A5066113108- Magnetism in coordination complexes
- Olfactory and Sensory Function Studies
- Advanced Condensed Matter Physics
- Physics of Superconductivity and Magnetism
- Organic and Molecular Conductors Research
- Neurobiology and Insect Physiology Research
- Multiferroics and related materials
- Traumatic Brain Injury and Neurovascular Disturbances
- Nuclear materials and radiation effects
- Theoretical and Computational Physics
- Magnetic properties of thin films
- Magnetic Properties and Synthesis of Ferrites
- Intracranial Aneurysms: Treatment and Complications
- Acute Ischemic Stroke Management
- Electron Spin Resonance Studies
- Magnetic and transport properties of perovskites and related materials
- Neuroscience and Neuropharmacology Research
- Characterization and Applications of Magnetic Nanoparticles
- Neurosurgical Procedures and Complications
- Memory and Neural Mechanisms
- Advanced NMR Techniques and Applications
- Animal Behavior and Reproduction
- Advanced Chemical Sensor Technologies
- Cerebrovascular and Carotid Artery Diseases
- Insect Pheromone Research and Control
The University of Tokyo
2017-2024
University of Lausanne
2020-2024
Swiss Integrative Center for Human Health
2021
Kyushu Institute of Technology
2002-2018
National Institute for Materials Science
2002
Hosei University
2000
Tokyo Metropolitan Hiroo Hospital
1983-1993
Osaka University
1967-1983
Ohkubo Hospital
1981
University of Cologne
1980
In the orbitofrontal olfactory area (LPOF) which was delineated in a previous paper, capacity for odor discrimination studied and compared with that anterior pyriform cortex (AP), medial portion of amygdala (MA), bulb (OB). Unanesthetized monkeys were used eight odors applied. 1. OB, 12.5% cells responded to only one odor, five most numerous (25%). The total two, three, four 52%, less than responding four, (67.5%). A small number oc all (2.5%). responses classified as an increase (+type),...
An olfactory projection area was studied in monkeys anesthetized with Nembutal. 1. Evoked potentials were recorded when the bulb (OB) electrically stimulated lateroposterior portion of orbitofrontal cortex (LPOF). However, those disappeared anterior pyriform (AP) (probably together medial amygdala (MA)) aspirated or destroyed. 2. In nearly entire hypothalamic region, evoked by same stimulation OB. When region stimulated, LPOF. 3. The LPOF due to OB never even thalamus extensively destroyed...
1. Evoked potentials restricted to the magnocellular portion of mediodorsal nucleus (MDmc) thalamus were recorded after stimulation olfactory bulb (OB) and posterior orbital cortex frontal lobe (OFC). Potentials evoked by OB probably trans-synaptically elicited, while OFC a result antidromic activation. 2. The area in which could elicit MDmc was located centroposterior (CPOF). This corresponds approximately Walker's (80) 13 von Bonin Bailey's (9) FF, is situated medial just anterior...
1. In the rabbit olfactory bulb, intracellular potentials were recorded from mitral cells and neurones in granule cell layer (g.c.l.) following lateral tract (l.o.t.) stimulation. 2. Most recordings showed large (5-21 mV) prolonged (60-650 msec) i.p.s.p.s subseuqent to antidromic spikes. These decreased amplitude then reversed polarity by progressive increase hyperpolarizing current applied intracellularly. They accompanied a prominent long lasting (up 100 conductance of membrane. 3....
The low temperature magnetic properties of pyrochlore compound Dy2Ti2O7 in fields applied along the [111] direction are reported. Below 1 K, a clear plateau has been observed magnetization process field range 2~9 kOe, followed by sharp moment jump at around 10 kOe that corresponds to breaking spin ice state. We found state is disordered with residual entropy nearly half value zero-field state, whose macroscopic degeneracy comes from frustration spins on kagome layers perpendicular field.
Low temperature magnetization measurements on the pyrochlore spin ice compound Dy2Ti2O7 reveal that ice-rule breaking flip, appearing at H approximately 0.9 T applied parallel to [111] direction, turns into a novel first-order transition for T<0.36 K which is most probably of liquid-gas type. T-linear variation critical field observed down 0.03 suggests unusual situation entropy release across remains finite [approximately 0.5 (J/K) x mol-Dy] as T-->0, in accordance with macroscopic...
