cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Chebyshev Inertial Iteration for Accelerating Fixed-Point Iterations
Creators: name: Wadayama, Tadashi
name: Takabe, Satoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: A novel method which is called the Chebyshev inertial iteration for accelerating the convergence speed of fixed-point iterations is presented. The Chebyshev inertial iteration can be regarded as a valiant of the successive over relaxation or Krasnosel'ski\vı-Mann iteration utilizing the inverse of roots of a Chebyshev polynomial as iteration dependent inertial factors. One of the most notable features of the proposed method is that it can be applied to nonlinear fixed-point iterations in addition to linear fixed-point iterations. Linearization around the fixed point is the key for the analysis on the local convergence rate of the proposed method. The proposed method appears effective in particular for accelerating the proximal gradient methods such as ISTA. It is also proved that the proposed method can successfully accelerate almost any fixed-point iterations if all the eigenvalues of the Jacobian at the fixed point are real.
description: 9 pages
Urgleptes gahani Chalumeau 1983
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Urgleptes
Urgleptes gahani

description: 27. Urgleptes gahani Chalumeau, 1983
Type locality — St. Vincent, Leeward side. (BMNH). Distribution — St. Vincent.
 Urgleptes gahani Chalumeau, 1983: 234, figs. 8, 14; Chemsak et al., 1992: 148 (cat.).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Publishing Research from ERC on Open Research Europe
Creators: name: F1000
Publisher: name: Zenodo
Year: 2025

description: Slides from the webinar that took place on Thursday 13th February 2025 to European Research Council grantees.

Did you know that ERC-funded researchers can submit their research outputs to Open Research Europe (ORE), the European Commission’s own Open Access publishing platform for research?

Join us on Thursday 13th February from 11h-12:30h CET for an introductory webinar where the ORE team will present the platform in more detail, explain how to submit your ERC research, and give you the opportunity to ask any questions you may have on potential submissions.

You will also hear from Professor Johann-Mattis List, an ERC grantee who has published and reviewed several papers on Open Research Europe. He will speak about his experiences as an author publishing on the platform.
Solution of Dirac equation in the near horizon geometry of an extreme Kerr black hole
Creators: name: Sakalli, I.
name: Halilsoy, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Dirac equation is solved in the near horizon limit geometry of an extreme Kerr black hole. We decouple equations first as usual, into an axial and angular part. The axial equation turns out to be independent of the mass and is solved exactly. The angular equation reduces, in the massless case, to a confluent Heun equation. In general for nonzero mass, the angular equation is expressible at best, as a set of coupled first order differential equations apt for numerical investigation. The axial potentials corresponding to the associated Schrodinger-type equations and their conserved currents are found. Finally, based on our solution, we verify in a similar way the absence of superradiance for Dirac particles in the near horizon, a result which is well-known within the context of general Kerr background.
description: 20 pages, no figure, to be appeared in Phys.Rev.D
title: An Inquiry Into The Nature Of Analysis.
Creators: name: Brinklow, Anthony
Publisher: name: The Open University
Year: 2000

description: Increases in the complexity and uncertainty of corporate activity indicate that the time is now appropriate to review the analysis process. This proposition forms the central theme of the thesis, i.e. to explore the nature of analysis.

 Initial research concentrated on the field of hard system methods, to provide a theoretical foundation for conducting analysis. However, from observations undertaken as a reflective practitioner it became clear that, even with theoretical advances, hard system methods could only make a marginal contribution to the analysis process. Hard system methods foiled to account for the feet that experts had an uncertain knowledge of the domain on which they were expected to pronounce.

 Contemporary literature from the fields of strategic management and organisational behaviour pose fundamental challenges to the accepted origin and nature of requirements for change. Complexity theory, however, offers a new theoretical foundation to ease the plight of the domain expert, i.e. pattern recognition. However to ensure that patterns reflect the cognitive strategies-and priorities of the domain expert, it is necessary to explore the field of cognitive psychology to appreciate the significance of the metaphors selected to construct patterns. Finally, knowledge management claims that the value of knowledge is under endless assault and argues for the domain expert to be engaged in a virtuous cycle of perpetual knowledge creation. The thesis seeks to integrate these themes to redefine the analysis process based on methodological pluralism. The key to methodological pluralism proved eventually to be the introduction of generic ‘behaviour accentuated’ patterns of analysis at the core of the selected techniques.

