cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Performance predictive models in turning operations using neural networks
Creators: name: McGregor, Malcolm Robert
Publisher: name: University Of Tasmania
Year: 2023

description: Turning as a practical machining operation has been extensively studied in the past. The nature of chip formation, tool life, tool wear and force predictive models were a major focus of research over the years for this indispensable manufacturing process. Empirical models and mechanics of cutting models to performance prediction have been used to develop reliable quantitative predictive models. While a reasonable quantitative reliability is achieved by these two methods the rigour involved with empirical methods and intricate modeling involved for mechanics of cutting models have forced investigators to look for alternative models. Both empirical and mechanics of cutting approaches have been found to be direct modeling techniques, where a set of process variables are fed into the respective models for a performance output. In recent years neural networks have been found to be applicable to variety of manufacturing applications and more particularly to decision making and as a tool for performance estimation. The quantitative reliability of the developed neural network models depends on the extent of training data. In this thesis a comprehensive review of the machining performance of models is carried out. The survey reviewed the mechanics of cutting models, empirical models and neural network architectures for performance prediction and their limitations. A comprehensive range of turning experiments covering a range of cutting variables, tool-geometrical variables, hardness and tool coating is carried out. This experimental investigation, while complementing the established trends in the literature, is used to train and test the developed neural network models. The qualitative and quantitative effects of major process variables on turning performance are established using statistical routines. A part of this investigation also covered the coated and un-coated cutting tool data for turning performance to check the claimed superiority of the coated tools. It has been found that developed neural network architecture can be used as both direct and inverse models for excellent quantitative reliability. This thesis is a step towards understanding the functioning of neural network architectures for performance estimation and eventual 'on line' use for performance prediction and control of practical machining operations.
Additional file 1 of Simulation-based training following a theoretical lecture enhances the performance of medical students in the interpretation and short-term retention of 20 cross-sectional transesophageal echocardiographic views: a prospective, randomized, controlled trial
Creators: name: Zhao, Yang
name: Yuan, Zong-Yi
name: Zhang, Han-Ying
name: Yang, Xue
name: Qian, Duo
name: Lin, Jing-Yan
name: Zhu, Tao
name: Song, Hai-bo
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1: Additional material 1. The Comparison of pre-test between Group V and Group S Note: Qualitative data presented as the number for the sum of trainees who responded with correct or wrong interpretation of each anatomic structure, analyzed by Chi-squared test or adjusted Chi-squared test. Continuous data presented as median and quartiles for mean total performance, analyzed by a 2-sample Mann-Whitney U test.
Temperature dependence of ESR in CdS (I)
Creators: name: Perkin, Ronald Gordon
Publisher: name: University of British Columbia
Year: 2011

description: Previous measurements on CdS (I) have shown a temperature shift in the single electron spin resonance (ESR) impurity band line. At 34 GHz this shift was found to be: dg= - 2.5 x 10ˉ ⁴/°K dT in going from 4.2°K to 1.7°K. This thesis presents the construction and testing of a metal temperature controlled dewar for the purpose of measuring the shift over the temperature range from 40°K to 1.7°K using an X-band (9 GHz)spectrometer. The signal was observed between 1.7°K and 4.2°K but rapidly broadened and could not be seen at higher temperatures. Since the lowest attainable temperature of the metal dewar was around 5°K, it could not be used as planned. Further studies using glass dewars proved that the g-shift at 9 GHz was too small, to be measured. The theory for the g-shift is discussed and the performance of the dewar evaluated.
RNAvigate: efficient exploration of RNA chemical probing datasets
Creators: name: Weeks, Kevin M
name: Irving, Patrick S
Publisher: name: Oxford University Press (OUP)
Year: 2024

description: Chemical probing technologies enable high-throughput examination of diverse structural features of RNA, including local nucleotide flexibility, RNA secondary structure, protein and ligand binding, through-space interaction networks, and multistate structural ensembles. Deep understanding of RNA structure-function relationships typically requires evaluating a system under structure- and function-altering conditions, linking these data with additional information, and visualizing multilayered relationships. Current platforms lack the broad accessibility, flexibility and efficiency needed to iterate on integrative analyses of these diverse, complex data. Here, we share the RNA visualization and graphical analysis toolset RNAvigate, a straightforward and flexible Python library that automatically parses 21 standard file formats (primary sequence annotations, per- and internucleotide data, and secondary and tertiary structures) and outputs 18 plot types. RNAvigate enables efficient exploration of nuanced relationships between multiple layers of RNA structure information and across multiple experimental conditions. Compatibility with Jupyter notebooks enables nonburdensome, reproducible, transparent and organized sharing of multistep analyses and data visualization strategies. RNAvigate simplifies and accelerates discovery and characterization of RNA-centric functions in biology.
«Мягкая сила» России: теория и реальность
Creators: name: Косачев К. И.
Publisher: name: Вестник международных организаций: образование, наука, новая экономика
Year: 2014
Subjects: МЯГКАЯ СИЛА

