cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nonclassical correlations in decaying systems
Creators: name: Sołtan, Stanisław
name: Bednorz, Adam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A quantum decaying system can reveal its nonclassical behavior by being noninvasively measured. Correlations of weak measurements in the noninvasive limit violate the classical bound for a universal class of systems. The violation is related to the incompatibility between exponential decay and unitary evolution. The phenomenon can be experimentally observed by continuous weak measurements and a large class of observables. The nonclassical nature of such a system allows us to treat it as a potential quantum resource.
description: 10 pages, 4 figures
Pressure-driven phase transitions in bulk HfS$_2$
Creators: name: Grzeszczyk, M.
name: Gawraczyński, J.
name: Woźniak, T.
name: Ibáñez, J.
name: Muhammad, Z.
name: Zhao, W.
name: Molas, M. R.
name: Babiński, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The effect of hydrostatic pressure up to 27 GPa on the Raman scattering (RS) in bulk HfS$_2$ is investigated. There are two transformations of RS spectra, which take place during compression at pressure between 5.7 GPa and 9.8 GPa as well as between 12.8 GPa and 15.2 GPa. Seven vibrational modes can be observed after the transformation, as compared to four modes before the transformation. The observed change suggests structural change in the material of yet unknown nature. The frequencies of the RS modes observed above the transformation change linearly with pressure and corresponding pressure coefficients have been determined. The other transition manifests itself as a change in the RS lineshape. While a series of well-defined RS modes are observed under pressure below the transition, broad spectral bands can be seen at higher pressure. The overall lineshape of the spectra resembles that of disordered materials. The lineshape does not change during decompression, which suggests permanent nature of the high-pressure transition.
description: 4 pages, 4 figures
Magnetic quivers for rank 2 theories
Creators: name: Bourget, Antoine
name: Grimminger, Julius F.
name: Martone, Mario
name: Zafrir, Gabi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this note we construct magnetic quivers for the known rank-2 four dimensional $\mathcal{N}=2$ superconformal field theories. For every rank-1 theory one can find a unitary magnetic quiver; we observe that this is no longer possible at rank 2. Our list of magnetic quivers necessarily includes orthosymplectic quivers, in addition to unitary ones, of both the simply and non-simply laced variety. Using quiver subtraction, one can compute Higgs branch Hasse diagrams and compare with the results obtained via other methods finding nearly perfect agreement.
Agathis semiaciculata Ivanov 1899
Creators: name: Samin, Najmeh
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Agathis
Agathis semiaciculata

description: Agathis semiaciculata Ivanov, 1899
 Material examined: Province of Qazvin: QAZviN, 36°26′N 49°49′E, (2♂♂ ), October 2007. New record for Iran .
 Distribution outside Iran: Azerbaijan, Bulgaria, France, Georgia, Germany, Greece, Italy, Japan, Kazakhstan, Moldova, Mongolia, Poland, Russia, Switzerland, Turkmenistan, Ukraine.
description: Published as part of Samin, Najmeh, 2015, A faunistic study on the Braconidae of Iran (Hymenoptera ¡ Ichneumonoidea)., pp. 339-345 in Arquivos Entomolóxicos 13 on page 340, DOI: 10.5281/zenodo.12714944
Design, fabrication and low-power RF measurement of an X-band dielectric-loaded accelerating structure
Creators: name: Wei, Yelong
name: Bursali, Hikmet
name: Grudiev, Alexej
name: Freemire, Ben
name: Jing, Chunguang
name: Bedolla, Joel Sauza
name: Wegner, Rolf
name: Welsch, Carsten
Publisher: name: arXiv
Year: 2021
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Dielectric-loaded accelerating (DLA) structures are being studied as an alternative to conventional disk-loaded copper structures to produce the high accelerating gradient. This paper presents the design, fabrication and low-power RF measurement of an externally-powered X-band DLA structure with a dielectric constant epsilon_r=16.66 and a loss tangent tan_delta=0.0000343. A dielectric matching section for coupling the RF power from a circular waveguide to an X-band DLA structure consists of a very compact dielectric disk with a width of 2.035 mm and a tilt angle of 60 degree, resulting in a broadband coupling at a low RF field which has the potential to survive in the high-power environment. Based on simulation studies, a prototype of the DLA structure was fabricated. Results from bench measurements and their comparison with design values are presented. The detailed analysis on the fabrication error which may cause the discrepancy between the RF measurements and simulations is also discussed.
description: 16 pages, 28 figures. arXiv admin note: substantial text overlap with arXiv:2008.09203
Discovery of Strecker-type α-aminonitriles as a new class of human carbonic anhydrase inhibitors using differential scanning fluorimetry
Creators: name: Krasavin, Mikhail
name: Stavniichuk, Roman
name: Zozulya, Sergey
name: Borysko, Petro
name: Vullo, Daniela
name: Supuran, Claudiu T.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Space Science
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Cancer
subject: Hematology

description: A new type of carbonic anhydrase inhibitors was identified via differential scanning fluorimetry (DSF) screening. The compounds displayed interesting inhibition profile against human carbonic anhydrase isoforms I, II, IX and XII with an obvious selectivity displayed by one compound toward carbonic anhydrase (CA) IX, an established anti-cancer target. A hypothetical mechanism of inhibitory action by the Strecker-type α-aminonitriles has been proposed.
