cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Agribusiness: Political Economy and Market Structure - Toward a Structure for Agribusiness
Creators: name: Johnson, R.W.M.
name: Petrey, L.A.
name: Schroder, William R.
name: Johnson, R.W.M.
name: Petrey, L.A.
name: Schroder, William R.
Publisher: name: Unknown
Year: 1996
Subjects: Agribusiness

description: This issue of the Review contains three papers from the February conference on agribusiness structures and market behaviour. This introduction serves to introduce the papers and sets out a review of recent literature contributions in the marketing and agribusiness area. The review identifies the characteristic market structure of agribusiness as a transformation of farm-based commodities to many differentiated and finished products in consumer markets. This market channel or chain exhibits many of the features of competitive markets due to the many firms involved but also has features which cut across competitive theory such as monopoly buying, lack of full information, and backward integration. In the wider view, agricultural industries interact with other institutions and polities, and must take account of these forces in management and planning. The papers, which follow, analyse the government agribusiness interface from a public choice point of view, marketing structure and information from a market failure point of view, and marketing structure and alliances from a product development point of view.
Evaluating Quality Improvement in Nonhomogeneous Agricultural Commodities: The Case of Australian Beef
Creators: name: Voon, Thomas Jan P.
name: Voon, Thomas Jan P.
Publisher: name: Unknown
Year: 1996
Subjects: Livestock Production/Industries

description: This paper develops conceptual and empirical frameworks for assessing the economic benefits from agricultural research which enhances the amount of a desirable characteristic in each unit of a heterogeneous commodity. The commodity is assumed to comprise two or more joint products accruable in fixed proportion. Quality improvement is perceived as an increase in the proportion of a joint product with more of a more-valued characteristic and, as such, is modelled as a shift in the supply curve of a joint product rather than via a shift in commodity demand. A proxy variable is constructed to measure an intertemporal quality change and to estimate the associated size of the supply shift. An application of the framework to the Australian beef industry indicates that the per unit amount of the characteristic 'freshness' in beef has increased over the last two decades. Substantial social benefits can be obtained by research which enhances the quality of Australian beef carcasses. A larger share of the total benefits accrue to beef producers.
Gap Solitons in Periodic Discrete Nonlinear Schroedinger Equations
Creators: name: Pankov, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: It is shown that the periodic DNLS, with cubic nonlinearity, possesses gap solutions, i. e. standing waves, with the frequency in a spectral gap, that are exponentially localized in spatial variable. The proof is based on the linking theorem in combination with periodic approximations.
The Industrial Organisation of the Australian Agricultural Economics Society
Creators: name: Ahmadi-Esfahani, Fredoun Z.
name: Brakey, John
name: Ahmadi-Esfahani, Fredoun Z.
name: Brakey, John
Publisher: name: Unknown
Year: 1996
Subjects: Industrial Organization
Teaching/Communication/Extension/Profession

description: There has recently been much soul searching among US agricultural economists concerning future directions of the American Agricultural Economics Association. In Australia, however, little direct attention has been paid to the Australian Agricultural Economics Society. Utilising an industrial organisation framework, this paper seeks to investigate issues pertaining to the structure, conduct and performance of the Society. To that end, a survey of members was recently undertaken. This information, along with the views of Past Presidents of the Society, minutes of previous Annual General Meetings and student feedback on the future direction of the profession, is used as the main database for the analysis. The results suggest that, while demand for the product mix is generally strong, supply constraints are impinging on the performance of the Society. Alternative approaches to overcoming these constraints are explored.
How human drivers control their vehicle
Creators: name: Wagner, Peter
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: The data presented here show that human drivers apply a discrete noisy control mechanism to drive their vehicle. A car-following model built on these observations, together with some physical limitations (crash-freeness, acceleration), led to non-Gaussian probability distributions in the speed difference and distance which are in good agreement with empirical data. All model parameters have a clear physical meaning and can be measured. Despite its apparent complexity, this model is simple to understand and might serve as a starting point to develop even quantitatively correct models.
description: 5 pages, 6 figures, submitted to PRL
The role of AGN on the structure, kinematics and evolution of ETGs in the Horizon simulations
Creators: name: Rosito, M. S.
name: Pedrosa, S. E.
name: Tissera, P. B.
name: Chisari, N. E.
name: Dominguez-Tenreiro, R.
name: Dubois, Y.
name: Peirani, S.
name: Devriendt, J.
name: Pichon, C.
name: Slyz, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Feedback processes play a fundamental role in the regulation of the star formation (SF) activity in galaxies and, in particular, in the quenching of early-type galaxies (ETGs) as has been inferred by observational and numerical studies of Lambda CDM models. At z = 0, ETGs exhibit well-known fundamental scaling relations, but the connection between them and the physical processes shaping ETG evolution remains unknown.This work aims at studying the impact of the energetic feedback due to active galactic nuclei (AGN) on the formation and evolution of ETGs.We focus on assessing the impact of AGN feedback on the evolution of the mass-plane and the fundamental plane (FP, defined by using mass surface density) as well as on morphology, kinematics, and stellar age across the FP.The Horizon-AGN and Horizon-noAGN cosmological hydrodynamical simulations were performed with identical initial conditions and including the same physical processes except for the activation of the AGN feedback in the former. We select a sample of central ETGs from both simulations using the same criteria and exhaustively study their SF activity, kinematics, and scaling relations for z <= 3. We find that Horizon-AGN ETGs identified at z = 0 follow the observed fundamental scaling relations (mass-plane, FP, mass-size relation) and qualitatively reproduce kinematic features albeit conserving a rotational inner component with a mass fraction regulated by the AGN feedback. AGN feedback seems to be required to reproduce the bimodality in the spin parameter distribution reported by observational works and the mass-size relation (with more massive galaxies having older stellar populations (SPs), larger sizes, and being slower rotators). We study the evolution of the fundamental relations with redshift, finding .Abridged
description: 18 pages, 17 figures, Accepted in A&A
Strategic Alliances and Marketing Cooperatives: a Lamb Industry Case Study
Creators: name: Farrell, Terence C.
name: Tozer, Peter R.
name: Farrell, Terence C.
name: Tozer, Peter R.
Publisher: name: Unknown
Year: 1996
Subjects: Agribusiness

