cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The role of geometry in the superfluid flow of nonlocal photon fluids
Creators: name: Vocke, David
name: Wilson, Kali
name: Marino, Francesco
name: Carusotto, Iacopo
name: Wright, Ewan M.
name: Roger, Thomas
name: Anderson, Brian P.
name: Öhberg, Patrik
name: Faccio, Daniele
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Other Condensed Matter (cond-mat.other)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recent work has unveiled a new class of optical systems that can exhibit the characteristic features of superfluidity. One such system relies on the repulsive photon-photon interaction that is mediated by a thermal optical nonlinearity and is therefore inherently nonlocal due to thermal diffusion. Here we investigate how such a nonlocal interaction, which at a first inspection would not be expected to lead to superfluid behavior, may be tailored by acting upon the geometry of the photon fluid itself. Our models and measurements show that restricting the laser profile and hence the photon fluid to a strongly elliptical geometry modifies thermal diffusion along the major beam axis and reduces the effective nonlocal interaction length by two orders of magnitude. This in turn enables the system to display a characteristic trait of superfluid flow: the nucleation of quantized vortices in the flow past an extended physical obstacle. These results are general and apply to other nonlocal fluids, such as dipolar Bose-Einstein condensates, and show that "thermal" photon superfluids provide an exciting and novel experimental environment for probing the nature of superfluidity, with applications to the study of quantum turbulence and analogue gravity.
MPEC 2025-C42 : 2025 CC1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 CC1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
title: Incidental uptake in the breast on FDG PET/CT: Multimodality imaging features and pathologic correlation
Creators: name: Jeong, Won Gi
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Breast
subject: PET-CT
subject: Mammography
subject: Ultrasound
subject: Diagnostic procedure
subject: Cancer

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The purpose of our educational exhibit is to: illustrate unexpected focal hypermetabolic activity in the breast in patients undergoing PET/CT for reasons other than for breast cancer. discuss and illustrate the normal physiological pattern of FDG...
Waste Not, Want Not: Financing Swine Biogas Projects in Eastern North Carolina
Creators: name: Fryberger, Carolyn
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Eastern North Carolina is home to the densest industrial swine farming in the world.  From the perspective of renewable energy generation this may be the equivalent of sitting on a gold mine. Anaerobic digestion (AD), or biogas, technologies can produce electricity from swine waste, generating new revenue streams for farmers and mitigating odor and other negative impacts on neighboring communities. These systems are capital intensive and remain unproven however, and as such financing is hard to find. This paper lays out the current policy framework and available funding sources for swine biogas systems and analyzes the effect of three distinct policy interventions on the financial feasibility of a typical installation.
Replication of semantic biasing on attention
Creators: name: Zhang, Xiaoli
name: Shomstein, Sarah
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Cognitive Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Attention
subject: Semantic bias

description: It has been shown that semantic information, even when task-irrelevant, may bias attention during visual search. This result has been shown in multiple in-lab experiments. The current pre-registered project aims at replicating this result pattern in lab before further research questions and experiments are built on top of this result.
2000-2001 - Vol 131
Creators: name: University, Oxford
Publisher: name: University of Oxford
Year: 2023

