cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A generic framework for genuine multipartite entanglement detection
Creators: name: Xu, Xin-Yu
name: Zhou, Qing
name: Zhao, Shuai
name: Hu, Shu-Ming
name: Li, Li
name: Liu, Nai-Le
name: Chen, Kai
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Design of detection strategies for multipartite entanglement stands as a central importance on our understanding of fundamental quantum mechanics and has had substantial impact on quantum information applications. However, accurate and robust detection approaches are severely hindered, particularly when the number of nodes grows rapidly like in a quantum network. Here we present an exquisite procedure that generates novel entanglement witness for arbitrary targeted state via a generic and operational framework. The framework enjoys a systematic and high-efficient character and allows to substantiate genuine multipartite entanglement for a variety of states that arise naturally in practical situations, and to dramatically outperform currently standard methods. With excellent noise tolerance, our framework should be broadly applicable to witness genuine multipartite entanglement in various practically scenarios, and to facilitate making the best use of entangled resources in the emerging area of quantum network.
description: 27 pages, 5 figures
On equilibrium charge distribution above dielectric surface
Creators: name: Lytvynenko, Dmytro M.
name: Slyusarenko, Yuriy V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The problem of the equilibrium state of the charged many-particle system above dielectric surface is formulated.We consider the case of the presence of the external attractive pressing field and the case of its absence. The equilibrium distributions of charges and the electric field, which is generated by these charges in the system in the case of ideally plane dielectric surface, are obtained. The solution of electrostatic equations of the system under consideration in case of small spatial heterogeneities caused by the dielectric surface, is also obtained. These spatial inhomogeneities can be caused both by the inhomogeneities of the surface and by the inhomogeneous charge distribution upon it. In particular, the case of the .wavy. spatially periodic surface is considered taking into account the possible presence of the surface charges.
description: 11 pages
Event-based imaging velocimetry using pulsed illumination
Creators: name: Willert, Christian E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The paper addresses the shortcoming of current event-based vision (EBV) sensors in the context of particle imaging. Latency is introduced both on the pixel level as well as during read-out from the array and results in systemic timing errors when processing the recorded event data. Using pulsed illumination, the overall latency can be quantified and indicates an upper bound on the frequency response on the order of 10-20 kHz for the specific EBV sensor. In particle-based flow measurement applications, particles scattering the light from a pulsed light source operating below this upper frequency can be reliably tracked in time. Through the combination of event-based vision and pulsed illumination, flow field measurements are demonstrated at light pulsing rates up to 10 kHz in both water and air flows by providing turbulence statistics and velocity spectra. The described EBV-based velocimetry system consists of only an EBV camera and a (low-cost) laser that can be directly modulated by the camera, making the system compact, portable and cost effective.
Cosmic Ray Spectra in Nambu-Goldstone Dark Matter Models
Creators: name: Ibe, Masahiro
name: Murayama, Hitoshi
name: Shirai, Satoshi
name: Yanagida, Tsutomu T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the cosmic ray spectra in annihilating/decaying Nambu-Goldstone dark matter models. The recent observed positron/electron excesses at PAMELA and Fermi experiments are well fitted by the dark matter with a mass of 3TeV for the annihilating model, while with a mass of 6 TeV for the decaying model. We also show that the Nambu-Goldstone dark matter models predict a distinctive gamma-ray spectrum in a certain parameter space.
description: 16 pages, 4 figures
Symmetries of the Dirac operator with skew-symmetric torsion
Creators: name: Houri, Tsuyoshi
name: Kubiznak, David
name: Warnick, Claude
name: Yasui, Yukinori
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this paper, we consider the symmetries of the Dirac operator derived from a connection with skew-symmetric torsion. We find that the generalized conformal Killing-Yano tensors give rise to symmetry operators of the massless Dirac equation, provided an explicitly given anomaly vanishes. We show that this gives rise to symmetries of the Dirac operator in the case of strong Kahler with torsion (KT) and strong hyper-Kahler with torsion (HKT) manifolds.
description: 19 pages, no figures
Quantum key distribution rates from semidefinite programming
Creators: name: Araújo, Mateus
name: Huber, Marcus
name: Navascués, Miguel
name: Pivoluska, Matej
name: Tavakoli, Armin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Computing the key rate in quantum key distribution (QKD) protocols is a long standing challenge. Analytical methods are limited to a handful of protocols with highly symmetric measurement bases. Numerical methods can handle arbitrary measurement bases, but either use the min-entropy, which gives a loose lower bound to the von Neumann entropy, or rely on cumbersome dedicated algorithms. Based on a recently discovered semidefinite programming (SDP) hierarchy converging to the conditional von Neumann entropy, used for computing the asymptotic key rates in the device independent case, we introduce an SDP hierarchy that converges to the asymptotic secret key rate in the case of characterised devices. The resulting algorithm is efficient, easy to implement and easy to use. We illustrate its performance by recovering known bounds on the key rate and extending high-dimensional QKD protocols to previously intractable cases. We also use it to reanalyse experimental data to demonstrate how higher key rates can be achieved when the full statistics are taken into account.
description: 11+5 pages, 3 figures. Minor improvements, published version
title: Molecular Systematics, Historical Biogeography, and Evolution of Spider Wasps (Hymenoptera: Pompilidae)
Creators: name: Rodriguez, Juanita
Publisher: name: Utah State University
Year: 2014

