cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The VLT-FLAMES survey of massive stars: Surface chemical compositions of B-type stars in the Magellanic Clouds
Creators: name: Hunter, I.
name: Dufton, P. L.
name: Smartt, S. J.
name: Ryans, R. S. I.
name: Evans, C. J.
name: Lennon, D. J.
name: Trundle, C.
name: Hubeny, I.
name: Lanz, T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an analysis of high-resolution FLAMES spectra of approximately 50 early B-type stars in three young clusters at different metallicities, NGC6611 in the Galaxy, N11 in the Large Magellanic Cloud (LMC) and NGC346 in the Small Magellanic Cloud (SMC). Using the TLUSTY non-LTE model atmospheres code, atmospheric parameters and photospheric abundances (C, N, O, Mg and Si) of each star have been determined. These results represent a significant improvement on the number of Magellanic Cloud B-type stars with detailed and homogeneous estimates of their atmospheric parameters and chemical compositions. The relationships between effective temperature and spectral type are discussed for all three metallicity regimes, with the effective temperature for a given spectral type increasing as one moves to a lower metallicity regime. Additionally the difficulties in estimating the microturbulent velocity and the anomalous values obtained, particularly in the lowest metallicity regime, are discussed. Our chemical composition estimates are compared with previous studies, both stellar and interstellar with, in general, encouraging agreement being found. Abundances in the Magellanic Clouds relative to the Galaxy are discussed and we also present our best estimates of the base-line chemical composition of the LMC and SMC as derived from B-type stars. Additionally we discuss the use of nitrogen as a probe of the evolutionary history of stars, investigating the roles of rotational mixing, mass-loss, blue loops and binarity on the observed nitrogen abundances and making comparisons with stellar evolutionary models where possible.
description: A&A accepted. 32 pages, 14 figures reduced in quality. Replaced version updated with correct masses for LMC objects. Full quality version and online data available at http://star.pst.qub.ac.uk/~ih/
Joint density for the local times of continuous-time Markov chains
Creators: name: Brydges, David
name: van der Hofstad, Remco
name: König, Wolfgang
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60J55, 60J27 (Primary)

description: We investigate the local times of a continuous-time Markov chain on an arbitrary discrete state space. For fixed finite range of the Markov chain, we derive an explicit formula for the joint density of all local times on the range, at any fixed time. We use standard tools from the theory of stochastic processes and finite-dimensional complex calculus. We apply this formula in the following directions: (1) we derive large deviation upper estimates for the normalized local times beyond the exponential scale, (2) we derive the upper bound in Varadhan's lemma for any measurable functional of the local times, and (3) we derive large deviation upper bounds for continuous-time simple random walk on large subboxes of $\mathbb{Z}^d$ tending to $\mathbb{Z}^d$ as time diverges. We finally discuss the relation of our density formula to the Ray--Knight theorem for continuous-time simple random walk on $\mathbb{Z}$, which is analogous to the well-known Ray--Knight description of Brownian local times.
description: Published at http://dx.doi.org/10.1214/009171906000001024 in the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Solar neutrino detection in liquid xenon detectors via charged-current scattering to excited states
Creators: name: Haselschwardt, Scott
name: Lenardo, Brian
name: Pirinen, Pekka
name: Suhonen, Jouni
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We investigate the prospects for real-time detection of solar neutrinos via the charged-current neutrino-nucleus scattering process in liquid xenon time projection chambers. We use a nuclear shell model, benchmarked with experimental data, to calculate the cross sections for populating specific excited states of the caesium nuclei produced by neutrino capture on $^{131}$Xe and $^{136}$Xe. The shell model is further used to compute the decay schemes of the low-lying $1^{+}$ excited states of $^{136}$Cs, for which there is sparse experimental data. We explore the possibility of tagging the characteristic de-excitation $γ$-rays/conversion electrons using two techniques: spatial separation of their energy deposits using event topology and their time separation using delayed coincidence. The efficiencies in each case are evaluated within a range of realistic detector parameters. We find that the topological signatures are likely to be dominated by radon backgrounds, but that a delayed coincidence signature from long-lived states predicted in $^{136}$Cs may enable background-free detection of CNO neutrino interactions in next-generation experiments with smaller uncertainty than current measurements. We also estimate the sensitivity as a function of exposure for detecting the solar-temperature-induced line shift in $^{7}$Be neutrino emission, which may provide a new test of solar models.
description: 12 pages, 7 figures
Μοντέλα γραμμικού προγραμματισμού για το πρόβλημα του περιοδεύοντος πωλητή:
Creators: name: Τσαρακλίδου, Μαρίνα-Αννα Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Πρόβλημα περιοδεύοντος Πωλητή
Μοντέλα γραμμικού προγραμματισμού
Περιοδεύων πωλητής
Travel Salesman Problem
Linear Programming
LINDO