description: This is a consolidated archive of the Oxford University Gazette, the University's journal of record since 1870. Volumes which are more than 80 years old are available to all. For volumes less than 80 years old, access to certain student-related content is limited to those with Oxford University Single Sign-On accounts for data protection purposes. Redacted copies of files are publicly available for volumes since 2004; public access to other volumes is available upon request. Please follow the instructions at the top of the page to request access.
Spectra of accelerated particles at supernova shocks in the presence of neutral hydrogen: the case of Tycho
Creators: name: Morlino, G.
name: Blasi, P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The presence of neutral hydrogen in the shock proximity changes the structure of the shock and affects the spectra of particles accelerated through the first-order Fermi mechanism. This phenomenon has profound implications for the interpretation of the multifrequency spectra of radiation from supernova remnants. Neutrals that undergo charge exchange with hot ions downstream of the shock may result in fast neutrals moving towards the upstream gas, where they can suffer additional charge exchange or ionisation reactions, thereby depositing energy and momentum upstream. Here we discuss the implications of this neutral return flux, which was already predicted in our previous work on neutral mediated supernova shocks, and show how the spectra of accelerated particles turn out to be appreciably steeper than $p^{-4}$, thereby affecting the gamma ray spectra from supernova remnants in general and from Tycho specifically. The theory that describes non-linear diffusive shock acceleration in the presence of neutral hydrogen has been developed in recent years. Here we use a semi-analytical theory developed in previous work and specialise our predictions to the case of the Tycho supernova shock, where there is evidence that the spectrum of the accelerated cosmic rays is steeper than expected from the traditional theory of diffusive shock acceleration. We show that, if the fraction of neutral hydrogen in the vicinity of the Tycho supernova shock is, as suggested by observations, ~70-90, then spectra of accelerated protons steeper than $p^{-4}$ may be a natural consequence of charge exchange reactions and the associated neutral return flux. The spectral shape is affected by this phenomenon for particles with energies below ~100-1000 GeV, for which the diffusion length is less than or at most comparable to the pathlength of charge exchange and ionisation upstream of the shock.
description: 6 pages, 3 figures. Accepted for publication by A&A
Examining North Carolina's compensatory wetland mitigation program from the perspectives of land use planning and social equity
Creators: name: Stewart, Audrey
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: North Carolina's Ecosystem Enhancement Program (EEP) is responsible for providing the majority of compensatory stream and wetland mitigation sites throughout the state, including all off-site mitigation for the N.C. Department of Transportation. Two emerging criteria by which to assess the effectiveness of mitigation efforts include whether the mitigation process promotes social equity, and whether stream and wetland mitigation planning is coordinated with other types of land use planning. The first part of this study assesses the socioeconomic makeup of census tracts around impact sites in comparison to mitigation sites using two-tailed paired t-tests. The second part of the study maps the location of the EEP's accumulated advance mitigation sites in comparison to urban growth indicators by watershed around the state. The study finds that systematic socioeconomic disparities exist between communities that lose and gain streams and wetlands through the compensatory mitigation process. Streams and wetlands are systematically relocated from more advantaged to less advantaged communities. Communities near impact sites, as compared to those around mitigation sites, have higher total populations and population densities, higher percentages of whites and lower percentages of blacks and Hispanics, higher levels of education, lower poverty rates, higher median incomes, and higher median homes values. This finding warrants further consideration in both research and also state-level environmental policy. Additionally, growth indicators such as population growth rates and population growth projections do not significantly correlate with the amount of advance mitigation acquired by the EEP by watershed, implying that growth indicators are not effectively incorporated in the mitigation process. Thus, the EEP, the NC DOT and the Army Corps of Engineers have an opportunity to improve the efficiency of mitigation by more proactively and formally incorporating growth indicators and projections into the mitigation planning process.
title: Lessons from a discrepency meeting: Cases of missed gastrointestinal pathology
Creators: name: Hussain, Shahid
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Education
subject: CT
subject: Pancreas
subject: Gastrointestinal tract
subject: Colon
subject: Health policy and practice
subject: Safety
subject: Education and training
subject: Quality assurance

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To identify commonly missed gastrointestinal pathologies on radiological investigations performed at our institution, and devise learning points to reduce the future incidence of such...
Insights into Production of Pottery from the End of the La Tène Period in Central Europe
Creators: name: Volf, Jan
name: Slavíček, Karel
name: Thér, Richard
name: Trnová, Kristýna
Publisher: name: Zenodo
Year: 2024
Subjects: subject: Late La Tène period
subject: X-ray fluorescence spectrometry
subject: Computed tomography
subject: Thin section analysis
subject: Pottery analysis

description: Pottery surveys enable to study not only manufacturing process but also contacts between communities and organization of societies. Manufacture of ceramic vessels was influenced by multiple factors, such as the raw material used, function of vessels in the society, organization of their production, and cultural conventions. The research of pottery represents an important source of information about changes of society during the late La Tène period in Central Europe. At the end of this period and the beginning of the Roman period, in the first century BC, settlement network and material culture, including pottery, underwent a significant transformation. To understand the characteristics of this transformation, it is necessary to study ceramic assemblages from the end of the La Tène period, specifically from the phase LT D1b. In Bohemia, one of these assemblages is represented by pottery from K?inec in Central Bohemia. Our study of the assemblage from K?inec incorporated macroscopic survey, x-ray fluorescence analysis, thin section analysis and computed tomography. Using these analyses, we have obtained new data on the settlement's position in the regional economic and social network which suggest that at the end of the La Tène period contacts between settlements in the region included the transportation of ceramic vessels or material for their manufacture, but potters from different communities did not share knowledge about pottery production. The presented approach offers a deeper understanding of the organization of society at the end of the La Tène period and demonstrates the potential of multifaceted pottery research in archaeological studies.

