cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Vorhersage von CISPR 25 Antennenmessergebnissen unter 30 MHz auf Basis von Nahfeldmessdaten
Creators: name: Chen, Zongyi
name: Rinas, Denis
name: Frei, Stephan
Publisher: name: Aachen : Apprimus
Year: 2016
Subjects: subject: CISPR
subject: Antenne
subject: Messung
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Kfz-Komponenten müssen Emissionsprüfungen bestehen, bevor sie auf den Markt kommen. Im Kfz-Umfeld wird oft die Antennenmessung nach CISPR-25 [1] verwendet. Ein typischer Testaufbau für die Frequenz unterhalb von 30 MHz wird in Abbildung 1.1(a) gezeigt. Dieser besteht aus einem metallischen Tisch und einem 1,5 langen Kabelbündel, welches das EUT mit der Peripherie zum Betrieb verbindet, und einer Empfangsantenne (1 m Stabantenne). Die Antenne wird in 1 m Abstand zum Zentrum des Kabelbündels platziert und ist aufgrund des Impedanzwandlers im Fußpunkt besonders gegenüber E-Feldern empfindlich. Der Test wird in einer geschirmten Absorberkammer durchgeführt, die sehr teuer und platzaufwendig ist und nicht immer in allen Laboren und Unternehmen zu Verfügung steht. Alternativen werden in [2-6] diskutiert. In [2] wird ein SPICE-Modell zur Berechnung von Strömen in der Konfiguration vorgestellt. Die ermittelten Ströme werden für ein Dipolabstrahlmodell verwendet. Damit ist die Vorhersage von Feldmaxima in einem Frequenzbereich zwischen 60 MHz bis 1 GHz möglich. Jedoch funktioniert diese Methode nicht zuverlässig unterhalb von 60 MHz. In [3, 5, 6] wird ein Strom-Scan basiertes Verfahren vorgestellt, welches mittels einer Stromsonde an verschiedenen Positionen entlang eines Kabelbündels die Stromverteilung aufnimmt und mit einem Multi-Dipolmodell Emissionen von 30 MHz bis 1 GHz vorhersagt. Bei niedrigen Frequenzen ist das Verfahren sehr empfindlich gegenüber der Phasenverteilung im Kabel [6]. Zur Lösung dieses Problems wird in dieser Arbeit eine alternative Methode zur Emissionsvorhersage auf Basis von Nahfeld-Messungen vorgeschlagen. NahfeldMessungen sind nur geringfügig durch die Messumgebung beeinflusst und minimieren die Einkopplung von benachbarten strahlenden Strukturen. Sie stellen außerdem mehr Informationen über die zu untersuchende Struktur zur Verfügung. In [7] und [8] wurde das Huygenssche Prinzip theoretisch für einen CISPR-25 Testaufbau durch Verwendung einer geschlossenen Huygens Oberfläche angewendet. Im Unterschied dazu verwendet das hier vorgeschlagene Verfahren eine nicht geschlossene Huygenssche Oberfläche (Abbildung 1.1(b)). Das vertikale elektrische Feld (Ez) wird an mehreren Punkten mit einer E-Feldsonde entlang der Randlinie der Huygensschen Oberfläche gemessen, die den Abschluss zu dem leitfähigen Messtisch bildet. Die entlang der Randlinie gemessenen Feldwerte werden in Verbindung mit bekannten Verteilungsfunktionen zur Abschätzung von Ez auf der gesamten Huygensfläche verwendet. Das E-Feld in 1 m Abstand wird dann durch Verwendung des berechneten Flächenstroms bestimmt.
Graded quantum cluster algebras and an application to quantum Grassmannians
Creators: name: Grabowski, Jan E.
name: Launois, Stéphane
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 13F60 (Primary) 20G42, 16W35, 17B37

description: We introduce a framework for $\mathbb{Z}$-gradings on cluster algebras (and their quantum analogues) that are compatible with mutation. To do this, one chooses the degrees of the (quantum) cluster variables in an initial seed subject to a compatibility with the initial exchange matrix, and then one extends this to all cluster variables by mutation. The resulting grading has the property that every (quantum) cluster variable is homogeneous. In the quantum setting, we use this grading framework to give a construction that behaves somewhat like twisting, in that it produces a new quantum cluster algebra with the same cluster combinatorics but with different quasi-commutation relations between the cluster variables. We apply these results to show that the quantum Grassmannians admit quantum cluster algebra structures, as quantizations of the cluster algebra structures on the classical Grassmannian coordinate ring found by Scott. This is done by lifting the quantum cluster algebra structure on quantum matrices due to Geiß, Leclerc and Schröer and completes earlier work of the authors on the finite-type cases.
