cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Analysis of the $^6$He $β$ decay into the $α+d$ continuum within a three-body model
Creators: name: Tursunov, E. M.
name: Baye, D.
name: Descouvemont, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The beta-decay process of the $^6$He halo nucleus into the alpha+d continuum is studied in a three-body model. The $^6$He nucleus is described as an alpha+n+n system in hyperspherical coordinates on a Lagrange mesh. The convergence of the Gamow-Teller matrix element requires the knowledge of wave functions up to about 30 fm and of hypermomentum components up to K=24. The shape and absolute values of the transition probability per time and energy units of a recent experiment can be reproduced very well with an appropriate alpha+d potential. A total transition probability of 1.6E-6 s$^{-1}$ is obtained in agreement with that experiment. Halo effects are shown to be very important because of a strong cancellation between the internal and halo components of the matrix element, as observed in previous studies. The forbidden bound state in the alpha+d potential is found essential to reproduce the order of magnitude of the data. Comments are made on R-matrix fits.
description: 18 pages, 9 figures. Accepted for publication in Phys.Rev.C
Making GHG Emissions Trading Work - Crucial Issues in Designing National and International Emissions Trading Systems
Creators: name: Butzengeiger, Sonja
name: Betz, Regina
name: Bode, Sven
name: Butzengeiger, Sonja
name: Betz, Regina
name: Bode, Sven
Publisher: name: Unknown
Year: 2001
Subjects: Environmental Economics and Policy

description: Art. 17 of the Kyoto Protocol defines International Emissions Trading exclusively on country level, sub-national entities like industrial installations or households are not included initially. However, there are some arguments for such an expansion, of which the most important ones are a significant increase of the overall efficiency of the trading system as well as an increase of market liquidity. In the first part of this paper, the options for an inclusion of sub-national entities are analysed, concluding that AAUs should not be allocated to participants directly. Instead, there are several options how those entities can be included in International Emissions Trading as defined in the Kyoto-Protocol in an indirect way. The second part of the paper elaborates on the design options of national trading systems. All governments planning to introduce a domestic emissions trading scheme covering entities need to consider several design parameters, e.g. the characteristics of emission targets, participants of the trading scheme, participation mode, covered gases, non-compliance provisions, etc. We analyse and evaluate the options for each of those aspects, having in mind that the design of a trading system must assure its environmental integrity and keep transaction costs low at the same time. Der "Internationale Emissionshandel (IET)" wird nach Artikel 17 des Kyoto-Protokolls zunächst ausschließlich auf Staatenebene definiert. Es sprechen jedoch einige Gründe dafür, den Emissionshandel auch auf nicht staatliche Einheiten, wie z.B. industrielle und/oder private Emittenten auszudehnen. Die wesentlichen Vorteile sind die zu erwartende deutliche Erhöhung der Effizienz des Handelssystems sowie der Marktliquidität. Wir analysieren die verschiedenen Möglichkeiten einer derartigen Ausweitung des Emissionshandels. Eine direkte Einbeziehung subnationaler Einheiten durch die Zuteilung von Emissionsrechten nach dem Kyoto-Protokoll (AAUs) in den IET erscheint nicht empfehlenswert. Statt dessen bestehen verschiedene Möglichkeiten der indirekten Einbeziehung, bei der nationale "Währungen" für Emissionsrechte ausgegeben werden. Zudem werden die verschiedenen Ausgestaltungsparameter analysiert, die bei der Einrichtung eines (inter-)nationalen Emissionshandelssystems berücksichtigt werden müssen. Dies sind u.a. die Definition von Teilnehmerkreis, Teilnahmemodus, Art der Emissionsziele, Einbeziehung von Gasen, Einbeziehung der projektbasierten Mechanismen sowie Strafregelungen. Die einzelnen Ausgestaltungsoptionen werden evaluiert, insbesondere hinsichtlich der grundlegenden Ziele des Emissionshandels: Sicherung der ökologischen Integrität bei Minimierung der entstehenden Kosten.
Nash SIR: An Economic-Epidemiological Model of Strategic Behavior During a Viral Epidemic
Creators: name: McAdams, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Theoretical Economics (econ.TH)
subject: FOS: Economics and business

description: This paper develops a Nash-equilibrium extension of the classic SIR model of infectious-disease epidemiology ("Nash SIR"), endogenizing people's decisions whether to engage in economic activity during a viral epidemic and allowing for complementarity in social-economic activity. An equilibrium epidemic is one in which Nash equilibrium behavior during the epidemic generates the epidemic. There may be multiple equilibrium epidemics, in which case the epidemic trajectory can be shaped through the coordination of expectations, in addition to other sorts of interventions such as stay-at-home orders and accelerated vaccine development. An algorithm is provided to compute all equilibrium epidemics.
The Impact of Optimal Tariffs and Taxes on Agglomeration
Creators: name: Ross, Matthias
name: Ross, Matthias
Publisher: name: Unknown
Year: 2002
Subjects: subject: Political Economy
subject: optimal tariffs
subject: optimal taxation
subject: policy coordination
subject: economic geography
subject: economic integration

