cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Polar cap magnetic field reversals during solar grand minima: could pores play a role?
Creators: name: Svanda, M.
name: Brun, A. S.
name: Roudier, Th.
name: Jouve, L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the magnetic flux carried by pores located outside active regions with sunspots and investigate their possible contribution to the reversal of the global magnetic field of the Sun. We find that they contain a total flux of comparable amplitude to the total magnetic flux contained in polar caps. The pores located at distances of 40--100~Mm from the closest active region have systematically the correct sign to contribute to the polar cap reversal. These pores can predominantly be found in bipolar magnetic regions. We propose that during grand minima of solar activity, such a systematic polarity trend, akin to a weak magnetic (Babcock-Leighton-like) source term could still be operating but was missed by the contemporary observers due to the limited resolving power of their telescopes.
description: 11 pages, 9 figures, accepted for publication in Astronomy&Astrophysics
Evidence That Hydra I is a Tidally Disrupting Milky Way Dwarf Galaxy
Creators: name: Hargis, Jonathan R.
name: Kimmig, B.
name: Willman, B.
name: Caldwell, N.
name: Walker, M. G.
name: Strader, J.
name: Sand, D. J.
name: Grillmair, C. J.
name: Yoon, J. H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Eastern Banded Structure (EBS) and Hydra~I halo overdensity are very nearby (d $\sim$ 10 kpc) objects discovered in SDSS data. Previous studies of the region have shown that EBS and Hydra I are spatially coincident, cold structures at the same distance, suggesting that Hydra I may be the EBS's progenitor. We combine new wide-field DECam imaging and MMT/Hectochelle spectroscopic observations of Hydra I with SDSS archival spectroscopic observations to quantify Hydra I's present-day chemodynamical properties, and to infer whether it originated as a star cluster or dwarf galaxy. While previous work using shallow SDSS imaging assumed a standard old, metal-poor stellar population, our deeper DECam imaging reveals that Hydra~I has a thin, well-defined main sequence turnoff of intermediate age ($\sim 5-6$ Gyr) and metallicity ([Fe/H] = $-0.9$ dex). We measure statistically significant spreads in both the iron and alpha-element abundances of $σ_{[Fe/H]} = 0.13 \pm 0.02$ dex and $σ_{[α/{\rm Fe}]} = 0.09 \pm 0.03$ dex, respectively, and place upper limits on both the rotation and its proper motion. Hydra~I's intermediate age and [Fe/H] -- as well as its low [$α$/Fe], apparent [Fe/H] spread, and present-day low luminosity -- suggest that its progenitor was a dwarf galaxy, which subsequently lost more than $99.99\%$ of its stellar mass.
description: 17 pages, 14 figures, submitted to ApJ
Black Holes with Scalar Hairs in Einstein-Gauss-Bonnet Gravity
Creators: name: Brihaye, Y.
name: Ducobu, L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Einstein-Gauss-Bonnet gravity in five dimensions is extended by scalar fields and the corresponding equations are reduced to a system of non-linear differential equations. A large family of regular solutions of these equations is shown to exist. Generically, these solutions are spinning black holes with scalar hairs. They can be characterized (but not uniquely) by an horizon and an angular velocity on this horizon. Taking particular limits the black holes approach boson star or become extremal, in any case the limiting configurations remain hairy.
description: 16 pages, 9 figures
title: Anatomy of the posterior fossa emissary veins and their clinical importance
Creators: name: Pekcevik, Ridvan
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Computer Applications-Detection, diagnosis
subject: MR-Angiography
subject: CT-High Resolution
subject: CT-Angiography
subject: Head and neck
subject: Congenital

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: 1) To review and simplify the complex anatomy of the posterior fossa emissary veins. 2) To describe their anatomy usinghigh resolution CT, CT angiography and MR venography images. 3) Todiscuss clinical importance of reporting these vascular...
The power of décor: Kehinde Wiley's interventions into the construction of black masculine identity
Creators: name: Shareef, Shahrazad A.
Publisher: name: University of North Carolina at Chapel Hill
Year: 2010

description: Contemporary artist Kehinde Wiley creates portraits that employ conventional representations of young black males in varying degrees of hip-hop inspired attire placed against intricate, botanical patterns. Criticism of the artist's work claims that the subjects of his imagery are the old master paintings which often function as the artist's templates. It also implicitly suggests that Wiley accepts racialized typologies. In my analysis of the artist's distinct style, I argue that these images confront the construction of black masculinity and its reduction to a limited set of possibilities through its decorative system. I discuss the black male subjects in combination with the decor woven around their bodies. Interpreting botanical ornamentation as a visual analogue to American consumerism, I expand the subject of the paintings to include contemporary culture. These patterns act as social capital and function as an extension of the body. In addition to light, prints recalling an ethnic other and hip-hop attire, Wiley's decorative elements imbue the sitters with power and prestige through their references to history and their transgressions through race, class and gender. While Wiley's portraits do not completely revalorize black masculinity, they disrupt the reductive enframing from which it suffers.
Bi-Hamiltonian Structures of Chaotic Dynamical Systems in 3D
Creators: name: Esen, Oğul
name: Choudhury, Anindya Ghose
name: Guha, Partha
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 34C14, 34C20