description: 37 pages, 7 figures
Theory of atomistic simulation of spin-transfer torque in nanomagnets
Creators: name: Tay, Tiamhock
name: Sham, L. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In spin-transfer torque (STT) for technological applications, the miniaturization of the magnet may reach the stage of requiring a fully quantum-mechanical treatment. We present an STT theory which uses the quantum macrospin ground and excited (magnon) states of the nanomagnet. This allows for energy and angular momentum exchanges between the current electron and the nano-magnet. We develop a method of magnetization dynamics simulation which captures the heating effect on the magnet by the spin-polarized current and the temperature-dependence in STT. We also discuss the magnetostatics effect on magnon scattering for ferromagnetic relaxation in a thin film. Our work demonstrates a realistic step towards simulation of quantum spin-transfer torque physics in nano-scale magnets.
description: 12 pages, 8 figures
An Architecture for Decentralised Orchestration of Web Service Workflows
Creators: name: Jaradat, Ward
name: Dearle, Alan
name: Barker, Adam
Publisher: name: arXiv
Year: 2013
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Service-oriented workflows are typically executed using a centralised orchestration approach that presents significant scalability challenges. These challenges include the consumption of network bandwidth, degradation of performance, and single-points of failure. We provide a decentralised orchestration architecture that attempts to address these challenges. Our architecture adopts a design model that permits the computation to be moved "closer" to services in a workflow. This is achieved by partitioning workflows specified using our simple dataflow language into smaller fragments, which may be sent to remote locations for execution.
description: To appear in Proceedings of the IEEE 20th International Conference on Web Services (ICWS 2013)
title: CТРАХОВАНИЕ ПРОФЕССИОНАЛЬНОЙ ОТВЕТСТВЕННОСТИ  МЕДИЦИНСКИХ РАБОТНИКОВ В РОССИИ: ПРОБЛЕМЫ  И ПЕРСПЕКТИВЫ
Creators: name: Антонова, Татьяна
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: В статье анализируются существенные условия договора страхования профессиональной ответственности, выявляются проблемы страхования профессиональной ответственности медицинских работников, показываются перспективы данного вида продукта на рынке услуг.
Wirkung von Kabelferriten oberhalb von 1GHz durch eine neue Betrachtung der elektrischen Parameter
Creators: name: Al-Hamid, Moawia
name: Leone, Marco
name: Schulze, Steffen
Publisher: name: Aachen : Apprimus
Year: 2016
Subjects: subject: Eisen
subject: Kabel
subject: Messtechnik
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Kabelferrite werden häufig auf Kabeln/Leitungen verwendet, um die Konformität elektronischer Geräte aus Sicht der EMV sicherzustellen. Bis heute verwenden Hersteller solcher Bauteile eine einfache Messprozedur, die nur einen Spezialfall für die Kabelterminierung bildet, der von dem realer Anwendungen weit entfernt ist. Die Fehlinterpretation der verringerten Dämpfung oberhalb der Frequenz mit der maximalen Impedanz wurde in [1] korrigiert. Dort wurde ein neuer Ansatz für die Charakterisierung von Kabelferriten unter Zuhilfenahme eines geschlossenen TEM Wellenleiters vorgestellt, der in einem elektrischen Ersatzschaltbild mit einem repräsentativeren Satz von Ferritparametern resultiert. Die primären Ferritparameter wurden frequenzabhängig modelliert. Erweiterte Parameter wie der Propagationskoeffizient und die Ferritimpedanz geben einen Hinweis darauf, wie das Bauteil ein Störsignal bei unterschiedlichen Frequenzen bedämpft. Es wurde beobachtet, dass sich die effektive Dämpfung von MnZnund NiZn-Ferriten bis in den Gigahertzbereich vergrößert. Das steht im Widerspruch zu der allgemeinen Interpretation der Impedanzkurven, die in den Datenblättern solcher Bauteile angegeben werden. Der in [1] entwickelte koaxiale Messadapter und der dazugehörige Auswertealgorithmus sind unter dem Aktenzeichen DE 10 2015 106 072.8 als Patent angemeldet. In diesem Beitrag wurden, basierend auf den Ergebnissen der Methode aus [1], weitere Kabelferrite charakterisiert und die Wirkung dieser Ferrite auf die gestrahlte Störemission eines generischen Prüflings näher untersucht.
Discrete symmetries and model-independent patterns of lepton mixing
Creators: name: Hernandez, D.
name: Smirnov, A. Yu.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the context of discrete flavor symmetries, we elaborate a method that allows one to obtain relations between the mixing parameters in a model-independent way. Under very general conditions, we show that flavor groups of the von Dyck type, that are not necessarily finite, determine the absolute values of the entries of one column of the mixing matrix. We apply our formalism to finite subgroups of the infinite von Dyck groups, such as the modular groups, and find cases that yield an excellent agreement with the best fit values for the mixing angles. We explore the Klein group as the residual symmetry of the neutrino sector and explain the permutation property that appears between the elements of the mixing matrix in this case.
description: 22 pages, 12 figures
title: ПРАВОВОЕ РЕГУЛИРОВАНИЕ ОБРАЩЕНИЯ  ЛЕКАРСТВЕННЫХ СРЕДСТВ
Creators: name: Антонова, Татьяна
name: Митюнова, Арина
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: В статье анализируются основные направления государственного регулирования фармацевтического рынка в Российской Федерации, рассматриваются меры административной и уголовной ответственности за правонарушения в сфере обращения лекарственных средств.
title: ОТДЕЛЬНЫЕ НАПРАВЛЕНИЯ РАЗВИТИЯ ОРГАНИЗАЦИИ РАБОТЫ ОРГАНОВ ПРОКУРАТУРЫ
Creators: name: Арсеньева, Оксана
name: Орлов, Вячеслав
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: В статье рассматриваются вопросы правовой и организационной составляющей деятельности по приему, рассмотрению и разрешению обращений граждан в органах прокуратуры, а также происходит поиск элементов совершенствований.