Bassus dimidiator
Creators: name: Samin, Najmeh
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Bassus
Bassus dimidiator

description: Bassus dimidiator (Nees von Esenbeck, 1834)
 Material examined: Province of Kordestan: SANANDAJ, 35°20′N 46°50′E, (1♀ ), summer 2009 .
 Distribution outside Iran: Armenia, Azerbaijan, Belarus, Bulgaria, Canada, China, Czech Republic, Finland, France, Germany, Greece, Hungary, Italy, Kazakhstan, Latvia, Lithuania, Moldova, Netherlands, Poland, Portugal, Russia, Slovakia, Switzerland, Turkey, UK, Ukraine, USA.
description: Published as part of Samin, Najmeh, 2015, A faunistic study on the Braconidae of Iran (Hymenoptera ¡ Ichneumonoidea)., pp. 339-345 in Arquivos Entomolóxicos 13 on page 340, DOI: 10.5281/zenodo.12714944
Mass of the dynamically hot inner stellar halo predicts the ancient accreted stellar mass
Creators: name: Zhu, Ling
name: Pillepich, Annalisa
name: van de Ven, Glenn
name: Leaman, Ryan
name: Hernquist, Lars
name: Nelson, Dylan
name: Pakmor, Ruediger
name: Vogelsberger, Mark
name: Zhang, Le
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Galactic dynamical structures are fossil records of the assembly histories of galaxies. By analyzing the cosmological hydrodynamical simulation TNG50, we find that a dynamical structure that we call the "hot inner stellar halo," defined by stars on dynamically hot orbits with circularity $λ_z < 0.5$ at $3.5\,{\rm kpc}
description: A&A in print, 20 pages
Thiophene-based fluorescent mercury-sensors
Creators: name: Shigemoto, Austin K.
name: Virca, Carolyn N.
name: Underwood, Samuel J.
name: Shetterly, Lauren R.
name: Mccormick, Theresa M.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Computational Biology

description: Coordination chemistry of thiophene rings is poorly understood, despite their common use in organic electronic materials. The absorption and emission responses to transition metal ions of three thiophene-based ligands containing pyridine chelating groups are examined. These ligands, 2-(2′-thienyl)-pyridine (L1), 2,5-bis(2-pyridyl)thiophene (L2), and 2,6-bis(2-thienyl)pyridine (L3), show a ratiometric fluorescence response in the presence of Hg(ClO4)2 with reasonable selectivity against many transition metal ions in acetonitrile. 1H NMR data support S,N chelation of L1 and L2 to the Hg(II) center, while L3 coordinates through cyclometalation via one carbon of thiophene. DFT calculations suggest thiophene coordinates to Hg(II) in a bent geometry. Our results indicate that thiophene could offer selectivity for Hg(II) towards the design of fluorescent sensors.
Bipolar planetary nebulae from common envelope evolution of binary stars
Creators: name: Ondratschek, P. A.
name: Roepke, F. K.
name: Schneider, F. R. N.
name: Fendt, C.
name: Sand, C.
name: Ohlmann, S. T.
name: Pakmor, R.
name: Springel, V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Asymmetric shapes and evidence for binary central stars suggest a common-envelope origin for many bipolar planetary nebulae. The bipolar components of the nebulae are observed to expand faster than the rest and the more slowly expanding material has been associated with the bulk of the envelope ejected during the common-envelope phase of a stellar binary system. Common-envelope evolution in general remains one of the biggest uncertainties in binary star evolution and the origin of the fast outflow has not been explained satisfactorily. We perform three-dimensional magnetohydrodynamic simulations of common-envelope interaction with the moving-mesh code AREPO. Starting from the plunge-in of the companion into the envelope of an asymptotic giant branch star and covering hundreds of orbits of the binary star system, we are able to follow the evolution to complete envelope ejection. We find that magnetic fields are strongly amplified in two consecutive episodes. First, when the companion spirals in the envelope and, second, when it forms a contact binary with the core of the former giant star. In the second episode, a magnetically-driven, high-velocity outflow of gas is launched self-consistently in our simulations. The outflow is bipolar and the gas is additionally collimated by the ejected common envelope. The resulting structure reproduces typical morphologies and velocities observed in young planetary nebulae. We propose that the magnetic driving mechanism is a universal consequence of common envelope interaction responsible for a substantial fraction of observed planetary nebulae. Such a mechanism likely also exists in the common-envelope phase of other binary stars that lead to the formation of Type Ia supernovae, X-ray binaries and gravitational-wave merger events.
