cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Symbolic Use of Light in Hadrianic Architecture and the 'Kiss of the Sun
Creators: name: Franceschini, Marina De
name: Veneziano, Giuseppe
Publisher: name: Archaeoastronomy and Ancient Technologies
Year: 2018
Subjects: Archaeoastronomy
Pantheon Arc of Light
Hadrian’s Villa
Mausoleum of Hadrian
Roman religion
Roman Calendar
Emperor Hadrian
Pontifex Maximus
Solstice
Roccabruna
Accademia

description: In this presentation we will discuss three Roman monuments of the times of Emperor Hadrian (117138 AD): the Villa Adriana at Tivoli near Rome, the Mausoleum of Hadrian in Rome (now Castel Sant'Angelo) and finally the Pantheon (also in Rome). In all of them we see luminous phenomena which occur only in few set days during the year; they correspond to astronomical events such as the Solstices or other important dates of the Roman calendar. As we will see, this did not happen by chance and had a precise symbolic meaning. Also, we will explain why there are no written sources about Roman oriented buildings and their illuminations, producing an ancient and rare documentation: the description of the "Kiss of the Sun"
Hunting for extra dimensions in black hole shadows
Creators: name: Lemos, A. S.
name: Campos, J. A. V.
name: Brito, F. A.
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Observational data of the Sagittarius A* (Sgr A*) shadow released by the Event Horizon Telescope (EHT) are used to investigate eventual deviations in the black hole shadow radius, aiming to seek physics beyond the Standard Model (SM) coming from extra-dimensional theory. We consider the brane-world scenario described by the Randall-Sundrum model and determine the black hole shadow radius correction owing to the higher dimension. From data of the shadow radius in units of BH mass determined by KECK- and VLTI-based estimates, we imposed restrictions on the deviation obtained, and one sets an upper limit to the curvature radius of Anti-de Sitter ($\mathrm{AdS_{5}}$) spacetime $\ell\lesssim4.3\times10^{-2}\,\mathrm{AU}$ (at $95\%$ confidence level).
description: Latex, 15 pages, 3 figures; version accepted in Physical Review D
The Barec of "Piani del Monte Avaro" (Bergamo, Italy)
Creators: name: Gastaldelli, Anna
Publisher: name: Archaeoastronomy and Ancient Technologies
Year: 2018
Subjects: Astronomy
archeoastronomy
Moon
Rigel
barec
Celts
Gaspani

description: This article outlines some archaeoastronomical results about an Iron Age site gained during the "Practical Archeoastronomy Course" held the 24th and 25th of June 2017 by Prof. Adriano Gaspani. The Iron Age settlement is called "Barec dei Piani del Monte Avaro". On it where found a closed enclosure of stones formed by an elliptical drywall inside which there are some megalithic structures: a monolith on a lithic platform, another monolith on which was placed on purpose a big rock with a perfectly vertical vein of white quartz oriented astronomically in accordance with the megalithic structure. At the top of the barec there is a large erratic monolith that overhangs all the stones of the drywall. The dry stone enclosure was found to be contemporary to monolithic structures. Within the enclosure lie, in the lower area, the remainders of a probable hut bottom. The site was active during the 6th century BC and the people that most likely attended to it was the celtic tribe of the Orobi who belonged, as well as all the tribes spread in the area now known as Lombardy (located between 45° and 46° North geographical latitude) to the Golasecca Culture. This civilization dates back to the first part of Iron Age and derives from the Canegrate culture of the 13th century BC which in turn is linked to the ancient culture of Halstatt, the oldest Celts lived in Northern Europe. The results of this astronomical survey are the detection of three alignments directed toward important directions, associated with the rising and the setting of the Moon at the southern extreme standstill, that proved this complex to be a Moon Sanctuary.
How Orion’s Ability to "Walk upon the Sea" Was Attributed to Jesus: The Astronomical Basis for Christ’s Sea-Walk Miracle
Creators: name: John McHugh M., A.
Publisher: name: Archaeoastronomy and Ancient Technologies
Year: 2018
Subjects: Orion
Jesus
celestial
mythology
katasterism
sea-walk
miracle
heavenly writing
punning
wordplay

