cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Kondo Screening Cloud Scaling: Impurity Entanglement and Magnetization
Creators: name: Sørensen, Erik S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The screening of an impurity spin in the Kondo model occurs over a characteristic length scale $ξ_K$, that defines the size of the Kondo screening cloud or ``mist". The presence of such a length sc A consistent way to show the presence of the screening cloud is to demonstrate scaling in the spatial correlations depending on $r$, in terms of the single variable $r/ξ_K$ rather than depending on $r$ and $ξ_K$ separately. Here we study the paradigmatic one channel Kondo model using a spin chain representation, with an impurity spin at one end of the chain coupled with a strength $J_K'$. Using Fermi liquid theory combined with numerical results, we obtain new high precision estimates of the non-universal terms in the entanglement entropy which leads to a verification of the expected non-integer ground-state degeneracy, $g$. This then allows us to study the impurity contribution to the entanglement in detail. If the impurity coupling $J_K'$ is varied, a precise determination of $ξ_K$ can then be obtained. The length scale, $ξ_K$, is then shown to characterize the scaling of both the uniform and alternating part of a measure of the magnetization of part of an odd length chain with.
description: 17 oages, 7 figures
title: Geographic characterization and environmental detection of Neoparamoeba perurans the causative agent of amoebic gill disease
Creators: name: Johnson-Mackinnon, JC
Publisher: name: University of Tasmania
Year: 2019

description: Amoebic gill disease (AGD) is a global disease that has major effects on Atlantic salmon aquaculture. AGD is caused by the facultative marine amoeba, Neoparamoeba perurans. The disease first appeared in farmed salmon in Washington and in Tasmania in the mid-1980s. Since then, AGD has become a cosmopolitan problem with an increasing mortality and economic impact. Outbreaks of AGD have been reported in thirteen countries across six continents. Even where gross pathology is not evident, there is PCR evidence that N. perurans is present on salmon gills in other geographic regions, thus creating the potential for further outbreaks. This research aimed at understanding the relationship between geographically diverse amoeba populations isolated from the gill of infected salmon, the parasite and the environment. This improved understanding of these relationships could help inform industry decisions associated with management of AGD associated risks. With respect to understanding the geographical relationships, PCR-based typing methods were used to compare samples obtained from Australia, Canada, Ireland, Scotland, Norway, and the United States of America (Chapter 2 and 3). Sequences of highly conserved genes were compared using Multilocus sequence typing (MLST) (Chapter 2), to create a dendrogram showing the relationships between samples. The analysis resolved low-level differences between samples. Building upon these analysis (Chapter 2), the Random Amplified Polymorphic DNA (RAPD) technique was used (Chapter 3) to help elucidate the extent of the genetic differences that were observed (Chapter 2). RAPD allowed for a better understanding of the total genetic differences contained within the isolate genomes. The analysis showed high polymorphisms between samples. Though N. perurans is a ubiquitous organism, the apparent population differences (Chapter 2 and 3) may indicate the existence of localized populations not associated with fish. Two methods were utilized to investigate the presence of N. perurans within benthic sediments (Chapter 4). These methods were further applied at two locations (Canada and Tasmania) containing commercial farms. N. perurans was present in the sediment at both locations indicating the potential of sediment as a reservoir. Finally, Chapter 5 concludes the findings of this research and relates them to the current knowledge of the N. perurans, its role in the environment and potential for risk management.
Distinct aggregation patterns and fluid porous phase in a 2D model for colloids with competitive interactions
Creators: name: Bordin, José Rafael
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In this paper we explore the self-assembly patterns in a two dimensional colloidal system using extensive Langevin Dynamics simulations. The pair potential proposed to model the competitive interaction have a short range length scale between first neighbors and a second characteristic length scale between third neighbors. We investigate how the temperature and colloidal density will affect the assembled morphologies. The potential shows aggregate patterns similar to observed in previous works, as clusters, stripes and porous phase. Nevertheless, we observe at high densities and temperatures a porous mesophase with a high mobility, which we name fluid porous phase, while at lower temperatures the porous structure is rigid. triangular packing was observed for the colloids and pores in both solid and fluid porous phases. Our results show that the porous structure is well defined for a large range of temperature and density, and that the fluid porous phase is a consequence of the competitive interaction and the random forces from the Langevin Dynamics.
