cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Minimal duality breaking in the Kallen-Lehman approach to 3D Ising model: a numerical test
Creators: name: Astorino, Marco
name: Canfora, Fabrizio
name: Martinez, Cristian
name: Parisi, Luca
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A Kallen-Lehman approach to 3D Ising model is analyzed numerically both at low and high temperature. It is shown that, even assuming a minimal duality breaking, one can fix three parameters of the model to get a very good agreement with the MonteCarlo results at high temperatures. With the same parameters the agreement is satisfactory both at low and near critical temperatures. How to improve the agreement with MonteCarlo results by introducing a more general duality breaking is shortly discussed.
description: 15 pages, 3 figures; accepted for publication on PHYSICS LETTERS B; typos corrected in Eqs. (21) and (28); numerical results improved; references and clarifying comments added including the discussion of the behavior near the critical point; v6: acknowledgements added
Second order transport coefficients of nonconformal fluids from compactified Dp-branes
Creators: name: Wu, Chao
name: Wang, Yanqi
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: All the 7 dynamical second order transport coefficients of the nonconformal fluids that correspond to Dp-branes with one or more world-volume directions compactified are derived via fluid/gravity correspondence. The conditions considered in this paper include D4-brane with 1, 2 or 3 compact directions, D3-brane with 1 or 2 compact directions, as well as D2-brane with 1 direction compactified. The derived second order transport coefficients satisfy the Haack-Yarom, Romatschke and Kleinert-Probst relations.
description: 41 pages, 2 tables
Negative Stereotypes and Willingness to Change Them: Testing Theories of Discrimination in South Africa
Creators: name: Aguero, Jorge M.
name: Aguero, Jorge M.
Publisher: name: Unknown
Year: 2005
Subjects: Labor and Human Capital

description: This paper proposes a new test to distinguish between the two leading theories of discrimination: preference versus information. Discrimination based on preferences occurs when people behave as if they refuse to change their stereotypes about the capabilities of discriminated individuals. Those who discriminate based on information are willing to alter their stereotypes. Using data from a quasi-experiment in South Africa, I test for discrimination against women and non-whites. The preliminary results show no discrimination against the former. In the case of racial discrimination, players' stereotypes benefit non-whites instead of white opponents, but they are reluctant to change their impression for the former. However, they are willing to change their initial impression about white opponents. This has severe implications about the permanency of affirmative action policies.
Non-exponentially weighted aggregation: regret bounds for unbounded loss functions
Creators: name: Alquier, Pierre
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We tackle the problem of online optimization with a general, possibly unbounded, loss function. It is well known that when the loss is bounded, the exponentially weighted aggregation strategy (EWA) leads to a regret in $\sqrt{T}$ after $T$ steps. In this paper, we study a generalized aggregation strategy, where the weights no longer depend exponentially on the losses. Our strategy is based on Follow The Regularized Leader (FTRL): we minimize the expected losses plus a regularizer, that is here a $ϕ$-divergence. When the regularizer is the Kullback-Leibler divergence, we obtain EWA as a special case. Using alternative divergences enables unbounded losses, at the cost of a worst regret bound in some cases.
MAXIMUM SIMULATED LIKELIHOOD: A BRIEF INTRODUCTION FOR PRACTITIONERS
Creators: name: Arias, Carlos
name: Cox, Thomas L.
name: Arias, Carlos
name: Cox, Thomas L.
Publisher: name: Unknown
Year: 1999
Subjects: Research Methods/ Statistical Methods

description: This paper discusses the increasing importance of probability simulation methods in the context of Maximum Simulated Likelihood. Three probability simulators are analyzed following their chronological order of appearance. This analysis provides an intuitive approach to the basic idea behind probability simulation, the successive improvements and probable future developments. The paper pays special attention to the role of simulation noise in Maximum Simulated Likelihood.
Coherent randomized benchmarking
Creators: name: Miguel-Ramiro, Jorge
name: Pirker, Alexander
name: Dür, Wolfgang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Randomized benchmarking is a powerful technique to efficiently estimate the performance and reliability of quantum gates, circuits and devices. Here we propose to perform randomized benchmarking in a coherent way, where superpositions of different random sequences rather than independent samples are used. We show that this leads to a uniform and simple protocol with significant advantages with respect to gates that can be benchmarked, and in terms of efficiency and scalability. We show that e.g. universal gate sets, the set of $n-$qudit Pauli operators or more general sets including arbitrary unitaries, as well as a particular $n-$qudit Clifford gate using only the Pauli set, can be efficiently benchmarked. The price to pay is an additional complexity to add control to the involved quantum operations. However we demonstrate that this can be done by using auxiliary degrees of freedom that are naturally available in basically any physical realization, and are independent of the gates to be tested.
Positive Processes
Creators: name: Bakhtin, V. I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Dynamical Systems (math.DS)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: Primary 37A50, 37D35, Secondary 47B65, 28D20, 60F10

