cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ideal Unconventional Weyl Point in a Chiral Photonic Metamaterial
Creators: name: Yang, Yihao
name: Gao, Zhen
name: Feng, Xiaolong
name: Huang, Yue-Xin
name: Zhou, Peiheng
name: Yang, Shengyuan A.
name: Chong, Yidong
name: Zhang, Baile
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Unconventional Weyl points (WPs), carrying topological charge 2 or higher, possess interesting properties different from ordinary charge-1 WPs, including multiple Fermi arcs that stretch over a large portion of the Brillouin zone. Thus far, such WPs have been observed in chiral materials and acoustic metamaterials, but there has been no clean demonstration in photonics in which the unconventional photonic WPs are separated from trivial bands. We experimentally realize an ideal symmetry-protected photonic charge-2 WP in a three-dimensional topological chiral microwave metamaterial. We use field mapping to directly observe the projected bulk dispersion, as well as the two long surface arcs that form a noncontractible loop wrapping around the surface Brillouin zone. The surface states span a record-wide frequency window of around 22.7% relative bandwidth. We demonstrate that the surface states exhibit a novel topological self-collimation property and are robust against disorder. This work provides an ideal photonic platform for exploring fundamental physics and applications of unconventional WPs.
description: 6 pages, 4 figures
DYNAMIC ANALYSIS OF A RESIDUE MANAGEMENT SYSTEM IN COTTON
Creators: name: Paudel, Krishna P.
name: Lohr, Luanne
name: Paudel, Krishna P.
name: Lohr, Luanne
Publisher: name: Unknown
Year: 1998
Subjects: Environmental Economics and Policy
Productivity Analysis

description: Residue management system (RMS) offers increase productivity gain to farmers by increasing the organic matter. Farmers have failed to realize this gain and consequently have not adopted RMS in cotton cultivation. Benefit of adopting RMS system appears sooner than farmers would think.
Chemical Constraints on the Water and Total Oxygen Abundances in the Deep Atmosphere of Saturn
Creators: name: Visscher, Channon
name: Fegley, Bruce
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Thermochemical equilibrium and kinetic calculations for the trace gases CO, PH3, and SiH4 give three independent constraints on the water and total oxygen abundances of Saturn's deep atmosphere. A lower limit to the water abundance of H2O/H2 > 1.7 x 10^-3 is given by CO chemistry while an upper limit of H2O/H2 < 5.5 x 10^-3 is given by PH3 chemistry. A combination of the CO and PH3 constraints indicates a water enrichment on Saturn of 1.9 to 6.1 times the solar system abundance (H2O/H2 = 8.96 x 10^-4). The total oxygen abundance must be at least 1.7 times the solar system abundance (O/H2 = 1.16 x 10^-3) in order for the SiH4 to remain below a detection limit of SiH4/H2 < 2 x 10^-10. A combination of the CO, PH3, and SiH4 constraints suggests that the total oxygen abundance on Saturn is 3.2 to 6.4 times the solar system abundance. Our results indicate that oxygen on Saturn is less enriched than other heavy elements (such as C and P) relative to a solar system composition. This work was supported by NASA NAG5-11958.
description: 19 pages, 2 figures, accepted for publication in the Astrophysical Journal
The influence of the city metaphor and its derivates in software visualization - Replication Package
Creators: name: David Moreno-Lumbreras
name: Jesus M. Gonzalez-Barahona
name: Gregorio Robles
name: Valerio Cosentino
Publisher: name: Zenodo
Year: 2024
Subjects: software visualization
city metaphor
software comprehension
slr
visualizations
extended reality
state of the art

description: The files attached contain the replication package for the experiments presented in the article "The influence of the city metaphor and its derivates in software visualization".

Please, unzip the zip file and follow the README.md file
D8.2 MES-CoBraD Validation Framework
Creators: name: IR-HSCSP- NIA
Publisher: name: Zenodo
Year: 2022
Subjects: CoBraD
Platform validity
Framework evaluation
Medical data evaluation and process

description: The MES-CoBraD Framework Evaluation and System Validation deliverable documents the evaluation framework and validation methodology of the MES-CoBraD Platform and Pilot Protocol, defining the various practices for obtaining feedback from end-users and including a set of test-cases to be executed by the end users. The final MES-CoBraD Expert System will have multiple benefits for the diagnostics and treatments of complex brain disorders. In terms of diagnostics, the platform will output information that can help inform the diagnosis given to patients by clinicians, and in turn, the advice, guidance, and appropriate treatments for that action. The Platform’s wide array of outputs will be of interest to a vast range of different researchers, involved mainly in medical and social research, but not limited to these fields.
Geometrical Thermodynamic Field Theory
Creators: name: Sonnino, Giorgio
name: Evslin, Jarah
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A manifestly covariant, coordinate independent reformulation of the Thermodynamic Field Theory (TFT) is presented. The TFT is a covariant field theory that describes the evolution of a thermodynamic system, extending the near-equilibrium theory established by Prigogine in 1954. We introduce the {\it Minimum Dissipation Principle}, which is conjectured to apply to any system relaxing towards a steady-state. We also derive the thermodynamic field equations, which in the case of alpha-alpha and beta-beta processes have already appeared in the literature. In more general cases the equations are notably simpler than those previously encountered and they are conjectured to hold beyond the weak-field regime. Finally we derive the equations that determine the steady-states as well as the critical values of the control parameters beyond which a steady-state becomes unstable.
description: 32 pages and 3 eps figures
The role of socially responsible corporations in community development : a case study of Fundacion Nanpaz in the Ecuadorian Amazon
Creators: name: Jawanda, Jasmindra
Publisher: name: University of British Columbia
Year: 2009

