cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
How do eyes and brain search a randomly structured uninformative scene? Exploiting a basic interplay of attention and memory
Creators: name: Resca, Lorenzo
name: Greenwood, Pamela M.
name: Keech, Terrance D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: We tracked the eye movements of seven young and seven older adults performing a conjunctive visual search task similar to that performed by two highly trained monkeys in an original influential study of Motter and Belky (1998a, 1998b). We obtained results consistent with theirs regarding elements of perception, selection, attention and object recognition, but we found a much greater role played by long-range memory. A design inadequacy in the original Motter-Belky study is not sufficient to explain such discrepancy, nor is the high level of training of their monkeys. Perhaps monkeys and humans do not use mnemonic resources compatibly already in basic visual search tasks, contrary to a common expectation, further supported by cortical representation studies. We also found age-related differences in various measures of eye movements, consistently indicating slightly reduced conspicuity areas for the older adults, hence, correspondingly reduced processing and memory capacities. However, because of sample size and age differential limitations, statistically significant differences were found only for a few variables, most notably overall reaction times. Results reported here provide the basis for demonstrating the formation of spiraling or circulating patterns in the eye movement trajectories and for developing corresponding computational models and simulations.
description: https://novapublishers.com/shop/eye-movement-developmental-perspectives-dysfunctions-and-disorders-in-humans/ This Chapter is granted OPEN ACCESS. Click at the above LINK on the tab on "Table of Contents"
Color Glass Condensate at the LHC: hadron multiplicities in $pp$, $pA$ and $AA$ collisions
Creators: name: Kharzeev, Dmitri
name: Levin, Eugene
name: Nardi, Marzia
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We make quantitative predictions for the rapidity and centrality dependencies of hadron multiplicities in $AA$, $pA$ and $pp$ collisions at the LHC energies basing on the ideas of parton saturation in the Color Glass Condensate.
description: 26 pages, 8 figures
Participating in a daily diary study of stress and coping : an exploration of reactivity
Creators: name: Bermbach, Nicole
Publisher: name: University of British Columbia
Year: 2009

description: Daily process methods are becoming increasingly common in both health and social science research. However, the issue of how these intensive self-monitoring procedures affect participants and the information provided has not been systematically studied. In the present study, I explored the issue of reactivity in a daily diary study of workplace stress and coping among female clerical workers (n = 74), and compared them to clerical workers who did not self-monitor (n = 101). Daily diary participants provided information on stressors, coping, and mood twice a day for 15 consecutive workdays (30 occasions). At the end of the recording period participants reported on the overall experience of daily self-monitoring as well as on whether daily self-monitoring affected their behavior and mood. Participants also completed measures of distress (anxiety and depression) and satisfaction (job and life) both before and after completing the daily diaries. Finally, the role of individual differences [negative affect (NA) and depressive symptomatology] in reactivity was also examined. Results of repeated measures MANOVAs suggested that twice daily self-monitoring of stress and coping does not have a significant impact on daily mood during recording. Nor was there evidence of short-term effects of daily self-monitoring on participants' satisfaction and distress. However, content analysis revealed that participants' perceived daily self-monitoring to have had an impact. Though there was no evidence that this perceived impact was related to NA or depressive symptomatology, trend analysis showed that level of NA was associated with differential trends in daily anxious and depressed mood. Possible explanations for findings are discussed.
Populismo Latinoamericano: una perspectiva comparada
Creators: name: Poblete, Mario
Publisher: name: figshare
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 160603 Comparative Government and Politics
subject: FOS: Political science

description: Este ensayo pretende evidenciar la singularidad histórica del Populismo Latinoamericano, en base a su institución característica: el Estado. Este Populismo adquiere su definición histórica gracias a un tipo de Estado que organiza y coordina jerárquicamente diferentes ámbitos sociales (Corporativismo). No obstante, además del Estado, ámbitos como el político o el económico, adquieren formas de estructuración históricas que complementan la siguiente caracterización del Populismo. Es de esperar que bajo el Estado Populista la economía se centre en elgasto, su estructura sea la industrialización sustitutiva, los actores sociopolíticos estén controlados heterónomamente (por el Estado) y los partidos posean una pobre institucionalización. Bajo esta definición histórica del Populismo Latinoamericano de mediados del siglo XX, se compararán casos históricamente contrastantes: Argentina yChile.
Agricultural Trade Policy Modelling: Insights from a Meta-Analysis of Doha Development Agenda Outcomes
Creators: name: Hess, Sebastian
name: Von Cramon-Taubadel, Stephan
name: Hess, Sebastian
name: Von Cramon-Taubadel, Stephan
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Demand and Price Analysis
subject: International Development
subject: International Relations/Trade
subject: trade
subject: policy model
subject: Doha
subject: meta-analysis

