cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Design, development, and integration of an automated herring roe grading system
Creators: name: Kurnianto, Setiawan
Publisher: name: University of British Columbia
Year: 2009

description: In this thesis, the design and development of an industrial prototype for herring roe grading is presented. In the fish processing industry of British Columbia, grading of herring roe is currently done manually. The highly repetitive and laborious activities that are involved in grading of herring roe, and the problem of maintaining a skilled labor force for a seasonal industry that is active for less than 3 months/year, are motivating factors for automation of the grading process. For this purpose, sensor technology for analyzing shape, size, firmness, color, and weight of herring roe skein has been developed in the Industrial Automation Laboratory. An intelligent decision making algorithm has been developed as well, incorporating this sensor technology, employing fuzzy logic to infer a classification measure. Further development of the system requires the integration of both hardware and software in a functional and automated herring roe grading prototype. System design, integration and performance evaluation are also presented in the thesis. A typical herring roe processing operation in industry is described in the thesis. It will highlight problems in manual grading. It will also serve to identify appropriate technology for an automated grading machine. The conceptual design of each component of a system for automated grading of herring roe is presented. A control system, with appropriate component level and monitoring functions, in a multitasking environment is developed for the overall grading system. An industrial prototype using a CCD camera and optical object-detection sensor as the key sensing means, along with a variety of mechanical and control devices has been developed by us for herring roe grading. The selection of the conveyor system and the pneumatic valves of the roe ejection system that has been implemented is described. A special illumination system has been designed to generate high-quality images of roe. A control function to execute various tasks in the prototype machine also has been developed and implemented. The present version of the machine is capable of grading herring roe by shape and weight at a rate of 1 skein/second. Two refinements in weight estimation and broken-tail analysis are developed and incorporated in the machine. Testing of the prototype, both in our laboratory and at an industrial plant, has shown that the accuracy of selecting out Grade 1 Large skeins from a typical, industrial batch is approximately 94%, with our prototype. The experimental results are evaluated, and a possible application for the current version of the grading machine is given. A cost-benefit analysis is also carried out for the present version of the machine, and further improvements are recommended for the automated herring roe grading system.
A close look into the carbon disk at the core of the planetary nebula CPD-568032
Creators: name: Chesneau, Olivier
name: Collioud, Arnaud
name: De Marco, Orsola
name: Wolf, Sebastian
name: Lagadec, Eric
name: Zijlstra, Albert A.
name: Rothkopf, Alexander
name: Acker, AGNès
name: Clayton, Geoff C.
name: Lopez, B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present high spatial resolution observations of the dusty core of the Planetary Nebula with Wolf-Rayet central star CPD-568032. These observations were taken with the mid-infrared interferometer VLTI/MIDI in imaging mode providing a typical 300 mas resolution and in interferometric mode using UT2-UT3 47m baseline providing a typical spatial resolution of 20 mas. The visible HST images exhibit a complex multilobal geometry dominated by faint lobes. The farthest structures are located at 7" from the star. The mid-IR environment of CPD-568032 is dominated by a compact source, barely resolved by a single UT telescope in a 8.7 micron filter. The infrared core is almost fully resolved with the three 40-45m projected baselines ranging from -5 to 51 degree but smooth oscillating fringes at low level have been detected in spectrally dispersed visibilities. This clear signal is interpreted in terms of a ring structure which would define the bright inner rim of the equatorial disk. Geometric models allowed us to derive the main geometrical parameters of the disk. For instance, a reasonably good fit is reached with an achromatic and elliptical truncated Gaussian with a radius of 97+/-11 AU, an inclination of 28+/-7 degree and a PA for the major axis at 345+/-7 degree. Furthermore, we performed some radiative transfer modeling aimed at further constraining the geometry and mass content of the disk, by taking into account the MIDI dispersed visibilities, spectra, and the large aperture SED of the source. These models show that the disk is mostly optically thin in the N band and highly flared.
description: Paper accepted in A&A
High-accuracy calculation of the deuteron charge and quadrupole form factors in chiral effective field theory
Creators: name: Filin, A. A.
name: Möller, D.
name: Baru, V.
name: Epelbaum, E.
name: Krebs, H.
name: Reinert, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present a comprehensive analysis of the deuteron charge and quadrupole form factors based on the latest two-nucleon potentials and charge density operators derived in chiral effective field theory. The single- and two-nucleon contributions to the charge density are expressed in terms of the proton and neutron form factors, for which the most up-to-date empirical parametrizations are employed. By adjusting the fifth-order short-range terms in the two-nucleon charge density operator to reproduce the world data on the momentum-transfer dependence of the deuteron charge and quadrupole form factors, we predict the values of the structure radius and the quadrupole moment of the deuteron: $r_{\rm str}=1.9729\substack{+0.0015\\ -0.0012}\ \text{fm},\ Q_d=0.2854\substack{+0.0038\\ -0.0017}\ \text{fm}^2. $ A comprehensive and systematic analysis of various sources of uncertainty in our predictions is performed. Following the strategy advocated in our recent publication Phys. Rev. Lett. 124, 082501 (2020), we employ the extracted structure radius together with the accurate atomic data for the deuteron-proton mean-square charge radii difference to update the determination of the neutron charge radius, for which we find: $r_n^2=-0.105\substack{+0.005\\ -0.006} \, \text{fm}^2$. Given the observed rapid convergence of the deuteron form factors in the momentum-transfer range of $Q \simeq 1-2.5$ fm$^{-1}$, we argue that this intermediate-energy domain is particularly sensitive to the details of the nucleon form factors and can be used to test different parametrizations.
