cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ο αγροτικός τομέας στην αρχαία Ελλάδα-εξέλιξη και ανάπτυξη
Creators: name: Κουτσούκος, Μάριος Ηλία
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Αγροτικός τομέας
Αρχαία Ελλάδα
Αγροτική οικονομία στην αρχαιότητα
Σόλων, Πεισίστρατος, Λυκούργος
Εμπόριο αγροτικών προϊόντων στην κλασσική εποχή
Αγροτικός βίος στην αρχαιότητα
Agricultural development in ancient Greece
Agricultural policies in antiquity
Solon, Peisistratos, Lycourgos

description: Η διατριβή έχει ως αντικείμενο εξέτασης την εξέλιξη και ανάπτυξη του αγροτικού τομέα στην αρχαία Ελλάδα/ Αναλύονται διεξοδικά οι μεταρρυθμίσεις του Σόλωνα στην αρχαία Ελλάδα, οι αγροτικές πολιτικές του Πεισίστρατου και τα ιδιαίτερα χαρακτηριστικά της αθηναϊκής αγροτικής οικονομίας. Εξάλλουμ γινεται αναφορά στην αγροτική οικονομία της αρχαίας Σπάρτης με τη μεταρρύθμιση του Λυκούργου και τις αγροτικές πολιτικές των βασιλέων Αγι και Κλεομένη. Εκτενής αναφορά υπάρχει και για την ανάπτυξη της γεωργίας στην αρχαία Μακεδονία. Συνοπτικά, η διατριβή επιχειρεί μια ανάλυση της επίδρασης του αγροτικού τομέα στην οικονομική, κοινωνική και πολιτιστική ανάπτυξη της αρχαίας Ελλάδας
description: This postgraduate study examines the role and impact of the agricultural sector in ancient Greece as far as the economic, social and political aspect is concerned. There is a thorough analysis of the development of agriculture in ancient Athens, Sparta and Macedonia
An energy-conserving formalism for adaptive gravitational force softening in SPH and N-body codes
Creators: name: Price, D. J.
name: Monaghan, J. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we describe an adaptive softening length formalism for collisionless N-body and self-gravitating Smoothed Particle Hydrodynamics (SPH) calculations which conserves momentum and energy exactly. This means that spatially variable softening lengths can be used in N-body calculations without secular increases in energy. The formalism requires the calculation of a small additional term to the gravitational force related to the gradient of the softening length. The extra term is similar in form to the usual SPH pressure force (although opposite in direction) and is therefore straightforward to implement in any SPH code at almost no extra cost. For N-body codes some additional cost is involved as the formalism requires the computation of the density via a summation over neighbouring particles using the smoothing kernel. The results of numerical tests demonstrate that, for homogeneous mass distributions, the use of adaptive softening lengths gives a softening which is always close to the `optimal' choice of fixed softening parameter, removing the need for fine-tuning. For a heterogeneous mass distribution (as may be found in any large scale N-body simulation) we find that the errors on the least-dense component are lowered by an order of magnitude compared to the use of a fixed softening length tuned to the densest component. For SPH codes our method presents a natural and elegant choice of softening formalism which makes a small improvement to both the force resolution and the total energy conservation at almost zero additional cost.
description: 13 pages, 8 figures, accepted to MNRAS
Υδατικό δυναμικό των χειμάρρων από δασοπολιτική άποψη
Creators: name: Βουλγαρίδου, Ευθαλία Ευσταθίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Υδατικό δυναμικό
Νομοθεσία της διαχείρισης των υδάτων
Υδρολογικός κύκλος
Περιφερειακή πολιτική στην Ευρώπη
Χείμαρρος
Λειψυδρία
Water capacity
Legislation on administration of water resources
Hydrological cycle
Regional policy in Europe
Streams
Water famine

description: Η συγκεκριμένη μελέτη επικεντρώνεται στη μεγάλη σημασία που έχει η ορθολογική διαχείριση των υδατικών πόρων στον Ελλαδικό χώρο εξαιτίας του τεράστιου προβλήματος της λειψυδρίας που υπάρχει όχι μόνο στην Έλλάδα αλλά και διεθνώς όπως επίσης και στην Ευρωπαϊκή κοινοτική νομοθεσία γύρω από τη διαχείριση των υδάτων, καθώς και στα μέτρα που θα πρέπει να εφαρμοστούν για μια περαιτέρω αγροτική και περιφερειακή ανάπτυξη μέσω της αξιοποίησης των υδατικών πόρων
description: This certain project focuses on the great importance of the orthological administration of water resources in Greece because of the water famine that occures, not only to Greece but also in many other countries all over the world as well as on the european community legislation that has to do with wafers and finally the measures that must be taken for further agricaltural and regional development through the utilizaiton of water resources
Fotografías de la familia de Juan Francisco López
Creators: name: Francisco Quinchuya, César
name: Francisco Quinchuya, Juanito
name: Francisco Quinchuya, Timoteo
name: Francisco Quinchuya, Yurich
name: López, Margarita
name: Quinchuya, Justina
name: Santos Granero, Fernando
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: ame