description: In the present paper we introduce positive flows and processes, which generalize the ordinary dynamical systems and stochastic processes. We develop a branch of theory of positive operators based on the concepts of phase and positive algebras, the spectral potential, the dual entropy, equilibrium measures, the action functional, sensitive states, empirical measures and prove within it the law of large numbers with respect to the sensitive states and calculate asymptotics for probabilities of large deviations in terms of the action functional.
description: 31 pages
Semi-compactness and multiple oscillating pulses in kink scattering
Creators: name: Bazeia, D.
name: Gomes, Adalto R.
name: Simas, Fabiano C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work we consider model of asymmetric kinks, where the behavior of the solution in one side is different from the other side. Also, the models depend of an integer $n$ and, with the increase of $n$, the constructed kink assumes a hybrid character: a compactlike profile on one side and a kinklike profile on the other side. We investigate numerically the kink-antikink and antikink-kink dynamics, with the aim to understand the effect of the transition of the usual kink to the semi-compacton structure. The kink-antikink process shows the formation of one-bounce windows for small values of $n$. The increase of $n$ favors the breaking this structure and the appearance of oscillatory modes. For antikink-kink collisions we report the appearance of two-bounce windows for small values of the parameter. We also found an intricate structure of two-oscillation windows.
description: 25 pages, 19 figures. v3: updated to match the published version
Exploring the energy landscape of model proteins: a metric criterion for the determination of dynamical connectivity
Creators: name: Bongini, Lorenzo
name: Livi, Roberto
name: Politi, Antonio
name: Torcini, Alessandro
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: A method to reconstruct the energy landscape of small peptides is presented with reference to a 2d off--lattice model. The starting point is a statistical analysis of the configurational distances between generic minima and directly connected pairs (DCP). As the mutual distance of DCP is typically much smaller than that of generic pairs, a metric criterion can be established to identify the great majority of DCP. Advantages and limits of this approach are thoroughly analyzed for three different heteropolymeric chains. A funnel--like structure of the energy landscape is found in all of the three cases, but the escape rates clearly reveal that the native configuration is more easily accessible (and is significantly more stable) for the sequence that is expected to behave as a real protein.
description: 10 pages, 16 figures, submitted to Physical. Review. E
DEVELOPMENT STRATEGY, POVERTY AND DEFORESTATION IN THE PHILIPPINES
Creators: name: Coxhead, Ian A.
name: Jayasuriya, Sisira
name: Coxhead, Ian A.
name: Jayasuriya, Sisira
Publisher: name: Unknown
Year: 2002
Subjects: Community/Rural/Urban Development

description: Most thinking on poverty and deforestation in developing countries does so in terms of the influence of one on the other, in either direction. However, the two have common determinants in the underlying economic and institutional conditions that set factor and product prices and the incentives for migration and natural resource-depleting activities. These determinants include property rights failures (open access to forest lands) but also 'government failures' in the form of economic policies that indirectly promote deforestation and retard poverty alleviation. A general equilibrium approach permits the analytical identification of the influences that such distortions exert on poverty and deforestation pressures. Using a numerical general equilibrium model, we consider the likely effects of the reform of industrial and agricultural protection policy, a key component of modern Philippine economic development strategy, on the determinants of poverty and deforestation.
Lectures on Quantum Mechanics (nonlinear PDE point of view)
Creators: name: Komech, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81;78;37K;35L;35Q;35B41;35P25;82B03

