cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Very fast X-ray spectral variability in Cygnus X-1: Origin of the hard and soft-state emission components
Creators: name: Skipper, Chris J.
name: McHardy, Ian M.
name: Maccarone, Thomas J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The way in which the X-ray photon index, Γ, varies as a function of count rate is a strong diagnostic of the emission processes and emission geometry around accreting compact objects. Here we present the results from a study using a new, and simple, method designed to improve sensitivity to the measurement of the variability of Γ on very short time-scales. We have measured Γ in ~2 million spectra, extracted from observations with a variety of different accretion rates and spectral states, on time-scales as short as 16 ms for the high mass X-ray binary Cygnus X-1, and have cross-correlated these measurements with the source count rate. In the soft-state cross-correlation functions (CCFs) we find a positive peak at zero lag, stronger and narrower in the softer observations. Assuming that the X-rays are produced by Compton scattering of soft seed photons by high energy electrons in a corona, these results are consistent with Compton cooling of the corona by seed photons from the inner edge of the accretion disc, the truncation radius of which increases with increasing hardness ratio. The CCFs produced from the hard-state observations, however, show an anti-correlation which is most easily explained by variation in the energy of the electrons in the corona rather than in variation of the seed photon flux. The hard-state CCFs can be decomposed into a narrow anti-correlation at zero lag, which we tentatively associate with the effects of self-Comptonisation of cyclo-synchrotron seed photons in either a hot, optically thin accretion flow or the base of the jet, and a second, asymmetric component which we suggest is produced as a consequence of a lag between the soft and hard X-ray emission. The lag may be caused by a radial temperature/energy gradient in the Comptonising electrons combined with the inward propagation of accretion rate perturbations.
description: 12 pages, 14 figures; accepted for publication in Monthly Notices of the Royal Astronomical Society, 2013 June 7
Manufacturing of high-performance Bi-metal bevel gears by combined deposition welding and forging
Creators: name: Chugreeva, Anna
name: Mildebrath, Maximilian
name: Diefenbach, Julian
name: Barroi, Alexander
name: Lammers, Marius
name: Hermsdorf, Jörg
name: Hassel, Thomas
name: Overmeyer, Ludger
name: Behrens, Bernd-Arno
Publisher: name: Basel : MDPI AG
Year: 2018
Subjects: subject: Bi-metal bevel gear
subject: Die forging
subject: Hot deformation
subject: Tailored forming
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The present paper describes a new method concerning the production of hybrid bevel gears using the Tailored Forming technology. The main idea of the Tailored Forming involves the creation of bi-metal workpieces using a joining process prior to the forming step and targeted treatment of the resulting joint by thermo-mechanical processing during the subsequent forming at elevated temperatures. This improves the mechanical and geometrical properties of the joining zone. The aim is to produce components with a hybrid material system, where the high-quality and expensive material is located in highly stressed areas only. When used appropriately, it is possible to reduce costs by using fewer high-performance materials than in a component made of a single material. There is also the opportunity to significantly increase performance by combining special load-tailored high-performance materials. The core of the technology consists in the material-locking coating of semi-finished parts by means of plasma-transferred-arc welding (PTA) and subsequent forming. In the presented investigations, steel cylinders made of C22.8 are first coated with the higher-quality heat-treatable steel 41Cr4 using PTA-welding and then hot-formed in a forging process. It could be shown that the applied coating can be formed successfully by hot forging processes without suffering any damage or defects and that the previous weld structure is completely transformed into a homogeneous forming-typical structure. Thus, negative thermal influences of the welding process on the microstructure are completely neutralized.
Inverse Transitions in the Ghatak-Sherrington model with Bimodal Random Fields
Creators: name: Moraisa, C. V.
name: Lazo, M. J.
name: Zimmer, F. M.
name: Magalhães, S. G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The present work studies the Ghatak-Sherrington (GS) model with the presence of a longitudinal magnetic random field (RF) $h_{i}$ following a bimodal distribution. The model considers a random bond interaction $J_{i,j}$ which follows a Gaussian distribution with mean $J_0/N$ and variance $J^2/N$. This allows us to introduce the bond disorder strength parameter $J/J_0$ to probe the combined effects of disorder coming from the random bond and the discrete RF over unusual phase transitions known as inverse transitions (ITs). The results within a mean field approximation indicate that these two types of disorder have complete distinct roles for the ITs. They indicate that bond disorder creates the necessary conditions for the presence of inverse freezing or even inverse melting depending on the bond disorder strength, while the RF tends to enforce mechanisms that destroy the ITs.
