cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A limit relation for entropy and channel capacity per unit cost
Creators: name: Csiszar, I.
name: Hiai, F.
name: Petz, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In a quantum mechanical model, Diosi, Feldmann and Kosloff arrived at a conjecture stating that the limit of the entropy of certain mixtures is the relative entropy as system size goes to infinity. The conjecture is proven in this paper for density matrices. The first proof is analytic and uses the quantum law of large numbers. The second one clarifies the relation to channel capacity per unit cost for classical-quantum channels. Both proofs lead to generalization of the conjecture.
description: LATEX file, 11 pages
Inaudible Systems, Sonic Users. Sound Interfaces and the Design of Audibility Layouts in Digital Games
Creators: name: Eduardo Harry, Luersen
Publisher: name: gamevironments
Year: 2021

description: The audible dimension of computer games is revealing of contemporary digital culture and the restructuring of the current media ecology. In this article, I observe some of these rearrangements through a tentative probing of the interfacing conditions of gaming established by their sound design projects. Through a media-archaeological approach, I observe how sonic space is organized, especially in the design of digital games in first and third-person perspective, taking part in the construction of playable audiovisual environments. I begin the article with a brief examination of different concepts of interface, and probe how the sound design of games may relate with previous audiovisual formats. Then, I analyze the particular ways in which computers and humans are interfaced through sound in order to estimate how user interfaces are representative of underlying reorganizations in contemporary sensibility and culture.
description: gamevironments, No. #14 (2021)
Interview with Stella Wisdom, Digital Curator at the British Library
Creators: name: Lissa, Holloway-Attaway
Publisher: name: gamevironments
Year: 2021

description: This interview with Stella Wisdom, Digital Curator at the British Library in the UK, focuses on illustrating the ways video game technologies have become inspirational for curatorial practice and public outreach activities that support new research on digital media. Wisdom discusses her role working with games and related games media and activities from the perspective of a cultural heritage organization working with the preservation and collection of complex digital artifacts. She identifies games as a significant kind of emerging format in which a traditional heritage organization, like the British Library, has become increasingly interested based on the complex cultures, stories and media that intersect with games and users. She shares her experience running games competitions and hosting activities for developers and players, including with children, demonstrating how games have become a key focal point for libraries, museums, and digital archiving practices helping to create new knowledge. Her close cooperation with video game developers (such as Inkle and Crytek) and with other creative industry partners illustrates the importance of understanding games as complex material and game social objects. The transhistorical connections among games and with other media forms, analog and digital, in the Library’s collections, provide inspiration for many interesting collaborative research projects. This work forms a foundation for others interested in researching, developing and preserving games as meaningful cultural artifacts for analysis.
description: gamevironments, No. #14 (2021)
Anomalous giant piezoresistance in AlAs 2D electrons with anti-dot lattices
Creators: name: Gunawan, O.
name: Gokmen, T.
name: Shkolnikov, Y. P.
name: De Poortere, E. P.
name: Shayegan, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: An AlAs two-dimensional electron system patterned with an anti-dot lattice exhibits a giant piezoresistance (GPR) effect, with a sign opposite to the piezoresistance observed in the unpatterned region. We trace the origin of this anomalous GPR to the non-uniform strain in the anti-dot lattice and the exclusion of electrons occupying the two conduction band valleys from different regions of the sample. This is analogous to the well-known giant magnetoresistance (GMR) effect, with valley playing the role of spin and strain the role of magnetic field.
description: 4 figures, submitted for publication
Conference Report: Workers’ Participation at Plant Level – An International Comparison: Historical Development, Contemporary Structures, Actor Constellations, Future Options (21–23 August 2013)
Creators: name: Abebrese, Joyce
name: Zajak, Sabrina
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Conference Report: Workers’ Participation at Plant Level – An International Comparison: Historical Development, Contemporary Structures, Actor Constellations, Future Options (21–23 August 2013)" of MTS 50 (2013).
description: Moving the Social, Vol 50 (2013): Essays on Social History and the History of Social Movements
Long-term dynamics of the solar system inner planets
Creators: name: Mogavero, Federico
name: Laskar, Jacques
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Chaotic Dynamics (nlin.CD)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Although the discovery of the chaotic motion of the inner planets in the solar system dates back to more than thirty years ago, the secular chaos of their orbits still dares more analytical analyses. Apart from the high-dimensional structure of the motion, this is probably related to the lack of an adequately simple dynamical model. Here, we consider a new secular dynamics for the inner planets, with the aim of retaining a fundamental set of interactions responsible for their chaotic behaviour, while being consistent with the predictions of the most precise orbital solutions currently available. We exploit the regularity in the secular motion of the outer planets, to predetermine a quasi-periodic solution for their orbits. This reduces the secular phase space to the degrees of freedom dominated by the inner planets. On top of that, the smallness of the inner planet masses and the absence of strong mean-motion resonances permits to restrict ourselves to first-order secular averaging. The resulting dynamics can be integrated numerically in a very efficient way through Gauss's method, while computer algebra allows for analytical inspection of planet interactions, once the Hamiltonian is truncated at a given total degree in eccentricities and inclinations. The new model matches very satisfactorily reference orbital solutions of the solar system over timescales shorter than or comparable to the Lyapunov time. It correctly reproduces the maximum Lyapunov exponent of the inner system and the statistics of the high eccentricities of Mercury over the next five billion years. The destabilizing role of the $g_1-g_5$ secular resonance also arises. A numerical experiment, consisting of a thousand orbital solutions over one hundred billion years, reveals the essential properties of the stochastic process driving the destabilization of the inner solar system and clarifies its current metastable state.
description: 25 pages, 10 figures. Accepted for publication in Astronomy & Astrophysics
ธาตุเจ้าเรือนและประเทศสมุฏฐานกับสภาวะสุขภาพของประชาชนพื้นที่ชายฝั่งทะเล จังหวัดตราด
Creators: name: พลอยชนก ปทุมานนท์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ธาตุเจ้าเรือน, ประเทศสมุฏฐาน, สภาวะสุขภาพ, พื้นที่ชายฝั่งทะเลจังหวัดตราด

