cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Perfect State Transfer on gcd-graphs
Creators: name: Pal, Hiranmoy
name: Bhattacharjya, Bikash
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Let $G$ be a graph with adjacency matrix $A$. The transition matrix of $G$ is denoted by $H(t)$ and it is defined by $H(t):=\exp{\left(itA\right)},\;t\in\mathbb{R}.$ The graph $G$ has perfect state transfer (PST) from a vertex $u$ to another vertex $v$ if there exist $τ\left(\neq0\right)\in\mathbb{R}$ such that the $uv$-th entry of $H(τ)$ has unit modulus. In case when $u=v$, we say that $G$ is periodic at the vertex $u$ at time $τ$. The graph $G$ is said to be periodic if it is periodic at all vertices at the same time. A gcd-graph is a Cayley graph over a finite abelian group defined by greatest common divisors. We establish a sufficient condition for a gcd-graph to have periodicity and PST at $\fracπ{2}$. Using this we deduce that there exists gcd-graph having PST over an abelian group of order divisible by $4$. Also we find a necessary and sufficient condition for a class of gcd-graphs to be periodic at $π$. Using this we characterize a class of gcd-graphs not exhibiting PST at $\fracπ{2^{k}}$ for all positive integers $k$.
Large Block Properties of the Entanglement Entropy of Disordered Fermions
Creators: name: Elgart, A.
name: Pastur, L.
name: Shcherbina, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider a macroscopic disordered system of free $d$-dimensional lattice fermions whose one-body Hamiltonian is a Schrödinger operator $H$ with ergodic potential. We assume that the Fermi energy lies in the exponentially localized part of the spectrum of $H$. We prove that if $S_Λ$ is the entanglement entropy of a lattice cube $Λ$ of side length $L$ of the system, then for any $d \ge 1$ the expectation $\mathbf{ E}\{L^{-(d-1)}S_Λ\}$ has a finite limit as $L \to \infty$ and we identify the limit. Next, we prove that for $d=1$ the entanglement entropy admits a well defined asymptotic form for all typical realizations (with probability 1) as $ L \to \infty$. According to numerical results of [33] the limit is not selfaveraging even for an i.i.d. potential. On the other hand, we show that for $d \ge 2$ and an i.i.d. random potential the variance of $L^{-(d-1)}S_Λ$ decays polynomially as $L \to \infty$, i.e., the entanglement entropy is selfaveraging.
description: Some explanations are added and typos are corrected
Similarity and singularity in adhesive elastohydrodynamic touchdown
Creators: name: Carlson, Andreas
name: Mahadevan, L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We consider the touchdown of an elastic sheet as it adheres to a wall, which has a dynamics that is limited by the viscous resistance provided by the squeeze flow of the intervening liquid trapped between the two solid surfaces. The dynamics of the sheet is described mathematically by elastohydrodynamic lubrication theory, coupling the elastic deformation of the sheet, the microscopic van der Waals adhesion and the viscous thin film flow. We use a combination of numerical simulations of the governing partial differential equation and a scaling analysis to describe the self-similar solution of the touchdown of the sheet as it approaches the wall. An analysis of the equation satisfied by the similarity variables in the vicinity of the touchdown event shows that an entire sequence of solutions are allowed. However, a comparison of these shows that only the fundamental similarity solution is observed in the time-dependent numerical simulations, consistent with the fact that it alone is stable. Our analysis generalizes similar approaches for rupture in capillary thin film hydrodynamics and suggests experimentally verifiable predictions for a new class of singular flows linking elasticity, hydrodynamics and adhesion.
The Minnesota Poll # 388
Creators: name: Minneapolis Star Tribune
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: State problems and affairs (11); state taxes/incentives (6); education in Minnesota (5); national economy (3); federal income tax law (3); job performance of various politicians (3); Iran-Contra affair (3); personal financial situation (14); job satisfaction (16); AIDS (4).
Reimagining Near-Earth Space Policy in a Post-COVID World
Creators: name: Barentine, John C.
name: Heim, Jessica
name: Venkatesan, Aparna
name: Lowenthal, James
name: Vidaurri, Monica
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Our planet and our species are at an existential crossroads. In the long term, climate change threatens to upend life as we know it, while the ongoing COVID-19 pandemic revealed that the world is unprepared and ill-equipped to handle acute shocks to its many systems. These shocks exacerbate the inequities and challenges already present prior to COVID in ways that are still evolving in unpredictable directions. As weary nations look toward a post-COVID world, we draw attention to both the injustice and many impacts of the quiet occupation of near-Earth space, which has rapidly escalated during this time of global crisis. The communities most impacted by climate change, the ongoing pandemic, and systemic racism are those whose voices are missing as stakeholders both on the ground and in space. We argue that significant domestic and international changes to the use of near-Earth space are urgently needed to preserve access to - and the future utility of - the valuable natural resources of space and our shared skies. After examining the failure of the U.S. and international space policy status quo to address these issues, we make specific recommendations in support of safer and more equitable uses of near-Earth space.
