cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Η εξέλιξη του τύπου και της εικονογραφίας του βημόθυρου από τον 10ο έως και τον 18ο αιώνα
Creators: name: Παπαδημητρίου, Παρασκευή Χ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Ξυλογλυπτική
Εργαστήρια
Ζωγράφοι
Wood-carving
Workshops

description: Το βημόθυρο, αναπόσπαστο τμήμα του τέμπλου, είναι η θύρα εισόδου που οδηγεί, στο χώρο του ιερού βήματος, στη Βασιλεία του Θεού. Η απεικόνιση του Ευαγγελισμού σ'αυτό σχετίζεται με την έννοια της Ενσάρκωσης του Χριστού, με την οποία άνοιξε για τον πιστό η θύρα της ουράνιας βασιλείας. Εκτός από τον Ευαγγελισμό στα βημόθυρα εικονίζονται και όσοι σχετίζονται με το θέμα της Ενσάρκωσης, όπως προφήτες, ευαγγελιστές, απόστολοι, άγιοι, ιεράρχες. Τα βημόθυρα με βάση τον τύπο, τον ξυλόγλυπτο διάκοσμο και τη διάταξη της εικονογραφίας τους, κατατάσσονται σε πέντε τύπους. Στον πρώτο τύπο(τύπος Α') εντάσσονται βημόθυρα ενθετικής τεχνικής και ένα χαραγμένο σε χαλκό, ενώ στον δεύτερο τύπο(τύπο Β') τα βημόθυρα τα οποία είναι ξυλόγλυπτα και δεν φέρουν στην επιφάνειά τους γραπτές παραστάσεις. Στον τρίτο τύπο εντάσσονται τα βημόθυρα που φέρουν στην επιφάνειά τους μόνο γραπτά θέματα, ενώ στον τέταρτο τύπο(τύπος Δ') όσα φέρουν ξυλόγλυπτη διακόσμηση μόνο στην αποληξή τους. Τέλος, στον πέμπτο τύπο(τύπος Ε') εντάσσονται τα γραπτά βημόθυρα με ξυλόγλυπτη διακόσμηση, Κύριο χαρακτηριστικό τους είναι ότι περιορίζεται η γραπτή επιφάνεια όπου αναπτύσσονται οι παραστάσεις και κυριαρχούν τα ξυλόγλυπτα μοτίβα, όπως φίδια, δράκοι, πουλιά, άγγελοι, ανθική διακόσμηση κ.α. Κατά τον 15ο με 18ο αιώνα υπάρχουν σχολές ξυλογλυπτικής στην Αχρίδα, στο Prilep-Slepce, στο Prizren, στο Pec σε περιοχές της Βουλγαρίας, στο Αγιο Ορος και κυρίως στην Ηπειρο
description: The bema door, indispensable part of the templon, is the entrance gate that leads to the area of the Holy bema, to the Kindom of God. The depiction of the Annunciation on the Bema doors, is related to the notion of the Incarnation of Jesus Christ, by which he opened the gate of the Kingdom of Heaven to the faithful. Except for the Annunciation on the Bema doors are also depicted those who are related to the issue of Incarnation, such as prophets, evangelists, apostles, saints etc. The Bema door according to the type, the wood-carving decoration and the layout of their iconography are classified into five types. In the first type are placed Bema doors of inlaying technique and one that is engraved on copper, while in the second type the Bema doors that are woodcut and do not bear on their bear on their surface only painted themes, while in the fourth type are placed painted bema doors that bear wood-carving decoration only on their edge. Finally, in the fifth type are placed the painted Bema doors with wood-carving decoration. Their main characteristic is that the painted surface is confined where the reprecentations are developed amd woodcut patterns dominate, such as snakes, dragons, birds, angels, floral decoration, etc.During the 15th up to 18th century there are wood-carving schools in Ohrid, in Prilep-Slepce, in Prizren, in Pec, in areas of Bulgaria in Holy mountain Athos and mainly in Epirus
Gamma-ray burst host galaxies and the link to star-formation
Creators: name: Fynbo, J. P. U.
name: Hjorth, J.
name: Malesani, D.
name: Sollerman, J.
name: Watson, D.
name: Jakobsson, P
name: Gorosabel, J.
name: Jaunsen, A. O.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We briefly review the current status of the study of long-duration gamma-ray burst (GRB) host galaxies. GRB host galaxies are mainly interesting to study for two reasons: 1) they may help us understand where and when massive stars were formed throughout cosmic history, and 2) the properties of host galaxies and the localisation within the hosts where GRBs are formed may give essential clues to the precise nature of the progenitors. The main current problem is to understand to what degree GRBs are biased tracers of star formation. If GRBs are only formed by low-metallicity stars, then their host galaxies will not give a representative view of where stars are formed in the Universe (at least not a low redshifts). On the other hand, if there is no dependency on metallicity then the nature of the host galaxies leads to the perhaps surprising conclusion that most stars are formed in dwarf galaxies. In order to resolve this issue and to fully exploit the potential of GRBs as probes of star-forming galaxies throughout the observable universe it is mandatory that a complete sample of bursts with redshifts and host galaxy detections is built.
description: 9 pages, 3 figures. To appear in the proceedings of the Eleventh Marcel Grossmann Meeting on General Relativity, eds. H. Kleinert, R. T. Jantzen & R. Ruffini, World Scientific, Singapore, 2007
Το ευρωπαϊκό ένταλμα σύλληψης και η αρχή του διττού αξιόποινου
Creators: name: Κυριτσάκη, Ιωάννα Α.
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Τρίτος πυλώνας
Εναρμόνιση ποινικού δικαίου
Harmonization of criminal law
Judical cooperation

