cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Reliability of Healthy Eating and Health Behavior Questionnaire for Thai Adults
Creators: name: Visith Chavasit
name: Uruwan Yamborisut
name: Piyanut Sridonpai
name: Juntima Photi
name: Jaroonsree Meenongwah
name: Piyanuch Visetchart
Publisher: name: Chulalongkorn University Press
Year: 2015
Subjects: Reliability,Eating behaviors,Health behaviors,Questionnaires,Thai,Health behavior questionnaire

description: 5, 29, Journal of Health Research
Αναδρομική μελέτη των κακώσεων της ιερής μοίρας της σπονδηλικής στήλης στο σκύλο και στη γάτα:
Creators: name: Λυγδάς, Φίλιππος Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Ιερή μοίρα
Σκύλος
Γάτα
Sacral area
Dog
Cat

description: Οι κακώσεις στην ιερή μοίρα της σπονδυλικής στήλης είναι αρκετά συχνές συνήθως ύστερα από τροχαία ατυχήματα. Εκτός από τις διαταραχές κίνησης που προκαλούν στο ζώο και οι οποίες κυμαίνονται από απλή χωλότητα έως πλήρη αδυναμία ανέγερσης και βάδισης προκαλούν και διαταραχές ούρησης ή/και αφόδευσης οι οποίες μπορεί να είναι και μη αναστρέψιμες. Οι πληροφορίες για την εκπόνηση της παρούσας μελέτης συλλέχτηκαν από το αρχείο περιστατικών της Κλινικής Ζώων Συντροφιάς του Τμήματος Κτηνιατρικής του Α.Π.Θ. και αφορούσαν τη χρονική περίοδο 2000-2010. Στην παρούσα αναδρομική μελέτη περιελήφθησαν 1) τα καταγμάτα του ιερού οστού, 2) τα εξαρθρημάτα - καταγμάτα της ιερολαγόνιας άρθρωσης, 3) τα εξαρθρήμάτα - κατάγματα της οσφυοϊεράς άρθρωσης και 4) τα εξαρθήμάτα - καταγματα της ιεροκοκκυγικής άρθρωσης.
description: Injuries in the sacral area of the spine are usually a result of road traffic accident. These injuries, apart from the orthopedic-induced lameness, may cause functional damage to the local nerves which may be irreversible.This study consists of 4 parts: 1) the study of fractures of the sacral bone and their classification, 2) the study of (sub-) luxation of the sacral bone from the iliac bone (sacroiliac luxation), 3) study of fracture or luxation of the sacral bone from the lumbar vertebrae (lumbosacral luxations) and 4) study of fracture or luxation of the sacral bone from the coccygeal vertebrae (sacrococcygeal luxation).Information was retrieved from cases that were presented in Companion Animal Clinic of the Veterinary School of Auth during a ten year period. Apart from the pelvic fractures and the neurological deficits, epidemiological data, such as the age, the sex, the weight and the initial cause of presentation were recorded.
The Tragedy of Mathematics in Russia
Creators: name: Kutateladze, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: History and Overview (math.HO)
subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 01A72

description: This is a brief overview of the role of mathematicians in the so-called "Luzin Case" as well as some analysis of the mathematical and humanitarian roots of the affair.
description: An enlarged and revised version citing new sources with typos corrected
Cuspy and fractured black hole shadows in a toy model with axisymmetry
Creators: name: Qian, Wei-Liang
name: Chen, Songbai
name: Shao, Cheng-Gang
name: Wang, Bin
name: Yue, Rui-Hong
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Cuspy shadow was first reported for hairy rotating black holes, whose metrics deviate significantly from the Kerr one. The non-smooth edge of the shadow is attributed to a transition between different branches of unstable but bounded orbits, known as the fundamental photon orbits, which end up at the light rings. In searching for a minimal theoretical setup to reproduce such a salient feature, in this work, we devise a toy model with axisymmetry, a slowly rotating Kerr black hole enveloped by a thin slowly rotating dark matter shell. Despite its simplicity, we show rich structures regarding fundamental photon orbits explicitly in such a system. We observe two disconnected branches of unstable spherical photon orbits, and the jump between them gives rise to a pair of cusps in the resultant black hole shadow. Besides the cuspy shadow, we explore other intriguing phenomena when the Maxwell construction cannot be established. We find that it is possible to have an incomplete arc of Einstein rings and a "fractured" shadow. The potential astrophysical significance of the corresponding findings is addressed.
description: 15 pages, 3 figures
A contribution to architectural/engineered design for timber structures using knowledge-based methods
Creators: name: Taylor, Robert John
Publisher: name: University of British Columbia
Year: 2009

