cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Non-compact quantum graphs with summable matrix potentials
Creators: name: Granovskyi, Yaroslav
name: Malamud, Mark
name: Neidhardt, Hagen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: Let $\mathcal{G}$ be a metric noncompact connected graph with finitely many edges. The main object of the paper is the Hamiltonian ${\bf H}_α$ associated in $L^2(\mathcal{G};\mathbb{C}^m)$ with a matrix Sturm-Liouville expression and boundary delta-type conditions at each vertex. Assuming that the potential matrix is summable and applying the technique of boundary triplets and the corresponding Weyl functions, we show that the singular continuous spectrum of the Hamiltonian ${\bf H}_α$ as well as any other self-adjoint realization of the Sturm-Liouville expression is empty. We also indicate conditions on the graph ensuring pure absolute continuity of the positive part of ${\bf H}_α$. Under an additional condition on the potential matrix, a Bargmann-type estimate for the number of negative eigenvalues of ${\bf H}_α$ is obtained. Additionally, for a star graph $\mathcal{G}$ a formula is found for the scattering matrix of the pair $\{{\bf H}_α, {\bf H}_D\}$, where ${\bf H}_D$ is the Dirichlet operator on $\mathcal{G}$.
ЯЗЫКОВАЯ ЭКОНОМИЯ КОНЦЕПЦИЯ И ПРИМЕРЫ
Creators: name: Тухтабоева, Муслима
Publisher: name: Zenodo
Year: 2024

description: Языковая экономия — это ключевая концепция в изучении человеческой коммуникации, подчеркивающая склонность говорящих и пишущих передавать информацию с использованием минимальных языковых ресурсов. Это явление проявляется в различных формах, включая использование аббревиатур, упрощений и контекстуально зависимых выражений. Сокращая сложность языка, люди могут повысить эффективность и скорость общения, что особенно важно в условиях быстрого темпа, таких как цифровая коммуникация и профессиональная среда. Понимание языковой экономии не только помогает в изучении языка, но и обогащает возможность эффективно взаимодействовать с различными аудиториями. Эта тема исследует принципы языковой экономии, её проявления в разных языках и её последствия для эффективной коммуникации.
SLCRF: Subspace Learning with Conditional Random Field for Hyperspectral Image Classification
Creators: name: Cao, Yun
name: Mei, Jie
name: Wang, Yuebin
name: Zhang, Liqiang
name: Peng, Junhuan
name: Zhang, Bing
name: Li, Lihua
name: Zheng, Yibo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Subspace learning (SL) plays an important role in hyperspectral image (HSI) classification, since it can provide an effective solution to reduce the redundant information in the image pixels of HSIs. Previous works about SL aim to improve the accuracy of HSI recognition. Using a large number of labeled samples, related methods can train the parameters of the proposed solutions to obtain better representations of HSI pixels. However, the data instances may not be sufficient enough to learn a precise model for HSI classification in real applications. Moreover, it is well-known that it takes much time, labor and human expertise to label HSI images. To avoid the aforementioned problems, a novel SL method that includes the probability assumption called subspace learning with conditional random field (SLCRF) is developed. In SLCRF, first, the 3D convolutional autoencoder (3DCAE) is introduced to remove the redundant information in HSI pixels. In addition, the relationships are also constructed using the spectral-spatial information among the adjacent pixels. Then, the conditional random field (CRF) framework can be constructed and further embedded into the HSI SL procedure with the semi-supervised approach. Through the linearized alternating direction method termed LADMAP, the objective function of SLCRF is optimized using a defined iterative algorithm. The proposed method is comprehensively evaluated using the challenging public HSI datasets. We can achieve stateof-the-art performance using these HSI sets.
description: 13 pages, 6 figures
Approximations of Maximal and Principal Ideal
Creators: name: Abdunabi, Faraj. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics

description: In this paper, we will be delving deeper into the connection between the rough theory and the ring theory precisely in the principle and maximal ideal. The rough set theory has shown by Pawlak as good formal tool for modeling and processing incomplete information in information system. The rough theory is based on two concepts the upper approximation of a given set is the union of all the equivalence classes, which are subsets of the set, and the lower approximation is the union of all the equivalence classes, which are intersection with set non-empty. Many researchers develop this theory and use it in many areas. Here, we will apply this theorem in the one of the most important branches of mathematics that is ring theory. We will try to find the rough principal and maximal ideal as an extension of the notion of a principal maximal ideal respectively in ring theory. In addition, we study the properties of the upper and lower approximation of a principal maximal ideal. However, some researchers use the rough theory in the group and ring theory. Our work, is Shaw there are rough maximal and principle ideal as an extension of the maximal and principle ideal respectively. Our result will introduce the rough maximal ideal as an extended notion of a classic maximal ideal and we study some properties of the lower and the upper approximations a maximal ideal.
Το δικαίωμα στο περιβάλλον. Η προστασία του περιβάλλοντος ως ζήτημα προστασίας των δικαιωμάτων του ανθρώπου:
Creators: name: Μακροβασίλης, Ευάγγελος Ευθυμίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Περιβάλλον
Δικαίωμα
Προστασία
Environment
Right
Protection

