cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A population of intermediate-mass black holes in dwarf starburst galaxies up to redshift=1.5
Creators: name: Mezcua, M.
name: Civano, F.
name: Fabbiano, G.
name: Miyaji, T.
name: Marchesi, S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study a sample of $\sim$50,000 dwarf starburst and late-type galaxies drawn from the COSMOS survey with the aim of investigating the presence of nuclear accreting black holes (BHs) as those seed BHs from which supermassive BHs could grow in the early Universe. We divide the sample into five complete redshift bins up to $z=1.5$ and perform an X-ray stacking analysis using the \textit{Chandra} COSMOS-Legacy survey data. After removing the contribution from X-ray binaries and hot gas to the stacked X-ray emission, we still find an X-ray excess in the five redshift bins that can be explained by nuclear accreting BHs. This X-ray excess is more significant for $z<0.5$. At higher redshifts, these active galactic nuclei could suffer mild obscuration, as indicated by the analysis of their hardness ratios. The average nuclear X-ray luminosities in the soft band are in the range 10$^{39}-10^{40}$ erg s$^{-1}$. Assuming that the sources accrete at $\geq$ 1\% the Eddington rate, their BH masses would be $\leq$ 10$^{5}$ M$_{\odot}$, thus in the intermediate-mass BH regime, but their mass would be smaller than the one predicted by the BH-stellar mass relation. If instead the sources follow the correlation between BH mass and stellar mass, they would have sub-Eddington accreting rates of $\sim$ 10$^{-3}$ and BH masses 1-9 $\times$ 10$^{5}$ M$_{\odot}$. We thus conclude that a population of intermediate-mass BHs exists in dwarf starburst galaxies, at least up to $z$=1.5, though their detection beyond the local Universe is challenging due to their low luminosity and mild obscuration unless deep surveys are employed.
description: 10 pages, 7 figures, ApJ in press
Fostering Innovation: An Analysis of Regional Capacity To Support High-Growth Entrepreneurial Firms Regarding The Cases of The Research Triangle and The Piedmont Triad
Creators: name: Harder, Christopher
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2005

description: This report analyzes the ability of the Research Triangle and Piedmont Triad regions of North Carolina to foster and support high-growth entrepreneurial firms. The analysis is specific to: 1) the role of entrepreneurship in each region's overall economic development strategy, 2) the identification of key environmental factors specific to the Triangle and the Triad that stimulate entrepreneurship, 3) the availability of resources designed to facilitate the formation and growth of entrepreneurial firms, and 4) the identification of organizations critical to entrepreneurial firm growth and the degree to which collaboration/linkage exists between these organizations. Research and interview findings for both the Triangle and the Triad suggest the need for the development of a coherent and visible regional entrepreneurship strategy, a refined role for local and state governments in supporting entrepreneurship, and improved commercialization and technology transfer capabilities at local research universities. Where applicable, lessons learned from the Research Triangle and Piedmont Triad cases regarding entrepreneurship were generalized to assist other regions in their effort to enhance their entrepreneurial environment and encourage further research in the fields of entrepreneurship and economic development.
title: Evaluation of the left atrium in patients with atrial fibrillation with help of Multidetector computer tomography and Magnetic resonance imaging.
Creators: name: Ivanova, Zalina
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cardiac Assist Devices
subject: Technology assessment
subject: MR-Angiography
subject: CT-Angiography
subject: MR-Functional imaging
subject: Cardiovascular system

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Objective: To compare the functional parameters of the left atrium (LA) obtained using multidetector computed tomography (MDCT) and magnetic resonance imaging (MRI) in patients with atrial fibrillation...
Additional file 4 of Climate influences the gut eukaryome of wild rodents in the Great Rift Valley of Jordan
Creators: name: Khadem, Sanaz
name: Berry, David
name: Al-khlifeh, Enas
Publisher: name: figshare
Year: 2024
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Ecology

description: Additional file 4.
How to reduce mental health burden in health care workers during COVID-19? – a scoping review of guideline recommendations
Creators: name: Halms, Theresa
name: Strasser, Martina
name: Kunz, Miriam
name: Hasan, Alkomiet
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Mental Disorders
subject: Psychiatry and Psychology
subject: Psychiatric and Mental Health
subject: Public Health
subject: Medicine and Health Sciences
subject: Occupational Health and Industrial Hygiene
subject: Mental and Social Health

