cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Transverse-momentum resummation: Higgs boson production at the Tevatron and the LHC
Creators: name: de Florian, D.
name: Ferrera, G.
name: Grazzini, M.
name: Tommasini, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the transverse-momentum (q_T) distribution of Standard Model Higgs bosons produced by gluon fusion in hadron collisions. At small q_T (q_T<
description: 18 pages, 24 postscript figures. arXiv admin note: substantial text overlap with arXiv:1007.2351
The Daily Life Of A Medium-Size Data Centre. The Cab Astronomical Data Center
Creators: name: Solano, Enrique
Publisher: name: Zenodo
Year: 2015
Subjects: Science data management

description: The Centro de Astrobiología (CAB) Data Centre is the most important astronomical data centre managed by a Spanish institution. Among others, it contains the Gran Telescopio Canarias (GTC) and the Calar Alto (CAHA) scientific archives. Nevertheless, our activities go well beyond data curation. Generation of high level data products (reduced datasets, catalogues,...), knowledge transfer to other Spanish data centres, development of tools to publish astronomical data in VO-compliant archives and services, development of data mining and analysis tools for an optimum scientific exploitation of our data collections and collaboration with scientific groups with research lines using CAB archive data are some of the topics that will be described in this presentation.
Grain Size and Texture of Cu2ZnSnS4 Thin Films Synthesized by Cosputtering Binary Sulfides and Annealing: Effects of Processing Conditions and Sodium
Creators: name: OO, W. M. Hlaing
name: Johnson, J. L.
name: Bhatia, A.
name: Lund, E. A.
name: Nowell, M. M.
name: Scarpulla, M. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the synthesis of kesterite Cu2ZnSnS4 (CZTS) polycrystalline thin films using cosputtering from binary sulfide targets followed by annealing in sulfur vapor at 500 °C to 650 °C. The films are the kesterite CZTS phase as indicated by x-ray diffraction, Raman scattering, and optical absorption measurements. The films exhibit (112) fiber texture and preferred low-angle and Sigma3 grain boundary populations which have been demonstrated to reduce recombination in Cu(In,Ga)Se2 and CdTe films. The grain growth kinetics are investigated as functions of temperature and the addition of Na. Significantly, lateral grain sizes above 1 um are demonstrated for samples grown on Na-free glass,demonstrating the feasibility for CZTS growth on substrates other than soda lime glass.
Sums of even powers of k-regulous functions
Creators: name: Banecki, Juliusz
name: Kowalczyk, Tomasz
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 26C15, 14P99 (Primary)

description: We provide an example of a nonnegative $k$-regulous function on $\mathbb{R}^n$ for $k\geq 1$ and $n \geq 2$ which cannot be written as a sum of squares of $k$-regulous functions. We then obtain lower bounds for Pythagoras numbers $p_{2d}(\mathcal{R}^k(\mathbb{R}^n))$ of $k$-regulous functions on $\mathbb{R}^n$ for $k\geq 1$ and $n\geq 2$. We also prove that the second Pythagoras number of the ring of $0$-regulous functions $\mathcal{R}^0(X)$ on an irreducible $0$-regulous affine variety $X$ is finite and bounded from above by $2^{\dim X}$.
description: Final version, to appear in Indagationes Mathmaticae
title: Pulmonary Langerhans’ Cell Histiocytosis and solitary eosinophilic granuloma in an adult
Creators: name: Goossens, Arnaud
Publisher: name: EURORAD
Year: 2023
Subjects: subject: Chest imaging
subject: Lung
subject: Musculoskeletal bone
subject: Musculoskeletal soft tissue
subject: CT
subject: SPECT
subject: Clinical Cases

description: Clinical History: A 32-year-old female presented at the emergency department with acute right-sided thoracic pain. She also complained of a chronic dry cough. She was an active smoker with 10 packyears. Clinical examination and laboratory results were unremarkable. The patient was hemodynamically stable and afebrile.

description: 32 years, female
Discrete-time quantum walks: continuous limit and symmetries
Creators: name: Di Molfetta, Giuseppe
name: Debbasch, Fabrice
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The continuous limit of one dimensional discrete-time quantum walks with time- and space-dependent coefficients is investigated. A given quantum walk does not generally admit a continuous limit but some families (1-jets) of quantum walks do. All families (1-jets) admitting a continuous limit are identified. The continuous limit is described by a Dirac-like equation or, alternately, a couple of Klein-Gordon equations. Variational principles leading to these equations are also discussed, together with local invariance properties.
Data Federations: Astrowise And Its Applications
Creators: name: Valentijn, Edwin A.
Publisher: name: Zenodo
Year: 2015
Subjects: Science data management

