cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modelling Giant Radio Halos
Creators: name: Donnert, J. M. F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We review models for giant radio halos in clusters of galaxies, with a focus on numerical and theoretical work. After summarising the most important observations of these objects, we present an introduction to the theoretical aspects of hadronic models. We compare these models with observations using simulations and find severe problems for hadronic models. We give a short introduction to reacceleration models and show results from the first simulation of CRe reaccel- eration in cluster mergers. We find that in-line with previous theoretical work, reacceleration models are able to elegantly explain main observables of giant radio halos.
Peripheries : Dynamics for the Green Deal
Creators: name: Schröder, Jörg
Publisher: name: Lindau : Callwey
Year: 2020
Subjects: subject: Green deal
subject: Peripheries
subject: Urbanism
subject: Peripherien
subject: Städtebau
subject: Architektur
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: This article calls for a territorial dimension of the Green Deal for cities, towns, villages, and regions. Dynamics of Peripheries are argued as promising accelerator for an effective and just transition of large parts of European territories—fragmented, diverse, and facing dynamic transformation processes. Place-oriented strategies towards Reserves of Resilience are discussed as important contribution to overall transformation to sustainability. The need to foster Territorial Creativity for a new Habitat Vision of large parts of European territories is put forward to innovate of concepts and tools of urbanism and of action-oriented research: able to empower communities for co-creating shared visions and processes of transformation
title: Детство поэта и биографический нарратив о Пушкине: Ученик Лицея Андрея Платонова
Creators: name: Semenova, Natalia
Publisher: name: AvtobiografiЯ
Year: 2015

description:  Childhood of a Poet and Biographical Narrative about Pushkin: The Disciple of the Lyceum by Andrey Platonov.
This article examines Andrei Platonov’s play The Disciple of the Lyceum, written in 1947–1948, that was proposed for the children’s theater but never staged. The play is focused on the childhood years of the most important national poet and the article discusses the play in the context of both the festivities of 100th and 150th anniversary of Pushkin’s death and birth. The focus of the analyses is on the multiple meanings of childhood in the creation of the national history narrative, as well as on the meaning and place of this play in Platonov’s creative life.
title: Рим Гоголя: авторские чтения повести как факт творческой истории
Creators: name: Mann, Yuri
Publisher: name: AvtobiografiЯ
Year: 2015

description: Gogol’s Rome: The Author’s Readings of the Tale as Part of its Creative Process.
The present article is devoted to the public reading of the tale Rome done by Gogol’ in Rome in March and in December 1839 at some acquaintances’ home, and in Moscow in February 1840, on two different occasions. These readings are considered by the author as a part of the text’s history. On the basis of letters, memoirs and later writings, the article provides a description of the events, of the comments by the people present at the readings and of the reactions by the literary milieu of the time. The author takes into consideration the role which the avtorskie chteniia had for Gogol’ himself, who intended them as moments of self-evaluation of the text. The reaction by the audience is taken into account on the basis of their expectations.
Effects of Ginkgo biloba in dementia: systematic review and meta-analysis
Creators: name: Weinmann, Stefan
name: Roll, Stephanie
name: Schwarzbach, Christoph
name: Vauth, Christoph
name: Willich, Stefan N.
Publisher: name: London : BioMed Central
Year: 2010
Subjects: subject: Dementia
subject: Cholinesterase Inhibitor
subject: Standardize Mean Difference
subject: Ginkgo Extract
subject: Montgomery Asberg Depression Rate Scale
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Background: The benefit of Ginkgo biloba has been discussed controversially. The aim of this review was to assess the effects of Ginkgo biloba in Alzheimer's disease as well as vascular and mixed dementia covering a variety of outcome domains. Methods: We searched MEDLINE, EMBASE, the Cochrane databases, CINAHL and PsycINFO for controlled trials of ginkgo for Alzheimer's, vascular or mixed dementia. Studies had to be of a minimum of 12 weeks duration with at least ten participants per group. Clinical characteristics and outcomes were extracted. Meta-analysis results were expressed as risk ratios or standardized mean differences (SMD) in scores. Results: Nine trials using the standardized extract EGb761 (R) met our inclusion criteria. Trials were of 12 to 52 weeks duration and included 2372 patients in total. In the meta-analysis, the SMDs in change scores for cognition were in favor of ginkgo compared to placebo (-0.58, 95% confidence interval [CI] -1.14; -0.01, p = 0.04), but did not show a statistically significant difference from placebo for activities in daily living (ADLs) (SMD = -0.32, 95% CI -0.66; 0.03, p = 0.08). Heterogeneity among studies was high. For the Alzheimer subgroup, the SMDs for ADLs and cognition outcomes were larger than for the whole group of dementias with statistical superiority for ginkgo also for ADL outcomes (SMD = -0.44, 95% CI -0.77; -0.12, p = 0.008). Drop-out rates and side effects did not differ between ginkgo and placebo. No consistent results were available for quality of life and neuropsychiatric symptoms, possibly due to the heterogeneity of the study populations. Conclusions: Ginkgo biloba appears more effective than placebo. Effect sizes were moderate, while clinical relevance is, similar to other dementia drugs, difficult to determine.