Generative Design In Factory Layout Planning: An Application Of Evolutionary Computing Within The Creation Of Production Logistic Concepts
Creators: name: Dannapfel, Matthias
name: Vierschilling, Sebastian Patrick
name: Losse, Stephan
name: Matzke, Oliver
Publisher: name: Hannover : publish-Ing.
Year: 2020
Subjects: subject: Generative design
subject: Multi-objective optimization
subject: Factory planning
subject: Production logistics planning
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: This paper describes the creation and application of a generative design approach in the production logistics layout concept creation as part of factory planning projects. Production systems evermore are influenced by an increase of product variants during the planning stages as well as shorter replanning cycles due to higher agility requirements to the production system. Thus, requiring the planner to more frequently conduct the highly complex planning procedure of creating layout concepts for the material supply within the assembly line. Currently, mathematical or graphical assignment methods are executed but are often used disjunct and are not used jointly. Furthermore, today’s planning methods are mainly based on manual planning and assignment activities. To address the aforementioned issues, this paper elaborates the application and usability of generative design methods for production logistics planning. As first step the scope and requirements definition for the new production logistics layout application is conducted. Afterwards, generative design, including a multi-objective genetic algorithm, is used to serve as a solution to compile and search through the high-dimensional solution space of all possible logistic layout concepts. Here, layout restrictions and production goals, such as cost and time savings, are reconciled. After the design creation and evaluation by the algorithm, the planner overviews the results and enhances the design parameters until a final concept is reached. This paper concludes with a SWOT analysis of the new planning approach to investigate the used methods, evaluate the impact of the approach on planner’s work and identify additional research potentials of using the generative design for other factory planning domains.
title: ВЗАИМОДЕЙСТВИЕ  ПРОКУРАТУРЫ  С ОРГАНАМИ МЕСТНОГО САМОУПРАВЛЕНИЯ ПРИ РЕАЛИЗАЦИИ НАДЗОРНОЙ ДЕЯТЕЛЬНОСТИ ЗА ЗАКОННОСТЬЮ ПРАВОВЫХ АКТОВ
Creators: name: Архипов, Александр
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: В статье анализируется взаимодействие органов прокуратуры с органами местного самоуправления, проблемы и пути совершенствования в рамках  осуществления надзора за законностью правовых актов.
Sparganium angustifolium Honckeny
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: E.angustifolium Honckeny Cat. 361. Bis 2750m. 3: Valsorey (Guyot); Mauvoisin (J.); Chanrion (R. Chodat); Riddes-Bieudron (J.); Val d'Heremence (J., 0. Meylan); Zermatt, höchste Stellen: Riffelsee, 2750 m (Braun-Blanquet 1919); Sumpf nördlich unter Rotenboden am Riffelberg, 2750m (Thellung 1922). - 4: Aletschwald (Schröter); Ochsenfeld im Binntal (Becherer); Rappental (B. C. W.). Var. alpinum Gaudin - 2: Montagne de Fully, zwischen den beiden Seen (J.; hierher die Angabe unter E. gracile im Cat.). - 3: Saastal: Kapellenweg bei Fee (A. Keller), Bodmen-Almagell (idem).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Experimental evidence of the influence of recurves on wave loads at vertical seawalls
Creators: name: Stagonas, Dimitris
name: Ravindar, Rajendran
name: Sriram, Venkatachalam
name: Schimmels, Stefan
Publisher: name: Basel : MDPI
Year: 2020
Subjects: subject: seawalls
subject: overtopping
subject: extremity angles (αe)
subject: recurves
subject: recurve geometry
subject: vertical seawalls
subject: wave loads and pressures
subject: pulsating andimpulsive conditions
subject: Dewey Decimal Classification::600 | Technik::690 | Hausbau, Bauhandwerk

description: The role of recurves on top of seawalls in reducing overtopping has been previously shown but their influence in the distribution and magnitude of wave-induced pressures and forces on the seawall remains largely unexplored. This paper deals with the effects of different recurve geometries on the loads acting on the vertical wall. Three geometries with different arc lengths, or extremity angles (αe), were investigated in large-scale physical model tests with regular waves, resulting in a range of pulsating (non-breaking waves) to impulsive (breaking waves) conditions at the structure. As the waves hit the seawall, the up-rushing flow is deflected seawards by the recurve and eventually, re-enters the underlying water column and interacts with the next incoming wave. The re-entering water mass is, intuitively, expected to alter the incident waves but it was found that the recurve shape does not affect wave heights significantly. For purely pulsating conditions, the influence of αe on peak pressures and forces was also negligible. In marked contrast, the mean of the maximum impulsive pressure and force peaks increased, even by a factor of more than two, with the extremity angle. While there is no clear relation between the shape of the recurve and the mean peak pressures and forces, interestingly the mean of the 10% highest forces increases gradually with αe and this effect becomes more pronounced with increasing impact intensity. © 2020 by the authors.
