cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The effect of heavy element opacity on pre-main sequence Li depletion
Creators: name: Sestito, P.
name: Innocenti, S. Degl
name: Moroni, P. G. Prada
name: Randich, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent 3-D analysis of the solar spectrum data suggests a significant change of the solar chemical composition. This may affect the temporal evolution of the surface abundance of light elements since the extension of the convective envelope is largely affected by the internal opacity value. We analyse the influence of the adopted solar mixture on the opacity in the convective envelope of pre-main sequence (PMS) stars and thus on PMS lithium depletion. The surface Li abundance depends on the relative efficiency of several processes, some of them still not known with the required precision; this paper thus analyses one of the aspects of this ``puzzle''. Focusing on PMS evolution, where the largest amount of Li burning occurs, we computed stellar models for three selected masses (0.8, 1.0 and 1.2 Msun, with Z=0.013, Y=0.27, alpha=1.9) by varying the chemical mixture, that is the internal element distribution in Z. We analysed the contribution of the single elements to the opacity at the temperatures and densities of interest for Li depletion. Several mixtures were obtained by varying the abundance of the most important elements one at a time; we then calculated the corresponding PMS Li abundance evolution. We found that a mixture variation does change the Li abundance: at fixed total metallicity, the Li depletion increases when increasing the fraction of elements heavier than O.
description: A&A accepted, 11 pages, 18 eps figures
Global MHD instabilities: from Low Frequency to High Frequency QPOs, and to Sgr A*
Creators: name: Tagger, Michel
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I review recent work that goes beyond our model for the Low-Frequency Quasi-Periodic Oscillation of microquasars, based on the Accretion-Ejection Instability. I show that similar instabilities, which can be viewed as strongly unstable versions of the diskoseismologic modes, provide explanations for both the High-Frequency QPO and for the quasi-periodicity observed durng the flares of Sgr A*, the supermassive black hole at the Galactic Center.
description: 11 pages, 8 figures, in the proceedings of the VI Microquasar Workshop "Microquasars and beyond", Como, 2006 Sep 18-22 (Italy), ed: T. Belloni (2006), PoS(MQW6)031
Brief an Johannes Amerbach
Creators: name: Amerbach, Bruno
Publisher: name: [s.n.]
Year: 1506

description: von Bruno Amerbach
description: Lateinisch
description: Druck: Die Amerbachkorrespondenz / bearb. und hrsg. von Alfred Hartmann. I. Band. - Basel : Verl. der Universitätsbibliothek, 1942, Nr. 323
description: Verzeichnung=Description=Inventaire August 2012 Vollständige Rekatalogisierung nach Standortverzeichnis G II 1 - G II 33 und Briefkatalog
The halo mass function from the dark ages through the present day
Creators: name: Reed, Darren
name: Bower, Richard
name: Frenk, Carlos
name: Jenkins, Adrian
name: Theuns, Tom
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use an array of high-resolution N-body simulations to determine the mass function of dark matter haloes at redshifts 10-30. We develop a new method for compensating for the effects of finite simulation volume that allows us to find an approximation to the true ``global'' mass function. By simulating a wide range of volumes at different mass resolution, we calculate the abundance of haloes of mass 10^{5-12} Msun/h. This enables us to predict accurately the abundance of the haloes that host the sources that reionize the universe. In particular, we focus on the small mass haloes (>~10^{5.5-6} Msun/h) likely to harbour population III stars where gas cools by molecular hydrogen emission, early galaxies in which baryons cool by atomic hydrogen emission at a virial temperature of ~10^4K (10^{7.5-8} Msun/h), and massive galaxies that may be observable at redshift ~10. When we combine our data with simulations that include high mass halos at low redshift, we find that the best fit to the halo mass function depends not only on linear overdensity, as is commonly assumed in analytic models, but also upon the slope of the linear power spectrum at the scale of the halo mass. The Press-Schechter model gives a poor fit to the halo mass function in the simulations at all epochs; the Sheth-Tormen model gives a better match, but still overpredicts the abundance of rare objects at all times by up to 50%. Finally, we consider the consequences of the recently released WMAP 3-year cosmological parameters. These lead to much less structure at high redshift, reducing the number of z=10 ``mini-haloes'' by more than a factor of two and the number of z=30 galaxy hosts by more than four orders of magnitude. Code to generate our best-fit halo mass function may be downloaded from http://icc.dur.ac.uk/Research/PublicDownloads/genmf_readme.html
description: MNRAS accepted. Changes in response to referee comments, including discussion of uncertainties with 2 additional plots. Corrected version of 2 plots showing mass function dependence on cosmological parameters (WMAP3 vs WMAP1). Conclusions unchanged. Code to reproduce this mass function can be downloaded at http://icc.dur.ac.uk/Research/PublicDownloads/genmf_readme.html
Probing Non-classicality of Primordial Gravitational Waves and Magnetic Field Through Quantum Poincare Sphere
Creators: name: Maity, Debaprasad
name: Pal, Sourav
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The universe is believed to be originated from a quantum state. However, defining measurable quantities for the quantum properties in the present universe has gained interest recently. In this submission, we propose a quantum Poincare sphere as an observable quantity that can hint at the quantumness of primordial gravitational waves and large-scale magnetic fields. The Poincare sphere is defined in terms of quantum stokes operators associated with the polarization of those fields, which can be measured directly. We have further studied the effects of the initial non-BD vacuum on the power spectrum and squeezing parameter of the primordial gravitational waves and magnetic field. We have found that the initial non-BD vacuum increases the value of the squeezing parameter as expected at the end of inflation, which further enhances the possibility of measuring the quantumness of the fields under consideration. To support our results, we further explored the possible Bell violation test for a set of generalized pseudo spin operators defined in the polarization space of those fields.
description: 11 pages, 5 figures, Some section added, Published in PLB
Закавказские молокане: Этапы и факторы сложения и "размывания" субэтнической группы
Creators: name: А.Н., Ямсков
Publisher: name: Zenodo
Year: 1989
Subjects: русские старожилы
молокане
русские крестьяне Закавказья
русские в Азербайджане