description: This thesis attempts to synthesize knowledge from the fields of architecture, engineering, and computer science in the context of design. In particular, a novel approach to modeling the architectural and engineering design of structural connections is presented. Computer automation using parametric object-oriented methods for quantitative design is new for connections, and the inclusion of qualitative features native to architectural considerations presents a more holistic view to automated design of connections. A unique method of representing connections as a kit of parts for assembly is presented that is based on the load path within the connection. The configuration model facilitates engineering discretization and evaluation; while the connection, if properly designed, can be more easily “read” by the observer - a desirable feature of a good work of architecture. Quantitative aspects, typically thought of as engineering qualities, are combined with the adapted qualitative, typically architectural, aspects of a designed artifact through the use of dynamic fuzzy logic membership functions. A fuzzy logic adaptation of the qualitative attributes of a designed artifact can be used for assessing or generating aesthetics consistent within the scope of aesthetic definitions offered by the designer. The adaptation, therefore, does not constrain the designer to a prescribed attribute definition, but an architectural expression which is personal and unique. A brief development of membership function representation, calibration, and application is offered. Results from a particular demonstrative study of proximity, and another on colour reveal a promising application of fuzzy logic technology to qualitative design issues. Among a number of smaller innovations, the main contribution of this thesis to the advancement of knowledge is three fold: a new method to represent structural connections in general; a synthesis of truths underlying connection configuration design in timber structures so that design automation using object-oriented methods can be facilitated; and development of an automation method for connection design that separates program control from object data, which is a significant benefit in ease of automated application expansion. The work presented here is intended to break new ground in these areas for others to investigate further towards resolving a significant need in design.
On the Structure of the Orion A Cloud and the Formation of the Orion Nebula Cluster
Creators: name: Hartmann, Lee
name: Burkert, Andreas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We suggest that the Orion A cloud is gravitationally collapsing on large scales, and is producing the Orion Nebula Cluster due to the focusing effects of gravity acting within a finite cloud geometry. In support of this suggestion, we show how an elliptical rotating sheet of gas with a modest density gradient along the major axis can collapse to produce a structure qualitatively resembling Orion A, with a fan-shaped structure at one end, ridges or filaments along the fan, and a narrow curved filament at the other end reminiscent of the famous integral-shaped filament. The model produces a local concentration of mass within the narrow filament which in principle could form a dense cluster of stars like that of the Orion Nebula. We suggest that global gravitational contraction might be a more common feature of molecular clouds than previously recognized, and that the formation of star clusters is a dynamic process resulting from the focusing effects of gravity acting upon the geometry of finite clouds.
description: 23 pages, 6 figures, to appear in the Astrophysical Journal
Relationship between Dyslipidemia and Hypertension: Follow-Up of Medical Record Data in Dyslipidemia Patients
Creators: name: Sukanya Chongthawonsatid
Publisher: name: Chulalongkorn University Press
Year: 2015
Subjects: Dyslipidemia,Hypertension,Kaplan Meier,Medical record

description: 5, 29, Journal of Health Research
A Comparison of the Quality of Life in Myofascial Pain Syndrome Patients Treated with the Court-Type Traditional Thai Massage and Topical Diclofenac
Creators: name: Jurairat Boonruab
name: Sunyarn Niempoog
name: Pattaraarchachai, Junya
name: Chanida Palanuvej
name: Nijsiri Ruangrungsi
Publisher: name: Chulalongkorn University Press
Year: 2015
Subjects: Myofascial pain syndrome (MPS),Health-related quality of life (HRQOL),Short-form health survey (SF-36)

description: 5, 29, Journal of Health Research
Simulating complex networks in phase space: Gaussian boson sampling
Creators: name: Drummond, Peter D.
name: Opanchuk, Bogdan
name: Dellios, Alexander
name: Reid, Margaret D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show how phase-space simulations of Gaussian quantum states in a photonic network permit verification of measurable correlations of Gaussian boson sampling (GBS) quantum computers. Our results agree with experiments for up to 100-th order correlations, provided decoherence is included. We extend this to more than 16,000 modes, and describe how to simulate genuine multipartite entanglement.
description: Corrected typographical errors in text, equations
Additional file 3 of Evaluating an early social communication intervention for young children with Down syndrome (ASCEND): results from a feasibility randomised control trial
Creators: name: Stojanovik, Vesna
name: Pagnamenta, Emma
name: Sampson, Sarah
name: Sutton, Rachel
name: Jones, Benjamin
name: Joffe, Victoria
name: Harvey, Kate
name: Pizzo, Elena
name: Rae, Sarah
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Additional file 3: Appendix 3: Contamination questionnaire.
Επισκόπου Ναζιανζού Παύλου ντε Μπαγιεστέρ (Pablo de Ballester) Βίος – Έργο – Κηρύγματα:
Creators: name: Juan Ramon Saravia Iosif (Χουάν Ραμόν Σαράβια, αρχ. Ιωσήφ) Γαβριήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Βιογραφία
Ορθόδοξη Ιεραποστολή
Ομιλητική
Biography
Orthodox missionary
Homiletics

