cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
(Phenomenology/Lattice-Compatible) $SU(3)$ M$χ$PT HD up to ${\cal O}(p^4)$ and the ${\cal O}\left(R^4\right)$-Large-$N$ Connection
Creators: name: Yadav, Vikas
name: Yadav, Gopal
name: Misra, Aalok
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Obtaining the values of the coupling constants of the low energy effective theory corresponding to QCD, compatible with experimental data, even in the (vector) mesonic sector from (the ${\cal M}$-theory uplift of) a UV-complete string theory dual, has thus far been missing in the literature. We take the first step in this direction by obtaining the values of the coupling constants of the ${\cal O}(p^4)$ $χ$PT Lagrangian in the chiral limit involving the NGBs and $ρ$ meson (and its flavor partners) from the ${\cal M}$-theory /type IIA dual of large-$N$ thermal QCD, inclusive of the ${\cal O}(R^4)$ corrections. We observe that ensuring compatibility with phenomenological/lattice results (the values ) as given in arXiv:1510.01634[hep-ph], requires a relationship relating the ${\cal O}(R^4)$ corrections and large-$N$ suppression. In other words, QCD demands that the higher derivative corrections and the large-$N$ suppressed corrections in its M/string theory dual are related. As a bonus, we explicitly show that the ${\cal O}(R^4)$ corrections in the UV to the ${\cal M}$-theory uplift of the type IIB dual of large-$N$ thermal QCD, can be consistently set to be vanishingly small.
description: v2: 1+51 pages, LaTeX; Added refs and explanatory text- an app summarizing the HLS formalism (based on Harada and Yamawaki's Phys Rep review), an app on O(R^4) corrections in the D6-brane DBI action, a small discussion on holographic renormalization and a summary of results and a table (fitting the model-related parameters to phenomenological values of O(p^4) ChPT LECs); to appear in JHEP
Origin of Pure Spinor Superstring
Creators: name: Aisaka, Yuri
name: Kazama, Yoichi
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The pure spinor formalism for the superstring, initiated by N. Berkovits, is derived at the fully quantum level starting from a fundamental reparametrization invariant and super-Poincare invariant worldsheet action. It is a simple extension of the Green-Schwarz action with doubled spinor degrees of freedom with a compensating local supersymmetry on top of the conventional kappa-symmetry. Equivalence to the Green-Schwarz formalism is manifest from the outset. The use of free fields in the pure spinor formalism is justified from the first principle. The basic idea works also for the superparticle in 11 dimensions.
description: 21 pages, no figure; v2: refs. added
Electrical transport in deformed nanostrips: electrical signature of reversible mechanical failure
Creators: name: Datta, Soumendu
name: Chaudhuri, Debasish
name: Saha-Dasgupta, Tanusri
name: Sengupta, Surajit
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We calculate the electrical conductivity of a thin crystalline strip of atoms confined within a quasi one dimensional channel of fixed width. The conductivity shows anomalous behavior as the strip is deformed under tensile loading. Beyond a critical strain, the solid fails by the nucleation of alternating bands of solid and {\em smectic} like phases accompanied by a jump in the conductivity. Since the failure of the strip in this system is known to be reversible, the onductivity anomaly may have practical use as a sensitive strain transducer.
description: 8 pages, 3 figures, communicated for publication in EPL
Comments on "Angular Momentum Transport in Quasi-Keplerian Accretion Disks"
Creators: name: Hayashi, Eiji
name: Isaka, Hiromu
name: Matsuda, Takuya
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Subramanian, Pujari and Becker (2004) claim that the correct expression for the angular momentum transport in an accretion disc, which is proportional to dOmega/dR, can be derived on the basis of the analysis of the epicyclic motion of gas parcels in adjacent eddies in the disc. We study their argument and show that their derivation contains several fundamental errors: 1) the biased choice of the desired formula from an infinite number of formulae; 2) the biased choice of parcel trajectories; and 3) confusion regarding the reference frames. Following 1) we could derive, for example, a (invalid) formula in which the angular momentum transport is proportional to dv_phi/dR, and from 2) we could even prove that the angular momentum transport is either inward or null. We present the correct approach to the problem of angular momentum transport in an accretion disc in terms of mean free path theory.
description: 9 pages, 2 figures, to appear in Prog. Theor. Phys. Vol.113, No.6, 2005
Zero-field spin-splitting and spin lifetime in n-InSb/In1-xAlxSb asymmetric quantum well heterostructures
Creators: name: Gilbertson, A. M.
name: Fearn, M.
name: Jefferson, J. H.
name: Murdin, B. N.
name: Buckle, P. D.
