cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamics of episodic transient correlations in currency exchange rate returns and their predictability
Creators: name: Žukovič, Milan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Applications (stat.AP)
subject: FOS: Economics and business
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We study the dynamics of the linear and non-linear serial dependencies in financial time series in a rolling window framework. In particular, we focus on the detection of episodes of statistically significant two- and three-point correlations in the returns of several leading currency exchange rates that could offer some potential for their predictability. We employ a rolling window approach in order to capture the correlation dynamics for different window lengths and analyze the distributions of periods with statistically significant correlations. We find that for sufficiently large window lengths these distributions fit well to power-law behavior. We also measure the predictability itself by a hit rate, i.e. the rate of consistency between the signs of the actual returns and their predictions, obtained from a simple correlation-based predictor. It is found that during these relatively brief periods the returns are predictable to a certain degree and the predictability depends on the selection of the window length.
description: 19 pages, 8 figures
Divergence of the Thermal Conductivity in Uniaxially Strained Graphene
Creators: name: Pereira, Luiz Felipe C.
name: Donadio, Davide
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the effect of strain and isotopic disorder on thermal transport in suspended graphene by equilibrium molecular dynamics simulations. We show that the thermal conductivity of unstrained graphene, calculated from the fluctuations of the heat current at equilibrium is finite and converges with size at finite temperature. In contrast, the thermal conductivity of strained graphene diverges logarithmically with the size of the models, when strain exceeds a relatively large threshold value of 2%. An analysis of phonon populations and lifetimes explains the divergence of the thermal conductivity as a consequence of changes in the occupation of low-frequency out-of-plane phonons and an increase in their lifetimes due to strain.
description: 6 pages, 7 figures. Accepted for publication in Physical Review B
title: Competition as possible driver of dietary specialisation in the mushroom harvesting ant Euprenolepis procera (Hymenoptera: Formicidae)
Creators: name: Sofia, Lizon à l’Allemand
name: Brückner, Adrian
name: Hashim, Rosli
name: Witte, Volker
name: von Beeren, Christoph
Publisher: name: The Austrian Society of Entomofaunistics
Year: 2019

description: Competition between co-existing species for limited resources is considered a main driving force of niche differentiation,
including dietary specialization. Responses to interference competition vary, ranging from combat in dominant species
to avoidance in submissive ones. Submissive species often show alternative strategies to avoid competition such as quick
and efficient resource exploitation or shifts to less competitive resources. In the present study, we have evaluated the
potential role of interference competition as driver of dietary specialisation in the mushroom-harvesting formicine ant
Euprenolepis procera (Emery, 1900). This ant harvests a broad spectrum of wild-growing mushroom fruiting bodies – an
exceptional diet among ants. We asked whether competition avoidance for more typical ant diets could explain the high
degree of dietary specialization in E. procera. In baiting experiments at the Ulu Gombak field station, Malaysia, we first
showed that E. procera also utilizes alternative food sources (tuna and honey) demonstrating that mushroom-harvesting
is not a hard-wired foraging strategy. In contrast to expectations, E. procera’s competitive ability for these resources was
relatively high compared with other ants in the community. In a second experiment, we offered three resources (honey,
tuna, mushroom) simultaneously and close to each other in baiting stations. In the absence of other ants, all three resources were exploited at similarly high rates by E. procera workers. However, E. procera avoided foraging on tuna and honey baits when those baits were utilized by other ants. This context-dependent food choice behaviour in E. procera suggests that the exceptional dietary specialization on wild-growing mushrooms represents a case of competition-induced niche differentiation. Finally, we provide new data about the geographic distribution and about variability in seasonal dietary preferences of E. procera
The primary role of star-formation-driven outflows on the baryon cycle of nearby dwarf galaxies
Creators: name: Romano, Michael
Publisher: name: Zenodo
Year: 2024

description: Feedback from stars and active galactic nuclei is one of the most important processes steering the baryon cycle in galaxies, i.e., the set of complex phenomena driving the interplay between gas, dust, and star formation in their interstellar medium (ISM). Such a feedback could be strong enough to produce galactic-scale outflows able to sweep the gas out of the galaxies, drastically shaping their evolution. We investigated the impact of star-formation-driven outflows in local, low-metallicity dwarf galaxies drawn from the Dwarf Galaxy Survey. We made use of Herschel observations to detect atomic outflowing gas in the high-velocity wings of [CII] 158 µm emission line profiles. We found that outflows are ubiquitous in these galaxies, with an average outflow efficiency of the order of unity, at odds with predictions from state-of-the-art chemical evolution models. We estimated that ~40% of the gas entrained by the outflows can be expelled from the ISM, significantly enriching the surrounding circumgalactic medium. We indeed found evidence of extended atomic gas and dust reservoirs around these galaxies and compared them with those observed by ALMA in the early Universe, pointing out their possible common origin. These results highlight the key role of stellar feedback in the baryon cycle of low-mass sources, and are crucial for calibrating cosmological simulations attempting to reproduce the processes ruling the evolution of these galaxies across cosmic time.
title: Collaboration tools and services integration (COESO D3.5)
title: Collaboration tools and services integration (COESO D3.5)
titleType: Other
Creators: name: De Santis, Luca
name: Lombardo, Tiziana
name: Tankova, Alexandra
Publisher: name: Zenodo
Year: 2023
Subjects: VERA
Collaboration tools
COESO project
Open-source
Citizen Science
Open Science

