cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A remark on quantum measuring systems and the holographic principle
Creators: name: Konishi, Eiji
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is a sort of ultimate question to examine the continuity of a quantum measurement subject theoretically and has not yet been resolved within a scientific framework. In this article, we approach this question and argue that the continuity of a quantum measurement subject follows as a fundamental consequence of the holographic principle after the classicalization of the quantum state of the bulk space.
description: 6 pages, latex
Inflaton fluctuations in the presence of cosmological defects
Creators: name: Cho, Hing-Tong
name: Ng, Kin-Wang
name: Wang, I-Chin
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study quantum fluctuations of a free massless scalar field during inflation in the presence of a point, line, or plane defect such as a black hole, cosmic string, or domain wall, using a perturbative expansion in powers of small defect parameters. We provide results for the scalar two-point correlation functions that show explicitly a small violation of translational invariance during inflation.
description: 16 pages. arXiv admin note: text overlap with arXiv:0905.2041
A Queueing Characterization of Information Transmission over Block Fading Rayleigh Channels in the Low SNR
Creators: name: Dong, Yunquan
name: Fan, Pingyi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Unlike the AWGN (additive white gaussian noise) channel, fading channels suffer from random channel gains besides the additive Gaussian noise. As a result, the instantaneous channel capacity varies randomly along time, which makes it insufficient to characterize the transmission capability of a fading channel using data rate only. In this paper, the transmission capability of a buffer-aided block Rayleigh fading channel is examined by a constant rate input data stream, and reflected by several parameters such as the average queue length, stationary queue length distribution, packet delay and overflow probability. Both infinite-buffer model and finite-buffer model are considered. Taking advantage of the memoryless property of the service provided by the channel in each block in the the low SNR (signal-to-noise ratio) regime, the information transmission over the channel is formulated as a \textit{discrete time discrete state} $D/G/1$ queueing problem. The obtained results show that block fading channels are unable to support a data rate close to their ergodic capacity, no matter how long the buffer is, even seen from the application layer. For the finite-buffer model, the overflow probability is derived with explicit expression, and is shown to decrease exponentially when buffer size is increased, even when the buffer size is very small.
description: 29 pages, 11 figures. More details on the proof of Theorem 1 and proposition 1 can be found in "Queueing analysis for block fading Rayleigh channels in the low SNR regime ", IEEE WCSP 2013.It has been published by IEEE Trans. on Veh. Technol. in Feb. 2014
A Note on the Gauge Invariant Uniqueness Theorem for C*-correspondences
Creators: name: Kakariadis, Evgenios T. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Operator Algebras (math.OA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46L08, 47L55

description: We present a short proof of the gauge invariant uniqueness theorem for relative Cuntz-Pimsner algebras of C*-correspondences.
description: 7 pages; changes in the introduction
Systematische Literatursuche ohne DIMDI. Ein Szenario
Creators: name: Knüttel, Helge
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: 020 Bibliotheks- und Informationswissenschaft
subject: 610 Medizin

description: Im Rahmen der sog. Evidenzbasierten Medizin (EBM) wird versucht, Empfehlungen für medizinisches Handeln zu erstellen. Basis dafür ist, alle Studien der medizinischen Forschung zu einem bestimmten Thema im Rahmen eines transparenten, reproduzierbaren Prozesses zu finden und zu bewerten. Hierfür wurden methodische Standards entwickelt, die sich auch auf die Literatursuche erstrecken und dabei die Einbindung von Informationsspezialisten vorsehen. In diesem Bereich findet die Rolle klassischer Informationsvermittlung, erweitert um Beratung, zunehmend an Bedeutung. Das Deutsche Institut für Medizinische Dokumentation und Information (DIMDI), eine Bundesanstalt im Geschäftsbereich des Bundesministeriums für Gesundheit, kündigte Anfang 2016 an, ab dem Jahr 2017 keine Literaturdatenbanken für die Recherche mehr zu hosten. Während die herausragende Bedeutung der EBM für die Gesundheitsversorgung international anerkannt ist und durch die öffentliche Hand zunehmend gefördert wird, reduziert Deutschland dieses Feld und nimmt seinen Bürgern den Zugang zur medizinischen Evidenz. Es wird die Möglichkeit verloren gehen, auf eine größere Bandbreite der wichtigsten medizinischen Literaturdatenbanken zugreifen zu können und dabei auch ausgefeilte Retrievalmöglichkeiten zu nutzen, wie sie für Systematische Literatursuchen notwendig sind. Andere Zugänge zu Literaturdatenbanken sind keine gangbaren oder adäquaten Alternativen für professionelle Recherchen insb. für die Forschung in öffentlicher Hand. Da die Kosten für Pauschallizenzen vieler Datenbanken so hoch sind, bietet das DIMDI mit dem Pay-per-Use oft den aus finanziellen Gründen einzig möglichen Zugang zu diesen Datenbanken. Für umfassende Suchen mit dem Anspruch an Vollständigkeit (Systematic Reviews, Metaanalysen, Leitlinien, HTA) ist deshalb oft die Suche beim DIMDI mit Unterstützung durch Informationsspezialisten notwendig. Diesen Recherchen kommt im Gesundheitssystem die mit Abstand größte Bedeutung zu und sie haben außerordentlichen Einfluss auf die Qualität und die Kosten der Krankenversorgung. Der überwiegende Teil der Forschungssynthesen wird dezentral durch Fachgesellschaften und an Universitäten erarbeitet. Wenn die Suche beim DIMDI wegfällt, werden solche qualifizierten Recherchen aufgrund personeller und finanzieller Limitierungen kaum mehr möglich sein. Die Barrieren für Informationsspezialisten bspw. an Universitätsbibliotheken, die der Nachfrage entsprechend ein Angebot aufbauen möchten, steigen. Die beiden zentralen medizinischen Informationsversorger Deutschlands, DIMDI und ZBMed, entziehen sich der Unterstützung. Das DIMDI gibt zusammen mit den Literaturdatenbanken auch jahrzehntelang aufgebautes Know-How auf. Der Beitrag der ZBMed, das Suchportal LIVIVO, ist für qualifizierte Suchen kaum geeignet.
