cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Σχεδιασμός μετάδοσης κίνησης δίτροχου ενσωματωμένη στους βραχίονες των πίσω τροχών
title: Design of final motorbike transmission embedded in the rear wheel swing arm
titleType: AlternativeTitle
Creators: name: Αναστασόπουλος, Δημήτριος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: Πλανητικός μηχανισμός
Οδοντωτοί τροχοί
Πίσω βραχίονας μοτοσυκλέτας

description: Σκοπός αυτής της Διπλωματικής Εργασίας είναι ο σχεδιασμός της τελικής μετάδοσης δίτροχου ενσωματωμένη στους βραχίονες των πίσω τροχών. Η ιδέα αυτή προήρθε κυρίως από μοτοσυκλέτες εκτός δρόμου στις οποίες η τελική μετάδοση με αλυσίδα είναι εκτεθειμένη και έρχεται σε επαφή με χώματα λάσπες πέτρες και ως συνέπεια προκαλείται φθορά ή και καταστροφή της. Για το σκοπό αυτό αναπτύχθηκε μια πρότυπη ιδέα και ένα αρχικός σχεδιασμός για το πως θα μπορούσε να δημιουργηθεί ένα τέτοιο σύστημα σε μοτοσυκλέτες εκτός δρόμου ώστε όλη η μετάδοση της κίνησης και η μείωση της σχέσης μετάδοσης να είναι κλειστή και προστατευμένη από τέτοιου είδους φθορές. Αρχικά έγινε υπολογισμός τέτοιος ώστε η μείωση της σχέσης μετάδοσης που γίνεται με την αλυσίδα να γίνει με έναν εναλλακτικό τρόπο έπειτα έγινε σχεδιασμός ενός προτύπου 3d μοντέλου για όλο το τελικό μοντέλο τόσο του μειωτήρα όσο και του πίσω βραχίονα . Τέλος έγινε στατική ανάλυση του πίσω βραχίονα σε αντοχή κάμψης καθώς και πρόταση για επιπλέων ενσωμάτωση του πίσω φρένου στον όλο μηχανισμό.
MPEC 2025-C57 : 2025 CP1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 CP1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Fermi LAT and WMAP observations of the supernova remnant HB 21
Creators: name: Pivato, G.
name: Hewitt, J.
name: Tibaldo, L.
name: Acero, F.
name: Ballet, J.
name: Brandt, T. J.
name: de Palma, F.
name: Giordano, F.
name: Janssen, G. H.
name: Johannesson, G.
name: Smith, D. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the analysis of Fermi Large Area Telescope (LAT) $γ$-ray observations of HB~21 (G89.0+4.7). We detect significant $γ$-ray emission associated with the remnant: the flux >100 MeV is $9.4\pm0.8(stat)\pm1.6(syst)\times10^{-11}$ erg cm$^{-2}$ s$^{-1}$. HB 21 is well modeled by a uniform disk centered at $l= 88°.75\pm 0°.04$, $b = +4°.65 \pm 0°.06$ with a radius of $1°.19 \pm 0°.06$. The $γ$-ray spectrum shows clear evidence of curvature, suggesting a cutoff or break in the underlying particle population at an energy of a few GeV. We complement $γ$-ray observations with the analysis of the WMAP 7-year data from 23 to 93 GHz, achieving the first detection of HB 21 at these frequencies. In combination with archival radio data, the radio spectrum shows a spectral break which helps to constrain the relativistic electron spectrum, hence parameters of simple non-thermal radiation models. In one-zone models multiwavelength data favor the origin of $γ$ rays from nucleon-nucleon collisions. A single population of electrons cannot produce both $γ$ rays through bremsstrahlung and radio emission through synchrotron radiation. A predominantly inverse-Compton origin of the $γ$-ray emission is disfavored because it requires lower interstellar densities than are inferred for HB 21. In the hadronic-dominated scenarios accelerated nuclei contribute a total energy of $\sim 3 \times10^{49}$ ergs, while in a two-zone bremsstrahlung-dominated scenario the total energy in accelerated particles is $\sim1\times10^{49}$ ergs.
description: 45 pages, 7 figures
'Magic and Medicine: the Power of Seals', in Chr. Entwistle, N. Adams (eds), 'Gems of Heaven'. Recent Research on Engraved Gemstones in Late Antiquity c. AD 200-600, London, 2011, 69-74.
Creators: name: Dasen Véronique
Publisher: name: Zenodo
Year: 2011
Subjects: magic
medicine
glyptic

description: Material evidence of the relationship between ancient magic and medicine is manifold. A number of recent studies have explored the fluidity of the boundaries between medical, religious, and magical therapies in Classical antiquity, but the implications of this interplay have yet to be fully investigated. In this paper, I would like to pursue reflections on these interactions. I will more specifically focus on the notion of sphragis (seal), common to both practices, and explore the double meaning of the word which casts light on an important aspect of the cultural context of magical gems and could elucidate one of their operating modes.
A stochastic control approach to no-arbitrage bounds given marginals, with an application to lookback options
Creators: name: Galichon, A.
name: Henry-Labordère, P.
name: Touzi, N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: Pricing of Securities (q-fin.PR)
subject: FOS: Mathematics
subject: FOS: Economics and business

