cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Radiative B decay spectrum: DGE at NNLO
Creators: name: Andersen, Jeppe R.
name: Gardi, Einan
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the differential B -> X_s gamma decay width in the Standard Model as a function of the photon energy using Dressed Gluon Exponentiation (DGE). The resummed spectrum is matched with the fixed-order expansion, making use of the next-to-next-to-leading order (NNLO) results for the matrix element of the magnetic dipole interaction O_7 and NLO ones for other operators in the effective Weak Hamiltonian. We develop a new technique to implement constraints on the analytic structure of the Sudakov factor in moment space. This improves the behavior of the resummed spectrum away from the Sudakov region. We also derive an analytic expression for the Borel transform of the perturbative series for the O_7 spectrum in the large-beta_0 limit. Using this example we demonstrate that exponentiation in moment space is necessary for the calculation of the spectrum for E_gamma > 2 GeV. Finally, we investigate numerically the relation between renormalons, power corrections and support properties. We present predictions for the branching fraction and the first few spectral moments as a function of a cut E_gamma>E_0 and estimate the theoretical uncertainty.
description: 57 pages, v2: minor corrections. Version published in JHEP
I.Lock_RESEARCH DIARY_Explicating Relationships_Systematic Review
Creators: name: I.J. Lock
Publisher: name: University of Amsterdam / Amsterdam University of Applied Sciences
Year: 2019
Subjects: Social Science

description: This is the research diary documenting the process of searching for the systematic review, including considerations on changes in searches, analysis, and eligibility. It contains the authors' thoughts and considerations during the research process and is thus not written or edited in academic style.
Ο ρόλος του γένους της προσωπικότητας της μάρκας του καταναλωτή: Ποιοτική έρευνα για τη λήψη αγοραστικών αποφάσεων προϊόντων υψηλής και χαμηλής ανάμιξης:
Creators: name: Δωροκίδου, Ισιδώρα Αναστασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Ταυτότητα της μάρκας
Προσωπικότητα της μάρκας
Ανθρωπομορφισμός
Το γένος της μάρκας
Προϊόντα υψηλής και χαμηλής ανάμιξης
Brand identity
Brand personality
Anthropomorphism
Brand gender
Products of high and low involvement

description: Η παρούσα διπλωματική εργασία ασχολείται με τη διεξαγωγή ποιοτικής έρευνας για τη μελέτη της συμπεριφοράς του καταναλωτή κατά τη διαδικασία λήψης αγοραστικής απόφασης. Ειδικότερα, σκοπός της έρευνας είναι ο προσδιορισμός του γένους της προσωπικότητας της μάρκας και της προσωπικότητας του καταναλωτή, ο έλεγχος του βαθμού ταύτισης μεταξύ τους, καθώς και ο τρόπος με τον οποίο αυτά επηρεάζουν τη λήψη της αγοραστικής απόφασης στην περίπτωση των προϊόντων υψηλής και χαμηλής ανάμιξης. Αρχικά, γίνεται μια βιβλιογραφική ανασκόπηση για τον τρόπο με τον οποίο καταναλώνουν οι άνθρωποι και αποσαφηνίζονται οι έννοιες της ταυτότητας και της προσωπικότητα της μάρκας. Στη συνέχεια, παρουσιάζεται η ποιοτική μεθοδολογία έρευνας και τα χαρακτηριστικά της. Τέλος, στο δεύτερο τμήμα της εργασίας, αναλύεται η οργάνωση και η υλοποίηση της ερευνητικής διαδικασίας με τη χρήση των ποιοτικών συνεντεύξεων και παρατίθενται τα αποτελέσματα που προέκυψαν.
description: The present thesis concerns qualitative research for consumer behavior in making purchasing decisions. In particular, the aim of the investigation is to identify the personality gender of the brand and the personality gender of the consumer, check the degree of matching between them, and define the way in which these two influence the purchasing decision in the case of products of high and low involvement. Initially, the first part of the study contains the literature review about the way in which people consume and the clarification of the meanings of brand identity and brand personality. Then, the qualitative research methodology and its characteristics are presented. Finally, the second part of this study contains the designing of the research process and the implementation of the survey using qualitative interviews and presents the results generated.
A non-stationary model for catalytic converters with cylindrical geometry
Creators: name: Hoernel, J. -D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35M10, 35K65, 35Q80

description: We prove some existence and uniqueness results and some qualitative properties for the solution of a system modelling the catalytic conversion in a cylinder. This model couples parabolic partial differential equations posed in a cylindrical domain and on its boundary.
Bounds of some real (complex) solution of a finite system of polynomial equations with rational coefficients
Creators: name: Tyszka, Apoloniusz
Publisher: name: arXiv
Year: 2007
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03B30, 12D99, 12L12, 14P05, 15A06, 26C10

description: We discuss two conjectures. (I) For each x_1,...,x_n \in R (C) there exist y_1,...,y_n \in R (C) such that \forall i \in {1,...,n} |y_i| \leq 2^{2^{n-2}} \forall i \in {1,...,n} (x_i=1 \Rightarrow y_i=1) \forall i,j,k \in {1,...,n} (x_i+x_j=x_k \Rightarrow y_i+y_j=y_k) \forall i,j,k \in {1,...,n} (x_i \cdot x_j=x_k \Rightarrow y_i \cdot y_j=y_k) (II) Let G be an additive subgroup of C. Then for each x_1,...,x_n \in G there exist y_1,...,y_n \in G \cap Q such that \forall i \in {1,...,n} |y_i| \leq 2^{n-1} \forall i \in {1,...,n} (x_i=1 \Rightarrow y_i=1) \forall i,j,k \in {1,...,n} (x_i+x_j=x_k \Rightarrow y_i+y_j=y_k)
description: LaTeX2e, 28 pages, a shortened and revised version will appear in Mathematical Logic Quarterly 56 (2010), no.2, under the title ``Two conjectures on the arithmetic in R and C''
Localized and Distributed Representations of Person Knowledge for Faces
Creators: name: Zarrar Shehzad
name: JohnMark Taylor
name: McCarthy, Gregory
Publisher: name: Zenodo
Year: 2019
Subjects: anterior temporal lobe
fusiform face area
semantic information
classification
person knowledge
face processing

