cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Electrically switchable giant Berry curvature dipole in silicene, germanene and stanene
Creators: name: Bandyopadhyay, Arka
name: Joseph, Nesta Benno
name: Narayan, Awadhesh
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The anomalous Hall effect in time-reversal symmetry broken systems is underpinned by the concept of Berry curvature in band theory. However, recent experiments reveal that the nonlinear Hall effect can be observed in non-magnetic systems without applying an external magnetic field. The emergence of nonlinear Hall effect under time-reversal symmetric conditions can be explained in terms of non-vanishing Berry curvature dipole arising from inversion symmetry breaking. In this work, we availed realistic tight-binding models, first-principles calculations, and symmetry analyses to explore the combined effect of transverse electric field and strain, which leads to a giant Berry curvature dipole in the elemental buckled honeycomb lattices -- silicene, germanene, and stanene. The external electric field breaks the inversion symmetry of these systems, while strain helps to attain an asymmetrical distribution of Berry curvature of a single valley. Furthermore, the topology of the electronic wavefunction switches from the band inverted quantum spin Hall state to normal insulating one at the gapless point. This band gap closing at the critical electric field strength is accompanied by an enhanced Berry curvature and concomitantly a giant Berry curvature dipole at the Fermi level. Our results predict the occurrence of an electrically switchable nonlinear electrical and thermal Hall effect in a new class of elemental systems that can be experimentally verified.
description: Published version
Datalog Rewritings of Regular Path Queries using Views
Creators: name: Francis, Nadime
name: Segoufin, Luc
name: Sirangelo, Cristina
Publisher: name: arXiv
Year: 2015
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: We consider query answering using views on graph databases, i.e. databases structured as edge-labeled graphs. We mainly consider views and queries specified by Regular Path Queries (RPQ). These are queries selecting pairs of nodes in a graph database that are connected via a path whose sequence of edge labels belongs to some regular language. We say that a view V determines a query Q if for all graph databases D, the view image V(D) always contains enough information to answer Q on D. In other words, there is a well defined function from V(D) to Q(D). Our main result shows that when this function is monotone, there exists a rewriting of Q as a Datalog query over the view instance V(D). In particular the rewriting query can be evaluated in time polynomial in the size of V(D). Moreover this implies that it is decidable whether an RPQ query can be rewritten in Datalog using RPQ views.
title: MR diagnosis of persistent hyperplastic primary vitreous
Creators: name: He, Jie
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Eyes
subject: MR
subject: Complications
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To study MRI diagnosis of persistent hyperplastic primary vitreous(PHPV) [1, 2] , so that to improve the understanding of its imaging findings and the diagnostic accuracy...
A class of Z' models with non-universal couplings and protected flavor-changing interactions
Creators: name: Fuentes-Martin, Javier
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by the $b\to s\ell^+\ell^-$ anomalies recently reported by the LHCb collaboration, I present a class of flavored U(1)' gauge extensions of the Standard Model that naturally accommodates them and possesses a rich phenomenology. This model is characterized by the presence of tree-level flavor-changing interactions in the down-quark sector, protected by off-diagonal quark-mixing matrix elements. Anomaly cancellation fixes the extension of the symmetry to the lepton sector in a very specific way, giving rise to flavor-conserving family-non-universal Z' couplings. The fermion content of this model is the same as in the SM while the scalar sector is extended with an extra Higgs doublet and a scalar singlet. The model will be tested in the next run of LHC and presents specific correlations in certain flavor observables that allow to clearly discriminate among them and from other new physics signals.
description: 10 pages, 2 figures. Prepared for the proceedings of the EPS-HEP 2015 conference, 22-29 July 2015, Vienna, Austria. v2: references added
The thermodynamics of isolated horizons in loop quantum gravity
Creators: name: Song, Shupeng
name: Long, Gaoping
name: Zhang, Cong
name: Zhang, Xiangdong
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The statistical mechanical calculation of the thermodynamical properties of non-rotating isolated horizons are studied in the loop quantum gravity framework. By employing the Hawking temperature and horizon mass of isolated horizons as physical inputs, the microcanonical ensemble associated with the system are well established. As a result, the black hole entropy and other thermodynamical quantities can be computed and consistent with well-known Hawking's semiclassical analysis. Moreover, the value of the Immirzi parameter of loop quantum gravity for {higher dimensional case and 4-dimensional U(1) case are} also obtained.
description: 9 pages, 1 figure;V2, 12 pages, U(1) group case in 4 dimensions is included, figure updated
title: Normative standards upon contrast-enhanced MR imaging of the knee and wrist in children
Creators: name: Maas, Mario
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Musculoskeletal joint
subject: Paediatric
subject: MR
subject: Normal variants
subject: Contrast agent-intravenous
subject: Inflammation
subject: Arthritides

