cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Resolving Gas Dynamics in the Circumnuclear Region of a Disk Galaxy in a Cosmological Simulation
Creators: name: Levine, Robyn
name: Gnedin, Nickolay Y.
name: Hamilton, Andrew J. S.
name: Kravtsov, Andrey V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using a hydrodynamic adaptive mesh refinement code, we simulate the growth and evolution of a galaxy, which could potentially host a supermassive black hole, within a cosmological volume. Reaching a dynamical range in excess of 10 million, the simulation follows the evolution of the gas structure from super-galactic scales all the way down to the outer edge of the accretion disk. Here, we focus on global instabilities in the self-gravitating, cold, turbulence-supported, molecular gas disk at the center of the model galaxy, which provide a natural mechanism for angular momentum transport down to sub-pc scales. The gas density profile follows a power-law scaling as r^-8/3, consistent with an analytic description of turbulence in a quasi-stationary circumnuclear disk. We analyze the properties of the disk which contribute to the instabilities, and investigate the significance of instability for the galaxy's evolution and the growth of a supermassive black hole at the center.
description: 16 pages (includes appendix), submitted to ApJ. Figures here are at low resolution; for higher resolution version, download http://casa.colorado.edu/~levinerd/ms.pdf
Role of Fluid Forces and Depletion Interactions in Directing Assembly of Aqueous Gold Nanorods on Hydrophobic Surfaces
Creators: name: Vaisakh, NP
name: Bhattacharjee, Suman
name: Srivastava, Sunita
Publisher: name: arXiv
Year: 2024
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The interaction between macroscopic fluid flow and nanoscale forces has resulted in the formation of long-range assemblies through evaporation-induced self-assembly. Anisotropic gold nanorods (AuNR) can form disordered, smectic, or vertically ordered long-range structures, but controlling their assembly remains a challenge and requires a deeper understanding of fundamental interaction mechanisms. In this work, we established a correlation between the $in~situ$ drying profiles, measured using an optical tensiometer, and deposit pattern, imaged $ex~situ$ using electron microscopy. Increasing particle concentration induced a transition from coffee-ring to uniform deposition at the microscale, while nanoscale structures shifted from isotropic/smectic to vertically aligned crystalline AuNRs. The interplay of capillary and Marangoni flow influences assembly at both macro and nanoscales, with the deposition process and nanoparticle ordering being highly sensitive to interparticle and nanoparticle-substrate interactions. By systematically studying key parameters, we aim to develop a comprehensive framework for the rational design and fabrication of nanomaterials with precisely controlled structure and properties.
description: 35 pages including SI, 13 figures including SI, corresponding author: Sunita Srivastava (sunita.srivastava@iitb.ac.in)
Architectures and Algorithms for On-Line Failure Recovery in Redundant Disk Arrays
Creators: name: Holland, Mark
name: Gibson, Garth
name: Siewiorek, Daniel P
Publisher: name: Carnegie Mellon University
Year: 1972
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: The performance of traditional RAID Level 5 arrays is, for many applications, unacceptably poor while one of its constituent disks is non-functional. This paper describes and evaluates mechanisms by which this disk array failure-recovery performance can be improved. The two key issues addressed are the data layout, the mapping by which data and parity blocks are assigned to physical disk blocks in an array, and the reconstruction algorithm, which is the technique used to recover data that is lost when a component disk fails. The data layout techniques this paper investigates are variations on the declustered parity organization, a derivative of RAID Level 5 that allows a system to trade some of its data capacity for improved failure-recovery performance. Parity declustering improves the failure-mode performance of an array significantly, and a parity-declustered architecture is preferable to an equivalent-size multiple-group RAID Level 5 organization in environments where failure-recovery performance is important. The presented analyses also include comparisons to a RAID Level 1 (mirrored disks) approach. With respect to reconstruction algorithms, this paper describes and briefly evaluates two alternatives termed stripe-oriented reconstruction and disk-oriented reconstruction, and establishes that the latter is preferable as it provides faster reconstruction. The paper then revisits a set of previously-proposed reconstruction optimizations, evaluating their efficacy when used in conjunction with the disk-oriented algorithm. The paper concludes with a section on the reliability vs. capacity trade-off that must be addressed when designing large arrays.
Renormalization of QCD in the interpolating momentum subtraction scheme at three loops
Creators: name: Gracey, J. A.
name: Simms, R. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We introduce a more general set of kinematic renormalization schemes than the original momentum (MOM) subtraction schemes of Celmaster and Gonsalves. These new schemes will depend on a parameter $ω$ which tags the external momentum of one of the legs of the $3$-point vertex functions in Quantum Chromodynamics (QCD). In each of the three new schemes we renormalize QCD in the Landau and maximal abelian gauges and establish the three loop renormalization group functions in each gauge. As an application we evaluate two critical exponents at the Banks-Zaks fixed point and demonstrate that their values appear to be numerically scheme independent in a subrange of the conformal window.
description: 42 latex pages, 14 tables 4 figures, anc directory contains txt file with electronic version of renormalization group functions, coupling constant mappings,conversion functions vertex functions and projection matrices
The Canada-U.S. Productivity Puzzle: Regional Evidence of the Pulp and Paper Industry, 1971-2005
Creators: name: Bernard, Jean-Thomas
name: Hussain, Md. Jakir
Publisher: name: My University
Year: 2015
Subjects: Total factor prductivity
income convergence
pulp and paper industry
productivité totale des facteurs
convergence du revenu par habitant
industries des pâtes et papiers

