cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Synthesis of porous MnO2 nanorods and electrochemical performance
Creators: name: Kumar, Yogesh
name: Gupta, Anshu
name: Chopra, Seema
name: Kumar, Ashwani
name: Kumar, Yogesh
Publisher: name: Zenodo
Year: 2021
Subjects: Supercapacitor
Electrode
Metal Oxide

description: We report a facile one-step hydrothermal method to prepare porous MnO 2 nanorods at 110 C for their application as electrode materials for high-quality supercapacitors [1] . The materials is characterized by X-ray diffraction, Transmission electron microscope, nitrogen gas adsorption measurements [2] . The electrochemical utilization of manganese dioxide (MnO 2 ) is investigated by cyclic voltammetry, galvanostatic charge discharge in aqueous 1M KOH electrolyte. The BET surface area of the MnO 2 is ranging between 278 m 2 /g. Since very similar specific capacitance values of about 236 F/g at 5 mV/s is found for samples, MnO 2 electrochemical utilization is more related to the pore size distribution as well as nanoroad size. Moreover, the efficiency of this supercapacitor is 97.4% retained even after 10000 charge/discharge cycles at 10 mA/g current density. The supercapacitor exhibits specific energy 5.18 Wh/kg and specific power of 242 W/kg.
Remote Sensing of Southern Appalachian Spruce Fir Forest
Creators: name: Boekschoten, Rudi
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2021

description: Southern Appalachian spruce-fir forest is a restricted and imperiled habitat characterized by two evergreen species, Red Spruce, Picea rubens, and endemic Fraser Fir, Abies fraseri, found at high elevations in North Carolina, Virginia, and Tennessee. This habitat contains rare and imperiled species such as the Federally Endangered spruce-fir moss spider. Spruce-fir forests have been severely impacted by historical logging, acid rain, and invasive balsam wooly adelgid. The forests are likely to be severely impacted by warming climates, as they are restricted to a narrow climatic window. Remote sensing utilizing LandSat 8 surface reflectance data is an important and effective tool for identifying and mapping evergreen ecosystems such as spruce-fir forest. GIS layers and maps produced from this data can help researchers and conservation practitioners gain a greater and more nuanced knowledge of the ecosystem as a whole. Currently no published research is available outlining a comprehensive and statistically sound validation of spruce-fir habitat classifications or derived population level statistics. The purpose of this study is to develop an understanding of the effectiveness of classification algorithms for identifying spruce-fir Forests and utilize this classification to understand the coverage and environmental parameters of these forests. Careful consideration of choices made in the classification and validation process establishes a methodology for both producing and using remotely sensed presence/absence maps. Three machine learning habitat classification algorithms, Support Vector Machines, Random Forest, and MaxEnt, were compared, as was the addition of EVI and NDVI vegetation indices. A proportional validation scheme was developed to produce relevant and comparable measures of classification accuracy. Machine learning classifications of spruce-fir forests were found to be an effective and efficient method to produce presence-absence classifications and population level parameters for spruce-fir forests, with Support Vector Machines classification performing best.
Materials and methods from Exploring the underwater silken architectures of caddisworms: comparative silkomics across two caddisfly suborders.
Creators: name: Frandsen, Paul B.
name: Bursell, Madeline G.
name: Taylor, Adam M.
name: Wilson, Seth B.
name: Steeneck, Amy
name: Stewart, Russell J.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Biochemistry
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 90301 Biomaterials
subject: FOS: Medical engineering

description: Experimental materials and methods
Convective regularization for optical flow
Creators: name: Iglesias, José A.
name: Kirisits, Clemens
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optimization and Control (math.OC)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 49N45, 68T45, 68U10

