cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Closed-Form Analysis of the $α$-Beaulieu-Xie Shadowed Fading Channel
Creators: name: Gvozdarev, Aleksey S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 94A14, 94A40

description: The presented research proposes the $α$-modification of the Beaulieu-Xie shadowed fading channel for wireless communications. For the assumed model the closed-form analytical description of the basic statistical characteristics is carried out (i.e., probability density function, cumulative distribution function, and their asymptotics). The derived statistical description is exemplified on the problems of the average bit error rate and ergodic capacity calculation, for which the exact analytic and high signal-to-noise ratio asymptotic expressions are derived. The performed extensive numerical analysis demonstrates high correspondence with the analytical work and helps to study the dependence of the channel nonlinearity effects on the bit error probability.
Mesolithisch – neolithisch: Zur Entwicklung von Hütten und Häusern im südlichen Skandinavien und nördlichen Mitteleuropa
Creators: name: Müller, Johannes
Publisher: name: Offa
Year: 2013

description: Ist die Entwicklung neolithischer Häuser in Nordmitteleuropa und Südskandinavien etwas „Neues“ oder existiert bereits eine Entwicklung mesolithischer Wohnstrukturen, aus der sich die neolithische Architektur ableiten lasst? Um diese Frage zu beantworten, werden 91 mesolithische und 96 neolithische Wohnstrukturen miteinander verglichen. Anhand der Parameter Grundfläche, Bauweise und Größenklassen wird deutlich, dass die neolithischen Wohnstrukturen als Fortführung mesolithischer Entwicklungstendenzen aufgefasst werden können.
description: Offa, 69/70 (2012/2013)
title: Respiratory dynamic MRI for determining aortic invasion of thoracic neoplasms
Creators: name: Hong, Yoo Jin
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Diagnostic procedure
subject: MR
subject: CT
subject: Lung
subject: Arteries / Aorta
subject: Cancer

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: To assess whether respiratory dynamic magnetic resonance imaging (RD MRI) improves the accuracy of conventional MRI or computed tomography (CT) in determining aortic invasion of mediastinal tumors and lung...
Review of Recent Calculations of the Hadronic Vacuum Polarisation Contribution
Creators: name: Zhang, Zhiqing
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Recent calculations of the hadronic vacuum polarisation contribution are reviewed. The focus is put on the leading-order contribution to the muon magnetic anomaly involving $e^+e^-$ annihilation cross section data as input to a dispersion relation approach. Alternative calculation including tau data is also discussed. The $τ$ data are corrected for various isospin-breaking sources which are explicitly shown source by source.
description: 8 pages, 9 figures, 3 tables, invited talk given at the FCCP 2015 workshop
title: Doppler evaluation of recurrence after varicose vein surgery
Creators: name: Sousa Pereira, José António
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Vascular
subject: Veins / Vena cava
subject: Ultrasound-Colour Doppler
subject: Ultrasound-Spectral Doppler
subject: Diagnostic procedure
subject: Haemodynamics / Flow dynamics
subject: Varices

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: To describe the methodology and terminology to be used for Doppler ultrasound assessment of incompetent superficial and perforator after treatment in the lower limb by ultrasound imaging. To report the most frequent patterns of recurrent varices...
title: Lung Perfusion Defects on Dual-Energy Computed Tomography (DECT): Review of Morphology and Differential Diagnosis.
Creators: name: Odink, Arlette
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Embolism / Thrombosis
subject: Diagnostic procedure
subject: CT-Angiography
subject: CT
subject: Thorax
subject: Cardiovascular system

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: To present insight on the basic principles of DECT and provide a pictorial review of the range of morphology of lung perfusion defects with diagnostic clues differentiating acute pulmonary embolism (APE) from other underlying...
Mit gesträubtem Gefieder – Gedanken zu einer Gruppe hallstattzeitlicher Vogelrasseln
Creators: name: Nadler, Martin
Publisher: name: Offa
Year: 2013

description: Ausgehend vom Inventar eines Kindergrabes, zu dem ein größeres Set von Miniaturgefäßen und Klappergerät gehört, wird eine kleine Gruppe hallstattzeitlicher Vogelfiguren im süddeutschen Raum behandelt, die auffällige gelochte Leisten am Hals aufweisen. Anhand dieses Merkmals wird erwogen, dass es sich bei diesen speziellen Darstellungen um Hähne handeln konnte, die in Imponierhaltung ihr Halsgefieder sträuben. Es wäre eine der frühesten Darstellungen im Raum nördlich der Alpen zu einer Zeit, als das Huhn erstmals als Haustier im Fundmaterial nachgewiesen werden kann. Auch mit solchen auf den ersten Blick unscheinbaren Funden lassen sich möglicherweise weitreichende Kontakte, vielleicht sogar die Übernahme bestimmter mediterraner Lebensweisen aufzeigen.
description: Offa, 69/70 (2012/2013)
Ihrer Hühner waren drei und ein stolzer Hahn dabei: Überlegungen zur Beigabe von Hühnern im awarischen Gräberfeld an der Wiener Csokorgasse
Creators: name: Kroll, Henriette
Publisher: name: Offa
Year: 2013

