cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
SU(2) Gauge Theory in $2+1$ Dimensions on a Plaquette Chain Obeys the Eigenstate Thermalization Hypothesis
Creators: name: Yao, Xiaojun
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We test the eigenstate thermalization hypothesis (ETH) for 2+1 dimensional SU(2) lattice gauge theory. By considering the theory on a chain of plaquettes and truncating basis states for link variables at $j=1/2$, we can map it onto a quantum spin chain with local interactions and numerically exactly diagonalize the Hamiltonian for reasonably large lattice sizes. We find energy level repulsion in momentum sectors with no remaining discrete symmetry. We study two local observables made up of Wilson loops and calculate their matrix elements in the energy eigenbasis, which are shown consistent with the ETH.
description: 7+6 pages, 4+4 figures, v3: published version, minor change compared with v2
Citizen Participation in the Planning Process: A Case Study of the Stapleton Redevelopment Project
Creators: name: Valentine, Jennifer
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006
Subjects: Stapleton International Airport

description: Early and consistent citizen involvement in the planning process helps ensure that a plan meets the needs of the community, creates a sense of ownership, enhances citizen buy-in and trust, educates the public, assists in avoiding confrontations by building consensus and anticipating public concerns, increases the likelihood of successful implementation, strengthens comprehensive plans, and improves overall satisfaction with the final product (Burby, 2003; Creighton, 2005). However, despite the recognized merits of citizen participation in the planning process, in many cases planners either ignore public input or fail to adequately incorporate citizen concerns into final plans (King et al., 1998 & Lowry et al., 1997). This research seeks to determine how planners can encourage meaningful citizen participation in the planning process, specifically for large public projects. A case study is used to examine the role of citizen involvement in planning the redevelopment of the former Stapleton International Airport site in Denver, Colorado. The plan for Stapleton's transformation from an airport to a mixed-use community was created with significant citizen input, with a continued commitment to public involvement, and outreach throughout the site's redevelopment. Although some factors associated with the Stapleton project are fairly unique, this research affirms that early and consistent citizen involvement in the planning process can enhance public buy-in and overall satisfaction and reduce implementation barriers. In this case, the impetus for participation was largely citizen-driven. Public involvement has been sustained as a result of committed individual citizens, supportive leadership, and the formation of durable citizen groups. This research was limited in scope due to time, resource and location constraints. In order to glean results that are more easily generalized and informative, future studies should be conducted using several cases, either similar or contrasting in nature.
Approaches to Improving the Accuracy of Machine Learning Models in Requirements Elicitation Techniques Selection
Creators: name: Gobov, Denys
name: Solovei, Olga
Publisher: name: arXiv
Year: 2023
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Selecting techniques is a crucial element of the business analysis approach planning in IT projects. Particular attention is paid to the choice of techniques for requirements elicitation. One of the promising methods for selecting techniques is using machine learning algorithms trained on the practitioners' experience considering different projects' contexts. The effectiveness of ML models is significantly affected by the balance of the training dataset, which is violated in the case of popular techniques. The paper aims to analyze the efficiency of the Synthetic Minority Over-sampling Technique usage in Machine Learning models for elicitation technique selection in case of the imbalanced training dataset and possible ways for positive feature importance selection. The computational experiment results confirmed the effectiveness of using the proposed approaches to improve the accuracy of machine learning models for selecting requirements elicitation techniques. Proposed approaches can be used to build Machine Learning models for business analysis activities planning in IT projects.
Microscopic quantum interference in excitonic condensation of Ta$_2$NiSe$_5$
Creators: name: Sugimoto, Koudai
name: Kaneko, Tatsuya
name: Ohta, Yukinori
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The microscopic quantum interference associated with excitonic condensation in Ta$_2$NiSe$_5$ is studied in the BCS-type mean-field approximation. We show that in ultrasonic attenuation the coherence peak appears just below the transition temperature $T_{\rm c}$ whereas in NMR spin-lattice relaxation the rate rapidly decreases below $T_{\rm c}$; these observations can offer a crucial experimental test for the validity of the excitonic condensation scenario in Ta$_2$NiSe$_5$. We also show that the excitonic condensation manifests itself in a jump of the heat capacity at $T_{\rm c}$ as well as in softening of the elastic shear constant, in accordance with the second-order phase transition observed in Ta$_2$NiSe$_5$.
description: 5 pages, 3 figures, Supplemental Material
METICOS Deliverable D5.2 Technology Acceptance User Survey Results
Creators: name: Geyer, Constanze
name: Sackl, Andreas
name: Schatz, Raimund
name: Aumayr, Georg
Publisher: name: Zenodo
Year: 2022

