cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Enhancing and Adapting in the Clinic: Source-free Unsupervised Domain Adaptation for Medical Image Enhancement
Creators: name: Li, Heng
name: Lin, Ziqin
name: Qiu, Zhongxi
name: Li, Zinan
name: Fu, Huazhu
name: Hu, Yan
name: Liu, Jiang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Medical imaging provides many valuable clues involving anatomical structure and pathological characteristics. However, image degradation is a common issue in clinical practice, which can adversely impact the observation and diagnosis by physicians and algorithms. Although extensive enhancement models have been developed, these models require a well pre-training before deployment, while failing to take advantage of the potential value of inference data after deployment. In this paper, we raise an algorithm for source-free unsupervised domain adaptive medical image enhancement (SAME), which adapts and optimizes enhancement models using test data in the inference phase. A structure-preserving enhancement network is first constructed to learn a robust source model from synthesized training data. Then a teacher-student model is initialized with the source model and conducts source-free unsupervised domain adaptation (SFUDA) by knowledge distillation with the test data. Additionally, a pseudo-label picker is developed to boost the knowledge distillation of enhancement tasks. Experiments were implemented on ten datasets from three medical image modalities to validate the advantage of the proposed algorithm, and setting analysis and ablation studies were also carried out to interpret the effectiveness of SAME. The remarkable enhancement performance and benefits for downstream tasks demonstrate the potential and generalizability of SAME. The code is available at https://github.com/liamheng/Annotation-free-Medical-Image-Enhancement.
description: 14 pages, 9 figures, in IEEE Transactions on Medical Imaging
Semicassis globosum (Mollusca: Gastropoda: Cassidae) from the upper Eocene Ocala Limestone of Florida with redescription and discussion of its extreme morphological variability
Creators: name: Tennakoon, Shamindri
name: Portell, Roger W.
name: Petsios, Elizabeth
name: Tyler, Carrie L.
name: Kowalewski, Michal
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 60506 Virology

description: This study aimed to resolve the taxonomy of cassid gastropods from the upper Eocene Ocala Limestone based on specimens collected from Florida Museum of Natural History locality AL004. In 1890, Dall described a specimen from this formation, collected in a nearby county as Phalium globosum (subfamily Phaliinae). However, further collection of cassids from AL004 suggested the presence of more than one morphologically distinct taxon. Eocene cassids are particularly interesting because that is presumably the time when cassids experienced rapid diversification, which has implications for the evolutionary history of echinoid-cassid predator–prey interactions. Based on 75 specimens from AL004, it appears that the specimens interpreted as belonging to two or more morphologically distinct taxa are more likely members of a single species with extreme morphological variability, redescribed here as Semicassis globosum. Results of morphometric analyses using nine qualitatively defined cassid morphotaxa (subfamily Phaliinae) suggest that S. globosum is characterised by high intraspecific variability in shell morphology that may reflect high ecophenotypic variability or elevated intraspecific genetic variability. This study highlights the challenges associated with delineating species status using low numbers of specimens, as a dearth of diagnostic material may lead to taxonomic “over-splitting,” thereby resulting in an inflated estimate of biodiversity.
Surface Wave Analysis and its Application to the Calculation of Converted Wave Static Corrections
Creators: name: Roohollah, Askari
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Converted wave
subject: Surface wave analysis
subject: Static correction
subject: Phase velocity
subject: Group velocity
subject: S-wave receiver statics
subject: CMP Cross-Correlation of Surface Waves (CCSW)
subject: Slant Stack Generalized S transform
subject: Generalized Stransform