description: The COVID-19 pandemic has posed an unprecedented demand and a huge burden for healthcare workers (HCWs) worldwide, with alarming reports of heightened mental health problems. To counteract these mental health challenges, guidelines and recommendations for the support of HCWs during the COVID-19 pandemic have been published. With this scoping review and guideline evaluation, we aim to provide a critical overview of these guidelines and recommendations and to guide policy makers in establishing respective surveillance and care programs.
Emotional and Gendered Sense-Making through Apologies for Conflict-Related Sexual Violence
Creators: name: Dolan, Emma
Publisher: name: University of Limerick
Year: 2023
Subjects: Education

description: This article examines the specific, gendered discourses, which can be uncovered within political apologies for conflict-related sexual violence (CRSV) and sexualized torture. While apologies are often perceived as either cynical, normatively “empty” gestures that seek to carry out strategic interests or as attempts by political actors to (albeit, often inadequately) emphasize their commitment to addressing past violence and associated cultures of impunity, a feminist analysis of two cases of apology for CRSV (the Japanese imperial “comfort women” and the United States’ infamous Abu Ghraib torture “scandal”) demonstrates that political apologies are rich affective–discursive, deliberately emotional sites at which CRSV is explained and/or accounted for by the state. Specifically, I trace how political apologies operate to discursively and affectively claim and renounce institutional responsibility for CRSV through the common-sense but “slippery” gendered logics of rational/emotional and public/private.
Behavioural consistency in the digital age
Creators: name: Shaw, Heather
name: Taylor, Paul
name: Conchie, Stacey
name: Ellis, David
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Personality and Social Contexts
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: behaviour
subject: consistency
subject: digital
subject: interactionalism
subject: machine learning
subject: smartphone

description: A registration of the data analysis for the paper 'Behavioural consistency in the digital age'
title: Aortic root dilatation in adult patients with repaired tetralogy of Fallot
Creators: name: Warin-Fresse, Karine
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cardiac
subject: MR
subject: Comparative studies
subject: Congenital

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Tetralogy of Fallot (TOF) is the most prevalent cyanotic congenital heart defect with an estimated incidence of 3 to 5% of all patients with congenital heart disease [1]. (Fig 1). Total surgical correction for TOF has been available for 50 years...
Thermodynamic properties in triangular-lattice superconductors
Creators: name: Ma, Xixiao
name: Qin, Ling
name: Zhao, Huaisong
name: Lan, Yu
name: Feng, Shiping
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The study of superconductivity arising from doping a Mott insulator has become a central issue in the area of superconductivity. Within the framework of the kinetic-energy-driven superconducting mechanism, we discuss the thermodynamic properties in triangular-lattice superconductors. It is shown that a sharp peak in the specific-heat appears at the superconducting transition temperature Tc, and then the specific-heat varies exponentially as a function of temperature for the temperatures T
description: 7 pages, 6 figures, added discussions and references, accepted for publication in Journal of Low Temperature Physics
Examining redevelopment of Capital Boulevard, Raleigh NC through the Sustainable Prism: Approaching redevelopment through economic, social, environmental, and livability perspectives
Creators: name: Cienek, Leigh
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: The Capital Boulevard area is an industrial corridor that bounds US 1, the major roadway that shuttles traffic between downtown and Northeast Raleigh. This road slices stable neighborhoods and prevents easy east/west access. The corridor has very limited pedestrian and or bicycle connections. Old industrial uses occupy most of the boulevard and despite its proximity to downtown and other stable neighborhoods, the area has seen very little real estate development. The boulevard is paralleled by the Pigeon House Branch, an impaired urban stream, which feeds into Crabtree Creek and the Neuse River. In the northern section, the boulevard crosses Crabtree creek and its adjacent greenway. The Crabtree Creek greenway is part of a larger long term 20 mile urban loop that will circle the city. In its current state, the greenway loop has no connections to the downtown area. The capital Boulevard area could serve as a vital downtown greenway connection. Additionally greenway development could help mitigate the flood vulnerability of the area. The area is about 95% developed and has numerous properties located in the flood plain. Consequently, redevelopment could prove to be a valuable tool in lowering the flood risk in this area. My master's project will explore potential greenway/boulevard redevelopment strategies in order to build a strong base for a comprehensive corridor plan for the Capital Boulevard area. The first section of the paper will address the need and intent of creating a corridor plan. The second section examines the current land use, transportation, and environmental issues associated with the capital boulevard area. The third section of the paper will present comparable corridor redevelopment case studies. The final section will draw from these case studies as well as the contextual area to present greenway development scenarios.
Additional file 5 of Climate influences the gut eukaryome of wild rodents in the Great Rift Valley of Jordan
Creators: name: Khadem, Sanaz
name: Berry, David
name: Al-khlifeh, Enas
Publisher: name: figshare
Year: 2024
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Ecology

