cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The EDAM Ontology
Creators: name: Ménager, Hervé
name: Matúš Kalaš
name: Ison, Jon
name: Grosjean, Marie
Publisher: name: F1000Research
Year: 2015

description: EDAM is an ontology of well established, familiar concepts that are prevalent within bioinformatics, including types of data and data identifiers, data formats, operations and topics. EDAM is a simple ontology – essentially a set of terms with synonyms and definitions – organised into an intuitive hierarchy for convenient use by curators, software developers and end-users.
EDAM aims to unify semantically the bioinformatics concepts in common use, provide curators with a comprehensive controlled vocabulary that is broadly applicable, and support new and powerful search, browse and query functions.
Nonholonomic Ricci Flows and Running Cosmological Constant: 3D Taub-NUT Metrics
Creators: name: Vacaru, Sergiu I.
name: Visinescu, Mihai
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The common assertion that the Ricci flows of Einstein spaces with cosmological constant can be modelled by certain classes of nonholonomic frame, metric and linear connection deformations resulting in nonhomogeneous Einstein spaces is examined in the light of the role played by topological three dimensional (3D) Taub-NUT-AdS/dS spacetimes.
description: latex 2e, 22 pages, to be published in Romanian Rep. Phys. 60 (2008)
Elucidating the Contribution of Stroke-Induced Changes to Neural Stem and Progenitor Cells Associated with a Neuronal Fate
Creators: name: Chwastek, Damian
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2021
Subjects: Stroke
Neurogenesis
Single Cell RNA Sequencing

description: Following stroke there is a robust increase in the proliferation of neural stem and progenitor cells (NSPCs) that ectopically migrate from the subventricular zone (SVZ) to surround the site of damage induced by stroke (infarct). Previous in vivo studies by our lab and others have shown that a majority of migrating NSPCs when labelled prior to stroke become astrocytes surrounding the infarct. In contrast, our lab has shown that the majority of NSPCs when labelled after stroke become neurons surrounding the infarct. This thesis aims to elucidate the contributions of intrinsic changes that can alter the temporal fate of the NSPCs. The NSPCs were fate mapped in this study using the nestin-CreERT2 mouse model and strokes were induced using the photothrombosis model within the cortex. In alignment with our previous findings, fate-mapping the NSPCs using a single injection of tamoxifen treatment revealed a temporal-specific switch in neuronal fate when NSPCs were labeled at timepoints greater than 7 days following stroke. Single cell RNA sequencing and histological analysis identified significant differences in the proportion of populations of NSPCs and their progeny labeled at the SVZ in the absence or presence of a stroke. NSPCs labelled after stroke were comprised of a reduced proportion of quiescent neural stem cells alongside an accompanied increase in doublecortin-expressing neuroblasts. The RNA transcriptional profile of the NSPCs labelled also revealed NSPCs and their progeny labeled after stroke had an overall enrichment for a neuronal transcription profile in all of the labeled cells with a reduction in astrocytic gene expression in quiescent and activated neural stem cells. Furthermore, we highlight the presence of perturbed transcriptional dynamics of neuronal genes, such as doublecortin following stroke. Altogether, our study reveals following a stroke there is a sustained intrinsic regulated neuronal-fated response in the NSPCs that reside in the SVZ that may not be exclusive from extrinsic regulation. This work raises the challenge to learn how to harness the potential of this response to improve recovery following stroke through examining their contributions to recovery.
Conflict management in BC provincial parks: a case study of mountain biking in Garibaldi Park
Creators: name: Thompson, Paul David
Publisher: name: University of British Columbia
Year: 2009

description: At the same time resources are becoming more scarce there is an increase in the use of parks, wilderness and other natural environments for recreational purposes. This is evident in British Columbia where much of provincial parks planning is concerned with the accommodation of an ever increasing diversity of outdoor recreation activities. For a variety of reasons the people engaged in those activities do not always get along therefore resolving these social conflicts is becoming an ever larger part of recreation resource planners’ and managers’ jobs. The problem with conflict management in outdoor recreation is that the methods which are commonly used do not address the sources of conflict. Even though it is the recreationists who are experiencing conflict the focus remains on managing the resource. The traditional conflict management prescription is to separate activities that are considered to be incompatible. This action is necessary in some cases but it can often exacerbate the conflict. Since the reasons for conflict are largely sociological and psychological it is necessary that the groups in conflict get together to find a solution. Conflict management methods based on the spatial separation of activities that do not include this step will not be as effective as those that do. This thesis establishes a number of weaknesses in activity based conflict prevention by examining both the sources of conflict in outdoor recreation and the methods of conflict management which are traditionally used. These weaknesses are then considered in a two part examination. First, the conflict management policies of BC Parks are examined. Second, a closer look is taken at a specific conflict issue: the Garibaldi Master Plan and its treatment of the issue of mountain biking in the park. In general, without a formal conflict management policy in place users of BC’S provincial parks who find themselves in conflict with other users can not be assured that the sources of conflict will be addressed. In the Garibaldi Park case study, BC Parks focused on managing the resource rather than managing the social conflict that was occurring. They took steps in the right direction but failed to take the most crucial step which is getting the parties in conflict talking to each other. Even though the sources of conflict are recognized they are not the prime consideration in resolving the conflict.
