cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A neurophysiological deficit in early visual processing in schizophrenia patients with auditory hallucinations: Visual N1 and auditory hallucinations in schizophrenia
Creators: name: Fekri, Shiva
name: Kayser, Jürgen
name: Gil, Roberto
name: Bruder, Gerard E.
name: Alschuler, Daniel M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Existing 67-channel ERPs, obtained during recognition and working memory paradigms with words or faces, were used to examine early visual processing in schizophrenia patients prone to auditory hallucinations (AH, n = 26) or not (NH, n = 49) and healthy controls (HC, n = 46). Current source density (CSD) transforms revealed distinct, strongly left- (words) or right-lateralized (faces; N170) inferior-temporal N1 sinks (150 ms) in each group. N1 was quantified by temporal PCA of peak-adjusted CSDs. For words and faces in both paradigms, N1 was substantially reduced in AH compared with NH and HC, who did not differ from each other. The difference in N1 between AH and NH was not due to overall symptom severity or performance accuracy, with both groups showing comparable memory deficits. Our findings extend prior reports of reduced auditory N1 in AH, suggesting a broader early perceptual integration deficit that is not limited to the auditory modality.
El-WaveHoltz: A Time-Domain Iterative Solver for Time-Harmonic Elastic Waves
Creators: name: Appelö, Daniel
name: Garcia, Fortino
name: Loya, Allen Alvarez
name: Runborg, Olof
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65M22, 65M12

description: We consider the application of the WaveHoltz iteration to time-harmonic elastic wave equations with energy conserving boundary conditions. The original WaveHoltz iteration for acoustic Helmholtz problems is a fixed-point iteration that filters the solution of the wave equation with time-harmonic forcing and boundary data. As in the original WaveHoltz method, we reformulate the fixed point iteration as a positive definite linear system of equations that is iteratively solved by a Krylov method. We present two time-stepping schemes, one explicit and one (novel) implicit, which completely remove time discretization error from the WaveHoltz solution by performing a simple modification of the initial data and time-stepping scheme. Numerical experiments indicate an iteration scaling similar to that of the original WaveHoltz method, and that the convergence rate is dictated by the shortest (shear) wave speed of the problem. We additionally show that the implicit scheme can be advantageous in practice for meshes with disparate element sizes.
Cerebrovascular Risk Factors, Vascular Disease, and Neuropsychological Outcomes in Adults With Major Depression
Creators: name: Babyak, Michael A.
name: Blumenthal, James A.
name: Hinderliter, Alan
name: Smith, Patrick J.
name: Doraiswamy, P Murali
name: Hoffman, Benson M.
name: Waugh, Robert
name: Sherwood, Andrew
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: To investigate the relationship of cerebrovascular risk factors (CVRFs), endothelial function, carotid artery intima medial thickness (IMT), and neuropsychological performance in a sample of 198 middle-aged and older individuals with major depressive disorder (MDD). Neuropsychological deficits are common among adults with MDD, particularly among those with CVRFs and potentially persons with subclinical vascular disease.
Horava-Lifshitz Black Hole Hydrodynamics
Creators: name: Eling, Christopher
name: Oz, Yaron
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the holographic hydrodynamics of black holes in generally covariant gravity theories with a preferred time foliation. Gravitational perturbations in these theories have spin two and spin zero helicity modes with generically different speeds. The black hole solutions possess a spacelike causal boundary called the universal horizon. We relate the flux of the spin zero perturbation across the universal horizon to the new dissipative transport in Lifshitz field theory hydrodynamics found in arXiv:1304.7481. We construct in detail the hydrodynamics of one such black hole solution, and calculate the ratio of the shear viscosity to the entropy density.
description: 22 pages; v2: corrected final value of \eta/s, minor clarifications, fixed typos, added references
Individual and Neighborhood Socioeconomic Status Characteristics and Prevalence of Metabolic Syndrome: The Atherosclerosis Risk in Communities (ARIC) Study
Creators: name: Rose, Kathryn M.
name: Chichlowska, Kristal L.
name: Heiss, Gerardo
name: Diez-Roux, Ana V.
name: McNeill, Annie M.
name: Golden, Sherita H.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: The objective of this study was to examine the association of individual socioeconomic status (iSES) and neighborhood SES (nSES) on the prevalence of metabolic syndrome (MetS) in the Atherosclerosis Risk in Communities (ARIC) Study, (1987–99).
