cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Lepton flavor violation in inverse seesaw model
Creators: name: Sun, Ke-Sheng
name: Feng, Tai-Fu
name: Luo, Guo-Hui
name: Yang, Xiu-Yi
name: Chen, Jian-Bin
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the lepton flavor violation processes $μ-e$ conversion, $l_i\rightarrow l_jγ$ and $l_i\rightarrow 3l_j$ in framework of the Standard Model (SM) extended with inverse seesaw mechanism, as a function of $\tildeη = 1 -|Det(\tilde {U}_{PMNS})|$ that parameterizes the departure from unitary of the light neutrino mixing sub-matrix $\tilde {U}_{PMNS}$. In a wide range of $\tildeη$, the predictions on the $μ-e$ conversion rates and the branching ratio of $μ\rightarrow eγ$ are sizeable to be compatible with the experimental upper limits or future experimental sensitivities. For large scale of $\tildeη$, the predictions on branching ratios of other lepton flavor processes can also be reach the experimental upper limits or future experimental sensitivities. The value of $\tildeη$ depends on the determinant of the Majorana mass term $M_μ$. Finally, searching for lepton flavor violation processes in experiment provides us more opportunities for the searches of seesaw nature of the neutrino masses.
description: 13 pages, 7 figures
An investigation of a GIS-based methodology for the sustainable, participative management of walking routes in Ireland
Creators: name: Farrell, Helen
Publisher: name: University of Lincoln
Year: 2023
Subjects: F800 - Physical geographical sciences
F890 - Physical geographical sciences not elsewhere classified
K422 - Rural planning
N200 - Management studies
N800 - Hospitality, leisure, sport, tourism & transport

description: This thesis has identified and tested a methodology for the sustainable planning, development, auditing and routing of Waymarked Ways (walking routes). In testing and comparing the methodology on two routes in Ireland, a range of results have been gathered. Findings suggest that the approach is appropriate and effective in managing waling routes in the context of the study and in including community participation in the management process. Two study sites with different landscapes and infrastructures and varying levels of attractiveness for walking were used during research, and they were found to be quite different in their route management procedures. The methodology employed landscape character assessments, CORINE land cover data and checklist surveys to investigate the landscape and physical conditions of the routes studied. Counts were conducted of route users, and user questionnaire surveys were conducted. Interviews with local stakeholders and focus group sessions using the GIS were conducted to assess local opinions and draw on local knowledge of the area and the walking route. The participative techniques tested for the research are offered as a means of improving route management at the local level, for improving communication between local and central management bodies and for exchanging information among all interested parties. The research recognised that community involvement is essential if walking routes are to be sustainable, and the relative lack of success and popularity of routes is believed to be influenced by a lack of interest at a local level, by the image of the area, as promoted to advertising and the media and by the landscapes that the routes pass through. Where possible, all data was stored and analysed in GIS. Main data sources were the Ordnance Survey Ireland discovery series maps, landscape character assessments, CORINE land cover layers, inventories of facilities, environmental and planning designations from the local authorities and from the heritage service and data acquired from focus group sessions, questionnaires and interviews.
title: Global Health and Care – ein neuer Wahltrack in Würzburg zur Erweiterung des Lehrangebotes im Bereich Globale Gesundheit
Creators: name: Schwienhorst-Stich, Eva-Maria
name: Geffert, Karin
name: Isberner, Nora
name: Stich, August
name: Parisi, Sandra
name: Zirkel, Janina
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung/Zielsetzung: Der zunehmende Ruf nach Internationalisierung des Medizinstudiums, die steigende Anzahl der Medizinstudierenden, die einen Teil ihrer Ausbildung im Ausland absolvieren und das zunehmende Bewusstsein für die Gesundheit beeinflussende weltweite Herausforderungen, führte[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
title: Implementation of PROFILES and NKLM into interdisciplinary and interprofessional medical curricula
Creators: name: Ahlers, Olaf
name: Waldvogel, Tuija
name: Jennebach, Jacqueline
name: Höcht, Milena
name: Goldhahn, Jörg
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Learning objective: Accreditation, standardization and development of (interprofessional) medical curricula requires mapping them to outcome frameworks. Common frameworks are roles of a physician, entrustable professional activities, catalogues of learning objectives encompassing knowledge and skills[for full text, please go to the a.m. URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
title: Effektivität proaktiven Feedbacks im Rahmen digitaler formativer Key-Feature-Prüfungen im Medizinstudium: eine randomisierte Cross-over-Studie
Creators: name: Becker, Tim
name: Goldmann, Milena
name: Raupach, Tobias