description: Публикация посвящена характеристике периодов формирования этнокультурной специфики и особой идентичности молокан – русского сельского населения Восточного Закавказья в середине – конце XIX века, устойчивого существования этих феноменов в первой половине XX в., и постепенного их размывания во второй половине XX в.
title: A Book Review on Restructuring the Social Sciences: Gulbenkian Commission, Open the Social Sciences Report
title: Sosyal Bilimlerin Yeniden Yapılanması Konusunda Bir Kitap İncelemesi: Gulbenkian Komisyonu, Sosyal Bilimleri Açın Raporu
titleType: AlternativeTitle
Creators: name: Ahmet Ali Çelik
Publisher: name: Zenodo
Year: 2023

description: “Open the Social Sciences" report, published by the Gulbenkian Commission in 1993, is a study created to provide solutions to the problems experienced in the social sciences recently. In this report, which is the product of the commission's work spanning two years, ten scientists from different disciplines aim to develop a perspective on today's problems and offer solutions by establishing a connection between the past and future of social sciences. In this report, which was first published in 1995, the historical establishment of the social sciences from the 18th century to 1945 and the discussions within the social sciences from 1945 to the present were discussed, respectively, and then "What kind of social science should we establish now?" An attempt has been made to answer the question. The social sciences are prone to some problems due to the dynamics they bring from the past to the present. The report was written with the ultimate aim of offering solutions to these problems and "reconstructing the social sciences." The authors have also suggested things like rethinking the limits of how the social sciences have been specialized in the past and limiting over-specialization, which can lead to the formation of knowledge monopolies and the careless spending of university funds. Instead, they suggest boosting the number of multidisciplinary studies and the resources and institutions that support them.
The Conservation Reserve Program and Its Effect on Land Values
Creators: name: Shoemaker, Robbin
name: Shoemaker, Robbin
Publisher: name: Unknown
Year: 1989
Subjects: Agricultural and Food Policy
Land Economics/Use

description: Some farmers enrolled in the Conservation Reserve Program (CRP) in 1986 and 1987 may have earned more under the CRP than they would have if they had not enrolled in the CRP and had farmed or rented out their land instead. The difference in earnings may have resulted in as much as a 7-percent average increase in values for enrolled land. The CRP may have also cushioned the decline in all land values. U.S. land values fell 8 percent under the CRP between 1986 and 1987, possibly 0.3 percentage point less than they would have fallen without the CRP.
Polyhedral studies on scheduling and routing problems
Creators: name: Wang, Yaoguang
Publisher: name: University of British Columbia
Year: 2011

description: During the last decade, there have been major advances in solving a class of large-scale real world combinatorial optimization problems. Such problems are formulated as Travelling Salesman Problems (TSP), some involving up to thousands of cities. These achievements, mainly due to the use of so called polyhedral techniques, have established the importance of the polyhedral study for various combinatorial optimization problems. This thesis studies polyhedral structures of two well known combinatorial problems: (i) precedence constrained single machine scheduling and (ii) TSP, both Symmetric TSP (STSP) and Asymmetric TSP (ATSP). These problems are of both theoretical interest and practical importance. Better knowledge of the polyhedral descriptions of these problems may facilitate the polyhedral study of more complex scheduling and routing problems. For the scheduling problem, we present two classes of facetial inequalities, which suffice to describe the linear system of the scheduling problem when the precedence constraints are series-parallel. We also propose a cutting plane procedure based on these facet cuts. The computational results show the procedure yields feasible schedules with relative deviations from the optimum less than 0.25% on the average and less than 1% in the empirical worst case. For TSPs, we explore a Hamiltonian path approach to the polyhedral study. We propose various facet extension techniques for deriving large classes of facets from known facets. In the STSP case, we propose new clique lifting results. In the ATSP case, we develop a Tree Composition method, which generates all non-spanning clique tree facetial inequalities.
Brief an Johannes Amerbach
Creators: name: Amerbach, Bruno
Publisher: name: [s.n.]
Year: 1506

description: von Bruno Amerbach
description: Lateinisch
description: Druck: Basilea latina : lateinische Texte zur Zeit- und Kulturgeschichte der Stadt Basel im 15. und 16. Jahrhundert / ausgewählt und erläutert von Alfred Hartmann. - Basel : Lehrmittelverlag des Erziehungsdepartements, 1931. S. 156 ff.
description: Druck: Die Amerbachkorrespondenz / bearb. und hrsg. von Alfred Hartmann. I. Band. - Basel : Verl. der Universitätsbibliothek, 1942, Nr. 299
description: Verzeichnung=Description=Inventaire August 2012 Vollständige Rekatalogisierung nach Standortverzeichnis G II 1 - G II 33 und Briefkatalog
Φαινολικά οξέα ως φυσικοί παρεμποδιστές οξείδωσης: αξιολόγηση δραστικότητας, προοπτική αξιοποίησης σε λειτουργικά τρόφιμα
Creators: name: Ορδούδη, Στεργιανή
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Ελεύθερες ρίζες
Κρόκος
Free radicals
Saffron

