cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ανακάλυψη ανθρωπίνων σχέσεων στα κοινωνικά δίκτυα μέσω της τεχνολογίας Grid:
Creators: name: Μελισσίδης, Χρήστος Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Ανθρώπινες σχέσεις
Κοινωνικά δίκτυα
Εξόρυξη δεδομένων
Στοχευμένη διαφήμιση
Υπηρεσίες grid
Grid computing
Human relationships
Social networks
Data mining
Targeted advertising
Grid service

description: Η διπλωματική αυτή επικεντώνεται στην ανακάλυψη ανθρωπίνων σχέσεων από βάσεις δεδομένων κοινωνικών δικτύων, χρησιμοποιώντας την τεχνολογία Grid Computing. Επιπλέον, εξερευνεί το πεδίο της στοχευμένης διαφήμισης σε συγκεκριμένες ομάδες ανθρώπων με την χρήση των ανακαλυφθέντων δεδομένων ανθρωπίνων σχέσεων. Για αυτό τον σκοπό, προτείνουμε μία υπηρεσία grid η οποία δύναται να ψάχνει για άτομα σύμφωνα με συγκεκριμένα κριτήρια, τα οποία καθορίζονται από τον χρήστη της υπηρεσίας. Η υπηρεσία αυτή έχει την δυνατότητα εύρεσης και απεικόνισης όχι μόνο των ατόμων που ικανοποιούν τα δοθέντα κριτήρια, αλλά και προσώπων που συνδέονται με άτομα αυτά με διάφορους τρόπους. Επίσης, αναγνωρίζει άτομα και ομάδες ανθρώπων με κοινά ενδιαφέροντα και έπειτα να εφαρμόζει τεχνικές στοχευμένης διαφήμισης από το ίδιο το σύστημά της. Για να παρουσιαστεί η λειτουργία της προτεινόμενης υπηρεσίας grid, αναπτύχθηκε μία εφαρμογή που μπορεί να προσομοιώσει τις λειτουργίες που θα είχε η υπηρεσία.
description: This thesis focuses on the discovery of human relationships in Social Networking databases by using the Grid Computing technology. Furthermore, it explores the field of targeted advertising in specific groups of people by using the discovered human relationship data. For these purposes, we propose a grid service that searches for people according to criteria that are specified by the user. This service is able to find and present not only individuals that match these criteria, but also people that are related to these individuals in some way. Also, it has the ability to identify people and groups with common interests and activities and therefore, apply targeted advertising techniques through the same system. In order to demonstrate the proposal, a web-based application has been developed. This application is able to simulate the functionality that the proposed grid service would have.
An Extended Huckel Theory based Atomistic Model for Graphene Nanoelectronics
Creators: name: Raza, Hassan
name: Kan, Edwin C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An atomistic model based on the spin-restricted extended Huckel theory (EHT) is presented for simulating electronic structure and I-V characteristics of graphene devices. The model is applied to zigzag and armchair graphene nano-ribbons (GNR) with and without hydrogen passivation, as well as for bilayer graphene. Further calculations are presented for electric fields in the nano-ribbon width direction and in the bilayer direction to show electronic structure modification. Finally, the EHT Hamiltonian and NEGF (Nonequilibrium Green's function) formalism are used for a paramagnetic zigzag GNR to show 2e2/h quantum conductance.
description: 5 pages, 8 figures
Revealing the Impact of Quasar Luminosity on Giant Ly$α$ Nebulae
Creators: name: Mackenzie, Ruari
name: Pezzulli, Gabriele
name: Cantalupo, Sebastiano
name: Marino, Raffaella A.
name: Lilly, Simon
name: Muzahid, Sowgat
name: Matthee, Jorryt
name: Schaye, Joop
name: Wisotzki, Lutz
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the results from a MUSE survey of twelve $z\simeq3.15$ quasars, which were selected to be much fainter (20
description: Accepted to MNRAS. 17 pages, 7 figures
On the dynamics of curved dislocation ensembles
Creators: name: Groma, István
name: Ispánovity, Péter Dusán
name: Hochrainer, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: To develop a dislocation-based statistical continuum theory of crystal plasticity is a major challenge of materials science.During the last two decades such a theory has been developed for the time evolution of a system of parallel edge dislocations. The evolution equations were derived by a systematic coarse-graining of the equations of motion of the individual dislocations and later retrieved from a functional of the dislocation densities and the stress potential by applying the standard formalism of phase field theories. It is, however, a long standing issue if a similar procedure can be established for curved dislocation systems. An important prerequisite for such a theory has recently been established through a density-based kinematic theory of moving curves. In this paper, an approach is presented for a systematic derivation of the dynamics of systems of curved dislocations in a single slip situation. In order to reduce the complexity of the problem a dipole like approximation for the orientation dependent density variables is applied. This leads to a closed set of kinematic evolution equations of total dislocation density, the GND densities, and the so-called curvature density. The analogy of the resulting equations with the edge dislocation model allows one to generalize the phase field formalism and to obtain a closed set of dynamic evolution equations.
Universal behavior of internal friction in glasses below T : anharmonicity vs relaxation
Creators: name: Pelous, Jacques
name: Levelut, Claire
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Comparison of the internal friction at hypersonic frequencies between a few K and the glass transition temperature Tg for various glasses brings out general features. At low temperature, internal friction is only weakly dependent on the material. At high temperature but still below Tg the internal friction for strong glasses shows a T-independent plateau in a very wide domain of temperature; in contrast, for fragile glass, a nearly linear variation of internal friction with T is observed. Anharmonicity appears dominant over thermally activated relaxational processes at high temperature.
description: accepted in Physical Review B
SPORT IS THE GUARANTEE OF A HEALTHY LIFE
Creators: name: Abdullaev, Umidjon
name: Nishonov, Shuhratjon
Publisher: name: Zenodo
Year: 2024

