cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
K2CO3/Al2O3: An efficient and recyclable catalyst under solvent free conditions for the reaction of electron-deficient nitro-olefins with 1,3-dicarbonyl compounds
Creators: name: Shumaila, Abdullah M.A.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: K2CO3/Al2O3 (KCA) is an efficient heterogeneous catalyst for the Michael addition reaction of 1,3-dicarbonyl compounds to nitro olefin under thermal solvent-free conditions. The results showed that the catalyst has high activity and the desired products were obtained in high yields. Furthermore, the products could be separated simply from the catalyst, and the catalyst could be recycled and reused with only slight reduction in its catalytic activity.
GRB 060605: multi-wavelength analysis of the first GRB observed using integral field spectroscopy
Creators: name: Ferrero, Patrizia
name: Klose, Sylvio
name: Kann, David Alexander
name: Savaglio, Sandra
name: Schulze, Steve
name: Palazzi, Eliana
name: Maiorano, Elisabetta
name: Böhm, Petra
name: Grupe, Dirk
name: Oates, Samantha R.
name: Sánchez, Sebastián F.
name: Amati, Lorenzo
name: Greiner, Jochen
name: Hjorth, Jens
name: Malesani, Daniele
name: Barthelmy, Scott D.
name: Gorosabel, Javier
name: Masetti, Nicola
name: Roth, Martin M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The long and relatively faint gamma-ray burst GRB 060605 detected by \emph{Swift}/BAT lasted about 20 sec. Its afterglow could be observed with \emph{Swift}/XRT for nearly 1 day, while \emph{Swift}/UVOT could detect the afterglow during the first 6 hours after the event. Here, we report on integral field spectroscopy of its afterglow performed with PMAS/PPak mounted at the Calar Alto 3.5 m telescope. In addition, we report on a detailed analysis of XRT and UVOT data and on the results of deep late-time VLT observations that reveal the GRB host galaxy. We find that the burst occurred at a redshift of $z$=3.773, possibly associated with a faint, $R_C=26.4 \pm 0.3$ host. Based on the optical and X-ray data, we deduce information on the SED of the afterglow, the position of the cooling frequency in the SED, the nature of the circumburst environment, its collimation factor, and its energetics. We find that the GRB fireball was expanding into a constant-density medium and that the explosion was collimated with a narrow half-opening angle of about 2.4 degrees. The initial Lorentz factor of the fireball was about 250; however, its beaming-corrected energy release in the gamma-ray band was comparably low. The optical, X-ray afterglow, on the other hand, was rather luminous. Finally, we find that the data are consistent within the error bars with an achromatic evolution of the afterglow during the suspected jet break time at about 0.27 days after the burst.
description: accepted in A&A; changed title, major reviews after referee's report; 15 pages and 14 figures
Testing the Copernican Principle via Cosmological Observations
Creators: name: Bolejko, Krzysztof
name: Wyithe, J. Stuart B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Observations of distances to Type-Ia supernovae can be explained by cosmological models that include either a gigaparsec-scale void, or a cosmic flow, without the need for Dark Energy. Instead of invoking dark energy, these inhomogeneous models instead violate the Copernican Principle. we show that current cosmological observations (Supernovae, Baryon Acoustic Oscillations and estimates of the Hubble parameters based on the age of the oldest stars) are not able to rule out inhomogeneous anti-Copernican models. The next generation of surveys for baryonic acoustic oscillations will be sufficiently precise to either validate the Copernican Principle or determine the existence of a local Gpc scale inhomogeneity.
description: 16 pages, 9 figures; accepted for publication in JCAP
title: Приёмы аргументации и способы воздействия на судей в первой речи Антифонта
title: Rhetorical Devices and Methods of Evoking an Emotional Response from the Judges in Antiphon’s First Speech
Creators: name: Золотарева, В. А.
Publisher: name: Мнемон 22 (2022)
Year: 2022

description: В древнегреческой судебной риторике важную роль играла способность оратора произвести на слушателей нужное впечатление и вызвать у них эмоциональный отклик. В некоторых случаях риторические приёмы действуют в судебных речах наравне с фактическими доказательствами. В этой статье рассматривается первая речь Антифонта, «Обвинение мачехи в отравлении». Автор анализирует приёмы, используемые Антифонтом, с точки зрения их эмоционального воздействия на судей, и приходит к выводу, что, несмотря на слабость фактического обоснования, позиция обвинения в этой речи может произвести впечатление убедительной. Недостаток прямых доказательств компенсируется силой эмоционального воздействия, которым обладают риторические приёмы Антифонта.
description: In judicial rhetoric of Ancient Greece an important role was played by the speaker's ability to impress the audience and evoke an emotional response from them. In some cases, rhetorical devices act in court speeches on a par with factual evidence. This article deals with Antiphon's first speech, "The Accusation of the Stepmother for Poisoning." The author analyzes the methods used by Antiphon in terms of their emotional impact on the judges, and concludes that despite the weakness of the factual justification, the position of the prosecution in this speech can give an impression of being convincing. The lack of direct evidence is compensated by the power of emotional impact that Antiphon's rhetorical devices possess.
