cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Energy release rate for cracks in finite-strain elasticity
Creators: name: Knees, Dorothee
name: Mielke, Alexander
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: Griffith fracture criterion
subject: energy release rate
subject: finite-strain elasticity
subject: 74B20
subject: 74R10

description: Griffith's fracture criterion describes in a quasistatic setting whether or not a pre-existing crack in an elastic body is stationary for given external forces. In terms of the energy release rate (ERR), which is the derivative of the deformation energy of the body with respect to a virtual crack extension, this criterion reads: If the ERR is less than a specific constant, then the crack is stationary, otherwise it will grow. In this paper, we consider geometrically nonlinear elastic models with polyconvex energy densities and prove that the ERR is well defined. Moreover, without making any assumption on the smoothness of minimizers, we derive rigorously the well-known Griffith formula and the $J$-integral, from which the ERR can be calculated. The proofs are based on a weak convergence result for Eshelby tensors.
High-momentum proton removal from 16O and the (e,e'p) cross section
Creators: name: Polls, A.
name: Radici, M.
name: Boffi, S.
name: Dickhoff, W. H.
name: Muether, H.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The cross section for the removal of high-momentum protons from 16O is calculated for high missing energies. The admixture of high-momentum nucleons in the 16O ground state is obtained by calculating the single-hole spectral function directly in the finite nucleus with the inclusion of short-range and tensor correlations induced by a realistic meson-exchange interaction. The presence of high-momentum nucleons in the transition to final states in 15N at 60-100 MeV missing energy is converted to the coincidence cross section for the (e,e'p) reaction by including the coupling to the electromagnetic probe and the final state interactions of the outgoing proton in the same way as in the standard analysis of the experimental data. Detectable cross sections for the removal of a single proton at these high missing energies are obtained which are considerably larger at higher missing momentum than the corresponding cross sections for the p-wave quasihole transitions. Cross sections for these quasihole transitions are compared with the most recent experimental data available.
description: 26 RevTex pages, 7 ps figures
Dynamical and many-body correlation effects in the kinetic energy spectra of isotopes produced in nuclear multifragmentation
Creators: name: Souza, S. R.
name: Donangelo, R.
name: Tsang, M. B.
name: Lynch, W. G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The properties of the kinetic energy spectra of light isotopes produced in the breakup of a nuclear source and during the deexcitation of its products are examined. The initial stage, at which the hot fragments are created, is modeled by the Statistical Multifragmentation Model, whereas the Weisskopf-Ewing evaporation treatment is adopted to describe the subsequent fragment deexcita- tion, as they follow their classical trajectories dictated by the Coulomb repulsion among them. The energy spectra obtained are compared to available experimental data. The influence of the fusion cross-section entering into the evaporation treatment is investigated and its influence on the qual- itative aspects of the energy spectra turns out to be small. Although these aspects can be fairly well described by the model, the underlying physics associated with the quantitative discrepancies remains to be understood.
description: 7 pages, 4 figures
Integrable dynamics of coupled Fermi-Bose condensates
Creators: name: Yuzbashyan, Emil A.
name: Kuznetsov, Vadim B.
name: Altshuler, Boris L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the mean-field dynamics of a fermionic condensate interacting with a single bosonic mode (a generalized Dicke model). This problem is integrable and can be mapped onto a corresponding BCS problem. We derive the general solution and a full set of integrals of motion for the time evolution of coupled Fermi-Bose condensates. The present paper complements our earlier study of the dynamics of the BCS model (cond-mat/0407501 and cond-mat/0505493). Here we provide a self-contained introduction to the variable separation method, which enables a complete analytical description of the evolution of the generalized Dicke, BCS, and other similar models.
description: 21 pages, no figures
Spillover Effects of Foreign Direct Investment on Export Sophistication: Evidence from Chinese Domestic Manufacturing Firms
Creators: name: Liu, Haiyun
name: Wang, Xuefeng
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: The rapid growth of China’s export sophistication and the driving factors are a matter of discussion in the literature. This study constructs a new measurement for net sophistication by utilizing the world input-output database and excluding the technologies embodied in foreign inputs. We find that although China’s net sophistication has been increasing, it is much lower than that of developed countries. Based on new measurements, we explore the impact of FDI on domestic firms’ net sophistication in China using data from 2000 to 2010. The results suggest that FDI has competition effects on domestic firms. Net sophistication may increase in the short term as domestic firms adjust their production by reducing the use of foreign technology to reduce costs. However, this increase in net sophistication is not sustainable without technological upgrades. Under long-term competition from foreign firms, domestic firms’ net sophistication decreases. Our findings provide clear policy implications for labor-rich developing countries that seek to upgrade exports by attracting FDI.
Asymptotic behavior of observables in the asymmetric quantum Rabi model
Creators: name: Semple, J.
name: Kollar, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The asymmetric quantum Rabi model with broken parity invariance shows spectral degeneracies in the integer case, that is when the asymmetry parameter equals an integer multiple of half the oscillator frequency, thus hinting at a hidden symmetry and accompanying integrability of the model. We study the expectation values of spin observables for each eigenstate and observe characteristic differences between the integer and noninteger cases for the asymptotics in the deep strong coupling regime, which can be understood from a perturbative expansion in the qubit splitting. We also construct a parent Hamiltonian whose exact eigenstates possess the same symmetries as the perturbative eigenstates of the asymmetric quantum Rabi model in the integer case.
description: 19 pages, 4 figures
The evolving role of libraries in the scholarly ecosystem
Creators: name: Webster, Keith
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: Library and Information Studies
subject: FOS: Media and communications

