cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The GJ 436 System: Directly Determined Astrophysical Parameters of an M-Dwarf and Implications for the Transiting Hot Neptune
Creators: name: von Braun, Kaspar
name: Boyajian, Tabetha S.
name: Kane, Stephen R.
name: Hebb, Leslie
name: van Belle, Gerard T.
name: Farrington, Chris
name: Ciardi, David R.
name: Knutson, Heather A.
name: Brummelaar, Theo A. ten
name: Lopez-Morales, Mercedes
name: McAlister, Harold A.
name: Schaefer, Gail
name: Ridgway, Stephen
name: Cameron, Andrew Collier
name: Goldfinger, P. J.
name: Turner, Nils H.
name: Sturmann, Laszlo
name: Sturmann, Judit
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The late-type dwarf GJ 436 is known to host a transiting Neptune-mass planet in a 2.6-day orbit. We present results of our interferometric measurements to directly determine the stellar diameter ($R_{\star} = 0.455 \pm 0.018 R_{\odot}$) and effective temperature ($T_{\rm EFF} = 3416 \pm 54$ K). We combine our stellar parameters with literature time-series data, which allows us to calculate physical and orbital system parameters, including GJ 436's stellar mass ($M_{\star} = 0.507^{+ 0.071}_{- 0.062} M_{\odot}$) and density ($ρ_* = 5.37^{+ 0.30}_{- 0.27} ρ_\odot$), planetary radius ($R_{p} = 0.369^{+ 0.015}_{- 0.015} R_{Jupiter}$), planetary mass ($M_{p} = 0.078^{+ 0.007}_{- 0.008} M_{Jupiter}$), implying a mean planetary density of $ρ_{p} = 1.55^{+ 0.12}_{- 0.10} ρ_{Jupiter}$. These values are generally in good agreement with previous literature estimates based on assumed stellar mass and photometric light curve fitting. Finally, we examine the expected phase curves of the hot Neptune GJ 436b, based on various assumptions concerning the efficiency of energy redistribution in the planetary atmosphere, and find that it could be constrained with {\it Spitzer} monitoring observations.
description: 10 pages, 4 tables, 9 figures; accepted for publication in ApJ; incorporated referee's comments and associated changes
title: Selbstreguliertes Lernen mit digitalen Medien. Handreichung für Multiplikatorinnen und Multiplikatoren
title: DigitUS Handreichung
titleType: Subtitle
Creators: name: Reith, Sabrina
name: Arvaneh, Begüm
name: Bannert, Maria
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2022

description: Handreichung mit Überblick über verschiedene Materialien zum selbstregulierten Lernen mit digitalen Medien und Vorschlägen für den Einsatz dieser innerhalb einer Lerngemeinschaft (schulintern und schulübergreifend).
A Comment on Holographic Luttinger Theorem
Creators: name: Hashimoto, Koji
name: Iizuka, Norihiro
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Robustness of the Luttinger theorem for fermionic liquids is examined in holography. The statement of the Luttinger theorem, the equality between the fermion charge density and the volume enclosed by the Fermi surface, can be mapped to a Gauss's law in the gravity dual, a la Sachdev. We show that various deformations in the gravity dual, such as inclusion of magnetic fields, a parity-violating theta-term, dilatonic deformations, and higher-derivative corrections, do not violate the holographic derivation of the Luttinger theorem, as long as the theory is in a confining phase. Therefore a robustness of the theorem is found for strongly correlated fermions coupled with strongly coupled sectors which admit gravity duals. On the other hand, in the deconfined phase, we also show that the deficit appearing in the Luttinger theorem is again universal. It measures a total deficit which measures the charge of the deconfined ("fractionalized") fermions, independent of the deformation parameters.
description: 19 pages. v2: references and minor comments added
The Launois-Lenagan conjecture
Creators: name: Yakimov, Milen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Rings and Algebras (math.RA)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: Primary 16W20, Secondary 17B37, 20G42