description: We consider the problem of superhedging under volatility uncertainty for an investor allowed to dynamically trade the underlying asset, and statically trade European call options for all possible strikes with some given maturity. This problem is classically approached by means of the Skorohod Embedding Problem (SEP). Instead, we provide a dual formulation which converts the superhedging problem into a continuous martingale optimal transportation problem. We then show that this formulation allows us to recover previously known results about lookback options. In particular, our methodology induces a new proof of the optimality of Azéma-Yor solution of the SEP for a certain class of lookback options. Unlike the SEP technique, our approach applies to a large class of exotics and is suitable for numerical approximation techniques.
description: Published in at http://dx.doi.org/10.1214/13-AAP925 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
title: Ψηφιακό μάρκετινγκ : συγκριτική ανάλυση του SEO και του PPC μάρκετινγκ
title: Digital marketing : a comparative analysis of SEO and PPC marketing
titleType: AlternativeTitle
Creators: name: Χαζάπη, Ναταλία
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2023
Subjects: subject: SEO μάρκετινγκ
subject: PPC μάρκετινγκ
subject: Digital marketing
subject: Conversions
subject: Ψηφιακό μάρκετινγκ

description: Τα τελευταία χρόνια, η πρόοδος της τεχνολογίας απαιτεί από τις επιχειρήσεις να αναπτύσσουν δεξιότητες ψηφιακού μάρκετινγκ για την εδραίωσή τους στην αγορά. Οι επιχειρήσεις προσπαθούν διαρκώς να βελτιώνουν τις στρατηγικές προβολής τους στις ψηφιακές πλατφόρμες, ώστε να καταφέρουν να αποκτήσουν περισσότερους πελάτες, μεγαλύτερη προβολή της επωνυμίας τους και περισσότερα κέρδη από τις εμπορικές τους δραστηριότητες. Στην παρούσα μελέτη επιχειρείται η σύγκριση μεταξύ των δύο βασικότερων στρατηγικών του ψηφιακού μάρκετινγκ, το SEO – βελτιστοποίηση για τις μηχανές αναζήτησης – και το PPC μάρκετινγκ, δηλαδή το μάρκετινγκ μέσω πληρωμένων διαφημίσεων. Οι δύο αυτές στρατηγικές αποτελούν δύο βασικούς πυλώνες για το ψηφιακό μάρκετινγκ και, μέσα από την ανάλυση του καθενός, αναδεικνύονται τα πλεονεκτήματα, τα μειονεκτήματα και η δυναμική που καθένας από τους δύο έχει για μία επιχείρηση που προβάλλεται στο διαδίκτυο. Στη μελέτη αυτή καταγράφονται οι τρόποι μέτρησης του SEO και του PPC μάρκετινγκ και στη συνέχεια, μέσα από το παράδειγμα μίας νέας επιχείρησης που δραστηριοποιείται στο ηλεκτρονικό εμπόριο, επιχειρείται μία αξιολόγηση του αντικτύπου της κάθε μεθόδου στην επισκεψιμότητα του ιστοτόπου, στα ποσοστά μετατροπών και στην απόδοση της επένδυσης (ROI). Αναδεικνύεται, τελικά, η σημασία της κάθε μίας στρατηγικής μέσα από τις διαφορετικές της λειτουργίες, αλλά και τα αποτελέσματα που έχει ο συνδυασμός των δύο μεθόδων για τη διαμόρφωση μίας ενιαίας και αποτελεσματικής στρατηγικής ψηφιακού μάρκετινγκ.
Rottenburger Jahrbuch für Kirchengeschichte, Band 1, Inhaltsverzeichnis
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 1 (1982): Rottenburger Jahrbuch für Kirchengeschichte, Band 1
Methodology report n.docx
Creators: name: Jayshiv Limbasia
Publisher: name: figshare
Year: 2020
Subjects: subject: 80602 Computer-Human Interaction
subject: FOS: Psychology
subject: 100503 Computer Communications Networks
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: A brain Computer interface (BCI) has the potential to permit such persons to realize substantive perform, communication, and independence
Exact solution of the $q$-deformed $D^{(1)}_3$ vertex model with open boundaries
Creators: name: Li, Guang-Liang
name: Cao, Junpeng
name: Qiao, Yi
name: Yang, Wen-Li
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper, we study the exact solution of the $q$-deformed $D^{(1)}_3$ quantum lattice model with non-diagonal open boundary condition. We demonstrate the crossing symmetry of the transfer matrix and obtain the quantum determinant. We construct the independent transfer matrix fusion identities and show that the fusion processes can be closed. Based on the fusion hierarchies and polynomial analysis, we obtain the inhomogeneous $T-Q$ relations, exact energy spectrum and Bethe ansatz equations of the system.
description: 10 pages, 0 figures
title: Στρατηγικές μάρκετινγκ για το ηλεκτρονικό εμπόριο των second hand ρούχων : η περίπτωση του Revibes
title: Marketing strategies in the second-hand clothing e-commerce : the case of Revibes
titleType: AlternativeTitle
Creators: name: Κόντε, Παναγιώτα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2023
Subjects: subject: Μόδα
subject: Βιωσιμότητα
subject: Second hand
subject: Vintage
subject: Fashion
subject: Sustainability

