cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gauge fixing in lattice QCD with multi-GPUs
Creators: name: Schröck, Mario
name: Vogt, Hannes
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Here we present the cuLGT code for gauge fixing in lattice gauge field theories with graphic processing units (GPUs). Implementations for SU(3) Coulomb, Landau and maximally Abelian gauge fixing are available and the overrelaxation, stochastic relaxation and simulated annealing algorithms are supported. Performance results for single and multi-GPUs are given.
description: Contribution to the proceedings of Excited QCD 2013, Bjelasnica Mountain, Sarajevo
Banach's theorem in higher order reverse mathematics
Creators: name: Hirst, Jeffry L.
name: Mummert, Carl
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03B30, 03F35, 03D65

description: In this paper, methods of second order and higher order reverse mathematics are applied to versions of a theorem of Banach that extends the Schroeder-Bernstein theorem. Some additional results address statements in higher order arithmetic formalizing the uncountability of the power set of the natural numbers. In general, the formalizations of higher order principles here have a Skolemized form asserting the existence of functionals that solve problems uniformly. This facilitates proofs of reversals in axiom systems with restricted choice.
description: Version: count-20230393arxiv.tex adding publication info in header and listing modifications
A Wireless and Battery-free Biosensor Based on Parallel Resonators for Monitoring a Wide Range of Biosignals
Creators: name: Hassan, Rehab S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applied Physics (physics.app-ph)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: This paper proposes a novel wireless, battery-free, and label-free biosensor for minimally invasive and non-invasive permittivity sensing for applications such as detecting glucose levels in the interstitial dermal fluid. The miniaturized, fully passive sensor is based on two symmetric parallel 0.8 mm$^3$ LC (inductor-capacitor) resonators. Each inductor is integrated with a conductive plate at one of its terminals. The passive sensor's main field is dominant outside the resonators, creating an effective capacitance outside the sensor, unlike reported in previous studies where the effective capacitance was limited to between the resonator lines. The proposed sensor was further analyzed under two different scenarios to change the region of effective capacitance and test its suitability for pressure monitoring, such as wound monitoring; first, by repositioning one of the two resonators, and second, by replacing one of the resonators with a conductive plate. The experimental results confirmed the proposed passive sensor's performance in detecting the glucose concentration in an aqueous solution with a sensitivity of 500 and 46 kHz/(mg/dL) for minimal invasive and non-invasive monitoring, respectively, within the glucose range of 0-500 mg/dL with volume sample requirements as low as 60 $μ$L. Further, by repositioning one of the resonators, the effective capacitance lies inside the passive sensor, making it suitable for wound monitoring. The results indicated that the resonance shift can be made fairly linear with respect to the variation in the separation between the resonators with a sensitivity of 2.5$\times 10^3$ MHz/mm within the separation range of 0.2-0.5 mm, considering separation as the main factor to sense the pressure or healing of the wound.
Rodríguez, Manuel José, Dios en la poesia española de posguerra. Ed. EUNSA (Colección Cultural de Bolsillo «Temas NT», n.° 38). 1 vol. de 302 ps. 110x180. Pamplona. 1977
Creators: name: Marques, José A.
Publisher: name: Theologica
Year: 1977

