cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Universal relations for holographic interfaces
Creators: name: Karch, Andreas
name: Luo, Zhu-Xi
name: Sun, Hao-Yu
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the entanglement entropy in 1+1 dimensional conformal field theories in the presence of interfaces from a holographic perspective. Compared with the well-known case of boundary conformal field theories, interfaces allow for several interesting new observables. Depending on how the interface is located within the entangling region, the entanglement entropies differ and exhibit surprising new patterns and universal relations. While our analysis is performed within the framework of holography, we expect our results to hold more generally.
description: v4, corrected formulas about entanglement entropy in the RS model
What is the Brillouin Zone of an Anisotropic Photonic Crystal?
Creators: name: Sivarajah, P.
name: Maznev, A. A.
name: Ofori-Okai, B. K.
name: Nelson, K. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The concept of the Brillouin zone (BZ) in relation to a photonic crystal fabricated in an optically anisotropic material is explored both experimentally and theoretically. In experiment, we used femtosecond laser pulses to excite THz polaritons and image their propagation in lithium niobate and lithium tantalate photonic crystal (PhC) slabs. We directly measured the dispersion relation inside PhCs and observed that the lowest bandgap expected to form at the BZ boundary forms inside the BZ in the anisotropic lithium niobate PhC. Our analysis shows that in an anisotropic material the BZ - defined as the Wigner-Seitz cell in the reciprocal lattice - is no longer bounded by Bragg planes and thus does not conform to the original definition of the BZ by Brillouin. We construct an alternative Brillouin zone defined by Bragg planes and show its utility in identifying features of the dispersion bands. We show that for an anisotropic 2D PhC without dispersion, the Bragg plane BZ can be constructed by applying the Wigner-Seitz method to a stretched or compressed reciprocal lattice. We also show that in the presence of the dispersion in the underlying material or in a slab waveguide, the Bragg planes are generally represented by curved surfaces rather than planes. The concept of constructing a BZ with Bragg planes should prove useful in understanding the formation of dispersion bands in anisotropic PhCs and in selectively tailoring their optical properties.
description: 9 pages, 6 figures
Abandoned Farmsteads in North Carolina: Lost History and Wasted Housing
Creators: name: Kaplan, Peter R.
name: Southern, Kathleen Pepi
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1983

description: You're driving down one of the state's secondary roads — it might be SR 1005 in southern Alamance County — and you see a two-story, white frame farmhouse in its grove of tall trees. From a distance, the prominence of the house and its pleasant setting suggest that it might be the seat of a prosperous family farm. But as you come closer, you see that the windows are broken, the chimney tops are crumbling, and the house is slowly falling apart. No one lives here anymore. This fine old family homeplace, once the most substantial building in its community, has been left to rot away. The scene reflects a problem that North Carolinians are just beginning to recognize and understand — abandonment and neglect are destroying the well-built farmhouses vital to North Carolina's rural heritage and landscape. In rural communities across the state, people build new houses, many of poor quality and construction, and purchase mobile homes, while older, usable dwellings — often of excellent quality materials and craftsmanship not affordable today — are left to fall into ruin. Our history is lost, and valuable housing stock is wasted.
Book Reviews
Creators: name: Stern, Julianne
name: Hunt, Heather
name: Hedglin, Daniel
name: Widis, David
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Book review of the following: Design after Decline: How America Rebuilds Shrinking Cities by Brent Ryan; Good Jobs, Bad Jobs by Arne Kalleberg; Why Good People Can’t Get Jobs by Peter Cappelli; Networks Cities by James Brearley and Fang Qun
Quantum Vavilov-Cherenkov radiation from shearing two transparent dielectric plates
Creators: name: Volokitin, A. I.
name: Persson, B. N. J
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using a fully relativistic theory we study the quantum Vavilov-Cherenkov radiation and quantum friction occurring during relative sliding of the two transparent dielectric plates with the refractive index $n$. These phenomena occur above the threshold velocity $v_c=2nc/(n^2+1)$. Close to the threshold velocity they are dominated by the contribution from $s$--polarized electromagnetic waves, which agrees with the approximate (relativistic) theory by Pendry (J. Mod. Opt. \textbf{45}, 2389 (1998)). However, in the ultra relativistic case ($v\rightarrow c$), the contributions from both polarisations are strongly enhanced in the comparison with the approximate theory, and a new contribution occurs from the mixing of the electromagnetic waves with the different polarization. The numerical results are supplemented by an analytical treatment close to the threshold velocity and the light velocity.
description: 7 pages, 3 figures
title: Preoperative staging ovarian cancer: is contrast-enhanced PET/CT more accurate than non-enhanced PET/CT?
Creators: name: Kitajima, Kazuhiro
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Nuclear medicine
subject: Pelvis
subject: PET-CT
subject: Staging
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The stage of ovarian cancer is determined after exploratory laparotomy and through evaluation of all specific lesions at risk in accordance with the recommendations of the International Federation of Gynecology and Obsterics (FIGO). Patients with...
Standard Generators of Finite Fields and their Cyclic Subgroups
Creators: name: Lübeck, Frank
Publisher: name: arXiv
Year: 2021
Subjects: subject: Commutative Algebra (math.AC)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 12Y05 12F05 (Primary) 20C20 20C33 (Secondary)

