cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 1 of Expression of EMT-related genes in lymph node metastasis in endometrial cancer: a TCGA-based study
Creators: name: He, Li
name: Junzhu, Wang
name: Liwei, Li
name: Luyang, Zhao
name: Zhiqi, Wang
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Plant Biology

description: Additional file 1: Supplementary figure 1. A diagram of the mechanism of the KS method, exhibiting a tumor tissue with a more mesenchymal phenotype. The lower ECDF curve represented the higher expression of mesenchymal gene signatures, thus the EMT score of the presented sample is positive. Supplementary figure 2. EMT scores were distributed unevenly when stratified by grade (A), histological subtype (B), MI (C) and molecular subtypes (D). LN: lymph node; MI: myometrial invasion; CNH: Copy-number high; CNL: copy-number low; MSI-H: microsatellite instability-high. Supplementary figure 3. Heatmap for ERGs between tumor samples from LN positive and negative cases (normalized for exhibition). ERG: EMT-related gene; LN: lymph node. Supplementary figure 4. A DAG displaying the relationship between BPs from GO analysis. DAG: directed acyclic graph. BP: biological process; GO: Gene Ontology. Supplementary figure 5. PPI network by Cytohubba, with top 5 hub genes highlighted by colors. PPI: protein–protein interaction. Supplementary figure 6. Calibration plot suggesting predicted probabilities of LNM corresponded closely to the actually observed proportions. LNM: lymph node metastasis. Supplementary figure 7. A significantly positive correlation between proteins and mRNA in members of the 7-gene signature based on CPTAC. X axis: mRNA, Y axis: protein. CPTAC: Clinical Proteomic Tumor Analysis Consortium.
Imaging the Molecular Disk Orbiting the Twin Young Suns of V4046 Sgr
Creators: name: Rodriguez, David R.
name: Kastner, Joel H.
name: Wilner, David
name: Qi, Chunhua
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have imaged the disk surrounding the nearby (D~73 pc), ~12 Myr, classical T Tauri binary system V4046 Sgr with the Submillimeter Array (SMA) at an angular resolution of ~2". We detect a rotating disk in 12CO(2-1) and 13CO(2-1) emission, and resolve the continuum emission at 1.3 mm. We infer disk gas and dust masses of ~110 and ~40 Earth masses, respectively. Fits to a power-law disk model indicate that the molecular disk extends to ~370 AU and is viewed at an inclination of between ~33 and ~39 degrees for dynamical stellar masses ranging from 1.8 $M_\odot$ down to 1.5 $M_\odot$ (the range of total mass previously determined for the central, 2.4 day spectroscopic binary). This range of disk inclination is consistent with that assumed in deducing the central binary mass (i.e., 35 degrees), suggesting that the V4046 Sgr binary system and its circumbinary, molecular disk are coplanar. In light of the system's age and binarity, the presence of an extensive molecular disk orbiting V4046 Sgr provides constraints on the timescales of processes related to Jovian planet formation, and demonstrates that circumbinary Jovian planets potentially could form around close binary systems.
description: 17 pages, 8 figures, accepted for publication in ApJ
Additional file 2 of Effective production of human growth factors in Escherichia coli by fusing with small protein 6HFh8
Creators: name: Kim, Young Su
name: Lee, Hye-Jeong
name: Man-Ho Han
name: Nam-Kyung Yoon
name: Yeu-Chun Kim
name: Ahn, Jungoh
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 2: Figure S1. Enhancement of TEV protease cleavage efficiency by modification of the N-terminus of the protein of interest. Glycine was inserted between the TEV protease cleavage site and N-terminus of bFGF, the protein of interest. The fusion protein was purified by HisTrap chromatography and cleaved by the TEV protease. The protein mixtures were resolved on 4–12% Bis–Tris Plus SDS-PAGE gel. The image is representative of two independent experiments
title: Expressions of Early Silurian climate changes in the stratigraphic record of Baltica and South China
Creators: name: Lehnert, Oliver
name: Meinhold, Guido
name: Joachimski, Michael
name: Yan, Guanzhou
name: Calner, Mikael
name: Männik, Peep
name: Frýda, Jiri
name: Gong, Fangyi
name: Wu, Rongchang
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2023

description:
The Silurian record in the Siljan crater, Europe’s largest impact structure, in the succession at Baizitian (Sichuan Province) in South China, in other Swedish and Estonian sections, together with records from Laurentia and high latitude peri-Gondwana imply a series of glacial events during the Early Silurian. The associated climate shifts are expressed in stratigraphic sections as δ18Oapatite anomalies and subaerially exposed sequence boundaries with associated palaeokarst in the tropics and subtropics. During the continuing icehouse after the Hirnantian glacial maximum several stratigraphic gaps developed in the basal Silurian in many parts of the world due to extremely low sea levels, erosion, and first onlaps during deglaciations much later in Silurian times.

Our Telychian to Sheinwoodian chemostratigraphic data include several prominent excursions, such as the pronounced Manitowoc Carbon Isotope Excursion (Manitowoc CIE, ‘Manitowoc Excursion’), spanning the upper Pterospathodus eopennatus Zone and the lower Pterospathodus amorphognathoides amorphognathoides Superzone. Well-bracketed by conodont biostratigraphy, the Manitowoc CIE is an essential tie-point for a detailed correlation between the Baizitian succession in South China and the Telychian strata of Baltica and Laurentia.