description: The AstroWise information system is operational for  the production of the results of a number  astronomical survey programmes with OmegaCAM@VST and MUSE@VLT. In different forms it has also been applied to the Lofar radiotelescope, life science projects and business applications.  I will discuss the common "data federation"aspects of these projects, and the data federation aspects of the Euclid Archive System.
Polarization resolved magneto-Raman scattering of graphene-like domains on natural graphite
Creators: name: Kuhne, M.
name: Faugeras, C.
name: Kossacki, P.
name: Nicolet, A. A. L.
name: Orlita, M.
name: Latyshev, Yu. I.
name: Potemski, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The micro-Raman scattering response of a graphene-like location on the surface of bulk natural graphite is investigated both at $T=\unit{4.2}{K}$ and at room temperature in magnetic fields up to 29 T. Two different polarization configurations, co-circular and crossed-circular, are employed in order to determine the Raman scattering selection rules. Several distinct series of electronic excitations are observed and we discuss their characteristic shapes and amplitudes. In particular, we report a clear splitting of the signals associated with the inter-Landau level excitations $-n\rightarrow+n$. Furthermore, we observe the pronounced interaction of the zone-center E$_{\text{2g}}$-phonon with three different sets of electronic excitations. Possible origins for these graphene-like inclusions on the surface of bulk graphite are discussed.
description: 10 pages, 11 figures
Lamothe-Lafargue,_Lusmila
Creators: name: Lamothe-Lafargue, Lusmila
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 470102
subject: Communication technology and digital media studies
classificationCode: 470107
subject: Media studies

description: In the last twenty years tourism in Cuba has experimented a sustained growing and a bigger specialization and diversification, in order to become one of its most important economic sectors. Tourism institutions in Cuba have one of the best practices of online communication. The presence of Cuban tourism agencies is relatively new and there ́s plenty of inexperience in the way of managing strategically the content and communication. The travel agency Cubatur S.A. has a little over five years working on the web, it shows practices (or doesn’t show them at all) that shows an absence of a more specialized knowledge the internal functioning of Internet, as well as the online communication management. That ́s why the general objective of this investigation is: “to design an online communication strategy for the Travel Agency Cubatur S.A. for two years”, to gain in the integration of its online communication management.
Analytical calculation of Stokes profiles of rotating stellar magnetic dipole
Creators: name: González, M. J. Martínez
name: Ramos, A. Asensio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The observation of the polarization emerging from a rotating star at different phases opens up the possibility to map the magnetic field in the stellar surface thanks to the well-known Zeeman Doppler Imaging. When the magnetic field is sufficiently weak, the circular and linear polarization profiles locally in each point of the star are proportional to the first and second derivatives of the unperturbed intensity profile, respectively. We show that the weak-field approximation (for weak lines in the case of linear polarization) can be generalized to the case of a rotating star including the Doppler effect and taking into account the integration on the stellar surface. The Stokes profiles are written as a linear combination of wavelength-dependent terms expressed as series expansions in terms of Hermite polynomials. These terms contain the surface integrated magnetic field and velocity components. The direct numerical evaluation of these quantities is limited to rotation velocities not larger than 8 times the Doppler width of the local absorption profiles. Additionally, we demonstrate that, in a rotating star, the circular polarization flux depends on the derivative of the intensity flux with respect to the wavelength and also on the profile itself. Likewise, the linear polarization depends on the profile and on its first and second derivative with respect to the wavelength. We particularize the general expressions to a rotating dipole.
description: accepted in ApJ
Evidence of the ferroelectric polarization in charge transport through WTe$_2$ Weyl semimetal surface
Creators: name: Orlova, N. N.
name: Ryshkov, N. S.
name: Timonina, A. V.
name: Kolesnikov, N. N.
name: Deviatov, E. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate electron transport along the surface of WTe$_2$ three-dimensional single crystals, which are characterized by coexistence of Weyl semimetal conductivity and ferroelectricity at room temperature. We find that non-linear behavior of $dV/dI(I)$ WTe$_2$ differential resistance is accompanied by slow relaxation process, which appears as the $dV/dI(I)$ dependence on the sign of the current change. This observation is confirmed by direct investigation of time-dependent relaxation curves. While strongly non-linear differential resistance should be expected for the zero-gap WTe$_2$, the slow relaxation in transport is very unusual for well-conducting semimetals at room temperature. We establish, that non-monotonous dependence of the amplitude of the effect on driving current $ΔdV/dI(I)$ well corresponds to the known Sawyer-Tower's ferroelectric hysteresis loop. This conclusion is also confirmed by gate voltage dependencies, so our results can be understood as a direct demonstration of WTe$_2$ ferroelectric polarization in charge transport experiment.
title: A rare case of multifocal primary renal lymphoma mimicking as renal cell carcinoma
Creators: name: G, Pallavi
Publisher: name: EURORAD
Year: 2023
Subjects: subject: Uroradiology & genital male imaging
subject: Abdomen
subject: CT
subject: Clinical Cases

description: Clinical History: A 70-year-old female patient presented to the clinic with a history of pain abdomen localized in the bilateral flank and loss of appetite for 1 month. No comorbidities. On examination, a renal lump was palpable on both lumbar regions.