Conference 30th EAA Annual Meeting in Rome, Poster ID388

Link (Conference): https://www.e-a-a.org/eaa2024

Link (Poster): https://live.allintheloop.net/Documents/EAA/EAA2024/doc_view_details/126961
title: Characterizing excitatory transmission in melanin-concentrating hormone neurons
Creators: name: Bowes, Sherri C.
Publisher: name: Memorial University of Newfoundland
Year: 2020

description: Melanin-concentrating hormone (MCH) neurons of the lateral hypothalamus are involved in homeostatic mechanisms including energy balance and sleep wake cycles. Glutamate is an excitatory transmitter that is released by neurons and astrocytes, providing an excitatory control over neuronal activity. Here, I investigated the role of glutamate transporters and glutamate receptors in excitatory signaling onto MCH neurons. Using patch clamp electrophysiology, I have identified three distinct excitatory glutamatergic currents in MCH neurons: fast EPSC, slow EPSC, and tonic currents. I demonstrate that presynaptic train stimulation induces EPSCs with two distinct time courses (fast and slow) while tonic currents are due to ambient glutamate that accumulates when glutamate transporters are inhibited. Furthermore, these currents are mediated by distinct glutamate receptor pools, which are under the regulation of different glutamate transporters. This work contributes to the ongoing understanding of basic excitatory signaling in MCH neurons. Given the known role of MCH in promoting sleep and weight gain this may have functional implications for sleep and energy homeostasis.
title: Simple Transformation of the Azulene System into the Pentalene System
Creators: name: Hafner, Klaus
name: Goltz, Michael
Publisher: name: Wiley
Year: 2023

description: Cycloaddition reactions of the azulene system 1 with electron-poor and electron-rich alkynes provide a simple entry to derivatives of heptalene 2[¹] and cyclopentacyclononene 3[²]. We have recently also been able to accomplish the transformation of 1 into the pentalene system 4.
title: Predicting axillary lymph node metastasis in breast cancer with multimodality imaging
Creators: name: Cheung, Joo Yeon
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Breast
subject: Lymph nodes
subject: Ultrasound
subject: Mammography
subject: MR
subject: Comparative studies
subject: Outcomes analysis
subject: Metastases

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Axillary lymph node metastasis is the most important prognostic factor in the treatment of patients with breast cancer. Previously, axillary lymph node dissection has been the reference standard for axillary node assessment. But this procedure can...
Finite-time fluctuations for the totally asymmetric exclusion process
Creators: name: Prolhac, Sylvain
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The one-dimensional totally asymmetric simple exclusion process (TASEP), a Markov process describing classical hard-core particles hopping in the same direction, is considered on a periodic lattice of $L$ sites. The relaxation to the non-equilibrium steady state, which occurs on the time scale $t\sim L^{3/2}$ for large $L$, is studied for the half-filled system with $N=L/2$ particles. Using large $L$ asymptotics of Bethe ansatz formulas for the eigenstates, exact expressions depending explicitly on the rescaled time $t/L^{3/2}$ are obtained for the average and two-point function of the local density, and for the current fluctuations for simple (stationary, flat and step) initial conditions, relating previous results for the infinite system to stationary large deviations. The final formulas have a nice interpretation in terms of a functional integral with the action of a scalar field in a linear potential.
description: 5+3 pages, 5 figures
title: 3T breast MRI with a CAD system for treated breast: Experience and challenges
Creators: name: Seo, Bo Kyoung
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cancer
subject: CAD
subject: MR
subject: Breast

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1.To illustrate various experiences and challenges of high quality 3T breast MRI with CAD analyses for treated breast 2.To emphasize technical aspect of the CAD system for evaluation of treated breast 3.To discuss advantages and clinical...
Minicharged Particles from the Sun: A Cutting-Edge Bound
Creators: name: Vinyoles, Núria
name: Vogel, Hendrik
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the impact on the Sun of an exotic energy-loss channel caused by plasmon decay into fermionic minicharged particles with charge $εe$ and mass $m_f$. We compare solar models with this extra emission to helioseismological and neutrino data, obtaining a bound $ε<2.2\times 10^{-14}\ ({\rm 95\%\, CL})$ for $m_f\lesssim 25 \, \text{eV}$. Our result is comparable to previous limits from the cooling of globular cluster stars, while at the same time it is better understood and takes theoretical and observational errors into account.
description: Improved statistical treatment, figures and bounds updated, matches the version accepted in JCAP
title: Atypical findings of benign lesions of the breast
Creators: name: Panourgias, Evangelia
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Breast
subject: MR
subject: Imaging sequences
subject: Tissue characterisation