Implementation of full-area-deposited electron-selective TiOx layers into silicon solar cells
Creators: name: Titova, Valeriya
name: Schmidt, Jan
Publisher: name: College Park, MD : American Institute of Physics
Year: 2018
Subjects: subject: Aluminum coatings
subject: Aluminum compounds
subject: Amorphous films
subject: Amorphous silicon
subject: Atomic layer deposition
subject: Carrier lifetime
subject: Efficiency
subject: Open circuit voltage
subject: Oxide films
subject: Silicon compounds
subject: Silicon oxides
subject: Solar cells
subject: Tin oxides
subject: Titanium oxides
subject: Ultrathin films
subject: Work function
subject: Carrier lifetime measurements
subject: Indium tin oxide layers
subject: Interface passivation
subject: Internal quantum efficiency
subject: Lateral conductance
subject: Selective contacts
subject: Surface recombination velocities
subject: Ultrathin silicon oxide
subject: Silicon solar cells
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We examine two different silicon solar cell designs featuring full-area electron-selective contacts based on ultrathin (2-3 nm) titanium oxide (TiOx) films deposited by atomic layer deposition. The first cell design applies a layer stack to the cell front, which is composed of an ultrathin intrinsic amorphous silicon (i-a-Si:H) layer for interface passivation, the TiOx film and an indium tin oxide (ITO) layer to provide a good lateral conductance for electrons to the metal fingers. Whereas carrier lifetime measurements on test structures promise high implied open-circuit voltages Voc up to 726 mV, the realized solar cells achieve disappointingly low Voc values <400 mV. The J-V parameters of this cell type are negatively affected by a reverse diode occurring due to the contacting of the TiOx by the high-work function ITO layer. In the second cell type, we implement a layer stack to the cell rear, which is composed of an ultrathin silicon oxide (SiOy) layer, the TiOx film and a full-area-deposited aluminum (Al) layer. Initial Voc values of these cells are relatively low (<600 mV), but improve significantly after annealing at 350°C. The best cell featuring a SiOy/TiOx/Al rear contact achieves an open-circuit voltage of 661 mV and an efficiency of 20.3%. No reverse diode is observed, which is attributed to the lower work function of the Al compared to ITO in the first cell design. From internal quantum efficiency measurements, we extract a rear surface recombination velocity Srear of (52±20) cm/s for our best cell, which is well compatible with efficiencies exceeding 23%.
Supplementary document for Reconfigurable VO2 metasurfaces with hybrid electro-optical control: manipulating THz radiation with 0.3 W/cm2 light - 6440947.pdf
Creators: name: Kaydashev, Vladimir
name: Slavich, Alexander
name: Domaratskiy, Ivan
name: Zhukov, Sergey
name: Kirtaev, Roman
name: Mylnikov, Dmitry
name: ALYMOV, GEORGY
name: Kutepov, Maxim
name: Kaidashev, Evgeny
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplementary
Detection of selective sweeps in cattle using genome-wide SNP data
Creators: name: Ramey, Holly R.
name: Decker, Jared E.
name: McKay, Stephanie D.
name: Rolf, Megan M.
name: Schnabel, Robert D.
name: Taylor, Jeremy F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Genomics (q-bio.GN)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: The domestication and subsequent selection by humans to create breeds of cattle undoubtedly altered the patterning of variation within their genomes. Strong selection to fix advantageous large-effect mutations underlying domesticability, breed characteristics or productivity created selective sweeps in which variation was lost in the chromosomal region flanking the selected allele. Selective sweeps have been identified in the genomes of many species including humans, dogs, horses, and chickens. We attempt to identify regions of the bovine genome that have been subjected to selective sweeps. Two datasets were used for the discovery and validation of selective sweeps via the fixation of alleles at a series of contiguous SNP loci. BovineSNP50 data were used to identify 28 putative sweep regions among 14 cattle breeds. Affymetrix BOS 1 prescreening assay data for five breeds were used to identify 114 regions and validate 5 regions identified using the BovineSNP50 data. Many genes are located within these regions; however, phenotypes that we predict to have historically been under strong selection include horned-polled, coat color, stature, ear morphology, and behavior. The identified selective sweeps represent recent events associated with breed formation rather than ancient events associated with domestication. No sweep regions were shared between indicine and taurine breeds reflecting their divergent selection histories. A primary finding of this study is the sensitivity of results to assay resolution. Despite the bias towards common SNPs in the BovineSNP50 design, false positive sweep regions appear to be common due to the limited resolution of the assay. This assay design bias leads to the detection of breed-specific sweep regions, or regions shared by a small number of breeds, restricting the suite of selected phenotypes detected to primarily those associated with breed characteristics.
