cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: ÐÐ± Ð¾Ð´Ð½Ð¾Ð¼ Ð¿Ð¾Ð´Ñ Ð¾Ð´Ðµ Ðº Ð¾ÑÐµÐ½ÐºÐµ ÑÐ¸ÑÐºÐ¾Ð², Ð²Ð¾Ð·Ð½Ð¸ÐºÐ°ÑÑÐ¸Ñ Ð¿ÑÐ¸ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¸Ð½Ð²ÐµÑÑÐ¸ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ñ Ð½Ð° Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ð¸ Ð¶ÐµÐ»ÐµÐ·Ð½Ð¾Ð´Ð¾ÑÐ¾Ð¶Ð½Ð¾Ð³Ð¾ ÑÑÐ°Ð½ÑÐ¿Ð¾ÑÑÐ°
title: On an approach to assessing the risks arising from the implementation of the investment program at arailway transport enterprise
Creators: name: ÐÐ¾ÑÐºÐ¸Ð½Ð°, ÐÐ½Ð°ÑÑÐ°ÑÐ¸Ñ
name: "Ð£Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ ÑÐ¸ÑÐºÐ°Ð¼Ð¸: Ð½Ð¾Ð²ÑÐµ Ð²ÑÐ·Ð¾Ð²Ñ, Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ Ð¸ ÑÐµÑÐµÐ½Ð¸Ñ (Ð ÐÐ¡ÐâÐ­â2023)", Ð½Ð°ÑÑÐ½Ð¾-Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ°Ñ ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ñ Ñ Ð·Ð°ÑÑÐ±ÐµÐ¶Ð½ÑÐ¼ ÑÑÐ°ÑÑÐ¸ÐµÐ¼ (2023; Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³)
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2024
Subjects: ÐÐµÐ»ÐµÐ·Ð½Ð¾Ð´Ð¾ÑÐ¾Ð¶Ð½ÑÐ¹ ÑÑÐ°Ð½ÑÐ¿Ð¾ÑÑ
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ÐºÐ¾Ð»Ð¸ÑÐµÑÑÐ²ÐµÐ½Ð½ÑÐ¹ Ð¼ÐµÑÐ¾Ð´ Ð¾ÑÐµÐ½ÐºÐ¸ ÑÐ¸ÑÐºÐ°
risk
risk management
risk assessment
probability
quantitative method of risk assessment

description: Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ° Ð¾Ð¿ÐµÑÐ°ÑÐ¸Ð²Ð½Ð¾Ð¹ Ð¾ÑÐµÐ½ÐºÐ¸ ÑÐ¸ÑÐºÐ¾Ð² Ð½ÐµÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÐºÐ¾Ð¾ÑÐ´Ð¸Ð½Ð°ÑÐ¸Ð¸ Ð¸Ð½Ð²ÐµÑÑÐ¸ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¿ÑÐ¾ÐµÐºÑÐ¾Ð², ÑÐµÐ°Ð»Ð¸Ð·ÑÐµÐ¼ÑÑ Ð² Ð¿ÐµÑÐ¸Ð¼ÐµÑÑÐµ Ð¶ÐµÐ»ÐµÐ·Ð½Ð¾Ð¹ Ð´Ð¾ÑÐ¾Ð³Ð¸. Ð Ð¾ÑÐ½Ð¾Ð²Ñ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ Ð¿Ð¾Ð»Ð¾Ð¶ÐµÐ½ ÐºÐ¾Ð»Ð¸ÑÐµÑÑÐ²ÐµÐ½Ð½ÑÐ¹ Ð¼ÐµÑÐ¾Ð´ Ð¾ÑÐµÐ½ÐºÐ¸ ÑÐ¸ÑÐºÐ¾Ð².
description: The methodology for operational assessment of the risks of inefficiency of coordination of investment projects implemented in the perimeter of the railway is considered. The methodology is based on a quantitative method of risk assessment.
Graphene on Silicon Modulators
Creators: name: Sorianello, V.
name: Contestabile, G.
name: Romagnoli, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Graphene is a 2D material with appealing electronic and optoelectronic properties. It is a zero-bandgap material with valence and conduction bands meeting in a single point (Dirac point) in the momentum space. Its conductivity can be changed by shifting the Fermi level energy via an external electric field. This important property determines broadband and tunable absorption at optical frequencies. Moreover, its conductivity is a complex quantity, i.e. Graphene exhibits both electro-absorption and electro-refraction tunability, and this is an intriguing property for photonic applications. For example, it can be combined as an active material for silicon waveguides to realize efficient detectors, switches and modulators. In this paper, we review our results in the field, focusing on graphene-based optical modulators integrated on Silicon photonic platforms. Results obtained in the fabrication of single- and double-layer capacitive modulators are reported showing intensity and phase modulation, resilience of the generated signals to chromatic dispersion because of proper signal chirp and operation up to 50 Gb/s.
