cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Controlled Perturbation-Induced Switching in Pulse-Coupled Oscillator Networks
Creators: name: Neves, Fabio Schittler
name: Timme, Marc
Publisher: name: arXiv
Year: 2020
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Pulse-coupled systems such as spiking neural networks exhibit nontrivial invariant sets in the form of attracting yet unstable saddle periodic orbits where units are synchronized into groups. Heteroclinic connections between such orbits may in principle support switching processes in those networks and enable novel kinds of neural computations. For small networks of coupled oscillators we here investigate under which conditions and how system symmetry enforces or forbids certain switching transitions that may be induced by perturbations. For networks of five oscillators we derive explicit transition rules that for two cluster symmetries deviate from those known from oscillators coupled continuously in time. A third symmetry yields heteroclinic networks that consist of sets of all unstable attractors with that symmetry and the connections between them. Our results indicate that pulse-coupled systems can reliably generate well-defined sets of complex spatiotemporal patterns that conform to specific transition rules. We briefly discuss possible implications for computation with spiking neural systems.
Armutsmonitoring – das Instrument gegen Armut
Creators: name: Hümbelin, Oliver
name: Fluder, Robert
Publisher: name: BFH, Departement Soziale Arbeit
Year: 2020
Subjects: H Social Sciences (General)
HV Social pathology. Social and public welfare

description: Globalisierung, Digitalisierung und Krisen verändern die Armutsrisiken. Deshalb ist die Politik in der Armutsbekämpfung auf eine solide Faktenlage angewiesen. Die Berner Fachhochschule (BFH) hat gemeinsam mit Caritas Schweiz ein Modell entwickelt, das die Armutsbeobachtung im Land erheblich verbessern kann.
Welsh Wreck Web Research Project (North Cardigan Bay). On-line research into the Sinking of: RMS Leinster (Steamship)
Creators: name: Davies, Gareth J.S.
Publisher: name: Archaeology Data Service
Year: 2024

description: Welsh Wreck Web Research Project unpublished report series, 1
description: This project is to discover information relating to the history of the steamship RMS Leinster built by Laird Brothers Ltd, Birkenhead in 1896. The RMS Leinster was one of 4 ships named after Irish provinces to conduct mail and passenger services between Ireland and Great Britain. The RMS Leinster sailed the Kingstown (Dun Laoghaire) Dublin to Holyhead route. On Oct 10th 1918, the RMS Leinster was torpedoed shortly after departing Kingstown for Holyhead. The RMS Leinster attempted to return to Kingstown but was again struck by torpedoes and sank within 10 minutes. From records, 564 people lost their lives in the attack which included crew, postal sorters, civilians and military personnel. The timing of the attack almost resulted in the U.S.A pulling out of the Peace Agreement to end WW1. On Oct 16 1918, all U-boats were informed to return to Germany from patrol and the U-boat war conducted against Great Britain ceased. The RMS Leinster was sunk with the highest loss of life on an Irish owned ship.
Gate-controlled magnetic phase transition in a van der Waals magnet Fe$_5$GeTe$_2$
Creators: name: Tan, Cheng
name: Xie, Wen-Qiang
name: Zheng, Guolin
name: Aloufi, Nuriyah
name: Albarakati, Sultan
name: Algarni, Meri
name: Song, Jiangpeng
name: Partridge, James
name: Culcer, Dimitrie
name: Wang, Xiaolin
name: Yi, Jiabao
name: Xiong, Yimin
name: Tian, Mingliang
name: Zhao, Yu-Jun
name: Wang, Lan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnetic van der Waals (vdW) materials, including ferromagnets (FM) and antiferromagnets (AFM), have given access to the investigation of magnetism in two-dimensional (2D) limit and attracted broad interests recently. However, most of them are semiconducting or insulating and the vdW itinerant magnets, especially vdW itinerant AFM, are very rare. Here, we studied the anomalous Hall effect of a vdW itinerant magnet Fe$_5$GeTe$_2$ (F5GT) with various thicknesses down to 6.8 nm (two unit cells). Despite the robust ferromagnetic ground state in thin-layer F5GT, however, we show that the electron doping implemented by a protonic gate can eventually induce a magnetic phase transition from FM to AFM. Realization of an antiferromagnetic phase in F5GT highlights its promising applications in high-temperature antiferromagnetic vdW devices and heterostructures.
description: 27 pages
A structured covariance model for Douglas-fir PSP data and some implications for sampling
Creators: name: Northway, S.
Publisher: name: University of British Columbia
Year: 2009