description: Additional file 5.
Effect of interpolation kernels and grid refinement on two way-coupled point-particle simulations
Creators: name: Keane, Nathan A.
name: Apte, Sourabh V.
name: Jain, Suhas S.
name: Khanwale, Makrand A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The predictive capability of two way--coupled point-particle Euler-Lagrange model in accurately capturing particle-flow interactions under grid refinement, wherein the particle size can be comparable to the grid size, is systematically evaluated. Two situations are considered, (i) uniform flow over a stationary particle, and (ii) decaying isotropic turbulence laden with Kolmogorov-scale particles. Particle-fluid interactions are modeled using only the standard drag law, typical of large density-ratio systems. A zonal, advection-diffusion-reaction (Zonal-ADR) model is used to obtain the undisturbed fluid velocity needed in the drag closure. Two main types of interpolation kernels, grid-based and particle size--based, are employed. The effect of interpolation kernels on capturing the particle-fluid interactions, kinetic energy, dissipation rate, and particle acceleration statistics are evaluated in detail. It is shown that the interpolation kernels whose width scales with the particle size perform significantly better under grid refinement than kernels whose width scales with the grid size. Convergence with respect to spatial resolution is obtained with the particle size--based kernels with and without correcting for the self-disturbance effect. While the use of particle size--based interpolation kernels provide spatial convergence and perform better than kernels that scale based on grid size, small differences can still be seen in the converged results with and without correcting for the particle self-disturbance. Such differences indicate the need for self-disturbance correction to obtain the best results, especially when the particles are larger than the grid size.
description: Submitted to International Journal of Multiphase Flow
title: Characterising the myocardial interstitial space: clinical relevance of T1 and extracellular volume mapping
Creators: name: Perea Palazon, Rosario Jesus
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cardiac
subject: MR
subject: Imaging sequences
subject: Tissue characterisation

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Emerging techniques in cardiovascular magnetic resonance (CMR) now permit the acquisition of quantitative measures of myocardium and blood T1 which are fundamental tissue characteristics Fig. 1 . This innovation is important, because allows the...
The built environment, spatial variation in fine particulate matter concentrations, and attributable mortality: a scenario-based land use regression approach
Creators: name: Mansfield, Theodore James
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: A land use regression model is calibrated to predict annual average PM2.5 concentrations throughout the Triangle Region. A risk assessment model is used to predict attributable all-cause mortality from exposure to predicted concentrations. Two alternative land development scenarios are compared to current conditions in terms of air quality and health impacts. This study finds that compact development alone is not an effective intervention to reduce all-cause mortality attributable to fine particulate matter in urban areas; however, regional air quality improves in response to more compact development. While compact development patterns may reduce total vehicle-kilometers travelled and improve regional air quality, the combination of compact urban forms and automobile dependence may result in significant local air quality impacts co-located with area of high population density. Therefore, compact urban forms may exacerbate health impacts associated with fine particulate matter if other policy options to reduce automobile dependence are not simultaneously put forth.
title: Association between Nonalcoholic Fatty Liver Disease and Coronary Artery Disease in Patients with Angina Pectoris
Creators: name: Adibi, Atoosa
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cardiac
subject: Abdomen
subject: Liver
subject: Ultrasound
subject: Diagnostic procedure
subject: Metabolic disorders
subject: Arteriosclerosis

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Nonalcoholic fatty liver disease (NAFLD) is one of the most common hepatic disorders ( 1 ). Prevalence of this disorder is 10-30% in general population and its prevalence is increasing in both developing and developed countries ( 2-5 ). NAFLD has...
Generating subtour elimination constraints for the TSP from pure integer solutions
Creators: name: Pferschy, Ulrich
name: Stanek, Rostislav
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: The traveling salesman problem (TSP) is one of the most prominent combinatorial optimization problems. Given a complete graph G = (V, E) and non-negative distances d for every edge, the TSP asks for a shortest tour through all vertices with respect to the distances d. The method of choice for solving the TSP to optimality is a branch and cut approach. Usually the integrality constraints are relaxed first and all separation processes to identify violated inequalities are done on fractional solutions. In our approach we try to exploit the impressive performance of current ILP-solvers and work only with integer solutions without ever interfering with fractional solutions. We stick to a very simple ILP-model and relax the subtour elimination constraints only. The resulting problem is solved to integer optimality, violated constraints (which are trivial to find) are added and the process is repeated until a feasible solution is found. In order to speed up the algorithm we pursue several attempts to find as many relevant subtours as possible. These attempts are based on the clustering of vertices with additional insights gained from empirical observations and random graph theory. Computational results are performed on test instances taken from the TSPLIB95 and on random Euclidean graphs.
title: PH forscht : Bericht 2016-2018
Creators: name: Boxhofer, Emmerich
name: Reibnegger, Harald
name: Kramer, Martin
Publisher: name: Private Pädagogische Hochschule der Diözese Linz
Year: 2023

