cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Μελέτη των οργανολητικών χαρακτηριστικών των ροζέ οίνων που παράγονται στην Ελλάδα
title: Sensory evaluation of Greek rose wines
titleType: AlternativeTitle
Creators: name: Κουκουλέτσος, Γεώργιος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2021
Subjects: Ροζέ οίνος
Αρωματικά συστατικά
Οργανοληπτική αξιολόγηση

description: Η αντίληψη της γεύσης και του αρώματος του οίνου είναι το αποτέλεσμα πλήθους αλληλεπιδράσεων μεταξύ ενός μεγάλου αριθμού χημικών ενώσεων και οργανοληπτικών υποδοχέων. Οι ενώσεις αλληλεπιδρούν και συνδυάζονται και εμφανίζουν συνεργιστικές και ανταγωνιστικές αλληλεπιδράσεις. Το χημικό προφίλ ενός οίνου προέρχεται από το σταφύλι, τη μικροχλωρίδα της ζύμωσης (κυρίως από την ζύμη Saccharomyces cerevisiae), τις δευτερογενείς μικροβιακές ζυμώσεις και διεργασίες που μπορεί να συμβούν και την ωρίμανση και αποθήκευση του οίνου. Η σύσταση των σταφυλιών εξαρτάται από το γονότυπο της αμπέλου και από την αλληλεπίδραση του γονότυπου και του φαινοτύπου με πολλούς περιβαλλοντικούς παράγοντες. Η μικροχλωρίδα, και ιδίως ο ζυμομύκητας που είναι υπεύθυνος για τη ζύμωση, συμβάλλει στο άρωμα του οίνου με διάφορους μηχανισμούς: πρώτον με τη χρήση συστατικών του χυμού των σταφυλιών και τη βιομετατροπή τους σε συστατικά που επηρεάζουν το άρωμα ή τη γεύση, δεύτερον παράγοντας ένζυμα που μετατρέπουν τις ουδέτερες ενώσεις των σταφυλιών σε αρωματικές ενώσεις και, τέλος, με την επιπλέον σύνθεση πολλών ενεργών αρωματικών πρωτογενών ενώσεων (π.χ. αιθανόλη, γλυκερόλη, οξικό οξύ και ακεταλδεΰδη) και δευτερογενών μεταβολιτών (π.χ. εστέρες, αλκοόλες, λιπαρά οξέα). Σκοπός της παρούσας εργασίας είναι η παρουσίαση μιας επισκόπησης σχετικά με το σχηματισμό των αρωματικών ενώσεων του οίνου, συμπεριλαμβανομένων των προδρόμων μορίων που υπάρχουν στα σταφύλια και των χημικών ενώσεων που παράγονται κατά την αλκοολική ζύμωση και σχετίζονται άμεσα με την παραγωγή αιθανόλης ή δευτερογενών μεταβολιτών καθώς και πως αυτά αντιλαμβάνονται κατά την οργανοληπτική αξιολόγηση του οίνου. Παρουσιάζεται η συμβολή της μηλικογαλακτικής ζύμωσης και της ωρίμανσης στο άρωμα και τη γεύση του οίνου. Επίσης, περιγράφονται οι μέθοδοι προσδιορισμού των αρωματικών συστατικών του οίνου είτε με χημικές αναλύσεις είτε με οργανοληπτική αξιολόγηση με στόχο τη συσχέτιση της χημικής σύστασης με τις μοναδικές οργανοληπτικές ιδιότητες για τις διαφορετικές ποικιλίες οίνων.
Network Dynamics and Knowledge Transfer: Network Dynamics and Knowledge Transfer in Virtual Organizations
Creators: name: Gandal, Neil
name: Stettner, Uriel
name: Gandal, Neil
name: Stettner, Uriel
Publisher: name: Unknown
Year: 2015
Subjects: subject: Financial Economics
subject: Network Dynamics
subject: Knowledge Spillovers
subject: Social Network
subject: Open Source

description: In this paper, we examine whether particular network structures foster knowledge transfer among distinct open-source projects. Deploying panel data, we compare organizations that were in a giant component of a network for relatively long periods of time with organizations that joined the giant component during the sample period. Our findings show that joining a large pool of knowledge (i.e., a giant component) allows projects to gain access to novel knowledge and ideas. Moreover, established projects within the giant component benefit differently from changes in network structures than projects that only recently entered such giant component of a network.
The nonlinear Schrödinger equation for orthonormal functions: I. Existence of ground states
Creators: name: Gontier, David
name: Lewin, Mathieu
name: Nazar, Faizan Q.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study the nonlinear Schrödinger equation for systems of $N$ orthonormal functions. We prove the existence of ground states for all $N$ when the exponent $p$ of the non linearity is not too large, and for an infinite sequence $N_j$ tending to infinity in the whole range of possible $p$'s, in dimensions $d\geq1$. This allows us to prove that translational symmetry is broken for a quantum crystal in the Kohn-Sham model with a large Dirac exchange constant.