description: Στην παρούσα εργασία, γίνεται η παρουσίαση ενός ολοκληρωμένου σχεδίου μάρκετινγκ για την εφαρμογή Revibes, μία εφαρμογή που δραστηριοποιείται στην αγορά των second hand ειδών μόδας. Στο πλαίσιο αυτό, γίνεται μια λεπτομερής ανάλυση της αγοράς και του ανταγωνισμού έτσι ώστε να καταγράφουν στη συνέχεια τα σημεία στα οποία μπορεί η εφαρμογή μας να διαφοροποιηθεί. Πραγματοποιείται τμηματοποίηση της αγοράς και προσδιορισμός της αγοράς-στόχου, εστιάζοντας σε δημογραφικές, γεωγραφικές, ψυχογραφικές και συμπεριφορικές διαστάσεις. Επίσης, δημιουργούνται λεπτομερείς περσόνες αγοραστών, καθεμία από τις οποίες παρουσιάζει μοναδικές ανάγκες. Η στρατηγική μάρκετινγκ αναπτύχθηκε σύμφωνα με το πλαίσιο SMART, δημιουργώντας συγκεκριμένους, μετρήσιμους, εφικτούς, σχετικούς και χρονικά προσδιορισμένους στόχους. Επίσης, διεξήχθη μια εκτενής ανάλυση του μείγματος μάρκετινγκ. Ένα βασικό μέρος της στρατηγικής μάρκετινγκ συμπεριέλαβε τις τακτικές διαδικτυακού μάρκετινγκ, που συμπεριλαμβάνουν τις στρατηγικές βελτιστοποίησης των μηχανών αναζήτησης (SEO), το μάρκετινγκ περιεχομένου, το social media social media μάρκετινγκ και το e-mail μάρκετινγκ. Κάθε μία από αυτές τις στρατηγικές σχεδιάστηκε για να βελτιστοποιήσει την εμπειρία των χρηστών, την αφοσίωσή τους και τα ποσοστά μετατροπών στην πλατφόρμα. Η εργασία ολοκληρώνεται με το σχέδιο υλοποίησης, παρέχοντας ένα λεπτομερές χρονοδιάγραμμα και προγραμματισμό για την κατανομή των πόρων. Τέλος, για την παρακολούθηση και τη μέτρηση της επιτυχίας των στρατηγικών μάρκετινγκ, καθορίζονται οι βασικοί δείκτες απόδοσης (KPI).
Computer-Generated Holographic Gratings in Soft Matter
Creators: name: Zito, Gianluigi
name: Marino, Antigone
name: Piccirillo, Bruno
name: Tkachenko, Volodymyr
name: Santamato, Enrico
name: Abbate, Giancarlo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Standard multiple-beam holography has been largely used to produce gratings in polymer-liquid crystal composites, like POLICRYPS, H-PDLC gratings and POLIPHEM [1]. In this work we present a different approach to liquid crystalpolymeric grating production, based on the Computer-Generated Holography (CGH). The great advantage of using CGH is that interferometer-based schemes are no longer necessary, avoiding problems related to long term stability of the interference pattern and multi-beam complex optical setup. Moreover, the CGH technique allows a wider choice of pattern designs. In this preliminary work, we obtained promising results, as for instance the patterning of a square-wave refractive index modulation of a LCpolymeric composite, a pattern which is not achievable with standard two-beam holography.
description: 6 pages, 3 figures
Στρατηγικό μάνατζμεντ ανθρώπινου παράγοντα : μελέτη περίπτωσης
Creators: name: Σταυριανίδη, Ιωάννα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2023
Subjects: subject: Στρατηγικό μάνατζμεντ
subject: Ανθρώπινος παράγοντας
subject: Strategic management
subject: Human resources

description: Η παρούσα διπλωματική εργασία εξετάζει την έννοια του Στρατηγικού Μάνατζμεντ Ανθρωπίνων Πόρων, και τη σημασία της στις σύγχρονες επιχειρήσεις. Μελετάται η εξέλιξη της διοίκησης ανθρώπινου παράγοντα στην στρατηγική της μορφή. Αναφέρονται οι τρόποι εναρμόνισής της με την στρατηγική των επιχειρήσεων, αλλά και η διαδικασία ανάπτυξης του Στρατηγικού Μάνατζμεντ ανθρώπινου παράγοντα. Περιγράφονται οι διαφορετικές προσεγγίσεις Στρατηγικού Μάνατζμεντ Ανθρωπίνων Πόρων που αναπτύχθηκαν ανά τα χρόνια, τόσο σε θεωρητικό όσο και σε πρακτικό επίπεδο. Σε συνέχεια της θεωρητικής διερεύνησης του Στρατηγικού Ανθρωπίνων Πόρων, εξετάζεται η μελέτη περίπτωσης πολυεθνικής επιχείρησης κατασκευής και εμπορίας ιατρικών συσκευών. Περιγράφεται η γενική εικόνα της επιχείρησης, ενώ αναφέρονται στοιχεία που οδηγούν στην ανίχνευση των στρατηγικών της. Παρουσιάζεται η Επιχειρηματική, η Επιχειρησιακή, η Λειτουργική Στρατηγική και το Στρατηγικό Μάνατζμεντ Ανθρωπίνων Πόρων, αλλά και οι πρακτικές Ανθρώπινου Παράγοντα που χρησιμοποιεί ο οργανισμός.
Local Structural Evidence for Strong Electronic Correlations in LiRh$_2$O$_4$ Spinel
Creators: name: Knox, K. R.
name: Abeykoon, A. M. M.
name: Zheng, H.
name: Yin, W. -G.
name: Tsvelik, A. M.
name: Mitchell, J. F.
name: Billinge, S. J. L.
name: Bozin, E. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The local structure of the spinel LiRh$_2$O$_4$ has been studied using atomic pair distribution function (PDF) analysis of powder x-ray diffraction data. This measurement is sensitive to the presence of short Rh-Rh bonds that form due to dimerization of Rh$^{4+}$ ions on the pyrochlore sublattice, independent of the existence of long range order. We show that structural dimers exist in the low-temperature phase, as previously supposed, with a bond shortening of $Δr \sim 0.15$ Å. The dimers persist up to 350 K, well above the insulator-metal transition, with $Δr$ decreasing in magnitude on warming. Such behavior is inconsistent with the Fermi surface nesting-driven Peierls transition model. Instead, we argue that LiRh$_2$O$_4$ should properly be described as a strongly correlated system.
Astrometric detection of exoplanets from the ground
Creators: name: Sahlmann, J.
name: Lazorenko, P. F.
name: Mérand, A.
name: Queloz, D.
name: Ségransan, D.
name: Woillez, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Astrometry is a powerful technique to study the populations of extrasolar planets around nearby stars. It gives access to a unique parameter space and is therefore required for obtaining a comprehensive picture of the properties, abundances, and architectures of exoplanetary systems. In this review, we discuss the scientific potential, present the available techniques and instruments, and highlight a few results of astrometric planet searches, with an emphasis on observations from the ground. In particular, we discuss astrometric observations with the Very Large Telescope (VLT) Interferometer and a programme employing optical imaging with a VLT camera, both aimed at the astrometric detection of exoplanets. Finally, we set these efforts into the context of Gaia, ESA's astrometry mission scheduled for launch in 2013, and present an outlook on the future of astrometric exoplanet detection from the ground.
description: 9 pages, 3 figures. Invited contribution to the SPIE conference "Techniques and Instrumentation for Detection of Exoplanets VI" held in San Diego, CA, August 25-29, 2013
Πράσινη μετάβαση, μέσω της πράσινης επιχειρηματικότητας
Creators: name: Χασαπλαδάκης, Γεώργιος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2023
Subjects: subject: Πράσινη μετάβαση
subject: Πράσινη επιχειρηματικότητα
subject: Καινοτομία
subject: Εξοικονόμηση
subject: Κυκλική οικονομία
subject: Παγκόσμιο οικολογικό αποτύπωμα
subject: Ευρωπαϊκή Ένωση
subject: Πράσινοι δείκτες
subject: Διαχείριση πόρων
subject: Εξωτερικότητες
subject: Εσωτερίκευση
subject: Νέο επιχειρηματικό μοντέλο
subject: Βιώσιμη ανάπτυξη
subject: Αειφόρος ανάπτυξη

