cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Anti-oppressive science teaching: an investigation of intermediate and secondary science teachers' views and practices
Creators: name: Stapleton, Nikita
Publisher: name: Memorial University of Newfoundland
publisherIdentifier: https://ror.org/04haebc03
publisherIdentifierScheme: ROR
Year: 2024

description: Whether via outright abuse, exploitation, neglect, or exclusion, the oppression of marginalized identities within science is a long-standing and well-documented phenomenon. In the absence of intentional and concerted efforts, school science programs can perpetuate this oppression. Anti-oppressive pedagogy is a set of theories and practices which seeks to challenge this, to dismantle oppressions within and beyond the classroom, and to liberate students. The purpose of this research study was to examine teachers’ views on and use of anti-oppressive teaching in intermediate-secondary science classrooms in Newfoundland and Labrador. The study employed a mixed methods design, which incorporated a digital questionnaire and semi-structured interviews with science teachers. The results demonstrated significant variability among local teachers' perspectives. Several participants expressed a lack of awareness in relation to oppression in science, and some expressed resistance to engaging with such topics in their classes. There was also considerable disparity observed in terms of teachers’ reported implementation of anti-oppressive teaching practices. Overall, findings indicated that the integration of these practices within local intermediate and secondary science programs is severely limited. The study revealed several factors which influence teachers' engagement with anti-oppressive teaching. Consideration of these factors, together with existing literature, illuminated some key actions for advancing anti-oppressive science teaching and promoting equity in science.
Mobile Online Gaming via Resource Sharing
Creators: name: Ferretti, Stefano
name: D'Angelo, Gabriele
Publisher: name: arXiv
Year: 2012
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Mobile gaming presents a number of main issues which remain open. These are concerned mainly with connectivity, computational capacities, memory and battery constraints. In this paper, we discuss the design of a fully distributed approach for the support of mobile Multiplayer Online Games (MOGs). In mobile environments, several features might be exploited to enable resource sharing among multiple devices / game consoles owned by different mobile users. We show the advantages of trading computing / networking facilities among mobile players. This operation mode opens a wide number of interesting sharing scenarios, thus promoting the deployment of novel mobile online games. In particular, once mobile nodes make their resource available for the community, it becomes possible to distribute the software modules that compose the game engine. This allows to distribute the workload for the game advancement management. We claim that resource sharing is in unison with the idea of ludic activity that is behind MOGs. Hence, such schemes can be profitably employed in these contexts.
description: Proceedings of 3nd ICST/CREATE-NET Workshop on DIstributed SImulation and Online gaming (DISIO 2012). In conjunction with SIMUTools 2012. Desenzano, Italy, March 2012. ISBN: 978-1-936968-47-3
Topology of iterated $S^1$-bundles
Creators: name: Lee, Jong Bum
name: Masuda, Mikiya
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Topology (math.AT)
subject: Differential Geometry (math.DG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57R22 (Primary) 57N65, 22E25 (Secondary)

description: In this paper we investigate what kind of manifolds arise as the total spaces of iterated $S^1$-bundles. A real Bott tower studied in \cite{CMO}, \cite{KM} and \cite{KN} is an example of an iterated $S^1$-bundle. We show that the total space of an iterated $S^1$-bundle is homeomorphic to an infra-nilmanifold. A real Bott manifold, which is the total space of a real Bott tower, provides an example of a closed flat Riemannian manifold. We also show that real Bott manifolds are the only closed flat Riemannian manifolds obtained from iterated $\bbr{P}^1$-bundles. Finally we classify the homeomorphism types of the total spaces of iterated $S^1$-bundles in dimension 3.
Morita base change in Hopf-cyclic (co)homology
Creators: name: Kaoutit, Laiachi El
name: Kowalzig, Niels
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Algebra (math.QA)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 16D90, 16E40, 16T05, 18D10, 58B34

