4,979 research outputs found

    Effects on muscles in the body through listening to music and emotional responses

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    This work arose form my research to find people’s personal frequencies and to improve the effectiveness of therapy with music by tuning prominent notes in the music to match these frequencies. These are early results and must be considered tentative, until confirmed with more subjects and under better controlled conditions. In my work in Attune to Health, applying music in a high tech way for therapy, I originally used the methods of Applied Kinesiology to assess relative muscle tone, in response to music to assess whether the music seemed to be suitable therapeutically. Then almost accidentally, and to my surprise I found that, muscle tone was very strong at certain narrowly defined frequencies, and conversely very weak at slightly off these frequencies. In fact the frequency had to be correct to within 0.1% which corresponds to about 1/60 th of a semitone. This tiny difference of pitch cannot be heard – it would need to be about 10 times that to be easily discernable under ordinary conditions – and yet certain muscles in the body have this large response. I then found there is not just one frequency for a person but at least 11 and that these are spaced in a regular geometric pattern which is not related in any way to (at least Western) musical intervals. Some very different pieces of music appear to show the same frequencies for a person, however, when correctly “tuned in” the relative strength of other muscles, e.g. individual fingers, appear to vary with the emotional affect of the music. There is also a time dependent effect. If one applies a slightly “wrong” frequency, 1/60th of a semitone too low, for say 2 minutes, the relevant muscle shows weak and it remains weak for perhaps 20 seconds after the “correct” frequency is applied. However if one instead of applying the ‘correct’ frequency, one applies one 1/60th of a semitone too high, the muscle goes strong within about 2 seconds; Naturally one must not leave this “wrong frequency” on for more than 10 seconds or so because it would cause the muscles to go weak

    In the absence of hard data, is soft data better than no data at all?

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    Potential energy curves for the interaction of Ag(5s) and Ag(5p) with noble gas atoms

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    We investigate the interaction of ground and excited states of a silver atom with noble gases (NG), including helium. Born-Oppenheimer potential energy curves are calculated with quantum chemistry methods and spin-orbit effects in the excited states are included by assuming a spin-orbit splitting independent of the internuclear distance. We compare our results with experimentally available spectroscopic data, as well as with previous calculations. Because of strong spin-orbit interactions, excited Ag-NG potential energy curves cannot be fitted to Morse-like potentials. We find that the labeling of the observed vibrational levels has to be shifted by one unit

    Theoretical Study of Pressure Broadening of Lithium Resonance Lines by Helium Atoms

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    Quantum mechanical calculations are performed of the emission and absorption profiles of the lithium 2s-2p resonance line under the influence of a helium perturbing gas. We use carefully constructed potential energy surfaces and transition dipole moments to compute the emission and absorption coefficients at temperatures from 200 to 3000 K at wavelengths between 500 nm and 1000 nm. Contributions from quasi-bound states are included. The resulting red and blue wing profiles are compared with previous theoretical calculations and with an experiment, carried out at a temperature of 670 K.Comment: 10 figure

    Universal Factorization of 3nj(j>2)3n-j (j > 2) Symbols of the First and Second Kinds for SU(2) Group and Their Direct and Exact Calculation and Tabulation

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    We show that general 3nj(n>2)3n-j (n>2) symbols of the first kind and the second kind for the group SU(2) can be reformulated in terms of binomial coefficients. The proof is based on the graphical technique established by Yutsis, et al. and through a definition of a reduced 6j6-j symbol. The resulting 3nj3n-j symbols thereby take a combinatorial form which is simply the product of two factors. The one is an integer or polynomial which is the single sum over the products of reduced 6j6-j symbols. They are in the form of summing over the products of binomial coefficients. The other is a multiplication of all the triangle relations appearing in the symbols, which can also be rewritten using binomial coefficients. The new formulation indicates that the intrinsic structure for the general recoupling coefficients is much nicer and simpler, which might serves as a bridge for the study with other fields. Along with our newly developed algorithms, this also provides a basis for a direct, exact and efficient calculation or tabulation of all the 3nj3n-j symbols of the SU(2) group for all range of quantum angular momentum arguments. As an illustration, we present teh results for the 12j12-j symbols of the first kind.Comment: Add tables and reference

    Physics of planetary atmospheres ii- the fluorescence of solar ionizing radiation

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    Calculations of midday dayglow intensities arising from fluorescence of solar ionizing radiatio

    Sympathetic cooling of polyatomic molecules with S-state atoms in a magnetic trap

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    We present a rigorous theoretical study of low-temperature collisions of polyatomic molecular radicals with ^1S_0 atoms in the presence of an external magnetic field. Accurate quantum scattering calculations based on ab initio and scaled interaction potentials show that collision-induced spin relaxation of the prototypical organic molecule CH_2(X^3B_1) (methylene) and nine other triatomic radicals in cold 3He gas occurs at a slow rate, demonstrating that cryogenic buffer-gas cooling and magnetic trapping of these molecules is feasible with current technology. Our calculations further suggest that it may be possible to create ultracold gases of polyatomic molecules by sympathetic cooling with alkaline-earth atoms in a magnetic trap.Comment: 5 pages, 3 figures, 1 tabl

    The Atmosphere Explorer and the shuttle glow

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    Recent analyses of the Atmosphere Explorer data are discussed in which it is demonstrated that the satellite glows have two components, one at high altitudes which is consistent with excitation in single collisions of atmospheric oxygen atoms with the vehicle surface and the other at low altitudes which is consistent with double collisions of nitrogen molecules. Contrary to an earlier suggestion, the low-altitude data are not consistent with collisions of oxygen molecules. The separation of the two components strengthens the conclusion that the high-altitude glow arises from vibrationally excited OH molecules produced by a formation mechanism that is different from that leading to the normal atmospheric OH airglow. The spectrum is consistent with association of oxygen and hydrogen atoms at sites on the surface into the vibrational levels of OH. The low-altitude glow is consistent with the green mechanism but there are difficulties with it. The shuttle glows are different and have the spectral appearance of emission from NO2. The characteristics of the shuttle glows and the satellite glows will be contrasted and a tentative resolution of the differences in the Atmosphere Explorer and shuttle glows will be offered

    Theoretical Study of Sodium and Potassium Resonance Lines Pressure Broadened by Helium Atoms

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    We perform fully quantum mechanical calculations in the binary approximation of the emission and absorption profiles of the sodium 3s3s-3p3p and potassium 4s4s-4p4p resonance lines under the influence of a helium perturbing gas. We use carefully constructed potential energy surfaces and transition dipole moments to compute the emission and absorption coefficients at temperatures from 158 to 3000 K. Contributions from quasi-bound states are included. The resulting red and blue wing profiles agree well with previous theoretical calculations and with experimental measurements.Comment: 16 figure
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