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund und Fragestellung: Klinische Entscheidungskompetenz sollte bereits während des Medizinstudiums erworben werden. An der Universitätsmedizin Göttingen nehmen Studierende seit 2013 in ausgewählten Lehrmodulen des klinischen Studienabschnitts an wöchentlichen formativen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
An investigation of bioremediation for the conservation of petroleum-contaminated stone monuments
Creators: name: Watt, David
name: Kliafa, Maria
name: Colston, Belinda
Publisher: name: University of Lincoln
Year: 2023
Subjects: C500 - Microbiology
F110 - Applied chemistry
F140 - Environmental chemistry
F200 - Materials science

description: Today, great effort is made for the protection of cultural heritage. Natural or anthropogenic factors decrease the conservation condition of the cultural artefacts, while their protection and survival mainly depends on political, financial, and technological issues. This project concerns the influence of the environmental pollution on cultural heritage and focuses on the potential effect of chronic petroleum hydrocarbon ground leakage on the subterranean parts of stone monuments. Bibliographic research revealed that there are many references to the effect of air pollution on building stone. However, research has not been expanded to the field of underground pollution in relation to the condition of the stone. Thus, the sources of petroleum pollution are presented, the paths of migration to the monument, the physical phenomena concerning the entrance of such pollution into the pores of the stone, as well as its potential movement in the porous net.The main effort was to assess the protection of a monument subjected to chronic petroleum pollution, by reducing the pollutant content of the stone. The existing methodologies on the reduction of hydrocarbon content in soil and groundwater were assessed, and criteria were set for a remediation method applicable to the treatment of the foundations of stone monuments. The method identified as most appropriate was bioventing, which is the use of air to stimulate indigenous microorganisms that have the ability to transform petroleum hydrocarbons into harmless by-products. Three types of limestone (grey-, marly-, and sandy-) were shown to be significantly weakened by a non-immiscible mixture of water and petroleum hydrocarbons when present in the pores of the stone.The bioventing treatment was shown to reduce the hydrocarbon content of the stone by 75% after a 60 day treatment. The rate of biodegradation achieved was 30 times higher than when no treatment was administered. Recommendations on future management and conservation policies of stone monuments are given.
title: Video-based interactive Performance Examination (ViPE): Erfahrungen und Ergebnisse mit einer formativen E-Prüfung zur Messung ärztlicher kommunikativer Kompetenzen bei Medizinstudierenden (digi-Role Projekt)
Creators: name: Fischbeck, Sabine Ingrid
name: Schneider, Stephanie
name: Behling, Lina
name: Petrowski, Katja
name: Schmidt, Uwe
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Zielsetzung: Im Rahmen des BMBF-Projekts „Digitales Prüfungstool zur Messung kommunikativer Fertigkeiten im Medizinstudium (digi-Role)“ wurden zwei Formen von videobasierten E-Prüfungen mit dem Ziel entwickelt, eine möglichst ökonomische Messung ärztlicher kommunikativer[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
title: ePOL-Angebote zur Patientensicherheit – Ergebnisse aus der Erprobung von zwei Pilotmodulen
Creators: name: Götz, Nina-Alexandra
name: Mansholt, Hilke
name: Babitsch, Birgit
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung/Zielsetzung: Im Rahmen des Projektes „Gestaltungskompetenz als Innovator für hochzuverlässige Organisationen im Gesundheitssystem“ (GIO) wurde eine interaktive Lernumgebung für Gesundheitsfachkräfte im Krankenhaus auf der Lernplatform Moodle entwickelt.[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
Closed equations of the two-point functions for tensorial group field theory
Creators: name: Samary, Dine Ousmane
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: High Energy Physics - Theory, Mathematical Physics

description: In this paper we provide the closed equations that satisfy two-point correlation functions of the rank 3 and 4 tensorial group field theory. The formulation of the present problem extends the method used by Grosse and Wulkenhaar in [arXiv 0909.1389] to the tensor case. Ward-Takahashi identities and Schwinger-Dyson equations are combined to establish a nonlinear integral equation for the two-point functions. In the 3D case the solution of this equation is given perturbatively at second order of the coupling constant.
description: 28 pages, 12 figures
Electron-Phonon Spectral Density of MgB2 from Optical Data, through Maximum Entropy
Creators: name: Hwang, Jungseek
name: Carbotte, J. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We use maximum entropy techniques to extract an electron-phonon density from optical data in the normal state at T = 45 K in MgB2. Limiting the analysis to a range of phonon energies below 110 meV which is sufficient to capture all phonon structures we find a spectral function which is in good agreement with that calculated for the quasi two-dimensional sigma-band. Extending the analysis to higher energies up to 160 meV we find no evidence for any additional contributions to the fluctuation spectrum but find that the data can only be understood if the density of states is taken to decrease with increasing energy.