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Breast MRI is an increasingly used imaging test for the characterization of breast lesions. It also reveals unsuspected benign lesions, many of which are easily recognized and may be ignored. Many findings on breast MRI are clearly benign do not...
Can communication technologies reduce loneliness and social isolation in older people? A Scoping Review of Reviews
Creators: name: Döring, Nicola
name: Conde, Melisa
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Social and Behavioral Sciences
subject: coping behavior
subject: elderly
subject: ICT
subject: ICT impact
subject: ICT use
subject: loneliness
subject: methods-driven research reviews
subject: older people
subject: research review
subject: scoping review
subject: senior citizens
subject: social integration
subject: social isolation
subject: targeted invervention

description: The goal of this study is to identify the role communication technologies play in reducing loneliness and social isolation among older people - whether during targeted interventions by external actors or during self-directed coping by those affected - based on previous research reviews.
Astrophysical calibration of gravitational-wave detectors
Creators: name: Pitkin, M.
name: Messenger, C.
name: Wright, L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate a method to assess the validity of gravitational-wave detector calibration through the use of gamma-ray bursts as standard sirens. Such signals, as measured via gravitational-wave observations, provide an estimated luminosity distance that is subject to uncertainties in the calibration of the data. If a host galaxy is identified for a given source then its redshift can be combined with current knowledge of the cosmological parameters yielding the true luminosity distance. This will then allow a direct comparison with the estimated value and can validate the accuracy of the original calibration. We use simulations of individual detectable gravitational-wave signals from binary neutron star (BNS) or neutron star-black hole systems, which we assume to be found in coincidence with short gamma-ray bursts, to estimate any discrepancy in the overall scaling of the calibration for detectors in the Advanced LIGO and Advanced Virgo network. We find that the amplitude scaling of the calibration for the LIGO instruments could on average be confirmed to within $\sim 10\%$ for a BNS source within 100 Mpc. This result is largely independent of the current detector calibration method and gives an uncertainty that is competitive with that expected in the current calibration procedure. Confirmation of the calibration accuracy to within $\sim 20\%$ can be found with BNS sources out to $\sim 500$ Mpc.
description: Accepted for publication in Physical Review D
Vector leptoquark resolution of $R_K$ and $R_{D^{(*)}}$ puzzles
Creators: name: Fajfer, Svjetlana
name: Košnik, Nejc
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We propose that three recent anomalies in $B$ meson decays, $R_{D^{(*)}}$, $R_K$, and $P_5'$, might be explained by a single vector leptoquark weak triplet state. The constraints on the parameter space are obtained by considering $t \to b τ^+ ν$ data, lepton flavor universality tests in the kaon sector, bounds on $B \to K^{(*)} \bar νν$, bound on the lepton flavor violating decay $B \to K μτ$, and measurements of $b \to c μ^- \barν$ decays. The presence of such vector leptoquark could be exposed in precise measurements of $t \to b τν$ and $B \to K^{(*)} \bar νν$ decays. The model also predicts approximate equality of lepton flavor universality ratios $R_{K^*}$, $R_{K}$, and suppressed branching fraction of $B_s \to μ^+ μ^-$.
description: Update on B->Knu nu; 8 pages, 1 figure
1890-1891 - Vol 21
Creators: name: University, Oxford
Publisher: name: University of Oxford
Year: 2023

description: The PDF viewer for this record is not working at present; please download the file to read it. We apologise for this inconvenience and we are working to resolve the technical issue causing this problem as soon as possible. This is a consolidated archive of the Oxford University Gazette, the University's journal of record since 1870. Volumes which are more than 80 years old are available to all.
title: Image quality of ultra-high resolution CT in breast cancer：phantom study
Creators: name: Gomi, Shiho
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cancer
subject: Comparative studies
subject: CT-High Resolution
subject: Breast