description: 9 ficheros JPG.
New Limits on Coupling of Fundamental Constants to Gravity Using $^{87}$Sr Optical Lattice Clocks
Creators: name: Blatt, S.
name: Ludlow, A. D.
name: Campbell, G. K.
name: Thomsen, J. W.
name: Zelevinsky, T.
name: Boyd, M. M.
name: Ye, J.
name: Baillard, X.
name: Fouché, M.
name: Targat, R. Le
name: Brusch, A.
name: Lemonde, P.
name: Takamoto, M.
name: Hong, F. -L.
name: Katori, H.
name: Flambaum, V. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The $^1\mathrm{S}_0$-$^3\mathrm{P}_0$ clock transition frequency $ν_\text{Sr}$ in neutral $^{87}$Sr has been measured relative to the Cs standard by three independent laboratories in Boulder, Paris, and Tokyo over the last three years. The agreement on the $1\times 10^{-15}$ level makes $ν_\text{Sr}$ the best agreed-upon optical atomic frequency. We combine periodic variations in the $^{87}$Sr clock frequency with $^{199}$Hg$^+$ and H-maser data to test Local Position Invariance by obtaining the strongest limits to date on gravitational-coupling coefficients for the fine-structure constant $α$, electron-proton mass ratio $μ$ and light quark mass. Furthermore, after $^{199}$Hg$^+$, $^{171}$Yb$^+$ and H, we add $^{87}$Sr as the fourth optical atomic clock species to enhance constraints on yearly drifts of $α$ and $μ$.
description: Published version. 4 pages, 4 figures
Η καταπιστευτική (εξασφαλιστική) εκχώρηση απαιτήσεων σε τράπεζα
Creators: name: Τερζή, Σοφία Επαμεινώνδα
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Καταπιστευτικός
Εκχώρηση
Απαίτηση
Τράπεζα
Εξασφάλιση
Πίστωση
Secured
Concession
Demand
Bank
Securing
Credit

description: Η καταπιστευτική εκχώρηση απαιτήσεων είναι μια σύγχρονη μορφή εξασφάλισης απαιτήσεως που κερδίζει ολοένα έδαφος στις συναλλαγές μεταξύ των Τραπεζών και των πελατών τους. Με την καταπιστευτική εκχώρηση απαίτησης, ο οφειλέτης για να εξασφαλίσει το δανειστή του (Τράπεζα) μεταβιβάζει σε αυτόν απαίτηση του κατά τρίτου οφειλέτη. Η εκδοχέας Τράπεζα γίνεται δικαιούχος της απαίτησης αλλά ταυτόχρονα αναλαμβάνει με ιδιαίτερη συμφωνία απέναντι στον εκχωρητή την υποχρέωση να χρησιμοποιήσει τις έννομες εξουσείς που του δίνει η ιδιότητα της δικαιούχου της απαίτησης μόνο στα πλαίσια του επιδιωκόμενου εξασφαλιστικού σκοπού, αποφεύγοντας κάθε χρησιμοποίηση ή διάθεση της απαίτησης, που δεν θα ήταν απαραίτητη για τον σκοπό αυτό. Θεμέλιο αυτής της μορφής εκχώρησης αποτελεί η εξασφαλιστική συμφωνία (fiducio) για την οποία αμφισβητείται αν μπορεί να αποτελέσει νόμιμη αιτία (iusta causa) της μεταβίβασης. Ηδη εκδόθηκε ο ν. 2844/2000 που αναγνωρίζει τη fiducia και θέτει νέες βάσεις σε αυτή τη σύγχρονη μορφή εξασφάλισης
description: The securing concession of demands is a modern type of securement most frequently observed at the relations between banks and their clients. By this concession the bank obtains the demand against a third person, but at the same time it has the obligation to use this demand within the purpose of its securement, according to the special agreement between the bank and its client, and to avoid any further concession, which would cancel this purpse. The foundation of this type of concession is the securing agreement (fiducia). The law 2844/2000 has put the whole matter of securing concession to a new level and has officially recognised fiducia
Φύλο και Εμπορία ανθρώπων με στόχο την εργασιακή εκμετάλλευση στην Ελλάδα: μια νομικό-κοινωνιολογική προσέγγιση
Creators: name: Σπανδωνίδου, Ελευθερία Χαράλαμπου
Publisher: name: Aristotle University of Thessaloniki
Year: 2024
Subjects: Κοινωνιολογία δικαίου
Εμπορία ανθρώπων
Ελλάδα
Sociology of Law
Human Trafficking
Greece

description: Παρά τις προσπάθειες που έχουν γίνει για την καταπολέμηση της εμπορίας ανθρώπων τις τελευταίες δεκαετίες, η εμπορία ανθρώπων παραμένει ένα σημαντικό παγκόσμιο ζήτημα ανθρωπίνων δικαιωμάτων, με εκτιμώμενα 40,3 εκατομμύρια θύματα. Ωστόσο, η φύση της εμπορίας ανθρώπων ως έγκλημα που συχνά παραμένει κρυφό δημιουργεί αντιφάσεις ή ασυνέπειες στις αναφορές ή στις πληροφορίες που λαμβάνουμε σχετικά με το θέμα. Αυτό δυσκολεύει την εύρεση ακριβών δεδομένων και την πλήρη κατανόηση της εικόνας. Οι νομικές διαδικασίες που αφορούν την εμπορία ανθρώπων μπορεί να αποκαλύπτουν ένα μέρος της εκτάσεως της ανθρώπινης εκμετάλλευσης που λαμβάνει χώρα εντός των χωρών. Παρά την εκτενή έρευνα, τα κίνητρα που οδηγούν στην εμπορία ανθρώπων παραμένουν ασαφή. Μέσα από την παρούσα εργασία θα δούμε το θεωρητικό και το νομικό πλαίσιο. Ωστόσο απαιτείται περαιτέρω έρευνα για να κατανοήσουμε καλύτερα τα κίνητρα και τη συμπεριφορά των εμπόρων και το τι καθοδηγεί την εμπορία σε εθνικό και διεθνές επίπεδο.
description: Despite efforts to combat human trafficking in recent decades, human trafficking remains a major global human rights issue, with an estimated 40.3 million victims. However, the nature of human trafficking as a crime that often remains hidden creates contradictions or inconsistencies in the reports or information received on the issue. This makes it difficult to find accurate data and fully understand the picture. Legal processes relating to human trafficking may reveal some of the extent of human exploitation that takes place within countries. Despite extensive research, the motivations driving trafficking remain unclear. Through this paper we will look at the theoretical and legal framework. However, further research is needed to better understand the motivations and behaviour of traffickers and what drives trafficking at national and international level.
Deploying heavier $η$ meson states: configurational entropy hybridizing AdS/QCD
Creators: name: da Rocha, Roldao
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The meson family of $η$ pseudoscalars is studied in the context of the AdS/QCD correspondence and the differential configurational entropy (DCE). For it, two forms of configurational-entropic Regge-like trajectories are engendered, relating the $η$ mesonic states excitation number to both their experimental mass spectrum in the Particle Data Group (PDG) and the DCE as well. Hence, the mass spectrum of $η$ pseudoscalar mesonic states, beyond the already detected states $η(550)$, $η'(958)$, $η(1295)$, $η(1405)$, $η(1475)$, $η(1760)$, $η(2225)$, and $η(2320)$, is derived for any excitation number. The three first ulterior members of this family are then analyzed and also compared to existing candidates in PDG.
description: 7 pages, 3 figs, additional results; published version
Berkeley και Kant (Μπέρκλεϊ και Κάντ)
Creators: name: Τοσουνίδου, Αλεξάνδρα Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Μπέρκλεϊ
Δογματισμός
Σολιψισμός (υποκειμενικός ιδεαλισμός)
Ο Κάντ και η αναίρεση του δογματικού επιχειρήματος του Berkeley
Φαινόμενο
Πράγμα καθαυτό
Berkeley
Central argument
Esse est percipi
Kant's refutation of dogmatic idealism
Transcendental idealism