description: Σκοπός της διατριβής ήταν να μελετήσει το δικαίωμα του ανθρώπου στο περιβάλλον, πως αυτό προστατεύεται και αν μπορούμε να το θεωρήσουμε ως δικαίωμα του ανθρώπου.Ξεκινάμε δίνοντας ορισμούς του δικαιώματος και του περιβάλλοντος καθώς και την ιστορική εξέλιξη των τριών γενεών ανθρωπίνων δικαιωμάτων. Έπειτα τονίζουμε το διασυνοριακό χαρακτήρα του δικαιώματος στο περιβάλλον και μελετάμε τη νομική βάση προστασίας του σε διεθνές, ευρωπαικό και εσωτερικό επίπεδο.Επιχειρούμε μια σύνδεση με τα υπόλοιπα ανθρώπινα δικαιώματα, ιδίως τη ζωή και την υγεία και προσδιορίζουμε τα δικαιώματα του ανθρώπου που απειλούνται όταν το δικαίωμα στο περιβάλλον παραβιάζεται. Τέλος, αναλύουμε δύο παραδείγματα παραβίασης του δικαιώματος με ευνοικές ως προς τα θύματα αποφάσεις.
description: The goal of this thesis was to study the human right to environment, how it is protected and if we can consider it as a human right. We start giving definitions of right and environment as well as the historical evolution of the three generations of human rights. Then we tone the international character of the right to environment and study the legal basis of its protection in international, european and inland level. We try to link it with the rest of the human rights, especially life and health and allocate the human rights threatened when the right to environment is violated. In the end we analyze two paradigms of the rights violation with favorable decisions for the victims.
Slowly Rotating Homogeneous Stars and the Heun Equation
Creators: name: Petroff, David
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The scheme developed by Hartle for describing slowly rotating bodies in 1967 was applied to the simple model of constant density by Chandrasekhar and Miller in 1974. The pivotal equation one has to solve turns out to be one of Heun's equations. After a brief discussion of this equation and the chances of finding a closed form solution, a quickly converging series solution of it is presented. A comparison with numerical solutions of the full Einstein equations allows one to truncate the series at an order appropriate to the slow rotation approximation. The truncated solution is then used to provide explicit expressions for the metric.
description: 16 pages, uses document class iopart, v2: minor corrections
Nuclear Astrophysics of Worlds in the String Landscape
Creators: name: Hogan, Craig J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by landscape models in string theory, cosmic nuclear evolution is analyzed allowing the Standard Model Higgs expectation value w to take values different from that in our world (w=1), while holding the Yukawa couplings fixed. Thresholds are estimated, and astrophysical consequences are described, for several sensitive dependences of nuclear behavior on w. The dependence of the neutron-proton mass difference on w is estimated based on recent calculations of strong isospin symmetry breaking, and is used to derive the threshold of neutron-stable worlds, w ~ 0.6+/- 0.2. The effect of a stable neutron on nuclear evolution in the Big Bang and stars is shown to lead to radical differences from our world, such as a predominance of heavy r-process and s-process nuclei and a lack of normal galaxies, stars and planets. Rough estimates are reviewed of w thresholds for deuteron stability and the pp and pep reactions dominant in many stars. A simple model of nuclear resonances is used to estimate the w dependence of overall carbon and oxygen production during normal stellar nucleosynthesis; carbon production is estimated to change by a fraction ~15(1-w). Radical changes in astrophysical behavior seem to require changes in w of more than a few percent, even for the most sensitive phenomena.
description: 11 pages, Latex, to appear in Phys. Rev. D
Ετοιμότητα των εκπαιδευτικών να αντιμετωπίσουν τα ζητήματα της διγλωσσίας και της πολυπολιτισμικότητας: Η περίπτωση των Ελλήνων και Ελληνίδων εκπαιδευτικών που αποσπώνται στο εξωτερικό:
Creators: name: Αβραμίδου, Βαρβάρα Κυριάκου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Διαπολιτισμική Ετοιμότητα
Διγλωσσία
Πολυπολιτισμικότητα
Intercultural Competence
Bilingualism
Multiculturalism

description: Το λειτούργημα του/της εκπαιδευτικού βρίσκεται σήμερα παγκοσμίως αντιμέτωπο με νέες προκλήσεις και συνεχείς μεταρρυθμίσεις. Η ολοένα μεγαλύτερη μετακίνηση ανθρώπων ανά τον κόσμο έχει οδηγήσει στη μετεξέλιξη των σύγχρονων κοινωνιών, φαινομένου που αντανακλάται στο εκπαιδευτικό σύστημα πολλών χωρών, όπου η παρουσία μεγάλου ποσοστού μη φυσικών ομιλητών/τριών της γλώσσας του σχολείου δημιουργεί διάφορα ζητήματα. Τις τελευταίες δεκαετίες, ο αριθμός των μαθητών/τριών που αντιπροσωπεύουν διαφορετικές εθνότητες και μιλούν τα ελληνικά ως δεύτερη ή ξένη γλώσσα έχει αυξηθεί σημαντικά στις τάξεις των ελληνικών δημόσιων σχολείων, με αποτέλεσμα την ανάδυση έντονης προβληματικής. Είναι οι εκπαιδευτικοί προετοιμασμένοι/ες να αντιμετωπίσουν τα ζητήματα της διγλωσσίας και της πολυπολιτισμικότητας που προκύπτουν στο σύγχρονο ελληνικό σχολείο; Η παρούσα εργασία συζητά το θέμα της ετοιμότητας των Ελλήνων και Ελληνίδων εκπαιδευτικών που αποσπάστηκαν, κατά το παρελθόν, στο εξωτερικό να διαχειριστούν επιτυχώς τους μαθητές/τριες με γλωσσικές και πολιτισμικές ιδιαιτερότητες.Συγκεκριμένα, ερευνάται κατά πόσο οι εν λόγω εκπαιδευτικοί είναι καταρτισμένοι/ες σε θέματα Διαπολιτισμικής Εκπαίδευσης, ποιες μεθόδους και πρακτικές χρησιμοποιούν τόσο κατά τη διδασκαλία των πολιτισμικά διαφορετικών μαθητών/τριών όσο και κατά τη διαχείριση της πολυπολιτισμικής τάξης, εν γένει, και εάν πιστεύουν ότι η απόσπασή τους στο εξωτερικό τους βοήθησε στην ανάπτυξη της διαπολιτισμικής επάρκειας και ετοιμότητας.
description: The teaching profession is now faced with new global challenges and ongoing reforms. The increasing movement of people around the world has led to the transformation of modern societies. This phenomenon is reflected in the educational system of many countries where the presence of a great percentage of non-native speakers of the school language raises several issues. In recent decades, the number of students representing different nationalities and speaking Greek as a second or foreign language has increased dramatically in the classes of the Greek public schools, resulting in the emergence of intense questioning. Are teachers prepared to deal with the issues of bilingualism and multiculturalism, arising in the contemporary Greek school? This paper discusses the issue of preparedness of Greek teachers detached abroad, in the past, to successfully manage their students with language and cultural differences. It is investigated whether these teachers are trained in issues of intercultural education, what methods and practices they use both in teaching culturally diverse students and in managing their multicultural class, in general, and if they believe that their posting abroad helped them to develop intercultural competence and readiness.
Rapidly rotating boson molecules with long or short range repulsion: an exact diagonalization study
Creators: name: Baksmaty, Leslie O.
name: Yannouleas, Constantine
name: Landman, Uzi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: Nuclear Theory (nucl-th)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The Hamiltonian for a small number, N <= 11, of bosons in a rapidly rotating harmonic trap, interacting via a short range (contact potential) or a long range (Coulomb) interaction, is studied via an exact diagonalization in the lowest Landau level. Our analysis shows that, for both low and high fractional fillings, the bosons localize and form rotating boson molecules (RBMs) consisting of concentric polygonal rings. Focusing on systems with the number of trapped atoms sufficiently large to form multi-ring bosonic molecules, we find that, as a function of the rotational frequency and regardless of the type of repulsive interaction, the ground-state angular momenta grow in specific steps that coincide with the number of localized bosons on each concentric ring. Comparison of the conditional probability distributions (CPDs) for both interactions suggests that the degree of crystalline correlations appears to depend more on the fractional filling nu than on the range of the interaction. The RBMs behave as nonrigid rotors, i.e., the concentric rings rotate independently of each other. At filling fractions nu < 1/2, we observe well developed crystallinity in the CPDs (two-point correlation functions). For larger filling fractions nu > 1/2, observation of similar molecular patterns requires consideration of even higher-order correlation functions.
description: To appear in Physical Review A. REVTEX. 16 pages with 15 figures. For related papers, see http://www.prism.gatech.edu/~ph274cy/
Agrion viridiilum Charpentier 1825
Creators: name: Hagen, H.
Publisher: name: Zenodo
Year: 1863
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Calopterygidae
Agrion
Agrion viridiilum

