Rural First Responders A Comprehensive Approach to Understanding Their Experiences

First responders are chronically exposed to traumatic events throughout their career. First responders in rural communities have unique experiences that make them more susceptible to poor mental health outcomes. Some of these experiences include strong ties to the community, the chance of responding to someone known personally to them, limited resources, and limited training. Since rural communities make up a large part of the U.S., and first responders in these communities compromise about 70% of the first responders population, it is important for mental health providers to understand and provide services for these individuals. Utilizing research already conducted with paid first responders, the Banded Dissertation focuses on the experiences of the rural first responder. Three products compromise the Banded Dissertation. The first is a conceptual paper that explores the prevalence of mental health outcomes of first responders’ exposure to traumatic events with a focus on volunteer fire fighters and EMT’s in rural communities. The article provides innovative ways for mental health professionals to utilize rural cultural values and norms to address barriers this population has to receiving services. The second is a research study that explored the current state of first responders in rural communities amid a global pandemic. The third product is a conference presentation that describes a traumavinformed, culturally sensitive approach to working with rural volunteer first responders after a traumatic experience

Adiabatic Cooling of Atoms by an Intense Standing Wave

Lithium atoms channeled in the nodes of an intense standing-wave radiation field are cooled to near the recoil limit by adibatically reducing the radiation intensity. The final momentum distribution has a narrow component with a root-mean-squared momentum of 2ħk in one dimension, where ħk is the momentum of a radiation-field photon. The data are compared with the results of a Monte Carlo simulation using a two-level atom model. This process may be useful for cooling and increasing the phase-space density of atoms confined in a magnetic trap

Observation of Velocity-Tuned Multiphoton Doppleron Resonances in Laser-Cooled Atoms

An atomic beam of Li was transversely cooled using an intense standing-wave radiation field. A dramatic change in the transverse velocity distribution was observed. Structure in the resulting velocity distribution was found to be due to velocity-tuned multiphoton Doppleron resonances. The force due to seven-photon resonances is clearly resolved in the data. The data are in good agreement with theoretical predictions

Observation of Velocity-Tuned Multiphoton Doppleron Resonances in Laser-Cooled Atoms

An atomic beam of Li was transversely cooled using an intense standing-wave radiation field. A dramatic change in the transverse velocity distribution was observed. Structure in the resulting velocity distribution was found to be due to velocity-tuned multiphoton Doppleron resonances. The force due to seven-photon resonances is clearly resolved in the data. The data are in good agreement with theoretical predictions

Multi frequency evaporative cooling to BEC in a high magnetic field

We demonstrate a way to circumvent the interruption of evaporative cooling observed at high bias field for $^{87}$Rb atoms trapped in the (F=2, m=+2) ground state. Our scheme uses a 3-frequencies-RF-knife achieved by mixing two RF frequencies. This compensates part of the non linearity of the Zeeman effect, allowing us to achieve BEC where standard 1-frequency-RF-knife evaporation method did not work. We are able to get efficient evaporative cooling, provided that the residual detuning between the transition and the RF frequencies in our scheme is smaller than the power broadening of the RF transitions at the end of the evaporation ramp.Comment: 12 pages, 2 figure

Spectral method for the time-dependent Gross-Pitaevskii equation with a harmonic trap

We study the numerical resolution of the time-dependent Gross-Pitaevskii equation, a non-linear Schroedinger equation used to simulate the dynamics of Bose-Einstein condensates. Considering condensates trapped in harmonic potentials, we present an efficient algorithm by making use of a spectral Galerkin method, using a basis set of harmonic oscillator functions, and the Gauss-Hermite quadrature. We apply this algorithm to the simulation of condensate breathing and scissors modes.Comment: 23 pages, 5 figure

Personal Papers (MS 80-0002)

Invoice for items sold to D. W. Kempner by H. J. Tollett Cadillac Co., including 61 Cadillac Coupe, hydraulic drive, tax, etc. worth $1811.78. Written paid in full July 31st, 1941