cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
High-throughput kinematic tracking of bird wings using inertial sensor arrays
Creators: name: Senthivasan, Shreeram
Publisher: name: University of British Columbia
Year: 2020

description: Birds accomplish an impressive diversity of flight maneuvers primarily through variation in the motion of their wings. It is for this reason that an understanding of wing kinematics is of broad interest to the study of the physics and control of bird flight. However, current optical approaches to animal motion capture struggle to automate the tracking of fixed points on the wing due to the periodic folding and occlusion of flight surfaces during flapping flight. This greatly increases the time and effort needed to record wing kinematics, as the raw data must be digitized by hand. In this thesis, I made progress towards a new high-throughput approach to recording wing kinematics using body- and wing-mounted inertial sensors. The data loggers designed for this purpose have a mass of 4g including a battery, and are capable of collecting inertial data from up to four sensors at 450Hz for 20 minutes. An accompanying set of R functions were developed to estimate the orientations of the body and wing segments from the raw inertial data, which in turn were used to estimate joint angles over time. These tools were validated against an optical motion capture system and were able estimate the orientation of individual bodies within 3° and angles between bodies within 6° in controlled tests. However, the tools could not be used to record the wing kinematics of pigeons because the angular velocity of the wings exceeded the sensing range of the gyroscopes used in the current design. Specialized high-range gyroscopes are commercially available and could be incorporated into future designs to overcome this limitation. Inertial motion capture has the potential to be a high-throughput, cost-effective, and portable alternative to high-speed video for recording wing kinematics in freely flying birds. This approach could also be used to record detailed kinematics in other animal systems where optical motion capture is infeasible, such as in situations with poor visibility or to study behaviours that occur over large spatial scales.
Few-boson tunneling dynamics of strongly correlated binary mixtures in a double-well
Creators: name: Chatterjee, Budhaditya
name: Brouzos, Ioannis
name: Cao, Lushuai
name: Schmelcher, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We explore the tunneling dynamics of strongly correlated bosonic mixtures in a one-dimensional double-well. The role of the inter- and intra-species interactions and their interplay is investigated using the numerically exact Multi-Configuration Time dependent Hartree (MCTDH) method. The dynamics is studied for three initial configurations: complete and partial population imbalance and a phase separated state. Increasing the inter-species interaction leads to a strong increase of the tunneling time period analogous to the quantum self-trapping for condensates. The intra-species repulsion can suppress or enhance the tunneling period depending on the strength of the inter-species correlations as well as the initial configuration. Completely correlated tunneling between the two species and within the same species as well as mechanisms of species separation and counterflow are revealed. These effects are explained by studying the many-body energy spectra as well as the properties of the contributing stationary states.
description: Significant changes from the previous version. This version accepted for publication
Multiband Fitting to Three Long GRBs with Fermi/LAT Data: Structured Ejecta Sweeping up a Density-Jump Medium
Creators: name: Feng, S. Y.
name: Dai, Z. G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present broadband (radio, optical, X-ray and GeV) fits to the afterglow light curves and spectra of three long-duration gamma-ray bursts (GRBs 080916C, 090902B, and 090926A) detected by the Gamma-Ray Burst Monitor (GBM) and Large Area Telescope (LAT) instruments on the Fermi satellite. Using the observed broadband data, we study the origin of the high energy emission, and suggest that the early-time GeV emission and the late-time radio, optical, and X-ray afterglows can be understood as being due to synchrotron emission from an external forward shock caused by structured ejecta propagating in a wind bubble jumping to a homogeneous density medium. If the ceasing time for majority of the energy injection is assumed to be close to the deceleration time of the forward shock, the structured ejecta with continuous energy injection to the forward shock can well explain the early rising feature of the GeV mission from these burst, and the density-jump medium can account for some certain plateaus or flares in the late afterglows. From our fits, we find that, on one hand, the external shock origin of the GeV photons will make the optical depth have not significant contribution to the early LAT rising part, which will loosen strong constraint of lower limits of Lorentz factor. On the other hand, these Fermi-LAT events preferentially occur in a low-density circumburst environment, in which case the Klein-Nishina cutoff will significantly suppress the Self-Synchrotron Compton (SSC) radiation. Such an environment might result from superbubbles or low-metallicity progenitor stars (which have a low mass-loss rate at late times of stellar evolution) of type Ib/c supernovae.
description: 32 pages, 4 figures, 2 tables; some minor typo corrected, optical depth does not have significant contribution to the result, major conclusions unchanged
Supplementary document for Efficient three-level continuous-wave and GHz passively mode-locked laser by a Nd3+-doped silicate glass single mode fiber - 6227223.pdf
Creators: name: wang, yafei
name: Sun, Yan
name: Wang, Xin
name: chen, yinggang
name: Shao, Chongyun
name: Wang, Shikai
name: Zhang, Lei
name: Chen, Danping
name: Yu, Chunlei
name: Hu, Lili
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: The supplemental fiber and laser properties.
Partial Riemann problem, boundary conditions, and gas dynamics
Creators: name: Dubois, François
Publisher: name: arXiv
Year: 2011
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We introduce in this contribution the notion of partial Riemann problem. Recall that the Riemann problem describes a shock tube interaction between two given states ; the partial Riemann problem is a generalization of the previous concept and introduces the notion of boundary manifold. In what follows, we first recall very classical notions concerning gas dynamics and the associated Riemann problem. In a second part, we introduce the partial Riemann problem for general systems of conservation laws and proves that this problem admits a solution in some class of appropriate nonlinear waves. In section 3, we recall the linearized analysis with the method of characteristics, introduce the weak formulation of the Dirichlet boundary condition for nonlinear situations in terms of the partial Riemann problem and show that lot of physically relevant situations are described with this theoretical framework. In the last paragraph, we propose a practical implementation of the previous onsiderations with the finite volume method.
description: 65 pages
title: Ð­Ð»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ°Ñ ÑÐ°ÑÑÑ ÐÐ­Ð¡ Ñ ÑÑÐµÐ¼Ñ ÑÐµÐ°ÐºÑÐ¾ÑÐ°Ð¼Ð¸ ÐÐÐ­Ð -1000
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: Electric part of Nuclear Power plant with 3 VVER-1000 reactors
Creators: name: Ð£ÑÐµÐ½ÐºÐ¾, ÐÐ»Ð°Ð´Ð¸ÑÐ»Ð°Ð²
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: Ð²ÑÐ±Ð¾Ñ Ð¾ÑÐ½Ð¾Ð²Ð½Ð¾Ð³Ð¾ ÑÐ»ÐµÐºÑÑÐ¾Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ
Ð²ÑÐ±Ð¾Ñ ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÑÑÑ
Ð¼ÐµÑÐ¾Ð´ ÑÐ°ÑÑÐµÑÐ° ÑÐ¾ÐºÐ¾Ð² ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ
Ð²Ð°ÑÐ¸Ð°Ð½Ñ ÑÑÐ¿ÐµÑÐ½Ð¾Ð³Ð¾ ÑÐ°Ð¼Ð¾Ð·Ð°Ð¿ÑÑÐºÐ°
selection of basic electrical equipment
selection of switching equipment
method for calculating short-circuit currents
a successful self-start option