Thermal and dynamical properties of gas accreting onto a supermassive black hole in an AGN
Creators: name: Moscibrodzka, M.
name: Proga, D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: (Abridged) We study stability of gas accretion in Active Galactic Nuclei. Our grid based simulations cover a radial range from 0.1 to 200 pc. Here, as in previous studies by our group, we include gas radiative cooling as well as heating by a sub-Eddington X-ray source near the central supermassive black hole of 10^8 M_{\odot}. Our theoretical estimates and simulations show that for the X-ray luminosity L_X \sim 0.008 L_{Edd}, the gas is thermally and convectivelly unstable within the computational domain. In the simulations, we observe that very tiny fluctuations in an initially smooth, spherically symmetric, accretion flow, grow first linearly and then non-linearly. Consequently, an initially one-phase flow relatively quickly transitions into a two-phase/cold-hot accretion flow. For L_X = 0.015 L_{Edd} or higher, the cold clouds continue to accrete but in some regions of the hot phase, the gas starts to move outward. For L_X < 0.015 L_{Edd}, the cold phase contribution to the total mass accretion rate only moderately dominates over the hot phase contribution. This result might have some consequences for cosmological simulations of the so-called AGN feedback problem. Our simulations confirm the previous results of Barai et al. (2012) who used smoothed particle hydrodynamic simulations to tackle the same problem. However here, because we use a grid based code to solve equations in 1-D and 2-D, we are able to follow the gas dynamics at much higher spacial resolution and for longer time in comparison to the 3-D SPH simulations. One of new features revealed by our simulations is that the cold condensations in the accretion flow initially form long filaments, but at the later times, those filaments may break into smaller clouds advected outwards within the hot outflow. These simulations may serve as an attractive model for the so-called Narrow Line Region in AGN.
description: Accepted for publication in ApJ, 14 pages, 13 figures, 2 tables
title: L’imperfetta struttura circolare della prima edizione di Peterburgskie zimy di Georgij Ivanov
Creators: name: Guagnelli, Simone
Publisher: name: AvtobiografiЯ
Year: 2015

description: The Imperfect Circular Structure of the First Edition of Georgii Ivanov’s Peterburgskie zimy.
The academic debate about the truthfulness of Georgii Ivanov’s autobiographical prose has been extremely vibrant over the last few decades, highlighting how his ‘pseudo-memoirs’ are part of a specific narrative. In the present article, the author focuses on the most debated of Ivanov’s works, i.e. Petersburg Winters, highlighting its circular structure by analysing the recurring motifs in some selected chapters and showing how its imperfectness is actually the result of a stylistic choice of Ivanov.
EIT-like phenomenon with two atomic ensembles in a cavity
Creators: name: Turek, Yusuf
name: Li, Yong
name: Sun, C. P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the spectra of collective low excitations of two atomic ensembles coupled indirectly through a single-mode cavity field. When the left ensemble is driven with an external optical field, its corresponding response spectrum to the incident optical light shows an electromagnetically induced transparency- (EIT-) like phenomenon when the layers are arranged in the sequence of node-antinode but not in the sequence of antinode-node. In the case of antinode-antinode sequence, the response spectrum shows an EIT-like phenomenon with two transparent windows. We also investigate the fluctuation spectra of the atomic collective excitation modes, which show similar EIT-like phenomena.
The Extended GMRT Radio Halo Survey I: New upper limits on radio halos and mini-halos
Creators: name: Kale, R.
name: Venturi, T.
name: Giacintucci, S.
name: Dallacasa, D.
name: Cassano, R.
name: Brunetti, G.
name: Macario, G.
