cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Performance of High-Strength Reinforced Concrete Columns Under Shock-Tube Induced Blast Loading
Creators: name: Hammoud, Amer
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: Blast
Shock-tube
Columns
Reinforced concrete
High-strength concrete
High-strength steel
Steel fibers
Seismic detailing
SDOF

description: Accounting for blast hazards has become one of the major concerns for civil engineers when analysing and designing structures. Recent terrorist attacks and accidental explosions have demonstrated the importance of mitigating blast effects on buildings to ensure safety, preserve life and ensure structural integrity. Innovative materials such as high-strength concrete, steel fibers, and high-strength steel offer a potential solution to increase resistance against extreme dynamic loading and improve the blast resilience of buildings. This thesis presents the results of an experimental and analytical study examining the effect of high-strength concrete, high-strength reinforcement and steel fibers on the blast behaviour of reinforced concrete columns. As part of the study, a total of seventeen reinforced concrete columns with different design combinations of concrete, steel fibers, and steel reinforcement were designed, constructed, and tested under gradually increasing blast loads using the University of Ottawa shock-tube facility. Criteria used to assess the blast performance of the columns and the effect of the test variables included overall blast capacity, mid-span displacements, cracking patterns, secondary fragmentation, and failure modes. The effect of concrete strength was found to only have a moderate effect on the blast performance of the columns. However, the results showed that benefits are associated with the combined use of high-strength concrete with steel fibers and high-strength reinforcement in columns tested under blast loads. In addition to the experimental program, a dynamic inelastic single-degree-of-freedom analysis was performed to predict the displacement response of the test columns. A sensitivity analysis was also conducted to examine the effect of various modelling parameters such as materials models, DIFs, and accumulated damage on the analytical predictions.
Development of a Continuous Calcium Looping Process for CO2 Capture
Creators: name: Symonds, Robert
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: Calcium looping
CO2 capture

description: Carbon capture and storage technologies are required in order to reduce greenhouse gas emissions, while continuing to utilize existing fossil-fueled power generation stations. Of the many developing post-combustion CO2 capture technologies, calcium looping appears promising due to its high thermal efficiency, technical feasibility at commercial-scale, and low sorbent cost. Calcium looping has now been performed at the larger-scale, but there is still a significant quantity of information about sorbent performance, the fate of trace pollutant emissions (specifically SO2 and HCl), dual fluidized bed operating configurations, and impact of realistic operating conditions that still needs to be determined. Based on an economic analysis of the process, three key parameters serve to have the largest potential economic impact: (1) the sorbent deactivation rate, (2) the Ca/C molar ratio, and (3) the rate of sorbent attrition. Therefore, a series of bench-scale, pilot-scale, and continuous pilot-scale testing were conducted to not only explore these parameters from an improvement standpoint, but accurately determine them under conditions expected at the commercial-scale. The presence of HCl did not have a significant impact on sorbent performance provided that steam is present during calcination, although issues with downstream corrosion could be a factor. High CO2 partial pressures during calcination, coupled with high temperatures and the presence of SO2, resulted in dramatically lower cyclic carbonation conversions and a reduced high CO2 capture efficiency regime. Continuous pilot-scale testing generated realistic, and more detrimental, values for sorbent carrying capacity, Ca/C molar ratio, sorbent make-up rates, and rate of sorbent elutriation, that can now be utilized for techno-economic evaluations and scale-up of the technology.
A Survey of Technique Elements in Piano Method Books and Technique Books for Young Piano Beginners
Creators: name: Sung, Meir Mei Wah
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: piano method books
piano technique
young piano beginners
technique elements
teaching piano technique
piano pedagogues