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To compare and evaluate the image quality of ultra-high resolution CT (U-HRCT) with conventional MDCT by phantom of the breast. To show potential of U-HRCT in the diagnosis of breast cancer. Show some image case of U-HRCT for human...
Additional file 1 of Casein kinase 1α mediates estradiol secretion via CYP19A1 expression in mouse ovarian granulosa cells
Creators: name: Luo, Xuan
name: Zhang, Di
name: Zheng, Jiaming
name: Liu, Hui
name: Sun, Longjie
name: Guo, Hongzhou
name: Wang, Lei
name: Cui, Sheng
Publisher: name: figshare
Year: 2024
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 1: Figure S1. Negative control of CK1α in different tissues. The localization of CK1α in the ovaries, uterus and oviduct of an adult mouse detected by IHC. Paraffin slices of tissues were incubated with CK1α antibodies, and antibodies were replaced with anti-rabbit IgG for negative control. Granular cell, Epithelial cells, Glands, Myometrium. Each tissue was analyzed in three biological replicates. Scale bar = 100 μm
Intermittent vs. Continuous Water Supply: What benefits do households actually receive? Evidence from two cities in India
Creators: name: Onda, Kyle Steven
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Almost all urban water systems in South Asia provide intermittent water supply. Intermittent supply
can impair water quality and cause users to adopt costly coping mechanisms. In 2009, Nagpur and Amravati,
two cities in Maharashtra, India, began offering continuous water supply to pilot areas, hoping to improve
water access, water quality and reduce household storage, treatment, and collection of water from alternate
sources. Using a mixed-methods approach that used a billing panel dataset from Amravati and as well
as utility staff and household interviews in both cities, continuous water supply was found to increase
water demand compared to intermittent supply, especially among slum households, although storage and
treatment practices fort he most part remained unchanged while other water collection activities were not
eliminated. The results indicate that many of the purported benefits of continuous water supply do not accrue
automatically to the consumer.
title: Diffusion-weighted MR imaging: Is it an optimal alternative to breast contrast studies?
Creators: name: Helal, Maha
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Breast
subject: MR-Functional imaging
subject: MR
subject: Mammography
subject: Contrast agent-intravenous
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Breast cancer is one of the most common types of cancer. Despite advances in mammography, at least one in four malignant tumors remains undetected using screening mammography alone [3] Dual-energy CEDM has a higher diagnostic accuracy for the...
Development Patterns and Municipal Finances: An Analysis of Sprawl and Spending in 82 U.S. Cities
Creators: name: Welch, Patrick
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Sprawl has long been lamented in urban planning circles for its detrimental environmental, social, and financial impacts. However, most of the widely cited literature use theoretical models to measure the financial impacts and inefficiencies of sprawling development. This paper examines the relationship between sprawl and municipal finances empirically, by analyzing 23 separate financial categories in 82 of the largest cities in the United States between the years 2000 and 2010. First, the concept of sprawl is defined and a brief overview of existing literature on the impacts of sprawl is presented. Then, 23 separate multivariate regression models are created and analyzed using a sprawl index calculated by Hamidi and Ewing (2014) to predict each of the financial categories, including various expenditure categories, debt outstanding, and capital outlay. In line with existing literature, the research finds that there is a significant and negative relationship between sprawl and capital outlay expenses. More compact, accessible cities spend less on capital outlay. The findings indicate that urban form and land use patterns have serious financial implications and that cities should consider investments in compact, accessible development.
Replication of semantic biasing on attention with mTurk participants
Creators: name: Zhang, Xiaoli
name: Shomstein, Sarah
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Cognitive Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Attention
subject: Semantic bias