Search for squarks and gluinos with the ATLAS detector in final states with jets and missing transverse momentum using $\sqrt{s}=8$ TeV proton--proton collision data
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for squarks and gluinos in final states containing high-$p_{\rm T}$ jets, missing transverse momentum and no electrons or muons is presented. The data were recorded in 2012 by the ATLAS experiment in $\sqrt{s}=8$ TeV proton-proton collisions at the Large Hadron Collider, with a total integrated luminosity of $20.3 \mathrm{fb}^{-1}$. No significant excess above the Standard Model expectation is observed. Results are interpreted in a variety of simplified and specific supersymmetry-breaking models assuming that R-parity is conserved and that the lightest neutralino is the lightest supersymmetric particle. An exclusion limit at the 95% confidence level on the mass of the gluino is set at 1330 GeV for a simplified model incorporating only a gluino and the lightest neutralino. For a simplified model involving the strong production of first- and second-generation squarks, squark masses below 850 GeV (440 GeV) are excluded for a massless lightest neutralino, assuming mass degenerate (single light-flavour) squarks. In mSUGRA/CMSSM models with $\tanβ=30$, $A_0=-2m_0$ and $μ> 0$, squarks and gluinos of equal mass are excluded for masses below 1700 GeV. Additional limits are set for non-universal Higgs mass models with gaugino mediation and for simplified models involving the pair production of gluinos, each decaying to a top squark and a top quark, with the top squark decaying to a charm quark and a neutralino. These limits extend the region of supersymmetric parameter space excluded by previous searches with the ATLAS detector.
description: 36 pages plus author list + cover pages (55 pages total), 13 figures, 5 tables, submitted to JHEP, All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2013-02/
Edge-state blockade of transport in quantum dot arrays
Creators: name: Benito, Mónica
name: Niklas, Michael
name: Platero, Gloria
name: Kohler, Sigmund
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: PHASE; BANDS;
subject: 530 Physik
subject: 05.60.Gg
subject: 03.65.Vf
subject: 73.23.Hk

description: We propose a transport blockade mechanism in quantum dot arrays and conducting molecules based on an interplay of Coulomb repulsion and the formation of edge states. As a modelwe employ a dimer chain that exhibits a topological phase transition. The connection to a strongly biased electron source and drain enables transport. We show that the related emergence of edge states is manifest in the shot noise properties as it is accompanied by a crossover from bunched electron transport to a Poissonian process. For both regions we develop a scenario that can be captured by a rate equation. The resulting analytical expressions for the Fano factor agree well with the numerical solution of a full quantum master equation.
Learning-based dynamic ticket pricing for passenger railway service providers
Creators: name: Kamandanipour, Keyvan
name: Yakhchali, Siamak Haji
name: Tavakkoli-Moghaddam, Reza
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: This article proposes a data-driven ticket dynamic pricing methodology for passenger railway service providers. There is a finite purchasing horizon, and the ticket prices should be set under varying conditions to affect the customer booking behaviour. A three-step process including machine learning and optimization tools is employed to maximize the revenue under a constrained train capacity. First, a multi-layer perceptron artificial neural network (MLP-ANN) model is proposed to predict the demand intensity due to seasonal situations using the ticket reservation data. Then, some regression models as price elasticity functions are used to quantify the effects of price, seasonal conditions and competition on the company’s sales. Finally, a nonlinear integer programming model is proposed to maximize the total revenue in the purchasing horizon. The results of the numerical studies on the Fadak Five-Star Trains’ reservation data indicate that the proposed methodology has high-grade potential to improve the service provider’s revenue.