description: Natural resource extraction has a deeply rooted legacy in the developing world, especially in Latin America, due to the historical onslaught of colonialism and mercantilism. For the past couple of decades, Latin America has been experiencing the phenomenon of globalization, accompanied by the influx of trans-national natural resource companies whose main mandate seems to be to enter a country, extract resources and then exit the area. However, as a result of this type of corporate conduct, the surrounding communities are often left in a state of cultural and environmental degradation. Interestingly, a new era of "corporate consciousness" is entering the business world where corporations are chanting the mantra of "social responsibility" and are thereby becoming committed to creating positive change in many marginalized communities throughout the world. This thesis examines two themes: (1) the role of a trans-national oil company as a "socially responsible" company in the communities of the Ecuadorian Amazon and; (2) the establishment of a local NGO, as a bridge between the trans-national oil company and communities, in order to implement viable community development projects. A community questionnaire (structured interview) was applied and unstructured interviews were conducted with community residents, NGO staff and environmental specialists. The principal findings were: (1) petroleum development creates adverse effects on the social, cultural, economic and environmental fabric of many communities; (2) there is a dire need for community organization for communities to become selfsufficient; (3) community residents must become part of the political process in order for their voices to be heard and recognized and; (4) community development projects can provide marginalized communities with alternative livelihood opportunities and effective conservation programs.
D7.1 System requirements & architecture
Creators: name: SIMAVI
Publisher: name: Zenodo
Year: 2022
Subjects: CoBraD
Platform Architecture
Technological maturity
Medical data evaluation and process

description: This deliverable (D7.1) presents the MES-CoBraD System requirements and Platform Architecture specification. Starting from the developed scenarios in the eHealth ecosystem, in this deliverable will be identified technical requirements and will be grouped into sets of functional requirements and nonfunctional requirements. It will be a description of how the identified requirements relate to each other and what their priority is.
Deep inelastic scattering and forward neutral pion production at NLO
Creators: name: Aurenche, P.
name: Basu, Rahul
name: Fontannaz, M.
name: Godbole, R. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a detailed phenomenological study of forward hadron neutral pion production in deep inelastic scattering, with both the direct and the resolved contributions calculated to NLO accuracy. A comparison of the theoretical predictions for the various distributions with the H1 data and a study of stability of the QCD predictions under changes of scales is the focus of this study. We obtain a very good overall description of the recent H1 data with the choice of scale Q^2 + E^2_{perp}, in contrast to the (Q^2 + E^2_{perp})/2 required earlier when the resolved contribution was included only at LO accuracy. We find a more modest variation of the predictions, as the scale is changed from (Q^2 + E^2_{perp})/2 to 2(Q^2 + E^2_{perp}), as compared to the case where the resolved contribution was included only at LO accuracy. This variation is of the order of the rather large experimental errors. Unfortunately, this fact prevents us from concluding that perturbation theory gives an unambiguous prediction for forward particle production in deep inelastic scattering. However, the overall success of perturbative QCD in explaining the small x_{Bj} data means that perhaps a full resummation of the BFKL ladder is not called for. We notice the need for rather large resolved contributions to explain the data at low x_{Bj} even at somewhat larger Q^2 values.
description: 18 pages, 13 figures, minor changes in text, version to appear in EPJC
FROM A SASAKAWA GLOBAL 2000 PILOT PROGRAM TO SUSTAINED INCREASES IN AGRICULTURAL PRODUCTIVITY: THE CRITICAL ROLE OF GOVERNMENT POLICY IN FOSTERING THE ETHIOPIAN TRANSITION
Creators: name: Stepanek, Julie
name: Kelly, Valerie A.
name: Howard, Julie A.
name: Stepanek, Julie
name: Kelly, Valerie A.
name: Howard, Julie A.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Agricultural and Food Policy
subject: Productivity Analysis
subject: Sasakawa-Global 2000
subject: Ethiopia
subject: government regulation
subject: agricultural input markets