description: This paper extends an economic geography model by tariffs to analyze their impact on welfare and sustainability of agglomerations. Policies with and without cooperation are compared, with the goal of maximizing aggregated welfare in the former and regional welfare in the latter case. The main result is that under cooperation poorer regions are worse off in two respects. In the short-run they loose even more welfare and in the long-run sustainable agglomerations in richer regions get more likely. Thus, although cooperation could generate aggregated welfare gains the potential losers face even in the short-run no incentive to remove tariffs unless they are compensated appropriately, for instance by transfers. In this sense transfers from the rich to the poor are not only a policy to reach the goal of equity but also a necessary precondition to reach aggregated efficiency.
Landau Quantized Dynamics and Spectrum of the Diced Lattice
Creators: name: Horing, N. J. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this work the role of magnetic Landau quantization in the dynamics and spectrum of Diced Lattice charge carriers is studied in terms of the associated pseudospin 1 Green's function. The equations of motion for the 9 matrix elements of this Green's function are formulated in position/frequency representation and are solved explicitly in terms of a closed form integral representation involving only elementary functions. The latter is subsequently expanded in a Laguerre eigenfunction series whose frequency poles identify the discretized energy spectrum for the Landau-quantized Diced Lattice as $ε_n = \pm\sqrt{2(2n+1)α^2 eB}$ ($α\sqrt{2}$ is the characteristic speed for the Diced Lattice) which differs significantly from the nonrelativistic linear dependence of $ε_n$ on $B$, and is similar to the corresponding $\sqrt{B}-$dependence of other Dirac materials (Graphene, Group VI Dichalcogenides).
Haeny, Gerhard und Leibundgut, Annalis und Kasser, Rodolphe: Kôm Qouçoû 'Isa 366 und seine Kirchenanlagen
Creators: name: Scholz, Piotr O.
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 91 (2007): Oriens christianus, Band 91
$Pin^c$ and Lipschitz structures on products of manifolds
Creators: name: Bobienski, Marcin
name: Trautman, Andrzej
Publisher: name: arXiv
Year: 2005
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53C27,57R15

description: The topological condition for the existence of a $pin^c$ structure on the product of two Riemannian manifolds is derived and applied to construct examples of manifolds having the weaker Lipschitz structure, but no $pin^c$ structure. An example of a five-dimensional manifold with this property is given; it is pointed out that there are no manifolds of lower dimension with this property.
description: 10 pages
An Account of Geographic Concentration Patterns in Europe
Creators: name: Brulhart, Marius
name: Traeger, Rolf
name: Brulhart, Marius
name: Traeger, Rolf
Publisher: name: Unknown
Year: 2003
Subjects: subject: Community/Rural/Urban Development
subject: geographic concentration
subject: EU regions
subject: centre-periphery gradients
subject: entropy indices
subject: bootstrap inference

description: Using entropy indices and associated bootstrap tests, we describe the distribution of economic sectors across Western European regions over the 1975-2000 period. We decompose geographic concentration into its within-country and between-country components. In addition, we estimate centre-periphery gradients in sectoral location patterns and the impact of EU membership on countries' internal geography. It is found that manufacturing has become gradually more concentrated, although the locational bias towards central regions has become weaker. Conversely, market services have been relocating towards centrally located regions. EU integration appears to have strengthened countries' internal concentration trends.
Slowly divergent geodesics in moduli space
Creators: name: Cheung, Y.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Dynamical Systems (math.DS)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 37D40 (Primary) 11P21 (Secondary)

description: Slowly divergent geodesics in the moduli space of Riemann surfaces of genus at least 2 are constructed via cyclic branched covers of the torus. Nonergodic examples (i.e. geodesics whose defining quadratic differential has nonergodic vertical foliation) diverging to infinity at sublinear rates are constructed using a Diophantine condition. Examples with an arbitrarily slow prescribed growth rate are also exhibited.
description: 26 pages, no figures
A note on the Deser-Tekin charges
Creators: name: Petrov, A. N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Perturbed equations for an arbitrary metric theory of gravity in $D$ dimensions are constructed in the vacuum of this theory. The nonlinear part together with matter fields are a source for the linear part and are treated as a total energy-momentum tensor. A generalized family of conserved currents expressed through divergences of anti-symmetrical tensor densities (superpotentials) linear in perturbations is constructed. The new family generalizes the Deser and Tekin currents and superpotentials in quadratic curvature gravity theories generating Killing charges in dS and AdS vacua. As an example, the mass of the $D$-dimensional Schwarzschild black hole in an effective AdS spacetime (a solution in the Einstein-Gauss-Bonnet theory) is examined.
description: LATEX, 7 pages, no figures
q-Gaussian distributions. Simplifications and simulations
Creators: name: Szabłowki, Paweł J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62E17, 60E05, 68U20, 65C05

