cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Future of the Gaia Universe
Creators: name: Brown, Anthony G.A.
Publisher: name: Zenodo
Year: 2019
Subjects: Gaia
Gaia EDR3
Gaia DR3

description: In this presentation I provide a look ahead at the next Gaia data releases, Gaia EDR3, scheduled for Q3 2020, and Gaia DR3, scheduled for the second half of 2021. I describe the data products that can be expected, preliminary source numbers, and emphasize the new elements in both releases.

The second part of the talk looks ahead further at Gaia DR4 and the extended Gaia mission.
Fluctuations and scaling in creep deformation
Creators: name: Rosti, Jari
name: Koivisto, Juha
name: Laurson, Lasse
name: Alava, Mikko J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The spatial fluctuations of deformation are studied in creep in the Andrade's power-law and the logarithmic phases, using paper samples. Measurements by the Digital Image Correlation technique show that the relative strength of the strain rate fluctuations increases with time, in both creep regimes. In the Andrade creep phase characterized by a power law decay of the strain rate $ε_t \sim t^{-θ}$, with $θ\approx 0.7$, the fluctuations obey $Δε_t \sim t^{-γ}$, with $γ\approx 0.5$. The local deformation follows a data collapse appropriate for an absorbing state/depinning transition. Similar behavior is found in a crystal plasticity model, with a jamming or yielding phase transition.
Geometric descriptions for the polarization for nonparaxial optical fields: a tutorial
Creators: name: Alonso, Miguel A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: This tutorial provides an overview of the local description of polarization for nonparaxial light, for which all Cartesian components of the electric field are significant. The polarization of light at each point is characterized by a $3$ component vector in the case of full polarization or by a $3\times3$ polarization matrix for partial polarization. Standard concepts for paraxial polarization like the degree of polarization, the Stokes parameters and the Poincaré sphere then have generalizations for nonparaxial light that are either not unique or not trivial. This work aims to clarify some of these discrepancies, present some new concepts, and provide a framework that highlights the similarities and differences with the description for the paraxial regimes. Particular emphasis is placed on geometric interpretations.
description: 72 pages, 19 figures
La scuola che è venuta: analisi sociopolitica nel dibattito per l'introduzione della scuola media unica in Ticino
Creators: name: Lovisetto, Alex
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2019
Subjects: scuola media unica
Ticino
storia politica e sociale
democratizzazione
espansione educativa
differenziazione

description: La presente tesi di master riguarda l’analisi del dibattito avvenuto negli anni Settanta inerente l’introduzione della scuola media unica in Ticino, in particolare gli argomenti riguardati temi sociopolitici. Il lavoro è stato realizzato grazie all’analisi tematica del contenuto e sono state selezionate quali fonti i principali quotidiani ticinesi e i quotidiani dei partiti rappresentati nel Consiglio di Stato tra il 1970 e il 1974. La ricerca, oltre a contestualizzare le pubblicazioni giornalistiche, confronta le differenti visioni politiche riguardo ai temi dell’espansione educativa, della bipartizione del ciclo di orientamento e della democratizzazione scolastica. L’analisi ha evidenziato una forte presenza di elementi ideologici e ha portato a definire che le proposte di riforma avanzate dai partiti politici erano principalmente orientate verso il paradigma funzionalista, riferente all’opportunità d’accesso degli allievi al sistema educativo, e quello sostanziale, che prevede la parificazione delle opportunità di riuscita degli allievi all’interno della scuola. Uno sviluppo a questa ricerca è l’analisi dell’evoluzione dei discorsi negli anni successivi fino ai giorni nostri e la valutazione del contenuto. Relatore: Wolfgang Sahlfeld. Materia: Storia e educazione civica, Geografia.
Testing collapse models with Bose-Einstein-Condensate interferometry
Creators: name: Schrinski, Björn
name: Haslinger, Philipp
name: Schmiedmayer, Jörg
name: Hornberger, Klaus
name: Nimmrichter, Stefan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The model of continuous spontaneous localization (CSL) is the most prominent consistent modification of quantum mechanics predicting an objective quantum-to-classical transition. Here we show that precision interferometry with Bose-Einstein condensed atoms can serve to lower the current empirical bound on the localization rate parameter by several orders of magnitude. This works by focusing on the atom count distributions rather than just mean population imbalances in the interferometric signal of squeezed BECs, without the need for highly entangled GHZ-like states. In fact, the interplay between CSL-induced diffusion and dispersive atom-atom interactions results in an amplified sensitivity of the condensate to CSL. We discuss experimentally realistic measurement schemes utilizing state-of-the-art experimental techniques to test new regions of parameter space and, pushed to the limit, to probe and potentially rule out large relevant parameter regimes of CSL.
description: 13 pages, 5 figures, 1 table
Continued fraction solution of Krein's inverse problem
Creators: name: Tourigny, Yves
Publisher: name: arXiv
Year: 2011
Subjects: subject: Spectral Theory (math.SP)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 34A55, 65L09

description: The spectral data of a vibrating string are encoded in its so-called characteristic function. We consider the problem of recovering the distribution of mass along the string from its characteristic function. It is well-known that Stieltjes' continued fraction provides a solution of this inverse problem in the particular case where the distribution of mass is purely discrete. We show how to adapt Stieltjes' method to solve the inverse problem for a related class of strings. An application to the excursion theory of diffusion processes is presented.
description: 18 pages, 2 figures
A Milnor-Wood inequality for complex hyperbolic lattices in quaternionic space
Creators: name: Garcia-Prada, Oscar
name: Toledo, Domingo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We prove a Milnor-Wood inequality for representations of the fundamental group of a compact complex hyperbolic manifold in the group of isometries of quaternionic hyperbolic space. Of special interest is the case of equality, and its application to rigidity. We show that equality can only be achieved for totally geodesic representations, thereby establishing a global rigidity theorem for totally geodesic representations.
description: 13 pages
Riassunto delle lezioni di Pedagogia date dal Prof. Avanzini A. Direttore del Corso di Metodo tenuto in Locarno nel 1870
Creators: name: Lafranchi, Maurizio
Publisher: name: [S.l.]
Year: 1870
Subjects: Calligraphy
Italian