description: Irreconcilable differences found in Jesus’ "Sea-Walk" narrative imply that it was not based on eyewitness testimony, and therefore must have been founded on some other system of proof. The Christian Gospels confirm that the evangelists envisioned Jesus as the "Anointed-One" and "Son of God" whom had ascended into ouranos, "heaven," a word that also referred to the realm where the deified constellations existed. Circumstantial evidence indicates that the Gospel authors had two celestial forms of history authentication at their disposal. From Greece came the belief in katasterismos, i.e., that the constellations depicted tableaux of miraculous earthly events that had been transferred onto the stars. And from Mesopotamia came the belief that the constellations depicted divine, cuneiform "writing" which imparted inviolable truth through wordplay encrypted in each star-god’s name or epithet. While learning the Greek language the evangelists had presumably encountered the pre-Christian, Classical myths which stated that Orion could "walk upon the sea." The article demonstrates that this supernatural feat was founded on astronomical knowledge: when plotted on a star map Orion depicts a deified Man whose outstretched legs convey the idea that he was "walking" upon a celestial "Sea" delineated by the eight, contiguous, aquatic constellations (Dolphin, Goatfish, Southern Fish, Water-pourer, Twin-Fishes, River, Sea Serpent, and Ship). Moreover, wordplay encrypted in the cuneiform titles of Orion yield "Son of God" and "Anointed-One,"– terms that accord precisely with the evangelists’ conception of Jesus’ identity. We argue that these semantic correlations inspired the evangelists to envision Orion as the embodiment of Jesus and ascribe the constellation’s astronomically based sea-walking ability to the founder of Christianity. The article goes on to demonstrate that the setting of Jesus’ Sea-Walk miracle corresponds with the celestial landscape surrounding Orion, and that wordplay encrypted in the cuneiform titles of Orion’s stellar SeaWalk tableau correspond with the common themes found in Jesus’ Sea-Walk miracle as well as the stories’ jarring incongruities.
Finiteness of Crystalline Cohomology of Higher Level
Creators: name: Miyatani, Kazuaki
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We prove the finiteness of crystalline cohomology of higher level. An important ingredient is a "higher de Rham complex" and a kind of Poincaré lemma for it.
description: 24 pages; to appear in Annales de l'Institut Fourier
MPEC 2023-X204 : 2023 XR7
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 XR7

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
D 5.3 Preliminary foot-controlled pneumatic flow for bioprinting
Creators: name: Tomasz Gapinski
name: Krzysztof Lenartowicz
name: Paulina Galas
name: Małgorzata Gonsior
name: Wojciech Kręciszek
name: Irene Bernardeschi
name: Leonardo Ricotti
Publisher: name: Zenodo
Year: 2019

description: This deliverable reports a preliminary description of the handheld bioprinting system to be
used for delivering the hydrogel containing ASC cells, carbon nanomaterials and piezoelectric
particles into cartilage defects, by following a foot-controlled pneumatic printing strategy
based on the specifications devised in the deliverable D2.1. Expected results are reported.
The concept design for the DEMONSTRATOR covers aspects related to:
- Determination of primary extrusion method
- Suitable design of the Control Unit to allow driving the extrusion as well as set different
working parameters
- Definition of the cartridge geometry (i.e. commercially available syringe based
solution)
- Design of the extrusion tube and tip geometry
- Design of a footswitch that will allow to use and to operate the system.
The aim is to build a basic system allowing extrusion of the nanocomposite hydrogel in
conditions simulating the final application. The assumption is to regulate the speed of
extruded material by means of 3 independent channels as well as to allow the switching
between different modes (predefined or stored settings) of operation (3 modes for each
channel). Fixing working settings for each of mode will be the matter of further investigations.
Symbolic Algorithms for Qualitative Analysis of Markov Decision Processes with Büchi Objectives
Creators: name: Chatterjee, Krishnendu
name: Henzinger, Monika
name: Joglekar, Manas
name: Shah, Nisarg
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: We consider Markov decision processes (MDPs) with ω-regular specifications given as parity objectives. We consider the problem of computing the set of almost-sure winning states from where the objective can be ensured with probability 1. The algorithms for the computation of the almost-sure winning set for parity objectives iteratively use the solutions for the almost-sure winning set for Büchi objectives (a special case of parity objectives). Our contributions are as follows: First, we present the first subquadratic symbolic algorithm to compute the almost-sure winning set for MDPs with Büchi objectives; our algorithm takes O(n \sqrt{m}) symbolic steps as compared to the previous known algorithm that takes O(n^2) symbolic steps, where $n$ is the number of states and $m$ is the number of edges of the MDP. In practice MDPs have constant out-degree, and then our symbolic algorithm takes O(n \sqrt{n}) symbolic steps, as compared to the previous known $O(n^2)$ symbolic steps algorithm. Second, we present a new algorithm, namely win-lose algorithm, with the following two properties: (a) the algorithm iteratively computes subsets of the almost-sure winning set and its complement, as compared to all previous algorithms that discover the almost-sure winning set upon termination; and (b) requires O(n \sqrt{K}) symbolic steps, where K is the maximal number of edges of strongly connected components (scc's) of the MDP. The win-lose algorithm requires symbolic computation of scc's. Third, we improve the algorithm for symbolic scc computation; the previous known algorithm takes linear symbolic steps, and our new algorithm improves the constants associated with the linear number of steps. In the worst case the previous known algorithm takes 5n symbolic steps, whereas our new algorithm takes 4n symbolic steps.
Entanglement across sliding-pinned transition of ion chains in optical cavities
Creators: name: Kahan, Alan
name: Cormick, Cecilia
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Dissipative quantum systems can under appropriate conditions exhibit bi- or multi-partite entanglement at the steady state. The presence and properties of these quantum correlations depend on the relevant model parameters. Here, we characterize the steady-state entanglement in connection with the spatial structure of a small chain of three ions dispersively coupled with a pumped optical cavity. Within a semiclassical approximation, we describe the relation between entanglement, spatial organization, and vibrational modes of the ion chain. Upon increasing the pumping strength, our system undergoes a transition from a sliding to a pinned configuration, in which ions are expelled from the maxima of the optical potential. The features of the steady-state entanglement strongly depend on the kind of pinned configuration reached. We identify scenarios leading to entangled steady states, analyze the effect of defect formation upon entanglement between different system partitions, and observe the presence of multipartite quantum correlations.
description: 16 pages, 15 figures
The Wolf's Jaw: an Astronomical Interpretation of Ragnarök
Creators: name: Langer, Johnni
Publisher: name: Archaeoastronomy and Ancient Technologies
Year: 2018
Subjects: Comets and eclipses
Cultural Astronomy
Folk Astronomy
Hyades
Viking Age
Norse Mythology
Ragnarök

