cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Analysis of the data on spin density matrix elements for $γp \to K^{*+}Λ$
Creators: name: Wei, Neng-Chang
name: Wang, Ai-Chao
name: Huang, Fei
name: Li, De-Min
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In our previous work [Phys. Rev. C {\bf 96}, 035206 (2017)], the high-precision differential cross-section data for $γp \to K^{*+}Λ$ reported by the CLAS Collaboration has been analyzed within an effective Lagrangian approach. It was found that apart from the $t$-channel $K$, $K^*$, and $κ$ exchanges, the $u$-channel $Λ$, $Σ$, and $Σ^*$ exchanges, the $s$-channel $N$ exchange, and the interaction current, one needs to introduce at least two nucleon resonances in the $s$ channel in constructing the reaction amplitudes to describe the cross-section data. One of the needed resonances is $N(2060)5/2^-$, and the other one could be one of the $N(2000)5/2^+$, $N(2040)3/2^+$, $N(2100)1/2^+$, $N(2120)3/2^-$, and $N(2190)7/2^-$ resonances. In this paper, we further include in our analysis the data on spin density matrix elements for $K^*$ meson reported recently by the CLAS Collaboration, with the purpose being to impose further constraints on extracting the resonance contents and to gain a better understanding of the reaction mechanism. It turns out that with the new data on spin density matrix elements taken into account, only the set with the $N(2060)5/2^-$ and $N(2000)5/2^+$ resonances among those five possible solutions extracted from the analysis of the differential cross-section data can satisfactorily describe the data on both the differential cross sections and the spin density matrix elements. Further analysis shows that this reaction is dominated by the $t$-channel $K$ exchange and $s$-channel $N(2060)5/2^-$ and $N(2000)5/2^+$ exchanges.
description: 9 figures, 11 pages
title: Radis Oléifère :
title: Principes directeurs pour la conduite de l’examen de la distinction, de l’homogénéité et de la stabilité.
titleType: Subtitle
Creators: name: International Union For The Protection Of New Varieties Of Plants,
Publisher: name: International Union for the Protection of New Varieties of Plants,
Year: 0
Subjects: Group identity.
New Varieties of Plants
Fodder Raddish

description: Ces principes directeurs (“principes directeurs d’examen”) visent à approfondir les principes énoncés dans l’introduction générale (document TG/1/3) et dans les documents TGP qui s’y rapportent afin de donner des indications concrètes détaillées pour l’harmonisation de l’examen de la distinction, de l’homogénéité et de la stabilité (DHS) et, en particulier, à identifier des caractères convenant à l’examen DHS et à la production de descriptions variétales harmonisées.
Using dissolved gas analysis to investigate the performance of permeable reactive barriers
Creators: name: Williams, Randi Lee
Publisher: name: University of British Columbia
Year: 2009

description: The strongly reducing nature of permeable reactive barrier (PRB) treatment materials can lead to gas production, potentially resulting in the formation of gas bubbles and ebullition. For this work degassing in the saturated zone of PRB systems due to the production of gases (primarily CO₂ and CH₄) is investigated using the depletion of Aland N₂, naturally present non-reactive gases, in order to identify, confirm, and possibly quantify chemical and physical processes occurring. Dissolved gas sampling and analysis were conducted at three PRB sites designed for the treatment of groundwater contaminated by mining and industrial activities: the Nickel Rim Mine Organic Carbon PRB Site (Site I), the Campbell Mine Zero-Valent Iron (Fe⁰)/ Organic Carbon Test Cell PRB (Site II), and the Columbia Nitrogen Fe⁰/ Organic Carbon Mixed PRB Site (Site III). At Site I, residence times within the PRB are sufficiently long to allow gas production and degassing. A simple four-gas degassing model was used to analyze the data set, and the results indicate that sulfate reduction is by far the main process of organic carbon consumption within the barrier. The data provided additional information to delineate rates of microbially mediated sulfate reduction and to determine slow and fast flow zones within the barrier. Degassing was incorporated into reactive transport simulations for Site I in order to model 8 years of barrier operation. The simulations adequately reproduce observed dissolved gas trends, although no information on the volume change due to bubble formation or the fate of the trapped gas could be obtained. At Site II, residence times were short and the dissolved gas data could be used primarily as a transport tracer. Zones of preferential and of low flow could be identified within the PRB. At Site III, the strong resemblance of water composition upgradient and downgradient of the PRB suggested that residence times are long and that there is little flow through the PRB. The dissolved gas data could primarily be used as a reaction tracer. The data suggested that gas production and reaction rates are relatively insignificant in the barrier system. The success and failures at Sites I-III could be used to create a set of criteria under which dissolved gas analysis is useful for PRB systems. Treatment material composition, dissolved gas composition in the groundwater influent to the PRB, and residence times through the PRB are important factors to consider.
