cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A comparative analysis of accessibility measures by the two-step floating catchment area (2SFCA) method
Creators: name: Chen, Xiang
name: Jia, Pengfei
Publisher: name: Taylor & Francis
Year: 2019
Subjects: Biophysics
Cell Biology
Biotechnology
Environmental Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Developmental Biology

description: The recent decade has witnessed a new wave of development in the place-based accessibility theory, revolving around the two-step floating catchment area (2SFCA) method. The 2SFCA method, initially serving to evaluate the spatial inequity of health care services, has been further applied to other urban planning and facility access issues. Among these applications, different distance decay functions have been incorporated in the thread of model development, but their applicability and limitations have not been thoroughly examined. To this end, the paper has employed a place-based accessibility framework to compare the performance of twenty-four 2SFCA models in a comprehensive manner. Two important conclusions are drawn from this analysis: on a small analysis scale (e.g., community level), the catchment size is the most critical model component; on a large analysis scale (e.g., statewide), the distance decay function is of elevated importance. In sum, this comparative analysis provides the theoretical support necessary to the choice of the catchment size and the distance decay function in the 2SFCA method. Justification of model parameters through empirical evidence (e.g., field surveys about local travel activities) and model validation through sensitivity analysis are needed in future 2SFCA applications for various urban planning, service delivery, and spatial equity scenarios.
Phase Migration of Carbon Nanotubes in Melt-Mixed Immiscible Polymer Blend Nanocomposites
Creators: name: Lencar, Calin Constantin
Publisher: name: Schulich School of Engineering
Year: 2022
Subjects: subject: Polymer blend nanocomposites
subject: EMI shielding
subject: Polyethylene
subject: Electrical conductivity
subject: Carbon nanotubes
subject: Chemistry--Polymer
subject: Engineering--Electronics and Electrical
subject: Materials Science
subject: Plastics Technology

description: The growing demand for inexpensive and sophisticated electronics (e.g., sensors, medical devices, electromagnetic interference shields, etc.), has led to a need to develop robust commodity materials. Though metals have traditionally been used in electrical applications, polymer blend nanocomposites (PBNs) offer numerous benefits over metals, making them strong candidates for use as conductive materials. PBNs are typically immiscible and possess a phase-separated structure, which can have a significant impact on the final properties of the material. The main limitation facing the widespread application of polymer nanocomposites (PNCs) is the difficulty if effectively dispersing conductive nanofillers within polymeric systems. Multiwalled carbon nanotubes (MWCNTs) are a high aspect ratio nanoparticle with exceptional conductivity, thermal resistance, and tensile properties. and the dispersion of MWCNTs within polymeric systems is needed to achieve improvements in electrical and mechanical properties. In this thesis, the final localization of MWCNTs within immiscible polymer blends prepared via melt-compounding was tuned by controlling the migration of MWCNTs from one polymer phase to another. The goal was to achieve localization of MWCNTs at the polymer/polymer interface, and thereby greatly reducing the percolation threshold for MWCNTs within the PBN system. Two systems were studied to better understand the migration of MWCNTs within polymer blends: 1) effect of blend composition and mixing time on polyvinylidene difluoride/polyethylene (PVDF/PE) blends containing 2vol% MWCNTs, and 2) effect of MWCNT concentration and mixing time on co-continuous 40:60 blends of polyethylene oxide (PEO)/PE. Light microscopy (LM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were used to study the blend morphology and MWCNT localization at the end of mixing. In both systems, MWCNTs were pre-localized in the PE phase, and migrated towards either PVDF or PEO with during subsequent melt-mixing, due to MWCNTs higher thermodynamic affinity for PVDF and PEO over PE. The premixing of MWCNTs within PE and their subsequent melt-mixing with the second polymer phase resulted in significantly different results between either study.
High Latitude Ionospheric Temperature Characterization Through Simulation-Assisted Calibration of the Mini Plasma Imager
Creators: name: Zuber, Sam
Publisher: name: Science
Year: 2022
Subjects: subject: Space Physics
subject: Ionosphere
subject: Plasma Physics
subject: VISIONS-2
subject: Physics