description: The error structure resulting from the repeated measurements of permanent sample plots (PSPs) can be addressed using a general linear model. Maximum likelihood methods provide a unified approach for estimating the parameters and subsequent inferences. Utilizing a predicted error structure, the efficiency of proposed PSP sampling schemes can be compared, prior to sampling. This can be done because the sampling errors of the model parameters are independent of the dependent variable. A sampling scheme is defined by the independent variables' intended frequencies and a sample size. Statistical and cost efficiency can be calculated by combining the sampling scheme with the sampling costs and the predicted error structure. In the data set examined, the correlation in the error structure was constant among the measured increments within a plot. The third increment on a plot was no more independent of the first increment than the second. This symmetric error structure was a better fit than the more usually assumed autoregressive structure. The data set, with an assumed symmetric error structure, was used to address two questions as examples of how this type of analysis might be used. In the first example, two sampling schemes were compared. Sampling Scheme 1 involved three increments on 150 plots, resulting in a total of 450 increments at a cost of $540,000. Sampling Scheme 2 involved two increments on 150 plots and one increment on 111 plots, resulting in 411 increments at a cost of $642,000. The second scheme resulted in fewer increments, but more measurements and more plots. The two schemes had nearly identical statistical efficiencies. Scheme 2 was more efficient per increment, but less cost efficient. The cost efficiency of remeasuring the same PSP overwhelms the increased statistical efficiency of independent increments. However, for modelling purposes, repeated measurements from the same PSP does not represent an irreplaceable asset. If a PSP is lost to development, a reasonable cost recovery would be the cost of its last remeasurement and the first measurement of a replacement. As a second example, sampling Scheme 3 composed of 150 plots with a 5-year and a subsequent 10-year increment was compared to Scheme 4 which combined 141 plots with three 5-year increments and nine plots with one 5-year increment. Scheme 3 utilizes 300 increments at a cost of $420,000, while Scheme 4 utilizes 432 increments at a cost of $525,600. The parameter covariance matrices of Scheme 3 and 4 are nearly identical, resulting in the same precision in their respective estimates. Scheme 3 is therefore statistically more efficient per increment and is more cost efficient. Comparing these two schemes tests the trade off of skipping an intermediate measurement on all the plots against making all the measurements on a subset of the plots. Skipping an intermediate measurement is far more efficient, both statistically and financially.
Polarization squeezing by optical Faraday rotation
Creators: name: Sherson, Jacob F.
name: Molmer, Klaus
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that it is possible to generate continuous-wave fields and pulses of polarization squeezed light by sending classical, linearly polarized laser light twice through an atomic sample which causes an optical Faraday rotation of the field polarization. We characterize the performance of the process, and we show that an appreciable degree of squeezing can be obtained under realistic physical assumptions.
description: 4 pages, 4 figures
The biodegradation of quaternary ammonium compounds by mould fungi
Creators: name: Zheng, Yu
Publisher: name: University of British Columbia
Year: 2009

description: Didecyldirhethylarrmionium chloride (DDAC) has been described as one of the most effective quaternary ammonium compound (QAC) wood preservatives, based on laboratory experiments. Subsequently, QAC-treated stakes failed rapidly in field tests. It was suggested that the degradation of QACs by mould and stain fungi had reduced the efficacy of QACs. This thesis describes a study of the role that moulds play in limiting the performance of DDAC. Fungi were isolated from DDAC-treated stakelets placed in a field test site at UBC. Other fungal strains were obtained from culture collections. A comparison was made of their tolerance and ability to degrade DDAC. Experiments were performed both in solid malt agar and Vogel liquid media with, and without, DDAC. It was found that tolerance and ability to degrade DDAC shown by the fungal strains were common properties of many of the moulds studied. The metabolites produced by the action of moulds on DDAC were extracted by methylene chloride and analyzed by high performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS). The results showed that DDAC had been degraded by mould fungi, either by fission of the C-N bond or co-and (3-oxidation of the decyl group. Electrophoresis was performed to try to identify additional proteins arising from the presence of DDAC. New proteins bands were obtained in the extracellular supernatant. The DDAC concentration in liquid media was decreased when inoculated and incubated with the extracellular supernatant recovered from Verticillium bulbillosum grown in liquid media containing 250 ppm DDAC. No new proteins were obtained in the intracellular extract, and no degradation of the DDAC was recorded when the intracellular supernatant was incubated with DDAC. This suggested that DDAC degradation took place outside the fungal cell wall.
The ground state of clean and defected graphene: Coulomb interactions of massless Dirac fermions, pair-distribution functions and spin-polarized phases
Creators: name: Dharma-wardana, M. W. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: First-principles density functional calculations for graphene and defected graphene are used to examine when the quasi-2D electrons near the Fermi energy in graphene could be represented by massless fermions obeying a Dirac-Weyl (DW) equation. The DW model is found to be inapplicable to defected graphene containing even $\sim$3% vacancies or N substitution. However, the DW model holds in the presence of weakly adsorbed molecular layers. The possibility of spin-polarized phases (SPP) of DW-massless fermions in pure graphene is considered. The exchange energy is evaluated from the analytic pair-distribution functions as well as in $k$-space. The kinetic energy enhancement of the sipn-polarized phase nearly cancels the exchange enhancement, and the correlation energy plays a dominant residual role. The correlation energies are estimated via a model four-component 2D electron fluid whose Coulomb coupling matches that of graphene. While SPPs appear with exchange only, the inclusion of correlations suppresses them in ideal graphene.
description: ~7 pages, 6 figures
Σχεδίαση και προσομοίωση αρχιτεκτονικών 6Τ SRAM κυττάρων και συστοιχιών στα 22nm τεχνολογίας CMOS.
Creators: name: Αποστολίδης, Γεώργιος Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Πυκνότητα αποθήκευσης
Κατανάλωση ισχύος
6Τ SRAM cell
Storage density
Power consumption

