cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Antiferromagnetic Excitonic Insulator State in Sr3Ir2O7
Creators: name: Mazzone, D. G.
name: Shen, Y.
name: Suwa, H.
name: Fabbris, G.
name: Yang, J.
name: Zhang, S-S.
name: Miao, H.
name: Sears, J.
name: Jia, Ke
name: Shi, Y. G.
name: Upton, M. H.
name: Casa, D. M.
name: Liu, X.
name: Liu, J.
name: Batista, C. D.
name: Dean, M. P. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Excitonic insulators are usually considered to form via the condensation of a soft charge mode of bound electron-hole pairs. This, however, presumes that the soft exciton is of spin-singlet character. Early theoretical considerations have also predicted a very distinct scenario, in which the condensation of magnetic excitons results in an antiferromagnetic excitonic insulator state. Here we report resonant inelastic x-ray scattering (RIXS) measurements of Sr3Ir2O7. By isolating the longitudinal component of the spectra, we identify a magnetic mode that is well-defined at the magnetic and structural Brillouin zone centers, but which merges with the electronic continuum in between these high-symmetry points and which decays upon heating concurrent with a decrease in the material's resistivity. We show that a bilayer Hubbard model, in which electron-hole pairs are bound by exchange interactions, consistently explains all the electronic and magnetic properties of Sr3Ir2O7 indicating that this material is a realization of the long-predicted antiferromagnetic excitonic insulators phase.
description: accepted in Nature Communications; 6 pages main materials
Thermal Duality and Hagedorn Transition from p-adic Strings
Creators: name: Biswas, Tirthabir
name: Cembranos, Jose A. R.
name: Kapusta, Joseph I.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We develop the finite temperature theory of p-adic string models. We find that the thermal properties of these non-local field theories can be interpreted either as contributions of standard thermal modes with energies proportional to the temperature, or inverse thermal modes with energies proportional to the inverse of the temperature, leading to a "thermal duality" at leading order (genus one) analogous to the well known T-duality of string theory. The p-adic strings also recover the asymptotic limits (high and low temperature) for arbitrary genus that purely stringy calculations have yielded. We also discuss our findings surrounding the nature of the Hagedorn transition.
description: 4 pages and 4 figures
The Business School archaeologist s Friday
Creators: name: Baxter, Ian
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Nuclear Spin-Depleted, Isotopically Enriched 70Ge/28Si70Ge Quantum Wells
Creators: name: Moutanabbir, O.
name: Assali, S.
name: Attiaoui, A.
name: Daligou, G.
name: Daoust, P.
name: Del Vecchio, P.
name: Koelling, S.
name: Luo, L.
name: Rotaru, N.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The p-symmetry of the hole wavefunction is associated with a weaker hyperfine interaction as compared to electrons, thus making hole spin qubits attractive candidates to implement long coherence quantum processors. However, recent studies demonstrated that hole qubits in planar germanium (Ge) heterostructures are still very sensitive to nuclear spin bath. These observations highlight the need to develop nuclear spin-free Ge qubits to suppress this decoherence channel and evaluate its impact. With this perspective, this work demonstrates the epitaxial growth of $^\text{73}$Ge-depleted isotopically enriched $^\text{70}$Ge/SiGe quantum wells. The growth was achieved by reduced pressure chemical vapor deposition using isotopically purified monogermane $^\text{70}$GeH$_\text{4}$ and monosilane $^\text{28}$SiH$_\text{4}$ with an isotopic purity higher than 99.9 $\%$ and 99.99 $\%$, respectively. The quantum wells consist of a series of $^\text{70}$Ge/SiGe heterostructures grown on Si wafers using a Ge virtual substrate and a graded SiGe buffer layer. The isotopic purity is investigated using atom probe tomography following an analytical procedure addressing the discrepancies in the isotopic content caused by the overlap of isotope peaks in mass spectra. The nuclear spin background in the quantum wells was found to be sensitive to the growth conditions. The lowest concentration of nuclear spin-full isotopes $^\text{73}$Ge and $^\text{29}$Si in the heterostructure was established at 0.01 $\%$ in the Ge quantum well and SiGe barriers. The measured average distance between nuclear spins reaches 3-4 nm in $^\text{70}$Ge/$^\text{28}$Si$^\text{70}$Ge, which is an order of magnitude larger than in natural Ge/SiGe heterostructures.
