cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Geophysical Characterization of an Undrained Oil Sands Tailings Pond Dyke Alberta, Canada
Creators: name: Booterbaugh, Aaron
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Geophysics
subject: Tailings
subject: Oil
subject: Salinity
subject: resistivity
subject: Electromagnetic
subject: moisture

description: Geophysical characterization of an undrained oil sands tailings pond dyke was conducted at Syncrude Canada’s Southwest Sand Storage Facility (SWSS). Push tool conductivity (PTC), electromagnetic (EM), and electrical resistivity tomography (ERT) methods in conjunction with hydrogeological and chemistry measurements were used to investigate soil moisture, hydraulic head, and groundwater salinity distributions. Normalization and calibration procedures were conducted on EM data to build statistically consistent maps between survey years. An Archie’s Law petrophysical model was utilized to relate measured bulk conductivity, from geophysical surveying, with measures of soil moisture and fluid electrical conductivity. It was found that a relatively strong relationship between bulk electrical conductivity and soil moisture exists, while weak to no correlation was observed between bulk and fluid electrical conductivity. ERT surveying was capable of clearly identifying the location of the water table within the dyke. This study provides a unique look into the application of geophysical techniques to investigate soil moisture, hydraulic head, and salt distribution in an active undrained tailings dam structure.
Supplementary document for Sparse Lissajous-scanning reflectance confocal microscope with an adjustable field-of-view and fast iterative Fourier filtering reconstruction - 6362682.pdf
Creators: name: Coleal, Cameron
name: Wilson, Jesse
name: Hudson, William
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Point spread function derivation
Dualities for 3d Theories with Tensor Matter
Creators: name: Kapustin, Anton
name: Kim, Hyungchul
name: Park, Jaemo
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study dualities for ${\cal N}=2$ 3d Chern-Simons matter theories with gauge groups U/Sp/O, matter in the two-index tensor representations (adjoint/symmetric/antisymmetric) in addition to the fundamental representation, and a superpotential. These dualities are analogous to Kutasov-Schwimmer-Seiberg dualities in 4d. We test them by computing the superconformal index and the partition function on $S^3$ for many dual pairs and find perfect agreement. In some cases we find a simple dual description for theories with tensor matter and no superpotential, thereby generalizing the "Duality Appetizer" of Jafferis and Yin to an infinite class of theories. We also investigate nonperturbative truncation of the chiral ring proposed in the context of 4d dualities.
description: 28 pages; one reference added
Longitudinal interactions between residual symptoms and physiological stress in the remitted symptom network structure of depression
Creators: name: Whiston, Aoife
name: Igou, Eric  Raymond
name: Fortune, Dónal
name: Devices Team, Analog
name: Semkovska, Maria
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology

description: Residual symptoms and stress are amongst the most reliable predictors of relapse in remitted depression. Standard methodologies often preclude continuous stress sampling or the evaluation of complex symptom interactions. This limits knowledge acquisition relative to the day-to-day interactions between residual symptoms and stress. The study aims to explore the interactions between physiological stress and residual symptoms network structure in remitted depression. Twenty-two individuals remitted from depression completed baseline, daily diary (DD), and post-DD assessments. Self-reported stress and residual symptoms were measured at baseline and post-DD. Daily diaries required participants to use a wearable electrodermal activity (EDA) device during waking hours and complete residual symptom measures twice daily for 3-weeks. Two-step multilevel vector auto-regression models were used to estimate contemporaneous and dynamic networks. Depressed mood and concentration problems were central across networks. Skin conductance responses (SCRs), suicide, appetite, and sleep problems were central in the temporal and energy loss in the contemporaneous network. Increased SCRs predicted decreased energy loss. Residual symptoms and stress showed bi-directional interactions. Overall, depressed mood and concentration problems were consistently central, thus potentially important intervention targets. Non-obtrusive bio-signal measures should be used to provide the clinical evidence-base for modelling the interactions between depressive residual symptoms and stress. Practical implications are discussed throughout related to focusing on symptom-specific interactions in clinical practice, simultaneously reducing residual symptom and stress occurrences, EDA as pioneering signal for stress detection, and the central role of specific residual symptoms in remitted depression.
Relating field observations and snowpack tests to snow avalanche danger
Creators: name: Haladuick, Shane
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Engineering--Civil
subject: avalanche character
subject: avalanche forecasting
subject: recreationist