description: 44. Agrion viridıılum Clıarp.
Klein-Asien, Süd- und Mittel- Europa.
description: Published as part of Hagen, H., 1863, Die Odonaten- und Nenropteren-Fauna Syriens und Klein-Asiens, pp. 193-199 in Wiener Entomologische Monatschrift 7 on page 197, DOI: 10.5281/zenodo.3528093
Agrion pumilio Charpentier 1825
Creators: name: Hagen, H.
Publisher: name: Zenodo
Year: 1863
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Calopterygidae
Agrion
Agrion pumilio

description: 45. A. pumilio Charp.
Klein-Asien, Süd- und Mittel-Europa, Algier, Madeira, Egypten (?).
description: Published as part of Hagen, H., 1863, Die Odonaten- und Nenropteren-Fauna Syriens und Klein-Asiens, pp. 193-199 in Wiener Entomologische Monatschrift 7 on page 197, DOI: 10.5281/zenodo.3528093
Rural out-migration and rural development in Iran : implications for the roles of infrastructure in case of Hamadan province
Creators: name: Sarrafi, Mozaffar
Publisher: name: University of British Columbia
Year: 2009

description: Large scale rural out-migration has gained momentum over the past four decades in Iran, contributing to urbanization at unprecedented rates. In the wake of the Islamic Revolution, it was recognized that in order to reduce reliance on oil revenues and foster self-sufficiency and social equity, it was essential to ensure the viability of agriculture and rural settlements. As a part of this new strategy, a rural infrastructure provision policy (RIPP) was undertaken in order to bring about rural prosperity and to curb out-migration. Yet, the plight of villagers and out-migration persist. This dissertation focuses on the village end of the problem, and on permanent outmigration in post-revolutionary Iran. It investigates the causes of rural out-migration and their impacts on the remaining rural households. Further, it examines the potential of RIPP to reduce out-migration and enhance village viability. In terms of methodology, a cross-analysis was conducted at the levels of individual, household, and community. Both qualitative and quantitative research methods were employed. Data were collected from primary and secondary sources. While the latter served analysis needs at the macro-level, the former, which included case studies in five villages in Hamadan Province, served those at the micro- and meso-levels. The macro-level analysis reveals population pressure on agricultural resources and rural-urban disparities as the overriding causes of rural out-migration in Iran. Correspondingly, the micro- and meso-level analyses: (a) highlight the critical importance of the middle strata (MS) for the future viability of rural Iran; (b) identify household insecurity, resulting from precarious and uncertain rural livelihoods as the root cause of out-migration for MS; and (c) suggest that the ongoing migration of youth from MS must be contained to ensure the next generation of farmers. Finally, five roles are identified for RIPP to target the overriding causes as well as those pertaining specifically to MS. While there is need for policy changes in the macro-economic sphere in Iran, RIPP has the potential to reduce rural out-migration. More fundamentally, it suggests that it is not merely the presence of physical infrastructure and its direct role, but rather an effectively functioning social infrastructure and its intermediary roles that are vital to curbing excessive out-migration and ensuring village viability.
Effi Briest und Madame Bovary. Ein Vergleich:
Creators: name: Χωραφά, Σοφία Χαραλάμπους
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: μοιχεία
Εφη Μπριστ
Μαντάμ Μποβαρύ
Adultery
Effi Briest
Madame Bovary

description: Τα δύο λογοτεχνικά έργα συγκρίνονται ως μυθιστορήματα μοιχείας. Σκοπός της εργασίας αυτής είναι να αναδειχθούν οι λόγοι που οδήγησαν τις δύο πρωταγωνίστριες στη μοιχεία. Το ερώτημα που τίθεται είναι εάν πρόκειται για συνειδητοποιημένες μοιχαλίδες ή για θύματα μιας ρατσιστικής ανδροκρατούμενης κοινωνίας που επιλέγουν τη μοιχεία ως μέσο αντίδρασης.
description: The two literary works are compared as novels of adultery. The aim of the present thesis is to reveal the reasons that led the two heroines to adultery. The question raised is if they both are conscious adulteresses or victims of a racist male-dominated society and choose adultery as a means of rebellion.
Agrion graellsii Rambur 1842
Creators: name: Hagen, H.
Publisher: name: Zenodo
Year: 1863
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Calopterygidae
Agrion
Agrion graellsii

