cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Botanical Composition of the Park Grass Plots at Rothamsted 1856-1976
Creators: name: Rothamsted Experimental Station
Publisher: name: Lawes Agricultural Trust
Year: 1978
Subjects: subject: botanical composition
subject: park grass long-term experiment
subject: nitrogen
subject: sodium
subject: liming

description: Scanned PDF of Botanical Composition of the Park Grass Plots at Rothamsted 1856-1976
description: Botanical Composition of the Park Grass Plots at Rothamsted 1856-1976...............................1
Introduction........................................................................................6
Histrory of the Work on Botanical Composition of the Plots and the Need For Further Analysis........7
Method of Sampling and Plots and Sub-plots Sampled During 1973-76...................................10
Results.............................................................................................11
1. Changes With Time................................................................................11
A. Plots Not Receiving Nitrogen.....................................................................11
B. Plots Receiving Nitrogen as Ammonium Sulphate....................................................14
C. Plots Receiving Nitrogen as Sodium Nitrate.......................................................17
D. Plots Receiving Organic Manures..................................................................19
2. Changes Induced by the New Liming Scheme.........................................................20
3. Comparison of the Botanical Compositin of Plots 3, 7 and 14 in 1975 and 1976.....................23
Dicussion and Conclusions...........................................................................23
Changes With Time...................................................................................23
Changes With Lime...................................................................................26
Association Between Botanical Composition and Yield.................................................27
Relationship Between Fertiliser Treatment and Botanical Composition ................................29
Effect of Season on Botanical Composition...........................................................30
General ............................................................................................31
Future Work.........................................................................................33
Acknowledgements....................................................................................36
References..........................................................................................36
Tables..............................................................................................40
Notes on Tables 7-45................................................................................46
Using calculators to teach algebra : from numbers to operations to structure
Creators: name: Murphy, Maureen
Publisher: name: University of British Columbia
Year: 2009

description: The problems of teaching mathematics to unmathematical high school students are described and analyzed in terms of differences in language, especially syntax, between arithmetic and algebra. There follows a detailed description of a demonstrably successful alternative to so-called regular mathematics courses which depends essentially on the use of electronic calculators. Over three years, 274 students in 11 of the author's own mathematics classes, where algebra was taught in this alternative way, were observed for signs of mathematical insight. Relevant anecdotes were recorded, analyzed, and categorized and are discussed so as to justify the claims that, by using electronic calculators, teachers can shift the attention of students from numbers to mathematical operations and from operations to the overall structure of algebraic expressions, and that students who are taught algebra in this way reveal spontaneously, both orally and in writing, that they have an understanding of algebra. Finally, it is suggested that the difficulties encountered by many students in high school algebra could be reduced or eliminated if unmathematical students were taught in this way alone and mathematical students were taught in this way first, before proceeding to so-called regular mathematics courses.
Observation of Phase Separation in a Strongly-Interacting Imbalanced Fermi Gas
Creators: name: Shin, Y.
name: Zwierlein, M. W.
name: Schunck, C. H.
name: Schirotzek, A.
name: Ketterle, W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We have observed phase separation between the superfluid and the normal component in a strongly interacting Fermi gas with imbalanced spin populations. The in situ distribution of the density difference between two trapped spin components is obtained using phase-contrast imaging and 3D image reconstruction. A shell structure is clearly identified where the superfluid region of equal densities is surrounded by a normal gas of unequal densities. The phase transition induces a dramatic change in the density profiles as excess fermions are expelled from the superfluid.
description: 5 pages, 7 figures
Scattering of ultracold neutrons from rough surfaces of metal foils
Creators: name: Döge, Stefan
name: Hingerl, Jürgen
name: Lychagin, Egor V.
name: Morkel, Christoph
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The transparency of metal foils for ultracold neutrons (UCNs) plays an important role in the design of future high-density UCN sources, which will feed a number of fundamental physics experiments. In this work, we describe and discuss the measured transmission of a collimated beam of very slow neutrons (UCNs and very cold neutrons) through foils of Al, Cu, and Zr of various thicknesses at room temperature. Our goal was to separate scattering and absorption in the sample bulk from surface scattering, and to quantify the contribution of the surface. We were able to demonstrate that the surface roughness of these foils caused a significant fraction of UCN scattering. The surface roughness parameter $b$ extracted from UCN measurements was shown to be of the same order of magnitude as the surface parameter determined by atomic-force microscopy. They lie in the order of several hundreds of angstroms. Using the formalism developed here, transmission data from previous neutron-optical experiments were re-analyzed and their surface roughness parameter $b$ was extracted.
description: 8 pages, 2 figures, 5 tables
Different Constraints for Livestock Production in The Changing Climate Scenario
Creators: name: Anbupriyan T, Keerthika S and Lavanya K
Publisher: name: Bio Vet Innovator Magazine
Year: 2024

description: The majority of mammalian biomass on Earth is made up of livestock. More than a billion poor people rely on livestocks for their daily needs. Climate is the average weather over a lengthy period of time, usually thirty years. Climate change needs to be evaluated at the household level in order to focus the ones that are deprived and vulnerable who depends on agriculture. One of the main causes of climate change is anthropogenic activity. Climate change, on the other hand, poses a threat to livestock production due to its effects on biodiversity, animal illnesses, animal reproduction, water availability, feed crop and forage quality, and milk production We can broadly categorize the impacts of climate change into direct and indirect effects.
Μέθοδος εκτίμησης της ημερήσιας πορείας των εκπομπών από την κυκλοφορία των οχημάτων σε αστική περιοχή:
Creators: name: Δονίκη, Σταματία Σταύρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Ατμόσφαιρα
Εκπομπές
Κυκλοφορία
Atmosphere
Emissions
Traffic

