cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Impact of occultations of stellar active regions on transmission spectra: Can occultation of a plage mimic the signature of a blue sky?
Creators: name: Oshagh, M.
name: Santos, N. C.
name: Ehrenreich, D.
name: Haghighipour, N.
name: Figueira, P.
name: Santerne, A.
name: Montalto, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Transmission spectroscopy during planetary transits, which is based on the measurements of the variations of planet-to-star radius ratio as a function of wavelength, is a powerful technique to study the atmospheric properties of transiting planets. One of the main limitation of this technique is the effects of stellar activity, which up until now, have been taken into account only by assessing the effect of non-occulted stellar spots on the estimates of planet-to-star radius ratio. In this paper, we study, for the first time, the impact of the occultation of a stellar spot and plage on the transmission spectra of transiting exoplanets. We simulated this effect by generating a large number of transit light curves for different transiting planets, stellar spectral types, and for different wavelengths. Results of our simulations indicate that the anomalies inside the transit light curve can lead to a significant underestimation or overestimation of the planet-to-star radius ratio as a function of wavelength. At short wavelengths, the effect can reach to a difference of up to 10% in the planet-to-star radius ratio, mimicking the signature of light scattering in the planetary atmosphere. Atmospheric scattering has been proposed to interpret the increasing slopes of transmission spectra toward blue for exoplanets HD 189733b and GJ 3470b. Here we show that these signatures can be alternatively interpreted by the occultation of stellar plages. Results also suggest that the best strategy to identify and quantify the effects of stellar activities on the transmission spectrum of a planet is to perform several observations during the transit epoch at the same wavelength. This will allow for identifying the possible variations in transit depth as a function of time due to stellar activity variability.
description: 7 pages, 6 figures, Accepted for publication in A&A
title: Illuminating the Predictive Power of Gamification to Inspire Technology Users
Creators: name: Weber, Sebastian
name: Klassen, Gerhard
name: Wyszynski, Marc
name: Kordyaka, Bastian
Publisher: name: GI
Year: 2023

description: This study explores the relationship between gamification design features and the motivational state of inspiration in the context of eLearning. We focus on three dimensions of gamification: immersion, achievement, and social. Using a cross-sectional survey design, covariance-based statistics, and structural equation modeling, we collected data from users of a language learning app. Our findings reveal that achievement-related gamification features, such as badges, points, levels, and tasks, evoke inspiration and foster the inspiration to learn. However, neither immersion-related nor social-related gamification features serve as a source of inspiration. This research contributes to the understanding of how gamification can be leveraged to enhance inspiration and possibly learning outcomes in eLearning environments.
title: A comparison between the evaluation of lung nodules dimensions measured by an experienced radiologist and inexperienced radiologists assisted by specialized software for lung nodule analysis.
Creators: name: Domingues, Julio
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Image verification
subject: Computer Applications-Detection, diagnosis
subject: Comparative studies
subject: CT
subject: Thorax
subject: Computer applications

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Pulmonary nodules are findings increasingly frequent in imaging studies given the constant evolution of image equipments, especially since the spread of the helical computed tomography (CT) and screening exams [1, 2]. Although often...
Excitation of Langmuir waves by the lower energy cutoff behavior of power-law electrons
Creators: name: Tang, Jianfei
name: Wu, Dejin
name: Zhao, Guoqing
name: Chen, Ling
name: Tan, Chengming
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Langmuir waves (LWs), which are believed to play a crucial role in the plasma emission of solar radio bursts, can be excited by streaming instability of energetic electron beams. However, solar hard X-ray observations imply that the energetic flare electrons usually have a power-law energy distribution with a lower energy cutoff. In this paper, we investigate LWs driven by the power-law electrons. The results show that power-law electrons with the steepness cutoff behavior can excite LWs effectively because of the population inversion distribution below the cutoff energy ($E_c$). The growth rate of LWs increases with the steepness index ($δ$) and decreases with the power-law index ($α$). The wave number of the fastest growing LWs ($kλ_D$), decreases with the characteristic velocity of the power-law electrons ($v_{c}=\sqrt{2E_{c}/m_{e}}$) and increases with the thermal velocity of ambient electrons ($v_T$). This can be helpful for us to understand better the physics of LWs and the dynamics of energetic electron beams in space and astrophysical plasmas.
description: 15 pages,4 figures,Accepted by Astrophysics and Space Science
title: Ultrasound non-invasive measurement of intracranial pressure in critical care. Case series study.
Creators: name: prada mancilla, wiliam
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Patterns of Care
subject: Diagnostic procedure
subject: Ultrasound-Spectral Doppler
subject: Ultrasound-Power Doppler
subject: Ultrasound-Colour Doppler
subject: Trauma
subject: Neuroradiology brain
subject: Emergency
subject: Trauma

