cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Stochastic dynamics for a single vibrational mode in molecular junctions
Creators: name: Nocera, A.
name: Perroni, C. A.
name: Ramaglia, V. Marigliano
name: Cataudella, V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a very accurate computational scheme for the dynamics of a classical oscillator coupled to a molecular junction driven by a finite bias, including the finite mass effect. We focus on two minimal models for the molecular junction: Anderson-Holstein (AH) and two-site Su-Schrieffer-Heeger (SSH) models. As concerns the oscillator dynamics, we are able to recover a Langevin equation confirming what found by other authors with different approaches and assessing that quantum effects come from the electronic subsystem only. Solving numerically the stochastic equation, we study the position and velocity distribution probabilities of the oscillator and the electronic transport properties at arbitrary values of electron-oscillator interaction, gate and bias voltages. The range of validity of the adiabatic approximation is established in a systematic way by analyzing the behaviour of the kinetic energy of the oscillator. Due to the dynamical fluctuations, at intermediate bias voltages, the velocity distributions deviate from a gaussian shape and the average kinetic energy shows a non monotonic behaviour. In this same regime of parameters, the dynamical effects favour the conduction far from electronic resonances where small currents are observed in the infinite mass approximation. These effects are enhanced in the two-site SSH model due to the presence of the intermolecular hopping t. Remarkably, for sufficiently large hopping with respect to tunneling on the molecule, small interaction strengths and at intermediate bias (non gaussian regime), we point out a correspondence between the minima of the kinetic energy and the maxima of the dynamical conductance.
description: 19 pages, 16 figures, submitted to Physical Review B
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¸ÑÐºÑÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¸Ð½ÑÐµÐ»Ð»ÐµÐºÑÐ° Ð´Ð»Ñ Ð¸Ð³ÑÑ Ð² Snake
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: Developing artificial intelligence for Snake game
Creators: name: Ð Ð°ÑÐ¼Ð°ÑÑÐ»Ð»Ð¸Ð½, ÐÐ»ÐµÐºÑÐ°Ð½Ð´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: Ð¼Ð°ÑÐ¸Ð½Ð½Ð¾Ðµ Ð¾Ð±ÑÑÐµÐ½Ð¸Ðµ
Ð½ÐµÐ¹ÑÐ¾Ð½Ð½ÑÐµ ÑÐµÑÐ¸
Ð·Ð¼ÐµÐ¹ÐºÐ°
Ð¾Ð±ÑÑÐµÐ½Ð¸Ðµ Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸ÐµÐ¼ Ð¿Ð¾Ð´ÐºÑÐµÐ¿Ð»ÐµÐ½Ð¸Ñ
Deep Q-Learning
machine learning
neural networks
snake
reinforcement learning

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð·Ñ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð¾Ð² Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ Ð½ÐµÐ¹ÑÐ¾Ð½Ð½ÑÑ ÑÐµÑÐµÐ¹, ÐºÐ¾ÑÐ¾ÑÑÐµ Ð¿ÑÐ¸Ð½Ð¸Ð¼Ð°ÑÑ ÑÐµÑÐµÐ½Ð¸Ñ Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ Ð½ÐµÐ¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð½Ð¾ÑÑÐ¸, Ð° ÑÐ°ÐºÐ¶Ðµ Ð²ÑÐ±Ð¾ÑÑ Ð¸ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð° Ð´Ð»Ñ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ Ð½ÐµÐ¹ÑÐ¾ÑÐµÑÐ¸ Ð´Ð»Ñ Ð¸Ð³ÑÑ Ð² Snake. Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ: ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¸ÑÐºÑÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¸Ð½ÑÐµÐ»Ð»ÐµÐºÑÐ°, ÐºÐ¾ÑÐ¾ÑÑÐ¹ Ð±ÑÐ´ÐµÑ Ð¸Ð³ÑÐ°ÑÑ Ð² Ð¸Ð³ÑÑ Snake. ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ Ð¿ÑÐ¾Ð´ÐµÐ»Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: ÐÐ±Ð·Ð¾Ñ ÑÐµÐ¼Ñ, Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ðµ Ð¸Ð³ÑÑ Snake, Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ðµ Ð½ÐµÐ¹ÑÐ¾Ð½Ð½ÑÑ ÑÐµÑÐµÐ¹. ÐÐ¿Ð¸ÑÐ°Ð½Ð¸Ðµ ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ñ ÑÐ¿Ð¾ÑÐ¾Ð±Ð¾Ð² Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ Ð½ÐµÐ¹ÑÐ¾Ð½Ð½ÑÑ ÑÐµÑÐµÐ¹. Ð ÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ñ Ð²ÑÐ±ÑÐ°Ð½Ð½Ð¾Ð³Ð¾ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð°, Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ðµ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸. ÐÐ½Ð°Ð»Ð¸Ð· Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½Ð¾Ð¹ Ð½ÐµÐ¹ÑÐ¾Ð½Ð½Ð¾Ð¹ ÑÐµÑÐ¸. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð±ÑÐ»Ð° Ð¿Ð¾Ð»ÑÑÐµÐ½Ð° Ð½ÐµÐ¹ÑÐ¾ÑÐµÑÑ Ð¾Ð±ÑÑÐµÐ½Ð½Ð°Ñ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð° Deep Q-Learning (DQN), ÐºÐ¾ÑÐ¾ÑÐ°Ñ Ð´Ð¾Ð²Ð¾Ð»ÑÐ½Ð¾ ÑÐ¾ÑÐ¾ÑÐ¾ Ð¸Ð³ÑÐ°ÐµÑ Ð² Ð¸Ð³ÑÑ Snake.
description: This work is devoted to the research and analysis of algorithms for training neural networks that make decisions under uncertainty, and the choice and implementation of the optimal algorithm for training neural networks for the game in Snake.Purpose of work: the development of artificial intelligence, which will play the game Snake. The tasks that were solved in the course of the work: Overview of the topic, description of the game Snake, description of artificial neural networks. Description of the existing ways to train neural networks. Implementation of the selected algorithm, description of the implementation. Analysis of the resulting neural network. As a result we have got a neural network trained on the basis of the Deep Q-Learning (DQN) algorithm, which plays the game Snake quite well.
The Role Of Cupping Therapy As A Complementary Therapy on The Pulmonary Functions And Quality Of Life Of Asthmatic Children
Creators: name: Shaban, Tamer
name: Daif, Magdy Karam El-Deen Aly
name: Mahmoud, Rehab Abd El kader
Publisher: name: figshare
Year: 2017
Subjects: subject: 110499 Complementary and Alternative Medicine not elsewhere classified
subject: FOS: Clinical medicine
subject: 111403 Paediatrics
subject: 110203 Respiratory Diseases
subject: 110404 Traditional Chinese Medicine and Treatments