title: The changing paradigms of contemporary consumerism : sustainability, adaptation and spatial tactics for shopping scapes
Creators: name: Máté, KJH
Publisher: name: University of Tasmania
Year: 2019

description: This research investigates alternative spatio-temporal forms of encounter and exchange influenced by efficient and resilient practices of sustainable consumerism. These practices challenge the design of shopping scapes within the current dominant economic paradigm, through provocations I term ‘curious spaces’. The aim of this thesis is to extend the current discourse of sustainable consumerism into the area of interiority and the spaces within which these practices of exchange take place. The arguments in the thesis are supported by creative projects which I have undertaken, including The ByeBuy! Shop, an intervention of sustainable consumer practices held in Launceston in 2014. These spaces stirred the imagination of participants through the curiousness of ‘what if’. Curious spaces reconfigure questions of community, sustainability and ethics through consumers’ direct engagement with the “thingness” of consumption, beyond commodities to be purchased. I contend that by shifting relations from the current typological boundaries of shopping scapes — the focus on sustainable products and the behaviour of consumers to consume such products (or not) — to the practice of sustainable consumerism, opportunities to ‘act otherwise’ are revealed. I offer alternate interior spatial speculations centred around human curiosity, social collaboration and the agency of things; that do not anticipate answers but offer strategies and tactics for integrating the new with the extant, based on interior approaches of intervention, insertion and installation.
(500535) William Hubbick
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Geistliche Seelen-Music, das ist, Geist- und trostreiche Gesäng in allerley Anligen zu Trost und Erquickung Gott-liebender Seelen : aus unterschiedlichen musicalischen Bücheren zu 3. und 4. Stimmen zusammen gesetzet, mit einem General-Bass, lieblichen Geigenstimmen, à 3.4.5. anmuhtigen einstimmigen Sing Weisen und Fugen
Geistliche Seelen-Musik
Creators: name: Huber, Christian
Publisher: name: in Verlag Laurentz Hochreutiners
Year: 1719

description: [Christian Huber]
description: Titelblatt in Rot-Schwarzdruck
description: Auf dem Vorsatzbl. hs. Eintrag "Dieses Buch gehöret mir Elibetha Weingerind 21 Tag Merz nach der genadenreichen Geburt unsers Herrn und Heilans Jusu Christi 1743"
Quantum Learning with Noise and Decoherence: A Robust Quantum Neural Network
Creators: name: Nguyen, Nam H.
name: Behrman, Elizabeth C.
name: Steck, James E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Noise and decoherence are two major obstacles to the implementation of large-scale quantum computing. Because of the no-cloning theorem, which says we cannot make an exact copy of an arbitrary quantum state, simple redundancy will not work in a quantum context, and unwanted interactions with the environment can destroy coherence and thus the quantum nature of the computation. Because of the parallel and distributed nature of classical neural networks, they have long been successfully used to deal with incomplete or damaged data. In this work, we show that our model of a quantum neural network (QNN) is similarly robust to noise, and that, in addition, it is robust to decoherence. Moreover, robustness to noise and decoherence is not only maintained but improved as the size of the system is increased. Noise and decoherence may even be of advantage in training, as it helps correct for overfitting. We demonstrate the robustness using entanglement as a means for pattern storage in a qubit array. Our results provide evidence that machine learning approaches can obviate otherwise recalcitrant problems in quantum computing.
description: submitted for inclusion in Quantum Machine Learning, a book to be published by Cambridge
(500536) Henry Alder
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Self-Sustained And Coordinated Rhythmic Deformations With SMA For Controller-Free Locomotion
Creators: name: Zhou, Ziyang
name: Li, Suyi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This study presents a modular, electronics-free, and fully onboard control and actuation approach for SMA-based soft robots to achieve locomotion tasks. This approach exploits the nonlinear mechanics of compliant curved beams and carefully designed mechanical control circuits to create and synchronize rhythmic deformation cycles, mimicking the central pattern generators (CPG) prevalent in animal locomotions. More specifically, the study elucidates a new strategy to amplify the actuation performance of the shape memory coil actuator by coupling it to a carefully designed, mono-stable curve beam with a snap-through buckling behavior. Such SMA-curved beam assembly is integrated with an entirely mechanical circuit featuring a slider mechanism. This circuit can automatically cut off and supply current to the SMA according to its deformation status, generating a self-sustained rhythmic deformation cycle using a simple DC power supply. Finally, this study presents a new strategy to coordinate (synchronize) two rhythmic deformation cycles from two robotic modules to achieve efficient crawling locomotion but still use a single DC power. This work represents a significant step towards fully autonomous, electronics-free SMA-based locomotion robots with fully onboard actuation and control.