À la recherche d’un modèle de justice transitionnelle efficace pour le Soudan du Sud
Creators: name: Dakuyo, Aboubacar
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2021
Subjects: Justice transitionnelle
Justice transformative
Justice pénale nationale et internationale
Justice restauratrice

description: À la suite des conflits violents qui ont eu lieu au Soudan du Sud à partir du 15 décembre 2013, il se pose la question de savoir comment construire dans le pays une paix durable tout en rendant justice aux milliers de victimes des conflits? Pour répondre à cette interrogation, cette thèse doctorale fait recours à la discipline de la justice transitionnelle. Toutefois, en raison des limites constatées dans la mise en œuvre de ce processus dans de nombreux pays ces dernières années, la thèse adopte la théorie d’une “approche transformative de la justice transitionnelle” pour examiner dans quelle mesure le pays pourrait faire une transition réussie vers la paix durable. Ainsi, l’étude soutient que pour mieux appréhender les causes des conflits post-décembre 2013, il faut d’abord comprendre le contexte historique et socio-politique des conflits Nord-Sud au Soudan. Elle souligne que depuis la période coloniale, la région du Sud a été l’objet violences structurelles continues se manifestant par l’exploitation économique et politique, le sous-développement, l’extrême centralisation du pouvoir entre les mains d’une minorité, la marginalisation et l’exclusion du Sud de la gouvernance du Soudan, le non-respect des accords de paix, l’instrumentalisation de la religion et de l’ethnicité à ses fins politiques, etc. L’étude révèle que toutes ces violences ont façonné le Soudan du Sud pour donner lieu – en raison des compétitions pour le contrôle du pouvoir politique et économique dans le nouvel État – aux violences graves que le pays a connu à partir de décembre 2013. Ensuite, pour la mise en œuvre de l’“approche transformative de la justice transitionnelle” dans le pays, l’étude soutient qu’en reconceptualisant les mécanismes ordinaires de la justice transitionnelle, ceux-ci peuvent jouer un rôle important dans la transformation du contexte conflictuel pour y édifier une paix durable.
MAXIPOL: Data Analysis and Results
Creators: name: Wu, J. H. P.
name: Zuntz, J.
name: Abroe, M. E.
name: Ade, P. A. R.
name: Bock, J.
name: Borrill, J.
name: Collins, J.
name: Hanany, S.
name: Jaffe, A. H.
name: Johnson, B. R.
name: Jones, T.
name: Lee, A. T.
name: Matsumura, T.
name: Rabii, B.
name: Renbarger, T.
name: Richards, P. L.
name: Smoot, G. F.
name: Stompor, R.
name: Tran, H. T.
name: Winant, C. D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results from and the analysis of data from MAXIPOL, a balloon-borne experiment designed to measure the polarization in the Cosmic Microwave Background (CMB). MAXIPOL is the first CMB experiment to obtain results using a rotating half-wave plate as a rapid polarization modulator. We report results from observations of a sky area of 8 deg^2 with 10-arcmin resolution, providing information up to l~700. We use a maximum-likelihood method to estimate maps of the Q and U Stokes parameters from the demodulated time streams, and then both Bayesian and frequentist approaches to compute the EE, EB, and BB power spectra. Detailed formalisms of the analyses are given. A variety of tests show no evidence for systematic errors. The Bayesian analysis gives weak evidence for an EE signal. The EE power is 55^{+51}_{-45} μK^2 at the 68% confidence level for l=151-693. Its likelihood function is asymmetric and skewed positive such that with a uniform prior the probability of a positive EE power is 96%. The powers of EB and BB signals at the 68% confidence level are 18^{+27}_{-34} μK^2 and -31^{+31}_{-19} μK^2 respectively and thus consistent with zero. The upper limit of the BB-mode at the 95% confidence level is 9.5 μK. Results from the frequentist approach are in agreement within statistical errors. These results are consistent with the current concordance LCDM model.
description: 12 pages, 10 figures, 5 tables; ApJ published
Higher-spin particles at high-energy colliders
Creators: name: Criado, Juan Carlos
name: Djouadi, Abdelhak
name: Koivunen, Niko
name: Raidal, Martti
name: Veermäe, Hardi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using an effective field theory approach for higher-spin fields, we derive the interactions of colour singlet and electrically neutral particles with a spin higher than unity, concentrating on the spin-3/2, spin-2, spin-5/2 and spin-3 cases. We compute the decay rates and production cross sections in the main channels for spin-3/2 and spin-2 states at both electron-positron and hadron colliders, and identify the most promising novel experimental signatures for discovering such particles at the LHC. The discussion is qualitatively extended to the spin-5/2 and spin-3 cases. Higher-spin particles exhibit a rich phenomenology and have signatures that often resemble the ones of supersymmetric and extra-dimensional theories. To enable further studies of higher-spin particles at collider and beyond, we collect the relevant Feynman rules and other technical details.
description: Published version. 38 pages, 6 figures. Comments welcome
Gluon recombination in high parton density QCD: inclusive pion production
Creators: name: Li, Yang
name: Tuchin, Kirill
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We argue that the collinear factorization of the fragmentation functions in high energy hadron and nuclei collisions breaks down at transverse momenta kT < Qs/g due to high parton densities in the colliding hadrons and/or nuclei. We calculate, at next-to-leading order in projectile parton density and to all orders in target parton density, the double-inclusive cross section for production of a pair of gluons in the scalar J^(PC)=0^(++) channel. Using the low energy theorems of QCD we find the inclusive cross section for pi-meson production.
description: 24 pages, 5 figures
Amplitude Analysis of High Statistics Results on $γγ\toπ^+π^-$ and the Two Photon Width of Isoscalar States
Creators: name: Pennington, M. R.