description: Η εκτίμηση των εκπομπών από την κυκλοφορία σε μια αστική περιοχή με τη συνήθη μέθοδο της μέτρησης του φόρτου κυκλοφορίας είναι μια διαδικασία που απαιτεί χρόνο και μεγάλο όγκο δεδομένων εισόδου. Οι εναλλακτικές μέθοδοι βασίζονται επίσης σε πολύπλοκα υπολογιστικά εργαλεία – μοντέλα. Η παρούσα μελέτη είναι μια προσπάθεια εκτίμησης της ημερήσιας πορείας αυτών των εκπομπών από ήδη υπάρχουσες μετρήσεις συγκέντρωσης, από σταθμούς του δικτύου ποιότητας του αέρα μιας περιοχής. Η μεθοδολογία που ακολουθείται είναι ιδιαίτερα απλή, με άμεσα αποτελέσματα και βασίζεται στην αντιστροφή της εξίσωσης του Gauss για τη διασπορά. Τα περισσότερα από τα απαιτούμενα δεδομένα είναι διαθέσιμα από δημόσιους οργανισμούς, στα πλαίσια της Παρακολούθησης της Ποιότητας του Αέρα, ενώ τα υπόλοιπα μπορούν να προκύψουν εύκολα από απλούς υπολογισμούς. Η εφαρμογή της μεθόδου έδωσε αποτελέσματα που συμφωνούν με την αρχική υπόθεση της μελέτης, καθώς οι εκπομπές που υπολογίζονται προκύπτουν ιδιαίτερα αυξημένες σε σχέση με το υπόλοιπο εικοσιτετράωρο, για τις ώρες αιχμής. Σημαντική συνεισφορά έχουν και οι κλάσεις ευστάθειας που μεταβάλλονται και διαμορφώνουν κατά μεγάλο ποσοστό την ημερήσια πορεία των εκπομπών. Σημαντικό σημείο της μελέτης είναι επίσης και το περιβάλλον του κάθε σταθμού, αφού τα δεδομένα προέρχονται από έναν αστικό – κυκλοφορίας, έναν αστικό – υποβάθρου και δύο αστικούς – βιομηχανικούς σταθμούς.
description: The estimate of emissions of traffic in an urban area with the usual method of traffic load measurements is a time-consuming, data-demanding procedure. The alternative methods are based upon complex computational tools – models. This study is an effort of estimating the diurnal variation of traffic emissions, using already existing concentration measurements, taken from the stations of the Air Quality Network of a region. The methodology to be followed is simple, giving immediate results and is based on the inverse Gauss equation of dispersion. Most of the required data is available by public organizations, in the frame of the Monitoring of Air Quality, whereas any additional data needed can be easily calculated. The application of the method provided results which agree with the prime assumption of the study, since the calculated emissions turn out to be evidently increased during the rush hours relatively to the rest of the 24h-period. There is also a major contribution of the changing stability classes of the atmosphere, which shape at a great percentage the diurnal variation of the emissions. Another significant part is the environment of each measuring station, since the data comes from an urban – traffic, an urban – residential and two urban – industrial stations.
Palabos-npFEM: Software for the Simulation of Cellular Blood Flow (Digital Blood)
Creators: name: Kotsalos, Christos
name: Latt, Jonas
name: Chopard, Bastien
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Palabos-npFEM is a computational framework for the simulation of blood flow with fully resolved constituents. The software resolves the trajectories and deformed state of blood cells, such as red blood cells and platelets, and the complex interaction between them. The tool combines the lattice Boltzmann solver Palabos for the simulation of blood plasma (fluid phase), a finite element method (FEM) solver for the resolution of blood cells (solid phase), and an immersed boundary method (IBM) for the coupling of the two phases. Palabos-npFEM provides, on top of a CPU-only version, the option to simulate the deformable bodies on GPUs, thus the code is tailored for the fastest supercomputers. The software is integrated in the Palabos core library, and is available on the Git repository https://gitlab.com/unigespc/palabos. It offers the possibility to simulate various setups, e.g. several geometries and blood parameters, and due to its modular design, it allows external solvers to readily replace the provided ones.
Fast Spectral Fitting of Hard X-Ray Bremsstrahlung from Truncated Power-Law Electron Spectra
Creators: name: Brown, J. C.
name: Kasparova, J.
name: Massone, A. M.
name: Piana, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Hard X-Ray bremsstrahlung continuum spectra, such as from solar flares, are commonly described in terms of power-law fits, either to the photon spectra themselves or to the electron spectra responsible for them. In applications various approximate relations between electron and photon spectral indices are often used for energies both above and below electron low-energy cutoffs. We examine the form of the exact relationships in various situations, and for various cross-sections, showing that empirical relations sometimes used can be highly misleading and consider how to improve fitting procedures. We obtain expressions for photon spectra from single, double and truncated power-law electron spectra for a variety of cross-sections and for the thin and thick target models and simple analytic expressions for the Bethe-Heitler cases. We show that above a low-energy cutoff the Kramers and Bethe-Heitler results match reasonably well with results for exact cross-sections up to energies around 100 keV; that below the low-energy cutoff, Kramers and other constant spectral index forms commonly used are very poor approximations to accurate results; but that our analytical forms are a very good match. Analytical forms of the Bethe-Heitler photon spectra from general power-law electron spectra are an excellent match to exact results for both thin and thick targets and they enable much faster spectral fitting than evaluation of the full spectral integrations.
description: 7 pages, 4 figures, submitted to Astronomy and Astrophysics
Τεχνικοοικονομική ανάλυση και οργάνωση παραγωγής στον πρώην Δήμο Κερκίνης του Νομού Σερρών:
Creators: name: Γεωργιλάς, Ιωάννης Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: οργάνωση γεωργικής παραγωγής
τεχνικοοικονομική ανάλυση
σταθμισμένος προγραμματισμός στόχων
organization of agricultural production
techno-economic analysis
weighted scheduling objectives