Unitary constraints on Deeply Virtual Compton Scattering
Creators: name: Laget, J. -M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: At moderately low momentum transfer (-t up to 1 GeV^2) the coupling to the vector meson production channels gives the dominant contribution to real Compton and deeply virtual Compton scattering (DVCS). Starting from a Regge Pole approach that successfully describes vector meson production, the singular part of the corresponding box diagrams (where the intermediate vector meson-baryon pair propagates on-shell) is evaluated without any further assumptions (unitarity). Such a treatment explains not only the unexpectedly large DVCS unpolarized cross section that has been recently measured at Jefferson Laboratory (JLab), but also all the beam spin and charge asymmetries that has been measured at JLab and Hermes, without explicit need of Generalized Parton Distributions (GPD). The issue of the relationship between the two approaches is addressed.
description: 5 pages, 6 figures
Response Analysis of Hypo-Fractionated Radiotherapy in the Treatment of Locally Advanced Inoperable Head and Neck Cancer
Creators: name: Tariq Hasan, Major
name: Shams, Mohammad Jahan
name: Rahman, MD Mizanur
name: Alam, Kaoser
name: Rahman, MD Mahfuzar
name: Zakir Hasan, MD.
name: Kundu, Suman
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 321102
subject: Cancer diagnosis
classificationCode: 321104
subject: Cancer therapy (excl. chemotherapy and radiation therapy)
classificationCode: 321110
subject: Radiation therapy
classificationCode: 321199
subject: Oncology and carcinogenesis not elsewhere classified
classificationCode: 321111
subject: Solid tumours

description: Introduction: Locally advanced head and neck carcinomas constitute a substantial proportion of cancer patients in Bangladesh. The common practice is to treat the condition by conventional fractionation (2 gray/fraction, total dose 66 gray). Hypo-fractionated radiotherapy (2.75 gray/fraction, total 55 gray) might be able to produce a similar response in a shorter time. Aim of the study: The aim of the study was to determine tumor response and toxicities in hypo-fractionated radiotherapy. Methods: This Quasi-Experimental study was conducted at the Department of Oncology, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh, and the Department of Radiation Oncology, National Institute of Cancer Research & Hospital, Dhaka, Bangladesh.The study duration was 1.5 years, from July 2018 to December 2019. During this period, a total of 74 patients with inoperable locally advanced squamous cell carcinoma of the head and neck, and equally distributed in two groups, Arm-A and Arm-B. Arm-A received conventionally fractionated chemo-radiotherapy and Arm-B received hypo-fractionated radiotherapy Result: The mean age of Arm-A and B patients were 53.27 (±11.23) & 51.03 (±9.48) years, respectively. Among 74 patients, 46 patients were smokers. 33.68 % of patients were in stage III and 66.22% of patients were in stage IV. In Arm-A 10 patients (27.03%) showed a complete response and in Arm-B, a complete response was observed in 7 patients (18.93%). Partial response was 19 (51.35%) and 18 (48.64%) in Arm-A and B, respectively. There were 4 (10.81%) progressive disease cases in Arm-A and 5 (13.51%) in Arm-B. Significant differences in frequencies of acute grade 2 skin toxicity, mucositis, were found, with higher frequencies. Grade 2 oral mucositis was seen in 26 (70.27%) and 14 (37.83%) patients of Arm-A and B, respectively which was statistically significant. Other toxicities had no significant differences between Arm-A and B. in Arm-B. Conclusion: Hypo-fractionated radiotherapy can achieve a similar tumor response to conventionally fractionated radiotherapy in HNSCC, although with some increase of manageable toxicity.
Potential anti-cancer performance of chitosan-based β-ketosulfone derivatives
Creators: name: Alamry, Khalid A.
name: Hussein, Mahmoud A.
name: Al-Ghamdi, Youssef O.
name: Saleh, Tamer S.
name: Asiri, Abdullah M.
name: Alawi M. Alhebshi
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: 60506 Virology
subject: FOS: Biological sciences

description: A series of chitosan-based β-ketosulfone derivatives (CsB-β-KS) were synthesized, characterized, and evaluated as anti-cancer agents against three types of cancer cell lines, including the colon carcinoma (HCT), liver hepatocellular carcinoma (HEPG2), and breast carcinoma (MCF-7) cell lines. Before product formation, the β-ketosulfone derivatives, 1-(4-halophenyl)-2-(phenylsulfonyl)ethanone, were synthesized by the reaction of phenacyl halide with sodium benzene sulfinate. The (CsB-β-KS)a-e derivatives were synthesized by chemical modification of chitosan (Cs) with freshly prepared p-halo-β-ketosulfone derivatives in a mildly acidic aqueous solution. Various loading percentages, 5%, 10%, 15%, and 20%, of the p-halo-β-ketosulfone derivative (by weight) with respect to the Cs weight were evaluated. The chemical structures were confirmed by variable elemental and spectral analyses, including FT-IR, 1H-NMR, 13C-NMR, and mass spectroscopes. The (CsB-β-KS)a-e derivatives were also characterized by various techniques, such as FT-IR, 1H-NMR, XRD, FE-SEM, and thermal analyses. FT-IR spectroscopy and XRD confirmed the formation of these products. Moreover, the XRD results proved the strong interactions between the organic substituent and the Cs host molecule. All (CsB-β-KS)a-e derivatives showed similar thermal stabilities in three degradation steps. Among these derivatives, (CsB-β-KS)a3 showed the highest thermal stability. The synthesized compounds showed significant biological screening against Gram-positive and Gram-negative bacteria and fungi. Among the tested products, (CsB-β-KS)a3 displayed high efficiencies toward the three types of cancer cell lines under investigation with low concentrations. The ranking of the anti-cancer activity was (CsB-β-KS)a3 > (CsB-β-KS)d3 > (CsB-β-KS)d2.
