cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Organogermane chemistry : preparation of reagents useful in synthesis
Creators: name: Lemieux, René M.
Publisher: name: University of British Columbia
Year: 2009

description: This thesis is divided into three parts. The first part describes the preparation of regioisomerically pure functionalized 2-trimethylgermylalk-l-enes of general structure 26, which are useful in synthesis. The vinylgermane iodide 18, for example, has been shown in our laboratories to be a good synthetic equivalent to the but-l-ene d2,d4- and a2,d4-synthons 11 and 22, respectively. The preparation of the 2-trimethylgermylalk-l-enes of general structure 26 was accomplished via i) H2PtCl6 ,6H20 catalyzed addition of Me3GeH (53) to the carboncarbon triple bond of 1-trimethylsilylalk-l-ynes 52, and ii) treatment of the resultant product mixtures with /?-TsOH»H20 in dichloromethane. The second part delineates the new and experimentally simple preparation of MesGeLi (149) in THF solution. The novel reagent Me3GeCu»Me2S (168) was obtained by treatment of 149 with CuBr»Me2S. Me3GeCu»Me2S (168), in the presence of chlorotrimethylsilane, serves as a good reagent for the conversion of functionalized acyl chlorides of general structure 35 (X = Cl) into the acyltrimethylgermanes 37. Functionalized >S'-(pyridin-2-yl) thioesters of general structure 35 (X = ,S-(pyridin-2-yl)) also serve as good substrates for the preparation of acyltrimethylgermanes 37 with reagent 168. The acyltrimethylgermanes 37 are efficiently transformed into the 2-trimethylgermylalk-l-enes 26 via olefination with methylenetriphenylphosphorane. The third part of this thesis outlines the preparation of the novel (trimethylgermyl)- copper(I) reagents 222-225. The conjugate addition of reagents 222-225, as well as Me3GeCu»Me2S (168), to selected unsaturated carbonyl systems was investigated. The substances 229 and 234-238 were synthesized from the corresponding enones via 1,4-addition of the (trimethylgermyl)copper(I) reagents. The (E)-3-uimethylgermylalk-2-enoate 242 was prepared stereoselectively via 1,4-addition of reagents 168 or 223 onto the corresponding alk- 2-ynoate, whereas the (Z) isomer 243 was obtained predominantly when reagent 225 was employed. [Chemical Compound Diagrams]
The intrinsic reddening of the Magellanic Clouds as traced by background galaxies -- II. The Small Magellanic Cloud
Creators: name: Bell, Cameron P. M.
name: Cioni, Maria-Rosa L.
name: Wright, A. H.
name: Rubele, Stefano
name: Nidever, David L.
name: Tatton, Ben L.
name: van Loon, Jacco Th.
name: Zaritsky, Dennis
name: Choi, Yumi
name: Choudhury, Samyaday
name: Clementini, Gisella
name: de Grijs, Richard
name: Ivanov, Valentin D.
name: Majewski, Steven R.
name: Marconi, Marcella
name: Martínez-Delgado, David
name: Massana, Pol
name: Muñoz, Ricardo R.
name: Niederhofer, Florian
name: Noël, Noelia E. D.
name: Oliveira, Joana M.
name: Olsen, Knut
name: Pennock, Clara M.
name: Ripepi, V.
name: Subramanian, Smitha
name: Vivas, A. Katherina
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a map of the total intrinsic reddening across ~34 deg$^{2}$ of the Small Magellanic Cloud (SMC) derived using optical ($ugriz$) and near-infrared (IR; $YJK_{\mathrm{s}}$) spectral energy distributions (SEDs) of background galaxies. The reddening map is created using a subsample of 29,274 galaxies with low levels of intrinsic reddening based on the LePhare $χ^{2}$ minimisation SED-fitting routine. We find statistically significant enhanced levels of reddening associated with the main body of the SMC compared with regions in the outskirts [$ΔE(B-V)\simeq 0.3$ mag]. A comparison with literature reddening maps of the SMC shows that, after correcting for differences in the volume of the SMC sampled, there is good agreement between our results and maps created using young stars. In contrast, we find significant discrepancies between our results and maps created using old stars or based on longer wavelength far-IR dust emission that could stem from biased samples in the former and uncertainties in the far-IR emissivity and the optical properties of the dust grains in the latter. This study represents one of the first large-scale categorisations of extragalactic sources behind the SMC and as such we provide the LePhare outputs for our full sample of ~500,000 sources.
description: Accepted for publication in MNRAS, 13 pages, 6 figures and 4 tables. Tables 1, 3 and 4 will be available in full as Supporting Information in the online version of the article
Κοινωνικές και Περιβαλλοντικές Παράμετροι στο Δίκαιο Δημοσίων Συμβάσεων: Η Βιογραφία μιας Στρέβλωσης
Creators: name: Γιοβανοπούλου, Αφροδίτη Σωτηρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: δημόσιες συμβάσεις, δημόσια έργα
δίκαιο της Ευρωπαϊκής Ένωσης, δίκαιο ΠΟΕ, διοικητικό δίκαιο
κοινωνική πολιτική, περιβαλλοντική πολιτική
public procurement, government contracting, public purchasing
European Union law, WTO law, administrative law
secondary policies, social policy, environmental policy