Equations of fluid dynamics with the l-conformal Galilei symmetry
Creators: name: Galajinsky, Anton
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Equations of fluid dynamics are formulated, which hold invariant under the action of the l-conformal Galilei group. They include the conventional continuity equation, a higher order material derivative analogue of the Euler equation, and a suitable modification of the conventional equation of state. Conserved charges associated with the l-conformal Galilei symmetry transformations are presented.
description: 14 pages
Unconventional magnetism in the layered oxide LaSrRhO$_4$
Creators: name: Furuta, Noriyasu
name: Asai, Shinichiro
name: Igarashi, Taichi
name: Okazaki, Ryuji
name: Yasui, Yukio
name: Terasaki, Ichiro
name: Ikeda, Masami
name: Fujita, Takahito
name: Hagiwara, Masayuki
name: Kobayashi, Kensuke
name: Kumai, Reiji
name: Nakao, Hironori
name: Murakami, Youichi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have prepared polycrystalline samples of LaSrRh$_{1-x}$Ga$_x$O$_4$ and LaSr$_{1-x}$Ca$_x$RhO$_4$,and have measured the x-ray diffraction, resistivity, Seebeck coefficient, magnetization and electron spin resonance in order to evaluate their electronic states. The energy gap evaluated from the resistivity and the Seebeck coefficient systematically changes with the Ga concentration, and suggests that the system changes from a small polaron insulator to a band insulator. We find that all the samples show Curie-Weiss-like susceptibility with a small Weiss temperature of the order of 1 K, which is seriously incompatible with the collective wisdom that a trivalent rhodium ion is nonmagnetic. We have determined the $g$ factor to be $g$=2.3 from the electron spin resonance, and the spin number to be $S$=1 from the magnetization-field curves by fitting with a modified Brillouin function. The fraction of the $S$=1 spins is 2--5%, which depends on the degree of disorder in the La/Sr/Ca-site, which implies that disorder near the apical oxygen is related to the magnetism of this system. A possible origin for the magnetic Rh$^{3+}$ ions is discussed.
description: 7 pages, 9 figures, Phys. Rev. B (accepted)
Prevalence and Comorbidity of Psychiatric Diagnoses Based on Reference Standard in an HIV+ Patient Population
Creators: name: Miller, William C.
name: Pence, Brian Wells
name: Gaynes, Bradley N.
name: Eron, Joseph J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: To study the prevalence of psychiatric comorbidity based on reference standard diagnostic criteria in patients with human immunodeficiency virus (HIV). Psychiatric illness is common in patients with HIV and has been associated with negative health behaviors and poorer clinical outcomes. Among those persons with psychiatric illness, psychiatric comorbidity (multiple simultaneous diagnoses) is associated with increased psychiatric severity and higher HIV risk behaviors.
Vital Exhaustion and Retinal Microvascular Changes in Cardiovascular Disease: Atherosclerosis Risk in Communities Study
Creators: name: Cheung, Ning
name: Couper, David
name: Wong, Tien Y.
name: Mosley, Thomas H.
name: Klein, Ronald
name: Rogers, Sophie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: Negative psychological factors, such as depression, have been implicated in the development of cardiovascular disease. Whether this link is mediated by macrovascular or microvascular disease is unknown. This study aimed to determine whether vital exhaustion, a measure of negative emotion, is associated with microvascular changes in the retina.
An accurate new method of calculating absolute magnitudes and K-corrections applied to the Sloan filter set
Creators: name: Beare, Richard
name: Brown, Michael
name: Pimbblet, Kevin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We describe an accurate new method for determining absolute magnitudes, and hence also K-corrections, which is simpler than most previous methods, being based on a quadratic function of just one suitably chosen observed color. The method relies on the extensive and accurate new set of 129 empirical galaxy template SEDs from Brown et al. (2014). A key advantage of our method is that we can reliably estimate random errors in computed absolute magnitudes due to galaxy diversity, photometric error and redshift error. We derive K-corrections for the five Sloan Digital Sky Survey filters and provide parameter tables for use by the astronomical community. Using the New York Value-Added Galaxy Catalog we compare our K-corrections with those from kcorrect. Our K-corrections produce absolute magnitudes that are generally in good agreement with kcorrect. Absolute g, r, i, z-band magnitudes differ by less than 0.02 mag, and those in the u-band by ~0.04 mag. The evolution of rest-frame colors as a function of redshift is better behaved using our method, with relatively few galaxies being assigned anomalously red colors and a tight red sequence being observed across the whole 0.0 < z < 0.5 redshift range.
description: 23 pages, 16 figures
Initial value problems for wave equations on manifolds
Creators: name: Baer, Christian
name: Wafo, Roger Tagne
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35L05, 35L15, 58J45

description: We study the global theory of linear wave equations for sections of vector bundles over globally hyperbolic Lorentz manifolds. We introduce spaces of finite energy sections and show well-posedness of the Cauchy problem in those spaces. These spaces depend in general on the choice of a time function but it turns out that certain spaces of finite energy solutions are independent of this choice and hence invariantly defined. We also show existence and uniqueness of solutions for the Goursat problem where one prescribes initial data on a characteristic partial Cauchy hypersurface. This extends classical results due to Hörmander.
description: weakened assumptions in the theorem on the Goursat problem, references added, some more minor modifications
Incident Stressful and Traumatic Life Events and Human Immunodeficiency Virus Sexual Transmission Risk Behaviors in a Longitudinal, Multisite Cohort Study
Creators: name: Mugavero, Michael J.
name: Leserman, Jane
name: Wells Pence, Brian
name: Raper, James L.
name: Thielman, Nathan M.
name: Reif, Susan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: To assess the association between incident stressful life events (e.g., sexual and physical assault; housing instability; and major financial, employment, and legal difficulties) and unprotected anal or vaginal sexual intercourse (unprotected sex) among people living with HIV/AIDS (PLWHA).