Distance distribution of binary codes and the error probability of decoding
Creators: name: Barg, Alexander
name: McGregor, Andrew
Publisher: name: arXiv
Year: 2004
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We address the problem of bounding below the probability of error under maximum likelihood decoding of a binary code with a known distance distribution used on a binary symmetric channel. An improved upper bound is given for the maximum attainable exponent of this probability (the reliability function of the channel). In particular, we prove that the ``random coding exponent'' is the true value of the channel reliability for code rate $R$ in some interval immediately below the critical rate of the channel. An analogous result is obtained for the Gaussian channel.
description: 16 pages, 3 figures. Submitted to IEEE Transactions on Information Theory. The revision was done for a final journal version (it may still be different from the published version)
Conclusive Evidence on the Benefits of Temporal Disaggregation to Improve the Precision of Time Series Model Forecasts
Creators: name: Ramirez, Octavio A.
name: Ramirez, Octavio A.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Research Methods/ Statistical Methods
subject: Data Aggregation
subject: Efficient Forecasting

description: Simulation methods are used to measure the expected differentials between the Mean Square Errors of the forecasts from models based on temporally disaggregated versus aggregated data. This allows for novel comparisons including long-order ARMA models, such as those expected with weekly data, under realistic conditions where the parameter values have to be estimated. The ambivalence of past empirical evidence on the benefits of disaggregation is addressed by analyzing four different economic time series for which relatively large sample sizes are available. Because of this, a sufficient number of predictions can be considered to obtain conclusive results from out-of-sample forecasting contests. The validity of the conventional method for inferring the order of the aggregated models is revised.
Statewide Water Planning: The Georgia Experience
Creators: name: Mullen, Jeffrey D.
name: Mullen, Jeffrey D.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Resource /Energy Economics and Policy
subject: residential water use
subject: water management
subject: water planning
subject: irrigation

description: Several states in the southeast have acknowledged the need for statewide water planning but have yet to act. In contrast, Georgia is on the cusp of completing the Georgia Comprehensive Statewide Water Management Plan (SWMP). The SWMP provides for resource assessments, forecasts, and regional water planning. Over the past 3 years, an extensive effort has been made to implement the SWMP. This article describes the planning process undertaken in Georgia. Several of the recommended practices are also highlighted and critiqued with respect to their potential to affect aggregate water use in the state.
Optoelectronic control of spin dynamics at near-THz frequencies in magnetically doped quantum wells
Creators: name: Myers, R. C.
name: Ku, K. C.
name: Li, X.
name: Samarth, N.
name: Awschalom, D. D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We use time-resolved Kerr rotation to demonstrate the optical and electronic tuning of both the electronic and local moment (Mn) spin dynamics in electrically gated parabolic quantum wells derived from II-VI diluted magnetic semiconductors. By changing either the electrical bias or the laser energy, the electron spin precession frequency is varied from 0.1 to 0.8 THz at a magnetic field of 3 T and at a temperature of 5 K. The corresponding range of the electrically-tuned effective electron g-factor is an order of magnitude larger compared with similar nonmagnetic III-V parabolic quantum wells. Additionally, we demonstrate that such structures allow electrical modulation of local moment dynamics in the solid state, which is manifested as changes in the amplitude and lifetime of the Mn spin precession signal under electrical bias. The large variation of electron and Mn-ion spin dynamics is explained by changes in magnitude of the sp−d exchange overlap.
description: 4 pages, 3 figures
title: Нормативно-правовые аспекты обеспечения информационной безопасности инфокоммуникационных сетей
Creators: name: ELS IPR BOOKS
Publisher: name: Московский технический университет связи и информатики
Year: 2007

description: В учебном пособии изложены основные сведения о нормативно-правовом обеспечение информационной безопасности инфокоммуникационных сетей. Рассматриваются основные направления развития российского и зарубежного законодательств в сфере информационной безопасности и роль государственных органов в обеспечении информационной безопасности.