name: Cohen, L. F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spin-orbit (SO) coupling parameters for lowest conduction subband due to structural (SIA) and bulk (BIA) inversion asymmetry are calculated for a range of carrier densities in [001]-grown delta-doped n-type InSb/In1-xAlxSb asymmetric quantum wells using the established 8 band k.p formalism [PRB 59,8 R5312 (1999)]. We present calculations for conditions of zero bias at 10 K. It is shown that both the SIA and BIA parameters scale approximately linearly with carrier density, and exhibit a marked dependence on well width when alloy composition is adjusted to allow maximum upper barrier height for a given well width. In contrast to other material systems the BIA contribution to spin splitting is found to be of significant and comparable value to the SIA mechanism in these structures. We calculate the spin lifetime for spins oriented along [11-0] based on D'yakonov-Perel mechanism using both the theory of Averkiev et al. [J. Phys.:Condens. Matter 14 (2002)] and also the rate of precession of spins about the effective magnetic field, taking into account all three SO couplings, showing good agreement.Spin lifeime for this direction is largest in the narrow wells over the range of moderate carrier densities considered, which is attributed to the reduced magnitude of the k-cubic BIA parameter in narrow wells. The inherently large BIA induced SO coupling in these systems is shown to have considerable effect on the spin lifetime, which exhibits significant reduction in the maximum spin lifetime compared to previous studies which consider systems with relatively weak BIA induced SO coupling. The relaxation rate of spins oriented in the [001] direction is dominated by the k-linear SIA and BIA coupling parameters and at least an order of magnitude greater than in the [11-0] direction.
description: 18 pages 12 figures
Assembly Sequences Based on Multiple Criteria Against Products with Deformable Parts
Creators: name: Kiyokawa, Takuya
name: Takamatsu, Jun
name: Ogasawara, Tsukasa
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Aiming to generate easy-to-handle assembly sequences for robotic assembly, this study tackles assembly sequence generation by considering two tradeoff objectives: (1) insertion conditions and (2) degrees of constraints among assembled parts. We propose a multiobjective genetic algorithm to balance these two objectives for generating assembly sequences. Furthermore, the method of extracting part relation matrices including interference-free, insertion, and degree of constraint matrices is extended for application to 3D computer-aided design (CAD) models, including deformable parts. The interference of deformable parts with other parts can be easily investigated by scaling parts. A simulation experiment was conducted using the proposed method, and the results show the possibility of obtaining Pareto-optimal solutions of assembly sequences for a 3D CAD model with 33 parts including a deformable part. This approach can potentially be extended to handle various types of deformable parts and to explore graspable sequences during assembly operations.
description: 8 pages, 13 figures
Double Correlations in HTSC
Creators: name: Dayan, Moshe
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The Nambu-Gorkov generalized Hartree-Fock theory of superconductivity is further generalized to treat simultaneously two kinds of correlations: the correlations that lead to superconductivity, as well as the correlations that produce the pseudogap in the normal state. The treatment of these simultaneous double correlations is done by enlarging the dimension of the propagator and self-energy matrices, from two to four. The off-diagonal self-energies and the DOS are calculated. The results are compatible with tunneling and PES experiments.
A scalable spectral Stokes solver for simulation of time-periodic flows in complex geometries
Creators: name: Meng, Chenwei
name: Bhattacharjee, Anirban
name: Esmaily, Mahdi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Simulation of unsteady creeping flows in complex geometries has traditionally required the use of a time-stepping procedure, which is typically costly and unscalable. To reduce the cost and allow for computations at much larger scales, we propose an alternative approach that is formulated based on the unsteady Stokes equation expressed in the time-spectral domain. This transformation results in a boundary value problem with an imaginary source term proportional to the computed mode that is discretized and solved in a complex-valued finite element solver using Bubnov-Galerkin formulation. This transformed spatio-spectral formulation presents several advantages over the traditional spatio-temporal techniques. Firstly, for cases with boundary conditions varying smoothly in time, it provides a significant saving in computational cost as it can resolve time-variation of the solution using a few modes rather than thousands of time steps. Secondly, in contrast to the traditional time integration scheme with a finite order of accuracy, this method exhibits a super convergence behavior versus the number of computed modes. Thirdly, in contrast to the stabilized finite element methods for fluid, no stabilization term is employed in our formulation, producing a solution that is consistent and more accurate. Fourthly, the proposed approach is embarrassingly parallelizable owing to the independence of the solution modes, thus enabling scalable calculations at a much larger number of processors. The comparison of the proposed technique against a standard stabilized finite element solver is performed using two- and three-dimensional canonical and complex geometries. The results show that the proposed method can produce more accurate results at 1% to 11% of the cost of the standard technique for the studied cases.