description: In a meta-analysis of trade policy models, Hess and von Cramon-Taubadel (2008) use over 5800 simulated welfare effects from 110 studies of potential Doha Development Agenda outcomes to identify characteristics of models, data and policy experiments that influence simulation results. This meta-analysis, which is recapitulated here, produces plausible results and explains a significant proportion of the variation in simulated welfare effects. However, due to insufficient documentation and the complexity of the general and partial equilibrium models in the literature sample, many explanatory variables employed in this analysis are binary. This precludes more detailed analysis of their impacts across models. Therefore, a partial equilibrium model and a single country CGE for Canada are employed to generate synthetic meta-data. Simulation scenarios are based on random combinations of base data, elasticities and tariff changes selected from plausible ranges obtained from the literature sample. The synthetic meta-data has the advantage that the values of explanatory variables are measured exactly. This makes it possible to explore more complex issues of functional form and interaction between variables in the meta-analysis. The results indicate for both models that first- and second-order polynomials provide sufficient approximations of the model response. Especially in the CGE model, interaction terms between elasticities and policy variables are important. We conclude that meta-analysis can provide insights into the behaviour of trade policy models beyond what is possible with conventional sensitivity analysis and qualitative reviews.
Did the WTO Play a Role in the Food Crisis?
Creators: name: Meilke, Karl D.
name: Meilke, Karl D.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: International Development
subject: International Relations/Trade
subject: WTO
subject: food
subject: crisis

description: When high prices or natural calamities result in starvation and political unrest in the developing world emergency food aid is the best short run response. However, over a longer time frame it is important to have in place international rules that allow the market to function to help alleviate food shortages rather than making them worse. Given Canada’s trading position we have a huge stake in getting these rules right. Although the future of the Doha Round is unclear there is still time to make a start on developing better rules for export prohibitions, restrictions and export taxes that would serve the world better in times of shortage. A first step would be effective disciplines on the use of export taxes, and export restrictions and embargo’s.
Glassy dynamics and domains: exact results for the East model
Creators: name: van Zon, Ramses
name: Schofield, Jeremy
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: A general matrix-based scheme for analyzing the long-time dynamics in kinetically constrained models such as the East model is presented. The treatment developed here is motivated by the expectation that slowly-relaxing spin domains of arbitrary size govern the highly cooperative events that lead to spin relaxation at long times. To account for the role of large spin domains in the dynamics, a complete basis expressed in terms of domains of all sizes is introduced. It is first demonstrated that accounting for single domains of all possible sizes leads to a simple analytical result for the two-time single-spin correlation function in the East model that is in excellent quantitative agreement with simulation data for equilibrium spin up density values c greater or equal to 0.6. It is then shown that including also two neighboring domains leads to a closed expression that describes the slow relaxation of the system down to c approximately 0.3. Ingredients of generalizing the method to lower values of c are also provided, as well as to other models. The main advantage of this approach is that it gives explicit analytical results and that it requires neither an arbitrary closure for the memory kernel nor the construction of an irreducible memory kernel. It also allows one to calculate quantities that measure heterogeneity in the same framework, as is illustrated on the neighbor-pair correlation function and the distribution of relaxation times.
description: 17 pages, 5 figures (best viewed in color). Submitted to J. Chem. Phys
Cons-free Programs and Complexity Classes between LOGSPACE and PTIME
Creators: name: Jones, Neil D.
name: Bhaskar, Siddharth
name: Kop, Cynthia
name: Simonsen, Jakob Grue
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Complexity (cs.CC)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Programming language concepts are used to give some new perspectives on a long-standing open problem: is logspace = ptime ?
description: In Proceedings VPT/HCVS 2020, arXiv:2008.02483
Quantum-to-Classical Crossover in Full Counting Statistics
Creators: name: Sukhorukov, Eugene V.
name: Bulashenko, Oleg M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The reduction of quantum scattering leads to the suppression of shot noise. In the present paper, we analyze the crossover from the quantum transport regime with universal shot noise, to the classical regime where noise vanishes. By making use of the stochastic path integral approach, we find the statistics of transport and the transmission properties of a chaotic cavity as a function of a system parameter controlling the crossover. We identify three different scenarios of the crossover.
description: 4 pages, 2 figures
On-off intermittency in small-world networks of chaotic maps
Creators: name: Li, Chunguang
name: Fang, Jin-Qing
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Small-world networks are highly clustered networks with small average distance among the nodes. There are many natural and technological networks that present this kind of connections. The on-off intermittency is investigated in small-world networks of chaotic maps in this paper. We show how the small-world topology would affect the on-off intermittency behavior. The distributions of the laminar phase are calculated numerically. The results show that the laminar phases obey power-law distributions.
description: 7 pages, 6 figures
QARAQALPAQSTANNÍŃ HÁKIMSHILIK-AYMAQLÍQ BÓLINIWI HÁM MÁMLEKETLIK BASQARÍW STRUKTURASÍ
Creators: name: Djumashev A.
Publisher: name: Zenodo
Year: 2024

