cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Towards the Identification and Classification of Solar Granulation Structures Using Semantic Segmentation
Creators: name: Díaz Castillo, S. M.
name: Asensio Ramos, A.
name: Fischer, C. E.
name: Berdyugina, S. V.
Publisher: name: Lausanne : Frontiers Media
Year: 2022
Subjects: subject: deep learning–artificial neural network
subject: dense segmentation
subject: photosphere–convection
subject: solar granulation
subject: solar physics
subject: 520
subject: 620

description: Solar granulation is the visible signature of convective cells at the solar surface. The granulation cellular pattern observed in the continuum intensity images is characterised by diverse structures e.g., bright individual granules of hot rising gas or dark intergranular lanes. Recently, the access to new instrumentation capabilities has given us the possibility to obtain high-resolution images, which have revealed the overwhelming complexity of granulation (e.g., exploding granules and granular lanes). In that sense, any research focused on understanding solar small-scale phenomena on the solar surface is sustained on the effective identification and localization of the different resolved structures. In this work, we present the initial results of a proposed classification model of solar granulation structures based on neural semantic segmentation. We inspect the ability of the U-net architecture, a convolutional neural network initially proposed for biomedical image segmentation, to be applied to the dense segmentation of solar granulation. We use continuum intensity maps of the IMaX instrument onboard the Sunrise I balloon-borne solar observatory and their corresponding segmented maps as a training set. The training data have been labeled using the multiple-level technique (MLT) and also by hand. We performed several tests of the performance and precision of this approach in order to evaluate the versatility of the U-net architecture. We found an appealing potential of the U-net architecture to identify cellular patterns in solar granulation images reaching an average accuracy above 80% in the initial training experiments.
Syrphus fasciventris Rondani 1851
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Syrphus
Syrphus fasciventris

description: Syrphus fasciventris Rondani, 1851
ORIGINAL DESCRIPTION: 1851: 360.
TYPE LOCALITY: “ regioni equatoriali dell’America, principalmente nelle vicinanze del Rio Napo ” [Equatorial regions of (South) America, mainly in the vicinity of Napo River] (Rondani 1851: 357).
TYPE MATERIAL: not found in this study.
CURRENT STATUS: valid species (Thompson et al. 1976: 39).
REMARKS: Rondani (1851: 360) described Syrphus fasciventris from just the female sex, without specifying the exact number of specimens, but giving a single measurement of length, from material collected by Osculati (1850) during his journey through equatorial South America. Osculati (1850: 240) named but did not describe the species. Leonardi et al. (1995: 148) and Mazzotti (2011: 166) reported the Osculati collection in Milan as destroyed. We also did not find any material during this study.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 271, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
Towards efficient production of highly optically pure d-lactic acid from lignocellulosic hydrolysates using newly isolated lactic acid bacteria
Creators: name: Alexandri, Maria
name: Hübner, Dennis
name: Schneider, Roland
name: Fröhling, Antje
name: Venus, Joachim
Publisher: name: New York, NY [u.a.] : Elsevier
Year: 2022
Subjects: subject: Co-cultivation
subject: d-lactic acid
subject: Leuconostoc sp.
subject: Lignocellulosics
subject: Nanofiltration
subject: Optical purity
subject: 570
subject: 540

description: This study presents the production of D-lactic acid with high enantiomeric purity using lignocellulosic hydrolysates from newly isolated lactic acid bacterial (LAB) strains. Six strains, 4 heterofermentative and 2 homofermentative, were investigated for their ability to grow and produce lactic acid on sugar beet pulp (SBP) hydrolysates, containing a mixture of hexose and pentose sugars. Among the strains tested, three were isolates designated as A250, A257 and A15, all of which belonged to the genus Leuconostoc. Only strain A250 could be reliably identified as Leuconostoc pseudomesenteroides based on cluster analysis of Maldi-ToF spectra. All strains produced D-lactic acid in the presence of SBP hydrolysates, but with varying optical purities. The homofermentative strains achieved higher D-lactic acid optical purities, but without assimilating the pentose sugars. Co-cultivation of the homofermentative strain Lactobacillus coryniformis subsp. torquens DSM 20005 together with the heterofermentative isolate A250 led to the production of 21.7 g/L D-lactic acid with 99.3 % optical purity. This strategy enabled the complete sugar utilization of the substrate. Nanofiltration of the SBP hydrolysate enhanced the enantiomeric purity of the D-lactic acid produced from the isolates A250 and A15 by about 5 %. The highest D-lactic acid concentration (40 g/L) was achieved in fed-batch cultures of A250 isolate with nanofiltered SBP, where optical purity was 99.4 %. The results of this study underline the feasibility of a novel isolate as an efficient D-lactic acid producer using lignocellulosic hydrolysates.
title: Universitätsbibliothek Marburg Ms. 18: Johannes de Rupescissa - Johannes Jacobi
Creators: name: Johannes Von Roquetaillade, OFM
name: Bacon, Roger
name: Jacobi, Johannes
Publisher: name: Philipps-Universität Marburg
Year: 1479
Subjects: Manuscripts and rare books
Handschriften, seltene Bücher