description: This file contains the supplementary materials only. Abstract: Modular neural models of face processing posit that face-associated person-knowledge is localized in, or accessed through, the ventral anterior temporal lobe (vATL). However, some studies have suggested that person-knowledge is more widely distributed within a larger face-processing network that includes the mid-fusiform gyrus (‘fusiform face area’). Here, we conducted an fMRI study to distinguish whether person-knowledge is localized or distributed by comparing brain responses evoked by synthetic faces, for which participants had learned person-knowledge (biographical facts) and faces for which the subjects had learned only physical facts. After extensive training, participants were cued to recall a particular biographical or physical fact about the upcoming face. In an alternate passive-viewing task, participants were shown the same faces but were not cued to recall biographical or physical facts. Classification analyses (MVPA) were performed on several a priori chosen face-selective regions (ROIs) in the ventral temporal cortex. Within each ROI tested in isolation, MVPA discriminated faces associated with person-knowledge from faces only associated with physical facts. This result is consistent with a distributed model for person-knowledge. However, when tested in a single model to separate shared and unique information, unique information was limited to the left mid-fusiform and vATL posterior (vATL-p) ROIs. Moreover, the feature weights from these two areas showed that only left vATL-p was specialized for processing biographical facts. This latter result was obtained only when these biographical facts were explicitly retrieved in the cueing task. Thus, our results indicate that the left vATL-p represents explicit recall of face-associated person-knowledge.
Primary sludge fermentation using a pilot-scale mainstream fermenter to enhance biological phosphorus removal
Creators: name: Atherton, Heather
Publisher: name: University of British Columbia
Year: 2009

description: Research was undertaken to assess the feasibility of using a mainstream primary sludge fermenter to produce simple carbon compounds to enhance biological phosphorus removal from wastewater. A mainstream fermenter, which consisted of a complete mix tank followed by a thickener with solids recycle, was constructed and incorporated into the biological nutrient removal process train of the UBC Pilot Wastewater Treatment Plant. The mainstream fermenter was operated for a period of one year to investigate the influence of hydraulic retention time (HRT) and environmental factors on process operation and short chain carbon production. The mainstream fermenter was operated at HRTs of 2.2, 3.2 and 4.3 hours. The HRT of the mainstream fermenter was observed to influence the production of volatile fatty acid (VFA); an increase in HRT resulted in an increase in net production of VFA. Individual acid formation in the mainstream fermenter was found not to be influenced by fermenter HRT. The performance of the mainstream fermenter operating at an HRT of 4.3 hours was equal to that of a side-stream static fermenter or a complete mix fermenter but below that of a side-stream separate complete mix/thickener fermenter. The quantity of simple carbon compounds produced in the mainstream fermenter while operating at an HRT of 4.3 hours combined with that found in the influent sewage were sufficient to stimulate good biological phosphorus removal at the UBC Pilot Wastewater Treatment Plant. Fermenter HRT had little affect on the quantity of soluble COD produced in the mainstream fermenter nor the portion of soluble COD that existed in the form of VFA. There was little change in the concentration of soluble COD between the mainstream fermenter influent and effluent suggesting hydrolysis of particulate organic matter did not readily occur in the mainstream fermenter. Nevertheless, the VFA fraction of soluble COD was significantly higher in the mainstream fermenter effluent than the raw influent indicating there was a conversion of soluble COD to VFA in the mainstream fermenter. The configuration of the mainstream fermenter did not allow for accurate control of solids retention time (SRT). However, a stable biomass inventory was quickly achieved and maintained without purposeful wasting. The steady-state level of biomass was dependent upon the length of HRT; longer HRTs resulted in lower biomass concentrations. Seasonal variations did not significantly affect the operation of the mainstream fermenter.
Existence of multiple noise-induced transitions in a Lasota-Mackey map
Creators: name: Chihara, Takumi
name: Sato, Yuzuru
name: Nisoli, Isaia
name: Galatolo, Stefano
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We prove the existence of multiple noise-induced transitions in the Lasota-Mackey map, which is a class of one dimensional random dynamical system with additive noise. The result is achieved by the help of rigorous computer assisted estimates. We first approximate the stationary distribution of the random dynamical system and then compute certified error intervals for the Lyapunov exponent. We find that the sign of the Lyapunov exponent changes at least three times when increasing the noise amplitude. We also show numerical evidence that the standard non-rigorous numerical approximation by finite-time Lyapunov exponent is valid with our model for a sufficiently large number of iterations. Our method is expected to work for a broad class of nonlinear stochastic phenomena.
description: 9 pages, 6 figures
Οι ανακοπές του Κ.Ε.Δ.Ε.:
Creators: name: Παπαγιάννη, Μαριάννα Λαμπρινού
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Κ.Ε.Δ.Ε.
Ανακοπές
Δημοσιονομικό
KEDE
Caveats
Financial law