description: Qaraqalpaqstannıń hákimshilik-aymaqlıq rayonlastırılıwı mashqalasına ilimiy ádebiyatlarda jetkilikli dárejede dıqqat awdarılmaǵan, óytkeni ol tiykarınan oraylıq basqarıw organlarına baylanıslı boldı. Mámleketlik hákimiyattıń ierarxiyalıq sistemasında basqarıwǵa qatań oraylastırılǵan apparat arqalı erisiledi. Mámleket hákimiyatınıń joqarı organı eldiń rawajlanıw jobasın hám byudjetin tastıyıqladı. Jergilikli organlardıń barlıq iskerligin oray qadaǵalap bardı, barlıq jumıs partiya syezdleri, KPSS OK plenumları qararlarına sáykes alıp barıldı.
Accidental Degeneracy in k-space, Geometrical Phase, and the Perturbation of $π$ by Spin-orbit Interactions
Creators: name: Allen, Philip B.
name: Pickett, Warren E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Since closed lines of {\it accidental} electronic degeneracies were demonstrated to be possible, even frequent, by Herring in 1937, no further developments arose for eight decades. The earliest report of such a nodal loop in a real material -- aluminum -- is recounted and elaborated on. Nodal loop semimetals have become a focus of recent activity, with emphasis on other issues. Band degeneracies are, after all, the origin of topological phases in crystalline materials. Spin-orbit interaction lifts accidental band degeneracies, with the resulting spectrum being provided here. The geometric phase $γ(C)=\pmπ$ for circuits $C$ surrounding a line of such degeneracy cannot survive completely unchanged. The change depends on how the spin is fixed during adiabatic evolution. For spin fixed along the internal spin-orbit field, $γ(C)$ decreases to zero as the circuit collapses around the line of lifted degeneracy. For spin fixed along a perpendicular axis, the conical intersection persists and $γ(C)=\pmπ$ is unchanged.
description: 6 pages, 2 figures. arXiv admin note: substantial text overlap with arXiv:0709.1457
Is Monsanto Leaving Money on the Table? Monopoly Pricing and Bt Cotton Value with Heterogeneous Adopters
Creators: name: Oehmke, James F.
name: Wolf, Christopher A.
name: Oehmke, James F.
name: Wolf, Christopher A.
Publisher: name: Unknown
Year: 2004
Subjects: subject: biotechnology
subject: Bt cotton
subject: heterogeneous adopters
subject: innovation
subject: monopoly pricing
subject: technology
subject: valuation distribution

description: We examine the allocation of technology rents between a price-setting, innovating monopolist and heterogeneous technology adopters. A model of monopoly pricing in the presence of heterogeneous adopters is used to examine conditions under which greater producer (farmer) heterogeneity leads to greater producer benefit from innovation in non-competitive markets. An application to Bt cotton determines the profit-maximizing price of Bt cotton seed and reveals that Monsanto and Delta and Pine Land are indeed leaving money on the table in the form of unexploited profit opportunities. However, we estimate that the presence of heterogeneous adopters explains over 80% of the rents that accrue to the farmers.
The Consequences of Gamma-ray Burst Jet Opening Angle Evolution on the Inferred Star Formation Rate
Creators: name: Lloyd-Ronning, Nicole M.
name: Johnson, Jarrett L.
name: Aykutalp, Aycin
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Gamma-ray burst (GRB) data suggest that the jets from GRBs in the high redshift universe are more narrowly collimated than those at lower redshifts. This implies that we detect relatively fewer long GRB progenitor systems (i.e. massive stars) at high redshifts, because a greater fraction of GRBs have their jets pointed away from us. As a result, estimates of the star formation rate (from the GRB rate) at high redshifts may be diminished if this effect is not taken into account. In this paper, we estimate the star formation rate (SFR) using the observed GRB rate, accounting for an evolving jet opening angle. We find that the SFR in the early universe (z > 3) can be up to an order of magnitude higher than the canonical estimates, depending on the severity of beaming angle evolution and the fraction of stars that make long gamma-ray bursts. Additionally, we find an excess in the SFR at low redshifts, although this lessens when accounting for evolution of the beaming angle. Finally, under the assumption that GRBs do in fact trace canonical forms of the cosmic SFR, we constrain the resulting fraction of stars that must produce GRBs, again accounting for jet beaming-angle evolution. We find this assumption suggests a high fraction of stars in the early universe producing GRBs - a result that may, in fact, support our initial assertion that GRBs do not trace canonical estimates of the SFR.
description: Final version accepted to MNRAS
Expected Utility Analysis of Stocker Cattle Ownership Versus Contract Grazing in the Southeast
Creators: name: Anderson, John D.
name: Lacy, Curt
name: Forrest, Charlie S.
name: Little, Randall D.
name: Anderson, John D.
name: Lacy, Curt
name: Forrest, Charlie S.
name: Little, Randall D.
Publisher: name: Unknown
Year: 2004
Subjects: subject: contracts
subject: expected utility
subject: grazing
subject: stocker calves