description: 9 pages, 11 figures; accepted for publication by A&A
An Authentic Algorithm for Ciphering and Deciphering Called Latin Djokovic
Creators: name: Babuc, Diogen
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: The question that is a motivation of writing is how many devote themselves to discovering something in the world of science where much is discerned and revealed, but at the same time, much is unknown. The insightful elements of this algorithm are the ciphering and deciphering algorithms of Playfair, Caesar, and Vigenere. Only a few of their main properties are taken and modified, with the aim of forming a specific functionality of the algorithm called Latin Djokovic. Specifically, a string is entered as input data. A key k is given, with a random value between the values a and b = a + 3. The obtained value is stored in a variable with the aim of being constant during the run of the algorithm. In correlation to the given key, the string is divided into several groups of substrings, and each substring has a length of k characters. The next step involves encoding each substring from the list of existing substrings. Encoding is performed using the basis of the Caesar algorithm, i.e., shifting with k characters. However, that k is incremented by 1 when moving to the next substring in that list. When the value of k becomes greater than b + 1, it will return to its initial value. The algorithm is executed, following the same procedure, until the last substring in the list is traversed. Using this polyalphabetic method, ciphering and deciphering of strings are achieved. The algorithm also works for a 100-character string. The x character is not used when the number of characters in a substring is incompatible with the expected length. The algorithm is simple to implement, but it is questionable if it works better than the other methods from the point of view of execution time and storage space.
description: Five pages
Morphology of multiple constant height hydraulic fractures versus propagation regime
Creators: name: Dontsov, Egor
Publisher: name: arXiv
Year: 2021
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The purpose of this study is to investigate morphology of simultaneously propagating hydraulic fractures. Simultaneous propagation of hydraulic fractures occurs during stimulation of horizontal wells, and, in particular, several initiation points or perforation intervals along the well are often used to promote the growth of multiple hydraulic fractures at the same time. Numerical simulations demonstrate that there are situations, in which stress interaction between the fractures is minimal and this results in a very similar geometry of each fracture. At the same time, for some other parameters, the stress interaction is very strong, so that the fractures interact with each other and develop complex shapes. By focusing on the constant height hydraulic fractures, it is shown that there is a dimensionless parameter that controls such a behavior. In particular, fractures propagating in the toughness dominated regime lead to complex shapes, while when fluid viscosity dominates the response, then the fractures are more regular and uniform. A series of numerical examples is presented to illustrate the findings.
Fiches d'informations relatives aux sociétés de farandoles de Toulon (Var)
Creators: name: Ca 1970
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Source: http://www.calames.abes.fr/pub/ms/FileId-3413
description: created: ca 1970
The Impact of the New $^{65\!}$As(p,$γ$)$^{66\!}$Se Reaction Rate on the Two-Proton Sequential Capture of $^{64}\!$Ge, Weak GeAs Cycles, and Type-I X-Ray Bursts such as the Clocked Burster GS 1826$-$24
Creators: name: Lam, Yi Hua
name: Liu, Zi Xin
name: Heger, Alexander
name: Lu, Ning
name: Jacobs, Adam Michael
name: Johnston, Zac
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We re-assess $^{65}$As(p,$γ$)$^{66}$Se reaction rates based on a set of proton thresholds of $^{66}$Se, $S_\mathrm{p}$($^{66}$Se), estimated from the experimental mirror nuclear masses, theoretical mirror displacement energies, and full $pf$-model space shell-model calculation. The self-consistent relativistic Hartree-Bogoliubov theory is employed to obtain the mirror displacement energies with much reduced uncertainty, and thus reducing the proton-threshold uncertainty up to 161 keV compared to the AME2020 evaluation. Using the simulation instantiated by the one-dimensional multi-zone hydrodynamic code, KEPLER, that closely reproduces the observed GS 1826$-$24 clocked bursts, the present forward and reverse $^{65}$As(p,$γ$)$^{66}$Se reaction rates based on a selected $S_\mathrm{p}$($^{66}$Se) = 2.469$\pm$0.054 MeV, and the latest $^{22}$Mg($α$,p)$^{25}$Al, $^{56}$Ni(p,$γ$)$^{57}$Cu(p,$γ$)$^{58}$Zn, $^{55}$Ni(p,$γ$)$^{56}$Cu, and $^{64}$Ge(p,$γ$)$^{65}$As reaction rates, we find that though the GeAs cycles is weakly established in the rapid-proton capture process path, the $^{65}$As(p,$γ$)$^{66}$Se reaction still strongly characterizes the burst tail end due to the two-proton sequential capture on $^{64}$Ge, not found by Cyburt et al. (2016) sensitivity study. The $^{65}$As(p,$γ$)$^{66}$Se reaction influences the abundances of nuclei $A$ = 64, 68, 72, 76, and 80 up to a factor of 1.4. The new $S_\mathrm{p}$($^{66}$Se) and the inclusion of the updated $^{22}$Mg($α$,p)$^{25}$Al reaction rate increases the production of $^{12}$C up to a factor of $4.5$ that is not observable and could be the main fuel for superburst. The waiting point status of and two-proton sequential capture on $^{64}$Ge, weak-cycle feature of GeAs at region heavier than $^{64}$Ge, and impact of other possible $S_\mathrm{p}$($^{66}$Se) are also discussed.
