Junior Recital: Melissa Harris, horn

Kennesaw State University School of Music presents Junior Recital: Melissa Harris, horn.https://digitalcommons.kennesaw.edu/musicprograms/1860/thumbnail.jp

Hunting for Substructure in the Milky Way

Studies of the Milky Way including how it formed and evolved through time are the key to understanding how other galaxies behave. The Milky Way is the most convenient galaxy to study, because the close proximity of stars means astronomers can collect precise spectral and dynamical data from individual stars. By combining the chemical and dynamical aspects, it is possible to pinpoint stars which have been accreted from satellite galaxies, in comparison to stars which formed in situ. This constrains the merger history of the Milky Way, which is an important factor in understanding how it has evolved since its formation. In this thesis I have performed a chemodynamical analysis of two sets of data; Fulbright and Nissen & Schuster. I analysed abundance ratios of [Mg/Fe] and [Ni/Fe] relative to [Fe/H] to indicate which stars could be accreted. I then calculated the specific angular momentum, which is the z-component of angular momentum, normalised to a circular orbit: Jz/Jc. I also calculated the specific energy, which is the z-component of the energy, also normalised to a circular orbit: Ez/Ec. From these calculations I analysed the orbits of the stars to predict which stars could be accreted. Subsequently, I combined the two methods into the chemodynamical analysis to identify with confidence how many stars from each sample are accreted. From the Fulbright sample, I successfully identified 18 out of 167 stars which were accreted. From the Nissen & Schuster sample, I successfully identified 29 out of 100 stars which were accreted. These accreted stars are from mergers of low mass dwarf galaxies with the Milky Way, and provide evidence of substructure in the Milky Way

Personality, Well-Being, and Music Involvement

This study identified if music experience is related to goal orientation, personality traits, and well-being. The subjects were the students and staff of Linfield College, members of the surrounding community, and members of a professional choir. The sample contained the spectrum of professional musicians to those with no music experience, ages 18 to nearly retired. Data was gathered via an online survey, with items to collect information about: demographics, music involvement throughout life, athletic involvement throughout life, academic information, personality traits, goal orientation, motivation, and several types of well-being. Overall there were significant correlations found between a wide spectrum of music involvement and specific personality traits, such as Openness and Compassion. Other factors, such as behavioral inhibition and approach, also have overarching correlations with music involvement. These findings suggest that there are clear relations between music and goals, motivation, and personality. We also found numerous relationships between various types of well-being and music involvement, some of which were not anticipated. These results have the potential to impact public policy and public school programs

Analyzing Economy Wide Effects of Trade Liberalisation on Vietnam using a Dynamic Computable General Equilibrium Model

Since its reform process in the late 1980s, Vietnam has emerged as a rapidly growing economy with growth rates surpassing its more developed ASEAN neighbours. This paper aims to consider the economy wide impacts of trade liberalisation on Vietnam. We approach this by way of multi-region, multi-good, dynamic growth computable general equilibrium (DCGE) model. We find that trade liberalisation has caused a large fall in wage inequality thus increasing the welfare of unskilled workers in Vietnam. There is also evidence of a shift away from agriculture towards low-tech and intermediate manufacturing sectors. Additionally, there are significant gains in terms of large physical and human capital accumulation.

Ten Economic Facts About Crime and Incarceration in the United States

Crime and high rates of incarceration impose tremendous costs on society, with lasting negative effects on individuals, families, and communities. Rates of crime in the United States have been falling steadily, but still constitute a serious economic and social challenge. At the same time, the incarceration rate in the United States is so high -- more than 700 out of every 100,000 people are incarcerated -- that both crime scholars and policymakers alike question whether, for nonviolent criminals in particular, the social costs of incarceration exceed the social benefits

Multicolour lineage tracing reveals clonal dynamics of squamous carcinoma evolution from initiation to metastasis.

Tumour cells are subjected to evolutionary selection pressures during progression from initiation to metastasis. We analysed the clonal evolution of squamous skin carcinomas induced by DMBA/TPA treatment using the K5CreER-Confetti mouse and stage-specific lineage tracing. We show that benign tumours are polyclonal, but only one population contains the Hras driver mutation. Thus, benign papillomas are monoclonal in origin but recruit neighbouring epithelial cells during growth. Papillomas that never progress to malignancy retain several distinct clones, whereas progression to carcinoma is associated with a clonal sweep. Newly generated clones within carcinomas demonstrate intratumoural invasion and clonal intermixing, often giving rise to metastases containing two or more distinct clones derived from the matched primary tumour. These data demonstrate that late-stage tumour progression and dissemination are governed by evolutionary selection pressures that operate at a multicellular level and, therefore, differ from the clonal events that drive initiation and the benign-malignant transition

Biology and significance of signalling pathways activated by IGF-II

Insulin-like growth factor-II (IGF-II) affects many aspects of cellular function through its ability to activate several different receptors and, consequently, numerous intracellular signalling molecules. Thus, IGF-II is a key regulator of normal foetal development and growth. However, abnormalities in IGF-II function are associated with cardiovascular disease and cancer. Here, we review the cellular mechanisms by which IGF-II's physiological and pathophysiological actions are exerted by discussing the involvement of the type 1 and type 2 IGF receptors (IGF1R and IGF2R), the insulin receptor and the downstream MAP kinase, PI-3 kinase and G-protein-coupled signalling pathways in mediating IGF-II stimulated cellular proliferation, survival, differentiation and migration. © 2011 Informa UK, Ltd

Reconciling Estimates of Religious Giving

Since religious organizations have long been the single largest type of recipient of American giving, the authors undertook in 2003 to examine the Giving USA estimating procedure for giving to religion and compare Giving USA estimates with other approaches for estimating contributions to religion. The yearbook of philanthropy since 1955, Giving USA uses research done by other organizations to estimate giving to religion. Two studies form the basis of Giving USA's estimates. The first is a report from INDEPENDENT SECTOR, which used a national survey of congregations and estimated total giving to religion of $50 billion for 1986. The second is the annual rate of change in giving to religion, which is derived from denominational reports compiled annually by the National Council of Churches of Christ-USA. Since 2002, data about Catholic parish giving has been incorporated into the denominational list that is the basis of the estimated rate of change in giving to religion year to year