description: In this note we prove the Launois-Lenagan conjecture on the classification of the automorphism groups of the algebras of quantum matrices R_q[M_n] of square shape for all positive integers n, base fields K, and deformation parameters q \in K^* which are not roots of unity.
description: 7 pages, AMS Latex, v. 2 contains a shorter proof of the result, minor changes in the final v.3
Three Generations in Minimally Extended Standard Models
Creators: name: Frampton, Paul H.
name: Ho, Chiu Man
name: Kephart, Thomas W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a class of minimally extended standard models with the gauge group $SU(3)_C \times SU(N)_L \times U(1)_X$ where for all $N \geq 3$, anomaly cancelation requires three generations. At low energy, we recover the Standard Model (SM), while at higher energies, there must exist quarks, leptons and gauge bosons with electric charges shifted from their SM values by integer multiples of the electron charge up to $ \pm [N/2] e$. Since the value N=5 is the highest $N$ consistent with QCD asymptotic freedom, we elaborate on the 3-5-1 model.
description: 9 pages, v3: version to appear in PLB
Additional file 2 of An SETD1A/Wnt/β-catenin feedback loop promotes NSCLC development
Creators: name: Wang, Rui
name: Liu, Jian
name: Li, Kai
name: Yang, Ganghua
name: Chen, Sisi
name: Wu, Jie
name: Xie, Xinming
name: Ren, Hong
name: Pang, Yamei
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Developmental Biology
subject: Cancer
subject: Computational Biology

description: Additional file 2: Table S2. The clinical and pathological information of patients included in this study.
title: Sylv. Aynscombe
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Sylv. Aynscombe as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
title: Decio Azzolini
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Decio Azzolini as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
A Generalized Theory of Varying Alpha
Creators: name: Barrow, John D.
name: Lip, Sean Z. W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we formulate a generalization of the simple Bekenstein-Sandvik-Barrow-Magueijo (BSBM) theory of varying alpha by allowing the coupling constant, ω, for the corresponding scalar field ψ to depend on ψ. We focus on the situation where ω is exponential in ψ and find the late-time behaviours that occur in matter-dominated and dark-energy dominated cosmologies. We also consider the situation when the background expansion scale factor of the universe evolves in proportion to an arbitrary power of the cosmic time. We find the conditions under which the fine structure `constant' increases with time, as in the BSBM theory, and establish a cosmic no-hair behaviour for accelerating universes. We also find the conditions under which the fine structure `constant' can decrease with time and compare the whole family of models with astronomical data from quasar absorption spectra.
description: 25 pages, 6 figures. Minor corrections and clarifications added. Final section on spatial variations removed so that the paper focuses exclusively on time-variation
Additional file 1 of An SETD1A/Wnt/β-catenin feedback loop promotes NSCLC development
Creators: name: Wang, Rui
name: Liu, Jian
name: Li, Kai
name: Yang, Ganghua
name: Chen, Sisi
name: Wu, Jie
name: Xie, Xinming
name: Ren, Hong
name: Pang, Yamei
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Developmental Biology
subject: Cancer
subject: Computational Biology

description: Additional file 1: Table S1. The oligonucleotides used in this study.
Scalar Three-point Functions in a CDL Background
Creators: name: Park, Daniel S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Motivated by the FRW-CFT proposal by Freivogel, Sekino, Susskind and Yeh, we compute the three-point function of a scalar field in a Coleman-De Luccia instanton background. We first compute the three-point function of the scalar field making only very mild assumptions about the scalar potential and the instanton background. We obtain the three-point function for points in the FRW patch of the CDL instanton and take two interesting limits; the limit where the three points are near the boundary of the hyperbolic slices of the FRW patch, and the limit where the three points lie on the past lightcone of the FRW patch. We expand the past lightcone three-point function in spherical harmonics. We show that the near boundary limit expansion of the three-point function of a massless scalar field exhibits conformal structure compatible with FRW-CFT when the FRW patch is flat. We also compute the three-point function when the scalar is massive, and explain the obstacles to generalizing the conjectured field-operator correspondence of massless fields to massive fields.
description: 42 pages + appendices, 10 figures; v2, v3: minor corrections
Ultrafast quantum random number generation based on quantum phase fluctuations
Creators: name: Xu, Feihu
name: Qi, Bing
name: Ma, Xiongfeng
name: Xu, He
name: Zheng, Haoxuan
name: Lo, Hoi-Kwong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A quantum random number generator (QRNG) can generate true randomness by exploiting the fundamental indeterminism of quantum mechanics. Most approaches to QRNG employ single-photon detection technologies and are limited in speed. Here, we propose and experimentally demonstrate an ultrafast QRNG at a rate over 6 Gb/s based on the quantum phase fluctuations of a laser operating near threshold. Moreover, we consider a potential adversary who has partial knowledge on the raw data and discuss how one can rigorously remove such partial knowledge with post-processing. We quantify the quantum randomness through min-entropy by modeling our system, and employ two extractors, Trevisan's extractor and Toeplitz-hashing, to distill the randomness, which is information-theoretically provable. The simplicity and high-speed of our experimental setup show the feasibility of a robust, low-cost, high-speed QRNG.
description: Published version
title: Jean Paul de La Roque (La Rocque)
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Jean Paul de La Roque (La Rocque) as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Probing the Intergalactic Magnetic Field with the Anisotropy of the Extragalactic Gamma-ray Background
Creators: name: Venters, Tonia M.
name: Pavlidou, Vasiliki
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The intergalactic magnetic field (IGMF) may leave an imprint on the angular anisotropy of the extragalactic gamma-ray background through its effect on electromagnetic cascades triggered by interactions between very high energy photons and the extragalactic background light. A strong IGMF will deflect secondary particles produced in these cascades and will thus tend to isotropize lower energy cascade photons, thereby inducing a modulation in the anisotropy energy spectrum of the gamma-ray background. Here we present a simple, proof-of-concept calculation of the magnitude of this effect and demonstrate that current Fermi data already seem to prefer non-negligible IGMF values. The anisotropy energy spectrum of the Fermi gamma-ray background could thus be used as a probe of the IGMF strength.
description: 11 pages, 4 figures, MN LaTeX style; accepted for publication in MNRAS
FRW in cosmological self-creation theory
Creators: name: Ramírez, Juan M.
name: Socorro, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 83D05

