60 research outputs found
Microscopic calculation of the spin-dependent neutron scattering lengths on 3He
We report on the spin.dependent neutron scattering length on 3He from a
microscopic calculation of p-3H, n-3He, and d-2H scattering employing the
Argonne v18 nucleon-nucleon potential with and without additional three-nucleon
force. The results and that of a comprehensive R-matrix analysis are compared
to a recent measurement. The overall agreement for the scattering lengths is
quite good. The imaginary parts of the scattering lengths are very sensitive to
the inclusion of three-nucleon forces, whereas the real parts are almost
insensitive.Comment: 9 pages, 1 figur
Avaliação de resíduo de antibiótico em amostras de leite de vacas após a terapia de vacas secas
More Than Speed? an Empirical Study of Touchscreens and Body Awareness on an Object Manipulation Task
Touchscreen interfaces do more than allow users to execute speedy interactions. Three interfaces (touchscreen, mouse-drag, on-screen button) were used in the service of performing an object manipulation task. Results showed that planning time was shortest with touch screens, that touchscreens allowed high action knowledge users to perform the task more efficiently, and that only with touchscreens was the ability to rotate the object the same across all axes of rotation. The concept of closeness is introduced to explain the potential advantages of touchscreen interfaces
ULTRASONIC SPECTROSCOPY IN ROCKS: AN EXPERIMENTAL STUDY OF HIGHLY POROUS SYNTHETIC SANDSTONES1
The wheat ribosomal DNA spacer region: Its structure and variation in populations and among species
Child Care Responsibility in Gay Male-Parented Families: Predictive and Correlative Factors
Cytogenetics and immature embryo culture at Embrapa Trigo breeding program: transfer of disease resistance from related species by artificial resynthesis of hexaploid wheat (Triticum aestivum L. em. Thell)
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