Party competition and campaign knowledge : an analysis of the 1997, 2000 and 2004 Canadian federal elections
Creators: name: Lawlor, Andrea
Publisher: name: University of British Columbia
Year: 2010

description: Election campaigns are often cited as tools of political learning. The intensity and volume of the information disseminated during a campaign is said to "enlighten" voters, allowing them to arrive at their preferred electoral decision. Using the 1997, 2000 and 2004 Canadian Election Studies, this paper uses the enlightenment thesis as a theoretical guide for the analyses of three types of campaign learning: policy learning, identification of party leaders and perceptions of a national party’s chances of winning the entire electoral contest. This paper examines local riding competitiveness as a catalyst for interest and competition’s role as an incentive to learn. The intensity of the competition should reveal the importance of information as it assists voters in making an effective electoral choice. From the perspective of political parties, competitiveness highlights the marginality of a riding encouraging parties to adjust levels of local candidate spending accordingly, the result of which is more information distributed to the electorate. Competitiveness should compound the pre-existing effect of campaign learning by increasing the incentives for the dissemination of information. The study concludes that there is little support for campaign learning, both on its own and as a by-product of competitiveness. There is no general learning trend in the Canadian case. In addition, highly competitive contests do not appear to provide incentive for voters to learn, save in one instance. There is a perceptible link between highly competitive local ridings and a voter’s ability to accurately predict the outcome of the national contest. Also, there is no indication that local candidate spending has any positive effect on knowledge. Strong implications arise about the concept of campaign learning and the campaigning process in general. Campaigns are not enlightening voters about factual information, and competitiveness, which should spark interest, is not providing a strong incentive to learn. These findings should encourage political parties to critically evaluate information dissemination and campaigning strategies in competitive districts.
4881: Corporal Frederick James Callaway
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Corporal Frederick James Callaway, service no 6560, 3rd Battalion Worcestershire Regiment was killed in action on the Somme on 5th August 1916. He was a regular soldier to moved to Worcestershire after his marriage. He is mentioned in the book "Bringing Albert Home". He is buried in Knightsbridge Cemetery, Mesnil-Martinsart, France.
Quantifying Self-Organization with Optimal Predictors
Creators: name: Shalizi, Cosma Rohilla
name: Shalizi, Kristina Lisa
name: Haslinger, Robert
Publisher: name: arXiv
Year: 2004
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Statistics Theory (math.ST)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Despite broad interest in self-organizing systems, there are few quantitative, experimentally-applicable criteria for self-organization. The existing criteria all give counter-intuitive results for important cases. In this Letter, we propose a new criterion, namely an internally-generated increase in the statistical complexity, the amount of information required for optimal prediction of the system's dynamics. We precisely define this complexity for spatially-extended dynamical systems, using the probabilistic ideas of mutual information and minimal sufficient statistics. This leads to a general method for predicting such systems, and a simple algorithm for estimating statistical complexity. The results of applying this algorithm to a class of models of excitable media (cyclic cellular automata) strongly support our proposal.
description: Four pages, two color figures
A JÖVŐ TURISTÁI, AVAGY A KÖRNYEZETI SZEMLÉLETFORMÁLÁS FONTOSSÁGA A KÖZÉPISKOLÁS KOROSZTÁLY KÖRÉBEN
Creators: name: Kovács, Gyöngyi
name: Gyurkó, Ádám
name: Kovács, Gyöngyi
name: Gyurkó, Ádám
Publisher: name: Unknown
Year: 2015
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Teaching/Communication/Extension/Profession
subject: felelős nevelés
subject: etikus turista
subject: oktatás
subject: fenntarthatóság
subject: környezeti szemléletformálás
subject: responsible education
subject: ethical tourism
subject: education
subject: sustainable
subject: environmental awareness

description: A posztmodern turizmus gyakorlatába az elmúlt években elkezdett szervesen beépülni a felelősségteljes gondolkodásmód, az etika, a környezet iránti érzékenység fontossága. A turisztikai szolgáltatók, a közvetítők, az állami és egyéb döntéshozók és maguk az utazók is egyre tudatosabbak akár társadalmi akár környezeti hatásokról, kérdésekről van szó. Az új generációk képviselői, a fiatalok egyre hamarabb indulnak útnak, jóval több információval rendelkeznek az utazás technikai részleteivel, kivitelezésével kapcsolatban, mint az idősebb korosztályok. Felmerül azonban a kérdés, hogy vajon a középiskolás diákok tisztában vannak-e az utazásaik hatásával, tudják-e hogy látogatásuk a természeti környezetre és a meglátogatott desztináció társadalmára is pozitív vagy negatív következménnyel járhat? Ennek a körüljárása és felderítése az elsődleges cél, hiszen a hiányosságok ismeretében az oktatást is könnyebb alakítani. A tanulmány a középiskolás korosztály környezettel kapcsolatos érzékenységét mutatja be, ismerteti a szűk keresztmetszeteket, ahol a diákokkal kapcsolatban levők (pedagógusok, szülők, idősebb ismerősök) segíthetnek az etikus és tudatos szemlélet kialakításában. ----------------------------------------- In the last few years the importance of the responsible way of thinking, the ethic and the sensitivity to the environment has become a significant part of the postmodern turism. The people in the service sector, the agents, the ministers and other decision-makers and the travellers are more and more conscious about the questions of social and environmental effects. The members of the new generation, who are the young, against the elder people have a tendency to travel, have much more information about the technical details of the journey and how to organize it. The following questions can arise: whether the secondary school students know the effects of their travellings; whether they know that their visits can have a positive or negative influence on the environment or the society of the destination. The first purpose is to acquire more information about the topic, since if we know the deficiency and faults of the education, the alteration of it can happen easily. The study shows the secondary school students’ the sensitivity to the environment, reports the narrow cross sections, where the people who are in connection with the students (for example teachers, parents, older acquaintances) can help in creating an ethic and conscious aspect.