description: We expose the Schrödinger quantum mechanics with traditional applications to Hydrogen atom. We discuss carefully the experimental and theoretical background for the introduction of the Schrödinger, Pauli and Dirac equations, as well as for the Maxwell equations. We explain in detail all basic theoretical concepts. We explain all details of the calculations and mathematical tools: Lagrangian and Hamiltonian formalism for the systems with finite degree of freedom and for fields, Geometric Optics, the Hamilton-Jacobi equation and WKB approximation, Noether theory of invariants including the theorem on currents, four conservation laws (energy, momentum, angular momentum and charge), Lie algebra of angular momentum and spherical functions, scattering theory (limiting amplitude principle and limiting absorption principle), the Lienard-Wiechert formulas, Lorentz group and Lorentz formulas, Pauli theorem and relativistic covariance of the Dirac equation, etc. We give a detailed oveview of the conceptual development of the quantum mechanics, and expose main achievements of the ``old quantum mechanics'' in the form of exercises. One of our basic aim in writing this book, is an open and concrete discussion of the problem of a mathematical description of the following two fundamental quantum phenomena: i) Bohr's quantum transitions and ii) de Broglie's wave-particle duality. Both phenomena cannot be described by autonomous linear dynamical equations, and we give them a new mathematical treatment related with recent progress in the theory of global attractors of nonlinear hyperbolic PDEs.
description: 229 pages
Principal Component Analysis of Diffuse Magnetic Scattering: a Theoretical Study
Creators: name: Twyman, Robert
name: Gibson, Stuart J
name: Molony, James
name: Quintanilla, Jorge
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present a theoretical study of the potential of Principal Component Analysis to analyse magnetic diffuse neutron scattering data on quantum materials. To address this question, we simulate the scattering function $S\left(\mathbf{q}\right)$ for a model describing a cluster magnet with anisotropic spin-spin interactions under different conditions of applied field and temperature. We find high dimensionality reduction and that the algorithm can be trained with surprisingly small numbers of simulated observations. Subsequently, observations can be projected onto the reduced-dimensionality space defined by the learnt principal components. Constant-field temperature scans corresponds to trajectories in this space which show characteristic bifurcations at the critical fields corresponding to ground-state phase boundaries. Such plots allow the ground-state phase diagram to be accurately determined from finite-temperature measurements.
description: 12 pages, 9 figures; author's accepted version with improved discussions and additional appendices
CONSUMER PROMOTION AND PURCHASE TIMING: THE CASE OF CHEESE
Creators: name: Gould, Brian W.
name: Gould, Brian W.
Publisher: name: Unknown
Year: 1996
Subjects: Consumer/Household Economics

description: The dynamics of cheese purchases is analyzed by estimating a series of econometric models of duration based on a 170 week household panel. Besides purchase quantity and price data, information with respect to coupon use and household demographic characteristics are used in a variety of models which build upon each other in terms of assumed distribution of interpurchase time, effect of previous purchases, role of demographic characteristics and effect of unobserved interpurchase time heterogeneity. Likelihood ratio tests clearly reject the null hypothesis that coupon use has no impact on cheese purchase timing.
A Theoretical Investigation of Surface Roughness Scattering in Silicon Nanowire Transistors
Creators: name: Wang, Jing
name: Polizzi, Eric
name: Ghosh, Avik
name: Datta, Supriyo
name: Lundstrom, Mark
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this letter, we report a three-dimensional (3D) quantum mechanical simulation to investigate the effects of surface roughness scattering (SRS) on the device characteristics of Si nanowire transistors (SNWTs). We treat the microscopic structure of the Si/SiO2 interface roughness directly by using a 3D finite element technique. The results show that 1) SRS reduces the electron density of states in the channel, which increases the SNWT threshold voltage, and 2) the SRS in SNWTs becomes more effective when more propagating modes are occupied, which implies that SRS is more important in planar metal-oxide-semiconductor field-effect-transistors with many transverse modes occupied than in small-diameter SNWTs with few modes conducting.
description: 13 pages, 4 figures
[Southern Pomo field notebook]
Creators: name: Allen, Elsie
name: Oswalt Family
name: Oswalt, Robert L.
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2015
Subjects: subject: peq
subject: Southern Pomo language

description: Vocabulary, morphology (paradigms, verbs of motion, possessives, instrumental prefixes, switch reference, personal names, causatives, directionals, body parts, "inanimate imitatives", sentences, and texts.
LOCAL GOVERNMENT TAXING, SPENDING AND ECONOMIC GROWTH: NEW EVIDENCE FOR WISCONSIN
Creators: name: Deller, Steven C.
name: Lledo, Victor
name: Deller, Steven C.
name: Lledo, Victor
Publisher: name: Unknown
Year: 2002
Subjects: Political Economy

description: Wisconsin is generally viewed as a high tax state. Depending on how one measures tax burdens, Wisconsin's rankings range from either the top five, or right in the middle of the national average. While these rankings have always been a source of discussion in Wisconsin, the state's current budget deficit, and the proposed solutions, has renewed the public debate about Wisconsin's fiscal policies with a vengeance. Accusations of duplication of services, higher costs inherent to the small scale of operation and a general tendency to be "big spenders" have created a firestorm of controversy. Further, a range of business support organizations has renewed yet again the call for tax reductions in the name of economic growth. In this applied research study we again ask the fundamental question "are Wisconsin local taxes too high" but we address the research question from a slightly different direction. Rather than looking at local property values and corresponding tax generating abilities, we measure the influence of local spending and taxation decisions on local economic growth. If local spending and taxation levels are indeed too high, we should see a dampening affect on local economic growth rates.
PHILOSOPHICAL VIEWS IN THE WORKS OF MARK TWAIN.
Creators: name: Akramova, Zilola
Publisher: name: Zenodo
Year: 2024

