cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Homogeneous quantum cascade lasers operating as Terahertz frequency combs over their entire operational regime
Creators: name: Di Gaspare, Alessandra
name: Viti, Leonardo
name: Beere, Harvey E.
name: Ritchie, David D.
name: Vitiello, Miriam S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report a homogeneous quantum cascade laser (QCL) emitting at Terahertz (THz) frequencies, with a total spectral emission of about 0.6 THz centered around 3.3 THz, a current density dynamic range of Jdr=1.53, and a continuous wave output power of 7 mW. The analysis of the intermode beatnote unveils that the devised laser operates as optical frequency comb (FC) synthesizer over the whole laser operational regime, with up to 36 optically active laser modes delivering ~ 200 uW of optical power per comb tooth, a power level unreached so far in any THz QCL FC. A stable and narrow single beatnote, reaching a minimum linewidth of 500 Hz, is observed over a current density range of 240 A/cm2, and even across the negative differential resistance region. We further prove that the QCL frequency comb can be injection locked with moderate RF power at the intermode beatnote frequency, covering a locking range of 1.2 MHz. The demonstration of stable FC operation, in a QCL, over the full current density dynamic range, and without any external dispersion compensation mechanism, makes our proposed homogenous THz QCL an ideal tool for metrological application requiring mode-hop electrical tunability and a tight control of the frequency and phase jitter.
description: 11 Pages, 5 Figures. This is the authors' version of the submitted article, published in its final form at https://doi.org/10.1515/nanoph-2020-0378
Futurismo: realidad en el cine-utopía en la realidad
Creators: name: Melendo Cruz, Ana
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: L'articolo prende in esame il rapporto tra futurismo, cinema e realtà  oggettiva, concentrandosi soprattutto sul cinema della modernità  italiano, per dimostrare che - malgrado alcuni degli assunti del  futurismo siano ancora attuali - le idee di questo movimento  d'avanguardia hanno trovato maggiore spazio sullo schermo piuttosto che  nel mondo reale. I progetti di Sant'Elia e i postulati degli altri  membri del futurismo italiano si adattano infatti perfettamente  all'estetica di opere come Metropolis (Id., 1926) di Fritz Lang o Il deserto rosso (1964) di Michelangelo Antonioni, che hanno contribuito a forgiare  l'immaginario urbano contemporaneo non meno delle creazioni dei "veri"  architetti. Obiettivo della presente analisi è indagare alcune delle  cause di tale fenomeno
description: Annali Online  Lettere - Ferrara, V 1 (2010)
A Solar System formation analogue in the Ophiuchus star-forming complex
Creators: name: Forbes, John C.
name: Alves, João
name: Lin, Douglas N. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Anomalies among the daughter nuclei of the extinct short-lived radionuclides (SLRs) in the calcium-aluminum-rich inclusions (CAIs) indicate that the Solar System must have been born near a source of the SLRs so that they could be incorporated before they decayed away. $γ$-rays from one such living SLR, $^{26}$Al, are detected in only a few nearby star-forming regions. Here we employ multi-wavelength observations to demonstrate that one such region, Ophiuchus, containing many pre-stellar cores that may serve as analogs for the emerging Solar System, is inundated with $^{26}$Al from the neighboring Upper-Scorpius association, and so may provide concrete guidance for how SLR enrichment proceeded in the Solar System complementary to the meteoritics. We demonstrate via Bayesian forward modeling drawing on a wide range of observational and theoretical results that this $^{26}$Al likely 1) arises from supernova explosions, 2) arises from multiple stars, 3) has enriched the gas prior to the formation of the cores, and 4) gives rise to a broad distribution of core enrichment spanning about two orders of magnitude. This means that if the spread in CAI ages is small, as it is in the Solar System, protoplanetary disks must suffer a global heating event.
description: Published in Nature Astronomy, August 16, 2021
Andrej Angrick: „Aktion 1005“. Spurenbeseitigung von NS-Massenverbrechen 1942–1945
Creators: name: Struve, Kai
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 3 (2020)
Machine learning application to Fermi-LAT data: sharpening all-sky map and emphasizing variable sources
Creators: name: Sato, Shogo
name: Kataoka, Jun
name: Ito, Soichiro
name: Kotoku, Jun'ichi
name: Taki, Masato
name: Oyama, Asuka
name: Toyoda, Takaya
name: Nakamura, Yuki
name: Yamamoto, Marino
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: A novel application of machine-learning (ML) based image processing algorithms is proposed to analyze an all-sky map (ASM) obtained using the Fermi Gamma-ray Space Telescope. An attempt was made to simulate a one-year ASM from a short-exposure ASM generated from one-week observation by applying three ML based image processing algorithms: dictionary learning, U-net, and Noise2Noise. Although the inference based on ML is less clear compared to standard likelihood analysis, the quality of the ASM was generally improved. In particular, the complicated diffuse emission associated with the galactic plane was successfully reproduced only from one-week observation data to mimic a ground truth (GT) generated from a one-year observation. Such ML algorithms can be implemented relatively easily to provide sharper images without various assumptions of emission models. In contrast, large deviations between simulated ML maps and GT map were found, which are attributed to the significant temporal variability of blazar-type active galactic nuclei (AGNs) over a year. Thus, the proposed ML methods are viable not only to improve the image quality of an ASM, but also to detect variable sources, such as AGNs, algorithmically, i.e., without human bias. Moreover, we argue that this approach is widely applicable to ASMs obtained by various other missions; thus, it has the potential to examine giant structures and transient events, both of which are rarely found in pointing observations.