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Learning Objectives: 1. To describe the technique of the transcranial Doppler through direct and dynamic vision of the critically ill patient. 2. To describe the utility of transcranial Doppler in the non-invasive monitoring of intracranial pressure...
Topology optimisation for natural convection problems
Creators: name: Alexandersen, Joe
name: Aage, Niels
name: Andreasen, Casper Schousboe
name: Sigmund, Ole
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This paper demonstrates the application of the density-based topology optimisation approach for the design of heat sinks and micropumps based on natural convection effects. The problems are modelled under the assumptions of steady-state laminar flow using the incompressible Navier-Stokes equations coupled to the convection-diffusion equation through the Boussinesq approximation. In order to facilitate topology optimisation, the Brinkman approach is taken to penalise velocities inside the solid domain and the effective thermal conductivity is interpolated in order to accommodate differences in thermal conductivity of the solid and fluid phases. The governing equations are discretised using stabilised finite elements and topology optimisation is performed for two different problems using discrete adjoint sensitivity analysis. The study shows that topology optimisation is a viable approach for designing heat sink geometries cooled by natural convection and micropumps powered by natural convection.
description: Submitted to the 'International Journal for Numerical Methods in Fluids' on 28th of August 2013 - currently under review
title: Systematic assessment of iron overload including MRI in post-allo-transplant setting
Creators: name: Ugarte, Ane
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Liver
subject: MR
subject: Diagnostic procedure
subject: Haematologic diseases

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Pre and post allo-transplant iron overload (IO) has been associated with considerable long-term morbimortality 1,2 . Classically, its management has been based in therapeutic phlebotomies (TP), often inconvenient and not feasible due to ongoing...
title: iRECIST and Immunotherapy: Application in the follow up of patients.
Creators: name: Fajardo Quillay, Carla
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Oncology
subject: CT
subject: Education
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The Immune system as a new target in the cancer fight. How it works. Review the pseudoprogression concept and the iRECIST criteria. Show examples of cases with different immune-mediated response patterns....
In situ characterization of delamination and crack growth of a CGO-LSM multi-layer ceramic sample investigated by X-ray tomographic microscopy
Creators: name: Bjørk, R.
name: Esposito, V.
name: Lauridsen, E. M.
name: Jørgensen, P. S.
name: Fife, J. L.
name: Andersen, K. B.
name: Foghmoes, S. P. V.
name: Pryds, N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The densification, delamination and crack growth behavior in a Ce$_{0.9}$Gd$_{0.1}$O$_{1.95}$ (CGO) and (La$_{0.85}$Sr$_{0.15})_{0.9}$MnO$_{3}$ (LSM) multi-layer ceramic sample was studied using in situ X-ray tomographic microscopy (microtomography), to investigate the critical dynamics of crack propagation and delamination in a multilayered sample. Naturally occurring defects, caused by the sample preparation process, are shown not to be critical in sample degradation. Instead defects are nucleated during the debinding step. Crack growth is significantly faster along the material layers than perpendicular to them, and crack growth and delamination only accelerates when sintering occurs.
description: 9 pages, 8 figures
title: Intracranial cystic lesions - how to evaluate : A pictorial essay.
Creators: name: Önal, Canver
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Neoplasia
subject: Cysts
subject: Imaging sequences
subject: MR
subject: CT
subject: Neuroradiology brain

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The aim of this pictorial essay is to review the imaging findings of the intracranial cystic lesions and to emphasize the importance of proper evaluation while making differential...
The antiferromagnetic Ising model on the swedenborgite lattice
Creators: name: Buhrandt, Stefan
name: Fritz, Lars
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Geometrical frustration in spin systems often results in a large number of degenerate ground states. In this work we study the antiferromagnetic Ising model on the three dimensional swedenborgite lattice which is a specific stacking of Kagomé and triangular layers. The model contains two exchange couplings, one within the Kagomé layer, another one in between Kagomé and triangular layers. We determine the phase diagram with and without easy axis magnetic field and calculate the ground state degeneracy explicitly in terms of the residual entropy. At zero field we find two different ground state manifolds separated by a first order transition at T = 0 and equal exchange couplings. We also determine the T = 0 phase diagram in a magnetic field and find a rich phase diagram with both degenerate and non-degenerate phases depending on the field strength and out-of-plane coupling.
description: 7 pages, 8 figures
A Critical Review of "Automatic Patch Generation Learned from Human-Written Patches": Essay on the Problem Statement and the Evaluation of Automatic Software Repair
Creators: name: Monperrus, Martin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: At ICSE'2013, there was the first session ever dedicated to automatic program repair. In this session, Kim et al. presented PAR, a novel template-based approach for fixing Java bugs. We strongly disagree with key points of this paper. Our critical review has two goals. First, we aim at explaining why we disagree with Kim and colleagues and why the reasons behind this disagreement are important for research on automatic software repair in general. Second, we aim at contributing to the field with a clarification of the essential ideas behind automatic software repair. In particular we discuss the main evaluation criteria of automatic software repair: understandability, correctness and completeness. We show that depending on how one sets up the repair scenario, the evaluation goals may be contradictory. Eventually, we discuss the nature of fix acceptability and its relation to the notion of software correctness.
description: ICSE 2014, India (2014)
title: Computed Tomography: a key determinant in guiding management of acute pancreatitis
Creators: name: Berrada, Ghita
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Inflammation
subject: Infection
subject: Cysts
subject: Diagnostic procedure
subject: Contrast agent-intravenous
subject: Complications
subject: Ultrasound
subject: CT
subject: Pancreas
subject: Emergency
subject: Abdomen

