cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bibliometric Analysis of Research Publications at Rajamangala University of Technology Isan: Trends and Patterns
Creators: name: Manit Sanaok
Publisher: name: Department of Information Science, Faculty of Humanities and Social Sciences, Khon Kaen University
Year: 2023
Subjects: Bibliometric, Research trends, Research patterns, Rajamangala University of Technology Isan

description: Journal of Information Science Research and Practice, 41, 4, 58–75
Analysis of Lyapunov Method for Control of Quantum Systems
Creators: name: Wang, Xiaoting
name: Schirmer, Sonia G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a detailed analysis of the convergence properties of Lyapunov control for finite-dimensional quantum systems based on the application of the LaSalle invariance principle and stability analysis from dynamical systems and control theory. For a certain class of ideal Hamiltonians, convergence results are derived both pure-state and mixed-state control, and the effectiveness of the method for more realistic Hamiltonians is discussed.
description: 20 pages, 1 figure, draft version
Überlegungen aus katholischer Sicht zum EKD-Text Nr. 69, "Kirchengemeinschaft nach evangelischem Verständnis"
Creators: name: Urban, Hans Jörg
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 51 Nr. 4 (2002): Ökumenische Rundschau, Band 51, Heft 4
The two emission states of PSR B1534+12
Creators: name: Wang, S. Q.
name: Hobbs, G.
name: Wang, J. B.
name: Manchester, R.
name: Wang, N.
name: Zhang, S. B.
name: Feng, Y.
name: Wang, W. -Y.
name: Li, D.
name: Dai, S.
name: Lee, K. J.
name: Dang, S. J.
name: Zhang, L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We have observed PSR~B1534+12 (J1537+1155), a pulsar with a neutron star companion, using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). We found that this pulsar shows two distinct emission states: a weak state with a wide pulse profile and a burst state with a narrow pulse profile. The weak state is always present. We cannot, with our current data, determine whether the pulse energy of the weak state follows a normal or a log-normal distribution. The burst state energy distribution follows a power-law. The amplitude of the single pulse emission in the burst state varies significantly; the peak flux intensity of the brightest pulse is 334 times stronger than that of the average pulse. We also examined the timing precision achievable using only bright pulses, which showed no demonstrable improvement because of pulse jitter and therefore quantified the jitter noise level for this pulsar.
description: 6 pages, 6 figures, accepted for publication in The Astrophysical Journal Letters
Minutes of meeting of the Trustees of the Winfield and Okanagan Centre Irrigation District, December 5, 1944
Creators: name: Trustees Of The Winfield And Okanagan Centre Irrigation District
Publisher: name: The University of British Columbia
Year: 2017

description: Minutes of meeting of the Trustees of the Winfield and Okanagan Centre Irrigation District, dated December 5, 1944, regarding an increase in the rate of irrigation.
Η σχέση της μνήμης εργασίας με τις γλωσσικές και μουσικές δεξιότητες σε παιδιά πρωτοσχολικής ηλικίας
Creators: name: Λέτσιου, Ολυμπία Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Εργαζόμενη μνήμη
ΜΟυσικές δεξιότητες
Ανάγνωση
Ορθογραφία
Μορφοσυντακτική επεξεργασία
Μη λεκτική νοητική ικανότητα
Working memory
Musical abilities
Reading
Orthography
MOrphosyntax process
Non verbal mental abilities

description: Η μουσική και ο λόγος είναι δύο σύνθετα ακουστικά σήματα, τα οποία ο ακροατής προσλαμβάνει, οριοθετεί και ερμηνεύει σύμφωνα με την εξέλιξή τους στο χρόνο. Ο μουσικός ρυθμός σε κάθε πολιτισμό παρουσιάζει κοινά χαρακτηριστικά με το ρυθμό της ομιλίας, και εμπλέκεται στη γνωστική και κινητική εξέλιξη. Η εργαζόμενη μνήμη είναι υπεύθυνη για την ανάπτυξη και την εξέλιξη τόσο των γλωσσικών όσο και των μουσικών δεξιοτήτων, διότι στοιχεία της γλωσσικής προσωδίας συμπλέκονται στην ίδια αντιληπτική διαδικασία που χρειάζονται στη μουσική. Η παρούσα εργασία βασίζεται σε ένα πρόσφατα σχεδιασμένο πρόγραμμα για τη μέτρηση της εργαζόμενης μνήμης, της ανάπτυξης των γλωσσικών δεξιοτήτων καθώς και των μουσικών δεξιοτήτων όπως του ρυθμού και της μελωδίας, και ασχολείται με τη σύγκριση αυτών των δεδομένων.
description: Music and speech are both complex acoustic signals that require listeners to anticipate, segment and interpret elements that unfold over time. Speech and music rhythm are universal among human cultures. Both involve organized acoustic sequences and engage cognitive and motor process. The working memory involved at development and evolution of language and music skills, because elements of speech prosody such as rhythm and pitch patterning may engage the same perceptual processes that are needed for music. This study uses a recently developed measure for the study of working memory, language skills and rhythm and melody skills as well, and compare these structures.
description: Σε συνεργασία με το Παιδαγωγικό Τμήμα Νηπιαγωγών (Πανεπιστήμιο Δυτικής Μακεδονίας)
Invisible sunspots and rate of solar magnetic flux emergence
Creators: name: Dalla, S.
name: Fletcher, L.
name: Walton, N. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the visibility of sunspots and its influence on observed values of sunspot region parameters. We use Virtual Observatory tools provided by AstroGrid to analyse a sample of 6862 sunspot regions. By studying the distributions of locations where sunspots were first and last observed on the solar disk, we derive the visibility function of sunspots, the rate of magnetic flux emergence and the ratio between the durations of growth and decay phases of solar active regions. We demonstrate that the visibility of small sunspots has a strong center-to-limb variation, far larger than would be expected from geometrical (projection) effects. This results in a large number of young spots being invisible: 44% of new regions emerging in the West of the Sun go undetected. For sunspot regions that are detected, large differences exist between actual locations and times of flux emergence, and the apparent ones derived from sunspot data. The duration of the growth phase of solar regions has been up to now underestimated.
description: A&A Lett, in press, 2008
Sentiment Analysis of New Normal Tourism Data in Chiang Mai Province After the COVID-19 Pandemic
Creators: name: Phichete Julrode
Publisher: name: Department of Information Science, Faculty of Humanities and Social Sciences, Khon Kaen University
Year: 2023
Subjects: Service user reviews, Sentiment analysis, Tourist Service, COVID-19