description: Stocker cattle ownership is compared to contract grazing using stochastic simulation. Returns are evaluated for both cattle owners and caretakers in contract grazing agreements. For caretakers, contract grazing is significantly less risky than cattle ownership. Slightly to moderately risk-averse caretakers could be expected to prefer some type of contract grazing to direct ownership of cattle. For cattle owners, contracting reduces risk only slightly while significantly reducing expected returns.
The Impact of Supply Chain Capabilities on Logistic Efficiency for the Construction Projects
Creators: name: Shahbaz, Muhammad Saeed
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 400504
subject: Construction engineering
classificationCode: 330202
subject: Building construction management and project planning

description: Rapid technological advancements force organizations to be more proactive and efficient it operations while previous studies revealed that most of the public sector projects go over in term of time and cost. Although extensive literature is available but only for the private sector, the investigations on the public sector are scarce. After plentiful literature, it has found that timely and sage supply chain is a major hurdle. Various strategies and approaches have been proposed to tackle the situation but after a thorough investigation, it was found that flexibility and collaboration are the topmost influencing factors in improving logistic efficiency. Thus the aim of this study is to empirically verify the positive impact of flexibility and collaboration on logistic efficiency. A questionnaire was adopted and distributed by random sampling to the strategic level of the construction projects in the city of Lahore, Pakistan. Multiple regressions were applied through SPSS. The finding of the study revealed that flexibility contributes 33%, collaboration contributes 35.5% in the logistic efficiency. It can be concluded that construction projects must be flexible and force stakeholders for collaboration. This study added in the frame of knowledge as new findings for public sector projects. This study will help the managers in completing their projects timely and accurately.
Inhalt I. Quartal 2021 / Aktuelle Ausstellungen / Impressum
Creators: name: Redaktion, Die
Publisher: name: KulturGut : aus der Forschung des Germanischen Nationalmuseums
Year: 2021

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 68 (2021): KulturGut: aus der Forschung des Germanischen Nationalmuseums
Discrete spectrum of a pair of nonsymmetric waveguides coupled by a window
Creators: name: Borisov, Denis I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the paper we study the discrete spectrum of a pair of quantum two-dimensional waveguides having common boundary in which a window of finite length is cut out. We study the phenomenon of new eigenvalues emerging from the threshold of the essential spectrum when the length of window passes through critical values. We construct the asymptotics expansions for the emerging eigenvalues with respect to small parameter which is the difference between current length of the window and the nearest critical value. We also study the behaviour of the spectrum when the length of the window increases unboundedly and construct asymptotics expansions with respect to great parameter which is a length of the window.
description: The original text was written in Russian. This is a translation made by the author. In the revised version just some minor changes were made
Inverted metallicity gradients in two Virgo cluster star-forming dwarf galaxies: evidence of recent merging?
Creators: name: Grossi, M.
name: García-Benito, R.
name: Cortesi, A.
name: Gonçalves, D. R.
name: Gonçalves, T. S.
name: Lopes, P. A. A.
name: Menéndez-Delmestre, K.
name: Telles, E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present integral field spectroscopy observations of two star-forming dwarf galaxies in the Virgo cluster (VCC135 and VCC324) obtained with PMAS/PPak at the Calar Alto 3.5 meter telescope. We derive metallicity maps using the N2 empirical calibrator. The galaxies show positive gas metallicity gradients, contrarily to what is usually found in other dwarfs or in spiral galaxies. We measure gradient slopes of 0.20 $\pm$ 0.06 and 0.15 $\pm$ 0.03 dex/$R_e$ for VCC135 and VCC324, respectively. Such a trend has been only observed in few, very isolated galaxies, or at higher redshifts ($z >$ 1). It is thought to be associated with accretion of metal-poor gas from the intergalactic medium, a mechanism that would be less likely to occur in a high-density environment like Virgo. We combine emission line observations with deep optical images to investigate the origin of the peculiar metallicity gradient. The presence of weak underlying substructures in both galaxies and the analysis of morphological diagnostics and of ionised gas kinematics suggest that the inflow of metal-poor gas to the central regions of the dwarfs may be related to a recent merging event with a gas-rich companion.
description: 13 pages, 9 figures, MNRAS in press. V2: minor figure revisions and minor title changes
Labor Risk Attributes in the Green Industry: Business Owners' and Managers' Perspectives
Creators: name: Bitsch, Vera
name: Harsh, Stephen B.
name: Bitsch, Vera
name: Harsh, Stephen B.
Publisher: name: Unknown
Year: 2004
Subjects: subject: focus group discussion
subject: human resource management
subject: personnel management
subject: risk management
subject: risk perception

