cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Stability of non-time-reversible phonobreathers
Creators: name: Cuevas, J.
name: Archilla, J. F. R.
name: Romero, F. R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Non-time reversible phonobreathers are non-linear waves that can transport energy in coupled oscillator chains by means of a phase-torsion mechanism. In this paper, the stability properties of these structures have been considered. It has been performed an analytical study for low-coupling solutions based upon the so called {\em multibreather stability theorem} previously developed by some of the authors [Physica D {\bf 180} 235]. A numerical analysis confirms the analytical predictions and gives a detailed picture of the existence and stability properties for arbitrary frequency and coupling.
description: J. Phys. A.:Math. and Theor. In Press (2010)
Two simple systems with cold atoms: quantum chaos tests and nonequilibrium dynamics
Creators: name: Stone, Cavan
name: Aoud, Yassine Ait El
name: Yurovsky, Vladimir A
name: Olshanii, Maxim
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This article is an attempt to provide a link between the quantum nonequilibrium dynamics of cold gases and fifty years of progress in the lowdimensional quantum chaos. We identify two atomic systems lying on the interface: two interacting atoms in a harmonic multimode waveguide and an interacting two-component Bose-Bose mixture in a double-well potential. In particular, we study the level spacing distribution, the wavefunction statistics, the eigenstate thermalization, and the ability to thermalize in a relaxation process as such.
description: 18 pages, 9 figures
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ ÑÐ¾Ð½ÐºÐ¸Ñ Ð¿Ð»ÐµÐ½Ð¾Ðº Al Ð¸ Ti Ð½Ð° Ð¿Ð¾Ð´Ð»Ð¾Ð¶ÐºÐµ SiC Ð´Ð»Ñ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð¹ Ð»Ð¸ÑÐ¾Ð³ÑÐ°ÑÐ¸Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Development of technology for producing thin films of Al and Ti on a SiC substrate for electron lithography
Creators: name: ÐÐ°Ð³Ð´Ð°ÑÐ°ÑÑÐ½, ÐÐ°ÑÐµÐ½
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»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾-Ð»ÑÑÐµÐ²Ð°Ñ Ð»Ð¸ÑÐ¾Ð³ÑÐ°ÑÐ¸Ñ
ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾-Ð»ÑÑÐµÐ²Ð¾Ðµ Ð¸ÑÐ¿Ð°ÑÐµÐ½Ð¸Ðµ
ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ðµ Ð¸ÑÐ¿Ð°ÑÐµÐ½Ð¸Ðµ
Ð·Ð°ÑÑÐ´ÐºÐ° Ð´Ð¸ÑÐ»ÐµÐºÑÑÐ¸ÐºÐ°
ÑÐ¾Ð½ÐºÐ¸Ðµ Ð¿Ð»ÐµÐ½ÐºÐ¸
electron beam lithography
electron beam evaporation
thermal evaporation
dielectric charging
thin films

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸Ð·Ð»Ð¾Ð¶ÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ñ Ð¾ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾-Ð»ÑÑÐµÐ²Ð¾Ð¹ Ð»Ð¸ÑÐ¾Ð³ÑÐ°ÑÐ¸Ð¸ Ð¸ ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ð¼Ñ Ð¼ÐµÑÐ¾Ð´Ñ Ð½Ð°Ð½ÐµÑÐµÐ½Ð¸Ñ ÑÐ¾Ð½ÐºÐ¸Ñ Ð¿Ð»ÐµÐ½Ð¾Ðº. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð° Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ð°, Ð²Ð¾Ð·Ð½Ð¸ÐºÐ°ÑÑÐ°Ñ Ð¿ÑÐ¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð´Ð¸ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¿Ð¾Ð´Ð»Ð¾Ð¶ÐµÐº Ð² ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾-Ð»ÑÑÐµÐ²Ð¾Ð¹ Ð»Ð¸ÑÐ¾Ð³ÑÐ°ÑÐ¸Ð¸ Ð¸ Ð¼ÐµÑÐ¾Ð´ ÐµÐµ ÑÐµÑÐµÐ½Ð¸Ñ. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ñ Ð½Ð°Ð½ÐµÑÐµÐ½Ð¸Ñ ÑÐ¾Ð½ÐºÐ¸Ñ Ð¼ÐµÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿Ð»ÐµÐ½Ð¾Ðº Ð¼ÐµÑÐ¾Ð´Ð°Ð¼Ð¸ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾-Ð»ÑÑÐµÐ²Ð¾Ð³Ð¾ Ð¸ ÑÐµÐ·Ð¸ÑÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ Ð¸ÑÐ¿Ð°ÑÐµÐ½Ð¸Ñ.
description: This paper presents the basics of electron-beam lithography and thermal method of applying thin films. The problem arising from the use of dielectric substrates in electron-beam lithography and the method of its solution are considered. The technology of application of thin metal films by electron beam and resistive evaporation.
Splitting the Nariai cosmology
Creators: name: Halilsoy, Mustafa
name: Hsieh, Chia-Li
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: At certain time the Nariai spacetime is split into two parts. The resulting cosmology consists of the original Nariai and a new component with topology $(flat)_2\times S^2$, that is equivalent to a cloud of strings. We explore the properties of our hybrid cosmological model.
Algorithme d'aides à la décision pour Optimiser l'Ordonnancement des tâches de maintenance en temps-réel
Creators: name: Aboussalim, Aissam
name: Mediouni, Mohamed
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: The approach presented in this article is a contribution to research relating to the optimization of the scheduling of the spots of maintenance. This work answers the following objectives: Decision in time-reality (planning and scheduling), Allowance/assignment of resources, To ensure a minimum availability required, To minimize times delay while inserting the dynamic tasks "corrective maintenance"
Початок роботи з профілем науковця в ORCID (майстер-клас)
Creators: name: Kaliuzhna, Nataliia
Publisher: name: Zenodo
Year: 2021
Subjects: Open Researcher and Contributor ID

description: Реєстрація профілю науковця в ORCID; Підтвердження адреси електронної пошти; Зміна паролю до профілю; Налаштування профілю науковця ORCID; Налаштування видимості профілю в системі ORCID; Альтернативні облікові записи для входу в Google, Facebook або через Вашу установу; Як видаляти дублікат, якщо випадково зареєстрували декілька профілів в ORCID.
Developing eDNA tools for assessing sea turtle habitat use in Massachusetts coastal waters
Creators: name: Clark, Elizabeth Ava
Publisher: name: University of Massachusetts Amherst
Year: 2025