description: We argue that the time derivative in a fixed coordinate frame may not be the most appropriate measure of time regularity of an optical flow field. Instead, for a given velocity field $v$ we consider the convective acceleration $v_t + \nabla v v$ which describes the acceleration of objects moving according to $v$. Consequently we investigate the suitability of the nonconvex functional $\|v_t + \nabla v v\|^2_{L^2}$ as a regularization term for optical flow. We demonstrate that this term acts as both a spatial and a temporal regularizer and has an intrinsic edge-preserving property. We incorporate it into a contrast invariant and time-regularized variant of the Horn-Schunck functional, prove existence of minimizers and verify experimentally that it addresses some of the problems of basic quadratic models. For the minimization we use an iterative scheme that approximates the original nonlinear problem with a sequence of linear ones. We believe that the convective acceleration may be gainfully introduced in a variety of optical flow models.
(1060) Rosalie Alice Romer
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Collective flow in high-multiplicity proton-proton collisions
Creators: name: Kalaydzhyan, Tigran
name: Shuryak, Edward
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present an evidence of strong radial flow in high-multiplicity pp collisions. We analyze the CMS data on the inclusive spectra of the charged pions, kaons and protons in the LHC $\sqrt{s}=7$ TeV collisions. For $\gtrsim 75$ we demonstrate the consistency of the hydrodynamic description with the (idealized) Gubser's flow. Using a one parameter fit of the model to experimental data, we obtain the initial fireball size to be of the order of 1 fm. At smaller multiplicities, the fit cannot be performed which shows a limitation of the hydrodynamic approach and provides us with falsifiability of our theory.
description: 5 pages
The level and determinants of multimodal travel behavior: Does trip purpose make a difference?
Creators: name: An, Zihao
name: Heinen, Eva
name: Watling, David
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Multimodality refers to the phenomenon of using more than one mode of transport in a given period. Encouraging multimodality potentially provides an effective solution to reduce CO2 emissions and induce modal shifts toward sustainable transport. This research investigates the extent to which the level and correlates of multimodality differ by trip purpose. We used one-week travel diaries of the English National Travel Survey. Our analyses showed that the level of multimodality varied by trip purpose and the associated time-space variability as well as by the number of trip stages. We found that the level of variability in departure time and travel distance was greater for leisure trips than for maintenance trips, which was in turn greater than for work trips. Trips that were more variable in departure time and travel distance showed on average higher levels of individual multimodality, but only if sufficient stages (at least 3) were made. Moreover, we detected cross-purpose disparities in correlates of multimodality in terms of significance and variance explained. This research may provide support to the development of trip purpose-specific policies aiming to increase multimodality.
(1056) Charles Nugent Chester
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
(1057) Leila Harriet Robinson
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Gravitational field equations near an arbitrary null surface expressed as a thermodynamic identity
Creators: name: Chakraborty, Sumanta
name: Parattu, Krishnamohan
name: Padmanabhan, T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Previous work has demonstrated that the gravitational field equations in all Lanczos-Lovelock models imply a thermodynamic identity TdS=dE+PdV (where the variations are interpreted as changes due to virtual displacement along the affine parameter) in the near-horizon limit in static spacetimes. Here we generalize this result to any arbitrary null surface in an arbitrary spacetime and show that certain components of the Einstein's equations can be expressed in the form of the above thermodynamic identity. We also obtain an explicit expression for the thermodynamic energy associated with the null surface. Under appropriate limits, our expressions reduce to those previously derived in the literature. The components of the field equations used in obtaining the current result are orthogonal to the components used previously to obtain another related result, viz. that some components of the field equations reduce to a Navier-Stokes equation on any null surface, in any spacetime. We also describe the structure of Einstein's equations near a null surface in terms of three well-defined projections and show how the different results complement each other.
description: v2, 25 pages, no figures, to appear in JHEP
Detector Array Readout with Traveling Wave Amplifiers
Creators: name: Giachero, A.
name: Barone, C.
name: Borghesi, M.
name: Carapella, G.
name: Caricato, A. P.
name: Carusotto, I.
name: Chang, W.
name: Cian, A.
name: Di Gioacchino, D.
name: Enrico, E.
name: Falferi, P.
name: Fasolo, L.
name: Faverzani, M.
name: Ferri, E.
name: Filatrella, G.
name: Gatti, C.
name: Giubertoni, D.
name: Greco, A.
name: Kutlu, C.
name: Leo, A.
name: Ligi, C.
name: Maccarrone, G.
name: Margesin, B.
name: Maruccio, G.
name: Matlashov, A.
name: Mauro, C.
name: Mezzena, R.
name: Monteduro, A. G.
name: Nucciotti, A.
name: Oberto, L.
name: Pagano, S.
name: Pierro, V.
name: Piersanti, L.
name: Rajteri, M.
name: Rizzato, S.
name: Semertzidis, Y. K.
name: Uchaikin, S.
name: Vinante, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Noise at the quantum limit over a large bandwidth is a fundamental requirement for future applications operating at millikelvin temperatures, such as the neutrino mass measurement, the next-generation x-ray observatory, the CMB measurement, the dark matter and axion detection, and the rapid high-fidelity readout of superconducting qubits. The read out sensitivity of arrays of microcalorimeter detectors, resonant axion-detectors, and qubits, is currently limited by the noise temperature and bandwidth of the cryogenic amplifiers. The DARTWARS (Detector Array Readout with Traveling Wave AmplifieRS) project has the goal of developing high-performing innovative traveling wave parametric amplifiers (TWPAs) with a high gain, a high saturation power, and a quantum-limited or nearly quantum-limited noise. The practical development follows two different promising approaches, one based on the Josephson junctions and the other one based on the kinetic inductance of a high-resistivity superconductor. In this contribution we present the aims of the project, the adopted design solutions and preliminary results from simulations and measurements.
Supplemental Figure 1 from Exploring the underwater silken architectures of caddisworms: comparative silkomics across two caddisfly suborders
Creators: name: Frandsen, Paul B.
name: Bursell, Madeline G.
name: Taylor, Adam M.
name: Wilson, Seth B.
name: Steeneck, Amy
name: Stewart, Russell J.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Biochemistry
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 90301 Biomaterials
subject: FOS: Medical engineering