$α'$-corrections and their double formulation
Creators: name: Lescano, Eric
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The present notes are based on three lectures, each ninety minutes long, prepared for the school 'Integrability, Dualities and Deformations', that ran from 23 to 27 August 2021 in Santiago de Compostela and virtually. These lectures, aimed at graduate students, require only a basic knowledge of string theory. The main goal is to introduce $α'$-corrections to the gravitational sector of different formulations of closed string theory and to reformulate them using novel techniques based on double field theory.
description: 59 pages. V2: Assorted typos fixed
Density dependence of symmetry free energy of hot nuclei
Creators: name: Samaddar, S. K.
name: De, J. N.
name: Vinas, X.
name: Centelles, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The density and excitation energy dependence of symmetry energy and symmetry free energy for finite nuclei are calculated microscopically in a microcanonical framework taking into account thermal and expansion effects. A finite-range momentum and density dependent two-body effective interaction is employed for this purpose. The role of mass, isospin and equation of state (EoS) on these quantities is also investigated; our calculated results are in consonance with the available experimental data.
description: 20 pages, 8 figures, revtex4; modifications in text and figures
Potential Anti-Cancer Performance of Chitosan-Based β-ketosulfone Derivatives
Creators: name: Alamry, Khalid A.
name: Hussein, Mahmoud A.
name: Al-Ghamdi, Youssef O.
name: Saleh, Tamer S.
name: Asiri, Abdullah M.
name: Alawi M. Alhebshi
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: 60506 Virology
subject: FOS: Biological sciences

description: A series of chitosan-based β-ketosulfone derivatives (CsB-β-KS) were synthesized, characterized, and evaluated as anti-cancer agents against three types of cancer cell lines, including the colon carcinoma (HCT), liver hepatocellular carcinoma (HEPG2), and breast carcinoma (MCF-7) cell lines. Before product formation, the β-ketosulfone derivatives, 1-(4-halophenyl)-2-(phenylsulfonyl)ethanone, were synthesized by the reaction of phenacyl halide with sodium benzene sulfinate. The (CsB-β-KS)a-e derivatives were synthesized by a chemical modification of chitosan (Cs) with freshly prepared p-halo-β-ketosulfone derivatives in a mildly acidic aqueous solution. Various loading percentages, 5, 10, 15, and 20%, of the p-halo-β-ketosulfone derivative (by weight) with respect to the Cs weight were evaluated. The chemical structures were confirmed by variable elemental and spectral analyses, including FT-IR, 1H-NMR, 13C-NMR, and mass spectroscopes. The (CsB-β-KS)a-e derivatives were also characterized by various techniques, such as FT-IR, 1H-NMR, XRD, FE-SEM, and thermal analyses. FT-IR spectroscopy and XRD confirmed the formation of these products. Moreover, the XRD results proved the strong interactions between the organic substituent and the Cs host molecule. All (CsB-β-KS)a-e derivatives showed similar thermal stabilities in three degradation steps. Among these derivatives, (CsB-β-KS)a3 showed the highest thermal stability. The synthesized compounds showed significant biological screening against Gram-positive and Gram-negative bacteria and fungi. Among the tested products, (CsB-β-KS)a3 displayed high efficiencies toward the three types of cancer cell lines under investigation with low concentrations. The ranking of the anti-cancer activity was (CsB-β-KS)a3 > (CsB-β-KS)d3 > (CsB-β-KS)d2. _________________
An optical study of the critical behaviour of CHF₃
Creators: name: Stein, Michael Paul
Publisher: name: University of British Columbia
Year: 2010

description: The coexistence curve for CHF₃, measured in the reduced temperature range 4 x 10⁻⁶ < -t < 3.5 x 10⁻² by focal plane interference methods, has been analyzed in terms of the correction to scaling prediction (ρ[sub ℓ] – ρ[sub v])/ ρ[sub c] = B₀|t|[sup β] (1+ B₁|t|[sup Δ]+ B₂|t|[sup 2Δ]) to yield values of the critical exponent β, the critical temperature T[sub c] and the amplitudes B₀, B₁ and B₂. An image plane interference technique has been employed in the reduced temperature range 1.7 x 10⁻⁵ < t < 2 x 10⁻⁴ to obtain pressure-density isotherms for CHF₃. These isotherms are used to determine a value of the critical exponent γ defined by the compressibility power law expression Κ[sub T] =r₀|t|[sup –γ].
