cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Ionization State of Sodium in Galactic Winds
Creators: name: Murray, Norman
name: Martin, Crystal L.
name: Quataert, Eliot
name: Thompson, Todd A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Roughly 80% of Ultraluminous Infrared Galaxies (ULIRGs) show blue shifted absorption in the resonance lines of neutral sodium, indicating that cool winds are common in such objects, as shown by Rupke et al and by Martin. The neutral sodium (NaI) columns indicated by these absorption lines are ~ 10^{13}-3x10^{14}/cm^2, while the bolometric luminosity varies by a factor of only four. We show that the gas in ULIRG outflows is likely to be in photoionization equilibrium. The very small ULIRG sample of Goldader et al. demonstrates that the ratio of ultraviolet flux to far infrared flux varies by a factor $\sim100$ from object to object. While the Goldader sample does not overlap with those of Rupke et al. and Martin, we show that such a large variation in ultraviolet flux will produce a similar variation in the column of neutral sodium for a fixed mass flux and density. However, if the cold gas is in pressure equilibrium with a hot outflow with a mass loss rate similar to the star formation rate, the range of ionization state is significantly smaller. Measurements of the UV flux for objects in the Martin and Rupke et al. catalogs will definitively determine if photoionization effects are responsible for the wide variation seen in the sodium columns. If they are, a determination of the gas density and mass loss rate in the cool winds will follow, with attendant improvements in our understanding of wind driving mechanisms and of the effects of galaxies on their surroundings.
description: 14 pages, 5 figures, submitted to ApJ
Equilibrium Design for Concurrent Games
Creators: name: Gutierrez, Julian
name: Najib, Muhammad
name: Perelli, Giuseppe
name: Wooldridge, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Artificial Intelligence (cs.AI)
subject: Logic in Computer Science (cs.LO)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: In game theory, mechanism design is concerned with the design of incentives so that a desired outcome of the game can be achieved. In this paper, we study the design of incentives so that a desirable equilibrium is obtained, for instance, an equilibrium satisfying a given temporal logic property -- a problem that we call equilibrium design. We base our study on a framework where system specifications are represented as temporal logic formulae, games as quantitative concurrent game structures, and players' goals as mean-payoff objectives. In particular, we consider system specifications given by LTL and GR(1) formulae, and show that implementing a mechanism to ensure that a given temporal logic property is satisfied on some/every Nash equilibrium of the game, whenever such a mechanism exists, can be done in PSPACE for LTL properties and in NP/$Σ^{P}_{2}$ for GR(1) specifications. We also study the complexity of various related decision and optimisation problems, such as optimality and uniqueness of solutions, and show that the complexities of all such problems lie within the polynomial hierarchy. As an application, equilibrium design can be used as an alternative solution to the rational synthesis and verification problems for concurrent games with mean-payoff objectives whenever no solution exists, or as a technique to repair, whenever possible, concurrent games with undesirable rational outcomes (Nash equilibria) in an optimal way.
description: CONCUR 2019 with appendix
Salinas, Pedro (2013). Poesía inédita (ed. Monserrat Escartín). Madrid: Cátedra, pp. 504
Creators: name: González García, Juana María
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2014

description:

description: Rassegna iberistica
Generation of two-photon states with arbitrary degree of entanglement via nonlinear crystal superlattices
Creators: name: U'Ren, Alfred B.
name: Erdmann, Reinhard K.
name: de la Cruz-Gutierrez, Manuel
name: Walmsley, Ian A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate a general method of engineering the joint quantum state of photon pairs produced in spontaneous parametric downconversion (PDC). The method makes use of a superlattice structure of nonlinear and linear materials, in conjunction with a broadband pump, to manipulate the group delays of the signal and idler photons relative to the pump pulse, and realizes a joint spectral amplitude with arbitrary degree of entanglement for the generated pairs. This method of group delay engineering has the potential of synthesizing a broad range of states including factorizable states crucial for quantum networking and states optimized for Hong-Ou-Mandel interferometry. Experimental results for the latter case are presented, illustrating the principles of this approach.
description: 4 pages, 4 figures, accepted Phys. Rev. Lett
Quasinormal modes in the field of a dyon-like dilatonic black hole
Creators: name: Malybayev, A. N.
name: Boshkayev, K. A.
name: Ivashchuk, V. D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Quasinormal modes of massless test scalar field in the background of gravitational field for a non-extremal dilatonic dyonic black hole are explored. The dyon-like black hole solution is considered in the gravitational $4d$ model involving two scalar fields and two 2-forms. It is governed by two 2-dimensional dilatonic coupling vectors $\vecλ_i$ obeying $\vecλ_i (\vecλ_1 + \vecλ_2) > 0$, $i =1,2$. The first law of black hole thermodynamics is given and the Smarr relation is verified. Quasinormal modes for a massless scalar (test) field in the eikonal approximation are obtained and analysed. These modes depend upon a dimensionless parameter $a$ ($0 < a \leq 2$) which is a function of $\vecλ_i$. For limiting strong ($a = +0$) and weak ($a = 2$) coupling cases, they coincide with the well-known results for the Schwarzschild and Reissner-Nordström solutions. It is shown that the Hod conjecture, connecting the damping rate and the Hawking temperature, is satisfied for $0 < a \leq 1$ and all allowed values of parameters.
description: 13 pages, 5 (double) figures, LaTex. Subsection 3.3 is extended; two typos in formulas (22) and (30) are eliminated; 2 figures and 3 references are added; a paragraph in Sec. 1 and Remark on page 10 are added; several phrases are modified. To be published in EPJC
The impact of burned soil microbial community composition on environmental recovery and bioremediation
Creators: name: Lopez, Cindy
name: Meneses, Luisa
name: Ramirez, Diana
name: Baowen Zhang
name: Dao, Christopher
name: Mitchell, Keith
name: Krisanavane Reddi
name: Freise, Amanda C.
Publisher: name: F1000 Research Limited
Year: 2019