description: Σκοπός αυτής της εργασίας είναι να διερευνήσει τον τρόπο με τον οποίο υλοποιείται η πράσινη μετάβαση, τόσο σε εθνικό επίπεδο, όσο και σε επίπεδο Ευρωπαϊκής Ένωσης, μέσω της πράσινης επιχειρηματικότητας και της κατάλληλης εκμετάλλευσής της. Η ολοένα και μεγαλύτερη αύξηση των αναγκών των ανθρώπων στην καθημερινότητά τους, δημιουργεί ολοένα και μεγαλύτερη ζήτηση πόρων, τη στιγμή που οι διαθέσιμοι, αυτοί, πόροι μειώνονται. Για τον λόγο αυτό, τα τελευταία χρόνια έχει δημιουργηθεί ένα θεσμικό πλαίσιο βιωσιμότητας και πράσινης μετάβασης, με συγκεκριμένο χρονοδιάγραμμα υλοποίησης σε πανευρωπαϊκό και επομένως εθνικό επίπεδο. Έτσι, στο πλαίσιο αυτό, οι επιχειρήσεις, και όχι μόνο, καλούνται να εστιάσουν στην αναγνώριση και κατανόηση των αντίστοιχων κινδύνων και ευκαιριών της κλιματικής αλλαγής και των νέων δεδομένων. Αυτό, στοχεύει στην κατάλληλη διαχείριση, αλλά και στην αναπροσαρμογή του επιχειρηματικού μοντέλου, βάσει των νέων συνθηκών, κάτι που βασίζεται στην ενσωμάτωση της βιώσιμης ανάπτυξης στις εταιρικές στρατηγικές, δημιουργώντας μακροπρόθεσμη αξία, μέσω του συνυπολογισμού οικονομίας, κοινωνίας και φυσικού περιβάλλοντος.
THE ROLE OF PROGRAMMING LANGUAGES IN MATHEMATICAL MODELING
Creators: name: G'aniyev, Temur
Publisher: name: Zenodo
Year: 2024

description: Mathematical modeling is an essential practice in various scientific and engineering disciplines, facilitating the representation and analysis of complex systems. The choice of programming language significantly influences the modeling process, affecting development speed, execution efficiency, and ease of interpretation. This article examines the impact of different programming languages on mathematical modeling, assessing their advantages and limitations. A literature review contextualizes current trends, while case studies illustrate practical applications in diverse fields. Results indicate that high-level languages like Python and R enhance accessibility and productivity, whereas languages such as C++ provide superior performance for large-scale simulations. The findings underscore the critical importance of language selection in mathematical modeling.
Eigenvalue order statistics for random Schrödinger operators with doubly-exponential tails
Creators: name: Biskup, Marek
name: Koenig, Wolfgang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60H25, 82B44, 82C44, 60J80