description: 46. A. Graellsii Ramb.
Klein-Asien, Spanien, Portugal, Algier (?).
description: Published as part of Hagen, H., 1863, Die Odonaten- und Nenropteren-Fauna Syriens und Klein-Asiens, pp. 193-199 in Wiener Entomologische Monatschrift 7 on page 197, DOI: 10.5281/zenodo.3528093
Longest Common Pattern between two Permutations
Creators: name: Rossin, Dominique
name: Bouvel, Mathilde
Publisher: name: arXiv
Year: 2006
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05A05; 05C12; 05C85; 05C05; 90C39

description: In this paper, we give a polynomial (O(n^8)) algorithm for finding a longest common pattern between two permutations of size n given that one is separable. We also give an algorithm for general permutations whose complexity depends on the length of the longest simple permutation involved in one of our permutations.
Φύση και Γνώμη κατά τον Άγιο Μάξιμο τον Ομολογητή:
Creators: name: Ανδρέου, Σωκράτης Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Φύση
Γνώμη
Μονοθελήτες
Nature
Opinion
Monothelites

description: Σκοπός της διατριβής ήταν η μελέτη της διάκρισης μεταξύ φυσικού και γνωμικού θελήματος στον Χριστό (ως Θεάνθρωπο), και στον άνθρωπο γενικότερα. Η παραπάνω διάκριση αποτελεί νευραλγική πτυχή της ευρύτερης θεολογικής διδασκαλίας του Αγίου Μαξίμου. Αρχικά προσπαθήσαμε να περιγράψουμε κατά το δυνατό εφικτό, την πολιτική και εκκλησιαστική κατάσταση του εβδόμου αιώνα, καθώς και τις διάφορες συγκυρίες, ιστορικές-θεολογικές μέσα από τις οποίες γεννήθηκε η νέα διδασκαλία του Μονοθελητισμού. Παράλληλα όμως παραθέσαμε και ορισμένες βασικές πτυχές από την αιρετική διδασκαλία του Μονοθελητισμού-Μονοενεργητισμού. Ακολούθως μελετήσαμε τη θεολογική και δογματική απάντηση του Αγίου Μαξίμου του Ομολογητού ενάντια στη νέα πρόκληση της εποχής. Έπειτα παρουσιάσαμε ένα συνοπτικό, σχεδιάγραμμα ανθρωπολογίας όπως παρουσιάζεται μέσα από τα γραπτά κείμενα του αγίου. Μελετήσαμε τη σύσταση της ανθρώπινης φύσης από τη δημιουργία της, ως κατ’ εικόνα και καθ’ ομοίωση Θεού δημιούργημα. Ακολούθως κρίναμε απαραίτητο να μελετήσουμε και τη μεταπτωτική πορεία που ακολούθησε ο άνθρωπος και τις συνέπειες που επήλθαν στη φθαρτή και τρεπτή του φύση. Η ενέργεια και το θέλημα είναι τα φυσικά χαρακτηριστικά στοιχεία των δύο φύσεων του Χριστού τα οποία μας απασχόλησαν στο τελευταίο μέρος της εργασίας μας, καθώς αποτελούν τα βασικά σημεία τα οποία παρερμήνευσε η καινοφανής αίρεση του Μονοθελητισμού – Μονοενεργητισμού.
description: The aim of the present thesis was the study discrimination between natural and ‘γνώμη’ of thelima of the Christ (as God-man), and in the human more generally. This discrimination constitutes neurologic aspect of wider theological teaching of Saint Maximos. Initially we tried to describe as possible feasible; the political and ecclesiastical situation of seventh century, as well as the various situations, historical-theological through which was given birth the new teaching of Monothelitismos. At the same time however we mentioned also certain basic aspects from the heretical teaching of Monothelitismos-Monoenergitismos. Following we studied the theological and dogmatic answer of Saint Maximous the Confessor adversely in the new challenge of season. Then we presented a concise, plan of anthropology as it is presented through the written texts of Saint. We studied the constitution of human nature from her creation, as ‘κατ’ εικόνα και καθ΄ομοίωση’ of God creation. Followingly we judged essential to study also the after fall course that followed the humanity and the consequences that befell in his perishable nature. The energy and the “gnomi” are the natural characteristic elements of two natures of Christ. These were the two things we studied in the last part of our work; and these were constituted basic points that the heresy of Monothelitismou–Monoenergitismou put a wrong interpretation on.
Εικονική θερμοκοιτίδα για την προώθηση της επιχειρηματικότητας στα λογισμικά ανοιχτού κώδικα:
Creators: name: Τζώρτζη Ρεβέκκα, Σπυρίδωνος
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Εικονική θερμοκοιτίδα
Λογισμικά ανοιχτού κώδικα
Επιχειρηματικότητα
Virtual Incubator
OSS business models
Open source software

