15,712 research outputs found

    Neurophysiological and Behavioral Studies of Chimpanzees Semiannual Report, 1 Jul. - 31 Dec. 1966

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    Computer program for control of chimpanzee discrimination test analysis and electroencephalographic response dat

    Monitoring brain function and performance in the primate under prolonged weightlessness Final report, 15 Aug. 1963 - 14 Aug. 1964

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    Summary of program for monitoring brain function and performance in primate under prolonged weightlessnes

    Neurophysiological and behavioral studies of chimpanzees Semiannual report, Jan. 1 - Jun. 30, 1966

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    Techniques and bioinstrumentation for behavioral and neurophysiological studies of chimpanzees and Apollo application

    Summer Institute in Space Biology Final report, Apr. 1 - Nov. 30, 1968

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    Space biology laboratory on effects of aerospace environments on physiological and psychological performance of astronaut

    Underlying symmetries of realistic interactions and the nuclear many-body problem

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    The present study brings forward important information, within the framework of spectral distribution theory, about the types of forces that dominate three realistic interactions, CD-Bonn, CDBonn+ 3terms and GXPF1, in nuclei and their ability to account for many-particle effects such as the formation of correlated nucleon pairs and enhanced quadrupole collective modes. Like-particle and proton-neutron isovector pairing correlations are described microscopically by a model interaction with Sp(4) dynamical symmetry, which is extended to include an additional quadrupole-quadrupole interaction. The analysis of the results for the 1f7/2 level shows that both CD-Bonn+3terms and GXPF1 exhibit a well-developed pairing character compared to CD-Bonn, while the latter appears to build up more (less) rotational isovector T = 1 (isoscalar T = 0) collective features. Furthermore, the three realistic interactions are in general found to correlate strongly with the pairing+quadrupole model interaction, especially for the highest possible isospin group of states where the model interaction can be used to provide a reasonable description of the corresponding energy spectra.Comment: 12 pages, 4 figure

    Computer analysis of EEG data for a normative library Final report, Sep. 24, 1963 - Jan. 31, 1966

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    Computer analysis of electroencephalographic data for development of normative criteri

    An interpretation of the geothermal history of the Otway Basin based on vitrinite reflectance and fission track analyses

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    The study of the maturation of organic matter is of interest to the Petroleum Exploration Industry. Liquid hydrocarbons are generated over a restricted maturation interval, and are related to a time, temperature function. Techniques now available for determining the location of the hydro-carbon -generating interval in a sedimentary basin; ; a r e I fission track a time-consuming quasi-academic technique, and vitrinite reflectance - a fully commercial technique, that takes a fraction of the time

    Duality Between the Weak and Strong Interaction Limits for Randomly Interacting Fermions

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    We establish the existence of a duality transformation for generic models of interacting fermions with two-body interactions. The eigenstates at weak and strong interaction U possess similar statistical properties when expressed in the U=0 and U=infinity eigenstates bases respectively. This implies the existence of a duality point U_d where the eigenstates have the same spreading in both bases. U_d is surrounded by an interval of finite width which is characterized by a non Lorentzian spreading of the strength function in both bases. Scaling arguments predict the survival of this intermediate regime as the number of particles is increased.Comment: RevTex4, 4 pages, 4 figures. Accepted for publication at Phys. Rev. Let
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