description: 18 pages; published in Virginia Policy Review, Vol. XV, Issue 1 (Spring 2022), pp. 58-86
Intersite electron correlations in a Hubbard model on inhomogeneous lattices
Creators: name: Takemori, Nayuta
name: Koga, Akihisa
name: Hafermann, Hartmut
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study intersite electron correlations in the half-filled Hubbard model on square lattices with periodic and open boundary conditions by means of a real-space dual fermion approach. By calculating renormalization factors, we clarify that nearest-neighbor intersite correlations already significantly reduce the critical interaction. The Mott transition occurs at U/t~6.4, where $U$ is the interaction strength and t is the hopping integral. This value is consistent with the quantum Monte Carlo results. This shows the importance of short-range intersite correlations, which are taken into account in the framework of the real-space dual fermion approach.
The effect of cultural background on the use of Complementary and Alternative Medicine for Chronic Pain Management
Creators: name: Jones, Lisa
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2005

description: Introduction: Chronic pain is a debilitating problem affecting more than 75 million Americans. Management of chronic pain includes pharmacologic methods, non-pharmacologic methods and complementary and alternative medicine (CAM). Complementary and alternative medicine is defined by the National Center for Complementary and Alternative Medicine (NCCAM), as a group of diverse medical and health care systems, practices, and products that are not considered to be part of conventional medicine. Recent studies have indicated that ethnic groups use different CAM modalities to manage a variety of medical conditions. For instance, black patients are known to use spiritual healing (prayer) as a form of CAM to manage medical conditions. Objective: To describe the characteristics of the population that uses CAM for chronic pain and to determine whether there is a difference in the use of CAM for chronic pain between blacks and whites. Methods: A cross-sectional survey examining the use of CAM among chronic pain patients at the Duke University Medical Center's Pain and Palliative Care Clinic. The Institutional Review Board at the Duke University School of Medicine approved this study and signed informed patient consent was obtained. Results: A total of 50 surveys were collected. Ninety percent of chronic pain patients report using CAM for pain control. Blacks and whites were equally likely to use CAM for pain control. Mean pain scores at rest (0-10 scale) were significantly higher for blacks than whites. There was a small difference in the use of prayer for pain control between blacks and whites that did not reach statistical significance. Conclusion: There is a high prevalence of CAM use among both blacks and white attendees at a university chronic pain clinic. The use of prayer for pain control is similar for both groups though this maybe due to the importance of religion among these groups in the South. Larger studies sampling patients across different geographic regions are needed to draw further conclusions.
Next-Generation Morphometry for pathomics-data mining in histopathology
Creators: name: Boor, Peter
name: Hölscher, David L.
name: Bouteldja, Nassim
name: Joodaki, Mehdi
name: Russo, Maria
name: Lan, Yu-Chia
name: Sadr, Alireza
name: Cheng, Mingbo
name: Tesar, Vladimir
name: von Stillfried, Saskia
name: Klinkhammer, Barbara Mara
name: Barratt, Jonathan
name: Flöge, Jürgen
name: Roberts, Ian
name: Coppo, Rosanna
name: Costa, Ivan G.
name: Bülow, Roman D.
Publisher: name: RWTH Aachen University
Year: 2022

description: 1-49 (2022). doi:10.21203/rs.3.rs-1609168/v1
PSRA/Newsweek Poll # 2000-05: K-8 Parents
Creators: name: Newsweek
Publisher: name: Roper Center for Public Opinion Research
Year: 2000

description: Type of school respondent's child is attending (1); father/mother live in household (2); computer ownership (1); Internet (7); home computer use (60; child's computer use (1); child's e-mail (3); monitor child's Internet use (2); computer for child at school (1); Internet access at school (2); child's computer use at school (4); amount of homework child has (1).
OPTIMIZING B2B SALES PERFORMANCE USING PREDICTIVE ANALYTICS IN THE TEXTILE INDUSTRY
Creators: name: Dr. V. Satishkumar*, R. Kaamesh** & M. Keerthi Gnanam**
Publisher: name: Zenodo
Year: 2025

description: This study explores the role of predictive analytics in optimizing B2B sales performance in the textile industry, focusing on Bavana Textiles, a leading manufacturer in Coimbatore, India. By leveraging historical sales data and advanced forecasting techniques, this research enhances sales predictions, improves inventory management, and maximizes profitability. Using polynomial regression models with seasonal adjustments, the study identifies clear demand patterns and offers actionable insights for strategic decision-making. The findings highlight the importance of data-driven strategies, including targeted marketing, just-in-time inventory management, and customer retention programs, to address market fluctuations and drive sustainable growth.