description: Final version, to appear in Arch. Rat. Mech. Anal
Obstruction to a Higman embedding theorem for residually finite groups with solvable word problem
Creators: name: Rauzy, Emmanuel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20E26

description: We prove that, for a finitely generated residually finite group, having solvable word problem is not a sufficient condition to be a subgroup of a finitely presented residually finite group. The obstruction is given by a residually finite group with solvable word problem for which there is no effective method that allows, given some non-identity element, to find a morphism onto a finite group in which this element has a non-trivial image. We also prove that the depth function of this group grows faster than any recursive function.
description: 6 pages, 0 figures
Statistical Reconstruction of Qutrits
Creators: name: Bogdanov, Yu. I.
name: Chekhova, M. V.
name: Krivitsky, L. A.
name: Kulik, S. P.
name: Kwek, L. C.
name: Oh, C. H.
name: Penin, A. N.
name: Tey, M. K.
name: Zhukov, A. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We discuss a procedure of measurement followed by the reproduction of the quantum state of a three-level optical system - a frequency- and spatially degenerate two-photon field. The method of statistical estimation of the quantum state based on solving the likelihood equation and analyzing the statistical properties of the obtained estimates is developed. Using the root approach of estimating quantum states, the initial two-photon state vector is reproduced from the measured fourth moments in the field . The developed approach applied to quantum states reconstruction is based on the amplitudes of mutually complementary processes. Classical algorithm of statistical estimation based on the Fisher information matrix is generalized to the case of quantum systems obeying Bohr's complementarity principle. It has been experimentally proved that biphoton-qutrit states can be reconstructed with the fidelity of 0.995-0.999 and higher.
description: Submitted to Physical Review A
Prenatal Sex Selection and Girls’ Well‐Being: Evidence from India
Creators: name: Hu, Luojia
name: Schlosser, Analia
name: Hu, Luojia
name: Schlosser, Analia
Publisher: name: Unknown
Year: 2014
Subjects: subject: Financial Economics
subject: Son preference
subject: prenatal sex selection
subject: ultrasound
subject: sex ratio at birth
subject: gender discrimination
subject: child health

description: We study the impacts of prenatal sex selection on girls’ well‐being in India. We show that high sex ratios at birth reflect the practice of prenatal sex selection and apply a triple difference strategy to examine whether changes in health outcomes of girls relative to boys within states and over time are systematically associated with changes in sex‐ratios at birth. We find that an increase in prenatal sex selection leads to a reduction in girls’ malnutrition, in particular, underweight and wasting. We further explore various underlying channels linking between prenatal sex selection and girls’ outcomes.
CP-violating super Weyl anomaly
Creators: name: Nakagawa, Koichiro
name: Nakayama, Yu
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In CP-violating conformal field theories in four dimensions, the Pontryagin density can appear in the Weyl anomaly. The Pontryagin density in the Weyl anomaly is consistent, but it has a peculiar feature that the parent three-point function of the energy-momentum tensor can violate CP only (semi-)locally. In this paper, we study the supersymmetric completion of the Pontryagin density in the Weyl anomaly, where the central charge $c$ effectively becomes a complex number. The supersymmetry suggests that it accompanies the graviphoton $θ$ term associated with the R-symmetry gauging in the Weyl anomaly. It also accompanies new CP-violating terms in the R-current anomaly. While there are no conclusive perturbative examples of CP-violating super Weyl anomaly, we construct explicit supersymmetric dilaton effective action which generates these anomalies.
description: 21 pages, typos fixed, references added
Additional file 5 of Identification of potential novel biomarkers to differentiate malignant thyroid nodules with cytological indeterminate
Creators: name: Dandan Wu
name: Shudong Hu
name: Yongzhong Hou
name: Yingying He
name: Shubai Liu
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Figure S5. The scatterplots of Gene Significance (GS) for histology vs. Module Membership (MM) in the all modules (A~E). There is a highly significant correlation between GS and MM in this module, implying that the most important (central) elements of blue module also tend to be highly correlated with thyroid nodule histology trait.
Mechanisms of the Vertical Secular Heating of a Stellar Disk
Creators: name: Sotnikova, N. Ya.
name: Rodionov, S. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the nonlinear growth stages of bending instability in stellar disks with exponential radial density profiles.We found that the unstable modes are global (the wavelengths are larger than the disk scale lengths) and that the instability saturation level is much higher than that following from a linear criterion. The instability saturation time scales are of the order of one billion years or more. For this reason, the bending instability can play an important role in the secular heating of a stellar disk in the $z$ direction. In an extensive series of numerical $N$-body simulations with a high spatial resolution, we were able to scan in detail the space of key parameters (the initial disk thickness $z_0$, the Toomre parameter $Q$, and the ratio of dark halo mass to disk mass $M_{\rm h} / M_{\rm d}$). We revealed three distinct mechanisms of disk heating in the $z$ direction: bending instability of the entire disk, bending instability of the bar, and heating on vertical inhomogeneities in the distribution of stellar matter.