description: Στο γνωστικό αντικείμενο της επιχειρησιακής έρευνας η εμφάνιση μαθηματικών εργαλείων για την επίλυση οικονομικών προβλημάτων είναι πολύ συχνή. Ο γραμμικός προγραμματισμός τη σημερινή εποχή αποτελεί αναμφίβολα το δημοφιλέστερο μοντέλο στο χώρο της επιχειρησιακής έρευνας αλλά και της διοικητικής επιστήμης γενικότερα. Η παρούσα μεταπτυχιακή διπλωματική εργασία ασχολείται με τα μοντέλα γραμμικού προγραμματισμού στο πρόβλημα του περιοδεύοντος πωλητή. Στόχος της εργασίας είναι ο εντοπισμός των βέλτιστων δρομολογίων που πρέπει να κάνει καθημερινά ένας επιθεωρητής πωλήσεων της εταιρίας Παπαστράτος στην ευρύτερη περιοχή των Ιωαννίνων. Κάθε επιθεωρητής πωλήσεων έχει ένα συγκεκριμένο σημείο εκκίνησης (αντιπροσωπεία καπνικών προϊόντων), καθώς και κάποια συγκεκριμένα σημεία λιανικής πώλησης που θα πρέπει να επισκεφτεί. Με τη βοήθεια της γλώσσας προγραμματισμού Lindo/Lingo, κωδικοποιήσαμε τα μοντέλα γραμμικού προγραμματισμού και βρήκαμε λύσεις στο πρόβλημα του περιοδεύοντος πωλητή. Έτσι, βρήκαμε τη συνολική βέλτιστη απόσταση που χρειάζεται να κάνει ένας επιθεωρητής πωλήσεων της εταιρίας Παπαστράτος, από το σημείο εκκίνησής του(αντιπροσωπεία καπνικών προϊόντων), στα επισκεπτόμενα σημεία λιανικής πώλησης, και πάλι πίσω στο σημείο εκκίνησής του. Τέλος, η σημαντικότερη συνεισφορά της παρούσας έρευνας, είναι τόσο η μείωση του χρόνου των καθημερινών δρομολογίων των επιθεωρητών πωλήσεων στην περιοχή των Ιωαννίνων, όσο και αύξηση της αποδοτικότητάς τους.
description: In operations research, it is really common to use mathematical tools in order to solve economic problems. Nowadays, linear programming is the most popular model in the field of operations research and management. This master thesis deals with many linear programming models while it studies the travelling salesman problem (TSP). The aim of this research is to identify the best possible routes of a sales inspector of Papastratos Company in the region of Ioannina. Every day, each sales inspector has to make a standard route from a specific starting point (warehouse of the tobacco products) to some different retail locations. In order to find the solution of the travelling salesman problem, we used the Lindo/Lingo programming language and we encoded the linear programming models. So, with the help of Lindo/Lingo, we found the optimal overall distance that a Papastratos sales inspector should travel each day. This optimal route, counts the distance from the tobacco warehouse of Ioannina to the retail locations, and back to its starting point. In conclusion, the contribution of this research is, not only to decrease the time of the everyday routes of the sales inspectors of Papastratos Company, but also to increase their productivity.
Stefano Calabrese, La comunicazione narrativa. Dalla letteratura alla quotidianità
Creators: name: Pianzola, Federico
Publisher: name: Università degli Studi di Milano
Year: 2010
Subjects: Stefano Calabrese, narratologia, narrazione, comunicazione

description: Si recensisce Stefano Calabrese, La comunicazione narrativa. Dalla letteratura alla quotidianità, Bruno Mondadori, Milano, 2010.
description: ENTHYMEMA, No 2 (2010)
An Automated Implementation of On-Shell Methods for One-Loop Amplitudes
Creators: name: Berger, C. F.
name: Bern, Z.
name: Dixon, L. J.
name: Cordero, F. Febres
name: Forde, D.
name: Ita, H.
name: Kosower, D. A.
name: Maitre, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the first results from BlackHat, an automated C++ program for calculating one-loop amplitudes. The program implements the unitarity method and on-shell recursion to construct amplitudes. As input to the calculation, it uses compact analytic formulae for tree amplitudes for four-dimensional helicity states. The program performs all related computations numerically. We make use of recently developed on-shell methods for evaluating coefficients of loop integrals, introducing a discrete Fourier projection as a means of improving efficiency and numerical stability. We illustrate the numerical stability of our approach by computing and analyzing six-, seven- and eight-gluon amplitudes in QCD and comparing against previously-obtained analytic results.
description: 38 pages, 10 figures, RevTex
Evolutionary Markovian Strategies in 2 x 2 Spatial Games
Creators: name: Fort, Hugo
name: Sicardi, Estrella
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Evolutionary spatial 2 x 2 games between heterogeneous agents are analyzed using different variants of cellular automata (CA). Agents play repeatedly against their nearest neighbors 2 x 2 games specified by a rescaled payoff matrix with two parameteres. Each agent is governed by a binary Markovian strategy (BMS) specified by 4 conditional probabilities [p_R, p_S, p_T, p_P] that take values 0 or 1. The initial configuration consists in a random assignment of "strategists" among the 2^4= 16 possible BMS. The system then evolves within strategy space according to the simple standard rule: each agent copies the strategy of the neighbor who got the highest payoff. Besides on the payoff matrix, the dominant strategy -and the degree of cooperation- depend on i) the type of the neighborhood (von Neumann or Moore); ii) the way the cooperation state is actualized (deterministically or stochastichally); and iii) the amount of noise measured by a parameter epsilon. However a robust winner strategy is [1,0,1,1].
description: 18 pages, 8 figures (7 of these figures contain 4 encapsulapted poscript files each)
Low cost educational platform for robotics, using open-source 3D printers and open-source hardware
Creators: name: García-Saura, Carlos
name: González-Gómez, Juan
Publisher: name: IATED
Year: 2012

description: In this paper, we present a new design methodology for educational robotic platforms. Using printbots (open-source 3D-printable robots) as a starting point in our designs has allowed us to create custom robots with very little effort. Using this new methodology we have designed the ArduSkybot, a robot that has enough features for its usage at different educational levels while keeping a very reduced cost. The robot is based on Arduino and the Printshield, our new electronics platform. It provides integration of various sensors (light, distance and line sensors) and actuators (motors, lights and speaker). It is also easy to expand by students and researchers. We describe our designs, and document their performance in various workshops with college, primary and secondary students. Our methodology is described and suggestions are given regarding future printbot-based workshops.