Streaming Instabilities in Protoplanetary Disks
Creators: name: Youdin, Andrew N.
name: Goodman, Jeremy
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Interpenetrating streams of solids and gas in a Keplerian disk produce a local, linear instability. The two components mutually interact via aerodynamic drag, which generates radial drift and triggers unstable modes. The secular instability does not require self-gravity, yet it generates growing particle density perturbations that could seed planetesimal formation. Growth rates are slower than dynamical, but faster than radial drift, timescales. Growth rates, like streaming velocities, are maximized for marginal coupling (stopping times comparable dynamical times). Fastest growth occurs when the solid to gas density ratio is order unity and feedback is strongest. Curiously, growth is strongly suppressed when the densities are too nearly equal. The relation between background drift and wave properties is explained by analogy with Howard's semicircle theorem. The three-dimensional, two-fluid equations describe a sixth order (in the complex frequency) dispersion relation. A terminal velocity approximation allows simplification to an approximate cubic dispersion relation. To describe the simplest manifestation of this instability, we ignore complicating (but possibly relevant) factors like vertical stratification, dispersion of particle sizes, turbulence, and self-gravity. We consider applications to planetesimal formation and compare our work to other studies of particle-gas dynamics.
description: 26 pages, 8 figures, submitted to ApJ
Heavy quark expansion in beauty: recent successes and problems
Creators: name: Uraltsev, Nikolai
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The status of the QCD-based heavy quark expansion is briefly reviewed. A good agreement between properly applied theory and new precision data is observed. Critical remarks on certain recent claims from HQET are presented. Recent applications to the exclusive heavy flavor transitions are addressed. The `1/2 > 3/2' problem for the transitions into the charm P-wave states is discussed.
description: 13 pages, LaTeX, five figures. Invited talk at "Continuous Advances in QCD 2004, 13-16 May 2004, Minneapolis, MN USA; to appear in the Proceedings
4852: Italy War Medal
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Artefact from the private collection of Bob Bayliss.
4854: Medallion issued for the sinking of the ship Lusitania
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Artefact from a private collection.
title: Transitional Difficulties in Post-16 Education: Moving from GCSE to A Level studies
Creators: name: Cort, Carol
Publisher: name: The Open University
Year: 2017

description: This research investigated transitional difficulties identified by learners moving from GCSE to A Level studies. A small-scale exploratory case study approach was used drawing on the principles of Grounded Theory. Research was bounded in the sixth form of a secondary school in Cambridgeshire. The sample included 147 participants aged 16-18 years. This was a purposeful sampling method including approximately 61% of the target population. 80 participants completed a questionnaire generating quantitative data, 40 participants completed a further questionnaire generating qualitative data, 19 participants took part in focus group meta-planning activities and discussions and 8 participants took part in individual interviews. My epistemological position takes an integrated approach using positivist and interpretivist perspectives to generate knowledge through the breadth, depth and richness of data collection and analysis. My ontological assumptions for this research are based on critical realism, triangulation and mixed methods approaches. Findings from integrated results using a mixed-methods sequential exploratory design (adapted from Ivankova et al. 2006) identify themes emerging from the data providing a variety of causes of transitional difficulties identified by participants when moving from GCSE to A Level studies. Quantitative results were analysed using Complex Chi Squared non-parametric inferential statistical test. With 40 degrees of freedom and 0.005 level of significance, the critical value of chi squared (from the data) was 284.331 which was greater than the stated value of 66.766 Therefore, the results were significant. This means that the data gathered from the questionnaires does show that participants have experienced transitional difficulties when moving from GSCE to A Level studies. Qualitative data was analysed using a constant comparative method to identify themes emerging from the data. Responses were noted, compared, coded and categorised in a systematic way, compared further and put into responding groups based on the emerging themes. Results found there are both internal and external factors that contribute to transitional difficulties for learners moving from GCSE to A Level studies. These highlight issues that can inform policy and practice to improve transition and educational outcome and identify areas for further research.