description: Η παρούσα διατριβή έχει ως αντικείμενο τη συστηματική ανάλυση και κριτική αποτίμηση των ρυθμίσεων της απόφασης πλαίσιο για το ευρωπαϊκό ένταλμα σύλληψης, που σχετίζονται άμεσα με την παραδοσιακή αρχή του διττού αξιοποίνου. Καθώς το ευρωπαϊκό νομοθέτημα επιφέρει μερική κατάργηση της εν λόγω εγγυητικής αρχής, εξετάζονται τα δογματικά ερείσματα αυτού του νομοθετικού εγχειρήματος και προτείνονται ερμηνευτικές προσεγγίσεις για την περιφρούρηση των δικαιωμάτων του εκζητουμένου, μέσω της εναρμόνισης των παρεχόμενων ατομικών εγγυήσεων, αλλά και της σύγκλισης της ποινικής ύλης των κρατών μελών της Ε.Ε.
description: The purpose of this thesis is to examine the provisions of the framework decision on the european arrest warrant,which are closely connected to the traditional principle of double criminality. Emphasis is given on the attempt of the European legislator to partly abolish the double conditionality requirement and on the need to ensure the effective protection of the rights of the requested person in the context of this new method of judicial assistance
On the $Z_2$ classification of Quantum Spin Hall Models
Creators: name: Roy, Rahul
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose an alternative formulation of the $Z_2$ topological index for quantum spin Hall systems and band insulators when time reversal invariance is not broken. The index is expressed in terms of the Chern numbers of the bands of the model, and a connection with the number of pairs of robust edge states is thus established. The alternative index is easy to compute in most cases of interest. We also discuss connections with the recently proposed spin Chern number for quantum spin Hall models.
description: Presentation changed to improve clarity, some technical aspects of the topological arguments including material previously cited as unpublished notes have now been added as an appendix
Hysteresis from dynamically pinned sliding states
Creators: name: Vanossi, Andrea
name: Santoro, Giuseppe E.
name: Manini, Nicola
name: Cesaratto, Marco
name: Tosatti, Erio
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report a surprising hysteretic behavior in the dynamics of a simple one-dimensional nonlinear model inspired by the tribological problem of two sliding surfaces with a thin solid lubricant layer in between. In particular, we consider the frictional dynamics of a harmonic chain confined between two rigid incommensurate substrates which slide with a fixed relative velocity. This system was previously found, by explicit solution of the equations of motion, to possess plateaus in parameter space exhibiting a remarkable quantization of the chain center-of-mass velocity (dynamic pinning) solely determined by the interface incommensurability. Starting now from this quantized sliding state, in the underdamped regime of motion and in analogy to what ordinarily happens for static friction, the dynamics exhibits a large hysteresis under the action of an additional external driving force F_ext. A critical threshold value F_c of the adiabatically applied force F_ext is required in order to alter the robust dynamics of the plateau attractor. When the applied force is decreased and removed, the system can jump to intermediate sliding regimes (a sort of ``dynamic'' stick-slip motion) and eventually returns to the quantized sliding state at a much lower value of F_ext. On the contrary no hysteretic behavior is observed as a function of the external driving velocity.
description: 12 pages, 5 figures, ECOSS 2006
Continuous evolution of electromagnetic field in heavy-ion collisions
Creators: name: Stewart, Evan
name: Tuchin, Kirill
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In heavy-ion collisions the electromagnetic field exists before the hot nuclear matter emergence. Requiring the field continuity we compute it in the central rapidity region by taking into account the electromagnetic response of the Quark Gluon Plasma. We show that the electromagnetic field is nearly time-independent from about 1~fm/c after the collision until the freezeout.
description: 11 pages, 4 figures
DC Signature of snap-through bi-stability in carbon nanotube resonators
Creators: name: Rechnitz, Sharon
name: Tabachnik, Tal
name: Shlafman, Shlomo
name: Shlafman, Michael
name: Yaish, Yuval E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Bi-stable arched beams exhibiting Euler-Bernoulli snap-through buckling are vastly used as electronic devices in various applications, such as memory devices, energy harvesters, sensors, and actuators. Recently, we reported the realization of the smallest bi-stable resonator to date, in the form of a buckled suspended carbon nanotube (CNT), which exhibits a unique three-dimensional snap-through transition and an extremely large change in frequency as a result. In this article, we address a unique characteristic of these devices, in which a significant change in the DC conductance is also observed at the mechanical snap-through transition. After verifying that the change in the CNT tension due to the "jump" cannot account for the conductance difference measured, we attribute the conductance "jump" to the change in capacitance as a result of the snap-through buckling. However, we show that quantitative analysis of this phenomenon is not at all trivial, and is enabled only due to our ability to predict the exact CNT shape before and after the transition. Understanding this mechanism enables a fast characterization of fabricated devices and improves our understanding of their behavior, key in developing this technology further and better design. As an example, we show how the hysteretic trait of this phenomenon is indicative of the ability to achieve static latching, useful for RF switches, bi-stable relays, and memory devices.
Additional file 1 of Translational framework for implementation evaluation and research: a normalisation process theory coding manual for qualitative research and instrument development
Creators: name: May, Carl R.
name: Albers, Bianca
name: Bracher, Mike
name: Finch, Tracy L.
name: Gilbert, Anthony
name: Girling, Melissa
name: Greenwood, Kathryn
name: MacFarlane, Anne
name: Mair, Frances S.
name: May, Christine M.
name: Murray, Elizabeth
name: Potthoff, Sebastian
name: Rapley, Tim
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: Computational Biology

