cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Semiconductor Laser Linewidth Theory Revisited
Creators: name: Wenzel, Hans
name: Kantner, Markus
name: Radziunas, Mindaugas
name: Bandelow, Uwe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: More and more applications require semiconductor lasers distinguished not only by large modulation bandwidths or high output powers, but also by small spectral linewidths. The theoretical understanding of the root causes limiting the linewidth is therefore of great practical relevance. In this paper, we derive a general expression for the calculation of the spectral linewidth step by step in a self-contained manner. We build on the linewidth theory developed in the 1980s and 1990s but look from a modern perspective, in the sense that we choose as our starting points the time-dependent coupled-wave equations for the forward and backward propagating fields and an expansion of the fields in terms of the stationary longitudinal modes of the open cavity. As a result, we obtain rather general expressions for the longitudinal excess factor of spontaneous emission ($K$-factor) and the effective $α$-factor including the effects of nonlinear gain (gain compression) and refractive index (Kerr effect), gain dispersion and longitudinal spatial hole burning in multi-section cavity structures. The effect of linewidth narrowing due to feedback from an external cavity often described by the so-called chirp reduction factor is also automatically included. We propose a new analytical formula for the dependence of the spontaneous emission on the carrier density avoiding the use of the population inversion factor. The presented theoretical framework is applied to a numerical study of a two-section distributed Bragg reflector laser.
description: semiconductor laser, spectral linewidth, coupled-wave equations, traveling wave model, noise, Langevin equations, Henry factor, Petermann factor, chirp reduction factor, population inversion factor
Clustering features of $^9$Be, $^{14}$N, $^7$Be, and $^8$B nuclei in relativistic fragmentation
Creators: name: Artemenkov, D. A.
name: Shchedrina, T. V.
name: Stanoeva, R.
name: Zarubin, P. I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Recent studies of clustering in light nuclei with an initial energy above 1 A GeV in nuclear treack emulsion are overviewed. The results of investigations of the relativistic $^9$Be nuclei fragmentation in emulsion, which entails the production of He fragments, are presented. It is shown that most precise angular measurements provided by this technique play a crucial role in the restoration of the excitation spectrum of the $α$ particle sysytem. In peripheral interactions $^9$Be nuclei are dissociated practically totally through the 0$^+$ and 2$^+$ states of the $^8$Be nucleus. The results of investigations of the dissociation of a $^{14}$N nucleus of momentum 2.86 A GeV/c in emulsion are presented as example of more complicated system. The momentum and correlation characteristics of $α$ particles for the $^{14}$N$\to3α+X$ channel in the laboratory system and the rest systems of 3$α$ particles were considered in detail. Topology of charged fragments produced in peripheral relativistic dissociation of radioactive $^8$B, $^7$Be nuclei in emulsion is studied.
description: 14 pages, 6 figures, 4 tables, International Symposium on Exotic Nuclei (EXON-2006), 17-22 July, 2006, Khanty-Mansiysk, Russia
Linking the X-ray timing and spectral properties of the glitching AXP 1RXS J170849-400910
Creators: name: Israel, G. L.
name: Gotz, D.
name: Zane, S.
name: Dall'osso, S.
name: Rea, N.
name: Stella, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Previous studies of the X-ray flux and spectral properties of 1RXS J170849-400910 showed hints of a possible correlation with the spin glitches that occurred in 1999 and 2001. However, due to the sparseness of spectral measurements and the paucity of detected glitches no firm conclusion could be drawn. We retrieved and analysed archival XTE pointings of 1RXS J170849-400910 covering the time interval between January 2003 and June 2006 and carried out a detailed timing analysis by means of phase fitting techniques. We detected two relatively large glitches Delta nu / nu of 1.2 and 2.1 10^-6 occurred in January and June 2005. Interestingly, the occurrence times of these glitches are in agreement with the predictions made in our previous studies. This finding strongly suggests a connection between the flux, spectral and timing properties of 1RXS J170849-400910.
description: Submitted to A&A, 4 pages; results presented at the INT meeting "The Neutron Star Crust and Surface: Observations and Models" on June 27; referee comments added
Introducing a New Methodology to Deal with Gentrification in Urban Neighborhoods: Case study of Fatimid Cairo and Heliopolis
Creators: name: Salah Eldaidamony Ahmad, Muhammad
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2021
Subjects: Gentrification
Urban Neighbourhoods
Gentrification Indicators List (GIsL)
Real Estate Development
Historical/Cultural Tourism
Geographies of Gentrification
Socio-Cultural Analysis
Economic
Physical Appearances