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: to highlight the high utility and accuracy of the CT in assessing the diagnosis, staging and detecting complications of acute pancreatitis to help radiologists to incorporate the new lexicon into clinical practice using. to focus on key imaging...
Occupation numbers in strongly polarized Fermi gases and the Luttinger theorem
Creators: name: Urban, Michael
name: Schuck, Peter
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study a two-component Fermi gas that is so strongly polarized that it remains normal fluid at zero temperature. We calculate the occupation numbers within the particle-particle random-phase approximation, which is similar to the Nozieres-Schmitt-Rink approach. We show that the Luttinger theorem is fulfilled in this approach. We also study the change of the chemical potentials which allows us to extract, in the limit of extreme polarization, the polaron energy.
description: 8 pages, 8 figures
Genus one factors of curves defined by separated variable polynomials
Creators: name: An, Ta Thi Hoai
name: Diep, Nguyen Thi Ngoc
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We give some sufficient conditions on complex polynomials P and Q to assure that the algebraic plane curve P(x)-Q(y)=0 has no irreducible component of genus 0 or 1. Moreover, if deg (P)=deg (Q) and if both P, Q satisfy Hypothesis I introduced by H. Fujimoto, our sufficient conditions are necessary.
title: Hybrid (CT and MR) 3D printing models in chest tumors: How I do it step-by-step
Creators: name: Broncano, Jordi
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Thorax
subject: MR-Functional imaging
subject: Computer Applications-3D
subject: Cancer

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1. To review the principles of 3D printing , technical aspects, segmentation tools and fusion algorithms for 3D segmentation in thoracic neoplasms. 2. To show, in a cased – based approach , the steps necessary to do a pre - surgical 3D printing...
title: Ischemic Stroke: Systematic Vascular Imaging from Head to Heart
Creators: name: Marinescu, Andrei Victor
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Education and training
subject: Thrombolysis
subject: MR
subject: CT-Angiography
subject: CT
subject: Head and neck
subject: CNS
subject: Cardiovascular system
subject: Ischaemia / Infarction

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Learning objectives: 1. To know the different etiologies of strokes 2. To showcase typical imaging findings of all etiologies 3. To know key points of evaluation for each...
title: An Improved Method for Transferring Nucleic Acids to Nylon Membranes
Creators: name: Parker, Bruce D.
Publisher: name: Utah State University
Year: 1987

description: Methods currently in use for the separation and identification of specific segments of nucleic acids involve long transfer periods or elaborate apparatuses and result in the production of a single blot. Contamination by organisms or enzymes is always a factor to be dealt with. An improved method for transferring nucleic acids from acrylamide or agarose gels for use in hybridization has been developed. This method uses NaOH as the blotting medium to improve the rate and efficiency of transfer to nylon membranes. As many as six blots can be obtained within one hour using this method. This method is effective for both viral double-strand RNA and single-strand RNA. By using 0.2 N NaOH as the transfer medium, and using nylon membranes for blotting, the nucleic acid appears to be covalently fixed to the membrane. These blots can be stripped of the probe and reused. In our studies with viral dsRNA, as little as 3.2 ng of total nucleic acid can be detected on the blot. This method provides a great improvement over previous methods for blotting and hybridization of both ss-and dsRNA and shows promise for use with dsDNA.
title: Calcaneal Apophysitis (Sever´s Disease) a Poorly Identified Pathology: Easy Radiological Evaluation.
Creators: name: Dautt Medina, Paulette
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Education and training
subject: Education
subject: MR
subject: Digital radiography
subject: Paediatric
subject: Musculoskeletal system
subject: Musculoskeletal bone

