3,331 research outputs found

    Distribution. NW, N, Northern Highlands, NE & CW Madagascar. in Tenrecidae

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    Distribution. NW, N, Northern Highlands, NE & CW Madagascar.Published as part of Russell A. Mittermeier & Don E. Wilson, 2018, Tenrecidae, pp. 134-172 in Handbook of the Mammals of the World – Volume 8 Insectivores, Sloths and Colugos, Barcelona :Lynx Edicions on page 167, DOI: 10.5281/zenodo.680823

    Distribution. CW Peru S to N Chile. in Cricetidae

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    Distribution. CW Peru S to N Chile.Published as part of Don E. Wilson, Russell A. Mittermeier & Thomas E. Lacher, Jr, 2017, Cricetidae, pp. 204-535 in Handbook of the Mammals of the World – Volume 7 Rodents II, Barcelona :Lynx Edicions on page 526, DOI: 10.5281/zenodo.670714

    Neuronal correlates of binocular rivalry in second-order patterns

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    It has been recently reported that there is binocular rivalry in second-order patterns with a dynamic carrier [Kim et al, 2006 Journal of Vision 6(6), VSS 07, abstract 47a]. To find neuronal correlates of second-order binocular rivalry, we measured BOLD signal changes in early visual cortex while subjects viewed uncorrelated dynamic random-dot fields whose contrasts were modulated at 1.5 cycles deg-1 sine-wave with orientation of ±45°. Subjects were required to press either right or left button for alternating percepts tilted rightward or leftward, respectively. We found that there is no difference of V1 activity in both hemispheres when either right or left response was made. However, there was a fluctuation of activity in V2 for alternating percepts. V2 activity increased with the right response and decreased with the left response in the left hemisphere, while the activity pattern was reversed in the right hemisphere. These results indicate that V2 area is a special site for second-order binocular processing as suggested in form and motion vision

    Distribution. CW Argentina (Mendoza Province), E of the Andes. in Ctenomyidae

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    Distribution. CW Argentina (Mendoza Province), E of the Andes.Published as part of Don E. Wilson, Thomas E. Lacher, Jr & Russell A. Mittermeier, 2016, Ctenomyidae, pp. 498-534 in Handbook of the Mammals of the World – Volume 6 Lagomorphs and Rodents I, Barcelona :Lynx Edicions on page 533, DOI: 10.5281/zenodo.658817

    The optimization of the Wilson-Devinney method: an application to CW CAS

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    We present a new method for the light curve solution of eclipsing binaries, which includes the Wilson and Devinney (1971) Roche-model vased approach but uses a minimizatiion procedure specifically designed to find global minima. After testing its efficiency by means of computer generated light curves, we applied it to CW Cas, a contact system whose solution by other methods turns not to be uniqu

    Cw ion lasers pumped by electron beams

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    We have obtained cw laser radiation from singly ionized Hg, I, Cd, Se, and As by exciting He metal-vapor mixtures with a dc electron beam. The beam is generated by glow discharge electron guns located apart from the active medium. This is the first time that cw ion laser action has been obtained using electron beam excitation

    CW laser action in atomic fluorine

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    We have obtained CW laser action on four transitions in the doublet system of atomic fluorine for the first time. All previously reported laser action was on a pulsed basis only. CW laser radiation was obtained when F2 or AgF was used as a fluorine donor in an electron beam pumped helium plasma. A multiline output power of 200 mW was obtained

    CW silver ion laser with electron beam excitation

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    A CW laser power of 140 mW was obtained in the 840.39 nm transition of Ag II by electron beam excitation. This electron beam excited metal vapor ion laser is capable of operating using metals with high vaporization temperatures and is of interest for generation of CW coherent radiation in the 220-260 nm spectral region

    Prominent and persistent loss of past awareness in amnesia: delusion, impaired consciousness or coping strategy?

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    Profound loss of awareness for the past in amnesia has implications for our understanding of memory and belief systems, and how they may become disrupted in neurological conditions. We report the case of CW, a professional musician who became severely amnesic in 1985 following herpes simplex viral encephalitis (HSVE) at the age of 46 years. For many years CW stated several times a day that he had just woken up. He frequently wrote this in his diary too. When shown examples of his diary entries or videos of himself playing or conducting music, he recognised both his handwriting and himself on the video screen but stated vehemently that he “was not conscious then”. In a previous paper (Wilson, Baddeley, & Kapur 1995), it was suggested that this lack of awareness for the past was a delusion, defined as a strongly held belief in the face of contradictory evidence (rather than implying any kind of psychiatric disorder per se). As a contribution to the academic debate regarding theories of “self”, in the present paper we will review this explanation of CW's state as it had been in those early years, and we will also consider two other possibilities - namely, that CW had suffered from a loss of “autobiographical self” or “extended consciousness” (see Damasio, 2000, pp. 198-199), and that his verbal reports simply reflected a form of coping strategy to help him deal with the limited evidence he had available in “declarative” memory

    1-W cw Zn ion laser

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    We have obtained 1.2W of cw laser power on the 4911.6- and 4924.0-Å transitions of Zn II by exciting a He-Zn gas mixture with a dc glow discharge electron beam. In addition, 0.25-W output power has been obtained on the 6149.9-Å line of Hg+ using the same excitation scheme. The combination of electron beam ionization of rare gas atoms and subsequent charge transfer excitation to metal ion levels is shown to have the potential of significantly increasing the efficiency of ion lasers. cw multiwatt visible and ultraviolet ion lasers operating at efficiencies > 10-3 appear feasible using this excitation scheme
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