description: Journal of Information Science Research and Practice, 41, 4, 76–92
WKB analysis of the Logarithmic Nonlinear Schrodinger Equation in an analytic framework
Creators: name: Ferriere, Guillaume
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q55, 35Q31, 81Q20

description: We are interested in a WKB analysis of the Logarithmic Non-Linear Schrödinger Equation with "Riemann-like" variables in an analytic framework in semiclassical regime. We show that the Cauchy problem is locally well posed uniformly in the semiclassical constant and that the semiclassical limit can be performed. In particular, our framework is not only compatible with the Gross-Pitaevskii equation with logarithmic nonlinearity, but also allows initial data (and solutions) which can converge to $0$ at infinity.
On the temperature dependence of the hopping thermopower in disordered semiconductors
Creators: name: Parfenov, O. E.
name: Shklyaruk, F. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: At low temperature using thermodynamics of irreversible processes the general expressions for the temperature dependence of the thermopower in the case of the hopping conductivity for disordered materials are found. The account of influence of impurity levels degeneration on the thermopower is lead. In a view of received results experimental data of the thermopower in amorphous and impurity semiconductors are discussed.
description: 7 pages, to be published in Fiz. Tekh. Poluprovodn. (Semiconductors)
Kritische Anmerkungen zum EKD-Text "Kirchengemeinschaft nach evangelischem Verständnis"
Creators: name: Hell, Silvia
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 51 Nr. 4 (2002): Ökumenische Rundschau, Band 51, Heft 4
Emergent Structure in QCD
Creators: name: Biddle, James C.
name: Kamleh, Waseem
name: Leinweber, Derek B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The structure of the SU(3) gauge-field vacuum is explored through visualisations of centre vortices and topological charge density. Stereoscopic visualisations highlight interesting features of the vortex vacuum, especially the frequency with which singular points appear and the important connection between branching points and topological charge. This work demonstrates how visualisations of the QCD ground-state fields can reveal new perspectives of centre-vortex structure.
description: 7 pages, 5 figures. In the proceedings of CHEP 2019 - 24rd International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4-8 November 2019
Το θέμα της μυητικής διαδρομής στην υστεροβυζαντινή ιπποτική-ερωτική μυθιστορία Αφήγησις Λιβίστρου και Ροδάμνης και στη γεωργιανή ιπποτική-ερωτική μυθιστορία Ο ήρωας με δέρμα πάνθηρα:
Creators: name: Ketevan, Beridze Omar (Κετεβαν Μπεριτζε)
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Μύηση στον έρωτα
Αλληγορία
Σημειωτική του κειμένου
Μυστήριο και αρχέτυπα
Αρετές
Περιπλάνηση
Initiation in love
Allegory
Semiotic of the text
Mystery and archetype
Spiritual values
Wandering ramble

description: Στο πλαίσιο της σύγκρισης δύο κειμένων η εργασία αναπαριστά τη διαδρομή του ήρωα για την πνευματική και ηθική τελειοποίηση μέσω του ερωτικού συναισθήματος. Ο κεντρικός ήρωας περνά ορισμένα σκαλοπάτια για να μυηθεί στο απόλυτο αγαθό του έρωτα. Η έρευνα βασίζεται στις σύγχρονες λογοτεχνικές θεωρίες για τα αρχετυπικά μοτίβα που πέρασαν στη μεσαιωνική λογοτεχνία, εξετάζονται τα παραμυθικά μοτίβα, αλληγορικές σκηνές και οι προελεύσεις τους
description: By comparing two works the research is a way of perfection of soul and ethics by emans of love. The main hero goes through some particular steps of initiation to initiate the absolute godness of love (eros). The survey is based on modern literary theories about motivs of archetype, which appeared in fiction. Therefore the research studies fairy motivs, allegorical scenes and traces their origins
Re-transcription of unpublished Whilkut texts
Creators: name: Parker, Verdena
name: Jackson, Silis
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-200821-05: Re-transcription and translation of Whilkut texts transcribed by P.E. Goddard, American Philosophical Society Na20j.1, notebook #5, pp. 65-69.
Zebrus pallaoroi sp. nov.: A new species of goby (Actinopterygii: Gobiidae) from the Mediterranean Sea with a DNA-based phylogenetic analysis of the Gobius-lineage
Creators: name: Kovačić, Marcelo
name: Šanda, Radek
name: Čekovská, Katarína
name: Soukupová, Tereza
name: Vukić, Jasna
Publisher: name: Brill Online
Year: 2021
Subjects: Paleontology