description: In this paper, we establish the invariance of cyclic (co)homology of left Hopf algebroids under the change of Morita equivalent base algebras. The classical result on Morita invariance for cyclic homology of associative algebras appears as a special example of this theory. In our main application we consider the Morita equivalence between the algebra of complex-valued smooth functions on the classical 2-torus and the coordinate algebra of the noncommutative 2-torus with rational parameter. We then construct a Morita base change left Hopf algebroid over this noncommutative 2-torus and show that its cyclic (co)homology can be computed by means of the homology of the Lie algebroid of vector fields on the classical 2-torus.
description: Final version to appear in Lett. Math. Phys
Comparison inequalities and fastest-mixing Markov chains
Creators: name: Fill, James Allen
name: Kahn, Jonas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We introduce a new partial order on the class of stochastically monotone Markov kernels having a given stationary distribution $π$ on a given finite partially ordered state space $\mathcal{X}$. When $K\preceq L$ in this partial order we say that $K$ and $L$ satisfy a comparison inequality. We establish that if $K_1,\ldots,K_t$ and $L_1,\ldots,L_t$ are reversible and $K_s\preceq L_s$ for $s=1,\ldots,t$, then $K_1\cdots K_t\preceq L_1\cdots L_t$. In particular, in the time-homogeneous case we have $K^t\preceq L^t$ for every $t$ if $K$ and $L$ are reversible and $K\preceq L$, and using this we show that (for suitable common initial distributions) the Markov chain $Y$ with kernel $K$ mixes faster than the chain $Z$ with kernel $L$, in the strong sense that at every time $t$ the discrepancy - measured by total variation distance or separation or $L^2$-distance - between the law of $Y_t$ and $π$ is smaller than that between the law of $Z_t$ and $π$. Using comparison inequalities together with specialized arguments to remove the stochastic monotonicity restriction, we answer a question of Persi Diaconis by showing that, among all symmetric birth-and-death kernels on the path $\mathcal{X}=\{0,\ldots,n\}$, the one (we call it the uniform chain) that produces fastest convergence from initial state 0 to the uniform distribution has transition probability 1/2 in each direction along each edge of the path, with holding probability 1/2 at each endpoint.
description: Published in at http://dx.doi.org/10.1214/12-AAP886 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Introduction: According to WHO; youth are young people within 15-24 years old. Studies reported that more than half of all new HIV infections occur in people between the ages of 15 and 24 years. Identifying risky sexual behaviors and associated factors among this group of youth is critical to design sound intervention. However limited studies acknowledge the differential vulnerability of high school students for risky sexual behavior in Ethiopia. Therefore this study aims to investigate risky sexual behaviors and associated factors among high school students in Gondar city administration. Objective: To assess the prevalence of risky sexual behaviors and associated factors among high school students in Gondar city administration. Methods: Institution based quantitative cross-sectional study was conducted from March 23/2015 to march 26/ 2015 among high school students in Gondar city administration. Multistage sampling technique was employed to recruit study participants and Data was collected using structured self-administered questionnaire, and entered using epiinfo version 7 and imported to SPSS version 21 for analysis. Descriptive statistics like frequency, proportion and mean were computed to describe important variables in relation to the outcome variable, and Binary and multivariable logistic regression were used to identify independent predictors Results: The overall prevalence of risky sexual behavior was 12.8%%. Ever used alcohol ((AOR, 3.53 95% CI (1.73-7.19)), had no parental monitor (AOR, 12.21 95% CI (6.55-22.78), watching pornographic film (AOR, 2.24 95% CI (1.15-4.35), had parental discussion on SRH issues (AOR, 2.57 95% CI (1.36-4.85) and peer pressure (AOR, 2.50, 95%CI (1.20-5.21), were factors which significantly increases the odds of risky sexual behavior among youth Conclusion and recommendations: Risky sexual behaviors among high school students in Gondar city administration was very high and worrisome so that a concerted effort is needed from parents, school, health facility and policy makers to bring accepting attitude for condom use.
Creators: name: Tessema (PhD), Belay
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: No abstract available for this resource
Luttinger's theorem, superfluid vortices, and holography
Creators: name: Iqbal, Nabil
name: Liu, Hong
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Strongly coupled field theories with gravity duals can be placed at finite density in two ways: electric field flux emanating from behind a horizon, or bulk charged fields outside of the horizon that explicitly source the density. We discuss field-theoretical observables that are sensitive to this distinction. If the charged fields are fermionic, we discuss a modified Luttinger's theorem that holds for holographic systems, in which the sum of boundary theory Fermi surfaces counts only the charge outside of the horizon. If the charged fields are bosonic, we show that the the resulting superfluid phase may be characterized by the coefficient of the transverse Magnus force on a moving superfluid vortex, which again is sensitive only to the charge outside of the horizon. For holographic systems these observables provide a field-theoretical way to distinguish how much charge is held by a dual horizon, but they may be useful in more general contexts as measures of deconfined (i.e. "fractionalized") charge degrees of freedom.
description: 21 pages; version 2: minor changes, version to be published in CQG; version 3: minor changes
COMPARISON OF Sr ISOTOPIC RATIOS FROM TWO SOILS NEAR RAVENNA (ITALY) USING AQUA REGIA AND TWO-STEP SEQUENTIAL EXTRACTS
COMPARAISON DES RAPPORTS ISOTOPIQUES DU Sr DE DEUX SOLS PRÈS DE RAVENNE (ITALIE) EN UTILISANT L’AQUA REGIA ET L’EXTRACTION SÉQUENTIELLE
PARAGONE DEI RAPPORTI ISOTOPICI DELLO Sr DI DUE SUOLI PRESSO RAVENNA (ITALIA) UTILIZZANDO AQUA REGIA E L’ESTRAZIONE SEQUENZIALE
Creators: name: Castorina, Francesca; IGAG-CNR, C/O Dip.To Di Scienze Della Terra, Università “La Sapien-Za”, Roma
name: Masi, Umberto; Dipartimento Di Scienze Della Terra, Università Di Roma “La Sapienza”, Roma
Publisher: name: EQA - International Journal of Environmental QualityEQA - International Journal of Environmental Quality
Year: 2013
Subjects: Sr isotopes; soils; Ravenna; aqua regia; two-step sequential extraction
isotopes du Sr; sols; Ravenne; aqua regia; extraction séquentielle
isotopi dello Sr; suoli; Ravenna; aqua regia; estrazione sequenziale