description: This article explores the philosophical views expressed in the works of Mark Twain, focusing on themes such as morality, religion, free will, and human nature. Through an analysis of his most notable works, such as The Adventures of Huckleberry Finn, The Mysterious Stranger, and Letters from the Earth, the article delves into Twain’s critical perspective on the human condition, social structures, and existential dilemmas. A detailed analysis of these works reveals Twain’s skepticism towards organized religion and his reflections on determinism, morality, and human flaws. His satire is discussed as a vehicle for conveying his philosophical outlook.
Endogenous Information Structures in Conservation Contracting
Creators: name: Goeschl, Timo
name: Lin, Tun
name: Goeschl, Timo
name: Lin, Tun
Publisher: name: Unknown
Year: 2004
Subjects: Environmental Economics and Policy

description: Landowners are commonly not only better informed about their private cost of conservation than conservation agencies, but also frequently in a position to spend resources on improving their knowledge about contract-relevant parameters before signing a contract on offer. We extend and generalize the literature on conservation contracting by endogenizing the information structure in a setting where the conservation agency is both asymmetrically informed about the efficiency of the landowner and unable to observe whether the landowner collects information after being offered the contract and before signing it. In this setting, we study the optimal contract the conservation agency should offer to the landowner conditional on the cost of information collection. This contract needs to balance moral hazard and adverse selection problems since by encouraging a landowner to collect information, the conservation agency simultaneously increases the landowner's incentive to misreport his 'type'. We term this the 'information rent effect'. Due to its presence, the terms of conservation contracts have to be significantly altered relative to a contract offered based on exogenous information structure or a contract based purely on information collection.
Quantum coherence as a signature of chaos
Creators: name: Anand, Namit
name: Styliaris, Georgios
name: Kumari, Meenu
name: Zanardi, Paolo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We establish a rigorous connection between quantum coherence and quantum chaos by employing coherence measures originating from the resource theory framework as a diagnostic tool for quantum chaos. We quantify this connection at two different levels: quantum states and quantum channels. At the level of states, we show how several well-studied quantifiers of chaos are, in fact, quantum coherence measures in disguise (or closely related to them). We further this connection for all quantum coherence measures by using tools from majorization theory. Then, we numerically study the coherence of chaotic-vs-integrable eigenstates and find excellent agreement with random matrix theory in the bulk of the spectrum. At the level of channels, we show that the coherence-generating power (CGP) -- a measure of how much coherence a dynamical process generates on average -- emerges as a subpart of the out-of-time-ordered correlator (OTOC), a measure of information scrambling in many-body systems. Via numerical simulations of the (nonintegrable) transverse-field Ising model, we show that the OTOC and CGP capture quantum recurrences in quantitatively the same way. Moreover, using random matrix theory, we analytically characterize the CGP-OTOC connection for the Haar and Gaussian ensembles. In closing, we remark on how our coherence-based signatures of chaos relate to other diagnostics, namely the Loschmidt echo, OTOC, and the Spectral Form Factor.
description: close to published version
Observation of Spin Relaxation Anisotropy in Semiconductor Quantum Wells
Creators: name: Averkiev, N. S.
name: Golub, L. E.
name: Gurevich, A. S.
name: Evtikhiev, V. P.
name: Kochereshko, V. P.
name: Platonov, A. V.
name: Shkolnik, A. S.
name: Efimov, Yu. P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Spin relaxation of two-dimensional electrons in asymmetrical (001) AlGaAs quantum wells are measured by means of Hanle effect. Three different spin relaxation times for spins oriented along [110], [1-10] and [001] crystallographic directions are extracted demonstrating anisotropy of D'yakonov-Perel' spin relaxation mechanism. The relative strengths of Rashba and Dresselhaus terms describing the spin-orbit coupling in semiconductor quantum well structures. It is shown that the Rashba spin-orbit splitting is about four times stronger than the Dresselhaus splitting in the studied structure.
description: 4 pages, 3 figures
Holography and Emergent 4D Gravity
Creators: name: Nitti, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I review recent work toward constructing, via five-dimensional holographic duals, four-dimensional theories in which spin-2 states (gravitons) are emergent. The basic idea is to extend to gravity model-building the applications of holographic duality to phenomenology construction.
description: 14 pages, 1 figure. Invited review for Modern Physics Letters A. Journal version; minor typos corrected
Liedke, Gerhard (Hrsg.), Frieden - Bibel - Kirche
Creators: name: Solms, Friedhelm
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 23 Nr. 2 (1974): Ökumenische Rundschau, Band 23, Heft 2
Dynamical model based on finite stacking enthalpies for homogeneous and inhomogeneous DNA thermal denaturation
Creators: name: Joyeux, Marc
name: Buyukdagli, Sahin
Publisher: name: arXiv
Year: 2005
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We present a nonlinear dynamical model for DNA thermal denaturation, which is based on the finite stacking enthalpies used in thermodynamical nearest-neighbour calculations. Within this model, the finiteness of stacking enthalpies is shown to be responsible for the sharpness of calculated melting curves. Transfer-integral and molecular dynamics calculations are performed to demonstrate that the proposed model leads to good agreement with known experimental results for both homogeneous and inhomogeneous DNA.
Studies of the Suitability of Expanded Shale Aggregate for Use in Cement Concrete
Creators: name: Brown, Claude M.
name: Strunk, Loren H.
name: Sawyer, Dave H.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1954
Subjects: subject: Transportation Engineering