description: We present some properties of measures (q-Gaussian) that orthogonalize the set of q-Hermite polynomials. We also present an algorithm for simulating i.i.d. sequences of random variables having q-Gaussian distribution.
description: 13 pages
Non-Holonomic Control I
Creators: name: Brion, E.
name: Akulin, V. M.
name: Comparat, D.
name: Dumer, I.
name: Gershkovich, V.
name: Harel, G.
name: Kurizki, G.
name: Mazets, I.
name: Pillet, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we present a universal control technique, the non-holonomic control, which allows us to impose any arbitrarily prescribed unitary evolution to any quantum system through the alternate application of two well-chosen perturbations.
Spatial Structural Change - Evidence and Prospects
Creators: name: Bade, Franz-Josef
name: Niebuhr, Annekatrin
name: Schonert, Matthias
name: Bade, Franz-Josef
name: Niebuhr, Annekatrin
name: Schonert, Matthias
Publisher: name: Unknown
Year: 2000
Subjects: International Development

description: Main topics of the following analysis are the development of spatial structure and the question whether the economic disparities between agglomerations and peripheral areas will con- or diverge. Frequently, economic disparities are measured by per capita income. Because of the relationship between income growth and employment change, a separate analysis of both quantitative components seems to be more appropriate. Furthermore, to reduce the uncertainty concerning the future development of regional disparities human capital - owing to its decisive importance for economic and technological competitiveness - is considered as well. Consequently this study of regional disparities is based on the analysis of time-series for several indicators from 1976 to 1996. Due to this long period the data is constrained to the old FRG. The central tendencies of spatial structural change - on the one side (relative) gains of urban fringe and peripheral areas, on the other side (relative) losses of agglomerations and their centres - prove to be extremely stable for all indicators on the level of spatial categories. The stability of spatial structural change suggests that the deconcentration process will continue in the near future. Die folgende Analyse beschäftigt sich mit der Entwicklung des räumlichen Strukturwandels und der Frage, ob die Unterschiede in der Wirtschaftskraft zwischen Verdic htungsräumen und ländlich-peripheren Regionen kon- oder divergieren. Üblicherweise wird die Wirtschaftskraft mit dem Pro-Kopf-Einkommen bewertet. Aufgrund der Zusammenhänge zwischen Einkommens- und Beschäftigungsentwicklung erscheint eine getrennte Analyse der Indikatoren angemessener. Um die Unsicherheit, die bezüglich der zukünftigen Entwicklung regionaler Disparitäten besteht, zu reduzieren, wird zudem das regionale Humankapital analysiert, weil das Humankapital eine zentrale Determinante der Wettbewerbsfähigkeit von Regionen ist. Die Untersuchung regionaler Disp aritäten basiert auf Zeitreihen für mehrere Indikatoren von 1976 bis 1996, die sich au fgrund des langen Zeitraums auf die alten Bundesländer beschränken. Die zentralen Tendenzen des räumlichen Strukturwandels - auf der einen Seite (relative) Gewinne sowohl des Verdichtungsumlandes als auch der peripheren Regionen, auf der anderen Seite (relative) Verluste sowohl der Verdichtungszentren als auch der Verdichtung sräume insgesamt - erweisen sich in den Analysen als äußerst stabil. Die Stabilität des räumlichen Strukturwandels deutet eher auf eine Fortsetzung der räumlichen Dekonzentration als auf eine Umkehr der Disurbanisierung zugunsten der Verdichtungsräume hin.
A divergent Teichmuller geodesic with uniquely ergodic vertical foliation
Creators: name: Cheung, Y.
name: Masur, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37D40

description: We construct an example of a quadratic differential whose vertical foliation is uniquely ergodic and such that the Teichmuller geodesic determined by the quadratic differential diverges in the moduli space of Riemann surfaces.
description: 16 pages, 3 figures
ҲАВО ТРАНСПОРТИ ОБЪЕКТЛАРИДА СОДИР ЭТИЛАДИГАН БОШҚА ЖИНОЯТЛАРГА ҚАРШИ КУРАШИШ БОРАСИДА ТЕЗКОР-ҚИДИРУВ ЧОРА-ТАДБИРЛАРИНИ АМАЛГА ОШИРИШНИНГ ЎЗИГА ХОСЛИКЛАРИ
Creators: name: Мавлонов, Авазхон
Publisher: name: Zenodo
Year: 2024