description: Spider wasps are solitary parasitoids that use one spider to lay a single egg. Even though their behavior seems homogeneous, the features pertaining to nesting and hunting behavior are diverse for different species. There are approximately 5,000 described species, in 120 genera, but there are probably many undescribed species. The systematics of Pompilidae has been studied in recent years, but only morphological data have been used for this purpose. Because of the morphological homogeneity of spider wasps, molecular data may prove promising for understanding the systematics of the group. Furthermore, dated molecular phylogenies calibrated with fossil data may allow studying the historical biogeography and evolution of the group. I used the nuclear molecular markers elongation factor–1 α F2 copy (EF1), long–wavelength rhodopsin (LWRh), wingless (Wg), RNA polymerase II (Pol2), the D2–D3 regions of the 28S ribosomal RNA (28S), and the mitochondrial Cytochrome C Oxidase I (COI) in a Bayesian and Maximum Likelihood framework, to reconstruct the phylogenies of four main Pompilidae groups: the subfamily Pompilinae, the tribe Aporini, the genus Psorthaspis, and the genus Drepanaporus. I also studied the fossil Pompilidae, and used those results to produce time-calibrated phylogenies of Pompilinae, Aporini, and Psorthaspis. Molecular phylogenetic results support the utility of the use of molecular markers for species delimitation and sex-associations in Pompilidae. In addition, the use of dated phylogenies supports the correlation of host use with diversification rate-shifts, the coevolution of mimicry between pompilids and velvet ants, and various biogeographical hypotheses never tested before for spider wasps.
From Self-Interpreters to Normalization by Evaluation
Creators: name: Boespflug, Mathieu
Publisher: name: arXiv
Year: 2009
Subjects: subject: Programming Languages (cs.PL)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We characterize normalization by evaluation as the composition of a self-interpreter with a self-reducer using a special representation scheme, in the sense of Mogensen (1992). We do so by deriving in a systematic way an untyped normalization by evaluation algorithm from a standard interpreter for the ?-calculus. The derived algorithm is not novel and indeed other published algorithms may be obtained in the same manner through appropriate adaptations to the representation scheme.
Measurements on an Anderson Chain
Creators: name: Pöpperl, Paul
name: Gornyi, Igor V.
name: Gefen, Yuval
Publisher: name: arXiv
Year: 2022
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the dynamics of a monitored single particle in a one-dimensional, Anderson-localized system. The time evolution is governed by Hamiltonian dynamics for fixed time intervals, interrupted by local, projective measurements. The competition between disorder-induced localization and measurement-induced jumps leads to interesting behaviour of readout-averaged quantities. We find that measurements at random positions delocalize the average position, similar to a classical random walk. Along each quantum trajectory, the particle remains localized, however with a modified localization length. In contrast to measurement-induced delocalization, controlled measurements can be used to introduce transport in the system and localize the particle at a chosen site. In this sense, the measurements provide a controlled environment for the particle.
description: 14 pages, 10 figures. Comments welcome
Matrix analysis of steady state, multiconductor, distributed parameter transmission systems
Creators: name: Dowdeswell, Ian J.D.
Publisher: name: University of British Columbia
Year: 2011

description: Problems concerning transmission lines have been solved in the past by treating the line in terms of lumped parameters. Pioneering work was done by L. V. Bewley and S. Hayashi in the application of matrix theory to solve polyphase multiconductor distributed parameter transmission system problems. The availability of digital computers and the increasing complexity of power systems has renewed the interest in this field. With this in mind, a systematic procedure for handling complex transmission systems was evolved. Underlying the procedure is the significant concept of a complete system which defines how the parametric inductance, capacitance, leakance and resistance matrices must be formed and used. Also of significance is the use of connection matrices for handling transpositions and bonding, together with development of the manipulation of these matrices and the complex (Z) and (T) matrices. In the numerical procedure, methods were found to transform complex matrices into real matrices of twice the order and to determine the coefficients in the general solution systematically. The procedure was used to deal with phase asymmetry and mixed end boundary conditions.
Rockpool Documentation
Creators: name: Muir, Dylan
name: Bauer, Felix
name: Weidel, Philipp
Publisher: name: Zenodo
Year: 2019
Subjects: spiking neural networks