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Juvenile idiopathic arthritis (JIA) is the most common form of rheumatic disease in childhood [1]. Inflammation of the synovium is the hallmark of disease in patients with JIA. Magnetic resonance imaging (MRI) after intravenous (IV) contrast...
The Heritage of a Life: Robert Stipe, 1928-2007
Creators: name: Howard, J. Myrick
name: Lu, Weiming
name: Stipe, Josie
name: Heath, Milton
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: The Carolina Planning Journal, the UNC Department of City and Regional Planning, and the broader planning community join preservationists from Chapel Hill, this state, and indeed around the country in remembering the remarkable life and far-reaching career of Robert Stipe, who died this past September. Stipe was certainly a pioneer in the field of conservation and historic preservation. From his base in Chapel Hill, he worked to legitimize the field and establish procedures and standards for preservation at the local, state, and federal levels. His edited volumes are used as university textbooks, while the ordinances and statutes he authored have enabled towns to preserve their past through historic district zoning. However, Stipe’s professional legacy is impossible to disentangle from the personal one, for he left an impact on the field not just through his writings, but also through his relationships of collaboration and mentoring. Four reflections here testify to Stipe’s commitment to preservation and to people. Myrick Howard provides an overview of Robert Stipe’s career and influence over more than one generation of students who went on to positions of leadership in land use, design, and preservation law. Weiming Lu writes in a more personal vein, as a fellow master’s student with Stipe in Regional Planning at UNC in the 1950s. Milton Heath describes the variety of ways that these friends and colleagues collaborated over the years. Finally, conversations with Stipe’s wife Josie and his son Fred provided the basis for an explanation of his motivations for dedicating his energies to historic preservation long before it was fashionable. The thread running through each piece is the radical idea, born in Robert Stipe as a young man and carried throughout an unexpectedly long life, to use the law to protect and enhance the landscape and design of cities and towns.
title: The role of radionuclide imaging with 123I-metaiodbenzilguanidine in assessing of the cardiac radiofrequency denervation effectiveness.
Creators: name: Saushkina, Julia
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Treatment effects
subject: Surgery
subject: Molecular imaging
subject: SPECT
subject: Nuclear medicine conventional
subject: Nuclear medicine
subject: Cardiac
subject: Outcomes

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The aim of the study was to evaluate the role of radionuclide imaging with 123 I-metaiodbenzilguanidine ( 123 I-MIBG) in assessing of the cardiac radiofrequency denervation...
title: Quantitative evaluation of myocardial perfusion of stress-induced SPECT / CT in the assessment of hemodynamic significant intermediate coronary artery stenose s: a comparative study with fractional flow reserve measurements
Creators: name: Solomyanyy, Viktor
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cardiac
subject: Interventional vascular
subject: SPECT-CT
subject: CAD
subject: Comparative studies
subject: Ischaemia / Infarction

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: We aimed to determine the association between MPS and FFR findings in intermediate degree stenosis and evaluate the added value of quantification in MPS...
Electrical Circuit Modelling of Nanofluidic Systems
Creators: name: Sebastian, John
name: Green, Yoav
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Nanofluidic systems exhibit transport characteristics that have made technological marvels such as desalination, energy harvesting, and highly sensitive biomolecule sensing possible by virtue of their ability to influence small currents due to the selective transport of ions. Traditionally many of these applications have relied on the use of nanoporous membranes. The immense complexities of membrane geometry often impede a comprehensive understanding of the underlying physics. To bypass the associated difficulties, here we consider the much simpler nanochannel array comprised of numerous nanochannels and elucidate the effects of interchannel interactions on the Ohmic response of the array. We demonstrate that a nanochannel array is equivalent to an array of mutually independent but identical unit-cells whereby the array can be represented by an equivalent electrical circuit of unit-cell resistances connected in a parallel configuration. We show that the total resistance of the system scales inversely to the number of channels. We further deconstruct the unit-cell to be a combination of multiple contributing resistances connected in series. We validate the theoretical model underlying these electrical abstractions using numerical simulations and experiments. Our approach to modeling realistic nanofluidic systems by their equivalent electrical circuit provides an invaluable tool for analyzing and interpreting experimental measurements, characterization of surface charge properties of newly developed materials, and a method for the design and development of function-specific nanofluidic devices.
Oscillating Sequences, Minimal Mean Attractability and Minimal Mean-Lyapunov-Stability
Creators: name: Fan, Aihua
name: Jiang, Yunping
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: Primary 11K65, 37A35, Secondary 37A25, 11N05