description: per opera dell'allievo Lafranchi Maurizio
CoPhy: A Scalable, Portable, and Interactive Index Advisor for Large Workloads
Creators: name: Dash, Debabrata
name: Polyzotis, Neoklis
name: Ailamaki, Anastasia
Publisher: name: arXiv
Year: 2011
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Index tuning, i.e., selecting the indexes appropriate for a workload, is a crucial problem in database system tuning. In this paper, we solve index tuning for large problem instances that are common in practice, e.g., thousands of queries in the workload, thousands of candidate indexes and several hard and soft constraints. Our work is the first to reveal that the index tuning problem has a well structured space of solutions, and this space can be explored efficiently with well known techniques from linear optimization. Experimental results demonstrate that our approach outperforms state-of-the-art commercial and research techniques by a significant margin (up to an order of magnitude).
description: VLDB2011
Forbidden subgraphs of power graphs
Creators: name: Manna, Pallabi
name: Cameron, Peter J.
name: Mehatari, Ranjit
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C25

description: The undirected power graph (or simply power graph) of a group $G$, denoted by $P(G)$, is a graph whose vertices are the elements of the group $G$, in which two vertices $u$ and $v$ are connected by an edge between if and only if either $u=v^i$ or $v=u^j$ for some $i$, $j$. A number of important graph classes, including perfect graphs, cographs, chordal graphs, split graphs, and threshold graphs, can be defined either structurally or in terms of forbidden induced subgraphs. We examine each of these five classes and attempt to determine for which groups $G$ the power graph $P(G)$ lies in the class under consideration. We give complete results in the case of nilpotent groups, and partial results in greater generality. In particular, the power graph is always perfect; and we determine completely the groups whose power graph is a threshold or split graph (the answer is the same for both classes). We give a number of open problems.
description: 18 pages, 1 figure
Lipschitz Continuous Ordinary Differential Equations are Polynomial-Space Complete
Creators: name: Kawamura, Akitoshi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computational Complexity (cs.CC)
subject: Numerical Analysis (math.NA)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.2.1; F.2.2; G.1.7
subject: 03F60, 68Q17, 65Y20, 65L05, 03D15

description: In answer to Ko's question raised in 1983, we show that an initial value problem given by a polynomial-time computable, Lipschitz continuous function can have a polynomial-space complete solution. The key insight is simple: the Lipschitz condition means that the feedback in the differential equation is weak. We define a class of polynomial-space computation tableaux with equally weak feedback, and show that they are still polynomial-space complete. The same technique also settles Ko's two later questions on Volterra integral equations.
description: 22 pages, 9 figures; preliminary version presented at CCC 2009
Collins effect in semi-inclusive deep inelastic scattering process with a $^3$He target
Creators: name: She, Jun
name: Ma, Bo-Qiang
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We re-examine our previous calculation on the Collins effect in semi-inclusive deeply inelastic scattering (SIDIS) process with a $^3$He target, and find that our previous treatment on the dilution factors may cause the results larger than the realistic situation. We thus modify our calculation in an improved treatment with an updated prediction on the $\sin(ϕ_h+ϕ_S)$ asymmetry for the JLab 12 GeV under the transverse momentum dependent (TMD) factorization framework. Meanwhile, we also provide the prediction of such asymmetry for the JLab 6 GeV and the prediction of the $\sin(3ϕ_h-ϕ_S)$ asymmetry related to pretzelosity.
description: 10 pages, 4 figures, figures 3 and 4 replaced as Erratum
title: Ð­Ð»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ°Ñ ÑÐ°ÑÑÑ ÐÐ­Ð¡ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ 9*333 ÐÐÑ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Electrical part of hydroelectric power station with a capacity of 9 * 333 MW
Creators: name: ÐÑÑÑÐ¾Ð´Ð¶Ð°ÐµÐ², ÐÐ°Ð±ÑÑÑÑÐ¶Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾Ñ
ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾Ñ
ÐÐ­Ð¡
ÑÐµÐ½Ð¾Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ðµ
ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ðµ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ðµ
ÑÐµÐ»ÐµÐ¹Ð½Ð°Ñ Ð·Ð°ÑÐ¸ÑÐ°
generator
transformer
HPS
price
short ciircuit
relay protection

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÑÐµÑ ÑÐ¾Ð±Ð¾Ð¹ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÑÐ½ÐºÑÐ¸Ð¾Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ°ÑÑÐ¸ Ð³Ð¸Ð´ÑÐ¾ÑÐ»ÐµÐºÑÑÐ¾ÑÑÐ°Ð½ÑÐ¸Ð¸. ÐÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ Ð²ÑÐ±Ð¾Ñ Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð¾Ð¹ Ð³Ð»Ð°Ð²Ð½Ð¾Ð¹ Ð¸ ÑÑÑÑÐºÑÑÑÐ½Ð¾Ð¹ ÑÑÐµÐ¼. ÐÑÐ» Ð¾ÑÑÑÐµÑÑÐ²Ð»ÐµÐ½ Ð¿Ð¾Ð´Ð±Ð¾Ñ Ð¾ÑÐ½Ð¾Ð²Ð½Ð¾Ð³Ð¾ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ, Ð´Ð»Ñ ÐºÐ¾ÑÐ¾ÑÐ¾Ð³Ð¾ Ð±ÑÐ» ÑÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½ Ð±ÑÐ´Ð¶ÐµÑ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð±ÑÐ»Ð¸ ÑÐ´ÐµÐ»Ð°Ð½Ñ Ð²ÑÑÐ¸ÑÐ»ÐµÐ½Ð¸Ñ Ð²Ð½Ð¾ÑÑÑÐ¸Ðµ Ð¿Ð¾Ð¿ÑÐ°Ð²ÐºÐ¸ Ð½Ð° Ð³Ð¾Ð´Ð¾Ð²ÑÐµ Ð¸Ð·Ð´ÐµÑÐ¶ÐºÐ¸.
description: This work is a comprehensive analysis of the functioning and design of the electrical part of a hydroelectric power station. A selection of the optimal main and structural schemes was made. A selection of the main electrical equipment was made, for which a budget was formed, and calculations were made that corrected the annual costs.
Calibrating Local Volatility Models with Stochastic Drift and Diffusion
Creators: name: Ogetbil, Orcan
name: Ganesan, Narayan
name: Hientzsch, Bernhard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Finance (q-fin.MF)
subject: Computational Finance (q-fin.CP)
subject: FOS: Economics and business