New England coastal waters provide important seasonal foraging habitat for sea turtles but also harbor anthropogenic threats such as vessel strikes and fishing gear entanglement. Understanding the spatio-temporal distribution of these endangered species is critical for effective protection; however, traditional survey methods can be costly and logistically challenging. Here, we leveraged environmental DNA (eDNA) from ocean water samples to explore its potential for assessing seasonal and spatial presence of Kemp‚Äôs ridley (Lepidochelys kempii) and leatherback (Dermochelys coriacea) sea turtles in waters around Cape Cod, MA. Species-specific qPCR assays for Kemp‚Äôs ridley and leatherback turtles were developed and validated, demonstrating high specificity and sensitivity. We further explored key methodological factors influencing eDNA detection, finding that smaller filter pore sizes (0.2 Œºm) yielded higher eDNA recovery than larger filters (1.0 Œºm), while repeated freeze/thaw cycles degraded DNA integrity and reduced detection efficiency. Additionally, a qPCR assay for loggerhead turtles (Caretta caretta) was developed and validated in silico, expanding the eDNA toolkit for detecting sea turtles. Both Kemp‚Äôs ridley and leatherback assays successfully detected target DNA in situ, including in samples where turtles were not visually present. These findings demonstrate the potential of eDNA technology to complement traditional surveys by improving the understanding of sea turtle distributions and informing conservation strategies in New England‚Äôs coastal waters.
A model for the degradation of polyimides due to oxidation
Creators: name: Karra, Satish
name: Rajagopal, K. R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences
subject: 74D10

description: Polyimides, due to their superior mechanical behavior at high temperatures, are used in a variety of applications that include aerospace, automobile and electronic packaging industries, as matrices for composites, as adhesives etc. In this paper, we extend our previous model in [S. Karra, K. R. Rajagopal, Modeling the non-linear viscoelastic response of high temperature polyimides, Mechanics of Materials, In press, doi:10.1016/j.mechmat.2010.09.006], to include oxidative degradation of these high temperature polyimides. Appropriate forms for the Helmholtz potential and the rate of dissipation are chosen to describe the degradation. The results for a specific boundary value problem, using our model compares well with the experimental creep data for PMR-15 resin that is aged in air.
description: 13 pages, 2 figures, submitted to Mechanics of Time-dependent Materials
О влиянии температуры на процесс нитрования 2-этилгексанола в установке с центробежным массообменным аппаратом
Creators: name: Карпов, А.Г.
name: Василишин, М.С.
name: Кухленко, А.А.
name: Иванов, О.С.
name: Иванова, Д.Б.
name: Орлов, С.Е.
name: Лайлов, С.В.
name: Беляев, В.Н.
name: Григоренко, А.П.
Publisher: name: Институт проблем химико-энергетических технологий
Year: 2020
Subjects: УСТАНОВКА С ЦЕНТРОБЕЖНЫМ МАССООБМЕННЫМ АППАРАТОМ
НИТРОВАНИЕ 2-ЭТИЛГЕКСАНОЛА
ВЛИЯНИЕ ТЕМПЕРАТУРЫ НА ПРОЦЕСС

description: Исследовано влияние температур нитросмеси и 2-этилгексанола на выход и чистоту 2-этилгексилнитрата, получаемого в непрерывно действующей установке с центробежным массообменным аппаратом (нитратором). Установлено, что повышение температуры реагентов от 12 до 20 оС позволяет обеспечить повышение выхода и чистоты целевого продукта. С использованием уравнений материального баланса выполнена оценка полноты химического взаимодействия в нитраторе и в змеевиковом теплообменнике
Milestone 5: TRL5 achieved- M16 Prototype components / breadboard validated in a simulated or representative environment verified by US Air Force Research Laboratory TRL calculator
Creators: name: National Oceanography Centre (NOC)
Publisher: name: Zenodo
Year: 2022
Subjects: eDNA sampler
microplastics
imaging
optical sensor
bio-assay
biogeochemical sensor
microcytometer

description: This public milestone report (milestone 5) of the H2020 project TechOceanS outlines the successful achievement of Technology Readiness Level (TRL) 5 for several components relating to ocean sensing technologies being developed through the project. For further information please visit techoceans.eu.
Würdevoll leben heisst würdevoll sterben: Eine Forschungsarbeit über die Rolle und Position der Sozialen Arbeit bezüglich des assistierten Suizides bei Menschen mit einer nicht letalen Diagnose
Creators: name: Reinschmidt, Elena
name: Werren, Chantal
Publisher: name: Zenodo
Year: 2021

description: Menschen, welche einen assistierten Suizid in Anspruch nehmen möchten, ohne tödlich krank zu sein, finden sich in einer herausfordernden Situation wieder. Der Einfluss der Angehörigen, sowie der Gesellschaft vermindert oft die benötigte Autonomie bei der Entscheidung. Die Rolle und Haltung der Sozialen Arbeit bezüglich des assistierten Suizides bei Menschen mit einer nicht letalen Diagnose, ist bisher nicht bekannt. AvenirSocial hat bis zum heutigen Tag keine Stellungnahme veröffentlicht. Wie mit dem Wunsch einer Person einen assistierten Suizid in Anspruch zu nehmen umzugehen ist, wurde bisher primär in der Medizinethik und im Recht diskutiert. Anhand von Leitfadeninterviews mit Expert*innen aus den Bezugswissenschaften Ethik, Recht und Praxis der Sozialen Arbeit konnte eine Datenerhebung bezüglich der Haltung und Rolle der Sozialen Arbeit erhoben werden. Dabei wurde ersichtlich, dass die Soziale Arbeit auf der Mikro- Makro- und Mesoebene ansetzen muss und für die Betroffenen anwaltschaftlich einzustehen hat. Um Menschen mit einem Wunsch zum gewählten Freitod optimal unterstützen zu können, braucht es einen gesellschaftlichen Diskurs bezüglich des Themas assistierter Suizid. Die größte Gefahr der Liberalisierung des assistierten Suizides birgt der Umstand, dass es zu einer implizierten Norm für kranke und alte Menschen werden könnte.
description: + Code Diss LU: hslusa basp + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Sozialpädagogik, 2021 + NL-Code: NLLUHSA202110
Development of energy storage systems capable of Cu extraction from CuFeS₂
Creators: name: Deen, Kashif Mairaj
Publisher: name: University of British Columbia
Year: 2019