Radial spacing distributions from planar points sets
Creators: name: Baake, Michael
name: Götze, Friedrich
name: Huck, Christian
name: Jakobi, Tobias
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: In this paper, we explore the radial projection method for locally finite point sets and provide numerical examples for different types of order. The main question is whether the method is suitable to analyse order in a quantitive way. Our findings indicate that the answer is affermative. In this context, we also study local visibility conditions for certain types of aperiodic point sets.
description: 10 pages, 23 figures; revised version with minor corrections and additions
Insights into the practicalities of collaboration, data and code sharing across the globe.
Creators: name: Specht, Alison
name: Minahan, Brian
name: Lammey, Rachael
name: Rittman, Martyn
name: Buys, Matt
name: O'Brien, Margaret
name: Castle, David
name: Devillers, Rodolphe
name: David, Romain
name: Mabile, Laurence
name: Machicao, Jeaneth
name: Correa, Pedro Pizzigatti
name: Wyborn, Lesley
name: Hayashi, Kazuhiro
name: Stall, Shelley
Publisher: name: Zenodo
Year: 2023
Subjects: data science challenges
data science future priorities
environmental science
data science
data users
data science tool providers

description: On the occasion of the tenth anniversary of the RDA, and as we approach the end of our Belmont-funded project, PARSEC (www.parsecproject.org), we felt it was time to discuss the practicalities of collaboration, data and code sharing for publication and re-use across the globe. The PARSEC team–from five geographically-dispersed countries–has collaborated for four years on the collation and harmonisation of data and the development of new methods for sharing data and code as we investigate the socio-economic effects of nature conservation initiatives. We have had very profitable partnerships in this endeavour with several leading data infrastructure and research tool providers, including ORCID, DataCite, the RDA itself, and the World Data System. In this session representatives of the key data science infrastructures (ORCID, Scholix, Crossref, DataCite, the WDS, the Environmental Data Initiative) and users (representing the voice of marine conservation, machine learning, data for artificial intelligence, health and life sciences, social inequalities in health, the geoscience community and domain variations in open science and open data) discuss the challenges they face and their vision of the optimum path to the future.
description: This project was conducted as part of the Belmont Forum PARSEC project, funded under the Collaborative Research Action (CRA) on Science-Driven e-Infrastructures Innovation (SEI), with funding from FAPESP, the ANR, JST and the NSF, with collaborators from Australia, and support from the synthesis centre CESAB of the French Foundation for Research on Biodiversity.
Representing the Graviton Self-Energy on de Sitter Background
Creators: name: Leonard, Katie E.
name: Park, Sohyun
name: Prokopec, Tomislav
name: Woodard, R. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive a noncovariant but simple representation for the self-energy of a conformally transformed graviton field on the cosmological patch of de Sitter. Our representation involves four structure functions, as opposed to the two that would be necessary for a manifestly de Sitter invariant representation. We work out what the four structure functions are for the one loop correction due to a massless, minimally coupled scalar. And we employ the result to work out what happens to dynamical gravitons.
description: 38 pages, no figures, uses LaTeX2e, version 2 (39 pages) revised for publication with many errors corrected
Gamma-ray burst afterglow plateau break time - luminosity correlations favour thick shell models over thin shell models
Creators: name: van Eerten, Hendrik
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A number of correlations between observables have been found to exist for gamma-ray burst (GRB) afterglows, linking ejecta energy to prompt and afterglow energy release and linking early stage optical and X-ray luminosity to the end times of these stages. Here, these correlations are compared to thick and thin shell models for GRB afterglows. In the thick shell model, the time evolution of the underlying relativistic blast wave is still influenced by the original ejecta, while in the thin shell model most energy in the explosion has been transferred to the external medium. It is shown here that the observed correlations rule out basic thin shell models but not the basic thick shell model. In the thick shell case, both forward shock and reverse shock dominated outflows are shown to be consistent with the correlations, using randomly generated samples of thick shell model afterglows.
description: 11 pages, 4 figures. Expanded version, now matches MNRAS accepted version
Bid construction scheme based on local search to solve serial–parallel cooperative batch scheduling problems
Creators: name: Zeng, Chengkuan
name: Liu, Zixuan
name: Tang, Jiafu
name: Fan, Zhi-Ping
name: Yan, Chongjun
name: Long, Siyuan
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Inorganic Chemistry
subject: Science Policy

description: This study addresses cooperative batch scheduling problems based on both serial batch (s-batch) scheduling and parallel batch (p-batch) scheduling. A mixed-integer linear programming model was formulated to describe such problems and a bid construction scheme (BCS) was developed to solve them. In s-batch and p-batch scheduling, the sheet strips function as both bidders and auctioned resources, with different sheet strips forming different batches over multiple rounds of auctioning. Then, a local search operator is applied to optimize the feasible solutions. Numerical experiments were conducted on a series of randomly generated and real-world instances. The results obtained by the proposed BCS were compared with those obtained by four combinations of existing algorithms and analysed by SPSS. The proposed scheme was able to identify feasible solutions quickly and efficiently, proving its the effectiveness, stability, practicality, and suitability for addressing cooperative batch scheduling problems, especially those corresponding to large-scale instances.