description: Elektronische Reproduktion der Handschrift: [Handschrift] Universitätsbibliothek Marburg Ms. 18: Johannes de Rupescissa - Johannes Jacobi - Erschienen: [deutschsprachiger Raum], 1479. - Standort: Universität Marburg, Universitätsbibliothek. - Signatur: Ms. 18. - Ausführliche Beschreibung: HEYNE, Sirka: Die mittelalterlichen Handschriften der Universitätsbibliothek Marburg. Wiesbaden: Harrassowitz, 2002. S. 45-46. - Digitalisiert 2020
description: 1r: NOTAE, u.a. computistische Bemerkungen: Si planetam hominis alicuius … 5 1 1v: INHALTSVERZEICHNIS von Christoph Clauser; Signatur N. 37. 8 2r-30r: JOHANNES DE RUPESCISSA: [DE CONSIDERATIONE QUINTAE ESSENTIAE]. 9 2 30v-39v: Ps.-ROGERUS BACON: [DE AQUA VITAE] 66 30 39v-40r: RECEPTUM DE AQUA VITAE. 84 39 40v-49v: leer 86 50r-53r: [DE SEPTEM FIGURIS PLANETARUM]. 105 50 53v: leer 112 53 54r-58r: JOHANNES JACOBI: DE PESTILENTIA. 113 54 58v-61v: [Zahlen 1-1000000]. 122 58 61v: NOTAE. 128
Oriented Attachment of ZnO Nanocrystals
Creators: name: Hapiuk, Dimitri
name: Masenelli, Bruno
name: Masenelli-Varlot, Karine
name: Tainoff, Dimitri
name: Boisron, Olivier
name: Albin, Clement
name: Melinon, Patrice
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Self-organization of nanoparticles is a major issue to synthesize mesoscopic structures. Among the possible mechanisms leading to self-organization, the oriented attachment is efficient yet not completely understood. We investigate here the oriented attachment process of ZnO nanocrystals preformed in the gas phase. During the deposition in high vacuum, about 60% of the particles, which are uncapped, form larger crystals through oriented attachment. In the present conditions of deposition, no selective direction for the oriented attachment is noticed. To probe the driving force of the oriented attachment, and more specifically the possible influence of the dipolar interaction between particles, we have deposited the same nanocrystals in the presence of a constant electric field. The expected effect was to enhance the fraction of domains resulting from the oriented attachment due to the increased interaction of the particle dipoles with the electric field. The multiscale analytical and statistical analysis (TEM coupled to XRD) shows no significant influence of the electric field on the organization of the particles. We therefore conclude that the dipolar interaction between nanocrystals is not the prominent driving force in the process. Consequently, we argue, in accordance with recent theoretical and experimental investigations, that the surface reduction, possibly driven by Coulombic interaction, may be the major mechanism for the oriented attachment process.
Provably Quantum-Secure Message Authentication Code
Creators: name: Nguyen, Jérôme
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2022

description: Die Gefahr von Quantencomputer gegen asymmetrische Kryptographie ist schon lange bekannt. Jedoch wurden die Auswirkungen auf die symmetrische Kryptographie als weniger einschlägig betrachtet. In den letzten Jahren sind mehrere effiziente Quantenangriffee gegen Nachrichtenauthentifizierungscode (message authentication code, MAC) entdeckt worden. Aus diesem Grund wurde beweisbare Sicherheit dieser Primitive im Quantenmodell erforscht. Einige existierende Algorithmen wurden als quantensicher bewiesen. Darüber hinaus wurden neuen Protokolle entworfen welche auch Quantenangriffen widerstehen können. In dieser Masterarbeit untersuchen wir den Einsatz von Noncen in der Konstruktion von quantensicheren Protokollen. In diesem Sinne hat eine vorherige Arbeit eine allgemeine Transformation für MACs eingeführt. Wir zeigen, dass diese Transformation im Allgemeinen nicht quantensicher ist. Dennoch behaupten wir, dass die Transformation in vielen spezifischen Fällen wirksam ist. Wir behandeln denn Fall von der CBC-MAC und zeigen das die transformierte Version quantensicher ist. Zudem formalisieren wir einige Entwurfstrategien für quantensichere Protokolle.
title: Die Kaiserin Mutter; [1848]
title: Auszug aus dem "Unpartheiischen" aus Nr. 26
titleType: Subtitle
Creators: name: Löbenstein, Mathias Emanuel
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Aus: Der Unpartheyische, Nr. 26, [1848]
Dynamics of interval fragmentation and asymptotic distributions
Creators: name: Fortin, Jean-Yves
name: Mantelli, Sophie
name: Choi, Moo Young
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82C05