description: Η ανακοπή είναι ένα ένδικο μέσο, το οποίο αποτελεί σύμμαχο του πολίτη, όταν η διοικητική εκτέλεση στρέφεται με αναγκαστικά μέτρα κατά της περιουσίας του. Το ένδικο αυτό μέσο προβλεπόταν στο άρθρο 73 επ. του Κ.Ε.Δ.Ε., ενώ πλέον τα ζητήματα που προκύπτουν από τη διαδικασία είσπραξης των δημοσίων εσόδων, των οποίων η απαίτηση προέρχεται από σχέση δημοσίου δικαίου, ρυθμίζονται από τον ΚΔΔ. Στην παρούσα εργασία εξετάζουμε τις προϋποθέσεις άσκησης της ανακοπής, τη σχέση των δύο νομοθετημάτων του Κ.Ε.Δ.Ε. και του ΚΔΔ, τη νομική φύση του ενδίκου βοηθήματος της ανακοπής του Κ.Ε.Δ.Ε., την έκταση του ελέγχου που ασκείται με την ανακοπή και θα προσπαθήσουμε να προβάλλουμε τις απαντήσεις που έχει δώσει κατά καιρούς η νομολογία και η θεωρία στα διάφορα ζητήματα που αναφύονται κατά την εφαρμογή των δύο νομοθετημάτων. Αξίζει να επισημάνουμε, πως σε αυτή την εργασία εξετάζουμε τις ανακοπές που εκδικάζονται στα διοικητικά δικαστήρια με βάση τους κανόνες του ΚΔΔ, διότι κινούμαστε στα πλαίσια του Δημοσιονομικού Δικαίου.
description: A caveat is a legal remedy, which stands as an ally for a citizen in order to prevent an administrative obligatory accomplishment against his property. This particular legal remedy was envisaged by the article 73 of K.E.D.E. et seq, whilst nowadays most issues that derive from the process of the Collection of Public Revenue are regulated by KDD. Current dissertation examines the conditions for the application of a caveat, the relationship between these two statutes of K.E.D.E. and KDD, the legal nature of this (remedial action of) caveat of K.E.D.E., the extent of the control that is exerted by means of a caveat and tries to present the responses that case law and theory have occasionally given to the various issues that have arisen during the implementation of the these two statutes. It should be noted, that this dissertation examines the caveats which were tried in an administrative court under the rules of the KDD, since it (this dissertation) lies in the limits of Financial Law.
Self-consistent adiabatic inspiral and transition motion
Creators: name: Compère, Geoffrey
name: Küchler, Lorenzo
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The transition motion of a point particle around the last stable orbit of Kerr is described at leading order in the transition-timescale expansion. Taking systematically into account all self-force effects, we prove that the transition motion is still described by the Painlevé transcendent equation of the first kind. Using an asymptotically matched expansions scheme, we consistently match the quasi-circular adiabatic inspiral with the transition motion. The matching requires us to take into account the secular change of angular velocity due to radiation reaction during the adiabatic inspiral.
description: Matches the Erratum version in Physical Review Letters, 6 pages
STM images of sub-surface Mn atoms in GaAs: evidence of hybridization of surface and impurity states
Creators: name: Jancu, J. -M.
name: Girard, J. -Ch.
name: Nestoklon, M.
name: Lemaitre, A.
name: Glas, F.
name: Wang, Z. Z.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We prove that scanning tunneling microscopy (STM) images of sub-surface Mn atoms in GaAs are formed by hybridization of the impurity state with intrinsic surface states. They cannot be interpreted in terms of bulk-impurity wavefunction imaging. High atomic resolution images obtained using a low-temperature apparatus are compared with advanced, parameter-free tight-binding simulations accounting for both the buckled (110) surface and vacuum electronic properties.
Calculating DMFT forces in ab-initio ultrasoft pseudopotential formalism
Creators: name: Plekhanov, Evgeny
name: Bonini, Nicola
name: Weber, Cedric
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this paper, we show how to calculate analytical atomic forces within self-consistent density functional theory + dynamical mean-field theory (DFT+DMFT) approach in the case when ultra-soft or norm-conserving pseudopotentials are used. We show how to treat the non-local projection terms arising within the pseudopotential formalism and circumvent the problem of non-orthogonality of the Kohn-Sham eigenvectors. Our approach is, in principle, independent of the DMFT solver employed, and here was tested with the Hubbard I solver. We benchmark our formalism by comparing against the forces calculated in Ce$_{2}$O$_{3}$ and PrO$_2$ by numerical differentiation of the total free energy, as well as by comparing the energy profiles against the numerically integrated analytical forces.
description: 12 pages, 3 figures
Περί της ουσίας και της προέλευσης της γνώσης
Creators: name: Τολιόπουλος, Νικόλαος Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Καντ
Χάϊντεγκερ
Νεοκαντιανισμός
Kant
Heidegger
Neo-Kantianism