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To identify the normal aspects of the secondary ossification center of the calcaneus. To know the causes of heel pain in children and adolescents. To identify the most common radiological findings in Sever´s...
title: Magnetic resonance imaging (MRI) of focal spinal cord displacement.
Creators: name: El Khatib Ghzal, Yasmin
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Cerebrospinal fluid
subject: Education
subject: Diagnostic procedure
subject: MR
subject: Neuroradiology spine
subject: CNS

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To describe magnetic resonance imaging (MRI) findings and the differential diagnosis of focal spinal cord displacement, with special emphasis in idiopathic spinal cord herniation, intradural arachnoid cysts and spinal arachnoid webs...
title: Single Point of Failure (SPOF) – a useful concept and mnemonic to reduce reporting errors in cancer imaging.
Creators: name: Saeed, Asad
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Education and training
subject: Safety
subject: CT
subject: Oncology

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Review the concept of Single Point of Failure (SPOF) in technology industries and its potential use in radiology to reduce error and improve patient care. Highlight commonly missed pathologies in oncology imaging derived from archive analysis of...
Extending two-Higgs-doublet models by a singlet scalar field - the Case for Dark Matter
Creators: name: Drozd, Aleksandra
name: Grzadkowski, Bohdan
name: Gunion, John F.
name: Jiang, Yun
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We extend the two-Higgs doublet models of Type I and Type II by adding a real gauge-singlet scalar S dark matter candidate (2HDMS models). We impose theoretical constraints deriving from perturbativity, stability, unitarity and correct electroweak symmetry breaking and require that the lightest CP-even Higgs, h, fit the LHC data for the $\sim 125.5$ GeV state at the $68\%$~C.L. after including existing constraints from LEP and B physics and LHC limits on the heavier Higgs bosons. We find that these models are easily consistent with the LUX and SuperCDMS limits on dark-matter-Nucleon scattering and the observed $Ωh^2$ for S masses above about 55 GeV. At lower $m_S$, the situation is more delicate. For points with $m_S$ in the 6-25 GeV range corresponding to the CDMS~II and CRESST-II positive signal ranges, the dark-matter-Nucleon cross sections predicted by the Type I and Type II models more or less automatically fall within the $95\%-99\%$~C.L. signal region boundaries. Were it not for the LUX and SuperCDMS limits, which exclude all (almost all) such points in the case of Type I (Type II), this would be a success for the 2HDMS models. In fact, in the case of Type II there are a few points with 5.5 GeV $\leq m_S \leq$ 6.2 GeV that survive the LUX and SuperCDMS limits and fall within the CDMS~II 99\% C.L. signal region. Possibilities for dark matter to be isospin-violating in this 2HDMS context are also examined.
description: 30 pages, 20 figures, 6 tables
title: The natural wonders of radiology - a pictorial review
Creators: name: Hadnagy, László
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: CNS
subject: Thorax
subject: Abdomen
subject: CT
subject: MR
subject: Ultrasound
subject: Education
subject: Diagnostic procedure
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To present the most frequently used radiological signs inspired from the nature surrounding us in a pictorial review. To provide our colleagues with an interesting educational...
Urokinase type plasminogen activator receptor (uPAR) as a new therapeutic target in cancer
Creators: name: Montuori, Nunzia
name: Pesapane, Ada
name: Rossi, Francesca Wanda
name: Giudice, Valentina
name: De Paulis, Amato
name: Selleri, Carmine
name: Ragno, Pia
Publisher: name: Universita' degli Studi di Salerno
Year: 2016
Subjects: uPAR
Metastasis
Plasminogen activation
Monoclonal antibody
Small molecules