description: Piano teachers agree that acquiring piano technique knowledge and skills is beneficial for musical interpretation as lacking a good technique may impact on the musicality of a performance and poor technique may lead to muscular pain or injury. Many piano teachers use a series of piano method books as major teaching materials in the lesson. It is essential for teachers to understand the technical elements included in the piano method books and to investigate whether any piano technical element is missing so that they may consider using supplementary technique teaching materials. Besides, to understand how the technical elements are presented and how soon each technique element is introduced would help teachers to teach more efficiently. The purpose of this study was to review how expert pedagogues teach piano technique to establish a framework of technique elements that should be taught to young piano beginners. Based on this framework, we undertook an analysis of the technical elements found in thirteen series of piano method lesson books together with their accompanying technical books. A calculation of the proportion of each piano technique element in each series, an evaluation of the pace at which new technique elements are introduced and an analysis of how each one is presented forms the objective of this study. The results will provide piano teachers with thorough information on the technique elements found in different method books and will help piano teachers to select the most appropriate method books for their students.
Novel single phase vanadium dioxide nanostructured films for methane sensing near room temperature
Creators: name: Prasad, A. K.
name: Amirthapandian, S.
name: Dhara, S.
name: Dash, S.
name: Murali, N.
name: Tyagi, A. K.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Methane (CH_4) gas sensing properties of novel vanadium dioxide (VO_2) nanostructured films is reported for the first time. The single phase nanostructures are synthesized by pulsed dc-magnetron sputtering of V target followed by oxidation in O_2 atmosphere at 550 ^oC. The partial pressure of O_2 is controlled to obtain stoichiometric VO_2 with the samples showing rutile monoclinic crystalline symmetry and regions of rod shaped nano-architectures. These nanostructured films exhibit a reversible semiconductor to metal transition in the temperature range of 60-70 ^oC. Gas sensing experiments are carried out in the temperature span from 25 ^oC to 200 ^oC in presence of CH_4. These experiments reveal that the films respond very well at temperatures as low as 50 ^oC, in the semiconducting state.
description: 18 pages, 4 figures, journal
Study of collective flows of protons and $π^{-}$ -mesons in p(C, Ta) and He(Li, C) collisions at momenta of 4.2, 4.5 and 10 AGeV/c
Creators: name: Chkhaidze, L.
name: Chlachidze, G.
name: Djobava, T.
name: Galoyan, A.
name: Kharkhelauri, L.
name: Togoo, R.
name: Uzhinsky, V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Collective flows of protons and $π^{-}$-mesons are studied at the momenta of 4.2, 4.5 and 10 AGeV/c for p(C, Ta) and He(Li, C) interactions. The data were obtained from the streamer chamber (SKM-200-GIBS) and from the Propane Bubble Chamber (PBC-500) systems utilized at JINR. The method of Danielewicz and Odyniec has been employed in determining the directed transverse flow of particles. The values of the transverse flow parameter and the strength of the anisotropic emission were defined for each interacting nuclear pair. It is found that the directed flows of protons and pions decrease with increase of the energy and the mass numbers of colliding nucleus pairs. The $π^{-}$-meson and proton flows exhibit opposite directions in all studied interactions, and the flows of protons are directed in the reaction plane. The Ultra-relativistic Quantum Molecular Dynamical Model (UrQMD), enlarged by the Statistical Multi-fragmentation Model (SMM), satisfactorily describes obtained experimental results.
description: 10 pages, 6 figures, 2 tables
New developments in geometric mechanics
Creators: name: Bruce, A. J.
name: Grabowska, K.
name: Grabowski, J.
name: Urbanski, P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: Primary 70H50, Secondary 53D17, 70H50, 83E30

description: We review the concept of a graded bundle, which is a generalisation of a vector bundle, its linearisation, and a double structure of this kind. We then present applications of these structures in geometric mechanics including systems with higher order Lagrangian and the Plateau problem.
description: 16 pages, conference proceedings "Geometry of Jets and Fields" (Bedlewo, 10-16 May, 2015)
Statistical Literacy and Social Work
Creators: name: Dunleavy, Daniel
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: Confidence Intervals
subject: P-values
subject: Social Welfare Research
subject: Social Work
subject: FOS: Sociology
subject: Statistical inference
subject: Statistical literacy

description: This study seeks to examine how social workers (including: Researchers, academics, practitioners, and students) understand core statistical concepts. We will be attempting to follow the work of Oakes (1986) and Hoekstra et al. (2014) who explored psychologists' interpretation of p-values and confidence intervals - respectively.
Antigenic Variation at the vlsE Locus of the Lyme Disease Spirochete, Borrelia burgdorferi
Creators: name: Nosbisch, Leanna Kei
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: Lyme disease is caused by the tick-borne spirochete, Borrelia burgdorferi. The spirochete produces over 100 membrane anchored lipoproteins. One lipoprotein, designated VlsE, changes its antigenic properties through DNA recombination, most likely to evade adaptive immune responses in the host. Here we demonstrate that VlsE is on the surface of the spirochete and exposed to the outside. Our hypothesis is that vlsE recombination is active in the host but not in the tick, which does not have an adaptive immune system. We characterized the number of vlsE alleles present in culture and at different stages of the Borrelia life cycle in the vector and host. The locus was stable in culture and in ticks, unlike in mice where many novel recombinants were readily observed. These results support the hypothesis that vlsE recombination is more frequent in the host than in ticks.
On the Asymptotic Integration of a System of Linear Differential Equations with Oscillatory Decreasing Coefficients
Creators: name: Burd, V. Sh.
name: Karakulin, V. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 34E10

description: A system of linear differential equations with oscillatory decreasing coefficients is considered. The coefficients has the form $t^{-α}a(t)$,~$α>0$, where $a(t)$ is trigonometric polynomial with an arbitrary set of frequencies. The asymptotic behavior of the solutions of this system as $t\to\infty$ is studied. We construct an invertible (for sufficiently large $t$) change of variables that takes the original system to a system not containing oscillatory coefficients in its principal part. The study of the asymptotic behavior of the solutions of the transformed system is a simpler problem. As an example, the following equation is considered: $$ \frac{d^2x}{dt^2}+\left(1+\frac{\sinλt} {t^α}\right)x=0, $$ where $λ$ and $α$,~ $0
Could FiLaC™ be the revolution in the treatment of anal fistulas? A systematic review of observational studies and proportional meta-analysis.
Creators: name: Frountzas, Maximos
Publisher: name: Open Science Framework
Year: 2022

