cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Михаил Андреевич Ильин: «...взорвана немцами при отступлении» (исследования архитектуры Подмосковья в годы войны)
Creators: name: Кызласова Ирина Леонидовна
Publisher: name: Вестник сектора древнерусского искусства
Year: 2020
Subjects: Михаил Ильин
новый документ
архитектура Подмосковья
разрушения
Отечественная война 1941–1945 гг.
портреты ученого

description: Статья содержит основные биографические сведения М.А.Ильина (1903–1981), крупного историка искусства, работавшего в ряде учреждений, в том числе в Институте истории искусств и Московском университете. Данный текст предваряет первую публикацию Отчета ученого, составленного в 1942 г. (или 1943 г.), по результатам обследования разрушений памятников архитектуры Верейского и Наро-Фоминского районов Московской области, известные автору с детства. Читатель узнает некоторые новые сведения (в частности, об утраченной каменной иконе, подарке Германского императора Рудольфа царю Ивану Грозному) и получает яркое представление о произошедшей катастрофе. Издаются уникальные фотопортреты и графический автопортрет Ильина.
Ökumenische Kirchengeschichtsschreibung in den Vereinigten Staaten von Nordamerika
Creators: name: Pfisterer, K. Dieterich
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 23 Nr. 3 (1974): Ökumenische Rundschau, Band 23, Heft 3
Ludus latrunculorum : Stein oder schachspiel vermehrt und verbessert
Creators: name: August 2, Hertug Av Braunschweig-Lüneburg
Publisher: name: Bey Johann Hüttnern
Year: 0

description: Skrevet av Gustav Selenus, psevd. for August II, hertug av Braunschweig-Lüneburg.
Chandra X-ray Grating Spectrometry of Eta Carinae near X-ray Minimum: I. Variability of the Sulfur and Silicon Emission Lines
Creators: name: Henley, D. B.
name: Corcoran, M. F.
name: Pittard, J. M.
name: Stevens, I. R.
name: Hamaguchi, K.
name: Gull, T. R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on variations in important X-ray emission lines in a series of Chandra grating spectra of the supermassive colliding wind binary star Eta Carinae, including key phases around the X-ray minimum/periastron passage in 2003.5. The X-rays arise from the collision of the slow, dense wind of Eta Car with the fast, low-density wind of an otherwise hidden companion star. The X-ray emission lines provide the only direct measure of the flow dynamics of the companion's wind along the wind-wind collision zone. We concentrate here on the silicon and sulfur lines, which are the strongest and best resolved lines in the X-ray spectra. Most of the line profiles can be adequately fit with symmetric Gaussians with little significant skewness. Both the silicon and sulfur lines show significant velocity shifts and correlated increases in line widths through the observations. The R = forbidden-to-intercombination ratio from the Si XIII and S XV triplets is near or above the low-density limit in all observations, suggesting that the line-forming region is >1.6 stellar radii from the companion star. We show that simple geometrical models cannot simultaneously fit both the observed centroid variations and changes in line width as a function of phase. We show that the observed profiles can be fitted with synthetic profiles with a reasonable model of the emissivity along the wind-wind collision boundary. We use this analysis to help constrain the line formation region as a function of orbital phase, and the orbital geometry.
description: 23 pages, 24 figures. Accepted for publication in the Astrophysical Journal. New layout for Figure 21; corrected typo in Table 7; corrected x-axis label in Figure 23
Luttinger's Theorem and Bosonization of the Fermi Surface
Creators: name: Haldane, F. D. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A course of four lectures given at the International School of Physics "Enrico Fermi", Varenna, Italy, July 1992, in which the underlying algebraic structure needed for bosonization of the Fermi surface in two- or three-dimensions was first described. This is an unchanged 1993 preprint version of a published but hard-to-find (and often mis-cited) 1994 article in the Varenna Summer School proceedings. The d > 1 dimensional generalization of the Kac-Moody algebra on the Fermi surface is presented, and the Gaussian reduction of the Fermi liquid to harmonic oscilator modes is derived. One-dimensional bosonization and the symmetries of spin-charge separation are also reviewed.
description: 17 pages, 0 figures; A 1993 preprint form of a published but hard-to-find article based on lectures presented at the International School of Physics "Enrico Fermi", Varenna, Italy, July 1992
Interleaving Fast and Slow Decision Making
Creators: name: Gulati, Aditya
name: Soni, Sarthak
name: Rao, Shrisha
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The "Thinking, Fast and Slow" paradigm of Kahneman proposes that we use two different styles of thinking -- a fast and intuitive System 1 for certain tasks, along with a slower but more analytical System 2 for others. While the idea of using this two-system style of thinking is gaining popularity in AI and robotics, our work considers how to interleave the two styles of decision-making, i.e., how System 1 and System 2 should be used together. For this, we propose a novel and general framework which includes a new System 0 to oversee Systems 1 and 2. At every point when a decision needs to be made, System 0 evaluates the situation and quickly hands over the decision-making process to either System 1 or System 2. We evaluate such a framework on a modified version of the classic Pac-Man game, with an already-trained RL algorithm for System 1, a Monte-Carlo tree search for System 2, and several different possible strategies for System 0. As expected, arbitrary switches between Systems 1 and 2 do not work, but certain strategies do well. With System 0, an agent is able to perform better than one that uses only System 1 or System 2.
description: 7 pages, 11 figures; typos corrected, references added
INDUCED INNOVATION AND LAND DEGRADATION IN DEVELOPING COUNTRY AGRICULTURE
Creators: name: Coxhead, Ian A.
name: Coxhead, Ian A.
Publisher: name: Unknown
Year: 1996
Subjects: Land Economics/Use