description: This article contains information about the fact that engaging in sports, physical education, and maintaining a healthy lifestyle is a guarantee of health. It is worth noting that the second direction of the five important initiatives put forward by the head of our state - physical training of young people and creation of necessary conditions for them to show their abilities in the field of sports, paves the way for mass sports events in the coming years.
Neutrino mass hierarchy and $θ_{13}$ with a magic baseline beta-beam experiment
Creators: name: Agarwalla, Sanjib Kumar
name: Choubey, Sandhya
name: Raychaudhuri, Amitava
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We underscore the physics advantage of an experiment where neutrinos produced in a beta-beam facility at CERN are observed in a large magnetized iron calorimeter (ICAL) at the India-based Neutrino Observatory (INO). The CERN-INO distance is close to the so-called "magic" baseline which helps evade some of the parameter degeneracies and allows for a better measurement of the neutrino mass hierarchy and $θ_{13}$. We expound the possibility of using radioactive $^8B$ and $^{8}Li$ as the source isotopes for the $\nue$ and $\anue$ beta-beam, respectively, and show that very good sensitivity to both the mass hierarchy and $θ_{13}$ is possible with a boost $γ$ in the 250-500 ballpark.
description: 32 pages, 21 eps figures, 5 tables, references added, version to appear in Nucl.Phys.B
Studies with tripterygium wilfordii : synthesis of diterpene analogues with potential pharmacological activity
Creators: name: Zetina-Rocha, Carlos B.
Publisher: name: University of British Columbia
Year: 2009

description: This thesis is concerned with the development of synthetic routes leading to the preparation of a family of novel diterpenoid analogues structurally related to triptolide (1), an active constituent of the Chinese herbal plant Tripterygium wilfordii. The objective was to design a methodology which could allow access to a variety of potentially active analogues, which may contribute to a better understanding of the structure-activity relationship of this family of compounds by the evaluation of their pharmacological activity. In the first part of this research two alternative short syntheses to the phenolic diterpene isotriptophenolide (71) were developed, using the readily available dehydroabietic acid (60) as starting material. Subsequently, this ring C "activated" compound (71) was used as a key intermediate from which several synthetic pathways were derived, leading to the preparation of a number of new analogues possessing several unsaturated and oxygen functionalities in rings B and C of the molecule. These derivatives comprised quinoid-type compounds such as C8-methoxylated dienones (153) and the (7,8)a-epoxy-dienone, 72. Epoxidation of the latter compound produced two novel di-epoxidized analogues. A different synthetic sequence was also developed to the corresponding (7,8)P-epoxy-isomer (73), which upon epoxidation produced a di-epoxy compound. Another series of mono-epoxidized derivatives were obtained from the 8- hydroxy-dienones 157 and 158, prepared by changing the oxidation conditions of isotriptophenolide (71). Several alternative pathways were developed to some of the key synthetic intermediates and to the epoxy-dienones 72 and 73. In the later stages of this research, a new "unified" synthetic scheme was achieved which allowed the synthesis of the analogues 72, 73,157 and 158 (and consequently their corresponding epoxidized derivatives), in a remarkably short 1 to 3-step sequence. Also, a short series of biotransformation experiments was performed by incubating the epoxydienones 72 and 73 with TRP4a cell cultures, giving several ring-B oxygenated/unsaturated derivatives of isotriptophenolide (71). A total of 15 new quinoid/epoxy analogues, belonging to three main "series" of derivatives (i.e., 8-methoxy-, (7,8)epoxy-, and 8-hydroxy-dienones) were prepared in the present research. [Chemical models]
How the breakout-limited mass in B-star centrifugal magnetospheres controls their circumstellar H-alpha emission
Creators: name: Owocki, Stanley P.
name: Shultz, Matt E.
name: ud-Doula, Asif
name: Sundqvist, Jon O.
name: Townsend, Richard H. D.
name: Cranmer, Steven R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Strongly magnetic B-type stars with moderately rapid rotation form `centrifugal magnetospheres' (CMs), from the magnetic trapping of stellar wind material in a region above the Kepler co-rotation radius. A longstanding question is whether the eventual loss of such trapped material occurs from gradual drift and/or diffusive leakage, or through sporadic `{\em centrifugal break out}' (CBO) events, wherein magnetic tension can no longer contain the built-up mass. We argue here that recent empirical results for Balmer-$α$ emission from such B-star CMs strongly favor the CBO mechanism. Most notably, the fact that the onset of such emission depends mainly on the field strength at the Kepler radius, and is largely {\em independent} of the stellar luminosity, strongly disfavors any drift/diffusion process, for which the net mass balance would depend on the luminosity-dependent wind feeding rate. In contrast, we show that in a CBO model the {\em maximum confined mass} in the magnetosphere is independent of this wind feeding rate, and has a dependence on field strength and Kepler radius that naturally explains the empirical scalings for the onset of H$α$ emission, its associated equivalent width, and even its line profile shapes. However, the general lack of observed Balmer emission in late-B and A-type stars could still be attributed to a residual level of diffusive or drift leakage that does not allow their much weaker winds to fill their CMs to the breakout level needed for such emission; alternatively this might result from a transition to a metal-ion wind that lacks the requisite Hydrogen.
description: 13 pages, 11 figures, accepted for MNRAS
Η επίδραση των πολυαμινών στην φυσιολογία νεραντζίας (Citrus aurantium L.)σε συνθήκες αλατότητας:
Creators: name: Γαλάνης, Κωνσταντίνος Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Πολυαμίνες
Αλατότητα
Εσπεριδοειδή
Polyamines
Salinity
Citrus