description: Στόχος της παρούσας μεταπτυχιακής διατριβής αποτελεί η τεχνικοοικονομική ανάλυση και η οργάνωση της γεωργικής παραγωγής της περιοχής του πρώην Δήμου Κερκίνης του Νομού Σερρών. Για τον σκοπό αυτό στο πρώτο μέρος γίνεται ανάλυση των τεχνικοοικονομικών συντελεστών και παρουσιάζονται τα σημαντικότερα οικονομικά αποτελέσματα για κάθε δημοτικό διαμέρισμα, αλλά και για το σύνολο της περιοχής. Στο δεύτερο μέρος γίνεται η οργάνωση της γεωργικής παραγωγής για το σύνολο της περιοχής. Έτσι σημαντικό είναι η ανάπτυξη ενός μοντέλου για την οργάνωση της γεωργικής παραγωγής, στο οποίο να εμπλέκονται περισσότεροι του ενός αποφασίζοντες και να χρησιμοποιούνται περισσότερα του ενός αντικρουόμενα κριτήρια με σκοπό την καλύτερη ερμηνεία της συμπεριφοράς των αγροτών, αλλά και την λήψη ορθολογικών αποφάσεων. Η μεθοδολογία που παρουσιάζεται χρησιμοποιεί περισσότερα του ενός αντικρουόμενα κριτήρια, όπως η μεγιστοποίηση του ακαθάριστου κέρδους, η ελαχιστοποίηση της χρήσης των λιπασμάτων και η ελαχιστοποίηση της χρησιμοποιούμενης εργασίας, με σκοπό την δημιουργία της συνάρτησης χρησιμότητας, για την εύρεση του άριστου σχεδίου παραγωγής για την περιοχή. Έτσι η μεθοδολογία χρησιμοποιεί ένα σταθμισμένο μοντέλο πολλαπλού προγραμματισμού με το οποίο εκτιμάται η συνάρτηση χρησιμότητας και υπολογίζεται το άριστο σχέδιο παραγωγής.
description: The aim of this master is the technical and economic analysis and organization of agricultural production in the area of the former Municipality of Kerkini Serres. For this purpose, the first part is an analysis of techno rates and presents the main results for each district, but also for the entire region. The second part is the organization of agricultural production for the entire region. So, is important the development of a model for the organization of agricultural production, which engage more than one decision maker and used several conflicting criteria in order to better interpret the behavior of farmers, but also make rational decisions. The methodology presented uses several conflicting criteria, such as maximizing gross profit, minimizing the use of fertilizers and minimize labor employed in order to create the utility function for finding the optimal production plan for the region. This methodology uses a weighted multiple programming model which estimated the utility function and calculate the optimal production plan.
Το επεκτατικό αποτέλεσμα των ενδίκων μέσων στην ποινική δικονομία:
Creators: name: Ευστρατιάδου, Ευαγγελία-Αντίκλεια Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: επεκτατικό αποτέλεσμα
ένδικα μέσα
ποινική δικονομία
expansionary effect
legal remedies
criminal procedure