description: 12 pages, 11 figures, accepted for publication in ApJ
Stellar proper motion and the timing of planetary transits
Creators: name: Rafikov, Roman R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Duration and period of transits in extrasolar planetary systems can exhibit long-term variations for a variety of reasons. Here we investigate how systemic proper motion, which steadily re-orients planetary orbit with respect to our line of sight, affects the timing of transits. We find that in a typical system with a period of several days proper motion at the level of 100 mas/yr makes transit duration vary at a rate ~10-100 ms/yr. In some isolated systems this variation is at the measurable level (can be as high as 0.6 s/yr for GJ436) and may exceed all other transit timing contributions (due to the general relativity, stellar quadrupole, etc.). In addition, proper motion causes evolution of the observed orbital period via the Shklovskii effect at a rate $\gtrsim 10$ $μ$s/yr for the nearby transiting systems (0.26 ms/yr in GJ436), which in some cases exceeds all other contributions to $\dot P$. Earth's motion around the Sun gives rise to additional periodic timing signal (even for systems with zero intrinsic proper motion) allowing a full determination of the spatial orientation of the planetary orbit. Unlike most other timing effects the proper motion signatures persist even in systems with zero eccentricity and get stronger as the planetary period increases. They should be the dominant cause of transit timing variations in isolated wide separation (periods of months) systems that will be sought by Kepler.
description: 7 pages, 2 tables, submitted to ApJ
MINERALOGICAL AND PETROGRAPHIC DESCRIPTION OF ORE AND COVERING ROCKS OF TAKHTAKORACHA DEPOSIT (SOUTHERN UZBEKISTAN)
Creators: name: Turakulov, A.U.
name: Musaev, A.M.
name: Jamalova, G.N.
name: Qodirov, S.X.
name: Razikov, О.Т
Publisher: name: Zenodo
Year: 2023

description: The mineralogical and petrographic composition of Takhtagoracha manganese mine and minerals covering them are shown in the article. Primary and oxidized secondary types of manganese ores have been determined, analyzing the data found in the existing literature, and additional information on the conditions of formation of the previously mentioned ore is provided based on the color-spectral analysis of minerals. Based on them, a conclusion was made about the genesis of the mine.
Quark structure of the $X(4500)$, $X(4700)$ and $χ_{\rm c}(4P,5P)$ states
Creators: name: Ferretti, J.
name: Santopinto, E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study some of the main properties (masses and open-flavor strong decay widths) of $4P$ and $5P$ charmonia. While there are two candidates for the $χ_{\rm c0}(4P,5P)$ states, the $X(4500)$ and $X(4700)$, the properties of the other members of the $χ_{\rm c}(4P,5P)$ multiplets are still completely unknown. With this in mind, we start to explore the charmonium interpretation for these mesons. Our second goal is to investigate if the apparent mismatch between the Quark Model (QM) predictions for $χ_{\rm c0}(4P,5P)$ states and the properties of the $X(4500)$ and $X(4700)$ mesons can be overcome by introducing threshold corrections in the QM formalism. According to our coupled-channel model results for the threshold mass shifts, the $χ_{\rm c0}(5P) \rightarrow X(4700)$ assignment is unacceptable, while the $χ_{\rm c0}(4P) \rightarrow X(4500)$ or $X(4700)$ assignments cannot be completely ruled out.
Series which are both max-plus and min-plus rational are unambiguous
Creators: name: Lombardy, Sylvain
name: Mairesse, Jean
Publisher: name: arXiv
Year: 2007
Subjects: subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: Consider partial maps from the free monoid into the field of real numbers with a rational domain. We show that two families of such series are actually the same: the unambiguous rational series on the one hand, and the max-plus and min-plus rational series on the other hand. The decidability of equality was known to hold in both families with different proofs, so the above unifies the picture. We give an effective procedure to build an unambiguous automaton from a max-plus automaton and a min-plus one that recognize the same series.