description: Theologica, v. 12 n. 1-4 (1977)
Improving attitudes and knowledge in a citizen science project about urban bat ecology
Creators: name: Greving, Hannah
name: Bruckermann, Till
name: Schumann, Anke
name: Straka, Tanja M.
name: Lewanzik, Daniel
name: Voigt-Heucke, Silke L.
name: Marggraf, Lara
name: Lorenz, Julia
name: Brandt, Miriam
name: Voigt, Christian C.
name: Harms, Ute
name: Kimmerle, Joachim
Publisher: name: Dedham, MA : Resilience Alliance
Year: 2022
Subjects: subject: attitudes
subject: bats
subject: citizen science
subject: content knowledge
subject: ecology
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft::333 | Boden- und Energiewirtschaft::333,7 | Natürliche Ressourcen, Energie und Umwelt
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: In order to deal with the current, dramatic decline in biodiversity, the public at large needs to be aware of and participate in biodiversity research activities. One way to do this is citizen science projects, in which researchers collaborate with volunteering citizens in scientific research. However, it remains unclear whether engaging in such projects has an impact on the learning outcomes of volunteers. Previous research has so far presented mixed results on the improvement of citizens’ attitudes and knowledge, mostly because such research has focused only on single aspects of citizen science projects in case studies. To address these limitations, we investigated the impact of an urban bat ecology project on citizens’ attitudes and knowledge about bats, and on their engagement with citizen science. We also examined whether the degree of citizen participation (i.e., collecting data vs. collecting and analyzing data) had an influence on the outcomes. We conducted four field studies and used a survey-based, experimental, pre-/post-measurement design. To vary the degree of participation, we assessed the post measurement in one group directly after data collection, whereas, in a second group, we assessed it after data collection and analysis, at the end of the project. Across all studies, the results demonstrated that citizens’ content knowledge of urban bat ecology increased, and their attitudes toward bats and toward their engagement in citizen science improved during their participation. Citizens’ degrees of participation did not influence these outcomes. Thus, our research illustrates that citizen science can increase awareness of urban bat conservation, independently of citizens’ degree of participation. We discuss the implications of our findings for the citizen science community. © 2022 by the author(s).
Attenuation of turbulence in a periodic cube by finite-size spherical solid particles
Creators: name: Oka, Sunao
name: Goto, Susumu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: To investigate the attenuation of turbulence in a periodic cube due to the addition of spherical solid particles, we conduct direct numerical simulations using an immersed boundary method with resolving flow around each particle. Numerical results with systematically changing particle diameters and Stokes numbers for a fixed volume fraction $Λ$ show that the additional energy dissipation rate in the wake of particles determines the degree of the attenuation of turbulent kinetic energy. On the basis of this observation, we propose the formulae describing the condition and degree of the attenuation of turbulence intensity. We conclude that particles with the size proportional to $λ/\sqrtγ$, where $λ$ and $γ$ are the Taylor length and the mass density ratio between particles and fluid, most significantly reduce the intensity of developed turbulence under the condition that $γ$ and $Λ$ are fixed.
Additional file 1 of Experiences of participating in a problem-solving intervention with workplace involvement in Swedish primary health care: a qualitative study from rehabilitation coordinator's, employee's, and manager's perspectives
Creators: name: Karlsson, Ida
name: Kwak, Lydia
name: Axén, Iben
name: Bergström, Gunnar
name: Bültmann, Ute
name: Holmgren, Kristina
name: Björk Brämberg, Elisabeth
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Neuroscience
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Interview guides.
Días Plaja, Guilhermo, En torno a Cervantes. Ed. EUNSA (Colección Cultural de Bolsillo «Temas NT», n.° 36). 1 vol. de 222 ps. 110x180. Pamplona. 1977
Creators: name: Marques, José A.
Publisher: name: Theologica
Year: 1977

description: Theologica, v. 12 n. 1-4 (1977)
Test of Genuine Multipartite Nonlocality
Creators: name: Mao, Ya-Li
name: Li, Zheng-Da
name: Yu, Sixia
name: Fan, Jingyun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: While Bell nonlocality of a bipartite system is counter-intuitive, multipartite nonlocality in our many-body world turns out to be even more so. Recent theoretical study reveals in a theory-agnostic manner that genuine multipartite nonlocal correlations cannot be explained by any causal theory involving fewer-partite nonclassical resources and global shared randomness. Here we provide a Bell-type inequality as a test for genuine multipartite nonlocality in network by exploiting a matrix representation of the causal structure of a multipartite system. We further present experimental demonstrations that both four-photon GHZ state and generalized four-photon GHZ state significantly violate the inequality, i.e., the observed four-partite correlations resist explanations involving three-way nonlocal resources subject to local operations and common shared randomenss, hence confirming that nature is boundless multipartite nonlocal.
Carbon Abundances of Metal-Poor Star Determined from the C I 1.068-1.069 micron Lines
Creators: name: Takeda, Yoichi
name: Takada-Hidai, Masahide
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A non-LTE analysis of C I lines at 1.068-1.069 micron was carried out for selected 46 halo/disk stars covering a wide metallicity range (-3.7
description: 16 pages, 8 figures, 3 tables and 2 electronic tables; accepted for publication in Publ. Astron. Soc. Japan (Vol.65, No. 4)
Experimental Demonstration that No Tripartite-Nonlocal Causal Theory Explains Nature's Correlations
Creators: name: Cao, Huan
name: Renou, Marc-Olivier
name: Zhang, Chao
name: Massé, Gaël
name: Coiteux-Roy, Xavier
name: Liu, Bi-Heng
name: Huang, Yun-Feng
name: Li, Chuan-Feng
name: Guo, Guang-Can
name: Wolfe, Elie
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum theory predicts the existence of genuinely tripartite-entangled states, which cannot be obtained from local operations over any bipartite entangled states and unlimited shared randomness. Some of us recently proved that this feature is a fundamental signature of quantum theory. The state $\left|{GHZ}_3\right\rangle=(\left|000\right\rangle+\left|111\right\rangle)/\sqrt{2}$ gives rise to tripartite quantum correlations which cannot be explained by any causal theory limited to bipartite nonclassical common causes of any kind (generalising entanglement) assisted with unlimited shared randomness. Hence, any conceivable physical theory which would reproduce quantum predictions will necessarily include genuinely tripartite resources. In this work, we verify that such tripartite correlations are experimentally achievable. We derive a new device-independent witness capable of falsifying causal theories wherein nonclassical resources are merely bipartite. Using a high-performance photonic $\left|{GHZ}_3\right\rangle$ states with fidelities of $ 0.9741\pm0.002$, we provide a clear experimental violation of that witness by more than $26.3$ standard deviation, under the locality and fair sampling assumption. We generalise our work to the $\left|{GHZ}_4\right\rangle$ state, obtaining correlations which cannot be explained by any causal theory limited to tripartite nonclassical common causes assisted with unlimited shared randomness.
description: See related work by Ya-Li Mao et al. (arXiv:2201.12753). 12 pages (7 of appendices), 5 figures (2 in appendices). H.C., M-O.R. and C.Z contributed equally to this work
Quantum loop effects on the power spectrum and constraints on primordial black holes
Creators: name: Choudhury, Sayantan
name: Panda, Sudhakar
name: Sami, M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a detailed exposition on the prospects of the formation of Primordial Black Holes (PBHs) during Slow Roll (SR) to Ultra Slow Roll (USR) sharp transitions in the framework of single-field inflation. We use an effective field theory (EFT) approach in order to keep the analysis model-independent and applicable to both the canonical and non-canonical cases. We show in detail how renormalizing the power spectrum to one loop order in $P(X,ϕ)$ theories severely limits the prospects for PBH formation in a single-field inflationary framework. We demonstrate that for the allowed range of effective sound speed, $1
description: 69 pages, 10 figures, 1 table, 5 Appendix, Reference updated, Substantially improved version, Comparison with other contemporary works added, Conclusion unchanged, Comments are welcome, Revised version accepted for publication in JCAP
Barbotin, Edmond, El lenguaje del cuerpo. Ed. EUNSA (Colección Cultural de Bolsillo «Temas NT», n.º 33 e 34), 2 vols. de 204 e 308 ps. 110x180. Pamplona. 1977
Creators: name: Marques, José A.
Publisher: name: Theologica
Year: 1977