description: Purpose: Anal fistula disease still impairs the quality of life of thousands of patients. Despite its efficacy, the traditional surgical treatment with fistulotomy presents high rates of fecal incontinence due to division of the external sphincter. Therefore, new sphincter preserving techniques, like Fistula Laser Closure (FiLaC™), that include surgical interventions combined to new technologies and biomaterials have risen. The aim of the present meta-analysis is to present the efficacy and the safety of FiLaC™ in the management of anal fistula disease. Methods: The present proportional meta-analysis was designed using the PRISMA and AMSTAR guidelines. We searched Medline, Scopus, Clinicaltrials.gov, EMBASE, Cochrane Central Register of Controlled Trials CENTRAL and Google Scholar databases from inception until November 2019. Results: Overall, eight studies were included that recruited 476 patients. The pooled success rate of the technique was 63% (95% CI = 50 to 75). The pooled complication rate was 8% (95 CI = 1 to 18). 66% of the patients suffered from a transphincteric type of anal fistula, while 60% of patients had undergone a previous surgical intervention, mainly a seton (54%). The majority of the patients suffered from a cryptoglandular fistula. Operation time and follow-up period were described for each study. Conclusion: FiLaC™ seems to be an efficient therapeutic option for perianal fistula disease with an adequate level of safety, that preserves quality of life for patients. Nevertheless, randomized trials need to be designed for the comparison of FiLaC™ with the most common procedures for the management of anal fistulas.
Marketing mit Youtube
Creators: name: Nufer, Gerd
name: Kaps, Anne
Publisher: name: Universität Tübingen
Year: 2017
Subjects: subject: Marketing , YouTube , Social Media
subject: 330
subject: Influencer

description: Die Video-Plattform Youtube ist eine der meistbesuchten Webseiten weltweit. Youtube-Stars erreichen mit ihren Videos große Zuschauergruppen und können als Multiplikatoren für Werbebotschaften dienen. Sie sind oftmals Meinungsführer, denen hohes Vertrauen entgegengebracht wird, weshalb sie sich sehr gut für Influencer-Marketing eignen. Marketing mit Youtube ermöglicht eine offene, mehrwegige, schnelle und kostengünstige Kommunikation mit Kunden, insbesondere jüngeren. Unternehmen können sich dies zu Nutze machen, indem sie Youtube nicht nur als Plattform für klassische Werbespots, sondern auch für Produktplatzierungen, Videosponsoring oder Branded Entertainment in Zusammenarbeit mit Youtubern verwenden. Im Rahmen dieser Arbeit werden zunächst die Video-Plattform Youtube vorgestellt und die Grundidee des Influencer-Marketings dargelegt. Daraus leiten sich verschiedene Möglichkeiten der Zusammenarbeit mit Youtubern zu Marketingzwecken ab, die beschrieben und anhand zahlreicher Beispiele illustriert werden. Die Arbeit schließt mit einer kritischen Würdigung der Ergebnisse und Handlungsempfehlungen zur Nutzung von Youtube als Marketinginstrument im Hinblick auf Influencer-Marketing.
Imaging resonances in low-energy NO-He inelastic collisions
Creators: name: Vogels, Sjoerd N.
name: Onvlee, Jolijn
name: Chefdeville, Simon
name: van der Avoird, Ad
name: Groenenboom, Gerrit C.
name: van de Meerakker, Sebastiaan Y. T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: In molecular collisions, resonances occur at specific energies where the colliding particles temporarily form quasi-bound complexes, resulting in rapid variations in the energy dependence of scattering cross sections. Experimentally, it has proven challenging to observe such scattering resonances, especially in differential cross sections. We report the observation of resonance fingerprints in the state-to-state differential cross sections for inelastic NO-He collisions in the 13 to 19 cm$^{-1}$ energy range with 0.3 cm$^{-1}$ resolution. The observed structures were in excellent agreement with quantum scattering calculations. They were analyzed by separating the resonance contributions to the differential cross sections from the background through a partitioning of the multichannel scattering matrix. This revealed the partial wave composition of the resonances, and their evolution during the collision.
Le "chinook" roman face à l'empirie: Y a-t-il une conjugaison objective en français, en italien et en espagnol et une conjugaison subjective prédéterminante en français?
Creators: name: Koch, Peter
Publisher: name: Universität Tübingen
Year: 1992
Subjects: subject: Romanistik
subject: 440
subject: 450