Current Observational Constraints on Cosmic Doomsday
Creators: name: Wang, Yun
name: Kratochvil, Jan Michael
name: Linde, Andrei
name: Shmakova, Marina
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a broad class of dark energy models, the universe may collapse within a finite time t_c. Here we study a representative model of dark energy with a linear potential, V(ϕ)=V_0(1+αϕ). This model is the simplest doomsday model, in which the universe collapses rather quickly after it stops expanding. Observational data from type Ia supernovae (SNe Ia), cosmic microwave background anisotropy (CMB), and large scale structure (LSS) are complementary in constraining dark energy models. Using the new SN Ia data (Riess sample), the CMB data from WMAP, and the LSS data from 2dF, we find that the collapse time of the universe is t_c > 42 (24) gigayears from today at 68% (95%) confidence.
description: 19 pages, 6 figures, comments added; the version to appear in JCAP
Probing solar flare accelerated electron distributions with prospective X-ray polarimetry missions
Creators: name: Jeffrey, Natasha L. S.
name: Saint-Hilaire, Pascal
name: Kontar, Eduard P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Solar flare electron acceleration is an extremely efficient process, but the method of acceleration is not well constrained. Two of the essential diagnostics: electron anisotropy (velocity angle to the guiding magnetic field) and the high energy cutoff (highest energy electrons produced by the acceleration conditions: mechanism, spatial extent, time), are important quantities that can help to constrain electron acceleration at the Sun but both are poorly determined. Here, using electron and X-ray transport simulations that account for both collisional and non-collisional transport processes such as turbulent scattering, and X-ray albedo, we show that X-ray polarization can be used to constrain the anisotropy of the accelerated electron distribution and the most energetic accelerated electrons together. Moreover, we show that prospective missions, e.g. CubeSat missions without imaging information, can be used alongside such simulations to determine these parameters. We conclude that a fuller understanding of flare acceleration processes will come from missions capable of both X-ray flux and polarization spectral measurements together. Although imaging polarimetry is highly desired, we demonstrate that spectro-polarimeters without imaging can also provide strong constraints on electron anisotropy and the high energy cutoff.
description: Accepted for publication in Astronomy & Astrophysics August 2020
Tramp Novae Between Galaxies in the Fornax Cluster: Tracers of Intracluster Light
Creators: name: Neill, James D.
name: Shara, Michael M.
name: Oegerle, William R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the results of a survey for novae in and between the galaxies of the Fornax cluster. Our survey provides strong evidence that intracluster novae exist and that they provide a useful, independent measure of the intracluster light in Fornax. We discovered six strong nova candidates in six distinct epochs spanning eleven years from 1993 to 2004. The data were taken with the 4m and the 1.5m telescopes at CTIO. The spatial distribution of the nova candidates is consistent with $\sim$16-41% of the total light in the cluster being in the intracluster light, based on the ratio of the number of novae we discovered in intracluster space over the total number of novae discovered plus a simple completeness correction factor. This estimate is consistent with independent measures of intracluster light in Fornax and Virgo using intracluster planetary nebulae. The accuracy of the intracluster light measurement improves with each survey epoch as more novae are discovered.
description: 30 pages, 10 figures, accepted for publication in the Astrophysical Journal (Sep 9, 2004). Version 2: Added references. Full resolution versions of figures 1-7 and 10 can be found at http://astrowww.phys.uvic.ca/~neill/fnx/
Mode-locked ultrashort pulses from an 8 $μ$m wavelength semiconductor laser
Creators: name: Hillbrand, Johannes
name: Opacak, Nikola
name: Piccardo, Marco
name: Schneider, Harald
name: Strasser, Gottfried
name: Capasso, Federico
name: Schwarz, Benedikt
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Quantum cascade lasers (QCL) have revolutionized the generation of mid-infrared light. Yet, the ultrafast carrier transport in mid-infrared QCLs has so far constituted a seemingly insurmountable obstacle for the formation of ultrashort light pulses. Here, we demonstrate that careful quantum design of the gain medium and control over the intermode beat synchronization enable transform-limited picosecond pulses from QCL frequency combs. Both an interferometric radio-frequency technique and second-order autocorrelation shed light on the pulse dynamics and confirm that mode-locked operation is achieved from threshold to rollover current. Being electrically pumped and compact, mode-locked QCLs pave the way towards monolithically integrated non-linear photonics in the molecular fingerprint region beyond 6 $μ$m wavelength.