description: Using surface waves, we can estimate an S-wave velocity model to address the S-wave receiver statics of converted waves. Shear wave velocity is estimated from the inversion of either phase or group velocity. I address three major problems within the realm of S-wave receiver statics and these are the problem of inversion accuracy, misinterpretation of multi-modes, and the optimization of spatial analysis windows. To improve inversion accuracy, I develop a method to simultaneously estimate the phase and group velocities of surface waves based on the generalized S transform. The method is robust and it returns accurate results. To cope with noise and dispersion in the data, I introduce two cost functions. Though my method is robust where the surface wave is highly dispersed, I find that parameterization becomes ambiguous when the surface wave is multi-modal, and so it is possible for misinterpretation of different modes of the surface wave. To address multi-modality for the estimation of the group velocity, I develop a slant stack method that is based again on the generalized S transform. To control spectral localization, I use a scaling factor in the generalized S transform. I find that a small scaling factor should be chosen for low frequency surface-waves, whereas for higher frequencies a larger scaling factor should be chosen. Finally, I determine an accurate S-wave velocity model of the near surface for use in S-wave statics estimation by optimizing the analysis spatial-window. To do this, I enlarge upon the idea of CMP Cross-Correlation of Surface Waves (CCSW). I obtain a precise estimation of a dispersion curve by limiting analysis to seismic traces that lie within a limited spatial window. I find that the optimum window length (aperture) should be close (one to one and half) to the maximum wavelength in a CMP gather. I find that, through experiment, when the aperture is optimum, a high resolution image of each mode within the dispersion curve is observable, and this avoids interpretation of modal interferences. A secondary benefit of my CCSW approach is its faster computational process than the conventional implementation.
Locating Faults with Program Slicing - An Empirical Analysis - Replication Package
Creators: name: Kirschner, Lukas
name: Soremekun, Ezekiel
name: Zeller, Andreas
name: Böhme, Marcel
Publisher: name: figshare
Year: 2020
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: Replication Package for our conference contribution, Locating Faults with Program Slicing - An Empirical Analysis
Metamaterial near-field sensor for deep-subwavelength thickness measurements and sensitive refractometry in the terahertz frequency range
Creators: name: Reinhard, Benjamin
name: Schmitt, Klemens M.
name: Wollrab, Viktoria
name: Neu, Jens
name: Beigang, René
name: Rahm, Marco
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a metamaterial-based terahertz (THz) sensor for thickness measurements of subwavelength-thin materials and refractometry of liquids and liquid mixtures. The sensor operates in reflection geometry and exploits the frequency shift of a sharp Fano resonance minimum in the presence of dielectric materials. We obtained a minimum thickness resolution of 12.5 nm (1/16000 times the wavelength of the THz radiation) and a refractive index sensitivity of 0.43 THz per refractive index unit. We support the experimental results by an analytical model that describes the dependence of the resonance frequency on the sample material thickness and the refractive index.
description: 10 pages, 5 figures
Exploration of Resilience in Relation to Mindfulness, Self-Compassion, and Attachment Styles
Creators: name: Kurilova, Jana
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Guidance and Counseling
subject: resilience
subject: Mindfulness
subject: Self-compassion
subject: Attachment

description: This study utilized a cross-sectional design (N = 114) to investigate relationships between the constructs of resilience, mindfulness, self-compassion, and attachment styles with the goal of gaining better insights into the nature of these relationships and shedding light on the possible mechanisms through which these constructs may interact and contribute to positive mental health outcomes. Resilience was significantly positively correlated with mindfulness and self-compassion, as well as significantly inversely correlated with attachment anxiety and attachment avoidance. Multiple regression analyses containing the predictors of (a) mindfulness, self-compassion, attachment anxiety, and attachment avoidance, (b) individual mindfulness components, and (c) individual self-compassion components all accounted for a significant amount of variance in resilience scores. Mindfulness and self-compassion were significantly negatively correlated with both attachment anxiety and attachment avoidance. An additional exploratory component of this study examined the effects of yoga practice and amount of experience in practicing yoga on the constructs of interest.
Near-unity Cooper pair splitting efficiency
Creators: name: Schindele, J.
name: Baumgartner, A.
name: Schönenberger, C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The two electrons of a Cooper pair in a conventional superconductor form a singlet and therefore a maximally entangled state. Recently, it was demonstrated that the two particles can be extracted from the superconductor into two spatially separated contacts via two quantum dots (QDs) in a process called Cooper pair splitting (CPS). Competing transport processes, however, limit the efficiency of this process. Here we demonstrate efficiencies up to 90%, significantly larger than required to demonstrate interaction-dominated CPS, and on the right order to test Bell's inequality with electrons. We compare the CPS currents through both QDs, for which large apparent discrepancies are possible. The latter we explain intuitively and in a semi-classical master equation model. Large efficiencies are required to detect electron entanglement and for prospective electronics-based quantum information technologies.
description: 4 pages
Melt-freeze crust formation and evolution in the Columbia Mountains
Creators: name: Buhler, Ryan
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Civil
subject: avalanche
subject: Snow
subject: melt
subject: freeze
subject: crust
subject: Columbia
subject: Mountains
subject: Evolution
subject: Formation

description: Melt-freeze crusts play an important role in many slab avalanches. Recent work with snowpack models has shown the need for field based research on the formation and evolution of melt-freeze crusts. This project uses historical weather and snowpack data to determine the metrological conditions during crust formation and the resulting crust properties. In addition, field measurements of the evolution of buried melt-freeze crusts were collected over the winters of 2010-11 and 2011-12. Measured properties include density, shear strength, and thin-blade resistance. A thermal imager was used to track changes to small scale temperature gradients around crusts. A new set of crust indices were developed as a simple method for tracking changes to crust internal lamination and the bonding to adjacent layers. These measurements and indices can supplement the data used for avalanche forecasting and be used to improve and validate snowpack evolution models.
Integrating nutritional and geopolitical considerations into transformative science, technology, and innovation policies: the case of vertical farming
Creators: name: Policy Labs, Frontiers
Publisher: name: Frontiers
Year: 2024
Subjects: subject: Plant Biology
subject: FOS: Biological sciences