description: Additional file 1.
Dynamics of a metastable state nonlinearly coupled to a heat bath driven by an external noise
Creators: name: Chaudhuri, Jyotipratim Ray
name: Barik, Debashis
name: Banik, Suman Kumar
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Based on a system-reservoir model, where the system is nonlinearly coupled to a heat bath and the heat bath is modulated by an external stationary Gaussian noise, we derive the generalized Langevin equation with space dependent friction and multiplicative noise and construct the corresponding Fokker-Planck equation, valid for short correlation time, with space dependent diffusion coefficient to study the escape rate from a metastable state in the moderate to large damping regime. By considering the dynamics in a model cubic potential we analyze the result numerically which are in good agreement with the theoretical prediction. It has been shown numerically that the enhancement of rate is possible by properly tuning the correlation time of the external noise.
description: 13 pages, 5 figures, Revtex4. To appear in Physical Review E
d+Au Collisions at STAR
Creators: name: Gagliardi, C. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: STAR has measured forward pi^0 production in p+p and d+Au collisions at sqrt{s_{NN}}=200 GeV. The p+p yield generally agrees with NLO pQCD calculations. The d+Au yield is strongly suppressed at =4.0, well below shadowing expectations. Exploratory measurements of azimuthal correlations between forward pi^0 and mid-rapidity charged hadrons show a recoil peak in p+p that is suppressed in d+Au at low pion energy. These observations are qualitatively consistent with a saturation picture of the low-x gluon structure of heavy nuclei. Future measurements to elucidate the dynamics underlying these observations are also described.
description: 4 pages, 3 figures. To appear in proceedings of DIS2006
High-fidelity geometric quantum gates with short paths on superconducting circuits
Creators: name: Li, Sai
name: Xue, Jing
name: Chen, Tao
name: Xue, Zheng-Yuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Geometric phases are robust against certain types of local noises, and thus provide a promising way towards high-fidelity quantum gates. However, comparing with the dynamical ones, previous implementations of nonadiabatic geometric quantum gates usually require longer evolution time, due to the needed longer evolution path. Here, we propose a scheme to realize nonadiabatic geometric quantum gates with short paths based on simple pulse control techniques, instead of deliberated pulse control in previous investigations, which can thus further suppress the influence from the environment induced noises. Specifically, we illustrate the idea on a superconducting quantum circuit, which is one of the most promising platforms for realizing practical quantum computer. As the current scheme shortens the geometric evolution path, we can obtain ultra-high gate fidelity, especially for the two-qubit gate case, as verified by our numerical simulation. Therefore, our protocol suggests a promising way towards high-fidelity and roust quantum computation on a solid-state quantum system.
description: 7 pages, 5 figures, accepted by Advanced Quantum Technologies
Πρότυπο αξιολόγησης της εγκυρότητας δομής συστημάτων πιστοποίησης γλωσσομάθειας: εφαρμογή του στο κρατικό πιστοποιητικό γλωσσομάθειας του επιπέδου Β2 της αγγλικής γλώσσας
Creators: name: Τσομπάνογλου, Μαρία Σ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Αξιολόγηση γλωσσικών τεστ
Εγκυρότητα γλωσσικών τεστ
Language test validation
Language test validity

description: Η παρούσα διατριβή αποτελεί μία αξιολογική έρευνα, η οποία έχει ως στόχο την αξιολόγηση του Κρατικού πιστοποιητικού Γλωσσομάθειας επιπέδου Β2 της αγγλικής γλώσσας. ,ε βάσηξ ένα σύγχρονο πλαίσιο ελέγχου της εγκυρότητας δομής μέσων αξιολόγησης. Σύμφωνα με το συγκεκριμένο αξιολογικό πλαίσιο, η εγκυρότητα δομής αποτελεί μία "συγκεντρωτική" έννοια, η οποία περικλείει τα υπόλοιπα είδη εγκυρότητας. Τα διαφορετικά είδη μαρτυρίας, τα οποία συγκεντρώθηκαν μέσω ποιοτικών, αλλά κυρίως ποσοτικών μεθόδων, μας οδήγησαν στην επιβεβαίωση της συνολικής εγκυρότητας του τέστ, καθώς και σε χρήσιμα συμπεράσματα για τη φύση της γλωσσικής επάρκειας, η οποία αξιολογείται από αυτό
description: The present study aims at the validation of the Greek State Certificate of English Language Proficiency(B2 level)(the test is part of a Greek mutli-level standardized suite of national language examinations, known as "Kratiko Pistopiitiko Glossomathias" or KPG), on the basis of a modern validation framework. According to this framework, the concept of construct validity is seen as a unitary concept which encompasses all the different aspects of validity. The different kinds of evidence, which were collected through a series of qualitative, but mostly quantitative methods, led us not only to the confirmation of the validity argument of the test in question, but also to useful findings regarding the nature of the language proficiency which is assessed by it
Improved Calculation of the Primordial Gravitational Wave Spectrum in the Standard Model
Creators: name: Watanabe, Yuki
name: Komatsu, Eiichiro
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that the energy density spectrum of the primordial gravitational waves has characteristic features due to the successive changes in the relativistic degrees of freedom during the radiation era. These changes make the evolution of radiation energy density deviate from the conventional adiabatic evolution, ρ_r~ a^{-4}, and thus cause the expansion rate of the universe to change suddenly at each transition which, in turn, modifies the spectrum of primordial gravitational waves. We take into account all the particles in the Standard Model of elementary particles. In addition, free-streaming of neutrinos damps the amplitude of gravitational waves, leaving characteristic features in the energy density spectrum. Our calculations are solely based on the standard model of cosmology and particle physics, and therefore these features must exist. Our calculations significantly improve the previous ones which ignored these effects and predicted a smooth, featureless spectrum.
description: 25 papes, 11 figures, submitted to PRD
Wetting transitions in polydisperse fluids
Creators: name: Buzzacchi, Matteo
name: Wilding, Nigel B.
name: Sollich, Peter
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The properties of the coexisting bulk gas and liquid phases of a polydisperse fluid depend not only on the prevailing temperature, but also on the overall parent density. As a result, a polydisperse fluid near a wall will exhibit density-driven wetting transitions inside the coexistence region. We propose a likely topology for the wetting phase diagram, which we test using Monte Carlo simulations of a model polydisperse fluid at an attractive wall, tracing the wetting line inside the cloud curve and identifying the relationship to prewetting.
description: 4 Pages, 4 figures. Accepted for publication in Physical Review Letters
Sleep complaints in former and current night shift workers: findings from two cross-sectional studies in Austria
Creators: name: Weitzer, Jakob
name: Santonja, Isabel
name: Degenfellner, Jürgen
name: Yang, Lin
name: Jordakieva, Galateja
name: Crevenna, Richard
name: Seidel, Stefan
name: Klösch, Gerhard
name: Schernhammer, Eva
name: Papantoniou, Kyriaki
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Mental Health