Stability and electronic properties of "4-8"-type ZnSnN$_2$ thin films free of spontaneous polarization for optoelectronic devices
Creators: name: Fang, D. Q.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ternary nitride ZnSnN$_2$ is a promising photovoltaic absorber material. In this work, using first-principles calculations, we investigate the stability and electronic properties of "4-8"-type ZnSnN$_2$ thin films. We find that below a certain thickness "4-8"-type thin films have lower total energy than polar films. For 4-layer ZnSnN$_2$ thin film, the Pna2$_1$/Pmc2$_1$ $\rightarrow$ 4-8 transition can spontaneously occur at finite temperatures. All "4-8"-type thin films studied are semiconducting and free of spontaneous polarization, the bandgaps of which can be tuned by the thickness of films, ranging from 1.4 eV to 1.8 eV. Furthermore, these films show light electron effective masses, and octet-rule-preserving disorder has insignificant effects on the electronic properties. Our results provide new insights into the structure of ZnSnN$_2$ in the thin film form and guidance for the experimental investigation.
Cosmological exploitation of cosmic void statistics - New numerical tools in the CosmoBolognaLib to extract cosmological constraints from the void size function
Creators: name: Ronconi, Tommaso
name: Marulli, Federico
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present new numerical tools to analyse cosmic void catalogues, implemented inside the CosmoBolognaLib, a large set of Open Source C++/Python numerical libraries. The CosmoBolognaLib provides a common numerical environment for cosmological calculations. This work extends these libraries by adding new algorithms for cosmological analyses of cosmic voids, covering the existing gap between theory and observations. We implemented new methods to model the size function of cosmic voids, in both observed and simulated samples of dark matter and biased tracers. Moreover, we provide new numerical tools to construct unambiguous void catalogues. The latter are designed to be independent of the void finder, in order to allow a high versatility in comparing independent results. The implemented Open Source software is available at the GitHub repository https://github.com/federicomarulli/CosmoBolognaLib. We provide also a full doxygen documentation and some example codes that explain how to use these libraries.
description: 8 pages, 5 figures, reviewed version published in Astronomy & Astrophysics
Tackling Challenges of Robustness Measures for Autonomous Agent Collaboration in Open Multi-Agent Systems
Creators: name: Jin, David
name: Kannengießer, Niclas
name: Sturm, Benjamin
name: Sunyaev, Ali
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2022
Subjects: open multi-agent systems
robustness
distributed artificial intelligence

description: Open multi-agent systems (OMASs) allow autonomous agents (AAs) to collaborate in coalitions to accomplish complex tasks (e.g., swarm robots exploring new terrain). In OMASs, AAs can arbitrarily join and leave the network. Thus, AAs must often collaborate with unknown AAs that may corrupt coalitions, leading to less robust systems. However, measures to improve robustness of OMASs are subject to challenges, decreasing their effectiveness. To understand how to improve coalition robustness in OMASs and address challenges of existing robustness measures, we carried out a literature review and revealed three types of robustness measures (i.e., collaboration coordination, normative control, and reliability prediction). Moreover, we found 21 challenges for the identified robustness measures and 24 corresponding solutions. By carrying out this literature review, we forge new connections between existing measures and identify challenges and measures that apply to multiple existing measures. Hereby, our work supports more robust collaborations between AAs in open systems
PyOcto: A high-throughput seismic phase associator
Creators: name: Münchmeyer, Jannes
Publisher: name: arXiv
Year: 2023
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Seismic phase association is an essential task for characterising seismicity: given a collection of phase picks, identify all seismic events in the data. In recent years, machine learning pickers have lead to a rapid growth in the number of seismic phase picks. Even though new associators have been suggested, these suffer from long runtimes and sensitivity issues when faced with dense seismic sequences. Here we introduce PyOcto, a novel phase associator tackling these issues. PyOcto uses 4D space-time partitioning and can employ homogeneous and 1D velocity models. We benchmark PyOcto against popular state of the art associators on two synthetic scenarios and a real, dense aftershock sequence. PyOcto consistently achieves detection sensitivities on par or above current algorithms. Furthermore, its runtime is consistently at least 10 times lower, with many scenarios reaching speedup factors above 50. On the challenging 2014 Iquique earthquake sequence, PyOcto achieves excellent detection capability while maintaining a speedup factor of at least 70 against the other models. PyOcto is available as an open source tool for Python on Github and through PyPI.
