cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Radiation Magnetohydrodynamic Simulations of Sub-Eddington accretion Flows in AGN: Origin of Soft X-ray Excess and Rapid Time Variabilities
Creators: name: Igarashi, Taichi
name: Kato, Yoshiaki
name: Takahashi, Hiroyuki R.
name: Ohsuga, Ken
name: Matsumoto, Yosuke
name: Matsumoto, Ryoji
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the origin of the soft X-ray excess component in Seyfert galaxies observed when their luminosity exceeds 0.1% of the Eddington luminosity ($L_{\mathrm{Edd}}$). The evolution of a dense blob in radiatively inefficient accretion flow (RIAF) is simulated by applying a radiation magnetohydrodynamic code, CANS+R. When the accretion rate onto a $10^7M_{\odot}$ black hole exceeds 10% of the Eddington accretion rate ($\dot M_{\rm Edd}=L_{\rm Edd}/c^2$, where $c$ is the speed of light)}, the dense blob shrinks vertically because of radiative cooling and forms a Thomson thick, relatively cool ($\sim10^{7-8}$ K) region. The cool region coexists with the optically thin, hot ($T\sim10^{11}~\mathrm{K}$) RIAF near the black hole. The cool disk is responsible for the soft X-ray emission, while hard X-rays are emitted from the hot inner accretion flow. The soft X-ray emitting region coexists with the optically thin, hot ($T \sim 10^{11}~\mathrm{K}$), radiatively inefficient accretion flow (RIAF) near the black hole. Such a hybrid structure of hot and cool accretion flows is consistent with the observations of both hard and soft X-ray emissions from `changing-look' active galactic nuclei (CLAGN). Furthermore, we find that quasi-periodic oscillations (QPOs) are excited in the soft X-ray emitting region. These oscillations can be the origin of rapid X-ray time variabilities observed in CLAGN.
description: 23 pages, 18 figures, Accepted for publication in ApJ
title: Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia: a diagnostic challenge
Creators: name: Morais Aguiar Ferreira, Ana Isabel
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Chest imaging
subject: Lung
subject: Thorax
subject: CT
subject: CT-High Resolution
subject: Clinical Cases

description: Clinical History: We present a case of a Caucasian 79-year-old-woman, non-smoker, with chronic dry cough for about 10 years and episodes of exertional dyspnoea and wheezing. Chronic obstructive pulmonary disease was diagnosed and medicated with corticosteroid and long-acting β-agonist inhalers.

description: 79 years, female
Die Zukunft der Familie: Anthropologische Grundlagen und ethische Herausforderungen
Creators: name: Schockenhoff, Eberhard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 67 Nr. 1 (2018): Ökumenische Rundschau, Band 67, Heft 1
WFCAM, Spitzer-IRAC and SCUBA observations of the massive star forming region DR21/W75: II. Stellar content and star formation
Creators: name: Kumar, M. S. N.
name: Davis, C. J.
name: Grave, J. M. C.
name: Ferreira, B.
name: Froebrich, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Wide field near-infrared observations and Spitzer Space Telescope IRAC observations of the DR21/W75 star formation regions are presented. The photometric data are used to analyse the extinction, stellar content and clustering in the entire region by using standard methods. A young stellar population is identified all over the observed field, which is found to be distributed in embedded clusters that are surrounded by a distributed halo population extending over a larger projected area. The Spitzer/IRAC data are used to compute a spectral index value, "alpha", for each YSO in the field. We use these data to separate pure photospheres from disk excess sources. We find a small fraction of sources with "alpha" in excess of 2 to 3 (plus a handful with "alpha"~4), which is much higher than the values found in the low mass star forming region IC348 ("alpha" < 2). The sources with high values of "alpha" spatially coincide with the densest regions of the filaments and also with the sites of massive star formation. Star formation is found to be occuring in long filaments stretching to few parsecs that are fragmented over a scale of ~ 1 pc. The spatial distribution of young stars are found to be correlated with the filamentary nebulae that are prominently revealed by 8micron and 850micron observations. Five filaments are identified that appear to converge on a center that includes the DR21/DR21(OH) regions. The morphological pattern of filaments and clustering compare well with numerical simulations of star cluster formation by Bate et al. 2003.
description: 11 pages, 7 figures, 1 table
Transitions in the multigenerational families of urban, low-income, African American adolescent mothers
Creators: name: Oberlander, Sarah E.
Publisher: name: Maryland Shared Open Access Repository
Year: 2008
Subjects: Psychology, General (0621)
Adolescent mothers
Parenting
Multigenerational families
Coresidence