description: The high latitude region of Earth's atmosphere is a large and tremendously complex dynamical environment that acts as an intermediary between the plasma of interplanetary space and the terrestrial environment. The difficulties in measurement, analysis, and characterization of this region (particularly at altitudes below 800 km) are immense. Technological and geophysical challenges to probe the region have left ion temperature values systematically under-reported despite their fundamental importance to the description of plasma behaviour and atmospheric structure. The Mini Plasma Imager (MPI) is a next generation plasma diagnostic instrument developed to quench this measurement gap. The first iteration of the MPI flew onboard the VISualizing Ions Via Neutral Atom Sensing - 2 (VISIONS-2) sounding rocket mission that launched into the high latitude ionosphere from Svalbard on December 7th, 2018. This thesis investigates the observations recorded by the MPI and presents findings on its ability to accurately record ion temperatures. We process VISIONS-2 MPI flight data to remove systematic noise and reconstruct two-dimensional ion distributions of the cleaned data. We analyze these distributions and two measurements techniques are explored, allowing for the use of Monte-Carlo simulation-assisted instrument calibration to recover ion temperatures from flight data. The first technique fails to provide a robust ion temperature estimate for the MPIs. Using the second technique we demonstrate MPI sensitivity to ionospheric ion temperatures at altitudes between 100 km and 400 km. We observe real ion temperature enhancements with significant heating occurring between 360 km and 370 km. Empirical modelling suggests that the MPI may be systematically over-estimating ion temperature, however, the extent of this over-estimation is uncertain due to instrumental effects. Future research to mitigate both instrumental effects and analysis shortfalls are outlined. We conclude that if a more robust data analysis pipeline is developed, the MPI appears to be capable of providing reliable temperature data and establishing itself as a plasma instrument of significant scientific utility for ongoing and future ionospheric research.
Materiality and the discourse of science
Creators: name: Cwiartka, Monika
Publisher: name: University of British Columbia
Year: 2012

description: This dissertation examines the relations between scientific work as it is performed at the benchtop and scientific work as it is represented in scientific prose, where “scientific prose” is defined broadly as instances of communication which point to the methods and objects of scientific research. The idea I expand upon is that scientists have historically been embodied knowers, moving through a physical context involving research objects, and that some forms of scientific communication have evolved to convey this material relation of scientists and their objects of study. Using concepts from phenomenology, such as intentionality, and Kenneth Burke’s theory of Dramatism, I develop and apply an “action-attention-language” triad model for examining how references to actions on research objects are represented. With this triad model as a heuristic tool, I examine various cases of representation in science. I look at experimental papers which attempt to introduce an apparatus into the community; the use of mice as research apparatus in neurobehavioral genetics; advertisements for research products placed in the journal Science; and two instances of what can be called “cyberscience”: websites selling research mice and services, and research involving “virtual” mice. The chapters of this dissertation progressively problematize the relation of physical and linguistic practices. In experimental papers describing an apparatus, the style of reporting tends to portray a direct correspondence between physical and linguistic research practices; when mice become research apparatus, language is both constrained by the mouse body and also used to surpass material limitations; advertisements for research products point to the automation of apparatus and the division of research work between those performing the experiments and those writing about experimentation. Furthermore, I observe that the digitization of research allows researchers to access mice and research services over the internet, while virtual biosimulations ask researchers to infer and describe material processes from digital representations. The contribution of this dissertation to knowledge in Science and Technology Studies is primarily evidential, as I attempt to show the relationships and transformations in research work which others have pointed at, but often in broad terms which call for further substantiation through specific textual examples.
Generalised geometry, eleven dimensions and E11
Creators: name: West, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct the non-linear realisation of E11 and its first fundamental representation in eleven dimensions at low levels. The fields depend on the usual coordinates of space-time as well as two form and five form coordinates. We derive the terms in the dynamics that contain the three form and six form fields and show that when we restricted their field dependence to be only on the usual space-time we recover the correct self-duality relation. Should this result generalise to the gravity fields then the non-linear realisation is an extension of the maximal supergravity theory, as previously conjectured. We also comment on the connections between the different approaches to generalised geometry.
description: 17 pages, Trivial typos corrected in version one and a substantial note added which gives the equation of motion relating the gravity field to its dual
McKay correspondence, cohomological Hall algebras and categorification
Creators: name: Diaconescu, Duiliu-Emanuel
name: Porta, Mauro
name: Sala, Francesco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 14A20 (Primary), 17B37, 55P99 (Secondary)

description: Let $π\colon Y\to X$ denote the canonical resolution of the two dimensional Kleinian singularity $X$ of type ADE. In the present paper, we establish isomorphisms between the cohomological and K-theoretical Hall algebras of $ω$-semistable properly supported sheaves on $Y$ with fixed slope $μ$ and $ζ$-semistable finite-dimensional representations of the preprojective algebra of affine type ADE of slope zero respectively, under some conditions on $ζ$ depending on the polarization $ω$ and $μ$. These isomorphisms are induced by the derived McKay correspondence. In addition, they are interpreted as decategorified versions of a monoidal equivalence between the corresponding categorified Hall algebras. In the type A case, we provide finer descriptions of the cohomological, K-theoretical and categorified Hall algebra of $ω$-semistable properly supported sheaves on $Y$ with fixed slope $μ$: for example, in the cohomological case, the algebra can be given in terms of Yangians of finite type ADE Dynkin diagrams.
description: v2: 34 pages, Published version, main results hold for minimal resolutions of arbitrary ADE singularities. v1: 35 pages
ถอดบทเรียนจ้างงานและบริหารทรัพยากรมนุษย์ของญี่ปุ่น ยุคสูงวัยระดับสุดยอด
Creators: name: รัชนี มุขแจ้ง
Publisher: name: คณะบริหารธุรกิจ เศรษฐศาสตร์และการสื่อสาร มหาวิทยาลัยนเรศวร
Year: 2561
Subjects: บริหารทรัพยากรมนุษย์
ยุคสูงวัย