description: Ο Ιμμανουέλ Καντ στην Κριτική του καθαρού Λόγου αναγνωρίζει δύο γνωστικές ικανότητες, την αισθητικότητα και την διάνοια. Ο άνθρωπος γνωρίζει είτε μέσω της δύναμης της διάνοιας είτε μέσω της ικανότητάς του να πάσχει από αντικείμενα, δηλαδή της δεκτικότητας. Η δεκτική ικανότητα που εξετάζεται στην υπερβατολογική αισθητική επιτρέπει ένα πλήθος ερμηνειών τόσο ως προς τον χαρακτήρα της συνείδησης όσο και ως προς εκείνον της γνώσης. Από πού προέρχεται η γνώση μας και που στηρίζεται; Ο Νεοκαντιανισμός θα επιχειρήσει να απαντήσει στο παραπάνω ερώτημα, προτείνοντας μια θεμελίωση του ενικού και δεδομένου φαινομένου της συνείδησης, εκκινώντας από το γεγονός της επιστήμης. Από την άλλη, ο Heidegger θα προτείνει μια οντολογική κρίση, η οποία θα εγκαθιδρύσει το θεμέλιο της μεταφυσικής.
description: Immanuel Kant in the Critique of Pure Reason recognizes two cognitive abilities, the sensibility and the understanding. The human knows through the force of intellect or through his ability to be suffering from objects, the receptivity. The receptive capacity who is one of the subjects of transcendental aesthetic allows a multitude of interpretations, both as to the nature of consciousness as well as to the nature of knowledge. Which is the origin of our knowledge and where is it standing? The Neo-Kantianism will try to answer in this question, suggesting a foundation for the singular phenomenon of consciousness, beginning from the fact of the science. On the other hand, Heidegger proposes an ontological crisis, which will establish the foundation of metaphysics.
Exclusive and inclusive muon pair production in collisions of relativistic nuclei
Creators: name: Hencken, K.
name: Kuraev, E. A.
name: Serbo, V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The exclusive production of one $μ^+μ^-$ pair in collisions of two ultra-relativistic nuclei is considered. We present a simple method for the calculation of the Born cross section for this process based on an improved equivalent photon approximation. We find that the Coulomb corrections to this cross section (corresponding to multi-photon exchange of the produced $μ^{\pm}$ with the nuclei) are small while the unitarity corrections (corresponding to the exchange of light-by-light blocks between nuclei) are large. This is in sharp contrast to the exclusive $e^+e^-$ pair production where the Coulomb corrections to the Born cross section are large while the unitarity corrections are small. We calculate also the cross section for the production of one $μ^+μ^-$ pair and several $e^+e^-$ pairs in the leading logarithmic approximation. Using this cross section we find that the inclusive production of $μ^+μ^-$ pair coincides in this approximation with its Born value.
description: 16 pages, 4 figures
Diversification in Session-based News Recommender Systems
Creators: name: Gharahighehi, Alireza
name: Vens, Celine
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Recommender systems are widely applied in digital platforms such as news websites to personalize services based on user preferences. In news websites most of users are anonymous and the only available data is sequences of items in anonymous sessions. Due to this, typical collaborative filtering methods, which are highly applied in many applications, are not effective in news recommendations. In this context, session-based recommenders are able to recommend next items given the sequence of previous items in the active session. Neighborhood-based session-based recommenders has been shown to be highly effective compared to more sophisticated approaches. In this study we propose scenarios to make these session-based recommender systems diversity-aware and to address the filter bubble phenomenon. The filter bubble phenomenon is a common concern in news recommendation systems and it occurs when the system narrows the information and deprives users of diverse information. The results of applying the proposed scenarios show that these diversification scenarios improve the diversity measures in these session-based recommender systems based on four news datasets.
description: Pers Ubiquit Comput (2021)
Η αξιοποίηση δημοσιογραφικών κειμένων στη διδακτική της ελληνικής ως ξένης γλώσσας: η περίπτωση των ιδιωτισμών:
Creators: name: Μαζή, Βασιλική Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: δημοσιογραφικό κείμενο
πολιτισμικά φορτισμένοι ιδιωτισμοί
σχεδιασμός διδακτικών δραστηριοτήτων
journalistic text
cultural-charged idioms
designing learning activities

description: Στόχος της παρούσας εργασίας ήταν να διερευνήσει και να παρουσιάσει τα διακριτικά χαρακτηριστικά της σημασίας των πολιτισμικά φορτισμένων ιδιωτισμών. Απέβλεπε, επίσης, στη σύνδεση του πολιτισμικού στοιχείου που είναι εγγεγραμμένο στη γλώσσα με τη διδασκαλία της ελληνικής ως ξένης γλώσσας. Η έρευνά μας στηρίχτηκε σε ένα εκτεταμένο corpus ειδησεογραφικών τίτλων, το οποίο συγκροτήθηκε από το αρχειακό υλικό εφημερίδων πανελλαδικής εμβέλειας. Στη συνέχεια έγινε η ταξινόμηση και η παρουσίαση των ιδιωτισμών που περιβάλλονται από ιδιαίτερες πολιτισμικές αξίες. Τέλος, πραγματοποιήθηκε ο σχεδιασμός του υλικού διδασκαλίας για τους διδασκόμενους την ελληνική ως δεύτερη/ξένη γλώσσα. Η εξοικείωση των διδασκομένων με τις ιδιωτισμικές φράσεις αποτελεί τόσο στόχο της διδασκαλίας, καθώς πρόκειται για λεκτικά μέσα που χρησιμοποιούνται με μεγάλη συχνότητα από τους φυσικούς ομιλητές, όσο και μέσο για την ανάπτυξη διαπολιτισμικών δεξιοτήτων. Στη δυνατότητα σχεδιασμού υλικού διδασκαλίας των ιδιωτισμών για μη φυσικούς ομιλητές έγκειται και η χρησιμότητα της παρούσας εργασίας.
description: The aim of this study was to examine and present the distinctive features of the meaning of cultural-charged idioms. Another aim was the connection of the cultural elements which are inscribed in the language to the teaching of Greek as a second/foreign language. Our research was based on an extensive corpus which was composed of titles found in nationwide newspapers. The idioms with particular cultural values were classified and presented and, finally, they were used to design teaching material for learners of Greek as a second/foreign language. The familiarization with idioms is on the one hand a target of language teaching since they are frequently used by native speakers and on the other hand a medium of developing the learners’ intercultural skills. The usefulness of this study lies in designing material for teaching idioms to non-native speakers.
Additional file 1 of Optimizing EFL learning: exploring the role of learner background factors and the nuances of their effects on intrinsic and extrinsic motivation among university students in a mixed-methods study
Creators: name: Kashefian-Naeeini, Sara
name: Shokrpour, Nasrin
name: Pakdel, Farhad
Publisher: name: figshare
Year: 2024
Subjects: subject: Space Science
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mental Health