description: This paper aims to explain the eschatological outbreak that occurred during the X century in Scandinavia and northern Europe, which gave rise to a great iconography of Ragnarök, stemmed primarily from the Old Norse mythology. Our basic hypothesis is that various astronomical phenomena which occurred during in the VIII and IX centuries (total eclipses of the sun and passages of comets, both related to the constellation of Wolf ́s Jaw the Hyades) have aroused in the Nordic man his eschatological fears, impelling him to create a large amount apocalyptic images close of the year 1000 AD. We identified thirteen celestial phenomena (comet passages and total eclipses of the Sun) that may have been collected in the construction of the Ragnarök image among the ancient Norsemen. Our main methodology is the Cultural Astronomy, coupled with the prospects of the cultural history of myths. Aided by several studies on medieval astronomical folklore, especially those related to comets and eclipses. We also use some recent research on the theme of celestial myths and Old Norse Astronomy developed by European and American scholars, such as Gísli Sigurðsson, Thomas DuBois, Christan Etheridge and Dorian Knight.
Rock Art and Archaeoastronomy in Morocco: Preliminary Observations
Creators: name: Abderrahmane Ibhi
name: Khiri, Fouad
name: Lahcen Ouknine
name: Abdelkhalek Lemjidi
name: Asmahri, El Mahfoud
Publisher: name: Archaeoastronomy and Ancient Technologies
Year: 2018
Subjects: Petroglyphs
Meteor
Bolide
Archaeoastronomy
Tifinagh inscriptions
Morocco.

description: The purpose of this paper is to make public the exceptional discovery in the province of Essaouira (Morocco) of three petroglyphs engraved with an original subject in Moroccan rock art. By incision, astronomical, anthropomorphic, zoomorphic figures with Tifinagh inscriptions are engraved. The distribution and the nature of the engraved subjects evoke, most probably, a testimony with a material document on a natural disaster caused most likely by the fall of a great meteorite contributing, thus; to the understanding of the Ancient History of natural disasters in Morocco.
Rapid screening of gas solubility in ionic liquids using biased particle insertions with pre-sampled liquid trajectories
Creators: name: Smith, Ryan W.
name: Maginn, Edward J.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Space Science
Physical Sciences not elsewhere classified
Biotechnology
Chemical Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Computational Biology

description: We present an efficient, general-purpose variant of the Widom test particle insertion method for computing chemical potentials of gaseous solutes in fluids or porous solids. The method is implemented in the Monte Carlo molecular simulation engine Cassandra, but receiving phase configurations are independent of this process and may be pre-sampled by other molecular simulation engines such as molecular dynamics codes. Efficiency enhancements present in this method include configurational biasing and accelerated atomic overlap detection. When applied to the estimation of Henry's law constants of atomistic difluoromethane and pentafluoroethane in ionic liquids, the accelerated overlap detection results in a speedup of more than an order of magnitude compared to conventional methods without sacrificing accuracy. We found good agreement between this method and Hamiltonian replica exchange (HREX) for Henry's law constant and absorption isotherm estimation. This embarrassingly parallel method is especially well suited for screening Henry's law constants of many small gases in the same solvents, since a liquid trajectory can be reused for as many solutes as desired.
About the Foroughi Cup and about the seven planets in the Ancient World
Creators: name: Codebo, Mario
name: Santis, Henry De
Publisher: name: Archaeoastronomy and Ancient Technologies
Year: 2018
Subjects: Foroughi Cup
planets
Moon
Sun
Aramaic cultur

description: The Foroughi Cup is an artefact of the 8th century BC of Aramaic cultural context, inside which images of stars and constellations are reproduced. In this study of ours we start from the conclusions reached by Amadasi Guzzo and Castellani in their two works of 2005 and 2006 and we add some further considerations and identifications. We then explain the hypothesis that some cultures of the Ancient World include seven planets, excluding the Moon and the Sun, because Mercury and Venus, always visible only at dawn or at sunset, were perhaps considered four different planets. Finally, we propose the thesis that their evil character depends, as for every new star (novae, supernovae, comets, etc.), on the fact that they alter the synchrony of the cosmos with their variable motion (variable declination heaven bodies).
Additional file 1 of The lasting impact of COVID-19 on surgical training from the perspective of surgical residents and consultants in Saudi Arabia: a nationwide cross-sectional study
Creators: name: Qedair, Jumanah T.
name: Alnahdi, Wejdan A.
name: Mortada, Hatan
name: Alnamlah, Abdulrahman A.
name: Almadani, Raghad Z.
name: Hakami, Alqassem Y.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Supplementary Material 1
New examples of constant mean curvature surfaces in $\mathbb{S}^2\times\mathbb{R}$ and $\mathbb{H}^2\times \mathbb{R}$
Creators: name: Manzano, José M.
name: Torralbo, Francisco
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: Primary 53C42, Secondary 53C30

