cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
OmniUV: A Multi-Purpose Simulation Toolkit for VLBI Observation
Creators: name: Liu, Lei
name: Zheng, Weimin
name: Fu, Jian
name: Xu, Zhijun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present OmniUV, a multi-purpose simulation toolkit for space and ground VLBI observations. It supports various kinds of VLBI stations, including Earth (ground) fixed, Earth orbit, Lunar fixed, Lunar orbit, Moon-Earth and Earth-Sun Lagrange 1 and 2 points, etc. The main functionalities of this toolkit are: (1) Trajectory calculation; (2) Baseline uv calculation, by taking the vailability of each station into account; (3) Visibility simulation for the given uv distribution, source structure and system noise; (4) Image and beam reconstruction. Two scenarios, namely space VLBI network and wide field array, are presented as demonstrations of the toolkit applications in completely different scales. OmniUV is the acronym of "Omnipotent UV". We hope it could work as a general framework, in which various kinds of stations could be easily incorporated and the functionalities could be further extended. The toolkit has been made publicly available.
description: 16 pages, 10 figures, accepted for publication in AJ
Refractive index confidence explorer (RICE): A tool for propagating uncertainties through complex refractive index retrievals from aerosol particles
Creators: name: Frie, Alexander L.
name: Bahreini, Roya
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Sociology
subject: FOS: Sociology

description: Accurate and precise retrievals of aerosol complex refractive indices (m) are essential to constraining the direct radiative effect of atmospheric aerosols. Despite this, there is no generally accepted method for constraining the uncertainty in full-distribution aerosol complex refractive index retrievals. This is in part due to condition-dependent and solution-dependent uncertainties which propagate through retrievals. Here, the Refractive Index Confidence Explorer (RICE), a program written in WaveMetrics Igor Pro, is presented. RICE applies a Monte Carlo-like method to propagate uncertainties through a full size distribution inverse Mie method (FD-IMM) for m retrievals. The m retrieval and RICE uncertainty analysis use absorption coefficients, scattering coefficients, aerosol size distributions, and measurement uncertainties as inputs. RICE iteratively tests a series of m values for their ability to produce the retrieved m under perturbed conditions. Perturbations account for uncertainties in optical, particle size, and particle number concentration measurements. RICE then uses these data to calculate semi-empirical probability distributions which are used to provide confidence intervals for the real (n) and imaginary (k) components of m. RICE provides measurement by measurement uncertainty estimations enabling estimation of uncertainty even when conditions are highly dynamic, like those associated with field measurements. When RICE is applied to idealized test cases and external data, uncertainty is shown to be dynamic in relation to the value of the retrieved m (solution) and the nature of the particle size distribution (measurement condition). Within these cases, m uncertainties were shown to be large for the upper end of n and k values explored here (i.e., n = 1.8 and k = 0.5, at 375 nm) under uncertainty conditions typical of modern particle and optical measurement technologies, suggesting FD-IMM’s usefulness may be limited by instrumental uncertainties under some measurement conditions. However, FD-IMM retrievals may still provide reasonable estimates of m when n <∼1.6 and k < 0.1. Copyright © 2021 American Association for Aerosol Research
Veronica virginica Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Plantaginaceae
Veronica
Veronica virginica

description: virginica, spec. nov.
1. Veronica spicis terminalibus, foliis quaternis quinisve.
Veronica foliis quaternis quinisve. Hort. cliff.7 * Gron. virg.4. Roy. lugdb. 301. Cold. noveb.3.
Veronica virginiana procerior, foliis ternis, quaternis & etiam quinis caulem amplexantibus, spicis florum candidissimis. Pluk. alm. 383. t.70. f.2.
Habitat in Virginia. ♃
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on pages 9-10, DOI: 10.5281/zenodo.3931989
Comparing Aerosol Concentrations and Particle Size Distributions Generated by Singing, Speaking and Breathing
Creators: name: Gregson, Florence K. A.
name: Watson, Natalie A.
name: Orton, Christopher M.
name: Haddrell, Allen E.
name: McCarthy, Lauren P.
name: Finnie, Thomas J. R.
name: Gent, Nick
name: Donaldson, Gavin C.
name: Shah, Pallav L.
name: Calder, James D.
name: Bzdek, Bryan R.
name: Costello, Declan
name: Reid, Jonathan P.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Evolutionary Biology
subject: 111714 Mental Health
subject: FOS: Health sciences

