cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Oil Sands Tailings Consolidation Employing Capillary Suction or Core-Shell Coagulant
Creators: name: Lashkari, Reza
Publisher: name: Schulich School of Engineering
Year: 2025
Subjects: subject: MFT
subject: coagulation
subject: reclamation
subject: calcium hydroxide
subject: capillary action
subject: dewatering
subject: oil sands
subject: tailings
subject: Engineering--Chemical

description: The Canadian oil sands bitumen extraction process produces a huge volume of tailings. Tailings are a mixture of water, fine particles, and residual hydrocarbons. Tailings gradually stratify into layers, with the middle layer being a stable gel-like suspension of fine clay particles, water, and bitumen known as mature fine tailings (MFT). MFT poses a considerable environmental concern, including air pollution, groundwater contamination, potential for tailings pond failure, as well as extensive land footprint. Additionally, the slow settling of MFT particles adversely affects dewatering and land reclamation, raising liability problems for operators. This work attempts to provide options to MFT reclamation using two approaches. The first approach uses the natural phenomenon of capillary action with porous surfaces to increase evaporation. The selective absorption of water into the porous substrate increases the surface area for evaporation. A filter paper substrate enhanced evaporation rates by ~ 35%, leading to a decrease in reclamation time by 33–55% relative to a non-porous surface. A mathematical model was developed to fit the evaporation rates coupling thermodynamic and mass transport principles. In the second approach, a novel core-shell coagulant (CSCC) consisting of 85 wt% Ca(OH)2 core and a 15 wt% CaCO3 shell, was assessed for its efficacy in enhancing the quality of recovered water and improving the geomechanical stability of the reclaimed MFT. At its optimum dose (4330 ppm) CSCC surpassed the performance of the optimum dose of the conventional Ca(OH)2 coagulant (3250 ppm). CSCC achieved 7% and 70% lower Na+ and Ca2+ concentrations, respectively, with 12% lower suspended solids. Therefore, the detrimental effects of these ions and suspended solids on the oil recovery and the processing equipment is reduced. At higher dose (5400 ppm), CSCC exhibited enhanced efficiency, decreasing Na+ and Ca2+ concentrations by 18% and 56%, respectively, and lowering suspended solid content by 60%. Characterization methods, such as SEM, XRD, and TGA, validated the development of pozzolanic products in the solid phase separated from the MFT after 90 days of aging. The controlled release of Ca(OH)2 from the CaCO3 shell promoted prolonged pozzolanic reactions, hence enhancing long-term reclamation stability.
Model Order Reduction for Deforming Domain Problems in a Time-Continuous Space-Time Setting
Creators: name: Key, Fabian
name: von Danwitz, Max
name: Ballarin, Francesco
name: Rozza, Gianluigi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In the context of simulation-based methods, multiple challenges arise, two of which are considered in this work. As a first challenge, problems including time-dependent phenomena with complex domain deformations, potentially even with changes in the domain topology, need to be tackled appropriately. The second challenge arises when computational resources and the time for evaluating the model become critical in so-called many query scenarios for parametric problems. For example, these problems occur in optimization, uncertainty quantification (UQ), or automatic control and using highly resolved full-order models (FOMs) may become impractical. To address both types of complexity, we present a novel projection-based model order reduction (MOR) approach for deforming domain problems that takes advantage of the time-continuous space-time formulation. We apply it to two examples that are relevant for engineering or biomedical applications and conduct an error and performance analysis. In both cases, we are able to drastically reduce the computational expense for a model evaluation and, at the same time, to maintain an adequate accuracy level. All in all, this work indicates the effectiveness of the presented MOR approach for deforming domain problems taking advantage of a time-continuous space-time setting.
Certification of the proximal gradient method under fixed-point arithmetic for box-constrained QP problems
Creators: name: Krupa, Pablo
name: Inverso, Omar
name: Tribastone, Mirco
name: Bemporad, Alberto
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In safety-critical applications that rely on the solution of an optimization problem, the certification of the optimization algorithm is of vital importance. Certification and suboptimality results are available for a wide range of optimization algorithms. However, a typical underlying assumption is that the operations performed by the algorithm are exact, i.e., that there is no numerical error during the mathematical operations, which is hardly a valid assumption in a real hardware implementation. This is particularly true in the case of fixed-point hardware, where computational inaccuracies are not uncommon. This article presents a certification procedure for the proximal gradient method for box-constrained QP problems implemented in fixed-point arithmetic. The procedure provides a method to select the minimal fractional precision required to obtain a certain suboptimality bound, indicating the maximum number of iterations of the optimization method required to obtain it. The procedure makes use of formal verification methods to provide arbitrarily tight bounds on the suboptimality guarantee. We apply the proposed certification procedure on the implementation of a non-trivial model predictive controller on 32-bit fixed-point hardware.
description: 8 pages
The XMM Cluster Survey: Predicted overlap with the Planck Cluster Catalogue
Creators: name: Viana, Pedro T. P.
name: da Silva, António
name: Ramos, Elsa P. R. G.
name: Liddle, Andrew R.
name: Lloyd-Davies, E. J.
name: Romer, A. Kathy
name: Kay, Scott T.
name: Collins, Chris A.
name: Hilton, Matt
name: Hosmer, Mark
name: Hoyle, Ben
name: Mehrtens, Nicola
name: Miller, Christopher J.
name: Sahlén, Martin
name: Stanford, S. Adam
name: Stott, John P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a list of 15 clusters of galaxies, serendipitously detected by the XMM Cluster Survey (XCS), that have a high probability of detection by the Planck satellite. Three of them already appear in the Planck Early Sunyaev-Zel'dovich (ESZ) catalogue. The estimation of the Planck detection probability assumes the flat Lambda cold dark matter (LambdaCDM) cosmology most compatible with 7-year Wilkinson Microwave Anisotropy Probe (WMAP7) data. It takes into account the XCS selection function and Planck sensitivity, as well as the covariance of the cluster X-ray luminosity, temperature, and integrated comptonization parameter, as a function of cluster mass and redshift, determined by the Millennium Gas Simulations. We also characterize the properties of the galaxy clusters in the final data release of the XCS that we expect Planck will have detected by the end of its extended mission. Finally, we briefly discuss possible joint applications of the XCS and Planck data.
description: Closely matches the version accepted for publication by MNRAS, 7 pages, 3 figures. The XCS-DR1 catalogue, together with optical and X-ray (colour-composite and greyscale) images for each cluster, is publicly available from http://xcs-home.org/datareleases
MPEC 2025-H97 : 2025 HT1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 HT1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
BENCHMARKING IN-MEMORY VS. DISK-BASED DATABASES: A TRANSACTION PROCESSING PERFORMANCE COUNCIL (TPC) ANALYSIS
Creators: name: Ahmad bin, Abdullah bin Hassan
name: Nurul Amani, binti Mohd Aziz
Publisher: name: AMERICAN SERIAL
Year: 2024
Subjects: online transactional processing
database performance
concurrent users
resource locking
relational database management systems