title: Changes in social characteristics of former council estates in the City of Canterbury since the introduction of the Right to Buy legislation
Creators: name: Xie, Aijie
Publisher: name: University of Kent
Year: 2023

description: The aim of this thesis is to explore changes in social characteristics of former council estates in the City of Canterbury, since the introduction of the Right to Buy legislation. Research on social changes related to the Right to Buy has centred on a series of issues, however, a complete account of the evolution of social characteristics in former council housing areas seems not to have been explored in the literature. For this reason, the thesis intends to trace social changes that have taken place in former council estates, and to examine the changes against the issues discussed in the literature. Data has been collected from the 1981, 1991 and 2001 UK censuses, which delineate the social characteristics in former council estates before the changes (1981), during the changes (1991) and after the changes (2001). Fifty-one social indicators have been developed to represent the social characteristics being examined. Three data matrices, one for each census, have been constructed to study social change. Multivariate analysis has been applied to the data. First of all, Principal Components Analysis (PCA) was performed to study the dimensionality of the data, which generated consistent results over the three data matrices. Secondly, Multidimensional Scaling (MDS) has been applied to study the similarities between areas in each data matrix. Property Fitting (ProFit) has been used to interpret the MDS configurations, and to help identify former council housing areas. Lastly and most importantly, Three-way Multidimensional Scaling has been adopted to study social change. The model used is INDSCAL by Carroll and Chang (1970), which generates a common space where the structure of social indicators remains constant. Areas have been represented into the common space by ProFit, in order to reveal the trend of social change over time. The results show that the changes in social characteristics of these former council housing areas are in line with the social changes discussed in the literature, i.e. the sale of council houses has resulted in the residualisation of the council housing sector, the growth of home ownership, social mix within former council estates, and gentrification-induced displacement.
Temporal and spatial expansion of a multidimensional model for electron acceleration in the bubble regime
Creators: name: Thomas, Johannes
name: Pukhov, Alexander
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: An extended analytical model for particle dynamics in fields of a highly-nonlinear plasma wake field (the bubble or blow out regime) is derived. A recently proposed piecewise model (Kostyukov et al., New J. Phys., {\bf 12}, 045009 (2010)) is generalized to include a time dependent bubble radius and full field solution in the acceleration direction. Incorporation of the cavity dynamics in the model is required to simulate the particle trapping properly. On the other hand, it is shown that the previously reported piecewise model does not reproduce the formation of a mono energetic peak in the particle spectrum. The mono energetic electron beams are recovered only when the full longitudinal field gradient is included in the model.
title: Excessive Nitrate Limits the Sustainability of Deep Compost Mulch in Organic Market Gardening
Creators: name: Ruch, Benjamin
name: Hefner, Margita
name: Sradnick, André
Publisher: name: Universität Kassel
Year: 2023
Subjects: subject: organic vegetables
subject: organic mulch
subject: no-dig
subject: no-till
subject: soil mineral N
subject: nitrate leaching
subject: denitrification
subject: 570
subject: 630
subject: Mulch
subject: Nachhaltigkeit
subject: Biologische Landwirtschaft
subject: Direktsaat
subject: Denitrifikation

description: Gefördert durch den Publikationsfonds der Universität Kassel
A weak Gordon type condition for absence of eigenvalues of one-dimensional Schrödinger operators
Creators: name: Seifert, Christian
name: Vogt, Hendrik
Publisher: name: arXiv
Year: 2013
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 34L15, 34L40, 81Q10, 81Q12

description: We study one-dimensional Schrödinger operators with complex measures as potentials and present an improved criterion for absence of eigenvalues which involves a weak local periodicity condition. The criterion leads to sharp quantitative bounds on the eigenvalues. We apply our result to quasiperiodic measures as potentials.
description: 27 pages, 1 figure
Orometric methods in bounded metric data
Creators: name: Stubbemann, Maximilian
name: Hanika, Tom
name: Stumme, Gerd
Publisher: name: Berlin ; Heidelberg : Springer
Year: 2020
Subjects: subject: information analysis
subject: celestial objects
subject: knowledge graphs
subject: large amounts
subject: metric spaces
subject: mountain peaks
subject: data handling
subject: Konferenzschrift
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: A large amount of data accommodated in knowledge graphs (KG) is metric. For example, the Wikidata KG contains a plenitude of metric facts about geographic entities like cities or celestial objects. In this paper, we propose a novel approach that transfers orometric (topographic) measures to bounded metric spaces. While these methods were originally designed to identify relevant mountain peaks on the surface of the earth, we demonstrate a notion to use them for metric data sets in general. Notably, metric sets of items enclosed in knowledge graphs. Based on this we present a method for identifying outstanding items using the transferred valuations functions isolation and prominence. Building up on this we imagine an item recommendation process. To demonstrate the relevance of the valuations for such processes, we evaluate the usefulness of isolation and prominence empirically in a machine learning setting. In particular, we find structurally relevant items in the geographic population distributions of Germany and France. © 2020, The Author(s).