description: 70 years, female
Combined Sparse Regularization for Nonlinear Adaptive Filters
Creators: name: Comminiello, Danilo
name: Scarpiniti, Michele
name: Scardapane, Simone
name: Azpicueta-Ruiz, Luis A.
name: Uncini, Aurelio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Nonlinear adaptive filters often show some sparse behavior due to the fact that not all the coefficients are equally useful for the modeling of any nonlinearity. Recently, a class of proportionate algorithms has been proposed for nonlinear filters to leverage sparsity of their coefficients. However, the choice of the norm penalty of the cost function may be not always appropriate depending on the problem. In this paper, we introduce an adaptive combined scheme based on a block-based approach involving two nonlinear filters with different regularization that allows to achieve always superior performance than individual rules. The proposed method is assessed in nonlinear system identification problems, showing its effectiveness in taking advantage of the online combined regularization.
description: This is a corrected version of the paper presented at EUSIPCO 2018 and published on IEEE https://ieeexplore.ieee.org/document/8552955
An aluminum/calcium-rich, iron-poor, white dwarf star: evidence for an extrasolar planetary lithosphere?
Creators: name: Zuckerman, B.
name: Koester, D.
name: Dufour, P.
name: Melis, Carl
name: Klein, B.
name: Jura, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The presence of elements heavier than helium in white dwarf atmospheres is often a signpost for the existence of rocky objects that currently or previously orbited these stars. We have measured the abundances of various elements in the hydrogen-atmosphere white dwarfs G149-28 and NLTT 43806. In comparison with other white dwarfs with atmospheres polluted by heavy elements, NLTT 43806 is substantially enriched in aluminum but relatively poor in iron. We compare the relative abundances of Al and eight other heavy elements seen in NLTT 43806 with the elemental composition of bulk Earth, with simulated extrasolar rocky planets, with solar system meteorites, with the atmospheric compositions of other polluted white dwarfs, and with the outer layers of the Moon and Earth. Best agreement is found with a model that involves accretion of a mixture of terrestrial crust and upper mantle material onto NLTT 43806. The implication is that NLTT 43806 is orbited by a differentiated rocky planet, perhaps quite similar to Earth, that has suffered a collision that stripped away some of its outer layers.
description: Accepted for publication in the Astrophysical Journal
Science Data Management For The E-Elt: Usecase Micado
Creators: name: Verdoes Kleijn, Gijs
Publisher: name: Zenodo
Year: 2015
Subjects: Science data management

description: The E-ELT First-light instrument MICADO will explore new  parameter space in terms of precision astrometry, photometry and spectroscopy. This provides challenges for the data handling and reduction to ensure MICADO takes the observational capabilities of the AO-assisted E-ELT towards its limits. Our plan is to achieve this via iterative improvement of data quality. We present implications for the science data management system and pipelines. The iterative feedback loop between improving science data quality and improving the instrument, telescope and atmospheric calibration leads to an ever better observational model. For this reason the MICADO instrument data simulator plays a vital role in the design of pipelines and science data management system. It should provide realistic data for all science cases to guide the trade-off between calibration via hardware and software. It can then also guide how to embed the observational model in the data management system.  We discuss our current models of instrument, E-ELT and sky background and the type of science data management system that supports their continuous monitoring and iterative improvement.
Optical photometry of GM Cep: evidence for UXor type of variability
Creators: name: Semkov, E. H.
name: Peneva, S. P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Results from optical photometric observations of the pre-main sequence star GM Cep are reported in the paper. The star is located in the field of the young open cluster Trumpler 37 - a region of active star formation. GM Cep shows a large amplitude rapid variability interpreted as a possible outburst from EXor type in previous studies. Our data from BVRI CCD photometric observations of the star are collected from June 2008 to February 2011 in Rozhen observatory (Bulgaria) and Skinakas observatory (Crete, Greece). A sequence of sixteen comparison stars in the field of GM Cep was calibrated in the BVRI bands. Our photometric data for a 2.5 years period show a high amplitude variations (Delta V ~ 2.3m) and two deep minimums in brightness are observed. The analysis of collected multicolor photometric data shows the typical of UX Ori variables a color reversal during the minimums in brightness. On the other hand, high amplitude rapid variations in brightness typical for the Classical T Tauri stars also present on the light curve of GM Cep. Comparing our results with results published in the literature, we conclude that changes in brightness are caused by superposition of both: (1) magnetically channeled accretion from the circumstellar disk, and (2) occultation from circumstellar clouds of dust or from features of a circumstellar disk.
description: 7 pages, 3 figures, accepted for publication in Ap&SS
A complex multi-notch astronomical filter to suppress the bright infrared sky
Creators: name: Bland-Hawthorn, J.
name: Ellis, S. C.
name: Leon-Saval, S. G.
name: Haynes, R.
name: Roth, M. M.
name: Löhmannsröben, H. -G.
name: Horton, A. J.
name: Cuby, J. -G.
name: Birks, T. A.
name: Lawrence, J. S.
name: Gillingham, P.
name: Ryder, S. D.
name: Trinh, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: A long-standing and profound problem in astronomy is the difficulty in obtaining deep near-infrared observations due to the extreme brightness and variability of the night sky at these wavelengths. A solution to this problem is crucial if we are to obtain the deepest possible observations of the early Universe since redshifted starlight from distant galaxies appears at these wavelengths. The atmospheric emission between 1000 nm and 1800 nm arises almost entirely from a forest of extremely bright, very narrow hydroxyl emission lines that varies on timescales of minutes. The astronomical community has long envisaged the prospect of selectively removing these lines, while retaining high throughput between the lines. Here we demonstrate such a filter for the first time, presenting results from the first on-sky tests. Its use on current 8m telescopes and future 30m telescopes will open up many new research avenues in the years to come.
description: 15 pages, 5 figures. Nature Communications. Published 06 December 2011
Multivariate Trace Inequalities, p-Fidelity, and Universal Recovery Beyond Tracial Settings
Creators: name: Junge, Marius
name: LaRacuente, Nicholas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Operator Algebras (math.OA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 47B02