Additional file 5 of Identification of RAG-like transposons in protostomes suggests their ancient bilaterian origin
Creators: name: Martin, Eliza C.
name: Vicari, Célia
name: Tsakou-Ngouafo, Louis
name: Pontarotti, Pierre
name: Petrescu, Andrei J.
name: Schatz, David G.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Figure S5. (a) Conservation of functional relevant amino acids in RAG1 and RAG1L. The alignments depict the extensive conservation of some of the most important and well characterized amino acids in RAG1/RAG1L proteins (numbers given for BbeRAG1L): from left to right, catalytic carboxylates (D701, E764, D818, and E1063), residues implicated in controlling coupled versus uncoupled cleavage (A1064 and V751), a residue that facilitates transposition (M949), a histidine component of the active site (H894), and zinc-coordinating residues (C830, C833, H1035 and H1040). Residue E649 in mouse RAG1 contributes to synchronous, or “coupled”, cleavage by RAG at two RSSs, in part through its ability to form a hydrogen bond with S963 [22, 31]. The BbeRAG1L/2 L complex (BbeRAGL) exhibits less propensity for coupled cleavage in part because E649 has been replaced with V751 [22]. Valine is highly conserved at this position in RAG1L proteins from protostomes, suggesting that DNA cleavage by these proteins, if it occurs, would more likely resemble the uncoupled cleavage activity of BbeRAGL. Mutation of the charged residue R848 in mouse RAG1 to the hydrophobic residue methionine, as is found in BbeRAG1L, strongly activates the transposition activity of RAG [22]. Virtually all invertebrate RAG1L proteins, including those from protostomes, have a hydrophobic amino acid, most often methionine, at this position. (b) RAG2/RAG2L PHD domain alignment. The pattern of conserved cysteine and histidine residues (marked with X) are different between invertebrate RAG2L (top) and jawed vertebrate RAG2 (bottom). Variability logo (top) shows relative entropy (bits) calculated on the invertebrate alignment group. Amino acid color code as in Fig. 5.
Explorations of the infinite regions of space-time
Creators: name: Beyer, Florian
name: Frauendiener, Jörg
name: Hennig, Jörg
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: An important concept in Physics is the notion of an isolated system. It is used in many different areas to describe the properties of a physical system which has been isolated from its environment. The interaction with the `outside' is then usually reduced to a scattering process, in which incoming radiation interacts with the system, which in turn emits outgoing radiation. In Einstein's theory of gravitation isolated systems are modeled as asymptotically flat space-times. They provide the appropriate paradigm for the study of gravitational waves and their interaction with a material system or even only with themselves. In view of the emerging era of gravitational wave astronomy, in which gravitational wave signals from many different astrophysical sources are detected and interpreted, it is necessary to have a foundation for the theoretical and numerical treatments of these signals. Furthermore, from a purely mathematical point of view, it is important to have a full understanding of the implications of imposing the condition of asymptotic flatness onto solutions of the Einstein equations. While it is known that there exists a large class of asymptotically flat solutions of Einstein's equations, it is not known what the necessary and sufficient conditions at infinity are that have to be imposed on initial data so that they evolve into regular asymptotically flat space-times. The crux lies in the region near space-like infinity $i^0$ where incoming and outgoing radiation `meet'. In this paper we review the current knowledge and some of the analytical and numerical work that has gone into the attempt to understand the structure of asymptotically flat space-times near space-like and null-infinity.
description: final version, consistent with published article
Is It Really Naked? On Cosmic Censorship in String Theory
Creators: name: Frolov, Andrei V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the possibility of cosmic censorship violation in string theory using a characteristic double-null code, which penetrates horizons and is capable of resolving the spacetime all the way to the singularity. We perform high-resolution numerical simulations of the evolution of negative mass initial scalar field profiles, which were argued to provide a counterexample to cosmic censorship conjecture for AdS-asymptotic spacetimes in five-dimensional supergravity. In no instances formation of naked singularity is seen. Instead, numerical evidence indicates that black holes form in the collapse. Our results are consistent with earlier numerical studies, and explicitly show where the `no black hole' argument breaks.
description: 8 pages, 5 figures, 1 table; REVTeX 4.0
Additional file 4 of Identification of RAG-like transposons in protostomes suggests their ancient bilaterian origin
Creators: name: Martin, Eliza C.
name: Vicari, Célia
name: Tsakou-Ngouafo, Louis
name: Pontarotti, Pierre
name: Petrescu, Andrei J.
name: Schatz, David G.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Figure S4. Complementary RAG1L phylogenetic analyses using PhyML implementation [49, 50]. Trees are displayed as in Fig. 2b except that branches with bootstrap numbers below 50% were not collapsed together. Different substitution models were used as follows: (a) LG + G + I + F model selected via AIC minimization (b) LG + G + I model selected via BIC minimization (c) WAG substitution model.
Curing the Ills of Higgsless Models: the S Parameter and Unitarity
Creators: name: Cacciapaglia, Giacomo
name: Csaki, Csaba
name: Grojean, Christophe
name: Terning, John
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider various constraints on Higgsless models of electroweak symmetry breaking based on a bulk SU(2)_L x SU(2)_R x U(1)_{B-L} gauge group in warped space. First we show that the S parameter which is positive if fermions are localized on the Planck brane can be lowered (or made vanishing) by changing the localization of the light fermions. If the wave function of the light fermions is almost flat their coupling to the gauge boson KK modes will be close to vanishing, and therefore contributions to the S parameter will be suppressed. At the same time the experimental bounds on such Z' and W' gauge bosons become very weak, and their masses can be lowered to make sure that perturbative unitarity is not violated in this theory before reaching energies of several TeV. The biggest difficulty of these models is to incorporate a heavy top quark mass without violating any of the experimental bounds on bottom quark gauge couplings. In the simplest models of fermion masses a sufficiently heavy top quark also implies an unacceptably large correction to the Zb\bar{b} vertex and a large splitting between the KK modes of the top and bottom quarks, yielding large loop corrections to the T-parameter. We present possible directions for model building where perhaps these constraints could be obeyed as well.