description: This chapter outlines the ways in which libraries have been transformed by advances in scholarly publishing, by new patterns of student and researcher information behaviour, and by the emergence of new approaches to scholarly communication. It reviews the development of research collections over the past 20 years, and the emergence of online journals and books. The impact of government and research funder policies on libraries is discussed, with specific reference to research assessment, open access and data curation. Finally, consideration is given to the impact of new players in the scholarly information landscape.
BeppoSAX - ROSAT PSPC observations of the Shapley Supercluster: A3562
Creators: name: Ettori, S.
name: Bardelli, S.
name: De Grandi, S.
name: Molendi, S.
name: Zamorani, G.
name: Zucca, E.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a combined analysis of the BeppoSAX and ROSAT PSPC observation of the cluster of galaxies A3562, a massive member of the core of the Shapley Supercluster. With a complex and interacting structure composed from two groups of galaxies and A3558 to the West, the surface brightness of A3562 shows excess in the sectors to East and South when compared with an azimuthally averaged model of the emission. The emission tends to be flatter, and the distribution of the gas broader, along the merging axis and in opposition to the two groups. We present the first determination of the gradients of the gas temperature and metallicity for a cluster in the Shapley region at large distance from cluster center. From an analysis of the BeppoSAX data in annuli and sectors, we observe both the profiles to be flat within 8 arcmin (0.62 Mpc), with an emission-weighted values of kT = 5.1+-0.2 keV and Z = 0.39+-0.05 Zsolar. The value of the temperature is consistent with recent ASCA measurements and is significantly higher than previous estimates obtained from ROSAT and EXOSAT. We discuss the possible reasons of this disagreement. Between 8 and 20 arcmin, the plasma temperature declines to about 3.2 keV. When a polytropic profile is used to represent the gas temperature profile, the best fit polytropic index is 1.16+-0.03. These results imply a total mass within the virial radius of 3.9 (+-0.4) 10^14 h_50^-1 Msolar, between 40 and 80 per cent lower than the optical estimate, and a gas mass fraction of about 30 per cent.
description: 11 pages. Accepted for publication in MNRAS
Material and social relations in a coastal community garden assemblage
Creators: name: Campbell, Lindsay K.
name: Svendsen, Erika S.
name: Reynolds, Renae
name: Marshall, Victoria
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Neuroscience
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: This paper draws upon Actor Network Theory (ANT) to explore material and social dynamics of a coastal community garden site on public housing grounds in Rockaway, NY after Hurricane Sandy. Through a participatory design-research project, we examine shifting associations between humans and non-humans as a way of interrogating agency, power dynamics, and governance. Acknowledging our own outsider status, we draw upon the frame of ‘contact zones’ for thinking through encounters in conditions of power differentials. In describing our encounter with the Beach 41st Street Community Garden as a contact zone, we identify three assemblages with different governance arrangements – tidal shore, garden plots, and treed lawn. These assemblages are networked through material flows and include nonhuman actants such as freshwater, soil, plants, and wood. Unruly actors and actants – people, saltwater, poison ivy, dogs, and trash – can spark controversy and resist governing. We reflect upon the role of design, research, and community organizing as interventions that can cause rearrangements of the assemblages, shedding new light on power dynamics and potential apertures for change in a dynamic site. In so doing, we mobilize contact zones and ANT to better understand and act within shifting associations between humans and non-humans.
UQ’s Biological Sciences Library
Creators: name: Webster, Keith
Publisher: name: Carnegie Mellon University
Year: 2007
Subjects: subject: Library and Information Studies
subject: FOS: Media and communications