description: The avalanche forecast regions in Canada range from 100 to 50,000, far larger than the 10 km2 covered in a typical backcountry day. This difference in scale could cause the local avalanche danger to differ from the regional bulletin. This study assessed the relationship of field observations and snowpack tests with the local avalanche danger. Data were collected over 6 winters during 425 field days. Univariate and multivariate cross-validated classification trees were created using the observations to predict the local danger. The univariate trees show the critical value of an observation that indicates elevated danger. The multivariate trees show how the observations can be combined. These trees provide objective data that could form the framework of a decision support tool to help recreationists localize the danger. Contrary to popular belief, field observations were more valuable than stability tests for localizing the danger.
Review Essay: Music and Modernity Among First Peoples of North America (Victoria Lindsay Levine and Dylan Robinson, eds.); Hip Hop Beats, Indigenous Rhymes: Modernity and Hip Hop in Indigenous North America (Kyle T. Mays)
Creators: name: Veeraraghavan, Lee
Publisher: name: Transmotion
Year: 2020

description: Transmotion, Vol 6 No 2 (2020): Winter 2020
Variability in Blazars: Clues from PKS 2155-304
Creators: name: Narayan, Ramesh
name: Piran, Tsvi
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Rapid variability on a time scale much faster than the light-crossing time of the central supermassive black hole has been seen in TeV emission from the blazar PKS 2155-304. The most plausible explanation of this puzzling observation is that the radiating fluid in the relativistic jet is divided into a large number of sub-regions which move in random directions with relativistic speeds. We consider two versions of this "jets in a jet" model. In the first, the "subjets" model, stationary regions in the mean jet frame emit relativistic subjets that produce the observed radiation. The variability time scale is determined by the size of the sub-regions in the mean jet frame. This model, which is motivated by magnetic reconnection, has great difficulty explaining the observations in PKS 2155-304. In the alternate "turbulence" model, various sub-regions move relativistically in random directions and the variability time scale is determined by the size of these regions in their own comoving frames. This model fits the data much more comfortably. We consider collisions between TeV photons emitted from different sub-regions and find that, in both the subjets and turbulence models, the mean bulk Lorentz factor of the jet needs to be greater than 25 to avoid the pair catastrophe.
description: 8 pages, submitted to MNRAS
Hoktiwe (for L. Rain Prud’homme-Cranford)
Creators: name: Darensbourg, Jeffery U.
Publisher: name: Transmotion
Year: 2020

description: This is a cento composed using extracted sentences from both the 1932 and 2019 published dictionaries of Ishakkoy, also known as Atakapan, a dormant Indigenous language from Louisiana and Texas. The corpus of texts in the language is small, however the published materials have hundreds of example sentences. These were extracted and used to make new compositions, presenting a model for corpus expansion and creative composition in an Indigenous language.
description: Transmotion, Vol 6 No 2 (2020): Winter 2020
Simultaneous and Sequential Bilinguals in a German Bilingual Program
Creators: name: Dresser, Roswita Aleida Helene
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Education--Bilingual and Multicultural
subject: Bilingual Programs
subject: German
subject: Elementary

description: Bilingual Programs in western Canada provide children with instruction in a non-official language for up to 50% of the school day, and the corresponding curriculum documents are based on the assumption that the prototypical student speaks English at home and is learning the minority language as a second language at school. However, recent changes in immigration patterns in Canada have resulted in diverse linguistic profiles of students for which the Programs were not designed. In this study, nexus analysis (Scollon & Scollon, 2004) is used to examine one elementary German Bilingual Program in which the historical bodies (ways of being) of students are emerging bilinguals (Escamilla & Hopewell, 2009) in the process of developing their identity and proficiency as bilinguals. Based on the nature of their bilingualism, their linguistic profiles can be categorized as (a) simultaneous bilinguals of German and English; (b) sequential bilinguals dominant in English; (c) sequential bilinguals dominant in German; or (d) sequential bilinguals with another home language. The interaction order (ways of doing) of a typical day in the Program, as well as the progression from grade one to grade six, reflects how bilingualism is expressed, supported and integrated in the social context of the school. Numerous discourses in place (ways of thinking) are identified: dialect tolerance, contextual language choice, development of bilingual language proficiency, educational enrichment, identity negotiation, holistic bilingual perspective and a tension between additive and subtractive bilingualism. Historical body, interaction order and the discourses in place converge as a nexus of practice that reveals the relationships among languages, language users and social contexts of this Bilingual Program (Hornberger & Hult, 2008). The results from this study challenge the assumptions of the curriculum, practices within the Program and discourses that do not integrate the diverse linguistic profiles of students. Although the curriculum documents are primarily written with students of one specific linguistic profile in mind, this study reveals that in the context of the German Bilingual Program educators recognize the diverse linguistic profiles of students, but tensions in policy and practice affect the development of bilingualism for all students.
Associations between central pulse pressure, microvascular endothelial function, and fluid overload in peritoneal dialysis patients
Creators: name: Koh, Seoyon
name: Kim, Seung-Jung
name: Lee, Shina
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Mathematical Sciences not elsewhere classified
subject: Marine Biology
subject: Cancer