description: Σκοπός της διατριβής ήταν η διερεύνηση των θερμοκοιτίδων, και συγκεκριμένα των εικονικών θερμοκοιτίδων. Στην παρούσα εργασία εξετάζεται διεξοδικά ο σκοπός και η λειτουργία των εικονικών θερμοκοιτίδων, οι υπηρεσίες που προσφέρει, σε ποιους απευθύνονται, καθώς και η ιστορική τους αναδρομή. Παράλληλα, εστιάζουμε στις επιχειρήσεις που δραστηριοποιούνται στον ανοιχτό κώδικα, με ποιους τρόπους, ποιες προοπτικές, ποιο όφελος και σε ποιους τομείς. Τέλος, συνδυάζεται το μοντέλο της εικονικής θερμοκοιτίδας και των επιχειρήσεων ανοιχτού κώδικα, προσπαθώντας να παρουσιάσουμε με ποιο τρόπο και ποιες υπηρεσίες μια εικονική θερμοκοιτίδα μπορεί να βοηθήσει μια επιχείρηση ανοιχτού κώδικα. Στην προσπάθεια αυτή υλοποιείται ένα πρότυπο εικονικής θερμοκοιτίδας, το οποίο περιλαμβάνει όλες τις πτυχές και σημαντικά συστατικά μιας πραγματικής εικονικής θερμοκοιτίδας. Τελικός σκοπός της εργασίας είναι να διευκρινιστεί η συμβολή της εικονικής θερμοκοιτίδας στην ανάπτυξη των νέων επιχειρήσεων ανοιχτού κώδικα, ορίζοντας το πλαίσιο των προσφερόμενων υπηρεσιών και τα ωφέλει των νεοσύστατων επιχειρήσεων από την εικονική θερμοκοιτίδα.
description: The purpose of this study was to investigate the incubators, manly virtual incubators. This paper examines, in detail, the purpose and operation of virtual incubators, the services offered, to whom they are addressed, and the historical background. Furthermore, we focus on firms in open source and their activity, prospects, benefits and their business area. Finally, we combine the model of business incubator with the OSS firms, to show how and what services a virtual incubator can offer. In this effort, we implement a model of a virtual incubator, which includes all aspects and important components of a true virtual incubator. The ultimate aim of this study is to clarify the contribution of the virtual incubator for the development of new businesses open source, setting the framework of services and benefits start-ups from the virtual incubator.
Photon heat transport in low-dimensional nanostructures
Creators: name: Ojanen, Teemu
name: Heikkila, Tero T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: At low temperatures when the phonon modes are effectively frozen, photon transport is the dominating mechanism of thermal relaxation in metallic systems. Starting from a microscopic many-body Hamiltonian, we develop a nonequilibrium Green's function method to study energy transport by photons in nanostructures. A formally exact expression for the energy current between a metallic island and a one-dimensional electromagnetic field is obtained. From this expression we derive the quantized thermal conductance as well as show how the results can be generalized to nonequilibrium situations. Generally, the frequency-dependent current noise of the island electrons determines the energy transfer rate.
description: 4 pages, 3 Figs
Agrion elegans Van der Linden 1825
Creators: name: Hagen, H.
Publisher: name: Zenodo
Year: 1863
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Lestidae
Agrion
Agrion elegans

description: 47. A. elegans Van der Lind.
Syrien (Lederer), Cypern Klein-Asien, ganz Europa.
description: Published as part of Hagen, H., 1863, Die Odonaten- und Nenropteren-Fauna Syriens und Klein-Asiens, pp. 193-199 in Wiener Entomologische Monatschrift 7 on page 198, DOI: 10.5281/zenodo.3528093
RHIC Results on J/Psi
Creators: name: Leitch, M. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Quarkonia ($J/ψ$, $ψ$', $Υ$) production provides a sensitive probe of gluon distributions and their modification in nuclei; and is a leading probe of the hot-dense (deconfined) matter created in high-energy collisions of heavy ions. We will discuss the current understanding of the production process and of the cold-nuclear-matter effects that modify this production in nuclei in the context of recent p+p and p(d)+A quarkonia measurements. Then we will review the latest results for nucleus-nucleus collisions from RHIC, and together with the baseline results from d+A and p+p collisions, discuss several alternative explanations for the observed suppressions and future prospects for distinguishing these different pictures.
description: 8 pages, 12 figures, proceedings for Quark Matter 2006 Plenary talk
Monte-Carlo simulation of localization dynamics of excitons in ZnO and CdZnO quantum well structures
Creators: name: Makino, T.
name: Saito, K.
name: Ohtomo, A.
name: Kawasaki, M.
name: Senger, R. T.
name: Bajaj, K. K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Localization dynamics of excitons was studied for ZnO/MgZnO and CdZnO/MgZnO quantum wells (QW). The experimental photoluminescence (PL) and absorption data were compared with the results of Monte Carlo simulation in which the excitonic hopping was modeled. The temperature-dependent PL linewidth and Stokes shift were found to be in a qualitatively reasonable agreement with the hopping model, with accounting for an additional inhomogeneous broadening for the case of linewidth. The density of localized states used in the simulation for the CdZnO QW was consistent with the absorption spectrum taken at 5 K.
description: 4 figures, to appear in J. Appl. Phys
คลื่นประชาธิปไตย 3 ช่วง โดยฮันติงตัน กับมิติพัฒนาการทางการเมืองในระบอบการปกครองประชาธิปไตยสลับเส้นทางนอกระบบการเมืองในไทย
Creators: name: เพ็ญพิสุทธิ์ ไชยกาญจน์
Publisher: name: มหาวิทยาลัยนอร์ทกรุงเทพ
Year: 2558
Subjects: คลื่นประชาธิปไตย
มิติพัฒนาการทางการเมือง

description: วารสารวิชาการ มหาวิทยาลัยนอร์ทกรุงเทพ, 4, 1, 1-8
Η εθνική ταυτότητα ως αντικείμενο στρατηγικής- Nation Branding:
Creators: name: Χλωπτσίδου, Φωτεινή Σιδέρη
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Εθνική ταυτότητα
Στρατηγική
Διαχείριση εθνικής ταυτότητας
national identity
strategy
nation branding