description: 5, 33, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
Feminist Gamer Social Identities
Creators: name: Michael, Winters
name: James L., Williams
Publisher: name: gamevironments
Year: 2021

description: In 2020, the Electronic Software Association reported that women are just under half of all video game consumers. However, video games as an industry and communities of gamers are apparently resistant to the presence of women and especially feminists in these spaces. The events of #GamerGate serve as a stark reminder of the response to women and feminists in gaming spaces. We aim to contribute to a growing field of research by exploring why women who are feminists continue to identify as gamers in the face of such hostility. The first author interviewed 10 self-identified women who detailed their experiences as both gamers and feminists. We found that gamer and feminist identities impact each other in complex and surprising ways, leading to the creation of personal philosophies and social groups that support both social identities concurrently. We also discuss implications for future research.
description: gamevironments, No. #14 (2021)
Stable High Power deep-UV Enhancement Cavity in Ultra High Vacuum with Fluoride Coatings
Creators: name: Burkley, Zakary
name: Borges, Lucas de Sousa
name: Ohayon, Ben
name: Golovozin, Artem
name: Zhang, Jesse
name: Crivelli, Paolo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: High Energy Physics - Experiment (hep-ex)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate the superior performance of fluoride coated versus oxide coated mirrors in long term vacuum operation of a high power deep-ultraviolet enhancement cavity. In high vacuum ($10^{-8}$ mbar), the fluoride optics can maintain up to a record-high 10 w of stable intracavity power on one hour time scales, whereas for the oxide optics, we observe rapid degradation at lower intracavity powers with a rate that increases with power. After observing degradation in high vacuum, we can recover the fluoride and oxide optics with oxygen; however, this recovery process becomes ineffective after several applications. For fluoride coatings, we see that initial UV conditioning in an oxygen environment helps to improve the performances of the optics. In oxygen-rich environments from $\sim 10^{-4}$ mbar to 1 mbar, the fluoride optics can stably maintain up to 20 W of intracavity power on several-hour time scales whereas for the oxide optics there is immediate degradation with a rate that increases with decreasing oxygen pressure.
description: 13 pages, 7 figures
Inference on white dwarf binary systems using the first round Mock LISA Data Challenges data sets
Creators: name: Stroeer, Alexander
name: Veitch, John
name: Roever, Christian
name: Bloomer, Ed
name: Clark, James
name: Christensen, Nelson
name: Hendry, Martin
name: Messenger, Chris
name: Meyer, Renate
name: Pitkin, Matthew
name: Toher, Jennifer
name: Umstaetter, Richard
name: Vecchio, Alberto
name: Woan, Graham
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the analysis of selected single source data sets from the first round of the Mock LISA Data Challenges (MLDC) for white dwarf binaries. We implemented an end-to-end pipeline consisting of a grid-based coherent pre-processing unit for signal detection, and an automatic Markov Chain Monte Carlo post-processing unit for signal evaluation. We demonstrate that signal detection with our coherent approach is secure and accurate, and is increased in accuracy and supplemented with additional information on the signal parameters by our Markov Chain Monte Carlo approach. We also demonstrate that the Markov Chain Monte Carlo routine is additionally able to determine accurately the noise level in the frequency window of interest.
description: GWDAW-11 proceeding, submitted to CQG, 10 pages, 3 figures, 1 table; revised values in table
A PRELIMINARY LIST OF RARE OR ENDANGERED IRIDACEAE SPECIES
Creators: name: APPENDIX, .
Publisher: name: Annali di Botanica
Year: 2019