description: Zweitveröffentlichung
Renyi Entropy of Free (2,0) Tensor Multiplet and its Supersymmetric Counterpart
Creators: name: Nian, Jun
name: Zhou, Yang
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We compute the Renyi entropy and the supersymmetric Renyi entropy for the six-dimensional free (2,0) tensor multiplet. We make various checks on our results, and they are consistent with the previous results about the (2,0) tensor multiplet. As a by-product, we have established a canonical way to compute the Renyi entropy for p-form fields in d-dimensions.
description: 1+16 pages
Semileptonic decays of $B_c$ meson to S-wave charmonium states in the perturbative QCD approach
Creators: name: Rui, Zhou
name: Li, Hong
name: Wang, Guang-xin
name: Xiao, Ying
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Inspired by the recent measurement of the ratio of $B_c$ branching fractions to $J/ψπ^+$ and $J/ψμ^+ν_μ$ final states at the LHCb detector, we study the semileptonic decays of $B_c$ meson to the S-wave ground and radially excited 2S and 3S charmonium states with the perturbative QCD approach. After evaluating the form factors for the transitions $B_c\rightarrow P,V$, where $P$ and $V$ denote pseudoscalar and vector S-wave charmonia, respectively, we calculate the branching ratios for all these semileptonic decays. The theoretical uncertainty of hadronic input parameters are reduced by utilizing the light-cone wave function for $B_c$ meson. It is found that the predicted branching ratios range from $10^{-6}$ up to $10^{-2}$ and could be measured by the future LHCb experiment. Our prediction for the ratio of branching fractions $\frac{\mathcal {BR}(B_c^+\rightarrow J/Ψπ^+)}{\mathcal {BR}(B_c^+\rightarrow J/Ψμ^+ν_μ)}$ is in good agreement with the data. For $B_c\rightarrow V l ν_l$ decays, the relative contributions of the longitudinal and transverse polarization are discussed in different momentum transfer squared regions. These predictions will be tested on the ongoing and forthcoming experiments.
description: 12 pages, 3 figures, 5 tables
Light Bridge in a Developing Active Region. II. Numerical Simulation of Flux Emergence and Light Bridge Formation
Creators: name: Toriumi, Shin
name: Cheung, Mark C. M.
name: Katsukawa, Yukio
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Light bridges, the bright structure dividing umbrae in sunspot regions, show various activity events. In Paper I, we reported on analysis of multi-wavelength observations of a light bridge in a developing active region (AR) and concluded that the activity events are caused by magnetic reconnection driven by magnetconvective evolution. The aim of this second paper is to investigate the detailed magnetic and velocity structures and the formation mechanism of light bridges. For this purpose, we analyze numerical simulation data from a radiative magnetohydrodynamics model of an emerging AR. We find that a weakly-magnetized plasma upflow in the near-surface layers of the convection zone is entrained between the emerging magnetic bundles that appear as pores at the solar surface. This convective upflow continuously transports horizontal fields to the surface layer and creates a light bridge structure. Due to the magnetic shear between the horizontal fields of the bridge and the vertical fields of the ambient pores, an elongated cusp-shaped current layer is formed above the bridge, which may be favorable for magnetic reconnection. The striking correspondence between the observational results of Paper I and the numerical results of this paper provides a consistent physical picture of light bridges. The dynamic activity phenomena occur as a natural result of the bridge formation and its convective nature, which has much in common with those of umbral dots and penumbral filaments.
description: 39 pages, 11 figures, 2 tables, accepted for publication in ApJ
Sketching a little piece of home: Frieda von Buelow imagines German national identity
Creators: name: Hoag, Charles Henry
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: This thesis examines the role of Frieda von Buelow's published memoir Reisescizzen und Tagebuchblaetter aus Deutsch-Ostafrika (1889) in the construction of German national identity following the unification of Germany in 1871. Although better known for her popular works of fiction and her activism for imperial causes such as the acquisition of colonies in Africa, von Buelow's journal demonstrates how German national identity was created in writing as a result of the author's imagination and interaction with other Europeans in European-controlled colonial spaces. To explore the ways in which German national identity is constructed this thesis focuses upon culturally signifcant concepts like Heimat and the author's definition of Germanness. In particular, the use of Heimat within the travelogue, despite being almost exclusively outisde European Germany, exhibits characteristics that are found in previous scholarly analyses of Heimat based exclusively or mostly upon European space and experiences.
Surface-effect corrections for solar-like oscillations using 3D hydrodynamical simulations
Creators: name: Sonoi, T.
name: Samadi, R.
name: Belkacem, K.
name: Ludwig, H. -G.
name: Caffau, E.
name: Mosser, B.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The space-borne missions have provided us with a wealth of high-quality observational data that allows for seismic inferences of stellar interiors. This requires the computation of precise and accurate theoretical frequencies, but imperfect modeling of the uppermost stellar layers introduces systematic errors. To overcome this problem, an empirical correction has been introduced by Kjeldsen et al. (2008, ApJ, 683, L175) and is now commonly used for seismic inferences. Nevertheless, we still lack a physical justification allowing for the quantification of the surface-effect corrections. We used a grid of these simulations computed with the CO$^5$BOLD code to model the outer layers of solar-like stars. Upper layers of the corresponding 1D standard models were then replaced by the layers obtained from the horizontally averaged 3D models. The frequency differences between these patched models and the 1D standard models were then calculated using the adiabatic approximation and allowed us to constrain the Kjeldsen et al. power law, as well as a Lorentzian formulation. We find that the surface effects on modal frequencies depend significantly on both the effective temperature and the surface gravity. We further provide the variation in the parameters related to the surface-effect corrections using their power law as well as a Lorentzian formulation. Scaling relations between these parameters and the elevation (related to the Mach number) is also provided. The Lorentzian formulation is shown to be more robust for the whole frequency spectrum, while the power law is not suitable for the frequency shifts in the frequency range above $ν_{\rm max}$.
description: 11 pages, 14 figures, 4 tables; accepted for publication in Astronomy & Astrophysics
Semi-factorial nodal curves and Néron models of jacobians
Creators: name: Orecchia, Giulio
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: A family of curves over a discrete valuation ring is called semi-factorial if every line bundle on the generic fibre extends to a line bundle on the total space. In the nodal case, we give a sufficient and necessary condition for semi-factoriality, in terms of combinatorics of the dual graph of the special fibre. In particular, we show that performing one blow-up centered at the non-regular closed points yields a semi-factorial model of the generic fibre. As an application, we extend Raynaud's construction of the Néron (lft)-model of the jacobian of the generic fibre of a family of nodal curves to the case where the generic fibre is singular.
description: 33 pages; revised version, to appear in Manuscripta Mathematica
The role of MARCKS in mast cell regulated exocytosis
Creators: name: Haddock, Brookelyn J.
Publisher: name: University of North Carolina at Chapel Hill
Year: 2010