description: We analyze the total factor productivity (TFP) of the pulp and paper industry in three Canadian provinces (British Columbia, Ontario, and Quebec) and in three U.S. states that are contiguously located south of the border (Washington, Illinois, and Maine) over the period of 1971 to 2005. We find that the industry in the three Canadian provinces had much higher TFP growth rates in the era following the Free Trade Agreement (FTA), signed in 1988. In terms of productivity trend, this relative TFP surge has allowed the industry in the three Canadian provinces to move ahead of Illinois and Washington and closer to Maine which is the U.S. leader in the sample. Our results in this particular case do not support the commonly accepted view that Canada has a productivity problem relative to the U.S. / Nous analysons la productivité totale des facteurs (PTF) de l’industrie des pâtes et papiers de trois provinces (Colombie-Britannique, Ontario et Québec) et de celle de trois états américains contigus au sud de la frontière (Washington, Illinois et Maine) au cours de la période allant de 1971 à 2005. Nous trouvons que l’industrie dans les trois provinces canadiennes a connu des taux de croissance de la productivité totale plus élevés après l’Accord de Libre Échange signé en 1988. En ce qui concerne la tendance de la productivité, cette accélération de la PTF a permis à l’industrie de devancer l’Illinois et Washington et de se rapprocher du Maine qui est le meneur aux E.-U. dans notre échantillon. Dans ce cas particulier, notre analyse ne supporte pas le point de vue souvent exprimé que l’industrie canadienne soufre d’un handicap au chapitre de la productivité totale par rapport à leurs compétiteurs américains.
Gaped graphene bilayer: disorder and magnetic field effects
Creators: name: Castro, Eduardo V.
name: Peres, N. M. R.
name: Santos, J. M. B. Lopes dos
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Double layer graphene is a gapless semiconductor which develops a finite gap when the layers are placed at different electrostatic potentials. We study, within the tight-biding approximation, the electronic properties of the gaped graphene bilayer in the presence of disorder, perpendicular magnetic field, and transverse electric field. We show that the gap is rather stable in the presence of diagonal disorder. We compute the cyclotron effective mass in the semi-classical approximation, valid at low magnetic fields. Landau level formation is clearly seen in zigzag and armchair ribbons of the gaped bilayer at intermediate magnetic fields.
description: 5 pages, 4 figures
A computational study on effects of injector pitch angle on flame stabilization in opposed jets in crossflow
Creators: name: Sharma, Vansh
name: Tang, Yihao
name: Raman, Venkat
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 401213
subject: Turbulent flows
classificationCode: 401204
subject: Computational methods in fluid flow, heat and mass transfer (incl. computational fluid dynamics)

description: Jet-in-Crossflow (JICF) systems have gained popularity in recent decades due to their potential to reduce NOx emissions in gas turbine systems. The interaction between crossflow and a single perpendicular jet, resulting in vortical flow structures, has been studied in-depth using flow visualizing and simulation techniques. Recent studies have also investigated effects of hydrogen addition on flame dynamics highlighting importance of flame stability in jet vicinity for such power generation devices. This work computationally investigates the development of re-circulation in the leeward zone of jets, critical for flame stabilization, in a practical setup consisting two opposed JICFs. Large-eddy simulations (LES) are performed for different configurations of pitch angle and momentum ratio for methane-hydrogen fuel operating at a high pressure in a rectangular channel flow. Analysis of velocity and mixture fraction profiles coupled with vorticity field reveals the extent to which the re-circulation in the leeward zone influences the degree of flame stabilization. For cases with lower pitch angles, there are complex interactions between the jet and boundary layer, and as the pitch angle increases, the starting position and strength of counter-rotating vortex pair (CRVP) shifts downstream. The lateral deflection of crossflow decreases with the pitch angle. Interaction between the two JICF structures is analyzed to understand the strength of the entrainment and mixing process to provide a better understanding of how this setup contributes to other combustion processes.
The reported durations of GOES Soft X-Ray flares in different solar cycles
Creators: name: Swalwell, Bill
name: Dalla, Silvia
name: Kahler, Stephen
name: White, Stephen M.
name: Ling, Alan
name: Viereck, Rodney
name: Veronig, Astrid
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Geostationary Orbital Environmental Satellites (GOES) Soft X-ray (SXR) sensors have provided data relating to, inter alia, the time, intensity and duration of solar flares since the 1970s. The GOES SXR Flare List has become the standard reference catalogue for solar flares and is widely used in solar physics research and space weather. We report here that in the current version of the list there are significant differences between the mean duration of flares which occurred before May 1997 and the mean duration of flares thereafter. Our analysis shows that the reported flare timings for the pre-May 1997 data were not based on the same criteria as is currently the case. This finding has serious implications for all those who used flare duration (or fluence, which depends on the chosen start and end times) as part of their analysis of pre-May 1997 solar events, or statistical analyses of large samples of flares, e.g. as part of the assessment of a Solar Energetic Particle forecasting algorithm.
description: In press in Space Weather (2018)
title: Fauna of New Zealand 34: Anthicidae (Insecta: Coleoptera)
Creators: name: Werner, FG
name: Chandler, DS
Publisher: name: Manaaki Whenua Press
Year: 1995