name: Mori, T.
name: Uehara, S.
name: Watanabe, Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We perform an Amplitude Analysis of the world published data on $γγ\toπ^+π^-$ and $π^0π^0$. These are dominated in statistics by the recently published results from Belle on the charged pion channel. Nevertheless, having only limited angular information, a range of solutions remain possible. We present two solutions with $Γ(f_0(980)\toγγ) = 0.42$ and 0.10 keV, and $Γ(f_2(1270)\toγγ) = 3.14 \pm 0.20$ and $3.82 \pm 0.30$ keV, respectively: the former being the solution favoured by $χ^2$, the latter at the edge of acceptability. Models of the structure of the $f_0(980)$ predict two photon widths to be between 0.2 and 0.6 keV, depending on its composition as mainly ${\bar K}K$, ${\bar s}s$ or ${\bar{qq}}qq$. Presently available data cannot yet distinguish unambiguously between these predictions. However, we show how forthcoming results on $γγ\toπ^0π^0$ can not only discriminate between, but also refine, these classes of partial wave solutions.
description: 34 pages, 23 figures. Version with minor changes to be published in European Journal of Physics C
Simulations of Magnetically-Driven Supernova and Hypernova Explosions in the Context of Rapid Rotation
Creators: name: Burrows, Adam
name: Dessart, Luc
name: Livne, Eli
name: Ott, Christian D.
name: Murphy, Jeremiah
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present here the first 2D rotating, multi-group, radiation magnetohydrodynamics (RMHD) simulations of supernova core collapse, bounce, and explosion. In the context of rapid rotation, we focus on the dynamical effects of magnetic stresses and the creation and propagation of MHD jets. We find that a quasi-steady state can be quickly established after bounce, during which a well-collimated MHD jet is maintained by continuous pumping of power from the differentially rotating core. If the initial spin period of the progenitor core is $\sles$ 2 seconds, the free energy reservoir in the secularly evolving protoneutron star is adequate to power a supernova explosion, and may be enough for a hypernova. The jets are well collimated by the infalling material and magnetic hoop stresses, and maintain a small opening angle. We see evidence of sausage instabilities in the emerging jet stream. Neutrino heating is sub-dominant in the rapidly rotating models we explore, but can contribute 10$-$25% to the final explosion energy. Our simulations suggest that even in the case of modest or slow rotation, a supernova explosion might be followed by a secondary, weak MHD jet explosion, which, because of its weakness may to date have gone unnoticed in supernova debris. Furthermore, we suggest that the generation of a non-relativistic MHD precursor jet during the early protoneutron star/supernova phase is implicit in both the collapsar and "millisecond magnetar" models of GRBs. The multi-D, multi-group, rapidly rotating RMHD simulations we describe here are a start along the path towards more realistic simulations of the possible role of magnetic fields in some of Nature's most dramatic events.
description: 33 pages, including 18 color figures; accepted to the Astrophysical Journal April 23, 2007; higher-resolution figures available at http://zenith.as.arizona.edu/~burrows/mhd-sn/
Laboratory testing and investigations of delayed ettringite formation
Creators: name: Drimalas, Thanos, 1980-
Publisher: name: The University of Texas at Austin
Year: 2004
Subjects: subject: Concrete--Deterioration
subject: Concrete--Testing
subject: Mortar--Deterioration
subject: Mortar--Testing
subject: Ettringite--Texas
subject: Alkali-aggregate reactions

description: Delayed ettringite formation (DEF) in concrete structures has recently damaged structures in the state of Texas, which has caused the state to investigate this new type of premature concrete deterioration. The research described in this thesis is part of a comprehensive research project, TxDOT Project 4085. The work described in this thesis focuses primarily on DEF, but also investigates the interplay between DEF and alkali-silica reaction. Significant accelerated laboratory testing was performed, and parallel exposure blocks were cast to evaluate realistic exposure conditions. The research included materials from throughout the state of Texas. The effects of material composition and dosage on DEF were investigated, and several mitigation measures were identified that can prevent DEF-induced expansion, even when concrete is heated above 70 °C. The key findings from this research have been implemented by TxDOT in new state specifications to prevent DEF in prestressed concrete elements.
Μελέτη ατομικής περίπτωσης με παρέμβαση βελτίωσης της κοινωνικής νόησης σε παιδί με αυτιστικά συμπτώματα.