Sixty patients with acute subdural hematoma were treated at Tokyo Metropolitan Hiroo Hospital between 1981 and 1989. The overall mortality was 55% the functional recovery rate 30%. Thirteen (93%) of 14 a Glasgow Coma Scale (GCS) score 3 died, while all eight GCS 7 or more achieved recovery. scores 4-6 ranged from 45 to 67%. Patients over 65 years old had 82%, compared 50% for those aged 19-40 years. operated on within 4 hours injury 62% in contrast 33% 10 hours. who underwent craniotomy...
The evolutionary expansion of sensory neuron populations detecting important environmental cues is widespread, but functionally enigmatic. We investigated this phenomenon through comparison homologous olfactory pathways Drosophila melanogaster and its close relative sechellia, an extreme specialist for Morinda citrifolia noni fruit. D. sechellia has evolved species-specific expansions in select, noni-detecting (OSN) populations, multigenic changes. Activation inhibition defined proportions...
The organic radical-ion salt DEOCC-TCNQF4 contains linear chains of stacked molecules with significant Heisenberg antiferromagnet interactions along the chain and extremely weak between chains. Zero-field muSR has confirmed absence long-range magnetic order down to 20 mK field-dependent is found be consistent diffusive motion spin excitations. anisotropic dynamics upper boundary for ordering temperature both indicate interchain coupling /J'/<7 mK. As intrachain J 110 K, /J'/J/ significantly...
A multi-center double blind study for the clinical evaluation of TCUK was carried out on 115 patients with cerebral thrombosis.The administration done continuously in doses 60, 000 I. U. 7 days under comparison negative placebo.The performed according to protocol, shown Table 1-6 and effects were judged by grade improvement apparent subjective complaints, disturbances consciousness, motorius sensorial disorders extremities comprehensive daily life activities. The total scoring improvements...
In magnetic nanoparticles, anisotropy energy has extra contributions compared to that of the bulk counterparts, being most relevant surface anisotropy. Here we use pressure separate core from in one system maghemite nanoparticles dispersed a polymer. The is Kcore=7.7×105 erg/cm3 while KS=4.2×10−2 erg/cm2. This in-one-sample separation possible due changes structurally ordered and disordered ratio, which induce average energy.
We have performed ultrasonic measurements on the $\ensuremath{\alpha}$-pyrochlore spin compounds ${R}_{2}$Ti${}_{2}$O${}_{7}$, $R=$ Tb, Dy, and Ho. A distinct dip appears around 80 K, especially in transverse modes $({C}_{11}\ensuremath{-}{C}_{12})/2$ $C$${}_{44}$ as a function of temperature Dy${}_{2}$Ti${}_{2}$O${}_{7}$ Ho${}_{2}$Ti${}_{2}$O${}_{7}$ compounds. This anomaly may correspond to structural change detected by dependence permittivity loss-angle tangent. No was observed at lower...
We report on the low temperature magnetism of pyrochlore oxide Pr2Zr2O7. The crystal electric field ground state in Pr3+ (4f2, J = 4) ions has non-Kramers doublet with local <111> Ising magnetic anisotropy. negative Curie-Weiss below 10 K (-0.55 K) indicates an antiferromagnetic coupling between spins. AC susceptibility does not exhibit any long range ordering at least down to 76 mK. Instead, a frequency dependence is observed 0.3 K, indicating spin freezing behavior. Furthermore, recently...
1. In the rabbit olfactory bulb, analysis has been carried out on intracellular potentials recorded from mitral cells and neurones in granule cell layer (g.c.l. cells) addition to extracellular field bulb elicited by anterior commissure (a.c.) stimulation. 2. Most recordings showed i.p.s.p.s with latency of 7-11 msec following a.c. These were similar those evoked lateral tract (l.o.t.) stimulation their sensitivity internally applied current asymmetrical reversal during application...
Interneurons mediating the fast IPSPs in principal cells pyriform cortex (PC) of rabbit were searched for using criteria derived from analysis properties inhibitory postsynaptic potentials (IPSPs). Thirty units identified as interneurons. The interneurons activated synaptically by volleys olfactory bulb (OB), lateral tract (LOT), anterior commissure (AC), and deep-lying structures PC (DPC). showed a tendency to discharge repetitively response shocks applied these basal forebrain (OB, LOT,...
Raman scattering spectra of iridium pyrochlore oxides R2Ir2O7 (R=Nd, Sm, and Eu) have been measured. These three compounds undergo metal-insulator transition. Below the transition temperature TMI, new peaks appear for R = Sm Eu, but no remarkable change Nd. Therefore, Sm2Ir2O7 Eu2Ir2O7 accompany structural with transition, not case Even if Nd2Ir2O7 deforms, distortion is different from that Eu2Ir2O7, because Nd are clearly those Eu below TMI.