description: Η εργασία περιέχει μια σύντομη βιογραφία του επισκόπου Ναζιανζού Παύλου ντε Μπαγιεστέρ, ένα κατάλογο του συγγραφικού, μεταφραστικού και ομιλητικού έργου του, μια μετάφραση στα ελληνικά μιας ομιλίας του και μια μελέτη για τα ομιλητικά χαρακτηριστικά του.
description: The investigation includes a short biography of Bishop of Nazianzou Pablo de Ballester, a catalogue of his writings, translations and homilies, a translation into Greek of one of his homilies and a study of the characteristics of his preaching.
Additional file 4 of Evaluating an early social communication intervention for young children with Down syndrome (ASCEND): results from a feasibility randomised control trial
Creators: name: Stojanovik, Vesna
name: Pagnamenta, Emma
name: Sampson, Sarah
name: Sutton, Rachel
name: Jones, Benjamin
name: Joffe, Victoria
name: Harvey, Kate
name: Pizzo, Elena
name: Rae, Sarah
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Additional file 4: Appendix 4: Parent satisfaction questionnaire.
A revised lower estimate of ozone columns during Earth's oxygenated history
Creators: name: Cooke, Gregory
name: Marsh, Dan
name: Walsh, Catherine
name: Black, Benjamin
name: Lamarque, Jean-François
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The history of molecular oxygen (O$_2$) in Earth's atmosphere is still debated; however, geological evidence supports at least two major episodes where O$_2$ increased by an order of magnitude or more: the Great Oxidation Event (GOE) and the Neoproterozoic Oxidation Event. O$_2$ concentrations have likely fluctuated (between $10^{-3}$ and $1.5$ times the present atmospheric level) since the GOE $\sim 2.4$ Gyr ago, resulting in a time-varying ozone (O$_3$) layer. Using a three-dimensional chemistry-climate model, we simulate changes in O$_3$ in Earth's atmosphere since the GOE and consider the implications for surface habitability, and glaciation during the Mesoproterozoic. We find lower O$_3$ columns (reduced by up to $4.68$ times for a given O$_2$ level) compared to previous work; hence, higher fluxes of biologically harmful UV radiation would have reached the surface. Reduced O$_3$ leads to enhanced tropospheric production of the hydroxyl radical (OH) which then substantially reduces the lifetime of methane (CH$_4$). We show that a CH$_4$ supported greenhouse effect during the Mesoproterozoic is highly unlikely. The reduced O$_3$ columns we simulate have important implications for astrobiological and terrestrial habitability, demonstrating the relevance of three-dimensional chemistry-climate simulations when assessing paleoclimates and the habitability of faraway worlds.
description: Published in Royal Society Open Science. 20 pages, 8 figures
Survey Results of Knowledge Sharing Preferences and Practices in Public Health Communication Professionals in Thailand's Department of Disease Control: a Descriptive Study
Creators: name: Achara Bunchum
name: Ornjaree Na Taguatung
name: Sukonthasab, Suchitra
name: Smith Boonchutima
Publisher: name: Chulalongkorn University Press
Year: 2015
Subjects: Communication,Facebook,Knowledge sharing,Knowledge management

description: 5, 29, Journal of Health Research
Complex Physics in Cluster Cores: Showstopper for the Use of Clusters for Cosmology?
Creators: name: Reiprich, Thomas H.
name: Hudson, Daniel S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The influence of cool galaxy cluster cores on the X-ray luminosity--gravitational mass relation is studied with Chandra observations of 64 clusters in the HIFLUGCS sample. As preliminary results we find (i) a significant offset of cool core (CC) clusters to the high luminosity (or low mass) side compared to non-cool core (NCC) clusters, (ii) a smaller scatter of CC clusters compared to NCC clusters, (iii) a decreasing fraction of CC clusters with increasing cluster mass, (iv) a reduced scatter in the luminosity--mass relation for the entire sample if the luminosity is scaled properly with the central entropy. The implications of these results on the intrinsic scatter are discussed.
description: 6 pages; to appear in the proceedings of the conference Heating vs. Cooling in Galaxies and Clusters of Galaxies, edited by H. Boehringer, P. Schuecker, G.W. Pratt, and A. Finoguenov. Dedicated to the memory of Peter Schuecker
Directional Detectability of Dark Matter With Single Phonon Excitations: Target Comparison
Creators: name: Coskuner, Ahmet
name: Trickle, Tanner
name: Zhang, Zhengkang
name: Zurek, Kathryn M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Single phonon excitations are sensitive probes of light dark matter in the keV-GeV mass window. For anisotropic target materials, the signal depends on the direction of the incoming dark matter wind and exhibits a daily modulation. We discuss in detail the various sources of anisotropy, and carry out a comparative study of 26 crystal targets, focused on sub-MeV dark matter benchmarks. We compute the modulation reach for the most promising targets, corresponding to the cross section where the daily modulation can be observed for a given exposure, which allows us to combine the strength of DM-phonon couplings and the amplitude of daily modulation. We highlight Al$_2$O$_3$ (sapphire), CaWO$_4$ and h-BN (hexagonal boron nitride) as the best polar materials for recovering a daily modulation signal, which feature $\mathcal{O}(1 - 100)\%$ variations of detection rates throughout the day, depending on the dark matter mass and interaction. The directional nature of single phonon excitations offers a useful handle to mitigate backgrounds, which is crucial for fully realizing the discovery potential of near future experiments.
description: 13 pages, 11 figures; updated to match published version
Uniform and Partially Uniform Redistribution Rules
Creators: name: Smarandache, Florentin
name: Dezert, Jean
Publisher: name: arXiv
Year: 2007
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.4.8

