cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Numerical approximation of the Euler-Maxwell model in the quasineutral limit
Creators: name: Degond, Pierre
name: Deluzet, Fabrice
name: Savelief, Dominique
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We derive and analyze an Asymptotic-Preserving scheme for the Euler-Maxwell system in the quasi-neutral limit. We prove that the linear stability condition on the time-step is independent of the scaled Debye length $λ$ when $λ\to 0$. Numerical validation performed on Riemann initial data and for a model Plasma Opening Switch device show that the AP-scheme is convergent to the Euler-Maxwell solution when $Δx/ λ\to 0$ where $Δx$ is the spatial discretization. But, when $λ/Δx \to 0$, the AP-scheme is consistent with the quasi-neutral Euler-Maxwell system. The scheme is also perfectly consistent with the Gauss equation. The possibility of using large time and space steps leads to several orders of magnitude reductions in computer time and storage.
Names and titles matter: The impact of linguistic fluency and the affect heuristic on aesthetic and value judgements of music
Creators: name: Anglada-Tort, Manuel
name: Steffens, Jochen
name: Müllensiefen, Daniel
Publisher: name: Technische Universität Berlin
Year: 2018
Subjects: subject: 150 Psychologie
subject: 153 Kognitive Prozesse, Intelligenz
subject: 780 Musik
subject: music evaluation
subject: artist name
subject: title
subject: fluency
subject: affect heuristic

description: It has been shown that titles influence peoples’ evaluation of visual art. However, the question of whether titles and artist names affect listeners when evaluating music has not yet been investigated. By using two well-known cognitive heuristics, the authors investigated whether names presented with music pieces influenced aesthetic and value judgments of music. Experiment 1 (N = 48) focused on linguistic fluency. The same music excerpts were presented with easy-to-pronounce (fluent) and difficult-to-pronounce (disfluent) names. Experiment 2 (N = 100) studied the affect heuristic. The same music excerpts were presented with positive (e.g., Kiss), negative (e.g., Suicide), and neutral (e.g., Window) titles. In both studies, aesthetic and value judgments of music were significantly influenced by the linguistic manipulation of the names. Participants in Experiment 1 evaluated the same music more positively when presented with fluent names compared to disfluent names. In Experiment 2, presenting the music with negative titles resulted in the lowest judgments. Moreover, music excerpts presented with neutral and negative titles were remembered significantly more often than positive titles. Finally, a comparison of the music presented with and without titles indicated that music excerpts were more liked in the presence of titles than in their absence. The present research shows different ways in which aesthetic and value judgments can be influenced by the names presented with music. Results suggest that like any other human judgment, evaluations of music also rely on heuristic principles that do not necessarily depend on the aesthetic stimuli themselves.
Nuts and Bolts: Inclusive Library Instructional Practices Using Universal Design Learning (UDL) Guidelines
Creators: name: Tchangalova, Nedelina
name: Akbar-Williams, Tahirah
Publisher: name: Digital Repository at the University of Maryland
Year: 2019
Subjects: Universal Design for Learning
UDL
Web accessibility
Inclusive learning
Library instruction

description: Poster presented at the UMD Disability Summit, "Looking to the Future: The ADA Turns 30" on April 5th, 2019, University of Maryland, College Park.
description: Librarians face challenges in designing and creating inclusive learning environment for students who are diverse not only in terms of age, race, gender, (dis)Ability, ethnicity, religion, political beliefs, but they are also different in the ways of how they learn. At the University of Maryland –College Park, librarians, teaching faculty and instructional designers are working together to create accessible content for eLearning and to reach out to a wider population of learners using recent technological tools and existing university’s content management infrastructure. Digital technologies, online resources, and mobile devices coupled with the guiding principles of the Universal Design for Learning (UDL) Framework and the University of Maryland (UMD) Web Accessibility Guidelines allowed us to tailor our instructional practices to create an inclusive and accessible learning environment for every student. We incorporated various tools and resources to achieve the learning objectives set up for our library instruction classes. In this poster, we will provide practical tips and tricks for applying the UDL framework and web accessibility principles into our instruction efforts.
Autismo: bisogna parlarne di più... di lingue. Il bilinguismo per favorire le performance della teoria della mente
Creators: name: Tarchini, Vanessa
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2023
Subjects: teoria della mente
disturbo dello spettro autistico
bilinguismo
funzioni esecutive
linguaggio
sviluppo cognitivo

description: La teoria della mente (ToM) è un importante meccanismo di base che consente l'interazione sociale umana. Senza di essa, faremmo molta fatica a comunicare tra di noi, a capire il comportamento degli altri e ci verrebbe così a mancare un tratto che ci rende speciali: la socialità. Il mio progetto di tesi si inserisce in una ricerca longitudinale condotta dal gruppo di ricerca Autismo, Bilinguismo, Sviluppo Cognitivo e Comunicativo (ABCCD) dell’Università di Friburgo. Il gruppo ABCCD vuole indagare, fra le altre cose, la possibile influenza del bilinguismo sulla ToM in bambini con disturbo dello spettro autistico (DSA) e a sviluppo tipico, tema attualmente scarsamente studiato e conosciuto. I dati raccolti al momento della stesura di questo lavoro di diploma non sono ancora sufficienti per poter indagare gli effetti del bilinguismo sulla ToM di bambini con DSA. L’analisi statistica dei dati del campione a mia disposizione sembra però mostrare che in media il punteggio nella ToM dei bambini monolingui sia maggiore rispetto ai bilingui. Relatore: Nicola Rudelli.
Nuts and Bolts: Inclusive Library Instructional Practices using UDL Guidelines
Creators: name: Tchangalova, Nedelina
Publisher: name: Digital Repository at the University of Maryland
Year: 2019
Subjects: Universal Design for Learning
UDL
Web accessibility
Inclusive learning
Library instruction