description: Since many urban development projects aim to improve the urban life of neighbourhoods. Therefore, gentrification is one of the notions which deals with urban neighbourhoods targeting similar aims. But, gentrification does not develop everywhere the same, it has many different aspects social, cultural, economic and political. Those aspects define the process of gentrification and how it develops in urban neighbourhoods. The lack of knowledge to the notion of gentrification generates a challenging subject, that needs investigation and research. However, as the role of gentrification in urban neighbourhoods is vital and essential, the consequences are also significant. The most significant consequence is displacement; while the research focus is not to deal with this issue. The focus of the research is to discover gentrification process in urban neighbourhoods, proof its existence and create a comprehensive approach to deal with the process. This approach provides a tool for decision makers first; to expect possible gentrification location, second; to deal with gentrification in already gentrified neighbourhoods and third; to maximize gentrification positive consequences and minimize its negative ones. Thus, the methodology used both qualitative and quantitative approaches to analyse the gentrification situation in two old districts of Cairo, Elgamalia and Heliopolis. Accordingly, the tools and methods used are; documentation, archival records, interviews, sample survey, direct observations, socio-cultural, economic, political, demographic, housing circumstances, and physical analysis were used in this research. Meanwhile the conclusions showed that both case studies witnessed gentrification process differently. In Elgamalia, gentrification is lead by commercial activities, while in Heliopolis it is more financial and residential gentrification. In addition, the research achieved its main objectives, presented in the comprehensive theoretical framework and the Gentrification Indicators List (GIsL) which will allow decision makers to deal with the notion of gentrification in urban neighbourhoods in Egypt.
Blazar Demographics with MOJAVE and GLAST
Creators: name: Lister, Matthew L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: MOJAVE is a long term VLBA program to investigate the kinematics and polarization evolution of a complete sample of 133 active galactic nuclei selected on the basis of compact, relativistically beamed jet emission at 15 GHz. By fitting to the apparent distributions of superluminal speed and jet luminosity, we can constrain the Lorentz factor distribution and intrinsic luminosity function of the radio-selected blazar parent population. These low-energy peaked blazars formed a significant fraction of all EGRET detections, and should figure prominently in the GLAST source catalog. Using simple models, we investigate the predicted distribution of GLAST blazars in the gamma-ray/radio flux density plane, and describe an extension of the MOJAVE survey that will provide extensive parsec-scale jet information in complete regions of this plane. We find that if a population of intrinsically radio bright yet gamma-ray weak blazars exists, its signal will be largely wiped out by the large gamma-ray flux scatter associated with Doppler beaming.
description: 2 pages; to appear in Proc. of First GLAST Symposium (Stanford, Feb. 5-8, 2007), eds. S.Ritz, P.F. Michelson, and C.Meegan, AIP Conf. Series
Super-shell structures and pairing in ultracold trapped Fermi gases
Creators: name: Ogren, M.
name: Heiselberg, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We calculate level densities and pairing gaps for an ultracold dilute gas of fermionic atoms in harmonic traps under the influence of mean field and anharmonic quartic trap potentials. Super-shell structures, which were found in Hartree-Fock calculations, are calculated analytically within periodic orbit theory as well as from WKB calculations. For attractive interactions, the underlying level densities are crucial for pairing and super-shell structures in gaps are predicted.
description: 4 pages, 2 figures.
$z$-Classes of Isometries of The Hyperbolic Space
Creators: name: Gongopadhyay, Krishnendu
name: Kulkarni, Ravi S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: Let $G$ be a group. Two elements $x, y$ are said to be {\it $z$-equivalent} if their centralizers are conjugate in $G$. The class equation of $G$ is the partition of $G$ into conjugacy classes. Further decomposition of conjugacy classes into $z$-classes provides an important information about the internal structure of the group. Let $I(\H^n)$ denote the group of isometries of the hyperbolic $n$-space. We show that the number of $z$-classes in $I(\H^n)$ is finite. We actually compute their number, cf. theorem 1.3. We interpret the finiteness of $z$-classes as accounting for the finiteness of "dynamical types" in $I(\H^n)$. Along the way we also parametrize conjugacy classes. We mainly use the linear model for the hyperbolic space for this purpose. This description of parametrizing conjugacy classes appears to be new.
description: accepted by Conform. Geom. Dyn
The Continuum and Leading Twist Limits of Parton Distribution Functions in Lattice QCD
Creators: name: Karpie, Joseph
name: Orginos, Kostas
name: Radyushkin, Anatoly
name: Zafeiropoulos, Savvas
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this study, we present continuum limit results for the unpolarized parton distribution function of the nucleon computed in lattice QCD. This study is the first continuum limit using the pseudo-PDF approach with Short Distance Factorization for factorizing lattice QCD calculable matrix elements. Our findings are also compared with the pertinent phenomenological determinations. Inter alia, we are employing the summation Generalized Eigenvalue Problem (sGEVP) technique in order to optimize our control over the excited state contamination which can be one of the most serious systematic errors in this type of calculations. A crucial novel ingredient of our analysis is the parameterization of systematic errors using Jacobi polynomials to characterize and remove both lattice spacing and higher twist contaminations, as well as the leading twist distribution. This method can be expanded in further studies to remove all other systematic errors.
description: 56 pages, 29 figures
Atomic scale study of silver sulfide leaching with cyanide and thiourea
Creators: name: Bernaola-Flores, Roxana
name: Silva-Quiñones, Dhamelyz
name: Balbuena, Perla B.
name: Rodríguez-Reyes, Juan Carlos F.
name: Tarazona-Vasquez, Francisco
Publisher: name: Faculty of Geoengineering, Mining and Geology, Wrocław University of Technology, Wrocław
Year: 2019
Subjects: leaching, cyanidation, thioureation, DFT, cluster models, Ag2S