description: Drawing from the experience in Ethiopia, this paper examines the role that public policy must play in building public/private partnerships to develop the extension programs, input markets, and credit services necessary to turn a pilot Sasakawa-Global 2000 program into economically sustainable national policies and programs.
The discrepancy between solar abundances and helioseismology
Creators: name: Antia, H. M.
name: Basu, Sarbani
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: There have been recent downward revisions of the solar photospheric abundances of Oxygen and other heavy elements. These revised abundances along with OPAL opacities are not consistent with seismic constraints. In this work we show that the recently released OP opacity tables cannot resolve this discrepancy either. While the revision in opacities does not seem to resolve this conflict, an upward revision of Neon abundance in solar photosphere offers a possible solution to this problem.
description: To appear in ApJ Letters
การเดินของม้าหมากรุกปิดแบบ (1, 2, 2) บนกระดานหมากรุกขนาด 3r x 4s x 4t เมื่อ r มากกว่าหรือเท่ากับ 1 และ s, t มากกว่าหรือเท่ากับ 2
Creators: name: ศิริรัตน์ สิงหันต์
Publisher: name: วารสารคณิตศาสตร์ โดย สมาคมคณิตศาสตร์แห่งประเทศไทย ในพระบรมราชูปถัมภ์
Year: 2020
Subjects: การเดินของม้าหมากรุกปิด
กระดานหมากรุก

description: วารสารคณิตศาสตร์ โดย สมาคมคณิตศาสตร์แห่งประเทศไทย ในพระบรมราชูปถัมภ์, 65, 701, 49 - 64
The influence of the city metaphor and its derivates in software visualization - Replication Package
Creators: name: Moreno-Lumbreras, David
name: Gonzalez-Barahona, Jesus M.
name: Robles, Gregorio
name: Cosentino, Valerio
Publisher: name: Zenodo
Year: 2023
Subjects: software visualization
city metaphor
software comprehension
slr
visualizations
extended reality
state of the art

description: The files attached contain the replication package for the experiments presented in the article "The influence of the city metaphor and its derivates in software visualization". Please, unzip the zip file and follow the README.md file
X-rays from HH210 in the Orion nebula
Creators: name: Grosso, Nicolas
name: Feigelson, Eric D.
name: Getman, Konstantin V.
name: Kastner, Joel H.
name: Bally, John
name: McCaughrean, Mark J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the detection during the Chandra Orion Ultradeep Project (COUP) of two soft, constant, and faint X-ray sources associated with the Herbig-Haro object HH210. HH210 is located at the tip of the NNE finger of the emission line system bursting out of the BN-KL complex, northwest of the Trapezium cluster in the OMC-1 molecular cloud. Using a recent Halpha image obtained with the ACS imager on board HST, and taking into account the known proper motions of HH210 emission knots, we show that the position of the brightest X-ray source, COUP703, coincides with the emission knot 154-040a of HH210, which is the emission knot of HH210 having the highest tangential velocity (425 km/s). The second X-ray source, COUP704, is located on the complicated emission tail of HH210 close to an emission line filament and has no obvious optical/infrared counterpart. Spectral fitting indicates for both sources a plasma temperature of ~0.8 MK and absorption-corrected X-ray luminosities of about 1E30 erg/s (0.5-2.0 keV). These X-ray sources are well explained by a model invoking a fast-moving, radiative bow shock in a neutral medium with a density of ~12000 cm^{-3}. The X-ray detection of COUP704 therefore reveals, in the complicated HH210 region, an energetic shock not yet identified at other wavelengths.
description: 5 pages, 3 figures; accepted for publication in A&A Letters
BIODIESEL AS A SUBSTITUTE FOR PETROLEUM DIESEL IN A STOCHASTIC ENVIRONMENT
Creators: name: Tareen, Irfan Y.
name: Duffield, James A.
name: Wetzstein, Michael E.
name: Tareen, Irfan Y.
name: Duffield, James A.
name: Wetzstein, Michael E.
Publisher: name: Unknown
Year: 1999
Subjects: Resource /Energy Economics and Policy

description: Policy makers should consider price volatility effects when determining appropriate spending levels for alternative fuel programs.
SPATIAL BREAK-EVEN VARIABILITY FOR CUSTOM HIRE VARIABLE RATE TECHNOLOGY ADOPTION
Creators: name: Mahajanashetti, S.B.
name: English, Burton C.
name: Roberts, Roland K.
name: Mahajanashetti, S.B.
name: English, Burton C.
name: Roberts, Roland K.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Land Economics/Use
subject: Resource /Energy Economics and Policy
subject: Precision farming
subject: site-specific farming
subject: nitrogen
subject: corn
subject: spatial variability
subject: yield variability
subject: profit function

description: A theoretical model identified ranges of spatial variability required within multiple-land-class fields for economically viable variable rate technology (VRT) and the spatial variability required for maximum return to VRT. An example illustrated that return to VRT and the viable range of spatial variability increased for higher corn and nitrogen prices.
THE TIMING OPTION IN FUTURES CONTRACTS AND PRICE BEHAVIOR AT CONTRACT MATURITY
Creators: name: Hranaiova, Jana
name: Tomek, William G.
name: Hranaiova, Jana
name: Tomek, William G.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Demand and Price Analysis
subject: Marketing
subject: FOS: Economics and business
subject: timing option
subject: convenience yield
subject: basis
subject: hedging effectiveness

