cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MOESM1 of Computer-aided design of multi-target ligands at A1R, A2AR and PDE10A, key proteins in neurodegenerative diseases
Creators: name: Kalash, Leen
name: Val, Cristina
name: Jhonny Azuaje
name: Loza, María
name: Svensson, Fredrik
name: Azedine Zoufir
name: Mervin, Lewis
name: Ladds, Graham
name: Brea, José
name: Glen, Robert
name: Sotelo, Eddy
name: Bender, Andreas
Publisher: name: figshare
Year: 2017
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Additional file 1. Supplementary data describing substructural analysis of extracted ChEMBL compounds, statistical analysis of enriched target prediction of RECAP compounds, separation in medians of active/inactive docking score distributions for the docking models, computed logP and tPSA values and selectivity profiling data for compounds 1–25, docking parameters used, scripts for compound extraction from the ChEMBL database, computation of Mann–Whitney test and F1 scores.
Homological properties of modules with finite weak injective and weak flat dimensions
Creators: name: Zhao, Tiwei
Publisher: name: arXiv
Year: 2017
Subjects: subject: Rings and Algebras (math.RA)
subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: In this paper, we define a class of relative derived functors in terms of left or right weak flat resolutions to compute the weak flat dimension of modules. Moreover, we investigate two classes of modules larger than that of weak injective and weak flat modules, study the existence of covers and preenvelopes, and give some applications.
description: Published online in the journal of Bulletin of the Malaysian Mathematical Sciences Society, 09 april 2016
On the Turaev genus of torus knots
Creators: name: Jin, Kaitian
name: Lowrance, Adam M.
name: Polston, Eli
name: Zheng, Yanjie
Publisher: name: arXiv
Year: 2017
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25, 57M27

description: The Turaev genus and dealternating number of a link are two invariants that measure how far away a link is from alternating. We determine the Turaev genus of a torus knot with five or fewer strands either exactly or up to an error of at most one. We also determine the dealternating number of a torus knot with five or fewer strand up to an error of at most two. Additional bounds are given on the Turaev genus and dealternating number of torus links with five or fewer strands and on some infinite families of torus links on six strands.
description: 24 pages, 18 figures
HI-to-H2 Transition Layers in the Star-Forming Region W43
Creators: name: Bialy, Shmuel
name: Bihr, Simon
name: Beuther, Henrik
name: Henning, Thomas
name: Sternberg, Amiel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The process of atomic-to-molecular (HI-to-H$_2$) gas conversion is fundamental for molecular-cloud formation and star formation. 21 cm observations of the star-forming region W43 revealed extremely high HI column densities, of 120-180 M$_{\odot}$ pc$^{-2}$, a factor of 10-20 larger than predicted by HI-to-H$_2$ transition theories. We analyze the observed HI with an HI-to-H$_2$ transition theoretical model, and show that the theory-observation discrepancy cannot be explained by the intense radiation in W43, nor by variations of the assumed volume density or H$_2$ formation-rate coefficient. We show that the large observed HI columns are naturally explained by several ($9-22$) HI-to-H$_2$ transition layers, superimposed along the sightlines of W43. We discuss other possible interpretations such as a non-steady-state scenario, and inefficient dust absorption. The case of W43 suggests that HI thresholds reported in extra-galactic observations are probably not associated with a single HI-to-H$_2$ transition, but are rather a result of several transition layers (clouds) along the sightlines, beam-diluted with diffuse inter-cloud gas.
description: 5 pages, 2 figures. ApJ accepted. Comments welcome
Graph of Virtual Actors (GOVA): a Big Data Analytics Architecture for IoT
Creators: name: Dang-Ha, The-Hien
name: Roverso, Davide
name: Olsson, Roland
Publisher: name: arXiv
Year: 2017
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: With the emergence of cloud computing and sensor technologies, Big Data analytics for the Internet of Things (IoT) has become the main force behind many innovative solutions for our society's problems. This paper provides practical explanations for the question "why is the number of Big Data applications that succeed and have an effect on our daily life so limited, compared with all of the solutions proposed and tested in the literature?", with examples taken from Smart Grids. We argue that "noninvariants" are the most challenging issues in IoT applications, which can be easily revealed if we use the term "invariant" to replace the more common terms such as "information", "knowledge", or "insight" in any Big Data for IoT research. From our experience with developing Smart Grid applications, we produced a list of "noninvariants", which we believe to be the main causes of the gaps between Big Data in a laboratory and in practice in IoT applications. This paper also proposes Graph of Virtual Actors (GOVA) as a Big Data analytics architecture for IoT applications, which not only can solve the noninvariants issues, but can also quickly scale horizontally in terms of computation, data storage, caching requirements, and programmability of the system.