The intra-day Optical Monitoring of BL Lacerate Object 1ES 1218+304 at Its Highest X-ray Flux Level
Creators: name: Sun, S. S.
name: Li, H. L.
name: Yang, X.
name: Lü, J.
name: Xu, D. W.
name: Wang, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We here report a monitor of the BL Lac object 1ES 1218+304 in both B- and R-bands by the GWAC-F60A telescope in eight nights, when it was triggerd to be at its highest X-ray flux in history by the VERITAS Observatory and Swift follow-ups. Both ANOVA and $χ^2$-test enable us to clearly reveal an intra-day variability in optical wavelengths in seven out of the eight nights. A bluer-when-brighter chromatic relationship has been clearly identified in five out of the eight nights, which can be well explained by the shock-in-jet model. In addtion, a quasi-periodic oscilation phenomenon in both bands could be tentatively identified in the first night. A positive delay between the two bands has been revealed in three out of the eight nights, and a negative one in the other nights. The identfied minimum time delay enables us to estimate the $M_{\mathrm{BH}}=2.8\times10^7 \rm M_{\odot}$that is invalid.
description: 8 pages, 4 figures
World-sheet dynamics of ZZ branes
Creators: name: Ambjorn, Jan
name: Gesser, Jens A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show how non-compact space-time (ZZ branes) emerges as a limit of compact space-time (FZZT branes) for specific ratios between the square of the boundary cosmological constant and the bulk cosmological constant in the (2,2m-1) minimal model coupled to two-dimensional quantum gravity.
description: 14 pages
The Resolved Properties of Extragalactic Giant Molecular Clouds
Creators: name: Bolatto, Alberto D.
name: Leroy, Adam K.
name: Rosolowsky, Erik
name: Walter, Fabian
name: Blitz, Leo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use high spatial resolution observations of CO to systematically measure the resolved size-line width, luminosity-line width, luminosity-size, and the mass-luminosity relations of Giant Molecular Clouds (GMCs) in a variety of extragalactic systems. Although the data are heterogeneous we analyze them in a consistent manner to remove the biases introduced by limited sensitivity and resolution, thus obtaining reliable sizes, velocity dispersions, and luminosities. We compare the results obtained in dwarf galaxies with those from the Local Group spiral galaxies. We find that extragalactic GMC properties measured across a wide range of environments are very much compatible with those in the Galaxy. We use these results to investigate metallicity trends in the cloud average column density and virial CO-to-H2 factor. We find that these measurements do not accord with simple predictions from photoionization-regulated star formation theory, although this could be due to the fact that we do not sample small enough spatial scales or the full gravitational potential of the molecular cloud. We also find that the virial CO-to-H2 conversion factor in CO-bright GMCs is very similar to Galactic, and that the excursions do not show a measurable metallicity trend. We contrast these results with estimates of molecular mass based on far-infrared measurements obtained for the Small Magellanic Cloud, which systematically yield larger masses, and interpret this discrepancy as arising from large H2 envelopes that surround the CO-bright cores. We conclude that GMCs identified on the basis of their CO emission are a unique class of object that exhibit a remarkably uniform set of properties from galaxy to galaxy (abridged).
description: 21 pages, 7 figures, 4 tables (one of them electronic). The Astrophysical Journal, accepted. Revised to reflect changes made to proofs
The Dual-Axis Circumstellar Environment of the Type IIn Supernova 1997eg
Creators: name: Hoffman, Jennifer L.
name: Leonard, Douglas C.
name: Chornock, Ryan
name: Filippenko, Alexei V.
name: Barth, Aaron J.
name: Matheson, Thomas
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present multi-epoch spectral and spectropolarimetric observations of the Type IIn supernova (SN) 1997eg that indicate the presence of a flattened disk-like concentration of circumstellar material surrounding nonspherical ejecta, with which the disk is misaligned. The polarization across the broad H alpha, H beta, and He I 5876 lines of SN 1997eg forms closed loops when viewed in the Stokes q-u plane. Such loops occur when the geometrical symmetry of one or both of the Stokes parameters across spectral lines is broken, in this case most likely by occultation of the ejecta by the equatorial circumstellar matter concentration. The polarization of the narrow Balmer lines possesses an intrinsic axis that differs by 12 degrees from that of the elongated ejecta and probably indicates the orientation of the disk-like circumstellar material. The existence of two different axes of symmetry in SN 1997eg suggests that neither rotation of the progenitor nor the influence of a companion star can be the sole mechanism creating a preferred axis within the supernova system. Our model supports the emerging hypothesis that the progenitors of some Type IIn supernovae are luminous blue variable stars, whose pre-supernova mass eruptions form the circumstellar shells that physically characterize the SN IIn subclass. These conclusions, which are independent of interstellar polarization effects, would have been unobservable with only a single epoch of spectropolarimetry.
description: 52 pages, 13 figures; accepted by ApJ. Several sections revised in response to referee comments. High-resolution figures are available at http://grammai.org/jhoffman/1997eg/
An Audio-Visual approach to the Spanish transition
Creators: name: Prieto, Moisés
name: Calvo Salgado, Luís Manuel
name: Langa, Concha
Publisher: name: Humboldt-Universität zu Berlin
Year: 2018
Subjects: subject: Spain
subject: twentieth century
subject: television news
subject: immigration
subject: Switzerland
subject: democratization
subject: 070 Publizistische Medien, Journalismus, Verlagswesen
subject: 304 Das Sozialverhalten beeinflussende Faktoren

description: Tele-revista was a biweekly Swiss television broadcast for Spanish immigrants living in Switzerland. It dealt with labour and migration-related issues in Switzerland, information about Spanish cultural manifestations, political rights and interviews with committed immigrants and key figures of Spanish politics in transit on Swiss soil. First aired in 1973, in the final years of General Franco’s authoritarian regime, the TV magazine, initially broadcast on the three Swiss TV channels, is an unique source of the Spanish transition to democracy, seen through the eyes of Swiss TV-makers with the collaboration of some Spanish journalists. Tele-revista was aimed for a better integration of Spaniards within Swiss society, who were considered worse integrated than the Italians. The paper pursues to present a general portrayal of the broadcast with a special attention to the years of the Spanish transition to democracy by means of focussing on the information about social, cultural and political issues.