Similarity between nuclear rainbow and meteorological rainbow -- evidence for nuclear ripples
Creators: name: Ohkubo, S.
name: Hirabayashi, Y.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present evidence for the nuclear ripples superimposed on the Airy structure of the nuclear rainbow, which is similar to the meteorological rainbow. The mechanism of the nuclear ripples is also similar to that of the meteorological rainbow, which is caused by the interference between the externally reflective waves and refractive waves. The nuclear ripple structure was confirmed by analyzing the elastic angular distribution in $^{16}$O+$^{12}$C rainbow scattering at $E_L$=115.9 MeV using the coupled channels method by taking account of coupling to the excited states of $^{12}$C and $^{16}$O with a double folding model derived from a density-dependent effective nucleon-nucleon force with realistic wave functions for $^{12}$C and $^{16}$O. The coupling to the excited states plays the role of creating the external reflection.
description: 6 pages, 6 figures
Robustness of Controlled Quantum Dynamics
Creators: name: Koswara, Andy
name: Chakrabarti, Raj
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Control of multi-level quantum systems is sensitive to implementation errors in the control field and uncertainties associated with system Hamiltonian parameters. A small variation in the control field spectrum or the system Hamiltonian can cause an otherwise optimal field to deviate from controlling desired quantum state transitions and reaching a particular objective. An accurate analysis of robustness is thus essential in understanding and achieving model-based quantum control, such as in control of chemical reactions based on ab initio or experimental estimates of the molecular Hamiltonian. In this paper, theoretical foundations for quantum control robustness analysis are presented from both a distributional perspective - in terms of moments of the transition amplitude, interferences, and transition probability - and a worst-case perspective. Based on this theory, analytical expressions and a computationally efficient method for determining the robustness of coherently controlled quantum dynamics are derived. The robustness analysis reveals that there generally exists a set of control pathways that are more resistant to destructive interferences in the presence of control field and system parameter uncertainty. These robust pathways interfere and combine to yield a relatively accurate transition amplitude and high transition probability when uncertainty is present.
description: In press, Physical Review A (https://journals.aps.org/pra/)
Primordial black holes capture by stars and induced collapse to low-mass stellar black holes
Creators: name: Oncins, Marc
name: Miralda-Escudé, Jordi
name: Gutiérrez, Jordi L.
name: Gil-Pons, Pilar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Primordial black holes in the asteroid-mass window ($\sim 10^{-16}$ to $10^{-11} \rm M_{\odot}$), which might constitute all the dark matter, can be captured by stars when they traverse them at low enough velocity. After being placed on a bound orbit during star formation, they can repeatedly cross the star if the orbit happens to be highly eccentric, slow down by dynamical friction and end up in the stellar core. The rate of these captures is highest in halos of high dark matter density and low velocity dispersion, when the first stars form at redshift $z \sim 20$. We compute this capture rate for low-metallicity stars of $0.3$ to $1\rm M_{\odot}$, and find that a high fraction of these stars formed in the first dwarf galaxies would capture a primordial black hole, which would then grow by accretion up to a mass that may be close to the total star mass. We show the capture rate of primordial black holes does not depend on their mass over this asteroid-mass window, and should not be much affected by external tidal perturbations. These low-mass stellar black holes could be discovered today in low-metallicity, old binary systems in the Milky Way containing a surviving low-mass main-sequence star or a white dwarf, or via gravitational waves emitted in a merger with another compact object. No mechanisms in standard stellar evolution theory are known to form black holes of less than a Chandrasekhar mass, so detecting a low-mass black hole would fundamentally impact our understanding of stellar evolution, dark matter and the early Universe.
description: 11 pages, 7 figures, 1 table - submitted to MNRAS. v2 : matching version accepted in MNRAS
Posttraumatic Stress Disorder in Anorexia Nervosa
Creators: name: Treasure, Janet
name: Reyes-Rodríguez, Mae Lynn
name: Bulik, Cynthia M.
name: Huber, Thomas
name: Kaye, Walter H.
name: Klump, Kelly L.
name: Ulman, Teresa Frances
name: Crawford, Steve
name: Kaplan, Allan S.
name: Brandt, Harry
name: Jones, Ian
name: Thornton, Laura M
name: Von Holle, Ann
name: Johnson, Craig
name: Halmi, Katherine A.
name: Strober, Michael
name: Mitchell, James E.
name: Berrettini, Wade H.
name: Woodside, D. Blake
name: Fichter, Manfred M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Comorbidity among eating disorders, traumatic events, and post traumatic stress disorder (PTSD) has been reported in several studies. The main objectives of this study were to describe the nature of traumatic events experienced and to explore the relation between PTSD and anorexia nervosa (AN) in a sample of women.