description: We consider random Schrödinger operators of the form $Δ+ξ$, where $Δ$ is the lattice Laplacian on $\mathbb Z^d$ and $ξ$ is an i.i.d. random field, and study the extreme order statistics of the eigenvalues for this operator restricted to large but finite subsets of $\mathbb Z^d$. We show that for $ξ$ with a doubly-exponential type of upper tail, the upper extreme order statistics of the eigenvalues falls into the Gumbel max-order class. The corresponding eigenfunctions are exponentially localized in regions where $ξ$ takes large, and properly arranged, values. A new and self-contained argument is thus provided for Anderson localization at the spectral edge which permits a rather explicit description of the shape of the potential and the eigenfunctions. Our study serves as an input into the analysis of an associated parabolic Anderson problem.
description: 36 pages
Die Pfalzgrafen von Tübingen. Städtepolitik - Pfalzgrafenamt - Adelsherrschaft im Breisgau
Creators: name: Kittelberger, Gerhard
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 1 (1982): Rottenburger Jahrbuch für Kirchengeschichte, Band 1
Crossover behavior of conductivity in a discontinuous percolation model
Creators: name: Kim, Seongmin
name: Cho, Y. S.
name: Araujo, N. A. M.
name: Kahng, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: When conducting bonds are occupied randomly in a two-dimensional square lattice, the conductivity of the system increases continuously as the density of those conducting bonds exceeds the percolation threshold. Such a behavior is well known in percolation theory; however, the conductivity behavior has not been studied yet when the percolation transition is discontinuous. Here we investigate the conductivity behavior through a discontinuous percolation model evolving under a suppressive external bias. Using effective medium theory, we analytically calculate the conductivity behavior as a function of the density of conducting bonds. The conductivity function exhibits a crossover behavior from a drastically to a smoothly increasing function beyond the percolation threshold in the thermodynamic limit. The analytic expression fits well our simulation data.
Kirche am Oberrhein. Beiträge zur Geschichte der Bistümer Konstanz und Freiburg
Creators: name: Maier, Konstantin
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 1 (1982): Rottenburger Jahrbuch für Kirchengeschichte, Band 1
Transition between mechanisms of laser-induced field-free molecular orientation
Creators: name: Znakovskaya, Irina
name: Spanner, Michael
name: De, Sankar
name: Li, Hui
name: Ray, Dipanwita
name: Corkum, Paul
name: Litvinyuk, Igor V.
name: Cocke, C. Lewis
name: Kling, Matthias F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The transition between two distinct mechanisms for the laser-induced field-free orientation of CO molecules is observed via measurements of orientation revival times and subsequent comparison to theoretical calculations. In the first mechanism, which we find responsible for the orientation of CO up to peak intensities of 8 x 10^13 W/cm^2, the molecules are impulsively oriented through the hyperpolarizability interaction. At higher intensities, asymmetric depletion through orientation-selective ionization is the dominant orienting mechanism. In addition to the clear identification of the two regimes of orientation, we propose that careful measurements of the onset of the orientation depletion mechanism as a function of the laser intensity will provide a relatively simple route to calibrate absolute rates of non-perturbative strong-field molecular ionization.
description: 5 pages, 2 figures
Cosmic censorship in Lovelock theory
Creators: name: Camanho, Xian O.
name: Edelstein, Jose D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In analyzing maximally symmetric Lovelock black holes with non-planar horizon topologies, many novel features have been observed. The existence of finite radius singularities, a mass gap in the black hole spectrum and solutions displaying multiple horizons are noteworthy examples. Naively, in all these cases, the appearance of naked singularities seems unavoidable, leading to the question of whether these theories are consistent gravity theories. We address this question and show that whenever the cosmic censorship conjecture is threaten, an instability generically shows up driving the system to a new configuration with presumably no naked singularities. Also, the same kind of instability shows up in the process of spherical black holes evaporation in these theories, suggesting a new phase for their decay. We find circumstantial evidence indicating that, contrary to many claims in the literature, the cosmic censorship hypothesis holds in Lovelock theory.
description: 25 pages, 6 figures
Josef Seehofer, Stadt Weißenstein und Gemeinde Nenningen (seit 1. Januar 1974 Stadt Lauterstein) in Vergangenheit und Gegenwart
Creators: name: Reinhardt, Rudolf
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 1 (1982): Rottenburger Jahrbuch für Kirchengeschichte, Band 1
Claus Anshoff, Boll - Dürnau - Gammelshausen
Creators: name: Reinhardt, Rudolf
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 1 (1982): Rottenburger Jahrbuch für Kirchengeschichte, Band 1
Anisotropic deformation of Rydberg blockade sphere in few-atom systems
Creators: name: Qian, Jing
name: Zhao, Xing-Dong
name: Zhou, Lu
name: Zhang, Weiping
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Rydberg blockade sphere persists an intriguing picture by which a number of collective many-body effects caused by the strong Rydberg-Rydberg interactions can be clearly understood and profoundly investigated. In the present work, we develop a new definition for the effective two-atom blockade radius and show that the original spherically shaped blockade surface would be deformed when the real number of atoms increases from two to three. This deformation of blockade sphere reveals spatially anisotropic and shrunken properties which strongly depend on the interatomic distance. In addition, we also study the optimal conditions for the Rydberg antiblockade effect and make predictions for improving the antiblockade efficiency in few-atom systems.
description: 7 pages, 3 figures, submitted to Physical Review A
Wolf-Dieter Hepach, Ulm im Königreich Württemberg 1810-1848
Creators: name: Brechenmacher, Karl
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 1 (1982): Rottenburger Jahrbuch für Kirchengeschichte, Band 1
Siegfried Krezdorn / Adolf Schahl, Schemmerhofen
Creators: name: Beck, Otto
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 1 (1982): Rottenburger Jahrbuch für Kirchengeschichte, Band 1
The Impact of fluid supply on energy efficiency and process performance in grinding
Creators: name: Heinzel, Carsten
name: Kolkwitz, Benjamin
Publisher: name: Elsevier
Year: 2019
Subjects: subject: Grinding
subject: Energy efficiency
subject: Fluid supply configuration
subject: 620