description: Despite declining rates of adolescent births over the past decade, the United States continues to have the highest incidence of such births among industrialized nations. Many adolescent mothers continue to live in their household of origin following an adolescent birth, and the Personal Responsibility and Work Opportunity Reconciliation Act (PRWORA) of 1996 requires parents under the age of 18 to live in adult-supervised settings in order to qualify for public benefits. This mandate was based on the belief that living with an adult would promote educational and economic attainment for adolescent mothers. Little research has investigated long-term outcomes for mothers and children following the 1996 passage of PRWORA. This study employed a family systems approach to explore transitions in the lives of adolescent mothers, grandmothers, and children over the first 7 years postpartum. Participants included 181 primiparous, urban, low-income, African American adolescent mothers who were recruited as part of a longitudinal randomized controlled trial of home intervention designed to promote parenting and adolescent development. This study explored associations between residential patterns and early caregiving assessed over the first 24 months postpartum and mother, child, and grandmother outcomes measured at 7 years, including parenting sense of satisfaction and efficacy, child academic achievement and behavior, and grandparenting stress. Nearly all of the adolescent mothers left the multigenerational household at least once over the first seven years postpartum. Residential patterns did not predict academic or behavior outcomes for children or mothers' parenting sense of satisfaction or efficacy, and we found no evidence that residence in the household of origin was optimal for children or mothers. Early mother involvement in caregiving predicted positive child behavior outcomes at 7 years postpartum, suggesting that adoption of the parent role may lead to positive long-term outcomes for children. Family systems theory may not be sufficient to understand role adoption and change and stability in the highly mobile families of urban, low-income, African American adolescent mothers. Rather than focusing on required coresidence and the advantages of shared caregiving, practitioners and policy makers should consider efforts to promote early mother involvement in caregiving and adoption of the parent role.
title: A case of Myelin Oligodendrocyte Glycoprotein (MOG) antibody disease
Creators: name: Ravichandran, Aishwarya
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Neuroradiology
subject: Neuroradiology brain
subject: Neuroradiology spine
subject: MR
subject: Clinical Cases

description: Clinical History: A 19-year-old male presented with a history of numbness of both lower limbs and difficulty in walking for 2 days with progressive involvement of both upper limbs. There was also blurring of vision in the left eye. On examination, there was reduced sensation in both upper and lower limbs with an ataxic gait.

description: 19 years, male
Attentional Local Contrast Networks for Infrared Small Target Detection
Creators: name: Dai, Yimian
name: Wu, Yiquan
name: Zhou, Fei
name: Barnard, Kobus
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: To mitigate the issue of minimal intrinsic features for pure data-driven methods, in this paper, we propose a novel model-driven deep network for infrared small target detection, which combines discriminative networks and conventional model-driven methods to make use of both labeled data and the domain knowledge. By designing a feature map cyclic shift scheme, we modularize a conventional local contrast measure method as a depth-wise parameterless nonlinear feature refinement layer in an end-to-end network, which encodes relatively long-range contextual interactions with clear physical interpretability. To highlight and preserve the small target features, we also exploit a bottom-up attentional modulation integrating the smaller scale subtle details of low-level features into high-level features of deeper layers. We conduct detailed ablation studies with varying network depths to empirically verify the effectiveness and efficiency of the design of each component in our network architecture. We also compare the performance of our network against other model-driven methods and deep networks on the open SIRST dataset as well. The results suggest that our network yields a performance boost over its competitors. Our code, trained models, and results are available online.
description: Accepted by IEEE TGRS
title: Chondromyxoid Fibroma: A case study
Creators: name: Abu-Jabeh, Hamyza
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Musculoskeletal system
subject: Anatomy
subject: Bones
subject: Musculoskeletal bone
subject: Musculoskeletal system
subject: CT
subject: MR
subject: Clinical Cases

description: Clinical History: An 11-year-old boy presented to the emergency department with a 10-day history of pain in his right thigh following an accidental fall. The pain was described as a dull ache and rated 3/10. He was seen and sent home without having any x-rays. He managed to mobilize with difficulty using crutches. As the lower leg pain worsened, his mother contacted the GP.  Subsequently, she was advised to bring him back and that is when an x-ray was taken. He denied any paraesthesia or pain elsewhere. He had did not have any significant past medical or surgical history.

description: 11 years, male
title: CT appearance of a gastric schwannoma
Creators: name: Pérez Hernández, Gloria
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Abdominal imaging
subject: Abdomen
subject: Gastrointestinal tract
subject: Stomach (incl. Oesophagus)
subject: CT
subject: Diagnostic procedure
subject: Neoplasia
subject: Clinical Cases

description: Clinical History: A 59-year-old female was admitted to our hospital, sent from her family doctor for refractory gastroesophageal reflux disease. On upper GI endoscopy, there was a submucosal bulging at the gastric fundus(Fig.1). She underwent ultrasound-guided fine-needle aspiration(FNA) and a contrast-enhanced abdominal CT with hydro-CT technique thereafter

description: 59 years, female
Supersymmetry and LHC
Creators: name: Gladyshev, A. V.
name: Kazakov, D. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The motivation for introduction of supersymmetry in high energy physics as well as a possibility for supersymmetry discovery at LHC (Large Hadronic Collider) are discussed. The main notions of the Minimal Supersymmetric Standard Model (MSSM) are introduced. Different regions of parameter space are analyzed and their phenomenological properties are compared. Discovery potential of LHC for the planned luminosity is shown for different channels. The properties of SUSY Higgs bosons are studied and perspectives of their observation at LHC are briefly outlined.
description: Lectures given at the 9th Moscow International School of Physics (XXXIV ITEP Winter School of Physics)
title: Acute mesenteric ischemia in old patient: a case report
Creators: name: Lagrue, Simon
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Abdominal imaging
subject: Cardiac
subject: Emergency
subject: Interventional vascular
subject: Echocardiography
subject: Ultrasound
subject: Clinical Cases

description: Clinical History: An 84-year-old confused man complained of abdominal pain, nausea, and breathlessness. Past medical history was noteworthy for chronic obstructive pulmonary disease. Examination revealed abdominal distension and periumbilical guarding, associated with mottled appearing legs. Mean blood pressure was >65 mmHg, SpO2 was >90% with oxygen therapy, heart rate and temperature normal. 

