cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Statistics of the Chemical Composition of Solar Analog Stars and Links to Planet Formation
Creators: name: Nibauer, Jacob
name: Baxter, Eric J.
name: Jain, Bhuvnesh
name: van Saders, Jennifer L.
name: Beaton, Rachael L.
name: Teske, Johanna K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Sun has been found to be depleted in refractory (rock-forming) elements relative to nearby solar analogs, suggesting a potential indicator of planet formation. Given the small amplitude of the depletion, previous analyses have primarily relied on high signal-to-noise stellar spectra and a strictly differential approach to determine elemental abundances. We present an alternative, likelihood-based approach that can be applied to much larger samples of stars with lower precision abundance determinations. We utilize measurements of about 1700 solar analogs from the Apache Point Observatory Galactic Evolution Experiment (APOGEE-2) and the stellar parameter and chemical abundance pipeline (ASPCAP DR16). By developing a hierarchical mixture model for the data, we place constraints on the statistical properties of the elemental abundances, including correlations with condensation temperature and the fraction of stars with refractory element depletions. We find evidence for two distinct populations: a depleted population of stars that makes up the majority of solar analogs including the Sun, and a not-depleted population that makes up between 10-30% of our sample. We find correlations with condensation temperature generally in agreement with higher precision surveys of a smaller sample of stars. Such trends, if robustly linked to the formation of planetary systems, provide a means to connect stellar chemical abundance patterns to planetary systems over large samples of Milky Way stars.
description: Accepted for publication in ApJ. 23 Pages, 13 Figures. Comments welcome
Compatibility, embedding and regularization of non-local random walks on graphs
Creators: name: Bianchi, Davide
name: Donatelli, Marco
name: Durastante, Fabio
name: Mazza, Mariarosa
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 05C81, 05C82, 05C90, 35R11, 60G22

description: Several variants of the graph Laplacian have been introduced to model non-local diffusion processes, which allow a random walker to {\textquotedblleft jump\textquotedblright} to non-neighborhood nodes, most notably the transformed path graph Laplacians and the fractional graph Laplacian. From a rigorous point of view, this new dynamics is made possible by having replaced the original graph $G$ with a weighted complete graph $G'$ on the same node-set, that depends on $G$ and wherein the presence of new edges allows a direct passage between nodes that were not neighbors in $G$. We show that, in general, the graph $G'$ is not compatible with the dynamics characterizing the original model graph $G$: the random walks on $G'$ subjected to move on the edges of $G$ are not stochastically equivalent, in the wide sense, to the random walks on $G$. From a purely analytical point of view, the incompatibility of $G'$ with $G$ means that the normalized graph $\hat{G}$ can not be embedded into the normalized graph $\hat{G}'$. Eventually, we provide a regularization method to guarantee such compatibility and preserving at the same time all the nice properties granted by $G'$.
Long-Distance Superexchange between Semiconductor Quantum-Dot Electron Spins
Creators: name: Qiao, Haifeng
name: Kandel, Yadav P.
name: Fallahi, Saeed
name: Gardner, Geoffrey C.
name: Manfra, Michael J.
name: Hu, Xuedong
name: Nichol, John M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Because of their long coherence times and potential for scalability, semiconductor quantum-dot spin qubits hold great promise for quantum information processing. However, maintaining high connectivity between quantum-dot spin qubits, which favor linear arrays with nearest neighbor coupling, presents a challenge for large-scale quantum computing. In this work, we present evidence for long-distance spin-chain-mediated superexchange coupling between electron spin qubits in semiconductor quantum dots. We weakly couple two electron spins to the ends of a two-site spin chain. Depending on the spin state of the chain, we observe oscillations between the distant end spins. We resolve the dynamics of both the end spins and the chain itself, and our measurements agree with simulations. Superexchange is a promising technique to create long-distance coupling between quantum-dot spin qubits.
description: 6+9 pages, 4+7 figures
A climatic thermostat making Earth habitable
Creators: name: Ditlevsen, Peter D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: The mean surface temperature on Earth and other planets with atmospheres is determined by the radiative balance between the non-reflected incoming solar radiation and the outgoing long-wave black-body radiation from the atmosphere. The surface temperature is higher than the black-body temperature due to the greenhouse warming. Balancing the ice-albedo cooling and the greenhouse warming gives rise to two stable climate states. A cold climate state with a completelyice-covered planet, called Snowball Earth, and a warm state similar to our present climate where greenhouse warming prevents the total glacition. The warm state has dominated Earth in most of its geological history despite a 30 % fainter young Sun. The warming could have been controlled by a greenhouse thermostat operating by temperature control of the weathering process depleting the atmosphere from $CO_2$. This temperature control has permitted life to evolve as early as the end of the heavy bombartment 4 billion years ago.
description: 4 figures, Proceedings, NORDITA conf. Astrobiology 2004
The Spacetime Picture in Quantum Gravity
Creators: name: Ascárate, Alejandro
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose an approach which, by combining insights from Loop Quantum Gravity (LQG), Topos theory, Non-commutative Geometry à la Connes, and spacetime relationalism, provides fertile ground for the search of an adequate spacetime picture in Quantum Gravity. With this approach, we obtain a novel way of deducing the quantization of the possible values for the area of a surface. One gets the same area values than those from the area operator in standard LQG, but our approach makes a further prediction: some smaller values and sub-divisions are also allowed. In addition, the area arises as a noncommutative distance between two noncommutative points, and thus they should be interpreted as irreducible string-like objects at the physical level (where the area interpretation for the noncommutative distance holds).
description: 20 pages, accepted for publication in Class. Quantum Grav
SIMBIO-SYS delta NECP Interchannel Test Report
Creators: name: ZUSI, MICHELE
name: SIMIONI, EMANUELE
name: DELLA CORTE, VINCENZO
name: CICCHETTI, ANDREA
name: POLITI, ROMOLO
name: CAPRIA, MARIA TERESA
name: CAPACCIONI, FABRIZIO
name: Doressoundiram, Alain
name: PALUMBO, PASQUALE
name: Vincendon, Mathieu
name: CREMONESE, Gabriele
Publisher: name: IAPS Roma
Year: 2021