description: Physicochemical Problems of Mineral Processing; ISSN 2084-4735
Quantum non-local effects with Bose-Einstein condensates
Creators: name: Laloë, Franck
name: Mullin, William J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study theoretically the properties of two Bose-Einstein condensates in different spin states, represented by a double Fock state. Individual measurements of the spins of the particles are performed in transverse directions, giving access to the relative phase of the condensates. Initially, this phase is completely undefined, and the first measurements provide random results. But a fixed value of this phase rapidly emerges under the effect of the successive quantum measurements, giving rise to a quasi-classical situation where all spins have parallel transverse orientations. If the number of measurements reaches its maximum (the number of particles), quantum effects show up again, giving rise to violations of Bell type inequalities. The violation of BCHSH inequalities with an arbitrarily large number of spins may be comparable (or even equal) to that obtained with two spins.
description: version published, with a shorter abstract to fit into the 9 lines of PRL, one more reference, and minor changes
Low mass visual binaries in the solar neighbourhood: The case of HD141272
Creators: name: Eisenbeiss, T.
name: Seifahrt, A.
name: Mugrauer, M.
name: Schmidt, T. O. B.
name: Neuhaeuser, R.
name: Roell, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We search for stellar and substellar companions of young nearby stars to investigate stellar multiplicity and formation of stellar and substellar companions. We detect common proper-motion companions of stars via multi-epoch imaging. Their companionship is finally confirmed with photometry and spectroscopy. Here we report the discovery of a new co-moving (13 sigma) stellar companion ~17.8 arcsec (350 AU in projected separation) north of the nearby star HD141272 (21 pc). With EMMI/NTT optical spectroscopy we determined the spectral type of the companion to be M3+-0.5V. The derived spectral type as well as the near infrared photometry of the companion are both fully consistent with a 0.26+-0.07 Msol dwarf located at the distance of HD141272 (21 pc). Furthermore the photometry data rules out the pre-main sequence status, since the system is consistent with the ZAMS of the Pleiades.
description: 6 pages, 6 figures
Eating in anorexia nervosa and bulimia : an application of the tri-partite model of anxiety
Creators: name: Buree, Barbara Ursula
Publisher: name: University of British Columbia
Year: 2010

description: Although many factors have been Implicated in the etiology and maintenance of anorexia nervosa and bulimia, anxiety, particularly in the context of eating, may be critical. Applying the tri-partite model of anxiety, this study was designed to assess anxiety before, during, and after eating in eating disorder and normal control subjects. The experimental eating procedure was preceded by a neutral task. Four groups of ten female subjects each participated: normal-weight females, restricting-anorexics, bulimic-anorexics, and bulimics. Anxiety was assessed by self-report (ratings of pleasure, arousal, and anxiety), psychophysiological (heart rate and skin conductance) and behavioural (food consumption) measures. Controls reported themselves to be non-anxious throughout the study arid ate almost all of the small test meal. Somewhat surprisingly, physiological arousal (especially heart rate) was high during eating. During the neutral task, heart rate declined slightly in all groups. The eating disorder groups indicated a high level of anxiety throughout the study which showed a trend to increase further during eating. In addition, anorexics and bulimics described dysfunctional beliefs regarding the effects of eating on body shape and weight. Similar to controls, physiological arousal was high during eating. Overall, heart rate proved to be a more useful measure of arousal than skin conductance because many anorexics were hyporesponsive. Restricting-anorexics ate the least amount, bulimic-anorexics ate slightly more, and bulimics ate similar amounts to controls. Thus, food consumption was probably associated with weight status. Several conclusions were drawn. Women with eating disorders have a high level of general anxiety probably because of a conflict between biological pressures to eat and fears of weight gain. The high physiological arousal during eating appears to reinforce perceptions of anxiety. The eating disorder groups showed different degrees of concordance among measures of anxiety. Borrowing from the research on phobias, therapeutic procedures such as cognitive therapy, progressive relaxation, and exposure treatments can address the different components of anxiety anorexics and bulimics experience during eating.
title:  Altered Gait Mechanics in Marfan Syndrome
Creators: name: Sharp, Amara
Publisher: name: University of Kentucky Libraries
Year: 2024
Subjects: classificationCode: 3.3
subject: FOS: Health sciences

description: FBN1 is a gene responsible for the production of fibrillin, a major component of connective tissue throughout the body including skeletal muscle tissue. In individuals with Marfan Syndrome these mutations in FBN1 result in widespread muscle weakness and a correspondingly higher incidence of lower extremity joint pain. Despite the widespread musculoskeletal impacts of Marfan Syndrome there is a dearth of research on the potential impacts of Marfan Syndrome on gait mechanics that may be related to the high incidence of lower extremity joint pain in the Marfan Syndrome population. Therefore, the purpose of this study was to determine the potential biomechanical alterations during gait in individuals with Marfan Syndrome and asymptomatic, healthy controls. Subjects underwent three-dimensional gait analysis at a fixed speed of 1.35 m•s-1. In Aim 1, between-group differences were assessed in hip-related patient reported outcomes and the hip Total Joint Moment. In Aim 2, vector coding was used to assess hip, knee and ankle joint coordination patterns. Our results show that individuals with Marfan Syndrome walk with altered kinetics and kinematics compared to asymptomatic, healthy controls. Further research should assess more demanding activities of daily living to assess the impact of Marfan Syndrome on lower extremity joint pain.
description: © 2024 Amara Sharp
title: Oesophageal gastrointestinal stromal tumour (GIST)
Creators: name: Poças, Pedro
Publisher: name: EURORAD
Year: 2024
Subjects: subject: Chest imaging
subject: Gastrointestinal tract
subject: Stomach (incl. Oesophagus)
subject: CT
subject: Clinical Case