description: The value of the timing option implicit in CBOT corn futures contract is estimated. Separate estimates are obtained for the option without and with convenience yield. The effect of the option on basis behavior at day one of the maturity month is examined and is found statistically significant.
REL: An Entity Linker Standing on the Shoulders of Giants
Creators: name: van Hulst, Johannes M.
name: Hasibi, Faegheh
name: Dercksen, Koen
name: Balog, Krisztian
name: de Vries, Arjen P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences
subject: H.3

description: Entity linking is a standard component in modern retrieval system that is often performed by third-party toolkits. Despite the plethora of open source options, it is difficult to find a single system that has a modular architecture where certain components may be replaced, does not depend on external sources, can easily be updated to newer Wikipedia versions, and, most important of all, has state-of-the-art performance. The REL system presented in this paper aims to fill that gap. Building on state-of-the-art neural components from natural language processing research, it is provided as a Python package as well as a web API. We also report on an experimental comparison against both well-established systems and the current state-of-the-art on standard entity linking benchmarks.
PHASE, a Monte Carlo event generator for six-fermion physics at the LHC
Creators: name: Accomando, E.
name: Ballestrero, A.
name: Maina, E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: PHASE is a new event generator dedicated to the study of Standard Model processes with six fermions in the final state at the LHC. The code is intended for analyses of vector boson scattering, Higgs search, three gauge boson production, and top physics. This first version of the program describes final states characterized by the presence of one neutrino, $pp\to 4q +lν_l$, at O($α^6$). PHASE is based on a new iterative-adaptive multichannel technique, and employs exact leading order matrix elements. The code can generate unweighted events for any subset of all available final states. The produced parton-level events carry full information on their colour and flavour structure, enabling the evolution of the partons into fully hadronised final states. An interface to hadronization packages is provided via the Les Houches Protocol.
description: 27 pages, Latex, 6 figures
Nonreciprocal transition between two indirectly coupled energy levels
Creators: name: Xu, Xun-Wei
name: Shi, Hai-Quan
name: Chen, Ai-Xi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a theoretical scheme to realize nonreciprocal transition between two energy levels that can not coupled directly. Suppose they are coupled indirectly by two auxiliary levels with a cyclic four-level configuration, and the four transitions in the cyclic configuration are controlled by external fields. The indirectly transition become nonreciprocal when the time reversal symmetry of the system is broken by the synthetic magnetic flux, i.e., the total phase of the external driving fields through the cyclic four-level configuration. The nonreciprocal transition can be identified by the elimination of a spectral line in the spontaneous emission spectrum. Our work introduces a feasible way to observe nonreciprocal transition in a wide range of multi-level systems, including natural atoms or ions with parity symmetry.
description: 17 pages, 5 figures
PUBLIC OPINION OF AGBIOTECH IN THE US AND UK: A CONTENT ANALYSIS APPROACH
Creators: name: Kalaitzandonakes, Nicholas G.
name: Marks, Leonie A.
name: Kalaitzandonakes, Nicholas G.
name: Marks, Leonie A.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Teaching/Communication/Extension/Profession
subject: content analysis
subject: mass media reporting
subject: agricultural biotechnology

description: In this paper we use content analysis to show trend in public opinion of agrobiotechnology in the United Kingdom (UK) and the United States (US). We test for the degree of positive and negative content in mass media reporting over the period 1995-1998. Specifically, we test whether there are qualitative and quantitative differences between three national daily newspapers - the Daily Telegraph (UK), USA Today (US), and the Washington Post (US) - based on reporting of agrobiotechnology. Results indicate that content has become more negative in the UK over the time period while reporting the US has not significantly changed. Results indicate that both the BSE and Pusztai crises had an impact on the proportion of negative reporting in the Daily Telegraph.
Cold HI ejected into the Magellanic Stream
Creators: name: Dempsey, J.
name: McClure-Griffiths, N. M.
name: Jameson, K.
name: Buckland-Willis, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the direct detection of cold HI gas in a cloud ejected from the Small Magellanic Cloud (SMC) towards the Magellanic Stream. The cloud is part of a fragmented shell of HI gas on the outskirts of the SMC. This is the second direct detection of cold HI associated with the Magellanic Stream using absorption. The cold gas was detected using 21-cm HI absorption-line observations with the Australia Telescope Compact Array (ATCA) towards the extra-galactic source PMN J0029$-$7228. We find a spin (excitation) temperature for the gas of $68 \pm 20$ K. We suggest that breaking super shells from the Magellanic Clouds may be a source of cold gas to supply the rest of the Magellanic Stream.
description: 9 pages, 5 figures, accepted for publication in MNRAS
The Capture of Centaurs as Trojans
Creators: name: Horner, J.
name: Evans, N. Wyn
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Large scale simulations of Centaurs have yielded vast amounts of data, the analysis of which allows interesting but uncommon scenarios to be studied. One such rare phenomenon is the temporary capture of Centaurs as Trojans of the giant planets. Such captures are generally short (10 kyr to 100 kyr), but occur with sufficient frequency (about 40 objects larger than 1 km in diameter every Myr) that they may well contribute to the present-day populations. Uranus and Neptune seem to have great difficulty capturing Centaurs into the 1:1 resonance, while Jupiter captures some, and Saturn the most (80 %). We conjecture that such temporary capture from the Centaur population may be the dominant delivery route into the Saturnian Trojans. Photometric studies of the Jovian Trojans may reveal outliers with Centaur-like as opposed to asteroidal characteristics, and these would be prime candidates for captured Centaurs.
description: 5 pages, 2 figures, submitted to MNRAS (Letters)
FRAGILITY IN DAIRY PRODUCT DEMAND ANALYSIS
Creators: name: Maynard, Leigh J.
name: Liu, Deyu
name: Maynard, Leigh J.
name: Liu, Deyu
Publisher: name: Unknown
Year: 1999
Subjects: subject: Demand and Price Analysis
subject: Livestock Production/Industries
subject: dairy products
subject: demand analysis
subject: scanner data