A review on the mobile applications developed for COVID-19: An exploratory analysis
Creators: name: Islam, Muhammad Nazrul
name: Islam, Iyolita
name: Munim, Kazi MD.
name: Islam, A. K. M. Najmul
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: The objective of this research is to explore the existing mobile applications developed for the COVID-19 pandemic. To obtain this research objective, firstly the related applications were selected through the systematic search technique in the popular application stores. Secondly, data related to the app objectives, functionalities provided by the app, user ratings, and user reviews were extracted. Thirdly, the extracted data were analyzed through the affinity diagram, noticing-collecting-thinking, and descriptive analysis. As outcomes, the review provides a state-of-the-art view of mobile apps developed for COVID-19 by revealing nine functionalities or features. It revealed ten factors related to information systems design characteristics that can guide future app design. The review outcome highlights the need for new development and further refinement of the existing applications considering not only the revealed objectives and their associated functionalities, but also revealed design characteristics such as reliability, performance, usefulness, supportive, security, privacy, flexibility, responsiveness, ease of use, and cultural sensitivity.
description: 11 pages, 3 figures, 4 tables
Additional file 1 of Herbal medicine use among patients with viral and non-viral Hepatitis in Uganda: prevalence, patterns and related factors
Creators: name: Nsibirwa, Sara
name: Anguzu, Godwin
name: Kamukama, Sam
name: Ponsiano Ocama
name: Nankya-Mutyoba, Joan
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 1: This contains the survey questions administered to the study participants.
HAVZANING SATH O`ZGARISHINI NOANIQ MANTIQ BOSHQARUVCHISI YORDAMIDA BOSHQARISH TIZIMI
Creators: name: Ishnazarov O.X1, Nabiyev M.B2 O`zbekiston Fanlar Akademiyasi. Energetika muommolari instituti, texnika fanlari doktori, proffessor1 Toshkent shahar Olmazor tumani. "Olmazor Shams Building" MCHJ qurilish kompaniyasi ish boshqaruvchisi.
Publisher: name: Zenodo
Year: 2024

description: Hozirgi kunda nasos stansiyasida havzadagi suv isroflari ko`payib bormoqda. Havzaning suv sathini boshqarishda noaniq mantiq boshqaruvchisidan foydalangan holda boshqargan holatda suv isrofini kamaytirishga erishish mumkin
Time and space reconstruction in optical, non-imaging, scintillator-based particle detectors
Creators: name: Galbiati, Cristiano
name: McCarty, Kevin
Publisher: name: arXiv
Year: 2005
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A new generation of ultra-low-background scintillator-based detectors aims to study solar neutrinos and search for dark matter and new physics beyond the Standard Model. These optical, non-imaging detectors generally contain a "fiducial volume" from which data are accepted, and an "active buffer region" where there are higher levels of radioactive contaminants. Events are observed in real time. To distinguish between events occurring in the two regions, it is imperative that event position reconstruction be well-understood. The object of this paper is the study of the reconstruction, in time and space, of scintillation events in detectors of large dimensions. A general, likelihood-based method of position reconstruction for this class of detectors is presented. The potential spatial resolution of the method is then evaluated. It is shown that for a spherical detector with a large number N of photosensitive elements that detect photons, the expected spatial resolution at the center of the detector is given by delta a ~ (c sigma / n) sqrt(3/N), where sigma is the width of the scintillator time response function and n is the index of refraction in the medium. However, if light in the detector has a scattering mean free path much less than the detector radius R, the resolution instead becomes (R/2) sqrt(3/N). Finally, a formalism is introduced to deal with the common case in which only the arrival time of the first photon to arrive at each photosensitive element can be measured.
description: 24 pages, 3 figures; to be submitted to Nucl. Instr. Methods A
A Two-Stage Bayesian Semiparametric Model for Novelty Detection with Robust Prior Information
Creators: name: Denti, Francesco
name: Cappozzo, Andrea
name: Greselin, Francesca
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Novelty detection methods aim at partitioning the test units into already observed and previously unseen patterns. However, two significant issues arise: there may be considerable interest in identifying specific structures within the novelty, and contamination in the known classes could completely blur the actual separation between manifest and new groups. Motivated by these problems, we propose a two-stage Bayesian semiparametric novelty detector, building upon prior information robustly extracted from a set of complete learning units. We devise a general-purpose multivariate methodology that we also extend to handle functional data objects. We provide insights on the model behavior by investigating the theoretical properties of the associated semiparametric prior. From the computational point of view, we propose a suitable $\boldsymbolξ$-sequence to construct an independent slice-efficient sampler that takes into account the difference between manifest and novelty components. We showcase our model performance through an extensive simulation study and applications on both multivariate and functional datasets, in which diverse and distinctive unknown patterns are discovered.