description: Supplementary Material 1
Generation of Radio Frequency Radiation by Femtosecond Filaments
Creators: name: Garrett, Travis
name: Elle, Jennifer
name: White, Michael
name: Reid, Remington
name: Englesbe, Alexander
name: Phillips, Ryan
name: Mardahl, Peter
name: Thornton, Erin
name: Wymer, James
name: Janicek, Anna
name: Sale, Oliver
name: Schmitt-Sody, Andreas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Recent experiments have shown that femtosecond filamentation plasmas generate ultra-broadband radio frequency radiation (RF). We show that a combination of plasma dynamics is responsible for the RF: a plasma wake field develops behind the laser pulse, and this wake excites (and copropagates with) a surface wave on the plasma column. The surface wave proceeds to detach from the end of the plasma and propagates forward as the RF pulse. We have developed a four stage model of these plasma wake surface waves and find that it accurately predicts the RF from a wide range of experiments, including both 800 nm and 3.9 $μ$m laser systems.
description: 6 pages, 5 figures
Additional file 1 of Metaproteogenomics resolution of a high-CO2 aquifer community reveals a complex cellular adaptation of groundwater Gracilibacteria to a host-dependent lifestyle
Creators: name: Figueroa-Gonzalez, Perla Abigail
name: Bornemann, Till L. V.
name: Hinzke, Tjorven
name: Maaß, Sandra
name: Trautwein-Schult, Anke
name: Starke, Joern
name: Moore, Carrie J.
name: Esser, Sarah P.
name: Plewka, Julia
name: Hesse, Tobias
name: Schmidt, Torsten C.
name: Schreiber, Ulrich
name: Bor, Batbileg
name: Becher, Dörte
name: Probst, Alexander J.
Publisher: name: figshare
Year: 2024
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Supplementary Material 1.
Energy in an Expanding Universe in the Teleparallel Geometry
Creators: name: Sousa, A. A.
name: Moura, J. S.
name: Pereira, R. B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The main purpose of this paper is to explicitly verify the consistency of the energy-momentum and angular momentum tensor of the gravitational field established in the Hamiltonian structure of the Teleparallel Equivalent of General Relativity (TEGR). In order to reach these objectives, we obtained the total energy and angular momentum (matter plus gravitational field) of the closed universe of the Friedmann-Lemaitre-Robertson-Walker (FLRW). The result is compared with those obtained from the pseudotensors of Einstein and Landau-Lifshitz. We also applied the field equations (TEGR) in an expanding FLRW universe. Considering the stress energy-momentum tensor for a perfect fluid, we found a teleparallel equivalent of Friedmann equations of General Relativity (GR).
description: 19 pages, no figures. Revised in view of Referee's comments. Version to appear in the Brazilian Journal of Physics
Adversarial Shape Learning for Building Extraction in VHR Remote Sensing Images
Creators: name: Ding, Lei
name: Tang, Hao
name: Liu, Yahui
name: Shi, Yilei
name: Zhu, Xiao Xiang
name: Bruzzone, Lorenzo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Building extraction in VHR RSIs remains a challenging task due to occlusion and boundary ambiguity problems. Although conventional convolutional neural networks (CNNs) based methods are capable of exploiting local texture and context information, they fail to capture the shape patterns of buildings, which is a necessary constraint in the human recognition. To address this issue, we propose an adversarial shape learning network (ASLNet) to model the building shape patterns that improve the accuracy of building segmentation. In the proposed ASLNet, we introduce the adversarial learning strategy to explicitly model the shape constraints, as well as a CNN shape regularizer to strengthen the embedding of shape features. To assess the geometric accuracy of building segmentation results, we introduced several object-based quality assessment metrics. Experiments on two open benchmark datasets show that the proposed ASLNet improves both the pixel-based accuracy and the object-based quality measurements by a large margin. The code is available at: https://github.com/ggsDing/ASLNet
Potential for inert adjoint scalar field in SU(2) Yang-Mills thermodynamics
Creators: name: Giacosa, Francesco
name: Hofmann, Ralf
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A scalar adjoint field is introduced as a spatial average over (anti)calorons in a thermalized SU(2) Yang-Mills theory. This field is associated with the thermal ground state in the deconfining phase and acts as a background for gauge fields of trivial topology. Without invoking detailed microscopic information we study the properties of the corresponding potential, and we discuss its thermodynamical implications. We also investigate the gluon condensate at finite temperature relating it to the adjoint scalar field.
description: 9 pages, 1 figure v4: a number of small editions to the text, matches published version
title: Ductility of RC Columns confined with FRP Sheets
Creators: name: Apostolidi, Eftychia
name: Liakopoulou, Efstathia
name: Dritsos, Stephanos
name: Waldmann-Diederich, Danièle
Publisher: name: Ernst & Sohn, a Wiley brand
Year: 2024