description: Grundlage und Fundament aller hochschulischer und universitärer Institutionen ist die Freiheit von Forschung und Lehre. Das klingt beinahe trivial und ist doch gegenwärtig alles andere als selbstverständlich. Noch keine zwei Jahre ist es her, dass hunderttausende Menschen in mehr als 500 Städten weltweit im „march for science“ auf die Straße gingen, um ein Zeichen zu setzen für die Wissenschaft, für die Freiheit von Wissenschaft und Forschung. „Science, not Silence“ war das leitende Motto. Wissenschaft und Forschung, so der Tenor der Veranstaltungen, seien die tragenden Säulen des demokratischen Systems. Der Politikwissenschaftler Anton Pelinka brachte es in Anspielung an die politische Situation in Ungarn und den USA auf den Punkt: Wenn die Freiheit der Wissenschaft gefährdet ist, ist die Freiheit der Demokratie gefährdet. In diesem Zusammenhang erinnere ich auch an die Aussagen des Psychologen Klaus Holzkamp, der einmal meinte, Wissenschaft sei ein nie abgeschlossener Prozess menschlichen Erkenntnisgewinns. Als ein dauernder Kampf gegen Borniertheit, Oberflächlichkeit und Scheinwissen sei sie ein permanentes infrage-Stellen des scheinbar Selbstverständlichen. (Aus dem Vorwort von Rektor Franz Keplinger)
description: PH forscht; 2016-2018
Microwave quantum illumination with correlation-to-displacement conversion
Creators: name: Angeletti, Jacopo
name: Shi, Haowei
name: Lakshmanan, Theerthagiri
name: Vitali, David
name: Zhuang, Quntao
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entanglement is vulnerable to degradation in a noisy sensing scenario, but surprisingly, the quantum illumination protocol has demonstrated that its advantage can survive. However, designing a measurement system that realizes this advantage is challenging since the information is hidden in the weak correlation embedded in the noise at the receiver side. Recent progress in a correlation-to-displacement conversion module provides a route towards an optimal protocol for practical microwave quantum illumination. In this work, we extend the conversion module to accommodate experimental imperfections that are ubiquitous in microwave systems. To mitigate loss, we propose amplification of the return signals. In the case of ideal amplification, the entire six-decibel error-exponent advantage in target detection error can be maintained. However, in the case of noisy amplification, this advantage is reduced to three-decibel. We analyze the quantum advantage under different scenarios with a Kennedy receiver in the final measurement. In the ideal case, the performance still achieves the optimal one over a fairly large range with only on-off detection. Empowered by photon number resolving detectors, the performance is further improved and also analyzed in terms of receiver operating characteristic curves. Our findings pave the way for the development of practical microwave quantum illumination systems.
description: 13 pages, 9 figures
title: MDCT of the pericardium: A teaching primer.
Creators: name: Saad, Jamel
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Diagnostic procedure
subject: CT
subject: Cardiac
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: - To illustrate the anatomoradiology of the pericardium on MDCT - To demonstrate examples of pericardial recesses and their variations. - To provide a pictorial demonstration of the wide variety of the abnormailties of the pericardium and the pitf...
Evaluating a two-tiered parent coaching intervention for young autistic children using the ESDM
Creators: name: van Noorden, Lauren
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Applied Behavior Analysis
subject: Educational Psychology
subject: Education
subject: Social and Behavioral Sciences
subject: Special Education and Teaching
subject: Psychology
subject: FOS: Psychology
subject: Early Childhood Education