description: 84 years, male
Teaching Physics within STS Approach: Contributions Between Sciences and Act 10.639/2003
Creators: name: da Silva, Marcelo Vilela
name: Capossoli, Eduardo Folco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: This paper is aimed to develop formative actions about Science Technology and Society (STS) relations in the teaching of Physics in order to integrate Act 10.639/2003, which includes African, and Afro-Brazilian history and culture in school syllabuses. Besides we also aim to overcome the challenges found in the educational system and to enable students to learn about the contributions made by African societies regarding to the Science and technology. The methodological procedure included a written questionnaire, pre- and post-test, both with the students. The results have been proven relevant for the teaching of racial relations in the classroom.
description: V1: In Portuguese, 20 pages, 3 frames, 6 figures. This version matches the published one in Cadernos de Educa\c{c}\~ao B\'asica (CEB)
Simple Bounds from the Perturbative Regime of Inflation
Creators: name: Leblond, Louis
name: Shandera, Sarah
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine the conditions under which a perturbative expansion around an inflating background is valid. When inflation is driven by a single field with a general sound speed, we find a lower limit on the sound speed related to the amplitude of the inflationary power spectrum. Generalizing the sound speed constraints to include scale dependence can limit the number of e-folds obtained in the perturbative regime and restrict otherwise apparently viable models. We also show that for models with a low sound speed, eternal inflation cannot occur in the perturbative regime.
description: 26 pages, 4 figures, v3; added references and clarifications, typos corrected, published version
THE ROLE OF TEMPTATION AND SELF-EFFICACY AS PREDICTORS OF RELAPSE SEVERITY IN POSTTREATMENT ALCOHOLICS
Creators: name: Holmgren, Meredith Anne
Publisher: name: Maryland Shared Open Access Repository
Year: 2008
Subjects: Alcohol
MATCH
Relapse
Self-efficacy
Temptation
Transtheoretical
Psychology, Clinical (0622)
Psychology, Cognitive (0633)
Health Sciences, Mental Health (0347)

description: Relapse is a critical event in the cessation of all addictive behaviors, and is important in the process of changing alcohol consumption.  Temptation and self-efficacy have been identified as important predictors of relapse.  Additionally, the relationship between temptation and self-efficacy has been a predictor of outcome (Project MATCH, 1997).  Relapse vulnerability (RV) is a measure of the relationship between temptation to drink and self-efficacy to abstain. This study examined whether end-of-treatment RV (temptation minus confidence) predicted three dimensions of relapse severity: time to first drink, amount of drinks on first drinking day, and duration of drinking during the first week. Data were analyzed from Project MATCH, a multi-site treatment study designed to reduce alcohol consumption in alcohol dependent participants. Relapse vulnerability at end-of-treatment was related to all three relapse severity dimensions during the follow-up period. Additionally, end-of-treatment subscale scores of relapse vulnerability differentially predicted relapse severity, with social/positive relapse vulnerability predicting time to first drink, negative affect relapse vulnerability predicting amount of drinks on first drinking day, and withdrawal/urges relapse vulnerability predicting duration of drinking during the first week. Results suggest that posttreatment measurement of the discrepancy between temptation and self-efficacy is a sensitive predictor of various dimensions of relapse severity.
Wikipedias: Collaborative web-based encyclopedias as complex networks
Creators: name: Zlatic, V.
name: Bozicevic, M.
name: Stefancic, H.
name: Domazet, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Wikipedia is a popular web-based encyclopedia edited freely and collaboratively by its users. In this paper we present an analysis of Wikipedias in several languages as complex networks. The hyperlinks pointing from one Wikipedia article to another are treated as directed links while the articles represent the nodes of the network. We show that many network characteristics are common to different language versions of Wikipedia, such as their degree distributions, growth, topology, reciprocity, clustering, assortativity, path lengths and triad significance profiles. These regularities, found in the ensemble of Wikipedias in different languages and of different sizes, point to the existence of a unique growth process. We also compare Wikipedias to other previously studied networks.
description: v3: 9 pages, 12 figures, Change of title, few paragraphs and two figures. Accepted for publication in Phys. Rev. E
title: The Whirlpool Sign in Midgut Volvulus
Creators: name: Pinto, Joana F.
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Abdominal imaging
subject: Abdomen
subject: Gastrointestinal tract
subject: Conventional radiography
subject: CT
subject: Surgery
subject: Acute
subject: Clinical Cases

description: Clinical History: A 21-year-old girl presented to the emergency department with acute colic abdominal pain, and 6-hour history of nausea and vomiting. She had been previously diagnosed with irritable bowel syndrome attributed to intermittent changes in intestinal motility. On physical examination, she had a palpable tender epigastric mass. Laboratory studies were unremarkable.