description: Managers of greenhouses, nurseries, and landscape contractors participated in five focus group discussions on labor-related risks. Managers conceptualize labor risks along the human resource management process: (1) recruitment and selection, (2) training and development, (3) performance evaluation and discipline, (4) careers and relationships, and (5) compensation packages. In addition, they identified (6) immigrant employees and (7) labor laws and regulations as sources of risk. They recognized a large number of risk-increasing attributes, but also a number of mediating strategies to reduce these risks.
On the preservation of coherence in the electronic wavepacket of a neutral and rigid polyatomic molecule
Creators: name: Csehi, A.
name: Badankó, P.
name: Halász, G. J.
name: Vibók, Á.
name: Lasorne, B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present various types of reduced models including five vibrational modes and three electronic states for the pyrazine molecule in order to investigate the lifetime of electronic coherence in a rigid and neutral system. Using an ultrafast optical pumping in the ground state (1 1 A g ), we prepare a coherent superposition of two bright excited states, 1 1 B 2u and 1 1 B 1u , and reveal the effect of the nuclear motion on the preservation of the electronic coherence induced by the laser pulse. More specifically, two aspects are considered: the anharmonicity of the potential energy surfaces and the dependence of the transition dipole moments (TDMs) with respect to the nuclear coordinates. To this end, we define an ideal model by making three approximations: (i) only the five totally symmetric modes move, (ii) which correspond to uncoupled harmonic oscillators, and (iii) the TDMs from the ground electronic state to the two bright states are constant (Franck-Condon approximation). We then lift the second and third approximations by considering, first, the effect of anharmonicity, second, the effect of coordinate-dependence of the TDMs (first-order Herzberg- Teller contribution), third, both. Our detailed numerical study with quantum dynamics confirms long-term revivals of the electronic coherence even for the most realistic model.
Ultralight Scalar Decay and the Hubble Tension
Creators: name: Gonzalez, Mark
name: Hertzberg, Mark P.
name: Rompineve, Fabrizio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We examine whether the Hubble tension, the mismatch between early and late measurements of $H_0$, can be alleviated by ultralight scalar fields in the early universe, and we assess its plausibility within UV physics. Since their energy density needs to rapidly redshift away, we explore decays to massless fields around the era of matter-radiation equality. We highlight a concrete implementation of ultralight pseudo-scalars, axions, that decay to an abelian dark sector. This scenario circumvents major problems of other popular realizations of early universe scalar models in that it uses a regular scalar potential that is quadratic around the minimum, instead of the extreme fine-tuning of many existing models. The idea is that the scalar is initially frozen in its potential until $H\sim m$, then efficient energy transfer from the scalar to the massless field can occur shortly after the beginning of oscillations due to resonance. We introduce an effective fluid model which captures the transition from the frozen scalar phase to the radiation dark sector phase. We perform a fit to a combined Planck 2018, BAO, SH$_0$ES and Pantheon supernovae dataset and find that the model gives $H_0=69.9_{-0.86}^{+0.84}$ km/s/Mpc with $Δχ^2 \approx -9$ compared to $Λ$CDM; while inclusions of other data sets may worsen the fit. Importantly, we find that large values of the coupling between fields is required for sufficiently rapid decay: For axion-gauge field models $ϕF\tilde{F}/Λ$ it requires $Λ\lesssim f/80$, where $2πf$ is the field range. We find related conclusions for scalar-scalar models $\simϕ\,χ^2$ and for models that utilize perturbative decays. We conclude that these sorts of ultralight scalar models that purport to alleviate the Hubble tension, while being reasonable effective field theories, require features that are difficult to embed within UV physics.
description: 13 pages in double column format. V2: Added references, further clarifications. V3: Some improvements. Updated towards version accepted for publication in JCAP
Unter falscher Identität
Creators: name: Huber, Markus T.
Publisher: name: KulturGut : aus der Forschung des Germanischen Nationalmuseums
Year: 2021

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 68 (2021): KulturGut: aus der Forschung des Germanischen Nationalmuseums
Channel-selective non-Fermi liquid behavior in the two-channel Kondo lattice model under a magnetic field
Creators: name: Inui, Koji
name: Motome, Yukitoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Stimulated by anomalous behaviors found in non-Kramers $f$-electron systems in an applied magnetic field, we study a two-channel Kondo lattice model by using a cluster extension of the dynamical mean-field theory combined with the continuous-time quantum Monte Carlo method. We include the effect of the external magnetic field in two ways: the Zeeman coupling to conduction electron spins and an effective coupling to the quadrupole degree of freedom through the crystalline electric field splitting. We show that the magnetic field suppresses the antiferroic-spin order (physically, corresponding to the antiferroic-quadrupole order), and yields a channel-selective non-Fermi liquid state where one of the two channels (physically, spin-up or -down) exhibits non-Fermi liquid behavior while the other shows Fermi liquid behavior, before entering the Fermi liquid regime in higher fields. This anomalous state appears in a dome-shaped region which extends from inside the antiferroic-spin ordered phase to the paramagnetic phase. We find that the composite correlation, which is a measure of differentiation in the Kondo coupling between the two channels, is enhanced in this dome-shaped region. We also find that the specific heat coefficient is enhanced in this region in the paramagnetic side, indicating heavy fermion behavior not only in the vicinity of the critical field where the antiferroic-spin order vanishes but also in a certain region of the field and temperature. We discuss the results in comparison with the ordinary Kondo lattice model. We also discuss the implication of our findings to the peculiar behavior observed in the 1-2-20 compounds such as $\rm{PrIr_2Zn_{20}}$, $\rm{PrRh_2Zn_{20}}$, and $\rm{PrV_2Al_{20}}$ under a magnetic field.
Durchs Schlüsselloch gezeichnet?
Creators: name: Valter, Claudia
Publisher: name: KulturGut : aus der Forschung des Germanischen Nationalmuseums
Year: 2021