description: Ο θεσμός των δημοσίων συμβάσεων αποτελεί μια ενδιαφέρουσα περίπτωση συνάντησης εθνικών, υπερεθνικών και διεθνικών οπτικών ως προς τον ιδεατό τρόπο συμπεριφοράς του δημοσίου ως αγοραστή και τελικού αποδέκτη υπηρεσιών και αγαθών. Παράλληλα, ωστόσο, αποτελεί συχνά και ένα εύχρηστο μέσο άσκησης κοινωνικής και περιβαλλοντικής πολιτικής, που στοχεύει στη διαμόρφωση αξιών και προτύπων αλλά και στην ανάπτυξη της οικονομίας και την αναδιανομή πόρων και αγαθών. Στην εργασία αυτή στόχος μας είναι να εξετάσουμε την επίδραση του δικαίου της Ευρωπαϊκής Ένωσης στη διαμόρφωση των κανόνων που ρυθμίζουν αυτές τις δύο, συχνά ασύμβατες, προσλήψεις της λειτουργίας του δημόσιου τομέα και, μέσω της οδού αυτής, να διερευνήσουμε τη νοηματοδότηση του ρόλου του κράτους στη σύγχρονη οικονομία της αγοράς, όπως γίνεται κατανοητή από το δίκαιο της Ευρωπαϊκής Ένωσης.
description: The law on public procurement can be perceived as an interesting meeting point for national, transnational and international views on the question of how state agencies should ideally behave in their capacity as purchasers and final recipients of goods and services. In the same time, it often constitutes a handy tool to pursue social and environmental policies, used to shape values, share and promote best practices as well as to help foster growth and achieve a certain degree of redistribution. This paper aims to examine the effect of EU law in the shaping of the rules that attempt to reconcile these two, often incompatible or contradictory, understandings of state function, and, in this regard, to ultimately inquire into the role of the state in today’s market economy, as the latter is currently imagined in the framework of European integration.
The N2K Consortium. VII. Atmospheric Parameters of 1907 Metal-Rich Stars: Finding Planet-Search Targets
Creators: name: Robinson, Sarah E.
name: Ammons, S. Mark
name: Kretke, Katherine A.
name: Strader, Jay
name: Wertheimer, Jeremy G.
name: Fischer, Debra A.
name: Laughlin, Gregory
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report high-precision atmospheric parameters for 1907 stars in the N2K low-resolution spectroscopic survey, designed to identify metal-rich FGK dwarfs likely to harbor detectable planets. 284 of these stars are in the ideal temperature range for planet searches, T_eff <= 6000K, and have a 10% or greater probability of hosting planets based on their metallicities. The stars in the low-resolution spectroscopic survey should eventually yield >60 new planets, including 8-9 hot Jupiters. Short-period planets have already been discovered orbiting the survey targets HIP 14801 and HD 149143.
description: Accepted for publication in Astrophysical Journal Supplements. 24 pages, including 8 figures and one table. Two more tables will appear in ApJS online edition
A Monte Carlo study of fluids with orientational degrees of freedom
Creators: name: Blair, Mark James
Publisher: name: University of British Columbia
Year: 2009

description: We have modeled an electrorheological (ER) fluid as hard-sphere particles, each with smaller hard-sphere ions constrained to roll on the sphere's inside surface. When the model E R fluid is placed in an electric field, each particle becomes polarized (due to rearrangement of the ions confined within the particle) with a dipole moment depending on both the field and interactions with its neighbors. Using NVT Monte Carlo simulations, we have shown that our model can display chain formation as seen in real ER fluids. Chaining occurred at a field where the net moment no longer varied linearly with the field. This model was extended to include particles shaped as ellipsoids of revolution. In the prolate case, slightly non-spherical particles were readily ordered by the field. In the oblate case, the induced dipole is roughly perpendicular to the symmetry axis. Oblate particles may then form a biaxial phase in an applied field. NPT and Gibbs ensemble Monte Carlo simulations were performed for spherical particles modified by an anisotropic potential of the form —4A£(<r/r)6P2(cos7). We have investigated both a soft-core model of Lennard-Jones particles and a hard-core model of hard spheres. For the soft-core model at anisotropy parameter A = 0.3, we have constructed the isotropic-nematic (IN) coexistence curve using Gibbs ensemble Monte Carlo simulations (the Gibbs method). For IN coexistence, we modified the Gibbs method so that particle exchanges were rotationally biased. For the hard-core model, we have determined the isotropic fluid-nematic coexistence curve using the Gibbs method. No gas-isotropic liquid transition was found for this hard-core model. Gibbs ensemble Monte Carlo simulations were performed for a mixture of neutral and dipolar hard spheres. At fixed pressure, the coexistence curve for the demixing transition was constructed for several values of the diameter of the neutral hard spheres. We extrapolate the critical point temperature to a vanishing diameter for the neutral hard spheres. In the limit of vanishing neutral hard spheres, the demixing transition of the mixture resembles, if it exists, the gas-isotropic liquid transition for dipolar hard spheres. Our extrapolation suggests that the gas-isotropic liquid transition would occur at a very low temperature.
Notes on parafermionic QFT's with boundary interaction
Creators: name: Lukyanov, S. L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The main result of these notes is an analytical expression for the partition function of the circular brane model for arbitrary values of the topological angle. The model has important applications in condensed matter physics. It is related to the dissipative rotator (Ambegaokar-Eckern-Schon) model and describes a ``weakly blocked'' quantum dot with an infinite number of tunneling channels under a finite gate voltage bias. A numerical check of the analytical solution by means of Monte Carlo simulations has been performed recently. To derive the main result we study the so-called boundary parafermionic sine-Gordon model. The latter is of certain interest to condensed matter applications, namely as a toy model for a point junction in the multichannel quantum wire.
description: 55 pages, 6 figures
D0 measurement of the dijet azimuthal decorrelations
Creators: name: Zielinski, Marek
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present the D0 measurement of correlations in the azimuthal angle between the two largest transverse momentum jets produced in ppbar collisions at a center-of-mass energy 1.96 TeV in the central rapidity region. The results are based on an inclusive dijet event sample corresponding to an integrated luminosity of 150/pb. Data is in good agreement with next-to-leading order pQCD calculations, and with tuned Pythia, Herwig, Alpgen and Sherpa event generators.
description: 3 pages, 4 figures, to be published in proceedings of PANIC05
Nonlinear Transport Processes in Tokamak Plasmas. Part I: The Collisional Regimes
Creators: name: Sonnino, Giorgio
name: Peeters, Philippe
Publisher: name: arXiv
Year: 2008
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: An application of the thermodynamic field theory (TFT) to transport processes in L-mode tokamak plasmas is presented. The nonlinear corrections to the linear (Onsager) transport coefficients in the collisional regimes are derived. A quite encouraging result is the appearance of an asymmetry between the Pfirsch-Schlueter (P-S) ion and electron transport coefficients: the latter presents a nonlinear correction, which is absent for the ions, and makes the radial electron coefficients much larger than the former. Explicit calculations and comparisons between the neoclassical results and the TFT predictions for JET plasmas are also reported. We found that the nonlinear electron P-S transport coefficients exceed the values provided by neoclassical theory by a factor, which may be of the order 100. The nonlinear classical coefficients exceed the neoclassical ones by a factor, which may be of order 2. The expressions of the ion transport coefficients, determined by the neoclassical theory in these two regimes, remain unaltered. The low-collisional regimes i.e., the plateau and the banana regimes, are analyzed in the second part of this work.
description: 52 pages, 18 figures
A Candidate for $1^{--}$ Strangeonium Hybrid
Creators: name: Ding, Gui-Jun
name: Yan, Mu-Lin
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose that the recently observed structure at 2175MeV by the Babar Collaboration is a $1^{--}$ strangeonium hybrid, and we investigate this interpretation from both the flux tube model and the constituent gluon model. The decay patterns and decay width in the flux tube model and the constituent gluon model (for the "gluon excited" hybrid) are very similar. The tetraquark hypothesis is not favored by the available experimental data. The crucial test of our scenario is suggested, furthermore, the promising channels which can discriminate the hybrid interpretation from the tetraquark are also suggested.
description: 20 pages, 7 figures
Επίλυση Διοφαντικών Εξισώσεων και εφαρμογές στη Θεωρία Ελέγχου
Creators: name: Δαραμήλας, Χρήστος Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Διοφαντική Εξίσωση
Σταθεροποιητικός αντισταθμιστής
Κανονική συνάρτηση μεταφοράς
Diophantine equation
stabilizing compensator
proper transfer function