description: We define oscillating sequences which include the Möbius function in the number theory. We also define minimally mean attractable flows and minimally mean-L-stable flows. It is proved that all oscillating sequences are linearly disjoint from minimally mean attractable and minimally mean-L-stable flows. In particular, that is the case for the Möbius function. Several minimally mean attractable and minimally mean-L-stable flows are examined. These flows include the ones defined by all $p$-adic polynomials, all $p$-adic rational maps with good reduction, all automorphisms of $2$-torus with zero topological entropy, all diagonalized affine maps of $2$-torus with zero topological entropy, all Feigenbaum zero topological entropy flows, and all orientation-preserving circle homeomorphisms.
description: 43 pages, 4 figures
Reconsidering Traditional Urbanism
Creators: name: Bohl, Charles C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1999

description: The 1999 Weiss Symposium series assembled a dozen leading figures from the fields of planning, architecture, history, sociology, psychology, and journalism to discuss and debate traditional urbanism in five events held in the spring of 1999 at the University of North Carolina at Chapel Hill. This special section presents the ideas of three participants: Robert Russell, James Howard Kunstler, and Carroll William Westfall.
title: Arterial Spin Labeling (ASL) MRI: a non-invasive imaging technique for assessing placental blood flow
Creators: name: Siauve, Nathalie
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Foetal imaging
subject: MR-Diffusion/Perfusion
subject: Intrauterine diagnosis
subject: Foetus

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The aim of this study was to quantify placental blood flow, by arterial spin labeling (ASL) MRI at 4.7 T, in a rat...
Credibility of covid information on social media (dissertation)
Creators: name: Loh, Tsz
name: McPhetres, Jonathon
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: This study is for an Undergraduate dissertation. In this study, we explore the relationship between media credibility discernment and how variables such as prevention and social distancing measure as well as vaccine hesitancy, cognitive sophistication and scientific knowledge affect discernment accuracy.
title: Multidedector CT Angiography in brain death diagnosis: How to perform and evaluate?
Creators: name: Pekcevik, Yeliz
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Haemodynamics / Flow dynamics
subject: Computer Applications-3D
subject: CT-Angiography
subject: Neuroradiology brain

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Review the imaging protocols of multidedector CT angiography in diagnosis of the brain death Review the evaluation of the criteria and scoring systems in diagnosis by multidedector CT angiography according to the basis of literature findings Show...
Significant-loophole-free test of Bell's theorem with entangled photons
Creators: name: Giustina, Marissa
name: Versteegh, Marijn A. M.
name: Wengerowsky, Sören
name: Handsteiner, Johannes
name: Hochrainer, Armin
name: Phelan, Kevin
name: Steinlechner, Fabian
name: Kofler, Johannes
name: Larsson, Jan-Åke
name: Abellán, Carlos
name: Amaya, Waldimar
name: Pruneri, Valerio
name: Mitchell, Morgan W.
name: Beyer, Jörn
name: Gerrits, Thomas
name: Lita, Adriana E.
name: Shalm, Lynden K.
name: Nam, Sae Woo
name: Scheidl, Thomas
name: Ursin, Rupert
name: Wittmann, Bernhard
name: Zeilinger, Anton
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Local realism is the worldview in which physical properties of objects exist independently of measurement and where physical influences cannot travel faster than the speed of light. Bell's theorem states that this worldview is incompatible with the predictions of quantum mechanics, as is expressed in Bell's inequalities. Previous experiments convincingly supported the quantum predictions. Yet, every experiment requires assumptions that provide loopholes for a local realist explanation. Here we report a Bell test that closes the most significant of these loopholes simultaneously. Using a well-optimized source of entangled photons, rapid setting generation, and highly efficient superconducting detectors, we observe a violation of a Bell inequality with high statistical significance. The purely statistical probability of our results to occur under local realism does not exceed $3.74 \times 10^{-31}$, corresponding to an 11.5 standard deviation effect.
description: Supplementary Material is available as an arXiv ancillary file. Experimental data available on request--please contact the corresponding authors
title: Utility of abdominal imaging in MR staging of prostate cancer: help or hindrance?
Creators: name: McEvoy, Sinéad
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Genital / Reproductive system male
subject: Abdomen
subject: MR
subject: Staging
subject: Cancer
subject: Metastases