VNS 1998 Election: Minnesota Election Day Exit Poll
Creators: name: ABC News
name: Associated Press
name: CBS News
name: CNN
name: Fox News
name: NBC News
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: 1998 Gubernatorial election (2); most important issue in Gubernatorial election (1); carry a concealed weapon (1); taxes pay for professional sports stadium (1); Clinton job performance (2); economy (1); Congressional job performance (1); 1996 presidential election (1); personal financial situation (1); support/oppose Clinton (1); Clinton impeachment (3).
LAPOP Poll: The Mexico 2016 AmericasBarometer Round
Creators: name: LAPOP-Vanderbilt
Publisher: name: Roper Center for Public Opinion Research
Year: 2018

description: Life satisfaction (1); problems faced by country (1); economic situation (2); attendance at various meetings (6); community members (1); protest participation (1); military coup (2); governing without Congress (1); crime victim (2); fear of crime (2); extortion (1); neighborhood safety (1); judicial system (2); political system and institutions (3); protection of basic human rights (2); Mexican pride (1); trust in institutions (7); elections (1); building house without permit (1); bribes (10); Presidente Enrique Peña Nieto job performance (1); Congress job performance (1); public services (3); police (1); hospital transport time (1); state ownership of industries (1); reducing income inequality (1); democracy (2); government interest in citizens (1); political interest and understanding (1); penalties for crimes (1); news media (2); building codes (1); natural disasters (1); environment vs. economy (1); climate change (1); abortion (1); legal demonstrations (1); rights of government critics (4); rights of homosexuals (2); freedom of the press (1); freedom of expression (2); political corruption (1); murder (5); death penalty (1); voting (8); political interest and understanding (1); best country model for future development (1); trustworthiness of various governments and institutions (4); construction and land use regulations (4); feelings toward United States (3); government assistance (2); hunger (4); lack of medical care access (1); immunizations (1); head of household's taxes, insurance, and workplace (6); indigenous identification (3); internet usage (4).
Siena College Research Institute Poll: November 2017 Siena New York Poll
Creators: name: Siena College Research Institute
Publisher: name: Roper Center for Public Opinion Research
Year: 2018

description: Direction of New York State (1); opinion of people and institutions in public life (4); re-elect Senator Kirsten Gillibrand (1); re-elect Governor Andrew Cuomo (1); Cuomo job performance (1); interest in politics (2); 2017 General Election (1); New York State Constitutional Convention (4); revision of Adirondack Mountains conservation policy (1); government office term limits (2); voting directly on proposed laws (1); Limited Liability Corporation (LLC) loophole (1); support/oppose outside employment for state legislators (1); collective bargaining rights (1); marijuana (1); amendments to New York State Constitution (2); State of New York's economy (1).
Photonic band structure and effective medium properties of doubly-resonant core-shell metallo-dielectric nanowire arrays: low-loss, isotropic optical negative-index behavior
Creators: name: Abujetas, D. R.
name: Paniagua-Domínguez, R.
name: Nieto-Vesperinas, M.
name: Sánchez-Gil, J. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate theoretically and numerically the photonic band structure in the optical domain of an array of core-shell metal-semiconductor nanowires. Corresponding negative-index photonic bands are calculated, showing isotropic equifrequency surfaces. The effective (negative) electric permittivity and magnetic permeability, retrieved from S parameters, are used to compare the performance of such nanowire arrays with homogeneous media in canonical examples, such as refraction through a prism and flat-lens focusing. Very good agreement is found, indeed confirming the effective medium behavior of the nanowire array as a low-loss, isotropic (2D) and bulk, optical negative index metamaterial. Indeed, disorder is introduced to further stress its robustness
description: 11 pages, 13 figures
Understanding shark-related cognitive vulnerability and its role in shark diving: implications for conservation
Creators: name: Yan, Xiaodi
name: Lapinski, Maria Knight
name: Gore, Meredith
name: Neuberger, Lindsay
name: Grayson-Sneed, Kate
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Neuroscience
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Negative perceptions and vulnerable feelings about sharks have been one of the greatest barriers to effective shark conservation efforts. This study used a self-report survey of young adults in a coastal state (N = 616) to examine how shark-related risk perceptions (severity and susceptibility) and sensation-seeking tendency influence cognitive vulnerability to sharks and its affective, cognitive, and behavioral outcomes. Results of a path analysis showed that perceived susceptibility was positively associated with cognitive vulnerability to sharks, which in turn was negatively related to behavioral intention to shark dive. Perceived severity was associated with higher levels of fear, less favorable attitudes toward shark diving, and had a negative indirect effect on behavioral intention through attitude. Sensation-seeking had both a direct and an indirect effect through attitude on behavioral intention to shark diving. Theoretical and practical implications of findings in human-wildlife interactions are described.