description: Wildfires have previously been shown to affect symbiotic relationships and dynamic feedback loops between plants and soil microbes thought to be crucial in the long-term stability of fire-adapted ecosystems. Understanding the microbial metabolic pathways involved in these feedback loops would provide information regarding potential methods to promote faster burned site recovery and bioremediation. The objective of this study is to observe how the Skirball Fire has impacted the community composition and metabolic pathways of the microbes sampled from the rhizosphere surrounding a burned Malosma laurina, a native Southern California plant. To investigate this, purified bacterial isolates cultured from soil site samples underwent functional assays to test for plant growth-promoting properties (PGPP) using phosphate solubilization and siderophore production assays, and bioremediation properties via carbonic anhydrase and urea hydrolysis assays. Most isolates, mainly those belonging to the Pantoea genus, showed high PGPP and minimal bioremediation properties, partially supporting our hypothesis. Extracted eDNA was sequenced using Illumina NextGen sequencing. Both microbial community composition and functional profiles were made for one year post-fire samples, one month post-fire samples, and control unburned soil samples via STAMP. The one-year post-fire community composition profile more closely mirrored the 2018 control unburned profile, demonstrating similar abundance for Actinobacteria and Firmicutes. KEGG enrichment analysis also showed a significant change in enrichment for PGP pathways in the one year- post fire samples. This suggests wildfires have a short-term impact on the microbial community composition and a long-term impact on the enrichment of bacterial community metagenomic DNA in PGPP and bioremediation pathways.
Plagiarism: Words and ideas
Creators: name: Bouville, Mathieu
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Plagiarism is a crime against academy. It deceives readers, hurts plagiarized authors, and gets the plagiarist undeserved benefits. However, even though these arguments do show that copying other people's intellectual contribution is wrong, they do not apply to the copying of words. Copying a few sentences that contain no original idea (e.g. in the introduction) is of marginal importance compared to stealing the ideas of others. The two must be clearly distinguished, and the 'plagiarism' label should not be used for deeds which are very different in nature and importance. Keywords: academic dishonesty; academic integrity; academic misconduct; cheating; copyright infringement; ethics; intellectual property; research misconduct
description: 8 pages
Design parameters for a nano-optical Yagi-Uda antenna
Creators: name: Hofmann, Holger F.
name: Kosako, Terukazu
name: Kadoya, Yutaka
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the possibility of directing optical emissions using a Yagi-Uda antenna composed of a finite linear array of nanoparticles. The relevant parameters characterizing the plasma resonances of the nanoparticles are identified and the interaction between the array elements is formulated accordingly. It is shown that the directionality of the optical emission can be observed even in the presence of non-negligible absorption losses in the nanoparticles. We conclude that a finite array of gold nanorods may be sufficient for the realization of a working nano-optical Yagi-Uda antenna.
description: 14 pages, including 7 figures and 3 tables
Feminine Play
Creators: name: Harkin, Stephanie
name: Ho, Xavier
name: Butt, Mahli-Ann
name: Maxwell, Jini
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 440501
subject: Feminist and queer theory
classificationCode: 460703
subject: Entertainment and gaming
classificationCode: 430309
subject: Gender history