description: Efficient online transactional processing (OLTP) applications hinge upon meticulous planning and optimization of database performance and throughput. The paramount objective for any database system deployed in this context is to minimize response times for application-specific structured query language (SQL) queries. This necessitates a strategic approach to address the challenges posed by concurrent user activity, which often leads to congestion and resource locking within the system. As highlighted by Kaspi and Venkatraman (2014) and TPC (2010), achieving optimal performance requires not only finely-tuned transactions but also robust features within relational database management systems (RDBMS) to manage these demands effectively. This study delves into the complexities of optimizing OLTP applications, emphasizing the critical importance of proactive planning and sophisticated database design to ensure seamless performance amidst concurrent user interactions. By synthesizing insights from seminal works by Faleiro and Abadi (2011) and leveraging established methodologies, the study offers actionable recommendations for enhancing the efficiency and scalability of OLTP-based systems. Key considerations include transaction tuning, resource allocation, and the integration of advanced features within RDBMS to mitigate congestion and streamline operations. By elucidating the multifaceted dynamics of OLTP optimization, this study contributes to a deeper understanding of the challenges and opportunities inherent in deploying transactional applications in online environments
Misinformation as Material: Towards the use of cognitive psychology as a research tool for artists
Creators: name: Hopwood, Alasdair
Publisher: name: University of Westminster
Year: 2023

description: “There is an elementary school in Japan with a course in cognitive psychology. In this country you can find art school heads of department who don’t even know that such a subject exists.” Artist and writer Simon Bill. Facebook post made on 7th July 2022 This written contribution towards a PhD by Publication outlines research projects that draw on a personal fascination in the effects of the fictive - both its cathartic potential and its tendency to slip into darker territories that can cause harm to others. By exploring what happens when a fiction is believed and how it impacts on the individuals and communities who harbour those beliefs, it considers how the ‘false’ can shift our behaviours. This research is explored in relation to three major public projects with a focus on work undertaken in the last ten years (2012-22). They include WITH (withyou.co.uk), that forms the background to this research; False Memory Archive that extends key research areas and Smoke and Mirrors: The Psychology of Magic, a major exhibition that I initiated and co-curated at Wellcome Collection, London. Aspects of human cognition contribute to the creation of our subjective experiences, whether that be our imaginations, our memories, our beliefs, or our sense of ‘self’. Working closely with world-renowned Cognitive Psychologists1 on residencies and projects since 2012, I have developed an understanding of an area of research that I refer to as the Science of Subjectivity. This term could also be described as the science (or psychology) of perception or of conscious experience, and I’m situating my understanding of this territory as an artist who explores affinities between art and science. This thesis draws on research from cognitive psychology that identifies how certain fictions are believed and why our perceptual systems have evolved to tell stories that help us make sense of our experiences. These tendencies can be exploited and weaponised through suggestion and misinformation, particularly by those in positions of authority. This commentary will explore how certain themes have become embedded within contemporary art practice and its institutions over the last twenty years. It proposes that the Science of Subjectivity is a useful contribution to furthering an understanding of art that is concerned with politics and activism, tactical media and the parafictional, the nature of identity, memory and autobiography and the psychic, mystical and spiritual. The transference of knowledge from cognitive psychology to these key issues in contemporary art, presented through research and artistic practices that move beyond current archetypes, combined with evidence from key public projects, constitutes a unique contribution to knowledge in this interdisciplinary field of art and science.
title: A Glutamatergic Circuit Between the Medial Zona Incerta and Cuneiform Nucleus
Creators: name: Belway, Cole R.
Publisher: name: Graduate Studies
Year: 2025
Subjects: subject: Locomotion
subject: Motor control
subject: Neuroscience