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÑÐµÑÑÑ Ð³Ð»Ð°Ð²Ð½Ð°Ñ ÑÑÐµÐ¼Ð° ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ð¹ ÐÐ­Ð¡ Ñ 3 ÑÐµÐ°ÐºÑÐ¾ÑÐ°Ð¼Ð¸ ÐÐÐ­Ð -1000. ÐÑÐ¾Ð¼Ðµ ÑÐ¾Ð³Ð¾, Ð·Ð´ÐµÑÑ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ: Ð²ÑÐ±Ð¾Ñ Ð¾ÑÐ½Ð¾Ð²Ð½Ð¾Ð³Ð¾ ÑÐ»ÐµÐºÑÑÐ¾Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ, ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÑÑÑ, ÑÐ¾ÐºÐ¾Ð²ÐµÐ´ÑÑÐ¸Ñ ÑÐ°ÑÑÐµÐ¹, Ð¼ÐµÑÐ¾Ð´ ÑÐ°ÑÑÐµÑÐ° ÑÐ¾ÐºÐ¾Ð² ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ, ÑÑÐµÐ½Ð°ÑÐ¸Ñ ÑÑÐ¿ÐµÑÐ½Ð¾Ð³Ð¾ ÑÐ°Ð¼Ð¾Ð·Ð°Ð¿ÑÑÐºÐ° Ð¸ Ð²ÑÐµÐ¼ÐµÐ½Ð¸ Ð¿ÑÑÐºÐ° ÑÐ°Ð¼Ð¾Ð³Ð¾ Ð¼Ð¾ÑÐ½Ð¾Ð³Ð¾ Ð°Ð³ÑÐµÐ³Ð°ÑÐ° ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð½ÑÐ¶Ð´.
description: In this project the main layout of electrical connections of the 3000 MW nuclear power plant is engineered. Furthermore, the choice of main electrical equipment, switching equipment, current-carrying parts, calculation of short circuit currents, successful scenario of electric motors self-start, start time of the most powerful aggregate of own needs, schemes of own needs and switchgears are presented.
Additional file 1 of How to evaluate surgical tourism service organizations in China: indicators system development and a pilot application
Creators: name: Zhang, Dan
name: Yan, Yue
name: Liao, Mei-xia
name: Liu, Ting-fang
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Additional file 1. Scoring results of the International Medical Department of a hospital.
Ri–posando lo sguardo Progettazione di una rivista per ri–scoprire l’identità territoriale ligure attraverso storie di realtà locali
Creators: name: Enrico, Veronica
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2021

description: La valorizzazione e l’identità di un territorio sono tematiche molto importanti affrontate in modi molto diversi. Anche all’interno della disciplina del design si può parlare di identità territoriale e della sua valorizzazione. La necessità di riavvicinarmi al mio luogo di provenienza ha fatto nascere in me la voglia di scoprire maggiormente il territorio. Mi sono chiesta quale contributo da designer potessi realizzare per la mia terra di origine attraverso la comunicazione visiva. Ed è così che è nato ‘scutizzu’, una rivista ligure indipendente che si pone l’obiettivo di raccontare e far riscoprire ai giovani liguri le piccole realtà che contribuiscono alla definizione dell’identità del territorio. Una rivista dei giovani, per i giovani e per chi giovane vuole rimanere, che cerca di arrivare al lettore tramite linguaggi divertenti e prodotti diversificati. La materialità della carta, l’esperienza tattile dello sfogliare un prodotto editoriale unito ai contenuti extra che può offrire il web, possono dare vita ad una fruizione emotiva e coinvolgente.
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ ÑÐ³Ð»ÐµÑÐ¾Ð´Ð½ÑÑ Ð½Ð°Ð½Ð¾ÑÑÑÐ±Ð¾Ðº Ñ ÑÑÐ°ÑÑÐ¸ÐµÐ¼ Ð°ÑÐ¾Ð¼Ð½Ð¾-ÑÐ»Ð¾ÐµÐ²Ð¾Ð³Ð¾ Ð¾ÑÐ°Ð¶Ð´ÐµÐ½Ð¸Ñ
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
title: Development of carbon nanotubes technology with participation atomic layer deposition
Creators: name: ÐÐ¾Ð³ÑÐ´Ð¸Ð½Ð°, ÐÐµÑ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: 2023
Subjects: Ð¼Ð°ÑÑÐ¸Ð²Ñ ÑÐ³Ð»ÐµÑÐ¾Ð´Ð½ÑÑ Ð½Ð°Ð½Ð¾ÑÑÑÐ±Ð¾Ðº
Ð¿Ð»Ð°Ð·Ð¼Ð¾Ñ Ð¸Ð¼Ð¸ÑÐµÑÐºÐ¾Ðµ Ð¾ÑÐ°Ð¶Ð´ÐµÐ½Ð¸Ðµ
Ð°ÑÐ¾Ð¼Ð½Ð¾-ÑÐ»Ð¾ÐµÐ²Ð¾Ðµ Ð¾ÑÐ°Ð¶Ð´ÐµÐ½Ð¸Ðµ
ÑÐµÑÑÐ¾ÑÐµÐ½
Ð¾ÐºÑÐ¸Ð´ Ð¶ÐµÐ»ÐµÐ·Ð°
arrays of carbon nanotubes
plasma enhance chemical vapor deposition
atomic layer deposition
ferrocene
iron oxide