description: Deliverable D5.2 provides an overview of the Technology Acceptance Modeling (TAM) data collection activities that took place during Iteration 1 of the METICOS project. To this end, it describes the goals, concept and design of the data collection surveys performed and provides a descriptive analysis of the resulting data.
 This deliverable consists of two main parts: the first part discusses the pilot survey of project Iteration 1, while the second part focuses on the main survey. Both surveys targeted EU citizens in their role as travelers.
 Finally, conclusions and findings from the results are derived, particularly as regards upcoming data collection and modeling activities in work package WP5. Among those, key findings and conclusions are: Size and quality of the dataset resulting from the main survey were found to be sufficient for TAM Modeling. TAM factors are well represented by their underlying items and correlations among factors follow plausible, explainable patterns. Issues such as occasionally observed small effect sizes and scoring differences between user groups as well as the fact that fully balancing of age groups could not be fully realized, have to be taken into account in future analysis and modeling.
Efficient Production of High-energy Nonthermal Particles during Magnetic Reconnection in a Magnetically-dominated Ion-Electron Plasma
Creators: name: Guo, Fan
name: Li, Xiaocan
name: Li, Hui
name: Daughton, William
name: Zhang, Bing
name: Lloyd-Ronning, Nicole
name: Liu, Yi-Hsin
name: Zhang, Haocheng
name: Deng, Wei
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Magnetic reconnection is a leading mechanism for dissipating magnetic energy and accelerating nonthermal particles in Poynting-flux dominated flows. In this letter, we investigate nonthermal particle acceleration during magnetic reconnection in a magnetically-dominated ion-electron plasma using fully kinetic simulations. For an ion-electron plasma with the total magnetization $σ_0=B^2/(4πn(m_i+m_e)c^2)$, the magnetization for each species is $σ_i \sim σ_0$ and $σ_e \sim (m_i/m_e) σ_0$, respectively. We have studied the magnetically dominated regime by varying $σ_{e} = 10^3 - 10^5$ with initial ion and electron temperatures $T_i = T_e = 5 - 20 m_ec^2$ and mass ratio $m_i/m_e = 1 - 1836$. The results demonstrate that reconnection quickly establishes power-law energy distributions for both electrons and ions within several ($2-3$) light-crossing times. For the cases with periodic boundary conditions, the power-law index is $1
description: 7 pages, 5 figures. ApJL in press
Hierarchical Codebook Design for Beamforming Training in Millimeter-Wave Communication
Creators: name: Xiao, Zhenyu
name: He, Tong
name: Xia, Pengfei
name: Xia, Xiang-Gen
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In millimeter-wave communication, large antenna arrays are required to achieve high power gain by steering towards each other with narrow beams, which poses the problem to efficiently search the best beam direction in the angle domain at both Tx and Rx sides. As the exhaustive search is time consuming, hierarchical search has been widely accepted to reduce the complexity, and its performance is highly dependent on the codebook design. In this paper, we propose two basic criteria for the hierarchical codebook design, and devise an efficient hierarchical codebook by jointly exploiting sub-array and deactivation (turning-off) antenna processing techniques, where closed-form expressions are provided to generate the codebook. Performance evaluations are conducted under different system and channel models. Results show superiority of the proposed codebook over the existing alternatives.
description: 13 pages, 11 figures. To appear in IEEE Trans. Wireless Commn. This paper proposes the BMW-SS approach to design a fully-hierarchical codebook for mmWave communications
title: A comparison between Left Ventricular Non-Compaction Disease and Hypertrabeculated Left Ventricle in β-Thalassemia Major.
Creators: name: Cannizzaro, Maria Teresa
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cardiac
subject: Cardiovascular system
subject: MR
subject: Computer Applications-General
subject: Diagnostic procedure
subject: Experimental investigations
subject: Hyperplasia / Hypertrophy
subject: Haematologic diseases