description: We study the general fragmentation process starting from one element of size unity (E=1). At each elementary step, each existing element of size $E$ can be fragmented into $k\,(\ge 2)$ elements with probability $p_k$. From the continuous time evolution equation, the size distribution function $P(E;t)$ can be derived exactly in terms of the variable $z= -\log E$, with or without a source term that produces with rate $r$ additional elements of unit size. Different cases are probed, in particular when the probability of breaking an element into $k$ elements follows a power law: $p_k\propto k^{-1-η}$. The asymptotic behavior of $P(E;t)$ for small $E$ (or large $z$) is determined according to the value of $η$. When $η>1$, the distribution is asymptotically proportional to $t^{1/4}\exp[\sqrt{-αt\log E}][-\log E]^{-3/4}$ with $α$ being a positive constant, whereas for $η<1$ it is proportional to $E^{η-1}t^{1/4}\exp[\sqrt{-αt\log E}][-\log E]^{-3/4}$ with additional time-dependent corrections that are evaluated accurately with the saddle-point method.
description: 13 pages, 3 figures
Interaction and temperature effects on the pair correlation function of a strongly interacting 1D quantum dot
Creators: name: Ziani, N. Traverso
name: Cavaliere, F.
name: Mariani, E.
name: Sassetti, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The pair correlation function of a strongly interacting one-dimensional quantum dot is evaluated analytically within the framework of the spin coherent Luttinger liquid model. The influence of electron interactions and temperature on the competition between finite-size effects and electronic correlations is analyzed, also in the regime of large numbers of particles. The development of Wigner molecule correlations is observed as interactions get stronger. The visibility of such signatures is enhanced for temperatures comparable with the spin excitation energy of the system due to a suppression of the uncorrelated Friedel contribution to the pair correlation function.
On Bogomolny-Schmit conjecture
Creators: name: Beliaev, D
name: Kereta, Z
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Bogomolny and Schmit proposed that the critical edge percolation on the square lattice is a good model for the nodal domains of a random plane wave. Based on this they made a conjecture about the number of nodal domains. Recent computer experiments showed that the mean number of clusters per vertex and the mean number of nodal domains per unit area are very close but different. Since the original argument was mostly supported by numerics, it was believed that the percolation model is wrong. In this paper we give some numerical evidence in favour of the percolation model.
description: 6 pages, 2 figures. To be published in Journal of Physics A: Mathematical and Theoretical
title: Universitätsbibliothek Marburg Ms. 10: Gerardus Bituricensis
Creators: name: Solo, Gerardus De
name: Clauser, Christoph
Publisher: name: Philipps-Universität Marburg
Year: 1300
Subjects: Manuscripts and rare books
Handschriften, seltene Bücher

description: Elektronische Reproduktion der Handschrift: [Handschrift] Universitätsbibliothek Marburg Ms. 10: Gerardus Bituricensis. - Erschienen: [Norditalien, Bologna], [14. Jahrhundert, erstes Drittel]. - Standort: Universität Marburg, Universitätsbibliothek. - Signatur: Ms. 10. - Ausführliche Beschreibung: HEYNE, Sirka: Die mittelalterlichen Handschriften der Universitätsbibliothek Marburg. Wiesbaden: Harrassowitz, 2002. S. 21-22. - Digitalisiert 2020
Relative entropy, interaction energy and the nature of dissipation
Creators: name: Gaveau, B.
name: Granger, L.
name: Moreau, M.
name: Schulman, L. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Many thermodynamic relations involve inequalities, with equality if a process does not involve dissipation. In this article we provide equalities in which the dissipative contribution is shown to involve the relative entropy (a.k.a. Kullback-Leibler divergence). The processes considered are general time evolutions both in classical and quantum mechanics, and the initial state is sometimes thermal, sometimes partially so. By calculating a transport coefficient we show that indeed---at least in this case---the source of dissipation in that coefficient is the relative entropy.
Legea privind inteligența artificială: propunere legislativă la nivel european
Creators: name: Trașcu, Răzvan Ioan
Publisher: name: Zenodo
Year: 2022
Subjects: MDR

description: Pe portalul EUR-Lex este disponibilă o propunere legislativă care propune norme armonizate privind inteligența artificială (legea privind inteligența artificială) și modificarea anumitor acte legislative ale Uniunii Europene. Inteligența artificială (IA) este o familie de tehnologii cu evoluție rapidă, care poate genera o gamă largă de beneficii în special în domeniul medical, prin îmbunătățirea previziunilor, optimizarea și automatizarea unor operațiuni, îmbunătățirea alocării de resurse, personalizarea furnizării de servicii. În egală măsură însă aceleași elemente care permit aceste beneficii ridică o serie de probleme din punct de vedere al riscurilor și/sau eventualelor consecințe negative, la nivel de persoană și/sau societate.
Power-Free Values of Polynomials
Creators: name: Reuss, Thomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Let f be an irreducible polynomial of degree d>=3 with no fixed prime divisor. We derive an asymptotic formula for the number of primes p
description: 19 pages
Many Voices, Still Many Worlds
Creators: name: KM SEETHI
Publisher: name: figshare
Year: 2020
Subjects: subject: 220208 History and Philosophy of the Social Sciences
subject: FOS: Philosophy, ethics and religion