description: Two hybrid energy storage systems, i.e., a fixed bed flow cell (FBFC) and a tri-functional battery (TFB) are introduced, which use either synthetic CuFeS₂ or a mineral concentrate (MC) as electrode materials and a source of Cu. In the FBFC, the composite negative electrode is CuFeS₂ or MC sandwiched in graphite felt (GF). The Fe^II^/Fe^III^ redox reaction (in the presence of Cu^II^) occurs on a GF positive electrode. Under optimized conditions, the presence of CuFeS₂ resulted in a continuous increase in the specific capacity of the FBFC from 9 to 48 mAh g-¹ and in the specific energy from 2 to 6.3 Wh kg-¹ in 500 galvanostatic charge/discharge (GCD) cycles. However, in the same setup, the MC had an increase in the specific energy from 3.5 to 8.5 Wh kg-¹ in 400 GCD cycles. Advantageously, 10.3 and 12.7% Cu is extracted from the synthetic CuFeS₂ and MC, respectively. In the TFB, two energy intensive processes, Cu extraction from CuFeS₂ and Zn electrowinning, are integrated for energy storage. In this setup, the positive slurry electrode (PSE) composed of CuFeS₂ or MC mixed with activated carbon (AC) in H₂SO₄ was separated by a membrane from the circulating Zn²⁺ solution in the negative compartment. The Zn deposition/re–dissolution and commencement of reversible reactions in the PSE during GCD cycles are responsible for energy storage akin to a battery. The maximum 388 Wh kg-¹ specific energy (1.13 Wh l-¹) during the 1st discharge cycle decreased to ≈50 Wh kg-¹ over the subsequent 14 GCD cycles. The low coulombic (≈50%) and energy (~40%) efficiencies are offset by ~23% Cu extraction from CuFeS₂ in 100 GCD cycles. The cell potential of ~0.95 V and potential efficiency (>70%) imply that the TFB can be used as a hybrid energy storage device. Using MC in the TFB-M, a monotonic increase in energy density from 2.6 to 36.2 mWh l-¹ at low energy efficiency (between 14–43%) was obtained for the initial 14 GCD cycles. On the other hand, in 100 GCD cycles, ~16.1% Cu was also extracted from the MC.
Convergence Speed of the Consensus Algorithm with Interference and Sparse Long-Range Connectivity
Creators: name: Vanka, Sundaram
name: Haenggi, Martin
name: Gupta, Vijay
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We analyze the effect of interference on the convergence rate of average consensus algorithms, which iteratively compute the measurement average by message passing among nodes. It is usually assumed that these algorithms converge faster with a greater exchange of information (i.e., by increased network connectivity) in every iteration. However, when interference is taken into account, it is no longer clear if the rate of convergence increases with network connectivity. We study this problem for randomly-placed consensus-seeking nodes connected through an interference-limited network. We investigate the following questions: (a) How does the rate of convergence vary with increasing communication range of each node? and (b) How does this result change when each node is allowed to communicate with a few selected far-off nodes? When nodes schedule their transmissions to avoid interference, we show that the convergence speed scales with $r^{2-d}$, where $r$ is the communication range and $d$ is the number of dimensions. This scaling is the result of two competing effects when increasing $r$: Increased schedule length for interference-free transmission vs. the speed gain due to improved connectivity. Hence, although one-dimensional networks can converge faster from a greater communication range despite increased interference, the two effects exactly offset one another in two-dimensions. In higher dimensions, increasing the communication range can actually degrade the rate of convergence. Our results thus underline the importance of factoring in the effect of interference in the design of distributed estimation algorithms.
description: 27 pages, 4 figures
Cooling atom-cavity systems into entangled states
Creators: name: Busch, J.
name: De, S.
name: Ivanov, S. S.
name: Torosov, B. T.
name: Spiller, T. P.
name: Beige, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Generating entanglement by simply cooling a system into a stationary state which is highly entangled has many advantages. Schemes based on this idea are robust against parameter fluctuations, tolerate relatively large spontaneous decay rates, and achieve high fidelities independent of their initial state. A possible implementation of this idea in atom-cavity systems has recently been proposed by Kastoryano et al. [Phys. Rev. Lett. 106, 090502 (2011)]. Here we propose an improved entanglement cooling scheme for two atoms inside an optical cavity which achieves higher fidelities for comparable single-atom cooperativity parameters C. For example, we predict fidelities above 90% even for C as low as 20 without requiring individual laser addressing and without having to detect photons.
description: 12 pages, 11 figures
An analysis to measure the skills of university graduates of Bangladesh and its significances to the employer’s demand of skill
Creators: name: Chakma, Gourab
Publisher: name: figshare
Year: 2022
Subjects: subject: 150305 Human Resources Management
subject: FOS: Economics and business

description: This is an article published in International Journal of research in human resource management. The work is about measuring graduates' skills which are crucial to academicians and employers. The analysis also indicates the differences between the perception between them which can be linked to the cause of unemployment problem of Bangladesh.
Effect of Nanoparticle Size on the Morphology of Adsorbed Surfactant Layers
Creators: name: Lugo, Dersy
name: Oberdisse, Julian
name: Lapp, Alain
name: Findenegg, Gerhard
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The surface aggregates structure of dimethyldodecylamine-N-oxide (C12DAO) in three silica dispersions of different particle sizes (16 - 42 nm) was studied by small-angle neutron scattering (SANS) in a H2O/D2O solvent mixture matching the silica. At the experimental conditions (pH 9) the surfactant exists in its nonionic form and the structure of the adsorbed layer is not affected by added electrolyte. It is found that C12DAO forms spherical surface micelles of 2 nm diameter on the 16 nm silica particles, but oblate ellipsoidal surface micelles are formed on the 27 and 42 nm particles. The dimensions of these oblate surface aggregates (minor and major semi-axes Rn and Rlat) are similar to those of C12DAO micelles in the aqueous solutions. It is concluded that the morphological transition from spherical to ellipsoidal surface aggregates is induced by the surface curvature of the silica particles. A comparison of the shape and dimensions of the surface aggregates formed by C12DAO and C12E5 on the 16 nm silica particles demonstrates that the nature of the surfactant head group does not determine the morphology of the surface aggregates, but has a strong influence on the number of surface aggregates per particle, due to the different interactions of the head groups with the silica surface.
Halt! Keine Gewalt in jugendlichen Liebesbeziehungen: Präventive Massnahmen für die Offene Jugendarbeit
Creators: name: Rolli, Jasmin
Publisher: name: Zenodo
Year: 2021