Rapidly rotating spherical Couette flow in a dipolar magnetic field: an experimental study of the mean axisymmetric flow
Creators: name: Nataf, Henri-Claude
name: Alboussiere, Thierry
name: Brito, Daniel
name: Cardin, Philippe
name: Gagnière, Nadège
name: Jault, Dominique
name: Schmitt, Denys
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geophysics (physics.geo-ph)
subject: Astrophysics (astro-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In order to explore the magnetostrophic regime expected for planetary cores, experiments have been conducted in a rotating sphere filled with liquid sodium, with an imposed dipolar magnetic field (the DTS setup). The field is produced by a permanent magnet enclosed in an inner sphere, which can rotate at a separate rate, producing a spherical Couette flow. The flow properties are investigated by measuring electric potentials on the outer sphere, the induced magnetic field in the laboratory frame, and velocity profiles inside the liquid sodium using ultrasonic Doppler velocimetry. The present article focuses on the time-averaged axisymmetric part of the flow. The Doppler profiles show that the angular velocity of the fluid is relatively uniform in most of the fluid shell, but rises near the inner sphere, revealing the presence of a magnetic wind, and gently drops towards the outer sphere. The transition from a magnetostrophic flow near the inner sphere to a geostrophic flow near the outer sphere is controlled by the local Elsasser number. For Rossby numbers up to order 1, the observed velocity profiles all show a similar shape. Numerical simulations in the linear regime are computed, and synthetic velocity profiles are compared with the measured ones. In the geostrophic region, a torque-balance model provides very good predictions. We find that the induced magnetic field varies in a consistent fashion, and displays a peculiar peak in the counter-rotating regime. This happens when the fluid rotation rate is almost equal and opposite to the outer sphere rotation rate. The fluid is then almost at rest in the laboratory frame, and the Proudman-Taylor constraint vanishes, enabling a strong meridional flow. We suggest that dynamo action might be favored in such a situation.
description: in press in Physics of the Earth and Planetary Interiors
title: Массовые пополнения гражданских коллективов в греческих полисах от Фессалии до Пелопоннеса во второй половине III в. до н.э. (II)
title: The mass replenishment of citizen bodies in Greek poleis from Thessaly to Peloponnese in the second half of the third century BC. II
Creators: name: Кузьмин, Ю. Н.
name: Сизов, С. К.
Publisher: name: Мнемон 22 (2022)
Year: 2022

description: Во второй части статьи рассмотрены сведения источников о массовом предоставлении гражданства чужестранцам в фессалийских городах Фаланне и Фарсале, ахейской Диме, а также о возможной политографии в Фивах и проекте пополнения гражданского коллектива в Мегалополе. Широкое распространение этого явления во второй половине III в. до н.э. и, вероятно, также в начале следующего столетия, было следствием внутренних процессов, происходивших в самих полисах, а не результатом осуществления навязанной извне демографической или колонизационной программы.
description: In the second part of the article information of the sources about mass granting of citizenship to foreigners in Thessalian cities Phalanna and Pharsalus, the Achaean Dyme, as well as the presumed politographia in Thebes and the project to replenish the citizen community in Megalopolis is analyzed. The widespread occurrence of this practice in the second half of the 3rd century BC and probably also at the beginning of the 2nd century BC, are considered as a consequence of internal processes that took place in the poleis itself, and not as the result of the implementation of a demographic or colonization program imposed from outside.
title: Милосердие царя в Письме Аристея
title: Mercy of the king in the Letter of Aristeas
Creators: name: Дружинина, Е. А.
name: Тахтаджян, С. А.
Publisher: name: Мнемон 22 (2022)
Year: 2022

description: Значительную часть так называемого Письма Аристея занимают вопросы Птолемея II Филадельфа и ответы на них еврейских мудрецов (187–292). В нескольких ответах содержится совет царю проявлять милосердие (188, 207–208). Мы ставим перед собой цель выяснить их источники, а именно определить, принадлежат ли эти ответы еврейской или греческой традиции. В итоге анализа мы приходим к выводу, что основное содержание этих ответов является греческим.
description: The large part of the so-called Letter of Aristeas contains the questions of Ptolemy II Philadelphus and the answers of the Jewish sages (187–292). Several replies advise the king to show mercy (188, 191–192, 207–208). Our aim is to find out their sources: we try to determine whether these answers belong to the Jewish or Greek tradition. Our conclusion is that the essence of these answers is Greek.