description: The urokinase (uPA)-type plasminogen activator receptor (uPAR) is a GPIanchored receptor that focuses urokinase (uPA) proteolytic activity on the cell surface. uPAR also regulates cell adhesion, migration and proliferation, protects from apoptosis and contributes to epithelial mesenchymal transition (EMT), independently of uPA enzymatic activity. Indeed, uPAR interacts with beta1, beta2 and beta3 integrins, thus regulating their activities. uPAR cross-talks with receptor tyrosine kinases through integrins and regulates cancer cell dormancy, proliferation and angiogenesis. Moreover, uPAR mediates uPA-dependent cell migration and chemotaxis induced by fMet-Leu-Phe (fMLF), through its association with fMLF-receptors (fMLFRs). Further, uPAR is an adhesion receptor because it binds vitronectin (VN), a component of provisional extracellular matrix. High uPAR expression predicts for more aggressive disease in several cancer types for its ability to increase invasion and metastasis. In fact, uPAR has been hypothesized to be the link between tumor cell dormancy and proliferation that usually precedes the onset of metastasis. Thus, inhibiting uPAR could be a feasible approach to affect tumor growth and metastasis. Here, we review the more recent advances in the development of uPAR-targeted anti-cancer therapeutic agents suitable for further optimization or ready for the evaluation in early clinical trials.
Comparison of optimal performance at 300 keV of three direct electron detectors for use in low dose electron microscopy
Creators: name: McMullan, G.
name: Faruqi, A. R.
name: Clare, D.
name: Henderson, R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Low dose electron imaging applications such as electron cyro-microscopy are now benefitting from the improved performance and flexibility of recently introduced electron imaging detectors in which electrons are directly incident on backthinned CMOS sensors. There are currently three commercially available detectors of this type: the Direct Electron DE 20, the FEI Falcon II and the Gatan K2 Summit. These have different characteristics and so it is important to compare their imaging properties carefully with a view to optimising how each is used. Results at 300 keV for both the modulation transfer function (MTF) and detective quantum efficiency (DQE) are presented. Of these, the DQE is the most important in the study of radiation sensitive samples where detector performance is crucial. We find that all three detectors have a better DQE than film. The K2 Summit has the best DQE at low spatial frequencies but with increasing spatial frequency its DQE falls below that of the Falcon II.
description: 9 pages, 5 figures
Engineering the microstructure and magnetism of La$_2$CoMnO$_6$ thin films by tailoring oxygen stoichiometry
Creators: name: Galceran, R.
name: Frontera, C.
name: Balcells, Ll.
name: Cisneros-Fernández, J.
name: Mir, L. López
name: Roqueta, J.
name: Santiso, J.
name: Bagués, N.
name: Bozzo, B.
name: Pomar, A.
name: Sandiumenge, F.
name: Martínez, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the magnetic and structural properties of ferromagnetic-insulating La$_2$CoMnO$_6$ thin films grown on top of (001) STO substrates by means of RF sputtering technique. Careful structural analysis, by using synchrotron X-ray diffraction, allows identifying two different crystallographic orientations that are closely related to oxygen stoichiometry and to the features (coercive fields and remanence) of the hysteresis loops. Both Curie temperature and magnetic hysteresis turn out to be dependent on the oxygen stoichiometry. In situ annealing conditions allow tailoring the oxygen content of the films, therefore controlling their microstructure and magnetic properties.
title: Acute ischaemic stroke due to tandem vertebrobasilar occlusions - case series
Creators: name: Harsan, Oana
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Neuroradiology brain
subject: Interventional vascular
subject: CNS
subject: Catheter arteriography
subject: Fluoroscopy
subject: CT-Angiography
subject: Recanalisation
subject: Removal
subject: Angioplasty
subject: Embolism / Thrombosis
subject: Acute
subject: Ischaemia / Infarction

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Recognising a posterior circulation acute ischaemic stroke - clinical evaluation and imaging features. Importance of evaluation of both extra and intracranial arterial vessels on neuroimaging studies in case of acute ischemic stroke. Technique and...
Carbon-Enhanced Metal-Poor Star Frequencies in the Galaxy: Corrections for the Effect of Evolutionary Status on Carbon Abundances
Creators: name: Placco, Vinicius M.
name: Frebel, Anna
name: Beers, Timothy C.
name: Stancliffe, Richard J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We revisit the observed frequencies of Carbon-Enhanced Metal-Poor (CEMP) stars as a function of the metallicity in the Galaxy, using data from the literature with available high-resolution spectroscopy. Our analysis excludes stars exhibiting clear over-abundances of neutron-capture elements, and takes into account the expected depletion of surface carbon abundance that occurs due to CN processing on the upper red-giant branch. This allows for the recovery of the initial carbon abundance of these stars, and thus for an accurate assessment of the frequencies of carbon-enhanced stars. The correction procedure we develope is based on stellar-evolution models, and depends on the surface gravity, log g, of a given star. Our analysis indicates that, for stars with [Fe/H]<=-2.0, 20% exhibit [C/Fe]>=+0.7. This fraction increases to 43% for [Fe/H]<=-3.0 and 81% for [Fe/H]<=-4.0, which is higher than have been previously inferred without taking the carbon-abundance correction into account. These CEMP-star frequencies provide important inputs for Galactic and stellar chemical-evolution models, as they constrain the evolution of carbon at early times and the possible formation channels for the CEMP-no stars. We also have developed a public online tool with which carbon corrections using our procedure can be easily obtained.
description: 27 pages, 16 figures; accepted for publication in ApJ
Adaptive Anchored Inversion for Gaussian Random Fields Using Nonlinear Data
Creators: name: Zhang, Zepu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: In a broad and fundamental type of ''inverse problems'' in science, one infers a spatially distributed physical attribute based on observations of processes that are controlled by the spatial attribute in question. The data-generating field processes, known as ''forward processes'', are usually nonlinear with respect to the spatial attribute, and are often defined non-analytically by a numerical model. The data often contain a large number of elements with significant inter-correlation. We propose a general statistical method to tackle this problem. The method is centered on a parameterization device called ''anchors'' and an iterative algorithm for deriving the distribution of anchors conditional on the observed data. The algorithm draws upon techniques of importance sampling and multivariate kernel density estimation with weighted samples. Anchors are selected automatically; the selection evolves in iterations in a way that is tailored to important features of the attribute field. The method and the algorithm are general with respect to the scientific nature and technical details of the forward processes. Conceptual and technical components render the method in contrast to standard approaches that are based on regularization or optimization. Some important features of the proposed method are demonstrated by examples from the earth sciences, including groundwater flow, rainfall-runoff, and seismic tomography.
description: 36 pages, 14 figures (some symbols in Figures 11, 12 were partially damaged by arxiv processing)
title: "There is a border in the system": exploring borders, death & classification in the UK
Creators: name: McCurdy, Martha
Publisher: name: London School of Economics and Political Science (LSE)
Year: 2022