description: Σκοπός της διπλωματικής εργασίας ήταν η μελέτη του επεκτατικού αποτελέσματος των ενδίκων μέσων στην ελληνική ποινική δικονομία. Εξετάσαμε τις προϋποθέσεις και τις περιπτώσεις επέκτασης των λόγων του ενδίκου μέσου, χρησιμοποιώντας παραδείγματα από τη νομολογία των δικαστηρίων μας. Επίσης, θίξαμε ζητήματα δικονομικής υφής ως προς τη θέση που αποκτά στην ποινική δίκη ο κατηγορούμενος που ωφελείται από το ένδικο μέσο άλλου κατηγορουμένου. Επιπλέον, ασχοληθήκαμε με την επέκταση του ενδίκου μέσου καθ’ εαυτού και επιχειρήσαμε να διακρίνουμε τη συγκεκριμένη έννοια από την επέκταση των λόγων του ενδίκου μέσου στο πλαίσιο του παλαιότερου και του ισχύοντος δικαίου, βάσει όλων των θεωριών που υποστηρίχθηκαν σχετικά, καταλήγοντας και σε ορισμένες προσωπικές διαπιστώσεις.
description: The aim of this diploma thesis was the study of the expansionary effect of legal remedies in the greek criminal procedure. We examined the terms and the cases of expansion of legal remedy’s grounds, by using examples from our courts precedents. In addition, we discussed procedural issues as regards the status of the accused benefiting from another defendant’s legal remedy. Moreover, we dealt with the expansion of legal remedy itself and we tried to distinguish this specific concept from the expansion of the grounds of legal remedy under older and current law, basing on all the relevant theories supported, resulting in some personal observations as well.
Phase field modelling of fracture and fatigue in Shape Memory Alloys
Creators: name: Simoes, Marlini
name: Martínez-Pañeda, Emilio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Numerical Analysis (math.NA)
subject: Applied Physics (physics.app-ph)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We present a new phase field framework for modelling fracture and fatigue in Shape Memory Alloys (SMAs). The constitutive model captures the superelastic behaviour of SMAs and damage is driven by the elastic and transformation strain energy densities. We consider both the assumption of a constant fracture energy and the case of a fracture energy dependent on the martensitic volume fraction. The framework is implemented in an implicit time integration scheme, with both monolithic and staggered solution strategies. The potential of this formulation is showcased by modelling a number of paradigmatic problems. First, a boundary layer model is used to examine crack tip fields and compute crack growth resistance curves (R-curves). We show that the model is able to capture the main fracture features associated with SMAs, including the toughening effect associated with stress-induced phase transformation. Insight is gained into the role of temperature, material strength, crack density function and fracture energy homogenisation. Secondly, several 2D and 3D boundary value problems are addressed, demonstrating the capabilities of the model in capturing complex cracking phenomena in SMAs, such as unstable crack growth, mixed-mode fracture or the interaction between several cracks. Finally, the model is extended to fatigue and used to capture crack nucleation and propagation in biomedical stents, a paradigmatic application of nitinol SMAs.
On the Symmetry of Low-Field Ordered Phase of PrFe4P12 : 31P NMR
Creators: name: Kikuchi, J.
name: Takigawa, M.
name: Sugawara, H.
name: Sato, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have performed 31P nuclear magnetic resonance (NMR) experiments on the filled skutterudite compound PrFe4P12 to investigate the exotic ordered phase at low temperatures and low magnetic fields. Analysis of the NMR line splitting in the ordered phase indicates that totally symmetric (Γ_1-type) staggered magnetic multipoles are induced by magnetic fields. This is incompatible with any type of quadrupole order at zero field. We conclude that the ordered phase has broken translational symmetry with the wave vector Q=(1,0,0) but the Th point symmetry at the Pr sites is not broken by the non-magnetic Γ_1-type order parameter.
description: 4 pages, 6 figures, some typos corrected, published version
Roughness and Finite Size Effect in the NYSE Stock-Price Fluctuations
Creators: name: Alfi, V.
name: Coccetti, F.
name: Petri, A.
name: Pietronero, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: We consider the roughness properties of NYSE (New York Stock Exchange) stock-price fluctuations. The statistical properties of the data are relatively homogeneous within the same day but the large jumps between different days prevent the extension of the analysis to large times. This leads to intrinsic finite size effects which alter the apparent Hurst (H) exponent. We show, by analytical methods, that finite size effects always lead to an enhancement of H. We then consider the effect of fat tails on the analysis of the roughness and show that the finite size effects are strongly enhanced by the fat tails. The non stationarity of the stock price dynamics also enhances the finite size effects which, in principle, can become important even in the asymptotic regime. We then compute the Hurst exponent for a set of stocks of the NYSE and argue that the interpretation of the value of H is highly ambiguous in view of the above results. Finally we propose an alternative determination of the roughness in terms of the fluctuations from moving averages with variable characteristic times. This permits to eliminate most of the previous problems and to characterize the roughness in useful way. In particular this approach corresponds to the automatic elimination of trends at any scale.
description: 13 pages, 11 fugures
Analysis of Deviance for Hypothesis Testing in Generalized Partially Linear Models
Creators: name: Härdle, Wolfgang Karl
name: Huang, Li-Shan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: In this study, we develop nonparametric analysis of deviance tools for generalized partially linear models based on local polynomial fitting. Assuming a canonical link, we propose expressions for both local and global analysis of deviance, which admit an additivity property that reduces to analysis of variance decompositions in the Gaussian case. Chi-square tests based on integrated likelihood functions are proposed to formally test whether the nonparametric term is significant. Simulation results are shown to illustrate the proposed chi-square tests and to compare them with an existing procedure based on penalized splines. The methodology is applied to German Bundesbank Federal Reserve data.
Σχεδίαση και Ανάπτυξη Συστήματος Διαχείρισης Διαδικτυακού Περιεχομένου Παραδοσιακής Μουσικής
Creators: name: Γιουβανάκης, Εμμανουήλ Μηνά
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Συστήματα Διαχείρισης Διαδικτυακού Περιεχομένου
Παραδοσιακή μουσική
Σχολιασμός τραγουδιών
Web Content Management Systems
Folk music
Songs tagging