Bounded-Degree Graphs have Arbitrarily Large Queue-Number
Creators: name: Wood, David R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C62

description: It is proved that there exist graphs of bounded degree with arbitrarily large queue-number. In particular, for all $Δ\geq3$ and for all sufficiently large $n$, there is a simple $Δ$-regular $n$-vertex graph with queue-number at least $c\sqrtΔn^{1/2-1/Δ}$ for some absolute constant $c$.
Quantum walk-based portfolio optimisation
Creators: name: Slate, N.
name: Matwiejew, E.
name: Marsh, S.
name: Wang, J. B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper proposes a highly efficient quantum algorithm for portfolio optimisation targeted at near-term noisy intermediate-scale quantum computers. Recent work by Hodson et al. (2019) explored potential application of hybrid quantum-classical algorithms to the problem of financial portfolio rebalancing. In particular, they deal with the portfolio optimisation problem using the Quantum Approximate Optimisation Algorithm and the Quantum Alternating Operator Ansatz. In this paper, we demonstrate substantially better performance using a newly developed Quantum Walk Optimisation Algorithm in finding high-quality solutions to the portfolio optimisation problem.
Archive of World Mitochondria Society Vol 3, No 1 (2017): Dedicated for 8th world congress on Targeting Mitochondria
Creators: name: World Mitochondria Society
Publisher: name: World Mitochondria Society
Year: 2017

description: This volume 3 (issue 1) will be dedicated to the Targeting Mitochondria 2017 World Congress which will be held at Berlin from October 23 - 24, 2017.
Solutions of modular bootstrap constraints from quantum codes
Creators: name: Dymarsky, Anatoly
name: Shapere, Alfred
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Modular invariance imposes rigid constrains on the partition functions of two-dimensional conformal field theories. Many fundamental results follow strictly from modular invariance, giving rise to the numerical modular bootstrap program. Here we report a way to assign to a particular family of quantum error correcting codes a family of "code CFTs" CFTs", which forms a subset of the space of Narain CFTs. This correspondence reduces modular invariance of the 2d CFT partition function to a few simple algebraic relations obeyed by a multivariate polynomial characterizing the corresponding code. Using this relation we construct many explicit examples of physically distinct isospectral theories, as well as many examples of nonholomorphic functions, which satisfy all basic properties of the 2d CFT partition function, yet are not associated with any known CFT.
description: Published version with supplemental material included. 7 pages, 1 figure
Phonon Bottleneck Effect Leads to Observation of Quantum Tunneling of the Magnetization and Butterfly Hysteresis Loops in (Et4N)3Fe2F9
Creators: name: Schenker, Ralph
name: Leuenberger, Michael N.
name: Chaboussant, Gregory
name: Loss, Daniel
name: Gudel, Hans U.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A detailed investigation of the unusual dynamics of the magnetization of (Et4N)3Fe2F9 (Fe2), containing isolated [Fe2F9]3- dimers, is presented and discussed. Fe2 possesses an S=5 ground state with an energy barrier of 2.40 K due to an axial anisotropy. Poor thermal contact between sample and bath leads to a phonon bottleneck situation, giving rise to butterfly-shaped hysteresis loops below 5 K concomitant with slow decay of the magnetization for magnetic fields Hz applied along the Fe--Fe axis. The butterfly curves are reproduced using a microscopic model based on the interaction of the spins with resonant phonons. The phonon bottleneck allows for the observation of resonant quantum tunneling of the magnetization at 1.8 K, far above the blocking temperature for spin-phonon relaxation. The latter relaxation is probed by AC magnetic susceptibility experiments at various temperatures and bias fields. At H=0, no out-of-phase signal is detected, indicating that at T smaller than 1.8 K Fe2 does not behave as a single-molecule magnet. At 1 kG, relaxation is observed, occurring over the barrier of the thermally accessible S=4 first excited state that forms a combined system with the S=5 state.
description: 10 pages, 10 figures
Microbiota interact with mitochondria to regulate interaction with host cells
Creators: name: Saint-Georges-Chaumet, Yann
name: Edeas, Marvin
Publisher: name: World Mitochondria Society
Year: 2016

description: Recent studies have highlighted the importance of the gut microbiota for human health through the regulation of host immune response and energetic metabolism. Microbiota interact with host cells in particular by modulating the mitochondrial activities. This mitochondria – microbiota cross-talk is intriguing because mitochondria and bacteria share a lot of common structural and functional features. Several studies reported strong association between microbiota quality and diversity and mitochondrial function. The mitochondrial production of Reactive Oxygen Species plays an important role during the innate immune response and inflammation and is often target by pathogenic bacteria. Several studies reported that the gut epithelial barrier homeostasis is regulated by microbiota through the production of mitochondrial ROS. In addition, microbiota released metabolites that can directly interfere with mitochondrial respiratory chain and ATP production. Some of them, particularly Short Chain Fatty Acids have beneficial effects on mitochondrial activity. All these data suggest that microbiota target mitochondria to regulate its interaction with the host. Imbalance of this cross-talk may results in pathogenic state as observed in numerous studies. New strategies to modulate the quality and diversity of microbiota rather than acting on microbiota metabolites and microbiota related factors are under investigation.