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸Ð·ÑÑÐµÐ½ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð» Ð¿Ð¾ Ð¼ÐµÑÐ¾Ð´Ð°Ð¼ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ ÐºÐ°ÑÐ°Ð»Ð¸Ð·Ð°ÑÐ¾ÑÐ° Ð´Ð»Ñ ÑÐ¾ÑÑÐ° Ð£ÐÐ¢. ÐÐ»Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ ÐºÐ°ÑÐ°Ð»Ð¸Ð·Ð°ÑÐ¾ÑÐ° Ð²ÑÐ±ÑÐ°Ð½ Ð¼ÐµÑÐ¾Ð´ Ð°ÑÐ¾Ð¼Ð½Ð¾-ÑÐ»Ð¾ÐµÐ²Ð¾Ð³Ð¾ Ð¾ÑÐ°Ð¶Ð´ÐµÐ½Ð¸Ñ. ÐÐ¾Ð»ÑÑÐµÐ½Ð¸Ðµ Ð¾ÐºÑÐ¸Ð´Ð° Ð¶ÐµÐ»ÐµÐ·Ð° Ð² ÐºÐ°ÑÐµÑÑÐ²Ðµ ÐºÐ°ÑÐ°Ð»Ð¸Ð·Ð°ÑÐ¾ÑÐ° Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð°ÑÐ¾Ð¼Ð½Ð¾-ÑÐ»Ð¾ÐµÐ²Ð¾Ð³Ð¾ Ð¾ÑÐ°Ð¶Ð´ÐµÐ½Ð¸Ñ Ð¸ ÑÐ¾ÑÑ Ð£ÐÐ¢ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¿Ð»Ð°Ð·Ð¼Ð¾ÑÐ¸Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¼ÐµÑÐ¾Ð´Ð° Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ñ Ð² Ð¾Ð´Ð½Ð¾Ð¹ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐµ. ÐÐ»Ñ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ ÑÐ°ÐºÐ¾Ð¹ ÑÐ½Ð¸ÑÐ¸ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð° Ð±Ð¾Ð»ÑÑÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ, Ð¸Ð·Ð³Ð¾ÑÐ¾Ð²Ð»ÐµÐ½Ð¸Ñ Ð¸ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾Ð¼Ñ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ñ ÑÐµÐ°ÐºÑÐ¾ÑÐ°. Ð ÑÐ¾Ð´Ðµ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð¸Ð·ÑÑÐµÐ½Ñ ÑÐ¸Ð·Ð¸ÐºÐ¾-ÑÐ¸Ð¼Ð¸ÑÐµÑÐºÐ¸Ðµ Ð·Ð°ÐºÐ¾Ð½Ð¾Ð¼ÐµÑÐ½Ð¾ÑÑÐ¸ Ð¾ÑÐ°Ð¶Ð´ÐµÐ½Ð¸Ñ Ð¾ÐºÑÐ¸Ð´Ð° Ð¶ÐµÐ»ÐµÐ·Ð° Ð² Ð½Ð¾Ð²Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ðµ ÑÐµÐ°Ð³ÐµÐ½ÑÐ¾Ð². ÐÐ¾Ð»ÑÑÐµÐ½Ð½ÑÐµ ÐºÐ°ÑÐ°Ð»Ð¸ÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÑÑÑÐºÑÑÑÑ Ð¿Ð¾ÐºÐ°Ð·Ð°Ð»Ð¸ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ Ð´Ð»Ñ ÑÐ¾ÑÑÐ° Ð¼Ð°ÑÑÐ¸Ð²Ð¾Ð² Ð£ÐÐ¢.
description: In this work the methods of obtaining a catalyst for the growth of CNTs have been studied. To obtain the catalyst the method of atomic layer deposition (ALD) was chosen. The obtain of iron oxide as a catalyst and the growth of CNTs by plasma enhanced chemical vapor deposition were carried out in one setup. To create such a unified installation a lot of work has been done on the design and experimental testing of the reactor. In the course of the experimental work, the physicochemical regularities of the ALD of iron oxide in a new system of reagents were studied. The obtained catalysts have shown efficiency for the growth of CNT.
Random_Kirigami-SI.pdf from Geometric mechanics of ordered and disordered kirigami
Creators: name: Chaudhary, G.
name: Niu, L.
name: Han, Q.
name: Lewicka, M.
name: Mahadevan, L.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: 90506 Structural Engineering
subject: FOS: Civil engineering
subject: 10299 Applied Mathematics not elsewhere classified
subject: FOS: Mathematics
subject: 30399 Macromolecular and Materials Chemistry not elsewhere classified
subject: FOS: Chemical sciences

description: The presence of cuts in a thin planar sheet can dramatically alter its mechanical and geometrical response to loading, as the cuts allow the sheet to deform strongly in the third dimension. We use numerical experiments to characterize the geometric mechanics of kirigamized sheets as a function of the number, size and orientation of cuts. We show that the geometry of mechanically loaded sheets can be approximated as a composition of simple developable units: flats, cylinders, cones and compressed Elasticae. This geometric construction yields scaling laws for the mechanical response of the sheet in both the weak and strongly deformed limit. In the ultimately stretched limit, this further leads to a theorem on the nature and form of geodesics in an arbitrary kirigami pattern, consistent with observations and simulations. Finally, we show that by varying the shape and size of the geodesic in a kirigamized sheet, we can control the deployment trajectory of the sheet, and thence its functional properties as an exemplar of a tunable structure that can serve as a robotic gripper, a soft light window or the basis for a physically unclonable device. Overall our study of random kirigami sets the stage for controlling the shape and shielding the stresses in thin sheets using cuts.
Deriving Deligne-Mumford Stacks with Perfect Obstruction Theories
Creators: name: Schürg, Timo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We give conditions for a n-connective quasicoherent obstruction theory on a Deligne-Mumford stack to come from the structure of a connective spectral Deligne-Mumford stack on the underlying topos.
description: 25 pages; v.4: Assumptions added to correct Lemma; Main result now gives necessary and sufficient conditions for an obstruction theory to be induced by a derived structure; Erratum to published version is to appear
A study of short-term skeletal, dental, and soft tissue effects of Class II malocclusions treated with InvisalignⓇ with Mandibular Advancement Feature or Twin Block appliance compared with historical controls
Creators: name: Blackham, Spencer Sonntag
Publisher: name: University of British Columbia
Year: 2020