Creators: name: Λύτρα, Δέσποινα Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Παρέμβαση
Θεωρία του Νου
αυτισμός
μπαλόνια σκέψης
χειρουργικές επεμβάσεις εγκεφάλου
Intervention
Theory of Mind
autism
thought bubbles
surgery

description: Η παρούσα μελέτη εξετάζει τα οφέλη της παρέμβασης που αποσκοπεί στην βελτίωση της Θεωρίας του Νου (ΘτΝ) και κατ’ επέκτασιν της κοινωνικής νόησης σε παιδί που, έπειτα από πολλαπλές χειρουργικές επεμβάσεις στον εγκέφαλο, παρουσιάζει επιληψία και φέρει έντονα αυτιστικά συμπτώματα. Η ίδια παρέμβαση εφαρμόστηκε σε παιδιά με Ειδική Γλωσσική Διαταραχή (ΕΓΔ), επιφέροντας θετικά αποτελέσματα. Στόχος της παρέμβασης είναι η βελτίωση της Θεωρίας του Νου και η γενίκευσή της με σκοπό την ευκολότερη μετάβαση του μαθητή από την κατ’ οίκον διδασκαλία στη σχολική κοινότητα. Χορηγήθηκε παρέμβαση διάρκειας 8 εβδομάδων στην οποία χρησιμοποιήθηκαν τα μπαλόνια σκέψης (thought bubbles), μια οπτική παρουσίαση των σκέψεων των ανθρώπων. Τα αποτελέσματα από τις παρατηρήσεις του ερευνητή και των γονέων, τις αξιολογήσεις πριν, κατά τη διάρκεια, στο τέλος αλλά και μετά από 4 εβδομάδες από την ολοκλήρωση της παρέμβασης, έδειξαν βελτίωση στη Θεωρία του Νου, αλλά όχι σε όλα τα επίπεδα. Είναι μια παρέμβαση που με την καθοδήγηση ενός ειδικού, μπορεί εύκολα να χρησιμοποιηθεί από τους γονείς και το δάσκαλο της τάξης με στόχο τη γενίκευση της Θεωρίας του Νου και κατά συνέπεια την βελτίωση της κοινωνικής νόησης του ατόμου με αυτισμό, το απαραίτητο εφόδιο για μια πιο ομαλή καθημερινή ζωή. Η ενίσχυση της αυτοπεποίθησης και η σταδιακή ανεξαρτητοποίηση του ατόμου με αυτισμό αποτελούν ταυτόχρονα τον πυλώνα και το επιθυμητό αποτέλεσμα της παρατιθέμενης έρευνας, μελέτης και παρέμβασης
description: This study examines the benefits of the intervention which aims to improve the Theory of Mind (ToM) and, by extension, the social awareness of a child who, after having multiple brain surgeries, presents epilepsy and strong autistic symptoms. The same intervention was applied to children with Specific Language Impairment (SLI) and appeared to have positive outcomes. The aim of the intervention is to improve the ToM and its generalization to facilitate the student's transition from home teaching into the school community. An eight-week interference was put in practice using thought bubbles, a visual presentation of human thoughts. The results of the investigator's and parental observations, as well as the evaluations made before, during, at the end and 4 weeks after the completion of the process, showed an improvement of the ToM, but not at all levels. It is an intervention that, under the guidance of an expert, can be easily used by parents and the class teacher to generalize the ToM and consequently help the person with autism improve his / her social intellect, a vital supply for a smoother daily life, increasing self-confidence and leading to the independence of the person with autism
On the discovery of stars, quasars, and galaxies in the Southern Hemisphere with S-PLUS DR2
Creators: name: Nakazono, L.
name: de Oliveira, C. Mendes
name: Hirata, N. S. T.
name: Jeram, S.
name: Queiroz, C.
name: Eikenberry, Stephen S.
name: Gonzalez, A. H.
name: Abramo, R.
name: Overzier, R.
name: Espadoto, M.
name: Martinazzo, A.
name: Sampedro, L.
name: Herpich, F. R.
name: Almeida-Fernandes, F.
name: Werle, A.
name: Barbosa, C. E.
name: Sodré, L.
name: Lima, E. V.
name: Buzzo, M. L.
name: Cortesi, A.
name: Menéndez-Delmestre, K.
name: Akras, S.
name: Alvarez-Candal, Alvaro
name: Lopes, A. R.
name: Telles, E.
name: Schoenell, W.
name: Kanaan, A.
name: Ribeiro, T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: This paper provides a catalogue of stars, quasars, and galaxies for the Southern Photometric Local Universe Survey Data Release 2 (S-PLUS DR2) in the Stripe 82 region. We show that a 12-band filter system (5 Sloan-like and 7 narrow bands) allows better performance for object classification than the usual analysis based solely on broad bands (regardless of infrared information). Moreover, we show that our classification is robust against missing values. Using spectroscopically confirmed sources retrieved from the Sloan Digital Sky Survey DR16 and DR14Q, we train a random forest classifier with the 12 S-PLUS magnitudes + 4 morphological features. A second random forest classifier is trained with the addition of the W1 (3.4 $μ$m) and W2 (4.6 $μ$m) magnitudes from the Wide-field Infrared Survey Explorer (WISE). Forty-four percent of our catalogue have WISE counterparts and are provided with classification from both models. We achieve 95.76% (52.47%) of quasar purity, 95.88% (92.24%) of quasar completeness, 99.44% (98.17%) of star purity, 98.22% (78.56%) of star completeness, 98.04% (81.39%) of galaxy purity, and 98.8% (85.37%) of galaxy completeness for the first (second) classifier, for which the metrics were calculated on objects with (without) WISE counterpart. A total of 2,926,787 objects that are not in our spectroscopic sample were labelled, obtaining 335,956 quasars, 1,347,340 stars, and 1,243,391 galaxies. From those, 7.4%, 76.0%, and 58.4% were classified with probabilities above 80%. The catalogue with classification and probabilities for Stripe 82 S-PLUS DR2 is available for download.