description: This document accompanies the release of the "D3.5 - Collaboration tools and services integration", due in June 2023 as output of "Task 3.4 Collaboration tools and services integration". 
As documented in the COESO project description of action, this task is mainly aimed at developing connectors to applications. The VERA system has been designed to be technology agnostic allowing the use of both open and proprietary services (when used). 
VERA is a web platform that facilitates collaboration and it is centered around participatory research projects. Since collaboration nowadays already happens on a multitude of digital services and tools, therefore the approach was not to invent new tools for the community, but rather integrate into VERA those that users already use in their daily routine, to have a single access hub to all of them from the project dashboard. 
The selected Collaborative Tools are third-party web applications that have not been developed in the context of the COESO project and that were integrated into VERA to facilitate project collaboration. The integration of Collaborative Tools has been directly implemented into VERA as one of the project setup sections, where users can select the tools used by the project and add the direct link to them.
Initial Value Problem in General Relativity
Creators: name: Isenberg, James
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: This article, written to appear as a chapter in "The Springer Handbook of Spacetime", is a review of the initial value problem for Einstein's gravitational field theory in general relativity. Designed to be accessible to graduate students who have taken a first course in general relativity, the article first discusses how to reformulate the spacetime fields and spacetime covariant field equations of Einstein's theory in terms of fields and field equations compatible with a 3+1 foliation of spacetime with spacelike hypersurfaces. It proceeds to discuss the arguments which show that the initial value problem for Einstein's theory is well-posed, in the sense that for any given set of initial data satisfying the Einstein constraint equations, there is a (maximal) spacetime solution of the full set of Einstein equations, compatible with the given set of data. The article then describes how to generate initial data sets which satisfy the Einstein constraints, using the conformal (and conformal thin sandwich) method, and using gluing techniques. The article concludes with comments regarding stability and long term behavior of solutions of Einstein's equations generated via the initial value problem.
description: To appear as a chapter in "The Springer Handbook of Spacetime," edited by A. Ashtekar and V. Petkov. (Springer-Verlag, at Press)
Subttractors
Creators: name: Chakraborty, Avik
name: Krishnan, Chethan
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider extremal limits of the recently constructed "subtracted geometry". We show that extremality makes the horizon attractive against scalar perturbations, but radial evolution of such perturbations changes the asymptotics: from a conical-box to flat Minkowski. Thus these are black holes that retain their near-horizon geometry under perturbations that drastically change their asymptotics. We also show that this extremal subtracted solution ("subttractor") can arise as a boundary of the basin of attraction for flat space attractors. We demonstrate this by using a fairly minimal action (that has connections with STU model) where the equations of motion are integrable and we are able to find analytic solutions that capture the flow from the horizon to the asymptotic region. The subttractor is a boundary between two qualitatively different flows. We expect that these results have generalizations for other theories with charged dilatonic black holes.
description: 21 pages, 2 figures
Enameled Glass Panels for Solar Thermal Building Envelopes
Creators: name: Giovannetti, Federico
name: Kirchner, Maik
name: Sass, Rodja
name: Rockendorf, Gunter
Publisher: name: London : Elsevier Ltd.
Year: 2016
Subjects: subject: building integration
subject: enamel
subject: flat plate collector
subject: glass
subject: low-e coating
subject: solar architecture
subject: Buildings
subject: Collector efficiency
subject: Enameling
subject: Glass
subject: Optical data processing
subject: Solar buildings
subject: Solar heating
subject: Architectural quality
subject: Building integration
subject: E-coating
subject: Efficiency measurement
subject: Flat-plate collector
subject: Operating condition
subject: Optical measurement
subject: Solar architecture
subject: Solar absorbers
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: The paper presents a novel concept of solar thermal panel specifically intended for building integration, aiming at a higher architectural quality and at a reduction of installation costs. The panel consists of a low-emissivity enameled flat glass as solar absorber and a metallic heat exchanger, which are glued together by an adhesive layer. It features high design flexibility and can be used as roof or façade cladding in combination with common frames and profiles. We analyze the potential of the panel both as uncovered and covered collector by means of efficiency measurements on large-sized prototypes according to ISO 9806. Our results show that panels equipped with black enameled glass can achieve performance values competitive with those of commercial available products (uncovered panel: η0 = 0.75, b1 = 8.05 W/m2K, b2 = 1.64 J/m3K, bu = 0.043 s/m; covered panel: η0 = 0.74, a1 = 4.26 W/m2K, a2 = 0.013 W/m2K2). As reported by our optical measurements on small samples, colored glass can exhibit solar absorptance up to 0.93, thus representing an aesthetically appealing alternative to black panels. For its implementation, system integration, operating conditions and design aspects have to be taken into consideration.
Heterothermy and activity in the big brown bat, Eptesicus Fuscus; a field study.
Creators: name: Audet, Doris
Publisher: name: Zenodo
Year: 1987
Subjects: Biodiversity
Mammalia
Chiroptera
Chordata
Animalia
bats
bat