description: Στην παρούσα διπλωματική εργασία παρουσιάζεται μια συγκριτική μελέτη 6Τ SRAM κυττάρων, η οποία περιλαμβάνει τρείς τοπολογίες συμμετρικών κυττάρων και μία ασύμμετρου κυττάρου. Οι συμμετρικές τοπολογίες αναφέρονται στο παραδοσιακό κύτταρο, στο λεπτό κύτταρο (thin cell) που αποτελεί το σημερινό βιομηχανικό πρότυπο και σε μία πρόσφατα προτεινόμενη τοπολογία, το υπέρ-λεπτό κύτταρο (ultra-thin cell). Η ασύμμετρη τοπολογία, σε αντίθεση με το τυπικό 6Τ SRAM κύτταρο, χρησιμοποιεί ασύμμετρη διαστασιολόγηση στους εγκάρσια συζευγμένους αντιστροφείς. Οι παραπάνω διατάξεις αποτελούν βιώσιμες επιλογές που συμβαδίζουν με την περαιτέρω πρόοδο της κλιμάκωσης της CMOS τεχνολογίας. Η αξιολόγηση τους αφορά την απόδοση επιφάνειας, την κατανάλωση ισχύος και τους χρόνους καθυστέρησης κατά την διάρκεια των λειτουργιών ανάγνωσης και εγγραφής. Η σχεδίαση των μεμονωμένων κυττάρων και των συστοιχιών τους πραγματοποιήθηκε σύμφωνα με τους κανόνες της τεχνολογίας των 22nm και στις προσομοιώσεις χρησιμοποιήθηκε το προηγμένο μοντέλο BSIM4. Η αρχιτεκτονική του λεπτού κυττάρου δείχνει να υπερέχει έναντι των ανταγωνιστών της, σε θέματα κατανάλωσης ισχύος και αποδοτικότητας λειτουργίας, ενώ επιτυγχάνει και την καλύτερη πυκνότητα αποθήκευσης.
description: In this work, a comparative study of 6T SRAM cell layouts is presented, including three symmetric cell topologies and one non-symmetric. The symmetric topologies refer to a traditional cell, a thin cell which is the current industry standard and a recently proposed ultra-thin cell. Asymmetric topology, unlike the standard 6T SRAM cell, uses asymmetrically sized cross-coupled inverters. All these cells are viable options which keep pace with the further progress of CMOS technology scaling. Evaluation concerns to area efficiency, power consumption and delay times during read and write operations. The individual cells and corresponding memory arrays are designed according to the rules of 22nm technology. For all the designs and simulations the advanced model BSIM4 is used. The architecture of thin cell appears to be superior to its competitors in both power dissipation and performance, while also achieves the best storage density.
Μελέτη των ειδών διγλωσσίας των αλλοεθνών του νομού Χανίων
Creators: name: Ιατροπούλου, Παναγιώτα Αντωνίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Ατομική Διγλωσσία
Κοινωνική Διγλωσσία
Γλωσσικός Ρατσισμός
Bilingualism
Diglossia
Linguistic Racism

description: Σκοπός της διατριβής ήταν η μελέτη των ειδών διγλωσσίας που παρουσιάζουν οι αλλοεθνείς κάτοικοι του νομού Χανίων, της Κρήτης. Αφού δόθηκαν οι απαραίτητοι ορισμοί, οι σχετικοί με το θέμα που διαπραγματευόταν η έρευνα, παρουσιάστηκε το θεωρητικό υπόβαθρο της Ατομικής και Κοινωνικής Διγλωσσίας, της Γλωσσικής προσαρμογής, των Στάσεων, Στερεοτύπων και Προκαταλήψεων απέναντι στους αλλοδαπούς καθώς και του στιγματισμού των δίγλωσσων από τον κοινωνικό περίγυρο και τον κρατικό μηχανισμό. Στη συνέχεια, παρουσιάστηκαν αναλυτικά ο σκοπός και οι στόχοι της έρευνας, η μέθοδος και η τεχνική συλλογής των δεδομένων, οι άξονες του ερωτηματολογίου, το προφίλ των αλλοδαπών και τα αποτελέσματα ανά άξονα διερεύνησης. Έπειτα, παρουσιάστηκαν τα τελικά συμπεράσματα με τις πιθανές συσχετίσεις κάποιων δημογραφικών παραγόντων με ορισμένους άξονες διερεύνησης.
description: The aim of the thesis was to study the species bilingualism posed by foreigners residents of Chania, Crete. After the necessary definitions are given, associated with the subject treated in the research, presented the theoretical background of the Personal and Social Bilingualism, language adaptation, attitudes, stereotypes and prejudices towards foreigners and stigmatization of bilingual from the social environment and the state apparatus. Then presented in detail the purpose and objectives of the research, the method and the data collection technique, the axons of the questionnaire, the profile of foreigners and the results of investigation axis. Then, the final conclusions were presented to the possible correlations of some demographic factors with some exploration shafts.
Effective Waves for Random Three-dimensional Particulate Materials
Creators: name: Gower, Artur Lewis
name: Kristensson, Gerhard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Physics (physics.class-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences
subject: 74J20, 45B05, 45E10, 82D30, 82D15, 78A48, 74A40

