1,232 research outputs found

    Stable parallelizability of lens spaces

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    “And by Publishing, to Preserve:” Envisioning Indigenous Futures in Anishinaabe Historical Writing, 1814–1893

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    This dissertation bridges intellectual history, biography, and ethnohistory to reveal how nineteenth-century Anishinaabeg used historical writing to historicize their past, speak to their colonial present, and offer future visions of a transformed colonial society. Historical writing was a key site of colonial struggle in which settler histories attempted to eliminate the Indigenous past and replace it with their own conception of the ‘Indian.’ Between 1814-1893, a remarkable body of Anishinaabe historical writing in English was produced by at least ten different writers, all of whom worked from the stories and knowledge of elders, family members, and knowledge keepers. Through a focus on the lives and writings of Jane Johnston Schoolcraft (Bamewawagezhikaquay), George Copway (Kahgegagahbowh), and Francis Assiginack, this dissertation analyzes expressions of Anishinaabe historical consciousness and the settler-colonial myths and ideas they engaged with. Their writings contended that elements of Anishinaabe ways of living and knowing were not only valid, but invaluable and had to be preserved in the face of permanent loss. In addition to producing immediate political and social change in Canada and the United States, these writers also sought to shape the development of future society. While their future visions called for Indigenous adoption of Euro-Canadian and Euro-American technology and religion, they also presented Anishinaabe knowledge as a gift that could potentially facilitate spiritual and moral renewal in settler society. Historical writing was a foundational aspect of this ‘envisioning process.’ By asserting an Anishinaabe understanding of history through this trans-cultural approach, these writers were able to challenge the historical and theological foundations of settler colonialism, argue for the value and historicity of Indigenous peoples, and posit visions of a settler colonial future that would transform both Indigenous and settler society

    Coherent States and Modified de Broglie-Bohm Complex Quantum Trajectories

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    This paper examines the nature of classical correspondence in the case of coherent states at the level of quantum trajectories. We first show that for a harmonic oscillator, the coherent state complex quantum trajectories and the complex classical trajectories are identical to each other. This congruence in the complex plane, not restricted to high quantum numbers alone, illustrates that the harmonic oscillator in a coherent state executes classical motion. The quantum trajectories are those conceived in a modified de Broglie-Bohm scheme and we note that identical classical and quantum trajectories for coherent states are obtained only in the present approach. The study is extended to Gazeau-Klauder and SUSY quantum mechanics-based coherent states of a particle in an infinite potential well and that in a symmetric Poschl-Teller (PT) potential by solving for the trajectories numerically. For the coherent state of the infinite potential well, almost identical classical and quantum trajectories are obtained whereas for the PT potential, though classical trajectories are not regained, a periodic motion results as t --> \infty.Comment: More example

    Eclipsing Binaries in Open Clusters

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    Detached eclipsing binaries are very useful objects for calibrating theoretical stellar models and checking their predictions. Detached eclipsing binaries in open clusters are particularly important because of the additional constraints on their age and chemical composition from their membership of the cluster. I compile a list containing absolute parameters of well-studied eclipsing binaries in open clusters, and present new observational data on the B-type systems V1481 Cyg and V2263 Cyg which are members of the young open cluster NGC 7128.Comment: 4 pages, 2 colour figures. Poster presentation for IAUS 240 (Binary Stars as Critical Tools and Tests in Contemporary Astrophysics), Prague, August 2006. The poster itself can be dowloaded in ppt and pdf versions from http://www.astro.keele.ac.uk/~jkt/pubs.htm

    Microplastics Detected in Groundwater

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    Low concentrations of microplastics are present in Illinois’ karst groundwater, according to a preliminary study completed in spring 2018. This is the first time that microplastics have been detected in groundwater. The study was conducted in collaboration with scientists at the Illinois State Geological Survey, Illinois State Water Survey, Loyola University Chicago, and ISTC. Full study results published in Panno, S.V., Kelly, W.R., Scott, J., Zheng, W., McNeish, R.E., Holm, N., Hoellein, T.J. and Baranski, E.L. (2019), Microplastic Contamination in Karst Groundwater Systems. Groundwater, 57: 189-196. doi:10.1111/gwat.12862.League of Women Voters of Jo Daviess County; Illinois State Geological Survey; Illinois State Water Survey; Illinois Sustainable Technology Center (Hazardous Waste Research Fund);. Illinois-Indiana Sea Grant (National Oceanic and Atmospheric Administration ; 074483-15907); National Science Foundation (CAREER 1553835).Ope

    Applying emotion-focused therapy to work with the ‘anorexic voice’ within anorexia nervosa: a brief intervention

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    Existent treatments for anorexia nervosa (AN) have produced dissatisfactory outcomes. Research suggests that many people with AN experience an internal “voice” that is related to eating disorder symptoms and relapse. This study was designed to consider the feasibility and acceptability of a new emotion-focused therapy (EFT) of AN, which is designed to work directly with the anorexic voice (AV; EFT-AV). Six adult clients diagnosed with AN who were experiencing an AV and awaiting psychological treatment were recruited from an adult outpatient service. Informed by EFT and previous AV research, the intervention involved six weekly individual sessions that focused on transforming AV experiences and promoting self-compassion. Participants completed standardized measures of eating disorder symptoms, relating to the AV, illness beliefs, motivation to change, and hope of recovery. Participants were also interviewed at the conclusion of the intervention to ascertain their views of on its acceptability. Findings suggested good recruitment, retention, and treatment adherence, which supported the feasibility of the EFT-AV intervention. Thematic analysis of participant interviews indicated the intervention was acceptable and tolerable. Future directions for the treatment of AN, including the potential value of EFT-AV as an adjunct to existing therapies, are discussed. (PsycInfo Database Record (c) 2020 APA, all rights reserved

    Free boson formulation of boundary states in W_3 minimal models and the critical Potts model

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    We develop a Coulomb gas formalism for boundary conformal field theory having a WW symmetry and illustrate its operation using the three state Potts model. We find that there are free-field representations for six WW conserving boundary states, which yield the fixed and mixed physical boundary conditions, and two WW violating boundary states which yield the free and new boundary conditions. Other WW violating boundary states can be constructed but they decouple from the rest of the theory. Thus we have a complete free-field realization of the known boundary states of the three state Potts model. We then use the formalism to calculate boundary correlation functions in various cases. We find that the conformal blocks arising when the two point function of ϕ2,3\phi_{2,3} is calculated in the presence of free and new boundary conditions are indeed the last two solutions of the sixth order differential equation generated by the singular vector.Comment: 25 page

    Sleep problems for children with autism and caregiver spillover effects

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    Sleep problems in children with autism spectrum disorders (ASD) are under-recognized and under-treated. Identifying treatment value accounting for health effects on family members (spillovers) could improve the perceived cost-effectiveness of interventions to improve child sleep habits. A prospective cohort study (N = 224) was conducted with registry and postal survey data completed by the primary caregiver.Wecalculated quality of life outcomes for the child and the primary caregiver associated with treatments to improve sleep in the child based on prior clinical trials. Predicted treatment effects for melatonin and behavioral interventions were similar in magnitude for the child and for the caregiver. Accounting for caregiver spillover effects associated with treatments for the child with ASD increases treatment benefits and improves cost-effectiveness profiles
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