description: With few exceptions, induced innovation theories give little consideration to the role of distortions or externalities as determinants of the commodity or factor biases of innovations demanded by farmers. Nor has the theory devoted much attention to the influence of technical progress, with or without distortions, on the sectoral structure of production. This analysis identifies the demand for innovations as a function of a specific policy setting which conditions and is in turn conditioned by the sectoral structure of production. In this context, when some sectors contribute more than others to land degradation and soil erosion externalities, the capacity for divergence between privately optimal and welfare- maximizing allocations of research resources -calculated at market and shadow prices respectively - is substantial. In some circumstances it may be optimal to employ research budget allocations as second-best substitutes for Pigouvian taxes.
Localization transition, spectrum structure and winding numbers for one-dimensional non-Hermitian quasicrystals
Creators: name: Liu, Yanxia
name: Zhou, Qi
name: Chen, Shu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: By analyzing the Lyapunov exponent (LE), we develop a rigorous, fundamental scheme for the study of general non-Hermitian quasicrystals with both complex phase factor and non-reciprocal hopping. Specially, the localization-delocalization transition point, $\mathcal{PT}$-symmetry-breaking point and the winding number transition points are determined by LEs of its dual Hermitian model. The analysis was based on Avila's global theory, and we found that winding number is directly related to the acceleration, the slope of the LE, while quantization of acceleration is the crucial ingredient of Avila's global theory. This result applies as well to the models with higher winding, not only the simplest Aubry-André model. As typical examples, we obtain the analytical phase boundaries of localization transition for non-Hermitian Aubry-André model in the whole parameter space, and the complete phase diagram is straightforwardly determined. For the non-Hermitian Soukoulis-Economou model, a high winding model, we show how the phase boundaries of localization transition and winding number transitions relate to the LEs of its dual Hermitian model. Moreover, we discover an intriguing feature of robust spectrum, i.e., the spectrum keeps invariant when one changes the complex phase parameter $h$ or non-reciprocal parameter $g$ in the region of $h
description: 17 pages, 10 figures. version to appear in Phys. Rev. B
CRIME AND THE QUALITY OF LIFE IN WISCONSIN COUNTIES
Creators: name: Deller, Steven C.
name: Ottem, Thomas D.
name: Deller, Steven C.
name: Ottem, Thomas D.
Publisher: name: Unknown
Year: 2001
Subjects: Institutional and Behavioral Economics

description: The impact of crime on the local quality of life of a region is examined. Using the methods suggested by Roback (1982) hedonic pricing analysis is used to examine the effects of eight categories of crime on property values and wages. The hedonic results are then used to calculate the implicit prices of the various types of crime. Prices are computed for both urban and rural areas reflecting differences in lifestyle and the corresponding impact of crime. As expected, crime has a measurable negative cost and lowers overall quality of life in a region and the level of impact varies significantly by type of crime.
Несостоятельные опровержения
Creators: name: Малыгин Петр Дмитриевич
Publisher: name: Вестник сектора древнерусского искусства
Year: 2020
Subjects: Тверь
Спасо-Преображенский собор
фундаментные рвы
Торжок
известеобжигательные печи
летописные свидетельства.