description: Sleep impairment is highly prevalent in night shift workers, but evidence on the association of former night shift work (NSW) and its metrics (duration and frequency) in relation to sleep complaints is lacking. We evaluated the association of former and current NSW with chronic insomnia or circadian rhythm sleep disorder in a sample of the general worker (GW) population and in hospital workers (HW) in Austria. Information on sleep, NSW history, sociodemographic, and lifestyle factors was collected through an online cross-sectional survey in a representative sample of GW (N= 1,004) and a sample of HW (N= 799) between 2017 and 2019. Multi-variable adjusted logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for various measures of sleep (including chronic insomnia, daytime sleepiness, sleep duration, napping habits) and doctor-diagnosed chronic insomnia across NSW exposure (never night shift work; ever; ever/former; ever/current) and related metrics (cumulative duration, average frequency), compared to never NSW. Effect modification by chronotype and daytime napping was investigated. Former NSW was associated with higher odds of chronic insomnia in both samples (GW: OR = 2.28, 95% CI = 1.07–4.83; HW: OR = 1.17, 95% CI = 0.60–2.27). Chronic insomnia odds tended to increase among current night shift workers (HW: OR = 1.50, 95% CI = 0.79–2.83), compared to day workers. Higher NSW frequency (shifts/month) was associated with higher chronic insomnia odds in former night shift workers in both samples (GW: ORper shift/month = 1.06, 95% CI = 1.00–1.12; HW: ORper shift/month = 1.12, 95% CI = 1.00–1.25). Former NSW was also associated with increased daytime sleepiness among GW (OR = 2.26, 95% CI 1.28–3.99). Associations were more pronounced among early chronotypes and participants who reported no daytime naps. Our results suggest that NSW is associated with chronic insomnia even in the years after cessation of involvement in working it.
Checking transcription of story about the man from Tish-Tang and his Chinese friend
Creators: name: Parker, Verdena
name: Lee-Wynant, Tyler
name: Spence, Justin
name: Yu, Xuying Yuki
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: hup

description: Audio file VP-100319-04: Checking transcription of file VP-150816-04 (story about the man from Tish-Tang and his Chinese friend).
Seismic induced flow deformation and remediation study of Sardis Dam
Creators: name: Wu, Guoxi
Publisher: name: University of British Columbia
Year: 2008

description: Previous investigations of the seismic stability of Sardis Dam indicated that the entire central silt core and a weak clayey silt layer in the dam foundation are susceptible to liquefaction which could result in large losses of shear strengths in these liquefied soils. The post-liquefaction behaviour of Sardis Dam was evaluated using new flow deformation analysis technique which was developed by Finn and Yogendrakumar (1989). The analysis showed the potential for large displacements including a great loss of freeboard during the design earthquake. A strategy of designing remedial measures to limit deformations to a tolerable amount was adopted over the conventional factor of safety approach. Various levels of remediations were investigated using TARA-3FL. The remediation procedure adopted for field trials was anchoring the upstream slope to the foundation using rows of rectangular prestressed reinforced concrete piles. Estimating post-liquefaction deformations for this remediation scheme posed challenging problems in analysis.
Rodentia Bowdich 1821
Creators: name: Jo, Yeong-Seok
name: Baccus, John T.
name: Koprowski, John L.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia

description: ORDER RODENTIA Bowdich, 1821   Four native families and one invasive Family Echimyidae, representing 21 species and 16 genera, occur in Korea. We regard the report of Petaurista leucogenys (Sciuridae) as unlikely because it is based on an imported skin from Japan (Jones & Johnson 1965). The possible presence of Apodemus sylvaticus (Muridae) is a misidentification of A. peninsulae (Han 2004c). Ellerman and Morrison-Scott (1951) included Korea within the distribution of Allactaga sibirica (Dipodidae). However, the record for Korea was based on specimens from Jehol, China (Jones & Johnson, 1965; Corbet 1978).
description: Published as part of Jo, Yeong-Seok, Baccus, John T. & Koprowski, John L., 2018, Mammals of Korea: a review of their taxonomy, distribution and conservation status, pp. 1-216 in Zootaxa 4522 (1) on page 162, DOI: 10.11646/zootaxa.4522.1.1, http://zenodo.org/record/2610198
Space Propagation of Instabilities in Zakharov Equations
Creators: name: Metivier, Guy
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35 Q 60, 78 A