description: Aim: The aim of this study was to evaluate the effectiveness of flash cupping therapy as a complementary therapy for the treatment of asthmatic children and adolescent in a randomized controlled trial.Methods: Sixty out-patients [8-15 years] with confirmed mild persistent asthma according to criteria of global strategy for asthma management and prevention were randomly assigned either to a treatment group [flash cuppingtherapy + standard asthma medications] [n=30] or a control group[standard asthma medications] [n=30]. Pediatric Quality of Life Questionnaire and Pulmonary functions [FEV1, FVC, FEV1/FVC Ratio, FEF 25%-75%] weremeasured before and after the treatment for both groups.Results: Improvement in all measured pulmonary function tests [FEV1, FVC, FEV1/FVC and FEF 25%- 75%], improvement in most of clinical symptoms, and improvement of pediatric quality of life questionnaire were found to besignificantly higher in treatment group than in control group [p-value < 0.05].Conclusion: Cupping Therapy may be an effective complementary treatment for mild asthmatic children and has a significant improvement effect on the pulmonary functions and quality of life of asthmatic children. A large scale randomized controlled trial is recommended to confirm these results.
A note on geometric constructions of bi-invariant orderings
Creators: name: Ito, Tetsuya
Publisher: name: arXiv
Year: 2010
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F60, 55P62

description: We construct bi-invariant total orderings of residually torsion-free nilpotent groups by using Chen's iterated integrals. This construction can be seen as a generalization of the Magnus ordering of the free groups, and equivalent to the classical construction which uses an iteration of central extensions. Our geometric construction provides a connection between bi-orderings and the rational homotopy theory.
description: 10 pages, no figures; add more explanations for the relationship to the classical construction
title: Ð¢ÑÑÐ´Ð½Ð¾ÑÑÐ¸ Ð² Ð¸Ð·ÑÑÐµÐ½Ð¸Ð¸ Ð³ÑÐ°Ð¼Ð¼Ð°ÑÐ¸ÐºÐ¸ Ð² Ð¿ÑÐµÐ¿Ð¾Ð´Ð°Ð²Ð°Ð½Ð¸Ð¸ ÑÑÑÑÐºÐ¾Ð³Ð¾ ÑÐ·ÑÐºÐ° ÐºÐ°Ðº Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½Ð¾Ð³Ð¾ (Ð½Ð° ÑÑÐ¾Ð²Ð½Ðµ Ð1)
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: Difficulties in learning grammar in teaching Russian as a foreign language (level B1)
Creators: name: Ð®Ð¶Ð°ÐºÐ¾Ð²Ð°, ÐÐ»Ð¸Ñ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: 2022
Subjects: ÑÑÑÑÐºÐ¸Ð¹ ÑÐ·ÑÐº ÐºÐ°Ðº Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½ÑÐ¹
Ð³ÑÐ°Ð¼Ð¼Ð°ÑÐ¸ÐºÐ°
Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ° Ð¿ÑÐµÐ¿Ð¾Ð´Ð°Ð²Ð°Ð½Ð¸Ñ Ð³ÑÐ°Ð¼Ð¼Ð°ÑÐ¸ÐºÐ¸
Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ñ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ
Ð³ÑÐ°Ð¼Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÑÑÐ´Ð½Ð¾ÑÑÐ¸
Russian as a foreign language
grammar
methology of teaching grammar
teaching principles
grammatical difficulties

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð²ÑÑÐ²Ð»ÐµÐ½Ð¸Ñ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹ Ð¿ÑÐµÐ¿Ð¾Ð´Ð°Ð²Ð°Ð½Ð¸Ñ Ð³ÑÐ°Ð¼Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð°ÑÐ¿ÐµÐºÑÐ° Ð² Ð¾Ð±ÑÑÐµÐ½Ð¸Ð¸ ÑÑÑÑÐºÐ¾Ð¼Ñ ÑÐ·ÑÐºÑ ÐºÐ°Ðº Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½Ð¾Ð¼Ñ. Ð ÑÐ¾Ð´Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð±ÑÐ»Ð¸ Ð¸Ð·ÑÑÐµÐ½Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ¸Ñ Ð² Ð¿ÑÐµÐ¿Ð¾Ð´Ð°Ð²Ð°Ð½Ð¸Ð¸ Ð³ÑÐ°Ð¼Ð¼Ð°ÑÐ¸ÐºÐ¸ Ð½Ð¾ÑÐ¸ÑÐµÐ»ÑÐ¼ ÑÐ·ÑÐºÐ° Ð¸ Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½ÑÐ¼ ÑÑÐ°ÑÐ¸Ð¼ÑÑ; Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð¾Ð¿ÑÐ¾Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð²-Ð¸Ð½Ð¾ÑÑÑÐ°Ð½ÑÐµÐ² Ñ ÑÐµÐ»ÑÑ Ð²ÑÑÐ²Ð¸ÑÑ ÑÑÑÐ´Ð½Ð¾ÑÑÐ¸ Ð² Ð¸Ð·ÑÑÐµÐ½Ð¸Ð¸ ÑÑÑÑÐºÐ¾Ð¹ Ð³ÑÐ°Ð¼Ð¼Ð°ÑÐ¸ÐºÐ¸, Ñ ÐºÐ¾ÑÐ¾ÑÑÐ¼Ð¸ Ð¾Ð½Ð¸ ÑÑÐ°Ð»ÐºÐ¸Ð²Ð°ÑÑÑÑ Ð² Ð¿ÑÐ¾ÑÐµÑÑÐµ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ; Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ñ ÑÑÐµÐ±Ð½ÑÐµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ñ Ð¿Ð¾ ÑÑÑÑÐºÐ¾Ð¼Ñ ÑÐ·ÑÐºÑ ÐºÐ°Ðº Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½Ð¾Ð¼Ñ Ð´Ð»Ñ ÑÑÐ¾Ð²Ð½Ñ B1 Ñ ÑÐ¾ÑÐºÐ¸ Ð·ÑÐµÐ½Ð¸Ñ Ð¾ÑÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ð½ÑÑ Ð³ÑÐ°Ð¼Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐµÐ¼. Ð ÑÐ°Ð¼ÐºÐ°Ñ Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð±ÑÐ» ÑÐ¾ÑÑÐ°Ð²Ð»ÐµÐ½ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑ ÑÐ¿ÑÐ°Ð¶Ð½ÐµÐ½Ð¸Ð¹, Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð½ÑÐ¹ Ð½Ð° Ð¾ÑÑÐ°Ð±Ð¾ÑÐºÑ Ð³Ð»Ð°Ð³Ð¾Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ.
description: The work is devoted to the essence of teaching the grammatical aspect of Russian as a foreign language. During the research the differences of grammar teaching to native speakers and foreign students were studied; a survey of foreign students was conducted in order to identify the difficulties in learning Russian grammar that they face in the learning process; the analysis of Russian as a foreign language textbooks for B1 level in terms of working out the problematic grammatical topics. The set of grammar exercises aimed at practicing verbal inflection was developed.
title: T1 mapping in diastolic or systolic phase?
Creators: name: Broumpoulis, Giorgos
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Cardiac
subject: MR
subject: Imaging sequences
subject: Artifacts
subject: Biological effects
subject: Tissue characterisation