description: 8 pages, 4 figures
The $β$ Pictoris b Hill sphere transit campaign. Paper II: Searching for the signatures of the $β$ Pictoris exoplanets through time delay analysis of the $δ$ Scuti pulsations
Creators: name: Zieba, Sebastian
name: Zwintz, Konstanze
name: Kenworthy, Matthew
name: Hey, Daniel
name: Murphy, Simon J.
name: Kuschnig, Rainer
name: Abe, Lyu
name: Agabi, Abdelkrim
name: Mekarnia, Djamel
name: Guillot, Tristan
name: Schmider, François-Xavier
name: Stee, Philippe
name: De Pra, Yuri
name: Buttu, Marco
name: Crouzet, Nicolas
name: Mellon, Samuel
name: Bailey, Jeb
name: Stuik, Remko
name: Dorval, Patrick
name: Talens, Geert-Jan J.
name: Crawford, Steven
name: Mamajek, Eric
name: Laginja, Iva
name: Ireland, Michael
name: Lomberg, Blaine
name: Kuhn, Rudi
name: Snellen, Ignas
name: Kalas, Paul
name: Wang, Jason J.
name: Stevenson, Kevin B.
name: de Mooij, Ernst
name: Lagrange, Anne-Marie
name: Lacour, Sylvestre
name: Nowak, Mathias
name: Strøm, Paul A.
name: Hui, Zhang
name: Wang, Lifan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The $β$ Pictoris system is the closest known stellar system with directly detected gas giant planets, an edge-on circumstellar disc, and evidence of falling sublimating bodies and transiting exocomets. The inner planet, $β$ Pictoris c, has also been indirectly detected with radial velocity (RV) measurements. The star is a known $δ$ Scuti pulsator, and the long-term stability of these pulsations opens up the possibility of indirectly detecting the gas giant planets through time delays of the pulsations due to a varying light travel time. We search for phase shifts in the $δ$ Scuti pulsations consistent with the known planets $β$ Pictoris b and c and carry out an analysis of the stellar pulsations of $β$ Pictoris over a multi-year timescale. We used photometric data collected by the BRITE-Constellation, bRing, ASTEP, and TESS to derive a list of the strongest and most significant $δ$ Scuti pulsations. We carried out an analysis with the open-source python package maelstrom to study the stability of the pulsation modes of $β$ Pictoris in order to determine the long-term trends in the observed pulsations. We did not detect the expected signal for $β$ Pictoris b or $β$ Pictoris c. The expected time delay is 6 seconds for $β$ Pictoris c and 24 seconds for $β$ Pictoris b. With simulations, we determined that the photometric noise in all the combined data sets cannot reach the sensitivity needed to detect the expected timing drifts. An analysis of the pulsational modes of $β$ Pictoris using maelstrom showed that the modes themselves drift on the timescale of a year, fundamentally limiting our ability to detect exoplanets around $β$ Pictoris via pulsation timing.
description: 16 pages, 16 figures, 4 tables, accepted for publication in A&A
Characterising the Impact of systematic flat-fielding errors In Huntsman telescope data
Creators: name: Longbottom, Fergus
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: The Huntsman Telescope is a new facility being commissioned at Siding Spring Observatory in Australia. It consists of an array of Canon telephoto lenses. In order to circumvent the systematic errors known to affect mirror based instruments, the Canon lenses act together as a single refracting telescope. They reduce the scattering of light within the optical path,which allows fainter limiting surface brightness levels to be reached. However, at these low surface brightness levels other sources of systematic error must be carefully investigated and scrutinised. In this thesis I will investigate one of the primary sources of systematic error in low surface brightness imaging, flat fielding uncertainties, and how it impacts the Huntsman Telescope.
AngularJS Performance: A Survey Study
Creators: name: Ramos, Miguel
name: Valente, Marco Tulio
name: Terra, Ricardo
Publisher: name: arXiv
Year: 2017
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: AngularJS is a popular JavaScript MVC-based framework to construct single-page web applications. In this paper, we report the results of a survey with 95 professional developers about performance issues of AngularJS applications. We report common practices followed by developers to avoid performance problems (e.g., use of third-party or custom components), the general causes of performance problems in AngularJS applications (e.g., inadequate architecture decisions taken by AngularJS users), and the technical and specific causes of performance problems (e.g., unnecessary processing included in the digest cycle, which is the internal computation that automatically updates the view with changes detected in the model).
description: Accepted at IEEE Software
Obscured Active Galactic Nuclei triggered in compact star-forming galaxies
Creators: name: Chang, Yu-Yen
name: Floc'h, Emeric Le
name: Juneau, Stéphanie
name: da Cunha, Elisabete
name: Salvato, Mara
name: Civano, Francesca
name: Marchesi, Stefano
name: Gabor, J. M.