description: In der Archäozoologie werden Beigaben heute typischer Fleischtiere zumeist a priori als Speisebeigaben für das Jenseits gewertet. Etwaige möglicherweise zusätzliche Symbolgehalte sowie die Bedeutung auch unscheinbar wirkender Arten zu Repräsentationszwecken im Bestattungsritual, werden selten diskutiert. Im Falle des Huhnes, das stets eine sehr vielschichtige Beziehung mit dem Menschen verband, greift die Beschränkung auf eine reine Speisefunktion möglicherweise zu kurz. Dem Beitrag liegen die zahlreichen Hühnerknochenfunde aus dem awarischen Gräberfeld an der Wiener Csokorgasse zugrunde. Anhand ihrer Verteilung auf die Gräber von bedeutenden und einfachen Männern sowie von Frauen und Kindern sollen Hinweise auf etwaige Motivationen ihrer Beigabe gewonnen werden. Zunächst werden der kulturhistorische Hintergrund und die vielfältigen mit Hühnern assoziierten Bedeutungen kurz dargelegt. Es folgt eine Beschreibung des Hühnerknochenmaterials und seiner Verteilung auf die genannten sozialen Gruppen. Im Anschluss daran wird die Anwendbarkeit von fünf für frühmittelalterliche Grabbeigaben erarbeiteten Deutungsvorschlägen auf das Material von der Wiener Csokorgasse diskutiert. Dabei kommt insbesondere der Rolle des Hahnes große Bedeutung zu, da dieser nicht nur eine klare Bindung an Männergräber zeigt, sondern im Laufe der Gräberfeldbelegung scheinbar auch einen Bedeutungswandel vollzieht.
description: Offa, 69/70 (2012/2013)
title: Image Findings of Atypical Teratoid/Rhabdoid Tumors in Adult
Creators: name: Kanoto, Masafumi
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Neuroradiology brain
subject: Neuroradiology peripheral nerve
subject: Neuroradiology spine
subject: CT
subject: MR
subject: Imaging sequences
subject: Image verification

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: Our purpose is to clarify the image findings of adult AT/RTs. The subjects are 4 patients of adult AT/RT (60, 21, 31, 25 y.o., Male: Female=1: 1). CT, MRI and Angiography were performed for each case and the image findings are retrospectively...
Star Cluster Properties in Two LEGUS Galaxies Computed with Stochastic Stellar Population Synthesis Models
Creators: name: Krumholz, Mark R.
name: Adamo, Angela
name: Fumagalli, Michele
name: Wofford, Aida
name: Calzetti, Daniela
name: Lee, Janice C.
name: Whitmore, Bradley C.
name: Bright, Stacey N.
name: Grasha, Kathryn
name: Gouliermis, Dimitrios A.
name: Kim, Hwihyun
name: Nair, Preethi
name: Ryon, Jenna E.
name: Smith, Linda J.
name: Thilker, David
name: Ubeda, Leonardo
name: Zackrisson, Erik
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We investigate a novel Bayesian analysis method, based on the Stochastically Lighting Up Galaxies (slug) code, to derive the masses, ages, and extinctions of star clusters from integrated light photometry. Unlike many analysis methods, slug correctly accounts for incomplete IMF sampling, and returns full posterior probability distributions rather than simply probability maxima. We apply our technique to 621 visually-confirmed clusters in two nearby galaxies, NGC 628 and NGC 7793, that are part of the Legacy Extragalactic UV Survey (LEGUS). LEGUS provides Hubble Space Telescope photometry in the NUV, U, B, V, and I bands. We analyze the sensitivity of the derived cluster properties to choices of prior probability distribution, evolutionary tracks, IMF, metallicity, treatment of nebular emission, and extinction curve. We find that slug's results for individual clusters are insensitive to most of these choices, but that the posterior probability distributions we derive are often quite broad, and sometimes multi-peaked and quite sensitive to the choice of priors. In contrast, the properties of the cluster population as a whole are relatively robust against all of these choices. We also compare our results from slug to those derived with a conventional non-stochastic fitting code, Yggdrasil. We show that slug's stochastic models are generally a better fit to the observations than the deterministic ones used by Yggdrasil. However, the overall properties of the cluster populations recovered by both codes are qualitatively similar.
description: Accepted to ApJ; 25 pages, 17 figures, 3 tables; machine-readable versions of the tables are available at https://sites.google.com/a/ucsc.edu/krumholz/publications
title: Different mammographic features associated with aggressive phenotype of breast cancer patients
Creators: name: Radenkovic, Sandra
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Cancer
subject: Diagnostic procedure
subject: Mammography
subject: Breast

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The results of studies relating breast cancer prognosis provide evidence that breast cancers can be separated into few subgroups of tumors with different underlying biologic characteristics. We hypothesized that comparison of mammographic features...
Safe asynchronous mixed-choice for timed interactions
Creators: name: Pears, Jonah
name: Bocchi, Laura
name: King, Andy
Publisher: name: arXiv
Year: 2023
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Mixed-choice has long been barred from models of asynchronous communication since it compromises key properties of communicating finite-state machines. Session types inherit this restriction, which precludes them from fully modelling timeouts -- a key programming feature to handle failures. To address this deficiency, we present (binary) TimeOut Asynchronous Session Types ({TOAST}) as an extension to (binary) asynchronous timed session types to permit mixed-choice. {TOAST} deploy timing constraints to regulate the use of mixed-choice so as to preserve communication safety. We provide a new behavioural semantics for {TOAST} which guarantees progress in the presence of mixed-choice. Building upon {TOAST}, we provide a calculus featuring process timers which is capable of modelling timeouts using a $\mathtt{receive\text{-}after}$ pattern, much like Erlang, and informally illustrate the correspondence with TOAST specifications.
description: 18 pages, 8 figures, accepted at COORDINATION 2023
Der Silberkessel von Gundestrup – Ein Zeugnis keltischer Religion?
Creators: name: Peter-Röcher, Heidi
Publisher: name: Offa
Year: 2013