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Prostate cancer is the commonest noncutaneous malignancy affecting the male population in the western world. It is the sixth leading cause of cancer death in males. Death rates have decreased in much of the developed world including the UK and USA...
Observation of Universal Hall Response in Strongly Interacting Fermions
Creators: name: Zhou, T. -W.
name: Cappellini, G.
name: Tusi, D.
name: Franchi, L.
name: Parravicini, J.
name: Repellin, C.
name: Greschner, S.
name: Inguscio, M.
name: Giamarchi, T.
name: Filippone, M.
name: Catani, J.
name: Fallani, L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Hall effect, which originates from the motion of charged particles in magnetic fields, has deep consequences for the description of materials, extending far beyond condensed matter. Understanding such an effect in interacting systems represents a fundamental challenge, even for small magnetic fields. In this work, we used an atomic quantum simulator in which we tracked the motion of ultracold fermions in two-leg ribbons threaded by artificial magnetic fields. Through controllable quench dynamics, we measured the Hall response for a range of synthetic tunneling and atomic interaction strengths. We unveil a universal interaction-independent behavior above an interaction threshold, in agreement with theoretical analyses. The ability to reach hard-to-compute regimes demonstrates the power of quantum simulation to describe strongly correlated topological states of matter.
description: Main Text: 6 pages, 4 figures; Supplementary Material: 9 pages, 10 figures
Planck cold clumps in the $λ$ Orionis complex: I. Discovery of an extremely young Class 0 protostellar object and a proto-brown dwarf candidate in a bright rimmed clump PGCC G192.32-11.88
Creators: name: Liu, Tie
name: Zhang, Qizhou
name: Kim, Kee-Tae
name: Wu, Yuefang
name: Lee, Chang Won
name: Lee, Jeong-Eun
name: Tatematsu, Kenichi
name: Choi, Minho
name: Juvela, Mika
name: Thompson, Mark
name: Goldsmith, Paul F.
name: Liu, Sheng-yuan
name: Naomi, Hirano
name: Koch, Patrick
name: Henkel, Christian
name: Sanhueza, Patricio
name: He, JinHua
name: Rivera-Ingraham, Alana
name: Wang, Ke
name: Cunningham, Maria R.
name: Tang, Ya-Wen
name: Lai, Shih-Ping
name: Yuan, Jinghua
name: Li, Di
name: Fuller, Gary
name: Kang, Miju
name: Luong, Quang Nguyen
name: Liu, Hauyu Baobab
name: Ristorcelli, Isabelle
name: Yang, Ji
name: Xu, Ye
name: Hirota, Tomoya
name: Mardones, Diego
name: Qin, Sheng-Li
name: Chen, Huei-Ru
name: Kwon, Woojin
name: Meng, FanYi
name: Zhang, Huawei
name: Kim, Mi-Ryang
name: Yi, Hee-Weon
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We are performing a series of observations with ground-based telescopes toward Planck Galactic cold clumps (PGCCs) in the $λ$ Orionis complex in order to systematically investigate the effects of stellar feedback. In the particular case of PGCC G192.32-11.88, we discovered an extremely young Class 0 protostellar object (G192N) and a proto-brown dwarf candidate (G192S). G192N and G192S are located in a gravitationally bound bright-rimmed clump. The velocity and temperature gradients seen in line emission of CO isotopologues indicate that PGCC G192.32-11.88 is externally heated and compressed. G192N probably has the lowest bolometric luminosity ($\sim0.8$ L$_{\sun}$) and accretion rate (6.3$\times10^{-7}$ M$_{\sun}$~yr$^{-1}$) when compared with other young Class 0 sources (e.g. PACS Bright Red sources (PBRs)) in the Orion complex. It has slightly larger internal luminosity ($0.21\pm0.01$ L$_{\sun}$) and outflow velocity ($\sim$14 km~s$^{-1}$) than the predictions of first hydrostatic cores (FHSCs). G192N might be among the youngest Class 0 sources, which are slightly more evolved than a FHSC. Considering its low internal luminosity ($0.08\pm0.01$ L$_{\odot}$) and accretion rate (2.8$\times10^{-8}$ M$_{\sun}$~yr$^{-1}$), G192S is an ideal proto-brown dwarf candidate. The star formation efficiency ($\sim$0.3\%-0.4\%) and core formation efficiency ($\sim$1\%) in PGCC G192.32-11.88 are significantly smaller than in other giant molecular clouds or filaments, indicating that the star formation therein is greatly suppressed due to stellar feedback.
description: 26 pages, 28 figures, 6 tables, Accepted to ApJS
Enactment of transformational school leadership—insights from primary school and system leaders
Creators: name: Wilson Heenan, Inez
name: Lafferty, Niamh
name: Mannix McNamara, Patricia
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 39
subject: Education