This record includes the article and the presentation slides.
Tunneling transport of unitary fermions across the superfluid transition
Creators: name: Del Pace, G.
name: Kwon, W. J.
name: Zaccanti, M.
name: Roati, G.
name: Scazza, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We investigate the transport of a Fermi gas with unitarity-limited interactions across the superfluid phase transition, probing its response to a direct current (dc) drive through a tunnel junction. As the superfluid critical temperature is crossed from below, we observe the evolution from a highly nonlinear to an Ohmic conduction characteristics, associated with the critical breakdown of the Josephson dc current induced by pair condensate depletion. Moreover, we reveal a large and dominant anomalous contribution to resistive currents, which reaches its maximum at the lowest attained temperature, fostered by the tunnel coupling between the condensate and phononic Bogoliubov-Anderson excitations. Increasing the temperature, while the zeroing of supercurrents marks the transition to the normal phase, the conductance drops considerably but remains much larger than that of a normal, uncorrelated Fermi gas tunneling through the same junction. We attribute such enhanced transport to incoherent tunneling of sound modes, which remain weakly damped in the collisional hydrodynamic fluid of unpaired fermions at unitarity.
description: 6+13 pages, 4 + 5 figures
Neuroscienze e teoria letteraria. II - Un esperimento di lettura
Creators: name: Ballerio, Stefano
Publisher: name: Università degli Studi di Milano
Year: 2010
Subjects: Neuroscienze cognitive, memoria, autobiografia, Vittorio Alfieri

description: Questa seconda parte dell'articolo sviluppa le premesse teoriche e metodologiche definite nella prima parte. Dalle conoscenze neuroscientifiche sulla memoria si ricavano alcune idee che quindi sono ripensate in termini psicologici e usate come euristica per un esame della Vita di Vittorio Alfieri. Lo scopo è valutare se le conoscenze neuroscientifiche, attraverso le mediazioni descritte, possano contribuire all'interpretazione di un'opera letteraria. L'autobiografia alfieriana è quindi studiata per il modo in cui il passato è rievocato e raccontato. Infine, si propongono alcune conclusioni teoriche e metodologiche.
description: ENTHYMEMA, No 2 (2010)
Anwendung von Druck zur Untersuchung der Wechselwirkungen zwischen Proteinen und Polyelektrolytgrenzflächen sowie Modellbiomembranen
Creators: name: Levin, Artem
Publisher: name: Technische Universität Dortmund
Year: 2019
Subjects: subject: Protein
subject: Wechselwirkung
subject: Grenzfläche
subject: Polyelektrolyt
subject: Fusionspeptid
subject: 540
subject: Protein
subject: Grenzflächen