 The nature of analysis has changed radically over the last decade and significant research is required to develop themes raised in this thesis. Moreover, further work is required to disseminate the themes to the practitioner community.
Energy and Carbon Considerations of Fine-Tuning BERT
Creators: name: Wang, Xiaorong
name: Na, Clara
name: Strubell, Emma
name: Friedler, Sorelle
name: Luccioni, Sasha
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Despite the popularity of the `pre-train then fine-tune' paradigm in the NLP community, existing work quantifying energy costs and associated carbon emissions has largely focused on language model pre-training. Although a single pre-training run draws substantially more energy than fine-tuning, fine-tuning is performed more frequently by many more individual actors, and thus must be accounted for when considering the energy and carbon footprint of NLP. In order to better characterize the role of fine-tuning in the landscape of energy and carbon emissions in NLP, we perform a careful empirical study of the computational costs of fine-tuning across tasks, datasets, hardware infrastructure and measurement modalities. Our experimental results allow us to place fine-tuning energy and carbon costs into perspective with respect to pre-training and inference, and outline recommendations to NLP researchers and practitioners who wish to improve their fine-tuning energy efficiency.
description: EMNLP 2023 Findings; First two authors contributed equally; 12 pages
Massive donors in interacting binaries: effect of metallicity
Creators: name: Klencki, Jakub
name: Nelemans, Gijs
name: Istrate, Alina G.
name: Pols, Onno
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Metallicity is known to significantly affect the radial expansion of a massive star: the lower the metallicity, the more compact the star, especially during its post-MS evolution. We study this effect in the context of binary evolution. Using the stellar-evolution code MESA, we computed evolutionary tracks of stars at different metallicities, exploring variations of factors known to affect the radial expansion (e.g. semiconvection, overshooting, rotation). We find observational support for an evolution in which already at metallicity $0.2Z_{\odot}$ massive stars remain relatively compact during the Hertzprung-Gap (HG) phase and most of their expansion occurs during core-helium burning (CHeB). Consequently, we show that metallicity has a strong influence on the type of mass transfer evolution in binary systems. At solar metallicity, a case-B mass transfer is initiated shortly after the end of MS, and a giant donor is almost always a rapidly expanding HG star. At lower metallicity, the parameter space for mass transfer from a more evolved CHeB star increases dramatically. This means that envelope stripping and formation of helium stars in low-metallicity environments occurs later in the evolution of the donor, implying a much shorter duration of the Wolf-Rayet phase (even by an order of magnitude) and higher final core masses. This metallicity effect is independent of the impact of metallicity-dependent stellar winds. At very low metallicities, a significant fraction of massive stars in binaries engages in the first episode of mass transfer very late into their evolution, when they already have a well-developed CO core. The remaining lifetime ($< 10^4$ yr) is unlikely to be enough to strip the entire H-rich envelope. We also briefly discuss the extremely small parameter space for mass transfer from massive convective-envelope donors in the context of binary black hole merger formation.
description: 15 pages, 8 figures (+ 4 pages, 4 fig. appendix), to appear in A&A
title: Nonlinear temporal interactions in click-evoked otoacoustic emissions.
Creators: name: Kapadia, Sarosh
Publisher: name: The Open University
Year: 2000

description: Click-evoked otoacoustic emissions (CEOAEs) may be reduced in amplitude by the presentation of “suppressor” clicks that either closely lead or follow the stimulus (“test”) clicks. This “click suppression” represents nonlinear temporal interaction between the test and suppressor clicks and/or the CEOAEs they evoke. Such suppression has not previously been studied in detail and the mechanisms giving rise to it are not understood. In particular, it is unclear whether click suppression may simply reflect the compressive nonlinearity of the CEOAE level function. It is also unclear whether the larger magnitude “rate suppression” observed in CEOAEs measured using streams of clicks at very high rates may be explained by a simple additive accumulation of click suppression.

 The present study addresses these questions by detailed measurement of this suppression phenomenon in 20 normal adult ears, and establishes that:

 1. Maximum suppression is generally obtained for suppressors presented up to 4 ms in advance of test clicks, contrary to expectation.

 2. Suppression by suppressors that lead test clicks does not simply reflect CEOAE level function nonlinearity. It may, instead, arise from disturbance of the generator elements from their resting state prior to generation of the CEOAE.

 3. Suppression by following suppressors behaves markedly differently from that by leading suppressors, and appears more closely related to level function nonlinearity.

 4. Contrary to previous suggestions, suppression for both leading and following suppressors is insensitive to polarities of test and suppressor clicks.

 5. Suppression does not accumulate in a simple, additive manner as has previously been suggested. Consequently, a more complex mechanism underpins the greater magnitude of rate suppression.