description: Diese Bachelorarbeit von Jasmin Rolli befasst sich mit Gewalt in jugendlichen Liebesbeziehungen und heisst: «Halt! Keine Gewalt in jugendlichen Liebesbeziehungen. Präventive Massnahmen für die Offene Jugendarbeit». Die Fragestellung lautet: «Welche konkreten Massnahmen kann die Offene Jugendarbeit ergreifen, um präventiv gegen Gewalt in jugendlichen Paarbeziehungen vorzugehen?». Durch eine literarische Auseinandersetzung mit den aktuellen Forschungsergebnissen zu Jugendalter, Paarbeziehungen, Gewalt und Prävention wurde erkannt, dass Gewalt Konsequenzen entgegengestellt werden muss. Für gewaltausübende Personen (Täter*innen) ist es zentral zu lernen, dass Gewalt keine tolerierbare Handlung ist und dass sie Verantwortung für ihr Verhalten übernehmen müssen. Dies muss von Jugendarbeiter*innen, der Offenen Jugendarbeit und der Gesellschaft vorgelebt werden. Darüber hinaus ist es wichtig zu erkennen, das gewaltausübende Personen selbst oft Gewalt erleben, ebenfalls darunter leiden und Hilfe benötigen. Eine Auseinandersetzung mit Gewalt, ihren Ursachen und Folgen sowie klare Normen sind wichtig für die Entwicklung von Jugendlichen. Zusätzlich hat Gewalt in jugendlichen Liebesbeziehungen eine starke geschlechtliche Komponente. Die Auseinandersetzung mit Rollenanforderungen und Geschlechtsvorurteilen ist ebenfalls elementar für die Prävention. Daher ist die Prävention von Gewalt in jugendlichen Liebesbeziehungen ein Thema, dass die ganze Gesellschaft betrifft und wo Jugendarbeiter*innen einen erheblichen Beitrag leisten können.
description: + Code Diss LU: hslusa bask + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Soziokultur, 2021 + NL-Code: NLLUHSA202110
Lamb Shift in Muonic Hydrogen. II. Analysis of the Discrepancy of Theory and Experiment
Creators: name: Jentschura, U. D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Currently, both the g factor measurement of the muon as well as the Lamb shift 2S-2P measurement in muonic hydrogen are in disagreement with theory. Here, we investigate possible theoretical explanations, including proton structure effects and small modifications of the vacuum polarization potential. In particular, we investigate a conceivable small modification of the spectral function of vacuum polarization in between the electron and muon energy scales due to a virtual millicharged particle and due to an unstable vector boson originating from a hidden sector of an extended standard model. We find that a virtual millicharged particle which could explain the muonic Lamb shift discrepancy alters theoretical predictions for the muon anomalous magnetic moment by many standard deviations and therefore is in conflict with experiment. Also, we find no parameterizations of an unstable virtual vector boson which could simultaneously explain both "muonic" discrepancies without significantly altering theoretical predictions for electronic hydrogen, where theory and experiment currently are in excellent agreement. A process-dependent correction involving electron screening is evaluated to have the right sign and order-of-magnitude to explain the observed effect in muonic hydrogen. Additional experimental evidence from light muonic atoms and ions is needed in order to reach further clarification.
description: 19 pages; LaTeX; literature references have been updated at the time of submission to a scientific journal
Characterizing the atmospheres of transiting rocky planets around late type dwarfs
Creators: name: Pallé, E.
name: Osorio, M. R. Zapatero
name: Muñoz, A. García
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Visible and near-infrared spectra of transiting hot Jupiter planets have recently been observed, revealing some of the atmospheric constituents of their atmospheres. In the near future, it is probable that primary and secondary eclipse observations of Earth-like rocky planets will also be achieved. The characterization of the Earth's transmission spectrum has shown that both major and trace atmospheric constituents may present strong absorption features, including important bio-markers such as water, oxygen and methane. Our simulations using a recently published empirical Earth's transmission spectrum, and the stellar spectra for a variety of stellar types, indicate that the new generation of extremely large telescopes, such as the proposed 42-meter European Extremely Large Telescope(E-ELT), could be capable of retrieving the transmission spectrum of an Earth-like planet around very cool stars and brown dwarfs (Teff < 3100 K). For a twin of Earth around a star with Teff around 3100 K (M4), for example, the spectral features of water vapor, methane, carbon dioxide, and oxygen in the wavelength range between 0.9 and 2.4 micron can simultaneously be detected within a hundred hours of observing time, or even less for a late-M star. Such detection would constitute a proof for the existence of life in that planet. The detection time can be reduced to a few hours for a super-Earth type of planet with twice the Earth's radius.
description: 14 pages, 6 figures included
Training Tree Workers to Prune: How education impacts the health of the urban canopy in Massachusetts
Creators: name: Siarnacki, Tes
Publisher: name: University of Massachusetts Amherst
Year: 2025