description: The Sr-isotope ratios of several samples from a natural and an agricultural soil from Ravenna were determined using aqua regia and the two-step sequential extraction. Results indicate that the two-step extraction can provide the researcher with wider and more precise information on Sr sources, thus being a more suitable methodology for achieving scientific goals than the aqua regia extraction. Lastly, the extracts of hydrochloric acid and aqua regia display similar ranges of δ87Sr, indicating that the two procedures provide comparable information on Sr sources.
description: Les rapports isotopiques du Sr ont été déterminés dans les échantillons d’un sol naturel et d’un autre agricole de la zone de Ravenne en utilisant l’aqua regia et l’extraction séquentielle. Les résultats indiquent que l’extraction séquentielle peut fournir une information plus large et plus détaillée sur les sources du Sr. Elle représente donc une méthodologie plus adaptée aux buts scientifiques que l’extraction avec aqua regia. Enfin, les extraits avec aqua regia et acide chlorhydrique fournissent des valeurs comparables de δ87Sr, indiquant que les deux procédures donnent des informations analogues sur les sources de Sr.
description: Sono stati determinati i rapporti isotopici dello Sr di parecchi campioni di un suolo naturale e uno agricolo della zona di Ravenna usando aqua regia e l’estrazione sequenziale. I risultati indicano che l’estrazione sequenziale può fornire una più ampia e puntuale informazione sulle sorgenti dello Sr,   essendo quindi una metodica più adatta a conseguire gli scopi scientifici di quanto non sia l’estrazione con aqua regia. Infine gli estratti in aqua regia e acido cloridrico forniscono valori simili di δ87Sr, indicando che le due procedure danno informazioni analoghe sulle sorgenti dello Sr.
description: EQA - International Journal of Environmental Quality; Vol 4 (2010); 7-14
Two dimensional hydrodynamic instabilities in shear flows
Creators: name: Guha, Anirban
Publisher: name: University of British Columbia
Year: 2013

description: Hydrodynamic instabilities occurring in two dimensional shear flows have been investigated. First, the process of resonant interaction between two progressive interfacial waves is studied. Such interaction produces exponentially growing instabilities in idealized, homogeneous or density stratified, inviscid shear layers. It is shown that two oppositely propagating interfacial waves, having arbitrary initial amplitudes and phases, eventually phase-lock, provided they satisfy a particular condition. Three types of shear instabilities - Kelvin Helmholtz, Holmboe and Taylor have been studied. The above-mentioned condition provides a range of unstable wavenumbers for each instability type, and this range matches the predictions of the canonical normal-mode based linear stability theory. The non-linear evolution of Kelvin-Helmholtz (KH) instability has been studied. The commonly known manifestation of KH is in the form of spiral billows. However, KH evolving from a piecewise linear shear layer is remarkably different; it is characterized by elliptical vortices of constant vorticity connected via thin braids. Using direct numerical simulation and contour dynamics, it is shown that the interaction between two counter-propagating vorticity waves is solely responsible for this KH formation. The oscillation of the vorticity wave amplitude, the rotation and nutation of the elliptical vortex, and straining of the braids have been investigated. Finally, the linear stability of plane Couette-Poiseuille flow in the presence of a cross-flow is studied. The base flow is characterized by the cross flow Reynolds number, Reinj and the dimensionless wall velocity, k. Corresponding to each dimensionless wall velocity, k ∈ [0,1], two ranges of Reinj exist where unconditional stability is observed. In the lower range of Reinj , for modest k we have a stabilization of long wavelengths leading to a cut-off Reinj. As Reinj is increased, we see first destabilization and then stabilization at very large Reinj. Analysis of the eigenspectrum suggests the cause of instability is due to resonant interactions of Tollmien-Schlichting waves.
Prevalence and Associated Risk Factors of Neisseria gonorrhoeae, Treponema pallidum, Trichomonas vaginalis and Candida species Infections among Symptomatic Patients Attending at Gondar Town Hospitals and Health Centers, Northwest Ethiopia
Creators: name: Ambachew, Rozina
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2014

description: No abstract available for this resource
Blockchain-Infused AI Revolutionizing Health Data Security
Creators: name: Gunnam Srinuvasu, R S S V Prasad, Madugula Sri Krishna Sai Mahalakshmi, Nakka Vijaya Lakshmi, Boggavarapu Venkata Durga Sowmya, Ms.MD.Apsar Jaha
Publisher: name: Zenodo
Year: 2025