description: Expanded shale is one of several artificial lightweight aggregates currently used in the production of lightweight concrete. Its use has become rather widespread through recent improvements in production techniques, mix designs, placement methods, and air entrainment. However, various types of lightweight concrete as such is not of recent origin, having been used in this country for more than a half century.  Expanded shale aggregates are produced by heating a suitable shale to the point of fusion. Gases within the shale expand and thus form thousands of tiny air cells within the mass which are retained upon cooling and solidification. The finished product is a highly cellular aggregate. Burning takes place in rotary kilns under controlled temperatures ranging from 1900 to 2200°F.
Discovery of excess O I absorption towards the z = 6.42 QSO SDSS J1148+5251
Creators: name: Becker, George D.
name: Sargent, Wallace L. W.
name: Rauch, Michael
name: Simcoe, Robert A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a search for O I in the spectra of nine 4.9 < z_qso < 6.4 QSOs taken with Keck/HIRES. We detect six systems with N(O I) > 10^13.7 cm^{-2} in the redshift intervals where O I 1302 falls redward of the Ly-alpha forest. Four of these lie towards SDSS J1148+5251 (z_qso = 6.42). This imbalance is unlikely to arise from variations in sensitivity among our data or from a statistical fluctuation. The excess O I occurs over a redshift interval that also contains transmission in Ly-alpha and Ly-beta. Therefore, if these O I systems represent pockets of neutral gas, then they must occur within or near regions of the IGM that are highly ionized. In contrast, no O I is detected towards SDSS J1030+0524 (z_qso = 6.30), whose spectrum shows complete absorption in Ly-alpha and Ly-beta over Δz ~ 0.2. Assuming no ionization corrections, we measure mean abundance ratios = -0.04 +/- 0.06, = -0.31 +/- 0.09, and = -0.34 +/- 0.07 (2 sigma), which are consistent with enrichment dominated by Type II supernovae. The O/Si ratio limits the fraction of silicon in these systems contributed by metal-free very massive stars to < 30%, a result which is insensitive to ionization corrections. The ionic comoving mass densities along the z_qso > 6.2 sightlines, including only the detected systems, are Ω(O I) = (7.0 +/- 0.6) * 10^{-8}, Ω(Si II) = (9.6 +/- 0.9) * 10^{-9}, and Ω(C II) = (1.5 +/- 0.2) * 10^{-8}.
description: Submitted to ApJ, with changes to reflect referee's comments
Defect-induced $4p$-magnetism in layered platinum diselenide
Creators: name: Manchanda, Priyanka
name: Kumar, Pankaj
name: Dev, Pratibha
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Platinum diselenide (PtSe$_{2}$) is a recently-discovered extrinsic magnet, with its magnetism attributed to the presence of Pt-vacancies. The host material to these defects itself displays interesting structural and electronic properties, some of which stem from an unusually strong interaction between its layers. To date, it is not clear how the unique intrinsic properties of PtSe$_2$ will affect its induced magnetism. In this theoretical work, we show that the defect-induced magnetism in PtSe$_{2}$ thin films is highly sensitive to: (i) the layer-thickness (ii) defect density, and (iii) substrate choice. These different factors dramatically modify all magnetic properties, including the magnitude of local moments, strength of the coupling, and even nature of the coupling between the moments. We further show that the strong inter-layer interactions are key to understanding these effects. A better understanding of the various influences on magnetism, can enable controllable tuning of the magnetic properties in Pt-based dichalcogenides, which can be used to design novel devices for magnetoelectric and magneto-optic applications.
THE CONSERVATION RESERVE AND SUPPLY CONTROL: IS THE BASE BITE THE BEST BET?
Creators: name: Taff, Steven J.
name: Taff, Steven J.
Publisher: name: Unknown
Year: 1987
Subjects: Land Economics/Use