description: At this meeting the importance of focussing on rare and endangered Iridaceae species in each country became evident. A complete check list of the conservation status of rare and endangered Iridaceae species is not yet estabilished. Here we present (Appendix) the list of the World Conservation Monitoring Centre (WCMC)* for rare and endangered Iridaceae, according to the IUCN categories.
description: Annali di Botanica, Vol 58 (2000)
ดงภูดิน : เรื่องเล่าศักดิ์สิทธิ์กับปฏิบัติการสร้าง ความหมายว่าด้วยสิทธิชุมชน
Creators: name: ปฐม หงษ์สุวรรณ
Publisher: name: Center for Research on Plurality in the Mekong Region (CERP)
Year: 2014
Subjects: เรื่องเล่าศักดิ์สิทธิ์, ปฏิบัติการทางสังคม, สิทธิชุมชน, พื้นที่ป่าอนุรักษ์, ดงภูดิน

description: 3, 10, Journal of Mekong Societies
สมบัติของไบโอออยล์และถ่านชาร์ที่ได้จากการไพโรไลซีสแบบเร็วของใบอ้อย
Creators: name: เกยูร ดวงอุปมา
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: การไพโรไลซิสแบบเร็ว, ชีวมวล, ถ่านชาร์, ใบอ้อย, ไอโอออยล์

description: 4, 32, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Interview with Marcus Carter on Children’s Play and Games Studies Discourse
Creators: name: Antonija, Cavcic
Publisher: name: gamevironments
Year: 2021

description: In this interview, Dr. Marcus Carter, co-director of the Socio-Tech Futures Lab and Senior Lecturer in Digital Cultures at The University of Sydney, talks about his research on children’s play, his views towards discourse on gaming addiction, and games studies discourse.
description: gamevironments, No. #14 (2021)
HOMMAGE TO GIULIANO MONTELUCCI (1899-1983)
Creators: name: ANZALONE, B.
name: BLASI, C.
name: LATTANZI, E.
name: LUCCHESE, F.
name: MARCHI, P.
name: VALENZIANO, S.
name: PIGNATTI, S.
name: DI PIETRO, R.
name: FOLLIERI, M.
name: GIARDINI, M.
Publisher: name: Annali di Botanica
Year: 2019

description: Hommage to Giuliano Montelucci
description: Annali di Botanica, Vol 4 (2004)
SIGNet model release
Creators: name: Das, P.
name: Gevers, Theo
name: Karaoglu, Sezer
Publisher: name: University of Amsterdam / Amsterdam University of Applied Sciences
Year: 2022
Subjects: Information and Computing Sciences

description: Trained sota model release for our paper titled, "SIGNet: Intrinsic Image Decomposition by a Semantic and Invariant Gradient Driven Network for Indoor Scenes". Accepted and presented at the CV4Metaverse workshop at ECCV 2022, Tel Aviv, Israel.
Holy Ocarina! Exploring Religion in/of/through The Legend of Zelda Series
Creators: name: Johnathan, Sanders
Publisher: name: gamevironments
Year: 2021

description: Initially a presentation by a panel of scholars at Penny Arcade Expo (PAX East) 2020, the Holy Ocarina! Project is an ongoing collaborative project that aims to act as a resource and an inspiration for those seeking to write about the intersection of The Legend of Zelda series (1987-2017) and religion. At PAX, the panelists conducted an audience-directed discussion surrounding the fictional mythology and apparent religious practices within the narrative worlds of the Zelda series (Religion of Zelda), the influence of real-world religious symbols, stories, and ideologies on the series’ plot and mechanics (Religion in Zelda), and the ways in which fan engagement with canonical and non-canonical elements of the series resonates with the practices of religious communities (Zelda as Religion). This research report aims to present an overview of the topics discussed by the panelists before, during, and after the PAX panel; compile many of the academic, ludic, and popular resources on which these discussions were based; and present provocative claims or lines of inquiry that can serve as a foundation for future researchers to pursue.
description: gamevironments, No. #14 (2021)
Ghosts, Spooks, and Martyrs. Historical Hauntings in Tom Clancy’s Ghost Recon Wildlands
Creators: name: Megan, Ward
Publisher: name: gamevironments
Year: 2021

