cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Σχέση κοινωνιομετρικής θέσης, αυτοσυναισθήματος και επιπέδου αδρών φυσικών ικανοτήτων παιδιών Ε΄και Στ΄δημοτικού
Creators: name: Γρηγορίου, Αντώνης Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Κοινωνιομετρική θέση
Κοινωνιομετρική δοκιμασία
Αυτοσυναίσθημα
Φυσικές ικανότητες
Διαφορές φύλων
Sociometric status
Sociometric test
Self-concept
Physical abilites
Sex differences

description: Οι φυσικές ικανότητες, η κοινωνική θέση και το αυτοσυναίσθημα φαίνεται ότι συνδέονται και αλληλοεπηρεάζονται. Οι έρευνες που υποστηρίζουν την θέση αυτή δεν δείχνουν ξεκάθαρα τα μεγέθη αυτών των σχέσεων, ούτε και τα συγκρίνουν μεταξύ τους. Η παρούσα έρευνα σχεδιάστηκε για να διασαφηνιστούν οι σχέσεις αυτών των παραμέτρων σε προέφηβους μαθητές. Στην έρευνα συμμετείχαν 326 μαθητές των Ε' και Στ τάξεων του Δημοτικού Σχολείου. Τα εργαλεία που χρησιμοποιήθηκαν είναι το ΠΑΤΕΜ-ΙΙ (Πως Αντιλαμβάνομαι Τον Εαυτό Μου-ΙΙ), η κοινωνιομετρική μέθοδος των Coie, Dodje & Coppotelli (1982) και η δοκιμασίες φυσικής κατάστασης Eurofit. Τα αποτελέσματα έδειξαν ότι δεν υπάρχει σχέση μεταξύ των επιπέδων της κοινωνιομετρικής θέσης και των φυσικών ικανοτήτων. Τόσο τα επίπεδα της κοινωνιομετρικής θέσης, όσο και οι φυσικές ικανότητες σχετίζονται με τα επιμέρους στοιχεία του αυτοσυναισθήματος «Σχέσεις με Συνομηλίκους» και «Αθλητική Ικανότητα», αλλά δεν φαίνεται να σχετίζονται με άλλες περιοχές του αυτοσυναισθήματος. Τα αποτελέσματα ερμηνεύονται με την άποψη πως, οι αθλητικές δραστηριότητες αποτελούν ευκαιρία για την ανάπτυξη τόσο των φυσικών ικανοτήτων, όσο και των κοινωνικών δεξιοτήτων και των αντίστοιχων πτυχών του αυτοσυναισθήματος. Προτείνεται η διερεύνηση της αιτιώδους σχέσης μεταξύ των παραγόντων αυτών και η μελέτη άλλων μεταβλητών.
description: The physical abilities, the social status and the self-concept seem to be connected and influence each other. The researches that support this position, neither do they show clearly the size of this relationship nor do the compare them. This research was designed in a way that the parameters of this relationship can be clarified to pre-teenager students. At the research 326 students of the 5th and 6th grade of School participated. The tools used were the ΠΑΤΕΜ (How I Understand Myself-II), the sociometric method of Coie, Dodje & Coppotelli (1982) and the physical state test Eurofit. The results show that there is no relationship between the standards of sociometric status and the physical abilities. Both the standards of sociometric status and the physical abilities are related with each other of the rudiments of self-concept of "Relationship within Contemporaries" and "Athletic Ability" but it does not seam to be related with other areas of self-concept. The results can be explained with the view that athletic activities comprise the opportunity for the development of both physical and social abilities and the corresponding tuck of self-concept. More research is being suggested in order to find out the reasons for the relationship between these factors and the study of other variables.
Absence of coexisting phase of quark-antiquark and diquark condensed phases in the extended Gross-Neveu model in $2 + 1$ dimensions
Creators: name: Niégawa, Akira
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the coexisting phase of quark-antiquark and diquark condensed phases is absent in the cold quark matter in the $2 + 1$ dimensional extended Gross-Neveu model, which is in sharp contrast to the case of $3 + 1$ dimensional Nambu--Jona-Lasinio model.
description: 9 pages
Structural, chemical and optical characterizations of nanocrystallized AlN:Er thin films prepared by r.f. magnetron sputtering
Creators: name: Brien, Valerie
name: Miska, P.
name: Rinnert, H.
name: Genève, D.
name: Pigeat, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Nanocrystalline n-AlN:Er thin films were deposited on (001) Silicon substrates by r. f. magnetron sputtering at room temperature to study the correlation between 1.54 $μ$m IR photoluminescence (PL) intensity, AlN crystalline structure and Er concentration rate. This study first presents how Energy-Dispersive Spectroscopy of X-rays (EDSX) Er Cliff Lorimer sensitivity factor alpha = 5 is obtained by combining EDSX and electron probe micro analysis (EPMA) results on reference samples. It secondly presents the relative PL intensities of nanocrystallized samples prepared with identical sputtering parameters as a function of the Er concentration. The structure of crystallites in AlN films is observed by transmission electron microscopy.
Some Aspects of c=-2 Theory
Creators: name: Rajabpour, M. A.
name: Rouhani, S.
name: Saberi, A. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate some aspects of the c=-2 logarithmic conformal field theory. These include the various representations related to this theory, the structures which come out of the Zhu algebra and the W algebra related to this theory. We try to find the fermionic representations of all of the fields in the extended Kac table especially for the untwisted sector case. In addition, we calculate the various OPEs of the fields, especially the energy-momentum tensor. Moreover, we investigate the important role of the zero modes in this model. We close the paper by considering the perturbations of this theory and their relationship to integrable models and generalization of Zamolodchikov's $c-$theorem.
description: 25 pages
Reanalyses and a high-resolution model fail to capture the `high tail' of CAPE distributions
Creators: name: Wang, Ziwei
name: Franke, James A.
name: Luo, Zhenqi
name: Moyer, Elisabeth J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Convective available potential energy (CAPE) is of strong interest in climate modeling because of its role in both severe weather and in model construction. Extreme levels of CAPE ($>$ 2000 J/kg) are associated with high-impact weather events, and CAPE is widely used in convective parametrizations to help determine the strength and timing of convection. However, to date no study has systematically evaluated CAPE biases in models in a climatological context, in an assessment large enough to characterize the high tail of the CAPE distribution. This work compares CAPE distributions in over 200,000 summertime proximity soundings from four sources: the observational radiosonde network (IGRA), 0.125 degree reanalysis (ERA-Interim and ERA5), and a 4 km convection-permitting regional WRF simulation driven by ERA-Interim. Both reanalyses and model consistently show too-narrow distributions of CAPE, with the high tail ($>$ 95th percentile) systematically biased low by up to 10% in surface-based CAPE and 20% at the most unstable layer. This "missing tail" corresponds to the most impacts-relevant conditions. CAPE bias in all datasets is driven by bias in surface temperature and humidity: reanalyses and model undersample observed cases of extreme heat and moisture. These results suggest that reducing inaccuracies in land surface and boundary layer models is critical for accurately reproducing CAPE.
description: Submitted to AMS Journal of Climate (15 December 2020)
Future land use maps for the Netherlands for the Dutch One Health SSPs
Creators: name: Dellar, Martha
name: Geerling, Gertjan
name: Kok, Kasper
name: van Bodegom, Peter
name: van der Schrier, Gerard
name: Schrama, Maarten
name: Boelee, Eline
Publisher: name: Zenodo
Year: 2024
Subjects: Land use
DynaCLUE
SSPs
Netherlands