description: Theologica, v. 12 n. 1-4 (1977)
Towards a Synergy-based Approach to Measuring Information Modification
Creators: name: Lizier, Joseph T.
name: Flecker, Benjamin
name: Williams, Paul L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: 94A15

description: Distributed computation in artificial life and complex systems is often described in terms of component operations on information: information storage, transfer and modification. Information modification remains poorly described however, with the popularly-understood examples of glider and particle collisions in cellular automata being only quantitatively identified to date using a heuristic (separable information) rather than a proper information-theoretic measure. We outline how a recently-introduced axiomatic framework for measuring information redundancy and synergy, called partial information decomposition, can be applied to a perspective of distributed computation in order to quantify component operations on information. Using this framework, we propose a new measure of information modification that captures the intuitive understanding of information modification events as those involving interactions between two or more information sources. We also consider how the local dynamics of information modification in space and time could be measured, and suggest a new axiom that redundancy measures would need to meet in order to make such local measurements. Finally, we evaluate the potential for existing redundancy measures to meet this localizability axiom.
description: 9 pages, 4 figures
Additional file 1 of Effect of epigenetics on vitamin D levels: a systematic review until December 2020
Creators: name: Forouhari, Ali
name: Heidari-Beni, Motahar
name: Veisi, Shaahin
name: Poursafa, Parnian
name: Kelishadi, Roya
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Supplementary Material 1
Vários, Introdución y análisis del arte actual. Ed. EUNSA (Colección Cultural de Temas NT. n.° 37). Tradução e notas de Luis Felipe Bausá. 1 vol de 272 ps. 110x180. Pamplona. 1977
Creators: name: Marques, José A.
Publisher: name: Theologica
Year: 1977

description: Theologica, v. 12 n. 1-4 (1977)
Consistency Analysis of ChatGPT
Creators: name: Jang, Myeongjun Erik
name: Lukasiewicz, Thomas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: ChatGPT has gained a huge popularity since its introduction. Its positive aspects have been reported through many media platforms, and some analyses even showed that ChatGPT achieved a decent grade in professional exams, adding extra support to the claim that AI can now assist and even replace humans in industrial fields. Others, however, doubt its reliability and trustworthiness. This paper investigates the trustworthiness of ChatGPT and GPT-4 regarding logically consistent behaviour, focusing specifically on semantic consistency and the properties of negation, symmetric, and transitive consistency. Our findings suggest that while both models appear to show an enhanced language understanding and reasoning ability, they still frequently fall short of generating logically consistent predictions. We also ascertain via experiments that prompt designing, few-shot learning and employing larger large language models (LLMs) are unlikely to be the ultimate solution to resolve the inconsistency issue of LLMs.
description: 15 pages
Localizations of the Category of $A_\infty$ Categories and Internal Homs
Creators: name: Canonaco, Alberto
name: Ornaghi, Mattia
name: Stellari, Paolo
Publisher: name: Deutsche Mathematiker-Vereinigung
Year: 2019