description: Μελετήθηκαν σχέσεις δομής-δραστικότητας μεγάλου αριθμού φαινολοκών οξέων και συγγενών ενώσεων με τη βοήθεια της δοκιμής αποχρωματισμού της κροκίνης(CBA) ή/και άλλων δοκιμών(DPPH, ORAC, επιταχυνόμενη δοκιμή οξείδωσης λιπαρού υποστρώματος). Πριν από την εφαρμογή στη μελέτη αντιοξειδωτικής δράσηε, το αναλυτικό πρωτόκολλο τηε CBA επικυρώθηκε ενδοεργαστηριακά με τη βοήθεια φασματομετρικών και χρωματογραφικών τεχνικών(HPLC, GC). Η σειρά δραστικότητας μεταξύ των υδροξυβενοϊκών οξέων ήταν ερμηνεύσιμη με βάση τα ηλεκτρονικά και στερεοχημικά φαινόμενα των υποκαταστατών του φαινολικού δακτυλίου. Τα υδροξυβενζοϊκά οξέα βρέθηκαν παρόμοια δραστικά με τις αντίστοιχες απλές φαινόλες. Η επίδραση της απόστασης του-COOH από το δακτύλιο έγινε περισσότερο φανερή στην περίπτωση οξέων-παραγώγου της γοναϊοκόλης και όχι στην περίπτωση οξέων-παραγώγων της κατεχόλης. Στην τελευταία περίπτωση, η σειρά δραστικότητας διαφοροποιήθηκε ανάλογα με τις συνθήκες της εφαρμοζόμενης δοκιμής. Με εφαρμογή της CBA αναδείχθηκε η σημασία του όξινου χαρακτήρα των ενώσεων λόγω της παρουσίας των COOH και 4-ΟΗ υποκαταστατών. Συμπερασματικά η CBA φάνηκε να είναι κατάλληλη για την αξιολόγηση SAR μεταξύ συγγενών ενώσεων με μικρές δομικές διαφορές. Απλά φαινολικά οξέα μπορούν να θεωρηθούν αξιόλογοι φυσικοί παρεμποδιστές οξείδωσης ενώ σημαντική φάνηκε να είναι και η δράση ορισμένων παραγώγων των οξέων
description: Structure-radical scavenging activity relationships(SARs) among a great number of phendic acids and related compounds were studied using the Crocin Bleaching Assay(CBA) and/or other assays(DPPH;ORAC, lipid oxidation), where necessary. Prior to estimation of antioxidant activitym the CBA protocol was in-house validated using chromatographic(HPLC, GC) and spectrophotometric techiques. Within the subgroup of hydroxybenzoic acids, the CBA-derived order of activity was meaningful in view the electronic effects of ring substituents as well as the steric phenomena due to proximity of -COOH and OH groups to the phenyl ring. Hydroxybenzoic acids were somewhat less active than their parent phenols. The effect of proximity of th -COOH group to the phenyl ring was more distinct for 3,4-substituted guaiacol acids than for 3,4-substituted calechol ones. The activity order between the catechol acid derivatives strongly varied depending on the assay conditions. CBA results were meaningful taking into account the acidity of compounds due to the presence of-COOH and 4-OH substituents. The results indicate that CBA is suitable for evaluation of SARs among closely related compounds bearing small structural differences. The importance of simple plant-derived acid phenols as efficient radical scavengers is highlightened
Brief an Johannes Amerbach
Creators: name: Amerbach, Bonifacius
Publisher: name: [s.n.]
Year: 1507

description: von Bonifacius Amerbach
description: Lateinisch
description: Druck: Die Amerbachkorrespondenz / bearb. und hrsg. von Alfred Hartmann. I. Band. - Basel : Verl. der Universitätsbibliothek, 1942, Nr. 339
description: Verzeichnung=Description=Inventaire August 2012 Vollständige Rekatalogisierung nach Standortverzeichnis G II 1 - G II 33 und Briefkatalog
Brief an Johannes Amerbach
Creators: name: Amerbach, Bruno
Publisher: name: [s.n.]
Year: 1505

