cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Taint-Exchange: A Generic System for Cross-Process and Cross-Host Taint Tracking
Creators: name: Zavou, Angeliki
name: Portokalidis, Georgios
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2011
Subjects: Computer science

description: Dynamic taint analysis (DTA) has been heavily used by security researchers for various tasks, including detecting unknown exploits, analyzing malware, preventing information leaks, and many more. Recently, it has been also utilized to track data across processes and hosts to shed light on the interaction of distributed components, but also for security purposes. This paper presents Taint-Exchange, a generic cross-process and cross-host taint tracking framework. Our goal is to provide researchers with a valuable tool for rapidly developing prototypes that utilize cross-host taint tracking. Taint-Exchange builds on the libdft open source data flow tracking framework for processes, so unlike previous work it does not require extensive maintenance and setup. It intercepts I/O related system calls to transparently multiplex fine-grained taint information into existing communication channels, like sockets and pipes. We evaluate Taint-Exchange using the popular lmbench suite, and show that it incurs only moderate overhead.
Methanol deuteration in high-mass protostars
Creators: name: van Gelder, Martijn
name: Jaspers, Jeroen
name: Nazari, Pooneh
name: Ahmadi, Aida
name: van Dishoeck, Ewine
name: Beltrán, Maite
name: Fuller, Gary
name: Sánchez-Monge, Álvaro
name: Schilke, Peter
Publisher: name: Zenodo
Year: 2023

description: The deuteration of molecules forming in the ices such as methanol (CH3OH) is sensitive to the physical conditions during their formation in dense cold clouds and can be probed through observations of deuterated methanol in hot cores. In this poster, we present methanol D/H ratios derived from ALMA data for a large sample of 99 high-mass protostars and link these to the physical conditions during the formation of methanol in the prestellar phases.
Singly deuterated methanol (CH2DOH) is detected at the 3-sigma level toward 25 of the 99 sources in our sample of high-mass protostars. Including upper limits, the (D/H)_CH3OH ratio inferred from N_CH2DOH/N_CH3OH was derived for 38 of the 99 sources and varies between ~10^−3-10^−2. Including other high-mass hot cores from the literature, the mean methanol D/H ratio is 1.1 ± 0.7 × 10^−3. This is more than one order of magnitude lower than what is seen for low-mass protostellar systems (2.2 ± 1.2 × 10^−2). Doubly deuterated methanol (CHD2OH) is detected at the 3-sigma level toward 11 of the 99 sources. Including upper limits for 15 sources, the (D/H)_CH2DOH ratios derived from N_CHD2OH/N_CH2DOH are more than two orders of magnitude higher than (D/H)_CH3OH with an average of 2.0 ± 0.8 × 10^−1 which is similar to what is found for low-mass sources. Comparison with literature GRAINOBLE models suggests that the high-mass prestellar phases are either warm (>20 K) or live shorter than the free-fall timescale. In contrast, for low-mass protostars, both a low temperature of <15 K and a prestellar phase timescale longer than the free-fall timescale are necessary.
The results of singly deuterated methanol show that high-mass prestellar phases are either warmer or shorter lived than their lower-mass counterpars. However, successive deuteration toward CHD2OH seems equally effective between low-mass and high-mass systems, which raises the need for additional modeling and observational efforts to explain this.
A Win on Marriage for Obama
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2012
Subjects: subject: Political science
subject: FOS: Political science

description: Obama's position on marriage equality changes the policy debate on this issue, probably permanently.  Not only is it good to see that the president supports equality for all Americans, but Obama's statement throws down a challenge for future bigots and enshrines marriage equality as the Democratic position.
Light Curve and orbital period analysis of the eclipsing binary AT Peg
Creators: name: Liakos, Alexios
name: Niarchos, Panagiotis
name: Budding, Edwin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: CCD photometric observations of the Algol-type eclipsing binary AT Peg have been obtained. The light curves are analyzed with modern techniques and new geometric and photometric elements are derived. A new orbital period analysis of the system, based on the most reliable timings of minima found in the literature, is presented and apparent period modulations are discussed with respect to the Light-Time effect (LITE) and secular changes in the system. The results of these analyses are compared and interpreted in order to obtain a coherent view of the system's behaviour.
description: 2 pages, 2 figures, contribution to the conference proceedings: IAU Symposium 282 - From Interacting Binaries to Exoplanets: Essential Modeling Tools, Tatransk\'a Lomnica, Slovakia, 18-22 Jul. 2011
The Embodied Experience and Transformative Learning: Moving Towards a Healthy and Empowered Self
Creators: name: Iafrate, Marco
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: embodied learning
subject: Transformative Learning
subject: physical activity
subject: self-care
subject: Education--Adult and Continuing
subject: Education--Health