description: We prove that the localizations of the categories of dg categories, of cohomologically unital and strictly unital $A_\infty$ categories with respect to the corresponding classes of quasi-equivalences are all equivalent. Moreover we show that the last two localizations are equivalent to the corresponding quotients by the relation of being isomorphic in the cohomology of the $A_\infty$ category of $A_\infty$ functors. As an application we give a complete proof of a claim by Kontsevich stating that the category of internal Homs for two dg categories can be described as the category of strictly unital $A_\infty$ functors between them.
description: DOCUMENTA MATHEMATICA, Vol 24 (2019), p. 2463-2492, 1431-0643
Castelo Branco, Camilo, O Sangue. Ed. Parceria A. M. Pereira. Vol. XXVIII+268 pgs. 195x133. Lisboa. 1973
Creators: name: Faria, Manuel Ferreira De
Publisher: name: Theologica
Year: 1977

description: Theologica, v. 12 n. 1-4 (1977)
A unified stochastic particle method based on the Bhatnagar-Gross-Krook model for polyatomic gases and its combination with DSMC
Creators: name: Fei, Fei
name: Hu, Yuan
name: Jenny, Patrick
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Simulating hypersonic flow around a space vehicle is challenging because of the multiscale and nonequilibrium nature inherent in these flows. To effectively deal with such flows, a novel particle particle hybrid scheme combining the stochastic particle Bhatnagar-Gross-Krook (BGK) method with Direct Simulation Monte Carlo (DSMC) was developed recently, but only for monatomic gases [Fei et. al., J. Comput. Phys. 2021]. Here this work is extended to the particle-particle hybrid method for polyatomic gases. In the near continuum regime, employing the Ellipsoidal Statistical BGK model proposed by Y. Dauvois, et. al. [Eur. J. Mech. B Fluids, 2021] with discrete levels of vibrational energy, the stochastic particle BGK method is first established following the idea of the unified stochastic particle BGK (USPBGK) scheme. In the fluid limit, it has been proven to be of second order temporal and spatial accuracy. Then, the USPBGK scheme with rotational and vibrational energies is combined with DSMC to construct a hybrid method for polyatomic gases. The present hybrid scheme is validated with numerical tests of homogenous relaxation, 1D shock structure and 2D hypersonic flows past a wedge and a cylinder. Compared to traditional stochastic particle methods, the proposed hybrid method can achieve higher accuracy at a much lower computational cost. Therefore, it is a more efficient tool to study multiscale hypersonic flows.
A Pair of Early- and Late-Forming Galaxy Cluster Samples: a Novel Way of Studying Halo Assembly Bias Assisted by a Constrained Simulation
Creators: name: Lin, Yen-Ting
name: Miyatake, Hironao
name: Guo, Hong
name: Chiang, Yi-Kuan
name: Chen, Kai-Feng
name: Lan, Ting-Wen
name: Chang, Yu-Yen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The halo assembly bias, a phenomenon referring to dependencies of the large-scale bias of a dark matter halo other than its mass, is a fundamental property of the standard cosmological model. First discovered in 2005 from the Millennium Run simulation, it has been proven very difficult to be detected observationally, with only a few convincing claims of detection so far. The main obstacle lies in finding an accurate proxy of the halo formation time. In this study, by utilizing a constrained simulation that can faithfully reproduce the observed structures larger than $2\,$Mpc in the local universe, for a sample of 634 massive clusters at $z\le 0.12$, we find their counterpart halos in the simulation and use the mass growth history of the matched halos to estimate the formation time of the observed clusters. This allows us to construct a pair of early- and late-forming clusters, with similar mass as measured via weak gravitational lensing, and large-scale bias differing at $\approx 3σ$ level, suggestive of the signature of assembly bias, which is further corroborated by the properties of cluster galaxies, including the brightest cluster galaxy, and the spatial distribution and number of member galaxies. Our study paves a way to further detect assembly bias based on cluster samples constructed purely on observed quantities.
description: 10 pages, 4 Figures. Accepted for publication in A&A
Stabilization of three-dimensional charge order through interplanar orbital hybridization in Pr$_x$Y$_{1-x}$Ba$_2$Cu$_3$O$_{6+δ}$
Creators: name: Ruiz, Alejandro
name: Gunn, Brandon
name: Lu, Yi
name: Sasmal, Kalyan
name: Moir, Camilla M.
name: Basak, Rourav
name: Huang, Hai
name: Lee, Jun-Sik
name: Rodolakis, Fanny
name: Boyle, Timothy J.
name: Walker, Morgan
name: He, Yu
name: Blanco-Canosa, Santiago
name: Neto, Eduardo H. da Silva
name: Maple, M. Brian
name: Frano, Alex
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The shape of 3$d$-orbitals often governs the electronic and magnetic properties of correlated transition metal oxides. In the superconducting cuprates, the planar confinement of the $d_{x^2-y^2}$ orbital dictates the two-dimensional nature of the unconventional superconductivity and a competing charge order. Achieving orbital-specific control of the electronic structure to allow coupling pathways across adjacent planes would enable direct assessment of the role of dimensionality in the intertwined orders. Using Cu-$L_3$ and Pr-$M_5$ resonant x-ray scattering and first-principles calculations, we report a highly correlated three-dimensional charge order in Pr-substituted YBa$_2$Cu$_3$O$_{7}$, where the Pr $f$-electrons create a direct orbital bridge between CuO$_2$ planes. With this, we demonstrate that interplanar orbital engineering can be used to surgically control electronic phases in correlated oxides and other layered materials.
Sanguineti, Juan José, La filosofía de la ciência según Santo Tomás. Ed. EUNSA. 1 vol. de 371 ps. 145x215. Pamplona. 1977
Creators: name: Mateo-Seco, Lucas Francisco
Publisher: name: Theologica
Year: 1977