description: 9 pages, 4 figures
Day of Archaeology 2015 | Catching up with the past
Creators: name: Carter, Spencer
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Modeling non-Gaussian 1/f Noise by the Stochastic Differential Equations
Creators: name: Kaulakys, B.
name: Alaburda, M.
name: Ruseckas, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We consider stochastic model based on the linear stochastic differential equation with the linear relaxation and with the diffusion-like fluctuations of the relaxation rate. The model generates monofractal signals with the non-Gaussian power-law distributions and 1/f^b noise.
description: 4 pages, 3 figures
Brenna Geraghty - Virginia Museum of Natural History
Creators: name: Moore, Elizabeth
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Louise Davies: Not a typical archaeologist
Creators: name: White, Steve
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Using Cardinality Matching to Design Balanced and Representative Samples for Observational Studies
Creators: name: Niknam, Bijan A.
name: Zubizarreta, Jose R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Cardinality matching is a computational method for finding the largest possible number of matched pairs of exposed and unexposed individuals from an observational dataset, with specified patterns of baseline characteristics that represent a target population for analysis. This article explains the process of cardinality matching and how it simultaneously addresses the concerns of balance, sample size, and representativeness of matched samples in observational studies.
A day in the life of an archaeologist: Sharing clay pottery
Creators: name: Adkins, Sean
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Bruhat-Tits theory from Berkovich's point of view. II. Satake compactifications
Creators: name: Remy, Bertrand
name: Thuillier, Amaury
name: Werner, Annette
Publisher: name: arXiv
Year: 2009
Subjects: subject: Group Theory (math.GR)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 20E42, 51E24, 14L15, 14G22

description: In our previous paper "Bruhat-Tits theory from Berkovich's point of view. I ? Realizations and compactifications of buildings", we investigated realizations of the Bruhat-Tits building B(G,k) of a connected and reductive linear algebraic group G over a non-Archimedean field k in the framework of Berkovich's non-Archimedean analytic geometry, and we studied in detail the compactifications of the building which arise from this point of view. In this paper, we give a representation theoretic flavor to these compactifications, following Satake's original constructions for Riemannian symmetric spaces. We first prove that Berkovich compactifications of a building coincide with the compactifications previously introduced by the third named author and obtained by a gluing procedure. Then we show how to recover them from an absolutely irreducible linear representation of G by embedding B(G,k) in the building of the general linear group of the representation space, compactified in a suitable way. Existence of such an embedding is a special case of Landvogt's general results on functoriality of buildings, but we also give another natural construction of an equivariant embedding, which relies decisively on Berkovich geometry.
description: 37 pages
One-Dimensional Relativistic Self-Gravitating Systems
Creators: name: Mann, Robert B.
Publisher: name: arXiv
Year: 2025
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: One of the oldest problems in physics is that of calculating the motion of $N$ particles under a specified mutual force: the $N$-body problem. Much is known about this problem if the specified force is non-relativistic gravity, and considerable progress has been made by considering the problem in one spatial dimension. Here, I review what is known about the relativistic gravitational $N$-body problem. Reduction to one spatial dimension has the feature of the absence of gravitational radiation, thereby allowing for a clear comparison between the physics of one-dimensional relativistic and non-relativistic self-gravitating systems. After describing how to obtain a relativistic theory of gravity coupled to $N$ point particles, I discuss in turn the two-body, three-body, four-body, and $N$-body problems. Quite general exact solutions can be obtained for the two-body problem, unlike the situation in general relativity in three spatial dimensions for which only highly specified solutions exist. The three-body problem exhibits mild forms of chaos, and provides one of the first theoretical settings in which relativistic chaos can be studied. For $N\geq 4$, other interesting features emerge. Relativistic self-gravitating systems have a number of interesting problems awaiting further investigation, providing us with a new frontier for exploring relativistic many-body systems.
