cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spatial contraction of the Poincare group and Maxwell's equations in the electric limit
Creators: name: Reich, H. T.
name: Wickramasekara, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The contraction of the Poincare group with respect to the space trans- lations subgroup gives rise to a group that bears a certain duality relation to the Galilei group, that is, the contraction limit of the Poincare group with respect to the time translations subgroup. In view of this duality, we call the former the dual Galilei group. A rather remarkable feature of the dual Galilei group is that the time translations constitute a central subgroup. Therewith, in unitary irreducible representations (UIR) of the group, the Hamiltonian appears as a Casimir operator proportional to the identity H = EI, with E (and a spin value s) uniquely characterizing the representation. Hence, a physical system characterized by a UIR of the dual Galilei group displays no non-trivial time evolution. Moreover, the combined U(1) gauge group and the dual Galilei group underlie a non- relativistic limit of Maxwell's equations known as the electric limit. The analysis presented here shows that only electrostatics is possible for the electric limit, wholly in harmony with the trivial nature of time evolution governed by the dual Galilei group.
description: Annals of Physics, In Press
Ruolo della PLCγ1 e della PKCε nel differenziamento miogenico
Creators: name: Gaboardi, Gian Carlo <1978>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2008
Subjects: BIO/16 Anatomia umana

description: Phospholipase C (PLC) has been known to be a key effector protein in signal transduction pathway
for cell proliferation and differentiation.
Studies on signalling through the insulin/IGF-1 receptors in muscle differentiation have revealed
that PLCγ1 is involved during this process and that both mRNA and protein levels were increased
during myogenesis. Based on increasing signal transduction pathways that required both PLCγ1 and
PKCε, we investigated its role in insulin stimulation of skeletal muscle differentiation. The precise
effects of insulin on specific PKC isoforms are as yet unknown. Insulin stimulation produced a
gradual increase in PKCε expression and activation of PKCε through skeletal muscle
differentiation. By immunoprecipitation we have demonstrated that endogenous PLCγ1 and PKCε
belong to the same immunocomplex that increase during through myogenic differentiation.
Furthermore, the SH domain of PLCγ1 is involved in the protein complex and that its confine to the
Golgi membrane. PLCγ1 has been involved in cyclin D3 up-regulation. By overexpression and
silencing approach we have evidenced that PKCε modulate the espression of cyclin D3; the kinase
dead form of PKCε doesn’t maintain the same ability. Using a reporter hGH vector we proved that
PKCε acts at transcriptional level by affecting the -37 region of cyclin D3 promoter, as has been
described previous for PLCγ1. In summary this data proved the involvement of PKCε in the
regulation of cyclin D3 expression, together with PLCγ1.
Size-selective predation by the threespine stickleback
Creators: name: Burko, Thomas
Publisher: name: University of British Columbia
Year: 2010