description: Факт обнаружения экспедицией под руководством Л.А.Беляева остатков тверского Спасо-Преображенского собора XIII в. был недавно оспорен А.М.Салимовым. Однако его доводы уже при ближайшем рассмотрении оказываются поспешными и непродуманными, а все, без исключения, утверждения не выдерживают критики.
Topological contextuality and anyonic statistics of photonic-encoded parafermions
Creators: name: Liu, Zheng-Hao
name: Sun, Kai
name: Pachos, Jiannis K.
name: Yang, Mu
name: Meng, Yu
name: Liao, Yu-Wei
name: Li, Qiang
name: Wang, Jun-Feng
name: Luo, Ze-Yu
name: He, Yi-Fei
name: Huang, Dong-Yu
name: Ding, Guang-Rui
name: Xu, Jin-Shi
name: Han, Yong-Jian
name: Li, Chuan-Feng
name: Guo, Guang-Can
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Quasiparticle poisoning, expected to arise during the measurement of Majorana zero mode state, poses a fundamental problem towards the realization of Majorana-based quantum computation. Parafermions, a natural generalization of Majorana fermions, can encode topological qudits immune to quasiparticle poisoning. While parafermions are expected to emerge in superconducting fractional quantum Hall systems, they are not yet attainable with current technology. To bypass this problem, we employ a photonic quantum simulator to experimentally demonstrate the key components of parafermion-based universal quantum computation. Our contributions in this article are twofold. First, by manipulating the photonic states, we realize Clifford operator Berry phases that correspond to braiding statistics of parafermions. Second, we investigate the quantum contextuality in a topological system for the first time by demonstrating the contextuality of parafermion encoded qudit states. Importantly, we find that the topologically-encoded contextuality opens the way to magic state distillation, while both the contextuality and the braiding-induced Clifford gates are resilient against local noise. By introducing contextuality, our photonic quantum simulation provides the first step towards a physically robust methodology for realizing topological quantum computation.
description: 11+6 pages, 5+2 figures, 1+2 tables, presentation extended and improved, analysis and results the same, to appear in PRX Quantum
Influence of QED Corrections on the Orientation of Chiral Symmetry Breaking in the NJL model
Creators: name: Fujihara, T.
name: Inagaki, T.
name: Kimura, D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study QED corrections to chiral symmetry breaking in the Nambu--Jona-Lasinio (NJL) model with two flavors of quarks. In this model, the isospin symmetry is broken by the differences between the current quark masses and the electromagnetic charges of the up and down quarks. To leading order in the 1/N expansion, we calculate the effective potential of the model with one-loop QED corrections at finite temperature. Evaluating the effective potential, we study the influence of the isospin symmetry breaking on the orientation of chiral symmetry breaking. The current quark mass plays an essential role in maintaining the orientation of the chiral symmetry breaking. If the average of the up and down quark masses is small enough, we find a phase in which the pion field has non-vanishing expectation value and dynamical CP violation takes place.
description: 22 pages, 13 figures; added discussion about pion mass difference
WEALTH ACCUMULATION AND ACTIVITY CHOICE EVOLUTION AMONG AMAZONIAN FOREST PEASANT HOUSEHOLDS
Creators: name: Takasaki, Yoshito
name: Barham, Bradford L.
name: Coomes, Oliver T.
name: Takasaki, Yoshito
name: Barham, Bradford L.
name: Coomes, Oliver T.
Publisher: name: Unknown
Year: 2000
Subjects: Consumer/Household Economics

description: This paper examines investment and livelihood decisions among forest peasant households in the Amazonian floodplain. A dynamic household model of multiple asset accumulation and activity choice under risk and credit constraints is developed by incorporating natural resource use and human capital evolution. Asset portfolios and sectoral incomes are estimated and then simulated to investigate the endowment and lifecycle dependency as well as the convergence/divergence of asset accumulation and corresponding activity choices. Physical asset endowment (especially land) and different human capital evolutions across activities help to explain forest peasants' livelihood choices, distinctive asset portfolios, and divergent income outcomes over the lifecycle.
On the Dynamics of Suddenly Heated Accretion Disks around Neutron Stars
Creators: name: Ballantyne, D. R.
name: Everett, J. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Type I X-ray bursts and superbursts on neutron stars release sudden and intense radiation fields into their surroundings. Here, we consider the possible effects of these powerful explosions on the structure of the accretion disk. The goal is to account for the apparent evolution of the innermost regions of the accretion disk around 4U 1820-30 during a superburst. Three different processes are considered in detail: radiatively or thermally driven outflows, inflow due to Poynting-Robertson drag, and a structural change to the disk by X-ray heating. Radiatively driven winds with large column densities can be launched from the inner disk, but only for L/L_{Edd} >~ 1, which is expected to be obtained only at the onset of the burst. Furthermore, the predicted mass outflow rate is less than the accretion rate in 4U 1820-30. Estimates of the Poynting-Robertson or radiative drag timescale shows that it is a very efficient means of removing angular momentum from the gas. However, the analytical results are likely only applicable at the innermost edge of the disk. X-ray heating gives a change in the disk scale height that is correlated with the blackbody temperature, as seen in the evolution during the 4U 1820-30 superburst. If this change in the scale height can alter the surface density, then the viscous time (with α~ 0.03-0.2) is the closest match to the 4U 1820-30 results. We expect, however, that all three processes are likely ongoing when an accretion disk is subject to a sudden heating event. Ultimately, a numerical simulation of a disk around a bursting neutron star is required to determine the exact response of the disk. Magnetic truncation of the accretion flow is also considered and applied to the 4U 1820-30 X-ray reflection results.
description: 14 pages, 6 figures, accepted by ApJ
TRADE AREA ANALYSIS OF SELECT WISCONSIN COUNTIES: UPDATE FOR 1999
Creators: name: Deller, Steven C.
name: Deller, Steven C.
Publisher: name: Unknown
Year: 2001
Subjects: Community/Rural/Urban Development