description: Rockpool is a Python package for working with dynamical neural network architectures, particularly for designing event-driven networks for Neuromorphic computing hardware. Rockpool provides a convenient interface for designing, training and evaluating recurrent networks, which can operate both with continuous-time dynamics and event- driven dynamics.
NEFI Innovation Hub: CO2-neutrale Gase und Wasserstoff (Poster)
Creators: name: NEFI New Energy for Industry
name: Abermann, Stephan
name: Radner, Fabian
name: Winkler, Franz
name: Tichler, Robert
Publisher: name: NEFI
Year: 2025
Subjects: NEFI
Innovationsnetzwerk
Energie
Industrie
New Energy for Industry
Klima- und Energiefonds
Vorzeigeregion
Innovation Hub
CO2-neutral Gase
Wasserstoff
Poster

description: Die NEFI Innovation Hubs sind spezialisierte Netzwerke, geleitet von angesehenen Forschungseinrichtungen. Ihr Ziel ist es, hochrelevante Forschungs- und Innovationsprojekte zu initiieren, die den Übergang zu einer klimaneutralen Industrie unterstützen und Österreich als Technologieführer im Bereich erneuerbarer Energien und Industrieinnovationen etablieren.

CO2-neutrale Gase und Wasserstoff gewinnen in der Industrie zunehmend an Bedeutung und bieten eine vielversprechende Alternative zu fossilem Erdgas. Besonders grüner Wasserstoff, der durch Elektrolyse aus erneuerbarem Strom erzeugt wird, spielt hierbei eine zentrale Rolle. Die benötigte Infrastruktur kann zudem zur Flexibilisierung und Sektorkopplung genutzt werden. Für die Bereitstellung von Hochtemperaturwärme in industriellen Prozessen, bei denen eine direkte Elektrifizierung nicht möglich ist, bieten CO2-neutrale Gase und Wasserstoff eine effektive Lösung zum Ersatz von fossilem Erdgas.
Biological data integration using Semantic Web technologies
Creators: name: Pasquier, Claude
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: Current research in biology heavily depends on the availability and efficient use of information. In order to build new knowledge, various sources of biological data must often be combined. Semantic Web technologies, which provide a common framework allowing data to be shared and reused between applications, can be applied to the management of disseminated biological data. However, due to some specificities of biological data, the application of these technologies to life science constitutes a real challenge. Through a use case of biological data integration, we show in this paper that current Semantic Web technologies start to become mature and can be applied for the development of large applications. However, in order to get the best from these technologies, improvements are needed both at the level of tool performance and knowledge modeling.
Rockpool Documentation
Creators: name: Muir, Dylan
name: Bauer, Felix
name: Weidel, Philipp
Publisher: name: Zenodo
Year: 2019
Subjects: spiking neural networks

description: Rockpool is a Python package for working with dynamical neural network architectures, particularly for designing event-driven networks for Neuromorphic computing hardware. Rockpool provides a convenient interface for designing, training and evaluating recurrent networks, which can operate both with continuous-time dynamics and event-driven dynamics.
title: An Adolescent Journey: Expressive Letter Writing Through a Wilderness Adventure Therapy Program
Creators: name: Crump, Ava M.
Publisher: name: Utah State University
Year: 2014

description: This qualitative phenomenological study explored the key themes of an adolescent journey during a wilderness adventure therapy program through expressive letter writing to their parents. Ten complete sets of letters (five boys and five girls) totaling over 400 pages were analyzed by four independent coders until saturation of themes were reached. There were five overarching themes that emerged from the data: impact of wilderness experiences, desires for improved relationships, apology and accountability, negative emotions, and positive growth and coping. These themes were presented in the chronological pattern that they appeared in the letters. The findings represent the adolescents’ experiences written in their own words. This research is the first of its kind and has implications for parents and adolescents who are considering this growing treatment modality of wilderness adventure therapy, and for professionals, especially family therapists, who can use the pattern in assessment and as an intervention tool in working with families.
Probing Axions through Tomography of Anisotropic Cosmic Birefringence
Creators: name: Greco, Alessandro
name: Bartolo, Nicola
name: Gruppuso, Alessandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Cosmic birefringence is the in-vacuo rotation of the linear polarization plane experienced by photons of the Cosmic Microwave Background (CMB) radiation when theoretically well-motivated parity-violating extensions of Maxwell electromagnetism are considered. If the angle, parametrizing such a rotation is dependent on the photon's direction, then this phenomenon is called Anisotropic Cosmic Birefringence (ACB). In this paper, we perform for the first time a tomographic treatment of the ACB, by considering photons emitted both at the recombination and reionization epoch. This allows one to extract additional and complementary information about the physical source of cosmic birefringence with respect to the isotropic case. We focus here on the case of an axion-like field $χ$, whose coupling with the electromagnetic sector induces such a phenomenon, by using an analytical and numerical approach (which involves a modification of the CLASS code). We find that the anisotropic component of cosmic birefringence exhibits a peculiar behavior: an increase of the axion mass implies an enhancement of the anisotropic amplitude, allowing to probe a wider range of masses with respect to the purely isotropic case. Moreover, we show that at large angular scales, the interplay between the reionization and recombination contributions to ACB is sensitive to the axion mass, so that at sufficiently low multipoles, for sufficiently light masses, the reionization contribution overtakes the recombination one, making the tomographic approach to cosmic birefringence a promising tool for investigating the properties of this axion-like field.
description: 24 pages, 5 figures. Matched the published version on JCAP
Tervishoiutöötajate pädevuse hindamine ja tagamine
Creators: name: Põlluste, Kaja
Publisher: name: OÜ Celsius Healthcare
Year: 2002

description: Artiklis on kirjeldatud eriarsti pädevuse hindamise kriteeriumeid ja selle korraldamise põhimõtteid Eestis.