description: In 1985, a United States undercover Drug Enforcement Administration (DEA) agent, Enrique Kiki Camarena, was abducted, tortured, and murdered in Guadalajara, Mexico by an alleged drug cartel. The ensuing international murder investigation saw breaches in extradition procedures, accusations that Mexican officials had destroyed key evidence, and allegations that the Central Intelligence Agency (CIA) had targeted Camarena to cover evidence of CIA covert involvement in Nicaragua. Camarena’s death and subsequent martyrdom took form in national anti-drug campaigns, DEA awards, and the drug war foreign policy. More recently in 2017, French video game company Ubisoft released a massively popular video game, Tom Clancy’s Ghost Recon Wildlands (2017), which fictionalizes Camarena’s death and draws its players into a history of the United States drug war, complete with CIA Spooks, agrarian militias, and Mexican drug lords. In conversation with historical epistemologies, game studies, and with close attention to the obscured record of covert operation, this article investigates how cultural artifacts, specifically interactive ones, not only create history, but place their audience within in a history only now freshly unearthed and resurrected. Camarena’s many resurrections in popular politics and media are salient examples of the participatory nature of history and the narratives we use to place ourselves within murky pasts.
description: gamevironments, No. #14 (2021)
Graph Pooling via Coarsened Graph Infomax
Creators: name: Pang, Yunsheng
name: Zhao, Yunxiang
name: Li, Dongsheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Graph pooling that summaries the information in a large graph into a compact form is essential in hierarchical graph representation learning. Existing graph pooling methods either suffer from high computational complexity or cannot capture the global dependencies between graphs before and after pooling. To address the problems of existing graph pooling methods, we propose Coarsened Graph Infomax Pooling (CGIPool) that maximizes the mutual information between the input and the coarsened graph of each pooling layer to preserve graph-level dependencies. To achieve mutual information neural maximization, we apply contrastive learning and propose a self-attention-based algorithm for learning positive and negative samples. Extensive experimental results on seven datasets illustrate the superiority of CGIPool comparing to the state-of-the-art methods.
A Global Approach to the Theory of Special Finsler Manifolds
Creators: name: Youssef, Nabil L.
name: Abed, S. H.
name: Soleiman, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53C60, 53B40

description: The aim of the present paper is to provide a global presentation of the theory of special Finsler manifolds. We introduce and investigate globally (or intrinsically, free from local coordinates) many of the most important and most commonly used special Finsler manifolds: locally Minkowskian, Berwald, Landesberg, general Landesberg, $P$-reducible, $C$-reducible, semi-$C$-reducible, quasi-$C$-reducible, $P^{*}$-Finsler, $C^{h}$-recurrent, $C^{v}$-recurrent, $C^{0}$-recurrent, $S^{v}$-recurrent, $S^{v}$-recurrent of the second order, $C_{2}$-like, $S_{3}$-like, $S_{4}$-like, $P_{2}$-like, $R_{3}$-like, $P$-symmetric, $h$-isotropic, of scalar curvature, of constant curvature, of $p$-scalar curvature, of $s$-$ps$-curvature. The global definitions of these special Finsler manifolds are introduced. Various relationships between the different types of the considered special Finsler manifolds are found. Many local results, known in the literature, are proved globally and several new results are obtained. As a by-product, interesting identities and properties concerning the torsion tensor fields and the curvature tensor fields are deduced. Although our investigation is entirely global, we provide; for comparison reasons, an appendix presenting a local counterpart of our global approach and the local definitions of the special Finsler spaces considered.
description: 32 pages, LaTeX file, Abstract and Introduction modified. Journal-ref removed (it was entered by mistake)
Relaxed and alert : patterns of T-wave amplitude and heart rate in a REST environment
Creators: name: Steel, Gary Daniel
Publisher: name: University of British Columbia
Year: 2010

description: Thirty-six subjects participated in a restricted environmental stimulation technique (REST) study investigating the psychophysiological effects of flotation. Subjects floated for one hour under differing expectations regarding duration of a float session and the physical properties of the environment that was to follow. EMG and two measures of cardiac activity (T-wave amplitude and heart rate) were recorded for the entire session; however, EMG was dropped as a variable due to an excessive noise-to-signal ratio. It was found that neither durational expectations nor beliefs about a dissimilar environment had any significant effects on the patterns of response of the two remaining variables. Subjects did show a significant within-subjects trend when considered as a whole group. Further research in the area of cardiovascular and muscle activity patterns in the flotation tank is suggested.
Potassium intercalation in graphite: A van der Waals density-functional study
Creators: name: Ziambaras, Eleni
name: Kleis, Jesper
name: Schroder, Elsebeth
name: Hyldgaard, Per
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Potassium intercalation in graphite is investigated by first-principles theory. The bonding in the potassium-graphite compound is reasonably well accounted for by traditional semilocal density functional theory (DFT) calculations. However, to investigate the intercalate formation energy from pure potassium atoms and graphite requires use of a description of the graphite interlayer binding and thus a consistent account of the nonlocal dispersive interactions. This is included seamlessly with ordinary DFT by a van der Waals density functional (vdW-DF) approach [Phys. Rev. Lett. 92, 246401 (2004)]. The use of the vdW-DF is found to stabilize the graphite crystal, with crystal parameters in fair agreement with experiments. For graphite and potassium-intercalated graphite structural parameters such as binding separation, layer binding energy, formation energy, and bulk modulus are reported. Also the adsorption and sub-surface potassium absorption energies are reported. The vdW-DF description, compared with the traditional semilocal approach, is found to weakly soften the elastic response.
description: 10 pages, 5 figures
Full EMT Simulation of Large Power Systems
Creators: J. BÈlanger
Publisher: name: IEEE
Year: 2023