description: The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic has resulted in an unprecedented shutdown in social and economic activity, with the cultural sector particularly severely affected. Restrictions on musical performances have arisen from a perception that there is a significantly higher risk of aerosol production from singing than speaking, based upon high-profile examples of clusters of COVID-19 following choral rehearsals. However, comparing aerosol generation from different types of vocalization, including singing, across a range of volumes is a rapidly evolving area of research. Here, we measured aerosols from singing, speaking and breathing from a large cohort of 25 professional singers in a range of musical genres in a zero-background environment, allowing unequivocal attribution of aerosol production to specific vocalizations. We do not assess the relative volumes at which people speak and sing. However, both showed steep increases in mass concentration with increase in loudness (spanning a factor of 20-30 across the dynamic range measured, p < 0.001). At the quietest volume (50 to 60 dBA), neither singing (p = 0.19) nor speaking (p = 0.20) were significantly different to breathing. At the loudest volume (90 to 100 dBA), a statistically significant difference (p < 0.001) was observed between singing and speaking, but with singing only generating a factor of between 1.5 and 3.4 more aerosol mass. Guidelines for musical performances should be based on the loudness and duration of the vocalization, the number of participants and the environment in which the activity occurs, rather than the type of vocalization. Mitigations such as the use of amplification and increased attention to ventilation should be employed where practicable.
Sentiment Analysis with Deep Learning Models: A Comparative Study on a Decade of Sinhala Language Facebook Data
Creators: name: Weeraprameshwara, Gihan
name: Jayawickrama, Vihanga
name: de Silva, Nisansa
name: Wijeratne, Yudhanjaya
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The relationship between Facebook posts and the corresponding reaction feature is an interesting subject to explore and understand. To achieve this end, we test state-of-the-art Sinhala sentiment analysis models against a data set containing a decade worth of Sinhala posts with millions of reactions. For the purpose of establishing benchmarks and with the goal of identifying the best model for Sinhala sentiment analysis, we also test, on the same data set configuration, other deep learning models catered for sentiment analysis. In this study we report that the 3 layer Bidirectional LSTM model achieves an F1 score of 84.58% for Sinhala sentiment analysis, surpassing the current state-of-the-art model; Capsule B, which only manages to get an F1 score of 82.04%. Further, since all the deep learning models show F1 scores above 75% we conclude that it is safe to claim that Facebook reactions are suitable to predict the sentiment of a text.
description: 8 pages, LaTeX; typos corrected
Bound states in the continuum in a two-channel Fano-Anderson model
Creators: name: Grez, Bastián
name: Ramos-Andrade, Juan Pablo
name: Juričić, Vladimir
name: Orellana, Pedro A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this article, we study the formation of the bound states in the continuum (BICs) in a two-channel Fano-Anderson model. We employ the Green's function formalism, together with the equation of motion method, to analyze the relevant observables, such as the transmission coefficient and the density of states. Most importantly, our results show that the system hosts true BICs for the case of a symmetric configuration with the degenerate impurity levels, and a complete transmission channel is then suppressed. Finally, we argue that the proposed mechanism could be relevant for the realization of BICs in the electronic and photonic systems.
description: 9 figures, 8 pages
A Novel Nuclear Emulsion Detector for Measurement of Quantum States of Ultracold Neutrons in the Earth's Gravitational Field
Creators: name: Muto, Naoto
name: Abele, Hartmut
name: Ariga, Tomoko
name: Bosina, Joachim
name: Hino, Masahiro
name: Hirota, Katsuya
name: Ichikawa, Go
name: Jenke, Tobias
name: Kawahara, Hiroaki
name: Kawasaki, Shinsuke
name: Kitaguchi, Masaaki
name: Micko, Jakob
name: Mishima, Kenji
name: Naganawa, Naotaka
name: Nakamura, Mitsuhiro
name: Roccia, Stéphanie
name: Sato, Osamu
name: Sedmik, René I. P.
name: Seki, Yoshichika
name: Shimizu, Hirohiko M.
name: Tada, Satomi
name: Umemoto, Atsuhiro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Hypothetical short-range interactions could be detected by measuring the wavefunctions of ultracold neutrons (UCNs) on a mirror bounded by the Earth's gravitational field. The Searches require detectors with higher spatial resolution. We are developing a UCN detector for the with a high spatial resolution, which consists of a Si substrate, a thin converter layer including $^{10}$B$_{4}$C, and a layer of fine-grained nuclear emulsion. Its resolution was estimated to be less than 100 nm by fitting tracks of either $^{7}$Li nuclei or $α$-particles, which were created when neutrons interacted with the $^{10}$B$_{4}$C layer. For actual measurements of the spatial distributions, the following two improvements were made: The first was to establish a method to align microscopic images with high accuracy within a wide region of 65 mm $\times$ 0.2 mm. We created reference marks of 1 $μ$m and 5 $μ$m diameter with an interval of 50 $μ$m and 500 $μ$m, respectively, on the Si substrate by electron beam lithography and realized a position accuracy of less than 30 nm. The second was to build a holder that could maintain the atmospheric pressure around the nuclear emulsion to utilize it under vacuum during exposure to UCNs. The intrinsic resolution of the improved detector was estimated by evaluating the blur of a transmission image of a gadolinium grating taken by cold neutrons as better than 0.56 $\pm$ 0.08 $μ$m, which included the grating accuracy. A test exposure to UCNs was conducted to obtain the spatial distribution of UCNs in the Earth's gravitational field. Although the test was successful, a blurring of 6.9 $μ$m was found in the measurements, compared with a theoretical curve. We identified the blurring caused by the refraction of UCNs due to the roughness of the upstream surface of the substrate. Polishing of the surface makes the resolution less than 100 nm.
Ability-Based Methods for Personalized Keyboard Generation
Creators: name: Mitchell, Claire L.
name: Cler, Gabriel J.
name: Fager, Susan K.
name: Contessa, Paola
name: Roy, Serge H.
name: De Luca, Gianluca
name: Kline, Joshua C.
name: Vojtech, Jennifer M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: This study introduces an ability-based method for personalized keyboard generation, wherein an individual's own movement and human-computer interaction data are used to automatically compute a personalized virtual keyboard layout. Our approach integrates a multidirectional point-select task to characterize cursor control over time, distance, and direction. The characterization is automatically employed to develop a computationally efficient keyboard layout that prioritizes each user's movement abilities through capturing directional constraints and preferences. We evaluated our approach in a study involving 16 participants using inertial sensing and facial electromyography as an access method, resulting in significantly increased communication rates using the personalized keyboard (52.0 bits/min) when compared to a generically optimized keyboard (47.9 bits/min). Our results demonstrate the ability to effectively characterize an individual's movement abilities to design a personalized keyboard for improved communication. This work underscores the importance of integrating a user's motor abilities when designing virtual interfaces.
description: 20 pages, 7 figures
Refractive Index Confidence Explorer (RICE): A Tool for Propagating Uncertainties through Complex Refractive Index Retrievals from Aerosol Particles
Creators: name: Frie, Alexander L.
name: Bahreini, Roya
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Sociology
subject: FOS: Sociology