description: Presentation at the Disability, Access, and Teaching One-Day Symposium on April 10, 2019. Washington, DC. “UDL & Teacher Perspectives” Roundtable (Karina Jeronomides, AU; Alyssa Hillary, U of Rhode Island; Sara Luterman; Nedelina Tchangalova, UMD; Sarah Irvine Belson, Christine Bresnahan & Charlotte Morse, AU)
description: Librarians face challenges in designing and creating inclusive learning environment for students who are diverse not only in terms of age, race, sex, (dis)Ability, ethnicity, religion, political beliefs, but they are also different in the ways of how they learn. At the University of Maryland – College Park, librarians, teaching faculty and instructional designers are working together to create accessible content for eLearning and to reach out to a wider population of learners using recent technological tools and existing university’s content management infrastructure. Digital technologies, online resources, and mobile devices coupled with the guiding principles of the Universal Design for Learning (UDL) Framework and the University of Maryland (UMD) Web Accessibility Guidelines allowed to tailor instruction practices to create an inclusive and accessible learning environment for every student. I incorporated various tools and resources in order to achieve the learning objectives set up for library instruction classes. In this presentation, I will provide practical tips and tricks for applying the UDL framework and web accessibility principles into my instruction efforts.
Edge IoT prototyping using model-driven representations: A use case for smart agriculture
Creators: name: Guevara, Ivan
name: Ryan, Stephen
name: Singh, Amandeep
name: Brandon, Colm
name: MARGARIA, TIZIANA
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 460701
subject: Computer aided design

description: Abstract: Industry 4.0 is positioned at the junction of different disciplines, aiming to re-engineer processes and improve effectiveness and efficiency. It is taking over many industries whose traditional practices are being disrupted by advances in technology and inter-connectivity. In this context, enhanced agriculture systems incorporate new components that are capable of generating better decision making (humidity/temperature/soil sensors, drones for plague detection, smart irrigation, etc.) and also include novel processes for crop control (reproducible environmental conditions, proven strategies for water stress, etc.). At the same time, advances in model-driven development (MDD) simplify software development by introducing domain-specific abstractions of the code that makes application development feasible for domain experts who cannot code. XMDD (eXtreme MDD) makes this way to assemble software even more user-friendly and enables application domain experts who are not programmers to create complex solutions in a more straightforward way. Key to this approach is the introduction of high-level representations of domain-specific functionalities (called SIBs, service-independent building blocks) that encapsulate the programming code and their organisation in reusable libraries, and they are made available in the application development environment. This way, new domain-specific abstractions of the code become easily comprehensible and composable by domain experts. In this paper, we apply these concepts to a smart agriculture solution, producing a proof of concept for the new methodology in this application domain to be used as a portable demonstrator for MDD in IoT and agriculture in the Confirm Research Centre for Smart Manufacturing. Together with model-driven development tools, we leverage here the capabilities of the Nordic Thingy:53 as a multi-protocol IoT prototyping platform. It is an advanced sensing device that handles the data collection and distribution for decision making in the context of the agricultural system and supports edge computing. We demonstrate the importance of high-level abstraction when adopting a complex software development cycle within a multilayered heterogeneous IT ecosystem.
Hydrocarbons in soil as pathfinders for base and precious metal exploration : an orientation study at the Mt. Washington epithermal Au-Ag-Cu prospect, British Columbia, Canada
Creators: name: Luck, Pearce
Publisher: name: University of British Columbia
Year: 2021