description: Alle Proteinfunktionen basieren auf Wechselwirkungen mit der Umwelt. Proteine können Moleküle für ihren Transport, ihre katalytische Umwandlung oder für die Signaltransduktion binden. Sie können sich aneinander binden, und sie adsorbieren an Grenzflächen, wie z.B. Lipidmembranen oder Materialoberflächen. Eine experimentelle Charakterisierung ist notwendig, um die zugrunde liegenden Mechanismen zu verstehen, aber auch um Proteine in der Biotechnologie oder Biomedizin zu nutzen. Wenn Proteininteraktionen unter hohem Druck untersucht werden, zeigen sich Volumenänderungen, die direkt räumliche Beiträge zu diesen Interaktionen beschreiben. Darüber hinaus kann durch Druckmodulation die Stärke von Proteininteraktionen mit Liganden oder Grenzflächen abgestimmt werden, um die gewünschten Eigenschaften, die bei der Entwicklung von Medikamenten eingesetzt werden können, zu erhalten. In dieser Arbeit werden vier Studien vorgestellt, die unter hohem Druck durchgeführt wurden. Zum einen werden das Adsorptionsverhalten und die katalytische Aktivität unterschiedlicher Proteinen an verschieden geladenen Polyelektrolyt-Bürsten untersucht. Zum anderen wird eine Perspektive auf bio-reaktive Grenzflächenstrukturen gezeigt, wenn die Protein-Liganden-Bindung angewendet wird. Schließlich wird der Beitrag der Fusionspeptide zur viralen Membranfusion diskutiert.
Additional file 1 of On the use of whole-genome sequence data for across-breed genomic prediction and fine-scale mapping of QTL
Creators: name: Meuwissen, Theo
name: Berg, Irene Van Den
name: Goddard, Mike
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Manhattan plots of the variance of the local GEBV within 250-kb regions for kg milk. Figure S2. Manhattan plots of the variance of the local GEBV within 250-kb regions for kg fat. Figure S3. Manhattan plots of the variance of the local GEBV within 250-kb regions for kg protein. Figure S4. Manhattan plots of the variance of the local GEBV within 250-kb regions for protein percentage.
Gauge symmetries decrease the number of Dp-brane dimensions. II. Inclusion of the Liouville term
Creators: name: Nikolic, B.
name: Sazdovic, B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The presence of the antisymmetric background field $B_{μν}$ leads to the noncommutativity of the Dp-brane manifold, while the linear dilaton field in the form $Φ(x)=Φ_0+a_μx^μ$, causes the appearance of the commutative Dp-brane coordinate, $x_c=a_μx^μ$. In the present article we consider the case where the conformal invariance is realized by inclusion of the Liouville term. Then, the theory is conformally invariant even in the presence of the world sheet conformal factor $F$, and it depends on the new parameter, the central charge $c$. As well as in the absence of the Liouville action, for particular relations between background fields, the local gauge symmetries appear in the theory. They turn some Neumann boundary conditions into the Dirichlet ones, and decrease the number of the Dp-brane dimensions.
description: 21 pages, 1 table, one sentence in the abstract is added, some explanations in the Introduction and Concluding remarks are added in order to improve the manuscript and to emphasize the new results
Modelling the Galactic Foreground and Beam Chromaticity for Global 21-cm Cosmology
Creators: name: Hibbard, Joshua J.
name: Tauscher, Keith
name: Rapetti, David
name: Burns, Jack O.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In order to characterize and model the beam-weighted foreground for global 21-cm signal experiments, we present a methodology for generating basis eigenvectors that combines analytical and observational models of both the galactic spectral index and sky brightness temperature with simulations of beams having various angular and spectral dependencies and pointings. Each combination creates a unique beam-weighted foreground. By generating eigenvectors to fit each foreground model using Singular Value Decomposition (SVD), we examine the effects of varying the components of the beam-weighted foreground. We find that the eigenvectors for modelling an achromatic, isotropic beam -- the ideal case -- are nearly identical regardless of the unweighted foreground model used, and are practicably indistinguishable from polynomial-based models. When anisotropic, chromatic beams weight the foreground, however, a coupling is introduced between the spatial and spectral structure of the foreground which distorts the eigenvectors away from the polynomial models and induces a dependence of the basis upon the exact features of the beam (chromaticity, pattern, pointing) and foreground (spectral index, sky brightness temperature map). We find that the beam has a greater impact upon the eigenvectors than foreground models. Any model which does not account for its distortion may produce RMS uncertainties on the order of $\sim 10$ - $10^3$ Kelvin for six-parameter, single spectrum fits. If the beam is incorporated directly using SVD and training sets, however, the resultant eigenvectors yield milli-Kelvin level uncertainties. Given a sufficiently detailed description of the sky, our methodology can be applied to any particular experiment with a suitably characterized beam for the purpose of generating accurate beam-weighted foreground models.
description: 16 pages, 10 figures
Η παντεχνεία του ανθρώπου στο βιβλίο Η Γλώσσα μου της Στ' Δημοτικού - Ανθρωπολογικές, ηθικές και οικολογικές διαστάσεις ενός διδακτικού σφάλματος
Creators: name: Κορκόβελος, Χρήστος
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: One of the most classical tests of our ancient, tragic poetry is taught through the book of Glοssa in the 6th class of Primary School. The elimination of its central concept, the weak translation as well as the wrong interpretation of the text in the Teacher's Book dramatically change the thoughts of the poet and make them seem siding innovative ideological views which are overwhelmed by anthropological, moral and ecological I standards. In this project a different approach is presented. II restores the thought of the poet and stresses its fertile ideas and timeliness in relation to problems of technique, knowledge of man and ecology. I hope this analysis will be taken into serious consideration, in vie of | the creation of the new Student's Book.
description: Παιδαγωγική Επιθεώρηση, Vol. 41 (2006)
Δημοσίευση και Οπτική Αναπαράσταση Συνδεδεμένων Δεδομένων για την Οδική Ασφάλεια στην Ελλάδα:
Creators: name: Γεωργιλά, Χιονία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Συνδεδεμένα Δεδομένα
Τροχαία Ατυχήματα στην Ελλάδα
Linked Data
Google maps and Google charts apis
Road Fatalities in Greece