description: Transformational leadership has been proposed as an approach that can inspire effective change. How this is manifest in schools is understudied in Irish primary schools, which have undergone significant change in recent years. The focus of this qualitative research study was primary school and system leaders’ knowledge of transformational school leadership, perceived benefits, limitations, and feasibility, and how transformational school leadership actually manifests in practice. Participants were recruited using purposive sampling. In-depth interviews were carried out with principals, deputy and assistant principals, and former school inspectors, with the interviews aligned to the following research questions: (1) How can we characterize school and system leaders’ knowledge, understanding and perceptions regarding the feasibility of transformational school leadership? (2) How do transformational school leadership behaviours manifest in primary school settings? Data analysis yielded the following themes and sub-themes: (1) Understanding of transformational school leadership: (i) transformation, change and growth, (ii) relationships, (iii) vision, mission, and goals, (iv) leading; (2) Perceptions of feasibility of transformational school leadership: (i) realism, (ii) people and relationships, (iii) practical challenges; (3) Benefits of transformational school leadership: (i) aspiration, (ii) culture, (iii) motivation and modelling, (iv) school community, (v) delivering quality learning; (4) Limitations of transformational school leadership: (i) personality, (ii) pressure, (iii) slow process, (iv) unexpected variables; (5) Manifestations of transformational school leadership: (i) idealised influence, (ii) inspirational motivation, (iii) individualised consideration, (iv) intellectual stimulation, (v) school development, (vi) improving curricular offerings. Participants’ positive disposition to transformational school leadership was encouraging and suggests the need for further research, specifically to examine potential synergy between transformational and distributed school leadership.
Bisimulation of Labelled State-to-Function Transition Systems Coalgebraically
Creators: name: Latella, Diego
name: Massink, Mieke
name: De Vink, Erik P
Publisher: name: arXiv
Year: 2015
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Labeled state-to-function transition systems, FuTS for short, are characterized by transitions which relate states to functions of states over general semirings, equipped with a rich set of higher-order operators. As such, FuTS constitute a convenient modeling instrument to deal with process languages and their quantitative extensions in particular. In this paper, the notion of bisimulation induced by a FuTS is addressed from a coalgebraic point of view. A correspondence result is established stating that FuTS-bisimilarity coincides with behavioural equivalence of the associated functor. As generic examples, the equivalences underlying substantial fragments of major examples of quantitative process algebras are related to the bisimilarity of specific FuTS. The examples range from a stochastic process language, PEPA, to a language for Interactive Markov Chains, IML, a (discrete) timed process language, TPC, and a language for Markov Automata, MAL. The equivalences underlying these languages are related to the bisimilarity of their specific FuTS. By the correspondence result coalgebraic justification of the equivalences of these calculi is obtained. The specific selection of languages, besides covering a large variety of process interaction models and modelling choices involving quantities, allows us to show different classes of FuTS, namely so-called simple FuTS, combined FuTS, nested FuTS, and general FuTS.
title: Signs of routine CT and MRI in differential diagnostics of venous and arterial stroke’s genesis
Creators: name: Semenov, Stanislav
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Neuroradiology brain
subject: Emergency
subject: Management
subject: CT
subject: MR
subject: Computer Applications-Detection, diagnosis

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Cryptogenic character of stroke is noted in cases 22-30% (1). Probably like cryptogenic often called venous stroke which is considered "relatively unknown cerebrovascular disease" occurring on different data from 0 to 5% of all strokes (2, 3, 4) and...
title: Leiomyomatosis beyond the uterus: intravenous leiomyomatosis, disseminated peritoneal leiomyomatosis, retroperitoneal leiomyomatosis and benign metastasizing leiomyoma
Creators: name: Maciel, Cristina
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Neoplasia
subject: Diagnostic procedure
subject: MR
subject: CT
subject: Veins / Vena cava
subject: Lung
subject: Genital / Reproductive system female

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Describe the uncommon growth patterns of extrauterine leiomyomas. Summarize the clinical presentation, pathologic features, differential diagnosis and the management of these entities. Highlight the spectrum of imaging findings that help guide the...
title: Imaging Features of Acute Pyelonephritis in Contrast Computed Tomography as Predictors of Need for Intervention
Creators: name: Wan, Catherine
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Infection
subject: Acute
subject: Comparative studies
subject: CT
subject: Urinary Tract / Bladder
subject: Interventional non-vascular
subject: Emergency