Was kann in einer Diözese für die Wiedervereinigung der getrennten Christen getan werden?
Creators: name: Nierman, Pieter
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 1 Nr. 4 (1965): Concilium: Internationale Zeitschrift für Theologie, Band 1, Heft 4
IZI: Inferring the Gas Phase Metallicity (Z) and Ionization Parameter (q) of Ionized Nebulae using Bayesian Statistics
Creators: name: Blanc, Guillermo A.
name: Kewley, Lisa
name: Vogt, Frédéric P. A.
name: Dopita, Michael A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a new method for inferring the metallicity (Z) and ionization parameter (q) of HII regions and star-forming galaxies using strong nebular emission lines (SEL). We use Bayesian inference to derive the joint and marginalized posterior probability density functions for Z and q given a set of observed line fluxes and an input photo-ionization model. Our approach allows the use of arbitrary sets of SELs and the inclusion of flux upper limits. The method provides a self-consistent way of determining the physical conditions of ionized nebulae that is not tied to the arbitrary choice of a particular SEL diagnostic and uses all the available information. Unlike theoretically calibrated SEL diagnostics the method is flexible and not tied to a particular photo-ionization model. We describe our algorithm, validate it against other methods, and present a tool that implements it called IZI. Using a sample of nearby extra-galactic HII regions we assess the performance of commonly used SEL abundance diagnostics. We also use a sample of 22 local HII regions having both direct and recombination line (RL) oxygen abundance measurements in the literature to study discrepancies in the abundance scale between different methods. We find that oxygen abundances derived through Bayesian inference using currently available photo-ionization models in the literature can be in good (~30%) agreement with RL abundances, although some models perform significantly better than others. We also confirm that abundances measured using the direct method are typically 0.2 dex lower than both RL and photo-ionization model based abundances.
description: 23 pages, 9 figures, Accepted for publication in The Astrophysical Journal (Oct 28 2014)
Assessment of the Dimension-5 Seesaw Portal and Impact of Exotic Higgs Decays on Non-Pointing Photon Searches
Creators: name: Delgado, F.
name: Duarte, L.
name: Jones-Perez, J.
name: Manrique-Chavil, C.
name: Peña, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Dimension-5 Seesaw Portal is a Type-I Seesaw model extended by $d=5$ operators involving the sterile neutrino states, leading to new interactions between all neutrinos and the Standard Model neutral bosons. In this work we focus primarily on the implications of these new operators at the GeV-scale. In particular, we recalculate the heavy neutrino full decay width, up to three-body decays. We also review bounds on the dipole operator, and revisit LEP constraints on its coefficient. Finally, we turn to heavy neutrino pair production from Higgs decays, where the former are long-lived and disintegrate into a photon and a light neutrino. We probe this process by recasting two ATLAS searches for non-pointing photons, showing the expected event distribution in terms of arrival time $t_γ$ and pointing variable $|Δz_γ|$.
description: 42 pages, 9 figures, 3 appendices; v2: improved discussion, results unchanged. Version accepted for publication in JHEP
title: Stigma in childhood : let's speak out loud
Creators: name: Kikadidi, Fouzi Mathey
Publisher: name: Strathprints - University of Strathclyde
Year: 2017

description: This article explores various manifestations of stigma in the young and adult life of a care leaver and the multiple trauma encountered along the path of Fouzi Mathey Kikadidi, the author. Part essay, part testimonial, this article reflects on how perceptions and stereotypes can affect a young child and explores the defense mechanisms and tools used to overcome it. It highlights different approaches to deal with stigma and invites to a joint reflexion on how children in care could repossess their own history.
HD314884: A Slowly Pulsating B star in a Close Binary
Creators: name: Johnson, Christopher B.
name: Hynes, R. I.
name: Maccarone, T.
name: Britt, C T.
name: Davis, H.
name: Jonker, P. G.
name: Torres, M. A. P.
name: Steeghs, D.
name: Greiss, S.