description: Ο Kant αφενός επιχειρεί να αναιρέσει τον "προβληματικό" ιδεαλισμό του Descartes κι αφετέρου να φέρει σε αντιδιαστολή τον υπερβατολογικό ιδεαλισμό ή κριτικό ιδεαλισμό του από το δογματικό ιδεαλισμό του Berkeley. Ο Kant τονίζει ότι υπερβατολογικός ιδεαλισμός είναι εμπειρικός ρεαλισμός, ο οποίος καταφάσκει στην ύπαρξη εξωτερικών αντικειμένων και συνεπώς διαφέρει από εκείνου του Berkeley που πρεσβεύει πως ότι υπάρχει είναι τα πνεύματα και οι παραστάσεις τους. Εξάλλου ο κριτικός ιδεαλισμός του Kant πρεσβεύει ότι ο νούς καθορίζει μόνο τη μορφή της εμπειρίας μας αντίθετα με τον ιδεαλισμό του Berkeley ο οποίος διατείνεται ότι ο νούς καθορίζει όχι μόνο τη μορφή αλλά και την ύλη της εμπειρίας. Ο Καντ απορρίπτει τη βασική αρχή του Berkeley esse est percipi και μολονότι δεν μπορεί να εγείρει αξίωση των πραγμάτων καθαυτά (αγνωστικισμός) δεν αρνείται την ύπαρξή τους. Συνοψίζοντας θα μπορούσαμε να πούμε ότι η βασική διαφορά ανάμεσα στη φιλοσοφία του Berkeley και στη φιλοσοφία του Καντ είναι η κριτική διάσταση της τελευταίας η οποία τον οδηγεί στην απόρριψη όλων των επιχειρημάτων του Berkeley σχετικά με την ύπαρξη του Θεού και της ψυχής
description: Kant on the one hand, attempts to reverse the problematic idealism of Descartes. On the other hand he attempts to oppose his own transcendental or critical idealism to Berkeley's dogmatic one. Kant insists that the critical idalism is clearly empirical realism which affirms the existence of external objects. Kant's idealism therefore, differs from that one of Berkeley who asserts that the spirits and their representations only exist. However, Kant's critical idealism maintains that the mind determines only the form of our experience. His views on the matter are the contrary of what Berkeley believes on idealism. He asserts that the mind defines not only the form but also the substance of experience. Kant rejects the fundamental principle of Berkeley (esse est percipi). He doesn't refuse the existence of objects although he can't set up a claim of knowing the objects themselves (agnosticism). The basic differece between Berkeley and Kant's philosophy is the critical disagreement of the last one
Complexity of Self-similar Hierarchical Ensembles
Creators: name: Olemskoi, A. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Within the framework of generalized combinatorial approach, the complexity is determined for infinite set of self-similar hierarchical ensembles. This complexity is shown to increase with strengthening of the hierarchy coupling to the value, which decreases with growth of both scattering of this coupling and non-extensivity parameter.
description: 7 pages, 3 figures
Σχέση της φυσικής δραστηριότητας με τη δυναμική ισορροπία και με παραμέτρους της ψυχικής υγείας σε ηλικιωμένους
Creators: name: Σκόνδρας, Γεώργιος Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Βάδισμα
Δυναμική ισορροπία
Ψυχική υγεία
Φυσική δραστηριότητα
Walking
Dynamic balance
Mental health
Psychological health
Physical activity