description: The article discusses the continuing relevance of UNESCO amidst controversies and debates on the role of the organization in a politically and culturally complex world. It places the writing of M.Govindan in the right perspective
Numerical simulation of graphene in external magnetic field
Creators: name: Boyda, D. L.
name: Braguta, V. V.
name: Valgushev, S. N.
name: Polikarpov, M. I.
name: Ulybyshev, M. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper the results of numerical simulation of monolayer graphene in external magnetic field are presented. The numerical simulation is performed in the effective lattice field theory with noncompact $3 + 1$-dimensional Abelian lattice gauge fields and $2 + 1$-dimensional staggered lattice fermions. The dependences of fermion condensate and graphene conductivity on the dielectric permittivity of substrate for different values of external magnetic field are calculated. It is found that magnetic field shifts insulator-semimetal phase transition to larger values of the dielectric permittivity of substrate. The phase diagram of graphene in external magnetic field is drawn.
description: 6 pages, 5 figures. arXiv admin note: substantial text overlap with arXiv:1204.0921
Volucella alchimista Rondani 1848
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Bombyliidae
Volucella
Volucella alchimista

description: Volucella alchimista Rondani, 1848
ORIGINAL DESCRIPTION: 1848b: 64.
TYPE LOCALITY: “ Brasile [Brazil]” (Rondani 1848b: 63); [Belem (Pará), Brazil] (Papavero 1973: 343). See Remarks.
TYPE MATERIAL: 1 ♂, syntype (covered with mold) (MZUN: Box Coll. entomol. extra, Fam. Sirfidei - Gen. Aphritis a Phalacromya): Volucella alchimista Rnd., Brasile / M. Zool. N° 11207 / ♂.
CURRENT STATUS: valid species, as Copestylum alchimista (Thompson et al. 1976: 71).
REMARKS: Rondani (1848b: 64) described Volucella alchimista from just the male sex, without specifying either the number or the length of the specimens, from material collected in South America by V. Ghiliani. Costa (1866: 31) listed a single MZUN specimen numbered “606”. We also found one syntype in this study. Although Rondani (1848b: 63) only gave the type locality as “ Brasile ”, Papavero (1973: 343) gave a more accurate type locality based on a note in Spinola (1853) that said all specimens collected by Ghiliani in 1846 were collected in Belem, Pará, Brazil.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 273, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
Temperature-induced emergence of Wigner correlations in a STM-probed one-dimensional quantum dot
Creators: name: Ziani, N. Traverso
name: Cavaliere, F.
name: Sassetti, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The temperature-induced emergence of Wigner correlations over finite-size effects in a strongly interacting one-dimensional quantum dot are studied in the framework of the spin coherent Luttinger liquid. We demonstrate that, for temperatures comparable with the zero mode spin excitations, Friedel oscillations are suppressed by the thermal fluctuations of higher spin modes. On the other hand, the Wigner oscillations, sensitive to the charge mode only, are stable and become more visible. This behavior is proved to be robust both in the thermal electron density and in the linear conductance in the presence of an STM tip. This latter probe is not directly proportional to the electron density and may confirm the above phenomena with complementary and additional information.
Potts Models with Invisible States on General Bethe Lattices
Creators: name: Ananikian, N.
name: Izmailyan, N. Sh.
name: Johnston, D. A.
name: Kenna, R.
name: Ranasinghe, R. P. K. C. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The number of so-called invisible states which need to be added to the q-state Potts model to transmute its phase transition from continuous to first order has attracted recent attention. In the q=2 case, a Bragg-Williams, mean-field approach necessitates four such invisible states while a 3-regular, random-graph formalism requires seventeen. In both of these cases, the changeover from second- to first-order behaviour induced by the invisible states is identified through the tricritical point of an equivalent Blume-Emery-Griffiths model. Here we investigate the generalised Potts model on a Bethe lattice with z neighbours. We show that, in the q=2 case, r_c(z)=[4 z / 3(z-1)] [(z-1)/(z-2)]^z invisible states are required to manifest the equivalent Blume-Emery-Griffiths tricriticality. When z=3, the 3-regular, random-graph result is recovered, while the infinite z limit delivers the Bragg-Williams, mean-field result.
Energy dependence of potential barriers and its effect on fusion cross-sections
Creators: name: Umar, A. S.
name: Simenel, C.
name: Oberacker, V. E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Couplings between relative motion and internal structures are known to affect fusion barriers by dynamically modifying the densities of the colliding nuclei. The effect is expected to be stronger at energies near the barrier top, where changes in density have longer time to develop than at higher energies. Quantitatively, modern TDHF calculations are able to predict realistic fusion thresholds. However, the evolution of the potential barrier with bombarding energy remains to be confronted with the experimental data. The aim is to find signatures of the energy dependence of the barrier by comparing fusion cross-sections calculated from potentials obtained at different bombarding energies with the experimental data. This comparison is made for the $^{40}$Ca+$^{40}$Ca and $^{16}$O+$^{208}$Pb systems. Fusion cross-sections are computed from potentials calculated with the density-constrained TDHF method. The couplings decrease the barrier at low-energy in both cases. A deviation from the Woods-Saxon nuclear potential is also observed at the lowest energies. In general, fusion cross-sections around a given energy are better reproduced by the potential calculated at this energy. The coordinate-dependent mass plays a crucial role for the reproduction of sub-barrier fusion cross-sections. Effects of the energy dependence of the potential can be found in experimental barrier distributions only if the variation of the barrier is significant in the energy-range spanned by the distribution. It appears to be the case for $^{16}$O+$^{208}$Pb but not for $^{40}$Ca+$^{40}$Ca. These results show that the energy dependence of the barrier predicted in TDHF calculations is realistic. This confirms that the TDHF approach can be used to study the couplings between relative motion and internal degrees of freedom in heavy-ion collisions.
description: 11 pages, 10 figures
Higher Retail Meat Prices Reduced Household Economic Well-Being During the COVID-19 Pandemic
Creators: name: Dong, Xiao
name: Dong, Xiao
Publisher: name: Unknown
Year: 2022
Subjects: Agricultural and Food Policy
Consumer/Household Economics
Demand and Price Analysis
Financial Economics
Food Consumption/Nutrition/Food Safety
Food Security and Poverty
Health Economics and Policy
Institutional and Behavioral Economics
Public Economics

