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  • 1
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    Thermal study of the interplay between spin and lattice in CoCr_{2}O_{4} and CdCr_{2}O_{4} (2013)
    American Physical Society (APS)
    Details
    Publication Date: 2013-02-05
    Description: Author(s): Suguru Kitani, Makoto Tachibana, Naoya Taira, and Hitoshi Kawaji The interplay between spin and lattice degrees of freedom in the spinels CoCr 2 O 4 and CdCr 2 O 4 has been investigated by heat capacity and thermal expansion measurements. In CoCr 2 O 4 , sharp anomalies are observed at the magnetic phase transition temperatures of 13, 26, and 93 K. A large pressure depende... [Phys. Rev. B 87, 064402] Published Mon Feb 04, 2013
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 2
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    Magnetic dichroism in angle-resolved hard x-ray photoemission from buried layers (2011)
    American Physical Society (APS)
    Details
    Publication Date: 2011-08-16
    Description: Author(s): Xeniya Kozina, Gerhard H. Fecher, Gregory Stryganyuk, Siham Ouardi, Benjamin Balke, Claudia Felser, Gerd Schönhense, Eiji Ikenaga, Takeharu Sugiyama, Naomi Kawamura, Motohiro Suzuki, Tomoyuki Taira, Tetsuya Uemura, Masafumi Yamamoto, Hiroaki Sukegawa, Wenhong Wang, Koichiro Inomata, and Keisuke Kobayashi This work reports the measurement of magnetic dichroism in angular-resolved photoemission from in-plane magnetized buried thin films. The high bulk sensitivity of hard x-ray photoelectron spectroscopy (HAXPES) in combination with circularly polarized radiation enables the investigation of the magnet... [Phys. Rev. B 84, 054449] Published Mon Aug 15, 2011
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 3
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    Neural correlates for perception of 3D surface orientation from texture gradient (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-10-12
    Description: A goal in visual neuroscience is to reveal how the visual system reconstructs the three-dimensional (3D) representation of the world from two-dimensional retinal images. Although the importance of texture gradient cues in the process of 3D vision has been pointed out, most studies concentrate on the neural process based on binocular disparity. We report the neural correlates of depth perception from texture gradient in the cortex. In the caudal part of the lateral bank of intraparietal sulcus, many neurons were selective to 3D surface orientation defined by texture gradient, and their response was invariant over different types of texture pattern. Most of these neurons were also sensitive to a disparity gradient, suggesting that they integrate texture and disparity gradient signals to construct a generalized representation of 3D surface orientation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tsutsui, Ken-Ichiro -- Sakata, Hideo -- Naganuma, Tomoka -- Taira, Masato -- New York, N.Y. -- Science. 2002 Oct 11;298(5592):409-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Nihon University School of Medicine, Tokyo 173-8610, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12376700" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain Mapping ; Cues ; Depth Perception/*physiology ; Electrophysiology ; Form Perception/*physiology ; Learning ; Macaca ; Male ; Neurons/*physiology ; Parietal Lobe/*physiology ; Pattern Recognition, Visual ; Photic Stimulation ; Task Performance and Analysis ; Vision Disparity ; Visual Pathways/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Control of hippocampal morphogenesis and neuronal differentiation by the LIM homeobox gene Lhx5 (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-05-15
    Description: The mammalian hippocampus contains the neural circuitry that is crucial for cognitive functions such as learning and memory. The development of such circuitry is dependent on the generation and correct placement of the appropriate number and types of neurons. Mice lacking function of the LIM homeobox gene Lhx5 showed a defect in hippocampus development. Hippocampal neural precursor cells were specified and proliferated, but many of them failed to either exit the cell cycle or to differentiate and migrate properly. Lhx5 is therefore essential for the regulation of precursor cell proliferation and the control of neuronal differentiation and migration during hippocampal development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhao, Y -- Sheng, H Z -- Amini, R -- Grinberg, A -- Lee, E -- Huang, S -- Taira, M -- Westphal, H -- New York, N.Y. -- Science. 1999 May 14;284(5417):1155-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Mammalian Genes and Development, National Institute of Child Health and Human Development, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10325223" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Body Patterning ; Cell Differentiation ; Cell Division ; Cell Movement ; Crosses, Genetic ; Dentate Gyrus/cytology/embryology ; Female ; Gene Deletion ; Gene Expression ; *Genes, Homeobox ; Hippocampus/*cytology/*embryology ; Homeodomain Proteins/*genetics/physiology ; Interneurons/cytology ; LIM-Homeodomain Proteins ; Male ; Mice ; Morphogenesis ; Nerve Tissue Proteins/*genetics/physiology ; Neuroglia/cytology ; Neurons/*cytology ; Pyramidal Cells/cytology ; Stem Cells/*cytology ; Transcription Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Cognitive neurophysiology of the motor cortex (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-04-02