description: We study Poisson structures of dynamical systems with three degrees of freedom which are known for their chaotic properties, namely Lü, modified Lü, Chen, $T$ and Qi systems. We show that all these flows admit bi-Hamiltonian structures depending on the values of their parameters.
description: 14 pages
title: BI-RADS breast density classification – an international standard?
Creators: name: Highnam, Ralph
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Quality assurance
subject: Screening
subject: Mammography
subject: Breast

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Mammographic breast density describes the proportion of radiopaque, fibroglandular tissue in the breast. Higher breast densities are strongly associated with an increased risk of breast cancer, with women reported to have a four- to six-fold...
Exploratory study of the effects of Collective Allostatic Load in a remote environment.
Creators: name: Patel, Pooja
name: Schmer-Galunder, Sonja
name: Gottlieb, Jeremy
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: Collective Allostatic Load
subject: Longitudinal Study
subject: Remote Environment

description: The goal of MEDULLA is to test an approach for assessing Collective Allostatic Load (CAL) and collect evidence for the robustness and generalizability in a series of two different analog studies using a multi-method, multi-level approach of combining cognitive, behavioral, and physiological measures in order to determine how to best operationalize and model dynamic team composition and performance as well as understand the interaction between multiple levels of analysis. We plan to integrate multiple theoretical perspectives into a nomological network for the assessment of CAL.
The Gaia-ESO Survey: Stellar radii in the young open clusters NGC 2264, NGC 2547 and NGC 2516
Creators: name: Jackson, R. J.
name: Jeffries, R. D.
name: Randich, S.
name: Bragaglia, A.
name: Carraro, G.
name: Costado, M. T.
name: Flaccomio, E.
name: Lanzafame, A. C.
name: Lardo, C.
name: Monaco, L.
name: Morbidelli, L.
name: Smiljanic, R.
name: Zaggia, S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Rapidly rotating, low-mass members of eclipsing binary systems have measured radii significantly larger than predicted by standard models. It has been proposed that magnetic activity is responsible for radius inflation. By estimating the radii of low-mass stars in three young clusters (NGC 2264, NGC 2547, NGC 2516, with ages of 5, 35 and 140 Myr respectively), we aim to establish whether similar radius inflation is seen in single, magnetically active stars. We use radial velocities from the Gaia-ESO Survey (GES) and published photometry to establish cluster membership and combine GES measurements of vsini with published rotation periods to estimate average radii for groups of fast-rotating cluster members as a function of their luminosity and age. The average radii are compared with the predictions of both standard evolutionary models and variants that include magnetic inhibition of convection and starspots. At a given luminosity, the stellar radii in NGC 2516 and NGC 2547 are larger than predicted by standard evolutionary models at the ages of these clusters. The discrepancy is least pronounced and not significant ~10 percent) in ZAMS stars with radiative cores, but more significant in lower-mass, fully convective pre main-sequence cluster members, reaching 30+/-10 percent. The uncertain age and distance of NGC 2264 preclude a reliable determination of any discrepancy for its members. The median radii we have estimated for low-mass fully convective stars in the older clusters are inconsistent (at the 2-3 sigma level) with non-magnetic evolutionary models and more consistent with models that incorporate the effects of magnetic fields or dark starspots. The available models suggest this requires either surface magnetic fields exceeding 2.5 kG, spots that block about 30 per cent of the photospheric flux, or a more moderate combination of both. [Abridged]
description: 12 pages. Accepted for publication in Astronomy & Astrophysics
title: MDCT enterography a new diagnostic tool for gastrointestinal tuberculosis: an initial experience
Creators: name: Bhatt , Shuchi
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Gastrointestinal tract
subject: Abdomen
subject: Lymph nodes
subject: CT
subject: Computer Applications-3D
subject: Contrast agent-oral
subject: Tropical diseases

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Gastrointestinal (GI) tuberculosis is an important extra-pulmonary manifestation of tuberculosis and constitutes a major health problem in the developing world. Its incidence is also on a rise in the Western world with the increased in HIV cases and...
title: Sunny-side-up egg sign: a characteristic appearance of breast cancer after radiofrequency ablation on MRI
Creators: name: Funatsu, Hiroyuki
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Cancer
subject: Ablation procedures
subject: MR
subject: MR-Diffusion/Perfusion
subject: Breast