description: The goal of this research is to advance hydrocarbon-pathfinder techniques as non-proprietary geochemical exploration tools for base- and precious-metal mineralization. Three objectives were set to achieve this goal: 1) identification of the physical, chemical, and biological links between buried economic mineralization and hydrocarbon concentrations and compositions at surface; 2) development of a robust, commercially viable and cost-effective analytical techniques for hydrocarbons applied to non-petroleum-based exploration; and 3) to optimize hydrocarbon sampling methodologies and strategies. To better understand hydrocarbon-sulphide interactions, hydrocarbon sampling methodologies were tested with a geochemical orientation survey over the Mt. Washington epithermal Au-Ag-Cu occurrence on Vancouver Island, British Columbia. A novel analytical technique, solid phase micro-extraction gas chromatography with flame ionization detection (SPME-GC-FID), was developed in conjunction with the commercial laboratory GeoFrontiers Corporation to determine hydrocarbon concentrations in soil. Soil gas samples, ground, and surface waters were also collected and analyzed for hydrocarbons. Surficial geology mapping shows that major and trace element distributions in soil are strongly controlled by the depositional facies of glacial cover. Epithermal pathfinder element concentrations in B-horizon soil and groundwater indicate that hydromorphic dispersion is also a significant factor in this study area. Key hydrocarbon pathfinder concentrations in soil and soil gas are highest proximal to sulphide mineralisation. Anomalous tridecane and hexadecane plume geometries in the surface environment are linked to epithermal mineralization in bedrock and commodity and pathfinder element anomalism in soil. Hydrocarbon anomalies in soil and soil gas at Mt. Washington are interpreted to be of biogenic origin. Hydrocarbons are naturally present in soils as products of biosynthesis by microbes, plants, fungi, yeast, and insects. Sulphide oxidising environments contain distinct microbial ecologies including primary producers such as Acidithiobacillus Ferrooxidans. which contribute to hydrocarbon cycling in soil. Thermogenic hydrocarbons interact with basin-hosted hydrothermal systems and may also contribute to anomalous concentrations of organic compounds associated with sulphide minerals.
Beam spin asymmetry in deeply virtual $π$ production
Creators: name: Kaskulov, Murat M.
name: Mosel, Ulrich
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: An interpretation of the beam spin azimuthal asymmetries measured at JLAB in deep exclusive electroproduction of charged and neutral pions is presented. The model combines a Regge pole approach with the effect of nucleon resonances. The $s$- and $u$-channel contributions are described using a dual Bloom-Gilman connection between the exclusive form factors and inclusive deep inelastic structure functions. The results are in agreement with data provided the excitations of nucleon resonances are taken into account.
description: 5 pages, 3 figures. Talk at the 19th International Spin Physics Symposium (SPIN2010), Sept.27-Oct.2, 2010, Juelich, Germany
Reconstructing Dark Energy Potentials From Parameterized Deceleration Parameters
Creators: name: Wang, Yuting
name: Xu, Lixin
name: Lu, Jianbo
name: Gui, Yuan-Xing
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper, the properties of dark energy are investigated according to the parameterized deceleration parameter $q(z)$, which is used to describe the extent of the accelerating expansion of the universe. The potential of dark energy $V(ϕ)$ and the cosmological parameters, such as the dimensionless energy density $Ω_ϕ$, $Ω_{m}$, and the state parameter $w_ϕ$, are connected to it. Concretely, by giving two kinds of parameterized deceleration parameters $q(z)=a+\frac{bz}{1+z}$ and $q(z)=1/2+\frac{az+b}{(1+z)^2}$, the evolution of these parameters and the reconstructed potentials $V(ϕ)$ are plotted and analyzed. It's found that the potentials run away with the evolution of universe.
title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾ÑÐµÑÑÐ° ÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¿Ð¾Ð»Ð¸ÑÑÐ¸ÑÑÑÐ¸ÑÐºÐµÑÐ¾Ð½Ð°
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: Researching the process of crystallization of poly(ether ether keton)
Creators: name: ÐÑÑÑÐµÐ², Ð¤Ð¸Ð»Ð¸Ð¿Ð¿
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÑÐµÑÐ¼Ð¾Ð¿Ð»Ð°ÑÑÐ¸ÑÐ½ÑÐµ Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÑ
Ð¿Ð¾Ð»Ð¸ÑÑÐ¸ÑÑÑÐ¸ÑÐºÐµÑÐ¾Ð½
ÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð¸Ð·Ð°ÑÐ¸Ñ
ÑÐµÐ½ÑÐ³ÐµÐ½Ð¾ÑÐ°Ð·Ð¾Ð²ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð·
termoplastic polymers
poly(ether ether keton)
crystallization
X-ray spectrography