description: 27 pages, 22 figures. Updated to reflect the published version. Data products are available in https://splus.cloud/ website
title: HARNESSING ARTIFICIAL INTELLIGENCE FOR LIFELONG EDUCATION: OPPORTUNITIES AND CHALLENGES
Creators: name: Puthisat NAMDECH
Publisher: name: Asian Education and Learning Review
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Artificial Intelligence
Lifelong Learning
Personalized Learning
Adaptive Learning Systems
Educational Technology

description: Asian Education and Learning Review, 3, 2, Article 4
Η ‘ρουτίνα’ στην πτέρυγα του Βρεφοκομείου ‘Αγ. Στυλιανός’: Μελέτη της καθημερινής ζωής των βρεφών και των φροντιστών τους και η σημασία της για την σωστή ψυχοκοινωνική ανάπτυξη των βρεφών
Creators: name: Κωνσταντινίδου, Μαρίνα Αναστασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Ρουτίνα ιδρύματος (βρεφοκομείου)
Ψυχοσυναισθηματική ανάπτυξη βρεφών
Επιπτώσεις ιδρυματικής περίθαλψης
Institution (nursery) routine
Psychoemotional of infants
Institutional care impact

description: Σκοπός αυτής της έρευνας είναι να μελετηθεί η καθημερινή ζωή, η ρουτίνα, των βρεφών και των βρεφοκόμων του Δημοτικού Βρεφοκομείου Θεσσαλονίκης «Άγιος Στυλιανός», και όσων άλλων εμπλέκονται σε αυτήν την καθημερινότητα, προκειμένου να συζητηθεί η σημασία της για την σωστή ψυχοσυναισθηματική, σωματική και κοινωνική ανάπτυξη των βρεφών Απώτερος στόχος της έρευνας είναι να διατυπωθούν προτάσεις που θα μπορέσουν να συντελέσουν στη βελτίωση των συνθηκών εργασίας αλλά και στην καλύτερη περίθαλψη των βρεφών και των παιδιών ώστε να αποφευχθούν οι επιπτώσεις της ιδρυματικής ζωής. Η έρευνα που πραγματοποιήθηκε στο Δημοτικό Βρεφοκομείο Θεσσαλονίκης ο «Άγιος Στυλιανός» ήταν ποιοτική, φαινομενολογικού τύπου. Η φαινομενολογικού τύπου έρευνα περιγράφει κοινωνικά και ψυχολογικά φαινόμενα με σκοπό την κατανόηση τους. Μελετά και εξετάζει πώς ένα άτομο βιώνει τις εμπειρίες της ζωής του (Ιωσηφίδης, 2003, σ.σ.86-88). Τα μεθοδολογικά εργαλεία που χρησιμοποιήθηκαν ήταν η συμμετοχική παρατήρηση, και οι συνεντεύξεις ημι-δομημένου τύπου σε ομάδες (focus group) κυρίως των δύο ατόμων υπό μορφή συζήτησης.
description: The purpose of this paper is to study the routine of the Municipal Nursery of Thesssaloniki "Aghios Stylianos". Specifically, the daily life of infants and staff and any others implicated in the daily schedule, in order to discuss its significance for the proper psychoemotional, physical and social development of the infants. The main objective of this study is to generate suggestions that could contribute to the improvement of the working conditions, as well as to the better care of infants and children such that the impact of institutional life be avoided. The study that has been performed in the Municipal Nursery of Thessaloniki "Aghios Stylianos" was a qualitative, phenomenological research. This type of research describes social and psychological phenomena in order to comprehend them. It is about investigating the means by which a person perceives his/her life experiences (Iosifidis, 2003, p.p.86-88). The methodological tools used were: participant observation and focus group semi-structured interviews.
Exploring Avenues Beyond Revised DSD Functionals: II. Random-Phase Approximation and scaled MP3 corrections
Creators: name: Santra, Golokesh
name: Semidalas, Emmanouil
name: Martin, Jan M. L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: For revDSD double hybrids, the Görling-Levy second-order perturbation theory component is an Achilles' Heel when applied to systems with significant near-degeneracy ("static") correlation. We have explored its replacement by the direct random phase approximation (dRPA), inspired by the SCS-dRPA75 functional of Kállay and coworkers. The addition to the final energy of both a D4 empirical dispersion correction, and of a semilocal correlation component lead, to significant improvements, with DSD-PBEdRPA75-D4 approaching the performance of revDSD-PBEP86-D4 and the Berkeley $ω$B97M(2). This form appears to be fairly insensitive to the choice of semilocal functional, but does exhibit stronger basis set sensitivity than the PT2-based double hybrids (due to much larger prefactors for the nonlocal correlation). As an alternative, we explored adding an MP3-like correction term (in a medium-sized basis sets) to a range-separated $ω$DSD-PBEP86-D4 double hybrid, and found it to have significantly lower WTMAD2 (weighted mean absolute deviation) for the large and chemically diverse GMTKN55 benchmark suite; the added computational cost can be mitigated through density fitting techniques.
description: J. Phys. Chem. A 125, ASAP (2021) Creative Commons License
Black hole evolution with the BSSN system by pseudo-spectral methods
Creators: name: Tichy, Wolfgang
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a new pseudo-spectral code for the simulation of evolution systems that are second order in space. We test this code by evolving a non-linear scalar wave equation. These non-linear waves can be stably evolved using very simple constant or radiative boundary conditions, which we show to be well-posed in the scalar wave case. The main motivation for this work, however, is to evolve black holes for the first time with the BSSN system by means of a spectral method. We use our new code to simulate the evolution of a single black hole using all applicable methods that are usually employed when the BSSN system is used together with finite differencing methods. In particular, we use black hole excision and test standard radiative and also constant outer boundary conditions. Furthermore, we study different gauge choices such as $1+\log$ and constant densitized lapse. We find that these methods in principle do work also with our spectral method. However, our simulations fail after about $100M$ due to unstable exponentially growing modes. The reason for this failure may be that we evolve the black hole on a full grid without imposing any symmetries. Such full grid instabilities have also been observed when finite differencing methods are used to evolve excised black holes with the BSSN system.