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: The purpose of this study was to access the effect of systolic phase in the myocardial T1 relaxation time. Measuring T1 values of myocardium (displayed in a parametrical map: T1 mapping) has become vital in Cardiac MR examinations of multiple...
Counterterms vs. Dualities
Creators: name: Bossard, Guillaume
name: Nicolai, Hermann
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate and clarify the mutual compatibility of the higher order corrections arising in supergravity and string theory effective actions and the non-linear duality symmetries of these theories. Starting from a conventional tree level action leading to duality invariant equations of motion, we show how to accommodate duality invariant counterterms given as functionals of both electric and magnetic fields in a perturbative expansion, and to deduce from them a non-polynomial bona fide action satisfying the Gaillard-Zumino constraint. There exists a corresponding consistency constraint in the non-covariant Henneaux-Teitelboim formalism which ensures that one can always restore diffeomorphism invariance by perturbatively solving this functional identity. We illustrate how this procedure works for the R^2 \nabla F \nabla F and F^4 counterterms in Maxwell theory.
description: 15 pages
HEALTH INFORMATION & COMMUNICATION TECHNOLOGY MODELS FOR CHANGING CONSUMER BEHAVIOR
Creators: name: Khan, Anwar
Publisher: name: figshare
Year: 2017
Subjects: subject: 111711 Health Information Systems (incl. Surveillance)
subject: FOS: Health sciences
subject: 150502 Marketing Communications
subject: FOS: Economics and business
subject: 100599 Communications Technologies not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Health, communicationHealth; communication; technology; consumer behavior; Consumer Behavior, Health Care, Health Information Technology
title: Cystic Fibrosis - Is Lung Ultrasound Useful for Pathology?
Creators: name: Stoicescu, Emil-Robert
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Lung
subject: Respiratory system
subject: Thorax
subject: CT-High Resolution
subject: Elastography
subject: Ultrasound
subject: Cost-effectiveness
subject: Diagnostic procedure
subject: Outcomes analysis
subject: Education and training
subject: Genetic defects
subject: Image verification

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Cystic fibrosis is a complex pathology characterized by a lesion polymorphism, with different evolution and severe complications, such as chronic respiratory failure, diabetes, malnutrition, liver failure and pancreatitis (1). CT-scan pathology...
Unfolding the Sulcus
Creators: name: Hohlfeld, Evan
name: Mahadevan, L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Sulci are localized furrows on the surface of soft materials that form by a compression-induced instability. We unfold this instability by breaking its natural scale and translation invariance, and compute a limiting bifurcation diagram for sulcfication showing that it is a scale-free, sub-critical {\em nonlinear} instability. In contrast with classical nucleation, sulcification is {\em continuous}, occurs in purely elastic continua and is structurally stable in the limit of vanishing surface energy. During loading, a sulcus nucleates at a point with an upper critical strain and an essential singularity in the linearized spectrum. On unloading, it quasi-statically shrinks to a point with a lower critical strain, explained by breaking of scale symmetry. At intermediate strains the system is linearly stable but nonlinearly unstable with {\em no} energy barrier. Simple experiments confirm the existence of these two critical strains.
description: Main text with supporting appendix. Revised to agree with published version. New result in the Supplementary Information
Nucleation mechanism for the direct graphite-to-diamond phase transition
Creators: name: Khaliullin, Rustam Z.
name: Eshet, Hagai
name: Kuhne, Thomas D.
name: Behler, Jorg
name: Parrinello, Michele
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Graphite and diamond have comparable free energies, yet forming diamond from graphite is far from easy. In the absence of a catalyst, pressures that are significantly higher than the equilibrium coexistence pressures are required to induce the graphite-to-diamond transition. Furthermore, the formation of the metastable hexagonal polymorph of diamond instead of the more stable cubic diamond is favored at lower temperatures. The concerted mechanism suggested in previous theoretical studies cannot explain these phenomena. Using an ab initio quality neural-network potential we performed a large-scale study of the graphite-to-diamond transition assuming that it occurs via nucleation. The nucleation mechanism accounts for the observed phenomenology and reveals its microscopic origins. We demonstrated that the large lattice distortions that accompany the formation of the diamond nuclei inhibit the phase transition at low pressure and direct it towards the hexagonal diamond phase at higher pressure. The nucleation mechanism proposed in this work is an important step towards a better understanding of structural transformations in a wide range of complex systems such as amorphous carbon and carbon nanomaterials.
title: 4D flow MRI in Hypertrophic Cardiomyopathy
Creators: name: Jurkevičiūtė, Greta
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Arteries / Aorta
subject: Cardiac
subject: Cardiovascular system
subject: MR
subject: MR-Angiography
subject: Ablation procedures
subject: Imaging sequences
subject: Haemodynamics / Flow dynamics

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To review the use of 4D flow MRI for evaluation of Hypertrophic...
Interpreting fossils of fly-speck fungi using comparative anatomy and phylogenetics
Creators: name: Le Renard, Ludovic
Publisher: name: University of British Columbia
Year: 2020