description: 40 pages, 2 figures
A Systematically Empirical Evaluation of Vulnerability Discovery Models: a Study on Browsers' Vulnerabilities
Creators: name: Nguyen, Viet Hung
name: Massacci, Fabio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: A precise vulnerability discovery model (VDM) will provide a useful insight to assess software security, and could be a good prediction instrument for both software vendors and users to understand security trends and plan ahead patching schedule accordingly. Thus far, several models have been proposed and validated. Yet, no systematically independent validation by somebody other than the author exists. Furthermore, there are a number of issues that might bias previous studies in the field. In this work, we fill in the gap by introducing an empirical methodology that systematically evaluates the performance of a VDM in two aspects: quality and predictability. We further apply this methodology to assess existing VDMs. The results show that some models should be rejected outright, while some others might be adequate to capture the discovery process of vulnerabilities. We also consider different usage scenarios of VDMs and find that the simplest linear model is the most appropriate choice in terms of both quality and predictability when browsers are young. Otherwise, logistics-based models are better choices.
description: 15 pages
CFC-Multiscalar Challenges : Land-Links: Multi-Cities, Agro Landscapes, Hyper-Foods, Inno-Fields. 5 Factors for a Balanced Geo-Urbanity
Creators: name: Navarro Gausa, Manuel
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: geo-urbanity
subject: multi-cities
subject: landscape links
subject: new agriculture
subject: innovation
subject: proactive sustainability
subject: Konferenzschrift
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: The new contemporary multi-city, the fractal, irregular and networked poly-polis (Gausa 2018), needs the landscape, as a eco-systemic and proactive infrastructure, conceived not only as a network of ‘green open spaces’. The in-between transversal landscape of the new city needs agriculture to ensure its positive and relational conservation. Agriculture, especially if developed in low or medium intensity contexts, requires programmatic innovative mixture and diversity— associated with its uses and crops, but also with an agro-tourism based on zero kilometre hospitality, gastronomy, energy production, digital manufacturing, technical research—to ensure its own resilient livelihood capacity. Creative Food Cycles (CFC) covers all these scales and levels of action—with a socio-cultural activism approach—promoting a strategic and innovative integration, from the territorial and urban perspective to the creative-social dimension and to the scale of product design. The food factor, from a mere productive indicator, becomes an agent inducing new sustainable and innovative processes.
The Role of Food Plans and Strategies in Shaping Creative Food Spaces in Italy
Creators: name: Lazzarini, Luca
name: Mareggi, Marco
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: food planning
subject: food plan
subject: food strategy
subject: sustainability
subject: local authority
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: The article aims at improving the understanding of the contribution of food plans in the transition towards more sustainable food systems. The research presents the results of a survey of all the food plans developed until today in Italy. The methodology is based on a documentary analysis according to which an analytical framework was built to investigate geographies, visions, and objectives of the plans; the governance mechanisms, policies, and actions to achieve these objectives; the actors involved in the decision-making process; and the relations with statutory planning policies. A specific focus is oriented to investigate if and how the plans interpret food as a resource able to produce positive impacts on the economic and environmental sustainability of the food system. Although food plans have triggered a process of cultural and institutional enhancement allowing to coordinate and integrate different policies, the research has shown that most of them have not found effective applications and created good performance results.
title: Практикум по технологии обработки текстильных материалов
Creators: name: ELS IPR BOOKS
Publisher: name: Издательство Владимирского государственного университета
Year: 2017

description: Цель практикума ‒ формирование предметных компетенций для обучения технологии обработки текстильных материалов в технологической подготовке обучающихся в общеобразовательных учреждениях. Отражены общие основы технологии обработки текстильных материалов. Представлены примеры технологии изготовления рабочей, поясной и плечевой одежды. Практикум содержит теоретические и практические материалы, контрольные вопросы для проверки усвоения полученных знаний студентами. Материал изложен в последовательности, соответствующей обучению учащихся в системе общего образования по программе «Технология», направление «Обслуживающий труд»: ручные, машинные, влажно-тепловые работы, технология изготовления рабочей одежды, поясных швейных изделий, плечевых изделий с цельнокроеным рукавом, плечевых изделий с втачным рукавом. Предназначен для подготовки бакалавров по направлению 44.03.05 – Педагогическое образование, профили: «Технология». «Экономическое образование». Рекомендовано для формирования профессиональных компетенций в соответствии с ФГОС ВО.