description: Η παρούσα εργασία έχει ως αντικείμενο μελέτης την εθνική ταυτότητα ως αντικείμενο στρατηγικής. Αρχικά, δίνεται ένα σύντομος ορισμός της εθνικής ταυτότητας, αναλύονται επιγραμματικά τα χαρακτηριστικά του χαρακτήρα των Ελλήνων και οριοθετείται η θέση της εθνικής ταυτότητας στην εποχή της παγκοσμιοποίησης. Στη συνέχεια αναλύεται η σχέση του εμπορικού branding με το nation branding, ενώ παράλληλα γίνεται και μια σύγκριση με τη δημόσια διπλωματία. Επικεντρώνεται στους παράγοντες που μπορούν να αποτελέσουν ανταγωνιστικά πλεονεκτήματα και να διαμορφώσουν την εικόνα μιας χώρας, στη μέθοδο λειτουργίας της εν λόγω στρατηγικής και στους στόχους και στα οφέλη που προκύπτουν από αυτή. Τέλος, αναφέρονται χώρες που εφάρμοσαν τη στρατηγική αυτή, αναπτυγμένες και αναπτυσσόμενες και γίνεται ειδική αναφορά για την Ελλάδα.
description: The present essay focuses on the study of national identity as a strategic. Initially given a short definition of national identity, analyses briefly the characteristics of the Greek character, defines the position of national identity in the era of globalization. Then analyzes the relation between branding and nation branding, while comparison is also made with public diplomacy. Focuses on factors that may be a competitive advantage and shape the image of the country, on the method of operation of this strategy and on the objectives and benefits of this. Finally, mentions developed and developing countries that have implemented this strategy, and contains a specific reference to Greece.
Η επίδραση του Ευρωπαϊκού Δικαίου στις θεμελιώδεις αρχές της διοικητικής διαδικασίας:
Creators: name: Αθανασιάδου, Νατάσα Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Διοικητική διαδικασία
Θεμελιώδεις αρχές
Ευρωπαϊκό Δίκαιο
Administrative procedure
Fundamental principles
European Union law

description: Στόχο της μεταπτυχιακής αυτής εργασίας αποτελεί η εξέταση της επίδρασης του κοινοτικού δικαίου στις θεμελιώδεις αρχές της διοικητικής διαδικασίας στην ελληνική έννομη τάξη. Από τις περισσότερες θεμελιώδεις αρχές που διέπουν τη διοικητική διαδικασία το αντικείμενο της μελέτης περιορίζεται μόνο στις τρεις βασικές εκφάνσεις του δικαιώματος χρηστής διοίκησης, όπως αποτυπώνονται στο άρθρο 41 παρ. 2 του Χάρτη Θεμελιωδών Δικαιωμάτων της Ευρωπαϊκής Ένωσης και συγκεκριμένα στο δικαίωμα πρόσβασης στο φάκελο, στο δικαίωμα προηγούμενης ακρόασης και στην αρχή της αιτιολογίας των διοικητικών πράξεων. Ειδικότερα, στο πρώτο κεφάλαιο εξετάζεται το ζήτημα της αρμοδιότητας της ρύθμισης των κανόνων της διοικητικής διαδικασίας στο ευρωπαϊκό διοικητικό δίκαιο. Στα πλαίσια του κεφαλαίου αυτού θεμελιώνεται αρχικά η διαδικαστική αυτονομία των κρατών μελών καθώς και ο κατ’ αποτέλεσμα περιορισμός της μέσα από τις αρχές της ισοδυναμίας και αποτελεσματικότητας του κοινοτικού δικαίου. Στο δεύτερο κεφάλαιο αναλύεται το περιεχόμενο των τριών κοινοτικών θεμελιωδών αρχών της διοικητικής διαδικασίας, όπως προκύπτει από το πρωτογενές και το δευτερογενές κοινοτικό δίκαιο και έχει ερμηνευθεί από το Δικαστήριο της Ευρωπαϊκής Ένωσης. Τέλος, στο τρίτο κεφάλαιο επιχειρείται η συσχέτιση των κοινοτικών θεμελιωδών αρχών με τις αντίστοιχες εθνικές, με έμφαση στα σημεία σύγκλισης αλλά και τριβής τους.
description: The aim of this master thesis is to examine the effect of Community law on the fundamental principles of the administrative procedure in the Greek legal system. The object of study is limited to the three key dimensions of the right to good administration, as ensured in the Article 41 par. 2 of the Charter of Fundamental Rights of the EU and in particular the right of every person to be heard, before any individual measure which would affect him or her adversely is taken, the right of every person to have access to his or her file and the obligation of the administration to give reasons for its decisions. The first chapter examines whether the EU is competent to regulate the rules of administrative procedure in the European administrative law. The second chapter analyzes the content of the three fundamental principles as ensured in the primary and secondary Community law and interpreted by the Court of Justice of the EU. Finally, the third chapter attempts to relate these fundamental European principles of the administrative procedure with the relevant national ones, with emphasis on the key points of convergence and friction.
DML-GANR: Deep Metric Learning With Generative Adversarial Network Regularization for High Spatial Resolution Remote Sensing Image Retrieval
Creators: name: Cao, Yun
name: Wang, Yuebin
name: Peng, Junhuan
name: Zhang, Liqiang
name: Xu, Linlin
name: Yan, Kai
name: Li, Lihua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: With a small number of labeled samples for training, it can save considerable manpower and material resources, especially when the amount of high spatial resolution remote sensing images (HSR-RSIs) increases considerably. However, many deep models face the problem of overfitting when using a small number of labeled samples. This might degrade HSRRSI retrieval accuracy. Aiming at obtaining more accurate HSR-RSI retrieval performance with small training samples, we develop a deep metric learning approach with generative adversarial network regularization (DML-GANR) for HSR-RSI retrieval. The DML-GANR starts from a high-level feature extraction (HFE) to extract high-level features, which includes convolutional layers and fully connected (FC) layers. Each of the FC layers is constructed by deep metric learning (DML) to maximize the interclass variations and minimize the intraclass variations. The generative adversarial network (GAN) is adopted to mitigate the overfitting problem and validate the qualities of extracted high-level features. DML-GANR is optimized through a customized approach, and the optimal parameters are obtained. The experimental results on the three data sets demonstrate the superior performance of DML-GANR over state-of-the-art techniques in HSR-RSI retrieval.
description: 17 pages
Κοινωνία και παιδεία. Θέσεις κοινωνιολογίας του χριστιανισμού:
Creators: name: Καραγκούνη, Σωτηρία Ανδρέα
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Κοινωνία
Παιδεία
Χριστιανική αγωγή
Society
Education
Christian education