description: von Bruno Amerbach
description: Lateinisch
description: Druck: Die Amerbachkorrespondenz / bearb. und hrsg. von Alfred Hartmann. I. Band. - Basel : Verl. der Universitätsbibliothek, 1942, Nr. 275
description: Verzeichnung=Description=Inventaire August 2012 Vollständige Rekatalogisierung nach Standortverzeichnis G II 1 - G II 33 und Briefkatalog
Microscopic Diffusion in Stellar Evolution Codes: First Comparison results of ESTA-Task~3
Creators: name: Lebreton, Y.
name: Montalban, J.
name: Christensen-Dalsgaard, J.
name: Theado, S.
name: Hui-Bon-Hoa, A.
name: Monteiro, M. J. P. F. G.
name: Degl'Innocenti, S.
name: Marconi, M.
name: Morel, P.
name: Moroni, P. G. Prada
name: Weiss, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present recent work undertaken by the Evolution and Seismic Tools Activity (ESTA) team of the CoRoT Seismology Working Group. The new ESTA-Task 3 aims at testing, comparing and optimising stellar evolution codes which include microscopic diffusion of the chemical elements resulting from pressure, temperature and concentration gradients. The results already obtained are globally satisfactory, but some differences between the different numerical tools appear that require further investigations.
description: to appear in "Stellar Evolution and Seismic Tools for Asteroseismology", (Eds) C. W. Straka, Y. Lebreton and M. J. P. F. G. Monteiro, EAS Publications Series, 2007
Nanometer-scale photon confinement in topology-optimized dielectric cavities
Creators: name: Albrechtsen, Marcus
name: Lahijani, Babak Vosoughi
name: Christiansen, Rasmus Ellebæk
name: Nguyen, Vy Thi Hoang
name: Casses, Laura Nevenka
name: Hansen, Søren Engelberth
name: Stenger, Nicolas
name: Sigmund, Ole
name: Jansen, Henri
name: Mørk, Jesper
name: Stobbe, Søren
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Nanotechnology enables in principle a precise mapping from design to device but relied so far on human intuition and simple optimizations. In nanophotonics, a central question is how to make devices in which the light-matter interaction strength is limited only by materials and nanofabrication. Here, we integrate measured fabrication constraints into topology optimization, aiming for the strongest possible light-matter interaction in a compact silicon membrane, demonstrating an unprecedented photonic nanocavity with a mode volume of $V\sim3\times10^{-4}\,λ^3$, quality factor $Q\sim1100$, and footprint $4\,λ^2$ for telecom photons with a $λ\sim 1550$ nm wavelength. We fabricate the cavity, which confines photons inside 8 nm silicon bridges and use near-field optical measurements to perform the first experimental demonstration of photon confinement to a single hotspot well below the diffraction limit in dielectrics.
Simultaneous Estimation of Large-Scale Structure and Milky Way Dust Extinction from Galaxy Surveys
Creators: name: Bravo, Matías
name: Gawiser, Eric
name: Padilla, Nelson D.
name: DeRose, Joseph
name: Wechsler, Risa H.
name: Collaboration, The LSST Dark Energy Science
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The high cosmological precision offered by the next generation of galaxy surveys hinges on improved corrections for Galactic dust extinction. We explore the possibility of estimating both the dust extinction and large-scale structure from a single photometric galaxy survey, making use of the predictable manner in which Milky Way dust affects the measured brightness and colors of galaxies in a given sky location in several redshift bins. To test our method, we use a synthetic catalog from a cosmological simulation designed to model the Vera C. Rubin Observatory Legacy Survey of Space and Time. At high Galactic latitude ($|b|\gtrsim20^\circ$) and a resolution of $1^\circ$ ($7'$), we predict the uncertainty in the measurement of dust extinction, $E(B-V)$, to be $0.005\ \mathrm{mag}$ ($0.015\ \mathrm{mag}$). This is similar to the uncertainty of existing dust maps, illustrating the feasibility of our method. Simultaneous estimation of large-scale structure is predicted to recover the galaxy overdensity $δ$ with a precision of $\sim0.01$ ($\sim0.05$) at $1^\circ$ ($7'$) resolution. We also introduce a Bayesian formalism that combines prior information from existing dust maps with the likelihood of Galactic dust extinction determined from the excursion of observed galaxy properties.
description: 22 pages, 11 figures. Submitted to ApJ
Brief an Johannes Amerbach
Creators: name: Amerbach, Bonifacius
Publisher: name: [s.n.]
Year: 1507

description: von Bonifacius [Amerbach]
description: Lateinisch
description: Druck: Die Amerbachkorrespondenz / bearb. und hrsg. von Alfred Hartmann. I. Band. - Basel : Verl. der Universitätsbibliothek, 1942, Nr. 340
description: Druck: Basilea latina : lateinische Texte zur Zeit- und Kulturgeschichte der Stadt Basel im 15. und 16. Jahrhundert / ausgewählt und erläutert von Alfred Hartmann. - Basel : Lehrmittelverlag des Erziehungsdepartements, 1931. S. 158 f.
description: Verzeichnung=Description=Inventaire August 2012 Vollständige Rekatalogisierung nach Standortverzeichnis G II 1 - G II 33 und Briefkatalog
The h-index is no longer an effective correlate of scientific reputation
Creators: name: Koltun, Vladlen
name: Hafner, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: The impact of individual scientists is commonly quantified using citation-based measures. The most common such measure is the h-index. A scientist's h-index affects hiring, promotion, and funding decisions, and thus shapes the progress of science. Here we report a large-scale study of scientometric measures, analyzing millions of articles and hundreds of millions of citations across four scientific fields and two data platforms. We find that the correlation of the h-index with awards that indicate recognition by the scientific community has substantially declined. These trends are associated with changing authorship patterns. We show that these declines can be mitigated by fractional allocation of citations among authors, which has been discussed in the literature but not implemented at scale. We find that a fractional analogue of the h-index outperforms other measures as a correlate and predictor of scientific awards. Our results suggest that the use of the h-index in ranking scientists should be reconsidered, and that fractional allocation measures such as h-frac provide more robust alternatives. An interactive visualization of our work can be found at https://h-frac.org
description: An interactive visualization of our work can be found at https://h-frac.org
The kinetics of formation of complexes between Escherichia coli RNA polymerase and the rrnB P1 and P2 promoters of Bacillus subtilis
Creators: name: Wellington, Stephen Ross
Publisher: name: University of British Columbia
Year: 2011