description: Several reasons justify the expectation of increasingly price elastic demand for dairy products. Using weekly scanner data, we find support for this hypotheses, but with wide variation in elasticity estimates across model specifications. The results demonstrate the need for more routine specification testing before basing recommendations on potentially fragile inferences.
DEMAND FOR TANF IN MISSISSIPPI
Creators: name: Swindell, James W.
name: Martin, Steven W.
name: Reinschmiedt, Lynn L.
name: Hudson, Darren
name: Swindell, James W.
name: Martin, Steven W.
name: Reinschmiedt, Lynn L.
name: Hudson, Darren
Publisher: name: Unknown
Year: 1999
Subjects: Food Security and Poverty
Public Economics

description: The federal to state devolution of welfare programs accent the need for state and local policy makers to anticipate aggregate welfare demand. Pooled regression analysis using six years of county-level Mississippi TANF data identified effects of rurality, education, unemployment, poverty levels, and family structure on caseload numbers.
Strong lensing as a giant telescope to localize the host galaxy of gravitational wave event
Creators: name: Yu, Hai
name: Zhang, Pengjie
name: Wang, Fa-Yin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Standard siren cosmology of gravitational wave (GW) merger events relies on the identification of host galaxies and their redshifts. But this can be highly challenging due to numerous candidates of galaxies in the GW localization area. We point out that the number of candidates can be reduced by orders of magnitude for strongly lensed GW events, due to extra observational constraints. For the next-generation GW detectors like Einstein Telescope (ET), we estimate that this number is usually significantly less than one, as long as the GW localization uncertainty is better than $\sim 10\, \rm deg^2$. This implies that the unique identification of the host galaxy of lensed GW event detected by ET and Cosmic Explorer (CE) is possible. This provides us a promising opportunity to measure the redshift of the GW event and facilitate the standard siren cosmology. We also discuss its potential applications in understanding the evolution process and environment of the GW event.
description: 6 pages, 6 figures, submitted to MNRAS on March 13, 2020, accepted on July 1, 2020
A TWO-STAGE MODEL OF THE DEMAND FOR SPECIALTY CROP INSURANCE
Creators: name: Knox, Lyle
name: Richards, Timothy J.
name: Knox, Lyle
name: Richards, Timothy J.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Research Methods/ Statistical Methods
subject: Risk and Uncertainty
subject: crop insurance
subject: discrete / continuous choice
subject: grapes
subject: multinomial logit

description: Legislators are considering raising catastrophic (CAT 50% coverage) crop insurance premiums. However, estimates of a two-stage coverage-choice and participation model using county-level data from California grape growers show that the demand for CAT insurance is price-elastic, therefore, premium increases will worsen the financial performance of the grape-insurance program.
EFFECTS OF HEALTH CONCERNS AND CONSUMER CHARACTERISTICS ON U.S. MEAT CONSUMPTION
Creators: name: Moon, Wanki
name: Ward, Ronald W.
name: Moon, Wanki
name: Ward, Ronald W.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Health Concern
subject: Meat Demand
subject: Generalized Heckman

description: Using generalized Heckman's model and NPD data, this study specified a meat demand model incorporating health concern and demographics. Estimated model established empirical linkages between health concerns and meat consumption. Beef and pork were negatively linked to health concerns, whereas chicken, turkey and fish were positively associated with health concerns.
RECENT DEVELOPMENTS IN FRONTIER MODELLING AND EFFICIENCY MEASUREMENT
Creators: name: Coelli, Tim J.
name: Coelli, Tim J.
Publisher: name: Unknown
Year: 1995
Subjects: Research Methods/ Statistical Methods

