cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Chaos Pass Filter: Linear Response of Synchronized Chaotic Systems
Creators: name: Zeeb, Steffen
name: Kestler, Johannes
name: Kanter, Ido
name: Kinzel, Wolfgang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The linear response of synchronized time-delayed chaotic systems to small external perturbations, i.e., the phenomenon of chaos pass filter, is investigated for iterated maps. The distribution of distances, i.e., the deviations between two synchronized chaotic units due to external perturbations on the transfered signal, is used as a measure of the linear response. It is calculated numerically and, for some special cases, analytically. Depending on the model parameters this distribution has power law tails in the region of synchronization leading to diverging moments of distances. This is a consequence of multiplicative and additive noise in the corresponding linear equations due to chaos and external perturbations. The linear response can also be quantified by the bit error rate of a transmitted binary message which perturbs the synchronized system. The bit error rate is given by an integral over the distribution of distances and is calculated analytically and numerically. It displays a complex nonmonotonic behavior in the region of synchronization. For special cases the distribution of distances has a fractal structure leading to a devil's staircase for the bit error rate as a function of coupling strength. The response to small harmonic perturbations shows resonances related to coupling and feedback delay times. A bi-directionally coupled chain of three units can completely filtered out the perturbation. Thus the second moment and the bit error rate become zero.
Testing for correlation between two time series using a parametric bootstrap
Creators: name: Sun, Zequn
name: Fisher, Thomas J.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy

description: We study the problem of determining if two time series are correlated in the mean and variance. Several test statistics, originally designed for determining the correlation between two mean processes or goodness-of-fit testing, are explored and formally introduced for determining cross-correlation in variance. Simulations demonstrate the theoretical asymptotic distribution can be ineffective in finite samples. Parametric bootstrapping is shown to be an effective tool in such an enterprise. A large simulation study is provided demonstrating the efficacy of the bootstrapping method. Lastly, an empirical example explores a correlation between the Standard & Poor's 500 index and the Euro/US dollar exchange rate while also demonstrating a level of robustness for the proposed method.
Specification of 'normal' wind turbine operating behaviour for rapid anomaly detection: through the use of machine learning algorithms
Creators: name: Streethran, Nithiya
Publisher: name: Zenodo
Year: 2020
Subjects: wind turbine
operation and maintenance
fault prediction
machine learning
renewable energy
asset management
python

description: Specification of 'normal' wind turbine operating behaviour for rapid anomaly detection: through the use of machine learning algorithms

by Nithiya Streethran (nmstreethran@gmail.com)

Files from my master's dissertation, completed between May and August 2017 at Heriot-Watt University and Natural Power Consultants.

https://github.com/nmstreethran/WindTurbineClassification
Ben Weber, Lucia Dlugoszewski (#44)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2020
Subjects: Music

description: Guests: No guests. Works: Rhapsodia Concertante (Weber); Concertino for Flute, Oboe, Clarinet, and String Quartet (Weber); Swift P'O (Dlugoscewski); Space is a Diamond (Dlugoscewski); Archaic Aggregates (Dlugoscewski).
Augmented-limited regression models with an application to the study of the risk perceived using continuous scales
Creators: name: Silva, Ana R. S.
name: Azevedo, Caio L. N.
name: Bazán, Jorge L.
name: Nobre, Juvêncio S.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Studies of risk perceived using continuous scales of [0,100] were recently introduced in psychometrics, which can be transformed to the unit interval, but the presence of zeros or ones are commonly observed. Motivated by this, we introduce a full inferential set of tools that allows for augmented and limited data modeling. We considered parameter estimation, residual analysis, influence diagnostic and model selection for zero-and/or-one augmented beta rectangular (ZOABR) regression models and their particular nested models, which is based on a new parameterization of the beta rectangular distribution. Different from other alternatives, we performed maximum-likelihood estimation using a combination of the EM algorithm (for the continuous part) and Fisher scoring algorithm (for the discrete part). Also, we perform an additional step, by considering other link functions, besides the usual logistic link, for modeling the response mean. By considering randomized quantile residuals, (local) influence diagnostics and model selection tools, we identified that the ZOABR regression model is the best one. We also conducted extensive simulations studies, which indicate that all developed tools work properly. Finally, we discuss the use of this type of models to treat psychometric data. It is worthwhile to mention that applications of the developed methods go beyond to Psychometric data. Indeed, they can be useful when the response variable in bounded, including or not the respective limits.
Birnbaum–Saunders sample selection model
Creators: name: de Souza Bastos, Fernando
name: Barreto-Souza, Wagner
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Science Policy