description: How do you take a reliable measurement of a material whose microstructure is random? When using wave scattering, the answer is often to take an ensemble average (average over time or space). By ensemble averaging we can calculate the average scattered wave and the effective wavenumber. To date, the literature has focused on calculating the effective wavenumber for a plate filled with particles. One clear unanswered question was how to extend this approach to a material of any geometry and for any source. For example, does the effective wavenumber depend on only the microstructure, or also on the material geometry? In this work, we demonstrate that the effective wavenumbers depend on only microstructure and not the geometry, though beyond the long wavelength limit there are multiple effective wavenumbers. We show how to calculate the average wave scattered from a random particulate material of any shape, and for broad frequency ranges. As an example, we show how to calculate the average wave scattered from a sphere filled with particles.
description: Software to reproduce the results presented is available from https://github.com/JuliaWaveScattering/EffectiveWaves.jl
Superpolished OAPs for WFIRST CGI
Creators: name: Roulet, Melanie
name: Hugot, Emmanuel
name: Atkins, Carolyn
name: Lemared, Sabri
name: Lombardo, Simona
name: Ferrari, Marc
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Exoplanet imaging requires super polished off-axis parabolas (OAP) with the utmost surface quality. In this paper we describe an innovative manufacturing process combining 3D printing and stress polishing, to create a warping harness capable of producing any off axis parabola profile with a single actuator. The warping harness is manufactured by 3D printing. This method will be applied to the production of the WFIRST coronagraph's off axis parabolas. The evolution of the warping harness design is presented, starting from a ring warping harness generating astigmatism, to an innovative thickness distribution harness optimised to generate an off axis parabola shape. Several design options are available for the prototyping phase, with their advantages and disadvantages which will be discussed.
Dust and PAH emission in the star-forming active nucleus of NGC 1097
Creators: name: Mason, R. E.
name: Levenson, N. A.
name: Packham, C.
name: Elitzur, M.
name: Radomski, J.
name: Petric, A. O.
name: Wright, G. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The nucleus of the nearby galaxy, NGC 1097, is known to host a young, compact (r < 9 parsec) nuclear star cluster as well as a low-luminosity active galactic nucleus (AGN). It has been suggested both that the nuclear stellar cluster is associated with a dusty torus, and that low-luminosity AGN like NGC 1097 do not have the torus predicted by the unified model of AGN. To investigate these contradictory possibilities we have acquired Gemini/T-ReCS 11.7 micron and 18.3 micron images of the central few hundred parsecs of this galaxy at < 45 parsec angular resolution, in which the nucleus and spectacular, kiloparsec-scale star-forming ring are detected in both bands. The small-scale mid-infrared (mid-IR) luminosity implies thermal emission from warm dust close to the central engine of this galaxy. Fitting of torus models shows that the observed mid-IR emission cannot be accounted for by dust heated by the central engine. Rather, the principal source heating the dust in this object is the nuclear star cluster itself, suggesting that the dust that we detect is not the torus of AGN unified schemes (although it is also possible that the dusty starburst itself could provide the obscuration invoked by the unified model). Comparison of Spitzer/IRS and Gemini/GNIRS spectra shows that, although polyaromatic hydrocarbon emission (PAH) bands are strong in the immediate circumnuclear region of the galaxy, PAH emission is weak or absent in the central 19 parsecs. The lack of PAH emission can probably be explained largely by destruction/ionization of PAH molecules by hard photons from the nuclear star cluster. If NGC 1097 is typical, PAH emission bands may not be a useful tool with which to find very compact nuclear starbursts even in low-luminosity AGN.
description: Accepted for publication in ApJ
Turbulence characteristics of switchbacks and non-switchbacks intervals observed by \emph{Parker Solar Probe}
Creators: name: Bourouaine, Sofiane
name: Perez, Jean C.
name: Klein, Kristopher C.
name: Chen, Christopher H. K.
name: Martinovic, Mihailo
name: Bale, Stuart D.
name: Kasper, Justin C.
name: Raouafi, Nour E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Space Physics (physics.space-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We use \emph{Parker Solar Probe} (\emph{PSP}) in-situ measurements to analyze the characteristics of solar wind turbulence during the first solar encounter covering radial distances between $35.7R_\odot$ and $41.7R_\odot$. In our analysis we isolate so-called switchback (SB) intervals (folded magnetic field lines) from non-switchback (NSB) intervals, which mainly follow the Parker spiral field. Using a technique based on conditioned correlation functions, we estimate the power spectra of Elsasser, magnetic and bulk velocity fields separately in the SB and NSB intervals. In comparing the turbulent energy spectra of the two types of intervals, we find the following characteristics: 1) The decorrelation length of the backward-propagating Elsasser field $z^-$ is larger in the NSB intervals than the one in the SB intervals; 2) the magnetic power spectrum in SB intervals is steeper, with spectral index close to -5/3, than in NSB intervals, which have a spectral index close to -3/2; 3) both SB and NSB turbulence are imbalanced with NSB having the largest cross-helicity, 4) the residual energy is larger in the SB intervals than in NSB, and 5) the analyzed fluctuations are dominated by Alfvénic fluctuations that are propagating in the \emph{sunward} (\emph{anti-sunward}) direction for the SB (NSB) turbulence. These observed features provide further evidence that the switchbacks observed by \emph{PSP} are associated with folded magnetic field lines giving insight into their turbulence nature.
description: Submitted to The Astrophysical Journal Letters
Colossal electroresistance in ferromagnetic insulating state of single crystal Nd$_0.7$Pb$_0.3$MnO$_3$
Creators: name: Jain, Himanshu
name: Raychaudhuri, A. K.
name: Ghosh, Nilotpal
name: Bhat, H. L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Colossal electroresistance (CER) has been observed in the ferromagnetic insulating (FMI) state of a manganite. Notably, the CER in the FMI state occurs in the absence of magnetoresistance (MR). Measurements of electroresistance (ER) and current induced resistivity switching have been performed in the ferromagnetic insulating state of a single crystal manganite of composition Nd$_0.7$Pb$_0.3$MnO$_3$ (NPMO30). The sample has a paramagnetic to ferromagnetic (Curie) transition temperature, Tc = 150 K and the ferromagnetic insulating state is realized for temperatures, T
description: 24 pages (RevTeX4 preprint), 8 figures, submitted to PRB
Central exclusive production at LHCb
Creators: name: Van Hulse, Charlotte
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The LHCb collaboration has measured central exclusive production of $J/ψ$, $ψ(2S)$, and $Υ$ mesons as well as $J/ψJ/ψ$, $J/ψψ(2S)$, $ψ(2S)ψ(2S)$, and $χ_cχ_c$ meson pairs in proton-proton collisions. The analyses of $Υ$ and charmonium pairs are performed at the centre-of-mass energies of 7 TeV and 8 TeV, and those of $J/ψ$ and $ψ(2S)$ are done at 7 TeV and 13 TeV. The analysis at 13 TeV involves the use of new shower counters. These allow a reduction in the background by vetoing events with activity in an extended region in rapidity. The measurements of central exclusive production at LHCb are sensitive to gluon distributions for Bjorken-$x$ values down to $2\times10^{-6}$ (at 13 TeV). An overview of the LHCb results is presented and compared to existing measurements of other experiments and theoretical calculations.
description: 6 pages, 5 figures, conference proceedings for New trends in high-energy physics 2019
Grasping rules and semiclassical limit of the geometry in the Ponzano-Regge model
Creators: name: Hackett, Jonathan
name: Speziale, Simone
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show how the expectation values of geometrical quantities in 3d quantum gravity can be explicitly computed using grasping rules. We compute the volume of a labelled tetrahedron using the triple grasping. We show that the large spin expansion of this value is dominated by the classical expression, and we study the next to leading order quantum corrections.
description: 18 pages, 1 figure
Ο κοινωνικός χαρακτήρας των ιερών κανόνων
Creators: name: Παπαδημητρίου, Μαρία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Ιεροί κανόνες
Δίκαιο Εκκλησίας
Επιτίμιο
Sacred Rules
Church Law
Penalty for breaking the Sacred Rules