 The parametric characterisation of click suppression presented may form the basis of models to explain this little-studied phenomenon. Further studies using tone bursts instead of clicks are recommended to help determine whether single-channel models are appropriate.
Jet-ISM interaction in NGC 1167 / B2 0258+35, A LINER with an AGN past
Creators: name: Fabbiano, G.
name: Paggi, A.
name: Morganti, R.
name: Balokovic, M.
name: Elvis, A.
name: Mukherjee, D.
name: Meenakshi, M.
name: Siemiginowska, A.
name: Murthy, S. M.
name: Oosterloo, T. A.
name: Wagner, A. Y.
name: Bicknell, G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the results of joint Chandra/ACIS - NuSTAR deep observations of NGC 1167, the host galaxy of the young radio jet B2 0258+35. In the ACIS data we detect X-ray emission, extended both along and orthogonal to the jet. At the end of the SE radio jet, we find lower-energy X-ray emission that coincides with a region of CO turbulence and fast outflow motions. This suggests that the hot Interstellar Medium (ISM) may be compressed by the jet and molecular outflow, resulting in more efficient cooling. Hydrodynamic simulations of jet-ISM interaction tailored to NGC 1167 are in agreement with this conclusion and with the overall morphology and spectra of the X-ray emission. The faint hard nuclear source detected with Chandra and the stringent NuSTAR upper limits on the harder X-ray emission show that the active galactic nucleus (AGN) in NGC 1167 is in a very low-accretion state. However, the characteristics of the extended X-ray emission are more consonant to those of luminous Compton Thick AGNs, suggesting that we may be observing the remnants of a past high accretion rate episode, with sustained strong activity lasting ~ 2 x 103 yr. We conclude that NGC1167 is presently a LINER, but was an AGN in the past, given the properties of the extended X-ray emission and their similarity with those of CT AGN extended emission.
description: ApJ, in press
Sword of Wisdom seris (outline) 慧剑系列(提纲)
Creators: name: 吴晨
Publisher: name: Zenodo
Year: 2022
Subjects: Buddhism and science (math, physics, cognitive studies)

description: 顶礼文殊智慧勇识!顶礼麦彭仁波切!顶礼传承大恩上师!慧剑系列取名于麦彭仁波切的《解义慧剑》,是在佛法认知科学概论笔记系列基础上的一个重新整理和创作。目前它还只是一个不完整的提纲而已,写作于2021年的天降月和闰天降月。相比佛法认知科学概论,它更加成熟,也更加体系化,并包含了一些新的深刻的洞见。此文档作为一个历史资料存档。愿一切众生皆得安乐!
description: an outline series
Effective governance and accountability frameworks are required for decision-making on food and nutrition security from the local to the global level
Creators: name: Treyer, Sebastien
name: Achterbosch, Thom
name: Treyer, Sebastien
name: Achterbosch, Thom
Publisher: name: Unknown
Year: 2017
Subjects: Food Consumption/Nutrition/Food Safety

description: The challenge for decision-making on FNS policy and action is to comprehensively as well as effectively address multiple dimensions - agriculture, health, trade, social services, education, environmental protection. We make four recommendations for improved governance at global and national levels 1. FNS governance at national level should adopt a comprehensive approach 2. Coordinate country-level FNS strategies within a (sub-) regional approach. 3. Global multistakeholder platforms should have an accountability framework 4. Strengthen the global governance of FNS
ADEPOS: A Novel Approximate Computing Framework for Anomaly Detection Systems and its Implementation in 65nm CMOS
Creators: name: Bose, Sumon Kumar
name: Kar, Bapi
name: Roy, Mohendra
name: Gopalakrishnan, Pradeep Kumar
name: Lei, Zhang
name: Patil, Aakash
name: Basu, Arindam
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: To overcome the energy and bandwidth limitations of traditional IoT systems, edge computing or information extraction at the sensor node has become popular. However, now it is important to create very low energy information extraction or pattern recognition systems. In this paper, we present an approximate computing method to reduce the computation energy of a specific type of IoT system used for anomaly detection (e.g. in predictive maintenance, epileptic seizure detection, etc). Termed as Anomaly Detection Based Power Savings (ADEPOS), our proposed method uses low precision computing and low complexity neural networks at the beginning when it is easy to distinguish healthy data. However, on the detection of anomalies, the complexity of the network and computing precision are adaptively increased for accurate predictions. We show that ensemble approaches are well suited for adaptively changing network size. To validate our proposed scheme, a chip has been fabricated in UMC65nm process that includes an MSP430 microprocessor along with an on-chip switching mode DC-DC converter for dynamic voltage and frequency scaling. Using NASA bearing dataset for machine health monitoring, we show that using ADEPOS we can achieve 8.95X saving of energy along the lifetime without losing any detection accuracy. The energy savings are obtained by reducing the execution time of the neural network on the microprocessor.
description: 14 pages
GRB 080928 afterglow imaging and spectro-polarimetry
Creators: name: Brivio, R.
name: Covino, S.
name: D'Avanzo, P.
name: Wiersema, K.
name: Maund, J. R.
name: Bernardini, M. G.
name: Campana, S.
name: Melandri, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Among the large variety of astrophysical sources that we can observe, gamma-ray bursts (GRBs) are the most energetic of the whole Universe. The definition of a general picture describing the physics behind GRBs has always been a compelling task, but the results obtained so far from observations have revealed a puzzling landscape. The lack of a clear, unique paradigm calls for further observations and additional, independent techniques for this purpose. Polarimetry constitutes a very useful example as it allows us to investigate some features of the source such as the geometry of the emitting region and the magnetic field configuration. To date, only a handful of bursts detected by space telescopes have been accompanied by ground-based spectro-polarimetric follow-up, and therefore such an analysis of more GRBs is of crucial importance in order to increase the sample of bursts with multi-epoch polarisation analysis. In this work, we present the analysis of the GRB 080928 optical afterglow, with observations performed with the ESO-VLT FORS1 instrument. We find that the GRB optical afterglow was not significantly polarised on the first observing night. The polarisation degree ($P$) grew on the following night to a level of $P \sim$ 4.5%, giving evidence of polarised radiation at a 4 $σ$ confidence level. The GRB 080928 light curve is not fully consistent with standard afterglow models, making any comparison with polarimetric models partly inconclusive. The most conservative interpretation is that the GRB emission was characterised by a homogeneous jet and was observed at an angle of 0.6 $< θ_{obs}/θ_{jet} <$ 0.8. Moreover, the non-zero polarisation degree on the second night suggests the presence of a dominant locally ordered magnetic field in the emitting region.
description: 10 pages, 7 figures. Accepted for publication in A&A
การฟื้นฟูปอดในผู้ป่วยกลุ่มอาการหลังโรคโควิด-19
Creators: name: อารีรัตน์ สุพุทธิธาดา
Publisher: name: King Mongkut’s University of Technology Thonburi
Year: 2021
Subjects: Long COVID
Long-haul COVID-19
Post-COVID-19 Syndrome
Self-pulmonary Rehabilitation
Telemedicine