description: The Fauna of New Zealand / Ko te Aitanga Pepeke o Aotearoa monograph series. ISSN: 1179-7193
Generalized Koszul properties for augmented algebras
Creators: name: Phan, Christopher
Publisher: name: arXiv
Year: 2007
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16E65

description: Under certain conditions, a filtration on an augmented algebra A admits a related filtration on the Yoneda algebra E(A) := Ext_A(K, K). We show that there exists a bigraded algebra monomorphism from gr E(A) to E_Gr(gr A), where E_Gr(gr A) is the graded Yoneda algebra of gr A. This monomorphism can be applied in the case where A is connected graded to determine that A has the K_2 property recently introduced by Cassidy and Shelton.
description: 14 pages
Innovationsmethode Reallabor
Creators: name: Anduschus, Paul-Ole
name: Bienzeisler, Bernd
name: Prochazka, Veronika
name: :Unav
Publisher: name: Fraunhofer-Gesellschaft
Year: 2022
Subjects: Reallabor
Living Lab
Demonstrator
Open Innovation
Reallabor-Typen
Künstliche Intelligenz
KI
Smart City
Testraum
Praxisbeispiel

description: Sowohl in der unternehmerischen Praxis, in der Forschung als auch in der Stadtentwicklung wird zunehmend auf Methoden der Open Innovation, auf Partizipation und Ko-Kreation gesetzt. Reallabore stellen dabei ein beliebtes Format dar, um Innovationen in einem offenen Prozess unter Einbindung vielfältiger Akteure zu gestalten, zu testen und weiterzuentwickeln. Dabei zeichnen sich in der Praxis jedoch vielfältige Formen von Reallaboren ab. Die AutorInnen arbeiten daher in der vorliegenden Studie die Begriffsgeschichte auf, definieren den Begriff und untersuchen empirisch, welche Formen von Reallaboren sich in der Praxis unterscheiden lassen. Entlang von konkreten Beispielen aus der Praxis und basierend auf einer Interview-Studie entwickeln die AutorInnen ein Klassifikationssystem, das Reallabore entlang der drei Dimensionen Rahmenbedingungen, Ökosystem und Technologie in sieben Gruppen einteilt: Demonstratorenwelten, Modulare Living Labs, KI-Reallabore, Smart City Living Labs, Urban Living Labs, Innovationsareale und integrierte Reallabore. Basierend auf den Erfahrungen in den untersuchten Praxisbeispielen formulieren die AutorInnen Handlungsempfehlungen auf, was interessierte Personen und Institutionen bei der Initiierung und beim Betrieb von Reallaboren beachten sollten.
Multilayer Network Planning - A Practical Perspective
Creators: name: Autenrieth, Achim
Publisher: name: arXiv
Year: 2018
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The paper presents a pragmatic and practical multilayer network planning approach based on a candidate lightpath auxiliary graph model. The paper discusses, how this approach can be applied to offline network planning as well as dynamic planning and provisioning of services.
description: Parts of the presented work has received funding from the European Commission within the H2020 Research and Innovation Programme, under grant agreeement n.645127, project ACINO (www.acino.eu)
Light-by-Light Scattering in a Photon-Photon Collider
Creators: name: Takahashi, T.
name: An, G.
name: Chen, Y.
name: Chou, W.
name: Huang, Y.
name: Liu, W.
name: Lu, W.
name: Lv, J.
name: Pei, G.
name: Pei, S.
name: Shen, C. P.
name: Sun, B.
name: Zhang, C.
name: Zhang, C.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We studied the feasibility of observing light-by-light scattering in a photon-photon collider based on an existing accelerator complex and a commercially available laser system. We investigated the statistical significance of the signal over the QED backgrounds through a Monte Carlo simulation with a detector model. The study showed that light-by-light scattering can be observed with a statistical significance of 8 to 10 sigma in a year of operation, depending on the operating conditions.
description: 7 pages, 9 figures
Architecture-based Simulation for Security and Performance
Creators: name: Schmerl, Bradley
name: Butler, Shawn
name: Garlan, David
Publisher: name: Carnegie Mellon University
Year: 1985
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Architectural analysis is key to producing high quality architectures. In this demonstration we present two extensions to AcmeStudio, and domain-neutral Architecture Development Environment, to add Performance and Security Simulation. Using AcmeStudio as the integration platform for these analyses allows comparisons and trade-offs between these different quality attributes.
Ecopolitics Podcast, Season 2, Episode 5: Global Ecopolitics After COVID-19: Social Movements and International ENGOs
Creators: name: Katz-Rosene, Ryan
name: Andrée, Peter
Publisher: name: My University
Year: 2021