Challenges and Opportunities for Water of the Rio Grande
Creators: name: Rister, M. Edward
name: Sturdivant, Allen W.
name: Lacewell, Ronald D.
name: Michelsen, Ari M.
name: Rister, M. Edward
name: Sturdivant, Allen W.
name: Lacewell, Ronald D.
name: Michelsen, Ari M.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Resource /Energy Economics and Policy
subject: agriculture
subject: agricultural economics
subject: conservation
subject: irrigation
subject: natural resources
subject: renewable resources
subject: resources
subject: water

description: The Rio Grande has headwaters in Colorado, flows through New Mexico, and serves as the United States.–Mexico border in Texas, emptying into the Gulf of Mexico. Snow melt in Colorado and northern New Mexico constitutes the water river supply for New Mexico and the El Paso region, whereas summer monsoonal flow from the Rio Conchos in Mexico and tributaries, including the Pecos River, provides the Rio Grande flow for southern Texas. The region is mostly semiarid with frequent long-term drought periods but is also characterized by a substantial irrigated agriculture sector and a rapidly growing population. International treaties and interstate compacts provide the rules for allocation of Rio Grande waters between the United States and Mexico and among Colorado, New Mexico, and Texas. Water rights in Texas have been adjudicated, but the adjudication process was based on a wet period; hence, contemporary Rio Grande water rights are overallocated. Issues related to the waters of the Rio Grande include: frequent drought, increased municipal demand caused by a rapidly increasing population, supply variability, underdeliveries from Mexico, increasing salinity, inefficient delivery systems, health issues of the population, no economic/financial incentives for farmers to conserve, and water is not typically priced for efficiency. Stakeholders are interested in identifying solutions to limited water supplies while there is increasing demand. There are several activities in place addressing Rio Grande-related water needs, including enhancing delivery distribution efficiency of raw water, conversion of rights from agriculture to urban, improving both agricultural irrigation field distribution and urban use efficiency, developments in desalination, and litigation. None of the solutions are easy or inexpensive, but there are encouraging cooperative attitudes between stakeholders.
Additional file 1 of Population structure of five native sheep breeds of Sweden estimated with high density SNP genotypes
Creators: name: Rochus, Christina Marie
name: Jonas, Elisabeth
name: Johansson, Anna M.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1: Figure S1. Map of the origin of Swedish local breeds.
Topology and Staggered Fermion Action Improvement
Creators: name: Wong, Kit Yan
name: Woloshyn, R. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: It is conventional wisdom that staggered fermions do not feel gauge field topology. However, the response of staggered fermion eigenmodes to the topology of the gauge field can depend quite sensitively on the way in which the staggered fermion action is improved. We study this issue using a variety of improved staggered quark actions. We observe that the separation between the ``would be'' zero modes and the non-chiral modes increases with the level of improvement. This enables the ``zero modes'' to be identified unambiguously. The distribution of the remaining non-chiral modes is compared with the predictions of Random Matrix Theory. Satisfactory agreement is obtained.
description: Lattice 2004 (topology)
A contemporaneous infrared flash from a long gamma-ray burst: an echo from the central engine
Creators: name: Blake, C. H.
name: Bloom, J. S.
name: Starr, D. L.
name: Falco, E. E.
name: Skrutskie, M.
name: Fenimore, E. E.
name: Duchene, G.
name: Szentgyorgyi, A.
name: Hornstein, S.
name: Prochaska, J. X.
name: McCabe, C.
name: Ghez, A.
name: Konopacky, Q.
name: Stapelfeldt, K.
name: Hurley, K.
name: Campbell, R.
name: Kassis, M.
name: Chaffee, F.
name: Gehrels, N.
name: Barthelmy, S.
name: Cummings, J. R.
name: Hullinger, D.
name: Krimm, H. A.
name: Markwardt, C. B.
name: Palmer, D.
name: Parsons, A.
name: McLean, K.
name: Tueller, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The explosion that results in a cosmic gamma-ray burst (GRB) is thought to produce emission from two physical processes -- the activity of the central engine gives rise to the high-energy emission of the burst through internal shocking and the subsequent interaction of the flow with the external environment produces long-wavelength afterglow. While afterglow observations continue to refine our understanding of GRB progenitors and relativistic shocks, gamma-ray observations alone have not yielded a clear picture of the origin of the prompt emission nor details of the central engine. Only one concurrent visible-light transient has been found and was associated with emission from an external shock. Here we report the discovery of infrared (IR) emission contemporaneous with a GRB, beginning 7.2 minutes after the onset of GRB 041219a. Our robotic telescope acquired 21 images during the active phase of the burst, yielding the earliest multi-colour observations of any long-wavelength emission associated with a GRB. Analysis of an initial IR pulse suggests an origin consistent with internal shocks. This opens a new possibility to study the central engine of GRBs with ground-based observations at long wavelengths.