description: Μια συλλογή 300 παραδοσιακών τραγουδιών που καταγράφηκαν στην περιοχή της Εράτυρας έχουν υποβληθεί σε επεξεργασία. Τα τραγούδια χωρίζονται σε 18 κατηγορίες ανάλογα με τον τύπο τους, όπως τραγούδια της αγάπης, συρτά, κλέφτικα, τσάμικα, κ.τ.λ. Σχεδιάστηκε και αναπτύχθηκε ένα Σύστημα Διαχείρισης Διαδικτυακού Περιεχομένου (Web CMS) με σκοπό να φιλοξενήσει την εν λόγω συλλογή. Το Web CMS βασίστηκε στο Drupal 7 καθώς πληροί το σύνολο των προδιαγραφών μας. Για παράδειγμα, εγκαθιστώντας διάφορα modules, υλοποιήθηκε η διαμοίραση πολυμέσων μεταξύ Flickr, YouTube, και της ιστοσελίδα μας. Το Webform module επέτρεψε την σύνδεση φορμών σε κάθε τραγούδι μέσω των οποίων λαμβάνουμε ανάδραση και σχολιασμούς από εγγεγραμμένους χρήστες. Συγκεντρωτικά στοιχεία για όλα τα τραγούδια μπορούν να αποκτηθούν μέσω του Views. Το Facebook Comments επιτρέπει στους χρήστες τον σχολιασμό τραγουδιών μέσω του προσωπικού τους λογαριασμού στο Facebook, κ.τ.λ. Τα σχόλια που ανατέθηκαν σε κάθε τραγούδι συγκεντρώθηκαν μέσω ενός PHP script και υπολογίστηκαν ιστογράμματα συχνοτήτων για κάθε σχόλιο. Πριν τον υπολογισμό των ιστο-γραμμάτων, κάθε σχόλιο αναλύθηκε ως προς την ετυμολογία του. Η διεύθυνση του ιστότοπου είναι η http://erasitechnis-aiia.web.auth.gr/music/.
description: A corpus of 300 folk songs, that were recorded in Eratyra, Greece, has been processed. These songs have been grouped in 18 categories with respect to their type, such as love songs, syrta, tsamika and klephtic songs, etc. A Web Content Management System (Web CMS) has been developed in order to host the aforementioned corpus for media sharing. It was based on Drupal 7, which meets the specifications set. For example, by exploring various modules, we have implemented media sharing between Flickr, YouTube, and our site. The module Webform has enabled attaching forms to every song to collect feedback and tags from registered users. A summary of useful data related to all songs can be obtained by Views. Facebook Comments enable users to comment a song via their Facebook account, etc. The tags assigned to every song were gathered using a PHP script and tag frequency histograms were calculated after word stemming applied to tags. The URL of our site is http://erasitechnis-aiia.web.auth.gr/music/.
title: Επισπαίκτης: Ο πολυδιάστατος ρόλος ενός χρήστη.
Το κράμα των περιπτώσεων μελέτης στην εμβύθιση του ατόμου
title: Audivisier: The multidimensional role of a user. The combination of case studies in the immersion of the individual
Creators: name: Τζανετοπουλος Γεωργιος
Publisher: name: Technical University of Crete
Year: 2024

description: Στην τροχιά που καταγράφει η εξέλιξη της μουσειολογίας διαφαίνεται η
μετατόπιση του ενδιαφέροντος στο υποκείμενο και στο βίωμά του όπως
αντίστοιχα τα βιντεοπαιχνίδια σπεύδουν σε μια πιο ολιστική αισθητηριακή
εμπειρία ενώ τα θεματικά πάρκα στοχεύουν στην εξάλειψη της ραφής
της πραγματικότητας δημιουργώντας ολοένα και πιο καθηλωτικές
εμπειρίες. Μια ανθρωποκεντρική προσέγγιση που εξετάζει το πώς τα
μηνύματα, οι συνθήκες και το συνολικό βίωμα θα γίνει ηχηρότερο, πιο
πολυαισθητηριακό και πιο συμμετοχικό ώστε να περιτυλίξει εκκωφαντικά
το άτομο στην στιγμή. Την απάντηση την δίνει ο όρος εμβύθιση
(immersion) καθώς με διαφορετικά μέσα χαρακτηρίζει τις κινήσεις αυτές
των δημιουργών να συνυφάνουν το άτομο στην συνθήκη ή στον «κόσμο»
που πλάθουν. Από τα βιντεοπαιχνίδια που γίνεται προσπάθεια ώστε να
θαμπώσει η ραφή που διαχωρίζει το αναλογικό από το ψηφιακό στα μάτια
του παίκτη, στα θεματικά πάρκα που αποτελούν εξ αρχής έναν δομημένο
φαντασιακό κόσμο που έχει την πρόθεση να καθηλώσει τους επισκέπτες
κάνοντάς τους να συνδεθούν αληθινά με τον κόσμο που αλληλεπιδρούν,
ξεχνώντας αυτόν από τον οποίο προήλθαν, ενώ τέλος τα μουσεία που
στον βωμό του να γίνουν πιο επισκέψιμα και ενδιαφέροντα μετάλλαξαν την
θέση του επισκέπτη από παθητικό παρατηρητή σε ενεργό συμμετέχοντα
στην λήψη της πληροφορίας που προσφέρει ο χώρος. Αποτέλεσμα των
παραπάνω είναι παραδείγματα καλλιτεχνικών εκθέσεων που αξιοποιούν
τα τεχνολογικά μέσα και τις θεωρητικές ή πρακτικές ποιότητες των
βιντεοπαιχνιδιών για να δημιουργήσουν περιβάλλοντα-κόσμους με
κλίμακα και λεπτομέρεια ενός θεματικού πάρκου. Επομένως, η συνένωση
αυτών των αξόνων προϋποθέτει και μια διαφορετική ταυτότητα χρήστη.
Ο επισπαίκτης είναι το πολιτιστικό τεκμήριο ατόμου που δρα σαν παίκτης,
όντας επισκέπτης τέτοιων καταστάσεων.
description: A research that traces the historical evolution of artistic environments, video games and theme parks, focusing on how these axes approach user immersion. A new functional profile of the individual is composed by molding their roles from the aforementioned axes. Two case studies created as such blends of art exhibitions are studied to reveal the immersive elements they use and how, despite their differences, they approach the experience from the user and creator's perspective, ultimately revealing the role synthesized for the user.
A “Third Way” in Christ: The Project of the Corporation of Mexican Students (CEM) in Cold War Mexico
Creators: name: Pensado, Jaime M.
Publisher: name: University of Notre Dame
Year: 2024