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Breast cancer is the most common cancer worldwide in women [1]. With an implementation of mammography screening, number of patients with early stage cancer has doubled [2]. Surgical excision with or without systemic therapy is a mainstay for such...
Generalized interactions supported on hypersurfaces
Creators: name: Exner, Pavel
name: Rohleder, Jonathan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Spectral Theory (math.SP)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We analyze a family of singular Schrödinger operators with local singular interactions supported by a hypersurface $Σ\subset \mathbb{R}^n, n \ge 2$, being the boundary of a Lipschitz domain, bounded or unbounded, not necessarily connected. At each point of $Σ$ the interaction is characterized by four real parameters, the earlier studied case of $δ$- and $δ'$-interactions being particular cases. We discuss spectral properties of these operators and derive operator inequalities between those referring to the same hypersurface but different couplings and describe their implications for spectral properties.
Apart and a Part: Reading the Art of Susan MacWilliam in Context
Creators: name: White, Amy
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: In this thesis, I argue the work of Belfast-based artist Susan MacWilliam can be read meaningfully as part of the social, political and cultural context of Northern Ireland since 1969, the year in which the artist was born and also the start of the violent conflict commonly known as The Troubles. In 1998, when the Belfast Agreement (otherwise known as the Good Friday Agreement) was concluded, MacWilliam began working with themes of occult and paranormal practice and research, which has remained at the center of her practice to this day. Despite her claim not to produce politically-inflected art, my thesis examines the discourse and cultural production surrounding The Troubles and uncovers a matrix of trace thematics that permeates MacWilliam's work and recurs in a range of cultural forms and texts. Such recurrent themes include: death, grief, loss, and mourning; haunting and hauntedness; and questions of belief, truth and contested meanings.
title: Jahresbericht / Technische Universität Dortmund, Lehrstuhl für Energiesysteme und Energiewirtschaft 2010
title: Annual Report
titleType: AlternativeTitle
Creators: name: (:Unkn) Unknown
Publisher: name: Technische Universität Dortmund, Lehrstuhl für Energiesysteme und Energiewirtschaft
Year: 2011
Subjects: subject: Jahresbericht
subject: Annual Report
subject: 624

description: Jahresbericht / Technische Universität Dortmund, Lehrstuhl für Energiesysteme und Energiewirtschaft;2010
title: Safety and efficacy of landiolol, ultra short-acting selective β1 blocker, for coronary CT angiography with 256-slice CT with 0.27sec/rotation speed, to reduce radiation dose and improve image quality in the patients with heart rate more than 70 bpm
Creators: name: Saruya, Shinji
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Cardiac
subject: CT-Angiography
subject: Diagnostic procedure

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Landiolol for injection is a ultra short-acting selective β1 blocker, approved for the coronary CTA in Japan in Sep. 2011. The purpose is to evaluate the safety and efficacy of heart rate(HR) reduction by intravenous landiolol in patients who are...
title: A study about associated MDCT
Creators: name: Yong, Chen
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Abdomen
subject: Gastrointestinal tract
subject: CT
subject: Staging
subject: Lymphoma

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Toinvestigatetherelevantcharacteristicfindingsofgastriccarcinomawith pathologicalcorrelationofMDCTimageswhichareassociatedwithLymph NodeMetastasisandtoprovidetheevidencefor clinicianstomakea...
What Powers the 3000-Day Light Curve of SN 2006gy?
Creators: name: Fox, Ori D.
name: Smith, Nathan
name: Ammons, S. Mark
name: Andrews, Jennifer
name: Bostroem, K. Azalee
name: Cenko, S. Bradley
name: Clayton, Geoffrey C.
name: Dwek, Eli
name: Filippenko, Alexei V.
name: Gallagher, Joseph S.
name: Kelly, Patrick L.
name: Mauerhan, Jon C.
name: Miller, Adam M.
name: Van Dyk, Schuyler D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: SN 2006gy was the most luminous SN ever observed at the time of its discovery and the first of the newly defined class of superluminous supernovae (SLSNe). The extraordinary energetics of SN 2006gy and all SLSNe (>10^51 erg) require either atypically large explosion energies (e.g., pair-instability explosion) or the efficient conversion of kinetic into radiative energy (e.g., shock interaction). The mass-loss characteristics can therefore offer important clues regarding the progenitor system. For the case of SN 2006gy, both a scattered and thermal light echo from circumstellar material (CSM) have been reported at later epochs (day ~800), ruling out the likelihood of a pair-instability event and leading to constraints on the characteristics of the CSM. Owing to the proximity of the SN to the bright host-galaxy nucleus, continued monitoring of the light echo has not been trivial, requiring the high resolution offered by the Hubble Space Telescope (HST) or ground-based adaptive optics (AO). Here we report detections of SN 2006gy using HST and Keck AO at ~3000 days post-explosion and consider the emission mechanism for the very late-time light curve. While the optical light curve and optical spectral energy distribution are consistent with a continued scattered-light echo, a thermal echo is insufficient to power the K'-band emission by day 3000. Instead, we present evidence for late-time infrared emission from dust that is radiatively heated by CSM interaction within an extremely dense dust shell, and we consider the implications on the CSM characteristics and progenitor system.
description: Submitted to MNRAS, 14 pages
PDA Appendix
Creators: name: Blair, Karen
name: Holmberg, Diane
name: Hoskin, Rhea
name: Marr, Allison
name: McKenna, Odessa
name: Hudson, Chelsea
Publisher: name: Open Science Framework
Year: 2022