A spinning supermassive black hole binary model consistent with VLBI observations of the S5 1928+738 jet
Creators: name: Kun, E.
name: Gabányi, K. É.
name: Karouzos, M.
name: Britzen, S.
name: Gergely, L. Á.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Very Long Baseline Interferometry (VLBI) allows for high-resolution and high-sensitivity observations of relativistic jets, that can reveal periodicities of several years in their structure. We perform an analysis of long-term VLBI data of the quasar S5 1928+738 in terms of a geometric model of a helical structure projected onto the plane of the sky. We monitor the direction of the jet axis through its inclination and position angles. We decompose the variation of the inclination of the inner 2 milliarcseconds of the jet of S5 1928+738 into a periodic term with amplitude of ~0.89 deg and a linear decreasing trend with rate of ~0.05 deg/yr. We also decompose the variation of the position angle into a periodic term with amplitude of ~3.39 deg and a linear increasing trend with rate of ~0.24 deg/yr. We interpret the periodic components as arising from the orbital motion of a binary black hole inspiraling at the jet base and derive corrected values of the mass ratio and separation from the accumulated 18 years of VLBI data. Then we identify the linear trends in the variations as due to the slow reorientation of the spin of the jet emitter black hole induced by the spin-orbit precession and we determine the precession period T_SO=4852+/-646 yr of the more massive black hole, acting as the jet emitter. Our study provides indications, for the first time from VLBI jet kinematics, for the spinning nature of the jet-emitting black hole.
description: 13 pages, 6 figures, 6 tables (+ 10 pages with 3 tables for online publication only), to appear in MNRAS
The Dr. Jose Rizal Prize for Modern Leaders (The Dr. Jose Rizal Prize/The Rizal Prize)
Creators: name: Bano, Dexter Pormento
Publisher: name: Zenodo
Year: 2023
Subjects: Rizal Prize
Dr. Jose Rizal Prize
The Rizal Prize
The Dr. Jose Rizal Prize
The Dr. Jose Rizal Prize for Modern Leaders

description: ABSTRACT The Dr. Jose Rizal Prize for Modern Leaders is a proposal by Dexter P. Bano Jr. that aims to honor individuals who exhibit expertise, dedication, measurable impact, and years of proven track record in areas that Dr. Jose Rizal excelled in. The prize will be awarded to 24 laureates annually, representing the 24 students of Rizal in Dapitan, from 19 countries that Rizal visited during his lifetime. Nominations and laureates will be chosen from six categories: Science/Research/Engineering, Social enterprise/Philanthropy, Education, Medicine, Journalism/Literature/Arts, and Environment/Environmental Science. A special committee called The Dr. Jose Rizal Prize Committee will be in charge of selecting the laureates, composed of Rizalian scholars, academics, civil society members, activists, leaders, members of the Order of the Knights of Rizal and The Rizal Academy for Innovation and Leadership, and living descendants of Dr. Jose Rizal. The committee will adhere to a vow of secrecy for 35 years and will sign for five years of service, adhering to Rizal's age when he could already read and write. If the 35-year vow of secrecy is violated, the responsible member/members will be dismissed, and the Order of the Knights of Rizal will start Operation Bagumbayan, a process of selecting a new committee. The proposal seeks to honor and recognize the legacy of Dr. Jose Rizal and inspire modern leaders to strive for excellence in their respective fields.
Consentaneous agent-based and stochastic model of the financial markets
Creators: name: Gontis, V.
name: Kononovicius, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: We are looking for the agent-based treatment of the financial markets considering necessity to build bridges between microscopic, agent based, and macroscopic, phenomenological modeling. The acknowledgment that agent-based modeling framework, which may provide qualitative and quantitative understanding of the financial markets, is very ambiguous emphasizes the exceptional value of well defined analytically tractable agent systems. Herding as one of the behavior peculiarities considered in the behavioral finance is the main property of the agent interactions we deal with in this contribution. Looking for the consentaneous agent-based and macroscopic approach we combine two origins of the noise: exogenous one, related to the information flow, and endogenous one, arising form the complex stochastic dynamics of agents. As a result we propose a three state agent-based herding model of the financial markets. From this agent-based model we derive a set of stochastic differential equations, which describes underlying macroscopic dynamics of agent population and log price in the financial markets. The obtained solution is then subjected to the exogenous noise, which shapes instantaneous return fluctuations. We test both Gaussian and q-Gaussian noise as a source of the short term fluctuations. The resulting model of the return in the financial markets with the same set of parameters reproduces empirical probability and spectral densities of absolute return observed in New York, Warsaw and NASDAQ OMX Vilnius Stock Exchanges. Our result confirms the prevalent idea in behavioral finance that herding interactions may be dominant over agent rationality and contribute towards bubble formation.