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Left ventricular non-compaction (LVNC) is a cardiomyopathy characterized by a thin, compacted epicardial layer and an extremely thick endocardial layer with prominent trabeculation and deep recesses that communicate with the left ventricular cavity...
Optical excitation of surface plasma waves without grating structures
Creators: name: Deng, Hai-Yao
name: Liu, Feng
name: Wakabayashi, Katsunori
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Surface plasma waves (SPWs) are usually discussed in the context of a metal in contact with a dielectric. However, they can also exist between two metals. In this work we study these bimetallic waves. We find that their dispersion curve always cuts the light line, which allows direct optical coupling without surface grating structures. We propose practical schemes to excite them and the excitation efficiency is estimated. We also show that these waves can be much less lossy than conventional SPWs and their losses can be systematically controlled, a highly desirable attribute in applications. Conducting metal oxides are apt for experimental studies.
description: 12 pages, 4 figs
title: Tortuosity and Curvature of the Coronary Arteries in Relation with Coronary Artery Disease
Creators: name: Tuncay, Volkan
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cardiac
subject: Arteries / Aorta
subject: CT-Angiography
subject: CAD
subject: Haemodynamics / Flow dynamics

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Coronary artery disease (CAD) is one of the leading causes of mortality in the Western world 1 . CAD is caused by the development of the atherosclerotic plaques over the time. The plaque development has a very complex mechanism and has not been...
Adjusting to Innovation and Entrepreneurship: Institutional Entrepreneurship in Rhode Island's Knowledge Economy
Creators: name: Cole, Timothy Schumann
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: This introduction has outlined the issues surrounding institutional entrepreneurship in adjusting regional economies by suggesting that the process of developing new tools for the knowledge economy is essentially a social process. An argument has been presented, which submits that by studying the social structures which accelerate or slow down the institutional learning process, the effectiveness of institutional entrepreneurship can be strengthened. This argument has been placed in a perspective that distinguishes between agency based economic development and a social mobilization approach that focuses on leveraging regional assets. Additionally, the Providence region has been introduced as a case study, which will provide examples of institutional entrepreneurship during economic adjustment. The primary investigation of institutional change in Rhode Island will fall upon the regional innovation system and the enterprise development system. The method of analysis used for this paper includes research on economic development initiatives in the Providence region based on reports as well as a series of interviews conducted with economic development professionals there over a year long period. The information gathered on the Providence region from reports and interviews will be combined with a literature review which extends across several academic fields, including entrepreneurship, economic development planning, institutionalism, enterprise development, and innovation systems. Moving forward the paper will detail the ongoing process of economic adjustment in the Providence region, while providing a theoretical background which will assist in analyzing the effectiveness of the region's cooperative social networks along with the institutional capacities that it creates.
Dynamical transition from localized to uniform scrambling in locally hyperbolic systems
Creators: name: Steinhuber, Mathias
name: Schlagheck, Peter
name: Urbina, Juan-Diego
name: Richter, Klaus
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Fast scrambling of quantum correlations, reflected by the exponential growth of Out-of-Time-Order Correlators (OTOCs) on short pre-Ehrenfest time scales, is commonly considered as a major quantum signature of unstable dynamics in quantum systems with a classical limit. In two recent works [Phys. Rev. Lett. 123, 160401 (2019)] and [Phys. Rev. Lett. 124, 140602 (2020)], a significant difference in the scrambling rate of integrable (many-body) systems was observed, depending on the initial state being semiclassically localized around unstable fixed points or fully delocalized (infinite temperature). Specifically, the quantum Lyapunov exponent $λ_{\rm q}$ quantifying the OTOC growth is given, respectively, by $λ_{\rm q}=2λ_{\rm s}$ or $λ_{\rm q}=λ_{\rm s}$ in terms of the stability exponent $λ_{\rm s}$ of the hyperbolic fixed point. Here we show that a wave packet, initially localized around this fixed point, features a distinct dynamical transition between these two regions. We present an analytical semiclassical approach providing a physical picture of this phenomenon and support our findings by extensive numerical simulations in the whole parameter range of locally unstable dynamics of a Bose-Hubbard dimer. Our results suggest that the existence of this crossover is a hallmark of unstable separatrix dynamics in integrable systems, thus opening the possibility to distinguish the latter, on the basis of this particular observable, from genuine chaotic dynamics generally featuring uniform exponential growth of the OTOC.
description: 12 pages, 7 figures
Leading three-baryon forces from SU(3) chiral effective field theory
Creators: name: Petschauer, Stefan
name: Kaiser, Norbert
name: Haidenbauer, Johann
name: Meißner, Ulf-G.
name: Weise, Wolfram
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Leading three-baryon forces are derived within SU(3) chiral effective field theory. Three classes of irreducible diagrams contribute: three-baryon contact terms, one-meson exchange and two-meson exchange diagrams. We provide the minimal non-relativistic terms of the chiral Lagrangian, that contribute to these diagrams. SU(3) relations are given for the strangeness S=0 and -1 sectors. In the strangeness-zero sector we recover the well-known three-nucleon forces from chiral effective field theory. Explicit expressions for the lambda-nucleon-nucleon chiral potential in isospin space are presented.
description: 14 pages, 5 figures, 4 tables; v2: published version, minor changes
Planning for Earthquakes in the Wasatch Front
Creators: name: Liechty, Sara
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003