description: 22 pages including 8 figures. To be published in Astronomy Letters (v.29, 2003)
USING A SMARTPHONE APP TO COLLECT DATA ON SMALLHOLDER FARMING SYSTEMS IN ZAMBIA
Creators: name: Daum, Thomas
name: Buchwald, Hannes
name: Gerlicher, Ansgar
name: Birner, Regina
name: Daum, Thomas
name: Buchwald, Hannes
name: Gerlicher, Ansgar
name: Birner, Regina
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Labor and Human Capital
subject: Productivity Analysis
subject: ICT applications
subject: labour productivity
subject: data collection
subject: recall bias
subject: time use
subject: smallholder farming

description: One challenge of collecting socioeconomic data, such as data on time use, is recall biases. While time-use researchers have continuously developed new methods to make data collection more accurate and easy, these methods are difficult to use in developing countries, where study participants may have low literacy levels and no “clock”-based concepts of time. To contribute to the closing of this research gap, we developed a picture-based smartphone app called “Time-Tracker” that allows data recording in real time to avoid recall biases. We pilot tested the app in rural Zambia, collecting 2790 data days. In this paper, we compare the data recorded with the app to data collected with 24-hours recall questions. The results confirm the literature on recall biases, suggesting that using the app leads to valid results. We conclude that smartphone apps using visual tools provide new opportunities for researchers collecting socioeconomic data in developing countries.
WEB SCRAPING FOR FOOD PRICE RESEARCH
Creators: name: Hillen, Judith
name: Hillen, Judith
Publisher: name: Unknown
Year: 2018
Subjects: subject: food prices
subject: data collection
subject: digitalization
subject: big data
subject: e-commerce

description: Web scraping is a method for extracting large amounts of data from online sources. In food price analysis, however, this data collection technique has not yet received a lot of attention. We discuss how this method can be used in food price research and identify areas of application. We find that web scraping is a promising method to collect customized, high-frequency data in real time, overcoming several limitations of currently used food price data. While today’s applications mostly focus on (online) consumer prices, the scope of applications broadens as more and more price data are published online. To better deal with the technical and legal challenges of web scraping and to exploit its scalability, joint data collection projects in the field of agricultural and food economics should be considered.
VERMARKTUNGSINSTRUMENTE IM WEINTOURISMUS
Creators: name: Rüdiger, Jens
name: Hanf, Jon H.
name: Rüdiger, Jens
name: Hanf, Jon H.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: weintourismus
subject: destination
subject: vermarktung

description: Die Entwicklung des rückläufigen Direktabsatzes von Wein in der deutschen Weinwirtschaft erfordert von vielen Betrieben eine neue Ausrichtung der Unternehmensstrategie, um den Absatz der erzeugten Produkte zu garantieren. Der Weintourismus bietet hier großes Potential, das vor allem internationale Weinbaubetriebe bereits für sich entdeckt haben. In der Untersuchung wird der Frage nachgegangen, inwieweit Weintourismus für deutsche Weinbaubetriebe ein Instrument im Direktverkauf ist. Die empirische Untersuchung zeigt, dass Weintourismusaktivitäten generell einen direkten Einfluss auf die Zunahme des Direktverkaufs und die Gewinnung neuer Konsumenten hat und dies von Weinbaubetrieben aktiv genutzt wird. Darüber hinaus haben Winzergenossenschaften identisch wie Weingüter weintouristische Aktivitäten in ihre Unternehmensstruktur integriert und sehen dies als wichtigen Unternehmensbestandteil der Zukunft an. Dabei ist Weintourismus als Direktvermarktungsinstrument ein wichtiger Bestandteil primär von kleineren Weingütern. Generell lässt sich der Hintergrund, warum Weinbaubetriebe sich im Weintourismus engagieren, in drei unterschiedliche Bedeutungssegmente einteilen: zum einen als direktes, zum zweiten als indirektes Vermarktungsinstrument oder als eigene strategische Geschäftseinheit. Hierbei besteht immer eine Abhängigkeit zwischen Weingut und Destination, keine der beiden Seiten kann isoliert betrachtet werden, da diese im Bereich des Weintourismus nur als Symbiose agieren können.
Estimating the travel time and the most likely path from Lagrangian drifters
Creators: name: O'Malley, Michael
name: Sykulski, Adam M.
name: Laso-Jadart, Romuald
name: Madoui, Mohammed-Amin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applications (stat.AP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Computation (stat.CO)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We provide a novel methodology for computing the most likely path taken by drifters between arbitrary fixed locations in the ocean. We also provide an estimate of the travel time associated with this path. Lagrangian pathways and travel times are of practical value not just in understanding surface velocities, but also in modelling the transport of ocean-borne species such as planktonic organisms, and floating debris such as plastics. In particular, the estimated travel time can be used to compute an estimated Lagrangian distance, which is often more informative than Euclidean distance in understanding connectivity between locations. Our methodology is purely data-driven, and requires no simulations of drifter trajectories, in contrast to existing approaches. Our method scales globally and can simultaneously handle multiple locations in the ocean. Furthermore, we provide estimates of the error and uncertainty associated with both the most likely path and the associated travel time.
description: 27 pages, 10 figures in the main text. 13 pages, 8 figures in the supplemental material
Additional file 1 of Survival and mortality of elderly men with localized prostate cancer managed with primary androgen deprivation therapy or by primary observation
Creators: name: Seikkula, Heikki
name: Boström, Peter J.
name: Seppä, Karri
name: Pitkäniemi, Janne
name: Malila, Nea
name: Kaipia, Antti
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1: Table S1. Stage distribution of prostate cancer patients by TNM-classification in Finland from 1985 to 2014.