description: 21 years, female
The coronal structure of Speedy Mic - II: Prominence masses and off-disc emission
Creators: name: Dunstone, N. J.
name: Cameron, A. Collier
name: Barnes, J. R.
name: Jardine, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Observations of stellar prominences on young rapidly rotating stars provide unique probes of their magnetic fields out to many stellar radii. We compare two independently obtained datasets of the K3 dwarf Speedy Mic using the Anglo-Australian Telescope (AAT) and the ESO Very Large Telescope (VLT). Taken more than a fortnight apart they provide the first insight into the evolution of the prominence system on such a young rapidly rotating star. The largest prominences observed transiting the stellar disc are found at very similar rotational phases between the epochs. This suggests that the magnetic structures supporting the prominences retain their identity on a two to three week timescale. We identify prominences as transient absorption features in all lines of the Hydrogen Balmer series down to H_10. We use the ratios of the prominence EWs in these lines to determine their column densities in the first excited state of hydrogen. We determine the optical depths, finding prominences to be rather optically thick (τ\approx 20) in the H_alpha line. The total hydrogen column density and thus the prominence masses are determined via observations of the CaII H&K lines. We find typical masses for four of the largest prominences to be in the range 0.5 - 2.3 x10^{14} kg, slightly larger than giant solar prominence masses. Rotationally modulated emission is seen outside of the H_alpha line. These loops of emission are shown to be caused by prominences seen off the stellar disc. We find that all of the large emission loops can be associated with prominences we see transiting the stellar disc. This combined with the fact that many prominences appear to eclipse the off-disc emission of others, strongly suggests that the prominence system is highly flattened and likely confined to low stellar latitudes.
description: 13 pages, 7 figures, accepted for publication in MNRAS, (Higher resolution greyscale images can be found at http://star-www.st-and.ac.uk/~njd2/speedy/index.html)
title: Intestinal malrotation with acute appendicitis
Creators: name: Nusret Celik, Enes
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Abdominal imaging
subject: Abdomen
subject: Gastrointestinal tract
subject: CT
subject: Acute
subject: Congenital
subject: Clinical Cases

description: Clinical History: A 36-year-old male admitted to the emergency department with abdominal pain around the umbilicus and in the left lower quadrant without any rebound.

description: 36 years, male
The Role of Picture Perception in Children's Vocabulary Test
Creators: name: Garrett, Adia Jasmine
Publisher: name: Maryland Shared Open Access Repository
Year: 2008
Subjects: Psychology, Developmental(0620)

description: Before test scores should be used for educational decision-making, it is important to determine the extent to which the test activates processes that are actually related to the skills it purports to measure. This study explored the role that picture perception plays in children's performance on the Word Knowledge subtest of the Gates MacGinitie Reading Test. Research has demonstrated that African American children have scored significantly lower than their European American peers on a receptive picture vocabulary test, but these studies did not use qualitative methods to explore the role picture interpretation plays in performance. To address limitations of previous picture vocabulary research, 128 second grade students from two predominantly African American school districts were randomly assigned to the following test conditions: a) Standard Administration Format. b) Think-Aloud. Students discussed how they selected answers. c) No-picture. Pictures were replaced with verbal definitions. d) Free Response. Students described the picture showed; no response choices were provided. These test conditions addressed three questions: a) Did performance differ as a function of test condition? b) Was syntactic class of the vocabulary items related to performance? c) What processes did children use to select their answers, especially for frequently missed items? Results revealed that overall, thinking aloud and the type of stim ulus (picture versus definition) was not related to performance. However, item-level analyses revealed 9 items in which performance differed based on stimulus type. For children in the standard and think-aloud conditions, performance was better on nouns and verbs than on adjectives, and performance on nouns and verbs was comparable. For the no-picture condition, performance was best on verbs and performance on nouns and adjectives was comparable. Think-alouds and free-responses revealed possible explanations for why students frequently missed some items, such as misinterpreting key elements of the picture, and choosing distracters. There was not sufficient evidence to conclude that the Word Knowledge subtest lacks substantive validity. However, error patterns revealed recommendations for test administration (e.g., use different prompts for each part of speech) and instruction (e.g., monitoring and cognitive flexibility) that could help to minimize errors related to picture perception skills.
Effects and interactions of orthographic depth and lexicality in Arabic visual word recognition: A lexical decision ERP study.
Creators: name: Idrissi, Ali
name: Muralikrishnan, R.
name: Mustafawi, Eiman
name: Khwaileh, Tariq
name: Drury, John E.
Publisher: name: Zenodo
Year: 2019
Subjects: EEG
Arabic
Diacritics
ERP Study

description: Poster presented at the 11th Annual Meeting of the Society for the Neurobiology of Language, 20-22 August 2019, Helsinki, Finland.
title: Cellular Angiofibroma, an unusual tumor of the inguinoscrotal region. The role of MRI
Creators: name: Florentin, Lautaro Manuel
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Uroradiology & genital male imaging
subject: Genital / Reproductive system male
subject: MR
subject: Ultrasound
subject: Clinical Cases

description: Clinical History: An 84-year-old male patient with chronic left scrotal pain. Hydrocele limited the testicular examination. Ultrasonography showed a large mass in the inguinoscrotal region. Left testicle was not involved. Magnetic Resonance Imaging confirmed the presence of a heterogeneous tumour. An inguinal tumorectomy was performed. Pathologic specimens revealed a fat-like tumour.