description: This document addresses some of the strategies outlined in Objective 3 (Improve the Seismic Safety of Buildings and Infrastructure) of the Strategic Plan for Earthquake Safety in Utah (1995). Specifically this report investigates the problem of existing buildings in need of seismic retrofitting and the seismic vulnerability of future development in the Wasatch Front. It is divided into four parts that outline the problem, mitigation methods, existing policies, and recommendations for future action on the part of the Utah Seismic Safety Commission, the Utah State Legislature, and other state agencies. Part 1 investigates the need for seismic safety planning along the Wasatch Front. The earthquake risk is significant. The potential damage of a major earthquake is examined in terms of the likelihood of an earthquake, geologic conditions that increase potential damage, existing and future land use, and the prevalence of highly vulnerable unreinforced masonry buildings. Part 1 also examines the reasons building owners decide to invest in retrofitting or ignore the problem, including awareness of an earthquake risk, cost, and whether the risk can be passed off to society. Part 2 identifies different devices that may be used to promote retrofitting of seismically vulnerable buildings as well as land use planning techniques to mitigate the vulnerability of future development to earthquake damage. The effectiveness, feasibility, equity, and efficiency of these devices are examined. A successful program for retrofitting existing buildings must also include adequate incentives. In addition, adequate enforcement is crucial to many of the methods for retrofitting existing buildings and reviewing new development plans. Part 3 examines state laws, policies, and programs that require or encourage the retrofitting of existing buildings. Efforts by municipalities, school districts, and other organizations are also discussed. Existing laws, policies and programs do not adequately address the problem. More steps must be taken to improve the seismic safety of existing buildings. Part 4 contains recommendations to the Utah Seismic Safety Commission and the Utah State Legislature. Specific actions that will improve seismic safety are suggested. These include dedicated funding for seismic upgrades of state owned buildings, requirements for building owners to seismically strengthen their buildings, an inventory of seismically vulnerable buildings, incentives for building owners, and programs to increase public awareness.
Mass predictions of triply heavy hybrid baryons via QCD sum rules
Creators: name: Zhao, Yi-Cheng
name: Tang, Chun-Meng
name: Tang, Liang
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In this article, we study the mass spectrum of the low-lying triply heavy hybrid baryon, which consists of three valence heavy quarks in a color octet and one valence gluon, with spin-parity $J^P=(\frac{1}{2})^+$ via QCD sum rules. This is the first study on the triply heavy hybrid baryons in the framework of QCD sum rules. After performing the QCD sum rule analysis, we find that the mass of $cccg$ hybrid baryon lies in $M_{cccg}= 5.91-6.13$ GeV. As a byproduct, the mass of the triply bottom hybrid baryon state is extracted to be around $M_{bbbg}=14.62-14.82$ GeV. The contributions up to dimension eight at the leading order of $α_s$ (LO) in the operator product expansion are taken into account in the calculation. The triply charmed hybrid baryon predicted in this work can decay into one doubly charmed baryon and one charmed meson. Especially, we propose to search for $cccg$ hybrid baryon with $J^{P}= (1/2)^+$ in the P-wave decay channels $Ξ_{cc}^{++} D^0$, $Ξ_{cc}^{+} D^+$, and $Ξ_{ccs}^{+} D_s^+$, which may be accessible in future BelleII, Super-B, PANDA, and LHCb experiments.
description: 20 pages, 4 figures, 2 tables. To match the published version
title: Coronary lesion complexity assessed by SYNTAX score in 256-slice dual source MDCT angiography
Creators: name: Kantarci, Mecit
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cardiac
subject: CT-High Resolution
subject: Contrast agent-intravenous
subject: Pathology