description: In this paper we study an initial boundary value problem for Zakharov's equations, describing the space propagation of a laser beam entering in a plasma. We prove a strong instability result and prove that the mathematical problem is ill-posed in Sobolev spaces. We also show that it is well posed in spaces of analytic functions. Several consequences for the physical consistency of the model are discussed.
description: 39 p
Nested group communication for wide-area networks
Creators: name: Liang, Luping
Publisher: name: University of British Columbia
Year: 2008

description: Group communication concerns sending messages to receiver groups in distributed systems. A process group comprises a set of processes and encapsulates their internal interactions, thereby simplifying the interactions between user programs and groups of receiving processes. Although the basic idea was proposed a few years ago, few systems or applications take advantage of it due to a lack of a comprehensive understanding of the requirements of group communication with respect to different classes of applications, and a lack of operating system support to meet those requirements. This dissertation consists of two parts that address these deficiencies. The first part provides a comprehensive understanding of process groups by examining their potential applications, and the requirements to the system support expected by these applications. Groups are classified based on their structure and behavior. Also, a uniform treatment of grouping transparency is presented. The second part of this dissertation focuses on a particularly important aspect of group communication — group naming in an internet. For the purposes of maintaining subnet autonomy and reducing traffic on internet links, a nested group model is proposed to allow internet groups to contain other groups as members. By formalizing this nested group model using a name graph, two problems in group name resolutions are identified: resolution loops and resolution duplications. After analyzing existing methods (centralized vs. distributed dynamic methods) and identifying their deficiencies, we propose a novel distributed static method. Instead of detecting loops at the time of name resolution, the static method transforms the system view of the name graph into a special structure which is updated whenever there is a change in group membership. To guarantee correctness, the name graph transformation preserves the property that name resolutions based on the system's view of the name graph are consistent with respect to the users' view. Based on the assumption that name graph updates occur much less frequently than name resolutions, static method trades a higher overhead of name graph updates for a better performance of name resolution to gain an improved over all group message transport performance. In this part of the dissertation, a static shadow tree algorithm is designed and analyzed. The correctness arguments for the algorithm are provided and aspects such as concurrency control and failure handling in name graph updates are investigated as well. A prototype implementation of the algorithm is conducted as an existence proof to demonstrate implementation feasibility and to test the behavior of the algorithm.
Νέα τεχνολογικά εργαλεία στη σύγχρονη δημοσιογραφία: μελέτη της χρήσης τους από τους έλληνες δημοσιογράφους σε συνδυασμό με τη χρήση του διαδικτύου ως ΜΜΕ
Creators: name: Ματσιώλα, Μαρία Γ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Διαδίκτυο
Μέσα μαζικής ενημέρωσης
Internet
Mass media

description: Το αντικείμενο της παρούσας διδακτορικής διατριβής είναι η μελέτη του χώρου των ΜΜΕ στη σύγχρονη Ελλάδα υπό το πρίσμα των νέων τεχνολογιών. Αναζητήθηκαν: α)τα χαρακτηριστικά του Ελληνικού κοινού που χρησιμοποιεί όλα τα ΜΜΕ αλλά ειδικότερα το διαδίκτυο ως μέσο ενημέρωσης και β)το επίπεδο χρήσης και οι παράγοντες που οδηγούν στη χρήση των νέων τεχνολογικών εργαλείων από τους Έλληνες δημοσιογράφους κατά την άσκηση του επαγγέλματός τους. Ερευνήθηκε η σχέση των δύο προαναφερθέντων ζητημάτων έχοντας ως στόχο τη βέλτιστη απεικόνιση του τομέα της ενημέρωσης. Εστιάσαμε περισσότερο το ενδιαφέρον μας στους Έλληνες δημοσιογράφους καθώς πιστεύουμε ότι η ορθή χρήση των τεχνολογικών καινοτομιών στο επάγγελμά τους μπορεί να προσφέρει καλύτερης ποιότητας και περισσότερο εμπλουτισμένη ενημέρωση στο κοινό και στους ίδιους περισσότερες διευκολύνσεις καθώς και δυνατότητα μεγαλύτερης εμβάθυνσης στις έρευνες που διενεργούν κατά την άσκηση της εργασίας τους. Τα ζητήματα της διατριβής διερευνώνται στον τεχνολογικό και κοινωνικό τομέα μέσα από επισταμένη θεωρητική αναζήτηση και πρωτογενείς έρευνες. Ειδικότερα, εξετάζουμε το ρόλο της τεχνολογίας μέσα στο επαγγελματικό και κοινωνικό περιβάλλον της δημοσιογραφίας και όχι ως ένα αυτόνομο πεδίο. Η κεντρική μας υπόθεση εντοπίζεται στην αντίληψη των Ελλήνων δημοσιογράφων σχετικά με τη χρησιμότητα και την αναγκαιότητα των νέων τεχνολογικών εργαλείων. Επιπρόσθετα αναζητούμε τους παράγοντες που επιδρούν στη χρήση της τεχνολογίας κατά την άσκηση του δημοσιογραφικού επαγγέλματος. Συγκεκριμένα, ελέγχουμε πόσο επηρρεάζει την χρήση ή όχι της σύγχρονης τεχνολογίας το ΜΜΕ εργασίας, το δημοσιογραφικό αντικείμενο με το οποίο απασχολούνται οι δημοσιογράφοι και το επίπεδο και το είδος των σπουδών τους
description: The subject of the doctorate thesis is the study of mass media in contemporary Greece through the aspect of new technologies. We seeked a)the characteristics of the Greek audience that use all mass media and especially the internet, and b)the level of the utilization and the factors that leed to the utilization of new technology tools by the Gree journalists. The conjunction of these two issues was researched as our aim was to get the best depiction of the information sector. The issues of the thesis were investigated into the technological and social field using thorough theoretical search and original surveys. We focused our interst in Greek journalists as we believe that the right utilization of technology novelties can offer information of better quality to the audience and the ability to conduct deeper researches to themselves
Square Root Bundle Adjustment for Large-Scale Reconstruction
Creators: name: Demmel, Nikolaus
name: Sommer, Christiane
name: Cremers, Daniel
name: Usenko, Vladyslav
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We propose a new formulation for the bundle adjustment problem which relies on nullspace marginalization of landmark variables by QR decomposition. Our approach, which we call square root bundle adjustment, is algebraically equivalent to the commonly used Schur complement trick, improves the numeric stability of computations, and allows for solving large-scale bundle adjustment problems with single-precision floating-point numbers. We show in real-world experiments with the BAL datasets that even in single precision the proposed solver achieves on average equally accurate solutions compared to Schur complement solvers using double precision. It runs significantly faster, but can require larger amounts of memory on dense problems. The proposed formulation relies on simple linear algebra operations and opens the way for efficient implementations of bundle adjustment on hardware platforms optimized for single-precision linear algebra processing.
description: Accepted to CVPR 2021. Updated version corresponding to CVPR camera-ready. Formatting changes and minor tweaks to fit page requirements
Comparison between algebraic and topological K-theory of locally convex algebras
Creators: name: Cortiñas, Guillermo
name: Thom, Andreas
Publisher: name: arXiv
Year: 2006
Subjects: subject: K-Theory and Homology (math.KT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 18G, 19K, 46H, 46L80, 46M, 58B34