description: Theologica, v. 12 n. 1-4 (1977)
Aphanes arvensis Hudson
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: R. arvensis Hudson Cat. 95. Bis 1440 m. l: Les Gietes bei St-Maurice (Marietan); Bois Noir (Garns); unter Salvan (Coquoz); Outre- Rhone (Garns). - 3: Nördlich Täsch, 1440 m (Gaillard). Var. repens (Scop.) Christ (var. typica R. Keller) f. Rothii (Seidel) - l: Ob Monthey (Wolf); zwischen Troistorrents und Morgins (idem). Var. pilifolia Borbäs- l: Mieville (Coquoz); Les Martenaux bei Collonges (Garns).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Nonstandard Null Lagrangians and Gauge Functions and Dissipative Forces in Dynamics
Creators: name: Segovia, A. L.
name: Vestal, L. C.
name: Musielak, Z. E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Standard and non-standard Lagrangians that give the same equation of motion are significantly different in their forms, as the latter do not have terms that clearly discernable energy-like expressions. A special family of these Lagrangians are null Lagrangians and their gauge functions. It is shown that non-standard null Lagrangians and their gauge functions can be used to introduce dissipative forces to dynamical systems. With standard null Lagrangians being known for introducing non-dissipative forces, the presented results allow for a complete picture of novel roles played by null Lagrangians in introducing forces to dynamics. Applications of the results to Newton's laws are presented and their Galilean invariance is discussed.
Comparison of confidence regions for quantum state tomography
Creators: name: de Almeida, Jessica O.
name: Kleinmann, Matthias
name: Sentís, Gael
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The quantum state associated to an unknown experimental preparation procedure can be determined by performing quantum state tomography. If the statistical uncertainty in the data dominates over other experimental errors, then a tomographic reconstruction procedure must express this uncertainty. A rigorous way to accomplish this is via statistical confidence regions in state space. Naturally, the size of this region decreases when increasing the number of samples, but it also depends critically on the construction method of the region. We compare recent methods for constructing confidence regions as well as a reference method based on a Gaussian approximation. For the comparison, we propose an operational measure with the finding, that there is a significant difference between methods, but which method is preferable can depend on the details of the state preparation scenario.
description: 20 pages, 4 figures
Thermal Correlators in the ρ channel of two-flavor QCD
Creators: name: Brandt, Bastian B.
name: Francis, Anthony
name: Meyer, Harvey B.
name: Wittig, Hartmut
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a lattice QCD calculation with two dynamical flavors of the isovector vector correlator in the high-temperature phase. We analyze the correlator in terms of the associated spectral function, for which we review the theoretical expectations. In our main analysis, we perform a fit for the difference of the thermal and vacuum spectral functions, and we use an exact sum rule that constrains this difference. We also perform a direct fit for the thermal spectral function, and obtain good agreement between the two analyses for frequencies below the two-pion threshold. Under the assumption that the spectral function is smooth in that region, we give an estimate of the electrical conductivity.
description: (1+25) pages, 11 figures
Monefeldt, Fannie A. Simonpietri, Lo individual y sus relaciones internas en Alfred North Whitehead. Ed. EUNSA. 1 vol. de 145 ps. 145x215. Pamplona. 1977
Creators: name: Marques, José A.
Publisher: name: Theologica
Year: 1977