description: Clinical History: An asymptomatic 74-year-old woman with a history of ankylosing spondylitis and breast cancer underwent a thoracoabdominopelvic computed tomography (CT) for oncologic follow-up. This was her first CT scan at our institution and we did not have access to previous exams.

description: 74 years, female
A Survey on End-User Robot Programming
Creators: name: Ajaykumar, Gopika
name: Steele, Maureen
name: Huang, Chien-Ming
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: As robots interact with a broader range of end-users, end-user robot programming has helped democratize robot programming by empowering end-users who may not have experience in robot programming to customize robots to meet their individual contextual needs. This article surveys work on end-user robot programming, with a focus on end-user program specification. It describes the primary domains, programming phases, and design choices represented by the end-user robot programming literature. The survey concludes by highlighting open directions for further investigation to enhance and widen the reach of end-user robot programming systems.
description: 35 pages, 1 figure
On the (non) existence of a price equilibrium in delegation games with relative performance compensation
Creators: name: Kopel, Michael
name: Lambertini, Luca
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: SECS-P/01 Economia politica

description: We show that Miller and Pazgal.s (2001) model of strategic delegation, in which managerial incentives are based upon relative performance, is affected by a non-existence problem which has impact on the price equilibrium. The undercutting incentives generating this result are indeed similar to those affecting the stability of price cartels.
An Unbiased Survey of 500 Nearby Stars for Debris Disks: A JCMT Legacy Program
Creators: name: Matthews, B. C.
name: Greaves, J. S.
name: Holland, W. S.
name: Wyatt, M. C.
name: Barlow, M. J.
name: Bastien, P.
name: Beichman, C. A.
name: Biggs, A.
name: Butner, H. M.
name: Dent, W. R. F.
name: Di Francesco, J.
name: Dominik, C.
name: Fissel, L.
name: Friberg, P.
name: Gibb, A. G.
name: Halpern, M.
name: Ivison, R. J.
name: Jayawardhana, R.
name: Jenness, T.
name: Johnstone, D.
name: Kavelaars, JJ
name: Marshall, J. L.
name: Phillips, N.
name: Schieven, G.
name: Snellen, I. A. G.
name: Walker, H. J.
name: Ward-Thompson, D.
name: Weferling, B.
name: White, G. J.
name: Yates, J.
name: Zhu, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the scientific motivation and observing plan for an upcoming detection survey for debris disks using the James Clerk Maxwell Telescope. The SCUBA-2 Unbiased Nearby Stars (SUNS) Survey will observe 500 nearby main sequence and sub-giant stars (100 of each of the A, F, G, K and M spectral classes) to the 850 micron extragalactic confusion limit to search for evidence of submillimeter excess, an indication of circumstellar material. The survey distance boundaries are 8.6, 16.5, 22, 25 and 45 pc for M, K, G, F and A stars, respectively, and all targets lie between the declinations of -40 deg to 80 deg. In this survey, no star will be rejected based on its inherent properties: binarity, presence of planetary companions, spectral type or age. This will be the first unbiased survey for debris disks since IRAS. We expect to detect ~125 debris disks, including ~50 cold disks not detectable in current shorter wavelength surveys. A substantial amount of complementary data will be required to constrain the temperatures and masses of discovered disks. High resolution studies will likely be required to resolve many of the disks. Therefore, these systems will be the focus of future observational studies using a variety of observatories to characterize their physical properties. For non-detected systems, this survey will set constraints (upper limits) on the amount of circumstellar dust, of typically 200 times the Kuiper Belt mass, but as low as 10 times the Kuiper Belt mass for the nearest stars in the sample (approximately 2 pc).
description: 11 pages, 7 figures (3 color), accepted by the Publications of the Astronomical Society of the Pacific
Are Self-regarding Subjects More Strategic?
Creators: name: Arruñada, Benito
name: Casari, Marco
name: Pancotto, Francesca
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: SECS-P/02 Politica economica

description: To investigate the relationship between the depth of strategic thinking and social preferences we ask subjects in an experiment to perform dictator games and a guessing game. The guessing game measures depth of strategic thinking while dictator games control for social preferences. When performing a comparison within the same degree of strategic reasoning, self-regarding subjects show more strategic sophistication than other subjects.
Strangers and pilgrims in Lotus Land : conservative Protestantism in British Columbia, 1917-1981
Creators: name: Burkinshaw, Robert Kenneth
Publisher: name: University of British Columbia
Year: 2010