description: Η παρούσα μελέτη διερευνά τις έννοιες της Κοινωνίας και της Παιδείας και τον τρόπο αλληλεπίδρασης μεταξύ τους, σύμφωνα με τις απόψεις των αρχαίων Ελλήνων φιλοσόφων, των Πατέρων της Ορθόδοξης Εκκλησίας και της σύγχρονης επιστήμης. Η Παιδεία ως θεσμός της Κοινωνίας αντικατοπτρίζει την εκάστοτε κοινωνική πραγματικότητα. Διερευνάται η λειτουργία της, όχι μόνο ως σκόπιμης μεταβίβασης γνώσεων και πληροφοριών, αλλά και ως διατήρησης κοινωνικών αντιλήψεων, τρόπων συμπεριφοράς, αξιών και προτύπων. Επίσης μελετάται ο ρόλος της παιδείας στη διαμόρφωση νέων ιδεών και στάσεων ζωής, κυρίως σύμφωνα με το πρότυπο της Χριστοκεντρικής αγωγής. Με την ανάλυση των απ[όψεων της σύγχρονης Παιδαγωγικής επιστήμης επισημαίνεται η διάσταση της γνωσιοκρατικής και της επικοινωνιοκεντρικής αγωγής. Ως συμπέρασμα επιβεβαιώνεται η αξία των χριστιανικών αρχών του σεβασμού του προσώπου, του βιώματος και των ανθρωπίνων σχέσεων στα πλαίσια της κοινότητας και η δύναμή τους στη διαμόρφωση των χριστιανικών ηθικών αξιών, ιδανικών και προτύπων και στην ανακαίνιση του ανθρώπου.
description: This study explores the concepts of Society and Education and how they interact in accordance with the views of the ancient Greek philosophers, the Fathers of the Orthodox Church and modern science. Education, as an institution of the Society, reflects the concurrent social reality. The function of Education is researched as not only the purposive transfer of knowledge and information, but also as a conservation of social attitudes, modes of behavior, values and exemplars. It is also studied the role of education in shaping new ideas and attitudes in life, mainly according to the model of Christocentric education. Analysing the views of modern Pedagogy, the division between the aspect of knowledge-based and communication/contact-based education is highlighted. In conclusion, the value of Christian principles, as the respect for the person, for the experience and for human relations within the community is proved. As well, the power of these prenciples in the formation of Christian moral values, ideals and exemplars is confirmed and leads to the renovation of man.
Phase Change Logic via Thermal Cross-Talk for Computation in Memory
Creators: name: Kanan, Nadim
name: Khan, Raihan Sayeed
name: Woods, Zachary
name: Silva, Helena
name: Gokirmak, Ali
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have computationally demonstrated logic function implementations using lateral and vertical multi-contact phase change devices integrated with CMOS circuitry, which use thermal cross-talk as a coupling mechanism to implement logic functions at smaller CMOS footprints. Thermal-crosstalk during the write operations is utilized to recrystallize the previously amorphized regions to achieve toggle operations. Amorphized regions formed between different pairs of write contacts are utilized to isolate read contacts. Typical expected reduction in CMOS footprint is ~ 50% using the described approach for toggle-multiplexing, JK-multiplexing and 2x2 routing. The switching speeds of the phase change devices are in the order of nanoseconds and are inherently non-volatile. An electro-thermal modeling framework with dynamic materials models are used to capture the device dynamics, and current and voltage requirements.
description: 7 pages, 6 figures
Boundary and rigidity of nonsingular Bernoulli actions
Creators: name: Hasegawa, Kei
name: Isono, Yusuke
name: Kanda, Tomohiro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: Group Theory (math.GR)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics

description: Let $ G $ be a countable discrete group and consider a nonsingular Bernoulli shift action $ G \curvearrowright \prod_{g\in G }(\{0,1\},μ_g)$ with two base points. When $ G $ is exact, under a certain finiteness assumption on the measures $\{μ_g\}_{g\in G }$, we construct a boundary for the Bernoulli crossed product C$^*$-algebra that admits some commutativity and amenability in the sense of Ozawa's bi-exactness. As a consequence, we obtain that any such Bernoulli action is solid. This generalizes solidity of measure preserving Bernoulli actions by Ozawa and Chifan--Ioana, and is the first rigidity result in the non measure preserving case. For the proof, we use anti-symmetric Fock spaces and left creation operators to construct the boundary and therefore the assumption of having two base points is crucial.
description: 31 pages
Secondary gas-phase reactions of polyethylene pyrolysis: semi-detailed and global kinetics
Creators: name: Pegurri, Alessandro
name: Locaspi, Andrea
name: Mehl, Marco
name: Pelucchi, Matteo
name: Stagni, Alessandro
name: Faravelli, Tiziano
Publisher: name: Zenodo
Year: 2024

description: Presentation on secondary gas-phase reactions of PE pyrolysis
Ο θάνατος στα έργα του Παπαδιαμάντη:
Creators: name: Δάδη, Ηρώ Σταύρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Θάνατος
Παπαδιαμάντη
Έργα
Death
Papadiamantis
Writing