title: On torsion and mixed minimal Abelian groups
Creators: name: Goldsmith, Brendan
name: O'Hogain, S
Publisher: name: Technological University of Dublin
Year: 2002

description: An abelian group is said to be minimal if it is isomorphic to all its subgroups of finite index. We obtain a complete characterisation of such groups in the torsion case; in the case of mixed groups of rank 1 we obtain a characterisation for some large classes of such groups.
Graphene as a Prototype Crystalline Membrane
Creators: name: Katsnelson, Mikhail I.
name: Fasolino, Annalisa
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The understanding of the structural and thermal properties of membranes, low-dimensional flexible systems in a space of higher dimension, is pursued in many fields from string theory to chemistry and biology. The case of a two-dimensional (2D) membrane in three dimensions is the relevant one for dealing with real materials. Traditionally, membranes are primarily discussed in the context of biological membranes and soft matter in general. The complexity of these systems hindered a realistic description of their interatomic structures based on a truly microscopic approach. Therefore, theories of membranes were developed mostly within phenomenological models. From the point of view of statistical mechanics, membranes at finite temperature are systems governed by interacting long-range fluctuations. Graphene, the first truly two-dimensional system consisting of just one layer of carbon atoms, provides a model system for the development of a microscopic description of membranes. In this Account, we review key results in the microscopic theory of structural and thermal properties of graphene and compare them with the predictions of phenomenological theories. The two approaches are in good agreement for the various scaling properties of correlation functions of atomic displacements. However, some other properties, such as the temperature dependence of the bending rigidity, cannot be understood based on phenomenological approaches. We also consider graphene at very high temperature and compare the results with existing models for two-dimensional melting. The melting of graphene presents a different scenario, and we describe that process as the decomposition of the graphene layer into entangled carbon chains.
description: 20 pages, 9 figures. Misprints are fixed and text style is changed
Epistemological and ethical aspects of time in scientific research
Creators: name: Jadreškić, Daria
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2020
Subjects: subject: scientific practice
subject: gravitational wave research
subject: translational medicine
subject: values in science
subject: speed
subject: reliability
subject: ethical implications of research
subject: wissenschaftliche Praxis
subject: Gravitationswellenforschung
subject: translationale Medizin
subject: Werte in den Wissenschaften
subject: Geschwindigkeit
subject: Zuverlässigkeit
subject: ethische Implikationen der Forschung
subject: Dewey Decimal Classification::100 | Philosophie

description: This dissertation explores the influence of time constraints on different research practices. The first two parts present case studies, which serve as a basis for discussing the epistemological and ethical implications of temporal limitations in scientific research. Part I is a case study on gravitational wave research, conducted by the LIGO Scientific Collaboration. This exemplifies fundamental research – without immediate societal applications, open-ended in terms of timeline and in terms of research goals. It is based, in part, on qualitative interviews conducted with gravitational wave physicists. I show that considerations about time and speed play a role in every stage of research: goal setting, method design, and the evaluation and communication of results. Part II provides a case study on translational medicine, an approach explicitly dedicated to accelerating research in order to develop and implement new therapies. This epitomizes applied research with high social stakes, motivated by non-epistemic goals. Here, epistemic trade-offs between speed and reliability intersect with ethical trade-offs between different types of harms. In Part III, the insights from both of these case studies are used as the basis for a more general discussion concerning the pragmatic aspects of epistemic practices, especially in relation to current debates centered on the role of values in science. A particular focus is on the value of speed and the ability to generate reliable results, either via choice of methods, or via decisions about which goals to set, as well as decisions about when to stop further testing. The primary thesis of the dissertation is that pragmatic considerations stemming from limitations of resources are a necessary feature of the pursuit of epistemic aims, and that the epistemic is thus inherently pragmatic.
Investigations of the Toxic Effect of Silver Nanoparticles on Mammalian Cell Lines
Creators: name: Sambale, Franziska
name: Wagner, S.
name: Stahl, Frank
name: Khaydarov, R.R.
name: Scheper, Thomas
name: Bahnemann, Detlef W.