description: За последнее время мы имели возможность наблюдать в России две волны общественного интереса к проблематике так называемой «мягкой силы». В 2012-2013 гг. это было связано с прямым обращением к этой теме В.В. Путина сначала в его предвыборной статье «Россия и меняющийся мир» в газете «Московские новости» 27 февраля 2012 г., а затем и в целом ряде президентских указов и выступлений, постановлений палат Федерального собрания и материалов МИД России. В новой редакции Концепции внешней политики Российской Федерации, утвержденной в феврале 2013 г., понятие «мягкая сила» получило свое юридическое оформление как «комплексный инструментарий решения внешнеполитических задач с опорой на возможности гражданского общества, информационно-коммуникационные, гуманитарные и другие альтернативные классической дипломатии методы и технологии».
A new Garside structure for braid groups of type $(e,e,r)$
Creators: name: Corran, Ruth
name: Picantin, Matthieu
Publisher: name: arXiv
Year: 2009
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We describe a new presentation for the complex reflection groups of type $(e,e,r)$ and their braid groups. A diagram for this presentation is proposed. The presentation is a monoid presentation which is shown to give rise to a Garside structure. A detailed study of the combinatorics of this structure leads us to describe it as post-classical.
Single-Photon Entanglement in the keV Regime via Coherent Control of Nuclear Forward Scattering
Creators: name: Pálffy, Adriana
name: Keitel, Christoph H.
name: Evers, Jörg
Publisher: name: arXiv
Year: 2009
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Generation of single-photon entanglement is discussed in nuclear forward scattering. Using successive switchings of the direction of the nuclear hyperfine magnetic field, the coherent scattering of photons on nuclei is controlled such that two signal pulses are generated out of one initial pump pulse. The two time-resolved correlated signal pulses have different polarizations and energy in the keV regime. Spatial separation of the entangled field modes and extraction of the signal from the background can be achieved with the help of state-of-the-art x-ray polarizers and piezoelectric fast steering mirrors.
description: minor changes, updated to the final version; 4 pages, 2 figures
Hierarchy of relevant couplings in perturbative renormalization group transformations
Creators: name: Shih, Hong-Yan
name: Huang, Wen-Min
name: Hsu, Sze-Bi
name: Lin, Hsiu-Hau
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The phase diagram for the interacting fermions in weak coupling is described by the perturbative renormalization group equations. Due to the lack of analytic solutions for these coupled non-linear differential equations, it is rather subtle to tell which couplings are relevant or irrelevant. We propose a powerful classification scheme to build up the hierarchy of the relevant couplings by a scaling Ansatz found numerically. To demonstrate its superiority over the conventional classification for the relevant couplings, we apply this scheme to a controversial phase transition in the two-leg ladder and show that it should be a non-trivial crossover instead. The scaling Ansatz we propose here can classify the relevant couplings in hierarchical order without any ambiguity and can improve significantly how we interpret the numerical outcomes in general renormalization group methods.
description: 5 pages, 3 figures
On the distance and reddening of the starburst galaxy IC10
Creators: name: Sanna, N.
name: Bono, G.
name: Stetson, P. B.
name: Monelli, M.
name: Pietrinferni, A.
name: Drozdovsky, I.
name: Caputo, F.
name: Cassisi, S.
name: Gennaro, M.
name: Moroni, P. G. Prada
name: Buonanno, R.
name: Corsi, C. E.
name: Degl'Innocenti, S.
name: Ferraro, I.
name: Iannicola, G.
name: Nonino, M.
name: Pulone, L.
name: Romaniello, M.
name: Walker, A. R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present deep and accurate optical photometry of the Local Group starburst galaxy IC10. The photometry is based on two sets of images collected with the Advanced Camera for Surveys and with the Wide Field Planetary Camera 2 on board the Hubble Space Telescope. We provide new estimates of the Red Giant Branch tip (TRGB) magnitude, m_{F814W}^{TRGB}=21.90+-0.03, and of the reddening, E(B-V)=0.78+-0.06, using field stars in the Small Magellanic Cloud (SMC) as a reference. Adopting the SMC and two globulars, Omega Centauri and 47 Tucanae, as references we estimate the distance modulus to IC10: independent calibrations give weighted average distances of mu=24.51+-0.08 (TRGB) and mu=24.56+-0.08 (RR Lyrae). We also provide a new theoretical calibration for the TRGB luminosity, and using these predictions we find a very similar distance to IC10 (mu~24.60+-0.15). These results suggest that IC10 is a likely member of the M31 subgroup.
description: 4 pages, 4 figures, ApJ Letters accepted
An all-sky Atlas of Radio/X-ray Associations
Creators: name: Flesch, Eric
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: An all-sky comprehensive catalog of calculated radio and X-ray associations to optical objects is presented. Included are X-ray sources from XMM-Newton, Chandra and ROSAT catalogs, radio sources from NVSS, FIRST and SUMSS catalogs, and optical data, identifications and redshifts from the APM, USNO-A, SDSS-DR7 and the extant literature. This "Atlas of Radio/X-ray Associations" inherits many techniques from the predecessor Quasars.org (2004) catalog, but object selection is changed and processing tweaked. Optical objects presented are those which are calculated with >=40% confidence to be associated with radio/X-ray detections, totalling 602570 objects in all, including 23681 double radio lobe detections. For each of these optical objects I display the calculated percentage probabilities of its being a QSO, galaxy, star, or erroneous radio/X-ray association, plus any identification from the literature. The catalogue includes 105568 uninvestigated objects listed as 40% to >99% likely to be a QSO. The catalog is available at http://quasars.org/arxa.htm .
description: 6 pages, accepted by Publications of the Astronomical Society of Australia
Additional file 1 of Postgraduate ethics training programs: a systematic scoping review
Creators: name: Hong, Daniel Zhihao
name: Goh, Jia Ling
name: Ong, Zhi Yang
name: Ting, Jacquelin Jia Qi
name: Wong, Mun Kit
name: Wu, Jiaxuan
name: Tan, Xiu Hui
name: Toh, Rachelle Qi En
name: Chiang, Christine Li Ling
name: Ng, Caleb Wei Hao
name: Ng, Jared Chuan Kai
name: Ong, Yun Ting
name: Cheong, Clarissa Wei Shuen
name: Tay, Kuang Teck
name: Tan, Laura Hui Shuen
name: Phua, Gillian Li Gek
name: Fong, Warren
name: Wijaya, Limin
name: Neo, Shirlyn Hui Shan
name: Lee, Alexia Sze Inn
name: Chiam, Min
name: Chin, Annelissa Mien Chew
name: Krishna, Lalit Kumar Radha
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Full PubMed Search Strategy.
SILNews77 - The Israel National Culture Collection of Algae(INCCA) for biodiversity conservation.
Creators: name: Kaplan-Levy, Ruth N
name: Alster, Alla
name: Lang-Yona, Naama
name: Zohary, Tamar
Publisher: name: Zenodo
Year: 2021