description: To drive food system transformation, innovation policy must take a systems-based approach, focusing on vertical farming’s potential within broader geopolitical and sustainability contexts, asserts Prof Anne Loeber, University of Amsterdam, Netherlands.
For the full context, please click here: https://policylabs.frontiersin.org/content/policy-outlook-vertical-farming-nutritional-geopolitical-considerations
Species discovery and dental ecometrics: good news, bad news and recommendations for the future
Creators: name: Wilson, Oscar E.
name: Fortelius, Mikael
name: Saarinen, Juha
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: Plant Biology

description: New mammal species have always been a source of major zoological intrigue, and whilst discoveries of large mammals are becoming less frequent, species like the saola and dingiso continue to enter the zoological literature. Modern communities are often assumed to be complete and are used for constructing community-level models. One example is ecometric modelling. Here, we estimate the number of large herbivorous mammals not yet described based on description curves. We also investigate the effect of species description on the stability and accuracy of previously established relationships between traits and climate. The contemporary description record of large herbivorous mammals is incomplete, with at least 83 species undescribed. Primates, artiodactyls and marsupials are estimated to contain the greatest undescribed diversity, with particular gaps in the Neotropic, Afrotropic and Indomalayan realms. We find that beyond ~40% completeness, there is a limited impact on trait–environment relationships of increased species description, but that there is a high mismatch between true and predicted climatic values for published models. Consequently, mammalian species that have not yet been discovered are unlikely to have a large impact on the accuracy of trait-environment models, but we suggest possible alterations to previous approaches that might improve the accuracy of future models.
A bounded confidence approach to understanding user participation in peer production systems
Creators: name: Ciampaglia, Giovanni Luca
Publisher: name: arXiv
Year: 2011
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computers and Society (cs.CY)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Commons-based peer production does seem to rest upon a paradox. Although users produce all contents, at the same time participation is commonly on a voluntary basis, and largely incentivized by achievement of project's goals. This means that users have to coordinate their actions and goals, in order to keep themselves from leaving. While this situation is easily explainable for small groups of highly committed, like-minded individuals, little is known about large-scale, heterogeneous projects, such as Wikipedia. In this contribution we present a model of peer production in a large online community. The model features a dynamic population of bounded confidence users, and an endogenous process of user departure. Using global sensitivity analysis, we identify the most important parameters affecting the lifespan of user participation. We find that the model presents two distinct regimes, and that the shift between them is governed by the bounded confidence parameter. For low values of this parameter, users depart almost immediately. For high values, however, the model produces a bimodal distribution of user lifespan. These results suggest that user participation to online communities could be explained in terms of group consensus, and provide a novel connection between models of opinion dynamics and commons-based peer production.
description: 17 pages, 5 figures, accepted to SocInfo2011
HOOP D1.2 Data Management Plan - Version 2
Creators: name: Gambuzzi, Elisa
name: Suárez, Miguel Angel
Publisher: name: Zenodo
Year: 2023

description: HOOP is a project based on information and data for providing project development assistance (PDA) to cities and regions. Therefore, it is essential for the success of HOOP to have a good Data Management Plan (DMP). DMP is the document which describes the management of the data collected, generated and processed along the project lifetime.
The DMP identifies the types of data from HOOP and classifies them according to different criteria (topic, origin, format). HOOP results are formed by PDA reports (many of which are deliverables), outcome of tools, multimedia material, scientific publications and databases. Most of these data are text and numerical (.docx, .xlsx, .pdf), but there is also a significant amount of images and videos.
The online platforms (Urban Circular Bioeconomy Hub and Virtual Academy) are the main instrument for communication and dissemination of the public results of the project, making most of the data accessible. These platforms are intended to be available beyond project lifetime, but the data on them will be also accessible through the Circular Cities and Regions Initiative (CCRI) platform. The dissemination of results follows the principle 'as open as possible, as closed as necessary'. In addition, a certain amount of peer-reviewed scientific publications will be generated, with special focus on citizen science actions.
HOOP Consortium will ensure that results are made findable, accessible, interoperable and reusable (FAIR), respecting the restrictions of IPR and ethics (personal data protection). Scientific publications, their related metadata and underlying data will be stored in a public and certified repository, adapting to the multidisciplinary character of HOOP (Zenodo). This repository provides a safe long-term storage and backup of project results.
This deliverable is the second version of the Data Management Plan submitted in M6. This update takes place in the context of the second periodic evaluation assessment, including data which had not been considered in the Version 1 and updating aspects which had not been defined then. However, the DMP is a living document which will be updated along the project when significant changes take place.
D4.6: Semantic Interoperable Middleware - Interim Version
Creators: name: Hanssen, Bård Johan
name: Haro, Peter Halland
name: Vennesland, Audun
Publisher: name: Zenodo
Year: 2020