Response Analysis of Hypo-Fractionated Radiotherapy in the Treatment of Locally Advanced Inoperable Head and Neck Cancer
Creators: name: Tariq Hasan, Major
name: Shams, Mohammad Jahan
name: Rahman, MD Mizanur
name: Alam, Kaoser
name: Rahman, MD Mahfuzar
name: Zakir Hasan, MD.
name: Kundu, Suman
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 321102
subject: Cancer diagnosis
classificationCode: 321104
subject: Cancer therapy (excl. chemotherapy and radiation therapy)
classificationCode: 321110
subject: Radiation therapy
classificationCode: 321199
subject: Oncology and carcinogenesis not elsewhere classified
classificationCode: 321111
subject: Solid tumours

description: Introduction: Locally advanced head and neck carcinomas constitute a substantial proportion of cancer patients in Bangladesh. The common practice is to treat the condition by conventional fractionation (2 gray/fraction, total dose 66 gray). Hypo-fractionated radiotherapy (2.75 gray/fraction, total 55 gray) might be able to produce a similar response in a shorter time. Aim of the study: The aim of the study was to determine tumor response and toxicities in hypo-fractionated radiotherapy. Methods: This Quasi-Experimental study was conducted at the Department of Oncology, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh, and the Department of Radiation Oncology, National Institute of Cancer Research & Hospital, Dhaka, Bangladesh.The study duration was 1.5 years, from July 2018 to December 2019. During this period, a total of 74 patients with inoperable locally advanced squamous cell carcinoma of the head and neck, and equally distributed in two groups, Arm-A and Arm-B. Arm-A received conventionally fractionated chemo-radiotherapy and Arm-B received hypo-fractionated radiotherapy Result: The mean age of Arm-A and B patients were 53.27 (±11.23) & 51.03 (±9.48) years, respectively. Among 74 patients, 46 patients were smokers. 33.68 % of patients were in stage III and 66.22% of patients were in stage IV. In Arm-A 10 patients (27.03%) showed a complete response and in Arm-B, a complete response was observed in 7 patients (18.93%). Partial response was 19 (51.35%) and 18 (48.64%) in Arm-A and B, respectively. There were 4 (10.81%) progressive disease cases in Arm-A and 5 (13.51%) in Arm-B. Significant differences in frequencies of acute grade 2 skin toxicity, mucositis, were found, with higher frequencies. Grade 2 oral mucositis was seen in 26 (70.27%) and 14 (37.83%) patients of Arm-A and B, respectively which was statistically significant. Other toxicities had no significant differences between Arm-A and B. in Arm-B. Conclusion: Hypo-fractionated radiotherapy can achieve a similar tumor response to conventionally fractionated radiotherapy in HNSCC, although with some increase of manageable toxicity.
Complexity and algorithms for injective edge-coloring in graphs
Creators: name: Foucaud, Florent
name: Hocquard, Hervé
name: Lajou, Dimitri
Publisher: name: arXiv
Year: 2021
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: An injective $k$-edge-coloring of a graph $G$ is an assignment of colors, i.e. integers in $\{1, \ldots , k\}$, to the edges of $G$ such that any two edges each incident with one distinct endpoint of a third edge, receive distinct colors. The problem of determining whether such a $k$-coloring exists is called k-INJECTIVE EDGE-COLORING. We show that 3-INJECTIVE EDGE-COLORING is NP-complete, even for triangle-free cubic graphs, planar subcubic graphs of arbitrarily large girth, and planar bipartite subcubic graphs of girth~6. 4-INJECTIVE EDGE-COLORING remains NP-complete for cubic graphs. For any $k\geq 45$, we show that k-INJECTIVE EDGE-COLORING remains NP-complete even for graphs of maximum degree at most $5\sqrt{3k}$. In contrast with these negative results, we show that \InjPbName{k} is linear-time solvable on graphs of bounded treewidth. Moreover, we show that all planar bipartite subcubic graphs of girth at least~16 are injectively $3$-edge-colorable. In addition, any graph of maximum degree at most $\sqrt{k/2}$ is injectively $k$-edge-colorable.
description: 12 pages, 5 figures
Chorographical Map of New York Province, William Faden, 1779
Creators: name: Sauthier, Claude Joseph
name: Faden, William
Publisher: name: Unknown
Year: 0
Subjects: Maps
New York
Map making
Long Island

description: This is a photographic copy of a chorographical map of New York Province made by Claude Joseph Sauthier and engraved by William Faden in 1779. This image was collected as part of the East Hampton’s Heritage Photo Collection some time in 1970 to 1982, this map is Courtesy of The New York Historical, New York City.
description: Images within East Hampton Heritage Photo Collection seem to have been taken or collected in relation to the East Hampton Heritage project, but not all of them were included in the final publication. Several photographer are included in this collection.