description: Accepted to Nature on March 1, 2005. 9 pages, 4 figures, nature12.cls and nature1.cls files included. This paper is under press embargo until print publication
Space qualification of ultrafast laser written integrated waveguide optics
Creators: name: Piacentini, Simone
name: Vogl, Tobias
name: Corrielli, Giacomo
name: Lam, Ping Koy
name: Osellame, Roberto
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Satellite-based quantum technologies represent a possible route for extending the achievable range of quantum communication, allowing the construction of worldwide quantum networks without quantum repeaters. In space missions, however, the volume available for the instrumentation is limited, and footprint is a crucial specification of the devices that can be employed. Integrated optics could be highly beneficial in this sense, as it allows for the miniaturization of different functionalities in small and monolithic photonic circuits. In this work, we report on the qualification of waveguides fabricated in glass by femtosecond laser micromachining for their use in a low Earth orbit space environment. In particular, we exposed different laser written integrated devices, such as straight waveguides, directional couplers, and Mach-Zehnder interferometers, to suitable proton and $γ$-ray irradiation. Our experiments show that no significant changes have been induced to their characteristics and performances by the radiation exposure. Our results, combined with the high compatibility of laser-written optical circuits to quantum communication applications, pave the way for the use of laser-written integrated photonic components in future satellite missions.
Discussion: Water Scarcity–Future Uses and Implications for Policy
Creators: name: Willis, David B.
name: Willis, David B.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Resource /Energy Economics and Policy
subject: conservation
subject: regulation
subject: water policy

description: The three articles presented at this invited session examine the evolution of water policy planning and the implementation of regulatory tools to achieve water conservation objectives. Two articles focus on Texas water issues and the third focuses on the Georgia planning experience. Each article clearly illustrates the value of sharing advances in hydrologic and economic modeling with local community stakeholder groups to facilitate the credible development of regional water management plans. Moreover, each article hints that stronger regulatory tools may be needed to achieve long-run policy objectives.
Additional file 4 of Analysis of movement recursions to detect reproductive events and estimate their fate in central place foragers
Creators: name: Picardi, Simona
name: Smith, Brian J.
name: Boone, Matthew E.
name: Frederick, Peter C.
name: Cecere, Jacopo G.
name: Rubolini, Diego
name: Serra, Lorenzo
name: Pirrello, Simone
name: Borkhataria, Rena R.
name: Basille, Mathieu
Publisher: name: figshare
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional file 4. Sensitivity analysis on buffer size for breeding-site detection.
MPEC 2024-T299 : 2024 TY17
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TY17

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.
Policies to Facilitate Conversion of Millions of Acres to the Production of Biofuel Feedstock
Creators: name: Epplin, Francis M.
name: Haque, Mohua
name: Epplin, Francis M.
name: Haque, Mohua
Publisher: name: Unknown
Year: 2011
Subjects: subject: Resource /Energy Economics and Policy
subject: biomass
subject: bio-oil
subject: cellulosic
subject: drop-in fuels
subject: ethanol
subject: land-lease contract
subject: lignocellulosic
subject: pyrolysis
subject: switchgrass

description: First-generation grain ethanol biofuel has affected the historical excess capacity problem in U.S. agriculture. Second-generation cellulosic ethanol biofuel has had difficulty achieving cost-competitiveness. Third-generation drop-in biofuels are under development. If lignocellulosic biomass from perennial grasses becomes the feedstock of choice for second- and third-generation biorefineries, an integrated system could evolve in which a biorefinery directly manages feedstock production, harvest, storage, and delivery. Modeling was conducted to determine the potential economic benefits from an integrated system. Relatively low-cost public policies that could be implemented to facilitate economic efficiency are proposed.
N=1 super Yang-Mills on a (3+1) dimensional transverse lattice with one exact supersymmetry
Creators: name: Harada, Motomichi
name: Pinsky, Stephen
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We formulate ${\cal N}$=1 super Yang-Mills theory in 3+1 dimensions on a two dimensional transverse lattice using supersymmetric discrete light cone quantization in the large-$N_c$ limit. This formulation is free of fermion species doubling. We are able to preserve one supersymmetry. We find a rich, non-trivial behavior of the mass spectrum as a function of the coupling $g\sqrt{N_c}$, and see some sort of "transition" in the structure of a bound state as we go from the weak coupling to the strong coupling. Using a toy model we give an interpretation of the rich behavior of the mass spectrum. We present the mass spectrum as a function of the winding number for those states whose color flux winds all the way around in one of the transverse directions. We use two fits to the mass spectrum and the one that has a string theory justification appears preferable. For those states whose color flux is localized we present an extrapolated value for $m^2$ for some low energy bound states in the limit where the numerical resolution goes to infinity.
description: 23(+2 for v3) pages, 19 figures; v2: a footnote added; v3: an appendix, comments, references added. The version to appear PRD
Channels, measurements and post-selection in quantum thermodynamics
Creators: name: Purves, Tom
name: Short, Tony
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyse the benefit, in terms of extracting work, of having a single use of a quantum channel or measurement in quantum thermodynamics. This highlights a connection between unital and catalytic channels, and some subtleties concerning the conditional work cost of implementing a measurement given that a certain result was obtained. We also consider post-selected measurements, and show that any non-trivial post-selection leads to an unbounded work benefit.