name: Nelemans, G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the results of a spectroscopic and photometric analysis of HD314884, a slowly pulsating B star (SPB) in a binary system with detected soft X-ray emission. We spectrally classify the B star as a B5V-B6V star with T$_{eff}$ = 15,490 $\pm$ 310 K, log $g$ = 3.75 $\pm$ 0.25 dex, and a photometric period of P$_{0}$ = 0.889521(12) days. A spectroscopic period search reveals an orbital period for the system of P$_{orb}$ = 1.3654(11) days. The discrepancy in the two periods and the identification of a second and third distinct frequency in the photometric fourier transform at P$_1$ = 3.1347(56) and P$_2$ = 1.517(28) days provides evidence that HD314884 is a slowly pulsating B star (SPB) with at least three oscillation frequencies. These frequencies appear to originate from higher-order, non-linear tidal pulsations. Using the dynamical parameters obtained from the radial velocity curve, we find the most probable companion mass to be M$_1$ = $\sim$0.8 M$_{\odot}$ assuming a typical mass for the B star and most probable inclination. We conclude that the X-ray source companion to HD314884 is most likely a coronally active G-type star or a white dwarf (WD), with no apparent emission lines in the optical spectrum. The mass probability distribution of the companion star mass spans 0.6-2.3 M$_{\odot}$ at 99$\%$ confidence which allows the possibility of a neutron star companion. The X-ray source is unlikely to be a black hole unless it is of a very low mass or low binary inclination.
description: Accepted for publication in Monthly Notices of the Royal Astronomical Society (MNRAS)- July 29, 2014. 7 pages, 8 figures, 1 table
Psychiatric Symptoms and Proinflammatory Cytokines in Pregnancy
Creators: name: Pressman, Eva K.
name: Rubinow, David R.
name: Moynihan, Jan A.
name: Gilchrist, Michelle
name: O'Connor, Thomas G.
name: Blackmore, Emma Robertson
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Clinical studies suggest that psychiatric symptoms, particularly depression, anxiety and trauma, may be associated with inflammation, as indexed by proinflammatory cytokines. Such a link may be especially significant in pregnancy, and may shed additional light on the etiology of perinatal mood disorders.
Regular black holes without mass inflation instability
Creators: name: Carballo-Rubio, Raúl
name: Di Filippo, Francesco
name: Liberati, Stefano
name: Pacilio, Costantino
name: Visser, Matt
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Generic models of regular black holes have separate outer and inner horizons, both with nonzero surface gravity. It has been shown that a nonzero inner horizon surface gravity results in exponential instability at the inner horizon controlled by this parameter. This phenomenon takes the name of "mass inflation instability", and its presence has put in question the physical viability of regular black holes as alternatives to their (singular) general relativity counterparts. In this paper, we show that it is possible to make the inner horizon surface gravity vanish, while maintaining the separation between horizons, and a non-zero outer horizon surface gravity. We construct specific geometries satisfying these requirements, and analyze their behavior under different kinds of perturbations, showing that the exponential growth characteristic of mass inflation instability is not present for these geometries. These "inner-extremal" regular black holes are thereby better behaved than singular black holes and generic regular black holes, thus providing a well-motivated alternative of interest for fundamental and phenomenological studies.
description: 16 pages, 3 figures
Search for neutral MSSM Higgs bosons decaying to a pair of tau leptons in pp collisions
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for neutral Higgs bosons in the minimal supersymmetric extension of the standard model (MSSM) decaying to tau-lepton pairs in pp collisions is performed, using events recorded by the CMS experiment at the LHC. The dataset corresponds to an integrated luminosity of 24.6 inverse femtobarns, with 4.9 inverse femtobarns at 7 TeV and 19.7 inverse femtobarns at 8 TeV. To enhance the sensitivity to neutral MSSM Higgs bosons, the search includes the case where the Higgs boson is produced in association with a b-quark jet. No excess is observed in the tau-lepton-pair invariant mass spectrum. Exclusion limits are presented in the MSSM parameter space for different benchmark scenarios, m[h,max}, m[h,mod+], m[h,mod-], light-stop, light-stau, tau-phobic, and low-m[H]. Upper limits on the cross section times branching fraction for gluon fusion and b-quark associated Higgs boson production are also given.
description: Replaced with published version. Added journal reference and DOI
Magnon squeezing enhanced entanglement in a cavity magnomechanical system
Creators: name: Ding, Ming-Song
name: Shi, Ying
name: Liu, Yu-jie
name: Zheng, Li
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the generation of the entanglement in a cavity magnomechanical system, which consists of three modes: a magnon mode, a microwave cavity mode and a mechanical vibration mode, the couplings of the magnon-photon and the magnon-phonon are achieved by the magnetic dipole interaction and the magnetostrictive interaction, respectively. By introducing a squeezing of the magnon mode, the magnon-photon and the magnon-phonon entanglements are significantly enhanced compared with the case without inserting the magnon squeezing. We find that an optimal parameter of the squeezing exists, which yields the maximum entanglement. This study provides a new idea for exploring the properties of quantum entanglement in the the cavity magnomechanical systems, and may have some potential applications in the quantum state engineering.
Hypothalamic-Pituitary-Thyroid Axis Function in Women With a Menstrually Related Mood Disorder: Association With Histories of Sexual Abuse
Creators: name: Leserman, Jane
name: Bunevicius, Adomas
name: Girdler, Susan S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: We previously reported a unique hypothalamic-pituitary-thyroid (HPT) axis profile in women with a menstrually related mood disorder (MRMD) who also had a history of sexual abuse (SA). In the present study, we sought to extend that work by examining the association of a SA history with HPT-axis disturbance in both MRMD and non-MRMD women.