description: Microcirculatory endothelial dysfunction is a complex phenomenon that contributes to the development of cardiovascular disease. However, the relationship between microcirculatory endothelial dysfunction and macrovascular disease remains incompletely understood. Fluid overload is a risk factor for cardiovascular mortality in patients undergoing peritoneal dialysis. Therefore, we investigated the effects of chronic fluid overload on both the microcirculation and macrocirculation in these patients. Thirty patients undergoing peritoneal dialysis were included in this cross-sectional study. We measured their central blood pressure and pulse wave velocity, assessed their microvascular endothelial function using drug-induced iontophoresis with laser Doppler flowmetry, and determined the amount of fluid overload using bioimpedance. We conducted a Spearman correlation analysis, univariate analysis, and stepwise multivariate regression models to determine the associations among the hemodynamic parameters. Acetylcholine-induced iontophoresis with laser Doppler flowmetry showed a correlation with both brachial and central pulse pressure (PP), but not with pulse wave velocity. Fluid overload was associated with both central and brachial PP and remained an independent predictor of central PP even after adjusting for multiple factors. However, fluid overload was not associated with microcirculatory endothelial function. In peritoneal dialysis patients, we observed a significant association between central PP and microvascular endothelial function, indicating a connection between macrocirculation and microcirculation. However, conclusive evidence regarding fluid overload as a mediator between these circulatory systems is lacking. Further research is needed to investigate this relationship.
A Magellan-IMACS-IFU Search for Dynamical Drivers of Nuclear Activity. I. Reduction Pipeline and Galaxy Catalog
Creators: name: Westoby, Paul
name: Mundell, Carole
name: Nagar, Neil
name: Maciejewski, Witold
name: Emsellem, Eric
name: Roth, Martin
name: Gerssen, Joris
name: Baldry, Ivan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using the Inamori Magellan Areal Camera and Spectrograph (IMACS) integral-field unit (IFU) on the 6.5m Magellan telescope, we have designed the first statistically significant investigation of the two-dimensional distribution and kinematics of ionized gas and stars in the central kiloparsec regions of a well-matched sample of Seyfert and inactive control galaxies selected from the Sloan Digital Sky Survey. The goals of the project are to use the fine spatial sampling (0.2 arcsec/pixel) and large wavelength coverage (4000-7000A) of the IMACS-IFU to search for dynamical triggers of nuclear activity in the central region where active galactic nucleus (AGN) activity and dynamical timescales become comparable, to identify and assess the impact of AGN-driven outflows on the host galaxy and to provide a definitive sample of local galaxy kinematics for comparison with future three-dimensional kinematic studies of high-redshift systems. In this paper, we provide the first detailed description of the procedure to reduce and calibrate data from the IMACS-IFU in `long mode' to obtain two-dimensional maps of the distribution and kinematics of ionized gas and stars. The sample selection criteria are presented, observing strategy described and resulting maps of the sample galaxies presented along with a description of the observed properties of each galaxy and the overall observed properties of the sample.
description: 62 pages. 41 figures. 5 tables. Accepted for publication in ApJS. High-resolution version available at: http://www.astro.ljmu.ac.uk/~pbw/IMACS-IFU/IMACS-1-highRes.pdf
Language Ideologies and Language Socialization: Case Studies of Italian Families in Calgary
Creators: name: Torta, Romina
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Education--Bilingual and Multicultural
subject: Language Ideologies and Socialization