description: Feminine Play draws on Stephanie Harkin's research on feminine games and play cultures. Feminine play has been overshadowed by traditional thinking that pairs games with boyhood, competition, and violence. Harkin coined the term "Techno-Femininity" to highlight how femininity and technology come together in various ways-across political 'cyber-feminist' movements to corporatised gendered electronic products. This exhibition and its accompanying catalogue highlights the many overlooked intersections of femininity and technology, but we also welcome forms of play that live outside of the digital. Curated works for this exhibition reimagine games and play and account for experiences and perspectives that have gone unnoticed. IGEA's Australia Plays 2023 Report found that Australians play games for improved wellbeing and a sense of community, and yet a decline in women players aged between 14-24 was reported. There is a need to address the cultural forces that disenfranchise girls from games at this critical point of girlhood. Yet femininity is not strictly "for girls." Femininity refers to traditions and values that have been assigned to girls and women in the past but can be taken on by anybody. But its long-held connection to gender has landed femininity in a position of cultural inferiority, infantilisation, and frivolousness in comparison to serious masculine pursuits. And yet, play has always had a silly and feminine side. Games have long explored feminine themes, from dressing up digital dolls to nurturing friendships and pixelated pets. While historically these have mostly been found in gendered games designed "for girls," today we see more and more game designers with various identities engaging with complex and radical interpretations of femininity. By curating an assortment of thoughtful games and playful creative works, this exhibition invites visitors into a meaningful dialogue around gender, culture, and games. The project offers intersectional perspectives on femininity in games from across Australia and New Zealand.
Heat capacity and phonon mean free path of wurtzite GaN
Creators: name: Danilchenko, B. A.
name: Paszkiewicz, T.
name: Wolski, S.
name: Jezowski, A.
name: Plackowski, T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on lattice specific heat of bulk hexagonal GaN measured by the heat flow method in the temperature range 20-300 K and by the adiabatic method in the range 5-70 K. We fit the experimental data using two temperatures model. The best fit with the accuracy of 3 % was obtained for the temperature independent Debye's temperature $θ_{\rm D}=365$ {\rm K} and Einstein's temperature $θ_{\rm E}=880$ {\rm K}. We relate these temperatures to the function of density of states. Using our results for heat conduction coefficient, we established in temperature range 10-100 K the explicit dependence of the phonon mean free path on temperature $\it{l}_{\rm ph}\propto T^{-2}$. Above 100 K, there is the evidence of contribution of the Umklapp processes which limit phonon free path at high temepratures. For phonons with energy $k_{\rm B}\times 300 $ {\rm K} the mean free path is of the order 100 {\rm nm}
description: 5 pages, 4 figures
Tortilla Making (B-roll)
Creators: name: Girado, Luther
name: Hammond, Jon
name: Hernandez, Betty
name: Hicks, Lucille
name: Grant, Laura
name: Turner, Julie
name: Everson, Merlene
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: xaw

description: This file, captured at one of the recorder’s houses, contains the speakers making tortillas and a discussion of the process behind it. This b-roll contains further exploration of the tortilla-making process as well as additional dishes with spring greens.
Black hole thermodynamics with generalized uncertainty principle
Creators: name: Myung, Yun Soo
name: Kim, Yong-Wan
name: Park, Young-Jai
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply the generalized uncertainty principle to the thermodynamics of a small black hole. Here we have a black hole system with the UV cutoff. It is shown that the minimal length induced by the GUP interrupts the Gross-Perry-Yaffe phase transition for a small black hole. In order to see whether the black hole remnant takes place a transition to a large black hole, we introduce a black hole in a cavity (IR system). However, we fail to show the phase transition of the remnant to the large black hole.
description: 11 pages, 4 eps.figures, version to appear in PLB
MOESM5 of Aromatase inhibitors and risk of cardiovascular events in breast cancer patients: a systematic review and meta-analysis
Creators: name: He, Yang
name: Zhang, Jianhua
name: Shen, Guofang
name: Liu, Lin
name: Zhao, Qingwei
name: Lu, Xiaoyang
name: Yang, Hongyu
name: Hong, Dongsheng
Publisher: name: figshare
Year: 2019
Subjects: Space Science
Medicine
Pharmacology
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified
Science Policy