description: 85 Pages, invited paper for special issue of Entropy on Statistical Mechanics of Self-gravitating Systems (ed. B. Miller)
Filming Archaeologists
Creators: name: Patton, Angie
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Length scale dependent diffusion in the Anderson model at high temperatures
Creators: name: Steinigeweg, Robin
name: Gemmer, Jochen
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate a single particle on a 3-dimensional, cubic lattice with a random on-site potential (3D Anderson model). We concretely address the question whether or not the dynamics of the particle is in full accord with the diffusion equation. Our approach is based on the time-convolutionless (TCL) projection operator technique and allows for a detailed investigation of this question at high temperatures. It turns out that diffusive dynamics is to be expected for a rather short range of wavelengths, even if the amount of disorder is tuned to maximize this range. Our results are partially counterchecked by the numerical solution of the full time-dependent Schroedinger equation.
description: 6 pages, 4 figures, accepted for publication in Physica E
Differentiating Geographic Movement Described in Text Documents
Creators: name: Pezanowski, Scott
name: MacEachren, Alan M.
name: Mitra, Prasenjit
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences
subject: J.0; I.7.0; H.3.3

description: Understanding movement described in text documents is important since text descriptions of movement contain a wealth of geographic and contextual information about the movement of people, wildlife, goods, and much more. Our research makes several contributions to improve our understanding of movement descriptions in text. First, we show how interpreting geographic movement described in text is challenging because of general spatial terms, linguistic constructions that make the thing(s) moving unclear, and many types of temporal references and groupings, among others. Next, as a step to overcome these challenges, we report on an experiment with human subjects through which we identify multiple important characteristics of movement descriptions (found in text) that humans use to differentiate one movement description from another. Based on our empirical results, we provide recommendations for computational analysis using movement described in text documents. Our findings contribute towards an improved understanding of the important characteristics of the underused information about geographic movement that is in the form of text descriptions.
Researching the Human Remains at Hampshire Cultural Trust
Creators: name: Hampshire Cultural Trust
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Lake Restoration Guidance Manual Technical Supplement 1 Monitoring 1988
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1988

description: Monitoring represents an initial effort, on the part of SAIC and its consultants, to prepare a compilation of lake monitoring techniques. Restoration goals, objectives, techniques, and monitoring strategies are presented for lakes impacted by eutrophication/sedimentation, acid deposition, and/or toxic contamination. The Technical Supplement is the first in a series, intended to disseminate technical guidance to State lake managers. Input from the reviewers of this supplement is encouraged.
On the Progenitor of the Type II-Plateau SN 2008cn in NGC 4603
Creators: name: Elias-Rosa, N.
name: Van Dyk, S. D.
name: Li, W.
name: Morrell, N.
name: Gonzalez, S.
name: Hamuy, M.
name: Filippenko, A. V.
name: Cuillandre, J. -C.
name: Foley, R. J.
name: Smith, N.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Through comparison of pre- and post-explosion images obtained with the Wide Field and Planetary Camera 2 onboard the Hubble Space Telescope, we have isolated a supergiant star prior to explosion at nearly the same position as the high-luminosity SN II-P 2008cn. We provide evidence that this supergiant may well be the progenitor of the SN, although this identification is not entirely unambiguous due mainly to the distance to the host galaxy (NGC 4603), 33.3 Mpc. The progenitor candidate has a more yellow color than generally would be expected and, if a single star, would require that it exploded during a "blue loop" evolutionary phase. Nonetheless, we estimate an initial mass of Mini = 15 +/- 2 Msun for this star, which is within the expected mass range for SN II-P progenitors. The yellower color could also arise from the blend of two or more stars, such as a red supergiant hidden by a brighter, blue supergiant; or a massive, interacting binary system. Finally, if the yellow supergiant is not the progenitor, or is not a stellar blend or binary containing the progenitor, then we constrain any undetected progenitor star to be a red supergiant with Mini < 11 Msun, considering a physically more realistic scenario of explosion at the model endpoint luminosity for a rotating star. (ABRIDGED)
description: 19 pages, 7 figures. Accepted for publication in ApJ (Oct. 12, 2009)
Protostellar Jet and Outflow in the Collapsing Cloud Core
Creators: name: Machida, Masahiro N.