description: The development of a community's retail market should be an integral part of the community development process. Some, however, might argue that the retail sector develops naturally following other types of economic development such as growth in the manufacturing sector or an influx of tourists. To a degree this is true. Several factors,however, may prevent this process from being completely efficient.
Diestoceratidae Foerste 1926
Creators: name: Kröger, Björn
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Cephalopoda
Oncoceratida
Diestoceratidae

description: Diestoceratidae gen. et sp. indet.
Fig. 27M
Material examined
ESTONIA • Salu; Pirgu Regional Stage; TUG 1745-192.
Description
The specimen is a fragment of a nearly straight mold of a mature body chamber and nine chambers of the phragmocone which is partially deformed. Parts of the shell are eroded. The conch surface is not preserved. The fragmentary preservation does not permit measurement of the original conch cross section. The maximum conch diameter (28 mm) is located at the base of the body chamber. The body chamber is ca 28 mm long with slightly convex conch margins, it contracts adorally to a diameter of ca 27 mm where a shallow, inconspicuous constriction is located ca 5 mm distant from the peristome. The phragmocone diameter increases from 23 mm to 27 mm at a length of 16 mm (angle of expansion = 18°). The sutures are directly transverse and 3.5 mm apart where the conch diameter is 27 mm (RCL = 0.13). On the surface of the phragmocone, faint longitudinal lirae may be seen.
Remarks
The conch shape, shape of the mature body chamber as well as spacing and pattern of sutures of this specimen are suggestive of a small diestoceratid. The small mature size and the relatively long body chamber are not known from any species of Danoceras, Dowlingoceras or Diestoceras described in the literature. However, as crucial features for determination, including the siphuncle position and shape, are not preserved, while the conch cross section cannot be fully be reconstructed, a genus and species level determination of this specimen is impossible.
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 73, DOI: 10.5852/ejt.2025.978.2801, http://zenodo.org/record/14988376
Approximately $C^*$-inner product preserving mappings
Creators: name: Chmielinski, Jacek
name: Moslehian, Mohammad Sal
Publisher: name: arXiv
Year: 2006
Subjects: subject: Operator Algebras (math.OA)
subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 39B52; 39B82; 46B99; 46L08

description: A mapping $f: {\mathcal M} \to {\mathcal N}$ between Hilbert $C^*$-modules approximately preserves the inner product if \[\|< f(x), f(y)> - < x, y> \| \leq ϕ(x, y),\] for an appropriate control function $ϕ(x,y)$ and all $x, y \in {\mathcal M}$. In this paper, we extend some results concerning the stability of the orthogonality equation to the framework of Hilbert $C^*$-modules on more general restricted domains. In particular, we investigate some asymptotic behavior and the Hyers--Ulam--Rassias stability of the orthogonality equation.
description: 10 pages
Wisconsin and the Agricultural Economy
Creators: name: Deller, Steven C.
name: Deller, Steven C.
Publisher: name: Unknown
Year: 2004
Subjects: Agribusiness

description: In this applied research project I attempt to explore general trends within the Wisconsin agricultural sectors as they relate to the larger Wisconsin economy. Using two metrics of economic activity, income and jobs, I explore recent historical trends. In essence, the analysis finds that production agriculture went through a significant downward phase that has appeared to stabilize over the most recent period. Income from agriculture has become increasingly unstable adding significant uncertainty to the industry. Agricultural processing, however, remains a strong source of income and employment growth. While production agriculture appears to have stabilized and food processing has grown, the rest of the state's economy has grown at a much greater clip, meaning that agriculture as a percent of the Wisconsin economy has declined over time. In addition to the historical analysis a detailed economic impact assessment was undertaken using the most recent data available; 2000. I examine on-farm dairy production and processing, farm production broadly defined and agricultural processing broadly defined. In addition, I examine the role of horticulture, a small but growing part of Wisconsin's agricultural economy. In general, farm production is a modest contributor to the the Wisconsin economy, but food processing is a more significant part of the economy.
The cosmological constant and the use of cutoffs
Creators: name: Donoghue, John F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Of the contributions to the cosmological constant, zero-point energy and self energy contributions scale as $Λ^4$ where $Λ$ is an ultraviolet cutoff used to regulate the calculations. I show that such contributions vanish when calculated in perturbation theory. This demonstration uses a little-known modification to perturbation theory found by Honerkamp and Meetz and by Gerstein, Jackiw, Lee and Weinberg which comes into play when using cutoffs and interactions with multiple derivatives, as found in chiral theories and gravity. In a path integral treatment, the new interaction arises from the path integral measure. This reduces the sensitivity of the cosmological constant to the high energy cutoff significantly, although it does not resolve the cosmological constant problem. The feature removes one of the common motivations for supersymmetry. It also calls into question some of the results of the Asymptotic Safety program. Covariance and quadratic cutoff dependence are also briefly discussed.
description: 9 pages, 1 figure Reference to Fradkin - Vilkovisky added, as well as some clarifying comments
Linear and nonlinear flexural stiffness models for concrete walls in high-rise buildings
Creators: name: Ibrahim, Ahmed M. M.
Publisher: name: University of British Columbia
Year: 2009