As urban populations expand and climate change increases incidents of extreme weather, cities need sustainable ways to mitigate and adapt to these effects while supporting the health of their populations. Urban trees are a critical component of climate resilience and public health, but tree maintenance can be expensive and often beyond strained municipal budgets. Pruning trees in urban landscapes, especially early in a tree‚Äôs life, can result in savings over the long term. To prune a young tree effectively, minimizing injury to the tree and maximizing structural and environmental benefits, requires a combination of knowledge and skills. Municipalities have different ways of meeting this demand for skilled labor, and these decisions affect the outcomes for the health and longevity of the urban forest. To define the population of municipal workers who are pruning trees and determine the qualities and quantity of the tree pruning training they receive, I surveyed tree wardens throughout Massachusetts for information about pruning cycles, the workers pruning trees, and training the workers receive. Using research-based best practices, I developed a rubric that can be used to analyze training for essential instructional elements. The survey established that both Massachusetts tree wardens and pruning workers have a range of backgrounds. A large proportion of pruning workers are not arboricultural professionals, and this underscores the importance of effective training. Most training occurs on-the-job, led by a certified arborist. The fusion of the existing content-area expertise of the trainer with instructional techniques will result in more effective training with better outcomes for municipal trees. Successful training elements can be generalized and applied in other locations, resulting in a healthier, more mature urban canopy, a concomitant increase in environmental benefits, and cost savings that can be reinvested in urban forest management.
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÑÑÐ°ÑÐµÐ³Ð¸Ð¸ Ð¸Ð½ÑÐµÑÐ½ÐµÑ-Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð° Ð´Ð»Ñ Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ ÑÑÐ»ÑÐ³ ÑÑÐ½ÐºÐ° Ð½ÐµÐ´Ð²Ð¸Ð¶Ð¸Ð¼Ð¾ÑÑÐ¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Development of the Internet marketing strategy for the promotion of real estate market services
Creators: name: ÐÐµÐ³Ð¾ÑÑÐ°ÐµÐ²Ð°, Ð®Ð»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: ÐÐ½ÑÐµÑÐ½ÐµÑ
Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³
Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð¾Ð²Ð°Ñ ÑÑÑÐ°ÑÐµÐ³Ð¸Ñ
Ð°Ð³ÐµÐ½ÑÑÑÐ²Ð¾ Ð½ÐµÐ´Ð²Ð¸Ð¶Ð¸Ð¼Ð¾ÑÑÐ¸
Ð½ÐµÐ´Ð²Ð¸Ð¶Ð¸Ð¼Ð¾ÑÑÑ
Ð´ÐµÐ²ÐµÐ»Ð¾Ð¿ÐµÑÑ
Ð¸Ð½ÑÐµÑÐ½ÐµÑ-Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³

description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ Ð°Ð³ÐµÐ½ÑÑÑÐ²Ð¾ Ð½ÐµÐ´Ð²Ð¸Ð¶Ð¸Ð¼Ð¾ÑÑÐ¸ "Ð¢ÑÐµÐ½Ð´".
ÐÑÐµÐ´Ð¼ÐµÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ â ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¸ Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð°ÑÐ¿ÐµÐºÑÑ Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ðµ ÑÑÐ»ÑÐ³Ð¸ Ð² Ð¸Ð½ÑÐµÑÐ½ÐµÑ Ð¿ÑÐ¾ÑÑÑÐ°Ð½ÑÑÐ²Ðµ.
Ð¦ÐµÐ»ÑÑ Ð¼Ð°Ð³Ð¸ÑÑÐµÑÑÐºÐ¾Ð¹ Ð´Ð¸ÑÑÐµÑÑÐ°ÑÐ¸Ð¸ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÑÑÐ°ÑÐµÐ³Ð¸Ð¸ Ð¸Ð½ÑÐµÑÐ½ÐµÑ-Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð° Ð´Ð»Ñ Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ ÑÑÐ»ÑÐ³ ÑÑÐ½ÐºÐ° Ð½ÐµÐ´Ð²Ð¸Ð¶Ð¸Ð¼Ð¾ÑÑÐ¸. 
ÐÐ·ÑÑÐµÐ½Ñ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð°ÑÐ¿ÐµÐºÑÑ Ð¸Ð½ÑÐµÑÐ½ÐµÑ -Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð°.
Ð¡ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐ¾ - Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð±ÑÐ»Ð¾ Ð²ÑÑÐ²Ð»ÐµÐ½Ð¾ ÑÐµÐºÑÑÐµÐµ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ðµ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ðµ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ.
SWOT -Ð°Ð½Ð°Ð»Ð¸Ð· Ð¿Ð¾Ð·Ð²Ð¾Ð»Ð¸Ð» Ð¾Ð¿ÑÐµÐ´ÐµÐ»Ð¸ÑÑ ÑÐ¸Ð»ÑÐ½ÑÐµ Ð¸ ÑÐ»Ð°Ð±ÑÐµ ÑÑÐ¾ÑÐ¾Ð½Ñ Ð°Ð³ÐµÐ½ÑÑÑÐ²Ð° Ð½ÐµÐ´Ð²Ð¸Ð¶Ð¸Ð¼Ð¾ÑÑÐ¸..
Ð Ð¾ÑÐ½Ð¾Ð²Ðµ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÑÐ½ÐºÐ° Ð½ÐµÐ´Ð²Ð¸Ð¶Ð¸Ð¼Ð¾ÑÑÐ¸ Ð±ÑÐ»Ð¸ Ð²ÑÐ´ÐµÐ»ÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ ÐºÐ¾Ð½ÐºÑÑÐµÐ½ÑÑ ÐÐ Ð¢ÑÐµÐ½Ð´.
Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° ÑÑÑÐ°ÑÐµÐ³Ð¸Ñ Ð¸Ð½ÑÐµÑÐ½ÐµÑ- Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ. ÐÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð° ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð½ÑÑ Ð¼ÐµÑ, Ð´Ð»Ñ ÑÐ»ÑÑÑÐµÐ½Ð¸Ñ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ð³Ð¾ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ñ Ð²ÑÐ±ÑÐ°Ð½Ð½Ð¾Ð³Ð¾ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ.
description: The object of the study is the real estate Agency "Trend".
The subject of research â theoretical and practical aspects of the promotion of services in the Internet space.
The aim of the master's thesis is to develop an Internet marketing strategy for the promotion of real estate market services. 
Theoretical aspects of Internet marketing are studied.
By means of the economic and organizational analysis the current financial condition of the enterprise was revealed.
SWOT-analysis allowed to determine the strengths and weaknesses of the real estate Agency..
The analysis of the real estate market was based on the main competitors of the an Trend.
The strategy of Internet promotion has been developed. The efficiency of the proposed measures to improve the financial condition of the selected enterprise.
Inverse Additive Problems for Minkowski Sumsets I
Creators: name: Freiman, G. A.
name: Grynkiewicz, D.
name: Serra, O.
name: Stanchescu, Y. V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Number Theory (math.NT)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 11P70, 52A20, 52A40, 26B25