description: The article focuses on the Biological Sciences Library built by the University of Queensland at its Saint Lucia campus. It describes the design, layout and interior of the library, which was designed by Wilson Architects. It cites the efforts by Wilson Architects to maximise the benefits of the Queensland climate by replacing the library's concrete walls with glass and creating an outdoors study area.
Trion Species-Resolved Quantum Beats in MoSe2
Creators: name: Shepard, Gabriella D.
name: Ardelean, Jenny V.
name: Rhodes, Daniel A.
name: Zhu, X. -Y.
name: Hone, James C.
name: Strauf, Stefan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Monolayer photonic materials offer a tremendous potential for on-chip optoelectronic devices. Their realization requires knowledge of optical coherence properties of excitons and trions that have so far been limited to nonlinear optical experiments carried out with strongly inhomogenously broadened material. Here we employ h-BN encapsulated and electrically gated MoSe2 to reveal coherence properties of trion-species directly in the linear optical response. Autocorrelation measurements reveal long dephasing times up to T2=1.16+-0.05 ps for positively charged excitons. Gate dependent measurements provide evidence that the positively-charged trion forms via spatially localized hole states making this trion less prone to dephasing in the presence of elevated hole carrier concentrations. Quantum beat signatures demonstrate coherent coupling between excitons and trions that have a dephasing time up to 0.6 ps, a two-fold increase over those in previous reports. A key merit of the prolonged exciton/trion coherences is that they were achieved in a linear optical experiment, and thus are directly relevant to applications in nanolasers, coherent control, and on-chip quantum information processing requiring long photon coherence.
description: 21 pages, 6 figures, 2 SOI figures
Phase Transition in the chiral $σ$-$ω$ model with dilatons
Creators: name: Papazoglou, P.
name: Schaffner, J.
name: Schramm, S.
name: Zschiesche, D.
name: Stöcker, H.
name: Greiner, W.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the properties of different modifications to the linear $σ$-model (including a dilaton field associated with broken scale invariance) at finite baryon density $ρ$ and nonzero temperature $T$. The explicit breaking of chiral symmetry and the way the vector meson mass is generated are significant for the appearance of a phase of nearly vanishing nucleon mass besides the solution describing normal nuclear matter. The elimination of the abnormal solution prohibits the onset of a chiral phase transition but allows to lower the compressibility to a reasonable range. The repulsive contributions from the vector mesons are responsible for the wide range of stability of the normal phase in the $(μ,T)$-plane. The abnormal solution becomes not only energetically preferable to the normal state at high temperature or density, but also mechanically stable due to the inclusion of dilatons.
description: 21 pages, RevTeX
Additional file 2 of Comparative transcriptome analyses of fruit development among pears, peaches, and strawberries provide new insights into single sigmoid patterns
Creators: name: Pei, Mao-Song
name: Cao, Su-Hao
name: Wu, Lei
name: Wang, Guo-Ming
name: Xie, Zhi-Hua
name: Gu, Chao
name: Zhang, Shao-Ling
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Plant Biology

description: Additional file 2: Figure S2. Commonly and specially expressed genes in five period of three fruit species.
Control landscapes for a class of non-linear dynamical systems: sufficient conditions for the absence of traps
Creators: name: Russell, Benjamin
name: Vuglar, Shanon
name: Rabitz, Herschel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optimization and Control (math.OC)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We establish three tractable, jointly sufficient conditions for the control landscapes of non-linear control systems to be trap free comparable to those now well known in quantum control. In particular, our results encompass end-point control problems for a general class of non-linear control systems of the form of a linear time invariant term with an additional state dependent non-linear term. Trap free landscapes ensure that local optimization methods (such as gradient ascent) can achieve monotonic convergence to effective control schemes in both simulation and practice. Within a large class of non-linear control problems, each of the three conditions is shown to hold for all but a null set of cases. Furthermore, we establish a Lipschitz condition for two of these assumptions; under specific circumstances, we explicitly find the associated Lipschitz constants. A detailed numerical investigation using the D-MOPRH control optimization algorithm is presented for a specific family of systems which meet the conditions for possessing trap free control landscapes. The results obtained confirm the trap free nature of the landscapes of such systems.
description: 6 Figures
Discriminating early- and late-stage cancers using multiple kernel learning on gene sets
Creators: name: Arezou Rahimi
name: Gonen, Mehmet
Publisher: name: F1000 Research Limited
Year: 2019

description: Motivation: Identifying molecular mechanisms that drive cancers from early to late stages is highly important to develop new preventive and therapeutic strategies. Standard machine learning algorithms could be used to discriminate early- and late-stage cancers from each other using their genomic characterizations. Even though these algorithms would get satisfactory predictive performance, their knowledge extraction capability would be quite restricted due to highly correlated nature of genomic data. That is why we need algorithms that can also extract relevant information about these biological mechanisms using our prior knowledge about pathways/gene sets.