title: Causes and consequences of hypoxia in Atlantic salmon aquaculture
Creators: name: Oldham, TMW
Publisher: name: University of Tasmania
Year: 2018

description: Sometimes, the desire for simplification can lead us astray. In marine aquaculture cages, where fish welfare and production performance are constantly challenged by tangible threats, it is easy to dismiss invisible and difficult to monitor dissolved O\(_2\) (DO) as unimportant. But to do so is to ignore the fundamental importance of O\(_2\) for survival and its underlying role in overall health and wellbeing. In this thesis, I demonstrate that while DO conditions in cages rarely threaten the survival of farmed salmon, hypoxic DO levels which negatively impact production performance and welfare, defined here as the quality of life as perceived by the animal, are a common occurrence. In field experiments conducted in Norway and Tasmania, I found that DO conditions in commercial salmon cages are highly dynamic, and vary vertically, temporally and horizontally across the cage width. Several factors correlated with DO variability, including time of day, cage size, fish behavior and current speed. Using animal-borne DO sensors, I found that the variability of DO in the cage environment is mirrored in the conditions experienced by fish. Moreover, in a manipulative experiment salmon proved capable of detecting and avoiding hypoxic DO conditions, but other environmental and social factors can supersede hypoxia avoidance. And while the study design of these in- situ trials was not optimal due to the limitations of working at large scale, it is exactly that nature of this body of work which provided novel and industrially relevant insights. Given the variable and heterogeneous nature of DO in marine cages, I also investigated the implications of exposure to low DO on the production performance and welfare of salmon in controlled experimental trials. Overall, I found that metabolic O\(_2\) demand and cost of transport decrease with fish size, and increase exponentially with swimming speed. Exposure to 50% DO saturation significantly reduced aerobic scope for activity and swimming performance across a wide size range from 0.2 to 3.5 kg; and, cyclic, short-term exposure accelerated the progression of Amoebic Gill Disease compared to salmon maintained in normoxic conditions. As a whole, this thesis demonstrates that the problem of hypoxia in aquaculture cages is not intractable, but that there are no simple solutions or quick fixes. Maximizing the production performance and welfare of farmed fish necessitates a systemic approach based on a site specific understanding of the forces acting to replenish and drawdown DO, and optimizing farming strategy to match the needs of both the site and fish.
(500537) William Wright
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
The Pan-STARRS Data Processing System
Creators: name: Magnier, Eugene A.
name: Chambers, K. C.
name: Flewelling, H. A.
name: Hoblitt, J. C.
name: Huber, M. E.
name: Price, P. A.
name: Sweeney, W. E.
name: Waters, C. Z.
name: Denneau, L.
name: Draper, P.
name: Hodapp, K. W.
name: Jedicke, R.
name: Kaiser, N.
name: Kudritzki, R. -P.
name: Metcalfe, N.
name: Stubbs, C. W.
name: Wainscoast, R. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Pan-STARRS Data Processing System is responsible for the steps needed to downloaded, archive, and process all images obtained by the Pan-STARRS telescopes, including real-time detection of transient sources such as supernovae and moving objects including potentially hazardous asteroids. With a nightly data volume of up to 4 terabytes and an archive of over 4 petabytes of raw imagery, Pan-STARRS is solidly in the realm of Big Data astronomy. The full data processing system consists of several subsystems covering the wide range of necessary capabilities. This article describes the Image Processing Pipeline and its connections to both the summit data systems and the outward-facing systems downstream. The latter include the Moving Object Processing System (MOPS) & the public database: the Published Science Products Subsystem (PSPS).
description: Pan-STARRS Public Data Release 2 : Paper II
Pan-STARRS Pixel Analysis : Source Detection and Characterization
Creators: name: Magnier, Eugene A.
name: Sweeney, W. E.
name: Chambers, K. C.
name: Flewelling, H. A.
name: Huber, M. E.
name: Price, P. A.
name: Waters, C. Z.
name: Denneau, L.
name: Draper, P.
name: Jedicke, R.
name: Hodapp, K. W.
name: Kaiser, N.
name: Kudritzki, R. -P.
name: Metcalfe, N.
name: Stubbs, C. W.