description: Movement and locomotion are fundamental for goal-directed behaviours in diverse invertebrate and vertebrate organisms. Integrating higher brain centers with evolutionarily conserved descending brainstem locomotor command centers plays a key role in orchestrating context-specific behaviours. The mesencephalic locomotor region (MLR), primarily comprised of the cuneiform nucleus (CnF) and pedunculopontine nucleus (PPN) is one such conserved descending locomotor center in diverse vertebrate species shown to produce locomotion. Excitatory glutamatergic neurons of the CnF have been shown to set both speed and gait for high-speed locomotion implicated in defensive flight when activated. The medial zona incerta (mZI) is an important hub, allowing for rapid responses to sensory inputs. Projections from the mZI to CnF exist, forming a critical inhibitory circuit for the expression of exploratory behaviours. Less is known on the information however evolved around excitatory afferents to the CnF and their functional implications. Using both a retrograde and anterograde viral tracing approach, I identified a glutamatergic circuit between the mZI and CnF. Activation of the mZI-CnF glutamatergic circuit did not provoke an increase in locomotion within an open field. However, an increase in aversive behaviour with less time spent in a conditioned chamber as well as exhibited heightened levels of anxiety with increased grooming and immobility was observed. Mouse grimace scale (MGS) testing did not reveal any significant difference in pain-related facial expressions. Together, these results highlight that glutamatergic afferents from the mZI to CnF elicits aversive behaviour that is independent of locomotion. My thesis provides evidence that activation of this circuit is sex-specific, with females showing significant aversion compared to male mice.
Is $Z_b(10610)$ a Molecular State?
Creators: name: Ke, Hong-Wei
name: Li, Xue-Qian
name: Shi, Yan-Liang
name: Wang, Guo-Li
name: Yuan, Xu-Hao
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Whether molecular states indeed exist in nature has been disputed for a long time. Several new resonances have been observed in the recent experiments and they seem to be of exotic structures and some of them have been proposed to be molecular states. The very recent observation of $Z_b(10610)[(10608.4\pm 2.0)$ MeV] and $Z_b(10650)[(10653.2\pm 1.5)$ MeV] encourages the interpretation of multi-quark states. In the Beter-Salpeter (BS) approach, we study the possibility if two heavy mesons can form a molecular state by exchanging light mesons. Our results indicate that two heavy mesons can form an isospin singlet (I=0) bound state but cannot form an isospin triplet (I=1) when the contribution of $σ-$ exchange is reasonably small, i.e. as the coupling of $σ$ with mesons $g_σ$ takes the value given in previous literatures. Thus we conclude that the newly observed $Z_b(10610)$ should not be a molecular state, but a tetraquark state instead, at most, the fraction of the molecular state in the physical resonance $Z_b(10610)$ is tiny.
description: 15 pages, 2 figures, an important reference added; Accepted by JHEP
Hom-Lie-Virasoro symmetries in Bloch electron systems and quantum plane in tight binding models
Creators: name: Aizawa, Naruhiko
name: Sato, Haru-Tada
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 17B61, 17B68, 81R50, 81R60

description: We discuss the Curtright-Zachos (CZ) deformation of the Virasoro algebra and its extentions in terms of magnetic translation (MT) group in a discrete Bloch electron system, so-called the tight binding model (TBM), as well as in its continuous system. We verify that the CZ generators are essentially composed of a specific combination of MT operators representing deformed and undeformed $U(1)$ translational groups, which determine phase factors for a $\ast$-bracket commutator. The phase factors can be formulated as a $\ast$-ordered product of the commutable $U(1)$ operators by interpreting the AB phase factor of discrete MT action as fluctuation parameter $q$ of a quantum plane. We also show that some sequences of TBM Hamiltonians are described by the CZ generators.
description: 35 pages, 2 figures, Errors are corrected (minor revision)
Dendrophysa russelii USMFC
Creators: name: Zainal Abidin, Danial Hariz
name: Lavoué, Sébastien
name: Mohd Abu Hassan Alshari, Norli Fauzani
name: Mohd. Nor, Siti Azizah
name: A. Rahim, Masazurah
name: Mohammed Akib, Noor Adelyna
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Sciaenidae
Dendrophysa
Dendrophysa russelii