Results: In this study, we addressed the problem of separating early- and late-stage cancers from each other using their gene expression profiles. We proposed to use a multiple kernel learning formulation that makes use of pathways/gene sets (i) to obtain satisfactory/improved predictive performance and (ii) to identify biological mechanisms that might have an effect in cancer progression. We extensively compared our proposed multiple kernel learning on gene sets algorithm against two standard machine learning algorithms, namely, random forests and support vector machines, on 20 diseases from TCGA cohorts for two different sets of experiments. Our method obtained statistically significantly better or comparable predictive performance on most of the datasets using significantly fewer gene expression features. We also showed that our algorithm was able to extract meaningful and disease-specific information that gives clues about the progression mechanism.
Statics and Dynamics of Vortex Liquid Crystals
Creators: name: Reichhardt, C.
name: Reichhardt, C. J. Olson
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Using numerical simulations we examine the static and dynamic properties of the recently proposed vortex liquid crystal state. We confirm the existence of a smectic-A phase in the absence of pinning. Quenched disorder can induce a smectic state even at T=0. When an external drive is applied, a variety of anisotropic dynamical flow states with distinct voltage signatures occur, including elastic depinning in the hard direction and plastic depinning in the easy direction. We discuss the implications of the anisotropic transport for other systems which exhibit depinning phenomena, such as stripes and electron liquid crystals.
description: 4 pages, 4 postscript figures
N-Jettiness Subtractions for $gg\to H$ at Subleading Power
Creators: name: Moult, Ian
name: Rothen, Lorena
name: Stewart, Iain W.
name: Tackmann, Frank J.
name: Zhu, Hua Xing
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: $N$-jettiness subtractions provide a general approach for performing fully-differential next-to-next-to-leading order (NNLO) calculations. Since they are based on the physical resolution variable $N$-jettiness, $\mathcal{T}_N$, subleading power corrections in $τ=\mathcal{T}_N/Q$, with $Q$ a hard interaction scale, can also be systematically computed. We study the structure of power corrections for $0$-jettiness, $\mathcal{T}_0$, for the $gg\to H$ process. Using the soft-collinear effective theory we analytically compute the leading power corrections $α_s τ\lnτ$ and $α_s^2 τ\ln^3τ$ (finding partial agreement with a previous result in the literature), and perform a detailed numerical study of the power corrections in the $gg$, $gq$, and $q\bar q$ channels. This includes a numerical extraction of the $α_sτ$ and $α_s^2 τ\ln^2τ$ corrections, and a study of the dependence on the $\mathcal{T}_0$ definition. Including such power suppressed logarithms significantly reduces the size of missing power corrections, and hence improves the numerical efficiency of the subtraction method. Having a more detailed understanding of the power corrections for both $q\bar q$ and $gg$ initiated processes also provides insight into their universality, and hence their behavior in more complicated processes where they have not yet been analytically calculated.
description: 16 pages, 12 figures
Uplifting the Iwasawa
Creators: name: Franzen, Anne
name: Kaura, Payal
name: Misra, Aalok
name: Ray, Rajyavardhan
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Iwasawa manifold is uplifted to seven-folds of either G_2 holonomy or SU(3) structure, explicit new metrics for the same having been constructed in this work. We uplift the Iwasawa manifold to a G_2 manifold through "size" deformation (of the Iwasawa metric), via Hitchin's Flow equations, showing also the impossibility of the uplift for "shape" and "size" deformations (of the Iwasawa metric). Using results of [1], we also uplift the Iwasawa manifold to a 7-fold with SU(3) structure through "size" and "shape" deformations via generalisation of Hitchin's Flow equations. For seven-folds with SU(3)-structure, the result could be interpreted as M5-branes wrapping two-cycles embedded in the seven-fold - a warped product of either a special hermitian six-fold or a balanced six-fold with the unit interval. There can be no uplift to seven-folds of SU(3) structure involving non-trivial "size" and "shape" deformations (of the Iwasawa metric) retaining the "standard complex structure" - the uplift generically makes one move in the space of almost complex structures such that one is neither at the standard complex structure point nor at the "edge". Using the results of [2] we show that given two "shape deformation" functions, and the dilaton, one can construct a Riemann surface obtained via Weierstrass representation for the conformal immersion of a surface in R^l, for a suitable l, with the condition of having conformal immersion being a quadric in CP^{l-1}.
description: 27 pages, LaTeX; v4: (shorter [on referee's suggestion] version of this eprint) to appear in Fortsch. Phys. 2005
The Pittsburgh Jewish Newspaper Project: Supporting the Needs of an External Community
Creators: name: Michalek, Gabrielle
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: Library and Information Studies
subject: FOS: Media and communications

description: Learn more about a collaborative project to digitize periodicals published in Pittsburgh’s Jewish community from 1895-2010. Content is made visible by allowing major search engines to crawl the collections. Ancestry.com and major harvesting services also link to the collection, which is heavily used by genealogists and researchers interested in Jewish history in the Pittsburgh community. The session will cover Carnegie Mellon’s contribution to a project that serves a community of users outside of its own and the challenges and opportunities encountered.
Rencontre dans la diversité. 4e Congrès de l'Association européenne des sciences de l'occupation (OSE), à Hildesheim, Allemagne, du 8 au 9 septembre 2017
Creators: name: Cailleret, Marine
name: Bertrand, Romain
Publisher: name: Communauté pour l’Avancement de la Recherche Appliquée Francophone en Ergothérapie (CARAFE)
Year: 2018

description: Sans résumé.
title: Galdós’s Tristana and Giuseppe Verdi
Creators: name: Franz, Thomas R.
Publisher: name: Utah State University
Year: 2006