description: The present study examines the language socialization practices and choices of four Italian families in Calgary. The study is examined through the lens of critical sociolinguistics with a focus on how language ideologies are embedded in the language socialization, identities, and discourses of the four families, as well as why and what consequences such ideologies could have on the linguistic future of the children. The research focuses on the last generation of Italian immigrants, who have been leaving Italy over the last 15 years. Both parents and children of each family have been interviewed and a Critical Discourse Analysis approach has been used to examine the data. Findings reveal contradictions and ambivalences around the Italian language, alongside ideologies that grant prestige to English and a standard and purist preference for using languages, in particular Italian. Such ideologies lead to different outcomes on the language socialization of each family and the Italian maintenance of the children.
Additional file 1 of Effect of camel milk on lipid profile among patients with diabetes: a systematic review, meta-analysis, and meta-regression of randomized controlled trials
Creators: name: Khalid, Narmin
name: Abdelrahim, Dana N.
name: Hanach, Nivine
name: AlKurd, Refat
name: Khan, Moien
name: Mahrous, Lana
name: Radwan, Hadia
name: Naja, Farah
name: Madkour, Mohamed
name: Obaideen, Khaled
name: Khraiwesh, Husam
name: Faris, MoezAlIslam
Publisher: name: figshare
Year: 2023
Subjects: Medicine
Biotechnology
Chemical Sciences not elsewhere classified
Science Policy

description: Supplementary Material 1
The Evaluation of MS4A4A and MS4A8B Expression in Hematopoietic Cells
Creators: name: Puri, Mandip
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Biology
subject: Biology--Molecular
subject: Immunology
subject: FOS: Clinical medicine
subject: MS4A
subject: MS4A4A
subject: MS4A8B
subject: M2 macrophage
subject: M1 macrophage
subject: Alternatively activated macrophage
subject: Classically activated macrophage

description: MS4A is a family of proteins with four membrane spanning regions. Currently, among the 15+ human MS4A family members, most remain uncharacterized. A notable exception is MS4A1 (CD20) which displays restricted expression on the surface of B-lymphocytes and forms the immunotherapeutic target of Rituximab. Given the importance of MS4A1 as an immunotherapeutic target our goal was to search for additional members of the MS4A family that may form potential immunotherapeutic targets. Here, I describe the evaluation of I) MS4A8B and MS4A4A expression in select hematopoietic cell subsets, using monoclonal antibodies that were generated against extracellular epitopes, and II) the investigation of whether monoclonal antibodies directed against MS4A4A can induce Fc-receptor independent effects characteristic of immunotherapeutic antibodies such as cellular apoptosis. We found that MS4A8B is not expressed in any of the hematopoietic cell subsets evaluated but is present in the NCI-H69 small cell lung carcinoma cell line. However, we identified that MS4A4A is expressed in select hematopoietic cell subsets. Specifically, herein I report that MS4A4A is expressed in peripheral blood monocytes and monocyte derived M2 macrophages but not resting peripheral blood granulocytes, lymphocytes, or M1 macrophages. I also report that monoclonal antibodies directed against MS4A4A were not capable of inducing cellular apoptosis or influencing select cellular functions in the cells evaluated.
Modulated Reheating and Large Non-Gaussianity in String Cosmology
Creators: name: Cicoli, M.
name: Tasinato, G.
name: Zavala, I.
name: Burgess, C. P.
name: Quevedo, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A generic feature of the known string inflationary models is that the same physics that makes the inflaton lighter than the Hubble scale during inflation often also makes other scalars this light. These scalars can acquire isocurvature fluctuations during inflation, and given that their VEVs determine the mass spectrum and the coupling constants of the effective low-energy field theory, these fluctuations give rise to couplings and masses that are modulated from one Hubble patch to another. These seem just what is required to obtain primordial adiabatic fluctuations through conversion into density perturbations through the `modulation mechanism', wherein reheating takes place with different efficiency in different regions of our Universe. Fluctuations generated in this way can generically produce non-gaussianity larger than obtained in single-field slow-roll inflation; potentially observable in the near future. We provide here the first explicit example of the modulation mechanism at work in string cosmology, within the framework of LARGE Volume Type-IIB string flux compactifications. The inflationary dynamics involves two light Kaehler moduli: a fibre divisor plays the role of the inflaton whose decay rate to visible sector degrees of freedom is modulated by the primordial fluctuations of a blow-up mode (which is made light by the use of poly-instanton corrections). We find the challenges of embedding the mechanism into a concrete UV completion constrains the properties of the non-gaussianity that is found, since for generic values of the underlying parameters, the model predicts a local bi-spectrum with fNL of order `a few'. However, a moderate tuning of the parameters gives also rise to explicit examples with fNL O(20) potentially observable by the Planck satellite.
description: 42 pages, 2 figures
Pistils and stamens : botanophilia, sex, and nationhood in eighteenth-century Georgian Britain
Creators: name: Calyniuk, Darlene Kay
Publisher: name: University of British Columbia
Year: 2010