description: It has been shown that semantic information, even when task-irrelevant, may bias attention during visual search. This result has been shown in multiple in-lab experiments. The current pre-registered project aims at replicating this result pattern with mTurk participants, before further research questions and experiments are built on top of this result.
Semiclassical electron transport at the edge of a 2D topological insulator: Interplay of protected and unprotected modes
Creators: name: Khalaf, E.
name: Skvortsov, M. A.
name: Ostrovsky, P. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study electron transport at the edge of a generic disordered two-dimensional topological insulator, where some channels are topologically protected from backscattering. Assuming the total number of channels is large, we consider the edge as a quasi-one-dimensional quantum wire and describe it in terms of a non-linear sigma model with a topological term. Neglecting localization effects, we calculate the average distribution function of transmission probabilities as a function of the sample length. We mainly focus on the two experimentally relevant cases: a junction between two quantum Hall (QH) states with different filling factors (unitary class) and a relatively thick quantum well exhibiting quantum spin Hall (QSH) effect (symplectic class). In a QH sample, the presence of topologically protected modes leads to a strong suppression of diffusion in the other channels already at the scales much shorter than the localization length. On the semiclassical level, this is accompanied by the formation of a gap in the spectrum of transmission probabilities close to unit transmission, thereby suppressing shot noise and conductance fluctuations. In the case of a QSH system, there is at most one topologically protected edge channel leading to weaker transport effects. In order to describe `topological' suppression of nearly perfect transparencies, we develop an exact mapping of the semiclassical limit of the one-dimensional sigma model onto a zero-dimensional sigma model of a different symmetry class, allowing us to identify the distribution of transmission probabilities with the average spectral density of a certain random-matrix ensemble. We extend our results to other symmetry classes with topologically protected edges in two dimensions.
description: 20 pages, 14 figures
Vehicular cycling advocacy: a case study of Chapel Hill
Creators: name: Michler, Robin Louis
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Since bicycles first became popular in the late 1800s there has been significant debate about the appropriate way to integrate them into the transportation system. During the 1970s cities found renewed interest in building and planning bicycle infrastructure. However, some cyclists felt these facilities diminished their rights and safety. These cyclists refer to themselves as vehicular cyclists and argue that bicycles should have the same rights and responsibilities as any other vehicle (i.e., motor vehicles) on the road. This paper seeks to understand the motivation of cycling advocates in a local context. Four local bicycling advocates from Chapel Hill and two national experts were interviewed to identify major themes in the controversy between advocates for vehicular cycling and advocates for bicycle separation. Two main issues emerged from these interviews: safety and social status. The solutions proposed by vehicular cyclists do not include separate bicycle facilities; however, the overlapping concerns suggests that middle ground that provides well constructed separate infrastructure that meets the needs of bicycles as vehicles would address many of both groups concerns.
title: Overview of vacuum-assisted breast biopsy
Creators: name: Roels, Pieter
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Vacuum assisted biopsy
subject: Ultrasound
subject: MR
subject: Conventional radiography
subject: Breast
subject: Cancer

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The aim/ focus of this poster is: To provide a short overview of the use of vacuum-assisted breast biopsy (VABB). To discuss the indications, contra-indications and potential risks of VABB. To review the procedure of stereotactic-, ultrasound and...
Global Holdout Survey Experiment (GH-SE) Pre-Analysis Plan
Creators: name: Zhang, Kelly
name: Messing, Solomon
name: Allen, Jennifer
name: Beasley, Andrew
name: Aggarwal, Minali
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences

description: This pre-analysis plan for an in-survey experiment builds on the Barometer Standard Operating Procedure and Pre-Analysis Plan.
Holographic renormalisation group flows and renormalisation from a Wilsonian perspective
Creators: name: Lizana, J. M.
name: Morris, T. R.
name: Perez-Victoria, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: From the Wilsonian point of view, renormalisable theories are understood as submanifolds in theory space emanating from a particular fixed point under renormalisation group evolution. We show how this picture precisely applies to their gravity duals. We investigate the Hamilton-Jacobi equation satisfied by the Wilson action and find the corresponding fixed points and their eigendeformations, which have a diagonal evolution close to the fixed points. The relevant eigendeformations are used to construct renormalised theories. We explore the relation of this formalism with holographic renormalisation. We also discuss different renormalisation schemes and show that the solutions to the gravity equations of motion can be used as renormalised couplings that parametrise the renormalised theories. This provides a transparent connection between holographic renormalisation group flows in the Wilsonian and non-Wilsonian approaches. The general results are illustrated by explicit calculations in an interacting scalar theory in AdS space.
description: 63 pages. Minor changes and references added. Matches JHEP version
1888-1889 - Vol 19
Creators: name: University, Oxford
Publisher: name: University of Oxford
Year: 2023

description: The PDF viewer for this record is not working at present; please download the file to read it. We apologise for this inconvenience and we are working to resolve the technical issue causing this problem as soon as possible. This is a consolidated archive of the Oxford University Gazette, the University's journal of record since 1870. Volumes which are more than 80 years old are available to all.
Low-income housing tax credit allocation in North Carolina: new construction versus historic adaptive reuse
Creators: name: Rosenberg, Karla
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: The North Carolina Housing Finance Agency (NCHFA), the entity responsible for allocating the LIHTC in our state, is interested in learning whether or not adaptive reuse is economically more productive than new construction. This paper will examine the fiscal costs and community impacts of LIHTC-funded historic adaptive reuse and new construction projects since 2003. Twelve adaptive reuse projects and twelve comparable new construction projects have been compared and contrasted, considering estimated building and operating costs per unit and the proportion of NCHFA funds invested in each project. Public loan data reported under the Home Mortgage Disclosure Act (HMDA) provide an overview of the community context and impact of LIHTC developments within the census tracts surrounding each project. A site visit to Mebane Mill in Alamance County, the most recently financed LIHTC project, and three professional interviews with a developer, a builder, and a city council member, provide additional perspective on the development process for adaptive reuse.
title: Breast Lesion Excision System-Intact (BLES): A Stereotactic Method of Biopsy of Suspicius Non-Palpable Mammographic Lesions.
Creators: name: Georgiou, Irene
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Diagnostic procedure
subject: Percutaneous
subject: Breast
subject: Neoplasia