description: We propose Monte Carlo calibration algorithms for three models: local volatility with stochastic interest rates, stochastic local volatility with deterministic interest rates, and finally stochastic local volatility with stochastic interest rates. For each model, we include detailed derivations of the corresponding SDE systems, and list the required input data and steps for calibration. We give conditions under which a local volatility can exist given European option prices, stochastic interest rate model parameters, and correlations. The models are posed in a foreign exchange setting. The drift term for the exchange rate is given as a difference of two stochastic short rates, domestic and foreign, each modeled by a G1++ process. For stochastic volatility, we model the variance for the exchange rate by a CIR process. We include tests to show the convergence and the accuracy of the proposed algorithms.
title: ÐÐ¸Ð½Ð¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ñ Ð±Ð°Ð½ÐºÐ¾Ð²ÑÐºÐ¸Ñ ÑÐ¸ÑÐºÐ¾Ð² Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ ÑÐµÐ·ÐµÑÐ²Ð¾Ð²
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
Creators: name: Ð¡ÑÐµÐ¿Ð½Ð¾Ð²Ð°, ÐÐºÐ°ÑÐµÑÐ¸Ð½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: Ð±Ð°Ð½ÐºÐ¾Ð²ÑÐºÐ¸Ðµ ÑÐ¸ÑÐºÐ¸
ÐºÑÐµÐ´Ð¸ÑÐ½ÑÐ¹ ÑÐ¸ÑÐº
ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÐ·ÐµÑÐ²Ð¾Ð²
Ð¼ÐµÑÐ¾Ð´Ñ Ð¾ÑÐµÐ½ÐºÐ¸ ÑÐ¸ÑÐºÐ¾Ð²
Ð¾ÑÐµÐ½ÐºÐ° ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ Ð±Ð°Ð½ÐºÐ°