Evidence for profile changes in PSR J1713+0747 using the uGMRT
Creators: name: Singha, Jaikhomba
name: Surnis, Mayuresh P
name: Joshi, Bhal Chandra
name: Tarafdar, Pratik
name: Rana, Prerna
name: Susobhanan, Abhimanyu
name: Girgaonkar, Raghav
name: Kolhe, Neel
name: Agarwal, Nikita
name: Desai, Shantanu
name: Prabu, T
name: Bathula, Adarsh
name: Dandapat, Subhajit
name: Dey, Lankeswar
name: Hisano, Shinnosuke
name: Kato, Ryo
name: Kharbanda, Divyansh
name: Kikunaga, Tomonosuke
name: Marmat, Piyush
name: Susarla, Sai Chaitanya
name: Bagchi, Manjari
name: Batra, Neelam Dhanda
name: Choudhury, Arpita
name: Gopakumar, A
name: Gupta, Yashwant
name: Krishnakumar, M A
name: Maan, Yogesh
name: Manoharan, P K
name: Nobleson, K
name: Pandian, Arul
name: Pathak, Dhruv
name: Takahashi, Keitaro
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: PSR J1713+0747 is one of the most precisely timed pulsars in the international pulsar timing array experiment. This pulsar showed an abrupt profile shape change between April 16, 2021 (MJD 59320) and April 17, 2021 (MJD 59321). In this paper, we report the results from multi-frequency observations of this pulsar carried out with the upgraded Giant Metrewave Radio Telescope (uGMRT) before and after the event. We demonstrate the profile change seen in Band 5 (1260 MHz - 1460 MHz) and Band 3 (300 MHz - 500 MHz). The timing analysis of this pulsar shows a disturbance accompanying this profile change followed by a recovery with a timescale of $\sim 159$ days. Our data suggest that a model with chromatic index as a free parameter is preferred over models with combinations of achromaticity with DM bump or scattering bump. We determine the frequency dependence to be $\simν^{+1.34}$.
description: Accepted for publication in MNRAS-Letters
Origin of the X-ray Quasi-Periodic Oscillations and Identification of a Transient Ultraluminous X-Ray Source in M82
Creators: name: Feng, Hua
name: Kaaret, Philip
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The starburst galaxy M82 contains two ultraluminous X-ray sources (ULXs), CXOM82 J095550.2+694047 (=X41.4+60) and CXOM82 J095551.1+694045 (=X42.3+59), which are unresolved by XMM-Newton. We revisited the two XMM-Newton observations of M82 and analyzed the surface brightness profiles using the known Chandra source positions. We show that the quasi-periodic oscillations (QPOs) detected with XMM-Newton originate from X41.4+60, the brightest X-ray source in M82. Correcting for the contributions of the unresolved sources, the QPO at a frequency of 55.8+/-1.3 mHz on 2001 May 06 had a fractional rms amplitude of 32%, and the QPO at 112.9+/-1.3 mHz on 2004 April 21 had an amplitude of 21%. The QPO frequency may possibly be correlated with the source flux, similar to the type C QPOs in XTE 1550-564 and GRS 1915+105, but at luminosities two orders of magnitude higher. X42.3+59, the second brightest source in M82, displayed a strikingly high flux of 1.4E-11 ergs/cm^2/s in the 2-10 keV band on 2001 May 6. A seven-year light curve of X42.3+59 shows extreme variability over a factor of 1000; the source is not detected in several Chandra observations. This transient behavior suggests accretion from an unstable disk. If the companion star is massive, as might be expected in the young stellar environment, then the compact object would likely be an IMBH.
description: 9 pages, 6 figures, submitted to ApJ on May 08, 2007
Witold Mędykowski: Macht Arbeit frei? German Economic Policy and Forced Labor of Jews in the General Government, 1939–1943
Creators: name: Grelka, Frank
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 3 (2020)
Breakdown of the operator product expansion in the 't Hooft model
Creators: name: Mondejar, Jorge
name: Pineda, Antonio
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider deep inelastic scattering in the 't Hooft model. Being solvable, this model allows us to directly compute the moments associated with the cross section at next-to-leading order in the 1/Q^2 expansion. We perform the same computation using the operator product expansion. We find that all the terms match in both computations except for one in the hadronic side, which is proportional to a non-local operator. The basics of the result suggest that a similar phenomenon may occur in four dimensions in the large N_c limit.
description: 4 pages
Insects and rapeseed plants
Creators: name: Barnabe, Susan K.