description: An approach is presented to evaluate the energy efficiency of grinding processes by the total specific energy in relation to the process limits, e.g. starting thermal damage at a certain specific removal rate. The paper deals with grinding experiments on hardened steel workpieces covering a broad range of different types of fluid supply nozzles, fluid flowrates, and removal rates with and without high pressure tool cleaning. In the investigations, process configurations were identified leading to high energy efficiency in combination with highest achievable removal rates. Furthermore, the results confirm that the process limit is significantly influenced by specifically adapted fluid supply conditions e.g. flowrate and jet speed.
It's not (all) about efficiency: Powering and organizing technology from a degrowth perspective
Creators: name: Zoellick, Jan Cornelius
name: Bisht, Arpita
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2018
Subjects: subject: degrowth
subject: post-growth
subject: 300 Sozialwissenschaften::300 Sozialwissenschaften, Soziologie::300 Sozialwissenschaften
subject: 300 Sozialwissenschaften::360 Soziale Probleme, Sozialdienste::363 Andere soziale Probleme und Sozialdienste
subject: 600 Technik, Medizin, angewandte Wissenschaften::600 Technik::600 Technik, Technologie
subject: 600 Technik, Medizin, angewandte Wissenschaften::600 Technik::601 Philosophie, Theorie

description: Transgressions of ecological boundaries and increasing social inequality question the paradigm of continual economic growth guided by technological efficiency - often cited as the only solution to these crises. This paper develops a critical and diversified viewpoint on technology for degrowth. 'Classical perspectives' of Illich's convivial society, Elull's critique of technique, Mumford's tools and machines, and Schumacher's critique of gigantic technoinfrastructures are explored and combined with Arendt's instrumentality of technologies and Marxist perspectives on ownership. Two questions are posed regarding technology. First, which technologies are 'suitable' for a degrowth context? Previous frameworks by Illich and Schumacher are extended by ecological aspects to assess the suitability of technologies. Second, how should 'suitable' technologies be structured to enable egalitarian utilization? Here, Schumacher's "intermediate technologies" and ownership are central elements. The frameworks and analysis add value for degrowth activists and bridge the gap scientifically between Marxist views and those of degrowth. In conclusion, technologies in degrowth are suitable if they reduce ecological impact, enhance autonomy and conviviality, and are structurally available in an egalitarian way based on open-access regimes. In the discussion further research questions are posed regarding transforming agents and power relations between grassroots and the state. Limitations of the framework include the role of digital technologies for communication, here treated as electric tools, and the focus on industrialized societies.
900 Jahre Aßmannshardt - 700 Jahre Pfarrei St. Michael
Creators: name: Beck, Otto
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 1 (1982): Rottenburger Jahrbuch für Kirchengeschichte, Band 1
Sind Lehrpersonen im Gleichgewicht? Über die Life Domain Balance von Lehrpersonen und wie Schulen diese stärken können
Creators: name: Ziltener, Urs
Publisher: name: Zenodo
Year: 2018

description: Der Lehrberuf ist spannend, abwechslungsreich und die Arbeit mit Kindern ist erfüllend. Nichtsdestotrotz ist die Arbeitsbelastung hoch. Die Interaktionsfrequenz von Lehrpersonen im Unterricht ist hoch und erfordert viel Präsenz. Ausserdem kommt zur Unterrichtstätigkeit eine Vielzahl weiterer Arbeiten hinzu. Rund ein Drittel der Lehrerinnen und Lehrer läuft Gefahr an einem Burnout zu erkranken. Das Life Domain Balance Konzept ist eine Weiterentwicklung der bekannten Work Life Balance. Es behandelt die Frage, wie die verschiedenen Lebensbereiche in ein Gleichgewicht gebracht werden können. Zu den Lebensbereichen gehören neben der Arbeit unter anderem Freizeitbeschäftigungen und Hobbies, aber auch gesellschaftliche und familiäre Verpflichtungen. Das Gleichgewicht ist dabei kein statisch fixierter Zustand, sondern muss ständig neu ausbalanciert werden. Diese Arbeit widmet sich der Life Domain Balance von Lehrpersonen und fragt sich, mit welchen Massnahmen Schulen die Life Domain Balance von Lehrpersonen stärken können. Die Systemtheorie und die systemische Präventionstheorie bilden die theoretische Grundlage dieser Arbeit. Die Arbeit kommt zum Schluss, dass die Organisation Schule das bio-psycho-soziale System Lehrperson mit einer breiten Palette an Massnahmen auf der organisationalen Ebene, aber auch mit spezifischen Programmen und professionellem Handeln unterstützen kann und somit zur Stärkung der Life Domain Balance beiträgt. Minimierung des administrativen Aufwandes, wertschätzender Umgang im Lehrerkollegium und Unterstützung in schwierigen Situationen durch die Schulleitung oder weiteren Fachpersonen sind drei Möglichkeiten aus einer breiteren Palette an Massnahmen.
description: + Code Diss LU: hslusa mas pg + NL-Code: NLLUHSA201812 + Fussnote: Master-Arbeit MAS Prävention und Gesundheitsförderung, eingereicht am 28.09.2018
Massive Clumps in Local Galaxies: Comparisons with High-Redshift Clumps
Creators: name: Elmegreen, Bruce G.
name: Elmegreen, Debra Meloy
name: Almeida, Jorge Sanchez
name: Munoz-Tunon, Casiana
name: Dewberry, Janosz
name: Putko, Joseph
name: Teich, Yaron
name: Popinchalk, Mark
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Local UV-bright galaxies in the Kiso survey include clumpy systems with kpc-size star complexes that resemble clumpy young galaxies in surveys at high redshift. We compare clump masses and underlying disks in several dozen galaxies from each of these surveys to the star complexes and disks of normal spirals. Photometry and spectroscopy for the Kiso and spiral sample come from the Sloan Digital Sky Survey. We find that the largest Kiso clumpy galaxies resemble UDF clumpies in terms of the star formation rates, clump masses, and clump surface densities. Clump masses and surface densities in normal spirals are smaller. If the clump masses are proportional to the turbulent Jeans mass in the interstellar medium, then for the most luminous galaxies in the sequence of normal:Kiso:UDF, the turbulent speeds and surface densities increase in the proportions 1.0:4.7:5.0 and 1.0:4.0:5.1, respectively, for fixed restframe B-band absolute magnitude. For the least luminous galaxies in the overlapping magnitude range, the turbulent speed and surface density trends are 1.0:2.7:7.4 and 1.0:1.4:3.0, respectively. We also find that while all three types have radially decreasing disk intensities when measured with ellipse-fit azimuthal averages, the average profiles are more irregular for UDF clumpies (which are viewed in their restframe UV) than for Kiso galaxies (viewed at g-band), and major axis intensity scans are even more irregular for the UDF than Kiso galaxies. Local clumpy galaxies in the Kiso survey appear to be intermediate between UDF clumpies and normal spirals.
description: 24 pages, 15 figures, ApJ, in press
Introduction, with Th. Späth, in V. Dasen, Th. Späth (eds), Children, Memory, and Family Identity in Roman Culture, Oxford, Oxford University Press, 2010, 1-15
Creators: name: Dasen Véronique
Publisher: name: Zenodo
Year: 2010
Subjects: childhood
family
memory