description: Ð Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ°ÑÑÐ¸ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð±Ð¾Ð»ÐµÐµ Ð²Ð½Ð¸Ð¼Ð°ÑÐµÐ»ÑÐ½Ð¾ Ð¼ÐµÑÐ¾Ð´Ñ. ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð´Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ ÐÐ°Ð½Ðº ÐÐ¢Ð (ÐÐÐ). Ð¦ÐµÐ»Ñ Ð´Ð°Ð½Ð½Ð¾Ð¹ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ Ð·Ð°ÐºÑÐµÐ¿Ð»ÐµÐ½Ð¸Ðµ Ð½Ð°Ð²ÑÐºÐ¾Ð² Ð¸ ÑÐ¼ÐµÐ½Ð¸Ð¹, Ð¿ÑÐ¸Ð¾Ð±ÑÐµÑÐµÐ½Ð½ÑÑ Ð² Ð¿ÑÐ¾ÑÐµÑÑÐµ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ Ð² ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑÐµ, ÑÐ°Ð¼Ð¾ÑÑÐ¾ÑÑÐµÐ»ÑÐ½Ð¾Ðµ Ð¸Ð·ÑÑÐµÐ½Ð¸Ð¸ Ð²Ð¸Ð´Ð¾Ð² Ð±Ð°Ð½ÐºÐ¾Ð²ÑÐºÐ¸Ñ ÑÐ¸ÑÐºÐ¾Ð², Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð¸Ñ Ð¾ÑÐµÐ½ÐºÐ¸ Ð¸ Ð¼Ð¸Ð½Ð¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¿Ð¾Ð´ÑÐ¾Ð±Ð½Ð¾Ðµ Ð¸Ð·ÑÑÐµÐ½Ð¸Ðµ Ð¿ÑÐ¾ÑÐµÑÑÐ° ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐµÐ·ÐµÑÐ²Ð¾Ð² Ñ ÑÐ¾ÑÐºÐ¸ Ð·ÑÐµÐ½Ð¸Ñ Ð¸Ñ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð½Ð° ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²ÑÐµ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»Ð¸ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð±Ð°Ð½ÐºÐ° Ð² ÑÐµÐ»Ð¾Ð¼.
Ð¾ÑÐµÐ½ÐºÐ¸ Ð±Ð°Ð½ÐºÐ¾Ð²ÑÐºÐ¸Ñ ÑÐ¸ÑÐºÐ¾Ð², Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÑÑÑÐºÑÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð°ÐºÑÐ¸Ð²Ð¾Ð² Ð¸ Ð´Ð¾Ð³Ð¾Ð²Ð¾ÑÐ½ÑÑ Ð¾Ð±ÑÐ·Ð°ÑÐµÐ»ÑÑÑÐ² Ð±Ð°Ð½ÐºÐ° Ð´Ð»Ñ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð´Ð²ÑÑ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð¸ÑÐºÐ»ÑÑÐ°ÑÑÐ¸Ñ Ð·Ð°Ð´Ð°Ñ â Ð¼Ð°ÐºÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð´Ð¾ÑÐ¾Ð´Ð¾Ð² Ð¸ Ð¼Ð¸Ð½Ð¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÐ¸ÑÐºÐ¾Ð², ÐºÐ¾ÑÐ¾ÑÐ°Ñ Ð¾Ð±ÑÑÐ»Ð¾Ð²Ð»ÐµÐ½Ð° ÑÐ°Ð·Ð¼ÐµÑÐ°Ð¼Ð¸ ÑÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ ÑÐµÐ·ÐµÑÐ²Ð°. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð² ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹ Ð´Ð°Ð½Ð½ÑÑ ÑÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½ ÑÑÐ´ Ð¼ÐµÑ, ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´ÑÐµÐ¼ÑÑ Ðº Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ ÐÐ°Ð½ÐºÐ¾Ð¼ Ð´Ð»Ñ Ð¼Ð¸Ð½Ð¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð±Ð°Ð½ÐºÐ¾Ð²ÑÐºÐ¸Ñ ÑÐ¸ÑÐºÐ¾Ð².
description: The object of this study is VTB Bank (PJSC).
The purpose of this final qualifying work is to consolidate the skills and abilities acquired in the process of studying at the university, self-study of the types of banking risks, methods of their assessment and minimization, as well as a detailed study of the formation of reserves in terms of their impact on the financial performance of the bank as a whole.
In the practical part, methods for assessing banking risks, problems of forming asset structuring and bank contractual obligations to optimize two mutually exclusive tasks - maximizing revenues and minimizing risks, which is due to the size of the reserve formed, are examined more closely.
Based on the data obtained as a result of the research, a number of measures recommended by the Bank for minimization of banking risks were formed.
Tuffy: Scaling up Statistical Inference in Markov Logic Networks using an RDBMS
Creators: name: Niu, Feng
name: Ré, Christopher
name: Doan, AnHai
name: Shavlik, Jude
Publisher: name: arXiv
Year: 2011
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Markov Logic Networks (MLNs) have emerged as a powerful framework that combines statistical and logical reasoning; they have been applied to many data intensive problems including information extraction, entity resolution, and text mining. Current implementations of MLNs do not scale to large real-world data sets, which is preventing their wide-spread adoption. We present Tuffy that achieves scalability via three novel contributions: (1) a bottom-up approach to grounding that allows us to leverage the full power of the relational optimizer, (2) a novel hybrid architecture that allows us to perform AI-style local search efficiently using an RDBMS, and (3) a theoretical insight that shows when one can (exponentially) improve the efficiency of stochastic local search. We leverage (3) to build novel partitioning, loading, and parallel algorithms. We show that our approach outperforms state-of-the-art implementations in both quality and speed on several publicly available datasets.
description: VLDB2011
title: Introduction: Electronic Literature as a Framework for the Digital Humanities
Creators: name: Rettberg, Scott
name: Saum-Pascual, Alex
Publisher: name: Electronic Book Review
Year: 2020

description: Rettberg and Saum introduce a collection of essays, presented at the Summer 2019 [Frame]works conference at the University of California, Berkely, that bring literary criticism and creativity (equally) to bear on the digital humanities.
Chemical Abundances for the Outer Halo Cluster Pal 4 from Co-added High-Resolution Spectroscopy
Creators: name: Koch, Andreas
name: Côté, Patrick
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Context: Chemical element abundances for distant Galactic globular clusters (GCs) hold important clues to the origin of the Milky Way halo and its substructures. Aims: We study the chemical composition of red giant stars in Pal 4 - one of the most remote GCs in the Milky Way - and compare our abundance measurements to those for both low surface brightness dwarf galaxies, and GCs in the inner and the outer halo. Methods: By co-adding high-resolution, low-S/N Keck/HIRES spectra of 19 stars along the red giant branch, we estimate chemical abundance ratios of 20 alpha-, iron peak-, and neutron-capture elements. Our method gives total uncertainties on most element-to-iron ratios of typically 0.2 dex. Results: We measure [Fe/H] = -1.41 +- 0.04 (statistical) +- 0.17 (systematic) and an alpha-enhancement of [alpha/Fe] = +0.38 +- 0.11 dex, which is consistent with the canonical value of +0.4 dex found for Galactic halo field stars and most halo GCs at this metallicity. Although Pal 4 has higher enhancements in the heavier elements with respect to the halo, the majority of the element ratios are, within the measurement errors, consistent with those for local halo field stars. We find, however, evidence for a lower [Mg/Ca] ratio than in other halo clusters. Conclusions: Based on the available evidence, we conclude that the material from which Pal 4 and the Galactic halo formed experienced similar enrichment processes, despite the apparently younger age of this cluster. Within the limitations of our methodology we find no significant indication of an iron spread, as is typical of genuine GCs of the Milky Way. However, abundance ratios for individual stars in Pal 4 and other distant satellites are urgently needed to understand the relationship, if any, between remote GCs and other halo substructures (i.e., luminous and ultra-faint dwarf spheroidal galaxies).
description: 15 pages, 11 figures, accepted for publication in Astronomy and Astrophysics
Investigating grey matter volume in children with developmental coordination disorder before and after rehabilitation intervention
Creators: name: Malik, Myrah Anum
Publisher: name: University of British Columbia
Year: 2022

