cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Parálisis de cuerdas vocales
Creators: name: Rodríguez  Díaz, Ricardo
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: CT
subject: Neuroradiology peripheral nerve

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Repaso de la anatomía del nervio vago y laríngeo recurrente. Revisión de las diversas causas de parálisis de las cuerdas vocales y de los hallazgos diagnósticos más frecuentes en pruebas de...
title: Página web de casos radiológicos dirigidos a estudiantes de medicina
Creators: name: Añorbe Mendívil, Enrique
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: eLearning
subject: Education
subject: Computer applications

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
El objetivo de esta comunicación es presentar www.radiologiaparaestudiantes.com ,
una página web de casos de radiología en castellano que puede servir como ayuda en la enseñanza de la radiología en la...
"Polsko ukraińska współpraca instytucji przedstawicielskich reprezentujących rektorów, na rzecz doskonalenia działania uczelni" wyniki i kluczowe wnioski z realizacji projektu w latach 2018 2021
Creators: name: Degtyarova, Iryna
Publisher: name: Zenodo
Year: 2021

description: Prezentacja została przedstawiona w ramach Polsko-Ukraińskiego Forum Rektorów w Politechnice Warszawskiej w dniu 9 listopada 2021 r. Prezentacja w dwóch językach - polskim i ukraińskim. Презентація була представлена під час Польсько-українського форуму ректорів у Варшавській Політехніці 9 листопада 2021 р. Презентація двома мовами - польською та українською.
Decomposition of high-rank factorized unitary coupled-cluster operators using ancilla and multi-qubit controlled low-rank counterparts
Creators: name: Xu, Luogen
name: Lee, Joseph T.
name: Freericks, J. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The factorized form of the unitary coupled-cluster approximation is one of the most promising methodologies to prepare trial states for strongly correlated systems within the variational quantum eigensolver framework. The factorized form of the UCC ansatz can be systematically applied to a reference state to generate the desired entanglement. The difficulty associated with such an approach is the requirement of simultaneously entangling a growing number of qubits, which quickly exceeds the hardware limitations of today's quantum machines. In particular, while circuits for singles and double excitations can be performed on current hardware, higher-rank excitations require too many gate operations. In this work, we propose a set of new schemes that trade off using extra qubits for a reduced gate depth to decompose high-rank UCC excitation operators into significantly lower depth circuits. These results will remain useful even when fault-tolerant machines are available to reduce the overall state-preparation circuit depth.
Five types of blow-up in a semilinear fourth-order reaction-diffusion equation: an analytic-numerical approach
Creators: name: Galaktionov, V. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K55, 35K40

description: Five types of blow-up patterns that can occur for the 4th-order semilinear parabolic equation of reaction-diffusion type $$ u_t= -Δ^2 u + |u|^{p-1} u \quad {in} \quad \ren \times (0,T), p>1, \quad \lim_{t \to T^-}\sup_{x \in \ren} |u(x,t)|= +\iy, $$ are discussed. For the semilinear heat equation $u_t= Δu+ u^p$, various blow-up patterns were under scrutiny since 1980s, while the case of higher-order diffusion was studied much less, regardless a wide range of its application.
description: 41 pages, 27 figures
Classification of Nail Abnormalities using Convolutional Neural Network
Creators: name: Sajjaporn Waijanya
name: Nuttachot Promrit
Publisher: name: Faculty of Informatics, Mahasarakham University
Year: 2023
Subjects: Abnormal Nails
Image Classification
Neural Network
Convolutional Neural Network

description: Journal of Applied Informatics and Technology, 5, 1, 18-35
Invariance principle for the random conductance model with unbounded conductances
Creators: name: Barlow, M. T.
name: Deuschel, J. -D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K37, 60F17, 82C41 (Primary)