description: 18 Pages
Modeling Interactions of a Carbon Offset Policy and Biomass Markets on Crop Allocations
Creators: name: Popp, Michael P.
name: Nalley, Lawton Lanier
name: Popp, Michael P.
name: Nalley, Lawton Lanier
Publisher: name: Unknown
Year: 2011
Subjects: subject: Farm Management
subject: Resource /Energy Economics and Policy
subject: carbon offsets
subject: irrigation restriction
subject: pine
subject: switchgrass

description: Arkansas cropping pattern changes at the county level were estimated under various scenarios involving a likely decline in water availability, the development of a biomass market for renewable energy production, and the potential of a widely used carbon offset market. These scenarios are analyzed separately and jointly to determine which of the three scenarios is expected to have the largest impact on net (emissions – sequestration) greenhouse gas (GHG) emissions, renewable fuels feedstock supply, and producer net returns. Land use choices included conventional crops of rice, cotton, soybean, corn, grain sorghum, pasture, and hay. Specialty crops of loblolly pine and switchgrass were modeled for their respective potential to sequester carbon and provide feedstock for renewable fuels. GHG emissions were measured across an array of production methods for each crop. Soil and lumber carbon sequestration was based on yield, soil texture, and tillage. Using the concept of additionality in which net GHG emissions reductions compared with a baseline level were rewarded at a carbon price of $15 per ton along with $40 per dry ton of switchgrass, baled at field side, revealed that irrigation restrictions had the largest negative impact on producer net returns while also lowering net GHG emissions. Introducing the higher carbon price led to minor positive income ramifications and greatly reduced net GHG emissions. Biomass production returns were higher than the returns from the carbon offset market, however, at the cost of greater net GHG emissions. The combination of all factors led to a significant increase in switchgrass and pine production. In this scenario, approximately 16% of the total income losses with lower nonirrigated yields were offset with returns from biomass and carbon markets. Lowest statewide net GHG emissions were achieved given least irrigation fuel use and a greater than 15% increase in carbon sequestration with pine and switchgrass.
Towards defining reference materials for extracellular vesicle size, concentration, refractive index and epitope abundance
Creators: name: Welsh, Joshua A.
name: van der Pol, Edwin
name: Bettin, Britta A.
name: Carter, David R. F.
name: Hendrix, An
name: Lenassi, Metka
name: Langlois, Marc-André
name: Llorente, Alicia
name: van de Nes, Arthur S.
name: Nieuwland, Rienk
name: Tang, Vera
name: Wang, Lili
name: Witwer, Kenneth W.
name: Jones, Jennifer C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: Accurate characterization of extracellular vesicles (EVs) is critical to explore their diagnostic and therapeutic applications. As the EV research field has developed, so too have the techniques used to characterize them. The development of reference materials is required for the standardization of these techniques. This work, initiated from the ISEV 2017 Biomarker Workshop in Birmingham, UK, and with further discussion during the ISEV 2019 Standardization Workshop in Ghent, Belgium, sets out to elucidate which reference materials are required and which are currently available to standardize commonly used analysis platforms for characterizing EV size, concentration, refractive index, and epitope expression. Due to their predominant use, a particular focus is placed on the optical methods nanoparticle tracking analysis and flow cytometry.
description: 30 pages, 6 figures, 2 tables
Transit time of a freely-falling quantum particle in a background gravitational field
Creators: name: Davies, P C W
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using a model quantum clock, I evaluate an expression for the time of a non-relativistic quantum particle to transit a piecewise geodesic path in a background gravitational field with small spacetime curvature (gravity gradient), in the case that the apparatus is in free fall. This calculation complements and extends an earlier one (Davies 2004) in which the apparatus is fixed to the surface of the Earth. The result confirms that, for particle velocities not too low, the quantum and classical transit times coincide, in conformity with the principle of equivalence. I also calculate the quantum corrections to the transit time when the de Broglie wavelengths are long enough to probe the spacetime curvature. The results are compared with the calculation of Chaio and Speliotopoulos (2003), who propose an experiment to measure the foregoing effects.
description: Research paper, three figures
Additional file 3 of Analysis of movement recursions to detect reproductive events and estimate their fate in central place foragers
Creators: name: Picardi, Simona
name: Smith, Brian J.
name: Boone, Matthew E.
name: Frederick, Peter C.
name: Cecere, Jacopo G.
name: Rubolini, Diego
name: Serra, Lorenzo
name: Pirrello, Simone
name: Borkhataria, Rena R.
name: Basille, Mathieu
Publisher: name: figshare
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional file 3. Package nestR vignette.