description: In this episode, we speak with Dr. Jennifer Allan of Cardiff University to get a better sense of how NGOs are shaping the climate movement, and the potential opportunities that arise for a green recovery post-COVID. [Produced by Nicole Bedford; Artwork by Adam Gibbard; Transcription by Allison Brown; Additional Resources prepared by Ashley Fearnall].
Architecture-Based Performance Analysis
Creators: name: Spitznagel, Bridget
name: Garlan, David
Publisher: name: Carnegie Mellon University
Year: 1989
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: A software architecture should expose important system properties for consideration and analysis. Performancerelated properties are frequently of interest in determining the acceptability of a given software design. In this paper we show how queueing network modeling can be adapted to support performance analysis of software architectures. We also describe a tool for transforming a software architecture in a particular style into a queueing network and analyzing its performance.
The $\mathsf{HOD}$ Hypothesis and a supercompact cardinal
Creators: name: Cheng, Yong
Publisher: name: arXiv
Year: 2018
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03E55, 03E99

description: In this paper, we prove that: if $κ$ is supercompact and the $\mathsf{HOD}$ Hypothesis holds, then there is a proper class of regular cardinals in $V_κ$ which are measurable in $\mathsf{HOD}$. Woodin also proved this result. As a corollary, we prove Woodin's Local Universality Theorem. This work shows that under the assumption of the $\mathsf{HOD}$ Hypothesis and supercompact cardinals, large cardinals in $\mathsf{V}$ are reflected to be large cardinals in $\mathsf{HOD}$ in a local way, and reveals the huge difference between $\mathsf{HOD}$-supercompact cardinals and supercompact cardinals under the $\mathsf{HOD}$ Hypothesis.
description: Published in Mathematical Logic Quarterly. 63, No. 5, 462-472 (2017)
Undescribed Mexican trout diversity: an update and conservation status assessments
Creators: name: Hendrickson, Dean A.
name: Lyons, Timothy
name: Tomelleri, Joseph
Publisher: name: F1000 Research Limited
Year: 2019

description: Two Mexican trout taxa are formally described (Oncorhynchus chrysogaster, and O. mykiss nelsoni), but many other congeners have long been informally recognized as likely distinct. For more than two decades, the binational Truchas Mexicanas team searched for and collected trout broadly throughout the Sierra Madre Occidental of Sonora, Chihuahua, Sinaloa and Durango. That fieldwork documented that the native range of the genus extends to the Tropic of Cancer, or ~1000 km S of El Paso, Texas, and indicates that most of Mexico's trout exist as small, isolated populations with very restricted ranges. Genetic studies of Truchas Mexicana's specimens demonstrated that the many distinctive lineages found in Mexico are at least as divergent from one another as are their much more thoroughly-studied relatives in the O. mykiss complex in the Western U.S.A. When an opportunity presented itself to list the many still undescribed Mexican forms in the IUCN Red List, as part of a large project to assess the conservation status of the entire Mexican freshwater fish fauna, the authors rapidly compiled the necessary documentation and submitted the required proposal. Once the proposal was accepted, we then worked with IUCN staff to finalize formal conservation assessments that should be published in the Red List about 1 month after this presentation is given at the 2019 meeting. We hope that this official listing of these 12 mostly undescribed Mexican endemic species, with 3 determined to be Critically Endangered (CR), 5 Endangered (EN), 3 Near Threatened (NT), and one Data Deficient (DD), will call attention to this important biodiversity asset and open doors for much-needed financial support for the conservation actions that are so desperately needed. Meanwhile, work continues on the morphologically difficult diagnoses of the new species and their descriptions.
title: Fauna of New Zealand 35: Cydnidae, Acanthosomatidae, and Pentatomidae (Insecta: Heteroptera): systematics, geographical distribution, and bioecology
Creators: name: Larivière, M-C
Publisher: name: Manaaki Whenua Press
Year: 1995

description: The Fauna of New Zealand / Ko te Aitanga Pepeke o Aotearoa monograph series. ISSN: 1179-7193
Starless bias and parameter-estimation bias in the likelihood-based phylogenetic method
Creators: name: Xia, Xuhua
Publisher: name: My University
Year: 2018
Subjects: maximum likelihood
molecular phylogenetics
rate heterogeneity
star-tree paradox
starless