description: 17 pages, 6 figures, Gontis V, Kononovicius A (2014) Consentaneous Agent-Based and Stochastic Model of the Financial Markets. PLoS ONE 9(7): e102201. doi: 10.1371/journal.pone.0102201
title: ВЛИЯНИЕ ПЕПТИДА AКТГ(6-9)-PRO-GLY-PRO  НА СОСТОЯНИЕ МИКРОБИОЦЕНОЗА ТОЛСТОЙ КИШКИ КРЫС  В УСЛОВИЯХ ХРОНИЧЕСКОГО ИММОБИЛИЗАЦИОННОГО СТРЕССА
Creators: name: Ворвуль, Антон Олегович
name: Медведева, Ольга Анатольевна
name: Бобынцев, Игорь Иванович
name: Мухина, Александра Юрьевна
name: Шеховцова, Оксана Викторовна
name: Свищева, Мария Владимировна
name: Андреева, Людмила Александровна
name: Мясоедов, Николай Федорович
Publisher: name: Астраханский государственный медицинский университет
Year: 2022
Subjects: subject: Clinical medicine
subject: FOS: Clinical medicine

description: Хронический стресс является одним из факторов развития дисбиоза кишечника, который может привести к нарушению функционирования центральной нервной системы, поэтому целесообразным является поиск новых подходов к решению данной проблемы. Цель исследования – изучить состояние париетальной микробиоты толстой кишки при применении АКТГ6-9-PGP в условиях хронического иммобилизационного стресса. Материалы и методы исследования. Подопытные крысы были разделены на 5 групп (n = 11). 1 группа – контроль (нестрессирован-ные животные, которым вводили физиологический раствор), 2 группа – животные, подвергну-тые стрессорному воздействию, которым вводили физиологический раствор. В последующие три группы вошли стрессированные животные, которым вводили АКТГ6-9-PGP в разных дозах. В 3 группе доза составила 5 мкг/кг, в 4 группе – 50 мкг/кг, в 5 группе – 500 мкг/кг. Изучены эффекты пептида АКТГ(6-9)-Pro-Gly-Pro на состав мукозальной микробиоты толстой кишки у крыс Вистар в условиях хронического иммобилизационного стресса на протяжении 14 дней. Пептид вводили интраперитонельно в дозах 5, 50 и 500 мкг/кг 1 раз в сутки. Результаты исследования. Стрессорное воздействие вызвало изменение состава микробиоты в виде уменьшения числа и доли облигатных микроорганизмов и их увеличения среди условно-патогенных микро-организмов на фоне повышенного содержания кортикостерона в сыворотке крови животных. Применение пептида во всех исследуемых дозах корригировало стресс-индуцированные изменения структуры пристеночной микробиоты толстой кишки на фоне снижения уровня кортикостерона. При этом наиболее близкий по количественным и качественным характеристикам к нестрессированным животным состав микробиоты отмечали в группе животных, которым вводили пептид в дозе 500 мкг/кг. Заключение. Применение АКТГ(6-9)-Pro-Gly-Pro способствовало нивелированию стрессиндуцированных изменений в составе пристеночной микрофлоры толстой кишки у крыс.
Exact decoherence dynamics of $1/f$ noise
Creators: name: Ali, Md. Manirul
name: Lo, Ping-Yuan
name: Zhang, Wei-Min
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we investigate the exact decoherence dynamics of a superconducting resonator coupled to an electromagnetic reservoir characterized by the $1/f$ noise at finite temperature, where a full quantum description of the environment with $1/f^{x}$ noise (with $x \approx 1$) is presented. The exact master equation and the associated non-equilibrium Green's functions are solved exactly for such an open system. We show a clear signal of non-Markovian dynamics induced purely by $1/f$ noise. Our analysis is also applicable to another nano/micro mechanical oscillators. Finally, we demonstrate the non-Markovian decoherence dynamics of photon number superposition states using Wigner distribution that could be measured in experiments.
description: 8 pages, 5 figures (Accepted for publication in New J. Phys.)
Large deviations for white-noise driven, nonlinear stochastic PDEs in two and three dimensions
Creators: name: Hairer, Martin
name: Weber, Hendrik
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study the stochastic Allen-Cahn equation driven by a noise term with intensity $\sqrt{\varepsilon}$ and correlation length $δ$ in two and three spatial dimensions. We study diagonal limits $δ, \varepsilon \to 0$ and describe fully the large deviation behaviour depending on the relationship between $δ$ and $\varepsilon$. The recently developed theory of regularity structures allows to fully analyse the behaviour of solutions for vanishing correlation length $δ$ and fixed noise intensity $\varepsilon$. One key fact is that in order to get non-trivial limits as $δ\to 0$, it is necessary to introduce diverging counterterms. The theory of regularity structures allows to rigorously analyse this renormalisation procedure for a number of interesting equations. Our main result is a large deviation principle for these renormalised solutions. One interesting feature of this result is that the diverging renormalisation constants disappear at the level of the large deviations rate function. We apply this result to derive a sharp condition on $δ, \varepsilon$ that guarantees a large deviation principle for diagonal schemes $\varepsilon, δ\to 0$ for the equation without renormalisation.