Designing Food Cycles: Three Pathways Toward Urban Resilience
Creators: name: Sposito, Sabrina
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: food cycles
subject: food flow
subject: practices
subject: prototypes
subject: pathways
subject: Konferenzschrift
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: This contribution refers to the creative actions led by the Leibniz University Hannover (LUH) in the framework of the Creative Food Cycles project. It gives an overview of current speculations and testing in designing food cycles, based on the notions of urban metabolism and resilient food systems. A selection of best practices contained in the Food Interaction Catalogue is presented to enlighten spatial qualities, societal benefits, and actors’ constellations being boosted creatively in the market, kitchen, and table setups. The nine prototypes conceived during the workshop ‘Food Cycles Pop-Up” are illustrated, as explorations and potential inventions for “urban food hotspots”. Finally, three pathways towards urban resilience are briefly traced towards a regional and local development based on food cycles.
Carex humilis Leysser
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. humilis Leysser Cat. 372. Bis 2150 m. l: Les Evouettes (J.); Van-Bas (Coquoz). - 2: Unter dem Portail de Fully bis 2150m (Garns); St-Romain (Becherer); Siders (Mantz, Becherer); Miege-Salgesch (Becherer); Hohtenn-Laden (Becherer und Schatzmann); Leiggern (Zwicky und Villaret). - 3: Mont-Chemin (Closuit); Vence (Guyot); unter Verbier (Koch); Nendaz (J.); Sitten-La Vernaz (Becherer); Val d'Herens (idem); LesPontisimVald'Anniviers (Sulger); Pfynwald (Mantz); Visp-Zeneggen (Becherer); Törbel (Stehler, Becherer); Zermatt (Becherer). - 3a: Gondo und Umgebung (Becherer). - 4: Termen-Bitsch (Becherer).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Creative Ecosystem Services for New Urban-Rural Communities: The "VàZapp" Experience
Creators: name: Cerreta, Maria
name: Clemente, Massimo
name: Daldanise, Gaia
name: Poli, Giuliano
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: creative ecosystem services
subject: capital stocks
subject: creative capital
subject: circular economy
subject: urban resilience
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: Food cycles, as dynamic and ever-changing systems, need flexible solutions to be co-designed and co-evaluated to generate benefits for people and the environment. Regenerating capital stocks of ecosystem services through urban-rural cooperation requires a “creative capital” which can continuously innovate the use of resources, skills, knowledge, and impact monitoring. Moreover, cultural creative enterprises generate a new value chain in which tangible and intangible assets join the “shared value” perspective to enable a new supply chain as a pillar of the circular economy paradigm. In this perspective, a model for a creative food cycles value chain has been designed, using a Stated Preference (SP) method. A social/ creative enterprise—called “VàZapp’” (Foggia, Apulia region)—has been selected as a case study for the testing of the proposed model. The research results allow preliminary reflections about the definition of “creative ecosystem services” as tools for overcoming some critical issues concerning urban-rural cooperation.
A near-infrared relationship for estimating black hole masses in active galactic nuclei
Creators: name: Landt, Hermine
name: Ward, Martin J.
name: Peterson, Bradley M.
name: Bentz, Misty C.
name: Elvis, Martin
name: Korista, Kirk T.
name: Karovska, Margarita
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Black hole masses for samples of active galactic nuclei (AGN) are currently estimated from single-epoch optical spectra using scaling relations anchored in reverberation mapping results. In particular, the two quantities needed for calculating black hole masses, namely, the velocity and the radial distance of the orbiting gas are derived from the widths of the Balmer hydrogen broad emission lines and the optical continuum luminosity, respectively. We have recently presented a near-infrared (near-IR) relationship for estimating AGN black hole masses based on the widths of the Paschen hydrogen broad emission lines and the total 1 micron continuum luminosity. The near-IR offers several advantages over the optical: it suffers less from dust extinction, the AGN continuum is observed only weakly contaminated by the host galaxy and the strongest Paschen broad emission lines Pa alpha and Pa beta are unblended. Here we improve the calibration of the near-IR black hole mass relationship by increasing the sample from 14 to 23 reverberation-mapped AGN using additional spectroscopy obtained with the Gemini Near-Infrared Spectrograph (GNIRS). The additional sample improves the number statistics in particular at the high luminosity end.
