Canada–US Border Communities: What the People Have to Say

This paper investigates the Canada-U.S. borderlands relationship along the two geographic corridors as bounded by Lake Superior: Sault Ste. Marie, Ontario–Sault Ste. Marie, Michigan and Thunder Bay, Ontario–Duluth, Minnesota. Borderland communities—driven by their shared cultural characteristics (ethnicity, language, religion)—are said to challenge the border as a dividing device and undermine the very essence of international borders. Moreover, borderlands regions are dynamic and overlapping, providing the first point of contact and interaction between nations. We use interviews of over 200 people living in these borderlands regions to investigate the cross-border relationships of Canada-U.S. border communities. We find that despite the challenges of crossing the border, these communities retain a strong sense of shared values

Differences That Matter: Canada, the United States and Environmental Policymaking

Does the way Canada, as a nation state, approach international environmental policymaking make a difference with respect to solving environmental problems in the Americas? We argue that it does, and it is a difference that matters. Canadian efforts toward multilateralism and toward inclusiveness (e.g., willingness to work with weaker nations) serve as a counter balance to the growing unilateralism and ever present exceptionalism of the United States, currently the most powerful country in the world, and Canada’s southern neighbor and regional partner in developing environmental policy that affects the northern Americas directly and all of the Americas indirectly. Our argument is made first generally, and then specifically using involvement and reaction to the goals set out by the Commission for Environmental Cooperation (CEC), where, along with Mexico, Canada and the United States play leading roles. The basic contention of this paper is that the vision for and goals of the CEC are much more aligned with the way Canada perceives the way international environmental policymaking should be implemented, and that by fostering that vision, Canada tries to counter the tendency of the present-day United States administration to go at it alone, and thereby provides a linkage to other countries in the Americas to position themselves for participation in regional environmental policymaking

Bridges and Barriers: The Lake Superior Borderlands

This paper investigates the Canada–US borderlands relationship along the two geographic corridors as bounded by Lake Superior: Sault Ste. Marie, Ontario–Sault Ste. Marie, Michigan and Thunder Bay, Ontario–Duluth, Minnesota. Borderland communities—driven by their shared cultural characteristics (ethnicity, language,religion)—are said to challenge the border as a dividing device and undermine the very essence of international borders. Moreover, borderlands regions are dynamic and overlapping, providing the first point of contact and interaction between nations. Our results depict inherent differences between these particular border regions, with each illustrating characteristics that both connect and divide. Despite the passage of time and both countries’ determined efforts to make the passage safe and less demanding, the peoples in these border regions perceive a continuing frustration with crossing the border and connecting to the people on the other side of the border

Extraction efficiency of a pulse column of varied geometry

An investigation was made of the effects of plate spacing, hole diameter, percent free plate area, pulse amplitude, and pulse frequency on the extraction efficiency of a 1-in. diameter pulse column. The hexone-acetic acid-water system was used. Two levels of each factor were incorporated in an experimental design based on statistical methods. \u27The data were analyzed by the analysis of variance technique

Applications of DFT to the theory of twentieth-century harmony

Music theorists have only recently, following groundbreaking work by Quinn, recognized the potential for the DFT on pcsets, initially proposed by Lewin, to serve as the foundation of a theory of harmony for the twentieth century. This paper investigates pcset “arithmetic” – subset structure, transpositional combination, and interval content – through the lens of the DFT. It discusses relationships between interval classes and DFT magnitudes, considers special properties of dyads, pcset products, and generated collections, and suggest methods of using the DFT in analysis, including interpreting DFT magnitudes, using phase spaces to understand subset structure, and interpreting the DFT of Lewin’s interval function. Webern’s op. 5/4 and Bartok’s String Quartet 4, iv, are discussed.Accepted manuscrip

Chronology of dune development in the White River Badlands, northern Great Plains, USA