description: Alla mia meravigliosa famiglia
description: This document contains the results and the discussion on the interchannel tests performed during the delta-Near Earth Commissioning Phase (dNECP) for the Spectrometers and Imagers for MPO BepiColombo Integrated Observatory SYStem (SIMBIO-SYS). The dNECP was requested by the SIMBIO-SYS team to verify the behaviour of the instrument during the execution of the NECP tests. In particular, SIMBIO-SYS repeated the Interchannel test limiting to the “Orbit Test” whose results in NECP did not confirm the correct operation of the instrument.
Bioeconomic meta-modelling of Indonesian agroforests as carbon sinks
Creators: name: Wise, Russell M.
name: Cacho, Oscar J.
name: Wise, Russell M.
name: Cacho, Oscar J.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Environmental Economics and Policy
subject: Resource /Energy Economics and Policy
subject: bio-economic meta-modelling
subject: Indonesia
subject: agroforestry
subject: carbon credits
subject: dynamic programming

description: In many areas of developing countries, economic and institutional factors often combine to give farmers incentives to clear forests and repeatedly plant food crops without sufficiently replenishing the soils. These activities lead to large-scale land degradation and contribute to global warming through the release of greenhouse gases into the atmosphere. We investigate whether agroforestry systems might alleviate these trends when carbon-credit payments are available under the Clean Development Mechanism of the Kyoto Protocol. A meta-modelling framework is adopted, comprising an econometric-production model of a smallholding in Sumatra. The model is used within a dynamic-programming algorithm to determine optimal combinations of tree/crop area, tree-rotation length, and firewood harvest. Results show the influence of soil-carbon stocks and discount rates on optimal strategies and reveal interesting implications for joint management of agriculture and carbon.
Progettazione e realizzazione di due unità RADAR modulari per il rilevamento di Aeromobili a Pilotaggio Remoto (APR) nell’ambito del progetto cluster Top-Down RADARDRONE.
Creators: name: MAXIA, PAOLO
name: PISANU, Tonino
name: MARONGIU, Pasqualino
name: ORTU, Pierluigi
name: GAUDIOMONTE, Francesco
name: Casula, Andrea
name: MONTISCI, GIORGIO
name: VALENTE, Giuseppe
name: Ricci, Fabrizio
Publisher: name: O.A. Cagliari
Year: 2021

description: Lo scopo di questo rapporto interno è quello di descrivere la progettazione e la realizzazione di due prototipi di unità radar volti al rilevamento degli APR (Aeromobili a Pilotaggio Remoto), realizzati nell’ambito del progetto cluster top-down RADARDRONE e la successiva attività sperimentale condotta. RADARDRONE è la denominazione di un progetto cluster top-down che mette a sistema le competenze ed esperienze nel campo della ricerca tecnologica possedute dall’OAC (Osservatorio Astronomico di Cagliari), dal DIEE (Dipartimento di Ingegneria Elettrica ed Elettronica) dell’Università degli Studi di Cagliari e dalla compagine di aziende ed organizzazioni altamente innovative facenti parte del cluster. L’obiettivo principale del progetto è lo sviluppo di piccoli RADAR modulari, facilmente installabili, per il monitoraggio e la sicurezza delle aree critiche (per esempio aeroporti, porti, stadi di calcio, zone dove si svolgono grandi assembramenti di persone) o obiettivi sensibili al fine di fronteggiare eventuali intrusioni non autorizzate.
Biophysical Modelling and Performance Measurement
Creators: name: Graham, Mary
name: Graham, Mary
Publisher: name: Unknown
Year: 2008
Subjects: Crop Production/Industries
Environmental Economics and Policy
Livestock Production/Industries