Engineering two-dimensional electron gases at the (001) and (101) surfaces of TiO2 anatase using light
Creators: name: Rödel, T. C.
name: Fortuna, F.
name: Bertran, F.
name: Gabay, M.
name: Rozenberg, M. J.
name: Santander-Syro, A. F.
name: Fèvre, P. Le
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the existence of metallic two-dimensional electron gases (2DEGs) at the (001) and (101) surfaces of bulk-insulating TiO2 anatase due to local chemical doping by oxygen vacancies in the near-surface region. Using angle-resolved photoemission spectroscopy, we find that the electronic structure at both surfaces is composed of two occupied subbands of d_xy orbital character. While the Fermi surface observed at the (001) termination is isotropic, the 2DEG at the (101) termination is anisotropic and shows a charge carrier density three times larger than at the (001) surface. Moreover, we demonstrate that intense UV synchrotron radiation can alter the electronic structure and stoichiometry of the surface up to the complete disappearance of the 2DEG. These results open a route for the nano-engineering of confined electronic states, the control of their metallic or insulating nature, and the tailoring of their microscopic symmetry, using UV illumination at different surfaces of anatase.
description: Article + Supplemental Material. See also the Synopsis @ Physics: http://physics.aps.org/synopsis-for/10.1103/PhysRevB.92.041106
Super-Strong Magnetic Fields of Neutron Stars in Be X-Ray Binaries Estimated with New Torque and Magnetosphere Models
Creators: name: Shi, Chang-Sheng
name: Zhang, Shuang-Nan
name: Li, Xiang-Dong
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We re-estimate the surface magnetic fields of neutron stars (NSs) in Be X-ray binaries (BeXBs) with different models of torque, improved beyond Klus et al. (2014). In particular, a new torque model (Dai \& Li 2006) is applied to three models of magnetosphere radius. Unlike the previous models, the new torque model does not lead to divergent results for any fastness parameter. The inferred surface magnetic fields of these NSs for the two compressed magnetosphere models are much higher than that for the uncompressed magnetosphere model. The new torque model using the compressed-magnetosphere radius (Shi, Zhang \& Li 2014) leads to unique solutions near spin equilibrium in all cases, unlike other models that usually give two branches of solutions. Although our conclusions are still affected by the simplistic assumptions about the magnetosphere radius calculations, we show several groups of possible surface magnetic field values with our new models when the interaction between the magnetosphere and the infalling accretion plasma is considered. The estimated surface magnetic fields for NSs BeXBs in the Large Magellanic Cloud, the Small Magellanic Cloud and the Milk Way are between the quantum critical field and the maximum "virial" value by the spin equilibrium condition.
description: 24 pages, 7 figures. Accepted for publication on ApJ. Revised to match the corrected proof
Are Cluster Validity Measures (In)valid?
Creators: name: Gagolewski, Marek
name: Bartoszuk, Maciej
name: Cena, Anna
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Internal cluster validity measures (such as the Calinski-Harabasz, Dunn, or Davies-Bouldin indices) are frequently used for selecting the appropriate number of partitions a dataset should be split into. In this paper we consider what happens if we treat such indices as objective functions in unsupervised learning activities. Is the optimal grouping with regards to, say, the Silhouette index really meaningful? It turns out that many cluster (in)validity indices promote clusterings that match expert knowledge quite poorly. We also introduce a new, well-performing variant of the Dunn index that is built upon OWA operators and the near-neighbour graph so that subspaces of higher density, regardless of their shapes, can be separated from each other better.
Charge-pseudospin coupled diffusion in semi-Dirac graphene: pseudospin assisted valley transport
Creators: name: Rostamzadeh, Saber
name: Sarisaman, Mustafa
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Modifying the hexagonal lattices of graphene enables the repositioning and merging of the Dirac cones which proves to be a key element in the use of these materials for alternative electronic applications such as valleytronics. Here we study the nonequilibrium transport of carriers within a system containing two Dirac cones in both standard graphene and semi-Dirac graphene. In the latter, the lattice modifications cause the relativistic and parabolic dispersion bands to coexist, furnishing the Fermi surface with a rich pseudospin texture and a versatile Dirac cones separation. We construct a kinetic theory to investigate the carrier diffusion and uncover that the pseudospin index contributes to the particle current and, like the real spin, can induce a magnetoelectric effect, and argue that the pseudospin-charge coupling can be utilized to design a pseudospin filter. We explore the charge dynamics inside a quasi-one-dimensional conductor using the drift-diffusion model and detect the pseudospin accumulation at the sample boundaries. We find that, while, for graphene, the accumulation contributes to an extra voltage drop between the sample interfaces, the semi-Dirac system presents a similar accumulation that is strikingly equipped with valley polarization, signifying an essential tool for the control of valley manipulation and chirality transport using the pseudospin.