Additional file 4 of Identification of potential novel biomarkers to differentiate malignant thyroid nodules with cytological indeterminate
Creators: name: Dandan Wu
name: Shudong Hu
name: Yongzhong Hou
name: Yingying He
name: Shubai Liu
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Figure S4. Clustering dendrogram of Genes, with dissimilarity based on topological overlap. Different colors index different modules. Six modules are identified. Grey bars represent Genes that do not belong to any other modules and are not co-expressed.
Drawings of complete graphs in the projective plane
Creators: name: Arroyo, Alan
name: McQuillan, Dan
name: Richter, R. Bruce
name: Salazar, Gelasio
name: Sullivan, Matthew
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Hill's Conjecture states that the crossing number $\text{cr}(K_n)$ of the complete graph $K_n$ in the plane (equivalently, the sphere) is $\frac{1}{4}\lfloor\frac{n}{2}\rfloor\lfloor\frac{n-1}{2}\rfloor\lfloor\frac{n-2}{2}\rfloor\lfloor\frac{n-3}{2}\rfloor=n^4/64 + O(n^3)$. Moon proved that the expected number of crossings in a spherical drawing in which the points are randomly distributed and joined by geodesics is precisely $n^4/64+O(n^3)$, thus matching asymptotically the conjectured value of $\text{cr}(K_n)$. Let $\text{cr}_P(G)$ denote the crossing number of a graph $G$ in the projective plane. Recently, Elkies proved that the expected number of crossings in a naturally defined random projective plane drawing of $K_n$ is $(n^4/8π^2)+O(n^3)$. In analogy with the relation of Moon's result to Hill's conjecture, Elkies asked if $\lim_{n\to\infty} \text{cr}_P(K_n)/n^4=1/8π^2$. We construct drawings of $K_n$ in the projective plane that disprove this.
Microplastics Reduce the Negative Effects of Litter-Derived Plant Secondary Metabolites on Nematodes in Soil
Creators: name: Kim, Shin Woong
name: Liang, Yun
name: Lozano, Yudi M.
name: Rillig, Matthias C.
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: adsorption
subject: Caenorhabditis elegans
subject: fiber
subject: phenolic compounds
subject: solvent
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Microplastics and plant litter are ubiquitous in the soil environment, and both materials can influence soil properties and biota. Plant litter releases secondary metabolites (e.g., phenolic compounds) during the decomposition process, including chemical compounds active in plant defense. Effects of microplastics and plant litter on soil biota have been studied independently but we have limited information about the combined effects of both sources of chemicals. Here, we specifically focused on the interaction between plant litter and microplastics, as well as their potential effects on soil biota (i.e., nematodes). We used soils from a previous experiment that included three different types of microplastic fibers (MFs) and four different types of plant litter, which were incubated in the soil in all combinations of materials. After soil incubation (42 days) in the previous experiment, we here tested for effects on nematodes (Caenorhabditis elegans). Plant litter treatments negatively affected the reproduction of nematodes, but these effects were reduced when the soils were incubated along with MFs. We measured the phenolic concentrations in plant litter extracts in a kinetic experiment and found that phenolic concentrations significantly decreased with some of the MF additions. Our results suggest that microplastics can affect the potential effects of natural chemicals such as plant phenolic compounds. We urge future studies to consider this possibility as a key explanatory process underpinning effects of microplastic in the soil environment.
Spin-Crossover Molecules on Surfaces: From Isolated Molecules to Ultrathin Films
Creators: name: Kipgen, Lalminthang
name: Bernien, Matthias
name: Tuczek, Felix
name: Kuch, Wolfgang
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: molecular spintronics
subject: spin-crossover molecules
subject: spinterfaces
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: Molecular spintronics seeks to use single or few molecules as functional building blocks for spintronic applications, directly relying on molecular properties or properties of interfaces between molecules and inorganic electrodes. Spin-crossover molecules (SCMs) are one of the most promising classes of candidates for molecular spintronics due to their bistability deriving from the existence of two spin states that can be reversibly switched by temperature, light, electric fields, etc. Building devices based on single or few molecules would entail connecting the molecule(s) with solid surfaces and understanding the fundamental behavior of the resulting assemblies. Herein, the investigations of SCMs on solid surfaces, ranging from isolated single molecules (submonolayers) to ultrathin films (mainly in the sub-10 nm range) are summarized. The achievements, challenges and prospects in this field are highlighted.