description: ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· Ð½Ð°ÑÑÐ½Ð¾Ð¹ Ð»Ð¸ÑÐµÑÐ°ÑÑÑÑ Ð¿Ð¾ ÑÐµÐ¼Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ. ÐÐ° ÐµÐ³Ð¾ Ð¾ÑÐ½Ð¾Ð²Ðµ Ð²ÑÐ±ÑÐ°Ð½Ð¾ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ ÑÐ°Ð±Ð¾ÑÑ Ð¸ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐµ Ð¼ÐµÑÐ¾Ð´Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ. ÐÐ¾Ð´Ð¾Ð±ÑÐ°Ð½Ñ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐµ ÑÐµÐ¶Ð¸Ð¼Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ Ð¾Ð±ÑÐ°Ð·Ð¾Ð² Ð¿Ð¾Ð»Ð¸ÑÑÐ¸ÑÑÑÐ¸ÑÐºÐµÑÐ¾Ð½Ð° Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð³Ð¾ÑÑÑÐµÐ³Ð¾ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ñ. ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ñ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð° Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð¾Ð±ÑÐ°Ð·ÑÐ¾Ð². ÐÑÐ±ÑÐ°Ð½Ñ ÑÐµÐ¶Ð¸Ð¼Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ½ÑÑ Ð¾Ð±ÑÐ°Ð·Ð¾Ð² Ñ Ð°Ð¼Ð¾ÑÑÐ½Ð¾Ð¹ ÑÑÑÑÐºÑÑÑÐ¾Ð¹, Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð·Ð°ÐºÐ°Ð»ÐºÐ¸ ÑÐ°ÑÐ¿Ð»Ð°Ð²Ð° Ð² Ð²Ð¾Ð´Ñ. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð° ÑÐµÑÐ¸Ñ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ¾Ð² Ð¿Ð¾ Ð¸Ð·Ð¾ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ð¼Ñ Ð¾ÑÐ¶Ð¸Ð³Ñ Ð°Ð¼Ð¾ÑÑÐ½ÑÑ Ð¾Ð±ÑÐ°Ð·ÑÐ¾Ð² Ð´Ð»Ñ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð² Ð½Ð¸Ñ ÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÑÐºÑÑÑÑ. ÐÐµÑÐ¾Ð´Ð¾Ð¼ ÑÐµÐ½ÑÐ³ÐµÐ½Ð¾ÑÐ°Ð·Ð¾Ð²Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ ÑÑÐµÐ¿ÐµÐ½Ð¸ ÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð¸ÑÐ½Ð¾ÑÑÐ¸ Ð¿Ð¾Ð»Ð¸ÑÑÐ¸ÑÑÑÐ¸ÑÐºÐµÑÐ¾Ð½Ð° Ð² Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸ Ð¾Ñ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÑ Ð¸ Ð²ÑÐµÐ¼ÐµÐ½Ð¸ ÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð¾ÑÐ¶Ð¸Ð³Ð°. ÐÐ¾ÑÑÑÐ¾ÐµÐ½Ñ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸ ÑÑÐµÐ¿ÐµÐ½Ð¸ ÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð¸ÑÐ½Ð¾ÑÑÐ¸ Ð¾Ñ Ð²ÑÐµÐ¼ÐµÐ½Ð¸ Ð¾ÑÐ¶Ð¸Ð³Ð° Ð¿ÑÐ¸ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ°Ñ. ÐÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»Ð¸ ÑÑÐµÐ¿ÐµÐ½Ð¸ ÐÐ²ÑÐ°Ð¼Ð¸ Ð´Ð»Ñ ÑÐµÐ¶Ð¸Ð¼Ð¾Ð² ÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¿ÑÐ¸ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ°Ñ Ð±Ð»Ð¸Ð·ÐºÐ¸Ñ Ðº ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐµ ÑÑÐµÐºÐ»Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ°. ÐÐµÑÐ¾Ð´ ÑÐºÐ°Ð½Ð¸ÑÑÑÑÐµÐ¹ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð¹ Ð¼Ð¸ÐºÑÐ¾ÑÐºÐ¾Ð¿Ð¸Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ ÑÐ½Ð¸Ð¼ÐºÐ¸ Ð½Ð°Ð´Ð¼Ð¾Ð»ÐµÐºÑÐ»ÑÑÐ½Ð¾Ð¹ ÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÑÐºÑÑÑÑ Ð¿Ð¾Ð»Ð¸ÑÑÐ¸ÑÑÑÐ¸ÑÐºÐµÑÐ¾Ð½Ð°.
description: In this paper, different modes of annealing poly (ether ether keton) are studied. Amorphous samples for further crystallization were produced. Then samples with different degree of crystallization were obtained. X â ray spectrography were studied to calculate degree of crystallinity. Based on achieved data, de-pendance of degree of crystallinity on time of annealing and temperature of an-nealing.
A new look at NICMOS transmission spectroscopy of HD189733, GJ-436 and XO-1: no conclusive evidence for molecular features
Creators: name: Gibson, Neale P.
name: Pont, Frederic
name: Aigrain, Suzanne
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present a re-analysis of archival HST/NICMOS transmission spectroscopy of three exoplanet systems; HD 189733, GJ-436 and XO-1. Detections of several molecules, including H20, CH4 and CO2, have been claimed for HD 189733 and XO-1, but similarly sized features are attributed to systematic noise for GJ-436. The data consist of time-series grism spectra covering a planetary transit. After extracting light curves in independent wavelength channels, we use a linear decorrelation technique account for instrumental systematics (which is becoming standard in the field), and measure the planet-to-star radius ratio as a function of wavelength. For HD 189733, the uncertainties in the transmission spectrum are significantly larger than those previously reported. We also find the transmission spectrum is considerably altered when using different out-of-transit orbits to remove the systematics, when some parameters are left out of the decorrelation procedure, or when we perform the decorrelation with quadratic functions rather than linear functions. Given that there is no physical reason to believe the baseline flux should be modelled as a linear function of any particular set of parameters, we interpret this as evidence that the linear decorrelation technique is not a robust method to remove systematic effects from the light curves for each wavelength channel. For XO-1, the parameters measured to decorrelate the light curves would require extrapolation to the in-transit orbit to remove the systematics, and we cannot reproduce the previously reported results. We conclude that the resulting NICMOS transmission spectra are too dependent on the method used to remove systematics to be considered robust detections of molecular species in planetary atmospheres, although the presence of these molecules is not ruled out.
description: 17 pages, 28 figures, accepted in MNRAS
Limit of Spin Squeezing in Finite Temperature Bose-Einstein Condensates
Creators: name: Sinatra, Alice
name: Witkowska, Emilia
name: Dornstetter, Jean-Christophe
name: Li, Yun
name: Castin, Yvan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We show that, at finite temperature, the maximum spin squeezing achievable using interactions in Bose-Einstein condensates has a finite limit when the atom number $N\to \infty$ at fixed density and interaction strength. We calculate the limit of the squeezing parameter for a spatially homogeneous system and show that it is bounded from above by the initial non-condensed fraction.
description: 4 pages, 4 figures
Branching rules for Weyl group orbits of simple Lie algebras B(n), C(n) and D(n)
Creators: name: Larouche, M.
name: Patera, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 20F55, 22E46

description: The orbits of Weyl groups W(B(n)), W(C(n)) and W(D(n)) of the simple Lie algebras B(n), C(n) and D(n) are reduced to the union of the orbits of Weyl groups of the maximal reductive subalgebras of B(n), C(n) and D(n). Matrices transforming points of W(B(n)), W(C(n)) and W(D(n)) orbits into points of subalgebra orbits are listed for all cases n<=8 and for the infinite series of algebra-subalgebra pairs B(n) - B(n-1) x U(1), B(n) - D(n), B(n) - B(n-k) x D(k), B(n) - A(1), C(n) - C(n-k) x C(k), C(n) - A(n-1) x U(1), D(n) - A(n-1) x U(1), D(n) - D(n-1) x U(1), D(n) -B(n-1), D(n) - B(n-k-1) x B(k), D(n) -D(n-k) x D(k). Numerous special cases and examples are shown.
description: 31 pages, accepted in J. Phys. A : Math. Theor
Monitoraggio bus domotico KNX
Creators: name: Rivola, Giacomo
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2021