description: Introduction: The purpose of this retrospective cephalometric study was to compare short-term skeletal, dental, and soft tissue effects in Class II malocclusions treated with Invisalign® with Mandibular Advancement Feature (IMAF) as compared to Twin Block (TB) appliance, and age and gender matched historical controls. Methods: 64 Class II malocclusion patients received phase I treatment with IMAF or TB, 32 in each group. Comprehensive phase II treatment was then completed for 19 of the IMAF group with Invisalign® clear aligner therapy and 19 patients of the TB group with full fixed edgewise appliances (FEA). 32 longitudinal historical controls were age and gender matched to the IMAF sample. Lateral cephalograms were obtained and intraoral photographs reviewed before treatment (T1), immediately following end of the active advancement of phase I (T2), and at completion of comprehensive phase II orthodontic treatment (T3). Radiographs were randomly traced by a single investigator blinded to group allocation. ANOVA and Tukey tests were used for inter-group comparisons. Intraclass correlations, t-tests, Dahlberg’s error, and scatter plots were utilized for reliability testing. Results: After phase I treatment, both TB and IMAF decreased the ANB angle, facial convexity, and overjet significantly more than the controls. IMAF decreased the overjet through significant retraction of the upper incisor and protrusion of the lower incisor. IMAF also impeded the vertical eruption of the lower incisor. TB decreased the overjet via retraction and retroclination of the upper incisor and protrusion of the lower incisor. Following phase II comprehensive treatment both treatment groups decreased the Wits Appraisal and overjet significantly more than the control sample. The lower incisor was significantly proclined and protruded in the TB and FEA group, and the lower incisor significantly protruded in the IMAF and Invisalign® group. Only the TB and FEA group significantly decreased the facial convexity more than the control group. Conclusions: IMAF with Invisalign® treatment and TB followed by FEA are effective in correcting a Class II malocclusion. Treatment with IMAF may result in less proclination of the lower incisors compared to the TB appliance.
Transport, atom blockade and output coupling in a Tonks-Girardeau gas
Creators: name: Rutherford, L.
name: Goold, J.
name: Busch, Th.
name: McCann, J. F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recent experiments have demonstrated how quantum-mechanical impurities can be created within strongly correlated quantum gases and used to probe the coherence properties of these systems [S. Palzer, C. Zipkes, C. Sias, and M. Köhl, Phys. Rev. Lett. 103, 150601 (2009).]. Here we present a phenomenological model to simulate such an output coupler for a Tonks-Girardeau gas that shows qualitative agreement with the experimental results for atom transport and output coupling. Our model allows us to explore nonequilibrium transport phenomena in ultracold quantum gases and leads us to predict a regime of atom blockade, where the impurity component becomes localized in the parent cloud despite the presence of gravity. We show that this provides a stable mixed-species quantum gas in the strongly correlated limit.
Thermodynamics and phase transitions for the Heisenberg model on the pinwheel distorted kagome lattice
Creators: name: Khatami, Ehsan
name: Singh, Rajiv R. P.
name: Rigol, Marcos
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the Heisenberg model on the pinwheel distorted kagome lattice as observed in the material Rb_2Cu_3SnF_12. Experimentally relevant thermodynamic properties at finite temperatures are computed utilizing numerical linked-cluster expansions. We also develop a Lanczos-based, zero-temperature, numerical linked cluster expansion to study the approach of the pinwheel distorted lattice to the uniform kagome-lattice Heisenberg model. We find strong evidence for a phase transition before the uniform limit is reached, implying that the ground state of the kagome-lattice Heisenberg model is likely not pinwheel dimerized and is stable to finite pinwheel-dimerizing perturbations.
description: 6 pages, 6 figures, 1 table
The social within: Pichon Rivière, vínculo, & the spiral process
Creators: name: Romero Garcia, Marco Antonio
Publisher: name: No Publisher Supplied
Year: 2021

description: Psychoanalytic scholarship from the Latin American region is not well represented in the broader psychoanalytic discourse in the United States. The purpose of this dissertation is to research the contributions of notable psychoanalyst Enrique Pichon Rivière [1907-1977], a pioneer from Argentina who influenced the first generation of psychoanalysts from the Río de la Plata region of Latin America and the broader South American psychoanalytic community. Pichon Rivière’s theoretical corpus is an innovative attempt toward a relational and group-based conception of subjectivity. It attempts to integrate the socio-cultural realm in conceptions of the psyche and clinical intervention. Pichon Rivière was the teacher of notable psychoanalysts from the Río de la Plata region, Willy & Madeleine Baranger, who conceptualized the psychoanalytic situation as intersubjective. Recent trends towards relationality and intersubjectivity in American psychoanalytic psychotherapy suggest Pichon Rivière’s theoretical corpus is highly relevant to current practice and deserves an in-depth review. The present study attempts to explain Pichon Rivière’s theoretical corpus, connect Pichon Rivière’s teachings to the theoretical developments of Willy and Madeleine Baranger, establish links between Pichon Rivière’s theory and American interpersonal and relational psychoanalysis, and explore parallels between Pichon Rivière’s upbringing and his writings.
description: Las teorías psicoanalíticas provenientes de Latinoamérica no están adecuadamente representadas en el psicoanálisis estadounidense. El propósito de esta tesis doctoral es investigar las contribuciones del notable psicoanalista Enrique Pichon Rivière [1907-1977], teórico pionero de Argentina quien influenció a la primera generación de psicoanalistas rioplatenses y suramericanos. El corpus teórico de Pichon Rivière es una propuesta innovadora que intenta llevar al psicoanálisis de su época a una perspectiva grupal y relacional de la subjetividad. Su teoría intenta integrar el ámbito sociocultural en concepciones del psiquismo y la intervención clínica. Pichon Rivière fue el maestro de los reconocidos psicoanalistas rioplatenses, Willy & Madeleine Baranger, quienes conceptualizaron la intersubjetividad del campo psicoanalítico. Debido al reciente interés en perspectivas relacionales e intersubjetivas en el psicoanálisis estadounidense, las propuestas teóricas de Pichon Rivière son de gran relevancia a la práctica clínica contemporánea, de modo que merecen una revisión a profundidad. El trabajo doctoral presente explicará la propuesta teórica de Pichon Rivière, conectará las enseñanzas de Pichon Rivière con las propuestas teóricas de Willy & Madeleine Baranger, establecerá vínculos entre la teoría de Pichon Rivière y el psicoanálisis interpersonal-relacional estadounidense, y explorará la influencia del desarrollo psicosocial de Pichon Rivière en su propuesta teórica.
A Longitudinal Dataset of Twitter ISIS Users
Creators: name: Karimi, Younes
Publisher: name: figshare
Year: 2022
Subjects: subject: 80709 Social and Community Informatics
subject: FOS: Media and communications
subject: 80107 Natural Language Processing
subject: FOS: Computer and information sciences
subject: Applied Computer Science