description: MARCKS is implicated as a critical regulator of regulated exocytosis. We studied the role of MARCKS in mast cell regulated exocytosis by comparing the secretion of embryonic hepatic-derived WT and MARCKS-deficient mast cells. Mast cells in suspension showed no secretory differences, however, adherent MARCKS-deficient cells demonstrated enhanced secretion and accelerated release of secretory cargo compared to WT. Surprisingly, application of purported MARCKS inhibitory peptides showed no MARCKS-specific inhibition. Thus, while MARCKS is not essential for mast cell regulated exocytosis, it does negatively modulate secretion. In a separate study, conserved regions of MARCKS were tested for their necessity in the subcellular targeting of MARCKS from the PM to the cytosol, believed to be crucial for its multiple functions. We confirmed this movement using live cell imaging of HEK293 cells transfected with full-length MARCKS constructs. Notably, phosphorylated MARCKS associated with cytosolic membranes, and only myristoylation and PKC phosphorylation affected the translocation process.
BY-COVID D7.3: Report on public engagement activities
Creators: name: Van Hoof, Wannes
name: Genten, Olivia
name: Kalaitzi, Vasso
name: Martin, Corinne
Publisher: name: Zenodo
Year: 2023
Subjects: BY-COVID
Beyond COVID
SARS-CoV-2
Public engagement
Impact
Horizon Europe

description: This deliverable is an overview of public outreach activities in the context of the BY-COVID project. The goal is to inform the public about the project’s goals and activities by creating materials that cover its main objectives and basic values and principles. The strategy deployed to reach a diverse public is twofold: The creation of ten concise, easy to understand, original and creative ‘cases’, each describing a practice, a value or a principle underlying the BY-COVID project. An educational toolkit, ready for use by teachers from all over Europe. These materials were co-developed with relevant work packages to ensure veracity and disseminated through the BY-COVID network and already existing networks where teachers can find educational material for their students.
The Political Effects of Anger about the Economic Crisis
Creators: name: Magni, Gabriele
Publisher: name: University of North Carolina at Chapel Hill Graduate School
Year: 2014
Subjects: subject: Political science
subject: FOS: Political science