Publisher: name: New York : Hindawi Publishing Corporation
Year: 2015
Subjects: subject: in-vitro cytotoxicity
subject: textile fabrics
subject: antibacterial
subject: nanosilver
subject: colloids
subject: growth
subject: ions
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Silver nanoparticles are widely used for many applications. In this study silver nanoparticles have been tested for their toxic effect on fibroblasts (NIH-3T3), on a human lung adenocarcinoma epithelial cell line (A-549), on PC-12-cells, a rat adrenal pheochromocytoma cell line, and on HEP-G2-cells, a human hepatocellular carcinoma cell line. The viability of the cells cultivated with different concentrations of silver was determined by the MTT assay, a photometric method to determine cell metabolism. Dose-response curves were extrapolated and IC50, total lethal concentration (TLC), and no observable adverse effect concentration (NOAEC) values were calculated for each cell line. As another approach, ECIS (electric-cell-substrate-impedance-sensing) an automated method to monitor cellular behavior in real-time was applied to observe cells cultivated with silver nanoparticles. To identify the type of cell death the membrane integrity was analyzed by measurements of the lactate dehydrogenase releases and by determination of the caspase 3/7 activity. To ensure that the cytotoxic effect of silver nanoparticles is not traced back to the presence of Ag+ ions in the suspension, an Ag+ salt (AgNO3) has been examined at the same concentration of Ag+ present in the silver nanoparticle suspension that is assuming that the Ag particles are completely available as Ag+ ions.
Period-index and u-invariant questions for function fields over complete discretely valued fields
Creators: name: Parimala, R.
name: Suresh, V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: Rings and Algebras, Algebraic Geometry, Number theory

description: Let K be a complete discretely valued field and F the function field of a curve over K. If the characteristic of the residue field k of K is p > 0, then we give a bound for the Brauer p-simension of F in terms of the p-rank of k. If k is a perfect field of characteristic 2, we show that the u-invaraint of F is at most 8.
Eriophorum gracile Roth
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: E. gracile Roth Cat. 361. Die Angabe «Alpe de Fully, entre les deux lacs», ist zu streichen. l: Dorenaz (Garns). - 2: «Marals Neuf» bei Saillon (Garns). - 3: Col du Tronc ob Charrat (Chenevard); Brig-Brigerberg (Hirschmann).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
title: ПРОБЛЕМЫ ИНСТИТУТА УГОЛОВНОЙ ОТВЕТСТВЕННОСТИ И УГОЛОВНОГО НАКАЗАНИЯ НЕСОВЕРШЕННОЛЕТНИХ И ПУТИ ИХ РЕШЕНИЯ
Creators: name: Афанасьева, Дарья
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: В данной статье рассматриваются некоторые проблемы, связанные с уголовной ответственностью и уголовным наказанием несовершеннолетних лиц, а также предлагаются пути решения.
Theory and simulations of air shower radio emission
Creators: name: Huege, T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A precise understanding of the radio emission from extensive air showers is of fundamental importance for the design of cosmic ray radio detectors as well as the analysis and interpretation of their data. In recent years, tremendous progress has been made in the understanding of the emission physics both in macroscopic and microscopic frameworks. A consistent picture has emerged: the emission stems mainly from time-varying transverse currents and a time-varying charge excess; in addition, Cherenkov-like compression of the emission due to the refractive index gradient in the atmosphere can lead to time-compression of the emitted pulses and thus high-frequency contributions in the signal. In this article, I discuss the evolution of the modelling in recent years, present the emission physics as it is understood today, and conclude with a description and comparison of the models currently being actively developed.
description: Proceedings of the ARENA2012 conference (Erlangen, Germany), to be published in AIP Conference Proceedings
title: Suffocation risk from small hard sugar balls
Creators: name: Bundesinstitut Für Risikobewertung
Publisher: name: Bundesbehörden und Einrichtungen im Geschäftsbereich des Bundesministeriums für Ernährung und Landwirtschaft (BMEL)
Year: 2017
Subjects: subject: 000

description: BfR-Stellungnahmen, vol. 2017, no. 025, p. 3
The formation of strong electric fields and volumetric charges in the Solar atmosphere
Creators: name: Sarsembaeva, A. T.
name: Takibayev, N. Zh.
name: Kato, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The processes occurring in the solar atmosphere are diverse and depend on many important factors. For example, from magnetic fields, their sudden changes, from emissions of substance from the depths of the Sun, distribution of shock waves and plasma jets, etc. The paper describes the model of formation of the charged volumes of gas in solar atmosphere, which is called solar "storm clouds" by analogy with terrestrial storm clouds. The model will be based on the theory ionization equilibrium and the Saha equation.
description: 14 pages, 5 figures, Advanced Studies in Theoretical Physics, Vol. 6, 2012, no. 21
An Analysis of Isgur-Wise Function of Heavy-Light Mesons within a Higher Dimensional Potential Model Approach
Creators: name: Roy, Sabyasachi
name: Choudhury, Dilip Kumar
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Nambu-Goto action for bosonic string predicts the quark-antiquark potential to be $V(r) = -\fracγ{r}+ σr + μ_0$. The coefficient $γ=\frac{π(d-2)}{24}$ is the Lüscher coefficient of the Lüscher term $\fracγ{r}$, which depends upon the space-time dimension `d'. Very recently, we have developed meson wave functions in higher dimension with this potential from higher dimensional Schrodinger equation by applying quantum mechanical perturbation technique with both $L\ddot{u}scher$ term as parent and as perturbation. In this letter, we analyze Isgur-Wise function for heavy-light mesons using these wave functions in higher dimension and make a comparative study on the status of the perturbation technique in both the cases.