description: We have created future land use maps for the Netherlands for 2050, based on the Dutch One Health Shared Socio-economic Pathways (SSPs). This was done using the DynaCLUE modelling framework. Future land use is based on altitude, soil properties, groundwater, salinity, flood risk, agricultural land price, distance to transport hubs and climate. We also account for anticipated demand for different land use types, historic land use changes and potential spatial restrictions. These land maps will enable detailed modelling of a wide variety of future health challenges in the Netherlands, such as disease risk, water quality and pollution. In addition, the methodology and assumptions used can inform research in other urban deltas. Here we provide all model input and output files.
description: Funding provided by: Dutch Research CouncilROR ID: https://ror.org/04jsz6e67Award Number: NWA.1160.1S.210
description: We used the DynaCLUE modelling framework. A full description of how all model inputs were derived is provided in the accompanying paper.

We made future land use maps for the Netherlands for 2050, based on the Dutch One Health Shared Socio-economic Pathways (SSPs) (https://doi.org/10.1007/s10113-023-02169-1). Maps were created for SSP1, 3, 4 and 5. We considered five land use types: urban, pasture, crops, forest and non-forest nature.  The maps were created on a 1km grid.

The main steps were:

Classify land use types

Use historic Dutch land use data to determine the likelihood of changes

Determine demand for each land use type under each scenario

Determine possible predictors of change (from literature) and use logistic regression to determine how they affect land use type

Define spatial restrictions and preferences affecting land use change under each scenario

Define additional model parameters and inputs

Run the model to create land use maps for each SSP scenario

We also validated the model by starting it in the year 1990 and seeing how well it predicted land use in 2018.
Experimental and computational investigation of inclined jets in a crossflow
Creators: name: Findlay, Matthew J.
Publisher: name: University of British Columbia
Year: 2009

description: The flow field characteristics of four different geometries of a row of square jets in a crossflow at velocity ratios relevant to gas turbine film cooling applications have been examined using experimental and computational methods. The geometries considered were: long and short entry length streamwise-inclined jets, spanwise-inclined jets, and compound-angle jets. Mean velocity and turbulence measurements were made using a three-component LDV system. Jet penetration, spreading, and film cooling effectiveness were measured using a flame ionization detector. Numerical simulations were performed using three different turbulence models: the standard κ — ε model, Menter's baseline blended κ — ε/κ — ω model, and Menter's shear stress transport model. The flow field at the jet exit is strongly influenced by the crossflow, as well as by the inlet conditions at the entrance to the jet orifice. At low velocity ratios the jets do not penetrate beyond the upstream boundary layer thickness. As the velocity ratio increases, the jet penetrates beyond the boundary layer resulting in stronger interaction with the crossflow. Considerable anisotropy of the turbulent flow field is observed. The film cooling effectiveness is best at the lowest velocity ratio as the jet is deflected strongly towards the floor of the wind tunnel, although the improvement is more significant for the streamwise injection case. At the highest velocity ratio the spanwise jets provide the best film cooling effectiveness but provide increased blockage to the crossflow. The results of the preliminary computational analysis indicate that the flow field produced by each of the geometries provides a serious challenge for numerical modelling. Mean velocity gradients and turbulence kinetic energy levels are typically underpredicted by the computations due to the assumption of equilibrium turbulence inherent in the models. The use of an isotropic eddy viscosity model must be reconsidered in light of the measured turbulence anisotropy and generation of turbulent shear stresses from velocity gradients not included in the standard eddy viscosity formulation.
Probing of $Wtb$ Anomalous Couplings via the $tW$ Channel of Single Top Production
Creators: name: Najafabadi, Mojtaba Mohammadi
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The potential of LHC for investigation of the $W$-$t$-$b$ vertex through the $tW$ channel of single top quark production is studied. Unlike the other two single top quark production processes ($t-$channel and $s-$channel), the $tW$ channel provides the possibility to study the $Wtb$ vertex without receiving contamination from FCNC. This study has been done at parton level but is involved the separation of signal from backgrounds when both $W$-bosons decay to leptons. In this study $\mathcal{CP}$ is assumed to be conserved. The 68% C.L. bounds on the non-Standard Model couplings are estimated.
description: 11 pages, 4 figures
The Correlation between Consumer Awareness of Cosmetic Sustainability and Purchasing Intention Among Bahraini Women
Creators: name: Khaled Al Khalifa, Shaikha
Publisher: name: American University of Bahrain
Year: 2024
Subjects: classificationCode: 3506
subject: Marketing
subject: FOS: Economics and business
classificationCode: 350601
subject: Consumer behaviour