description: 16 pages, 9 figures, accepted by MNRAS
Socio-Ecological Connectivity for Productive, Circular and Resilient Territories. The Experience of the "Saturn" EIT Climate-KIC Pan European Project
Creators: name: Favargiotti, Sara
name: Pianegonda, Angelica
name: Betta, Alessandro
name: Andreola, Mattia
name: Forno, Francesca
name: Ciolli, Marco
name: Gretter, Alessandro
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: foodscape
subject: multifunctional landscape
subject: socio-ecological connectivity
subject: rural-urban connectivity
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: Since the European conference on Sustainable Cities and Towns happened in Aalborg in 1994 the urgency to promote a more balanced relationship and to enhance the reconnection between urban and rural areas became a matter of discussion in research and policy-making. A further important push towards the implementation of reconnection strategies occurred in 1997 with the European Conference on Rural Development. Nowadays, many stakeholders involved in territorial and landscape planning, in order to implement a new relationship between cities and countryside, aim to remove rural areas from margins, to bring citizens closer to the urgent need to safeguard the entire natural ecosystem, and to preserve rural areas and the ecosystem services they provide. The food system can be a key of reconnection between urban and rural areas and has a great impact on materials and energy flows in the metabolism of a city-region. The contribution will explore the spatial transformation of urban and rural landscapes in the city of Trento through a multidisciplinary lens on social dynamics and the governance of food policies.
From the Global Food System to the Local Dimension: The Urban Food Strategies
Creators: name: Tucci, Giorgia
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: food system
subject: urban food strategies
subject: food movements
subject: urban policies
subject: sustainability
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: European and global policies are increasingly moving towards new frontiers of sustainability, innovation and social inclusion. Many of the 2030 SDGs promoted by the UN, to which should refer all planning for the future development of cities, focus on urban food systems and waste food loss. Recently, alongside the forms of reaction activated by organized civil society, experiments related to the so-called urban food policies, linked with holistic urban approaches, in which cities are configured as new actors in the food systems, are spreading internationally. The big news compared to this type of approach, of a punctual and sectorial type, is represented by the promotion by cities of real integrated and multi-sectorial food strategies (Urban Food Strategies, UFS), characterized by a holistic approach to supply chains of development through eco-efficient cycles linked with multidimensional agro-food systems and the multidimensionality of food. The article focuses on understanding how the holistic agro-cultural and social systems intercept spaces, actors, re-sources and dynamics present in a city, moving from the food system to promote a new kind the of agro-urban integrated system of where innovative food and multi-scalar approaches are combined.
Spin coupling around a carbon atom vacancy in graphene
Creators: name: Casartelli, M.
name: Casolo, S.
name: Tantardini, G. F.
name: Martinazzo, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the details of the electronic structure in the neighborhoods of a carbon atom vacancy in graphene by employing magnetization-constrained density-functional theory on periodic slabs, and spin-exact, multi-reference, second-order perturbation theory on a finite cluster. The picture that emerges is that of two local magnetic moments (one π-like and one σ-like) decoupled from the π- band and coupled to each other. We find that the ground state is a triplet with a planar equilibrium geometry where an apical C atom opposes a pentagonal ring. This state lies ~0.2 eV lower in energy than the open-shell singlet with one spin flipped, which is a bistable system with two equivalent equilibrium lattice configurations (for the apical C atom above or below the lattice plane) and a barrier ~0.1 eV high separating them. Accordingly, a bare carbon-atom vacancy is predicted to be a spin-one paramagnetic species, but spin-half paramagnetism can be accommodated if binding to foreign species, ripples, coupling to a substrate, or doping are taken into account.
Trueque Based Urbanism
Creators: name: Diesch, Alissa
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: Bogotá
subject: megacity
subject: polycentric
subject: rural-urban linkages
subject: urban growth
subject: Konferenzschrift
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: Usme is a village and former municipality in the south of Bogotá. Urbanisation has transformed the social and spatial structure of the village deeply. Agrarian production and distribution has been affected strongly by the global trend of industrialisation of agriculture and changing agents in the field during the second half of the twentieth century, while at the same time a significant share of the area of the former municipality turned urban. Both processes are analysed in a parallel way with a focus on overlooked existing and changing relations and potentials of food cycles between rural and urban inhabitants and challenges regarding production and distribution of agrarian goods. The problems and solutions of food flows could represent alternative benchmarks for the sustainable future of the urban expansion area between the rural and the urban part of Usme. This analysis is developed in the framework of my PhD Thesis.