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The awareness of the risk of feasible complications before interventional coronary procedures and treatment may lower these complications. The SYNTAX score (SS) is a scoring system to indicate the complexity of coronary artery disease (CAD), to...
Building engagement: the influence of physical structure on social interaction
Creators: name: Davis, Lindsey J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Green space, common areas, and amenities are expected to encourage social interaction, which in turn will impact engagement and commitment to community. Student housing is designed to engage students in a campus community by providing activities that encourage student satisfaction, comfort, and sociability. This study seeks to understand how the design of student housing impacts the social and community involvement of students. By studying student response to suite-style and corridor-style living environments on the University of North Carolina-Chapel Hill campus, conclusions about how different physical spaces lead to different levels of community engagement are explored. The study finds that several factors, including the architecture of a living environment, may influence the community engagement and individual satisfaction.
title: Myocardial motion analysis with the aid of tagged MR images analyzed by optical flow method: a human volunteer comparative study with echocardiography
Creators: name: Tabata, Daiki
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Image verification
subject: Computer Applications-Detection, diagnosis
subject: MR
subject: Cardiac

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: It is important to evaluate myocardial motion because heart diseases such as hypertrophic cardiomyopathy or ischemic heart disease cause dyskinesia in the regional myocardial wall [1, 2]. Echocardiography and tagged MR imaging (tagged MRI) [3] can...
title: CT-guided Pericardial Effusion Drainage-review of the experiences at a single institution
Creators: name: Somanathan, Arjuna
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Outcomes
subject: Drainage
subject: CT
subject: Thorax
subject: Interventional non-vascular
subject: Cardiac

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Background Pericardial effusion can be a potentially life threatening condition which can be managed both surgically and percutaneously. There is no significant difference in mortality rates between percutaneous and surgical techniques, and surgical...
title: Cardiac-MRI in myocarditis: Diagnosis and follow-up.
Creators: name: Esteban Cuesta, Helena
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Inflammation
subject: Contrast agent-intravenous
subject: MR
subject: Cardiac

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To describe the role of Cardiac-MRI in the diagnosis and follow-up of...
Determination of III-V/Si absolute interface energies: impact on wetting properties
Creators: name: Chandrasekharan, S. Pallikkara
name: Lucci, I.
name: Gupta, D.
name: Cornet, C.
name: Pedesseau, L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Here, we quantitatively determine the impact of III-V/Si interface atomic configuration on the wetting properties of the system. Based on a description at the atomic scale using density functional theory, we first show that it is possible to determine the absolute interface energies in heterogeneous materials systems. A large variety of absolute GaP surface energies and GaP/Si interface energies are then computed, confirming the large stability of charge compensated III-V/Si interfaces with an energy as low as 23 meV/Å$^{2}$. While stable compensated III-V/Si interfaces are expected to promote complete wetting conditions, it is found that this can be easily counterbalanced by the substrate initial passivation, which favors partial wetting conditions.
description: 16 pages, 9 figures
Early-Matter-Like Dark Energy and the Cosmic Microwave Background
Creators: name: Aurich, Ralf
name: Lustig, Sven
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Early-matter-like dark energy is defined as a dark energy component whose equation of state approaches that of cold dark matter (CDM) at early times. Such a component is an ingredient of unified dark matter (UDM) models, which unify the cold dark matter and the cosmological constant of the LambdaCDM concordance model into a single dark fluid. Power series expansions in conformal time of the perturbations of the various components for a model with early-matter-like dark energy are provided. They allow the calculation of the cosmic microwave background (CMB) anisotropy from the primordial initial values of the perturbations. For a phenomenological UDM model, which agrees with the observations of the local Universe, the CMB anisotropy is computed and compared with the CMB data. It is found that a match to the CMB observations is possible if the so-called effective velocity of sound c_eff of the early-matter-like dark energy component is very close to zero. The modifications on the CMB temperature and polarization power spectra caused by varying the effective velocity of sound are studied.
Physical model of end-diastolic and end-systolic pressure-volume relationships of a heart
Creators: name: Zhang, Yunxiao
name: Kalhöfer-Köchling, Moritz
name: Bodenschatz, Eberhard
name: Wang, Yong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Medical Physics (physics.med-ph)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Left ventricular (LV) stiffness and contractility, characterized by the end-diastolic and end-systolic pressure-volume relationships (EDPVR & ESPVR), are two important indicators of the performance of the human heart. Although much research has been conducted on EDPVR and ESPVR, no model with physically interpretable parameters combining both relationships has been presented, thereby impairing the understanding of cardiac physiology and pathology. Here, we present a model that evaluates both EDPVR and ESPVR with physical interpretations of the parameters in a unified framework. Our physics-based model fits the available experimental data and in silico results very well and outperforms existing models. With prescribed parameters, the new model is used to predict the pressure-volume relationships of the left ventricle. Our model provides a deeper understanding of cardiac mechanics and thus will have applications in cardiac research and clinical medicine.
description: 14 pages, 8 figures
Immigration and crime in North Carolina: beyond the rhetoric
Creators: name: Haddix, Lindsay
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: This paper uses U.S. Census data and Uniform Crime Reports to track changes in total, Hispanic, and non-Hispanic population growth rates and crime index trends for North Carolina counties between 1997 and 2006. Five counties in North Carolina have signed Memorandums of Agreement (MOA) with U.S. Immigration and Customs Enforcement (ICE) to implement the 287 (g) program. The 287 (g) program allows local law agencies, in this case County Sheriff's Offices, to partner with ICE in enforcing immigration laws against undocumented immigrants who are arrested for non-immigration offenses. Because it seems that the arrest rates of undocumented immigrants were not methodically tracked in any of the five counties before the implementation of the program, the decision to sign a MOA was not based upon empirical evidence to support the appropriateness of the program. Instead, the decision seems based largely on misconceptions about the relationship between immigrants and crime, as well as pressures created by continuing population growth. Among the public, policy makers, and even many academics, a common expectation is that the concentration of immigrants and the influx of foreigners drive up crime rates because of the assumed propensities of these groups to commit crimes and settle in poor, presumably disorganized communities (Sampson, 2008). However, empirical studies have shown that this is not the case. Additionally, the 287 (g) program was created to protect communities from dangerous unauthorized immigrants who pose a serious and eminent threat to safety. Yet, it is questionable whether the types of crimes being committed by undocumented immigrants warrant the resources required and negative externalities generated by 287 (g). What is the true relationship between immigrant population growth and crime rates in North Carolina and is 287 (g) the correct response?
title: Incidental Non-Cardiac Findings on Computed Tomography (CT) Angiography Do Not Adversely Affect Survival Following Transcatheter Aortic Valve Implantation (TAVI)
Creators: name: Sau, Arunashis
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Grafts
subject: Catheters
subject: Arterial access
subject: CT-Angiography
subject: Cardiovascular system
subject: Cardiac