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Acute pyelonephritis is a common bacterial infection of the renal pelvis and kidney most often seen in young adult women 1 , and is a mimicker of acute abdomen in patients who present with sepsis and abdominal pain. Most patients with acute...
title: Quantitative volumetric CT-histogram analysis in N-staging of FDG-equivocal patients with lung cancer
Creators: name: Giesel, Frederik
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Lymph nodes
subject: Lung
subject: Molecular imaging
subject: CT
subject: PET-CT
subject: Diagnostic procedure
subject: Molecular imaging
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: An exact mediastinal N-staging is essential for therapy stratification in patients with lung cancer, since N3 patients are often excluded from primary surgery. Due to unclear findings in non-invasive staging via FDG-PET/CT and contrast-enhanced...
Single pion contribution to the hyperfine splitting in muonic hydrogen
Creators: name: Huong, Nguyen Thu
name: Kou, Emi
name: Moussallam, Bachir
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A detailed discussion of the long-range one-pion exchange (Yukawa potential) contribution to the 2S hyperfine splitting in muonic hydrogen which had, until recently, been disregarded is presented. We evaluate the relevant vertex amplitudes, in particular $π^0μ^+μ^-$, combining low energy chiral expansions together with experimental data on $π^0$ and $η$ decays into two leptons. A value of $Δ{E}^π_{HFS}= -(0.09 \pm 0.06)\ μ\rm{eV}$ is obtained for this contribution.
description: v2: Expanded and completed version
Rebuilding After Floyd?: CRC Regulations and Redevelopment Options Available to Littoral and Riparian Owners
Creators: name: McKown, Aaron M.
name: Moffitt, Donna D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: In the early morning hours of September 15. 1999. Hurricane Floyd ripped into North Carolina, pounding away at fragile beaches and dumping more than a foot of rain. When the skies finally cleared, almost one-third of the state was affected by flooding and heavy rains, more than a million residents were without power, hundreds of beach homes had been damaged or destroyed, and the total property damage for the state was estimated at more than $700 million. In addition. Floyd's fifteen-foot storm surge destroyed sand dunes and vegetation used to determine the setback line for oceanfront development along some beaches, thus relocating the invisible baseline significantly inland. As a result, dozens of homes severely damaged by Floyd's fury may now be designated as nonconforming uses, thereby prohibiting these landowners from rebuilding. This article focuses on several post-hurricane issues regarding development along North Carolina ocean shorelines that have emerged in the wake of Hurricane Floyd.
title: Optimization of differential diagnosis of non-palpable breast neoplasms using digital breast tomosynthesis
Creators: name: Pavlova, Tamara
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Neoplasia
subject: Image verification
subject: Cancer
subject: Diagnostic procedure
subject: Computer Applications-Detection, diagnosis
subject: Computer Applications-3D
subject: Ultrasound
subject: Mammography
subject: Digital radiography
subject: Oncology
subject: Breast

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Womenwith breast cancerin developed countries firmly holds the first place among oncopathology.Therefore, early diagnosis of breast cancer remains one of the most urgent problems of modern oncology and radiology. A distinctive feature of the breast...
Ricci-cubic holographic dark energy
Creators: name: Rudra, Prabir
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work, we propose the Ricci-cubic holographic dark energy model. The model is inspired by the cubic curvature invariant formed by the contraction of three Riemann tensors. A combination of Ricci scalar and the cubic invariant is used to describe the infrared cutoff of the holographic dark energy. Such a construction is extremely useful since the evolution does not depend on the past or future features of the universe, but completely on its present features. Moreover, the use of invariants makes the theory more fundamental in nature. We have constructed the model and studied its cosmological features. The analytical solutions of various cosmological parameters such as the density parameter, equation of state parameter, and deceleration parameter are extracted and their behaviour is studied. It is seen that the holographic dark energy model can exhibit the entire thermal history of the universe, sequentially starting from radiation in the early universe, followed by matter, and finally the dark energy dominated epoch at late times. The equation of state parameter shows that the model can exhibit quintessence nature, phantom-divide crossing, and even phantom nature depending on the choice of parameter spaces.
description: 16 pages, 6 figures
A cut-cell finite volume - finite element coupling approach for fluid-structure interaction in compressible flow
Creators: name: Pasquariello, Vito
name: Hammerl, Georg
name: Örley, Felix
name: Hickel, Stefan
name: Danowski, Caroline
name: Popp, Alexander
name: Wall, Wolfgang A.
name: Adams, Nikolaus A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We present a loosely coupled approach for the solution of fluid-structure interaction problems between a compressible flow and a deformable structure. The method is based on staggered Dirichlet-Neumann partitioning. The interface motion in the Eulerian frame is accounted for by a conservative cut-cell Immersed Boundary method. The present approach enables sub-cell resolution by considering individual cut-elements within a single fluid cell, which guarantees an accurate representation of the time-varying solid interface. The cut-cell procedure inevitably leads to non-matching interfaces, demanding for a special treatment. A Mortar method is chosen in order to obtain a conservative and consistent load transfer. We validate our method by investigating two-dimensional test cases comprising a shock-loaded rigid cylinder and a deformable panel. Moreover, the aeroelastic instability of a thin plate structure is studied with a focus on the prediction of flutter onset. Finally, we propose a three-dimensional fluid-structure interaction test case of a flexible inflated thin shell interacting with a shock wave involving large and complex structural deformations.
description: - minor changes (typos, added missing reference) - published version (Journal of Computational Physics)
title: Fetal MRI in evaluating renal anomalies
Creators: name: Behairy, Noha
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Foetal imaging
subject: Kidney
subject: MR
subject: Comparative studies
subject: Congenital
subject: Foetus