description: Αντικείμενο μελέτης της παρούσας εργασίας είναι η επίλυση Διοφαντικών εξισώσεων με άμεση εφαρμογή στην εύρεση και υπολογισμό σταθεροποιητικών αντισταθμιστών, τόσο για ένα σύστημα ελέγχου μίας εισόδου και μίας εξόδου, όσο και για ένα σύστημα ελέγχου, πολλών εισόδων και εξόδων, γραμμικό και χρονικά αναλλοίωτο. Η εύρεση αντισταθμιστών μελετάται επίσης και με την τεχνική της παραγοντοποίησης. Συγκεκριμένα, εξετάζουμε το πρόβλημα σταθεροποίησης γραμμικών και χρονικά αναλλοίωτων συστημάτων, τα οποία χαρακτηρίζονται από αυστηρά κανονικές ρητές συναρτήσεις μεταφοράς ή από αυστηρά κανονικούς πίνακες ρητών συναρτήσεων μεταφοράς, μέσω κανονικών (δυναμικών) αντισταθμιστών στο βρόχο της ανάδρασης χρησιμοποιώντας την Ευκλείδεια διαίρεση πολυωνύμων και την Ευκλείδεια διαίρεση πολυωνυμικών πινάκων αντίστοιχα. Αρχικά, μέσω ιστορικής αναδρομής συμπεραίνουμε ότι οι Διοφαντικές εξισώσεις είναι στην ουσία απόρροια του Ευκλειδείου Αλγορίθμου. Στη συνέχεια παραθέτουμε βασικές γνώσεις της θεωρίας αριθμών και αναπτύσσουμε τις Διοφαντικές εξισώσεις στο σύνολο των ακεραίων αριθμών. Έπειτα γενικεύουμε τη μελέτη αυτή σε πολυώνυμα και τέλος σε πολυωνυμικούς πίνακες. Επιπρόσθετα, ασχολούμαστε με ρητές συναρτήσεις που έχουν ως όρους πολυώνυμα δηλαδή με ρητές, κανονικές και-ευσταθείς συναρτήσεις, το σύνολο των οποίων αποτελεί Ευκλείδειο δακτύλιο, καθώς και με πίνακες που έχουν στοιχεία τους στο δακτύλιο αυτό.
description: Subject of this paper is to solve Diophantine equations with direct application to find and calculate stabilizing compensators, for a control system of one input and one output, as well as for a control system of multiple inputs and outputs, linear and time invariant in both cases. Finding compensators is also studied by the technique of derivatization. Specifically, we consider the problem of stabilizing linear time – invariant, control systems, characterized by strictly proper plants (transfer functions) via proper (dynamic) compensators in the feedback loop using the Euclidean division of polynomials and Euclidean division of polynomial matrices respectively. Initially, through historical retrospection we conclude that Diophantine equations is essentially the result of Euclidean Algorithm. Then, we present basic knowledge of number theory and develop the Diophantine equations to all integers. Afterwards, we generalize this study to polynomials and polynomial matrices. Additionally, we deal with rational functions that have terms as polynomials ie, proper and Ω - stable functions, all of which is an Euclidean ring, and also with matrices that have elements in this ring.
The hidden past of M92: Detection and characterization of a newly formed 17° long stellar stream using the Canada-France Imaging Survey
Creators: name: Thomas, Guillaume F.
name: Jensen, Jaclyn
name: McConnachie, Alan
name: Côté, Patrick
name: Venn, Kim
name: Longeard, Nicolas
name: Carlberg, Raymond
name: Chapman, Scott
name: Cuillandre, Jean-Charles
name: Famaey, Benoit
name: Ferrarese, Laura
name: Gwyn, Stephen
name: Hammer, François
name: Ibata, Rodrigo A.
name: Malhan, Khyati
name: Martin, Nicolas F.
name: Mei, Simona
name: Navarro, Julio F.
name: Reylé, Céline
name: Starkenburg, Else
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an analysis of the structure, kinematics and orbit of a newly found stellar stream emanating from the globular cluster M92 (NGC 6341). This stream was discovered in an improved matched-filter map of the outer Galaxy, based on a "color-color-magnitude" diagram, created using photometry from the Canada-France Imaging Survey (CFIS) and the Pan-STARRS 1 3$π$ survey (PS1). We find the stream to have a length of 17° (2.5 kpc at the distance of M92), a width dispersion of $0.29$°(42 pc) and a stellar mass of $[3.17 \pm{0.89}] \times 10^{4} $ M$_\odot$ ($10 \%$ of the stellar mass of the current main body of M92). We examine the kinematics of main sequence, red giant and blue horizontal branch stars belonging to the stream and that have proper motion measurements from the second data release of Gaia. N-body simulations suggest that the stream was likely formed very recently (during the last $\sim 500$ Myr) forcing us to question the orbital origin of this ancient, metal-poor globular cluster.
description: 14 pages, 8 figures. Accepted for publication in ApJ
Η επιμόρφωση των εκπαιδευτικών για το μάθημα της Α τάξης του Λυκείου-Ερευνητικές εργασίες: διερεύνηση απόψεων και στάσεων των επιμορφούμενων
Creators: name: Δεληγιαννίδου, Άννα Στέφανου
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: επιμόρφωση
Ερευνητική Εργασία
ποιότητα επιμόρφωσης
Training
Inquiry learning project
Training quality