description: Journal of World Mitochondria Society, Vol 2, No 1 (2016): Journal of World Mitochondria Society Volume 2
[Tsimshian grammatical notes]
Creators: name: Barrett, S.A.
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2015
Subjects: subject: tsi
subject: Tsimshian language

description: Morphological paradigms. Small loose notebook pages, in pencil and ink. Includes a note by M-L. Tarpent dated 6/22/00 explaining contents of some pages.
A note on discrete dynamical systems in theories of class $S$
Creators: name: Cirafici, Michele
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this note we consider the set of line operators in theories of class $S$. We show that this set carries the action of a natural discrete dynamical system associated with the BPS spectrum. We discuss several applications of this perspective; the relation with global properties of the theory; the set of constraints imposed on the spectrum generator, in particular for the case of SU(2) $\mathcal{N}=2^*$; and the relation between line defects and certain spherical Double Affine Hecke Algebras.
description: 33 pages, a Mathematica notebook is included with the paper; v2 minor changes, published version
Evidence of a Market Effect from Conservation Easements
Creators: name: Taff, Steven J.
name: Taff, Steven J.
Publisher: name: Unknown
Year: 2004
Subjects: Land Economics/Use

description: Both federal income tax law and local property tax assessment practice are premised on the "theory" that permanent conservation restrictions reduce property values, while shorter term restrictions do not. An analysis of 190 recent sales of Minnesota agricultural land with varying cropping rights restrictions supports only a portion of this theory. Both permanent and short-term restrictions were negatively and significantly associated with per-acre sales prices. The former effect is consistent with the theory and is statistically meaningful, but the dataset contained too few sales with permanent restrictions to warrant a strong conclusion. The latter effect is inconsistent with the theory, but is strongly supported by the data.
Coherence and incoherence in extended broad band triplet interaction
Creators: name: de Oliveira, G. I.
name: Rizzato, F. B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: In the present analysis we study the transition from coherent to incoherent dynamics in a nonlinear triplet of broad band combs of waves. Expanding the analysis of previous works, this paper investigates what happens when the band of available modes is much larger than that of the initial narrower combs within which the nonlinear interaction is not subjected to selection rules involving wave momenta. Here selection rules are present and active, and we examine how and when coherence can be defined.
description: 6 pages, 2 figures
Performance issues in an interactive video-on-demand server
Creators: name: Najafian Razavi, Maryam
Publisher: name: University of British Columbia
Year: 2009

description: This research project is an experimental investigation of resource management techniques that can improve the performance of Interactive Video-On-Demand (IVOD) servers. Examples of IVOD can be found in digital libraries, hyper-media, education, entertainment and telemarketing applications. Interactive video programs have some particular characteristics which need to be considered when designing an IVOD server. They consist of a series of short video segments which are created by on-line user interactions and need to be presented to the user in a particular order. The IVOD server must thus try to keep the latency before start-up and between video segments to minimum. Furthermore, user arrivals and departures are frequent in most of the IVOD applications, which causes the server to be in the transient state most of the time. Thus, The adverse effect of frequent transients on the performance of the server must also be addressed. In this research, we identify IVOD performance issues and propose several resource management strategies to improve the performance of our IVOD server in various aspects. An IVOD server is designed and implemented to aim evaluating the suggested techniques.
TimeSHAP: Explaining Recurrent Models through Sequence Perturbations
Creators: name: Bento, João
name: Saleiro, Pedro
name: Cruz, André F.
name: Figueiredo, Mário A. T.
name: Bizarro, Pedro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Although recurrent neural networks (RNNs) are state-of-the-art in numerous sequential decision-making tasks, there has been little research on explaining their predictions. In this work, we present TimeSHAP, a model-agnostic recurrent explainer that builds upon KernelSHAP and extends it to the sequential domain. TimeSHAP computes feature-, timestep-, and cell-level attributions. As sequences may be arbitrarily long, we further propose a pruning method that is shown to dramatically decrease both its computational cost and the variance of its attributions. We use TimeSHAP to explain the predictions of a real-world bank account takeover fraud detection RNN model, and draw key insights from its explanations: i) the model identifies important features and events aligned with what fraud analysts consider cues for account takeover; ii) positive predicted sequences can be pruned to only 10% of the original length, as older events have residual attribution values; iii) the most recent input event of positive predictions only contributes on average to 41% of the model's score; iv) notably high attribution to client's age, suggesting a potential discriminatory reasoning, later confirmed as higher false positive rates for older clients.
description: Accepted at KDD 2021
Deckeroceras balticum Kröger, 2025, sp. nov.