description: D4.6 describes the status and future developments of the semantic interoperable middleware for the DWC project. It introduces the concepts and components that are utilized in order to build the middleware and discusses how these are used and will be further developed in cooperation with the Milan and Paris cases in DWC.
description: Version (v0.1.0) submitted to EC. Acces to interim version is restricted, but final version will be public.
Driven Brownian transport through arrays of symmetric obstacles
Creators: name: Ghosh, P. K.
name: Hanggi, P.
name: Marchesoni, F.
name: Martens, S.
name: Nori, F.
name: Schimansky-Geier, L.
name: Schmid, G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We numerically investigate the transport of a suspended overdamped Brownian particle which is driven through a two-dimensional rectangular array of circular obstacles with finite radius. Two limiting cases are considered in detail, namely, when the constant drive is parallel to the principal or the diagonal array axes. This corresponds to studying the Brownian transport in periodic channels with reflecting walls of different topologies. The mobility and diffusivity of the transported particles in such channels are determined as functions of the drive and the array geometric parameters. Prominent transport features, like negative differential mobilities, excess diffusion peaks, and unconventional asymptotic behaviors, are explained in terms of two distinct lengths, the size of single obstacles (trapping length) and the lattice constant of the array (local correlation length). Local correlation effects are further analyzed by continuously rotating the drive between the two limiting orientations.
description: 10 pages 13 figures
Robert Lepage: anatomia di un regista
Creators: name: Boato, Giulio
Publisher: name: Antropologia e Teatro. Rivista di Studi
Year: 2012

description: Abstract – IT Robert Lepage è uno dei registi più rilevanti del panorama teatrale internazionale contemporaneo. L’articolo cerca di fornire una sintetica analisi della poetica del regista soffermandosi in particolar modo sulle nozioni di “montaggio” e di “immagine” al fine di definire il rapporto tra tecnologia e linguaggio in teatro. L’analisi di due spettacoli di Lepage presentati in occasione del Napoli Teatro Festival Italia (edizioni 2010 e 2011) alimenta la riflessione teorica che si snoda seguendo una metafora anatomica: analizzare separatamente (sezionando come il chirurgo) le varie componenti narrative e formali del modus operandi lepagiano permette di comprendere più agevolmente l’architettura organica dell’insieme Abstract – FR Robert Lepage est un des metteurs en scène les plus remarqués de la scène théâtrale internationale contemporaine. L’article cherche à fournir une analyse synthétique de l’art poétique du metteur en scène en se concentrant en particulier sur les notions de « montage » et « image » afin d’en définir le rapport entre technologie et langage au théâtre. L’analyse de deux spectacles de Lepage présentés pendant le Napoli Teatro Festival Italia (éditions 2010 et 2011) alimente la réflexion théorique qui se développe selon une métaphore anatomique : à la manière d'un chirurgien disséquant un corps, on analysera séparément les différentes composantes narratives et formelles utilisées par Lepage afin de comprendre plus facilement l’architecture organique de l’ensemble. Abstract – EN Robert Lepage is one of the most significant directors on the international and contemporary theatre scene. The article tries to provide a synthetic analysis of the director’s work: focusing on the notions of “editing” and “image”, it defines the relation between technology and language in theatre. The analysis of two pieces of theatre presented at the Napoli Teatro Festival Italia (editions 2010 and 2011) feeds the theoretical reflection which follows an “anatomic” metaphor. As the surgeon dissects, we will analyse the different narrative and formal components to understand the organic architecture of Lepage’s theatre.
description: Antropologia e Teatro. Rivista di Studi, N. 3 (2012)
International development partnerships and diffusion of renewable energy technologies in developing countries: cases in Latin America
Creators: name: Platonova, Inna
Publisher: name: Environmental Design
Year: 2012
Subjects: subject: Business Administration--Management
subject: Social Structure and Development
subject: Environmental Sciences
subject: Energy
subject: international development partnerships
subject: international NGOs
subject: diffusion of renewable energy technologies
subject: remote rural communities
subject: Developing Countries
subject: Latin America