name: Wainscoast, R. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Over 3 billion astronomical objects have been detected in the more than 22 million orthogonal transfer CCD images obtained as part of the Pan-STARRS1 $3π$ survey. Over 85 billion instances of those objects have been automatically detected and characterized by the Pan-STARRS Image Processing Pipeline photometry software, psphot. This fast, automatic, and reliable software was developed for the Pan-STARRS project, but is easily adaptable to images from other telescopes. We describe the analysis of the astronomical objects by psphot in general as well as for the specific case of the 3rd processing version used for the first two public releases of the Pan-STARRS $3π$ survey data, DR1 & DR2.
description: Pan-STARRS Public Data Release 2 : Paper IV
Birth and Early Growth of Entanglement by sd Exchange with Gate-Voltage-Controllable Destiny
Creators: name: Chen, Son-Hsien
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate bipartite entanglement between two distant parties, \textit{A} and \textit{B}, comprising local magnetic impurities (or qudits) induced by the quench through \textit{sd} exchange in a field-effect-transistor geometry. A wave-function-based time-dependent formalism is employed by including non-dissipative responses that allow for the control of entanglement via gate voltages. Our study focuses on the birth and early growth of entanglement, by introducing environment support states that render site- and layer-resolved logarithmic negativity (LN) and mutual information (MI). In the minimal set, where party \textit{A} (\textit{B}) consists of a qubit, we identify entanglement sudden deaths (ESDs), which are explained by a visualization picture analyzing the density matrix. Vibrating electron currents facilitate the birth of entanglement, while they are not required for its growth and subsistence. The LN emerges near the edge layers in \textit{A} and \textit{B}, while MI shows up outside these two parties within the spacing layer. The MI is born earlier than the LN. When a gate voltage large enough to disjoint part of the system is applied within the spacing region, it partially suppresses the entanglement, quantified by the LN. This suppression does not appear immediately after the presence of the disjoint voltage. Applying this disjoint voltage to the site(s) hosting the qudit(s) helps prevent the site- and layer-resolved LN from encountering ESDs. The local impurities in parties \textit{A} and \textit{B} are initially of opposite spin directions in an unentangled state, as can be prepared by two of our proposed protocols. However, the features described above do not depend on the chosen protocols.
description: 10 figures
(500538) William Barnfather
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
A Fermi-LAT Study of Globular Cluster Dynamical Evolution in the Milky Way: Millisecond Pulsars as the Probe
Creators: name: Feng, Li
name: Cheng, Zhongqun
name: Wang, Wei
name: Li, Zhiyuan
name: Chen, Yang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using archival {\it Fermi}-LAT data with a time span of $\sim12$ years, we study the population of Millisecond Pulsars (MSPs) in Globular Clusters (GlCs) and investigate their dependence on cluster dynamical evolution in the Milky Way Galaxy. We show that the $γ$-ray luminosity ($L_γ$) and emissivity ($ε_γ=L_γ/M$) are good indicators of the population and abundance of MSPs in GlCs, and they are highly dependent on the dynamical evolution history of the host clusters. Specifically speaking, the dynamically older GlCs with more compact structures are more likely to have larger $L_γ$ and $ε_γ$, and these trends can be summarized as strong correlations with cluster stellar encounter rate $Γ$ and the specific encounter rate ($Λ=Γ/M$), with $L_γ\propto Γ^{0.70\pm0.11}$ and $ε_γ\propto Λ^{0.73\pm0.13}$ for dynamically normal GlCs. However, as GlCs evolve into deep core collapse, these trends are found to be reversed, implying that strong encounters may have lead to the ejection of MSPs from core-collapsed Systems. Besides, the GlCs are found to exhibit larger $ε_γ$ with increasing stellar mass function slope, decreasing tidal radius and distances from the Galactic Center (GC). These correlations indicate that, as GlCs losing kinetic energy and spiral in towards GC, tidal stripping and mass segregation have a preference in leading to the loss of normal stars from GlCs, while MSPs are more likely to concentrate to cluster center and be deposited into the GC. Moreover, we gauge $ε_γ$ of GlCs is $\sim10-1000$ times larger than the Galactic bulge, the latter is thought to reside thousands of unresolved MSPs and may responsible for the GC $γ$-ray excess, which support that GlCs are generous contributors to the population of MSPs in the GC.