Transient stability (TS) simulation programs have been successfully used by power engineering community for over a half century. Full EMT simulation is becoming a necessary alternative solution when many power electronics apparatus are connected to power systems. The models of the power electronics equipment are well developed in EMT simulation programs. The challenge is the computation speed to deal with large systems. Historically EMT simulation is only used for smaller power systems because it uses smaller time step and more detail models, therefore its computation time is much longer compared to TS simulation. Whether they can be used to process thousands of contingencies for large power system with 10s thousand buses remain to be a huge challenge. A taskforce was formed to address the needs of EMT simulation of large power systems. We are proposing this panel to share the new advancements in this area.
Presentations in this panel session:
- Large transmission, HVDC grid and Distribution system real-time and accelerated simulation benchmarks for DER integration (23PESGM0901)
Transient stability (TS) simulation programs have been successfully used by power engineering community for over a half century. Full EMT simulation is becoming a necessary alternative solution when many power electronics apparatus are connected to power systems. The models of the power electronics equipment are well developed in EMT simulation programs. The challenge is the computation speed to deal with large systems. Historically EMT simulation is only used for smaller power systems because it uses smaller time step and more detail models, therefore its computation time is much longer compared to TS simulation. Whether they can be used to process thousands of contingencies for large power system with 10s thousand buses remain to be a huge challenge. A taskforce was formed to address the needs of EMT simulation of large power systems. We are proposing this panel to share the new advancements in this area.
Presentations in this panel session:
- Large transmission, HVDC grid and Distribution system real-time and accelerated simulation benchmarks for DER integration (23PESGM0901)
Temperature-dependent photoemission spectral weight transfer and chemical potential shift in Pr$_{1-x}$Ca$_x$MnO$_3$ : Implications for charge density modulation
Creators: name: Ebata, K.
name: Hashimoto, M.
name: Tanaka, K.
name: Fujimori, A.
name: Tomioka, Y.
name: Tokura, Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have studied the temperature dependence of the photoemission spectra of Pr$_{1-x}$Ca$_x$MnO$_3$ (PCMO) with $x=0.25$, 0.3 and 0.5. For $x=0.3$ and 0.5, we observed a gap in the low-temperature CE-type charge-ordered (CO) phase and a pseudogap with a finite intensity at the Fermi level ($E_F$) in the high-temperature paramagnetic insulating (PI) phase. Within the CO phase, the spectral intensity near $E_F$ gradually increased with temperature. These observations are consistent with the results of Monte Carlo simulations on a model including charge ordering and ferromagnetic fluctuations [H. Aliaga {\it et al.} Phys. Rev. B {\bf 68}, 104405 (2003)]. For $x=0.25$, on the other hand, little temperature dependence was observed within the low-temperature ferromagnetic insulating (FI) phase and the intensity at $E_F$ remained low in the high-temperature PI phase. We attribute the difference in the temperature dependence near $E_F$ between the CO and FI phases to the different correlation lengths of orbital order between both phases. Furthermore, we observed a chemical potential shift with temperature due to the opening of the gap in the FI and CO phases. The doping dependent chemical potential shift was recovered at low temperatures, corresponding to the disappearance of the doping dependent change of the modulation wave vector. Spectral weight transfer with hole concentration was clearly observed at high temperatures but was suppressed at low temperatures. We attribute this observation to the fixed periodicity with hole doping in PCMO at low temperatures.
description: 5pages, 7figures
Using Action Space Clustering to Constrain the Accretion History of Milky Way like Galaxies
Creators: name: Wu, Youjia
name: Valluri, Monica
name: Panithanpaisal, Nondh
name: Sanderson, Robyn E.
name: Freese, Katherine
name: Wetzel, Andrew
name: Sharma, Sanjib
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In the currently favored cosmological paradigm galaxies form hierarchically through the accretion of numerous satellite galaxies. Since the satellites are much less massive than the host halo, they occupy a small fraction of the volume in action space defined by the potential of the host halo. Since actions are conserved when the potential of the host halo changes adiabatically, stars from an accreted satellite are expected to remain clustered in action space as the host halo evolves. In this paper, we identify accreted satellites in three Milky Way like disk galaxies from the cosmological baryonic FIRE-2 simulations by tracking satellite galaxies through simulation snapshots. We then try to recover these satellites by applying the cluster analysis algorithm Enlink to the orbital actions of accreted star particles in the present-day snapshot. We define several metrics to quantify the success of the clustering algorithm and use these metrics to identify well-recovered and poorly-recovered satellites. We plot these satellites in the infall time-progenitor mass (or stellar mass) space, and determine the boundaries between the well-recovered and poorly-recovered satellites in these two spaces with classification tree method. The groups found by Enlink are more likely to correspond to a real satellite if they have high significance, a quantity assigned by Enlink. Since cosmological simulations predict that most stellar halos have a population of insitu stars, we test the ability of Enlink to recover satellites when the sample is contaminated by 10-50% of insitu star particles, and show that most of the satellites well-recovered by Enlink in the absence of insitu stars, stay well-recovered even with 50% contamination. We thus expect that, in the future, cluster analysis in action space will be useful in upcoming data sets (e.g. Gaia) for identifying accreted satellites in the Milky Way.
description: 16 pages, 9 figures, fixed some typos and added two references
Piercing the Fog of War: Measuring Russian Public Opinion via Online Search Data
Creators: name: Foa, Roberto Stefan
name: Nezi, Roula
Publisher: name: University of Cambridge
Year: 2023
Subjects: Public Opinion
Russia
Google Trends
Web Search
War in Ukraine