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 68 (2021): KulturGut: aus der Forschung des Germanischen Nationalmuseums
Hetes Fränkchen – Fränkchens Hete
Creators: name: Rök, Barbara
Publisher: name: KulturGut : aus der Forschung des Germanischen Nationalmuseums
Year: 2021

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 68 (2021): KulturGut: aus der Forschung des Germanischen Nationalmuseums
Prolog for Verification, Analysis and Transformation Tools
Creators: name: Leuschel, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Programming Languages (cs.PL)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: This article examines the use of the Prolog language for writing verification, analysis and transformation tools. Guided by experience in teaching and the development of verification tools like ProB or specialisation tools like ECCE and LOGEN, the article presents an assessment of various aspects of Prolog and provides guidelines for using them. The article shows the usefulness of a few key Prolog features. In particular, it discusses how to deal with negation at the level of the object programs being verified or analysed.
description: In Proceedings VPT/HCVS 2020, arXiv:2008.02483
Zu Jôhannân von Mossul, Jôhannân bar Penkâjê und Mîyâ´êl Bâdôqa
Creators: name: Baumstark, Anton
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 10 (1912): Oriens christianus, Band 10
Correlation induced emergent charge order in metallic vanadium dioxide
Creators: name: Singh, Christopher N.
name: Piper, L. F. J
name: Paik, Hanjong
name: Schlom, Darrell G.
name: Lee, Wei-Cheng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent progress in growth and characterization of thin-film VO$_2$ has shown its electronic properties can be significantly modulated by epitaxial matching. To throw new light on the concept of `Mott engineering', we develop a symmetry-consistent approach to treat structural distortions and electronic correlations in epitaxial VO$_2$ films under strain, and compare our design with direct experimental probes. We find strong evidence for the emergence of correlation-driven charge order deep in the metallic phase, and our results indicate that exotic phases of VO$_2$ can be controlled with epitaxial stabilization.
description: 7 pages, 3 figures
Changing Factor Income Shares in Agri-Food Industries
Creators: name: Konduru, Srinivasa
name: Bjornson, Bruce
name: Konduru, Srinivasa
name: Bjornson, Bruce
Publisher: name: Unknown
Year: 2004
Subjects: subject: agriculture
subject: factor shares
subject: food
subject: GDP
subject: national income

description: A concern in the political economy is how national income is shared between labor and capital. This study evaluates long-term changes in factor income shares in three agri-food industries, their attribution to the level of factor usage or to factor compensation rates, and relation to changes in capital intensity and factor productivity. We find long-term stability in the profit and labor shares of farm income, decline, in the profit share of agricultural serviced industry income, and increase in the profit share of food manufacturing income due to fewer productivity improvements being passed on to wage increases.
Detectability of f-mode Unstable Neutron Stars by the Schenberg Spherical Antenna
Creators: name: de Araujo, J. C. N.
name: Miranda, O. D.
name: Aguiar, O. D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Brazilian spherical antenna (Schenberg) is planned to detect high frequency gravitational waves (GWs) ranging from 3.0 kHz to 3.4 kHz. There is a host of astrophysical sources capable of being detected by the Brazilian antenna, namely: core collapse in supernova events; (proto)neutron stars undergoing hydrodynamical instability; f-mode unstable neutron stars, caused by quakes and oscillations; excitation of the first quadrupole normal mode of 4-9 solar mass black holes; coalescence of neutron stars and/or black holes; exotic sources such as bosonic or strange matter stars rotating at 1.6 kHz; and inspiralling of mini black hole binaries. We here address our study in particular to the neutron stars, which could well become f-mode unstable producing therefore GWs. We estimate, for this particular source of GWs, the event rates that in principle can be detected by Schenberg and by the Dutch Mini-Grail antenna.
description: 7 pages, 3 figures; Classical and Quantum Gravity (in press)
A study of a group treatment for men and women diagnosed with posttraumatic stress disorder
Creators: name: Dzedzora, Vivian
Publisher: name: University of British Columbia
Year: 2009