description: 10 pages, 9 figures
Όψεις γονεϊκότητας στα ιδρύματα κλειστής περίθαλψης για βρέφη και νήπια. Ο ρόλος των εθελοντών στο Δημοτικό Βρεφοκομείο Θεσσαλονίκης «Ο Άγιος Στυλιανός»
Creators: name: Ανδρέογλου, Χριστέλεν Σταύρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Γονεϊκότητα
Ιδρύματα κλειστής περίθαλψης
Εθελοντισμός
Parenthood
Total institutions
Volunteering

description: Εδώ και αιώνες τα ιδρύματα κλειστής περίθαλψης για βρέφη και νήπια αποτελούν μορφή προστασίας για έναν μεγάλο αριθμό βρεφών, τα οποία για διάφορες αιτίες απομακρύνθηκαν ή αποχωρίστηκαν από τους γεννήτορες. Τα ιδρύματα αυτά καλύπτουν τον χαμένο τόπο ενός παιδιού, που είναι η αγκαλιά της μητέρας ή του πατέρα. Στην παρούσα μελέτη παρουσιάστηκαν οι έννοιες της οικογένειας, της συγγένειας, της μητρότητας και της πατρότητας, κοινωνικοί δηλαδή θεσμοί που πάσχουν για τα παιδιά που τοποθετούνται στα ιδρύματα. Καθώς επίσης οι έννοιες του γονεϊκού δεσμού και της γονεϊκότητας που διαμοιράζεται από τους γεννήτορες σε τρίτα άτομα. Ιδιαίτερη μνεία έγινε για τις επιπτώσεις της γονεϊκής αποστέρησης και της διαμονής των παιδιών σε ιδρυματικούς χώρους. Επιπλέον, προβλήθηκε η έννοια του εθελοντισμού γενικότερα και η παρουσία των εθελοντών στον τομέα της παιδικής προστασίας. Σκοπός της παρούσας εργασίας είναι η μελέτη των όψεων της γονεϊκότητας στα ιδρύματα κλειστής περίθαλψης για βρέφη και νήπια. Πιο συγκεκριμένα στόχος της έρευνας ήταν η διερεύνηση του ρόλου που αναλαμβάνουν οι εθελοντές του Δημοτικού Βρεφοκομείου Θεσσαλονίκης «Ο Άγιος Στυλιανός» απέναντι στα φιλοξενούμενα παιδιά του ιδρύματος. Προκειμένου να απαντηθούν τα ερευνητικά ερωτήματα χρησιμοποιήθηκε ως μέθοδος συλλογής δεδομένων η συμμετοχική παρατήρηση και η συνέντευξη.
description: For centuries, total institutions for infants and toddlers are a form of protection for a large number of infants, who for various reasons have been abandoned or separated from their parents. These institutions cover the lost place of a child, which is the mother’s or father's embrace. The present study presented the concepts of family, kinship, maternity and paternity, social status that suffer for children placed in institutions. As well as the concepts of attachment and parenthood shared by parents to third parties. Particular mention was made of the implications of parental deprivation and the placement of children in institutional settings. In addition, the concept of volunteering in general and the presence of volunteers in the field of child protection were also presented. The purpose of this paper is to study the dimensions of parenthood in totals institutions for infants and toddlers. More specifically, the aim of the research was to investigate the role played by the volunteers of the Public Orphanage of Thessaloniki «Agios Stylianos» towards the guests children of the institution. In order to answer the research questions, the participant observation and the interviewing was used as a data collection method.
Gendered mobility: one woman’s story
Creators: name: Fowler, Robin Ramsay
Publisher: name: University of British Columbia
Year: 2009

description: The turnings, experiences and adaptations of one woman’s evolving life history show the degree to which mobility can be achieved and, when necessary, camouflaged in a variety of situations where the physical and ideological movement of women is severely constrained. As a thematic device, gendered mobility offers a useful lens through which gendered experience can be viewed. The experiences of a woman living in a conservative Muslim community in South Asia frame a vocation of mobility and mobilisation. The story reveals a situated and subjective perspective recorded through the methods of life history and participant observation. From an empowered sense of self, one woman identifies meaning and seeks to empower others through her vision and the processes of community development.
Probing QCD dynamics in two-photon interactions at high energies
Creators: name: Goncalves, V. P.
name: Machado, M. V. T.
name: Sauter, W. K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper the two-photon interactions at high energies are investigated considering different approaches for the QCD dynamics. In particular, we calculate the $γ^* γ^*$ total cross section in different theoretical approches and present a comparison among the predictions of the BFKL dynamics at leading and next-to-leading order with those from saturation physics. We analyze the possibility that the future linear colliders could discriminate between these different approaches.
description: 14 pages, 2 figures. Version to be published in Journal of Physics G: Nuclear and Particle Physics
Introduction to Ann-categories
Creators: name: Nguyen, Tien Quang
Publisher: name: arXiv
Year: 2007
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18D10 (Primary), 16E40 (Secondary)

description: In this paper, we present new concepts of Ann-categories, Ann-functors, and a transmission of the structure of categories based on Ann-equivalences. We build Ann-category of Pic-funtors and prove that each Ann-category can be faithfully embedded into an almost strictly Ann-category.