description: This thesis examines some factors that limit and define size-selective predation by the threespine stickleback, Gasterosteus aculeatus. Behavioural? physical and energetic factors were considered. Enclosure studies in a shallow oligotrophic lake and in a small creek were used to determine the actual size limits for different prey taxa over a range of stickleback sizes. The prey organisms were the amphipods Hyallela azteca and Crangonyx richmondensis, the isopod Asellus occidentalism chironomid larvae and the cladoceran Sida crvstallina. The major question of the thesis is what determines the largest prey organism a stickleback can handle? The hypothesis that physical factors, particularly mouth size, are limiting was tested. The observed linear relationship between maximum prey size (Hyallela and Asellus) and fish size support this hypothesis. Further evidence for mouth size as the limiting factor, is provided by a laboratory experiment using Asellus as prey. Artemia salina nauplii were fed to large and small sticklebacks in an attempt to determine the importance of relative prey and predator size on feeding performance. Large fish did relatively poorly, but the effects of prey size changes were inconclusive due to confounding factors. The role of energetics in size-selective predation was examined via a model which gave minimum capture rates necessary to sustain fish at maintenance levels for a given prey size, predator size and temperature. The model can be used to explain various observations in the feeding ecology literature. The role of vision in size-selective predation was briefly considered. Evidence from the literature indicated that non-linear relationships exist between: 1) reactive distance and prey size5 and 2) prey risk and predator' distance. These non-linearities point to the importance of prey size in predator-prey interactions.
CIFRA National Survey: Uruguay June 1996
Creators: name: CIFRA, In Bogliaccini, Juan, And Queirolo Rosario Laboratorio De Opinión Pública And Redes Sociales En Uruguay Collection (Social Networks And Public Opinion Lab Collection)
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Stores near your home; grocery shopping preferences; rate kindness of political figures; Uruguay economy; rate public companies; where do you go when you need a doctor; Uruguay football (soccer); summer vacation activities you did as a child vs. your children; approval of various political figues and groups; safety of going out at night; late night activities; participation in fights; family economic situation; dedication to religion; interest in politics; political corruption; 1989 voting history; 1994 voting history. National Agency for Research and Innovation (ANII) Collection
Theory of the hourglass dispersion of magnetic excitations in high-T$_c$ cuprates
Creators: name: Zeyher, Roland
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A theory for the dispersion of collective magnetic excitations in superconducting cuprates is presented with the aim to cover both high and low doping regimes. Besides of spin fluctuations describable in the random phase approximation (RPA) we allow for local spin rotations within a mode-coupling theory. At low temperatures and moderately large correlation lengths we obtain two branches of excitations which disperse up- and downwards exhibiting the hourglass behavior observed experimentally at intermediate dopings. At large and small dopings our theory essentially reduces to the RPA and spin wave theory, respectively.
description: 4 pages, 5 Figures
Phase III of USO Solar Vector Magnetograph
Creators: name: Gosain, Sanjay
name: Venkatakrishnan, P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Solar Vector Magnetograph (SVM) is a modern imaging spectropolarimeter installed at Udaipur Solar Observatory (USO). Earlier phases saw the development of the instrument using off-the-shelf components with in-house software development. Subsequently, improvements were done in the opto-mechanical design of the sub-systems and the telescope tracking system. The third phase of the instrument development saw three major improvements, these include: (i) installation of a web-camera based telescope guiding system, developed in-house, (ii) high-cadence spectropolarimetry using Liquid Crystal Variable Retarders and a fast CCD camera and (iii)inclusion of Na D1 line with regular photospheric Fe 630.2 nm line for chromospheric observations.
description: 3 pages, 1 table; To appear in the Proceedings of Evershed Meeting, IIA, Bangalore
Distinguishing Commercial from Editorial Content in News
Creators: name: Kats, Timo
name: van der Putten, Peter
name: Schelling, Jasper
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: How can we distinguish commercial from editorial content in news, or more specifically, differentiate between advertorials and regular news articles? An advertorial is a commercial message written and formatted as an article, making it harder for readers to recognize these as advertising, despite the use of disclaimers. In our research we aim to differentiate the two using a machine learning model, and a lexicon derived from it. This was accomplished by scraping 1.000 articles and 1.000 advertorials from four different Dutch news sources and classifying these based on textual features. With this setup our most successful machine learning model had an accuracy of just over $90\%$. To generate additional insights into differences between news and advertorial language, we also analyzed model coefficients and explored the corpus through co-occurrence networks and t-SNE graphs.
Where have all the interstellar silicon carbides gone?
Creators: name: Chen, Tao
name: Xiao, C. Y.
name: Li, Aigen
name: Zhou, C. T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: The detection of the 11.3-micron emission feature characteristic of the Si--C stretch in carbon-rich evolved stars reveals that silicon carbide (SiC) dust grains are condensed in the outflows of carbon stars. SiC dust could be a significant constituent of interstellar dust since it is generally believed that carbon stars inject a considerable amount of dust into the interstellar medium (ISM). The presence of SiC dust in the ISM is also supported by the identification of presolar SiC grains of stellar origin in primitive meteorites. However, the 11.3-micron absorption feature of SiC has never been seen in the ISM and oxidative destruction of SiC is often invoked. In this work we quantitatively explore the destruction of interstellar SiC dust through oxidation based on molecular dynamics simulations and density functional theory calculations. We find that the reaction of an oxygen atom with SiC molecules and clusters is exothermic and could cause CO-loss. Nevertheless, even if this is extrapolable to bulk SiC dust, the destruction rate of SiC dust through oxidation could still be considerably smaller than the (currently believed) injection rate from carbon stars. Therefore, the lack of the 11.3-micron absorption feature of SiC dust in the ISM remains a mystery. A possible solution may lie in the currently believed stellar injection rate of SiC (which may have been overestimated) and/or the size of SiC dust (which may actually be considerably smaller than submicron in size).
description: 7 pages, 5 figures; accepted for publication in MNRAS
Complete pressure dependent phase diagrams for SrFe2As2 and BaFe2As2
Creators: name: Colombier, E.
name: Bud'ko, S. L.
name: Ni, N.
name: Canfield, P. C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The temperature dependent electrical resistivity of single crystalline SrFe2As2 and BaFe2As2 has been measured in a liquid medium, modified Bridgman anvil cell for pressures in excess of 75 kbar. These data allow for the determination of the pressure dependence of the higher temperature, structural / antiferromagnetic phase transitions as well as the lower temperature superconducting phase transition. For both compounds the ambient pressure, higher temperature structural / antiferromagnetic phase transition can be fully suppressed with a dome-like region of zero resistivity found to be centered about its critical pressure. Indeed, qualitatively, the temperature dependence of the resistivity curves closest to the critical pressures are the closest to linear, consistent with possible quantum criticality. For pressures significantly higher than the critical pressure the zero resistivity state is suppressed and the low temperature resistivity curves asymptotically approach a universal, low temperature manifold. These results are consistent with the hypothesis that correlations / fluctuations associated with the ambient-pressure, high-temperature, tetragonal phase have to be brought to low enough temperature to allow superconductivity, but if too fully suppressed can lead to the loss of the superconducting state.
Technological innovation in Emilia-Romagna: knowledge, practice, strategies
Creators: name: Serafini, Matteo <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: M-STO/05 Storia della scienza e delle tecniche