Nebular emission and the Lyman continuum photon escape fraction in CALIFA early-type galaxies
Creators: name: Papaderos, P.
name: Gomes, J. M.
name: Vilchez, J. M.
name: Kehrig, C.
name: Lehnert, M. D.
name: Ziegler, B.
name: Sanchez, S. F.
name: Husemann, B.
name: Monreal-Ibero, A.
name: Garcia-Benito, R.
name: Bland-Hawthorn, J.
name: Coritjo, C.
name: de Lorenzo-Caceres, A.
name: del Olmo, A.
name: Falcon-Barroso, J.
name: Galbany, L.
name: Iglesias-Paramo, J.
name: Lopez-Sanchez, A. R.
name: Marquez, I.
name: Molla, M.
name: Mast, D.
name: van de Ven, G.
name: Wisotzki, L.
name: collaboration, the CALIFA
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use deep integral field spectroscopy data from the CALIFA survey to study the warm interstellar medium (WIM) of 32 nearby early-type galaxies (ETGs). We propose a tentative subdivision of our sample ETGs into two groups, according to their Ha equivalent width (EW) and Lyman continuum (LyC) photon escape fraction (PLF). Type i ETGs show nearly constant EWs and a PLF~0, suggesting that photoionization by post-AGB stars is the main driver of their faint extranuclear nebular emission. Type ii ETGs are characterized by very low, outwardly increasing EWs, and a PLF as large as ~0.9 in their centers. Such properties point to a low, and inwardly decreasing WIM density and/or volume filling factor. We argue that, because of extensive LyC photon leakage, emission-line luminosities and EWs are reduced in type ii ETG nuclei by at least one order of magnitude. Consequently, the line weakness of these ETGs is by itself no compelling evidence for their containing merely "weak" (sub-Eddington accreting) active galactic nuclei (AGN). In fact, LyC photon escape, which has heretofore not been considered, may constitute a key element in understanding why many ETGs with prominent signatures of AGN activity in radio continuum and/or X-ray wavelengths show only faint emission lines and weak signatures of AGN activity in their optical spectra. The LyC photon escape, in conjunction with dilution of nuclear EWs by line-of-sight integration through a triaxial stellar host, can systematically impede detection of AGN in gas-poor galaxy spheroids through optical emission-line spectroscopy. We further find that type i and ii ETGs differ little (~0.4 dex) in their mean BPT line ratios, which in both cases are characteristic of LINERs. This potentially hints at a degeneracy of the projected, luminosity-weighted BPT ratios for the specific 3D properties of the WIM in ETGs. (abridged)
description: 5 pages, 3 figures, Astronomy and Astrophysics Letters, in press
Effects of unstable stratification on ventilation in Hong Kong
Creators: name: Gronemeier, Tobias
name: Raasch, Siegfried
name: Ng, Edward
Publisher: name: Basel : MDPI AG
Year: 2017
Subjects: subject: Convective boundary layer
subject: LES (large-eddy simulations)
subject: Street-level ventilation
subject: Boundary layer flow
subject: Boundary layers
subject: Large eddy simulation
subject: Thermal stratification
subject: Air ventilation
subject: Area index
subject: Building parameters
subject: Convective boundary layers
subject: Local government
subject: Unstable conditions
subject: Vertical mixing
subject: Ventilation
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Ventilation in cities is crucial for thewell being of their inhabitants. Therefore, local governments require air ventilation assessments (AVAs) prior to the construction of new buildings. In a standard AVA, however, only neutral stratification is considered, although diabatic and particularly unstable conditions may be observed more frequently in nature. The results presented here indicate significant changes in ventilation within most of the area of Kowloon City, Hong Kong, included in the study. A new definition for calculating ventilation was introduced, and used to compare the influence of buildings on ventilation under conditions of neutral and unstable stratification. The overall ventilation increased due to enhanced vertical mixing. In the vicinity of exposed buildings, however, ventilation was weaker for unstable stratification than for neutral stratification. The influence on ventilation by building parameters, such as the plan area index, was altered when unstable stratification was considered. Consequently, differences in stratification were shown to have marked effects on ventilation estimates, which should be taken into consideration in future AVAs.
Harlan Fiske Stone with his law clerks
Publisher: name: Columbia University
Year: 2017
Subjects: subject: Law
subject: FOS: Law

description: Harlan Fiske Stone was dean of Columbia Law School from 1910 to 1924 before his appointment, first to be Attorney General of the U.S., then to the U.S. Supreme Court. Every year on the Court, Justice Stone held a dinner for his current and former law clerks, many of them graduates of Columbia Law School. Pictured in row 1: Oliver Merrill, Milton Handler, Robert Cogswell, Justice Stone, Alfred McCormack, Francis Downey, Adrian Leiby; in row 2: Warner Gardner, Howard Westwood, Herbert Wechsler, Alexis Coudert, Thomas Harris, Walter Gellhorn, Louis Lusky, Harold Leventhal, Wilbur Friedman, and Allison Dunham.