description: Developmental Coordination Disorder (DCD) is neurodevelopmental disorder that affects a child's ability to learn and perform motor skills which significantly interferes with their activities of daily living. Currently only one study has identified volume-based brain differences in children with DCD compared to typically developing (TD) children. Furthermore, no study has yet determined if occupational therapy intervention induces a change in grey matter volume in this population. The objectives for this study were to: (1) compare grey matter volume in children with DCD and TD children; (2) examine the relationship of grey matter volume to motor function and attentional performance; and (3) examine neuroplastic changes in grey matter volume in children with DCD following Cognitive Orientation to Occupational Performance intervention. Objectives 1 and 2 were addressed using 30 DCD and 12 TD MRI scans for cross-sectional voxel-based morphometry with a one-way Analysis of Variance (ANOVA) design. Objective 3 was addressed using 20 MRI scans for pre-post longitudinal voxel-based morphometry with a Repeated Measures ANOVA design. Regression analyses were used to examine the relationship between grey matter volume, motor function, and attentional performance. The baseline results revealed that children with DCD had greater grey matter volume in the left superior frontal gyrus (working memory). Poorer motor function was associated with greater grey matter volume in the right middle frontal gyrus, left frontal pole, and superior frontal gyrus. Greater grey matter volume in parietal regions (left precuneus, left superior parietal lobe) was associated with poorer attentional performance. After intervention, grey matter volume decreased in right-sided regions associated with self-regulation (posterior cingulate gyrus), voluntary thinking, cognitive and motor connections (middle cingulate) and executive functioning (superior frontal gyrus). This study suggests that children with DCD may have altered brain development and that CO-OP intervention may facilitate brain maturation in targeted regions.
Hydrodynamic Correlation Functions of a Driven Granular Fluid in Steady State
Creators: name: Vollmayr-Lee, Katharina
name: Aspelmeier, Timo
name: Zippelius, Annette
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study a homogeneously driven granular fluid of hard spheres at intermediate volume fractions and focus on time-delayed correlation functions in the stationary state. Inelastic collisions are modeled by incomplete normal restitution, allowing for efficient simulations with an event-driven algorithm. The incoherent scattering function, F_incoh(q,t), is seen to follow time-density superposition with a relaxation time that increases significantly as volume fraction increases. The statistics of particle displacements is approximately Gaussian. For the coherent scattering function S(q,omega) we compare our results to the predictions of generalized fluctuating hydrodynamics which takes into account that temperature fluctuations decay either diffusively or with a finite relaxation rate, depending on wave number and inelasticity. For sufficiently small wave number q we observe sound waves in the coherent scattering function S(q,omega) and the longitudinal current correlation function C_l(q,omega). We determine the speed of sound and the transport coefficients and compare them to the results of kinetic theory.
description: 10 pages, 16 figures
The scuttle flies (Diptera: Phoridae) of Iran with the description of Mahabadphora aesthesphora as a new genus and species
Creators: name: Namaki-Khameneh, Roya
name: Khaghaninia, Samad
name: L. Disney, R. Henry
name: Maleki-Ravasan, Naseh
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: subject: Research Article
subject: People and places
subject: Biology and life sciences
subject: Computer and information sciences
subject: FOS: Computer and information sciences
subject: Medicine and health sciences
subject: Ecology and environmental sciences

description: Scuttle flies (Diptera: Phoridae) are mega-diverse and often synanthropic insects that play superb roles in various ecosystems. Identification of this group of insects is challenging due to their small size, morphological identification difficulties, niche diversity, and lack of taxonomic keys. To pave the way, an in-depth investigation was directed toward the scuttle flies in Iran using morphological and molecular data. A dichotomous key was also developed to identify the genus and species of the phorids reported in the country. The faunistic findings revealed the presence of about 22,000 (13,903 male and 8,097 female) phorid materials organized into 11 genera. Megaselia species (n = 13768), made up about 99% of the specimens studied. Moreover, 71 morphologically defined species belonging to nine genera were molecularly characterized using COI, 28S rRNA, and Arginine kinase datasets. Excluding four Megaselia Rondani, 1856 species, our results specified that morphologically delimited species were in agreement with the molecular analyses inferred from the COI/28S rRNA and COI/Arginine kinase sequences with genetic distances and phylogenetic trees. According to the results of the present study and previously published data, the Phoridae recorded for Iran are a total of 97 species that are ordered in 13 genera and three subfamilies, including Chonocephalinae, Metopininae and Phorinae. By comparing the known world phorid genera, a new monotypic genus of scuttle flies, Mahabadphora aesthesphora gen. nov., sp. nov., was identified based on its morphological and molecular characteristics and included in an updated key. Our results could comprehensively determine the taxonomic status of scuttle flies in Iran, scrutinize their phylogenetic structures and facilitate their identification.
Acoustic correlates of rhythmic structure of Vietnamese narrative speech
Creators: name: Nguyễn, Anh-Thư
Publisher: name: Mon-Khmer Studies Journal
Year: 2014
Subjects: subject: vie
subject: Acoustic correlates, rhythmic structure, narrative speech