description: Botanical spaces and their visual representations fascinated British viewing publics, particularly in the years 1760 to 1810 during the reign of King George III. This broad public interest in natural history’s new knowledge was fueled by the appeal of Carolus Linnaeus’s sexual system of classification, a taxonomy that held the promise of providing universal accessibility and rational order in the exploration of the natural world. The impetus that Linnaean taxonomies gave to botanical enterprise, however, was also unsettling. Natural history’s laws that claimed a taxonomic rationale capable of consistently regulating previous unknowns, in fact, raised ambiguities in relation to the artificiality of the Linnaean system and crucially, the concepts of affinity, hybridity, and variability. As a result, particularly in the last half of the eighteenth century and the beginning of the nineteenth century, these Linnaean tenets threatened to destabilize status quos by mobilizing new anxieties around gender, sexuality, class, and race. In addition, Linnaean notions of oeconomia, that is, botanical resource utility, posed challenges to Britain’s cultural conventions and beliefs. At the broadest level, then, my dissertation explores the interchanges and attendant tensions between natural history’s new knowledge and emerging social anxieties in a period that was especially marked out by Britain’s significant loss of the American colonies and the threat of the French Revolution. More specifically, through examination of visual imagery, my thesis explores a conflicted ‘botanoscape’—one that reveals the ways in which visual representations and display of the botanical were central to the mediation and diffusion of anxieties opened up by Linnaeus’s new systematics and by ongoing transformations within the nation.
Theory of inverse Faraday effect in disordered metal in THz regime
Creators: name: Taguchi, Katsuhisa
name: Tatara, Gen
Publisher: name: arXiv
Year: 2011
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We calculate the magnetization dynamics induced by the inverse Faraday effect in disordered metals in THz regime by using the diagrammatic method. We find that the induced magnetization is proportional to the frequency of circularly polarized light.
description: 11 pages, 3 figures
"Do You Think the Angels Will Speak Spanish?": Nurses' Experiences of Death in Pediatric Oncology
Creators: name: Morck, Angela
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Nursing
subject: FOS: Health sciences
subject: Nursing
subject: Pediatric Oncology
subject: patient death
subject: Hermeneutics

description: Caring for children dying of cancer and families experiencing immense suffering is challenging complex work. Pediatric oncology nurses attend to the physical and emotional needs of children and their families during the illness progression, at the moment of death, and beyond, however, little is known about how they themselves are affected, and how this ultimately influences the care they are able to give. My intent with this philosophical hermeneutic research was to add to our understandings of these effects on pediatric oncology nurses and to translate this understanding into ways to support nurses in this challenging component of their work. Fifteen pediatric oncology registered nurses were interviewed to expand our understanding of this topic. These data were then analyzed according to hermeneutic tradition as guided by the philosophical hermeneutics of Hans-Georg Gadamer. Findings from this research revealed that nurses struggled to navigate the ideals of nursing versus the realities of practice when working with children who may die. This continual shifting of lines and positions called for them to maintain a fine balance between the personal and the professional. This ontological struggle is not absolute; rather, it is premised on a shifting continuum based on a complexity of personal and professional beliefs, experiences, and expectations. There needs to be a reminder that death continues to be an unfortunate constant in the work of these nurses. A reality, that in many ways, society has turned away from and hidden, a reality that has shaped the way death is experienced within pediatric oncology. This common middle ground is what nurses called for in order to be sustained and remain in their work. Research and transformative education that specifically addresses the tension created by insufficient end of life and death education is required for nurses to feel more comfortable and competent within the ontology of death and dying. This necessitates a re-conceptualization of how death is processed in pediatric oncology.
Additional file 1 of A metabolomics study in aqueous humor discloses altered arginine metabolism in Parkinson’s disease
Creators: name: Serrano-Marín, Joan
name: Marin, Silvia
name: Bernal-Casas, David
name: Lillo, Alejandro
name: González-Subías, Marc
name: Navarro, Gemma
name: Cascante, Marta
name: Sánchez-Navés, Juan
name: Franco, Rafael
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Supplementary Material 1. Figure S1: Volcano plot. Figure S2. ROC curves; Table S1: metabolite concentrations for every sample.
Control of Exotic Pests: Forecasting Economic Impacts
Creators: name: Kuchler, Fred
name: Duffy, Michael
name: Kuchler, Fred
name: Duffy, Michael
Publisher: name: Unknown
Year: 1984
Subjects: subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Productivity Analysis
subject: Research Methods/ Statistical Methods
subject: Econometric-simulation model
subject: exotic pest
subject: soybean
subject: disease
subject: soybean rust
subject: quarantines
subject: areawide programs
subject: plant breeding
subject: costs and benefits
subject: forecasts