description: In recent decades, public opinion researchers and policymakers have gained valuable insight into the attitudes and opinions of ordinary Russians thanks to regular tracking surveys conducted by polling organisations such as the Levada Center, the Russian Public Opinion Research Center (VCIOM), and FOM. However, since the onset of the war in Ukraine in February 2022, it has become increasingly difficult to attain reliable measures of public opinion in Russia due to growing problems of survey response bias, self-censorship, and doubts concerning the methodology of official state survey organisations. To overcome these difficulties, this paper presents a novel measure using online search data from Google and Yandex to proxy for cognitive mental states in the general population. Comparing such measures to historical and recent surveys, our findings suggest that in reality Russia’s public mood is near its lowest level for a decade, while the legitimacy of its regime has been undermined by failure in war. Our results illustrate how political scientists can use online data to shine light on public opinion in difficult-to-survey contexts, and help to assess the dynamics of regime support in non-democratic countries.
Multi-agent decision support in local electricity markets
Creators: B. Bhatti
Publisher: name: IEEE
Year: 2023

The large-scale emergence of renewable energy sources and the consequent empowerment of consumers as a central and active solution to deal with the generation variability are paving the path towards the worldwide emergence of local electricity markets. The effective implementation of local markets required, however, a significant change from traditional electricity transaction models. Consequently, exploring new models, their interaction with current wholesale and retail market structures, and analyzing their potential impact is essential. Multi-agent-based systems are promising solutions to address such dynamic and complex environments, being able to represent the different involved players and their interactions in a straightforward and flexible manner. This panel aims at stimulating the discussion on the importance of current and future agent-based solutions to model, study, and provide decision support to the different entities involved in local electricity market design and actual negotiation.
Presentations in this panel session:
- Impacts of Energy Flexibility in Transactive Energy Systems with Large Scale Renewable Generation (23PESGM4074)
The large-scale emergence of renewable energy sources and the consequent empowerment of consumers as a central and active solution to deal with the generation variability are paving the path towards the worldwide emergence of local electricity markets. The effective implementation of local markets required, however, a significant change from traditional electricity transaction models. Consequently, exploring new models, their interaction with current wholesale and retail market structures, and analyzing their potential impact is essential. Multi-agent-based systems are promising solutions to address such dynamic and complex environments, being able to represent the different involved players and their interactions in a straightforward and flexible manner. This panel aims at stimulating the discussion on the importance of current and future agent-based solutions to model, study, and provide decision support to the different entities involved in local electricity market design and actual negotiation.
Presentations in this panel session:
- Impacts of Energy Flexibility in Transactive Energy Systems with Large Scale Renewable Generation (23PESGM4074)
Phase diagram of Gaussian-core nematics
Creators: name: Prestipino, Santi
name: Saija, Franz
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study a simple model of a nematic liquid crystal made of parallel ellipsoidal particles interacting via a repulsive Gaussian law. After identifying the relevant solid phases of the system through a careful zero-temperature scrutiny of as many as eleven candidate crystal structures, we determine the melting temperature for various pressure values, also with the help of exact free energy calculations. Among the prominent features of this model are pressure-driven reentrant melting and the stabilization of a columnar phase for intermediate temperatures.
description: 15 pages, 1 table, 10 figures, submitted on J. Chem. Phys.
Developments in Ocean Wave and Marine Renewable Energy
Creators: R. Coe
J. Prudell
Publisher: name: IEEE
Year: 2023