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Introduction The last ten years have seen an exponential growth in the number of transcatheter aortic valve implantation (TAVI) procedures being performed. Well over 50,000 cases have now been carried out worldwide - mostly in Europe - and in...
Parenthood as a Moral Imperative? A conceptual replication in a UK community sample
Creators: name: Ekelund, Malin
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: The preregistration of this study can be found in the document "Study preregistration.docx" dated 2018-11-12 which is located in the "Files" section.
Get Smarter: A Bicycle Accessibility Extension to the EPA Smart Location Database in Atlanta
Creators: name: Farrell, James
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: This paper serves as an accompanying report to a mapping dataset created in ArcGIS online. This dataset builds on the existing Smart Location Database provided by the EPA. The Smart Location Database lists over 80 attributes for every census block group in the United States. Replicating the methods used by the EPA to measure automobile accessibility, this project calculates bicycle accessibility to jobs and workers in the city of Atlanta, GA. In the case of Atlanta, accessibility is driven by infrastructure more strongly than by the number of jobs or workers in a given region. As planning and policy decisions have far reaching impacts, the incorporation of bicycle accessibility into the existing Smart Location Database bolsters informed decision-making.The dataset is publicly available at:   https://arcg.is/1WeGOm
Magnetic Phases of Graphene Nanoribbons under Potential Fluctuations
Creators: name: Özdemir, H. U.
name: Altıntaş, A.
name: Güçlü, A. D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the effects of long-range potential fluctuations and electron-electron interactions on electronic and magnetic properties of graphene nanoribbons with zigzag edges using an extended mean-field Hubbard model. We show that electron-electron interactions make the edge states robust against potential fluctuations. When the disorder is strong enough, the presence of electron-hole puddles induces a magnetic phase transition from antiferromagnetically coupled edge states to ferromagnetic coupling, in agreement with recent experimental results.
description: 4 pages, 6 figures
Ethical Uncertainty in Decision-Making: Exploring a Vague Concept and its Challenges in Algorithmic Decision-Making. A Protocol for a Qualitative Systematic Literature Review.
Creators: name: Phipps, Thomas
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Business
subject: Ethics and Political Philosophy
subject: Philosophy
subject: FOS: Philosophy, ethics and religion
subject: Physical Sciences and Mathematics
subject: Arts and Humanities
subject: Computer Sciences
subject: Artificial Intelligence and Robotics
subject: AI
subject: algorithmic decision-making
subject: algorithms
subject: artificial intelligence
subject: decision
subject: decision-analytics
subject: decision-making
subject: ethics
subject: intelligent agents
subject: risk
subject: systems
subject: uncertainty