description:  This research paper focuses on whether consumer awareness of cosmetic sustainability correlates to higher levels of purchasing intention among the women of the Kingdom of Bahrain. The significance behind this research includes the impact of overconsumption of non-sustainable cosmetic products on the environment, in which causes its corruption and worsening in the long-run. Thus, this research unravels the potential motivators behind sustainable cosmetic purchasing, in which would be most beneficial to today’s green cosmetic marketers, scholars, as well as green cosmetic leaders.The methodology consists of a quantitative-based approach, with the use of digital questionnaires sent to agreed female Bahraini participants of various age groups. The digital questionnaire consisted of various independent variables to measure the correlations to higher levels of sustainable cosmetic purchasing. These independent variables include environmental awareness, intrinsic factors, as well as purchasing power.The gathered findings of the study had shed light on the fact that purchasing power had been the most significant factor to higher levels of sustainable cosmetic purchasing. Although, it has been revealed that consumer awareness holds an insignificant influence over sustainable cosmetic purchasing, unlike purchasing power and intrinsic factors. In which, this reveals that the relationship between consumer awareness of current environmental concerns and sustainable cosmetic purchasing possesses is insignificant.Therefore, this research contributes to the understanding of the underlying motivators behind sustainable cosmetic purchasing among Bahraini women. There is great significance behind this research and aids future scholars to utilize the research’s findings as reference to greater in-depth discoveries behind consumer behavior. This is essential for green cosmetic businesses to understand, as the reasonings behind sustainability is to protect the environment and preserve its nature for future generations to come.
Forwarding design for stabilization of a coupled transport equation-ODE with a cone-bounded input nonlinearity
Creators: name: Marx, Swann
name: Brivadis, Lucas
name: Astolfi, Daniele
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We propose a new design technique for the stabilization of coupled ODE-PDE systems in feedforward form. In particular, we address the stabilization problem of a one-dimensional transport equation driven by a scalar ODE which is controlled via a cone-bounded nonlinearity. The unforced transport equation is conservative but not asymptotically stable. The proposed technique is inspired by the forwarding approach early introduced in the 90's. Well-posedness and asymptotic stability of the closed-loop system are discussed.
Kinetic glass behavior in a diffusive model
Creators: name: Capeta, D.
name: Sunko, D. K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Three properties of the Edwards-Anderson model with mobile bonds are investigated which are characteristic of kinetic glasses. First is two-time relaxation in aged systems, where a significant difference is observed between spin and bond autocorrelation functions. The spin subsystem does not show two-time behavior, and the relaxation is stretched exponential. The bond subsystem shows two-time behavior, with the first relaxation nearly exponential and the second similar to the spin one. Second is the two-temperature behavior, which can be tuned by bond dilution through the full range reported in the literature. Third is the rigid-to-floppy transition, identified as a function of bond dilution. Simple Glauber Monte Carlo evolution without extraneous constraints reproduces the behavior of classical kinetic simulations, with the bond (spin) degree of freedom corresponding to configurational (orientational) disorder.
description: 4 pages, 3 figures, minimal corrections, to appear in Phys. Rev. B (RC)
Comparison among HB-inspired algorithms for continuous-spin systems and gauge fields
Creators: name: Cucchieri, A.
name: Frigori, R. B.
name: Mendes, T.
name: Mihara, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We propose a new local algorithm for the thermalization of n-vector spin models, which can also be used in the numerical simulation of SU(N) lattice gauge theories. The algorithm combines heat-bath (HB) and micro-canonical updates in a single step -- as opposed to the hybrid overrelaxation method, which alternates between the two kinds of update steps -- while preserving ergodicity. We test our proposed algorithm in the case of the one-dimensional 4-vector spin model and compare its performance with the standard HB algorithm and with other HB-inspired algorithms.
description: 6 pages, 4 figures. Work presented at the IV Brazilian Meeting on Simulational Physics -- Ouro Preto - MG/Brazil, August 2005
Strings, black holes, the tripartite entanglement of seven qubits and the Fano plane
Creators: name: Lévay, Péter
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently it has been observed that the group $E_7$ can be used to describe a special type of quantum entanglement of seven qubits partitioned into seven tripartite systems. Here we show that this curious type of entanglement is entirely encoded into the discrete geometry of the Fano plane. We explicitly work out the details concerning a qubit interpretation of the $E_7$ generators as representatives of tripartite protocols acting on the 56 dimensional representation space. Using these results we extend further the recently studied analogy between quantum information theory and supersymmetric black holes in four-dimensional string theory. We point out there is a dual relationship between entangled subsystems containing three and four tripartite systems. This relationship is reflected in the structure of the expressions for the black hole entropy in the N=4 and N=2 truncations of the $E_{7(7)}$ symmetric area form of N=8 supergravity. We conjecture that a similar picture based on other qubit systems might hold for black hole solutions in magic supergravities.
description: 42 pages, 5 figures, LATEX
A Field-Enhanced Conduction-Cooled Superconducting Cavity for High-Repetition-Rate Ultrafast Electron Bunch Generation
Creators: name: Mohsen, Osama
name: Mihalcea, Daniel
name: Tom, Nathan
name: Adams, Noah
name: Dhuley, Ram
name: Geelhoed, Michael I
name: McKeown, Aaron
name: Korampally, Venumadhav
name: Piot, Philippe
name: Salehinia, Iman
name: Thangaraj, Jayakar C.
name: Xu, Tianzhe
Publisher: name: arXiv
Year: 2020
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: High-repetition-rate sources of bright electron bunches have a wide range of applications. They can directly be employed as probes in electron-scattering setups, or serve as a backbone for the generation of radiation over a broad range of the electromagnetic spectrum. This paper describes the development of a compact sub-Mega-electronvolt (sub-MeV) electron-source setup capable of operating at MHz repetition rates and forming sub-picosecond electron bunches with transverse emittance below 20~nm. The setup relies on a conduction-cooled superconducting single-cell resonator with its geometry altered to enhance the field at the surface of the emitter. The system is designed to accommodate cooling using a model a $2$~W at 4.2 K pulse tube cryogen-free cryocooler. Although we focus on the case of a photoemitted electron bunch, the scheme could be adapted to other emission mechanisms.
Symposii scholastici Aenigmata
Creators: name: Μάρκου, Παρασκευή Θεοδώρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Αινίγματα
Συμφόσιος
Σχόλια
Aenigmata
Symphosius
Scholia