Geometrical constraints on the formation and melt of ridged sea ice
Creators: name: Amundrud, Trisha Lynne
Publisher: name: University of British Columbia
Year: 2009

description: The Arctic ice pack consists of flat level ice, open water, and large ridge structures. During winter, ice thickens and is compacted into ridges, increasing the Arctic ice volume. In summer, ridging is accompanied by ice melt processes, which act to decrease ice volume. Current ice-atmosphere-ocean models cannot reproduce the evolution of the ridged ice fraction, suggesting that ridging or melt may be inappropriately parameterized. To increase our understanding of ridged ice evolution, this thesis investigates the factors that constrain the ridging and melt processes. A unique ice draft distribution model is developed to simulate ice evolution in the Beaufort Sea, allowing direct comparison with observations of ice draft by moored sonar. Conventional ridging algorithms used in a 24-day simulation were found to overestimate the amount of very thick ice. Observations of level ice reveals that 75% of all ice floes are too small to create ridges of maximum draft. In addition, observed ridges have cusp-shaped keels with concave flanks, containing less thick ice and increased amounts of thinner ice than the triangular shaped keels assumed by most models. Including the observed constraints into the redistribution model produces ridged ice in agreement with observations, confirming the importance of the geometrical constraints to the creation of ridged ice. During the melt season, simulations of ice ablation in the Beaufort Sea indicate that level ice melt processes cannot reproduce the observed enhanced melt rates of ridged ice. A semi-quantitative model for internal melt due to flow through the porous keel is developed and an enhanced internal melt rate estimated. The rate of melting within the porous structure of the ridge keel is up to an order of magnitude greater than the rate of melting at the surface of level ice floes. Including the internal melt within the ice draft distribution model can reproduce the enhanced melt of ridged ice and is thus essential for the accurate simulation of the evolution of ridged ice. Similar to the geometric constraints on ice ridging, the internal geometry of ridge keels plays a large role in the annual evolution of the thickest sea ice.
Incentives Matter: Assessing Biofuel Policies in the South
Creators: name: Miller, J. Corey
name: Coble, Keith H.
name: Miller, J. Corey
name: Coble, Keith H.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Resource /Energy Economics and Policy
subject: alternative energy
subject: biofuels
subject: energy policy

description: As a result of the increase in the real cost of fossil fuel-based energy in recent years, federal and state governments have taken a more active role in energy policy by creating incentives to develop alternative sources of energy, including biofuels. However, policymakers often become focused on the specific type of energy and not the energy services consumers ultimately value. The lack of recognition of energy as a commodity results in policies that ignore the characteristics of the associated markets: easy entry and exit, no barriers to entry, and sensitivity to changes in supply and demand. Consequently, energy industries may fail to arise because entrepreneurs must be able to account for all costs and earn—at a minimum—a competitive return on the investment. This article evaluates the options available to policymakers related to biofuels, which are of particular concern to the South, and includes an assessment of the knowledge base on which policy decisions are made.
Investigation of the rotation-activity relation for a sample of SuperWASP and ASAS-SN field stars
Creators: name: Thiemann, Heidi B.
name: Norton, Andrew J.
name: Kolb, Ulrich C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It is well established that late-type main-sequence stars display a relationship between X-ray activity and the Rossby number, $Ro$, the ratio of rotation period to the convective turnover time. This manifests itself as a saturated regime (where X-ray activity is constant) and an unsaturated regime (where X-ray activity anti-correlates with the Rossby number). However, this relationship breaks down for the fastest rotators. We cross-correlated SuperWASP visually classified photometric light curves and ASAS-SN automatically classified photometric light curves with XMM-Newton X-ray observations to identify 3,178 stars displaying a photometrically defined rotational modulation in their light curve and corresponding X-ray observations. We fitted a power-law to characterise the rotation-activity relation of 900 main-sequence stars. We identified that automatically classified rotationally modulated light curves are not as reliable as visually classified light curves for this work. We found a power-law index in the unsaturated regime of G- to M-type stars of $β=-1.84\pm0.18$ for the SuperWASP catalogue, in line with the canonical value of $β=-2$. We find evidence of supersaturation in the fastest rotating K-type stars, with a power-law index of $β_{s}=1.42\pm0.26$.
description: Accepted for publication in PASA. 14 pages, 12 figures, 3 tables
The Galaxy Distribution Function from the 2MASS Survey
Creators: name: Sivakoff, Gregory R.