name: Ilbert, Olivier
name: Laigle, Clotilde
name: McCracken, H. J.
name: Hsieh, Bau-Ching
name: Capak, Peter
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a structural study of 182 obscured Active Galactic Nuclei (AGNs) at z<=1.5, selected in the COSMOS field from their extreme infrared to X-ray luminosity ratio and their negligible emission at optical wavelengths. We fit optical to far-infrared spectral energy distributions and analyze deep HST imaging to derive the physical and morphological properties of their host galaxies. We find that such galaxies are more compact than normal star-forming sources at similar redshift and stellar mass, and we show that it is not an observational bias related to the emission of the AGN. Based on the distribution of their UVJ colors, we also argue that this increased compactness is not due to the additional contribution of a passive bulge. We thus postulate that a vast majority of obscured AGNs reside in galaxies undergoing dynamical compaction, similar to processes recently invoked to explain the formation of compact star-forming sources at high redshift.
description: Accepted for publication in MNRAS Letter
Mind Mansion: Exploring Metaphorical Interactions to Engage with Negative Thoughts in Virtual Reality
Creators: name: Rasch, Julian
name: Zender, Michelle Johanna
name: Sakel, Sophia
name: Wagener, Nadine
Publisher: name: arXiv
Year: 2024
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Recurrent negative thoughts can significantly disrupt daily life and contribute to negative emotional states. Facing, confronting, and noticing such thoughts without support can be challenging. To provide a playful setting and leverage the technical maturation of Virtual Reality (VR), our VR experience, Mind Mansion, places the user in an initially cluttered virtual apartment. Here we utilize established concepts from traditional therapy and metaphors identified in prior works to let users engage metaphorically with representations of thoughts, gradually sorting the space, fostering awareness of thoughts, and supporting mental self-care. The results of our user study (n = 30) reveal that Mind Mansion encourages the exploration of alternative perspectives, fosters acceptance, and potentially offers new coping mechanisms. Our findings suggest that this VR intervention can reduce negative affect and improve overall emotional awareness.
description: To appear in Proceedings of the Designing Interactive Systems Conference (DIS '24), July 1-5, 2024, IT University of Copenhagen, Denmark
Effect of Induced Refractive Error and Nuclear Sclerotic Cataracts on Ishihara Colour Plate Testing
Creators: name: Eneh AA
name: Rogalska T
name: Urton T
name: Schweitzer KD
Publisher: name: figshare
Year: 2017
Subjects: Diseases

description: Objective: To determine the effect of induced refractive blur and nuclear sclerotic (NS) cataracts on Ishihara colour plate (ICP) scores. Design: Prospective evaluation of a diagnostic test Participants: Patients who presented to Hotel Dieu Hospital Eye clinic between January and March 2010 with either a lone diagnosis of nuclear sclerotic cataracts, or with no identified ocular disease with complete examination. Methods: Patients were divided into two groups: those having no identified ocular disease on examination, and those with a lone diagnosis of NS cataracts. The first group was refractively blurred with +3D, +6D, +9D and +12D lenses. Best corrected visual acuity (BCVA) at near and ICP scores was obtained from both groups. Results: There were 20 patients in each group. BCVA at near and ICP values declined with increasing amounts of plus lenses as expected. With the application of the +3D, +6D, +9D, and +12D lenses, the association between ICP scores and BCVA at near decreased (-0.845, -0.678, -0.374, and -0.363 respectively). There was little clinical decline in absolute ICP scores until lenses of +9D (mean BCVA at near = 20/400) or greater were applied. The correlation between ICP scores and BCVA at near declines due to NS cataracts was -0.53. Conclusion: ICP testing is valid to BCVA at near of 20/100 when the acuity decline is due solely to NS cataracts. Further study is required to determine whether or not severe vision loss due to NS cataracts affects ICP scores and at what visual acuity.