description: Galdós’s musicianship, interest in music, early journalistic work as a reviewer of operas, familiarity with composers’ lives, and use of musical motifs in his novels are all well known. Franz has shown how the plotting and characterization of Doña Perfecta echo those of Rossini’s Il barbiere di Siviglia (“Doña Perfecta” 127–33). Chamberlin has detailed the parallel structure of Fortunata y Jacinta (1886–87) and Beethoven’s Symphony no. 3 (Galdós and Beethoven) and related details of the same novel to the life and work of Rossini (“Echoes” 91–103), continuing a line of investigation initiated years earlier by Nimetz (189–90). This same critic has more recently identified a series of nicknames appearing in Galdós’s novels—Fortunata y Jacinta, Lo prohibido, Casandra—that proceed from nineteenth- century operas, particularly ones by Giuseppe Verdi and Gioacchino Rossini (“Cultural Nicknames” 16–18).
Solar cycle induced variations in GONG p-mode frequencies and splittings
Creators: name: Jain, Kiran
name: Tripathy, S. C.
name: Bhatnagar, A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have analysed the recently available GONG p-mode frequencies and splitting coefficients for a period of three and half years, including the rapidly rising phase of solar cycle 23. The analysis of mean frequency shift with different activity indices shows that the shift is equally correlated with both magnetic and radiative indices. During the onset of the new cycle 23, we notice that the change in $b_4$ splitting coefficient is more prominent than the change in $b_2$. We have estimated the solar rotation rate with varying depth and latitude. In the equatorial region, the rotation first increases with depth and then decreases, while an opposite behaviour is seen in the polar region. We also find a small but significant temporal variation in the rotation rate at high latitudes.
description: Uses aastex, To appear in Astrophysical Journal, October 10, 2000 issue
Pion-pair formation and the pion dispersion relation in a hot pion gas
Creators: name: Alm, T.
name: Chanfray, G.
name: Schuck, P.
name: Welke, G.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: Atomic Physics (physics.atom-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The possibility of pion--pair formation in a hot pion gas, based on the bosonic gap equation, is pointed out and discussed in detail. The critical temperature for condensation of pion pairs (Evans--Rashid transition) is determined as a function of the pion density. As for fermions, this phase transition is signaled by the appearance of a pole in the two--particle propagator. In bose systems there exists a second, lower critical temperature, associated with the appearance of the single--particle condensate. Between the two critical temperatures the pion dispersion relation changes from the usual quasiparticle dispersion to a Bogoliubov--like dispersion relation at low momenta. This generalizes the non-relativistic result for an attractive bose gas by Evans et al. Possible consequences for the inclusive pion spectra measured in heavy--ion collisions at ultra--relativistic energies are discussed.
description: 16 pages revtex, 7 Postscript figures
Digital Preservation DPS base requirements
Creators: name: Stokes, Paul
name: Colbron, Karen
Publisher: name: Zenodo
Year: 2024
Subjects: Building trust and transparency into research and curation techniques, costs, and workflows
Dynamic Purchasing system
Jisc
Digital Preservation Procurement
Digital Preservation system requirements

description: Jisc are considering implementing a Dynamic Purchasing System (DPS) for members to use when procuring a Digital Preservation System. This poster briefly covers what a DPS is and the process we’re undergoing to draft and validate a base set of common requirements for Digital Preservation systems requirements with vendors and with potential users of the DPS.
3,5-difluoro-2,4,6-trinitroanisole: promising melt-cast insensitive explosives instead of TNT
Creators: name: Jing, Suming
name: Jiang, Zhenming
name: Jiao, Qingjie
name: Li, Zhihua
name: Liu, Yucun
name: Yang, Lei
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: Finding new melt-cast explosives with desired properties to replace 2,4,6-trinitrotoluene (TNT) has been intensely-pursued in recent decades. However, the contradiction among high energy, low mechanical sensitivity and low-melting makes the innovation of insensitive high-energy-density melt-cast explosives an enormous challenge, so the melt-cast explosives of comprehensive properties better than TNT has not been found. Here, we show a new way to design melt-cast insensitive energetic compound by the introduction of C-F into nitroaromatics. This as-synthesized energetic compound exhibits excellent performance with a high-measured density of 1.81 g cm−3, high thermal decomposition temperature (>300°C), high detonation velocity of 8.54 km s−1, appropriate melting point (82°C) and low viscosity(6200 mpa·S), and extremely low mechanical sensitivities (impact sensitivity, >60 J, and friction sensitivity, >360 N), superior to those of current melt-cast explosives, such as TNT and 2,4-dinitroanisole (DNAN).
SHG microscopic observations of polar state in Li-doped KTaO3 under electric field
Creators: name: Yokota, Hiroko
name: Ohyama, Taeko
name: Uesu, Yoshiaki
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Incipient ferroelectric KTaO3 with off-center Li impurity of the critical concentration of 2.8 mol% was investigated in order to clarify the dipole glass state under electric field. Using optical second-harmonic generation (SHG) microscope, we observed a marked history dependence of SHG intensity through zero-field cooling (ZFC), zero-field heating (ZFH), field heating after ZFC (FH/ZFC) and FH after field cooling (FH/FC). These show different paths with respect to temperature: In the ZFC/ZFH process, weak SHG was observed at low temperature, while in the FH/ZFC process, relatively high SHG appears in a limited temperature range below TF depending on the field strength, and in the FC and FH/FC processes, the SHG exhibits ferroelectric-like temperature dependence: it appears at the freezing temperature of 50K, increases with decreasing temperature and has a tendency of saturation. These experimental results strongly suggest that dipole glass state or polar nano-clusters which gradually freezes with decreasing temperature is transformed into semi-macroscopic polar state under the electric field. However at sufficiently low temperature, the freezing is so strong that the electric field cannot enlarge the polar clusters. These experimental results show that the polar nano-cluster model similar to relaxors would be more relevant in KTaO3 doped with the critical concentration of Li. Further experiments on the anisotropy of SHG determine that the average symmetry of the field-induced polar phase is tetragonal 4mm or 4, which is also confirmed by the X-ray diffraction measurement.
description: 26 pages, 8 figures, 1 table
Déprivation occupationnelle et santé mentale. Colloque du Réseau occupation humaine et santé (OHS), à Lausanne, Suisse, le 21 juin 2018
Creators: name: Luthringer Kauffmann, Noémie
Publisher: name: Communauté pour l’Avancement de la Recherche Appliquée Francophone en Ergothérapie (CARAFE)
Year: 2018