description: Dendrophysa russelii (Cuvier, 1829) Material examined. MALAYSIA • 1, 126 mm TL; Kedah State, Kuala Kedah, Kuala Muda Whispering Market; 05.578°N, 100.341°E; 19 Mar. 2019; Danial H. Zainal Abidin, Norli F.M.A.H. Alshari leg.; USMFC (48) 00009.
description: Published as part of Zainal Abidin, Danial Hariz, Lavoué, Sébastien, Mohd Abu Hassan Alshari, Norli Fauzani, Mohd. Nor, Siti Azizah, A. Rahim, Masazurah & Mohammed Akib, Noor Adelyna, 2021, Ichthyofauna of Sungai Merbok Mangrove Forest Reserve, northwest Peninsular Malaysia, and its adjacent marine waters, pp. 601-631 in Check List 17 (2) on page 624, DOI: 10.15560/17.2.601
Local Tropicalization
Creators: name: Popescu-Pampu, Patrick
name: Stepanov, Dmitry
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: Primary 14T05, Secondary 32S05, 14M25

description: In this paper we propose a general functorial definition of the operation of \emph{local tropicalization} in commutative algebra. Let $R$ be a commutative ring, $Γ$ a finitely generated subsemigroup of a lattice, $γ: Γ\rightarrow R/ R^*$ a morphism of semigroups, and $\V(R)$ the topological space of valuations on $R$ taking values in $\R \cup \infty$. Then we may \emph{tropicalize} with respect to $γ$ any subset $\W$ of the space of valuations $\V(R)$. By definition, we get a subset of a rational polyhedral cone canonically associated to $Γ$, enriched with strata at infinity. In particular, when $R$ is a local ring, $γ$ is a \emph{local} morphism of semigroups, and $\W$ is the space of valuations which are either positive or non-negative on $R$, we call these processes \emph{local tropicalizations}. They depend only on the ambient toroidal structure, which in turn allows to define tropicalizations of subvarieties of toroidal embeddings. We prove that with suitable hypothesis, these local tropicalizations are the supports of finite rational polyhedral fans enriched with strata at infinity and we compare the global and local tropicalizations of a subvariety of a toric variety.
description: 67 pages, 6 figures. With respect to the previous version, it incorporates the changes asked by the referees. In particular, there are more explanations, examples and figures. It will appear in "Tropical Geometry", Proceedings Castro Urdiales 2011, E. Brugall\'e, M.A. Cueto, A. Dickenstein, E.M. Feichtner and I. Itenberg editors, Contemporary Mathematics, AMS, 2013
title: Multiple Autonomous Vehicle Extended Reality Immersive Control Systems: A Conceptual Exploration & Empirical Evaluation
Creators: name: Lawton, Bryson Robert Mitchell
Publisher: name: Graduate Studies
Year: 2025
Subjects: subject: extended reality
subject: virtual reality
subject: robotic vehicle
subject: drone
subject: control
subject: ground control station
subject: human-robot interaction
subject: human-computer interaction
subject: XR
subject: VR
subject: GCS
subject: HRI
subject: HCI
subject: Computer Science
subject: Robotics

description: This research investigates the potential impacts of extended reality technologies on ground control station (GCS) interfaces for multi-vehicle operations. To do so a prototype XR software was developed, designed for multiple autonomous vehicle extended reality immersive control (MAVERIC). A usability study was then conducted to determine the comparative usability of this prototype against VCSi, a modern commercial GCS software, for accomplishing tasks in a flight route planning scenario and multi-drone management scenario. Participants' usability evaluations and feedback revealed that the prototype's XR approach offered unique advantages in enhancing spatial awareness, task performance, and user satisfaction. For both scenarios, participants perceived the MAVERIC approach as generally more intuitive as well as easier and less frustrating to use. Participants found its hands-on spatial interactions offered a more natural and intuitive approach for placing route waypoints in 3D, which they generally perceived as being faster, easier to learn, and supporting better task success compared to VCSi's desktop-style interface. Many also reported its easily scalable immersive workspaces aided situational understanding during multi-drone management workflows while also making them feel more effective at handling its complexity with less cognitive effort. Despite these strengths, limitations such as increased physical demand, ergonomic discomfort, and precise waypoint placement challenges were noted, indicating the need for iterative design improvements. Some participant feedback also indicated that cross-reality GCS interfaces could be valuable to explore, as integrating the strengths of both conventional and XR approaches may help mitigate each other's weaknesses when used together. This work's findings are hoped to inform future research in the XR and MAVERIC research domains, especially those aimed at further exploring and refining our understanding of how XR technologies may be best used to benefit the diverse civilian applications of drones and other robotic vehicles.
The Dark Bursts population in a complete sample of bright Swift Long Gamma-Ray Bursts
Creators: name: Melandri, A.
name: Sbarufatti, B.
name: D'Avanzo, P.
name: Salvaterra, R.
name: Campana, S.
name: Covino, S.
name: Vergani, S. D.
name: Nava, L.
name: Ghisellini, G.
name: Ghirlanda, G.
name: Fugazza, D.
name: Mangano, V.
name: Capalbi, M.
name: Tagliaferri, G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the properties of the population of optically dark events present in a carefully selected complete sample of bright Swift long gamma-ray bursts. The high level of completeness in redshift of our sample (52 objects out of 58) allow us to establish the existence of a genuine dark population and we are able to estimate the maximum fraction of dark burst events (~30%) expected for the whole class of long gamma-ray burst. The redshift distribution of this population of dark bursts is similar to the one of the whole sample. Interestingly, the rest-frame X-ray luminosity (and the de-absorbed X-ray flux) of the sub-class of dark bursts is slightly higher than the average luminosity of the non-dark events. At the same time the prompt properties do not differ and the optical flux of dark events is at the lower tail of the optical flux distribution, corrected for Galactic absorption. All these properties suggest that dark bursts events generate in much denser environments with respect to normal bright events. We can therefore exclude the high-z and the low-density scenarios and conclude that the major cause of the origin of optically dark events is the dust extinction.
description: 8 pages, 4 figures, 3 tables. This version matches the published version in MNRAS
Nibea soldado
Creators: name: Zainal Abidin, Danial Hariz
name: Lavoué, Sébastien
name: Mohd Abu Hassan Alshari, Norli Fauzani
name: Mohd. Nor, Siti Azizah
name: A. Rahim, Masazurah
name: Mohammed Akib, Noor Adelyna
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Sciaenidae
Nibea
Nibea soldado