Eesti Arst 2002; 81 (12): 798–803
description: Eesti Arst, Detsember 2002
Balneoteraapia ja võimlemine aitavad leevendada fibromüalgiasündroomi
Creators: name: Kaasik, Ain-Elmar
Publisher: name: OÜ Celsius Healthcare
Year: 2003

description: Fibromüalgia on sageli esinev tervisehäire, mida iseloomustavad püsivad ja difuussed musku- loskeletaarsed valud, kangustunne lihastes ja närvipunktide ning lihaste palpatoorne hellus, unehäired ja kiire väsimine. See nähtus tabab peaasjalikult naissoost isikuid ning selle tavaravi mittesteroidsete põletikuvastaste vahendite, analgeetikumide ja antidepressantidega ei ole sageli efektiivne (1). Füüsikaliste ravivõtete toimet sellele sündroomile on teaduslike meetoditega seni vähe uuritud.
description: Eesti Arst, Jaanuar 2003
Rockpool Documentation
Creators: name: Muir, Dylan
name: Bauer, Felix
name: Weidel, Philipp
Publisher: name: Zenodo
Year: 2022
Subjects: machine learning
spiking neural networks
python
open source
pytorch
jax

description: Rockpool is a Python package for working with dynamical neural network architectures, particularly for designing event-driven networks for Neuromorphic computing hardware. Rockpool provides a convenient interface for designing, training and evaluating recurrent networks, which can operate both with continuous-time dynamics and event-driven dynamics.
Asperfurandiones A and B, two antifungal furandione analogs from a marine-derived fungus Aspergillus versicolor
Creators: name: Ding, Lijian
name: Xu, Peng
name: Li, Te
name: Liao, Xiaojian
name: He, Shan
name: Xu, Shihai
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified

description: Two new furandione derivatives, designated as asperfurandiones A (1) and B (2), were isolated from the solid culture of the marine-derived fungus Aspergillus versicolor. Their structures were elucidated using a combination of mass spectrometry and NMR spectroscopy. Additionally, asperfurandiones A and B both showed moderate antifungal activity against Gaeumannomyces graminis, Cryptococcus neoformans, and Candida albicans with MIC values of 64 μg/mL.
The importance of fMRI and DTI in the presurgical planning of multicentric low-grade gliomas: a case report.
Creators: name: Beka, Katerina
Publisher: name: EURORAD
Year: 2016
Subjects: subject: Neuroradiology brain
subject: MR
subject: MR-Diffusion/Perfusion
subject: MR-Functional imaging
subject: Diagnostic procedure
subject: Neoplasia

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: male, 18 years
description: Clinical History: A 18 year-old male patient with a 3 months history of recurrent episodes of loss of consciousness. A thorough neurological examination as well as an EEG was performed, which were within normal limits. Final Diagnosis: Multicentric low grade gliomas
Post traumatic unilateral tension pneumocephalus
Creators: name: SINGH, CHITRANGADA
Publisher: name: EURORAD
Year: 2016
Subjects: subject: Head and neck
subject: CT
subject: Diagnostic procedure
subject: Dilation
subject: Obstruction / Occlusion
subject: Pathology
subject: Trauma

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: male, 24 years
description: Clinical History: A 24 year male patient presented to our emergency post road traffic accident with multiple head injuries and poor GCS . Patient was stabilized and a Plain CT scan Brain was performed to evaluate the extent and nature of head injuries. Patient was transfer... Final Diagnosis: Post traumatic unilateral tension pneumocephalus
Nonlinear magneto-gyrotropic photogalvanic effect
Creators: name: Diehl, H.
name: Shalygin, V. A.
name: Golub, L. E.
name: Tarasenko, S. A.
name: Danilov, S. N.
name: Bel'kov, V. V.
name: Novik, E. G.
name: Buhmann, H.
name: Brüne, C.
name: Ivchenko, E. L.
name: Ganichev, S. D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on the observation of nonlinear magneto-gyrotropic photogalvanic effect in HgTe/HgCdTe quantum wells. The interband absorption of mid-infrared radiation as well as the intrasubband absorption of terahertz radiation in the heterostructures is shown to cause a dc electric current in the presence of an in-plane magnetic field. A cubic in magnetic field component of the photocurrent is observed in quantum wells with the inverted band structure only. The experimental data are discussed in terms of both the phenomenological theory and microscopic models.
description: 10 pages, 9 figures
On the state of budgetary balance over time via the one-way classification model
Creators: name: EKHOSUEHI, Virtue U.
name: OYEGUE, Francis O.
Publisher: name: Wrocław University of Technology, Wrocław University of Economics, Polish Operational and Systems Research Society
Year: 2015
Subjects: budget
expenditure
fixed effects
one-way classification model
zero-sum constraint