description: In the seismic design of high-rise wall buildings, the fundamental period of the building and the building drift are usually determined using linear elastic dynamic analysis. To carry out this analysis, designers need to assume a linear flexural stiffness of the wall sections that account for cracking. The commentary to the 1994 Canadian concrete code (CPCA 1995) suggests a stiffness value of 70% of the gross moment of inertia (Ig) of the wall section. The commentary to the 1995 New Zealand Standard (NZS 3101 1995) suggests much lower stiffness values. A wall subjected to axial compression of 10% of fc’ Ag is suggested to have half what is recommended in the CPCA Handbook (i.e. 0.35 Ig). The NEHRP Guidelines for the Seismic Rehabilitation of Buildings (FEMA 273) suggests stiffness values of 0.8 Ig and 0.5 Ig for uncracked and cracked concrete walls, respectively. While it is not clear which of the recommended stiffness values should be used, it is certainly clear that the choice of stiffness value will have a significant influence on the predicted period and drift of the building. The actual influence of cracking on the flexural stiffness of a concrete wall subjected to seismic loading is nonlinear. Nonlinear static analysis is increasingly used to capture this influence provided that an appropriate nonlinear model is used for the material. In this thesis, a simple nonlinear flexural (bending moment-curvature) model for concrete walls in high-rise buildings is proposed. To validate the model, a 40 ft high slender concrete wall was constructed and tested under simulated earthquake loading. Results from the test were compared with the proposed model and showed good agreement. Based on the proposed piece-wise linear model, a general method to determine the linear "effective" flexural stiffness of concrete walls was developed. Results from the general method for the effective flexural stiffness showed that the large variation in effective stiffness that is recommended by various design guidelines does actually exist for different wall configurations under certain conditions. The general method presented in this thesis gives the appropriate stiffness for a particular wall considering all important parameters that influence the stiffness. A study was conducted to examine the influence of a variety of parameters on the stiffness of concrete walls and a set of simplified expressions are proposed for the effective flexural stiffness of concrete walls. The piece-wise flexural model is implemented into a nonlinear static (pushover) analysis computer program to demonstrate the use of the model in predicting the nonlinear static response of concrete walls. Two example applications are presented, including the analysis of a 450 ft high coupled wall structure currently being constructed. The results from the analysis showed the importance of accurately modeling the nonlinear flexural stiffness of concrete walls.
Relations between moments for the Jacobi and Cauchy random matrix ensembles
Creators: name: Forrester, Peter J.
name: Rahman, Anas A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 15B52 (Primary), 39A10, 34C60

description: We outline a relation between the densities for the $β$-ensembles with respect to the Jacobi weight $(1-x)^a(1+x)^b$ supported on the interval $(-1,1)$ and the Cauchy weight $(1-\mathrm{i}x)^η(1+\mathrm{i}x)^{\barη}$ by appropriate analytic continuation. This has the consequence of implying that the latter density satisfies a linear differential equation of degree three for $β=2$, and of degree five for $β=1$ and $4$, analogues of which are already known for the Jacobi weight $x^a(1-x)^b$ supported on $(0,1)$. We concentrate on the case $a=b$ (Jacobi weight on $(-1,1)$) and $η$ real (Cauchy weight) since the density is then an even function and the differential equations simplify. From the differential equations, recurrences can be obtained for the moments of the Jacobi weight supported on $(-1,1)$ and/or the moments of the Cauchy weight. Particular attention is paid to the case $β=2$ and the Jacobi weight on $(-1,1)$ in the symmetric case $a=b$, which in keeping with a recent result obtained by Assiotis et al.~for the $β=2$ case of the symmetric Cauchy weight (parameter $η$ real), allows for an explicit solution of the recurrence in terms of particular continuous Hahn polynomials. Also for the symmetric Cauchy weight with $η=-β(N-1)/2-1-α$, after appropriately scaling $α$ proportional to $N$, we use differential equations to compute terms in the $1/N^2$ ($1/N$) expansion of the resolvent for $β=2$ ($β=1,4$).
description: 32 pages
Manifestation of Berry curvature in geophysical ray tracing
Creators: name: Perez, Nicolas
name: Delplace, Pierre
name: Venaille, Antoine
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Geometrical phases, such as the Berry phase, have proven to be powerful concepts to understand numerous physical phenomena, from the precession of the Foucault pendulum to the quantum Hall effect and the existence of topological insulators. The Berry phase is generated by a quantity named Berry curvature, describing the local geometry of wave polarization relations and known to appear in the equations of motion of multi-component wave packets. Such a geometrical contribution in ray propagation of vectorial fields has been observed in condensed matter, optics and cold atoms physics. Here, we use a variational method with a vectorial Wentzel-Kramers-Brillouin (WKB) ansatz to derive ray tracing equations in geophysical waves and reveal the contribution of Berry curvature. We detail the case of shallow water wave packets and propose a new interpretation to the equatorial oscillation and the bending of rays in mid-latitude area. Our result shows a mismatch with the textbook scalar approach for ray tracing, by predicting a larger eastward velocity for Poincaré wave packets. This work enlightens the role of wave polarization's geometry in various geophysical and astrophysical fluid waves, beyond the shallow water model.
description: 20 pages, 4 figures
NONPARAMETRIC MEASURES OF THE IMPACTS OF PUBLIC RESEARCH EXPENDITURES ON AUSTRALIAN BROADACRE AGRICULTURE: PRELIMINARY RESULTS
Creators: name: Cox, Thomas L.
name: Mullen, John D.
name: Hu, Wensheng
name: Cox, Thomas L.
name: Mullen, John D.
name: Hu, Wensheng
Publisher: name: Unknown
Year: 1996
Subjects: Research and Development/Tech Change/Emerging Technologies