description: Nibea soldado (Lacepède, 1802) Figure 4H Material examined. MALAYSIA • 3, 237– 284 mm TL; Kedah State, Kuala Kedah, Kuala Muda Whispering Market; 05.578°N, 100.341°E; 6 Dec. 2018; Danial H. Zainal Abidin, Norli F.M.A.H. Alshari leg.; USMFC (48) 00005.
description: Published as part of Zainal Abidin, Danial Hariz, Lavoué, Sébastien, Mohd Abu Hassan Alshari, Norli Fauzani, Mohd. Nor, Siti Azizah, A. Rahim, Masazurah & Mohammed Akib, Noor Adelyna, 2021, Ichthyofauna of Sungai Merbok Mangrove Forest Reserve, northwest Peninsular Malaysia, and its adjacent marine waters, pp. 601-631 in Check List 17 (2) on page 624, DOI: 10.15560/17.2.601
title: Optimizing Cloud Virtual Reality Networks with Transfer Learning for Frame-size Prediction and Lossy Latent Transmission
Creators: name: Vaidya, Sampreet
Publisher: name: Graduate Studies
Year: 2025
Subjects: subject: Virtual Reality
subject: Cloud VR
subject: Transfer Learning
subject: Variational AutoEncoders
subject: Generative Adversarial Networks
subject: Artificial Intelligence
subject: Education--Technology

description: Despite the growing popularity of Virtual Reality (VR), its adoption remains limited due to bulky hardware and low mobility. Cloud-based VR (cloud VR) offers a promising solution but faces two major challenges: efficient network resource management and high-resolution content compression. Overcoming these challenges is crucial for cloud VR to prevent subpar Quality of Experience (QoE). Predicting network application traffic characteristics in advance offers a potential solution for the first challenge as it enables proactive resource allocation. To this end, we investigated the use of machine learning (ML) models to predict network traffic frame size data, collected from a real-world cloud VR gaming testbed. Furthermore, this thesis explored effectiveness of transfer learning (TL) in predicting frame size traffic patterns across different games and network conditions under online learning settings. The proposed TL approach reduces overall traffic prediction error by up to 54%. For the second challenge, effective compression techniques are crucial for high-resolution VR transmission. This thesis proposed a novel compression framework using Deep Neural Networks (VAE-GAN) for streaming 8K stereoscopic videos which demands significant bandwidth. By mapping latents as 3-channel RGB scenes compatible with standard encoders, the proposed method reduces bandwidth requirements by up to 45.1% across various 8K stereoscopic scenes while maintaining visual quality. Additionally, the impact of varying input frame patch sizes on client-side reconstructions and different transmission configurations for latent frames is evaluated, offering insights into optimizing high-resolution VR streaming systems. Overall, this work tackles network resource management and compression challenges in cloud VR systems, providing valuable insights for next-generation immersive VR experiences.
Measurement of the Sensitivity of Two-Particle Correlations in $pp$ Collisions to the Presence of Hard Scatterings
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A key open question in the study of multi-particle production in high-energy $pp$ collisions is the relationship between the "ridge'' - observed azimuthal correlations between particles in the underlying event that extend over all rapidities - and hard or semi-hard scattering processes. In particular, it is not known whether jets or their soft fragments are correlated with particles in the underlying event. To address this question, two-particle correlations are measured in $pp$ collisions at $\sqrt{s}=13$ TeV using data collected by the ATLAS experiment at the LHC, with an integrated luminosity of $15.8$ $\mathrm{pb}^{-1}$, in two different configurations. In the first case, charged particles associated with jets are excluded from the correlation analysis, while in the second case, correlations are measured between particles within jets and charged particles from the underlying event. Second-order flow coefficients, $v_2$, are presented as a function of event multiplicity and transverse momentum. These measurements show that excluding particles associated with jets does not affect the measured correlations. Moreover, particles associated with jets do not exhibit any significant azimuthal correlations with the underlying event, ruling out hard processes contributing to the ridge.
description: 34 pages in total, author list starting page 17, 8 figures, published btw Phys. Rev. Lett. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HION-2021-08
The Ethics of Ambiguity in Quintilian
Creators: name: McNamara, Charles Joseph
Publisher: name: Columbia University
Year: 2018
Subjects: Rhetoric
Composition (Language arts)
Latin language