description: This paper is concerned with the algebraic K-theory of locally convex algebras stabilized by operator ideals, and its comparison with topological K-theory. We show that the obstruction for the comparison map between algebraic and topological K-theory to be an isomorphism is (absolute) algebraic cyclic homology and prove the existence of an 6-term exact sequence. We show that cyclic homology vanishes in the case when J is the ideal of compact operators and L is a Frechet algebra with bounded app. unit. This proves the generalized version of Karoubi's conjecture due to Mariusz Wodzicki and announced in his paper "Algebraic K-theory and functional analysis", First European Congress of Mathematics, Vol. II (Paris, 1992), 485--496, Progr. Math., 120, Birkhäuser, Basel, 1994. We also consider stabilization with respect to a wider class of operator ideals, called sub-harmonic. We study the algebraic K-theory of the tensor product of a sub-harmonic ideal with an arbitrary complex algebra and prove that the obstruction for the periodicity of algebraic K-theory is again cyclic homology. The main technical tools we use are the diffeotopy invariance theorem of Cuntz and the second author (which we generalize), and the excision theorem for infinitesimal K-theory, due to the first author.
description: Final version, to appear in Advances in Mathematics
Οι μεταβολές της ροπής, των μηχανικών ιδιοτήτων και της νευρομυϊκής λειτουργίας των μυών της ποδοκνημικής άρθρωσης στη διάρκεια μέγιστης και υπομέγιστης κόπωσης και αποκατάστασης σε προεφηβεία, αγόρια και ενήλικες άντρες
Creators: name: Χατζηκωτούλας, Κωνσταντίνος Ν.
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Αποκατάσταση
Προκλητή διέγερση
Μ-κύμα
Ηλεκτρομυογράφημα
Twitch potentiation
M-wave
Electromyogram