description: This document contains a description and/or copy of all relevant measures used in this program of research. The individual pre-registrations make reference to this appendix.
Isotropic and Anisotropic Regimes of the Field-Dependent Spin Dynamics in Sr2IrO4: Raman Scattering Studies
Creators: name: Gim, Y.
name: Sethi, A.
name: Zhao, Q.
name: Mitchell, J. F.
name: Cao, G.
name: Cooper, S. L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A major focus of experimental interest in Sr2IrO4 has been to clarify how the magnetic excitations of this strongly spin-orbit coupled system differ from the predictions of anisotropic 2D spin-1/2 Heisenberg model and to explore the extent to which strong spin-orbit coupling affects the magnetic properties of iridates. Here, we present a high-resolution inelastic light (Raman) scattering study of the low energy magnetic excitation spectrum of Sr2IrO4 and doped Eu-doped Sr2IrO4 as functions of both temperature and applied magnetic field. We show that the high-field (H>1.5 T) in-plane spin dynamics of Sr2IrO4 are isotropic and governed by the interplay between the applied field and the small in-plane ferromagnetic spin components induced by the Dzyaloshinskii-Moriya interaction. However, the spin dynamics of Sr2IrO4 at lower fields (H<1.5 T) exhibit important effects associated with interlayer coupling and in-plane anisotropy, including a spin-flop transition at Hc in Sr2IrO4 that occurs either discontinuously or via a continuous rotation of the spins, depending upon the in-plane orientation of the applied field. These results show that in-plane anisotropy and interlayer coupling effects play important roles in the low-field magnetic and dynamical properties of Sr2IrO4.
description: 8 pages, 4 figures, submitted
title: MDCT evaluation of acetabular fractures revisited.
Creators: name: Gupta, Saurav
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Musculoskeletal bone
subject: CT
subject: Diagnostic procedure
subject: Trauma

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: 1.Review acetabular imaging anatomy on MDCT 2.Describe imaging technique 3.Illustrate spectrum of MDCT imaging findings in acetabular fractures and their classification system.4.Present associated injuries and their significance to patient...
Verbera, catenae, concubitus: slaves, violence and vulnerability in Ovid's Amores
Creators: name: De Boer, Katherine R.
Publisher: name: University of North Carolina at Chapel Hill
Year: 2010