description: The present study aims at assessing the innovation strategies adopted within a regional economic system, the Italian region Emilia-Romagna, as it faced the challenges of a changing international scenario. As the strengthening of the regional innovative capabilities is regarded as a keystone to foster a new phase of economic growth, it is important also to understand how the local industrial, institutional, and academic actors have tackled the problem of innovation in the recent past. In this study we explore the approaches to innovation and the strategies adopted by the main regional actors through three different case studies. 
Chapter 1 provides a general survey of the innovative performance of the regional industries over the past two decades, as it emerges from statistical data and systematic comparisons at the national and European levels. The chapter also discusses the innovation policies that the regional government set up since 2001 in order to strengthen the collaboration among local economic actors, including universities and research centres.
As mechanics is the most important regional industry, chapter 2 analyses the combination of knowledge and practices utilized in the period 1960s-1990s in the design of a particular kind of machinery produced by G.D S.p.A., a world-leader in the market of tobacco packaging machines. G.D is based in Bologna, the region’s capital, and is at the centre of the most important Italian packaging district.
In chapter 3 the attention turns to the institutional level, focusing on how the local public administrations, and the local, publicly-owned utility companies have dealt with the creation of new telematic networks on the regional territory during the 1990s and 2000s.
Finally, chapter 4 assesses the technology transfer carried out by the main university of the region – the University of Bologna – by focusing on the patenting activities involving its research personnel in the period 1960-2010.
A molecular phylogeny of bivalve mollusks: ancient radiations and divergences as revealed by mitochondrial genes
Creators: name: Plazzi, Federico <1984>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: BIO/05 Zoologia

description: The main scope of my PhD is the reconstruction of the large-scale bivalve phylogeny on the basis of four mitochondrial genes, with samples taken from all major groups of the class. To my knowledge, it is the first attempt of such a breadth in Bivalvia. I decided to focus on both ribosomal and protein coding DNA sequences (two ribosomal encoding genes -12s and 16s -, and two protein coding ones - cytochrome c oxidase I and cytochrome b), since either bibliography and my preliminary results confirmed the importance of combined gene signals in improving evolutionary pathways of the group.
Moreover, I wanted to propose a methodological pipeline that proved to be useful to obtain robust results in bivalves phylogeny. Actually, best-performing taxon sampling and alignment strategies were tested, and several data partitioning and molecular evolution models were analyzed, thus demonstrating the importance of molding and implementing non-trivial evolutionary models. 
In the line of a more rigorous approach to data analysis, I also proposed a new method to assess taxon sampling, by developing Clarke and Warwick statistics: taxon sampling is a major concern in phylogenetic studies, and incomplete, biased, or improper taxon assemblies can lead to misleading results in reconstructing evolutionary trees. Theoretical methods are already available to optimize taxon choice in phylogenetic analyses, but most involve some knowledge about genetic relationships of the group of interest, or even a well-established phylogeny itself; these data are not always available in general phylogenetic applications. The method I proposed measures the "phylogenetic representativeness" of a given sample or set of samples and it is based entirely on the pre-existing available taxonomy of the ingroup, which is commonly known to investigators. Moreover, it also accounts for instability and discordance in taxonomies. A Python-based script suite, called PhyRe, has been developed to implement all analyses.
CIFRA National Survey: Uruguay February 1994
Creators: name: CIFRA, In Bogliaccini, Juan, And Queirolo Rosario Laboratorio De Opinión Pública And Redes Sociales En Uruguay Collection (Social Networks And Public Opinion Lab Collection)
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Total population: Carnaval traditions and festivities; incidents of drowning in the Uruguayan coasts; Costa de Oro (group of resort towns and beaches in Canelones); closeness to political party; political figures and groups approval; family economic situation; rate kindness of political figures; what school level would the respondent donate to; what should a donation to primary school be used for; state of public schools; expansion of school schedule; respondent's school experience Uruguay economy; interest in politics; parties the respondent would never vote for; presidential candidate preferences; dedication to religion; 1989 voting history; voter readiness; ideal political party for mayor. Canelones: how many children over 15 years old; respondent's children that work; ideal place for children to work when they are adults. Montevideo: family origins; healthcare; freedom to promote elections on the streets; tax proposals vs. plebiscite by Mayor Vazquez; Tabare Vazquez opposition of constitutional reform. National Agency for Research and Innovation (ANII) Collection.
Hattori-Stallings trace and Euler characteristics for groups
Creators: name: Chatterji, Indira
name: Mislin, Guido
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Topology (math.AT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 55N99; 20J05