description: In the modern cyber world, data is essential for Artificial Intelligence (AI) algorithms to extract insightsfrom historical data for decision-making, such as product recommendations, healthcare services, or educational institutions. However, not all data, such as sensitive Patient Health Data, can be made publicly available due to privacy concerns. Traditional service providers store user data on third-party servers, often selling it for profit, leaving users with no control. To address this, this project introduces Private Data Centres (PDC) with Blockchain and AI techniques to secure user data. PDC ensures ownership-controlled data sharing via blockchain, intelligent access control with AI-driven verification, and a rewards system to encourage data sharing. This contrasts with traditional Blockchain-based healthcare systems, which use Differential Privacy and Federated Learning t o protect data privacy while focusing on \data utility. The PDC framework promotes data ownership and incentivizes users to participate in data sharing, offering a secure, user-centric approach.
Large deviations in boundary-driven systems: Numerical evaluation and effective large-scale behavior
Creators: name: Bunin, Guy
name: Kafri, Yariv
name: Podolsky, Daniel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study rare events in systems of diffusive fields driven out of equilibrium by the boundaries. We present a numerical technique and use it to calculate the probabilities of rare events in one and two dimensions. Using this technique, we show that the probability density of a slowly varying configuration can be captured with a small number of long wave-length modes. For a configuration which varies rapidly in space this description can be complemented by a local equilibrium assumption.
Editorial
Creators: name: Dalley, Tessa
Publisher: name: Art Therapy Online
Year: 2015

description: Art Therapy Online, Vol 1 No 1 (2010)
description: The launch of Art Therapy Online (ATOL) is an exciting new venture. This open-access and peer-reviewed journal will promote an international forum for discussion and thought by addressing the multi-cultural development of the visual arts in therapeutic work around the world. Online publication will allow a strong emphasis on the image or art object, pushing these to the forefront in thinking about clinical practice, research and the shaping of our discipline.
Carbonic Acid Revisited: Vibrational Spectra, Energetics and the Possibility of Detecting an Elusive Molecule
Creators: name: Huber, Stefan E.
name: Dalnodar, Silvia
name: Kausch, Wolfgang
name: Kimeswenger, Stefan
name: Probst, Michael
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We calculate harmonic frequencies of the three most abundant carbonic acid conformers. For this, different model chemistries are investigated with respect to their benefits and shortcomings. Based on these results we use perturbation theory to calculate anharmonic corrections at the ωB97XD/aug-cc-pVXZ, X=D,T,Q, level of theory and compare them with recent experimental data and theoretical predictions. A discrete variable representation method is used to predict the large anharmonic contributions to the frequencies of the stretching vibrations in the hydrogen bonds in the carbonic acid dimer. Moreover, we re-investigate the energetics of the formation of the carbonic acid dimer from its constituents water and carbon dioxide using a high-level extrapolation method. We find that the ωB97XD functional performs well in estimating the fundamental frequencies of the carbonic acid conformers. Concerning the reaction energetics, the accuracy of ωB97XD is even comparable to the high-level extrapolation method. We discuss possibilities to detect carbonic acid in various natural environments such as Earth's and Martian atmospheres.
description: 22 pages, 2 figures, 5 tables. Copyright 2012 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. The following article appeared in AIP Advances 2, 032180 (2012) and may be found at http://link.aip.org/link/?ADV/2/032180
ORGANIC AND INORGANIC CONTAMINANT MONITORING IN SOIL: A CASE STUDY IN TREVISO PROVINCE
MONITORAGE DES CONTAMINANTS ORGANIQUES ET INORGANIQUES DANS LE SOL: UN CAS D’ÉTUDE DANS LA PROVINCE DE TRÉVISE
MONITORAGGIO DI CONTAMINANTI ORGANICI ED INORGANICI NEL SUOLO: UN CASO DI STUDIO IN PROVINCIA DI TREVISO
Creators: name: Giandon, Paolo; ARPAV Servizio Suoli, Treviso
name: Dalla Rosa, Andrea
Publisher: name: EQA - International Journal of Environmental QualityEQA - International Journal of Environmental Quality
Year: 2013
Subjects: soil; organic pollutants; metals
sol; polluants organiques; métaux
suolo; inquinanti organici; metalli