description: Full-length P. elsis H-fibroin sequence
title: Evaluierung eines Fixierungsverfahrens zwischen Kunststoffträger und Stahlstift
Creators: name: Fukar, Mario
Publisher: name: FH CAMPUS 02 (CAMPUS 02 Fachhochschule der Wirtschaft)
Year: 2023
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten

description: Das Unternehmen LOGICDATA entwickelt und produziert Antriebssysteme für höhenverstellbare Tische. Die erste Station der Produktionslinie, in welcher der Zusammenbau der inneren Bauteile des Planetengetriebes durchgeführt wird, liefert in Punkto Qualität keine guten Ergebnisse. Insbesondere die Resultate des derzeitig eingesetzten Fixierungsverfahrens zwischen Planetenträger und Zahnradachse liegen am unteren Ende der Qualitätsanforderung. Das Ziel dieser Arbeit war es, das Fügeverfahren erneut zu evaluieren und ein neues Verfahren für die Fixierung zwischen Zahnradachse und Kunststoffplanetenträger zu finden. Alle gewählten Verfahren sollen mit den tatsächlichen Materialien zusätzlich getestet werden. Im ersten Schritt wurden alle Verfahren, die für die Lösung der Fixierung zwischen Kunststoff und Stahl in Frage kommen, anhand der Theorie erklärt. Für jedes der Verfahren wurden separat Tests durchgeführt und die Ergebnisse dokumentiert. Im Anschluss daran wurden alle erfolgreich getesteten Verfahren einander mit Hilfe einer Nutzwertanalyse gegenübergestellt und bewertet. Zudem wurden nötige Änderungen am Planetenträger für die gewählten Verfahren aufgezeigt. Als Ergebnis der Nutzwertanalyse stellte sich heraus, dass das Verfahren Ultraschallschweißen das beste Gesamtergebnis liefert. Abschließend kann festgehalten werden, dass es nötig ist, Änderungen am Planetenträger durchzuführen, um stabilere Ergebnisse mit den Verfahren erzielen zu können. Anschließend müssen weitere Tests mit dem Verfahren Ultraschallschweißen durchgeführt werden, damit die notwendigen Parameter zielgerecht eingestellt werden können.
description: The company LOGICDATA develops and produces drive systems for height-adjustable tables. The production tool which carries out the assembly of the inner parts of the gearbox is presently not producing good results in terms of quality. The locking between planet carrier and gear axis causes problems. The purpose of this thesis was to find a better solution for this locking procedure. All of the chosen solutions should be tested with the actually used materials. The first step was to identify and explain the possible processes which could solve the problem. For each of the solutions tests were carried out and the outcomes were documented. After that the different procedures were compared using a value benefit analysis. The necessary changes on the planet carrier were identified and documented. As a result it was found that ultrasonic welding is the best technique to solve this problem. The principal conclusion was, that in order to achieve better results, small modifications of the product need to be made, more detailed tests have to be performed and all necessary parameters for ultrasonic welding have to be set properly.
(1053) Edward Yates Chester
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
On the emergence of heat waves in the transient thermal grating geometry
Creators: name: Zhang, Chuang
name: Huberman, Samuel
name: Wu, Lei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences
subject: 82D37, 80A05 80A19