name: Athreya, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A fraction of galaxy clusters host diffuse radio sources called radio halos, radio relics and mini-halos. We present the sample and first results from the Extended GMRT Radio Halo Survey (EGRHS)- an extension of the GMRT Radio Halo Survey (GRHS, Venturi et al. 2007, 2008). It is a systematic radio survey of galaxy clusters selected from the REFLEX and eBCS X-ray catalogs . Analysis of GMRT data at 610/ 235/ 325 MHz on 12 galaxy clusters are presented. We report the detection of a newly discovered mini-halo in the cluster RXJ1532.9+3021 at 610 MHz. A small scale relic (~200 kpc) is suspected in the cluster Z348. We do not detect cluster-scale diffuse emission in 11 clusters. Robust upper limits on the detection of radio halo of size of 1 Mpc are determined. We also present upper limits on the detections of mini-halos in a sub-sample of cool-core clusters. The upper limits for radio halos and mini-halos are plotted in the radio power- X-ray luminosity plane and the correlations are discussed. Diffuse extended emission, not related to the target clusters, but detected as by-products in the sensitive images of two of the cluster fields (A689 and RXJ0439.0+0715) are reported. Based on the information about the presence of radio halos (or upper limits), available on 48 clusters out of the total sample of 67 clusters (EGRHS+GRHS), we find that ~23% of the clusters host radio halos. The radio halo fraction rises to ~31%, when only the clusters with X-ray luminosities >8x10^44 erg/s are considered. Mini-halos are found in ~50 % of cool-core clusters. A qualitative examination of the X-ray images of the clusters with no diffuse radio emission indicates that a majority of these clusters do not show extreme dynamical disturbances and supports the idea that mergers play an important role in the generation of radio halos/relics.
description: 21 pages, 18 figures, 3 tables, accepted for publication in A&A
“Are Machines Better Than Humans in Image Tagging?” - A User Study Adds to the Puzzle
Creators: name: Ewerth, Ralph
name: Springstein, Matthias
name: Phan-Vogtmann, Lo An
name: Schütze, Juliane
Publisher: name: Cham : Springer
Year: 2017
Subjects: subject: Human Performance
subject: Machine Performance
subject: Convolutional Neural Network
subject: Mean Average Precision
subject: Ground Truth Data
subject: Konferenzschrift
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::020 | Bibliotheks- und Informationswissenschaft
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: “Do machines perform better than humans in visual recognition tasks?” Not so long ago, this question would have been considered even somewhat provoking and the answer would have been clear: “No”. In this paper, we present a comparison of human and machine performance with respect to annotation for multimedia retrieval tasks. Going beyond recent crowdsourcing studies in this respect, we also report results of two extensive user studies. In total, 23 participants were asked to annotate more than 1000 images of a benchmark dataset, which is the most comprehensive study in the field so far. Krippendorff’s α is used to measure inter-coder agreement among several coders and the results are compared with the best machine results. The study is preceded by a summary of studies which compared human and machine performance in different visual and auditory recognition tasks. We discuss the results and derive a methodology in order to compare machine performance in multimedia annotation tasks at human level. This allows us to formally answer the question whether a recognition problem can be considered as solved. Finally, we are going to answer the initial question.
Dark matter in massive galaxies
Creators: name: Gerhard, Ortwin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The spatial distributions of luminous and dark matter in massive early-type galaxies reflect the formation processes which shaped these systems. This article reviews the predictions of cosmological simulations for the dark and baryonic components of ETGs, and the observational constraints from lensing, hydrostatic X-ray gas athmospheres, and outer halo stellar dynamics.
description: Invited review, 10 pages, 1 figure, LaTeX. To appear in Proc. of IAU Symposium 295 held in Beijing, China, August 2012, eds. D. Thomas, A. Pasquali and I. Ferreras, Cambridge Univ. Press
Security and Privacy Challenges in Cognitive Wireless Sensor Networks
Creators: name: Sen, Jaydip
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cryptography and Security (cs.CR)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Wireless sensor networks (WSNs) have attracted a lot of interest in the research community due to their potential applicability in a wide range of real-world practical applications. However, due to the distributed nature and their deployments in critical applications without human interventions and sensitivity and criticality of data communicated, these networks are vulnerable to numerous security and privacy threats that can adversely affect their performance. These issues become even more critical in cognitive wireless sensor networks (CWSNs) in which the sensor nodes have the capabilities of changing their transmission and reception parameters according to the radio environment under which they operate in order to achieve reliable and efficient communication and optimum utilization of the network resources. This chapter presents a comprehensive discussion on the security and privacy issues in CWSNs by identifying various security threats in these networks and various defense mechanisms to counter these vulnerabilities. Various types of attacks on CWSNs are categorized under different classes based on their natures and targets, and corresponding to each attack class, appropriate security mechanisms are also discussed. Some critical research issues on security and privacy in CWSNs are also identified.
