2,513 research outputs found

    Apollo extension system lsv studies. mission command and control

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    Steering system and control circuit for Lunar Surface Vehicle /LSV/ - Apollo projec

    Organizational factors influencing implementation of evidence-based practices for integrated treatment in behavioral health agencies.

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    Objective. In recent years, New Mexico has prioritized integrated treatment for cooccurring mental health and substance use disorders within its public behavioral health system. This report describes factors likely to be important when implementing evidence-based practices (EBPs) in community agencies. Methods. Our mixed-method research design consisted of observations, semistructured interviews, and surveys undertaken with employees at 14 agencies at baseline and after 18 months. We developed four-agency typologies based on iterative coding and analysis of observations and interviews. We then examined survey data from employees at the four exemplar agencies to validate qualitative findings. Results. Financial resources and strong leadership impacted agency capacity to train providers and implement EBPs. Quantitative analysis of service provider survey responses from these agencies (N = 38) supported qualitative findings and demonstrated significant mean score differences in leadership, organizational climate, and attitudes toward EBPs in anticipated directions. Conclusion. The availability of strong leadership and financial resources were key components to initial implementation success in this study of community agencies in New Mexico. Reliance only on external funding poses risks for sustainment when demoralizing work climates precipitate employee turnover. Strong agency leadership does not always compensate for deficient financial resources in vulnerable communities

    Scattering from Atoms and Molecules in the Free State by Electrons with Energies Below 10 keV.

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    A survey of electron scattering from a free atom or molecule by incident electrons with energies below 10 keV is best accomplished by viewing a Bethe surface. This surface presents a global picture of nearly all observable phenomena obtained from the investigation of the angular and energy dependence of scattered electrons. An absolute, comprehensive and accurate surface for molecular nitrogen, obtained from electron energy loss spectroscopic experiments, illustrates the major points to be made. Two general uses of such scattering information are: (i) the inference of various aspects of the electronic structure of the target through the observation of spectral features and (ii) the measurement of absolute values of the various cross sections, elastic and inelastic. The lack of availability of cross section data is currently a stumbling block to understanding radiation physics in the gas and condensed phases. The use of gas phase cross sections for modeling condensed phase phenomena has certain limitations imposed by the existence of strong collective excitation peaks in the valence or band spectra of solids. On the other hand the absolute gas phase cross sections for inner shell excitation may be of use in modeling solid state radiation processes

    Theory of the Effect of Temperature on the Electron Diffraction Patterns of Diatomic Molecules

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    The effect of temperature on the electron diffraction pattern of a diatomic molecule is considered from the standpoint of the simple kinematic scattering theory utilizing a quartic vibrational potential. The potential is obtained by an expansion of ħ2J( J+1)/2μr2+D exp[-2a(r-re)]-2D exp[-a(r-re)] about its minimum value r0. The second-order wavefunction for the nth vibrational and 7th rotational state of the system has been obtained, and expressions for the electron diffraction quantities rg, le 2, and M (s) have been computed. General results for the quantity M (s) utilizing the approximate eigenfunctions of the complete Morse potential and incorporating an approximate treatment of the effect of centrifugal stretching are also presented. Explicit expressions for M (s) for the first three vibrational states as derived by this treatment are given. Appropriate sums over all the vibrational and rotational states have been carried out to obtain the temperature dependence for the above quantities. Estimates of the effect of temperature on the parameters rg and Ie 2 at 300° and 1500°K for representative diatomic molecules are given

    A Comparative Study of the Valence Electronic Excitations of N_2 by Inelastic X-ray and Electron Scattering

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    Bound state, valence electronic excitation spectra of N_2 are probed by nonresonant inelastic x-ray and electron scattering. Within the usual theoretical treatments, dynamical structure factors derived from the two probes should be identical. However, we find strong disagreements outside the dipole scattering limit, even at high probe energies. This suggests an unexpectedly important contribution from intra-molecular multiple scattering of the probe electron from core electrons or the nucleus. These effects should grow progressively stronger as the atomic number of the target species increases.Comment: Submitted to Physical Review Letters April 27, 2010. 12 pages including 2 figure pages

    Apollo logistic support systems nolab studies- mission command and control interim report

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    Vehicle stability, steering, and control system characteristics for Apollo logistic support of lunar mobile laboratory /Molab
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