description: Additional file 5: Table S1. PRISMA 2009 checklist for systematic review.
Forward coherent $ϕ$-meson photoproduction from deuterons near threshold
Creators: name: Chang, W. C.
name: Horie, K.
name: Shimizu, S.
name: Miyabe, M.
name: Ahn, D. S.
name: Ahn, J. K.
name: Akimune, H.
name: Asano, Y.
name: Date, S.
name: Ejiri, H.
name: Fukui, S.
name: Fujimura, H.
name: Fujiwara, M.
name: Hasegawa, S.
name: Hicks, K.
name: Hotta, T.
name: Imai, K.
name: Ishikawa, T.
name: Iwata, T.
name: Kato, Y.
name: Kawai, H.
name: Kim, Z. Y.
name: Kino, K.
name: Kohri, H.
name: Kumagai, N.
name: Lin, P. J.
name: Makino, S.
name: Matsuda, T.
name: Matsumura, T.
name: Matsuoka, N.
name: Mibe, T.
name: Miyachi, Y.
name: Morita, M.
name: Muramatsu, N.
name: Nakano, T.
name: Niiyama, M.
name: Nomachi, M.
name: Ohashi, Y.
name: Ohkuma, H.
name: Ooba, T.
name: Oshuev, D. S.
name: Rangacharyulu, C.
name: Sakaguchi, A.
name: Sasaki, T.
name: Shagin, P. M.
name: Shiino, Y.
name: Shimizu, A.
name: Shimizu, H.
name: Sugaya, Y.
name: Sumihama, M.
name: Toi, Y.
name: Toyokawa, H.
name: Wakai, A.
name: Wang, C. W.
name: Wang, S. C.
name: Yonehara, K.
name: Yorita, T.
name: Yoshimura, M.
name: Yosoi, M.
name: Zegers, R. G. T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Differential cross sections and decay asymmetries for coherent $ϕ$-meson photoproduction from deuterons were measured for the first time at forward angles using linearly polarized photons at $E_γ$= 1.5-2.4 GeV. This reaction offers a unique way to directly access natural-parity Pomeron dynamics and gluon exchange at low energies. The cross sections at zero degrees increase with increasing photon energy. The decay asymmetries demonstrate a complete dominance of natural-parity exchange processes, showing that isovector unnatural-parity $π$-meson exchange is small. Nevertheless the deduced cross sections of $ϕ$-mesons from nucleons contributed by isoscalar t-channel exchange processes are not well described by the conventional Pomeron model.
description: 14 pages, 6 figures. Final published version
CoBiToM Project -- I. Contact Binaries Towards Merging
Creators: name: Gazeas, K. D.
name: Loukaidou, G. A.
name: Niarchos, P. G.
name: Palafouta, S.
name: Athanasopoulos, D.
name: Liakos, A.
name: Zola, S.
name: Essam, A.
name: Hakala, P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Binary and multiple stellar systems are numerous in our solar neighborhood with 80 per cent of the solar-type stars being members of systems with high order multiplicity. The Contact Binaries Towards Merging (CoBiToM) Project is a programme that focuses on contact binaries and multiple stellar systems, as a key for understanding stellar nature. The goal is to investigate stellar coalescence and merging processes, as the final state of stellar evolution of low-mass contact binary systems. Obtaining observational data of approximately 100 eclipsing binaries and multiple systems and more than 400 archival systems, the programme aspires to give insights for their physical and orbital parameters and their temporal variations, e.g. the orbital period modulation, spot activity etc. Gravitational phenomena in multiple-star environments will be linked with stellar evolution. A comprehensive analysis will be conducted, in order to investigate the possibility of contact binaries to host planets, as well as the link between inflated hot Jupiters and stellar mergers. The innovation of CoBiToM Project is based on a multi-method approach and a detailed investigation, that will shed light for the first time on the origin of stellar mergers and rapidly rotating stars. In this work we describe the scientific rationale, the observing facilities to be used and the methods that will be followed to achieve the goals of CoBiToM Project and we present the first results as an example of the current research on evolution of contact binary systems.
description: 16 pages, 10 figure, 2 tables
Elixir-SE – the Swedish node
Creators: name: Persson, Bengt
name: Borg, Mikael
name: Lantz, Henrik
name: Jareborg, Niclas
name: Hagberg, Jonas
name: Lindvall, Jessica
name: Levander, Fredrik
name: Lindberg, Jessica
name: Feilitzen, Kalle Von
name: Oksvold, Per
name: Viklund, Johan
name: Freyhult, Pontus
name: Ahlberg, Malin
name: Kähäri, Andreas
name: Norling, Martin
name: Nanjiang Shu
name: Novella, Jon Ander
name: Bampalikis, Dimitrios
name: Kallberg, Yvonne
name: Dainat, Jacques
name: Binzer-Panchal, Mahesh
name: Soler, Lucile
name: Björklund, Åsa
name: Dethlefsen, Olga
name: Francis, Roy
name: Larsson, Tomas
name: Benfeitas, Rui
name: Czarnewski, Paulo
name: Martis-Thiele, Mihaela
name: Larsson, Anders
name: Spjuth, Ola
name: Kultima, Kim
Publisher: name: F1000 Research Limited
Year: 2019

description: NBIS (National Bioinformatics Infrastructure Sweden), forming the SciLifeLab Bioinformatics platform, provides excellence in bioinformatics support to researchers in Sweden, enabling world-class life science by offering support, infrastructure and advanced training. NBIS constitutes the Swedish node in Elixir. NBIS is a distributed infrastructure formed as a consortium of major Swedish universities with ~80 staff placed at all sites.

Sweden has been active since the start of Elixir, contributing with the Elixir Core Data Resource Human Protein Atlas and its integration into the Elixir landscape. Within Elixir-Excelerate, Elixir-SE has contributed with data management, sensitive data, including development of Federated EGA, capacity building in
genome assembly & annotation and single-cell transcripomics, data interoperability, and training.
Additional activities follow in the Elixir 2019 - 23 programme.
Tortilla Making
Creators: name: Girado, Luther
name: Hammond, Jon
name: Hernandez, Betty
name: Hicks, Lucille
name: Grant, Laura
name: Turner, Julie
name: Everson, Merlene
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: xaw