description: The sample selection bias problem occurs when the outcome of interest is only observed according to some selection rule, where there is a dependence structure between the outcome and the selection rule. In a pioneering work, J. Heckman proposed a sample selection model based on a bivariate normal distribution for dealing with this problem. Due to the non-robustness of the normal distribution, many alternatives have been introduced in the literature by assuming extensions of the normal distribution like the Student-t and skew-normal models. One common limitation of the existent sample selection models is that they require a transformation of the outcome of interest, which is common R+-valued, such as income and wage. With this, data are analyzed on a non-original scale which complicates the interpretation of the parameters. In this paper, we propose a sample selection model based on the bivariate Birnbaum–Saunders distribution, which has the same number of parameters that the classical Heckman model. Further, our associated outcome equation is R+-valued. We discuss estimation by maximum likelihood and present some Monte Carlo simulation studies. An empirical application to the ambulatory expenditures data from the 2001 Medical Expenditure Panel Survey is presented.
A linear distribution of orbits in compact planetary systems?
Creators: name: Migaszewski, Cezary
name: Gozdziewski, Krzysztof
name: Slonina, Mariusz
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report a linear ordering of orbits in a sample of multiple extrasolar planetary systems with super-Earth planets. We selected 20 cases, mostly discovered by the Kepler mission, hosting at least four planets within \sim 0.5 au. The semi-major axis a_n of an n-th planet in each system of this sample obeys a(n) = a_1 + (n-1) Δa, where a_1 is the semi-major axis of the innermost orbit and Δa is a spacing between subsequent planets, which are specific for a particular system. For instance, the Kepler-33 system hosting five super-Earth planets exhibits the relative deviations between the observed and linearly predicted semi-major axes of only a few percent. At least half of systems in the sample fulfill the linear law with a similar accuracy. We explain the linear distribution of semi-major axes as a natural implication of multiple chains of mean motion resonances between subsequent planets, which emerge due to planet--disk interactions and convergent migration at early stages of their evolution.
description: accepted to MNRAS Letters
Towards solar activity maximum 24 as seen by GOLF and VIRGO/SPM instruments
Creators: name: Garcia, R. A.
name: Salabert, D.
name: Mathur, S.
name: Regulo, C.
name: Ballot, J.
name: Davies, G. R.
name: Jimenez, A.
name: Simoniello, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: All p-mode parameters vary with time as a response to the changes induced by the cyclic behavior of solar magnetic activity. After the unusual long solar-activity minimum between cycles 23 and 24, where the p-mode parameters have shown a different behavior than the surface magnetic proxies, we analyze the temporal variation of low-degree p-mode parameters measured by GOLF (in velocity) and VIRGO (in intensity) Sun-as-a-star instruments on board SoHO. We then compared our results with other activity proxies.
description: Proceedings of the GONG 2012 / LWS/SDO-5 / SOHO 27 meeting. 5 pages, 5 Figures
pH-dependent Response of Coiled Coils: A Coarse-Grained Molecular Simulation Study
Creators: name: Enciso, Marta
name: Schuette, Christof
name: Site, Luigi Delle
Publisher: name: arXiv
Year: 2013
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: In a recent work we proposed a coarse-grained methodology for studying the response of peptides when simulated at different values of pH; in this work we extend the methodology to analyze the pH-dependent behavior of coiled coils. This protein structure presents a remarkable chain stiffness andis formed by two or more long helical peptides that are interacting like the strands of a rope. Chain length and rigidity are the key aspects needed to extend previous peptide interaction potentials to this particular case; however the original model is naturally recovered when the length or the ridigity of the simulated chain are reduced. We apply the model and discuss results for two cases: (a) the folding/unfolding transition of a generic coiled coil as a function of pH; (b) behavior of a specific sequence as a function of the acidity conditions. In this latter case results are compared with experimental data from the literature in order to comment about the consistency of our approach.
RECENT TRENDS IN MULTIDISCIPLINARY RESEARCH VOLUME - 7
Creators: name: PANDEY, SHIVAM
Publisher: name: RED'SHINE PUBLICATION PVT. LTD
Year: 2023
Subjects: RECENT TRENDS IN MULTIDISCIPLINARY RESEARCH VOLUME - 7