name: Saslaw, William C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We determine the spatial distribution function of galaxies from a wide range of samples in the 2MASS survey. The results agree very well with the form of the distribution predicted by the theory of cosmological gravitational many-body galaxy clustering. On large scales we find a value of the clustering parameter b = 0.867 +/- 0.026, in agreement with b = 0.83 +/- 0.05 found previously for the Pisces-Perseus supercluster. We measure b(theta) as a function of scale, since this is a powerful test of the applicability of computer simulations. The results suggest that when galaxies clustered they were usually surrounded by individual, rather than by communal haloes.
description: Astrophysical Journal, accepted: 14 pages with 23 embedded reduced resolution Postscript figures & 2 tables
Comparing the Reliability of Discrete and Continuous Measures in Clinical Practice: A Meta-Analysis
Creators: name: Balling, Caroline
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Clinical Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Empirical interest in the structural nature of psychopathology has increased exponentially in recent decades. Historically, it was assumed that mental disorders were discrete categorical phenomena, but there exists a long-standing literature evidencing the dimensional nature of psychopathology. The present review aims to update and extend Markon et al.’s 2011 meta-analysis published in Psychological Bulletin, through which the authors concluded that continuous conceptualization confers a 15% increase in reliability compared to a categorical approach. Indeed, the most recent study included in this review was published in 2008, meaning over a decade of relevant research has occurred since. Further, of the 26 studies that used a clinical sample in the Markon et al. review, only four studies included constructs other than personality pathology. The present review aims to improve representation across the spectrum psychopathology. The methodological extensions of the present review aim to increase the relevance of previous findings for clinical practice and implementation science. Key differences with the present meta-analytic approach include: 1) only incorporating clinical samples; 2) the application of different or expanded moderators; and 3) a targeted examination of inter-rater reliability across sources (e.g., comparing reliability of therapist ratings compared to client or informant ratings) and methods (e.g., scale versus structured clinical interview). With these expansions, the present review aims to establish the potential costs of categorical thinking in treatment settings.
Grey Correlation between Agricultural Input Factors and Regional GDP Growth in Anhui Province
Creators: name: Men, Ke-Pei
name: Zhao, Kai
name: Men, Ke-Pei
name: Zhao, Kai
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Anhui Province
subject: Agricultural input factors
subject: Grey correlation
subject: GDP
subject: China

description: In order to analyze the relation between agricultural input factors and economic growth in Anhui Province, the evaluation index system of agricultural input is built from the perspectives of subject, object and tools based on grey system theory. The government investment in agricultural science and technology is selected as the index of labor subject, that is labor-related index（X1）, the total sown area of crops is selected as the index of labor object（X2）, the investment in rural water and electricity construction is chosen as the index of tools（X3）, and the GDP of Anhui Province is denoted by X0. According to the relevant data, the improved model of grey correlation analysis is adopted to calculate the correlation among the investment in agricultural water and electricity construction, total sown area of crops, government investment in agricultural science and technology, and the GDP in Anhui Province during 2004-2008. Results show that investment in agricultural science and technology contributes the largest to GDP growth, the increase and change of the total sown area and the investment in rural water and electricity construction have a weak correlation with GDP, they are in a less consistent development trend. On this basis, the government of Anhui Province further proposes to increase the investment in agricultural science and technology, enhance the protection of arable lands, keep the total sown area of crops, and properly maintain the rural water and electricity construction.
Transplanckian energy production and slow roll inflation
Creators: name: Danielsson, Ulf H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we investigate how the energy density due to a non-standard choice of initial vacuum affects the expansion of the universe during inflation. To do this we introduce source terms in the Friedmann equations making sure that we respect the relation between gravity and thermodynamics. We find that the energy production automatically implies a slow rolling cosmological constant. Hence we also conclude that there is no well defined value for the cosmological constant in the presence of sources. We speculate that a non-standard vacuum can provide slow roll inflation on its own.
description: 16 pages, 2 figures, version 2: minor corrections to section 4 and references added
Closed-loop three-level charged quantum battery
Creators: name: Dou, Fu-Quan
name: Wang, Yuan-Jin
name: Sun, Jian-An
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum batteries are energy storage or extract devices in a quantum system. Here, we present a closed-loop quantum battery by utilizing a closed-loop three-state quantum system in which the population dynamics depends on the three control fields and associated phases. We investigate the charging process of the closed-loop three-level quantum battery. The charging performance is greatly improved due to existence of the third field in the system to form a closed-contour interaction. Through selecting an appropriate the third control field, the maximum average power can be increased, even far beyond the most ideal maximum power value of non-closed-loop three-level quantum battery (corresponding to the most powerful charging obtainable with minimum quantum speed limit time and the maximum charging energy). We study the effect of global driving-field phase on the charging process and find the maximum extractable work (`ergotropy') and charging power vary periodically under different control field, with a period of $2π$. Possible experimental implementation in nitrogen-vacancy spin is discussed.