description: A spreadsheet of the quantitative data collected during this research. Specifically data regarding parent fidelity in the ESDM, and child outcomes (joint engagement, communication, and imitation).
A review of action estimation methods for galactic dynamics
Creators: name: Sanders, Jason L.
name: Binney, James
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We review the available methods for estimating actions, angles and frequencies of orbits in both axisymmetric and triaxial potentials. The methods are separated into two classes. Unless an orbit has been trapped by a resonance, convergent, or iterative, methods are able to recover the actions to arbitrarily high accuracy given sufficient computing time. Faster non-convergent methods rely on the potential being sufficiently close to a separable potential and the accuracy of the action estimate cannot be improved through further computation. We critically compare the accuracy of the methods and the required computation time for a range of orbits in an axisymmetric multi-component Galactic potential. We introduce a new method for estimating actions that builds on the adiabatic approximation of Schönich & Binney (2012) and discuss the accuracy required for the actions, angles and frequencies using suitable distribution functions for the thin and thick discs, the stellar halo and a star stream. We conclude that for studies of the disc and smooth halo component of the Milky Way the most suitable compromise between speed and accuracy is the Stäckel Fudge, whilst when studying streams the non-convergent methods do not offer sufficient accuracy and the most suitable method is computing the actions from an orbit integration via a generating function. All the software used in this study can be downloaded from https://github.com/jls713/tact.
description: 15 pages, 7 figures, accepted for publication in MNRAS (new subsection on resonant trapping), associated software downloadable at https://github.com/jls713/tact
Safety Under Uncertainty: Tight Bounds with Risk-Aware Control Barrier Functions
Creators: name: Black, Mitchell
name: Fainekos, Georgios
name: Hoxha, Bardh
name: Prokhorov, Danil
name: Panagou, Dimitra
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: We propose a novel class of risk-aware control barrier functions (RA-CBFs) for the control of stochastic safety-critical systems. Leveraging a result from the stochastic level-crossing literature, we deviate from the martingale theory that is currently used in stochastic CBF techniques and prove that a RA-CBF based control synthesis confers a tighter upper bound on the probability of the system becoming unsafe within a finite time interval than existing approaches. We highlight the advantages of our proposed approach over the state-of-the-art via a comparative study on an mobile-robot example, and further demonstrate its viability on an autonomous vehicle highway merging problem in dense traffic.
description: 7 pages, 4 figures, 5 tables, accepted at ICRA 2023
title: Tubercular Myocarditis by Cardiac MR: A Pictoral Essay
Creators: name: Bhatia, Mona
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Infection
subject: Education
subject: MR
subject: Cardiovascular system
subject: Cardiac

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Tuberculosis (TB), caused by Mycobacterium tuberculosis, is a major health care problem in India. While pulmonary manifestations are well characterized cardiac tuberculosis is rare. It is estimated that 1% of all cases of tuberculosis have cardiac...
title: Cardiac findings on chest ACT without electrography gating to rule out pulmonary embolism, an atlas
Creators: name: Garcia Benedito, Paulino
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Emergency
subject: Cardiac
subject: CT-Angiography
subject: Computer Applications-Detection, diagnosis
subject: Diagnostic procedure
subject: Calcifications / Calculi
subject: Hyperplasia / Hypertrophy

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The heart and mediastinal structures can be overlooked on chest angiographic computer tomography (ACT). In this atlas we will describe the types of pertinent reportable cardiovascular findings that can be detected on pulmonary ACT without...
Planning to Sustain Small Farms: An Upgrading Strategy for Farmers and Institutions
Creators: name: Santos, Janelle
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: Small-scale agriculture produces direct economic benefits associated with food and fiber production, along with a variety of rural amenities valued by many communities, including scenic view sheds, agrarian cultural heritage, wildlife habitat, a personal connection to food, and enhanced local food security (Hellerstein et al., 2001; Rossett, 2000). In such areas, county, state, and federal governments have implemented land use policies or fiscal incentives that prevent the development of agricultural land. These policies, though, do not target the economic disadvantages that may inhibit the land from remaining in cultivation. Using case-based research, this paper identifies how farmers and local institutions, such as county governments, farm extension agencies and agricultural marketing organizations, can maximize the economic viability of small-scale farming through collaborative strategies that promote collective efficiencies, trust, and intersectoral linkages. As this case presents, these three conditions have enhanced the production and marketing capabilities of a regional small-scale farming industry and enabled it to increase earnings and production and develop stronger linkages with the regional economy and community.
Linear and cubic response to the initial eccentricity in heavy-ion collisions
Creators: name: Noronha-Hostler, Jacquelyn
name: Yan, Li
name: Gardim, Fernando G.
name: Ollitrault, Jean-Yves
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We study the relation between elliptic flow, $v_2$ and the initial eccentricity, $\varepsilon_2$, in heavy-ion collisions, using hydrodynamic simulations. Significant deviations from linear eccentricity scaling are seen in more peripheral collisions. We identify the mechanism responsible for these deviations as a cubic response, which we argue is a generic property of the hydrodynamic response to the initial density profile. The cubic response increases elliptic flow fluctuations, thereby improving agreement of initial condition models with experimental data.
description: 7 pages. v2: bugs corrected in Figs.1,2,4,5, text unchanged
title: Development of a novel image operation system with finger movement using a motion sensor for angiography in operating rooms
Creators: name: Ogura, Toshihiro
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Computer applications
subject: Vascular
subject: Interventional vascular
subject: Catheter arteriography
subject: Catheter venography
subject: CAD
subject: Arterial access
subject: Equipment
subject: Technical aspects
subject: Cardiac Assist Devices
subject: Cancer
subject: Aneurysms