description: Ҳаво транспорти объектларида жиноятларга қарши курашишда тезкор-қидирув тадбирларининг ўзига хос хусусиятлари жиноятларнинг халқаро характерга эгалиги ва юқори технологиялардан фойдаланиш талаб этилиши билан белгиланади. Бунда халқаро ҳамкорлик, ахборот алмашинуви ва замонавий технологиялардан фойдаланиш муҳим аҳамият касб этади.
Pendant Drop Tensiometry: A Machine Learning Approach
Creators: name: Kratz, Felix
name: Kierfeld, Jan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Machine Learning (cs.LG)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Modern pendant drop tensiometry relies on numerical solution of the Young-Laplace equation and allow to determine the surface tension from a single picture of a pendant drop with high precision. Most of these techniques solve the Young-Laplace equation many times over to find the material parameters that provide a fit to a supplied image of a real droplet. Here we introduce a machine learning approach to solve this problem in a computationally more efficient way. We train a deep neural network to determine the surface tension of a given droplet shape using a large training set of numerically generated droplet shapes. We show that the deep learning approach is superior to the current state of the art shape fitting approach in speed and precision, in particular if shapes in the training set reflect the sensitivity of the droplet shape with respect to surface tension. In order to derive such an optimized training set we clarify the role of the Worthington number as quality indicator in conventional shape fitting and in the machine learning approach. Our approach demonstrates the capabilities of deep neural networks in the material parameter determination from rheological deformation experiments in general.
Handels- und Finanz- architektur im Umbruch: Globale Integration und die institutionelle Arbeitsteilung von IWF, Weltbank und WTO
Creators: name: Hefeker, Carsten
name: Hefeker, Carsten
Publisher: name: Unknown
Year: 2003
Subjects: subject: Financial Economics
subject: Internationale Organisationen
subject: Bürokratietheorie
subject: Handels- und Finanzarchitektur.

description: Das Papier untersucht die Rolle von IWF, Weltbank und WTO und ihre Arbeitsteilung. Ich diskutiere die Gründe für ihre Existenz und ihre ursprünglichen Aufgaben und frage, inwieweit es ihnen gelungen ist, sich den veränderten Bedingungen und ihren neuen Aufgaben anzupassen. Politisch-ökonomische Überlegungen demonstrieren, dass die Organisationen ihren Eigennutz maximieren, andererseits aber auch als Instrument der Mitgliedsländer missbraucht werden. Dies erklärt, warum die Organisationen nicht immer erfolgreich gewesen sind. Mögliche Vorschläge für eine Reform warden diskutiert.
Hilbert 90 for biquadratic extensions
Creators: name: Dwilewicz, Roman
name: Minac, Jan
name: Schultz, Andrew
name: Swallow, John
Publisher: name: arXiv
Year: 2005
Subjects: subject: Number Theory (math.NT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 12F10; 12G05

description: Hilbert's Theorem 90 is a classical result in the theory of cyclic extensions. The quadratic case of Hilbert 90, however, generalizes in noncyclic directions as well. Informed by a poem of Richard Wilbur, the article explores several generalizations, discerning connections among multiplicative groups of fields, values of binary quadratic forms, a bit of module theory over group rings, and even Galois cohomology.
description: v2 (15 pages); followed Monthly style sheet and added additional exposition
XII Международная научно-практическая конференция «Вызовы глобализации и развитие цифрового общества в условиях новой реальности»
Creators: name: ООО "Институт развития образования и консалтинга"
Publisher: name: ООО "Институт развития образования и консалтинга"
Year: 2024