description: Accurate and precise retrievals of aerosol complex refractive indices (m) are essential to constraining the direct radiative effect of atmospheric aerosols. Despite this, there is no generally accepted method for constraining the uncertainty in full-distribution aerosol complex refractive index retrievals. This is in part due to condition-dependent and solution-dependent uncertainties which propagate through retrievals. Here, the Refractive Index Confidence Explorer (RICE), a program written in WaveMetrics Igor Pro, is presented. RICE applies a Monte Carlo-like method to propagate uncertainties through a full size distribution inverse Mie method for m retrievals. The m retrieval and RICE uncertainty analysis use absorption coefficients, scattering coefficients, aerosol size distributions, and measurement uncertainties as inputs. RICE iteratively tests a series of m values for their ability to produce the retrieved m under perturbed conditions. Perturbations account for uncertainties in optical, particle size, and particle number concentration measurements. RICE then uses these data to calculate semi-empirical probability distributions which are used to provide confidence intervals for the real (n) and imaginary (k) components of m. RICE provides measurement by measurement uncertainty estimations enabling estimation of uncertainty even when conditions are highly dynamic, like those associated with field measurements. When RICE is applied to idealized test cases and external data, uncertainty is shown to be dynamic in relation to the value of the retrieved m (solution) and the nature of the particle size distribution (measurement condition). Within these cases, m uncertainties were shown to be large for the upper end of n and k values explored here (i.e., n = 1.8 and k = 0.5, at 375 nm) under uncertainty conditions typical of modern particle and optical measurement technologies, suggesting FD-IMMs usefulness may be limited by instrumental uncertainties under some measurement conditions. However, FD-IMM retrievals may still provide reasonable estimates of m when n <∼1.6 and k < 0.1.
Neue Kompetenzen, organisatorische Rahmenbedingungen und Instrumente zur emergenten Förderung von Prozessinnovationen.
Creators: name: Bellone, Veronika
name: Matla, Thomas
Publisher: name: mi-Wirtschaftsbuch
Year: 2010
Subjects: subject: Franchising
subject: Konzeptaufbau
subject: Markenführung
subject: 330 - Wirtschaft