description: Anger plays a central role in politics. Previous studies have underlined its mobilization effect, but have not explored variation across individuals nor the impact of anger on political preferences. Since anger has been a widespread negative response to the recent financial and economic crisis, this study explores the impact of anger about the crisis with the 2005-2010 British election panel study. Contrary to previous findings, this article shows that anger has had a demobilizing effect on a large share of the population with low political efficacy. Among these citizens, anger has led to decreased political interest and conventional participation. At the same time, anger about the economic crisis has fueled support for populist and anti-political establishment parties. These findings help explain why some citizens are distancing from traditional political engagement and raise a worrying flag about the emergence of anti-systemic political forces.
Emergent Friedmann dynamics with a quantum bounce from quantum gravity condensates
Creators: name: Oriti, Daniele
name: Sindoni, Lorenzo
name: Wilson-Ewing, Edward
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the effective cosmological dynamics, emerging as the hydrodynamics of simple condensate states, of a group field theory model for quantum gravity coupled to a massless scalar field and reduced to its isotropic sector. The quantum equations of motion for these group field theory condensate states are given in relational terms with respect to the scalar field, from which effective dynamics for spatially flat, homogeneous and isotropic space-times can be extracted. The result is a generalization of the Friedmann equations, including quantum gravity modifications, in a specific regime of the theory corresponding to a Gross-Pitaevskii approximation where interactions are subdominant. The classical Friedmann equations of general relativity are recovered in a suitable semi-classical limit for some range of parameters of the microscopic dynamics. An important result is that the quantum geometries associated with these GFT condensate states are non-singular: a bounce generically occurs in the Planck regime. For some choices of condensate states, these modified Friedmann equations are very similar to those of loop quantum cosmology.
description: 59 pages
Multi-level reinforcement in European climate and energy governance: mobilizing economic interests at the sub-national levels
Creators: name: Jänicke, Martin
name: Quitzow, Rainer
Publisher: name: Technische Universität Berlin
Year: 2017
Subjects: subject: 333.7 Natürliche Ressourcen, Energie und Umwelt
subject: climate policy
subject: energy transition
subject: industrial policy
subject: low-carbon development
subject: multi-level governance
subject: renewable energy

description: This article explains the relatively successful performance of the European Union (EU) in climate and energy governance by two factors: (1) multi-level reinforcement and (2) the mobilization of economic interests at different levels of governance through low-carbon industrial policy. The article adds to the literature by further developing existing arguments on multi-level reinforcement in climate and energy policy. We stress the point that economic co-benefits of climate protection have been successfully mobilized at all levels of governance, including the sub-national level, in recent times. This is illustrated by examples from pioneer countries as well as laggards and waverers in terms of national climate and energy policy. While it is far from certain whether the EU will indeed deliver the needed CO2 reductions to reach its internationally agreed targets, this paper, nevertheless, highlights why the EU system of climate governance remains relatively robust in light of the various challenges it currently faces.
Derecho y acceso a la salud de los migrantes venezolanos en Colombia
Creators: name: Rousset, Brenda Yepez
name: Moreno, Adriana Sabogal
name: Arias, Jenny Garcia
Publisher: name: Zenodo
Year: 2022
Subjects: MIGRACIÓN, INMIGRANTES, DERECHO A LA SALUD, COLOMBIA, VENEZUELA (R B).