description: 12 pages, 4 figures
title: Mitentwickeln statt absolvieren – ein Wahlfachkonzept jenseits klassischer Medizin-Klischees
Creators: name: Heindl, Felix
name: Grab-Kroll, Claudia
name: Diedrich, Johanna
name: Schmid, Christina
name: Öchsner, Wolfgang
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Zielsetzung: Medizin gilt als lernintensives und überwiegend rezeptives Studienfach. Auch im Wahlfachbereich wird meist nach dem klassischen "Lehrer-Schüler-Prinzip“ unterrichtet, in dem Lehrende überwiegend agieren und Studierende meist nur passiv rezipieren. Eine Alternative[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
Load Balancing using Ant Colony in Cloud Computing
Creators: name: Kumar, Ranjan
name: Sahoo, G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Computers and Society (cs.CY)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Ants are very small insects.They are capable to find food even they are complete blind. The ants lives in their nest and their job is to search food while they get hungry. We are not interested in their living style, such as how they live, how they sleep. But we are interested in how they search for food, and how they find the shortest path. The technique for finding the shortest path are now applying in cloud computing. The Ant Colony approach towards Cloud Computing gives better performance.
description: 5 pages, 1 figure, 1 table
title: Ein Inverted-Classroom Konzept im Querschnittsbereich Gesundheitssysteme, -ökonomie und öffentliche Gesundheitspflege. Lernen aus Fehlern durch Gruppendiskussionen und moderierten Austausch mit KommilitonInnen
Creators: name: Huber, Johanna
name: Witti, Matthias
name: Bischoff, Thomas
name: Wershofen, Birgit
name: Schunk, Michaela
name: Braun, Martina
name: Fischer, Martin Rudolf
name: Tolks, Daniel
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung/Zielsetzung: Seit 2014 wurde in den Fächern Gesundheitssysteme -ökonomie und öffentliche Gesundheitspflege (GGG) ein neu konzipiertes, fallbasiertes Seminar erfolgreich implementiert [ref:1]. Das Seminar 2 „Der einsame Patient“ basiert auf dem[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
title: Der Einsatz von Augmented Reality zur Festigung von Basisfertigkeiten für die minimalinvasive laparoskopische Chirurgie
Creators: name: Joswig, Matthias
name: Achenbach, Jannis
name: Jessen, Julia
name: Steubing, Yonca
name: Siewert, Jan Luca
name: Wolf, Mario
name: Schäfer, Thorsten
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung/Zielsetzung: Für das Training von Basisfertigkeiten für die minimalinvasive laparoskopische Chirurgie kommen in der medizinischen Ausbildung vermehrt Simulatoren zum Einsatz. Dabei existieren bereits verschiedene validierte und standardisierte Moduleinheiten, in denen Koordination,[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
Extended Star Clusters in NGC 1023 from HST/ACS Mosaic Imaging
Creators: name: Forbes, Duncan
name: Almeida, Andres
name: Spitler, Lee
name: Pota, Vincenzo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Faint fuzzies are a relatively new class of star cluster, first found in the nearby S0 galaxy NGC 1023 by Larsen & Brodie using WFPC2 images from the Hubble Space Telescope (HST). Here we investigate the star cluster system of NGC 1023 using an eight pointing mosaic of ACS images from HST. We identify blue and red normal globular clusters (two of which are particularly luminous and dense) and two ultra compact dwarf objects (with effective radius ~10 pc). With our more complete spatial coverage, we also find 81 red and 27 blue faint fuzzies (FFs). We confirm the association of the red FFs with the disk of NGC 1023, consistent with them being long-lived open clusters. Half of the blue FFs appear to be associated with the dwarf satellite galaxy NGC 1023A (which was largely absent from the original HST/WFPC2 coverage), while the remainder are spatially coincident with the densest HI gas that surrounds NGC 1023. The blue FFs have colours that are consistent with young (few 100 Myr old) star clusters that formed during the most recent interaction between NGC 1023 and its satellite NGC 1023A.