description: วารสารบริหารธุรกิจ เศรษฐศาสตร์และการสื่อสาร, 13, 1, 185-187
Absence of p21 Expression Sensitizes iPSCs to iCaspase9 Induced Apoptosis While Not Impacting Ability to Participate in Exogenous Cartilage Repair
Creators: name: Larijani, Leila
Publisher: name: Cumming School of Medicine
Year: 2022
Subjects: subject: iPSC
subject: iCaspas9
subject: Suicide gene
subject: Chondrogenesis
subject: Cartilage
subject: Drug screening
subject: Epigenetics
subject: Biology--Cell
subject: Genetics
subject: FOS: Biological sciences
subject: Biology--Molecular

description: p21 is a multifunctional protein that is critical to the control cellular proliferation and plays a number of other functions in the cell. In the nucleus, p21 functions as a tumour suppressor, while in the cytoplasm, phosphorylated p21 functions as a proto-oncogene and can also suppress apoptosis. Because p21 deficiency has been linked to increased tissue regeneration, in this thesis, I sought to investigate if p21 mutations can improve the regenerative capacity of induced pluripotent stem cells in a cellular therapy approach for cartilage injuries in mice. However, because p21 is a tumor suppressor and its loss can result in tumorigenesis, I employed the inducible Caspase9 cell suicide system to purge iPSCs through forced apoptosis. In vitro, iCaspase9-mediated cell death resulted in a statistically significant increase in the apoptosis rate in p21-/- iPSCs compared to p21+/+ iPSCs (wild-type). RNA sequencing was undertaken to determine which pathways are involved in p21 mediated apoptosis. Increased expression of 41 apoptotic and 6 healing-related genes were observed in p21-/- iPSCs compared to wildtype. In vitro chondrogenesis of p21-/- iPSCs showed an increase in chondrogenic genes relative to the wild-type cells. When these iPSCs were transplanted into a focal cartilage injury in mice, ectopic cartilage formation was observed. Neither tumors, nor ectopic cartilage formation was observed in mice that were treated with CID drug to induce iCasp9 mediated apoptosis. Finally, I performed a drug screen to discover compounds that promote apoptosis with iCasp9. In addition to identifying several epigenetic drugs that promoted iCasp9 function in vitro, I also demonstrated that p21 inhibitors could phenocopy the enhanced iCasp9 mediate cell killing seen previously in the p21 mutant iPSCs. Overall, my findings indicate that p21 does play a role in protecting iPSCs from apoptosis and its downregulation can be exploited to increase cell-suicide approach effectiveness. I was also able to demonstrate that iPSCs can induce robust cartilage repair in mice regardless of the expression of p21. Therefore, modulation of p21 warrants further research to determine if exploiting this protein can be used in iPSC clinical trials safely in the future.
Parancistrocerus samarensis
Creators: name: Gusenleitner, J.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Eumenidae
Parancistrocerus
Parancistrocerus samarensis

description: Parancistrocerus samarensis (von SCHULTHESS 1934) M a t e r i a l: Laos: Louangnamtha Prov., Namtha Muang Sing., 21°09’N 101°19’E, 900-1200m, 3.- 31.5.199 7, 1, 1; Phongsaly Prov., Phongsaly env., 21°41’N 102°6-8’E, - 1500m, 28.5.- 20.6.200 3, 3, alle leg. Vit. Kubà. Nach GIORDANI SOIKA 1994 wurde diese Art bisher nur aus den Philippinen und aus Taiwan bekannt. Die oben angeführten Funde sind die ersten auf dem asiatischen Festland.
description: Published as part of Gusenleitner, J., 2010, Bemerkenswerte Faltenwespen-Funde aus der orientalischen Region Teil 5 (Hymenoptera: Vespidae, Eumeninae), pp. 695-709 in Linzer biologische Beiträge 42 (1) on pages 695-696, DOI: 10.5281/zenodo.5332882
description: {"references": ["GIORDANI SOIKA A. (1994): Ricerche sistematiche su alcuni generi di Eumenidi della regione Orientale e della Papuasia. (Hymenoptera, Vespoidea). - Annali del Mus. St. Nat \" G. Doria \" 90: 1 - 348."]}
Serendipitous Synthesis of Sulfur and Selenium-Containing Macrocycles and Their Application as GPx Mimetics
Creators: name: McMillan, Jacob Daniel Roy
Publisher: name: Science
Year: 2022
Subjects: subject: Selenium
subject: Sulfur
subject: GPx Mimetics
subject: Antioxidants
subject: Chemistry--Organic