description: Agricultural production, by its nature, impacts both positively and negatively on the environment. Impacts can be point source or diffuse; however all should be considered in performance measurement. To estimate potential environmental impacts from the use of nitrogen fertilizer, a biophysical model of dairy grazing systems, DairyMod, is used to simulate individual farming practices and determine the likely extent of leaching and run-off from each farm. Although not the only environmental impacts of farming, leaching and run-off are two variables that can be measured and combined with other marketed inputs to determine farm performance.
On The Global Quotient Structure of The Space of Twisted Stable Maps to a Quotient Stack
Creators: name: Abramovich, Dan
name: Graber, Tom
name: Olsson, Martin
name: Tseng, Hsian-Hua
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Let $\mathcal{X}$ be a tame proper Deligne-Mumford stack of the form $[M/G]$ where $M$ is a scheme and $G$ is an algebraic group. We prove that the stack $\mathcal{K}_{g,n}(\mathcal{X},d)$ of twisted stable maps is a quotient stack and can be embedded into a smooth Deligne-Mumford stack. When $G$ is finite, we give a more precise construction of $\mathcal{K}_{g,n}(\mathcal{X},d)$ using Hilbert schemes and admissible $G$-covers.
description: Mistakes and ambiguities corrected, to appear in Journal of Algebraic Geometry
A Parameterized Variable Dark Energy Model: Structure Formation and Observational Constraints
Creators: name: Bidgoli, Sepehr Arbabi
name: Movahed, M. Sadegh
name: Rahvar, Sohrab
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we investigate a simple parameterization scheme of the quintessence model given by Wetterich (2004). The crucial parameter of this model is the bending parameter $b$, which is related to the amount of dark energy in the early universe. Using the linear perturbation and the spherical infall approximations, we investigate the evolution of matter density perturbations in the variable dark energy model, and obtain an analytical expression for the growth index $f$. We show that increasing $b$ leads to less growth of the density contrast $δ$, and also decreases the growth index. Giving a fitting formula for the growth index at the present time we verify that the approximation relation $f\simeqΩ_m^α$ also holds in this model. To compare predictions of the model with observations, we use the Supernovae type Ia (SNIa) Gold Sample and the parameters of the large scale structure determined by the 2-degree Field Galaxy Redshift Survey (2dFGRS). The best fit values for the model parameters by marginalizing on the remained ones, are $Ω_m=0.21_{-0.06}^{+0.07}$, $w_0=-2.05_{-2.05}^{+0.65}$ and $b=4.05^{+7.05}_{-2.25}$ at $1σ$ confidence level. As a final test we calculate the age of universe for different choices of the free parameters in this model and compare it with the age of old stars and some high redshift objects. Then we show that the predictions of this variable dark energy model are consistent with the age observation of old star and can solve the "age crisis" problem.
description: 18 pages, 10 figures, accepted in Int. J. Mod. Phys. D
Supply Chains and Rural Development in the Asia Pacific Region
Creators: name: Armbruster, Walter J.
name: Coyle, William T.
name: Armbruster, Walter J.
name: Coyle, William T.
Publisher: name: Unknown
Year: 2008
Subjects: Community/Rural/Urban Development

description: Rapid income growth and urbanization are having profound impacts on the food system, food producers and rural areas in the developing Asia Pacific economies. Meeting the challenge of rural development will depend on better integrating rural areas with fast-growing urban areas where the composition of food demand is changing and the logistics of supply are growing more complex. Possible government options include investment in transportation infrastructure—roads, railroads and waterway—and providing rural communities and small-scale producers the tools they need to better adapt to the rapid spread of modern supermarkets and their supply chains.
Toric complexes and Artin kernels
Creators: name: Papadima, Stefan
name: Suciu, Alexander I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Topology (math.AT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F36, 57M07 (Primary); 55N25, 55P62 (Secondary)

description: A simplicial complex L on n vertices determines a subcomplex T_L of the n-torus, with fundamental group the right-angled Artin group G_L. Given an epimorphism χ\colon G_L\to \Z, let T_L^χbe the corresponding cover, with fundamental group the Artin kernel N_χ. We compute the cohomology jumping loci of the toric complex T_L, as well as the homology groups of T_L^χwith coefficients in a field \k, viewed as modules over the group algebra \k\Z. We give combinatorial conditions for H_{\le r}(T_L^χ;\k) to have trivial \Z-action, allowing us to compute the truncated cohomology ring, H^{\le r}(T_L^χ;\k). We also determine several Lie algebras associated to Artin kernels, under certain triviality assumptions on the monodromy \Z-action, and establish the 1-formality of these (not necessarily finitely presentable) groups.
description: 34 pages
title: A new biarticular actuator design facilitates control of leg function in BioBiped3
Creators: name: Sharbafi, Maziar Ahmad
name: Rode, Christian
name: Kurowski, Stefan
name: Scholz, Dorian
name: Möckel, Rico
name: Radkhah, Katayon
name: Zhao, Guoping
name: Rashty, Aida Mohammadinejad
name: Stryk, Oskar von
name: Seyfarth, André
Publisher: name: IOP Publishing
Year: 2024