description: The present study concerns the environmental monitoring of a site that is close to the industrial area of Pederobba (Treviso  province) which is characterized by the presence of a cement factory. Successively 43 soil samples were collected-including 26 surface samples and 17 deep ones. Each soil sample was analyzed and organic (PAHs, PCBs and PCDD/Fs) and inorganic (metals and metalloids) parameters were measured. Analytical results showed some values above contamination threshold levels in residential districts regarding PCDD/F, copper and cobalt.
description: La présente étude concerne le monitorage de l'environnement effectué près de la zone industrielle de Pederobba dans la province de Trévise caractérisée notamment par la présence d'une cimenterie. Dans les phases successives ont été recueillis 43 échantillons de sol dont 26 en surface et 17 en profondeur sur lesquels ont été déterminés des paramètres organiques (HAP, PCB et PCDD/F) et inorganiques (métaux et métalloïdes). Les résultats d'analyse ont montré plusieurs dépassements des concentrations-seuils de contamination dans les terrains utilisés à des fins résidentielles pour les paramètres PCDD/F, cuivre et cobalt.
description: Il presente studio riguarda un monitoraggio ambientale condotto in prossimità dell’area industriale di Pederobba in provincia di Treviso caratterizzato in particolare dalla presenza di un cementificio. In fasi successive sono stati raccolti 43 campioni di suolo di cui 26 in superficie e 17 profondi su cui sono stati determinati parametri organici (IPA, PCB e PCDD/F) ed inorganici (metalli e metalloidi). I risultati analitici hanno evidenziato alcuni superamenti delle concentrazioni soglia di contaminazione per i terreni ad uso residenziale per i parametri PCDD/F, Rame e Cobalto.
description: EQA - International Journal of Environmental Quality; Vol 4 (2010); 45-52
Interface control of emergent ferroic order in Ruddlesden-Popper Sr$_{n+1}$Ti$_n$O$_{3n+1}$
Creators: name: Birol, Turan
name: Benedek, Nicole A.
name: Fennie, Craig J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have discovered from first-principles an unusual polar state in the low n Sr$_{n+1}$Ti$_n$O$_{3n+1}$ Ruddlesden-Popper (RP) layered perovskites in which ferroelectricity is nearly degenerate with antiferroelectricity, a relatively rare form of ferroic order. We show that epitaxial strain plays a key role in tuning the "perpendicular coherence length" of the ferroelectric mode, and does not induce ferroelectricity in these low dimensional RP materials as is well known to occur in SrTiO$_3$. These systems present an opportunity to manipulate the coherence length of a ferroic distortion in a controlled way, without disorder or a free surface.
title: Diffuse Thyroid Disease: Radio-pathological correlation
Creators: name: Castro Consiglio, Francisco
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Pathology
subject: Biopsy
subject: Ultrasound
subject: PET
subject: CT
subject: Thyroid / Parathyroids
subject: Head and neck
subject: CNS

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To review the thyroid pathology with diffuse involvement of the gland, the characteristic radiological findings and the histological...
title: Advanced Practice CT Colonography Radiographer Reporting Audit
Creators: name: Edwards, Louisa
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Quality assurance
subject: Education and training
subject: Diagnostic procedure
subject: Colonography CT
subject: Audit and standards
subject: CT-Colonography
subject: CT
subject: Radiographers
subject: Gastrointestinal tract
subject: Colon

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The aim of the audit was to assess the accuracy of the newly implemented CT Colonography reporting radiographer to establish if their work achieved the required standards to be able to independently report. Following successful completion of a...
title: Differential diagnosis of intracranial ring-enhancing lesions: a practical approach
Creators: name: Manzella, Adonis
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Contrast agent-intravenous
subject: Diagnostic procedure
subject: MR-Spectroscopy
subject: MR
subject: CT
subject: Oncology
subject: Neuroradiology brain
subject: CNS
subject: Education
subject: Infection
subject: Neoplasia
subject: Inflammation