description: Dollar losses beyond the farm gate resulting from the entry and establishment of an exotic crop pest may far exceed the direct losses farmers incur. This case study uses an econometric-simulation model to estimate the benefits to U.S. agriculture of preventing entry or establishment of the exotic soybean pest, Phakopsora pachyrhizi Sydow. Seven scenarios with different disease losses in different soybean-producing regions are simulated. Productivity losses caused by the disease generally elevate growers' income levels because commodity price increases outweigh production losses for most growers.
Spin-Wave Modes and Their Intense Excitation Effects in Skyrmion Crystals
Creators: name: Mochizuki, Masahito
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We theoretically study spin-wave modes and their intense excitations activated by microwave magnetic fields in the skyrmion-crystal phase of insulating magnets by numerically analyzing a two-dimensional spin model using the Landau-Lifshitz-Gilbert equation. Two peaks of spin-wave resonances with frequencies of ~1 GHz are found for in-plane a.c. magnetic field where distribution of the out-of-plane spin components circulates around each skyrmion core. Directions of the circulations are opposite between these two modes, and hence the spectra exhibit salient dependence on the circular polarization of irradiating microwave. A breathing-type mode is also found for out-of-plane a.c. magnetic field. By intensively exciting these collective modes, melting of the skyrmion crystal accompanied by a red shift of the resonant frequency is achieved within nano seconds.
description: 5 pages, 5 figures, accepted for publication in Physical Review Letters
A comprehensive approach to pain management among adults with sickle cell disease in the emergency department
Creators: name: Dufort, Geraldine
Publisher: name: No Publisher Supplied
Year: 2020

description: Sickle cell disease, “the most common blood disorder,” affects more than 100,000 people in the United States. Two million Americans are genetic carriers of the sickle-cell trait. The most common challenge sickle-cell patients face is pain management. As a result, they frequently utilize emergency services and hospitalization for pain management. Adult hospital visits are estimated at more than 230,000 per year, and readmission often occurs within a 30-day period. The prevalence and management of sickle-cell disease is examined in an acute care setting, as are care measures. Retrospective data was collected and analyzed regarding adult sickle-cell patient visits in the emergency department, to identify trends before and after implementation of a sickle-cell protocol pathway. Evidence-based guidelines were examined for acute care management. The objectives for this study are (a) to use a healthcare information database to extract data regarding utilization of services before and after implementation of the protocol, (b) find gaps in treatment from chart reviews, and (c) to create a white paper to recommend changes to provide better care. The theoretical framework used to formulate this project is the reach, effectiveness, adoption, implementation, and maintenance model. After the chart review, results showed that the adherence rates decreased overtime, admissions increased with the use of the protocol, first pain intervention time decreased, and reassessment times varied but did not align with facility policy.
Studies of The Great Egg Harbor River and Bay
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1972

description: The purpose of the first portion of the project was to inventory the fishes inhabiting the Great Egg Harbor Estuary, including the Tuckahoe, Middle and Great Egg Harbor Rivers and Great Egg Harbor and Peck's Bays.The purpose of the second portion of the study was to map and/or describe the physical and chemical attributes of the Great Egg Harbor Estuary.The third portion of the study was a use study of the Great Egg Harbor Estuary was made from September 1970 through August 1971 as part of the continuing study of New Jersey's estuarine resources. Counts from aerial surveys wore used to calculate the estimated man days of users of the study area in nine different activity categories. Creel and bag census surveys were used to determine effort and estimated total harvest of boat fishermen, bank fishermen, waterfowl hunters, and trappers.
Nitric Oxide Chemistry and Velocity Slip Effects in Hypersonic Boundary Layers
Creators: name: Arisman, Christopher
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Chemistry
subject: Optics
subject: Engineering--Aerospace
subject: Planar laser induced fluorescence
subject: Computational fluid dynamics
subject: Hypersonic flow
subject: OpenFOAM