description: Nonparametric methods are used to measure the impacts of public research expenditures on Australian broadacre agriculture over the 1953-94 period. The data and methods used were unable to recover separate impacts due to extension under several alternative specifications. Preliminary results using both unrestricted and 30 year lagged specifications of the research impacts on productivity suggest that while certain aspects of the recovered multi-input/output technologies are quite robust to alternative specifications (in particular, the associated Malmquist total factor productivity indexes), other aspects are less stable (in particular, the indexes on input (and to a lesser extent, output) biased technical change).
Warm-starting quantum optimization
Creators: name: Egger, Daniel J.
name: Marecek, Jakub
name: Woerner, Stefan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: There is an increasing interest in quantum algorithms for problems of integer programming and combinatorial optimization. Classical solvers for such problems employ relaxations, which replace binary variables with continuous ones, for instance in the form of higher-dimensional matrix-valued problems (semidefinite programming). Under the Unique Games Conjecture, these relaxations often provide the best performance ratios available classically in polynomial time. Here, we discuss how to warm-start quantum optimization with an initial state corresponding to the solution of a relaxation of a combinatorial optimization problem and how to analyze properties of the associated quantum algorithms. In particular, this allows the quantum algorithm to inherit the performance guarantees of the classical algorithm. We illustrate this in the context of portfolio optimization, where our results indicate that warm-starting the Quantum Approximate Optimization Algorithm (QAOA) is particularly beneficial at low depth. Likewise, Recursive QAOA for MAXCUT problems shows a systematic increase in the size of the obtained cut for fully connected graphs with random weights, when Goemans-Williamson randomized rounding is utilized in a warm start. It is straightforward to apply the same ideas to other randomized-rounding schemes and optimization problems.
Mobility gap in fractional quantum Hall liquids: Effects of disorder and layer thickness
Creators: name: Wan, Xin
name: Sheng, D. N.
name: Rezayi, E. H.
name: Yang, Kun
name: Bhatt, R. N.
name: Haldane, F. D. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the behavior of two-dimensional electron gas in the fractional quantum Hall regime in the presence of finite layer thickness and correlated disordered potential. Generalizing the Chern number calculation to many-body systems, we determine the mobility gaps of fractional quantum Hall states based on the distribution of Chern numbers in a microscopic model. We find excellent agreement between experimentally measured activation gaps and our calculated mobility gaps, when combining the effects of both disordered potential and layer thickness. We clarify the difference between mobility gap and spectral gap of fractional quantum Hall states and explain the disorder-driven collapse of the gap and the subsequent transitions from the fractional quantum Hall states to insulator.
description: 13 pages, 8 figures
Metaforikusság és szövegértés: metaforaazonosítás magyar mint idegen nyelvi érettségi vizsgaszövegekben
Creators: name: Havasi, Zsuzsanna
Publisher: name: Pannon Egyetem
Year: 2023

description: Alkalmazott nyelvtudomány, vol. 23. issue 3. Különszám. ISSN 1587-1061, eISSN 2498-4442
Price Discovery in the World Sugar Futures and Cash Markets: Implications for the Dominican Republic
Creators: name: Zapata, Hector O.
name: Fortenbery, T. Randall
name: Armstrong, Delroy
name: Zapata, Hector O.
name: Fortenbery, T. Randall
name: Armstrong, Delroy
Publisher: name: Unknown
Year: 2005
Subjects: Industrial Organization