description: La República de Colombia es Estado parte de instrumentos internacionales e interamericanos de derechos humanos y humanitarios, y es garante del derecho a la salud de todas las personas, sin discriminación. No obstante, los inmigrantes enfrentan obstáculos de accesibilidad y aceptabilidad de servicios de salud. En este marco, el objetivo de la presente investigación es doble. El primero es examinar la legislación y la jurisprudencia colombiana que dan garantía a la salud de los migrantes internacionales. Segundo, se pretende identificar perfiles de inmigrantes venezolanos que han tenido o no acceso a la salud. Estos perfiles se construyen a partir de los datos recogidos por la primera Encuesta de Calidad de Vida e Integración de los Migrantes Venezolanos en Colombia. La finalidad es caracterizar a la población migrante que es excluida, lo que podría contribuir a su inclusión e integración en Colombia. Por un lado, se constata que la aplicación efectiva de los principios constitucionales de igualdad depende del estatus migratorio de la persona y de la afiliación al Sistema General de Seguridad Social en Salud. Dicho estatus está vinculado con la posesión de documentos de identidad venezolanos, el tiempo de residencia, y el momento de llegada al mencionado país. Por otro lado, se observa que los inmigrantes irregulares solo pueden acceder al servicio de urgencias. La pobreza individual y la vulnerabilidad colectiva caracterizan a los inmigrantes que no han tenido acceso al sistema de salud cuando lo han necesitado.
description: This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 892134
Topological phases of the compass ladder model
Creators: name: Haghshenas, R.
name: Langari, A.
name: Rezakhani, A. T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We characterize phases of the compass ladder model by using degenerate perturbation theory, symmetry fractionalization, and numerical techniques. Through degenerate perturbation theory we obtain an effective Hamiltonian for each phase of the model, and show that a cluster model and the Ising model encapsulate the nature of all phases. In particular, the cluster phase has a symmetry-protected topological order, protected by a specific $\mathbb{Z}_2\times \mathbb{Z}_2$ symmetry, and the Ising phase has a $\mathbb{Z}_2$-symmetry-breaking order characterized by a local order parameter expressed by the magnetization exponent $0.12\pm0.01$. The symmetry-protected topological phases inherit all properties of the cluster phases, although we show analytically and numerically that they belong to different classes. In addition, we study the one-dimensional quantum compass model, which naturally emerges from the compass ladder, and show that a partial symmetry breaking occurs upon quantum phase transition. We numerically demonstrate that a local order parameter accurately determines the quantum critical point and its corresponding universality class.
description: 10 pages, 6 figures
The Turkish partitive as simple nominal phrases: evidence from incorporation and specificity
Creators: name: Gil, Eduardo Hugo
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: Partitive constructions express part-whole relations as in the English phrase two slices of cake. There has been continuing debate about how to treat such phrases syntactically and semantically. That is, which of the partitive construction's constituents is dominant: the 'part' expression two slices or the 'whole' expression cake? We propose that the syntactic structures of partitive and non-partitive noun phrases in Turkish are identical, and that consequently, the dominant constituent for both is the head of the structurally higher NP. For partitives, this higher head of NP corresponds to the 'part' expression. In Turkish, the NP of both partitives and simple, nonpartitive clauses is the complement of a functional Case head: K. For all partitives, the part expression serves as the head of this complement NP. Internal to this NP, an NP corresponding to the 'whole' expression is generated and moved to the specifier position of the Case Phrase, or KP, for case licensing. Evidence is drawn from our fieldwork on specificity, word order, and the distribution of case in Turkish. Alternative semantic and morphosyntactic theories of incorporation and partitivity are considered but found inconsistent with our data. KEY WORDS: partitivity, Case, incorporation, specificity, scrambling, Turkish
Strong-coupling phases of 3D Dirac and Weyl semimetals. A renormalization group approach
Creators: name: Gonzalez, J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the strong-coupling phases that may arise in 3D Dirac and Weyl semimetals under the effect of the long-range Coulomb interaction, considering the many-body theory of these electron systems as a variant of the conventional fully relativistic Quantum Electrodynamics (QED). For this purpose, we apply two different nonperturbative approaches, consisting in the sum of ladder diagrams and taking the limit of a large number N of fermion flavors. We benefit from the renormalizability that the theory shows in both cases to compute the anomalous scaling dimensions of different operators exclusively in terms of the renormalized coupling constant, allowing us to determine the precise location of the singularities signaling the onset of the strong-coupling phases. We show then that the QED of 3D Dirac semimetals has two competing effects at strong coupling. One of them is the tendency to chiral symmetry breaking and dynamical mass generation, which are analogous to the same phenomena arising in the conventional QED at strong coupling. This trend is however outweighed by the strong suppression of electron quasiparticles that takes place at large N, leading to a different type of critical point at sufficiently large interaction strength, shared also by the 3D Weyl semimetals. Overall, the phase diagram of the 3D Dirac semimetals turns out to be richer than that of their 2D counterparts, displaying a transition to a phase with non-Fermi liquid behavior which may be observed in materials hosting a sufficiently large number of Dirac or Weyl points.
description: 29 pages, 11 figures
On a Hybrid Preamble/Soft-Output Demapper Approach for Time Synchronization for IEEE 802.15.6 Narrowband WBAN
Creators: name: Nasr, Imen
name: Atallah, Leila Najjar
name: Cherif, Sofiane
name: Yang, Jianxiao
name: Wang, Kulun
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we present a maximum likelihood (ML) based time synchronization algorithm for Wireless Body Area Networks (WBAN). The proposed technique takes advantage of soft information retrieved from the soft demapper for the time delay estimation. This algorithm has a low complexity and is adapted to the frame structure specified by the IEEE 802.15.6 standard for the narrowband systems. Simulation results have shown good performance which approach the theoretical mean square error limit bound represented by the Cramer Rao Bound (CRB).
Cervical Cancer Screening
Creators: name: Mastikhina, Liza
name: Dowsett, Laura
name: Farkas, Brenlea
name: Clement, Fiona
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: cervical cancer
subject: cervical cancer screening
subject: cytology

description: A rapid review to examine the comparative effectiveness of screening with HPV versus cytology testing for cervical cancer.
Les représentations du VIH, des personnes vivant avec le VIH et des soins dans le matériel pédagogique en sciences infirmières : une analyse de contenu
Creators: name: Cator, Stephany
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: Nursing education
Representations
HIV/AIDS
People living with HIV
Nursing Care
Textbook
Qualitative Content Analysis