description: Franchising hat sich zu einer enormen Erfolgsstory rund um den Globus entwickelt. Unternehmen wie McDonalds, Marc O' Polo, Yves Rocher oder Swarovski haben es vorgemacht und konnten ihr Geschäftsmodell weltweit erfolgreich multiplizieren. Auch in turbulenten Krisenzeiten ist Franchising für viele Unternehmen der optimale Weg neue Märkte und Kundengruppen zu erreichen. Wie ein Franchise-System funktioniert und welche Chancen es Unternehmen und Marken bietet, zeigen die beiden langjährigen Franchise-Experten Veronika Bellone und Thomas Matla in im Praxisbuch Franchising. Die Autoren erklären, was Franchising bedeutet, welche Herausforderungen ein Franchising-Ansatz mit sich bringt und wohin sich Franchising in den nächsten Jahren entwickelt. Dabei wird auch auf neue Strömungen, wie etwa das Sozial-, Kultur- oder Greenfranchising, eingegangen. Acht Franchising-Wahrheiten dienen Unternehmern als Hilfestellung beim Aufbau des eigenen Franchise-Konzeptes und bei der Positionierung der eigenen Marke. Dabei steht der Praxisbezug immer im Zentrum. Empfehlungen für erfolgreiche Markengestaltung sowie Checklisten und Leitfäden runden das Praxisbuch Franchising ab.
Combined full shape analysis of BOSS galaxies and eBOSS quasars using an iterative emulator
Creators: name: Neveux, Richard
name: Burtin, Etienne
name: Ruhlmann-Kleider, Vanina
name: de Mattia, Arnaud
name: Semenaite, Agne
name: Dawson, Kyle S.
name: de la Macorra, Axel
name: Percival, Will J.
name: Rossi, Graziano
name: Schneider, Donald P.
name: Zhao, Gong-Bo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Standard full-shape clustering analyses in Fourier space rely on a fixed power spectrum template, defined at the fiducial cosmology used to convert redshifts into distances, and compress the cosmological information into the Alcock-Paczynski parameters and the linear growth rate of structure. In this paper, we propose an analysis method that operates directly in the cosmology parameter space and varies the power spectrum template accordingly at each tested point. Predictions for the power spectrum multipoles from the TNS model are computed at different cosmologies in the framework of $Λ\rm{CDM}$. Applied to the final eBOSS QSO and LRG samples together with the low-z DR12 BOSS galaxy sample, our analysis results in a set of constraints on the cosmological parameters $Ω_{\rm cdm}$, $H_0$, $σ_8$, $Ω_{\rm b}$ and $n_s$. To reduce the number of computed models, we construct an iterative process to sample the likelihood surface, where each iteration consists of a Gaussian process regression. This method is validated with mocks from N-body simulations. From the combined analysis of the (e)BOSS data, we obtain the following constraints: $σ_8=0.877\pm 0.049$ and $Ω_{\rm m}=0.304^{+0.016}_{-0.010}$ without any external prior. The eBOSS quasar sample alone shows a $3.1σ$ discrepancy compared to the Planck prediction.
description: 13 pages, 7 figures
New perspectives for Vienna: repositioning between east and west.
Creators: name: Kampschulte, Andrea
Publisher: name: Springer
Year: 2006
Subjects: subject: 330 - Wirtschaft
subject: 650 - Management

description: This book was written with the aim of showing that even in the era of globalization developments appearing in cities are not subject to almost unconditional global forces. Rather, universal forces are decisive eventualities in the process of urban restructuring, often influencing its course and speed, yet developments and particularities within a city strongly influence the course of events and the extent to which negative characteristics of globalization might occur. Berlin, Brussels, Hanoi, Ho Chi Minh City, Hong Kong, Jerusalem, Johannesburg, Moscow, St. Petersburg, Sarajevo and Vienna: Using these important cities the special relationship between global and local/regional forces is analyzed. The case studies were selected based on their political and cultural context and the fact that their social and political fabric was subject to major changes in the recent past. How global processes manifest themselves locally depends to a great extent on how development processes and endogenic potentials are initiated locally in order to cope with the new global economic and societal conditions.
Researching Policy Settings for Schools as Community Hubs
Creators: name: POLGLASE, ROBERT
Publisher: name: University of Melbourne
Year: 2020
Subjects: Community planning
Urban analysis and development
Urban design

description: Schools as Community Hubs are recognised for their significant contribution to communities. Yet these projects must negotiate complex policy relationships, across disciplines and various government jurisdictions to achieve stakeholder and community support, funding, and delivery for long-term integrated benefits. Policy research in this area has been scarce. This study – in the early phase of a PhD – researches policy relationships for schools as community hubs through an interpretative analysis lens of both Bacchi’s ‘What’s the Problem Represented to be?’ (Bacchi, 1999), focussing on policy ‘problematisation(s)’, and that of performative and locally enacted policy (Ball et al., 2012). This framework is applied to an interpretative policy narrative of Yuille Park (Prep to Year 8) Community College, in central Victoria, Australia. Now proclaimed as a ‘whole of life’ community centre (DET, 2020), Yuille Park relied on the skill and continuity of key actors who gave – with little formal policy direction – coordinated solutions across service provision, urban planning and facility design that has made a difference to a struggling community, generating neighbourhood uplift and helping to overcome entrenched intergenerational challenges.
The GW-Universe Toolbox II: constraining the binary black hole population with second and third generation detectors
Creators: name: Yi, Shu-Xu
name: Stoppa, Fiorenzo
name: Nelemans, Gijs
name: Cator, Eric
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We employ the method used by the GW-Universe Toolbox to generate a synthetic catalogue of detection of stellar mass binary black hole (BBH) mergers. We study advanced LIGO (aLIGO) and Einstein Telescope (ET) as two representatives for the 2nd and 3rd generation GW observatories, and study how GW observations of BBHs can be used to constrain the merger rate as function of redshift and masses. We also simulate the observations from a detector that is half as sensitive as the ET at design which represents an early phase of ET. Two methods are used to obtain the constraints on the source population properties from the catalogues: 1. parametric differential merger rate model and applies a Bayesian inference on the parameters; and 2. non-parametric and uses weighted Kernel density estimators. The results show the overwhelming advantages of the 3rd generation detector over the 2nd generation for the study of BBH population properties, especially at a redshifts higher than ~2, where the merger rate is believed to peak. With the simulated aLIGO catalogue, the parametric Bayesian method can still give some constraints on the merger rate density and mass function beyond its detecting horizon, while the non-parametric method lose the constraining ability completely there. We also find that, despite the numbers of detection of the half-ET can be easily compatible with full ET after a longer observation duration, the catalogue from the full ET can still give much better constraints on the population properties, due to its smaller uncertainties on the physical parameters of the GW events.
description: 8 pages, 10 figures, Accepted by A&A; (the abstract shown above is trimmed in order to fit in the abstract field)
Understanding the Development and Implementation of Schools as Community Hubs: A Case Study Approach
Creators: name: Rivera Yevenes, Carolina
Publisher: name: University of Melbourne
Year: 2020
Subjects: Community planning