description: 5 pages, 4 figures, accepted for publication in MNRAS
The effect of barium hydroxide on the physicochemical properties of lime-based conservation mortars
Creators: name: Watt, David
name: Karatasios, Ioannis
name: Colston, Belinda
Publisher: name: University of Lincoln
Year: 2023
Subjects: F110 - Applied chemistry
F200 - Materials science

description: The research undertaken concerns the analysis of original Byzantine mortars and the study of new compatible lime-based mixtures, for conservation purposes, which present enhanced resistance to sulphates. The thesis focuses on the effect of barium hydroxide, as an additive, to both the physicochemical properties and the durability of conservation mortars.Both binary pastes and mortar mixtures, containing varying amounts of barium hydroxide, were prepared and their physicochemical properties and durability determined. Comparisons were made with a reference mixture containing no barium hydroxide. The laboratory mixtures were synthesised according to the analysis of original mortars, collected from six different Byzantine mosaic pavements. The durability of the mortar mixtures against sulphate action was studied through the use of accelerated aging tests: crystallisation of soluble salts; electrochemical degradation; sulphate fixation; and resistance to leaching of cementing material. The results of these tests were considered together with the physical properties of the mortars, since these also influence their durability.From the interpretation of the results it was shown that the setting of lime-based barium mixtures can be described by two mechanisms; the carbonation process of calcium hydroxide and barium hydroxide; and the precipitation of a barium calcium carbonate [BaCa(CO3)2] solid solution. It has been shown that the presence of barium hydroxide in lime-based mortars has a physical effect on the pore space characteristics of the mortar. It has also been shown that its presence improves the durability of the mortar, playing a protective role against sulphate attack.
title: Bedarfsanalyse E-Learning – die Perspektive der Stakeholder
Creators: name: Lehmann, Jasmin
name: Schafnitzel, Robert
name: Bunk, Matthias
name: Heindl, Felix
name: Schneider, Achim
name: Grab-Kroll, Claudia
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung: Dauerhaft können universitäre Einrichtungen wie das Kompetenzzentrum eEducation nur erfolgreich sein, wenn sie ihre Schwerpunkte kontinuierlich an die Bedürfnisse ihrer Stakeholder anpassen, interessante Themen frühzeitig erkennen und innovative Formate konzipieren.[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
MPEC 2023-P17 : 2023 OE6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 OE6

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
title: Der Einsatz eines Augmented Reality Lehr-/Lernkonzeptes in der hochschulischen Hebammenausbildung
Creators: name: Lewa, Carmen
name: Joswig, Matthias
name: Luksch, Kristina
name: Blattgerste, Jonas
name: Pfeiffer, Thies
name: Bauer, Nicola H.
name: Bernloehr, Annette
name: Schäfer, Thorsten
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung/Zielsetzung: Im Rahmen des durch das vom Bundesministerium für Bildung und Forschung geförderten Projektes „Augmented Reality gestütztes Lernen in der hochschulischen Hebammenausbildung - Heb@AR“ wird für den Studiengang Hebammenkunde ein vollständiges[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
Order, Chaos and Quasi Symmetries in a First-Order Quantum Phase Transition
Creators: name: Leviatan, A.
name: Macek, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the competing order and chaos in a first-order quantum phase transition with a high barrier. The boson model Hamiltonian employed, interpolates between its U(5) (spherical) and SU(3) (deformed) limits. A classical analysis reveals regular (chaotic) dynamics at low (higher) energy in the spherical region, coexisting with a robustly regular dynamics in the deformed region. A quantum analysis discloses, amidst a complicated environment, persisting regular multiplets of states associated with partial U(5) and quasi SU(3) dynamical symmetries.
description: 16 pages, 7 figures, talk at Symposium "Symmetries in Science XVI", July 21 - 26, 2013, Bregenz, Austria. Higher quality (larger size) figures can be obtained from http://www-ucjf.troja.mff.cuni.cz/~geometric/Figs2-3-4_HighRes.zip
title: Entwicklung und Umsetzung einer online-gestützten Lernumgebung für Mitarbeitende in der Gesundheitsversorgung zur Kompetenzentwicklung im Bereich Patientensicherheit
Creators: name: Mansholt, Hilke
name: Götz, Nina-Alexandra
name: Babitsch, Birgit
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung/Zielsetzung: Im Rahmen des Forschungsprojekts GIO sollen Krankenhäuser befähigt werden, ihre Sicherheitskultur im Sinne einer „Hochzuverlässigen Organisationen“ (HRO) [ref:1] zu erhöhen. Hierzu wurde ein umfassender Basiskompetenzkatalog[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
MPEC 2023-P18 : 2023 OF6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 OF6

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
New self dualities and duality cascades
Creators: name: Hook, Anson
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: New self-dualities involving two index tensors are derived. These new self-dualities are used to build various duality cascades. Both vector like and chiral cascades are presented. Aside from ending in confinement, these duality cascades can also end in interacting conformal field theories, free field theories, and meta-stable supersymmetry breaking. Higgsing effects are built into the self-duality so that when the gauge groups are small enough, supersymmetry is broken through the rank condition. Dynamical supersymmetry restoration occurs far from the SUSY breaking vacuum resulting in a long lived meta-stable vacuum. It is found that Coulomb branches are critical in the stabilization of runaways and dynamical supersymmetry restoration.