description: We define standardized constructions of finite fields, and standardized generators of (multiplicative) cyclic subgroups in these fields. The motivation is to provide a substitute for Conway polynomials which can be used by various software packages and in collections of mathematical data which involve finite fields.
description: The second version is a simplification, taking discussions on first version into account. (The "standardized" polynomials are different compared to the first version.)
Twisting, ladder graphs and A-polynomials
Creators: name: Thompson, Em K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57K10 (primary), 57K31, 57K32, 13F60 (secondary)

description: We extend recent work by Howie, Mathews and Purcell to simplify the calculation of A-polynomials for any family of hyperbolic knots related by twisting. The main result follows from the observation that equations defining the deformation variety that correspond to the twisting are reminiscent of exchange relations in a cluster algebra. We prove two additional results with analogues in the context of cluster algebras: the Laurent phenomenon, and intersection numbers appearing as exponents in the denominator. We demonstrate our results on the twist knots, and on a family of twisted torus knots for which A-polynomials have not previously been calculated.
description: 25 pages, 16 figures
title: The visualization of periprostatic nerve fibers using Diffusion Tensor Magnetic Resonance Imaging with tractography
Creators: name: Kitajima, Kazuhiro
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: MR
subject: Pelvis
subject: Technical aspects
subject: Image verification

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The decision whether to preserve or resect neurovascular bundles (NVBs) or the type of nerve-sparing procedure (intrafascial and interfascial) to be performed during radical prostatectomy (RP) are some of the most common and difficult points that...
Virtual Assistants in Families - a Cross-Sectional Approach II
Creators: name: Wald, Rebecca
name: Araujo, Theo
name: van Oosten, Annemarie
name: Piotrowski, Jessica
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Communication
subject: Social and Behavioral Sciences
subject: Communication Technology and New Media

description: This preregistration outlines the research design plan, data collection process, underlying theory, hypotheses, and analyses of our study which investigates the adoption and domestication processes of virtual assistants (used on smart speakers) within families with young children. This forms the preregistration of the second part of this research project.
Green Building: What Is It and Why Should Planners Care?
Creators: name: Wedding, Christopher
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2005

description: Green building is on the rise and many planners are paying attention to the potential environmental, financial and economic benefits, including reduced energy and water costs, enhanced worker productivity, better health conditions, and reduced liability. This article provides an introduction to green building by defining green building and explaining the U.S. Green Building Council’s LEED guidelines, addressing the specific benefits and costs of green building, discussing the various criticisms and weaknesses of LEED, and proposing how LEED and green building may be of interest to those involved in transportation planning, community development, economic development, and environmental planning.
title: Ultrasound as first line imaging tool for patellar fractures
Creators: name: Aljamil, Salwan
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Education and training
subject: Education
subject: Ultrasound
subject: MR
subject: Musculoskeletal joint
subject: Musculoskeletal bone

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Purpose. To evaluate if US improves the accuracy of first line diagnosis of patellar fractures Fracture of patella classifieds , Vertical Displaced , Transverse Stellate Multi fragmented , Polar Proximal Distal , Osteochondral Longitudinal or...
Growth Management through DRI Review: Learning from the Florida Experience
Creators: name: Hunsberger, Mark D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1979