description: Producer cooperatives and strategic alliances could assist lamb producers and market efficiency by improving price signals through product grading. Opportunities exist for first and second cross lamb producers to achieve price premiums by forming intersectoral linkages with processors/wholesalers and retailers. Producer cooperatives enable producers to supply consistent quantities of high quality lambs to satisfy the market requirements of the wholesalers/retailers within an alliance. Alternatively, opportunistic lamb suppliers who are constrained by environmental or cost factors may not be able to derive similar price premiums.
ANEXO I ENTREVISTAS TFM.docx
Creators: name: Diez, Ana
Publisher: name: figshare
Year: 2021
Subjects: subject: 200101 Communication Studies
subject: FOS: Media and communications

description: Redesign a communications plan to raise awareness and sensitize public opinion about the social, cultural and economic benefits that the pedestrianization process of the Historic Center of Lima
Radiation of the Inner Horizon of the Reissner-Nordström Black Hole
Creators: name: Peltola, A.
name: Makela, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Despite of over thirty years of research of the black hole thermodynamics our understanding of the possible role played by the inner horizons of Reissner-Nordström and Kerr-Newman black holes in black hole thermodynamics is still somewhat incomplete: There are derivations which imply that the temperature of the inner horizon is negative and it is not quite clear what this means. Motivated by this problem we perform a detailed analysis of the radiation emitted by the inner horizon of the Reissner-Nordström black hole. As a result we find that in a maximally extended Reissner-Nordström spacetime virtual particle-antiparticle pairs are created at the inner horizon of the Reissner-Nordström black hole such that real particles with positive energy and temperature are emitted towards the singularity from the inner horizon and, as a consequence, antiparticles with negative energy are radiated away from the singularity through the inner horizon. We show that these antiparticles will come out from the white hole horizon in the maximally extended Reissner-Nordström spacetime, at least when the hole is near extremality. The energy spectrum of the antiparticles leads to a positive temperature for the white hole horizon. In other words, our analysis predicts that in addition to the radiation effects of black hole horizons, also the white hole horizon radiates. The black hole radiation is caused by the quantum effects at the outer horizon, whereas the white hole radiation is caused by the quantum effects at the inner horizon of the Reissner-Nordström black hole.
description: 22 pages, 6 figures. References added, discussion slightly expanded in Secs. I and V. To appear in IJMPD
WIND FRAME STATE ESTIMATION AND GUST REJECTION USING BIO-INSPIRED FLOW SENSORS
Creators: name: Dean, William
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Aerospace engineering
subject: Bio-inspired sensing
subject: Disturbance rejection
subject: Flow speed
subject: Robust control
subject: State estimation

description: Growing demand for robust, low-computation sensing and control of micro-air

vehicles motivates development of new technology. A MEMS wind

ow sensor has

been developed in-house, drawing inspiration from setae structures seen in biology.