description: (Uploaded by Plazi for the Bat Literature Project) No abstract provided.
title: Mapping molecular gas in Super Spiral galaxies
title: Investigating star formation in unquenched massive galaxies
titleType: Subtitle
Creators: name: Cologni, Romane
name: Salomé, Philippe
name: Le Borgne, Damien
Publisher: name: Zenodo
Year: 2024

description: The population of galaxies in the high-mass range (M>10^11 Msun) is almost entirely represented by quenched early-type galaxies. Except for 6 % of the most luminous galaxies observed by Ogle et al. (2016, 2019) at redshift z<0.3, that are indeed massive super spiral galaxies (SSG). These objets are of great interest because they question our knowledge on galaxy evolution and challenge mass-quenching scenarios. They have preserved their rotation-supported disc shape as well as a standard to high star formation rate (SFR) throughout their growth process, although we know growth can severely affect both these aspects ; either by disrupting the gas and stellar dynamics (mergers, collisions) or by depriving the galaxy of its gas content (RAM pressure stripping, tidal effects, AGN feedback). As such, SSGs constitute a relevant population to study failed quenching in galaxies. Learning more about their star forming gas content is necessary to better understand star formation in such objects. In this poster, I will present preliminary results from molecular gas observations (NOEMA/IRAM) of 11 SSGs at redshift ranging z ~ [0.01 ; 0.25], which allowed us to map the distribution of the cold gas reservoir and measure the star formation efficiency, comparing it to Main Sequence galaxies.
Fannie Mae's National Housing Survey Monthly Home Purchase Sentiment Index (HPSI) and Key Indicators-July, 2022 (a subset of the complete monthly Fannie Mae National Housing Survey)
Creators: name: Foundation, Fannie Mae
Publisher: name: Roper Center for Public Opinion Research
Year: 2023

description: Economy on right/wrong track (1); personal financial situation (1); good/bad time to buy a house (1); good/bad time to sell a house (1); home price changes (3); rental price changes (3); mortgage interest rate changes (1); ability to obtain a home mortgage today (1); current homeownership status (1); renting vs. buying a home in the future (1); concern about unemployment (1); change in income (1).
An Extensive Analysis of Query by Singing/Humming System Through Query Proportion
Creators: name: Nagavi, Trisiladevi C.
name: Bhajantri, Nagappa U.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Multimedia (cs.MM)
subject: Information Retrieval (cs.IR)
subject: Sound (cs.SD)
subject: FOS: Computer and information sciences

description: Query by Singing/Humming (QBSH) is a Music Information Retrieval (MIR) system with small audio excerpt as query. The rising availability of digital music stipulates effective music retrieval methods. Further, MIR systems support content based searching for music and requires no musical acquaintance. Current work on QBSH focuses mainly on melody features such as pitch, rhythm, note etc., size of databases, response time, score matching and search algorithms. Even though a variety of QBSH techniques are proposed, there is a dearth of work to analyze QBSH through query excerption. Here, we present an analysis that works on QBSH through query excerpt. To substantiate a series of experiments are conducted with the help of Mel-Frequency Cepstral Coefficients (MFCC), Linear Predictive Coefficients (LPC) and Linear Predictive Cepstral Coefficients (LPCC) to portray the robustness of the knowledge representation. Proposed experiments attempt to reveal that retrieval performance as well as precision diminishes in the snail phase with the growing database size.
description: 14 pages,11 figures; The International Journal of Multimedia & Its Applications (IJMA) Vol.4, No.6, December 2012. arXiv admin note: text overlap with arXiv:1003.4083 by other authors
Ground-based detections of thermal emission from the dense hot Jupiter WASP-43b in H and Ks-bands
Creators: name: Wang, Wei
name: van Boekel, Roy
name: Madhusudhan, Nikku
name: Chen, Guo
name: Zhao, Gang
name: Henning, Thomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report new detections of thermal emission from the transiting hot Jupiter WASP-43b in the H and Ks-bands as observed at secondary eclipses. The observations were made with the WIRCam instrument on the CFHT. We obtained a secondary eclipse depth of 0.103$_{-0.017}^{+0.017}%$ and 0.194$_{-0.029}^{+0.029}%$ in the H and Ks-bands, respectively. The Ks band depth is consistent with previous measurement in the narrow band centered at 2.09um by Gillon et al. (2012). Our eclipse depths in both bands are consistent with a blackbody spectrum with a temperature of ~1850 K, slightly higher than the dayside equilibrium temperature without day-night energy redistribution. Based on theoretical models of the dayside atmosphere of WASP-43b, our data constrain the day-night energy redistribution in the planet to be $\lesssim 15-25$%, depending on the metal content in the atmosphere. Combined with energy balance arguments our data suggest that a strong temperature inversion is unlikely in the dayside atmosphere of WASP-43b. However, a weak inversion cannot be strictly ruled out at the current time. Future observations are required to place detailed constraints on the chemical composition of the atmosphere.
description: 7 pages, 6 figures, to be published in ApJ
title:   CONSORT Checklist, Myopia Outcome Study of Atropine in Children (MOSAIC): Design and Methodology
Creators: name: McCrann, Saoirse
Publisher: name: Technoligical University Dublin
Year: 2019