description: Η παρούσα μεταπτυχιακή διατριβή προσπαθεί να διερευνήσει την επίδραση της εξωγενούς προσθήκης στο θρεπτικό διάλυμα της πουτρεσκίνης (Put, 1 mM), της σπερμιδίνης (Spd, 1 mM ) και της σπερμίνης (Spm, 1 mM) στη φυσιολογία σποροφύτων νεραντζιάς (Citrus aurantium L.) που καλλιεργήθηκαν υδροπονικά για χρονικό διάστημα 15 ημερών σε συνθήκες αλατότητας (100 mM NaCl). Σε αντίθεση με τη συγκέντρωση χλωροφύλλης, ορισμένοι παράμετροι αύξησης (μήκος βλαστών, και νωπό και ξηρό βάρος φύλλων) και φυσιολογίας των φύλλων (συγκέντρωση Cl-, ρυθμός φωτοσύνθεσης) δεν επηρεάστηκαν από την εξωγενή εφαρμογή πολυαμίνων στο αλατούχο διάλυμα συγκριτικά με τη μεταχείριση NaCl. Συγκριτικά με τη μεταχείριση NaCl η εξωγενής προσθήκη πολυαμινών σε συνθήκες αλατότητας προκάλεσε την ποσοτική ισοενζυμική έκφραση της δισμουτάσης του υπεροξειδικού ανιόντος (SOD), της καταλάσης (CAT), της αναγωγάσης της γλουταθειόνης (GR), της αναγωγάσης του αφυδροασκορβικού οξέος (DHAR), και της οξειδάσης του ασκορβικού οξέος (AO), ενώ το αντίθετο συνέβη για την έκφραση της υπεροξειδάσης (POD), της υπεροξειδάσης της γουαϊακόλης (GPOD) και της υπεροξειδάσης του ασκορβικού οξέος
description: In the present study the effects of root treatments with putrescine (Put, 1 mM), spermidine (Spd, 1Mm) or spermine (Spm, 1mM) on several key components of physiology and antioxidant-related metabolism in the leaves of sour orange plants exposed to 100 mM NaCl for 15 d were examined. In most cases, the exogenously applied polyamines to salinized nutrient solution resulted in an increase in free polyamines in root and leaf tissues. Although polyamines prevented chlorophyll destruction, however it was ineffective at protecting against growth and photosynthesis reduction as well as leaf Cl- accumulation induced by NaCl. Compared with NaCl treatment, root applied polyamines under salinity induced superoxide dismutase (SOD), Catalase (CAT), glutathione reductase (GR), dehydroascorbate reductase (DHAR), and ascrobic oxidase (AO) whereas is caused the opposite effect on perioxidase (POD), guaiacol peroxidase (GPOD) and ascorbate peroxidase (APX)
Ubiquitous Molecular Outflows in z > 4 Massive, Dusty Galaxies I. Sample Overview and Clumpy Structure in Molecular Outflows on 500pc Scales
Creators: name: Spilker, Justin S.
name: Phadke, Kedar A.
name: Aravena, Manuel
name: Bethermin, Matthieu
name: Chapman, Scott C.
name: Dong, Chenxing
name: Gonzalez, Anthony H.
name: Hayward, Christopher C.
name: Hezaveh, Yashar D.
name: Jarugula, Sreevani
name: Litke, Katrina C.
name: Malkan, Matthew A.
name: Marrone, Daniel P.
name: Narayanan, Desika
name: Reuter, Cassie
name: Vieira, Joaquin D.
name: Weiss, Axel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Massive galaxy-scale outflows of gas are one of the most commonly-invoked mechanisms to regulate the growth and evolution of galaxies throughout the universe. While the gas in outflows spans a large range of temperatures and densities, the cold molecular phase is of particular interest because molecular outflows may be capable of suppressing star formation in galaxies by removing the star-forming gas. We have conducted the first survey of molecular outflows at z > 4, targeting 11 strongly-lensed dusty, star-forming galaxies (DSFGs) with high-resolution Atacama Large Millimeter Array (ALMA) observations of OH 119um absorption as an outflow tracer. In this first paper, we give an overview of the survey, focusing on the detection rate and structure of molecular outflows. We find unambiguous evidence for outflows in 8/11 (73%) galaxies, more than tripling the number known at z > 4. This implies that molecular winds in z > 4 DSFGs must have both a near-unity occurrence rate and large opening angles to be detectable in absorption. Lensing reconstructions reveal that 500pc-scale clumpy structures in the outflows are common. The individual clumps are not directly resolved, but from optical depth arguments we expect that future observations will require 50-200pc spatial resolution to do so. We do not detect high-velocity [CII] wings in any of the sources with clear OH outflows, indicating that [CII] is not a reliable tracer of molecular outflows. Our results represent a first step toward characterizing molecular outflows at z > 4 at the population level, demonstrating that large-scale outflows are ubiquitous among early massive, dusty galaxies.
description: ApJ accepted. 28 pages, 12 figures + appendix. Data and tables from Papers I and II available at https://github.com/spt-smg/publicdata
The Unorthodox Orbits of Substructure Halos
Creators: name: Ludlow, Aaron D.
name: Navarro, Julio F.
name: Springel, Volker
name: Jenkins, Adrian
name: Frenk, Carlos S.
name: Helmi, Amina
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) We use cosmological N-body simulations to study the properties of substructure halos in galaxy-sized dark matter halos. We extend prior work on the subject by considering the whole population of subhalos physically associated with the main system. These are defined as subhalos that have at some time in the past been within the virial radius of the halo's main progenitor and that have survived as self-bound entities to $z=0$. We find that this population extends beyond {\it three times} the virial radius, and contains objects on extreme orbits. We trace the origin of these unorthodox orbits to the tidal dissociation of bound groups of subhalos, which results in the ejection of some subhalos along tidal streams. Ejected subhalos are primarily low-mass systems, leading to mass-dependent biases in their spatial distribution and kinematics: the lower the subhalo mass at accretion time, the less centrally concentrated and kinematically hotter their descendant population. The bias is strongest amongst the most massive subhalos, but disappears at the low-mass end. Our findings imply that subhalos identified within the virial radius represent an incomplete census of the substructure physically related to a halo: only about {\it one half} of all associated subhalos are found today within the virial radius of a halo. These results may explain the age dependence of the clustering of low-mass halos, and has implications for (i) the interpretation of the structural parameters and assembly histories of halos neighboring massive systems; (ii) the existence of low-mass dynamical outliers in the Local Group; and (iii) the presence of evidence for evolutionary effects well outside the traditional virial boundary of a galaxy system.
description: 12 pages, 8 figures, ApJ in press
Sense current dependent coercivity and magnetization relaxation in Gd-Fe-Co Hall bar
Creators: name: Bhatt, Ramesh Chandra
name: Liao, Chun-Ming
name: Ye, Lin-Xiu
name: Hai, Ngo Trong
name: Wu, Jong-Ching
name: Wu, Te-ho
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The understanding of the characteristics of a magnetic layer in a different environment is crucial for any spintronics application. Before practical applications, thorough scrutiny of such devices is compulsory. Here we study such a potential Hall device of MgO-capped Hf/GdFeCo bilayer (FeCo-rich) for magnetization relaxation around nucleation fields at different voltage probe line widths and dc sensing currents. The device is characterized by anomalous Hall measurements in transverse and longitudinal Hall geometries for two different probe widths A (5 micrometer) and B (1 micrometer). The coercivities of the Hall loops (\r{ho}xy-H and Rxx-H) drop with increasing the sense current for both the probes. For probe B, the sharp and large drop in coercivity (\r{ho}xy-H loops) at comparatively lower sensing currents is observed, which is attributed to the negligible current shunting and presence of pinning site at B caused by the patterning process. The average domain wall velocities at various sensing currents for probe B are found to be smaller than probe A, from the transverse and longitudinal Hall geometry magnetization relaxation measurements, which agrees with pinning sites and Joule heating effect at probe B. The notch position in the pattern and the longitudinal Hall resistance curve peak shape suggest the domain wall propagation direction from probe B to probe A in the current channel. This study highlights the domain wall propagation at different nucleation fields, sensing currents, and the Hall probe aspect ratios.
description: 18 pages, 6 figures
ГЕЙМИФИКАЦИЯ В СИСТЕМЕ СОВРЕМЕННОГО ВЫСШЕГО ОБРАЗОВАНИЯ:  ТЕОРЕТИЧЕСКИЕ ОСНОВЫ И ПРАКТИЧЕСКАЯ ЗНАЧИМОСТЬ
Creators: name: ХАФИЗОВА МАШХУРА АМИНОВНА Самаркандский Государственный Медициский университет к.п.н.(PhD)  кафедры "Педагогика и психология",
name: ХАФИЗОВА МАШХУРА АМИНОВНА Самаркандский Государственный Медициский университет к.п.н.(PhD)  кафедры "Педагогика и психология",
name: САИДОВА ШАХЗОДА ШОХРУХОВНА студентка 3 курса кафедры «Клиническая психология» СамГМУ
Publisher: name: Zenodo
Year: 2024