description: 14 pages, 7 figures, 1 table, to appear in New Journal of Physics
Data Fusion: Theory, Methods, and Applications
Creators: name: Gagolewski, Marek
Publisher: name: arXiv
Year: 2022
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: A proper fusion of complex data is of interest to many researchers in diverse fields, including computational statistics, computational geometry, bioinformatics, machine learning, pattern recognition, quality management, engineering, statistics, finance, economics, etc. It plays a crucial role in: synthetic description of data processes or whole domains, creation of rule bases for approximate reasoning tasks, reaching consensus and selection of the optimal strategy in decision support systems, imputation of missing values, data deduplication and consolidation, record linkage across heterogeneous databases, and clustering. This open-access research monograph integrates the spread-out results from different domains using the methodology of the well-established classical aggregation framework, introduces researchers and practitioners to Aggregation 2.0, as well as points out the challenges and interesting directions for further research.
description: open-access research monograph (published in 2015)
Gallup/CNN/USA Today Poll: 2004 Presidential Election
Creators: name: CNN
name: USA Today
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: How much thought given to upcoming election for president (1); do/do not know where people in neighborhood go to vote (1); ever voted in precinct/election district (1); how often vote (1); plans to vote in presidential election this November (2); John Kerry and John Edwards vs. George W. Bush and Dick Cheney vs. Ralph Nader and Peter Camejo (2); most important issue in vote for president (1); 2000 presidential election (1).
MPEC 2023-T49 : 2023 TD1
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 TD1

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.
Gallup/CNN/USA Today Poll: 2004 Presidential Election
Creators: name: CNN
name: USA Today
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: How much thought given to upcoming election for president (1); do/do not know where people in neighborhood go to vote (1); ever voted in precinct/election district (1); how often vote (1); plans to vote in presidential election this November (2); absentee/early voting (4); John Kerry and John Edwards vs. George W. Bush and Dick Cheney vs. Ralph Nader and Peter Camejo (2); Betty Castor vs. Mel Martinez (2); most important issue in vote for president (1); confidence that votes for president will be accurately cast and counted in Florida (1); 2000 presidential election (1).
title: Developments in the Global Energy Markets and Constructing the Future of the Persian Gulf Security
Creators: name: Cengul, Nihat
Publisher: name: Old Dominion University Libraries
Year: 2012

description: This study analyses the global energy projections and regional dynamics in the Persian Gulf. It is shown that the future projections in the world energy markets signify the importance of cooperation between developed and developing countries. It is also suggested that connected to the global economic crises and the regional demand change in the energy market, there is a growing need for international support to the Persian Gulf security.

I argue that the Gulf Cooperation Council (GCC) could play a crucial role for eliminating political conflicts and maintaining the regional stability. As a result, collective arm transfer to the region, followed by growing training and interoperability within the armed forces, could assure protection and security in the Persian Gulf under the lead of the US.
Dimensional hierarchy of fermionic interacting topological phases
Creators: name: Queiroz, Raquel
name: Khalaf, Eslam
name: Stern, Ady
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present a dimensional reduction argument to derive the classification reduction of fermionic symmetry protected topological phases in the presence of interactions. The dimensional reduction proceeds by relating the topological character of a $d$-dimensional system to the number of zero-energy bound states localized at zero-dimensional topological defects present at its surface. This correspondence leads to a general condition for symmetry preserving interactions that render the system topologically trivial, and allows us to explicitly write a quartic interaction to this end. Our reduction shows that all phases with topological invariant smaller than $n$ are topologically distinct, thereby reducing the non-interacting $\mathbb{Z}$ classification to $\mathbb{Z}_n$.
description: 4 pages, 2 figures
The effects of local stellar radiation and dust depletion on non-equilibrium interstellar chemistry
Creators: name: Richings, Alexander J.
name: Faucher-Giguere, Claude-Andre
name: Gurvich, Alexander B.