description: This short paper introduces two new fusion rules for combining quantitative basic belief assignments. These rules although very simple have not been proposed in literature so far and could serve as useful alternatives because of their low computation cost with respect to the recent advanced Proportional Conflict Redistribution rules developed in the DSmT framework.
description: 4 pages; "Advances and Applications of DSmT for Plausible and Paradoxical reasoning for Information Fusion", International Workshop organized by the Bulgarian IST Centre of Competence in 21st Century, December 14, 2006, Bulg. Acad. of Sciences, Sofia, Bulgaria
Additional file 5 of Evaluating an early social communication intervention for young children with Down syndrome (ASCEND): results from a feasibility randomised control trial
Creators: name: Stojanovik, Vesna
name: Pagnamenta, Emma
name: Sampson, Sarah
name: Sutton, Rachel
name: Jones, Benjamin
name: Joffe, Victoria
name: Harvey, Kate
name: Pizzo, Elena
name: Rae, Sarah
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Additional file 5: Appendix 5: Topic guide for interviews with SaLTs about intervention acceptability
ProxyFAUG: Proximity-based Fingerprint Augmentation
Creators: name: Anagnostopoulos, Grigorios G.
name: Kalousis, Alexandros
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The proliferation of data-demanding machine learning methods has brought to light the necessity for methodologies which can enlarge the size of training datasets, with simple, rule-based methods. In-line with this concept, the fingerprint augmentation scheme proposed in this work aims to augment fingerprint datasets which are used to train positioning models. The proposed method utilizes fingerprints which are recorded in spacial proximity, in order to perform fingerprint augmentation, creating new fingerprints which combine the features of the original ones. The proposed method of composing the new, augmented fingerprints is inspired by the crossover and mutation operators of genetic algorithms. The ProxyFAUG method aims to improve the achievable positioning accuracy of fingerprint datasets, by introducing a rule-based, stochastic, proximity-based method of fingerprint augmentation. The performance of ProxyFAUG is evaluated in an outdoor Sigfox setting using a public dataset. The best performing published positioning method on this dataset is improved by 40% in terms of median error and 6% in terms of mean error, with the use of the augmented dataset. The analysis of the results indicate a systematic and significant performance improvement at the lower error quartiles, as indicated by the impressive improvement of the median error.
Τόποι και ισοδυναμικές στο πεδίο της ψηφιακής επεξεργασίας της εικόνας:
Creators: name: Σκαρκαλάς, Ναούμ Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Εικόνα
Βυζαντινή
Ψηφιακή
Icon
Byzantine
Digital

description: Η παρούσα εργασία αποτελεί μια παρουσίαση σχετικά με τις εικόνες στην ορθόδοξη λατρεία, θεολογία και τέχνη. Η προσπάθεια αφορά την έκθεση ορισμένων βασικών εννοιών που στοιχειοθετούν την έννοια της εικόνας στην Ορθόδοξη Εκκλησία, αλλά παράλληλα επιδιώκει να καταδείξει μια νέα διάστασή της μέσα από την οργανωμένη και δομημένη προβολή από τη σύγχρονη τεχνολογία και το διαδεδομένο μέσο του διαδικτύου.
description: The present thesis is a presentation of religious icons in Orthodox worship, Theology and art. The study is about the exposure of some basic concepts that constitute the meaning of the icon in the Orthodox Church, but also seeks to demonstrate a new dimension , of organized and structured view of religious icon through the modern technology and the widespread medium of internet.
Fuzzy logic in polder flood control operations in Bangkok
Creators: name: Agsorn, Songkran
Publisher: name: University of British Columbia
Year: 2009