description: KMUTT Research and Development Journal, 44, 4, 521-545
Urgleptes guadeloupensis
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Urgleptes
Urgleptes guadeloupensis

description: 28. Urgleptes guadeloupensis (Fleutiaux & Sallé, 1889)
Type locality — Guadeloupe. (MNHN). Distribution — Cuba, Puerto Rico, Bahamas, Barbados, Antigua, St. Croix, Grenada, Dominica, Mustique, Guadeloupe, Curação, Martinique.
 Lepturges guadeloupensis Fleutiaux & Sallé, 1889: 472; Gahan, 1895: 136; Leng & Mutchler, 1914: 450 (distr.); Wolcott, 1924: 111 (hosts); Russo, 1930: 144 (distr., hosts); Wolcott, 1936: 264 (distr.); Beatty, 1944: 142 (distr.); Martorell, 1945: 118, 297; Ramos, 1946: 42 (distr.); Wolcott, 1948: 346; Tucker, 1952: 346 (distr.); Cazier & Lacey, 1952: 54; Duffy, 1960: 255 (larva); Miskimen & Bond, 1970: 94 (distr.); Zayas, 1975: 270.
 Urgleptes guadeloupensis; Gilmour, 1959d: 8; 1963a: 79; Chemsak, 1969: 190 (distr.); Villiers, 1980a: 94 (lect.); 1980b: 467 (distr.); 1980c: 579, fig. 102; Chalumeau, 1983: 233 (distr., hosts).; Chemsak et al., 1992: 148 (cat.); Browne et al., 1993: 51 (distr.); Monné, 2001b: 36 (cat. hosts); Touroult, 2004b: 130 (hosts).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Mass loss predictions for Subdwarf B stars
Creators: name: Vink, Jorick S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of Monte Carlo mass-loss predictions for hot low-mass stars, specifically for Subdwarf B (SdB) stars. It is shown that the mass-loss rates on the Horizontal Branch (HB) computed from radiative line-driven wind models are not high enough to create SdB stars. We argue, however, that the mass loss plays a role in the chemical abundance patterns observed both in field SdB stars, as well as in cluster HB stars. The derived mass loss recipe for these (extremely) hot HB stars may also be applied to other groups of hot low-mass stars, such as post-HB (AGB-manque, UV-bright) stars, over a range in effective temperatures between 10000 and 50000 Kelvin. Finally, we present preliminary spectral synthesis on the more luminous SdB stars for which emission cores in Halpha have been detected (Heber et al. 2002). We find that these line profiles can indeed be interpreted as the presence for a stellar wind with mass loss of the order of log(Mdot) = -11 (Msun/year).
description: 8 pages, 1 figure, to appear in "Extreme Horizontal Branch Stars and Related Objects", Astrophysics and Space Science, Kluwer, ed. P. Maxted
MPEC 2025-H07 : 2024 HJ
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Supernova neutrino scattering off Gadolinium odd isotopes in water Cherenkov detectors
Creators: name: Divari, Paraskevi C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In this work, the supernova neutrino(SN) charged-current interactions with Gd odd isotopes (A=155 and 157) are studied. We use measured spectra and the quasiparticle-phonon model (MQPM) to calculate the charged current response of odd Gd isotopes to supernova neutrinos. Flux-averaged cross-sections are obtained considering quasi-thermal neutrino spectra.
description: 10 pages, 5 figures, 2 Tables. arXiv admin note: substantial text overlap with arXiv:1808.01677; text overlap with arXiv:nucl-th/9709006 by other authors
Public Distribution System vs. Market: Analysis of Wheat and Rice Consumption in India
Creators: name: Kozicka, Marta
name: Weber, Regine
name: Kalkuhl, Matthias
name: Kozicka, Marta
name: Weber, Regine
name: Kalkuhl, Matthias
Publisher: name: Unknown
Year: 2016
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Food Security
subject: Policies
subject: India
subject: Targeted Public Distribution System
subject: targeting