Here we focus on the Early Silurian climate development spanning the Telychian Valgu glaciation (more widely recognized than older glacials during the Aeronian), the Manitowoc Icehouse including two short-term glacial events and the late Telychian Glaciation (LTG), , and the Sheinwoodian glaciation reflected by the Sheinwoodian Oxygen Isotope Excursion (SOIE) following directly after the maximum δ13C values of the widely known Early Sheinwoodian Carbon Isotope Excursion (ESCIE).
Gaussian coordinate systems for the Kerr metric
Creators: name: Novello, M.
name: Bittencourt, E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present the whole class of Gaussian coordinate systems for the Kerr metric. This is achieved through the uses of the relationship between Gaussian observers and the relativistic Hamilton-Jacobi equation. We analyze the completeness of this coordinate system. In the appendix we present the equivalent JEK formulation of General Relativity -- the so-called quasi-Maxwellian equations -- which acquires a simpler form in the Gaussian coordinate system. We show how this set of equations can be used to obtain the internal metric of the Schwazschild solution, as a simple example. We suggest that this path can be followed to the search of the internal Kerr metric.
Old ways of knowing, new ways of doing : pacific northwest coast art in the age of technology
Creators: name: Corbet, Yadira Rosa
Publisher: name: University of British Columbia
Year: 2022

description: Advanced wood science technologies such as computer numerical control (CNC) devices are being introduced into the artistic and cultural practice of Pacific Northwest Coast (PNWC) art. This intersection is due to the dawning of the Age of Information where automated tools and technology are reshaping the world. The questions that arise are, in what ways modern day technologies will inform PNWC artistry. The aim was to construct a preliminary understanding of this intersection, and bring forward the expertise and knowledge of artists in the field of PNWC art to inform future artists, art collectors, museums, anthropologists and so on. Through an indigenized method, “storywork” and semi-structured interviewing, PNWC artists, museum curators and gallery owners who deal primarily with PNWC art, were asked about their views, opinions and experiences, within the intersection of technologies and PNWC art (N=22). The results showed that onlookers from outside Indigenous cultures believe that art must be ‘traditional’ or ‘authentic” to the past by placing a mythical box around PNWC artists that does not allow for growth and change. Artists themselves do not view technology as something outside of their traditional knowledge. In fact, adopting available technology and tools has always been part of traditional ways of being, then and now. The use of modern technologies does not detract from perceptions of authenticity, it may change the methods, but the end is still art, culture and heritage. This work is deeply connected to decolonizing the realm of academia by legitimizing Indigenous epistemologies, and centering on Indigenous voices.
Sachrechnen im Dialog – Schülerinnen und Schüler erwerben selbsttätig handelnd mit Hilfe des Compad®-Kastens im "Kooperativen Unterricht" Strategien zur Lösung von Sachaufgaben
Creators: name: Olbrich, Hanne
Publisher: name: Zenodo
Year: 2015
Subjects: Sonderpädagogik
Schulische Heilpädagogik
Sachrechnen
Masterarbeit

description: Diese Masterarbeit möchte mit Hilfe des Compad®–Kastens nachweisen, dass eine erfolgreiche Text- Leserinteraktion, Schülerinnen und Schülern (SuS) einer fünften Klasse das inhaltliche Verstehen von Sachaufgaben und darauf aufbauend einen erfolgreichen Lösungsprozess ermöglicht. Sie sind in der Lage bereits erworbenes Erfahrungs- und Fachwissen kreativ handelnd aufzurufen und durch sprachliche Interaktion zu erweitern. Die SuS stärken ihr Selbstwertgefühl, erwerben methodisch–strategische Handlungskompetenzen und übernehmen die Verantwortung für ihr Handeln. Die Arbeit mit dem Compad®– Kasten bietet Einblick in die Denk- und Handlungswelt der SuS, ermöglicht ihnen Konferenzen zum Lösen von Aufgaben zu halten und gemeinsam über ein Problem zu sprechen. Der Lernstand einzelner SuS und einer ganzen Klasse wird erfasst und ermöglicht so gezielte Einführungen von mathematischen Sachinhalten.
title: Climatic controls on the ecological ascendancy of dinosaurs
Creators: name: Dunne, Emma
name: Schnetz, Lisa
name: Farnsworth, Alexander
name: Butler, Richard
name: Benson, Roger
name: Godoy, Pedro
name: Greene, Sarah
name: Valdes, Paul
name: Lunt, Daniel
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2023

description:

The rise of dinosaurs during the Late Triassic was a pivotal event in the history of life on Earth, which led to them becoming dominant members of terrestrial ecosystems throughout the remainder of the Mesozoic. However, the drivers of this geographic expansion and explosion in biodiversity have been poorly understood. Early studies have hypothesized that the extinction of co-occurring vertebrate groups such as aetosaurs, rauisuchians, and therapsids at the end-Triassic mass extinction, provided early dinosaurs with the opportunity to diversify into new niches. However, this pattern could instead be a response to climatic changes during this interval, especially given the increasing evidence that climate played a key role in constraining Triassic dinosaur distributions. Our work is the first to quantitatively explore the opportunistic expansion model by examining changes in dinosaur and tetrapod ‘‘climatic niche space’’ across the Triassic-Jurassic boundary. We found that Late Triassic sauropodomorph dinosaurs occupied more restricted climatic niche spaces than other dinosaurs, and were excluded from the hottest climate zones at low latitudes. The geographic expansion of sauropodomorphs after the mass extinction is linked to the expansion of their preferred climatic conditions. Evolutionary model-fitting analyses provide evidence for an important evolutionary shift from cooler to warmer climatic niches during the origin of Sauropoda, the clade that later in the Mesozoic became the iconic long-necked forms. Together, our results provide support for the key role of climate in the ascendancy of dinosaurs.
Additional file 3 of Effective production of human growth factors in Escherichia coli by fusing with small protein 6HFh8
Creators: name: Kim, Young Su
name: Lee, Hye-Jeong
name: Man-Ho Han
name: Nam-Kyung Yoon
name: Yeu-Chun Kim
name: Ahn, Jungoh
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 3: Figure S2. TEV protease treatment of aFGF (a) and VEGF165 (b) fusion proteins under different conditions. For the experiment, the fusion protein was purified by HisTrap chromatography and dialyzed against each buffer. TEV protease was treated with or without Triton X-100 and/or β-mercaptoethanol. The proteins were resolved on 4–12% Bis–Tris Plus SDS-PAGE gel. S: soluble fraction (after centrifugation); I: insoluble fraction; S + I: soluble and insoluble fraction mixture before centrifugation. The image is representative of two independent experiments
title: Das "Spracherleben" der "Gastarbeiter"
Creators: name: Durmic, Vildana
Year: 2023

description: Die vorliegende Arbeit untersucht ausgewählte Aspekte des „Spracherlebens“ (nach Brigitta Busch) von Gastarbeiter*innen in Österreich. Mittels sprachbiografisch akzentuierter narrativer Interviews mit vier Proband*innen die seinerzeit aus dem ehemaligen Jugoslawien als Arbeitsmigrant*innen nach Österreich gekommen sind, wurden Daten erhoben und mit der inhaltlich strukturierenden qualitativen Inhaltsanalyse (nach Kuckartz 2018) ausgewertet. Komplementär dazu erfolgte eine hermeneutische Auswertung von Fachliteratur. Der Fokus richtet sich dabei insbesondere auf das „Spracherleben“ dieser Menschen (z. B. soziale In- / Exklusion, Prestige / Stigma von Sprache(n), biografische Schlüsselerlebnisse) vor dem Hintergrund eines ungesteuerten Erwerbs der deutschen (Alltags-)Sprache im zeitgeschichtlichen Kontext des „Gastarbeiter“-Phänomens der Zweiten Österreichischen Republik. Die Thematik „Gastarbeiter“ in Österreich wurde bislang kaum aus dieser Perspektive aufgegriffen, weshalb die vorliegende Masterarbeit ein Beitrag zum Schließen dieser Forschungslücke leisten soll.
title: [Rezension zu:] Patrick Gautier Dalché (dir.), La Terre. Connaissance, représentations, mesure au Moyen Âge, Turnhout (Brepols) 2013, 710 p. (L’atelier du médiéviste, 13), ISBN 9782503547534, EUR 65,00.
Creators: name: Baumgärtner, Ingrid
Publisher: name: Universität Kassel
Year: 2014
Subjects: subject: 900
subject: Europa
subject: Geografie
subject: Geografischer Raum
subject: Raumwahrnehmung
subject: Rezension

description: CC BY-NC-ND 3.0
title: Celebrating thirty years of virtual outcrops: status and perspectives
Creators: name: Buckley, Simon J
name: Howell, John A
name: Naumann, Nicole
name: Ringdal, Kari
name: Vanbiervliet, Joris
name: Lewis, Conor
name: Chmielewska, Magda
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2023

description:
Thirty years ago, scientists from the Technical University of Denmark and University of Bergen published 3D outcrop acquisition and processing methods for large-scale vertical cliff sections in Greenland (Dueholm & Olsen, 1993), thus laying out a pathway to today’s state-of-the-art in high resolution virtual outcrop modelling. Although the photogrammetric methods employed were based on film cameras and early digital processing, the authors successfully created stereoscopic outcrop models that could be used for accurate measurement of cross sections, channel bodies, and derived parameters such as net-to-gross ratio. Fast forward to today, and virtual outcrop modelling has evolved rapidly, spanning early work using laser scanning, integration with hyperspectral imaging, and the full-circle return to photogrammetry. The latter has brought about a paradigm shift in field geoscience, driven by lightweight digital cameras, drone platforms, and powerful computing hardware combined with automated image matching and point cloud generation algorithms. This has empowered geologists and geoscientists to quickly – and at low cost – acquire and process high resolution, accurate 3D models for detailed analysis. Over the last five years, and particularly through the COVID-19 pandemic, virtual outcrop models have been increasingly used for “soft” purposes, in education and training, for introducing a wide range of different geological features and concepts that may be difficult to access in a single field area, or as the basis for integrating a range of geospatial, field and subsurface data. In this contribution we will explore the status and impact of virtual outcrops and offer thoughts on future perspectives.
Additional file 1 of Diagnostic yield, safety, and impact of transbronchial lung biopsy in mechanically ventilated, critically ill patients: a retrospective study
Creators: name: Ghiani, Alessandro
name: Neurohr, Claus
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Table S1. Comparison of CT features and CT diagnoses with the histopathological diagnoses obtained from transbronchial lung biopsy – all patients (n = 42). Table S2. Description of the histopathological patterns obtained from transbronchial lung biopsy – all patients (n = 42). Table S3. Comparison of broncho-alveolar lavage (BAL) with the histopathological diagnoses obtained from transbronchial lung biopsy (n = 21). Table S4. Results of the multivariable binary logistic regression analysis.
title: Overview of the ecological situation of open pit lakes of the lignite mining in Germany
Creators: name: Ramm, Jessica
name: Nixdorf, Brigitte
name: van de Weyer, Klaus
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2023