description: The propagation of heat in the transient thermal grating geometry is studied based on phonon Boltzmann transport equation (BTE) in different phonon transport regimes. Our analytical and numerical results show that the phonon dispersion relation and temperature play a significant role in the emergence of heat wave. For the frequency-independent BTE, the heat wave appears as long as the phonon resistive scattering is not sufficient, while for the frequency-dependent BTE, the heat wave could disappear in the ballistic regime, depending on the grating period and temperature. We predict that the heat wave could appear in the suspended graphene and silicon in extremely low temperature but disappear at room temperature.
description: 9 pages, 8 figures
(1054) Carolina Smith
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Hyperfine spectroscopy of antihydrogen, hydrogen, and deuterium
Creators: name: Widmann, Eberhard
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The prospects of tests of CPT symmetry using precision spectroscopy of antihydrogen are discussed with special emphasis on the ground-state hyperfine structure, a measurement of which is the aim of the ASACUSA collaboration at the AD/ELENA facility of CERN. Ongoing parallel experiments using hyperfine spectroscopy of hydrogen and deuterium aiming at studying Lorentz invariance by determining coefficients of the Standard Model Extension framework are described.
description: 8 pages 2 figures, Physics of Elementary Particles and Atomic Nuclei, in print, as part of the proceedings of the International Conference on Precision Physics and Fundamental Physical Constants, FFK2021
Ensuring successful introduction of Wolbachia in natural populations of Aedes aegypti by means of feedback control
Creators: name: Bliman, Pierre-Alexandre J.
name: Aronna, M. Soledad
name: Coelho, Flávio C.
name: da Silva, Moacyr A. H. B.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Optimization and Control (math.OC)
subject: FOS: Biological sciences
subject: FOS: Mathematics
subject: 92D30 (Primary) 34C12, 93D15, 93D25 (Secondary)

description: The control of the spread of dengue fever by introduction of the intracellular parasitic bacterium Wolbachia in populations of the vector Aedes aegypti, is presently one of the most promising tools for eliminating dengue, in the absence of an efficient vaccine. The success of this operation requires locally careful planning to determine the adequate number of individuals carrying the Wolbachia parasite that need to be introduced into the natural population. The introduced mosquitoes are expected to eventually replace the Wolbachia-free population and guarantee permanent protection against the transmission of dengue to human. In this study, we propose and analyze a model describing the fundamental aspects of the competition between mosquitoes carrying Wolbachia and mosquitoes free of the parasite. We then use feedback control techniques to devise an introduction protocol which is proved to guarantee that the population converges to a stable equilibrium where the totality of mosquitoes carry Wolbachia.
description: 24 pages, 5 figures
What aspects of traffic intensity most influence cycling mode choice? A study of commuting in Surrey, UK
Creators: name: Grudgings, Nick
name: Hughes, Susan
name: Hagen-Zanker, Alex
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy

description: Motorized traffic discourages cycling, but the relative influence of different aspects of traffic intensity on commuter cycling rates is under examined. This paper investigates these influences. It employs census data that describes the origins, destinations and mode choices of commuters traveling 2–5 km in Surrey, UK (n = 172,665) and derives the shortest cycling route available for each commuter. Observed and modeled transport data are used to characterize traffic on these routes. The relationship between route-level traffic characteristics and the probability a commuter chooses to cycle is then examined using logit models for all commuters, males (42%) and females (58%). Two models consider the following aspects of traffic intensity both along the cycling route and crossing (intersecting) the route at junctions: speed, volume and the proportion of heavy goods vehicles. The models also consider the influence of separated cycle paths, hilliness and distance. Above-median traffic speeds (>29 km/h) along a commuting route is shown to have the greatest negative influence on cycling propensity, followed by above-median traffic volumes (>273 veh/h) and above-median speeds (in combination) crossing the commuting route. Cycle paths have a positive influence on cycling propensity, whereas the proportion of heavy goods vehicles does not show a significant relationship. The results imply that careful management of traffic at the route scale or the provision of separated cycle paths could encourage cycling on key commuting corridors. The relative influence of different characteristics could also identify the optimal locations for intervention. Findings support 30 km/h (20 mph) speed limits as a mechanism for encouraging cycling.
La Sicurezza Alimentare e le Politiche Locali del Cibo al Convegno SIDEA 2022
Creators: name: Felici, Francesca
name: Curcio, Francesca
Publisher: name: Re|Cibo
Year: 2023

description: La profonda instabilità del sistema agro-alimentare e le sfide che questo dovrà affrontare nel prossimo futuro richiedono investimenti in tecnologie ed innovazioni sostenibili, al fine di raggiungere un equilibrio tra lo sviluppo economico e la dimensione sociale ed ambientale.
description: Re|Cibo, V. 1 N. 2 (2022): ReCibo Rivista della Rete Italiana Politiche Locali del Cibo - Numero 2
Agricultural Cooperatives in Japan: An Institutional Approach
Creators: name: Kurimoto, Akira
name: Kurimoto, Akira
Publisher: name: Unknown
Year: 2004
Subjects: Agribusiness