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Interventional radiology is based on image-guided procedures for diagnosis and treatment of diseases in all organ systems with use of medical imaging equipment such as ultrasonography, x-ray fluoroscopy, and computed tomography [1]. For...
Compound Disasters: Federal buyouts and the Great Recession's effect on Black and white household resilience
Creators: name: Durfee, Colleen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: The intention of the buyout program is to reduce vulnerability by removing homes from the floodplain. But vulnerability is not just measured by physical exposure to risk. It is the capacity to anticipate, cope with, resist, and recover from shocks (Fothergill & Peek 1999, cited Blaikie et al., 1994), which must account for the social, economic, and political context in which a disaster occurs. While experts see the buyout program as a viable hazard mitigation strategy, buyouts may have unknown consequences as they permanently alter the physical, social, and economic landscape. To better understand their impact, I studied the effect of the buyouts in North Carolina following Fran and Floyd after the Recession on communities that participated. The findings indicate that buyout neighborhoods have a larger percent Black population and are more economically stressed than those without buyouts. Buyout neighborhoods also fared worse after the Recession than those without buyouts. When assessing the impact of buyouts on home purchase loan approvals, the likelihood of being approved for a conventional home purchase loan increases with the neighborhood’s concentration of buyouts from Fran and Floyd. This holds true both before and after the Recession. However, this trend only proved statistically significant for Black applicants after the Recession. Buyout neighborhoods therefore provide greater opportunity for Black home-ownership. Yet, their proximity to the floodplain undermines the  likelihood of such an investment being a secure wealth building opportunity.
A Celestial Route to AdS Bulk Locality
Creators: name: Bhat, Faizan
name: Zahed, Ahmadullah
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We prove a precise form of AdS bulk locality by deriving analytical two-sided bounds on bulk Wilson coefficients. Our bounds are on the Wilson coefficients themselves, rather than their ratios, as is typically found in the literature. Inspired by the Celestial amplitudes program in flat space, we perform a Celestial transform of the CFT Mellin amplitude of four identical scalars. Using the crossing symmetric dispersion relation (CSDR), we express the resulting amplitude in terms of crossing symmetric conformal partial waves. The partial waves satisy remarkable positivity properties which along with the unitarity of the CFT prove sufficient to derive the bounds. We then employ our methods in the limit of large AdS radius and recover known bounds on flat space Wilson coefficients and new bounds on their large radius corrections. We check that the planar Mellin amplitude of four stress-tensor multiplets in $\mathcal{N} = 4$ SYM satisfies our bounds. Finally, using null constraints, we derive a form of low-spin dominance in AdS EFTs. We find that the low-spin dominance is strongest in flat space and weakens as we move away from flat space towards higher AdS curvature.
description: 21 pages, 1 figure, accepted for publication in JHEP
The contribution of young core-collapse supernova remnants to the X-ray emission near quiescent supermassive black holes
Creators: name: Rimoldi, Alex
name: Rossi, Elena Maria
name: Costantini, Elisa
name: Zwart, Simon Portegies
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Appreciable star formation, and, therefore, numerous massive stars, are frequently found near supermassive black holes (SMBHs). As a result, core-collapse supernovae in these regions should also be expected. In this paper, we consider the observational consequences of predicting the fate of supernova remnants (SNRs) in the sphere of influence of quiescent SMBHs. We present these results in the context of `autarkic' nuclei, a model that describes quiescent nuclei as steady-state and self-sufficient environments where the SMBH accretes stellar winds with no appreciable inflow of material from beyond the sphere of influence. These regions have properties such as gas density that scale with the mass of the SMBH. Using predictions of the X-ray lifetimes of SNRs originating in the sphere of influence, we make estimates of the number of core collapse SNRs present at a given time. With the knowledge of lifetimes of SNRs and their association with young stars, we predict a number of core-collapse SNRs that grows from ~1 around Milky Way-like (4.3 x 10^6 Msun) SMBHs to ~100 around the highest mass (10^10 Msun) SMBHs. The presence of young SNRs will amplify the X-ray emission near quiescent SMBHs, and we show that the total core-collapse SNR emission has the potential to influence soft X-ray searches for very low-luminosity SMBHs. Our SNR lifetime estimates also allow us to predict star formation rates in these regions. Assuming a steady-state replenishment of massive stars, we estimate a star formation rate density of 2 x 10^-4 Msun/yr/pc^2 around the Milky Way SMBH, and a similar value around other SMBHs due to a weak dependence on SMBH mass. This value is consistent with currently available observations.
description: 13 pages, 8 figures, accepted for publication in MNRAS
title: Reproducibility of LV volume and mass measurements on stress and rest rubidium-82 perfusion imaging
Creators: name: Nasim, Muhammad
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cardiac
subject: PET-CT
subject: PET
subject: Efficacy studies