description: Retail meat prices rose almost 7 percent in 2020 as the Coronavirus (COVID-19) pandemic changed the economic landscape in the United States. Meatpacking plants were forced to close temporarily during spring and summer of 2020 when workers tested positive for COVID-19, while other plants had to reduce capacity. This disruption led to a drop in U.S. meat production and increased meat prices for U.S households. At the same time, restaurant restrictions put in place during the pandemic shifted consumer purchasing patterns toward more food at home, leading to an increase in the amount of meat households bought from grocery stores. Using scanner data purchased from Information Resources, Inc. (IRI), researchers from USDA, Economic Research Service (ERS) compared retail meat prices, expenditures, and the amount purchased in 2020 with those in 2019. Furthermore, the researchers estimated how much households lost in economic well-being (also referred to as welfare in the field of economics) in 2020, compared with 2019, because of the higher meat prices.
description: NA
Carbon nanotube sensor for vibrating molecules
Creators: name: Remaggi, F.
name: Ziani, N. Traverso
name: Dolcetto, G.
name: Cavaliere, F.
name: Sassetti, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The transport properties of a CNT capacitively coupled to a molecule vibrating along one of its librational modes are studied and its transport properties analyzed in the presence of an STM tip. We evaluate the linear charge and thermal conductances of the system and its thermopower. They are dominated by position-dependent Franck-Condon factors, governed by a position-dependent effective coupling constant peaked at the molecule position. Both conductance and thermopower allow to extract some information on the position of the molecule along the CNT. Crucially, however, thermopower sheds also light on the vibrational levelspacing, allowing to obtain a more complete characterization of the molecule even in the linear regime.
title: Transient Simulation of Geothermal Combined Heat and Power Generation for a Resilient Energetic and Economic Evaluation
Creators: name: Eller, Tim
name: Heberle, Florian
name: Brüggemann, Dieter
Publisher: name: University of Bayreuth
Year: 2019
Subjects: subject: 620

description: Geothermal power plants based on the organic Rankine cycle (ORC) are used to convert the thermal power of brine into electricity. The efficiency and profitability of these power plants can be increased by an additional heat supply. The purpose of this study is to evaluate different combined heat and power (CHP) concepts for geothermal applications by thermodynamic and economic considerations. Therefore, a dynamic simulation model of a double-stage ORC is developed to perform annual return simulations. The transient ORC model is validated in a wide range by operational data of an existing power plant in the German Molasse Basin. A district heating system is considered and the corresponding heat load profiles are derived from a real geothermal driven heating network. For CHP, parallel and combined configurations are considered. The validation of the transient model is satisfying with a correlation coefficient of 0.99 between the simulation and real power plant data. The results show that additional heat extraction leads to a higher exergetic efficiency and a higher profitability. The exergetic efficiency and the profitability are increased by up to 7.9% and 16.1%, respectively. The combined concept shows a slightly better performance than the parallel configuration. The efficiency can be increased by up to 1.3%. In economic terms, for CHP the annual return can be increased by at least 2,500,000 €;. In principle, the dynamic model shows reliable results for high power gradients. This enables an investigation of geothermal ORC models for the reserve market in future works.
Unconventional sign-changing superconductivity near quantum criticality in YFe$_2$Ge$_2$
Creators: name: Subedi, Alaska
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: I present the results of first principles calculations of the electronic structure and magnetic interactions for the recently discovered superconductor YFe$_2$Ge$_2$ and use them to identify the nature of superconductivity and quantum criticality in this compound. I find that the Fe $3d$ derived states near the Fermi level show a rich structure with the presence of both linearly dispersive and heavy bands. The Fermi surface exhibits nesting between hole and electron sheets that manifests as a peak in the susceptibility at $(1/2,1/2)$. I propose that the superconductivity in this compound is mediated by antiferromagnetic spin fluctuations associated with this peak resulting in a $s_\pm$ state similar to the previously discovered iron-based superconductors. I also find that various magnetic orderings are almost degenerate in energy, which indicates that the proximity to quantum criticality is due to competing magnetic interactions.
Strangeness on the nucleon
Creators: name: González-Jiménez, R.
name: Caballero, J. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Observables from parity violation in elastic electron-nucleon scattering and neutral current quasi-elastic neutrino-nucleus scattering are employed as tools to improve the current knowledge on the strangeness content in the nucleon.
description: Proceedings of International Scientific Meeting on Nuclear Physics, 9-13th September 2012. La R\'abida, Huelva, Spain
Volucella alpicola Rondani 1857
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Bombyliidae
Volucella
Volucella alpicola