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Image-guided percutaneous biopsy is the recommended diagnostic stereotactic procedure to excise suspicious non palpable mammographic lesions (BIRADS ≥4). Percutaneous biopsy has provided a simple, relatively inexpensive, and cosmetically agreeable...
Selected Design Guidelines for Urban Waterfront Redevelopment: A Study of the South Boston Waterfront
Creators: name: Auton, Melissa
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Cities throughout the United States are seeing redevelopment opportunities in their former industrial ports. The historic use of these urban waterfronts preserves large areas of land to be developed into a new neighborhoods, which, due to their high visibility, are capable of building new identities for their cities. Therefore it is important these waterfront communities develop into vibrant centers. Vibrant centers are created by attracting people to the community and thereby creating demand for different business establishments. In this paper I contend that the water’s edge creates a gathering place, which makes waterfronts inherent activity centers. The surrounding waterfront community can utilize the presence of people traveling through the neighborhood to the waterfront to increase activity levels and vibrancy. Therefore the focus of this study is on how to use urban design guidelines to create more interesting and comfortable public environments to encourage people to linger longer in the waterfront community, creating greater demand for businesses, recreation, and services. The format of the analysis is a case study of the South Boston Waterfront in Boston, Massachusetts.
MPEC 2023-O75 : 2023 OV1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 OV1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Wormholes and nonsingular space-times in Palatini $f(R)$ gravity
Creators: name: Bambi, Cosimo
name: Cardenas-Avendano, Alejandro
name: Olmo, Gonzalo J.
name: Rubiera-Garcia, D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We reconsider the problem of $f(R)$ theories of gravity coupled to Born-Infeld theory of electrodynamics formulated in a Palatini approach, where metric and connection are independent fields. By studying electrovacuum configurations in a static and spherically symmetric space-time, we find solutions which reduce to their Reissner-Nordström counterparts at large distances but undergo important non-perturbative modifications close to the center. Our new analysis reveals that the point-like singularity is replaced by a finite-size wormhole structure, which provides a geodesically complete and thus nonsingular space-time, despite the existence of curvature divergences at the wormhole throat. Implications of these results, in particular for the cosmic censorship conjecture, are discussed.
description: 8 pages, 2 figures
The Stigmatisation of Voluntarily Childfree Women and Men: Moderators and Mechanisms in a UK Community Sample
Creators: name: Ekelund, Malin
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences

description: This is a conceptual replication of the study "Parenthood as a Moral Imperative? Moral Outrage and the Stigmatization of Voluntarily Childfree Women and Men" (Ashburn-Nardo 2017).
The Universal Transverse Momentum Dependent Soft Function at NNLO
Creators: name: Echevarria, Miguel G.
name: Scimemi, Ignazio
name: Vladimirov, Alexey
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: All (un)polarized transverse momentum dependent functions (TMDs), both distribution and fragmentation functions, are defined with the same universal soft function, which cancels spurious rapidity divergences within an individual TMD and renders them well-defined hadronic quantities. Moreover, it is independent of the kinematics, whether it is Drell-Yan, deep inelastic scattering or $e^+e^-\rightarrow 2$ hadrons. In this paper we provide this soft function at next-to-next-to-leading order (NNLO), necessary for the calculation of all TMDs at the same order, and to perform the resummation of large logarithms at next-to-next-to-next-to-leading-logarithmic accuracy. From the results we obtain the $D$ function at NNLO, which governs the evolution of all TMDs. This work represents the first independent and direct calculation of this quantity. Given the all order relation through a Casimir scaling between the soft function relevant for gluon TMDs and the one for quark TMDs, we also obtain the first at NNLO. The used regularization method to deal with the rapidity divergences is discussed as well.
description: 12 pages, 2 figures. v2: minor rewording, accepted for publication in PRD
The impact of COVID-19 on families with children with Autism Spectrum Disorder
Creators: name: Dekker, Linda
name: Van der Hallen, Ruth
name: Truijens, Femke
name: Jansen, Pauline
name: van Rijen, E.H.M.
name: Dieleman, G.C.
name: Visser, Kirsten
name: Ester, W.A.
name: Hoopen, L.W.
name: De Nijs, P.F.A.
name: Louwerse, A.
name: Bastiaansen, D.
name: Hooijman, Linde
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Psychiatry and Psychology
subject: Health Psychology
subject: Diseases
subject: Medicine and Health Sciences
subject: Developmental Psychology
subject: Quantitative Psychology
subject: Virus Diseases
subject: Child Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: adolescents
subject: autism
subject: child functioning
subject: COVID-19
subject: family functioning
subject: impact
subject: parents
subject: stressful life events