description: 11 pages
Exploring Avenues Beyond Revised DSD Functionals: I. range separation, with xDSD as a special case
Creators: name: Santra, Golokesh
name: Cho, Minsik
name: Martin, Jan M. L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We have explored the use of range separation as a possible avenue for further improvement on our revDSD minimally empirical double hybrid functionals. Such $ω$DSD functionals encompass the XYG3 type of double hybrid (i.e., xDSD) as a special case for $ω$->0. As in our previous studies, the large and chemically diverse GMTKN55 benchmark suite was used for evaluation. Especially when using the D4 rather than D3BJ dispersion model, xDSD has a slight performance advantage in WTMAD2. As found previously, PBEP86 is the winning combination for the semilocal parts. xDSDn-PBEP86-D4 marginally outperforms the previous 'best in class' $ω$B97M(2) Berkeley double hybrid, but without range separation and using fewer than half the number of empirical parameters. Range separation turns out to offer only marginal further improvements on GMTKN55 itself. While $ω$B97M(2) still yields better performance for small-molecule thermochemistry, this is outweighed in WTMAD2 by superior performance of the new functionals for conformer equilibria. Results for two external test sets with pronounced static correlation effects may indicate that range-separated double hybrids are more resilient to such effects.
description: J. Phys. Chem. A 125, ASAP (2021) Creative Commons License (1st of two papers back-to-back)
Curvature-induced quantum behaviour on a helical nanotube
Creators: name: Atanasov, Victor
name: Dandoloff, Rossen
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the effect of curvature on the behaviour of a quantum particle bound to move on a surface shaped as a helical tube. We derive and discuss the governing Schrödinger equation and the corresponding quantum effective potential which is periodic and points to the helical configuration as more energetically favorable as compared to the straight tube. The exhibited periodicity also leads to energy band structure of pure geometrical origin.
Spatiotemporal Vortex Pulses: Angular Momenta and Spin-Orbit Interaction
Creators: name: Bliokh, Konstantin Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Recently, spatiotemporal optical vortex pulses carrying a purely transverse intrinsic orbital angular momentum were generated experimentally [{\it Optica} {\bf 6}, 1547 (2019); {\it Nat. Photon.} {\bf 14}, 350 (2020)]. However, an accurate theoretical analysis of such states and their angular-momentum properties remains elusive. Here we provide such analysis, including scalar and vector spatiotemporal Bessel-type solutions as well as descrption of their propagational, polarization, and angular-momentum properties. Most importantly, we calculate both local densities and integral values of the spin and orbital angular momenta, and predict observable spin-orbit interaction phenomena related to the coupling between the trasnverse spin and orbital angular momentum. Our analysis is readily extended to spatiotemporal vortex pulses of other natures (e.g., acoustic).
description: 6 pages, 5 figures, to appear in Phys. Rev. Lett
Numerical Investigations of Oscillons in 2 Dimensions
Creators: name: Hindmarsh, Mark
name: Salmi, Petja
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Oscillons, extremely long-living localized oscillations of a scalar field, are studied in theories with quartic and sine-Gordon potentials in two spatial dimensions. We present qualitative results concentrating largely on a study in frequency space via Fourier analysis of oscillations. Oscillations take place at a fundamental frequency just below the threshold for the production of radiation, with exponentially suppressed harmonics. The time evolution of the oscillation frequency points indirectly to a life time of at least 10 million oscillations. We study also elliptical perturbations of the oscillon, which are shown to decay. We finish by presenting results for boosted and collided oscillons, which point to a surprising persistence and soliton-like behaviour.
description: Matches the published version (12 pages, 34 figures)
Global well-posedness for a Smoluchowski equation coupled with Navier-Stokes equations in 2D
Creators: name: Constantin, Peter
name: Masmoudi, Nader
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q30

description: We prove global existence for a nonlinear Smoluchowski equation (a nonlinear Fokker-Planck equation) coupled with Navier-Stokes equations in two dimensions. The proof uses a deteriorating regularity estimate and the tensorial structure of the main nonlinear terms.
Η (μη) χειροτέρευση της θέσης του κατηγορουμένου – αρ. 470 ΚΠΔ
Creators: name: Περράκης, Γεώργιος Μιχαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Άμεση Χειροτέρευση
Έμμεση Χειροτέρευση
Η αρχή της μη χειροτέρευσης της θέσης του κατηγορουμένου
Direct deterioration
Indirect deterioration
The principle of non-deteriorating position of the accused

description: Η αρχή της μη χειροτέρευσης θέσης του κατηγορουμένου κατοχυρώνεται στο ποινικό δικονομικό μας σύστημα και καθιερώνεται ρητά στο άρθρο 470 εδ α ΚΠΔ. Η απαγόρευση της αρχής χωρίζεται σε απόλυτη και σχετική, ενώ δεν υπάρχει αμφιβολία, τόσο από τη νομολογία όσο και από τη θεωρία πως η διατύπωση του άρθρου 470 ΚΠΔ έχει χαρακτήρα απόλυτο και όχι σχετικό. Άμεση χειροτέρευση έχουμε στην περίπτωση της πραγματικής χειροτέρευσης, με επιβολή αυξημένων ποινικών κυρώσεων, ενώ έμμεση χειροτέρευση θεωρείται η νομική χειροτέρευση, απόδοση βαρύτερης ενοχής. Σχετικά με την αντικειμενική έκταση της αρχής, αυτή συναντάται τόσο στα ένδικα μέσα, όσο και στα ένδικα βοηθήματα και στα οιονεί ένδικα μέσα. Σημειωτέον, ότι η αρχή εφαρμόζεται μόνο στα ένδικα μέσα κατά αποφάσεων και όχι σε αυτά που ασκήθηκαν κατά βουλεύματος, καθώς επίσης εφαρμογή έχει και στις αθωωτικές αποφάσεις που αθωώνουν για έμπρακτη μετάνοια ή με αιτιολογία που θίγει την υπόληψη του κατηγορουμένου. Τέλος, η αρχή της μη χειροτέρευσης θέσης του κατηγορουμένου υιοθετείται και στο ένδικο μέσο της αναίρεσης και από το δικαστήριο παραπομπής κατ’ άρθρο 524 παρ. 2 ΚΠΔ
description: The principle of non-deteriorating position of the accused enshrined in our criminal procedural system and explicitly enshrined in article 470 subparagraph a of the criminal procedure code. The prohibition in principle divided into absolute and relative, and there is no doubt, both of the case and from the theory that the wording of article 470 of criminal procedure code has character absolute and not relative. Direct deterioration we have in the case of real deterioration by imposing increased penalties, while indirect deterioration considered legal impairment, heaviest guilt performance. As to the subjective scope of the principle, this includes the accused and for that person brought an appeal, the civil liability and the civil claimant. Regarding, the objective scope of the authority, is found both in the appeal, the remedies and quasi remedies. It should be noted that the principle applies only to appeals against decisions and not those brought by decree, as well as implementation has also acquittals which acquitted immigration and for practical reasons or which affect the reputation of the accused. Finally, the principle of non-deteriorating position of the accused adopted the legal remedy of appeal and the court of reference in article 524 par. 2 of the criminal procedure code
Are disk galaxies the progenitors of giant ellipticals?