description: We discuss properties of the complete Euler characteristic of a group G of type FP over the complex numbers and we relate it to the L2-Euler characteristic of the centralizers of the elements of G.
description: To appear in: London Math. Society Lecture Note Series, Vol 358, 2009
Two-particle correlations in high energy collisions and the gluon four-point function
Creators: name: Dumitru, Adrian
name: Marian, Jamal Jalilian
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive the rapidity evolution equation for the gluon four-point function in the dilute regime and at small x from the JIMWLK functional equation. We show that beyond leading order in Nc the mean field (Gaussian) approximation where the four point function is factorized into a product of two point functions is violated. We calculate these factorization breaking terms and show that they contribute at leading order in Nc to correlations of two produced gluons as a function of their relative rapidity and azimuthal angle, for generic (rather than back-to-back) angles. Such two-particle correlations have been studied experimentally at the BNL-RHIC collider and could be scrutinized also for pp (and, in the future, also AA) collisions at the CERN-LHC accelerator.
description: 15 pages, 3 figures
Cumulants as the Variables of Density Cumulant Theory: A Path to Hermitian Triples
Creators: name: Misiewicz, Jonathon P.
name: Turney, Justin M.
name: Schaefer, Henry F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We study the combination of orbital-optimized density cumulant theory and a new parameterization of the reduced density matrices in which the variables are the particle-hole cumulant elements. We call this combination O$λ$DCT. We find that this new ansatz solves problems identified in the previous unitary coupled cluster ansatz for density cumulant theory: the theory is now free of near-zero denominators between occupied and virtual blocks, can correctly describe the dissociation of H$_2$, and is rigorously size-extensive. In addition, the new ansatz has fewer terms than the previous unitary ansatz, and the optimal orbitals delivered by the exact theory are the natural orbitals. Numerical studies on systems amenable to full configuration interaction show that the amplitudes from the previous ODC-12 method approximate the exact amplitudes predicted by this ansatz. Studies on equilibrium properties of diatomic molecules show that even with the new ansatz, it is necessary to include triples to improve the accuracy of the method compared to orbital optimized linearized coupled cluster doubles. With a simple iterative triples correction, O$λ$DCT outperforms other orbital-optimized methods truncated at comparable levels in the amplitudes, as well as CCSD(T). By adding four more terms to the cumulant parameterization, O$λ$DCT outperforms CCSDT while having the same $\mathcal{O}(V^5 O^3)$ scaling.
description: Submitted to J. Chem. Phys. 48 pages (preprint), 9 figures
Definition, realization and evaluation of a software reference architecture for use in space applications
Creators: name: Panunzio, Marco <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: INF/01 Informatica

description: A recent initiative of the European Space Agency (ESA) aims at the definition and adoption of a software reference architecture for use in on-board software of future space missions. 
Our PhD project placed in the context of that effort. 

At the outset of our work we gathered all the industrial needs relevant to ESA and all the main European space stakeholders and we were able to consolidate a set of technical high-level requirements for the fulfillment of them.

The conclusion we reached from that phase confirmed that the adoption of a software reference architecture was 
indeed the best solution for the fulfillment of the high-level requirements.

The software reference architecture we set on building rests on four constituents:
(i) a component model, to design the software as a composition of individually verifiable and reusable software units;
(ii) a computational model, to ensure that the architectural description of the software is statically analyzable;
(iii) a programming model, to ensure that the implementation of the design entities conforms
with the semantics, the assumptions and the constraints of the computational model;
(iv) a conforming execution platform, to actively preserve at run time the properties asserted by static analysis.