description: XII Международная научно-практическая конференция «Вызовы глобализации и развитие цифрового общества в условиях новой реальности»
van der Vliet, Jaques: Catalogue of the Coptic inscriptions in the Sudan National Museum at Khartoum (I. Khartoum Copt.)
Creators: name: Scholz, Piotr O.
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 91 (2007): Oriens christianus, Band 91
Heterogeneous partition of cellular blood-borne nanoparticles through microvascular bifurcations
Creators: name: Liu, Zixiang L.
name: Clausen, Jonathan R.
name: Wagner, Justin L.
name: Butler, Kimberly S.
name: Bolintineanu, Dan S.
name: Lechman, Jeremy B.
name: Rao, Rekha R.
name: Aidun, Cyrus K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Biological Physics (physics.bio-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Blood flowing through microvascular bifurcations has been an active research topic for many decades, while the partitioning pattern of nanoscale solutes in the blood remains relatively unexplored. Here, we demonstrate a multiscale computational framework for direct numerical simulation of the nanoparticle (NP) partitioning through physiologically-relevant vascular bifurcations in the presence of red blood cells (RBCs). The computational framework is established by embedding a newly-developed particulate suspension inflow/outflow boundary condition into a multiscale blood flow solver. The computational framework is verified by recovering a tubular blood flow without a bifurcation and validated against the experimental measurement of an intravital bifurcation flow. The classic Zweifach-Fung (ZF) effect is shown to be well captured by the method. Moreover, we observe that NPs exhibit a ZF-like heterogeneous partition in response to the heterogeneous partition of the RBC phase. The NP partitioning prioritizes the high-flow-rate daughter branch except for extreme (large or small) suspension flow partition ratios under which the complete phase separation tends to occur. By analyzing the flow field and the particle trajectories, we show that the ZF-like heterogeneity in NP partition can be explained by the RBC-entrainment effect caused by the deviation of the flow separatrix preceded by the tank-treading of RBCs near the bifurcation junction. The recovery of homogeneity in the NP partition under extreme flow partition ratios is due to the plasma skimming of NPs in the cell-free layer. These findings, based on the multiscale computational framework, provide biophysical insights to the heterogeneous distribution of NPs in microvascular beds that are observed pathophysiologically.
The Unusual Eruption of the Extragalactic Classical Nova M31N 2017-09a
Creators: name: Lloyd, Christopher
name: Cook, Lewis M.
name: Kiyota, Seiichiro
name: Tan, Hanjie
name: Hu, Di
name: Shi, Wei
name: Zhang, Mi
name: Zhang, Shenwei
name: Zhang, Xiaowei
name: Zhao, Jingyuan
name: Sun, Guoyou
name: Gao, Xing
name: Boyd, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: M31N 2017-09a is a classical nova and was observed for some 160 days following its initial eruption, during which time it underwent a number of bright secondary outbursts. The light-curve is characterized by continual variation with excursions of at least 0.5 magnitudes on a daily time-scale. The lower envelope of the eruption suggests that a single power-law can describe the decline rate. The eruption is relatively long with $t_2 = 111$, and $t_3 = 153$ days.
description: 8 pages, 3 figures
Diophantine Integrability
Creators: name: Halburd, R. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The heights of iterates of the discrete Painleve equations over number fields appear to grow no faster than polynomials while the heights of generic solutions of non-integrable discrete equations grow exponentially. This gives rise to a simple and effective numerical test for the integrability of discrete equations. Numerical evidence and theoretical results are presented. Connections with other tests for integrability and Vojta's dictionary are discussed.
description: 6 pages, 4 figures
Non-holonomic Control II : Non-holonomic Quantum Devices
Creators: name: Brion, E.
name: Akulin, V. M.
name: Comparat, D.
name: Dumer, I.
name: Gershkovich, V.
name: Harel, G.
name: Kurizki, G.
name: Mazets, I.
name: Pillet, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we show how the non-holonomic control technique can be employed to build completely controlled quantum devices. Examples of such controlled structures are provided.
Lajtar, Adam: Catalogue on the Greek inscriptions in the Sudan National Museum at Khartoum (I. Khartoum Greek)
Creators: name: Scholz, Piotr O.
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 91 (2007): Oriens christianus, Band 91
A New Proof on Net Upscale Energy Cascade in 2D and QG Turbulence
Creators: name: Gkioulekas, Eleftherios
name: Tung, Ka Kit
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: A general proof that more energy flows upscale than downscale in two-dimensional (2D) turbulence and barotropic quasi-geostrophic (QG) turbulence is given. A proof is also given that in Surface QG turbulence, the reverse is true. Though some of these results are known in restricted cases, the proofs given here are pedagogically simpler, require fewer assumptions and apply to both forced and unforced cases.
description: v1: submitted to J. Fluid. Mech v2: revised and accepted by J. Fluid. Mech, 17 pages
Probing Exotic Physics With Cosmic Neutrinos
Creators: name: Hooper, Dan
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Traditionally, collider experiments have been the primary tool used in searching for particle physics beyond the Standard Model. In this talk, I will discuss alternative approaches for exploring exotic physics scenarios using high energy and ultra-high energy cosmic neutrinos. Such neutrinos can be used to study interactions at energies higher, and over baselines longer, than those accessible to colliders. In this way, neutrino astronomy can provide a window into fundamental physics which is highly complementary to collider techniques. I will discuss the role of neutrino astronomy in fundamental physics, considering the use of such techniques in studying several specific scenarios including low scale gravity models, Standard Model electroweak instanton induced interactions, decaying neutrinos and quantum decoherence.
description: 11 pages, 6 figures; For the proceedings of From Colliders To Cosmic Rays, Prague, Czech Republic, September 7-13, 2005
On a relation of pseudoanalytic function theory to the two-dimensional stationary Schroedinger equation and Taylor series in formal powers for its solutions
Creators: name: Kravchenko, Vladislav V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: Complex Variables (math.CV)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 30G20; 35J10