Publisher: name: University of British Columbia
Year: 2010

description: Rapeseed is grown from two closely related species of Brassica in many varieties. The behaviour of seven insects was studied to determine their responses to low erucic acid rapeseed, represented by a typical and a Canola variety of each species. The Canola varieties have a lower gluco-sinolate concentration in the seed coat than typical varieties. The insects were chosen because they were oligophagous or polyphagous. The actions of adults of two species of moths, Mamestra configurata Walker and Plutella maculipennis (Curtis), were studied by using an olfactometer; four species of aphids, Myzus persicae Sulzer, Macrosiphum euphorbiae (Ashmead), Brevicoryne brassicae (Linnaeus), and Acrythosiphon pisum (Harris), were studied when the adults were placed at the base of each type of plant. The insects responded in accordance with their normal associations with cruciferous plants as hosts. Their responses were not materially affected by genetic differences among the four varieties, even though these included distinct morphological and biochemical differences. Behavioural differences towards plant species were observed in the polyphagous aphids, which affected their distribution on the plants. These differences were not associated with varieties or glucosinolate contents. These results indicated that the differences between the two rapeseed species and typical and Canola varieties would neither materially affect the responses of attacking insects nor the resistance of the plants to insect attack in the field.
Iterated star-triangle transformation on inhomogeneous 2D Ising lattices
Creators: name: Hilhorst, H. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider infinite or periodic 2D triangular Ising lattices with arbitrary positive or negative nearest-neighbor couplings $K_i(\vec{r})$, where $\vec{r}$ and $i$ indicate the bond position and orientation, respectively. Iterative application of the star-triangle transformation to an initial lattice $\mathcal{T}(0)$ with a set of couplings $\{K_i^{(0)}(\vec{r})\}$ generates a sequence of lattices $\mathcal{T}(n)$, for $n=1,2,\ldots,$ with couplings $\{K_i^{(n)}(\vec{r})\}$. When $\mathcal{T}(0)$ includes sufficiently strongly frustrated plaquettes, complex couplings will appear. We show that, nevertheless, the variables $1/\sinh 2K_i^{(n)}\!(\vec{r})$ remain confined to the union ${\mathbb{R}} \cup \rm{i}{\mathbb{R}}$ of the real and the imaginary axis. The same holds for a lattice with free boundaries, provided we distinguish between "receding" and "advancing" boundaries, the latter having degrees of freedom that must be fixed by an appropriately chosen protocol. This study establishes a framework for future analytic and numerical work on such frustrated Ising lattices.
description: 32 pages, 13 figures, 2 tables
Pauli spin-blockade in an InAs nanowire double quantum dot
Creators: name: Pfund, A.
name: Shorubalko, I.
name: Leturcq, R.
name: Ensslin, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We measure transport at finite bias through a double quantum dot formed by top-gates in an InAs nanowire. Pauli spin-bockade is confirmed with several electrons in the dot. This is expected due to the small exchange interactions in InAs and the large singlet-triplet splitting, which can be measured and tuned by a gate voltage.
description: EP2DS-17 Proceedings, 3 Pages, 3 Figures
Reverse engineering time discrete finite dynamical systems: A feasible undertaking?
Creators: name: Delgado-Eckert, Edgar
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Dynamical Systems (math.DS)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences
subject: FOS: Mathematics

description: With the advent of high-throughput profiling methods, interest in reverse engineering the structure and dynamics of biochemical networks is high. Recently an algorithm for reverse engineering of biochemical networks was developed by Laubenbacher and Stigler. It is a top-down approach using time discrete dynamical systems. One of its key steps includes the choice of a term order. The aim of this paper is to identify minimal requirements on data sets to be used with this algorithm and to characterize optimal data sets. We found minimal requirements on a data set based on how many terms the functions to be reverse engineered display. Furthermore, we identified optimal data sets, which we characterized using a geometric property called "general position". Moreover, we developed a constructive method to generate optimal data sets, provided a codimensional condition is fulfilled. In addition, we present a generalization of their algorithm that does not depend on the choice of a term order. For this method we derived a formula for the probability of finding the correct model, provided the data set used is optimal. We analyzed the asymptotic behavior of the probability formula for a growing number of variables n (i.e. interacting chemicals). Unfortunately, this formula converges to zero as fast as r^(q^n), where q is a natural number and 0
description: Submitted to journal, currently under review
Upgrading gSeaGen: from MeV to PeV neutrinos
Creators: name: Soto, A. Garcia
name: Distefano, C.
name: Kalaczyński, P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The gSeaGen framework has been upgraded to simulate events detectable in neutrino telescopes induced by neutrino or cosmic ray interactions. The new version is well-suited to generate neutrino interactions at energies from a few MeV to EeV, profiting from the latest GENIE extensions to lower and higher energies. In addition, a brand new functionality to propagate leptons from CORSIKA air showers has been developed. Novel features of gSeaGen will be presented, related to simulation of PeV tau neutrinos and charged lepton propagation, using the KM3NeT detectors as physics case.
description: 5 pages and 4 figures. Presented at the 9th Very Large Volume Neutrino Telescope Workshop (VLVnT 2021), Version after first revision JINST
Acantheis dimidiatus Thorell 1890
Creators: name: Fomichev, Alexander A.
name: Omelko, Mikhail M.
name: Marusik, Yuri M.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Ctenidae
Acantheis
Acantheis dimidiatus

description: Acantheis dimidiatus (Thorell, 1890)
Figs 36–48
Acanthoctenus dimidiatus Thorell, 1890: 134 (♁).