description: To examine the extent to which the Conservation Reserve Program (CRP) brings about a reduction in surplus commodity production, I develop a simple model that incorporates the farm-level production effects of entry into the Reserve. The model is used to estimate the reduction in aggregate program crop acreage under two CRP program alternatives: (1) the "base bite," which requires a proportional reduction in a farm's commodity base as a condition of CRP entry (the current law) and (2) no base bite, which for supply control purposes would rely upon a "displacement" of acreage actually available for planting. Data from the first four rounds of CRP bidding permit comparison of the supply control impacts of the alternative provisions. The base bite is shown to have reduced aggregate program crop plantings by 8.7 million acres, while displacement would have reduced plantings by 8.0 million acres.
Czempiel, Ernst-Otto, Schwerpunkte und Ziele der Friedensforschung
Creators: name: Solms, Friedhelm
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 23 Nr. 2 (1974): Ökumenische Rundschau, Band 23, Heft 2
Nationale Forschungsdateninfrastruktur (NFDI) e. V. - Satzungsvorstellung
Creators: name: Sure-Vetter, York
name: Lübke, Eva
name: Kraft, Sophie
name: Seitz-Moskaliuk, Hendrik
Publisher: name: Zenodo
Year: 2021
Subjects: Nationale Forschungsdateninfrastruktur
NFDI
Vereinssatzung

description: Diese Präsentation wurde zur Vorstellung der Satzung des Nationale Forschungsdateninfrastruktur (NFDI) e.V. am 10.03.2021 gehalten. Die Folien dienen zur Schaffung eines Überblicks über die Vereinsorgane und die Vereinsstruktur. Maßgeblich ist ausschließlich die jeweils aktuell gültige Fassung der Vereinssatzung.
[Southern Pomo field notebook]
Creators: name: Allen, Elsie
name: Dollar, Elizabeth
name: Luff, Effie Mabel
name: Oswalt Family
name: Oswalt, Robert L.
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2015
Subjects: subject: peq
subject: Southern Pomo language

description: Vocabulary, morphology (questions, motion and location, tense/aspect), sentences, and texts.
Multifragmentation, Clustering, and Coalescence in Nuclear Collisions
Creators: name: Scherer, Stefan
name: Stocker, Horst
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: Nuclear collisions at intermediate, relativistic, and ultra-relativistic energies offer unique opportunities to study in detail manifold fragmentation and clustering phenomena in dense nuclear matter. At intermediate energies, the well known processes of nuclear multifragmentation -- the disintegration of bulk nuclear matter in clusters of a wide range of sizes and masses -- allow the study of the critical point of the equation of state of nuclear matter. At very high energies, ultra-relativistic heavy-ion collisions offer a glimpse at the substructure of hadronic matter by crossing the phase boundary to the quark-gluon plasma. The hadronization of the quark-gluon plasma created in the fireball of a ultra-relativistic heavy-ion collision can be considered, again, as a clustering process. We will present two models which allow the simulation of nuclear multifragmentation and the hadronization via the formation of clusters in an interacting gas of quarks, and will discuss the importance of clustering to our understanding of hadronization in ultra-relativistic heavy-ion collisions.
description: 10 pages, 8 figures
MG-MAMPOSSt: A code to test modifications of gravity with the dynamics of galaxy clusters
Creators: name: Pizzuti, Lorenzo
name: Saltas, Ippocratis D.
name: Amendola, Luca
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present an upgraded version of \textsc{MG-MAMPOSSt}, an extension of the \textsc{MAMPOSSt} algorithm that performs Bayesian fits of models of mass and velocity anisotropy profiles to the distribution of tracers in projected phase space, to handle modified gravity models and constrain their parameters. The new version implements two distinct types of gravity modifications, namely general chameleon and Vainshtein screening, and is further equipped with a Monte-Carlo-Markov-Chain module for an efficient parameter space exploration. The program is complemented by the \textsc{ClusterGEN} code, capable of producing mock galaxy clusters under the assumption of spherical symmetry, dynamical equilibrium, and Gaussian local velocity distribution functions as in \textsc{MAMPOSSt}. We demonstrate the potential of the method by analysing a set of synthetic, isolated spherically-symmetric dark matter haloes, focusing on the statistical degeneracies between model parameters. Assuming the availability of additional lensing-like information, we forecast the constraints on the modified gravity parameters for the two models presented, as expected from joint lensing+internal kinematics analyses, in view of upcoming galaxy cluster surveys. In Vainshtein screening, we forecast the weak lensing effect through the estimation of the full convergence-shear profile. For chameleon screening, we constrain the allowed region in the space of the two free parameters of the model, further focusing on the $f(\mathcal{R})$ subclass to obtain realistic bounds on the background field $|f_{\mathcal{R}0}|$. Our analysis demonstrates the complementarity of internal kinematics and lensing probes for constraining modified gravity theories, and how the bounds on Vainshtein-screened theories improve through the combination of the two probes.
description: 19 pages, 13 figures, accepted for publication on MNRAS. For v3 : an error in the acknowledgements of v2 has been corrected. A significant extension about lensing in Vainshtein screening has been added compared to v1
MATRIX GENERATOR AND OPTIONALS (MGAO): USERS GUIDE
Creators: name: McDowell, Howard
name: McDowell, Howard
Publisher: name: Unknown
Year: 1982
Subjects: Research Methods/ Statistical Methods