description: Critical interpretations of fossil fungi combined with phylogenies of living species have the potential to reveal patterns of character evolution and to inform estimates of the geological timing of fungal radiations. Some of the best fungal fossils are of thyriothecia, formed by fly-speck fungi. A thyriothecium is a minute fungal sporulating structure, with a flat scutellum and a shield-like upper surface. Scutella have distinctive cell patterns that are formed by a sequence of hyphal branching and septation. However, for thyriothecial species, phylogenies from DNA sequence data and illustrations of scutella remain have been limited. In Chapter 2, I present a comprehensive phylogeny of thyriothecial Dothideomycetes based on 4251 nucelotides for 320 taxa, contributing new nuclear rDNA sequence data for 14 thyriothecial fungi. I code character states for taxa including 60 thyriothecial species and then estimate ancestral character states using the Bayesian posterior distribution of topologies from my dataset to account for phylogenetic uncertainty. Radiate thyriothecia are only found in Class Dothideomycetes, where they seem to have evolved independently at least three times. In Chapters 3, 4 and 5, I describe new species of Cretaceous scutellum fossils. Scutella can be abundant on fossilized leaf cuticles and are well documented in deposits of Eocene age and younger (<45 Ma). To better sample earlier fossils, I studied thyriothecia from clays from Early Cretaceous Dutch Gap Canal beds (dated 125–113 Ma). I dissolved the inorganic matrix and selected organic, fossilized fragments of plant cuticle showing signs of fungal colonization. Of hundreds of fungal reproductive structures on 281 cuticle fragments, I describe thyriothecia that were preserved well enough to be coded for their characters. Chapter 3 describes Protographum luttrellii, a fossil that shares characters with extant Aulographaceae. Chapters 4 and 5 describe thyriothecial taxa with character combinations not seen in extant species. The most common Cretaceous thyriothecia differ substantially from their extant relatives. My work demonstrates that it is possible to extend fossil evidence of lineages of Dothideomycetes further back in time, by surveying fungi on fossilized plant cuticles and integrating comparative anatomy and phylogeny in their interpretation.
Off-shell superconformal nonlinear sigma-models in three dimensions
Creators: name: Kuzenko, Sergei M.
name: Park, Jeong-Hyuck
name: Tartaglino-Mazzucchelli, Gabriele
name: von Unge, Rikard
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop superspace techniques to construct general off-shell N=1,2,3,4 superconformal sigma-models in three space-time dimensions. The most general N=3 and N=4 superconformal sigma-models are constructed in terms of N=2 chiral superfields. Several superspace proofs of the folklore statement that N=3 supersymmetry implies N=4 are presented both in the on-shell and off-shell settings. We also elaborate on (super)twistor realisations for (super)manifolds on which the three-dimensional N-extended superconformal groups act transitively and which include Minkowski space as a subspace.
description: 67 pages; V2: typos corrected, one reference added, version to appear on JHEP
развитие частной энергетики статья.pdf
Creators: name: Grishin, Sergey
Publisher: name: figshare
Year: 2017
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: 220299 History and Philosophy of Specific Fields not elsewhere classified

description: Возникновение энергетики в Саратовской губернии было связано с общими процессами развития экономики страны на рубеже конца XIX - начала ХХ вв. Формирование энергетики в регионе активно проходило в точках роста, которые представляли рыночно эффективные отрасли промышленности. Первые электрические станции в городах только благодаря частной инициативе. Автором выделены два периода в Во-вторых , первые десятки XX в., Когда многие промышленники интуитивно начинают осознавать причинно-следственную связь между потреблением энергии и экономическим ростом.В статье впервые вводить в научный оборот архивные материалы по развитие энергетики.
title: The added value of Ultrafast Dynamic Contrast-enhanced MRI sequences in breast cancer preoperative staging
Creators: name: Miranda Martínez, Paulina
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Breast
subject: MR
subject: Comparative studies
subject: Diagnostic procedure
subject: Cancer
subject: Neoplasia

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Breast MRI is a technique indicated mainly for cancer staging, screening for breast cancer in women at increased risk, and evaluation of response to neoadjuvant chemotherapy. Unlike traditional techniques (US and mammography), dynamic...
Counting the non-trivial zeroes, using extended Riemann Siegel function analogues, for 5-periodic Dirichlet Series which obey functional equations
Creators: name: Martin, John
Publisher: name: figshare
Year: 2017
Subjects: subject: 10199 Pure Mathematics not elsewhere classified
subject: FOS: Mathematics

description: Argument principle calculations of zeroes using extended Riemann Siegel function analogues are investigated
for the Davenport-Heilbronn function and another 5-periodic Dirichlet series. Both these 5-periodic Dirichlet
series functions have previously been reported as possessing functional equations and not being expressible
as Euler products. Informative counts of the non-trivial zeroes (including off the critical line) are obtained for various
s = σ + i ∗ t lines in the positive quadrant of the complex plane.
Minimal Scales from an Extended Hilbert Space
Creators: name: Kober, Martin
name: Nicolini, Piero
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider an extension of the conventional quantum Heisenberg algebra, assuming that coordinates as well as momenta fulfil nontrivial commutation relations. As a consequence, a minimal length and a minimal mass scale are implemented. Our commutators do not depend on positions and momenta and we provide an extension of the coordinate coherent state approach to Noncommutative Geometry. We explore, as toy model, the corresponding quantum field theory in a (2+1)-dimensional spacetime. Then we investigate the more realistic case of a (3+1)-dimensional spacetime, foliated into noncommutative planes. As a result, we obtain propagators, which are finite in the ultraviolet as well as the infrared regime.
description: 16 pages, version which matches that published on CQG
title: ÐÐ½ÐµÐ´ÑÐµÐ½Ð¸Ðµ TNG ÑÐ¸ÑÑÐµÐ¼Ñ Ð² ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ ÑÑÐµÑÑ ÑÑÐ»ÑÐ³
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: The implementation of TNG system in the company of the services area
Creators: name: ÐÑÑÐ°Ð½ÐºÐ¾Ð²Ð°, ÐÐ¸ÐºÑÐ¾ÑÐ¸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: 2019
Subjects: ÑÑÐµÑÐ° ÑÑÐ»ÑÐ³
ÑÐ¸ÑÐ½ÐµÑ-ÑÑÐ»ÑÐ³Ð¸
Ð¾ÑÐµÐ»Ñ
ÑÐ¿Ð¾ÑÑÐ¸Ð²Ð½ÑÐ¹ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑ
Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ðµ
Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð°
ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ°Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ
tng
bpmn 2.0
sphere of services
fitness services
hotel
sports complex
implementation
information system
economic efficiency