description: International Peer-Reviewed Edited Book on RECENT TRENDS IN MULTIDISCIPLINARY RESEARCH VOLUME - 7
Imaging Universal Conductance Fluctuations in Graphene
Creators: name: Borunda, Mario F.
name: Berezovsky, Jesse
name: Westervelt, Robert M.
name: Heller, Eric J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study conductance fluctuations (CF) and the sensitivity of the conductance to the motion of a single scatterer in two-dimensional massless Dirac systems. Our extensive numerical study finds limits to the predicted universal value of CF. We find that CF are suppressed for ballistic systems near the Dirac point and approach the universal value at sufficiently strong disorder. The conductance of massless Dirac fermions is sensitive to the motion of a single scatterer. CF of order $e^2/h$ result from the motion of a single impurity by a distance comparable to the Fermi wavelength. This result applies to graphene systems with a broad range of impurity strength and concentration while the dependence on the Fermi wavelength can be explored {\em via} gate voltages. Our prediction can be tested by comparing graphene samples with varying amounts of disorder and can be used to understand interference effects in mesoscopic graphene devices.
description: 15 Pages, 3 Figures. Related papers at this http URL
Scaling laws in critical random Boolean networks with general in- and out-degree distributions
Creators: name: Möller, Marco
name: Drossel, Barbara
Publisher: name: arXiv
Year: 2013
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We evaluate analytically and numerically the size of the frozen core and various scaling laws for critical Boolean networks that have a power-law in- and/or out-degree distribution. To this purpose, we generalize an efficient method that has previously been used for conventional random Boolean networks and for networks with power-law in-degree distributions. With this generalization, we can also deal with power-law out-degree distributions. When the power-law exponent is between 2 and 3, the second moment of the distribution diverges with network size, and the scaling exponent of the nonfrozen nodes depends on the degree distribution exponent. Furthermore, the exponent depends also on the dependence of the cutoff of the degree distribution on the system size. Altogether, we obtain an impressive number of different scaling laws depending on the type of cutoff as well as on the exponents of the in- and out-degree distributions. We confirm our scaling arguments and analytical considerations by numerical investigations.
Time and space dependence of electromagnetic field in relativistic heavy-ion collisions
Creators: name: Tuchin, Kirill
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Exact analytical solution for the space-time evolution of electromagnetic field in electrically conducting nuclear matter produced in heavy-ion collisions is discussed. It is argued that the parameter that controls the strength of the matter effect on the field evolution is $σγb$, where $σ$ is electrical conductivity, $γ$ is the Lorentz boost-factor and $b$ is the characteristic transverse size of the matter. When this parameter is of the order one or larger, which is the case at RHIC and LHC, space-time dependence of electromagnetic field is completely different form that in vacuum.
description: 7 pages
A Toroidal Magnetised Iron Neutrino Detector (MIND) for a Neutrino Factory
Creators: name: Bross, A.
name: Wands, R.
name: Bayes, R.
name: Laing, A.
name: Soler, F. J. P.
name: Villanueva, A. Cervera
name: Ghosh, T.
name: Cadenas, J. J. Gómez
name: Hernández, P.
name: Martín-Albo, J.
name: Burguet-Castell, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A neutrino factory has unparalleled physics reach for the discovery and measurement of CP violation in the neutrino sector. A far detector for a neutrino factory must have good charge identification with excellent background rejection and a large mass. An elegant solution is to construct a magnetized iron neutrino detector (MIND) along the lines of MINOS, where iron plates provide a toroidal magnetic field and scintillator planes provide 3D space points. In this report, the current status of a simulation of a toroidal MIND for a neutrino factory is discussed in light of the recent measurements of large $θ_{13}$. The response and performance using the 10 GeV neutrino factory configuration are presented. It is shown that this setup has equivalent $δ_{CP}$ reach to a MIND with a dipole field and is sensitive to the discovery of CP violation over 85% of the values of $δ_{CP}$.
description: Results from the studies of a far detector at a neutrino factory as part of the European Framework Programme 7 project, EUROnu. 35 pages, 13 figures
Russiske bevægelsesverber i tysk oversættelse
Creators: name: Podolak, Martin
Publisher: name: Zenodo
Year: 2013
Subjects: Russian, German, translation, verbs of motion, corpus linguistics

description: Komparativt set findes der mange ligheder mellem tysk og russisk i måden hvorpå ”bevægelse i rum” benævnes. Både tysk og russisk benytter sig fortrinsvist af verber, som råder over et lignende sæt af kategorier. Mange af verbalkategorierne som fx tempus, diatese, numerus eller person findes parallelt i begge sprog. Fra en kontrastiv vinkel er der dog flere iøjnefaldende forskelle. Såvel den obligatoriske kategori aspekt som den i russisk særlig markerede gruppe af altid parvis (korrelation) optrædende bevægelsesverber savnes på tysk. En oversætter fra russisk står således foran problemet, hvordan indholdet af den funktionel-semantisk kategori, der beskriver bevægelse i rum og konstitueres af bevægelsesverberne (BV), oversættes ved hjælp af de kategorier, der står oversætteren til rådighed i målsproget. Samme gælder med omvendt fortegn oversætteren til russisk som, ved brug af BV i målsproget, står over for det obligatoriske valg om, hvilken af de to BV der skal vælges. I det følgende vil jeg med hjælp af eksempler fra forskellige litterære oversættelser analysere, på hvilke måder oversætterne løser problemet. I denne opgave vil jeg på empirisk grundlag sammenligne, hvordan russiske BV oversættes til tysk og hvor tyske verber oversættes til et russisk ækvivalent BV. Efter at fremstille de problemer en oversætter møder i oversættelsesprocessen, vil jeg redegøre for nogle af de muligheder vi har for at undersøge oversættelser af BV på en kvantitativ måde vha. parallelkorpora. De forskellige betydninger, som determinerede og indeterminerede BV kan have, danner grundlag for analysen. Hver betydning afhandles i et kapitel, hvor både tysk-russisk og russisk-tysk eksempler skal hjælpe ved at finde frem til mere generelle udsagn om, hvordan betydningen kan oversættes. Fokusset på denne kontrastiv og oversættelsesvidenskabelig undersøgelse ligger således på ækvivalens med drejningspunktet i russiske simplekse BV og på de muligheder vi har for at lave tilsvarende undersøgelse indenfor korpuslingvistikken.
Modern Architecture Symposium
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2020
Subjects: Architecture, Modern