description: In a list of twelve stylistic and grammatical errors of oratory, the fourth-century grammarian Donatus includes the fault of amphibolia, a transliteration of a Greek word that Donatus further
defines as an ambiguitas dictionis. This understanding of ambiguitas dictionis as a flaw in composition is unique neither to the texts of late antiquity nor to technical grammatical treatises, and one can find ample cautioning against it in pedagogical texts both before and after Donatus. In his  first-century Institutio Oratoria, for instance, Quintilian similarly cautions against writing ambiguous language and encourages his students to compose lucid and straightforward Latin, particularly in regard to syntax.
Well-posedness results for a new class of stochastic spatio-temporal SIR-type models driven by proportional pure-jump Lévy noise
Creators: name: Mehdaoui, Mohamed
Publisher: name: arXiv
Year: 2023
Subjects: subject: Probability (math.PR)
subject: Dynamical Systems (math.DS)
subject: Physics and Society (physics.soc-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: FOS: Biological sciences
subject: 92B05, 92D30, 60H30, 60Hxx

description: This paper provides a first attempt to incorporate the massive discontinuous changes in the spatio-temporal dynamics of epidemics. Namely, we propose an extended class of epidemic models, governed by coupled stochastic semilinear partial differential equations, driven by pure-jump Lévy noise. Based on the considered type of incidence functions, by virtue of semi-group theory, a truncation technique and Banach fixed point theorem, we prove the existence and pathwise uniqueness of mild solutions, depending continuously on the initial datum. Moreover, by means of a regularization technique, based on the resolvent operator, we acquire that mild solutions can be approximated by a suitable converging sequence of strong solutions. With this result at hand, for positive initial states, we derive the almost-sure positiveness of the obtained solutions. Finally, we present the outcome of several numerical simulations, in order to exhibit the effect of the considered type of stochastic noise, in comparison to Gaussian noise, which has been used in the previous literature. Our established results lay the ground-work for investigating other problems associated with the new proposed class of epidemic models, such as asymptotic behavior analyses, optimal control as well as identification problems, which primarily rely on the existence and uniqueness of biologically feasible solutions.
Otolithes ruber
Creators: name: Zainal Abidin, Danial Hariz
name: Lavoué, Sébastien
name: Mohd Abu Hassan Alshari, Norli Fauzani
name: Mohd. Nor, Siti Azizah
name: A. Rahim, Masazurah
name: Mohammed Akib, Noor Adelyna
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Sciaenidae
Otolithes
Otolithes ruber

description: Otolithes ruber (Bloch & Schneider, 1801) Material examined. MALAYSIA • 5, 232– 254 mm TL; Kedah State, Kuala Kedah, Kuala Muda Whispering Market; 05.578°N, 100.341°E; 6 Dec. 2018; Danial H. Zainal Abidin, Norli F.M.A.H. Alshari leg.; USMFC (48) 00004.
description: Published as part of Zainal Abidin, Danial Hariz, Lavoué, Sébastien, Mohd Abu Hassan Alshari, Norli Fauzani, Mohd. Nor, Siti Azizah, A. Rahim, Masazurah & Mohammed Akib, Noor Adelyna, 2021, Ichthyofauna of Sungai Merbok Mangrove Forest Reserve, northwest Peninsular Malaysia, and its adjacent marine waters, pp. 601-631 in Check List 17 (2) on page 624, DOI: 10.15560/17.2.601
Obituary, Arthur T. Jersild (1902-1994)
Creators: name: Bloom, Lois
Publisher: name: Columbia University
Year: 1996
Subjects: subject: Developmental psychology
subject: Psychology
subject: FOS: Psychology