description: The gobies (Gobiidae) are the most diverse fish family in the Mediterranean Sea. Nevertheless, knowledge on their diversity, taxonomy, and phylogenetic relationships is still inadequate. The phylogenetic analyses reveal two genetically highly distinct clades among specimens identified as Zebrus zebrus. A new species, Zebrus pallaoroi sp. nov., is described based on an integrative approach. The neotype of Zebrus zebrus is designated. Genetic data confirm a pronounced level of divergence between Z. pallaoroi and Z. zebrus, with the mean genetic distance on cytochrome b being 18.1% and 1.07% on rhodopsin. Phylogenetic relationships within the Gobius-lineage were estimated on both markers. Morphologically, Z. pallaoroi is distinguished from the only congener Z. zebrus by having a snout longer than its eye, posterior nostril about 4/5-9/10 of the anterior nostril, eye diameter 4.3−4.7 in head length, ventrolateral head ridges transversally connected on the anterior side by a short transversal ridge, anterior membrane midline depth about 2/3 of the spinous ray, head canal pore α diameter about half of the distance between pore ρ and ρ1, suborbital sensory papillae row 5i going downwards to or near the level of row d, the distance between row 5i and row d absent or much smaller than the length of row 5i, and the body with ten to eleven vertical dark brown bands. Zebrus pallaoroi was recorded from the southern Adriatic, northern Ionian, and northern and western Aegean Seas, and is a cryptobenthic fish from very shallow waters.
Measurement-feedback control of chiral photon emission from an atom chain into a nanofiber
Creators: name: Buonaiuto, G.
name: Lesanovsky, I.
name: Olmos, B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We theoretically investigate measurement-based feedback control of a laser-driven one-dimensional atomic chain interfaced with a nanofiber. The interfacing leads to all-to-all interactions among the atomic emitters and induces chirality, i.e. the directional emission of photons into a preferred guided mode of the nanofiber. In the setting we consider, the measurement of guided light -- conducted either by photon counting or through homodyne detection of the photocurrent quadratures -- is fed back into the system through a modulation of the driving laser field. We investigate how this feedback scheme influences the photon counting rate and the quadratures of the guided light field. Moreover, we analyse how feedback alters the many-body steady state of the atom chain. Our results provide some insights on how to control and engineer dynamics in light-matter networks realizable with state-of-the-art experimental setups.
description: 8 pages, 5 figures. Comments welcome
Double wells, scalar fields and quantum phase transitions in ions traps
Creators: name: Retzker, A.
name: Thompson, R.
name: Segal, D.
name: Plenio, M. B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Since Hund's work on the ammonia molecule, the double well potential has formed a key paradigm in physics. Its importance is further underlined by the central role it plays in the Landau theory of phase transitions. Recently, the study of entanglement properties of many-body systems has added a new angle to the study of quantum phase transitions of discrete and continuous degrees of freedom, i.e., spin and harmonic chains. Here we show that control of the radial degree of freedom of trapped ion chains allows for the simulation of linear and non-linear Klein-Gordon fields on a lattice, in which the parameters of the lattice, the non-linearity and mass can be controlled at will. The system may be driven through a phase transition creating a double well potential between different configurations of the ion crystal. The dynamics of the system are controllable, local properties are measurable and tunnelling in the double well potential would be observable.
description: 6 pages, 5 figures
The Red Queen visits Minkowski Space
Creators: name: Low, Robert J
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics Education (physics.ed-ph)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: When Alice went `Through the Looking Glass' [1], she found herself in a situation where she had to run as fast as she could in order to stay still. In accordance with the dictum that truth is stranger than fiction, we will see that it is possible to find a situation in special relativity where running towards one's target is actually counter-productive. Although the situation is easily analysed algebraically, the qualitative properties of the analysis are greatly illuminated by the use of space-time diagrams.
Diffuse MeV Gamma-rays and Galactic 511 keV Line from Decaying WIMP Dark Matter
Creators: name: Cembranos, Jose A. R.
name: Strigari, Louis E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The origin of both the diffuse high-latitude MeV gamma-ray emission and the 511 keV line flux from the Galactic bulge are uncertain. Previous studies have invoked dark matter physics to independently explain these observations, though as yet none has been able to explain both of these emissions within the well-motivated framework of Weakly-Interacting Massive Particles (WIMPs). Here we use an unstable WIMP dark matter model to show that it is in fact possible to simultaneously reconcile both of these observations, and in the process show a remarkable coincidence: decaying dark matter with MeV mass splittings can explain both observations if positrons and photons are produced with similar branching fractions. We illustrate this idea with an unstable branon, which is a standard WIMP dark matter candidate appearing in brane world models with large extra dimensions. We show that because branons decay via three-body final states, they are additionally unconstrained by searches for Galactic MeV gamma-ray lines. As a result, such unstable long-lifetime dark matter particles provide novel and distinct signatures that can be tested by future observations of MeV gamma-rays.
description: 19 pages, 4 figures
Minute Book 1938 - 1944
Creators: name: Goldie, James
name: [Unknown]
Publisher: name: The University of British Columbia
Year: 2018