description: Kaplan-Levy R, Alster A, Lnag-Yona N, Zohary T 2021.The Israel National Culture Collection of Algae (INCCA) for biodiversity conservation. SILNews77
Analysis of radio recombination lines
Creators: name: Perley, Richard Alan
Publisher: name: University of British Columbia
Year: 2011

description: The formation of spectral lines in the radio region from galactic nebulae is studied. Equations describing the strengths of these lines are developed for both the local thermodynamic equilibrium case and the statistical equilibrium case. An experiment in which radio lines from galactic nebulae were detected is described. The reduction of the observations to obtain estimates of the temperature and density of the galactic gas is performed, and comments on the validity of the analysis are included.
Search for associated production of charginos and neutralinos in the trilepton final state using 2.3 fb-1 of data
Creators: name: D0 Collaboration
name: Abazov, V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report the results of a search for associated production of charginos and neutralinos using a data set corresponding to an integrated luminosity of 2.3 fb-1 collected with the D0 experiment during Run II of the Tevatron proton-antiproton collider. Final states containing three charged leptons and missing transverse energy are probed for a signal from supersymmetry with four dedicated trilepton event selections. No evidence for a signal is observed, and we set limits on the product of production cross section and leptonic branching fraction. Within minimal supergravity, these limits translate into bounds on m_0 and m_1/2 that are well beyond existing limits.
description: submitted to Phys. Lett. B
Divergent thinking and personality in young adolescents : a critical analysis
Creators: name: Montgomery, IM
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis explored the relationship between two divergent thinking variables, originality and fluency, and three personality variables, extraversion, neuroticism, and tendency to dissimulate (a Lie Scale). Divergent thinking was measured by adaptations of the Uses Test (c.f. Wilson, Guilford and Christensen, 1953), and the three personality variables were measured by the New Junior Maudsley Inventory (Furneaux and Gibson, 1966). Testing was conducted on three groups of adolescent children, one sample of 44 boys, one of 43 girls, and one of 68 girls. There were no significant relationships between the divergent thinking variables and extraversion or neuroticism when each of the three samples were examined under untimed conditions of divergent thinking testing. Tendency to dissimulate was significantly and positively related to divergent thinking in the sample of 43 girls. However, when 34 girls from this group were re-tested fourteen months after initial testing, the tendency to dissimulate divergent thinking relationship was not present, and the measures of both tendency to dissimulate and extraversion showed relatively low test-retest reliability coefficients. It was considered possible that failure to demonstrate divergent thinking-extraversion relationships may have been due to the testing of divergent thinking under untimed conditions, since extraverts show less persistence and greater speed of performance than introverts (Eysenck, 1967). To explore this possibility the group of 68 girls was tested for divergent thinking under timed as well as untimed conditions. In this study no significant divergent thinking-personality relationships were established. In a critical consideration of the results it was suggested that other research approaches could be more productive in the study of divergent thinking. In particular, divergent thinking might be seen as a skill, as a situation specific behaviour, or as related to the adoption of a role. Experimental study of individual cases was suggested as a possible method for investigating the phenomenon of divergent thinking.
Особенности восприятия и подачи информации при политическом конфликте (на примере Украины)
Creators: name: Боташева А.К.
Publisher: name: Социально-экономические науки и гуманитарные исследования
Year: 2014
Subjects: УКРАИНА
КРЫМ
РОССИЙСКАЯ ФЕДЕРАЦИЯ
РЕФЕРЕНДУМ
СМИ
ВООРУЖЕННЫЙ КОНФЛИКТ