description: In this paper recent developments in the estimation of frontier functions and the measurement of efficiency are surveyed, and the potential applicability of these methods in agricultural economics is discussed. Frontier production, cost and profit functions are discussed, along with the construction of technical, allocative, scale and overall efficiency measures relative to these estimated frontiers. The two primary methods of frontier estimation, econometric and linear programming, are compared. A survey of recent applications of frontier methods in agriculture is also provided.
Measurements of 1/ f noise in Josephson junctions at zero voltage: Implications for decoherence in superconducting quantum bits
Creators: name: Mueck, Michael
name: Korn, Matthias
name: Mugford, C. G. A.
name: Kycia, J. B.
name: Clarke, John
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Critical current fluctuations with a 1/ f spectral density (f is frequency) are potentially a limiting source of intrinsic decoherence in superconducting quantum bits (qubits) based on Josephson tunnel junctions. Prior measurements of this noise were made at nonzero voltages whereas qubits are operated in the zero voltage state. We report measurements of 1/ f noise in a dc superconducting quantum interference device first, coupled to a resonant tank circuit and operated in a dispersive mode at zero voltage, and, second, operated conventionally with a current bias in the voltage regime. Both measurements yield essentially the same magnitude of critical current 1/ f noise.
description: 3 pages, 2 figures
SOME IMPLICATIONS OF THE GROWTH OF THE MINERAL SECTOR
Creators: name: Gregory, R.G.
name: Gregory, R.G.
Publisher: name: Unknown
Year: 1976
Subjects: Resource /Energy Economics and Policy

description: The rapid growth of Australian mineral exports, through its effect on the balance of payments, is a significant force for structural change in other sectors. From the viewpoint of the rural sector which exports and the manufacturing sector which competes with imports, this force will be similar to that which would flow from very large tariff changes. Consequently, by observing the adjustments of the rural and manufacturing sectors to the rapid growth of mineral exports, it is possible to calculate indirect estimates of the effect of the Australian tariff on them. It is calculated that the mineral discoveries have had a much greater effect on these sectors than the recent across the board 25 per cent general reduction of tariffs.
ECONOMIC ASPECTS OF FARM POVERTY
Creators: name: Vincent, David P.
name: Vincent, David P.
Publisher: name: Unknown
Year: 1976
Subjects: Agricultural Finance

description: The results of the Henderson Poverty Inquiry's 1973 farm household income survey are discussed and supplemented by income distributions based on taxation returns from 1968/69 to 1972/73. It is concluded that much low income 'poverty' is temporary, being the product of the instability of agriculture. A case is made for the inclusion of wealth in farm and non-farm welfare comparisons. Proposals aimed at directly increasing incomes are discussed and hypothetical income distributions are presented to indicate the impact of the Henderson Inquiry's guaranteed income scheme on farm income distributions.
Co-planar spin-polarized light emitting diode
Creators: name: Kaestner, B.
name: Wunderlich, J.
name: Sinova, Jairo
name: Jungwirth, T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Studies of spin manipulation in semiconductors has benefited from the possibility to grow these materials in high quality on top of optically active III-V systems. The induced electroluminescence in these layered semiconductor heterostructures has been used for a reliable spin detection. In semiconductors with strong spin-orbit interaction, the sensitivity of vertical devices may be insufficient, however, because of the sepration of the spin aligner part and the spin detection region by one or more heterointerfaces and becuse of the short spin coherence length. Here we demostrate that higly sensitive spin detection can be achieved using a lateral arrangement of the spin polarized and optically active regions. Using our co-planar spin-polarized light emitting diodes we detect electrical field induced spin generation in a semiconductor heterojunction two-dimensional hole gas. The polarization results from spin asymmetric recombination of injected electrons with strongly SO coupled two-dimensional holes. The possibility to detect magnetized Co particles deposited on the co-planar diode structure is also demonstrated.
description: 8 pages, 3 figures
Time Evolution Of Cyclotron Line of Her X-1; A Detailed StatisticalAnalysis Including New ASTROSAT Data
Creators: name: Bala, S.
name: Bhattacharya, D.
name: Staubert, R.
name: Maitra, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The cyclotron line feature in the X-ray spectrum of the accretion powered pulsar Her X-1 has been observed and monitored for over three decades. The line energy exhibited a slow secular decline over the period 1995-2014, with a possible (not confirmed) indication of a reversal thereafter. Recent works have shown that the temporal evolution of the line energy may be modelled as a flattening after an earlier decrease until MJD 55400 ($\pm200)$. In this work, we present the results of ASTROSAT observations in the context of earlier data and offer a common interpretation through a detailed study of temporal and flux dependence. We find that the variation of the line energy does not support an upward trend but is consistent with the reported flattening after an earlier decrease until MJD $54487^{+515}_{-469}$.
description: Accepted in MNRAS
WELFARE IMPLICATIONS OF MORE ACCURATE RATIONAL FORECAST PRICES
Creators: name: Freebairn, John W.
name: Freebairn, John W.
Publisher: name: Unknown
Year: 1976
Subjects: Demand and Price Analysis

description: Models are constructed to assess the welfare effects for producers, consumers and society of producers using forecast prices based on more accurate estimates of variables causing shifts in the demand for and supply of commodities. The basic model is a stochastic cobweb model in which producers' forecast price is the rational forecast price. The model is extended for many commodities, for partial producer response to more accurate forecast prices, and to include stock holding. In terms of economic surplus, producers and consumers gain from more accurate estimates of demand shift variables, producers gain and consumers lose from more accurate estimates of supply shift variables, and in both cases there is a net society gain.
title: Полевая учебная геолого-съемочная практика: организация, методика проведения
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2021