description: Theologica, v. 12 n. 1-4 (1977)
Additional file 1 of Conducting school-based health surveys with secondary schools in England: advice and recommendations from school staff, local authority professionals, and wider key stakeholders, a qualitative study
Creators: name: Hatch, Lorna M.
name: Widnall, Emily C.
name: Albers, Patricia N.
name: Hopkins, Georgina L.
name: Kidger, Judi
name: de Vocht, Frank
name: Kaner, Eileen
name: van Sluijs, Esther M. F.
name: Fairbrother, Hannah
name: Jago, Russell
name: Campbell, Rona M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Sociology
subject: FOS: Sociology

description: Additional file 1: Supplementary file 1. SW-SHRN School Contact Interview Topic Guide.
Activation of entanglement in teleportation
Creators: name: Weinar, Ryszard
name: Laskowski, Wieslaw
name: Pawlowski, Marcin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the activation of entanglement in teleportation protocols. To this end, we a present derivation of the average fidelity of teleportation process with noisy classical channel for qudits. In our work we do not make any assumptions about the entangled states shared by communicating parties. Our result allows us to specify the minimum amount of classical information required to beat the classical limit when the protocol is based on the Bell measurements. We also compare average fidelity of teleportation obtained using noisy and perfect classical channel with restricted capacity. The most important insight into the intricacies of quantum information theory that we gain is that though entanglement, obviously, is a necessary resource for efficient teleportation it requires a certain threshold amount of classical communication to be more useful than classical communication. Another interesting finding is that the amount of classical communication required to activate entanglement for teleportation purposes depends on the dimension d of the system being teleported but is not monotonic reaching maximum for d = 4.
description: 4 pages, 4 figures
Topology optimization of flexoelectric metamaterials with apparent piezoelectricity
Creators: name: Greco, Francesco
name: Codony, David
name: Mohammadi, Hossein
name: Fernandez-Mendez, Sonia
name: Arias, Irene
Publisher: name: arXiv
Year: 2023
Subjects: subject: Applied Physics (physics.app-ph)
subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The flexoelectric effect, coupling polarization and strain gradient as well as strain and electric field gradients, is universal to dielectrics, but, as compared to piezoelectricity, it is more difficult to harness as it requires field gradients and it is a small-scale effect. These drawbacks can be overcome by suitably designing metamaterials made of a non-piezoelectric base material but exhibiting apparent piezoelectricity. We develop a theoretical and computational framework to perform topology optimization of the representative volume element of such metamaterials by accurately modeling the governing equations of flexoelectricity using a Cartesian B-spline method, describing geometry with a level set, and resorting to genetic algorithms for optimization. We consider a multi-objective optimization problem where area fraction competes with four fundamental piezoelectric functionalities (stress/strain sensor/ actuator). We computationally obtain Pareto fronts, and discuss the different geometries depending on the apparent piezoelectric coefficient being optimized. In general, we find competitive estimations of apparent piezoelectricity as compared to reference materials such as quartz and PZT ceramics. This opens the possibility to design devices for sensing, actuation and energy harvesting from a much wider, cheaper and effective class of materials.
Control of the flow behind a backward-facing step by visual feedback
Creators: name: Gautier, N.
name: Aider, J-L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The separated flow downstream a backward-facing step is controlled using visual information for feedback. This is done when looking at the flow from two vantage points. Flow velocity fields are computed in real-time and used to yield inputs to a control loop. This approach to flow control is shown to be able to control the detached flow in the same way as has been done before by using the area of the recirculation region downstream the step as input for a gradient descent optimization scheme. Visual feedback using real-time computations of 2D velocity fields also allows for novel inputs to the feedback scheme. As a proof of concept, the spatially averaged value of the swirling strength is successfully used as input for an automatically tuned PID controller.
Automatic defect segmentation by unsupervised anomaly learning
Creators: name: Ofir, Nati
name: Yacobi, Ran
name: Granoviter, Omer
name: Levant, Boris
name: Shtalrid, Ore
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: This paper addresses the problem of defect segmentation in semiconductor manufacturing. The input of our segmentation is a scanning-electron-microscopy (SEM) image of the candidate defect region. We train a U-net shape network to segment defects using a dataset of clean background images. The samples of the training phase are produced automatically such that no manual labeling is required. To enrich the dataset of clean background samples, we apply defect implant augmentation. To that end, we apply a copy-and-paste of a random image patch in the clean specimen. To improve the robustness of the unlabeled data scenario, we train the features of the network with unsupervised learning methods and loss functions. Our experiments show that we succeed to segment real defects with high quality, even though our dataset contains no defect examples. Our approach performs accurately also on the problem of supervised and labeled defect segmentation.
Un experimento de demostración formal de un teorema de nivel intermedio en álgebra (Formalizing the proof of an intermediate-level algebra theorem -- An experiment)
Creators: name: Chambert-Loir, Antoine
Publisher: name: arXiv
Year: 2023
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: F.4.1
subject: 20B