description: Despite the large-scale antipoverty programs, especially food and nutrition programs, 15 per cent of Indian population is undernourished. The National Food Security Act (NFSA) aims at reducing food insecurity by granting a right to food to a large share of the population. The implementation of the world largest food aid program, however, is controversially debated: While historically, rationed highly subsidizes staple food have been used to improve the access to food for poor people, cash transfers are considered as an alternative with lower market distortions, leakages and fiscal costs. This study analyzes consumption patterns of wheat and rice delivered through the Public Distribution System in India and investigates targeting errors as well as reasons for leakage, self-selection and under-supply of staples using cross-sectional household data on all-India level. Our findings indicate some serious targeting errors of the current distribution system as migrant workers and female-led households are not well covered. We find that leakage rates are in general very low for poor households and regions with high poverty rates, implying that higher market prices have negative consequences for the poor excluded from the system. Further, wealthier households restrain from consuming subsidized grains. This negative self-selection of wealthier households implies a high potential for cost savings that would be lost under a cash-transfer scheme. Thus, or study provides a subtle and differentiated analysis that is highly useful for improving the current distribution system as well as design and targeting issues relevant for an alternative cash-transfer system.
Online Appendix for "What Does It Mean and Why Should I Bother? Motivating Students to Write Better Commit Messages"
Creators: name: unkown, unkown
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 461202
subject: Empirical software engineering
classificationCode: 520102
subject: Educational psychology
classificationCode: 390405
subject: Educational technology and computing

description: A replication package has been created and made available in the online appendix to allow interested readers to learn more about the game and its results. The package contains three directories: one for the detailed statistical data of the commit messages (about commits), one for the surveys and the related results of those surveys (about surveys), and one for the statistical data about the game (about the game). Interested readers can find here all statistics collected during the research and the related diagrams that provide deeper insight into the discussed topics.
Food Grain Policies in India and their Implications for Stocks and Fiscal Costs: A Partial Equilibrium Analysis
Creators: name: Kozicka, Marta
name: Kalkuhl, Matthias
name: Brockhaus, Jan
name: Kozicka, Marta
name: Kalkuhl, Matthias
name: Brockhaus, Jan
Publisher: name: Unknown
Year: 2016
Subjects: subject: Crop Production/Industries
subject: Food Security and Poverty
subject: India
subject: grain storage
subject: fiscal costs
subject: food grain policies
subject: NFSA
subject: reforms

description: This paper analyzes current and possible future reforms of the Indian food policies of the two most important staple grains, wheat and rice, within a two commodity dynamic partial equilibrium model with stochastic shocks. The model is empirically grounded and reproduces past values well. It uses a new reduced-form approach to capture private storage dynamics. We evaluate implementation of the National Food Security Act (NFSA) under several policy measures with the current regime as well as two scenarios with a regime change – implementation of cash transfers and deficiency payments. Implications for market fundamentals and fiscal costs were simulated in the medium term – until 2020/21. The NFSA puts a high pressure on fiscal costs and public stocks. Relying on imports with low MSPs results in a high stock-out risk and the lowest fiscal costs, however with high domestic price levels and volatility and high international prices. A policy strategy to manipulate procurement prices in order to maintain public stocks close to the norms leads to slightly higher fiscal costs with lower and more stable prices and ample stocks. A cash-based regime can bring considerable savings and curb fiscal costs, particularly if targeted to the poor, and would leave ample stocks due to higher private stocks. However, this scenario shows the highest market price levels and variability, which can have negative effects on some producers and consumers as well as political stability.
Extended data for the satuRn publication
Creators: name: Gilis, Jeroen
name: Vitting-Seerup, Kristoffer
name: Van Den Berge, Koen
name: Clement, Lieven
Publisher: name: Zenodo
Year: 2021
Subjects: Extended data
Supplementary figures
Differential transcript usage
satuRn