description: Simulations of gas seeding into a hypersonic boundary layer flow were performed using OpenFOAM to investigate and quantify errors associated with quantitative planar laser induced fluorescence thermometry and velocimetry techniques. A modified version of the compressible rhoCentralFoam solver was used to simulate multicomponent chemically reactive flows. Simulations replicated conditions used in NASA Langley’s 31” Mach 10 facility with a wedge model oriented at various angles of attack. The magnitude and location of potential reactions were estimated through the use of an analytical half-life model and non-reactive simulations. These estimates were compared to the reactive simulations. The order of magnitude predictions were found to be accurate when a simulated estimate of the distribution of nitric oxide was used. The effect of the heat release due to chemical reactions on the velocity and temperature profiles was investigated and found to be negligible for all positive angles of attack.
Temperature Structure and Mass-Temperature Scatter In Galaxy Clusters
Creators: name: Ventimiglia, D. A.
name: Voit, G. M.
name: Rasia, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Precision cosmology studies based on wide-field surveys of galaxy clusters benefit from constraints on intrinsic scatter in mass-observable relationships. In principle, two-parameter models combining direct measurements of galaxy cluster structural variation with mass proxies such as X-ray luminosity and temperature can be used to constrain scatter in the relationship between the mass proxy and the cluster's halo mass and to measure the redshift evolution of that scatter. One candidate for quantifying cluster substructure is the ICM temperature inhomogeneity inferred from X-ray spectral properties, an example of which is T_HBR, the ratio of hardband to broadband spectral-fit temperatures. In this paper we test the effectiveness of T_HBR as an indicator of scatter in the mass-temperature relation using 118 galaxy clusters simulated with radiative cooling and feedback. We find that, while T_HBR is correlated with clusters' departures δlnT_X from the mean M-T_X relation, the effect is modest.
description: ApJ,in press, 30 pages, 13 figures
Visceral fat and its dynamic change are associated with renal damage: Evidence from two cohorts
Creators: name: Lin, Mengyue
name: Wu, Shiwan
name: Deng, Xiulian
name: Chen, Yequn
name: Tan, Xuerui
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Science Policy

description: To evaluate the association of Chinese visceral adiposity index (CVAI) and its dynamic trends with risk of renal damage, and to compare its prediction performance with that of other obesity indices. A community-based population with 23 905 participants from Shantou city was included in the cross-sectional analysis. A total of 9,778 individuals from two separated cohort were included in the longitudinal portion. Five patterns of CVAI change were predefined (low-stable, decreasing, moderate, increasing, and persistent-high). Logistic and Cox regressions were used to evaluate the association between CVAI and renal damage. We explored potential mechanisms using the mediating effect method, and the prediction performance was determined by receiver operating characteristic curve analysis. Results from both cross-sectional and longitudinal data revealed a positive and linear association between CVAI and risk of renal damage. Pooled analysis of the two cohorts showed that per unit increase in Z score of CVAI induced 18% increased risk of renal damage (P = .008). Longitudinal trends of CVAI were also associated with renal damage, and the moderate, increasing, and persistent-high patterns showing a higher risk. Blood pressure and glucose had a mediating effect on renal damage induced by CVAI. Among several obesity indices, CVAI was the optimal for predicting renal damage. A higher level of immediate CVAI and longitudinal increasing and persistent-high patterns of CVAI were independently associated with increased risk of renal damage. Monitoring immediate level and long-term trend of CVAI may contribute to the prevention of renal damage.
Assessing water use in energy systems: Towards a definition of a water-equivalent footprint (H2Of)
Creators: name: Goto, Sara Kiyomi
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Environmental Sciences

description: Efforts to transform energy systems have focused on reducing greenhouse gas (GHG) emissions, yet the energy systems technologies may also have major impacts on water resources. This thesis reports on a meta-analysis of life cycle assessment studies for both GHG emissions and water uses associated with the production of electricity and transportation fuels. The water use of various energy pathways were classified by type and assigned an impact factor (IF) to ‘weigh’ the environmental cost or benefit of water use assuming regional differences in water availability. This allowed the calculation of a ‘water equivalent’ footprint (H2Of) associated with energy pathways that could be used with CO2 equivalents (CO2e) to assess the larger environmental footprint implications of energy systems choices to include both GHG and water use perspectives. With stakeholder input on IF values for a given region, calculations of H2Of should provide a useful tool for informing energy systems choices.
Maintaining “the Family” During Deployment: Presence Work by Military Families
Creators: name: Atwood, Kristin
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Individual and Family Studies
subject: military families
subject: deployment
subject: communications technology
subject: emotion work
subject: presence