description: Мир стал свидетелем политического кризиса на Украине, приведшего к вооруженному конфликту боевым действиям на территории государства, высшее руководство которого никто не мог заподозрить в желании развязать гражданскую войну. Тем не менее военные столкновения между боевыми силами и другими вооруженными отрядами Украины и отрядами ополченцев, активно воюющих за самопровозглашённые Донецкую и Луганскую Народные Республики, с другой, идут на территории Украины.
Ionic Hubbard model on a triangular lattice for Na_0.5CoO_2, Rb_0.5CoO_2 and K_0.5CoO_2: Mean-field slave boson theory
Creators: name: Powell, B. J.
name: Merino, J.
name: McKenzie, Ross H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We introduce a strongly correlated mean-field theory of the ionic Hubbard model on the triangular lattice with alternating stripes of site energy using Barnes-Coleman slave bosons. We study the paramagnetic phases of this theory at three quarters filling, where it is a model of Na_0.5CoO_2, Rb_0.5CoO_2, and K_0.5CoO_2. This theory has two bands of fermionic quasi-particles: one of which is filled or nearly filled and hence weakly correlated; the other is half-filled or nearly half-filled and hence strongly correlated. Further results depend strongly on the sign of the hopping integral, t. The light band is always filled for t>0, but only becomes filled for |Delta/t|>=1.5 for t<0, where Delta is the difference in the site energies of the two sublattices. A metal--charge transfer insulator transition occurs at |Delta/t|=5.0 for t>0 and |Delta/t|=8.0 for t<0. In the charge transfer insulator complete charge disproportionation occurs: one sublattice is filled and the other in half filled. We compare our results with exact diagonalisation calculations and experiments on Na_0.5CoO_2, and discuss the relevance of our results to Rb_0.5CoO_2 and K_0.5CoO_2. In particular we propose a resolution of seemingly contradictory experimental results on Na_0.5CoO_2. Many experiments suggest that there is a charge gap, yet quantum oscillations are observed suggesting the existence of quasiparticle states at arbitrarily low excitation energies. We argue that the heavy band is gapped while the light band, which contains less than 1 charge carrier per 100 unit cells, remains ungapped.
description: To appear in PRB. 19 pages, 19 figures, 6 movies. References added
Additional file 2 of High TXNIP expression accelerates the migration and invasion of the GDM placenta trophoblast
Creators: name: Sa, Rina
name: Ma, Jing
name: Yang, Jie
name: Li, Dong Fang
name: Du, Jie
name: Jia, Jian Chao
name: Li, Zhi Ying
name: Huang, Na
name: A, Lamusi
name: Sha, Rula
name: Nai, Gal
name: Hexig, Bayar
name: Meng, Ji Qing
name: Yu, Lan
Publisher: name: figshare
Year: 2023
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Computational Biology

description: Additional file 2: Supplementary Figure 2: Compared with the vector control group, the total protein expression of STAT3 in TetTXNIP group was not change.
Statistics of the gravitational force in various dimensions of space: from Gaussian to Levy laws
Creators: name: Chavanis, Pierre-Henri
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the distribution of the gravitational force created by a Poissonian distribution of field sources (stars, galaxies,...) in different dimensions of space d. In d=3, it is given by a Levy law called the Holtsmark distribution. It presents an algebraic tail for large fluctuations due to the contribution of the nearest neighbor. In d=2, it is given by a marginal Gaussian distribution intermediate between Gaussian and Levy laws. In d=1, it is exactly given by the Bernouilli distribution (for any particle number N) which becomes Gaussian for N>>1. Therefore, the dimension d=2 is critical regarding the statistics of the gravitational force. We generalize these results for inhomogeneous systems with arbitrary power-law density profile and arbitrary power-law force in a d-dimensional universe.
The reduction and analysis of seismic data using digital computers.
Creators: name: Muirhead, Kenneth John
Publisher: name: University Of Tasmania
Year: 2023