description: Η προκείμενη διπλωματική εργασία πραγματεύεται τη λατινόγλωσση συλλογή αινιγμάτων που σώζεται υπό το όνομα του ρωμαίου Συμφοσίου. Ο συγγραφέας, αν όντως υπήρξε ποτέ, δε μας παρέδωσε άλλο έργο του. Μάλιστα, πολλοί θεωρούν ως συγγραφέα των αινιγμάτων τον Λακτάντιο και αποδίδουν τη σύγχυση του ονόματος, που έχει προκύψει, σε παλαιογραφικό λάθος. Όπως και να είναι τα πράγματα, το έργο τοποθετείται χρονικά στα ύστερα ρωμαϊκά χρόνια και ενορχηστρώνεται από εκατό αινίγματα, των οποίων ο συγγραφέας παραθέτει και τις απαντήσεις υπό μορφή τίτλου. Στις σελίδες που απαρτίζουν την εργασία, εξετάζεται η ταυτότητα του συγγραφέα και επιχειρείται μία ενδεικτική προσέγγιση του έργου. Παρέχονται επίσης, πληροφορίες σχετικές με τη συλλογή, τα χειρόγραφα που τη διασώζουν, το περιεχόμενο, τις επιδράσεις που ή ίδια άσκησε καθώς και για το αίνιγμα γενικότερα ως λογοτεχνικό είδος. Τέλος, ο αναγνώστης είναι σε θέση να προσεγγίσει τα εν λόγω ποιήματα στη λατινική γλώσσα καθώς και να έχει στη διάθεσή του απόδοσή τους στη νέα ελληνική γλώσσα.
description: The present diplomatic essay deals with the Latin collection of ririddles, which is saved under the name of the Roman Symphosius. The author, if he really existed, didn't give us another work. Indeed, many experts, occupied with this matter, think that the poet of these riddles was Lactantius and attribute the confusion, which was provoked, in paleographic mistake. Nevertheless, the collection is temporally settled in the last years of the Roman Empire and is consisted of one hundred riddles, whose author offers the solutions as well.In the peges of this essay, the real identity of the author is scrutinized and I attempt to achieve a possible identification. In addition, the essay offers information relevant to the collection, the manuscripts, the contents of the poems, the collection's influences and the riddle in general as a literary form. Finally, the reader is able to approach the poems in Latin language and at the same time in Greek.
Variability of the Fe K line relativistic component in a sample of Seyfert 1 galaxies
Creators: name: De Marco, B.
name: Cappi, M.
name: Dadina, M.
name: Palumbo, G. G. C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the analysis of X-ray spectral varability made on a sample of 7 Seyfert 1 bright galaxies, using XMM-Newton data. From the "XMM-Newton Science Archive" we selected those bright Seyfert 1 showing one or more prominent flares in their 2-10 keV light curves. For each of them we extracted spectra in 3 different time intervals: before, during and after the flare. We fitted them with a simple power law and then shifted a narrow emission and absorption line template across the 2.5-10 keV data, in order to investigate the presence of line-like features with a confidence level greater than 99%. Some highly significant features were detected in 3 out of 7 sources studied. In particular, the 3 sources, namely PG 1211+143, NGC 4051 and NGC 3783, showed the presence of a variable emission feature in the 4.5-5.8 keV band, characterized by an increase of its intensity after the flare peak. Because of the observed variability pattern, this feature seems to be ascribable to a reverbered redshifted relativistic component of the Fe K line.
description: 4 pages, 9 figures, accepted for publication in Astronomische Nachrichten, proceedings of the ESAC Workshop "Variable and Broad Iron Lines around Black Holes"
A CORPUS-BASED STUDY OF LANGUAGE CHANGE: THE INFLUENCE OF DIGITAL COMMUNICATION ON GRAMMAR IN ENGLISH
Creators: name: Fayziyev, Alisher
Publisher: name: Zenodo
Year: 2024