description: Matrix Generator and Optionals (MGAO) is a computer software package developed by Paul Ching and Terry L. Roe. The program is designed to generate input data for a linear programming problem approximating a non-linear programming problem, submit the generated problem to an optimization package, from which the user receives standard computer output.
Az anyanyelv és célnyelv egymásra hatása a beszéd prozódiai megvalósításában
Creators: name: Juhász, Kornélia
Publisher: name: Pannon Egyetem
Year: 2023

description: Alkalmazott nyelvtudomány, vol. 23. issue 3. Különszám. ISSN 1587-1061, eISSN 2498-4442
THE ROLE OF CAPITAL AND CREDIT MARKETS IN REGIONAL DEVELOPMENT: PROBLEMS AND ISSUES
Creators: name: Shane, Mathew
name: Shane, Mathew
Publisher: name: Unknown
Year: 1972
Subjects: Community/Rural/Urban Development
Financial Economics

description: This paper discusses the major problem facing regional capital and credit markets in their relationship to regional development. There are two ways in which capital and credit markets play a crucial role in regional development: (1) they mobilize local savings resources and allocate them between sectors and industries within the region and (2) they provide the mechanism by which financial resources flow between the region and the national economy.
An Investigation of the Binding Properties of Limestone Dust
Creators: name: Howard, William E.
name: Williams, Ellis G.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1954
Subjects: subject: Transportation Engineering

description: A proper quantity of dust particles of various sizes has long been recognized as important in the construction of stone bases and pavements. Screenings for water bound macadam bases are required to contain not less than a specified amount of dust sizes, and dense-graded limestone bases have controlling limits for the dust fraction. It is generally assumed that these particles serve a dual purpose: (1) in filling void spaces created by larger particles, thus enhancing the gross structure of the aggregate, and (2) in acting as a binder material in the presence of water. Furthermore, it has been demonstrated that the addition of small amounts of certain chemicals may improve the strength characteristics of lime stone dusts.  Former studies have been concerned primarily with the overall strength properties of aggregate mixtures containing dust, rather than with the properties of the dust itself. However, in cases where binding properties are of primary concern, a more fundamental approach would be to investigate the dust and fine aggregate fractions before studying the mixture as a whole.  The purpose of this project was to study the binding properties of several different limestone dusts. The stones selected showed considerable differences in composition, and undoubtedly the scope of these differences encompassed the majority of limestones in Kentucky. In addition, an attempt was made to detect variations (if any) in the response of these stones to the effects induced by admixtures of calcium chloride - directly or indirectly.
A kulturális sokszínűség nyomai a budapesti Népszínház utca nyelvi tájképében
Creators: name: Balizs, Dániel
name: Erőss, Ágnes
Publisher: name: Pannon Egyetem
Year: 2021

description: Alkalmazott nyelvtudomány, vol. 21. issue 2. ISSN 1587-1061, eISSN 2498-4442
Correlation of uniaxial magnetic anisotropy axes and principal resistivities in polycrystalline ferromagnetic films
Creators: name: Kateb, Movaffaq
name: Ingvarsson, Snorri
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: In the present study, we demonstrate the measurement of resistivity tensor ($ρ$) along the magnetic axes of a polycrystalline film of ferromagnetic permalloy (Py). To this end, conventional Hall-bar and a more recent extended van der Pauw methods were utilized for determining 2D $ρ$ in the film plane. The samples were prepared by normal incidence sputter deposition within an in-situ magnetic field to induce in-plane uniaxial magnetic anisotropy in the film. Since $ρ$ might be affected by the internal magnetization of the film, we performed measurements by rotation of a saturating magnetic field in the film plane. Both methods indicate that the average resistivity is lower along the easy axis of the film compared to the hard axis. Since X-ray diffraction results indicated no dominating texture in the film, we concluded that there is a correlation between uniaxial magnetic axes and principal resistivity axes. This is an important finding that allows determining the direction of magnetic anisotropy axes without magnetometry. The results also verify atomic or pair ordering to be the origin of uniaxial magnetic anisotropy in the Py since resistivity is sensitive to the level of order in solids. The extended van der Pauw utilized here can be easily performed on the as-received samples which is of practical interest.
description: 5 pages, 5 figures
title: Pavement Investigation:
title: Middletown-Eastwood Portion of US 60, Louisville-Shelbyville Road
titleType: Subtitle
Creators: name: Drake, William B.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1954
Subjects: subject: Transportation Engineering