description: Σκοπός της έρευνας ήταν να καταγραφούν οι απόψεις των εκπαιδευτικών που παρακολούθησαν ένα επιμορφωτικό πρόγραμμα για το μάθημα της Α τάξης του Λυκείου, Ερευνητική Εργασία. Εξετάσαμε τους όρους Ανάπτυξη Ανθρώπινου Δυναμικού, Επαγγελματική Ανάπτυξη και Επιμόρφωση και στη συνέχεια σκιαγραφήσαμε την κατάσταση που επικρατεί στη χώρα μας στον τομέα της Επιμόρφωσης. Ακόμη αναφερθήκαμε στους παράγοντες που επηρεάζουν την αποτελεσματικότητα και καθορίζουν την ποιότητα των επιμορφωτικών προγραμμάτων. Χρησιμοποιήσαμε διάφορους παράγοντες επιμόρφωσης, όπως τους επιμορφωτές, τα υλικά που χρησιμοποιήθηκαν, το χώρο, τη διάρκεια της εκπαίδευσης, τα μοντέλα επιμόρφωσης, τη μέθοδο παρουσίασης δίνοντας έμφαση στην εφαρμογή των αποτελεσμάτων της εκπαίδευσης και την ανατροφοδότηση της. Διαπιστώσαμε ότι οι παραπάνω παράγοντες επηρέασαν σε μεγάλο βαθμό την ποιότητα του συγκεκριμένου προγράμματος που παρακολούθησαν οι εκπαιδευτικοί, τους ίδιους τους εκπαιδευτικούς και το σχολείο όπου εφαρμόστηκαν τα αποτελέσματα της επιμόρφωσης.
description: The aim of the present study was to register the teacher’s opinions for a training programme about the course of 1st grade of High School, Inquiry learning project. We examined the terms Human Resource Development, professional development and Training. Then we delivated the situation in the field of Training in our country. Furthermore, we analyzed the factors that influence the effectiveness and determine the quality of training programs. We used random of factors as trainers, materials, location, training models, the method of presentation emphasizing to the learning applications and it’s feedback. We found that those factors influenced greatly the quality of the program, teachers themselves, and the school where the results of the training applied.
Hagedorn divergences and tachyon potential
Creators: name: Brigante, Mauro
name: Festuccia, Guido
name: Liu, Hong
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the critical behavior for a string theory near the Hagedorn temperature. We use the factorization of the worldsheet to isolate the Hagedorn divergences at all genera. We show that the Hagedorn divergences can be resummed by introducing double scaling limits, which smooth the divergences. The double scaling limits also allow one to extract the effective potential for the thermal scalar. For a string theory in an asymptotic anti-de Sitter (AdS) spacetime, the AdS/CFT correspondence implies that the critical Hagedorn behavior and the relation with the effective potential should also arise from the boundary Yang-Mills theory. We show that this is indeed the case. In particular we find that the free energy of a Yang-Mills theory contains ``vortex'' contributions at finite temperature. Yang-Mills Feynman diagrams with vortices can be identified with contributions from boundaries of moduli space on the string theory side.
description: 36 pages, 13 figures, uses harvmac
Time-varying individual risk attitudes over the Great Recession: A comparison of Germany and Ukraine
Creators: name: Dohmen, Thomas
name: Lehmann, Hartmut
name: Pignatti, Norberto
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: SECS-P/01 Economia politica