name: Inutsuka, Shu-ichiro
name: Matsumoto, Tomoaki
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the driving mechanism of outflows and jets in star formation process using resistive MHD nested grid simulations. We found two distinct flows in the collapsing cloud core: Low-velocity outflows (sim 5 km/s) with a wide opening angle, driven from the first adiabatic core, and high-velocity jets (sim 50 km/s) with good collimation, driven from the protostar. High-velocity jets are enclosed by low-velocity outflow. The difference in the degree of collimation between the two flows is caused by the strength of the magnetic field and configuration of the magnetic field lines. The magnetic field around an adiabatic core is strong and has an hourglass configuration. Therefore, the low-velocity outflow from the adiabatic core are driven mainly by the magnetocentrifugal mechanism and guided by the hourglass-like field lines. In contrast, the magnetic field around the protostar is weak and has a straight configuration owing to Ohmic dissipation in the high-density gas region. Therefore, high-velocity jet from the protostar are driven mainly by the magnetic pressure gradient force and guided by straight field lines. Differing depth of the gravitational potential between the adiabatic core and the protostar cause the difference of the flow speed. Low-velocity outflows correspond to the observed molecular outflows, while high-velocity jets correspond to the observed optical jets. We suggest that the protostellar outflow and the jet are driven by different cores (the first adiabatic core and protostar), rather than that the outflow being entrained by the jet.
description: To appear in the proceedings of the "Protostellar Jets in Context" conference held on the island of Rhodes, Greece (7-12 July 2008)
CP-violating axion interactions II: axions as Dark Matter
Creators: name: Plakkot, Vaisakh
name: Dekens, Wouter
name: de Vries, Jordy
name: Shain, Sachin
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Axions provide a solution to the strong CP problem and are excellent dark matter candidates. The presence of additional sources of CP violation, for example to account for the matter/antimatter asymmetry of the universe, can lead to CP-violating interactions between axions and Standard Model fields. In case axions form a coherent dark matter background, this leads to time-oscillating fundamental constants such as the fine-structure constant and particle masses. In this work we compare the sensitivity of various searches for CP-odd axion interactions. These include fifth-force experiments, searches for time-oscillating constants induced by axion dark matter, and direct limits from electric dipole moment experiments. We show that searches for oscillating constants can outperform fifth-force experiments in the regime of small axion masses, but, in general, do not reach the sensitivity of electric dipole moment experiments.
description: v2 corresponds to the published version
Accretion mode versus radio morphology in the LOFAR Deep Fields
Creators: name: Mingo, B.
name: Croston, J. H.
name: Best, P. N.
name: Duncan, K. J.
name: Hardcastle, M. J.
name: Kondapally, R.
name: Prandoni, I.
name: Sabater, J.
name: Shimwell, T. W.
name: Williams, W. L.
name: Baldi, R. D.
name: Bonato, M.
name: Bondi, M.
name: Dabhade, P.
name: Gürkan, G.
name: Ineson, J.
name: Magliocchetti, M.
name: Miley, G.
name: Pierce, J. C. S.
name: Röttgering, H. J. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Radio-loud active galaxies have two accretion modes [radiatively inefficient (RI) and radiatively efficient (RE)], with distinct optical and infrared signatures, and two jet dynamical behaviours, which in arcsec- to arcmin-resolution radio surveys manifest primarily as centre- or edge-brightened structures [Fanaroff-Riley (FR) class I and II]. The nature of the relationship between accretion mode and radio morphology (FR class) has been the subject of long debate. We present a comprehensive investigation of this relationship for a sample of 286 well-resolved radio galaxies in the LOFAR Two-metre Sky Survey Deep Fields (LoTSS-Deep) first data release, for which robust morphological and accretion mode classifications have been made. We find that two-thirds of luminous FRII radio galaxies are RI, and identify no significant differences in the visual appearance or source dynamic range (peak/mean surface brightness) of the RI and RE FRIIs, demonstrating that both RI and RE systems can produce FRII structures. We also find a significant population of low-luminosity FRIIs (predominantly RI), supporting our earlier conclusion that FRII radio structures can be produced at all radio luminosities. We demonstrate that in the luminosity range where both morphologies are present, the probability of producing FRI or FRII radio morphology is directly linked to stellar mass, while across all morphologies and luminosities, RE accretion occurs in systems with high specific star formation rate, presumably because this traces fuel availability. In summary, the relationship between accretion mode and radio morphology is very indirect, with host-galaxy environment controlling these two key parameters in different ways.