description: Access to energy is vital for sustainable development and poverty alleviation, yet billions of people in developing countries continue to suffer from constant exposure to open fires and dangerous fuels, such as kerosene. Renewable energy technologies are being acknowledged as suitable solutions for remote rural communities in much of the developing world and international development non-governmental organizations (NGOs) increasingly play important roles in the diffusion of these technologies via development partnerships. While these partnerships are widely promoted, many questions related to their functioning and effectiveness remain open. To advance the theory and practice, this interdisciplinary exploratory research provides in-depth insights into the nature of international NGO-driven development partnerships in rural renewable energy and their effectiveness based on the case studies in Talamanca, Costa Rica and Cajamarca, Peru. The analysis of the nature of development partnerships shows that partnerships in the case studies differ in structure, size and diversity of actors due to differentiation in the implementation strategies, technological complexities, institutional and contextual factors. A multi-theoretical approach is presented to explain the multiple drivers of the studied development partnerships. The research highlights partnership constraints related to the provision of rural renewable energy, the organizational type and institutional environments. Based on the case studies this research puts forward theoretical propositions regarding the factors that affect the effectiveness of the partnerships. In terms of the partnership dynamics dimension, several key factors of success are confirmed from the existing literature, namely shared values and goals, complementary expertise and capacities, confidence and trust, clear roles and responsibilities, effective communication. Additional factors identified are personality match and continuity of staff. In terms of the partnership outcomes dimension, a previously under-researched aspect of partnerships, this study found that success was associated with a local champion who is trusted by the community, has the resources and skills to educate and engage the community and build capacities for sustainable provision of energy services, and institutionalizes its learning processes. Providing affordable technological solutions that meet people’s needs and are developed in a participatory way are other important factors found to be positively associated with the effectiveness of the studied partnerships.
Light: The Fundamental Expression
Creators: name: Dunkley, Kirk
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Fine Arts
subject: Light
subject: Art
subject: Installation
subject: Sculpture
subject: Science
subject: technology
subject: Space
subject: Time
subject: Movement
subject: Infinity
subject: Kinetic

description: This paper is in support of two years of artistic research concerning ideas about light as the ultimate medium for sculptural expression. Specifically, this paper makes a case for light as the ultimate expression of movement, space, time, and the notion of infinity. Curiosity is a human condition. We make observations about our environment, embark on scientific and artistic explorations, and attempt to formulate and answer questions. Of the senses that we have, vision is the most pronounced, and is prominent in the way that we make these observations. The paper takes this a step further to show how light is fundamental to the human visual experience, and is the foundation for information that we gather about our environment. The writings go on to discuss man’s fascination with light and movement in the environment, and how artists and scientists have explored light as a material, a medium, a signifier of time, and an indicator of space. The paper examines how parallel discoveries in science and fine art have informed the advancement of technologies used to explore and articulate light, leading to increasingly minimalist examples of kinetic light-based artistic expressions. Examples are presented showing the evolution of kinetic art and its convergence with light-based explorations. In tandem with technological advances, this convergence and evolution has resulted in an ultimate expression of space, time, and movement to date, the LASER. The paper concludes by discussing the evolution of my own work throughout the course of the program. I outline my transformation as an artist, moving from the creation of tangible artifacts to the creation of light-based installations, and my own explorations with various types of light technologies to articulate movement, space, time and the notion of infinity.
Cultura. Dalla complessità all'impoverimento, di Francesco Remotti
Creators: name: Mangiameli, Gaetano
Publisher: name: Antropologia e Teatro. Rivista di Studi
Year: 2012
Subjects: remotti; cultura; impoverimento; umanità

description: Antropologia e Teatro. Rivista di Studi, N. 3 (2012)
Catalytic Growth of N-doped MgO on Mo(001)
Creators: name: Grob, M.
name: Pratzer, M.
name: Ležaić, M.
name: Morgenstern, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A simple pathway to grow thin films of N-doped MgO (MgO:N), which has been found experimentally to be a ferromagnetic d0 insulator, is presented. It relies on the catalytic properties of a Mo(001) substrate using growth of Mg in a mixed atmosphere of O2 and N2. Scanning tunneling spectroscopy reveals that the films are insulating and exhibit an N-induced state slightly below the conduction band minimum.
600.000 e altre azioni teatrali per Giuliano Scabia, di Stefano Casi
Creators: name: Marino, Massimo
Publisher: name: Antropologia e Teatro. Rivista di Studi
Year: 2012
Subjects: casi; Scabia; azioni teatrali; Torino

description: Antropologia e Teatro. Rivista di Studi, N. 3 (2012)
title: Transferability of data-driven models to predict urban pluvial flood water depth in Berlin, Germany
Creators: name: Seleem, Omar
name: Ayzel, Georgy
name: Bronstert, Axel
name: Heistermann, Maik
Publisher: name: Universitätsverlag Potsdam
Year: 2023
Subjects: subject: 910 Geografie, Reisen