description: Η μυϊκή κόπωση αναφέρεται στην ικανότητα ενός μυός ή μιας ομάδας μυών, να διατηρεί, ή να επαναλαμβάνει συστολές χωρίς κάματο. Πολλοί ερευνητές στο παρελθόν, έχουν αναφέρει ότι φαινόμενα κόπωσης μπορούν να εμφανιστούν σε διάφορες περιοχές του νευρικού και μυϊκού συστήματος που συμμετέχουν στην παραγωγή μιας κίνησης. Ωστόσο, δεν έχουν επαρκώς μελετηθεί οι μηχανισμοί σχετικά με την επίδραση της ηλικίας στις μεταβολές που συμβαίνουν στη λειτουργία του νευρικού συστήματος κατά την κόπωση. Ο βασικός σκοπός της έρευνας ήταν η διερεύνηση των μηχανισμών του νευρομυϊκού συστήματος, που προκαλούν την κόπωση στους ενήλικες συγκριτικά με τα παιδιά, τόσο μετά από μέγιστο όσο και μετά από υπομέγιστο πρωτόκολλο κόπωσης
description: Muscular fatigue is often defined as the reduction in force generating capacity of the neuromuscular system that occurs during sustained activity. Previous studies reported that literally each step of event in muscle contraction could be a site for fatigue. Nevertheless, the resultant observations are conflicting, in regard to age and sex effects of alterations in neuromuscular system during fatigue. The main purpose of this study was to examine to what extend central and peripheral mechanisms explain the fatigue differences between adults and prepubertal boys after maximal and submaximal sustained fatigue test
Additional file 1 of Adherence to the OARSI recommendations for designing, conducting, and reporting of clinical trials in knee osteoarthritis: a targeted literature review
Creators: name: Hummer, Charles D.
name: Huang, Yili
name: Sheehan, Brendan
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Search strategy for CENTRAL via OvidSP.
B(E1) Strengths from Coulomb Excitation of 11Be
Creators: name: Summers, N. C.
name: Pain, S. D.
name: Orr, N. A.
name: Catford, W. N.
name: Angelique, J. C.
name: Ashwood, N. I.
name: Bouchat, V.
name: Clarke, N. M.
name: Curtis, N.
name: Freer, M.
name: Fulton, B. R.
name: Hanappe, F.
name: Labiche, M.
name: Lecouey, J. L.
name: Lemmon, R. C.
name: Mahboub, D.
name: Ninane, A.
name: Normand, G.
name: Nunes, F. M.
name: Soic, N.
name: Stuttge, L.
name: Timis, C. N.
name: Thompson, I. J.
name: Winfield, J. S.
name: Ziman, V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The $B$(E1;$1/2^+\to1/2^-$) strength for $^{11}$Be has been extracted from intermediate energy Coulomb excitation measurements, over a range of beam energies using a new reaction model, the extended continuum discretized coupled channels (XCDCC) method. In addition, a measurement of the excitation cross section for $^{11}$Be+$^{208}$Pb at 38.6 MeV/nucleon is reported. The $B$(E1) strength of 0.105(12) e$^2$fm$^2$ derived from this measurement is consistent with those made previously at 60 and 64 MeV/nucleon, i n contrast to an anomalously low result obtained at 43 MeV/nucleon. By coupling a multi-configuration description of the projectile structure with realistic reaction theory, the XCDCC model provides for the first time a fully quantum mechanical description of Coulomb excitation. The XCDCC calculations reveal that the excitation process involves significant contributions from nuclear, continuum, and higher-order effects. An analysis of the present and two earlier intermediate energy measurements yields a combined B(E1) strength of 0.105(7) e$^2$fm$^2$. This value is in good agreement with the value deduced independently from the lifetime of the $1/2^-$ state in $^{11}$Be, and has a comparable p recision.
description: 5 pages, 2 figures, accepted for publication in Phys. Lett. B
Η ελληνιστική επιρροή στη σκέψη του εκκλησιαστή
Creators: name: Παζάρσκη, Μαρία Ι.
Publisher: name: Aristotle University of Thessaloniki
Year: 2006
Subjects: Ελληνιστική εποχή
Ιουδαϊσμός
Σοφία της εγγύς Ανατολής
Σοφία της Αιγύπτου
Ιουδαϊκή σοφία
Hellenistic era
Judaism
Pleasures of the senses
Oriental wisdom literatur

description: Η παρούσα εργασία αποτελείται από τρία κεφάλαια. Το πρώτο κεφάλαιο αναφέρεται στα γενικά χαρακτηριστικά της ελληνιστικής περιόδου, στα κοινωνικοοικονομιά δεδομένα του άμεσου ιουδαϊκού περιβάλλοντος του Εκκλησιαστή και στις εξελίξεις που αυτά προκάλεσαν στην ιουδαϊκή θρησκεία. Στο δεύτερο κεφάλαιο γίνεται λόγος για τη σχέση της σκέψης του Εκκλησιαστή με κάποια σοφιολογικά κείμενα της εγγύς Ανατολής και της Αιγύπτου. Στο τρίτο κεφάλαιο τονίζεται η ελληνιστική επιρροή στη σκέψη του Εκκλησιαστή, η σκεπτικιστική στάση του απέναντι στην ιουδαϊκή παραδοσιακή σοφία και η σπουδαιότητα του ρόλου του στην εξέλιξη, της ιουδαϊκής σοφιολογικής σκέψης
description: This thesis includes three chapters. The first of them has to do with the influence of Judaism from the spirit of the hellenistic era during the age Qoeleth lives in. The second chapter concerns the relation Qoeleth's with the oriental wisdom literatur. The third chapter urged the hellenistic influence and the indipendance Qoeleth's thought from the greek thought, the communication with got through the pleasures of the senses too. The cardinal conclution in this thesis is, the Qoeleth's thought stands between the hellenism and judaism and the main reason of the hellenistic influence of his thought is his controversy with fundamental principles of the judaistic wisdom
Continuum subtracting Lyman-alpha images: Low redshift studies using the Solar Blind Channel of HST/ACS
Creators: name: Hayes, Matthew
name: Ostlin, Goran
name: Mas-Hesse, J. Miguel
name: Kunth, Daniel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: [ABRIDGED] We are undertaking an imaging study of local star-forming galaxies in the Lyman-alpha (Lya) emission line using the Solar Blind Channel (SBC) of the ACS onboard the HST. Observations have been obtained in Lya and H-alpha (Ha) and 6 continuum filters between ~1500AA and the I-band. Previously (Hayes et al 2005) we demonstrated that the production of Lya line-only images in the SBC-only data-set is non-trivial and that supporting data is a requirement. We here develop various methods of continuum subtraction and assess their relative performance using a variety of spectral energy distributions (SED) as input. We conclude that simple assumptions about the behavior of the ultraviolet continuum consistently lead to results that are wildly erroneous, and determine that an SED fitting approach is essential. Moreover, a single component stellar or stellar+nebular spectrum is not always sufficient for realistic template SEDs and, in order to successfully recover the input observables, care must be taken to control contributions of nebular gas and underlying stellar populations. Independent measurements of the metallicity must first be obtained, but details of the initial mass function play only a small role. We identify the need to bin together pixels in our data to obtain signal-to-noise (S/N) of ~10 in each band before processing. At S/N=10 we can recover Lya fluxes accurate to ~30% for Lya lines with intrinsic equivalent width [W(Lya)] of 10AA. This accuracy improves to ~10% for W(Lya)=100AA. We describe the image processing applied to the observations presented in Östlin et al. (2009) and the associated data-release. We also present simulations for an observing strategy for an alternative low-redshift SBC Lya imaging campaign using adjacent combinations of long-pass filters at slightly higher redshift.
description: Accepted by the Astronomical Journal
Additional file 2 of Adherence to the OARSI recommendations for designing, conducting, and reporting of clinical trials in knee osteoarthritis: a targeted literature review
Creators: name: Hummer, Charles D.
name: Huang, Yili
name: Sheehan, Brendan
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. Trial characteristics of included clinical trials.
Κωδικοποίηση, συνθετική αναπαραγωγή, φυσικοχημική μελέτη και αξιολόγηση των δυνατοτήτων αναβιώσεως χρωστικών και μεθόδων βαφής που χρησιμοποιήθηκαν στην υφαντουργία του 19ου και πρώιμου 20ου αιώνα
Creators: name: Μικροπούλου, Ελένη
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Παραδοσιακές χρωστικές
Μέθοδοι βαφής
Αποτίμηση βαφικών μεθόδων
Traditional dyes
Dyeing methods