description: On this Zenodo upload, we share the Extended data or supplementary materials to our publication of the satuRn R package. This upload includes three files: Supplementary_Figures.pdf: The supplementary figures to the satuRn publication, including figure captions. DTU_Methods_Detail.pdf: A .pdf text file that describes the different DTU tools that were included in our benchmarks in greater detail as compared to the description in our main publication. For even higher detail, we refer to the respective original publications. GSEA_MSigDB.xlsx: The output of the Gene Set Enrichment Analyses (GSEA) for the case study of our publication as generated by the online MSigDB platform.
Assessing EU trade preferences for developing countries' development and food security
Creators: name: Aghajanzadeh-Darzi, Parisa
name: Bellora, Cecilia
name: Bureau, Jean-Christophe
name: Doburdhun, Anais
name: Aghajanzadeh-Darzi, Parisa
name: Bellora, Cecilia
name: Bureau, Jean-Christophe
name: Doburdhun, Anais
Publisher: name: Unknown
Year: 2015
Subjects: subject: Food Security and Poverty
subject: International Development
subject: EU trade policy
subject: agricultural trade
subject: food security
subject: developing countries

description: The EU has a long history of specific trade arrangements with developing countries. Under a variety of schemes, the EU allows developing countries to export goods to the Community market with reduced or zero duty. The stated objective is to encourage economic growth and to promote sustainable development in developing countries through their integration into the world trade system. Recently, these schemes have experienced significant reform. This applies particularly to the case of the Generalized System of Preferences and the arrangements affecting African, Caribbean, and Pacific countries. In addition, preferential (reciprocal) trade agreements are replacing non-reciprocal tariff concessions. We describe the current status of EU trade policy with developing countries, focusing on those where food security is a major issue. We assess the impact of selected preferential schemes, using an applied general equilibrium model. Our counterfactual simulations show that removing EU preferences will impact negatively on some developing country economies; both exports and gross domestic product will go down (particularly in North and Sub-Saharan African regions). Overall, our simulations suggest that EU preferential agreements provide export opportunities and contribute to higher incomes, particularly the least developed countries. However, their contribution to food security is indirect. Because of the magnitude of the prices and income changes which we measure at the aggregate level, the impact on food and nutrition security indicators seems limited. To explore in more depth the impact of EU preferences on the food security of particularly vulnerable segments of the population would require our simulations to be combined with household data.
Quantum phases of hardcore bosons with repulsive dipolar density-density interactions on two-dimensional lattices
Creators: name: Koziol, J. A.
name: Morigi, G.
name: Schmidt, K. P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyse the ground-state quantum phase diagram of hardcore Bosons interacting with repulsive dipolar potentials. The bosons dynamics is described by the extended-Bose-Hubbard Hamiltonian on a two-dimensional lattice. The ground state results from the interplay between the lattice geometry and the long-range interactions, which we account for by means of a classical spin mean-field approach limited by the size of the considered unit cells. This extended classical spin mean-field theory accounts for the long-range density-density interaction without truncation. We consider three different lattice geometries: square, honeycomb, and triangular. In the limit of zero hopping the ground state is always a devil's staircase of solid (gapped) phases. Such crystalline phases with broken translational symmetry are robust with respect to finite hopping amplitudes. At intermediate hopping amplitudes, these gapped phases melt, giving rise to various lattice supersolid phases, which can have exotic features with multiple sublattice densities. At sufficiently large hoppings the ground state is a superfluid. The stability of phases predicted by our approach is gauged by comparison to the known quantum phase diagrams of the Bose-Hubbard model with nearest-neighbour interactions as well as quantum Monte Carlo simulations for the dipolar case on the square and triangular lattice. Our results are of immediate relevance for experimental realisations of self-organised crystalline ordering patterns in analogue quantum simulators, e.g., with ultracold dipolar atoms in an optical lattice.
description: 35 pages, 10 figures
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Creators: name: Tibur Garc
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: 60801 Animal Behaviour
subject: FOS: Biological sciences
subject: 79901 Agricultural Hydrology (Drainage, Flooding, Irrigation, Quality, etc.)
subject: FOS: Other agricultural sciences

description: ---------
Urgleptes kuscheli Linsley & Chemsak 1966
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Urgleptes
Urgleptes kuscheli