description: The flood situation in Bangkok and the way in which it has evolved is described in this study. The present approach to flood control involves use of the polder concept. Since excess water in a polder has to be disposed of either through gravity drainage or pumping, the way in which the gates and/or pumps are operated becomes very important. In practice, operators of such facilities tend to be risk averse and favor operating according to fixed rules. Fuzzy logic programming was investigated as a way to improve operations, while not departing too far from the fixed rule operation that operators prefer. Some simple experiments were first done to find the most suitable alternative to present methods of incorporating fuzzy information. A new fuzzy algorithm was proposed and tested. Due to unavailability of actual data, a simple, but reasonably representative flood control situation, typical of those in Bangkok was used. Operating procedures were developed based on synthetic rainfalls and runoffs. Then, fuzzy operating rules were derived, and a fuzzy rule base was set up. Next, simulations were used in which flood hydrographs were generated and the system was “operated” using fuzzy logic programming and the fuzzy rule base which was developed. The results were compared with three other systems: fixed rule system, a time varying rule curve, and “optimal” operation. Besides the main experiments, which involved only pump operations, additional sets of experiments were conducted for the cases with combined pump and gate operations and with tides. Fuzzy logic programming was demonstrated to be a very promising tool for improving flood control operating procedures for polder systems such as those in use in Bangkok. The procedure can be looked upon as an extension of the fixed rule operating procedures presently being used by the operators. Further extensions are possible, including the use of flow forecasts. However, the main purpose of this study was to investigate the feasibility of using fuzzy logic programming to improve on existing operating procedures.
Lens-Aided Multi-Angle Spectroscopy (LAMAS) Reveals Small-Scale Outflow Structure in Quasars
Creators: name: Green, Paul J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Spectral differences between lensed quasar image components are common. Since lensing is intrinsically achromatic, these differences are typically explained as the effect of either microlensing, or as light path time delays sampling intrinsic quasar spectral variability. Here we advance a novel third hypothesis: some spectral differences are due to small line-of-sight differences through quasar disk wind outflows. In particular, we propose that variable spectral differences seen only in component A of the widest separation lens SDSSJ1004+4112 are due to differential absorption along the sightlines. The absorber properties required by this hypothesis are akin to known broad absorption line (BAL) outflows but must have a broader, smoother velocity profile. We interpret the observed CIV emission line variability as further evidence for spatial fine structure transverse to the line of sight. Since outflows are likely to be rotating, such absorber fine structure can consistently explain some of the UV and X-ray variability seen in AGN. The implications are many: (1) Spectroscopic differences in other lensed objects may be due to this ``lens-aided multi-angle spectroscopy'' (LAMAS). (2) Outflows have fine structure on size scales of arcsec as seen from the nucleus. (3) Assuming either broad absorption line region sizes proposed in recent wind models, or typically assumed continuum emission region sizes, LAMAS and/or variability provide broadly consistent absorber sizescale estimates of about 10^15cm. (4) Very broad smooth absorption may be ubiquitous in quasar spectra, even when no obvious troughs are seen.
description: accepted to ApJ
Additional file 6 of Evaluating an early social communication intervention for young children with Down syndrome (ASCEND): results from a feasibility randomised control trial
Creators: name: Stojanovik, Vesna
name: Pagnamenta, Emma
name: Sampson, Sarah
name: Sutton, Rachel
name: Jones, Benjamin
name: Joffe, Victoria
name: Harvey, Kate
name: Pizzo, Elena
name: Rae, Sarah
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Additional file 6: Appendix 6: Intervention levels (1-7) based on Whalen & Schreibman (2003).
Quantum Deformations and Superintegrable Motions on Spaces with Variable Curvature
Creators: name: Ragnisco, Orlando
name: Ballesteros, Angel
name: Herranz, Francisco J.
name: Musso, Fabio
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37J35; 17B37

description: An infinite family of quasi-maximally superintegrable Hamiltonians with a common set of (2N-3) integrals of the motion is introduced. The integrability properties of all these Hamiltonians are shown to be a consequence of a hidden non-standard quantum sl(2,R) Poisson coalgebra symmetry. As a concrete application, one of this Hamiltonians is shown to generate the geodesic motion on certain manifolds with a non-constant curvature that turns out to be a function of the deformation parameter z. Moreover, another Hamiltonian in this family is shown to generate geodesic motions on Riemannian and relativistic spaces all of whose sectional curvatures are constant and equal to the deformation parameter z. This approach can be generalized to arbitrary dimension by making use of coalgebra symmetry.
description: This is a contribution to the Proc. of the O'Raifeartaigh Symposium on Non-Perturbative and Symmetry Methods in Field Theory (June 2006, Budapest, Hungary), published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Container-based sequence data analysis workflow for reproducible research
Creators: name: Tazro Ohta
name: Ogasawara, Osamu
Publisher: name: F1000Research
Year: 2015

description: Publishing raw data on public repository enabled researchers to reuse data and reproduce the published results. Most of the data analysis methods which connect raw data and published results, however, are described in natural language in the section of materials and methods in published articles that often has a lack of information to execute the analysis workflow exactly same as done in the original study. To achieve more accurate description and sharing of data analysis workflow for the reproducible research, we developed a framework based on Docker, the container- based virtual environment, and the several analysis workflow of high-throughput sequencing data are converted into the sets of docker container to be executed on the developed framework. Apache Mesos is also introduced on our large scale computing infrastructure as a resource manager, and we developed job schedular which communicates with Mesos to execute containers successively. This framework works on any kind of computational environment where docker and Mesos run, and supports users to manage, share, and re-execute their tools and workflows. We will provide the results of framework design and the challenges to better reproducible research environment for all the computational biology.​
Coordinate-free classic geometries
Creators: name: Anan'in, Sasha
name: Grossi, Carlos H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A20 (Primary) 53A35, 51M10 (Secondary)

description: This paper is devoted to a coordinate-free approach to several classic geometries such as hyperbolic (real, complex, quaternionic), elliptic (spherical, Fubini-Study), and lorentzian (de Sitter, anti de Sitter) ones. These geometries carry a certain simple structure that is in some sense stronger than the riemannian structure. Their basic geometrical objects have linear nature and provide natural compactifications of classic spaces. The usual riemannian concepts are easily derivable from the strong structure and thus gain their coordinate-free form. Many examples illustrate fruitful features of the approach. The framework introduced here has already been shown to be adequate for solving problems concerning particular classic spaces.
description: 20 pages, 2 pictures, 1 table, 32 references. Final version
Η μελέτη Ετησιών ανέμων στην Αττική.:
Creators: name: Βουρλιώτη, Παρασκευή Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Ετησίες άνεμοι
Λ-ημέρες
Συστήματα ανέμων στην Αττική
Etesian winds
Λ-days
Wind systems in Attica