description: This study examines the growth of conservative Protestantism, or evangelicalism, in British Columbia from 1917, the beginning of open conflict with theological liberalism, to 1981. The period witnessed the development of evangelical institutions from rudimentary beginnings before 1920 to the rise of a complex network by the 1970's. Numerically, conservative denominations in British Columbia countered a national trend and nearly doubled their proportion of the population from 1921 to 1981. Towards the end of the period, weekly attendance at conservative churches surpassed that in mainline Protestant denominations. This study has a two-fold purpose. The narrative seeks to recount significant features of the denominational, institutional and numerical development of evangelicalism in British Columbia. At the same time, the crucial factors in its development will be analyzed, particularly those which explain its growth. Explanations which focus exclusively on socio-economic factors or American influences are rejected. Both played significant roles but neither are able to fully explain the growth and other factors must be considered in addition to them. Four are identified as playing particularly significant roles: 1. a loyalty to values and emphases which appeared endangered by modernism; 2. patterns of immigration which added relatively large numbers of evangelicals who soon identified with the wider evangelicalism, 3. larger than average family sizes and high rates of retention of children within conservative churches and 4. institutional factors, particularly the strenuous efforts spent in establishing large numbers of new congregations throughout the province. Common to all four factors is the sense shared by conservative Protestants that they were separate from the "world." Unlike religious liberals who sought to preserve Christianity by accommodating to modernism, conservatives were alienated by modernism and sought to preserve traditional evangelicalism in the face of massive cultural change. In British Columbia, which was characterized by an unusual degree of transiency, materialism and secularism, the conservative approach proved more successful. Neither branch of Protestantism grew as rapidly as the "no religion" segment of the population but, while mainline Protestantism declined proportionately, evangelicals evidenced a certainty and simplicity of conviction and action that appealed to an increasing minority of the population.
D1.3 First Year Management Report
Creators: name: Barkhausen Institut
Publisher: name: Zenodo
Year: 2024

description: This document connects the deliverables submitted in year one to the project objectives. It reports work performed within the work packages, summarizes achievements, and risks, and finally concludes with a statement from the project’s Advisory Board.

This deliverable is submitted and under review.

COREnext is a Horizon Europe project under Grant Agreement number 101092598.
«A casa del Ziraldo». Sulla messa in scena dell’«Arrenopia».
Creators: name: Colombo, Davide
Publisher: name: Studi giraldiani. Letteratura e teatro
Year: 2023
Subjects: Giraldi, casa di Giraldi, Teatro, Tragedia Arrenopia

description: «A casa del Ziraldo». Sulla messa in scena dell’«Arrenopia»


Questo studio esamina le sparse notizie relative all’unica messa in scena attestata dell’Arrenopia di Giraldi Cinthio tra febbraio e marzo del 1563. Le fonti ricondotte ad unità sono di tre tipi: opere giraldiane (in particolare Carteggio, Ecatommiti, tragedie), documenti d’archivio conservati a Ferrara, Modena e Torino, spigolature di eruditi tra Cinque e Ottocento. Particolare attenzione è prestata al luogo della première, il cortile della casa ferrarese di Giraldi, attigua a Palazzo del Paradiso e raggiungibile attraverso un cavalcavia sospeso. L’ubicazione della casa è studiata incrociando fonti archivistiche e testimonianze cartografiche, riprodotte in appendice. Nella stessa luce sono incidentalmente ridiscussi alcuni aspetti della biografia di Giraldi.


 


«A casa del Ziraldo». About the staging of the «Arrenopia».


This study examines the scattered information relating to the single attested staging of Giraldi Cinthio’s Arrenopia between February and March 1563. Three types of sources are brought back to unity: Giraldian works (in particular letters, Ecatommiti, tragedies), archival documents preserved in Ferrara, Modena and Turin, researches by scholars between the sixteenth and nineteenth centuries. Particular attention is paid to the première’s location, the courtyard of Giraldi’s house in Ferrara, near to Palazzo del Paradiso and reachable through a suspended overpass. The location of his house is studied by crossing archival sources and cartographic evidence, reproduced in the appendix. In the same light, some aspects of Giraldi’s biography are incidentally reconsidered.