description: The rapid growth of digital communication has influenced language use, particularly in how grammar is applied in informal written contexts. This study examines the grammatical changes in English caused by the proliferation of digital platforms, such as texting, social media, and online messaging. Using data from the Corpus of Contemporary American English (COCA) and the Cambridge English Corpus (CEC), the research analyzes shifts in sentence structure, word order, and abbreviations in digital communication compared to traditional written forms. The findings reveal that while digital communication has led to more fragmented, informal, and concise language use, many core grammatical rules remain intact. These changes reflect the need for efficiency and immediacy in online communication, with implications for both language teaching and future grammatical norms.
Διατροφικές συνήθειες, δείκτης μάζας σώματος, αθλητικές συνήθειες. Διαφορές μεταξύ μαθητών της Α', Β' και Γ' γυμνασίου
Creators: name: Ζαραμπούκα, Ολυμπία Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Διατροφικές συνήθειες
Σωματική δραστηριότητα
Δείκτης μάζας σώματος
Παχυσαρκία
Nutritional behavior
Physical activity
Body mass index (BMI)
Obesity

description: Σκοπός της έρευνας ήταν να εξεταστούν οι διαφορές μεταξύ μαθητών και μαθητριών της Α΄, Β΄, Γ΄ Γυμνασίου, με διαφορετικό δείκτη μάζας σώματος (ΔΜΣ) ως προς: α) τις διατροφικές τους συμπεριφορές, β) τη συμμετοχή τους σε σωματικές δραστηριότητες. Το δέιγμα της έρευνας αποτέλεσαν μαθητές και μαθήτριες (αγόρια και κορίτσια), ηλικίας από 11 χρονών και 4 μηνών έως και 17 ετών, οι οποίοι κατηγοριοποιήθηκαν σύμφωνα με την τιμή του ΔΜΣ, σε άτομα με φυσιολογικό ΔΜΣ, υπέρβαρα και παχύσαρκα. Η έρευνα πραγματοποιήθηκε μέσω ερωτηματολογίου κι όλες οι κλίμακες είχαν αποδεκτούς δείκτες εσωτερικής συνοχής (α>0,05). Το 19,56% και το 3,39% των μαθητών κατατάχθηκαν στην κατηγορία των σωματικά υπέρβαρων και παχύσαρκων αντίστοιχα. Από την ανάλυση διακύμανσης δύο κατευθύνσεων, με ανεξάρτητες μεταβλητές το φύλο και την κατηγοριοποίηση με βάση το ΔΜΣ (φυσιολογικός, υπέρβαρος, παχύσαρκος), δεν διαπιστώθηκε ότι οι υπέρβαροι και παχύσαρκοι μαθητές είχαν στατιστικά χαμηλότερo σκορ στο δείκτη φυσικής δραστηριότητας σε σύγκριση με τους μαθητές που είχαν φυσιολογικό δείκτη ΔΜΣ, σε αντίθεση με το φύλο αυτών, όπου παρατηρήθηκε διαφορά. Ωστόσο, τα αποτελέσματα έδειξαν ότι οι υπέρβαροι και παχύσαρκοι μαθητές υιοθετούν περισσότερο καθιστικές συνήθειες στην καθημερινόητά τους, όπως πολλές ώρες παρακολούθησης τηλεόρασης. Τα ευρήματα της έρευνας υποδεικνύουν την ανάγκη για στοχευμένες παρεμβάσεις μέσω του μαθήματος φυσικής αγωγής στο σχολείο ή και έξω απ΄αυτό, με σκοπό την ενίσχυση υγιεινότερων συμπεριφορών, όπως για παράδειγμα η τακτική σωματική άσκηση ή δραστηριότητα.
description: The purpose of this study was to examine the differences among pupils of the intermediate school, with different body mass index (BMI) as to: a) nutritional behaviors and b) their participation in physical activity. In this study 1053 pupils participated (532 boys and 514 girls), aged from 11 years and 4 months (approximately) to 17 years. The study was held through questionnaires and all scales had acceptable levels of internal consistency (a>0,05). Students were divided according to their BMI, to those with: a) normal BMI, b) overweight children and c) obese children. The 19,56% and 3,39% of those pupils were categorized as overweight and obese accordingly. Two - way anova was used, with gender and BMI type as independent variables in order to examine differences. The results revealed that the obese and overweight pupils, when compared with students with normal BMI, that they adopt more sedentary daily habits such as many hours of TV watching. The results of this study imply the need of necessary school interventions in order to enhance healthier behaviors for all children.
Die Römisch-Katholische Kirche in der Arbeitsgemeinschaft Christlicher Kirchen in Deutschland
Creators: name: Urban, Hans Jörg
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 47 Nr. 1 (1998): Ökumenische Rundschau, Band 47, Heft 1
The box diagram in Yukawa theory
Creators: name: Bakker, Bernard L. G.
name: Boomsma, Jorn K.
name: Ji, Chueng-Ryong
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a light-front calculation of the box diagram in Yukawa theory. The covariant box diagram is finite for the case of spin-1/2 constituents exchanging spin-0 particles. In light-front dynamics, however, individual time-ordered diagrams are divergent. We analyze the corresponding light-front singularities and show the equivalence between the light-front and covariant results by taming the singularities.
description: 21 pages, 17 figures. submittes to Phys. Rev. D
Κάποιος φορεί τα ρούχα σου και πάει». Η παρενδυσία και η βία σε κείμενα της νεοελληνικής πεζογραφίας του 21ου αιώνα
Creators: name: Παρπόρης, Γεώργιος Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2024
Subjects: Παρενδυσία
Βία
Νεοελληνική πεζογραφία 21ου αιώνα
Crossdressing
Violence
Greek prose texts of 21st century