description: Purpose

The Myopia Outcome Study of Atropine in Children (MOSAIC) aims to explore the efficacy, safety, acceptability and mechanisms of action of 0.01% atropine for myopia control in a European population.

Methods

MOSAIC is an investigator-led, double-masked, placebo-controlled, randomised clinical trial (RCT) investigating the efficacy, safety and mechanisms of action of 0.01% atropine in myopia progression management. During Phase 1 of the trial, 250 children aged 6-16 years with progressive myopia apply eye drops once nightly in both eyes from randomisation to month 24. No treatment is given during Phase 2 from month 24 to 36 (washout period) for those participants initially randomised to the intervention arm (n=167), during which any potential rebound effects on termination of treatment will be monitored. All participants initially assigned to the placebo (n=83) crossover to the intervention arm of the study for Phase 2, and from month 24 to 36, instil 0.01% atropine eye drops once nightly. Further treatment and monitoring beyond 36 months is planned (Phase 3) and will be designed dependent on the outcomes of Phase 1.

Results

The primary outcome measure is spherical equivalent refractive error progression at 24 months. Secondary outcome measures include axial length change as well as the rebound, safety and acceptability profile of 0.01% atropine. Additional analyses will include the mechanisms of action of 0.01% atropine for myopia control.
Reduced-rank Adaptive Constrained Constant Modulus Beamforming Algorithms based on Joint Iterative Optimization of Filters
Creators: name: Wang, Lei
name: de Lamare, Rodrigo C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper proposes a reduced-rank scheme for adaptive beamforming based on the constrained joint iterative optimization of filters. We employ this scheme to devise two novel reduced-rank adaptive algorithms according to the constant modulus (CM) criterion with different constraints. The first devised algorithm is formulated as a constrained joint iterative optimization of a projection matrix and a reduced-rank filter with respect to the CM criterion subject to a constraint on the array response. The constrained constant modulus (CCM) expressions for the projection matrix and the reduced-rank weight vector are derived, and a low-complexity adaptive algorithm is presented to jointly estimate them for implementation. The second proposed algorithm is extended from the first one and implemented according to the CM criterion subject to a constraint on the array response and an orthogonal constraint on the projection matrix. The Gram-Schmidt (GS) technique is employed to achieve this orthogonal constraint and improve the performance. Simulation results are given to show superior performance of the proposed algorithms in comparison with existing methods.
description: 4 figures
Digital Soil Mapping of the Purdue Agronomy Center for Research and Education
Creators: name: Rahmani, Shams R
Publisher: name: Purdue University Graduate School
Year: 2020
Subjects: classificationCode: 300403
subject: Agronomy
classificationCode: 300202
subject: Agricultural land management
classificationCode: 300203
subject: Agricultural land planning
classificationCode: 300210
subject: Sustainable agricultural development
classificationCode: 300206
subject: Agricultural spatial analysis and modelling
classificationCode: 300201
subject: Agricultural hydrology

description: This research work concentrate on developing digital soil maps to support field based plant phenotyping research. We have developed soil organic matter content (OM), cation exchange capacity (CEC), natural soil drainage class, and tile drainage line maps using topographic indices and aerial imagery. Various prediction models (universal kriging, cubist, random forest, C5.0, artificial neural network, and multinomial logistic regression) were used to estimate the soil properties of interest.
title: Автобиографическая заметка Д.С. Мережковского как механизм самозапечатления в культурной памяти
Creators: name: Kholikov, Alexei
Publisher: name: AvtobiografiЯ
Year: 2012

description: The author of this article analyses Merezhkovsky’s unique autobiography and argues that the writer correlated autobiographical and literary texts in order to prove his thesis that the best autobiography is in a writer’s literary output. The article demonstrates that lacunas in The Autobiographical Note are caused not only by Merezhkovsky’s appreciation of brevity, but also by Merezhkovsky’s desire to correct his public image in the consciousness of his contemporaries and preserve it for his future readers in a way that would secure Merezhkovsky a place in the pantheon of important writers and thinkers.
Surface-confined molecular coolers for cryogenics
Creators: name: Lorusso, Giulia
name: Jenkins, Mark
name: Gonzalez-Monje, Pablo
name: Arauzo, Ana
name: Sese, Javier
name: Ruiz-Molina, Daniel
name: Roubeau, Olivier
name: Evangelisti, Marco
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: An excellent molecule-based cryogenic magnetic refrigerant, gadolinium acetate tetrahydrate, is here used to decorate selected portions of silicon substrate. By quantitative magnetic force microscopy for variable applied magnetic field near liquid-helium temperature, we demonstrate that the molecules hold intact their magnetic properties, and therefore their cooling functionality, after their deposition. Our result represents a step forward towards the realization of a molecule-based microrefrigerating device for very low temperatures.
description: 16 pages, 4+1 figures, S.I. available from authors
Importance of culture, personality and environmental awareness in automotive purchasing behavior
Creators: name: Requardt, Jost-Gerrit
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2020
Subjects: subject: culture
subject: personality
subject: environmental awareness
subject: automotive marketing
subject: structural equation modeling
subject: Kultur
subject: Persönlichkeit
subject: Umweltbewusstsein
subject: automobiles Marketing
subject: Brand Management
subject: Strukturgleichungsmodelle
subject: Dewey Decimal Classification::600 | Technik::650 | Management