description: 23 pages, 9 figures, 3 tables, accepted for publication in RAA
Tracking Gaze and Visual Focus of Attention of People Involved in Social Interaction
Creators: name: Massé, Benoît
name: Ba, Silèye
name: Horaud, Radu
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The visual focus of attention (VFOA) has been recognized as a prominent conversational cue. We are interested in estimating and tracking the VFOAs associated with multi-party social interactions. We note that in this type of situations the participants either look at each other or at an object of interest; therefore their eyes are not always visible. Consequently both gaze and VFOA estimation cannot be based on eye detection and tracking. We propose a method that exploits the correlation between eye gaze and head movements. Both VFOA and gaze are modeled as latent variables in a Bayesian switching state-space model. The proposed formulation leads to a tractable learning procedure and to an efficient algorithm that simultaneously tracks gaze and visual focus. The method is tested and benchmarked using two publicly available datasets that contain typical multi-party human-robot and human-human interactions.
description: 15 pages, 8 figures, 6 tables
(500539) William Dickson
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Subcoercive-field dielectric response of $0.5(\text{Ba}_{0.7}\text{Ca}_{0.3}\text{TiO}_{3})-0.5(\text{BaZr}_{0.2}\text{Ti}_{0.8}\text{O}_{3})$ thin film: peculiar third harmonic signature of phase transitions and residual ferroelectricity
Creators: name: Nadaud, Kevin
name: Nataf, Guillaume F.
name: Jaber, Nazir
name: Bah, Micka
name: Negulescu, Béatrice
name: Andreazza, Pascal
name: Birnal, Pierre
name: Wolfman, Jérôme
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Sub-coercive field non-linearities in $0.5(\text{Ba}_{0.7}\text{Ca}_{0.3}\text{TiO}_{3})-0.5(\text{BaZr}_{0.2}\text{Ti}_{0.8}\text{O}_{3})$ (BCTZ 50/50) thin film elaborated using pulsed laser deposition are studied using permittivity and phase angle of the third harmonic measurements as function of the AC measuring field $E_{\mathit{AC}}$ and temperature.
 The global phase transition temperature $T_{\mathit{max}}$ for which the permittivity is maximum, decreases from 330 K to 260 K when $E_{\mathit{AC}}$ increases.
 Rayleigh analysis of the AC field dependence of the relative permittivity shows a regular decrease of the domain wall motion contributions as temperature increases up to $T_{\mathit{max}}$ and an even more pronounced decrease above $T_{\mathit{max}}$.
 This measurement reveals that the ferroelectric behavior subsists 70 K above the global phase transition.
 The phase angle of the third harmonic at temperatures below 275 K, is characteristic of a conventional ferroelectric and from 275 K to $T_{\mathit{max}}=$ 330 K of a relaxor.
 Above $T_{\mathit{max}}$, the thin film exhibits a peculiar phase angle of the third harmonic, which consists of ${-180}°\rightarrow {-225}°\rightarrow {+45}° \rightarrow {0}°$ instead of the ${-180}°\rightarrow {-90}° \rightarrow {0}°$ found for relaxor.
 This peculiar behavior is observed only on heating, and is tentatively attributed to changes in the correlations between polar nanoregions.
Summing coincidence in rare event gamma-ray measurements under an ultra-low background environment
Creators: name: He, Liu-Chun
name: Diao, Li-Jun
name: Sun, Bao-Hua
name: Zhu, Li-Hua
name: Zhao, Jian-Wei
name: Wang, Meng
name: Wang, Kang
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A Monte Carlo method based on the GEANT4 toolkit has been developed to correct the full-energy peak (FEP) efficiencies of a high purity germanium (HPGe) detector equipped with a low background shielding system, and moreover evaluated using summing peaks in a numerical way. It is found that the FEP efficiencies of $^{60}$Co, $^{133}$Ba and $^{152}$Eu can be improved up to 18\% by taking the calculated true summing \mbox{coincidence} factors (TSCFs) correction into account. Counts of summing coincidence $γ$ peaks in the spectrum of $^{152}$Eu can be well reproduced using the corrected efficiency curve within an accuracy of 3\%.
description: replace with the accepted version
Magnetic elastomers as specific soft actuators -- predicting particular modes of deformation from selected configurations of magnetizable inclusions
Creators: name: Fischer, Lukas
name: Menzel, Andreas M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Amongst the various fascinating types of material behavior featured by magnetic gels and elastomers are magnetostrictive effects. That is, deformations in shape or changes in volume are induced from outside by external magnetic fields. Application of the materials as soft actuators is therefore conceivable. Mostly, straight contraction or extension of the materials along a certain direction is discussed and investigated in this context. Here, we demonstrate that various further, different, higher modes of deformation can be excited. To this end, different spatial arrangements of the magnetizable particles enclosed by the soft elastic matrix, which constitute the materials, need to be controlled and realized. We address various different types of spatial configurations of the particles and evaluate resulting types of deformation using theoretical tools developed for this purpose. Examples are sheet-like arrangements of particles, circular or star-shaped arrangements of chain-like aggregates, or actual three-dimensional star-like particle configurations. We hope to stimulate with our work the development of experimental design and engineering methods so that selected spatial particle arrangements in magnetic gels and elastomers can be put to reality. Overall, we in this way wish to promote the transfer of these promising class of materials to real-world applications.