Effect of Sodium Chloride Adsorption on the Surface Premelting of Ice
Creators: name: Berrens, Margaret L.
name: Bononi, Fernanda C.
name: Donadio, Davide
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We characterise the structural properties of the quasi-liquid layer (QLL) at two low-index ice surfaces in the presence of sodium chloride (Na$^+/$Cl$^-$) ions by molecular dynamics simulations. We find that the presence of a high surface density of Na$^+/$Cl$^-$ pairs changes the surface melting behaviour from step-wise to gradual melting. The ions lead to an overall increase of the thickness and the disorder of the QLL, and to a low-temperature roughening transition of the air-ice interface. The local molecular structure of the QLL is similar to that of liquid water, and the differences between the basal and primary prismatic surface are attenuated by the presence of Na$^+/$Cl$^-$ pairs. These changes modify the crystal growth rates of different facets and the solvation environment at the surface of sea-water ice with a potential impact on light scattering and environmental chemical reactions.
description: 9 pages, 8 figures
Socioeconomic Indices as Independent Correlates of C-Reactive Protein in the National Longitudinal Study of Adolescent Health
Creators: name: Babyak, Michael A.
name: Siegler, Ilene C.
name: Jiang, Rong
name: Brummett, Beverly H.
name: Singh, Abanish
name: Harris, Kathleen Mullan
name: Williams, Redford B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Examine the association between SES and C-reactive protein (CRP) to understand how SES may increase the risk of CVD and thus identify targets for prevention measures.
Interior of helical black holes
Creators: name: Liu, Yan
name: Lyu, Hong-Da
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the interior structure of five dimensional neutral helical black holes in Einstein gravity and charged helical black holes in Einstein-Maxwell gravity. Inside the neutral helical black holes, the systems evolve to a stable spacelike Kasner singularity. The metric field related to the helical deformation strength exhibits oscillation behavior close to the horizon at low temperature and small helical deformation strength. Inside the charged helical black holes, we show that the inner Cauchy horizon can not exist. The systems also evolve from the horizon to a stable Kasner singularity. We find that the oscillations can exist and there is a special feature that the oscillations occur near the horizon and before the collapse of the Einstein-Rosen bridge for the charged helical black holes.
description: v2: 23 pages, 9 figures, published version
Associations of Chronic Stress Burden, Perceived Stress, and Traumatic Stress With Cardiovascular Disease Prevalence and Risk Factors in the Hispanic Community Health Study/Study of Latinos Sociocultural Ancillary Study
Creators: name: Roesch, Scott C.
name: Birnbaum-Weitzman, Orit
name: Sotres-Alvarez, Daniela
name: Perreira, Krista
name: Wassertheil-Smoller, Sylvia
name: Isasi, Carmen R.
name: Fortmann, Addie L.
name: Gallo, Linda C.
name: Carnethon, Mercedes R.
name: Schneiderman, Neil
name: Castañeda, Sheila F.
name: Daviglus, Martha L.
name: Talavera, Gregory A.
name: Penedo, Frank J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: The current study examined multiple stress indicators (chronic, perceived, traumatic) in relation to prevalent coronary heart disease (CHD), stroke, and major cardiovascular disease (CVD) risk factors (i.e., diabetes, dyslipidemia, hypertension, current smoking) in the multi-site Hispanic Community Health Study/Study of Latinos (HCHS/SOL) Sociocultural Ancillary Study (2010–2011).
Goal-Oriented A-Posteriori Estimation of Model Error as an Aid to Parameter Estimation
Creators: name: Jha, Prashant K.
name: Oden, J. Tinsley
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 62F15

description: In this work, a Bayesian model calibration framework is presented that utilizes goal-oriented a-posterior error estimates in quantities of interest (QoIs) for classes of high-fidelity models characterized by PDEs. It is shown that for a large class of computational models, it is possible to develop a computationally inexpensive procedure for calibrating parameters of high-fidelity models of physical events when the parameters of low-fidelity (surrogate) models are known with acceptable accuracy. The main ingredients in the proposed model calibration scheme are goal-oriented a-posteriori estimates of error in QoIs computed using a so-called lower fidelity model compared to those of an uncalibrated higher fidelity model. The estimates of error in QoIs are used to define likelihood functions in Bayesian inversion analysis. A standard Bayesian approach is employed to compute the posterior distribution of model parameters of high-fidelity models. As applications, parameters in a quasi-linear second-order elliptic boundary-value problem (BVP) are calibrated using a second-order linear elliptic BVP. In a second application, parameters of a tumor growth model involving nonlinear time-dependent PDEs are calibrated using a lower fidelity linear tumor growth model with known parameter values.