description: Glutathione peroxidase, or GPx, is a selenocysteine based enzyme whose role is to prevent oxidative stress in mammalian cells by catalytically reducing harmful hydrogen peroxide and hydroperoxides, to water or their corresponding alcohols, respectively. This process simultaneously results in the oxidation of glutathione, a naturally abundant thiol, to glutathione disulfide. While GPx generally works well at preventing oxidative stress, there are certain circumstances where GPx can become overwhelmed, such as during reperfusion after a heart attack or stroke, that can result in excessive oxidative stress. Therefore, there is interest in the development of small molecule selenium compounds that could act as mimetics of GPx and aid it in the reduction of harmful peroxides. Spirodioxyselenuranes have been reported to be particularly effective GPx mimetics and analogues that contain heteroatoms other than oxygen are also of interest. During attempts to prepare spirodithiaselenuranes, which would be a novel class of compounds, a series of macrocyclic dimers containing both selenide and disulfide moieties was obtained instead. Chapter two describes attempts toward the synthesis of spirodithiaselenuranes and the characterization of the isolated macrocyclic species. Based on these results, the remainder of chapter two describes the synthesis of a range of these macrocyclic dimers. Chapter three focuses on the application of these dimers as GPx mimetics and the assays used to measure their activity. During this study a surprising induction period in the catalysis was observed which was determined to be due to autocatalysis by the oxidized macrocycle.
Evolutionary computation between Genetic Algorithm and Particle Swarm Optimization
Creators: name: สุภกิจ นุตยะสกุล
Publisher: name: Faculty of Information Science and Technology, Mahanakorn University of Technology
Year: 2011
Subjects: Evolutionary Computation
Genetic algorithm
Particle swarm optimization

description: Journal of Information Science and Technology, 2, 2, 13-22
Multi-turn Response Selection using Dialogue Dependency Relations
Creators: name: Jia, Qi
name: Liu, Yizhu
name: Ren, Siyu
name: Zhu, Kenny Q.
name: Tang, Haifeng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Multi-turn response selection is a task designed for developing dialogue agents. The performance on this task has a remarkable improvement with pre-trained language models. However, these models simply concatenate the turns in dialogue history as the input and largely ignore the dependencies between the turns. In this paper, we propose a dialogue extraction algorithm to transform a dialogue history into threads based on their dependency relations. Each thread can be regarded as a self-contained sub-dialogue. We also propose Thread-Encoder model to encode threads and candidates into compact representations by pre-trained Transformers and finally get the matching score through an attention layer. The experiments show that dependency relations are helpful for dialogue context understanding, and our model outperforms the state-of-the-art baselines on both DSTC7 and DSTC8*, with competitive results on UbuntuV2.
description: Accepted for publication as a long paper in EMNLP2020
Adsorption and separation behavior of Pd(II) from simulated high-level liquid waste using N,N,N’,N’-tetra-2-ethylhexyl-thiodiglycolamide silica-based adsorbent
Creators: name: Osawa, Naoki
name: Kubota, Masahiko
name: Wu, Hao
name: Kim, Seong-Yun
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Space Science
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: To efficiently separate Pd(II) from high-level liquid waste (HLLW), a (TEHTDGA + dodecanol)/SiO2-P silica-based adsorbent (TEHTDGA resin) was synthesized by impregnating SiO2-P particles with N,N,N’,N’-tetra-2-ethylhexyl-thiodiglycolamide (TEHTDGA) and dodecanol. Our experimental results indicate that TEHTDGA resin exhibits high distribution coefficients for Pd(II) at HNO3 concentrations from 0.1 M to 5.0 M. The adsorption behavior of Pd(II) was found to quickly reach an equilibrium state, with a nearly 100% uptake ratio. Based on adsorption isotherm analyses, the experimental results for Pd(II) fit well with the Langmuir isotherm model. TEHTDGA resin was also confirmed to exhibit high adsorption capacity for Pd(II). The adsorption behavior of Pd(II) was hardly affected by temperature. In an evaluation of the amount of leaked sulfur, TEHTDGA resin demonstrated good chemical stability. The results of a chromatography separation experiment indicate that almost all the Pd(II) could be successfully separated and recovered from simulated HLLW using 0.1 M thiourea in 0.01 M HNO3 solution as an eluent.
Layout, Equipment, and Work Methods for School Lunch Kitchens and Serving Lines
Creators: name: Biedermann, Konrad
name: Wilhelmy, O.
name: Dull, M. R.
name: Bouma, John C.
name: Biedermann, Konrad
name: Wilhelmy, O.
name: Dull, M. R.
name: Bouma, John C.
Publisher: name: Unknown
Year: 1966
Subjects: Labor and Human Capital
Production Economics
Research and Development/Tech Change/Emerging Technologies
Research Methods/ Statistical Methods