description: This paper reports on acoustic realization of rhythmic structure of Vietnamese narrative prose speech.Eight speakers of Saigon dialect read part of a short story.Acoustic measurements including duration and intensity were taken for every syllable.Syllables were labelled into four types: s (standalone monosyllable); s0 (first syllable of a three-word phrase/chunk in which it is the modifier of a bisyllabic word, e.g., cái ý kiến, thật âu yếm); s1, and s2 (first and second syllables of a bisyllabic word/chunk, e.g., ý kiến, âu yếm).One-, two-and three-syllable units/chunks were also labelled utterance final / non-final.For utterance-medial and utterance-final chunks,the monosyllable had significantly longer duration and stronger intensity.Within bisyllabic words, second syllables had longer duration and stronger intensity than first syllables.Within three-syllable phrases/chunks, the first syllable of a three-word phrase/chunk wasnot significantly different from the first syllable of the bisyllabic word.The second syllables of bisyllabic words/chunks also had longer durationand stronger intensity than the preceding first syllables.This result suggests an iambic pattern of acoustic prominence of bisyllabicand trisyllabic words/phrases in narrative speech.
Gamma Ray Bursts: basic facts and ideas
Creators: name: Ghisellini, Gabriele
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The recent years witnessed a dramatic improvement in our knowledge of the phenomenology and physics of Gamma Ray Bursts (GRBs). However, our "pillars of knowledge" remain a few, while many aspects remain obscure and not understood. There is no general agreement on the radiation mechanism of the prompt emission, nor on the process able to convert the bulk motion of the fireball into random energy of the emitting leptons. The afterglow phase can now be studied at very early phases, showing an unforeseen phenomenology, still to be understood. In this context, the detection of ~GeV emission from ~10 per cent of GRBs, made possible by the {\it Fermi} satellite, can hopefully shed light on some controversial issues.
description: 9 pages, 2 figures, invited talk at the 275 IAU Symp: "Jets at all scales", Buenos Aires, Sept. 2010
Optimal Cox Regression Subsampling Procedure with Rare Events
Creators: name: Keret, Nir
name: Gorfine, Malka
Publisher: name: arXiv
Year: 2020
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Massive sized survival datasets are becoming increasingly prevalent with the development of the healthcare industry. Such datasets pose computational challenges unprecedented in traditional survival analysis use-cases. A popular way for coping with massive datasets is downsampling them to a more manageable size, such that the computational resources can be afforded by the researcher. Cox proportional hazards regression has remained one of the most popular statistical models for the analysis of survival data to-date. This work addresses the settings of right censored and possibly left truncated data with rare events, such that the observed failure times constitute only a small portion of the overall sample. We propose Cox regression subsampling-based estimators that approximate their full-data partial-likelihood-based counterparts, by assigning optimal sampling probabilities to censored observations, and including all observed failures in the analysis. Asymptotic properties of the proposed estimators are established under suitable regularity conditions, and simulation studies are carried out to evaluate the finite sample performance of the estimators. We further apply our procedure on UK-biobank colorectal cancer genetic and environmental risk factors.
description: Journal of the American Statistical Association (2023)
In Black and White: Richmond's Monument Avenue Recontextualized  Through the Photographic Archive
Creators: name: Hensley, Charlsa Anne
Publisher: name: University of Kentucky Libraries
Year: 2019

description: Abstract:
The release of the Monument Avenue Commission Report in July, 2018 was the culmination of over one year of research and collaboration with community members of Richmond, Virginia on how the city should approach the contentious history of Monument Avenue’s five Confederate centerpieces. What the monuments have symbolized within the predominately rich, white neighborhood and outside of its confines has been a matter of debate ever since they were unveiled, but the recent publicity accorded to Confederate monuments has led to considerations by historians, city leaders, and the public regarding recontextualization of Confederate monuments.
Recontextualization of the monuments should not only consider the city’s current constituency, but also the lives, testimonies, and representations of Richmond’s African- American residents as the monuments were built. A comparative case study of photographs from various institutional archives in Richmond, Virginia, depicting late- nineteenth and early twentieth-century scenes from the city’s history reveals that while Monument Avenue and its Confederate celebrations benefitted the city’s upper-class white constituency, its messages extended far beyond Richmond and its Confederate veterans. By bringing to light images and testimonies from the archive that highlight African-American presence, a counter-narrative emerges detailing the construction of power in post-Reconstruction Richmond through Monument Avenue.
Charlsa Hensley's ORCID ID: https://orcid.org/0000-0002-0248-0613
Copyright: © Charlsa Anne Hensley 2019
Digital herders and phase transition in a voting model
Creators: name: Hisakado, Masato
name: Mori, Shintaro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this paper, we discuss a voting model with two candidates, C_1 and C_2. We set two types of voters--herders and independents. The voting of independent voters is based on their fundamental values; on the other hand, the voting of herders is based on the number of votes. Herders always select the majority of the previous $r$ votes, which is visible to them. We call them digital herders. We can accurately calculate the distribution of votes for special cases. When r>=3, we find that a phase transition occurs at the upper limit of t, where t is the discrete time (or number of votes). As the fraction of herders increases, the model features a phase transition beyond which a state where most voters make the correct choice coexists with one where most of them are wrong. On the other hand, when r<3, there is no phase transition. In this case, the herders' performance is the same as that of the independent voters. Finally, we recognize the behavior of human beings by conducting simple experiments.
description: 26 pages, 10 figures
Automatic Optimization for MapReduce Programs
Creators: name: Jahani, Eaman
name: Cafarella, Michael J.
name: Ré, Christopher
Publisher: name: arXiv
Year: 2011
Subjects: subject: Databases (cs.DB)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: The MapReduce distributed programming framework has become popular, despite evidence that current implementations are inefficient, requiring far more hardware than a traditional relational databases to complete similar tasks. MapReduce jobs are amenable to many traditional database query optimizations (B+Trees for selections, column-store- style techniques for projections, etc), but existing systems do not apply them, substantially because free-form user code obscures the true data operation being performed. For example, a selection in SQL is easily detected, but a selection in a MapReduce program is embedded in Java code along with lots of other program logic. We could ask the programmer to provide explicit hints about the program's data semantics, but one of MapReduce's attractions is precisely that it does not ask the user for such information. This paper covers Manimal, which automatically analyzes MapReduce programs and applies appropriate data- aware optimizations, thereby requiring no additional help at all from the programmer. We show that Manimal successfully detects optimization opportunities across a range of data operations, and that it yields speedups of up to 1,121% on previously-written MapReduce programs.
description: VLDB2011
Two-dimensional Weyl points and nodal lines in pentagonal materials and their optical response
Creators: name: Bravo, Sergio
name: Pacheco, M.
name: Nunez, V.
name: Correa, J. D.
name: Chico, Leonor
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Two-dimensional pentagonal structures based on the Cairo tiling are the basis of a family of layered materials with appealing physical properties. In this work we present a theoretical study of the symmetry-based electronic and optical properties of these pentagonal materials. We provide a complete classification of the space groups that support pentagonal structures for binary and ternary systems. By means of first-principles calculations, their electronic band structures and the local spin textures in momentum space are analyzed. Our results show that pentagonal structures can be realized in chiral and achiral lattices with Weyl nodes pinned at high-symmetry points and nodal lines along the Brillouin zone boundary; these degeneracies are protected by the combined action of crystalline and time-reversal symmetries. Additionally, we discuss the linear and nonlinear optical features of some penta-materials, such as the shift current, which shows an enhancement due to the presence of nodal lines and points, and their possible applications.
description: 13 + 23 pages, 9 + 26 figs. Main article + suppl. Info
Le storie divergenti aiutano a pensare: dare voce a un albo illustrato passando per l'oralità
Creators: name: Morandi, Matteo
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2015