description: Der angeblich von Kelten oder von Thrakern in keltischem Auftrag hergestellte Silberkessel von Gundestrup ist bis heute ein Unikat und ein Rätsel geblieben. 1891 in Dänemark entdeckt und schon 1892 erstmals publiziert, wurde er seitdem in zahlreichen Arbeiten behandelt und in unzähligen Publikationen als Zeugnis keltischer Religion genannt. Neuere Untersuchungen erwecken jedoch Zweifel an der Gleichzeitigkeit aller Bestandteile des Kessels. Darüber hinaus konnte die Herstellungstechnik analysiert und als unprofessionell eingestuft werden. Ein Zusammenhang mit den Kelten erscheint aus verschiedenen Gründen fragwürdig. Hier wird die These vertreten, dass der Kessel im Auftrag germanischer Bastarnen in einer thrakischen Werkstatt aus Silberplatten gefertigt wurde, die ursprünglich gar nicht für einen Kessel bestimmt waren. Es handelt sich also tatsächlich um ein Unikat, das aus einer einmaligen und zufälligen historischen Konstellation hervorgegangen ist.
description: Offa, 69/70 (2012/2013)
title: Morphological study of the human hyoid bone with Three-dimensional CT images -Age-related changes-
Creators: name: Ito, Kyoichi
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Image verification
subject: Computer Applications-3D
subject: CT
subject: Head and neck
subject: Anatomy

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The morphological study of the human hyoid bone has been reported by Kamijo[1], Haga[2], and Parson[3]. However, they are comparative anthropological researches conducted early in 1900, whereas the metrological research has been little reported...
title: Computer-Aided Detection (CAD) as Concurrent versus Second Reader for Lung Nodules on CT: Evaluation of Reading Time and Observer Performance in a Japanese Multicenter Study
Creators: name: Matsumoto, Sumiaki
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Lung
subject: CT
subject: CAD
subject: Cancer

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Multiple studies have shown the efficacy of CAD for detecting lung nodules on CT, where CAD has been used as second reader. The use of CAD as second reader consists of unaided image interpretation and subsequent assessment of the outputs of CAD...
Foxtail Millet (Setaria italica [L ] P Beauv ) in Western Central Europe
Creators: name: Bakels, Corrie
Publisher: name: Offa
Year: 2013

description: A burnt-down granary in an Early Iron Age settlement excavated in Sittard-Geleen, the Netherlands, gave occasion to a review of foxtail millet occurrences in prehistoric western Central Europe. It turned out that this millet is found from the Late Bronze Age onwards and had its heyday during the Iron Age. The western Central European crop plant may have no connection at all with the cultivar known from China. Why foxtail millet was taken up as a crop is not clear. The climatic change which set in about 800 BC may have played a role, but possibly not a direct one. Foxtail millet may have been sown as an emergency crop when other crops failed.
description: Offa, 69/70 (2012/2013)
Falls in the Obstetric Population – a scoping review protocol
Creators: name: Risso, Sandra
name: Marques-Vieira, Cristina
name: Soares, Tânia
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Maternal, Child Health and Neonatal Nursing
subject: Nursing
subject: FOS: Health sciences
subject: Nursing Midwifery

description: The aim of this review is to map the fall phenomenon in the obstetric population (pregnant women, parturient and puerperae), in its prevalence, causes and consequences.
title: MR imaging of persistence falcine sinus: incidence, morphology and clinical characteristics
Creators: name: Yang, Zhiyun
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Anatomy
subject: Neuroradiology brain
subject: Vascular
subject: MR
subject: Normal variants
subject: Congenital