name: Schaye, Joop
name: Hayward, Christopher C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Interstellar chemistry is important for galaxy formation, as it determines the rate at which gas can cool, and enables us to make predictions for observable spectroscopic lines from ions and molecules. We explore two central aspects of modelling the chemistry of the interstellar medium (ISM): (1) the effects of local stellar radiation, which ionises and heats the gas, and (2) the depletion of metals onto dust grains, which reduces the abundance of metals in the gas phase. We run high-resolution (400 M$_\odot$ per baryonic particle) simulations of isolated disc galaxies, from dwarfs to Milky Way-mass, using the FIRE galaxy formation models together with the CHIMES non-equilibrium chemistry and cooling module. In our fiducial model, we couple the chemistry to the stellar fluxes calculated from star particles using an approximate radiative transfer scheme, and we implement an empirical density-dependent prescription for metal depletion. For comparison, we also run simulations with a spatially uniform radiation field, and without metal depletion. Our fiducial model broadly reproduces observed trends in HI and H2 mass with stellar mass, and in line luminosity versus star formation rate for [CII] 158$μ$m, [OI] 63$μ$m, [OIII] 88$μ$m, [NII] 122$μ$m and H$α$ 6563A. Our simulations with a uniform radiation field predict fainter luminosities, by up to an order of magnitude for [OIII] 88$μ$m and H$α$ 6563A, while ignoring metal depletion increases the luminosity of carbon and oxygen lines by a factor $\approx$2. However, the overall evolution of the galaxy is not strongly affected by local stellar fluxes or metal depletion, except in dwarf galaxies where the inclusion of local fluxes leads to weaker outflows and hence higher gas fractions.
description: 29 pages, 24 figures (including appendices). Accepted for publication in MNRAS. Minor changes relative to v1
CBS News Poll: Wyoming Election Day Survey
Creators: name: CBS News
Publisher: name: Roper Center for Public Opinion Research
Year: 2013

description: Voted for Rodger McDaniel/Malcolm Wallop for senator (1); most important issue in vote for senator (2); Reagan economic program (2); voted for Ed Herschler/Warren Morton for governor (1); most important issue in vote for governor (1); President Reagan/Governor Herschler more to blame for economic problems in Wyoming (1); Ronald Reagan job performance (1); unemployment in respondent's household (1); 1980 presidential election (1); personal finances (1).
Characterizing the 3D Kinematics of Young Stars in the Radcliffe Wave
Creators: name: Tu, Alan J.
name: Zucker, Catherine
name: Speagle, Joshua S.
name: Beane, Angus
name: Goodman, Alyssa
name: Alves, João
name: Faherty, Jacqueline
name: Burkert, Andreas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an analysis of the kinematics of the Radcliffe Wave, a 2.7-kpc-long sinusoidal band of molecular clouds in the solar neighborhood recently detected via 3D dust mapping. With Gaia DR2 astrometry and spectroscopy, we analyze the 3D space velocities of $\sim 1500$ young stars along the Radcliffe Wave in action-angle space, using the motion of the wave's newly born stars as a proxy for its gas motion. We find that the vertical angle of young stars -- corresponding to their orbital phase perpendicular to the Galactic plane -- varies significantly as a function of position along the structure, in a pattern potentially consistent with a wave-like oscillation. This kind of oscillation is not seen in a control sample of older stars from Gaia occupying the same volume, disfavouring formation channels caused by long-lived physical processes. We use a ``wavy midplane'' model to try to account for the trend in vertical angles seen in young stars, and find that while the best-fit parameters for the wave's spatial period and amplitude are qualitatively consistent with the existing morphology defined by 3D dust, there is no evidence for additional velocity structure. These results support more recent and/or transitory processes in the formation of the Radcliffe Wave, which would primarily affect the motion of the wave's gaseous material. Comparisons of our results with new and upcoming simulations, in conjunction with new stellar radial velocity measurements in Gaia DR3, should allow us to further discriminate between various competing hypotheses.
description: Accepted for publication in ApJ
CBS News/New York Times Poll: Omnibus-March, 1976
Creators: name: CBS News
name: New York Times
Publisher: name: Roper Center for Public Opinion Research
Year: 2013

description: Agree/disagree with certain statements (7); government spending (2); economy (2); opinion of possible presidential candidates (9); where candidates stand on balancing budget (7); where candidates stand on U.S./Russian relations (7); where candidates stand on government attention to problems of minorities (7); candidates' ideologies (7); characteristics of possible candidates (21); Gerald Ford vs. other candidates (6); which candidate does respondent prefer most for Democratic nomination for president (2); Ronald Reagan vs. Gerald Ford (1); George Wallace's health (1); chance Ronald Reagan would have against the Democrats if he were Republican nominee (1); most important issues in choosing presidential candidate (5); 1972 presidential election (1).