description: Submitted to ICWSM 2022
An Efficient and User Privacy-Preserving Routing Protocol for Wireless Mesh Networks
Creators: name: Sen, Jaydip
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Wireless mesh networks (WMNs) have emerged as a key technology for next generation wireless broadband networks showing rapid progress and inspiring numerous compelling applications. A WMN comprises of a set of mesh routers (MRs) and mesh clients (MCs), where MRs are connected to the Internet backbone through the Internet gateways (IGWs). The MCs are wireless devices and communicate among themselves over possibly multi-hop paths with or without the involvement of MRs. User privacy and security have been primary concerns in WMNs due to their peer-to-peer network topology, shared wireless medium, stringent resource constraints, and highly dynamic environment. Moreover, to support real-time applications, WMNs must also be equipped with robust, reliable and efficient routing protocols so as to minimize the end-to-end latency. Design of a secure and efficient routing protocol for WMNs, therefore, is of paramount importance. In this paper, we propose an efficient and reliable routing protocol that also provides user anonymity in WMNs. The protocol is based on an accurate estimation of the available bandwidth in the wireless links and a robust estimation of the end-to-end delay in a routing path, and minimization of control message overhead. The user anonymity, authentication and data privacy is achieved by application of a novel protocol that is based on Rivest's ring signature scheme. Simulations carried out on the proposed protocol demonstrate that it is more efficient than some of the existing routing protocols.
description: 14 pages, 10 figures, i table
Autophagy in major human diseases.
Creators: name: Klionsky, Daniel J
name: Petroni, Giulia
name: Amaravadi, Ravi K
name: Baehrecke, Eric H
name: Ballabio, Andrea
name: Boya, Patricia
name: Pedro, José Manuel Bravo-San
name: Cadwell, Ken
name: Cecconi, Francesco
name: Choi, Augustine MK
name: Choi, Mary E
name: Chu, Charleen T
name: Codogno, Patrice
name: Colombo, Maria Isabel
name: Cuervo, Ana Maria
name: Deretic, Vojo
name: Dikic, Ivan
name: Elazar, Zvulun
name: Eskelinen, Eeva-Liisa
name: Fimia, Gian Maria
name: Gewirtz, David A
name: Green, Douglas R
name: Hansen, Malene
name: Jäättelä, Marja
name: Johansen, Terje
name: Juhász, Gábor
name: Karantza, Vassiliki
name: Kraft, Claudine
name: Kroemer, Guido
name: Ktistakis, Nicholas T
name: Kumar, Sharad
name: Lopez-Otin, Carlos
name: Macleod, Kay F
name: Madeo, Frank
name: Martinez, Jennifer
name: Meléndez, Alicia
name: Mizushima, Noboru
name: Münz, Christian
name: Penninger, Josef M
name: Perera, Rushika M
name: Piacentini, Mauro
name: Reggiori, Fulvio
name: Rubinsztein, David C
name: Ryan, Kevin M
name: Sadoshima, Junichi
name: Santambrogio, Laura
name: Scorrano, Luca
name: Simon, Hans-Uwe
name: Simon, Anna Katharina
name: Simonsen, Anne
name: Stolz, Alexandra
name: Tavernarakis, Nektarios
name: Tooze, Sharon A
name: Yoshimori, Tamotsu
name: Yuan, Junying
name: Yue, Zhenyu
name: Zhong, Qing
name: Galluzzi, Lorenzo
name: Pietrocola, Federico
Publisher: name: The Francis Crick Institute
Year: 2021
Subjects: Model organisms
Biochemistry & Proteomics
Imaging
Signalling & Oncogenes
Cell Biology
Chemical Biology & High Throughput