description: 24 pages, 5 figures
Implications of Protecting the QCD Axion in the Dual Description
Creators: name: Choi, Gongjun
name: Leedom, Jacob
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: quantum chromodynamics: axion
energy: low
quality
birefringence
axion-like particles
decay constant
axion: dark energy
differential forms: 3

description: The QCD axion can be be formulated in a dual description as a massive 2-form field. In this picture, the QCD axion quality problem translates into the question if there are additional 3-forms coupled to the axion other than the QCD 3-form that emerges at low energy. If such forms exist, the quality problem can be resolved via the introduction of other massive 2-forms (and thus corresponding axions), one for each additional 3-form. This can motivate an 'axiverse from a high quality QCD axion'. In this work, we discuss this issue in the general case where the QCD axion couples to arbitrarily many 3-forms. Given the multiple axion solution, we discuss the phenomenological implications of the enhanced quality of the QCD axion in the dual description. These include sub-eV axion-like particle search through the axion-photon coupling, the cosmological consistency of a large decay constant QCD axion, and a model for the observed cosmic birefringence.
Hydrogen assisted growth of high quality epitaxial graphene on the C-face of 4H-SiC
Creators: name: Cai, Tuocheng
name: Jia, Zhenzhao
name: Yan, Baoming
name: Yu, Dapeng
name: Wu, Xiaosong
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate hydrogen assisted growth of high quality epitaxial graphene on the C-face of 4H-SiC. Compared with the conventional thermal decomposition technique, the size of the growth domain by this method is substantially increased and the thickness variation is reduced. Based on the morphology of epitaxial graphene, the role of hydrogen is revealed. It is found that hydrogen acts as a carbon etchant. It suppresses the defect formation and nucleation of graphene. It also improves the kinetics of carbon atoms via hydrocarbon species. These effects lead to increase of the domain size and the structure quality. The consequent capping effect results in smooth surface morphology and suppression of multilayer growth. Our method provides a viable route to fine tune the growth kinetics of epitaxial graphene on SiC.
description: 9 pages, 4 figures
Depression and Oxidative Stress: Results From a Meta-Analysis of Observational Studies
Creators: name: Miller, Edgar R.
name: Szanton, Sarah L.
name: Palta, Priya
name: Samuel, Laura J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: To perform a systematic review and meta-analysis that quantitatively tests and summarizes the hypothesis that depression results in elevated oxidative stress and lower antioxidant levels.
Skyrmion Helicity: Quantization and Quantum Tunneling Effects
Creators: name: Psaroudaki, Christina
name: Panagopoulos, Christos
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We derive the quantization of magnetic helicity in the solid-state and demonstrate tunable macroscopic quantum tunneling, coherence, and oscillation for a skyrmion spin texture stabilized in frustrated magnets. We also discuss the parameter space for the experimental realization of quantum effects. Typically, for a skyrmion of 5 nm radius, quantum tunneling between two macroscopic states with distinct helicities occurs with an inverse escape rate within seconds below 100 mK, and an energy splitting in the MHz regime. Feasibility of quantum tunneling of an ensemble of magnetic spins inspires new platforms for quantum operations utilizing topologically protected chiral spin configurations.
description: 8 Figures
Direct measurement of the Wigner function of atoms in an optical trap
Creators: name: Winkelmann, Falk-Richard G.
name: Weidner, Carrie A.
name: Ramola, Gautam
name: Alt, Wolfgang
name: Meschede, Dieter
name: Alberti, Andrea
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present a scheme that uses Ramsey interferometry to directly probe the Wigner function of a neutral atom confined in an optical trap. The proposed scheme relies on the well-established fact that the Wigner function at a given point $(x,p)$ in phase space is proportional to the expectation value of the parity operator relative to that point. In this work, we show that parity-even and parity-odd motional states can be mapped to two distinct internal states of the atom by using state-dependent trapping potentials. The Wigner function can thus be measured point-by-point in phase space with a single, direct measurement of the internal state population. Numerical simulations show that the scheme is robust in that it applies not only to deep, harmonic potentials but also to shallower, anharmonic traps.
description: 10 pages, 5 figures
The Effects of a Telehealth Coping Skills Intervention on Outcomes in Chronic Obstructive Pulmonary Disease: Primary Results From the INSPIRE-II Study
Creators: name: Diaz, Philip T.
name: Baucom, Donald
name: Smith, Patrick J.
name: Welty-Wolf, Karen
name: Palmer, Scott M.
name: Emery, Charles F.
name: O’Hayer, Virginia F.
name: Mabe, Stephanie
name: Johnson, Julie J.
name: Babyak, Michael A.
name: Blumenthal, James A.
name: Martinu, Tereza
name: Durheim, Michael
name: Keefe, Francis J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Chronic obstructive pulmonary disease (COPD) is associated with increased morbidity and mortality and reduced quality of life. Novel interventions are needed to improve outcomes in COPD patients. The present study assessed the effects of a telephone-based coping skills intervention on psychological and somatic quality of life and on the combined medical endpoint of COPD-related hospitalizations and all-cause mortality.