description: While the automotive industry is in a historical transformation phase, it is essential for affected manufacturers to meet the associated challenges. Today, more than ever, established automotive groups are required to address the prevailing demand mechanisms as precisely as possible to remain competitive in the market. In this context, market research and the analysis of customer behavior are becoming increasingly important. Behavioral analyses offer the opportunity to accurately identify the demands of international mobility customers, to implement these needs in the form of products or brand strategies, and thus to satisfy both customer and company interests. The present cumulative dissertation consists of three research projects. The central and comprehensive objective of the individual essays was to contribute to the behavioral analysis of automotive customers and to investigate the influences of culture, personality and environmental awareness. Moreover, the relevance of behavioral theories in automotive marketing practice was assessed, and differentiators of automotive brand management were examined. Against the background of the research questions raised, partial least squares structural equation modeling (PLS-SEM) offered a very practical methodology. This analysis technique served to illustrate significant moderating characteristics of the investigated constructs such as culture, personality, and environmental awareness in the automotive/marketing-specific context and helped to investigate brand theorems (e.g., brand personality, self-congruity, and green marketing) in connection with established consumer metrics such as perception and behavior.
Image Registration for Stability Testing of MEMS
Creators: name: Memarsadeghi, Nargess
name: Moigne, Jacqueline Le
name: Blake, Peter N.
name: Morey, Peter A.
name: Landsman, Wayne B.
name: Chambers, Victor J.
name: Moseley, Samuel H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Image registration, or alignment of two or more images covering the same scenes or objects, is of great interest in many disciplines such as remote sensing, medical imaging, astronomy, and computer vision. In this paper, we introduce a new application of image registration algorithms. We demonstrate how through a wavelet based image registration algorithm, engineers can evaluate stability of Micro-Electro-Mechanical Systems (MEMS). In particular, we applied image registration algorithms to assess alignment stability of the MicroShutters Subsystem (MSS) of the Near Infrared Spectrograph (NIRSpec) instrument of the James Webb Space Telescope (JWST). This work introduces a new methodology for evaluating stability of MEMS devices to engineers as well as a new application of image registration algorithms to computer scientists.
description: Proceedings of 2011 IS&T/SPIE Electronic Imaging, Computational Imaging IX Conference, San Francisco, CA, January 2011, Vol. 7873, 78730G-1:7
title: Editorial
Creators: name: Wolf, Claus
Publisher: name: University Library Heidelberg
Year: 2015