description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ ÑÑÑÑÐºÑÑÑÐ½Ð¾Ðµ Ð¿Ð¾Ð´ÑÐ°Ð·Ð´ÐµÐ»ÐµÐ½Ð¸Ðµ Ð¼ÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð¾Ð³Ð¾ Ð´ÐµÐ»Ð¾Ð²Ð¾Ð³Ð¾ ÑÐµÐ½ÑÑÐ° Â«ÐÐµÐ¿ÑÑÐ½Â». ÐÐ°Ð½Ð½Ð¾Ðµ ÑÑÑÑÐºÑÑÑÐ½Ð¾Ðµ Ð¿Ð¾Ð´ÑÐ°Ð·Ð´ÐµÐ»ÐµÐ½Ð¸Ðµ Ð·Ð°Ð½Ð¸Ð¼Ð°ÐµÑÑÑ Ð¿ÑÐµÐ´Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð¸ÐµÐ¼ ÑÐ¿Ð¾ÑÑÐ¸Ð²Ð½Ð¾-Ð¾Ð·Ð´Ð¾ÑÐ¾Ð²Ð¸ÑÐµÐ»ÑÐ½ÑÑ ÑÑÐ»ÑÐ³. 
Ð¦ÐµÐ»ÑÑ Ð±ÑÐ»Ð¾ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ðµ ÐºÐ°ÑÐµÑÑÐ²Ð° ÑÐ°Ð±Ð¾ÑÑ Ð·Ð° ÑÑÑÑ Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ñ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ. 
Ð ÑÐ°Ð¼ÐºÐ°Ñ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐµÐ»Ð¸ Ð±ÑÐ»Ð¸ Ð¿Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ñ Ð·Ð°Ð´Ð°ÑÐ¸ Ð¿Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ñ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸, Ð²ÑÑÐ²Ð»ÐµÐ½Ð¸Ñ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼, Ð²ÑÐ±Ð¾ÑÑ ÑÐµÑÐµÐ½Ð¸Ñ, ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐµ Ð¿Ð»Ð°Ð½Ð° Ð¿ÑÐ¾ÐµÐºÑÐ° Ð¸ ÐµÐ³Ð¾ ÐºÐ¾Ð¼Ð¼ÐµÑÑÐµÑÐºÐ¾Ð¹ Ð¾ÑÐµÐ½ÐºÐµ.
Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð¼ ÐÐÐ  ÑÐ²Ð»ÑÐµÑÑÑ Ð²Ð½ÐµÐ´ÑÑÐ½Ð½Ð°Ñ TNG ÑÐ¸ÑÑÐµÐ¼Ð°, ÐºÐ¾ÑÐ¾ÑÐ°Ñ Ð¿Ð¾Ð·Ð²Ð¾Ð»Ð¸Ð»Ð° Ð¾Ð±ÑÐµÐ´Ð¸Ð½Ð¸ÑÑ ÑÐ°Ð±Ð¾ÑÑ ÑÐ¿Ð¾ÑÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ° Ð² ÐµÐ´Ð¸Ð½ÑÐ¹ ÑÐ¸ÐºÐ» ÑÑÑÑÐ° Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ, Ð¿Ð¾Ð²ÑÑÐ¸Ð»Ð° ÐºÐ°ÑÐµÑÑÐ²Ð¾ Ð¾ÐºÐ°Ð·ÑÐ²Ð°ÐµÐ¼ÑÑ ÑÑÐ»ÑÐ³, Ð¿Ð¾Ð·Ð²Ð¾Ð»Ð¸Ð»Ð° Ð¿ÑÐµÐ´Ð¾ÑÑÐ°Ð²Ð»ÑÑÑ ÐºÐ»Ð¸ÐµÐ½ÑÐ°Ð¼ ÑÐ½Ð¸ÐºÐ°Ð»ÑÐ½ÑÐµ ÑÐ¾ÑÐ³Ð¾Ð²ÑÐµ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð¸ Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð² Ð±ÑÐ»Ð° Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ð° ÐºÐ¾Ð¼Ð¼ÐµÑÑÐµÑÐºÐ°Ñ Ð¾ÑÐµÐ½ÐºÐ° ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸.
description: The object of research is the structural division of the international business center "Neptune". This structural division is engaged in the provision of sports and recreational services.
The goal was to improve the quality of work through the implementation of an information system.
As part of this goal, tasks were set for analyzing the company's activities, identifying problems, choosing a solution, developing a project plan and its commercial evaluation.
The result of the final qualifying work is the implemented TNG system, which allowed combining the work of the sports complex into a single enterprise accounting cycle, improved the quality of the services provided, allowed to provide customers with unique sales offers. Based on the obtained and analyzed results, a commercial performance evaluation was made.
Zero energy Majorana modes in spin ladders and a possible realization of the Kitaev model
Creators: name: Nersesyan, A. A.
name: Tsvelik, A. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that in double-chain Mott insulators (ladders), disordered alternating ionic potentials may locally destroy coherence of magnetic excitations and lead to the appearance of spontaneously dimerized islands inside the Haldane spin-liquid phase. We argue that a boundary between the dimerized and Haldane phases of a spin-1/2 ladder supports a localized zero-energy Majorana fermion mode. Based on these findings we suggest a realization of a generalized Kitaev model where Majorana fermions can propagate in more than one dimension.
description: 5 pages, 2 figures
title: Inter- and intra-rater variability of manual and Artificial Intelligence (AI)-based 2D measurements of lymph nodes in CT.
Creators: name: Iuga, Andra-Iza
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Artificial Intelligence
subject: Lymph nodes
subject: Thorax
subject: CT
subject: Computer Applications-Detection, diagnosis
subject: Cancer

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Accurate and reliable measurement of findings in computed tomography (CT) scans is crucial for the precise determination of the extent of cancer at diagnosis and during follow-up examinations, which in turn has a direct impact on therapeutic...
title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¸Ð¼ÐµÑÐ½Ð¾Ð³Ð¾ Ð¿Ð¾Ð³Ð»Ð¾ÑÐµÐ½Ð¸Ñ ÑÐ²ÐµÑÐ° Ð² ÐºÐ²Ð°Ð½ÑÐ¾Ð²ÑÑ ÑÐ¼ p-GaAs/AlGaAs
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: Investigation of impurity absorption of light in quantum wells p-GaAs/AlGaAs
Creators: name: ÐÑÐ°Ñ, Ð¡ÐµÑÐ³ÐµÐ¹
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: ÐºÐ²Ð°Ð½ÑÐ¾Ð²ÑÐµ ÑÐ¼Ñ
Ð¸Ð½ÑÑÐ°ÐºÑÐ°ÑÐ½Ð¾Ðµ Ð¸Ð·Ð»ÑÑÐµÐ½Ð¸Ðµ
Ð¿Ð¾Ð³Ð»Ð¾ÑÐµÐ½Ð¸Ðµ
Ð¿ÑÐ¸Ð¼ÐµÑÐ½ÑÐµ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ñ
Ð´ÑÑÐ¾ÑÐ½ÑÐµ Ð¿ÐµÑÐµÑ Ð¾Ð´Ñ
ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ¿ÐµÐºÑÑ
quantum wells
infrared emission
absorption
energy spectrum
hole transitions
impurity states