description: Excerpts from the report: With the continued growth of the school lunch program the need for information to help the management of school lunch operations, in addition to that published on the storage of food and the planning and equipping of lunchrooms, became apparent. This study was initiated in 1963 in cooperation with the School Lunch Division, Consumer and Marketing Service, to develop standards of labor utilization and guides for planning or remodeling kitchens and lunchrooms in schools with kitchens on the premises. Material presented in this report was developed under contract by Battelle Memorial Institute. Mr. Wade D. Bash, Chief, School Lunch Program, Ohio State Department of Education, assisted in the selection of school lunch operations to be studied and counseled the contractor throughout the study.
Automated Building Extraction from Remote Sensing Imagery Using Deep Learning
Creators: name: Yan, Hailun
Publisher: name: Schulich School of Engineering
Year: 2022
Subjects: subject: deep learning
subject: end-to-end
subject: building footprint extraction
subject: remote sensing imagery
subject: automatic
subject: Artificial Intelligence
subject: Engineering--Automotive
subject: Engineering--Civil
subject: Engineering--Industrial

description: Automatically extracting high-quality building-footprint polygons from satellite and aerial images is crucial for supporting various land use and land cover mapping applications. The conventional building polygon extraction process requires hand-crafted features and high human intervention, which is time-consuming and often has limited generalization capability. In recent years, deep learning-based methods have shed light on the problem with higher levels of automation, segmentation quality, and generalization capability. These methods often involve two stages: first, building segmentations are predicted from remote sensing images using deep neural networks; next, the irregular-shaped building segmentations are regularized into straight-edged and right-angle-cornered building polygons using conventional or deep learning-based methods. As a result, the extraction performance is often highly affected by the quality of the segmentation predictions. However, from experiments, the current widely used segmentation DNNs show significant defects in their building segmentation results, especially for the buildings with rotated angles between the building edges and the image edges. Moreover, although DNN-based regularization methods have shown greater generalization potentials at regularizing buildings in various shapes compared to the conventional regularization methods, the qualities of the regularization results are generally dissatisfactory. This thesis proposes an end-to-end deep learning-based building extraction method based on PolygonCNN. The proposed model consists of a segmentation module to predict building segmentations and a regularization module to regularize the building contours traced from the building segmentation results. First, an upgraded Mask R-CNN model, which is integrated with the rotatable bounding box technique, the Swin Transformer backbone network, and the FPN module, is adopted as the segmentation module of the proposed model to segment buildings in vastly different scales and orientations. Moreover, the Feature Pooling module and the BRegNet of the original PolygonCNN are modified to exploit the multi-scale feature maps of the FPN module. As a result, the proposed model can effectively extract high-quality building polygons with various scales and orientations and has shown promising performance compared to several other popular end-to-end deep-learning-based building extraction models. In addition, the thesis provides supplemental architecture choices, which offer flexibility between the quality of the building extraction result and the memory consumption of the model.
The Essential Norm of Operators on $A^p_α(\mathbb{B}_n)$
Creators: name: Mitkovski, Mishko
name: Suárez, Daniel
name: Wick, Brett D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: In this paper we characterize the compact operators on $A^p_α(\mathbb{B}_n)$ when $1-1$. The main result shows that an operator on $A^p_α(\mathbb{B}_n)$ is compact if and only if it belongs to the Toeplitz algebra and its Berezin transform vanishes on the boundary of the ball.
description: v1: 32 pages; v2: 32 pages, typos corrected; v3: 32 pages, typos corrected, presentation improved based on referee comments
Mathematical Mechanism on Dynamical System Algorithms of the Ising Model
Creators: name: Liu, Bowen
name: Wang, Kaizhi
name: Xiao, Dongmei
name: Yu, Zhan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Classical Analysis and ODEs (math.CA)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 90C27, 68W40, 58E05, 70F15

description: Various combinatorial optimization NP-hard problems can be reduced to finding the minimizer of an Ising model, which is a discrete mathematical model. It is an intellectual challenge to develop some mathematical tools or algorithms for solving the Ising model. Over the past decades, some continuous approaches or algorithms have been proposed from physical, mathematical or computational views for optimizing the Ising model such as quantum annealing, the coherent Ising machine, simulated annealing, adiabatic Hamiltonian systems, etc.. However, the mathematical principle of these algorithms is far from being understood. In this paper, we reveal the mathematical mechanism of dynamical system algorithms for the Ising model by Morse theory and variational methods. We prove that the dynamical system algorithms can be designed to minimize a continuous function whose local minimum points give all the candidates of the Ising model and the global minimum gives the minimizer of Ising problem. Using this mathematical mechanism, we can easily understand several dynamical system algorithms of the Ising model such as the coherent Ising machine, the Kerr-nonlinear parametric oscillators and the simulated bifurcation algorithm. Furthermore, motivated by the works of C. Conley, we study transit and capture properties of the simulated bifurcation algorithm to explain its convergence by the low energy transit and capture in celestial mechanics. A detailed discussion on $2$-spin and $3$-spin Ising models is presented as application.
description: 39 pages, 2 figures(including 8 sub-figures)
Resiliency Among Immigrant Women in the Public Sector
Creators: name: Stawnychko, Leda
Publisher: name: Werklund School of Education
Year: 2021
Subjects: Women in Leadership
Resilience
Public Sector
Leadership