 
description: Studi giraldiani. Letteratura e teatro, V. 9 (2023)
Sterile neutrinos at the CNGS
Creators: name: Donini, A.
name: Maltoni, M.
name: Meloni, D.
name: Migliozzi, P.
name: Terranova, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the potential of the CNGS beam in constraining the parameter space of a model with one sterile neutrino separated from three active ones by an $\mathcal{O}(\eVq)$ mass-squared difference, $\Dmq_\Sbl$. We perform our analysis using the OPERA detector as a reference (our analysis can be upgraded including a detailed simulation of the ICARUS detector). We point out that the channel with the largest potential to constrain the sterile neutrino parameter space at the CNGS beam is $ν_μ\to ν_τ$. The reason for that is twofold: first, the active-sterile mixing angle that governs this oscillation is the less constrained by present experiments; second, this is the signal for which both OPERA and ICARUS have been designed, and thus benefits from an extremely low background. In our analysis we also took into account $ν_μ\to ν_e$ oscillations. We find that the CNGS potential to look for sterile neutrinos is limited with nominal intensity of the beam, but it is significantly enhanced with a factor 2 to 10 increase in the neutrino flux. Data from both channels allow us, in this case, to constrain further the four-neutrino model parameter space. Our results hold for any value of $\Dmq_\Sbl \gtrsim 0.1 \eVq$, \textit{i.e.} when oscillations driven by this mass-squared difference are averaged. We have also checked that the bound on $θ_{13}$ that can be put at the CNGS is not affected by the possible existence of sterile neutrinos.
description: Major modifications; new analysis after MiniBooNE data release: 21 pages, 5 figures
NFDI4Chem 5th Consortium Meeting Workshops: Chemotion LabIMotion
Creators: name: Huang, Pei-Chi
name: Lin, Chia-Lin
name: Jung, Nicole
Publisher: name: Zenodo
Year: 2024
Subjects: NFDI4Chem
Chemotion
LabIMotion
Chemistry

description: This presentation provides an overview of Chemotion LabIMotion and illustrates the forthcoming vocabulary functionality - a step forward in enhancing FAIR chemistry research data management and integration. The report was first presented at the NFDI4Chem Consortium 5.0 conference in Halle (Saale).
The Galactic Deuterium Abundance and Dust Depletion: Insights From an Expanded Ti/H Sample
Creators: name: Ellison, Sara L.
name: Prochaska, Jason X.
name: Lopez, Sebastian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The primordial abundance of deuterium (D/H) yields a measure of the density of baryons in the universe and is an important complement to determinations from cosmic microwave background (CMB) experiments. Indeed, the current small sample of high redshift D/H measurements from quasar absorption line studies are in excellent agreement with CMB-derived values. Conversely, absorption line measurements of the Galactic D/H ratio in almost 50 stellar sightlines show a puzzlingly large scatter outside the Local Bubble which is difficult to explain simply by astration from the primordial value. Here, we investigate the dust depletion scenario by studying the correlation between D/H and the abundance of titanium, one of the most refractory elements readily observed in the ISM. With a sample 3 times larger than previous work, we confirm a correlation between Ti/H and D/H at the 97% confidence level. However, the magnitude of this dependence is difficult to reconcile with a simple model of dust depletion for two reasons. First, contrary to what is expected from local depletion rates, the gradient of the highly refractory Ti is much shallower than that observed for Fe and Si. Second, we do not observe the established tight, steep correlation between [Ti/H] and the mean volume density of hydrogen. Therefore, whilst dust remains a plausible explanation for the local D/H variations, the abundances of at least some of the refractory elements do not provide unanimous support for this scenario. We also argue that the correlations of [Si/H], [Fe/H], and [Ti/H] with D/H are inconsistent with a simple infall model of low metallicity gas with approximately solar abundances as the dominant cause for D variations.
description: Accepted for publication in MNRAS, 11 pages
Appunti sulla miscellanea poetica latina di Giraldi (Ferrara, Rosso, 1537)
Creators: name: Villari, Susanna
Publisher: name: Studi giraldiani. Letteratura e teatro
Year: 2023
Subjects: Giraldi, Poesia latina, Cinquecento, Ferrara, Poematia

description: Appunti sulla miscellanea poetica latina di Giraldi (Ferrara, Rosso, 1537)


L’articolo, attraverso un excursus sul retroterra culturale dei primi decenni del XVI secolo, e con particolare riferimento all’ambiente ferrarese, inaugura una lettura dei testi contenuti nella raccolta di poesie latine di Giovan Battista Giraldi Cinthio, edita per la prima volta a Ferrara nel 1537, nella prospettiva di successivi e accurati affondi, anche con obiettivi critico-editoriali.


 


Notes on Giraldi’s latin poetic miscellanea (Ferrara, Rosso, 1537).


The paper, through an excursus on the cultural background of the first decades of the 16th century, and with particular reference to Ferrara’s environment, inaugurates a reading of the texts contained in the book of Giovan Battista Giraldi Cinthio’s latin poems, published for the first time in Ferrara in 1537, in the perspective of subsequent and accurate inquiries, also with critical-editorial objectives.
description: Studi giraldiani. Letteratura e teatro, V. 9 (2023)
Giovan Battista Giraldi Cinthio e il ciclo dinastico estense della “delizia” di Copparo
Creators: name: Fattorini, Gabriele
Publisher: name: Studi giraldiani. Letteratura e teatro
Year: 2023
Subjects: Ferrara, Copparo, Ercole II d’Este, Ritratti degli Estensi, Camillo Filippi, Girolamo da Carpi, Benvenuto Tisi (Garofalo), Giovan Battista Giraldi Cinthio, De Ferraria et Atestinis Principibus Commentariolum, Pirro Ligorio

description: Giovan Battista Giraldi Cinthio e il ciclo dinastico estense della “delizia” di Copparo