description: Using a qualitative single case study methodology, this study explored whether and how individuals find an empowered sense of themselves through their bodies and physical experiences. Five participants underwent 6 weeks of physical activity, with each week focusing on a different aspect of self-care. Research data were gathered through pre- and post-assessments, a 6-week questionnaire, and semi-structured interviews. Five themes emerged for the first sub-question (“What enhances or promotes embodied learning, which can then help one find an empowered sense of self?”): (a) curiosity and a willingness to learn, (b) reflection, (c) examination for personal improvement, (d) support, and (e) character strengths. Four qualities were found from the analysis of the second sub-question (“What role does the human body serve in transformational learning?”): (a) thoughtfulness, (b) personal acknowledgement, (c) health and wholeness, and (d) the affirmation of oneself. The participants’ experiences suggest that their engagement in the study had a positive impact on self-care, sense of self, and perspective change. The results provide insights for ongoing discussion into the role of embodied learning and its connection to overarching themes within transformative learning, which are disorienting dilemmas, reflection, and discourse. These findings contribute to the growing body of research in transformational learning by providing ideas for new conceptions for practice and by bringing attention back to the physical body as a source of learning and transformation.
Thermally corrected masses and freeze-in dark matter: a case study
Creators: name: Chakrabarty, Nabarun
name: Konar, Partha
name: and, Rishav Roshan
name: Show, Sudipta
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: If coupled \emph{feebly} to the Standard Model bath, a dark matter can evade the severe constraints from the direct search experiments. At the same time, such interactions help produce dark matter via the freeze-in mechanism. The freeze-in scenario becomes more interesting if one also includes the thermal masses of the different particles involved in the dark matter phenomenology. Incorporating such thermal corrections opens up the possibility of dark matter production via forbidden channels that remain kinematically disallowed in the standard freeze-in setup. Motivated by this, we investigate such freeze-in production of the dark matter in a minimally extended $U(1)_{L_μ-L_τ}$ framework that remains consistent with the recent muon $(g-2)$ data. Here, the role of the dark matter is played by the scalar with a non-trivial charge under the additional symmetry $U(1)_{L_μ-L_τ}$. This scalar dark matter obtains a thermally corrected mass at high temperatures for a not-so-small self-coupling. We show that the thermal correction to the dark matter mass plays a significant role in the dark matter phenomenology.
description: 26 pages, 11 figures, version published in PRD
Quantum Resource Theories of Non-Projectiveness
Creators: name: Dicaire, Nuiok
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Quantum information science
subject: Mathematical physics
subject: Quantum resource theories
subject: Quantum measurements
subject: Mathematics
subject: FOS: Mathematics
subject: Physics--Theory

description: It was recently realized that many quantum phenomena, such as entanglement or non-locality, can be expressed in the framework of quantum resource theories (QRTs) as resources that can be expended to perform tasks. This approach has revolutionized our understanding of these phenomena and has provided a framework to rigorously characterize them, quantify them, and study the question of convertibility of resources within them. Moreover, this framework has enabled the discovery of similar structures common to many QRTs, and thus offered a better and deeper understanding of the phenomena they describe. Most of the research that has been done so far in the area of QRTs has been concerned with resource theories of states, that is, where the objects in the QRT are static resources that are divided among free and resource states. Free operations, defined as quantum channels that do not generate resources, are used to transform these states. However, this concept can be generalized to include dynamical resources, or non-free operations. We call the resource theories that arise from this, QRTs of quantum processes. This thesis introduces different QRTs of quantum processes that we call QRTs of non-projectiveness. More precisely, these are QRTs where projective measurements are considered free. There are different resource theories that arise based on exactly which additional operations are allowed and whether quantum measurements are described with a classical output, a quantum output, or both. This research looks into four such QRTs of non-projectiveness.
title: Tumor or not tumor? CT findings in arterioportal shunting
Creators: name: Maris, Georgiana Maria
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Haemodynamics / Flow dynamics
subject: Contrast agent-intravenous
subject: Computer Applications-Detection, diagnosis
subject: CT
subject: Vascular
subject: Liver
subject: Abdominal Viscera