description: There is increasing interest in schools as community hubs, both within Australia and at an international level. In the Australian context service provision, the role of infrastructure, as well as the implications of these spaces for community engagement are some of the challenges when implementing community hubs. This paper will provide a research overview of the work being undertaken by the author to investigate the development and implementation of schools as community hubs. Based on a case study approach, the aim is to understand the processes, challenges, successes, needs and opportunities of schools and their communities.
Finite Temperature Strong Coupling Expansions for the SU(N) Hubbard Model
Creators: name: Singh, Rajiv R. P.
name: Oitmaa, Jaan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We develop finite temperature strong coupling expansions for the SU(N) Hubbard Model in powers of $βt$, $w=\exp{(-βU)}$ and ${1\over βU}$ for arbitrary filling. The expansions are done in the grand canonical ensemble and are most useful at a density of one particle per site, where for $U$ larger than or of order the Bandwidth, the expansions converge over a wide temperature range $t^2/U \ \lesssim \ T \ \lesssim \ 10 U$. By taking the limit $w\to 0$, valid at temperatures much less than $U$, the expansions turn into a high temperature expansion for a dressed SU(N) Heisenberg model that includes nearest-neighbor exchange, further neighbor exchanges and ring exchanges known from the $T=0$ perturbation theory of the SU(2) Hubbard model. Below a filling of one particle per site, the $w\to 0$ limit corresponds to an effective $t-J$ model. The onset of strong correlations can be identified by a plateau-like behavior in the entropy as a function of temperature. At small deviations from one particle per site, the expansions can be arranged in powers of a small parameter $δ=1-n$, the deviation from one particle per site, where the leading $βt$ dependent terms correspond to holes sloshing around in a disordered SU(N) background. We use these expansions to calculate the thermodynamic properties of the model at moderate and high temperatures over a wide parameter range.
description: 8 pages 7 figures
Galactic Mass-to-Light Ratios With Superfluid Dark Matter
Creators: name: Mistele, Tobias
name: McGaugh, Stacy
name: Hossenfelder, Sabine
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We make rotation curve fits to test the superfluid dark matter model. In addition to verifying that the resulting fits match the rotation curve data reasonably well, we aim to evaluate how satisfactory they are with respect to two criteria, namely, how reasonable the resulting stellar mass-to-light ratios are and whether the fits end up in the regime of superfluid dark matter where the model resembles modified Newtonian dynamics (MOND). We fitted the superfluid dark matter model to the rotation curves of 169 galaxies in the SPARC sample. We found that the mass-to-light ratios obtained with superfluid dark matter are generally acceptable in terms of stellar populations. However, the best-fit mass-to-light ratios have an unnatural dependence on the size of the galaxy in that giant galaxies have systematically lower mass-to-light ratios than dwarf galaxies. A second finding is that the superfluid often fits the rotation curves best in the regime where the superfluid's force cannot resemble that of MOND without adjusting a boundary condition separately for each galaxy. In that case, we can no longer expect superfluid dark matter to reproduce the phenomenologically observed scaling relations that make MOND appealing. If, on the other hand, we consider only solutions whose force approximates MOND well, then the total mass of the superfluid is in tension with gravitational lensing data. We conclude that even the best fits with superfluid dark matter are still unsatisfactory for two reasons. First, the resulting stellar mass-to-light ratios show an unnatural trend with galaxy size. Second, the fits do not end up in the regime that automatically resembles MOND, and if we force the fits to do so, the total dark matter mass is in tension with strong lensing data.
description: 29 pages, 29 figures, published version
Making it Work: Makerspaces, Maker Community and High School Partnerships
Creators: name: Tan, Linus
name: BESSABAVA, RAVI
name: Hebden, Kristen
Publisher: name: University of Melbourne
Year: 2020
Subjects: Community planning
Other built environment and design not elsewhere classified

