Coevolution of metallicity and star formation in galaxies to z=3.7: I. A fundamental plane

With the aim of understanding the coevolution of star formation rate (SFR), stellar mass (M*), and oxygen abundance (O/H) in galaxies up to redshift z=3.7, we have compiled the largest available dataset for studying Metallicity Evolution and Galaxy Assembly (MEGA); it comprises roughly 1000 galaxies with a common O/H calibration and spans almost two orders of magnitude in metallicity, a factor of 10^6 in SFR, and a factor of 10^5 in stellar mass. From a Principal Component Analysis, we find that the 3-dimensional parameter space reduces to a Fundamental Plane of Metallicity (FPZ) given by 12+log(O/H) = -0.14 log (SFR) + 0.37 log (M*) + 4.82. The mean O/H FPZ residuals are small (0.16 dex) and consistent with trends found in smaller galaxy samples with more limited ranges in M*, SFR, and O/H. Importantly, the FPZ is found to be redshift-invariant within the uncertainties. In a companion paper, these results are interpreted with an updated version of the model presented by Dayal et al. (2013).Comment: 19 pages, 10 figures, 4 tables, accepted for publication in MNRA

Quantitative morphology of galaxy clusters at X-ray wavelengths

We apply quantitative morphology techniques to X-ray imaging of clusters of galaxies to determine correlation between calculated parameters (CAS, Gini and M20) and features such as bow shocks, cold fronts, gas sloshing, Kelvin-Helmholtz instabilities (KHI), X-ray cavities and relaxed/disturbed clusters. In order to do this we create a novel sample of 51 cluster images from archival data such as ℎ and − based on selection criteria spanning a redshift 0.01 1 × 1044 ergs s−1. We process the original images, and remove foreground sources and CCD gaps, and apply adaptive kernel smoothing on the central 3 Mpc of the clusters which is determined using an asymmetry technique to weight the luminosity centroid of the image. For each image we calculate the concentration of light C, the asymmetry index A, the clumpiness parameter S, the Gini coefficient G and the M20 parameter. We attempt to correlate these results with the physical features present and demonstrate that the presence of bow shocks is correlated with higher M20 and lower C and S, cavities correlate with low G and S, cold fronts show low S and G and higher M20, low S and high M20 correlate with gas sloshing and clusters that exhibit KHI have high S values

Effectiveness of a School-based Asthma Education Program for 8-10-Year-Old Children

Background: Asthma is the most common chronic condition to affect children in the United States Five million children throughout the United States and approximately 112, 000 children in Kentucky are living with the diagnosis of asthma (CDC, 2017; CHFS, 2017). Based on current rates 1 out of 10 elementary school-age students will likely have asthma (CDC, 2019). Educating elementary-age students about asthma and symptoms of an asthma exacerbation is very important and could save a life. Methods: A school-based asthma education program targeting children in third and fourth grades was implemented at two elementary schools in Central Kentucky. The asthma education was conducted during student’s physical education/health classes. Program effectiveness was measured with the use of the Asthma Knowledge Test for 8-10-year-olds pre-intervention and post-intervention. Results: A total of 71 students participated in the program. A paired t-test was used to compare pre-test scores on the Asthma Knowledge Test for 8-10-year-olds with the post-test scores. There was a statistically significant difference in pre-test/post-test scores (p\u3c 0.001). Discussion: Asthma affects many school-ae children. It is important for classmates to have a basic understanding of asthma exacerbation symptoms to help ensure a safe school-environment for children with asthma. The school-based asthma education program was a useful tool to increase overall asthma knowledge in children ages 8-10-years-old. Conclusion: The school-based asthma education program was effective in increasing overall asthma knowledge among 8-10-year-old children. This study can be used to help schools develop their own asthma education programs to provide information for students to quickly recognize symptoms of an acute asthma exacerbation in a peer and get them the help they need as soon as possible

Movement Marketing of Nonprofit Organizations: Creating Consumer Advocates

The title of my thesis is called Movement Marketing for Nonprofit Organizations: Creating Consumer Advocates. The purpose of the study was to determine how nonprofit organizations use marketing to further their cause. The study involved interviewing employees of nonprofit organizations using a standard questionnaire to gather information about how the organization utilizes marketing internally and externally. After analyzing the information gathered from the personal interviews, several techniques were used by all of the organizations. The organizations use movement marketing by first starting to spread the passion for their cause within the organization through employees, volunteers, and board members. These advocates for the nonprofit then go out into the community and recruit further support for the nonprofit organization and its cause

From Performer to Petrushka: A Decade of Alexandra Exter\u27s Work in Theater and Film

The subject of my thesis is Russian artist Alexandra Exter’s work in the performing arts, with a focus on her theatrical set and costume designs in the Kamerny Theater, her creations for Iakov Protazanov’s 1924 science fiction film, Aelita, and finally her exquisitely fabricated set of approximately forty marionettes. Within these colorful wooden figures are reconciled conflicting notions of stasis and dynamism, sculpture and performer, human and object. Drawing upon Victor Shklovskiĭ’s formalist definition of “enstrangement,” I examine her introduction of the object in place of the human performer as a means of exposing the creative process, forcing the viewer to actively engage with the production. Thus, her manipulation and eventual replacement of the human performer not only exemplifies the interconnectivity and mutability of Russian avant-garde art, but impels the viewer to reconsider the familiar in terms of the strange, ultimately calling attention to the humanity of the dehumanized performer

From Performer to Petrushka: A Decade of Alexandra Exter\u27s Work in Theater and Film

The subject of my thesis is Russian artist Alexandra Exter’s work in the performing arts, with a focus on her theatrical set and costume designs in the Kamerny Theater, her creations for Iakov Protazanov’s 1924 science fiction film, Aelita, and finally her exquisitely fabricated set of approximately forty marionettes. Within these colorful wooden figures are reconciled conflicting notions of stasis and dynamism, sculpture and performer, human and object. Drawing upon Victor Shklovskiĭ’s formalist definition of “enstrangement,” I examine her introduction of the object in place of the human performer as a means of exposing the creative process, forcing the viewer to actively engage with the production. Thus, her manipulation and eventual replacement of the human performer not only exemplifies the interconnectivity and mutability of Russian avant-garde art, but impels the viewer to reconsider the familiar in terms of the strange, ultimately calling attention to the humanity of the dehumanized performer