description: Одной из актуальных проблем профессиональной подготовки в  вузах на сегодняшний день является проблема обеспечения качества образования обучающихся. В статье рассматривается феномен геймификации, аспекты интеграции игровых технологий в образовании, актуальные проблемы и перспективы развития. На основе результатов исследования раскрывается влияние геймификации на процесс обучения обучающихся по неязыковым направлениям профессиональной подготовки в вузе.

Ключевые слова: геймификация, образовательный процесс, мотивация,  преподаватель высшей школы, профессиональные компетенции
Discussion of miscellaneous topics
Creators: name: Parker, Verdena
name: Fleisher, Nicholas
name: Pycha, Anne
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-200506-06: Discussion of miscellaneous topics in English, including the Flower Dance, a story about a UFO that crashed in Hoopa Valley, and details of Verdena's first marriage.
Weak interaction corrections to hadronic top quark pair production
Creators: name: Bernreuther, Werner
name: Fuecker, Michael
name: Si, Zong-Guo
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we determine the weak-interaction corrections of order $α_s^2α$ to hadronic top-quark pair production. First we compute the one-loop weak corrections to $t \bar t$ production due to gluon fusion and the order $α_s^2α$ corrections to $t \bar t$ production due to (anti)quark gluon scattering in the Standard Model. With our previous result this yields the complete corrections of order $α_s^2α$ to $gg$, $q \bar q$, $q g$, and ${\bar q} g$ induced hadronic $t \bar t$ production with $t$ and $\bar t$ polarizations and spin-correlations fully taken into account. For the Tevatron and the LHC we determine the weak contributions to the transverse top-momentum and to the $t \bar t$ invariant mass distributions. At the LHC these corrections can be of the order of 10 percent compared with the leading-order results, for large $p_T$ and $\mtt$, respectively. Apart from parity-even $t \bar t$ spin correlations we analyze also parity-violating double and single spin asymmetries, and show how they are related if CP invariance holds. For $t$ (and $\bar t$) quarks which decay semileptonically, we compute a resulting charged-lepton forward-backward asymmetry $A_{PV}$ with respect to the $t$ ($\bar t$) direction, which is of the order of one percent at the LHC for suitable invariant-mass cuts.
description: Latex, 27 figures, 4 tables. 1 figure and 3 references added, scale of 4 figures changed, version to appear in Phys. Rev. D
Θέματα διγλωσσίας και διαπολιτισμικής εκπαίδευσης στο διαδίκτυο:
Creators: name: Μπαλτά, Κωνσταντίνα Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Διαπολιτισμική εκπαίδευση
Διγλωσσία
Είδη διγλωσσίας
Διαδίκτυο
Ιστοσελίδες
Εναλλαγή κωδίκων
Πλεονεκτήματα διγλωσσίας
Intercultural education
Bilingualism
Kinds of bilingualism
Internet
Sites
Code switching
Benefits of bilingualism