description: This study examines the benefits and challenges of creating partnerships between schools and their local maker community. Makerspaces are dedicated facilities for individuals to create products with specialised tools that vary greatly in different spaces. This paper focuses on makerspaces with technologies that facilitate fabrication. Based on interviews, we describe the benefits and challenges of makerspace-high school partnerships and the potential partnership between makerspaces and technical schools. In high schools, makerspaces provide students with equipment to discover problems, explore ideas and gain self-confidence. In the community, makerspaces provide patrons with opportunities to develop making skills, collaborate, generate new economic activity, and build community. Despite having similar objectives, the needs of high school makerspaces and public makerspaces are vastly different. Hence, school-makerspace partnership attempts in Victoria, Australia have often been difficult to implement and more importantly, sustain.
Extragalactic fast X-ray transient candidates discovered by Chandra (2000-2014)
Creators: name: Quirola-Vasquez, J.
name: Bauer, F. E.
name: Jonker, P. G.
name: Brandt, W. N.
name: Yang, G.
name: Levan, A. J.
name: Xue, Y. Q.
name: Eappachen, D.
name: Zheng, X. C.
name: Luo, B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Extragalactic Fast X-ray Transients (FXRTs) are short flashes of X-ray photons spanning a few seconds to hours, with an uncertain origin. Our ignorance about their physical mechanisms and progenitor systems is due in part to the lack of clear multi-wavelength counterparts in most cases because they only have been identified serendipitously. We develop a systematic search of FXRTs using a straightforward X-ray flare search algorithm, in the Chandra Source Catalog (Data Release 2.0; 169.6 Ms over 592.4 deg$^{2}$ using only observations with $|b|>10^{\circ}$ and before 2015), incorporating various multi-wavelength constraints to rule out Galactic contamination and characterize the candidates. We report the detection of 14 FXRT candidates from a parent sample of 214,701 sources. Candidates have peak 0.5-7 keV fluxes between 1$\times$10$^{-13}$ to 2$\times$10$^{-10}$ erg cm$^{-2}$ s$^{-1}$ and $T_{90}$ values from 4 to 48 ks. The sample can be subdivided into two groups: six "nearby" FXRTs that occurred within $d\lesssim$100 Mpc and eight "distant" FXRTs with likely redshifts $\gtrsim$0.1. Three distant FXRT candidates exhibit light curves with a plateau (${\approx}$1-3 ks duration) followed by a power-law decay and X-ray spectral softening, similar to what was observed for the previously reported FXRT CDF-S~XT2, a proposed magnetar-powered binary neutron star merger event. After applying completeness corrections, we calculate event rates for the nearby and distant samples of 53.7$_{-15.1}^{+22.6}$ and 28.2$_{-6.9}^{+9.8}$ deg$^{-2}$ yr$^{-1}$, respectively. This novel sample of Chandra-detected extragalactic FXRT candidates, although modest in size, breaks new ground in terms of characterizing the diverse properties, nature, and possible progenitors of these enigmatic events.
description: 44 pages, 22 figures, submitted to A&A on Jan 6, 2022, and accepted on Apr 11, 2022
On the Energy Dependence of Galactic Cosmic Ray Anisotropies in the Very Local Interstellar Medium
Creators: name: Nikoukar, Romina
name: Hill, Matthew E.
name: Brown, Lawrence
name: Krimigis, Stamatios M.
name: Decker, Robert B.
name: Dialynas, Konstantinos
name: Kota, Jozsef
name: Roelof, Edmond C.
name: Lasley, Scott
name: Hamilton, Douglas C.
name: Florinski, Vladimir
name: Giacalone, Joe
name: Richardson, John
name: Opher, Merav
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We report on the energy dependence of galactic cosmic rays (GCRs) in the very local interstellar medium (VLISM) as measured by the Low Energy Charged Particle (LECP) instrument on the Voyager 1 (V1) spacecraft. The LECP instrument includes a dual-ended solid state detector particle telescope mechanically scanning through 360 deg across eight equally-spaced angular sectors. As reported previously, LECP measurements showed a dramatic increase in GCR intensities for all sectors of the >=211 MeV count rate (CH31) at the V1 heliopause (HP) crossing in 2012, however, since then the count rate data have demonstrated systematic episodes of intensity decrease for particles around 90° pitch angle. To shed light on the energy dependence of these GCR anisotropies over a wide range of energies, we use V1 LECP count rate and pulse height analyzer (PHA) data from >=211 MeV channel together with lower energy LECP channels. Our analysis shows that while GCR anisotropies are present over a wide range of energies, there is a decreasing trend in the amplitude of second-order anisotropy with increasing energy during anisotropy episodes. A stronger pitch-angle scattering at the higher velocities is argued as a potential cause for this energy dependence. A possible cause for this velocity dependence arising from weak rigidity dependence of the scattering mean free path and resulting velocity-dominated scattering rate is discussed. This interpretation is consistent with a recently reported lack of corresponding GCR electron anisotropies.
Práctica de aula 3. Neumococo-Meningococo-Haemophilus
Creators: name: Montesdeoca-Ramírez, Daniela Celia
name: Morales-Gázquez, Mª José
Publisher: name: Zenodo
Year: 2022
Subjects: subject: Vacuna
subject: Neumococo
subject: Meningococo
subject: Haemophilus
subject: 42413

description: Material docente de la asignatura CEAPS (42413)
British Gallup Poll CQ 972
Creators: name: Social Surveys (Gallup Poll) Limited
Publisher: name: Roper Center for Public Opinion Research
Year: 2022

description: Government approval (1); Harold Wilson performance (1); Margaret Thatcher performance (1); Jeremy Thorpe performance (1); party support (1); last general election (2); urgent problems (2); best party to handle problems (1); next general election (2); government's price & income policy (13); campaign funding (3); ideal family size (1); family expenditures (2); birth control (3); smoker (2); life insurance (64); biscuits (46); salads (35).
title: Data‐driven model‐free modified nodal analysis circuit solver
Creators: name: Galetzka, Armin
name: Loukrezis, Dimitrios
name: De Gersem, Herbert
Publisher: name: John Wiley & Sons
Year: 2024