Creators: name: Kröger, Björn
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Cephalopoda
Apsidoceratidae
Deckeroceras
Deckeroceras balticum

description: Deckeroceras balticum sp. nov.
urn:lsid:zoobank.org:act: 05BFB795-1743-407B-8866-5030650628D2
Fig. 36A
Winnipegoceras sp. – Teichert 1930: 294, pl. 8 fig. 23.
Diagnosis
Deckeroceras with mature conch height of ca 65 mm, nearly circular to slightly compressed conch cross section at mature body chamber; mature body chamber strongly curved and contracted.
Etymology
Refers to type region.
Type material
Holotype
ESTONIA • Vohilaid Island, Vohilaid shore (E): Adila Formation, Pirgu Regional Stage; GIT 878-227.
Description
The specimen is a fragment of a mature body chamber and five chambers of the phragmocone. The outer shell of the specimen is not preserved. At the base of the body chamber, the conch is ca 65 mm high. At the apical end of the specimen, 32 mm from the base of the body chamber, the conch height is 49 mm, and the conch cross section was nearly circular or slightly compressed. The angle of expansion of the phragmocone is ca 28°. The sutures are directly transverse and 8 mm apart where the conch height is 49 mm (RCL = 0.15). The siphuncle and the septal foramen are either not preserved or not visible. The body chamber is strongly curved and ca 65 mm long. In lateral view the convex side of the conch is much more strongly curved than the concave side, resulting in a relatively narrow mature aperture (height ca 40 mm).
Remarks
A specimen from Piirsalu, Estonia, figured and described in Teichert (1930), is identical in size and shape, and can be assigned to the same species, based on the knowledge of this more complete specimen, described herein.
Comparison
The two other species of this genus (D. adaense, D. clermontense Foerste 1935b, known from the type-region and from the Elgin Member of the Maquoketa Shale, Iowa, USA) have smaller adult sizes (maximum conch heights 40–50 mm), and in D. clermontense Foerste, 1935a the mature body chamber is less strongly curved.
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 pages 94-95, DOI: 10.5852/ejt.2025.978.2801, http://zenodo.org/record/14988376
Transport of pseudothermal photons through an anharmonic cavity
Creators: name: Shapiro, Dmitriy S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Under nonequilibrium conditions, quantum optical systems reveal unusual properties that might be distinct from those in condensed matter. The fundamental reason is that photonic eigenstates can have arbitrary occupation numbers, whereas in electronic systems these are limited by the Pauli principle. Here, we address the steady-state transport of pseudothermal photons between two waveguides connected through a cavity with Bose-Hubbard interaction between photons. One of the waveguides is subjected to a broadband incoherent pumping. We predict a continuous transition between the regimes of Lorentzian and Gaussian chaotic light emitted by the cavity. The rich variety of nonequilibrium transport regimes is revealed by the zero-frequency noise. There are three limiting cases, in which the noise-current relation is characterized by a power-law, $S\propto J^γ$. The Lorentzian light corresponds to Breit-Wigner-like transmission and $γ=2$. The Gaussian regime corresponds to many-body transport with the shot noise ($γ=1$) at large currents; at low currents, however, we find an unconventional exponent $γ=3/2$ indicating a nontrivial interplay between multi-photon transitions and incoherent pumping. The nonperturbative solution for photon dephasing is obtained in the framework of the Keldysh field theory and Caldeira-Leggett effective action. These findings might be relevant for experiments on photon blockade in superconducting qubits, thermal states transfer, and photon statistics probing.