description: 25 pages, 19 figures, 3 tables, accepted by The Astrophysical Journal on 10 January 2022
Chorebus (Chorebus) longicornis
Creators: name: Samin, Najmeh
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Chorebus
Chorebus longicornis

description: Chorebus (Chorebus) longicornis (Nees von Esenbeck, 1811)
 Material examined: Province of Semnan: Shahrood, 35°30′N 55°30′E, (2♀♀ ), summer 2007. New record for Iran .
  Distribution outside Iran: Austria, Belgium, Czech Republic, Faeroe Islands, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Netherlands, Poland, Portugal (Madeira Islands), Russia, Spain, Sweden, UK, Ukraine, former Yugoslavia.
description: Published as part of Samin, Najmeh, 2015, A faunistic study on the Braconidae of Iran (Hymenoptera ¡ Ichneumonoidea)., pp. 339-345 in Arquivos Entomolóxicos 13 on page 340, DOI: 10.5281/zenodo.12714944
Shadows in conformally related gravity theories
Creators: name: Pal, Kunal
name: Pal, Kuntal
name: Shaikh, Rajibul
name: Sarkar, Tapobrata
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Null geodesics are invariant under a conformal transformation, and thus it might seem natural to assume that the observables corresponding to the shadow of a space-time are also conformally invariant. Here, we argue instead, that since the Arnowitt-Deser-Misner mass and the active gravitational mass of an asymptotically flat space-time are not, in general, invariant under such conformal transformations, the shadow radius for photon motion in a space-time would be quantitatively different, when viewed from two different conformally related frames, although the expression for the shadow radius is similar. We then use this fact to propose a novel method to constrain the relevant parameters in a gravity theory conformally related to general relativity. As examples of our method, we constrain the parameter space in Brans-Dicke theory, and a class of brane-world gravity models, by using the recent observational data of M$87^{*}$ by the Event Horizon Telescope.
description: 12 Pages, 3 Figures
On some combinatorial sequences associated to invariant theory
Creators: name: Bostan, Alin
name: Tirrell, Jordan
name: Westbury, Bruce W.
name: Zhang, Yi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: Symbolic Computation (cs.SC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We study the enumerative and analytic properties of some sequences constructed using tensor invariant theory. The octant sequences are constructed from the exceptional Lie group $G_2$ and the quadrant sequences from the special linear group $SL(3)$. In each case we show that the corresponding sequences are related by binomial transforms. The first three octant sequences and the first four quadrant sequences are listed in the On-Line Encyclopedia of Integer Sequences (OEIS). These sequences all have interpretations as enumerating two-dimensional lattice walks but for the octant sequences the boundary conditions are unconventional. These sequences are all P-recursive and we give the corresponding recurrence relations. In all cases the associated differential operators are of third order and have the remarkable property that they can be solved to give closed formulae for the ordinary generating functions in terms of classical Gaussian hypergeometric functions. Moreover, we show that the octant sequences and the quadrant sequences are related by the branching rules for the inclusion of $SL(3)$ in $G_2$.
description: arXiv admin note: text overlap with arXiv:1911.10288
Chorebus (Phaenolexis) compressiiventris
Creators: name: Samin, Najmeh
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Chorebus
Chorebus compressiiventris

description: Chorebus (Phaenolexis) compressiiventris (Telenga, 1935)
 Material examined: Province of Zanjan: ABHAR, 36°16′N 49°03′E, (1♂ ), April 2004 .
  Distribution outside Iran: Azerbaijan, Caucasus, Ukraine.