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To recognize the tumoral or non-tumoral origin of the arterioportal shunting (APS) on dynamic CT imaging. To understand the etiology and physiopathology of APS for better diagnosis and correlation between the imaging and associated...
Actions of Reconciliation
Creators: name: Tritter, Nicole Danielle Korenda
Publisher: name: Arts
Year: 2018
Subjects: subject: Reconciliation
subject: Indigenization
subject: Decolonization
subject: Identity
subject: Fine Arts

description: This journey of R/reconciliation within myself, to this land and within this country has been a central theme of my research creation. I arrived on campus with questions about my role within the Canadian Reconciliation process and wondered whether I could make art to reflect R/reconciliation and/or create dialogue about its meaning. Using an Indigenous methodology that favours self-transformation, I used embodied knowledge to lead my art-making practice. University of Calgary/Mohkinstsis began as an art intervention on campus where I redesigned the University’s Coat of Arms and logo. The redesign was created though Indigenous traditional teachings, where “parallels” were found between oral and written knowledge systems. These “parallel practice” teachings became foundational thoughts for Stitching my flesh back together, a piece which reflects a more personal journey towards self-reconciliation. My cultural background has Mi’kmaq (from time immemorial), Acadian French (from the first colony in Canada) and Ukrainian immigrant (first-born Canadian) roots. These differing backgrounds often clashed within my body. I found reconciliation by using the traditional art-forms of cross-stitching, beading, quilling and quilting to create an interconnected image and complete person.
Quasi-equilibrium in glassy dynamics: an algebraic view
Creators: name: Franz, Silvio
name: Parisi, Giorgio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study a chain of identical glassy systems in a constrained equilibrium where each bond of the chain is forced to remain at a preassigned distance to the previous one. We apply this description to Mean Field Glassy systems in the limit of long chain where each bond is close to the previous one. We show that in specific conditions this pseudo-dynamic process can formally describe real relaxational dynamics the long time. In particular, in mean field spin glass models we can recover in this way the equations of Langevin dynamics in the long time limit at the dynamical transition temperature and below. We interpret the formal identity as an evidence that in these situations the configuration space is explored in a quasi-equilibrium fashion. Our general formalism, that relates dynamics to equilibrium puts slow dynamics in a new perspective and opens the way to the computation of new dynamical quantities in glassy systems.
description: A few typos corrected in the new version
Plastische Verformungsmechanismen in hochgradig kaltgewalzten, ultrafeinkörnigen Wolframblechen
Creators: name: Bonk, Simon Werner
Publisher: name: KIT Scientific Publishing
Year: 2019
Subjects: Plastische Verformungsmechanismen Kaltgewalztes Wolfram Versetzungs-Korngrenzen-Interaktion Mikrostruktur Zugversuchsduktilität
Deformation mechanisms Cold rolled tungsten Dislocation - grain boundary – interaction Microstructure Tensile ductility