description: We study a continuous time random walk $X$ in an environment of i.i.d. random conductances $μ_e\in[1,\infty)$. We obtain heat kernel bounds and prove a quenched invariance principle for $X$. This holds even when ${\mathbb{E}}μ_e=\infty$.
description: Published in at http://dx.doi.org/10.1214/09-AOP481 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Magnetic properties of substitutional Mn in (110) GaAs surface and subsurface layers
Creators: name: Strandberg, T. O.
name: Canali, C. M.
name: MacDonald, A. H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Motivated by recent STM experiments, we present a theoretical study of the electronic and magnetic properties of the Mn-induced acceptor level obtained by substituting a single Ga atom in the (110) surface layer of GaAs or in one of the atoms layers below the surface. We employ a kinetic-exchange tight-binding model in which the relaxation of the (110) surface is taken into account. The acceptor wave function is strongly anisotropic in space and its detailed features depend on the depth of the sublayer in which the Mn atom is located. The local-density-of-states (LDOS) on the (110) surface associated with the acceptor level is more sensitive to the direction of the Mn magnetic moment when the Mn atom is located further below the surface. We show that the total magnetic anisotropy energy of the system is due almost entirely to the dependence of the acceptor level energy on Mn spin orientation, and that this quantity is strongly dependent on the depth of the Mn atom.
description: 14 pages, 13 figures
Implementation of the Duality between Wilson loops and Scattering Amplitudes in QCD
Creators: name: Makeenko, Yuri
name: Olesen, Poul
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We generalize modern ideas about the duality between Wilson loops and scattering amplitudes in ${\cal N}$=4 SYM to large-N (or quenched) QCD. We show that the area-law behavior of asymptotically large Wilson loops is dual to the Regge-Veneziano behavior of scattering amplitudes at high energies and fixed momentum transfer, when quark mass is small and/or the number of particles is large. We elaborate on this duality for string theory in a flat space, identifying the asymptotes of the disk amplitude and the Wilson loop of large-N QCD.
description: REVTex, 6 pages, 1 figure; v3: refs added; v4pp. to appear in PRL
Dissipative superfluids, from cold atoms to quark matter
Creators: name: Mannarelli, Massimo
name: Manuel, Cristina
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Some results about dissipative processes in superfluids are presented. We focus on fermionic superfluidity and restrict our analysis to the contribution of phonons to bulk viscosity, shear viscosity and thermal conductivity. At sufficiently low temperatures phonons give the dominant contribution to the transport coefficients if all the other low energy excitation of the system are gapped. We first consider a system of cold fermionic atoms close to the unitarity limit. Then we turn to the superfluid phase of quark matter that may be realized at high baryonic density.
description: 10 pages, Lecture given at "Three Days of Strong Interactions", Wroclaw (Poland) 9. - 11. VII. 2009
Signatures of Noncommutative Geometry in Muon Decay for Nonsymmetric Gravity
Creators: name: Singh, Dinesh
name: Mobed, Nader
name: Ouimet, Pierre-Philippe
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown how to identify potential signatures of noncommutative geometry within the decay spectrum of a muon in orbit near the event horizon of a microscopic Schwarzschild black hole. This possibility follows from a re-interpretation of J.W. Moffat's nonsymmetric theory of gravity, first published in Phys. Rev. D 19, 3554 (1979), where the antisymmetric part of the metric tensor manifests the hypothesized noncommutative geometric structure throughout the manifold. It is further shown that for a given sign convention, the predicted signatures counteract the effects of curvature-induced muon stabilization predicted by D. Singh and N. Mobed in Phys. Rev. D 79, 024026 (2009). While it is unclear whether evidence for noncommutative geometry may be found at the Large Hadron Collider (LHC) anytime soon, this approach at least provides a useful direction for future quantum gravity research based on the ideas presented here.
description: 4 pages; REVTeX file; 1 figure
Morphological and physiological responses of apple trees under photoselective colored nets
Creators: name: Bastias, Richard <1973>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: AGR/03 Arboricoltura generale e coltivazioni arboree

description: In recent years and thanks to innovative technological advances in supplemental lighting sources and photo-selective filters, light quality manipulation (i.e. spectral composition of sunlight) have demonstrated positive effects on plant performance in ornamentals and vegetable crops.  However, this aspect has been much less studied in fruit trees due to the difficulty of conditioning the light environment of orchards. The aim of the present PhD research was to study the use of different colored nets with selective light transmission in the blue (400 – 500 nm), red (600 – 700 nm) and near infrared (700 – 1100 nm) wavelengths as a tool to the light quality management and its morphological and physiological effects in field-grown apple trees. Chapter I provides a review the current status on physiological and technological advances on light quality management in fruit trees. Chapter II shows the main effect of colored nets on morpho-anatomical (stomata density, mesophyll structure and leaf mass area index) characteristics in apple leaves. Chapter III provides an analysis about the effect of micro-environmental conditions under colored nets on leaf stomatal conductance and leaf photosynthetic capacity. Chapter IV describes a study approach to evaluate the impact of colored nets on fruit growth potential in apples. Summing up results obtained in the present PhD dissertation clearly demonstrate that light quality management through photo-selective colored nets presents an interesting potential for the manipulation of plant morphological and physiological traits in apple trees. Cover orchards with colored nets might be and alternative technology to address many of the most important challenges of modern fruit growing, such as: the need for the efficient use of natural resources (water, soil and nutrients) the reduction of environmental impacts and the mitigation of possible negative effects of global climate change.
Birational maps between Calabi-Yau manifolds associated to webs of quadrics
Creators: name: Michalek, Mateusz
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We consider two varieties associated to a web of quadrics W in the projective space of dimension 7. One is the base locus and the second one is the double cover of the three dimensional projective space branched along the determinant surface of W. We show that small resolutions of these varieties are Calabi-Yau manifolds. We compute their Betti numbers and show that they are not birational in the generic case. The main result states that if the base locus of W contains a plane then in the generic case the two varieties are birational.
Quaternary stratigraphy and geomorphology of lower Bridge River valley, British Columbia
Creators: name: Howes, Don Edwin
Publisher: name: University of British Columbia
Year: 2010