description: The 1950s saw the rise of a new generation of leftist, conservative, and Catholic students in Latin America that began calling for a unique form of hemispheric solidarity. Their efforts reflected concerns about momentous contemporary events that had a profound impact at their universities, like the anticolonial war in Algeria, the rise of military dictatorships in Guatemala, and the “iron fist” following the Hungarian insurrection. But these students also harkened back to the “arielista” language that characterized the first two decades of the twentieth century. Asserting their ideological positions during the incipient cold war, they participated throughout the 1950s in multiple international conferences to further their cause.
Add-on pricing: theory and evidence from the cruise industry
Creators: name: Savioli, Marco
name: Zirulia, Lorenzo
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: SECS-P/01 Economia politica

description: In many industries, firms give consumers the opportunity to add (at a price) optional goods and services to a baseline product. The aim of our paper is to provide a theoretical model of add-on pricing in competitive environments with two new distinctive features. First, we discuss the choice of offering the add-on, assuming that this entails a fixed cost. Second, we allow firms to have a varying degree of market power over the add-on, associated with the ability to capture the value that consumers obtain from such an additional good/service. Our model shows that the conventional wisdom, according to which offering the add-on should unambiguously lower the price of the baseline product, is not always supported. In asymmetric equilibria, in which only one firm offers the add-on, baseline prices are higher if the firm’s market power over the add-on is limited. The predictions of the model are confirmed by a hedonic price model on a dataset of cruises offered worldwide.
Bounds on the scale of noncommutativity from mono photon production in ATLAS Runs -1 and -2 experiments at LHC energies
Creators: name: Bekli, M. R.
name: Chadou., I.
name: Mebarki, N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Leading order study of direct photon production from proton-proton collisions, in the framework of Minimal (Seiberg-Witten) Non-Commutative Standard Model (NCSM), taking into account the Earth-rotation effects. We found that relative non-commutative contributions increase significantly at very high photon transverse momentum. Therefore, using Run-1 (\sqrt{s}= 8 TeV) and Run-2 (\sqrt{s}= 13 TeV) ATLAS experimental data of inclusive isolated prompt photon cross-section, TeV-Scale bounds of the non-commutativity (NC) parameter are obtained. For space-space non-commutativity, we obtain: Λb=1.145 \pm 0.015 TeV , and for space-time non-commutativity, we obtain : Λe=1.125 \pm 0.035 TeV.
Walt Whitman Onwards and Outwards
Creators: name: Kalin, Jason
Publisher: name: University of Rochester
Year: 2024
Subjects: classificationCode: 430321
subject: North American history
classificationCode: 43
subject: History, heritage and archaeology
classificationCode: 470307
subject: English language

description: Students in two of Professor Robert Westbrook's courses in American intellectual history, "The American Mind, 1600-1865" (History 267) and "The American Mind, 1865-1990" (History 268), use manuscript materials as part of a research assignment. This assignment, called "Other People's Mail," requires that students transcribe a document and write an introduction to it, placing the document in its context and suggesting the ways in which it bears on significant themes in the course. The student essay along with transcriptions of the documents and images of the originals letters, have been digitized and included. Individual scanned page images are supplied, along with them compiled into a PDF together for convenience.

Please Note: All rights regarding the papers rest with the authors. The images of the manuscripts may not be reproduced without obtaining prior written permission from the Department of Rare Books and Special Collections.
This document was adapted from a webpage hosted on the Rare Books, Special Collections, and Manuscripts website, before being converted into a static document and uploaded to URRR on 2024-10-03.
On the momentum-dependence of $K^{-}$-nuclear potentials
Creators: name: Dang, L.
name: Li, L.
name: Zhong, X. H.
name: Ning, P. Z.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The momentum dependent $K^{-}$-nucleus optical potentials are obtained based on the relativistic mean-field theory. By considering the quarks coordinates of $K^-$ meson, we introduced a momentum-dependent "form factor" to modify the coupling vertexes. The parameters in the form factors are determined by fitting the experimental $K^{-}$-nucleus scattering data. It is found that the real part of the optical potentials decrease with increasing $K^-$ momenta, however the imaginary potentials increase at first with increasing momenta up to $P_k=450\sim 550$ MeV and then decrease. By comparing the calculated $K^-$ mean free paths with those from $K^-n$/$K^-p$ scattering data, we suggested that the real potential depth is $V_0\sim 80$ MeV, and the imaginary potential parameter is $W_0\sim 65$ MeV.
description: 9 pages, 4 figures
Credit-Default-Swaps and the 2008 Financial Crisis: An Inquiry into the Underlying Legal Origins and the European Union’s Regulatory Reforms
Creators: name: Zhou, Jie <1985>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: IUS/02 Diritto privato comparato