description: 36 pages, 4 figures, 2 tables. The book chapter is accepted for publication in 2013
Simulation der Exposition des menschlichen Körpers durch magnetoquasistatische Felder von induktiven Ladesystemen in Automobilen
Creators: name: Clemens, Markus
name: Zang, Martin
name: Schmülling, Benedikt
Publisher: name: Frankfurt/Main : mesago
Year: 2018
Subjects: subject: Umweltuntersuchung
subject: Kraftfahrzeug
subject: Ladestation
subject: numerische Simulation
subject: Person
subject: Zweischritt-Verfahren
subject: menschlicher Körper
subject: induktives Ladesystem
subject: biologischer Organismus
subject: induktive Ladestation
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: Es wurden drei Zweischritt-Verfahren für elektromagnetische Umweltverträglichkeitsuntersuchungen der magneto-quasistatischen Feldexposition biologischer Organismen basierend auf der Scaled-Frequency FDTD Methode sowie der Scalar Potential Finite Difference Methode vorgestellt. Diese Verfahren wurden entwickelt und angewandt für magnetische Expositionsszenarien von Personen im Umfeld von Kraftfahrzeugen über induktiven Ladestationen. Die Verfahren erlauben die effiziente Verwendung hochrealistischer Modellgeometrien. Die Zweischritt-Verfahren erfordern geringerer Aufwand bei der erforderlichen Gitterauflösung und erzielten eine Reduktion des numerischen Simulationsaufwandes gegenüber monolithischen Simulationen.
title: Сумма поэтонимологии: филолософемы дилетанта. 3. Предыстория поэтонимологии
Creators: name: Калинкин, Валерий
Publisher: name: Новгородский печатный двор
Year: 2019

description: В комплексе предпосылок возникновения поэтонимологии как науки отчётливо выявляются, с одной стороны, факторы, обеспечившие превращение имени собственного в средство поэтики, а с другой – предшествующие собственно науке предпосылки теории, сформировавшиеся в процессе осмысления философами проблемы имени как категории мышления. Длительность и разнородность процессов взаимодействия и взаимовлияния творческой и
рефлектирующей стихий составили тот конгломерат представлений о поэтике проприальных единиц, которые лежат в основе современной теории поэтонимологии.
Supersymmetric Descendants of Self-Adjointly Extended Quantum Mechanical Hamiltonians
Creators: name: Al-Hashimi, M. H.
name: Salman, M.
name: Shalaby, A.
name: Wiese, U. -J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the descendants of self-adjointly extended Hamiltonians in supersymmetric quantum mechanics on a half-line, on an interval, and on a punctured line or interval. While there is a 4-parameter family of self-adjointly extended Hamiltonians on a punctured line, only a 3-parameter sub-family has supersymmetric descendants that are themselves self-adjoint. We also address the self-adjointness of an operator related to the supercharge, and point out that only a sub-class of its most general self-adjoint extensions is physical. Besides a general characterization of self-adjoint extensions and their supersymmetric descendants, we explicitly consider concrete examples, including a particle in a box with general boundary conditions, with and without an additional point interaction. We also discuss bulk-boundary resonances and their manifestation in the supersymmetric descendant.
description: 31 pages, 10 figures
Interlocutor relation predicts the formality of the conversation
Creators: name: Rotter, Stephanie
name: Liu, Mingya
Publisher: name: Humboldt-Universität zu Berlin
Year: 2023
Subjects: subject: formality
subject: situational parameter
subject: interlocutor relation
subject: rating study
subject: American and British English
subject: 410 Linguistik

description: Formality is an important notion in register research. However, it is hard to give it a precise definition. Furthermore, it is challenging to identify the situational parameters required for levels of formality. Potential parameters include the social relation between interlocutors. We conducted two rating studies with American and British English speakers and tested the connection between formality and social relations, while exploring the influence of certain demographic factors on the rating. We hypothesised that public social relations are associated with more formal contexts than private social relations. The results strongly confirmed the hypothesis. We expect that our findings shed further light on the connection between formality and social relations and consequently, inform experimental set-ups investigating variation in language use.
Calibration of Concentric Tube Continuum Robots: Automatic Alignment of Precurved Elastic Tubes
Creators: name: Modes, Vincent
name: Burgner-Kahrs, Jessica
Publisher: name: New York, N.Y. : Institute of Electrical and Electronics Engineers
Year: 2019
Subjects: subject: Flexible Robots
subject: Calibration and Identification
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Joint level calibration is an integral part of robotics as it directly influences the achievable accuracy. As opposed to serial robotic arms, continuum robots are not composed of any rigid links or joints, but of elastic materials that undergo bending and torsion. The jointless composition requires dedicated calibration procedures. In this letter, we introduce an automatic method for aligning precurved elastic tubes for joint level calibration of concentric tube continuum robots. The robot tip is equipped with a sensor in order to track its position during calibration such that subsequent data processing can extract the rotational zero position automatically. While we present a general framework independent of the utilized sensor technology, we evaluate our approach using three different sensing methodologies, i.e. magnetic, inductive, and electromagnetic. Furthermore, we advise on properties for appropriate sensors. Our experimental results show, that the rotational home position can be found reproducibly with a minimal dispersion of 0.011°.