Lettre de Jean-François Séguier à Johannes Gessner, 1749-11-30
Creators: name: Séguier, Jean-François
name: Jean-François Séguier
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021

description: Source: [lieu de Conservation] Leipzig, Universitätsbibliothek [cote]Autographensammlung Römer / NL 136
Turbulent magnetic relaxation in pulsar wind nebulae
Creators: name: Zrake, Jonathan
name: Arons, Jonathan
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a model for magnetic energy dissipation in a pulsar wind nebula. Better understanding of this process is required to assess the likelihood that certain astrophysical transients may be powered by the spin-down of a "millisecond magnetar." Examples include superluminous supernovae, gamma-ray bursts, and anticipated electromagnetic counterparts to gravitational wave detections of binary neutron star coalescence. Our model leverages recent progress in the theory of turbulent magnetic relaxation to specify a dissipative closure of the stationary magnetohydrodynamic (MHD) wind equations, yielding predictions of the magnetic energy dissipation rate throughout the nebula. Synchrotron losses are treated self-consistently. To demonstrate the model's efficacy, we show that it can reproduce many features of the Crab Nebula, including its expansion speed, radiative efficiency, peak photon energy, and mean magnetic field strength. Unlike ideal MHD models of the Crab (which lead to the so-called sigma problem) our model accounts for the transition from ultra to weakly magnetized plasma flow, and for the associated heating of relativistic electrons. We discuss how the predicted heating rates may be utilized to improve upon models of particle transport and acceleration in pulsar wind nebulae. We also discuss implications for the Crab Nebula's gamma-ray flares, and point out potential modifications to models of astrophysical transients invoking the spin-down of a millisecond magnetar.
description: Submitted to ApJ
Autonomous control system with drag meaurement capaility for a wind tunnel model vehicle
Creators: name: Mahmud, Shadeed
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: In order to understand the aerodynamics of a model, wind tunnel testing is crucial and in wind tunnel testing there needs to be an accurate correlation between the environment inside the tunnel and the environment on the road. In the automotive industry, to make the test environment more realistic, a model vehicle being analyzed is now placed on a rolling road to simulate a moving ground. Inside wind tunnels as such, these models are supported by structures such as struts so that it can be held in place and a system of balance connected to these struts is used to measure the aerodynamic forces such as drag. These structures, however, interfere with wind tunnel results and it is standard practice to correct wind tunnel results for a model with and without presence of support structures. In order to make the wind tunnel test environment more realistic and results more accurate thus enabling us to understand the complete aerodynamics of a model, an advanced alternative is proposed and researched in this project. This project is about the development of an autonomous control system that can maintain a model vehicle's position inside a wind tunnel over a moving ground with high degree of accuracy and measure the drag the vehicle is experiencing. This thesis reviews existing technology in the field of wind tunnel testing and autonomous driving and discusses the development of an advanced mathematical algorithm for the aimed control system.
Is There Blinding Onchocerciasis in Northern Uganda?
Creators: name: T.L. Lakwo
name: B. Watmon
name: A.W. Onapa3
Publisher: name: figshare
Year: 2017
Subjects: Diseases

description: Background: Onchocerciasis is a filarial nematode Onchocerca volvulus transmitted by female black flies which breeds in fast flowing rivers. Clinical manifestations is ocular or skin lesions. The long-term armed conflict in northern Uganda deprived research on onchocerciasis and no attempts have been made to establish the clinical manifestation of the disease in the region. Objective: To establish whether Simulium damnosum transmitted onchocerciasis in this region was blinding. Participants: Persons from thirteen endemic parishes in Pader district in northern Uganda were examined for clinical, parasitological and ocular manifestations of onchocerciasis. Results: A total of 675 persons were examined and microfilaria prevalence in skin snips was 28%, while nodules and onchodermatitis were 30% and 29% respectively. The commonest skin lesion was Chronic Papular Onchodermatitis (17.5%). However, the prevalence of both microfilaria in the anterior chamber of the eye and reversible ocular lesions was 4%. The reversible ocular lesions of onchocerciasis observed were punctate keratitis stage B (0.1%), punctate keratitis stage D (0.1%) and punctate keratitis stage E (3.7%). While 16.1% of the respondents had irreversible ocular lesions attributed mainly to Optic atrophy (6.4%) and sclerosing keratitis (5.2%). There was significant association between irreversible onchocerciasis lesions and visual loss (p< 0.0001). Conclusion: This study confirmed the occurrence of blinding onchocerciasis in Pader district, the first ever reported in indigenous populations in Uganda.
LifeCourse Metadata and Measure Map
Creators: name: Paiva, Tehani
name: O'Connor, Meredith
Publisher: name: Murdoch Childrens Research Institute
Year: 2024
Subjects: Uncategorised

description:   
Metadata is ‘data about data’. Within LifeCourse, we collate study and measure metadata from each of our cohorts to showcase what kind of data has been collected. Examples of metadata include when the data was collected (e.g. calendar year), how the data was collected (e.g. questionnaires), whom the data was collected from (e.g. parent report), and the specific measure used (e.g. Strengths and Difficulties Questionnaire). Collating and showcasing this metadata is crucial to assign meaning to the cohort data, and make it more reusable for the future. The LifeCourse metadata catalogue (accessed here: https://lifecourse.melbournechildrens.com/measurement-library/) organises this metadata in a browsable and searchable format. This allows data custodians and potential data users to browse the measures used within the LifeCourse cohorts, and the constructs (e.g. Food allergy, Depression) that these measures assess, across time points, age ranges, and cohorts. 