    Description: A major challenge of current neuroscience is to elucidate the brain mechanisms that underlie cognitive function. There is no doubt that cognitive processing in the brain engages large populations of cells. This article explores the logic of investigating these problems by combining psychological studies in human subjects and neurophysiological studies of neuronal populations in the motor cortex of behaving monkeys. The results obtained show that time-varying psychological processes can be visualized in the time-varying activity of neuronal populations. Moreover, the functional interactions between cells in the motor cortex are very similar to those observed in a massively interconnected artificial network performing the same computation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Georgopoulos, A P -- Taira, M -- Lukashin, A -- NS17413/NS/NINDS NIH HHS/ -- PSMH48185/PS/NCHHSTP CDC HHS/ -- New York, N.Y. -- Science. 1993 Apr 2;260(5104):47-52.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉American Legion, Minneapolis, MN.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8465199" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/physiology ; Cognition/*physiology ; Electrophysiology ; Haplorhini ; Humans ; Macaca mulatta ; Mathematics ; Motor Activity/physiology ; Motor Cortex/*physiology ; Movement ; Neurons/physiology ; Space Perception/physiology ; Vision, Ocular/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    The motor cortex and the coding of force (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-06-19
    Description: The relation of cellular activity in the motor cortex to the direction of two-dimensional isometric force was investigated under dynamic conditions in monkeys. A task was designed so that three force variables were dissociated: the force exerted by the subject, the net force, and the change in force. Recordings of neuronal activity in the motor cortex revealed that the activity of single cells was directionally tuned and that this tuning was invariant across different directions of a bias force. Cell activity was not related to the direction of force exerted by the subject, which changed drastically as the bias force changed. In contrast, the direction of net force, the direction of force change, and the visually instructed direction all remained quite invariant and congruent and could be the directional variables, alone or in combination, to which cell activity might relate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Georgopoulos, A P -- Ashe, J -- Smyrnis, N -- Taira, M -- NS07226/NS/NINDS NIH HHS/ -- NS17413/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1992 Jun 19;256(5064):1692-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Brain Sciences Center, Department of Veterans Affairs Medical Center, Minneapolis, MN 55455.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1609282" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Electrophysiology ; Haplorhini ; Isometric Contraction/*physiology ; Motor Activity/physiology ; Motor Cortex/*physiology ; Motor Neurons/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Structural, chemical, and electronic properties of the Co_{2}MnSi(001)/MgO interface (2013)
    American Physical Society (APS)
    Details
    Publication Date: 2013-05-18
    Description: Author(s): Roman Fetzer, Jan-Peter Wüstenberg, Tomoyuki Taira, Tetsuya Uemura, Masafumi Yamamoto, Martin Aeschlimann, and Mirko Cinchetti The performance of advanced magnetic tunnel junctions built of ferromagnetic (FM) electrodes and MgO as an insulating barrier depends decisively on the properties of the FM/insulator interface. Here we investigate interface formation between the Co-based Heusler compound Co 2 MnSi (CMS) and MgO by mea... [Phys. Rev. B 87, 184418] Published Fri May 17, 2013
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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  • 8
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    Mouse interferons: amino terminal amino acid sequences of various species (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-02-01
    Description: Mouse interferons of three size classes (A, 35,000 to 40,000 daltons; B, 26,000 to 33,000 daltons; and C, 20,000 daltons) were purified from Ehrlich ascites tumor cells infected with Newcastle disease virus. The sequences of the first 24 amino acids (No. 17 has not been identified) of interferons A and B are identical. The sequence of the first 20 amino acids of interferon C differs from that of A and B in 18 positions. There is partial homology in amino terminal sequence between mouse interferons A (or B) and a human fibroblast interferon and between mouse interferon C and a human lymphoblastoid interferon.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taira, H -- Broeze, R J -- Jayaram, B M -- Lengyel, P -- Hunkapiller, M W -- Hood, L E -- New York, N.Y. -- Science. 1980 Feb 1;207(4430):528-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7352261" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Biological Evolution ; Carcinoma, Ehrlich Tumor/analysis ; Cells, Cultured ; Glycoproteins/analysis ; *Interferons/genetics ; Mice ; Molecular Weight
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Effects of off-stoichiometry on the spin polarization at the Co_{2}Mn_{β}Ge_{0.38}/MgO interfaces: X-ray magnetic circular dichroism study (2012)
    American Physical Society (APS)
    Details
    Publication Date: 2012-10-20
    Description: Author(s): V. R. Singh, V. K. Verma, K. Ishigami, G. Shibata, T. Kadono, A. Fujimori, D. Asakura, T. Koide, Y. Miura, M. Shirai, G.-f. Li, T. Taira, and M. Yamamoto We have studied the electronic and magnetic states of Mn and Co atoms at the Co 2 Mn β Ge 0 .38 (CMG)/MgO ( β =0.67–1.8) interfaces, which constitute CMG/MgO/CMG magnetic tunnel junctions, by means of x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroisms (XMCDs) at the Mn and Co L 2 ,3 ed... [Phys. Rev. B 86, 144412] Published Fri Oct 19, 2012
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
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