description: Data-driven models have been recently suggested to surrogate computationally expensive hydrodynamic models to map flood hazards. However, most studies focused on developing models for the same area or the same precipitation event. It is hence not obvious how transferable the models are in space. This study evaluates the performance of a convolutional neural network (CNN) based on the U-Net architecture and the random forest (RF) algorithm to predict flood water depth, the models’ 5 transferability in space and performance improvement using transfer learning techniques. We used three study areas in Berlin to train, validate and test the models. The results showed that (1) the RF models outperformed the CNN models for predictions within the training domain, presumable at the cost of overfitting; (2) the CNN models had significantly higher potential than the RF models to generalize beyond the training domain; and (3) the CNN models could better benefit from transfer learning technique to boost their performance outside training domains than RF models.
description: Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe; 1323
Multicarrier Transmission As an Alternative for GPS C/A Code : Simulation and Verification
Creators: name: Guan, Xiaoyu Winnie
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Engineering--Electronics and Electrical
subject: Multicarrier Transmission
subject: GPS C/A code

description: This thesis mainly focuses on using multi-carrier code as an alternative for the C/A code currently transmitted in GPS System. As a substitution, the most critical concern that we have is the Doppler shift, which will Cause the overlap of the sub-carriers transmitted from di erent satellites. The range estimation will be harmed and the positioning failure could be happened at the same time. We introduced two analyses: the probability of collision and probability of position failure between satellites. After that, we work on ensuring the system level performance of our multi-carrier code. To achieve that, we are adding a pseudo random phase on each sub-carrier inside the transmitted signal from each satellite. Theoretical analysis is also provided to assess the performance of our proposed multi-carrier code over code delay and Doppler shift. The result shows that our codes have good performance and is an acceptable alternative to the current GPS signal.
Muon deficit in simulations of air showers inferred from AGASA data
Creators: name: Gesualdi, F.
name: Supanitsky, D.
name: Etchegoyen, A.
Publisher: name: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Year: 2022

description: Multiple experiments reported evidences of a muon deficit in air shower simulations with respect to data, which increases with the primary energy. In this work, we study the muon deficit using measurements of the muon density at 1000 m from the shower axis obtained by the Akeno Giant Air Shower Array (AGASA). The selected events have reconstructed energies in the range $18.83\,\leq\,\log_{10}(E_{R}/\textrm{eV})\,\leq\,19.46$ and zenith angles $\theta\leq 36^{\circ}$. We compare these muon density measurements to proton, iron, and mixed composition scenarios, obtained by using the high-energy hadronic interaction models EPOS-LHC, QGSJetII-04, and Sibyll2.3c. We find that AGASA data are compatible with a heavier composition, lying above the predictions of the mixed composition scenarios. The average muon density divided by the energy in AGASA data is greater than in the mixed composition scenarios by a factor of $1.49\pm0.11\,\textrm{(stat)}\pm^{0.49}_{0.30}\,\textrm{(syst)}$, $1.54\pm0.12\,\textrm{(stat)}\pm^{0.50}_{0.31}\,\textrm{(syst)}$, and $1.66\pm0.13\,\textrm{(stat)} \pm ^{0.54}_{0.34}\,\textrm{(syst)}$ for EPOS-LHC, Sibyll2.3c, and QGSJetII-04, respectively. We interpret this as further evidence of a muon deficit in air shower simulations at the highest energies.
Quantifying the Multivariate ENSO Index (MEI) coupling to CO2 concentration and to the length of day variations
Creators: name: Mazzarella, A.
name: Giuliacci, A.
name: Scafetta, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The El Niño Southern Oscillation (ENSO) is the Earth's strongest climate fluctuation on inter-annual time-scales and has global impacts although originating in the tropical Pacific. Many point indices have been developed to describe ENSO but the Multivariate ENSO Index (MEI) is considered the most representative since it links six different meteorological parameters measured over the tropical Pacific. Extreme values of MEI are correlated to the extreme values of atmospheric CO2 concentration rate variations and negatively correlated to equivalent scale extreme values of the length of day (LOD) rate variation. We evaluate a first order conversion function between MEI and the other two indexes using their annual rate of variation. The quantification of the strength of the coupling herein evaluated provides a quantitative measure to test the accuracy of theoretical model predictions. Our results further confirm the idea that the major local and global Earth-atmosphere system mechanisms are significantly coupled and synchronized to each other at multiple scales.
description: Theoretical Applied Climatology (2012)
On viscous flow and azimuthal anisotropy of quark-gluon plasma in strong magnetic field
Creators: name: Tuchin, Kirill
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate the viscous pressure tensor of the quark-gluon plasma in strong magnetic field. It is azimuthally anisotropic and is characterized by five shear viscosity coefficients, four of which vanish when the field strength eB is much larger than the plasma temperature squared. We argue, that the azimuthally anisotropic viscous pressure tensor generates the transverse flow with asymmetry as large as 1/3, even not taking into account the collision geometry. We conclude, that the magnitude of the shear viscosity extracted from the experimental data ignoring the magnetic field must be underestimated.
description: 10 pages
The effects of topic title on language comprehension and working memory resources
Creators: name: Makaroff, Amy
Publisher: name: University of British Columbia
Year: 2010