description: This book discusses the transmission of social memory and social identities in elite and non-elite families. It provides definitions of the notion of individual and collective memory, and examines the importance of children in the transmission of family tradition and values from the Republican period to the Late Roman world. It deals also with threats to familial memory, in terms of children deliberately or accidentally excluded from the family group.
Egon Rieble, Sehen und Entdecken im Kreis Rottweil
Creators: name: Kustermann, Abraham Peter
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 1 (1982): Rottenburger Jahrbuch für Kirchengeschichte, Band 1
High-sensitive nascent transcript sequencing reveals BRD4-specific control of widespread enhancer and target gene transcription
Creators: name: Bressin, Annkatrin
name: Jasnovidova, Olga
name: Arnold, Mirjam
name: Altendorfer, Elisabeth
name: Trajkovski, Filip
name: Kratz, Thomas A.
name: Handzlik, Joanna E.
name: Hnisz, Denes
name: Mayer, Andreas
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Transcription
subject: Transcriptomics
subject: enhancer transcription
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Gene transcription by RNA polymerase II (Pol II) is under control of promoters and distal regulatory elements known as enhancers. Enhancers are themselves transcribed by Pol II correlating with their activity. How enhancer transcription is regulated and coordinated with transcription at target genes has remained unclear. Here, we developed a high-sensitive native elongating transcript sequencing approach, called HiS-NET-seq, to provide an extended high-resolution view on transcription, especially at lowly transcribed regions such as enhancers. HiS-NET-seq uncovers new transcribed enhancers in human cells. A multi-omics analysis shows that genome-wide enhancer transcription depends on the BET family protein BRD4. Specifically, BRD4 co-localizes to enhancer and promoter-proximal gene regions, and is required for elongation activation at enhancers and their genes. BRD4 keeps a set of enhancers and genes in proximity through long-range contacts. From these studies BRD4 emerges as a general regulator of enhancer transcription that may link transcription at enhancers and genes.
Technosignature Grading System to Optimize Detection on G-type Exoplanets Using Next-Generation Space Telescopes
Creators: name: Huggahalli, Advait
Publisher: name: Zenodo
Year: 2023

description: The quest for identifying Extraterrestrial Intelligence (ETI) presents an unparalleled opportunity to expand our understanding of the universe and our place in it. A planetary science-based approach has been devised to detect technosignatures, which are indicative of industrial activity, and thereby intelligent life. The approach involves identifying chemical compounds that are known to be byproducts of industrial activity and detecting their presence in the atmospheres of exoplanets by analyzing transmission spectra obtained using next-generation space telescopes such as the James Webb Space Telescope(JWST) and the Large Ultraviolet Optical Infrared Surveyor(LUVOIR). The combined detection range of these telescopes spans from 0.1-28.6 microns, enabling the measurement of exoplanetary atmospheric compositions through transmission spectroscopy within this zone. Despite the significance of this approach, prior research has lacked a systematic methodology for selecting, evaluating, and searching for technosignature candidates using these telescopes. This study proposes a comprehensive methodology that evaluates potential technosignature candidates based on 8 criteria, including 7 industrial chemistry attributes and spectroscopic detectability. The detectability criteria enable the identification of unique features within each compound's transmission spectral signatures in G-type (Earth-like) planetary atmospheres. G-type planets theoretically hold the highest probability of harboring ETI, due to their similar stellar parameters to Earth, a planet with confirmed technosignatures and ETI. The application of these systematic criteria resulted in the classification/grading of 55 technosignature candidates from the HITRAN database into 4 types, ranging from type-1(greatest) to type-4(lowest) based on their technosignature potential. This grading system facilitates the prioritization of promising candidates (type-1+type-2) for detection on G-type exoplanets using next-generation space telescopes, thereby advancing the search for ETI. Through the methodology, 32 compounds were identified as promising out of the 55 candidate compounds, with 8 of them demonstrating the greatest technosignature potential as type-1. These 8 candidates should be the primary focus of future searches for ETI using next-generation telescopes. This research defines clearly what we should be looking for in the pursuit of ETI, and enables these telescopes to hone in on the most promising candidates, expediting the search for ETI and optimizing telescope operational efficiency.
Morand Werner, Verborgene Schätze. Christliche Kunst aus 10 Jahrhunderten im Tauber-, Jagst- und Kochertal ...
Creators: name: Keck, Alois
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 1970