description: 17 pages, 19 figures
(500540) William Dickson
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
title: Modelling and solar PV contribution to marine electric propulsion
Creators: name: Symington, WP
Publisher: name: University of Tasmania
Year: 2019

description: Efficiency improvement and emissions reduction initiatives world-wide are creating a significant opportunity for Australian shipbuilders. However, the application of electrical and renewable-energy technologies in vessels built by Australian aluminium shipbuilders is at least five years behind their European counterparts. This research project reviewed international progress in marine electrical and renewable energy systems research and development. It also identified and highlighted the market drivers for high-efficiency vessel development in Australia. A software model for use in the preliminary design of marine electric propulsion systems was investigated. The model development was commenced with an investigation of methods for approximating hull and propeller performance using minimal input parameters. The model was checked using the performance of the first all-electric ferry to operate on the Swan River in Perth, Western Australia. The application of solar photovoltaic (PV) technology to marine propulsion was investigated. An index was developed for calculating a vessel’s maximum feasible power by solar PV (MFPS). A solar PV battery charger was designed for a shunting locomotive, along with a reference PV cell and data logging equipment. The use of a locomotive provided a moving platform with some similarities to a shipboard solar PV installation, but with the benefit of continuous operation within 3.5km of two Bureau of Meteorology weather stations. Analysis of the weather and insolation data sets provides insights for improving the design of future marine solar PV installations.
Pan-STARRS Photometric and Astrometric Calibration
Creators: name: Magnier, Eugene. A.
name: Schlafly, Edward. F.
name: Finkbeiner, Douglas P.
name: Tonry, J. L.
name: Goldman, B.
name: Röser, S.
name: Schilbach, E.
name: Chambers, K. C.
name: Flewelling, H. A.
name: Huber, M. E.
name: Price, P. A.
name: Sweeney, W. E.
name: Waters, C. Z.
name: Denneau, L.
name: Draper, P.
name: Hodapp, K. W.
name: Jedicke, R.
name: Kudritzki, R. -P.
name: Metcalfe, N.
name: Stubbs, C. W.
name: Wainscoast, R. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present the details of the photometric and astrometric calibration of the Pan-STARRS1 $3π$ Survey. The photometric goals were to reduce the systematic effects introduced by the camera and detectors, and to place all of the observations onto a photometric system with consistent zero points over the entire area surveyed, the ~30,000 square degrees north of $δ$ = -30 degrees. The astrometric calibration compensates for similar systematic effects so that positions, proper motions, and parallaxes are reliable as well. The Pan-STARRS Data Release 2 (DR2) astrometry is tied to the Gaia DR1 release.
description: Pan-STARRS Public Data Release 2 : Paper V
Large deviations and conditioning for chaotic non-invertible deterministic maps: analysis via the forward deterministic dynamics and the backward stochastic dynamics
Creators: name: Monthus, Cecile
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The large deviations properties of trajectory observables for chaotic non-invertible deterministic maps as studied recently by N. R. Smith, Phys. Rev. E 106, L042202 (2022) and by R. Gutierrez, A. Canella-Ortiz, C. Perez-Espigares, arXiv:2304.13754 are revisited in order to analyze in detail the similarities and the differences with the case of stochastic Markov chains. To be concrete, we focus on the simplest example displaying the two essential properties of local-stretching and global-folding, namely the doubling map $ x_{t+1} = 2 x_t [\text{mod} 1] $ on the real-space interval $x \in [0,1[$ that can be also analyzed via the decomposition $x= \sum_{l=1}^{+\infty} \frac{σ_l}{2^l} $ into binary coefficients $σ_l=0,1$. The large deviations properties of trajectory observables can be studied either via deformations of the forward deterministic dynamics or via deformations of the backward stochastic dynamics. Our main conclusions concerning the construction of the corresponding Doob canonical conditioned processes are: (i) non-trivial conditioned dynamics can be constructed only in the backward stochastic perspective where the reweighting of existing transitions is possible, and not in the forward deterministic perspective ; (ii) the corresponding conditioned steady state is not smooth on the real-space interval $x \in [0,1[$ and can be better characterized in the binary space $σ_{l=1,2,..,+\infty}$. As a consequence, the backward stochastic dynamics in the binary space is also the most appropriate framework to write the explicit large deviations at level 2 for the probability of the empirical density of long backward trajectories.