description: Autophagy is a core molecular pathway for the preservation of cellular and organismal homeostasis. Pharmacological and genetic interventions impairing autophagy responses promote or aggravate disease in a plethora of experimental models. Consistently, mutations in autophagy-related processes cause severe human pathologies. Here, we review and discuss preclinical data linking autophagy dysfunction to the pathogenesis of major human disorders including cancer as well as cardiovascular, neurodegenerative, metabolic, pulmonary, renal, infectious, musculoskeletal, and ocular disorders.
Smooth double barriers in quantum mechanics
Creators: name: Dutt, Avik
name: Kar, Sayan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Quantum mechanical tunneling across smooth double barrier potentials modeled using Gaussian functions, is analyzed numerically and by using the WKB approximation. The transmission probability, resonances as a function of incident particle energy, and their dependence on the barrier parameters are obtained for various cases. We also discuss the tunneling time, for which we obtain generalizations of the known results for rectangular barriers.
description: 23 pages, 8 figures, misplaced parenthesis and a few typos corrected
Yukawaon Model with U(3)$\times$O(3) Family Symmetries
Creators: name: Koide, Yoshio
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A quark and lepton mass matrix model with family symmetries U(3)$\times$O(3) is investigated on the basis of the so-called yukawaon model. In the present model, quarks and leptons are assigned to $(\ell, e^c, u^c) \sim ({\bf 3}, {\bf 3}, {\bf 3}^*)$ of U(3) and $(q, d^c, ν^c) \sim ({\bf 3}, {\bf 3}, {\bf 3})$ of O(3). Then, the neutrino mass matrix is given by $M_ν= m_D M_R^{-1} m_D^T$ with $m_D \propto < Φ_e > $, where the charged lepton mass matrix $M_e$ is given by $M_e = k < Φ_e >$. A merit in considering U(3)$\times$O(3) lies in that we can lower the cutoff scale $Λ$ in the yukawaon model.
description: 14 pages, no figure, minor change of model, title changed
Calabi-Yau Orbifolds and Torus Coverings
Creators: name: Hanany, Amihay
name: Jejjala, Vishnu
name: Ramgoolam, Sanjaye
name: Seong, Rak-Kyeong
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The theory of coverings of the two-dimensional torus is a standard part of algebraic topology and has applications in several topics in string theory, for example, in topological strings. This paper initiates applications of this theory to the counting of orbifolds of toric Calabi-Yau singularities, with particular attention to Abelian orbifolds of C^D. By doing so, the work introduces a novel analytical method for counting Abelian orbifolds, verifying previous algorithm results. One identifies a p-fold cover of the torus T^{D-1} with an Abelian orbifold of the form C^D/Z_p, for any dimension D and a prime number p. The counting problem leads to polynomial equations modulo p for a given Abelian subgroup of S_D, the group of discrete symmetries of the toric diagram for C^D. The roots of the polynomial equations correspond to orbifolds of the form C^D/Z_p, which are invariant under the corresponding subgroup of S_Ds. In turn, invariance under this subgroup implies a discrete symmetry for the corresponding quiver gauge theory, as is clearly seen by its brane tiling formulation.
description: 33 pages, 5 figures, 7 tables; version published on JHEP
Figure S1 from Dopamine mediates the pea aphid wing plasticity
Creators: name: Liu, Xiaomi
name: Brisson, Jennifer A.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Developmental Biology

description: Total number of offspring produced in the 24h after agonist or antagonist injection
title: ÐÐ¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¸ Ð¸Ð·Ð³Ð¾ÑÐ¾Ð²Ð»ÐµÐ½Ð¸Ðµ Ð¸Ð½Ð´Ð¸Ð²Ð¸Ð´ÑÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÑÐµÐ·Ð° ÑÑÐ¾Ð¿Ñ Ð´Ð»Ñ Ð±Ð¸Ð¾Ð¼ÐµÑ Ð°Ð½Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¾ÑÐµÐ½ÐºÐ¸ Ð¿Ð¾Ñ Ð¾Ð´ÐºÐ¸ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð²Ð¸Ð´ÐµÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·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: Modeling and fabrication of an individual prosthetic foot for biomechanical gait assessment using video analysis
Creators: name: ÐÐ°Ð»ÑÑÐµÐ²Ð°, ÐÐ»ÐµÑÑ
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: ÑÑÐ¾Ð¿Ð°
Ð²Ð¸Ð´ÐµÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·
Ð±Ð¸Ð¾Ð¼ÐµÑ Ð°Ð½Ð¸ÐºÐ° Ð¿Ð¾Ñ Ð¾Ð´ÐºÐ¸ ÑÐµÐ»Ð¾Ð²ÐµÐºÐ°
Ð¿ÑÐ¾ÑÐµÐ· ÑÑÐ¾Ð¿Ñ
3d-Ð¼Ð¾Ð´ÐµÐ»Ñ Ð¿ÑÐ¾ÑÐµÐ·Ð° ÑÑÐ¾Ð¿Ñ
foot
video-analysis
biomechanics of human gait
foot prosthesis
3d model of foot prosthesis

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð±ÑÐ»Ð¾ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ðµ ÑÑÐµÑÐ¼ÐµÑÐ½Ð¾Ð¹ ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¿ÑÐ¾ÑÐµÐ·Ð° ÑÑÐ¾Ð¿Ñ Ð´Ð»Ñ ÑÐµÐ»Ð¾Ð²ÐµÐºÐ° Ñ Ð°Ð¼Ð¿ÑÑÐ°ÑÐ¸ÐµÐ¹ Ð²ÐµÑÑÐ½ÐµÐ¹ ÑÑÐµÑÐ¸ Ð»ÐµÐ²Ð¾Ð¹ Ð³Ð¾Ð»ÐµÐ½Ð¸, Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ ÑÐ°ÑÑÐµÑ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð½Ð¾-Ð´ÐµÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ñ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¿Ð¾Ð´ Ð´ÐµÐ¹ÑÑÐ²Ð¸ÐµÐ¼ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸ Ð½Ð° Ð¾ÑÐ´ÐµÐ»ÑÐ½ÑÑ ÑÐµÐ³Ð¼ÐµÐ½ÑÐ°Ñ Ð¿ÑÐ¾ÑÐµÐ·Ð° ÑÑÐ¾Ð¿Ñ, ÑÐ´ÐµÐ»Ð°Ð½Ñ Ð²ÑÐ²Ð¾Ð´Ñ Ð¾ Ð¼Ð°ÐºÑÐ¸Ð¼Ð°Ð»ÑÐ½ÑÑ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸ÑÑ, Ð²Ð¾Ð·Ð½Ð¸ÐºÐ°ÑÑÐ¸Ñ Ð² Ð¼Ð¾Ð´ÐµÐ»Ð¸, Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð²Ð¸Ð´ÐµÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¸ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð½Ð¾Ð³Ð¾ ÑÐ¸ÑÑÐ¾Ð²Ð¾Ð³Ð¾ Ð´Ð²Ð¾Ð¹Ð½Ð¸ÐºÐ° Ð¿Ð°ÑÐ¸ÐµÐ½ÑÐ° Ð±ÑÐ»Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ Ð³ÑÐ°ÑÐ¸ÐºÐ¸ Ð¿ÐµÑÐµÐ¼ÐµÑÐµÐ½Ð¸Ñ ÑÐµÐ³Ð¼ÐµÐ½ÑÐ¾Ð² Ð½Ð¸Ð¶Ð½Ð¸Ñ ÐºÐ¾Ð½ÐµÑÐ½Ð¾ÑÑÐµÐ¹, Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ Ð¿Ð¾ÑÐ¾Ð´ÐºÐ¸ ÑÐµÐ»Ð¾Ð²ÐµÐºÐ° Ñ ÑÐ°Ð·Ð½ÑÐ¼Ð¸ Ð¿ÑÐ¾ÑÐµÐ·Ð°Ð¼Ð¸.
description: In this work we built a three-dimensional computer model of foot prosthesis for upper third part shin loss amputee, calculated the stress-strain state of the model under the action of load, made conclusions about the maximum stresses occurring in the model, obtained graphs of the movement of the lower limbs extremities using video-analysis, carried out a comparison of a human gait with different prosthesis.
Development of a spatiotemporal decision support framework for managing urban stormwater infrastructures : focusing on risk assessment, climate change and funding strategies
Creators: name: Abebe, Yekenalem
Publisher: name: University of British Columbia
Year: 2020