description: The "Quiet Revolution" is a name popularly applied to the bundle of innovative land use controls developed since the early 1960s. Two ideas with major implications for the state role in land use policy are embodied in the innovations: concern for the health of environmental systems and assertion of state and regional interests in local land use decisions. Several techniques have been developed to implement these two concepts, including state-wide land use planning, state permitting in sensitive environmental areas, and state review of local plans. Much of the early impetus for strengthening the state land planning role came from the American Law Institute's Model Land Development Code, which was developed during the 1960s and early 1970s. One of the Code's most prominent provisions, review of Developments of Regional Impact (DRIs), has been ignored by all but a few states. In fact, only Florida has faithfully transcribed the DRI process from the Code to legislation.
title: CT perfusion in the diagnosis of intraaxial brain tumors
Creators: name: Tsibulskaja, Julia
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: CNS
subject: Computer applications
subject: Oncology
subject: CT
subject: CT-Quantitative
subject: Contrast agent-intravenous
subject: Computer Applications-General
subject: Metastases
subject: Blood
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To prospectively measure the perfusion characteristics of meningiomas and brain...
“Årsaksattribusjon i erstatningssaker om psykisk helseskade” en undersøkelse av psykologistudenters vurderinger.
Creators: name: Lockertsen, Tim
name: Mittner, Matthias
name: Mittner, Matthias
name: Taknes, Robert
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Law and Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Law
subject: FOS: Law

description: Hovedoppgave Høst 2020
Fundamental Constructs in Programming Languages
Creators: name: Mosses, Peter D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: D.3.1; F.3.2; D.3.3

description: When a new programming language appears, the syntax and intended behaviour of its programs need to be specified. The behaviour of each language construct can be concisely specified by translating it to fundamental constructs (funcons), compositionally. In contrast to the informal explanations commonly found in reference manuals, such formal specifications of translations to funcons can be precise and complete. They are also easy to write and read, and to update when the language evolves. The PLanCompS project has developed a large collection of funcons. Each funcon is defined independently, using a modular variant of structural operational semantics. The definitions are available online, along with tools for generating funcon interpreters from them. This paper introduces and motivates funcons. It illustrates translation of language constructs to funcons, and funcon definition. It also relates funcons to the notation used in some previous language specification frameworks, including monadic semantics and action semantics.
description: 26 pages, incl. 3 figures and 7 appendices, accepted for publication in Proceedings of ISoLA 2021; updates the submitted version with clarifications and minor enhancements
title: MR imaging of endolymphatic hydrops in 10 minutes: A new strategy for dramatic scan time reduction
Creators: name: Naganawa, Shinji
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Ear / Nose / Throat
subject: MR
subject: Contrast agent-intravenous
subject: Oedema

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Ménière’s disease is an inner ear disorder characterized by spontaneous attacks of vertigo, fluctuating low-frequency hearing loss, aural fullness, and tinnitus. Endolymphatic hydrops has long been held to be the pathologic basis for...
Riding the Southern Circuit
Creators: name: Jones, Susan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1983

description: Ben Coe's description of circuit riders in upstate New York has its counterparts in the Southeast. Daniel Wanamaker, in a 1977 paper about circuit riders in the U.S. which was presented at the National Association of Regional Councils Conference, noted that the idea of using roving local government experts has been attempted in Alabama, Georgia, Kentucky, North Carolina, South Carolina, Tennessee, West Virginia, and Virginia. An informal survey of North Carolina public agencies indicates that technical assistance to local governments is not often provided by circuit riders. However, examples of persons who as Coe describes, "build the capacity" of local government officials to solve their communities' problems, are found within the state Office of Coastal Management and the Community Assistance Division of the Department of Natural Resources and Community Development (NRCD), and among North Carolina's Councils of Government. Undoubtedly there are other examples.
Characterizing and Tuning Exceptional Points Using Newton Polygons
Creators: name: Jaiswal, Rimika
name: Banerjee, Ayan
name: Narayan, Awadhesh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Mathematical Physics (math-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The study of non-Hermitian degeneracies -- called exceptional points -- has become an exciting frontier at the crossroads of optics, photonics, acoustics, and quantum physics. Here, we introduce the Newton polygon method as a general algebraic framework for characterizing and tuning exceptional points. These polygons were first described by Isaac Newton in 1676 and are conventionally used in algebraic geometry, with deep roots in various topics in modern mathematics. We have found their surprising connection to non-Hermitian physics. We propose and illustrate how the Newton polygon method can enable the prediction of higher-order exceptional points, using a recently experimentally realized optical system. Using the paradigmatic Hatano-Nelson model, we demonstrate how our Newton Polygon method can be used to predict the presence of the non-Hermitian skin effect. As further application of our framework, we show the presence of tunable exceptional points of various orders in $PT$-symmetric one-dimensional models. We further extend our method to study exceptional points in higher number of variables and demonstrate that it can reveal rich anisotropic behaviour around such degeneracies. Our work provides an analytic recipe to understand and tune exceptional physics.
description: Published version
Long-term Mental Health Morbidity Among Survivors of Extracorporeal Membrane Oxygenation – A Population-Based Cohort Study
Creators: name: Fernando, Shannon
name: Scott, Mary
name: Talarico, Robert
name: Fan, Eddy
name: McIsaac, Daniel
name: Sood, Manish
name: Myran, Daniel
name: Herridge, Margaret
name: Needham, Dale
name: Hodgson, Carol
name: Rochwerg, Bram
name: Munshi, Laveena
name: Wilcox, M
name: Bienvenu, O
name: MacLaren, Graeme
name: Fowler, Robert
name: Scales, Damon
name: Ferguson, Niall
name: Combes, Alain
name: Slutsky, Arthur
name: Brodie, Daniel
name: Tanuseputro, Peter
name: Kyeremanteng, Kwado
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences

description: Population-based cohort study designed to evaluate the incidence of post-discharge mental health diagnoses among survivors of extracorporeal membrane oxygenation (ECMO).
ISTEA: Making a Difference in the Southeast
Creators: name: DiStefano, Joe
name: Raimi, Matthew
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1997

description: These short pieces are excerpted from Five Years of Progress: 110 Communities Where ISTEA is Making a Difference, by Joe DiStefano and Matthew Raimi. While the book includes cases from across the United States, we have chosen ones from the Southeast. Even this limited selection illustrates the wide range of innovative uses planners have found for funds allocated through the Intermodal Surface Transportation Act (ISTEA). The entire text is available at http://www.transact.org or the book can be purchased by calling the Surface Transportation Policy Project at (202) 466-2636.
Replication of A Bad Taste in the Mouth: Gustatory Disgust Influences Moral Judgment (Eskine, K. J., Kacinik, N. A., & Prinz, J. J. (2011).) at Pacific Lutheran University(FORK)
Creators: name: Redman, David
name: Evans, Justin
name: McLaughlin, Heidi
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: crep

description: This is Part of the Collaborative Research and Education Program (CREP) that is a replication study on gustatory disgust and its influence on moral judgement. The study was conducted within the researchers Advanced Statistics and Research Design class at Pacific Lutheran University. Link to procedure video https://youtu.be/SSCP00GXF5U
The Galactic Center Excess from Z3 Scalar Semi-Annihilations
Creators: name: Cai, Yi
name: Spray, Andrew Paul
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the possibility of the Z3 scalar singlet model explaining the Fermi galactic centre excess. We find a good fit to the measured spectral excess in the region where the dark matter mass is comparable to the Higgs and the Higgs portal coupling $λ_{HS}\sim 0.04$. This preferred region is consistent with constraints from vacuum stability and current dark matter experiments, and will be discovered or falsified soon by future dark matter direct detection experiment.
description: 11 pages, 3 figures; additional references
Nuclear recoil effect in the Lamb shift of light hydrogen-like atoms
Creators: name: Yerokhin, V. A.
name: Shabaev, V. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report high-precision calculations of the nuclear recoil effect to the Lamb shift of hydrogen-like atoms to the first order in the electron-nucleus mass ratio and to all orders in the nuclear binding strength parameter $Zα$. The results are in excellent agreement with the known terms of the $Zα$ expansion and allow an accurate identification of the nonperturbative higher-order remainder. For hydrogen, the higher-order remainder was found to be much larger than anticipated. This result resolves the long-standing disagreement between the numerical all-order and the analytical $Zα$-expansion approaches to the recoil effect and completely removes the second-largest theoretical uncertainty in the hydrogen Lamb shift of the $1S$ and $2S$ states.
description: with proof corrections
Effect of a minimal length on the thermal properties of a Dirac oscillator
Creators: name: Boumali, Abdelmalek
name: Chetouani, Lyazid
name: Hassanabadi, Hassan
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The effect of the minimal length on the thermal properties of a Dirac oscillator is considered. The canonical partition function is well determined by using the method based on Zeta Epstein function. Through this function, all thermodynamics properties, such as the free energy, the total energy, the entropy, and the specific heat, have been determined. Moreover, this study allows us to calculate the values of minimal length \triangle x=\hbar\sqrtβ for some fermionic particles.
description: 04 figures, any comments are welcome. arXiv admin note: substantial text overlap with arXiv:1501.07041
title: A multiple classifier system for classification of breast lesions using dynamic and morphological features in DCE-MRI
Creators: name: Fusco, Roberta
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Breast
subject: MR
subject: Neural networks
subject: CAD
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Breast cancer is the most common cancer among women in the Western world. To date it is the second leading cause of cancer death in women (after lung cancer) and is estimated to cause 15% of cancer deaths [2]. Therefore, screening for early...
Black holes in an expanding universe and supersymmetry
Creators: name: Klemm, Dietmar
name: Nozawa, Masato
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper analyzes the supersymmetric solutions to five and six-dimensional minimal (un)gauged supergravities for which the bilinear Killing vector constructed from the Killing spinor is null. We focus on the spacetimes which admit an additional ${\rm SO}(1,1)$ boost symmetry. Upon the toroidal dimensional reduction along the Killing vector corresponding to the boost, we show that the solution in the ungauged case describes a charged, nonextremal black hole in a Friedmann-Lemaître-Robertson-Walker (FLRW) universe with an expansion driven by a massless scalar field. For the gauged case, the solution corresponds to a charged, nonextremal black hole embedded conformally into a Kantowski-Sachs universe. It turns out that these dimensional reductions break supersymmetry since the bilinear Killing vector and the Killing vector corresponding to the boost fail to commute. This represents a new mechanism of supersymmetry breaking that has not been considered in the literature before.
description: 9 pages, 1 figure; v2: minor modifications, published version in PLB
title: Comparison between EOS imaging and CTscan for the femoral and tibial torsion measurements in children
Creators: name: BAUNIN, Christiane
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Dosimetric comparison
subject: Radiation safety
subject: Conventional radiography
subject: CT
subject: Paediatric
subject: Musculoskeletal bone