description: This paper examines the relationship between #11 sugar futures prices traded in New York and the world cash prices for exported sugar. It was found that the futures market for sugar leads the cash market in price discovery. However, we fail to find evidence that changes in the cash price causes changes in futures price, that is, causality is unidirectional from futures to cash. The finding of cointegration between futures and cash prices suggests that the sugar futures contract is a useful vehicle for reducing overall market price risk faced by cash market participants selling at the world price (i.e., not enjoying favorable trade incentives). Further reliability on the usefulness of the WSF as a price discovery market is found through the impulse response functions; a shock in the futures price innovation generates a quick (one month) and positive response in futures and cash prices; but not vice versa.
Information Scrambling and Chaos in Open Quantum Systems
Creators: name: Zanardi, Paolo
name: Anand, Namit
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: Out-of-time-ordered correlators (OTOCs) have been extensively used over the last few years to study information scrambling and quantum chaos in many-body systems. In this paper, we extend the formalism of the averaged bipartite OTOC of Styliaris et al [Phys. Rev. Lett. 126, 030601 (2021)] to the case of open quantum systems. The dynamics is no longer unitary but it is described by more general quantum channels (trace preserving, completely positive maps). This "open bipartite OTOC" can be treated in an exact analytical fashion and is shown to amount to a distance between two quantum channels. Moreover, our analytical form unveils competing entropic contributions from information scrambling and environmental decoherence such that the latter can obfuscate the former. To elucidate this subtle interplay we analytically study special classes of quantum channels, namely, dephasing channels, entanglement-breaking channels, and others. Finally, as a physical application we numerically study dissipative many-body spin-chains and show how the competing entropic effects can be used to differentiate between integrable and chaotic regimes.
description: close to published version
A Hydraulic Analysis of the Channel Relocation of Stephens Creek
Creators: name: West, Eugene M.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1956
Subjects: subject: Transportation Engineering

description: Recently Mr. J.O. Cornell requested the assistance of the Drainage Section of the Research Laboratory in investigating the channel that the U.S. Corps of Engineers has designed in conjunction with the raising of Dam No. 39 and the changing of the locking system. The principal reason for this investigation was to determine the effect, if any, that this project will have upon the five-span highway bridge on U.S. 42, located approximately two thousand feet upstream from the confluence of Stephens Creek and the Ohio River and at the upstream end of the new channel.
AGRICULTURAL RESEARCH AND THE FUTURE OF AMERICAN AGRICULTURE
Creators: name: Ruttan, Vernon W.
name: Ruttan, Vernon W.
Publisher: name: Unknown
Year: 1980
Subjects: Research and Development/Tech Change/Emerging Technologies

description: In this paper I first review the sources that have accounted for growth of agricultural production in the past. I then examine the more recent evidence on the contribution of research to growth in agricultural production. Finally, I present some of my own perspectives on issues related to the support for agricultural research and the focus of agricultural research effort over the next several decades.
Supersymmetric WZ-Poisson sigma model and twisted generalized complex geometry
Creators: name: Calvo, Ivan
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: It has been shown recently that extended supersymmetry in twisted first-order sigma models is related to twisted generalized complex geometry in the target. In the general case there are additional algebraic and differential conditions relating the twisted generalized complex structure and the geometrical data defining the model. We study in the Hamiltonian formalism the case of vanishing metric, which is the supersymmetric version of the WZ-Poisson sigma model. We prove that the compatibility conditions reduce to an algebraic equation, which represents a considerable simplification with respect to the general case. We also show that this algebraic condition has a very natural geometrical interpretation. In the derivation of these results the notion of contravariant connections on twisted Poisson manifolds turns out to be very useful.
description: 11 pages. Proof of the theorem of Section 2 revised. Typos corrected. Version to appear in Lett.Math.Phys
CERTAINTY EQUIVALENT PRICES AND PRODUCER WELFARE UNDER OUTPUT PRICE UNCERTAINTY
Creators: name: Tsur, Yacov
name: Zilberman, David
name: Tsur, Yacov
name: Zilberman, David
Publisher: name: Unknown
Year: 1989
Subjects: Risk and Uncertainty

description: Producer welfare indices under price uncertainty are derived using the concept of certainty equivalent prices. In this approach the marginal cost function is used instead of the ex-ante supply function; the effects of uncertainty and risk preference are captured by certainty equivalent prices. Implications for welfare evaluation are discussed.
Klaus Rosen, Attila. Der Schrecken der Welt
Creators: name: Roberto, Umberto
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Klaus Rosen, Attila. Der Schrecken der Welt. Casa editrice C. H. Beck, Monaco di Baviera 2016. 320 pagine con 15 illustrazioni, 3 carte.
description: Bonner Jahrbücher, Bd. 217.2017(2018): Bonner Jahrbücher
THE ROLE OF THE PUBLIC SECTOR IN TECHNOLOGY DEVELOPMENT: GENERALIZATIONS FROM GENERAL PURPOSE TECHNOLOGIES
Creators: name: Ruttan, Vernon W.
name: Ruttan, Vernon W.
Publisher: name: Unknown
Year: 2001
Subjects: Research and Development/Tech Change/Emerging Technologies