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The aim of this analysis is to determine the correlation between LV mass and volumes obtained during rest and stress rubidium-82 myocardial perfusion imaging...
title: Magnetic resonance imaging (MRI) in the diagnosis of ischemic heart disease (IHD).
Creators: name: Tanasichuk, Volodymir
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Ischaemia / Infarction
subject: Arteriosclerosis
subject: Aneurysms
subject: Contrast agent-intravenous
subject: MR-Functional imaging
subject: MR
subject: Cardiac

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Epidemiologicallyischemic heart disease (IHD) remains one of the common diseases among people older than 40 years (men in the big cities of Europe , it is about 4-6 %), it is the most frequent cause of cardiac deaths (up to 50%) [1]. The importance...
Risk-based Security Measure Allocation Against Injection Attacks on Actuators
Creators: name: Anand, Sribalaji C.
name: Teixeira, André M. H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: This article considers the problem of risk-optimal allocation of security measures when the actuators of an uncertain control system are under attack. We consider an adversary injecting false data into the actuator channels. The attack impact is characterized by the maximum performance loss caused by a stealthy adversary with bounded energy. Since the impact is a random variable, due to system uncertainty, we use Conditional Value-at-Risk (CVaR) to characterize the risk associated with the attack. We then consider the problem of allocating the security measures which minimize the risk. We assume that there are only a limited number of security measures available. Under this constraint, we observe that the allocation problem is a mixed-integer optimization problem. Thus we use relaxation techniques to approximate the security allocation problem into a Semi-Definite Program (SDP). We also compare our allocation method $(i)$ across different risk measures: the worst-case measure, the average (nominal) measure, and $(ii)$ across different search algorithms: the exhaustive and the greedy search algorithms. We depict the efficacy of our approach through numerical examples.
description: Accepted to IEEE Open Journal of Control Systems (OJ-CSYS)
title: Recoupling of cardiac ventricle pump function after surgical ventricle restoration: a cardiac magnetic resonance study
Creators: name: Petrini, Marcello
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cardiac
subject: MR
subject: Surgery
subject: Segmentation

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To evaluate right ventricle function after surgical ventricle restoration (SVR) on cardiac magnetic resonance...
Rethinking the Outmoded Industrial City: Inferences From Los Angeles' Policy Documents and Practical Application
Creators: name: Kornberg, Michelle
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2004