description: Video available at: https://www.youtube.com/watch?v=HfLIdfVTsos
description: Presenter at the 2021 Women Leaders Speaker Series. Women’s Resource Centre. University of Calgary. Calgary, Alberta.
The production of the world city : extractive industries in a global urban economy
Creators: name: Surborg, Björn
Publisher: name: University of British Columbia
Year: 2012

description: This dissertation argues for a re-grounding of world city research in world-systems and dependency theory. It proposes to conduct 'vertical world city research', which explicitly investigates the spatial interconnectedness between world cities and peripheral locations of production, rather than focus on the relationships between different world cities. The idea of vertical world city research is partly a response to recent post-colonial critiques of world city research. Advanced Producer Services (APS) have long been considered command and control functions over global capital. Constructions of world city networks have largely relied on data based on large APS firms. While this research has made important contributions to our understanding of the interconnectedness of world cities, the argument of this dissertation is that it may not adequately capture the role of other essential sectors in the global economy. It is proposed that world city research needs to investigate the global control networks over monopolistically (or more correctly oligopolistically) organised processes. The focus of this dissertation is therefore the urban control network of the monopoly over natural resources. The dissertation investigates the locations of ownership control over the world's ten largest non-fuel mineral producers. These ten firms account for more than one third of the world's non-fuel mineral production by value. It also investigates specifically the platinum industry, which is controlled by a very small number of firms. While cities that are often identified as world cities, including New York and London, feature in the lists of cities that host the owners of the global mining industry and the platinum industry in particular, a number of cities in middle income economies are at the top of the list. The last part of the dissertation focuses on the role of nation states in the formation of global cities and how corporate decisions are administered through a network of cities. The effect of these decisions on mining communities is explicitly studied. This part focuses on Johannesburg and South Africa. The research suggests that the spatial organisation of the world economy and the concentration of power is more dispersed than previously suggested.
Learning with risks based on M-location
Creators: name: Holland, Matthew J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In this work, we study a new class of risks defined in terms of the location and deviation of the loss distribution, generalizing far beyond classical mean-variance risk functions. The class is easily implemented as a wrapper around any smooth loss, it admits finite-sample stationarity guarantees for stochastic gradient methods, it is straightforward to interpret and adjust, with close links to M-estimators of the loss location, and has a salient effect on the test loss distribution.
description: Substantial update to initial version; refined theory, improved exposition, added experimental analysis
Nucleon and Roper electromagnetic elastic and transition form factors
Creators: name: Wilson, D. J.
name: Cloet, I. C.
name: Chang, L.
name: Roberts, C. D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We compute nucleon and Roper e.m. elastic and transition form factors using a symmetry-preserving treatment of a contact-interaction. Obtained thereby, the e.m. interactions of baryons are typically described by hard form factors. In contrasting this behaviour with that produced by a momentum-dependent interaction, one achieves comparisons which highlight that elastic scattering and resonance electroproduction experiments probe the infrared evolution of QCD's running masses; e.g., the existence, and location if so, of a zero in the ratio of nucleon Sachs form factors are strongly influenced by the running of the dressed-quark mass. In our description of baryons, diquark correlations are important. These correlations are instrumental in producing a zero in the Dirac form factor of the proton's d-quark; and in determining d_v/u_v(x=1), as we show via a formula that expresses d_v/u_v(x=1) in terms of the nucleon's diquark content. The contact interaction produces a first excitation of the nucleon that is constituted predominantly from axial-vector diquark correlations. This impacts greatly on the gamma*p->P_{11}(1440) form factors. Notably, our quark core contribution to F_2*(Q^2) exhibits a zero at Q^2~0.5mN^2. Faddeev equation treatments of a hadron's quark core usually underestimate its magnetic properties, hence we consider the effect produced by a dressed-quark anomalous e.m. moment. Its inclusion much improves agreement with experiment. On the domain 0
description: 23 pages, 14 figures
Observing a Changing Hilbert-Space Inner Product
Creators: name: Karuvade, Salini
name: Alase, Abhijeet
name: Sanders, Barry C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In quantum mechanics, physical states are represented by rays in Hilbert space $\mathscr H$, which is a vector space imbued by an inner product $\langle\,|\,\rangle$, whose physical meaning arises as the overlap $\langleϕ|ψ\rangle$ for $|ψ\rangle$ a pure state (description of preparation) and $\langleϕ|$ a projective measurement. However, current quantum theory does not formally address the consequences of a changing inner product during the interval between preparation and measurement. We establish a theoretical framework for such a changing inner product, which we show is consistent with standard quantum mechanics. Furthermore, we show that this change is described by a quantum channel, which is tomographically observable, and we elucidate how our result is strongly related to the exploding topic of PT-symmetric quantum mechanics. We explain how to realize experimentally a changing inner product for a qubit in terms of a qutrit protocol with a unitary channel.
description: 12 pages, 4 figures, updated version includes an erratum
ESSAYS IN STRATEGIC COMMUNICATION AND INFORMATION DESIGN
Creators: name: Zhou, Junya
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Experimental economics
Behavioural economics
Microeconomic theory