Towards FAIR Principles for Research Information: Report on a Series of Workshops
Creators: name: Kaliuzhna, Nataliia
name: Altemeier, Franziska
Publisher: name: Kyiv : Kyiv National University of Culture and Arts
Year: 2021
Subjects: subject: metadata
subject: research information
subject: FAIR principles
subject: data stewardship
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::020 | Bibliotheks- und Informationswissenschaft

description: This is a summary report of the series of workshops on FAIR research information in open infrastructures that was jointly organised by the State Scientific and Technical Library of Ukraine (SSTL) and Leibniz Information Centre for Science and Technology (TIB) which have been collaborating under the framework of Joint German-Ukrainian project supported by the Federal Ministry of Education and Research of Germany and the Ministry of Science and Education of Ukraine. The workshops successfully harnessed the enthusiasm and experience of librarians, researchers, software providers, public funding body representatives, content providers, scientometricians and information specialists in an attempt to shed light and define criteria which assist discovery and reuse of research information by third-parties and make it FAIR. The series of workshops consisted of four separate workshops which addressed single aspects of FAIR– findability, accessibility, interoperability and reuse concerning research information. Due to Covid-19 travel restrictions workshops were held online between September 2020 and January 2021.
title: Нравственные ориентиры современной американской литературы
Creators: name: Скобелева, Елена
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Исследуются нравственные ориентиры современного американского общества, нашедшие отражение в американской литературе. В качестве примера автор обращается к изучению произведений, написанных в жанре постапокалиптики: «Голодные игры» Сьюзен Коллинз, «Дивергент» Вероники Рот и «Бегущий в лабиринте» Джеймса Дешнера. Данные произведения были выбраны, так как они получили высшие оценки на различных читательских форумах, были переведены и изданы во многих странах мира, экранизированы. Действие произведений развивается в далеком будущем в обществе, пережившем глобальную катастрофу. Сюжет строится вокруг приключений героев, непрерывно находящихся на грани гибели. Общим для них является то, что главный герой — бунтарь, который идет против системы. Однако им движет не стремление к славе или власти, а совершенно другие мотивы — желание защитить своих друзей и близких. Повествование рассматривается как срез современной действительности.
MODELING THE CAUSAL RELATIONS BETWEEN MIND WANDERING, DIGITAL READINESS AND ACADEMIC ENGAGEMENT IN E-LEARNING AMONG UNIVERSITY STUDENTS
Creators: name: YOUSEF MOHAMED AHMED SHALABY
name: WESSAM HAMDY EL-KASABY
Publisher: name: Zenodo
Year: 2023
Subjects: Mental Wandering, Digital Readiness, Academic Engagement, E-Learning, Structural Equation Modeling.

description: Abstract
This study modeled causal relations between mental wandering, digital readiness, and academic engagement among 298 university students in e-learning contexts. Quantitative analysis uncovered a high level of mind wandering and uneven digital readiness among participants. Academic engagement was moderately developed across behavioral, emotional, and cognitive domains. Structural equation modeling validated a proposed model of causal mechanisms linking these factors based on cognitive load, connectivism, and flow theories. Mental wandering demonstrated direct negative effects on engagement by disrupting cognitive focus and meta-awareness. Poor digital readiness also dampened engagement by overloading mental capacities and inhibiting access to online learning communities. The model provides a framework for investigating predictors of mind wandering and digital readiness and examining moderators of their impacts on engagement. Findings inform potential interventions to strengthen engagement and performance in e-learning through mindfulness training, digital skills development, and promoting social connections, interest, and cognitive absorption. This research elucidates the intersection of psychological dispositions, technological competencies, and embeddedness in digital learning and charts future inquiry directions.
The effect of light intensity and shear stress on microbial biostabilization and the community composition of natural biofilms
Creators: name: Schmidt, Holger
name: Thom, Moritz
name: Wieprecht, Silke
name: Manz, Werner
name: Gerbersdorf, Sabine Ulrike
Publisher: name: Auckland : Dove Medical Press
Year: 2018
Subjects: subject: microbial biostabilization
subject: natural biofilms
subject: abiotic factors
subject: microbial community
subject: mesocosm
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Biofilms constitute an important issue in microbial ecology, due to their high ecological and economic relevance, but the impact of abiotic conditions and microbial key players on the development and functionality of a natural biofilm is still little understood. This study investigated the effects of light intensity (LI) and bed shear stress (BSS) and the role of dominant microbes during the formation of natural biofilms and particularly the process microbial biostabilization. A comprehensive analysis of microbial biomass, extracellular polymeric substances produced, and the identification of dominant bacterial and algal species was correlated with assessment of biofilm adhesiveness/stability. LI and BSS impacted the biofilms in very different ways: biofilm adhesiveness significantly increased with LI and decreased with BSS. Moreover, microbial biomass and the functional organization of the bacterial community increased with LI, while the dynamics in the bacterial community increased with BSS. Most stable biofilms were dominated by sessile diatoms like Achnanthidium minutissimum or Fragilaria pararumpens and bacteria with either filamentous morphology, such as Pseudanabaena biceps, or a potential high capacity for extracellular polymeric-substance production, such as Rubrivivax gelatinosus. In contrast, microbes with high motility, such as Nitzschia fonticola, Pseudomonas fluorescens, and Caulobacter vibrioides, dominated the least adhesive biofilms. Their movement and potential antibiotic production could have had a disruptive impact on the biofilm matrix, which decreased its stability. This is the first study to unveil the link between abiotic conditions and resulting shifts in key microbial players to impact the ecosystem-service microbial biostabilization.