description: 22 pages, 17 figures, 7 tables. Accepted for publication in MNRAS. Update with minor changes to match published version
CBD office location patterns : a Vancouver case study
Creators: name: Takahashi, David Leslie
Publisher: name: University of British Columbia
Year: 2011

description: Beginning from the premise that there is a positive correlation between form and process, this study undertakes to uncover patterns of office location in the Vancouver CBD. It is hypothesized that intra-CBD location of offices reflect the functional or interactive relationships that exist between offices. It is possible to infer the existence of linkages by identifying groups or sets of office types which are typically found in close physical proximity. Two main statistical techniques are utilized in the case study: principal components analysis and grouping analysis. The former is used to identify groups of office types which exhibit tendencies to locate in close proximity; the latter to identify sub-areas in the CBD where the clustering of interrelated office types is most conspicuous. The results, although generally consistent with the hypothesis, cannot be regarded as conclusive as direct confirmation of the hypothesis is not possible. The results are, however, encouraging and indicate the need for additional research in this important, but often neglected, area of urban location theory
SUL SENSO DI SÉ. AUTOINGANNI, ILLUSIONI, DISILLUSIONI
Creators: name: Guccinelli, Roberta
Publisher: name: Thaumàzein | Rivista di Filosofia
Year: 2018
Subjects: Living Bodily Self-Sense; Self-Deception; Delusion; Transformation Process.

description: In this paper I would like to describe, even if in broad terms, certain ways, more or less adequate, in which it is possible to experience our own or others’ subjectivity and to acquire from it, in less unhappy cases, a more or less deep knowledge. In particular, I present an ecological model of the Self, which is capable of constituting, in the specific “sense” in which it manifests itself – the self-sense, the sense of our own embodied and embedded being – a fundamental presupposition of an eventual self-knowledge and knowledge of others. The self-sense or sense of our own living bodyness, evident, for example, in feeling good or bad in one’s own body, in the hunger or in the pain, in the attunement (or non-attunement) of the subject involved with its own environment and with other animals (human and non-human), points out, in other words, in the contextual perspective that is outlined, the minimal form that can assume self-knowledge and knowledge of others. In an indirect route, that is to say, turned towards the recognition of possible failures and pathologies of self-knowledge and knowledge of others, of “unhappy knowledge” so to speak, I uncover the role that self-sense and its eventual failure play in the possible conquest or failure of second-order self-knowledge and knowledge of others (social cognition, personal and interpersonal knowledge). Above all, I turn my attention to axiological-affective self-deceptions and to delusions and affective “blindness”, suggesting a possible alternative route, or at least an integrative route, in comparison with standard theories of self-deception and delusion, essentially characterized in a propositional sense. I show in the end the formative and transformative power of art, its expressive and material dimension and its therapeutic relevance or dis-illusory, absolutely antithetical, as such, to anaesthetizing or simply protective (of a would-be equilibrium of one’s own self) and adaptive power that certain self-deceptions can have.
description: Thaumàzein | Rivista di Filosofia, Vol 4 (2016): Vol. 5 (2017) - Volume doppio: Filosofia della nascita
Diagnosing BERT with Retrieval Heuristics
Creators: name: Câmara, Arthur
name: Hauff, Claudia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Retrieval (cs.IR)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences
subject: H.3.3

description: Word embeddings, made widely popular in 2013 with the release of word2vec, have become a mainstay of NLP engineering pipelines. Recently, with the release of BERT, word embeddings have moved from the term-based embedding space to the contextual embedding space -- each term is no longer represented by a single low-dimensional vector but instead each term and \emph{its context} determine the vector weights. BERT's setup and architecture have been shown to be general enough to be applicable to many natural language tasks. Importantly for Information Retrieval (IR), in contrast to prior deep learning solutions to IR problems which required significant tuning of neural net architectures and training regimes, "vanilla BERT" has been shown to outperform existing retrieval algorithms by a wide margin, including on tasks and corpora that have long resisted retrieval effectiveness gains over traditional IR baselines (such as Robust04). In this paper, we employ the recently proposed axiomatic dataset analysis technique -- that is, we create diagnostic datasets that each fulfil a retrieval heuristic (both term matching and semantic-based) -- to explore what BERT is able to learn. In contrast to our expectations, we find BERT, when applied to a recently released large-scale web corpus with ad-hoc topics, to \emph{not} adhere to any of the explored axioms. At the same time, BERT outperforms the traditional query likelihood retrieval model by 40\%. This means that the axiomatic approach to IR (and its extension of diagnostic datasets created for retrieval heuristics) may in its current form not be applicable to large-scale corpora. Additional -- different -- axioms are needed.