description: Ο σκοπός της παρούσας έρευνας ήταν να μελετηθεί η σχέση της φυσικής δραστηριότητας που καθορίζεται από το βάδισμα αλλά και άλλες ασχολίες της καθημερινής ζωής με την ικανότητα δυναμικής ισορροπίας των ηλικιωμένων, καθώς και άλλες παραμέτρους της ψυχικής υγείας. Στην έρευνα συμμετείχαν 150 άτομα, 58 - 84 ετών (ΜΟ=71,99, ΤΑ=6,13) από τρεις ηλικιακές κατηγορίες: 58- 64 ετών (1 άνδρας - 12 γυναίκες), 65 - 74 ετών (10 άνδρες - 62 γυναίκες), 75- 84 ετών (22 άνδρες - 43 γυναίκες). Χρησιμοποιήθηκαν ερωτηματολόγια για την αξιολόγηση των παραμέτρων της ψυχικής υγείας: ψυχική ευεξία, αυτό-εκτίμηση, αυτοπεποίθηση κατά την εκτέλεση κινητικών δεξιοτήτων που απαιτούν ισορροπία και φόβος. Η φυσική δραστηριότητα καταγράφηκε σε εβδομαδιαία βάση με το ερωτηματολόγιο PASE, ενώ για το ίδιο διάστημα καταγράφηκε και ο αριθμός των βημάτων με βηματόμετρα. Από την περιγραφική στατιστική φάνηκε ότι η ΦΔ των ηλικιωμένων καθορίζεται κυρίως από το βάδισμα και τις δουλειές στο σπίτι. Οι συσχετίσεις της ΦΔ με τις μεταβλητές που αξιολογήθηκαν, διαφοροποιήθηκαν ανά ηλικιακή κατηγορία. Η δυναμική ισορροπία συσχετίστηκε σημαντικά με το σκορ των βηματομέτρων και του PASE μόνο στην ηλικιακή κατηγορία 65-74 ετών (p
description: The aim of the present study was to find the relation of habitual physical activity, which is determined mainly by walking and other activities of daily life, with dynamic balance and other aspects of psychological health in the elderly. The participants were 150 persons, 58 - 84 years (MO=71.99, the = 6,13) covering three age groups: older adults, (58 - 64 years, 1 man - 12 women), young old (65 - 74 years, 10 men - 62 women), and old (75 - 84 years, 22 men - 43 women). It was measured well-being, self-esteem, balance self-confidence, and fear of falling by questionnaires. Physical Activity (PA) was assessed by pedometers and subjectively by the PASE questionnaire. From the results it appeared that PA was determined mainly by walking and housework. The correlations between PA and the variables measured were differentiated according to the age group. Dynamic balance was significantly correlated with the pedometer and total PASE score only in the 65-74 age group (p
Detecting the ambient neutralino dark matter particles at accelerator
Creators: name: Feng, Tai-Fu
name: Li, Xue-Qian
name: Ma, Wen-Gan
name: Wang, Jian-Xiong
name: Zhao, Gong-Bo
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we present a new strategy to investigate the possibility of direct detection of the ambient neutralino matter at accelerator. We calculate the cross sections for both elastic and inelastic scattering processes of the dark matter particles with the beam particles at $e^+e^-$ and hadron colliders.
description: 5 pages, 4 tables
Οι σημασίες της ηδονής στο πλατωνικό έργο
Creators: name: Καραΐσκου, Αικατερίνη Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Πλάτων
Ηδονή
Φίληβος
Πολιτεία
Plato
Pleasure
Philebus
Politeia

description: Η εργασία εξετάζει αναλυτικά τις μορφές που παίρνει η ηδονή ως έννοια στους πρώιμους, μέσους και ύστερους διαλόγους του Πλάτωνα. Στην εισαγωγή γίνεται μια κατηγοριοποίηση χρονολογική όλων των διαλόγων του Πλάτωνα σε πρώιμους, μέσους και ύστερους ή γεροντικούς, εστιάζοντας στους διαλόγους, όπου συχνότερα ή έννοια της ηδονής συναντάται, δηλαδή στον "Φίληβο" και στην "Πολιτεία". Επειτα, στο κύριο μέρος της εργασίας αναλύονται όλες οι μορφές της ηδονής σε όλους τους πλατωνικούς διαλόγους βάσει της παραπάνω χρονολογικής κατηγοριοποίησης της εισαγωγής. Τέλος, αναλύονται οι γραμματικοί τύποι της ηδονής, βάσει πάλι της χρονολογικής κατηγοριοποίησης σε όλους τους πλατωνικούς διαλόγους και διατυπώνεται ένα συμπέρασμα
description: The final project of my master examines analytically the types of the meanings of pleasure in the early, meadle and old-aged dialogues of Plato. In the preface, all the dialogues of Plato, are chronologically categorized to early, meadle and old-aged, putting the significance in those dialogues, where pleasure is often found, which are : " Philebus" and "Politeia". Afterwards, throughout the main body of my project an analysis is being done about all the types of pleasure in all the platonic dialogues according to the chronological categorization of the preface. Finally, the grammatical types of pleasure are analyzed in all the platonic dialogues again according to the chronological categorization and a conclusion is being made
Επιδράσεις του Διαμοιρασμού Οπτικοακουστικού Περιεχομένου στα Μέσα Κοινωνικής Δικτύωσης: Η Σχέση των Δημιουργών με το Κοινό με Έμφαση στο TikTok και τα Σύντομα Κάθετα Βίντεο
Creators: name: Σωκράτους, Μάρα Μιχάλη
Publisher: name: Aristotle University of Thessaloniki
Year: 2024
Subjects: Δημιουργοί Περιεχομένου
TikTok
Σύντομα Κάθετα Βίντεο
Content Creators
Short Vertical Videos