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Accurate evaluation of femoral and tibial torsion is essential for children or adult with legs deformity. An incorrect legs morphogenesis can lead to pathological situation. As soon as symptomatology appears orthopaedical care is...
title: Comparison of diffusion tensor, dynamic susceptibility contrast MRI and 99mTc-Tetrofosmin brain SPECT for the assessment of glioma proliferation
Creators: name: Zikou, Anastasia
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: CNS
subject: Oncology
subject: MR-Diffusion/Perfusion
subject: SPECT
subject: Diagnostic procedure
subject: Neoplasia

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Assessment of the grade and type of glioma is of paramount importance for prognosis. Tumour proliferative potentials may provide additional information on the behaviour of the tumour, its response to treatment and prognosis. The purpose of this...
title: Evaluation of labral pathology and hip articular cartilage in patients with femoroacetabular impingement (FAI): comparison of 64-slice multidetector CT arthrography and 1.5 T MR arthrography
Creators: name: Calisir, Cuneyt
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Dysplasias
subject: Arthrography
subject: MR
subject: CT
subject: Musculoskeletal joint

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The assessment of patients with chronic and mechanical hip pain is a clinical dilemma. In these cases, hip pain can be caused by various pathologies. Femoraasetabular impingement (FAI) is one of the causes of chronic hip pain, and it is an important...
On the Automatic Activation of Attitudes: A Registered Replication (Study 1)
Creators: name: Navon, Mayan
name: Shechter, Anat
name: Bar-Anan, Yoav
name: Lab, Bar-Anan
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences

description: This is the preregistration for the first experiment in this replication project, which is the direct replication.
Quasinormal modes of Gauss-Bonnet black holes at large D
Creators: name: Chen, Bin
name: Fan, Zhong-Ying
name: Li, Pengcheng
name: Ye, Weicheng
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Einstein's General Relativity theory simplifies dramatically in the limit that the spacetime dimension D is very large. This could still be true in the gravity theory with higher derivative terms. In this paper, as the first step to study the gravity with a Gauss-Bonnet(GB) term, we compute the quasi-normal modes of the spherically symmetric GB black hole in the large D limit. When the GB parameter is small, we find that the non-decoupling modes are the same as the Schwarzschild case and the decoupled modes are slightly modified by the GB term. However, when the GB parameter is large, we find some novel features. We notice that there are another set of non-decoupling modes due to the appearance of a new plateau in the effective radial potential. Moreover, the effective radial potential for the decoupled vector-type and scalar-type modes becomes more complicated. Nevertheless we manage to compute the frequencies of the these decoupled modes analytically. When the GB parameter is neither very large nor very small, though analytic computation is not possible, the problem is much simplified in the large D expansion and could be numerically treated. We study numerically the vector-type quasinormal modes in this case.
description: 26 pages; typos corrected, reference added
North Carolina's Housing Finance Agency: Can it be More Effective?
Creators: name: Hiteshew, Kent
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1978