description: Kaltgewalzte Wolframbleche gelten als vielversprechende Halbzeuge für Hochtemperaturanwendungen. Die Korrelation von Mikrostrukturmerkmalen mit dehnratensensitiven, mechanischen Eigenschaften unterschiedlich stark kaltgewalzter Wolframbleche erlaubt Rückschlüsse auf die plastischen Verformungsmechanismen zu ziehen. Damit lässt sich die gleichzeitige Festigkeitssteigerung und Duktilisierung der technisch reinen Wolframbleche bei Raumtemperatur sowie deren Hochtemperaturverhalten erklären.
Continuous-Time Analog Filters for Audio Edge Intelligence: Review on Circuit Designs
Creators: name: Kim, Kwantae
name: Liu, Shih-Chii
Publisher: name: arXiv
Year: 2022
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Hardware Architecture (cs.AR)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Edge audio devices can reduce data bandwidth requirements by pre-processing input speech on the device before transmission to the cloud. As edge devices are required to ensure always-on operation, their stringent power constraints pose several design challenges and force IC designers to look for solutions that use low standby power. One promising bio-inspired approach is to combine the continuous-time analog filter channels with a small memory footprint deep neural network that is trained on edge tasks such as keyword spotting, thereby allowing all blocks to be embedded in an IC. This paper reviews the historical background of the continuous-time analog filter circuits that have been used as feature extractors for current edge audio devices. Starting from the interpretation of a basic biquad filter as a two-integrator-loop topology, we introduce the progression in the design of second-order low-pass and band-pass filters ranging from OTA-based to source-follower-based architectures. We also derive and analyze the small-signal transfer function and discuss their usage in edge audio applications.
description: 17 pages, 19 figures, 1 table
Random Fan-Out State Induced by Site-Random Interlayer Couplings
Creators: name: Tamura, Ryo
name: Kawashima, Naoki
name: Yamamoto, Takafumi
name: Tassel, Cedric
name: Kageyama, Hiroshi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the low-temperature properties of a classical Heisenberg model with site-random interlayer couplings on the cubic lattice. This model is introduced as a simplified effective model of Sr(Fe$_{1-x}$Mn$_{x}$)O$_2$, which was recently synthesized. In this material, when $x=0.3$, $(πππ)$ and $(π\pi0)$ mixed ordering is observed by neutron diffraction measurements. By Monte Carlo simulations, we find an exotic bulk spin structure that explains the experimentally obtained results. We name this spin structure the "random fan-out state". The mean-field calculations provide an intuitive understanding of this phase being induced by the site-random interlayer couplings. Since Rietveld analysis assuming the random fan-out state agrees well with the neutron diffraction pattern of Sr(Fe$_{0.7}$Mn$_{0.3}$)O$_2$, we conclude that the random fan-out state is reasonable for the spin-ordering pattern of Sr(Fe$_{0.7}$Mn$_{0.3}$)O$_2$ at the low-temperature phase.
description: 13 pages, 12 figures
Clustering of X-Ray-Selected AGN
Creators: name: Cappelluti, Nico
name: Allevato, Viola
name: Finoguenov, Alexis
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The study of the angular and spatial structure of the X-ray sky has been under investigation since the times of the Einstein X-ray Observatory. This topic has fascinated more than two generations of scientists and slowly unveiled an unexpected scenario regarding the consequences of the angular and spatial distribution of X-ray sources. It was first established from the clustering of sources making the CXB that the source spatial distribution resembles that of optical QSO. It then it became evident that the distribution of X-ray AGN in the Universe was strongly reflecting that of Dark Matter. In particular one of the key result is that X-ray AGN are hosted by Dark Matter Halos of mass similar to that of galaxy groups. This result, together with model predictions, has lead to the hypothesis that galaxy mergers may constitute the main AGN triggering mechanism. However detailed analysis of observational data, acquired with modern telescopes, and the use of the new Halo Occupation formalism has revealed that the triggering of an AGN could also be attributed to phenomena like tidal disruption or disk instability, and to galaxy evolution. This paper reviews results from 1988 to 2011 in the field of X-ray selected AGN clustering.
description: 19 pages, 4 Figures, review paper published on Advances in Astronomy Special Issue "Seeking for the Leading Actor on the Cosmic Stage: Galaxies versus Supermassive Black Holes", v2, final version
Cluster-formation in the Rosette molecular cloud at the junctions of filaments
Creators: name: Schneider, N.
name: Csengeri, T.
name: Hennemann, M.
name: Motte, F.
name: Didelon, P.
name: Federrath, C.
name: Bontemps, S.
name: Di Francesco, J.
name: Arzoumanian, D.
name: Minier, V.
name: André, Ph.
name: Hill, T.
name: Zavagno, A.
name: Nguyen-Luong, Q.
name: Attard, M.
name: Bernard, J. -Ph.
name: Elia, D.
name: Fallscheer, C.
name: Griffin, M.
name: Kirk, J.
name: Klessen, R.
name: Könyves, V.
name: Martin, P.
name: Men'shchikov, A.
name: Palmeirim, P.
name: Peretto, N.
name: Pestalozzi, M.
name: Russeil, D.
name: Sadavoy, S.
name: Sousbie, T.
name: Testi, L.
name: Tremblin, P.
name: Ward-Thompson, D.
name: White, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: For many years feedback processes generated by OB-stars in molecular clouds, including expanding ionization fronts, stellar winds, or UV-radiation, have been proposed to trigger subsequent star formation. However, hydrodynamic models including radiation and gravity show that UV-illumination has little or no impact on the global dynamical evolution of the cloud. The Rosette molecular cloud, irradiated by the NGC2244 cluster, is a template region for triggered star-formation, and we investigated its spatial and density structure by applying a curvelet analysis, a filament-tracing algorithm (DisPerSE), and probability density functions (PDFs) on Herschel column density maps, obtained within the HOBYS key program. The analysis reveals not only the filamentary structure of the cloud but also that all known infrared clusters except one lie at junctions of filaments, as predicted by turbulence simulations. The PDFs of sub-regions in the cloud show systematic differences. The two UV-exposed regions have a double-peaked PDF we interprete as caused by shock compression. The deviations of the PDF from the log-normal shape typically associated with low- and high-mass star-forming regions at Av~3-4m and 8-10m, respectively, are found here within the very same cloud. This shows that there is no fundamental difference in the density structure of low- and high-mass star-forming regions. We conclude that star-formation in Rosette - and probably in high-mass star-forming clouds in general - is not globally triggered by the impact of UV-radiation. Moreover, star formation takes place in filaments that arose from the primordial turbulent structure built up during the formation of the cloud. Clusters form at filament mergers, but star formation can be locally induced in the direct interaction zone between an expanding HII--region and the molecular cloud.
description: A&A Letter, in press
title: The ecosystem of ethics & support of big data
title: The ecosystem of ethics & support of big data research
titleType: AlternativeTitle
Creators: name: Tijerina, Bonnie
name: Society Of Quality Assurance, Publisher
Publisher: name: Mountain Scholar
Year: 2016
Subjects: ethics
fairness
data-centric society
connected learning
intelligence
autonomy
human rights
human security