description: 21 pages, LaTeX, 5 figures. References and acknowledgements added
The effect of magnetic fields on properties of the circumgalactic medium
Creators: name: van de Voort, Freeke
name: Bieri, Rebekka
name: Pakmor, Rüdiger
name: Gómez, Facundo A.
name: Grand, Robert J. J.
name: Marinacci, Federico
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the effect of magnetic fields on a simulated galaxy and its surrounding gaseous halo, or circumgalactic medium (CGM), within cosmological 'zoom-in' simulations of a Milky Way-mass galaxy as part of the 'Simulating the Universe with Refined Galaxy Environments' (SURGE) project. We use three different galaxy formation models, each with and without magnetic fields, and include additional spatial refinement in the CGM to improve its resolution. The central galaxy's star formation rate and stellar mass are not strongly affected by the presence of magnetic fields, but the galaxy is more disc-dominated and its central black hole is more massive when $B>0$. The physical properties of the CGM change significantly. With magnetic fields, the circumgalactic gas flows are slower, the atomic hydrogen-dominated extended discs around the galaxy are more massive and the densities in the inner CGM are therefore higher, the temperatures in the outer CGM are higher, and the pressure in the halo is higher and smoother. The total gas fraction and metal mass fraction in the halo are also higher when magnetic fields are included, because less gas escapes the halo. Additionally, we find that the CGM properties depend on azimuthal angle and that magnetic fields reduce the scatter in radial velocity, whilst enhancing the scatter in metallicity at fixed azimuthal angle. The metals are thus less well-mixed throughout the halo, resulting in more metal-poor halo gas. These results together show that magnetic fields in the CGM change the flow of gas in galaxy haloes, making it more difficult for metal-rich outflows to mix with the metal-poor CGM and to escape the halo, and therefore should be included in simulations of galaxy formation.
description: Accepted for publication in MNRAS. Revised version: added Appendix B (on haloes with different initial conditions) and Appendix C (showing the full probability density function for CGM properties at ~100 kpc distance) and updated figures and minor textual changes
title: Lettres de Jacques Leibowitch au Docteur G. Pialoux (Hôpital Pasteur)
Creators: name: Leibowitch, Jacques
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Source: http://www.calames.abes.fr/pub/ms/Calames-2019311113191729
description: created: start=1993-01-27;end=1995-05-15
4857: St John Ambulance Brigade Hospital, Etaples, France
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Books and photographs from a private collection.
title: Convergence analysis of the Longstaff-Schwartz algorithm
Creators: name: Gudat, Emanuel
Publisher: name: TU Wien
Year: 2015
Subjects: subject: Option pricing
subject: American option
subject: Longstaff-Schwartz algorithm
subject: statistical learning

description: We analyse convergence properties of the Longstaff-Schwartz algorithm, a routine used in pricing American options. After a description and a numerical example of the algorithm, we will present an introduction to statistical learning theory and give a rigorous proof of Pollard's inequality. Having established the Vapnik-Chervonenkis dimension, we pass on to prove an inequality about the error that occurs within one step of the LS-Algorithm. We use all this to establish convergence theorems, even in settings where the approximation spaces are not convex, closed or linear, as long as they are uniformly bounded and have a finite Vapnik-Chervonenkis dimension. The rest of the thesis deals with applications of the convergence theorems. We are going to use polynomial approximations architectures and artificial neural networks.
Multifilamentary, in-situ Route, Cu-stabilized MgB2 Strands
Creators: name: Sumption, M. D.
name: Bhatia, M.
name: Wu, X.
name: Rindfleisch, M.
name: Tomsic, M.
name: Collings, E. W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Transport critical current densities and n-values were measured at 4.2 K in fields up to 15 T on 7, 19, and 37-stack multifilamentary MgB2 strands made using an in-situ route. Some strands included SiC additions (particle size 30 nm), while in others Mg-rich compositions were used. Two basic multifilamentary variants were measured, the first had Nb filamentary barriers, the second had Fe filamentary barriers. All samples incorporated stabilizer in the form of Cu 101. Simple, one-step heat treatments were used, with temperatures ranging from 700-800C, and times from 10-30 minutes. Transport critical current densities of 1.75 x 105 A/cm2 were seen at 4.2 K and 5 T in 37 stack strands.
description: 10 pages, 3 figs, 2 tables
4842: Birmingham Peace Celebration Medal 1919
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Artefact from a private collection.
4846: France War Medal and Croix de Guerre
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Artefacts from a private collection.