A MODEL FOR DATA CONSOLIDATION OF THE FISH MARKET IN CAPRI
Creators: name: Chang, Chiao-Ya
name: Witzke, Heinz-Peter
name: Latka, Catharina
name: Chang, Chiao-Ya
name: Witzke, Heinz-Peter
name: Latka, Catharina
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Aquaculture
subject: Fish market
subject: CAPRI
subject: Modelling

description: Economic fish and aquaculture modelling is still at the beginning. The lack of a comprehensive and consistent data set for the production and trade of fish and other fishery products has restrained the modelling attempts so far. Here we show a methodology for filling the present data gaps and for overcoming existent inconsistencies to create a database that may support modelling of the fish sector, illustrated at the case of the fish module in the CAPRI model. We avoid double counting with respect to fishmeal and fish oil production and trade by disentangling the available data from key statistical sources relying on a minimization of normalized least squares. The presented data correction procedure and the resulting database may furthermore be of value for other models of global fish markets analyzing the importance of fishery and aquaculture products for global food security. The impact of the data correction procedure is demonstrated for the most relevant fish and fishery products producing and trading countries, comparing the resulting consolidated to the initial data.
Split Supersymmetry
Creators: name: Giudice, G. F.
name: Romanino, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The naturalness criterion applied to the cosmological constant implies a new-physics threshold at 10^-3 eV. Either the naturalness criterion fails, or this threshold does not influence particle dynamics at higher energies. It has been suggested that the Higgs naturalness problem may follow the same fate. We investigate this possibility and, abandoning the hierarchy problem, we use unification and dark matter as the only guiding principles. The model recently proposed by Arkani-Hamed and Dimopoulos emerges as a very interesting option. We study it in detail, analysing its structure, and the conditions for obtaining unification and dark matter.
description: 29 pages, comments, corrections and references added
Spintronics meets density matrix renormalization group: Quantum spin torque driven nonclassical magnetization reversal and dynamical buildup of long-range entanglement
Creators: name: Petrović, Marko D.
name: Mondal, Priyanka
name: Feiguin, Adrian E.
name: Plecháč, Petr
name: Nikolić, Branislav K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We introduce time-dependent density matrix renormalization group (tDMRG) as a solution to long standing problem in spintronics -- how to describe spin-transfer torque (STT) between flowing spins of conduction electrons and localized spins within a magnetic material by treating the dynamics of both spin species fully quantum-mechanically. In contrast to conventional Slonczewski-Berger STT, where the localized spins are viewed as classical vectors obeying the Landau-Lifshitz-Gilbert equation and where their STT-driven dynamics is initiated only when the spin-polarization of flowing electrons and localized spins are noncollinear, quantum STT can occur when these vectors are collinear but antiparallel. Using tDMRG, we simulate the time evolution of a many-body quantum state of electrons and localized spins, where the former are injected as a spin-polarized current pulse while the latter comprise a quantum Heisenberg ferromagnetic metallic (FM) spin-$\frac{1}{2}$ XXZ chain initially in the ground state with spin-polarization antiparallel to that of injected electrons. The quantum STT reverses the direction of localized spins, but without rotation from the initial orientation, when the number of injected electrons exceeds the number of localized spins. Such nonclassical reversal, which is absent from LLG dynamics, is strikingly inhomogeneous across the FM chain and it can be accompanied by reduction of the magnetization associated with localized spins, even to zero at specific locations. This is because quantum STT generates a highly entangled nonequilibrium many-body state of all flowing and localized spins, despite starting from the initially unentangled ground state of a mundane FM. Furthermore, the mutual information between localized spins at the FM edges remains nonzero even at infinite separation as the signature of dynamical buildup of long-range entanglement.
description: 11 pages, 8 figures; four movie available from https://wiki.physics.udel.edu/qttg/Publications
Looking for nonstandard CP violation in B^\pm -> D_s^\pm D^0 pi^0 decays
Creators: name: Epele, L.
name: Dumm, D. Gomez
name: Mendez-Galain, R.
name: Szynkman, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the possibility of measuring nonstandard CP violation effects through Dalitz plot analysis in B^\pm -> D_s^\pm D^0 pi^0 decays. The accuracy in the extraction of CP violating phases is analyzed by performing a Monte Carlo simulation of the decays, and the magnitude of possible new physics effects is discussed. It is found that this represents a hopeful scenario for the search of new physics.
description: 14 pages, 1 figure
NEUROECONOMICS IN DER AGRARÖKONOMISCHEN FORSCHUNG: EINE STATUS QUO ANALYSE
Creators: name: Schukat, S.
name: Heise, H.
name: Schukat, S.
name: Heise, H.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural Finance
subject: Financial Economics
subject: Marketing
subject: FOS: Economics and business
subject: Neuroökonomie
subject: Consumer Neuroscience
subject: Neuromarketing
subject: Agrar- und Ernährungswirtschaft

description: Die Neuroökonomik fungiert als interdisziplinäre Schnittstelle zwischen den Neuro- und Wirtschaftswissenschaften. Sie verfolgt als zentrales Ziel, menschliches Verhalten in wirt-schaftlichen Entscheidungssituationen auf neuronaler Ebene abzubilden und individuelle Handlungsmotive situativ zu derivieren. Inhalt dieses Beitrags sind Potenziale der Anwen-dung neurowissenschaftlicher Methoden im Kontext agrarökonomischer Forschungsfragen. Weiterhin erfolgen die Vorstellung der gängigsten angewandten Verfahren sowie eine ausge-wählte Darstellung bisheriger Studienergebnisse. Insgesamt etablierte sich die Forschungsdis-ziplin der Neuroökonomie seit der Jahrtausendwende sukzessiv als aktive Wissenschaft. Zu-dem kristallisiert sie sich als potenzieller Lösungsansatz zur Begegnung verschiedener Her-ausforderungen der agrarökonomischen Forschung, bspw. bei der Interpretation diskrepanten Konsumentenverhaltens, heraus. Insgesamt werden dreizehn Studien vorgestellt, die den Handlungsfeldern Neuromarketing und Consumer Neuroscience, zu Deutsch Verbraucherwis-senschaft, zuzuordnen sind. Im Zuge dessen wird demonstriert, dass konkrete Fragestellungen mit Bezug zur Agrarökonomie mittels neurowissenschaftlicher Methoden aus einer neuen Perspektive erfolgreich untersucht werden konnten. Die bisherigen Ergebnisse zeigen, dass sich die Neuroökonomik als Mittel zur Untersuchung zukünftiger Forschungsfragen eignet.