Salix cinerea
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: S. cinerea X glauca- l: Salanfe, 1950m (Coquoz 1927).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Analytical Determination of the Slot and the End-Winding Portion of the Winding-to-Rotor Capacitance for the Prediction of Shaft Voltage in Electrical Machines
Creators: name: Stockbrügger, Jan Ole
name: Ponick, Bernd
Publisher: name: Basel : MDPI AG
Year: 2021
Subjects: subject: winding-to-rotor capacitance
subject: shaft voltage
subject: EDM currents
subject: traction motor
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Common-mode voltage, caused by a 2-level inverter, is a source of discharge currents in motor bearings. Due to the capacitive coupling, between the stator winding and the rotor, an image of the common-mode voltage is produced on the shaft—which can exceed the dielectric strength of the lubrication film of motor bearings. Accurate determination of the winding-to-rotor capacitance is necessary to predict the shaft voltage. This article proposes a novel analytical determination of the slot and the end-winding portion of the winding-to-rotor capacitance. The calculation rules, which are based on the method of image charges and the charge simulation method, take into account the continuity and the boundary conditions of the field areas. Results are validated by means of finite element method simulations. Notably, deviations are in the single-digit percentage range. Furthermore, the presented methods are simple to implement.
Beam Energy Dependence of Higher Moments of Net-proton Multiplicity Distributions in Heavy-ion Collisions at RHIC
Creators: name: Luo, Xiaofeng
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present various order moments (Variance ($σ^2$), Skewness($S$), Kurtosis($κ$)) of net-proton multiplicity distributions in Au+Au collisions from the first phase of RHIC beam energy scan ({\sNN}=7.7$-$200 GeV). The measurements are carried out by the STAR detector at mid-rapidity ($|y|<0.5$) and within transverse momentum range $0.4
description: 8 pages, 6 figures. Proceedings of 8th International Workshop on Critical Point and Onset of Deconfinement
Modeling, Calibration, and Evaluation of a Tendon-Actuated Planar Parallel Continuum Robot
Creators: name: Nuelle, Kathrin
name: Sterneck, Tim
name: Lilge, Sven
name: Xiong, Dezhu
name: Burgner-Kahrs, Jessica
name: Ortmaier, Tobias
Publisher: name: Piscataway, NJ : IEEE
Year: 2020
Subjects: subject: Flexible robots
subject: parallel robots
subject: kinematics
subject: calibration and identification
subject: Dewey Decimal Classification::600 | Technik

description: In this work, a novel planar parallel continuum robot (PCR) is introduced, consisting of three kinematic chains that are coupled at a triangular end-effector platform and include tendon-actuated continuum segments. The kinematics of the resulting structure are derived by adapting the descriptions for conventional planar parallel manipulators to include constant curvature bending of the utilized continuous segments. To account for friction and non-linear material effects, a data-driven model is used to relate tendon displacements and curvature of the utilized continuum segments. A calibration of the derived kinematic model is conducted to specifically represent the constructed prototype. This includes the calibration of geometric parameters for each kinematic chain and for the end-effector platform. During evaluation, positioning repeatability of 1.0% in relation to one continuum segment length of the robot, and positioning accuracy of 1.4%, are achieved. These results are comparable to commonly used kineto-static modeling approaches for PCR. The presented model achieves high path accuracies regarding the robot's end-effector pose in an open-loop control scenario.
Global and local cutoff frequencies for transverse waves propagating along solar magnetic flux tubes
Creators: name: Routh, S.
name: Musielak, Z. E.
name: Hammer, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The propagation of linear transverse waves along a thin isothermal magnetic flux tube is affected by a global cutoff frequency that separates propagating and non-propagating waves. In this paper, wave propagation along a thin but non-isothermal flux tube is considered and a local cutoff frequency is derived. The effects of different temperature profiles on this local cutoff frequency are studied by considering different power-law temperature distributions as well as the semi-empirical VAL C model of the solar atmosphere. The results show that the conditions for wave propagation strongly depend on the temperature gradients. Moreover, the local cutoff frequency calculated for the VAL C model gives constraints on the range of wave frequencies that are propagating in different parts of the solar atmosphere. These theoretically predicted constraints are compared to observational data and are used to discuss the role played by transverse tube waves in the atmospheric heating and dynamics, and in the excitation of solar atmospheric oscillations.
description: To be publishd in ApJ Vol. 763. 10 pages, 3 Postscript figures
Estimate for a solution to the water wave problem in the presence of a submerged body
Creators: name: Kamotski, Ilia
name: Maz'ya, Vladimir
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: We study the two-dimensional problem of propagation of linear water waves in deep water in the presence of a submerged body. Under some geometrical requirements, we derive an explicit bound for the solution depending on the domain and the functions on the right-hand side.