description: L’obiettivo del progetto è realizzare un dispositivo di monitoraggio del bus KNX con la possibilità di inviare dei telegrammi. Oltre a ciò una funzionalità richiesta è quella di poter salvare un file contente tutti i telegrammi registrati dal dispositivo. Dopo una prima fase di pianificazione del lavoro da compiere, e conseguentemente la ricerca dei componenti necessari, si è passati allo sviluppo del software. Questo rapido passaggio all’implementazione del codice è reso possibile dal fatto che non si è dovuto sviluppare un hardware specifico per questo progetto, in quanto si è optato per l’utilizzo di Evaluation board (EVB). In seguito alla fase di sviluppo si è ottenuto un sistema in grado di ricevere i telegrammi KNX ed interpretarli, permettendo la visualizzazione di questi dati attraverso un webserver. Oltre a ciò è possibile salvare un file di testo in locale con la registrazione del traffico intercettato, e da ultimo ma non meno importate, si è implementato la base per l’invio di telegrammi KNX attraverso il webserver. Un interessante ulteriore sviluppo sarebbe quello di realizzare un PCB, e fare in modo che questo dispositivo diventi un vero e proprio nodo KNX.
Scalar tilt from broken conformal invariance
Creators: name: Rubakov, V.
name: Osipov, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Within recently proposed scenario which explains flatness of the spectrum of scalar cosmological perturbations by a combination of conformal and global symmetries, we discuss the effect of weak breaking of conformal invariance. We find that the scalar power spectrum obtains a small tilt which depends on both the strength of conformal symmetry breaking and the law of evolution of the scale factor.
VALITEST - D5.1 Analysis of the needs of the laboratories and applicability of the horizontal proficiency testing approach
Creators: name: Rolland, M.
Publisher: name: Zenodo
Year: 2020
Subjects: horizontal approach
PT
plant health

description: The 5th work package of the VALITEST project aims at developing guidelines on a horizontal approach allowing the laboratories to undertake proficiency testing (PT) without having to participate in proficiency tests for all the tests they use. A range of data has been collected using three different approaches, i) the study of accreditation scopes of some laboratories involved in diagnostics, ii) a workshop with diagnostic experts, iii) a survey sent to laboratories listed in the EPPO database on diagnostic expertise. The data collected allow a better understanding of the expectations of laboratories, of what they would consider as acceptable and of the applicability of the horizontal proficiency testing approach. According to the data collected, a PT plan should be conducted over 3 to 4 years. Each year a single PT should be organized per field. It could contain several pests, however, to limit the workload no more than 3 tests should have to be performed on a maximum of 10 samples. The PT should include whenever possible the different pests included in the scope of accreditation of the laboratories, but also emerging pests. The pests to consider as a priority have been identified. PT samples should be as similar as possible to routine samples, ideally different matrices should be included in each PT. Among the different factors determining the reliability of a test, the design of the PT plan should especially focus on human factors (i.e. the proficiency of the staff to use the different techniques). The laboratories do not wish to spend more than 3 500 € per year for a service providing proficiency tests covering all their needs.
title: Ð ÐµÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ñ Ð²Ð¾Ð´Ð¾ÑÐ»Ð¸Ð²Ð½Ð¾Ð¹ Ð±ÐµÑÐ¾Ð½Ð½Ð¾Ð¹ Ð¿Ð»Ð¾ÑÐ¸Ð½Ñ Ð¸ ÐºÐ°Ð¼ÐµÑÑ ÑÐ°Ð±Ð¾ÑÐµÐ³Ð¾ ÐºÐ¾Ð»ÐµÑÐ° ÐÐ¾Ð»Ð¶ÑÐºÐ¾Ð¹ ÐÐ­Ð¡
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: Reconstruction of a spillway concrete dam and impeller chamber of the Volzhskaya hydroelectric power station
Creators: name: Ð¥Ð»ÑÐ½Ð¾Ð², ÐÐ¼Ð¸ÑÑÐ¸Ð¹
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ÐµÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ñ
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reconstruction
water drain
driver camera
concrete works
repair mix
concrete cutting
hydro unit
volga hpp
project of production of works

description: Ð¦ÐµÐ»ÑÑ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¿ÑÐ¾ÐµÐºÑÐ° Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð° ÑÐ°Ð±Ð¾Ñ Ð¿Ð¾ ÑÐµÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ Ð²Ð¾Ð´Ð¾ÑÐ»Ð¸Ð²Ð½Ð¾Ð¹ Ð¿Ð»Ð¾ÑÐ¸Ð½Ñ Ð¸ ÐºÐ°Ð¼ÐµÑÑ ÑÐ°Ð±Ð¾ÑÐµÐ³Ð¾ ÐºÐ¾Ð»ÐµÑÐ° Ð´ÐµÐ¹ÑÑÐ²ÑÑÑÐµÐ¹ ÑÑÐ°Ð½ÑÐ¸Ð¸, Ð²ÑÐ±Ð¾Ñ Ð³Ð¸Ð´ÑÐ¾Ð°Ð³ÑÐµÐ³Ð°ÑÐ°, Ð¾ÑÐ²ÐµÑÐ°ÑÑÐµÐ³Ð¾ Ð²ÑÐµÐ¼ ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÐ¼ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸ÑÐ¼. ÐÐ¿Ð¸ÑÐ°Ð½Ð¸Ðµ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð° ÑÐ°Ð±Ð¾Ñ, Ñ ÑÑÐµÑÐ¾Ð¼ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸Ð¹ Ðº ÐºÐ°ÑÐµÑÑÐ²Ñ Ð±ÐµÑÐ¾Ð½Ð½ÑÑ ÑÐ°Ð±Ð¾Ñ
description: The aim of this work is to develop a project for the reconstruction of a spillway dam and the impeller chamber of an operating station, and to select a hydraulic unit that meets all modern requirements. Description of the technology of work, taking into account the requirements for the quality of concrete work
A 3D radiative transfer framework: VII. Arbitrary velocity fields in the Eulerian frame
Creators: name: Seelmann, A. M.
name: Hauschildt, P. H.
name: Baron, E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: A solution of the radiative-transfer problem in 3D with arbitrary velocity fields in the Eulerian frame is presented. The method is implemented in our 3D radiative transfer framework and used in the PHOENIX/3D code. It is tested by comparison to our well- tested 1D co-moving frame radiative transfer code, where the treatment of a monotonic velocity field is implemented in the Lagrangian frame. The Eulerian formulation does not need much additional memory and is useable on state-of-the-art computers, even large-scale applications with 1000's of wavelength points are feasible.
Regolamento per gli esami di abilitazione all'insegnamento nelle scuole primarie e maggiori
Creators: name: (:Unkn) Unknown
Publisher: name: Bellinzona
Year: 1887
Subjects: subject: Civics
subject: Italian
subject: condizioni di ammissione
subject: esami orali
subject: esami scritti
subject: esame pratico
subject: commissione esami
subject: patente