description: 39 pages, 9 figures
A new symbiotic low mass X-ray binary system: 4U 1954+319
Creators: name: Mattana, F.
name: Gotz, D.
name: Falanga, M.
name: Senziani, F.
name: De Luca, A.
name: Esposito, P.
name: Caraveo, P. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: 4U 1954+319 was discovered 25 years ago, but only recently has a clear picture of its nature begun to emerge. We present for the first time a broad-band spectrum of the source and a detailed timing study using more than one year of monitoring data. The timing and spectral analysis was done using publicly available Swift, INTEGRAL, BeppoSAX, and RXTE/ASM data in the 0.7-150 keV energy band. The source spectrum is described well by a highly absorbed (N_H~10^23 cm^-2) power law with a high-energy exponential cutoff around 15 keV. An additional black body component is needed below 3 keV to account for a soft excess. The derived ~5 hr periodicity, with a spin-up timescale of ~25 years, could be identified as the neutron star spin period. The spectral and timing characteristics indicate that we are dealing both with the slowest established wind-accreting X-ray pulsar and with the second confirmed member of the emerging class dubbed "symbiotic low mass X-ray binaries" to host a neutron star.
description: 5 pages, 3 figures, accepted for publication in A&A Letters
Two-stage Seebeck effect in charged colloidal suspensions
Creators: name: Chikina, Ioulia
name: Nakamae, Sawako
name: Shikin, Valeriy
name: Varlamov, Andrey
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We discuss the peculiarities of the Seebeck effect in stabilized electrolytes containing the colloidal particles. Its unusual feature is the two-stage character, with the linear increase of differential thermopower as the function of colloidal particles concentration $n_{\odot}$ during the first stage and dramatic drop of it at small $n_{\odot}$ during the second one (steady state). We show that the properties of the initial state are governed by the thermo-diffusion flows of the mobile ions of the stabilizing electrolyte medium itself and how the colloidal particles participate in formation of the electric field in the bulk of suspension. In its turn the specifics of the steady state in thermoelectric effect we attribute to considerable displacements of the massive colloidal particles in process of their slow thermal diffusion and break down of their electroneutrality in the vicinity of electrodes
description: 6 pages, 4 figures
All that Glitters is Gold: Development and Validation of the Product Aesthetics Inventory (PAI) - Online Supplement
Creators: name: Thielsch, Meinald T.
name: Forthmann, Boris
name: Brau, Henning
name: Eisbach, Simon
Publisher: name: Zenodo
Year: 2022
Subjects: Aesthetics
Product Aesthetics
Product Design
Interactive products
Assessment

description: This is the online supplement for a series of studies aimed at creating the Product Aesthetics Inventory. Aesthetics is essential to the design of products. Nevertheless, aesthetic quality is often assessed with inaccurate, ad-hoc scales. Therefore, we have developed the Product Aesthetics Inventory (PAI) and its short version the PAI-S. A pre-study using face-to-face interviews (N = 6 design experts, N = 4 product users) served as basis for the development of test items. The resulting item battery was then used by N = 6002 persons in an online survey to evaluate various types of household appliances. In Study 1, n = 3000 of those participants’ data were used to determine the number of product aesthetics factors and to select the optimal items by combining exploratory graph analysis (EGA) and confirmatory factor analysis (CFA) approaches. We found an eight-factor structure consisting of the dimensions Visual aesthetics, Operating elements, Logo, Feedback sounds, Operating sound, Haptic, Interaction aesthetics, and Impression. In Study 2, we confirmed this structure by a CFA with the remaining n = 3002 participants, resulting in excellent model fit. Further, construct validity was confirmed by correlations with other established aesthetic scales, intentions, and general judgments. In both studies, strict measurement invariance was achieved across four household appliances, which further highlights the psychometric quality of the newly developed scales. In Study 3 (N = 1028), we demonstrated that most of the PAI factors as well as reliability, validity, and measurement invariance findings generalized to power tools, office equipment, and home entertainment devices. This online supplement includes Questionnaire templates for PAI and PAI-S in English and German Analysis templates (Excel) for calculating scales and sum values based on raw data in English and German Analysis scripts of our studies (R) A codebook describing all instructions and items of study 3 Raw data (anonymised) of study 3 (Note: The raw data contains only the information of persons who have agreed to be included in the analysis. Some demographic information was deleted to ensure anonymity.) A supplementary table with the list of original items sorted in categories and with abbreviations used, reasons for exclusion, and information on inclusion in the short scale.