description: ALTHOUGH THE DEVELOPMENT AND INSTALLATION OF SEISMIC ARRAYS DURING THE PRESENT DECADE HAS CONSIDERABLY IMPROVED THE QUALITY OF SEISMIC DATA AVAILABLE, THESE ARRAYS HAVE NOT, AS YET, HAD THE IMPACT IN THE FIELD OF SEISMOLOGY WHICH MIGHT BE EXPECTED. ONE OF THE PRINCIPAL REASONS FOR THIS, AND WITH WHICH THIS THESIS IS' PRIMARILY CONCERNED, IS THE REQUIREMENT OF MEANS OF PROCESSING THE ARRAY OUTPUT, EITHER AUTOMATICALLY OR SEMIAUTOMATICALLY, IN ORDER TO UTILIZE THE ADVANTAGES WHICH'AN ARRAY . CAN PROVIDE. THE INITIAL PART OF THIS THESIS DESCRIBES A SYSTEM, .USING A: GENERAL PURPOSE DIGITAL COMPUTER, WHICH HAS BEEN DEVELOPED TO PROCESS THE OUTPUT OF THE WARRAMUNGA ARRAY IN AUSTRALIA. USING THIS SYSTEM THE FOLLOWING TOPICS, WHICH ARE DISCUSSED HEREIN, HAVE BEEN STUDIED'. 1. THE INITIAL AUTOMATIC DETECTION OF SEISMIC EVENTS. THIS PROBLEM HAS BEEN INVESTIGATED USING TWO DIFFERENT APPROACHES. THE FIRST HAS BEEN TO SIMULATE AN ON-LINE DETECTOR AT THE ARRAY WHILE THE SECOND IS A FEASIBILITY STUDY OF DETECTING EVENTS USING A DIGITAL COMPUTER. 2. THE EDITING OF SEISMIC EVENTS IN ORDER TO REDUCE DATA STORAGE REQUIREMENTS AS WELL AS TO IMPROVE DATA ACCESSIBILITY. 3. THE MEASUREMENT OF THE AZIMUTH AND APPARENT VELOCITY OF SEISMIC EVENTS. 4. THE INVESTIGATION OF METHODS WHEREBY AN AUTOMATIC ANALYSING SYSTEM CAN OVERCOME THE PROBLEM OF SPURIOUS NOISE ON THE ARRAY RECORDS WITHOUT EXTREME DEMANDS ON THE USE OF A COMPUTER. IN ADDITION TO THESE TOPICS, THE ENHANCEMENT OF SEISMIC EVENTS USING AN ARRAY IS DESCRIBED TOGETHER WITH RESULTS OF PROCESSING SEISMIC EVENTS.
Additional file 1 of Insulin growth factor axis and cardio-renal risk in diabetic kidney disease: an analysis from the CREDENCE trial
Creators: name: Mohebi, Reza
name: Liu, Yuxi
name: Hansen, Michael K.
name: Yavin, Yshai
name: Sattar, Naveed
name: Pollock, Carol A.
name: Butler, Javed
name: Jardine, Meg
name: Masson, Serge
name: Heerspink, Hiddo J. L.
name: Januzzi Jr, James L.
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Marine Biology

description: Additional file 1: Table S1. Baseline characteristics according to IGFBP-3 quartiles. Table S2. Baseline characteristics according to IGF-1/IGFBP-3 quartiles. Table S3. Adjusted geometric mean ratio of biomarkers expressing adjusted relative difference in concentration at Year 1 and Year 3 versus baseline following treatment with either canagliflozin or placebo. Table S4. IGF-1 reference range. Table S5. Baseline characteristics of study population according to IGF-1 level. Table S6. Biomarker concentration across chronic kidney disease stages. Figure S1. CONSORT diagram. Figure S2. Restricted cubic spline model displaying the log hazard ratios for primary composite outcome.
Zero field level crossing in the helium atom
Creators: name: Bardsley, Robert Eckardt
Publisher: name: University of British Columbia
Year: 2011

description: Zero-field level crossing techniques have been used to measure some upper state lifetimes of the helium atom. The upper states of the atom were excited in a discharge between two capacitor plates. A radio frequency voltage was applied to these plates by a 450 MHz source. The emitted light was modulated by rotating a quarter-wave plate in front of a polaroid in the beam of emitted light. The polarization, which is directly related to this modulation, was measured by a phase sensitive lock-in amplifier. The halfwidths of curves obtained by plotting the polarization against the magnetic field strength for the n¹D - 2¹P transitions yielded lifetimes of; 2.71 x 10(-8) sec. for the 3¹D state, 3.97 x 10(-8) sec. for the 4¹D state and 4.48 x 10(-8) sec. for the 5¹D state.
Optimal model selection for density estimation of stationary data under various mixing conditions
Creators: name: Lerasle, Matthieu
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We propose a block-resampling penalization method for marginal density estimation with nonnecessary independent observations. When the data are $β$ or $τ$-mixing, the selected estimator satisfies oracle inequalities with leading constant asymptotically equal to 1. We also prove in this setting the slope heuristic, which is a data-driven method to optimize the leading constant in the penalty.
description: Published in at http://dx.doi.org/10.1214/11-AOS888 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Developing a Digital Scholarship Service at the National Library of Scotland: the first year
Creators: name: Ames, Sarah
Publisher: name: Zenodo
Year: 2021
Subjects: digital scholarship
digital humanities
collections as data
data
digitisation
libraries
service development

description: Over the past few years, Digital Scholarship has evolved as an area that Research Libraries can support, both through the use of their collections and as service providers. Meanwhile the Collections as Data movement has gained increasing traction in recent years, and with libraries now undertaking mass digitisation in-house, we are able to publish these as data sets for consumption and research. Consequently there is now much interest in the development of Digital Scholarship Services.