description: Trace inequalities are general techniques with many applications in quantum information theory, often replacing classical functional calculus in noncommutative settings. The physics of quantum field theory and holography, however, motivate entropy inequalities in type III von Neumann algebras that lack a semifinite trace. The Haagerup and Kosaki $L_p$ spaces enable re-expressing trace inequalities in non-tracial von Neumann algebras. In particular, we show this for the generalized Araki-Lieb-Thirring and Golden-Thompson inequalities from (Sutter, Berta \& Tomamichel 2017). Then, using the Haagerup approximation method, we prove a general von Neumann algebra version of univeral recovery map corrections to the data processing inequality for relative entropy. We also show subharmonicity of a logarithmic p-fidelity of recovery. Furthermore, we prove that non-decrease of relative entropy is equivalent to existence of an $L_1$-isometry implementing the channel on both input states.
title: Caring with Nature/s
title: Zur transformativen Bedeutung von Care in More Than Human Worlds
titleType: Subtitle
Creators: name: Gottschlich, Daniela
name: Katz, Christine
Publisher: name: Göttingen
Year: 2020
Subjects: subject: Care
subject: Theorie
subject: 320 Politikwissenschaft
subject: Care/Caring with
subject: Natur/en
subject: politisch-ökologische Theorie von Care
subject: ontologische Relationalität
subject: sozial-ökologische Transformation

description: Der Beitrag geht davon aus, dass Menschen in die organische, anorganische und technisch veränderte Welt in wechselseitiger Abhängigkeit eingebettet bzw. von dieser materiell-physisch wie auch diskur- siv durchdrungen sind. Analog zu Puig de la Bellacasa wird Caring daher nicht als wählbare Option beschrieben, sondern als eine unverzichtbare Notwendigkeit für alle Wesen, eine übergeordnete Prak- tik von ontologischer Signifikanz, die auch eine politische Dimension beinhaltet. Denn darüber wer- den Qualitäten und Strukturen des Kollektiven mitgestaltet. In diesem Artikel wird begründet, warum ontologische Relationalität zum Ausgangspunkt politischer Gestaltungspraxis von Natur/en gemacht werden sollte, und es wird diskutiert, wie die politisch-ökologische Dimension von Care weiterentwi- ckelt und für die sozial-ökologische Transformation in Richtung Nachhaltigkeit genutzt werden kann. In diesem Zusammenhang werden die konzeptionellen Eckpfeiler und Schlüsselbegriffe einer poli- tisch-ökologischen Theorie von Care entfaltet und zur Diskussion gestellt. Konkretisiert wird ihre Bedeutung für die politische Gestaltung gesellschaftlicher Naturverhältnisse am Beispiel des Kampfes um den Hambacher Forst. The article assumes that humans are embedded in the organic, inorganic and technically altered world in mutual dependence and are materially-physically as well as discursively permeated by it. Analogous to Puig de la Bellacasa, caring is therefore not described as a selectable option, but as an indispensable necessity for all beings, a superordinate practice of ontological significance that also includes a politi- cal dimension. For qualities and structures of the collective are shaped in this way. This article ex- plains why ontological relationality should be made the starting point of political design practice of nature/s and discusses how the political-ecological dimension of care can be further developed and used for social-ecological transformation towards sustainability. In this context, the conceptual cor- nerstones and key elements of a political-ecological theory of care are developed and put forward for discussion. Its significance for the political shaping of societal relations to nature is illustrated with the concrete example of the struggle for the Hambacher forest.
A Quaternion-Valued Variational Autoencoder
Creators: name: Grassucci, Eleonora
name: Comminiello, Danilo
name: Uncini, Aurelio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Deep probabilistic generative models have achieved incredible success in many fields of application. Among such models, variational autoencoders (VAEs) have proved their ability in modeling a generative process by learning a latent representation of the input. In this paper, we propose a novel VAE defined in the quaternion domain, which exploits the properties of quaternion algebra to improve performance while significantly reducing the number of parameters required by the network. The success of the proposed quaternion VAE with respect to traditional VAEs relies on the ability to leverage the internal relations between quaternion-valued input features and on the properties of second-order statistics which allow to define the latent variables in the augmented quaternion domain. In order to show the advantages due to such properties, we define a plain convolutional VAE in the quaternion domain and we evaluate its performance with respect to its real-valued counterpart on the CelebA face dataset.
description: Accepted for publication at the 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
The homotopy theory of complete modules
Creators: name: Pol, Luca
name: Williamson, Jordan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 13B35, 13D09, 18N40