Equilibrium and non-equilibrium fluctuations in a glass-forming liquid
Creators: name: Parsaeian, Azita
name: Castillo, Horacio E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Glass-forming liquids display strong fluctuations -- dynamical heterogeneities -- near their glass transition. By numerically simulating a binary Weeks-Chandler-Andersen liquid and varying both temperature and timescale, we investigate the probability distributions of two kinds of local fluctuations in the non-equilibrium (aging) regime and in the equilibrium regime; and find them to be very similar in the two regimes and across temperatures. We also observe that, when appropriately rescaled, the integrated dynamic susceptibility is very weakly dependent on temperature and very similar in both regimes.
description: v1: 5 pages, 4 figures v2: 5 pages, 4 figures. Now includes results at three temperatures, two of them above T_{MCT} and one below T_{MCT}; and more extensive discussion of connections to experiments
Majority-vote model on (3,4,6,4) and (3^4,6) Archimedean lattices
Creators: name: Lima, F. W. S.
name: Malarz, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: On Archimedean lattices, the Ising model exhibits spontaneous ordering. Two examples of these lattices of the majority-vote model with noise are considered and studied through extensive Monte Carlo simulations. The order/disorder phase transition is observed in this system. The calculated values of the critical noise parameter are q_c=0.091(2) and q_c=0.134(3) for (3,4,6,4) and (3^4,6) Archimedean lattices, respectively. The critical exponents beta/nu, gamma/nu and 1/nu for this model are 0.103(6), 1.596(54), 0.872(85) for (3,4,6,4) and 0.114(3), 1.632(35), 0.978(104) for (3^4,6) Archimedean lattices. These results differs from the usual Ising model results and the majority-vote model on so-far studied regular lattices or complex networks. The effective dimensionality of the system [D_{eff}(3,4,6,4)=1.802(55) and D_{eff}(3^4,6)=1.860(34)] for these networks are reasonably close to the embedding dimension two.
description: 6 pages, 7 figures in 12 eps files, RevTex4
title: Πρόταση αποκατάστασης-επανάχρησης κατοικίας Μυλωνάκη στο Κολυμπάρι Χανίων
title:  Proposal for the restoration-reuse of Mylonaki residence in Kolimbari, Chania
Creators: name: Πενταρης Ανδρεας
Publisher: name: Technical University of Crete
Year: 2024

description:  Η  διπλωματική εργασία έχει πραγματεύεται την αποκατάσταση και επανάχρηση της οικίας Μυλωνάκη. Είναι μια  διώροφη οικία  με νεοκλασικά στοιχεία κατασκευασμένο αρχή του 20ου αιώνα το οποίο βρίσκεται στο Κολυμπάρι Χανίων. Η οικία  θεωρείται αξιόλογο παράδειγμα λόγω της αρχιτεκτονικής της σημασίας ως χαρακτηριστικό δείγμα της εποχής της με κάποιες μάλιστα ιδιαιτερότητες όπως είναι η χρήση του τσιμεντόλιθου αντί λαξευτού λίθου στις τοιχοποιίες. Η οικοδόμηση της  εκτός αστικού ιστού την  καθιστά μια σχετικώς σπάνια περίπτωση οικίας με νεοκλασικά στοιχεία για την αγροτική περιοχή του Κολυμπαρίου.
  Σκοπός της εργασίας είναι η αποκατάσταση του κτιρίου, η ανάδειξη και επανάχρηση του, σύμφωνα με τις σύγχρονες τάσεις και τους διεθνείς χάρτες για την προστασία και αποκατάσταση των μνημείων. Για τον λόγο αυτόν, ήταν αναγκαίά η τεκμηρίωση της οικίας τόσο ιστορικά όσο και αρχιτεκτονικά. Η αξιολόγηση της υφιστάμενη κατάστασης και  της παθολογίας του ήταν επίσης αναγκαία καθώς και η εκτίμηση των  αξιών που συναντάμε στην οικία. Με αυτό τον τρόπο έγινε προσδιορισμός των προτεινόμενων επεμβάσεων.
Additional file 2 of A systematic review of randomized control trials of HPV self-collection studies among women in sub-Saharan Africa using the RE-AIM framework
Creators: name: Nwaozuru, Ucheoma
name: Obiezu-Umeh, Chisom
name: Obi-Jeff, Chisom
name: Shato, Thembekile
name: Gbaja-Biamila, Titilola
name: Oladele, David
name: Idigbe, Ifeoma
name: Tucker, Joseph
name: Ezechi, Oliver
name: Iwelunmor, Juliet
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 2. Search strategy for PubMed which was modified and used in other databases.