description: Σκοπός της διατριβής ήταν η μελέτη της κοινωνικής μέριμνας της Εκκλησίας, όπως αποκρυσταλλώνεται στα κείμενα των ιερών κανόνων και το ενδιαφέρον της για την εφαρμογή τους. Αρχικά, εξετάσαμε τον σκοπό των ιερών κανόνων και τον ανθρωποκεντρικό χαρακτήρα τους. Στη συνέχεια, αναφερθήκαμε στην αξία των ιερών κανόνων καθώς, και στην σχέση που υπάρχει μεταξύ Εκκλησίας και Δικαίου. Έπειτα, παρουσιάσαμε αναλυτικά τους κανόνες που αφορούν το φιλανθρωπικό έργο της Εκκλησίας και δώσαμε την ερμηνεία τους χρησιμοποιώντας πληθώρα πηγών. Ακόμη, αναφερθήκαμε διεξοδικά και λεπτομερώς στις «αγάπες» και τις «λογείες» ως φιλανθρωπική δράση της Εκκλησίας, τους οποίους ερμηνεύσαμε χρησιμοποιώντας έγκυρες πηγές. Στη συνέχεια παρουσιάσαμε αναλυτικά τους κανόνες που ασχολούνται με το ζήτημα της μοιχείας, της διάλυσης του μυστηρίου του γάμου, των αμβλώσεων και των ακούσιων και εκούσιων φόνων, τους οποίους αναλύσαμε διεξοδικά και προς όλες τις κατευθύνσεις. Ασχοληθήκαμε επιπλέον με την επιβολή των επιτιμίων για κάθε περίπτωση, καθώς αυτή ποικίλλει, εξαιτίας των συνθηκών. Τέλος, παρουσιάσαμε τα γενικά, αλλά και τα επιμέρους συμπεράσματα του αντικειμένου που πραγματεύονταν η εργασία.
description: The aim of the thesis was to study the welfare of the Church, as is reflected in the texts of sacred rules and its interest for their implementation. Initially, we looked at the purpose of sacred rules and their anthropocentric nature. Then we discuss the value of sacred rules, and to the relationship that exists between the Church and the law. Next, we detail the rules relating to the charitable work of the Church and gave their interpretation using a plethora of sources. Still, we discuss thoroughly and in detail in the "agapes" and "logeies" as the Church's charity action, which interpreted using authoritative sources. Then we present detailed rules dealing with the issue of adultery, the dismantling of the sacrament of marriage, abortion and involuntary and voluntary murders, whom we analyzed in depth and in all directions. We dealt with the imposition of penalty for each case, as this varies because of treaties. Finally, we present the General, but also the individual conclusions of the object discussed the job.
Conservative chaotic map as a model of quantum many-body environment
Creators: name: Rossini, Davide
name: Benenti, Giuliano
name: Casati, Giulio
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the dynamics of the entanglement between two qubits coupled to a common chaotic environment, described by the quantum kicked rotator model. We show that the kicked rotator, which is a single-particle deterministic dynamical system, can reproduce the effects of a pure dephasing many-body bath. Indeed, in the semiclassical limit the interaction with the kicked rotator can be described as a random phase-kick, so that decoherence is induced in the two-qubit system. We also show that our model can efficiently simulate non-Markovian environments.
description: 8 pages, 4 figures
Ο έρωτας στον Πλάτωνα
Creators: name: Μπαντή, Ελευθερία Λεωνίδα
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Πλάτωνας
έρωτας
ωραίο
Plato
love
nice