This workbook contains a comprehensive list of the constructs assessed by the LifeCourse cohorts and the measures they are mapped to. These constructs are derived from the SNOMED CT-AU ontology, aligning the terminology used in-house to international standards.
Period-luminosity relations of fast-rotating B-type stars in the young open cluster NGC3766
Creators: name: Saio, H.
name: Ekström, S.
name: Mowlavi, N.
name: Georgy, C.
name: Saesen, S.
name: Eggenberger, P.
name: Semaan, T.
name: Salmon, S. J. A. J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the pulsational properties of rapidly rotating main-sequence B-type stars using linear non-adiabatic analysis of non-radial low-frequency modes taking into account the effect of rotation. We compare the properties of prograde sectoral $g$ and retrograde $r$ modes excited by the $κ$ mechanism at the Fe opacity peak with the newly discovered period-luminosity relation that is obeyed by a group of fast-rotating B-type stars in the young open cluster NGC 3766. The observed relation consists of two sequences in the period versus magnitude diagram, at periods shorter than 0.5 days. We find that this property is consistent with similar period-luminosity relations predicted for excited sectoral prograde $g$-modes of azimuthal orders $m=-1$ and $m=-2$ in fast-rotating stars along an isochrone. We further show that some of the rapidly rotating stars that have photometric variability with periods longer than a day may be caused by $r$-mode pulsation predicted to be excited in these stars. One fast-rotating star, in particular, shows both short and long periods that can be explained by the simultaneous excitation of $g$- and $r$-mode pulsations in models of fast-rotating stars.
description: 11 pages, 10 figures, accepted for publication in MNRAS
Homological theory of representations having pure acyclic injective resolutions
Creators: name: Yang, Gang
name: Li, Qihui
name: Wang, Junpeng
Publisher: name: arXiv
Year: 2024
Subjects: subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 16G20, 18A40, 18G05, 18G20

description: Let $Q$ be a quiver and $R$ an associative ring. A representation by $R$-modules of $Q$ is called strongly fp-injective if it admits a pure acyclic injective resolution in the category of representations. It is shown that such representations possess many nice properties. We characterize strongly fp-injective representations under some mild assumptions, which is closely related to strongly fp-injective $R$-modules. Subsequently, we use such representations to define relative Gorenstein injective representations, called Gorenstein strongly fp-injective representations, and give an explicit characterization of the Gorenstein strongly fp-injective representations of right rooted quivers. As an application, a model structure in the category of representations is given.
description: 27 pages
Human dynamics and the intergenerational farm transfer process in later life: A roadmap for future generational renewal in agriculture policy
Creators: name: Conway, Shane Francis
name: McDonagh, John
name: Farrell, Maura
name: Kinsella, Anne
name: Conway, Shane Francis
name: McDonagh, John
name: Farrell, Maura
name: Kinsella, Anne
Publisher: name: Unknown
Year: 2019
Subjects: subject: Farm Management
subject: Labor and Human Capital
subject: generational renewal
subject: family farming
subject: succession
subject: retirement
subject: land mobility

description: The senior generation’s reluctance and indeed resistance to alter the status quo of the existing management and ownership structure of their family farm is undoubtedly strong within the farming community. This phenomenon has resulted in extraordinary socio-economic challenges for young people aspiring to embark on a career in farming. The reasons why older farmers fail to plan effectively and expeditiously for the future are expansive, and range from the potential loss of identity, status and power that may occur as a result of engaging in the process, to the intrinsic multi-level relationship farmers have with their farms. These so-called ‘soft issues’ i.e. the emotional and social dimensions involved, are the issues that distort and dominate the older generation’s decisions on the future trajectory of the farm. These really are the ‘hard issues’. This paper draws on three interrelated journal articles exploring the complex human dynamics influencing the decision-making processes surrounding farm succession and retirement to put forth a series of recommendations that sensitively deal with problematic issues surrounding generational renewal in agriculture, whilst also ensuring farmers’ emotional wellbeing in later life.