description: Bridge River is an east-flowing tributary of Fraser River originating in the Coast Mountains of British Columbia. Its confluence with the Fraser River is near the village of Lillooet. This study encompasses the lower 15 miles (24 km) of Bridge River Valley. The purpose of the study is: (1) to describe and reconstruct the local Quaternary events and relate them to the regional chronology, (2) to produce a surficial geology map, at a scale of 1:50,000. Lacustrine, ice contact fluvio-glacial, fluvio-glacial (lacking ice contact features), glacial, alluvial fan and recent deposits occur here. From their characteristics and stratigraphic relationships, two alternative Quaternary chronologies can be reconstructed: A: Silts and clays deposited in a proglacial lake were subsequently overridden and partly deformed by ice of the last glaciation. Late-glacial aggradation of as much as 400 feet (120 m) of outwash material was succeeded by the fluvial degradation and terracing which continues at present. B: The outwash material represents two phases of proglacial deposition that were preceded by a glacial interval, and separated by the glacial lake phase and the ensuing glaciation. The latter, Chronology B, is favoured. This has been tentatively correlated with the Pleistocene chronology in the adjacent part of Fraser River Valley.
Auto Tuning of Hadoop and Spark parameters
Creators: name: Patanshetti, Tanuja
name: Pawar, Ashish Anil
name: Patel, Disha
name: Thakare, Sanket
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Data of the order of terabytes, petabytes, or beyond is known as Big Data. This data cannot be processed using the traditional database software, and hence there comes the need for Big Data Platforms. By combining the capabilities and features of various big data applications and utilities, Big Data Platforms form a single solution. It is a platform that helps to develop, deploy and manage the big data environment. Hadoop and Spark are the two open-source Big Data Platforms provided by Apache. Both these platforms have many configurational parameters, which can have unforeseen effects on the execution time, accuracy, etc. Manual tuning of these parameters can be tiresome, and hence automatic ways should be needed to tune them. After studying and analyzing various previous works in automating the tuning of these parameters, this paper proposes two algorithms - Grid Search with Finer Tuning and Controlled Random Search. The performance indicator studied in this paper is Execution Time. These algorithms help to tune the parameters automatically. Experimental results have shown a reduction in execution time of about 70% and 50% for Hadoop and 81.19% and 77.77% for Spark by Grid Search with Finer Tuning and Controlled Random Search, respectively.
description: 12 Pages, 9 Figures, 12 Tables, Published with International Journal of Engineering Trends and Technology (IJETT)
Interference alignment-based sum capacity bounds for random dense Gaussian interference networks
Creators: name: Johnson, Oliver
name: Aldridge, Matthew
name: Piechocki, Robert
Publisher: name: arXiv
Year: 2009
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We consider a dense $K$ user Gaussian interference network formed by paired transmitters and receivers placed independently at random in a fixed spatial region. Under natural conditions on the node position distributions and signal attenuation, we prove convergence in probability of the average per-user capacity $\csum/K$ to $\half \ep \log(1 + 2 \SNR)$. The achievability result follows directly from results based on an interference alignment scheme presented in recent work of Nazer et al. Our main contribution comes through an upper bound, motivated by ideas of `bottleneck capacity' developed in recent work of Jafar. By controlling the physical location of transmitter--receiver pairs, we can match a large proportion of these pairs to form so-called $ε$-bottleneck links, with consequent control of the sum capacity.
description: 23 pages
A Pornographic Image and Video Filtering Application Using Optimized Nudity Recognition and Detection Algorithm
Creators: name: Garcia, Manuel
Publisher: name: figshare
Year: 2021
Subjects: Applied Computer Science