description: Published as part of Samin, Najmeh, 2015, A faunistic study on the Braconidae of Iran (Hymenoptera ¡ Ichneumonoidea)., pp. 339-345 in Arquivos Entomolóxicos 13 on page 340, DOI: 10.5281/zenodo.12714944
Natural and anthropogenic variations in the Po river waters (northern Italy): insights from a multi-isotope approach
Creators: name: Marchina, Chiara
name: Bianchini, Gianluca
name: Knoeller, Kay
name: Natali, Claudio
name: Pennisi, Maddalena
name: Colombani, Nicolò
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Space Science
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Plant Biology

description: Po is the main Italian river and the δ18O and δ2H of its water reveal a similarity between the current meteoric fingerprint and that of the past represented by groundwater. As concerns the hydrochemisty, the Ca–HCO3 facies remained constant over the last 50 year, and only nitrate significantly increased from less than 1 mg/L to more than 10 mg/L in the 1980s, and then attenuated to a value of 9 mg/L. Coherently, δ13CDIC and δ34SSO4  are compatible with the weathering of the lithologies outcropping in the basin, while extremely variable δ15NNO3  indicates contribution from pollutants released by urban, agricultural and zootechnical activities. This suggests that although the origin of the main constituents of the Po river water is geogenic, anthropogenic contributions are locally significant. Noteworthy, the associated aquifers have the same nitrogen isotopic signature of the Po river, but are characterized by significantly higher NO– 3 concentration. This implies that aquifers’ pollution is not ascribed to inflow of current river water, and that the attenuation of the nitrogen load recorded in the river is not occurring in the aquifers, due to their longer water residence time and delayed recovery from anthropogenic contamination.
Drinking Water Contamination in Charlton: Education and Solutions
Creators: name: Gadoury, James
name: Rice, Blake
name: Winship, Tristam
name: Grealis, Jacob
Publisher: name: QUBES Educational Resources
Year: 2025

description: Private well water is used throughout many rural communities in the United States. Because private wells are not monitored as rigorously as public water supplies, it is imperative residents understand the need to test and treat their water regularly. Working with the Town of Charlton, our project goal was to understand and inform residents of the contamination risks in Charlton’s groundwater. Our recommendations include methods for informing residents about testing and cleaning their wells, and the benefits of public water, as well as ideas for future projects to aid the town.
Branches, quivers, and ideals for knot complements
Creators: name: Ekholm, Tobias
name: Gruen, Angus
name: Gukov, Sergei
name: Kucharski, Piotr
name: Park, Sunghyuk
name: Stošić, Marko
name: Sułkowski, Piotr
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Geometric Topology (math.GT)
subject: Quantum Algebra (math.QA)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We generalize the $F_K$ invariant, i.e. $\widehat{Z}$ for the complement of a knot $K$ in the 3-sphere, the knots-quivers correspondence, and $A$-polynomials of knots, and find several interconnections between them. We associate an $F_K$ invariant to any branch of the $A$-polynomial of $K$ and we work out explicit expressions for several simple knots. We show that these $F_K$ invariants can be written in the form of a quiver generating series, in analogy with the knots-quivers correspondence. We discuss various methods to obtain such quiver representations, among others using $R$-matrices. We generalize the quantum $a$-deformed $A$-polynomial to an ideal that contains the recursion relation in the group rank, i.e. in the parameter $a$, and describe its classical limit in terms of the Coulomb branch of a 3d-5d theory. We also provide $t$-deformed versions. Furthermore, we study how the quiver formulation for closed 3-manifolds obtained by surgery leads to the superpotential of 3d $\mathcal{N}=2$ theory $T[M_3]$ and to the data of the associated modular tensor category $\text{MTC} [M_3]$.
description: 99 pages, 13 figures
Dynamics of the order-parameter statistics in the long-range Ising model
Creators: name: Ranabhat, Nishan
name: Collura, Mario
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the relaxation of the local ferromagnetic order in the transverse field quantum Ising chain with power-law decaying interactions $1/r^α$. We prepare the system in the GHZ state and study the time evolution of the probability distribution function (PDF) of the order-parameter within a block of $l$ when quenching the transverse field. The model is known to support long-range order at finite temperature for $α\leq 2.0$ . In this regime, quasi-localized topological magnetic defects are expected to strongly affect the equilibration of the full probability distribution. We highlight different dynamical regimes where gaussification mechanism may be slowed down by confinement and eventually breaks. We further study the PDF dynamics induced by changing the effective dimensionality of the system; we mimic this by quenching the range of the interactions. As a matter of fact, the behavior of the system crucially depends on the value of $α$ governing the unitary evolution.
description: 21 pages, 9 figures Appendix A and Appendix B added, subsection 2.4 added, Appendix D updated
Intraspecific variability of carbon isotope discrimination and its correlation with grain yield in safflower: prospects for selection in a Mediterranean climate
Creators: name: Mihoub, Imane
name: Ghashghaie, Jaleh
name: Badeck, Franz W.
name: Robert, Thierry
name: Lamothe-Sibold, Marlène
name: Aid, Fatiha
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: The goals of the present study were to obtain a first estimate of intraspecific variability of carbon isotope discrimination (Δ) in safflower, a thistle-like herbaceous plant, and to determine the statistical relationship between Δ and grain yield as well as its components in a collection of 45 accessions of different origins. Grain yield and aboveground biomass, harvest index, average grain weight, and Δ (measured on the bulk leaf organic matter) were investigated in experimental field conditions. A large variability was noted for all traits but a principal component analysis (PCA) allowed to identify several homogeneous groups of accessions. Average grain yield per plant varied between 1 and 39 g. Δ varied between 21.3 and 25.2 ‰, i.e. a large variation of 3.9 ‰. In our experiment, the variation of Δ was not significantly related to that of grain yield in the whole accession sample. However, we found contrasting trends for this relation within accession groups. These initial results motivate further experiments to assess more in depth correlation between Δ and yield in safflower and are encouraging regarding the possibility of using Δ as an effective selection index in safflower to obtain genotypes that efficiently consume water. This study also highlighted one accession that combines the two characters required in the Mediterranean regions, i.e. high yield performance and high water-use efficiency.