description: This work introduces a novel data‐driven model‐free modified nodal analysis (MNA) circuit solver. The solver is capable of handling circuit problems featuring elements for which solely measurement data are available. Rather than utilizing hard‐coded phenomenological model representations, the data‐driven MNA solver reformulates the circuit problem such that the solution is found by minimizing the distance between circuit states that fulfill Kirchhoff's laws, and states belonging to the measurement data. In this way, the formerly inevitable demand for model representations is eliminated, thus avoiding the introduction of related modeling errors and uncertainties. The proposed solver is applied to linear and nonlinear RC‐circuits and to a half‐wave rectifier.
The Trade-offs of Teamwork among STEM Doctoral Graduates
Creators: name: Kniffin, Kevin M.
name: Hanks, Andrew S.
Publisher: name: American Psychological Association
Year: 2018
Subjects: Teamwork
Incentives
Salaries
Income
STEM

description: Teamwork has increasingly become prevalent in professional fields such as academic science, perhaps partly because research shows that teams tend to produce superior work.  While research on teamwork typically has focused on its impact on work-products, we complement that work by examining the degree to which teamwork influences salary, hours worked, and overall job satisfaction.  Drawing on microdata collected through the National Science Foundation’s (NSF) Survey of Doctorate Recipients (SDR) as well as the Survey of Earned Doctorates (SED), we find that PhD holders in Science, Technology, Engineering, and Mathematics (STEM) fields tend to earn substantially higher salaries and work more hours if they engage in teamwork.  We also find no significant difference in overall job satisfaction as a function of whether individuals work within on-site teams.  Additionally, we find evidence that Age interacts significantly with teamwork whereby older teamworkers tend to earn relatively more when participating in teams without appearing to work more hours; and, we show that employment sector is important whereby teamwork is relevant for salaries and hours worked in Education and Industry but not in Government.  While our study is based on market outcomes and behavioral measures, our findings provide grounds for future research that examines the psychological mechanisms that are relevant to understanding why people join teams as well as the psychological consequences that people encounter through teamwork.  More generally, this study provides a model for considering individual-level antecedents and outcomes associated with teamwork where degrees of discretion exist with respect to teaming.

Article DOI: 10.1037/amp0000288

Keywords:  Teamwork; Incentives; Salaries; Income; STEM

Author Note: The use of National Science Foundation (NSF) data does not imply NSF endorsement of the research, research methods, or conclusions contained in this report.