description: 29 pages, Version 2 is accepted for publication in "Annales de la Facult\'e des Sciences de Toulouse", some typos are removed and some smaller clarifications are made
A Literature Review on Smartphone Security in Organizations using a new theoretical Model - The Dynamic Security Success Model
Creators: name: Reinfelder, Lena
name: Weishäupl, Eva
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: Smartphone, IT-Security, Information System Success Model, Organizational Learning, Literature Review
subject: 000 Allgemeines, Wissenschaft
subject: 004 Informatik

description: Smartphones have become an important part of organizational IT infrastructures including benefits such as increased productivity as well as IT security risks. These risks are mainly related to unauthorized access to corporate data. Integrating smartphones in organizations regarding security involves a sequence of decisions, ranging from the integration approach (smartphones owned by employees or by the organization) to specific security measures implemented on the devices. This is an ongoing process making constant adaption necessary due to progressive development of hard- and software and due to new security risks arising. We propose the Dynamic Security Success Model (DSSM) – a combination of the DeLone & McLean Information Systems Success Model and Argyris’ Organizational Learning Theory. This theoretical foundation combines the individual and the organizational impact of smartphone security measures with the learning perspective, allowing a company to respond to the ever changing security requirements of smartphones in organizations. Based on the DSSM, existing literature is reviewed and research gaps are derived for future work.
FRATERNAL COHESION LEVEL AND THEIR RELATIONSHIP TO PARENTAL ABSENCE AMONG A SAMPLE OF PREPARATORY STAGE STUDENTS IN JORDAN
Creators: name: FERYAL AL-KHATIB
name: MOHAMMED ALI ABDALLAH MOMANI
name: Dr. AHMAD Y. ALJAWARNEH
Publisher: name: Zenodo
Year: 2023
Subjects: Fraternal Cohesion, Parental Absence, Preparatory Stage Students, Jordan.

description: Abstract
This study aimed to identify the fraternal cohesion level among a sample of preparatory stage students in Jordan, and explore the relationship between parental absence in fraternal cohesion and the effect of absence on the fraternal relationship; The sample consisted of (446) students. The results also showed differences due to gender in the fraternal relationship scale in favor of males, except dimension: Relationship between brothers and sisters in favor of females. In addition to the existence of differences due to parental absence in the fraternal relationship scale in favor of the absence of the mother dimension: Responsibility feeling in favor of the absence of both parents, and found the effect of the interaction between the gender and parental absence on the brotherly relationship scale except for the dimension: Relationship between brothers and sisters, there was no interaction.
Theory of dynamic nuclear polarization and feedback in quantum dots
Creators: name: Economou, Sophia E.
name: Barnes, Edwin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An electron confined in a quantum dot interacts with its local nuclear spin environment through the hyperfine contact interaction. This interaction combined with external control and relaxation or measurement of the electron spin allows for the generation of dynamic nuclear polarization. The quantum nature of the nuclear bath, along with the interplay of coherent external fields and incoherent dynamics in these systems renders a wealth of intriguing phenomena seen in recent experiments such as electron Zeeman frequency focusing, hysteresis, and line dragging. We develop in detail a fully quantum, self-consistent theory that can be applied to such experiments and that moreover has predictive power. Our theory uses the operator sum representation formalism in order to incorporate the incoherent dynamics caused by the additional, Markovian bath, which in self-assembled dots is the vacuum field responsible for electron-hole optical recombination. The beauty of this formalism is that it reduces the complexity of the problem by encoding the joint dynamics of the external coherent and incoherent driving in an effective dynamical map that only acts on the electron spin subspace. This together with the separation of timescales in the problem allows for a tractable and analytically solvable formalism. The key role of entanglement between the electron spin and the nuclear spins in the formation of dynamic nuclear polarization naturally follows from our solution. We demonstrate the theory in detail for an optical pulsed experiment and present an in-depth discussion and physical explanation of our results.
description: 23 pages, 13 figures; published PRB version
Nonequilibrium spin crossover in copper phthalocyanine
Creators: name: Siegert, Benjamin
name: Donarini, Andrea
name: Grifoni, Milena
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: SINGLE-MOLECULE JUNCTIONS; MAGNETIC-ANISOTROPY; STATES;
subject: 530 Physik

description: We demonstrate the nonequilibrium tip induced control of the spin state of copper phthalocyanine on an insulator coated substrate. We find that, under the condition of energetic proximity of many-body neutral excited states to the anionic ground state, the system can undergo a population inversion towards these excited states. The resulting state of the system is accompanied by a change in the total spin quantum number. Experimental signatures of the crossover are the appearance of additional nodal planes in the topographical scanning tunneling microscopy images as well as a strong suppression of the current near the center of the molecule. The robustness of the effect against moderate charge conserving relaxation processes has also been tested.