description: How can we explain the reason why cooperatives have evolved so differently? This article argues that the institutional framework gives a decisive influence in organizational evolution and the historic path has been taken by interaction between institutions and organizations. The Japanese agricultural cooperatives are analyzed from institutional perspectives. They were created at the end of the 19th century under overwhelming European influence but evolved as a quite different model under the strong impacts of industrial policies and institutions. They developed as multi-purpose cooperatives bearing triple natures as state agency, pressure group and cooperative per se. The new economy is shifting public policy from protectionist to procompetition and the resulting institutional changes are posing challenges to cooperatives. Their future depends on their willingness to innovate themselves by adjusting to the new environment while applying cooperative advantages.
Supplemental Figure 2 from Exploring the underwater silken architectures of caddisworms: comparative silkomics across two caddisfly suborders
Creators: name: Frandsen, Paul B.
name: Bursell, Madeline G.
name: Taylor, Adam M.
name: Wilson, Seth B.
name: Steeneck, Amy
name: Stewart, Russell J.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Biochemistry
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 90301 Biomaterials
subject: FOS: Medical engineering

description: Silk gland TEM
Random translation-invariant Hamiltonians and their spectral gaps
Creators: name: Jauslin, Ian
name: Lemm, Marius
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider random translation-invariant frustration-free quantum spin Hamiltonians on $\mathbb Z^D$ in which the nearest-neighbor interaction in every direction is randomly sampled and then distributed across the lattice. Our main result is that, under a small rank constraint, the Hamiltonians are automatically frustration-free and they are gapped with a positive probability. This extends previous results on 1D spin chains to all dimensions. The argument additionally controls the local gap. As an application, we obtain a 2D area law for a cut-dependent ground state via recent AGSP methods of Anshu-Arad-Gosset.
description: 12 pages; 1 figure
Evaluating Collaborative Filtering Algorithms for Music Recommendations on Chinese Music Data
Creators: name: He, Yifan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2021
Subjects: Information and Library Science

description: In this thesis, I explored Collaborative Filtering algorithms used in music recommendation tasks in the Music Information Retrieval field. To find out if those CF algorithms work on Chinese music data, I developed a new dataset from the mainstream Chinese music streaming platform NetEase Could Music, and compared the performance of a series of Memory-based and Model-based collaborative filtering algorithms on our dataset. Our experimental results prove that these CF algorithms aiming at users’ information are effective on our dataset, and they have the predictive ability of music recommendation tasks on Chinese music data. In general, Model-based algorithms perform better than Memory-based algorithms. Within them, the SVD++ algorithm from Matrix Factorization-based methods reaches the best overall accuracy.
Fractons, non-Riemannian Geometry, and Double Field Theory
Creators: name: Angus, Stephen
name: Kim, Minkyoo
name: Park, Jeong-Hyuck
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We initiate a systematic study of fracton physics within the geometric framework of Double Field Theory. We ascribe the immobility and large degeneracy of the former to the non-Riemannian backgrounds of the latter, in terms of generalised geodesics and infinite-dimensional isometries. A doubled pure Yang-Mills or Maxwell theory reduces to an ordinary one coupled to a strain tensor of elasticity theory, and thus rather remarkably provides a unifying description of photons and phonons. Upon a general Double Field Theory background, which consists of Riemannian and non-Riemannian subspaces, the dual photon-phonon pair becomes fractonic over the non-Riemannian subspace. When the elasticity displacement vector condenses, minimally coupled charged particles acquire an effective mass even in the purely Riemannian case, yielding predictions for polaron physics and time crystals. Furthermore, the immobility of neutral particles along the non-Riemannian directions is lifted to a saturation velocity for charged particles. Utilising the differential geometry of Double Field Theory we also present curved spacetime extensions which exhibit general covariance.
description: v3) Published version. Title changed from "Fractons, geometrically" to current title; minor revisions. v2) 12 pages + appendix + references = 17 pages. Revised and expanded version: includes extensions to curved spacetime, predictions for polaron mass and time crystals, further clarifying remarks and details, and additional references. v1) 5 pages + supplemental material + references = 10 pages
Materials and methods from Exploring the underwater silken architectures of caddisworms: comparative silkomics across two caddisfly suborders
Creators: name: Frandsen, Paul B.
name: Bursell, Madeline G.
name: Taylor, Adam M.
name: Wilson, Seth B.
name: Steeneck, Amy
name: Stewart, Russell J.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Biochemistry
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 90301 Biomaterials
subject: FOS: Medical engineering