description: We use the Brans-Dicke theory from the framework of General Relativity (Einstein frame), but now the total energy momentum tensor fulfills the following condition $\rm ]_{;ν}=0$. We take as a first model the flat FRW metric and with the law of variation for Hubble's parameter proposal by Berman \cite{Berman}, we find solutions to the Einstein field equations by the cases: inflation ($γ=-1$), radiation ($γ=\{1}{3}$), stiff matter ($γ=1$). For the Inflation case the scalar field grows fast and depends strongly of the constant $\rm M_{γ=-1}$ that appears in the solution, for the Radiation case, the scalar stop its expansion and then decrease perhaps due to the presence of the first particles. In the Stiff Matter case, the scalar field is decreasing so for a large time, $ϕ\rightarrow0$. In the same line of classical solutions, we find an exact solution to the Einstein field equations for the stiff matter $(γ=1)$ and flat universe, using the Hamilton-Jacobi scheme.
description: 10 pages in latex, 4 figures
Galileons in the Sky
Creators: name: de Rham, Claudia
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We review the different frameworks in which Galileon scalar fields have been seen to emerge such an in DGP, New Massive Gravity and Ghost-free massive Gravity and emphasize their relation with the Lovelock invariant in braneworld models. The existence of a non-renormalization theorem for Galileon scalar fields makes them especially attractive candidates for inflation as well as for late-time acceleration. In particular we review the self-accelerating and degravitating branches of solutions present in Galileon models when arising from Massive Gravity and discuss their phenomenology.
description: References added, Typos corrected
Anomaly Equations and Intersection Theory
Creators: name: Park, Daniel S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Six-dimensional supergravity theories with N=(1,0) supersymmetry must satisfy anomaly equations. These equations come from demanding the cancellation of gravitational, gauge and mixed anomalies. The anomaly equations have implications for the geometrical data of Calabi-Yau threefolds, since F-theory compactified on an elliptically fibered Calabi-Yau threefold with a section generates a consistent six-dimensional N=(1,0) supergravity theory. In this paper, we show that the anomaly equations can be summarized by three intersection theory identities. In the process we also identify the geometric counterpart of the anomaly coefficients---in particular, those of the abelian gauge groups---that govern the low-energy dynamics of the theory. We discuss the results in the context of investigating string universality in six dimensions.
description: 29 pages + appendices, 8 figures; v2: minor corrections, references added; v3: minor corrections, reference added
title: Giovanni Laureati S.J.
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Giovanni Laureati S.J. as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
title: Friedrich Gregor Lautensack
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Friedrich Gregor Lautensack as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
title: Johann Peter von Lautensack
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Johann Peter von Lautensack as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Model tests of cluster separability in relativistic quantum mechanics
Creators: name: Keister, B. D.
name: Polyzou, W. N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A relativistically invariant quantum theory first advanced by Bakamjian and Thomas has proven very useful in modeling few-body systems. For three particles or more, this approach is known formally to fail the constraint of cluster separability, whereby symmetries and conservation laws that hold for a system of particles also hold for isolated subsystems. Cluster separability can be restored by means of a recursive construction using unitary transformations, but implementation is difficult in practice, and the quantitative extent to which the Bakamjian-Thomas approach violates cluster separability has never been tested. This paper provides such a test by means of a model of a scalar probe in a three-particle system for which (1) it is simple enough that there is a straightforward solution that satisfies Poincaré invariance and cluster separability, and (2) one can also apply the Bakamjian-Thomas approach. The difference between these calculations provides a measure of the size of the corrections from the Sokolov construction that are needed to restore cluster properties. Our estimates suggest that, in models based on nucleon degrees of freedom, the corrections that restore cluster properties are too small to effect calculations of observables.
description: 13 pages, 15 figures
title: CT-angiography of the congenital heart diseases associated with pathology of the pulmonary arteries in regards of optimization of proper treatment procedure selection.
Creators: name: Musayeva, Leyla
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cardiovascular system
subject: Paediatric
subject: Pulmonary vessels
subject: CT-Angiography
subject: CT
subject: Diagnostic procedure
subject: Computer Applications-3D
subject: Contrast agent-intravenous
subject: Congenital