description:
The EU Water Framework Directive (WFD) demands a good ecological status or ecological potential for natural and artificial lakes larger than 50 ha until 2027. More than 100 artificial mining lakes originate from lignite mining activities in Germany. The specific chemistry of mining lakes with their high phosphorus retention capacity is a chance for the development of clear lakes that are poor in nutrients. For neutral mining lakes, the existing typology for natural lakes which is based on the biological quality elements was adapted. For acidic lakes, the phytoplankton assessment was modified by including the diversity of the phytoplankton. In total, 36 of the largest existing mining lakes in Germany were assessed and description of the limnological lake characteristics were elaborated. Some of the relevant lakes could not be sampled because they are still in filling process and under surveillance of the mining authorities or safety demands for sampling are not given. So far, 53 % of lakes considered in this study reach the good or better ecological potential. Three lakes fail this state because environmental quality standards for river basin-specific chemical pollutants are not complied. Only one lake shows too high trophic conditions. The currently applied assessment tools especially those for macrophytes and microphytobenthos do not meet the requirements for the specific ecological situation in acidic mining lakes. Therefore, these results can only be regarded as an intermediate status of assessment for mining lakes. A revision of the assessment process of macrophytes and microphytobenthos in acidic lakes is recommended.
Lorentz Invariance Violation and Chemical Composition of Ultra High Energy Cosmic Rays
Creators: name: Saveliev, Andrey
name: Maccione, Luca
name: Sigl, Guenter
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by experimental indications of a significant presence of heavy nuclei in the cosmic ray flux at ultra high energies ($\gtrsim 10^{19} \eV$), we consider the effects of Planck scale suppressed Lorentz Invariance Violation (LIV) on the propagation of cosmic ray nuclei. In particular we focus on LIV effects on the photodisintegration of nuclei onto the background radiation fields. After a general discussion of the behavior of the relevant quantities, we apply our formalism to a simplified model where the LIV parameters of the various nuclei are assumed to kinematically result from a single LIV parameter for the constituent nucleons, $η$, and we derive constraints on $η$. Assuming a nucleus of a particular species to be actually present at $10^{20}$ eV the following constraints can be placed: $-3\times10^{-2} \lesssim η\lesssim 4$ for $^{56}$Fe, $-2\times10^{-3} \lesssim η\lesssim 3\times10^{-2}$ for $^{16}$O and $-7\times10^{-5} \lesssim η\lesssim 1\times10^{-4}$ for $^{4}$He, respectively.
description: v1: 20 pages, 2 tables, 3 figures. v2: added minor comments. Accepted by JCAP
Radiative Properties of Reconnection-Powered Minijets in Blazars
Creators: name: Nalewajko, Krzysztof
name: Giannios, Dimitrios
name: Begelman, Mitchell C.
name: Uzdensky, Dmitri A.
name: Sikora, Marek
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We construct a numerical model of emission from minijets, localized flows driven by magnetic reconnection inside Poynting-flux-dominated jets proposed to explain the ultrafast variability of blazars. The geometrical structure of the model consists of two wedge-like regions of relativistically flowing gas, separated by a stationary shock. The dynamics is based on solutions of relativistic magnetic reconnection with a guide field from Lyubarsky (2005). Electron distributions in each region are chosen to the match the pressure and density of the local plasma. Synchrotron emission from both regions is used to calculate Compton scattering, Compton drag and photon-photon opacity effects, with exact treatment of anisotropy and the Klein-Nishina regime. Radiative effects on plasma are taken into account, including the dependence of pressure on electron radiative losses and adiabatic heating of the flow decelerating under Compton drag. The results are applied to the July 2006 flare in the BL Lac object PKS 2155-304, with the aim of matching TeV flux measurements by H.E.S.S. with models that satisfy the variability constraints, while keeping X-ray emission below simultaneous Chandra observations. We find that models of isolated minijets with a significant guide field overproduce X-ray emission, and that we must take into account the radiative interaction of oppositely-oriented minijets in order to achieve a high enough dominance by Comptonized TeV radiation. We argue that such interactions are likely to occur in a jet where there is substantial internal reconnection, producing a large number of misaligned minijets. Finally, we show that large jet magnetizations are indeed required to satisfy all observational constraints and that the effective Lorentz factor of the minijet plasma has to be larger than 50, in agreement with earlier one-zone estimates.
description: 14 pages, 10 figures, submitted to MNRAS
Two-Fermi-surface superconducting state and a nodal d-wave gap in the electron-doped Sm(1.85)Ce(0.15)CuO(4-d) cuprate superconductor
Creators: name: Santander-Syro, Andres F.
name: Ikeda, Masaki
name: Yoshida, Teppei
name: Fujimori, Atsushi
name: Ishizaka, Kyoko
name: Okawa, Mario
name: Shin, Shik
name: Greene, Richard L.
name: Bontemps, Nicole
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report on laser-excited angle-resolved photoemission spectroscopy (ARPES) in the electron-doped cuprate Sm(1.85)Ce(0.15)CuO(4-d). The data show the existence of a nodal hole-pocket Fermi-surface both in the normal and superconducting states. We prove that its origin is long-range antiferromagnetism by an analysis of the coherence factors in the main and folded bands. This coexistence of long-range antiferromagnetism and superconductivity implies that electron-doped cuprates are two-Fermi-surface superconductors. The measured superconducting gap in the nodal hole-pocket is compatible with a d-wave symmetry.
description: 4 pages, 3 figures, accepted to Phys. Rev. Lett
title: Εκτίμηση του κινδύνου σε ένα ασφαλιστικό χαρτοφυλάκιο εξαρτημένων κινδύνων μέσω της θεωρίας των συνδέσμων
title: Risk estimation of an insurance portfolio of dependent risks using copulas
titleType: AlternativeTitle
Creators: name: Καρακωνσταντίνου, Ιωάννα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Διαχείριση κινδύνου
subject: Εξάρτηση
subject: Συνάρτηση σύζευξης
subject: Συναρτήσεις σύζευξης
subject: Σύζευξη
subject: Copula
subject: Θεώρημα Sklar
subject: Μέτρα κινδύνου
subject: Μέτρο κινδύνου
subject: Αρχιμήδεια οικογένεια σύζευξης
subject: Αρχιμήδεια σύζευξη
subject: Σχέσεις εξάρτησης
subject: Αξία σε κίνδυνο
subject: Ασφαλιστικό χαρτοφυλάκιο
subject: Value at Risk