The effect of radial migration on galactic disks
Creators: name: Vera-Ciro, Carlos
name: D'Onghia, Elena
name: Navarro, Julio
name: Abadi, Mario
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the radial migration of stars driven by recurring multi-arm spiral features in an exponential disk embedded in a dark matter halo. The spiral perturbations redistribute angular momentum within the disk and lead to substantial radial displacements of individual stars, in a manner that largely preserves the circularity of their orbits and that results, after 5 Gyr (~40 full rotations at the disk scalelength), in little radial heating and no appreciable changes to the vertical or radial structure of the disk. Our results clarify a number of issues related to the spatial distribution and kinematics of migrators. In particular, we find that migrators are a heavily biased subset of stars with preferentially low vertical velocity dispersions. This "provenance bias" for migrators is not surprising in hindsight, for stars with small vertical excursions spend more time near the disk plane and thus respond more readily to non-axisymmetric perturbations. We also find that the vertical velocity dispersion of outward migrators always decreases, whereas the opposite holds for inward migrators. To first order, newly arrived migrators simply replace stars that have migrated off to other radii, thus inheriting the vertical bias of the latter. Extreme migrators might therefore be recognized, if present, by the unexpectedly small amplitude of their vertical excursions. Our results show that migration, understood as changes in angular momentum that preserve circularity, can affect strongly the thin disk, but cast doubts on models that envision the Galactic thick disk as a relic of radial migration.
description: 10 pages, 12 figures. ApJ in press
A novel pedestrian road crossing simulator for dynamic traffic light scheduling systems
Creators: name: Tan, Dayuan
name: Younis, Mohamed
name: Lalouani, Wassila
name: Fan, Shuyao
name: Song, Guozhi
Publisher: name: arXiv
Year: 2024
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The major advances in intelligent transportation systems are pushing societal services toward autonomy where road management is to be more agile in order to cope with changes and continue to yield optimal performance. However, the pedestrian experience is not sufficiently considered. Particularly, signalized intersections are expected to be popular if not dominant in urban settings where pedestrian density is high. This paper presents the design of a novel environment for simulating human motion on signalized crosswalks at a fine-grained level. Such a simulation not only captures typical behavior, but also handles cases where large pedestrian groups cross from both directions. The proposed simulator is instrumental for optimized road configuration management where the pedestrians' quality of experience, for example, waiting time, is factored in. The validation results using field data show that an accuracy of 98.37 percent can be obtained for the estimated crossing time. Other results using synthetic data show that our simulator enables optimized traffic light scheduling that diminishes pedestrians' waiting time without sacrificing vehicular throughput.
National Opinion Research Center General Social Survey 1972-2021
Creators: name: National Science Foundation (NSF)
Publisher: name: Roper Center for Public Opinion Research
Year: 2023

description: The 1972-2021 GSS cumulative data file (Release 3b) for the National Opinion Research Center's General Social Surveys (GSS) is now available from the Roper Center for Public Opinion Research via Roper iPoll. The General Social Survey is one of the nation's longest-running surveys of social, cultural and political indicators available today. Encompassing 49 years of national survey data in one comprehensive data file. The newly released cumulative data file contains individual response coding for 68846 respondents and 6361 variables.
The effect of electron correlation on the electronic structure and spin-lattice coupling of the high-T$_c$ cuprates: quantum Monte Carlo calculations
Creators: name: Wagner, Lucas K.
name: Abbamonte, Peter
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Electron correlation effects are particularly strong in the high temperature superconducting materials. Devising an accurate description of these materials has long been a challenge, with these strong correlation effects historically being considered impossible or impractical to simulate computationally. Using quantum Monte Carlo techniques, we have explicitly simulated electron correlations in several cuprate materials from first principles. These simulations accurately reproduce many important physical quantities about these materials, including the interaction-induced gap and the superexchange coupling between copper spins, with no additional parameters beyond fundamental constants. We further investigate the dimensionless spin-lattice coupling parameter in the parent materials, showing that it varies dramatically between 0.1 and 1.0 depending on the interlayer. This result indicates that the lattice and magnetic degrees of freedom are not independent in these systems, which may have ramifications for the origin of superconductivity.