Incomplete-exclusion Statistical Mechanics in Non-collisional Violent Relaxation of Celestial Objects
Creators: name: Treumann, R. A.
name: Baumjohann, W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Violent relaxation has been proposed half a century ago to bear responsibility for non-collisional dynamics and formation of gravitationally bound systems of extended celestial objects (agglomeration of stars, galaxies, clusters of galaxies) when reaching an approximate equilibrium state which can be described thermodynamically. The Lynden-Bell equilibrium distribution of such systems, resulting from a spatial exclusion principle, had been shown to be an analog to the Fermi distribution of states in solid state physics. Real extended objects like galaxies do not completely exclude each other, however. Permitting for partial exclusion leads to a modification of the equilibrium distribution. Here we show that this case can be treated in analogy to a hypothetical incomplete population of Fermi states. An incomplete-exclusion equilibrium distribution is obtained which enters the violent relaxation theory.
description: 17 pages, no figures
Approach for the Analysis of Self-Cultivation as an Expression of the Resilient Capacities of Migrants in Barcelona During the Twentieth Century
Creators: name: Guillèn-Espallargas, Germán
name: Llop I Torné, Carles
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: self-culture
subject: self-building
subject: ecosistemic infraestructure
subject: migrant resilience
subject: urban agriculture
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: This paper offers an approach for the analysis of self-cultivation - as we define it - developed mainly by migrants who resorted to self-building during the twentieth century in Barcelona, Spain. Self-cultivation - as the object of study - fulfilled nutritional, ornamental, constructive, environmental, energetic, sanitary, and handcrafting functions, and most probably helped to improve the resilience of migrant communities in their transit between the rural world and the city. The evolving condition as well as the connecting migrant situation between factors such as origin, social class, and gender place this research in a privileged setting to observe social practices, especially with regards to plans and projects on urban ecosystem infrastructure based on greater social inclusiveness. Through the definition of the key factors for this investigation a proposition for the methodology to be developed is outlined, and also a sample of its application.
Electronic Structure and Quasiparticle Band Gap of Silicene Structures
Creators: name: Huang, Shouting
name: Kang, Wei
name: Yang, Li
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report first-principles results on the electronic structure of various silicene structures. For planar and simply buckled silicenes, we confirm their zero-gap nature and show a significant renormalization of their Fermi velocity by including many-electron effects. However, the other two recently proposed silicene structures exhibit a finite band gap, indicating that they are gapped semiconductors instead of previously expected Dirac-fermion semimetals. Moreover, our calculated quasiparticle gap quantitatively explains the recent angle-resolved photoemission spectroscopy measurements. In particular, the band gap of the latter two structures can be tuned in a wide range by applying strain, giving hope to bipolar-devices applications.
description: 5 pages, 5 figures
Food Cycles and Hydrogeological Risk Mitigation. The Kezersrande Natural Farm Project
Creators: name: Pitanti, Matilde
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: food cycles
subject: resilient design
subject: water-sensitive design
subject: natural farming
subject: river space
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: Being at the base of the development of all societies, in so many different levels: food - its culture, production, diffusion, and consumption have a central role in shaping more resilient societies and habitats. This contribution, presenting the Dutch case study of the Nature Farm of Kezersrande, aims to highlight the possibility and the opportunity of exchange between different systems. The design of resilient food cycles is not limited to influencing our society and behaviour, but it also can shape our territories and our cities, in order to achieve both positive ecological results and a wider social integration. The presented project shows the possibility of exchange and integration between a resilient management of hydrogeological risk and a circular and sustainable food production system.
Food Waste as a Transitional Key Factor Towards Circular Economy
Creators: name: Pericu, Silvia
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: food
subject: waste
subject: creativity
subject: circular economy
subject: sustainability
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: Food waste becomes raw material for new cycles. Based on this assumption, the paper explores the food life cycles by starting from the process of wasting and then going backwards in the circular process that generally begins with production. The paper proposes a journey through projects, experimentations, and startups where communities are put at the centre and, in a way, drive social innovation ahead of food industry and large-scale distribution. From processing food waste to produce new food or zero-miles products (such as sustainable packaging), to distributing surplus through innovative services for communities, ultimately this overview helps to orientate in the consumption to disposal phase. It proposes, indeed, new ways of recycling and reusing food waste as a resource for new ecological materials. These innovative prototypes have been developed as concrete actions with the aim to persuade users to change their behaviours, while simultaneously exploring cultural, social, and economic perceptions of food waste. These practices face the challenge of building an alternative economy in which the innovative social enterprises, addressing design-based culture, can play the fundamental role of social actors able to create new values alongside the economic ones.