description: 17 pages + appendix
title: Sind empathische Arzt-Patienten-Gespräche mittels Telemedizin möglich? Welche Qualifikationsmaßnahmen sind hierfür erforderlich? Erprobung von telemedizinischer Versorgung in belastenden Gesprächssituationen
Creators: name: Merse, Stefanie
name: Kamisli, Caner
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung/Zielsetzung: Durch die Förderung der Telemedizin sind Erstgespräche ohne direkten Arzt-Patienten-Kontakt möglich (MBO-Ä 1997, in der Fassung von 2018). Im Rahmen der Anamnese lassen sich emotional belastende Situationen nicht immer vermeiden. Solche Situationen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
Reductive destruction of chlorinated organics in molten salt
Creators: name: Lightfoot, Ian Peter
name: Dahm, R
name: Colston, Belinda
Publisher: name: University of Lincoln
Year: 2023
Subjects: F100 - Chemistry
F160 - Organic chemistry
F162 - Polymer chemistry

description: The destruction of hazardous chemicals, and in particular halogenated compounds, has become of significant interest in the last twenty years, as public awareness of Green issues has become more prominant. This work investigates the use of the DuPont process, for the non-oxidative destruction of organohalogens, as an alternative method of disposal for these environmentally hazardous compounds.A small-scale bath was constructed for the generation of a 2% sodium hydride solution in molten sodium hydroxide, by the reaction of hydrogen and metallic sodium. A variety of different halogenated compounds, both aliphatic and aromatic, were immersed in the molten salt of interest, along with respective non-halogenated analogues. The reaction products were analysed using a variety of different analytical techniques including FTIR, IC, GC and GCMS. By identifying these reaction products, possible reaction mechanisms have been postulated.For PVC, it is shown that the immersed polymer undergoes some form of base-accelerated thermal degradation, whilst the immersion of 4-chlorostyrene and poly-4-chlorostyrene apparently leads to an elimination-addition reaction. This results in the formation of the dechlorinated monomer, styrene, which then undergoes further reduction, giving ethyl benzene.The immersion of volatile halogenated compounds, such as chlorobenzene, leads to nucleophilic substitution. However, the presence of the hydride ion is shown to be essential, as the substitution reaction is in competition with volatilisation: no substitution is observed in molten sodium hydroxide alone. The rate of nucleophilic substitution in the presence of hydride is comparable to the rate of volatilisation, resulting in only 50% dechlorination. With non-volatile compounds, 100% dechlorination is observed in both the presence and absence of the hydride ion. However, the rate of dechlorination is significantly faster when the hydride ion is present.The ability of the 2% sodium hydride bath to dechlorinate poly-halogenated compounds is of particular interest, as the DuPont process could be used for the destruction of the more hazardous halogenated compounds such as PCBs and dioxins. Furthermore, due to the non-oxidative properties of the molten salt, no chlorinated gaseous products are observed, including HCl. This would be of major benefit to a method of disposal for halogenated hydrocarbons.
Preventive conservation for paper-based collections within historic buildings
Creators: name: Buelow, Anna
name: Watt, David
name: Colston, Belinda
Publisher: name: University of Lincoln
Year: 2023
Subjects: F140 - Environmental chemistry
K250 - Conservation of buildings
W160 - Fine art conservation

description: Previous research has been carried out concerning the conservation of both historic buildings and library and archive collections. Little work has, however, been undertaken to look at the interface between the two. The following research has been carried out in the context of an interdisciplinary project linking key disciplines in an examination of the issues relating to conservation problems in historic buildings used for library and archive purposes.This thesis presents a comprehensive literature review, evaluating published data on both the preservation of paper-based collections in libraries and archives, and preventive conservation of historic buildings and monuments. Emphasis is given to the interface between the two. Furthermore, a survey of British archives and libraries has been carried out, including the evaluation of questionnaire and site data. The survey focuses on preventive conservation measures as well as past and present problems of dampness. This survey proved problems with dampness to be often misdiagnosed and the consequences of damage underestimated. From the surveyed collections, two case studies have been selected for environmental monitoring in order to investigate macro- and micro-climates under different environmental conditions. Resulting data suggest that the micro-environment of a confined space is influenced by the amount of paper housed within it. This has assisted in explainig the interaction between paper and the immediate environment. At the same time, data has confirmed that the overall surface area of paper available for environmental interaction is more important than paper type or book size, with respect to the overall conditions within the storage space. Although degradation mechanisms of paper with respect to cyclic conditions are not entirely clear, results of this study emphasise the importance of ventilation and dehumidification in order to avoid mould germination and/or growth.The data have been used to determine whether the internal environment of enclosed bookcases, and hence the immediate environment of the collection, can be adequately predicted from ambient data taken within the room. Mathematical models have been developed for both metal and wooden bookcases, and have shown that even when ambient conditions are unstable, the relationship between ambient RH and the RH inside a book in an enclosed bookcase can be predicted within 5% margin (1% for a stable environment).