description: This file, captured at one of the recorder’s houses, contains the speakers making tortillas and a discussion of the process behind it.
Breaking the Coupled Cluster Barrier for Machine Learned Potentials of Large Molecules: The Case of 15-atom Acetylacetone
Creators: name: Qu, Chen
name: Houston, Paul
name: Conte, Riccardo
name: Nandi, Apurba
name: Bowman, Joel M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Machine-learned potential energy surfaces (PESs) for molecules with more than 10 atoms are typically forced to use lower-level electronic structure methods such as density functional theory and second-order Moller-Plesset perturbation theory (MP2). While these are efficient and realistic, they fall short of the accuracy of the ``gold standard'' coupled-cluster method, especially with respect to reaction and isomerization barriers. We report a major step forward in applying a $Δ$-machine learning method to the challenging case of acetylacetone, whose MP2 barrier height for H-atom transfer is low by roughly 1.5 kcal/mol relative to the benchmark CCSD(T) barrier of 3.2 kcal/mol. From a database of 2151 local CCSD(T) energies, and training with as few as 430 energies, we obtain a new PES with a barrier of 3.49 kcal/mol in agreement with the LCCSD(T) one of 3.54 kcal/mol and close to the benchmark value. Tunneling splittings due to H-atom transfer are calculated using this new PES, providing improved estimates over previous ones obtained using an MP2-based PES.
Haidt, Rebecca (2011). Women, Work and Clothing in Eighteenth-Century Spain. Oxford: Voltaire Foundation, pp. 345
Creators: name: Pessarrodona Pérez, Aurelia
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2014

description:

description: Rassegna iberistica
Referring Segmentation in Images and Videos with Cross-Modal Self-Attention Network
Creators: name: Ye, Linwei
name: Rochan, Mrigank
name: Liu, Zhi
name: Zhang, Xiaoqin
name: Wang, Yang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We consider the problem of referring segmentation in images and videos with natural language. Given an input image (or video) and a referring expression, the goal is to segment the entity referred by the expression in the image or video. In this paper, we propose a cross-modal self-attention (CMSA) module to utilize fine details of individual words and the input image or video, which effectively captures the long-range dependencies between linguistic and visual features. Our model can adaptively focus on informative words in the referring expression and important regions in the visual input. We further propose a gated multi-level fusion (GMLF) module to selectively integrate self-attentive cross-modal features corresponding to different levels of visual features. This module controls the feature fusion of information flow of features at different levels with high-level and low-level semantic information related to different attentive words. Besides, we introduce cross-frame self-attention (CFSA) module to effectively integrate temporal information in consecutive frames which extends our method in the case of referring segmentation in videos. Experiments on benchmark datasets of four referring image datasets and two actor and action video segmentation datasets consistently demonstrate that our proposed approach outperforms existing state-of-the-art methods.
description: 14 pages, 8 figures. arXiv admin note: substantial text overlap with arXiv:1904.04745
Goytisolo, Juan (2012). Paisajes después de la batalla (preliminares y estudio de crítica genética de Bénédicte Vauthier). Salamanca: Ediciones Universidad Salamanca, pp. 442
Creators: name: Bou, Enric
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2014

description:

description: Rassegna iberistica
Analytic spectrum of relic gravitational waves modified by neutrino free streaming and dark energy
Creators: name: Miao, H. X.
name: Zhang, Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We include the effect of neutrino free streaming into the spectrum of relic gravitational waves (RGWs) in the currently accelerating universe. For the realistic case of a varying fractional neutrino energy density and a non-vanishing derivative of mode function at the neutrino decoupling, the integro-differential equation of RGWs is solved by a perturbation method for the period from the neutrino decoupling to the matter-dominant stage. Incorporating it to the analytic solution of the whole history of expansion of the universe, the analytic solution of GRWs is obtained, evolving from the inflation up to the current acceleration. The resulting spectrum of GRWs covers the whole range of frequency $(10^{-19}\sim 10^{10})$Hz, and improves the previous results. It is found that the neutrino free-streaming causes a reduction of the spectral amplitude by $\sim 20%$ in the range $(10^{-16}\sim 10^{-10})$ Hz, and leaves the other portion of the spectrum almost unchanged. This agrees with the earlier numerical calculations. Examination is made on the difference between the accelerating and non-accelerating models, and our analysis shows that the ratio of the spectral amplitude in accelerating $Λ$CDM model over that in CDM model is $\sim 0.7$, and within the various accelerating models of $Ω_Λ> Ω_m $ the spectral amplitude is proportional to $ Ω_m/Ω_Λ$ for the whole range of frequency. Comparison with LIGO S5 Runs Sensitivity shows that RGWs are not yet detectable by the present LIGO, and in the future LISA may be able to detect RGWs in some inflationary models.
description: 22 pages,12 figures, accepeted by PRD
Systematic comparison of graph embedding methods in practical tasks
Creators: name: Zhang, Yi-Jiao
name: Yang, Kai-Cheng
name: Radicchi, Filippo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Network embedding techniques aim at representing structural properties of graphs in geometric space. Those representations are considered useful in downstream tasks such as link prediction and clustering. However, the number of graph embedding methods available on the market is large, and practitioners face the non-trivial choice of selecting the proper approach for a given application. The present work attempts to close this gap of knowledge through a systematic comparison of eleven different methods for graph embedding. We consider methods for embedding networks in the hyperbolic and Euclidean metric spaces, as well as non-metric community-based embedding methods. We apply these methods to embed more than one hundred real-world and synthetic networks. Three common downstream tasks -- mapping accuracy, greedy routing, and link prediction -- are considered to evaluate the quality of the various embedding methods. Our results show that some Euclidean embedding methods excel in greedy routing. As for link prediction, community-based and hyperbolic embedding methods yield overall performance superior than that of Euclidean-space-based approaches. We compare the running time for different methods and further analyze the impact of different network characteristics such as degree distribution, modularity, and clustering coefficients on the quality of the different embedding methods. We release our evaluation framework to provide a standardized benchmark for arbitrary embedding methods.
description: 13 pages, 6 figures, Supplemental Material available at this http://homes.sice.indiana.edu/filiradi/Mypapers/SM_systematic.pdf
Nonlinear dynamics and quantum chaos of a family of kicked $p$-spin models
Creators: name: Muñoz-Arias, Manuel H.
name: Poggi, Pablo M.
name: Deutsch, Ivan H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We introduce kicked $p$-spin models describing a family of transverse Ising-like models for an ensemble of spin-$1/2$ particles with all-to-all $p$-body interaction terms occurring periodically in time as delta-kicks. This is the natural generalization of the well-studied quantum kicked top ($p$=2)[Haake, Kuś, and Scharf, Z. Phys. B 65, 381 (1987)]. We fully characterize the classical nonlinear dynamics of these models, including the transition to global Hamiltonian chaos. The classical analysis allows us to build a classification for this family of models, distinguishing between $p=2$ and $p>2$, and between models with odd and even $p$'s. Quantum chaos in these models is characterized in both kinematic and dynamic signatures. For the latter we show numerically that the growth rate of the out-of-time-order correlator is dictated by the classical Lyapunov exponent. Finally, we argue that the classification of these models constructed in the classical system applies to the quantum system as well.
description: 14 pages, 6 figures, and appendices. Close to the published version
Spinato Bruschi, Patrizia (2013). La experiencia italiana de Miguel Ángel Asturias (1959-1973): Cartas del Premio Nobel y de doña Blanca a Giuseppe Bellini. Roma: Bulzoni Editore, pp. 186
Creators: name: Ferro, Donatella
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2014