Magneto-Thermal Instability In Galaxy Clusters I: Theory and Two-Dimensional Simulations
Creators: name: Perrone, Lorenzo M.
name: Latter, Henrik
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Determining the origin of turbulence in galaxy clusters, and quantifying its transport of heat, is an outstanding problem, with implications for our understanding of their thermodynamic history and structure. As the dilute plasma of the intracluster medium (ICM) is magnetized, heat and momentum travel preferentially along magnetic field lines. This anisotropy triggers a class of buoyancy instabilities that destabilize the ICM, and whose turbulent motions can augment or impede heat transport. We focus on the magneto-thermal instability (MTI), which may be active in the periphery of galaxy clusters. We aim to take a fresh look at the problem and construct a general theory that explains the MTI saturation mechanism and provides scalings and estimates for the turbulent kinetic energy, magnetic energy, and heat flux. We simulate MTI turbulence with a Boussinesq code, SNOOPY, which, in contrast to previous work, allows us to perform an extensive sampling of the parameter space. In two dimensions the saturation mechanism involves an inverse cascade carrying kinetic energy from the short MTI injection scales to larger scales, where it is arrested by the stable entropy stratification; at a characteristic "buoyancy scale", the energy is dumped into large-scale g-modes, which subsequently dissipate. Consequently, the entropy stratification sets an upper limit on the size and strength of turbulent eddies. Meanwhile, the MTI conveys a substantial fraction of heat, despite the tangled geometry of the magnetic field. In a companion paper, these results are extended to three-dimensional flows, and compared to real cluster observations.
description: 20 pages, 19 figures, submitted to MNRAS
From superintegrability to tridiagonal representation of $β$-ensembles
Creators: name: Mironov, A.
name: Morozov, A.
name: Popolitov, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The wonderful formulas by I.Dumitriu and A.Edelman rewrite $β$-ensemble, with eigenvalue integrals containing Vandermonde factors in the power $2β$, through integrals over tridiagonal matrices, where $β$-dependent are the powers of individual matrix elements, not their differences. These potentially useful formulas are usually deduced from rather complicated and non-transparent combinatorics and are not as widely known as they deserve. We explain that the superintegrability property, i.e. a simple expression of the Gaussian averages of arbitrary Jack polynomials through the same Jack polynomials, is immediately consistent with this tridiagonal representation, which may serve as a clue to its simple and transparent interpretation. For a formal non-perturbative proof, we use the Virasoro constraints, which themselves acquire an interesting structure in the tridiagonal realization. We also attract attention to the surprising spontaneous breakdown of discrete invariance by the tridiagonal measure, which may signal a new interesting anomaly at the elementary level of the basic eigenvalue matrix model.
description: 15 pages
Quantum oscillations in interaction-driven insulators
Creators: name: Allocca, Andrew A.
name: Cooper, Nigel R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In recent years it has become understood that quantum oscillations of the magnetization as a function of magnetic field, long recognized as phenomena intrinsic to metals, can also manifest in insulating systems. Theory has shown that in certain simple band insulators, quantum oscillations can appear with a frequency set by the area traced by the minimum gap in momentum space, and are suppressed for weak fields by an intrinsic "Dingle damping" factor reflecting the size of the bandgap. Here we examine quantum oscillations of the magnetization in excitonic and Kondo insulators, for which interactions play a crucial role. In models of these systems, self-consistent parameters themselves oscillate with changing magnetic field, generating additional contributions to quantum oscillations. In the low-temperature, weak-field regime, we find that the lowest harmonic of quantum oscillations of the magnetization are unaffected, so that the zero-field bandgap can still be extracted by measuring the Dingle damping factor of this harmonic. However, these contributions dominate quantum oscillations at all higher harmonics, thereby providing a route to measure this interaction effect.
description: 14+6 pages, 2 figures; Incorporated peer review feedback
Chorebus (Phaenolexis) gedanensis
Creators: name: Samin, Najmeh
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Chorebus
Chorebus gedanensis

description: Chorebus (Phaenolexis) gedanensis (Ratzeburg, 1852)
 Material examined: Province of Qazvin: Qazvin, 36°26′N 49°49′E, (2 ♂♂, 1 ♀ ), October 2007. New record for Iran .