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The falcine sinus is an embryonic vessel that normally closed after birth. Most variation occurs when the falcine sinus continue to exist after birth or open again after normally closed (Fig 1)[1-4]. The aim of this study is to evaluate the MRI...
Proton induced reactions on 114Sn and 120Sn targets at energies up to 18 MeV
Creators: name: Hovhannisyan, G. H.
name: Bakhshiyan, T. M.
name: Martirosyan, G. V.
name: Dallakyan, R. K.
name: Balabekyan, A. R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We measure cross sections of proton-induced reactions on tin up to energies of 18 MeV using the stacked-foil activation technique, and report first experimental values for 114Sn(p,α)111In, {^{120}}Sn(p,α)117gIn, and 114Sn(p,x)113Sn reactions. Measured cross sections have been compared to existing experimental values and numerical calculations based on Talys1.95. Our data are in good agreement with all previous experiments, and also with Talys1.95 results except for 120Sn(p,α)117m,gIn reactions where the numerical calculations are shifted to higher energies. We also measure isomeric cross section ratios for 117m,gIn and 120m,gSb pairs as functions of the incident proton energy.
description: 21 pages, 9 figures, 3 tables
The Lyman alpha reference sample. VII. Spatially resolved H$α$ kinematics
Creators: name: Herenz, Edmund Christian
name: Gruyters, Pieter
name: Orlitova, Ivana
name: Hayes, Matthew
name: Östlin, Göran
name: Cannon, John M.
name: Roth, Martin M.
name: Bik, Arjan
name: Pardy, Stephen
name: Otí-Floranes, Héctor
name: Mas-Hesse, J. Miguel
name: Adamo, Angela
name: Atek, Hakim
name: Duval, Florent
name: Guaita, Lucia
name: Kunth, Daniel
name: Laursen, Peter
name: Melinder, Jens
name: Puschnig, Johannes
name: Rivera-Thorsen, Thøger E.
name: Schaerer, Daniel
name: Verhamme, Anne
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present integral field spectroscopic observations with the Potsdam Multi Aperture Spectrophotometer of all 14 galaxies in the $z\sim 0.1$ Lyman Alpha Reference Sample (LARS). We produce 2D line of sight velocity maps and velocity dispersion maps from the Balmer $α$ (H$α$) emission in our data cubes. These maps trace the spectral and spatial properties of the LARS galaxies' intrinsic Ly$α$ radiation field. We show our kinematic maps spatially registered onto the Hubble Space Telescope H$α$ and Lyman $α$ (Ly$α$) images. Only for individual galaxies a causal connection between spatially resolved H$α$ kinematics and Ly$α$ photometry can be conjectured. However, no general trend can be established for the whole sample. Furthermore, we compute non-parametric global kinematical statistics -- intrinsic velocity dispersion $σ_0$, shearing velocity $v_\mathrm{shear}$, and the $v_\mathrm{shear}/σ_0$ ratio -- from our kinematic maps. In general LARS galaxies are characterised by high intrinsic velocity dispersions (54\,km\,s$^{-1}$ median) and low shearing velocities (65\,km\,s$^{-1}$ median). $v_\mathrm{shear}/σ_0$ values range from 0.5 to 3.2 with an average of 1.5. Noteworthy, five galaxies of the sample are dispersion dominated systems with $v_\mathrm{shear}/σ_0 <1$ and are thus kinematically similar to turbulent star forming galaxies seen at high redshift. When linking our kinematical statistics to the global LARS Ly$α$ properties, we find that dispersion dominated systems show higher Ly$α$ equivalent widths and higher Ly$α$ escape fractions than systems with $v_\mathrm{shear}/σ_0 > 1$. Our result indicates that turbulence in actively star-forming systems is causally connected to interstellar medium conditions that favour an escape of Ly$α$ radiation.
description: 26 pages, 15 figures, accepted for publication in A&A
TOWARDS A FUNCTION-BASED RESTORATION PRIORITIZATION SYSTEM
Creators: name: Lovette, John
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: This thesis explores the creation and assessment of a novel catchment-scale stream restoration prioritization tool in North Carolina. This tool aims to shift restoration prioritization towards a function-based assessment of catchment condition, whereas many traditional prioritization tools rely on simple geospatial data overlays and expert opinion in weighting. While the tool does not provide specific project design or siting information, the data integrated in the baseline and uplift assessments are firmly grounded in vetted, widely distributed data based models. In using these data, the tools and methods presented here are not only applicable in North Carolina but also provide a framework for a function-based restoration prioritization tool at a much larger scale. The assessment of the tool in four diverse river basins across North Carolina provides both a proof of concept on the tool’s implementation and highlights how the state’s physical geography and interaction with human activities variably influences hydrologic, water quality, and aquatic habitat conditions.
Bemerkungen zu Fischfunden aus einer Siedlungsgrube der späten Bronze- und der frühen Eisenzeit bei Wennungen, Burgenlandkreis, Sachsen-Anhalt
Creators: name: Heinrich, Dirk
Publisher: name: Offa
Year: 2013

description: Eine Siedlungsgrube der ausgehenden Bronzezeit und der frühen Eisenzeit erbrachte zahlreiche Fischknochen und einige 10 000 Schuppen. 477 Knochen konnten bestimmt werden. Sie gehören zu neun Arten oder Artengruppen. 56,4 % der Funde stammen von Karpfenfischen (Cyprinidae; n = 269). 71 Knochen von diesen konnten bis zur Art determiniert werden; vertreten sind Schleie (Tinca tinca; n = 54), Plötze (Rutilus rutilus; n = 13), Brachsen (Abramis brama; n = 2) und Aland (Leuciscus idus; n = 2). 40,5 % der Funde entfallen auf den Hecht (Esox lucius; n = 193). Die wenigen übrigen Reste sind von Flussbarsch (Perca fluviatilis; 1,9 %, n = 9), Kaulbarsch (Gymnocephalus cernuus; 1,0 %, n = 5) und Flussaal (Anguilla anguilla; 0,2 %, n = 1). Alle Fische dürften in der nahen Unstrut gefangen worden sein. Die Gesamtheit ihrer artgemäßen Lebensansprüche an ihr Wohngewässer weist auf – wohl verhältnismäßig eutrophe – Neben- oder Altarme, in denen die Fließgeschwindigkeit herabgesetzt ist und demgemäß u. a. Weichböden und reichlich Vegetation vorherrschen. Es bleibt offen, ob nur in solchen Flussbereichen gefischt wurde oder ob die Nutzer der Grube ausschließlich Zugang zu Stillwasserbereichen hattenbzw. lediglich von Fischern versorgt wurden, die nur in solchen Flussabschnitten ihrer Tätigkeit nachgingen. Die Fischknochen sind als Nahrungsreste einzustufen. Die artliche Zusammensetzung der Funde und die speziesbezogene relative Häufigkeit geben Hinweise auf die wirtschaftliche Bedeutung der Arten. Die wichtigsten Speisefische waren der Hecht, von dem große und auch verhältnismäßig kleine Exemplare auf den Tisch kamen, und die Schleie, deren Funde vor allem auf große Individuen deuten.
description: Offa, 69/70 (2012/2013)
Generalized DGLAP evolution
Creators: name: Strozik-Kotlorz, D.
name: Mikhailov, S. V.
name: Teryaev, O. V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present progress in development of the truncated Mellin moments approach (TMMA). We show our recent results on the generalization of DGLAP evolution equations and discuss some their applications in spin physics.
description: 4 pages, 4 figures, Contribution to the proceedings of the XVI WORKSHOP ON HIGH ENERGY SPIN PHYSICS DSPIN-15, Dubna, Russia, September 8 - 12, 2015
The potential for stem cell derived extracellular vesicles to promote fracture healing: A systematic review
Creators: name: Donaldson, Callum
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: bone regeneration
subject: extracellular vesicle
subject: fracture
subject: stem cell