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1. To discuss the most common brain ring-enhancing lesions emphasizing the differential diagnosis. 2. To describe some important imaging characteristics that may help narrow the differential diagnosis. 3. To illustrate these lesions using computed...
Local implementations of non-local quantum gates in linear entangled channel
Creators: name: Saha, Debashis
name: Nandan, Sanket
name: Panigrahi, Prasanta K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this paper, we demonstrate n-party controlled unitary gate implementations locally on arbitrary remote state through linear entangled channel where control parties share entanglement with the adjacent control parties and only one of them shares entanglement with the target party. In such a network, we describe the protocol of simultaneous implementation of controlled-Hermitian gate starting from three party scenario. We also explicate the implementation of three party controlled-Unitary gate, a generalized form of Toffoli gate and subsequently generalize the protocol for n-party using minimal cost.
description: 6 pages, 4 figures and 7 tables
title: Normal variants and congenital anomalies of the pancreatobiliary tract in adults: you can´t see what you don’t know.
Creators: name: Camargo Montanari, Manuela
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Education and training
subject: Congenital
subject: Normal variants
subject: Imaging sequences
subject: Diagnostic procedure
subject: Ultrasound
subject: MR-Cholangiography
subject: CT
subject: Biliary Tract / Gallbladder
subject: Anatomy
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: - Highlight the imaging features of congenital anomalies and normal variants of the pancreatobiliary tract with contemporary imaging...
On Symmetric and Asymmetric Light Dark Matter
Creators: name: Lin, Tongyan
name: Yu, Hai-Bo
name: Zurek, Kathryn M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine cosmological, astrophysical and collider constraints on thermal dark matter (DM) with mass mX in the range 1 MeV to 10 GeV. Cosmic microwave background (CMB) observations, which severely constrain light symmetric DM, can be evaded if the DM relic density is sufficiently asymmetric. CMB constraints require the present anti-DM to DM ratio to be less than 2*10^{-6} (10^{-1}) for DM mass mX = 1 MeV (10 GeV) with ionizing efficiency factor f ~ 1. We determine the minimum annihilation cross section for achieving these asymmetries subject to the relic density constraint; these cross sections are larger than the usual thermal annihilation cross section. On account of collider constraints, such annihilation cross sections can only be obtained by invoking light mediators. These light mediators can give rise to significant DM self-interactions, and we derive a lower bound on the mediator mass from elliptical DM halo shape constraints. We find that halo shapes require a mediator with mass mphi > 4 * 10^{-2} MeV (40 MeV) for mX = 1 MeV (10 GeV). We map all of these constraints to the parameter space of DM-electron and DM-nucleon scattering cross sections for direct detection. For DM-electron scattering, a significant fraction of the parameter space is already ruled out by beam-dump and supernova cooling constraints.
description: 21 pages, 6 figures; v2: journal version
Renormalisation group improvement of scalar field inflation
Creators: name: Contillo, Adriano
name: Hindmarsh, Mark
name: Rahmede, Christoph
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: We study quantum corrections to Friedmann-Robertson-Walker cosmology with a scalar field under the assumption that the dynamics are subject to renormalisation group improvement. We use the Bianchi identity to relate the renormalisation group scale to the scale factor and obtain the improved cosmological evolution equations. We study the solutions of these equations in the renormalisation group fixed point regime, obtaining the time-dependence of the scalar field strength and the Hubble parameter in specific models with monomial and trinomial quartic scalar field potentials. We find that power-law inflation can be achieved in the renormalisation group fixed point regime with the trinomial potential, but not with the monomial one. We study the transition to the quasi-classical regime, where the quantum corrections to the couplings become small, and find classical dynamics as an attractor solution for late times. We show that the solution found in the renormalisation group fixed point regime is also a cosmological fixed point in the autonomous phase space. We derive the power spectrum of cosmological perturbations and find that the scalar power spectrum is exactly scale-invariant and bounded up to arbitrarily small times, while the tensor perturbations are tilted as appropriate for the background power-law inflation. We specify conditions for the renormalisation group fixed point values of the couplings under which the amplitudes of the cosmological perturbations remain small.
description: 17 pages; 2 figures
Large bubble rupture sparks fast liquid jet
Creators: name: Séon, Thomas
name: Antkowiak, Arnaud
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This Letter presents the novel experimental observation of long and narrow jets shooting out in disconnecting large elongated bubbles. We investigate this phenomenon by carrying out experiments with various viscosities, surface tensions, densities and nozzle radii. We propose a universal scaling law for the jet velocity, which unexpectedly involves the bubble height to the power 3/2. This anomalous exponent suggests an energy focusing phenomenon. We demonstrate experimentally that this focusing is purely gravity-driven and independent of the pinch-off singularity.
title: Necrotizing Pneumonia: a rare yet important pathology.
Creators: name: Valle Franco, Marta
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Pathology
subject: Infection
subject: Diagnostic procedure
subject: CT-High Resolution
subject: CT-Angiography
subject: CT
subject: Thorax
subject: Lung

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: - To know the incidence of necrotizing pneumonia in our health area in the last 5 years. - Describe the most relevant radiological findings for its correct...
A UBV Photometric Survey of the Kepler Field
Creators: name: Everett, Mark E.
name: Howell, Steve B.
name: Kinemuchi, Karen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the motivations for and methods we used to create a new ground-based photometric survey of the field targeted by the NASA Kepler Mission. The survey contains magnitudes for 4414002 sources in one or more of the UBV filters, including 1862902 sources detected in all three filters. The typical completeness limit is U~18.7, B~19.3, and V~19.1 magnitudes, but varies by location. The area covered is 191 square degrees and includes the areas on and between the 42 Kepler CCDs as well as additional areas around the perimeter of the Kepler field. The major significance of this survey is our addition of U to the optical bandpass coverage available in the Kepler Input Catalog, which was primarily limited to the redder SDSS griz and D51 filters. The U coverage reveals a sample of the hottest sources in the field, many of which are not currently targeted by Kepler, but may be objects of astrophysical interest.
description: 19 pages, 6 figures, in press at PASP A slightly-revised version of previous upload. A few changes to the text now more closely reflect the published manuscript. URLs for downloading data are included
title: Intraosseal migration of calcifications in calcific tendinitis of the shoulder; a complication to consider.
Creators: name: Martínez  González, Lara
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Musculoskeletal bone
subject: MR
subject: Technical aspects
subject: Calcifications / Calculi