description: Volucella alpicola Rondani, 1857
ORIGINAL DESCRIPTION: 1857: 29 (key), 32 (description).
TYPE LOCALITY: “ in Alpibus Insubriae [Insubrian (= Lombardy, Italy) Alps]”.
TYPE MATERIAL: 2 ♀♀, syntypes (MZUF: Box 1): Volucella Gffr. / alpicola Rnd., Alpi / 22; 1 ♂, syntype (missing both hind-legs) (MSNC: Box DIPTERA Ex collezione Rondani - I): Volucella R. alpicola Rnd. Alpi / Coll. Rondani, scatola n° 3, posiz. B-1 / Museo di Storia Naturale Università di Pisa, Calci (PI) ex collezione Rondani.
CURRENT STATUS: junior synonym of Volucella bombylans (Linnaeus, 1758) (Peck 1988: 128).
REMARKS: Rondani (1857: 32) described both sexes of Volucella alpicola without specifying either the number or the length of the specimens: “ masculum ab Equite Truqui … accepi, foeminam fratres Villa … miserunt [I received the male from Mr. Truqui, the Villa brothers … sent the female]”. We found three syntypes in this study.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 274, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
Xylota coerulea Rondani 1863
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Xylota
Xylota coerulea

description: Xylota coerulea Rondani, 1863
ORIGINAL DESCRIPTION: 1863: 8.
TYPE LOCALITY: “ Chiliae [Chile]”.
TYPE MATERIAL: 1 ♂, syntype (very moldy) (MZUN: Box Coll. entomol. extra-europea, Fam. Sirfidei - Gen. Xylota a Conops): Xylota coerulea Rnd., Chili [= Chile] / M. Zool. N° 11257.
CURRENT STATUS: valid species, as Sterphus coeruleus (Thompson et al. 1976: 116).
REMARKS: Rondani (1863: 8) described Xylota coerulea from just the male sex, without specifying the exact number of the specimens, but giving a single measurement of length, from material received from R.A. Philippi. Costa (1866: 32) listed a single MZUN specimen numbered “637”. We also found one syntype in this study.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 276, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
title: Heimaths-Gesetz; [1848]
title: Entwurf
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Vorlageform der Veröffentlichungsangabe: Druck von C. Krebs-Schmitt in Frankfurt a. M.
On the spectral origin of non-Markovianity: an exact finite model
Creators: name: Vasile, Ruggero
name: Galve, Fernando
name: Zambrini, Roberta
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Non-homogeneous chain environments (e.g. segmented ion traps) are investigated through an exact diagonalization approach. Different spectral densities, including band-gaps, can be engineered to separately assess memory effects. Environment non-Markovianity is quantified with recently introduced measures of information flow-back and non-divisibility of the system dynamical map. By sweeping the bath spectrum via tuning of the system frequency we show strongest memory effect at band-gap edges and provide an interpretation based on energy flow between system and environment. A system weakly coupled to a stiff chain ensures a Markovian dynamics, while the size of the environment as well as the local density of modes are not substantial factors. We show an opposite effect when increasing the temperature inside or outside the spectral band-gap. Further, non-Markovianity arises for larger (negative and positive) powers of algebraic spectral densities, being the Ohmic case not always the most Markovian one.
description: Main manuscript 5 pages, 5 figures. 2 pages and 4 figures for supplement material
Haematopota asiatica Rondani 1875
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tabanidae
Haematopota
Haematopota asiatica

description: Haematopota asiatica Rondani 1875
ORIGINAL DESCRIPTION: 1875c: 461.
TYPE LOCALITY: “ Insula Bonae Fortunae (Borneo), Provincia Sarawak [Bona Fortuna Island, Sarawak Province, Borneo]” (Rondani 1875c: 421).
TYPE MATERIAL: 1 ♀, syntype (MSNG): Haematopota asiatica Wied., n. 75 / Borneo, Sarawak, 1865–66, Coll. Doria.
CURRENT STATUS: junior synonym of Haematopota javana Wiedemann, 1821 (Stone 1975: 76).
REMARKS: Rondani (1875c: 461) described Haematopota asiatica from just the female sex, without specifying either the number or the length of the specimens, from material collected by G. Doria and O. Beccari. Rondani attributed the species name to Wiedemann. Guiglia (1957) and Raineri & Rey (1996) did not mention this nominal species. We found one syntype in this study.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 282, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
title: Metallic raw material demand for hydrogen technology in the German steel production 2030
Creators: name: Steiger , Katharina
name: Kolb , Jochen
name: Hilgers , Christoph
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2021