Carex liparocarpos Gaudin
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. liparocarpos Gaudin (C. nitida Host) Cat. 370. Bis2900m: GornergratbeiZermatt (Braun-Blanquet1919);eineanderehoheStelle, ebenfallsbei Zermatt, ist: Oberrothorn,bis2820m (idem1919).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Non-trivial Surface-band Dispersion on Bi(111)
Creators: name: Ohtsubo, Yoshiyuki
name: Perfetti, Luca
name: Goerbig, Mark Oliver
name: Fèvre, Patrick Le
name: Bertran, François
name: Taleb-Ibrahimi, Amina
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We performed angle-resolved photoelectron spectroscopy of the Bi(111) surface to demonstrate that this surface support edge states of non-trivial topology. Along the $\barΓ\bar{M}$-direction of the surface Brillouin zone, a surface-state band disperses from the projected bulk valence bands at $\barΓ$ to the conduction bands at $\bar{M}$ continuously, indicating the non-trivial topological order of three-dimensional Bi bands. We ascribe this finding to the absence of band inversion at the $L$ point of the bulk Bi Brillouin zone. According to our analysis, a modification of tight-binding parameters can account for the non-trivial band structure of Bi without any other significant change on other physical properties.
description: 13 pages, 4 figures. This manuscript has been accepted in New Journal of Physics
Be[e] the Creative Food of Social Innovation
Creators: name: Fagnoni, Raffaella
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: social innovation
subject: food culture
subject: urban farming
subject: reuse
subject: creative food cycles
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: Three-fourths of the world’s flowering plants and about 35% of food crops depend on pollinators to reproduce: more than 3,500 species of native bees help humanity to increase farming yields. However, due to climate change and pesticides, possible extinction scenarios for these insects have been reported. How can design address this problem? What can design do for bees? A bachelor final research project (“There is no plan bee”)1 focuses on the city’s abandoned spaces and the actions of creative citizens. On the one hand, the possibility to reuse abandoned places practising sustainable solutions. On the other hand, the chance for citizens and cities to activate bottom-up design practices and social innovation, facilitating a kind of circular city. Civic participation extends to the making of new urban communities, through simple self-produced installations, aiming to cultivate new visions and to influence creative food cycles. The paper aims to new models of knowledge production, addressing social, environmental and economic issues linked with food culture. It also deals with designing for common goods as a need for our next future.
Lithologic Mapping of HED Terrains on Vesta using Dawn Framing Camera Color Data
Creators: name: Thangjam, Guneshwar
name: Reddy, Vishnu
name: Corre, Lucille Le
name: Nathues, Andreas
name: Sierks, Holger
name: Hiesinger, Harald
name: Li, Jian-Yang
name: Sanchez, Juan A.
name: Russell, Christopher T.
name: Gaskell, Robert
name: Raymond, Carol
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The surface composition of Vesta, the most massive intact basaltic object in the asteroid belt, is interesting because it provides us with an insight into magmatic differentiation of planetesimals that eventually coalesced to form the terrestrial planets. The distribution of lithologic and compositional units on the surface of Vesta provides important constraints on its petrologic evolution, impact history and its relationship with Vestoids and howardite-eucrite-diogenite (HED) meteorites. Using color parameters (band tilt and band curvature) originally developed for analyzing lunar data, we have identified and mapped HED terrains on Vesta in Dawn Framing Camera (FC) color data. The average color spectrum of Vesta is identical to that of howardite regions, suggesting an extensive mixing of surface regolith due to impact gardening over the course of solar system history. Our results confirm the hemispherical dichotomy (east-west and north-south) in albedo/color/composition that has been observed by earlier studies. The presence of diogenite-rich material in the southern hemisphere suggests that it was excavated during the formation of the Rheasilvia and Veneneia basins. Our lithologic mapping of HED regions provides direct evidence for magmatic evolution of Vesta with diogenite units in Rheasilvia forming the lower crust of a differentiated object.
description: Accepted for Meteoritics and Planetary Science special issue for Composition of Vesta/Dawn Mission
Vous avez dit « CURATION » ? SOS DOCUMENTALISTES vous répond !