description: Η συγκεκριμένη διπλωματική εργασία εστιάζει στη διερεύνηση των επιδράσεων του διαμοιρασμού οπτικοακουστικού περιεχομένου στα Μέσα Κοινωνικής Δικτύωσης και στην εξέταση της σχέσης μεταξύ ελληνόφωνων δημιουργών περιεχομένου Ελλάδας και Κύπρου και του κοινού, δίνοντας έμφαση στο TikTok και τα σύντομα κάθετα βίντεο. Η μεγάλη επιτυχία των νέων πλατφορμών κοινωνικής δικτύωσης έχει μεταβάλει ριζικά τον τρόπο δημιουργίας και διαμοιρασμού οπτικοακουστικού περιεχομένου στα Μέσα Κοινωνικής Δικτύωσης (Μ.Κ.Δ.). Με έμφαση στο TikTok, η διπλωματική αυτή αναλύει τις επιδράσεις της κοινής χρήσης σύντομων κάθετων βίντεο στο κοινό, καθώς και τον αλγόριθμό και την διαδραστικότητα της πλατφόρμας TikTok. Ερευνάται η εμπειρία της δημιουργίας σύντομης μορφής βίντεο, η σχέση δημιουργών-κοινού από την οπτική πλευρά των ελληνόφωνων TikTokers Ελλάδας και Κύπρου και η στρατηγική τους ως προς τη δημιουργία περιεχομένου. Η έρευνα διεξήχθη με ποιοτική μεθοδολογία με εργαλείο συλλογής δεδομένων τις ημιδομημένες ατομικές συνεντεύξεις.
description: This thesis focuses on researching the effects of sharing audiovisual content on Social Media and examining the relationship between Greek content creators of Greece and Cyprus and the audience, with a focus on TikTok and short vertical videos. The tremendous success of new Social Media. platforms has radically transformed the way audiovisual content is created and shared on Social Media. With an emphasis on TikTok, this thesis analyzes the impacts of sharing short vertical videos on the audience, as well as the algorithm and interactivity of the TikTok platform. It explores the experience of creating short vertical videos, the creator-audience relationship from the perspective of TikTokers from Greece and Cyprus, and their content creation strategies. The research was conducted using a qualitative methodology with semi-structured individual interviews as the data collection tool.
Large Einstein Radii: A Problem for LambdaCDM
Creators: name: Broadhurst, Tom
name: Barkana, Rennan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Einstein radius of a cluster provides a relatively model-independent measure of the mass density of a cluster within a projected radius of ~ 150 kpc, large enough to be relatively unaffected by gas physics. We show that the observed Einstein radii of four well-studied massive clusters, for which reliable virial masses are measured, lie well beyond the predicted distribution of Einstein radii in the standard LambdaCDM model. Based on large samples of numerically simulated cluster-sized objects with virial masses ~ 1e15 solar, the predicted Einstein radii are only 15-25'', a factor of two below the observed Einstein radii of these four clusters. This is because the predicted mass profile is too shallow to exceed the critical surface density for lensing at a sizable projected radius. After carefully accounting for measurement errors as well as the biases inherent in the selection of clusters and the projection of mass measured by lensing, we find that the theoretical predictions are excluded at a 4-sigma significance. Since most of the free parameters of the LambdaCDM model now rest on firm empirical ground, this discrepancy may point to an additional mechanism that promotes the collapse of clusters at an earlier time thereby enhancing their central mass density.
description: 9 pages, 5 figures, accepted by MNRAS
Οι προσωπικές και πραγματικές δουλείες επί ακινήτων στους Κώδικες της Επισκοπής Σερβίων και Κοζάνης (1815-1868)
Creators: name: Παληού, Αναστασία Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Δουλείες
Κοζάνη
Επισκοπή
Κυριότητα
Servitudes
Kozani
Bishorpic
Property

description: Η εργασία ερευνά το εφαρμοζόμενο δίκαιο τις προσωπικές και πραγματικές δουλείες επί ακινήτων στην Κοζάνη του 19ου αιώνα (1815-1868), όπως αυτό προκύπτει από τις αντίστοιχες πράξεις που έχουν καταχωρηθεί στα χειρόγραφα πρακτικά του εκκλησιαστικού δικαστηρίου της τότε Επισκοπής Σερβίων και Κοζάνης. Η Κοζάνη θεωρείται ότι συγκροτήθηκε ως οικισμός τον 14ο αιώνα, όταν οι Οθωμανοί ολοκλήρωσαν την κατάκτησή της (σημερινής) περιοχής της Δυτικής Μακεδονίας. Δεν κατοικήθηκε από Οθωμανούς και τον 18ο-19ο αιώνα εξελίχθηκε σε σημαντικό εμπορικό, βιοτεχνικό και πνευματικό κέντρο μιας ευρύτερης περιοχής. Οι προσωπικές δουλείες, που εντοπίστηκαν είναι η επικαρπία και η οίκηση, ενώ οι πραγματικές δουλείες αφορούν σε δουλείες στήριξης οικοδομής σε γειτονικό ακίνητο, παρχοής διόδου μεταξύ όμορων ακινήτων, διάνοιξης παραθύρων σε μεσοτοιχία, μη παρεμπόδισης φωτισμού, άντλησης ύδατος από γειτονικό πηγάδι και απορροής ομβρίων υδάτων. Η σύσταση και άσκηση των δουλειών στηρίζεται σε διατάξεις του βυζαντινο-ρωμαϊκού δικαίου και ειδικότερα στην "Εξάβιβλο" του Αρμενόπουλου (2.20.4-14, 2.4.1.-138)
description: This research inquires the way in which the law was put into practice for the servitudes on realty at Kozani on the 19th century (1815-1868), according to the respective legal acts which are inserted in the handwritten records of the church court of the then Bishorpic of Servia and Kozani. Kozani is supposed to be formed into a community during the 14th century, when the Ottomans have taken the whole area of (today's) West Macedonia in North Greece. Kozani was not inhabited by the Ottomans and during the 18th-19th century expanded into an important commercial, handicraft and intellectual centre of a wider area. The personal servitudes, which were traced, are the usufruct and the right of free residence. The real servitudes have to do with the support of a building on to a neighboring building, the allowance of passing through a neighboring land, the allowance of opening up a window on a party wall, the incapacitation of hampering the natural lighting, the allowance of drawing water form a neighboring well, and the flow out the rain. The settlement and practice of servitudes were based on the provisions of "Exavivlos" of Armenopoulos (2.10.4-14, 2.4.1-138)
Semi supervised segmentation and graph-based tracking of 3D nuclei in time-lapse microscopy
Creators: name: Shailja, S.
name: Jiang, Jiaxiang
name: Manjunath, B. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We propose a novel weakly supervised method to improve the boundary of the 3D segmented nuclei utilizing an over-segmented image. This is motivated by the observation that current state-of-the-art deep learning methods do not result in accurate boundaries when the training data is weakly annotated. Towards this, a 3D U-Net is trained to get the centroid of the nuclei and integrated with a simple linear iterative clustering (SLIC) supervoxel algorithm that provides better adherence to cluster boundaries. To track these segmented nuclei, our algorithm utilizes the relative nuclei location depicting the processes of nuclei division and apoptosis. The proposed algorithmic pipeline achieves better segmentation performance compared to the state-of-the-art method in Cell Tracking Challenge (CTC) 2019 and comparable performance to state-of-the-art methods in IEEE ISBI CTC2020 while utilizing very few pixel-wise annotated data. Detailed experimental results are provided, and the source code is available on GitHub.
description: To be submitted to ISBI 2021
Iterated Differential Forms III: Integral Calculus
Creators: name: Vinogradov, A. M.
name: Vitagliano, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 58A10, 58A50, 13N99