description: 16 pages, 5 figures, 1 table. Version accepted in Scientific Reports
Probing electronic decoherence with high-resolution attosecond photoelectron interferometry
Creators: name: Busto, David
name: Laurell, Hugo
name: Shapiro, Daniel Finkelstein
name: Alexandridi, Christina
name: Isinger, Marcus
name: Nandi, Saikat
name: Squibb, Richard
name: Turconi, Margherita
name: Zhong, Shiyang
name: Arnold, Cord
name: Feifel, Raimund
name: Gisselbrecht, Mathieu
name: Salières, Pascal
name: Pullerits, Tönu
name: Martín, Fernando
name: Argenti, Luca
name: L'Huillier, Anne
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Quantum coherence plays a fundamental role in the study and control of ultrafast dynamics in matter. In the case of photoionization, entanglement of the photoelectron with the ion is a well known source of decoherence when only one of the particles is measured. Here we investigate decoherence due to entanglement of the radial and angular degrees of freedom of the photoelectron. We study two-photon ionization via the 2s2p autoionizing state in He using high spectral resolution photoelectron interferometry. Combining experiment and theory, we show that the strong dipole coupling of the 2s2p and 2p$^2$ states results in the entanglement of the angular and radial degrees of freedom. This translates, in angle integrated measurements, into a dynamic loss of coherence during autoionization.
Institut für Gesellschaftspolitik an der Hochschule für Philosophie München (Hrsg.), Taschenbuchreihe: Kirche und Dritte Welt
Creators: name: Müller, Reinhard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 22 Nr. 4 (1973): Ökumenische Rundschau, Band 22, Heft 4
Non-equilibrium relaxation of an elastic string in random media
Creators: name: Kolton, Alejandro B.
name: Rosso, A.
name: Giamarchi, Thierry
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the relaxation of an elastic string in a two dimensional pinning landscape using Langevin dynamics simulations. The relaxation of a line, initially flat, is characterized by a growing length, $L(t)$, separating the equilibrated short length scales from the flat long distance geometry that keep memory of the initial condition. We find that, in the long time limit, $L(t)$ has a non--algebraic growth, consistent with thermally activated jumps over barriers with power law scaling, $U(L) \sim L^θ$.
description: 2 pages, 1 figure, Proceedings of ECRYS-2005 International Workshop on Electronic Crystal
Deep Kernel Supervised Hashing for Node Classification in Structural Networks
Creators: name: Guo, Jia-Nan
name: Mao, Xian-Ling
name: Lin, Shu-Yang
name: Wei, Wei
name: Huang, Heyan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Node classification in structural networks has been proven to be useful in many real world applications. With the development of network embedding, the performance of node classification has been greatly improved. However, nearly all the existing network embedding based methods are hard to capture the actual category features of a node because of the linearly inseparable problem in low-dimensional space; meanwhile they cannot incorporate simultaneously network structure information and node label information into network embedding. To address the above problems, in this paper, we propose a novel Deep Kernel Supervised Hashing (DKSH) method to learn the hashing representations of nodes for node classification. Specifically, a deep multiple kernel learning is first proposed to map nodes into suitable Hilbert space to deal with linearly inseparable problem. Then, instead of only considering structural similarity between two nodes, a novel similarity matrix is designed to merge both network structure information and node label information. Supervised by the similarity matrix, the learned hashing representations of nodes simultaneously preserve the two kinds of information well from the learned Hilbert space. Extensive experiments show that the proposed method significantly outperforms the state-of-the-art baselines over three real world benchmark datasets.
description: 9 pages, 3 figures
Metabolism and disposition of zamicastat in rats
Creators: name: Araújo, Francisca
name: Dória, Maria Luisa
name: Beliaev, Alexandre
name: Kiss, László E.
name: Bonifácio, Maria João
name: Holenz, Joerg
name: Soares-da-Silva, Patrício
name: Loureiro, Ana Isabel
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Physiology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: The metabolism and disposition of zamicastat, a reversible dopamine β-hydroxylase (DβH) inhibitor, developed for treatment of Pulmonary Arterial Hypertension (PAH), were investigated in rats after oral and intravenous administration of [14C]-zamicastat. Zamicastat was rapidly absorbed and widely distributed to peripheral tissues, with total radioactivity almost completely recovered after 168 h post-dose. Its main route of excretion was via faeces, whilst urine and expired air had minor roles. Maximum plasma concentration of zamicastat-related radioactivity occurred in the first hours, remaining quantifiable up to 144 h. The unchanged zamicastat plasma peak was 2 h post-dose and declined to low levels over 24 h. Its metabolism occurs largely during the first 8 h with only one metabolite identified in the latest time-point (96 h), the isocyanic acid/thiocyanic acid (tautomeric forms). Zamicastat metabolic pathway involved multiple reactions comprising desulfurization, oxidative desulfurization, N-debenzylation followed by further oxidation or N-acetylation, and the unexpected multistep metabolic pathway leading to isocyanic acid/thiocyanic acid. As main conclusion, zamicastat was found to be rapidly absorbed, widely distributed to peripheric tissues and almost completely recovered after 168 h post-dose, mainly via faeces. It is extensively metabolized by multiple reactions with isocyanic acid/thiocyanic acid as the major late metabolite.