description: 84 years, male
Regular spinors and fermionic fields
Creators: name: Rogerio, R. J. Bueno
name: da Silva, J. M. Hoff
name: Villalobos, C. H. Coronado
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Bearing in mind the Lounesto spinor classification, we connect the expansion coefficients of well behaved fermionic quantum field, i.e., a local field within a full Lorentz covariant theory, with and only with a given subclass of Type-2 spinors according to Lounesto. We comment on theoretical possibilities as well as physical outputs for the other cases.
description: 7 pages, 0 figures
Optical spectroscopy of Galactic field Classical Be stars
Creators: name: Banerjee, Gourav
name: Mathew, Blesson
name: Paul, K. T.
name: Subramaniam, Annapurni
name: Bhattacharyya, Suman
name: Anusha, R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this study, we analyze the emission lines of different species present in 118 Galactic field classical Be stars in the wavelength range of 3800 - 9000 Å. We re-estimated the extinction parameter (A$_V$) for our sample stars using the newly available data from Gaia DR2 and suggest that it is important to consider A$_V$ while measuring the Balmer decrement (i.e. $D_{34}$ and $D_{54}$) values in classical Be stars. Subsequently, we estimated the Balmer decrement values for 105 program stars and found that $\approx$ 20\% of them show $D_{34}$ $\geq$ 2.7, implying that their circumstellar disc are generally optically thick in nature. One program star, HD 60855 shows H$α$ in absorption -- indicative of discless phase. From our analysis, we found that in classical Be stars, H$α$ emission equivalent width values are mostly lower than 40 Å, which agrees with that present in literature. Moreover, we noticed that a threshold value of $\sim$ 10 Å~of H$α$ emission equivalent width is necessary for Fe{\sc ii} emission to become visible. We also observed that emission line equivalent widths of H$α$, P14, Fe{\sc ii} 5169 and O{\sc i} 8446 Å~for our program stars tend to be more intense in earlier spectral types, peaking mostly near B1-B2. Furthermore, we explored various formation regions of Ca{\sc ii} emission lines around the circumstellar disc of classical Be stars. We suggest the possibility that Ca{\sc ii} triplet emission can originate either in the circumbinary disc or from the cooler outer regions of the disc, which might not be isothermal in nature.
description: 20 pages, 9 figures, accepted for publication in MNRAS
Competition between charge and spin order in the $t-U-V$ extended Hubbard model on the triangular lattice
Creators: name: Davoudi, B.
name: Hassan, S. R.
name: Tremblay, A. -M. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Several new classes of compounds can be modeled in first approximation by electrons on the triangular lattice that interact through on-site repulsion $U$ as well as nearest-neighbor repulsion $V$. This extended Hubbard model on a triangular lattice has been studied mostly in the strong coupling limit for only a few types of instabilities. Using the extended two-particle self consistent approach (ETPSC), that is valid at weak to intermediate coupling, we present an unbiased study of the density and interaction dependent crossover diagram for spin and charge density wave instabilities of the normal state at arbitrary wave vector. When $U$ dominates over $V$ and electron filling is large, instabilities are chiefly in the spin sector and are controlled mostly by Fermi surface properties. Increasing $V$ eventually leads to charge instabilities. In the latter case, it is mostly the wave vector dependence of the vertex that determines the wave vector of the instability rather than Fermi surface properties. At small filling, non-trivial instabilities appear only beyond the weak coupling limit. There again, charge density wave instabilities are favored over a wide range of dopings by large $V$ at wave vectors corresponding to $\sqrt(3) \times \sqrt(3)$ superlattice in real space. Commensurate fillings do not play a special role for this instability. Increasing $U$ leads to competition with ferromagnetism. At negative values of $U$ or $V$, neglecting superconducting fluctuations, one finds that charge instabilities are favored. In general, the crossover diagram presents a rich variety of instabilities. We also show that thermal charge-density wave fluctuations in the renormalized classical regime can open a pseudogap in the single-particle spectral weight, just as spin or superconducting fluctuations.
title: Azygos vein system thrombosis due to COVID-19 pneumonia and mediastinal abscess
Creators: name: Đudarić, Luka
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Chest imaging
subject: Thorax
subject: Veins / Vena cava
subject: Clinical Cases

description: Clinical History: A 58-year-old female patient was transferred from another hospital to our hospital after she was previously diagnosed with bilateral pneumonia as a result of a COVID-19 (corona virus) infection and posterior mediastinal abscess. Four hours after, she developed dyspnea and chest pain, which have become progressively more severe. 

description: 58 years, female
title: Transverse low sacral fracture
Creators: name: Dunlop Borquez, Dennis
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Musculoskeletal system
subject: Emergency
subject: CT
subject: MR
subject: Trauma
subject: Clinical Cases

description: Clinical History: A 30-years old neurologist felt walking down the stairs, landing on buttocks. During the physical examination, the emergency department physician noticed mild perianal hypoesthesia. 

description: 30 years, female
title: Leri – Weill syndrome: Madelung deformity
Creators: name: Navarro Ferris, Luis
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Musculoskeletal system
subject: Musculoskeletal bone
subject: Musculoskeletal joint
subject: Conventional radiography
subject: MR
subject: Clinical Cases

description: Clinical History: A 27-year-old woman presents to this primary care physician with progressive wrist pain and decreased grip strength. The pain was described as resistant to painkillers. The patient referred no trauma history and clinical examination revealed short stature because of shortening of the forelegs and forearms (Figure 1).