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¸Ð¼ÐµÑÐ½Ð¾Ð³Ð¾ Ð¿Ð¾Ð³Ð»Ð¾ÑÐµÐ½Ð¸Ñ Ð² Ð½Ð°Ð½Ð¾ÑÑÑÑÐºÑÑÑÐ°Ñ Ñ ÐºÐ²Ð°Ð½ÑÐ¾Ð²ÑÐ¼Ð¸ ÑÐ¼Ð°Ð¼Ð¸ p-GaAs/AlGaAs. ÐÑÐ» Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ ÑÐ°ÑÑÐµÑ Ð·Ð°ÐºÐ¾Ð½Ð° Ð´Ð¸ÑÐ¿ÐµÑÑÐ¸Ð¸ Ð´ÑÑÐ¾Ðº Ð¸ ÑÐ¿ÐµÐºÑÑÐ° Ð¿ÑÐ¸Ð¼ÐµÑÐ½Ð¾Ð³Ð¾ Ð¿Ð¾Ð³Ð»Ð¾ÑÐµÐ½Ð¸Ñ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¼ÐµÑÐ¾Ð´Ð° ÑÐ°Ð·Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ ÐºÑÐ»Ð¾Ð½Ð¾Ð²ÑÐºÐ¾Ð³Ð¾ Ð¿Ð¾ÑÐµÐ½ÑÐ¸Ð°Ð»Ð° Ð¿Ð¾ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸ÑÐ¼ Ð²Ð°Ð»ÐµÐ½ÑÐ½ÑÑ Ð¿Ð¾Ð´Ð·Ð¾Ð½. Ð¢ÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐ°ÑÑÐµÑÑ Ð±ÑÐ»Ð¸ ÑÑÐ°Ð²Ð½ÐµÐ½Ñ Ñ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐ¼Ð¸ ÑÐ¿ÐµÐºÑÑÐ°Ð¼Ð¸ Ð¿ÑÐ¸Ð¼ÐµÑÐ½Ð¾Ð³Ð¾ Ð¿Ð¾Ð³Ð»Ð¾ÑÐµÐ½Ð¸Ñ. ÐÐ¾ÐºÐ°Ð·Ð°Ð½Ð¾, ÑÑÐ¾ Ð¾ÑÐ½Ð¾Ð²Ð½Ð¾Ð¹ Ð²ÐºÐ»Ð°Ð´ Ð² ÑÐ¿ÐµÐºÑÑ Ð¿ÑÐ¸Ð¼ÐµÑÐ½Ð¾Ð³Ð¾ Ð¿Ð¾Ð³Ð»Ð¾ÑÐµÐ½Ð¸Ñ Ð²Ð½Ð¾ÑÑÑ Ð¿ÐµÑÐµÑÐ¾Ð´Ñ Ñ Ð¾ÑÐ½Ð¾Ð²Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¸Ð¼ÐµÑÐ½Ð¾Ð³Ð¾ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ñ Ð½Ð° Ð´ÐµÐ»Ð¾ÐºÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½ÑÐµ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ñ Ð²Ð°Ð»ÐµÐ½ÑÐ½ÑÑ Ð¿Ð¾Ð´Ð·Ð¾Ð½, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÐ¾ÑÐ¾Ð¸Ð¾Ð½Ð¸Ð·Ð°ÑÐ¸Ñ Ð¿ÑÐ¸Ð¼ÐµÑÐ¸. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð¼Ð¾Ð³ÑÑ Ð±ÑÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ñ Ð´Ð»Ñ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ Ð´Ð»Ð¸Ð½Ð½Ð¾Ð²Ð¾Ð»Ð½Ð¾Ð²ÑÑ Ð¸Ð½ÑÑÐ°ÐºÑÐ°ÑÐ½ÑÑ ÑÐ¾ÑÐ¾Ð´ÐµÑÐµÐºÑÐ¾ÑÐ¾Ð², Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¾ÑÐ¾Ð², Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ¾Ð² ÑÐ²ÐµÑÐ°, ÐºÐ¾Ð½ÑÑÐ¾Ð»Ð¸ÑÑÐµÐ¼ÑÑ Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¸Ð»Ð¸ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð½Ð°ÐºÐ°ÑÐºÐ¾Ð¹.
description: This work presents the results of impurity assisted absorption of p-GaAs/AlGaAs quantum wells. The band diagram of holes in quantum well and the absorption spectrum were calculated using the method of decomposition of the Coulomb potential in the states of holes in the valence subbands. The theoretical results were compared with the experimentally observed absorption spectra. It has been shown that the main contribution to the absorption is associated with transitions from the ground impurity state to the delocalized states of valence subbands and photoionization of the impurity. The results of this work can be used to create long-wavelength infrared photodetectors, modulators, light sources controlled by optical or electrical pumping.
The interpretation of gene coexpression in systems biology
Creators: name: Farahbod, Marjan
Publisher: name: University of British Columbia
Year: 2020

description: One of the key features of transcriptomic data is the similarity of expression patterns among groups of genes, referred to as coexpression. It has been shown that coexpressed genes tend to share similar functions. Based on this, a common assumption is that gene coexpression is a result of transcriptional regulation and therefore, regulatory relationships could be inferred from coexpression. However, success in inferring such relationships has been limited and there are questions about the source and interpretation of coexpression. Here I explore coexpression as an observed signal from the data, examine its source and assess its relevance for inferring regulatory relationships. In chapter 2 I studied differential coexpression, which refers to the alteration of gene coexpression between biological conditions. It is commonly assumed that differential coexpression can reveal rewiring of transcription regulatory networks, specifically among the genes that maintain their average expression level between the conditions. However, I show that to a large extent and in contrast to this common assumption, differential coexpression is more parsimoniously explained by changes in average expression levels. This finding demonstrates limitations for inference of regulatory rewiring from coexpression and poses questions for the underlying causes of the observed coexpression. In Chapter 3, I studied cellular composition variation among bulk tissue samples as a source of variance and the observed coexpression. I found that for most genes, differences in expression levels across cell types account for a large fraction of their variance and as a result genes with similar cell-type expression profiles appear to be coexpressed. Finally, I showed that this coexpression dominates the underlying intra-cell-type coexpression and also has the two prominent features of coexpression in the bulk tissue: reproducibility and biological relevance. Through my studies, I was able to provide an explanation for much of the observed coexpression in the bulk tissue and shed light on its resolution and limitation for inference of regulatory relationships. I also studied coexpression in single-nucleus data and show that some of the observed coexpression in it is likely to be attributed to the transcriptional regulation, which could be a subject for future studies.
Computing Isolated Singular Solutions of Polynomial Systems: Case of Breadth One
Creators: name: Li, Nan
name: Zhi, Lihong
Publisher: name: arXiv
Year: 2010
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: G.1.5; I.1.2
subject: 65H10, 68W25, 68W30, 14Q99, 74G35, 13P10

description: We present a symbolic-numeric method to refine an approximate isolated singular solution $\hat{\mathbf{x}}=(\hat{x}_{1}, ..., \hat{x}_{n})$ of a polynomial system $F=\{f_1, ..., f_n\}$ when the Jacobian matrix of $F$ evaluated at $\hat{\mathbf{x}}$ has corank one approximately. Our new approach is based on the regularized Newton iteration and the computation of approximate Max Noether conditions satisfied at the approximate singular solution. The size of matrices involved in our algorithm is bounded by $n \times n$. The algorithm converges quadratically if $\hat{\xx}$ is close to the isolated exact singular solution.
title: MRI-guided thoraco-abdominal percutaneous needle biopsy: our initial experience
Creators: name: Polidori, Tiziano
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Interventional non-vascular
subject: MR
subject: Biopsy
subject: Education and training