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 44, Nr. 3 (2015), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Multilevelverfahren für nichtlineare Finite-Element Ausgleichsprobleme
Creators: name: Korsawe, Johannes Rudolf
Publisher: name: Hannover : Universität
Year: 2001
Subjects: subject: Multilevel
subject: least-squares finite-element methods
subject: inexact Newton methods
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: [no abstract]
Mössbauer Spectroscopic Study and Magnetic Investigation of Iron(III) Complexes on a Dendrimeric Basis
Creators: name: Nariaki, Driss
name: Lekovic, Faik
name: Homenya, Patrick
name: Renz, Franz
Publisher: name: Bristol : IOP Publishing Ltd.
Year: 2014
Subjects: subject: ir-spectra
subject: multistability
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: The functionalization of the molecular surface of various dendrimer generations with a phosphorous core and external amine groups is obtained by converting those amine groups into the corresponding imines of salicylaldehyde creating multiple coordination sites for the iron atoms. Treatment with iron(III) chloride yields multinuclear iron(III) complexes on a dendrimeric basis. The obtained multinuclear molecular systems exhibit extremely high total spin values. The influence of the generation growth on this type of coordination compounds is investigated by Mossbauer spectroscopy and SQUIDmagnetometry.
Radio polarimetry of compact steep spectrum sources at sub-arcsecond resolution
Creators: name: Mantovani, F.
name: Rossetti, A.
name: Junor, W.
name: Saikia, D. J.
name: Salter, C. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Aims - We report new Very Large Array polarimetric observations of Compact Steep-Spectrum (CSS) sources at 8.4, 15, and 23GHz. Methods - Using multi-frequency VLA observations we have derived sub-arcsecond resolution images of the total intensity, polarisation, and rotation measure (RM) distributions. Results heading - We present multi-frequency VLA polarisation observations of CSS sources. About half of the sources are point-like even at the resolution of about 0.1x0.1 arcseconds. The remaining sources have double or triple structure. Low values for the percentage of polarised emission in CSS sources is confirmed. On the average, quasars are more polarised than galaxies. A wide range of RM values have been measured. There are clear indications of very large RMs up to 5\,585 rad m**(-2). CSS galaxies are characterized by RM values that are larger than CSS quasars. The majority of the objects show very large values of RM. Conclusions - The available data on sub-arcsecond-scale rest-frame RM estimates for CSS sources show that these have a wide range of values extending up to about 36,000 rad m**(-2). RM estimates indicate an overall density of the magneto-ionic medium larger than classical radio sources.
description: Accepted for publication by Astronomy & Astrophysics
Structural and vibrational properties of phenanthrene under pressure
Creators: name: Huang, Qiao-Wei
name: Zhang, Jiang
name: Berlie, Adam
name: Qin, Zhen-Xing
name: Zhao, Xiao-Miao
name: Zhang, Jian-Bo
name: Tang, Ling-Yun
name: Liu, Jing
name: Zhang, Chao
name: Zhong, Guo-Hua
name: Lin, Hai-Qing
name: Chen, Xiao-Jia
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The structural and vibrational properties of phenanthrene are measured at high pressures up to 30.2 GPa by Raman spectroscopy and synchrotron x-ray diffraction techniques. Two phase transitions are observed in raman spectra under pressures of 2.3 GPa and 5.4 GPa with significant changes of intermolecular and intramolecular vibrational modes, and all the raman peaks disappeared in the luminesce background above 10.2 GPa. Upon further compression above 20.0 GPa, three broad bands are observed respectively around 1600, 2993 and 3181 cm$^{-1}$ in Raman spectra, strongly indicating that phenanthrene has transformed into amorphous hydrogenated carbon. Based on x-ray diffraction, the structures of corresponding phases observed in Raman spectra are identified with space group of $P_{\rm}2_{1}$ for phase I at 0-2.2 GPa, $P_{\rm}$2/\emph{m} for phase II at 2.2-5.6 GPa and $P_{\rm}$2/\emph{m}+\emph{Pmmm} for phase III at 5.6-11.4 GPa, and the structure above 11.4 GPa is identified with space group of \emph{Pmmm}. Although phenanthrene has amorphized above 20.0 GPa, the amorphous hydrogenated carbon clusters still remain the crystalline characteristic based on x-ray diffraction patterns. Our results suggest that the long-range periodicity and the local disorder state coexist in phenanthrene at high pressures.
description: 8 pages, 7 figures
Flat Plate Collectors with Thermochromic Absorber Coatings to Reduce Loads during Stagnation
Creators: name: Föste, Sebastian
name: Pazidis, Alexandra
name: Reineke-Koch, Rolf
name: Hafner, Bernd
name: Mercs, David
name: Delord, Christine
Publisher: name: London : Elsevier Ltd.
Year: 2016
Subjects: subject: flat plate collector
subject: overheating protection
subject: stagnation temperature
subject: system simulation
subject: thermochromic absorber coating
subject: Coatings
subject: Dust collectors
subject: Electromagnetic wave emission
subject: Solar collectors
subject: Solar heating
subject: Absorber coatings
subject: Domestic hot water preparation
subject: Efficiency measurement
subject: Flat-plate collector
subject: Overheating protection
subject: Solar thermal collector
subject: Switching temperatures
subject: System simulations
subject: Collector efficiency
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Thermochromic absorber coatings, which switch their emissivity for thermal radiation depending on temperature, are developed to reduce the stagnation temperature of solar thermal collectors: In the operating range of the collector, the surface exhibits a low emissivity (ϵ = 10%). At higher temperatures, the emissivity is increased by a multiple (ϵ = 35%). Thus, the collector heat losses raise and the stagnation temperature is reduced. Efficiency measurements on a prototype collector employing this thermochromic absorber show, that below the switching temperature the efficiency is nearly identical to that of a conventional collector with a highly selective absorber plate. Due to the increased emissivity in the switched state of the coating, the stagnation temperature is lowered by more than 30 K. System simulations exhibit, that the performance of the system is not significantly affected: in a combined system for space heating and domestic hot water preparation the conventional energy demand of the gas boiler is increased by 1.5% to 4.5% using the thermochromic collector instead of a standard collector. In contrast, the duration when formation of vapour in the collector circuit occurs, is reduced by 70% to 75%. By further optimizing thermochromic collectors, the formation of vapour in the solar circuit could be completely prevented during stagnation. This would allow the use of lower cost materials in the solar circuit and reduce the cost of installation and maintenance of the solar circuit significantly.
Entanglement of spins under a strong laser influence
Creators: name: Gerdt, V.
name: Gogilidze, S.
name: Khvedelidze, A.
name: Mladenov, D.
name: Sanadze, V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The fate of entanglement of spins for two heavy constituents of a bound state moving in a strong laser field is analyzed within the semiclassical approach. The bound state motion as a whole is considered classically beyond the dipole approximation and taking into account the magnetic field effect by using the exact solution to the Newton equation. At the same time the evolution of constituent spins under the laser influence is studied quantum mechanically. The spin density matrix is determined as solution to the von Neumann equation with the effective Hamiltonian, describing spin-laser interaction along the bound state classical trajectory. Based on the solution, the dynamics of concurrence of spins is calculated for the maximally entangled Werner states as well as for an initially uncorrelated state.
description: 9 pages
title:   SPIRIT Checklist, Myopia Outcome Study of Atropine in Children (MOSAIC): Design and Methodology
Creators: name: MCCrann, Saoirse
Publisher: name: Technological University Dublin
Year: 2019