description: 27 years, female
title: Hepatic angiomyolipoma
Creators: name: Torregrosa Andres, Asuncion
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Abdominal imaging
subject: Abdomen
subject: Liver
subject: MR
subject: Clinical Cases

description: Clinical History: A 46-year-old man with no previous medical history was referred to our department due to increased liver function tests. Physical examination showed no abnormalities.

description: 46 years, male
Correlated electrons systems on the Apollonian network
Creators: name: Souza, Andre M. C.
name: Herrmann, Hans
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Strongly correlated electrons on an Apollonian network are studied using the Hubbard model. Ground-state and thermodynamic properties, including specific heat, magnetic susceptibility, spin-spin correlation function, double occupancy and one-electron transfer, are evaluated applying direct diagonalization and quantum Monte Carlo. The results support several types of magnetic behavior. In the strong-coupling limit, the quantum anisotropic spin 1/2 Heisenberg model is used and the phase diagram is discussed using the renormalization group method. For ferromagnetic coupling, we always observe the existence of long-range order. For antiferromagnetic coupling, we find a paramagnetic phase for all finite temperatures.
description: 7 pages, 8 figures
Evidence for periodic accretion-ejection in LSI+61303
Creators: name: Massi, M.
name: Chernyakova, M.
name: Kraus, A.
name: Malyshev, D.
name: Jaron, F.
name: Kiehlmann, S.
name: Dzib, S. A.
name: Sharma, R.
name: Migliari, S.
name: Readhead, A. C. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The stellar binary system LS I +61303, composed of a compact object in an eccentric orbit around a B0 Ve star, emits from radio up to gamma-ray energies. The orbital modulation of radio spectral index, X-ray, and GeV gamma-ray data suggests the presence of two peaks. This two-peaked profile is in line with the accretion theory predicting two accretion-ejection events for LS I +61303 along the 26.5 d orbit. However, the existing multiwavelength data are not simultaneous. In this paper, we report the results of a campaign covering radio, X-ray, and gamma-ray observations of the system along one single orbit. Our results confirm the two predicted events along the orbit and in addition show that the positions of radio and gamma-ray peaks are coincident with X-ray dips as expected for radio and gamma-ray emitting ejections depleting the X-ray emitting accretion flow. We discuss future observing strategies for a systematic study of the accretion-ejection physical processes in LS I +61303.
description: 10 pages, 7 figures, MNRAS
Spitzer/IRAC Observations of AGB stars
Creators: name: Marengo, Massimo
name: Reiter, Megan
name: Fazio, Giovanni G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present here the first observation of galactic AGB stars with the InfraRed Array Camera (IRAC) onboard the Spitzer Space Telescope. Our sample consists of 48 AGB stars of different chemical signature, mass loss rate and variability class. For each star we have measured IRAC photometry and colors. Preliminary results shows that IRAC colors are sensitive to spectroscopic features associated to molecules and dust in the AGB wind. Period is only loosely correlated to the brightness of the stars in the IRAC bands. We do find, however, a tight period-color relation for sources classified as semiregular variables. This may be interpreted as the lack of warm dust in the wind of the sources in this class, as opposed to Mira variables that show higher infrared excess in all IRAC bands.
description: 8 pages, to be published in proceedings "IX Torino Workshop on Evolution and Nucleosynthesis in AGB Stars", 22-26 October 2007, Perugia, Italy
Bethe ansatz and inverse scattering transform in a periodic box-ball system
Creators: name: Kuniba, Atsuo
name: Takagi, Taichiro
name: Takenouchi, Akira
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We formulate the inverse scattering method for a periodic box-ball system and solve the initial value problem. It is done by a synthesis of the combinatorial Bethe ansa"tze at q=1 and q=0, which provides the ultradiscrete analogue of quasi-periodic solutions in soliton equations, e.g., action-angle variables, Jacobi varieties, period matrices and so forth. As an application we establish explicit formulas counting the states characterized by conserved quantities and the generic and fundamental period under the commuting family of time evolutions.
description: 43 pages
title: Multicystic Peritoneal Mesothelioma: a rare benign entity
Creators: name: Senra, Carlos
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Abdominal imaging
subject: Abdomen
subject: Peritoneum
subject: CT
subject: MR
subject: Cysts
subject: Clinical Cases

description: Clinical History: A 50-year-old female patient was referred to the surgical department of our institution with perihepatic and perisplenic cystic lesions, incidentally discovered on a routine kidney ultrasound. The patient was asymptomatic and had no significant medical history with the exception of prior hysterectomy and bilateral adnexectomy. No abnormal findings were noticed on physical examination.

description: 50 years, female
title: Ocra :
title: Directrices para la ejecución del examen de la distinción, la homogeneidad y la estabilidad.
titleType: Subtitle
Creators: name: International Union For The Protection Of New Varieties Of Plants,
Publisher: name: International Union for the Protection of New Varieties of Plants,
Year: 0
Subjects: Okra
Group identity.
New Varieties of Plants

description: La finalidad de estas directrices (“directrices de examen”) es elaborar los principios que figuran en la Introducción General (documento TG/1/3) y sus documentos TGP conexos, con objeto de que sirvan de orientación práctica y detallada para el examen armonizado de la distinción, homogeneidad y estabilidad (DHE) y en particular, para identificar los caracteres apropiados para el examen DHE y producir descripciones armonizadas de variedades.
Experimental evaluation of the ulag glulam beam simulation program
Creators: name: Timusk, Paul Christopher
Publisher: name: University of British Columbia
Year: 2009