description: Arthur T. Jersild, a member of the faculty of Teachers College, Columbia University from 1930 to 1967, was a widely respected psychologist and one of the forebears of the study of child and adolescent development. The emphasis in his research was on the importance of thoughts, feelings, and especially the “self” in the inner life of the developing child. His teaching and writing were dedicated to the idea that “research and teaching should give more attention than usually has been devoted to the subjective dimensions of human existence.”
Additional file 1 of Periodontitis contributes to COPD progression via affecting ferroptosis
Creators: name: Xiong, Kaixin
name: Yang, Peng
name: Wei, Wei
name: Li, Jia
name: Cui, Yujia
name: Li, Yan
name: Tang, Boyu
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 1
Blue Fermi Flat Spectrum Radio Quasars
Creators: name: Ghisellini, G.
name: Tavecchio, F.
name: Foschini, L.
name: Sbarrato, T.
name: Ghirlanda, G.
name: Maraschi, L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Many blazars detected by the Fermi satellite, observed spectroscopically in the optical, are line-less, and have been classified as BL Lac objects. Optical-UV photometry of nearly one hundred of them allowed to determine the redshift for a handful of objects and redshift upper limits for the great majority. A few of these are candidates to be "blue quasars", namely flat spectrum radio quasars whose broad emission lines are hidden by an overwhelming synchrotron emission peaking in the UV. This implies that the emitting electrons have high energies. In turn, this requires relatively weak radiative cooling, a condition that can be met if the main radiative dissipation of the jet power occurs outside the broad line region. We confirm this hypothesis by studying and modelling the spectral energy distributions of the 4 "blue quasars" recently discovered. Furthermore, we discuss the distribution of Fermi blazars in the gamma-ray spectral index -- gamma-ray luminosity plane, and argue that "blue quasars" objects are a minority within the blazar populations.
description: 10 pages, 5 figures. Accepted for publication in MNRAS
17beta estradiol, but not estrone, increases hippocampal neurogenesis and activation of new granule neurons in response to spatial memory in adult female rats
Creators: name: Stewart, Robyn
Publisher: name: University of British Columbia
Year: 2012

description: Estrogens fluctuate across the lifespan in women, with circulating 17β-estradiol levels higher pre-menopause than estrone and circulating estrone levels higher postmenopause than 17β- estradiol. Estrone is a common component of hormone replacement therapies, but research shows that 17β-estradiol may have a greater positive impact on cognition. Previous studies show that acute estrone and 17β-estradiol impact hippocampus-dependent learning and cell proliferation in the dentate gyrus in a dose-dependent manner in adult female rats. The current study explores how chronic treatment with estrone and 17β-estradiol differentially influences spatial learning, hippocampal neurogenesis and activation of new neurons in response to spatial memory. Adult female rats received daily injections of vehicle (sesame oil), or a 10μg dose of either 17β-estradiol or estrone for 20 days. One day following the first hormone injection all rats were injected with the DNA synthesis marker, bromodeoxyuridine. On days 11-15 after BrdU injection rats were trained on a spatial reference version of the Morris water maze, and five days later (day 20 of estrogens treatment) were given a probe trial to assess memory retention. There were no significant differences between groups in acquisition or retention of Morris water maze. However, the 17β-estradiol group had significantly higher, while the estrone group had significantly lower, levels of neurogenesis in the dentate gyrus compared to controls. Furthermore, rats injected with 17β-estradiol showed significantly higher levels of activation of new neurons in response to spatial memory compared to controls. These results provide insight into how estrogens differentially influence the brain and behaviour, and may provide insight into the development of hormone replacement therapies for women.
Delicate and robust dynamical recurrences of matter waves in driven optical crystals
Creators: name: Ayub, Muhammad
name: Saif, Farhan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study dynamical recurrences of a Bose-Einstein condensate in an optical crystal subject to a periodic external driving force. The recurrence behavior of the condensate is analyzed as a function of time close to nonlinear resonances occurring in the classical counterpart. Our mathematical formalism for the recurrence time scales is presented as delicate recurrences, which take place, for instance, when the lattice is perturbed weakly and robust recurrences, which may manifest themselves for a sufficiently strong external driving force. The analysis not only is valid for a dilute condensate, but also is applicable for the strongly interacting homogeneous condensate provided; the external modulation causes no significant change in the density profile of the condensate. We explain the parametric dependence of the dynamical recurrence times, which can easily be realized in laboratory experiments. In addition, we find good agreement between the obtained analytical results and the numerical calculations.
description: 7 pages, 6 figs
Explicit computation of Drinfeld associator in the case of the fundamental representation of gl(N)
Creators: name: Dunin-Barkowski, Petr
name: Sleptsov, Alexey
name: Smirnov, Andrey
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Geometric Topology (math.GT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We solve the regularized Knizhnik-Zamolodchikov equation and find an explicit expression for the Drinfeld associator. We restrict to the case of the fundamental representation of $gl(N)$. Several tests of the results are presented. It can be explicitly seen that components of this solution for the associator coincide with certain components of WZW conformal block for primary fields. We introduce the symmetrized version of the Drinfeld associator by dropping the odd terms. The symmetrized associator gives the same knot invariants, but has a simpler structure and is fully characterized by one symmetric function which we call the Drinfeld prepotential.
description: 14 pages, 2 figures; several flaws indicated by referees corrected
Kubo formulas for relativistic fluids in strong magnetic fields
Creators: name: Huang, Xu-Guang
name: Sedrakian, Armen
name: Rischke, Dirk H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Magnetohydrodynamics of strongly magnetized relativistic fluids is derived in the ideal and dissipative cases, taking into account the breaking of spatial symmetries by a quantizing magnetic field. A complete set of transport coefficients, consistent with the Curie and Onsager principles, is derived for thermal conduction, as well as shear and bulk viscosities. It is shown that in the most general case the dissipative function contains five shear viscosities, two bulk viscosities, and three thermal conductivity coefficients. We use Zubarev's non-equilibrium statistical operator method to relate these transport coefficients to correlation functions of equilibrium theory. The desired relations emerge at linear order in the expansion of the non-equilibrium statistical operator with respect to the gradients of relevant statistical parameters (temperature, chemical potential, and velocity.) The transport coefficients are cast in a form that can be conveniently computed using equilibrium (imaginary-time) infrared Green's functions defined with respect to the equilibrium statistical operator.
description: v2: typos corrected, 32 pages, no figures, matches published version
Field-level multiprobe analysis of the CMB, integrated Sachs-Wolfe effect, and the galaxy density maps
Creators: name: Zhou, Alan Junzhe
name: Dodelson, Scott
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Extracting information from cosmic surveys is often done in a two-step process, construction of maps and then summary statistics such as two-point functions. We use simulations to demonstrate the advantages of a general Bayesian framework that consistently combines different cosmological experiments on the field level, and reconstructs both the maps and cosmological parameters. We apply our method to jointly reconstruct the primordial CMB, the integrated Sachs-Wolfe effect, and six tomographic galaxy density maps on the full sky on large scales along with several cosmological parameters. While the traditional maximum a posterior estimator has both two-point level and field-level bias, the new approach yields unbiased cosmological constraints and improves the signal-to-noise ratio of the maps.
description: 23 pages, 20 figures, updated to match the published version in PRD
Panna microdon
Creators: name: Zainal Abidin, Danial Hariz
name: Lavoué, Sébastien
name: Mohd Abu Hassan Alshari, Norli Fauzani
name: Mohd. Nor, Siti Azizah
name: A. Rahim, Masazurah
name: Mohammed Akib, Noor Adelyna
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Sciaenidae
Panna
Panna microdon