Aeolian dune field chronologies provide important information on drought history on the Great Plains. The White River Badlands (WRB) dunes are located approximately 60 km north of the Nebraska Sand Hills (NSH), in the western section of the northern Great Plains. Clifftop dunes, sand sheets, and stabilized northwest-southeast trending parabolic dunes are found on upland mesas and buttes, locally called tables. The result of this study is a dune stabilization history determined from samples collected from stratigraphic exposures and dune crests. Thirty-seven OSL ages, from this and previous investigations, show three periods of dune activity: 1) ~21,000 years ago to 12,000 years ago (a), 2) ~9 to 6 ka, and 3) post-700 a. Stratigraphic exposures and low-relief dune forms preserve evidence of late Pleistocene and middle Holocene dune development, while high-relief dune crests preserve evidence of late Holocene dune development. Results of 12 OSL ages from the most recent dune activation event indicate that Medieval Climate Anomaly (MCA) droughts and Little Ice Age (LIA) droughts caused dune reactivation on the tables. Dune reactivation was accompanied by other drought-driven geomorphological responses in the WRB, including fluvial incision of the prairie and formation of sod tables. Regional significance of the MCA and LIA droughts is supported by similarities in the aeolian chronologies of the NSH at 700–600 a and some western Great Plains dune fields at 420–210 a. Aerial photographs of the WRB show little activity during the Dust Bowl droughts of the 1930s

Advanced Diagnostics for the Study of Linearly Polarized Emission. II: Application to Diffuse Interstellar Radio Synchrotron Emission

Diagnostics of polarized emission provide us with valuable information on the Galactic magnetic field and the state of turbulence in the interstellar medium, which cannot be obtained from synchrotron intensity alone. In Paper I (Herron et al. 2017b), we derived polarization diagnostics that are rotationally and translationally invariant in the $Q$-$U$ plane, similar to the polarization gradient. In this paper, we apply these diagnostics to simulations of ideal magnetohydrodynamic turbulence that have a range of sonic and Alfv\'enic Mach numbers. We generate synthetic images of Stokes $Q$ and $U$ for these simulations, for the cases where the turbulence is illuminated from behind by uniform polarized emission, and where the polarized emission originates from within the turbulent volume. From these simulated images we calculate the polarization diagnostics derived in Paper I, for different lines of sight relative to the mean magnetic field, and for a range of frequencies. For all of our simulations, we find that the polarization gradient is very similar to the generalized polarization gradient, and that both trace spatial variations in the magnetoionic medium for the case where emission originates within the turbulent volume, provided that the medium is not supersonic. We propose a method for distinguishing the cases of emission coming from behind or within a turbulent, Faraday rotating medium, and a method to partly map the rotation measure of the observed region. We also speculate on statistics of these diagnostics that may allow us to constrain the physical properties of an observed turbulent region.Comment: 34 pages, 25 figures, accepted for publication in Ap

Pakistani children’s experiences of growing up with Beta-Thalassemia Major

In this study, we explored the lived experiences of children with beta-thalassemia major (β-TM). We considered children as experts on their experiences in contrast to the prevalent approach of asking parents or other adults about children’s perspectives. The sample consisted of 12 children aged 8 to12 years. There were two stages to data collection. In Stage 1 we employed two focus group discussions and two role plays and analyzed the data thematically. This directly informed Stage 2, consisting of 12 in-depth interviews subjected to interpretative phenomenological analysis. From our findings we show that living with β-TM involves a continuous struggle between feelings of being different and strategies to minimize these differences to strive for normalcy. We suggest that understanding the experiences of living with β-TM from children’s perspectives can provide unique insights into their experiences, which can fill the gap in the existing, predominantly adult-oriented research on chronic illness

Nucleation of vortex arrays in rotating anisotropic Bose-Einstein condensates

The nucleation of vortices and the resulting structures of vortex arrays in dilute, trapped, zero-temperature Bose-Einstein condensates are investigated numerically. Vortices are generated by rotating a three-dimensional, anisotropic harmonic atom trap. The condensate ground state is obtained by propagating the Gross-Pitaevskii equation in imaginary time. Vortices first appear at a rotation frequency significantly larger than the critical frequency for vortex stabilization. This is consistent with a critical velocity mechanism for vortex nucleation. At higher frequencies, the structures of the vortex arrays are strongly influenced by trap geometry.Comment: 5 pages, two embedded figures. To appear in Phys. Rev. A (RC