description: I analyzed various site pattern combinations in a 4-OTU case to identify sources of starless bias and parameter-estimation bias in likelihood-based phylogenetic methods, and reported three significant contributions. First, the likelihood method is counterintuitive in that it may not generate a star tree with sequences that are equidistant from each other. This behaviour, dubbed starless bias, happens in a 4-OTU tree when there is an excess (i.e., more than expected from a star tree and a substitution model) of conflicting phylogenetic signals supporting the three resolved topologies equally. Special site pattern combinations leading to rejection of a star tree, when sequences are equidistant from each other, were identified. Second, fitting gamma distribution to model rate heterogeneity over sites is strongly confounded with tree topology, especially in conjunction with the starless bias. I present examples to show dramatic differences in the estimated shape parameter α between a star tree and a resolved tree. There may be no rate heterogeneity over sites (with the estimated α > 10000) when a star tree is imposed, but α < 1 (suggesting strong rate heterogeneity over sites) when an (incorrect) resolved tree is imposed. Thus, the dependence of "rate heterogeneity" on tree topology implies that "rate heterogeneity" is not a sequence-specific feature, cautioning against interpreting a small α to mean that some sites are under strong purifying selection and others not. Thirdly, because there is no existing (and working) likelihood method for evaluating a star tree with continuous gamma-distributed rate, I have implemented the method for JC69 in a self-contained R script for a four-OTU tree (star or resolved), in addition to another R script assuming a constant rate over sites. These R scripts should be useful for teaching and exploring likelihood methods in phylogenetics.
Geometrodynamical Distances to the Galaxy's Hydrogen Streams
Creators: name: Jin, Shoko
name: Lynden-Bell, Donald
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a geometrodynamical method for determining distances to orbital streams of HI gas in the Galaxy. The method makes use of our offset from the Galactic centre and assumes that the gas comprising the stream nearly follows a planar orbit about the Galactic centre. We apply this technique to the Magellanic Stream and determine the distances to all points along it; a consistency check shows that the angular momentum is approximately constant. Applying this technique to the Large Magellanic Cloud itself gives an independent distance which agrees within its accuracy of around 10%. Relaxing the demand for exact conservation of energy and angular momentum at all points along the stream allows for an increase in orbital period between the lagging end and the front end led by the Magellanic Clouds. Similar methods are applicable to other long streams of high-velocity clouds, provided they also nearly follow planar orbits; these would allow otherwise unknown distances to be determined.
description: 9 pages, 7 figures; typos corrected after being accepted by MNRAS
Generating Future Observations to Estimate Grasp Success in Cluttered Environments
Creators: name: Gomes, Daniel Fernandes
name: Mou, Wenxuan
name: Paoletti, Paolo
name: Luo, Shan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Robotics (cs.RO)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: End-to-end self-supervised models have been proposed for estimating the success of future candidate grasps and video predictive models for generating future observations. However, none have yet studied these two strategies side-by-side for addressing the aforementioned grasping problem. We investigate and compare a model-free approach, to estimate the success of a candidate grasp, against a model-based alternative that exploits a self-supervised learnt predictive model that generates a future observation of the gripper about to grasp an object. Our experiments demonstrate that despite the end-to-end model-free model obtaining a best accuracy of 72%, the proposed model-based pipeline yields a significantly higher accuracy of 82%.
title: Fauna of New Zealand 36: Leptophlebiidae (Insecta: Ephemeroptera)
Creators: name: Towns, DR
name: Peters, WL
Publisher: name: Manaaki Whenua Press
Year: 1996

description: The Fauna of New Zealand / Ko te Aitanga Pepeke o Aotearoa monograph series. ISSN: 1179-7193
Implications for room lighting and duration of acclimation protocols on the dosimetry of inhaled drugs in rats
Creators: name: Paul, Graham
name: Somers, Graham
name: Taylor, Glyn
Publisher: name: F1000 Research Limited
Year: 2019

description: Inhalation exposure of animals presents challenges for quantitative dosimetry. ‘Doses’ are frequently calculated using an equation to estimate respired minute volume (RMV) from body weight, which overlooks treatment-related effects on lung function or habituation of animals to procedures. Rats are insensitive to red light and anecdotal data suggested red lighting induced a calmer state in restrained rats.

The influence of lighting and tube restraint acclimation on breath frequency (BF) and minute volume (MV) of rats was investigated during snout-only inhalation exposure. Rats were acclimatised by progressively increasing the tube restraint period over two or six days under normal fluorescent lighting or red-filtered lighting (λ ≥600 nm). BF and MV were measured by head-out plethysmography during a 1-hour exposure. Lungs were taken, homogenised and then analysed for drug by HPLC-MS/MS.

BF and MV were unaffected by illumination of rats under red or white light. Mean data were similar for treatments but more pronounced transient increases in BF and MV were evident for rats acclimatized for two days, which could be mitigated if animals were allowed to settle before aerosol administration.

Measured MV was higher and more variable than body weight-derived estimates suggesting a lack of relationship or potential for body weight-derived values to underestimate RMV. Drug-lung concentrations were more variable than MVs suggesting variability in lung dose was not attributable to dosimetric anomalies alone.
AI incidents and 'networked trouble': The case for a research agenda
Creators: name: Shane, Tommy Shaffer
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computers and Society (cs.CY)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Against a backdrop of widespread interest in how publics can participate in the design of AI, I argue for a research agenda focused on AI incidents - examples of AI going wrong and sparking controversy - and how they are constructed in online environments. I take up the example of an AI incident from September 2020, when a Twitter user created a 'horrible experiment' to demonstrate the racist bias of Twitter's algorithm for cropping images. This resulted in Twitter not only abandoning its use of that algorithm, but also disavowing its decision to use any algorithm for the task. I argue that AI incidents like this are a significant means for participating in AI systems that require further research. That research agenda, I argue, should focus on how incidents are constructed through networked online behaviours that I refer to as 'networked trouble', where formats for participation enable individuals and algorithms to interact in ways that others - including technology companies - come to know and come to care about. At stake, I argue, is an important mechanism for participating in the design and deployment of AI.
Dynamic load balancing strategies for hierarchical p-FEM solvers
Creators: name: Mundani, Ralf-Peter
name: Düster, Alexander
name: Knežević, Jovana
name: Niggl, Andreas
name: Rank, Ernst
Publisher: name: arXiv
Year: 2018
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences
subject: D.1.3