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: - To assess the incidence of intraosseous migration of calcifications as a complication in the calcific tendinitis of the shoulder diagnosed in our center. - Review the most relevant signs for the diagnosis, mainly through magnetic resonance (MR)...
The Hausdorff dimension of the CLE gasket
Creators: name: Miller, Jason
name: Sun, Nike
name: Wilson, David B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The conformal loop ensemble $\mathrm{CLE}_κ$ is the canonical conformally invariant probability measure on noncrossing loops in a proper simply connected domain in the complex plane. The parameter $κ$ varies between $8/3$ and $8$; $\mathrm{CLE}_{8/3}$ is empty while $\mathrm {CLE}_8$ is a single space-filling loop. In this work, we study the geometry of the $\mathrm{CLE}$ gasket, the set of points not surrounded by any loop of the $\mathrm{CLE}$. We show that the almost sure Hausdorff dimension of the gasket is bounded from below by $2-(8-κ)(3κ-8)/(32κ)$ when $4
description: Published in at http://dx.doi.org/10.1214/12-AOP820 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
title: Frequent orbital tumors: key elements for differential diagnosis
Creators: name: LAHSEN, FRANCISCA
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Neoplasia
subject: Education
subject: MR
subject: CT
subject: Head and neck

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To know the imaging findings of frequent orbital masses with emphasis on differentiating...
Heavy-light decay topologies as a new strategy to discover a heavy gluon
Creators: name: Bini, Cesare
name: Contino, Roberto
name: Vignaroli, Natascia
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the collider phenomenology of the lightest Kaluza-Klein excitation of the gluon, G*, in theories with a warped extra dimension. We do so by means of a two-site effective lagrangian which includes only the lowest-lying spin-1 and spin-1/2 resonances. We point out the importance of the decays of G* to one SM plus one heavy fermion, that were overlooked in the previous literature. It turns out that, when kinematically allowed, such heavy-light decays are powerful channels for discovering the G*. In particular, we present a parton-level Montecarlo analysis of the final state Wtb that follows from the decay of G* to one SM top or bottom quark plus its heavy partner. We find that at \sqrt{s} = 7 TeV and with 10 fb^{-1} of integrated luminosity, the LHC can discover a KK gluon with mass in the range M_{G*} = (1.8 - 2.2) TeV if its coupling to a pair of light quarks is g_{G*qqbar} = (0.2-0.5) g_3. The same process is also competitive for the discovery of the top and bottom partners as well. We find, for example, that the LHC at \sqrt{s} = 7 TeV can discover a 1 TeV KK bottom quark with an integrated luminosity of (5.3 - 0.61) fb^{-1} for g_{G*qqbar} = (0.2-0.5) g_3.
description: 36 pages, 13 figures. v2: a few typos corrected, comments added, version published in JHEP
title: Serous borderline ovarian tumors: tips, tricks and mimics on magnetic resonance imaging
Creators: name: Sahin, Hilal
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Genital / Reproductive system female
subject: Oncology
subject: MR
subject: MR-Diffusion/Perfusion
subject: Diagnostic procedure
subject: Multidisciplinary cancer care

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To review magnetic resonance (MR) imaging features of serous borderline ovarian tumours (SBOT) To demonstrate tips and tricks for challenging diagnosis of SBOT To review important mimickers of SBOT. To review the clinical approach to SBOT including...
Bayesian Estimation of a Gaussian source in Middleton's Class-A Impulsive Noise
Creators: name: Banelli, Paolo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Information Theory (cs.IT)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: The paper focuses on minimum mean square error (MMSE) Bayesian estimation for a Gaussian source impaired by additive Middleton's Class-A impulsive noise. In addition to the optimal Bayesian estimator, the paper considers also the soft-limiter and the blanker, which are two popular suboptimal estimators characterized by very low complexity. The MMSE-optimum thresholds for such suboptimal estimators are obtained by practical iterative algorithms with fast convergence. The paper derives also the optimal thresholds according to a maximum-SNR (MSNR) criterion, and establishes connections with the MMSE criterion. Furthermore, closed form analytic expressions are derived for the MSE and the SNR of all the suboptimal estimators, which perfectly match simulation results. Noteworthy, these results can be applied to characterize the receiving performance of any multicarrier system impaired by a Gaussian-mixture noise, such as asymmetric digital subscriber lines (ADSL) and power-line communications (PLC).
description: 30 pages, 13 figures, part of this work has been submitted to IEEE Signal Processing Letters
Circulating microRNAs as biomarkers for early cancer detection
Creators: name: MacLellan, Sara Ann
Publisher: name: University of British Columbia
Year: 2013