description: Presented at the National data integrity conference: data sharing: the how, why, when and when not to share held on June 2-3, 2016 at University of Colorado, Denver, Colorado. The National Data Integrity Conference is a gathering of people sharing new challenges and solutions regarding research data and integrity. This conference aims to provide attendees with both an understanding of data integrity issues and impart practical tools and skills to deal with them. Topics addressed will include data privacy, openness, policy, education and the impacts of sharing data, how to do it, when to do it, and when not to. Speakers and audience members come from diverse fields such as: Academic Research; Information Technology; Quality Assurance; Regulatory Compliance; Private Industry; Grant Funding; Government.
description: Bonnie Tijerina is a librarian, entrepreneur, and library community convener. She is founder and president of Electronic Resources & Libraries. Her work will create opportunities for education, debate, and discussion within the library profession around the increasingly complex concept of privacy in the digital world. Bonnie will be working closely with libraries to support user privacy and empower the general citizenry to make informed decisions about their data.
description: PowerPoint presentation given on June 3, 2016.
description: Research involving data has gotten more complicated in recent years. With corporate, governmental, and other externally collected sources of data on human behavior increasingly available as well as new concerns about collecting online data such as social media data, issues of privacy, ethics, and equitable access to data are popping up that technical researchers are not trained to manage. Systems currently in existence to help researchers navigate ethical concerns and new and emerging mandates can help with parts of the puzzle, yet many of the complex questions and tradeoffs are not best addressed by existing protocols. To surface emerging issues and potential support systems on university campuses, a team at Data & Society Research Institute interviewed computer science researchers, data scientists, graduate students, and librarians. They also mapped funder mandates, IRB trainings, and existing policies and protocols at professional associations. Bonnie Tijerina will talk about this project and broader issues of privacy and ethics emerging in other disciplines with the increased use of big data.
Emulsion Injection for Enhancing the Fast-and Uniform SAGD Start-up Process
Creators: name: Yu, Long
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Oil-in-water emulsion
subject: plugging behavior
subject: conformance control
subject: flow model
subject: Education--Industrial
subject: Education--Mathematics
subject: Engineering--Chemical
subject: Engineering--Petroleum

description: The start-up of Steam-Assisted Gravity Drainage (SAGD) process relies on months of non-productive steam circulation. A technology called Fast-and Uniform SAGD Start-up Enhancement (FUSE) has been developed to start up SAGD earlier using dilation mechanism. However, in some reservoirs there exist heterogeneities in inter-well zone along horizontal wells, which may cause uneven development of the dilation front, resulting in some low-mobility region un-swept. For the success of FUSE, it is crucial to temporarily block the high-mobility zones, so the injected fluid can penetrate into low permeability zones to form uniform dilation in the SAGD inter-well region. Using oil-in-water (O/W) emulsion as selective plugging agents seems a promising method due to the special advantages of controllable droplet size, non-permanent plugging, less formation damage of emulsion. In this work, to develop suitable oil-in-water emulsion systems, laboratory experiments and theoretical model were carefully designed. Emulsification tests were first conducted to screen suitable emulsifiers. Physicochemical properties of emulsion were characterized by stability, droplet size distribution, and rheological properties. Plugging behavior and conformance control performance of prepared emulsion were tested through sandpack flow experiments. Results show that O/W emulsion had good plugging performance when flowing in porous media with the largest sandpack permeability reductions greater than 99%. Interfacial tension significantly affects emulsion plugging behavior and conformance control ability. Emulsions with adequate interfacial tension possess favorable deformability and flexibility, which ensures they can alternately plug the heterogeneous sandpacks and obtain good conformance control performance. A new theoretical model, which incorporated physical properties of porous media, physicochemical properties of emulsion system, injection strategy and the interactions between porous media and emulsion, was developed to quantitatively describe the flow behaviors of emulsion in porous media. By appropriately choosing coefficients, the simulated results can have a well agreement to the experimental data. This work will greatly increase the understanding of emulsion flow in porous media, and provide technical guides for the optimization of the O/W emulsion injection in FUSE operation in oilfields.
Investigating 24-Hour Movement Behaviours of Children and Youth Attending Summer Camps
Creators: name: Grewal, Eshleen Kaur
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Canadian 24-Hour Movement Guidelines
subject: summer camp
subject: physical activity
subject: Sleep
subject: sedentary behaviour
subject: Education--Physical
subject: Recreation
subject: Physiology
subject: FOS: Biological sciences