description: This dissertation proposes a comprehensive stormwater infrastructure management framework, considering climate change and urbanization. It starts by presenting a Bayesian Network (BN) model to investigate food vulnerability and storm sewer renewal complexity. The methodology is used to quantify uncertainty and capture the causal nexus between the various factors considered in the study. This helps us understand the social, economic, and physical vulnerabilities in relation to urban flooding and storm sewer failure. Then a Dynamic Bayesian Network (DBN) model is developed to assess the risk of storm sewer failure. By considering both asset deterioration and capacity failure, the method provides a way to investigate climate change and urbanization impacts in the asset replacement and renewal prioritization process. Based on the output from the food vulnerability and failure risk assessment, critical areas are identified for further analysis. For these areas, a risk-based cost-benefit analysis is presented to investigate possible adaptation alternatives. Lastly, a System Dynamics (SD) approach is proposed to investigate sustainable funding strategies for stormwater infrastructure management. The full implementation of the proposed models in a Geographic Information System (GIS) platform provides a spatiotemporal framework to guide stormwater infrastructure management decisions. The research outcome is vital in improving current practices in asset management and climate change adaptation. The framework enables strategic decision making and aids in implementing proactive asset management programs. In addition, it helps in allocating scarce public resources and prioritizing investment decisions effectively.
Galaxy clustering and projected density profiles as traced by satellites in photometric surveys: Methodology and luminosity dependence
Creators: name: Wang, Wenting
name: Jing, Y. P.
name: Li, Cheng
name: Okumura, Teppei
name: Han, Jiaxin
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We develop a new method which measures the projected density distribution w_p(r_p)n of photometric galaxies surrounding a set of spectroscopically-identified galaxies, and simultaneously the projected correlation function w_p(r_p) between the two populations. In this method we are able to divide the photometric galaxies into subsamples in luminosity intervals when redshift information is unavailable, enabling us to measure w_p(r_p)n and w_p(r_p) as a function of not only the luminosity of the spectroscopic galaxy, but also that of the photometric galaxy. Extensive tests show that our method can measure w_p(r_p) in a statistically unbiased way. The accuracy of the measurement depends on the validity of the assumption in the method that the foreground/background galaxies are randomly distributed and thus uncorrelated with those galaxies of interest. Therefore, our method can be applied to the cases where foreground/background galaxies are distributed in large volumes, which is usually valid in real observations. We applied our method to data from SDSS including a sample of 10^5 LRGs at z~0.4 and a sample of about half a million galaxies at z~0.1, both of which are cross-correlated with a deep photometric sample drawn from the SDSS. On large scales, the relative bias factor of galaxies measured from w_p(r_p) at z~0.4 depends on luminosity in a manner similar to what is found at z~0.1, which are usually probed by autocorrelations of spectroscopic samples. On scales smaller than a few Mpc and at both z~0.4 and z~0.1, the photometric galaxies of different luminosities exhibit similar density profiles around spectroscopic galaxies at fixed luminosity and redshift. This provides clear support for the assumption commonly-adopted in HOD models that satellite galaxies of different luminosities are distributed in a similar way, following the dark matter distribution within their host halos.
description: 38 pages, 12 figures, published in ApJ
A strongly starforming group: three massive galaxies associated with a QSO
Creators: name: Carrera, F. J.
name: Page, M. J.
name: Stevens, J. A.
name: Ivison, R. J.
name: Dwelly, T.
name: Ebrero, J.
name: Falocco, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present here photometric redshift confirmation of the presence of large scale structure around the z=1.82 QSO RXJ0941, which shows an overdensity of submm sources. Radio imaging confirms the presence of the submm sources and pinpoints their likely optical-NIR counterparts. Four of the five submm sources present in this field (including the QSO) have counterparts with redshifts compatible with z=1.82. We show that our photometric redshifts are robust against the use of different spectral templates. We have measured the galaxy stellar mass of the submm galaxies from their rest-frame K-band luminosity obtaining log(M*/Msun)~11.5+-0.2, slightly larger than the Schechter mass of present day galaxies, and hence indicating that most of the stellar mass is already formed. We present optical-to-radio spectral energy distributions (SEDs) of the five SCUBA sources. The emission of RXJ0941 is dominated by reprocessed AGN emission in the observed MIR range, while the starburst contribution completely dominates in the submm range. The SEDs of the other three counterparts are compatible with a dominant starburst contribution above ~24um, with star formation rates SFR~2000Msun/yr, central dust masses log(Mdust/Msun)~9+-0.5 and hence central gas masses log(Mgas/Msun)~10.7. There is very little room for an AGN contribution. From X-ray upper limits and the observed 24um flux, we derive a maximum 2-10keV X-ray luminosity of 1e44 erg/s for any putative AGN, even if they are heavily obscured. This in turn points to relatively small black holes with log(MBH/Msun)
description: 18 pages, 8 figures, 5 tables. Accepted for publication in MNRAS
Appendix S2 to Appendix S10 from A diversification relay race from Caribbean-Mesoamerica to the Andes: historical biogeography of Xylophanes hawkmoths
Creators: name: Li, Xuankun
name: Hamilton, Chris A.
name: Laurent, Ryan St
name: Ballesteros-Mejia, Liliana
name: Markee, Amanda
name: Haxaire, Jean
name: Rougerie, Rodolphe
name: Kitching, Ian J.
name: Kawahara, Akito Y.
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy

description: The regions of the Andes and Caribbean-Mesoamerica are both hypothesized to be the cradle for many Neotropical lineages, but few studies have fully investigated the dynamics and interactions between Neotropical bioregions. The New World hawkmoth genus Xylophanes is the most taxonomically diverse genus in the Sphingidae, and the highest endemism and richness in the Andes and Caribbean-Mesoamerica. We integrated phylogenomic and DNA barcode data and generated the first time-calibrated tree for this genus, covering 93.8% of the species diversity. We used event-based likelihood ancestral area estimation and biogeographic stochastic mapping to examine the speciation and dispersal dynamics of Xylophanes across bioregions. We also used trait-dependent diversification models to compare speciation and extinction rates of lineages associated with different bioregions. Our results indicate that Xylophanes originated in Caribbean-Mesoamerica in the Late Miocene, and immediately diverged into five major clades. The current species diversity and distribution of Xylophanes can be explained by two consecutive phases. In the first phase, the highest Xylophanes speciation and emigration rates occurred in the Caribbean-Mesoamerica, and the highest immigration rates occurred in the Andes, whereas in the second phase the highest immigration rates were found in Amazonia, and the Andes had the highest speciation and emigration rates.
Étale dévissage, descent and pushouts of stacks
Creators: name: Rydh, David
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14A20, 14F20, 18A30, 18F20

description: We show that the pushout of an étale morphism and an open immersion exists in the category of algebraic stacks and show that such pushouts behave similarly to the gluing of two open substacks. For example, quasi-coherent sheaves on the pushout can be described by a simple gluing procedure. We then outline a powerful dévissage method for representable étale morphisms using such pushouts. We also give a variant of the dévissage method for representable quasi-finite flat morphisms.
description: 34 pages; added more references; final version
Introdurre l'algebra in 3A media: una sperimentazione basata sulla conversione tra registri semiotici e il trattamento di rappresentazioni semiotiche
Creators: name: Del Monte, Romina
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2019

description: Con l’introduzione del nuovo Piano di Studio della scuola dell’obbligo ticinese (DECS, 2015), la capacità di esplicitare e argomentare in matematica riveste un ruolo centrale nei processi cognitivi. Apprendere la matematica è un fenomeno complesso: se è vero che la comprensione di un concetto passa attraverso la messa a sistema di sue diverse rappresentazioni, allora occorre da parte del docente una riflessione e uno sforzo per permettere allo studente, prima di tutto, di riconoscere queste diverse rappresentazioni. Di conseguenza, nelle pratiche didattiche è necessario lavorare sulla varietà delle rappresentazioni semiotiche con il fine di collegarle fra loro e mettere in luce i processi di conversione e trattamento. Questo lavoro di ricerca si propone di esplicitare un esempio di percorso d’introduzione all’algebra che fornisca ad allievi di 3a media di un corso base in matematica alcuni strumenti per tradurre dal linguaggio naturale a quello matematico e viceversa. Nello specifico l’obiettivo a medio-lungo termine è che essi sviluppino quelle competenze di linguaggio e procedurali che consentano loro di comprendere un problema verbale, matematizzarlo in termini aritmetico-algebrici e risolverlo. Sulla base dei dati raccolti e dell’analisi qualitativa dei protocolli verrà valutata l’efficacia degli interventi proposti e come gli allievi siano riusciti a spostare l’attenzione dalla ricerca del risultato alle operazioni e alla rappresentazione semiotica. La presente tesi di Master si propone da un lato di evidenziare alcune pratiche didattiche che favoriscono un approccio accorto all’avvio e allo sviluppo del pensiero algebrico nella scuola media, dall’altro di essere un contributo alla riflessione in vista della progettazione didattica dei docenti in ambito matematico. Relatore: Michele Canducci. Materia: Matematica.
Visualizing Automatic Speech Recognition -- Means for a Better Understanding?
Creators: name: Markert, Karla
name: Parracone, Romain
name: Kulakov, Mykhailo
name: Sperl, Philip
name: Kao, Ching-Yu
name: Böttinger, Konstantin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Human-Computer Interaction (cs.HC)
subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Automatic speech recognition (ASR) is improving ever more at mimicking human speech processing. The functioning of ASR, however, remains to a large extent obfuscated by the complex structure of the deep neural networks (DNNs) they are based on. In this paper, we show how so-called attribution methods, that we import from image recognition and suitably adapt to handle audio data, can help to clarify the working of ASR. Taking DeepSpeech, an end-to-end model for ASR, as a case study, we show how these techniques help to visualize which features of the input are the most influential in determining the output. We focus on three visualization techniques: Layer-wise Relevance Propagation (LRP), Saliency Maps, and Shapley Additive Explanations (SHAP). We compare these methods and discuss potential further applications, such as in the detection of adversarial examples.
description: Proc. 2021 ISCA Symposium on Security and Privacy in Speech Communication
Effective temperatures of a heated Brownian particle
Creators: name: Joly, Laurent
name: Merabia, Samy
name: Barrat, Jean-Louis
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate various possible definitions of an effective temperature for a particularly simple nonequilibrium stationary system, namely a heated Brownian particle suspended in a fluid. The effective temperature based on the fluctuation dissipation ratio depends on the time scale under consideration, so that a simple Langevin description of the heated particle is impossible. The short and long time limits of this effective temperature are shown to be consistent with the temperatures estimated from the kinetic energy and Einstein relation, respectively. The fluctuation theorem provides still another definition of the temperature, which is shown to coincide with the short time value of the fluctuation dissipation ratio.