description: This thesis investigates two anomalous factors in Ovid's Amores that differentiate this work from the rest of Roman elegiac poetry: the large and varied cast of slave characters who interact with the poetry's speaker, the amator, and the speaker's focus on the female body. It argues that these factors are related: by juxtaposing the desired body of the female love-object with the brutalized bodies of slaves, Ovid exposes the reality of the elegiac woman's social inferiority to the amator and her consequent physical vulnerability to violence at his hands.
The AU Mic Debris Disk: far-infrared and submillimeter resolved imaging
Creators: name: Matthews, Brenda C.
name: Kennedy, Grant
name: Sibthorpe, Bruce
name: Holland, Wayne
name: Booth, Mark
name: Kalas, Paul
name: MacGregor, Meredith
name: Wilner, David
name: Vandenbussche, Bart
name: Olofsson, Göran
name: Blommaert, Joris
name: Brandeker, Alexis
name: Dent, W. R. F.
name: de Vries, Bernard L.
name: Di Francesco, James
name: Fridlund, Malcolm
name: Graham, James R.
name: Greaves, Jane
name: Heras, Ana M.
name: Hogerheijde, Michiel
name: Ivison, R. J.
name: Pantin, Eric
name: Pilbratt, Göran L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present far-infrared and submillimeter maps from the Herschel Space Observatory and the James Clerk Maxwell Telescope of the debris disk host star AU Microscopii. Disk emission is detected at 70, 160, 250, 350, 450, 500 and 850 micron. The disk is resolved at 70, 160 and 450 micron. In addition to the planetesimal belt, we detect thermal emission from AU Mic's halo for the first time. In contrast to the scattered light images, no asymmetries are evident in the disk. The fractional luminosity of the disk is $3.9 \times 10^{-4}$ and its mm-grain dust mass is 0.01 MEarth (+/- 20%). We create a simple spatial model that reconciles the disk SED as a blackbody of 53 +/- 2 K (a composite of 39 and 50 K components) and the presence of small (non-blackbody) grains which populate the extended halo. The best fit model is consistent with the "birth ring" model explored in earlier works, i.e., an edge-on dust belt extending from 8.8-40 AU, but with an additional halo component with an $r^{-1.5}$ surface density profile extending to the limits of sensitivity (140 AU). We confirm that AU Mic does not exert enough radiation force to blow out grains. For stellar mass loss rates of 10-100x solar, compact (zero porosity) grains can only be removed if they are very small, consistently with previous work, if the porosity is 0.9, then grains approaching 0.1 micron can be removed via corpuscular forces (i.e., the stellar wind).
description: accepted to the Astrophysical Journal
Theoretical description of slow non-monotonic relaxation processes in Al-Y melts
Creators: name: Vasin, M. G.
name: Menshikova, S. G.
name: Ivshin, M. D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The slow non-monotonic relaxation processes, which have been recently fixed in Al-Y melts, are described theoretically. The theoretical description is based on the Cahn-Hilliard theory and functional methods of non-equilibrium dynamics. In terms of the suggested approach the reasons of this relaxation kinetics are non-linearity of the system near to the liquidus line, which sharply increases with Y concentration, and strong initial heterogeneity of the melt on the concentration of Y atoms. According to our analysis one can conclude that the non-monotonic temporal dependence of viscosity is caused by the Ostwald ripening processes in the rich in yttrium areas.
description: Submitted in Physica A
Cosmic-ray acceleration in young protostars
Creators: name: Padovani, Marco
name: Hennebelle, Patrick
name: Marcowith, Alexandre
name: Ferrière, Katia
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The main signature of the interaction between cosmic rays and molecular clouds is the high ionisation degree. This decreases towards the densest parts of a cloud, where star formation is expected, because of energy losses and magnetic effects. However recent observations hint to high levels of ionisation in protostellar systems, therefore leading to an apparent contradiction that could be explained by the presence of energetic particles accelerated within young protostars. Our modelling consists of a set of conditions that has to be satisfied in order to have an efficient particle acceleration through the diffusive shock acceleration mechanism. We find that jet shocks can be strong accelerators of protons which can be boosted up to relativistic energies. Another possibly efficient acceleration site is located at protostellar surfaces, where shocks caused by impacting material during the collapse phase are strong enough to accelerate protons. Our results demonstrate the possibility of accelerating particles during the early phase of a proto-Solar-like system and can be used as an argument to support available observations. The existence of an internal source of energetic particles can have a strong and unforeseen impact on the star and planet formation process as well as on the formation of pre-biotic molecules.
description: Accepted by Astronomy and Astrophysics
'Americanization' Versus 'Europeanization' in Italian Foreign Policy
Creators: name: Sgueglia, James Patrick
Publisher: name: University of North Carolina at Chapel Hill
Year: 2011

description: Italy's foreign policy since the end of the Cold War is routinely characterized as inconsistent and weak, when compared to the foreign policies of its European counterparts. It is in this context that Italy is faced with the ever-present choice of linking its foreign policy to the framework of the European Union or adhering to its traditionally strong relationship with the United States. Critics argue that this division is rather obvious, manifesting itself along ideological lines, with the centre-left in Italy arguing for a more Europeanist direction and the centre-right a more Atlanticist direction in Italian foreign policy. However, my analysis will show that although Italy has been somewhat active in the international arena during this period, domestic political fragmentation and inherent institutional weakness effectively limits Italy from developing a clear and coherent direction in foreign policy and in the end, no clear-cut division really exists at all.
ICU Patient Deterioration prediction: a Data-Mining Approach
Creators: name: AlNuaimi, Noura
name: Masud, Mohammad M
name: Mohammed, Farhan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computers and Society (cs.CY)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: A huge amount of medical data is generated every day, which presents a challenge in analysing these data. The obvious solution to this challenge is to reduce the amount of data without information loss. Dimension reduction is considered the most popular approach for reducing data size and also to reduce noise and redundancies in data. In this paper, we investigate the effect of feature selection in improving the prediction of patient deterioration in ICUs. We consider lab tests as features. Thus, choosing a subset of features would mean choosing the most important lab tests to perform. If the number of tests can be reduced by identifying the most important tests, then we could also identify the redundant tests. By omitting the redundant tests, observation time could be reduced and early treatment could be provided to avoid the risk. Additionally, unnecessary monetary cost would be avoided. Our approach uses state-ofthe- art feature selection for predicting ICU patient deterioration using the medical lab results. We apply our technique on the publicly available MIMIC-II database and show the effectiveness of the feature selection. We also provide a detailed analysis of the best features identified by our approach.
description: 16 pages, 3 figures, 10 tables, confeence
title: Time-SLIP MR Hepatic Arteriography using 3T-MRI: Initial Experiences
Creators: name: Yoshikawa, Takeshi
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Abdomen
subject: Liver
subject: Vascular
subject: MR
subject: MR-Angiography
subject: Technology assessment
subject: Imaging sequences
subject: Technical aspects
subject: Image verification
subject: Cancer
subject: Cirrhosis