description: The KiSS UC study (n=224) measured all four movement behaviours from the Canadian 24-Hour Movement Guidelines: light physical activity (LPA), moderate-to-vigorous physical activity (MVPA), sleep, and sedentary behaviour (SB). The study objectives were to determine the: 1) proportion of participants meeting those guidelines, 2) factors associated with meeting the guidelines (sex, age, camp type, ethnicity, number of other children in the household, parent education), and 3) out-of-camp activities engaged in. Garmin vivofits measured LPA and sleep; Garmin heart rate monitors and Actihearts measured MVPA; SB and out-of-camp activities were assessed using questionnaires (CAPL, CPAQ, respectively). A large proportion of participants met the LPA (88%), MVPA (100%), sleep (65%), and SB (78%) guidelines. Age, parent education, sex, and number of other children in the household were significant predictors for sleep and SB. In summary, summer camps may be a setting where each of the Canadian 24-Hour Movement Guidelines can be met.
An experimental study on time-dependent behaviour of reconstituted clayey soils in 1D and triaxial compression
Creators: name: Wickrama Kaluthota Hewage, Rajitha Eranga Wickramage
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Engineering--Civil

description: Accurate assessment of the safe performance of geotechnical structures against the time-dependent strength-deformation behaviour of soils relies on the knowledge acquired from laboratory and field experiments. Therefore, the focus of this research is to experimentally investigate the role of stress history, soil properties and loading system in the time-dependent strength-deformation behaviour of reconstituted clayey soils. The experimental program consists of oedometer and triaxial compression tests on compacted lightly overconsolidated natural soils (high plastic Regina clay and low plastic Calgary till) as well as on artificial soil mixtures made by mixing pure kaolinite or bentonite with crushed Opal, silt or Calgary till. Results of multiple-stage oedometer tests show that vertical stress level, clay content, size of the coarse particle, coarse particle type, clay type, and liquid limit affect the secondary compression behaviour of oils. Results of constant rate of strain tests in oedometer and triaxial conditions show that at a given strain level, faster strain rates always result in a higher effective vertical stress or deviatoric stress value for high plastic Regina clay. Thus, the behaviour is considered as isotach. However, low plastic Calgary till shows isotach behaviour only under overconsolidated or unsaturated conditions. Further, strain rate effect on shear strength is found to increase with liquid limit, OCR value, matric suction, and absolute magnitude of strain rate. In both oedometer and triaxial conditions, the ratio between relaxed stress at any time and the stress level at the beginning of the relaxation test is found to be linear with the logarithm of time after an initial time period. These linear segments are approximately parallel for stress relaxation tests conducted within or closer to the NC region/post-peak region of the stress-strain curve a soil. The gradient of these parallel segments is found to be independent of the soil structure and confining pressure but depends on the test condition and degree of saturation. Intercepts of fitted lines to these parallel segments can be used to correlate strain rate, stress relaxation behaviour and pre-consolidation pressure. Keywords: Time-dependent, secondary compression, stress relaxation, shear strength, isotach
From Free-Energy Profiles to Activation Free Energies
Creators: name: Dietschreit, Johannes C. B.
name: Diestler, Dennis J.
name: Hulm, Andreas
name: Ochsenfeld, Christian
name: Gómez-Bombarelli, Rafael
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Given a chemical reaction going from reactant (R) to the product (P) on a potential energy surface (PES) and a collective variable (CV) that discriminates between R and P, one can define a free-energy profile (FEP) as the logarithm of the marginal Boltzmann distribution of the CV. The FEP is not a true free energy, however, it is common to treat the FEP as the free-energy analog of the minimum energy path on the PES and to take the activation free energy, $ΔF^\ddagger_\mathrm{RP}$, as the difference between the maximum of the FEP at the transition state and the minimum at R. We show that this approximation can result in large errors. Since the FEP depends on the CV, it is therefore not unique, and different, discriminating CVs can yield different activation free energies for the same reaction. We derive an exact expression for the activation free energy that avoids this ambiguity with respect to the choice of CV. We find $ΔF^\ddagger_\mathrm{RP}$ to be a combination of the probability of the system being in the reactant state, the probability density at the transition state surface, and the thermal de~Broglie wavelength associated with the transition from R to P. We then evaluate the activation free energies based on our formalism for simple analytic models and realistic chemical systems. The analytic models show that the widespread FEP-based approximation applies only at low temperatures for CVs for which the effective mass of the associated pseudo-particle is small. Most chemical reactions of practical interest involve polyatomic molecules with complex, high-dimensional PES that cannot be treated analytically and pose the added challenge of choosing a good CV, typically through heuristics. We study the influence of the choice of CV and find that, while the reaction free energy is largely unaffected, $ΔF^\ddagger_\mathrm{RP}$ is quite sensitive.
description: 19 pages, 11 figures
Exploring Prototyping Tools for Interactive Fashion Design
Creators: name: Ta, Kevin
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: prototyping tools
subject: electronic fashion
subject: augmented reality
subject: Computer Science