description: Documento conservato presso la Forschungsbibliothek Pestalozzianum, Pädagogische Hochschule Zürich.
The evolutionary ecology of hybridization
Creators: name: Thompson, Ken A.
Publisher: name: University of British Columbia
Year: 2021

description: Hybridization is the process that mediates gene flow between sexually reproducing lineages. As such, the factors that determine the fitness of hybrids are critically important for speciation. Although hybridization between natural populations occurs in an explicitly ecological context, where hybrids must compete for resources and attract mates under prevailing ecological conditions, little attention has been paid to the mechanisms that mediate the ecological performance of hybrids. In Chapter 2, I expand upon existing models of speciation and find that standing variation improves hybrid fitness when parents adapt to similar environments, but reduces hybrid fitness when parents adapt to different environments. Chapter 3 systematically reviews the literature to report that F1 hybrids are often quite mismatched for divergent parental traits, and also uses a field experiment with sunflowers to show that this mismatch reduces fitness via seed count. Chapter 4 also uses data from the literature to demonstrate that divergent adaptation proceeds via pleiotropic alleles. In Chapter 5, I measure morphological traits in the lab to illustrate that the magnitude of trait `mismatch' in hybrids increases with the phenotypic distance between cross parents. Chapter 6 uses a pond experiment hybridizing 'parallel' ecotypes and reports that hybridization after parallel evolution results both in heterosis and hybrid breakdown. Finally, Chapter 7 uses DNA sequence data to illustrate that the genetic signature of hybrid incompatibilities - excess heterozygosity - is greater when stickleback hybrids are raised in ponds than when they are raised in aquaria. In sum, my thesis demonstrates that ecological selection against hybrids can result from rapid adaptation from standing variation, from mismatched trait combinations that evolve somewhat predictably, and can have a detectable genetic signature. Hybridization after parallel evolution, at least in stickleback, leads to relatively equal measures of hybrid breakdown and heterosis. Ecologically-mediated natural and sexual selection can clearly play a large role in mediating the fitness of hybrids - future work should aim to establish the importance of these processes for speciation more broadly.
Sensitivity analysis of a computational model of the IKK-NF-κB-IκBα-A20 signal transduction network
Creators: name: Joo, Jaewook
name: Plimpton, Steve
name: Martin, Shawn
name: Swiler, Laura
name: Faulon, Jean-Loup
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Molecular Networks (q-bio.MN)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Biological sciences

description: The NF-κB signaling network plays an important role in many different compartments of the immune system during immune activation. Using a computational model of the NF-κB signaling network involving two negative regulators, IκBα and A20, we performed sensitivity analyses with three different sampling methods and present a ranking of the kinetic rate variables by the strength of their influence on the NF-κB signaling response. We also present a classification of temporal response profiles of nuclear NF-κB concentration into six clusters, which can be regrouped to three biologically relevant clusters. Lastly, based upon the ranking, we constructed a reduced network of the IKK-NF-κB-IκBα-A20 signal transduction.
description: 32 pages, 8 figures
Additional file 1 of Genetic predisposition to longer telomere length and risk of childhood, adolescent and adult-onset ependymoma
Creators: name: Zhang, Chenan
name: Ostrom, Quinn T.
name: Semmes, Eleanor C.
name: Ramaswamy, Vijay
name: Hansen, Helen M.
name: Morimoto, Libby
name: de Smith, Adam J.
name: Pekmezci, Melike
name: Vaksman, Zalman
name: Hakonarson, Hakon
name: Diskin, Sharon J.
name: Metayer, Catherine
name: Taylor, Michael D.
name: Wiemels, Joseph L.
name: Bondy, Melissa L.
name: Walsh, Kyle M.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Computational Biology

description: Additional file 1: Supplementary note: The Glioma International Case Control Study membership. Supplementary Table 1. Demographic and clinical data for pediatric ependymoma cases (ages 0-19) from the California Cancer Record Linkage Project (CCRLP). Supplementary Table 2. Single SNP associations between LTL-associated variants and ependymoma risk in the CCRLP case-control dataset, stratified by age at diagnosis. Supplementary Table 3. Single SNP associations between LTL-associated variants and ependymoma risk in the Toronto and GICC case-control datasets. Supplementary Table 4. Association between polygenic score for longer leukocyte telomere length and risk of ependymoma in the California Cancer Records Linkage Project (CCRLP)a, stratified by tumor site (spinal vs. intracranial) and age (<12, ≥12). Associations are adjusted for sex and first 10 principal components
Personality network neuroscience: Promises and challenges on the way toward a unifying framework of individual variability
Creators: name: Hilger, Kirsten
name: Markett, Sebastian
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: Personality network neuroscience (PNN)
subject: fMRI
subject: Personality psychology
subject: Trait theory
subject: Functional brain connectivity
subject: 610 Medizin und Gesundheit