description: Учебно-методическое пособие является оригинальной авторской разработкой, обобщающей большой опыт проведения учебных практик по структурной геологии и геокартированию со студентами очного обучения геолого-географического факультета в Хакасии. Подробно излагаются все этапы подготовки и проведения полевых и камеральных работ, раскрываются возможности горного компаса и GPS-приемника, рассматриваются способы фиксации полевых наблюдений в дневнике, выполнения привязок и зарисовок. Описаны приемы работы с топографической картой. Содержатся методические рекомендации по оформлению легенд и составлению стратиграфических колонок, разрезов. Наглядно показаны все этапы составления карты фактического материала и геологической карты. Даны подробные рекомендации по содержанию и оформлению геологического отчета. Имеется обширный список рекомендованной литературы, включая Интернет-ресурсы, а также 16 приложений по правильному оформлению разделов отчета и геологической карты. Все этапы работ иллюстрируются примерами, которые основаны на реальном геологическом материале учебного полигона базы практик ТГУ в Хакасии. Учебно-методическое пособие подготовлено с учетом требований Федерального государственного образовательного стандарта высшего образования. Предназначено для проведения полевой учебной геолого-съемочной практики для студентов, обучающихся по направлению подготовки 05.03.01 «Геология» (уровень бакалавриата), которая традиционно проходит после II курса в летний период и предусматривает 6–8 недель полевых и камеральных работ. Издание также может оказаться полезным школьникам, занимающимся в кружках «Юный геолог», и геологам-любителям.
Information/disturbance trade-off in continuous variable Gaussian systems
Creators: name: Genoni, Marco G.
name: Paris, Matteo G. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We address the information/disturbance trade-off for state-measurements on continuous variable Gaussian systems and suggest minimal schemes for implementations. In our schemes, the symbols from a given alphabet are encoded in a set of Gaussian signals which are coupled to a probe excited in a known state. After the interaction the probe is measured, in order to infer the transmitted state, while the conditional state of the signal is left for the subsequent user. The schemes are minimal, {\em i.e.} involve a single additional probe, and allow for the nondemolitive transmission of a continuous real alphabet over a quantum channel. The trade-off between information gain and state disturbance is quantified by fidelities and, after optimization with respect to the measurement, analyzed in terms of the energy carried by the signal and the probe. We found that transmission fidelity only depends on the energy of the signal and the probe, whereas estimation fidelity also depends on the alphabet size and the measurement gain. Increasing the probe energy does not necessarily lead to a better trade-off, the most relevant parameter being the ratio between the alphabet size and the signal width, which in turn determine the allocation of the signal energy.
description: 9 pages, 6 figures, revised version, title changed, accepted PRA
title: Полевая учебная геолого-съемочная практика
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование, Ай Пи Ар Медиа
Year: 2021

description: В учебно-методическом пособии подробно излагаются этапы подготовки и проведения полевых и камеральных работ, раскрываются возможности горного компаса и GPS-приемника, рассматриваются способы фиксации полевых наблюдений в дневнике, выполнения привязок и зарисовок. Описаны приемы работы с топографической картой, содержатся методические рекомендации по оформлению легенд и составлению стратиграфических колонок, разрезов. В издании также наглядно показаны все этапы составления карты фактического материала и геологической карты, даны подробные рекомендации по содержанию и оформлению геологического отчета. Учебно-методическое пособие подготовлено с учетом требований Федерального государственного образовательного стандарта среднего профессионального образования. Предназначено для студентов специальности 21.02.13 «Геологическая съемка, поиски и разведка месторождений полезных ископаемых», проходящих полевую учебную геолого-съемочную практику.
Preventing Denial of Service Attacks in IoT Networks through Verifiable Delay Functions
Creators: name: Attias, Vidal
name: Vigneri, Luigi
name: Dimitrov, Vassil
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Permissionless distributed ledgers provide a promising approach to deal with the Internet of Things (IoT) paradigm. Since IoT devices mostly generate data transactions and micropayments, distributed ledgers that use fees to regulate the network access are not an optimal choice. In this paper, we study a feeless architecture developed by IOTA and designed specifically for the IoT. Due to the lack of fees, malicious nodes can exploit this feature to generate an unbounded number of transactions and perform a denial of service attacks. We propose to mitigate these attacks through verifiable delay functions. These functions, which are non-parallelizable, hard to compute, and easy to verify, have been formulated only recently. In our work, we design a denial of service prevention mechanism which addresses network heterogeneity, limited node computational capabilities, and hardware-specific implementation optimizations. Verifiable delay functions have mostly been studied from a theoretical point of view, but little has been done in tangible applications. Hence, this paper can be considered as a pioneer work in the field, since it builds a bridge between this theoretical mathematical framework and a real-world problem.
title: DataCite’s Thriving Community: 3000 Repositories and Counting
Creators: name: Hirsch, Mary
Publisher: name: DataCite
Year: 2024