description: We construct non-zero constant mean curvature H surfaces in the product spaces $\mathbb{S}^2 \times \mathbb{R}$ and $\mathbb{H}^2\times \mathbb{R}$ by using suitable conjugate Plateau constructions. The resulting surfaces are complete, have bounded height and are invariant under a discrete group of horizontal translations. In $\mathbb{S}^2\times\mathbb{R}$ (for any $H > 0$) or $\mathbb{H}^2\times\mathbb{R}$ (for $H > 1/2$), a 1-parameter family of unduloid-type surfaces is obtained, some of which are shown to be compact in $\mathbb{S}^2\times\mathbb{R}$. Finally, in the case of $H = 1/2$ in $\mathbb{H}^2 \times \mathbb{R}$, the constructed examples have the symmetries of a tessellation of $\mathbb{H}^2$ by regular polygons.
description: 22 pages, 5 figures
Etude du retrait empêché d’un matériau argileux en utilisant le ring test
Creators: name: Bouchemella, Salima
name: El Hajjar, Ahmad
name: Verheecke, Alexandre
name: Serbah, Hocine
name: Ouahbi, Tariq
name: Taibi, Saïd
Publisher: name: Academic Journal of Civil Engineering
Year: 2019

description: Ce travail présente une étude expérimentale d’un retrait empêché et de la fissuration en utilisant l’essai à l’anneau. Cette étude est réalisée sur une kaolinite afin de mesurer les déformations développées lors du séchage, et de suivre le mécanisme de l’initiation de la fissuration. De cet essai les paramètres responsables de la fissuration dans le matériau sont quantifiés à savoir la succion et la contrainte de la traction.
description: Academic Journal of Civil Engineering, Vol 36 No 1 (2018): Special Issue - RUGC 2018 St Etienne
Least-squares fit to a straight line when each variable contains all equal errors
Creators: name: Petrolini, Alessandro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: The least squares fit to a straight line, when both variables are affected by all equal uncorrelated errors, leads to very simple results for both the estimated parameters and their standard errors, of widespread applicability. In this paper several formulas are derived, presenting a full set of results about the estimated parameters and their standard errors. All the results have been validated with extensive Monte Carlo simulations. The emphasis of the paper is on the calculation and properties of the best-fit parameters and their standard errors.
description: Section IV-D was corrected; reference to the published paper added; 31 pages and 53 figures
Proposed modification to a muscle-like acid-base switchable [2](2)rotaxane for improved force delivery
Creators: name: Dinh, Tina T.
name: Bazargan, Gloria
name: Sohlberg, Karl
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Biochemistry
Physical Sciences not elsewhere classified
Biotechnology
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified

description: Switchable rotaxanes are good candidates for molecular machines because of their ability to undergo reversible and repeatable co-conformational isomerism in response to an external stimulus. An acid-base switchable [2](2)rotaxane reported by Li et al. [J Org Chem. 79(15): [6996–7004] has been reported to exhibit a 48% change in length upon a stimulus-induced change in protonation state, suggesting that it could serve as the fundamental element of a ‘molecular muscle’. In the present work, the mechanical behaviour of this topologically complex system is explored with calculations based on semiempirical electronic structure theory. Our calculations predict that the original system will not work as envisioned. Although the calculations confirm a 48% change in length, they also reveal an energy barrier to ring shuttling upon deprotonation, preventing the immediate delivery of force. Therefore, a modification to the system is proposed. Similar semiempirical calculations were carried out on the modified system and the force calculated. The average force generated from the modified system is predicted to be approximately −86 pN. The results demonstrate that the proposed modification reduces the force generated by ring shuttling by 11% but largely eliminates the energy barrier to ring shuttling so that the force is immediately available.
Investigating SiO Emission in the ALMA-IMF Sample of Massive Protoclusters
Creators: name: Towner, A. P. M.
name: Ginsburg, A.
Publisher: name: Zenodo
Year: 2021