description: Diary that records orchard activities on the Rainbow Ranche from May, 1938 to February, 1944. Entries note weather conditions, equipment inventories, truck mileage, irrigation, and activities such as planting, fertilizing, spraying, thinning, picking, and trucking.
Critical comparison of several order-book models for stock-market fluctuations
Creators: name: Slanina, Frantisek
Publisher: name: arXiv
Year: 2008
Subjects: subject: Trading and Market Microstructure (q-fin.TR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: Far-from-equilibrium models of interacting particles in one dimension are used as a basis for modelling the stock-market fluctuations. Particle types and their positions are interpreted as buy and sell orders placed on a price axis in the order book. We revisit some modifications of well-known models, starting with the Bak-Paczuski-Shubik model. We look at the four decades old Stigler model and investigate its variants. One of them is the simplified version of the Genoa artificial market. The list of studied models is completed by the models of Maslov and Daniels et al. Generically, in all cases we compare the return distribution, absolute return autocorrelation and the value of the Hurst exponent. It turns out that none of the models reproduces satisfactorily all the empirical data, but the most promising candidates for further development are the Genoa artificial market and the Maslov model with moderate order evaporation.
description: 17 pages, 26 figures, accepted in Eur. Phys. J. B
Model selection and parameter estimation using the iterative smoothing method
Creators: name: Koo, Hanwool
name: Shafieloo, Arman
name: Keeley, Ryan E.
name: L'Huillier, Benjamin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We compute the distribution of likelihoods from the non-parametric iterative smoothing method over a set of mock Pantheon-like type Ia supernova datasets. We use this likelihood distribution to test whether typical dark energy models are consistent with the data and to perform parameter estimation. In this approach, the consistency of a model and the data is determined without the need for comparison with another alternative model. Simulating future WFIRST-like data, we study type II errors and show how confidently we can distinguish different dark energy models using this non-parametric approach.
description: 8 pages, 6 figures, 3 tables
Η έννοια της δικαιοσύνης στον Αριστοτέλη:
Creators: name: Εμεξεζίδης, Αχιλλέας Ελευθερίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Δικαιοσύνη
Ηθική
Φυσικό δίκαιο
Αντι

description: Επισημαίνεται για ποιό λόγο είναι σημαντική η αρετή της δικαιοσύνης για τον Αριστοτέλη και γίνεται η διάκριση στα είδη αυτής. Στη συνέχεια η σημασία της αυτή αναπτύσσεται σε συνάρτηση με την κοινωνία, την πόλη και την ευδαιμονία.Ειδική αναφορά γίνεται στην αλληλεπίδραση εκπαίδευσης και Δικαιοσύνης και συγκεκριμένα στο ρόλο της εκπαίδευσης που παρέχει η πολιτεία προκειμένου να διαπαιδαγωγήσει ηθικά τους πολίτες της. Δεν είναι λίγα άλλωστε τα κοινά σημεία μεταξύ των παιδαγωγικών ιδεών του Αριστοτέλη και του σύγχρονου εκπαιδευτικού συστήματος.
description: The reason for which the virtue of justice is important in Aristoteles work is pointed out and also the distinction between it;s different meanings. Further more it;s value is explained in relation with the society, the "polis" (city) and the well-being of man.There is special reference for the inter-relation between education and justice and more specifically in the role of education that is provided by the state in order to educate it;s citizens in the meaning of ethics. The common points between Aristoteles ideas on the educational system and the contemporary system are not few.
On inverse doping profile problems for the stationary voltage-current map
Creators: name: Leitao, A.
name: Markowich, P. A.
name: Zubelli, J. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65J20, 47A52

description: We consider the problem of identifying possibly discontinuous doping profiles in semiconductor devices from data obtained by\,stationary voltage-current maps. In particular, we focus on the so-called unipolar case, a system of PDE's derived directly from the drift diffusion equations. The related inverse problem corresponds to an inverse conductivity problem with partial data. The identification issue for this inverse problem is considered. In particular, for a discretized version of the problem, we derive a result connected to diffusion tomography theory. A numerical approach for the identification problem using level set methods is presented. Our method is compared with previous results in the literature, where Landweber-Kaczmarz type methods were used to solve a similar problem.
description: 19 pages, 7 figures
Addicted to the moon: vocal output and diel pattern of vocal activity in two Neotropical nightjars is related to moon phase
Creators: name: Pérez-Granados, Cristian
name: Karl-L. Schuchmann
name: Marinez I. Marques
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified

description: The moon phase affects the ecology and vocal activity of nightjars (Caprimulgidae). However, some studies have found contradictory results regarding the impact of the moon phase on the vocal activity of nightjars. To increase our knowledge on this topic, we monitored the vocal behavior of two Neotropical nigthjars, the Little nightjar (Setopagis parvula) and the Common pauraque (Nyctidromus albicollis), over 5 lunar cycles in the Brazilian Pantanal. We tested the relationships between the moon phase and daily vocal output (number of calls uttered) and the proportions of calling activity at dusk, midnight, and dawn. Our results suggest that moonlight stimulated the vocal output of both species, since it was between 6 and 8 times higher during full moon nights than during new moon nights. Likewise, the proportion of calling activity at midnight was significantly higher during full moon nights. In contrast, the proportion of calling activity of both species was higher at dawn during new moon nights than under the full moon. The calling activity of the Common pauraque was also higher at dusk during new moon nights. These findings might be partly related to the much lower vocal output at midnight during full moon nights and therefore higher proportions of vocal activity at dusk and at dawn under new moon scenarios. This is the first study comparing the vocal behavior of two Neotropical nightjars over different moon phases and shows that the impact of moonlight may differ between species and at a daily scale when analyzing the periods with the highest and lowest illumination. The consequences of the increase in vocal output under moonlight are unknown and should be assessed.
Structure and dynamics of the class I young stellar object L1489 IRS
Creators: name: Brinch, C.
name: Crapsi, A.
name: Hogerheijde, M. R.
name: Jorgensen, J. K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the velocity transition in the low-mass protostar L1489 IRS, which is known to be embedded in a flattened, disc-like structure that shows both infall and rotation. We construct a model for L1489 IRS consisting of an flattened envelope and a velocity field that can vary from pure infall to pure rotation. We obtain best-fit parameters by comparison to 24 molecular transitions from the literature, and using a molecular excitation code and a Voronoi optimisation algorithm. We test the model against existing millimeter interferometric observations, near-infrared scattered light imaging, and 12CO ro-vibrational lines.We find that L1489 IRS is well described by a central stellar mass of 1.3M$_\odot$ surrounded by a 0.10M$_\odot$ flattened envelope with approximate scale height h\approx 0.57 R, inclined at 74^\circ. The velocity field is strongly dominated by rotation, with the velocity vector making an angle of 15^\circ with the azimuthal direction. Reproducing low-excitation transitions requires that the emission and absorption by the starless core 1' (8400 AU) east of L1489 IRS is included properly, implying that L1489 IRS is located partially behind this core. We speculate that L1489 IRS was originally formed closer to the center of this core, but has migrated to its current position over the past few times 10^5 yr, consistent with their radial velocity difference of 0.4 kms-1. This suggests that L1489 IRS' unusual appearance may be result of its migration, and that it would appear as a `normal' embedded protostar if it were still surrounded by an extended cloud core. Conversely, we hypothesize that the inner envelopes of embedded protostars resemble the rotating structure seen around L1489 IRS.
description: Accepted by A&A, 10 Nov, 2006, 12 pages
The VLT-MUSE and ALMA view of the MACS 1931.8-2635 brightest cluster galaxy
Creators: name: Ciocan, B. I.
name: Ziegler, B. L.
name: Verdugo, M.
name: Papaderos, P.
name: Fogarty, K.
name: Donahue, M.
name: Postman, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We reveal the importance of ongoing in-situ star formation in the Brightest Cluster Galaxy in the massive cool-core CLASH cluster MACS 1931.8-2635 at z=0.35. Using a multi-wavelength approach, we assess the stellar and warm ionized medium components, spatially resolved by the VLT-MUSE spectroscopy, and link them to the molecular gas by incorporating sub-mm ALMA observations. We measure the fluxes of strong emission lines, allowing us to determine the physical conditions of the warm ionized gas. The ionized gas flux brightness peak corresponds to the location of the supermassive black hole and the system shows a diffuse warm ionized gas tail extending 30 kpc in N-E direction. The ionized and molecular gas are co-spatial and co-moving, with the gaseous component in the tail falling inward, providing fuel for star formation and accretion-powered nuclear activity. The gas is ionized by a mix of star formation and other energetic processes which give rise to LINER-like emission, with active galactic nuclei emission dominant only in the BCG core. We measure a star formation rate of 97 Msun/yr, with its peak at the BCG core. However, star formation accounts for only 50-60% of the energetics needed to ionize the warm gas. In situ star formation generated by thermally unstable intracluster medium cooling and/or dry mergers dominate the stellar mass growth at z<0.5 and these mechanisms account for the build-up of 20% of the mass of the system. Our measurements reveal that the most central regions of the BCG contain the lowest gas phase oxygen abundance, whereas the tail exhibits slightly more elevated values. The galaxy is a dispersion dominated system, typical for massive, elliptical galaxies. The gas and stellar kinematics are decoupled, with the gaseous velocity fields being more closely related to the bulk motions of the intracluster medium.
description: Accepted for publication in A&A on 26.01.2021; Abstract abridged for arXiv; 31 pages, 20 figures
Transcription of a story about selling Avon products
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio files VP-200821-02 and VP-200821-03: Transcription of a story about selling Avon products door-to-door, file VP-201217-06, from 25:51 to 28:03 (VP-200821-02) and from 28:03 to the end of the file (VP-200821-03).
Gravitational wave spectra from oscillon formation after inflation
Creators: name: Hiramatsu, Takashi
name: Sfakianakis, Evangelos I.
name: Yamaguchi, Masahide
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We systematically investigate the preheating behavior of single field inflation with an oscillon-supporting potential. We compute the properties of the emitted gravitational waves (GWs) and the number density and characteristics of the produced oscillons. By performing numerical simulations for a variety of potential types, we divide the analyzed potentials in two families, each of them containing potentials with varying large- or small-field dependence. We find that the shape and amplitude of the emitted GW spectrum have a universal feature, with the peak around the physical wavenumber $k/a \sim m$ at the inflaton oscillation period, irrespective of the exact potential shape. This can be used as a smoking-gun for deducing the existence of a violent preheating phase and possible oscillon formation after inflation. Despite this apparent universality, we find differences in the shape of the emitted GW spectra between the two potential families, leading to discriminating features between them. In particular, all potentials show the emergence of a two-peak structure in the GW spectrum, arising at the time of oscillon formation. However, potentials exhibiting efficient parametric resonance tend to smear out this structure and by the end of the simulation the GW spectrum exhibits a single broad peak. We further compute the properties of the produced oscillons for each potential, finding differences in the number density and size distribution of stable oscillons and transient overdensities. We perform a linear fluctuation analysis and use Floquet charts to relate the results of our simulations to the structure of parametric resonance. We find that the growth rate of scalar perturbations and the associated oscillon formation time are sensitive to the small-field potential shape while the macroscopic physical properties of oscillons (e.g. total number) depend on the large-field potential shape.
description: 24 pages, 20 figures
Synthesis, characterization and application of pyrimidopteridine based photocatalysts
Creators: name: Hauptmann, Richy
Publisher: name: Universität Rostock
Year: 2020
Subjects: subject: 540 Chemistry & allied sciences