Additional file 2 of Identification of RAG-like transposons in protostomes suggests their ancient bilaterian origin
Creators: name: Martin, Eliza C.
name: Vicari, Célia
name: Tsakou-Ngouafo, Louis
name: Pontarotti, Pierre
name: Petrescu, Andrei J.
name: Schatz, David G.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Figure S2. (a) Alignments of four groups of protostome RAGL transposon TIRs. Sequences of 5′-TIR and 3′-TIR (reverse complement) pairs are aligned from four groups: C. virginica (I), P. imbricata (II and III) and nemertean N. geniculatus (IV). Despite both being mollusks, the C. virginica and P. imbricata TIR sequences are very dissimilar both in sequence and length. None of the 4 groups contain an RSS nonamer-like region, however, the C. virginica 5′ and 3′ TIRs exhibit a length difference of 11 bp, reminiscent of the 11 bp difference in lengths of the spacers in the 12RSS and 23RSS that underlies the 12/23 rule of V(D) J recombination [3, 6]. Similarity color code: dark grey, fully conserved; light grey, partially conserved; white, no similarity. (b) Potential RAG-derived non-autonomous transposable elements in protostomes and deuterostomes. Summary of the potential RAG-derived non-autonomous elements identified in WGS database in organisms where the RAGL transposon was detected. The configuration of these elements, as well as TSD sequences (if present) are indicated. The e-values shown derive from blastn searches of the WGS project of each organism using previously detected RAGL TIR-containing margins (200 bp) as queries.
title: ÐÑÐµÐ½ÐºÐ° Ð²ÐµÑÐ¾ÑÑÐ½Ð¾ÑÑÐ¸ Ð²Ð¾Ð·Ð½Ð¸ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ñ ÑÐ¸ÑÐºÐ° Ð½ÐµÐ²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ ÐºÐ¾Ð½ÑÑÐ°ÐºÑÐ° Ð² ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ðµ
title: Assessment of the probability of occurrence of the risk of non-fulfillment of the state contract in construction
Creators: name: Ð¦Ð²ÐµÑÐºÐ¾Ð², Ð®ÑÐ¸Ð¹
name: "Ð£Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ ÑÐ¸ÑÐºÐ°Ð¼Ð¸: Ð½Ð¾Ð²ÑÐµ Ð²ÑÐ·Ð¾Ð²Ñ, Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ Ð¸ ÑÐµÑÐµÐ½Ð¸Ñ (Ð ÐÐ¡ÐâÐ­â2023)", Ð½Ð°ÑÑÐ½Ð¾-Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ°Ñ ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ñ Ñ Ð·Ð°ÑÑÐ±ÐµÐ¶Ð½ÑÐ¼ ÑÑÐ°ÑÑÐ¸ÐµÐ¼ (2023; Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³)
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2024
Subjects: Ð¡ÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð¾
ÐÐ°ÑÐ¸Ð½Ð½Ð¾Ðµ Ð¾Ð±ÑÑÐµÐ½Ð¸Ðµ
Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½ÑÐ¹ ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÐ½ÑÐ¹ Ð·Ð°ÐºÐ°Ð·
Ð¿Ð¾Ð´ÑÑÐ´Ð½ÑÐµ ÑÐ°Ð±Ð¾ÑÑ
Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½ÑÐµ Ð·Ð°ÐºÑÐ¿ÐºÐ¸
ÑÐ¾ÑÐ³Ð¸
state construction order
contract works
public procurement
bidding

description: Ð ÑÑÐ°ÑÑÐµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ñ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÐµÐ¹ ÑÑÐ¾Ð²Ð½Ñ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½ÑÑ ÐºÐ¾Ð½ÑÑÐ°ÐºÑÐ¾Ð² Ð² ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ðµ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ ÑÐ¸ÑÐºÐ° Ð½ÐµÐ²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ ÐºÐ¾Ð½ÑÑÐ°ÐºÑÐ¾Ð² Ð¿ÑÐ¸ Ð·Ð°Ð´Ð°Ð½Ð½ÑÑ Ð·Ð½Ð°ÑÐµÐ½Ð¸ÑÑ Ð¿ÑÐ¾ÑÐµÐ½ÑÐ° ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ñ ÐÐÐ¦Ð Ð¸ ÐºÐ¾Ð»Ð¸ÑÐµÑÑÐ²Ð° ÑÑÐ°ÑÑÐ½Ð¸ÐºÐ¾Ð² Ð·Ð°ÐºÑÐ¿Ð¾ÑÐ½ÑÑ Ð¿ÑÐ¾ÑÐµÐ´ÑÑ.
description: The article presents the results of a study on the analysis of indicators of the level of fulfillment of government contracts in construction, as well as the application of a methodology for determining the risk of nonfulfillment of contracts at specified values of the percentage of decrease in NMCC and the number of participants in procurement procedures.