description: OPERATIONS RESEARCH AND DECISIONS; ISSN 2081-8858
title: Some Effects of Modern Weapons Systems Development on the American Economy
Creators: name: Braginsky, Maurice
Publisher: name: Utah State University
Year: 1964

description: The Cold War goes on! And the use of military strength by the United States as a backdrop to other forms of persuation--political, ideological, diplomatic, and economic--continues. The use of a military backdrop as an instrument of national policy will probably continue indefinitely because it is unlikely that the Soviet Union or Communist China will change their objectives of expansionism; it is too much an integral part of their ideology. The easing of tensions between the United States and the Soviet Union since the Cuban crisis in 1962 is perhaps an indication of a change in tactics and diplomacy, but it would be naive to believe that the objective of a communist-dominated world has been forgotten. Further, the dispute between Communist China and the Soviet Union is not over the objective, but over the means of its achievement, and over who will control the world-wide Communist movement.
Ruin probability of a discrete-time risk process with proportional reinsurance and investment for exponential and Pareto distributions
Creators: name: JASIULEWICZ, Helena
name: KORDECKI, Wojciech
Publisher: name: Wrocław University of Technology, Wrocław University of Economics, Polish Operational and Systems Research Society
Year: 2015
Subjects: discrete time risk process
ruin probability
proportional reinsurance
Lundberg’s inequality
regularly varying tail

description: OPERATIONS RESEARCH AND DECISIONS; ISSN 2081-8858
Modelling the steady state of sewage networks as a support tool for their planning and analysis
Creators: name: PETRICZEK, Grażyna
name: STUDZIŃSKI, Jan
name: BOGDAN, Lucyna
Publisher: name: Wrocław University of Technology, Wrocław University of Economics, Polish Operational and Systems Research Society
Year: 2015
Subjects: hydraulic formulas for describingof sewage networks description
mathematical modeling
optimization and design planning of sewage networks

description: OPERATIONS RESEARCH AND DECISIONS; ISSN 2081-8858
Thomas-forbidden particle capture
Creators: name: Carter, John H.
name: Lieber, Michael
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: At high energies, in particle-capture processes between ions and atoms, classical kinematic requirements show that generally double collision Thomas processes dominate. However, for certain mass-ratios these processes are kinematically forbidden. This paper explores the possibility of capture for such processes by triple or higher order collision processes.
description: 34 pages and three figures
Rockpool Documentation
Creators: name: Muir, Dylan
name: Bauer, Felix
name: Weidel, Philipp
Publisher: name: Zenodo
Year: 2023
Subjects: machine learning
spiking neural networks
python
open source
pytorch
jax

description: Rockpool is a Python package for working with dynamical neural network architectures, particularly for designing event-driven networks for Neuromorphic computing hardware. Rockpool provides a convenient interface for designing, training and evaluating recurrent networks, which can operate both with continuous-time dynamics and event-driven dynamics.
Staged cooling of a fusion-grade plasma in a tokamak thermal quench
Creators: name: Li, Jun
name: Zhang, Yanzeng
name: Tang, Xian-Zhu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In tokamak disruptions where the magnetic connection length becomes comparable to or even shorter than the plasma mean-free-path, parallel transport can dominate the energy loss and the thermal quench of the core plasma goes through four phases (stages) that have distinct temperature ranges and durations. The main temperature drop occurs while the core plasma remains nearly collisionless, with the parallel electron temperature $T_{e\parallel}$ dropping in time $t$ as $T_{e\parallel}\propto t^{-2}$ and a cooling time that scales with the ion sound wave transit time over the length of the open magnetic field line. These surprising physics scalings are the result of effective suppression of parallel electron thermal conduction in an otherwise bounded collisionless plasma, which is fundamentally different from what are known to date on electron thermal conduction along the magnetic field in a nearly collisionless plasma.
Autovocoder: Fast Waveform Generation from a Learned Speech Representation using Differentiable Digital Signal Processing
Creators: name: Webber, Jacob J
name: Valentini-Botinhao, Cassia
name: Williams, Evelyn
name: Henter, Gustav Eje
name: King, Simon
Publisher: name: arXiv
Year: 2022
Subjects: subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Most state-of-the-art Text-to-Speech systems use the mel-spectrogram as an intermediate representation, to decompose the task into acoustic modelling and waveform generation. A mel-spectrogram is extracted from the waveform by a simple, fast DSP operation, but generating a high-quality waveform from a mel-spectrogram requires computationally expensive machine learning: a neural vocoder. Our proposed ``autovocoder'' reverses this arrangement. We use machine learning to obtain a representation that replaces the mel-spectrogram, and that can be inverted back to a waveform using simple, fast operations including a differentiable implementation of the inverse STFT. The autovocoder generates a waveform 5 times faster than the DSP-based Griffin-Lim algorithm, and 14 times faster than the neural vocoder HiFi-GAN. We provide perceptual listening test results to confirm that the speech is of comparable quality to HiFi-GAN in the copy synthesis task.
description: Accepted to the 2023 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2023)
The Real Meaning of Complex Minkowski-Space World-Lines
Creators: name: Adamo, T. M.
name: Newman, E. T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In connection with the study of shear-free null geodesics in Minkowski space, we investigate the real geometric effects in real Minkowski space that are induced by and associated with complex world-lines in complex Minkowski space. It was already known, in a formal manner, that complex analytic curves in complex Minkowski space induce shear-free null geodesic congruences. Here we look at the direct geometric connections of the complex line and the real structures. Among other items, we show, in particular, how a complex world-line projects into the real Minkowski space in the form of a real shear-free null geodesic congruence.
description: 16 pages
title: Concentrate Feed Handling Methods and Costs by Dairy and Beef Producers--Selected Utah Counties, 1961-1962
Creators: name: Brinkerhoff, Kendell W.
Publisher: name: Utah State University
Year: 1964