description: Cancer is a major cause of death worldwide. Patients diagnosed at an early stage have an improved prognosis and therefore efforts have been made into the development of methods to detect tumors at their earliest stages. MicroRNAs (miRNAs) are non-coding RNAs that negatively regulate gene expression by interfering with the translation of target mRNAs. Studies have found that miRNAs are present at stable levels in the circulation and that they are differentially expressed in patients with various diseases. In this thesis we used qRT-PCR to assess the utility of 742 serum miRNAs as biomarkers for early cancer detection. In aim 1 we examined the levels of serum miRNAs in patients with high-risk oral lesions. We identified five miRNAs that are significantly deregulated in the serum of these patients compared to demographically matched, non-cancer controls. Additionally, these miRNAs correspondingly decreased or increased after surgical resection of the lesion. In aim 2 we examined the effect of hemolysis, fasting, and smoking on the serum miRNA levels of healthy individuals. We also compared serum miRNA profiles of samples taken from healthy individuals over different time periods. We found that mechanical hemolysis of blood samples simulating blood drawing can significantly alter serum miRNA quantification and should be taken into consideration when identifying endogenous controls and candidate biomarkers for circulating miRNA studies. Fasting, smoking, and a time period up to 17 months between samples were demonstrated to not have a significant effect on the overall serum miRNA profiles of healthy individuals. In aim 3 we compared the miRNA profiles of paired samples collected during surgery from the same patient from a) pulmonary venous effluent draining the tumor vascular bed (tumor associated samples) and b) systemic arterial blood to identify lung adenocarcinoma biomarkers. We found 35 miRNAs that were significantly up-regulated in tumor-associated serum samples. However, when we tested the candidate miRNAs in cancer versus non-cancer peripheral venous blood samples they were not significantly differentially expressed. The results presented in this thesis demonstrate the need for standardized protocols for circulating miRNA studies and provide evidence for the utility of serum miRNAs as biomarkers of disease.
Michel Meyer, La rhétorique, l’argumentation et les sciences humaines, séminaire du Collège de France, mars 2011
Creators: name: Morgante, Jole
Publisher: name: Università degli  Studi di Milano
Year: 2012

description: Michel Meyer, La rhétorique, l’argumentation et les sciences humaines, séminaire du Collège de France, mars 2011
description: Altre Modernità, No 7 (2012): Paradisi
Evidence for an excess of B -> D(*) Tau Nu decays
Creators: name: The BaBar Collaboration
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Based on the full BaBar data sample, we report improved measurements of the ratios R(D(*)) = B(B -> D(*) Tau Nu)/B(B -> D(*) l Nu), where l is either e or mu. These ratios are sensitive to new physics contributions in the form of a charged Higgs boson. We measure R(D) = 0.440 +- 0.058 +- 0.042 and R(D*) = 0.332 +- 0.024 +- 0.018, which exceed the Standard Model expectations by 2.0 sigma and 2.7 sigma, respectively. Taken together, our results disagree with these expectations at the 3.4 sigma level. This excess cannot be explained by a charged Higgs boson in the type II two-Higgs-doublet model. We also report the observation of the decay B -> D Tau Nu, with a significance of 6.8 sigma.
description: Expanded section on systematics, text corrections, improved the format of Figure 2 and included the effect of the change of the Tau polarization due to the charged Higgs
Maximal equilateral sets
Creators: name: Swanepoel, Konrad J.
name: Villa, Rafael
Publisher: name: arXiv
Year: 2011
Subjects: subject: Metric Geometry (math.MG)
subject: Combinatorics (math.CO)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46B20 (Primary) 46B85, 52A21, 52C17 (Secondary)

description: A subset of a normed space $X$ is called equilateral if the distance between any two points is the same. Let $m(X)$ be the smallest possible size of an equilateral subset of $X$ maximal with respect to inclusion. We first observe that Petty's construction of a $d$-dimensional $X$ of any finite dimension $d\geq 4$ with $m(X)=4$ can be generalised to give $m(X\oplus_1\mathbb{R})=4$ for any $X$ of dimension at least 2 which has a smooth point on its unit sphere. By a construction involving Hadamard matrices we then show that for any set $Γ$, $m(\ell_p(Γ))$ is finite and bounded above by a function of $p$, for all $1\leq p<2$. Also, for all $p\in[1,\infty)$ and $d\in\mathbb{N}$ there exists $c=c(p,d)>1$ such that $m(X)\leq d+1$ for all $d$-dimensional $X$ with Banach-Mazur distance less than $c$ from $\ell_p^d$. Using Brouwer's fixed-point theorem we show that $m(X)\leq d+1$ for all $d$-dimensional $X$ with Banach-Mazur distance less than 3/2 from $\ell_\infty^d$. A graph-theoretical argument furthermore shows that $m(\ell_\infty^d)=d+1$. The above results lead us to conjecture that $m(X)\leq 1+\dim X$ for all finite-dimensional normed spaces $X$.
description: 15 pages. This version incorporates some suggestions from a referee obtained after galley proofs. Equations (18) and (23) are corrected