Current Challenges to Educational Leadership & Administration: An International Survey Report on the Pilot Survey

Published in the UCEA Review, Summer 2018. It was also published in 2017 as a stand-alone report (entered into the RIS)

Statistics of Stellar Variability from Kepler - I: Revisiting Quarter 1 with an Astrophysically Robust Systematics Correction

We investigate the variability properties of main sequence stars in the first month of Kepler data, using a new astrophysically robust systematics correction, and find that 60% of stars are more variable then the active Sun. We define low and high variability samples, with a cut corresponding to twice the variability level of the active Sun, and compare the properties of the stars belonging to each sample. We show tentative evidence that the more active stars have lower proper motions and may be located closer to the galactic plane. We also investigate the frequency content of the variability, finding clear evidence for periodic or quasi-periodic behaviour in 16% of stars, and showing that there exist significant differences in the nature of variability between spectral types. Of the periodic objects, most A and F stars have short periods (< 2 days) and highly sinusoidal variability, suggestive of pulsations, whilst G, K and M stars tend to have longer periods (> 5 days, with a trend towards longer periods at later spectral types) and show a mixture of periodic and stochastic variability, indicative of activity. Finally, we use auto-regressive models to characterise the stochastic component of the variability, and show that its typical amplitude and time-scale both increase towards later spectral types, which we interpret as a corresponding increase in the characteristic size and life-time of active regions.Comment: Accepted A&A, 13 pages, 13 figures, 4 table

Almost Somewhere

Day One, and already she was lying in her journal. It was 1993, Suzanne Roberts had just finished college, and when her friend suggested they hike California’s John Muir Trail, the adventure sounded like the perfect distraction from a difficult home life and thoughts about the future. But she never imagined that the twenty-eight-day hike would change her life. Part memoir, part nature writing, part travelogue, Almost Somewhere is Roberts’s account of that hike. John Muir had written of the Sierra Nevada as a “vast range of light,” and this was exactly what Roberts was looking for. But traveling with two girlfriends, one experienced and unflappable and the other inexperienced and bulimic, she quickly discovered that she needed a new frame of reference. Her story of a month in the backcountry—confronting bears, snowy passes, broken equipment, injuries, and strange men—is as much about finding a woman’s way into outdoor experience as it is about the natural world she so eloquently describes. Candid and funny and, finally, wise, Almost Somewhere is not just the whimsical coming-of-age story of a young woman ill-prepared for a month in the mountains but also the reflection of a distinctly feminine view of nature

Everywhere Flies the American Flag

The publico rattled along,bounced over pot holes,locals called out their stop:Tex-Ah-Co. We veeredpast McDonalds, pulled overto the gas station justlong enough for the mento get off the bus

Almost Somewhere

Day One, and already she was lying in her journal. It was 1993, Suzanne Roberts had just finished college, and when her friend suggested they hike California’s John Muir Trail, the adventure sounded like the perfect distraction from a difficult home life and thoughts about the future. But she never imagined that the twenty-eight-day hike would change her life. Part memoir, part nature writing, part travelogue, Almost Somewhere is Roberts’s account of that hike. John Muir had written of the Sierra Nevada as a “vast range of light,” and this was exactly what Roberts was looking for. But traveling with two girlfriends, one experienced and unflappable and the other inexperienced and bulimic, she quickly discovered that she needed a new frame of reference. Her story of a month in the backcountry—confronting bears, snowy passes, broken equipment, injuries, and strange men—is as much about finding a woman’s way into outdoor experience as it is about the natural world she so eloquently describes. Candid and funny and, finally, wise, Almost Somewhere is not just the whimsical coming-of-age story of a young woman ill-prepared for a month in the mountains but also the reflection of a distinctly feminine view of nature

Examining the Teacher Perceptions, Implementations, Barriers, and Benefits Associated with the Missouri Reading Initiative