description: Η διγλωσσία και η διαπολιτισμική εκπαίδευση έχουν γίνει αντικείμενο μελέτης τα τελευταία χρόνια στην Ελλάδα, καθώς το γεγονός της, ολοένα και αυξανόμενης, εισροής μεταναστών έχει επιφέρει αλλαγές στον κοινωνικοοικονομικό ιστό, τα πολιτισμικά δεδομένα και την εκπαίδευση της χώρας. Ταυτόχρονα η ανάπτυξη των νέων τεχνολογιών και του διαδικτύου επέφερε ριζοσπαστικές αλλαγές και στον τομέα της έρευνας γενικότερα και ειδικότερα σε αυτήν για εκπαιδευτικά δεδομένα. Τα παιδιά και οι εκπαιδευτικοί χρησιμοποιούν το internet σε μεγάλο βαθμό, στο σχολείο και στο σπίτι, για την ενημέρωσή τους και τη συλλογή πληροφοριών. Η συγκεκριμένη εργασία έχει στόχο να εξετάσει και να κατηγοριοποιήσει τις ιστοσελίδες που προσφέρονται για θέματα διγλωσσίας και διαπολιτισμικής εκπαίδευσης. Για το σκοπό αυτό διαχωρίζεται σε δύο μέρη, για τα οποία χρησιμοποιείται διαφορετικός τρόπος διερεύνησης. Στο πρώτο γίνεται αναφορά σε βασικές αρχές διγλωσσίας και διαπολιτισμικής εκπαίδευσης, μέσα από την επιλογή βιβλιογραφίας. Στο δεύτερο μέρος χρησιμοποιήθηκε η μέθοδος της εξερεύνησης στο διαδίκτυο για την εύρεση ιστοσελίδων σχετικών με το θέμα. Επίσης η μέθοδος της κριτικής παρουσίασης των sites και η κατηγοριοποίησή τους σε δεδομένες κατηγορίες.
description: Bilingualism and intercultural education have been the focus of study throughout the past years in Greece due to the fact that the ever rising influx of immigrants has induced substantial changes in the socioeconomic web, the country’s education and culture. The present project aims at examining and classifying the websites that address issues on bilingualism and intercultural education. For this reason it is divided into two parts, where a different approach is followed. Regarding the first part, basic principles of bilingualism and intercultural education are stated via selected bibliography. As far as the second part is concerned, a research on the internet has taken place with the aim of locating relevant websites. Following their detection, these websites have been critically presented and classified into given categories.
Search for New Heavy Particles Decaying to Z^0 Z^0 -> eeee in p-pbar Collisions at sqrt(s) = 1.96 TeV
Creators: name: CDF Collaboration
name: Aaltonen, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report the results of a search for the anomalous production of a massive particle decaying to four electrons via two Z^0 bosons in 1.1 fb^{-1} of p-pbar collisions at sqrt(s)=1.96 TeV collected by the CDF II detector at Fermilab. We employ optimized electron identification criteria to maximize acceptance and efficiency. We estimate the backgrounds in the invariant mass range 500 - 1000 GeV/c^2 to be 0.028 +/- 0.009 (stat) +/- 0.011 (syst) events. We observe zero events in this search region. Assuming a Randall-Sundrum graviton production model, we set 95% CL limits on σtimes BF(G -> Z^0 Z^0) < 4 - 6 pb, depending on the graviton mass.
description: submitted to Phys. Rev. D
title: „Wie erforschen wir Konflikte?“ : Herausforderungen ethischer Feldforschung im Kontext von Ressourcenkonflikten
Creators: name: Engwicht, Nina
name: Hennings, Anne
name: Prause, Louisa
Publisher: name: Philipps-Universität Marburg
Year: 2019
Subjects: subject: Political science
subject: FOS: Political science
subject: Politik

description: Feldforschung in Konfliktkontexten geht mit besonderen Herausforderungen einher, wie der sensiblen Natur erhobener Daten, Sicherheitsrisiken für lokale Gemeinden, Aktivist_innen und Forscher_innen oder dem Risiko bestehende gesellschaftliche Polarisierungen zu ver-stärken und damit die Transformation von Konflikten zu erschweren. Anhand unserer For-schung über Ressourcenkonflikte wollen wir mit diesem Beitrag eine breitere Debatte zu den ethischen Herausforderungen von Feldforschung zu Konflikten im Globalen Süden im deutschsprachigen Raum anstoßen. Wie lässt sich Feldforschung in diesem Feld ethisch und nachhaltig durchführen? Wie gehen wir mit den Privilegien als weiße, europäische For-scher_innen und mit den einhergehenden Erwartungen an uns um? Wie lassen sich Prinzi-pien von Do no harm und Do good praktisch umsetzen? Wir arbeiten zunächst die englisch-sprachige Debatte auf, diskutieren daran anknüpfend kritisch unsere eigenen Erfahrungen in Kambodscha, Senegal und Sierra Leone entlang des Forschungsprozesses (Zugang zum Feld, Datenerhebung, Verwendung der Daten) und machen abschließend konkrete Vorschlä-ge, wie die Ausbildung von Nachwuchswissenschaftler_innen hinsichtlich der Vorbereitung auf die Feldforschung in Deutschland verbessert werden kann.
Ελεγχος της σύστασης ισοπρενοειδών λιπιδίων που παράγονται από το ζυμομύκητα Saccharomyces cerevisiae με έμφαση στο σχηματισμό σκουαλενίου:
Creators: name: Ναζίρη, Ελένη Χριστοδούλου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Σκουαλένιο
Εργοστερόλη
Saccharomyces cerevisiae
RP-HPLC
Squalene
Ergosterol