description: Sans résumé.
Direct evidence for the Maldacena conjecture for N=(8,8) super Yang-Mills theory in 1+1 dimensions
Creators: name: Hiller, J. R.
name: Pinsky, S. S.
name: Salwen, N.
name: Trittmann, U.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We solve N=(8,8) super Yang-Mills theory in 1+1 dimensions at strong coupling to directly confirm the predictions of supergravity at weak coupling. We do our calculations in the large-N_c approximation using Supersymmetric Discrete Light-Cone Quantization with up to 3*10^{12} basis states. We calculate the stress-energy correlator as a function of the separation r and find that at intermediate values of r the correlator behaves as r^{-5} to within errors as predicted by weak-coupling supergravity. We also present an extension to significantly higher resolution of our earlier results for the same correlator in the N=(2,2) theory and see that in this theory the correlator has very different behavior at intermediate values of r.
description: 12 pp., 6 figures, LaTeX
POISONING PROCESS IN THE BLOOD AND LIVER OF RATS POISONED BY SPECTACLED SNAKE VENOM
Creators: name: Shirinova, Inobat
Publisher: name: Zenodo
Year: 2024

description: It is known that catacin has high fighting properities. Previous experiments have shown that antihypoxants such as gutimine and sodium oxybutyrate give positive results after both prophylaxis and snake venom poisoning. The direct effects of catacin on tissue when poisoned by snake venom re currently poorly understood. Membrane phospholipids, which can liquefy the body, play an important role in the exchange of membrane properties. In our following studies, we aimed to monitor the results of various indicators of phospholipids in rat blood and liver catacin use and non-use after intoxitation with Central Asian spectacle snake venom.
title: ÐÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿Ð»Ð°ÑÑÐ¸Ð½ÑÐ°ÑÐ¾-ÑÐ¾ÑÐ¾ÑÐ½Ð¾Ð³Ð¾ ÐºÐ¾Ð¼Ð¿ÑÐµÑÑÐ¾ÑÐ°-Ð²Ð°ÐºÑÑÐ¼Ð½Ð¾Ð³Ð¾ Ð½Ð°ÑÐ¾ÑÐ° Ñ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸ÐµÐ¼ Ð²ÑÐ°ÑÑÐ²Ð°Ð½Ð¸Ñ Ð¾Ñ 105 Ð¿Ð° Ð´Ð¾ 104Ð¿Ð° Ð¸ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÑÑ 0.75Ð¼3/c
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Design of a plate and rotary compressor-vacuum pump with a suction pressure from 105 pa to 104pa and capacity of 0.75m3 / s
Creators: name: ÐÐ°ÑÐ¸Ð¾Ð½Ð¾Ð², Ð®ÑÐ¸Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: ÐÐ¾Ð¼Ð¿ÑÐµÑÑÐ¾ÑÑ
ÐÐ°ÐºÑÑÐ¼-Ð½Ð°ÑÐ¾ÑÑ

description: Ð¡ÑÑÐ½Ð¾ÑÑÑÑ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿Ð»Ð°ÑÑÐ¸Ð½ÑÐ°ÑÐ¾-ÑÐ¾ÑÐ¾ÑÐ½ÑÐ¹ ÐºÐ¾Ð¼Ð¿ÑÐµÑÑÐ¾Ñ-Ð²Ð°ÐºÑÑÐ¼Ð½ÑÐ¹ Ð½Ð°ÑÐ¾Ñ Ñ Ð·Ð°Ð´Ð°Ð½Ð½ÑÐ¼ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸ÐµÐ¼ Ð²ÑÐ°ÑÑÐ²Ð°Ð½Ð¸Ñ Ð¾Ñ 105Ð¿Ð° Ð´Ð¾ 104 Ð¿Ð° Ð¸ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÑÑ 0.75Ð¼3/Ñ.
description: The essence of this operation is the design of the plate-rotary compressor-vacuum pump with the preset suction pressure from 105pa to 104pa and capacity of 0.75m3/s.
title: Transforming Wuthering Heights and La Madre Naturaleza into Abel Sánchez: Creating the Postmodern out of Its Past
Creators: name: Franz, Thomas R.
Publisher: name: Utah State University
Year: 2006