description: Bioinspired legged locomotion comprises different aspects, such as (i) benefiting from reduced complexity control approaches as observed in humans/animals, (ii) combining embodiment with the controllers and (iii) reflecting neural control mechanisms. One of the most important lessons learned from nature is the significant role of compliance in simplifying control, enhancing energy efficiency and robustness against perturbations for legged locomotion. In this research, we investigate how body morphology in combination with actuator design may facilitate motor control of leg function. Inspired by the human leg muscular system, we show that biarticular muscles have a key role in balancing the upper body, joint coordination and swing leg control. Appropriate adjustment of biarticular spring rest length and stiffness can simplify the control and also reduce energy consumption. In order to test these findings, the BioBiped3 robot was developed as a new version of BioBiped series of biologically inspired, compliant musculoskeletal robots. In this robot, three-segmented legs actuated by mono- and biarticular series elastic actuators mimic the nine major human leg muscle groups. With the new biarticular actuators in BioBiped3, novel simplified control concepts for postural balance and for joint coordination in rebounding movements (drop jumps) were demonstrated and approved.
A simulation study to explore inference about global Moran's I with random spatial indexes
Creators: name: Westerholt, René
Publisher: name: TU Dortmund
Year: 2022
Subjects: subject: 710

description: Inference procedures for spatial autocorrelation statistics assume that the underlying configurations of spatial units are fixed. However, sometimes this assumption can be disadvantageous, for example, when analyzing social media posts or moving objects. This article examines for the case of point geometries how a change from fixed to random spatial indexes affects inferences about global Moran's I, a popular spatial autocorrelation measure. Homogeneous and inhomogeneous Matérn and Thomas cluster processes are studied and for each of these processes, 10,000 random point patterns are simulated for investigating three aspects that are key in an inferential context: the null distributions of I when the underlying geometries are varied; the effect of the latter on critical values used to reject null hypotheses; and how the presence of point processes affects the statistical power of Moran's I. The results show that point processes affect all three characteristics. Inferences about spatial structure in relevant application contexts may therefore be different from conventional inferences when this additional source of randomness is taken into account.
description: Geographical analysis;55(4)
Irreversibility time scale
Creators: name: Gallavotti, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Entropy creation rate is introduced for a system interacting with thermostats ({\it i.e.}, in the usual language, for a system subject to internal conservative forces interacting with ``external'' thermostats via conservative forces) and a fluctuation theorem for it is proved. As an application a time scale is introduced, to be interpreted as the time over which irreversibility becomes manifest in a process leading from an initial to a final stationary state of a mechanical system in a general nonequilibrium context. The time scale is evaluated in a few examples, including the classical Joule-Thompson process (gas expansion in a vacuum). The new version (n.2) contains several comments on references pointed out to me after posting the version n.1.
description: 6 pages 1 figure
Dynamics in Inter-Firm Collaboration: The Impact of Alliance Capabilities on Performance
Creators: name: Ziggers, Gerrit Willem
name: Den Ouden, Brian
name: Ziggers, Gerrit Willem
name: Den Ouden, Brian
Publisher: name: Unknown
Year: 2007
Subjects: subject: Industrial Organization
subject: alliance capability
subject: relational quality
subject: alliance management
subject: alliance performance
subject: non-equity alliances
subject: Resource Based View

description: In this study we question the direct relationship between alliance capability and alliance performance. We contend that this relationship is mediated through post-formation factors such as alliance management and relational quality. Drawing from the Resource Based View a model is presented that explicates these indirect relationships. Partial least squares analysis was used to test three hypotheses, using a sample of Dutch alliance managers responsible for non-equity alliances in agribusiness and the food industry. Our empirical findings affirm the hypothesized indirect relationships between alliance capabilities and alliance performance.
Transcription of story about Verdena meeting Otis
Creators: name: Parker, Verdena
name: Chase, Sara
name: Lee-Wynant, Tyler
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: hup

description: Audio file VP-150816-08: transcribing story about how Verdena met Otis, file VP-011011-10, from start of file.
Fine structure of the 0.7 MeV resonance in the 230Th neutron--induced cross section
Creators: name: Mirea, M.
name: Tassan-Got
name: Stephan, C.
name: Bacri, C. O.
name: Bobulescu, R. C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The fine structure of the 0.7 MeV resonance in the 230Th neutron-induced cross section is investigated within the hybrid model. A very good agreement with experimental data is obtained. It is suggested that fine structure of the cross section quantify the changes of the intrinsic states of the nucleus during the disintegration process.
description: 7 pages, 5 figures
Determinants of the demand for regular farm labour in South Africa, 1960-2002
Creators: name: Sparrow, G.N.
name: Ortmann, Gerald F.
name: Lyne, Michael C.
name: Darroch, Mark A.G.
name: Sparrow, G.N.
name: Ortmann, Gerald F.
name: Lyne, Michael C.
name: Darroch, Mark A.G.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Farm Management
subject: Labor and Human Capital
subject: Regular farm labour
subject: SA agriculture
subject: price (wage) elasticities of demand