description: The combination of multimedia technology and Internet provides an amiss channel for pornographic contents accessible by certain sensitive groups of people. Furthermore, the same channel provides the easiest medium to distribute illicit images and videos without an autonomous content supervision process. In this study, an application was developed grounded from a pixel-based approach and a skin tone detection filter to identify images and videos with a large skin color count and considered as pornographic in nature. With nudity detection algorithm as the foundation of the system, all multimedia files were preprocessed, segmented, and filtered to analyze skincolored pixels by processing in YCbCr space and then classifying it as skin or non-skin pixels. Afterwards, the percentage of skin pixels relative to the size of the frames is calculated to be part of the mean baseline for nudity and non-nudity materials. Lastly, the application classifies the files as nude or not, and then filter it. The application was evaluated by supplying a dataset of 1,239 multimedia files (Images = 986; Videos = 253) collected from the Web. On the final testing set, the application obtained a precision of 90.33% and accuracy of 80.23% using the supplied dataset.
K2-79b and K2-222b: Mass measurements of two small exoplanets with periods beyond 10 days that overlap with periodic magnetic activity signals
Creators: name: Nava, Chantanelle
name: López-Morales, Mercedes
name: Mortier, Annelies
name: Zeng, Li
name: Giles, Helen A. C.
name: Bieryla, Allyson
name: Vanderburg, Andrew
name: Buchhave, Lars A.
name: Poretti, Ennio
name: Saar, Steven H.
name: Dumusque, Xavier
name: Latham, David W.
name: Charbonneau, David
name: Damasso, Mario
name: Bonomo, Aldo S.
name: Lovis, Christophe
name: Cameron, Andrew Collier
name: Eastman, Jason D.
name: Sozzetti, Alessandro
name: Cosentino, Rosario
name: Pedani, Marco
name: Pepe, Francesco
name: Molinari, Emilio
name: Sasselov, Dimitar
name: Mayor, Michel
name: Stalport, Manu
name: Malavolta, Luca
name: Rice, Ken
name: Watson, Christopher A.
name: Fiorenzano, A. F. Martinez
name: Di Fabrizio, Luca
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present mass and radius measurements of K2-79b and K2-222b, two transiting exoplanets orbiting active G-type stars. Their respective 10.99d and 15.39d orbital periods fall near periods of signals induced by stellar magnetic activity. The two signals might therefore interfere and lead to an inaccurate estimate of exoplanet mass. We present a method to mitigate these effects when radial velocity and activity indicator observations are available over multiple observing seasons and the orbital period of the exoplanet is known. We perform correlation and periodogram analyses on sub-sets composed of each target's two observing seasons, in addition to the full data sets. For both targets, these analyses reveal an optimal season with little to no interference at the orbital period of the known exoplanet. We make a confident mass detection of each exoplanet by confirming agreement between fits to the full radial velocity set and the optimal season. For K2-79b, we measure a mass of 11.8 $\pm$ 3.6 $M_{Earth}$ and a radius of 4.09 $\pm$ 0.17 $R_{Earth}$. For K2-222b, we measure a mass of 8.0 $\pm$ 1.8 $M_{Earth}$ and a radius of 2.35 $\pm$ 0.08 $R_{Earth}$. According to model predictions, K2-79b is a highly irradiated Uranus-analog and K2-222b hosts significant amounts of water ice. We also present an RV solution for a candidate second companion orbiting K2-222 at 147.5d.
description: 33 pages, 17 figures, 13 tables
Structure and Phase transitions of Yukawa balls
Creators: name: Baumgartner, H.
name: Block, D.
name: Bonitz, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In this review, an overview of structural properties and phase transitions in finite spherical dusty (complex) plasma crystals -- so-called Yukawa balls -- is given. These novel kinds of Wigner crystals can be directly analyzed experimentally with video cameras. The experiments clearly reveal a shell structure and allow to determine the shell populations, to observe metastable states and transitions between configurations as well as phase transitions. The experimental observations of the static properties are well explained by a rather simple theoretical model which treats the dust particles as being confined by a parabolic potential and interacting via an isotropic Yukawa pair potential. The excitation properties of the Yukawa balls such as normal modes and the dynamic behavior, including the time-dependent formation of the crystal requires, in addition, to include the effect of friction between the dust particles and the neutral gas. Aside from first-principle molecular dynamics and Monte Carlo simulations several analytical approaches are reviewed which include shell models and a continuum theory. A summary of recent results and theory-experiment comparisons is given and questions for future research activities are outlined.
description: Invited review, submitted to Contrib. Plasmas Physics
Hydrodynamic generation of skyrmions in a two-component Bose-Einstein condensate
Creators: name: Sakaguchi, Kyoshiro
name: Jimbo, Keisuke
name: Saito, Hiroki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: When an obstacle is moved in a superfluid faster than a critical velocity, quantized vortices are generated behind the obstacle. Here we propose a method to create more complicated topological excitations, three-dimensional skyrmions, behind a moving obstacle. We numerically show that, in a two-component Bose-Einstein condensate, component-dependent obstacle potentials can generate skyrmions in the wake, made up of quantized vortex rings in different components that are linked with each other. The lifetime of generated skyrmions can be prolonged by a guiding potential, which enables the formation of a skyrmion train.
description: 7 pages, 5 figures, 8 movies
Influence of low energy scattering on loosely bound states
Creators: name: Sparenberg, Jean-Marc
name: Capel, Pierre
name: Baye, Daniel
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Compact algebraic equations are derived, which connect the binding energy and the asymptotic normalization constant (ANC) of a subthreshold bound state with the effective-range expansion of the corresponding partial wave. These relations are established for positively-charged and neutral particles, using the analytic continuation of the scattering (S) matrix in the complex wave-number plane. Their accuracy is checked on simple local potential models for the 16O+n, 16O+p and 12C+alpha nuclear systems, with exotic nuclei and nuclear astrophysics applications in mind.
Precision timing of PSR J1012+5307 and strong-field GR tests
Creators: name: Lazaridis, Kosmas
name: Wex, Norbert
name: Jessner, Axel
name: Kramer, Michael
name: Zensus, J. Anton
name: Stappers, Ben W.
name: Janssen, Gemma H.
name: Purver, Mark B.
name: Lyne, Andrew G.
name: Jordan, Christine A.
name: Desvignes, Gregory
name: Cognard, Ismael
name: Theureau, Gilles
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We report on the high precision timing analysis of the pulsar-white dwarf binary PSR J1012+5307. Using 15 years of multi-telescope data from the European Pulsar Timing Array (EPTA) network, a significant measurement of the variation of the orbital period is obtained. Using this ideal strong-field gravity laboratory we derive theory independent limits for both the dipole radiation and the variation of the gravitational constant.
description: 3 pages, Proceedings of the 12th Marcel Grossmann Meeting on General Relativity (MG 12)
Interactions between normative systems and software cognitive agents.
A formalization in temporal modal defeasible logic and its implementation
Creators: name: Riveret, Régis <1979>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2008
Subjects: INF/01 Informatica