description: A scoping review, using a systematic search strategy, to identify the current state of research, and future potential, in using stem cell derived extracellular vesicles to promote fracture healing.
title: Carcinoid tumors of the thorax: everything the radiologist needs to know.
Creators: name: Vidal Trueba, Héctor
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Thorax
subject: CT
subject: Digital radiography
subject: Diagnostic procedure
subject: Cancer

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: Pathophysiology of carcinoid tumors of the chest. Clinical evaluation of bronchial carcinoid tumors. Typical radiological findings in carcinoid tumors. Radiological findings secondary to airway obstruction by endobronchial carcinoid tumors. Forms of...
title: A systematic review and meta-analysis of the prognostic value of normal stress cardiovascular magnetic resonance imaging
Creators: name: Iwata, Kunihiro
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Cardiac
subject: MR
subject: Technology assessment
subject: Outcomes
subject: Ischaemia / Infarction

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: In clinical practice, myocardial perfusion and cardiac wall motion are usually assessed with low-invasive imaging modalities such as single-photon emission computed tomography (SPECT) or echocardiography. Recent advances in cardiac magnetic...
Von Pflaumensteinen und Ackerbohnen: Wie Pflanzenreste aus einer neuzeitlichen Feuergrubenreihe in Hevesen, Lkr Northeim, scheinbare räumliche Bezüge von archäologischen Befunden außer Kraft setzen
Creators: name: Kirleis, Wiebke
Publisher: name: Offa
Year: 2013

description: Feuergrubenreihen oder „pit alignments“ als vormals die Landschaft gliedernde Strukturen wurden nicht zuletzt durch intensive Prospektion seitens der Luftbildarchäologie neu entdeckt. Zumeist handelt es sich um einfache oder mehrfach parallele bis zu mehrere Kilometer lange Grubenreihen, die einzig vom Feuer gezeichnete Steine und gelegentlich Holzkohle enthalten. Andere archäologische Funde sind rar. Überwiegend werden die Feuergrubenreihen in den Übergang der Bronze- zur Eisenzeit datiert. Eine Deutung dieser Anlagen orientiert sich aufgrund der mageren Fundlage zumeist an benachbart gelegenen Befunden und Bodenstrukturen. Archäobotanische Untersuchungen konnten nun zeigen, dass eine auf ein Urnengräberfeld ausgerichtete Feuergrubenreihe bei Hevensen, Lkr. Northeim, Niedersachsen, keineswegs in einem rituellen Kontext zu dem kaiserzeitlichen Bestattungsplatz steht. Schon die Funde von verkohlten Ackerbohnen und Pflaumensteinen aus den Feuergruben deuten auf eine wenigstens mittelalterliche Zeitstellung der Anlage. Radiokarbondatierungen versetzen die Anlage der Feuergrubenreihe nun sogar in das 17.–20. Jh. Dies zeigt, dass bei der Befundinterpretation große Vorsicht angemessen ist und scheinbar offenkundige räumliche Bezüge sich nicht notwendig bestätigen müssen.
description: Offa, 69/70 (2012/2013)
Haferbrei mit Wildkornmüsli: Verkohlte Pflanzenfunde aus einer eisenzeitlichen Geestrandsiedlung in Agathenburg, Landkreis Stade
Creators: name: Klooß, Stefanie
Publisher: name: Offa
Year: 2013