description: This paper estimates long-run price (wage) elasticities of demand for regular farm labour in South Africa using both Ordinary Least Squares (OLS) regression and a Two-stage Least Squares (2SLS) simultaneous-equation model for the period 1960-2002. Both models include a piecewise interactive slope dummy variable with 1991 as the threshold year to reflect South African (SA) commercial farmers’ expectations that farm labour costs would increase as new labour legislation was introduced from the early 1990s onwards. The long-run price (wage) elasticity of demand for regular farm labour in South Africa during 1960-1990 was estimated as -0.25 for OLS and -0.23 for 2SLS regression, respectively. For the period 1991-2002, this elasticity estimate rose to -1.32 and -1.34 for OLS and 2SLS regression, respectively. These results suggest that a marked structural decline in the demand for regular labour has occurred since 1991 that raises questions about the appropriateness of labour laws and minimum wage legislation that have increased the cost of regular farm labour in South Africa.
Application of superstatistics to atmospheric turbulence
Creators: name: Rizzo, Salvo
name: Rapisarda, Andrea
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Astrophysics (astro-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We successfully apply the recent developed superstatistics theory to a temporal series of turbulent wind measurements recorded by the anemometers of Florence airport. Within this approach we can reproduce very well the fluctuations and the pdfs of wind velocity returns and differences.
description: 7 pages, 4 figures. To be published in the proceedings of the 31st Workshop of the International School of Solid State Physics Complexity, Metastability And Nonextensivity Erice (Sicily) 20-26 July 2004, Eds. C. Beck, G. Benedek, A. Rapisarda and C. Tsallis, World Scientific (2005)
Recommendations for higher education and research institution associations and umbrella organisations towards ending gender-based violence
Creators: name: Mergaert, Lut
name: Wuiame, Nathalie
name: Madesi, Vasia
name: Polykarpou, Panagiota
Publisher: name: Zenodo
Year: 2023
Subjects: Gender based violence
RPOs
Umbrella organisations
institutional policy
higher education

description: This factsheet addresses associations and umbrella organisations at national or European level which unite, represent and support higher education and research institutions. It provides recommendations on their role towards ending gender-based violence. These recommendations are based on the findings from the EU-funded UniSAFE project. Importantly, gender-based violence is one of the five recommended areas to be covered by Gender Equality Plans required as an eligibility criterion in Horizon Europe.

UniSAFE acknowledges that working towards ending gender-based violence is not a minor challenge and not all actors are, at the present moment, geared up for the task. It is, therefore, suggested that clear priorities are set, even if this means that not all recommendations can be taken up at once.

Readers of this factsheet may want to consult UniSAFE’s toolkit section on concepts and meanings. Background information about the root causes of gender-based violence in research and academia are laid out in the White Paper for Policymakers and Institutional Managers, together with a presentation of the 7P model (Prevalence, Prevention, Protection, Prosecution, Provision of services, Partnerships, Policy).
Overview and Evaluation of Sound Event Localization and Detection in DCASE 2019
Creators: name: Politis, Archontis
name: Mesaros, Annamaria
name: Adavanne, Sharath
name: Heittola, Toni
name: Virtanen, Tuomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Sound event localization and detection is a novel area of research that emerged from the combined interest of analyzing the acoustic scene in terms of the spatial and temporal activity of sounds of interest. This paper presents an overview of the first international evaluation on sound event localization and detection, organized as a task of the DCASE 2019 Challenge. A large-scale realistic dataset of spatialized sound events was generated for the challenge, to be used for training of learning-based approaches, and for evaluation of the submissions in an unlabeled subset. The overview presents in detail how the systems were evaluated and ranked and the characteristics of the best-performing systems. Common strategies in terms of input features, model architectures, training approaches, exploitation of prior knowledge, and data augmentation are discussed. Since ranking in the challenge was based on individually evaluating localization and event classification performance, part of the overview focuses on presenting metrics for the joint measurement of the two, together with a reevaluation of submissions using these new metrics. The new analysis reveals submissions that performed better on the joint task of detecting the correct type of event close to its original location than some of the submissions that were ranked higher in the challenge. Consequently, ranking of submissions which performed strongly when evaluated separately on detection or localization, but not jointly on both, was affected negatively.
กำเนิดจักรวาลในคัมภีร์วิษณุปุราณะ: การผนวกรวมความเชื่อเพื่อเพิ่มความนับถือศรัทธาในพระวิษณุ
Creators: name: สุภาพร พลายเล็ก
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2015
Subjects: -

description: วรรณวิทัศน์, 15, พฤศจิกายน, 1-29
Recommendations for higher education and research institution associations and umbrella organisations towards ending gender-based violence
Creators: name: UniSAFE Project ( 2023)
Publisher: name: Zenodo
Year: 2023
Subjects: Gender based violence
RPOs
Umbrella organisations
institutional policy
higher education