description: Sustainable computer systems require some flexibility to adapt to environmental
unpredictable changes. A solution lies in autonomous software agents which can
adapt autonomously to their environments. Though autonomy allows agents to decide
which behavior to adopt, a disadvantage is a lack of control, and as a side effect
even untrustworthiness: we want to keep some control over such autonomous agents.
How to control autonomous agents while respecting their autonomy?
A solution is to regulate agents’ behavior by norms. The normative paradigm
makes it possible to control autonomous agents while respecting their autonomy,
limiting untrustworthiness and augmenting system compliance. It can also facilitate
the design of the system, for example, by regulating the coordination among agents.
However, an autonomous agent will follow norms or violate them in some conditions.
What are the conditions in which a norm is binding upon an agent?
While autonomy is regarded as the driving force behind the normative paradigm,
cognitive agents provide a basis for modeling the bindingness of norms. In order to
cope with the complexity of the modeling of cognitive agents and normative bindingness,
we adopt an intentional stance.
Since agents are embedded into a dynamic environment, things may not pass at
the same instant. Accordingly, our cognitive model is extended to account for some
temporal aspects. Special attention is given to the temporal peculiarities of the legal
domain such as, among others, the time in force and the time in efficacy of provisions.
Some types of normative modifications are also discussed in the framework.
It is noteworthy that our temporal account of legal reasoning is integrated to our
commonsense temporal account of cognition.
As our intention is to build sustainable reasoning systems running unpredictable
environment, we adopt a declarative representation of knowledge. A declarative representation
of norms will make it easier to update their system representation, thus
facilitating system maintenance; and to improve system transparency, thus easing
system governance.
Since agents are bounded and are embedded into unpredictable environments,
and since conflicts may appear amongst mental states and norms, agent reasoning
has to be defeasible, i.e. new pieces of information can invalidate formerly derivable conclusions. In this dissertation, our model is formalized into a non-monotonic
logic, namely into a temporal modal defeasible logic, in order to account for the
interactions between normative systems and software cognitive agents.
The Kātyāyanī myth in the Vāmana Purāna (18.39-21.52)
Creators: name: Dunlap, William Devereux
Publisher: name: University of British Columbia
Year: 2010

description: This thesis is the translation, annotation, and commentary of that section of the Vāmana Purāna in which the story of Kātyāyanī is narrated (18.39-21.52). I have translated the story literally, recounted it in a simpler manner, analyzed it and tried to include as much information as possible about the characters, customs, religious beliefs, etc. The aim is to understand the story accurately, fully, and critically and to enable a critical reader to do the same. Thus, the major purpose of the thesis is philological: it is an exercise in acquiring a more precise knowledge of puranic Sanskrit, myths, characters, beliefs. The secondary purpose is to study the mythological motifs appearing in the story, as well as the gods and demons who play a role in the story. Briefly, this passage of the Vāmana Purāna is the story of the defeat of the gods by the demons, and how the gods in turn defeated the demons by joining their powers together. The goddess Kātyāyanī, who is the central figure of the story, is an integration of all the gods strength. The structure of the thesis is as follows: a) an Introduction that concentrates on analysis and interpretation of the story and on the language used in the story; b) the Sanskrit text of the story, literal translation and critical as well as explanatory annotations; c) a Glossary of proper names of individuals and classes of beings mentioned in the selected segment.
Between Tokenism and Self-Representation: Refugee-Led Advocacy and Inclusion in International Refugee Policy
Creators: name: Bahram, Haqqi
Publisher: name: Zenodo
Year: 2020
Subjects: Refugee-Led Advocacy, Refugee agency, Global Compact on Refugees, International refugee policy, civic activism