description: Στο πλαίσιο της διπλωματικής εργασίας, επιχειρούμε να εξετάσουμε και να προσεγγίσουμε σύγχρονα νεοελληνικά πεζογραφικά κείμενα του 21ου αιώνα -το μυθιστόρημα Το Παρτάλι (2001) του Θεόδωρου Γρηγοριάδη και τα διηγήματα «Άγριο βελούδο» (2008) και «Έτσι χάθηκε» (2016) της Μαρία Κουγιουμτζή- που περιστρέφονται γύρω από το δίδυμο της παρενδυσίας/βίας. Στο πεδίο της αφηγηματικής αναπαράστασης η εργασία λαμβάνει υπόψη τα ιδεολογικά και αισθητικά μονοπάτια της γραφής και τους μηχανισμούς έκφρασής της, κι επιχειρεί να ερμηνεύσει διάφορες πτυχές του προς διερεύνηση ζητήματος. Οι κοινωνικές, ιστορικές και πολιτικές συνθήκες σε συνάρτηση με ενδογενείς παράγοντες προσφέρουν ποικίλα ερωτήματα και συντείνουν στη διεξοδικότερη μελέτη. Πώς σκηνοθετείται αφηγηματικά σε κάθε περίπτωση η πράξη της μεταμφίεσης; Ποια είναι η λειτουργία της γραφής και πώς αποτυπώνεται; Τι ρόλο διαδραματίζει η βία και πώς αποκρίνεται στο λογοτεχνικό πεδίο;
description: In the context of this thesis we attempt to examine and approach contemporary modern greek prose texts of the 21st century, such as the novel The Partali (2001) by Theodoros Grigoriadis and two short stories, “Wild velvet” (2008) and “That’s how [he/she] passed away” (2016) by Maria Kougioumtzi, which revolve around the dipole of cross-dressing/violence. In the field of narrative representation, the paper takes account of the ideological and aesthetic passages of writing and its mechanisms of expressions as well, and try to interpret various aspects regarding the subject that concern us. The social, historical and political conditions in relation to endogenous criterions offer a variety of questions and contribute to a more thorough study. How exactly the act of disguise narratively staged in each case? What is the function of writing and how is it captured through the stories? What role does violence play and how does it respond to the literary field?
Additional information decreases the estimated entanglement using the Jaynes principle
Creators: name: Nagata, Koji
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study a particular example considered in {[Phys. Rev. A {\bf 59,} 1799 (1999)]}, concerning the statistical inference of quantum entanglement using the Jaynes principle. Assume a Clauser-Horne-Simony-Holt (CHSH) Bell operator, a sum of two operators $\sqrt{2}(X+Z)$. Given only an average of the Bell-CHSH operator, we may overestimate entanglement. However, the estimated entanglement is decreased (never increases) when we use the expectation value of the operator $X$ as additional information. A minimum entanglement state is obtained by minimizing the variance of the observable $X$.
description: To appear in Journal of Statistical Mechanics: Theory and Experiment
Analysis of the industrial automation of a food processing quality assurance workcell
Creators: name: Allin, Boyd
Publisher: name: University of British Columbia
Year: 2009

description: This thesis details a research project into the viability of increasing the level of automation employed in the canning of salmon. Specifically the post-filling quality control patching table has been studied. Data on this system was compiled from survey, interviews, and video tape of quality control personnel, and from a series of experiments done in an industry plant during a canning operation. The patching table workcell has been modelled and simulated using a computer simulation package. Several automation implementations are explored for their effectiveness and physical realizability. The most promising of these options have been simulated and evaluated for their economic profitability. Recommendations to the industrial producers are then presented.
Μαρκοβιανό μοντέλο για τις τιμές περιουσιακών στοιχείων σε αγορά δυναμικής διαπραγμάτευσης
Creators: name: Ξυδώνα, Αικατερίνη Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Μαρκοβιανή αλυσίδα
Ασυμπτωματική κατανομή
Walrasian ισορροπία
Ελεγκτής αγοράς
Μη λογικοί επενδυτές
Markov chain
Limiting distribution
Walrasian equilibrium
Marketmaker
Inventory
Irrational agents

description: Αυτή η επιστημονική εργασία υποδεικνύει ένα μοντέλο Μαρκοβιανής αλυσίδας για την μελέτη της επιρροής στις τιμές των περιουσιακών στοιχείων της μη ρευστότητας η οποία σχετίζεται με την αναζήτηση και διαπραγμάτευση σε μία οικονομία. Η οικονομία αποτελείται από αντιπροσώπους οι οποίοι μπορούν να ανταλλάξουν το περιουσιακό τους στοιχείο μόνο όταν εντοπίζουν ο ένας τον άλλο και οποιαδήποτε ανταλλαγή μεταξύ τους αλλάζει το πλήθος των τύπων των αντιπροσώπων, και αυτό επηρεάζει την τιμή του περιουσιακού στοιχείου στο μέλλον. Υποθέτοντας ότι η ασυμπτωτική χρησιμότητα, καθώς επίσης, και η τιμή ανταλλαγής είναι ανάλογες του μερίσματος του περιουσιακού στοιχείου, αποδεικνύουμε ότι υπάρχει μια steady-state subgame-perfect Nash ισορροπία για την τιμή του περιουσιακού στοιχείου. Μέσω εκτενών αριθμητικών πειραμάτων, παρατηρούμε ότι οι τιμές παρουσιάζουν το φαινόμενο των αποκοπών (δηλαδή συντριβή) καθώς το ποσοστό των απαισιόδοξων αντιπροσώπων γίνεται μεγάλο. Επίσης, εξετάζονται μοντέλα με marketmaker καθώς και μη λογικούς επενδυτές.
description: This paper proposes a Markov chain model for studying the impact on asset prices of illiquidity associated with search and bargaining in an economy. The economy consists of finitely many agents who can trade only when they find each other, and any trade between agents changes the population of the agent types which affects the asset price in future. Assuming that the equilibrium utility as well as the trade price is proportional to the asset dividend, we show that there exists a steady-state subgame-perfect Nash equilibrium for the asset price. Through extensive numerical experiments, we observe that prices exhibit the cutoff phenomenon (i.e. crash) as the fraction of pessimistic agents gets large. Models with a marketmaker as well as irrational agents are also considered.
Nota Tecnica sull'Utilizzo dei P. C. in Ambito INFN
Creators: name: D. Salomoni
name: S. Zani
name: O. Ciaffoni
name: L. Trasatti
name: A. Donati
name: P. Guida
name: R. Gomezel
name: C. Allocchio
Publisher: name: INFN Open Access Repository
Year: 1995