description: We use the panel data of the German Socio-Economic Panel (SOEP) and of the Ukrainian Longitudinal
Monitoring Survey (ULMS) to investigate whether risk attitudes have primary (exogenous)
determinants that are valid in different stages of economic development and in a different structural
context, comparing a mature capitalist economy and a transition economy. We then analyze the
stability of the risk measures over time. Between 2007 and 2012 we have the Great Recession, which
had a mild impact in the German labor market while it had a more profound impact on the Ukrainian
labor market. This enables us to investigate whether and how the crisis impacted on the risk attitudes in
the two countries. By focusing on self-employment we also investigate whether the reduced willingness
to take risks as a consequence of the Great Recession affects labor market dynamics and outcomes.
Exploring the energy-dependent radiation properties in dissipative magnetospheres with Fermi pulsars
Creators: name: Yang, Xiongbang
name: Cao, Gang
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The equatorial current sheets outside the light cylinder(LC) are thought as the promising site of the high energy emission based on the results of the recent numerical simulations. We explore the pulsar light curves and energy spectra by computing the curvature radiation based on the FIDO magnetospheres. The FIDO magnetospheres with a near force-free regime inside the LC and a finite but high conductivity outside the LC are constructed by a spectral algorithm. The pulsar high energy emission properties are explored by integrating the trajectories of the test particles under the influence of both the accelerating electric field and the curvature radiation losses. As an application, we compare the predicted energy-dependent light curves and energy spectra with those of the Crab and Vela pulsars published in Fermi 2PC catalog. We find that the observed characteristics of the light curves and energy spectra from Crab and Vela pulsars can be well reproduced by the FIDO model.
description: 11 pages, 6 figures; Accepted for publication by ApJ
Compact intense extreme-ultraviolet source
Creators: name: Major, Balázs
name: Ghafur, Omair
name: Kovács, Katalin
name: Varjú, Katalin
name: Tosa, Valer
name: Vrakking, Marc J. J.
name: Schütte, B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: High-intensity laser pulses covering the ultraviolet to terahertz spectral regions are nowadays routinely generated in a large number of laboratories. In contrast, intense extreme-ultraviolet (XUV) pulses have only been demonstrated using a small number of sources including free-electron laser facilities [1-3] and long high-harmonic generation (HHG) beamlines [4-9]. Here we demonstrate a concept for a compact intense XUV source based on HHG that is focused to an intensity of $2 \times 10^{14}$ W/cm$^2$, with a potential increase up to $10^{17}$ W/cm$^2$ in the future. Our approach uses tight focusing of the near-infrared (NIR) driving laser and minimizes the XUV virtual source size by generating harmonics several Rayleigh lengths away from the NIR focus. Accordingly, the XUV pulses can be refocused to a small beam waist radius of 600 nm, enabling the absorption of up to four XUV photons by a single Ar atom in a setup that fits on a modest (2 m) laser table. Our concept represents a straightforward approach for the generation of intense XUV pulses in many laboratories, providing novel opportunities for XUV strong-field and nonlinear optics experiments, for XUV-pump XUV-probe spectroscopy and for the coherent diffractive imaging of nanoscale structures.
description: 6 pages, 4 figures
Eta Carinae across the 2003.5 minimum: Spectroscopic Evidence for Massive Binary Interactions
Creators: name: Nielsen, K. E.
name: Corcoran, M. F.
name: Gull, T. R.
name: Hillier, D. J.
name: Hamaguchi, K.
name: Ivarsson, S.
name: Lindler, D. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have analyzed high spatial, moderate spectral resolution observations of Eta Carinae obtained with the STIS from 1998.0 to 2004.3. The spectra show prominent P-Cygni lines in H I, Fe II and He I which are complicated by blends and contamination by nebular emission and absorption along the line-of-sight toward the observer. All lines show phase and species dependent variations in emission and absorption. For most of the cycle the He I emission is blueshifted relative to the H I and Fe II P-Cygni emission lines, which are approximately centered at system velocity. The blueshifted He I absorption varies in intensity and velocity throughout the 2024 day period. We construct radial velocity curves for the absorption component of the He I and H I lines. The He I absorption shows significant radial velocity variations throughout the cycle, with a rapid change of over 200 km/s near the 2003.5 event. The H I velocity curve is similar to that of the He I absorption, though offset in phase and reduced in amplitude. We interpret the complex line profile variations in He I, H I and Fe II to be a consequence of the dynamic interaction of the dense wind of Eta Car A with the less dense, faster wind plus the radiation field of a hot companion star, Eta Car B. During most of the orbit, Eta Car B and the He+ recombination zone are on the near side of Eta Car A, producing blueshifted He I emission. He I absorption is formed in the part of the He+ zone that intersects the line-of-sight toward Eta Car. We use the variations seen in He I and the other P-Cygni lines to constrain the geometry of the orbit and the character of Eta Car B.
description: 16 pages, 18 figures
The Development Of Plant-Based Burgers Using Moringa Oleifera Protein Isolates
Creators: name: WONG, SHI ERN
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 300699
subject: Food sciences not elsewhere classified