description: Utah is historically an agricultural state with many resources adapted to livestock production. The beef and dairy industries in Utah account for 40 and 15 percent respectively of the total receipts received from agricultural marketings (7). Utah's resources are less adapted to poultry production compared to livestock production. Nevertheless, poultry production represents a significant portion of the total agricultural receipts. Production of livestock and poultry have expanded beyond the state's capacity to produce concentrate feed to benefit from economy of scale and to increase farm size through intensification. This feed deficit in Utah must be supplied from sources outside the state. It is estimated that Utah is dependent upon out-of-state sources for approximately 60 percent of the concentrate feed used. With a limited quantity of concentrate feed, livestock and poultry industries can be increased only by increasing the amount of feed procured from other areas. Since Utah is a deficit feed producing area, prices of feeds in Utah are based upon prices in surplus producing areas plus the cost of transferring feeds from these areas.
title: Student Income and Spending Patterns at Utah State University
Creators: name: Dansie, Jesse Rodney
Publisher: name: Utah State University
Year: 1964

description: A large number of students have entered Cache County to attend Utah State University. These students are of economic significance to Cache County in two ways. First, they are buyers of consumer goods in the Cache County in two ways. First, they are buyers of consumer goods in the Cache Trade Area. Second, they represent a part of the labor forces in Cache County. The magnitude and nature of the economic activity of Utah State University students in Cache County have never been adequately measured.
It is the purpose of this study to develop marketing and economic facts concerning Utah State University students' income and spending patterns. It will provide information about the spending patterns of an important segment of the Cache County population. It will also supply empirical data which will be useful in further analytical studies of consumer's economic behavior in the development of student income and expenditure theory.
New supersymmetric $AdS_5$ black strings from 5D $N=4$ gauged supergravity
Creators: name: Karndumri, Parinya
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find a large class of new supersymmetric $AdS_5$ black strings from five-dimensional $N=4$ gauged supergravity coupled to five vector multiplets with $SO(2)_D\times SO(3)\times SO(3)$ gauge group. These solutions have near horizon geometries of the form $AdS_3\times Σ^2$ for $Σ^2$ being a two-sphere ($S^2$) or a hyperbolic space ($H^2$). There are four supersymmetric $AdS_5$ vacua with $N=4$ and $N=2$ supersymmetries. By performing topological twists along $Σ^2$ with $SO(2)\times SO(2)_{\textrm{diag}}$ and $SO(2)_{\textrm{diag}}$ gauge fields, we find a number of $AdS_3\times Σ^2$ fixed points describing near horizon geometries of black strings in asymptotically $AdS_5$ spaces. Most of the solutions take the form of $AdS_3\times H^2$ with only one being $AdS_3\times S^2$ preserving $SO(2)_{\textrm{diag}}$ symmetry. We also give the corresponding black string solutions interpolating between asymptotically locally $AdS_5$ vacua and the near horizon $AdS_3\times Σ^2$ geometries. There are a number of solutions flowing from one, two or three $AdS_5$ vacua to an $AdS_3\times Σ^2$ fixed point. These solutions can also be considered as holographic RG flows across dimensions from $N=2$ and $N=1$ SCFTs in four dimensions to two-dimensional SCFTs with $N=(2,0)$ or $N=(0,2)$ supersymmetry.
description: 31 pages, 7 figures, a sequel to arXiv: 2209.05270, typos corrected
Instances of Higher Geometry in Field Theory
Creators: name: Chatzistavrakidis, Athanasios
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Generalisations of geometry have emerged in various forms in the study of field theory and quantization. This mini-review focuses on the role of higher geometry in three selected physical applications. After motivating and describing some basic aspects of algebroid structures on bundles and (differential graded) Q-manifolds, we briefly discuss their relation to ($α$) the Batalin-Vilkovisky quantization of topological sigma models, ($β$) higher gauge theories and generalized global symmetries and ($γ$) tensor gauge theories, where the universality of their form and properties in terms of graded geometry is highlighted.
description: 15 pages; invited Mini-Review for the EPJ ST Special Issue: Noncommutativity and Physics
title: The Sonata Form and its Use in Beethoven's First Seventeen Piano Sonatas
Creators: name: Hammond, Kathryn
Publisher: name: Utah State University
Year: 1965