description: This thesis investigates what and how we consider a border death. It interrogates the different legal, political, and humanitarian frameworks that adjudicate and interpret a border death. The term border deaths have become synonymous with the deaths of migrants and refugees at the European-Mediterranean and US-Mexico borders. By focusing on the UK, my research provides a novel empirical context and aims to expand mainstream understandings of the term, as well as drawing attention to the violence of the UK’s immigration systems and everyday borders. My research shows the importance of conceptualising borders beyond territorial zones. By researching border deaths, this work seeks to establish new avenues of sociological inquiry within death studies. Through interviews with groups documenting border deaths, observations of coronial inquests, analysis of media, human rights reports and parliamentary debates, my research demonstrates the nuances, complexities, and divergences in classifying border deaths. The different ethical dilemmas faced during the research process also shape my thesis. This involves discussing how I engage with and write about death, as well as reflecting upon my own positionality. As I argue, ethical tensions relating to sensitive research cannot and should not be overcome. This thesis demonstrates that some existing legal, political, and official frameworks used to record and classify border deaths are insufficient. The existing limits within these frameworks fail to acknowledge state complicity, responsibility, or inaction. This thesis calls into question the wider political and historical conditions including structural and systemic violence that lead to border deaths. It interrogates classificatory terms relating to death such as ‘natural causes’ or deaths that fall under a discourse of criminality and their underlying relationship with state responsibility. I make the case that understandings of the term border death must be reflective of the proliferation and ever evolving nature of borders. As this thesis shows a border death is not limited to geographic boundaries but includes deaths relating to histories and categories of illegality which are racialised and politicised. By expanding our understanding of border deaths this research generates wider debate around state and societal accountability.
title: Breast cancer in men: a pictorial essay
Creators: name: Hernández Zendejas, Claudia Ivette
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Cancer
subject: Diagnostic procedure
subject: Ultrasound
subject: MR
subject: Mammography
subject: Oncology
subject: Breast

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: We aim to provide the general radiologist with a pictorial review in order to: Review the incidence of breast cancer in men. Review risk factors for breast cancer in men. Assess the clinical presentation of breast cancer in men. Describe the most...
title: Soft tissue sarcomas of the head and the neck
Creators: name: Fraj, Bouhajja
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Musculoskeletal soft tissue
subject: Oncology
subject: Soft tissues / Skin
subject: CT
subject: MR
subject: Ultrasound
subject: Chemotherapy
subject: Ablation procedures
subject: Cancer
subject: Neoplasia

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Describe the imaging features of head and neck soft tissuessarcomas. Identify radiologic signs suggesting malignancy. Emphasize the importance of CT scan and MRI in planning treatment (loco regional...
Encoding the structure of many-body localization with matrix product operators
Creators: name: Pekker, David
name: Clark, Bryan K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Anderson insulators are non-interacting disordered systems which have localized single particle eigenstates. The interacting analogue of Anderson insulators are the Many-Body Localized (MBL) phases. The natural language for representing the spectrum of the Anderson insulator is that of product states over the single-particle modes. We show that product states over Matrix Product Operators of small bond dimension is the corresponding natural language for describing the MBL phases. In this language all of the many-body eigenstates are encode by Matrix Product States (i.e. DMRG wave function) consisting of only two sets of low bond-dimension matrices per site: the $G_i$ matrix corresponding to the local ground state on site $i$ and the $E_i$ matrix corresponding to the local excited state. All $2^n$ eigenstates can be generated from all possible combinations of these matrices.
title: Overview of MRI scoring systems for assessment of knee cartilage defects
Creators: name: Gergar, Maša
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Computer Applications-Detection, diagnosis
subject: Statistics
subject: FOS: Mathematics
subject: MR
subject: Musculoskeletal joint
subject: Extremities
subject: Bones
subject: Arthritides