This panel session will cover the latest developments in marine renewable energy, including simulation, lab experimental testing, and open water testing, from a combination of university and private marine energy researchers.
Presentations in this panel session:
- Valuation of Wave Energy on the Electrical Grid (23PESGM1216)
- Incorporating EV components into AOPS (Autonomous Offshore Power Systems) Designs(23PESGM1217)
This panel session will cover the latest developments in marine renewable energy, including simulation, lab experimental testing, and open water testing, from a combination of university and private marine energy researchers.
Presentations in this panel session:
- Valuation of Wave Energy on the Electrical Grid (23PESGM1216)
- Incorporating EV components into AOPS (Autonomous Offshore Power Systems) Designs(23PESGM1217)
Additional file 5 of Australian Injury Comorbidity Indices (AICIs) to predict burden and readmission among hospital-admitted injury patients
Creators: name: Fernando, Dasamal Tharanga
name: Berecki-Gisolf, Janneke
name: Newstead, Stuart
name: Ansari, Zahid
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: Additional file 5: Appendix A1.4. ROC curves for all-cause 30-day readmissions (age > = 15 years).
On the conformal transformation between two anisotropic fluid spacetimes
Creators: name: Kopiński, Jarosław
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the necessary conditions for the two spacetimes, which are solutions to the Einstein field equations with an anisotropic matter source, to be related to each other by means of a conformal transformation. As a result, we obtain that if one of such spacetimes is a generalization of the Robertson-Walker solution with vanishing acceleration and vorticity, then the other one has to be in this class as well, i.e. the conformal factor will be a constant function on the hypersurfaces orthogonal to the fluid flow lines. The evolution equation for this function appears naturally as a direct consequence of the conformal transformation of the Ricci tensor.
description: 11 pages
High-spin to low-spin and orbital polarization transitions in multiorbital Mott systems
Creators: name: Werner, Philipp
name: Millis, Andrew J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the interplay of crystal field splitting and Hund coupling in a two-orbital model which captures the essential physics of systems with two electrons or holes in the e_g shell. We use single site dynamical mean field theory with a recently developed impurity solver which is able to access strong couplings and low temperatures. The fillings of the orbitals and the location of phase boundaries are computed as a function of Coulomb repulsion, exchange coupling and crystal field splitting. We find that the Hund coupling can drive the system into a novel Mott insulating phase with vanishing orbital susceptibility. Away from half-filling, the crystal field splitting can induce an orbital selective Mott state.
description: Published version
New Earth. Fantasy Pantheon Inspired by Afro-Brazilian Religion
Creators: name: Eliane, Bettocchi
Publisher: name: gamevironments
Year: 2021

description: In this research report I describe how I used a decolonial framework to design a pantheon, the faith system and temples based on Afro-Brazilian religions known as Candomblé and Umbanda for a fantasy setting of the role-playing game New Earth (2013), in which the oppressed defeat the colonizers and establish a culture based on their mixed ancestries.
description: gamevironments, No. #14 (2021)
Microgrid Applications and Demonstrations: Lessons Learned
Creators: A. Sharma
S.C. Srivastava
N. Schulz
J. Hieb
Publisher: name: IEEE
Year: 2023

Pilot demonstration of advanced technologies for Microgrid using distributed energy resources is key to meet the clean energy goals around the world. Diverse scale implementation approaches are needed to adopt same solutions at different scales like rural, semi-urban, urban and army-base. However, microgrid operators and utility planners face unique and novel challenges when designing effective projects to realize multifold potential benefits. Experiences gained from deployed projects provide guidelines to industry and electric utility to better understand and extend the methods and best practices. Panelists with first hand microgrids design and implementation experience will discuss what challenges they encountered through the projectís design, construction, and operation and how their teams addressed those challenges to make the pilot demonstration from research to field deployment phase for expected improved performance.
Presentations in this panel session:
- An interconnected village microgrid pilot of India: a case study (23PESGM2777)
- A semi-urban campus microgrid demonstration (23PESGM2779)
- Utility-scale microgrid management with electric vehicle charging stations and data center load (23PESGM2780)
Pilot demonstration of advanced technologies for Microgrid using distributed energy resources is key to meet the clean energy goals around the world. Diverse scale implementation approaches are needed to adopt same solutions at different scales like rural, semi-urban, urban and army-base. However, microgrid operators and utility planners face unique and novel challenges when designing effective projects to realize multifold potential benefits. Experiences gained from deployed projects provide guidelines to industry and electric utility to better understand and extend the methods and best practices. Panelists with first hand microgrids design and implementation experience will discuss what challenges they encountered through the projectís design, construction, and operation and how their teams addressed those challenges to make the pilot demonstration from research to field deployment phase for expected improved performance.
Presentations in this panel session:
- An interconnected village microgrid pilot of India: a case study (23PESGM2777)
- A semi-urban campus microgrid demonstration (23PESGM2779)
- Utility-scale microgrid management with electric vehicle charging stations and data center load (23PESGM2780)
History Games for Boys? Gender, Genre and the Self-Perceived Impact of Historical Games on Undergraduate Historians
Creators: name: Houghton, Robert
Publisher: name: gamevironments
Year: 2021