Accretion and Magnetic Reconnection in the Classical T Tauri Binary DQ Tau
Creators: name: Tofflemire, Benjamin M.
name: Mathieu, Robert D.
name: Ardila, David R.
name: Akeson, Rachel L.
name: Ciardi, David R.
name: Johns-Krull, Christopher
name: Herczeg, Gregory J.
name: Quijano-Vodniza, Alberto
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Binary star-formation theory predicts that close binaries (a<100 AU) will experience periodic pulsed accretion events as streams of material form at the inner edge of a circumbinary disk, cross a dynamically cleared gap, and feed circumstellar disks or accrete directly onto the stars. The archetype for the pulsed-accretion theory is the eccentric, short-period, classical T Tauri binary DQ Tau. Low-cadence (~daily) broadband photometry has shown brightening events near most periastron passages, just as numerical simulations would predict for an eccentric binary. Magnetic reconnection events (flares) during the collision of stellar magnetospheres near periastron could, however, produce the same periodic, broadband behavior when observed at a one-day cadence. To reveal the dominate physical mechanism seen in DQ Tau's low-cadence observations, we have obtained continuous, moderate-cadence, multi-band photometry over 10 orbital periods, supplemented with 27 nights of minute-cadence photometry centered on 4 separate periastron passages. While both accretion and stellar flares are present, the dominant timescale and morphology of brightening events are characteristic of accretion. On average, the mass accretion rate increases by a factor of 5 near periastron, in good agreement with recent models. Large variability is observed in the morphology and amplitude of accretion events from orbit-to-orbit. We argue this is due to the absence of stable circumstellar disks around each star, compounded by inhomogeneities at the inner edge of the circumbinary disk and within the accretion streams themselves. Quasi-periodic apastron accretion events are also observed, which are not predicted by binary accretion theory.
description: Accepted to ApJ, 17 pages, 11 figures
Effect of Rashba splitting on RKKY interaction in topological insulator thin films
Creators: name: Shiranzaei, Mahroo
name: Parhizgar, Fariborz
name: Cheraghchi, Hosein
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work we have investigated the effect of Rashba splitting on the RKKY interaction in TI thin film both at finite and zero chemical potential. We find that the spin susceptibility of Rashba materials including TI thin film is strongly dependent on the direction of distance vector. Moreover, we find another term in the off-diagonal terms of the spin-susceptibility tensor which in contrast to the well-known DM-like term is symmetric. We show how one can tune the RKKY interaction by using electric field applied perpendicularly to the surface plane and by small chemical doping giving rise to enhance the RKKY term, drastically. We have presented our results for two different situations, namely inter-surface pairing of magnetic impurities as well as intra-surface one. The behavior of these two situations is completely different which we describe it by mapping the density of states of each surface on the band dispersion.
Kepler Transit Depths Contaminated by a Phantom Star
Creators: name: Dalba, Paul A.
name: Muirhead, Philip S.
name: Croll, Bryce
name: Kempton, Eliza M. -R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present ground-based observations from the Discovery Channel Telescope (DCT) of three transits of Kepler-445c---a supposed super-Earth exoplanet with properties resembling GJ 1214b---and demonstrate that the transit depth is approximately 50 percent shallower than the depth previously inferred from Kepler Spacecraft data. The resulting decrease in planetary radius significantly alters the interpretation of the exoplanet's bulk composition. Despite the faintness of the M4 dwarf host star, our ground-based photometry clearly recovers each transit and achieves repeatable 1-sigma precision of approximately 0.2 percent (2 millimags). The transit parameters estimated from the DCT data are discrepant with those inferred from the Kepler data to at least 17-sigma confidence. This inconsistency is due to a subtle miscalculation of the stellar crowding metric during the Kepler pre-search data conditioning (PDC). The crowding metric, or CROWDSAP, is contaminated by a non-existent "phantom star" originating in the USNO-B1 catalog and inherited by the Kepler Input Catalog (KIC). Phantom stars in the KIC are likely rare, but they have the potential to affect statistical studies of Kepler targets that use the PDC transit depths for a large number of exoplanets where individual follow-up observation of each is not possible. The miscalculation of Kepler-445c's transit depth emphasizes the importance of stellar crowding in the Kepler data, and provides a cautionary tale for the analysis of data from the Transiting Exoplanet Survey Satellite (TESS), which will have even larger pixels than Kepler.
description: 11 pages, 10 figures, 5 tables. Accepted for publication in AJ. Transit light curves will be available from AJ as DbF
Flexocoupling induced soft acoustic mode and the spatially modulated phases in ferroelectrics
Creators: name: Morozovska, Anna N.
name: Glinchuk, Maya D.
name: Eliseev, Eugene A.