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The assessment and classification of anatomy of hepatic artery (HA) is an essential step for both diagnosis and management of various diseases in the upper abdomen (1). Currently, contrast-enhanced CT angiography is used for this purpose....
The Scale-Dependence of Halo Assembly Bias
Creators: name: Sunayama, Tomomi
name: Hearin, Andrew P.
name: Padmanabhan, Nikhil
name: Leauthaud, Alexie
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The two-point clustering of dark matter halos is influenced by halo properties besides mass, a phenomenon referred to as halo assembly bias. Using the depth of the gravitational potential well, $V_{\rm max}$, as our secondary halo property, in this paper we present the first study of the scale-dependence assembly bias. In the large-scale linear regime, $r\geq10h^{-1}{\rm Mpc},$ our findings are in keeping with previous results. In particular, at the low-mass end ($M_{\rm vir}
description: 7 pages, 4 figures, submitted to MNRAS
Screen Content Image Segmentation Using Sparse-Smooth Decomposition
Creators: name: Minaee, Shervin
name: Abdolrashidi, Amirali
name: Wang, Yao
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Sparse decomposition has been extensively used for different applications including signal compression and denoising and document analysis. In this paper, sparse decomposition is used for image segmentation. The proposed algorithm separates the background and foreground using a sparse-smooth decomposition technique such that the smooth and sparse components correspond to the background and foreground respectively. This algorithm is tested on several test images from HEVC test sequences and is shown to have superior performance over other methods, such as the hierarchical k-means clustering in DjVu. This segmentation algorithm can also be used for text extraction, video compression and medical image segmentation.
description: Asilomar Conference on Signals, Systems and Computers, IEEE, 2015, (to Appear)
More than a sport: an in-depth exploration of running
Creators: name: O'Donnell, Patrick
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: The sport of running has boomed during the last 20 years. The number of runners completing road races has gone from 3.7 million in 1987 to 8.9 million in 2007. In five articles, this master's thesis examines various aspects of the sport. The first article is about a team of women runners in Chapel Hill that helps raise money for health and education projects in a small village in Tanzania. The second article discusses severe running injuries and how runners deal with them. The third article is an examination of running shoes. The fourth article tells the story of a woman who uses running to help alleviate the symptoms of depression. The fifth article is a behind-the-scenes look at how a road race is organized. The thesis aims to explore running in-depth and show that it is more than just a form of exercise.
title: Pretreatment dynamic contrast-enhanced MRI (DCE-MRI) of the primary site in locally advanced nasopharyngeal carcinoma (NPC) does not predict long-term response to definitive chemoradiation.
Creators: name: Bhatia, Kunwar
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Neoplasia
subject: Contrast agent-intravenous
subject: MR-Diffusion/Perfusion
subject: Head and neck

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Nasopharyngeal cancer (NPC) is a radiosensitive cancer. Approximately 50% of NPC patients have loco-regionally advanced disease, i.e. primary site and cervical lymph nodal involvement, at presentation. Control rates of this subgroup have improved...
Florigens and antiflorigens: a molecular genetic understanding
Creators: name: Matsoukas, Ianis G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences
subject: 00-XX, 0-XX

description: Florigens, the leaf-derived signals that initiate flowering, have been described as mysterious, elusive and the Holy Grail of plant biology.
description: 16 pages, 3 figures, 2 tables, journal. arXiv admin note: text overlap with arXiv:1210.6605
A new approach to the problem of dynamical quarks in numerical simulations of lattice QCD
Creators: name: Luescher, Martin
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 1994
Subjects: subject: 530
subject: fermion: lattice field theory
subject: gauge field theory: SU(3)
subject: quantum chromodynamics
subject: flavor: 2
subject: field theory: local
subject: boson: field theory
subject: numerical methods: Monte Carlo