Creators: name: Tisserand, Hélène
name: Prost, Rachel
Publisher: name: Zenodo
Year: 2022
Subjects: curation
repository
metadata
entrepôt de données
métadonnées
science ouverte
open science
data librarian
documentaliste
taxons

description: Cette intervention a pour objectif de faire un retour d'expérience sur notre travail de documentalistes au sein de l'atelier de la donnée UBFC, et plus particulièrement notre rôle dans la curation des métadonnées mises à disposition sur le portail dat@UBFC. Nous aborderons les sujets suivants :
 - point sur le métier de documentaliste dans le contexte de la science ouverte et de l'Open Data
 - cadre dans lequel nous sommes amenées à gérer des MD (présentation du portail et de la curation)
 - exemples concrets de l'importance du travail de curation
 - valeur ajoutée du travail de curation et limites de la curation manuelle Cette présentation a été réalisée lors du webinaire du jeudi 1 décembre 2022, organisé par le GTSO Données de Couperin. L’enregistrement est disponible ici : https://youtu.be/LvqYI7gLs4w
title: COSMO Technical Report No. 39: Studying Perturbations for the Representation of modeling uncertainties in Ensemble Development (SPRED Final Report)
Creators: name: Marsigli, C.
name: Alferov, D.
name: Astakhova, E.
name: Duniec, G.
name: Gayfulin, D.
name: Gebhardt, C.
name: Interewicz, W.
name: Loglisci, N.
name: Marcucci, F.
name: Mazur, A.
name: Montani, A.
name: Tsyrulnikov, M.
name: Walser, A.
Publisher: name: COSMO Consortium for Small-Scale Modelling
Year: 2019

description: The Technical Reports are intended mainly for internal use within the COSMO group (COSMO = Consortium for Small Scale Modeling), but also to inform other groups on model changes and research activities. The purpose of the Technical Reports is 1. to document scientific research activities, 2. to document technical changes to the model system, 3. to give an overview on new components of the model system.
title: NUCLEATION OF ISLANDS WITH VERTICAL OR TRUNCATED CORNER FACETS IN VAPOR-LIQUID-SOLID NANOWIRES
Creators: name: Dubrovskii, V.G.
name: Sokolova,  Zh.V.
name: Rylkova, M.V.
name: Zhiglinsky , A.A.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2019

description: We develop a model for nucleation of islands in vapor-liquid-solid nanowires with either vertical or truncated corner facets. Under the assumption of two-dimensional geometry of the growing island, it is shown that the earlier energetic condition for the truncated edge at the growth interface is modified by chemical potential. Therefore, the islands may nucleate at the trijunction during growth even if the truncation is preferred at the no growth conditions on surface energetic grounds. This conclusion may be used as the first step for understanding the peculiar oscillatory behavior of the growth interface and the related crystal phases of III-V nanowires.
title: Antioxidant Capacity and Polyphenol Content of Brown Seaweeds after Heat Processing
Creators: name: Rajauria, Gaurav
name: Gupta, Shilpi
name: Aba-Ghannam, Nissreen
name: Jaiswal, Amit
Publisher: name: Technological University of Dublin
Year: 2010

description: Seaweeds or marine macroalgae are renewable living resources which are also used as food, feed and fertilizer in many parts of the world. They are able to produce a great variety of secondary metabolites characterized by a broad spectrum of biological behavior such as antibacterial and antioxidant activities. The effect of heat treatment was investigated on the level of bioactive compounds and changes in the overall antioxidant capacity of edible Irish brown seaweeds namely Himanthalia elongata, Laminaria saccharina and Laminaria digitata. In order to make the seaweeds safe and edible, they were heated at 85, 95, 100, 110 and 121°C for 15 min using an autoclave and the samples were extracted with 60% methanol. The total phenolic content (TPC), proanthocyanidin content (PC) and total radical scavenging capacity (RSC) against DPPH• increased as the heating temperature increased to 95°C. Heating at 95°C significantly increased (p L. saccharina > L. digitata. The overall changes by processing could be attributed to the complete breakdown or modifications of cellular components by heat and pressure. These compounds usually present in bound states as conjugate with sugars, fatty acids or proteins. It could be anticipated that heating around 100°C could be responsible for the disassociation of conjugate phenolic forms in seaweeds as their outer cell wall is much harder and heating at 100°C or above results in their deterioration. Results showed that the heat processing not only enhanced the contents of biologically active compounds in seaweeds but also the biological activity associated with these compounds as compared to the unprocessed seaweeds.