A limit on the presence of Earth-mass planets around a Sun-like star
Creators: name: Agol, Eric
name: Steffen, Jason H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a combined analysis of all publicly available, visible HST observations of transits of the planet HD 209458b. We derive the times of transit, planet radius, inclination, period, and ephemeris. The transit times are then used to constrain the existence of secondary planets in the system. We show that planets near an Earth mass can be ruled out in low-order mean-motion resonance, while planets less than an Earth mass are ruled out in interior, 2:1 resonance. We also present a combined analysis of the transit times and 68 high precision radial velocity measurements of the system. These results are compared to theoretical predictions for the constraints that can be placed on secondary planets.
description: Accepted for publication in MNRAS. 16 pages, 9 figures
Additional file 1 of A systematic review of randomized control trials of HPV self-collection studies among women in sub-Saharan Africa using the RE-AIM framework
Creators: name: Nwaozuru, Ucheoma
name: Obiezu-Umeh, Chisom
name: Obi-Jeff, Chisom
name: Shato, Thembekile
name: Gbaja-Biamila, Titilola
name: Oladele, David
name: Idigbe, Ifeoma
name: Tucker, Joseph
name: Ezechi, Oliver
name: Iwelunmor, Juliet
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1. Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) checklist.
The X-ray emission of the Seyfert 2 galaxy MCG-01-24-12
Creators: name: Middei, R.
name: Matzeu, G. A.
name: Bianchi, S.
name: Braito, V.
name: Reeves, J.
name: De Rosa, A.
name: Dadina, M.
name: Marinucci, A.
name: Perri, M.
name: Zaino, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a detailed X-ray spectral analysis of the nearby Seyfert 2 galaxy MCG-01-24-12 based on a multi-epoch data set. Data have been taken with different X-ray satellites, namely XMM-Newton, NuSTAR, Swift and Chandra and cover different time intervals, from years down to a few days. From 2006 to 2013 the source had a 2-10 keV flux of $\sim$1.5$\times$10$^{-11}$ erg cm$^{-2}$ s$^{-1}$, consistent with archival observations based on \textit{HEAO} and \textit{BeppoSAX} data, though a 2019 \textit{Chandra} snapshot caught the source in an extreme low flux state, a factor of $\sim$10 fainter than its historical one. Based on phenomenological and physically motivated models, we find the X-ray spectrum of MCG-01-24-12 to be best modelled by a power-law continuum emission with $Γ$=1.76$\pm$0.09 with a high energy cut-off at E$_{\rm c}=70^{+21}_{-14}$ keV that is absorbed by a fairly constant column density of N$_{\rm H}$=(6.3$\pm$0.5)$\times10^{22}$ cm$^{-2}$. These quantities allowed us to estimate the properties of the hot corona in MCG-01-24-12 for the cases of a spherical or slab-like hot Comptonising plasma to be kT$_{\rm e}$=27$^{+8}_{-4}$ keV, $τ_{\rm e}$=5.5$\pm$1.3 and kT$_{\rm e}$=28$^{+7}_{-5}$ keV, $τ$=3.2$\pm$0.8, respectively. Finally, despite the short duration of the exposures, possible evidence of the presence of outflows is discussed.
description: 12 pages, 10 figures, accepted for publication in A&A
Additional file 4 of A systematic review of randomized control trials of HPV self-collection studies among women in sub-Saharan Africa using the RE-AIM framework
Creators: name: Nwaozuru, Ucheoma
name: Obiezu-Umeh, Chisom
name: Obi-Jeff, Chisom
name: Shato, Thembekile
name: Gbaja-Biamila, Titilola
name: Oladele, David
name: Idigbe, Ifeoma
name: Tucker, Joseph
name: Ezechi, Oliver
name: Iwelunmor, Juliet
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 4. Quality of Included Studies based on Cochran Collaboration risk of bias tool [1, 2].
Additional file 3 of A systematic review of randomized control trials of HPV self-collection studies among women in sub-Saharan Africa using the RE-AIM framework
Creators: name: Nwaozuru, Ucheoma
name: Obiezu-Umeh, Chisom
name: Obi-Jeff, Chisom
name: Shato, Thembekile
name: Gbaja-Biamila, Titilola
name: Oladele, David
name: Idigbe, Ifeoma
name: Tucker, Joseph
name: Ezechi, Oliver
name: Iwelunmor, Juliet
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 3. Definition of the dimension on the RE-AIM framework [1, 2].
Autocorrelation Sequence Prediction Model Based On Reference Function Transformation: Taking Epidemic Prediction As An Example
Creators: name: Tingzhen Liu
name: Zhou, Tong
name: Gao, Jin
name: Li, Wei
name: Yumei Ma
Publisher: name: figshare
Year: 2021
Subjects: subject: 10401 Applied Statistics
subject: FOS: Mathematics

description: Autocorrelation sequence prediction is one of the hotspots in machine learning and statistics. At present, the problem of epidemic prediction is concerned by the whole world in this field. In this paper, a prediction algorithm of autocorrelation sequence based on transformation is proposed. It construct a reference function based on the time series of regions that have experienced the whole process of epidemic situation. The reference function coordinates are transformed with the incomplete observation data of other regions as the supervision. Under the condition that the cost of transformation is kept as small as possible, the transformed function can effectively predict the series values that are not observed in other regions. This algorithm needs a little data and has good training stability. On this basis, we study how to use the information provided by other exogenous variables on the basis of autocorrelation prediction to make the model achieve better results. We use the covid-19 epidemic data set provided by Baidu to test our model, and the results show that it has good fitting metrics. It also has better effect in comparison with LSTM epidemic prediction model baseline.