description: This research explores how Moringa oleifera seeds can make plant-based burgers better for both you and the environment. We start by looking at how soaking these seeds can reduce a substance called tannin, which can sometimes be not so good for us. Then, we use these seeds to make something called M. oleifera protein isolates (MPI), which are super-healthy ingredients. When we add MPI to plant-based burgers, they become healthier because they have more protein. They also taste good and look nice, so we found a great way to make healthier and tastier burgers from plants!
(Phrases that need to be italicised:
1. Moringa oleifera
2. M. oleifera )
Physical and dynamical characterization of the Euphrosyne asteroid Family
Creators: name: Yang, B.
name: Hanus, J.
name: Broz, M.
name: Chrenko, O.
name: Willman, M.
name: Sevecek, P.
name: Masiero, J.
name: Kaluna, H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Euphrosyne asteroid family occupies a unique zone in orbital element space around 3.15 au and may be an important source of the low-albedo near-Earth objects. The parent body of this family may have been one of the planetesimals that delivered water and organic materials onto the growing terrestrial planets. We aim to characterize the compositional properties as well as the dynamical properties of the family. We performed a systematic study to characterize the physical properties of the Euphrosyne family members via low-resolution spectroscopy using the IRTF telescope. In addition, we performed smoothed-particle hydrodynamics (SPH) simulations and N-body simulations to investigate the collisional origin, determine a realistic velocity field, study the orbital evolution, and constrain the age of the Euphrosyne family. Our spectroscopy survey shows that the family members exhibit a tight taxonomic distribution, suggesting a homogeneous composition of the parent body. Our SPH simulations are consistent with the Euphrosyne family having formed via a reaccumulation process instead of a cratering event. Finally, our N-body simulations indicate that the age of the family is 280 Myr +180/-80 Myr, which is younger than a previous estimate.
description: 10 pages, 13 figures, accepted to be published in A&A
Το ιδίωμα της Σαρακήνας Βεντζίων (Γρεβενών): φωνητική - φωνολογία
Creators: name: Ντάγκας, Νικόλαος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Φωνητική
Φωνολογία
Νεοελληνική διαλεκτολογία
Phonetics
Phonology
Modern Greek dialectology

description: Η παρούσα εργασία έχει ως θέμα τη φωνητική και φωνολογική περιγραφή του βορείου ιδιώματος της Σαρακήνας Βεντζίων (Γρεβενών) και διαρθρώνεται σε επτά κεφάλαια. Στο εισαγωγικό κεφάλαιο: α) παρατίθενται ιστορικές πληροφορίες για την περιοχή, β) σκιαγραφείται το προφίλ του ιδιώματος, η βαλκανική του διάσταση και η σημερινή του εικόνα υπό την επίδραση της κοινής νεοελληνικής, γ) παρουσιάζεται η μεθοδολογία όσον αφορά την επιλογή των πληροφορητών, καθώς και τη συλλογή, επεξεργασία, περιγραφή και ανάλυση του διαλεκτικού υλικού. Το δεύτερο κεφάλαιο εστιάζει στην αρθρωτική φωνητική περιγραφή και ταξινόμηση των φθόγγων του ιδιώματος. Το τρίτο κεφάλαιο πραγματεύεται διεξοδικά από διαχρονική σκοπιά τις φωνητικές αλλαγές των φωνηέντων και των συμφώνων. Το τέταρτο κεφάλαιο ασχολείται με φωνητικά φαινόμενα στα όρια λέξεων, ενώ το πέμπτο αφορά τον τονισμό. Στο έκτο κεφάλαιο επιχειρείται η συγχρονική φωνολογική ανάλυση του ιδιώματος (εντοπισμός, ορισμός και ταξινόμηση των φωνημάτων) στο πλαίσιο της λειτουργικής φωνολογίας. Στο τελευταίο κεφάλαιο συνοψίζονται τα συμπεράσματα.
description: The topic of this thesis, comprising seven chapters, concerns the phonetic and phonological description of the Sarakina dialect, which is a variety of Northern Dialects of Modern Greek in the region of Ventzia-Grevena. The introductory chapter a) displays historical information about the area, b) outlines the profile of the dialect, its Balkan dimension and its current characteristics under the influence of Standard Modern Greek, c) presents the methodology regarding the selection of the informants, as well as the collection, processing, description and analysis of the dialect material. Chapter 2 focuses on the articulatory phonetic description and classification of the dialect sounds. Chapter 3 examines thoroughly the phonetic vowel and consonant changes from the diachronic point of view. Chapter 4 deals with sandhi phenomena and chapter 5 refers to stress. Chapter 6 attempts a synchronic phonological analysis (identification, definition and classification of the phonemes) within the framework of functional phonology. The conclusions are summarized in the last chapter.
MS, S and C Stars in the Infrared. Luminosities and Mass Loss Rates
Creators: name: Guandalini, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this note I present an outline of infrared (IR) photometric AGB properties, based on two samples of Galactic Long Period Variables (C- and S-type respectively). I show the various selection criteria used during the choice of the sources and describe the motivations of observing them at near- and mid-IR wavelengths. I discuss the problems encountered in estimating their luminosity and distance and motivate the methods I choose for this purpose. Properties of the luminosity functions and of the Hertzsprung-Russell (HR) diagrams obtained from the analysis are discussed. Finally, the choices made for estimating of the mass loss rates are described and preliminary results concerning them are shown.
description: 10 pages, 6 figures, contribution from the IX Torino Workshop, to be published by AIP
Computer simulation study of ferroelectric liquid crystal phases
Creators: name: Ayton, Gary Steven Douglas
Publisher: name: University of British Columbia
Year: 2009