description: Experimental materials and methods
A Comparison of Limit Setting Methods for the On-Off Problem
Creators: name: Rolke, Wolfgang A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: High Energy Physics - Experiment (hep-ex)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We study the frequentist properties of confidence intervals for the On-Off problem. The methods include all those in common use today. We derive explicit formulas for the limits and calculate the true coverage and the expected lengths of these methods.
Revealing the ultra-sensitive calorimetric properties of supercon-ducting magic-angle twisted bilayer graphene
Creators: name: Di Battista, G.
name: Seifert, P.
name: Watanabe, K.
name: Taniguchi, T.
name: Fong, K. C.
name: Principi, A.
name: Efetov, D. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The allegedly unconventional superconducting phase of magic-angle twisted bilayer graphene (MATBG)1 has been predicted to possess extraordinary thermal properties, as it is formed from a highly diluted electron ensemble with both a record-low carrier density n ~ 10^11 cm-2 and electronic heat capacity Ce < 100 kB. While these attributes position MATBG as a ground-breaking material platform for revolutionary calorimetric applications2, these properties have so far not been experimentally shown. Here we reveal the ultra-sensitive calorimetric properties of a superconducting MATBG device, by monitoring its temperature dependent critical current Ic under continuous laser heating with a wavelength of 1550nm. From the bolometric effect, we are able to extract the temperature dependence of the electronic thermal conductance Gth, which remarkably has a non-zero value Gth = 0.19 pW/K at 35mK and in the low temperature limit is consistent with a power law dependence, as expected for nodal superconductors. Photo-voltage measurements on this non-optimized device reveal a peak responsivity of S = 5.8 x 10^7 V/W when the device is biased close to Ic, with a noise-equivalent power of NEP = 5.5 x 10^-16 WHz^-1/2. Analysis of the intrinsic perfor-mance shows that a theoretically achievable limit is defined by thermal fluctuations and can be as low as NEPTEF < 10^-20 WHz-1/2, with operation speeds as fast as ~ 500 ns. This establishes superconducting MATBG as a revolutionizing active material for ultra-sensitive photon-detection applications, which could enable currently unavailable technologies such as THz photon-number-resolving single-photon-detectors.
Metagenomic Influential Insights in the Formation of Biogenic Iron Hydroxysulfate Precipitates by Ferrous Oxidative Microbial Consortia
Creators: name: Castillo, Daladier M.
name: Medina, Jesus P.
name: Gamarra, Francisco
name: Delgado, Sandra
name: Chipana, Virginia
name: Clavijo, Claudia
name: Ccorahua-Santo, Robert
name: Peceros-Melchor, Mesalina
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Sociology
subject: FOS: Sociology
subject: Marine Biology
subject: Inorganic Chemistry
subject: Hematology

description: The formation of iron hydroxysulfate precipitated minerals by microbial bioleaching is an undesired dominant process because it decreases the solubilization efficiency of targeted metals. To date, the microbial role in forming these precipitated minerals is unclear. Herein, we compared two microbial community diversity (consortia M1-18 and M8-15) with the distinct formation of secondary iron minerals. In the case of M1-18, a 16S rRNA metagenomic analysis revealed a higher microbial diversity and a prevalence of Ferrimicrobium and Acidimicrobiacea. This consortium also showed a slightly higher oxidation capacity and a remarkably higher particulate precipitate capacity of secondary minerals. In contrast, the consortium M8-15 showed lower diversity and poor precipitate capacity. XRD, EDS, and FE-SEM analysis of secondary iron minerals showed that the microbial consortia promote the mineralogical formation of the secondary iron precipitates in the form of schwertmannite, an early metastable phase that can be easily transformed to jarosite.
Alimentazione, prezzi, mercato e povertà. Le interazioni delle molteplici cause della più lunga crisi economica nella storia recente viste dai campi.
Creators: name: Onorati, Antonio
Publisher: name: Re|Cibo
Year: 2023

description: Manchiamo di cibo, manchiamo di produzione agricola o manchiamo di politiche pubbliche capaci di invertire le tendenze attuali che lasciano i sistemi agricoli ed alimentari alla mercé del potere di mercato di un numero ristrettissimo di operatori, in particolare dell’industria finanziaria? Il diritto al cibo viene messo in discussione anche nelle società cosiddette avanzate, le rare aperture verso una transizione agroecologica contenute in alcune proposte europee vengono pesantemente messe in discussione con la scusa della guerra in Ucraina. Qualche spunto per riflettere su alcuni degli elementi che caratterizzano la crisi attuale come risultano dal dibattito interno delle  organizzazioni contadine europee.
description: Re|Cibo, V. 1 N. 2 (2022): ReCibo Rivista della Rete Italiana Politiche Locali del Cibo - Numero 2
Molecular tools from Experimentally flight-impaired females show higher levels of extra-pair paternity in the pied flycatcher Ficedula hypoleuca.
Creators: name: Plaza, Mireia
name: Cantarero, Alejandro
name: Gil, Diego
name: Moreno, Juan
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 60801 Animal Behaviour