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Current estimates range of the incidence of congenital heart disease is from 8 to 12 per 1 000 live births worldwide [1]. In Azerbaijan about 800-1000 babies born with congenital cardiovascular anomalies every year. Echocardiography is method of...
Accelerating vacua in Gauss-Bonnet gravity
Creators: name: Xu, Wei
name: Meng, Kun
name: Zhao, Liu
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Accelerating vacua with maximally symmetric, but not necessarily spherical, sections for Einstein and Gauss-Bonnet gravities in generic dimensions are obtained. The acceleration parameter has the effect of shifting the cosmological constants in Einstein gravity, whereas in Gauss-Bonnet gravity the effective cosmological constants remain the same in the presence of acceleration as in the case without acceleration.
description: 8 pages. V2: revised with more references
title: The radiological spectrum of atypical lung infection in ICU patients
Creators: name: Sethi, Princy
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Lung
subject: CT
subject: Education
subject: Infection

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1. To identify the common bacterial, viral, fungal pathogens causing atypical lung infection in ICU patients in a tertiary care hospital in Delhi, India. 2. To correlate CT patterns with the clinical presentation, biochemical and microbiological...
Exact relaxation dynamics of a localized many-body state in the 1D bose gas
Creators: name: Sato, Jun
name: Kanamoto, Rina
name: Kaminishi, Eriko
name: Deguchi, Tetsuo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Through an exact method we numerically solve the time evolution of the density profile for an initially localized state in the one-dimensional bosons with repulsive short-range interactions. We show that a localized state with a density notch is constructed by superposing one-hole excitations. The initial density profile overlaps the plot of the squared amplitude of a dark soliton in the weak coupling regime. We observe the localized state collapsing into a flat profile in equilibrium for a large number of particles such as N=1000. The relaxation time increases as the coupling constant decreases, which suggests the existence of off-diagonal long-range order. We show a recurrence phenomenon for a small number of particles such as N=20.
description: 5 pages, 5 figures
title: The Hunter Experience with TACE: Correlation of Tumour Imaging Response (Based on EASL, mRECIST, and Novel Area Approximation Method) With Survival Following TACE in the Hunter New England Local Health District.
Creators: name: Hennessy, Grace
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Interventional vascular
subject: Abdomen
subject: Liver
subject: Catheter arteriography
subject: MR
subject: Chemoembolisation
subject: Cancer
subject: Cirrhosis

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Background Hepatocellular carcinoma (HCC) is a common cause of morbidity and mortality worldwide, accounting for approximately 5.4% of all cancers (1,2). The incidence and aetiology of hepatocellular carcinomas varies (affected by underlying rates...
title: FEGNOMASHIC: a classic never goes out of style
Creators: name: Costa, Ana Sofia
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Bones
subject: Musculoskeletal bone
subject: Conventional radiography
subject: Education
subject: Pathology