description: Il seguente lavoro di ricerca aveva l’obiettivo di verificare il grado d’incidenza dell’approccio “dimmi” di Chambers nel dare voce a un “picturebook”. L’indagine si è svolta in una quarta elementare. La classe ha lavorato su L’approdo di Shaun Tan. Il docente dopo aver selezionato venti immagini le ha sottoposte agli allievi. La settimana seguente, con l’ausilio di una scheda promemoria gli allievi hanno dovuto raccontare ai compagni la loro storia. Dopo aver registrato le narrazioni, vi è stato un momento di discussione attraverso l’approccio “dimmi” durato sessanta minuti. L’ultima tappa di lavoro è stata la stesura della storia attraverso una produzione scritta. I risultati di questa ricerca hanno permesso di capire che la discussione “dimmi” aiuta in parte gli allievi a migliorare gli elaborati scritti, arricchendo dunque i racconti iniziali. Il miglioramento dei testi conclusivi è stato però poco evidente, infatti gli allievi hanno ripreso solo alcuni aspetti della discussione. La sola discussione “dimmi” non è sufficiente, il docente mediante l’utilizzo di cartelloni o appunti dovrebbe dedicare altri momenti alla ripresa dei concetti emersi. Relatore: Daniele Dell’Agnola
title: ÐÐ¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð¿Ð»Ð°ÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð¿ÑÐ¸ ÑÐ°Ð·Ð´Ð°ÑÐµ ÑÑÐ°Ð»ÑÐ½ÑÑ ÑÑÑÐ± Ð±Ð¾Ð»ÑÑÐ¾Ð³Ð¾ Ð´Ð¸Ð°Ð¼ÐµÑÑÐ°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Simulation of plastic deformation processes during expansion of large diameter steel pipes
Creators: name: ÐÐ»Ð¾ÑÐ½Ð¸ÐºÐ¾Ð², Ð¤ÐµÐ´Ð¾Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: Ð¿Ð»Ð°ÑÑÐ¸ÑÐµÑÐºÐ°Ñ Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ñ
ÑÐ°Ð·Ð´Ð°ÑÐ°
ÑÐ°Ð·Ð²Ð°Ð»ÑÑÐ¾Ð²ÐºÐ°
Ð¼ÐµÑÐ¾Ð´ ÑÐ°Ð²Ð½ÑÑ ÑÐ°Ð±Ð¾Ñ
Ð¼ÐµÑÐ¾Ð´ ÑÐ°Ð²Ð½ÑÑ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐµÐ¹
ÐºÑÐµÐ¿Ð»ÐµÐ½Ð¸Ðµ ÑÑÑÐ±
ÑÐ°ÑÑÐµÑ ÑÑÐ¸Ð»Ð¸Ð¹ ÑÐ°Ð·Ð²Ð°Ð»ÑÑÐ¾Ð²ÐºÐ¸
Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ°Ð»Ð»Ð¾Ð² Ð´Ð°Ð²Ð»ÐµÐ½Ð¸ÐµÐ¼
plastic deformation
distribution
flaring
energy method
pipe fastening
calculation of flaring forces
metal pressure processing

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¼ÐµÑÐ¾Ð´Ñ ÑÐ°ÑÑÐµÑÐ° ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ñ Ð¾Ð¿ÐµÑÐ°ÑÐ¸Ð¹ Ð¿Ð¾ Ð¿Ð»Ð°ÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð¼ÐµÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ¸Ñ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¹. ÐÑÐ¿Ð¾Ð»ÑÐ·ÑÑ Ð¼ÐµÑÐ¾Ð´ ÑÐ°Ð²Ð½ÑÑ ÑÐ°Ð±Ð¾Ñ Ð±ÑÐ»Ð¾ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¾ Ð²ÑÑÐ°Ð¶ÐµÐ½Ð¸Ðµ, Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÑÑÐµÐµ Ð¿ÑÐ¸ ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ð¼ Ð¸Ð½ÑÐµÐ³ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ð¸ Ð¿Ð¾Ð»ÑÑÐ¸ÑÑ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ ÑÑÐ¸Ð»Ð¸Ð¹, Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼ÑÑ Ð´Ð»Ñ ÑÐ°Ð·Ð´Ð°ÑÐ¸ Ð¼ÐµÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÐ±Ñ, Ð²ÑÑÐ°Ð¶ÐµÐ½Ð¸Ðµ, Ð´Ð°ÑÑÐµÐµ Ð¿ÑÐ¸Ð±Ð»Ð¸Ð¶ÐµÐ½Ð½ÑÑ Ð¾ÑÐµÐ½ÐºÑ ÑÑÐ¸Ð¼ ÑÑÐ¸Ð»Ð¸ÑÐ¼, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð²ÐµÐ»Ð¸ÑÐ¸Ð½ Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð¼ ÐºÐ¾Ð½ÐµÑÐ½Ð¾ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¸ÑÑÐ»ÐµÐ´ÑÐµÐ¼Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÑÐµÑÑÐ°.
description: In this study, methods for calculating technological operations for plastic deformation of metal structures are considered. Using the method of equal work, an expression was derived that allows numerical integration to obtain the values of the forces required to expand a metal pipe, an expression that gives an approximate estimate of these efforts, as well comparison of the obtained values with the result of a finite element analysis of the process under study.
Chinese-Canadian parents' attitude toward general anesthesia for pediatric dental treatment
Creators: name: Tam, Jessica
Publisher: name: University of British Columbia
Year: 2023