description: We consider the real stationary two-dimensional Schroedinger equation. With the aid of any its particular solution we construct a Vekua equation possessing the following special property. The real parts of its solutions are solutions of the original Schroedinger equation and the imaginary parts are solutions of an associated Schroedinger equation with a potential having the form of a potential obtained after the Darboux transformation. Using L. Bers theory of Taylor series for pseudoanalytic functions we obtain a locally complete system of solutions of the original Schroedinger equation which can be constructed explicitly for an ample class of Schroedinger equations. For example it is possible, when the potential is a function of one cartesian, spherical, parabolic or elliptic variable. We give some examples of application of the proposed procedure for obtaining a locally complete system of solutions of the Schroedinger equation. The procedure is algorithmically simple and can be implemented with the aid of a computer system of symbolic or numerical calculation.
Magnetization transfer from protons to quadrupolar nuclei in solid-state NMR using PRESTO or dipolar-mediated refocused INEPT methods
Creators: name: Giovine, Raynald
name: Trébosc, Julien
name: Pourpoint, Frédérique
name: Lafon, Olivier
name: Amoureux, Jean-Paul
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We compare here the performances of two approaches to achieve such transfer: PRESTO (Phase-shifted Recoupling Effects a Smooth Transfer of Order), which is currently the method of choice to achieve the magnetization transfer from protons to quadrupolar nuclei and which has been shown to supersede Cross-Polarization under Magic-Angle Spinning (MAS) for quadrupolar nuclei and D-RINEPT (Dipolar-mediated Refocused Insensitive Nuclei Enhanced by Polarization Transfer) using symmetry-based SR4${}_1{}^2$ recoupling, which has already been employed to transfer the magnetization in the reverse way from half-integer quadrupolar spin to protons. We also test the PRESTO sequence with R16${}_7{}^6$ recoupling using 270${}_0$90${}_180$ composite $π$-pulses as inversion elements. This recoupling scheme has not so far been employed to reintroduce dipolar couplings with protons. These various techniques to transfer the magnetization from protons to quadrupolar nuclei are analyzed using (i) an average Hamiltonian theory, (ii) numerical simulations of spin dynamics, and (iii) experimental ${}^1$H $\rightarrow {}^{27}$Al and ${}^{1}$H $\rightarrow {}^{17}$O transfers in as-synthesized AlPO4-14 and ${}^{17}$O-labelled fumed silica, respectively. The experiments and simulations are done at two magnetic fields (9.4 and 18.8 T) and several spinning speeds (15, 18-24 and 60 kHz). This analysis indicates that owing to its $γ$-encoded character, PRESTO yields the highest transfer efficiency at low magnetic fields and MAS frequencies, whereas owing to its higher robustness to rf-field inhomogeneity and chemical shifts, D-RINEPT is more sensitive at high fields and MAS frequencies, notably for protons exhibiting large offset or CSA, such as those involved in hydrogen bonds.
Non-Holonomic Control III : Coherence Protection by the Quantum Zeno Effect and Non-Holonomic Control
Creators: name: Brion, E.
name: Akulin, V. M.
name: Comparat, D.
name: Dumer, I.
name: Gershkovich, V.
name: Harel, G.
name: Kurizki, G.
name: Mazets, I.
name: Pillet, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we present a coherence protection method based upon a multidimensional generalization of the Quantum Zeno Effect, as well as ideas from the coding theory. The non-holonomic control technique is employed as a physical tool which allows its effective implementation. The two limiting cases of small and large quantum systems are considered.
Predicting the long time dynamic heterogeneity in a supercooled liquid on the basis of short time heterogeneities
Creators: name: Widmer-Cooper, Asaph
name: Harrowell, Peter
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We report that the local Debye-Waller factor in a simulated 2D glass-forming mixture exhibits significant spatial heterogeneities and that these short time fluctuations provide an excellent predictor of the spatial distribution of the long time dynamic propensities [Phys.Rev.Lett. 93, 135701 (2004)]. In contrast, the potential energy per particle of the inherent structure does not correlate well with the spatially distributed dynamics.
Ramos, Manuel João und Boavida, Isabel: The Indigenous and the Foreign in Christian Ethiopian Art
Creators: name: Scholz, Piotr O.
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 91 (2007): Oriens christianus, Band 91
Characterization of the C-terminal protein tyrosine phosphatase-like domain of CD45
Creators: name: Felberg, Jackie
Publisher: name: University of British Columbia
Year: 2009

description: CD45 is a transmembrane two-domain protein tyrosine phosphatase (PTP) essential for thymocyte development and B cell maturation. Its tyrosine phosphatase activity is required for efficient signal transduction initiated by lymphocyte antigen receptors. As with most transmembrane two-domain phosphatases, the role of the second, C-terminal domain, D2, is unclear. To investigate the role of D2 and to determine if it plays a role in regulating CD45 activity, substrate specificity, or molecular interactions, recombinant proteins containing the first, N-terminal PTP domain, D1, without D2, and D2 without D1, were expressed and purified from E. coli and analyzed. It was found that a purified D1 recombinant protein dimerized, and was enzymatically active in the absence of PTP-D2, whereas no phosphatase activity was detected for D2 which was a monomer in solution. D2 enhanced activity of Dl in the monomeric full length CD45 cytoplasmic domain protein (D1/D2), and this was shown to be specific to a PTP domain, as the Lck SH2 domain could not substitute for D2. Specific binding of the recombinant 6His-Dl to a recombinant GST-D2 protein, and the association of N - and C- terminal tryptic fragments of 6His-Dl/D2 provided evidence for an intramolecular interaction occurring in the CD45 cytoplasmic domain. Co-purification of 6His-Dl and GST-D2 from E. coli indicated that this is a stable interaction resulting in increased stability of Dl. This interaction did not require the acidic region unique to D2. It was, however, affected by a destabilizing point mutation, Q1180G, in D2. No evidence was obtained for a role for D2 in determining substrate specificity using a panel of peptide substrates or between full length Src family kinase protein substrates. However in in vitro binding assays, 6His-D2 preferentially bound to its proposed physiological substrate, the Src family kinase p56lck, expressed as a GST fusion protein, compared to a related, non-Src family tyrosine kinase, GST-Csk. Using in vitro binding assays, it was determined that CD45-D2 bound to the kinase domain of Lck, and this interaction did not require the acidic region in D2. The interaction was independent of the tyrosine phosphorylation state of Lck, and 6His-D2 did not bind phosphotyrosine.
White Paper on the Case for Landed Mercury Science
Creators: name: Byrne, Paul K.
name: Blewett, David T.
name: Chabot, Nancy L.
name: Hauck, Steven A.
name: II
name: Mazarico, Erwan
name: Kaaden, Kathleen E. Vander
name: Vervack, Ronald J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We advocate for establishing key scientific priorities for the future of Mercury exploration, including the development of specific science goals for a landed mission. We support the Mercury science community in fostering closer collaboration with ongoing and planned exoplanet investigations. The continued exploration of Mercury should be conceived as a multi-mission, multi-generational effort, and that the landed exploration of Mercury be a high scientific priority in the coming decade.
description: 8 pages, 6 figures, white paper prepared for the NASEM Planetary Science and Astrobiology Decadal Survey 2023-2032
Trustworthy Virtual Measurements in Battery Manufacturing
Creators: name: Krebs, Lukas
name: Müller, Tobias
name: Schmitt, Robert H.
Publisher: name: DataNinja sAIOnARA Conference
Year: 2024