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The presentation describes the basic characteristics of standard MRI scoring systems and compares their most prominent features, advantages and disadvantages for assessment of knee cartilage defects in osteoarthritis...
Eigenvalues and strong orbit equivalence
Creators: name: Cortez, Maria Isabel
name: Durand, Fabien
name: Petite, Samuel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We give conditions on the subgroups of the circle to be realized as the subgroups of eigenvalues of minimal Cantor systems belonging to a determined strong orbit equivalence class. Actually, the additive group of continuous eigenvalues E(X,T) of the minimal Cantor system (X,T) is a subgroup of the intersection I(X,T) of all the images of the dimension group by its traces. We show, whenever the infinitesimal subgroup of the dimension group associated to (X,T) is trivial, the quotient group I(X,T)/E(X,T) is torsion free. We give examples with non trivial infinitesimal subgroups where this property fails. We also provide some realization results.
description: 18 p
title: Spontaneous Abdominal Hematomas: A Practical Approach
Creators: name: Ramirez, Diego
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Obstetrics
subject: Haemorrhage
subject: Diagnostic procedure
subject: CT-Angiography
subject: CT
subject: Vascular
subject: Anatomy
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: After reviewing this educational exhibit you will be able to: Remember the abdominal, peritoneal and extraperitoneal anatomy, and their communications. Identify radiological signs of active bleeding and spontaneous hematomas. Determine the origin...
title: Pseudoaneurysms: all you need to know
Creators: name: Lamprecht, Yasmina
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Stents
subject: Image compression
subject: Embolisation
subject: Ultrasound
subject: CT
subject: Catheter arteriography
subject: Musculoskeletal soft tissue
subject: Arteries / Aorta
subject: Aneurysms

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To review the pathophysiology, etiology, symptomatology, differential diagnosis, evolution and location of pseudoaneurysms. To analyze the typical imaging findings. To revise the treatment indications and...
title: Segmental Arterial Mediolysis: Do you remember what to search for?
Creators: name: Ramirez, Diego
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Dissection
subject: Aneurysms
subject: Diagnostic procedure
subject: Computer Applications-3D
subject: MR-Angiography
subject: CT-Angiography
subject: CT
subject: Contrast agents
subject: Arteries / Aorta
subject: Abdomen
subject: Ischaemia / Infarction

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: After reviewing this educational exhibit you will be able to: Understandphysiopathology of segmental arterial mediolysis (SAM) with radiologiccorrelation Learn SAM diagnostic criteria, differential diagnosis and updated clinical...
title: Μελέτη οστικής πυκνομετρίας με νεότερες απεικονιστικές μεθόδους σε ασθενείς με χρόνια αποφρακτική πνευμονοπάθεια
titleType: AlternativeTitle
Creators: name: Φουντούλης, Γεώργιος
Publisher: name: University of Thessaly
Year: 2014
Subjects: subject: ΟΣΤΕΟΠΟΡΩΣΗ -- ΔΙΑΓΝΩΣΗ
subject: ΟΣΤΙΚΗ ΠΥΚΝΟΜΕΤΡΙΑ
subject: ΠΝΕΥΜΟΝΕΣ -- ΑΣΘΕΝΕΙΕΣ , ΑΠΟΦΡΑΚΤΙΚΕΣ