description: Published at ECIR 2020
A Viking Friday
Creators: name: Fox, Allison
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Point Processes Modeling of Time Series Exhibiting Power-Law Statistics
Creators: name: Kaulakys, B.
name: Alaburda, M.
name: Gontis, V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: We consider stochastic point processes generating time series exhibiting power laws of spectrum and distribution density (Phys. Rev. E 71, 051105 (2005)) and apply them for modeling the trading activity in the financial markets and for the frequencies of word occurrences in the language.
description: 4 pages, 2 figures
Influence of inlet flow configuration on the flow field within and around a fan-shaped film cooling hole
Creators: name: Porter, JS
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis examines the internal flow dynamics of a typical fan-shaped film cooling hole, as found in gas-turbine aero-engines. As design turbine entry temperatures continue to rise in search of greater engine efficiency, effective cooling is required to maintain turbine components at acceptable temperatures and prevent failure. Literature regarding shaped cooling hole investigations, particularly the influence of inlet conditions on cooling hole flows, is reviewed. A general failure to fully quantify inlet conditions and an inconsistent terminology for describing them is noted. This thesis argues for use of an inlet velocity ratio (IVR) defined as the ratio of the coolant passage velocity to the jet velocity, together with additional parameters required to define the velocity distribution in the coolant supply passage. A unique facility has been designed and constructed to conduct large scale testing of film cooling hole geometries. This facility enables independent control of cooling passage velocity and orientation, coolant flow rate, and external cross-flow. Experimental investigations of the internal flow field for a laterally expanded 50 times scale fan-shaped hole are presented. Hot-wire anemometry and pneumatic measurements reveal the extent of separation at the cooling hole inlet and its variation with IVR and coolant passage orientation. Inlet lip separation causes a jetting effect that extends throughout the length of the cooling hole. The exit velocity profiles and turbulence distributions are highly dependent on the IVR. In addition, the effect of blowing ratio between coolant and external cross-flow is investigated through flow field measurements at the hole exit. Computational simulations of limited flow configurations, together with discharge coefficient and axial pressure distribution measurements, enable a complete description of the internal flow dynamics and provide important data for use in cooling system design and validation of numerical simulations.
Inhomogeneity of a rotating quark-gluon plasma from holography
Creators: name: Braga, Nelson R. F.
name: Junqueira, Octavio C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Rotation affects the transition temperature between confined (hadronic) and deconfined (quark-gluon plasma) phases of the strongly interacting matter produced in non-central heavy ion collisions. A holographic description of this effect was presented recently, considering an AdS black hole with cylindrical symmetry in rotation. Here we extend this approach in order to analyse the more realistic case of strongly interacting matter that, rather than living in a cylindrical shell, spreads over a region around the rotational axis. In this case, the confined and deconfined phases may coexist. The holographic description of the plasma behaviour under rotation is shown to be consistent with the concept of local temperature for rotating frames developed by Tolman and Ehrenfest.
description: 12 pages, 3 figures. Updated version, accepted for publication in PLB
Advances in MgB$_2$ Superconductor Applications for Particle Accelerators
Creators: name: Yamamoto, Akira
Publisher: name: arXiv
Year: 2022
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The MgB$_2$ superconductor, discovered in 2001, has provided unique compound features of magnesium diboride with much higher critical temperature and critical field compared to NbTi superconductor. Its applications have been expanding owing to its superior energy balance in high-temperature operation and to its excellent stability and operational margin because of the higher critical temperature and heat capacity. This paper reviews the recent advances in MgB$_2$ applications in the field of particle accelerators focusing on superconducting power transmission (superconducting link) and superconducting magnets, and also briefly discusses the future prospects and improvement expected such as radiation hardness issues and cost-effective fabrication for wider applications and industrialization.