description: President Carter's national urban policy address included, for the first time, provisions for the participation of state governments in an attack on our nation's urban ills. Historically, states have not dealt with urban issues and have left these problems to be confronted by local and federal governments. The national urban policy reflects the realization that "state governments have both money and power which can be marshalled in the battle to bring suitability and vitality back to our cities." While the federal budget deficit has continued to escalate to a 1976 high of $66.5 billion (U.S. Department of Commerce 1977) state governments maintained an historical trend of budget surpluses (Albright 1976). In addition, state constitutions and statutes are the origin of all municipal powers relating to urban development, taxation, and annexation. Consistent with these determinations, the President has proposed that federal incentives be provided for states to implement comprehensive urban policies and strategies. North Carolina and forty-one states already have one mechanism in place for implementing strategies consistent with the proposed national urban policy: a state housing finance agency (HFA). However, the degree of past effectiveness and the potential for performing a critical role in implementing national policy varies widely among HFAs. This article examines the potential for North Carolina's HFA to take on an expanding role in addressing this state's housing problems. First, a brief history of North Carolina's agency is chartered. Following that, the agency's performance is evaluated. The article concludes with proposals to increase the agency's capability to meet the state's housing needs.
R4Dyn: Exploring Radar for Self-Supervised Monocular Depth Estimation of Dynamic Scenes
Creators: name: Gasperini, Stefano
name: Koch, Patrick
name: Dallabetta, Vinzenz
name: Navab, Nassir
name: Busam, Benjamin
name: Tombari, Federico
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: While self-supervised monocular depth estimation in driving scenarios has achieved comparable performance to supervised approaches, violations of the static world assumption can still lead to erroneous depth predictions of traffic participants, posing a potential safety issue. In this paper, we present R4Dyn, a novel set of techniques to use cost-efficient radar data on top of a self-supervised depth estimation framework. In particular, we show how radar can be used during training as weak supervision signal, as well as an extra input to enhance the estimation robustness at inference time. Since automotive radars are readily available, this allows to collect training data from a variety of existing vehicles. Moreover, by filtering and expanding the signal to make it compatible with learning-based approaches, we address radar inherent issues, such as noise and sparsity. With R4Dyn we are able to overcome a major limitation of self-supervised depth estimation, i.e. the prediction of traffic participants. We substantially improve the estimation on dynamic objects, such as cars by 37% on the challenging nuScenes dataset, hence demonstrating that radar is a valuable additional sensor for monocular depth estimation in autonomous vehicles.
description: Accepted at the International Conference on 3D Vision (3DV) 2021
title: Cerebral radionecrosis: imaging features, differential diagnosis and developmental characteristics. Experience in our center, pictorial essay and literature rewiew.
Creators: name: Pollice, Saverio
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: CNS
subject: Neuroradiology brain
subject: Radiation physics
subject: MR
subject: Complications
subject: Neoplasia

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Radiotherapy (RT) is a non-surgical treatment that uses radiation to eradicate tumors and to restrict its growth, causing damage to cell's DNA. Itstarget is the surgical bed plus a margin around the mass. Different types of radiation can be used: X...
Equation for one-loop divergences in two dimensions and its application to higher spin fields
Creators: name: Popova, H. P.
name: Stepanyantz, K. V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A simple formula for one-loop logarithmic divergences on the background of a two-dimensional curved space-time is derived for theories for which the second variation of the action is a nonminimal second order operator with small nonminimal terms. In particular, this formula allows to calculate terms which are integrals of total derivatives. As an application of the result, one-loop divergences for the higher spin fields on the constant curvature background are obtained in a nonminimal gauge, which depends on two parameters. By an explicit calculation we demonstrate that with the considered accuracy the result is gauge independent. Moreover, the result appeared to be independent of the spin $s$ for $s\ge 3$.
description: 13 pages, 1 figure, some references added
title: Analysis of Remnant Liver Regeneration after Donor Partial Liver Transplantation Using 3D Volumetry
Creators: name: Kyeong Seok, Park
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Image verification
subject: Computer Applications-3D
subject: CT
subject: Liver

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: -To evaluate the donor stability after liver transplantation, liver regeneratio nmeasurements according to variables such as the mean liver regeneration , age, gender, and donation rate were evaluated using3D CT volumetry. - Safety prediction...
title: A Comparison of Outcomes of the Brain 1H Spectroscopy of Single TE and Multi TE in the Normal Cerebellum
Creators: name: DAE-KEUN, KIM
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Neuroradiology brain
subject: MR-Spectroscopy
subject: Normal variants
subject: Outcomes