description: The growing demand for electric cars necessitates an increase in battery production efficiency and cost-effectiveness. Through a reduction of the joint testing efforts an increase of productivity can be accomplished. To achieve the reduction, remain on a high level of quality standards and increase the informational content about current production the use of virtual measurements is examined. Ensuring the trustworthiness of virtual measurements is crucial for informed decision making, necessitating validation. This paper explores the requirements and challenges in battery manufacturing for implementing trustworthy virtual measurements. Two central requirements are identified to enable virtual measurements. Firstly, a traceability system based on the production meta-model is needed to track process parameters and quality characteristics. Secondly, a framework is proposed to facilitate reliable virtual measurements. The primary challenge for virtual measurement in battery manufacturing systems from the complexity of the process chain and products. It is crucial to assess how virtual measurements perform across various processes and to evaluate their transferability to different process parameters and products.
description: DataNinja sAIOnARA Conference, DataNinja sAIOnARA 2024 Conference
Concept Extraction for Time Series With ECLAD
Creators: name: Holzapfel, Antonia
name: Posada-Moreno, Andres Felipe
name: Trimpe, Sebastian
Publisher: name: DataNinja sAIOnARA Conference
Year: 2024

description: Concept Extraction (CE) methods are being increasingly used in the image domain for explaining deep learning models, which are not inherently interpretable. However, there have not been transfer studies yet for their usage in the time series domain. The purpose of this work is to explore the use of CE methods in time series. We propose to modify the ECLAD algorithm for this domain by changing the latent space representation used to extract concepts. This method is then tested on an InceptionTime model trained on the Gunpoint dataset. Preliminary results show that we can successfully extract concepts from time series models on datasets with local features and provide conceptual explanations that effectively explain how the model works.
description: DataNinja sAIOnARA Conference, DataNinja sAIOnARA 2024 Conference
Distributive Justice of Resource Allocation Through Artificial Intelligence
Creators: name: Hellwig, Paul
name: Maier, Günter W.
Publisher: name: DataNinja sAIOnARA Conference
Year: 2024

description: Artificial intelligence will take over leadership functions such as rewarding employee performance. It will therefore make decisions about employee outcomes and most likely allocate different resources to employees. Resource Theory of Social Exchange distinguishes six resource classes. The theory postulates that the value of some resources depend on the identity of the provider of the resource and on the relationship with the provider. This raises the question of whether certain resources, such as the resource affiliation, have a value when they are allocated by artificial intelligence. This contribution calls for studies that investigate the value of different resources allocated by artificial intelligence in leadership functions.
description: DataNinja sAIOnARA Conference, DataNinja sAIOnARA 2024 Conference
Supernova neutrinos can tell us the neutrino mass hierarchy independently of flux models
Creators: name: Barger, V.
name: Huber, Patrick
name: Marfatia, Danny
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We demonstrate that the detection of shock modulations of the neutrino spectra from a galactic core-collapse supernova is sufficient to obtain a high significance determination of the neutrino mass hierarchy if the supernova event is observed in both a Mton-class water Cherenkov detector and a 100 kton-class liquid argon detector. Neither detailed supernova neutrino flux modelling nor observation of Earth matter effects is needed for this determination. As a corollary, a nonzero value of θ_x will be established.
description: 16 pages, 3 figures. Version to appear in PLB
Non-Holonomic Control IV : Coherence Protection in a Rubidium isotope
Creators: name: Brion, E.
name: Akulin, V. M.
name: Comparat, D.
name: Dumer, I.
name: Gershkovich, V.
name: Harel, G.
name: Kurizki, G.
name: Mazets, I.
name: Pillet, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we present a realistic application of the coherence protection method proposed in the previous article. A qubit of information encoded on the two spin states of a Rubidium isotope is protected from the action of electric and magnetic fields.
Interpretable Machine Learning via Linear Temporal Logic
Creators: name: Lutz, Simon
name: Neider, Daniel
Publisher: name: DataNinja sAIOnARA Conference
Year: 2024

description: In recent years, deep neural networks have shown excellent performance, outperforming even human experts in various tasks. However, their inherent complexity and black-box nature often make it hard, if not impossible, to understand the decisions made by these models, hindering their practical application in high-stakes scenarios.