*** Information on requesting access to the NCSES Data is online at https://www.nsf.gov/statistics/license/index.cfm. 
*** Sending an initial email to NCSES_Licensing@nsf.gov is among the first steps that is required.
Evolution of Accretion Modes between Spectral States Inferred from Spectral and Timing Analysis of Cygnus X-1 with Insight-HXMT observations
Creators: name: Feng, M. Z.
name: Kong, L. D.
name: Wang, P. J.
name: Zhang, S. N.
name: Liu, H. X.
name: Yang, Z. X.
name: Huang, Y.
name: Ji, L.
name: Jia, S. M.
name: Ma, X.
name: Yu, W.
name: Zhao, H. S.
name: Nie, J. Y.
name: Tuo, Y. L.
name: Zhang, S.
name: Qu, J. L.
name: Wu, B. B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We execute a detailed spectral-timing study of Cygnus X-1 in the low/hard, intermediate and high/soft states with the Hard X-ray Modulation Telescope observations. The broad band energy spectra fit well with the "truncated disk model" with the inner boundary of the accretion disk stays within $\sim$10 \textit R$_{\rm g}$ and moves inward as the source softens. Through studying of PDS, rms and Fourier-frequency component resolved spectroscopy, we find that the X-ray variations are generated in two different regions for each state. We discover that the major role that contributes to the X-ray variation is the hot corona rather than the accretion disk. We suggest a scenario with different corona geometry for each state based on the truncated disk geometry in which the corona wraps up the disk to form a sandwich geometry in the low/hard state, and then gradually moves away from the disk in direction that is perpendicular to the disk until forming a jet-like geometry in the high/soft state.
description: 13 pages, 12 figures, and 3 tables, accepted for publication in ApJ
Color-flavor dependence of the Nambu-Jona-Lasinio model and QCD phase diagram
Creators: name: Ahmad, Aftab
name: Murad, Ali
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the dynamical chiral symmetry breaking/restoration for the various numbers of light quarks flavors $N_f$ and colors $N_c$, using the Nambu-Jona-Lasinio (NJL) model of quarks, dressed with a color-flavor dependence of effective coupling. Initially, we set $N_f = 2$, and varying the number of colors $N_c$, we find that the dynamical chiral symmetry is broken when $N_c$ exceeds to its critical value $N^{c}_{c}\approx2.2$. Secondly, we take $N_c = 3$, and varying $N_f$, we observed that the dynamical chiral symmetry is restored when $N_f$ reaches to its critical value $N^{c}_{f}\approx8$. The strong interplay observed between $N_c$ and $N_f$, i.e., $N_c$ anti-screens the strong interactions by strengthening the dynamical mass and quark-antiquark condensate, while $N_f$ screens the strong interaction by suppressing both the parameters. We further sketch the quantum chromodynamics (QCD) phase diagram at finite temperature $T$ and quark chemical potential $μ$ for various $N_c$ and $N_f$. At finite $T$ and $μ$, we observed that the critical number of colors $N^{c}_c$ enhances while the critical number of flavors $N^{c}_f$ suppresses as $T$ and $μ$ increases. Of course, the parameters $T$ and $μ$ produce the screening effect. Consequently, the critical temperature $T_c$, $μ_c$ and co-ordinates of the critical endpoint $(T^{E}_c,μ^{E}_c)$ in the QCD phase diagram enhances as $N_c$ increases while suppresses when $N_f$ increases. Our findings agree with the Lattice QCD and Schwinger-Dyson equations predictions.
description: 22 pages, 21 figures
Excitations of Quantum Many-Body Systems via Purified Ensembles: A Unitary-Coupled-Cluster-based Approach
Creators: name: Benavides-Riveros, Carlos L.
name: Chen, Lipeng
name: Schilling, Christian
name: Mantilla, Sebastián
name: Pittalis, Stefano
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: State-average calculations based on mixture of states are increasingly being exploited across chemistry and physics as versatile procedures for addressing excitations of quantum many-body systems. If not too many states should need to be addressed, calculations performed on individual states is also a common option. Here we show how the two approaches can be merged into one method, dealing with a generalized yet single pure state. Implications in electronic structure calculations are discussed and for quantum computations are pointed out.
description: 9 pages, additional calculation
Adiabatic Control of Decoherence-Free-Subspaces in an Open Collective System
Creators: name: Reilly, Jarrod T.
name: Jäger, Simon B.
name: Cooper, John
name: Holland, Murray J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We propose a method to adiabatically control an atomic ensemble using a decoherence-free subspace (DFS) within a dissipative cavity. We can engineer a specific eigenstate of the system's Lindblad jump operators by injecting a field into the cavity which deconstructively interferes with the emission amplitude of the ensemble. In contrast to previous adiabatic DFS proposals, our scheme creates a DFS in the presence of collective decoherence. We therefore have the ability to engineer states that have high multi-particle entanglements which may be exploited for quantum information science or metrology. We further demonstrate a more optimized driving scheme that utilizes the knowledge of possible diabatic evolution gained from the so-called adiabatic criteria. This allows us to evolve to a desired state with exceptionally high fidelity on a time scale that does not depend on the number of atoms in the ensemble. By engineering the DFS eigenstate adiabatically, our method allows for faster state preparation than previous schemes that rely on damping into a desired state solely using dissipation.
description: 15 pages and 8 Figures
School-Centered Neighborhood Revitalization in Baltimore
Creators: name: Bierbaum, Ariel H.
name: Butler, Alisha
name: O'Keefe, Erin
Publisher: name: University of Melbourne
Year: 2020
Subjects: Community planning

description: Despite the ways that schools are deeply tied to local conditions, we know less about how school change interacts with neighborhood change. This study asks: How does a major investment in school facilities materially affect lived experiences in neighborhoods? Using a case study approach, we present findings from a study of the policy apparatuses and impacts of Baltimore’s school closures, rehabilitation, and construction vis-à-vis patterns of uneven urban development and change in three Baltimore neighborhoods that have each seen new school construction as part of the 21st Century Schools Buildings Plan (21CSBP): a cross-agency investment of nearly US $1.1 billion to build or renovate 28 public schools in some of Baltimore’s most neglected neighborhoods. We argue that different agency stakeholders articulate competing operational theories of community development, which hinders collaborative efforts and creates obstacles to realizing deep impact of these school facilities investments on neighborhood outcomes.
Vertical Schools as Community Hubs
Creators: name: Matthews, Tony
name: NEWTON, CLARE
name: guaralda, mirko
name: Mayere, Severine
Publisher: name: University of Melbourne
Year: 2020
Subjects: Community planning

description: Vertical schools, relatively new to Australia, are responding to increasing student numbers in central suburbs with limited available land. School facilities and spaces for drama, music, exercise, socialising, craft, play and eating are typically located for potential community use. The analysis within this paper focuses on the traces of community connections that can be discovered from visual analysis of plans and occupied buildings. We compare emerging Australian vertical schools with European precedents. How and why are communities using school spaces? What community spaces do students use and what are their adjacencies with school uses? What are the private, privileged and public spaces of vertical schools? Which schools operate as gated communities and how do the more porous examples address the safety of children? We consider northern European examples where vertical schools have had a longer history. Examples include the influential Danish Hellerup School, Ørestad Gymnasium, Sydhavnen School, the Finnish Saunalahti School and the Swedish Barkaby School. This forms part of a larger analysis of vertical schools in Australia and overseas the authors are proposing to undertake.