Effective and efficient topical collocation models
Creators: name: Zhao, Zhendong
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Topic models are powerful tools for automatically detecting latent topic distributions from a set of documents. The "bag-of-words" representation used in conventional topic models, however, ignores potentially useful dependencies between words. Topical collocation models extend topic models by modelling relationships between mutually informative consecutive words. Since the standard methods for evaluating "bag-of-words" topic models do not directly apply to topical collocation models, many fundamental questions remain open. For example, it is not clear whether topical collocation models are better than topic models, which kind of topical collocation model is the best, and how well the best-performing model scales to large datasets. Therefore, to address these questions, this thesis has three parts. In the first part, we develop four different evaluation methods for topical collocation models and apply them to five topical collocation models and a standard topic model, Latent Dirichlet Allocation (LDA). We evaluate the models using human annotation, a point-wise mutual information metric, and practical down-stream information retrieval and classification tasks. The experiments reveal that 1) almost all the topical collocations models achieve better performance than LDA on all the evaluation methods; and 2) topical collocation models using Adaptor Grammars (AG-colloc) almost always provide a new state-of-the-art, though some improvements over baselines are marginal. Having identified the best topical collocation model, the second part of this dissertation focuses on scaling it to very large-scale datasets with a sparse parallel reformulation. We present an efficient reformulation of the AG-colloc model, an unsupervised topical collocation model that can learn collocations of arbitrary length. Taking advantage of sparsity in both collocation and topic distributions, we develop a novel linear time sampling algorithm that can be easily parallelised so that the reformulation is capable of handling large-scale corpora. In the third part, the new implementation is compared to LDA and a topic model for learning topical collocations (PA) on large-scale corpora in terms of speed and quality, using the evaluation methods developed in the first part of the thesis. Three contributions of this thesis are: 1. An empirical comparison of five topic models for learning topical collocations (PA, LDACOL, TNG, AG-colloc, and AG-colloc2) to a standard topic model (LDA), using four evaluation methods; 2. An efficient reformulation of the AG-colloc model; 3. A novel linear time sampling algorithm, which can be easily parallelised so that the reformulation is capable of handling large-scale corpora.
title: ОЦЕНКА ЛИТИЧЕСКОЙ АКТИВНОСТИ БАКТЕРИОФАГА В ОТНОШЕНИИ STAPHYLOCOCCUS AUREUS
Creators: name: Генатуллина, Гузель Наилевна
name: Ясенявская, Анна Леонидовна
name: Цибизова, Александра Александровна
Publisher: name: Астраханский государственный медицинский университет
Year: 2022
Subjects: subject: Clinical medicine
subject: FOS: Clinical medicine

description: Исследования противомикробной активности проводились in vitro на штамме S. aureus (B-6646) (эталонный штамм) и на тест-изоляте S. aureus, выделенном у пациента с хроническим пиелонефритом. Оценку чувствительности микроорганизмов к воздействию бактериофагов в присутствии мурамидазы проводили на чашках с готовой питательной средой. Бактериальную суспензию готовили из агаровой культуры. Концентрация микроорганизмов в инокуляте, согласно МУК 4.12.1890-04, составляла 1,5 × 108 КОЕ/мл. На питательную среду культура засевалась газоном по всей поверхности чашки. После подсыхания культуры наносили бактериофаг с мурамидазой (SUNSON Industry Group Co., LTD, Китай) (1,0 г мурамидазы растворяли в 100 мл жидкого препарата бактериофага) каплями на поверхность агара, после чего чашки переворачивали агаром вверх и инкубировали в термостате при 37 °С. Первый учет результатов производили через 6 часов инкубации; окончательную оценку результатов проводили через 24 часа. В качестве контрольных использовали чашки со S. aureus (контроль 1), чашки со S. aureus и бактериофагом стафилококковым (контроль 2), чашки со S. aureus и препаратом сравнения – цефтриаксоном (1,0 г растворяли в воде для инъекций). Оценку результатов литической активности проводили визуально, а также подсчетом колоний эталонного штамма и клинического изолята S. aureus.
Determining the stability and activation energy of Si acceptors in AlGaAs using quantum interference in an open hole quantum dot
Creators: name: Carrad, D. J.
name: Burke, A. M.
name: Klochan, O.
name: See, A. M.
name: Hamilton, A. R.
name: Rai, A.
name: Reuter, D.
name: Wieck, A. D.
name: Micolich, A. P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We fabricated an etched hole quantum dot in a Si-doped (311)A AlGaAs/GaAs heterostructure to study disorder effects via magnetoconductance fluctuations (MCF) at millikelvin temperatures. Recent experiments in electron quantum dots have shown that the MCF is sensitive to the disorder potential created by remote ionised impurities. We utilize this to study the temporal/thermal stability of Si acceptors in p-type AlGaAs/GaAs heterostructures. In particular, we use a surface gate to cause charge migration between Si acceptor sites at T = 40 mK, and detect the ensuing changes in the disorder potential using the MCF. We show that Si acceptors are metastable at T = 40 mK and that raising the device to a temperature T = 4.2 K and returning to T = 40 mK is sufficient to produce complete decorrelation of the MCF. The same decorrelation occurs at T ~ 165 K for electron quantum dots; by comparing with the known trap energy for Si DX centers, we estimate that the shallow acceptor traps in our heterostructures have an activation energy EA ~ 3 meV. Our method can be used to study charge noise and dopant stability towards optimisation of semiconductor materials and devices.