The goal of this work is to validate the use of these new sensors for wind frame state

estimation and gust rejection. Three of these sensors were mounted on the surface

of a fuselage-like structure to estimate wind speed, angle of attack, and sideslip

angle. Static linear and nonlinear estimation model structures and parameters were

designed with time-domain equation-error system identication techniques. For

small angles, state estimation was demonstrated for both estimation schemes. Gust

rejection control was implemented to improve state regulation in the presence of a

lateral gust stream. A robust  controller was implemented and displayed lateral

velocity and path perturbation attenuation.
Hydraulic and electric control of cell spheroids
Creators: name: Duclut, Charlie
name: Prost, Jacques
name: Jülicher, Frank
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We use a theoretical approach to examine the effect of a radial fluid flow or electric current on the growth and homeostasis of a cell spheroid. Such conditions may be generated by a drain of micrometric diameter. To perform this analysis, we describe the tissue as a continuum. We include active mechanical, electric, and hydraulic components in the tissue material properties. We consider a spherical geometry and study the effect of the drain on the dynamics of the cell aggregate. We show that a steady fluid flow or electric current imposed by the drain could be able to significantly change the spheroid long-time state. In particular, our work suggests that a growing spheroid can systematically be driven to a shrinking state if an appropriate external field is applied. Order-of-magnitude estimates suggest that such fields are of the order of the indigenous ones. Similarities and differences with the case of tumors and embryo development are briefly discussed.
description: 28 pages, 6 figures
A new derivation of Luscher F-term and fluctuations around the giant magnon
Creators: name: Heller, Michal P.
name: Janik, Romuald A.
name: Lukowski, Tomasz
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we give a new derivation of the generalized Luscher F-term formula from a summation over quadratic fluctuations around a given soliton. The result is very general providing that S-matrix is diagonal and is valid for arbitrary dispersion relation. We then apply this formalism to compute the leading finite size corrections to the giant magnon dispersion relation coming from quantum fluctuations.
description: 15 pages, no figures; v2: added assumption on diagonal scattering and a section on generalizations; v3: minor changes, version accepted for publication in JHEP
Economics of Integrated Catchment Management
Creators: name: Marshall, Graham R.
name: Wall, Lisa M.
name: Jones, Randall E.
name: Marshall, Graham R.
name: Wall, Lisa M.
name: Jones, Randall E.
Publisher: name: Unknown
Year: 1996
Subjects: Resource /Energy Economics and Policy

description: Integrated Catchment Management (ICM) can be viewed as an institutional instrument designed to ameliorate losses of economic efficiency that have arisen due to incomplete specification of the privileges and restrictions attached to property rights. If applied appropriately ICM can facilitate the emergence of a market in which parties disadvantaged by incomplete specification attempt to bribe those advantaged, with the aim of obtaining the latter's agreement to more complete specification. The instrument provides potential for transactions costs of bargaining to be reduced substantially by reducing the number of parties eligible to participate in, and installing the state as broker and arbiter of, the bargaining process. Participation by sub-catchment committees and their constituents in the bargaining process can also, by fostering peer pressure, reduce the transactions costs of monitoring and obtaining compliance with any bargains successfully negotiated. However, the extent to which transactions costs are reduced in practice, and bargains are entered into and complied with as a result, depends on how successfully ICM principles are applied in practice.
Assessing Accuracy of Livestock Market Reporters: Some Evidence on Pigs in Victoria
Creators: name: Alston, Julian M.
name: Nguyen, S.T.
name: Tunstall, Allan W.
name: Alston, Julian M.
name: Nguyen, S.T.
name: Tunstall, Allan W.
Publisher: name: Unknown
Year: 1986
Subjects: Land Economics/Use