description: Interactive garments enable new forms of communication between our bodies and with other people. In electronic fashion (eFashion) design, interactive garments on high fashion runways envision how people might use interactive technologies to enhance our clothing with new sensing and output capabilities. Researchers and fashion designers have since explored new interactive textiles that enable aesthetics-driven, interactive, and new material properties to explore on clothing. While there exist physical tools to implement interactive garments and software tools to create the visual aesthetic of a garment, these tools cannot yet enable designers to use new eFashion technologies in their garments because they require engineering expertise and specialized laboratory equipment. In this thesis, I explore the use of computer-aided prototyping tools to develop interactive eFashion garments. I present case studies with makers and two experienced eFashion designers about their design practices and formulate design guidelines for prototyping tools. I then present two prototyping tools for implementation and exploration of interactive garments. Finally, I discuss future work for physical and virtual prototyping tools in eFashion.
Static Deadlock Detection for the SHIM Concurrent Language
Creators: name: Vasudevan, Nalini
name: Edwards, Stephen A.
Publisher: name: Columbia University
Year: 2008
Subjects: Computer science

description: Concurrent programming languages are becoming mandatory with the advent of multi-core processors. Two major concerns in any concurrent program are data races and deadlocks. Each are potentially subtle bugs that can be caused by non-deterministic scheduling choices in most concurrent formalisms. As an alternative, the SHIM concurrent language guarantees the absence of data races by eschewing shared memory, but a SHIM program may still deadlock if a program violates a communication protocol. We present a model-checking-based static deadlock detection technique for the SHIM language. Although SHIM is asynchronous, its semantics allow us to model it synchronously without losing precision, greatly reducing the state space that must be explored. This plus the obvious division between control and data in SHIM programs makes it easy to construct concise abstractions. Experimentally, we find our procedure runs in only a few seconds for modest-sized programs, making it practical to use as part of a compilation chain.
Direct and Indirect Effects of Authoritarianism on Policy Preferences in Canada
Creators: name: Santos, John Bernard
Publisher: name: Arts
Year: 2018
Subjects: subject: authoritarianism
subject: political behaviour
subject: public opinion
subject: political psychology
subject: Canadian Politics
subject: Political Science
subject: FOS: Political science

description: Authoritarianism, as a value orientation that prioritizes conformity over autonomy, is a popular explanation for political preferences and behaviour but it is misunderstood as existing only on the right; as either an all-powerful or insignificant predictor of policy preferences; and as a predisposition that is activated by threat. Our understanding of it is further hampered by a lack of research outside of the United States. I address these problems by constructing a model where authoritarian values, moderated by perceived threat, exert a direct effect on policy preferences and indirect effects through prejudice, ideology, and partisanship. Testing this model on data from the Canadian Election Study, I find evidence that authoritarianism cuts across the political spectrum; is not activated by threat, but rather has greater effects in the absence of threat; and is partially mediated by prejudice and ideology. This shines a new light on some Canadian policy debates (especially the banning of religious facial coverings) and replicates previous American findings.
Damage Identification in Fiber Metal Laminates using Bayesian Analysis with Model Order Reduction
Creators: name: Muralidhar, Nanda Kishore Bellam
name: Gräßle, Carmen
name: Rauter, Natalie
name: Mikhaylenko, Andrey
name: Lammering, Rolf
name: Lorenz, Dirk A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applications (stat.AP)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Fiber metal laminates (FML) are composite structures consisting of metals and fiber reinforced plastics (FRP) which have experienced an increasing interest as the choice of materials in aerospace and automobile industries. Due to a sophisticated built up of the material, not only the design and production of such structures is challenging but also its damage detection. This research work focuses on damage identification in FML with guided ultrasonic waves (GUW) through an inverse approach based on the Bayesian paradigm. As the Bayesian inference approach involves multiple queries of the underlying system, a parameterized reduced-order model (ROM) is used to closely approximate the solution with considerably less computational cost. The signals measured by the embedded sensors and the ROM forecasts are employed for the localization and characterization of damage in FML. In this paper, a Markov Chain Monte-Carlo (MCMC) based Metropolis-Hastings (MH) algorithm and an Ensemble Kalman filtering (EnKF) technique are deployed to identify the damage. Numerical tests illustrate the approaches and the results are compared in regard to accuracy and efficiency. It is found that both methods are successful in multivariate characterization of the damage with a high accuracy and were also able to quantify their associated uncertainties. The EnKF distinguishes itself with the MCMC-MH algorithm in the matter of computational efficiency. In this application of identifying the damage, the EnKF is approximately thrice faster than the MCMC-MH.
Non-Abelian eigenstate thermalization hypothesis
Creators: name: Murthy, Chaitanya
name: Babakhani, Arman
name: Iniguez, Fernando
name: Srednicki, Mark
name: Halpern, Nicole Yunger
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The eigenstate thermalization hypothesis (ETH) explains why chaotic quantum many-body systems thermalize internally if the Hamiltonian lacks symmetries. If the Hamiltonian conserves one quantity ("charge"), the ETH implies thermalization within a charge sector -- in a microcanonical subspace. But quantum systems can have charges that fail to commute with each other and so share no eigenbasis; microcanonical subspaces may not exist. Furthermore, the Hamiltonian will have degeneracies, so the ETH need not imply thermalization. We adapt the ETH to noncommuting charges by positing a non-Abelian ETH and invoking the approximate microcanonical subspace introduced in quantum thermodynamics. Illustrating with SU(2) symmetry, we apply the non-Abelian ETH in calculating local observables' time-averaged and thermal expectation values. In many cases, we prove, the time average thermalizes. However, we also find cases in which, under a physically reasonable assumption, the time average converges to the thermal average unusually slowly as a function of the global-system size. This work extends the ETH, a cornerstone of many-body physics, to noncommuting charges, recently a subject of intense activity in quantum thermodynamics.
description: 5 pages (+Supplementary Material: 11 pages). Final version published in Physical Review Letters
2025-02-07_Owning,renting and environmental proactivity.R
Creators: name: Schulz, Manuela
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 320210
subject: Geriatrics and gerontology