The nature, feasibility and fitness of constituents (ii), (iii) and (iv), were already proved by the author in an 
international project that preceded the commencement of the PhD work. 

The core of the PhD project was therefore centered on the design and prototype implementation of constituent (i), a component model. 

Our proposed component model is centered on:
(i) rigorous separation of concerns, achieved with the support for design views and by careful allocation of concerns to the dedicated software entities;
(ii) the support for specification and model-based analysis of extra-functional properties;
(iii) the inclusion space-specific concerns.
The Effects of Starspots on Spectroscopic Mass Estimates of Low-mass Young Stars
Creators: name: Flores, C.
name: Connelley, M. S.
name: Reipurth, B.
name: Duchêne, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Magnetic fields and mass accretion processes create dark and bright spots on the surface of young stars. These spots manifest as surface thermal inhomogeneities, which alter the global temperature measured on the stars. To understand the effects and implications of these starspots, we conducted a large iSHELL high-resolution infrared spectroscopic survey of T Tauri stars in Taurus-Auriga and Ophiuchus star-forming regions. From the K band spectra, we measured stellar temperatures and magnetic field strengths using a magnetic radiative transfer code. We compared our infrared-derived parameters against literature optical temperatures and found a) a systematic temperature difference between optical and infrared observations, and b) a positive correlation between the magnetic field strengths and the temperature differences. The discrepant temperature measurements imply significant differences in the inferred stellar masses from stellar evolutionary models. To discern which temperature better predicts the mass of the star, we compared our model-derived masses against dynamical masses measured from ALMA and PdBI for a sub-sample of our sources. From this comparison we conclude that, in the range of stellar masses from 0.3 to 1.3 $\rm M_\odot$, neither infrared nor optical temperatures perfectly reproduce the stellar dynamical masses. But, on average, infrared temperatures produce more precise and accurate stellar masses than optical ones.
description: Accepted for publication in ApJ. The manuscript has 20 pages, 11 Figures (+2 figure sets in the online version of ApJ), and 2 Tables
title: La cardioTC en la endocarditis infecciosa
Creators: name: Arrieta Artieda, Irma
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Prostheses
subject: Infection
subject: Education
subject: CT
subject: MR
subject: Cardiac

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
La endocarditis infecciosa (EI) es una enfermedad poco frecuente pero de elevada morbimortalidad que,
cuando se complica,
requiere tratamiento quirúrgico. La cardioTC se ha convertido en una de las técnicas de elección para la valoración...
Teichmuller space theory and classical problems of geometric function theory
Creators: name: Krushkal, Samuel L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: Recently the author presented a new approach to solving the coefficient problems for holomorphic functions based on the deep features of Teichmuller spaces. It involves the Bers isomorphism theorem for Teichmuller spaces of punctured Riemann surfaces. The aim of the present paper is to provide new applications of this approach and extend the indicated results to more general classes of functions
description: arXiv admin note: text overlap with arXiv:2003.14214, arXiv:1908.05183
title: Departamento Técnico dentro del Plan Integral de Calidad (PCI) IDI. Experiencia y acciones desarrolladas desde su reciente creación.
Creators: name: Ruiz Espinosa, Joaquín
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Management
subject: Technical aspects
subject: Audit and standards
subject: Socio-economic issues
subject: Occupational / Environmental hazards

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
1) Participación proactiva en iniciativas y procesos de mejora dentro del PIC (ver comunicación oral Plan Integral de Calidad IDI.
Experiencia y acciones desarrolladas desde su reciente creación). 2) Colaboración,
coordinación y seguimiento de...
Leptoquarks in FCNC charm decays
Creators: name: Fajfer, Svjetlana
name: Kosnik, Nejc
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently it was noticed that among many scenarios of new physics leptoquarks might compensate for the disagreement between the lattice and experimental results for the charmed strange meson decay constant. The leptoquarks might modify also the flavor changing neutral current charm decays. In this study we investigate impact of the scalar leptoquark with electric charge -1/3 on the dilepton invariant mass distribution in the D^+ --> pi^+ mu^+ mu^- decay and on the branching ratios of the D^0 --> mu^+ mu^- using the existing experimental results.
description: 5 pages, 1 figure
title: Laringocele: formas de presentación y consideraciones diagnósticas.
Creators: name: Arribas Garcia, Javier
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neoplasia
subject: Inflammation
subject: eLearning
subject: CT
subject: Conventional radiography
subject: Ear / Nose / Throat
subject: Head and neck