description: Basic elements of integral calculus over algebras of iterated differential forms, are presented. In particular, defining complexes for modules of integral forms are described and the corresponding berezinians and complexes of integral forms are computed. Various applications and the integral calculus over the algebra $Λ_{\infty}$ will be discussed in subsequent notes.
description: 7 pages, submitted to Math. Dokl
On Statistical Efficiency in Learning
Creators: name: Ding, Jie
name: Diao, Enmao
name: Zhou, Jiawei
name: Tarokh, Vahid
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistics Theory (math.ST)
subject: Information Theory (cs.IT)
subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: A central issue of many statistical learning problems is to select an appropriate model from a set of candidate models. Large models tend to inflate the variance (or overfitting), while small models tend to cause biases (or underfitting) for a given fixed dataset. In this work, we address the critical challenge of model selection to strike a balance between model fitting and model complexity, thus gaining reliable predictive power. We consider the task of approaching the theoretical limit of statistical learning, meaning that the selected model has the predictive performance that is as good as the best possible model given a class of potentially misspecified candidate models. We propose a generalized notion of Takeuchi's information criterion and prove that the proposed method can asymptotically achieve the optimal out-sample prediction loss under reasonable assumptions. It is the first proof of the asymptotic property of Takeuchi's information criterion to our best knowledge. Our proof applies to a wide variety of nonlinear models, loss functions, and high dimensionality (in the sense that the models' complexity can grow with sample size). The proposed method can be used as a computationally efficient surrogate for leave-one-out cross-validation. Moreover, for modeling streaming data, we propose an online algorithm that sequentially expands the model complexity to enhance selection stability and reduce computation cost. Experimental studies show that the proposed method has desirable predictive power and significantly less computational cost than some popular methods.
description: to be published by the IEEE Transactions on Information Theory
The Lexicographic First Occurrence of a I-II-III pattern
Creators: name: Burton, Torey
name: Godbole, Anant P.
name: Kindle, Brett M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 60C05

description: Consider a random permutation $π\in{\cal S}_n$. In this paper, perhaps best classified as a contribution to discrete probability distribution theory, we study the {\it first} occurrence $X=X_n$ of a I-II-III-pattern, where "first" is interpreted in the lexicographic order induced by the 3-subsets of $[n]=\{1,2,...,n\}$. Of course if the permutation is I-II-III-avoiding then the first I-II-III-pattern never occurs, and thus $\e(X)=\infty$ for each $n$; to avoid this case, we also study the first occurrence of a I-II-III-pattern given a bijection $f:{\bf Z}^+\to{\bf Z}^+$.
Resource allocation pattern in infrastructure networks
Creators: name: Kim, Dong-Hee
name: Motter, Adilson E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Most infrastructure networks evolve and operate in a decentralized fashion, which may adversely impact the allocation of resources across the system. Here we investigate this question by focusing on the relation between capacity and load in various such networks. We find that, due to network traffic fluctuations, real systems tend to have larger unoccupied portions of the capacities--smaller load-to-capacity ratios--on network elements with smaller capacities, which contrasts with key assumptions involved in previous studies. This finding suggests that infrastructure networks have evolved to minimize local failures but not necessarily large-scale failures that can be caused by the cascading spread of local damage.
Very High Energy Emission and Cascade Radiation of Gamma-Ray Burst Afterglows: Homogeneous Versus Wind External Media
Creators: name: Huang, Xiao-Li
name: Wang, Ze-Rui
name: Liu, Ruo-Yu
name: Wang, Xiang-Yu
name: Liang, En-Wei
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Recent detection of sub-TeV emission from gamma-ray bursts (GRBs) represents a breakthrough in the GRB study. The multi-wavelength data of the afterglows of GRB 190114C support the synchrotron self-Compton (SSC) origin for its sub-TeV emission. We present a comparative analysis on the SSC emission of GRB afterglows in the homogeneous and wind environment in the framework of the forward shock model. The $γγ$ absorption of very high-energy photons due to pair production within the source and the Klein-Nishina effect on the inverse-Compton scattering are considered. Generally a higher SSC flux is expected for a larger circum-burst density due to a larger Compton parameter, but meanwhile the internal $γγ$ absorption is more severer for sub-TeV emission. The flux ratio between the SSC component and the synchrotron component decreases more quickly with time in the wind medium case than that in the homogenous-density medium case. The light curves of the SSC emission are also different for the two types of media. We also calculate the cascade emission resulted from the absorbed high-energy photons. In the ISM environment with $n> 1\,\rm cm^{-3}$, the cascade synchrotron emission could be comparable to the synchrotron emission of the primary electrons in the optical band, which may flatten the optical afterglow light curve at early time ($t<1$ h). In the wind medium with $A_{\ast}> 0.1$, the cascade emission in the eV-GeV band is comparable or even larger than the emission of the primary electrons at early time.
description: 9 pages, 6 figures, accepted for publication in ApJ
Evaluating the Impact of Scaffolding and Visualizations for Mutation Testing Exercises in Software Engineering Education
Creators: name: Potter, Hannah
name: Paiva, Ana C. R.
name: Amalfitano, Domenico
name: Fasolino, Anna Rita
name: Tramontana, Porfirio
name: Just, Rene
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 461202
subject: Empirical software engineering