description: Genotyping and paternity assignement method
Glaciochemistry and Pigment Producing Ability of Bacteria from the Roof of the World, the Glaciers of Karakoram, Pakistan
Creators: name: Hassan, Noor
name: Rafiq, Muhammad
name: Haleem, Abdul
name: Iqbal, Naveed
name: Khan, Mohsin
name: Shah, Aamir Ali
name: Hasan, Fariha
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The Karakoram Mountain Range (KMR) is one of the largest mountain ranges in the world, with ∼37% of its area glaciated. Glaciers harbor various microbes, including bacteria exposed to various extreme conditions. To thrive under these conditions, bacteria adopt various strategies, one of the most important being the production of pigments. Here, we present the geochemistry of ice, sediment and meltwaters sampled from Ghulmet, Ghulkin and Hopar glaciers of the Karakoram Range, Pakistan. In addition, we report the first information on the diversity of pigmented bacteria evaluated using a culture-dependent method and determined pigment production response of selected bacterial species to different temperatures. Geochemical analyses revealed Ca2+ and SO42– to be the most abundant cation and anion species across all glacial samples. Total organic carbon (TOC), total nitrogen (T.N.) and total phosphorus (T.P.) were found in the sediments of all glaciers studied in current research. Bacterial species were capable of producing a variety of different pigments, including alloxanthin, astaxanthin, bacterioruberin, β-carotene, 19'-hexanoyloxyfucoxanthin, peridinin, violacein and zeaxanthin. Culturable bacterial diversity based on two molecular biomarkers, 16S rRNA and rpoB gene, revealed total of 82 bacterial strains representing 25 genera across all glacial samples. This study provides the first characterization of glacier-associated, pigment-producing bacterial communities from the KMR. Findings are important for consideration of alternative sources of conventional pigment production in industrial fields.
title: Softwaretool zur schnelleren Adaptierung einer 2D Roboterbahnsteuerung
Creators: name: Krempl, Markus
Publisher: name: FH CAMPUS 02 (CAMPUS 02 Fachhochschule der Wirtschaft)
Year: 2023
Subjects: subject: 629 Andere Fachrichtungen der Ingenieurwissenschaften

description: In der Automobilindustrie gibt es unzählige Anwendungen, bei denen Industrieroboter Aufgaben eines Fertigungsprozesses übernehmen. Für die Erstellung und Anpassung von Roboterprogrammen sind Techniker erforderlich, die Erfahrung im Umgang mit Robotersteuerungen von unterschiedlichen Lieferanten haben. Zusätzlich sind spezielle Softwarepakete für die Roboterprogrammentwicklung ebenfalls erforderlich. Ziel ist es, ein Software-Tool zu erstellen, mit dem ohne spezieller Grundkenntnisse in der Roboterprogrammierung Anpassungen an Roboterprogrammen getätigt werden können. Ein zusätzliches Ziel ist es, die Änderungszeit dieser Programme zu verringern. Das Softwaretool enthält intuitive Funktionen zur Anpassung von 2D-Roboterbahnen. Die erste Funktion besteht darin, ein Roboterprogramm in das Softwaretool zu importieren, das aus Koordinaten aus einer Bahn besteht. Darauf basierend werden die Koordinaten verbunden, um den Weg der Roboterbewegung anzuzeigen. Außerdem sollen die Koordinaten veränderbar sein. Die Funktion wird per Drag & Drop realisiert. Diese Änderungen können wiederum im Programm des Roboters abgespeichert werden. Mit diesem Softwaretool ist man in der Lage, Roboterprogramme ohne besondere Erfahrung in der Programmierung und Bedienung zu ändern. Darüber hinaus verkürzt die Verwendung dieses Werkzeugs die Arbeitszeit für die Anpassung von Roboterprogrammen.
description: There are countless applications in the automotive industry in which industrial robots take on tasks of a manufacturing process. For the creation and adapting of robot programs, maintenance technicians are required, who have experience in handling robot controllers from different suppliers. In additional special software packages for robot program development are also required. The aim of this thesis is to create a software tool with the requirement to easily adapt robot programs without any experience in handling them. An additional goal is to decrease the changing time of those programs. Therefore, the software tool includes intuitive functions for adapting 2D robot pathways. The first function is to import a robot program into the software tool which includes coordinates from a path. Based on that the coordinates will be connected to show the path of the robot’s movement. Furthermore, the coordinates shall be alterable. The function is realized by drag and drop. Finally, it is possible to feed back the changes to the original robot program. With the use of that software tool it is possible to change robot programs without any special experience in programming and robot teaching. Furthermore, the use of this tool decreases working time for adapting robot programs.
Ranked General Lineal Models from Experimentally flight-impaired females show higher levels of extra-pair paternity in the pied flycatcher Ficedula hypoleuca.
Creators: name: Plaza, Mireia
name: Cantarero, Alejandro
name: Gil, Diego
name: Moreno, Juan
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 60801 Animal Behaviour