description: 3rd MAS: The Third Modern Architecture Symposium took place at Columbia University in New York May 14-15, 1966. The decade 1907-1917 was discussed. Henry-Russell Hitchcock was Chairman and member of the organizing committee. An additional member of that committee was George Collins.
Bedürfnisse und Anforderungen der Generation Z an ihre Arbeit(gebenden)
Creators: name: Burri, Norina Elina
Publisher: name: Hochschule für Angewandte Psychologie FHNW
Year: 2023
Subjects: subject: Fachkräftemangel
subject: Arbeitgebendenakktraktivität
subject: demografischer Wandel
subject: SBB
subject: Bedürfnisse
subject: Anforderungen
subject: Generation Z
subject: 300 - Sozialwissenschaften, Soziologie, Anthropologie
subject: 330 - Wirtschaft

description: Damit Unternehmen trotz Fachkräftemangel und demografischem Wandel erfolgreich Personal gewinnen und binden können, müssen sie als attraktive Arbeitgebende wahrgenommen werden. Die SBB ist sich dieser Situation bewusst und setzt sich deshalb mit den Bedürfnissen und Anforderungen der jüngsten Generationen auf dem Arbeitsmarkt auseinander. Diese Bachelorarbeit untersucht die Bedürfnisse und Anforderungen der Generation Z an ihre Arbeit und die Kriterien, die für diese Generation ausschlaggebend sind bei der Wahl von Arbeitgebenden. Zudem analysiert die Arbeit, inwiefern die Bedürfnisse und Anforderungen der Generation Z in der SBB befriedigt werden. Die Daten dazu stammen aus einer Onlinebefragung (N=120) auf dem Arbeitsmarkt und zwei Gruppendiskussionen (N=9) innerhalb der SBB. Der Onlinefragebogen wurde deskriptiv-statistisch und die Gruppendiskussionen über eine strukturierende qualitative Inhaltsanalyse ausgewertet. Die Resultate zeigen, dass die Generation Z viele Bedürfnisse und hohe Anforderungen an ihre Arbeit hat und vor allem Motive wie Freiraum, Entwicklung, Sinnstiftung und soziale Faktoren priorisiert. Ihre Arbeitgebenden wählt sie aufgrund von Unternehmenswerten wie Nachhaltigkeit, Diversität und Fortschritt aus sowie zur Befriedigung der eigenen Bedürfnisse. Die Gruppendiskussionen zeigten, dass die SBB die Bedürfnisse und Anforderungen der Generation Z ernst nimmt und sie fast vollständig befriedigt.
title: E-Learning an der Technischen Hochschule Brandenburg – Bereitstellung eines hochschulweiten Weiterbildungsangebotes zu Themen der Informationskompetenz
Creators: name: Ney, Audrey
Publisher: name: Technische Hochschule Brandenburg
Year: 2022
Subjects: subject: 000 Informatik, Informationswissenschaft, allgemeine Werke
subject: 020 Bibliotheks- und Informationswissenschaften
subject: 330 Wirtschaft

description: Die vorliegende Arbeit beschäftigt sich mit der Frage, wie ein E-Learning-Angebot an der Technischen Hochschule Brandenburg das Interesse am Thema der Informationskompetenz steigern sowie diese Kompetenzen entsprechend vermitteln kann. Der Fokus liegt dabei auf zwei quantitativen Umfragen, der Erstellung eines Kurses in Moodle sowie eine Handlungsempfehlung, um die Digitale Lehre an der THB und der Hochschulbibliothek weiter zu etablieren.
OS FILHOS DE GOEBBLES
Creators: name: Pavao Santana, Jose Claudio
Publisher: name: Zenodo
Year: 2025

description: Ano 11 – n. 03/2023 – https://doi.org/10.5281/zenodo.8332750

Hoje, ao tentar publicar na rede social facebook recebi a seguinte

mensagem:

“We added restrictions to your account.
Nonlinear heat transport in mesoscopic conductors: Rectification, Peltier effect and Wiedemann-Franz law
Creators: name: Lopez, Rosa
name: Sanchez, David
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate nonlinear heat properties in mesoscopic conductors using a scattering theory of transport. Our approach is based on a leading-order expansion in both the electrical and thermal driving forces. Beyond linear response, the transport coefficients are functions of the nonequilibrium screening potential that builds up in the system due to interactions. Within a mean-field approximation, we self-consistently calculate the heat rectification properties of a quantum dot attached to two terminals. We discuss nonlinear contributions to the Peltier effect and find departures from the Wiedemann-Franz law in the nonlinear regime of transport.
description: 8 pages, 4 figures
The minimal adjoint-SU(5)xZ_4 GUT model
Creators: name: Emmanuel-Costa, D.
name: Simoes, C.
name: Tortola, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: An extension of the adjoint SU(5) model with a flavour symmetry based on the Z_4 group is investigated. The Z_4 symmetry is introduced with the aim of leading the up- and down-quark mass matrices to the Nearest-Neighbour-Interaction form. As a consequence of the discrete symmetry embedded in the SU(5) gauge group, the charged lepton mass matrix also gets the same form. Within this model, light neutrinos get their masses through type-I, type-III and one-loop radiative seesaw mechanisms, implemented, respectively, via a singlet, a triplet and an octet from the adjoint fermionic 24 fields. It is demonstrated that the neutrino phenomenology forces the introduction of at least three 24 fermionic multiplets. The symmetry SU(5)xZ_4 allows only two viable zero textures for the effective neutrino mass matrix. It is showed that one texture is only compatible with normal hierarchy and the other with inverted hierarchy in the light neutrino mass spectrum. Finally, it is also demonstrated that Z_4 freezes out the possibility of proton decay through exchange of colour Higgs triplets at tree-level.
description: 25 pages, 4 figures, 3 tables
Analysis of structural equations in relation to marital conflicts and emotional security with perceived stress and pregnancy worries mediated by psychological well-being in pregnant women
Creators: name: Abbasmofrad, Horrieh
name: Khalatbari, Javad
name: Mohammadi Shir Mahalla, Fatemeh
name: Shafti, Vida
Publisher: name: figshare
Year: 2023
Subjects: Psychosocial aspects of childbirth and perinatal mental health
Social and personality psychology not elsewhere classified
Clinical psychology
Health psychology
Mental health services