description: Equation systems resulting from a p-version FEM discretisation typically require a special treatment as iterative solvers are not very efficient here. Applying hierarchical concepts based on a nested dissection approach allow for both the design of sophisticated solvers as well as for advanced parallelisation strategies. To fully exploit the underlying computing power of parallel systems, dynamic load balancing strategies become an essential component.
description: 8 pages, 2 figures
Human serum antibodies against EBV latent membrane protein 1 cross-react with α-synuclein
Creators: name: Woulfe, John
name: Gray, Madison T.
name: Ganesh, Munisha S.
name: Middeldorp, Jaap M.
Publisher: name: My University
Year: 2016

description: To identify the epitope on α-synuclein (α-syn) to which antibodies against the Epstein-Barr virus (EBV) latent membrane protein 1 (LMP1) bind and to determine whether antibodies targeting this mimicry domain are present in human sera.
A Deep Reinforcement Learning Approach for Dynamically Stable Inverse Kinematics of Humanoid Robots
Creators: name: Phaniteja, S
name: Dewangan, Parijat
name: Guhan, Pooja
name: Sarkar, Abhishek
name: Krishna, K Madhava
Publisher: name: arXiv
Year: 2018
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Real time calculation of inverse kinematics (IK) with dynamically stable configuration is of high necessity in humanoid robots as they are highly susceptible to lose balance. This paper proposes a methodology to generate joint-space trajectories of stable configurations for solving inverse kinematics using Deep Reinforcement Learning (RL). Our approach is based on the idea of exploring the entire configuration space of the robot and learning the best possible solutions using Deep Deterministic Policy Gradient (DDPG). The proposed strategy was evaluated on the highly articulated upper body of a humanoid model with 27 degree of freedom (DoF). The trained model was able to solve inverse kinematics for the end effectors with 90% accuracy while maintaining the balance in double support phase.
title: Fauna of New Zealand 37: Coleoptera: family-group review and keys to identification
Creators: name: Klimaszewski, J
name: Watt, JC
Publisher: name: Manaaki Whenua Press
Year: 1997

description: The Fauna of New Zealand / Ko te Aitanga Pepeke o Aotearoa monograph series. ISSN: 1179-7193
Epidemic modelling requires knowledge of the social network
Creators: name: Johnson, Samuel
Publisher: name: arXiv
Year: 2024
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Compartmental models of epidemics are widely used to forecast the effects of communicable diseases such as COVID-19 and to guide policy. Although it has long been known that such processes take place on social networks, the assumption of random mixing is usually made, which ignores network structure. However, super-spreading events have been found to be power-law distributed, suggesting that the underlying networks may be scale free or at least highly heterogeneous. The random-mixing assumption would then produce an overestimation of the herd-immunity threshold for given $R_0$; and a (more significant) overestimation of $R_0$ itself. These two errors compound each other, and can lead to forecasts greatly overestimating the number of infections. Moreover, if networks are heterogeneous and change in time, multiple waves of infection can occur, which are not predicted by random mixing. A simple SIR model simulated on both Erdős-Rényi and scale-free networks shows that details of the network structure can be more important than the intrinsic transmissibility of a disease. It is therefore crucial to incorporate network information into standard models of epidemics.
description: This is the Accepted Manuscript version of an article accepted for publication in Journal of Physics: Complexity. IOP Publishing Ltd is not responsible for any errors or omissions in this version or any version derived from it. This Accepted Manuscript is published under a CC BY licence. The Version of Record is available online at: https://iopscience.iop.org/article/10.1088/2632-072X/ad19e0
Vectorial near-field coupling
Creators: name: Esmann, Martin
name: Becker, Simon F.
name: Witt, Julia
name: Vogelgesang, Ralf
name: Wittstock, Gunther
name: Lienau, Christoph
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The coherent exchange of optical near fields between two neighboring dipoles plays an essential role for the optical properties, quantum dynamics and thus for the function of many naturally occurring and artificial nanosystems. These interactions are inherently short-ranged, extending over a few nanometers only, and depend sensitively on relative orientation, detuning and dephasing, i.e., on the vectorial properties of the coupled dipolar near fields. This makes it challenging to analyze them experimentally. Here, we introduce plasmonic nanofocusing spectroscopy to record coherent light scattering spectra with 5-nm spatial resolution from a small dipole antenna, excited solely by evanescent fields and coupled to plasmon resonances in a single gold nanorod. We resolve mode couplings, resonance energy shifts and Purcell effects as a function of dipole distance and relative orientation, and show how they arise from different vectorial components of the interacting optical near-fields. Our results pave the way for using dipolar alignment to control the optical properties and function of nanoscale systems.
The cost benefit analysis of the implementation of photovoltaic solar system in Saudi Arabia
Creators: name: Mouawad, Mariam
Publisher: name: My University
Year: 2019