title: Digitalisierte Bildung im Gesundheitswesen: Interaktionsanalysen im virtuellen Klassenzimmer mit Studierenden und in Webinaren mit Medizinischen Fachangestellten (MFAs)
Creators: name: Nitsche, Julia
name: Zupanic, Michaela
name: Trübel, Hubert
name: Kernebeck, Sven
name: Ehlers, Jan  P.
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Zielsetzung: Die digitale Transformation verändert die Bildung im Gesundheitswesen. Es ist wichtig, Lernende in der Erwachsenenbildung inhaltlich und methodisch fachübergreifend darauf vorzubereiten. Seit 2016 bietet die Universität Witten/Herdecke (UW/H) Studierenden aus allen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
title: Projektvorstellung: imppACT (IMPP automatic classification tool) – Wege zur automatischen und domänenspezifischen Klassierung von med. Prüfungsfragen und zur Generierung von fakultätsspezifischem Feedback
Creators: name: Núñez, Alexandra
name: Lindner, Marcus
name: Schlasius-Ratter, Ute
name: Hinding, Barbara
name: Schillings, Volker
name: Jünger, Jana
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung/Zielsetzung: Künstliche Intelligenz (KI) wird in der Medizin bereits zu diagnostischen und chirurgischen Zwecken eingesetzt. In der med. Ausbildung ist der Einsatz von KI mit Fokus auf med. Prüfungen jedoch ein Desiderat. Wir haben uns auf das MC-Fragen Prüfungsformat[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
Ferroic Berry Curvature Dipole in a Topological Crystalline Insulator at Room Temperature
Creators: name: Nishijima, T.
name: Watanabe, T.
name: Sekiguchi, H.
name: Ando, Y.
name: Shigematsu, E.
name: Ohshima, R.
name: Kuroda, S.
name: Shiraishi, M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The physics related to Berry curvature is now a central research topic in condensed matter physics. The Berry curvature dipole (BCD) is a significant and intriguing condensed matter phenomenon that involves inversion symmetry breaking. However, the creation and controllability of BCDs have so far been limited to far below room temperature (RT) and non-volatile (i.e., ferroic) BCDs have not yet been discovered, hindering further progress in topological physics. In this work, we demonstrate a switchable and non-volatile BCD effect at RT in a topological crystalline insulator, Pb1-xSnxTe (PST), which is attributed to ferroic distortion. Surprisingly, the magnitude of the ferroic BCD is several orders of magnitude greater than that of the non-ferroic BCDs that appear, for example, in transition metal dichalcogenides. The discovery of this ferroic and extraordinarily large BCD in PST could pave the way for further progress in topological material science and the engineering of novel topological devices.
description: 23 pages, 3 figures
Dirac particles' tunnelling from 5-dimensional rotating black strings influenced by the generalized uncertainty principle
Creators: name: Chen, Deyou
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The standard Hawking formula predicts the complete evaporation of black holes. Taking into account effects of quantum gravity, we investigate fermions' tunnelling from a 5-dimensional rotating black string. The temperature is determined not only by the string, but also affected by the quantum number of the emitted fermion and the effect of the extra spatial dimension. The quantum correction slows down the increase of the temperature, which naturally leads to the remnant in the evaporation.