description: Anhand der Untersuchung verkohlter Pflanzenreste aus einer Siedlung der vorrömischen Eisenzeit im östlichen Elbe-Weser-Dreieck werden Aussagen zum Kulturpflanzenanbau und zur Wildpflanzennutzung abgeleitet. Hauptsächlich wurden Gerste (Hordeum vulgare) und Saathafer (Avena sativa) angebaut, geringere Bedeutung kommt Emmer (Triticum dicoccum), Saatweizen (Triticum aestivum s.l./durum/turgidum) und Rispenhirse (Panicum miliaceum) zu. Es fällt auf, dass die Nacktgerste noch einen verhältnismäßig großen Anteil gegenüber der bespelzten Form der Gerste einnimmt. Der Nachweis des Saathaferanbaus für die vorrömische Eisenzeit gehört zu den frühesten in der Norddeutschen Tiefebene. Der Anbau von Lein (Linum usitatissimum) und Leindotter (Camelina sativa) ist ebenfalls belegt. Bei den wenigen Roggenfunden (Secale cereale) handelt es sich wahrscheinlich noch um ein Unkraut. Die Ackerböden wiesen während der vorrömischen Eisenzeit eine gute Nährstoffversorgung auf, aber auch Versauerungsanzeiger kommen schon vor. Wahrscheinlich wurden Gerste, Emmer und Saatweizen, genauso wie Hafer und Hirse, als Sommergetreide angebaut. Ob eine bodennahe oder bodenferne Erntemethode angewendet wurde, ist nicht eindeutig zu klären. Die verkohlten Diasporen der Wildpflanzen nehmen insgesamt zwei Drittel der Pflanzenfunde ein. Diese hohe Anzahl spricht für die Anreicherung von Unkräutern in Abfällen von der Getreidereinigung oder für eine Nutzung der Früchte der Wildkräuter für die menschliche Ernährung. Für die Arten Ackerspörgel (Spergula arvensis), Hühnerhirse (Echinochloa crus galli), Weißer Gänsefuß (Chenopodium album) und Knötericharten (Polygonum lapathifolium/persicaria) ist während der vorrömischen Eisenzeit ein Gebrauch als Nahrungspflanze sehr wahrscheinlich.
description: Offa, 69/70 (2012/2013)
Evaluation of Channel Assignment Performance Prediction Techniques in Random Wireless Mesh Networks
Creators: name: Reddy, M Pavan Kumar
name: Kala, Srikant Manas
name: Tamma, Bheemarjuna Reddy
Publisher: name: arXiv
Year: 2015
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Performance of wireless mesh networks (WMNs) in terms of network capacity, end-to-end latency, and network resilience depends upon the prevalent levels of interference. Thus, interference alleviation is a fundamental design concern in multi-radio multi-channel (MRMC) WMNs, and is achieved through a judicious channel assignment (CA) to the radios in a WMN. In our earlier works we have tried to address the problem of estimating the intensity of interference in a wireless network and predicting the performance of CA schemes based on the measure of the interference estimate. We have proposed reliable CA performance prediction approaches which have proven effective in grid WMNs. In this work, we further assess the reliability of these CA performance prediction techniques in a large MRMC WMN which comprises of randomly placed mesh routers. We perform exhaustive simulations on an ns-3 802.11n environment. We obtain conclusive results to demonstrate the efficacy of proposed schemes in random WMNs as well.
description: Accepted in 2015 International Conference on Computing and Network Communications (CoCoNet'15) (IEEE)
Information Leaflet and Communication to experts
Creators: name: Chakraborty, Stuti
name: Chockalingam, Manigandan
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Orthotics and Prosthetics
subject: Physiotherapy
subject: Occupational Therapy
subject: Public Health
subject: Medicine and Health Sciences
subject: Rehabilitation and Therapy
subject: Health and Medical Administration
subject: Physical Therapy

description: This communication consists of the information/ instructions leaflet and invitation which was sent out to the expert group.
A system of inference based on proof search: an extended abstract
Creators: name: Miller, Dale
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Gentzen designed his natural deduction proof system to ``come as close as possible to actual reasoning.'' Indeed, natural deduction proofs closely resemble the static structure of logical reasoning in mathematical arguments. However, different features of inference are compelling to capture when one wants to support the process of searching for proofs. PSF (Proof Search Framework) attempts to capture these features naturally and directly. The design and metatheory of PSF are presented, and its ability to specify a range of proof systems for classical, intuitionistic, and linear logic is illustrated.
Das Nordseebecken und der Wattenmeerraum als Forschungsgebiet: Methodische Überlegungen, Strategien und aktuelle Forschungsprojekte
Creators: name: Jöns, Hauke
name: Karle, Martina
name: Kleingärtner, Sunhild
Publisher: name: Offa
Year: 2013

description: Das Nordseebecken und das Gebiet des heutigen Wattenmeeres waren bis zu ihrer sukzessiven Überflutung aufgrund des holozänen Meeresspiegelanstiegs besiedelte Lebensräume. Die Spuren der Besiedlung befinden sich heute in Abhängigkeit von der Tide regelmäßig unter Wasser und sind häufig von Sedimenten überlagert. Mit der Erfassung und Untersuchung der im Bereich des niedersächsischen Wattenmeeres gelegenen Fundstellen beschäftigt sich gegenwärtig ein Forschungsprojekt, für das eine spezielle, an diese naturräumlichen Verhältnisse angepasste Methodik entwickelt wurde.
description: Offa, 69/70 (2012/2013)
Pollen-, Holzkohle- und Geländeanalysen aus dem schleswig-holsteinischen Riesewohld, Kreis Dithmarschen
Creators: name: Arnold, Volker
name: Dörfler, Walter
Publisher: name: Offa
Year: 2013