description: This study was designed to explore the effects of topic title and simulated high frequency hearing loss on language comprehension by normal, healthy adults. Thirty-two adult participants with no history of cognitive deficits participated in this study. Each participant listened to four different passages in four different conditions. The four conditions were: (1) title with normal hearing, (2) title with simulated high frequency hearing loss, (3) no title with normal hearing and (4) no title with simulated high frequency hearing loss. Passages were presented segment-by-segment using the auditory moving window technique; most segments were short sentences or clauses. Participants listened to each segment at their own pace by pressing a key. Pause times between segments and overall listening time were recorded for each passage. After listening to each passage, participants were asked to recall out loud what they understood and remembered from the passage. Recall was transcribed and percentages of recalled propositions were calculated. In order to observe changes in processing across a passage, mean pause duration values were also compared across passage position (beginning, middle and end of a passage). The results showed that topic titles facilitated listening comprehension, as shown through better recall performance and reduced processing time. The knowledge of topic titles also reduced the time required for processing information at the beginning of the passage, showing that the knowledge of topic titles facilitates the building of mental representations. The simulated high frequency hearing loss condition did not prove to consistently tax working memory resources during language comprehension. The findings also provided evidence about the relationship between working memory ability and recall performance. Overall, these findings are consistent with the predictions of current language comprehension models.
Mobile
Creators: name: Ostrowski, Arthur
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Fine Arts
subject: Mass Communications
subject: Social Network
subject: Performance
subject: Internet
subject: Art
subject: Installation
subject: Sculpture
subject: motorcycle

description: Mobile combines the performance of fabricating a custom motorcycle with the performative act of documentation to investigate the relationships that we form with objects, the connections that are created by objects and the phenomenon of communicating experiences through visual artifacts over social media. The cell phone camera is utilized in the process of this artwork to capture every moment of the motorcycle build, from the exciting occasions to the mundane everyday instances in order to represent the experience to a public audience in its totality. By sharing the artistic interpretation of the building experience through images over the social network Instagram, their function is transformed. The photographs no longer serve to retain memories, but they become a catalyst for communication and connection as the experience is shared globally through this form of visual currency.
Modified equipartition calculation for supernova remnants
Creators: name: Arbutina, B.
name: Urosevic, D.
name: Andjelic, M. M.
name: Pavlovic, M. Z.
name: Vukotic, B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Determination of the magnetic field strength in the interstellar medium is one of the most complex tasks of contemporary astrophysics. We can only estimate the order of magnitude of the magnetic field strength by using a few very limited methods. Besides Zeeman effect and Faraday rotation, the equipartition or the minimum-energy calculation is a widespread method for estimating magnetic field strength and energy contained in the magnetic field and cosmic ray particles by using only the radio synchrotron emission. Despite of its approximate character, it remains a useful tool, especially when there is no other data about the magnetic field in a source. In this paper we give a modified calculation which we think is more appropriate for estimating magnetic field strengths and energetics in supernova remnants (SNRs). Finally, we present calculated estimates of the magnetic field strengths for all Galactic SNRs for which the necessary observational data are available. The web application for calculation of the magnetic field strength of SNRs is available at http://poincare.matf.bg.ac.rs/~arbo/eqp/.
description: 19 pages, 4 figures, 1 table, accepted for publication in ApJ; for associated web application, see http://poincare.matf.bg.ac.rs/~arbo/eqp/
THE QUESTION OF TRANSITION TO "GREEN" ECONOMY AND ITS MAIN LEGAL PROBLEMS
Creators: name: Rasulov Bakhtiyor Shavkatovich Master's student of Tashkent State Law University, majoring in environmental law and sustainable development
Publisher: name: Zenodo
Year: 2023