 Distribution outside Iran: Bulgaria, Germany, Italy, Kazakhstan, Netherlands, Poland, Russia, Sweden, UK.
description: Published as part of Samin, Najmeh, 2015, A faunistic study on the Braconidae of Iran (Hymenoptera ¡ Ichneumonoidea)., pp. 339-345 in Arquivos Entomolóxicos 13 on page 341, DOI: 10.5281/zenodo.12714944
Magneto-Thermal Instability In Galaxy Clusters II: Three-Dimensional Simulations
Creators: name: Perrone, Lorenzo M.
name: Latter, Henrik
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In the intracluster medium (ICM) of galaxies, exchanges of heat across magnetic field lines are strongly suppressed. This anisotropic heat conduction, in the presence of a large-scale temperature gradient, destabilizes the outskirts of galaxy clusters via the magneto-thermal instability (MTI), and thus supplies a source of observed ICM turbulence. In this paper we continue our investigation of the MTI with 3D simulations using the Boussinesq code SNOOPY. We redress two issues intrinsic to our previous 2D study: an inverse energy cascade and the impossibility of dynamo action. Contrary to 2D simulations, we find inconsequential transport of energy across scales (most energy is dissipated at the same scale as its injection), and that turbulent eddies are vertically elongated at or below the thermal conduction length, but relatively isotropic on larger scales. Similar to 2D, however, the saturated turbulent energy levels and the integral scale follow clear power-laws that depend on the thermal diffusivity, temperature gradient, and buoyancy frequency. We also show that the MTI amplifies magnetic fields, through a fluctuation dynamo, to equipartition strengths provided that the integral scale of MTI turbulence is larger than the viscous dissipation scale. Finally, we show that our scaling laws are consistent with extant observations of ICM turbulence if the thermal conductivity is reduced by a factor of $\sim 10$ from its Spitzer value, and that on global cluster scales the stable stratification significantly reduces the vertical elongation of MTI motions.
description: 21 pages, 21 figure, submitted to MNRAS
Collaborate to Adapt: Source-Free Graph Domain Adaptation via Bi-directional Adaptation
Creators: name: Zhang, Zhen
name: Liu, Meihan
name: Wang, Anhui
name: Chen, Hongyang
name: Li, Zhao
name: Bu, Jiajun
name: He, Bingsheng
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Unsupervised Graph Domain Adaptation (UGDA) has emerged as a practical solution to transfer knowledge from a label-rich source graph to a completely unlabelled target graph. However, most methods require a labelled source graph to provide supervision signals, which might not be accessible in the real-world settings due to regulations and privacy concerns. In this paper, we explore the scenario of source-free unsupervised graph domain adaptation, which tries to address the domain adaptation problem without accessing the labelled source graph. Specifically, we present a novel paradigm called GraphCTA, which performs model adaptation and graph adaptation collaboratively through a series of procedures: (1) conduct model adaptation based on node's neighborhood predictions in target graph considering both local and global information; (2) perform graph adaptation by updating graph structure and node attributes via neighborhood contrastive learning; and (3) the updated graph serves as an input to facilitate the subsequent iteration of model adaptation, thereby establishing a collaborative loop between model adaptation and graph adaptation. Comprehensive experiments are conducted on various public datasets. The experimental results demonstrate that our proposed model outperforms recent source-free baselines by large margins.
description: Accepted by WWW-2024
Effects of counter-rotating-wave terms on the noisy frequency estimation
Creators: name: Zhang, Ze-Zhou
name: Wu, Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the problem of estimating the tunneling frequency of a two-level atomic system embedded in a dissipative environment by employing a numerically rigorous hierarchical equations of motion method. The effect of counter-rotating-wave terms on the attainable precision of the noisy quantum metrology is systematically studied beyond the usual framework of perturbative treatments. We find the counter-rotating-wave terms are able to boost the noisy quantum metrological performance in the intermediate and strong coupling regimes, whether the dissipative environment is composed of bosons or fermions. The result presented in this paper may pave a guideline to design a high-precision quantum estimation scenario under practical decoherence.
description: The manuscript has been accepted by Physical Review A
A new cytotoxic diterpenoid glycoside from the leaves of Blumea lacera and its effects on apoptosis and cell cycle
Creators: name: Raushanara Akter
name: Shaikh J. Uddin
name: Tiralongo, Joe
name: I. Darren Grice
name: Tiralongo, Evelin
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: A new diterpenoid glycoside, 6E,10E,14Z-(3S)-17-hydroxygeranyllinalool-17-O-β-d-glucopyranosyl-(1 → 2)-[α-l-rhamnopyranosyl-(1 → 6)]-β-d-glucopyranoside (1) together with the known diterpenoid glycoside (2) and two known flavonoid glycosides (3, 4) were isolated from the methanol extract of Blumea lacera leaves. The structures were determined by the interpretation of their spectroscopic data and comparison with the literature. All compounds were isolated for the first time from B. lacera and evaluated for their cytotoxic activity. Only the new compound (1) showed strong cytotoxic activity with the lowest IC50 value (8.3 μM) being displayed against MCF-7 breast cancer cells. In apoptosis and cell cycle analysis, 1 revealed strong apoptotic activity against MCF-7 cells (45.5% AV+/PI−) after 24 h, but showed no arresting of any of the cell cycle phases in MCF-7.