description: This study examines several emerging topics in strategic communication and information design. The first chapter studies the role of verification in persuasion and its interaction with commitment in a Bayesian persuasion framework in which the sender is not fully bound by the committed plan. Both theoretically and experimentally, we demonstrate that making verification easier can significantly improve information transmission when commitment is low, but its effect is limited when commitment is high. However, empirically receivers do not respond as strongly as predicted by theory, which is consistent with base-rate neglect and conservatism. On the other hand, senders generally anticipate receivers' actions and best respond to the empirical behavior of receivers. We provide empirical implications for cases where verification is instrumental in improving information transmission and where it is not.
 The second and third chapters are based on joint work with Dr. Collin Raymond. In the second chapter, we investigate how increasing the complexity of the message space in the presence of limited memory can reduce misrepresentation in strategic communication. We enrich a standard cheap talk game so that senders must communicate not just a payoff-relevant state, but also payoff-irrelevant attributes correlated with the state. We show that increasing the set of attributes that may need to be reported (i.e., the complexity of the game) improves the amount of information transmitted in equilibrium. Our findings demonstrate that the reporting of redundant information may induce equilibria that feature improved outcomes compared to simpler, more direct reporting systems, and point out the importance of complexity when trying to induce truthful information revelation.
 In the third chapter, we analyze some extensions on the effect of complexity. We present experimental evidence which shows that too much of an increase in complexity leads to a reversal of those gains. Limited memory on the part of players, as well as the relative complexity faced by senders and receivers, drives these changes, and individuals experience cognitive costs when dealing with complex environments that they are willing to pay to avoid.
MOESM2 of Exploring the contributions of two glutamate decarboxylase isozymes in Lactobacillus brevis to acid resistance and γ-aminobutyric acid production
Creators: name: Lyu, Changjiang
name: Zhao, Weirui
name: Peng, Chunlong
name: Hu, Sheng
name: Fang, Hui
name: Hua, Yujiao
name: Yao, Shanjing
name: Huang, Jun
name: Mei, Lehe
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Cancer
subject: Mental Health
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: Additional file 2. Figure S2. (A), Transcription of gadR is independent from the gadCB operon. PCR results using gad-F1 and gad-R1 as primers. The expected band (~ 573 bp) was only visible in the lane C. M: DNA marker; A: cDNA as the template. B: mRNA as the template. C: genome DNA as the template. gad-F1: GTCAAACAACAATTGGCATC, gad-R1: CAGCCGATAATGAAATACATC. (B), The gadB is co-transcribed in tandem with the upstream gadC gene. PCR results using gad-F2 and gad-R2 as primers. The expected band (~ 571 bp) was visible only in the lane A. M: DNA marker; A: cDNA as the template B: mRNA as the template. gad-F2: TATCTTGTACCGTTTCCACG, gad-R2: ATACATCCTTCAGAAGAACC.
Orbital polarization and magnetization for independent particles in disordered media
Creators: name: Schulz-Baldes, Hermann
name: Teufel, Stefan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Formulas for the contribution of the conduction electrons to the polarization and magnetization are derived for disordered systems and within a one-particle framework. These results generalize known formulas for Bloch electrons and the presented proofs considerably simplify and strengthen prior justifications. The new formulas show that orbital polarization and magnetization are of geometric nature. This leads to quantization for a periodically driven Piezo effect as well as the derivative of the magnetization w.r.t. the chemical potential. It is also shown how the latter is connected to boundary currents in Chern insulators. The main technical tools in the proofs are an adaption of Nenciu's super-adiabatic theory to C$^*$-dynamical systems and Bellissard's Ito derivatives w.r.t. the magnetic field.
description: Errors and misprints corrected; introduction expanded; to appear in CMP
Rigorous derivation of dark energy and inflation as geometry effects in Covariant Canonical Gauge Gravity
Creators: name: Vasak, David
name: Kirsch, Johannes
name: Struckmeier, Jürgen
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The cosmological implications of the Covariant Canonical Gauge Theory of Gravity (CCGG) are investigated. CCGG is a Palatini theory derived from first principles using the canonical transformation formalism in the covariant Hamiltonian formulation. The Einstein-Hilbert theory is thereby extended by a quadratic Riemann-Cartan term in the Lagrangian. Moreover, the requirement of covariant conservation of the stress-energy tensor leads to necessary presence of torsion. In the Friedman universe that promotes the cosmological constant to a time-dependent function, and gives rise to a geometrical correction with the EOS of dark radiation. The resulting cosmology, compatible with the $Λ$CDM parameter set, encompasses bounce and bang scenarios with graceful exits into the late dark energy era. Testing those scenarios against low-z observations shows that CCGG is a viable theory.
description: Contribution to the International Workshop IWARA on Astronomy and Relativistic Astrophysics, September 2020. Adjusted to Astronomische Nachrichten 2021; 8 pages, 6 figures, small correction added
Public Speaking and Developing Effective Presentations
Creators: name: Stawnychko, Leda
Publisher: name: Community Health Sciences
Year: 2021
Subjects: Presentation Skills
Effective Presentations
Medical Education
Public Speaking
Leadership Development
Communication Skills