description: Purpose

The Myopia Outcome Study of Atropine in Children (MOSAIC) aims to explore the efficacy, safety, acceptability and mechanisms of action of 0.01% atropine for myopia control in a European population.

Methods

MOSAIC is an investigator-led, double-masked, placebo-controlled, randomised clinical trial (RCT) investigating the efficacy, safety and mechanisms of action of 0.01% atropine in myopia progression management. During Phase 1 of the trial, 250 children aged 6-16 years with progressive myopia apply eye drops once nightly in both eyes from randomisation to month 24. No treatment is given during Phase 2 from month 24 to 36 (washout period) for those participants initially randomised to the intervention arm (n=167), during which any potential rebound effects on termination of treatment will be monitored. All participants initially assigned to the placebo (n=83) crossover to the intervention arm of the study for Phase 2, and from month 24 to 36, instil 0.01% atropine eye drops once nightly. Further treatment and monitoring beyond 36 months is planned (Phase 3) and will be designed dependent on the outcomes of Phase 1.

Results

The primary outcome measure is spherical equivalent refractive error progression at 24 months. Secondary outcome measures include axial length change as well as the rebound, safety and acceptability profile of 0.01% atropine. Additional analyses will include the mechanisms of action of 0.01% atropine for myopia control.

Conclusion

The generalisability of results from previous clinical trials investigating atropine for myopia control is limited by the ethnic make-up of the study populations, which were predominantly Asian. MOSAIC is the first RCT to explore the efficacy, safety and mechanisms of action of unpreserved 0.01% atropine in a predominantly white population.
title:   Myopia Outcome Study of Atropine in Children (MOSAIC): Design and Methodology
Creators: name: McCrann, Saoirse
Publisher: name: Technoligical University Dublin
Year: 2019

description: Purpose

The Myopia Outcome Study of Atropine in Children (MOSAIC) aims to explore the efficacy, safety, acceptability and mechanisms of action of 0.01% atropine for myopia control in a European population.

Methods

MOSAIC is an investigator-led, double-masked, placebo-controlled, randomised clinical trial investigating the efficacy, safety and mechanisms of action of 0.01% atropine eyedrops in myopic progression management. During phase 1 of the trial, 250 children aged 6-16 years with progressive myopia apply eye drops once nightly in both eyes from randomisation to month 24. No treatment is given during phase 2 from month 24 to 36 (washout period) for those participants initially randomised to the intervention arm (n=167), during which any potential rebound effects on termination of treatment will be monitored. All participants initially assigned to the placebo (n=83) crossover to the intervention arm of the study for phase 2, and from month 24 to 36, instil 0.01% atropine eye drops once nightly. Further treatment and monitoring beyond 36 months is planned (phase 3) and will be designed dependent on the outcomes of phase 1.
Realisation eines Materiewelleninterferometers für Moleküle und neue Möglichkeiten zur Beobachtung von Atom-Molekül-Stößen
Creators: name: Lisdat, Christian
Publisher: name: Hannover : Universität
Year: 2001
Subjects: subject: Matter-wave interferometer
subject: K2
subject: deperturbation
subject: collisions
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Magnetography of Solar Flaring Loops with Microwave Imaging Spectropolarimetry
Creators: name: Gary, Dale E.
name: Fleishman, Gregory D.
name: Nita, Gelu M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have developed a general framework for modeling gyrosynchrotron and free-free emission from solar flaring loops and used it to test the premise that 2D maps of source parameters, particularly magnetic field, can be deduced from spatially resolved microwave spectropolarimetry data. In this paper we show quantitative results for a flaring loop with a realistic magnetic geometry, derived from a magnetic field extrapolation, and containing an electron distribution with typical thermal and nonthermal parameters, after folding through the instrumental profile of a realistic interferometric array. We compare the parameters generated from forward fitting a homogeneous source model to each line of sight through the folded image data cube with both the original parameters used in the model and with parameters generated from forward fitting a homogeneous source model to the original (unfolded) image data cube. We find excellent agreement in general, but with systematic effects that can be understood as due to finite resolution in the folded images and the variation of parameters along the line of sight, which are ignored in the homogeneous source model. We discuss the use of such 2D parameter maps within a larger framework of 3D modeling, and the prospects for applying these methods to data from a new generation of multifrequency radio arrays now or soon to be available.
description: Solar Physics, Accepted, 18 pages, 11 figures
title: Rudolf Drößler, Flucht aus dem Paradies. Leben, Ausgrabungen und Entdeckungen Otto Hausers
Creators: name: Breest, Klaus
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Rudolf Drößler: Flucht aus dem Paradies. Leben, Ausgrabungen und Entdeckungen Otto Hausers. Mitteldeutscher Verlag Halle-Leipzig 1988.
384 S., 2 Zeichng., 35 fotogr. Abb. auf 25 Taf., Leinen mit Schutzumschlag
การทบทวนขอบเขตงานวิจัยด้านการท่องเที่ยวอย่างยั่งยืนของประเทศไทย
Creators: name: รักพงษ์ แสนศรี
Publisher: name: Thonburi University
Year: 2024
Subjects: การทบทวนขอบเขตงานวิจัย
การท่องเที่ยวอย่างยั่งยืน
เป้าหมายการพัฒนาอย่างยั่งยืน
นโยบายสาธารณะ