description: Στόχος της παρούσας διπλωματικής εργασίας είναι η μελέτη της εμφάνισης των Ετησιών ανέμων στην Αττική. Αρχικά συγκρίθηκαν οι Λ-ημέρες (δείκτης βόρειο-ανατολικών ανέμων στο ΕΕΑ) με τις ημέρες που ήταν γνωστό ότι στο Αιγαίο επικρατούσε Ετησίας. Η σύγκριση έδειξε ότι η εμφάνιση των Λ-ημερών πιθανόν να αποτελεί ένα τοπικό φαινόμενο που ενισχύεται από την παρουσία Ετησία στο Αιγαίο. Ακολούθησε η μελέτη των ανεμολογικών δεδομένων στους σταθμούς Σπάτων και Ελευσίνας με στόχο την ανάλυση της διεύθυνσης και ταχύτητας ανέμου στους σταθμούς αυτούς όταν στο ΕΕΑ έχει οριστεί Λ-ημέρα και παράλληλα πνέει Ετησίας στο Αιγαίο καθώς και στην περίπτωση που δεν πνέει Ετησίας. Στο τελευταίο κομμάτι της εργασίας μελετήθηκε η ναυμαχία της Σαλαμίνας χρησιμοποιώντας ενδείξεις ιστορικών κειμένων για τις καιρικές συνθήκες που επικρατούσαν την ώρα της ναυμαχίας.
description: The aim of this thesis is to study the Etesian winds in Attica .Initially, the L-Days (Indicator of north-east winds at NOA) were compared to the days where Etesian was prevailing at the Aegean during the same period. The comparison showed that the onset of L-days is a rather local phenomenon that seems to be boosted by the presence of the Etesians at the Aegean. The study of the wind data from the stations of Spata and Elefsis followed and the purpose was the analysis of the wind speed and direction at these stations. In the last part of this thesis the battleship of Salamis is examined by using historical indications about the weather conditions during the battle, combined with a statistical study of wind data.
A note about Khoshnevisan--Xiao conjecture
Creators: name: Manstavičius, Martynas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J45 (Primary) 60G51, 60J25 (Secondary)

description: Khoshnevisan and Xiao showed in [Ann. Probab. 33 (2005) 841--878] that the statement about almost surely vanishing Bessel--Riesz capacity of the image of a Borel set $G\subset\mathbb{R}_+$ under a symmetric Lévy process $X$ in $\mathbb{R}^d$ is equivalent to the vanishing of a deterministic $f$-capacity for a particular function $f$ defined in terms of the characteristic exponent of $X$. The authors conjectured that a similar statement is true for all Lévy processes in $\mathbb{R}^d$. We show that the conjecture is true provided we extend the definition of $f$ and require certain integrability conditions which cannot be avoided in general.
description: Published at http://dx.doi.org/10.1214/009117906000000197 in the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
The morphology of star-forming gas and its alignment with galaxies and dark matter haloes in the EAGLE simulations
Creators: name: Hill, Alexander D.
name: Crain, Robert A.
name: Kwan, Juliana
name: McCarthy, Ian G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present measurements of the morphology of star-forming gas in galaxies from the EAGLE simulations, and its alignment relative to stars and dark matter (DM). Imaging of such gas in the radio continuum enables weak lensing experiments that complement traditional optical approaches. Star-forming gas is typically more flattened than its associated stars and DM, particularly for present-day subhaloes of total mass $\sim$$10^{ 12-12.5} \mathrm{M_{ \odot}}$, which preferentially host star-forming galaxies with rotationally-supported stellar discs. Such systems have oblate, spheroidal star-forming gas distributions, but in both less- and more-massive subhaloes the distributions tend to be prolate, and its morphology correlates positively and significantly with that of its host galaxy's stars, both in terms of sphericity and triaxiality. The minor axis of star-forming gas most commonly aligns with the minor axis of its host subhalo's DM, but often aligns more closely with one of the other two principal axes of the DM distribution in prolate subhaloes. Star-forming gas aligns with DM less strongly than is the case for stars, but its morphological minor axis aligns closely with its kinematic axis, affording a route to observational identification of the unsheared morphological axis. The projected ellipticities of star-forming gas in EAGLE are consistent with shapes inferred from high-fidelity radio continuum images, and they exhibit greater shape noise than is the case for images of the stars, owing to the greater characteristic flattening of star-forming gas with respect to stars.
description: 24 pages, 17 figures. Published in MNRAS
Complex coacervation: A field theoretic simulation study of polyelectrolyte complexation
Creators: name: Lee, Jonghoon
name: Popov, Yuri O.
name: Fredrickson, Glenn H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using the complex Langevin sampling strategy, field theoretic simulations are performed to study the equilibrium phase behavior and structure of symmetric polycation-polyanion mixtures without salt in good solvents. Static structure factors for the segment density and charge density are calculated and used to study the role of fluctuations in the electrostatic and chemical potential fields beyond the random phase approximation. We specifically focus on the role of charge density and molecular weight on the structure and complexation behavior of polycation-polyanion solutions. A demixing phase transition to form a ``complex coacervate'' is observed in strongly charged systems, and the corresponding spinodal and binodal boundaries of the phase diagram are investigated.
Protoneutron star dynamos: pulsars, magnetars, and radio-silent X-ray emitting neutron stars
Creators: name: Bonanno, A.
name: Urpin, V.
name: Belvedere, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the mean-field dynamo action in protoneutron stars that are subject to instabilities during the early evolutionary phase. The mean field is generated in the neutron-finger unstable region where the Rossby number is $\sim 1$ and mean-field dynamo is efficient. Depending on the rotation rate, the mean-field dynamo can lead to the formation of three different types of pulsars. If the initial period of the protoneutron star is short, then the generated large-scale field is very strong ($> 3 \times 10^{13}$G) and exceeds the small-scale field at the neutron star surface. If rotation is moderate, then the pulsars are formed with more or less standard dipole fields ($< 3 \times 10^{13}$G) but with surface small-scale magnetic fields stronger than the dipole field. If rotation is very slow, then the mean-field dynamo does not operate, and the neutron star has no global field. Nevertheless, strong small-scale fields are generated in such pulsars, and they can manifest themselves as objects with very low spin-down rate but with a strong magnetic field inferred from the spectral features.
description: 4 pages, 2 figures, to appear on A&A
Fracture resistance of micro-fiber reinforced cement composites
Creators: name: Genois, Isabelle
Publisher: name: University of British Columbia
Year: 2009