description: This artifact contains the following materials from the studies presented in the FSE - SEET '25 paper "Evaluating the Impact of Scaffolding and Visualizations for Mutation Testing Exercises in Software Engineering Education":experimental_setup gives the experimental setup materials (e.g., assignment instructions, starter code)consolidated_dataset gives the consolidated data for the quantitative analysesanalysis_scripts gives the scripts used to generate the figures
Probabilistic cloning with supplementary information contained in the quantum states of two auxiliary systems
Creators: name: Li, Lvjun
name: Qiu, Daowen
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In probabilistic cloning with two auxiliary systems, we consider and compare three different protocols for the success probabilities of cloning. We show that, in certain circumstances, it may increase the success probability to add an auxiliary system to the probabilistic cloning machine having one auxiliary system, but we always can find another cloning machine with one auxiliary system having the same success probability as that with two auxiliary systems.
description: 18 pages
Unidirectional Quantum Transport in Optically Driven $V$-type Quantum Dot Chains
Creators: name: Kaestle, Oliver
name: Denning, Emil Vosmar
name: Mørk, Jesper
name: Knorr, Andreas
name: Carmele, Alexander
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We predict a mechanism for achieving complete population inversion in a continuously driven InAs/GaAs semiconductor quantum dot featuring $V$-type transitions. This highly nonequilibrium steady state is enabled by the interplay between $V$-type interband transitions and a non-Markovian decoherence mechanism, introduced by acoustic phonons. The population trapping mechanism is generalized to a chain of coupled emitters. Exploiting the population inversion, we predict unidirectional excitation transport from one end of the chain to the other without external bias, independent of the unitary interdot coupling mechanism.
Η διακύμανση της στάθμης και η ποιότητα των νερών των υδροφόρων στρωμάτων της περιοχής Τυρνάβου (Ν. Λάρισας)
Creators: name: Καραμουχτάρη, Ανθή Αλέξανδρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Διακύμανση
Τύρναβος
Λάρισα
Fluctuation
Tyrnavos
Larisa

description: Η εργασία αποτελείται από 6 κεφάλαια. Στο πρώτο κεφάλαιο δίνονται τα γεωγραφικά και γεωμορφολογικά στοιχεία της περιοχής. Στο δεύτερο κεφάλαιο δίνονται τα γεωολογικά στοιχεία της περιοχής. Στον τρίτο τα κλιματολογικά και υδρογεωλογικά στοιχεία. Το πέμπτο αναφέρεται στα πιεζομετρικά στοιχεία τα οποία αναλύουμε. Το έκτο κεφάλαιο αναφέρεται στην ποιότητα των υπογείων νερών. Τέλος δίνονται τα συμπεράσματα
description: The project consists of six chapters. The first chapter involves with geografical and geomorfological data. The second involves with geological data of the area. In the third chapter we develop the klimatological and hydrogeological data. In the fifth chapter we develop and analyse the piezometric data. The last sixth chapter involves with the quality of the underground water of the area. Finally, we develop the conclusions
Nature of the f_0(600) from its N_c dependence at two loops in unitarized Chiral Perturbation Theory
Creators: name: Pelaez, J. R.
name: Rios, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: By using unitarized two-loop Chiral Perturbation Theory partial waves to describe pion-pion scattering we find that the dominant component of the lightest scalar meson does not follow the q-qbar dependence on the number of colors that, in contrast, is obeyed by the lightest vectors. The method suggests that a subdominant q-qbar component of the f_0(600) possibly originates around 1 GeV.
description: 4 pages, 1 Figure. To appear in Phys. Rev. Lett
基于不同参数下的炉温曲线的研究
Creators: name: 方一舟
name: 陈伯硕
name: 陈剑华
Publisher: name: Zenodo
Year: 2020

description: 202全国大学生数学竞赛作品,最终获得陕西省二等奖
description: 202全国大学生数学竞赛作品,最终获得陕西省二等奖
Ποιοτικός έλεγχος υλικών στην οδοποιΐα
Creators: name: Τρεμοπούλου, Ελισσάβετ Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Χωματουργικά έργα οδοποιΐας
Εργα οδοστρωσίας
Επίχωμα
Βάση
Υπόβαση
Αδρανή
Earth works
Road construction
Bank
Base
Sub-base
Inactive materials

description: Στη διατριβή αυτή παρουσιάζονται όλα τα χωματουργικά υλικά, που χρησιμοποιούνται σήμερα στην κατασκευή μεγάλων οδικών έργων. Παρουσιάζονται τα αδρανή και τα εδαφικά υλικά που χρησιμοποιούνται στα επί μέρους τμήματα μιας οδού, ενώ επίσης παρουσιάζονται οι σημαντικότερες δοκιμές που εκτελούνται σε αυτά τόσο κατά την κατάταξή τους όσο και για τον ποιοτικό έλεγχο του έργου. Επίσης γίνεται ανάλυση και αξιολόγηση όλων των διαθέσιμων δεδομένων των χωματουργικών υλικών και των υλικών οδοστρωσίας που χρησιμοποιήθηκαν για την κατασκευή του τμήματος 5.2-5.3 της Εγνατίας οδού και εξάγονται συμπεράσματα
description: In this project earthwork and road construction materials that are participating in the construction of modern roads are presented the most significant tests that are executed for the classificatio and the quality control of inactive and soil material. It is also presented the analysis and the valuation off all the disposal data of materials that were used for the construction of the sections 5.2-5.3 of Egnatia odos, and conclusion are conducted
Fast Bayesian Deconvolution using Simple Reversible Jump Moves
Creators: name: Okajima, Koki
name: Nagata, Kenji
name: Okada, Masato
Publisher: name: arXiv
Year: 2020
Subjects: subject: Methodology (stat.ME)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: 62P35