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: 1 H-MRS Multi TE has the advantage of looking T2 Relaxometry of metabolite and short TE echo time substance at the same time. The purpose of this study is to examine the difference of the ratio of metabolites between 1 H-MRS Single TE and 1 H-MRS...
Reflections on Donor Coordination: An Attempt to Establish a Microcomputer-based Development Project Directory in Sudan
Creators: name: Calhoun, Craig
name: Whittington, Dale
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1988

description: The World Bank and USAID have encouraged the coordination of Third World donor organizations as a worthwhile and feasible endeavor. However, the authors' experience in Sudan illustrates that, despite the availability of microcomputers and the tacit agreement of the donor organizations themselves, donor coordination is not easily obtained.
title: MDCT evaluation of atherosclerotic coronary artery disease: what radiologists should know?
Creators: name: Yoo, Seung Min
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cardiac
subject: CT-Angiography
subject: Diagnostic procedure
subject: Arteriosclerosis

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Proper measurement of degree of coronary stenosis is quite important as misinterpretation directly leads to a significant consequence [i.e., unnecessary down streaming testing such as coronary catheterization or myocardial perfusion imaging versus...
Relative binary and ternary 4D velocities in the Special Relativity in terms of manifestly covariant Lorentz transformation
Creators: name: Koczan, Grzegorz M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences
subject: J.2
subject: 83A05 (Primary), 51J15, 70B05 (Secondary)

description: Zbigniew Oziewicz was a pioneer of the 4D space-time approach to covariant relative velocities. In the 1980s (according to private correspondence) he discovered two types of 4D relative velocities: binary and ternary, along with the rules for adding them. They were first published in conference materials in 2004, and the second time in a peer-reviewed journal in 2007. These physically logical and mathematically precise concepts are so subtle that Oziewicz's numerous preprints have yet to receive the recognition they deserve. This work was planned to be a more review, but a thorough review of the little-known results was made in an original synthetic manner with numerous generalizations. The Part I presents the Oziewicz-Świerk-Bolós (and Matolsci or Bini-Carini-Jantzen) binary relative velocity and the Oziewicz-Ungar-Dragan (also Celakoska-Chakmakov-Petrushevski on the basis of Urbantke, as well as Wyk) ternary relative velocity. The Einstein-Oziewicz and Einstein-Minkowski velocities, which are a four-dimensional generalization of Einstein velocities addition, also have a ternary character. This also applies to Oziewicz-Minkowski relative velocity, which is a time-like equivalent (generalization) of the canonical ternary velocity. It turns out that the Lorentz transformation of velocity itself is already ternary anchored. This fact is explicitly revealed by the manifestly covariant Lorentz transformation of velocity, which is the main tool of the work.
description: 25 pages, 2 figures, 1 table, 50 references, 77 equations, 7 theorems
The Lyman Continuum Escape Fraction of Low-Mass Star-Forming Galaxies at z~1
Creators: name: Rutkowski, Michael J.
name: Scarlata, Claudia
name: Haardt, Francesco
name: Siana, Brian
name: Henry, Alaina
name: Rafelski, Marc
name: Hayes, Matthew
name: Salvato, Mara
name: Pahl, Anthony J.
name: Mehta, Vihang
name: Beck, Melanie
name: Malkan, Matthew
name: Teplitz, Harry I.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: To date no direct detection of Lyman continuum emission has been measured for intermediate--redshift z~1 star-forming galaxies . We combine HST grism spectroscopy with GALEX UV and ground--based optical imaging to extend the search for escaping Lyman continuum to a large (~600) sample of z~1 low-mass, moderately star-forming galaxies selected initially on H$α$ emission. The characteristic escape fraction of LyC from SFGs that populate this parameter space remains weakly constrained by previous surveys, but these faint SFGs are assumed to play a significant role in the reionization of neutral hydrogen in the intergalactic medium (IGM) at high redshift (z>6). We do not make an unambiguous detection of escaping LyC radiation from this $z\sim1$ sample, individual non--detections to constrain the absolute Lyman continuum escape fraction, $f_{esc}$<2.1% (3$σ$). We measure upper limits of $f_{esc}$<9.6% from a sample of SFGs selected on high H$α$ equivalent width (EW>200Å), which are thought to be close analogs of high redshift sources of reionization. For reference, we also present an emissivity--weighted escape fraction which is useful as a measurement of the general contribution of the SFGs to the z~1 ionizing UV background. In the discussion, we consider the implications of these intermediate redshift constraints for the reionization of hydrogen in the intergalactic medium at high (z > 6) redshift. If we assume our $z\sim1$ SFGs, for which we measure this emissivity-weighted $f_{esc}$, are analogs to the high redshift sources of reionization, we find is difficult reconcile reionization by faint (M$_{UV}
description: updated submission to the ApJ
A first principles investigation of cubic BaRuO$_3$: A Hund's metal
Creators: name: Dasari, Nagamalleswararao
name: Yamijala, S. R. K. C. Sharma
name: Jain, Manish
name: Dasgupta, T. Saha
name: Moreno, Juana
name: Jarrell, Mark
name: Vidhyadhiraja, N. S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A first-principles investigation of cubic-BaRuO$_3$, by combining density functional theory with dynamical mean-field theory and a hybridization expansion continuous time quantum Monte-Carlo solver, has been carried out. Non-magnetic calculations with appropriately chosen on-site Coulomb repulsion, $U$ and Hund's exchange, $J$, for single-particle dynamics and static susceptibility show that cubic-BaRuO$_3$ is in a spin-frozen state at temperatures above the ferromagnetic transition point. A strong red shift with increasing $J$ of the peak in the real frequency dynamical susceptibility indicates a dramatic suppression of the Fermi liquid coherence scale as compared to the bare parameters in cubic-BaRuO$_3$. The self-energy also shows clear deviation from Fermi liquid behaviour that manifests in the single-particle spectrum. Such a clean separation of energy scales in this system provides scope for an incoherent spin-frozen (SF) phase, that extends over a wide temperature range, to manifest in non-Fermi liquid behaviour and to be the precursor for the magnetically ordered ground state.
description: 10 pages, 12 figures, 1 table
title: Assesment of Undefined Myocardial Infarction Using Cardiac MRI in Patients with End-stage Renal Disease.
Creators: name: Yüce, İhsan
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Ischaemia / Infarction
subject: Screening
subject: MR
subject: Cardiac