description: Molecular dynamics and Monte Carlo simulations are used to study ferroelectric liquid crystals. The effect of molecular shape on the stability and nature of ferroelectric phases is examined. The effect of molecular flatness on the stability of uniaxial nematic liquid crystal phases is studied. Most liquid crystal molecules are elongated and have a degree of flatness. However, most models used in computer simulation of liquid crystals are axially symmetric. A series of molecular dynamics simulations, specially designed to isolate the effects of molecular flatness on liquid crystal phases, are performed. Molecular shape is approximated with a generalization of the Gaussian overlap model [ B. J. Berne and P. Pechukas, J. Chem. Phys. 56, 4213 (1972)]. The form presented here has been extended to include ellipsoidal particles with non-degenerate semi-axes. It is found that small amounts of molecular biaxiality can drive an isotropic to nematic phase transition. Simulations of randomly frozen and dynamically disordered dipolar soft spheres are used to study ferroelectric ordering in spatially amorphous materials. Systems where the dipole moment has 1, 2, and 3 components are considered. It is found that the 1 component (Ising) model has ferroelectric phases. The systems with 2 and 3 dipolar components form disordered phases at low temperatures. A ferroelectric phase diagram is constructed for oblate molecules with point dipoles embedded along the particle symmetry axes. The role of particle shape on the stability of ferroelectric liquid crystals is examined with molecular dynamics simulation. Molecular shape is modeled with the generalized Gaussian overlap. Ferroelectric phases are found in systems with weak (short-ranged) columnar correlations. Systems with long-ranged columnar order are found to be antiferroelectric. It is found that the stability of ferroelectric phase is very sensitive to details of molecular shape, and exists only in small regions of the phase diagram. A more robust model for a ferroelectric liquid crystal is developed. Monte Carlo calculations are used to examine ferroelectric order in fluids of disc-shape particles with embedded dipoles. The dipoles are uniformly distributed over a circular "patch" of finite size, placed in the central plane of the particle. It is shown that such systems may undergo spontaneous polarization to form a stable ferroelectric discotic nematic phase.
Novel heavy flavor suppression mechanisms in the QGP
Creators: name: Vitev, Ivan
name: Adil, Azfar
name: van Hees, Hendrik
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We revisit the question of the measured, unexpectedly large, heavy flavor suppression, $R_{AA}(p_T) \ll 1$, in nucleus-nucleus collisions at RHIC and compare two new theoretical approaches to the $D$- and $B$-meson quenching. In the first model, radiative energy loss, collisional energy loss and heavy quark-resonance interactions are combined to evaluate the drag and diffusion coefficients in the quark-gluon plasma and the mixed phase. These are applied in a relativistic Fokker-Planck equation to simulate the heavy $c$- and $b$-quark suppression rate and elliptic flow $v_2(p_T)$. In the second model, the fragmentation probability for heavy quarks and the medium-induced decay probability for heavy hadrons are derived. These are implemented in a set of coupled rate equations that describe the attenuation of the observable spectra from the collisional dissociation of heavy mesons in the QGP. An improved description of the non-photonic electron $R_{AA}(p_T)$ at RHIC can be obtained. In contrast to previous results, the latter approach predicts suppression of $B$-mesons comparable to that of $D$-mesons at transverse momenta as low as $p_T \sim 10$ GeV.
description: 4 pages, 4 figures. Quark Matter 2006 proceedings
Optical Magnetometry
Creators: name: Budker, D.
name: Romalis, M. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Some of the most sensitive methods of measuring magnetic fields utilize interactions of resonant light with atomic vapor. Recent developments in this vibrant field are improving magnetometers in many traditional areas such as measurement of geomagnetic anomalies and magnetic fields in space, and are opening the door to new ones, including, dynamical measurements of bio-magnetic fields, detection of nuclear magnetic resonance (NMR), magnetic-resonance imaging (MRI), inertial-rotation sensing, magnetic microscopy with cold atoms, and tests of fundamental symmetries of Nature.
description: 11 pages; 4 figures; submitted to Nature Physics
Discretization on high-dimensional domains
Creators: name: Buhmann, Martin
name: Dai, Feng
name: Niu, Yeli
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: Let $μ$ be a Borel probability measure on a compact path-connected metric space $(X, ρ)$ for which there exist constants $c,β>1$ such that $μ(B) \geq c r^β$ for every open ball $B\subset X$ of radius $r>0$. For a class of Lipschitz functions $Φ:[0,\infty)\to R$ that piecewisely lie in a finite-dimensional subspace of continuous functions, we prove under certain mild conditions on the metric $ρ$ and the measure $μ$ that for each positive integer $N\geq 2$, and each $g\in L^\infty(X, dμ)$ with $\|g\|_\infty=1$, there exist points $y_1, \ldots, y_{ N}\in X$ and real numbers $λ_1, \ldots, λ_{ N}$ such that for any $x\in X$, \begin{align*} & \left| \int_X Φ(ρ(x, y)) g(y) \,d μ(y) - \sum_{j = 1}^{ N} λ_j Φ(ρ(x, y_j)) \right| \leq C N^{- \frac{1}{2} - \frac{3}{2β}} \sqrt{\log N}, \end{align*} where the constant $C>0$ is independent of $N$ and $g$. In the case when $X$ is the unit sphere $S^d$ of $R^{d+1}$ with the ususal geodesic distance, we also prove that the constant $C$ here is independent of the dimension $d$. Our estimates are better than those obtained from the standard Monte Carlo methods, which typically yield a weaker upper bound $N^{-\frac12}\sqrt{\log N}$.
Denoising Multi-Source Weak Supervision for Neural Text Classification
Creators: name: Ren, Wendi
name: Li, Yinghao
name: Su, Hanting
name: Kartchner, David
name: Mitchell, Cassie
name: Zhang, Chao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: We study the problem of learning neural text classifiers without using any labeled data, but only easy-to-provide rules as multiple weak supervision sources. This problem is challenging because rule-induced weak labels are often noisy and incomplete. To address these two challenges, we design a label denoiser, which estimates the source reliability using a conditional soft attention mechanism and then reduces label noise by aggregating rule-annotated weak labels. The denoised pseudo labels then supervise a neural classifier to predicts soft labels for unmatched samples, which address the rule coverage issue. We evaluate our model on five benchmarks for sentiment, topic, and relation classifications. The results show that our model outperforms state-of-the-art weakly-supervised and semi-supervised methods consistently, and achieves comparable performance with fully-supervised methods even without any labeled data. Our code can be found at https://github.com/weakrules/Denoise-multi-weak-sources.
description: 16 pages, 7 figures
Data and code for: Sources of nitrous oxide emissions from agriculturally managed peatlands
Creators: name: Wang, Yuqiao
name: Leifeld, Jens
name: Calanca, Pierluigi
Publisher: name: Zenodo
Year: 2024

description: This contains the R code and all the data required to run the code used for all data analysis in the manuscript titled:

" Sources of nitrous oxide emissions from agriculturally managed peatlands" by:

Yuqiao Wang, Pierluigi Calanca, and Jens Leifeld

an article accepted for publication in: Global Change Biology.