description: We give the structure of discrete two-dimensional finite sets $A,\,B\subseteq \R^2$ which are extremal for the recently obtained inequality $|A+B|\ge (\frac{|A|}{m}+\frac{|B|}{n}-1)(m+n-1)$, where $m$ and $n$ are the minimum number of parallel lines covering $A$ and $B$ respectively. Via compression techniques, the above bound also holds when $m$ is the maximal number of points of $A$ contained in one of the parallel lines covering $A$ and $n$ is the maximal number of points of $B$ contained in one of the parallel lines covering $B$. When $m,\,n\geq 2$, we are able to characterize the case of equality in this bound as well. We also give the structure of extremal sets in the plane for the projection version of Bonnesen's sharpening of the Brunn-Minkowski inequality: $μ(A+B)\ge (μ(A)/m+μ(B)/n)(m+n)$, where $m$ and $n$ are the lengths of the projections of $A$ and $B$ onto a line.
description: 30 pages, submitted
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ð¹ Ð¿Ð¾ ÑÐ»ÑÑÑÐµÐ½Ð¸Ñ ÑÑÐ»Ð¾Ð²Ð¸Ð¹ ÑÑÑÐ´Ð° ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÐºÐ¾Ð² Ð¼ÐµÐ³Ð°Ð¼Ð°ÑÐºÐµÑÐ° Ð¿ÑÐ¸ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ð¸ ÑÐ°Ð±Ð¾Ñ ÑÑÐ¾Ñ
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: Ðevelopment of measures to improve the working conditions of megamarket employees when performing work standing up
Creators: name: Ð¡ÐµÑÐ³ÐµÐµÐ², ÐÐ½Ð´ÑÐµÐ¹
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: ÑÑÐ»Ð¾Ð²Ð¸Ñ ÑÑÑÐ´Ð°
ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½Ð°Ñ Ð¾ÑÐµÐ½ÐºÐ° ÑÑÐ»Ð¾Ð²Ð¸Ð¹ ÑÑÑÐ´Ð°
ÑÐ°Ð±Ð¾ÑÐ° Ð² Ð¿Ð»Ð¾Ð¶ÐµÐ½Ð¸Ð¸ ÑÑÐ¾Ñ
Ð¼ÐµÐ³Ð°Ð¼Ð°ÑÐºÐµÑ
Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ñ Ð¿Ð¾ Ð¾Ñ ÑÐ°Ð½Ðµ ÑÑÑÐ´Ð°
working conditions
special assessment of working conditions
working in a standing position
megamarket
labor protection measures

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ñ ÑÑÐ»Ð¾Ð²Ð¸Ñ ÑÑÑÐ´Ð° ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÐºÐ¾Ð² ÑÐ¸Ð¿Ð¸ÑÐ½Ð¾Ð³Ð¾ Ð¼ÐµÐ³Ð°Ð¼Ð°ÑÐºÐµÑÐ°. Ð¸Ð·ÑÑÐµÐ½Ð½Ð°Ñ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ñ Ð¿Ð¾Ð¼Ð¾Ð³Ð°ÐµÑ ÑÐ²Ð¸Ð´ÐµÑÑ Ð½ÐµÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð° Ð² ÑÐ¾Ð·Ð´Ð°Ð½Ð½ÑÑ ÑÑÐ»Ð¾Ð²Ð¸Ñ ÑÑÑÐ´Ð° Ð½Ð° Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ð¸. ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð¼ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ð¹ Ð¿Ð¾ Ð¾ÑÑÐ°Ð½Ðµ ÑÑÑÐ´Ð° Ð¸ ÑÐ°ÑÑÐµÑ Ð¸Ñ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¸ ÑÐ¾ÑÐ¸Ð°Ð»ÑÐ½Ð¾Ð¹ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸. Ð¿Ð¾ÑÐ»Ðµ Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ñ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ð¹ Ð¿Ð¾ ÑÐ»ÑÑÑÐµÐ½Ð¸Ñ ÑÑÐ»Ð¾Ð²Ð¸Ð¹ ÑÑÑÐ´Ð° Ð² ÑÐ¸Ð¿Ð¸ÑÐ½Ð¾Ð¼ Ð¼ÐµÐ³Ð°Ð¼Ð°ÑÐºÐµÑÐµ, Ð±ÑÐ»Ð° Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ð° Ð²Ð½ÐµÐ¿Ð»Ð°Ð½Ð¾Ð²Ð°Ñ ÑÐ¾ÑÑ, Ð² ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ ÐºÐ¾ÑÐ¾ÑÐ¾Ð¹ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÐ¼ÑÐ¼ ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÐºÐ°Ð¼ Ð±ÑÐ» Ð¿ÑÐ¸ÑÐ²Ð¾ÐµÐ½ Ð´Ð¾Ð¿ÑÑÑÐ¸Ð¼ÑÐ¹ ÐºÐ»Ð°ÑÑ ÑÑÐ»Ð¾Ð²Ð¸Ð¹ ÑÑÑÐ´Ð° Ð¸ Ð¸ Ð¸ÑÑÐµÐ·Ð»Ð° Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ð¾ÑÑÑ Ð² Ð´Ð¾Ð¿Ð»Ð°ÑÐ°Ñ Ð·Ð° Ð²ÑÐµÐ´Ð½ÑÐµ ÑÑÐ»Ð¾Ð²Ð¸Ñ ÑÑÑÐ´Ð°.
description: The graduate qualification work is analyzes the working conditions of employees of a typical megamarket. the studied information helps to see imperfections in the created working conditions at the enterprise. the result of this work is the development of measures for labor protection and the calculation of their economic and social efficiency. after implementing measures to improve working conditions in a typical megamarket, an unscheduled special assessment of working conditions was made, as a result of which the employees in question were assigned an acceptable class of working conditions and there was no need for additional payments for harmful working conditions.
A hyperbolastic type-I diffusion process: Parameter estimation bymeans of the firefly algorithm
Creators: name: Barrera, Antonio
name: Román-Román, Patricia
name: Torres-Ruiz, Francisco
Publisher: name: arXiv
Year: 2024
Subjects: subject: Methodology (stat.ME)
subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 00-01, 99-00