description: We propose that the application of network theory to established psychological personality conceptions has great potential to advance a biologically plausible model of human personality. Stable behavioral tendencies are conceived as personality “traits.” Such traits demonstrate considerable variability between individuals, and extreme expressions represent risk factors for psychological disorders. Although the psychometric assessment of personality has more than hundred years tradition, it is not yet clear whether traits indeed represent “biophysical entities” with specific and dissociable neural substrates. For instance, it is an open question whether there exists a correspondence between the multilayer structure of psychometrically derived personality factors and the organizational properties of traitlike brain systems. After a short introduction into fundamental personality conceptions, this article will point out how network neuroscience can enhance our understanding about human personality. We will examine the importance of intrinsic (task-independent) brain connectivity networks and show means to link brain features to stable behavioral tendencies. Questions and challenges arising from each discipline itself and their combination are discussed and potential solutions are developed. We close by outlining future trends and by discussing how further developments of network neuroscience can be applied to personality research.
Construction of Irreducible Representations of the Quantum Super Group $GL_q(3|1)$
Creators: name: Dung, Nguyen Thi Phuong
name: Hai, Phung Ho
name: Hung, Nguyen Huy
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Algebra (math.QA)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17B10, 20G05

description: In this note, we construct all irreducible representations of the quantum general linear super group $GL_q(3|1)$ using the double Koszul complex.
description: 15 pages, accepted for publication in Acta Mathematica Vietnamica
On the precision attainable with various floating-point number systems
Creators: name: Brent, Richard P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: G.1.0
subject: 65Y04

description: For scientific computations on a digital computer the set of real number is usually approximated by a finite set F of "floating-point" numbers. We compare the numerical accuracy possible with difference choices of F having approximately the same range and requiring the same word length. In particular, we compare different choices of base (or radix) in the usual floating-point systems. The emphasis is on the choice of F, not on the details of the number representation or the arithmetic, but both rounded and truncated arithmetic are considered. Theoretical results are given, and some simulations of typical floating-point computations (forming sums, solving systems of linear equations, finding eigenvalues) are described. If the leading fraction bit of a normalized base 2 number is not stored explicitly (saving a bit), and the criterion is to minimize the mean square roundoff error, then base 2 is best. If unnormalized numbers are allowed, so the first bit must be stored explicitly, then base 4 (or sometimes base 8) is the best of the usual systems.
description: Corrected version of an old paper (predating the IEEE floating point standard). For details see http://wwwmaths.anu.edu.au/~brent/pub/pub017.html
PASS-погноз участия изоформ цитохрома Р450 в элиминации винборона и целесообразность его комбинированного применения с ибупрофеном
Creators: name: Hladkykh, Fedir
name: Stepanjuk, Natalia
Publisher: name: Zenodo
Year: 2016

description: Гладких Ф. В., Степанюк Н. Г. PASS-погноз участия изоформ цитохрома Р450 в элиминации винборона и целесообразность его комбинированного применения с ибупрофеном. Сборник тезисов конгресса с международным участием «Дни ревматологии в Санкт Петербурге – 2016»: тезисы доклада (14–17 сентября 2016 г.). Санкт-Петербург, 2016. С. 59–60. DOI: https://doi.org/10.5281/zenodo.7907296.
Probing the pseudogap phase of cuprates by a Giaever transformer
Creators: name: Levchenko, Alex
name: Norman, M. R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We develop a theory of the rectification effect in a double-layer system where both layers are superconductors, or one of the layers is a normal metal. The Coulomb interaction is assumed to provide the dominant coupling between the layers. We find that superconducting fluctuations strongly enhance the drag conductivity, with rectification most pronounced when both layers are superconductors. In view of their distinct dependence on temperature near Tc and layer separation, drag measurements based on a Giaever transformer could distinguish whether rectification occurs due to fluctuating pairs or inductively coupled fluctuating vortices.
description: 4 pages, 1 figure
Titelei
Creators: name: Redaktion, Die
Publisher: name: Quartär – Internationales Jahrbuch zur Erforschung des Eiszeitalters und der Steinzeit
Year: 2021

description: Quartär – Internationales Jahrbuch zur Erforschung des Eiszeitalters und der Steinzeit, Bd. 66 (2019): Quartär. Internationales Jahrbuch zur Eiszeitalter- und Steinzeitforschung
Delineating the conformal window
Creators: name: Frandsen, Mads T.
name: Pickup, Thomas
name: Teper, Michael
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We identify and characterise the conformal window in gauge theories relevant for beyond the standard model building, e.g. Technicolour, using the criteria of metric confinement and causal analytic couplings, which are known to be consistent with the phase diagram of supersymmetric QCD from Seiberg duality. Using these criteria we find perturbation theory to be consistent throughout the predicted conformal window for several of these gauge theories and we discuss recent lattice results in the light of our findings.
description: 8 pages, 4 figures
Book reviews - Buchbesprechungen
Creators: name: Kegler, Jan F.
name: Bolus, Michael
Publisher: name: Quartär – Internationales Jahrbuch zur Erforschung des Eiszeitalters und der Steinzeit
Year: 2021