Effect of segregation on inequality in kinetic models of wealth exchange
Creators: name: Fernandes, Lennart
name: Tempere, Jacques
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: General Economics (econ.GN)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: Empirical distributions of wealth and income can be reproduced using simplified agent-based models of economic interactions, analogous to microscopic collisions of gas particles. Building upon these models of freely interacting agents, we explore the effect of a segregated economic network in which interactions are restricted to those between agents of similar wealth. Agents on a 2D lattice undergo kinetic exchanges with their nearest neighbours, while continuously switching places to minimize local wealth differences. A spatial concentration of wealth leads to a steady state with increased global inequality and a magnified distinction between local and global measures of combatting poverty. Individual saving propensity proves ineffective in the segregated economy, while redistributive taxation transcends the spatial inhomogeneity and greatly reduces inequality. Adding fluctuations to the segregation dynamics, we observe a sharp phase transition to lower inequality at a critical temperature, accompanied by a sudden change in the distribution of the wealthy elite.
Designer Cosmology
Creators: name: Bassett, Bruce A.
name: Parkinson, David
name: Nichol, Robert C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We highlight the flexibility of the IPSO experiment-design framework by contrasting its application to CMB, weak lensing and redshift surveys. We illustrate the latter with a 10 parameter MCMC D-optimisation of a dark energy redshift survey. When averaged over a standard dark energy model space the resulting optimal survey typically has only one or two redshift bins, located at z<2. By exploiting optimisation we show how the statistical power of such surveys is significantly enhanced. Experiment design is aided by the richness of the figure of merit landscape which means one can impose secondary optimisation criteria at little cost. For example, one may choose either to maximally test a single model (such as ΛCDM) or to get the most general model-independent constraints possible (e.g. on a whole space of dark energy models). Such freedom points to a future where cosmological experiments become increasingly specialised and optimisation increasingly important.
description: 5 pages, 5 colour figures, ApJ Style
4850: First World War Medals and Badges of Germany and her Allies
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Artefacts from a private collection.
Re-defining ’woman’ in Canada : gender and social planning in support services for immigrant women
Creators: name: Mahaffey, Rebekah Patricia Trowe
Publisher: name: University of British Columbia
Year: 2010

description: In Canada’s increasingly poly-ethnic society, questions of how to define and build an inclusive society are becoming particularly important. Within social planning one of the key areas of debate is how to construct and provide appropriate and responsive social/economic support services for the immigrant community, especially for visible minority immigrant women. In this context, what is inclusion? How and where does inclusion matter? The differing roles that gender considerations play in the personal experience of immigration are too seldom recognized within immigrant services policy and program planning. It is simply not the same to move to Canada as a woman as it is for a man. Particularized instances of gender difference can influence a whole range of experiences for female immigrants, including the accessibility of support services. Chapter 1 of this study discusses how Canadian immigrant women are currently accessing existing social services and outlines some of the contemporary discourse surrounding Canadian multiculturalism. Chapter 2 details the narrative-oriented methodological framework, and emergent method(s) of analysis that were utilized in conducting this research. This chapter also presents pertinent details regarding the research participants as well as the immigrant serving agency along with its ethno-specific service partner that was examined as a case study. Chapter 3 narrates some of the current experiences of ’place’ for immigrant women in Canada, and discusses contemporary practices of how existing immigrant service organizations plan social programs for immigrant women. Chapter 4 presents the implications and considerations for social planning practice, particularly with non-Canadian born women, that emerged out of the field-work conducted for this study. The research then concludes with a narrative overview of my perspectives on this project, as well as personal and practice-oriented lessons learned.
Formation of light antinuclei and "dense gas" stage in heavy ion collisions
Creators: name: Shushpanov, I. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The antideuteron and antihelium-3 production rates at high-energy heavy ion collisions are calculated in the framework of fusion mechanism when participating particles are moving in the mean field of other fireball constituents. It is shown that coalescence parameters can be found from the requirement of balance between created and disintegrated antinuclei. The explicit formulae for coalescence parameters are presented and compared with experimental data.
description: To be published in "Proceedings of the 18th International Nuclear Physics Divisional Conference of the EPS (NPDC18), 2004."
Additional file 3 of Identification of RAG-like transposons in protostomes suggests their ancient bilaterian origin
Creators: name: Martin, Eliza C.
name: Vicari, Célia
name: Tsakou-Ngouafo, Louis
name: Pontarotti, Pierre
name: Petrescu, Andrei J.
name: Schatz, David G.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Figure S3. Additional phylogenetic analyses. (a-d) Detailed phylogenetic trees of RAG1 and RAG1L protein sequences including several from: (a) Cephalochordata - indicated with blue shading., (b) Echinodermata - blue shading, (c) Mollusca - orange shading and (d) including one from cnidaria - green shading (e) RAG2/RAG2L phylogenetic trees. Trees were built using Maximum Likelihood and WAG substitution model as implemented in MEGA X [27] and are displayed as in Fig. 2b except that branches with bootstrap numbers below 50% were not collapsed together. Trees were built from a variable number of significant positions of their alignment: (a) 289, (b) 398, (c) 354, and (d) 469 respectively .