Detection of ultra-weak laser pulses by free-running single-photon detectors: modeling dead time and dark counts effects
Creators: name: Georgieva, Hristina
name: Meda, Alice
name: Raupach, Sebastian M. F.
name: Hofer, Helmuth
name: Gramegna, Marco
name: Degiovanni, Ivo Pietro
name: Genovese, Marco
name: Lopez, Marco
name: Kück, Stefan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In quantum communication systems, the precise estimation of the detector's response to the incoming light is necessary to avoid security breaches. The typical working regime uses a free-running single-photon avalanche diode in combination with attenuated laser pulses at telecom wavelength for encoding information. We demonstrate the validity of an analytical model for this regime which considers the effects of dark counts and dead time on the measured count rate. For the purpose of gaining a better understanding of these effects, the photon detections were separated from the dark counts via a software-induced gating mechanism. The model was verified by experimental data for mean photon numbers covering three orders of magnitude as well as for laser repetition frequencies below and above the inverse dead time. Consequently, our model would be of interest for predicting the detector response not only in the field of quantum communications, but also in any other quantum physics experiment where high detection rates are needed.
Advanced Synchronization Techniques for Task-based Runtime Systems
Creators: name: Álvarez, David
name: Sala, Kevin
name: Maroñas, Marcos
name: Roca, Aleix
name: Beltran, Vicenç
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Task-based programming models like OmpSs-2 and OpenMP provide a flexible data-flow execution model to exploit dynamic, irregular and nested parallelism. Providing an efficient implementation that scales well with small granularity tasks remains a challenge, and bottlenecks can manifest in several runtime components. In this paper, we analyze the limiting factors in the scalability of a task-based runtime system and propose individual solutions for each of the challenges, including a wait-free dependency system and a novel scalable scheduler design based on delegation. We evaluate how the optimizations impact the overall performance of the runtime, both individually and in combination. We also compare the resulting runtime against state of the art OpenMP implementations, showing equivalent or better performance, especially for fine-grained tasks.
description: 14 pages, 11 figures. Published in the 26th ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming (PPoPP'21)
Synchrony in Gene Regulatory Networks
Creators: name: Aguiar, Manuela
name: Dias, Ana
name: Ruan, Haibo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: Primary: 92B20, 92B25, 34C14 Secondary: 34C15, 05C90

description: We consider two mathematical dynamical models of gene regulatory networks (GRNs) and obtain results on robust synchronization on these dynamical models based on the existing theoretical results in the coupled cell network formalism. We also explore the concepts of quotient networks and network lifting in the context of GRNs which are related to the process of gene duplication and the phenomenon of genetic redundancy.
Slip-Squashing Factors as a Measure of Three-Dimensional Magnetic Reconnection
Creators: name: Titov, V. S.
name: Forbes, T. G.
name: Priest, E. R.
name: Mikic, Z.
name: Linker, J. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A general method for describing magnetic reconnection in arbitrary three-dimensional magnetic configurations is proposed. The method is based on the field-line mapping technique previously used only for the analysis of magnetic structure at a given time. This technique is extended here so as to analyze the evolution of magnetic structure. Such a generalization is made with the help of new dimensionless quantities called "slip-squashing factors". Their large values define the surfaces that border the reconnected or to-be-reconnected magnetic flux tubes for a given period of time during the magnetic evolution. The proposed method is universal, since it assumes only that the time sequence of evolving magnetic field and the tangential boundary flows are known. The application of the method is illustrated for simple examples, one of which was considered previously by Hesse and coworkers in the framework of the general magnetic reconnection theory. The examples help us to compare these two approaches; they reveal also that, just as for magnetic null points, hyperbolic and cusp minimum points of a magnetic field may serve as favorable sites for magnetic reconnection. The new method admits a straightforward numerical implementation and provides a powerful tool for the diagnostics of magnetic reconnection in numerical models of solar-flare-like phenomena in space and laboratory plasmas.
description: 39 pages, 9 figures, corrected typos, to appear in ApJ, March 2009
WikiChurches: A Fine-Grained Dataset of Architectural Styles with Real-World Challenges
Creators: name: Barz, Björn
name: Denzler, Joachim
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We introduce a novel dataset for architectural style classification, consisting of 9,485 images of church buildings. Both images and style labels were sourced from Wikipedia. The dataset can serve as a benchmark for various research fields, as it combines numerous real-world challenges: fine-grained distinctions between classes based on subtle visual features, a comparatively small sample size, a highly imbalanced class distribution, a high variance of viewpoints, and a hierarchical organization of labels, where only some images are labeled at the most precise level. In addition, we provide 631 bounding box annotations of characteristic visual features for 139 churches from four major categories. These annotations can, for example, be useful for research on fine-grained classification, where additional expert knowledge about distinctive object parts is often available. Images and annotations are available at: https://doi.org/10.5281/zenodo.5166987
description: NeurIPS 2021 Track on Datasets and Benchmarks
The time delay of CLASS B1600+434 from VLA multi-frequency and polarization monitoring
Creators: name: Biggs, A. D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present an analysis of archival multi-frequency Very Large Array monitoring data of the two-image gravitational lens system CLASS B1600+434, including the polarization properties at 8.5 GHz. From simulating radio light curves incorporating realistic external variability in image A, we find time delays consistent at 1 $σ$ for all frequencies and in total flux density and polarization. The delay with the smallest uncertainty (total flux density at 8.5 GHz) is $42.3^{+2.0}_{-1.8}$ (random) $\pm 0.5$ (systematic) d (equivalent to $42.3 \pm 2.1$ d) whereas combining all delay estimates gives a slightly higher value of $43.6\pm1.2$ d. Both values are lower than the previously published radio result and inconsistent with that found in the optical. $H_0$ determination is difficult due to the complicated lensing mass and the lack of constraints provided by only two images. However, analysis of archival Very Long Baseline Interferometry data reveals jets in this system for the first time, the orientations of which provide model constraints. In addition, extremely sensitive maps made from combining all the monitoring data reveal faint emission on one side of the lensing galaxy which we speculate might be the result of a naked-cusp lensing configuration. Finally, we find clear evidence for external variability in image A on time-scales of days to years, the frequency-dependence of which supports the previous conclusion that this is predominantly due to microlensing. External variability seems to be completely absent in image B and this does not appear to be a consequence of scatter-broadening in the interstellar medium of the lensing galaxy.