description: This paper explores the hypothesis that livestock market reporters tend to err towards the middle of the actual range when estimating carcass weight and fat depth. Trial data for pigs support the hypothesis and indicate that reporters' estimates may be significantly biased in some extreme weight and fat classes even when the average errors taken across all classes are trivial. Significant distortions in the reported premiums or discounts between some fat and weight classes are implied by the errors in estimating fat and weight.
Association of IceCube neutrinos with radio sources observed at Owens Valley and Metsähovi Radio Observatories
Creators: name: Hovatta, T.
name: Lindfors, E.
name: Kiehlmann, S.
name: Max-Moerbeck, W.
name: Hodges, M.
name: Liodakis, I.
name: Lahteenmaki, A.
name: Pearson, T. J.
name: Readhead, A. C. S.
name: Reeves, R. A.
name: Suutarinen, S.
name: Tammi, J.
name: Tornikoski, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Identifying the most likely sources for high-energy neutrino emission has been one of the main topics in high-energy astrophysics ever since the first observation of high-energy neutrinos by the IceCube Neutrino Observatory. Active galactic nuclei with relativistic jets, also known as blazars, have been considered to be one of the main candidates because of their ability to accelerate particles to high energies. We study the connection between radio emission and IceCube neutrino events using data from the Owens Valley Radio Observatory (OVRO) and Metsähovi Radio Observatory blazar monitoring programs. We identify sources in our radio monitoring sample that are positionally consistent with IceCube high-energy neutrino events. We estimate their mean flux density and variability amplitudes around the neutrino arrival time, and compare these with values from random samples to establish the significance of our results. We find radio source associations within our samples with 15 high-energy neutrino events detected by IceCube. Nearly half of the associated sources are not detected in the $γ$-ray energies, but their radio variability properties and Doppler boosting factors are similar to the $γ$-ray detected objects in our sample, meaning that they could still be potential neutrino emitters. We find that the number of strongly flaring objects in our statistically complete OVRO samples is unlikely to be a random coincidence (at $2σ$ level). Based on our results, we conclude that although it is clear that not all neutrino events are associated with strong radio flaring blazars, observations of large-amplitude radio flares in a blazar at the same time as a neutrino event are unlikely to be a random coincidence.
description: Accepted for publication in A&A (18 pages, 6 figures). Accepted version (v2) includes changes to methodology and associations, but the main conclusions are unaffected. V3 minor fix to numbers in Sect. 3.3.1. and some language edits
How to search for multiple messengers -- a general framework beyond two messengers
Creators: name: Veske, Doğa
name: Márka, Zsuzsa
name: Bartos, Imre
name: Márka, Szabolcs
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Quantification of the significance of a candidate multi-messenger detection of cosmic events is an emerging need in the astrophysics and astronomy communities. In this paper we show that a model-independent optimal search does not exist, and we present a general Bayesian method for the optimal model-dependent search, which is scalable to any number and any kind of messengers, and applicable to any model. In the end, we demonstrate it through an example for a joint gravitational wave, high-energy neutrino, short gamma-ray burst event search; which has not been examined heretofore.
description: 8 pages
An Unusual System of HI Filaments near WR 5 and HD 17603
Creators: name: Knee, Lewis B. G.
name: Wallace, Bradley J.
name: Normandeau, Magdalen
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the discovery of a system of unusual HI filaments which appear to be associated with molecular clouds in the Perseus spiral arm of our Galaxy. We investigate the hypothesis that this system is the result of a directed flow of dissociated gas from clouds trapped within an extended wind flow from massive stars. The Wolf-Rayet star WR 5 and the OIb(f) star HD 17603 are identified as candidate driving sources. However, an examination of this hypothesis within the context of the theory of mass-loaded winds shows that these two stars alone cannot account for the energetics and kinematics of the required spherically symmetric wind flow. Unless the apparent association between HI, molecular gas, and stars is an accidental one, we suggest that other as-yet unidentified stars must have contributed to driving the filaments.
description: 26 pages + 5 figures, accepted for publication in the Astrophysical Journal
Proc, Alex (hrsg.): Jahrbuch der Orthodoxie
Creators: name: Basdekis, Athanasios
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 26 Nr. 1 (1977): Ökumenische Rundschau, Band 26, Heft 1
D8.11 – Policy and Market Reform Recommendations - Final Version
Creators: name: Tual, R.
name: Cuno, S.
name: Antón, M.
name: Valalaki, K.
name: Bacher, P.
name: Aranda, J.
name: Cipriano, J.
name: Pañella, P.
Publisher: name: Zenodo
Year: 2021
Subjects: energy cooperatives
energy community
demand response
demand-side flexibility
regulatory recommendations
self-consumption
dynamic pricing
aggregation
data privacy
data sovereignty