Acantheis dimidiatus — Simon 1897: 117.
Material examined. 1♁ (holotype) (MSNG), INDONESIA: Sumatra Island: Singalong, O. Beccari. Examined by photo.
Diagnosis. The species is similar to A. laetus from Kalimantan and to A. sergeimishenini sp. n. and A. andreimishenini sp. n. from Sumatra in having the slender embolus (Em), the medially located tegular apophysis (TA) and the elongated cymbial tip. The male of A. dimidiatus differs from that of A. laetus by by the strongly curved embolus (vs. smoothly rounded, cf. Fig 43 and Lehtinen 1967: fig. 410).The male of A. dimidiatus can be distinguished from that of A. sergeimishenini sp. n. by the non-bifurcated retrolateral tibial apophsis (RTA) (vs. bifurcated, cf. Figs 41 and 15), the triangular tegular apophysis (vs. comma-shaped, cf. Figs 43 and 23), and the ventral embolic branch twice thinner than dorsal one (vs. ventral embolic branch twice wider than dorsal one, cf. Figs 41 and 30). From the males of A. andreimishenini sp. n. those of A. dimidiatus differs by the dorsal surface of opisthosoma with a thin stripe reaching spinnerets (vs. wide cardiac mark reaching middle part of opisthosoma, cf. Figs 36 and 3), the median band on the carapace as wide as distance between PME (vs. as wide as the distance between PLE), the triangular tegular apophysis (TA) (vs. circular, cf. Figs 43 and 27), and the ventral embolic branch twice thinner than dorsal one (vs. dorsal and ventral embolic branches equal in size, cf. Figs 41 and 31). For a complete list of the differences between the males of A. dimidiatus, A. sergeimishenini sp. n. and A. andreimeshenini sp. n. see Table 7.
Description. Male palp as shown in Figs 37–43. Tibia ca. 4.6 longer than wide, 4 very long spines, longest ca. 0.7 of tibia length. Retrolateral tibial apophysis small, non-bifurcated. Cymbial tip about 0.42 of its length, slightly shorter than bulb. Sperm duct clearly visible only in retrolateral view. Tegular apophysis triangular. Embolus strongly curved. Ventral branch of embolus twice thinner than dorsal one.
Female. Unknown.
Distribution. Only known from the type locality (Figs 46–48).
description: Published as part of Fomichev, Alexander A., Omelko, Mikhail M. & Marusik, Yuri M., 2023, A survey of the Sumatran Ctenidae (Araneae). 1. Two new Acantheis species, pp. 117-130 in Zootaxa 5353 (2) on page 128, DOI: 10.11646/zootaxa.5353.2.2, http://zenodo.org/record/8427062
The Politics of Disability in Interwar and Socialist Czechoslovakia. Segregating in the Name of the Nation. Hrsg. von Victoria Shmidt
Creators: name: Stegmann, Natali
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 3 (2020)
GenSys: A Scalable Fixed-point Engine for Maximal Controller Synthesis over Infinite State Spaces
Creators: name: Samuel, Stanly
name: D'Souza, Deepak
name: Komondoor, Raghavan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The synthesis of maximally-permissive controllers in infinite-state systems has many practical applications. Such controllers directly correspond to maximal winning strategies in logically specified infinite-state two-player games. In this paper, we introduce a tool called GenSys which is a fixed-point engine for computing maximal winning strategies for players in infinite-state safety games. A key feature of GenSys is that it leverages the capabilities of existing off-the-shelf solvers to implement its fixed point engine. GenSys outperforms state-of-the-art tools in this space by a significant margin. Our tool has solved some of the challenging problems in this space, is scalable, and also synthesizes compact controllers. These controllers are comparatively small in size and easier to comprehend. GenSys is freely available for use and is available under an open-source license.
MODERN TURKISH AND UZBEKI STORIES: TYPOLOGY AND COMPARATIVE STUDY
Creators: name: Zaripova, Shukurjon
Publisher: name: Zenodo
Year: 2023

description: In a time when literary, political, cultural and economic relations between the world community and different peoples are developing, the comparative study of their literary trends, currents, and the lives of creators is of great importance. Also, the study of typology in Turkish and Uzbek stories is of great importance today.