description: A systematic review protocol setting out the research questions, objectives and methodology.
Critical points of multidimensional random Fourier series: central limits
Creators: name: Nicolaescu, Liviu I.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60B20, 60D05, 60F05, 60G15

description: We investigate certain families $X^\hbar$, $00$, and satisfies a central limit theorem as $\hbar\searrow 0$.
description: 34 pages,1 figure added a new result, improved the presentation
Correcting for Selection Bias and Missing Response in Regression using Privileged Information
Creators: name: Boeken, Philip
name: de Kroon, Noud
name: de Jong, Mathijs
name: Mooij, Joris M.
name: Zoeter, Onno
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistics Theory (math.ST)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: When estimating a regression model, we might have data where some labels are missing, or our data might be biased by a selection mechanism. When the response or selection mechanism is ignorable (i.e., independent of the response variable given the features) one can use off-the-shelf regression methods; in the nonignorable case one typically has to adjust for bias. We observe that privileged information (i.e. information that is only available during training) might render a nonignorable selection mechanism ignorable, and we refer to this scenario as Privilegedly Missing at Random (PMAR). We propose a novel imputation-based regression method, named repeated regression, that is suitable for PMAR. We also consider an importance weighted regression method, and a doubly robust combination of the two. The proposed methods are easy to implement with most popular out-of-the-box regression algorithms. We empirically assess the performance of the proposed methods with extensive simulated experiments and on a synthetically augmented real-world dataset. We conclude that repeated regression can appropriately correct for bias, and can have considerable advantage over weighted regression, especially when extrapolating to regions of the feature space where response is never observed.
title: Reproducibility of flow measurements by phase-contrast sequences in cardiac magnetic resonance (CMR)
Creators: name: D'Angelo, Daniela
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cardiac
subject: Cardiovascular system
subject: MR
subject: Diagnostic procedure
subject: Congenital

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Echocardiography is considered the standard for initial evaluation of patients with valvular heart disease, however, it is limited in patients with poor acoustic window and it is more operator dependent than other techniques. In the last 20...
Evaluating HOPE VI – Charlotte, NC
Creators: name: Kim, Sukyoung
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: The objective of this paper is to find out how to evaluate a HOPE VI outcome in a specific area. In order to do this, several previous studies are reviewed to understand different evaluations and findings. Further, this paper addresses how HOPE VI programs in Charlotte should be evaluated. For this evaluation to be successful, the indicators used in previous studies are examined. Six different indicators are selected considering both residents’ quality of life and neighborhood conditions. Moreover, HOPE VI sites and control sites in Charlotte are selected based on developed year, neighborhood size, median household income, and distance. According to site selection, two HOPE VI sites and eight control sites are chosen. Finally, additional research is conducted to assess the exact HOPE VI findings: long-­term studies, comprehensive community plans, and residents’ self-­sufficiency programs.
Slice Implies Mutant Ribbon for Odd, 5-Stranded Pretzel Knots
Creators: name: Bryant, Kathryn A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: A pretzel knot $K$ is called $odd$ if all its twist parameters are odd, and $mutant$ $ribbon$ if it is mutant to a simple ribbon knot. We prove that the family of odd, 5-stranded pretzel knots satisfies a weaker version of the Slice-Ribbon Conjecture: All slice, odd, 5-stranded pretzel knots are $mutant$ $ribbon$. We do this in stages by first showing that 5-stranded pretzel knots having twist parameters with all the same sign or with exactly one parameter of a different sign have infinite order in the topological knot concordance group, and thus in the smooth knot concordance group as well. Next, we show that any odd, 5-stranded pretzel knot with zero pairs or with exactly one pair of canceling twist parameters is not slice.
description: 31 pages, 9 figures. Version 2 includes results for pretzel knots with single-twists (strands with twisting parameter 1 or -1), which were not addressed in version 1. Version 2 also includes one new figure and fixes a few typos
Statewide Risk Assessment Methodology For The North Carolina Natural Hazard Mitigation Plan
Creators: name: Eschelbach, Katherine
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2004