description: Ο θάνατος κατέχει κυρίαρχο ρόλο σχεδόν σε όλα τα είδη των Απάντων του Παπαδιαμάντη (εκτός από τα σατιρικά). Απαντάται σε όλα τα μυθιστορήματά του και πρέπει να τονιστεί πως τα τέσσερα πρώτα έργα του (Η ΜΕΤΑΝΑΣΤΙΣ, ΟΙ ΕΜΠΟΡΟΙ ΤΩΝ ΕΘΝΩΝ, Η ΓΥΦΤΟΠΟΥΛΑ, Ο ΧΡΗΣΤΟΣ ΜΗΛΙΩΝΗΣ) έχουν έναν ή περισσότερους θανάτους, ως καταληκτικά σημεία της πλοκής. Tα χαρακτηριζόμενα ως αριστουργήματά του (Η ΦΟΝΙΣΣΑ, ΤΟ ΜΥΡΟΛΟΓΙ ΤΗΣ ΦΩΚΙΑΣ) πραγματεύονται -κύρια- τον θάνατο. Επίσης τον βρίσκουμε και στον -συντριπτικά μεγαλύτερο- αριθμό των διηγημάτων του, να παίζει οργανικό ρόλο στην ιστορία. Παρατηρούνται ομαδικοί θάνατοι και σειρές από θανάτους. Ιδίως γυναικόπαιδα πεθαίνουν από αρρώστιες, άλλα από δολοφονίες που τις διαπράττουν άντρες ή γυναίκες, για διάφορους λόγους. Οι απώλειες ζωής αντιμετωπίζονται σχεδόν σα θέλημα της μοίρας, ενίοτε σαν τιμωρία - ποτέ όμως σαν ταμπού. Προαισθήματα για τον θάνατο υπάρχουν λιγοστά∙ στις γυναίκες, κυρίως, αποδίδεται αυξημένη διαίσθηση. Παρατηρούμε επίσης την κυρίαρχη συμβολή του γυναικείου φύλου και σε καθημερινές πρακτικές, που σχετίζονται με δυσάρεστα ‘‘καθήκοντα θανάτου’’. Στο παπαδιαμαντικό έργο γίνεται ιδιαίτερη μνεία στα μοιρολόγια. Τέλος, γεμάτη είναι η συγγραφική φαρέτρα του Παπαδιαμάντη με ταφικά έθιμα, αφού είναι έκδηλη η αποδοχή του στα ήθη, τα έθιμα και τις παραδόσεις του λαού μας.
description: Death holds a primary role almost in all kinds of Papadiamantis’ collected works (except for the satyric ones). It is constantly present in his four novels; one or more deaths mark the ending of the story in MIGRANT, MERCHANTS ΟF NATIONS, GIPSY GIRL, CHRISTOS MILIONIS. In his masterpieces (MURDERESS, THE SEAL’S BEWAILING) death is the main theme. Moreover, death features the plot in most of Papadiamantis’ tales. Death sequence and massive deaths are generally noticeable. Usually women and children die, from illness or assassination, being both males and females the criminals - for a variety of reasons. Papadiamantis presents life loss as the will of destiny or –sometimes- as a punishment but never as a taboo.They also exist a few forefeelings about death; intuition is attributed mainly to women - females always contribute the most to daily practices related to the unpleasant “death duties”. Furthermore, in Papadiamantis’ writing there are significant references to funeral songs. In conclusion, Papadiamantis’ auctorial quiver is full with burial customs, revealing the author’s undoubted endorsement to morals and tradition of the Greek people.
Adaptive estimation of the transition density of a Markov chain
Creators: name: Lacour, Claire
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62M05 ; 62G05 ; 62H12

description: In this paper a new estimator for the transition density $π$ of an homogeneous Markov chain is considered. We introduce an original contrast derived from regression framework and we use a model selection method to estimate $π$ under mild conditions. The resulting estimate is adaptive with an optimal rate of convergence over a large range of anisotropic Besov spaces $B_{2,\infty}^{(α_1,α_2)}$. Some simulations are also presented.
Agrion pulchellum Van der Linden 1825
Creators: name: Hagen, H.
Publisher: name: Zenodo
Year: 1863
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Lestidae
Agrion
Agrion pulchellum

description: 48. A. pulchellum Van der Lind.
 Klein-Asien, Algier (?) ganz Europa.
description: Published as part of Hagen, H., 1863, Die Odonaten- und Nenropteren-Fauna Syriens und Klein-Asiens, pp. 193-199 in Wiener Entomologische Monatschrift 7 on page 198, DOI: 10.5281/zenodo.3528093
Agrion hastulatum Charpentier 1825
Creators: name: Hagen, H.
Publisher: name: Zenodo
Year: 1863
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Calopterygidae
Agrion
Agrion hastulatum

description: 49. A. hastulatum Charp.
Klein-Asien, ganz Europa, Sibirien bis Irkutzk.
description: Published as part of Hagen, H., 1863, Die Odonaten- und Nenropteren-Fauna Syriens und Klein-Asiens, pp. 193-199 in Wiener Entomologische Monatschrift 7 on page 198, DOI: 10.5281/zenodo.3528093
Boundary Conditions and Dualities: Vector Fields in AdS/CFT
Creators: name: Marolf, Donald
name: Ross, Simon
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In AdS, scalar fields with masses slightly above the Breitenlohner-Freedman bound admit a variety of possible boundary conditions which are reflected in the Lagrangian of the dual field theory. Generic small changes in the AdS boundary conditions correspond to deformations of the dual field theory by multi-trace operators. Here we extend this discussion to the case of vector gauge fields in the bulk spacetime using the results of Ishibashi and Wald [hep-th/0402184]. As in the context of scalar fields, general boundary conditions for vector fields involve multi-trace deformations which lead to renormalization-group flows. Such flows originate in ultra-violet CFTs which give new gauge/gravity dualities. At least for AdS4/CFT3, the dual of the bulk photon appears to be a propagating gauge field instead of the usual R-charge current. Applying similar reasoning to tensor fields suggests the existence of a duality between string theory on AdS4 and a quantum gravity theory in three dimensions.
description: 26 pages, significant references added
Cooperative Behavior and Pattern Formation in Mixtures of Driven and Nondriven Colloidal Assemblies
Creators: name: Reichhardt, C.
name: Reichhardt, C. J. Olson
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We simulate a disordered assembly of particles interacting through a repulsive Yukawa potential with a small fraction of the particles coupled to an external drive. Distortions in the arrangement of the nondriven particles produce a dynamically induced effective attraction between the driven particles, giving rise to intermittent one-dimensional stringlike structures. The velocity of a moving string increases with the number of driven particles in the string. We identify the average stable string length as a function of driving force, background particle density, and particle charge. This model represents a new type of collective transport system composed of interacting particles moving through deformable disorder.
description: 4 pages, 4 postscript figures