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Revisamos el diagnóstico por imagen del laringocele: 1.
Descripción de las diferentes características radiológicas de los subtipos interno,
externo o mixto. 2.
Formas habituales de presentación clínica y su asociación con neoplasia de...
Proceedings 7th International Workshop on Security Issues in Concurrency
Creators: name: Boreale, Michele
name: Kremer, Steve
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cryptography and Security (cs.CR)
subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: This volume contains the proceedings of the 7th Workshop on Security Issues in Concurrency (SecCo'09). The workshop was held in Bologna, Italy on September 5th 2009, as a satellite workshop of CONCUR'09. The aim of the SecCo workshop series is to cover the gap between the security and the concurrency communities. More precisely, the workshop promotes the exchange of ideas, trying to focus on common interests and stimulating discussions on central research questions. In particular, we called for papers dealing with security issues (such as authentication, integrity, privacy, confidentiality, access control, denial of service, service availability, safety aspects, fault tolerance, trust, language-based security, probabilistic and information theoretic models) in emerging fields like web services, mobile ad-hoc networks, agent-based infrastructures, peer-to-peer systems, context-aware computing, global/ubiquitous/pervasive computing.
title: Secuelas y complicaciones de la TBC pulmonar. Hallazgos por radiografía simple y TC.
Creators: name: García Espinosa, Jade
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Thorax
subject: Digital radiography
subject: CT

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Nuestro objetivo es presentar las distintas manifestaciones radiológicas de las secuelas y complicaciones de la TBC para que sean fácilmente comprendidas y reconocidas,
facilitando así su...
The Nature of Transition Circumstellar Disks I. The Ophiuchus Molecular Cloud
Creators: name: Cieza, Lucas A.
name: Schreiber, Matthias R.
name: Romero, Gisela A.
name: Mora, Marcelo D.
name: Merin, Bruno
name: Swift, Jonathan J.
name: Orellana, Mariana
name: Williams, Jonathan P.
name: Harvey, Paul M.
name: Evans, Neal J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have obtained millimeter wavelength photometry, high-resolution optical spectroscopy and adaptive optics near-infrared imaging for a sample of 26 Spitzer-selected transition circumstellar disks. All of our targets are located in the Ophiuchus molecular cloud (d ~125 pc) and have Spectral Energy Distributions (SEDs) suggesting the presence of inner opacity holes. We use these ground-based data to estimate the disk mass, multiplicity, and accretion rate for each object in our sample in order to investigate the mechanisms potentially responsible for their inner holes. We find that transition disks are a heterogeneous group of objects, with disk masses ranging from < 0.6 to 40 M_JUP and accretion rates ranging from <1E-11 1E-7 M_solar/yr, but most tend to have much lower masses and accretion rates than "full disks" (i.e., disks without opacity holes). Eight of our targets have stellar companions: 6 of them are binaries and the other 2 are triple systems. In four cases, the stellar companions are close enough to suspect they are responsible for the inferred inner holes. We find that 9 of our 26 targets have low disk mass (< 2.5 M_JUP) and negligible accretion (< 1E-11) M_solar/yr, and are thus consistent with photoevaporating (or photoevaporated) disks. Four of these 9 non-accreting objects have fractional disk luminosities < 1E-3 and could already be in a debris disk stage. Seventeen of our transition disks are accreting. Thirteen of these accreting objects are consistent with grain growth. The remaining 4 accreting objects have SEDs suggesting the presence of sharp inner holes, and thus are excellent candidates for harboring giant planets.
description: Accepted for publication by ApJ, 59 pages, 11 figures
Building up DNA, bit by bit: a simple description of chain assembly
Creators: name: Foffi, R.
name: Sciortino, F.
name: Tavares, J. M.
name: Teixeira, P. I. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We simulate the assembly of DNA copolymers from two types of short duplexes (short double strands with a single-stranded overhang at each end), as described by the oxDNA model. We find that the statistics of chain lengths can be well reproduced by a simple theory that treats the association of particles into ideal (i.e., non-interacting) clusters as a reversible chemical reaction. The reaction constants can be predicted either from Santalucia's theory or from Wertheim's thermodynamic perturbation theory of association for spherical patchy particles. Our results suggest that theories incorporating very limited molecular detail may be useful for predicting the broad equilibrium features of copolymerisation.
description: 22 pages, 5 figures. To be published in Soft Matter
title: Utilidad de la TCMD en las anomalías de la unión pieloureteral
Creators: name: Vega-Hazas Porrúa, Gonzalo
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Kidney
subject: Urinary Tract / Bladder
subject: Conventional radiography
subject: CT
subject: CT-Angiography
subject: Dilatation