description: In chapter 17 of La Madre Naturaleza (1887), Gabriel Pardo de la Lage rummages through the library of Los Pazos [as the priest Julián Alvarez had done in Los Pazos de Ulloa (1886)] and discovers copies of Andrews’s Clarissa Harlow and Richardson’s Pamela (1856), exemplars of the English sentimental novel. Somewhat later on, the reader begins to note provocative similarities between La Madre and Emily Brontë’s proto-Gothic, Romantic masterpiece, Wuthering Heights (1847). There are headstrong sets of lovers, a strong hint of the demonic, the possibility of happiness through marriage to a more civilized man, a strong suggestion of the violation of the incest taboo, envy and revenge, the presence of multiple generations, and a narrative interrupted by massive flashbacks. Many of these characteristics also describe Unamuno’s most hair-raising novel, Abel Sánchez (1917), which has been related to the Gothic genre so popular in nineteenth-century Britain (Franz, “Abel Sánchez” passim). The present article is a study of the process by which Unamuno created large parts of Abel Sánchez out of Wuthering Heights and La Madre Naturaleza. Its purpose is to show how Abel Sánchez, while indebted to Pardo Bazán’s use in La Madre Natrualeza of material from Wuthering Heights, appropriates much more from the disconnected unconventionalities of Brontë’s novel and thus is able to approach the creation of a narrative that today we might term postmodern.
Anisotropy in Quasi-Static Magnetohydrodynamic Turbulence
Creators: name: Verma, Mahendra K.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In this review we summarise the current status of the quasi-static magnetohydrodynamic turbulence. The energy spectrum is steeper than Kolmogorov's $k^{-5/3}$ spectrum due to the decrease of the kinetic energy flux with wavenumber $k$ as a result of Joule dissipation. The spectral index decreases with the increase of interaction parameter. The flow is quasi two-dimensional with strong ${\bf U}_\perp$ at small $k$ and weak $U_\parallel$ at large $k$, where ${\bf U}_\perp$ and $U_\parallel$ are the perpendicular and parallel components of velocity relative to the external magnetic field. For small $k$, the energy flux of ${\bf U}_\perp$ is negative, but for large $k$, the energy flux of $U_\parallel$ is positive. Pressure mediates the energy transfer from ${\bf U}_\perp$ to $U_\parallel$.
description: Review article
Recent results of search for solar axions using resonant absorption by $^{83}$Kr nuclei
Creators: name: Derbin, A. V.
name: Drachnev, I. S.
name: Gangapshev, A. M.
name: Gavrilyuk, Yu. M.
name: Kazalov, V. V.
name: Kobychev, V. V.
name: Kuzminov, V. V.
name: Muratova, V. N.
name: Panasenko, S. I.
name: Ratkevich, S. S.
name: Tekueva, D. A.
name: Unzhakov, E. V.
name: Yakimenko, S. P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A search for resonant absorption of the solar axion by $^{83}\rm{Kr}$ nuclei was performed using the proportional counter installed inside the low-background setup at the Baksan Neutrino Observatory. The obtained model independent upper limit on the combination of isoscalar and isovector axion-nucleon couplings $|g_3-g_0|\leq 8.4\times 10^{-7}$ allowed us to set the new upper limit on the hadronic axion mass of $m_{A}\leq 65$ eV (95\% C.L.) with the generally accepted values $S$=0.5 and $z$=0.56.
description: 4 pages, 2 figures, Proceedings of the 13th Patras Workshop on Axions, WIMPs and WISP, May 15th to 19th 2017, Thessaloniki, Greece
The Formation of Stellar Clusters: Gaussian Initial Conditions II
Creators: name: Klessen, Ralf
name: Burkert, Andreas
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using hydrodynamic simulations we investigate the time evolution and fragmentation of regions within molecular clouds which have lost their turbulent support leading to gravitational contraction. The initial density distributions are described by random Gaussian fluctuations with varying slopes x of the power spectrum P(k) ~ k^-x, covering the range from flat (x=0) to very steep spectra (x=3). We consider molecular cloud volumes containing different masses relative to the average Jeans mass M_J, from 1 M_J to 222 M_J. This parameter study extends the detailed analysis of systems with initially P(k) ~ k^-2 and mass 222 M_J presented by Klessen & Burkert (2000). The dynamical evolution of the simulated molecular cloud regions is insensitive to the slope of the initial density fluctuation spectrum. The system evolves into a complicated network of intersecting filaments and collapsing clumps leading to the formation of a compact cluster of accreting and interacting embedded protostellar cores. The cluster builds up as bound entity, but dissolves later due to collisional effects. In all simulations, the mass spectrum of collapsed cores is very broad, has approximately log-normal shape and peaks roughly at the average Jeans mass. This supports the hypothesis that the average Jeans mass is the main parameter determining the peak in the stellar spectrum, and suggests that the interplay between self-gravity on the one side and thermal and turbulent pressure on the other side is the dominant process that regulates the formation of stellar clusters.
description: 29 pages including 6 resolution reduced figures, minor revisions, scheduled for publication in ApJ, volume 549, March 1. 2001 (full resolution version available at http://www.ucolick.org/~ralf/rsk-publications.html)
Discrete logistic branching populations and the canonical diffusion of adaptive dynamics
Creators: name: Champagnat, Nicolas
name: Lambert, Amaury
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: Logistic branching process
subject: population dynamics
subject: density-dependence
subject: competition
subject: fixation probability
subject: genetic drift
subject: weak selection
subject: adaptive dynamics
subject: invasion fitness
subject: timescale separation
subject: trait substitution sequence
subject: diffusion approximation
subject: harmonic equations
subject: convergence of measure-valued processes
subject: 60J80
subject: 60J25
subject: 60J70
subject: 60J75
subject: 60J85
subject: 60K35
subject: 92D10
subject: 92D15
subject: 92D25
subject: 92D40