description: Given a commutative ring $R$ and finitely generated ideal $I$, one can consider the classes of $I$-adically complete, $L_0^I$-complete and derived $I$-complete complexes. Under a mild assumption on the ideal $I$ called weak pro-regularity, these three notions of completions interact well. We consider the classes of $I$-adically complete, $L_0^I$-complete and derived $I$-complete complexes and prove that they present the same homotopy theory. Given a ring homomorphism $R \to S$, we then give necessary and sufficient conditions for the categories of complete $R$-complexes and the categories of complete $S$-complexes to have equivalent homotopy theories. This recovers and generalizes a result of Sather-Wagstaff and Wicklein on extended local (co)homology.
description: 20pp, v2: version accepted in Journal of Algebra
Modeling the X-rays Resulting from High Velocity Clouds
Creators: name: Shelton, Robin L.
name: Kwak, Kyujin
name: Henley, David B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: With the goal of understanding why X-rays have been reported near some high velocity clouds, we perform detailed 3 dimensional hydrodynamic and magnetohydrodynamic simulations of clouds interacting with environmental gas like that in the Galaxy's thick disk/halo or the Magellanic Stream. We examine 2 scenarios. In the first, clouds travel fast enough to shock-heat warm environmental gas. In this scenario, the X-ray productivity depends strongly on the speed of the cloud and the radiative cooling rate. In order to shock-heat environmental gas to temperatures of > or = 10^6 K, cloud speeds of > or = 300 km/s are required. If cooling is quenched, then the shock-heated ambient gas is X-ray emissive, producing bright X-rays in the 1/4 keV band and some X-rays in the 3/4 keV band due to O VII and other ions. If, in contrast, the radiative cooling rate is similar to that of collisional ionizational equilibrium plasma with solar abundances, then the shocked gas is only mildly bright and for only about 1 Myr. The predicted count rates for the non-radiative case are bright enough to explain the count rate observed with XMM-Newton toward a Magellanic Stream cloud and some enhancement in the ROSAT 1/4 keV count rate toward Complex C, while the predicted count rates for the fully radiative case are not. In the second scenario, the clouds travel through and mix with hot ambient gas. The mixed zone can contain hot gas, but the hot portion of the mixed gas is not as bright as those from the shock-heating scenario.
description: 15 pages, 9 figures, 1 table. Accepted for publication in the Astrophysical Journal
A tutorial on the stability and bifurcation analysis of the electromechanical behaviour of soft materials
Creators: name: Yang, Shengyou
name: Sharma, Pradeep
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Soft materials, such as liquids, polymers, foams, gels, colloids, granular materials, and most soft biological materials, play an important role in our daily lives. From a mechanical viewpoint, soft materials can easily achieve large deformations due to their low elastic moduli; meanwhile, surface instabilities, including wrinkles, creases, folds, and ridges, among others, are often observed. In particular, soft dielectrics subject to electrical stimuli can achieve significantly large deformations that are often accompanied by instabilities. While instabilities are often thought to cause failures in the engineering context and carry a negative connotation, they can also be harnessed for various applications such as surface patterning, giant actuation strain, and energy harvesting. In the biological world, instability and bifurcation phenomena often precede important events such as endocytosis, cell fusion, among others. Stability and bifurcation analysis (especially for soft materials) is challenging and often presents a formidable barrier to entry in this important field. A multidisciplinary audience may lack the background in one or more areas that are needed to carry out the requisite modeling or even understand papers in the literature. Furthermore, combining electrostatics together with large deformations brings its own challenges. In this article, we provide a tutorial on the basics of stability and bifurcation analysis in the context of soft electromechanical materials. The aim of the article is to use simple examples and ``gently" lead a reader, unfamiliar with either stability analysis or electrostatics of deformable media, to develop the ability to understand the pertinent literature that already exists and position them to embark on state-of-the-art research on this topic.
Forget About Data, Deliver Results
Creators: name: Walter, Roland
Publisher: name: Zenodo
Year: 2015
Subjects: Science data management

description: High-energy astrophysics space missions have pioneered and demonstrated the power of legacy data sets for generating new discoveries, especially when analysed in ways original researchers could not have anticipated.