description: The FLEXCoop project has gathered researchers, ICT and energy companies together with energy cooperatives actors in order to develop and demonstrate new demand-side flexibility (DSF) tools and related business models for energy cooperatives. FLEXCoop’ s aim has been to contribute to the democratisation of the energy system by providing citizens initiatives with the tools to take a more active role in the energy system and open new services enabling them to accelerate the decarbonisation of our energy system. FLEXCoop has been a unique forum to discuss the role of citizens in the new energy landscape open by new technologies and opportunities created by the Clean Energy Package. In this context, FLEXCoop policy and market recommendations address a broad range of issues.
 They first address the role of citizen initiatives in the context of the Clean Energy Package and of the emergence of new actors: the “energy communities” (Section 2).
 They highlight the complementary rules needed to unleash the potential of demand-side flexibility services across the energy value chain. This includes the whole set of services enabled by DSF: (collective) self-consumption, balancing reserves, congestion management and wholesale market valorisation towards balance responsible parties (Sections 3). It also includes making accessible existing flexible resources by facilitating their connection through communication standards (Section 4).
 The third key challenge for addressed here concerns the introduction of “big data”-based services from several perspectives. It includes the need for clear rules to facilitate commercial activities (Section 5); the need to safeguard individual rights through enhanced data protection (Section 6) and enable citizens collectives to anticipate the consequences of these new digital services (Section 7).
 Finally, these recommendations are concluded by some key initiatives which could further support research in demand-side flexibility area (Section 8).
Time-optimal quantum transformations with bounded bandwidth
Creators: name: Allan, Dan
name: Hörnedal, Niklas
name: Andersson, Ole
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we derive sharp lower bounds, also known as quantum speed limits, for the time it takes to transform a quantum system into a state such that an observable assumes its lowest average value. We assume that the system is initially in an incoherent state relative to the observable and that the state evolves according to a von Neumann equation with a Hamiltonian whose bandwidth is uniformly bounded. The transformation time depends intricately on the observable's and the initial state's eigenvalue spectrum and the relative constellation of the associated eigenspaces. The problem of finding quantum speed limits consequently divides into different cases requiring different strategies. We derive quantum speed limits in a large number of cases, and we simultaneously develop a method to break down complex cases into manageable ones. The derivations involve both combinatorial and differential geometric techniques. We also study multipartite systems and show that allowing correlations between the parts can speed up the transformation time. In a final section, we use the quantum speed limits to obtain upper bounds on the power with which energy can be extracted from quantum batteries.
description: 19 pages, 4 figures, links to references corrected, accepted in Quantum
Fidelity, quantum computations and Wilson loop
Creators: name: Kuvshinov, V. I.
name: Buividovich, P. V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: General properties of quantum systems which interact with stochastic environment are studied with a strong emphasis on the role of physical symmetries. The similarity between the fidelity which is used to characterize the stability of such a systems and the Wilson loop in QCD is demonstrated, and the fidelity decay rates are derived. The consequences of existence of the symmetry group on the statistical properties of the system are analyzed for various physical systems - a simple quantum mechanical system, holonomic quantum computer and Yang-Mills fields.
Automatic measurement and modelling of contact sounds
Creators: name: Richmond, Joshua Lee
Publisher: name: University of British Columbia
Year: 2009

description: Sound plays an important role in our everyday interactions with the environment. Sound models enable virtual objects to produce realistic sounds. The manual creation of sound models from real objects is tedious and inaccurate. A brief review of sound models is presented, with details of a sound model for contact sounds. This thesis documents the development of a system for the automatic acquisition of sound models. The system is composed of four modules: a sound acquisition device, an asynchronous data server, an algorithm for computing prototypical sound models and an adaptive sampling algorithm. A description of each module and its requirements is included. Implementations of each module are tested and explained. Results of typical data collections are discussed. Sound models for a calibration object, brass vase, plastic speaker and toy drum are constructed using the system. Comparisons of the sound models to the original recordings are displayed for each object. Under ideal circumstances the system produces accurate sound models. Environmental noise, however, decreases the accuracy of the estimation technique. An evaluation of the parameter estimation algorithm confirms this observation. Many opportunities exist for future work on this system. Ideas for improvements and future investigations are suggested.
Did Galaxy Assembly and Supermassive Black-Hole Growth go hand-in-hand?
Creators: name: Windhorst, R. A.
name: Cohen, S. H.
name: Straughn, A. N.
name: Ryan, R. E.
name: Hathi, N. P.
name: Jansen, R. A.
name: Koekemoer, A. M.
name: Pirzkal, N.
name: Xu, C.
name: Mobasher, B.
name: Malhotra, S.
name: Strolger, L.
name: Rhoads, J. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper, we address whether the growth of supermassive black-holes has kept pace with the process of galaxy assembly. For this purpose, we first searched the Hubble Ultra Deep Field (HUDF) for "tadpole galaxies", which have a knot at one end and an extended tail. They appear dynamically unrelaxed -- presumably early-stage mergers -- and make up ~6% of the field galaxy population. Their redshift distribution follows that of field galaxies, indicating that -- if tadpole galaxies are indeed dynamically young -- the process of galaxy assembly generally kept up with the reservoir of field galaxies as a function of epoch. Next, we present a search for HUDF objects with point-source components that are optically variable (at the >~3.0 sigma level) on timescales of weeks--months. Among 4644 objects to i_AB=28.0 mag (10 sigma), 45 have variable point-like components, which are likely weak AGN. About 1% of all field objects show variability for 0.1 < z < 4.5, and their redshift distribution is similar to that of field galaxies. Hence supermassive black-hole growth in weak AGN likely also kept up with the process of galaxy assembly. However, the faint AGN sample has almost no overlap with the tadpole sample, which was predicted by recent hydrodynamical numerical simulations. This suggests that tadpole galaxies are early-stage mergers, which likely preceded the ``turn-on'' of the AGN component and the onset of visible point-source variability by >~1 Gyr.
description: 9 pages, Latex2e requires 'elsart' and 'elsart3' (included), 10 postscript figures. To appear in the Proceedings of the Leiden Workshop on "QSO Host Galaxies: Evolution and Environment", eds. P.D. Barthel & D.B. Sanders (New Astron. Rev., 2006)
Present and Future Experiments in Non-equilibrium Reactor Antineutrino Energy Spectrum
Creators: name: Kopeikin, V. I.
name: Mikaelyan, L. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Considerable efforts that have been undertaken in the recent years in low energy antineutrino experiments require further systematic investigations in line of reactor antineutrino spectroscopy as a metrological basis of these experiments. We consider some effects associated with the non-equilibrium of reactor antineutrino radiation and residual antineutrino emission from spent reactor fuel in contemporary antineutrino experiments.
description: 7 pages, 5 figures; Talk presented at International Conference NANP-2005, Dubna, Russia, Jun.-2005; Submitted to Phys. Atom. Nucl
HI intensity mapping with the MIGHTEE survey: power spectrum estimates
Creators: name: Paul, Sourabh
name: Santos, Mario G.
name: Townsend, Junaid
name: Jarvis, Matt J.
name: Maddox, Natasha
name: Collier, Jordan D.
name: Frank, Bradley S.
name: Taylor, Russ
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Intensity mapping (IM) with neutral hydrogen is a promising avenue to probe the large scale structure of the Universe. In this paper, we demonstrate that using the 64-dish MeerKAT radio telescope as a connected interferometer, it is possible to make a statistical detection of HI in the post-reionization Universe. With the MIGHTEE (MeerKAT International GHz Tiered Extragalactic Exploration) survey project observing in the L-band ($856 < ν< 1712$ MHz, $z < 0.66$), we can achieve the required sensitivity to measure the HI IM power spectrum on quasi-linear scales, which will provide an important complementarity to the single-dish IM MeerKAT observations. We present a purpose-built simulation pipeline that emulates the MIGHTEE observations and forecast the constraints that can be achieved on the HI power spectrum at $z = 0.27$ for $k > 0.3$ $\rm{Mpc}^{-1}$ using the foreground avoidance method. We present the power spectrum estimates with the current simulation on the COSMOS field that includes contributions from HI, noise and point source models constructed from the observed MIGHTEE data. The results from our \textit{visibility} based pipeline are in qualitative agreement to the already available MIGHTEE data. This paper demonstrates that MeerKAT can achieve very high sensitivity to detect HI with the full MIGHTEE survey on quasi-linear scales (signal-to-noise ratio $> 7$ at $k=0.49$ $\rm{Mpc}^{-1}$) which are instrumental in probing cosmological quantities such as the spectral index of fluctuation, constraints on warm dark matter, the quasi-linear redshift space distortions and the measurement of the HI content of the Universe up to $z\sim 0.5$.
description: 13 pages, 8 figures, accepted for publication in MNRAS
EVALUATION OF CURRENT SOIL CONSERVATION STRATEGIES
Creators: name: Easter, K. William
name: Cotner, Melvin L.
name: Easter, K. William
name: Cotner, Melvin L.
Publisher: name: Unknown
Year: 1981
Subjects: Land Economics/Use