description: Σκοπός της διατριβής ήταν η μελέτη του έρωτα σύμφωνα με την άποψη του Πλάτωνα. Εξετάσαμε αρχικά τις διαδεδομένες απόψεις της εποχής του στο μείζον αυτό ζήτημα με αποκορύφωμα την άποψη του Πλάτωνα. Στη συνέχεια παρουσιάσαμε αναλυτικά την σύνδεση του έρωτα με την γνώση, την φιλία, και τον λόγο, καθώς και τα πνευματικά οφέλη των πραγματικά ερωτευμένων. Ακόμη αναφερθήκαμε αναλυτικά στην διάκριση του ετερόφυλου έρωτα και του έρωτα του ωραίου σώματος ,στον έρωτα των τεχνών και των επιστημών που έχουν ως αποκορύφωμα την σταδιακή θέαση του καθ’ αυτού ωραίου που είναι αιώνιο κ άφθαρτο. Ένα άλλο θέμα που θίξαμε ήταν η χειραγώγηση της ψυχής, εφόσον επηρεάζεται από τον έρωτα και μπορεί να στέκεται στην εφήμερη χαρά ή μπορεί να οδηγήσει σε ένα ανώτερο επίπεδο, την θέαση του απόλυτα ωραίου. Ασχοληθήκαμε επιπλέον με την παρουσίαση του έρωτα ως δαίμονα , εξαιτίας των ομοιοτήτων της συμπεριφοράς του δαίμονα με αυτή των ερωτευμένων καθώς προκαλούνται ανάλογα συναισθήματα.
description: The aim of the present thesis was the study of love, according to Plato’s views. We examined the widespread views in Plato’s day in this major issue of the matter of love. Then we presented the connection of love with knowledge, friendship ,speech and the mental benefits of the people who are really in love .Furthermore , we analyzed the distinction of heterosexual love and the love of a nice body ,the love of the art and science to reach to the highlight ,which is the nice in it ’s own right which appears gradually and it is immortal and indestructible. We also examined the guidance of the soul , which is affected from love and it can stand in evergreen happiness or it is possible to lead to the highest level , the viewing of the absolutely nice . Another aim of this study was to examine the presentation of love as a demon because of the similarities of the behavior of the demon and true lovers, as both situations cause alike feelings.
Probe the R-parity Violating Supersymmetry Effects in the $B^0_s-\bar{B}^0_s$ Mixing
Creators: name: Wang, Ru-Min
name: Lu, G. R.
name: Wang, En-Ke
name: Yang, Ya-Dong
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The recent measurements of the $B_s$ mass difference $ΔM_s$ by the CDF and DØ collaborations are roughly consistent with the Standard Model predictions, therefore, these measurements will afford an opportunity to constrain new physics scenarios beyond the Standard Model. We consider the impact of the R-parity violating supersymmetry in the $B^0_s-\bar{B}^0_s$ mixing, and use the latest experimental results of $ΔM_s$ to constrain the size of the R-parity violating tree level couplings in the $B^0_s-\bar{B}^0_s$ mixing. Then, using the constrained R-parity violating parameter space from $ΔM_s$, we show the R-parity violating effects on the $B_s$ width difference $ΔΓ_{s}$.
description: 11 pages, 4 figures, to appear in High Energy Physics And Nuclear Physcis
Οικονομική κρίση και ψυχική υγεία: ο ρόλος της αλληλεγγύης σε συνθήκες κρίσης
Creators: name: Σταμπλιάκας, Γεώργιος Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Ψυχική υγεία, σύστημα ψυχικής υγείας, ψυχολογιοποίηση
οικονομική κρίση, κρίση, κοινωνικό κράτος, Μ.Μ.Ε.
Δίκτυα κοινωνικής αλλυλεγγύης, κοινωνική αλληλεγγύη
Mental healt, system of mental health, psychologitation
Economic crisis, crisis, welfare state
Social solidarities, social solidarity networks

description: Σκοπός της παρούσας διατριβής ήταν η μελέτη του φαινομένου της οικονομικής και κοινωνικής κρίσης στην Ελλάδα, οι επιπτώσεις του φαινομένου αυτού στην ψυχική υγεία του πληθυσμού αλλά και στο ελληνικό σύστημα ψυχικής υγείας και τέλος ο ρόλος των δικτύων κοινωνικής αλληλεγγύης σε στιγμές οικονομικής και κοινωνικής κρίσης. Για την επίτευξη του σκοπού αυτού πραγματοποιήθηκε βιβλιογραφική έρευνα. Πιο συγκεκριμένα η μελέτη χωρίζεται σε τρία κεφάλαια. Στο πρώτο κεφάλαιο μελετάται η έννοια της κρίσης και το πώς αυτή αντανακλάται στην ελληνική κοινωνική πραγματικότητα. Στο δεύτερο κεφάλαιο γίνεται αναφορά στις επιπτώσεις του φαινομένου αυτού στην ψυχική υγεία του πληθυσμού και στο ελληνικό σύστημα ψυχικής υγείας και στο τρίτο κεφάλαιο ερευνάται ο ρόλος των δικτύων κοινωνική αλληλεγγύης σε στιγμές οικονομικής και κοινωνικής κρίσης.
description: The aim of this thesis was the study of the phenomenon of economic crisis in Greece, the impact of this phenomenon on the mental health of the population and on the greek mental health system ,and the study of the role of social solidarity networks in the moment of social and economic crisis. More specifically the study divided into three chapters. At the first chapter studies the concept of crisis and how it reflected in the Greece social reality. At the second chapter refer to the impact of the phenomenon of crisis on the mental health of the population and on the Greece mental health system and the third chapter investigates the role of the social solidarities networks in times of social and economic crisis.
Θρησκευτική Συνείδηση και Ψυχικές Συγκρούσεις
Creators: name: Κουτσοσίμος, Ιωάννης Εμμανουήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Θρησκευτική Συνείδηση
Ψυχικές Συγκρούσεις
Ψυχολογία, Ποιμαντική
Religious Consciousness
Psychic Conflicts
Psychology, Pastoral