description: Depuis les années 90, le Canada utilise des manuels américains traduits et adaptés pour la formation initiale en VIH/sida. Pourtant, à la lumière des écrits, nous savons qu’il existe un écart entre la formation en sciences infirmières et les compétences requises pour prodiguer des soins aux personnes vivant avec le VIH (PVVIH). Consciente de ces lacunes de la formation en VIH/sida et qui, à ce jour, n’ont pas été explorées dans le matériel pédagogique, cette étude met en relief les représentations du VIH, de la PVVIH et des soins et explore les effets de ces représentations tout en proposant des pistes de recommandations. Un devis de recherche qualitatif, de type descriptif, convenait aux objectifs de cette étude. Étant donné la nature de la problématique et des objectifs, une analyse qualitative de contenu était appropriée et privilégiée pour orienter ce projet. La collecte des données s’est déroulée en automne 2015, par l’analyse de 18 manuels scolaires de médecine-chirurgie, utilisés dans la formation initiale. En résumé, les résultats de cette étude ont mis en lumière les représentations du VIH, des PVVIH et des soins qui sont transmises par les manuels scolaires et ont permis d’exposer le type de connaissances, d’attitudes potentielles et éventuelles et de soins qu’engendrent ces sources textuelles. Par l’entremise de ce projet de recherche, il a été possible de proposer des pistes de solutions afin de pallier aux lacunes des manuels scolaires et améliorer le contenu de ces textes en accordant une attention particulière aux connaissances, attitudes et soins que ce contenu peut produire.
Conformal gravity and "gravitational bubbles"
Creators: name: Berezin, V. A.
name: Dokuchaev, V. I.
name: Eroshenko, Yu. N.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We describe the general structure of the spherically symmetric solutions in the Weyl conformal gravity. The corresponding Bach equations are derived for the special type of metrics, which can be considered as the representative of the general class. The complete set of the pure vacuum solutions, consisting of two classes, is found. The first one contains the solutions with constant two-dimensional curvature scalar, and the representatives are the famous Robertson--Walker metrics. We called one of them the "gravitational bubbles", which is compact and with zero Weyl tensor. These "gravitational bubbles" are the pure vacuum curved space-times (without any material sources, including the cosmological constant), which are absolutely impossible in General Relativity. This phenomenon makes it easier to create the universe from "nothing". The second class consists of the solutions with varying curvature scalar. We found its representative as the one-parameter family, which can be conformally covered by the thee-parameter Mannheim--Kazanas solution. We describe the general structure of the energy-momentum tensor in the spherical conformal gravity and construct the vectorial equation that reveals clearly some features of non-vacuum solutions.
description: 7 pages, Talk given at the 9th Alexander Friedmann International Seminar on Gravitation and Cosmology, June 21, 2015 - June 27, 2015, Saint Petersburg, Russia
Temporal characteristics of alveolar stop consonants produced by children with varying levels of velopharyngeal dysfunction
Creators: name: Gaylord, Meredith
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: Children with cleft palate and velopharyngeal dysfunction (VPD) often present with disorders of articulation, resonance, and phonation. Although limited, previous research has shown that children with VPD, as reflected by hypernasality, prolong stop segment durations. A respiratory drive hypothesis was proposed to account for these findings. As a test of this hypothesis, the current study proposed relationships between velopharyngeal closing time and both voice onset time (VOT) and stop gap duration for the phonemes /t/ and /d/. Digital audio recordings were obtained from 20 children with cleft palate who produced the syllables /tcarrot/ and /dcarrot/. Pressure-flow measurements were used to determine velopharyngeal closing durations from the word "hamper." Results indicated a tendency (p >.05) for VOT to decrease as velopharyngeal closing time increased. Results also showed tendencies for children with alveolar clefts to have different segment durations (p > .05). Clinical implications are discussed.
Refinement on non-hydrostatic shallow granular flow model in a global Cartesian coordinate system
Creators: name: Yuan, L.
name: Liu, W.
name: Zhai, J.
name: Wu, S. F.
name: Patra, A. K.
name: Pitman, E. B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Geophysics (physics.geo-ph)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Current shallow granular flow models suited to arbitrary topography can be divided into two types, those formulated in bed-fitted curvilinear coordinates, and those formulated in global Cartesian coordinates. The shallow granular flow model of Denlinger and Iverson \cite{Denlinger2004} and the Boussinesq-type shallow granular flow theory of Castro-Orgaz \emph{et al}. \cite{Castro2014} are formulated in a Cartesian coordinate system (with $z$ vertical), and both account for the effect of nonzero vertical acceleration on depth-averaged momentum fluxes and stress states. In this paper, we first reformulate the vertical normal stress of Castro-Orgaz \emph{et al}. \cite{Castro2014} in a quadratic polynomial in the relative elevation $η$. This form allows for analytical depth integration of the vertical normal stress. We then calculate the basal normal stress based on the basal friction law and scaling analysis. These calculations, plus certain constitutive relations, lead to a refined full non-hydrostatic shallow granular flow model, which is further rewritten in a form of Boussinesq-type water wave equations for future numerical studies. In the present numerical study, we apply the open-source code TITAN2D to numerical solution of a low-order version of the full model involving only a mean vertical acceleration correction term. To cure the numerical instability associated with discretization of the enhanced gravity, we propose an approximate formula for the enhanced gravity by utilizing the hydrostatic pressure assumption in the bed normal direction. Numerical calculations are conducted for several test cases involving steep slopes. Comparison with a bed-fitted model shows that even the simplified non-hydrostatic Cartesian model can be used to simulate shallow granular flows over arbitrary topography.
description: 29 pages