description: The Middle Eastern Kingdom of Saudi Arabia (KSA) is the 14th largest country in the world and one of countries that burn crude oil directly for power generation. In response to the rising costs of the fossil fuels used in generating the electricity required to meet its continuously increasing electricity demand and the negative environmental impact of burning fossil fuels, Saudi Arabia is planning to more than double its available generating capacity from 58 GW to 120 GW by developing solar and nuclear power generation. This paper demonstrates the economic feasibility and viability of a 3.5 MW photovoltaic solar energy station at the investment cost of $4/kW, 15% efficiency, and 10% interest rate. A cost-benefit analysis demonstrates that when the savings in fossil fuels and the decrease in CO2 emissions of an oil-fired generating plant are taken into account, the levelized cost of electricity of a photovoltaic solar energy system and that of an oil-fired generating plant are the same at $0.07/kWh. The results of the cost-benefit analysis is further strengthened when one looks at the learning curve of the photovoltaic technology, which predicts that the levelized cost of electricity of a photovoltaic solar energy system will be lower than that of any traditional technology used in generating electricity, including coal-fired and gas-fired generating plants.
Imaging Freeze-out Sources and Extracting Strong Interaction Parameters in Relativistic Heavy-Ion Collisions
Creators: name: Xu, Junhuai
name: Qin, Zhi
name: Zou, Renjie
name: Si, Dawei
name: Xiao, Sheng
name: Tian, Baiting
name: Wang, Yijie
name: Xiao, Zhigang
Publisher: name: arXiv
Year: 2024
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: By combining femtoscopic interferometry with an optical deblurring algorithm, we present a novel method to image the source in heavy-ion collisions (HICs) while simultaneously determining the interaction strength between particle pairs. The spatial distribution of the emission source has been reconstructed for protons ($p$) and antiprotons ($\bar{p}$) from the respective $pp$ and $\bar{p}\bar{p}$ correlation functions in Au+Au collisions at $\sqrt{S_{\rm NN}}=200$ GeV. Within experimental uncertainties, protons and antiprotons share the same freeze-out distribution showing higher density in the center compared to the widely assumed Gaussian shape. The results evidence the matter-antimatter symmetry in coordinate space at the moment of freeze-out before the nucleons are fully randomized in the collisions.
Le décrochage et le raccrochage scolaires de jeunes adultes inscrits en formation professionnelle en Ontario et au Québec : vers une sortie de la marginalité?
Creators: name: Beauchesne, Joël
Publisher: name: My University
Year: 2018

description: Cette recherche a comme objectif principal de comprendre le point de vue des jeunes adultes vivant une situation de raccrochage scolaire. Après avoir présenté le phénomène et l’évolution historique du décrochage scolaire, les conséquences d’une sortie précoce de l’institution scolaire et les raisons menant au décrochage, ce mémoire présente son « contre-courant », c’est-à-dire le raccrochage scolaire. Le modèle théorique de l’intégration de Robert Castel (Castel, 1994; 2000) est utilisé pour comprendre le parcours de jeunes adultes qui décident de cheminer dans une formation professionnelle (FP) ou un Centre d’Éducation aux Adultes (CEA). Ce modèle s’intéresse, d’une part, à deux concepts très peu abordés dans un contexte de raccrochage scolaire soit ceux de la vulnérabilité et de la marginalité. D’autre part, le modèle tient compte des transformations du marché du travail et des relations sociales qui touchent directement les jeunes. Sur le plan méthodologique, ce mémoire propose l’analyse secondaire de données qualitatives issues d’entrevues semi-dirigées menées auprès de neuf jeunes adultes ayant effectué un retour aux études. L’étude des transcriptions de ces entrevues permet de décrire les points de départ des parcours de ces jeunes adultes (avant leur entrée dans un programme de formation professionnelle au secondaire) et d’analyser les divers niveaux de vulnérabilité associés au retour à l’école. Ce mémoire de maîtrise permet de réfléchir aux inégalités dans le monde de l’éducation et à l’apport des formes de soutien pour surmonter les situations de vulnérabilité. Mots clés : Vulnérabilité, marginalité, inégalité, jeunes adultes, décrochage scolaire, raccrochage scolaire, soutiens, travail, emploi, parcours, ressources.
Coupled magnetic and ferroelectric states in the distorted honeycomb system Fe$_{4}$Ta$_{2}$O$_{9}$
Creators: name: Panja, Soumendra Nath
name: Harnagea, Luminita
name: Kumar, Jitender
name: Mukharjee, P. K.
name: Nath, R.
name: Nigam, A. K.
name: Nair, Sunil
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report on the magnetic, thermodynamic, dielectric, and pyroelectric measurements on the hitherto unreported Fe${_4}$Ta${_2}$O${_9}$. This system is seen to exhibit a series of magnetic transitions, many of which are coupled to the emergence of ferroelectric order, making Fe${_4}$Ta${_2}$O${_9}$ the only genuine multiferroic in its material class. We suggest that the observed properties arise as a consequence of an effective reduction in the dimensionality of the magnetic lattice, with the magnetically active Fe${^{2+}}$ ions preferentially occupying a quasi 2D buckled honeycomb structure. The low temperature $H$-$T$ phase diagram of Fe${_4}$Ta${_2}$O${_9}$ reveals a rich variety of coupled magnetic and ferroelectric phases, in similarity with that observed in the distorted Kagome systems.
Additional file 1 of Comparative transcriptome analyses on terpenoids metabolism in field- and mountain-cultivated ginseng roots
Creators: name: Fan, Hang
name: Li, Ke
name: Yao, Fan
name: Sun, Liwei
name: Liu, Yujun
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Table S3. Quality control of sequencing. (DOCX 14 kb)
On the possible contributions of two nearby blazars to the NGC 4151 neutrino hotspot
Creators: name: Omeliukh, Anastasiia
name: Barnier, Samuel
name: Inoue, Yoshiyuki
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The origin of the high-energy astrophysical neutrinos discovered by IceCube remains unclear, with both blazars and Seyfert galaxies emerging as potential sources. Recently, the IceCube Collaboration reported a ${\sim}{3}σ$ neutrino signal from the direction of a nearby Seyfert galaxy NGC 4151. However, two gamma-ray loud BL Lac objects, 4FGL 1210.3+3928 and 4FGL J1211.6+3901, lie close to NGC 4151, at angular distances of 0.08$^\circ$ and 0.43$^\circ$, respectively. We investigate the potential contribution of these two blazars to the observed neutrino signal from the direction of NGC 4151 and assess their detectability with future neutrino observatories. We model the multi-wavelength spectral energy distributions of both blazars using a self-consistent numerical radiation code, AM$^3$. We calculate their neutrino spectra and compare them to the measured NGC 4151 neutrino spectrum and future neutrino detector sensitivities. Our models predict neutrino emission peaking at $\sim$10$^{17}$ eV for both blazars, with fluxes of ${\sim}10^{-12}~\mathrm{erg~cm^{-2}~s^{-1}}$. This indicates their contribution to the $\sim$10 TeV neutrino signal observed from the direction of NGC 4151 is minor. While detection with current facilities is challenging, both sources should be detectable by future radio-based neutrino telescopes such as IceCube-Gen2's radio array and GRAND, with 4FGL~J1210.3+3928 being the more promising candidate.
description: 6 pages, 5 figures. Submitted to A&A Letters
Canadians still twice as likely to say Canada is doing a poor rather than good job on energy issues – consensus opinions emerging on national interest being more important, oil and gas being on the decline and a need for more partnerships
Creators: name: Positive Energy
name: Nanos Research
Publisher: name: My University
Year: 2019
Subjects: Climate change
Energy policy
Indigenous Peoples
Oil and Gas
Public Opinion
Energy Transition