description: Βασισμένη σε μια ιστορική και τεκμηριωμένη φυσικοχημική προσέγγιση, η μελέτη έγινε με σκοπό την κωδικοποίηση των παραδοσιακών συνταγών και των μεθόδων βαφής που χρησιμοποιήθηκαν τον Μεσαίωνα και την πρακτική αναβίωση των τεχνικών σε όλα τα στάδια π.χ. εκχύλιση των χρωστικών όπως και την πρόστυψη και τη βαφή με την προετοιμασία δειγμάτων, στα οποία μετρήθηκε το χρώμα και η αντοχή στο φως και το πλύσιμο
description: Based on both a historic and documentary and a physiochemical approach, the study is attempting to codufy well-adapted antique traditional textile dyeing recipes; to reconstruct them through a detailed sequence of simple and reproducible operations; and to optimize the methodology at all stages, i.e. extraction of the colouring principles, as well as mordanting and dyeing; the latter being avaluated through standard light and wash fastness assessments, and on the basis of systematically obtained colorimetric data
Some examples of toric Sasaki-Einstein manifolds
Creators: name: van Coevering, Craig
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C25 (Primary), 53C55, 14M25 (Secondary)

description: A series of examples of toric Sasaki-Einstein 5-manifolds is constructed. These are submanifolds of toric 3-Sasaki 7-manifolds and such a Sasaki-Einstein 5-manifold corresponds uniquely to a toric 3-Sasaki 7-manifold. This produces examples of quasi-regular Sasaki-Einstein structures on every #k(S^2 xS^3), for k odd. Toric geometry is used to construct examples of positive Ricci curvature toric Sasaki structures on non-spin 5-manifolds. Then the join construction is used to construct infinitely many quasi-regular toric Sasaki-Einstein manifolds with arbitrarily high second Betti number in every odd dimesion >3.
description: Some minor editing made. Invited contribution to "Riemannian Topology and Geometric Structures on Manifolds", Birkh\"auser 2008
Elicitation of verb translated as 'to be embarrassed' and discussion of settling disputes
Creators: name: Parker, Verdena
name: Lee-Wynant, Tyler
name: Spence, Justin
name: Yu, Xuying Yuki
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: hup

description: Audio files VP-100319-03a/c/e: elicitation of a verb translated as 'to be embarrassed', with discussion in English of people who act as go-betweens to arrange payments and a story about a time Verdena helped two people settle a disagreement.
Academic Achievement anAcademic Achievement an according the Higher Education Qualifications Frameworks to Used as Project-based Teaching of Basic Accounting Course, Thailand according the Higher Education Qualification Frameworks to Used as Project-based Teaching of Basic Accounting Course, Thailand
Creators: name: Kochawara Salarom
Publisher: name: DR.KEN Institute of Academic Development and Promotion.
Year: 2021
Subjects: Academic Achievement
Higher Education Qualifications Frameworks
Project-based Teaching Techniques
Basic Accounting Course

description: International Journal of Sociologies and Anthropologies Science Reviews (IJSASR), 1, 1, 1_6
Deterministic loading of individual atoms to a high-finesse optical cavity
Creators: name: Fortier, Kevin M.
name: Kim, Soo Y.
name: Gibbons, Michael J.
name: Ahmadi, Peyman
name: Chapman, Michael S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Individual laser cooled atoms are delivered on demand from a single atom magneto-optic trap to a high-finesse optical cavity using an atom conveyor. Strong coupling of the atom with the cavity field allows simultaneous cooling and detection of individual atoms for time scales exceeding 15 s. The single atom scatter rate is studied as a function of probe-cavity detuning and probe Rabi frequency, and the experimental results are in good agreement with theoretical predictions. We demonstrate the ability to manipulate the position of a single atom relative to the cavity mode with excellent control and reproducibility.
description: 10 pages, 5 figures, submitted to Phys. Rev. Lett