description: Proof assistants are computer softwares that allow us to write mathematical proofs so as to assess their correctness. In November 2021, I started the project of checking the simplicity of the alternating groups within the Lean theorem prover and its mathlib library. This text aims at reviewing this experiment. -- (French) Les assistants de preuves sont des logiciels qui permettent de rédiger des démonstrations mathématiques et d'en garantir leur correction. En novembre 2021, j'ai débuté un projet de vérification de la simplicité des groupes alternés au sein de l'assistant de preuve Lean, et de sa librairie mathlib. Ce texte est un essai de compte rendu de cette expérience. -- Published version in Spanish
description: 18 pages
García López, Jesús, Estúdios de metafísica tomista. Ed. EUNSA. 1 vol. de 272 ps. 145x215. Pamplona. 1976
Creators: name: Marques, José A.
Publisher: name: Theologica
Year: 1977

description: Theologica, v. 12 n. 1-4 (1977)
Low energy electron-phonon effective action from symmetry analysis
Creators: name: Cabra, D. C.
name: Grandi, N. E.
name: Silva, G. A.
name: Sturla, M. B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Based on a detailed symmetry analysis, we state the general rules to build up the effective low energy field theory describing a system of electrons weakly interacting with the lattice degrees of freedom. The basic elements in our construction are what we call the "memory tensors", that keep track of the microscopic discrete symmetries into the coarse-grained action. The present approach can be applied to lattice systems in arbitrary dimensions and in a systematic way to any desired order in derivatives. We apply the method to the honeycomb lattice and re-obtain the by now well-known effective action of Dirac fermions coupled to fictitious gauge fields. As a second example, we derive the effective action for electrons in the kagomé lattice, where our approach allows to obtain in a simple way the low energy electron-phonon coupling terms.
description: 18 pages, one figure
Towards modified bimetric theories within non-product spectral geometry
Creators: name: Bochniak, Arkadiusz
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss class of doubled geometry models with diagonal metrics. Based on the analysis of known examples we formulate a hypothesis that supports treating them as modified bimetric gravity theories. Certain steps towards the generic case are then performed.
description: 9 pages
Techno-economic analysis of alternate fuel sources for non-electrified rail operations: a case study in the Czech Republic
Creators: name: Zenith, Federico
name: Landmark, Andreas D.
name: Skeidsvoll, Line
Publisher: name: Zenodo
Year: 2023
Subjects: railway
technical-economic analysis
viability
simulation

description: Objectives  The availability of new power sources such as hydrogen and battery offers new alternatives for upgrading from ICE on non-electrifified railway lines. However, the comparison of technologies requires an in-depth analysis of technical, economic and operational requirements. In this paper, we evaluate the techno-economic feasibility of different energy sources (electrification, battery, and hydrogen against ICE) for a Czech railway line. Methods  We establish energy requirements using single-train simulations on track models, including height profiles and models of various rollingstock using air and rolling resistance and tractive-effort curves. The different technologies are compared by benefit-cost ratio, payback period, capex/opex and annualised investment cost – based on the development in energy prices. This is an extension of previous work on freight simulations. Results  We show the feasibility and the benefit-cost ratio of the different alternatives, which indicates the economic viability of ICE-alternatives such as hydrogen and hydrogen-battery hybrids. As expected, catenary electrification is not competitive, even if its operating costs are lower. Battery trains are at the limit of technical feasibility with a 120 km non-electrified line, but have the best benefit-to-cost ratio; hydrogen trains can be integrated into a hydrogen distribution network supporting other forms of transport. Both would be cheaper overall than diesel. Conclusions  Electrification of regional trains is not only possible with new technologies such as battery and hydrogen but is also likely to be significantly cheaper than continued diesel operation. The benefit is between 20 and 50% of costs and payback times of about 2 years.
Comparison of metrics from retarded integrals and transverse traceless subgauge
Creators: name: Lewis, R. A.
name: Modanese, G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The time-varying gravitational field produced by a Weber bar is used to explore mathematical features of the linearized Einstein equation. We present a self-contained formal framework for the treatment of the linear field, which is applicable to several situations where the standard quadrupolar formulas are not adequate. The expressions for retarded integrals reveal a singularity associated with boundary conditions. Results from the transverse traceless subgauge are compared with the radiation calculated from retarded integrals. Lienard-Wiechert potentials are used in a treatment of the Weber bar as a collection of point particles and further possible applications are outlined. The Riemann tensor clarifies the transition from near-field geodesic forces to tidal forces in the far field.
description: 27 pages, 5 figures. Submitted to J. Math. Phys
On the Euler-Poincaré equation with non-zero dispersion
Creators: name: Li, Dong
name: Yu, Xinwei
name: Zhai, Zhichun
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35Q35