description:

description: Rassegna iberistica
Bravi, Adrián N. (2013). L’albero e la vacca. Milano: Feltrinelli; Nottetempo, pp. 127
Creators: name: Spinato B., Patrizia
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2014

description:

description: Rassegna iberistica
Almeida, Júlia; Miglievich-Ribeiro, Adélia; Gomes, Heloísa T. (orgs.) (2013). Crítica pós colonial: Panorama de leituras contemporâneas. Rio de Janeiro: 7Letras, pp. 404
Creators: name: Nolasco Silva, Leonardo
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2014

description:

description: Rassegna iberistica
Shannon entropies of atomic structure factors, off-diagonal order and electron correlation
Creators: name: Sagar, Robin P.
name: Guevara, Nicolais L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Shannon entropies of one- and two-electron atomic structure factors in the position and momentum representations are used to examine the behavior of the off-diagonal elements of density matrices with respect to the uncertainty principle and to analyze the effects of electron correlation on off-diagonal order. We show that electron correlation induces off-diagonal order in position space which is characterized by larger entropic values. Electron correlation in momentum space is characterized by smaller entropic values as information is forced into regions closer to the diagonal. Related off-diagonal correlation functions are also discussed.
Marginal deformations from type IIA supergravity
Creators: name: Bobev, Nikolay
name: Bomans, Pieter
name: Gautason, Fridrik Freyr
name: Min, Vincent S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study marginal deformations of a class of three-dimensional $\mathcal{N}=2$ SCFTs that admit a holographic dual description in massive type IIA supergravity. We compute the dimension of the conformal manifold in these SCFTs and identify a special submanifold with enhanced flavor symmetry. We show how to apply the TsT transformation of Lunin-Maldacena to construct explicit supersymmetric AdS$_4$ solutions of massive type IIA supergravity with non-trivial internal fluxes that are the holographic dual of these marginal deformations. Finally, we also briefly comment on a class of RG flows between some of these SCFTs that also admit a holographic realization.
description: 26 pages
Nonequilibrium critical behavior of a species coexistence model
Creators: name: Reinhardt, Heiko
name: Boehm, Frank
name: Drossel, Barbara
name: Hinrichsen, Haye
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A biologically motivated model for spatio-temporal coexistence of two competing species is studied by mean-field theory and numerical simulations. In d>1 dimensions the phase diagram displays an extended region where both species coexist, bounded by two second-order phase transition lines belonging to the directed percolation universality class. The two transition lines meet in a multicritical point, where a non-trivial critical behavior is observed.
description: 11 pages
Bartual, Carles; Déri, Balázs; Faluba, Kálmán; Szijj, Ildikó (a cura de) (2013). Catalanística a Hongria (1971/72-2011/12). Budapest: Universitat Eötvös Loránd, pp. 208
Creators: name: Morales, Albert
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2014

description:

description: Rassegna iberistica
Flux of Primordial Monopoles
Creators: name: Dar, Shahida
name: Shafi, Qaisar
name: Sil, Arunansu
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss how in supersymmetric models with D and F-flat directions, a primordial monopole flux of order 10^{-16} - 10^{-18} cm^{-2} sec^{-1} sr^{-1} can coexist with the observed baryon asymmetry. A modified Affleck-Dine scenario yields the desired asymmetry if the monopoles are superheavy (~ 10^{13}-10^{18} GeV). For lighter monopoles with masses ~ 10^{9}-10^{12} GeV, the baryon asymmetry can arise via TeV scale leptogenesis.
description: 17 pages, 4 figures, revtex4
Thermodynamics of mixtures with strong negative deviations from Raoult's law. XVIII: Excess molar enthalpies for the (1-alkanol + cyclohexylamine) systems at 298.15 K and modelling
Creators: name: Sanz, Luis Felipe
name: González, Juan Antonio
name: de la Fuente, Isaías García
name: Cobos, José Carlos
name: Hevia, Fernando
Publisher: name: arXiv
Year: 2024
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Excess molar enthalpies, $H_{\text{m}}^{\text{E}}$, have been measured using a Tian-Calvet microcalorimeter for the systems CH$_3$(CH$_2$)$_{u-1}$OH ($u$ = 1,2,3,4,7,10) + cyclohexylamine at 298.15 K and 0.1 MPa. The $H_{\text{m}}^{\text{E}}$ values are large and negative, indicating the existence of strong interactions between unlike molecules, which is consistent with the also large and negative excess molar volumes, $V_{\text{m}}^{\text{E}}$, of these solutions, previously measured by us. The contribution from the equation of state term to $H_{\text{m}}^{\text{E}}$ has been evaluated for the 1-alkanol + cyclohexylamine, or + 1-hexylamine, or + aniline mixtures, and the corresponding excess molar internal energies at constant volume, $U_{\text{m,}V}^{\text{E}}$, have been determined. It is shown that such contribution is particularly important for the methanol + aniline system, in such a way that the excess functions $H_{\text{m}}^{\text{E}}$ and $U_{\text{m,}V}^{\text{E}}$ have different sign at $x_1$ = 0.5. The DISQUAC and ERAS models have been applied to the cyclohexylamine systems, and the interaction parameters have been reported. DISQUAC improves ERAS results on $H_{\text{m}}^{\text{E}}$. The latter model describes correctly the $V_{\text{m}}^{\text{E}}$ curves. The variation of of CH$_3$(CH$_2$)$_{u-1}$OH + cyclohexylamine, or + 1-hexylamine, or + aniline mixtures with $u$ along a homologous series with a given amine, or with the amine in mixtures with a given 1-alkanol is discussed in terms of the different interactional contributions to $H_{\text{m}}^{\text{E}}$.
Dissipative Landau-Zener transitions of a qubit: bath-specific and universal behavior
Creators: name: Saito, Keiji
name: Wubs, Martijn
name: Kohler, Sigmund
name: Kayanuma, Yosuke
name: Hanggi, Peter
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study Landau-Zener transitions in a qubit coupled to a bath at zero temperature. A general formula is derived that is applicable to models with a non-degenerate ground state. We calculate exact transition probabilities for a qubit coupled to either a bosonic or a spin bath. The nature of the baths and the qubit-bath coupling is reflected in the transition probabilities. For diagonal coupling, when the bath causes energy fluctuations of the diabatic qubit states but no transitions between them, the transition probability coincides with the standard LZ probability of an isolated qubit. This result is universal as it does not depend on the specific type of bath. For pure off-diagonal coupling, by contrast, the tunneling probability is sensitive to the coupling strength. We discuss the relevance of our results for experiments on molecular nanomagnets, in circuit QED, and for the fast-pulse readout of superconducting phase qubits.
description: 16 pages, 8 figures
Substitutional effects in TiFe for hydrogen storage: a comprehensive review
Creators: name: Dematteis, Erika Michela
name: Berti, Nicola
name: Cuevas, Fermin
name: Latroche, Michel
name: Baricco, Marcello
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The search for suitable materials for solid-state stationary storage of green hydrogen is pushing the implementation of efficient renewable energy systems. This involves rational design and modification of cheap alloys for effective storage in mild conditions of temperature and pressure. Among many intermetallic compounds described in the literature, TiFe-based systems have recently regained vivid interest as materials for practical applications since they are low-cost and they can be tuned to match required pressure and operation conditions. This work aims to provide a comprehensive review of publications involving chemical substitution in TiFe-based compounds for guiding compound design and materials selection in current and future hydrogen storage applications. Mono- and multi-substituted compounds modify TiFe thermodynamics and are beneficial for many hydrogenation properties. They will be reviewed and deeply discussed, with a focus on manganese substitution.
description: 76 pages, 7 Figures, 5 Tables
To rebuild the empire: Lu Chih (754-805) and his response to the mid-Tang predicament
Creators: name: Chiu-Drake, Josephine
Publisher: name: University of British Columbia
Year: 2008