description: A stochastic diffusion process, whose mean function is a hyperbolastic curve of type I, is presented. Themain characteristics of the process are studied and the problem of maximum likelihood estimation forthe parameters of the process is considered. To this end, the firefly metaheuristic optimization algo-rithm is applied after bounding the parametric space by a stagewise procedure. Some examples basedon simulated sample paths and real data illustrate this development.
description: 26 pages, 13 figures
On symmetries and conservation laws of a Gardner equation involving arbitrary functions
Creators: name: de la Rosa, Rafael
name: Gandarias, María Luz
name: Bruzón, María de los Santos
Publisher: name: arXiv
Year: 2024
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this work we study a generalized variable-coefficient Gardner equation from the point of view of Lie symmetries in partial differential equations. We find conservation laws by using the multipliers method of Anco and Bluman which does not require the use of a variational principle. We also construct conservation laws using Ibragimov theorem which is based on the concept of adjoint equation for nonlinear differential equations.
description: 19 pages. arXiv admin note: text overlap with arXiv:2402.02601
Investigating the Role of the Nrf2a Pathway on the Extension of the Exocrine Pancreatic Tail, Exocrine Pancreas Function, and the Glutathione Response in Perfluorobutanesulfonic Acid Developmentally Exposed Zebrafish (Danio rerio)
Creators: name: Gridley, Charlotte
Publisher: name: University of Massachusetts Amherst
Year: 2025

Per-and poly-fluoroalkyl substances (PFAS) are ubiquitous, persistent environmental contaminants associated with adverse health effects involving oxidative stress. While some longer-chain PFAS chemicals have been phased out, the environmental concentrations of shorter-chain versions like perfluorobutanesulfonic acid (PFBS) are increasing. Previous studies show that zebrafish embryos exposed to PFBS have developmental deformities including increased incidence of stunted pancreata. However, the functional impact and mechanisms behind this phenotype are poorly understood. The transcription factor Nrf2a regulates the adaptive transcriptional response to oxidative stress, including several enzymes involved in the synthesis and utilization of the endogenous antioxidant glutathione. This work aims to investigate the impacts of developmental PFBS exposure on the pancreas, oxidative stress, and the role of Nrf2a. Homozygous wildtype or mutant zebrafish embryos with a mutation in the DNA binding domain were exposed to PFBS for 3-96 hours post fertilization (hpf), imaged at 96 hpf or grown to 9 days post fertilization (dpf) in water without PFBS, and imaged. At 9 dpf, mutant larvae had shorter exocrine pancreases compared to wild-type larvae with the same PFBS treatment, indicating this phenotype likely involves redox stress. To assess exocrine pancreas function, lipase and protease activity were measured. At 9 dpf, both lipase and protease activity weren‚Äôt significantly different between wild-type and mutant larvae, regardless of PFBS exposure. To assess the effect of PFBS exposure on glutathione utilization, fish were exposed to PFBS for 3-96 hpf, rinsed, incubated in 200 ŒºM monochlorobimane (MCB) for 1 hour, and imaged. Fluorescence was measured for six regions, with a significant difference in glutathione utilization in the eye lens, but not the pancreas. Thus, while Nrf2a plays a protective role in exocrine pancreas development during PFBS exposures, it may be due to other antioxidant systems. This study offers insights into the potential role of Nrf2a in exocrine pancreas extension, exocrine pancreas function, and glutathione utilization with developmental PFBS exposure in zebrafish.
Equivariant Morita equivalences between Podles' spheres
Creators: name: De Commer, K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B37 (Primary) 81R50, 46L08 (Secondary)

description: We show that the family of Podles' spheres is complete under equivariant Morita equivalence (with respect to the action of quantum SU(2)), and determine the associated orbits. We also give explicit formulas for the actions which are equivariantly Morita equivalent with the quantum projective plane. In both cases, the computations are made by examining the localized spectral decomposition of a generalized Casimir element.
description: 20 pages
title: Ð¡Ð¿ÐµÐºÑÑ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ð¹ Ð·Ð°Ð¼ÐºÐ½ÑÑÑÑ ÑÑÑÑÐ½ Ð² ÑÐ¾ÑÑÐ°Ð²Ð½Ð¾Ð¹ ÑÑÐ¿ÐµÑÐºÐ¾Ð½ÑÐ¾ÑÐ¼Ð½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Ground state spectrum of closed strings in composite superconformal model
Creators: name: Ð¡ÐµÐ¸Ð´Ð¾Ð², Ð¢Ð¸Ð¼Ñ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ÐµÐ¾ÑÐ¸Ñ ÑÑÑÑÐ½
ÑÐ¾ÑÑÐ°Ð²Ð½Ð°Ñ ÑÑÑÑÐ½Ð°
Ð³ÑÐ°Ð²Ð¸ÑÐ¾Ð½
ÑÑÐ¿ÐµÑÐºÐ¾Ð½ÑÐ¾ÑÐ¼Ð½ÑÐµ ÑÑÑÑÐ½Ñ
ÐµÐ´Ð¸Ð½Ð°Ñ ÑÐµÐ¾ÑÐ¸Ñ
ÑÐµÐ¾ÑÐ¸Ñ Ð²ÑÐµÐ³Ð¾
string theory
composite string
graviton
superconformal
string
theory of everything