description: Σκοπός της εργασίας ήταν χρησιμοποιώντας τις αρχές των Συνδεδεμένων Δεδομένων, να δημοσιευτούν δύο Σύνολα Συνδεδεμένων Δεδομένων με βάση τα στοιχεία των Τροχαίων Ατυχημάτων στην Ελλάδα και στη συνέχεια να δημιουργηθούν εφαρμογές απεικόνισης των δεδομένων αυτών σε γεωγραφικούς χάρτες και στατιστικά διαγράμματα. Η εργασία περιγράφει αναλυτικά τις φάσεις προ-επεξεργασίας των δεδομένων, δημιουργίας των οντολογιών, μετατροπής των δεδομένων σε RDF μοντέλο και διασύνδεσής τους με άλλα σύνολα δεδομένων, αποθήκευσης και διαχείρισης τους σε Triplestore και δημοσίευσής τους στο Web of Data. Χρησιμοποιήθηκαν εργαλεία ανοικτού κώδικα και ακολουθήθηκαν μεθοδολογίες τόσο για τη δημιουργία των Οντολογιών όσο και για τη μοντελοποίηση και τη δημοσίευση των Συνδεδεμένων Δεδομένων. Δημοσιεύτηκαν δύο Οντολογίες: μία για την περιγραφή των Θανατηφόρων Τροχαίων Ατυχημάτων στην Ελλάδα και μία για τις Στατιστικές Μετρήσεις σχετικά με τα Θανατηφόρα Τροχαία Ατυχήματα στην Ελλάδα ενώ δημοσιεύτηκαν και τα αντίστοιχα σύνολα δεδομένων τόσο σε RDF dump μορφή, όσο και μέσω του Virtuoso Triplestore. Κατασκευάστηκαν δύο javascript εφαρμογές που διατίθενται στη διεύθυνση http://crashmap.okfn.gr, ενσωματώνοντας τα Google maps και Google charts apis.
description: The aim of this master thesis is firstly, by using the principles of Linked Data, to publish two Linked Datasets for Road Accidents in Greece and then to create visuaization applications (with maps and charts) for these datasets. This paper describes in detail the phases of data pre-processing, ontologies creation, data rdfizing, data linking, data storage and management in Virtuoso Triplestore and finally data publishing in the Web of Data. During this study, open source tools were used and Οntology development and Linked Data modelling and publishing methodologies were applied. There are three basic outcomes: the publication of two Ontologies - one for the description of road fatalities in Greece and one for the statistical measurement of road fatalities in Greece - the publication of two Datasets and the development of two javascript applications which are available at http://crashmap.okfn.gr.
Perturbative Anti-Brane Potentials in Heterotic M-theory
Creators: name: Gray, James
name: Lukas, Andre
name: Ovrut, Burt
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive the perturbative four-dimensional effective theory describing heterotic M-theory with branes and anti-branes in the bulk space. The back-reaction of both the branes and anti-branes is explicitly included. To first order in the heterotic strong-coupling expansion, we find that the forces on branes and anti-branes vanish and that the KKLT procedure of simply adding to the supersymmetric theory the probe approximation to the energy density of the anti-brane reproduces the correct potential. However, there are additional non-supersymmetric corrections to the gauge-kinetic functions and matter terms. The new correction to the gauge kinetic functions is important in a discussion of moduli stabilization. At second order in the strong-coupling expansion, we find that the forces on the branes and anti-branes become non-vanishing. These forces are not precisely in the naive form that one may have anticipated and, being second order in the small parameter of the strong-coupling expansion, they are relatively weak. This suggests that moduli stabilization in heterotic models with anti-branes is achievable.
description: 38 pages, 3 figures
Towards a quantum interface between spin waves and paramagnetic spin baths
Creators: name: Gonzalez-Ballestero, C.
name: van der Sar, T.
name: Romero-Isart, O.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Spin waves have risen as promising candidate information carriers for the next generation of information technologies. Recent experimental demonstrations of their detection using electron spins in diamond pave the way towards studying the back-action of a controllable paramagnetic spin bath on the spin waves. Here, we present a quantum theory describing the interaction between spin waves and paramagnetic spins. As a case study we consider an ensemble of nitrogen-vacancy spins in diamond in the vicinity of an Yttrium-Iron-Garnet thin film. We show how the back-action of the ensemble results in strong and tuneable modifications of the spin-wave spectrum and propagation properties. These modifications include the full suppression of spin-wave propagation and, in a different parameter regime, the enhancement of their propagation length by $\sim 50\%$. Furthermore, we show how the spin wave thermal fluctuations induce a measurable frequency shift of the paramagnetic spins in the bath. This shift results in a thermal dispersion force that can be measured optically and/or mechanically with a diamond mechanical resonator. In addition, we use our theory to compute the spin wave-mediated interaction between the spins in the bath. We show that all the above effects are measurable by state-of-the-art experiments. Our results provide the theoretical foundation for describing hybrid quantum systems of spin waves and spin baths, and establish the potential of quantum spins as active control, sensing, and interfacing tools for spintronics.
description: 10 pages, 4 figures + Appendix (34 pages, 12 figures)
Additional file 2 of On the use of whole-genome sequence data for across-breed genomic prediction and fine-scale mapping of QTL
Creators: name: Meuwissen, Theo
name: Berg, Irene Van Den
name: Goddard, Mike
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Figure S5. Manhattan plot of the variance of the local GEBV within 250-kb regions for fat percentage on BTA2. Figure S6. Manhattan plot of the variance of the local GEBV within 250-kb regions for fat percentage on BTA5. Figure S7. Manhattan plot of the variance of the local GEBV within 250-kb regions for fat percentage on BTA11. Figure S8. Manhattan plot of the variance of the local GEBV within 250-kb regions for fat percentage on BTA14.
Estimità/intimità: tra pulsioni e passioni dell'essere
Creators: name: Bottiroli, Giovanni
Publisher: name: Università degli Studi di Milano
Year: 2010
Subjects: Personaggio; interiorità; passioni