description: Η διαχείριση των κινδύνων αποτελεί καθημερινή πρόκληση για τις ασφαλιστικές εταιρείες και τα χρηματοπιστωτικά ιδρύματα και βασικό βήμα στην ανάλυση αυτών είναι η κατανόηση της εξάρτησης μεταξύ των αποτελεσμάτων. Η παρούσα εργασία επικεντρώνεται στις συναρτήσεις σύζευξης (Copulas), ένα εργαλείο για την κατανόηση των σχέσεων μεταξύ των τυχαίων μεταβλητών. Στο πρώτο κεφάλαιο εξετάζουμε μέτρα κινδύνου τα οποία χρησιμοποιούνται ευρέως στην ασφάλιση και τα χρηματοοικονομικά, παρουσιάζουμε ιδιότητες αυτών και μεθόδους εκτίμησης τους. Στην συνέχεια, περιγράφουμε το θεώρημα Sklar, θεμέλιο στην θεωρία των συζεύξεων, παρουσιάζουμε διδιάστατες συναρτήσεις σύζευξης και τις ιδιότητες αυτών και κλείνουμε το δεύτερο κεφάλαιο με την Αρχιμήδεια οικογένεια συζεύξεων. Τέλος, μελετάμε ένα ασφαλιστικό χαρτοφυλάκιο Αστικής Ευθύνης αυτοκινήτου, προσαρμόζουμε μέσω της γλώσσας προγραμματισμού R κατάλληλη σύζευξη στα δεδομένα μας και με βάση αυτήν υπολογίζουμε την αντίστοιχη δεσμευμένη Αξία σε κίνδυνο.
Light field spatial and angular super-resolution
Creators: name: Wafa, Abrar
Publisher: name: University of British Columbia
Year: 2024

description: Light field technology offers a truly immersive experience, having the potential to revolutionize entertainment, education, virtual and augmented reality, autonomous driving, and digital health. There are two common techniques for capturing LF: multiple-camera arrays and microlens array (i.e., plenoptic camera). However, LF capturing techniques face a trade-off between spatial and angular resolution. That is, camera arrays capture high-spatial-resolution LF images with sparse angular sampling (i.e., fewer views), while plenoptic cameras capture dense angular sampling (i.e., more views) with low-spatial-resolution LF images due to the size of the plenoptic camera sensors. Since constructing an LF camera array is expensive, time consuming, and often impractical, many efforts have been made to improve the spatial resolution of LF images captured by plenoptic cameras. In this thesis, we propose two novel methods for LF spatial super-resolution (SR). First, we propose a learning-based model for spatial SR which takes advantage of the epipolar image plane (EPI) information to ensure smooth disparity between the generated views and in turn construct high-spatial-resolution LF images. In our second contribution, we exploit the full four-dimensional (4D) LF images by proposing a deep-learning spatial SR approach that considers the spatial and angular information (i.e., information within each view and information among other views) and progressively reconstructs high-resolution LF images at different upscaling levels. Another challenge when dealing with LF images is the enormous amount of data generated, as they require significant increase in bandwidth. A possible solution may be to drop specific views at the transmitting end and effectively synthesize them at the receiver end, thus minimizing the amount of data needed to be transferred or stored. Accordingly, our third contribution focuses on LF angular SR by synthesizing virtual LF views from a sparse set of input views using two novel approaches. First, a deep recursive residual network is applied using the EPI information to generate one in-between view. Second, a generative adversarial network approach is proposed, which generates up to five in-between views, using LF spatial and angular information for an efficient angular SR with minimal impact on the visual quality on the generated LF content.
title: Integration aspects of ATES in urban district heating networks
Creators: name: Strodel, Nikolai
name: Zimmermann, Tobias
name: Pieper, Henrik
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2023