description: After the 2008 financial crisis, the financial innovation product Credit-Default-Swap (CDS) was widely blamed as the main cause of this crisis. CDS is one type of over-the-counter (OTC) traded derivatives. Before the crisis, the trading of CDS was very popular among the financial institutions. But meanwhile, excessive speculative CDSs transactions in a legal environment of scant regulation accumulated huge risks in the financial system. This dissertation is divided into three parts. In Part I, we discussed the primers of the CDSs and its market development, then we analyzed in detail the roles CDSs had played in this crisis based on economic studies. It is advanced that CDSs not just promoted the eruption of the crisis in 2007 but also exacerbated it in 2008. In part II, we asked ourselves what are the legal origins of this crisis in relation with CDSs, as we believe that financial instruments could only function, positive or negative, under certain legal institutional environment. After an in-depth inquiry, we observed that at least three traditional legal doctrines were eroded or circumvented by OTC derivatives. It is argued that the malfunction of these doctrines, on the one hand, facilitated the proliferation of speculative CDSs transactions; on the other hand, eroded the original risk-control legal mechanism. Therefore, the 2008 crisis could escalate rapidly into a global financial tsunami, which was out of control of the regulators. In Part III, we focused on the European Union’s regulatory reform towards the OTC derivatives market. In specific, EU introduced mandatory central counterparty clearing obligation for qualified OTC derivatives, and requires that all OTC derivatives shall be reported to a trade repository. It is observable that EU’s approach in re-regulating the derivatives market is different with the traditional administrative regulation, but aiming at constructing a new market infrastructure for OTC derivatives.
Effect of finite detection efficiency on the observation of the dipole-dipole interaction of a few Rydberg atoms
Creators: name: Ryabtsev, I. I.
name: Tretyakov, D. B.
name: Beterov, I. I.
name: Entin, V. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We have developed a simple analytical model describing multi-atom signals that are measured in experiments on dipole-dipole interaction at resonant collisions of a few Rydberg atoms. It has been shown that finite efficiency of the selective field-ionization detector leads to the mixing up of the spectra of resonant collisions registered for various numbers of Rydberg atoms. The formulas which help to estimate an appropriate mean Rydberg atom number for a given detection efficiency are presented. We have found that a measurement of the relation between the amplitudes of collisional resonances observed in the one- and two-atom signals provides a straightforward determination of the absolute detection efficiency and mean Rydberg atom number. We also performed a testing experiment on resonant collisions in a small excitation volume of a sodium atomic beam. The resonances observed for 1 to 4 detected Rydberg atoms have been analyzed and compared with theory.
description: 10 pages, 4 figures; equations 8,9,18,19,23,26-31, figures 3 and 4(d), and measurements revised in version 3
The Comradeship of Whitman
Creators: name: Smithken-Lindsay, Jennie
Publisher: name: University of Rochester
Year: 2024
Subjects: classificationCode: 43
subject: History, heritage and archaeology
classificationCode: 430321
subject: North American history
classificationCode: 470307
subject: English language

description: Students in two of Professor Robert Westbrook's courses in American intellectual history, "The American Mind, 1600-1865" (History 267) and "The American Mind, 1865-1990" (History 268), use manuscript materials as part of a research assignment. This assignment, called "Other People's Mail," requires that students transcribe a document and write an introduction to it, placing the document in its context and suggesting the ways in which it bears on significant themes in the course. The student essay along with transcriptions of the documents and images of the originals letters, have been digitized and included. Individual scanned page images are supplied, along with them compiled into a PDF together for convenience.

Please Note: All rights regarding the papers rest with the authors. The images of the manuscripts may not be reproduced without obtaining prior written permission from the Department of Rare Books and Special Collections.
This document was adapted from a webpage hosted on the Rare Books, Special Collections, and Manuscripts website, before being converted into a static document and uploaded to URRR on 2024-10-03.
Relative Density of the Random $r$-Factor Proximity Catch Digraph for Testing Spatial Patterns of Segregation and Association
Creators: name: Ceyhan, E.
name: Priebe, C. E.
name: Wierman, J. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Methodology (stat.ME)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Statistical pattern classification methods based on data-random graphs were introduced recently. In this approach, a random directed graph is constructed from the data using the relative positions of the data points from various classes. Different random graphs result from different definitions of the proximity region associated with each data point and different graph statistics can be employed for data reduction. The approach used in this article is based on a parameterized family of proximity maps determining an associated family of data-random digraphs. The relative arc density of the digraph is used as the summary statistic, providing an alternative to the domination number employed previously. An important advantage of the relative arc density is that, properly re-scaled, it is a $U$-statistic, facilitating analytic study of its asymptotic distribution using standard $U$-statistic central limit theory. The approach is illustrated with an application to the testing of spatial patterns of segregation and association. Knowledge of the asymptotic distribution allows evaluation of the Pitman and Hodges-Lehmann asymptotic efficacies, and selection of the proximity map parameter to optimize efficiency. Furthermore the approach presented here also has the advantage of validity for data in any dimension.
description: 29 pages, 21 figures
Shaking rattles in all directions : a case study/story of a female "Indian" student attending a EuroCanadian University (1991- ), located on the traditional territory of Musqueam
Creators: name: Calliou, Sharilyn
Publisher: name: University of British Columbia
Year: 2009