description: Beethoven's piano sonatas are possibly the greatest achievement in piano literature, perhaps in all musical literature. It has been said that if the forty-eight preludes and fuges of Bach's "Well-tempered Clavier" were to be considered the "Old Testament" of music, then Beethoven's thirty-two sonatas would have to be the "New Testament."
Transport through a double quantum dot with interdot repulsion
Creators: name: Nisikawa, Yunori
name: Oguri, Akira
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study transport through a double quantum dot with interdot hopping $t$, intradot repulsion $U$ and interdot repulsion $U^{\prime}$, using the numerical renormalization group (NRG) method. At half-filling, the conductances in two-terminal series and four-terminal parallel configuration are calculated via two phase shifts for quasi-particles of double quantum dot connected to two noninteracting leads with hybridization strength $Γ$. For small values of $t/Γ$ and $U^{\prime}/U$, conductance in the two-terminal series configuration is suppressed to almost zero. In this region, plateau of conductance in the four-terminal parallel configuration appears and almost reaches a unitary limit value $4e^{2}/h$ of two conducting modes. For large values of $t/Γ$ or $U^{\prime}/U$, both conductances are suppressed to almost zero. The conductance in the two-terminal series configuration almost reaches a unitary limit value $2e^{2}/h$ only around cross-over regions of electron-configuration in double quantum dot. Through the behavior of the local charge and some thermodynamic quantities, we discuss the relation between transport and electron-configuration.
description: To be published in "Journal of Physics: Condensed Matter"
Scaling laws for two-dimensional dendritic crystal growth in a narrow channel
Creators: name: Song, Younggil
name: Tourret, Damien
name: Karma, Alain
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate analytically and computationally the dynamics of 2D needle crystal growth from the melt in a narrow channel. Our analytical theory predicts that, in the low supersaturation limit, the growth velocity $V$ decreases in time $t$ as a power law $V \sim t^{-2/3}$, which we validate by phase-field and dendritic-needle-network simulations. Simulations further reveal that, above a critical channel width $Λ\approx 5l_D$, where $l_D$ the diffusion length, needle crystals grow with a constant $V
description: 6 pages, 4 figures, one supplementary material document with 1 figure
Assessing potential insights of an imperfect testing strategy: Parameter estimation and practical identifiability using early COVID-19 data in India
Creators: name: Bugalia, Sarita
name: Tripathi, Jai Prakash
Publisher: name: arXiv
Year: 2022
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: A deterministic model with testing of infected individuals has been proposed to investigate the potential consequences of the impact of testing strategy. The model exhibits global dynamics concerning the disease-free and a unique endemic equilibrium depending on the basic reproduction number when the recruitment of infected individuals is zero; otherwise, the model does not have a disease-free equilibrium, and disease never dies out in the community. Model parameters have been estimated using the maximum likelihood method with respect to the data of early COVID-19 outbreak in India. The practical identifiability analysis shows that the model parameters are estimated uniquely. The consequences of the testing rate for the weekly new cases of early COVID-19 data in India tell that if the testing rate is increased by 20% and 30% from its baseline value, the weekly new cases at the peak are decreased by 37.63% and 52.90%; and it also delayed the peak time by four and fourteen weeks, respectively. Similar findings are obtained for the testing efficacy that if it is increased by 12.67% from its baseline value, the weekly new cases at the peak are decreased by 59.05% and delayed the peak by 15 weeks. Therefore, a higher testing rate and efficacy reduce the disease burden by tumbling the new cases, representing a real scenario. It is also obtained that the testing rate and efficacy reduce the epidemic's severity by increasing the final size of the susceptible population. The testing rate is found more significant if testing efficacy is high. Global sensitivity analysis using partial rank correlation coefficients (PRCCs) and Latin hypercube sampling (LHS) determine the key parameters that must be targeted to worsen/contain the epidemic.
Deep Synoptic Array science I: discovery of the host galaxy of FRB 20220912A
Creators: name: Ravi, Vikram
name: Catha, Morgan
name: Chen, Ge
name: Connor, Liam
name: Faber, Jakob T.
name: Lamb, James W.
name: Hallinan, Gregg
name: Harnach, Charlie
name: Hellbourg, Greg
name: Hobbs, Rick
name: Hodge, David
name: Hodges, Mark
name: Law, Casey
name: Rasmussen, Paul
name: Sharma, Kritti
name: Sherman, Myles B.
name: Shi, Jun
name: Simard, Dana
name: Squillace, Reynier
name: Weinreb, Sander
name: Woody, David P.
name: Yadlapalli, Nitika
name: Ahumada, Tomas
name: Dong, Dillon
name: Fremling, Christoffer
name: Huang, Yuping
name: Karambelkar, Viraj
name: Miller, Jessie M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the detection and interferometric localization of the repeating fast radio burst (FRB) source FRB 20220912A during commissioning observations with the Deep Synoptic Array (DSA-110). Two bursts were detected from FRB 20220912A, one each on 2022 October 18 and 2022 October 25. The best-fit position is (R.A. J2000, decl. J2000) = (23:09:04.9, +48:42:25.4), with a 90% confidence error ellipse of $\pm2$ arcsec and $\pm1$ arcsec in right ascension and declination respectively. The two bursts have disparate polarization properties and temporal profiles. We find a Faraday rotation measure that is consistent with the low value of $+0.6$ rad m$^{-2}$ reported by CHIME/FRB. The DSA-110 localization overlaps with the galaxy PSO J347.2702+48.7066 at a redshift $z=0.0771$, which we identify as the likely host. PSO J347.2702$+$48.7066 has a stellar mass of approximately $10^{10}M_{\odot}$, modest internal dust extinction, and a star-formation rate likely in excess of $0.1\,M_{\odot}$ yr$^{-1}$. The host-galaxy contribution to the dispersion measure is likely $\lesssim50$ pc cm$^{-3}$. The FRB 20220912A source is therefore likely viewed along a tenuous plasma column through the host galaxy.
description: 10 pages, 7 figures, 2 tables, submitted to AAS Journals
Decisions involving databases, fuzzy databases and codatabases
Creators: name: SCHUMANN, Andrew
name: WOLEŃSKI, Jan
Publisher: name: Wrocław University of Technology, Wrocław University of Economics, Polish Operational and Systems Research Society
Year: 2015
Subjects: rough sets
fuzzy sets
decision making
labelled transition systems
coalgebras
Bayesian networks