description: Ο έλεγχος της σύστασης ισοπρενοειδών λιπιδίων που παράγονται από το ζυμομύκητα Saccharomyces cerevisiae πραγματοποιήθηκε μετά από την ανάπτυξη κατάλληλου πρωτοκόλλου παραλαβής του ασαπωνοποίητου κλάσματος καθώς και υγροχρωματογραφικού συστήματος διαχωρισμού τους (RP-HPLC). Έμφαση δόθηκε στο σχηματισμό σκουαλενίου. Καθώς η επίδραση του διαθέσιμου οξυγόνου στη μικροβιακή ανάπτυξη και στην απόδοση της βιοδιεργασίας σε σκουαλένιο κρίνεται σημαντική, έγινε συστηματική παρακολούθηση των ποιοτικών και ποσοτικών μεταβολών της σύστασης του ασαπωνοποίητου κλάσματος του ενδοκυτταρικού λίπους των δειγμάτων βιομάζας που είχαν παραχθεί κάτω από διαφορετικές συνθήκες αερισμού (αερόβια και ημιαερόβια βιοδιεργασία) των εμπορικών στελεχών ΒΥ4741 και EGY48. Η αερόβια βιοδιεργασία ευνόησε μεν την ανάπτυξη των στελεχών και το σχηματισμό εργοστερόλης, δεν ήταν όμως κατάλληλη για το σχηματισμό σκουαλενίου. Η ημιαερόβια βιοδιεργασία οδήγησε σε σημαντική συσσώρευση σκουαλενίου στα κύτταρα των δύο στελεχών, με παράλληλη μείωση του σχηματισμού εργοστερόλης. Η μέγιστη απόδοση σκουαλενίου στα κύτταρα των στελεχών BY4741 και EGY48 ήταν αντιστοίχως 2959 και 2087 μg/L υγρού υποστρώματος και θεωρήθηκε ανταγωνιστική εκείνων που αναφέρονται στη βιβλιογραφία
description: The examination of isoprenoid lipid composition produced by Saccharomyces cerevisiae was carried out after the development of an appropriate protocol for the isolation of the unsaponified fraction as well as a liquid chromatographic separation system (RP-HPLC). Emphasis was given to the formation of squalene. As the effect of oxygen availability is crucial for the microbial growth and squalene yield its effect on intracellular lipid composition produced under different conditions of aeration (aerobic and semiaerobic bioprocess) by the commercial strains BY4741 and EGY48 was monitored qualitatively and quantitatively. The aerobic bioprocess favored the development of both strains and the formation of ergosterol, but it was not suitable for squalene formation. The semiaerobic bioprocess resulted in significant accumulation of squalene in both yeast cells, with parallel reduction of ergosterol content. Maximum squalene yield was 2959 μg/L of culture medium for BY4741 and 2087 μg/L of culture medium for EGY48 and was considered competitive compared to those mentioned in literature.
ШАҲАР ЖАМОАТ ТРАНСПОРТИ ИНВЕСТИЦИОН ЖОЗИБАДОРЛИГИНИ ОШИРИШ МУАММОЛАРИ
Creators: name: Тоғаев, Ғолибжон
Publisher: name: Zenodo
Year: 2024

description: Ўзбекистон Республикаси Президентининг 2023 йил 16 февралдаги “Жамоат транспорти тизимини ислоҳ қилиш чора-тадбирлари тўғрисида”ги ПҚ-59-сон Қарори билан мунтазам шаҳар автобус йўналишларида чекланган тарифлар бўйича йўловчилар ташишни брутто-шартнома асосида ташкил этиш ва молиялаштириш тизими жорий этилди.
Ubiquitous Molecular Outflows in z > 4 Massive, Dusty Galaxies II. Momentum-Driven Winds Powered by Star Formation in the Early Universe
Creators: name: Spilker, Justin S.
name: Aravena, Manuel
name: Phadke, Kedar A.
name: Bethermin, Matthieu
name: Chapman, Scott C.
name: Dong, Chenxing
name: Gonzalez, Anthony H.
name: Hayward, Christopher C.
name: Hezaveh, Yashar D.
name: Litke, Katrina C.
name: Malkan, Matthew A.
name: Marrone, Daniel P.
name: Narayanan, Desika
name: Reuter, Cassie
name: Vieira, Joaquin D.
name: Weiss, Axel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Galactic outflows of molecular gas are a common occurrence in galaxies and may represent a mechanism by which galaxies self-regulate their growth, redistributing gas that could otherwise have formed stars. We previously presented the first survey of molecular outflows at z > 4 towards a sample of massive, dusty galaxies. Here we characterize the physical properties of the molecular outflows discovered in our survey. Using low-redshift outflows as a training set, we find agreement at the factor-of-two level between several outflow rate estimates. We find molecular outflow rates 150-800Msun/yr and infer mass loading factors just below unity. Among the high-redshift sources, the molecular mass loading factor shows no strong correlations with any other measured quantity. The outflow energetics are consistent with expectations for momentum-driven winds with star formation as the driving source, with no need for energy-conserving phases. There is no evidence for AGN activity in our sample, and while we cannot rule out deeply-buried AGN, their presence is not required to explain the outflow energetics, in contrast to nearby obscured galaxies with fast outflows. The fraction of the outflowing gas that will escape into the circumgalactic medium (CGM), though highly uncertain, may be as high as 50%. This nevertheless constitutes only a small fraction of the total cool CGM mass based on a comparison to z~2-3 quasar absorption line studies, but could represent >~10% of the CGM metal mass. Our survey offers the first statistical characterization of molecular outflow properties in the very early universe.
description: ApJ accepted. 25 pages, 16 figures. Data and tables from Papers I and II available at https://github.com/spt-smg/publicdata
РАСПРОСТРАНЕННОСТЬ, КЛИНИЧЕСКОЕ ТЕЧЕНИЕ И ЭПИДЕМИОЛОГИЧЕСКИЙ КОНТРОЛЬ ГЕРПЕТИЧЕСКИХ СТОМАТИТОВ У ДЕТЕЙ С ВРОЖДЕННОЙ ЦИТОМЕГАЛОВИРУСНОЙ ИНФЕКЦИЕЙ
Creators: name: Шарипова, Г.И.
name: Каримова, Нигина
Publisher: name: Zenodo
Year: 2024