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: In recent years, MRI guidance has been applied for a larger range of thoraco-abdominal lesions, such as kidney tumors, mediastinal masses, hepatic suspected malignant lesions. The aim of this study is to describe the technique and to report our...
Detection of treatment effects by covariate-adjusted expected shortfall
Creators: name: He, Xuming
name: Hsu, Ya-Hui
name: Hu, Mingxiu
Publisher: name: arXiv
Year: 2011
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: The statistical tests that are commonly used for detecting mean or median treatment effects suffer from low power when the two distribution functions differ only in the upper (or lower) tail, as in the assessment of the Total Sharp Score (TSS) under different treatments for rheumatoid arthritis. In this article, we propose a more powerful test that detects treatment effects through the expected shortfalls. We show how the expected shortfall can be adjusted for covariates, and demonstrate that the proposed test can achieve a substantial sample size reduction over the conventional tests on the mean effects.
description: Published in at http://dx.doi.org/10.1214/10-AOAS347 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
title: Guide to improve your communication skills: the radiology report.
Creators: name: Gutierrez, Patricia Andrea
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Professional issues
subject: CT
subject: MR
subject: PACS
subject: Education
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: - To summarize the purpose of the radiology report according to the questions of the requester. - To define the sections and the characteristics of a typical radiology report. - To share some communication tricks that can improve the credibility of...
title: Rolling in the deep: Value of CT in the diagnosis and management of gallstone ileus
Creators: name: Hajdarpašić, Lejla
Publisher: name: European Congress of Radiology
Year: 2023
Subjects: subject: Abdomen
subject: Biliary Tract / Gallbladder
subject: Gastrointestinal tract
subject: CT
subject: Ultrasound
subject: Endoscopy
subject: Surgery
subject: Fistula
subject: Obstruction / Occlusion

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To define the CT diagnostic criteria for gallstone ileus and to assess whether the size of ectopic gallstones would influence the recommended course of...
Scaling of nascent nodes in extended s-wave superconductors
Creators: name: Fernandes, Rafael M.
name: Schmalian, Jörg
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We analyze the low-energy properties of superconductors near the onset of accidental nodes, i.e. zeroes of the gap function not enforced by symmetry. The existence of such nodes has been motivated by recent experiments suggesting a transition between nodeless and nodal superconductivity in iron-based compounds. We find that the low-temperature behavior of the penetration depth, the specific heat, and the NMR spin-lattice relaxation rate are determined by the scaling properties of a quantum critical point associated with the nascent nodes. Although the power-law exponents are insensitive to weak short-range electronic interactions, they can be significantly altered by the curvature of the Fermi surface or by the three-dimensional character of the gap. Consequently, the behavior of macroscopic quantities near the onset of nodes can be used as a criterion to determine the nodal structure of the gap function.
description: minor changes; version accepted for publication
Open-source respiratory health commons. 14 projects communities can adapt, repair, reproduce for low cost medical care (libre and open-source tech)
Creators: name: Balli, Fabio
name: Ibbotson, Richard
name: Chhabra, Vaibhav
name: Pimentel, Juan-Pablo
name: Suturin, Victor
name: Matringe, Mathilde
name: le Couedic, Clément
name: Kellner, Emmanuel
Publisher: name: Zenodo
Year: 2021
Subjects: respiratory health technology
open-source respiratory medical devices
freely reproducible respiratory equipment
pulmonology medical supply
community-based lung health material
open source hardware ventilator
chronic respiratory diseases
breathing
health commons
open science
free/libre and open-source software
innovative health technologies
low-resource settings
digital transformation
do-it-yourself
e-health
mhealth

description: Today, six humans in ten have no access to medical care or do not adhere to it. Achieving collective health requires a mindset shift from competitive models creating dependency (medtech business) to solidarity-driven models building communal capacity (health commons). Here, we present fourteen initiatives created by open networks of interdisciplinary contributors (peer production); who iteratively co-create and document projects (agile development) that can be freely used, repaired, studied, reproduced and adapted by communities (libre and open-source licences) at fair prices or no cost. As resources are mutualized to avoid redundancies, costs can be cut by ten to hundred times in comparison to IP-driven models. Such commons also foster local capacity building, as various communities can take responsibility to validate, produce and distribute the projects (crowd/peer production). Disease management: valve for mask (Isinnova Charlotte), oxygen concentrator (M19 O2), ventilation machine (OpenVent), ventilator co-design platform (Polyvent), genetic material development (OpenPCR), repurposing treatments (DNDi AntiCov). Disease prevention: hand rub (Geneva Hand Hygiene Model), Pulmonary Toolkit – 3D lung modeling (Pulmonary Toolkit), transparent mask (BEclear), air quality sensor (LogAir), digital health ecosystem (GNU Health). Health promotion: fun respiratory care (Breathing Games), traditional medicine (CEMI), social support network (Art Hives). Editable version
title: ÐÐ¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ñ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð¾Ð² ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ ÑÐ°ÑÑÐ¾ÑÐ½ÑÑ Ð¿ÑÐ¸Ð²Ð¾Ð´Ð¾Ð² Ð¼Ð¾ÑÐ½Ð¾Ð¹ ÑÐ¸Ð½Ñ ÑÐ¾Ð½Ð½Ð¾Ð¹ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸ Ð² Ð¾Ð±ÑÐµÐ´Ð¸Ð½ÑÐ½Ð½Ð¾Ð¹ ÑÐ½ÐµÑÐ³Ð¾ÑÐ¸ÑÑÐµÐ¼Ðµ
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: Optimization of control algorithms of variable frequency drive for powerful synchronous load in interconnected system
Creators: name: Ð¡Ð¸Ð²Ð¾ÐºÐ¾Ð½Ñ, 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: 2019
Subjects: Ð­Ð½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ
ÐÑÐ¸Ð²Ð¾Ð´Ñ
ÑÐ°ÑÑÐ¾ÑÐ½ÑÐµ Ð¿ÑÐ¸Ð²Ð¾Ð´Ñ
ÑÐ¸Ð½Ñ ÑÐ¾Ð½Ð½ÑÐ¹ ÑÐ°ÑÑÐ¾ÑÐ½ÑÐ¹ Ð¿ÑÑÐº