name: Vysochanskii, Yulian M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Using the Landau Ginzburg Devonshire theory and scalar approximation, we derived analytical expressions for the singular points (zeros, complex ranges) of the acoustic phonon mode (A mode) frequency in dependence on the wave vector k and examined the conditions of the soft A modes appearance in a ferroelectric depending on the magnitude of the flexoelectric coefficient f and temperature T. We predict that if the magnitude of the flexocoefficient f is equal to the temperature-dependent critical value fcr(T) at the temperature T=T_IC, the A mode frequency tends to zero at k=kr_0 and the spontaneous polarization becomes spatially modulated in a temperature range T
description: 26 pages, 5 figures, 1 supplement
An integrated hybrid-chip-fibre platform for the generation of mid-infrared light
Creators: name: Rehman, Sobia
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: The laser is, without doubt one of the most important, discoveries that have been made in the last century and within a few decades, visible and near-infrared (IR) laser light has found a vast number of important applications in industry and research. The discovery of low-loss optical fibres was another revolutionary step that underpinned the rise of the global telecommunication industry. The mid-IR region of the electromagnetic spectrum spanning from about 2 – 20 μm, has recently been identified as a powerful tool for sensing and medical applications due to the strong and highly specific interaction of light at these wavelengths with molecules. However, while lasers based on silica-fibres have proven to be the most versatile and efficient light sources in the visible and near-IR, those glasses become virtually opaque at mid-IR wavelengths and new solutions are required. In this work, mid-infrared fibre lasers that are based on fluoride-glass optical fibres and on femtosecond laser-inscribed chalcogenide glass integrated chips are investigated. In detail, this project is aimed at studying the feasibility of fabricating a wavelength-selective 3-D integrated coupler in Gallium Lanthanum Sulphide (GLS) glass. The demonstration of the first fibre pigtailed 4-port device in the mid-infrared is a prerequisite for the future realisation of the first fully integrated mid- infrared ring laser. This, in turn, would further open the possibility to develop monolithic all-fibre mode-locked lasers that are based on non-linearly coupled waveguide arrays.
Contact metamorphosed granitoids: their metamorphic zonation, correlation with associated hornfelsic isograds and implications upon emplacement mechanisms in the New England batholith
Creators: name: Clare, Alan Paul
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Petrological and structural studies of the contact metamorphic effects of one granite upon another and the surrounding hornfels have been performed within the aureoles of two granitoids (the Bendemeer Adamellite, 41 km NE of Tamworth and the Gwydir River Adamellite, 30 km W of Armidale) in the Southern New England Batholith. The Bendemeer Adamellite is known to intrude (Chappell,1978) the Banalasta Adamellite, an S-type, microcline bearing pluton and the Gwydir River Adamellite likewise intrudes (Ransley,1970) the Yarrowyck Granodiorite, an I-type, orthoclase bearing pluton containing weak deformation associated with spaced micro-shear zones. Correlation of contact metamorphism in both the aureoles examined reveals essentially identical metamorphic zonations. -- A mineralogical and microstructural examination of the metagranites away from the later intrusives reveals a regional unaffected zone ( 4 km in the Banalasta Adamellite and 1.5km in the Yarrowyck Granodiorite), a low grade strained zone (1.5-4 km, Banalasta Adamellite and 350-1200 m, Yarrowyck Granodiorite), characterised by high K-feldspar triclinicities and deformational microstructures and a high grade annealled zone (less than 1.5 km, Banalasta Adamellite and less than 350m Yarrowyck Granodiorite), characterised by low K-feldspar triclinicities and recovery and recrystallisation microstructures. The hornfelsic rocks in both areas record metamorphic changes within the intruding pluton's thermal envelope up to the hornblende-hornfels facies ( the pelites recording grades up to the cordierite - K-feldpsar facies and metabasalts recording prograde changes from blue-green, fibrous actinolitic hornblende to brown, granoblastic tschermakitic hornblende ), enabling a finer subdivision of the high grade zone. -- This study has revealed two distinct, emplacement - induced domains within the aureoles; an outer strained envelope recording minor ductile deformation; and an inner envelope of continuous thermal annealling during emplacement. -- The discordant nature of the intruding pluton's contacts, low contact temperatures (650 degrees celcius) and maximum shortening less than 17.9 %, preclude emplacement mechanisms by either doming (Castro, 1987); melt zoning (Ahern, 1981) or ballooning diapirism (Bateman, 1985) respectively. The meridonal trend of the plutonic suites of the New England Batholith (sub-paralleling the major regional faults and a once convergent plate margin), the metamorphic zonation outlined and its implications upon emplacement induced deformation and thermal annealling and only minor shortening, favour a regional emplacement mechanism of dyke propagation at depth and a proposed high-level mechanism of sloping and associated late stage diapiric processes for the two I-type plutons studied.