description: При врожденной ЦВМИ передача вируса к плоду происходит трансплацентарно, при перинатальной инфекции — путем контакта с вагинальными выделениями матери, грудным молоком или препаратами крови. Риск заражения увеличивается, если мать с острой формой болезни не получает специфическое лечение. В постнатальном периоде ребенок чаще всего заражается от ближайших родственников и сверстников воздушно-капельным или контактно-бытовым путем.
Electroweak effects in top-quark pair production at Hadron Colliders
Creators: name: Kuhn, J. H.
name: Scharf, A.
name: Uwer, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Top-quark physics plays an important role at hadron colliders such as the Tevatron collider at Fermilab or the upcoming Large Hadron Collider (LHC) at CERN. Given the planned experimental precision, detailed theoretical predictions are mandatory. In this article we present analytic results for the complete electroweak corrections to gluon induced top-quark pair production, completing our earlier results for the quark-induced reaction. As an application we discuss top-quark pair production at Tevatron and at LHC. In particular we show that, although small for inclusive quantities, weak corrections can be sizeable for differential distribution.
Reversible to Irreversible Flow Transition in Periodically Driven Vortices
Creators: name: Mangan, N.
name: Reichhardt, C.
name: Reichhardt, C. J. Olson
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We show that periodically driven superconducting vortices in the presence of quenched disorder exhibit a transition from reversible to irreversible flow under increasing vortex density or cycle period. This type of behavior has recently been observed for periodically sheared colloidal suspensions and we demonstrate that driven vortex systems exhibit remarkably similar behavior. We also provide evidence that the onset of irreversible behavior is a dynamical phase transition.
description: 4 pages, 4 postscript figures. Version to appear in Physical Review Letters
Επίλυση προβλήματος με αφήγηση ιστοριών:
Creators: name: Ιατροπούλου, Ουρανία Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Επίλυση προβλήματος
Αφήγηση ιστοριών
Στρατηγικές ικανότητες
Πρόσθεση
Αφαίρεση
Problem solving
Storytelling
Strategies
Faculties
Addition
Abstraction

description: Αυτή η εργασία στοχεύει στην έρευνα για τη βελτίωση των ικανοτήτων των παιδιών της προσχολικής ηλικίας, να λύσουν προβλήματα πρόσθεσης και αφαίρεσης. Στην παρούσα μελέτη, εξετάζονται οι ικανότητες των μικρών παιδιών να αντιληφθούν τα στοιχεία του προβλήματος και να τα συνδέσουν έτσι ώστε να επινοήσουν ένα σχέδιο επίλυσης, το οποίο παρουσιάζουν με αντικείμενα, εικονικές αναπαραστάσεις, λεκτική περιγραφή και άλλα υλικά. Αυτό πραγματοποιείται με την παρουσίαση τριών, αυξανόμενης δυσκολίας, λεκτικών προβλημάτων και τριών αφηγηματικών. Τα αποτελέσματα έδειξαν ότι βελτίωση των ικανοτήτων, αλλά όχι στον ίδιο βαθμό σε όλους τους τύπους προβλημάτων.
description: This work aims in the research about the improvement of faculties of children of preschool age, to resolve problems of addition and abstraction. Ιn this paper, the faculties of small children to perceive the elements of problem and to connect them so as to they devise a plan of resolution, which they present with objects, iconic representations, verbal description and other materials (eg measurement of fingers) are studied with the presentation of three increasing difficulty, verbal problems and three narrating ones. The results showed improvement of children’s faculties, but no in the same degree in the all types of problems.
Spin relaxation of two-dimensional electrons with a hierarchy of spin-orbit couplings
Creators: name: Li, Yuan
name: Li, You-Quan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The density matrix formalism is applied to calculate the spin-relaxation time for two-dimensional systems with a hierarchy of spin-orbit couplings, such as Rashba-type, Dresselhaus-type and so on. It is found that the spin-relaxation time can be infinite if those coupling strengths $α$, $β$, $γ_1$ and $γ_2$ satisfy either condition (i) $α=β, γ_1=0$ or (ii) $α=-β, γ_2=0$, which correspond to the vanishing Yang-Mills "magnetic" field. The effect caused by the application of an external magnetic field is also discussed. It is found that the longitudinal and in-plane spin components can possess infinite life time when the spin components, the Larmor precession frequency and the external magnetic field satisfy certain relations.
description: Revtex, 7 pages, 3 figures
IMKONIYAtI CHEKLANGAN BOLALAR BILAN ISHLASHDA KUTUBXONALARNING ROLI
Creators: name: Sultanova, Zuxra
Publisher: name: Zenodo
Year: 2024