description: In bacteria, a change in the growth rate (≥ 0.7 doublings per hour) is accompanied by a directly proportional change in the steady-state intracellular concentration of ribosomes. This growth rate dependent control of ribosome biosynthesis is apparently regulated at the level of ribosomal RNA (rRNA) transcription initiation by a feedback inhibition mechanism. One proposed effector of this feedback inhibition has been guanosine tetraphosphate (ppGpp). The effects of ppGpp on the kinetics of formation and dissociation of heparin resistant complexes between Escherichia coli RNA polymerase and the rrnB P1 (non growth rate regulated) and P2 (growth rate regulated) promoters from Bacillus subtilis were investigated as a function of temperature using a gel retardation assay. The results from this thesis suggest that the formation of polymerase/promoter complexes proceeded by way of three kinetically significant reaction steps. The initial bimolecular collision between free RNA polymerase and the promoter led to the formation of a heparin sensitive (HS) complex, which subsequently isomerized to an intermediate (HR1) and then final (HR2) heparin resistant complex. The temperature dependences of the forward isomerization rate constant (kf), and the (overall) second-order association rate constant (ka), were inconsistent with the proposal that free RNA polymerase and promoter fragments existed in rapid equilibrium with HS. If this rapid equilibrium existed, then the predicted equilibrium constant for binding (K1 = ka/kf) would be exothermic, contradicting the temperature dependence of KI observed at other promoters. Consequently, it was proposed that a sequential mode of binding best described the bimolecular collision. The gel retardation assay described in this thesis examined the effects of ppGpp at a select number of steps in the overall path of transcription initiation. For the promoters in question, this analysis provided direct information regarding the formation of the HS and HR1 complexes, and indirect information regarding the formation of HR2 and initiated ternary complexes. The cumulative results from studies of the B. subtilis and E. coli rrnB PI and P2 promoters would suggest that ppGpp does not act to differentially inhibit transcription initiation at any of the steps investigated.
Birkhoffian formulation of the dynamics of LC circuits
Creators: name: Ionescu, Delia
name: Scheurle, Juergen
Publisher: name: arXiv
Year: 2006
Subjects: subject: Dynamical Systems (math.DS)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We present a formulation of general nonlinear LC circuits within the framework of Birkhoffian dynamical systems on manifolds. We develop a systematic procedure which allows, under rather mild non-degeneracy conditions, to write the governing equations for the mathematical description of the dynamics of an LC circuit as a Birkhoffian differential system. In order to illustrate the advantages of this approach compared to known Lagrangian or Hamiltonian approaches we discuss a number of specific examples. In particular, the Birkhoffian approach includes networks which contain closed loops formed by capacitors, as well as inductor cutsets. We also extend our approach to the case of networks which contain independent voltage sources as well as independent current sources. Also, we derive a general balance law for an associated "energy function".
description: 26 pages, 2 figures. Z. Angew. Math. Phys. (ZAMP), accepted for publication
Brief an Basilius Amerbach
Creators: name: Amerbach, Bruno
Publisher: name: [s.n.]
Year: 1507

description: von Bruno Amerbach
description: Lateinisch
description: Druck: Die Amerbachkorrespondenz / bearb. und hrsg. von Alfred Hartmann. I. Band. - Basel : Verl. der Universitätsbibliothek, 1942, Nr. 345
description: Verzeichnung=Description=Inventaire August 2012 Vollständige Rekatalogisierung nach Standortverzeichnis G II 1 - G II 33 und Briefkatalog
Διαδίκτυο: προσκλήσεις και κίνδυνοι για το μέλλον της δημοσιογραφίας
Creators: name: Δημητρακοπούλου, Δήμητρα Γ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Συμμετοχική δημοσιογραφία
Δημοσιογραφία του κοινού
Weblogs
Participatory journalism
Civic journalism

description: Αντικείμενο της παρούσας διδακτορικής διατριβής είναι η σκιαγράφηση του ρόλου και ο προσδιορισμός του επαγγέλματος του δημοσιογράφου στην ψηφιακή εποχή, όπου σημαντικός παράγοντας τω εξελίξεων είναι η ανάδυση και η ταχύτατη ανάπτυξη των νέων Μέσων, και ειδικότερα του διαδικτύου. Η έρευνά μας εξετάζει το θέμα υπό το πρίσμα των ευρύτερων εξελίξεων στο κοινωνικό, πολιτικό, οικονομικό και τεχνολογικό πεδίο. Η προβληματική της διατριβής μας εντάσσεται στην ευρύτερη επιστημονική συζήτηση γύρω από το μέλλον της δημοσιογραφίας : από τη μία, διατυπώνονται απόψεις που διαβλέπουν στο διαδίκτυο την προοπτική αναζωογόνησης της δημοσιογραφίας,ενώ, από την άλλη, οι πιο απαισιόδοξοι κριτικοί προοιωνίζονται το τέλος της δημοσιογραφίας ιδίως εξαιτίας των διαδραστικών δυνατοτήτων που προσφέρει το διαδίκτυο σε φορείς και πολίτες. Η παρούσα διατριβή διερευνά το ζήτημα της μετεξέλιξης του δημοσιογραφικού ρόλου και επαγγέλματος στην ύστερη νεωτερικότητα : πρώτον, μέσα από βιβλιογραφική επισκόπηση και κριτική των κεντρικών θεωριών και θεωρήσεων που έχουν αναπτυχθεί και δατυπωθεί γύρω από το θέμα και, δεύτερον, μέσα από εμπειρική πρωτογενή έρευνα σε δημοσιογράφους που εργάζονται σε παραδοσιακά και αμιγώς διαδικτυακά Μέσα στην Ελλάδα. Η κεντρική υπόθεση που αναπτύσσουμε είναι ότι το αναζωογόνησης της δημοσιογραφίας ή ένα πεδίο συστηματικής ανάπτυξης της συμμετοχικής δημοσιογραφίας/δημοσιογραφίας των πολιτών
description: The subject of the present doctoral thesis is the determination of the role and the profession of journalisjm in the digital era which is defined by the emergence and the rapid development of new media and especially the Internet. Our research examines this issue in the light of the broader developments in the social, political, economic and technological field. The problematic of our thesis is subsumed into the broader scientific discussion regarding the future of journalism: on the one hand, some claim that the Internet has the prospect to reviitalize journalism, while others, more pessimistic critics believe that the Internet will mark the end of journalism, especially because of the interactive possibilities that it offers to institutions and citizens. This thesis studies the developement of the role and the profession of journalism in late modernity: firstly, through a literature of the main theories and stanspoints that have been developed and expressed about this issue and, secondly, through an empirical primary research among journalists who work in traditional and Internet-only media in Greece. Our main hypothesis is that the Internet does not constitute so far an important factor of the revitalization of journalism or a field of systematic developement of participatory/civic journalism
Bernoulli, Daniel, I.U.D., Notar
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1830