description: The biological theory of adaptive dynamics proposes a description of the long-time evolution of an asexual population, based on the assumptions of large population, rare mutations and small mutation steps, that lead to a deterministic ODE, called `canonical equation of adaptive dynamics'. However, in order to include the effect of genetic drift in this description, we have to apply a limit of weak selection to a finite stochastically fluctuating discrete population subject to competition in the logistic branching fashion. We start with the study of the particular case of two competing subpopulations (resident and mutant) and seek explicit first-order formulae for the probability of fixation of the mutant, also interpreted as the mutant's fitness, in the vicinity of neutrality. In particular, the first-order term is a linear combination of products of functions of the initial mutant frequency times functions of the initial total population size, called invasibility coefficients (fertility, defence, aggressiveness, isolation, survival). Then we apply a limit of rare mutations to a population subject to mutation, birth and competition where the number of coexisting types may fluctuate, while keeping the population size finite. This leads to a jump process, the so-called `trait substitution sequence', where evolution proceeds by successive invasions and fixations of mutant types. Finally, we apply a limit of weak selection (small mutation steps) to this jump process, that leads to a diffusion process of evolution, called `canonical diffusion of adaptive dynamics', in which genetic drift is combined with directional selection driven by the fitness gradient.
Engaging researchers to document and share research activities at Ghent University
Creators: name: Standaert, Laura
Publisher: name: Zenodo
Year: 2024
Subjects: Building trust and transparency into research and curation techniques, costs, and workflows
Transparency as a means of demonstrating research integrity
Skills needed for researchers and data stewards to make their practices transparent
Documentation
ELN
Policy
Compliance

description: Encouraging researchers to document their research activities is crucial. At Ghent University (Belgium) we have conducted during the past 2 years a project to engage researchers of multiple disciplines to outline the current requirements they have and to drive institutionally supported solutions. We describe the methodology of this project and outline significant tasks and milestones.
Le 11e Congrès mondial sur l'accident vasculaire cérébral à Montréal, Canada, du 17 au 20 octobre 2018
Creators: name: Deblock-Bellamy, Anne
name: Pellerin, Marc-André
Publisher: name: Communauté pour l’Avancement de la Recherche Appliquée Francophone en Ergothérapie (CARAFE)
Year: 2019

description: Sans résumé.
Demonstration of a quantized microwave quadrupole insulator with topologically protected corner states
Creators: name: Peterson, Christopher W.
name: Benalcazar, Wladimir A.
name: Hughes, Taylor L.
name: Bahl, Gaurav
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The modern theory of electric polarization in crystals associates the dipole moment of an insulator with a Berry phase of its electronic ground state [1, 2]. This concept constituted a breakthrough that not only solved the long-standing puzzle of how to calculate dipole moments in crystals, but also lies at the core of the theory of topological band structures in insulators and superconductors, including the quantum anomalous Hall insulator [3, 4] and the quantum spin Hall insulator [5-7], as well as quantized adiabatic pumping processes [8-10]. A recent theoretical proposal extended the Berry phase framework to account for higher electric multipole moments [11], revealing the existence of topological phases that have not previously been observed. Here we demonstrate the first member of this predicted class -a quantized quadrupole topological insulator- experimentally produced using a GHz-frequency reconfigurable microwave circuit. We confirm the non-trivial topological phase through both spectroscopic measurements, as well as with the identification of corner states that are manifested as a result of the bulk topology. We additionally test a critical prediction that these corner states are protected by the topology of the bulk, and not due to surface artifacts, by deforming the edge between the topological and trivial regimes. Our results provide conclusive evidence of a unique form of robustness which has never previously been observed.
description: Main Text: 14 pages, 4 figures. Supplementary Information: 6 pages, 3 figures