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To illustrate and describe the features of FEGNOMASHIC lesions on plain radiographs; To demonstrate the important role of conventional radiology as the first-line imaging modality in the approach of a lucent bone...
Universal low-temperature crossover in two-channel Kondo models
Creators: name: Mitchell, Andrew K.
name: Sela, Eran
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: An exact expression is derived for the electron Green function in two-channel Kondo models with one and two impurities, describing the crossover from non-Fermi liquid (NFL) behavior at intermediate temperatures to standard Fermi liquid (FL) physics at low temperatures. Symmetry-breaking perturbations generically present in experiment ensure the standard low-energy FL description, but the full crossover is wholly characteristic of the unstable NFL state. Distinctive conductance lineshapes in quantum dot devices should result. We exploit a connection between this crossover and one occurring in a classical boundary Ising model to calculate real-space electron densities at finite temperature. The single universal finite-temperature Green function is then extracted by inverting the integral transformation relating these Friedel oscillations to the t matrix. Excellent agreement is demonstrated between exact results and full numerical renormalization group calculations.
description: 26 pages, 14 figures: updated version including new a section and figure comparing exact results to finite-temperature numerical renormalization group calculations
title: Theranostic properties of iodized oil for transarterial embolization in combination with CT-guided irreversible electroporation in the treatment of hepato cellular carcinoma < 2cm
Creators: name: Pan, Feng
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Abdomen
subject: Liver
subject: Contrast agents
subject: CT
subject: Ablation procedures
subject: Treatment effects
subject: Embolisation
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: TransArterial Embolization (TAE) with iodized oil can be used for visualization of tumors and activation of the immune defense system [1, 2, 3]. Irreversible Electroporation (IRE) leads to irreversible cell death but the preservation of the...
title: Picking the lesion to pick on: Comparing diagnostic accuracy and complications rate in patients with lung versus non-lung imaging-guided biopsies
Creators: name: Goicea, Mihaela
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Interventional non-vascular
subject: Oncology
subject: CT
subject: Ultrasound
subject: Biopsy
subject: Cancer
subject: Metastases

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: This poster aims to discuss the choice of biopsy site in patients with multiple oncologic lesions, comparing the diagnostic and complications rate for pulmonary versus non-pulmonary target sites. We chose the lung as a reference site, to which we...
How Constrained is the cMSSM?
Creators: name: Ghosh, Diptimoy
name: Guchait, Monoranjan
name: Raychaudhuri, Sreerup
name: Sengupta, Dipan
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the allowed parameter space of the constrained minimal supersymmetric Standard Model (cMSSM) in the light of direct searches, constraints from $B$-physics (including the recent measurement of the branching ratio for $B_s \to μ^+μ^-$) and the dark matter relic density. For low or moderate values of $\tanβ$, the strongest constraints are those imposed by direct searches, and therefore, large areas of the parameter space are still allowed. In the large $\tan β$ limit, however, the $B$-physics constraints are more restrictive, effectively forcing the squark and gluino masses to lie close to or above a TeV. A light Higgs boson could dramatically change the allowed parameter space, but we need to know its mass precisely for this to be effective. We emphasize that it is still too early to write off the cMSSM, even in the large $\tanβ$ limit. Finally we explore strategies to extend the LHC search for cMSSM signals beyond the present reach of the ATLAS and CMS Collaborations.
description: 28 pages, 5 figures, some clarifications added, version to appear in Phys.Rev.D
title: Transitional experiences of Nigerian students to graduate study at a Canadian university, within a social, political, cultural and linguistic context, a case study of Memorial University.
Creators: name: Adepoju, Foluke Olawumi
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: This study explored the Transitional Experiences of Nigerian Students in Graduate Study at a Canadian University within a Social, Political, Cultural, and Linguistic Context, A Case Study of Memorial University. The study employed a case study design and qualitative methods, utilizing semi-structured interviews with five participants who were international students from Nigeria. Data were analyzed to know the transitional experiences of Nigerian students in graduate study at a Canadian University. This research provided deep insight into the experiences of international students and an enhanced understanding of the broader internationalization of post-secondary education from student and institutional perspectives. Motivation, socializing, language barriers, favourable government policies, and culture shock were the distinct themes identified from the data analysis because of repetition in the data gathered during the interview. The findings from this study, while not generalizable because of the case study design, will provide guidance to inform the decision-making processes of international students, and to help future international students have smooth transitional experiences. It will create awareness within the rank of policymakers, charitable organizations, and planners charged with the responsibility of international student-related programs. The researcher hopes that the results and suggestions of this study will assist St John’s, Newfoundland and Labrador, and Canada in identifying challenges facing international students while transitioning from their home country, the ones they encounter during their stay in the area of study and to place them on the proper footing to eradicate these difficulties. This study should serve as a source of reference for future researchers.
A Pareto-metaheuristic for a bi-objective winner determination problem in a combinatorial reverse auction
Creators: name: Buer, Tobias
name: Kopfer, Herbert
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Artificial Intelligence (cs.AI)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: I.2.8; G.1.6; G.2.3
subject: 90B50, 90C59, 68T20 (Primary), 90B06 (Secondary)