description: 34. Urgleptes kuscheli Linsley & Chemsak, 1966
Type locality — Costa Rica, Cocos Islands. (CASC). Distribution — Costa Rica (Cocos Islands).
 Urgleptes kuscheli Linsley & Chemsak, 1966b: 245, fig. 2; Chemsak et al., 1992: 148 (cat.).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Dynamical effects of an unconventional current-phase relation in YBCO dc-SQUIDs
Creators: name: Lindstrom, T.
name: Charlebois, S. A.
name: Tzalenchuk, A. Ya.
name: Ivanov, Z.
name: Amin, M. H. S.
name: Zagoskin, A. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The predominant d-wave pairing symmetry in high temperature superconductors allows for a variety of current-phase relations in Josephson junctions, which is to a certain degree fabrication controlled. In this letter we report on direct experimental observations of the effects of a non-sinusoidal current-phase dependence in YBCO dc-SQUIDs, which agree with the theoretical description of the system.
description: 4 pages, 4 ps figures, to apprear in Phys. Rev. Lett
On Connectivity and Robustness in Random Intersection Graphs
Creators: name: Zhao, Jun
name: Yagan, Osman
name: Gligor, Virgil
Publisher: name: arXiv
Year: 2019
Subjects: subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: Random intersection graphs have received much attention recently and been used in a wide range of applications ranging from key predistribution in wireless sensor networks to modeling social networks. For these graphs, each node is equipped with a set of objects in a random manner, and two nodes have an undirected edge in between if they have at least one object in common. In this paper, we investigate connectivity and robustness in a general random intersection graph model. Specifically, we establish sharp asymptotic zero-one laws for k-connectivity and k-robustness, as well as the asymptotically exact probability of k-connectivity, for any positive integer k. The k-connectivity property quantifies how resilient is the connectivity of a graph against node or edge failures, while k-robustness measures the effectiveness of local-information-based consensus algorithms (that do not use global graph topology information) in the presence of adversarial nodes. In addition to presenting the results under the general random intersection graph model, we consider two special cases of the general model, a binomial random intersection graph and a uniform random intersection graph, which both have numerous applications as well. For these two specialized graphs, our results on asymptotically exact probabilities of k-connectivity and asymptotic zero-one laws for k-robustness are also novel in the literature.
description: published in IEEE Transactions on Automatic Control. arXiv admin note: text overlap with arXiv:1409.5995
A Generative Model for Quasar Spectra
Creators: name: Eilers, Anna-Christina
name: Hogg, David W.
name: Schölkopf, Bernhard
name: Foreman-Mackey, Daniel
name: Davies, Frederick B.
name: Schindler, Jan-Torge
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We build a multi-output generative model for quasar spectra and the properties of their black hole engines, based on a Gaussian process latent-variable model. This model treats every quasar as a vector of latent properties such that the spectrum and all physical properties of the quasar are associated with non-linear functions of those latent parameters; the Gaussian process kernel functions define priors on the function space. Our generative model is trained with a justifiable likelihood function that allows us to treat heteroscedastic noise and missing data correctly, which is crucial for all astrophysical applications. It can predict simultaneously unobserved spectral regions, as well as the physical properties of quasars in held-out test data. We apply the model to rest-frame ultraviolet and optical quasar spectra for which precise black hole masses (based on reverberation mapping measurements) are available. Unlike reverberation-mapping studies, which require multi-epoch data, our model predicts black hole masses from single-epoch spectra, even with limited spectral coverage. We demonstrate the capabilities of the model by predicting black hole masses and unobserved spectral regions. We find that we predict black hole masses at close to the best possible accuracy.
description: accepted for publication in ApJ
Some special Kahler metrics on SL(2,C) and their holomorphic quantization
Creators: name: Baptista, J. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The group SU(2)*SU(2) acts naturally on SL(2,C) by simultaneous right and left multiplication. We study the Kahler metrics invariant under this action using global Kahler potentials. The volume growth and various curvature quantities are then explicitly computable. Examples include metrics of positive, negative and zero Ricci curvature, and the 1-lump metric of the CP^1-model on a sphere. We then look at the holomorphic quantization of these metrics, where some physically satisfactory results on the dimension of the Hilbert space can be obtained. These give rise to an interesting geometrical conjecture, regarding the dimension of this space for general Stein manifolds in the semi-classical limit.
description: 28 pages, no figures
Why Your Bar Has Crime but Not Mine: Resolving the Land Use and Crime – Risky Facility Conflict
Creators: name: YongJei Lee
name: O, SooHyun
name: Eck, John E.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Cancer
subject: Science Policy