description: Panna microdon (Bleeker, 1849) Material examined. MALAYSIA • 1, 210 mm TL; Kedah State, Kuala Kedah, Kuala Muda Whispering Market; 05.578°N, 100.341°E; 4 Mar. 2019; Danial H. Zainal Abidin, Norli F.M.A.H. Alshari leg.; USMFC (48) 00007.
description: Published as part of Zainal Abidin, Danial Hariz, Lavoué, Sébastien, Mohd Abu Hassan Alshari, Norli Fauzani, Mohd. Nor, Siti Azizah, A. Rahim, Masazurah & Mohammed Akib, Noor Adelyna, 2021, Ichthyofauna of Sungai Merbok Mangrove Forest Reserve, northwest Peninsular Malaysia, and its adjacent marine waters, pp. 601-631 in Check List 17 (2) on page 624, DOI: 10.15560/17.2.601
title: Islamophobia in Canadian Nursing: An Interpretive Phenomenological Study
Creators: name: Upal, Zahra
Publisher: name: Graduate Studies
Year: 2025
Subjects: subject: Islamophobia
subject: Islamophobia in Nursing
subject: Hijab and Nursing
subject: Muslim Nurses
subject: Interpretative phenomenological analysis
subject: racism
subject: Nursing
subject: FOS: Health sciences

description: Muslim Nurses in Canada are experiencing Islamophobia in the workplace as well as in educational institutions. These experiences result in increased mental distress for these nurses, social isolation at the workplace, and considerations of leaving the nursing profession. This thesis explores the experiences of Islamophobia for Registered Nurses who wear the hijab at work in Canada. This study is grounded in Critical Race Theory and aims to answer the following research question: What are the experiences of Islamophobia for female Canadian Registered Nurses who wear the hijab? A total of six participants were interviewed, and the results were analyzed using the Interpretative Phenomenological Analysis method. Muslim nurses’ experiences were characterized by their sense of belonging. Key findings consist of the experiences of Islamophobia being related to the negative stereotypical identity of what it means to be a Muslim woman being associated with these nurses, how they discover their own identity as nurses and finally, how they reconcile their personal and social identities as Muslim women with their identity as Registered Nurses. This study adds to the literature on this topic by uncovering the internal process of self-discovery that Muslim nurses go through after experiencing Islamophobia through being assigned an identity. This process helps them to discover their own identities as well as reconcile what it means to them to be Muslim nurses, thus allowing them to be able to practice comfortably at the workplace. Recommendations of this study are that policy changes should be enacted which protect Muslim nurses and work to reduce the normalization of Islamophobia and the prejudiced beliefs about Muslims in the nursing profession to prevent incidents of Islamophobia. Secondly, more education needs be provided to nursing students as well as staff regarding anti-racism and Islamophobia to encourage the creation of supportive nursing places. Finally, more support needs to be provided to Muslim nurses who are experiencing Islamophobia at the workplace.