description: Per la cultura del Novecento, la nozione di «interiorità» non è una nozione ovvia. Al contrario: i pensatori più innovativi l’hanno messa radicalmente in discussione. Heidegger rifiuta l’idea di un soggetto incapsulato, che dovrebbe aprirsi al mondo esterno; Freud teorizza un soggetto diviso, definito da processi di identificazione, cioè da un rapporto costitutivo con l’alterità. Si può dunque sostenere che la nozione di interiorità è accettabile solo nella prospettiva (pre-freudiana) di un soggetto indiviso.
Secondo Lacan (Seminario VII), l’intimità del soggetto è abitata dall’estimità, cioè da un’esteriorità opaca che eccede ogni tentativo di padronanza e di trasparenza. Nell’estimità, nel dinamismo elastico delle pulsioni, dobbiamo probabilmente individuare la causa delle scissioni nel soggetto. Queste scissioni sono modi d’essere e modi di pensare. Il soggetto tenta di cucire le proprie lacerazioni, e coltiva il progetto impossibile di una coincidenza con se stesso; ma le pulsioni, e le passioni, lo trascinano oltre i propri confini.
Alcune opere di Tolstoj vengono qui utilizzate per esemplificare il rapporto tra i registri lacaniani (immaginario, simbolico, reale): rapporto di intreccio e di conflitto, possibilità di inclusione paradossale. L’amore si rivela una  miscela instabile, eterogenea, anche nella sua forma media. Le forme estreme ripropongono la sudditanza a das Ding, la Cosa, l’esteriorità intima del soggetto.
description: ENTHYMEMA, No 2 (2010)
Synthesis of porphyrins, chlorins and bacteriochlorins by chemical modifications of chlorophyll a
Creators: name: Ma, Lifu
Publisher: name: University of British Columbia
Year: 2009

description: The goal of this project was to synthesize new porphyrins, chlorins and bacteriochlorins via chemical modifications of chlorophyll a so that new chemistry and applications of chlorophyll a and its related derivatives could be developed. A magnesium-free yet stable derivative of chlorophyll a, 7, isolated from the blue alga Spirulina maxima, was employed as the common intermediate in this work. As the first objective, new methods of asymmetric hydroxylation and regioselective oxidation of chlorophyll derivatives were successfully developed. Stereoselective synthesis of natural antioxidative chlorins 81, 82(S), 82(R), 83(R), 84 and 102, isolated from marine metabolites, was performed in a short and effective way. This biomimetic synthetic approach helped to elucidate the possible biogenetic evolution of these antioxidative chlorins from chlorophyll a. The second objective of this work was to design a method to convert chiorin 112 into porphyrin 114. A novel and effective acid-catalyzed tautomerization reaction was discovered and optimized, which has provided a new view on the migration of hydrogens in the saturated ring IV to the exocyclic ring V. The porphyrins so produced were used as intermediates for the further preparation of chlorophyll related petroporphyrins and regiochemically-pure benzoporphyrin derivatives (BPD5). Making use of the aforementioned tetrapyrrolic materials, the third objective of this work was to develop new photosensitizers for photodynamic therapy of tumors. New monovinylporphyrins and an [A,C]-divinylporphyrin 147 were synthesized. Diels-Alder reaction of these (di)vinylporphyrins with dimethyl acetylenedicarboxylate (DMAD) afforded new regiochemically-pure BPDs 125 and 141 and dibenzoporphyrin derivative 165. These new sensitizers have characteristics that meet or exceed the promising chemical features of benzoporphyrin derivative monoacid ring A (BPDMA), a second generation sensitizer in Phase-TI clinical trials. The final objective of this work was to exploit the nucleophilic behaviour of the bicyclic amidines, l,8-diazabicyclo[5.4.O]undec-7-ene (DBU) and 1,5-diazabicyclo- [4.3.O]non-5-ene (DBN). Two reactions were examined. Firstly, DBU acting as a difunctional nucleophile quantitatively reacted with DMAD to afford a fused tricyclic derivative 176. Secondly, 7, a weak electrophile which alone does not electrophilically react with DBU or DBN, has reacted, through catalytic activation by Lewis acids, with nucleophilic DBU and DBN to form chlorin e₆ amides 185 and 186. These results have brought about further understanding of the nucleophilicity as well as the basicity of these common organic bases. [chemical compound diagrams]
Bracken Fern Poisoning in Animals
Creators: name: Navjot Singh Thakur 1,*, Ensha Lomiya M.A.1, Chand1, Govind Garg2, Kavitha K3
Publisher: name: The Science world a Monthly e magazine
Year: 2023

description:  

The most prevalent poisonous plant species found in temperate and subtropical climates is bracken fern. Although young plants are said to be more toxic than older ones, plant material as a whole is typically toxic. Various active principles present in it have the potential to cause disease conditions in animals. The fully characterized toxic factors of ferns include thiaminase, quercetin, aplastic anemia factor, and hematuria factor. Among these, quercetin is carcinogenic; long-term ingestion of bracken fern has been linked to bladder tumours. Bone marrow tissue is depressed by the fern poison. Most impacted is the thrombocytic count. Hemorrhages, which are typically located on the outside of the heart and occasionally in the kidney but more frequently in the intestines, are the most common findings in cases of simple fern poisoning.
Additional file 3 of On the use of whole-genome sequence data for across-breed genomic prediction and fine-scale mapping of QTL
Creators: name: Meuwissen, Theo
name: Berg, Irene Van Den
name: Goddard, Mike
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Figure S9. Fine scale map of the posterior probabilities of the SNPs that affect fat percentage in the neighborhood of the fat percentage QTL on BTA2 shown in Figure S1.1. The blue bar denotes the 95% credibility interval for the QTL, and the red dot the position of the COJO SNP detected by [24]. Figure S10. Fine scale map of the posterior probabilities of the SNPs for affecting fat percentage in the neighborhood of the fat percentage QTL on BTA5 shown in Fig. 2. The blue bar denotes the 95% credibility interval for the QTL, and the red dot the position of the COJO SNP detected by [24]. Figure S11. Fine scale map of the posterior probabilities of the SNPs for affecting fat percentage in the neighborhood of the fat percentage QTL on BTA11 shown in Figure S12. The blue bar denotes the 95% credibility interval for the QTL, and the red dot the position of the COJO SNP detected by [24]. Figure S12. Fine scale map of the posterior probabilities of the SNPs for affecting fat percentage in the neighborhood of DGAT1 on BTA14 shown in Figure S1.3. The blue bar denotes the 95% credibility interval for the QTL, and the red dots denote the positions of two COJO SNPs detected by [24].
Η επίδραση του green brand positioning στην πρόθεση για την αγορά ενός οικολογικού προϊόντος.:
Creators: name: Δακανάλης, Ιωάννης Μύρωνος
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Αειφορία
Πράσινη μάρκα
Πράσινη τοποθέτηση προϊόντος
Sustainability
Green Brand
Green Brand Positioning