description: This factsheet addresses associations and umbrella organisations at national or European level which unite, represent and support higher education and research institutions. It provides recommendations on their role towards ending gender-based violence. These recommendations are based on the findings from the EU-funded UniSAFE project. Importantly, gender-based violence is one of the five recommended areas to be covered by Gender Equality Plans required as an eligibility criterion in Horizon Europe. UniSAFE acknowledges that working towards ending gender-based violence is not a minor challenge and not all actors are, at the present moment, geared up for the task. It is, therefore, suggested that clear priorities are set, even if this means that not all recommendations can be taken up at once. Readers of this factsheet may want to consult UniSAFE’s toolkit section on concepts and meanings. Background information about the root causes of gender-based violence in research and academia are laid out in the White Paper for Policymakers and Institutional Managers, together with a presentation of the 7P model (Prevalence, Prevention, Protection, Prosecution, Provision of services, Partnerships, Policy).
Establishing the Presence of a Risk Premium in the Cocoa Futures Market: An Econometric Analysis
Creators: name: Armah, Stephen E.
name: Armah, Stephen E.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Marketing
subject: FOS: Economics and business
subject: Cocoa
subject: Futures markets
subject: time-varying risk premium
subject: error-correction model

description: Previous attempts at identifying and estimating a time-varying risk premium in the cocoa futures market yielded conflicting results. Using a longer series that includes the most recent cash and futures data, the existence of a time-varying risk premium in the cocoa futures market is re-investigated using LM ARCH tests and a Quadratic ARCH in Mean Error Correction Model. In contrast to available research the time series properties of the data are carefully accounted for by employing the most recent econometric techniques in testing for the presence of a risk premium. No evidence is found in support of a positive time-varying [or constant] risk premium in the cocoa futures market at conventional significance levels. The result suggests that cocoa producing countries have one less cost to consider in deciding whether or not to hedge cocoa price risk using futures contracts.
Impact of Helical Electromagnetic Fields on the Axion Window
Creators: name: Kobayashi, Takeshi
name: Jain, Rajeev Kumar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Primordial electromagnetic fields can strongly affect the cosmic evolution of axions, and vice versa. We show that if helical electromagnetic fields are coherently produced in the early universe, their remnants source a field velocity to the coupled axions and enhance the relic abundance of axion dark matter. We discuss the implications for the QCD axion and axion-like particles that are coupled to the SM or hidden gauge groups. For a QCD axion coupled to hidden photons, we find that the conventional window for the axion decay constant $10^{8}\, \mathrm{GeV} \lesssim f \lesssim 10^{12}\, \mathrm{GeV}$ can be completely closed due to overproduction of axion dark matter by helical electromagnetic fields as little as $α\, ΔN_{\mathrm{eff}} \gtrsim 10^{-12}$, where $α$ is the gauge coupling and $ΔN_{\mathrm{eff}}$ is the effective extra relativistic degrees of freedom of the hidden photons.
description: 24 pages, 3 figures, v2: published in JCAP
ทรรศนะของนักวรรณคดีสันสกฤตว่าด้วยตัวละครปรปักษ์
Creators: name: นาวิน วรรณเวช
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2015
Subjects: -

description: วรรณวิทัศน์, 15, พฤศจิกายน, 30-51
$κ$-generalization of Gauss' law of error
Creators: name: Wada, T.
name: Suyari, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Based on the $κ$-deformed functions ($κ$-exponential and $κ$-logarithm) and associated multiplication operation ($κ$-product) introduced by Kaniadakis (Phys. Rev. E \textbf{66} (2002) 056125), we present another one-parameter generalization of Gauss' law of error. The likelihood function in Gauss' law of error is generalized by means of the $κ$-product. This $κ$-generalized maximum likelihood principle leads to the {\it so-called} $κ$-Gaussian distributions.
description: 9 pages, 1 figure, latex file using elsart.cls style file
Economic Potential of Conservation Farming Annual Winter Forages for the Stocker Cattle Grazing Enterprise
Creators: name: Biermacher, Jon T.
name: Coffey, Chuck
name: Cook, Billy
name: Ford, Devlon
name: Biermacher, Jon T.
name: Coffey, Chuck
name: Cook, Billy
name: Ford, Devlon
Publisher: name: Unknown
Year: 2008
Subjects: Farm Management
Land Economics/Use

description: The objective was to determine the expected net value of a no-till forage production and grazing system. Reduction in fuel and machinery costs offset the costs of herbicide application. The net value of the no-till system is $31 per acre, and is quite sensitive to relative differences in cattle performance.
An exact Lagrangian integral for the Newtonian gravitational field strength
Creators: name: Buchert, Thomas
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: An exact expression for the gravitational field strength in a self-gravitating dust continuum is derived within the Lagrangian picture of continuum mechanics. From the Euler-Newton system a transport equation for the gravitational field strength is formulated and then integrated along trajectories of continuum elements. The resulting integral solves one of the Lagrangian equations of the corresponding Lagrange-Newton system in general. Relations to known exact solutions without symmetry in Newtonian gravity are discussed. The presented integral may be employed to access the non-perturbative regime of structure formation in Newtonian cosmology, and to apply iterative Lagrangian schemes to solve the Lagrange-Newton system.
description: 15 pages, section on applications added; matches published version in Phys.Lett.A
Price Competition with Particle Swarm Optimization: An Agent-Based Artificial Model
Creators: name: Zhang, Tong
name: Brorsen, B. Wade
name: Zhang, Tong
name: Brorsen, B. Wade
Publisher: name: Unknown
Year: 2008
Subjects: subject: Livestock Production/Industries
subject: Research Methods/ Statistical Methods
subject: fed cattle market
subject: agent-based model
subject: particle swarm optimization
subject: oligopsony