Study of voltage cycling conditions on Pt oxidation and dissolution in polymer electrolyte fuel cells
Creators: name: Kovtunenko, V. A.
name: Karpenko-Jereb, L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 78A57, 80A30, 80A32, 35K57

description: This paper is devoted to study the electrochemical behavior of Pt catalyst in a polymer electrolyte fuel cell at various operating conditions and at different electric potential difference (also known as voltage) cycling applied in accelerated stress tests. The degradation of platinum is considered with respect to the Pt ion dissolution and the Pt oxide coverage of catalyst described by a one-dimensional model. In the model, degradation rate increases with temperature and decreasing particle diameter of Pt nano-particles. The theoretical study of the underlying diffusion system with the nonlinear reactions is presented by analytical methods and gives explicit solutions through a first integral of the ODE system. Numerical tests are obtained using a second order implicit-explicit scheme. The computer simulation shows that the lifetime of the catalyst depends on the voltage profile and the upper potential level. By this Pt mass loss is more significant at the membrane surface than at the gas diffusion layer.
Steady-state edge burst: From free-particle systems to interaction-induced phenomena
Creators: name: Hu, Yu-Min
name: Xue, Wen-Tan
name: Song, Fei
name: Wang, Zhong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The interplay between the non-Hermitian skin effect and the imaginary gap of lossy lattices results in the edge burst, a boundary-induced dynamical phenomenon in which an exceptionally large portion of particle loss occurs at the edge. Here, we find that this intriguing non-Hermitian dynamical phenomenon can be exactly mapped into the steady-state density distribution of a corresponding open quantum system. Consequently, the bulk-edge scaling relation of loss probability in the edge burst maps to that of steady-state density. Furthermore, we introduce a many-body open-system model in which the two-body loss generates an interaction-induced non-Hermitian skin effect. Using the positive-$P$ method, we demonstrate the validity of the scaling relation for steady-state correlators. These results provide a unique perspective on the interaction-induced many-body non-Hermitian skin effect. Our predictions are testable in state-of-the-art experimental platforms.
description: 13 pages, 6 figures
LA RIVOLTA CONTRO LA MORTE: È POSSIBILE UN’IDENTITÀ SENZA MORTALITÀ?
Creators: name: Sisto, Davide
Publisher: name: Thaumàzein | Rivista di Filosofia
Year: 2018
Subjects: Death; Death Studies; Transhumanism; Canetti; Immortality.

description: This essay will firstly recapitulate the main features of Elias Canetti’s struggle against death, seen as the source of a noxious kind of bond between power and survival. Secondly, the aim of this essay will be to highlight the main negative consequences of a possible war against death: namely, the socio-cultural removal of death and the development of immortalist theories and of transhumanism. Thirdly, and lastly, we will try to demonstrate that there cannot be an identity without mortality, namely a life without the presence of death. The very acceptance of death as an integral part of life is what represents an important opportunity to rediscover the value of our existential vulnerability, that must be set against the noxious and inhuman bond between power and survival.
description: Thaumàzein | Rivista di Filosofia, Vol 4 (2016): Vol. 5 (2017) - Volume doppio: Filosofia della nascita
Evaluation tool for demand-side management of domestic hot water load
Creators: name: Wong, KK
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis presents the development of an evaluation tool for demand-side management (DSM) of domestic hot water systems (DHWSs). The developed tool provides accurate modeling and predictions of potential peak demand reductions through direct control of DHWSs. It aims to assist distribution system operators (DSOs) in designing a DSM program to deliver desired peak load reductions while maintaining a satisfactory level of comfort for all consumers. The developed tool estimates the available domestic hot water load in a controlled area, and determines optimal switching programs for direct load control (DLC). A switching program refers to a direct control schedule that strategically switches DHWSs on and off in order to achieve a desired load reduction during peak periods. To calculate the power consumption and temperature profile of a DHWS, we developed a multi-layer thermally stratified hot water system model and validated it with experimental data. The tool employs Monte Carlo probabilistic simulations to generate hot water consumption profiles for domestic consumers, and uses the hot water system model to obtain the loads associated with these hot water consumption profiles. Switching programs for DLC found via iterative optimizations, are applied to these hot water loads to meet the peak reduction targets set by the tool user. Key performance indicators (KPIs) to evaluate the performance of these switching programs and the impact on consumers' comfort as a result of implementing DLC, were also developed.