Creators: name: Naab, Thorsten
name: Ostriker, Jeremiah P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A popular formation scenario for giant elliptical galaxies proposes that they might have formed from binary mergers of disk galaxies. Difficulties with the scenario that emerged from earlier studies included providing the necessary stellar mass and metallicity, maintaining the tight color-magnitude relation and avoiding phase space limits. In this paper we revisit the issue and put constraints on the binary disc merger scenario based on the stellar populations of disc galaxies. We draw the following conclusions: Low redshift collisionless or gaseous mergers of present day Milky Way like disc galaxies do not form present day elliptical galaxies. Binary mergers of the progenitors of present day Milky Way like disc galaxies can have evolved into intermediate mass elliptical galaxies ($M < M_*$) if they have merged earlier than $\approx$ 3-4 Gyrs ago. Assuming that most present day disk galaxies formed in a similar way to the Milky Way model presented here, more massive giant ellipticals in general can not have formed from binary mergers of the progenitors of present day disc galaxies. A major reason for these conclusions is that the mass in metals of typical disk galaxy is approximately a factor of 4-8 smaller than the mass in metals of a typical early-type galaxy and this ratio grows to larger values with increasing redshift.
description: accepted by ApJ, to appear in Jan 2009
Three-loop color-kinematics duality: A 24-dimensional solution space induced by new generalized gauge transformations
Creators: name: Lin, Guanda
name: Yang, Gang
name: Zhang, Siyuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We obtain full-color three-loop three-point form factors of the stress-tensor supermultiplet and also of a length-3 half-BPS operator in N=4 SYM based on the color-kinematics duality and on-shell unitarity. The integrand results are verified by all planar and non-planar unitarity cuts, and they satisfy the minimal power-counting of loop momenta and diagrammatic symmetries. Interestingly, these three-loop solutions, while manifesting all dual Jacobi relations, contain a large number of free parameters; in particular, there are 24 free parameters for the form factor of stress-tensor supermultiplet. Such degrees of freedom are due to a new type of generalized gauge transformation associated with the operator insertion for form factors. We also perform numerical integration and obtain consistent full-color infrared divergences and the known planar remainder. The form factors we obtain can be understood as the N=4 SYM counterparts of three-loop Higgs plus three-gluon amplitudes in QCD and are expected to provide the maximally transcendental parts of the latter.
description: 6 pages, 8 figures, 6 pages of appendix; v2: minor changes, references added, numerical data updated
Constructing the Critical Curve for the Two-Layer Potts Model Using Cellular Automata
Creators: name: Asgari, Yazdan
name: Ghaemi, Mehrdad
Publisher: name: arXiv
Year: 2006
Subjects: subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: The critical points of the 3-states two-layer Potts model on square lattice for different interlayer couplings (Kx, Ky,and Kz) are calculated with high precision using probabilistic cellular automata with Glauber algorithm, where Kx and Ky are the nearest-neighbor interactions within each layer in the x and y directions, respectively and Kz is the interlayer coupling. The obtained results are 0.726, 0.807, 0.928, 0.987 and 1.00 for the cases Kz per Kx = 1, 0.5, 0.1, 0.01 and 0.001, respectively. Then, the critical curve has been constructed for this model.
description: 15 pages, 6 figures
The Isotropic to Nematic Liquid Crystalline Phase Transition of F-actin Varies from Continuous to First Order
Creators: name: Viamontes, Jorge
name: Oakes, Patrick W.
name: Tang, Jay X.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We report that the properties of the isotropic to nematic liquid crystalline phase transition of F-actin depend critically on the average filament length. For average filament lengths longer than 2 $μ$m, we confirm previous findings that the phase transition is continuous in both alignment and concentration. For average filament lengths shorter than 2 $μ$m, we show for the first time a first order transition with a clear discontinuity in both alignment and concentration. Tactoidal droplets of coexisting isotropic and nematic phases, differing in concentration by approximately 30%, form over the course of hours and appear to settle into near equilibrium metastable states.
description: 4 pages, 3 figures