description: ÐÐ°Ð³Ð¸ÑÑÐµÑÑÐºÐ°Ñ Ð´Ð¸ÑÑÐµÑÑÐ°ÑÐ¸Ñ Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð¾Ð² ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ ÑÐ°ÑÑÐ¾ÑÐ½ÑÑ Ð¿ÑÐ¸Ð²Ð¾Ð´Ð¾Ð² Ð¼Ð¾ÑÐ½Ð¾Ð¹ ÑÐ¸Ð½ÑÑÐ¾Ð½Ð½Ð¾Ð¹ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐµ Ð²Ð°ÑÐ¸Ð°Ð½ÑÑ Ð¿ÑÑÐºÐ¾Ð² ÑÐ¸Ð½ÑÑÐ¾Ð½Ð½ÑÑ Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»ÐµÐ¹. ÐÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐµ Ð¼ÐµÑÐ¾Ð´Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ ÑÐ°ÑÑÐ¾ÑÐ½ÑÑ Ð¿ÑÐ¸Ð²Ð¾Ð´Ð¾Ð².
description: Master's thesis is devoted to the study of optimization of control algorithms of frequency drives of high-power synchronous load. Consider the different start-up of synchronous motors. Different control methods of frequency drives are analyzed.
A new quasi-exactly solvable problem and its connection with an anharmonic oscillator
Creators: name: Yang, Da-Bao
name: Zhang, Fu-Lin
name: Chen, Jing-Ling
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The two-dimensional hydrogen with a linear potential in a magnetic field is solved by two different methods. Furthermore the connection between the model and an anharmonic oscillator had been investigated by methods of KS transformation.
title: Ð¢ÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¸ ÑÑÐ½Ð´Ð°Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐµ Ð°ÑÐ¿ÐµÐºÑÑ Ð¿ÐµÑÐµÑÐ°Ð±Ð¾ÑÐºÐ¸ Ñ Ð°Ð»ÑÐºÐ¾Ð³ÐµÐ½Ð¸Ð´Ð½ÑÑ ÑÑÐµÐºÐ¾Ð» Ð´Ð»Ñ Ð¸Ð½ÑÑÐ°ÐºÑÐ°ÑÐ½ÑÑ Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐ¸ÑÑÐµÐ¼
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: Technological and fundamental aspects of chalcogenide glass processing for infrared optical systems
Creators: name: ÐÐ½Ð´ÑÐµÐµÐ², ÐÐµÐ½Ð¸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: 2019
Subjects: Ñ Ð°Ð»ÑÐºÐ¾Ð³ÐµÐ½Ð¸Ð´Ð½ÑÐµ ÑÑÐµÐºÐ»Ð°
Ð²Ð°ÐºÑÑÐ¼Ð½Ð°Ñ Ð´Ð¸ÑÑÐ¸Ð»Ð»ÑÑÐ¸Ñ
ÐÐ-Ð¾Ð±Ð»Ð°ÑÑÑ ÑÐ¿ÐµÐºÑÑÐ°
chalcogenide glasses
vacuum distillation
IR spectrum region

description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÑÑÑÑ Ð·Ð°Ð³ÑÑÐ·Ð½ÐµÐ½Ð½ÑÐ¹ ÑÐµÐ»ÐµÐ½, Ð¾ÑÑÐ°Ð±Ð¾ÑÐ°Ð²ÑÐ¸Ð¹ ÑÐ²Ð¾Ð¹ ÑÐµÑÑÑÑ, Ð¸ ÑÑÐµÐºÐ»Ð° ÑÑÐµÑÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½ÑÐ½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ As-S-Se. Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð²Ð¸Ð´Ñ Ð´Ð²ÑÑÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½ÑÐ½ÑÑ Ð¸ ÑÑÐµÑÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½ÑÐ½ÑÑ ÑÐ°Ð»ÑÐºÐ¾Ð³ÐµÐ½Ð¸Ð´Ð½ÑÑ ÑÑÐµÐºÐ¾Ð» Ð¸ Ð¸Ñ ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¸ Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð°. ÐÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ° ÑÐ¸Ð½ÑÐµÐ·Ð° ÑÐ°Ð»ÑÐºÐ¾Ð³ÐµÐ½Ð¸Ð´Ð½ÑÑ ÑÑÐµÐºÐ¾Ð» Ð² ÐºÐ²Ð°ÑÑÐµÐ²ÑÑ Ð¸Ð·Ð¾Ð»Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ Ð°Ð¼Ð¿ÑÐ»Ð°Ñ. Ð¢Ð°ÐºÐ¶Ðµ Ð±ÑÐ»Ð¸ Ð¸Ð·ÑÑÐµÐ½Ñ ÑÐ¿Ð¾ÑÐ¾Ð±Ñ Ð¿ÐµÑÐµÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð·Ð°Ð³ÑÑÐ·Ð½ÐµÐ½Ð½Ð¾Ð³Ð¾ ÑÐµÐ»ÐµÐ½Ð° Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð²Ð°ÐºÑÑÐ¼Ð½Ð¾Ð¹ Ð´Ð¸ÑÑÐ¸Ð»Ð»ÑÑÐ¸Ð¸.
description: The object of the study is contaminated selenium, spent its life, and glass three-component system As-Se. In this paper we consider the main types of two-component and three-component chalcogenide glasses and their thermal and optical properties. The method of synthesis of chalcogenide glasses in quartz isolated ampoules is applied. Methods of processing contaminated selenium by vacuum distillation were also studied.
Vorticity production through rotation, shear and baroclinicity
Creators: name: Del Sordo, Fabio
name: Brandenburg, Axel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In the absence of rotation and shear, and under the assumption of constant temperature or specific entropy, purely potential forcing by localized expansion waves is known to produce irrotational flows that have no vorticity. Here we study the production of vorticity under idealized conditions when there is rotation, shear, or baroclinicity, to address the problem of vorticity generation in the interstellar medium in a systematic fashion. We use three-dimensional periodic box numerical simulations to investigate the various effects in isolation. We find that for slow rotation, vorticity production in an isothermal gas is small in the sense that the ratio of the root-mean-square values of vorticity and velocity is small compared with the wavenumber of the energy-carrying motions. For Coriolis numbers above a certain level, vorticity production saturates at a value where the aforementioned ratio becomes comparable with the wavenumber of the energy-carrying motions. Shear also raises the vorticity production, but no saturation is found. When the assumption of isothermality is dropped, there is significant vorticity production by the baroclinic term once the turbulence becomes supersonic. In galaxies, shear and rotation are estimated to be insufficient to produce significant amounts of vorticity, leaving therefore only the baroclinic term as the most favorable candidate. We also demonstrate vorticity production visually as a result of colliding shock fronts.
description: 9 pages, 10 figures, Accepted for publication in A&A