description: PPTNOs are structurally related to flavins and share their reactivity to a certain degree. This similarity was shown in isomerization and oxidation reactions. PPTNOs are very potent photocatalysts that even enable oxidation reactions of mono substituted amines. The potency of the PPTNOS was revealed in a photocatalytic hydroamination using stilbenes and mono substituted amines. Subsequently a photocatalytic trifluoromethylation was investigated to further show the applicability of these photocatalysts.
Το θέατρο για παιδικό κοινό στη Θεσσαλονίκη κατά την περίοδο 1997-2007:
Creators: name: Γιαγκούλη, Χριστίνα Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Θέατρο για παιδιά
Θεσσαλονίκη
Νέο θέατρο
Πειραματική σκηνή
ΚΒΘΕ
Theatre for children
Thessaloniki
NTNG
Peiramatiki skini
Experimental stage of art

description: Το συγκεκριμένο εκπόνημα δίνει μια γενική εικόνα του θεατρικού τοπίου ως προς το θέατρο για παιδιά στη Θεσσαλονίκη, δίνοντας έμφαση στους τρεις κυριότερους θεατρικούς οργανισμούς, που επιλέχτηκαν λόγω της μακρόχρονης ιστορίας τους και της σταθερής προσφοράς στον τομέα του θεάτρου για παιδιά: το Κρατικό Θέατρο Βορείου Ελλάδος,την Πειραματική Σκηνή της «Τέχνης» και το Νέο Θέατρο Θεσσαλονίκης. Η μελέτη ξεκινάει με μια ιστορική αναδρομή του θεάτρου για παιδιά στον ελλαδικό χώρο αλλά και ειδικότερα στην Θεσσαλονίκη,προκειμένου να αποκτήσει ο αναγνώστης μια γενική εικόνα της πορείας του συγκεκριμένου είδους θεάτρου στην Ελλάδα.Στο κύριο μέρος της γίνεται εκτενής αναφορά στις παραστάσεις των τριών θιάσων το διάστημα 1997-2007.Ολοκληρώνεται με συμπεράσματα και προτάσεις του μελετητή.
description: The current study refers to the field of theatre for children in thessaloniki from 1997 to 2007 and particular analyze the performances of three historical theatre companies. These are "New Theatre of thessaloniki" (Neo theatro thessalonikis),"National theatre of Northern Greece" (NTNG) and "Experimental Stage of art" (Peiramatiki skini tis "tehnis")
Synthetic Spectrum Constraints on a Model of the Cataclysmic Variable QU Carinae
Creators: name: Linnell, Albert P.
name: Godon, Patrick
name: Hubeny, Ivan
name: Sion, Edward M.
name: Szkody, Paula
name: Barrett, Paul E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Neither standard model SEDs nor truncated standard model SEDs fit observed spectra of QU Carinae with acceptable accuracy over the range 900Åto 3000Å. Non-standard model SEDs fit the observation set accurately. The non-standard accretion disk models have a hot region extending from the white dwarf to $R=1.36R_{\rm wd}$,a narrow intermediate temperature annulus, and an isothermal remainder to the tidal cutoff boundary. The models include a range of $\dot{M}$ values between $1.0{\times}10^{-7}M_{\odot} {\rm yr}^{-1}$ and $1.0{\times}10^{-6}M_{\odot} {\rm yr}^{-1}$ and limiting values of $M_{\rm wd}$ between $0.6M_{\odot}$ and $1.2M_{\odot}$. A solution with $M_{\rm wd}=1.2M_{\odot}$ is consistent with an empirical mass-period relation. The set of models agree on a limited range of possible isothermal region $T_{\rm eff}$ values between 14,000K and 18,000K. The model-to-model residuals are so similar that it is not possible to choose a best model. The Hipparcos distance, 610 pc, is representative of the model results. The orbital inclination is between $40\arcdeg$ and $60\arcdeg$.
description: 52 pages, 19 Figures
Spending by G20 Members
Creators: name: Guevara, Stefani
Publisher: name: Zenodo
Year: 2021
Subjects: economic spending