Employability - impact of AI, accessibility, graduate expectations and curriculum development
Creators: name: Knapton, Helena
name: Marriott, Susie
name: Hartley, Peter
name: Stafford, Kate
Publisher: name: National Teaching Repository
Year: 2024
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: Abstract, summary of discussion and resources from a conference workshop which investigated employability from the persepectives of AI and its impact, accessibility for those who are neurodivergent, graduate expectations and curriculum development. The workshop was attended by a wide range of participants including academics, student representation as well as professional support colleagues.A link to the padlet used, with opportunities to contribute to the discussion is available in the summary of discussion document.
Mid-IR spectroscopy with NIR grating spectrometers
Creators: name: Kaufmann, Paul
name: Chrzanowski, Helen M.
name: Vanselow, Aron
name: Ramelow, Sven
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Mid-infrared (mid-IR) spectroscopy is a crucial workhorse for a plethora of analytical applications and is suitable for diverse materials, including gases, polymers or biological tissue. However, this technologically significant wavelength regime between 2.5-10$μ$m suffers from technical limitations primarily related to the large noise in mid-IR detectors and the complexity and cost of bright, broadband mid-IR light sources. Here, using highly non-degenerate, broadband photon pairs from bright spontaneous parametric down-conversion (SPDC) in a nonlinear interferometer, we circumvent these limitations and realise spectroscopy in the mid-IR using only a visible (VIS) solid-state laser and an off-the-shelf, commercial near-infrared (NIR) grating spectrometer. With this proof-of-concept implementation, covering a broad range from 3.2$μ$m to 4.4$μ$m, we access short integration times down to 1s and signal-to-noise ratios above 200 at a spectral resolution from 12cm$^{-1}$ down to 1.5cm$^{-1}$ for longer integration times. Through the analysis of polymer samples and the ambient CO$_2$ in our laboratory, we highlight the potential of this measurement technique for real-world applications.
description: 12 pages, 4 figures, submitted to Optics Express
Comments on the momentum density and the spatial form of the density-matrix of the Hooke's atom
Creators: name: Sebastien, Ragot
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: In a recent paper, A. Akbari, N. H. March and A. Rubio [Phys. Rev. A. 76, 032510 (2007)] have investigated the one-electron reduced density-matrix and the momentum density of several two-electron model atoms, including the Hooke's atom. The method used by the authors for deriving an integral form of the momentum density is well suited for deriving a closed-form expression of the exact reciprocal form factor, which function is of importance inasmuch as it reflects the off-diagonal side of the exact reduced density-matrix.
description: 7 pages. Submitted
Factorised Steady States in Mass Transport Models on an Arbitrary Graph
Creators: name: Evans, M. R.
name: Majumdar, Satya N.
name: Zia, R. K. P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study a general mass transport model on an arbitrary graph consisting of $L$ nodes each carrying a continuous mass. The graph also has a set of directed links between pairs of nodes through which a stochastic portion of mass, chosen from a site-dependent distribution, is transported between the nodes at each time step. The dynamics conserves the total mass and the system eventually reaches a steady state. This general model includes as special cases various previously studied models such as the Zero-range process and the Asymmetric random average process. We derive a general condition on the stochastic mass transport rules, valid for arbitrary graph and for both parallel and random sequential dynamics, that is sufficient to guarantee that the steady state is factorisable. We demonstrate how this condition can be achieved in several examples. We show that our generalized result contains as a special case the recent results derived by Greenblatt and Lebowitz for $d$-dimensional hypercubic lattices with random sequential dynamics.
description: 17 pages 1 figure
Letter from the Washington Nursery Company to Rainbow Ranche, December 14, 1910
Creators: name: Washington Nursery Company
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to Rainbow Ranche from the Washington Nursery Company, dated December 14, 1910, regarding an offer to send the Ranche an extra 200 Transcendent Crabs in place of the Hyslop ordered.