description: To reach Germany’s climate neutrality goal in 2045, different technological and systematical changes have to be conducted, such as the expansion of renewable energies plants, the shift towards e-mobility and the necessary infrastructure. For the measures, metallic raw materials will be increasingly required. The German government plans to support those industry sectors, which are emitting great amounts of CO2. The data evaluation on emissions and energy consumption in Germany shows that the sector "production and first processing of iron and steel" is the second largest emitter of CO2 in Germany, with around 40 million tons of CO2 per year. On the one hand, steel is essential for the construction of renewable energy plants and, on the other hand, its production accounts for appr. 5 % of total German CO2 emissions. Consequently, steel production is part of the solution and the challenge of the climate neutrality goal. Various options to decrease industrial CO2 emissions in Germany are being discussed, as e.g. the use of hydrogen. To produce green hydrogen, various metallic raw materials are required for the production of green energy plants and electrolyzers. The amount of the metallic raw materials is calculated specifically for the application of hydrogen in the German steel production in 2030.
A lingering non-thermal component in the GRB prompt emission: predicting GeV emission from the MeV spectrum
Creators: name: Basak, Rupal
name: Rao, A. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The high energy GeV emission of gamma-ray bursts (GRBs), detected by \emph{Fermi}/LAT, has a significantly different morphology compared to the lower energy MeV emission, detected by \emph{Fermi}/GBM. Though the late time GeV emission is believed to be synchrotron radiation produced via an external shock, this emission as early as the prompt phase is puzzling. Meaningful connection between these two emissions can be drawn only by an accurate description of the prompt MeV spectrum. We perform a time-resolved spectroscopy of the GBM data of long GRBs having significant GeV emission, using a model consisting of 2 blackbodies and a power-law. We examine in detail the evolution of the spectral components and found that GRBs having high GeV emission (GRB 090902B and GRB 090926A) have a delayed onset of the power-law component, in the GBM spectrum, which lingers at the later part of the prompt emission. This behaviour mimics the flux evolution in LAT. In contrast, bright GBM GRBs with an order of magnitude lower GeV emission (GRB 100724B and GRB 091003) show a coupled variability of the total and the power-law flux. Further, by analyzing the data for a set of 17 GRBs, we find a strong correlation between the power-law fluence in the MeV and the LAT fluence (Pearson correlation: r=0.88 and Spearman correlation: $ρ=0.81$). We demonstrate that this correlation is not influenced by the correlation between the total and the power-law fluences at a confidence level of 2.3$σ$. We speculate the possible radiation mechanisms responsible for the correlation.
description: 9 Pages, 2 Figures, ApJ Accepted
Silvius nubipennis Rondani 1851
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tabanidae
Silvius
Silvius nubipennis

description: Silvius nubipennis Rondani, 1851
ORIGINAL DESCRIPTION: 1851: 371.
TYPE LOCALITY: “ regioni equatoriali dell’America, principalmente nelle vicinanze del Rio Napo [Equatorial regions of (South) America, mainly in the vicinity of Napo River]” (Rondani 1851: 357).
TYPE MATERIAL: not found in this study.
CURRENT STATUS: valid species, unplaced to genus of Tabanidae (Fairchild 1971: 108, Coscarón & Papavero 2009: 148).
REMARKS: Rondani (1851: 371) described Silvius nubipennis, without specify either the number or the sex of the specimens, but giving a single measurement of length, from material collected by Osculati (1850) during his journey through equatorial South America. Osculati (1850: 240) named but did not describe the species. Fairchild (1971: 108), Leonardi et al. (1995: 148) and Mazzotti (2011: 166) reported the Osculati collection in Milan as destroyed. We also did not find any material during this study.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 283, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
Motility fractionation of bacteria by centrifugation
Creators: name: Maggi, Claudio
name: Lepore, Alessia
name: Solari, Jacopo
name: Rizzo, Alessandro
name: Di Leonardo, Roberto
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Centrifugation is a widespread laboratory technique used to separate mixtures into fractions characterized by a specific size, weight or density. We demonstrate that centrifugation can be also used to separate swimming cells having different motility. To do this we study self-propelled bacteria under the influence of an external centrifugal field. Using dynamic image correlation spectroscopy we measure the spatially resolved motility of bacteria after centrifugation. A significant gradient in swimming-speeds is observed for increasing centrifugal speeds. Our results can be reproduced by a model that treats bacteria as "hot" colloidal particles having a diffusion coefficient that depends on the swimming speed.
description: 7 pages, 5 figures (in press)
Tabanus apicalis Rondani 1875
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tabanidae
Tabanus
Tabanus apicalis