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 1 (1982): Rottenburger Jahrbuch für Kirchengeschichte, Band 1
Letter from Gordon Browne, 1897
Creators: name: Browne, Gordon, 1858-1932
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Illustration of books
valueUri: http://id.worldcat.org/fast/967406
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Illustrators
valueUri: http://id.worldcat.org/fast/967426

description: An undated Autographed Letter Signed (ALS) from Gordon Browne providing an entertaining account of his early career. "...After the usual time at what may be called 'Dr Whackem's school for the sons of gentlemen', in fact a private school, I had a rather short & rather jerky kind of art school training, partly at S.Kensington which did not come up to my then lofty ideal and longer at Heatherleys. Then worked for a short time under Mr Cooper the engraver with the double branched purpose of earning something & learning how to draw on the wood, a most useless piece of knowledge now a days..." Gordon Frederick Browne (1858-1932), artist and children's book illustrator. He was born in Banstead, the younger son of notable book illustrator Hablot Knight Browne ("Phiz"). From the 1880s, Browne was one of Britain's most prolific illustrators. Part of a collection of letters written by illustrators of Charles Dickens' works.
Magnet Quench 101
Creators: name: Bottura, L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: This paper gives a broad summary of the physical phenomena associated with the quench of a superconducting magnet.
description: 9 pages, Contribution to WAMSDO 2013: Workshop on Accelerator Magnet, Superconductor, Design and Optimization; 15 - 16 Jan 2013, CERN, Geneva, Switzerland
One-pot nucleophilic substitution–double click reactions of biazides leading to functionalized bis(1,2,3-triazole) derivatives
Creators: name: Reissig, Hans-Ulrich
name: Yu, Fei
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: alkynes
subject: azides
subject: copper catalysis
subject: nucleophilic substitution
subject: 1,2-oxazines
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: The nucleophilic substitution of benzylic bromides with sodium azide was combined with a subsequent copper-catalyzed (3 + 2) cycloaddition with terminal alkynes. This one-pot process was developed with a simple model alkyne, but then applied to more complex alkynes bearing enantiopure 1,2-oxazinyl substituents. Hence, the precursor compounds 1,2-, 1,3- or 1,4-bis(bromomethyl)benzene furnished geometrically differing bis(1,2,3-triazole) derivatives. The use of tris[(1-benzyl-1H-1,2,3-triazol-4-yl)methyl]amine (TBTA) as ligand for the click step turned out to be very advantageous. The compounds with 1,2-oxazinyl end groups can potentially serve as precursors of divalent carbohydrate mimetics, but the reductive cleavage of the 1,2-oxazine rings to aminopyran moieties did not proceed cleanly with these compounds.
Ultrafast dynamics in polymeric carbon nitride thin films probed by time-resolved EUV photoemission and UV-Vis transient absorption spectroscopy
Creators: name: Kuzkova, Nataliia
name: Kiyan, Igor Yu.
name: Wilkinson, Iain
name: Merschjann, Christoph
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: polymeric carbon nitride thin films
subject: time-resolved EUV photoemission
subject: UV-Vis transient absorption spectroscopy
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: The ground- and excited-state electronic structures of four polymeric carbon nitride (PCN) materials have been investigated using a combination of photoemission and optical absorption spectroscopy. To establish the driving forces for photocatalytic water-splitting reactions, the ground-state data was used to produce a band diagram of the PCN materials and the triethanolamine electron scavenger, commonly implemented in water-splitting devices. The ultrafast charge-carrier dynamics of the same PCN materials were also investigated using two femtosecond-time-resolved pump–probe techniques: extreme-ultraviolet (EUV) photoemission and ultraviolet-visible (UV-Vis) transient absorption spectroscopy. The complementary combination of these surface- and bulk-sensitive methods facilitated photoinduced kinetic measurements spanning the sub-picosecond to few nanosecond time range. The results show that 400 nm (3.1 eV) excitation sequentially populates a pair of short-lived transient species, which subsequently produce two different long-lived excited states on a sub-picosecond time scale. Based on the spectro-temporal characteristics of the long-lived signals, they are assigned to singlet-exciton and charge-transfer states. The associated charge-separation efficiency was inferred to be between 65% and 78% for the different studied materials. A comparison of results from differently synthesized PCNs revealed that the early-time processes do not differ qualitatively between sample batches, but that materials of more voluminous character tend to have higher charge separation efficiencies, compared to exfoliated colloidal materials. This finding was corroborated via a series of experiments that revealed an absence of any pump-fluence dependence of the initial excited-state decay kinetics and characteristic carrier-concentration effects that emerge beyond few-picosecond timescales. The initial dynamics of the photoinduced charge carriers in the PCNs are correspondingly determined to be spatially localised in the immediate vicinity of the lattice-constituting motif, while the long-time behaviour is dominated by charge-transport and recombination processes. Suppressing the latter by confining excited species within nanoscale volumes should therefore affect the usability of PCN materials in photocatalytic devices.