 In March 2019 the National Library of Scotland recruited its first dedicated Digital Scholarship Librarian to build a new Digital Scholarship Service. This presentation will trace the first year of the service (March 2019 to March 2020), highlighting the challenges, successes, and lessons of setting up a Digital Scholarship Service within a National Library.
Predicted gamma-ray image of SN 1006 due to inverse Compton emission
Creators: name: Petruk, O.
name: Bocchino, F.
name: Miceli, M.
name: Dubner, G.
name: Castelletti, G.
name: Orlando, S.
name: Iakubovskyi, D.
name: Telezhinsky, I.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We propose a method to synthesize the inverse Compton (IC) gamma-ray image of a supernova remnant starting from the radio (or hard X-ray) map and using results of the spatially resolved X-ray spectral analysis. The method is successfully applied to SN 1006. We found that synthesized IC gamma-ray images of SN 1006 show morphology in nice agreement with that reported by the H.E.S.S. collaboration. The good correlation found between the observed very-high energy gamma-ray and X-ray/radio appearance can be considered as an evidence that the gamma-ray emission of SN 1006 observed by H.E.S.S. is leptonic in origin, though the hadronic origin may not be excluded.
description: 10 pages, 11 figures, accepted in MNRAS
On the relationship between nonlinear equations integrable by the method of characteristics and equations associated with commuting vector fields
Creators: name: Zenchuk, A. I.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: It was shown recently that Frobenius reduction of the matrix fields reveals interesting relations among the nonlinear Partial Differential Equations (PDEs) integrable by the Inverse Spectral Transform Method ($S$-integrable PDEs), linearizable by the Hoph-Cole substitution ($C$-integrable PDEs) and integrable by the method of characteristics ($Ch$-integrable PDEs). However, only two classes of $S$-integrable PDEs have been involved: soliton equations like Korteweg-de Vries, Nonlinear Shrödinger, Kadomtsev-Petviashvili and Davey-Stewartson equations, and $GL(N,\CC)$ Self-dual type PDEs, like Yang-Mills equation. In this paper we consider the simple five-dimensional nonlinear PDE from another class of $S$-integrable PDEs, namely, scalar nonlinear PDE which is commutativity condition of the pair of vector fields. We show its origin from the (1+1)-dimensional hierarchy of $Ch$-integrable PDEs after certain composition of Frobenius type and differential reductions imposed on the matrix fields. Matrix generalization of the above scalar nonlinear PDE will be derived as well.
description: 14 pages, 1 figure
Study of cylindrical imploding detonations
Creators: name: Huni, Jean Paul R.
Publisher: name: University of British Columbia
Year: 2011

description: The theory of imploding detonations predicts a focusing effect by which the temperature, the pressure and the front velocity are drastically increased as the front reaches the center of implosion. We have verified this effect in cylindrical imploding detonations by measuring the front velocity, the pressure and the temperature. The velocity measurements, which are the first of their kind, and the pressure measurements, which agree with the previous results obtained by Lee et al /l/, both confirm the theory quantitatively. The temperature measurements, on the other hand, are inconclusive due to the fact that thermal equilibrium is not attained in the vibrational levels of the molecules of the reaction products. Two useful applications of the detonation properties are presented: 1) A method of generating plane hypersonic shock waves with a cylindrical imploding detonation was developed and 2) plane detonations were used to calibrate piezoelectric pressure probes in a high pressure range.
Analyse spectrale des textes: détection automatique des frontières de langue et de discours
Creators: name: Vaillant, Pascal
name: Nock, Richard
name: Henry, Claudia
Publisher: name: arXiv
Year: 2008
Subjects: subject: Computation and Language (cs.CL)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences
subject: H.3.3; I.2.7