description: DataCite is a global community of organisations with a mission to connect research and advance knowledge. On 8 December 2023 we reached the important milestone of 3000 Repository accounts (“Repositories”) held by our Direct Members and Consortium Organizations. The journey to 3000 DataCite Repositories reflects the increasing importance of using Digital Object Identifiers (DOIs) to share diverse research outputs and resources. To put this in context, let’s take a step back and look at what we mean when we talk about a Repository.
An old quasar in a young dark energy-dominated universe?
Creators: name: Friaca, A.
name: Alcaniz, J. S.
name: Lima, J. A. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Dark energy is the invisible fuel that seems to drive the current acceleration of the Universe. Its presence, which is inferred from an impressive convergence of high-quality observational results along with some apparently sucessful theoretical predictions, is also supported by the current estimates of the age of the Universe from dating of local and high-$z$ objects. In this paper we test the viability of several dark energy scenarios in the light of the age estimates of the high redshift ($z=3.91$) quasar APM 08279+5255. Using a chemodinamical model for the evolution of spheroids, we first reevaluate its current estimated age, as given by Hasinger et al. (2002). An age of 2.1 Gyr is set by the condition that Fe/O abundance ratio (normalized to solar values) of the model reaches 3.3, which is the best fit value obtained in the above reference. It is shown that for the currently accepted value of the matter density parameter, most of the existing dark energy scenarios cannot accomodate this old high redshift object unless the Hubble parameter is as low as $H_o = 58$ $\rm{km.s^{-1}.Mpc^{-1}}$, as recently advocated by Sandage and collaborators. Even considering less stringent age limits, only cosmological models that predicts a considerably old Universe at high-$z$ can be compatible with the existence of this object. This is the case of the conventional $Λ$CDM scenario and some specific classes of brane world cosmologies.
description: 7 pages, 3 figures, uses mn.cls
Addendum to: Area density of localization-entropy I
Creators: name: Schroer, Bert
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This addendum adds some comments to a published paper (B. Schroer, Class. Quantum Grav. 23, (2006) 5227) on area density of localization-entropy. The setting of holography and localization-entropy is generalized to double cones and black holes with bifurcate Killing horizons. PACS: 11.10.-z, 11.25.Hf, 04.70.Dy
description: 14 pages latex, gain of clarity through improvements of formulations
FARM CREDIT POLICY IN THE EARLY STAGES OF AGRICULTURAL DEVELOPMENT
Creators: name: Penny, D.H.
name: Penny, D.H.
Publisher: name: Unknown
Year: 1968
Subjects: Agricultural Finance

description: This paper discusses the farm credit policies pursued by governments in low-income countries. It is argued that, in the early stages of development, peasant attitudes to debt are such that cheap credit is unlikely to be a useful growth stimulus. It is shown that the effectiveness of credit depends on the ability and willingness of the peasants to devote such additional funds to productive uses. The poor performance of many government rural credit programmes in low-income countries is discussed and criteria for a successful programme are presented.
Distributed Proximal Splitting Algorithms with Rates and Acceleration
Creators: name: Condat, Laurent
name: Malinovsky, Grigory
name: Richtárik, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We analyze several generic proximal splitting algorithms well suited for large-scale convex nonsmooth optimization. We derive sublinear and linear convergence results with new rates on the function value suboptimality or distance to the solution, as well as new accelerated versions, using varying stepsizes. In addition, we propose distributed variants of these algorithms, which can be accelerated as well. While most existing results are ergodic, our nonergodic results significantly broaden our understanding of primal-dual optimization algorithms.
Five-dimensional Supergravity Dual of a-Maximization
Creators: name: Tachikawa, Yuji
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the five-dimensional supergravity dual of the a-maximization under AdS5/CFT4 duality. We firstly show that the a-maximization is mapped to the attractor equation in five-dimensional gauged supergravity, and that the trial a-function is the inverse cube of the superpotential of the five-dimensional theory. There is also a version of a-maximization in which one extremizes over Lagrange multipliers enforcing the anomaly-free condition of the R-symmetry. We identify the supergravity dual of this procedure, and show how the Lagrange multipliers appearing in the supergravity description naturally correspond to the gauge coupling of the superconformal field theory.
description: 18 pages; v2: published version
A MODEL OF THE NEW ZEALAND SHEEP INDUSTRY
Creators: name: Rayner, A.C.
name: Rayner, A.C.
Publisher: name: Unknown
Year: 1968
Subjects: Livestock Production/Industries

description: The paper presents a model of the New Zealand Sheep Industry which predicts animal numbers in various sex/age categories. The explanatory variables used are the prices of the end products of the industry and time, to represent technological change. Prices are found to have a significant, though delayed, effect on farmers' stock decisions. Furthermore, the significance of time demonstrates improvements in some forms of animal husbandry. The relative failure of the model's latest predictions emphasizes the importance of irrational optimism in the industry.