description: In this poster, we present initial results from the SiO J=5-4 emission in the ALMA-IMF sample. We note significant SiO emission associated with high-velocity outflows, as expected. We also note significant SiO flux density which is not associated with high-velocity outflows, contrasting with the longstanding assumption that SiO emission is associated primarily with high-velocity shocks (v ≥ 10 km/s, Schilke et al. 1997) and further supporting previous observations of SiO emission associated with low-velocity activity in the literature (e.g. Louvet et al. 2018; Duarte-Cabral et al. 2014). We find no obvious correlation in degree of outflow activity (number of outflows) with protocluster evolutionary state.
Assessing the structural dynamics of the glucose-6-phosphate dehydrogenase dimer interface using molecular dynamics simulation and ligand screening using computer aided drug discovery
Creators: name: Louis, Naveen Eugene
name: Hamza, Muaawia Ahmed
name: Baharuddin, Puteri Nur Sarah Diana Engku
name: Chandran, Shamini
name: Latif, Nurriza Ab
name: Alonazi, Mona Awad
name: Jamalis, Joazaizulfazli
name: Warsy, Arjumand
name: Amran, Syazwani Itri
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Biochemistry
Medicine
Cell Biology
Pharmacology
Biotechnology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Cancer
Computational Biology

description: Glucose-6-phosphate-dehydrogenase deficiency is the most common enzymopathy. Current therapies for G6PD deficiency are unable to treat a broad range of pathogenic variants. In this study, we assess the structural dynamics of six G6PD variants using molecular dynamics simulation to correlate their genotypic and phenotypic attributes. G6PD multimerisation is highly influenced by its ligands G6P and NADP, where the former disrupts dimer formation, and the latter facilitates tetramerisation. Results of our simulation demonstrate that the WT and a relatively stable variant (G131V), were found to have greater NADP binding occupancy and hydrogen bonds between βN sheet of each monomeric subunit, thereby increasing the stability of the dimer interface. G6PD protein structures with high structural integrity at the dimer interface were found to be compact, characterised by low radius of gyration values, and increased surface area or high solvent-accessible surface area at the tetramer salt bridge residues. Using mutational clustering methods, a critical G6PD region at the βK–βL loop was identified and may serve as a potential target for treatment. We further extend this study to identify chemical compounds that induce modulatory effects on the protein using computer aided drug discovery which warrant further studies and future testing.
The role of outflows in black-hole X-ray binaries
Creators: name: Kylafis, N.
name: Reig, P.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The hot inner flow in black-hole X-ray binaries is not just a static corona rotating around the black hole, but it must be partially outflowing. We have developed a model, in which Comptonization takes place in this outflowing corona. We are able to reproduce quantitatively five observed correlations: a) the time lag as a function of Fourier frequency, b) the time lag as a function of photon energy, c) the time lag as a function of $Γ$, d) the time lag as a function of the cut-off energy in the spectrum, and e) the long-standing radio - X-ray correlation. All of them with only two parameters (optical depth and width of the outflow), which vary in the same ranges for all the correlations. Our model does not require a compact, narrow relativistic jet, although its presence does not affect the results. The essential ingredient of our model is the parabolic shape of the Comptonizing corona. The outflow speed also plays a minor role. Furthermore, the bottom of the outflow, in the hard state, looks like a ``slab'' to the incoming soft photons from the disk, and this can explain the observed X-ray polarization, which is along the outflow.
description: Accepted for publication in A&A
Tangential thickness of manifolds
Creators: name: Kwasik, Sławomir
name: Schultz, Reinhard
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: Given two compact n-dimensional manifolds in the smooth, piecewise linear or topological categories, basic results of B. Mazur and others give simple criteria for determining whether their products with Euclidean spaces of sufficiently large dimension are isomorphic in the given category. This paper studies such questions when the dimensions of the Euclidean space do not satisfy such a condition, mainly for topological manifolds homotopy equivalent to lens spaces with odd prime order fundamental groups. In particular, complete information is obtained for homotopy lens spaces in most dimensions when the Euclidean space is even dimensional. The proofs use basic techniques from surgery theory and a variety of results from homotopy theory, including results of Cohen, Moore and Neisendorfer related to finite exponents of certain unstable homotopy groups.
Valorisation des sédiments dans les travaux de remplissage
Creators: name: Abdallah, Rafik
name: Zambon, Agnes
name: Saliba, Jacqueline
name: Saiyouri, Nadia
Publisher: name: Academic Journal of Civil Engineering
Year: 2019

description: L’objectif de ce travail est de valoriser des sédiments non traités dans la formulation d’un béton allégé. Pour cela, un béton mousse innovant a été développé en remplaçant le sable fin par des sédiments. Plusieurs essais expérimentaux ont été réalisés pour, dans un premier temps, caractériser les sédiments et dans un second temps déterminer les propriétés du béton de mousse à l’état frais et à l’état durci. Le pourcentage en masse de ciment et le pourcentage volumique de mousse ont été variés de 12% à 18% et de 0, 30 à 50% respectivement. Des essais de compression ont été effectués sur des éprouvettes à 7 et 28 jours. La technique non destructive des ultrasons a été aussi utilisée pour suivre le durcissement du béton allégé. Les résultats ont montré que les propriétés mécaniques comme la résistance à la compression, le module de Young et la vitesse des ondes ultrasonores augmentent avec l’ajout du ciment et diminuent avec le % de mousse avec des valeurs acceptables pour des travaux de remplissage.
description: Academic Journal of Civil Engineering, Vol 36 No 1 (2018): Special Issue - RUGC 2018 St Etienne
Social processes in ancient Europe and changes in the use of ore and alloys in metallurgical production
Creators: name: Grigoriev, Stanislav A.
Publisher: name: Archaeoastronomy and Ancient Technologies
Year: 2018
Subjects: Europe
Bronze Age
ore
types of alloys
socio-economic relations