description: The bi-objective winner determination problem (2WDP-SC) of a combinatorial procurement auction for transport contracts is characterized by a set B of bundle bids, with each bundle bid b in B consisting of a bidding carrier c_b, a bid price p_b, and a set tau_b transport contracts which is a subset of the set T of tendered transport contracts. Additionally, the transport quality q_{t,c_b} is given which is expected to be realized when a transport contract t is executed by a carrier c_b. The task of the auctioneer is to find a set X of winning bids (X subset B), such that each transport contract is part of at least one winning bid, the total procurement costs are minimized, and the total transport quality is maximized. This article presents a metaheuristic approach for the 2WDP-SC which integrates the greedy randomized adaptive search procedure with a two-stage candidate component selection procedure, large neighborhood search, and self-adaptive parameter setting in order to find a competitive set of non-dominated solutions. The heuristic outperforms all existing approaches. For seven small benchmark instances, the heuristic is the sole approach that finds all Pareto-optimal solutions. For 28 out of 30 large instances, none of the existing approaches is able to compute a solution that dominates a solution found by the proposed heuristic.
description: Accepted for publication in Computers & Operations Research, available online, Computers & Operations Research, 2013
Image Similarity Using Sparse Representation and Compression Distance
Creators: name: Guha, Tanaya
name: Ward, Rabab K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: A new line of research uses compression methods to measure the similarity between signals. Two signals are considered similar if one can be compressed significantly when the information of the other is known. The existing compression-based similarity methods, although successful in the discrete one dimensional domain, do not work well in the context of images. This paper proposes a sparse representation-based approach to encode the information content of an image using information from the other image, and uses the compactness (sparsity) of the representation as a measure of its compressibility (how much can the image be compressed) with respect to the other image. The more sparse the representation of an image, the better it can be compressed and the more it is similar to the other image. The efficacy of the proposed measure is demonstrated through the high accuracies achieved in image clustering, retrieval and classification.
description: submitted journal draft
The house party metaphor for community management: Essays and reflection questions to unlock your community programming through metaphor
Creators: name: Pratt, Katie
name: Woodley, Lou
Publisher: name: Zenodo
Year: 2023

description: This is the first of three booklets we are releasing in 2023/24, each of which consists of several parts where we set up a metaphor and then go deeper into some of the community management challenges that the metaphor is best placed to unpack, with some reflections questions to support you at the end of each section. Each series of essays was originally posted on the CSCCE blog, and then discussed at one of our monthly community calls. If you have any feedback, or would like to let us know how you've been using metaphors to guide your work, please email us: info@cscce.org. We'd love to hear from you! 
About CSCCE
The Center for Scientific Collaboration and Community Engagement (CSCCE) champions the importance of human infrastructure for effective collaboration in STEM. We provide training and support for the people who make scientific collaborations succeed at scale - and we also research the impact of these emerging roles. Find out more about us on our website: CSCCE.org
Tidal asteroseismology: Kepler's KOI-54
Creators: name: Burkart, Joshua
name: Quataert, Eliot
name: Arras, Phil
name: Weinberg, Nevin N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We develop a general framework for interpreting and analyzing high-precision lightcurves from eccentric stellar binaries. Although our methods are general, we focus on the recently discovered Kepler system KOI-54, a face-on binary of two A stars with $e=0.83$ and an orbital period of 42 days. KOI-54 exhibits strong ellipsoidal variability during its periastron passage; its lightcurve also contains ~20 pulsations at perfect harmonics of the orbital frequency, and another ~10 nonharmonic pulsations. Analysis of such data is a new form of asteroseismology in which oscillation amplitudes and phases rather than frequencies contain information that can be mined to constrain stellar properties. We qualitatively explain the physics of mode excitation and the range of harmonics expected to be observed. To quantitatively model observed pulsation spectra, we develop and apply a linear, tidally forced, nonadiabatic stellar oscillation formalism including the Coriolis force. We produce temporal power spectra for KOI-54 that are semi-quantitatively consistent with the observations. Both stars in the KOI-54 system are expected to be rotating pseudosynchronously, with resonant nonaxisymmetric modes providing a key contribution to the total torque; such resonances provide a possible explanation for the two largest-amplitude harmonic pulsations observed in KOI-54, although we find quantitative problems with this interpretation. We show in detail that the nonharmonic pulsations observed in KOI-54 can be produced by nonlinear three-mode coupling. The methods developed in this paper can be generalized in the future to determine the best-fit stellar parameters given pulsation data. We also derive an analytic model of KOI-54's ellipsoidal variability, including both tidal distortion and stellar irradiation, which can be used to model other similar systems.
description: 26 pages, 9 figures. Accepted to MNRAS
title: Dynamic flow phantom evaluation of sequential contrast media/saline injection using automatic CT injector for the management of iodine concentration
Creators: name: Bartal, Gabriel
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cardiovascular system
subject: Cardiac
subject: Contrast agents
subject: CT-Angiography
subject: Experimental investigations