description: Στόχος της παρούσας διπλωματικής εργασίας είναι να καταγράψει και να ερευνήσει ένα ιδιαίτερο κομμάτι της νέας τάσης του Marketing η οποία έχει έρθει στο προσκήνιο περισσότερο έντονα την τελευταία δεκαετία. Η νέα αυτή τάση είναι το Green Marketing. Οι έννοιες της αειφορίας (sustainability) και της εταιρικής κοινωνικής ευθύνης (Corporate Social Responsibility) έχουν γίνει τις τελευταίες δεκαετίες πεδίο μεγάλων και έντονων αντιπαραθέσεων και κατ’ επέκταση ανταγωνισμού, δεδομένης της όλο και μεγαλύτερης οικολογικής ευαισθητοποίησης του καταναλωτικού κοινού. Η ανάλυση θα συνεχιστεί με τον τομέα του Branding και πιο συγκεκριμένα τα Green Brands και θα ολοκληρωθεί με την έρευνα για την διερεύνηση της πρόθεσης των καταναλωτών να αγοράσουν ένα οικολογικό προϊόν, μίας μη ερευνημένης έως σήμερα κατηγορίας προϊόντος (απορρυπαντικά), σε μία ανεπτυγμένη χώρα (Βέλγιο), υπό την επίδραση του Green Brand Positioning (τοποθέτηση πράσινου προϊόντος). Δεδομένης της ελάχιστης έρευνας που έχει διεξαχθεί για την κατανόηση της αποτελεσματικότητας του Green Brand Positioning και του Green Brand Knowledge για την επίδρασή τους στο Attitude towards Green Brand και στο Green Purchase Intention, η έρευνα αυτή, πρότεινε ότι το Green Brand Positioning και το Green Brand Knowledge των καταναλωτών, σχετίζονται θετικά με το Attitude towards Green Brand καθώς και με το Green Purchase Intention.
description: The purpose of the current paper is to make known, analyze and research a special part of the new trend in marketing, which intensively came forward over the last decade. This new trend is Green Marketing. The concepts of sustainability and corporate social responsibility have been on the spot over the last years, due to the growing environmental awareness of consumers that resulted an intense competition among companies. The analysis will then cover the field of Branding and more precisely the theory of Green branding. Finally the paper will close with the research over Green Brand Positioning and the customer’s green purchase intention, which has as goal to find if there are positive relations between Green Brand Positioning, Green Brand knowledge and Attitude towards Green Brand and Green Purchase Intention. This paper argued that the Green Brand Positioning and the Green Brand knowledge are positively related with the Attitude towards Green Brand and the Green Purchase intention.
Η διαπολιτισμικότητα στα σχολικά εγχειρίδια Θρησκευτικών του δημοτικού σχολείου
Creators: name: Κανελλόπουλος, Δημήτρης
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: In a society that has evolved to multicultural, like the Greek society, the harmonious coexistence of different nationalities or religions is paramount for creative initiatives. The subject of religious studies, integrated, in the school syllabus, can act as a foundation for shaping consciousness that are inspired by global ideals and for striving for world detente and peace. This study examines the concept of intercultural relations in the textbooks of the elementary schools. Through a through research the projection of peaceful coexistence of the various peoples was pursued, the exchange of cultural elements and the relationship of the Orthodox Church with the other Christian religions. At the same time it was studied whether Christianity is presented as the only source of truth and wisdom in relation to other religions, whether emphasis is given to human rights and finally whether issues that are suitable to the concerns and the interests of children are presented. The study is concluded with proposals for corrective interventions.
description: Παιδαγωγική Επιθεώρηση, Vol. 41 (2006)
U-rank: Utility-oriented Learning to Rank with Implicit Feedback
Creators: name: Dai, Xinyi
name: Hou, Jiawei
name: Liu, Qing
name: Xi, Yunjia
name: Tang, Ruiming
name: Zhang, Weinan
name: He, Xiuqiang
name: Wang, Jun
name: Yu, Yong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Learning to rank with implicit feedback is one of the most important tasks in many real-world information systems where the objective is some specific utility, e.g., clicks and revenue. However, we point out that existing methods based on probabilistic ranking principle do not necessarily achieve the highest utility. To this end, we propose a novel ranking framework called U-rank that directly optimizes the expected utility of the ranking list. With a position-aware deep click-through rate prediction model, we address the attention bias considering both query-level and item-level features. Due to the item-specific attention bias modeling, the optimization for expected utility corresponds to a maximum weight matching on the item-position bipartite graph. We base the optimization of this objective in an efficient Lambdaloss framework, which is supported by both theoretical and empirical analysis. We conduct extensive experiments for both web search and recommender systems over three benchmark datasets and two proprietary datasets, where the performance gain of U-rank over state-of-the-arts is demonstrated. Moreover, our proposed U-rank has been deployed on a large-scale commercial recommender and a large improvement over the production baseline has been observed in an online A/B testing.
Conservation of Angular Momentum in the Elastic Medium with Spins
Creators: name: Garanin, Dmitry A.
name: Chudnovsky, Eugene M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Exact conservation of the angular momentum is worked out for an elastic medium with spins. The intrinsic anharmonicity of the elastic theory is shown to be crucial for conserving the total momentum. As a result, any spin-lattice dynamics inevitably involves multiphonon processes and interaction between phonons. This makes transitions between spin states in a solid fundamentally different from transitions between atomic states in vacuum governed by linear electrodynamics. Consequences for using solid-state spins as qubits are discussed.
description: 4 pages, 1 figure
Gas Dynamic Virtual Nozzle for Generation of Microscopic Droplet Streams
Creators: name: DePonte, D. P.
name: Weierstall, U.
name: Starodub, D.
name: Schmidt, K.
name: Spence, J. C. H.
name: Doak, R. B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: As shown by Ganan-Calvo and co-workers, a free liquid jet can be compressed in iameter through gas-dynamic forces exerted by a co-flowing gas, obviating the need for a solid nozzle to form a microscopic liquid jet and thereby alleviating the clogging problems that plague conventional droplet sources of small diameter. We describe in this paper a novel form of droplet beam source based on this principle. The source is miniature, robust, dependable, easily fabricated, and eminently suitable for delivery of microscopic liquid droplets, including hydrated biological samples, into vacuum for analysis using vacuum instrumentation. Monodisperse, single file droplet streams are generated by triggering the device with a piezoelectric actuator. The device is essentially immune to clogging.
Considerazioni mimetiche su Il perturbante (Das Unheimliche)
Creators: name: Antonelli, Emanuele
Publisher: name: Università degli Studi di Milano
Year: 2010
Subjects: Unheimlich; perturbante; teoria mimetica; crisi differenziale; temporalità; Girard; Freud