description: This study instructs an artificial price competition market to examine the impact of capacity constraints on the behavior of packers. Results show when there are cattle left for the lowest bidder after all other packers finishing their procurement, the capacity constraints make the price lower than the perfect competition level.
Performance of a Large Area Photon Detector For Rare Event Search Applications
Creators: name: CPD Collaboration
name: Fink, C. W.
name: Watkins, S. L.
name: Aramaki, T.
name: Brink, P. L.
name: Camilleri, J.
name: Defay, X.
name: Ganjam, S.
name: Kolomensky, Yu. G.
name: Mahapatra, R.
name: Mirabolfathi, N.
name: Page, W. A.
name: Partridge, R.
name: Platt, M.
name: Pyle, M.
name: Sadoulet, B.
name: Serfass, B.
name: Zuber, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present the design and characterization of a large-area Cryogenic PhotoDetector (CPD) designed for active particle identification in rare event searches, such as neutrinoless double beta decay and dark matter experiments. The detector consists of a $45.6$ $\mathrm{cm}^2$ surface area by 1-mm-thick $10.6$ $\mathrm{g}$ Si wafer. It is instrumented with a distributed network of Quasiparticle-trap-assisted Electrothermal feedback Transition-edge sensors (QETs) with superconducting critical temperature $T_c=41.5$ $\mathrm{mK}$ to measure athermal phonons released from interactions with photons. The detector is characterized and calibrated with a collimated $^{55}$Fe X-ray source incident on the center of the detector. The noise equivalent power is measured to be $1\times 10^{-17}$ $\mathrm{W}/\sqrt{\mathrm{Hz}}$ in a bandwidth of $2.7$ $\mathrm{kHz}$. The baseline energy resolution is measured to be $σ_E = 3.86 \pm 0.04$ $(\mathrm{stat.})^{+0.23}_{-0.00}$ $(\mathrm{syst.})$ $\mathrm{eV}$ (RMS). The detector also has an expected timing resolution of $σ_t = 2.3$ $μ\mathrm{s}$ for $5$ $σ_E$ events.
description: 6 pages, 5 figures
Two new candidate ultra-compact X-ray binaries
Creators: name: Bassa, C. G.
name: Jonker, P. G.
name: Zand, J. J. M. in 't
name: Verbunt, F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the identification of the optical counterparts to the low-mass X-ray binaries 1A 1246-588 and 4U 1812-12. We determine the X-ray position of 1A 1246-588 from ROSAT/PSPC observations and find within the error circle a blue star with V=19.45, B-V=0.22 and R-I=0.22 which we identify as the counterpart. Within the Chandra error circle of 4U 1812-12, a single star is present which appears blue with respect to the stars in the vicinity. It has R=22.15, R-I=1.53. Distance estimates for both systems indicate that the optical counterparts are intrinsically faint, suggesting that they are ultra-compact X-ray binaries. These identifications would increase the number of candidate ultra-compact X-ray binaries from 2 to 4, whereas orbital periods are measured for only 7 systems in the Galactic disk.
description: 5 pages, 3 figures, accepted for publication in A&A
INFLUENCE OF FEED FACTORS ON ON COM PRODUCTIVITY COWS
Creators: name: Syrovatko, K.
Publisher: name: Sciences of Europe
Year: 2021
Subjects: feed structure
corn silage
alfalfa haylage
lactic acid
protein
cow ration
milk yield.

description: The influence of feed volume, their quality and structure of use on milk productivity and reproductive capacity of cows is investigated. During the last three years, the volume of hay harvesting has decreased, the quality of silage and haylage has deteriorated. Total feed costs per 1 average annual cow decreased from 61.0 to 59.3 quintals feed units. Мilk yield for 1 cow decreased by 19.1% with increasing feed costs per 1 quintal of milk by 0.18 quintals of feed units or 21.4%. The average fat content in milk decreased by 0.11%. The insemination index and the yield of calves per 100 cows decreased.
Recommendations for higher education and research institution associations and umbrella organisations towards ending gender-based violence
Creators: name: UniSAFE Project ( 2023)
Publisher: name: Zenodo
Year: 2023
Subjects: Gender based violence
RPOs
Umbrella organisations
institutional policy
higher education