description: Lattice QCD with an even number of degenerate quark flavours is shown to be a limit of a local bosonic field theory. The action of the bosonic theory is real and bounded from below so that standard simulation algorithms can be expected to apply. The feasibility of such calculations is discussed, but no practical tests have yet been made.
Imaging thermal conductivity with nanoscale resolution using a scanning spin probe
Creators: name: Laraoui, Abdelghani
name: Aycock-Rizzo, Halley
name: Gao, Yang
name: Lu, Xi
name: Riedo, Elisa
name: Meriles, Carlos A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The ability to probe nanoscale heat flow in a material is often limited by lack of spatial resolution. Here, we use a diamond-nanocrystal-hosted nitrogen-vacancy centre attached to the apex of a silicon thermal tip as a local temperature sensor. We apply an electrical current to heat up the tip and rely on the NV to monitor the thermal changes the tip experiences as it is brought into contact with surfaces of varying thermal conductivity. With the aid of a combined AFM/confocal setup, we image phantom microstructures with nanoscale resolution, and attain excellent agreement between the thermal conductivity and topographic maps. The small mass and high thermal conductivity of the diamond host make the time response of our technique short, which we demonstrate by monitoring the tip temperature upon application of a heat pulse. Our approach promises multiple applications, from the investigation of phonon dynamics in nanostructures to the characterization of heterogeneous phase transitions and chemical reactions in various solid-state systems.
title: The value of CT examination in patients with suspected internal herniation following gastric bypass at Oslo University Hospital (OUS)
Creators: name: Waldén, Mathias
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: CT
subject: Gastrointestinal tract
subject: Complications
subject: Hernia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Treatment of morbid obesity using Roux-en-Y gastric bypass (RYGB) has gained wide acceptance The potential serious complication of internal herniation, IH, has an incidence of approximately 2.5 % in short term series. Signs and symptoms may be...
Falling fertility rates: new challenges to the welfare state
Creators: name: Vos, Allison E.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: One of the biggest issues currently plaguing many advanced industrialized countries is the persistence of low fertility rates. Decreasing fertility rates threaten economic growth, while government budgets have to accommodate more pension and health services as the number of adults of working age who contribute to older generations' pensions diminishes. I examine the determinants of fertility levels at the national level of seventeen OECD countries. Specifically, I perform a pooled time series analysis covering the time period 1990-1999. The analysis yields evidence that the types of state policies - active labor market programs, family-friendly policies, and employment protection laws - play a significant role in either helping or hindering fertility levels. I find that Active Labor Market Policies and generous work and family policies encourage higher fertility rates, while the presence of Employment Protection Legislation - rules concerning hiring and firing - hinders the growth of fertility rates.
title: Coronary artery stenosis and cardiac perfusion defects. Beyond de anatomy.
Creators: name: Oca Pernas, Roque
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Arteriosclerosis
subject: Diagnostic procedure
subject: MR
subject: CT
subject: Cardiac

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: INTRODUCTION: SPECT and MRI are gold standard methods for the detection of myocardial perfusion defects at daily clinical practice. On the other hand,Coronariography CT hasbeen provedto be a reliable technique to rule out coronary stenosis with...
Cell assembly dynamics of sparsely-connected inhibitory networks: a simple model for the collective activity of striatal projection neurons
Creators: name: Angulo-Garcia, David
name: Berke, Joshua D.
name: Torcini, Alessandro
Publisher: name: arXiv
Year: 2015
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Striatal projection neurons form a sparsely-connected inhibitory network, and this arrangement may be essential for the appropriate temporal organization of behavior. Here we show that a simplified, sparse inhibitory network of Leaky-Integrate-and-Fire neurons can reproduce some key features of striatal population activity, as observed in brain slices [Carrillo-Reid et al., J. Neurophysiology 99 (2008) 1435{1450]. In particular we develop a new metric to determine the conditions under which sparse inhibitory networks form anti-correlated cell assemblies with time-varying activity of individual cells. We found that under these conditions the network displays an input-specific sequence of cell assembly switching, that effectively discriminates similar inputs. Our results support the proposal [Ponzi and Wickens, PLoS Comp Biol 9 (2013) e1002954] that GABAergic connections between striatal projection neurons allow stimulus-selective, temporally-extended sequential activation of cell assemblies. Furthermore, we help to show how altered intrastriatal GABAergic signaling may produce aberrant network-level information processing in disorders such as Parkinson's and Huntington's diseases.
description: 22 pages, 9 figures
Chinese Folk and Literary Traditions in the Buddhist Monastery Traveling Genre: Racemaking Allegory with Informal Language Modes and Patterns in The Journey to the West 西游记 and The Monkey and the Monk 獼猴王
Creators: name: Di Tong, Xiao
Publisher: name: Zenodo
Year: 2023
Subjects: Religion
Buddhism
Theology