description: We consider the Euler-Poincaré equation on $\mathbb R^d$, $d\ge 2$. For a large class of smooth initial data we prove that the corresponding solution blows up in finite time. This settles an open problem raised by Chae and Liu \cite{Chae Liu}. Our analysis exhibits some new concentration mechanism and hidden monotonicity formula associated with the Euler-Poincaré flow. In particular we show the abundance of blowups emanating from smooth initial data with certain sign properties. No size restrictions are imposed on the data. We also showcase a class of initial data for which the corresponding solution exists globally in time.
description: 18 pages
Additional file 2 of Conducting school-based health surveys with secondary schools in England: advice and recommendations from school staff, local authority professionals, and wider key stakeholders, a qualitative study
Creators: name: Hatch, Lorna M.
name: Widnall, Emily C.
name: Albers, Patricia N.
name: Hopkins, Georgina L.
name: Kidger, Judi
name: de Vocht, Frank
name: Kaner, Eileen
name: van Sluijs, Esther M. F.
name: Fairbrother, Hannah
name: Jago, Russell
name: Campbell, Rona M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Sociology
subject: FOS: Sociology

description: Additional file 2: Supplementary file 2. SW-SHRN Key Stakeholder Interview Topic Guide.
The Need For Speed: Rapid Refitting Techniques for Bayesian Spectral Characterization of the Gravitational Wave Background Using PTAs
Creators: name: Lamb, William G.
name: Taylor, Stephen R.
name: van Haasteren, Rutger
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Pulsar timing arrays (PTAs) have recently found evidence for a nanohertz-frequency stochastic gravitational-wave background (SGWB). Constraining its spectral characteristics will reveal its origins. To achieve this, we must understand how data and modeling conditions in each pulsar influence the precision and accuracy of SGWB spectral recovery, typically requiring many Bayesian analyses on real data sets and large-scale simulations that are slow and computationally taxing. To combat this, we have developed several new rapid approaches that operate on intermediate SGWB analysis products. These techniques refit SGWB spectral models to previously computed Bayesian posterior estimates of the timing power spectra. We test our new techniques on simulated PTA data sets and the NANOGrav 12.5-year data set, where in the latter our refit posterior achieves a Hellinger distance -- bounded between 0 for identical distributions and 1 for zero overlap -- from the current full production-level pipeline that is < 0.1. Our techniques are ~ $10^2$--$10^4$ times faster than the production-level likelihood and scale much more favorably (sub-linearly) as a PTA is expanded with new pulsars or observations. Our techniques also allow us to demonstrate conclusively that SGWB spectral characterization in PTA data sets is driven by the longest-timed pulsars and the best-measured power spectral densities. Indeed, the common-process spectral properties found in the NANOGrav 12.5-year data set are given by analyzing only the ~14 longest-timed pulsars out of the full 45 pulsar array, and we find that the 'shallowing' of the common-process power-law model occurs when gravitational-wave frequencies higher than ~50 nanohertz are included. The implementation of our techniques is openly available as a software suite to allow fast and flexible PTA SGWB spectral characterization and model selection.
description: 22 pages, 13 figures. Accepted to Physical Review D
Celestial Blocks and Transverse Spin in the Three-Point Energy Correlator
Creators: name: Chen, Hao
name: Moult, Ian
name: Sandor, Joshua
name: Zhu, Hua Xing
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Quantitative theoretical techniques for understanding the substructure of jets at the LHC enable new insights into the dynamics of QCD, and novel approaches to search for new physics. Recently, there has been a program to reformulate jet substructure in terms of correlation functions, $\langle \mathcal{E}(\vec n_1) \mathcal{E}(\vec n_2) \cdots \mathcal{E}(\vec n_k) \rangle$, of light-ray operators, $\mathcal{E}(\vec n)$, allowing the application of techniques developed in the study of Conformal Field Theories (CFTs). In this paper we further develop these techniques in the particular context of the three-point correlator $\langle \mathcal{E}(\vec n_1) \mathcal{E}(\vec n_2) \mathcal{E}(\vec n_3) \rangle$, using recently computed perturbative data in both QCD and $\mathcal{N}=4$ sYM. We derive the celestial blocks appearing in the light-ray operator product expansion (OPE) of the three-point correlator, and use the Lorentzian inversion formula to extract the spectrum of light-ray operators appearing in the expansion, showing, in particular, that the OPE data is analytic in transverse spin. Throughout our presentation, we highlight the relation between the OPE approach, and more standard splitting function based approaches of perturbative QCD, emphasizing the utility of the OPE approach for incorporating symmetries in jet substructure calculations. We hope that our presentation introduces a number of new techniques to the jet substructure community, and also illustrates the phenomenological relevance of the study of light-ray operators in the OPE limit to the CFT community.
description: 75 pages, 16 figures