description: Ort: Basel
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
IQTIDORLI YOSHLAR - MILLAT FAXRI
Creators: name: CHORIYEVA, SHODIYONA
Publisher: name: Zenodo
Year: 2024

description: Siz ushbu maqolani oʻqish davomida Oʻzbekiston Davlat jahon tillari universiteti haqida bir qancha maʼlumotlarga, amalga oshirilayotgan islohotlarning samarasini, universitetda taʼlim olayotgan talabalarning yutuqlari va yaqin kelajak  taraqqiyoti uchun ilgari surilgan gʻoyalar haqida maʼlumot olasiz.
Gaia early DR3 systemic motions of Local Group dwarf galaxies and orbital properties with a massive Large Magellanic Cloud
Creators: name: Battaglia, G.
name: Taibi, S.
name: Thomas, G. F.
name: Fritz, T. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We perform a comprehensive determination of the systemic proper motions of 74 dwarf galaxies and dwarf galaxy candidates in the Local Group based on Gaia early data release 3. The outputs of the analysis for each galaxy, including probabilities of membership, will be made publicly available. The analysis is augmented by a determination of the orbital properties of galaxies within 500 kpc. We adopt the flexible Bayesian methodology presented by McConnachie \& Venn (2020), which takes into account the location of the stars on the sky, on the colour-magnitude diagram and on the proper motion plane. We apply some modifications, in particular to the way the colour-magnitude diagram and spectroscopic information are factored in, e.g. by including stars in several evolution phases. The bulk motions are integrated in three gravitational potentials: two where the Milky Way is treated in isolation and has a mass 0.9 \& 1.6 $\times 10^{12}$M$_{\odot}$ and the time-varying potential by Vasiliev et al. (2021), which includes the infall of a massive Large Magellanic Cloud (LMC). We are able to determine bulk proper motions for 73 systems, and we consider reliable 66 of these measurements. For the first time, systemic motions are presented for galaxies out to a distance of 1.4 Mpc, in the NGC~3109 association. The inclusion of the infall of a massive LMC significantly modifies the orbital trajectories of the objects, with respect to orbit integration in static Milky Way-only potentials, and leads to 6 galaxies being likely associated to the LMC, 3 possibly associated and 1 recently captured object. We discuss the results of the orbit integration in the context of the relation of the galaxies to the system of Milky Way satellites, implications for the too-big-to-fail problem, impact on star formation histories, and tidal disruption.
description: Submitted to A&A. 47 pages
Multiwavelength study of the transient X-ray binary IGR J01583+6713
Creators: name: Kaur, Ramanpreet
name: Paul, Biswajit
name: Kumar, Brijesh
name: Sagar, Ram
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have investigated multiband optical photometric variability and stability of the H$α$ line profile of the transient X-ray binary IGR J01583+6713. We set an upper limit of 0.05 mag on photometric variations in the {\it V} band over a time scale of 3 months. The H$α$ line is found to consist of non-Gaussian profile and quite stable for a duration of 2 months. We have identified the spectral type of the companion star to be B2 IVe while distance to the source is estimated to be $\sim$ 4.0 kpc. Along with the optical observations, we have also carried out analysis of X-ray data from three short observations of the source, two with the {\it Swift}--XRT and one with the {\it RXTE}--PCA. We have detected a variation in the absorption column density, from a value of 22.0 $\times$ 10$^{22}$ cm$^{-2}$ immediately after the outburst down to 2.6 $\times$ 10$^{22}$ cm$^{-2}$ four months afterwards. In the quiescent state, the X-ray absorption is consistent with the optical reddening measurement of E(B - V) = 1.46 mag. From one of the {\it Swift} observations, during which the X-ray intensity was higher, we have a possible pulse detection with a period of 469.2 s. For a Be X-ray binary, this indicates an orbital period in the range of 216--561 days for this binary system.
description: 22 pages, 8 figures, accepted for publication in MNRAS
Latency-Constrained Highly-Reliable mmWave Communication via Multi-point Connectivity
Creators: name: Kumar, Dileep
name: Joshi, Satya
name: Tölli, Antti
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: Information Theory (cs.IT)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The sensitivity of millimeter-wave (mmWave) radio channel to blockage is a fundamental challenge in achieving low-latency and ultra-reliable connectivity. In this paper, we explore the viability of using coordinated multi-point (CoMP) transmission for a delay bounded and reliable mmWave communication. We propose a novel blockage-aware algorithm for the sum-power minimization problem under the user-specific latency requirements in a dynamic mobile access network. We use the Lyapunov optimization framework, and provide a dynamic control algorithm, which efficiently transforms a time-average stochastic problem into a sequence of deterministic subproblems. A robust beamformer design is then proposed by exploiting the queue backlogs and channel information, that efficiently allocates the required radio and cooperation resources, and proactively leverages the multi-antenna spatial diversity according to the instantaneous needs of the users. Further, to adapt to the uncertainties of the mmWave channel, we consider a pessimistic estimate of the rates over link blockage combinations and an adaptive selection of the CoMP serving set from the available remote radio units (RRUs). Moreover, after the relaxation of coupled and non-convex constraints via the Fractional Program (FP) techniques, a low-complexity closed-form iterative algorithm is provided by solving a system of Karush-Kuhn-Tucker (KKT) optimality conditions. The simulation results manifest that, in the presence of random blockages, the proposed methods outperform the baseline scenarios and provide power-efficient, high-reliable, and low-latency mmWave communication.
description: 12 pages, 10 figures
Rhetorica
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1450