Baumert, Norbert / Seewann, Maria-Irma: Was Christen glauben
Creators: name: Klaiber, Walter
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 64 Nr. 4 (2015): Ökumenische Rundschau, Band 64, Heft 4
The X-ray emission of the supernova remnant W49B observed with XMM-Newton
Creators: name: Miceli, M.
name: Decourchelle, A.
name: Ballet, J.
name: Bocchino, F.
name: Hughes, J. P.
name: Hwang, U.
name: Petre, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the framework of the study of supernova remnants and their complex interaction with the interstellar medium, we report on an XMM-Newton EPIC observation of the Galactic supernova remnant W49B. We investigate the spatial distribution of the chemical and physical properties of the plasma, so as to get important constraints on the physical scenario, on the dynamics of the supernova explosion, and on the interaction of the supernova remnant with the ambient interstellar clouds. We present line images, equivalent width maps, and a spatially resolved spectral analysis of a set of homogeneous regions. The X-ray spectrum of W49B is characterized by strong K emission lines from Si, S, Ar, Ca and Fe. In all the regions studied, the X-ray spectrum is dominated by the emission from the ejecta and there is no indication of radial stratification of the elements. A high overabundance of Ni (Ni/Ni_sun=10^{+2}_{-1}) is required in the bright central region and the previous detection of Cr and Mn line emission is confirmed. Spectra are well described by two thermal components in collisional ionization equilibrium. We observe spatial variations in the temperature, with the highest temperature found in the east and the lowest in the west. Our results support a scenario in which the X-ray emission comes from ejecta interacting with a dense belt of ambient material, but another possibility is that the remnant is the result of an asymmetric bipolar explosion with the eastern jet being hotter and more Fe-rich than the western jet. The eastern jet is confined by interaction with ambient molecular clouds. Comparison of the observed abundances with yields for hypernova and supernova nucleosynthesis does not directly support the association of W49B with a gamma-ray burst, although it remains possible.
description: To be published in A&A. For the complete version of the paper, with all the figures included, please see http://www.astropa.unipa.it/Library/preprint.html
Underground design and deformation based on surface geometry
Creators: name: Milne, Douglas Matthew
Publisher: name: University of British Columbia
Year: 2009

description: This thesis presents a method for improving underground excavation design by relating geometry and deformation to the stability of hanging wall surfaces of open stopes. Instability on a stope hanging wall occurs when the opening geometry increases past a stable limit. There are no realistic methods of predicting surface deformation or projecting future deformation with continued mining. Computer models do exist which calculate deformation, however, no methods exist for obtaining realistic input parameters for the rock mass. Both stability and deformation, for a given mining situation, are dependent on the geometry of the surface opening. Two terms have been introduced in this thesis, radius factor and effective radius factor, which are based on surface geometry. Radius factor, (RF), is related to the overall stability and maximum deformation of a surface. Effective radius factor, (ERF), is related to the local stability and deformation of a point on the stope surface. By introducing a term related to both stability and deformation, maximum allowable stable deformations can be designed for. Support practices can be tailored to provide the optimum support for the expected deformation. Deformation has been linked to geometry with instrumented case histories from several mines. Several mechanisms driving deformation have been recognized including elastic relaxation, non-elastic fracture dilation and voussoir arch deflection. With monitoring, rates of deformation accompanying mining have been determined which allow the prediction of future movement with continued mining. The modified stability graph design technique, which is an existing empirical design technique modified from the Mathews design method, has formed the basis for stability assessment. With this method hydraulic radius is used to assess surface geometry. The data base behind the design method has been re-analysed using the RF term which more accurately reflects surface stability. Case histories of stope backs, where the modified stability graph design was unsuccessful in estimating stability, have been reassessed using RF values resulting in more accurate stability assessments. This thesis successfully links hanging wall geometry with measured deformation and the onset of instability. Instrumented field movement data can be used to design support to match the predicted surface movements, as well as indicate the approach of failure. More complex geometries can now be assessed with commonly used empirical design tools.
Traverso's isogeny conjecture for p-divisible groups
Creators: name: Nicole, Marc-Hubert
name: Vasiu, Adrian
Publisher: name: arXiv
Year: 2006
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11G10, 11G18, 14F30, 14G35, 14L05

description: Let $k$ be an algebraically closed field of characteristic $p>0$. Let $c,d\in\dbN$. Let $b_{c,d}\ge 1$ be the smallest integer such that for any two $p$-divisible groups $H$ and $H^\prime$ over $k$ of codimension $c$ and dimension $d$ the following assertion holds: If $H[p^{b_{c,d}}]$ and $H^\prime[p^{b_{c,d}}]$ are isomorphic, then $H$ and $H^\prime$ are isogenous. We show that $b_{c,d}=\lceil{cd\over {c+d}}\rceil$. This proves Traverso's isogeny conjecture for $p$-divisible groups over $k$.
description: 8 pages, laTex; to appear in Rend. Sem. Mat. Univ. Padova
Employability - impact of AI, accessibility, graduate expectations and curriculum development
Creators: name: Knapton, Helena
name: Marriott, Susie
name: Hartley, Peter
name: Stafford, Kate
Publisher: name: National Teaching Repository
Year: 2024
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: Abstract, summary of discussion and resources from a conference workshop which investigated employability from the persepectives of AI and its impact, accessibility for those who are neurodivergent, graduate expectations and curriculum development.  The workshop was attended by a wide range of participants including academics, student representation as well as professional support colleagues.

A link to the padlet used, with opportunities to contribute to the discussion is also available.