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Undefined myocardial infarction (UMI) is characterized with presence of myocardial scarring in subjects who had no history of myocardial infarction (MI). Data derived from population-based studies showed that mortality rate of patients with UMI is...
title: Diffusion weighted imaging in sporadic Creutzfeldt Jakob disease
Creators: name: Vollmann, Robert
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Dementia
subject: Diagnostic procedure
subject: MR
subject: Neuroradiology brain

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The aim of this case series ist to give an overview about typical changes of sCJD in MRI and especially in DWI seuqences. Furthermore we figured out the reliability of these changes especially compared with other...
Quantum kernels with squeezed-state encoding for machine learning
Creators: name: Li, Long Hin
name: Zhang, Dan-Bo
name: Wang, Z. D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Kernel methods are powerful for machine learning, as they can represent data in feature spaces that similarities between samples may be faithfully captured. Recently, it is realized that machine learning enhanced by quantum computing is closely related to kernel methods, where the exponentially large Hilbert space turns to be a feature space more expressive than classical ones. In this paper, we generalize quantum kernel methods by encoding data into continuous-variable quantum states, which can benefit from the infinite-dimensional Hilbert space of continuous variables. Specially, we propose squeezed-state encoding, in which data is encoded as either in the amplitude or the phase. The kernels can be calculated on a quantum computer and then are combined with classical machine learning, e.g. support vector machine, for training and predicting tasks. Their comparisons with other classical kernels are also addressed. Lastly, we discuss physical implementations of squeezed-state encoding for machine learning in quantum platforms such as trapped ions.
description: 5 pages, 4 figures
$L^1$-optimality conditions for circular restricted three-body problems
Creators: name: Chen, Zheng
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this paper, the L1-minimization for the translational motion of a spacecraft in a circular restricted three-body problem (CRTBP) is considered. Necessary con- ditions are derived by using the Pontryagin Maximum Principle, revealing the existence of bang-bang and singular controls. Singular extremals are detailed, re- calling the existence of the Fuller phenomena according to the theories developed by Marchal in Ref. [14] and Zelikin et al. in Refs. [12, 13]. The sufficient opti- mality conditions for the L1-minimization problem with fixed endpoints have been solved in Ref. [22]. In this paper, through constructing a parameterised family of extremals, some second-order sufficient conditions are established not only for the case that the final point is fixed but also for the case that the final point lies on a smooth submanifold. In addition, the numerical implementation for the optimality conditions is presented. Finally, approximating the Earth-Moon-Spacecraft system as a CRTBP, an L1-minimization trajectory for the translational motion of a spacecraft is computed by employing a combination of a shooting method with a continuation method of Caillau et al. in Refs. [4, 5], and the local optimality of the computed trajectory is tested thanks to the second-order optimality conditions established in this paper.