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Iodine concentration in IV Contrast Media (CM) and the level of x-ray energy (i.e. tube voltage) directly affects CT contrast enhancement. The equivalent of Iodine concentration and CT density was established based on the previously reported...
title: Calcified brain metastases: are they really rare?
Creators: name: Rebella, Giacomo
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Metastases
subject: Radiation therapy / Oncology
subject: CT
subject: Neuroradiology brain

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Metastases represent the most frequent brain neoplastic lesions in the adult population. Calcified brain metastases (CBM) are reported to be rare and to be found predominantly in patients treated with radiotherapy (RT). Nevertheless CBM may be...
Instability types at ion-assisted alloy deposition: from two-dimensional to three-dimensional nanopattern growth
Creators: name: Abrasonis, Gintautas
name: Morawetz, Klaus
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Ion irradiation during film growth has a strong impact on structural properties. Linear stability analysis is employed to study surface instabilities during ion-assisted growth of binary alloys. An interplay between curvature-dependent ion-driven and deposition-driven instabilities is investigated. We demonstrate that ion irradiation of growing binary alloys leads to the formation of composition-modulated surface patterns. It is shown that the ion-to-atom arrival ratio R is the pattern control parameter. Close to the instability threshold we identify different regimes of instabilities driven by ion- or deposition-induced surface roughness processes, or roughness-composition feedback interactions. In particular, the synergistic effects of the curvature-dependent displacement and deposition coupling to the preferential sputtering or to the preferential diffusivity are found to induce instabilities and pattern formation. Depending on the film growth and ion-irradiation conditions, the instabilities show stationary or oscillating behavior. The latter one is exclusively connected with ion irradiation. The corresponding phase diagrams are presented in terms of experimentally accessible parameters. This shows an alternative way to control surface patterning and to grow three-dimensional laterally or vertically ordered nanostructures.
description: 12 pages 3 figures, derivation added
First observation of $B_s^0\to J/ψη$ and $B_s^0\to J/ψη'$
Creators: name: Li, Jin
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report first observations of $B_s^0\to J/ψη$ and $B_s^0\to J/ψη'$. The results are obtained from 121.4 fb^{-1} of data collected at the $Υ(5S)$ resonance with the Belle detector at the KEKB $e^+e^-$ collider. We obtain the branching fractions Br(B_s^0\to J/ψη)= [5.10\pm 0.50(stat.)\pm 0.25(syst.)^{+1.14}_{-0.79}(N_{B_s^(*)\bar B_s^(*))] \times 10^{-4}, and Br(B_s^0\to J/ψη')=[3.71\pm 0.61(stat.)\pm 0.18(syst.)^{+0.83}_{-0.57}(N_{B_s^(*)\bar B_s^(*))] \times 10^{-4}. The ratio of the two branching fractions is measured to be $\frac{Br(B_s\to J/ψη')}{Br(B_s\to J/ψη)} = 0.73\pm 0.14(stat.)\pm 0.02(syst.)$.
description: 5 pages, 3 figures, 2 tables
title: Cybersecurity Workforce Development in Nigeria: Transforming the Cybercrime Gangs into Cybersecurity Specialists
Creators: name: Anteyi, Olohi Favor
Publisher: name: Old Dominion University Libraries
Year: 2023

description: This paper addresses the issue of cybercrime in Nigeria and the possibility of creating a cybersecurity workforce development program for cyber criminals to develop their skills for the cybersecurity profession, which may facilitate Nigeria’s economic development.
title: Complex diagnostics of IHD in Uzbek population: row MDCT angiography and genetic diagnostics in patients with different types of plaques
Creators: name: Djuraeva, Nigora
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cardiac
subject: Cardiovascular system
subject: CT-Angiography
subject: Contrast agent-intravenous
subject: Calcifications / Calculi
subject: Arteriosclerosis