GeV Emission from Prompt and Afterglow Phases of Gamma-Ray Bursts
Creators: name: Ando, Shin'ichiro
name: Nakar, Ehud
name: Sari, Re'em
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the GeV emission from gamma-ray bursts (GRBs), using the results from the Energetic Gamma Ray Experimental Telescope (EGRET), and in view of the Gamma-ray Large Area Space Telescope (GLAST). Assuming that the conventional prompt and afterglow photons originate from synchrotron radiation, we compare an accompanying inverse-Compton component with EGRET measurements and upper limits on GeV fluence, taking Klein-Nishina feedback into account. We find that EGRET constraints are consistent with the theoretical framework of the synchrotron self-Compton model for both prompt and afterglow phases, and discuss constraints on microphysical parameters in both phases. Based on the inverse-Compton model and using EGRET results, we predict that GLAST would detect GRBs with GeV photons at a rate >~20 yr^{-1} from each of the prompt and afterglow phases. This rate applies to the high-energy tail of the prompt synchrotron emission and to the inverse-Compton component of the afterglow. Theory predicts that in a large fraction of the cases where synchrotron GeV prompt emission would be detected by GLAST, inverse-Compton photons should be detected as well at high energies >~10 GeV. Therefore GLAST will enable a more precise test of the high-energy emission mechanism. Finally, we show that the contribution of GRBs to the flux of the extragalactic gamma-ray background measured with EGRET is at least 0.01% and likely around 0.1%.
description: 11 pages, 7 figures; accepted by ApJ
Higgs boson decay to the pair of S- and P-wave $B_c$ mesons
Creators: name: Faustov, R. N.
name: Martynenko, F. A.
name: Martynenko, A. P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the rare production of the pair of $S-$ and $P-$ wave $B_c$-meson in the Higgs boson decay in the perturbative Standard Model and relativistic quark model. Relativistic amplitudes and decay widths are constructed with the account of the relative motion of heavy quarks forming $B_c$ mesons. When constructing the Higgs boson decay amplitudes, the method of projection operators on the $S-$ and $P-$wave states of quarks is used. Relativistic corrections are expressed in terms of special relativistic parameters and are calculated numerically in the quark model. The dependence of the decay widths of the Higgs boson on various sources of relativistic corrections is investigated.
description: 18 pages, 5 figures. arXiv admin note: substantial text overlap with arXiv:2105.02207
Agnes Laba: Die Grenze im Blick. Der Ostgrenzen-Diskurs der Weimarer Republik
Creators: name: Bichlmaier, Johanna
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 3 (2020)
Davide Susanetti. Euripide. Fra tragedia, mito e filosofia. Roma. Carocci Editore. Frecce/51. 2007. pp.323. € 25,50. ISBN  978-88-430-4267-8
Creators: name: Fiorentini, Leonardo
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: Annali Online  Lettere - Ferrara, II 2 (2007)
Correlations and clustering in the trading of members of the London Stock Exchange
Creators: name: Zovko, Ilija I.
name: Farmer, J. Doyne
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: This paper analyzes correlations in patterns of trading of different members of the London Stock Exchange. The collection of strategies associated with a member institution is defined by the sequence of signs of net volume traded by that institution in hour intervals. Using several methods we show that there are significant and persistent correlations between institutions. In addition, the correlations are structured into correlated and anti-correlated groups. Clustering techniques using the correlations as a distance metric reveal a meaningful clustering structure with two groups of institutions trading in opposite directions.
Elisabeth Haid: Im Blickfeld zweier Imperien. Galizien in der österreichischen und russischen Presseberichterstattung während des Ersten Weltkriegs (1914–1917)
Creators: name: Puttkamer, Joachim Von
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 3 (2020)
Transverse Momentum Dependent Gluon Distribution within High Energy Factorization at Next-to-Leading Order
Creators: name: Hentschinski, Martin
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss Transverse Momentum Dependent (TMD) gluon distributions within high energy factorization at next-to-leading order in the strong coupling within the framework of Lipatov's high energy effective action. We provide a detailed discussion of both rapidity divergences related to the TMD definition and its soft factor on the one hand, and rapidity divergences due to high energy factorization on the other hand, and discuss common features and differences between Collins-Soper (CS) and Balitsky-Fadin-Kuarev-Lipatov (BFKL) evolution. While we confirm earlier results which state that the unpolarized and linearly polarized gluon TMD agree in the BFKL limit at leading order, we find that both distributions differ, once next-to-leading order corrections are being included. Unlike previous results, our framework allows to recover the complete anomalous dimension associated with Collins-Soper-Sterman (CSS) evolution of the TMD distribution, including also single-logarithmic terms in the CSS evolution. As an additional result we provide a definition of $k_T$-factorization, i.e. matching of off-shell coefficients to collinear factorization at next-to-leading order within high energy factorization and the effective action framework. We furthermore establish a link between the QCD operator definition of the TMD gluon distribution and a previously derived off-shell TMD gluon-to-gluon splitting function, which is within the present framework obtained as the real 1-loop correction.
description: 36 pages, 28 figures, updated references and comment added. Version accepted for publication in Physical Review D
"Ungeheures, sonderbar zugerichtetes geistiges Erbe". Modernità e storicismo nel film sull’esempio di Der junge Medardus
Creators: name: Concetti, Riccardo
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: Arthur Schnitzler’s historical play Der junge Medardus was  first staged in 1910. Thirteen years later, it was made into a film by  the Hugarian director Mihály Kertész, more commonly known as Michael  Curtiz. The present paper questions how history is represented in these  works. While using Lukács’s theory of true and false historical fiction  as a conceptual framework, the analysis shows that the two versions of Medardus elicit historical awareness by drawing the audience’s attention to the  specific qualities of theatre and film rather than to the psychological,  economical or ideological causes of historical facts. Using  Hofmannsthal’s film theory and Benjamin’s philosophy of history, the  implication is made that modern media move away from representing  history as a long Hegelian process while concentrating the past in a  meaningful metaphor or in a image that have an urgent reference to the  present.