description: The paper is divided into four broad selections. The first section spells out the major reasons for public action in regard to soil conservation. The second section briefly discusses the current soil conservation investments both public and private. The third section evaluates the current strategies, ranging from cost-sharing to regulation, in terms of economic, political, and administration effectiveness. Finally, the concluding section suggest what we have learned from the evaluation and what needs to be done so that future evaluations will have a firmer analytic basis.
A MODEL OF OPTIMAL PUBLIC INVESTMENT IN U.S. AGRICULTURAL RESEARCH
Creators: name: Fox, Glenn
name: Fox, Glenn
Publisher: name: Unknown
Year: 1985
Subjects: Research and Development/Tech Change/Emerging Technologies

description: This paper examines three claims of inefficient allocation of public expenditure in publicly funded agricultural research in the United States. It has been argued by analysts of research policy that: 1. The overall level of public investment in agricultural research is less than what would be socially optimal. 2. The present composition of public research investment is excessively myopic in that too little basic research is performed relative to the level of applied research. 3. The allocation of research resources among commodities is inconsistent with economic efficiency. A nonlinear optimal growth model of the U.S. economy was employed to test these propositions. Strong support was found for the claim that the overall level of investment has been adequate. No support was found for the contention that basic research has been relatively underfunded compared to applied research. Weak support was found for the view that crop research has suffered from more acute underfunding than has livestock research.
On simple ideal hyperbolic Coxeter polytopes
Creators: name: Felikson, Anna
name: Tumarkin, Pavel
Publisher: name: arXiv
Year: 2005
Subjects: subject: Metric Geometry (math.MG)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 51M20, 20F55, 51F15