Please check the gitlab repo yclover11/Peatland_N2O (github.com) for any updates.
The Second Catalog of Interplanetary Network Localizations of Konus Short Duration Gamma-Ray Bursts
Creators: name: Svinkin, D.
name: Hurley, K.
name: Ridnaia, A.
name: Lysenko, A.
name: Frederiks, D.
name: Golenetskii, S.
name: Tsvetkova, A.
name: Ulanov, M.
name: Kokomov, A.
name: Cline, T. L.
name: Mitrofanov, I.
name: Golovin, D.
name: Kozyrev, A.
name: Litvak, M.
name: Sanin, A.
name: Goldstein, A.
name: Briggs, M. S.
name: Wilson-Hodge, C.
name: Burns, E.
name: von Kienlin, A.
name: Zhang, X. -L.
name: Rau, A.
name: Savchenko, V.
name: Bozzo, E.
name: Ferrigno, C.
name: Barthelmy, S.
name: Cummings, J.
name: Krimm, H.
name: Palmer, D. M.
name: Tohuvavohu, A.
name: Yamaoka, K.
name: Ohno, M.
name: Fukazawa, Y.
name: Hanabata, Y.
name: Takahashi, T.
name: Tashiro, M.
name: Terada, Y.
name: Murakami, T.
name: Makishima, K.
name: Boynton, W.
name: Fellows, C. W.
name: Harshman, K. P.
name: Enos, H.
name: Starr, R.
name: Goldsten, J.
name: Gold, R.
name: Ursi, A.
name: Tavani, M.
name: Bulgarelli, A.
name: Casentini, C.
name: Del Monte, E.
name: Evangelista, Y.
name: Galli, M.
name: Longo, F.
name: Marisaldi, M.
name: Parmiggiani, N.
name: Pittori, C.
name: Romani, M.
name: Verrecchia, F.
name: Smith, D. M.
name: Hajdas, W.
name: Xiao, S.
name: Cai, C.
name: Yi, Q. B.
name: Zhang, Y. Q.
name: Xiong, S. L.
name: Li, X. B.
name: Huang, Y.
name: Li, C. K.
name: Zhang, S. N.
name: Song, L. M.
name: Liu, C. Z.
name: Li, X. Q.
name: Peng, W. X.
name: Martinez-Castellanos, I.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the catalog of Interplanetary Network (IPN) localizations for 199 short-duration gamma-ray bursts (sGRBs) detected by the Konus-Wind (KW) experiment between 2011 January 1 and 2021 August 31, which extends the initial sample of IPN localized KW sGRBs (arXiv:1301.3740) to 495 events. We present the most comprehensive IPN localization data on these events, including probability sky maps in HEALPix format.
description: Published in ApJS
Automatic quenching of high energy gamma-ray sources by synchrotron photons
Creators: name: Stawarz, L.
name: Kirk, J. G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate a magnetized plasma in which injected high energy gamma-rays annihilate on a soft photon field, that is provided by the synchrotron radiation of the created pairs. For a very wide range of magnetic fields, this process involves gamma-rays between 0.3 GeV and 30 TeV. We derive a simple dynamical system for this process, analyze its stability to runaway production of soft photons and paris, and find conditions for it to automatically quench by reaching a steady state with an optical depth to photon-photon annihilation larger than unity. We discuss applications to broad-band gamma-ray emitters, in particular supermassive black holes. Automatic quenching limits the gamma-ray luminosity of these objects and predicts substantial pair loading of the jets of less active sources.
description: 11 pages, 2 figures included. Revised version, accepted for publication in ApJL
Flat band transport and Josephson effect through a finite-size sawtooth lattice
Creators: name: Pyykkönen, Ville A. J.
name: Peotta, Sebastiano
name: Fabritius, Philipp
name: Mohan, Jeffrey
name: Esslinger, Tilman
name: Törmä, Päivi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study theoretically the transport through a finite-size sawtooth lattice coupled to two fermionic reservoirs kept in the superfluid state. We focus on the DC Josephson effect and find that the flat band states of the sawtooth lattice can support larger critical current and at higher temperature than the dispersive band states. However, for this to occur the boundary states of the finite-size lattice need to be tuned at resonance with the bulk flat band states by means of additional boundary potentials. We show that transport in a two-terminal configuration can reveal the salient features of the geometric contribution of flat band superconductivity, namely the linear dependence of key quantities, such as the critical current and critical temperature, on the interaction. Our results are based on parameters of a realistic experimental lattice potential, and we discuss the conditions one needs to reach to observe the predicted effects experimentally.
description: 11 pages, 5 figures
รูปแบบความสัมพันธ์ของการทำวิทยาศาสตร์ข้อมูล ต่อการจัดการความสัมพันธ์นักศึกษา
Creators: name: เปรมประชา ดรชัย
Publisher: name: มหาวิทยาลัยราชภัฏเพชรบุรี
Year: 2020
Subjects: วิทยาศาสตร์ข้อมูล
การจัดการความสัมพันธ์นักศึกษา

description: วารสารวิทยาศาสตร์แห่งมหาวิทยาลัยราชภัฏเพชรบุรี, 17, 2, 67-75