CBS News/New York Times Poll: Post Election Survey (all voters)
Creators: name: CBS News
name: New York Times
Publisher: name: Roper Center for Public Opinion Research
Year: 2013

description: Gerald Ford vs. Jimmy Carter (14); when decided who to vote for (1); agree/disagree with certain statements (12); Gerald Ford job performance (2); vote for president in November (1); U.S. policy of trying to relax tensions with Russia called "detente" (1); interest in presidential election this fall (2); difference in Republican and Democratic parties (1); trust in government (1); Republican/Democrat for president (1); names of two men running for vice president (1); Secretary of State Henry Kissinger job performance (1); unemployment/inflation is most important problem facing country (1); positions of candidates on major issues/personal qualities and character (1); Jimmy Carter talks in public about his strong religious beliefs (1); president/Congress more to blame for the way the government operates in Washington (1); taxes (1); government spending (4); economy (1); importance of voting (1); Gerald Ford ideology (1); Jimmy Carter ideology (1); government is pretty much run for a few big interests/for the benefit of all the people (1); most people who receive money from welfare could get along without it if they tried/really need it (1); personal finances (1); Watergate (1); presidential debates (6); Robert Dole vs. Walter Mondale (1); voted for Richard Nixon/George McGovern in 1972 presidential election (1); family background (1); vote in last four presidential elections (4); voted for Gerald Ford/Jimmy Carter (1); why did respondent decide on candidate (1); reason for voting (2); voted for Gerald Ford/Jimmy Carter if respondent had voted (1); why respondent didn't vote this year (2); direction of country (1); presidential vote changed if respondent knew election came out (1); presidential and vice-presidential debates (1); Jimmy Carter thinks unemployment/inflation is most important problem facing the country (1); ever given money to a candidate or party (1); heard any election returns Tuesday night (1); read a newspaper (1); ever written to a Congressman or newspaper about a political matter (1); would rather have a smaller government providing less services/a bigger government providing more services (1); when decided to vote (1); voting should be easy/hard for people to do (1); respondent watches news on television (1); television and the campaign (1); ever worked in a political campaign (1); most important problems facing this country (2); primary election campaign last spring (1); support newly-elected president (1); Gerald Ford thinks unemployment/inflation is most important problem facing the country (1); satisfied/dissatisfied with the way newspapers have described the campaign (1); ever attended a political rally (1); voted if had been registered last Tuesday (1); main reason respondent didn't register to vote this year (2).
Search for differences between radio-loud and radio-quiet gamma-ray pulsar populations with Fermi-LAT data
Creators: name: Sokolova, E. V.
name: Rubtsov, G. I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Observations by Fermi LAT enabled us to explore the population of non-recycled gamma-ray pulsars with the set of 89 objects. It was recently noted that there are apparent differences in properties of radio-quiet and radio-loud subsets. In particular, average observed radio-loud pulsar is younger than radio-quiet one and is located at smaller galactic latitude. Even so, the analysis based on the full list of pulsars may suffer from selection effects. Namely, most of radio-loud pulsars are first discovered in the radio-band, while radio-quiet ones are found using the gamma-ray data. In this work we perform a blind search for gamma-ray pulsars using the Fermi LAT data alone using all point sources from 3FGL catalog as the candidates. Unlike preceding blind search, the present catalog is constructed with novel semi-coherent method and covers the full range of characteristic ages down to 1 kyr. The search resulted in the catalog of 40 non-recycled pulsars, 26 of which are radio-quiet. There are no statistically significant differences in age and galactic latitude distributions for the radio-loud and radio-quiet pulsars, while the rotation period distributions are marginally different with $2.4σ$ pre-trial statistical significance. The fraction of radio-quiet pulsars is estimated as $ε_{RQ}=63\pm 8\%$. The results are in agreement with the predictions of the outer magnitosphere models, while the Polar cap models are disfavored.
description: 6 pages, 7 figures
Optical spectroscopy of the extremely metal-deficient star-forming galaxy HSC J1631+4426: a test of the strong-line method
Creators: name: Thuan, T. X.
name: Guseva, N. G.
name: Izotov, Y. I.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recently, Kojima and co-authors have reported a record low oxygen abundance, 12+logO/H=6.90+/-0.03 in the low-mass star-forming galaxy HSC J1631+4426. This exceptionally low oxygen abundance was obtained by the direct method, using the [OIII]4363 emission line. However, using the strong-line method by Izotov et al. (2019b), these authors have derived a significantly higher metallicity 12+logO/H=7.175+/-0.005. To clarify the situation, we have obtained new observations of HSC J1631+4426 with the Large Binocular Telescope (LBT)/Multi-Object Dual Spectrograph (MODS). We have derived a higher oxygen abundance, 12+logO/H=7.14+/-0.03, using the direct method, a value similar to the oxygen abundance obtained by the strong-line method. Thus, HSC J1631+4426 has a metallicity close to that of the well known blue compact dwarf galaxy IZw18.
description: 6 pages, 3 figures, accepted for publication in MNRAS Letters
A Landau-type quantization from a Lorentz symmetry violation background with crossed electric and magnetic fields
Creators: name: Bakke, K.
name: Belich, H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the arising of an analogue of the Landau quantization from a background of the violation of the Lorentz symmetry established by a time-like 4-vector and a field configuration of crossed electric and magnetic field. We also analyse the effects on this Landau-type system subject to a hard-wall confining potential by showing a particular case where a discrete spectrum of energy can be obtained. Further, we analyse the effects of a linear confining potential on the Landau-type system. We show that a quantum effect characterized by the dependence of the cyclotron frequency on the quantum numbers of the system can arise in this analogue of the Landau system. As an example, we calculate the cyclotron frequency associated with ground state of the system.