description: Ð¡Ð¸ÑÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸ Ð¸Ð·Ð»Ð¾Ð¶ÐµÐ½ Ð¿Ð¾Ð´ÑÐ¾Ð´ Ðº Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ ÑÐ¿ÐµÐºÑÑÐ° ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ð¹ ÑÐ½Ð°ÑÐ°Ð»Ð° Ð´Ð»Ñ Ð±Ð¾Ð·Ð¾Ð½Ð½Ð¾Ð¹ ÑÑÑÑÐ½Ñ, Ð·Ð°ÑÐµÐ¼ Ð´Ð»Ñ ÑÑÐ¿ÐµÑÐºÐ¾Ð½ÑÐ¾ÑÐ¼Ð½Ð¾Ð³Ð¾ ÑÐ»ÑÑÐ°Ñ. ÐÐ·Ð»Ð¾Ð¶ÐµÐ½Ð° ÑÐ¾ÑÑÐ°Ð²Ð½Ð°Ñ ÑÑÐ¿ÐµÑÐºÐ¾Ð½ÑÐ¾ÑÐ¼Ð½Ð°Ñ ÑÑÑÑÐ½Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¸Ð·Ð»Ð¾Ð¶ÐµÐ½Ð½ÑÑ Ð¿Ð¾Ð´ÑÐ¾Ð´Ð¾Ð² ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½ ÑÐ¿ÐµÐºÑÑ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ð¹ Ð·Ð°Ð¼ÐºÐ½ÑÑÑÑ ÑÑÑÑÐ½ Ð² ÑÐ¾ÑÑÐ°Ð²Ð½Ð¾Ð¹ ÑÑÐ¿ÐµÑÐºÐ¾Ð½ÑÐ¾ÑÐ¼Ð½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸. ÐÑÐ»Ð¸ Ð½Ð°Ð¹Ð´ÐµÐ½Ñ Ð² ÑÐ²Ð½Ð¾Ð¼ Ð²Ð¸Ð´Ðµ Ð²Ð¾Ð»Ð½Ð¾Ð²Ð°Ñ ÑÑÐ½ÐºÑÐ¸Ñ Ð³ÑÐ°Ð²Ð¸ÑÐ¾Ð½Ð°, Ð¸, Ñ ÑÐ¾ÑÐ½Ð¾ÑÑÑÑ Ð´Ð¾ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½ÑÐ¾Ð², ÑÐ¾ÑÐ¾Ð½Ð° Ð¸ Z-Ð±Ð¾Ð·Ð¾Ð½Ð°.
description: We consider a ground state spectrum of closed strings in composite superconformal string model. Explicit wave functions for graviton, photon (and Z-boson) are found in this spectrum.
Mechanism underlying dysregulated cerebral vessel growth in Alzheimer’s disease
Creators: name: Singh, Chaahat S. B.
Publisher: name: University of British Columbia
Year: 2020

description: Alzheimer’s disease (AD), a neurodegenerative disorder of the elderly, causes loss of memory leading to dementia. The exact cause of this disease is still unknown, and the mechanism of pathogenesis highly debated. Amyloid beta (Aβ) peptide is central to the disease along with the cerebrovascular dysfunction and impaired cerebral blood flow (CBF). A strong link exitsts between brain vascular dysfunction and AD. This link was established due to evidence of reduced blood-brain barrier (BBB) integrity preceding various AD neuropathologies. Furthermore, BBB dysfunction could influence CBF, which in turn influences blood vessel growth. Current dogma holds that BBB leakiness is likely due to vascular deterioration. Inflammatory changes in the AD brain lead to up-regulation of mediators like, VEGF and Tie-2, that initiate angiogenesis. Studies indicate pathological angiogenesis and BBB disruption occur as a compensatory response to impaired CBF. Aβ-induced neuroinflammatory responses promote the generation of reactive oxygen species and further endothelial damage. Aβ is shown to be a modulator of blood vessel density and vascular remodeling via angiogenic mechanisms. Studies on the cerebrovascular integrity in AD model mice showed a significant increase in the incidence of disrupted tight junctions which is directly linked to an increase in microvascular density. This strongly supports amyloidgenesis-triggered angiogenesis as the basis of BBB disruption. This thesis aims in attempting to curb vascular damage seen in the brains of AD mice and improve cognition by treating them with anti-angiogenic drugs providing scope for these to modulate cerebral angiogenesis to ameliorate Aβ load, reduce vasculature damage and reverting cognitive decline. This may facilitate new preventive and therapeutic interventions for not only AD but also related vascular diseases such as small vessel disease. As a part of the study, a mechanism for vascular dysfunction in AD is proposed as follows: Aβ triggers dysregulated blood vessel growth via Angiopoietin-2 mediated activation of the Tie-2 receptor of the angiogenesis pathway. Also demonstrated in this thesis is that AD pathology can be established by a bone marrow transplant from an AD mouse model into an APP knockout mouse suggesting the role of soluble Aβ in AD pathogenesis.
MEASURING CUSTOMER BASED BRAND EQUITY (CBBE) OF MOBILE PHONE BRANDS IN ETHIOPIA
Creators: name: Elyasse, Daniel
Publisher: name: Zenodo
Year: 2018

description: The purpose of this study was to Measure Customer Based Brand Equity (CBBE) in Ethiopian

Mobile Phone Market. The study used determinants of Customer Based Brand Equity model

proposed by Aaker (1991). The study focused on four determinants namely: Perceived quality,

Brand Awareness, Brand Association, Brand Loyalty. As the number of Mobile Phone brands

in Ethiopia is increasing in number, the study focused on 4(four) mobile phone brands namely:

TECHNO, SAMSUNG, HUAWEI and SMADL. The study examined how and to what extent

Aaker’s Brand Equity determinants affect customers brand preference and identify factors that

lead to high brand choice. Both primary and secondary data sources were applied. For

primary data questionnaires were used as a main primary data source and other related

literatures as secondary data. Different documents were assessed in line with the secondary

data sources. The researcher distributed a structured questionnaires written in Amharic and

in English and administered by the researcher and business students. Out of the total sample

size, 336 response was retained for further analysis. The analysis was performed using

descriptive and inferential statistics by using SPSS version 21 software with Amos graphics

package; Moreover SEM (Structural Equation Modeling) was also employed to investigate the

causal relationship b/n independent and dependent variables
Long-range sound-mediated dark soliton interactions in trapped atomic condensates
Creators: name: Allen, A. J.
name: Jackson, D. P.
name: Barenghi, C. F.
name: Proukakis, N. P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: A long-range soliton interaction is discussed whereby two or more dark solitons interact in an inhomogeneous atomic condensate, modifying their respective dynamics via the exchange of sound waves without ever coming into direct contact. An idealized double well geometry is shown to yield perfect energy transfer and complete periodic identity reversal of the two solitons. Two experimentally relevant geometries are analyzed which should enable the observation of this long-range interaction.
Exploring the Habitable Zone for Kepler planetary candidates
Creators: name: Kaltenegger, L.
name: Sasselov, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: This paper outlines a simple approach to evaluate habitability of terrestrial planets by assuming different types of planetary atmospheres and using corresponding model calculations. Our approach can be applied for current and future candidates provided by the Kepler mission and other searches. The resulting uncertainties and changes in the number of planetary candidates in the HZ for the Kepler February 2011 data release are discussed. To first order the HZ depends on the effective stellar flux distribution in wavelength and time, the planet albedo, and greenhouse gas effects. We provide a simple set of parameters which can be used for evaluating current and future planet candidates from transit searches.
description: 8 pages, 3 figures, 2 tables, ApJL accepted