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Presentar nuestra experiencia en un grupo de pacientes en los que ante la sospecha de presentar una anomalía de la uniónpieloureteral,
se les realiza una TCMD poniendo especial énfasis en los hallazgos a nivel del sistema excretor y de los vasos...
CIFRA National Survey: Uruguay July 1994
Creators: name: CIFRA, In Bogliaccini, Juan, And Queirolo Rosario Laboratorio De Opinión Pública And Redes Sociales En Uruguay Collection (Social Networks And Public Opinion Lab Collection)
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Favorite season; home heating tactics; susceptibility to illnesses from the cold; current medications; recent medical history; employment status; work affected by illness; economic situation of the country; interest in politics; approval of President Luis Alberto Lacalle; approval of Parliament; approval of the district mayor; likability of presidential candidates; economic situation of your family; government help to the industry; reforming government funding for education; best date for elections; best/worst political parties; work values; process of joining MERCOSUR, a South American trade bloc; lies told by Uruguayan citizens; global AIDS propaganda; relationships with AIDS patients; religious views; past voting history; future voting tendencies; voting for district government reformation. Montevideo: National healthcare quality; personal medical services; member of social services program; quality of neighborhood lighting. Paysandu: Preferred candidates from specific political parties. National Agency for Research and Innovation (ANII) Collection
title: Hipertrofia del músculo tensor de la fascia lata, etiología y hallazgos en imagen.
Creators: name: Nogués Meléndez, Pablo
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Extremities
subject: Musculoskeletal soft tissue
subject: Musculoskeletal system
subject: MR
subject: CT
subject: Ultrasound
subject: Education
subject: Hyperplasia / Hypertrophy

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Conocer la anatomía y función del músculo tensor de la fascia lata (TFL), su representación normal en ecografía,
TC y resonancia magnética,
la existencia del pseudotumor debido a hipertrofia o pseudohipertrofia muscular y sus causas más...
The effect of context on the role of imagery in language processing
Creators: name: Sutherland, Brian Ross
Publisher: name: University of British Columbia
Year: 2010

description: The role of imagery in language processing has received much recent attention. Paivio's two-process theory implies that concrete and abstract material are represented differently in memory. Specifically, concrete language is assumed to be retained in terms of an image which summarizes the meaning of the material in an integrated form. Abstract language, on the other hand, is assumed to be represented in a verbal-sequential form, with little integration of meaning. A review of the evidence on the effects of concreteness on memory for meaning indicates that Paivio's theory does not provide a completely adequate account of the results. In many of the studies which have produced findings consistent with the theory, an explanation in terms of differences in comprehensibility seems as appropriate as one based on different modes of storage. In addition, some studies have shown a substantial degree of semantic integration in abstract language. In an attempt to provide some clarification of this issue, a Levels of Processing model was proposed as an alternative to Paivio's theory. The model is based on the assumption that while abstract and concrete language typically differ in access to semantic processing, memory for meaning may be independent of concreteness under certain conditions. In particular, context may increase semantic processing in abstract language and thereby reduce the superiority of concrete language in memory for meaning which would otherwise be predicted. Two experiments were carried out to evaluate the model. In the first, the effect of concreteness, context, and presentation time on recognition of meaning and wording changes in sentences was investigated. The results supported the model in that memory for meaning relative to wording increased as a function of concreteness only when the sentences were presented in isolation from context. When the sentences were presented in the context of meaningful paragraphs, relative memory for meaning was equal in concrete and abstract material. The second experiment assessed the image-evoking capacity, comprehensibility, and degree of meaning change in test items, for the materials used in the first experiment. The results allowed several alternative interpretations of Experiment I to be discounted. In particular, Paivio's two-process theory was shown to be incapable of accounting for the elimination of the concreteness effect on memory for meaning as a function of context. It was concluded that the Levels of Processing model provides a more viable account of the role of imagery in language processing than Paivio's two-process theory.
title: Recurrencia tumoral tras el tratamiento conservador del cáncer de mama: hallazgos por imagen.
Creators: name: Sáez Martínez, Maria Elena
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Ultrasound
subject: MR
subject: Mammography
subject: Breast