Reading is an essential skill taught during elementary academic years. The Sunny Day School District recognized the need of locating a reading program tailored to effectively meeting the instructional needs of students. A preliminary question was, “how do we increase the reading achievement of all our students?” In response to this instructional concern, the Sunny Day School District decided to implement the Missouri Reading Initiative (MRI), a state program created to assist teachers with scientifically research based reading instructional strategies. This study addressed the problem of a lack of a program evaluation for the MRI program as implemented within the elementary schools of the Sunny Day School District. Qualitative and quantitative approaches added depth and authenticity to the data collection process and the intention was to triangulate the data in order to obtain a holistic picture of the MRI program in one school district. Design features were inclusive of the following study elements: administrative interviews, surveys, classroom observations, and MAP Scale Scores. Statistical tools used to analyze the MAP Scale Scores comprised of two z-tests for proportions calculated to find differences in opinions and an ANOVA to find any variances between MAP Scale Scores of grades 3-5 during the years of this research study An alignment of the research questions, observations, and surveys to the interview questions was completed then linked with the literature. Interviews and observations revealed valuable details of the implementation process of the MRI program. Emerging themes added data about the implementation processes and were reflective of management and classroom facilitation. Survey results did suggest MRI was beneficial for assisting teachers with research based instructional strategies. Two z tests for proportions of the survey results were in the critical range causing the rejection of the null hypotheses. An ANOVA of the MAP scores did not show a significant change in any one year over the five-year period. Before deciding on implementing an extensive reading program similar to MRI, other districts carefully consider the evaluation methods of teachers. Factors not considered in this study, such as evaluative measures (cognitive coaching versus traditional methods), may yield different program implementation results

Introduction to translating Etkind

The text is a translation from Russian of the first chapter of Soviet theorist Efim Etkind’s 1963 work Poeziia i perevod [Poetry and Translation], in slightly abridged form. Etkind is a vital figure within the translation milieu of the ‘Thaw’ era of the late 1950s and early 1960s, when there was a policy of de-Stalinization and a degree of liberalization. Etkind’s insightful work on poetry translation using comparative stylistics reflected, in some ways, the cultural-political environment of the time. It differed radically from the Realist approach of Ivan Kashkin, who was influenced by Socialist Realism and Stalin-era rhetoric. Etkind pushed the boundaries of what could be said about translation. His apparently apolitical approach was in fact strongly politicized in the Soviet context, and his choice of authors and translators to discuss evidenced his sympathy for those out of favor with the regime and for fellow Jews

A survey of relationships among rare breeds of swine

Swine production has evolved over the last century resulting in the loss of biodiversity among breeds utilized by commercial producers. Only a handful of breeds are used extensively by these producers, with many swine breeds facing extinction due to lack of popularity. These breeds, often called heritage breeds, are not without value, they simply lack many traits seen by popular commercial breeds, such as fast growth rate, leanness, and large litters. Valued by small farms for hardiness and self sufficiency, heritage breeds are still at risk of extinction due to small population numbers and lack of pedigree data. Maintaining accurate pedigrees reduces the chance of producers breeding closely related individuals. Such close breeding can result in a concentration of undesirable traits that ultimately reduce the overall health of a population or breed. This research estimates levels of relationship between individuals within a breed based solely on information from an individual's DNA. Comparing results among 7 heritage breeds and 3 commercial breeds of pigs revealed higher levels of relation between individuals from heritage breeds versus commercial breeds. Inbreeding values were also higher for individuals from heritage breeds, indicating a mating between related individuals occurred somewhere in their pedigree. When access to complete pedigrees is not possible, as is the case for many heritage breeds, DNA can provide information for producers to make educated breeding decisions. Maintaining low levels of inbreeding and reducing breeding between closely related individuals can help preserve genetic diversity within a breed. By preserving genetic diversity, a breed stands a better chance of maintaining healthy genetic traits and surviving for future generations

Topological Chaos in a Three-Dimensional Spherical Fluid Vortex

In chaotic deterministic systems, seemingly stochastic behavior is generated by relatively simple, though hidden, organizing rules and structures. Prominent among the tools used to characterize this complexity in 1D and 2D systems are techniques which exploit the topology of dynamically invariant structures. However, the path to extending many such topological techniques to three dimensions is filled with roadblocks that prevent their application to a wider variety of physical systems. Here, we overcome these roadblocks and successfully analyze a realistic model of 3D fluid advection, by extending the homotopic lobe dynamics (HLD) technique, previously developed for 2D area-preserving dynamics, to 3D volume-preserving dynamics. We start with numerically-generated finite-time chaotic-scattering data for particles entrained in a spherical fluid vortex, and use this data to build a symbolic representation of the dynamics. We then use this symbolic representation to explain and predict the self-similar fractal structure of the scattering data, to compute bounds on the topological entropy, a fundamental measure of mixing, and to discover two different mixing mechanisms, which stretch 2D material surfaces and 1D material curves in distinct ways.Comment: 14 pages, 11 figure