description: Ушбу мақолада имконияти чекланган фойдаланувчилар учун ахборот-кутубхона муассасалари хизматларидаги муаммолар, ногиронларга хизмат кўрсатадиган кутубхона ходимларига қўйиладиган алоҳида талаблар ёритилган.
An Ap-Structure with Finslerian Flavor: I
Creators: name: Wanas, M. I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A geometric structure (FAP-structure), having both absolute parallelism and Finsler properties, is constructed. The building blocks of this structures are assumed to be functions of position and direction. A non-linear connection emerges naturally and is defined in terms of the building blocks of the structure. Two linear connections, one of Berwald type and the other of the Cartan type, are defined using the non-linear connection of the FAP. Both linear connections are non-symmetric and consequently admit torsion. A metric tensor is defined in terms of the building blocks of the structure. The condition for this metric to be a Finslerian one is obtained. Also, the condition for an FAP-space to be an AP-one is given.
description: 13 pages, LaTeX file, typographical corrections. Part of a talk presented at The International Conference on "Finsler Extensions of Relativity Theory" held at Cairo, Egypt, November 4-10,2006
Jump of tunneling magnetoresistance in magnetic nanocontacts with mismatched cross section
Creators: name: Katkov, V. L.
name: Osipov, V. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have studied the influence of the transverse size of a magnetic tunnel nanojunction on the magnitude of the magnetoresistance. During modeling, the size of the right contact was fixed, while the size of the left one gradually changed until they coincided. We found a sharp drop in the tunneling magnetoresistance (TMR) in nanocontacts with mismatched cross section. This can be explained by the peculiarities of the spatial distribution of the electron density, which is different for majority and minority-spin states. The discovered effect must be taken into account in the design of TMR-based nanodevices.
Groupe des Dombes: Maria in Gottes Heilsplan und in der Gemeinschaft der Heiligen
Creators: name: Globig, Christine
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 50 Nr. 1 (2001): Ökumenische Rundschau, Band 50, Heft 1
A Common-Path Interferometer for Time-Resolved and Shot-Noise-Limited Detection of Single Nanoparticles
Creators: name: van Dijk, Meindert A.
name: Lippitz, Markus
name: Stolwijk, Daniel
name: Orrit, Michel
Publisher: name: arXiv
Year: 2006
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We give a detailed description of a novel method for time-resolved experiments on single non-luminescent nanoparticles. The method is based on the combination of pump-probe spectroscopy and a common-path interferometer. In our interferometer, probe and reference arms are separated in time and polarization by a birefringent crystal. The interferometer, fully described by an analytical model, allows us to separately detect the real and imaginary contributions to the signal. We demonstrate the possibilities of the setup by time-resolved detection of single gold nanoparticles as small as 10 nm in diameter, and of acoustic oscillations of particles larger than 40 nm in diameter.
Special Resolution of the Rainbow Ranche Limited and its Certification, December 30, 1950
Creators: name: Rainbow Ranche
Publisher: name: The University of British Columbia
Year: 2017

description: 5 copies of the special resolution by the Rainbow Ranche Limited, dated December 30, 1950, resolving that the Company is no longer engaged in active operations, that the Company wound up voluntarily, and that a liquidator be appointed; its certification included, which states that the special resolution was passed and signed by James Goldie.
Η ισότητα των δύο φύλων στην κοινωνική ασφάλιση (νομοθετικές ρυθμίσεις και εφαρμογή της αρχής από την ελληνική νομολογία και τη νομολογία του Δεκ):
Creators: name: Μπουχουρούδη, Μαριάνα Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Αρχή της ισότητας των δύο φύλων
Κοινωνική ασφάλιση
Αρθρο 119 ΣΕΚ
Οδηγία 79/07/ΕΟΚ
Νομολογιακή εξέλιξη
ΔΕΚ
Equality of the sexes
Social insurance
Article 119 european convention
Directive 79/07/EEC
Legislative development
European Court of justice

description: Η παρούσα διπλωματική εργασία προσεγγίζει την αρχή της ισότητας των δύο φύλων στο πεδίο της κοινωνικής ασφάλισης, όπως αυτή ρυθμίζεται νομοθετικά και εφαρμόζεται νομολογιακά, σε επίπεδο τόσο εθνικής όσο και κοινοτικής έννομης τάξης. Αρχικά προσδιορίζεται εννοιολογικά η θεμελιώδης αρχή της ισότητας των δύο φύλων, όπως αυτή κατοχυρώνεται από πλέγμα συνταγματικών διατάξεων και περαιτέρω υλοποιείται από πλήθος εθνικών ρυθμίσεων, ενώ στη συνέχεια η αρχή μελετάται ειδικότερα, στο πλαίσιο των εθνικών συστημάτων κοινωνικής ασφάλισης. Ακολούθως, αναλύονται οι επιταγές του κοινοτικού δικαίου (πρωτογενούς και παράγωγου) περί ισότητας των φύλων στο κοινωνικοασφαλιστικό δίκαιο, προς τις οποίες το εγχώριο δίκαιο οφείλει να εναρμονιστεί. Τέλος, εξετάζονται οι ενδιαφέρουσες εξελίξεις στη νομολογία των ελληνικών δικαστηρίων και του ΔΕΚ, οι οποίες συμβάλλουν σημαντικά στην ουσιαστικότερη εμπέδωση της αρχής της ισότητας των φύλων στο χώρο της κοινωνικής ασφάλισης.
description: This dissertation thesis approaches the principle of equality of the sexes within the scope of social insurance, as this is regulated legislatively and is implemented by law, at a level of national, as well as European legitimate order. In the beginning, the fundamental principle of equality of the sexes, as this is consolidated by a complex of constitutional provisions and further materialized by several national regulations is determined, whereas afterwards, the principle is studied within the framework of national social insurance systems. Then, the orders of European law (primary and derivative) are analyzed in connection to the equality of the sexes in social-insurance law, to which national law ought to harmonize. Finally, the interesting developments of laws of Greek courts and the European Court of Justice are studied, which significantly contribute to the more substantial consolidation of the principles of equality of the sexes in the field of social insurance.