Thick accretion disk and Its super Eddington luminosity around spinning blackholes
Creators: name: Jang, Uicheol
name: Yi, Yu
name: Kim, Hongsu
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In the general accretion disk model theory, the accretion disk surrounding an astronomical object comprises fluid rings obeying Keplerian motion. However, we should consider relativistic and rotational effects as we close in toward the center of accretion disk surrounding spinning compact massive objects such as a black hole or a neutron star. In this study, we explore the geometry of the inner portion of the accretion disk in the context of Mukhopadhyay's pseudo Newtonian potential approximation for the full general relativity theory. We found that the shape of the accretion disk "puffs up" or becomes thicker and the luminosity of the disk could exceed the Eddington luminosity near the surface of the compact spinning black hole.
Ionization structure in the winds of B[e] supergiants: I. Ionization equilibrium calculations in a H plus He wind
Creators: name: Kraus, M.
name: Lamers, H. J. G. L. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The non-spherically symmetric winds of B[e] supergiants are investigated. An empirical density distribution is chosen that accounts for the density concentrations and ratios derived from observations, and our model winds are assumed to contain only hydrogen and helium. We first calculate the approximate ionization radii for H and He and compare the results with the ionization fractions calculated from the more accurate ionization balance equations. We find that winds with a r^-2 density distribution turn out to reach a constant ionization fraction as long as the wind density is low, i.e. in polar direction. For the high density equatorial regions, however, we find that the winds become neutral just above the stellar surface of the hot and massive B[e] supergiants forming a disk-like neutral region. In such a disk molecules and dust can form even very near the hot central star.
description: 11 pages, 8 figures, accepted for publication in A&A
PIXHELL: When Pixels Learn to Scream
Creators: name: Guri, Mordechai
Publisher: name: arXiv
Year: 2025
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: This paper presents a technique for generating sound by leveraging the electrical properties of liquid crystal displays (LCDs). The phenomenon occurs due to vibrational noise produced by capacitors within the LCD panel during rapid pixel state transitions. By modulating these transitions through specially crafted bitmap patterns projected onto the screen, we demonstrate how weak yet audible acoustic signals can be generated directly from the display. We designed, implemented, evaluated, and tested a system that repurposes the LCD as a sound-emitting device. Potential applications for this technique include low-power auditory feedback systems, short-range device communication, air-gap covert channels, secure auditory signaling, and innovative approaches to human-computer interaction.
description: Version of this paper accepted to 2024 IEEE 48th Annual Computers, Software, and Applications Conference (COMPSAC)
Semi-Device-Independent Random Number Generation with Flexible Assumptions
Creators: name: Pivoluska, Matej
name: Plesch, Martin
name: Farkas, Máté
name: Ružičková, Natália
name: Flegel, Clara
name: Valencia, Natalia Herrera
name: McCutcheon, Will
name: Malik, Mehul
name: Aguilar, Edgar A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Our ability to trust that a random number is truly random is essential for fields as diverse as cryptography and fundamental tests of quantum mechanics. Existing solutions both come with drawbacks -- device-independent quantum random number generators (QRNGs) are highly impractical and standard semi-device-independent QRNGs are limited to a specific physical implementation and level of trust. Here we propose a new framework for semi-device-independent randomness certification, using a source of trusted vacuum in the form of a signal shutter. It employs a flexible set of assumptions and levels of trust, allowing it to be applied in a wide range of physical scenarios involving both quantum and classical entropy sources. We experimentally demonstrate our protocol with a photonic setup and generate secure random bits under three different assumptions with varying degrees of security and resulting data rates.
description: 27 pages, 7 figures, 1 table
Dicrurus bracteatus Hartert 1919
Creators: name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Dicruridae
Dicrurus

description: Dicrurus (bracteatus?) buruensis Hartert
Dicrurus (bracteatus?) buruensis Hartert, 1919: 133 (‘‘Mt. Madang,’’ West Buru).
Now Dicrurus bracteatus buruensis Hartert, 1919. See Vaurie, 1949b: 293–295; 1962: 150; White and Bruce, 1986: 314–317; Dickinson, 2003: 493; and Rocamora and Yeatman-Berthelot, 2009: 216–217.