description: Many existing structures show insufficient seismic capacity, with the lack of members' ductility being a critical factor. Aim is to manage to increase their ductility, through confinement with composite fiber reinforced polymer (FRP) sheets. In the present paper, available analytical procedures of Eurocode 8‐Part 3 (2005) and draft of 2022 and the Greek Code for Structural Interventions (CSI) of 2013 and the revision of 2022 are examined, compared together with an analytical model proposed in the literature. Analytical results of the above procedures are also compared both with available experimental data and with each other and the degree of their reliability is evaluated. The current EC8‐3 (2005), although in many cases converges quite well with the experimental data, unrealistic results are obtained for a large thickness of the confined material. This seems to be corrected in the proposed EC83 revision of 2022. The Greek CSI 2013 adopts a very simple straight‐forward analytical procedure producing the most conservative results, while the revised analytical expressions included in the 2022 version, has a better convergence with the experiments. However, for large thickness of confinement material, the ductility factor values are unrealistically high. The model proposed in the literature has the advantage of correcting the aforementioned unrealistic result.
Metastability associated with many-body explosion of eigenmode expansion coefficients
Creators: name: Mori, Takashi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Metastable states in stochastic systems are often characterized by the presence of small eigenvalues in the generator of the stochastic dynamics. We here show that metastability in many-body systems is not necessarily associated with small eigenvalues. Instead, many-body explosion of eigenmode expansion coefficients characterizes slow relaxation, which is demonstrated for two models, interacting particles in a double-well potential and the Fredrickson-Andersen model, the latter of which is a prototypical example of kinetically constrained models studied in glass and jamming transitions. Our results provide new insights into slow relaxation and metastability in many-body stochastic systems.
description: 7 pages
Recent results in relativistic heavy ion collisions: from ``a new state of matter'' to "the perfect fluid"
Creators: name: Tannenbaum, M. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Experimental Physics with Relativistic Heavy Ions dates from 1992 when a beam of 197Au of energy greater than 10A GeV/c first became available at the Alternating Gradient Synchrotron (AGS) at Brookhaven National Laboratory (BNL) soon followed in 1994 by a 208Pb beam of 158A GeV/c at the Super Proton Synchrotron (SPS) at CERN (European Center for Nuclear Research). Previous pioneering measurements at the Berkeley Bevalac in the late 1970's and early 1980's were at much lower bombarding energies (~ 1 A GeV/c) where nuclear breakup rather than particle production is the dominant inelastic process in A+A collisions. More recently, starting in 2000, the Relativistic Heavy Ion Collider (RHIC) at BNL has produced head-on collisions of two 100A GeV beams of fully stripped Au ions, corresponding to nucleon-nucleon center-of-mass energy, sqrt(sNN)=200 GeV, total c.m. energy 200A GeV. The objective of this research program is to produce nuclear matter with extreme density and temperature, possibly resulting in a state of matter where the quarks and gluons normally confined inside individual nucleons (r < 1 fm) are free to act over distances an order of magnitude larger. Progress from the period 1992 to the present will be reviewed, with reference to previous results from light ion and proton-proton collisions where appropriate. Emphasis will be placed on the measurements which formed the basis for the announcements by the two major laboratories: "A new state of matter", by CERN on Feb 10, 2000 and "The perfect fluid", by BNL on April 19, 2005.
description: 62 pages, 39 figures. Review article published in Reports on Progress in Physics on June 23, 2006. In this published version, mistakes, typographical errors, and citations have been corrected and a subsection has been added
Additional file 1 of DepActive: study protocol for a randomised controlled multicentre trial of telephone-delivered behavioural activation for the treatment of depression in older adults in primary care
Creators: name: Byström, Elin
name: Wennlöf, Björn
name: Johansson, Inger
name: Lönnberg, Lena
name: Arkkukangas, Marina
name: Pellas, Johnny
name: Damberg, Mattias
Publisher: name: figshare
Year: 2024
Subjects: Cell Biology
Neuroscience
Pharmacology
Biotechnology
Cancer
Science Policy
Mental Health

description: Supplementary Material 1. SPIRIT Checklist for Trials.
Follow the Scent: Defeating IPv6 Prefix Rotation Privacy
Creators: name: Rye, Erik C.
name: Beverly, Robert
name: claffy, kc
Publisher: name: arXiv
Year: 2021
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: IPv6's large address space allows ample freedom for choosing and assigning addresses. To improve client privacy and resist IP-based tracking, standardized techniques leverage this large address space, including privacy extensions and provider prefix rotation. Ephemeral and dynamic IPv6 addresses confound not only tracking and traffic correlation attempts, but also traditional network measurements, logging, and defense mechanisms. We show that the intended anti-tracking capability of these widely deployed mechanisms is unwittingly subverted by edge routers using legacy IPv6 addressing schemes that embed unique identifiers. We develop measurement techniques that exploit these legacy devices to make tracking such moving IPv6 clients feasible by combining intelligent search space reduction with modern high-speed active probing. Via an Internet-wide measurement campaign, we discover more than 9M affected edge routers and approximately 13k /48 prefixes employing prefix rotation in hundreds of ASes worldwide. We mount a six-week campaign to characterize the size and dynamics of these deployed IPv6 rotation pools, and demonstrate via a case study the ability to remotely track client address movements over time. We responsibly disclosed our findings to equipment manufacturers, at least one of which subsequently changed their default addressing logic.
On Ritt's decomposition Theorem in the case of finite fields
Creators: name: Gutierrez, Jaime
name: Sevilla, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: Symbolic Computation (cs.SC)
subject: Commutative Algebra (math.AC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: I.1.1; I.1.2