Strengthened Cauchy-Schwarz and Hölder inequalities
Creators: name: Aldaz, J. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We present some identities related to the Cauchy-Schwarz inequality in complex inner product spaces. A new proof of the basic result on the subject of Strengthened Cauchy-Schwarz inequalities is derived using these identities. Also, an analogous version of this result is given for Strengthened Hölder inequalities.
Exchange Interactions in Paramagnetic Amorphous and Disordered Crystalline CrN-based Systems
Creators: name: Lindmaa, A.
name: Lizárraga, R.
name: Holmström, E.
name: Abrikosov, I. A.
name: Alling, B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a first principles supercell methodology for the calculation of exchange interactions of magnetic materials with arbitrary degrees of structural and chemical disorder in their high temperature paramagnetic state. It is based on a projection of the total magnetic energy of the system onto local pair clusters, allowing the interactions to vary independently as a response to their local environments. We demonstrate our method by deriving the distance dependent exchange interactions in vibrating crystalline CrN, a Ti$_{0.5}$Cr$_{0.5}$N solid solution as well as in amorphous CrN. Our method reveals strong local environment effects in all three systems. In the amorphous case we use the full set of exchange interactions in a search for the non-collinear magnetic ground state.
description: 5 pages, 3 figures
Rotational Symmetry of Conical Kähler-Ricci Solitons
Creators: name: Chodosh, Otis
name: Fong, Frederick Tsz-Ho
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 53C44, 35C08

description: We show that expanding Kähler-Ricci solitons which have positive holomorphic bisectional curvature and are asymptotic to Kähler cones at infinity must be the U(n)-rotationally symmetric expanding solitons constructed by Cao.
description: 13 pages; some assumptions removed
Statistical limits for entanglement swapping with semiconductor entangled photon sources
Creators: name: Yang, Jingzhong
name: Zopf, Michael
name: Li, Pengji
name: Sharma, Nand Lal
name: Nie, Weijie
name: Benthin, Frederik
name: Fandrich, Tom
name: Rugeramigabo, Eddy P.
name: Hopfmann, Caspar
name: Keil, Robert
name: Schmidt, Oliver G.
name: Ding, Fei
Publisher: name: Ridge, NY : American Physical Society (APS)
Year: 2022
Subjects: subject: Nanoantennas
subject: Quantum optics
subject: Quantum dots
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Semiconductor quantum dots are promising building blocks for quantum communication applications. Al- though deterministic, efficient, and coherent emission of entangled photons has been realized, implementing a practical quantum repeater remains outstanding. Here we explore the statistical limits for entanglement swapping with sources of polarization-entangled photons from the commonly used biexciton-exciton cascade. We stress the necessity of tuning the exciton fine structure, and explain why the often observed time evolution of photonic entanglement in quantum dots is not applicable for large quantum networks. We identify the critical, statistically distributed device parameters for entanglement swapping based on two sources. A numerical model for benchmarking the consequences of device fabrication, dynamic tuning techniques, and statistical effects is developed, in order to bring the realization of semiconductor-based quantum networks one step closer to reality. ©2022 American Physical Society
A ferredoxin bridge connects the two arms of plant mitochondrial complex I
Creators: name: Klusch, Niklas
name: Senkler, Jennifer
name: Yildiz, Özkan
name: Kühlbrandt, Werner
name: Braun, Hans-Peter
Publisher: name: Rockville, Md. : American Society of Plant Physiologists
Year: 2021
Subjects: subject: electron transfer
subject: mitochondrial complex I
subject: plant metabolism
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Mitochondrial complex I is the main site for electron transfer to the respiratory chain and generates much of the proton gradient across the inner mitochondrial membrane. Complex I is composed of two arms, which form a conserved L-shape. We report the structures of the intact, 47-subunit mitochondrial complex I from Arabidopsis thaliana and the 51-subunit complex I from the green alga Polytomella sp., both at around 2.9 Å resolution. In both complexes, a heterotrimeric γ-carbonic anhydrase domain is attached to the membrane arm on the matrix side. Two states are resolved in A. thaliana complex I, with different angles between the two arms and different conformations of the ND1 (NADH dehydrogenase subunit 1) loop near the quinol binding site. The angle appears to depend on a bridge domain, which links the peripheral arm to the membrane arm and includes an unusual ferredoxin. We propose that the bridge domain participates in regulating the activity of plant complex I.