description: Results from ranking the GLMs within 4 units from the model with lowest AICc and QAICc
Connections on non-symmetric (generalized) Riemannian manifold and gravity
Creators: name: Ivanov, Stefan
name: Zlatanovic, Milan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Connections with (skew-symmetric) torsion on non-symmetric Riemannian manifold satisfying the Einstein metricity condition (NGT with torsion) are considered. It is shown that an almost Hermitian manifold is an NGT with torsion if and only if it is a Nearly Kähler manifold. In the case of an almost contact metric manifold the NGT with torsion spaces are characterized and a possibly new class of almost contact metric manifolds is extracted. Similar considerations lead to a definition of a particular classes of almost para-Hermitian and almost paracontact metric manifolds. The conditions are given in terms of the corresponding Nijenhuis tensors and the exterior derivative of the skew-symmetric part of the non-symmetric Riemannian metric.
description: 19p, no figures
Marijuana Legislation and Retroactive Redress
Creators: name: Griffin, Veronica
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2021
Subjects: Reparations for historical injustices
Marijuana--Social aspects
Marijuana--Law and legislation

description: This thesis explores the moral implications surrounding current and changing marijuana legislation. This topic is very pressing as more and more states are turning to decriminalization or legalization in efforts to reckon with the disastrous effects of the War on Drugs. This work is also very timely as two states have significantly changed their marijuana legislation just in the last two months (New Jersey legalized adult marijuana use on February 22, 2021 and New York legalized adult marijuana use on March 31st, 2021) and many other states have changed their marijuana legislation in the recent years. Based on philosophical methodology, empirical evidence, and historical context I develop a model approach to marijuana legislation.
Stability of boundary conditions for the Sadowsky functional
Creators: name: Freddi, Lorenzo
name: Hornung, Peter
name: Mora, Maria Giovanna
name: Paroni, Roberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 49J45, 74B20, 74K35

description: It has been proved by the authors that the (extended) Sadowsky functional can be deduced as the Gamma-limit of the Kirchhoff energy on a rectangular strip of height $\varepsilon$, as $\varepsilon$ tends to 0. In this paper we show that this Gamma-convergence result is stable when affine boundary conditions are prescribed on the short sides of the strip. These boundary conditions include those corresponding to a Möbius band.
First-principles molecular structure search with a genetic algorithm
Creators: name: Supady, Adriana
name: Blum, Volker
name: Baldauf, Carsten
Publisher: name: arXiv
Year: 2015
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: The identification of low-energy conformers for a given molecule is a fundamental problem in computational chemistry and cheminformatics. We assess here a conformer search that employs a genetic algorithm for sampling the low-energy segment of the conformation space of molecules. The algorithm is designed to work with first-principles methods, facilitated by the incorporation of local optimization and blacklisting conformers to prevent repeated evaluations of very similar solutions. The aim of the search is not only to find the global minimum, but to predict all conformers within an energy window above the global minimum. The performance of the search strategy is: (i) evaluated for a reference data set extracted from a database with amino acid dipeptide conformers obtained by an extensive combined force field and first-principles search and (ii) compared to the performance of a systematic search and a random conformer generator for the example of a drug-like ligand with 43 atoms, 8 rotatable bonds and 1 cis/trans bond.
Molecular tools from Experimentally flight-impaired females show higher levels of extra-pair paternity in the pied flycatcher Ficedula hypoleuca
Creators: name: Plaza, Mireia
name: Cantarero, Alejandro
name: Gil, Diego
name: Moreno, Juan
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 60801 Animal Behaviour

description: Genotyping and paternity assignement method