description: The addition of very fine fibers of steel and carbon has proven to be one of the most effective ways of improving the strength and toughness of Portland cement-based materials. It is now recognized that these properties are directly related to the capability of the material to resist crack propagation. In the present study, a contoured double cantilever beam (CDCB) testing apparatus was developed to assess the crack growth resistance of fiber reinforced composites. This property was obtained in terms of fracture toughness versus effective crack length curves (KR-curves) using concepts of non-linear fracture mechanics. The influence of the different mix design parameters on the crack growth resistance of both steel and carbon fiber reinforced composites was determined. The parameters studied included both the content and the type of fibers, the content of silica fume, the content and the gradation of the sand and the length of the carbon fibers. Moreover, the flow number of the fresh mixes, compressive strength and modulus of elasticity were measured. Among the parameters investigated, the fiber content in the mix was found to be the most effective in enhancing the properties of the composites; improvements in the load carrying capacity, specific fracture energy, fracture toughness and crack growth resistance were observed with an increase in the fiber volume fraction. These improvements were also found to be more pronounced in the cases where carbon fibers were used rather than steel fibers. The length of the carbon fibers, however, did not seem to have an influence on the properties of the composites. Silica fume additions only appeared to have an influence when introduced into carbon fiber composites. An addition as low as 5% seems to be sufficient to eliminate all agglomerations of fibers demonstrating the efficiency of the silica fume only as a workability aid and that greater silica fume additions are not justified. Sand additions appeared to be an excellent means of improving both the tensile strength and the crack growth resistance of plain mortars. In that sense, it can be mentioned that the fracture toughness of mortar containing a sand/cement ratio of 2 was only 12% smaller than the fracture toughness of paste reinforced with 2% of steel fibers. On the other hand, sand did not have a significant influence on the crack growth resistance of fiber reinforced mortars. Reducing the cement content by the addition of sand in producing fiber composites would therefore reduce both shrinkage as well as the cost without affecting the efficiency of the fiber. However, additions of sand seemed to have a detrimental effect on the air content of the composites which led to reductions in the compressive strength. This effect was proportional to the sand content and was more pronounced in the case of steel fibers.
Το παιδί και τα δικαιώματά του:
Creators: name: Τόλη, Ευγενία Αστέριου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Παιδί
Δικαιώματα
Προστασία
Childhood
Rights
Protection

description: Σκοπός της παρούσας εργασίας είναι η συνειδητοποίηση της παιδικής ηλικίας ως μιας ξεχωριστής κοινωνικής κατηγορίας, της διαλεκτικής σχέσης της με την κοινωνία των ενηλίκων και της σημασίας μεγαλύτερης προστασίας της καθημερινά. Στην αρχή παρουσιάζεται μια ιστορική και κοινωνική αναδρομή της παιδικής ηλικίας. Στη συνέχεια αναφέρονται οι βασικές νομικές διατάξεις της διεθνούς και εσωτερικής νομοθεσίας που αφορούν στην παιδική ηλικία. Ειδικότερη αναφορά γίνεται στα δικαιώματα στην υγεία, την εκπαίδευση και την εργασία. Επιπλέον, γίνεται μνεία στην Έκθεση της Ελληνικής Επιτροπής της Unicef, η οποία παρέχει σαφείς καταγραφές και μέτρα για την κατάσταση των παιδιών στην Ελλάδα σε συνδυασμό και με την οικονομική κρίση.
description: The purpose of the present paper is to raise awareness of childhood as a separate social category, its dialectical relationship with the adult society and the importance of greater protection of it daily. At first presents a historical and social overview of childhood. After that there are references of the basic legal provisions of international and domestic law relating to childhood. Specific reference is made to the rights to health, education and employment. Furthermore, it is mentioned the Report of the Committee of Greek Unicef, which provides clear records and measures for the situation of children in Greece in conjunction with the financial crisis.
Αλυσίδες αστικών-υπεραστικών μετακινήσεων με κόμβους μετεπιβίβασης το Ν.Σ.Σ. και το σταθμό Κ.Τ.Ε.Λ. Θεσσαλονίκης:
Creators: name: Τσαλταμπάση, Καλλιόπη Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Αλυσίδες μετακινήσεων
Κόμβοι μετεπιβίβασης
Θεσσαλονίκη
Trip chain
Transit nodes
Thessaloniki