description: Scopo di questa nota tecnica e' quello di focalizzare le problematiche relative all'uso dei Personal Computers nei nostri Laboratori e Sezioni* proponendo alcune soluzioni in merito. I temi affrontati in maniera volutamente schematica riguardano, cablaggi e tipologie di rete, strumenti di management, configurazioni di rete a livello geografico, servizi di rete, office automation e acquisizione dati.L'ultimo censimento effettuato nell'estate - autunno del 1993 riportava una presenza nel nostro Istituto di circa 1100 PC di tipo Macintosh e 600 PC tipo IBM compatibili.
Ιδιοκτησιακό καθεστώς και περιφερειακή ανάπτυξη. Η περίπτωση του ορεινού Ρεθύμνου
Creators: name: Κουριδάκης, Αντώνιος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Ιδιοκτησιακό καθεστώς
Περιφερειακή ανάπτυξη
Δασικό κτηματολόγιο
Πράξεις χαρακτηρισμού
Βάση δεδομένων
Ownership status
Rural development
Forest cadastre
Acts of characterization
Database

description: Το ιδιοκτησιακό καθεστώς της νήσου Κρήτης και του ορεινού Ρεθύμνου ειδικότερα, είναι ένα ακανθώδες πρόβλημα. Προκειμένου να επιτευχθεί περιφερειακή ανάπτυξη στους επιμέρους δήμους που αποτελούν το Νομό Ρεθύμνης και πιο συγκεκριμένα στους ορεινούς δήμους, πρέπει να γνωρίζουμε δομικά στοιχεία για την ιδιοκτησιακή εκκρεμότητα των περισσοτέρων εκτάσεων που τους αποτελούν και να ανατρέξουμε σε πρωτογενή δεδομένα τα οποία υπάρχουν στις Δ/νσεις Δασών.Σκοπός της παρούσης εργασίας είναι να αξιοποιηθούν τα πολύχρονα και πρωτογενή ερευνητικά δεδομένα τα οποία υπάρχουν στη Δ/νση Δασών Ρεθύμνου σχετικά με τις πράξεις χαρακτηρισμού εκτάσεων (βάσει του Ν. 998/1979 και του Ν. 3208/2003), με τη χρήση κατάλληλων εφαρμογών που προσφέρουν οι νέες τεχνολογίες, προκειμένου να καταγραφούν σαφή ερευνητικά δεδομένα, απαραίτητα για τη δασολογική πράξη, την αναπτυξιακή προοπτική και την επίλυση του ακανθώδους ιδιοκτησιακού προβλήματος του Ρεθύμνου.
description: The ownership status of island Crete and of mountainous Rethimno specifically, is a crucial problem. In order to achieve regional growth in the individual municipalities that constitute the Prefecture of Rethymno and more concretely in the mountainous municipalities , we should know structural elements for the ownership suspense of the fields and then use primary data which exist in the Forest Services. Aim of the present work is to develop the primary inquiring data which exist in the Forest Service of Rethimno regarding the actions of characterization of fields (through the laws 998/1979 and 3208/2003), with the use of suitable applications that new technologies provide, in order to record explicit inquiring data, essential for the forestry action, the developmental prospect and the resolution of the ownership status of Rethimno
Αντικειμενικά όρια του δεδικασμένου ως προς τα προδικαστικά ζητήματα
Creators: name: Παπαδόπουλος, Ορφέας – Αναστάσιος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2024
Subjects: Πολιτική Δικονομία
Δεδικασμένο
Προδικαστικά ζητήματα
Civil Procedure
Res judicata
Preliminary issues

description: Σκοπός της διατριβής ήταν η ανάδειξη βασικών και καίριων ζητημάτων γύρω από την κάλυψη των προδικαστικών ζητημάτων από το δεδικασμένο μίας απόφασης της πολιτικής δικαιοδοσίας. Στο πρώτο κεφάλαιο τίθεται το ευρύτερο δογματικό πλαίσιο, αναλύονται ο σκοπός και η λειτουργία του δεδικασμένου, όπως και ο δικανικός συλλογισμός στα μέρη του. Ακολουθεί το δεύτερο κεφάλαιο, στο πλαίσιο του οποίου ορίζεται η έννοια και η πηγή της προδικαστικότητας. Στο τρίτο κεφάλαιο επιχειρείται να εκδιπλωθεί η ανάλυση αυτής καθ’ εαυτής της ρύθμισης του άρθρου 331 του ΚΠολΔ ως σύνολο πορισμάτων που προκύπτουν αβίαστα από ό,τι έχει προεκτεθεί. Επισημαίνεται ο ειδικότερος σκοπός της ρύθμισης, αντιπαραβάλλεται αυτή με τις αλλοδαπές ομόλογές της και εξετάζονται μία προς μία οι προϋποθέσεις εφαρμογής της. Η κατακλείδα δε δίδεται μέσα από την επισκόπηση δύο ειδικών ζητημάτων, σχετικών με την επέκταση του δεδικασμένου στο προδικαστικό ζήτημα.
description: The aim of the thesis was to highlight basic and key issues concerning the coverage of preliminary issues by a judgement which has the force of res judicata in the civil jurisdiction. In the first chapter, the broader doctrinal framework is set, the purpose and function of res judicata are analyzed, as well as the judicial reasoning is broken down in its parts. The second chapter follows, in the context of which the concept and source of pre-litigation is defined. In the third chapter, an attempt is made to unfold the analysis of the regulation of Article 331 of the Greek Code of Civil Procedure as a set of conclusions that emerge effortlessly from what has been extrapolated. The specific purpose of the regulation is highlighted, it is compared with its foreign counterparts and the conditions for its application are examined one by one. The final conclusion is given through the overview of two special issues, related to the extension of res judicata to the pre-trial issue.
Theory of Submanifolds, Associativity Equations in 2D Topological Quantum Field Theories, and Frobenius Manifolds
Creators: name: Mokhov, O. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Differential Geometry (math.DG)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53B25; 53D45; 35Q58; 81T45