description: 11pages
From 'truth in strength to strength in truth': sociology, knowledge and power in Kyrgyzstan, 1966-2003
Creators: name: Amsler, Sarah
Publisher: name: University of Lincoln
Year: 2023
Subjects: L243 - Politics of a specific country/region
L990 - Social studies not elsewhere classified
X342 - Academic studies in higher education

description: This doctoral thesis emerged from the in-depth study of the politics of social scientific knowledge in Kyrgyzstan and its relationship to political economies and social imaginaries from the Soviet to the early post-Soviet periods.LONG SUMMARY This dissertation is a study in the critical sociology of social scientific knowledge. It explores the construction of sociology as a field of knowledge, academic discipline and professional practice in Kyrgyzstan (formerly the Kirgiz Soviet Socialist Republic) from 1966 to 2003, focusing on the late- and post-socialist project to transform sociology from a heteronomous field of knowledge and practice into an autonomous one. It analyses both historically and through contemporary case studies how the dialectical relationship between social scientific knowledge and socio-political power has shaped successive efforts to institutionalise sociology in Kyrgyzstan, why particular varieties of sociological theorising and research have emerged within contemporary Kyrgyzstani sociology, and what implications this has for sociology’s role in society. By demonstrating how Kyrgyzstani sociologists have employed ‘boundary–work’ in their efforts to institutionalise the discipline, this dissertation reveals the localised processes by which sociology actually became identified with scientific politics and integrated into the exercise of political power during both the both Soviet and post-Soviet periods. Based on the case study results, it argues that while many obstacles to the institutionalisation of the discipline as an autonomous field of knowledge and practice are created by structural constraints, they are also the result of non-material factors, particularly the ways in which the nature and role of sociology, as well as the meaning of its reform or ‘transition,’ have been conceptualised and articulated by Kyrgyzstani sociologists themselves. Finally, it reveals fundamental contradictions in the overall institutionalisation project, specifically, the simultaneous pursuit of competing goals to separate the production of sociological knowledge from the logic of political power in order to establish scientific legitimacy, and associate its application with the logic of power to promote the discipline’s social relevance. The dissertation concludes that while in combination both projects may open possibilities for sociology to become a truly radical and practical profession in post-Soviet Kyrgyzstan, this can only be achieved if Kyrgyzstani sociologists reconsider the philosophies of scientific knowledge with which they operate, and if inequalities in the structural conditions and organisation of sociology in the republic are redressed.
title: Der Weg zur virtuellen Realität: Empfehlungen für die Implementierung von VR in der medizinischen Lehre
Creators: name: Schafnitzel, Robert
name: Bunk, Matthias
name: Lehmann, Jasmin
name: Heindl, Felix
name: Öchsner, Wolfgang
name: Grab-Kroll, Claudia
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung/Zielsetzung: In den nächsten fünf Jahren soll Virtual Reality (VR) allein in Deutschland 11 Milliarden Euro zusätzlich zum Bruttoinlandsprodukt beitragen [ref:1]. Das Gesundheitswesen hat bei dieser Schätzung einen bedeutenden Anteil, da die Technologie[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
A unified phase transition picture of the charged topological black hole in Horava-Lifshitz gravity
Creators: name: Mo, Jie-Xiong
name: Zeng, Xiao-Xiong
name: Li, Gu-Qiang
name: Jiang, Xin
name: Liu, Wen-Biao
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Aiming at a unified phase transition picture of the charged topological black hole in Hořava-Lifshitz gravity, we investigate this issue not only in canonical ensemble with the fixed charge case but also in grand-canonical ensemble with the fixed potential case. We firstly perform the standard analysis of the specific heat, the free energy and the Gibbs potential, and then study its geometrothermodynamics. It is shown that the local phase transition points not only witness the divergence of the specific heat, but also witness the minimum temperature and the maximum free energy or Gibbs potential. They also witness the divergence of the corresponding thermodynamic scalar curvature. No matter which ensemble is chosen, the metric constructed can successfully produce the behavior of the thermodynamic interaction and phase transition structure while other metrics failed to predict the phase transition point of the charged topological black hole in former literature. In grand-canonical ensemble, we have discovered the phase transition which has not been reported before. It is similar to the canonical ensemble in which the phase transition only takes place when $k=-1$. But it also has its unique characteristics that the location of the phase transition point depends on the value of potential, which is different from the canonical ensemble where the phase transition point is independent of the parameters. After an analytical check of Ehrenfest scheme, we find that the new phase transition is a second order one. It is also found that the thermodynamics of the black hole in Horava-Lifshitz gravity is quite different from that in Einstein gravity.