description: 19 pages, 12 figures, accepted for publication in MNRAS
The resonant damping of fast magnetohydrodynamic oscillations in a system of two coronal slabs
Creators: name: Arregui, Inigo
name: Terradas, Jaume
name: Oliver, Ramon
name: Ballester, Jose Luis
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Observations of transversal coronal loop oscillations very often show the excitation and damping of oscillations in groups of coronal loops rather than in individual and isolated structures. We present results on the oscillatory properties (periods, damping rates, and spatial distribution of perturbations) for resonantly damped oscillations in a system of two inhomogeneous coronal slabs and compare them to the properties found in single slab loop models. A system of two identical coronal loops is modeled, in Cartesian geometry, as being composed by two density enhancements. The linear magnetohydrodynamic (MHD) wave equations for oblique propagation of waves are solved and the damping of the different solutions, due to the transversal inhomogeneity of the density profile, is computed. The physics of the obtained results is analyzed by an examination of the perturbed physical variables. We find that, due to the interaction between the loops, the normal modes of oscillation present in a single slab split into symmetric and antisymmetric oscillations when a system of two identical slabs is considered. The frequencies of these solutions may differ from the single slab results when the distance between the loops is of the order of a few slab widths. Oblique propagation of waves weakens this interaction, since solutions become more confined to the edges of the slabs. The damping is strong for surface-like oscillations, while sausage body-like solutions are unaffected. For some solutions, and small slab separations, the damping in a system of two loops differs substantially from the damping of a single loop.
description: 25 pages, 9 figures
Infrared spectroscopy of surface charges in plasma-facing dielectrics
Creators: name: Rasek, K.
name: Bronold, F. X.
name: Fehske, H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We propose to measure the surface charge accumulating at the interface between a plasma and a dielectric by infrared spectroscopy using the dielectric as a multi-internal reflection element. The surplus charge leads to an attenuation of the transmitted signal from which the magnitude of the charge can be inferred. Calculating the optical response perturbatively in first order from the Boltzmann equation for the electron-hole plasma inside the solid, we can show that in the parameter range of interest a classical Drude term results. Only the integrated surface charge enters, opening up thereby a very efficient analysis of measured data.
description: 9 pages, 8 figures
Conditions for accretion disc formation and observability of wind-accreting X-ray binaries
Creators: name: Hirai, Ryosuke
name: Mandel, Ilya
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We explore the effect of anisotropic wind driving on the properties of accretion onto black holes in close binaries. We specifically focus on line-driven winds, which are common in high-mass X-ray binaries. In close binary systems, the tidal force from the companion star can modify the wind structure in two different ways. One is the reduction of wind terminal velocity due to the weaker effective surface gravity. The other is the reduction in mass flux due to gravity darkening. We incorporate these effects into the so-called CAK theory in a simple way and investigate the wind flow around the accretor on the orbital scale. We find that a focused accretion stream is naturally formed when the Roche lobe filling factor is $\gtrsim0.8$-0.9, analogous to that of wind Roche lobe overflow, but only when the velocity reduction is taken into account. The formation of a stream is necessary to bring in sufficient angular momentum to form an accretion disc around the black hole. Gravity darkening effects reduce the amount of accreted angular momentum, but not enough to prevent the formation of a disc. Based on these results, we expect there to be a discrete step in the observability of high-mass X-ray binaries depending on whether the donor Roche lobe filling factor is below or above $\sim$0.8-0.9.
description: accepted for publication in the Publications of the Astronomical Society of Australia
MODERN TURKISH AND UZBEKI STORIES: TYPOLOGY AND INFLUENCE
Creators: name: Zaripova, Shukurjon
Publisher: name: Zenodo
Year: 2023

description: In this article, in a period of developing literary, political, cultural and economic relations between the Turkish and Uzbek peoples, it is important to compare their literary trends, currents, and the lives of creators. Also, the study of typology in Turkish and Uzbek stories is of great importance today.