description: We prove that the associativity equations of two-dimensional topological quantum field theories are very natural reductions of the fundamental nonlinear equations of the theory of submanifolds in pseudo-Euclidean spaces and give a natural class of potential flat torsionless submanifolds. We show that all potential flat torsionless submanifolds in pseudo-Euclidean spaces bear natural structures of Frobenius algebras on their tangent spaces. These Frobenius structures are generated by the corresponding flat first fundamental form and the set of the second fundamental forms of the submanifolds (in fact, the structural constants are given by the set of the Weingarten operators of the submanifolds). We prove in this paper that each N-dimensional Frobenius manifold can locally be represented as a potential flat torsionless submanifold in a 2N-dimensional pseudo-Euclidean space. By our construction this submanifold is uniquely determined up to motions. Moreover, in this paper we consider a nonlinear system, which is a natural generalization of the associativity equations, namely, the system describing all flat torsionless submanifolds in pseudo-Euclidean spaces, and prove that this system is integrable by the inverse scattering method.
description: 10 pages, Proceedings of the Workshop "Nonlinear Physics. Theory and Experiment. IV. Gallipoli (Lecce), Italy, June 22 - July 1, 2006
High-Energy Neutrino Production in Clusters of Galaxies
Creators: name: Hussain, Saqib
name: Batista, Rafael Alves
name: Pino, Elisabete M. de Gouveia Dal
name: Dolag, Klaus
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Clusters of galaxies can potentially produce cosmic rays (CRs) up to very-high energies via large-scale shocks and turbulent acceleration. Due to their unique magnetic-field configuration, CRs with energy $\leq 10^{17}$ eV can be trapped within these structures over cosmological time scales, and generate secondary particles, including neutrinos and gamma rays, through interactions with the background gas and photons. In this work, we compute the contribution from clusters of galaxies to the diffuse neutrino background. We employ three-dimensional cosmological magnetohydrodynamical simulations of structure formation to model the turbulent intergalactic medium. We use the distribution of clusters within this cosmological volume to extract the properties of this population, including mass, magnetic field, temperature, and density. We propagate CRs in this environment using multi-dimensional Monte Carlo simulations across different redshifts (from $z \sim 5$ to $z =0$), considering all relevant photohadronic, photonuclear, and hadronuclear interaction processes. We find that, for CRs injected with a spectral index $α= 1.5 - 2.7$ and cutoff energy $E_\text{max} = 10^{16} - 5\times10^{17} \; \text{eV}$, clusters contribute to a sizeable fraction to the diffuse flux observed by the IceCube Neutrino Observatory, but most of the contribution comes from clusters with $M \gtrsim 10^{14} \; M_{\odot}$ and redshift $ z \lesssim 0.3$. If we include the cosmological evolution of the CR sources, this flux can be even higher.
description: 14 pages, 31 figures, journal paper
Minimizing dilution in open stope mining with a focus on stope design and narrow vein longhole blasting
Creators: name: Clark, Lyndon Michael
Publisher: name: University of British Columbia
Year: 2009

description: This thesis presents the results of three years of research which focused on minimizing dilution in open stope mining. The research encompassed both stope design and narrow vein longhole blasting. A new empirical design approach has been developed for estimating unplanned dilution from open stope hangingwalls and footwalls. The resulting design charts are based on quantifiable measurements of overbreak/slough made with the Cavity Monitoring System (CMS), and were developed from a comprehensive database o f stoping histories compiled from six (6) Canadian underground open stoping operations. A new parameter termed ELOS (equivalent linear overbreak/slough) has been introduced and incorporated into the design charts as a measure of unplanned dilution. Theoretical justification for the design methodology has been demonstrated through a numerical modelling study examining the zone of relaxation around open stopes. Statistical methods, neural networks, and additional case histories have been used to validate the proposed design zones. This new approach to stope design is an improvement over existing methods in that it allows stope sizes to be determined based on an "acceptable" level of dilution rather than qualitative descriptions of stability such as: "stable"; "transition zone"; or "potentially unstable". In narrow vein open stope mining, even i f stopes are sized to be inherently stable (i.e. good stope design), blast induced overbreak can result in high levels of unplanned dilution. This study assessed the performance of three narrow vein blast patterns: the 3:2 pattern; the 2:1 (dice-five) pattern; and the 1:1 (stagger) pattern. The study was carried out at the Lupin Mine (NWT). The patterns were evaluated on the basis of: cost; blast damage potential; charge interaction; fragmentation; and tolerance to lapses in quality of drilling and loading practice. Guidelines have been developed regarding the choice and implementation o f narrow vein patterns.