description: There have been increasing efforts at the international level to make migrants and refugees’ participation and inclusion in policy more meaningful. Yet, little is known on their perspectives about these possibilities and the outcomes of these efforts. Drawing on the case of one refugee-led initiative, the Network for Refugee Voice (NRV), in attending the drafting process of the Global Compact on Refugees (GCR), this paper describes the refugee-led advocacy approach to attaining meaningful participation and representation on high policy platforms, including the United Nations organizations. I examine NRV members’ experience of advocating for refugee inclusion against a background of recent international commitment to refugees’ meaningful participation. Based on interviews, my analysis identifies the achievements as self-evaluated by NRV members as well as the challenges they face while highlighting the obstacles and opportunities for a more inclusive international refugee policy.
description: An earlier version of this paper was presented at the 'Unpacking the Challenges & Possibilities for Migration Governance' conference (University of Cambridge, 17-19 October 2019) which was organised part of Horizon2020 RESPOND project (www.respondmigration.com).
Direct detection of a flared disk around a young massive star HD200775 and its 10 to 1000AU scale properties
Creators: name: Okamoto, Yoshiko K.
name: Kataza, Hirokazu
name: Honda, M.
name: Fujiwara, H.
name: Momose, M.
name: Ohashi, N.
name: Fujiyoshi, T.
name: Sakon, I.
name: Sako, S.
name: Yamashita, T.
name: Miyata, T.
name: Onaka, T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We made mid-infrared observations of the 10Msun Herbig Be star HD200775 with the Cooled Mid-Infrared Camera and Spectrometer (COMICS) on the 8.2m Subaru Telescope. We discovered diffuse emission of an elliptical shape extended in the north-south direction inabout 1000AU radius around unresolved excess emission. The diffuse emission is perpendicular to the cavity wall formed by the past outflow activity and is parallel to the projected major axis of the central close binary orbit. The centers of the ellipse contours of the diffuse emission are shifted from the stellar position and the amount of the shift increases as the contour brightness level decreases. The diffuse emission is well explained in all of geometry, size, and configuration by an inclined flared disk where only its surface emits the mid-infrared photons. Our results give the first well-resolved infrared disk images around a massive star and strongly support that HD200775 is formed through the disk accretion. The disk survives the main accretion phase and shows a structure similar to that around lower-mass stars with 'disk atmosphere'. At the same time, the disk also shows properties characteristic to massive stars such as photoevaporation traced by the 3.4mm free-free emission and unusual silicate emission with a peak at 9.2micron, which is shorter than that of many astronomical objects. It provides a good place to compare the disk properties between massive and lower-mass stars.
description: 18 pages, 8 figures, accepted by The Astrophysical Journal
Scandium decorated C$_{24}$ fullerene as high capacity reversible hydrogen storage material: Insights from density functional theory simulations
Creators: name: Mahamiya, Vikram
name: Shukla, Alok
name: Chakraborty, Brahmananda
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Using first-principles density functional theory simulations, we have observed that the scandium decorated C$_{24}$ fullerene can adsorb up to six hydrogen molecules with an average adsorption energy of -0.35 eV per H$_2$ and average desorption temperature of 451 K. The gravimetric wt % of hydrogen for the scandium decorated C$_{24}$ fullerene system is 13.02%, which is sufficiently higher than the Department of Energy, United States demand. Electronic structure, orbital interactions, and charge transfer mechanisms are explained using the density of states, spatial charge density difference plots, and Bader charge analysis. A total amount of 1.44e charge transfer from the 3d and 4s orbitals of scandium to the 2p carbon orbitals of C$_{24}$ fullerene. Hydrogen molecules are attached to scandium decorated C$_{24}$ fullerene by Kubas type of interactions. Diffusion energy barrier calculations predict that the existence of a sufficient energy barrier will prevent metal-metal clustering. Ab-initio molecular dynamics (A.I.M.D.) simulations confirm the solidity of the structure at the highest desorption temperature. Therefore, we believe that the scandium decorated C$_{24}$ fullerene system is a thermodynamically stable, promising reversible high-capacity hydrogen storage device.
description: Main paper 37 pages, 11 figures; Supporting Information 2 pages, 2 figures
title:  Abre los ojos: la aportación del radiólogo en dolor abdominal en la urgencia
Creators: name: Valbuena Duran, Emilio
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Abdomen