Cosmology of F(T) gravity and k-essence
Creators: name: Myrzakulov, Ratbay
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This a brief review on $F(T)$ gravity and its relation with k-essence. Modified teleparallel gravity theory with the torsion scalar has recently gained a lot of attention as a possible explanation of dark energy. We perform a thorough reconstruction analysis on the so-called $F(T)$ models, where $F(T)$ is some general function of the torsion term, and deduce the required conditions for the equivalence between of $F(T)$ models with pure kinetic k-essence models. We present a new class of models of $F(T)$-gravity and k-essence.
description: 21 pages
Spin Transfer of Quantum Information between Majorana Modes and a Resonator
Creators: name: Kovalev, Alexey A.
name: De, Amrit
name: Shtengel, Kirill
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show that resonant coupling and entanglement between a mechanical resonator and majorana bound states can be achieved via spin currents in a 1D quantum wire with strong spin-orbit interactions. The bound states induced by vibrating and stationary magnets can hybridize thus resulting in spin-current induced $4π$-periodic torque, as a function of the relative field angle, acting on the resonator. We study the feasibility of detecting and manipulating majorana bound states with the use of magnetic resonance force microscopy techniques.
description: 4 pages and supplementary material; 4 figures
title: Investigating shock metamorphism features in feldspar
Creators: name: Riches, Liza
Publisher: name: University of Glasgow
Year: 2023

description: Hypervelocity impact cratering processes are of key importance for the understanding of planetary formation and evolution in our Solar System. The investigation of shock deformation features within impact craters is therefore an invaluable practice that should help in the future identification of impact sites, as well as the general field of planetary materials. Due to the high abundance of feldspar group minerals on planetary surfaces, the study of shock metamorphism in feldspars is crucial. Shock barometry is the process by which certain diagnostic features can be used to determine the level of shock experienced within a mineral and therefore determine the shock conditions experienced by those minerals. The identification of diagnostic shock microstructure features has often focused on studying quartz using a polarising microscope. However, this thesis has instead investigated the use of feldspar, searching for shock features using a range of microanalytical techniques. This thesis has studied samples from the Chicxulub Impact Structure in the Yucatan Peninsula, Mexico using an optical microscope, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), backscatter electron images (BSE), electron backscatter diffraction (EBSD), cathodoluminescence (CL) and electron probe micro-analysis (EPMA) to identify shock deformation features in feldspar and investigate any connection between deformation features and chemical content. This thesis has several key findings. 1. No shock attenuation was observed over the depth interval that these samples covered (55.8m). 2. Typically, more deformation was observed in Na-rich feldspar than K-rich feldspar. 3. The Ca content within Na-rich feldspar was found to have been influenced by deformation within twins. EBSD maps identified deformation features within feldspar twins, specifically, partial amorphisation in alternating twins. These partially amorphised twins contained ~1-2 at. % less Ca than crystalline twins. Previous research has not always recorded chemical content of feldspars in enough detail to determine if these observations are present in other locations. With further and closer examination of feldspar minerals of various chemical compositions and different impact sites, it is possible that a more exact and detailed shock barometer for feldspar could be made in the future. Finally, it has proven useful in this thesis to use multiple methods of analysis to provide more successful identification of shock deformation features, which is recommended in future when developing shock barometry in feldspars.
Demystification: how librarians can bring order to algorithmically driven transactions
Creators: name: Henninger, Maureen
name: Yerbury, Hilary
Publisher: name: Zenodo
Year: 2023
Subjects: Digital literacies, Authoritative information, University librarians

description: This is a study which challenges academic librarians to expand programs of information literacy to encompass algorithmic literacy drawing on well-established processes, in order to facilitate the development of skills to create new knowledge in the algorithmically driven platforms of social media .
Holographic fluctuations and the principle of minimal complexity
Creators: name: Chemissany, Wissam
name: Osborne, Tobias J.
Publisher: name: Heidelberg : Springer Verlag
Year: 2016
Subjects: subject: Flux compactifications
subject: dS vacua in string theory
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We discuss, from a quantum information perspective, recent proposals of Maldacena, Ryu, Takayanagi, van Raamsdonk, Swingle, and Susskind that spacetime is an emergent property of the quantum entanglement of an associated boundary quantum system. We review the idea that the informational principle of minimal complexity determines a dual holographic bulk spacetime from a minimal quantum circuit U preparing a given boundary state from a trivial reference state. We describe how this idea may be extended to determine the relationship between the fluctuations of the bulk holographic geometry and the fluctuations of the boundary low-energy subspace. In this way we obtain, for every quantum system, an Einstein-like equation of motion for what might be interpreted as a bulk gravity theory dual to the boundary system.