description: Drawing on the experience of Los Angeles, Ca, this paper develops a framework for evaluating citywide industrial redevelopment policies and reviews the effectiveness of such policies. This research culminates with recommendations for additional government action needed to turn underutilized industrial property into productive uses. The paper begins by identifying the current industrial space market in the U.S., given shifting economic trends and a recent economic downturn, and then narrows to a discussion of the Los Angeles market. This section is followed by an analytical review of local legislation and initiatives designed to 1) facilitate the conversion of obsolete industrial space to meet the area's growing housing needs and 2) organize under-producing industrial land in a way that attracts employment and revenue generating businesses. The future success of Los Angeles' two-pronged approach to industrial redevelopment depends upon the City's ability to address the need for environmental cleanup assistance, the lack of contiguous tracks of industrial-suited land, and the inclusion of practices that support infill development. Such obstacles are not unique to the Los Angeles region, thus the programs and policies ultimately recommended in this paper extend beyond the Southern California economy. These recommendations are based, in part, on the net positive results demonstrated by other metropolitan areas and include: 1) the addition of infill incentives that remove barriers to development and improve the financial viability of infill projects; 2) the creation of a database that identifies vacant and underutilized parcels of land and classifies them as good, fair or poorly suited for development; 3) the use of revenue generating municipal bonds and loan programs to finance environmental cleanup; and, 4) the lobbying for state legislation that limits purchaser's liability for contaminated sites. Given the wide-scale applicability of such tactics, the lessons learned from the Los Angeles experience are relevant to any city dealing with a surplus of obsolete industrial space and outmoded industrial land use patterns.
From Effective Interactions Extracted Using Hi-C Data to Chromosome Structures in Conventional and Inverted Nuclei
Creators: name: Shin, Sucheol
name: Shi, Guang
name: Thirumalai, D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Contact probabilities between loci, separated by arbitrary genomic distance, for a number of cell types have been reported using genome-wide chromosome conformation capture (Hi-C) experiments. How to extract the effective interaction energies between active euchromatin (A) and inactive heterochromatin (B) directly from the experimental data, without an underlying polymer model, is unsolved. Here, we first calculate the pairwise effective interaction energies (A-A, B-B, or A-B) for interphase chromosomes based on Hi-C data by using the concept of Statistical Potential (SP), which assumes that the interaction energy between two loci is proportional to the logarithm of the frequency with which they interact. Polymer simulations, using the extracted interaction energy values $\textit{without any parameter}$, reproduce the segregation between A and B type loci (compartments), and the emergence of topologically associating domains (TADs), features that are prominent in the Hi-C data for interphase chromosomes. Remarkably, the values of the SP automatically satisfy the Flory-Huggins phase separation criterion for all the chromosomes, which explains the mechanism of compartment formation in interphase chromosomes. Strikingly, simulations using the SP that accounts for pericentromeric constitutive heterochromatin (C-type), show hierarchical structuring with the high density of C-type loci in the nuclear center, followed by localization of the B type loci, with euchromatin being confined to the nuclear periphery, which differs from the expected nuclear organization of interphase chromosomes, but is in accord with the imaging data of the inverted nuclei found in photoreceptor rods in nocturnal mammals. The proposed parameter free method and applications show that compartment formation in conventional and inverted nuclei is best explained by the inequality between the effective interaction energies.
title: CT measurements of aortic annulus in patients who underwent TAVI: differences between systolic and diastolic phase.
Creators: name: Vallone, Andrea
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cardiac Assist Devices
subject: Computer Applications-3D
subject: CT-Angiography
subject: Cardiac

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The aim of our study is to evaluate wether there are significant differences in Computed Tomography (CT) measurements of aortic annulus between systolic and diastolic phase in patients who underwent Transcatheter Aortic Valve Implantation...
The young nuclear stellar disc in the SB0 galaxy NGC 1023
Creators: name: Corsini, E. M.
name: Morelli, L.
name: Pastorello, N.
name: Bontà, E. Dalla
name: Pizzella, A.
name: Portaluri, E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Small kinematically-decoupled stellar discs with scalelengths of a few tens of parsec are known to reside in the centre of galaxies. Different mechanisms have been proposed to explain how they form, including gas dissipation and merging of globular clusters. Using archival Hubble Space Telescope imaging and ground-based integral-field spectroscopy, we investigated the structure and stellar populations of the nuclear stellar disc hosted in the interacting SB0 galaxy NGC 1023. The stars of the nuclear disc are remarkably younger and more metal rich with respect to the host bulge. These findings support a scenario in which the nuclear disc is the end result of star formation in metal enriched gas piled up in the galaxy centre. The gas can be of either internal or external origin, i.e. from either the main disc of NGC 1023 or the nearby satellite galaxy NGC 1023A. The dissipationless formation of the nuclear disc from already formed stars, through the migration and accretion of star clusters into the galactic centre is rejected.
description: 11 pages, 5 figures, MNRAS in press, updated references
Access to Transit and Unemployment Rates for People with Physical Disabilities in Baltimore City, Maryland
Creators: name: Handy, Sumner
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: According to research we review in the next section, improvements to people’s economic conditions can be triggered by improvements to their access to transit. Legislation like the Personal Responsibility and Work Opportunity Reconciliation Act of 1996 (also known as the welfare reform act) and the Transportation Equity Act for the 21st Century affirm that this idea has gained national momentum. However, there has been comparatively little discussion about the needs of disabled people regarding their access to transit, even as people with physical disabilities are among the most economically vulnerable groups. This report explores whether the relationship between access to transit and employment rates is the same for people with disabilities as for able-bodied people.