description: In archeometallurgy, the main trends in the development of ancient technologies are well studied. And, usually they are considered as two principal trends. The first is associated with the type of minerals used: native copper — oxidized minerals — sulfide minerals. The second trend is associated with the types of metal used: pure copper – arsenic and antimony-arsenic copper – tin bronze. On the basis of materials from Northern Eurasia, we demonstrated that both these trends were interrelated (Grigoriev, 2017). The transition to new types of raw materials caused the transition to new types of copper alloys. This was caused, for example, as in the case of the transition from arsenic alloys to tin, by that in the production of arsenic alloy, ore with additions of arsenic minerals was smelted. But after the following transition to richer ores from quartz or to sulphides, conditions were created in the furnace when arsenic evaporated, which made it impossible to produce alloyed metal. This caused the transition to tin alloys, as tin was alloyed directly with copper. In the long run, this system depended on socio-economic processes, since they stimulated the growth of metal consumption and the need to use other types of ores. Tin, whose deposits are very rare, provoked prerequisites for creating a wide network of trade and exchange. The task of this work was to study this system on the European material. The analysis showed that, in general, to Europe all the same regularities may be applied, which makes it possible to consider them as universal. There are some differences caused by the abundance of fahlores in Europe, which made it possible to produce antimony-arsenic alloys in some regions. Another feature is a higher level of economic development, compared with the Eurasian situation, and the proximity of the Eastern Mediterranean, where early civilizations arose rather early. As a result, a global network of trade and exchange was formed in Europe already by the Middle Bronze Age.
Sediment storage and transport in gravel bed streams
Creators: name: McDowell, Conor
Publisher: name: University of British Columbia
Year: 2022

description: In order to predict the response of mountain streams to perturbations caused by climate and land use changes, a better understanding of the sediment transport processes that drive channel morphodynamics is required. Rivers deform systematically, with zones of erosion and deposition related to units of channel morphology (e.g., bars, pools, riffles). Changes in bed topography that build and maintain this morphology are caused by the aggregated displacements of individual particles, either though their entrainment or deposition. Previous studies aiming to link individual particle displacements to channel morphology and topographic change only provide qualitative descriptions of these dynamics. This thesis uses bedload tracing and topographic surveys across a range of laboratory and field settings to link the motions of individual particles to resulting topographic change. First, we apply Bayesian statistics to quantify along-channel trapping probabilities, a measure of the depositional influence of channel segments. These trapping probabilities are used as inputs into a survival model which successfully reconstructs particle travel distances. The results from this model demonstrate that some segments of the channel preferentially trap particles and that these traps are a major control on particle path lengths. Second, we compare trapping probabilities estimated using tracers and topographic differencing across four fluvial environments. In doing so, we demonstrate how the displacements of individual particles scale to create depositional zones along the channel. Finally, we monitor the response of a small mountain stream to a large episodic sediment pulse. We compare stream morphodynamics before and after the pulse to demonstrate how the historical trapping behavior of a river guides the river's response.
Molecular dynamics investigation of the interaction between volatile organic compounds and deep eutectic solvents
Creators: name: Panda, Deepak Kumar
name: Bhargava, B. L.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Mental Health
subject: Computational Biology