description: This factsheet provides recommendations on the role of research and higher education institutions towards ending gender-based violence. Recommendations are based on the findings from the EU-funded UniSAFE project. Readers of this factsheet may want to consult UniSAFE’s toolkit section on concepts and meaningss of gender-based violence in research and academia are laid out in the White Paper for Policymakers and Institutional Managers, together with a presentation of the 7P model (Prevalence, Prevention, Protection, Prosecution, Provision of services, Partnerships, Policy).
Mean-field model of interacting quasilocalized excitations in glasses
Creators: name: Rainone, Corrado
name: Urbani, Pierfrancesco
name: Zamponi, Francesco
name: Lerner, Edan
name: Bouchbinder, Eran
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Structural glasses feature quasilocalized excitations whose frequencies $ω$ follow a universal density of states ${\cal D}(ω)\!\sim\!ω^4$. Yet, the underlying physics behind this universality is not fully understood. Here we study a mean-field model of quasilocalized excitations in glasses, viewed as groups of particles embedded inside an elastic medium and described collectively as anharmonic oscillators. The oscillators, whose harmonic stiffness is taken from a rather featureless probability distribution (of upper cutoff $κ_0$) in the absence of interactions, interact among themselves through random couplings (characterized by strength $J$) and with the surrounding elastic medium (an interaction characterized by a constant force $h$). We first show that the model gives rise to a gapless density of states ${\cal D}(ω)\!=\!A_{\rm g}\,ω^4$ for a broad range of model parameters, expressed in terms of the strength of stabilizing anharmonicity, which plays a decisive role in the model. Then -- using scaling theory and numerical simulations -- we provide a complete understanding of the non-universal prefactor $A_{\rm g}(h,J,κ_0)$, of the oscillators' interaction-induced mean square displacement and of an emerging characteristic frequency, all in terms of properly identified dimensionless quantities. In particular, we show that $A_{\rm g}(h,J,κ_0)$ is a nonmonotonic function of $J$ for a fixed $h$, varying predominantly exponentially with $-(κ_0 h^{2/3}\!/J^2)$ in the weak interactions (small $J$) regime -- reminiscent of recent observations in computer glasses -- and predominantly decaying as a power-law for larger $J$, in a regime where $h$ plays no role. We discuss the physical interpretation of the model and its possible relations to available observations in structural glasses, along with delineating some future research directions.
description: Updated manuscript, scaling theory and extensive numerics added (9 pages, 6 figures)
Optimal Design of Weather Bonds
Creators: name: Xu, Wei
name: Odening, Martin
name: Musshoff, Oliver
name: Xu, Wei
name: Odening, Martin
name: Musshoff, Oliver
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural Finance
subject: Risk and Uncertainty
subject: weather risk
subject: weather bonds
subject: reinsurance
subject: securitisation

description: This paper investigates the optimal design of weather bonds for reinsurance purposes. The motivation for this task comes from an empirical study showing that German farmers are not willing to pay the premiums for weather insurance that insurers ask for. Since reinsurance costs constitute a major cost component of insurance premiums, minimizing these costs could decrease the observed gap between the willingness to pay and the willingness to accept the cost of the insurance. Against this background, we put forth the proposal to transfer weather risk directly to the capital market by issuing weather bonds. The structure of the weather bond is optimally designed in a utility maximizing framework that involves farmers, insurers, and capital market investors. The approach is illustrated by an example of securitizing draught risk in crop production in Germany.
description: Replaced with revised version of paper 06/17/08.
USING GRINDED APRICOT KERNEL MATERIAL TO EXTRACT METHYLENE BLUE FROM AQUEOUS SOLUTION
Creators: name: Sverguzova, S.
name: Vinogradenko Yu.
name: Gafarov, R.
name: Bomba, I.
name: Zhabsky, V.
Publisher: name: Sciences of Europe
Year: 2021
Subjects: apricot processing waste
methylene blue
cleaning efficiency
sorption cleaning.

description: The possibility of purifying solutions from the dye using the grinded waste of apricot processing, the peel of apricot kernels, has been investigated. It was found that the maximum purifying efficiency at a AKP concentration of 15 g/dm3 and the duration of the AKP contact with a model solution for 100 minutes is 97.4%.
Elicitation of conversational questions and answers
Creators: name: Parker, Verdena
name: Chase, Sara
name: Lee-Wynant, Tyler
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: hup

description: Audio file VP-150816-06: Elicitation of a few conversational questions and answers ("How old are you?", "How did you sleep?", "How are you?", "How is the weather?" etc.)
Universal Bounds for SU(3) Low Energy Constants
Creators: name: Mateu, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper bounds for L_1, L_2 and L_3 are obtained in Chiral Perturbation Theory with three flavours. At the same time we test the compatibility of this theory with axiomatic principles. Following a recent paper we use dispersion relations to write positivity conditions that translate into bounds for the chiral low energy constants. As a first approach we consider the exact SU(3)_V limit and notice that if a common mass of the order of that of the kaon is adopted for the octet of pseudo-Goldstone bosons the bounds have very large O(p^6) corrections. Once the positivity conditions are adapted to account for different masses, we correct the previous bounds for a physical kaon mass and find that they tighten. We observe an overlap between the experimentally determined region and the first principles forbidden region, in the space of parameters.
description: 6 pages, 1 figure. Two references added. Some minor changes. Published version