description: This study compares the reduction of Posttraumatic stress disorder (PTSD) symptoms in men and women who had participated in a treatment group. Respondents were 51 adult men and women (30 women and 21 men) who met a diagnosis of PTSD. Of the initial 51 participants, 31 completed treatment (10 males and 21 females). Men ranged in age from 22 to 61 years of age with a mean age of 42, while women ranged from 22 to 55 years of age with a mean age of 36. A manualized treatment protocol based on a cognitive-behavioral approach consisting of exposure therapy, cognitive restructuring and breathing retraining exercises was delivered by the same two co-therapists for all treatment groups on a twice-weekly basis. Measures included the Beck Depression Inventory, the State-Trait Anxiety Inventory and the Posttraumatic Stress Diagnostic Scale. Results indicated a significant reduction in PTSD, Anxiety and Depression symptoms for both men and women pre to post treatment. There were no significant differences in the reduction of PTSD, Depression and Anxiety symptoms between male and female participants. Results are discussed in light of the PTSD research.
Effect of Ranchland Attributes on Recreational Hunting in Florida: A Hedonic Price Analysis
Creators: name: Shrestha, Ram K.
name: Alavalapati, Janaki R.R.
name: Shrestha, Ram K.
name: Alavalapati, Janaki R.R.
Publisher: name: Unknown
Year: 2004
Subjects: subject: hedonic model
subject: hunting lease
subject: land attributes
subject: silvopasture

description: Recreational hunting has been an attractive enterprise for some ranchers who are interested in supplementing their income from cattle. Ranchland attributes-such as parcel size, tree cover, and proximity to urban centers-are expected to influence hunters’ preferences and, thus, hunting lease payments. We estimated the effects of these attributes on hunting revenues using a hedonic model. The results reveal that trees and vegetation cover on ranchlands have a positive impact on hunting revenues, indicating opportunities for silvopasture practices. Those ranchers in Florida who maintain about 22% trees and other vegetation cover receive $16.15 acre per year from hunting leases, but doubling the cover would generate only an additional $3.20 per acre per year.
Deliverable D5.1 Report on the ESDM runtime extensions for parallel in-flight analytics
Creators: name: Elia, Donatello
name: Palazzo, Cosimo
name: Musio, Manuel
name: Budich, Reinhard
name: Heidmann, Oliver
name: Spickermann, Dela
name: Kunkel, Julian
Publisher: name: Zenodo
Year: 2021

description: As the volumes of data produced by Earth-System Models (ESM) continue to increase, solutions capable of addressing post-processing, analysis and visualisation (PAV) of these data at extreme-scale are required. Novel technologies supporting parallel data I/O and processing for different scientific domains are, thus, being developed. For example, the Earth System Data Middleware (ESDM), developed in the context of the ESiWACE CoE for climate and weather applications, aims to provide improved I/O towards heterogeneous storage back-ends. The ESDM-PAV runtime, reported in this document, provides the extensions to the ESDM middleware with the goal of specifically supporting PAV needs in the field of climate and weather applications. It delivers a simple high-level interface to build PAV experiments composed of different tools, as well as integrating with the HPC software ecosystem. It is built on top of the ESDM software used for I/O and in-flight analytics purposes. The proposed solution allows the support of different types of execution parallelism, exploiting a task-based programming abstraction, whereas the in-flight analytics extensions allow performing the analysis while the data are being accessed, potentially offloading the processing on the storage systems, therefore reducing data movement between storage and computing resources. This deliverable provides the formal documentation of the final release of the ESDM-PAV runtime: its complete design, the parallelisation strategies employed and the software implemented. It describes the approach considered to support efficient in-flight analytics on top of the ESDM, as well as the integration strategy for PAV applications. It also presents a set of usage examples of the supported features and the related system documentation.
Dependence of the Brillouin precursor form on the initial signal rise time
Creators: name: Ciarkowski, Adam
Publisher: name: arXiv
Year: 2004
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Propagation of a Brillouin precursor in a Lorentz dispersive medium is considered. The precursor is excited by a sine modulated initial signal, with its envelope described by a hyperbolic tangent function. The purpose of the paper is to show how the rate of growth of the initial signal affects the form of the Brillouin precursor. Uniform asymptotic approach, pertinent to coalescing saddle points, is applied in the analysis. The results are illustrated with numerical examples.
description: 14 pages, 5 figures
QARAQALPAQSTANDA SUDLAR TARIYXÍ (1946‒1991-JÍLLAR)
Creators: name: B. Opaev
Publisher: name: Zenodo
Year: 2024