description: A polytope in the hyperbolic space $\H^n$ is called an {\it ideal polytope} if all its vertices belong to the boundary of $\H^n$. We prove that no simple ideal Coxeter polytope exist in $\H^n$ for $n>8$.
description: v2: the paper is slightly reorganized; many typos and some errors corrected. 15 pages, to appear in Izv. Math
A High-Resolution View of Fast Radio Burst Host Environments
Creators: name: Mannings, Alexandra G.
name: Fong, Wen-fai
name: Simha, Sunil
name: Prochaska, J. Xavier
name: Rafelski, Marc
name: Kilpatrick, Charles D.
name: Tejos, Nicolas
name: Heintz, Kasper E.
name: Bhandari, Shivani
name: Day, Cherie K.
name: Deller, Adam T.
name: Ryder, Stuart D.
name: Shannon, Ryan M.
name: Tendulkar, Shriharsh P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present Hubble Space Telescope (HST/WFC3) ultraviolet and infrared observations of eight fast radio burst (FRB) host galaxies with sub-arcsecond localizations, including the hosts of three known repeating FRBs. We quantify their spatial distributions and locations with respect to their host galaxy light distributions, finding that they occur at moderate host normalized-offsets of 1.4 $r_e$ ([0.6,2.1] $r_e$; 68% interval), occur on fainter regions of their hosts in terms of IR light, but overall trace the radial distribution of IR light in their galaxies. The FRBs in our tested distribution do not clearly trace the distributions of any other transient population with known progenitors, and are statistically distinct from the locations of LGRBs, H-poor SLSNe, SGRBs, and Ca-rich transients. We further find that most FRBs are not in regions of elevated local star formation rate and stellar mass surface densities in comparison to the mean global values of their hosts. We also place upper limits to the IR flux at the FRB positions of $m_{\rm IR}\gtrsim\!24.8-27.6$~AB~mag, constraining both satellite and background galaxies to luminosities well below the host luminosity of FRB121102. We find that 5/8 FRB hosts exhibit clear spiral arm features in IR light, and that the positions of all well-localized FRBs located in such hosts are consistent with their spiral arms, although not on their brightest regions. Our results do not strongly support the primary progenitor channel of FRBs being connected either with the most massive (stripped-envelope) stars, or with events which require kicks and long delay times (neutron star mergers).
description: 21 pages, 9 figures, Accepted for publication in ApJ
Long-term Open Access strategy for Angola: raising awareness of its benefits
Creators: name: United Nations Educational, Scientific and Cultural Organization
name: Ministério Do Ensino Superior, Ciência
name: Redalyc-Universidad Autónoma Del Estado De México
name: AmeliCA
name: Universidade Óscar Ribas
Publisher: name: Zenodo
Year: 2022
Subjects: Open Access
Angola
Africa
Trainning on scientific communication
Angola's scientific activity
Open Access benefits

description: Work derived from the collaborative project among Redalyc UAEM, AmeliCA, MESCTI and U. Óscar Ribas funded by UNESCO for the development of an Open Access strategy in Angola. Vol. 25 of 38
Responsible Authorship: TU Wien Good Practice Guidance
Creators: name: Sánchez, Alicia Fátima Gómez
name: Rauhala, Marjo
Publisher: name: Zenodo
Year: 2021
Subjects: Authorship
CRediT
Contributorship
Responsible Authorship

description: This guidance document on responsible authorship describes the many aspects of authorship and provides recommendations for determining how to assign credit in publications involving multiple authors. Besides authorship also non-author contributorship are discussed, and relevant criteria are presented. Recommendations of some good practices are given.
Gaßmann, Günther (hrsg.): Neue transkonfessionelle Bewegungen
Creators: name: Boeckler, Richard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 26 Nr. 1 (1977): Ökumenische Rundschau, Band 26, Heft 1
Gorschenek, Günter (hrsg.): Katholiken und ihre Kirche in der Bundesrepublik Deutschland ...
Creators: name: Kg.
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 26 Nr. 1 (1977): Ökumenische Rundschau, Band 26, Heft 1
TextGrids year 4
Creators: name: Ríos Ochoa, Romero
name: Skilton, Amalia Horan
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2016
Subjects: subject: ore
subject: Máíhĩ̵̀kì language