description: Studies of military families show growing concern about how deployments affect them. Recent scholarship proposed that new communications technology will make it easier for families to cope, but also suggests this might blur the lines between work and home for military members. This literature lacks focus on the lived experiences of military families. The aim of this research was to address this gap by examining what families actually do to communicate during separations, orienting to the concept of “emotion work” wherein maintaining intimacy is an accomplishment requiring effort. I conducted qualitative, semi-structured interviews with 47 military and family members, and service providers who worked with military families, to explore how military families endeavor to create presence during separation; how the military features in families’ explanations of presence work; what the capacities and limitations of available technologies for creating presence work; and what the implications of presence work were for military members’ roles in families. Participants’ narratives showed differences in the availability of technologies and their accessibility during deployment, which affected families’ ability to create presence during separations. They drew on a number of strategies to accomplish presence, including work undertaken during interaction and work on the self in the form of emotion management. While participants reported that the deployed military member was still “part of the family”, military members were unable to participate regularly in the household’s activities. The most salient challenges were regarding the military’s institutional demands. Military members’ service requirements made them unavailable for communication; bases lacked infrastructure to enable members to use a broad range of technologies; and policy restricted what could be said and when. In response to this institutional “greediness”, families emphasized their personal responsibility to adapt, rather than expressing a desire for structural changes. I conclude that the military’s intrusion into family life results in families undertaking additional emotional labour, including presence work, in order to maintain a sense of connectedness during deployments, where the demands on military members’ resources are particularly high.
Assessment of waste rock weathering characteristics at the Antamina mine based on field cells experiment
Creators: name: Aranda Clemente, Celeldonio
Publisher: name: University of British Columbia
Year: 2010

description: The weathering behaviour of waste rock is being evaluated using field cell experiments at the Antamina Mine. The results presented here are a component of a larger study that is being conducted in Antamina, whose objective is to understand the geochemical and hydrological behaviour exhibited by different waste rock types, and their potential operational and post-closure impacts on the environment, in order to identify and implement prevention/mitigation measures. The waste rock is currently classified into three classes based on metal (zinc, arsenic) and sulfide contents: reactive (A), slightly reactive (B), and non-reactive (C). This thesis presents the analysis only of Class B marble and hornfels material. Particle size was measured through the standard sieving method and Elutriation techniques, and surface area through geometrical estimation and the BET methods. The data gathered was correlated with chemical assay results and complemented with the mineralogical and mineral availability for leaching data obtained using a Mineral Liberation Analyzer. Minerals containing copper, lead, and zinc, and all sulfide minerals were examined. Seven field kinetic cells were installed with samples having particles of less than 10 cm in diameter. Metal leaching, elemental production rates and release rate trends from two years of data are presented. The relationship between mineral availability and field cells drainage data was investigated. A refined waste rock classification system for Class B was recommended including the incorporation of lithology, mineralogy, mineral availability for leaching, and sulfur-sulfide content. The diopside marble samples were found to be coarser than the black marble and gray hornfels samples. Large surface were reported in the black marble, this was because a relatively higher proportion of clay minerals were found in this sample. Acid-base accounting testing reported that all samples were non-acid generating. However, Cu, Pb, Zn, and Sb were reported in higher concentrations in the leachate from the field cells. Solid phase concentrations of these elements were found to increase as the size fractions decreased, but in two diopside samples, Cu, Pb and Zn minerals were available for leaching in high proportion from the coarse particles. The main sources of these elements were chalcopyrite, galena, and sphalerite.
TB or not TB: impact of an interactive educational tuberculosis (TB) module on occupational health professionals (OHP)
Creators: name: Estrella, Marleni
Publisher: name: No Publisher Supplied
Year: 2020

description: Purpose of Project: Tuberculosis (TB), both curable and preventable, remains one of the deadliest infectious diseases in the world (CDC, 2019). Occupational health professionals (OHP) can play a pivotal role in TB eradication because they work with one of the highest-risk groups for Latent Tuberculosis Infection and TB, healthcare workers (HCW), who take care of a high-risk patient or have unguarded exposure to a patient with TB before the proper precautions have been initiated (Stewart & Tsang, 2016). In May 2019, the CDC published an updated TB guideline for healthcare personnel. The purpose of this project is to ensure OHP are utilizing the most current TB clinical guidelines to identify, screen accurately, and treat employees at the highest risk of developing active TB disease. Methodology: An interactive TB educational module to measure: 1) TB knowledge, 2) intent to change practice, 3) identification of barriers and 4) implementation of recommendations.Results: Due to the low response rate (3%), statistical analysis of data could not be conducted. Descriptive analysis revealed: 1) 31% increase in TB knowledge, 2) 100% of participants were neutral in their intention to implement these new guidelines and strongly agreed on the use and benefit to do so, and 3) 50% did not feel confident in implementing the guidelines due to systemic barriers.Implications for Practice: An interactive educational module can be useful in disseminating new clinical guidelines, but further studies need to be conducted to address barriers in implementing them into practice.