description: OPERATIONS RESEARCH AND DECISIONS; ISSN 2081-8858
Cyclic products of Szegö kernels and spin structure sums I: hyper-elliptic formulation
Creators: name: D'Hoker, Eric
name: Hidding, Martijn
name: Schlotterer, Oliver
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Number Theory (math.NT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The summation over spin structures, which is required to implement the GSO projection in the RNS formulation of superstring theories, often presents a significant impediment to the explicit evaluation of superstring amplitudes. In this paper we discover that, for Riemann surfaces of genus two and even spin structures, a collection of novel identities leads to a dramatic simplification of the spin structure sum. Explicit formulas for an arbitrary number of vertex points are obtained in two steps. First, we show that the spin structure dependence of a cyclic product of Szegö kernels (i.e. Dirac propagators for worldsheet fermions) may be reduced to the spin structure dependence of the four-point function. Of particular importance are certain trilinear relations that we shall define and prove. In a second step, the known expressions for the genus-two even spin structure measure are used to perform the remaining spin structure sums. The dependence of the spin summand on the vertex points is reduced to simple building blocks that can already be identified from the two-point function. The hyper-elliptic formulation of genus-two Riemann surfaces is used to derive these results, and its $SL(2,\mathbb C)$ covariance is employed to organize the calculations and the structure of the final formulas. The translation of these results into the language of Riemann $\vartheta$-functions, and applications to the evaluation of higher-point string amplitudes, are relegated to subsequent companion papers.
description: 61 + 55 pages, v2: minor corrections, matches published version
Observations of M87 and Hydra A at 90 GHz
Creators: name: Cotton, W. D.
name: Mason, B. S.
name: Dicker, S.
name: Korngut, P.
name: Devlin, M. J.
name: Aguirre, J.
name: Benford, D.
name: Moseley, H.
name: Staguhn, J.
name: Irwin, K.
name: Ade, P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This paper presents new observations of the AGNs M87 and Hydra A at 90 GHz made with the MUSTANG bolometer array on the Green Bank Telescope at 8.5" resolution. A spectral analysis is performed combining this new data and archival VLA data on these objects at longer wavelengths. This analysis can detect variations in spectral index and curvature expected from energy losses in the radiating particles. M87 shows only weak evidence for steepening of the spectrum along the jet suggesting either re-acceleration of the relativistic particles in the jet or insufficient losses to affect the spectrum at 90 GHz. The jets in Hydra A show strong steepening as they move from the nucleus suggesting unbalanced losses of the higher energy relativistic particles. The difference between these two sources may be accounted for by the different lengths over which the jets are observable, 2 kpc for M87 and 45 kpc for Hydra A.
description: 11 pages, submitted to ApJ