description: In the article, the need for rational and effective use of limited resources is the main issue of the economy and a guarantee for the stabilization process of the "green economy" and its legal issues are highlighted in the article. The author's opinion and suggestions are noted in the article.
Key words: Green economy, concept, strategy, technology, economy, sustainable development, investment, energy, anthropogenic, ecology, innovation, greening.
The moving frame method for iterated-integrals: Orthogonal invariants
Creators: name: Diehl, Joscha
name: Preiß, Rosa
name: Ruddy, Michael
name: Tapia, Nikolas
Publisher: name: Weierstrass Institute
Year: 2020
Subjects: subject: Signature
subject: geometric invariants
subject: moving frame
subject: orthogonal group
subject: 60L10
subject: 14L24

description: We explore the algebraic properties of a generalized version of the iterated-sums signature, inspired by previous work of F. Kiraly and H. Oberhauser. In particular, we show how to recover the character property of the associated linear map over the tensor algebra by considering a deformed quasi-shuffle product of words on the latter. We introduce three non-linear transformations on iterated-sums signatures, close in spirit to Machine Learning applications, and show some of their properties.
Design of Asymmetric Slope Fractional Band Reject Filters
Creators: name: Marathe, Akshay Anant
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Engineering--Electronics and Electrical
subject: Fractional Filters
subject: Notch Filter
subject: High Q
subject: Asymmetric Slope
subject: FPAA

description: In this work, we propose new techniques of designing asymmetric-slope band reject ﬁlters. Two new non-conventional transfer functions are presented based on the concept of fractional Laplacian operator, s^(α) where 0 < α < 1. It is possible to achieve asymmetric slopes, large values of notch magnitude up to 90 dB and high Q values for appropriate values of α using these ﬁlters. In addition, unlike integer order ﬁlters, independent control of slopes above the notch frequency can be achieved by simply changing the values of α. Different circuit realization techniques based on fractional ﬂoating inductor, multiple ampliﬁer biquad (MAB) and ﬁeld programmable analog array (FPAA) are also presented. The operation of these circuits is veriﬁed by plotting PSPICE simulation results for different values of α and showing its comparison with experimental results.
Ipotesi per l'attore del futuro
Creators: name: Galignano, Marco
Publisher: name: Antropologia e Teatro. Rivista di Studi
Year: 2012

description: Il teatro è in subbuglio perché il mondo tutto è in subbuglio. Ciclicità probabilmente, nel presente difficile. Crisi. Storiografia, società, umanità, nuove forme di teatro, scontro/incontro di etnologie, scienza nuova in fermento (biologia, fisica, chimica, tecnologia, astronomia), nuovi orizzonti di conoscenza, attori che si cercano, contaminazioni artistiche di genere, pedagogie da rifare. Caos. Tradizioni sconvolte e nuove necessità. Economia allo spasmo. Eppure esiste una strada positiva, attuabile nella sfera del privato, del personale. La salute, intesa come scopo di esistenza; la poesia, in connessione con il mistero ontologico; l’arte, specchio e riflesso della vita, potrebbero essere i capisaldi di una nuova integrazione, psicofisica, volta alla riscoperta del naturale, del benessere umano. Si cerca qui di proporre delle strade che vadano in questa direzione. Ipotesi di vita, per il teatro, per l’attore. Per l’essere umano nel nuovo millennio. Ipotesi su come possano fondersi le conoscenze più avanzate sulla salute organica dell’essere umano, recuperando la sapienza antica a volte incomprensibilmente dimenticata; la parte più aulica, nel senso di elevata, raffinata e funzionale dell’arte dello spettacolo. Theatre is in a turmoil, because the whole world is in a turmoil. Cyclical pattern, perhaps, in a difficult present time. Crisis. Historiography, society, humankind, new ways of making theatre, ethnological encounter and clashing, new science in a state of ferment (biology, physics, chemistry, technology, astronomy), new horizons of knowledge, actors in search of each other, artistic gender contamination, science of education to be built anew. Chaos. Upset tradition and new needs. Suffering economy. Nevertheless, a positive way does exist and it’s workable in your own personal environment. Health meant as a goal of existence, poetry connected with ontological mystery and art as a mirror and reflection of life could actually be the foundation of a new psychophysical integration oriented to the rediscovery of the natural way and of human wellbeing. Here we attempt to suggest paths that lead in this direction. Hypotheses for life, for the theatre, for the actor and for the human being in the new millennium. Hypotheses on how all forms of cutting edge knowledge on organic human health can be combined, while recovering ancient knowledge, sometimes inexplicably lost; the most sacred (meaning the most elevated, refined - and useful) part of the theatrical art.
description: Antropologia e Teatro. Rivista di Studi, N. 3 (2012)
Asymptotic Expansion for Distribution of Markovian Random Motion
Creators: name: Pogorui, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper we study an asymptotic expansion for the distribution of a random motion of a particle driven by a Markov process in diffusion approximation. We show that the singularly perturbed equation of a Markovian random motion can be reduced to the regularly perturbed equation for the distribution of the random motion.