description: Σκοπός της διπλωματικής εργασίας ήταν η παρουσίαση της ύπαρξης της θρησκευτικής συνείδησης σε κάθε πιστό και η φανέρωση των ψυχικών συγκρούσεων μέσα από τη συνείδηση αυτή. Αρχικά, έγινε αναφορά στην ερμηνεία της θρησκευτικής συνείδησης, στο πως δρα ο άνθρωπος μέσα από αυτή, στο ποιες είναι οι απαρχές της τόσο μέσα από τις αντιλήψεις των φιλοσόφων, όσο και μέσα από τη θεώρηση της κατά τους πρώτους χριστιανικούς αιώνες, αλλά και στην επίδρασή της από τη πίστη και το νου του ανθρώπου. Στη συνέχεια, έγινε ανάπτυξη των ψυχικών συγκρούσεων στο τρόπο με τον οποίο ξεκινάνε, στο τι ακριβώς συμβαίνει μέσα στον άνθρωπο τη στιγμής της εμφάνισής τους, στις συνέπειες που έχουν στη συμπεριφορά του ανθρώπου, αλλά και στο οργανικό/ψυχικό του κομμάτι, και στο ποια είναι η γενικότερη στάση του ανθρώπου. Τέλος, τονίζεται η σημαντικότητα της συνύπαρξης της ψυχολογίας και της ποιμαντικής για την επίλυση των συγκρούσεων και την επαναφορά της καθαρής και υγειούς συνείδησης μέσα στον άνθρωπο, αλλά και της δράσης των καθοδηγητών. Αυτό επιτυγχάνεται από τη μια με τη ψυχοθεραπεία και την αυτογνωσία, και από την άλλη με τη συμμετοχή του ανθρώπου στο μυστήριο της εξομολόγησης.
description: The aim of this thesis was the presentation of the existence of religious consciousness in every believer and the manifestation of psychic conflicts through consciousness. Initially, there was reference to the interpretation of religious consciousness, how does the man act through this, in what are the origins of both through perceptions of philosophers, as well as through the endorsement of the early Christian centuries, but also the impact of the faith and the mind of man. Then it became expatiation of psychic conflicts on how it starts, what exactly is going on inside the man the moment of their appearance, the effects on human behavior, but also in organic/psychic part, and what is the general attitude of man. Finally, it is highlighted the importance of the coexistence of psychology and pastoral for the resolution of conflicts and the restoration of the pure and healthy consciousness in man, but also the action of mentors. This is accomplished by, on the one side, with psychotherapy and self - awareness, and, on the other side, with human participation in the sacrament of confession.
Families of curves orthogonal to the lines $y=mx-2m-m^3$
Creators: name: Ahmed, Zafar
name: Telkar, Pallavi S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics

description: The family of lines $y=mx-2m-m^3$, are well known to be normal to the parabola $y^2=4x$. However, this family of lines is normal to a family of curves of which this parabola is just one member. Here, by solving an interesting first order and third degree ODE, we bring out these curves. The resulting one set of curves are "parabola-like" but non-standard ones and the other family is not even "parabola like".
description: 4 pages and 2 figures: To appear in Mathematical Gazette (UK) in July 2021
Αναμετάφραση και Γλωσσική Επικαιροποίηση: H νεανική ιδιόλεκτος στο The Catcher in the Rye, του J.D.Salinger
Creators: name: Γρηγοριάδου, Χρυσούλα Αναστασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Αναμετάφραση
Γλωσσική ποικιλότητα
Νεανική ιδιόλεκτος
Retranslation
Linguistic variety
Teenage slang

description: Σύμφωνα με τον Antoine Berman (1990: 1), το μεταϕράζειν είναι μια δραστηριότητα που υπόκειται στον χρόνο και διαθέτει μια προσίδια χρονικότητα: τη χρονικότητα του παρωχημένου και του ανολοκλήρωτου. Συνεπώς, κάθε μετάφραση επισύρει αναπόφευκτα την αναμετάφρασή της όμως, παρότι η αναμετάφραση συνδέεται εκ προοιμίου με τη μεταφραστική πράξη, ελάχιστα έχει μελετηθεί σε μεταφρασεολογικό επίπεδο. Η παρούσα διπλωματική εργασία επικεντρώνεται στην πρόσφατη αναμετάφραση στα ελληνικά ενός από τα σπουδαιότερα έργα του 20ου αιώνα, το The Catcher in the Rye του J. D. Salinger. Η (ανα)μεταφράστριά του επιχειρεί τη γλωσσική επικαιροποίηση με σεβασμό τόσο στην πρωτότυπη γλώσσα, όσο και στον σύγχρονο αναγνώστη. Στο πλαίσιο αυτής της εργασίας, αναλύονται τα εγγενή χαρακτηριστικά του λογοτεχνήματος, η παιδαγωγική διάστασή του και η γλωσσική ποικιλότητα. Επιπλέον, καταγράφονται οι μεταφραστικές τεχνικές που επιστρατεύονται κατά τη διαπολιτισμική μεταφορά ιδιολεκτικών και ιδιοπολιτισμικών στοιχείων, με έμφαση στη νεανική ιδιόλεκτο, ώστε να επιτευχθεί ένα λειτουργικό αποτέλεσμα για ένα νέο αναγνωστικό κοινό.
description: The phenomenon of retranslation is widespread in practice, and yet its motivations remain relatively underexplored. However, one very prevalent justification for this repetitive act is encapsulated in the work of Antoine Berman who claims that an initial translation is necessarily ‘blind and hesitant’ [aveugle et hésitante] (1990: 5), while retranslation alone can ensure ‘the introduction of the foreign work into the receiving culture’. [la révélation dřune oeuvre étrangère dans son être propre à la culture réceptrice] (1995: 57). The present thesis focuses on the recent Greek retranslation of one of the most celebrated works of literature, The Catcher in the Rye by J.D. Salinger. The (re)translator attempts a linguistic update of the book, taking into account both the original language and the target audience. In this framework, the inherent characteristics of the book, its pedagogical purpose and linguistic variety are being analyzed. Furthermore, an attempt is made to determine the major translation techniques employed in transferring the cultural element, and more specifically teenage slang, with a view to a functional text for a new readership.
Data driven Dirichlet sampling on manifolds
Creators: name: Prado, Luan S
name: Ritto, Thiago G
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This article presents a novel method to sampling on manifolds based on the Dirichlet distribution. The proposed strategy allows to completely respect the underlying manifold around which data is observed, and to do massive samplings with low computational effort. This can be very helpful, for instance, in neural networks training process, as well as in uncertainty analysis and stochastic optimization. Due to its simplicity and efficiency, we believe that the new method has great potential. Three manifolds (two dimensional ring, Mobius strip and spider geometry) are considered to test the proposed methodology, and then it is employed to an engineering application, related to gas seal coefficients.
description: 19 pages, 10 figures, 38 references
PANDORA S.O.S. (Sensor Operating System): Δημιουργία εξειδικευμένου Λειτουργικού Συστήματος για την διαχείριση αισθητήρων και ενεργοποιητών συνδεδεμένων σε εξελιγμένο δίκτυο I2C
Creators: name: Κανλής, Δημήτριος Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Ρομποτική
Αισθητήρες
Ενεργοποιητές
I2C
Robotics
Sensors
Actuators