description: To be published in J. Phys. G: Nucl. Part. Phys. arXiv admin note: text overlap with arXiv:1412.5078
Los Angeles Times Poll # 1999-427: LA County Small Businesses
Creators: name: Los Angeles Times
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: Direction of California (11); business conditions (4); business growth (1); salaries and wages (1); cost of supplies (1); problems in respondents businesses (23); consider relocating business (4); business financing (2); export goods (3); import goods (2); ethnicity and business (1); web site (1); opportunities facing respondents business (3); born origin (2); most important problems in business (3); number of years as business owner (1); ethnicity of owner/president of country (1); business ownership (6); number of employees (2); employment (5); ethnicity of clients/customers (2); location of customer base (2); employer provided health insurance (7).
Local imaging of diamagnetism in proximity coupled niobium nano-island arrays on gold thin films
Creators: name: Horn, Logan Bishop-Van
name: Zhang, Irene P.
name: Waite, Emily N.
name: Mondragon-Shem, Ian
name: Jensen, Scott
name: Oh, Junseok
name: Lippman, Tom
name: Durkin, Malcolm
name: Hughes, Taylor L.
name: Mason, Nadya
name: Moler, Kathryn A.
name: Sochnikov, Ilya
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this work we study the effect of engineered disorder on the local magnetic response of proximity coupled superconducting island arrays by comparing scanning Superconducting Quantum Interference Device (SQUID) susceptibility measurements to a model in which we treat the system as a network of one-dimensional (1D) superconductor-normal metal-superconductor (SNS) Josephson junctions, each with a Josephson coupling energy $E_J$ determined by the junction length or distance between islands. We find that the disordered arrays exhibit a spatially inhomogeneous diamagnetic response which, for low local applied magnetic fields, is well described by this junction network model, and we discuss these results as they relate to inhomogeneous two-dimensional (2D) superconductors. Our model of the static magnetic response of the arrays does not fully capture the onset of nonlinearity and dissipation with increasing applied field, as these effects are associated with vortex motion due to the dynamic nature of the scanning SQUID susceptometry measurement. This work demonstrates a model 2D superconducting system with engineered disorder and highlights the impact of dissipation on the local magnetic properties of 2D superconductors and Josephson junction arrays.
description: Main text: 9 pages, 5 figures. Supplementary material: 11 pages, 12 figures. Accepted to Phys. Rev. B. The first two authors contributed equally
Access to Medical Dermatologic Care In the United States
Creators: name: Brown, Katherine L., M.D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2005

description: Dermatological complaints account for approximately 6% of all outpatient visits. Many dermatologic conditions necessitate timely and quality care to avert morbidity and mortality. Examples of conditions needing early and comprehensive dermatological treatment include melanoma, the 6th leading cause of cancer in the United States, and psoriasis, a significant cause of disability. Dermatologists provide special expertise in the care of patients with skin disorders. Unfortunately, despite projections of an oversupply of specialists, market demands suggest an undersupply as well as a geographic maldistribution of dermatologists in the United States. Access to efficient dermatological care of high quality is an increasingly important and challenging problem. In examining issues of access, it is important to establish some general definitions. According to the American Heritage Dictionary, 4th edition, accessibility is "the quality of being at hand when needed" or "the attribute of being easy to meet or deal with." For the purposes of this paper, access is defined as the ease with which one needing care can utilize existing, appropriate services. In this regard, good access to care means that appropriate services are readily available to the people who need them. Measures of access to care provide an important means for evaluating the quality of existing health care delivery systems and informing sound policy decisions. To date, most research regarding access to dermatologic care has focused on workforce characteristics. Unfortunately, limitations in access to care extend beyond issues like a shortage of health care providers or facilities, as many factors affect access to health care services. These include, but are not limited to, the balance between supply (i.e. the amount of available and appropriate services) and demand (i.e. the number of needed services), as well as the proximity of the supply relative to the demand (e.g. geographic distribution) and the resources required in utilizing the supply (e.g. insurance, money, time, transportation, etc.). Consequently, this paper will analyze the existing data regarding access to medical dermatologic care in the United States; the current measures used for quantifying and projecting supply and demand; and the feasibility of suggested policies for improving access to dermatological services.
The Minnesota Poll, April 1987
Creators: name: Minneapolis Star Tribune
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: U.S./Soviet arms agreements (8); presidential candidates (14); Minnesota Attorney General Hubert Humphrey III (16); Senator Dave Durenberger (17); Governor Rudy Perpich (2); Minnesota's Independent-Republican Party (5); Minnesota's Democratic-Farmer-Labor Party (5); voting (6).