description:
In progressively decarbonized district heating systems with high shares of renewable energies, seasonal large-scale heat storage systems are a central component for overcoming the seasonal offset between heat generation and demand. In addition to Pit Thermal Energy Storages (PTES), which often encounter high spatial resistance in urban contexts, Aquifer Thermal Energy Storages (ATES) in the three geothermal regions in Germany offer a suitable solution for large-scale and cost-effective thermal energy storage with high surface area efficiency. Currently, however, there is no operating high-temperature ATES in Germany that is integrated into an urban heating network. The focus of this presentation is on aspects of interaction between aquifer storage, large-scale heat pumps and district heating networks in Germany.

The framework conditions for the technical integration of heat from aquifer storage are subject to constant change. On the one hand, district heating systems are usually operated with sliding supply and return temperatures, on the other hand, the temperature continuously decreases during discharging period.

This requires different solutions for the integration of aquifer storage, which are to be systematized and classified. Central integration possibilities are the direct use in supply line, the increase of the return temperature as well as the use of large heat pumps.

The lecture will present the findings from the research project "OptInAquiFer" on reasonable integration possibilities of aquifer storage in German district heating networks. In addition, current research on large-scale HP configurations will be highlighted to identify suitable and efficient HP capacities, refrigerants and HP configurations for ATES applications.
title: Bioleaching of Rare Earth Elements from Primary Resources using Heterotrophic Organisms
Creators: name: Schmidt, Debby
name: Altenberger, Uwe
name: Kutschke, Sabine
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2023

description:
Rare earth elements (REE) are essential for various modern "green" technologies. However, conventional mining and extraction methods for REEs are energy-intensive, environmentally harmful, and call for the evaluation of alternative extraction procedures for these critical raw materials. Bioleaching processes have been successfully employed in the industrial extraction of metals and offer a promising and eco-friendly approach to enhance the sustainability of REE extraction. This study evaluates the potential of bioleaching REEs from unprocessed carbonatitic and alkaline bulk rocks.

Batch and supernatant leaching experiments were conducted on a Carbonatite sample from the Fen-Complex (Norway) and two nepheline syenites (a Grennatite and a pegmatitic Grennaite from Norra Kärr, Sweden), utilizing the heterotrophic organisms Yarrowia lipolytica and Tea fungus Kombucha. The influences of bulk mineralogy on microbial growth and metabolite production, as well as leaching rates and applicability of the different approaches were assessed.

The results demonstrate varying recovery rates based on mineralogy and leaching methods, with preferential leaching of light or heavy REEs depending on the selected organisms. Notably, the highest leaching efficiency of 54% REE recovery was achieved with Y. lipolytica supernatant leaching on pegmatitic Grennaite during a 19-day experiment. Carbonatite and Grennaite samples exhibited lower maximum leaching rates of 5% and 8%, respectively.

The findings demonstrate the proof-of-concept feasibility of bioleaching REEs from unprocessed bulk rock materials and highlight its strong potential, especially in providing a sustainable solution for utilizing low-grade ores and mine waste.
Additional file 2 of Development of a predictive model for integrated medical and long-term care resource consumption based on health behaviour: application of healthcare big data of patients with circulatory diseases
Creators: name: Takura, Tomoyuki
name: Goto, Keiko Hirano
name: Asao Honda
Publisher: name: figshare
Year: 2021
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 2: Table S1. Logistic regression analysis for 50% cut-off of integrated medical and long-term care costs.
title: Επισκόπηση λογισμικού 3Δ μοντελοποίησης
title: Overview of 3D modeling software
titleType: AlternativeTitle
Creators: name: Κολλιοπούλου, Μαρίνα
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2021
Subjects: 3D εκτύπωση
3D λογισμικό
3D Printing
Engineering
3D software