Azimuthal dependence of two-particle transverse momentum current correlations
Creators: name: Magdy, Niseem
name: Basu, Sumit
name: Gonzalez, Victor
name: Marin, Ana
name: Evdokimov, Olga
name: Lacey, Roy A.
name: Pruneau, Claude
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Two-particle transverse momentum correlation functions are a powerful technique for understanding the dynamics of relativistic heavy-ion collisions. Among these, the transverse momentum correlator $G_{2}\left(Δη,Δφ\right)$ is of particular interest for its potential sensitivity to the shear viscosity per unit of entropy density $η/s$ of the quark-gluon plasma formed in heavy-ion collisions. We use the UrQMD, AMPT, and EPOS models for Au--Au at $\sqrt{s_{\rm NN}}$ = 200~GeV and Pb--Pb at $\sqrt{s_{\rm NN}}$ = 2760~GeV to investigate the long range azimuthal dependence of $G_{2}\left(Δη,Δφ\right)$, and explore its utility to constrain $η/s$ based on charged particle correlations. We find that the three models yield quantitatively distinct transverse momentum Fourier harmonics coefficients $a^{p_{\rm T}}_{\rm n}$. We also observe these coefficients exhibit a significant dependence on $η/s$ in the context of the AMPT model. These observations suggest that exhaustive measurements of the dependence of $G_{2}\left(Δφ\right)$ with collision energy, system size, collision centrality, in particular, offer the potential to distinguish between different theoretical models and their underlying assumptions. Exhaustive analyses of $G_{2}\left(Δφ\right)$ obtained in large and small systems should also be instrumental in establishing new constraints for precise extraction of $η/s$.
description: 9 pages, 5 figures, submitted for publication
Note: Nonuniqueness of generalized quantum master equations for a single observable
Creators: name: Ng, Nathan
name: Limmer, David T.
name: Rabani, Eran
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: When deriving exact generalized master equations for the evolution of a reduced set of degrees of freedom, one is free to choose what quantities are relevant by specifying projection operators. However, obtaining a reduced description does not always need to be achieved through projections--one can also use conservation laws for this purpose. Such an operation should be considered as distinct from any kind of projection; that is, projection onto a single observable yields a different form of master equation compared to that resulting from a projection followed by the application of a constraint. We give a simple example to show this point and give relationships that the different memory kernels must satisfy to yield the same dynamics.
Coexistence of SDW, d-wave singlet and staggered $π$-triplet superconductivity
Creators: name: Aperis, A.
name: Varelogiannis, G.
name: Littlewood, P. B.
name: Simons, B. D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have studied the competition and coexistence of staggered triplet SC with d-wave singlet SC and SDW in the mean-field approximation. Detailed numerical studies demonstrate that particle-hole asymmetry mixes these states and therefore they are simultaneously present. Even more interesting were the results of our study of the influence of a uniform magnetic field. We observe novel transitions that show the characteristics of Fulde-Ferrel phases, yet they concern transitions to different combinations of the above orders. For example, above a given field, in a particle-hole symmetric system we observe a transition from d-wave singlet SC to a state in which d-wave singlet SC coexists with staggered triplet SC and SDW. We believe our results may provide, among others, a direct explanation to recent puzzles about the Fulde Ferrel like states that are apparently observed in CeCoIn5.
description: To be published in J. Phys. Cond. Mat
title: Dona militaria Гая Мария
title: Gaius Marius' dona militaria
Creators: name: Меркулов, И. В.
Publisher: name: Мнемон 22 (2022)
Year: 2022

description: В современной исторической науке тема dona militaria достаточно хорошо и подробно разработана отечественными и зарубежными учёными. В статье на основе биографии Гая Мария представлен подробный анализ dona militaria республиканской эпохи, их классификация и практическое назначение в римской армии. На основе письменных источников, содержащих сведения о наградах Гая Мария, а также археологического материала и данных эпиграфики автор попытался проследить ранний этап военной карьеры арпината, во многом обусловивший его дальнейшие достижения на политическом поприще.
description: In modern historical science the topic of dona militaria has been developed quite well and in detail by domestic and foreign scientists. Based on the biography of Gaius Marius, the article presents a detailed analysis of the dona militaria of the Republican era, their classification and practical purpose in the Roman army. On the basis of written sources containing information about the awards of Gaius Marius, as well as archaeological material and epigraphic data, the author tried to trace the early stage of the Arpinat's military career, which largely determined his further achievements in the political field.
Neuronal Shot Noise and Brownian $1/f^2$ Behavior in the Local Field Potential
Creators: name: Milstein, J. N.
name: Mormann, F.
name: Fried, I.
name: Koch, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: We demonstrate that human electrophysiological recordings of the local field potential (LFP) from intracranial electrodes, acquired from a variety of cerebral regions, show a ubiquitous $1/f^2$ scaling within the power spectrum. We develop a quantitative model that treats the generation of these fields in an analogous way to that of electronic shot noise, and use this model to specifically address the cause of this $1/f^2$ Brownian noise. The model gives way to two analytically tractable solutions, both displaying Brownian noise: 1) uncorrelated cells that display sharp initial activity, whose extracellular fields slowly decay and 2) rapidly firing, temporally correlated cells that generate UP-DOWN states.