Single-Particle Mobility Edge without Disorder
Creators: name: Dwiputra, Donny
name: Zen, Freddy P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The existence of localization and mobility edges in one-dimensional lattices is commonly thought to depend on disorder (or quasidisorder). We investigate localization properties of a disorder-free lattice subject to an equally spaced electric field. We analytically show that, even though the model has no quenched disorder, this system manifests an exact mobility edge and the localization regime extends to weak fields, in contrast to gigantic field for the localization of a usual Stark lattice. For strong fields, the Wannier-Stark ladder is recovered and the number of localized eigenstates is inversely proportional to the spacing. Moreover, we study the time dependence of an initially localized excitation and dynamically probe the existence of mobility edge.
description: 6 pages, 3 figures
Additional file 2 of Injectisome T3SS subunits as potential chaperones in the extracellular export of Pectobacterium carotovorum subsp. carotovorum bacteriocins Carocin S1 and Carocin S3 secreted via flagellar T3SS
Creators: name: Wu, Huang-Pin
name: Derilo, Reymund C.
name: Chen, Han-Ling
name: Li, Tzu-Rung
name: Lagitnay, Ruchi Briam James S.
name: Chan, Yung-Chieh
name: Chuang, Yutin
name: Chuang, Duen-Yau
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 2: Supplementary Fig 2. Southern hybridization of the wild-type strain genomic DNA. H-rif-8-6 genomic DNA was digested with a various restriction endonuclease. The enzymes used, from right to left, were 1, EcoRI; 2, BamHI; 3, HindIII; 4, PvuII; 5, XbaI; 6, NcoI; and 7, NotI. We used the 1 kb marker and control (probe construction). The red arrow shows the response, and its length is about 3000 bp. The probe design was based on the sequence of TAIL-PCR near transposon Tn5. The response slice was cut from agarose gel and the DNA fragment was cloned into pBR322 vector.
Meson Clouds and Nucleon Electromagnetic Form Factors
Creators: name: Miller, Gerald A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In contrast with common non-relativistic lore, the usual Sachs form factors are not the Fourier transforms of charge or magnetization densities. Instead, the two-dimensional Fourier transform of the electromagnetic $F_1$ form factor is the charge charge density of partons in the transverse plane. An analysis of the available data for neutron form factors leads to the result that the neutron charge density is negative at the center, and that the square of the transverse charge radius is positive. This contrasts with many expectations. Additionally, the use of measured proton form factors leads to the result that the proton's central $u$ quark charge density is larger than that of the $d$ quark by about 80%. The proton (neutron) charge density has a long range positively (negatively) charged component indicative of a pion cloud.
description: 8 pages 4 figures. This is a written version of a talk presented at the workshop "Exclusive Reactions at High Momentum Transfer" May 21-24, 2007 Jefferson Lab, Newport News, VA USA Replacement makes the abstract and text consistent with Fig.4
Dolichogenidea dolichocephala
Creators: name: Fernandez-Triana, Jose
name: Sakagami, Kota
name: Shimizu, So
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Dolichogenidea
Dolichogenidea dolichocephala

description: D. dolichocephala (Muesebeck, 1921): Forewing veins mostly transparent; T2 mostly smooth; ovipositor sheath slightly longer (around 1.2 times) than metatibia.
description: Published as part of Fernandez-Triana, Jose, Sakagami, Kota & Shimizu, So, 2018, Dolichogenidea maetoi sp. nov. (Hymenoptera: Braconidae) from Japan, the first parasitoid wasp recorded from Hyblaea fortissima (Lepidoptera), pp. 167-175 in Acta Entomologica Musei Nationalis Pragae 58 (1) on page 172, DOI: 10.2478/aemnp-2018-0014, http://zenodo.org/record/3699178
A Unified Approach to Attractor Reconstruction
Creators: name: Pecora, Louis M.
name: Moniz, Linda
name: Nichols, Jonathan
name: Carroll, Thomas L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: In the analysis of complex, nonlinear time series, scientists in a variety of disciplines have relied on a time delayed embedding of their data, i.e. attractor reconstruction. The process has focused primarily on heuristic and empirical arguments for selection of the key embedding parameters, delay and embedding dimension. This approach has left several long-standing, but common problems unresolved in which the standard approaches produce inferior results or give no guidance at all. We view the current reconstruction process as unnecessarily broken into separate problems. We propose an alternative approach that views the problem of choosing all embedding parameters as being one and the same problem addressable using a single statistical test formulated directly from the reconstruction theorems. This allows for varying time delays appropriate to the data and simultaneously helps decide on embedding dimension. A second new statistic, undersampling, acts as a check against overly long time delays and overly large embedding dimension. Our approach is more flexible than those currently used, but is more directly connected with the mathematical requirements of embedding. In addition, the statistics developed guide the user by allowing optimization and warning when embedding parameters are chosen beyond what the data can support. We demonstrate our approach on uni- and multivariate data, data possessing multiple time scales, and chaotic data. This unified approach resolves all the main issues in attractor reconstruction.