description: Background: Pregnancy is one of the most important events in a womanchr('39')s life. Although for most women it is a pleasant period, it is often considered stressful, involving physiological and psychological changes, so that the occurrence of a series of discomforts and problems can have significant effects on pregnant women’s mental state. Aims: The aim of this study was to determine the fit of the model of the relationship between marital conflict and Emotional security with perceived stress and Pregnancy worries and through the mediation of psychological Well-being in pregnant women. Method: The research method was descriptive-correlational and the statistical population of this study included pregnant women referring to gynecology and obstetrics clinics and Ramsar city hospital in the period of February 2017 to April 2017. 384 people were selected as a sample using simple random sampling method. Data Collection included Tools Questionnaire, Psychological Well-being Scale, Pregnancy worries Questionnaire, Perceived Stress Questionnaire and Revised Emotional security test .Data analysis was performed using structural equation modeling. The study of this findings show that there is a relation between marital conflict and perceived stress mediated by psychological Well-being in pregnant women. Results: There is relationship between marital conflicts and pregnancy worries with the mediation of psychological Well-being in pregnant women. There was no relationship between marital conflicts and biological characteristics mediated by psychological Well-being in pregnant women. There is relationship between emotional secure, perceived stress and pregnancy concerns mediated by psychological Well-being in pregnant women. (P <0.05). There was no relationship between Emotional security and biological characteristics mediated by psychological Well-being in pregnant women. Conclusions: Marital conflicts and Emotional security through predictive psychological Well-being play a predictive role on perceived stress and pregnancy concerns in pregnant women.
Strangeness magnetic form factor of the proton in the extended chiral quark model
Creators: name: An, C. S.
name: Saghai, B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Background: Unravelling the role played by nonvalence flavors in baryons is crucial in deepening our comprehension of QCD. Strange quark, a component of the higher Fock states in baryons, is an appropriate tool to investigate nonperturbative mechanisms generated by the pure sea quark. Purpose: Study the magnitude and the sign of the strangeness magnetic moment $μ_s$ and the magnetic form factor ($G_M^s$) of the proton. Methods: Within an extended chiral constituent quark model, we investigate contributions from all possible five-quark components to $μ_s$ and $G_M^s (Q^2)$ in the four-vector momentum range $Q^2 \leq 1$ (GeV/c)$^2$. Probability of the strangeness component in the proton wave function is calculated employing the $^3 P_0$ model. Results: Predictions are obtained without any adjustable parameters. Observables $μ_s$ and $G_M^s (Q^2)$ are found to be small and negative, consistent with the lattice-QCD findings as well as with the latest data released by the PVA4 and HAPPEX Collaborations. Conclusions: Due to sizeable cancelations among different configurations contributing to the strangeness magnetic moment of the proton, it is indispensable to (i) take into account all relevant five-quark components and include both diagonal and non-diagonal terms, (ii) handle with care the oscillator harmonic parameter $ω_5$ and the ${s \bar s}$ component probability.
description: References added, typos corrected, accepted for publication by Phys. Rev. C
Theory of plasmon-enhanced metal photoluminescence
Creators: name: Shahbazyan, Tigran V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Metal photoluminescence (MPL) originates from radiative recombination of photoexcited core holes and conduction band electrons. In metal nanostructures, MPL is enhanced due to the surface plasmon local field effect. We identify another essential process in plasmon-assisted MPL - excitation of Auger plasmons by core holes - that hinders MPL from small nanostructures. We develop a microscopic theory of plasmon-enhanced MPL that incorporates both plasmon-assisted enhancement and suppression mechanisms and derive the enhancement factor for MPL quantum efficiency. Our numerical calculations of MPL from Au nanoparticles are in excellent agreement with the experiment.
description: 6 pages, 3 figures
Preliminary DIMM and MASS Nighttime Seeing Measurements at PEARL, in the Canadian High Arctic
Creators: name: Steinbring, Eric
name: Millar-Blanchaer, Max
name: Ngan, Wayne
name: Murowinski, Rick
name: Leckie, Brian
name: Carlberg, Ray
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Results of deploying a Differential Image Motion Monitor (DIMM) and a DIMM combined with a Multi-Aperture Scintillation Sensor (MASS/DIMM) are reported for campaigns in 2011 and 2012 on the roof of the Polar Environment Atmospheric Research Laboratory (PEARL). This facility is on a 610-m-high ridge at latitude 80 degrees N, near the Eureka weatherstation on Ellesmere Island, Canada. The median seeing at 8-m elevation is 0.85 arcsec or better based on DIMM data alone, but is dependent on wind direction, and likely includes a component due to the PEARL building itself. Results with MASS/DIMM yield a median seeing less than 0.76 arcsec. A semi-empirical model of seeing versus ground wind speed is introduced which allows agreement between these datasets, and with previous boundary-layer profiling by lunar scintillometry from the same location. This further suggests that best 20 percentile seeing reaches 0.53 arcsec, of which typically 0.30 arcsec is due to the free atmosphere. Some discussion for guiding future seeing instrumentation and characterization at this site is provided.
description: 16 pages, 11 figures, accepted for PASP
Generative AI and second/foreign language education from Vygotsky's cultural-historical perspective
Creators: name: Cong-Lem, Ngo
name: Daneshfar, Samran
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 520102
subject: Educational psychology
classificationCode: 470306
subject: English as a second language
classificationCode: 470307
subject: English language
classificationCode: 470401
subject: Applied linguistics and educational linguistics
classificationCode: 390405
subject: Educational technology and computing