description: This document describes the methodology used to complete the Risk Assessment section of North Carolina's statewide natural hazard mitigation plan. Several models exist for risk assessments at the community and state level. This methodology uses the statewide assessment of Rhode Island (Odeh, 2002) as a model, which quantifies vulnerability for multiple hazards and exposures by census tracts of their state. However, larger states, such as North Carolina, have a greater distribution and diversity of natural hazards than those examined in the Rhode Island assessment. Thus, this document also describes the modifications that were made to the Rhode Island model in order to complete the risk assessment at a larger statewide scale. Discussion with meteorological and geological experts from across North Carolina identified a total of forty-two natural hazards to include in the risk assessment. Each hazard was assigned a score by these experts based on its scope, frequency, intensity, and destructive potential according to climate region. Exposures were also identified and include the six categories of population, structures, economic activity, critical facilities, transportation and environmental exposure. Each exposure category received a score by county from data made available through the Federal Emergency Management Agency (FEMA) HAZUSMulti Hazard database, the North Carolina Center for Geographic Information and Analysis (NC CGIA) Hazard Pro database, and the North Carolina Department of Commerce Economic Development Information System (EDIS). The score combinations were then completed to create multiple spatial representations of natural hazard and exposure vulnerability hotspots across the state at the county level. The final scores serve as a qualitative assessment of the total vulnerability to guide policy formulation of the hazard mitigation plan. The information contained in the assessment will be made available to municipal and county mitigation planning efforts in hazard mitigation and provide information to the public and other state, regional and county organizations about natural hazards in North Carolina. The methodology used in this assessment may also be useful to serve as a model for other larger states completing risk assessments across the country.
title: The interaction between changes of the parenchymal lung tissue and pulmonary vein stenosis in patients after radiofrequency ablation by Multidetector Computer Tomography.
Creators: name: Shlyappo, Maria
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Computer Applications-Virtual imaging
subject: CT-Angiography
subject: CT
subject: Computer applications
subject: Cardiac
subject: Cardiac Assist Devices

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Purpose: to identify the possible correlation changes of the parenchymal lung tissue with pulmonary vein (PV) stenosis in patients after radiofrequency ablation with help of multidetector computer tomography...
title: [Spätmittelalterliche Sammelhandschrift]; 1486 - 1487
title: (1r) [Ps.-Vergilius: Moretum]. (4v) [Ps.-Vergilius:] Copa. (5v) Augustinus Datus Senensis: Elegantiolae. (69r) Guilelmus Saphonensis: Epistolandi ars brevis. (88v) Epistulae. (91v) [Briefentwurf an den Vater Johann Zellter]. (92r) [Rhetorische und grammatikalische Formeln und Merkverse]. (96r) Facetus cum nihil utilius].
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2022

description: Vorbesitz: [Adam Zellter aus Friedberg (91v)]; [Thomas Feldbacher aus Friedberg (91v)]; Signaturen der Universitätsbibliothek Ingolstadt (1r u. VD); Besitzstempel der Universitätsbibliothek Landshut (1r); Besitzstempel der Universitätsbibliothek München (1r)
Imaging compact boson stars with hot-spots and thin accretion disks
Creators: name: Rosa, João Luís
name: Macedo, Caio F. B.
name: Rubiera-Garcia, Diego
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this work we consider the observational properties of compact boson stars with self-interactions orbited by isotropically emitting (hot-spot) sources and optically thin accretion disks. We consider two families of boson stars supported by quartic and sixth-order self-interaction potentials, and choose three samples of each of them in growing compactness; only those with large enough compactness are capable to hold light-rings, namely, null bound orbits. For the hot-spots, using inclination angles $θ=\{20^\circ, 50^\circ, 80^\circ \}$ we find a secondary track plunge-through image of photons crossing the interior of the boson star, which can be further decomposed into additional images if the star is compact enough. For accretion disks we find that the latter class of stars actually shows a sequence of additional secondary images in agreement with the hot-spot analysis, a feature absent in typical black hole space-times. Furthermore, we also find a shadow-like central brightness depression for some of these stars in both axial observations and at the inclination angles above. We discuss our findings in relation to the capability of boson stars to effectively act as black hole mimickers in their optical appearances as well as potential observational discriminators.
description: 17 pages, 16 figures