Optical-phonon resonances with saddle-point excitons in twisted-bilayer graphene
Creators: name: Jorio, Ado
name: Kasperczyk, Mark
name: Clark, Nick
name: Neu, Elke
name: Maletinsky, Patrick
name: Vijayaraghavan, Aravind
name: Novotny, Lukas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Twisted-bilayer graphene (tBLG) exhibits van Hove singularities in the density of states that can be tuned by changing the twisting angle $θ$. A $θ$-defined tBLG has been produced and characterized with optical reflectivity and resonance Raman scattering. The $θ$-engineered optical response is shown to be consistent with persistent saddle-point excitons. Separate resonances with Stokes and anti-Stokes Raman scattering components can be achieved due to the sharpness of the two-dimensional saddle-point excitons, similar to what has been previously observed for one-dimensional carbon nanotubes. The excitation power dependence for the Stokes and anti-Stokes emissions indicate that the two processes are correlated and that they share the same phonon.
description: 5 pages, 6 figures
Cortisol Reactivity to Stress and Its Association With White Matter Integrity in Adults With Schizophrenia
Creators: name: Du, Xiaoming
name: Chiappelli, Joshua
name: Davis, Beshaun
name: Thangavelu, Kavita
name: Muellerklein, Florian
name: Kochunov, Peter
name: Rowland, Laura M.
name: Daughters, Stacey
name: Hong, L. Elliot
name: Sampath, Hemalatha
name: Nugent, Katie L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: While acute hypothalamic-pituitary-adrenal axis response to stress is often adaptive, prolonged responses may have detrimental effects. Many components of white matter structures are sensitive to prolonged cortisol exposure. We aimed to identify a behavioral laboratory assay for which cortisol response related to brain pathophysiology in schizophrenia. We hypothesized that an abnormally prolonged cortisol response to stress may be linked to abnormal white matter integrity in patients with schizophrenia.
Dualities of Adjoint QCD$_3$ from Branes
Creators: name: Armoni, Adi
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider an 'electric' $U(N)$ level $k$ QCD$_3$ theory with one adjoint Majorana fermion. Inspired by brane dynamics, we suggest that for $k \ge N/2$ the massive $m<0$ theory, in the vicinity of the supersymmetric point, admits a $U(k-\frac{N}{2})_{-(\frac{1}{2}k+\frac{3}{4}N),-(k+\frac{N}{2})}$ 'magnetic' dual with one adjoint Majorana fermion. The magnetic theory flows in the IR to a topological $U(k-\frac{N}{2})_{-N,-(k+\frac{N}{2})}$ pure Chern-Simons theory in agreement with the dynamics of the electric theory. When $k
description: 12 pages, 3 figures. v2: figure 2 corrected. v3: fixed the U(1) level throughout the paper. Accepted to JHEP. v4: a typo in the title(!) fixed. Thanks, Prem, for spotting it
Sex Differences in the Association Between Depression, Anxiety, and Type 2 Diabetes Mellitus
Creators: name: Koenen, Karestan C.
name: Colombo, Paolo C.
name: Gelb, Sara
name: Uddin, Monica
name: Galea, Sandro
name: Aiello, Allison E.
name: Kubzansky, Laura D.
name: Keyes, Katherine M.
name: Demmer, Ryan T.
name: Suglia, Shakira F.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Depression and anxiety have been inconsistently associated with diabetes. Sex differences in the biological and behavioral correlates of these forms of distress could partially explain these inconsistencies. We investigated sex-specific associations between depression/anxiety symptomatology and diabetes in two separate samples.
The Intestinal Microbiota in Acute Anorexia Nervosa and During Renourishment: Relationship to Depression, Anxiety, and Eating Disorder Psychopathology
Creators: name: Bulik, Cynthia M.
name: Kleiman, Susan C.
name: Bulik-Sullivan, Emily C.
name: Watson, Hunna J.
name: Carroll, Ian M.
name: Tarantino, Lisa M.
name: Huh, Eun Young
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: The relevance of the microbe-gut-brain axis to psychopathology is of interest in anorexia nervosa (AN), as the intestinal microbiota plays a critical role in metabolic function and weight regulation.
Evaluation and Management of Opioid Dependence in Pregnancy
Creators: name: Park, Eliza M.
name: Suzuki, Joji
name: Meltzer-Brody, Samantha
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Opioid use disorders are a growing public health problem in the United States. Most women who are opioid dependent are of childbearing age and management of opioid dependence during pregnancy poses unique challenges. Assessment includes evaluation for addiction, withdrawal syndromes, and co-morbid psychiatric diagnoses. Consultation-liaison psychiatrists may also be involved in acute pain management, perinatal medication management, buprenorphine induction and stabilization. For the past four decades, the standard of care has included methadone maintenance, but the increasing use of buprenorphine creates new treatment issues and opportunities.