The only way to ensure that the data of present observatories can be effectively used in the future is to allow users to perform on-the-fly data analysis to produce straightforwardly scientific results for any sky position, time and energy intervals without requiring mission specific software or detailed instrumental knowledge.

Providing a straightforward interface to complex data and data analysis makes the data and the process of generating science results available to the public and higher education and promotes the visibility of the investment in science to the society. This is a fundamental step to transmit the values of science and to evolve towards a knowledge society.
What can we learn about solar coronal mass ejections, coronal dimmings, and Extreme-Ultraviolet jets through spectroscopic observations?
Creators: name: Tian, Hui
name: McIntosh, Scott W.
name: Xia, Lidong
name: He, Jiansen
name: Wang, Xin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We analyze several data sets obtained by Hinode/EIS and find various types of flows during CMEs and EUV jet eruptions. CME-induced dimming regions are found to be characterized by significant blueshift and enhanced line width by using a single Gaussian fit. While a red-blue (RB) asymmetry analysis and a RB-guided double Gaussian fit of the coronal line profiles indicate that these are likely caused by the superposition of a strong background emission component and a relatively weak (~10%) high-speed (~100 km s-1) upflow component. This finding suggests that the outflow velocity in the dimming region is probably of the order of 100 km s-1, not ~20 km s-1 as reported previously. Density and temperature diagnostics suggest that dimming is primarily an effect of density decrease rather than temperature change. The mass losses in dimming regions as estimated from different methods are roughly consistent with each other and they are 20%-60% of the masses of the associated CMEs. With the guide of RB asymmetry analysis, we also find several temperature-dependent outflows (speed increases with temperature) immediately outside the (deepest) dimming region. In an erupted CME loop and an EUV jet, profiles of emission lines formed at coronal and transition region temperatures are found to exhibit two well-separated components, an almost stationary component accounting for the background emission and a highly blueshifted (~200 km s-1) component representing emission from the erupting material. The two components can easily be decomposed through a double Gaussian fit and we can diagnose the electron density, temperature and mass of the ejecta. Combining the speed of the blueshifted component and the projected speed of the erupting material derived from simultaneous imaging observations, we can calculate the real speed of the ejecta.
description: 20 figures. Ready for publication in ApJ. The quality of Figures 4,5 15 & 20 is greatly reduced as a result of the requirement of the size limit of arXiv.org. High-quality version of these figures can be found in http://download.hao.ucar.edu/pub/htian/
Muse Pipeline: The First Year In Operation
Creators: name: Weilbacher, Peter
Publisher: name: Zenodo
Year: 2015
Subjects: Science data management

description: I will present the MUSE pipeline, in terms of calibration data required, reduction steps performed, computing requirements needed. I will then highlight some unusual algorithms. I will describe changes that became necessary during commissioning and the first year of operations and how the pipeline is now integrated into operations on Paranal. I will conclude by showing some example results that were enabled by the MUSE instrument and the pipeline in the first year.
title: Brain Serpentine Aneurysm: a rare pathology we need to know
Creators: name: Bozzao, Alessandro
Publisher: name: EURORAD
Year: 2023
Subjects: subject: Neuroradiology
subject: Neuroradiology brain
subject: MR
subject: MR-Angiography
subject: MR-Functional imaging
subject: Clinical Cases

description: Clinical History: The patient is a 45-year-old woman, left-handed, with a long history of drug abuse (cocaine).

Three years prior to our observation she had performed this MRI for fainting episodes and headaches.

In February 2020 she performed, on an outpatient basis, a CT scan for a worsening of a symptomatology characterized by headaches and episodes of transient aphasia.