description: Tabanus apicalis Rondani, 1875
ORIGINAL DESCRIPTION: 1875c: 459.
TYPE LOCALITY: “ Insula Bonae Fortunae (Borneo), Provincia Sarawak [Bona Fortuna Island, Sarawak Province, Borneo]” (Rondani 1875c: 421).
TYPE MATERIAL: 1 ♀, holotype (MSNG): Sarawak / typus / apicalis Rond. / Tabanus apicalis n° 71.
CURRENT STATUS: junior primary homonym of Tabanus apicalis Macquart, 1847 and senior (but invalid) synonym of Tabanus borniensis Ricardo, 1911 (Stone 1975: 55).
REMARKS: Rondani (1875c: 459) described Tabanus apicalis from just the female sex, without specifying the exact number of specimens, but giving a single measurement of length, from material collected by G. Doria and O. Beccari. Ricardo (1911: 216) examined the type in the MSNG and replaced Tabanus apicalis Rondani, 1875, name already used by Wiedemann (1828: 142), with Tabanus borniensis. Guiglia (1957: 196) and Raineri & Rey (1996: 54) reported the holotype (♀) in the MSNG.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 284, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
The House of Infinite Bliss
Creators: name: Thapa, Rosie
Publisher: name: Lancaster University
Year: 2022

description: This PhD submission consists of a novel, The House of Infinite Bliss, and a commentary, Stranger in the House, that reflects on the writing of the novel. The novel is set in Kathmandu in the winter of 2010, in the aftermath of Nepal’s civil war and explores what happens when Gita, a young Maoist ex-combatant, goes to work as a maid in one of the city’s once-grand houses, Ananda Niwas. Through the point of view of Gita, four other servants, and the daughter of the house, the novel explores the different power relationships that exist between them as Gita confronts her war-time involvement in a terrible event. The commentary consists of four chapters. In Chapter One I consider the formal research that I undertook to discover the reasons that women and girls joined the Maoist cause in Nepal. In this chapter I reflect on the relationship between my formal research and the compositional process, also called ‘practice-based research’. I consider the constructive tension that exists between formal research and practice-based research and what this has taught me in terms of my own writing process. Chapter Two examines the significance of the ‘big house’ in Nepali culture and society in terms of its architectural presence and its cultural and political symbolism, and the opportunities this afforded me in the writing of the novel. Certain technical choices had to be made during the writing process in order to exploit narrative opportunities or solve narrative problems. In Chapter Three I chart the reasons for these choices, including how the shifting narrative focus and the narrative structure of the novel bring together an exploration of power structures through its characters, and how the novel’s interlocking of points of view and the exploration of consciousness through its characters construct the fluidities of time in the narrative. In Chapter Four I discuss the ethical implications of Nepali characters being given a voice by a non-Nepali, the implications of this novel being written in English, and my intended audience. I conclude the commentary by considering where the experience of writing the novel has taken me as a PhD candidate and a writer, and consider my PhD’s original contribution to knowledge.
title: Reasons and implications of fossil hydraulic gradients in large-scale aquifer systems
Creators: name: Schulz , Stephan
name: Jung , Hyekyeng
name: Walther , Marc
name: Michelsen , Nils
name: Rausch , Randolf
name: Schüth , Christoph
Publisher: name: Deutsche Geologische Gesellschaft - Geologische Vereinigung e.V. (DGGV)
Year: 2021

description: Due to limited availability of surface water, many arid and semi-arid countries have to rely on their groundwater resources. Despite the quasi-absence of present-day replenishment, some of these aquifers contain large amounts of water that was recharged during wetter periods in the past. Although these recharge events often occurred several thousand years ago, some of these so-called fossil aquifer systems exhibit considerable hydraulic gradients and flow towards their discharge areas, even without pumping. As a result, these systems have more discharge than recharge and are therefore not in steady state, which makes their modelling, in particular the calibration, very challenging. Probably the most relevant explanation for this phenomenon is the long groundwater residence time and the associated long-term head decay of the paleo-recharge mounds. In this study, we propose a possible approach to deal with this phenomenon during model calibration. Moreover, we analyse the effect of considering and ignoring fossil gradients on aquifer parameterization for the Upper Mega Aquifer system on the Arabian Peninsula. Further details can be found in a related publication (Schulz et al., 2017). References Schulz S, Walther M, Michelsen N, Rausch R, Dirks H, Al-Saud M, Merz R, Kolditz O, Schüth C. 2017. Improving large-scale groundwater models by considering fossil gradients. Advances in Water Resources 103: 32–43 DOI: 10.1016/j.advwatres.2017.02.010
Projective-geometric aspects of homogeneous third-order Hamiltonian operators
Creators: name: Ferapontov, Eugene V.
name: Pavlov, Maxim V.
name: Vitolo, Raffaele F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We investigate homogeneous third-order Hamiltonian operators of differential-geometric type. Based on the correspondence with quadratic line complexes, a complete list of such operators for two and three components is obtained.
Thronrede Seiner k. k. Hoheit des Erzherzogs Johann bei Eröffnung des constituirenden Reichstages am 22. Juli 1848; [1848]
Creators: name: Johann Österreich, Erzherzog
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: 2° (Druckspiegel: 41,5 x 22 cm)