description: Si affronta una revisione della categoria psicanalitica del perturbante, con attenzione alla genesi della nozione nell’opera di Freud. Si propone quindi un’ipotesi di lettura, mediante applicazione del paradigma offerto dalla teoria mimetica di René Girard, al fine di rivedere le fondamenta antropologiche dell’esperienza codificata nel testo freudiano. Attraverso un’analisi etimologica del lemma italiano, si discute l’opportunità delle critiche rivolte alla traduzione originale, mettendo anzi in luce la complessità semantica di tale soluzione e le potenzialità esplicative che essa aggiunge alla già ampia, e nota, estensione del lemma tedesco. Con riferimento alla filosofia della storia di matrice girardiana, si mette a fuoco il ruolo della temporalità sia dal punto di vista della genesi della determinazione analitica, sia dal punto di vista delle condizioni di possibilità storiche dell’esperienza in esame.
description: ENTHYMEMA, No 2 (2010)
Στρατηγικές διαφοροποίησης της διδασκαλίας στη σχολική τάξη
Creators: name: Ιωαννίδου-Κουτσελίνη, Μαίρη
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: The issue of differentiating between teaching and learning is currently one of the most crucial issues not only in teaching theory but also concerning the various approaches aiming at developing more efficient teaching of mixed ability classes. The swing from teaching/delivering to learning/production of knowledge is based on the process of differentiation of leaching and learning, on the interactive construction of knowledge and on the processes of meta-cognitive development of students, issues which arc examined in this paper.
description: Παιδαγωγική Επιθεώρηση, Vol. 41 (2006)
Training Deep Neural Networks with Constrained Learning Parameters
Creators: name: Date, Prasanna
name: Carothers, Christopher D.
name: Mitchell, John E.
name: Hendler, James A.
name: Magdon-Ismail, Malik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: I.2.6
subject: 68T07, 90C27

description: Today's deep learning models are primarily trained on CPUs and GPUs. Although these models tend to have low error, they consume high power and utilize large amount of memory owing to double precision floating point learning parameters. Beyond the Moore's law, a significant portion of deep learning tasks would run on edge computing systems, which will form an indispensable part of the entire computation fabric. Subsequently, training deep learning models for such systems will have to be tailored and adopted to generate models that have the following desirable characteristics: low error, low memory, and low power. We believe that deep neural networks (DNNs), where learning parameters are constrained to have a set of finite discrete values, running on neuromorphic computing systems would be instrumental for intelligent edge computing systems having these desirable characteristics. To this extent, we propose the Combinatorial Neural Network Training Algorithm (CoNNTrA), that leverages a coordinate gradient descent-based approach for training deep learning models with finite discrete learning parameters. Next, we elaborate on the theoretical underpinnings and evaluate the computational complexity of CoNNTrA. As a proof of concept, we use CoNNTrA to train deep learning models with ternary learning parameters on the MNIST, Iris and ImageNet data sets and compare their performance to the same models trained using Backpropagation. We use following performance metrics for the comparison: (i) Training error; (ii) Validation error; (iii) Memory usage; and (iv) Training time. Our results indicate that CoNNTrA models use 32x less memory and have errors at par with the Backpropagation models.