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Multipurpose analysis of the characteristics of the genetic profile, taking into account the type of coronary artery (CA) lesions among people of the Uzbek population with a stable (SIHD) and unstable (UIHD) form of the ischemic heart disease...
title: Imaging of prenatal fractures
Creators: name: Doumit, Raia
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Foetus
subject: Congenital
subject: Intrauterine diagnosis
subject: Education
subject: Diagnostic procedure
subject: Ultrasound
subject: CT
subject: Conventional radiography
subject: Obstetrics (Pregnancy / birth / postnatal period)
subject: Foetal imaging
subject: Bones

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Describe the in-utero findings raising the suspicion of severe osteogenesis imperfecta during prenatal routine ultrasound scan and the multimodality approach to the diagnosis. Present a pictorial review of severe osteogenesis imperfecta cases...
Generalized Toric Codes Coupled to Thermal Baths
Creators: name: Viyuela, O.
name: Rivas, A.
name: Martin-Delgado, M. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have studied the dynamics of a generalized toric code based on qudits at finite temperature by finding the master equation coupling the code's degrees of freedom to a thermal bath. As a consequence, we find that for qutrits new types of anyons and thermal processes appear that are forbidden for qubits. These include creation, annihilation and diffusion throughout the system code. It is possible to solve the master equation in a short-time regime and find expressions for the decay rates as a function of the dimension $d$ of the qudits. Although we provide an explicit proof that the system relax to the Gibbs state for arbitrary qudits, we also prove that above a certain crossing temperature, qutrits initial decay rate is smaller than the original case for qubits. Surprisingly this behavior only happens with qutrits and not with other qudits with $d>3$.
description: Revtex4 file, color figures. New Journal of Physics' version
Hybrid of superconducting quantum interference device and atomic Bose-Einstein condensate: An architecture for quantum information processing
Creators: name: Patton, Kelly R.
name: Fischer, Uwe R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A hybrid quantum system is proposed by coupling the internal hyperfine transitions of a trapped atomic Bose-Einstein condensate (BEC) and a superconducting quantum interference device (SQUID) via the macroscopic quantum field of the flux qubit. The presence of the condensate leads to a bosonic enhancement of the Rabi frequency over the otherwise small single-particle magnetic dipole transition matrix elements. This enhancement allows for the possibility to rapidly transfer and store qubit states in the BEC that were originally prepared in the SQUID. The fidelity of this transfer for different states is calculated, and a direct experimental protocol to determine the transfer fidelity by quantum tomography of the BEC qubit is presented.
description: 9 pages of RevTex4-1, 8 figures
title: Breast adenomyoepithelioma: mammographic and ecographic findings
Creators: name: Oliva, Marcia
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Education and training
subject: Biopsy
subject: Ultrasound
subject: Mammography
subject: Breast

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To evaluate the imaging presentation of adenomyoepithelioma (AME) of the breast and its BI-RADS classification. AMEs are very rare breast tumors. In the WHO classification they belong to the myoepithelial-epithelial tumors¹.They were described for...
Canonical approach to Courant brackets for D-branes
Creators: name: Hatsuda, Machiko
name: Kimura, Tetsuji
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present an extension of the Courant bracket to the ones for Dp-branes by analyzing Hamiltonians and local superalgebras. Contrast to the basis of the bracket for a fundamental string which consists of the momentum and the winding modes, the ones for Dp-branes contain higher rank R-R coupling tensors. We show that the R-R gauge transformation rules are obtained by these Courant brackets for Dp-branes where the Dirac-Born-Infeld gauge field and the "two-vierbein field" play an essential role. Canonical analysis of the worldvolume theories naturally gives the basis of the brackets and the target space backgrounds keeping T-duality manifest at least for NS-NS sector. In a D3-brane analysis S-duality is manifest as a symmetry of interchanging the NS-NS coupling and the R-R coupling.
description: 27 pages, ver2: typos corrected, references added, ver3: R-R gauge vectors are corrected, ver4: Contribution of the canonical bracket for DBI fields is added
title: MRI in an Emergency Department. Our experience
Creators: name: Martínez Cutillas, María Jose
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Emergency
subject: Trauma
subject: Neuroradiology spine
subject: MR
subject: Education
subject: Diagnostic procedure
subject: Trauma
subject: Metastases

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The purpose is to study the current situation of MRI in an emergency department, its indications, the basic technical concepts and pearls for the radiological...