description: Der Sammelband enthält u.a. Texte von Guilelmus Tardivus, Robert Gaguin, Johannes Serra, Guarinus von Verona und Peter Luder.
description: Öffentliche Bibliothek der Universität Basel
description: Latein
description: Gilly, Carlos. - Spanien und der Basler Buchdruck bis 1600 (Basler Beiträge zur Geschichtswissenschaft, 151). - Basel; Frankfurt a.M., 1985, S. 122 Abm. 147 1v-22r
description: Beltran, Evencio (Hrsg.). - Nouveaux textes inédits d'humanistes français du milieu du XVe siècle. - Genève, 1992, S. 85-145 215r-245v
description: Beltran, Evencio. - Un manuscrit autographe de la 'Grammatice basis' de Guillaume Tardif. In: Bibliothèque d'humanisme et renaissance ; 61 (1999), S. 495-508, hier S. 405 Anm. 5 110r-178v
description: Verzeichnung=Description=Inventaire Jan. 2010 Titel, Jahr und Signatur nach: Steinmann, unpublizierte Beschreibung
description: Verzeichnung=Description=Inventaire Okt. 2023 HAN-Katalogisierungsregeln Minimalaufnahme nach: Steinmann, ungedruckte Beschreibung
description: Digitalisierung=Digitization=Numérisation Okt. 2023 TIFF
description: Erschliessungsniveau Minimalniveau
On the Elasticity of Polymer Model Networks Containing Finite Loops
Creators: name: Lang, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Based upon the resistor analogy and using the ideal loop gas approximation(ILGA) it is shown that only pending loops reduce the modulus of an otherwise perfect network made of monodisperse strands and junctions of identical functionality. Thus, the cycle rank of the network with pending structures removed (cyclic and branched) is sufficient to characterize modulus, if the resistor analogy can be employed. It is further shown that it is impossible to incorporate finite cycles into a polymer network such that individual network strands are at equilibrium conformations while maintaining simultaneously a force balance at the junctions. Therefore, the resistor analogy provides only an approximation for the phantom modulus of networks containing finite loops. Improved approaches to phantom modulus can be constructed from considering a force balance at the junctions, which requires knowledge of the distribution of cross-link fluctuations in imperfect networks. Assuming loops with equilibrium conformations and a force balance at all loop junctions, a lower bound estimate for the phantom modulus, $G_{\text{ph}}\approx\left(ξ-c_{\text{f}}L_{1}\right)kT/V$ is obtained within the ILGA for end-linked model networks and in the limit of $L_{1}\llξ$. Here, $L_{1}$ is the number of primary ("pending") loops, $ξ$ the cycle rank of the network, $k$ the Boltzmann constant, $V$ the volume of the sample, and $T$ the absolute temperature. $c_{\text{f}}$ is a functionality dependent coefficient that is $\approx2.56$ for junction functionality $f=3$ and $\approx3.06$ for $f=4$, while it converges quickly towards $\approx4.2$ in the limit of large $f$. Further corrections to phantom modulus beyond finite loops are addressed briefly.
Φυσικοχημικές παράμετροι της συντήρησης χαρτιού
Creators: name: Στεφανής, Εμμανουήλ Ι.
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Νανοσωματίδια
Διαλύτες συντήρησης
Μέθοδος συνεισφοράς ομάδων
Nanoparticles
Solvents for conservation
Group-contribution method

description: Ο πρώτος στόχος της διατριβής είναι η αναλυτική μελέτη της αποτελεσματικότητας των διεργασιών αποξίνισης χαρτίού με διασπορές νανοσωματιδίων Ca(OH)2 και Mg(OH)2 σε αλκοόλες πραγματοποιώντας πειράματα θερμικά επιταχυνόμενης γήρανσης και επιταχυνόμενης γήρανσης υπό την επίδραση ακτινοβολίας UV. Ο δεύτερος στόχος είναι η ανάπτυξη μίας μεθόδου πρόβλεψης για το χημικό καθαρισμό του χαρτιού και τη συντήρηση των έργων τέχνης
description: The first target of the Phd thesis is the detailed study of the efficiency of paper deadification with dispersions of Ca(OH)2 and Mg(OH)2 nanoparticles by conducting accelerated thermal agieng and accelerated UV ageing tests. The second target of the thesis is the development of a method for the prediction of properties of appropriate solvents for the chemical cleaning of paper and the conservation of works of arts
Binary black hole detection rates in inspiral gravitational wave searches
Creators: name: Broeck, Chris Van Den
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The signal-to-noise ratios (SNRs) for quasi-circular binary black hole inspirals computed from restricted post-Newtonian waveforms are compared with those attained by more complete post-Newtonian signals, which are superpositions of amplitude-corrected harmonics of the orbital phase. It is shown that if one were to use the best available amplitude-corrected waveforms for detection templates, one should expect SNRs in actual searches to be significantly lower than those suggested by simulations based purely on restricted waveforms.
description: 9 pages, 1 figure
Metaphysica
Creators: name: Albertus
Publisher: name: [s.n.]
Year: 1440

