Wavelet Analysis and Lognormal Distributions in GRBs

A wavelet analysis has been performed on 80 intense gamma-ray bursts GRBs) from the BATSE 3B catalog with durations longer than 2 seconds. The wavelet analysis applied novel features developed for edge detection in image processing and this filtering process was used to extract a fit to the irregular GRB profile from the background. A straightforward algorithm was subsequently used to identify statistically significant peaks in this profile. The areas and FWHM of 270 peaks that were characterised as isolated were found to be consistent with lognormal distributions. The distribution of time intervals between peak maxima for all 963 identified peaks in the GRBs is also presented.Comment: 5 pages, 4 figure

Using a Disciplinary Literacy Framework to Teach High School Physics: An Action Research Study

This action research study investigated the impact of teaching physics using a disciplinary literacy framework for instruction across all units in one academic year. Through a suite of vocabulary strategies and lessons that encourage students to write, speak, draw, mathematically translate, and design experiments, students learn to do physics by approximating problems and tasks like physicists. The data from this study suggests that students who exhibit these physicist-like disciplinary literacy behaviors may perform better on math-based assessments so long as they employ disciplinary literacy strategies while problem solving. By teaching via a disciplinary literacy framework, the classroom may become more student-driven where disciplinary literacy behaviors are observable which may result in higher scores on teacher evaluation instruments that favor student-driven instruction. While students that exhibit disciplinary literacy behaviors seem to perform better at math-based problem solving tasks, the relationship between phenomena visualization and corresponding mathematical fluency is less clear and requires further research

Examining the Effect of Aural Preparation on Second Grade Students’ Music Literacy Rhythm Skills

Aural preparation is operationally defined as hearing, performing, decoding, and creating rhythms or pitches aurally prior to the introduction of music notation. The purpose of this study was to explore the effect of aural preparation on second grade students’ music literacy rhythm skills (i.e. reading, performing, and dictation). The research questions that guided this study included: (1) What are the psychometric qualities (i.e., validity and reliability) of the three measures used in this study used to assess rhythmic potential and achievement? (2) How does aural preparation affect students\u27 ability to read and perform rhythms? (3) How does aural preparation affect students\u27 ability to decode and dictate rhythms? Six second grade elementary school classes (N = 125 students) participated in this study. Three classes (n = 64) received aural preparation interventions, and three classes (n = 61) received no aural preparation interventions. Each participant was administered a pretest and posttest that assessed rhythm dictation and rhythm performance skills. Results indicated a significant increase in performance skills but no significant increase in dictation skills when students received aural preparation interventions. Implications for use of aural preparation in the general music classroom as well as future research are discussed

\u3cem\u3eN\u3c/em\u3e-acetylcysteine Decreases Binge Eating in a Rodent Model

Binge-eating behavior involves rapid consumption of highly palatable foods leading to increased weight gain. Feeding in binge disorders resembles other compulsive behaviors, many of which are responsive to N-acetylcysteine (NAC), which is a cysteine prodrug often used to promote non-vesicular glutamate release by a cystine–glutamate antiporter. To examine the potential for NAC to alter a form of compulsive eating, we examined the impact of NAC on binge eating in a rodent model. Specifically, we monitored consumption of standard chow and a high-fat, high carbohydrate western diet (WD) in a rodent limited-access binge paradigm. Before each session, rats received either a systemic or intraventricular injection of NAC. Both systemic and central administration of NAC resulted in significant reductions of binge eating the WD without decreasing standard chow consumption. The reduction in WD was not attributable to general malaise as NAC did not produce condition taste aversion. These results are consistent with the clinical evidence of NAC to reduce or reverse compulsive behaviors, such as, drug addiction, skin picking and hair pulling

Walking in American History: How Long Distance Foot Travel Shaped Views of Nature and Society in Early Modern America

The industrialization of transportation, first with railroads, and then with automobiles, took Americans away from foot transport, changing how Americans interacted with one another and viewed their surroundings. The dissertation traces the walking trips of five central figures in this era of mechanized transport, the personal impact of their experiences while walking through a land they were accustomed to skimming across, and the ways in which these personal revelations led to changes in the national consciousness. Walking upright was central to the development of homo sapiens as a species, and shaped the way they interacted with their environment. Certain aspects of that earliest walking – creativity, connection, independence – have carried through walking throughout history. Walking was integrated into everyday life to the modern industrial age. At that point, while there was continuity with the past, long distance walking took on new meaning with different situation. By examining the walking of John Muir, Charles Fletcher Lummis, Edward Payson Weston, Vachel Lindsay, and Benton MacKaye, both the changes and continuity come to light. Walking was a way for Americans at the turn of the century to stay connected with their past while undergoing rapid modernization. It was a way to preserve individual while fostering community. It allowed them to connect with the natural world while increasingly being separated from it. It let them focus on the physical in the face of the mechanical. These notions have continued to shape the modern American culture and landscape to the present

Gathering, Buying, and Growing Sweetgrass (Muhlenbergia sericea): Urbanization and Social Networking in the Sweetgrass Basket-Making Industry of Lowcountry South Carolina

Despite the visibility of natural resource use and access for indigenous and rural peoples elsewhere, less attention is paid to the ways that development patterns interrupt nontimber forest products (NTFPs) and gathering practices by people living in urbanizing landscapes of the United States. Using a case study from Lowcountry South Carolina, we examine how urbanization has altered the political-ecological relationships that characterize gathering practices in greater Mt. Pleasant, a rapidly urbanizing area within the Charleston-North Charleston Metropolitan area. We draw on grounded visualization—an analytical method that integrates qualitative and Geographic Information Systems (GIS) data—to examine the ways that residential and commercial development has altered collecting sites and practices associated with sweetgrass (Muhlenbergia sericea [Michx.] P.M. Peterson) and three other plant materials used in basket-making. Our analysis focuses on the ecological changes and shifts in property regimes that result; we detail the strategies basket-makers have developed to maintain access to sweetgrass and other raw materials. This research highlights how land development patterns have disrupted historic gathering practices, namely by changing the distribution of plants, altering the conditions of access to these species, and reconfiguring the social networking that takes place to ensure the survival of this distinctive art form

SB52-19/20: Resolution Regarding Referendum Language for Article 6 of the ASUM Constitution

SB52-19/20: Resolution Regarding Referendum Language for Article 6 of the ASUM Constitution was approved unanimously during the January 29th, 2020 meeting of the Associated Students of the University of Montana

SB41-19/20: Resolution Regarding Referendum Language for Article 4 of the ASUM Constitution

SB41-19/20: Resolution Regarding Referendum Language for Article 4 of the ASUM Constitution Passed Unanimously in the December 4, 2019 ASUM Senate Meetin