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Revisar la epidemiología y los principales factores implicados en la recurrencia tumoral/segundo tumor primario ipsilateral en pacientes sometidas a tratamiento conservador de mama. Evaluar la utilidad de la mamografía en la detección de una...
Asymptotic expansion and optimal symmetry of minimal gradient graph equations in dimension 2
Creators: name: Liu, Zixiao
name: Bao, Jiguang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J60, 35C20, 35B06

description: In this paper, we study asymptotic expansion at infinity and symmetry of zero mean curvature equations of gradient graph in dimension 2, which include the Monge--Ampère equation, inverse harmonic Hessian equation and the special Lagrangian equation. This refines the research of asymptotic behavior, gives the precise gap between exterior minimal gradient graph and the entire case, and extends the classification results of Monge--Ampère equations.
Accretion Flows or Outflow Cavities? Uncovering the Gas Dynamics around Lupus 3-MMS
Creators: name: Thieme, Travis J.
name: Lai, Shih-Ping
name: Lin, Sheng-Jun
name: Cheong, Pou-Ieng
name: Lee, Chin-Fei
name: Yen, Hsi-Wei
name: Li, Zhi-Yun
name: Lam, Ka Ho
name: Zhao, Bo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Understanding how material accretes onto the rotationally supported disk from the surrounding envelope of gas and dust in the youngest protostellar systems is important for describing how disks are formed. Magnetohydrodynamic simulations of magnetized, turbulent disk formation usually show spiral-like streams of material (accretion flows) connecting the envelope to the disk. However, accretion flows in these early stages of protostellar formation still remain poorly characterized due to their low intensity and possibly some extended structures are disregarded as being part of the outflow cavity. We use ALMA archival data of a young Class 0 protostar, Lupus 3-MMS, to uncover four extended accretion flow-like structures in C$^{18}$O that follow the edges of the outflows. We make various types of position-velocity cuts to compare with the outflows and find the extended structures are not consistent with the outflow emission, but rather more consistent with a simple infall model. We then use a dendrogram algorithm to isolate five sub-structures in position-position-velocity space. Four out of the five sub-structures fit well ($>$95%) with our simple infall model, with specific angular momenta between $2.7-6.9\times10^{-4}\,$km$\,$s$^{-1}\,$pc and mass-infall rates of $0.5-1.1\times10^{-6}\,M_{\odot}\,$yr$^{-1}$. Better characterization of the physical structure in the supposed "outflow-cavities" is important to disentangle the true outflow cavities and accretion flows.
description: 23 pages, 12 figures, accepted for publication in The Astrophysical Journal
The NASA-UC Eta-Earth Program: I. A Super-Earth Orbiting HD 7924
Creators: name: Howard, Andrew W.
name: Johnson, John A.
name: Marcy, Geoffrey W.
name: Fischer, Debra A.
name: Wright, Jason T.
name: Henry, Gregory W.
name: Giguere, Matthew J.
name: Isaacson, Howard
name: Valenti, Jeff A.
name: Anderson, Jay
name: Piskunov, Nikolai E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report the discovery of the first low-mass planet to emerge from the NASA-UC Eta-Earth Program, a super-Earth orbiting the K0 dwarf HD 7924. Keplerian modeling of precise Doppler radial velocities reveals a planet with minimum mass M_P sin i = 9.26 M_Earth in a P = 5.398 d orbit. Based on Keck-HIRES measurements from 2001 to 2008, the planet is robustly detected with an estimated false alarm probability of less than 0.001. Photometric observations using the Automated Photometric Telescopes at Fairborn Observatory show that HD 7924 is photometrically constant over the radial velocity period to 0.19 mmag, supporting the existence of the planetary companion. No transits were detected down to a photometric limit of ~0.5 mmag, eliminating transiting planets with a variety of compositions. HD 7924b is one of only eight planets known with M_P sin i < 10 M_Earth and as such is a member of an emerging family of low-mass planets that together constrain theories of planet formation.
description: ApJ accepted, 10 pages, 10 figures, 4 tables
Square waves and Bykov T-points in a delay algebraic model for the Kerr-Gires-Tournois interferometer
Creators: name: Stöhr, Mina
name: Koch, Elias R.
name: Javaloyes, Julien
name: Gurevich, Svetlana V.
name: Wolfrum, Matthias
Publisher: name: Weierstrass Institute
Year: 2023
Subjects: subject: Large delay
subject: homoclinic bifurcations
subject: square waves
subject: 34K13
subject: 34K16

description: We study theoretically the mechanisms of square wave formation of a vertically emitting micro-cavity operated in the Gires-Tournois regime that contains a Kerr medium and that is subjected to strong time-delayed optical feedback and detuned optical injection. We show that in the limit of large delay, square wave solutions of the time-delayed system can be treated as relative homoclinic solutions of an equation with an advanced argument. Based on this, we use concepts of classical homoclinic bifurcation theory to study different types of square wave solutions. In particular, we unveil the mechanisms behind the collapsed snaking scenario of square waves and explain the formation of complex-shaped multistable square wave solutions through a Bykov T-point. Finally we relate the position of the T-point to the position of the Maxwell point in the original time-delayed system