description: The dataset consists of 264 participants. They were asked about home ownership and then presented with 10 housing vignettes (factorial survey) to indicate how likely they would be to move in. The data were analyzed using group comparisons and zero-inflated models
Generic features of the phase transition in cold and dense quark matter
Creators: name: Fukushima, Kenji
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the phase transition in cold and dense quark matter in an intuitive way that shares common features of the effective model approaches. We first express the quasi-particle contribution to the thermodynamic potential with the dynamical mass M and then discuss how we can understand the possible first-order phase transition with and without the vector interaction from the saturation curve on the plane of the energy per particle and the density. We next extend our analysis including inhomogeneity and discuss the relation between the order of the phase transition and the saturation curve. We emphasize that the saturation curve is useful to infer qualitative nature of the phase transition even without knowing the explicit solution of the ground state.
description: 7 pages, 7 figures; typos corrected, accepted for publication in PRD
Additional file 2 of Psychological and physiological stress and burnout among maternity providers in a rural county in Kenya: individual and situational predictors
Creators: name: Afulani, Patience A.
name: Ongeri, Linnet
name: Kinyua, Joyceline
name: Temmerman, Marleen
name: Mendes, Wendy Berry
name: Weiss, Sandra J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Hair cortisol analysis procedures. Details of procedure for hair cortisol analysis.
A variational EM algorithm for learning eigenvoice parameters in mixed signals
Creators: name: Weiss, Ron J.
name: Ellis, Daniel P. W.
Publisher: name: Columbia University
Year: 2009
Subjects: subject: Electrical engineering
subject: Mathematics
subject: FOS: Mathematics

description: We derive an efficient learning algorithm for model-based source separation for use on single channel speech mixtures where the precise source characteristics are not known a priori. The sources are modeled using factor-analyzed hidden Markov models (HMM) where source specific characteristics are captured by an "eigenvoice" speaker subspace model. The proposed algorithm is able to learn adaptation parameters for two speech sources when only a mixture of signals is observed. We evaluate the algorithm on the 2006 speech separation challenge data set and show that it is significantly faster than our earlier system at a small cost in terms of performance.
MORPHOPOLY. Eine multi-sensorische Medien-Archäologie
Creators: name: Zakravsky, Katherina T.
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 470107
subject: Media studies
classificationCode: 330102
subject: Architectural design
classificationCode: 360699
subject: Visual arts not elsewhere classified

description: An analytical text on the media archaeology of the project "MORPHOPOLY", a project of artistic research embedded in the Social Design and Research departments of the University of Applied Arts, Vienna, funded by the FWF, Austria (2021-2023).The text has been written by its managing director, Katherina T. Zakravsky, KT as author, using various visual materials from the website www.morphopoly.org (managed mainly by Simone carneiro, artistic director of the project), written April 2023. It has been proposed for the 2nd issue of the peer-reviewed magazine "Reposition", but has been declined.This version is German, an English one to follow.
title: Arrhythmogenic Right Ventricular Dysplasia: assessment of Right Ventricular abnormalities using Cardiac MRI
Creators: name: Ancau, Andreea
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Dysplasias
subject: Dilatation
subject: Imaging sequences
subject: MR-Functional imaging
subject: MR
subject: Cardiovascular system
subject: Cardiac
subject: Performed at one institution

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: 1. To evaluate the role of cardiac magnetic resonance (CMR) in the diagnosis and long-term evaluation of Arrhythmogenic Right Ventricular Dysplasia (ARVD) 2. To illustrate and describe the imaging findings in ARVD 3. To establish the advantages of...