Multivariate statistical analysis of hydrogeochemical data towards understanding groundwater flow systems in granites
Creators: name: A. P. Matos
name: C. Alves
Publisher: name: Geological Society of London
Year: 2016
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Sample point coordinates, data results of physical–chemical parameters and elements, statistical data results of physical–chemical parameters and elements, and isotope data
5D and 6D SCFTs from $\mathbb{C}^3$ orbifolds
Creators: name: Tian, Jiahua
name: Wang, Yi-Nan
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the orbifold singularities $X=\mathbb{C}^3/Γ$ where $Γ$ is a finite subgroup of $SU(3)$. M-theory on this orbifold singularity gives rise to a 5d SCFT, which is investigated with two methods. The first approach is via 3d McKay correspondence which relates the group theoretic data of $Γ$ to the physical properties of the 5d SCFT. In particular, the 1-form symmetry of the 5d SCFT is read off from the McKay quiver of $Γ$ in an elegant way. The second method is to explicitly resolve the singularity $X$ and study the Coulomb branch information of the 5d SCFT, which is applied to toric, non-toric hypersurface and complete intersection cases. Many new theories are constructed, either with or without an IR quiver gauge theory description. We find that many resolved Calabi-Yau threefolds, $\widetilde{X}$, contain compact exceptional divisors that are singular by themselves. Moreover, for certain cases of $Γ$, the orbifold singularity $\mathbb{C}^3/Γ$ can be embedded in an elliptic model and gives rise to a 6d (1,0) SCFT in the F-theory construction. Such 6d theory is naturally related to the 5d SCFT defined on the same singularity. We find examples of rank-1 6d SCFTs without a gauge group, which are potentially different from the rank-1 E-string theory.
description: 51 pages+appendices and references
Eubazus (Brachistes) tibialis
Creators: name: Samin, Najmeh
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Eubazus
Eubazus tibialis

description: Eubazus (Brachistes) tibialis (Haliday, 1835)
 Material examined: Province of Semnan: DAmgHAN, 35°30′N 54°20′E, (2 ♂♂ ), spring 2000 .
 Distribution outside Iran: Belgium, Bulgaria, Croatia, Finland, France, Germany, Hungary, Ireland, Italy, Latvia, Lithuania, Moldova, Netherlands, Norway, Poland, Russia, Serbia, Slovakia, Sweden, Switzerland, UK, Ukraine.
description: Published as part of Samin, Najmeh, 2015, A faunistic study on the Braconidae of Iran (Hymenoptera ¡ Ichneumonoidea)., pp. 339-345 in Arquivos Entomolóxicos 13 on page 341, DOI: 10.5281/zenodo.12714944
Transverse momentum distributions in low-mass Drell-Yan lepton pair production at NNLO QCD
Creators: name: Gauld, R.
name: Ridder, A. Gehrmann-De
name: Gehrmann, T.
name: Glover, E. W. N.
name: Huss, A.
name: Majer, I.
name: Garcia, A. Rodriguez
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The production of lepton pairs at low invariant mass and finite transverse momentum resolves QCD dynamics at the boundary between the perturbative and non-perturbative domains. We investigate the impact of NNLO QCD corrections on these observables at energies corresponding to the BNL RHIC collider and to fixed-target experiments. Satisfactory perturbative convergence is observed in both cases. Only the collider data are found to be well-described by perturbative QCD, thus indicating the importance of non-perturbative effects in lepton-pair transverse momentum distributions at fixed target energies.
description: v3: Minor corrections in text and figure captions, updated citations; matches published version in PLB
A Classically Efficient Quantum Scalable Fermi-Hubbard Benchmark
Creators: name: Gard, Bryan T.
name: Meier, Adam M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In order to quantify the relative performance of different testbed quantum computing devices, it is useful to benchmark them using a common protocol. While some benchmarks rely on the performance of random circuits and are generic in nature, here we instead propose and implement a practical, application-based benchmark. In particular, our protocol calculates the energy of the ground state in the single particle subspace of a 1-D Fermi Hubbard model, a problem which is efficient to solve classically. We provide a quantum ansatz for the problem that is provably able to probe the full single particle subspace for a general length 1-D chain and scales efficiently in number of gates and measurements. Finally, we demonstrate and analyze the benchmark performance on superconducting and ion trap testbed hardware from three hardware vendors and with up to 24 qubits.
description: 11 pages, 9 figures, Combined Appendix