HOLOTYPE: AMNH 672596, adult male, collected on Kapala Madang (= Mount Madang), 03.15S, 126.09E (USBGN, 1982), western Buru Island, Moluccas, Indonesia, on 6 March 1902, by Heinrich Kühn (no. 4712). From the Rothschild Collection.
COMMENTS: In the original description, Hartert gave Kühn’s field number of the holotype and discussed males and females, but did not list his specimens. By 1919, when this form was named, Hartert would have had in the Rothschild Collection specimens collected by Kühn, William Doherty and J.M. Dumas (Hartert, 1900: 236) and Erwin Stresemann. Stresemann (1914b: 365) listed the form from Buru as Dicrurus atrocaeruleus amboinensis but did not further discuss it. I have considered the following specimens to be paratypes of buruensis: Fogi, AMNH 672594, 672595 (Kühn nos. 4899, 4898), males, 11 February 1902; Mount Madang, AMNH 672597 (4637), male, AMNH 672598 (4638), female, 23 and 18 March 1902; Kayeli, AMNH 672599–672602, two males, one female, one sex?, March 1897, collected by Doherty; Mount Mada, AMNH 672603, 672604, male, female, August 1898, collected by Dumas; Tifu, AMNH 672605, male, 9 January 1912, collected by Stresemann (1001); northeastern Buru, AMNH 672606, male, November 1897, collected by Doherty.
description: Published as part of Lecroy, Mary, 2014, Type Specimens Of Birds In The American Museum Of Natural History Part 12. Passeriformes: Ploceidae, Sturnidae, Buphagidae, Oriolidae, Dicruridae, Callaeidae, Grallinidae, Corcoracidae, Artamidae, Cracticidae, Ptilonorhynchidae, Cnemophilidae, Paradisaeidae, And Corvidae, pp. 1-165 in Bulletin of the American Museum of Natural History 2014 (393) on page 57, DOI: 10.1206/885.1, http://zenodo.org/record/4629954
Economic modelling of agricultural production: past advances and new challenges
Creators: name: CARPENTIER, Alain
name: GOHIN, Alexandre
name: SCKOKAI, Paolo
name: THOMAS, Alban
name: CARPENTIER, Alain
name: GOHIN, Alexandre
name: SCKOKAI, Paolo
name: THOMAS, Alban
Publisher: name: Unknown
Year: 106
Subjects: subject: Agricultural and Food Policy
subject: agricultural production, land use, investment, dynamics, risk management

description: This paper is a methodological review focusing on the major advances in modelling issues in agricultural production economics that have been made over recent decades. Issues include the role of markets and international trade, structural and dynamic aspects of production, environmental impacts of production decisions and risk issues. We describe the main scientific developments and their implications for policy design and evaluation for each topic. We also provide a short conclusion on emerging issues, data and modelling requirements and perspectives for future research.
Additional file 3 of Identification of potential novel biomarkers to differentiate malignant thyroid nodules with cytological indeterminate
Creators: name: Dandan Wu
name: Shudong Hu
name: Yongzhong Hou
name: Yingying He
name: Shubai Liu
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Figure S3. Heatmap plot of genes network. The heatmap represents the Topological Overlap Matrix (TOM) among all Genes used for analysis. Light color represents low overlap and progressively darker red color represents higher overlap. Blocks of darker colors along the diagonal are the modules. The gene dendrogram and module assignment are also shown along the left side and the top.
A New Measurement of the Weak Mixing Angle
Creators: name: Woods, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The E158 experiment at SLAC has made the first measurement of parity violation in electron-electron (Moller) scattering. We report a preliminary result using 50% of the accumulated data sample for the right-left parity-violating cross-section asymmetry (APV) in the elastic scattering of 45 and 48 GeV polarized electron beams with unpolarized electrons in a liquid hydrogen target. We find APV = (-160 +- 21 (stat.) +- 17 (syst.)) parts per billion, with a significance of 6.3sigma for observing parity violation. In the context of the Standard Model, this yields a measurement of the weak mixing angle, sin^2(thetaW-MSBAR)(Q^2 = 0.026 GeV^2) = 0.2379 +- 0.0016 (stat.) +- 0.0013 (syst.). We also present preliminary results for the first observation of a single-spin transverse asymmetry in Moller scattering.
description: 32 pages, 27 figures. Presented at the 31st SLAC Summer Institute on Particle Physics: Cosmic Connections to Particle Physics (SSI 2003), July 28 - August 8, 2003; Menlo Park, CA. Revised May 8, 2004 to reflect update in theoretical calculation by Zykunov (Ref. 32) for brem correction needed to extract weak mixing angle from measured asymmetry. Also took opportunity to included published references for References 16, 17, 18
Target spiking patterns enable efficient and biologically plausible learning for complex temporal tasks
Creators: name: Muratore, Paolo
name: Capone, Cristiano
name: Paolucci, Pier Stanislao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Recurrent spiking neural networks (RSNN) in the human brain learn to perform a wide range of perceptual, cognitive and motor tasks very efficiently in terms of energy consumption and requires very few examples. This motivates the search for biologically inspired learning rules for RSNNs to improve our understanding of brain computation and the efficiency of artificial intelligence. Several spiking models and learning rules have been proposed, but it remains a challenge to design RSNNs whose learning relies on biologically plausible mechanisms and are capable of solving complex temporal tasks. In this paper, we derive a learning rule, local to the synapse, from a simple mathematical principle, the maximization of the likelihood for the network to solve a specific task. We propose a novel target-based learning scheme in which the learning rule derived from likelihood maximization is used to mimic a specific spiking pattern that encodes the solution to complex temporal tasks. This method makes the learning extremely rapid and precise, outperforming state of the art algorithms for RSNNs. We demonstrate the capacity of our model to tackle several problems like learning multidimensional trajectories and solving the classical temporal XOR benchmark. Finally, we show that an online approximation of the gradient ascent, in addition to guaranteeing complete locality in time and space, allows learning after very few presentations of the target output. Our model can be applied to different types of biological neurons. The analytically derived plasticity learning rule is specific to each neuron model and can produce a theoretical prediction for experimental validation.