ASSESSING THE ECONOMIC VALUE OF RESEARCH
Creators: name: Ruttan, Vernon W.
name: Ruttan, Vernon W.
Publisher: name: Unknown
Year: 2003
Subjects: Research and Development/Tech Change/Emerging Technologies

description: For almost half a century World War II and the Cold War provided the political and fiscal context for public investment in science and technology. The report prepared by Vannevar Bush, Science: the Endless Frontier (1945), advanced an investment rationale for federal support of scientific research. In spite of pressure from Congress and the Office of the President the scientific community has resisted the development and application of operational economic criteria for the allocation of research resources.
Effects of microscopic disorder on the collective dynamics of globally coupled maps
Creators: name: De Monte, S.
name: d'Ovidio, F.
name: Chate', H.
name: Mosekilde, E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: This paper studies the effect of independent additive noise on the synchronous dynamics of large populations of globally coupled maps. Our analysis is complementary to the approach taken by Teramae and Kuramoto [Teramae and Kuramoto, Phys. Rev. E 63:036210, 2001] who pointed out the anomalous scaling properties preceding the loss of coherence. We focus on the macroscopic dynamics that remains deterministic at any noise level and differs from the microscopic one. Using properly defined order parameters, an analytical approach is proposed for describing the collective dynamics in terms of an approximate low-dimensional system. The systematic derivation of the macroscopic equations provides a link between the microscopic features of the population (single-element dynamics and noise distribution) and the properties of the emergent behaviour. The macroscopic bifurcations induced by noise are compared to those originating from parameter mismatches within the population.
description: 27 pages, 6 figures
title: Investigating trade-offs using ecological stoichiometry in the boreal forest
Creators: name: Richmond, Isabella Croft
Publisher: name: Memorial University of Newfoundland
Year: 2020

description: Studying trade-offs allows for the investigation of complex ecosystem interactions and processes. Ecological stoichiometry measures the elemental ratios and the balance of ratios in organisms and allows for comparisons across species, populations, and ecosystems. I tested two questions regarding ecological trade-offs. First, I tested whether there is interannual variation in the stoichiometric traits of boreal plant species and, if so, what is driving the variation. Second, I tested how herbivore space use is influenced by perceived predation risk and food quality. I found that interannual variation occurs in percent carbon for all species and that the evergreen conifer was the only species that experienced interannual variation in other elements. I found temperature, moisture, and productivity to be drivers of interannual variation. For the second question, I found that snowshoe hare space use is influenced by perceived predation risk and food quality. These factors interact and produce an effect at the individual level, where hares increase space use in high risk areas if there is high-quality food and vice versa. Predation risk and plant stoichiometry are connected through their shared impact on foraging behaviour, which influences herbivore life cycles. This work establishes ecological stoichiometry as an exciting framework to investigate biological trade-offs and contributes to our understanding of the temporal variation of resources and herbivore space use.
Embrace open science to empower your community and advance your career
Creators: name: Kamoun, Sophien
Publisher: name: Zenodo
Year: 2023

description: Presentation by Sophien Kamoun at the ICARDA and CIMMYT Training Workshop on Genotyping, Sequencing, and Principles on Data Analysis and Concept of Data Management, 11 - 15 December 2023, Tunis, Tunisia.
Minnesota Extension's Mixed Regional/County Model: Greater Impacts Follows Changes in Structure
Creators: name: O'Brien, Phil
name: Morse, George W.
name: O'Brien, Phil
name: Morse, George W.
Publisher: name: Unknown
Year: 2006
Subjects: Teaching/Communication/Extension/Profession

description: The Cooperative Extension Service has as its mission helping the public use the research generated at land-grant universities. Since 1914, most states have used a county-based Extension model, with educators in every county and campus-based faculty supporting local educational efforts. This paper outlines why and how the Minnesota Extension Service has replaced this model with a mixed regional/county model, the major features of the new delivery model and the employment consequences of the shift as well as the non-financial advantages of the new model. The structural changes in Minnesota are of interest to Extension stakeholders in other states who are facing similar challenges and want to learn more about the benefits and costs of Minnesota's new model. Within Minnesota the public is beginning to ask a much more important question: What are the impacts of the programs being delivered? Structural change is only valuable if it results in increased programming and greater impacts than would have happened without the change. Although this paper starts to outline some of the changes in program impact, the bulk of that discussion will be reserved for later papers.
Frese, Lieke / Kick, Klaus R. (Hrsg.), Brasilianische Reportagen
Creators: name: Müller, Reinhard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 22 Nr. 4 (1973): Ökumenische Rundschau, Band 22, Heft 4
Landowner Driven Sustainable Forest Management and Value-Added Processing
Creators: name: Damery, David T.
name: Damery, David T.