description: An experimental study on the bending capacity of glued-laminated beams was undertaken to facilitate the verification of the stochastic finite element beam simulation program ULAG (Ultimate Load Analysis of Glulam). For the material data base, 600 tension and stiffness tests were done on two different grades of machine stress rated laminating stock, consisting of 2x6 (38mm x 140mm) spruce and pine lumber. Thirty 16-foot (4.88m) glulam beams of eight 2x6 laminations each and thirty 24-foot (7.31m) glulam beams of twelve 2x6 laminations each were made in a commercial glulam plant and tested in bending to failure on a 200 kip universal testing machine. The mean modulus of elasticity values and ultimate bending loads were compared with analytical predictions. The laminating stock test specimens of 100 16-foot (4.88m) 'B' 100 16-foot 'C' 100 8-foot (2.44m) 'B', 100 8-foot 'C' 100 8-foot (2.44m) finger jointed 'B' and 100 8-foot finger jointed 'C' 2x6 (38mm x 140mm) lumber were E-rated using a Cook Bolinders AGAF machine, and tested in tension parallel to grain to failure on a Metriguard tension testing machine. After verification with the physical test data, ULAG was used to investigate various glulam beam properties such as size effect and the effect of different beam lay-ups.
Multi-orbital-phase and multi-band characterization of exoplanetary atmospheres with reflected light spectra
Creators: name: Damiano, Mario
name: Hu, Renyu
name: Hildebrandt, Sergi R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Direct imaging of widely separated exoplanets from space will obtain their reflected light spectra and measure atmospheric properties. Previous calculations have shown that a change in the orbital phase would cause a spectral signal, but whether this signal may be used to characterize the atmosphere has not been shown. We simulate starshade-enabled observations of the planet 47 Uma b, using the to-date most realistic simulator SISTER to estimate the uncertainties due to residual starlight, solar glint, and exozodiacal light. We then use the Bayesian retrieval algorithm ExoReL$^\Re$ to determine the constraints on the atmospheric properties from observations using a Roman- or HabEx-like telescope, comparing the strategies to observe at multiple orbital phases or in multiple wavelength bands. With a $\sim20\%$ bandwidth in 600 - 800 nm on a Roman-like telescope, the retrieval finds a degenerate scenario with a lower gas abundance and a deeper or absent cloud than the truth. Repeating the observation at a different orbital phase or at a second $20\%$ wavelength band in 800 - 1000 nm, with the same integration time and thus degraded S/N, would effectively eliminate this degenerate solution. Single observation with a HabEx-like telescope would yield high-precision constraints on the gas abundances and cloud properties, without the degenerate scenario. These results are also generally applicable to high-contrast spectroscopy with a coronagraph with a similar wavelength coverage and S/N, and can help design the wavelength bandwidth and the observation plan of exoplanet direct imaging experiments in the future.
description: 11 pages, 4 figures, 2 tables, accepted for publication in AJ
The Earliest Researches on Liquid Crystals
Creators: name: Sparavigna, Amelia Carolina
Publisher: name: Zenodo
Year: 2019
Subjects: Liquid Crystals
Polarized-light Microscopy
Cholesteric Liquid Crystals

description: Here it is proposed a discussion concerning the earliest researches on the liquid crystals. The discussion is based on a book published in 1911, written by Alfred Tutton. In this book, we find described the instrument which was fundamental for observing the mesophases of thermotropic liquid crystals, the “crystallisation microscope”, that Otto Lehmann built for his studies on crystals. It consisted of a polarized-light microscope, equipped by heating and cooling systems for the control of temperature. This experimental set-up allowed Lehmann to study the cholesteryl benzoate, the first material that was discovered by Friedrich Reinitzer as exhibiting a mesophase. In the following years, many other materials were prepared for Lehmann’s studies. In the Tutton’s book, among the chemists who prepared the samples, we can find mentioned Ludwig Gattermann and Daniel Vorländer. We can find also the Vorländer‘s “recipes” to obtain liquid crystalline materials, those which have rod-like molecules.
Nature of the deconfining phase transition in the 2+1-dimensional SU(N) Georgi-Glashow model
Creators: name: Lecheminant, Philippe
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The nature of the deconfining phase transition in the 2+1-dimensional SU(N) Georgi-Glashow model is investigated. Within the dimensional-reduction hypothesis, the properties of the transition are described by a two-dimensional vectorial Coulomb gas models of electric and magnetic charges. The resulting critical properties are governed by a generalized SU(N) sine-Gordon model with self-dual symmetry. We show that this model displays a massless flow to an infrared fixed point which corresponds to the Z$\_N$ parafermions conformal field theory. This result, in turn, supports the conjecture of Kogan, Tekin, and Kovner that the deconfining transition in the 2+1-dimensional SU(N) Georgi-Glashow model belongs to the Z$\_N$ universality class.
description: 12 pages
title: Dynamic laser light scattering technique for nanoparticle size determination in suspensions
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
Creators: name: Ð¡ÑÐ½ Ð¦ÑÑÐ¸
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: Ð¡Ð²ÐµÑ
Ð½Ð°Ð½Ð¾ÑÐ°ÑÑÐ¸ÑÑ
Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼ Ð³ÐµÐ½ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¸Ð½Ð²ÐµÑÑÐ¸Ð¸
nanoparticles
genetic inversion algorithm