description: 22 pages, 5 figures. original research
Role of Ryanodine Type 2 Receptors in Elementary Ca 2+ Signaling in Arteries and Vascular Adaptive Responses
Creators: name: Kaßmann, Mario
name: Szijártó, István András
name: García‐Prieto, Concha F.
name: Fan, Gang
name: Schleifenbaum, Johanna
name: Anistan, Yoland‐Marie
name: Tabeling, Christoph
name: Shi, Yu
name: Noble, Ferdinand Le
name: Witzenrath, Martin
name: Huang, Yu
name: Markó, Lajos
name: Nelson, Mark T.
name: Gollasch, Maik
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2019
Subjects: subject: BKCa channel
subject: blood pressure
subject: Ca(2+)sparks
subject: hypoxia
subject: isoforms
subject: pulmonary hypertension
subject: ryanodine receptors
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Background: Hypertension is the major risk factor for cardiovascular disease, the most common cause of death worldwide. Resistance arteries are capable of adapting their diameter independently in response to pressure and flow-associated shear stress. Ryanodine receptors (RyRs) are major Ca2+-release channels in the sarcoplasmic reticulum membrane of myocytes that contribute to the regulation of contractility. Vascular smooth muscle cells exhibit 3 different RyR isoforms (RyR1, RyR2, and RyR3), but the impact of individual RyR isoforms on adaptive vascular responses is largely unknown. Herein, we generated tamoxifen-inducible smooth muscle cell-specific RyR2-deficient mice and tested the hypothesis that vascular smooth muscle cell RyR2s play a specific role in elementary Ca2+ signaling and adaptive vascular responses to vascular pressure and/or flow. Methods and Results: Targeted deletion of the Ryr2 gene resulted in a complete loss of sarcoplasmic reticulum-mediated Ca2+-release events and associated Ca2+-activated, large-conductance K+ channel currents in peripheral arteries, leading to increased myogenic tone and systemic blood pressure. In the absence of RyR2, the pulmonary artery pressure response to sustained hypoxia was enhanced, but flow-dependent effects, including blood flow recovery in ischemic hind limbs, were unaffected. Conclusions: Our results establish that RyR2-mediated Ca2+-release events in VSCM s specifically regulate myogenic tone (systemic circulation) and arterial adaptation in response to changes in pressure (hypoxic lung model), but not flow. They further suggest that vascular smooth muscle cell-expressed RyR2 deserves scrutiny as a therapeutic target for the treatment of vascular responses in hypertension and chronic vascular diseases.
Interactions between agricultural economics and environmental and resource economics in European research: Insights from the theory of non-renewable resources
Creators: name: BONTEMS, Philippe
name: MARTINET, Vincent
name: ROTILLON, Gilles
name: WITHAGEN, Cees
name: BONTEMS, Philippe
name: MARTINET, Vincent
name: ROTILLON, Gilles
name: WITHAGEN, Cees
Publisher: name: Unknown
Year: 106
Subjects: subject: Environmental Economics and Policy
subject: agricultural economics, environmental and resource economics, exhaustible resources, growth
subject: sustainable development, green paradox, environmental policies

description: Agricultural Economics and Environmental and Resource Economics are two fields which cross-fertilized each other. These interactions are expected to grow in the near future, as the sustainability of agriculture is challenged by the depletion of natural resources. In this article, we focus on three topics in natural resource economics: the resource curse, the sustainable development, and the green paradox. Insights from these topics are then used to discuss the future challenges to be addressed in agricultural economics. The literature on the resource curse examines the links between resource rent and economic development, and emphasizes that resource richness may jeopardize economic growth. The recent boom in agricultural commodity prices may lock developing countries in a poverty trap if the rent from agricultural products exports is not properly reinvested. The economics literature on sustainable development emphasizes that defining sustainability is a difficult task, and that there is not a unanimous sustainability criterion to be applied to agriculture. Here again, the question of capital depreciation and investment for future generations is central and calls for the valuation of the capital assets agriculture relies on. The literature on the green paradox questions the effectiveness of well-intended environmental policies and their possible counter-productive effects. Improperly defined policies, such as biofuel subsidies and mandate, or land use constraints aiming at preserving biodiversity, may result in more rapid resource degradation.