description: Journal of Humanities and Social Sciences Thonburi University, 18, 3, 1-11
Auswirkungen von Untersaaten in Weißkohlkulturen auf die Populationsdynamik der Schadinsekten, die Unkräuter und den Ertrag
Creators: name: Lehmhus, Jörn
Publisher: name: Hannover : Universität
Year: 2001
Subjects: subject: Intercropping
subject: phytophagous insects
subject: white cabbage
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Chemische Untersuchungen an den mongolischen Medizinalpflanzen Zygophyllum potaninii, Zygophyllum pterocarpum und Thermopsis hirsutissima
Creators: name: Dagvadorj, Enkhmaa
Publisher: name: Hannover : Universität Hannover
Year: 1999
Subjects: subject: Zygophyllum
subject: Thermopsis
subject: the triterpenoid saponins
subject: quinolizidine
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
${}^3$H production via neutron-neutron-deuteron recombination
Creators: name: Deltuva, A.
name: Fonseca, A. C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We study the recombination of two neutrons and deuteron into neutron and ${}^3$H using realistic nucleon-nucleon potential models. Exact Alt, Grassberger, and Sandhas equations for the four-nucleon transition operators are solved in the momentum-space framework using the complex-energy method with special integration weights. We find that at astrophysical or laboratory neutron densities the production of ${}^3$H via the neutron-neutron-deuteron recombination is much slower as compared to the radiative neutron-deuteron capture. We also calculate neutron-${}^3$H elastic and total cross sections.
description: accepted for publication in Phys. Rev. C
A Performance Comparison of Different Graphics Processing Units Running Direct N-Body Simulations
Creators: name: Capuzzo-Dolcetta, Roberto
name: Spera, Mario
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Performance (cs.PF)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Hybrid computational architectures based on the joint power of Central Processing Units and Graphic Processing Units (GPUs) are becoming popular and powerful hardware tools for a wide range of simulations in biology, chemistry, engineering, physics, etc.. In this paper we present a comparison of performance of various GPUs available on market when applied to the numerical integration of the classic, gravitational, N-body problem. To do this, we developed an OpenCL version of the parallel code (HiGPUs) to use for these tests, because this version is the only apt to work on GPUs of different makes. The main general result is that we confirm the reliability, speed and cheapness of GPUs when applied to the examined kind of problems (i.e. when the forces to evaluate are dependent on the mutual distances, as it happens in gravitational physics and molecular dynamics). More specifically, we find that also the cheap GPUs built to be employed just for gaming applications are very performant in terms of computing speed also in scientific applications and, although with some limitations in central memory and in bandwidth, can be a good choice to implement a machine for scientific use at a very good performance to cost ratio.
description: This paper has been submitted for publication to Computer Physics Communications It consists of 26 pages, with 6 tables and 10 figures
การประเมินการพัฒนาการท่องเที่ยวไทยตามแนวคิดวัฏจักรพื้นที่การท่องเที่ยว
Creators: name: บัณฑิต ชัยวิชญชาติ
Publisher: name: Thonburi University
Year: 2024
Subjects: การท่องเที่ยวไทย
ดัชนีพัฒนาการท่องเที่ยว
การพัฒนาการท่องเที่ยว
วัฏจักรพื้นที่การท่องเที่ยว

description: Journal of Humanities and Social Sciences Thonburi University, 18, 3, 12-23
การพัฒนาการจัดการโลจิสติกส์ด้านการท่องเที่ยวของตำบลท่าฉลอม จังหวัดสมุทรสาคร
Creators: name: ศรัณย์ธร บรรจงคณิต
Publisher: name: Thonburi University
Year: 2024
Subjects: การรับรู้องค์ประกอบด้านการท่องเที่ยว
ศักยภาพการจัดการโลจิสติกส์ด้านการท่องเที่ยว
การท่องเที่ยว
ท่าฉลอม

description: Journal of Humanities and Social Sciences Thonburi University, 18, 3, 24-38