Schulische Betreuung von Kindern beruflich Reisender unter besonderer Berücksichtigung der Kultur- und Bildungsidentität
Creators: name: Käter, Franz-Josef
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Travel as a way of life
subject: safeguarding cultural and educational identity
subject: network of learning possibilities for children of itinerant parents
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: [no abstract]
Modified holographic Ricci dark energy coupled to interacting dark matter and a non interacting baryonic component
Creators: name: Chimento, Luis P.
name: Forte, Mónica I.
name: Richarte, Martín G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We examine a Friedmann-Robertson-Walker universe filled with interacting dark matter, modified holographic Ricci dark energy (MHRDE), and a decoupled baryonic component.The estimations of the cosmic parameters with Hubble data lead to an age of the universe of $13.17 {\rm Gyr}$ and show that the MHRDE is free from the cosmic-age problem at low redshift ($0 \leq z \leq 2$) in contrast to holographic Ricci dark energy (HRDE) case. We constrain the parameters with the Union2 data set and contrast with the Hubble data. We also study the behavior of dark energy at early times by taking into account the severe bounds found at recombination era and/or at big bang nucleosynthesis. The inclusion of a non interacting baryonic matter forces that the amount of dark energy at $z_{t} \sim {\cal O}(1)$ changes abruptly implying that $Ω_x (z\simeq 1100) =0.03$, so the bounds reported by the forecast of Planck and CMBPol experiments are more favored for the MHRDE model than in the case of HRDE cutoff. For the former model, we also obtain that at high redshift the fraction of dark energy varies from 0.006 to 0.002, then the amount of $Ω_x $ at the big bang nucleosynthesis era does not disturb the observed Helium abundance in the universe provided that the bound $Ω_{x}(z\simeq 10^{10})<0.21$ is hold.
description: 11 pages, 6 figures, two columns. Accepted for publication in The European Physical Journal C (2013)
Awareness and Learning in Participatory Noise Sensing
Creators: name: Becker, Martin
name: Caminiti, Saverio
name: Fiorella, Donato
name: Francis, Louise
name: Gravino, Pietro
name: Haklay, Mordechai (Muki)
name: Hotho, Andreas
name: Loreto, Vittorio
name: Müller, Jürgen
name: Ricchiuti, Ferdinando
name: Servedio, Vito D.P.
name: Sirbu, Alina
name: Tria, Francesca
Publisher: name: San Francisco : Public Library Science
Year: 2013
Subjects: subject: exposure
subject: Dewey Decimal Classification::100 | Philosophie::150 | Psychologie
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie

description: The development of ICT infrastructures has facilitated the emergence of new paradigms for looking at society and the environment over the last few years. Participatory environmental sensing, i.e. directly involving citizens in environmental monitoring, is one example, which is hoped to encourage learning and enhance awareness of environmental issues. In this paper, an analysis of the behaviour of individuals involved in noise sensing is presented. Citizens have been involved in noise measuring activities through the WideNoise smartphone application. This application has been designed to record both objective (noise samples) and subjective (opinions, feelings) data. The application has been open to be used freely by anyone and has been widely employed worldwide. In addition, several test cases have been organised in European countries. Based on the information submitted by users, an analysis of emerging awareness and learning is performed. The data show that changes in the way the environment is perceived after repeated usage of the application do appear. Specifically, users learn how to recognise different noise levels they are exposed to. Additionally, the subjective data collected indicate an increased user involvement in time and a categorisation effect between pleasant and less pleasant environments.
Quantum Calculation of Inelastic CO Collisions with H: I. rotational quenching of low-lying rotational levels
Creators: name: Yang, Benhui
name: Stancil, P. C.
name: Balakrishnan, N.
name: Forrey, R. C.
name: Bowman, J. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: New quantum scattering calculations for rotational deexcitation transitions of CO induced by H collisions using two CO-H potential energy surfaces (PESs) from Shepler et al. (2007) are reported. State-to-state rate coefficients are computed for temperatures ranging from 1 to 3000 K for CO($v=0,j$) deexcitation from $j=1-5$ to all lower $j^\prime$ levels, with $j$ being the rotational quantum number. Different resonance structures in the cross sections are attributed to the differences in the anisotropy and the long-range van der Waals well depths of the two PESs. These differences affect rate coefficients at low temperatures and give an indication of the uncertainty of the results. Significant discrepancies are found between the current rate coefficients and previous results computed using earlier potentials, while the current results satisfy expected propensity rules. Astrophysical applications to modeling far infrared and submillimeter observations are briefly discussed.
description: 21 pages, 5 figures