description: An old missionary student of China once remarked that Chinese history is “remote, monotonous, obscure, and-worst of all-there is too much of it.” China has the longest continuous history of any country in the world—3,500 years of written history. And even 3,500 years ago China's civilization was old! My paper examines The Journey to the West 西游记 and The Monkey and the Monk 獼猴王, one of the greatest Chinese classics published during the Ming Dynasty. It is a critical analysis of the Russian Order of the Moscow Patriarchate (Русская православная церковь) and an extended account, set in China, 7th century AD of the legendary pilgrimage of Tang Dynasty Buddhist monk Xuanzang who traveled to the "Western Regions"—geography and economy of "Slav and Slavic Romanticism" in and between the places along the route, to obtain Buddhist sūtra (sacred texts) and return after many trials and much suffering. The four main characters, Sun Wukong or Monkey King, Tang Sanzang or Tripitaka, Zhu Bajie or Pigsy, Sha Wujing or Sandy, were recorded in Great Tang Records in the Western Regions for their 19-year journey of Chang’an in Chinese Confucius and Taoist historiography. This is an early draft of my third book, in which I present four Chinese folk and literary traditions—homophobia, ethnocentrism/ethnocentricity, parochialism, and racism—that challenge the history of racial formation.
description: Judaic Studies, literary imagination, other parts of the world and ideas, religious and scientific epistemologies, visual and material cultures, vernacular quest, Oriental orthodoxy, Theology, Divinity & Religious Studies, traditional poetry and poetics, Maxine Hong Kingston's Tripmaster Monkey, Italy
title: Differentiation of posttreatment effects from glioma recurrence using arterial spin labeling, susceptibility-weighted imaging, proton MR spectroscopy and diffusion-weighted imaging as non-contrast brain MRI at 3 Tesla.
Creators: name: Vasić, Brankica
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Neuroradiology brain
subject: Oncology
subject: MR
subject: MR-Diffusion/Perfusion
subject: MR-Spectroscopy
subject: Imaging sequences
subject: Neoplasia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The purpose of this study was to determine the contribution of arterial spin labeling (ASL), susceptibility-weighted imaging (SWI), proton MR spectroscopy (1H-MRS) and diffusion-weighted imaging (DWI) metrics in the differentiation of posttreatment...
Proximity induced quantum anomalous Hall effect in graphene/EuO hetero-structures
Creators: name: Su, Shanshan
name: Barlas, Yafis
name: Lake, Roger K.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In a heterostructure of graphene and the ferromagnetic insulator EuO, the Eu atoms induce proximity exchange and inter-valley interactions in the graphene layer. Constrained by the lattice symmetries, and guided by ab initio calculations, a model Hamiltonian is constructed that describes the low-energy bands. Band parameters such as proximity induced exchange splitting, spin orbit coupling, and inter-valley interaction are determined. Calculations of the Chern number identify the conditions under which the hetero-structures exhibit topologically non-trivial bands that give rise to the quantum anomalous Hall effect with a Hall conductivity of $σ_{xy} = 2 e^2/h$.
description: 8 pages, 7 figures
Writing in red: the East German Writers Union and the role of literary intellectuals in the German Democratic Republic, 1971-90
Creators: name: Goldstein, Thomas William
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Since its creation in 1950 as a subsidiary of the Cultural League, the East German Writers Union embodied a fundamental tension, one that was never resolved during the course of its forty-year existence. The union served two masters - the state and its members - and as such, often found it difficult fulfilling the expectations of both. In this way, the union was an expression of a basic contradiction in the relationship between writers and the state: the ruling Socialist Unity Party (SED) demanded ideological compliance, yet these writers also claimed to be critical, engaged intellectuals. This dissertation examines how literary intellectuals and SED cultural officials contested and debated the differing and sometimes contradictory functions of the Writers Union and how each utilized it to shape relationships and identities within the literary community and beyond it. The union was a crucial site for constructing a group image for writers, both in terms of external characteristics (values and goals for participation in wider society) and internal characteristics (norms and acceptable behavioral patterns guiding interactions with other union members). In examining the Writers Union, this project speaks to ongoing historical debates about the institutional means through which writers interacted with the dictatorship as well as debates on the nature of the East German dictatorship more generally. Its methods probe two interrelated topics: the significance of the Writers Union as a professional institution for the lives of its members, and the role of East German writers as public intellectuals under a socialist dictatorship. In the end, there were always powerful disincentives to using occasions provided by the union to articulate criticisms of socialism in East Germany, but by the late 1980s, writers dissatisfied with certain aspects of real existing socialism had found new ways to express their concerns through the union, and in the process expanded the limits of permissible speech under the dictatorship.
title: The diagnostic role of DW-MRI in acute pancreatitis: assessment of the clinical outcome
Creators: name: Salik, Aysun
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Pancreas
subject: MR-Diffusion/Perfusion
subject: Diagnostic procedure
subject: Acute
subject: Inflammation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Acute pancreatitis (AP) is an acute inflammatory process of the pancreatic tissue which can be divided into two subtypes: interstitial edematous and necrotizing pancreatitis. Once the diagnosis of acute pancreatitis is established, the patient...