Letter from J.R. Fewell to Sam H. Smith; April 25, 1931.

From the Ellard-Murphree-Pilgreen-Smith Family Papers Collection. Letter from J.R. Fewell to Sam H. Smith; April 25, 1931.https://athenacommons.muw.edu/smithpapers/1012/thumbnail.jp

Process for the preparation of polycarboranylphosphazenes

A process for the preparation of polycarboranylphosphazenes is described. Polydihalophosphazenes are allowed to react at ambient temperatures for at least one hour with a lithium carborane in a suitable inert solvent. The remaining chlorine substituents of the carboranyl polyphosphazene are then replaced with aryloxy or alkoxy groups to enhance moisture resistance. The polymers give a high char yield when exposed to extreme heat and flame and can be used as insulation

Carboranylcyclotriphosphazenes and their polymers

Carboranyl-substituted polyphosphazenes are prepared by heat polymerizing a carboranyl halocyclophosphazene at 250 C for about 120 hours in the absence of oxygen and moisture. The cyclophosphazene is obtained by allowing a lithium carborane, e.g., the reaction product of methyl-o-carborane with n-butyllithium in ethyl ether, to react with e.g., hexachlorocyclotriphosphazene at ambient temperatures and in anhydrous conditions. For greater stability in the presence of moisture, the chlorine substituents of the polymer are then replaced by aryloxy or alkoxy groups, such as CF3CH2O. The new substantially inorganic polymers are thermally stable materials which produce a high char yield when exposed to extreme temperatures, and can thus serve to insulate less heat and fire resistant substances

Conference on the Development of Fire-Resistant Aircraft Passenger Seats

Papers are presented dealing with the development of aircraft seats with the minimum fire risk. Criteria examined include: flame spread, heat release, and smoke and/or toxic fumes. Materials and performance specifications of all seat material options are provided

Ramsey interferometry with oppositely detuned fields

We report a narrowing of the interference pattern obtained in an atomic Ramsey interferometer if the two separated fields have different frequency and their phase difference is controlled. The width of the Ramsey fringes depends inversely on the free flight time of ground state atoms before entering the first field region in addition to the time between the fields. The effect is stable also for atomic wavepackets with initial position and momentum distributions and for realistic mode functions.Comment: 6 pages, 6 figure

Twenty Years in the Trenches: A Fight for Equitable and Adequate School Funding in Ohio

Abstract This single case study examined the perceptions of William L. “Bill” Phillis, the Executive Director of the Ohio Coalition for Equity and Adequacy of School Funding, concerning an unconstitutional funding model, subsequent sociopolitical barriers, and their impact on students and school districts from underprivileged socioeconomic background within the context of the DeRolph v. State of Ohio legal battle. This research adds to the extant literature on the educational implications of the property tax and foundation model of school funding. As well, we discuss William’s insights regarding the politics, nature, and development of the current state of public school financing in Ohio. There were four emergent themes: sociopolitical sentiment and rhetoric, the plight of poorer districts, seeing a shared vision, and constitutional language and responsibility. Key findings from the study provide awareness to foster civic responsibility to effect change for inequitable and inadequate funding formulae, to encourage politicians to abandon political agendas over constitutional will, and for educators and students alike to continually advocate for a reformed system of school funding. These findings are especially relevant among under-resourced districts such as those in Appalachian Ohio. Key words: advocacy, educational leadership, equity, foundation model, school funding, single-case stud

Synthesis and thermal stability of carborane containing phosphazenes

Carborane substituted polyphosphazenes were prepared by the thermal polymerization of phenyl-carboranyl penta chlorocyclotriphosphazene. Successive isothermal vacuum pyrolyses were conducted on the polymer and examined for structural changes by infrared spectroscopy. The degradation products were ascertained by gas chromatography-mass spectrometric analysis. It was found that the presence of the carborane group improves the thermal stability of the polymer by retarding the ring chain equilibrium processes of decomposition

Three level atom optics via the tunneling interaction

Three level atom optics (TLAO) is introduced as a simple, efficient and robust method to coherently manipulate and transport neutral atoms. The tunneling interaction among three trapped states allows to realize the spatial analog of the stimulated Raman adiabatic passage (STIRAP), coherent population trapping (CPT), and electromagnetically induced transparency (EIT) techniques. We investigate a particular implementation in optical microtrap arrays and show that under realistic parameters the coherent manipulation and transfer of neutral atoms among dipole traps could be realized in the millisecond range.Comment: 5 pages, 6 figure

Democratic Teacher Preparation and Praxis: Creating Active, Reflective Educators (CARE)

This qualitative study investigates the ability of teachers that have completed their clinical experience—i.e., teacher preparation—in a school grounded in Deweyan theory to maintain a democratic practice. As such, the study focused on educators that were graduates of a school-university partnership program, known as CARE—Creating Active, Reflective Educators. Data were collected to address the following research question: “To what extent can former CARE students practice democratic education in their current public-school teaching environment?” Interviews conducted with current school teachers and leaders that were former CARE program students. Responses were audio-recorded and transcribed, then coded and organized into thematic units to report findings