description: H 3Δ μοντελοποίηση και εκτύπωση αποτελεί έναν από τους πυλώνες της 4ης Βιομηχανικής Επανάστασης και οι εφαρμογές της απαντώνται σε πολλαπλά πεδία. Σκοπός της παρούσης πρότασης διπλωματικής εργασίας είναι η βιβλιογραφική επισκόπηση λογισμικών τρισδιάστατης μοντελοποίησης και εκτύπωσης, με σκοπό τη παρουσίαση των βασικών δυνατοτήτων τους με συγκεκριμένα κριτήρια όπως, το κόστος , η ευχρηστία, δυνατότητες μεταξύ άλλων. Επίσης, αναφέρονται λογισμικά που χρησιμοποιούνται κυρίως από μηχανικούς και έχουν ως στόχο, τη μοντελοποίηση, παραμετροποίηση, προσομοίωση και εν τέλει εκτύπωση των μοντέλων που έχουν σχεδιαστεί. Κάθε ενότητα της διπλωματικής αυτής, περιλαμβάνει ένα λογισμικό, του οποίου αναπτύσσονται οι βασικές λειτουργίες καθώς και οδηγίες χρήσης τους. Επιπλέον, γίνονται συγκρίσεις μεταξύ αυτών των λογισμικών και δημιουργείται ένας πίνακας αποτελεσμάτων με βάση κάποια βασικά κριτήρια όπως, το κόστος, το λογισμικό στο οποίο μπορεί να τρέξει το πρόγραμμα και το επίπεδο δυσκολίας χρήσης. Τέλος, γίνεται η καταγραφή των συμπερασμάτων από τη σύγκριση των προγραμμάτων, με βάση το επίπεδο γνώσης που έχει κάποιος πάνω στο πρόγραμμα. Ως προς το επίπεδο αρχάριο, μεταξύ των, Sketchup, SelfCAD, TinkerCAD, 3D Slash, Wings 3D το καλύτερο είναι το TinkerCAD. Ως προς το επίπεδο ενδιάμεσο (όχι αρχάριο και όχι προχωρημένο επίπεδο), μεταξύ των Blender, DesignSpark Mechanical, FreeCad, Meshmixer, nanoCAD, eMachineShop, το καλύτερο είναι το Blender και το FreeCAD και ανάμεσα σε αυτά τα δύο το FreeCAD. Ως προς το επαγγελματικό επίπεδο, μεταξύ των, Creo, Rhino, Onshape, Solid Edge, το καλύτερο είναι το Onshape. Ως προς το βιομηχανικό επίπεδο, μεταξύ των, Fusion360, AutoCAD, Inventor, SolidWorks, Siemens NX, Art of Illusion, το καλύτερο το Art of Illusion.
Additional file 1 of Development of a predictive model for integrated medical and long-term care resource consumption based on health behaviour: application of healthcare big data of patients with circulatory diseases
Creators: name: Takura, Tomoyuki
name: Goto, Keiko Hirano
name: Asao Honda
Publisher: name: figshare
Year: 2021
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 1: Figure S1. Theoretical framework for explanatory variables focusing on medical and long-term care costs (.doc file). The relationship between the explanatory variables that make up a broad adherence can be preliminarily explained as a theoretical framework by focusing on medical and long-term care costs, which are objective variables of the prediction model. The background to the above is that the predictors were searched and selected as explanatory variables for resource consumption.
Weak dissipation does not result in disappearance of persistent current
Creators: name: Gurtovoi, V. L.
name: Ilin, A. I.
name: Nikulov, A. V.
name: Tulin, V. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Experimental results obtained last years corroborate a prediction made by I.O. Kulik forty years ago that the energy dissipation does not result in disappearance of equilibrium circular current observable in the normal state of superconductor rings and normal metal rings. Contrary interpretations of the persistent current as a Brownian motion or a dissipationless current are compared in the point of view of the observations of this phenomenon at presence of an electric potential difference. Distinctions between the quantum phenomena at atomic and mesoscopic levels are accentuated. In connection of the quantum oscillations in magnetic field of potential difference observed on asymmetric rings with the persistent current, it is pointed out that an experimental check of such phenomenon at thermodynamic equilibrium is possible.
description: 14 pages, 3 figures
title: Data Management for the App UmweltNAVI of the Federal State of Lower Saxony in Germany
Creators: name: Müller, Joachim
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2023

description:
The App UmweltNAVI Niedersachsen (see the poster in session "4.10" or https://umwelt-navi.info/) communicates geospatial data to a broad user community of education, individuals or experts. In order to adequately present the data in a mobile context, the data must be harmonized, transformed, and combined with other sources. To achieve this, an infrastructure was created that allows editors to integrate data sources and enrich them with information. For example, Web Feature Services, ESRI Shapefiles, SensorThings APIs (STA) are under the data sources. A GUI-guided transformation process enables the mapping of raw data to the harmonized data schema. For the presentation, complex data is simplified, data reconciliation with additional data sources (i.e. Wikipedia or Observation.org) is performed, and the resulting data is stored in a scalable backend. Currently, the database contains 1.8 million records from 57 regional and national data sources and 178,000 images.
Only open source or freely usable software components are used, such as Elasticsearch, Postgres/PostGIS, Airflow or Directus. The delivery layer is designed redundantly for high-performance, fail-safe operation.
A standards-compliant interface (OGC-API Feautures) is being planned to provide access to the data for further processing.
The project was initiated by the Lower Saxony Ministry for the Environment, Energy and Climate Protection in Germany and was implemented together with the companies Bearingpoint and wemove digital solutions. The principle of presenting geodata can also be applied to other areas. The software is basically available for subsequent use.
High-efficiency photospheric emission of long-duration gamma-ray burst jets: the effect of the viewing angle
Creators: name: Lazzati, Davide
name: Morsony, Brian J.
name: Begelman, Mitchell C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of a numerical investigation of the spectra and light curves of the emission from the photospheres of long-duration gamma-ray burst jets. We confirm that the photospheric emission has high efficiency and we show that the efficiency increases slightly with the off-axis angle. We show that the peak frequency of the observed spectrum is proportional to the square root of the photosphere's luminosity, in agreement with the Amati relation. However, a quantitative comparison reveals that the thermal peak frequency is too small for the corresponding total luminosity. As a consequence, the radiation must be out of thermal equilibrium with the baryons in order to reproduce the observations. Finally, we show that the spectrum integrated over the emitting surface is virtually indistinguishable from a Planck law, and therefore an additional mechanism has to be identified to explain the non-thermal behavior of the observed spectra at both high and low frequencies.
description: 6 pages, 8 figures, ApJ in press (few changes to figures)
title: UmweltNAVI Niedersachsen - an app for the presentation of geospatial data not only from the environmental sector.
Creators: name: Müller, Joachim
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2023