Oggi rimane soltanto un massiccio torrione del grande palazzo che Ercole II d’Este volle ristrutturare negli anni quaranta del Cinquecento a Copparo, poco lontano da Ferrara. All’interno si poteva ammirare il perduto «salotto in crose», dove Camillo Filippi aveva dipinto realistiche vedute delle terre estensi, e Girolamo da Carpi, con l’aiuto di Benvenuto Tisi detto il Garofalo, una serie di ritratti dei signori di Ferrara. Alle immagini di tale ciclo dinastico allude ripetutamente Giovan Battista Giraldi Cinthio, nel ripercorrere le biografie dei signori d’Este nel De Ferraria et Atestinis Principibus Commentariolum (1556). Un’indagine su quest’opera (volgarizzata da Ludovico Domenichi nel 1556) risulta utile per provare a comprendere le caratteristiche delle perdute pitture murali, i modelli utilizzati per certi ritratti, e la passione degli Estensi per le vicende della propria famiglia, che di lì a non molto stimolò ulteriori indagini storiche e si manifestò in un esteso ciclo concepito da Pirro Ligorio per il cortile del Castello di Ferrara, di cui resta ben poco.


 


Giovan Battista Giraldi Cinthio and the Este dynastic cycle in the “delizia” of Copparo


Today only a massive tower remains of the enormous palace which Ercole II d’Este rebuilt in the 1540s in Copparo, not far from Ferrara. Inside there used to be a famous «salotto in crose», where Camillo Filippi painted a series of realistic views of the Este’s lands, and Girolamo da Carpi, with the help of Benvenuto Tisi known as Garofalo, represented a sequence of portraits of the lords of Ferrara. Giovan Battista Giraldi Cinthio alludes to the images of this dynastic cycle, by retracing the biographies of the lords of the Este family in the De Ferraria et Atestinis Principibus Commentariolum (1556). An investigation into this work (translated into «volgare» by Ludovico Domenichi in 1556) is useful in order to try to understand the characteristics of the lost wall paintings, the models chosen for certain portraits, and the Estensi’s passion for the past of their family, that not long after stimulated further historical investigations and an extensive cycle conceived by Pirro Ligorio for the courtyard of the Castle of Ferrara, of which very little remains.
description: Studi giraldiani. Letteratura e teatro, V. 9 (2023)
Dual billiards, Fagnano orbits and regular polygons
Creators: name: Troubetzkoy, Serge
Publisher: name: arXiv
Year: 2007
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We study the notion of Fagnano orbits for dual polygonal billiards. We used them to characterize regular polygons and we study the iteration of the developing map.
Agnolo Segni, Lezioni intorno alla poesia. Censimento: «Poetica» aristotelica: edizioni e commenti del XVI secolo
Creators: name: Ellero, Maria Pia
Publisher: name: Studi giraldiani. Letteratura e teatro
Year: 2023
Subjects: Poetica aristotelica, Cinquecento, Agnolo Segni, Lezioni intorno alla poesia

description: Agnolo Segni, «Lezioni intorno alla poesia»


Nel contesto del censimento delle edizioni e commenti cinquecenteschi della Poetica di Aristotele, si presenta la scheda relativa a Agnolo Segni, Lezioni intorno alla poesia.


 


Agnolo Segni, «Lezioni intorno alla poesia»


In the context of the census of sixteenth century Aristotele’s Poetica editions and commentaries, we publish the record of Agnolo Segni’s Lezioni intorno alla poesia.
description: Studi giraldiani. Letteratura e teatro, V. 9 (2023)
Recensione a La novella italiana dal «Decameron» al Rinascimento, a cura di Elisa Curti e Flavia Palma, «Schede Umanistiche», XXXVI, 1 (2022)
Creators: name: Depoli, Giulia
Publisher: name: Studi giraldiani. Letteratura e teatro
Year: 2023
Subjects: Novellistica, Medioevo, Rinascimento

description: Studi giraldiani. Letteratura e teatro, V. 9 (2023)
Recensione a C. Confalonieri, “Queste spaziose loggie”. Architettura e poetica nella tragedia italiana del Cinquecento, Napoli, Loffredo editore, 2022
Creators: name: Tramontana, Alessandra
Publisher: name: Studi giraldiani. Letteratura e teatro
Year: 2023
Subjects: Teatro, Tragedia, Architettura, Poetica, Filosofia

description: Studi giraldiani. Letteratura e teatro, V. 9 (2023)
Gavin Douglas's Prologues to his Eneados : the narrator in quest of a new homeland
Creators: name: Canitz, Auguste Elfriede Christa
Publisher: name: University of British Columbia
Year: 2010