description: We propose a theoretical framework within which information on the vocabulary of a given corpus can be inferred on the basis of statistical information gathered on that corpus. Inferences can be made on the categories of the words in the vocabulary, and on their syntactical properties within particular languages. Based on the same statistical data, it is possible to build matrices of syntagmatic similarity (bigram transition matrices) or paradigmatic similarity (probability for any pair of words to share common contexts). When clustered with respect to their syntagmatic similarity, words tend to group into sublanguage vocabularies, and when clustered with respect to their paradigmatic similarity, into syntactic or semantic classes. Experiments have explored the first of these two possibilities. Their results are interpreted in the frame of a Markov chain modelling of the corpus' generative processe(s): we show that the results of a spectral analysis of the transition matrix can be interpreted as probability distributions of words within clusters. This method yields a soft clustering of the vocabulary into sublanguages which contribute to the generation of heterogeneous corpora. As an application, we show how multilingual texts can be visually segmented into linguistically homogeneous segments. Our method is specifically useful in the case of related languages which happened to be mixed in corpora.
description: In French. 10 pages, 5 figures, LaTeX 2e using EPSF and custom package taln2006.sty (designed by Pierre Zweigenbaum, ATALA). Proceedings of the 13th annual French-speaking conference on Natural Language Processing: `Traitement Automatique des Langues Naturelles' (TALN 2006), Louvain (Leuven), Belgium, 10-13 April 2003
Winding of planar gaussian processes
Creators: name: Doussal, Pierre Le
name: Etzioni, Yoav
name: Horovitz, Baruch
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a smooth, rotationally invariant, centered gaussian process in the plane, with arbitrary correlation matrix $C_{t t'}$. We study the winding angle $ϕ_t$ around its center. We obtain a closed formula for the variance of the winding angle as a function of the matrix $C_{tt'}$. For most stationary processes $C_{tt'}=C(t-t')$ the winding angle exhibits diffusion at large time with diffusion coefficient $D = \int_0^\infty ds C'(s)^2/(C(0)^2-C(s)^2)$. Correlations of $\exp(i n ϕ_t)$ with integer $n$, the distribution of the angular velocity $\dot ϕ_t$, and the variance of the algebraic area are also obtained. For smooth processes with stationary increments (random walks) the variance of the winding angle grows as ${1/2} (\ln t)^2$, with proper generalizations to the various classes of fractional Brownian motion. These results are tested numerically. Non integer $n$ is studied numerically.
description: 12 pages, 6 figures
Revisiting B->phi pi Decays in the Standard Model
Creators: name: Li, Ying
name: Lu, Cai-Dian
name: Wang, Wei
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the standard model (SM), we re-investigate the rare decay $B\to ϕπ$, which has been viewed as an ideal probe to detect the new physics signals beyond the SM. Contributions in the naive factorization method, the radiative corrections, the long-distance contributions, and the contributions due to the $ω$-$ϕ$ mixing are taken into account. We find that the tiny branching ratio in the naive factorization can be dramatically enhanced by the radiative corrections and the $ω$-$ϕ$ mixing effect, while the long-distance contributions are negligibly small. Assuming the Cabibbo-Kobayashi-Maskawa angle $γ=(58.6\pm 10)^\circ$ and the mixing angle $θ= -(3.0\pm 1.0)^\circ$, we obtain the branching ratios of $B\to ϕπ$ as $ {\rm Br}(B^\pm\to ϕπ^\pm)= (3.2 ^{+0.8-1.2}_{-0.7+1.8}) \times 10^{-8}$ and $ {\rm Br}(B^0 \to ϕπ^0) = (6.8 ^{+0.3-0.7}_{-0.3+1.0}) \times 10^{-9}$. If the future experiment reports a branching ratio of order $10^{-7}$ for $B^-\to ϕπ^-$ decay, it may not be a clear signal for any new physics scenario. In order to discriminate the large new physics contributions and those due to the $ω$-$ϕ$ mixing, we propose to measure the ratio of branching fractions of the charged and neutral B decay channel. We also study the direct CP asymmetries of these two channels, and the results are about $(-8.0^{+0.9+1.5}_{-1.0-0.1})%$ and $(-6.3^{-0.5+2.5}_{+0.7-2.5})%$ for $B^\pm\to ϕπ^\pm$ and $B^0 \to ϕπ^0$, respectively.
description: 11 pages, 5 figures
Digital Atlas of Australia - eResearch Australasia 2021 Birds of a Feather Presentation
Creators: name: Jakab, Matt
Publisher: name: Zenodo
Year: 2021
Subjects: geospatial
geoscience
Australia
data
location

description: Presentation by Matt Jakab (Geoscience Australia) on the "Digital Atlas of Australia", delivered at the eResearch Australasia 2021 Birds of a Feather session "Geospatial Capabilities for the next decade: scale, sector and pathways for collaboration and utilisation of spatial data infrastructures"
Additional file 1 of How socioeconomic status affected the access to health facilities and malaria diagnosis in children under five years: findings from 19 sub-Saharan African countries
Creators: name: Ge, Yue
name: Liang, Di
name: Cao, Jun
name: Gosling, Roland
name: Mushi, Vivian
name: Huang, Jiayan
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Table S1. Percentages of febrile children under five who sought care and percentages of care-seekers who received blood tests by country. Table S2. Regional differences in care-seeking behaviors and receipt of blood tests by country. Table S3. Regression results on determinants of care-seeking behaviors and receipt of blood tests for malaria in children. Table S4. Regression results on determinants of blood tests for malaria in children (Stratified analysis). Table S5. Regression results on determinants of care-seeking behaviors and receipt of blood tests for malaria in children (sensitive analyses). Table S6. Predicted probability of receiving blood tests with 95% CIs by mother & partner’s highest education level across facility types. Table S7. Predicted probability of receiving blood tests with 95% CIs by wealth quintile across facility types. Fig. S1. Algorithm for uncomplicated Plasmodium falciparum malaria diagnosis and treatment. Note: This figure was generated by the authors according to the WHO 2021 Guidelines for malaria. a Danger signs for severe falciparum malaria can be found in WHO 2021 Guidelines for malaria[5].b For the treatment after admission, please see World Health Organization, Universal access to malaria diagnostic testing – An operational manual, 2013.c Pre-referral treatment as recommended by WHO 2021 Guidelines for malaria[5]. Fig. S2. Flow diagram of samples for each treatment cascade. Note: All numbers are unweighted. Fig. S3. Crosstabs of facility type and children’s SES. Distribution of facility type by the highest education level of children’s parents. (B) Distribution of facility type by wealth quintile. (C) Distribution of the highest education level of children’s parents by facility type. (D) Distribution of wealth quintile by facility type.
An SU(4) Grassmannian model for particles
Creators: name: Kosasih, Jusak Sali
Publisher: name: University Of Tasmania
Year: 2023