description: The attached report dealing with a "Pavement Investigation, Middletown-Eastwood Portion of US 60, Louisville-Shelbyville Road", is submitted in response to your directive of December 16, 1953. All of the field and laboratory work on the investigation was completed under Mr. Drake's supervision prior to his temporary transfer to the Division of Design on June 1, and during the past month he has been able to spend portions of his time toward completion of the report.
First results from a Liquid Argon Time Projection Chamber in a Magnetic Field
Creators: name: Badertscher, A.
name: Laffranchi, M.
name: Meregaglia, A.
name: Mueller, A.
name: Rubbia, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A small liquid argon Time Projection Chamber (LAr TPC) was operated for the first time in a magnetic field of 0.55 Tesla. The imaging properties of the detector were not affected by the magnetic field. In a test run with cosmic rays a sample of through going and stopping muons was collected. The chamber with the readout electronics and the experimental setup are described. A few selected events were reconstructed and analyzed and the results are presented. The magnetic bending of the charged particle tracks allows the determination of the electric charge and the momentum, even for particles not fully contained in the drift chamber. These features are e.g. required for future neutrino detectors at a neutrino factory.
description: 35 pages, 25 figures, version with full resolution figures at available at http://neutrino.ethz.ch/GLACIER/
INVESTIGATING PREFERENCES FOR ENVIRONMENT FRIENDLY PRODUCTION PRACTICES: TASTE SEGMENTS FOR ORGANIC AND INTEGRATED CROP MANAGEMENT IN ITALIAN HOUSEHOLDS
Creators: name: Scarpa, Riccardo
name: Spalatro, Fiorenza
name: Canavari, Maurizio
name: Scarpa, Riccardo
name: Spalatro, Fiorenza
name: Canavari, Maurizio
Publisher: name: Unknown
Year: 2003
Subjects: Environmental Economics and Policy
Food Consumption/Nutrition/Food Safety

description: This paper reports some preliminary results on a mixed logit random utility analysis of conjoint data from costumers' preferences over agricultural products. The data are collected via a telematic sample representative of Italian households. The survey instrument was implemented via a computer supported system. A multivariate normal full correlation structure is imposed in the mixed logit estimation and the implications of such a taste structure are examined.
Search for singly and pair-produced leptoquarks coupling to third-generation fermions in proton-proton collisions at $\sqrt{s} =$ 13 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for leptoquarks produced singly and in pairs in proton-proton collisions is presented. We consider the leptoquark (LQ) to be a scalar particle of charge -1/3$e$ coupling to a top quark plus a tau lepton ($\mathrm{t}τ$) or a bottom quark plus a neutrino ($\mathrm{b}ν$), or a vector particle of charge +2/3$e$, coupling to $\mathrm{t}ν$ or $\mathrm{b}τ$. These choices are motivated by models that can explain a series of anomalies observed in the measurement of B meson decays. In this analysis the signatures $\mathrm{t}τν\mathrm{b}$ and $\mathrm{t}τν$ are probed, using data recorded by the CMS experiment at the CERN LHC at $\sqrt{s} =$ 13 TeV and that correspond to an integrated luminosity of 137 fb$^{-1}$. These signatures have not been previously explored in a dedicated search. The data are found to be in agreement with the standard model prediction. Lower limits at 95% confidence level are set on the LQ mass in the range 0.98-1.73 TeV, depending on the LQ spin and its coupling $λ$ to a lepton and a quark, and assuming equal branching fractions for the two LQ decay modes considered. These are the most stringent constraints to date on the existence of leptoquarks in this scenario.
description: Replaced with the published version. Added the journal reference. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-19-015 (CMS Public Pages)
Kallholnoceras Frye 1987
Creators: name: Kröger, Björn
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Cephalopoda
Oncoceratida
Karoceratidae
Kallholnoceras

description: Genus Kallholnoceras Frye, 1987
Type species
Kallholnoceras cornutum Frye, 1987, Kallholn quarry, Kallholn, Dalarna, Sweden, Boda Formation, late Katian; by original designation.
Diagnosis
Exogastric, strongly curved cyrtocones with compressed conch cross section and gibbous mature body chamber; siphuncle close to conch margin, without endosiphuncular deposits with gradually enlarging; septal necks suborthochoanitic; siphuncle slightly expanded within chambers, without endosiphuncular deposits. (Compiled from Frye 1987.)
description: Published as part of Kröger, Björn, 2025, The Lyckholm acme of cephalopods - Review of the late Katian (Vormsi-Pirgu regional stages) Ordovician cephalopods of Estonia, pp. 1-169 in European Journal of Taxonomy 978 on page 77, DOI: 10.5852/ejt.2025.978.2801, http://zenodo.org/record/14988376