description: In translating the Aeneid as faithfully as possible, Gavin Douglas saw himself as an innovator, breaking with the tradition of adaptation and instead presenting a faithful literary translation. In the Prologues to his Eneados Douglas discusses his theoretical principles, comments on the work of his predecessors in the transmission of Virgil in English, and raises issues pertinent to the contents of the Books of the Aeneid. However, the Prologues also reflect Douglas's perception of a conflict between his religious and artistic impulses, and show his gradual resolution of this conflict inherent in his dual role as critical artist and churchman. By placing Douglas's Prologues in the context of prologues by other medieval writers, Chapter I shows that Douglas's new approach to faithful literary translation is matched by his independence in the employment of conventional literary devices, which he revitalizes by using them in a meaningful way rather than applying them because custom so dictates. Chapter II focuses on the narrator in his various and divergent roles, especially those of the poet and priest; while these two roles initially seem to make conflicting demands on the translator-narrator, he eventually resolves the conflict and recognizes a sublime harmony between divine and human artistry. Chapter III examines Douglas's practice of translation in light of his own theory; even though Douglas tends to "modernize" Virgil, he produces a genuine translation in which his avowed aims are largely realized. Chapter IV focuses on the connexions of the individual Prologues with their respective Books and demonstrates that even though the translation itself is generally accurate, the interpolation of the Prologues with their re-interpretation of common archetypes as foreshadowings of Christian doctrine causes a radical transvaluing of the Aeneid as a Christian allegory. Chapter V shows that there is not only a linkage between the Prologues and Books, but that the Prologues are also connected to each other by the narrator's search for a theologically acceptable yet also artistically satisfying re-creation of a non-Christian work. Aeneas and the translator-narrator are thus engaged in parallel quests during which they have to overcome physical obstacles and resolve inner conflicts before they can reach their final destinations.
Low Surface Brightness Galaxies around the HDF-S: II. Distances and volume densities
Creators: name: Haberzettl, L.
name: Bomans, D. J.
name: Dettmar, R. -J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: With this study we aim at the spectroscopic verification of a photometrically selected sample of Low Surface Brightness (LSB) galaxy candidates in a field around the Hubble Deep Field-South (HDF-S). The sample helps to extend the parameter space for LSB galaxies to lower central surface brightnesses and to provide better estimates on the volume densities of these objects. To derive redshifts for the LSB candidates, long-slit spectra were obtained covering a spectral range from 3400Å to 7500Å. The observations have been obtained using the ESO 3.6m telescope, equipped with the EFOSC2 spectrograph. From the measured radial velocities, distances could be estimated. With this distance information, it is possible to differentiate between true LSB galaxies and higher redshift High Surface Brightness (HSB) galaxies which may contaminate the sample. A correction for the surface brightnesses can then be applied, accounting for the cosmological dimming effect (``Tolman Dimming''). We show that ~70% of the LSB candidates, selected based on their location in the color-color space, are real LSB galaxies. Their position in the color-color diagrams, therefore, indicate that the LSB galaxies have a different stellar population mix resulting from a different star formation history compared to HSBs. Our LSB galaxy sample consists only of large disk galaxies with scale-length between 2.5kpc and 7.3kpc. We confirm the flat central surface brightness distribution of previous surveys and extend this distribution down to central surface brightnesses of 27 B mag arcsec^-2.
description: 12 pages, 20 figures, accepted by A&A
Exactly solvable spin dynamics of an electron coupled to large number of nuclei and the electron-nuclear spin echo in a quantum dot
Creators: name: Kozlov, G. G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The model considered in the paper is used nowadays to describe spin dynamics of quantum dots after optical excitation. Based on the exact diagonalization of a model Hamiltonian, we solve the problems of the electron spin polarization decay and magnetic field dependence of the steady state polarization. The important role of the nuclear state is shown and methods of its calculation for different regimes of optical excitation are proposed. The effect of spin echo observed after application of the magnetic field $π$-pulse is predicted.
description: 5 figures. submitted to JETP
D5-brane in AdS black holes with nonzero gauge flux
Creators: name: Nagasaki, Koichi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find the probe D5-brane solution on the black home spacetime which is asymptomatically AdS_5 x S^5. These black holes have spherical, hyperbolic and toroidal structures. Depending on the gauge flux on the D5-brane, the D5-brane behaves differently. This By adding the fundamental string, the potential energy of the interface solution and the Wilson loop is given in the case of non zero gauge flux.
description: 15 pages, 14 figures, Typo corrected
msolve: A Library for Solving Polynomial Systems
Creators: name: Berthomieu, Jérémy
name: Eder, Christian
name: Din, Mohab Safey El
Publisher: name: arXiv
Year: 2021
Subjects: subject: Symbolic Computation (cs.SC)
subject: FOS: Computer and information sciences

description: We present a new open source C library \texttt{msolve} dedicated to solving multivariate polynomial systems of dimension zero through computer algebra methods. The core algorithmic framework of \texttt{msolve} relies on Gr\''obner bases and linear algebra based algorithms for polynomial system solving. It relies on Gr\''obner basis computation w.r.t.\ the degree reverse lexicographical order, Gr\''obner conversion to a lexicographical Gr\''obner basis and real solving of univariate polynomials. We explain in detail how these three main steps of the solving process are implemented, how we exploit \texttt{AVX2} instruction processors and the more general implementation ideas we put into practice to better exploit the computational capabilities of this algorithmic framework. We compare the practical performances of \texttt{msolve} with leading computer algebra systems such as \textsc{Magma}, \textsc{Maple}, \textsc{Singular} on a wide range of systems with finitely many complex solutions, showing that \texttt{msolve} can tackle systems which were out of reach by the computer algebra software state-of-the-art.
description: 2021 International Symposium on Symbolic and Algebraic Computation, Jul 2021, Saint-P{\'e}tersbourg, Russia