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÑÐ°ÑÑÐµ Ð¾ÑÐ½Ð¾Ð²Ð½Ð¾Ðµ Ð²Ð½Ð¸Ð¼Ð°Ð½Ð¸Ðµ ÑÐ´ÐµÐ»ÑÐµÑÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¼ÐµÑÐ¾Ð´Ð° Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ°ÑÑÐµÑÐ½Ð¸Ñ Ð»Ð°Ð·ÐµÑÐ½Ð¾Ð³Ð¾ ÑÐ²ÐµÑÐ° Ð´Ð»Ñ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ ÑÐ°Ð·Ð¼ÐµÑÐ° Ð½Ð°Ð½Ð¾ÑÐ°ÑÑÐ¸Ñ Ð² ÑÑÑÐ¿ÐµÐ½Ð·Ð¸ÑÑ. Ð ÐºÐ°ÑÐµÑÑÐ²Ðµ ÑÐ°ÑÑÐ¸Ñ Ð¾Ð±ÑÐ°Ð·ÑÐ° Ð±ÑÐ»Ð¸ Ð²ÑÐ±ÑÐ°Ð½Ñ ÐºÐ°ÑÐ±Ð¾ÐºÑÐ¸Ð»Ð°ÑÐµÐºÑÐ½ÑÐµ Ð¼Ð¸ÐºÑÐ¾ÑÑÐµÑÑ Ñ ÑÐ°Ð·Ð¼ÐµÑÐ°Ð¼Ð¸ ÑÐ°ÑÑÐ¸Ñ 100 Ð½Ð¼ Ð¸ 300 Ð½Ð¼, ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐµ Ð´Ð°Ð½Ð½ÑÐµ Ð¸Ð·Ð¼ÐµÑÐµÐ½Ñ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð° Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ²ÐµÑÐ¾ÑÐ°ÑÑÐµÑÐ½Ð¸Ñ, Ð° ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð½Ð°Ð½Ð¾ÑÐ°ÑÑÐ¸Ñ ÐºÐ°ÑÐ±Ð¾ÐºÑÐ¸Ð»Ð°ÑÐµÐºÑÐ½ÑÑ Ð¼Ð¸ÐºÑÐ¾ÑÑÐµÑ ÑÐ°Ð·Ð¼ÐµÑÐ¾Ð¼ 100 Ð½Ð¼ Ð¸ 300 Ð½Ð¼ Ð±ÑÐ»Ð¸ Ð¸Ð·Ð¼ÐµÑÐµÐ½Ñ. Ð Ð°ÑÑÑÐ¸ÑÑÐ²Ð°ÐµÑÑÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½Ð¾Ð¹ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ñ Ð¸ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð° Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¸ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÑ Ð´Ð°Ð½Ð½ÑÑ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÐµÐ½Ð½Ð¾. ÐÐ°ÐºÐ¾Ð½ÐµÑ, Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼ Ð³ÐµÐ½ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¸Ð½Ð²ÐµÑÑÐ¸Ð¸ Ñ ÑÐ¸Ð»ÑÐ½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÐ¾Ð¹ Ð¾Ñ Ð¿Ð¾Ð¼ÐµÑ Ð¸ Ð²ÑÑÐ¾ÐºÐ¾Ð¹ ÑÐºÐ¾ÑÐ¾ÑÑÑÑ Ð²ÑÑÐ¸ÑÐ»ÐµÐ½Ð¸Ð¹, Ð¸ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ð° Ð¸ ÑÐµÐ¾ÑÐ¸Ð¸ ÑÑÐ¾Ð³Ð¾ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð° ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÑÐµÑÑÑ Ð²ÑÑÐ¸ÑÐ»Ð¸ÑÐµÐ»ÑÐ½ÑÐ¹ Ð¿ÑÐ¾ÑÐµÑÑ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð° Ð³ÐµÐ½ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¸Ð½Ð²ÐµÑÑÐ¸Ð¸, ÑÑÐ¾Ð±Ñ Ð¾Ð±ÐµÑÐ¿ÐµÑÐ¸ÑÑ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÑÑ Ð¾ÑÐ½Ð¾Ð²Ñ Ð´Ð»Ñ ÑÐ»ÑÑÑÐµÐ½Ð¸Ñ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð°.
description: This paper focuses on the use of dynamic laser light scattering technique to determine the size of nanoparticles in suspensions. Carboxy-latex microspheres with particle sizes of 100 nm and 300 nm were selected as sample particles, and the experimental data were measured using a dynamic light scattering device, and the results of nanoparticle size distribution of 100 nm and 300 nm carboxy-latex microspheres were calculated using the designed program and algorithm to process the experimental data, respectively. Finally, a genetic inversion algorithm with strong anti-interference and fast computation speed is introduced, and based on the principle and theory of this algorithm, the computational process of the genetic inversion algorithm is simulated theoretically to provide a theoretical basis for improving the algorithm.
Letter from Colin C. MacRae to James Goldie, June 3, 1910
Creators: name: MacRae, Colin C.
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to James Goldie from Colin C. MacRae, manager of the Royal Bank of Canada in Vernon, B.C., dated June 3, 1910, notifying that the sum of $24.75 has been deposited into his Savings account.