description: Mixtures of tetrabutylammonium-chloride-based deep eutectic solvent (DES) and three volatile organic compounds (VOCs) – butanal, ethanol, and toluene – have been investigated using classical molecular dynamics simulations. Various structural analyses like radial and spatial distribution functions reveal the presence of specific interactions between DES components and VOCs. The interaction between the VOC and DES components depends on the nature of the former. Both ethanol and butanal have an H-bond interaction with chloride and ethylene glycol. Tetrabutylammonium cations are present above and below the ring of toluene due to the presence of π electron cloud, and toluene also forms π hydrogen bonds with ethylene glycol. The structure of DES is not significantly affected by the absorption of VOCs, which is reflected in their radial distribution functions. Components of DES become more mobile with the addition of VOCs. The interfacial region was found to be the most favourable location for the presence of VOCs.
The ALMA-ALPAKA survey II. Evolution of turbulence in galaxy disks across cosmic time: difference between cold and warm gas
Creators: name: Rizzo, F.
name: Bacchini, C.
name: Kohandel, M.
name: Di Mascolo, L.
name: Fraternali, F.
name: Roman-Oliveira, F.
name: Zanella, A.
name: Popping, G.
name: Valentino, F.
name: Magdis, G.
name: Whitaker, K.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The gas in the interstellar medium (ISM) of galaxies is supersonically turbulent. Measurements of turbulence typically rely on cold gas emission lines for low-z galaxies and warm ionized gas observations for z>0 galaxies. Studies of warm gas kinematics at z>0 conclude that the turbulence strongly evolves as a function of redshift, due to the increasing impact of gas accretion and mergers in the early Universe. However, recent findings suggest potential biases in turbulence measurements derived from ionized gas at high-z, impacting our understanding of turbulence origin, ISM physics and disk formation. We investigate the evolution of turbulence using velocity dispersion ($σ$) measurements from cold gas tracers (i.e., CO, [CI], [CII]) derived from a sample of 57 galaxy disks spanning the redshift range z=0-5. This sample consists of main-sequence and starburst galaxies with stellar masses $\gtrsim 10^{10} M_{\odot}$. The comparison with current H$α$ kinematic observations and existing models demonstrates that the velocity dispersion inferred from cold gas tracers differ by a factor of $\approx 3$ from those obtained using emission lines tracing warm gas. We show that stellar feedback is the main driver of turbulence measured from cold gas tracers. This is fundamentally different from the conclusions of studies based on warm gas, which had to consider additional turbulence drivers to explain the high values of $σ$. We present a model predicting the redshift evolution of turbulence in galaxy disks, attributing the increase of $σ$ with redshift to the higher energy injected by supernovae due to the elevated star-formation rate in high-z galaxies. This supernova-driven model suggests that turbulence is lower in galaxies with lower stellar mass compared to those with higher stellar mass. Additionally, it forecasts the evolution of $σ$ in Milky-Way like progenitors.
description: Accepted for publication in A&A. The abstract has been modified to comply with arXiv's character limit
ExVivoMicroTest: Ex-Vivo Testing of Microservices (Online Appendix)
Creators: name: Gazzola, Luca
name: Goldstein, Maayan
name: Mariani, Leonardo
name: Mobilio, Marco
name: Segall, Itai
name: Tundo, Alessandro
name: Ussi, Luca
Publisher: name: Zenodo
Year: 2022

description: This is the online appendix of the paper Luca Gazzola, Maayan Goldstein, Leonardo Mariani, Marco Mobilio, Itai Segall, Alessandro Tundo and Luca Ussi. "ExVivoMicroTest: Ex-Vivo Testing of Microservices." Journal of Software: Evolution and Process (Special Issue: Automation of Software Test and Test Code Quality). (Accepted on 03/2022). The abstract of the paper follows: Microservice-based applications consist of multiple services that can evolve independently. When a service must be updated, it is first tested with in-house regression test suites. However, the test suites that are executed are usually designed without the exact knowledge about how the services will be accessed and used in the field, therefore they may easily miss relevant test scenarios, failing to prevent the deployment of faulty services.
 To address this problem, we introduce ExVivoMicroTest, an approach that analyzes the execution of deployed services at run-time in the field, in order to generate test cases for future versions of the same services. ExVivoMicroTest implements lightweight monitoring and tracing capabilities, to inexpensively record executions that can be later turned into regression test cases that capture how services are used in the field. To prevent accumulating an excessive number of test cases, ExVivoMicroTest uses a test coverage model that can discriminate the recorded executions between the ones that are worth to be turned into test cases and the ones that should be discarded. The resulting test cases use a mocked environment that fully isolates the service under test from the rest of the system to faithfully reply interactions.
 We assessed ExVivoMicroTest with the PiggyMetrics and Train Ticket open source microservice applications and studied how different configurations of the monitoring and tracing logic impact on the capability to generate test cases.
Retrait et fissuration des sols argileux par dessiccation
Creators: name: El Hajjar, A.
name: Eid, J.
name: Bouchemella, S.
name: Ouahbi, T.
name: Taibi, S.
Publisher: name: Academic Journal of Civil Engineering
Year: 2019

description: Durant ces dernières années, les chercheurs sont de plus en plus intéressés par la construction en terre crue. Ceci est dû à plusieurs caractéristiques : une faible consommation en énergie grise, une disponibilité quasi-immédiate, et une bonne isolation phonique et thermique. En dépit de ces avantages, l’utilisation de cette technique de construction reste un peu limitée à cause du retrait par dessication préjudiciable, en particulier dans certaines zones de sécheresse. Un retrait conséquent est susceptible d’endommager l’ouvrage grâce aux fissurations. Ce travail traite, par corrélation d’images numériques, l’évolution de la déformation d’échantillons argileux, dès le début du retrait et jusqu’à l’amorce de la fissure. Afin de comprendre l’origine de la fissuration, la dessiccation est étudiée pour différentes conditions aux limites et en fonction des caractéristiques intrinsèques du matériau. Plus les grains du sol sont fins, plus la fissuration du sol est importante.
description: Academic Journal of Civil Engineering, Vol 36 No 1 (2018): Special Issue - RUGC 2018 St Etienne
title: Художественный текст Михаила Пришвина: лингвостилистический аспект
title: Монография
titleType: Subtitle
Creators: name: Святославский А.В.
Publisher: name: Московский педагогический государственный университет
Year: 2019