description: Albertus Magnus OP
description: Öffentliche Bibliothek der Universität Basel
description: Latein
description: Aus der Kartaus Basel, "... proveniens ad. Iohanne de Lapide confratre nostro ..." (Eintrag Bl. ar mit alter Signatur "a lxxix", ein weiterer Besitzeintrag der Kartaus Bl. 283va, alles von Jakob Louber); Bl. ar Name eines früheren Besitzers: "[späterer Zusatz: Fuit] PRo M. Galtero de Wernick".
description: Verzeichnung=Description=Inventaire Jan. 2010 Titel, Jahr und Signatur nach: Steinmann, unpublizierte Beschreibung
description: Verzeichnung=Description=Inventaire Aug. 2017 Normalniveau nach: Steinmann 1983
description: Digitalisierung=Digitization=Numérisation Mai 2023 TIFF
description: Erschliessungsniveau Normalniveau
ORCID-linked labeled data for evaluating author name disambiguation at scale
Creators: name: Kim, Jinseok
name: Owen-Smith, Jason
Publisher: name: arXiv
Year: 2021
Subjects: subject: Digital Libraries (cs.DL)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: How can we evaluate the performance of a disambiguation method implemented on big bibliographic data? This study suggests that the open researcher profile system, ORCID, can be used as an authority source to label name instances at scale. This study demonstrates the potential by evaluating the disambiguation performances of Author-ity2009 (which algorithmically disambiguates author names in MEDLINE) using 3 million name instances that are automatically labeled through linkage to 5 million ORCID researcher profiles. Results show that although ORCID-linked labeled data do not effectively represent the population of name instances in Author-ity2009, they do effectively capture the 'high precision over high recall' performances of Author-ity2009. In addition, ORCID-linked labeled data can provide nuanced details about the Author-ity2009's performance when name instances are evaluated within and across ethnicity categories. As ORCID continues to be expanded to include more researchers, labeled data via ORCID-linkage can be improved in representing the population of a whole disambiguated data and updated on a regular basis. This can benefit author name disambiguation researchers and practitioners who need large-scale labeled data but lack resources for manual labeling or access to other authority sources for linkage-based labeling. The ORCID-linked labeled data for Author-tiy2009 are publicly available for validation and reuse.
description: A pre-print of a paper accepted for publication in the journal Scientometrics
Phase diagram of the spin-Peierls chain with local coupling
Creators: name: Weisse, Alexander
name: Hager, Georg
name: Bishop, Alan R.
name: Fehske, Holger
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We explore the ground-state phase diagram of a Heisenberg spin chain coupled locally to optical phonons (bond coupling), using large-scale density matrix renormalization group calculations and an extended perturbative analysis. For the quantum phase transition from the spin liquid to the dimerized phase, we find deviations from previous quantum Monte Carlo and flow equation results.
description: 4 pages, 3 figures
Exceptional points in the elliptic-hyperelliptic locus
Creators: name: Tyszkowska, Ewa
name: Weaver, Anthony
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 14J50, 32G15

description: An exceptional point in the moduli space of compact Riemann surfaces is a unique surface class whose full automorphism group acts with a triangular signature. A surface admitting a conformal involution with quotient an elliptic curve is called elliptic-hyperelliptic; one admitting an anticonformal involution is called symmetric. In this paper, we determine, up to topological conjugacy, the full group of conformal and anticonformal automorphisms of a symmetric exceptional point in the elliptic-hyperelliptic locus. We determine the number of ovals of any symmetry of such a surface. We show that while the elliptic-hyperelliptic locus can contain an arbitrarily large number of exceptional points, no more than four are symmetric.
description: 23 pages; shortened for publication
Meditationes devotae de sanctis : e quibus numeri 1, 3, 4 pro certo, 2 probabiliter Henrici Arnoldi de Alveldia sunt
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1450

description: Öffentliche Bibliothek der Universität Basel
description: Latein
description: Digitalisierung=Digitization=Numérisation Okt. 2022 TIFF
description: Verzeichnung=Description=Inventaire 2008 Titel, Jahr, Sprache, Signatur, Vorbesitzer nach: Meyer/Burckhardt
description: Verzeichnung=Description=Inventaire Okt. 2022 Minimalniveau nach: Meyer/Burckhardt
description: Erschliessungsniveau Minimalniveau
Trinklieder von Wilhelm [Wackernagel]
Creators: name: Fröhlich, Friedrich Theodor
name: Wackernagel, Wilhelm
Publisher: name: [s.n.]
Year: 1831

description: [Friedrich Theodor Fröhlich]
description: Datierung: Nr. 44: 22.VI.31 ; Nr. 45: 23.VI.1831 ; Nr. 46: 30.VI.31 ; Nr. 47 undatiert ; Nr. 48: 20.8.31
description: Geschenk 1937 *37,1440 Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Die Nummerierung in Feld 505 entspricht der künstlichen Nummerierung in der Sammelmappe kr XI 79 (18.10.2011/BS UB/jpl)
description: Verzeichnung=Description=Inventaire 2010 Übernahme Rekatalogis. AK UB durch Medea 2002-2005
description: Digitalisierung=Digitization=Numérisation Juli 2024 TIFF