description: Στην εργασία παρουσιάζεται ο τρόπος με τον οποίο μετατρέπεται ένα σύστημα διαχείρισης αισθητήρων και ενεργοποιητών ρομποτικών εφαρμογών σε δικτυακό, βασισμένο στο πρωτόκολλο I2C. Το εξειδικευμένο λειτουργικό σύστημα διαχειρίζεται δυναμικά τις επικοινωνίες και τα δεδομένα μεταξύ των μελών του δικτύου. Τα τεχνικά χαρακτηριστικά των αισθητήρων και των ενεργοποιητών καθώς και οι φυσικοί περιορισμών των μετρούμενων μεγεθών λαμβάνονται υπ όψιν για την βελτιστοποίηση της αξιοπιστίας του συστήματος.
description: This paper presents the requirements and actions performed to convert the sensor and actuator management system of a robotic application to a network-based system using the I2C protocol. A dedicated operating system is utilized to dynamically manage the communication and the data flow between the network members. The technical characteristics of the sensors and actuators as well as the physical limitations of the measured quantities are taken into account to improve the reliability of the system.
description: Σε συνεργασία με το τμήμα Λογιστικής και Χρηματοοικονομικής (Πανεπιστήμιο Μακεδονίας)
He~I Emission in the Orion Nebula and Implications for Primordial Helium Abundance
Creators: name: Porter, R. L.
name: Ferland, G. J.
name: MacAdam, K. B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We apply a recently developed theoretical model of helium emission to observations of both the Orion Nebula and a sample of extragalactic H II regions. In the Orion analysis, we eliminate some weak and blended lines and compare theory and observation for our reduced line list. With our best theoretical model we find an average difference between theoretical and observed intensities $ = 6.5%$. We argue that both the red and blue ends of the spectrum may have been inadequately corrected for reddening. For the 22 highest quality lines, with $3499 Å\leλ\le6678 Å$, our best model predicts observations to an average of 3.8%. We also perform an analysis of the reported observational errors and conclude they have been underestimated. In the extragalactic analysis, we demonstrate the likelihood of a large systematic error in the reported data and discuss possible causes. This systematic error is at least as large as the errors associated with nearly all attempts to calculate the primordial helium abundance from such observations. Our Orion analysis suggests that the problem does not lie in the theoretical models. We demonstrate a correlation between equivalent width and apparent helium abundance of lines from extragalactic sources that is most likely due to underlying stellar absorption. Finally, we present fits to collisionless case-B He I emissivities as well as the relative contributions due to collisional excitations out of the metastable $2s {}^{3}S$ term.
description: accepted for publication in ApJ
Welsh Wreck Web Research Project (North Cardigan Bay). On-line research into the wreck of the: Lerry of Aberdovey
Creators: name: Perks, Graeme
Publisher: name: Archaeology Data Service
Year: 2024

description: Welsh Wreck Web Research Project unpublished report series, 1
description: The Lerry was a wooden smack built by John Jones at Ynyslas, Aberdovey in 1871 for Jones and Co of Aberdovey. The Lerry carried various cargo's but mainly coal, slates and salt between Wales, England and Ireland. The pattern of voyages of Lerry stayed similar with the next owner Morris Davies of Aberdovey who became the master. The last listed owner of the Lerry, David Davies of Aberystwyth was also the master and followed similar voyages. The Lerry foundered on 18th December 1893 attempting to enter Aberystwyth harbour. The harbour master signalled them to enter and after crossing the bar the wind dropped and the heavy sea washed the vessel into the trap at the entrance and smashed it against the groynes. The crew were saved but the Lerry was a total wreck and most of the cargo was washed away by the next tide.
Integrated photonics incorporating 2D materials for practical applications
Creators: name: Moss, David J.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: On-chip integration of 2D materials with exceptional optical properties provides an attractive solution for next-generation photonic integrated circuits to address the limitations of conventional bulk integrated platforms. Over the past two decades, significant advancements have been made in the interdisciplinary field of 2D material integrated photonics, greatly narrowing the gap between laboratory research and industrial applications. In this paper, we provide a perspective on the developments of this field towards industrial manufacturing and commercialization. First, we review recent progress towards commercialization. Next, we provide an overview of cutting-edge fabrication techniques, which are categorized into large-scale integration, precise patterning, dynamic tuning, and device packaging. Both the advantages and limitations of these techniques are discussed in relation to industrial manufacturing. Finally, we highlight some important issues related to commercialization, including fabrication standards, recycling, service life, and environmental implications.
description: 66 pages, 9 figures, 367 references