description: v2=revised version with new discussions (34 pages)
Surface Charges for Gravity and Electromagnetism in the First Order Formalism
Creators: name: Frodden, Ernesto
name: Hidalgo, Diego
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A new derivation of surface charges for 3+1 gravity coupled to Electromagnetism is obtained. Gravity theory is written in the tetrad-connection variables. The general derivation starts from the Lagrangian and uses the covariant symplectic formalism in the language of forms. For gauge theories surface charges disentangle physical from gauge symmetries through the use of Noether identities and the exactness symmetry condition. The surface charges are quasilocal, explicitly coordinate independent, gauge invariant, and background independent. For a black hole family solution the surface charge conservation implies the first law of black hole mechanics. As a check we show the first law for black hole electrically charged, rotating, and with an asymptotically constant curvature (the Kerr-Newman (anti-)de Sitter family). The charges, including the would-be mass term appearing in the first law, are quasilocal. It is not required a reference to the asymptotic structure of the spacetime nor boundary conditions, and therefore topological terms do not play a rôle. Finally, surface charges formulae for Lovelock gravity coupled to Electromagnetism are exhibited. It generalizes the one derived in a recent work by G. Barnich, P. Mao, and R. Ruzziconi. The two different symplectic methods to define surface charges are compared and shown equivalent.
description: v3: CQG accepted version. Text and references further improved. Two new subsection added: "Why surface charges?" and "Topological and boundary terms effect on surface charges."
(500541) John Fishwick
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
The extended Einstein-Maxwell-aether-axion theory: Effective metric as an instrument of the aetheric control over the axion dynamics
Creators: name: Balakin, Alexander B.
name: Shakirzyanov, Amir F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the framework of the Einstein-Maxwell-aether-axion theory we consider the self-consistent model based on the concept of a two-level control, which is carried out by the dynamic aether over the behavior of the axionically active electrodynamic system. The Lagrangian of this model contains two guiding functions, which depend on four differential invariants of the aether velocity: the scalar of expansion of the aether flow, the square of the acceleration four-vector, the squares of the shear and vorticity tensors. The guiding function of the first type is an element of the effective aetheric metric; this effective metric is involved in the formulation of kinetic terms for the vector, pseudoscalar and electromagnetic fields and predetermines features of their evolution. The guiding function of the second type is associated with the distribution of axions and describes its vacuum average value; basically, this function appears in the potential of the axion field and predetermines the position and depth of its minima. The self-consistent set of coupled master equations of the model is derived. The example of the static spherically symmetric system is considered as an application.
description: 11 pages, 0 figures
Extremal surfaces in glue-on AdS/$T\bar T$ holography
Creators: name: Apolo, Luis
name: Hao, Peng-Xiang
name: Lai, Wen-Xin
name: Song, Wei
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: $T\bar T$ deformed CFTs with positive deformation parameter have been proposed to be holographically dual to Einstein gravity in a glue-on $\mathrm{AdS}_3$ spacetime. The latter is constructed from AdS$_3$ by gluing a patch of an auxiliary AdS$_3^*$ spacetime to its asymptotic boundary. In this work, we propose a glue-on version of the Ryu-Takayanagi formula, which is given by the signed area of an extremal surface. The extremal surface is anchored at the endpoints of an interval on a cutoff surface in the glue-on geometry. It consists of an RT surface lying in the AdS$_3$ part of the spacetime and its extension to the AdS$_3^*$ region. The signed area is the length of the RT surface minus the length of the segments in AdS$_3^*$. We find that the Ryu-Takayanagi formula with the signed area reproduces the entanglement entropy of a half interval for $T\bar T$-deformed CFTs on the sphere. We then study the properties of extremal surfaces on various glue-on geometries, including Poincaré $\mathrm{AdS}_3$, global $\mathrm{AdS}_3$, and the BTZ black hole. When anchored on multiple intervals at the boundary, the signed area of the minimal surfaces undergoes phase transitions with novel properties. In all of these examples, we find that the glue-on extremal surfaces exhibit a minimum length related to the deformation parameter of $T\bar T$-deformed CFTs.
description: 39 pages, 9 figures; v2: added references; v3: fixed typos, matches published version