description: In this book chapter, we carefully examine how generative artificial intelligence, such as ChatGPT, can facilitate second/foreign language acquisition from a Vygotsky’s cultural-historical perspective. Core theoretical concepts from Vygotsky's works include perezhivanie, speech development, and the zone of proximal development (ZPD). Three foundational principles for understanding second language acquisition within this framework encompass: (1) considering the environment as a wellspring of the ideal forms of the target language, (2) emphasizing internalization through active and meaningful social interactions, and (3) acknowledging optimal second language acquisition when effectively scaffolded in the zone of proximal development of the individual. Furthermore, we underscore the significance of ChatGPT's capabilities, including providing input in the target language, simulating genuine conversations, responding to queries on various subjects, and furnishing feedback—essential functions for cultivating the process of learning a second or foreign language.
Generation of non-classical photon states in superconducting quantum metamaterials
Creators: name: Mukhin, S. I.
name: Fistul, M. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report a theoretical study of diverse non-classical photon states that can be realized in superconducting quantum metamaterials. As a particular example of superconducting quantum metamaterials an array of SQUIDs incorporated in a low-dissipative transmission line (resonant cavity) will be studied. This system will be modeled as a set of two-levels systems (qubits) strongly interacting with resonant cavity photons. We predict and analyze {a second(first)-order phase transition} between an incoherent (the high-temperature phase) and coherent (the low-temperatures phase) states of photons. In equilibrium state the partition function $Z$ of the electromagnetic field (EF) in the cavity is determined by the effective action $S_{eff}\{P(τ)\}$ that, in turn, depends on imaginary-time dependent momentum of photon field $P(τ)$. We show that the order parameter of this phase transition is the $P_{0}(τ)$ minimizing the effective action of a whole system. In the incoherent state the order parameter $P_{0}(τ)=0$ but at low temperatures we obtain various coherent states characterized by non-zero values of $P_{0}(τ)$. This phase transition in many aspects resembles the Peierls metal-insulator and the metal-superconductor phase transitions. The critical temperature of such phase transition $T^\star$ is determined by the energy splitting of two-level systems $Δ$, a number of SQUIDs in the array $N$, and the strength of the interaction $η$ between SQUIDs and photons in cavity.
description: 7 pages, 2 figures, special focus issue of the Superconductor Science and Technology
Numerical modelling of gamma-ray emission produced by electrons originating from the magnetospheres of millisecond pulsars in globular clusters
Creators: name: Zajczyk, A.
name: Bednarek, W.
name: Rudak, B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Globular clusters are source of gamma-ray radiation. At GeV energies, their emission is attributed to magnetospheric activity of millisecond pulsars residing in the clusters. Inverse Compton scattering of ambient photon fields on relativistic particles diffusing through cluster environment is thought to be the source of GeV-TeV emission of globular clusters. Using pair starved polar cap model gamma-ray emission from synthetic millisecond pulsar was modelled. In addition to pulsar emission characteristics, the synthetic pulsar model yielded spectra of electrons escaping pulsar magnetosphere. To simulate gamma-ray emission of globular cluster, both products of synthetic millisecond pulsar modelling were used. Gamma-ray spectra of synthetic millisecond pulsars residing in the cluster were summed to produce the magnetospheric component of cluster emission. Electrons ejected by these pulsars were injected into synthetic globular cluster environment. Their diffusion and interaction, both, with cluster magnetic field and ambient photon fields, were performed with Bednarek & Sitarek (2007) model yielding ICS component of cluster emission. The sum of the magnetospheric and ICS components gives the synthetic gamma-ray spectrum of globular cluster. The synthetic cluster spectrum stretches from GeV to TeV energies. Detailed modelling was preformed for two globular clusters: Ter 5 and 47 Tuc. Simulations are able to reproduce (within errors) the shape and the flux level of the GeV part of the spectrum observed for both clusters with the Fermi/LAT instrument. The synthetic flux level obtained in the TeV part of the clusters' spectrum is in agreement with a H.E.S.S. upper limit determined for 47 Tuc, and with emission level recently detected for Ter 5 with H.E.S.S. telescope. The synthetic globular cluster model, however, is not able to reproduce the exact shape of the TeV spectrum observed for Ter 5.
description: 13 pages, 5 figures; accepted for publication in MNRAS
Solar surface and atmospheric dynamics: The Photosphere
Creators: name: Pillet, V. Martinez
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Various aspects of the magnetism of the quiet sun are reviewed. The suggestion that a small scale dynamo acting at granular scales generates what we call the quiet sun fields is studied in some detail. Although dynamo action has been proved numerically, it is argued that current simulations are still far from achieving the complexity that might be present on the Sun. We based this statement not so much on the low magnetic Reynolds numbers used in the simulations but, above all, in the smallness of the kinetic Reynolds numbers employed by them. It is argued that the low magnetic Prandtl number at the solar surface may pose unexpected problems for the identification of the observed internetwork fields with dynamo action at granular scales. Some form of turbulent dynamo at bigger (and deeper) scales is favored. The comparison between the internetwork fields observed by Hinode and the magnetism inferred from Hanle measurements are converging towards a similar description. They are both described as randomly oriented, largely transverse fields in the several hecto-Gauss range. These similarities are ever making more natural to assume that they are the same. However, and because of the large voids of magnetic flux observed in the spatial distribution of the internetwork fields, it is argued that they are not likely to be generated by dynamo action in the intergranular lanes. It is concluded that if a dynamo is acting at granular scales, the end product might have not been observed yet at current spatial resolutions and sensitivities with the Zeeman effect.
description: ISSI Workshop Microphysics of Cosmic Plasmas
New Geometric Transition as Origin of Particle Production in Time-Dependent Backgrounds
Creators: name: Kim, Sang Pyo
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: By extending the quantum evolution of a scalar field in time-dependent backgrounds to the complex-time plane and transporting the in-vacuum along a closed path, we argue that the geometric transition from the simple pole at infinity determines the multi-pair production depending on the winding number. We apply the geometric transition to Schwinger mechanism in the time-dependent vector potential for a constant electric field and to Gibbons-Hawking particle production in the planar coordinates of a de Sitter space.
description: RevTex 6 pages, 3 figures; references added and replaced by the version to be published in Phys. Lett. B
title: Sensitivitätsanalyse zum Einfluss landwirtschaftlicher Bewirtschaftungsformen auf die Abflussbildung von Agrarflächen bei Sturzflutereignissen
title: Sensitivity analysis of cultivation practices influencing runoff generation of agricultural land during flash flood events
titleType: Subtitle
Creators: name: Strom, Alexander
name: Hannappel, Stephan
Publisher: name: Bundesanstalt für Gewässerkunde
Year: 2020