description: Interpretations of two bodies of crime-place research conflict. Land use and crime studies claim particular facilities increase crime. Risky facilities studies show most places of a single type have little or no crime, but a few of that type have a great deal of crime. How can a facility be generally criminogenic and mostly safe? To resolve this conflict, we make use of the fact that a single owner can own multiple facilities and each owner may have consistent management practices in their facilities. We first replicate findings of earlier land use studies with crime and land parcel data from Cincinnati. Second, we cluster land parcels by property owners and re-estimate the land use and crime relationship. The links between land use and crime in the replication decline or disappear after clustering. Findings suggest owners’ place management influences crime at their places, thus resolving the conflict between the two bodies of research. Read the transcript Watch the video on Vimeo
A Comparative L-dwarf Sample Exploring the Interplay Between Atmospheric Assumptions and Data Properties
Creators: name: Gonzales, Eileen C.
name: Burningham, Ben
name: Faherty, Jacqueline K.
name: Lewis, Nikole K.
name: Visscher, Channon
name: Marley, Mark
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Comparisons of atmospheric retrievals can reveal powerful insights on the strengths and limitations of our data and modeling tools. In this paper, we examine a sample of 5 similar effective temperature (Teff) or spectral type L dwarfs to compare their pressure-temperature (P-T) profiles. Additionally, we explore the impact of an object's metallicity and the observations' signal-to-noise (SNR) on the parameters we can retrieve. We present the first atmospheric retrievals: 2MASS J15261405$+$2043414, 2MASS J05395200$-$0059019, 2MASS J15394189$-$0520428, and GD 165B increasing the small but growing number of L-dwarfs retrieved. When compared to atmospheric retrievals of SDSS J141624.08+134826.7, a low-metallicity d/sdL7 primary in a wide L+T binary, we find similar Teff sources have similar P-T profiles with metallicity differences impacting the relative offset between their P-T profiles in the photosphere. We also find that for near-infrared spectra, when the SNR is $\gtrsim80$ we are in a regime where model uncertainties dominate over data measurement uncertainties. As such, SNR does not play a role in the retrieval's ability to distinguish between a cloud-free and cloudless model, but may impact the confidence of the retrieved parameters. Lastly, we also discuss how to break cloud model degeneracies and the impact of extraneous gases in a retrieval model.
description: 19 pages, 3 figures, 7 tables
Chasing After the Frontier in Agricultural Productivity
Creators: name: Wurlod, Jules-Daniel
name: Eaton, Derek
name: Wurlod, Jules-Daniel
name: Eaton, Derek
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural and Food Policy
subject: Productivity Analysis
subject: agriculture
subject: productivity
subject: convergence
subject: R&D
subject: IPR
subject: education

description: This paper explores international productivity patterns in agriculture. We test whether countries higher productivity growth has been experienced by countries that were initially further from the technological frontier. Based on a panel of 84 countries at various levels of development, we find support for convergence among OECD countries but divergence in our sample at large over the period 1960-2010. We then test whether technological catch-up is conditional on absorptive capacities and domestic investments in R&D. While agricultural research intensity has a significant effect on labor productivity growth, the size of this effect decreases the further the country is from the frontier. We calculate a threshold level for the effectiveness of research intensity: increased R&D contributes to catching up to the frontier for those countries with a distance to the frontier less than 22. We also test for additional factors affecting productivity growth, and find that secondary education plays a strong role in less developed countries, while trade openness appears to have had a positive effect on productivity in middle income countries. On the other hand, there is little evidence of much effect, either positive or negative from IPR protection. Of perhaps greater interest is the apparent impact of economic growth outside of agriculture in driving agricultural productivity improvements.
Energy-Minimizing Bit Allocation For Powerline OFDM With Multiple Delay Constraints
Creators: name: Jiravanstit, Kaemmatat
name: Santipach, Wiroonsak
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We propose a bit-allocation scheme for powerline orthogonal frequency-division multiplexing (OFDM) that minimizes total transmit energy subject to total-bit and delay constraints. Multiple delay requirements stem from different sets of data that a transmitter must time-multiplex and transmit to a receiver. The proposed bit allocation takes into account the channel power-to-noise density ratio of subchannels as well as statistic of narrowband interference and impulsive noise that is pervasive in powerline communication (PLC) channels. The proposed scheme is optimal with 1 or 2 sets of data, and is suboptimal with more than 2 sets of data. However, numerical examples show that the proposed scheme performs close to the optimum. Also, it is less computationally complex than the optimal scheme especially when minimizing total energy over large number of data sets. We also compare the proposed scheme with some existing schemes and find that our scheme requires less total transmit energy when the number of delay constraints is large.
The Phase Diagram of the Quark-Meson Model
Creators: name: Schaefer, Bernd-Jochen
name: Wambach, Jochen
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Within the proper-time renormalization group approach, the chiral phase diagram of a two-flavor quark-meson model is studied. In the chiral limit, the location of the tricritical point which is linked to a Gaussian fixed point, is determined. For quark chemical potentials smaller than the tricritical one the second-order phase transition belongs to the O(4) universality class. For temperatures below the tricritical one we find initially a weak first-order phase transition which is commonly seen in model studies and also in recent lattice simulations. In addition, below temperatures of T
description: 19 pages, 4 figures,v2; minor corrections in the text, references added, slightly extended conclusion, to appear in NPA