description: 24pages,11figures
The emotional enhancement of memory: encoding and retrieval effects
Creators: name: Chipchase, Susan
Publisher: name: University of Lincoln
Year: 2023
Subjects: C800 - Psychology
C850 - Cognitive & affective psychology

description: The influence of emotion on memory and the role of encoding and retrieval effects were examined in a series of 10 experiments. Retrieval effects were examined in the first 3 experiments by investigating the success of different memory retrieval strategies. Positive emotional enhancement of recognition was found in traditional two-alternative forced-choice recognition and a task which encouraged a nonanalytic retrieval strategy. No emotional enhancement of memory was found in a task which encouraged an analytic retrieval strategy or when a Remember / Know / Guess judgement followed recognition. The paradigm was adapted to a within-participants design but emotional enhancements of recognition were no longer found. The next 7 experiments explored encoding effects with a paradigm investigating visual specificity of memory. Participants identified whether pictures were Same / Similar / New (SSN) in comparison to those shown at study. The findings from the SSN and Remember / Know / New paradigm were compared, with negative emotional enhancement of memory found in both. Negative and positive emotional enhancement of memory for specific visual details was found, with a central-peripheral trade-off in memory with negative emotion when objects were presented on congruent neutral backgrounds. Eye movements were recorded at encoding to examine attentional effects. Attentional narrowing was found on scenes with a negative object but no attentional effects were found with positive emotion. In the last 3 experiments associative memory, implicit memory, distinctiveness of emotional stimuli and warnings of emotion were measured and manipulated but could not account for the memory effects. Surprisingly, the emotional memory effects remained even when stimuli were blocked into emotional groups radically altering the distribution of visual attention. The implications of the results for choice of experimental stimuli, task instructions in experimental paradigms and the memory processes of encoding and retrieval are discussed.
Heterogeneous Graph Contrastive Learning for Recommendation
Creators: name: Chen, Mengru
name: Huang, Chao
name: Xia, Lianghao
name: Wei, Wei
name: Xu, Yong
name: Luo, Ronghua
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Graph Neural Networks (GNNs) have become powerful tools in modeling graph-structured data in recommender systems. However, real-life recommendation scenarios usually involve heterogeneous relationships (e.g., social-aware user influence, knowledge-aware item dependency) which contains fruitful information to enhance the user preference learning. In this paper, we study the problem of heterogeneous graph-enhanced relational learning for recommendation. Recently, contrastive self-supervised learning has become successful in recommendation. In light of this, we propose a Heterogeneous Graph Contrastive Learning (HGCL), which is able to incorporate heterogeneous relational semantics into the user-item interaction modeling with contrastive learning-enhanced knowledge transfer across different views. However, the influence of heterogeneous side information on interactions may vary by users and items. To move this idea forward, we enhance our heterogeneous graph contrastive learning with meta networks to allow the personalized knowledge transformer with adaptive contrastive augmentation. The experimental results on three real-world datasets demonstrate the superiority of HGCL over state-of-the-art recommendation methods. Through ablation study, key components in HGCL method are validated to benefit the recommendation performance improvement. The source code of the model implementation is available at the link https://github.com/HKUDS/HGCL.
description: This paper has been published as a full paper at WSDM 2023
title: Wundkompetenzen praktisch und digital erlernen
Creators: name: Schlupeck, Mischa
name: Bergendahl, Lukas
name: Werner, Felix
name: Schmidt, Anita
name: Erfurt-Berge, Cornelia
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung/Zielsetzung: In Deutschland leiden Schätzungen zufolge eine Million Menschen unter chronischen Wunden. Trotzdem ist die Wundversorgung bislang kaum Gegenstand der ärztlichen Ausbildung, was sich zum Teil auch in einer diagnostischen und therapeutischen Unterversorgung dieser[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
Measurement of the Kerr nonlinear refractive index of Cs vapor
Creators: name: Araújo, Michelle O.
name: Cavalcante, Hugo L. D. de S.
name: Oriá, Marcos
name: Chevrollier, Martine
name: de Silans, Thierry Passerat
name: Castro, Romeu
name: Moretti, Danieverton
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Atomic vapors are systems well suited for nonlinear optics studies but very few direct measurements of their nonlinear refractive index have been reported. Here we use the z-scan technique to measure the Kerr coefficient, $n_2$, for a Cs vapor. Our results are analyzed through a four-level model, and we show that coherence between excited levels as well as cross-population effects contribute to the Kerr-nonlinearity.
description: 16 pages, 5 figures
title: Können in einem Blended-Learning-Studiengang mit über 90% Online-Anteil über das Fachwissen hinausgehende Kompetenzen erworben werden?
Creators: name: Schmidt-Straßburger, Uta
name: Schomacher, Markus
name: Grab-Kroll, Claudia
Publisher: name: German Medical Science GMS Publishing House
Year: 2020
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Der akkreditierte englischsprachige Weiterbildungsstudiengang Advanced Oncology basiert auf einem Blended-Learning-Konzept mit 90% Online-Anteil und 10% Präsenzanteil. Während der Online-Phasen werden Kenntnisse über didaktische Videos vermittelt und die Wissensvermittlung[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA)
MPEC 2023-P19 : 2023 OG6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 OG6

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.