description: The COVID-19 pandemic presents each of us with a challenge, but it can be particularly demanding for children and adolescents with ASD. ASD is a developmental disorder, which is characterized by limitations in social communication, as well as repetitive behavioral patterns, limited interests and activities. Current circumstances rely heavily on the capacities in which many children and adolescents with ASD already experience problems, specifically in terms of social contact and coping with change. Due to COVID-19 we expect that many children and adolescents with ASD, given the diagnostic characteristics and frequent comorbid problems, will experience more stress, anxiety, depression, loneliness, and a deterioration in functioning. We also anticipate that they will have difficulty with the constantly changing information surrounding the virus. Further, we expect that parents of children with ASD, who must take on extra care responsibilities and differing roles in addition to their own worries, stress, and work obligations during COVID-19, will experience more psychological and emotional problems. On the other hand, it is also possible that some families will experience more freedom now that there are fewer expectations and the pressure from society is decreasing. In any case, the combination of circumstances makes that both the child with ASD and the family are faced with challenges that affect their functioning and quality of life. Since children with ASD and their families often have limited resilience, there is a good chance that the impact of COVID-19 will also have far-reaching long-term consequences.
ETHICAL HACKERS: WHO THEY ARE AND WHY COMPANIES REWARD THEM
Creators: name: Baxromov, Komiljon
Publisher: name: Zenodo
Year: 2025

description: In today's digital world, cybersecurity has become one of the most important issues. Despite firewalls, antiviruses and complex passwords, cybercriminals continue to find vulnerabilities. At this point, boot hackers  that is, "well-intentioned" hackers  come into the field.
A Closer Look: A Spatial Analysis of African American Mortgage Applications and Denials in North Carolina
Creators: name: Bullock, Daniel
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: There is a significant and persistent gap in homeownership rate and household wealth between Black and White households in the US. These gaps are based on a long history of exclusion, with discrimination in mortgage lending playing a major role alongside residential segregation, educational and labor force discrimination and many other factors. Research indicates a need for increased homeownership to address both issues, and allow more Black households to take advantage of the incentives and advantages of homeownership built into US housing policy and tax laws. However, little thought is given to the specific types of lending that are needed, especially as determined by differences between urban and rural communities. A deeper look at mortgage loan applications made in NC in 2015, shows major differences between urban and rural areas of high denials of Black loan applicants. In urban areas this investigation indicates a need for greater home improvement lending and refinancing among lower-income urban Black homeowners, as well as more affordable homeownership opportunities. In rural areas there is a need for more choice in the financing of manufactured housing as part of more comprehensive efforts to address a host of economic and social issues.
title: IMAGING VARIABLITIES IN NON-CALCIFIED DCIS - Case Series and Our Experience in a Teaching Hospital
Creators: name: Babu, Gauri
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Neoplasia
subject: Biopsy
subject: Ultrasound
subject: Breast

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To review the imaging variablities in non-calcified DCIS and its various mammographic and ultrasonic presentations. Also we looked at the need for biopsy proven diagnosis. This is the summary of experience in a specialised oncology centre in a large...
1886-1887 - Vol 17
Creators: name: University, Oxford
Publisher: name: University of Oxford
Year: 2023

description: The PDF viewer for this record is not working at present; please download the file to read it. We apologise for this inconvenience and we are working to resolve the technical issue causing this problem as soon as possible. This is a consolidated archive of the Oxford University Gazette, the University's journal of record since 1870. Volumes which are more than 80 years old are available to all.