description: We propose a Markov chain Monte Carlo-based deconvolution method designed to estimate the number of peaks in spectral data, along with the optimal parameters of each radial basis function. Assuming cases where the number of peaks is unknown, and a sweep simulation on all candidate models is computationally unrealistic, the proposed method efficiently searches over the probable candidates via trans-dimensional moves assisted by annealing effects from replica exchange Monte Carlo moves. Through simulation using synthetic data, the proposed method demonstrates its advantages over conventional sweep simulations, particularly in model selection problems. Application to a set of olivine reflectance spectral data with varying forsterite and fayalite mixture ratios reproduced results obtained from previous mineralogical research, indicating that our method is applicable to deconvolution on real data sets.
description: 11 pages, 9 figures
Development of Turning Templates for Various Design Vehicles
Creators: name: Agent, Kenneth R.
name: Pigman, Jerry G.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1991
Subjects: subject: Transportation Engineering

description: The objective of this study was to develop the data necessary to produce the turning templates that would represent the minimum turning paths for critical design vehicles. This would include information concerning truck turning radii and offtracking for larger trucks with varying wheelbases operating in Kentucky. In order for the turning templates used for the various design vehicles to be based on the same procedure, data were produced tor design vehicles ranging from a passenger car to a combination truck with a 53 foot trailer. The simulation model used was the Truck Offtracking Model (TOM) and was developed by the California Department of Transportation.  The data obtained from the truck offtracking simulation program show that it can be used to develop turning templates that agree with those developed by AASHTO. The plotting information generated from this study can be used to prepare turning templates that can be used in the design process.
Ζητήματα έκδοσης διαταγής πληρωμής για το κατάλοιπο αλληλόχρεου λογαριασμού
Creators: name: Κοκκόλη, Κωνσταντίνα Μιχαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Διαταγή πληρωμής
Αλληλόχρεος λογαριασμός
Ανατοκισμός
Payment order
Debit and credit account
Surcharge interest

description: Ο αλληλόχρεος λογαριασμός είναι μια παρεπόμενη σύμβαση που τηρείται μεταξύ δύο μερών, το ένα από τα οποία πρέπει να είναι έμπορος. Είναι δυνατή η έκδοση διαταγής πληρωμής για το οριστικό κατάλοιπο που προκύπτει από το κλείσιμο του λογαριασμού. Οι προϋποθέσεις έκδοσης είναι αυτές που περιγράφονται στα άρθρα 623 και 624 ΚπολΔ. Τα εμπορικά βιβλία θεωρούνται ιδιωτικά έγγραφα και ως εκ τούτου μπορούν να στηρίξουν την έκδοση διαταγής πληρωμής. Είναι δυνατή η έκδοση και με βάση το απόσπασμα από αυτά, εφόσον υπάρχει σχετική συμφωνία. Αν έχει γίνει αναγνώριση του καταλοίπου δεν χρειάζεται να προσκομισθούν αναλυτικές κινήσεις του λογαριασμού.
description: The debit and credit account is kept between two parts one of which has to be a trader. A payment order can be issued when someone has a demand deriving from the closing of a credit and debit account. The conditions of the issue are moreover those described in articles 623, of the Greek Civil Procedure Code. The books kept by a trader are regarded as private documents which can lead to the issue of a payment order. The debtor can file for a suspension against the payment order
Top quark chromomagnetic dipole moment in the littlest Higgs model with T-parity
Creators: name: Ding, Li
name: Yue, Chong-Xing
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The littlest Higgs model with T-parity, which is called $LHT$ model, predicts the existence of the new particles, such as heavy top quark, heavy gauge bosons, and mirror fermions. We calculate the one-loop contributions of these new particles to the top quark chromomagnetic dipole moment $(CMDM)$ $ΔK$. We find that the contribution of the $LHT$ model is one order of magnitude smaller than the standard model prediction value.
description: latex files, 12 pages, 3 figures
Focused Ion Beam fabrication of Janus bimetallic cylinders acting as drift~tube Zernike phase plates
Creators: name: Rosi, Paolo
name: Gazzadi, Gian Carlo
name: Frabboni, Stefano
name: Grillo, Vincenzo
name: Tavabi, Amir H.
name: Dunin-Borkowski, Rafal E.
name: Pozzi, Giulio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Modern nanotechnology techniques offer new opportunities for fabricating structures and devices at the micron and sub-micron level. Here, we use focused ion beam techniques to realize drift tube Zernike phase plates for electrons, whose operation is based on the presence of contact potentials in Janus bimetallic cylinders, in a similar manner to the electrostatic Aharonov-Bohm effect in bimetallic wires. We use electron Fraunhofer interference to demonstrate that such bimetallic pillar structures introduce phase shifts that can be tuned to desired values by varying their dimensions, in particular their heights.
description: 7 pages, 4 figures, preprint
Topological basis of signal integration in the transcriptional-regulatory network of the yeast, Saccharomyces cerevisiae
Creators: name: Farkas, Illes J.
name: Wu, Chuang
name: Chennubhotla, Chakra
name: Bahar, Ivet
name: Oltvai, Zoltan N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: BACKGROUND. Signal recognition and information processing is a fundamental cellular function, which in part involves comprehensive transcriptional regulatory (TR) mechanisms carried out in response to complex environmental signals in the context of the cell's own internal state. However, the network topological basis of developing such integrated responses remains poorly understood. RESULTS. By studying the TR network of the yeast Saccharomyces cerevisiae we show that an intermediate layer of transcription factors naturally segregates into distinct subnetworks. In these topological units transcription factors are densely interlinked in a largely hierarchical manner and respond to external signals by utilizing a fraction of these subnets. CONCLUSIONS. As transcriptional regulation represents the "slow" component of overall information processing, the identified topology suggests a model in which successive waves of transcriptional regulation originating from distinct fractions of the TR network control robust integrated responses to complex stimuli.
description: Color figures, supplement and free full text article available at http://www.biomedcentral.com/1471-2105/7/478/abstract