Publisher: name: Unknown
Year: 2005
Subjects: Environmental Economics and Policy
Resource /Energy Economics and Policy

description: The Massachusetts Woodlands Cooperative, LLC (MWC) is working to help members conduct sustainable forestry of the highest standards while increasing financial returns from harvest activities. The forests of Massachusetts, the 3rd most densely populated of the United States, are threatened. Decades of high grading and the threat of conversion to alternative use present challenges for maintaining a forested landscape. Despite being 60% forested Massachusetts imports approximately 98% of the wood fiber that its citizens consume. MWC is a forest management, processing and marketing cooperative organized by and on behalf of forest landowners in western Massachusetts. The cooperative was envisioned in 1999, incorporated in 2001, gained Forest Stewardship Council (FSC) land management certification in 2003 and is currently in the business-start-up and early growth stage. An umbrella group certification protocol was developed to provide cost-effective forestland management certification. Members benefit from cooperative management of harvest operations, above market stumpage payments, and value-added processing and production including marketing traditionally low value and small diameter material. The added revenue from developing these new markets is used to fund both timber and non-timber related management activities that landowners value. The cooperative partners with local wood processing businesses to spur community economic development.
Performance evaluation of the border gateway protocol
Creators: name: Navai, Negar
Publisher: name: University of British Columbia
Year: 2009

description: The Border Gateway Protocol (BGP) is the de facto inter-domain routing protocol used to exchange reachability information between autonomous systems in the global Internet. The BGP is a path vector routing protocol. Distance vector routing protocols can take a long time to converge after a topological change. It is believed that the adoption of the path vector solves this problem. One of the objectives of this thesis is to investigate this claim. The BGP specification lacks convergence behavioral and performance analysis. This thesis presents the analysis of the BGP convergence behavior and performance. The behavior of the protocol can be estimated in an experimental manner by means of simulations. The effect of network topology on the number of BGP routing updates and convergence latency is examined. The analysis in this thesis is based on data collected in a simulation environment. The best and the worst-case of BGP convergence models are simulated. This analysis shows that BGP has bouncing problem. In the case of a route failure event, the upper bound on volume of routing update messages is found to be factorial and convergence latency is linear with respect to the number of autonomous systems. In the case of a route announcement event, the upper bound on number of routing update messages is found to be exponential with respect to the number of autonomous systems. It is found that performing MinRouteAdvertisementlnterval timer and loop detection on the receiver router significantly reduces the number of BGP routing updates.
Target mass number dependence of subthreshold antiproton production in proton-, deuteron- and alpha-particle-induced reactions
Creators: name: Mueller, H.
name: Komarov, V. I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Data from KEK on subthreshold $\bar{\mrm{p}}$ as well as on $π^\pm$ and $\mrm{K}^\pm$ production in proton-, deuteron- and $α$-induced reactions at energies between 2.0 and 12.0 A GeV for C, Cu and Pb targets are described within a unified approach. We use a model which considers a nuclear reaction as an incoherent sum over collisions of varying numbers of projectile and target nucleons. It samples complete events and thus allows for the simultaneous consideration of all final particles including the decay products of the nuclear residues. The enormous enhancement of the $\bar{\mrm{p}}$ cross section, as well as the moderate increase of meson production in deuteron and $α$ induced compared to proton-induced reactions, is well reproduced for all target nuclei. In our approach, the observed enhancement near the production threshold is mainly due to the contributions from the interactions of few-nucleon clusters by simultaneously considering fragmentation processes of the nuclear residues. The ability of the model to reproduce the target mass dependence may be considered as a further proof of the validity of the cluster concept.
description: 9 pages, 4 figures
Within and Between Group Variation of Individual Strategies in Common Pool Resources: Evidence from Field Experiments
Creators: name: Velez, Maria Alejandra
name: Murphy, James J.
name: Stranlund, John K.
name: Velez, Maria Alejandra
name: Murphy, James J.
name: Stranlund, John K.
Publisher: name: Unknown
Year: 2006
Subjects: Resource /Energy Economics and Policy

description: With data from framed common pool resource experiments conducted with artisanal fishing communities in Colombia, we estimate a hierarchical linear model to investigate within-group and between-group variation in individual harvest strategies across several institutions. Our results suggest that communication serves to effectively coordinate individual strategies within groups, but that these coordinated strategies vary considerably across groups. In contrast, weakly enforced regulatory restrictions on individual harvests (as well as unregulated open access) produce significant variation in the individual strategies within groups, but these strategies are roughly replicated across groups so that there is little between-group variation.