description: 22 pages, revised version as submitted to CHAOS. Manuscript is currently under review. 4 Figures, 31 references
A decade of radial-velocity monitoring of Vega and new limits on the presence of planets
Creators: name: Hurt, Spencer A.
name: Quinn, Samuel N.
name: Latham, David W.
name: Vanderburg, Andrew
name: Esquerdo, Gilbert A.
name: Calkins, Michael L.
name: Berlind, Perry
name: Angus, Ruth
name: Latham, Christian A.
name: Zhou, George
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an analysis of 1524 spectra of Vega spanning 10 years, in which we search for periodic radial velocity variations. A signal with a periodicity of 0.676 days and a semi-amplitude of ~10 m/s is consistent with the rotation period measured over much shorter time spans by previous spectroscopic and spectropolarimetric studies, confirming the presence of surface features on this A0 star. The timescale of evolution of these features can provide insight into the mechanism that sustains the weak magnetic fields in normal A type stars. Modeling the radial velocities with a Gaussian process using a quasi-periodic kernel suggests that the characteristic spot evolution timescale is ~180 days, though we cannot exclude the possibility that it is much longer. Such long timescales may indicate the presence of failed fossil magnetic fields on Vega. TESS data reveal Vega's photometric rotational modulation for the first time, with a total amplitude of only 10 ppm, and a comparison of the spectroscopic and photometric amplitudes suggest the surface features may be dominated by bright plages rather than dark spots. For the shortest orbital periods, transit and radial velocity injection recovery tests exclude the presence of transiting planets larger than 2 Earth radii and most non-transiting giant planets. At long periods, we combine our radial velocities with direct imaging from the literature to produce detection limits for Vegan planets and brown dwarfs out to distances of 15 au. Finally, we detect a candidate radial velocity signal with a period of 2.43 days and a semi-amplitude of 6 m/s. If caused by an orbiting companion, its minimum mass would be ~20 Earth masses; because of Vega's pole-on orientation, this would correspond to a Jovian planet if the orbit is aligned with the stellar spin. We discuss the prospects for confirmation of this candidate planet.
description: 17 pages, 8 figures, 5 tables; accepted for publication in The Astronomical Journal
Additional file 1 of Injectisome T3SS subunits as potential chaperones in the extracellular export of Pectobacterium carotovorum subsp. carotovorum bacteriocins Carocin S1 and Carocin S3 secreted via flagellar T3SS
Creators: name: Wu, Huang-Pin
name: Derilo, Reymund C.
name: Chen, Han-Ling
name: Li, Tzu-Rung
name: Lagitnay, Ruchi Briam James S.
name: Chan, Yung-Chieh
name: Chuang, Yutin
name: Chuang, Duen-Yau
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Supplementary Fig 1. The Thermal Asymmetric Interlaced PCR (TAIL-PCR) [63] and the results from the process. (a) Schematic diagram of the TAIL-PCR process and the thermal conditions [63]; (b) Unknown nucleotides are amplified by three contiguous specific primers from Tn5 insert end sequence and using the same arbitrary primer per reaction; (c) Results from the TAIL-PCR. Lane 1 L1, indicate primary reaction, TH22–6 chromosome DNA as template DNA, that use specific primer PL1 and arbitrary primer N1; Lane 2 L1, indicate secondary reaction, dilute primary PCR product as template DNA, that use specific primer PL2 and arbitrary primer N1; Lane 3 L1, indicate tertiary reaction, dilute secondary PCR product as template DNA, that use specific primer PL3 and arbitrary primer N1. Another set of lanes 1A2 to 3A2 followed the same procedure and used the PA1 to PA3 and N3 as primers. All the tertiary TAIL-PCR products were sequenced with ABI sequencing system.
The quantum $J_{1}$--$J_{1}'$--$J_{2}$ spin-1 Heisenberg model: Influence of the interchain coupling on the ground-state magnetic ordering in 2D
Creators: name: Bishop, R. F.
name: Li, P. H. Y.
name: Darradi, R.
name: Richter, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the phase diagram of the isotropic $J_{1}$--$J_{1}'$--$J_{2}$ Heisenberg model for spin-1 particles on an anisotropic square lattice, using the coupled cluster method. We find no evidence for an intermediate phase between the Néel and stripe states, as compared with all previous results for the corresponding spin-1/2 case. However, we find a quantum tricritical point at $J_{1}'/J_{1} \approx0.66 \pm 0.03$, $J_{2}/J_{1} \approx0.35\pm0.02$, where a line of second-order phase transitions between the quasi-classical Néel and stripe-ordered phases (for $J_{1}'/J_{1} \lesssim 0.66$) meets a line of first-order phase transitions between the same two states (for $J_{1}'/J_{1} \gtrsim 0.66$)
description: 6 pages. 3 figures. Minor changes in content
Cyanobacterial factories for the global oceans
Creators: name: Zhong, Cheng
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 370801
subject: Biological oceanography

description: The data are 77 cyanobacaterial MAGs from 101 marine biofilm samples and 49 cyanobacterial MAGs from 91 seawater samples.