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Our aim was to detect the accuracy of fetal MRI in diagnosing urinary tract anomalies in comparison to ultrasonographic findings and fetal...
ATP consumption of eukaryotic flagella measured at a single-cell level
Creators: name: Chen, Daniel T. N.
name: Heymann, Michael
name: Fraden, Seth
name: Nicastro, Daniela
name: Dogic, Zvonimir
Publisher: name: arXiv
Year: 2015
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The motility of cilia and flagella is driven by thousands of dynein motors that hydrolyze adenosine triphosphate (ATP). Despite decades of genetic, biochemical, structural and biophysical studies, some aspects of ciliary motility remain elusive, such as the regulation of beating patterns and the energetic efficiency of these nanomachines. Here, we introduce an experimental method to measure ATP consumption of actively beating axonemes on a single-cell level. We encapsulated individual sea urchin sperm with demembranated flagellum inside water-in-oil emulsion droplets and measured the axonemes ATP consumption by monitoring fluorescence intensity of a fluorophore-coupled reporter system for ATP turnover in the droplet. Concomitant phase contrast imaging allowed us to extract a linear dependence between the ATP consumption rate and the flagellar beating frequency, with ~2.3e5 ATP molecules consumed per beat of a demembranated flagellum. Increasing the viscosity of the aqueous medium led to modified beating waveforms of the axonemes and to higher energy consumption per beat cycle. Our single-cell experimental platform provides both new insights into the beating mechanism of flagella and a powerful tool for future studies.
description: 29 pages, 5 main figures, 4 supplemental figures, 1 supplemental table
A phase-field model for quasi-dynamic nucleation, growth, and propagation of rate-and-state faults
Creators: name: Fei, Fan
name: Mia, Md Shumon
name: Elbanna, Ahmed E.
name: Choo, Jinhyun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Despite its critical role in the study of earthquake processes, numerical simulation of the entire stages of fault rupture remains a formidable task. The main challenges in simulating a fault rupture process include complex evolution of fault geometry, frictional contact, and off-fault damage over a wide range of spatial and temporal scales. Here, we develop a phase-field model for quasi-dynamic fault nucleation, growth, and propagation, which features two standout advantages: (i) it does not require any sophisticated algorithms to represent fault geometry and its evolution; and (ii) it allows for modeling fault nucleation, propagation, and off-fault damage processes with a single formulation. Built on a recently developed phase-field framework for shear fractures with frictional contact, the proposed formulation incorporates rate- and state-dependent friction, radiation damping, and their impacts on fault mechanics and off-fault damage. We show that the numerical results of the phase-field model are consistent with those obtained from well-verified approaches that model the fault as a surface of discontinuity, without suffering from the mesh convergence issue in the existing continuous approaches to fault rupture (e.g. the stress glut method). Further, through numerical examples of fault propagation in various settings, we demonstrate that the phase-field approach may open new opportunities for investigating complex earthquake processes that have remained overly challenging for the existing numerical methods.
Book Reviews
Creators: name: Bishop, Bill
name: Skena, Michael
name: Akers, Trey
name: Brubaker, Jeffery
name: Archer-Rosenthal, Dana
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: Book reviews for the following: A Better Way to Zone: Ten Principles to Create More Livable Cities by Donald L. Elliott; Growing Cooler: The Evidence on Urban Development and Climate Change by Reid Ewing, Keith Bartholomew, Steve Winkelman, Jerry Walters and Don Chen; A Legal Guide to Urban and Sustainable Development for Planners, Developers and Architects by Daniel Slone and Doris Goldstein with W. Andrew Gowder Jr.; Native to Nowhere: Sustaining Home and Community in a Global Age by Timothy Beatley; The Option of Urbanism by Christopher Leinberger
title: Progression to moderately and poorly differentiated hepatocellular carcinoma patients after radical hepatectomy: correlation with blood supply evaluated with preoperative multi-phase enhanced CT
Creators: name: Gao, Shun-Yu
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Abdomen
subject: Oncology
subject: Thyroid / Parathyroids
subject: CT
subject: MR
subject: PET
subject: Biopsy
subject: Staging
subject: Image guided radiotherapy