description: All TextGrids associated with the recordings of Romero Ríos Ochoa made during year 4
Loop quantum gravity, signature change, and the no-boundary proposal
Creators: name: Bojowald, Martin
name: Brahma, Suddhasattwa
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Covariant models of loop quantum gravity generically imply dynamical signature change at high density. This article presents detailed derivations that show the fruitful interplay of this new kind of signature change with wave-function proposals of quantum cosmology, such as the no-boundary and tunneling proposals. In particular, instabilities of inhomogeneous perturbations found in a Lorentzian path-integral treatment are naturally cured. Importantly, dynamical signature change does not require Planckian densities when off-shell instantons are relevant.
description: 26 pages, v2: additional references
Fast Edge Corrected Measurement of the Two-Point Correlation Function and the Power Spectrum
Creators: name: Szapudi, István
name: Pan, Jun
name: Prunet, Simon
name: Budavári, Tamás
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present two related techniques to measure the two-point correlation function and the power spectrum with edge correction in any spatial dimensions. The underlying algorithm uses fast Fourier transforms for calculating the two-point function with an heuristically weighted edge corrected estimator. Once the correlation function is measured, we estimate the power spectrum via numerical integration of the Hankel transform connecting the two. We introduce an efficient numerical technique based on Gauss-Bessel-quadrature and double exponential transformation. This, combined with our, or any similar, two-point function estimator leads to a novel edge corrected estimator for power spectra. The pair of techniques presented are the Euclidean analogs of those developed and widely used in cosmic microwave background research for spherical maps.
description: 4 pages, 2 figures, submitted to ApJL
Presentation of a simple machine learning framework for semi-automated screening in systematic review or meta-analysis of aging and longevity research studies
Creators: name: Lalović, Marko
Publisher: name: Zenodo
Year: 2021
Subjects: Automated screening
Literature prioritization
Machine learning
Text mining

description: Presentation slides of a research project to develop a machine learning framework to semi-automate citation screening in systematic reviews and meta-analyses. The framework was developed and evaluated in context of aging and longevity research studies. Outline: Background Related Work Our Contribution Methods Results
description: 15 pages, 5 figures, 3 tables
Constraining dark energy interacting models with WMAP
Creators: name: Olivares, German
name: Atrio-Barandela, Fernando
name: Pavon, Diego
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We determine the range of parameter space of an interacting quintessence (IQ) model that best fits the luminosity distance of type Ia supernovae data and the recent WMAP measurements of Cosmic Microwave Background temperature anisotropies. Models in which quintessence decays into dark matter provide a clean explanation for the coincidence problem. We focus on cosmological models of zero spatial curvature. We show that if the dark energy (DE) decays into cold dark matter (CDM) at a rate that brings the ratio of matter to dark energy constant at late times, the supernovae data are not sufficient to constrain the interaction parameter. On the contrary, WMAP data constrain it to be smaller than $c^2 < 10^{-2}$ at the $3σ$ level. Accurate measurements of the Hubble constant and the dark energy density, independent of the CMB data, would support/disprove this set of models.
description: 4 pages, 3 figures. Uses AIP style. To be published in the AIP Proceedings of the XXVIII Spanish Relativity Meeting
Data-driven topology optimization of spinodoid metamaterials with seamlessly tunable anisotropy
Creators: name: Zheng, Li
name: Kumar, Siddhant
name: Kochmann, Dennis M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: We present a two-scale topology optimization framework for the design of macroscopic bodies with an optimized elastic response, which is achieved by means of a spatially-variant cellular architecture on the microscale. The chosen spinodoid topology for the cellular network on the microscale (which is inspired by natural microstructures forming during spinodal decomposition) admits a seamless spatial grading as well as tunable elastic anisotropy, and it is parametrized by a small set of design parameters associated with the underlying Gaussian random field. The macroscale boundary value problem is discretized by finite elements, which in addition to the displacement field continuously interpolate the microscale design parameters. By assuming a separation of scales, the local constitutive behavior on the macroscale is identified as the homogenized elastic response of the microstructure based on the local design parameters. As a departure from classical FE$^2$-type approaches, we replace the costly microscale homogenization by a data-driven surrogate model, using deep neural networks, which accurately and efficiently maps design parameters onto the effective elasticity tensor. The model is trained on homogenized stiffness data obtained from numerical homogenization by finite elements. As an added benefit, the machine learning setup admits automatic differentiation, so that sensitivities (required for the optimization problem) can be computed exactly and without the need for numerical derivatives - a strategy that holds promise far beyond the elastic stiffness. Therefore, this framework presents a new opportunity for multiscale topology optimization based on data-driven surrogate models.
description: 26 pages, 16 figures
Invariant representation of image functions under gamma correction and similarity transformations
Creators: name: Siebert, Andreas
Publisher: name: University of British Columbia
Year: 2009

description: This work focuses on image retrieval and recognition in environments where the images are subject to a non-linear brightness change known in image processing as gamma correction. Our empirical data shows that gamma correction changes images significantly, resulting in poor retrieval results if not addressed. The proposed solution is based on a novel differential invariant under this kind of radiometric transformation. Since imaged objects are often subject not only to radiometric changes but also to variations of the scene geometry, we propose a representation of two-dimensional image functions that is simultaneously invariant under gamma correction and some geometric transformations, namely translation, rotation, and scaling. An implementation of the proposed invariants based on derivatives of the Gaussian is given. For gamma correction without geometric scaling, improved image retrieval performance based on the invariant representation is demonstrated in both a template matching scenario and a histogram based retrieval system. The proposed invariants perform unsatisfactorily under scaling. The key reasons for this behavior are discussed, and empirical data on the accuracy of the proposed invariants are provided.