description: Objective: Obtaining informed consent for dental rehabilitation under general anesthesia (GA) for young children with extensive treatment needs is a patient-centered process involving shared decision-making with the family. However, due to intercultural differences, this may present challenges with immigrant families who may not be familiar with North American consent processes and standards of care. This study aimed to explore the barriers and facilitators to immigrant Chinese parents’ provision of informed consent for the use of GA to manage the behaviour of pre-cooperative children with extensive dental treatment needs. Methods: A semi-structured, open-ended questionnaire utilizing vignettes was developed to guide the interview process with immigrant Chinese parents of young children presenting for dental care in Vancouver, Canada. Interviews were conducted in Mandarin and subsequently transcribed, translated, and coded; thematic analysis determined emerging themes. Results: Six major themes emerged from 12 interviews: parental expectations of young children’s ability to cooperate for extensive dental treatment; differences in intercultural perspectives around the need to protect a child’s developing psyche; parental concerns about safety and possible adverse impacts on neurodevelopment; influence of parental knowledge of oral health in the primary dentition; influence of economic factors on providing informed consent; influence of ethnic Chinese cultural values on the informed consent process. Conclusion: The results of this study suggests that differing intercultural expectations related to oral health care for children may present significant barriers to obtaining informed consent for dental rehabilitation under GA for Chinese-Canadian parents. It also emphasizes the importance to discuss potential adverse outcomes associated with GA at the parent consultation appointment. In order to empower the family to make the best informed decision, dentists should consider the acculturation discrepancy of immigrant families to ensure the optimal overall health of the child/family.
The Kinematic Connection Between Galaxies and Dark Matter Haloes
Creators: name: Dutton, Aaron A.
name: Conroy, Charlie
name: Bosch, Frank C. van den
name: Prada, Francisco
name: More, Surhud
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using estimates of dark halo masses from satellite kinematics, weak gravitational lensing, and halo abundance matching, combined with the Tully-Fisher and Faber-Jackson relations, we derive the mean relation between the optical, V_opt, and virial, V_200, circular velocities of early- and late-type galaxies at redshift z~0. For late-type galaxies V_opt ~ V_200 over the velocity range V_opt=90-260 km/s, and is consistent with V_opt = V_maxh (the maximum circular velocity of NFW dark matter haloes in the concordance LCDM cosmology). However, for early-type galaxies V_opt \ne V_200, with the exception of early-type galaxies with V_opt simeq 350 km/s. This is inconsistent with early-type galaxies being, in general, globally isothermal. For low mass (V_opt < 250 km/s) early-types V_opt > V_maxh, indicating that baryons have modified the potential well, while high mass (V_opt > 400 km/s) early-types have V_opt < V_maxh. Folding in measurements of the black hole mass - velocity dispersion relation, our results imply that the supermassive black hole - halo mass relation has a logarithmic slope which varies from ~1.4 at halo masses of ~10^{12} Msun/h to ~0.65 at halo masses of 10^{13.5} Msun/h. The values of V_opt/V_200 we infer for the Milky Way and M31 are lower than the values currently favored by direct observations and dynamical models. This offset is due to the fact that the Milky Way and M31 have higher V_opt and lower V_200 compared to typical late-type galaxies of the same stellar masses. We show that current high resolution cosmological hydrodynamical simulations are unable to form galaxies which simultaneously reproduce both the V_opt/V_200 ratio and the V_opt-M_star (Tully-Fisher/Faber-Jackson) relation.
description: 17 pages, 7 figures, accepted to MNRAS
Millimeter imaging of MWC 758: probing the disk structure and kinematics
Creators: name: Isella, Andrea
name: Natta, Antonella
name: Wilner, David
name: Carpenter, John M.
name: Testi, Leonardo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We investigate the structure and kinematics of the circumstellar disk around the Herbig Ae star MWC 758 using high resolution observations of the 12CO (3-2) and dust continuum emission at the wavelengths of 0.87 and 3.3 mm. We find that the dust emission peaks at an orbital radius of about 100 AU, while the CO intensity has a central peak coincident with the position of the star. The CO emission is in agreement with a disk in keplerian rotation around a 2.0 Msun star, confirming that MWC758 is indeed an intermediate mass star. By comparing the observation with theoretical disk models, we derive that the disk surface density Sigma(r) steeply increases from 40 to 100 AU, and decreases exponentially outward. Within 40 AU, the disk has to be optically thin in the continuum emission at millimeter wavelengths to explain the observed dust morphology, though our observations lack the angular resolution and sensitivity required to constrain the surface density on these spatial scales. The surface density distribution in MWC 758 disk is similar to that of ``transition'' disks, though no disk clearing has been previously inferred from the analysis of the spectral energy distribution (SED). Moreover, the asymmetries observed in the dust and CO emission suggest that the disk may be gravitationally perturbed by a low mass companion orbiting within a radius of 30 AU. Our results emphasize that SEDs alone do not provide a complete picture of disk structure and that high resolution millimeter-wave images are essential to reveal the structure of the cool disk mid plane.
description: ApJ in press. 7 pages, 5 figures