description: Guest lecture presented on January 29, 2021 for MDCH 700.71 Professional Development and Experiential Learning students in the Cumming School of Medicine, University of Calgary.
Galactoseismology: Discovery of Vertical Waves in the Galactic Disk
Creators: name: Widrow, Lawrence M.
name: Gardner, Susan
name: Yanny, Brian
name: Dodelson, Scott
name: Chen, Hsin-Yu
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present evidence for a Galactic North-South asymmetry in the number density and bulk velocity of solar neighborhood stars. The number density profile, which is derived from main-sequence stars in the Sloan Digital Sky Survey, shows a (North - South)/(North + South) deficit at |z| ~ 400 pc and an excess at |z| ~ 800 pc. The bulk velocity profile, which is derived from the Sloan Extension for Galactic Understanding and Exploration, shows a gradual trend across the Galactic midplane as well as smaller-scale features. We speculate that the North-South asymmetry, which has the appearance of a wavelike perturbation, is intrinsic to the disk. We explore the physics of this phenomenon through an analysis of the linearized Boltzmann and Poisson equations and through one-dimensional simulations. The perturbation may be excited by the passage of a satellite galaxy or dark matter subhalo through the Galactic disk, in which case we are witnessing a recent disk-heating event.
description: 10 pages, 5 figures, accepted for publication in the Astrophysical Journal Letters
Longest segment of balanced parentheses -- an exercise in program inversion in a segment problem (Functional Pearl)
Creators: name: Mu, Shin-Cheng
name: Chiang, Tsung-Ju
Publisher: name: arXiv
Year: 2021
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Given a string of parentheses, the task is to find the longest consecutive segment that is balanced, in linear time. We find this problem interesting because it involves a combination of techniques: the usual approach for solving segment problems, and a theorem for constructing the inverse of a function -- through which we derive an instance of shift-reduce parsing.
Wang-Landau simulations with non-flat distributions
Creators: name: Schnabel, Stefan
name: Janke, Wolfhard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We show how the well-known Wang-Landau method can be modified to produce non-flat distributions. Through the choice of a suitable profile this can lead to an increase in efficiency for some systems. Examples for such an enhancement are provided.
description: 5 pages, 5 figures
Communications and Conflict Resolution Skills
Creators: name: Stawnychko, Leda
Publisher: name: Werklund School of Education
Year: 2020
Subjects: Conflict Management
Communication Skills
Leadership Development
Professional Development

description: Oral presentation and workshop delivered on October 30, 2020 for MDCH 700.60: Professional Development. MDCH is offered to students in the Department of Community Health Sciences, Cumming School of Medicine of the University of Calgary.
Role of mesonic fluctuations in the Polyakov loop extended quark-meson model at imaginary chemical potential
Creators: name: Morita, Kenji
name: Skokov, Vladimir
name: Friman, Bengt
name: Redlich, Krzysztof
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We explore the thermodynamics and phase structure of the Polyakov loop-extended two flavor chiral quark--meson (PQM) model beyond the mean-field approximation at imaginary chemical potential. Our approach is based on the functional renormalization group (FRG) method. At finite temperature and imaginary chemical potential, we solve the renormalization group flow equation for a scale-dependent thermodynamic potential in the presence of the gluonic background field. We determine behavior of order parameters of the PQM model in the FRG approach and compute the phase diagram. We compare our FRG results with that obtained in the mean-field approximation at imaginary chemical potential.
description: 9 pages, 7 figures, to appear in Phys.Rev.D
A greedy algorithm for dropping digits (Functional Pearl)
Creators: name: Bird, Richard
name: Mu, Shin-Cheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Consider the puzzle: given a number, remove $k$ digits such that the resulting number is as large as possible. Various techniques were employed to derive a linear-time solution to the puzzle: predicate logic was used to justify the structure of a greedy algorithm, a dependently-typed proof assistant was used to give a constructive proof of the greedy condition, and equational reasoning was used to calculate the greedy step as well as the final, linear-time optimisation.