial 93 measures, we selected uncorrelated were...
Magnetic and structural properties of microcrystalline Fe-M-C (M=V, Nb, Ta) alloy films prepared by annealing sputter-deposited amorphous were investigated. These new alloys are composed α-Fe M carbides with grain diameter less than 10 nm. Good soft magnetic high saturation flux density up to 1.6 T obtained for Fe-Nb-C Fe-Ta-C films. Suppression the growth fine carbide particles resulted in thermal stability. In particular, Fe- Ta-C exhibited low coercive force 65 A/m even after annealed at...
Abstract Few exercise interventions practice both gait and balance tasks with cognitive to improve functional mobility in people PD. We aimed investigate whether the Agility Boot Camp Cognitive Challenge (ABC-C), that simultaneously targets function, improves dynamic dual-task individuals Parkinson’s disease (PD). used a cross-over, single-blind, randomized controlled trial determine efficacy of intervention. Eighty-six idiopathic PD were into either an (ABC-C)-first or active, placebo,...
Cognitive loads impact postural control; however, the specific influence of sensory modalities employed in cognitive tasks during motor-cognitive dual remains unclear. This study investigated distinct effects visual and auditory on static control while controlling for differences task content. Twenty-five healthy young adults were instructed to maintain a quiet stance force plate under three conditions: single motor (control), paced serial addition (visual), (auditory). Center pressure (COP)...
Exchange coupling between antiferromagnetic Pt-Mn and ferromagnetic films was investigated. By varying the composition in bilayer NiFe/PtMn films, values of exchange-coupling field (Hex) were obtained Pt range 4 24 at%, both asdeposited state after annealing. In 44 54 Hex only We precisely investigated with a Pt48Mn52 at% annealed at 190-250°C showed that coupled 2-4 nm NiFe annealing 230°C for h 500-680 Oe. The blocking temperatures 3 NiFe, 20 Co, Co almost same value, 380°C...
Background: Balance deficits in people with Parkinson's disease (PD) are often not helped by pharmacological or surgical treatment. Although balance exercise intervention has been shown to improve clinical measures of balance, the efficacy on different, objective domains is still unknown. Objective: To compare sensitivity change and several different gait following an Agility Boot Camp Cognitive Challenges (ABC-C) intervention. Methods: In this cross-over, randomized design, 86 individuals...
Background: There is a lack of recommendations for selecting the most appropriate gait measures Parkinson’s disease (PD)-specific dual-task costs to use in clinical practice and research. Objective: We aimed identify turning that best discriminate performance people with PD from healthy individuals. also investigated relationship between discriminative severity duration. Methods: People mild-to-moderate (n = 144) age-matched individuals 79) wore 8 inertial sensors while walking under single...
Spin valve films with the PtMn/Co/Ru/Co synthetic ferrimagnet pinned layer, in which magnetization of two Co layers is strongly coupled an antiparallel orientation and direction one by unidirectional exchange coupling PtMn, were investigated. PtMn demonstrated to exhibit strong field Hex exceeding 2500 Oe at optimum thickness combination for either on top or bottom. The rapidly increased layer around 10–12 nm was nearly constant from 12 30 nm. It also found that saturation Co(3 nm)/Ru(0.8...
The benefit of visual feedback the center pressure (COP) on quiet standing is still debatable. This study aimed to investigate adaptation effects training using both COP and gravity (COG) during standing. Thirty-four healthy young adults were divided into three groups randomly (COP + COG, COP, control groups). A force plate was used calculate coordinates in anteroposterior (COPAP) mediolateral (COPML) directions. motion analysis system mass (COM) directions (COMAP COMML). COG AP direction...
We report that the spin-valve films using antiferromagnetic /spl alpha/-Fe/sub 2/O/sub 3/ layers show good MR response due to coercivity difference in an as-deposited state and unidirectional biasing field after magnetic annealing. Both high of pinned layer is caused by exchange coupling. The obtained ratio 6.1% higher than those other spin-valves Fe-Mn or Ni-Mn owing resistivity 3/. Further 10% achieved imposing 1 nm-thick Co at Ni-Fe/Cu interfaces. It was found free these smaller...
Augmented sensory biofeedback training is often used to improve postural control. Our previous study showed that continuous auditory was more effective than visual sway while standing. However, it has also been reported both discrete and training, presented intermittently, improves bimanual task performance training. Therefore, this aimed investigate the relative effectiveness of versus Twenty-two healthy young adults were randomly assigned either a or group. Participants asked shift their...
This paper proposes the human interface of an eating assistant robot to assist people with severe disability gain/regain independence in eating. A spoon and a CCD camera are attached on tip robotic arm. The can be actuated three orthogonal directions, also rotated. PC display indicates image control panel robot. proposed uses head pointing device. user easily by using his/her action puff activated switch. describes evaluation user's emotion during operation galvanic skin reflex (GSR) sensor...
. The purpose of this study was to clarify the age-related effects distances from center pressure (COP) mass (COM) (COP-COM distances) during one-leg standing (OLS) task. Healthy old and young adults (n = 11 each) participated in study. authors divided task into 3 phases (accelerated, decelerated, steady) based on relationship between COM COP. COP-COM older group were significantly reduced accelerated phase, then increased decelerated steady phases. Furthermore, these correlated inversely...
Integration of visual, vestibular, and proprioceptive sensations contributes to postural control. People with peripheral visual field loss have serious instability. However, the directional specificity stability sensory reweighting caused by gradual remain unclear. What are effects on static control? Fifteen healthy young adults participated in this study. The participants were asked stand quietly a foam surface. Three conditions virtual (90°, 45°, 15°) provided head-mounted display, ground...
The magnetic and structural properties of microcrystalline Fe-M-C (M = V, Nb, Ta) alloy films prepared by annealing sputter-deposited amorphous were investigated. These new alloys are composed α-Fe M carbides with grain diameters less than 10 nm. Good soft high saturation flux densities up to 1.6 T obtained for Fe-Nb-C Fe-Ta-C films. Suppression the growth grains fine carbide particles resulted in thermal stability. In particular, exhibited a low coercive force, 65 A/m, even after at 973 K....
Microcrystalline Fe-M-C (M=Ti, Zr, Hf, V, Nb, Ta) films crystallized from amorphous state are suitable for use in magnetic heads. The crystallization of these is supposed to be initiated by nucleation fine M carbides because the strong affinity carbon. precipitated Fe-rich phase was found a supersaturated solid solution which has tetragonally deformed lattice, and it gradually changes bcc as annealing temperature increases. In alloys, change soft properties with seems strongly affected grain...