description: An alternative formulation of SU(3)c x SU(2)L, x U(1)y of the standard model is presented in which four extra complex Grassmann coordinates are appended to space-time coordinates. The three families of leptons and quarks are imbedded in the fermionic sector of an overall bosonic superfield and the Higgs fields are imbedded in the Lorentz scalar sector of the superfield. The SU(3) SU(2)L, x U(1) y multiplet structure can be assigned to the component fields by introducing the corresponding generators acting in Grassmann space and the V ‚ÄövÑvÆ A structure of the weak current turns out as the result of the minimal fermionic representation. The particle multiplets are anomaly-free but not asymptotically free due to extra exotic states. The Yukawa interaction appears from the trilinear interaction of the master superfield, but the spontaneously symmetry breaking cannot be reproduced from the analogous quartic super-Higgs potential. Unfortunately, the resulting mass spectrum of the standard particles (quarks and leptons) cannot be reconciled with the experimental results. However the standard SU(3) x SU(2) x U(1) gauge interaction can be reproduced for the minimal gauge group. The 'extended' gauge group includes leptoquarks as well as interfamilial interactions.
An Assessment of Petroleum Fiscal Regime and its Strategic Implications on Foreign Direct Investment (FDI): A Case in Point, Ghana.
Creators: name: Issah, Mohammed
Publisher: name: figshare
Year: 2021
Subjects: Uncategorized

description: For the exploitation of their hydrocarbon reserves, most nations rely on major international oil corporations (IOCs). And where ever they eventuate, there are sensitive technical (technological), geopolitical, financial and legal complexities in the exploration and extraction processes. Any solution to these complexities necessitates a willingness of leverage among both the host nations' interests and the investors' interests. Almost inevitably, because these countries (e.g. Ghana) are mostly frontier petroleum nations, it is exceedingly unlikely that the country will have the required technological know–how itself and, as such, foreign engagement will be needed. The study's main aim is to analyse "Ghana's upstream oil and gas fiscal regime and its strategic implications on foreign direct investment (FDI)" utilising secondary data. The data were mainly extracted from the Bank of Ghana (BoG), Petroleum Commission (PC), GNPC, and the World Bank. This article intends to apply or exploit such attributes as a conceptual approach to query: "Does Ghana's upstream oil and gas fiscal systems attain the optimal or maximum symmetry among both optimising government revenue creation and facilitating FDI?" It does so by underlining the design, tools, and strategies put forth by the government of Ghana to assure FDI inflows into the upstream hydrocarbon sub–sector. According to the analysis, Ghana has benefited so far from the discovery of oil and natural gas in commercial quantities, which has also led to an increase in the FDI inflows into the country. The FDI inflows have led to an upsurge in bidding by multi–national oil and gas companies, which have also led to more discoveries on both existing and new plays. Ghana has generated a considerable amount of revenue from the extraction process in the upstream sub–sector, which has contributed to the growth in GDP, though that revenue declined during the pandemic same also applies to the employment sector. Ghana must learn to harness its resources (i.e. oil and gas) through strategic policies aimed at fully empowering the economy and creating employment for the population, just as Norway has done with its petroleum resources.
Determination of the donor pair exchange energy in phosphorus-doped silicon
Creators: name: Cullis, Pieter Rutter
Publisher: name: University of British Columbia
Year: 2011

description: The e.p.r. spectrum for relatively dilute samples of phosphorus-doped silicon (<5 x 10(16) donors/cm³) has been calculated in detail for an assumed random distribution of impurities. The system of donor electron spins is treated as a collection of nearest neighbor donor pairs. An expression is derived for the donor pair exchange energy using Kohn-Luttinger wavefunctions and a general exchange energy expression. The resultant relationship contains an adjustable parameter a*, the "effective Bohr radius", which is determined from a comparison of the calculated spectrum and the experimental results obtained for the ratio, C, of the "central pair" and "hyperfine" line intensities. The resulting expression J(R), where J represents the exchange energy and R the separation vector connecting the two pair donors, exhibits an oscillatory spatial dependence due to interference from portions of the wavefunction arising from different conduction band valleys.
Physical Properties of Very Powerful FRII Radio Galaxies
Creators: name: O'Dea, Christopher P.
name: Daly, Ruth A.
name: Kharb, Preeti
name: Freeman, Kenneth A.
name: Baum, Stefi A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We estimate ages and physical properties of powerful radio galaxies. An analysis of new multi-wavelength VLA observations of eleven very powerful classical double (FRIIb) radio galaxies with redshifts between 0.4 and 1.3 is presented. We estimate ages and velocities for each side of each source. The eleven new sources are combined with previously studied samples and the characteristics of the full sample of 31 sources are studied; the full sample includes sources with redshifts between 0.056 and 1.79, and core-hot spot sizes of about 30 to 400 kpc. The velocities are independent of core-hotspot separation, suggesting the rate of growth of a given source is roughly constant over the source lifetime. We combine the rate of growth, width, and pressure of a source to study the beam power, lifetime, energy, and ambient gas density using standard methods previously applied to smaller samples. Typical beam powers are in the range from 1E44 to 1E46 erg/s; we show that this quantity is insensitive to assumptions regarding minimum energy conditions. The beam powers are independent of core-hotspot separation suggesting that the beam power of a given source is roughly constant over the source lifetime. Typical total source lifetimes are found to be about a few E6 to E7 years, and typical total outflow energies (E/c^2) are found to be about 5(E5 - E6) solar masses. Ambient gas densities are found to decrease with increasing core-hotspot distance, but have no redshift dependence. Overall, the results obtained with the sample of 31 sources studied here are consistent with those obtained earlier with smaller samples.
description: Astronomy and Astrophysics, accepted