description: Archäologische Begehungen und Sondagen im Bereich des Riesewohlds in Schleswig-Holstein haben ein facettenreiches Bild der Besiedlung und Bewirtschaftung ergeben. Einzelfunde aus dem Meso- und Neolithikum belegen die Anwesenheit von Menschen, auch wenn keine Siedlungen zu lokalisieren sind. Seit der Bronzezeit bezeugen Gräber und Streufunde die Besiedlung des Gebietes. Eindeutige Belege für eine Besiedlung sind durch einen eisenzeitlichen Ringwall sowie durch Flursysteme gegeben, die bei der Auswertung von Laserscandaten entdeckt wurden. Nach ihrer Morphologie datieren diese Flursysteme ebenfalls in die Eisenzeit, aber auch mittelalterliche und neuzeitliche Wölbackersysteme sind belegt. Darüber hinaus weisen Flurnamen auf eine historische Nutzung hin. Ein Vergleich des archäologischen Berichtes mit einem Pollenprofil aus einem Quellmoor im nördlichen Bereich des Riesewohlds vervollständigt das Bild. Gemäß des Alters Tiefen-Modells beginnt das Torfwachstum vor ca. 4000 Jahren. Zu Beginn dominieren Linde, Eiche, Ulme, Ahorn, Hasel, Birke und Kiefer das Waldbild. Siedlungszeiger belegen Eingriffe in den Wald mindestens seit der späten Bronzezeit. Maximalwerte werden zur Zeit der Errichtung der eisenzeitlichen Befestigung erreicht. Im Verlauf der Entwicklung verändert sich die Waldzusammensetzung zugunsten von Buche und Hainbuche und zuungunsten von Hasel, Linde und Ulme. Trotz dieser Veränderungen lassen sich die genannten Gattungen bis in die Gegenwart nachweisen, was für ein Überdauern in dem Gebiet des Riesewohlds spricht. Der Wald mutet naturnah und ursprünglich an, ist jedoch im Verlauf der Vorgeschichte vielfältig genutzt und umgeformt worden, nicht zuletzt auch für den Ackerbau.
description: Offa, 69/70 (2012/2013)
title: Endovascular management of symptomatic, vulnerable,hyperintense on post-contrast T1-weighted MR sequencescarotid plaques: a 1-year single center experience
Creators: name: Chiaravalloti, Antonio
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Interventional vascular
subject: Neuroradiology brain
subject: Vascular
subject: CT-Angiography
subject: MR-Angiography
subject: Fluoroscopy
subject: Stents
subject: Angioplasty
subject: Catheters
subject: Acute
subject: Embolism / Thrombosis
subject: Arteriosclerosis

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Ischemic stroke is responsible for 10% of all deaths and is the second cause of mortality worldwide; however, stroke is the leading cause of mortality in China and Japan (1).Carotid artery stenosis represents a major risk factor for stroke and...
Group Frames with Few Distinct Inner Products and Low Coherence
Creators: name: Thill, Matthew
name: Hassibi, Babak
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Frame theory has been a popular subject in the design of structured signals and codes in recent years, with applications ranging from the design of measurement matrices in compressive sensing, to spherical codes for data compression and data transmission, to spacetime codes for MIMO communications, and to measurement operators in quantum sensing. High-performance codes usually arise from designing frames whose elements have mutually low coherence. Building off the original "group frame" design of Slepian which has since been elaborated in the works of Vale and Waldron, we present several new frame constructions based on cyclic and generalized dihedral groups. Slepian's original construction was based on the premise that group structure allows one to reduce the number of distinct inner pairwise inner products in a frame with $n$ elements from $\frac{n(n-1)}{2}$ to $n-1$. All of our constructions further utilize the group structure to produce tight frames with even fewer distinct inner product values between the frame elements. When $n$ is prime, for example, we use cyclic groups to construct $m$-dimensional frame vectors with at most $\frac{n-1}{m}$ distinct inner products. We use this behavior to bound the coherence of our frames via arguments based on the frame potential, and derive even tighter bounds from combinatorial and algebraic arguments using the group structure alone. In certain cases, we recover well-known Welch bound achieving frames. In cases where the Welch bound has not been achieved, and is not known to be achievable, we obtain frames with close to Welch bound performance.
The Concept of Toska in Chekhov's Short Stories
Creators: name: Jones, Jason
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: This thesis examines Anton Chekhov's literary conception of toska through close reading of two short stories entitled, "Misery" (1886) and "The Student" (1894). "Misery" elucidates the complex nature of toska and its features while "The Student" maintains the characteristics of toska yet redirects it towards a specific and productive end. Both works present toska as a powerful, permanent force that cannot be dispelled, but "The Student" shows how a character's acceptance of toska leads to his realization of the "truth and beauty" of human life and a resulting optimism based on this successful redirection. This thesis as a whole serves to shed light on the concept of toska in Chekhov's literary oeuvre and attempts to supplement the existing literary criticism of this phenomenon.
title: Evidence based imaging in the trauma patient
Creators: name: Valdes Solis, Pablo
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Trauma
subject: Conventional radiography
subject: CT
subject: Ultrasound
subject: Emergency

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To review the principles of Evidence-based Medicine and Evience-based Radiology based To evaluate how to apply the Evidence-based Radiology principles in the poly-trauma patient. To discuss it some of the most used radiology guidelines (as the ACR...
Supplementary File 1 (List of 75 recommendation statements sent to experts)
Creators: name: Chakraborty, Stuti
name: Chockalingam, Manigandan
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Other Rehabilitation and Therapy
subject: Orthotics and Prosthetics
subject: Physiotherapy
subject: Occupational Therapy
subject: Public Health
subject: Medicine and Health Sciences
subject: Rehabilitation and Therapy
subject: Physical Therapy

description: This supplementary file consists of the 75-statement list of recommendations which was sent to the expert group for rating.
title: Cerebral Venous Thrombosis: Imaging and Spectrum of Etiologies
Creators: name: Alami, Badreeddine
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Diagnostic procedure
subject: MR
subject: CT
subject: Neuroradiology brain
subject: Embolism / Thrombosis

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: To be aware of the main etiologies of cerebral veinous thrombosis. To become familiar with imaging techniques and findings of cerebral veinous thrombosis. To learn about diagnostic pitfalls of cerebral veinous...
title: Evaluation of coronary artery bypass graft (CABG) using 640 slices multidetector computed tomography (TCDM) angiography: image quality and dosed
Creators: name: Di Sibio, Alessandra
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Cardiac
subject: Cardiovascular system
subject: Vascular
subject: CT
subject: CT-Angiography
subject: Contrast agent-intravenous