description: The G20 consists of 20 of the world's major economies, with its members accounting for "more than 80% of world GDP, 75% of global trade and 60% of the population of the planet." For this project, we will be looking at the economic spending of 12 of these members. This project constitutes an investigation into how these 12 countries spend on eduction, healthcare and national defense -- three important indicators that bolster and secure the economic and social well-being of a nation. G20 Members for this Project: Argentina, Australia, Brazil, China, Germany, Indonesia, Italy, Japan, Mexico, Russia, United States, United Kingdom. If interested in this project, please feel free to see the accompanying zip file which holds the data, images, and the pre-processing python file.
Visualisations of Centre Vortices
Creators: name: Biddle, James C.
name: Kamleh, Waseem
name: Leinweber, Derek B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The centre vortex structure of the vacuum is visualised through the use of novel 3D visualisation techniques. These visualisations allow for a hands-on examination of the centre-vortex matter present in the QCD vacuum, and highlights some of the key features of the centre-vortex model. The connection between topological charge and singular points is also explored. This work highlights the useful role visualisations play in the exploration of the QCD vacuum.
description: 6 pages, 9 figures. In the proceedings of CHEP 2019 - 24rd International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4-8 November 2019
Realistic Equations of State for the Primeval Universe
Creators: name: Aldrovandi, R.
name: Cuzinatto, R. R.
name: Medeiros, L. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Early universe equations of state including realistic interactions between constituents are built up. Under certain reasonable assumptions, these equations are able to generate an inflationary regime prior to the nucleosynthesis period. The resulting accelerated expansion is intense enough to solve the flatness and horizon problems. In the cases of curvature parameter κequal to 0 or +1, the model is able to avoid the initial singularity and offers a natural explanation for why the universe is in expansion.
description: 32 pages, 5 figures. Citations added in this version. Accepted EPJC
Magnetic and structural properties of Ni-substituted magnetoelectric Co$_4$Nb$_2$O$_9$
Creators: name: Papi, Hadi
name: Favre, Virgile Yves
name: Ahmadvand, Hossein
name: Alaei, Mojtaba
name: Khondabi, Mohammad
name: Sheptyakov, Denis
name: Keller, Lukas
name: Kameli, Parviz
name: Zivkovic, Ivica
name: Rønnow, Henrik M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magnetic and structural properties of polycrystalline Co$_{4-x}$ Ni$_x$ Nb$_2$ O$_9$ (x=1,2) have been investigated by neutron powder diffraction, magnetization and heat capacity measurements, and density functional theory (DFT) calculations. For x=1, the compound crystallizes in the trigonal P$\bar{3}$c1 space group. Below T$_N$ = 31 K it develops a weakly non-collinear antiferromagnetig structure with magnetic moments in the ab-plane. The compound with x=2 has crystal structure of the orthorhombic Pbcn space group and shows a hard ferrimagnetic behavior below T$_C$ =47 K. For this compound a weakly non-collinear ferrimagnetic structure with two possible configurations in ab plane was derived from ND study. By calculating magnetic anisotropy energy via DFT, the ground-state magnetic configuration was determined for this compound. The heat capacity study in magnetic fields up to 140 kOe provide further information on the magnetic structure of the compounds.
description: Published in Physical Review B, 8 pages, 8 figures
Strong spectral evolution during the prompt emission of GRB 070616
Creators: name: Starling, R. L. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Swift has revealed features in GRB early light curves, such as steep decays and X-ray flares, whose properties are consistent with an internal origin though they are far from understood. The steep X-ray decay is often explained using the curvature effect; however a significant number of GRBs display strong spectral evolution during this phase, and a new mechanism must be invoked to explain this. Of particular interest are the longest duration GRBs in which the early emission can be studied in most detail. Here we present data for GRB 070616, in which the prompt emission shows a complex multipeaked structure, leading to one of the longest prompt emission durations ever recorded. We take advantage of extensive coverage of such a long burst by all Swift instruments. Combining data from Swift and Suzaku we study the evolution of the prompt emission spectrum, following the temporal variability of the peak energy and spectral slope.
description: 4 pages, 2 figures (Fig 1 in colour), contributed talk, submitted to the proceedings of Gamma Ray Bursts 2007, Santa Fe, New Mexico, November 5-9 2007
Kommentar zum Votum der EKD zum geordneten Miteinander bekenntnisverschiedener Kirchen
Creators: name: Hasselmann, Niels
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 51 Nr. 4 (2002): Ökumenische Rundschau, Band 51, Heft 4
Αξιολόγηση των ελληνικών άμεσων ξένων επενδύσεων στο εξωτερικό με τη μεθοδολογία των υποδειγμάτων έλξης:
Creators: name: Κουτσονικόλας, Κωνσταντίνος Στεφάνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Υποδείγματα έλξης
Ξένες επενδύσεις
FDI Greece
Gravity models