description: In the new science and technology policy literature that emerged in the early 1980s it was held, while public support for science is appropriate, public support for technology development represents an unproductive use of public resources. The perspective that emerges in my recent book, Technology, Growth and Development: An Induced Innovation Perspective is quite different. Government has played an important role in technology development and transfer in almost every U.S. industry that has become competitive on a global scale.
Higher-Order Soft Corrections to Lepton Pair and Higgs Boson Production
Creators: name: Moch, S.
name: Vogt, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Utilizing recent three-loop results on the quark and gluon splitting functions and form factors, we derive the complete threshold-enhanced third-order (N^3LO) QCD corrections to the total cross sections for the production of lepton pairs and the Higgs boson in hadron collisions. These results, for the latter case obtained in the heavy top-quark limit, are employed to extend the threshold resummation for these processes to the fourth logarithmic order. We investigate the numerical impact of the higher-order corrections for Higgs boson production at the Tevatron and the LHC. Our results, suitably treated in Mellin N-space, provide a sufficiently accurate approximation to the full N^3LO contributions. Corrections of about 5% at the LHC and 10% at the Tevatron are found for typical Higgs masses. The N^3LO predictions exhibit a considerably reduced dependence on the renormalization scale with, for the first time, stationary points close to the Higgs mass.
description: 11 pages, LaTeX, 2 eps-figures. Slightly revised text of journal version, with two new references. Misprint in eq. (13) corrected
Model Study of Flow Through Culverts
Creators: name: West, Eugene M.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1956
Subjects: subject: Transportation Engineering

description: Within the past four years, the Highway Materials Research Laboratory has expended considerable effort upon investigating and developing new approaches to the problem of estimating the quantity of runoff from small drainage areas. Particular interest has been given to areas of sizes that require culverts or small bridges with less than twenty feet of span. The results of these studies have been included in the Drainage Manual recently adapted for use by the Department of Highways.
Electromagnetic Emission from a Binary Black Hole Merger Remnant in Plasma: Field Alignment and Plasma Temperature
Creators: name: Kelly, Bernard J.
name: Etienne, Zachariah B.
name: Golomb, Jacob
name: Schnittman, Jeremy D.
name: Baker, John G.
name: Noble, Scott C.
name: Ryan, Geoffrey
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Comparable-mass black-hole mergers generically result in moderate to highly spinning holes, whose spacetime curvature will significantly affect nearby matter in observable ways. We investigate how the moderate spin of a post-merger Kerr black hole immersed in a plasma with initially uniform density and uniform magnetic field affects potentially observable accretion rates and energy fluxes. Varying the initial specific internal energy of the plasma over two decades, we find very little change in steady-state mass accretion rate or Poynting luminosity, except at the lowest internal energies, where fluxes do not exhibit steady-state behavior during the simulation timescale. Fixing the internal energy and varying the initial fixed magnetic-field amplitude and orientation, we find that the steady-state Poynting luminosity depends strongly on the initial field angle with respect to the black hole spin axis, while the matter accretion rate is more stable until the field angle exceeds $\sim 45\degree$. The proto-jet formed along the black hole spin-axis conforms to a thin, elongated cylinder near the hole, while aligning with the asymptotic magnetic field at large distances.
description: 13 pages, 14 figures. Minor changes to match published version
Lara Dubosson-Sbriglione, Le culte de la Mère des dieux dans l’Empire romain
Creators: name: Wiegels, Rainer
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Lara Dubosson-Sbriglione, Le culte de la Mère des dieux dans l’Empire romain. Potsdamer Altertumswissenschaftliche Beiträge, Band 62. Verlag Franz Steiner, Stuttgart 2018. 551 Seiten mit mehreren Abbildungen und Umzeichnungen im Text.
description: Bonner Jahrbücher, Bd. 217.2017(2018): Bonner Jahrbücher
Fiddlers Green College: Looking for Equitable Workforce Pathways in Silicon Valley
Creators: name: Montoya, Jonathan
name: Peterson, Forest
name: Kinslow II, Anthony
name: Fruchter, Renate
name: Fischer, Martin
name: Bustamante, Andres Sebatian
Publisher: name: Journal of Problem Based Learning in Higher Education
Year: 2021

description: Often, research on the efficacy of postsecondary workforce programs does not convey their impact on true social mobility. The purpose of this study is to investigate project-based Career and Technical Education (CTE) workforce pathways in Silicon Valley. This study takes a step towards better understanding what constitutes the metrics that explain functioning pathways. In contributing to Project-Based Learning (PBL) theory, Amaral et al. (2015) found that seven PBL essentials form good learning outcomes; Creghan and Adair-Creghan (2015) then showed a measurable outcome of PBL is higher attendance, to which Plasman and Gottfried (2020), using a case of Applied STEM CTE (AS-CTE), framed attendance as a predictor of the efficacy of a workforce pathway. Recommendation: Through ethnography, the investigators observed that when social mobility was added as a metric of high quality PBL with AS-CTE in a predictive ontology framework of education success, an improved level of attendance was observed. The authors conclude that using the seven essentials and social mobility as a metric of PBL helps explain the observation of PBL’s improved efficacy. Hence, social mobility should be a metric of PBL AS-CTE program outcomes.
description: Journal of Problem Based Learning in Higher Education, Vol. 9 No. 1 (2021): Special Issue: Exploring the Near-future or Next Practice of PBL