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Coronary artery bypass grafting (CABG) is the standard treatment for advanced coronary artery disease. It is well known that graft patency is the most important variable that determines the long-term clinical outcome; indeed, the natural history of...
Archäobotanik in der Umweltbildung
Creators: name: Zach, Barbara
Publisher: name: Offa
Year: 2013

description: Archäobotanik in der Umweltbildung bedeutet neue Blickwinkel zu eröffnen. Partizipative Methoden sind ein Schwerpunkt und ökologische, ökonomische, soziale und kulturelle Aspekte werden einbezogen. Die Sichtweise wird auch auf die Zukunft ausgerichtet. Dies sind Anforderungen der neuen Bildung für nachhaltige Entwicklung (BNE), die hier vorgestellt werden. Über die Einbindung von Ergebnissen aus der Pollenanalyse bei Naturführungen sowie Nachahmen von Ergebnissen aus der Großrestanalyse durch eigenes Tun werden Schlüsselkompetenzen gefördert. Diese werden in einem eigenen Kapitel dargestellt. Wie archäobotanisches Wissen hierzu beitragen kann, ist in Beispielen veranschaulicht, die von der Autorin mit verschiedenen Gruppen durchgeführt wurden.
description: Offa, 69/70 (2012/2013)
Revisit the fundamental plane of black-hole activity from sub-Eddington to quiescent state
Creators: name: Wu, Qingwen
name: Dong, Ai-Jun
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: It is very controversial whether radio--X-ray correlation as defined in LH state of XRBs can extend to quiescent state (e.g., X-ray luminosity less than a critical value of $L_{\rm X,c} \sim10^{-5.5}L_{\rm Edd}$) or not. In this work, we collect a sample of XRBs and low luminosity active galactic nuclei (LLAGNs) with wide distribution of Eddington ratios to reexplore the fundamental plane between 5 GHz radio luminosity, $L_{\rm R}$, 2-10 keV X-ray luminosity, $L_{\rm X}$, and black hole (BH) mass, $M_{\rm BH}$, namely $\log L_{\rm R}=ξ_{\rm X} \log L_{\rm X}+ξ_{\rm M}\log M_{\rm BH}+\rm constant$. For the whole sample, we confirm the former fundamental plane of Merloni et al. and Falcke et al. that $ξ_{\rm X}\sim 0.6$ and $ξ_{\rm M}\sim 0.8$ even after including more quiescent BHs. The quiescent BHs follow the fundamental plane very well, and, however, FR I radio galaxies follow a steeper track comparing other BH sources. After excluding FR Is, we investigate the fundamental plane for BHs in quiescent state with $L_{\rm X}< L_{\rm X,c}$ and sub-Eddington BHs with $L_{\rm X}> L_{\rm X,c}$ respectively, and both subsamples have a similar slope, $ξ_{\rm X}\sim0.6$, which support that quiescent BHs may behave similar to those in low-hard state. We further select two subsamples of AGNs with BH mass in a narrow range (FR Is with $M_{\rm BH}=10^{8.8\pm0.4}$ and other LLAGNs with $M_{\rm BH}=10^{8.0\pm0.4}$) to simulate the behavior of a single supermassive BH evolving from sub-Eddington to quiescent state. We find that the highly sub-Eddington sources with $L_{\rm X}/L_{\rm Edd}\sim10^{-6}-10^{-9}$ still roughly stay on the extension of radio--X-ray correlation as defined by other sub-Eddington BHs. Our results are consistent with several recent observations in XRBs that the radio--X-ray correlation as defined in low-hard state can extend to highly sub-Eddington quiescent state.
description: 8 pages, 3 figures, MNRAS 453,3447-3454, 2015
Linear game non-contextuality and Bell inequalities - a graph-theoretic approach
Creators: name: Gnaciński, Piotr
name: Rosicka, Monika
name: Ramanathan, Ravishankar
name: Horodecki, Karol
name: Horodecki, Michał
name: Horodecki, Paweł
name: Severini, Simone
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the classical and quantum values of one- and two-party linear games, an important class of unique games that generalizes the well-known XOR games to the case of non-binary outcomes. We introduce a ``constraint graph" associated to such a game, with the constraints defining the linear game represented by an edge-coloring of the graph. We use the graph-theoretic characterization to relate the task of finding equivalent games to the notion of signed graphs and switching equivalence from graph theory. We relate the problem of computing the classical value of single-party anti-correlation XOR games to finding the edge bipartization number of a graph, which is known to be MaxSNP hard, and connect the computation of the classical value of more general XOR-d games to the identification of specific cycles in the graph. We construct an orthogonality graph of the game from the constraint graph and study its Lovász theta number as a general upper bound on the quantum value even in the case of single-party contextual XOR-d games. Linear games possess appealing properties for use in device-independent applications such as randomness of the local correlated outcomes in the optimal quantum strategy. We study the possibility of obtaining quantum algebraic violation of these games, and show that no finite linear game possesses the property of pseudo-telepathy leaving the frequently used chained Bell inequalities as the natural candidates for such applications. We also show this lack of pseudo-telepathy for multi-party XOR-type inequalities involving two-body correlation functions.
description: 17 pages. Submitted to the NJP focus issue on Device-Independent QI
title: T1 Mapping for Detection of Left Ventricular Myocardial Fibrosis in Hypertrophic Cardiomyopathy: A Preliminary Study
Creators: name: Lu, Minjie
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: MR
subject: Cardiac
subject: Decision analysis
subject: Image registration

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To investigate the diagnostic value of T1 mapping imaging of evaluating fibrosis in patients with hypertrophic...