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To explore the relationship between the degree and style of enhancement of the tumor on preoperative enhanced CT and the prognosis in moderately and poorly differentiated hepatocellular carcinoma (HCC) patients after radical...
Land, Lines and Levies: A Study of Voluntary Annexations in High Point, NC
Creators: name: Dowling, Suzanne
name: Maxim, Jeffery
name: Washington, Najeema Davis
name: Quinterno, John
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002

description: The City of High Point used voluntary annexations to grow in area and population during the 1990s. Careful planning is needed to insure the effective provision of municipal services. Conducting modified cost-benefit analyses is one way to gauge the financial costs and revenues associated with potential annexations. This report describes the methodology underlying a computer application that can forecast the financial costs and benefits associated with proposed voluntary annexations. The results constitute a tool that High Point's council and management can use to manage growth.
Algebraic Properties of Riemannian Manifolds
Creators: name: Chung, Youngjoo
name: Hwang, Chi-Ok
name: Yang, Hyun Seok
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Algebraic properties are explored for the curvature tensors of Riemannian manifolds, using the irreducible decomposition of curvature tensors. Our method provides a powerful tool to analyze the irreducible basis as well as an algorithm to determine the linear dependence of arbitrary Riemann polynomials. We completely specify 13 independent basis elements for the quartic scalars and explicitly find 13 linear relations among 26 scalar invariants. Our method provides several completely new results, including some clues to identify 23 independent basis elements from 90 quintic scalars, that are difficult to find otherwise.
description: A few typos corrected; 40 pages (4 appendices: 16 pages). To appear in General Relativity and Gravitation
Book Review: A Better Way to Zone: Ten Principles to Create More Livable Cities
Creators: name: Akers, Trey
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: Elliott’s comprehensive account of zoning practice diligently chronicles the evolution of code theory, development and implementation throughout zoning’s brief but complex history. Like other authors, Elliot often describes the increasingly complex nature of regulations as the legal detritus from several decades of amendments that have clogged the process. In this way he shows that, more often than not, zoning tends to be evolutionary, not revolutionary (4). To sort through this growing mass of legalese, he provides an in-depth description of every main zoning category—Euclidean, form-based codes, PUD developments, performance codes and hybrid codes—as well as the legal background of each model. In fact, Elliott’s legal background enables him to conduct detailed analysis of each zoning method’s statutory repute. Equally impressive, he distills the byzantine patchwork of these laws into straightforward, cogent summaries. The interesting and high-quality writing that marks the pages masks what would otherwise be a very dry read.
title: Risk Management as a Part of Quality Management System. MRI Private Clinic. Russia
Creators: name: Yastrebova, Marina
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Quality assurance
subject: Audit and standards
subject: MR
subject: Management

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The structured approach to reduce risk levels till possible minimum for patients and personnel during MRI examinations on all steps of patient management in MRI department, using all the principles of the Quality Management System. When the staff...
On the exponents of free and nearly free projective plane curves
Creators: name: Dimca, Alexandru
name: Sticlaru, Gabriel
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics

description: We show that all the possible pairs of integers occur as exponents for free or nearly free irreducible plane curves and line arrangements, by producing only two types of simple families of examples. The topology of the complements of these curves and line arrangements is also discussed, and many of them are shown not to be $K(π,1)$ spaces.
description: v2: a section is added where the topology of the complements of our examples of free and nearly free curves is discussed. In particular, many of them are shown not to be aspherical spaces
An excursion into the core of the cluster lens Abell 1689
Creators: name: Ghosh, Agniva
name: Adams, Dominic
name: Williams, Liliya L. R.
name: Liesenborgs, Jori
name: Alavi, Anahita
name: Scarlata, Claudia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Abell 1689 is a well studied cluster of galaxies and one of the largest gravitational lens systems ever observed. We have obtained a reconstruction of the cluster Abell 1689 using Grale, a free-form lens inversion method that relies exclusively on the multiple image data. Non-inclusion of any data related to cluster member galaxies ensures an unbiased measure of the mass distribution, which is the most notable feature of free-form methods like Grale. We used two different sets of multiple image systems from the available strong lensing data - one containing only the secure systems (107 images), and the other containing all available systems, only excluding some very non-secure systems (151 images). For the very well-constrained central $\sim$100 kpc region of the cluster we made detailed comparison of the Grale reconstructed lensing mass and stellar mass retrieved by the Spectral Energy Distribution (SED) fitting software FAST++. We found a light-unaccompanied mass peak in this region, whose existence, while tentative, is favored by the distribution of nearby images that are local maxima in the Fermat potential. However, further tests, using different methodologies are needed to confirm the reality of this feature. If it shown to be real, this light-unaccompanied mass peak is consistent with dark matter self-interaction cross-section $σ\lesssim 1$cm$^2$/g, while being in tension with larger cross-sections.
description: 14 pages, 11 figures