Because of the CT findings, a contrast enhanced MRI with MRA was performed a few days later. She was then admitted to Hospital and a DSA was obtained.

description: 45 years, female
Consistent LDA'+DMFT -- an unambiguous way to avoid double counting problem: NiO test
Creators: name: Nekrasov, I. A.
name: Pavlov, N. S.
name: Sadovskii, M. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a consistent way of treating a double counting problem unavoidably arising within the LDA+DMFT combined approach to realistic calculations of electronic structure of strongly correlated systems. The main obstacle here is the absence of systematic (e.g. diagrammatic) way to express LDA (local density approximation) contribution to exchange correlation energy appearing in the density functional theory. It is not clear then, which part of interaction entering DMFT (dynamical mean-field theory) is already taken into account through LDA calculations. Because of that, up to now there is no accepted unique expression for the double counting correction in LDA+DMFT. To avoid this problem we propose here the consistent LDA'+DMFT approach, where LDA exchange correlation contribution is explicitly excluded for correlated states (bands) during self-consistent band structure calculations. What is left out of Coulomb interaction for those strongly correlated states (bands) is its non-local part, which is not included in DMFT, and the local Hartree like contribution. Then the double counting correction is uniquely reduced to the local Hartree contribution. Correlations for strongly correlated states are then directly accounted for via the standard DMFT. We further test the consistent LDA'+DMFT scheme and compare it with conventional LDA+DMFT calculating the electronic structure of NiO. Opposite to the conventional LDA+DMFT our consistent LDA'+DMFT approach unambiguously produces the insulating band structure in agreement with experiments.
description: 5 pages, 2 figures
Consensus based land use planning: success and failure of British Columbia's Commission on Resources and Environment's shared decision making model
Creators: name: Andersen, Jennifer
Publisher: name: Environmental Design
Year: 1997
Subjects: subject: HD319 .B7 A63 1997
subject: Land use - British Columbia - Planning
subject: Land use - Government policy - British Columbia
subject: Environmental policy - British Columbia
subject: Sustainable development - British Columbia
subject: British Columbia -- Land Use Planning

description: Bibliography : p. 153-162.
description: UARC
On a strengthening of the Blaschke-Leichtweiss theorem
Creators: name: Bezdek, Károly
Publisher: name: arXiv
Year: 2021
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: The Blaschke-Leichtweiss theorem (Abh. Math. Sem. Univ. Hamburg 75: 257-284, 2005) states that the smallest area convex domain of constant width $w$ in the $2$-dimensional spherical space ${\mathbb S}^2$ is the spherical Reuleaux triangle for all $0
description: 11 pages, 3 figures
Effect of fpvA mutations on exotoxin A production in Pseudomonas aeruginosa
Creators: name: Wood, Julian Allister Oliver
Publisher: name: University of Calgary
Year: 1997
Subjects: subject: QR82 .P78 W66 1997
subject: Pseudomonas aeruginosa
subject: Cystic fibrosis
subject: Bacterial toxins

description: Bibliography: p. 161-182
Explosion Mechanisms of Core-Collapse Supernovae
Creators: name: Janka, H. -Thomas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Supernova theory, numerical and analytic, has made remarkable progress in the past decade. This progress was made possible by more sophisticated simulation tools, especially for neutrino transport, improved microphysics, and deeper insights into the role of hydrodynamic instabilities. Violent, large-scale nonradial mass motions are generic in supernova cores. The neutrino-heating mechanism, aided by nonradial flows, drives explosions, albeit low-energy ones, of ONeMg-core and some Fe-core progenitors. The characteristics of the neutrino emission from new-born neutron stars were revised, new features of the gravitational-wave signals were discovered, our notion of supernova nucleosynthesis was shattered, and our understanding of pulsar kicks and explosion asymmetries was significantly improved. But simulations also suggest that neutrino-powered explosions might not explain the most energetic supernovae and hypernovae, which seem to demand magnetorotational driving. Now that modeling is being advanced from two to three dimensions, more realism, new perspectives, and hopefully answers to long-standing questions are coming into reach.
description: 35 pages, 11 figures (29 eps files; high-quality versions can be obtained upon request); accepted by Annual Review of Nuclear and Particle Science
title: Venous embolisation of the periprostatic plexus in erectile dysfunction
Creators: name: Veiga, José Manuel
Publisher: name: EURORAD
Year: 2023
Subjects: subject: Interventional radiology
subject: Arteries / Aorta
subject: Genital / Reproductive system male
subject: Interventional vascular
subject: Fluoroscopy
subject: Arterial access
subject: Embolisation
subject: Clinical Cases

description: Clinical History: An 81-year-old man with a history of prostatic artery embolisation (PAE) due to benign prostatic hyperplasia complained of erectile dysfunction.

The IIEF (International Index of Erectile Dysfunction) questionnaire score was 6/30.

He underwent penile Doppler-ultrasound, which fulfilled the diagnostic criteria for veno-occlusive dysfunction. Other potential causes were excluded.