description: Urıstan keyingi dáslepki jıllarda Awqamnıń basqa aymaqları qatarı Qaraqalpaqstanda sud ayrıqsha áskeriy jaǵdaydan tınısh ómirge qayttı. Biraq respublikadaǵı xalıq sudlarınıń materiallıq bazası ele júdá tómen edi. Sudlar aldında turǵan eń úlken mashqala sudlar ushın arnawlı salınǵan imaratlardıń joqlıǵı, zárúr úskenelerdiń bolmawı edi. Sonıń ushında dáslepki jıllarda usı mashqalalardı sheshiw boyınsha is-sharalar kóriwge úlken itibar qaratıldı. Qaraqalpaqstannıń xalıq sudları da tómen shárayatta xızmet kórsetti. Rayonlardaǵı jaǵday paytaxt Nókistegiden de ashınarlı edi. Sudlarǵa arnalǵan gúwalar xanası, másláhat xana, arxiv bólmesi, ayırım orınlarda, hátteki, sud zalı da joq edi. Sud imaratları uzaq jıllar dawamında remontlanbay qaldı. Zárúr mebeller menen támiynlenbedi. Kópshilik sud imaratları barı-joǵı eki-úsh xanalı bir qabatlı úylerden ibarat edi. Qıstıń suwıq kúnleri xanalar ısıtılmaǵan. Bulardıń hámmesi sudlar xızmetiniń nátiyjesine keri tásir jasadı.
Zu dem bisher unbekannten Werk des Patriarchen Eutychios von Alexandrien
Creators: name: Graf, G.
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 10 (1912): Oriens christianus, Band 10
Exponential-Family Embedding With Application to Cell Developmental Trajectories for Single-Cell RNA-Seq Data
Creators: name: Lin, Kevin Z.
name: Lei, Jing
name: Roeder, Kathryn
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Hematology

description: Scientists often embed cells into a lower-dimensional space when studying single-cell RNA-seq data for improved downstream analyses such as developmental trajectory analyses, but the statistical properties of such nonlinear embedding methods are often not well understood. In this article, we develop the exponential-family SVD (eSVD), a nonlinear embedding method for both cells and genes jointly with respect to a random dot product model using exponential-family distributions. Our estimator uses alternating minimization, which enables us to have a computationally efficient method, prove the identifiability conditions and consistency of our method, and provide statistically principled procedures to tune our method. All these qualities help advance the single-cell embedding literature, and we provide extensive simulations to demonstrate that the eSVD is competitive compared to other embedding methods. We apply the eSVD via Gaussian distributions where the standard deviations are proportional to the means to analyze a single-cell dataset of oligodendrocytes in mouse brains. Using the eSVD estimated embedding, we then investigate the cell developmental trajectories of the oligodendrocytes. While previous results are not able to distinguish the trajectories among the mature oligodendrocyte cell types, our diagnostics and results demonstrate there are two major developmental trajectories that diverge at mature oligodendrocytes. Supplementary materials for this article, including a standardized description of the materials available for reproducing the work, are available as an online supplementary materials.
QCD Tests of the Puzzling Scalar Mesons
Creators: name: Narison, Stephan
name: CNRS-Montpellier
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Motivated by several recent data, we test the QCD spectral sum rules (QSSR) predictions based on different proposals (\bar qq, \bar q\bar q qq, and gluonium) for the nature of scalar mesons. In the I=1 and 1/2 channels, the unusual (wrong) splitting between the a_0(980) and κ(900) and the a_0(980) width can be understood from QSSR within a \bar qq assignement. However, none of the \bar qq and \bar q\bar q qq results can explain the large κwidth, which may suggest that it can result from a strong interference with non-resonant backgrounds. In the I=0 channel, QSSR and some low-energy theorems (LET) require the existence of a low mass gluonium σ_B(1 GeV) coupled strongly to Goldstone boson pairs which plays in the U(1)_V channel, a similar role than the η' for the value of the U(1)_A topological charge. The observed σ(600) and f_0(980) mesons result from a maximal mixing between the gluonium σ_B and \bar qq(1 GeV) mesons, a mixing scheme which passes several experimental tests. OZI violating J/ψ--> ϕπ^+π^-, D_s--> 3πdecays and J/ψ--> γS glueball filter processes may indicate that most of the I=0 mesons above 1 GeV have important gluonium in their wave functions. We expect that the f_0(1500), f_0(1710) and f_0(1790) have significant gluonium component in their wave functions, while the f_0(1370) is mostly \bar qq. Tests of these results can be provided by the measurements of the pure gluonium η'ηand 4πspecific U(1)_A decay channels.
description: Version to appear in Phys. Rev. D (one previous figure corrupted)
Small dams and social capital in Yemen: How assistance strategies affect local investment and institutions
Creators: name: Vermillion, Douglas Lynn
name: Al-Shaybani, Said
name: Vermillion, Douglas Lynn
name: Al-Shaybani, Said
Publisher: name: Unknown
Year: 2004
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Environmental Economics and Policy
subject: Farm Management
subject: Land Economics/Use
subject: Dams
subject: Investment
subject: Development aid
subject: Irrigated farming
subject: Villages
subject: Water delivery

description: This report examines the development of eight small dam projects in the mountainous province of Al-Mahweet in north-central Yemen. The report also investigates how external assistance affects incentives for local people to invest in dam development and water delivery systems and also to create rules, property rights and institutional arrangements to manage the dam and water.