description: Through use of a revelatory case study, as discussed by Yin in 1984, this researcher introspectively explores the university experience of a female student enrolled in graduate studies. Questions related to her post-secondary experiences as a novice researcher and as a student were asked in four broad areas: emotional, physical, cognitive, and spiritual. The interview questions, largely unstructured and open-ended, intended to probe the possible need for self- and institutional awareness about certain, identifiable, mitigating factors which affect the nature of the post-secondary student experience. The answers reveal a degree of disjuncture between the subject and the experience of being "schooled" in this post-secondary setting; however, the limited sample size of one - and the idiosyncratic nature of the informant's experience - cannot allow conclusive generalizations or recommendations to be firmly supported. The primary focus question for this research was: Do we need to (re)consider the research process? The pronoun - we - refers to anyone interested in the nature of quantitative and/or qualitative or other research methods, and may include those traditionally considered 'inside' the institution and those located 'outside' due to reasons of heritage, cultural capital, economic wealth, legislated disbarment or for other reasons of access disablement. Similarly, this question may be of interest to those who are themselves considered peripheral or outside 'mainstream' society. This question may also attract particular attention as increasing numbers of students from different ethnocultural, gender, class, religious and other variables of 'disadvantaged' backgrounds choose to attend post-secondary institutions, traditionally the preserve of children of European descent. The subjective probing indicates that this student experienced disjuncture between her worldview, as related to the nature of cognition, research, canon and secularization. - and the Weltanshung presented through the curricula of this postsecondary institution. Highlights of the findings include her perceptions that: (a) the nature of the research process she is introduced to is one where rationality is privileged, denuded of any emotional (or other) bases; (b) research processes are more invasive than friendly; (c) the canon does not include those she might cite authorities; and (d) the post-secondary experience is secularized. In conclusion, this research suggests that although a particular homogenization process, which may be characterised as Western scientific, may appear to be in place at post-secondary levels, particular students are able to resist overt and hidden curricular intentions. However, further study is suggested to discover the nature of such resistance and the potential value for (de)(post)colonialising curricula.
Federici cardinalis Borromaei archiepisc. Mediolani Musaeum: αναζητώντας τον κατάλογο – οδηγό της πρώτης έκθεσης της Αμβροσιανής Πινακοθήκης
Creators: name: Τζωρτζακάκης, Ιωάννης Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Μουσειολογία
Αμβροσιανή Πινακοθήκη
Φεντερίκο Μπορρομέο
Museology
Ambrosian Art Gallery
Federico Borromeo

description: Ο καρδινάλιος Federico Borromeo αρχιεπίσκοπος Μιλάνου, στα 1625 έγραψε τo βιβλίο Federici cardinalis Borromaei archiepisc. Mediolani Musaeum, στο οποίο μας περιγράφει έργα τέχνης που ο ίδιος επέλεξε και συγκέντρωσε για την πρώτη έκθεση της Αμβροσιανής Πινακοθήκης. Στο πρώτο μέρος της εργασίας περιγράφονται οι μηχανισμοί συγκρότησης της συλλογής και οι περίοδοι συλλεκτικής δραστηριότητας του καρδινάλιου, από τα μέσα του 16ου μέχρι και το πρώτο τέταρτο του 17ου αιώνα. Στο δεύτερο μέρος σκιαγραφούνται το πρώτο κοινό της πρώτης έκθεσης της Αμβροσιανής Πινακοθήκης, όπως και το λανθάνον νοηματικό μουσειολογικό σκεπτικό της έκθεσης, και των ενοτήτων της, της συλλογής του Μπορρομέο. Τέλος, στο τρίτο μέρος επιχειρείται η ένταξη του βιβλίου του Μπορρομέο στο γραμματολογικό είδος των καταλόγων – οδηγών των εκθέσεων, ως προϊόν της ένωσης των εκφράσεων και των οδηγών πόλεων.
description: Cardinal Federico Borromeo archbishop of Milan, in 1625s, published a book entitled Federici cardinalis Borromaei archiepisc. Mediolani Musaeum. In this book he described works of art which he personally had chosen and collected for the first exhibition of the Ambrosian Art Gallery (Pinacoteca Ambrosiana). In the first part of this dissertation, I define the collecting mechanisms and the periods of collecting activity of the cardinal, from the mid-16th until the first quarter of the 17th century. Further, in the second part, I outline the notion of the first public of the Gallery, along the notion of the latent central conceptual museological idea and design of the exhibition, and its sections, of the same collection. In conclusion, during the third part, I try to see the grammatological accession of the book in question as an exhibition guide – as the product of the joining of ekphrases and city guides.
description: Σε συνεργασία με το Παιδαγωγικό Τμήμα Δημοτικής Εκπαίδευσης (Πανεπιστήμιο Δυτικής Μακεδονίας)
Non-compact groups, Coherent States, Relativistic Wave equations and the Harmonic Oscillator
Creators: name: Cirilo-Lombardo, Diego
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Relativistic geometrical action for a quantum particle in the superspace is analyzed from theoretical group point of view. To this end an alternative technique of quantization outlined by the authors in a previous work and that is based in the correct interpretation of the square root Hamiltonian, is used. The obtained spectrum of physical states and the Fock construction consist of Squeezed States which correspond to the representations with the lowest weights s=1/4 and s=3/4 with four possible (non-trivial) fractional representations for the group decomposition of the spin structure. From the theory of semi-groups the analytical representation of the radical operator in the superspace is constructed, the conserved currents are computed and a new relativistic wave equation is proposed and explicitly solved for the time dependent case. The relation with the Relativistic Schrödinger equation and the Time-dependent Harmonic Oscillator is analyzed and discussed.
description: To be published in Foundations of Physics