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
El dolor abdominal es una de las principales razones por la que el paciente acude al servicio de urgencias. El diagnostico diferencial es muy amplio y los datos clinicos/analiticos muchas veces son superponibles o inespecificos. El radiologico juega...
title: Resonancia Magnética en el carcinoma lobulillar de mama
Creators: name: Perez Mila Montalban, Rocio
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Breast
subject: MR
subject: Observer performance
subject: Cost-effectiveness
subject: Diagnostic procedure
subject: Tissue characterisation

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
- Describir los patrones de presentación del carcinoma lobulillar invasor de mama en los estudios de Resonancia Magnética. - Evaluar las diferencias en cuanto a la cinética de captación del carcinoma lobulillar frente a la neoplasia ductal. -...
title: Calcificación sintomática del ligamento estilohioideo: síndrome de Eagle y estilalgia de Aubin.
Creators: name: Sirera Matilla, Marina
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Ear / Nose / Throat
subject: Anatomy

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Repaso anatómico y embriológico del aparato estilohioideo para entender la fisiopatología de la variedad sintomática producida por la elongación del proceso estiloides o mineralización del ligamento estilohioideo. Descripción de las...
Adaptive variance function estimation in heteroscedastic nonparametric regression
Creators: name: Cai, T. Tony
name: Wang, Lie
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G08, 62G20 (Primary)