description: Annali Online  Lettere - Ferrara, V 1 (2010)
"Un'appropriazione di Hitchcock su larga scala": lo sfortunato caso di Dietro la porta chiusa
Creators: name: Pavesi, Diletta
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: Secret Beyond the Door (1948) has often been underestimated by  the major film critics who wrote on Fritz Lang's American productions.  The reason may be found in the weak success the film got at the box  office and on the papers' reviews. In recent times, the film has been  re-discovered as a fascinating intertextual experiment by which Lang  appropriates and reshapes several thematic and formal elements Alfred  Hitchcock had used in his films from the Forties. This hypothesis was  accepted by Lang himself, who admits in a famous interview with Peter  Bogdanovich to have drawn inspiration, in making Secret Beyond the Door, from Hitchcock's smashing American success Rebecca (1940). This essay focuses on the production of the film, on its  narrative and technical elements, and analyses the complex  intertextuality that ties the creative worlds of Lang and Hitchcock.
description: Annali Online  Lettere - Ferrara, V 1 (2010)
Federico Condello (a cura di) Sofocle. Edipo re. Siena. Barbera. 2009. pp. CLXXII + 224.
Creators: name: Fiorentini, Leonardo
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: Annali Online  Lettere - Ferrara, V 1 (2010)
Tau and muon pair production cross-sections in electron-positron annihilations at sqrt{s} = 10.58 GeV
Creators: name: Banerjee, Swagato
name: Pietrzyk, Bolek
name: Roney, J. Michael
name: Was, Zbigniew
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The calculational precision of $\ee\to\tautau$ and $\ee\to\mumu$ production cross-sections in electron-positron annihilations at \roots = 10.58 \gev are studied for the \kk Monte Carlo simulation program. We determine $σ(\ee\to\tautau) = (0.919 \pm 0.003) \nb$ and $σ(\ee\to\mumu) = (1.147 \pm 0.005) \nb$, where the error represents the precision of the calculation.
description: 7 pages, 3 tables, 1 figure (published in Physical Review D 77, 054012 (2008))
Applied Language Technology: NLP for the Humanities
Creators: name: Hiippala, Tuomo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: This contribution describes a two-course module that seeks to provide humanities majors with a basic understanding of language technology and its applications using Python. The learning materials consist of interactive Jupyter Notebooks and accompanying YouTube videos, which are openly available with a Creative Commons licence.
description: Accepted to the 5th Workshop on Teaching NLP at NAACL-HLT 2021
Phase transition facilitated highly sensitive luminescence nanothermometry and thermal imaging
Creators: name: Marciniak, Lukasz
name: Piotrowski, Wojciech
name: Szalkowski, Marcin
name: Kinzhybalo, Vasyl
name: Drozd, Marek
name: Dramicanin, Miroslav
name: Bednarkiewicz, Artur
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Currently available temperature measurements or imaging at nano-micro scale are limited to fluorescent molecules and luminescent nanocrystals, whose spectral properties respond to temperature variation. The principle of operation of these conventional temperature probes is typically related to temperature induced multiphonon quenching or temperature dependent energy transfers, therefore, above 12%/K sensitivity and high thermal resolution remain a serious challenge. Here we demonstrate a novel class of highly sensitive thermographic phosphors operating in room temperature range with milikelvin thermal resolution, whose temperature readings are reproducible, luminescence is photostable and brightness is not compromised by thermal quenching. Corroborated with phase transition structural characterization and high spatio-temporal temperature imaging, we demonstrated that optically active europium ions are highly and smoothly susceptible to monoclinic to tetragonal phase transition in LiYO2 host, which is evidenced by changed number and the splitting of Stark components as well as by smooth variation of contribution between magnetic and electric dipole transitions. Further, reducing the size of phosphor from bulk to nanocrystalline matrix, shifted the phase transition temperature from 100oC down to room temperature. These findings provide insights into the mechanism underlaying phase transition based luminescence nanothermometry and motivate future research toward new, highly sensitive, high temporal and spatial resolution nano-thermometers aiming at precise studying heat generation or diffusion in numerous biological and technology applications.
A software for learning Information Theory basics with emphasis on Entropy of Spanish
Creators: name: Guerrero, Fabio G.
name: Perez, Lucio A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, a tutorial software to learn Information Theory basics in a practical way is reported. The software, called IT-tutor-UV, makes use of a modern existing Spanish corpus for the modeling of the source. Both the source and the channel coding are also included in this educational tool as part of the learning experience. Entropy values of the Spanish language obtained with the IT-tutor-UV are discussed and compared to others that were previously calculated under limited conditions.