Giant microwave-induced $B$-periodic magnetoresistance oscillations in a two-dimensional electron gas with a bridged-gate tunnel point contact
Creators: name: Levin, A. D.
name: Mikhailov, S. A.
name: Gusev, G. M.
name: Kvon, Z. D.
name: Rodyakina, E. E.
name: Latyshev, A. V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have studied the magnetoresistance of the quantum point contact fabricated on the high mobility two-dimensional electron gas (2DEG) exposed to microwave irradiation. The resistance reveals giant $B$-periodic oscillations with the relative amplitude $ΔR/R$ of up to $700$\% resulting from the propagation and interference of the edge magnetoplasmons (EMPs) in the sample. This giant photoconductance is attributed to the considerably large local electron density modulation in the vicinity of the point contact. We have also analyzed the oscillation periods $ΔB$ of the resistance oscillations and, comparing the data with the EMP theory, extracted the EMP interference length $L$. We have found that the length $L$ substantially exceeds the distance between the contact leads but rather corresponds to the distance between metallic contact pads measured along the edge of the 2DEG. This resolves existing controversy in the literature and should help to properly design highly sensitive microwave and terahertz spectrometers based on the discussed effect.
description: 5 pages, 5 figures
title: 01_0875
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Sifr 'a'mâl al-rusul
Creators: name: Ayuch, Daniel
Publisher: name: Zenodo
Year: 2018
Subjects: Narrative Interpretation, Arab Christian Studies, Luke-Acts, Book of Acts, Christian Arabic Literature

description: The attached file shows some pages from the commentary on the Book of Acts as in the Arabic Contemporary Commentary. This book is the first of its kind in the Middle East, written in Arabic, by Arabic Christian scholars, which offers Arab theological thinking with a great deal of diversity and pluralism to interpreters. This work is the result of an effort over many years, with 48 writers from six Arab countries: Egypt, Lebanon, Syria, Palestine, Jordan and Kuwait.
title: ADCO, Cartulaire de Cîteaux pour les possessions de Tontenant (c. 1504), Cart. 184 (11 H 987), 105 folios, f. 0154
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2015
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP

description: Cartulaire de Cîteaux pour les possessions de Tontenant (c. 1504), Archives départementales de la Côte-d'Or, Cart. 184 (11 H 987), 105 folios, f. 0154, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions de Tontenant (c. 1504), Archives départementales de la Côte-d'Or, Cart. 184 (11 H 987), 105 folios, f. 0154, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Influence of magnetic field on evaporation of a ferrofluid droplet
Creators: name: Jadav, Mudra
name: Patel, R. J.
name: Mehta, R. V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Influence of magnitude and direction of static magnetic field applied on a drying drop of a laboratory synthesized water base ferrofluid placed on a plane glass plate is investigated. Like all other multi-component fluid this drop also exhibited familiar coffee ring pattern in absence of field while, this pattern is modulated by applying magnetic field and thickness of the ring modulated by the applied field and thickness of the ring decreases exponentially with increase in field when direction of field is normal to the plane of the substrate. Effect of the field on the evaporation rate and temporal variation of contact angle is also studied. Results are analysed in light of available models. The findings may be useful in applications like ink-jet printing, painting and display devices involving ferrofluids.
description: 8 pages including 8 figures
The production of a contemporary chamber opera (The boy who wasn't there)
Creators: name: Howlett, May Catherine
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: From its origins as chamber opera just over four hundred years ago, Opera developed through the 18th and 19th centuries, in length and complexity, to attain the status of 'grand', a term that most people associate with opera to this day ... At the beginning of the 20th century, radical innovations in the arts influenced by movements such as the Bauhaus phenomenon, added to the aftermath of a world war that shattered existing socio-political structures and artistic sentiments turned from extroverted displays of grandeur to the creation of more cerebral, introverted styles. ... On the threshold of a new millennium, small, often experimental companies, passionately convinced of the relevance of, and excited by the artistic potential inherent in this revitalized form of opera, formed a loose consortium of creative artists internationally, similar in spirit to the original Camerata of the 16th century, making use of current technologies. Whether these newer works may be styled 'chamber opera' or 'music theatre', they represent a form in evolution, capable of further development into a new genre, a vital nexus of traditional skills applied to current issues, peculiarly suited to integration with electronic modes such as television.
Dyadic Green's function formalism for photo-induced forces in tip-sample nanojunctions
Creators: name: Ladani, Faezeh Tork
name: Potma, Eric O.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A comprehensive theoretical analysis of photo-induced forces in an illuminated nanojunction, formed between an atomic force microscopy tip and a sample, is presented. The formalism is valid within the dipolar approximation and includes multiple scattering effects between the tip, sample and a planar substrate through a dyadic Green's function approach. This physically intuitive description allows a detailed look at the quantitative contribution of multiple scattering effects to the measured photo-induced force, effects that are typically unaccounted for in simpler analytical models. Our findings show that the presence of the planar substrate and anisotropy of the tip have a substantial effect on the magnitude and the spectral response of the photo-induced force exerted on the tip. Unlike previous models, our calculations predict photo-induced forces that are within range of experimentally measured values in photo-induced force microscopy (PiFM) experiments.
description: 11 pages, 9 figures