description: Монография посвящена анализу лингвистических, коммуникативно-риторических и символико-семиотических аспектов художественного текста Михаила Михайловича Пришвина с точки зрения выявления наиболее типичных, константных особенностей его идиостиля, а также явлений, отражающих творческую эволюцию писателя. Объектом анализа стали книги очерков Пришвина «В стране непуганых птиц» и «За волшебным колобком», цикл «старых рассказов» 1910–1912 гг., повесть «Мирская чаша», автобиографический роман «Кащеева цепь», повесть-поэма «Женьшень», поэма «Фацелия», роман-сказка «Осударева дорога» и рассказ «Москва-река». Отельные главы посвящены краткому обзору проблемы стиля и языка в филологической науке XX в. и собственным размышлениям Пришвина о проблеме языка художественного произведения.
description: The monograph is devoted to analysis of linguistic, communicative and rhetorical, and the symbolic and semiotic aspects of literary text, Mikhail Mikhailovich Prishvin from the point of view of identifying the most typical, constant peculiarities of his author's style, as well as phenomena that reflect the creative evolution of the writer. The object of the analysis was the book of essays Prishvin "In the land of never frightened birds" and "the magic circle", the cycle "old stories" 1910-1912, the story "World Cup", the autobiographical novel "kashcheeva chain" novel-poem "Ginseng", the poem "Phacelia", fairy-tale "the Czar's road" and the story "Moscow river". The hospitality of the Chapter is devoted to a brief overview of the problem of style and language in the philological science of the XX century and his own thoughts Prishvin on the problem of language of the artwork.
Influence de la disposition du ferraillage sur le comportement des voiles courts en béton armé sous chargement sismique
Creators: name: Belaidi, Ourdia
name: Nekmouche, Amine
name: Boukais, Said
name: Kezmane, Ali
name: Kheloui-Taouche, Fatma
name: Si Hadjmohand, Nadjet
Publisher: name: Academic Journal of Civil Engineering
Year: 2019

description: La résistance d'un voile béton armé est liée à son ferraillage, et l'efficacité d'un ferraillage est directement liée à sa disposition et à son orientation dans la structure. Expérimentalement, les voiles en béton armé sous chargement horizontal, cyclique et sismique ont un comportement plus performant lorsque les barres d'acier sont orientées suivant la direction des contraintes principales. Celles – ci sont directement reliées à un angle d'inclinaison qui est souvent à rechercher afin d'améliorer la performance mécanique de ces voiles. L'objectif essentiel de ce travail consiste à chercher une bonne disposition du ferraillage, et cela en cherchant l'angle d'inclinaison des barres diagonales le plus adéquat afin d'améliorer la performance mécanique des voiles courts. Les voiles sont sollicités à la base par un chargement dynamique non linéaire de type accélérogramme sismique. Les résultats de la simulation mettent en exergue la performance mécanique du ferraillage suivant la direction des contraintes principales par rapport au ferraillage classique.
description: Academic Journal of Civil Engineering, Vol 36 No 1 (2018): Special Issue - RUGC 2018 St Etienne
The Evolution of Accreting Population III Stars at 10$^{-6}$-10$^3$ M$_\odot$/yr
Creators: name: Nandal, Devesh
name: Zwick, Lorenz
name: Whalen, Daniel J.
name: Mayer, Lucio
name: Ekström, Sylvia
name: Meynet, Georges
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The first stars formed over five orders of magnitude in mass by accretion in primordial dark matter halos. We study the evolution of massive, very massive and supermassive primordial (Pop III) stars over nine orders of magnitude in accretion rate. We use the stellar evolution code GENEC to evolve accreting Pop III stars from 10$^{-6}$ - 10$^3$ M$_\odot$/yr and study how these rates determine final masses. The stars are evolved until either the end of central Si burning or until they encounter the general relativistic instability (GRI). We also examine how metallicity affects the evolution of the stars. At rates below $2.5 x 10^{-5}$ M$_\odot$/yr the final mass of the star falls below that required for pair-instability supernovae. The minimum rate required to produce black holes with masses above 250 M$_\odot$ is $5 x 10^{-5}$ M$_\odot$/yr, well within the range of infall rates found in numerical simulations of halos that cool via H$_2$, $10^{-3}$ M$_\odot$/yr. At rates of $5 x 10^{-5}$ M$_\odot$/yr to $4 x 10^{-2}$ \Ms\ yr$^{-1}$, like those expected for halos cooling by both H$_2$ and Ly-alpha, the star collapses after Si burning. At higher accretion rates the GRI triggers the collapse of the star during central H burning. Stars that grow at above these rates are cool red hypergiants with effective temperatures $log(T_{\text{eff}}) = 3.8$ and luminosities that can reach 10$^{10.5}$ L$_\odot$. At accretion rates of 100 - 1000 M$_\odot$/yr the gas encounters the general relativistic instability prior to the onset of central hydrogen burning and collapses to a black hole with a mass of 10$^6$ M$_\odot$ without ever having become a star. We reveal for the first time the critical transition rate in accretion above which catastrophic baryon collapse, like that which can occur during galaxy collisions in the high-redshift Universe, produces supermassive black holes via dark collapse.
description: 11 pages, 8 figures