description: This national survey commissioned by the University of Ottawa (September 2019) gauges beliefs and attitudes on energy policy issues: knowledge and interest, appraisal of policy dilemmas involving levels of public authority, Indigenous Peoples, communities, and tradeoffs concerning climate change and the transformation of the energy system towards low emitting technologies.
title: Fauna of New Zealand 39: Molytini (Insecta: Coleoptera: Curculionidae: Molytinae)
Creators: name: Craw, RC
Publisher: name: Manaaki Whenua Press
Year: 1999

description: The Fauna of New Zealand / Ko te Aitanga Pepeke o Aotearoa monograph series. ISSN: 1179-7193
SCoRe - Student Crowd Research - Standort Universität Bremen (Research Center University of Bremen)
Creators: name: SCoRe Research Center University Of Bremen.
name: Müller-Christ, G.
name: Joachims, J.
name: Vagts, T.
name: Ahel, O.
name: Seyfried, L.M.
name: Schirmer, M.
Publisher: name: Zenodo
Year: 2022
Subjects: Education

description: Videobasiertes Lernen durch Forschung zur Nachhaltigkeit: Student Crowd Research (SCoRe) SCoRe ist ein Forschungsprojekt, das im Forschungsfeld der digitalen Hochschulbildung verortet werden kann. Mit fünf Teilprojekten arbeiten wir gemeinsam an einer Lernumgebung für studentische Forschungsprojekte zu Nachhaltigkeitsfragen und an wissenschaftlichen Erkenntnissen: zur Bildung für nachhaltige Entwicklung [Link: https://www.uni-bremen.de/nm/] (Team der Universität Bremen, Prof. Dr. Georg Müller-Christ), zum forschenden Lernen [Link: https://www.hul.uni-hamburg.de/] (Team der Universität Hamburg, Prof. Dr. Gabi Reinmann), zum Lernen in der Crowd [Link: https://www.medienpaedagogik.uni-kiel.de/de] (Team der Christian-Albrecht-Universität Kiel, Prof. Dr. Heidrun Allert), zum studentischen Forschen mit (360°-)Video [Link: http://www.360total.de/koepfe/] (Team der Hochschule Macromedia, Hamburg, Prof. Dr. Andreas Hebbel-Seeger) und zum Social Video Learning [Link: https://ghostthinker.de/] (Team der Ghostthinker GmbH, Dr. Frank Vohle). Möglich ist die doppelte Zielsetzung in Bildung und Forschung durch Design-Based Research (DBR), in dem bildungspraktische und Forschungsziele grundsätzlich eng verknüpft sind. Im DBR-Projekt beschäftigen wir uns mit der Frage, wie eine Plattform unter Nutzung interaktiver Videofunktionen gestaltet sein muss, um Studierende zu einer forschenden Auseinandersetzung mit Nachhaltigkeit anzuregen und diese im Kontext einer Gruppe von Vielen (Crowd) zu begleiten. Als Resultat erwarten wir eine videobasierte Lernplattform für die Lehre, die sich zum fachnahen sowie inter- und transdisziplinären Lernen und Forschen zur Nachhaltigkeit eignet und dabei die hohe Zahl der Studierenden aus verschiedensten Standorten im ganzen Bundesgebiet gezielt nutzt.
description: See also further data of the SCoRe project in the research data management of further Reserach center, which have also been deposited at Zenodoo. See also README File.