description: Rezension zu: Ludovic Mevel, Des Sociétés en mouvement. Evolution des sociétés magdaléniennes et aziliennes des Alpes du Nord françaises, Documents préhistoriques 34. Comité des travaux historiques et scientifiques (Eds.), Paris, 2017, 330 Pages, Softback, ISBN 978-2-7355-0841-9 Rezension zu: Robert Bégouën, La Grotte d’Enlène. Immersion dans un habitat magdalénien, Andreas Pastoors & Jean Clottes Paris/Montesquieu-Avantès: In Fine éditions d’art/Association Louis Bégouën, 2019, gebunden, 456 S., ISBN 978-2-902302-30-7
description: Quartär – Internationales Jahrbuch zur Erforschung des Eiszeitalters und der Steinzeit, Bd. 66 (2019): Quartär. Internationales Jahrbuch zur Eiszeitalter- und Steinzeitforschung
The G292.0+1.8 pulsar wind nebula in the mid-infrared
Creators: name: Zyuzin, D. A.
name: Danilenko, A. A.
name: Zharikov, S. V.
name: Shibanov, Yu. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: G292.0+1.8 is a Cas A-like supernova remnant that contains the young pulsar PSR J1124-5916 powering a compact torus-like pulsar wind nebula visible in X-rays. A likely counterpart to the nebula has been detected in the optical VRI bands. To confirm the counterpart candidate nature, we examined archival mid-infrared data obtained with the Spitzer Space Telescope. Broad-band images taken at 4.5, 8, 24, and 70 microns were analyzed and compared with available optical and X-ray data. The extended counterpart candidate is firmly detected in the 4.5 and 8 micron bands. It is brighter and more extended in the bands than in the optical, and its position and morphology agree well with the coordinates and morphology of the torus-like pulsar wind nebula in X-rays. The source is not visible in 24 and 70 micron images, which are dominated by bright emission from the remnant shell and filaments. We compiled the infrared fluxes of the nebula, which probably contains a contribution from an unresolved pulsar in its center, with the optical and X-ray data. The resulting unabsorbed multiwavelength spectrum is described by power laws of significantly steeper slope in the infrared-optical than in X-rays, implying a double-knee spectral break between the optical and X-rays. The 24 and 70 microns flux upper limits suggest a second break and a flatter spectrum at the long wavelength limit. These features are common to two other pulsar wind nebulae associated with the remnants B0540-69.3 and 3C 58 and observed in all three ranges. The position, morphology, and spectral properties of the detected source allow us to comfirm that it is the infrared-optical counterpart to both the pulsar and its wind nebula system in the G292.0+1.8 supernova remnant.
description: 5 pages, 2 figures
Modelliamo la gioia con l’argilla
Creators: name: Okitsu, Harakura
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2012

description: All’interno di questo lavoro di diploma, è stata condotta una ricerca attorno al tema dell’emozione della gioia attraverso l’argilla come mezzo espressivo tridimensionale con bambini di scuola dell’infanzia e di quinta elementare. Rispetto alle ricerche finora conosciute relative ai mezzi espressivi bidimensionali, seppur significative, quelle sui mezzi espressivi tridimensionali risultano essere poco numerose. Partendo dalle ricerche già condotte e prediligendo la metodologia qualitativa, questo lavoro ne ha elaborata una sul territorio ticinese. L’indagine ha sollevato alcuni interrogativi. Vi saranno corrispondenze tra l’esperienza sperimentale svolta qui e le teorie finora enunciate? Come i bambini rappresenteranno l’emozione della gioia con il mezzo espressivo tridimensionale dell’argilla? La rappresenteranno maggiormente in modo diretto (ad esempio, modellando un viso che sorride) o ricorreranno a modalità meno dirette (simboliche/metaforiche)? Dai prodotti realizzati e i rispettivi protocolli registrati, si è potuto costatare che vi è una globale corrispondenza tra l’esperienza agita e le teorie di riferimento. Inoltre, nel campione SI, circa la metà dei bambini ha rappresentato in modo diretto l’emozione della gioia, la totalità del campione SE, invece, l’ha rappresentata in modo indiretto. Relatrice: Luisa Figini
Kostënki 17 (Spitsynskaya) and Kostënki 6 (Streletskaya): recent fieldwork and new 14C dates
Creators: name: Dinnis, Rob
name: Bessudnov, Alexander
name: Artyushenko, Alexei
name: Lada, Anton
name: Sinitsyn, Andrei
name: Higham, Thomas
Publisher: name: Quartär – Internationales Jahrbuch zur Erforschung des Eiszeitalters und der Steinzeit
Year: 2021

description: Quartär – Internationales Jahrbuch zur Erforschung des Eiszeitalters und der Steinzeit, Bd. 66 (2019): Quartär. Internationales Jahrbuch zur Eiszeitalter- und Steinzeitforschung
Free-energy landscape of nucleation with an intermediate metastable phase studied using capillarity approximation
Creators: name: Iwamatsu, Masao
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Capillarity approximation is used to study the free-energy landscape of nucleation when an intermediate metastable phase exists. The critical nucleus that corresponds to the saddle point of the free-energy landscape as well as the whole free-energy landscape can be studied using this capillarity approximation, and various scenarios of nucleation and growth can be elucidated. In this study we consider a model in which a stable solid phase nucleates within a metastable vapor phase when an intermediate metastable liquid phase exists. We predict that a composite critical nucleus that consists of a solid core and a liquid wetting layer as well as pure liquid and pure solid critical nuclei can exist depending not only on the supersaturation of the liquid phase relative to that of the vapor phase but also on the wetting behavior of the liquid surrounding the solid. The existence of liquid critical nucleus indicates that the phase transformation from metastable vapor to stable solid occurs via the intermediate metastable liquid phase, which is quite similar to the scenario of nucleation observed in proteins and colloidal systems. By studying the minimum-free-energy path on the free-energy landscape, we can study the evolution of the composition of solid and liquid within nuclei not limited to the critical nucleus.
description: 9 pages, 8 figures, Journal of chemical physics to be published