description: Επιδιώκοντας τον καθορισμό των τον καθορισμό των προσδιοριστικών παραγόντων για τις ελληνικές ξένες επενδύσεις διαπιστώνουμε πτυχές που ξεφεύγουν από τα θεωρητικά πλαίσια της νεοκλασικής προσέγγισης για το διεθνές εμπόριο. Η παγκοσμίως εδραιωμένη συμπεριφορά των επενδυτών είναι συχνά πιο περίπλοκη. Αρχικά, στην παρούσα εργασία, διερευνάται η σχέση αλληλεπίδρασης μεταξύ επενδύσεων και διεθνούς εμπορίου: είναι σχέση υποκατάστασης ή συμπληρωματικότητας; Προχωρώντας με την βιβλιογραφική επισκόπηση, αναζητούνται και άλλοι προσδιοριστικοί παράγοντες των ξένων άμεσων επενδύσεων (Ξ.A.Ε.), σύμφωνα με νεότερες προσεγγίσεις, καθώς και τι αποτελέσματα έχουν δώσει σχετικές εμπειρικές μελέτες; Στην συνέχεια, εφαρμόζοντας την εμπειρική μεθοδολογία των υποδειγμάτων έλξης γίνεται μια διερεύνηση της Ελληνικής περίπτωσης, με έμφαση στις επενδύσεις σε χώρες τηςανατολικής λεκάνης της Μεσογείου, των Βαλκανίων και της Μαύρης Θάλασσας. Μεταξύ των ευρημάτων, έχουμε την προτίμηση των Ελλήνων επενδυτών προς τις οικονομίες που ασκούν πολιτική προστατευτισμού στο διεθνές εμπόριο, οι συνθήκες οικονομικής ελευθερίας δεν φαίνεται να επηρεάζουν με στατιστικά σημαντικό τρόπο την προσέλκυση επενδύσεων.
description: The aim of this project is the definition of the Greek foreign direct investmen determinants in developing countries under the analysis of gravity models
A qualitative case study of senior centre planning practice : toward an integrated view of program planning
Creators: name: Hewson, Jennifer Ann Warren
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this study was to generate an understanding of the process of program planning in a senior centre. Of particular interest was the extent to which technical, contextual, and social-political dimensions of planning were represented in the planning practice of programmers. Indepth interviews were conducted with four programmers who were responsible for planning programs at one Lower Mainland, British Columbia senior centre from April 1996 to April 1997. Observations of programming meetings and documents pertaining to program planning supplemented interview data. This exploration revealed that all three dimensions of planning were evident in the programmers' practice. When planning programs, the programmers completed four technical stages: generating ideas, selecting ideas, developing programs, and organizing details. Daily planning activities revolved around these stages and their related tasks. The way in which programs were developed at this centre was also a highly contextualized process. The programmers were influenced by a variety of contextual factors internal and external to the centre which shaped the structure, process, timing, and organization of planning as well as the selection and development of programs. When examining planning as a social-political process of negotiation, it was evident that planning practice was characterized by power relationships, interests, and negotiation. While negotiating interests was one form of action in which the planners engaged, it was not the dominant form of planning activity. Planning practice at this centre was best depicted as a highly contextualized technical process which entailed information gathering, criteria-based decision making, negotiating interests, and recording program details. The way in which planning occurred at this centre implies that technical, contextual, and social-political dimensions are interrelated and that the interplay between the technical and social-political dimensions is influenced by contextual factors. While much of the planning literature has focused on a single dimension, this exploration of practice suggests that an integrated way of thinking about planning is needed which acknowledges varying degrees to which technical, contextual, and social-political dimensions may be emphasized depending on the planning environment.
Resolution of the Directors of the Rainbow Ranche Limited, January 4, 1945
Creators: name: Rainbow Ranche
Publisher: name: The University of British Columbia
Year: 2017

description: 2 copies of the resolution of the directors of the Rainbow Ranche Limited, January 4, 1945, signed by Mr. and Mrs. McAllister, Mr. and Mrs. Goldie; other copy signed by R.S. Dormer.
Limits to compression with cascaded quadratic soliton compressors
Creators: name: Bache, M.
name: Bang, O.
name: Krolikowski, W.
name: Moses, J.
name: Wise, F. W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study cascaded quadratic soliton compressors and address the physical mechanisms that limit the compression. A nonlocal model is derived, and the nonlocal response is shown to have an additional oscillatory component in the nonstationary regime when the group-velocity mismatch (GVM) is strong. This inhibits efficient compression. Raman-like perturbations from the cascaded nonlinearity, competing cubic nonlinearities, higher-order dispersion, and soliton energy may also limit compression, and through realistic numerical simulations we point out when each factor becomes important. We find that it is theoretically possible to reach the single-cycle regime by compressing high-energy fs pulses for wavelengths $λ=1.0-1.3 μ{\rm m}$ in a $β$-barium-borate crystal, and it requires that the system is in the stationary regime, where the phase mismatch is large enough to overcome the detrimental GVM effects. However, the simulations show that reaching single-cycle duration is ultimately inhibited by competing cubic nonlinearities as well as dispersive waves, that only show up when taking higher-order dispersion into account.
description: 16 pages, 5 figures, submitted to Optics Express