description: We consider a wavelet thresholding approach to adaptive variance function estimation in heteroscedastic nonparametric regression. A data-driven estimator is constructed by applying wavelet thresholding to the squared first-order differences of the observations. We show that the variance function estimator is nearly optimally adaptive to the smoothness of both the mean and variance functions. The estimator is shown to achieve the optimal adaptive rate of convergence under the pointwise squared error simultaneously over a range of smoothness classes. The estimator is also adaptively within a logarithmic factor of the minimax risk under the global mean integrated squared error over a collection of spatially inhomogeneous function classes. Numerical implementation and simulation results are also discussed.
description: Published in at http://dx.doi.org/10.1214/07-AOS509 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Valence quark contribution for the gamma N -> Delta quadrupole transition extracted from lattice QCD
Creators: name: Ramalho, G.
name: Pena, M. T
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Starting with a spectator quark model developed for the nucleon (N) and the Delta in the physical pion mass region, we extend the predictions of the reaction gamma N -> Delta to the lattice QCD regime. The quark model includes S and D waves in the quark-diquark wavefunctions. Within this framework it is the D-wave part in the Delta wavefunction that generates nonzero valence contributions for the quadrupole form factors of the transition. Those contributions are however insufficient to explain the physical data, since the pion cloud contributions dominate. To separate the two effects we apply the model to the lattice regime in a region where the pion cloud effects are negligible, and adjust the D-state parameters directly to the lattice data. This process allows us to obtain a better determination of the D-state contributions. Finally, by adding a simple parametrization of the pion cloud we establish the connection between the experimental data and the lattice data.
description: To appear in Phys. Rev. D
Models of Metal-Poor Stars with Different Initial Abundances of C, N, O, Mg, and Si. I. Bolometric Corrections Derived from New MARCS Synthetic Spectra and Their Implications for Observed Colour-Magnitude Diagrams
Creators: name: VandenBerg, Don A.
name: Edvardsson, Bengt
name: Casagrande, Luca
name: Ferguson, Jason W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: New, high-resolution MARCS synthetic spectra have been calculated for more than a dozen mixtures of the metals allowing, in turn, for variations in C:N:O, [CNO/Fe], and enhanced abundances of C, O, Mg, and Si. Bolometric Corrections (BCs) for many of the broad-band filters currently in use have been generated from these spectra. Due to improved treatments of molecules that involve atoms of C, N, and O, the BCs for UV and blue passbands, in particular, differ substantially from those derived from previous MARCS models. These differences, and the effects on BCs of varying the abundances of the metals, are shown in a number of instructive plots. Stellar evolutionary grids for -2.5 <= [Fe/H] <= -0.5 have also been computed for the different mixtures. Isochrones based on these tracks are intercompared on the theoretical H-R diagram and on a few of the colour-magnitude diagrams that can be constructed from HST Wide Field Camera 3 (WFC3) F336W, F438W, F606W, F814W, F110W, and F160W observations. For the first application of these models, isochrones have been fitted to WFC3 photometry of the globular cluster NGC 6496 from the HST UV Legacy Survey, with very encouraging results.
description: Accepted for publication in the MNRAS; the article consists of 20 pages, including 14 figures
Primordial non-Gaussianity and Bispectrum Measurements in the Cosmic Microwave Background and Large-Scale Structure
Creators: name: Liguori, M.
name: Sefusatti, E.
name: Fergusson, J. R.
name: Shellard, E. P. S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The most direct probe of non-Gaussian initial conditions has come from bispectrum measurements of temperature fluctuations in the Cosmic Microwave Background and of the matter and galaxy distribution at large scales. Such bispectrum estimators are expected to continue to provide the best constraints on the non-Gaussian parameters in future observations. We review and compare the theoretical and observational problems, current results and future prospects for the detection of a non-vanishing primordial component in the bispectrum of the Cosmic Microwave Background and large-scale structure, and the relation to specific predictions from different inflationary models.
description: 82 pages, 23 figures; Invited Review for the special issue "Testing the Gaussianity and Statistical Isotropy of the Universe" for Advances in Astronomy
Continuum-continuum coupling and polarization potentials for weakly bound system
Creators: name: Canto, L. F.
name: Lubian, J.
name: Gomes, P. R. S.
name: Hussein, M. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We investigate the influence of couplings among continuum states in collisions of weakly bound nuclei. For this purpose, we compare cross sections for complete fusion, breakup and elastic scattering evaluated by continuum discretized coupled channel (CDCC) calculations, including and not including these couplings. In our study, we discuss this influence in terms of the polarization potentials that reproduce the elastic wave function of the coupled coupled channel method in single channel calculations. We find that the inclusion of couplings among the continuum states renders the real part of the polarization potential more repulsive, whereas it leads to weaker apsorption to the breakup channel. We show that the non-inclusion of continuum-continuum couplings in CDCC calculations may not lead to qualitative and quantitative wrong conclusions.
description: 4 pages, 4 figures. Submitted to Phys. Rev. C
The divergence of Van Hove's model and its consequences
Creators: name: Sbisà, Fulvio
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study a regularized version of Van Hove's 1952 model, in which a quantum field interacts linearly with sources of finite width lying at fixed positions. We show that the central result of Van Hove's 1952 paper on the foundations of Quantum Field Theory, the orthogonality between the spaces of state vectors which correspond to different values of the parameters of the theory, disappears when a well-defined model is considered. We comment on the implications of our results for the contemporary relevance of Van Hove's article.
description: 24 page, no figures, PDFLatex; differs from the published version almost only in the layout
Models for Metal-Poor Stars with Different Initial Abundances of C, N, O, Mg, and Si. II. Application to the Colour-Magnitude Diagrams of the Globular Clusters 47 Tuc, NGC 6362, M5, M3, M55, and M92
Creators: name: VandenBerg, Don A.
name: Casagrande, Luca
name: Edvardsson, Bengt
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Stellar models for -2.5 <= [Fe/H] <= -0.5 that have been computed for variations in the C:N:O abundance ratio (for two different values of [CNO/Fe]) are compared with HST Wide Field Camera 3 (WFC3) observations of the globular clusters (GCs) 47 Tuc, NGC 6362, M5, M5, M55, and M92. The bolometric corrections used to transpose the models to the observed planes are based on new MARCS synthetic spectra that incorporate improved treatments of molecules that involve atoms of C, N, and O. On the assumption of well-supported distance moduli and reddenings, isochrones for [O/Fe] = 0.6 and [m/Fe] = 0.4 for the other alpha elements, which are favoured by binary stars in GCs, generally reproduce the main features of observed colour-magnitude diagrams (CMDs) to within ~ 0.03 mag. In particular, they appear to match the spreads in the observed (M_F336W - M_F438W)_0 colours that are spanned by CN-weak and CN-strong stars along the lower giant branch quite well, but not the bluest giants, which are suspected to be N-poor ([N/Fe] ~ +0.5). Allowing for moderate He abundance variations (delta Y ~ 0.05) improves the fits to the observations.
description: Accepted for publication in the MNRAS; the article consists of 21 pages, including 17 figures
title: NEUROPATIA DE BAXTER: Hallazgos en RM y consideraciones etiológicas.
Creators: name: Millan Arredondo, Ignacio
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Musculoskeletal soft tissue
subject: MR

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Conocer los aspectos clínicos,
anatómicos y fisiopatológicos de la neuropatía de Baxter. Revisar los hallazgos típicos en la RM así como sus diversas condiciones...
Proposal for HSF Project Best Practices
Creators: name: Hegner, Benedikt
name: Morgan, Ben
name: Stewart, Graeme A
Publisher: name: Zenodo
Year: 2020

description: This technical note is a proposed list of best practices for HSF projects. The main motivation is to ensure interoperability and usability of a given project by other projects and being able to build consistent software stacks. In addition it should make it easier for other developers to contribute to existing projects.
Additional file 1 of Group testing can improve the cost-efficiency of prospective-retrospective biomarker studies
Creators: name: Zhang, Wei
name: Zhang, Zhiwei
name: Krushkal, Julia
name: Liu, Aiyi
Publisher: name: figshare
Year: 2021
Subjects: Medicine
Biotechnology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Cancer

description: Additional file 1.