Combination therapy (alprostadil 20mcg/ml + tadalafil 20mg) was insufficient.

description: 81 years, male
Information Symmetries in Irreversible Processes
Creators: name: Ellison, Christopher J.
name: Mahoney, John R.
name: James, Ryan G.
name: Crutchfield, James P.
name: Reichardt, Joerg
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Information Theory (cs.IT)
subject: Statistics Theory (math.ST)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We study dynamical reversibility in stationary stochastic processes from an information theoretic perspective. Extending earlier work on the reversibility of Markov chains, we focus on finitary processes with arbitrarily long conditional correlations. In particular, we examine stationary processes represented or generated by edge-emitting, finite-state hidden Markov models. Surprisingly, we find pervasive temporal asymmetries in the statistics of such stationary processes with the consequence that the computational resources necessary to generate a process in the forward and reverse temporal directions are generally not the same. In fact, an exhaustive survey indicates that most stationary processes are irreversible. We study the ensuing relations between model topology in different representations, the process's statistical properties, and its reversibility in detail. A process's temporal asymmetry is efficiently captured using two canonical unifilar representations of the generating model, the forward-time and reverse-time epsilon-machines. We analyze example irreversible processes whose epsilon-machine presentations change size under time reversal, including one which has a finite number of recurrent causal states in one direction, but an infinite number in the opposite. From the forward-time and reverse-time epsilon-machines, we are able to construct a symmetrized, but nonunifilar, generator of a process---the bidirectional machine. Using the bidirectional machine, we show how to directly calculate a process's fundamental information properties, many of which are otherwise only poorly approximated via process samples. The tools we introduce and the insights we offer provide a better understanding of the many facets of reversibility and irreversibility in stochastic processes.
description: 32 pages, 17 figures, 2 tables; http://csc.ucdavis.edu/~cmg/compmech/pubs/pratisp2.htm
Cosmological constant as a finite temperature effect
Creators: name: Park, I. Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We reexamine the cosmological constant problem in a finite temperature setup and propose an intriguing possibility of carrying out perturbative analysis by employing a renormalization scheme in which the renormalized Higgs mass (or resummed mass, to be more precise) is taken to be on the order of the CMB temperature. Our proposal hinges on the fact that although the physical value of the cosmological constant does not depend on one's renormalization scheme, whether or not a fine tuning is involved does. The cosmological constant problem is avoided in the sense that the renormalization process no longer requires finetuning. This is achieved essentially by renormalization scheme-independence of a physical quantity, which in turn is assured by bare perturbation theory. The proposal shifts the cosmological constant problem to a peculiarity of the consequent perturbation series for the Higgs mass (and other massive sectors of the Standard Model); the peculiarity is interpreted as an indicator of new physics after the expected mathematical structure of the series is scrutinized. Finite-temperature-induced complexification of the effective potential is observed and its interpretation is given. A consistency check in the cosmology context is suggested.
description: 24 (20+4) pages, comments added on potential implications for Hubble tension and early dark energy, minor corrections, version to appear in IJMPA
Determining Dark Matter-Electron Scattering Rates from the Dielectric Function
Creators: name: Hochberg, Yonit
name: Kahn, Yonatan
name: Kurinsky, Noah
name: Lehmann, Benjamin V.
name: Yu, To Chin
name: Berggren, Karl K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We show that the rate for dark matter-electron scattering in an arbitrary material is determined by an experimentally measurable quantity, the complex dielectric function, for any dark matter interaction that couples to electron density. This formulation automatically includes many-body effects, eliminates all systematic theoretical uncertainties on the electronic wavefunctions, and allows a direct calibration of the spectrum by electromagnetic probes such as infrared spectroscopy, X-ray scattering, and electron energy-loss spectroscopy (EELS). Our formalism applies for several common benchmark models, including spin-independent interactions through scalar and vector mediators of arbitrary mass. We discuss the consequences for standard semiconductor and superconductor targets, and find that the true reach of superconductor detectors for light mediators exceeds previous estimates by several orders of magnitude, with further enhancements possible due to the low-energy tail of the plasmon. Using a heavy-fermion superconductor as an example, we show how our formulation allows a rapid and systematic investigation of novel electron scattering targets.
description: 5 pages + references, 2 figures. Includes supplementary material (13 pages, 6 figures). Fixed typo in eq. (S.16)
Electrostatic stability of insulating surfaces: Theory and applications
Creators: name: Stengel, Massimiliano
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We analyze the electrostatic stability of insulating surfaces in the framework of the bulk modern theory of polarization. We show that heuristic arguments based on a fully ionic limit find formal justification at the microscopic level, even in solids where the bonding has a mixed ionic/covalent character. Based on these arguments, we propose simple criteria to construct arbitrary non-polar terminations of a given bulk crystal. We illustrate our ideas by performing model calculations of several LaAlO3 and SrTiO3 surfaces. We find, in the case of ideal LaAlO3 surfaces, that cleavage along a higher-index (n10) direction is energetically favorable compared to the polar (100) orientation. In the presence of external adsorbates or defects the picture can change dramatically, as we demonstrate in the case of H2O/LaAlO3(100).
description: 18 pages, 10 figures