Henri Temianka Correspondence; (sitterly)

https://digitalcommons.chapman.edu/temianka_correspondence/2848/thumbnail.jp

Electromagnetic Characterization of Inhomogeneous Media

Developed two permittivity profile extraction algorithms for inhomogeneous materials. These two algorithms were created using discrete and continuous approaches. The discrete method used a piece-wise constant permittivity assumption that allowed the use of homogeneous wave equations. Using laboratory data and a theoretical formulation, the permittivity of each piece-wise constant layer within the material was extracted using a root search algorithm. The continuous approach solved the problem using inhomogeneous wave equations. These equations were used to extract a linear permittivity profile using laboratory data and a root search

Grand Movement: Influence of Fitness Sessions on Static and Dynamic Balance in Older Adults

It is recommended that adults 65 years and older engage in activities to improve balance such as standing on one foot at least 3 days a week (CDC, 2022). Flexibility and balance are vital components of fitness for older adults in order to perform activities of daily living (ADLs) and aid in reducing risk of falling which is prevalent in senior living facilities. Fear of falling is a belief that an individual cannot prevent themselves from falling or that they have a nagging worry that they will fall (Varshneya & Sonawane, 2020). PURPOSE: To evaluate static and dynamic balance, static flexibility and reaction time in two older adult populations (fitness session group vs non-fitness session group). METHODS: Participants (n=31) were recruited within a senior living facility and completed a physical activity (PA) questionnaire to be placed into appropriate groups. Fitness session group participants were encouraged to maintain activity levels as identified by the PA questionnaire. Pre and post measurements were assessed 6-8 weeks apart. Assessments included Back Saver Sit and Reach (R/L), Standard Romberg (eyes open and closed), Standing Functional Reach, 5 Time Sit to Stand, and Timed Up and Go. RESULTS: In the Standing Functional Reach significant differences were found in the Session x Group Interaction (F(1,28)=4.455, p=0.044) (np2=0.137), as well as the pre to post assessment comparisons (F(1,28)=6.760, p=0.015) (np2=0.194). Significant results were also found on the 5 Time Sit to Stand in the pre to posttest analysis (F(1,23)=7.813, p=0.010)(np2=0.254), as well as the between groups analysis (F(1,3)=8.906, p=0.007)(np2=0.279). Significant differences were also found in the Group x Session interaction for the Timed Up and Go (F(1,26)=6.905, p=0.014)(np2=0.210). CONCLUSION: The Fitness Session Group improved measurements on all 7 assessments (except Romberg with eyes open), and exhibited higher averages than the Non-Fitness Session Group. There is evident benefit to assisted and independent living facilities providing fitness programming and encouraging physical activity within the older adult population. These resources help reduce the risk of injury and enhance quality of life

The age of the Galactic thin disk from Th/Eu nucleocosmochronology I. Determination of [Th/Eu] abundance ratios

The purpose of this work is to resume investigation of Galactic thin disk dating using nucleocosmochronology with Th/Eu stellar abundance ratios, a theme absent from the literature since 1990. A stellar sample of 20 disk dwarfs/subgiants of F5 to G8 spectral types with -0.8 <= [Fe/H] <= +0.3 was selected. In stars with such spectral types and luminosity classes, spectral synthesis techniques must be employed if we wish to achieve acceptably accurate results. A homogeneous, self-consistent set of atmospheric parameters was determined. Effective temperatures were determined from photometric calibrations and H-alpha profile fitting; surface gravities were obtained from Teff, stellar masses and luminosities; microturbulence velocities and metallicities were obtained from detailed, differential spectroscopic analysis, relative to the Sun, using equivalent widths of Fe I and Fe II lines. Chemical abundances of the elements that contaminate the Th and Eu spectral regions (Ti, V, Cr, Mn, Co, Ni, Ce, Nd, and Sm) were determined through spectroscopic analysis. Abundance uncertainties were thoroughly scrutinised, their average value - (0.10 +/- 0.02) dex - being found to be satisfactorily low. Eu and Th abundances were determined by spectral synthesis of one Eu II line (4129.72 A) and one Th II line (4019.13 A), taking into account the detailed hyperfine structures of contaminating Co lines, as well as the hyperfine structure and isotope shift of the Eu line. Comparison of our abundances with literature data shows that our results exhibit a similar behaviour, but a considerably lower scatter (36% lower for Eu, and 61% lower for Th). The [Th/Eu] abundance ratios thus obtained were used, in the second paper of this series, to determine the age of the Galactic disk.Comment: 27 pages, 22 Postscript figures, accepted for publication in Astronomy & Astrophysics, final versio

PEP Talks: Partnerships for Educational Planning Talks

The PEP TALKS: Partnership for Education Planning Talks was an addition to the programs already offered at Butler County Children’s Center (BCCC). The goals of this program were to increase ease with transition for families from Early Intervention to Preschool Special Education services, to increase the advocacy material parent educators provide to parents of children birth to three transitioning out of early head start programs, and to increase parent understanding, satisfaction, and participation with the IEP process. In order to accomplish these goals, educational materials were developed and presented to parents in individual and group settings, and current parent educators at the Butler County Children’s Center (BCCC) were trained on the implementation of educational materials to ensure sustained use of resources

PHYSIOLOGICAL FACTORS AFFECTING THE ONSET OF SUSCEPTIBILITY OF APPLE FRUIT TO ROTTING BY BOTRYOSPHAERIA RIBIS G.AND D., GLOMERELLA CINGULATA (STONEM) S. AND VS., PHYSALOSPORA OBTUSA (SCHW.) COOKE, AND NEOFABREA MALICORTICIS (CORDLEY) JACKSON

Abstract not availabl

THE ASTROPHYSICAL IMPORTANCE OF RARE-EARTH SPECTRA

Author Institution: Spectroscopy Section, National Bureau of Standard