We propose a framework for learning LTL formulas as inherently interpretable machine learning models. These models can be trained both in a supervised and unsupervised setting. Furthermore, they can easily be extended to handle noisy data and to incorporate expert knowledge.
description: DataNinja sAIOnARA Conference, DataNinja sAIOnARA 2024 Conference
Approaches to the implementation of generalized complex numbers in the Julia language
Creators: name: Gevorkyan, Migran N.
name: Korolkova, Anna V.
name: Kulyabov, Dmitry S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Software (cs.MS)
subject: FOS: Computer and information sciences

description: In problems of mathematical physics, to study the structures of spaces using the Cayley-Klein models in theoretical calculations, the use of generalized complex numbers is required. In the case of computational experiments, such tasks require their high-quality implementation in a programming language. The proposed small implementation of generalized complex numbers in modern programming languages have several disadvantages. In this article, we propose using the Julia language as the language for implementing generalized complex numbers, not least because it supports the multiple dispatch mechanism. The paper demonstrates the approach to the implementation of one of the types of generalized complex numbers, namely dual numbers. We place particular emphasis on the description of the use of the multiple dispatch mechanism to implement a new numerical type. The resulting implementation of dual numbers can be considered as a prototype for a complete software module for supporting generalized complex numbers.
description: in English; in Russian
APEX ORGANIZATIONS AND THE GROWTH OF MICROFINANCE IN BOLIVIA
Creators: name: Navajas, Sergio
name: Schreiner, Mark
name: Navajas, Sergio
name: Schreiner, Mark
Publisher: name: Unknown
Year: 1998
Subjects: Agricultural Finance

description: Bolivia has the most advanced microfinance sector in Latin America and has been a model worldwide. Apex banks- banks that lend to banks - have not been responsible for this success. Apex banks can provide funds for retail microfinance organizations, and/or strengthen their organizational development. The existing apex has done little market development. It has provided some liquidity to microfinance organizations, but it has not played an indispensable role. The various apexes planned for the future are unneeded. In fact, they may disincentive deposit mobilization and create an unfair playing field and thus hurt microfinance in Bolivia.
Study on the Influence of Texture Variation on the Validation Performance of a Synthetically Trained Object Detector
Creators: name: Moriz, Alexander
name: Wolfschläger, Dominik
name: Schmitt, Robert H.
Publisher: name: DataNinja sAIOnARA Conference
Year: 2024

description: In recent years, the utilization of synthetic data for the training of Deep Learning (DL) approaches has emerged as a valid alternative to the costly process of real data acquisition. Yet, the influence of the sim-to-real gap on the model performance still poses an obstacle to the broader usage of synthetic data. To investigate the major contributing factors, this study focuses on the influence of texture variation as a first step. Examining different strategies for generating synthetic validation sets for the training process of an object detector, the results of this study indicate that the sole influence of textures is insufficient to cause the observable performance gap alone.
description: DataNinja sAIOnARA Conference, DataNinja sAIOnARA 2024 Conference
Poverty in Nepal: A Causal Analysis
Creators: name: Bhusal, Manoj
Publisher: name: figshare
Year: 2020
Subjects: subject: 140202 Economic Development and Growth
subject: FOS: Economics and business
subject: Economics
subject: 140102 Macroeconomic Theory
subject: Sociology
subject: FOS: Sociology
subject: 140218 Urban and Regional Economics
subject: 140219 Welfare Economics

description: This short essay discusses the issue of poverty in Nepal. Despite a number of poverty-reduction programs run by a myriad of actors, poverty in Nepal is still rampant, and the country remains one of the poorest countries in the world.In this essay, I argue that many poverty alleviation programs in Nepal failed because they isolated poverty as an economic and growth problem, whereas, poverty should have been identified and tackled as a political and a human rights issue. I begin the essay by briefly sharing my own experience of poverty while growing up in rural Nepal. I, then, explore the overall poverty scenario in Nepal and analyze a few major causes and consequences of poverty in the country. After offering an overview of poverty reduction approaches in Nepal, I conclude the essay with a few recommendations intended for organizations and policymakers formulating poverty-alleviation strategies in Nepal.
Dynamical replica theoretic analysis of CDMA detection dynamics
Creators: name: Hatchett, J. P. L.
name: Okada, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the detection dynamics of the Gibbs sampler for code-division multiple access (CDMA) multiuser detection. Our approach is based upon dynamical replica theory which allows an analytic approximation to the dynamics. We use this tool to investigate the basins of attraction when phase coexistence occurs and examine its efficacy via comparison with Monte Carlo simulations.
description: 18 pages, 2 figures