description: Σημείωση: διατίθεται συμπληρωματικό υλικό σε ξεχωριστό αρχείο.
Constraining the Higgs-Dilaton with LHC and Dark Matter Searches
Creators: name: Efrati, Aielet
name: Kuflik, Eric
name: Nussinov, Shmuel
name: Soreq, Yotam
name: Volansky, Tomer
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study a scenario in which the dilaton, a pseudo-Goldstone boson of the spontaneous breaking of conformal symmetry, provides a portal between dark matter and the visible sector. We consider the low-energy description of the theory in which the dilaton mixes with the Standard Model Higgs boson, thereby predicting a second scalar at or above the weak scale. We derive the collider and dark matter constraints on the corresponding parameter space and find that existing experimental data point towards the decoupling limit in which the CFT scale is well above the electroweak scale. Moreover, the thermal production of dark matter implies its mass is likely above the TeV scale. Upcoming direct detection experiments may allow for the discovery of the dilaton-mediated thermal dark matter while future collider studies will also be sensitive to the available parameter space.
description: 8 pages, 3 figures
Complete RNA inverse folding: computational design of functional hammerhead ribozymes
Creators: name: Dotu, Ivan
name: Garcia-Martin, Juan Antonio
name: Slinger, Betty L.
name: Mechery, Vinodh
name: Meyer, Michelle M.
name: Clote, Peter
Publisher: name: arXiv
Year: 2014
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: Nanotechnology and synthetic biology currently constitute one of the most innovative, interdisciplinary fields of research, poised to radically transform society in the 21st century. This paper concerns the synthetic design of ribonucleic acid molecules, using our recent algorithm, RNAiFold, which can determine all RNA sequences whose minimum free energy secondary structure is a user-specified target structure. Using RNAiFold, we design ten cis-cleaving hammerhead ribozymes, all of which are shown to be functional by a cleavage assay. We additionally use RNAiFold to design a functional cis-cleaving hammerhead as a modular unit of a synthetic larger RNA. Analysis of kinetics on this small set of hammerheads suggests that cleavage rate of computationally designed ribozymes may be correlated with positional entropy, ensemble defect, structural flexibility/rigidity and related measures. Artificial ribozymes have been designed in the past either manually or by SELEX (Systematic Evolution of Ligands by Exponential Enrichment); however, this appears to be the first purely computational design and experimental validation of novel functional ribozymes. RNAiFold is available at http://bioinformatics.bc.edu/clotelab/RNAiFold/.
description: 17 pages, 2 tables, 7 figures, final version to appear in Nucleic Acids Research
title: Magnetic resonance imaging assessment of low rectal tumors
Creators: name: Antunes, Ricardo
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Cancer
subject: Diagnostic procedure
subject: MR
subject: Pelvis
subject: Oncology
subject: Gastrointestinal tract

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Review the magnetic resonance imaging (MRI) features of low rectal tumors. Review the role of MRI in staging and treatment...
Paideia e mito. La funzione politica della mitopoiesi in Timeo, Crizia e Repubblica X
Creators: name: Casella, Federico
Publisher: name: Universita degli studi di Salerno
Year: 2020
Subjects: subject: M-FIL/07 STORIA DELLA FILOSOFIA ANTICA
subject: Platone
subject: Filosofia politica
subject: Mitologia

description: 2018 - 2019
description: La tesi “Paideia e mito. La funzione politica della mitopoiesi in Timeo, Crizia e Repubblica X” si propone lo scopo di indagare la rilevanza politica ed educativa di alcuni miti di Platone. Le analisi saranno condotte cercando di rispondere a un preciso interrogativo, e cioè fornire un’identità al possibile destinatario preferenziale che Platone aveva in mente per determinati dialoghi o per alcune sezioni di un dialogo. Saranno presi in considerazione il libro X della Repubblica, il Timeo e il Crizia, al fine di mostrare che questi dialoghi sono destinati, rispettivamente, a un pubblico composto da uomini non filosofi, da filosofi, da guerrieri, per far loro sviluppare le virtù necessarie per essere inquadrati nella città perfetta descritta nella Repubblica. Si cercherà di provare, quindi, che per Platone la riforma politica descritta nella Repubblica era un progetto imprescindibile, e che aveva tentato in diverse modalità di realizzare. [a cura dell'Autore]
description: The aim of my PhD dissertation “Paideia and myth. The political function of mythopoiesis in Timaeus, Critias and Republic X” is to analyze the political and educational relevance of some of Plato’s myths. I will try to identify the main addressee that Plato had in mind for certain dialogues or for some mythical sections of his dialogues. I will consider book X of the Republic, the Timaeus, and the Critias: these dialogues mightpresuppose respectively an audience of non-philosophers, philosophers, and warriors and be intended to spread the necessary virtues to transform this audience in the citizens of the perfect city described in the Republic.Therefore, I will try to prove that Plato intended the political reform of the Republic an indispensable project, and that he tried to establish it with the diffusion of some myths. [edited by Author]
Low temperature dynamics of nonlinear Luttinger liquids
Creators: name: Karrasch, C.
name: Pereira, R. G.
name: Sirker, J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We generalize nonlinear Luttinger liquid theory to describe the dynamics of one-dimensional quantum critical systems at low temperatures. Analyzing density-matrix renormalization group results for the spin autocorrelation function in the XXZ chain we provide, in particular, direct evidence for spin diffusion in sharp contrast to the exponential decay in time predicted by conventional Luttinger liquid theory. Furthermore, we discuss how the frequencies and exponents of the oscillatory contributions from the band edges are renormalized by irrelevant interactions and obtain excellent agreement between our finite temperature nonlinear Luttinger liquid theory and the numerical data.