description: Η ακόλουθη Μεταπτυχιακή Εργασία έχει ως αντικείμενο την μελέτη των αλυσίδων αστικών-περιφερειακών μετακινήσεων της Θεσσαλονίκης με κόμβους μετεπιβίβασης το Νέο Σιδηροδρομικό Σταθμό και το σταθμό ΚΤΕΛ Θεσσαλονίκης. Ως στόχο έχει τη διερεύνηση των παραγόντων οι οποίοι επηρεάζουν τις μετακινήσεις αυτές, τόσο για το αστικό όσο και για το υπεραστικό τμήμα των μετακινήσεων. Η διερεύνηση γίνεται με την ανάλυση δεδομένων από έρευνες ερωτηματολογίων οι οποίες διεξήχθησαν το Μάιο του 2011 και το Δεκέμβριο του 2011 στο Νέο Σιδηροδρομικό Σταθμό (Ν.Σ.Σ.) και το Μάιο του 2010 και το Δεκέμβριο του 2012 στο σταθμό ΚΤΕΛ ¨Μακεδονία¨. Η ανάλυση αυτών των δεδομένων γίνεται με το πρόγραμμα Excel και γίνεται εξαγωγή διαγραμμάτων απλού ή συνδυαστικού περιεχομένου, τα οποία σχετίζουν την επιλογή μεταφορικού μέσου για τη μετακίνηση προς τους σταθμούς μετεπιβίβασης με διάφορα κοινονικοοικονομικά χαρακτηριστικά των μετακινούμενων. Το ενδιαφέρον εστιάζεται στην χρήση των Δημόσιων Αστικών Συγκοινωνιών για το αστικό τμήμα της μετακίνησης.
description: The following Thesis is the study of urban-regional trip chain in Salonica with transit nodes of the New railway station and the bus station of Thessaloniki. The aim is to investigate the factors that influence such trips, both in the urban and intercity travel section. The investigation is done by analyzing data from questionnaire surveys conducted in May 2011 and December 2011 at New railway station (N.S.S.) and in May 2010 and December 2012 to station KTEL “Makedonia”. The analysis of these data has been done with the Excel program and layouts are exported, which associate the transport option for moving to transit stations with different social economic features. The interest focuses on the use of Public Transport for the urban part of the trip.
Astrometry and Photometry with Coronagraphs
Creators: name: Sivaramakrishnan, Anand
name: Oppenheimer, Ben R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We propose a solution to the problem of astrometric and photometric calibration of coronagraphic images with a simple optical device which, in theory, is easy to use. Our design uses the Fraunhofer approximation of Fourier optics. Placing a periodic grid of wires (we use a square grid) with known width and spacing in a pupil plane in front of the occulting coronagraphic focal plane mask produces fiducial images of the obscured star at known locations relative to the star. We also derive the intensity of these fiducial images in the coronagraphic image. These calibrator images can be used for precise relative astrometry, to establish companionship of other objects in the field of view through measurement of common proper motion or common parallax, to determine orbits, and to observe disk structure around the star quantitatively. The calibrator spots also have known brightness, selectable by the coronagraph designer, permitting accurate relative photometry in the coronagraphic image. This technique, which enables precision exoplanetary science, is relevant to future coronagraphic instruments, and is particularly useful for `extreme' adaptive optics and space-based coronagraphy.
description: To appear in ApJ August 2006, 27 preprint style pages 4 figures
Survey on ICP, target CPP and MAP measurement level in patients with severe acute brain injury in different ICUs
Creators: name: Laer, Marie Van
name: Deschilder, Koen
name: Stockman, Willem
Publisher: name: F1000Research
Year: 2015

description: Since most patients with acute brain injury are treated head-up 30-45°, there can be a height difference of up to 15 cm between the heart and the ear canal. This causes a difference between “mathematical” CPP and “true” CPP of up to 11 mmHg depending on the zero reference level used and the body length of the patient. We conducted a survey to analyse the current practice on CPP targets and zero reference levels in different ICUs.

Considering the influence of head-up position on CPP, the variations among centers and the narrow range of CPP thresholds, future studies and guidelines should describe where MAP is to be measured.

Alternatively, we propose a new formula for CPP : “true” CPP as being MAP (heart) – ICP (ear) – height difference (heart to ear canal in cm) x 0.73.
Safety Evaluation of Critical Applications Distributed on TDMA-Based Networks
Creators: name: Simonot-Lion, Françoise
name: Simonot, François
name: Song, Ye-Qiong
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: Critical embedded systems have to provide a high level of dependability. In automotive domain, for example, TDMA protocols are largely recommended because of their deterministic behavior. Nevertheless, under the transient environmental perturbations, the loss of communication cycles may occur with a certain probability and, consequently, the system may fail. This paper analyzes the impact of the transient perturbations (especially due to Electromagnetic Interferences) on the dependability of systems distributed on TDMA-based networks. The dependability of such system is modeled as that of "consecutive-k-out-of-n:F" systems and we provide a efficient way for its evaluation.