description: Historical games have a demonstrable impact on the development of their players’ formative understanding of history and it is increasingly clear that these media influence perceptions of history in the undergraduate classroom. This article considers the interactions of game genre and player gender identity as determining factors for the impact of historical games on undergraduate perceptions of history through a survey (n=172) conducted at the University of Winchester. The article highlights correlations between maleness, strategy and action games, and high levels of reported influence of games on historical understanding. On this basis, it argues that genre of game is the main driver for influence over historical perceptions and that gender identity correlates indirectly with this influence.
description: gamevironments, No. #14 (2021)
Ethnicity, expectations, and attributions : a theoretical review
Creators: name: Takagi, Junko
Publisher: name: University of British Columbia
Year: 2010

description: This thesis examines the effect of ethnicity on assessments of achievement outcomes, and presents a theoretical explanation using Foschi's reformulation. The reformulation integrates aspects of attribution theory and status generalization theory. It proposes that when a higher status performer and a lower status performer are equally successful at a task, the success of the former will tend to be attributed to ability more than the success of the latter. Also, when the two performers are equally unsuccessful at a task, the performance of the lower status person will tend to be attributed to lack of ability more than the performance of the higher status person. The propositions are tested for ethnicity by collecting evidence from attribution studies dealing with ethnicity and assessment of performance outcomes. The findings indicate that there is substantial support for the propositions. Since these have not been directly tested, an experiment is proposed. In the final section of the thesis a standardized experimental format such as the one used in expectation states research is presented.
Photon Spheres and Spherical Accretion Image of a Hairy Black Hole
Creators: name: Gan, Qingyu
name: Wang, Peng
name: Wu, Houwen
name: Yang, Haitang
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we first consider null geodesics of a class of charged, spherical and asymptotically flat hairy black holes in an Einstein-Maxwell-scalar theory with a non-minimal coupling for the scalar and electromagnetic fields. Remarkably, we show that there are two unstable circular orbits for a photon in a certain parameter regime, corresponding to two unstable photon spheres of different sizes outside the event horizon. To illustrate the optical appearance of photon spheres, we then consider a simple spherical model of optically thin accretion on the hairy black hole, and obtain the accretion image seen by a distant observer. In the single photon sphere case, only one bright ring appears in the image, and is identified as the edge of the black hole shadow. Whereas in the case with two photon spheres, there can be two concentric bright rings of different radii in the image, and the smaller one serves as the boundary of the shadow, whose radius goes to zero at the critical charge.
description: v1: 13 pages, 6 figures; v2: 13 pages, 6 figures, references added
Challenges and Opportunities Toward 100% Clean Energy
Creators: A. Burdick
D. Schoenwald
R. Schulte
S. Li
Publisher: name: IEEE
Year: 2023

With the rapid climate change and its harmful and destructive impacts to the human, electric utilities, states, countries, corporations, and other entities are setting 100% clean electricity and 100% clean energy goals to address the emerging challenges resulted from the climate change. 100% clean energy focuses on getting all energy from clean and renewable energy resources. However, shifting the global primary energy supply to clean and renewable energy sources requires a transition and significant effort of the energy industry, since most of today's energy is derived from traditional fossil fuels. This panel brings industry and academic researchers together to discuss the challenges and opportunities for the transition toward to 100% clean energy. These include issues related to affordability, dependability, reliability, resilience, etc. of electric power systems associated with the transition.
Presentations in this panel session:
- Reliability of Deeply Decarbonized Power Systems (23PESGM0825)
- Expressing Grid Resilience with Dynamic Stability Metrics (23PESGM0826)
- Power from the Prairie Interregional HVDC line Concept Development Study (23PESGM0827)
- Challenges for Renewable Plant and Grid Integration (23PESGM0828)
With the rapid climate change and its harmful and destructive impacts to the human, electric utilities, states, countries, corporations, and other entities are setting 100% clean electricity and 100% clean energy goals to address the emerging challenges resulted from the climate change. 100% clean energy focuses on getting all energy from clean and renewable energy resources. However, shifting the global primary energy supply to clean and renewable energy sources requires a transition and significant effort of the energy industry, since most of today's energy is derived from traditional fossil fuels. This panel brings industry and academic researchers together to discuss the challenges and opportunities for the transition toward to 100% clean energy. These include issues related to affordability, dependability, reliability, resilience, etc. of electric power systems associated with the transition.
Presentations in this panel session:
- Reliability of Deeply Decarbonized Power Systems (23PESGM0825)
- Expressing Grid Resilience with Dynamic Stability Metrics (23PESGM0826)
- Power from the Prairie Interregional HVDC line Concept Development Study (23PESGM0827)
- Challenges for Renewable Plant and Grid Integration (23PESGM0828)