description: A classical theorem by Ritt states that all the complete decomposition chains of a univariate polynomial satisfying a certain tameness condition have the same length. In this paper we present our conclusions about the generalization of these theorem in the case of finite coefficient fields when the tameness condition is dropped.
description: 13 pages. v2: added comment from reader and additional references
Thermal Infrared Constraint to a Planetary Companion of Vega with the MMT Adaptive Optics System
Creators: name: Hinz, Philip M.
name: Heinze, A. N.
name: Sivanandam, Suresh
name: Miller, Douglas L.
name: Kenworthy, Matthew A.
name: Brusa, Guido
name: Freed, Melanie
name: Angel, J. R. P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Vega may have a massive companion in a wide orbit, as evidenced by structure in its cold dust debris. We have tested this hypothesis by direct imaging with adaptive optics in the M band. The observations were made with a newly commissioned thermal infrared camera, Clio, on the 6.5 MMT AO system with low-background deformable secondary. The observations constrain a planet to be less than 7 M$_J$ at the approximate position angle expected from the dust structure and at a radius $>$ 20AU (2.5 arcsec) . This result is more stringent than similar previous near-infrared observations of Vega, that achieve limits of 20 and 10 M$_J$ at separations of 7 arcsec. The higher sensitivity is due both to the more favorable contrast of gas giant planets at M band and to the higher Strehl and more stable point spread function at longer wavelengths. Future L' or M band observations could provide a powerful approach for wide separation planet detection, especially for cooler, and thus older or less massive planets. The natural best targets are nearby stars where planets in the range of 5-15 M$_J$ and as old as several Gyr are expected to be detectable with this technique.
description: accepted to ApJ June 6, 2006
Μελέτη της ανάπτυξης των φυκών σε ορυζώνες και η επίδραση των φυκών στη γονιμότητα του εδάφους:
Creators: name: Κουκούλη, Σωτηρία Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Φύκη
Ορυζώνες
Γονιμότητα εδάφους
Algae
Rice fields
Soil fertility

description: Σκοπός της παρούσας διατριβής ήταν η μελέτη της ανάπτυξης των φυκών σε έναν ορυζώνα και της επίδρασης των φυκών στη γονιμότητα του εδάφους κατά τη διάρκεια της καλλιέργειας του ρυζιού. Για τη μελέτη της ανάπτυξης των φυκών (άλγεων) σε ορυζώνες και την επίδραση των φυκών στη γονιμότητα του εδάφους, χρησιμοποιήθηκε ένας ορυζώνας του Ν. Θεσσαλονίκης. Ο ορυζώνας χωρίσθηκε σε δυο μέρη και έγιναν τρεις μεταχειρίσεις. Εξετάσαμε την ανάπτυξη της ξηρής βιομάζας των φυκών και το Ν (%), Ρ (%), K (%) και C(%) που προσλήφθηκε από τα φύκη. Στις ίδιες μεταχειρίσεις μελετήθηκε η επίδραση των φυκών στη γονιμότητα του εδάφους. Για το σκοπό αυτό μελετήθηκαν οι μεταβολές του pH, της οργανικής ουσίας, των ανταλλάξιμων κατιόντων Κ+, Να+, Ca+2, Mg+2, των ΝΟ3- και ΝΗ4+ και του διαθέσιμου Ρ του εδάφους από την έναρξη της κατάκλυσης της καλλιέργειας του ρυζιού.
description: The aim of the present thesis was the study of algal growth in a rice field and the effect of algae on soil fertility during the growing season of rice. For the study of algal growth in rice fields and the effect of algae on soil fertility, one rice field in the prefecture of Thessaloniki was used. The rice field was divided in two parts and three treatments were conducted. We examined the dry algal biomass growth and the Ν (%), Ρ (%), K (%) and C (%) uptaken by the algae. The algal effect on the soil fertility was also studied in the same treatments. For this aim the changes of pH, organic matter, exchangeable cations Κ+, Να+, Ca+2, Mg+2, of ΝΟ3- and ΝΗ4+ and of the available soil Ρ were examined from the beginning of the flooding of rice.
Durability of shotcrete rehabilitation treatments of B.C. Hydro dams
Creators: name: Heere, Roland
Publisher: name: University of British Columbia
Year: 2009