description: This study examines Lu Chih's efforts to rebuild the Tang empire toward the end of the eighth century, revises the previous views of Lu Chih as either a pure pragmatist or a conservative moralist, and establishes the significance of his political endeavors in the context of the mid-Tang Confucian revival movement. After a thorough exploration of Lu's life and his family background, this work shows that two complementary principles underlay Lu Chih's approach to government: the principle of righteousness (1) and the principle of expediency (Ch'iian). Lu's application of these principles, especially his interpretation of ch'ilan, is demonstrated by reference to his memorials to emperor Te-tsung and by his political practice. My analysis of Lu's application of these principles leads me to conclude that Lu's approach to government, both moralistic and pragmatic, may be characterized as a Confucian pragmatist approach. Relying upon this approach during the earlier stage of his official life as a Han-lin scholar, Lu Chih is seen to have been instrumental in the restoration of dynastic stability. Lu Chih continued to employ his Confucian pragmatist approach in formulating a number of policies during his tenure as Chief Minister. His earlier advice to the throne as Han-lin scholar is consistently reflected in these policies designed to realize his vision of an ideal Confucian benevolent government. Although all of his proposed policies were intended to meet current needs, their ultimate goal is shown to be the improvement of the public well-being. Lu's commitment to the public good was such that he consciously risked his political life for the sake of his Confucian political convictions. A comparative analysis of Lu Chih's political and social concerns and those of the leading figures of the mid-T'ang Confucian revival reveals many close affinities, and thus establishes Lu Chih's genuine place among them. While he failed to break new conceptual ground for the Confucian revival, his political life alone is seen as a behavior paradigm of the ideal Confucian minister for the mid-Tang Confucian revivalists, and this is precisely Lu's unique contribution to that most significant mid-T'ang movement.
Improved measurements of branching fractions for B -> K pi and B -> pi pi decays
Creators: name: Lin, S. -W.
name: Chang, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report improved measurements of branching fractions for B -> K pi and B -> pi pi decays based on a data sample of 449 million B Bbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB e^+e^- collider. We also calculate the ratios of partial widths for the decays B -> K pi and pi pi, namely R_c = 1.08 +- 0.06 +- 0.08 and R_n = 1.08 +-0.08 +0.09-0.08, where the first and second errors are statistical and systematical, respectively. These ratios are sensitive to enhanced electroweak penguin contributions from new physics; the new measurements are, however, consistent with Standard Model expectations.
description: 6 pages, 1 figure
Gravitational-Wave Detector Networks: Standard Sirens on Cosmology and Modified Gravity Theory
Creators: name: Yang, Tao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct the catalogues of standard sirens (StS) based on the future gravitational wave (GW) detector networks, i.e., the second-generation ground-based advanced LIGO+advanced Virgo+KAGRA+LIGO-India (HLVKI), the third-generation ground-based Einstein Telescope+two Cosmic Explorer (ET+2CE), and the space-based LISA+Taiji. From the corresponding electromagnetic (EM) counterpart detectors for each networks, we sample the joint GW+EM detections from the probability to construct the Hubble diagram of standard sirens for 10 years detections of HLVKI, 5 years detections of ET+2CE, and 5 years of detections of LISA+Taiji, which we estimate would be available and released in the 2030s. Thus we construct a combined Hubble diagram from these ground and spaced-based detector networks to explore the expansion history of our Universe from redshift 0 to 7. We give a conservative and realistic estimation of the catalogue and Hubble diagram of GW standard sirens and their potential on studying cosmology and modified gravity theory in the 2030s. We adopt two strategies for the forecasts. One is the traditional model-fitting Markov-Chain Monte-Carlo method (MCMC). The results show that the combined StS alone can constrain the Hubble constant at the precision level of $0.34\%$, 1.76 times more tightly than the current most precise measurement from \textit{Planck}+BAO+Pantheon. The joint StS with current EM experiments will improve the constraints of cosmological parameters significantly. The modified gravity theory can be constrained with $0.46\%$ error from the GW propagation. In the second strategy, we use the machine-learning nonparametric reconstruction techniques, i.e., the Gaussian process (GP) with the Artificial Neural Networks (ANN) as a comparison. GP reconstructions can give comparable results with MCMC. We anticipate more works and research on these topics.
description: 36 pages, 15 figures, 2 tables, to match the JCAP version
On the climate variability and the recent abrupt cooling over Subpolar North Atlantic
Creators: name: Yang, Shuting
name: Christiansen, Bo
name: Drijfhout, Sybren
name: Mecking, Jennifer
Publisher: name: Zenodo
Year: 2019

description: Presentation held at the Workshop on climate prediction in the Atlantic-Arctic sector, Bergen, June 5-7, 2019
description: The Blue-Action project has received funding from the European Union's Horizon 2020 Research and Innovation Programme under Grant Agreement No 727852
Supplementary document for Detecting single infrared photons toward optimal system detection efficiency - 4932549.pdf
Creators: name: YOU, Lixing
name: hu, peng
name: Li, Hao
name: Wang, Heqing
name: You, Xiao
name: jia, huang
name: Yang, Xiaoyan
name: Zhang, Weijun
name: Wang, Zhen
name: Xie, Xiaoming
Publisher: name: Optica Publishing Group
Year: 2020
Subjects: Uncategorized

description: Device simulation,measurement , and results