description:
Governmental and scientific institutions often have a problem communicating their data treasure to people outside their community. Presenting geospatial data in an appealing and accessible way is a challenge, especially when non-scientific people are the target audience. The app "UmweltNAVI Niedersachsen" sets out to do just that and demonstrates it using institutional environmental data. A person can discover the data in the immediate vicinity or in other locations. The data can be displayed either as polygons or as map layers (e.g. geotopes, noise and radiation pollution, flood areas, occurrence of wolf and lynx). When opening a dataset, the person receives various detailed information combined from different sources, like Wikipedia or Observation.org.
The app was designed for a broad user community of education, interested individuals or experts. Easy navigation, understandable operation and various functions that invite to discover are here to appeal to people of all ages. A knowledge area deepens the topics and allows dedicated viewing of individual datasets. Other functions, such as "geo-caching" of datasets, a quiz or the possibility to upload own photos to the data, are intended to motivate people to engage with the topics.
The project was initiated by the Lower Saxony Ministry for the Environment, Energy and Climate Protection/Germany and was implemented together with the companies Bearingpoint and wemove digital solutions. The principle of presenting geodata can also be applied to other areas. The software is basically available for subsequent use.
The poster shows essential aspects of the app and intends to arouse interest.
https://umwelt-navi.info/
title: Towards a geochemical approach to guide hydrothermal REE recovery from NdFeB magnets
Creators: name: Brunet, Fabrice
name: Cabane, Hugues
name: Denti, Simona
name: Rivoirard, Sophie
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2023

description:
The NdFeB magnet world demand has doubled since 2005 to reach above 120 kton in 2020 [1]. The growing demand for REEs prompts their recycling. Sintered NdFeB permanent magnets are usually composed of above 20 wt.% Nd and a few wt.% of Pr and Dy. There are two main recycling ways for REE-based magnets. In the “short-loop process”, the main alloy is maintained in the valorized magnets, meaning that the microstructure and magnetic properties directly arise from the end-of-life product. In the “long loop” recycling process, one tries to extract the REEs from the alloy, which is the purpose of the present work.

The chemical separation of REEs from each other is difficult due to the similarity of their chemical properties. Following the encouraging results obtained by [2] in recovering REEs from NdFeB by hydrothermal treatment, we developed a geochemical approach of aqueous fluid – REE-compounds interactions based on the use PHREEQC software with the implementation of relevant REE-phases in the database. The database is tested against hydrothermal experiments on NdFeB powders with in-situ solution sampling. When reacted at 250°C and 100 bar, NdFeB powders transform into Nd(OH)2, magnetite and Nd-borates along with large amounts of H2. The low Nd solubility measured in the experiment is likely controlled by Nd-borates. The database will allow to investigate the effect of chlorine or CO2 on the REE behaviour.

[1] Yang, Y. et al. (2017). J. Sustain. Metall., 3, 122-149.

[2] Maât, N. et al. ACS Sustain. Chem. Eng., 4, 6455-6462.
title: Asymmetric river incision records the Quaternary uplift of the Rhenish Massif
Creators: name: Balling, Philipp
name: Kolomaznik, Silvia
name: Grützner, Christoph
name: Ustaszewski, Kamil
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2023

description:
The topography of the Rhenish Massif is known to be affected by Late Cenozoic uplift. Recent GNSS studies imply surface uplift rates of up to 1 mm/a, likely controlled by a mantle plume beneath the Eifel. Studies on Rhine River terraces show that central parts of the Rhenish Massif have been uplifted by 140 to 250 m since 700-800 ka. These figures correspond to a very low long-term average uplift rate of 0.1-0.3 mm/a, which decrease to even lower rates towards the margins of the Rhenish Massif. There, conventional geomorphic analyses, such as KSN values, Chi-maps and basin asymmetries, show no evidence of vertical motions.

Field observations in several valleys of the Diemel river catchment in the northeastern Rhenish Massif show steeper west-facing topographic slopes compared with flatter east-facing slopes, suggesting asymmetric bedrock incision due to ongoing surface uplift. We analysed topographic river profiles on a regional scale in five catchments (Möhne, Alme, Ruhr, Diemel and Eder) using 1 m-resolution Lidar data to see whether they are affected by asymmetric river incision Our results show that only the S-N oriented streams cutting into lithologically heterogeneous rock formations show asymmetric incision. This pattern resulted from uplift and tilting of the Rhenish Massif towards the NE, causing differential erosion.

These preliminary results will be substantiated by a more regional study comprising the entire margin of the Rhenish Massif. We aim to investigate whether the slow vertical surface movements around the Eifel Plume could have led to asymmetric bedrock incision elsewhere, too.