description: This thesis is about shotcrete as a repair material for concrete dams situated in the moderate climate of south western British Columbia. Work on the thesis started in summer 1993. The experimental part was finished by summer 1994. The project was done in cooperation with British Columbia Hydro and Powertech Labs Inc. A literature analysis focused on shotcrete materials and application techniques for repair purposes. Some literature was found describing long-time performance of shotcrete repairs. State of the art in shotcrete repairs includes mixes containing silica fume and steel fibers. Both the wet-mix and the dry-mix processes are capable of producing durable shotcrete. Latex is controversial as an admixture for shotcrete. Where shotcrete repairs have failed, that was frequently due to frost damage in the substrate or insufficient substrate surface preparation. BC Hydro has six dams repaired with shotcrete. Four of these dams (Stave Blind Slough,- Ruskin, Buntzen and Jordan River Diversion Dams) were examined closely. The original concrete of these dams was of marginal quality and susceptible to freeze-thaw. Repair shotcrete was resistant to local environmental situations, although shrinkage cracking and reflective cracking were observed. Shotcrete on horizontal surfaces and in concave corners had deteriorated. Most shotcrete did not achieve the specific surface and void spacings recommended in the literature for freeze-thaw resistance. Among the recommendations for repair work are: • Use 100 mm thick silica fume shotcrete with steel fibers on vertical surfaces • Use 250 mm steel fiber shotcrete on substrate concrete that will remain water saturated • Avoid shotcrete on horizontal surfaces.
$η^{(\prime)}$-meson twist-2 distribution amplitude within QCD sum rule approach and its application to the semi-leptonic decay $ D_s^+ \toη^{(\prime)}\ell^+ ν_\ell$
Creators: name: Hu, Dan-Dan
name: Fu, Hai-Bing
name: Zhong, Tao
name: Zeng, Long
name: Cheng, Wei
name: Wu, Xing-Gang
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we make a detailed discussion on the $η$ and $η'$-meson leading-twist light-cone distribution amplitude $ϕ_{2;η^{(\prime)}}(u,μ)$ by using QCD sum rules approach under the background field theory. Taking both the non-perturbative condensates up to dimension-six and NLO QCD corrections to the perturbative part, its first three moments $\langleξ^n_{2;η^{(\prime)}}\rangle|_{μ_0} $ with $n = (2,4,6)$ at initial scale $μ_0 = 1$ GeV can be determined. e.g. $\langleξ_{2;η}^2\rangle|_{μ_0} =0.231_{-0.013}^{+0.010}$, $\langleξ_{2;η}^4 \rangle|_{μ_0} =0.109_{-0.007}^{+0.007}$, and $\langleξ_{2;η}^6 \rangle|_{μ_0} =0.066_{-0.006}^{+0.006}$ for $η$-meson, $\langleξ_{2;η'}^2\rangle|_{μ_0} =0.211_{-0.017}^{+0.015}$, $\langleξ_{2;η'}^4 \rangle|_{μ_0} =0.093_{-0.009}^{+0.009}$, and $\langleξ_{2;η'}^6 \rangle|_{μ_0} =0.054_{-0.008}^{+0.008}$ for $η'$-meson. Next, we calculate $D_s\toη^{(\prime)}$ TFFs $f^{η^{(\prime)}}_+(q^2)$ within QCD light-cone sum rules approach up to NLO level. The values at large recoil region are $f^η_+(0) = 0.476_{-0.036}^{+0.040}$ and $f^{η'}_+(0) = 0.544_{-0.042}^{+0.046}$. After extrapolating TFFs to the allowable physical regions within the series expansion, we obtain the branching fractions of the semi-leptonic decay, i.e. $D_s^+\toη^{(\prime)}\ell^+ ν_\ell$, i.e. ${\cal B}(D_s^+\toη^{(\prime)} e^+ν_e)=2.346_{-0.331}^{+0.418}(0.792_{-0.118}^{+0.141})\times10^{-2}$ and ${\cal B}(D_s^+\toη^{(\prime)} μ^+ν_μ)=2.320_{-0.327}^{+0.413}(0.773_{-0.115}^{+0.138})\times10^{-2}$ for $\ell = (e, μ)$ channels respectively. And in addition to that, the mixing angle for $η-η'$ with $φ$ and ratio for the different decay channels ${\cal R}_{η'/η}^\ell$ are given, which show good agreement with the recent BESIII measurements.
description: 52 pages, 11 figures, version to be published in EPJC
kappa-deformed Spacetime From Twist
Creators: name: Bu, Jong-Geon
name: Kim, Hyeong-Chan
name: Lee, Youngone
name: Vac, Chang Hyon
name: Yee, Jae Hyung
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We twist the Hopf algebra of igl(n,R) to obtain the kappa-deformed spacetime coordinates. Coproducts of the twisted Hopf algebras are explicitly given. The kappa-deformed spacetime obtained this way satisfies the same commutation relation as that of the conventional kappa-Minkowski spacetime, but its Hopf algebra structure is different from the well known kappa-deformed Poincare algebra in that it has larger symmetry algebra than the kappa-Minkowski case. There are some physical models which consider this symmetry. Incidentally, we obtain the canonical (theta-deformed) non-commutative spacetime from canonically twisted igl(n,R) Hopf algebra.
description: revtex4, 7 pages, 1 figure, minor changes, references added
Learning in Multi-Stage Decentralized Matching Markets
Creators: name: Dai, Xiaowu
name: Jordan, Michael I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Matching markets are often organized in a multi-stage and decentralized manner. Moreover, participants in real-world matching markets often have uncertain preferences. This article develops a framework for learning optimal strategies in such settings, based on a nonparametric statistical approach and variational analysis. We propose an efficient algorithm, built upon concepts of "lower uncertainty bound" and "calibrated decentralized matching," for maximizing the participants' expected payoff. We show that there exists a welfare-versus-fairness trade-off that is characterized by the uncertainty level of acceptance. Participants will strategically act in favor of a low uncertainty level to reduce competition and increase expected payoff. We prove that participants can be better off with multi-stage matching compared to single-stage matching. We demonstrate aspects of the theoretical predictions through simulations and an experiment using real data from college admissions.
Deformation theory of objects in homotopy and derived categories II: pro-representability of the deformation functor
Creators: name: Efimov, Alexander I.
name: Lunts, Valery A.
name: Orlov, Dmitri O.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: This is the second paper in a series. In part I we developed deformation theory of objects in homotopy and derived categories of DG categories. Here we extend these (derived) deformation functors to an appropriate bicategory of artinian DG algebras and prove that these extended functors are pro-representable in a strong sense.
description: Alexander Efimov is a new co-author of this paper. New material was added: A_{\infty}-structures, Maurer-Cartan theory for A_{\infty}-algebras. This allows us to strengthen our main results on the pro-representability of pseudo-functors coDEF_{-} and DEF_{-}. We also obtain an equivalence between homotopy and derived deformation functors under weaker hypotheses