description: Hydrologie und Wasserbewirtschaftung / BfG – Jahrgang: 64.2020,6 - ISSN 1439-1783
Diffraction Interference Induced Superfocusing in Nonlinear Talbot Effect
Creators: name: Liu, Dongmei
name: Zhang, Yong
name: Wen, Jianming
name: Chen, Zhenhua
name: Wei, Dunzhao
name: Hu, Xiaopeng
name: Zhao, Gang
name: Zhu, S. N.
name: Xiao, Min
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report a simple, novel sub-diffraction method, i.e. diffraction interference induced super-focusing in second-harmonic (SH) Talbot effect, to achieve focusing size of less than λ_pump/8 without involving evanescent waves or sub-wavelength apertures. By tailoring point spread functions with Fresnel diffraction interference, we observe periodic SH sub-diffracted spots over a hundred of micrometers away from the sample. Our demonstration is the first experimental realization of the proposal by Toraldo Di Francia pioneered 60 years ago for super-resolution imaging.
Renormalization of Higher Derivative Quantum Gravity Coupled to a Scalar with Shift Symmetry
Creators: name: Muneyuki, Kenji
name: Ohta, Nobuyoshi
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It has been suggested that higher-derivative gravity theories coupled to a scalar field with shift symmetry may be an important candidate for a quantum gravity. We show that this class of gravity theories are renormalizable in D = 3 and 4 dimensions.
description: 11 pages. arXiv admin note: substantial text overlap with arXiv:1201.2058. v2: minor corrections. v3: minor corrections to match the published version
Vacuum spherically symmetric solutions in $f(T)$ gravity
Creators: name: Atazadeh, K.
name: Mousavi, Misha
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Spherically symmetric static vacuum solutions have been built in $f(T)$ models of gravity theory. We apply some conditions on the metric components; then the new vacuum spherically symmetric solutions are obtained. Also, by extracting metric coefficients we determine the analytical form of $f(T)$.
description: 8 pages,typos corrected, Refs. added
D. Bruzzone, E. Musi (a cura di), Aver cura dell’esistenza. Studi in onore di Vanna Iori, FrancoAngeli, Milano, 2020, pagine 372, euro 40,00
Creators: name: Giusti, Mariangela
Publisher: name: Encyclopaideia
Year: 2021

description: Encyclopaideia, Vol. 25 No. 60 (2021)
The Sun-as-a-star observations: GOLF & VIRGO on SoHO, and BiSON network
Creators: name: Garcia, R. A.
name: Davies, G. R.
name: Jimenez, A.
name: Ballot, J.
name: Mathur, S.
name: Salabert, D.
name: Chaplin, W. J.
name: Elsworth, Y.
name: Regulo, C.
name: Turck-Chieze, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Sun-as-a-star observations are very important for the study of the conditions within the Sun and in particular for the deep interior where higher degree modes do not penetrate. They are also of significance in this era of dramatic advances in stellar asteroseismology as they are comparable to those measured in other stars by asteroseismic missions such as CoRoT, Kepler, and MOST. More than 17 years of continuous measurements of SoHO and more than 30 years of BiSON observations provide very long data sets of uninterrupted helioseismic observations. In this work, we discuss the present status of all these facilities that continue to provide state- of-the-art measurements and invaluable data to improve our knowledge of the deepest layers of the Sun and its structural changes during the activity cycle.
description: Proceedings of the GONG 2012 / LWS/SDO-5 / SOHO 27. 4 Pages, 5 Figures
Multistep kinetic self-assembly of DNA-coated colloids
Creators: name: Di Michele, Lorenzo
name: Varrato, Francesco
name: Kotar, Jurij
name: Nathan, Simon H.
name: Foffi, Giuseppe
name: Eiser, Erika
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Self-assembly is traditionally described as the process through which an initially disordered system relaxes towards an equilibrium ordered phase only driven by local interactions between its building blocks. However, This definition is too restrictive. Nature itself provides examples of amorphous, yet functional, materials assembled upon kinetically arresting the pathway towards the ground state. Kinetic self-assembly is intrinsically more flexible and reliable than its equilibrium counterpart, allowing control over the morphology of the final phase by tuning both the interactions and the thermodynamic pathway leading to kinetic arrest. Here we propose strategies to direct the gelation of two-component colloidal mixtures by sequentially activating selective interspecies and intra-species interactions. We investigate morphological changes in the structure of the arrested phases by means of event driven molecular dynamics (MD) simulations and experimentally using DNA-coated colloids (DNACCs). Our approach can be exploited to finely tune the morphology of multicomponent nano- or micro-porous materials with possible applications in hybrid photovoltaics, photonics and drug delivery.
description: Please email for Supplementary Informations