cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Precessing planetary magnetospheres in SiO stars ? First detection of quasi-periodic polarization fluctuations in R Leo and V Cam
Creators: name: Wiesemeyer, Helmut W.
name: Thum, Clemens
name: Baudry, Alain
name: Herpin, Fabrice
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The origin of magnetism around AGB stars is uncertain. If these stars drive a dynamo, it cannot be sufficient to generate a strong global field, otherwise the observed X-ray luminosities would be higher. Other explanations for the circular polarization of SiO masers in the atmospheres are needed. The interaction of the AGB wind with previously ejected matter and with planets bears complex magneto-hydrodynamic phenomena on a short time scale, such that strong magnetic fields can be maintained locally. Here we provide observational evidence for the corresponding magnetic fluctuations. We trace magnetic activity with the circular polarization of the v=1, J=2-1 SiO masers, using a correlation polarimeter. In V Cam and R Leo, we find evidence of pseudo-periodic fluctuations of the circular polarization on a timescale of a few hours, from which we infer magnetic fluctuations of ~1G. The phenomenon is rare and restricted to a narrow range of velocities. It seems to be associated with planetary wake flows suggested by VLBI maps. While scenarios involving magnetic activity in the extended stellar atmosphere have problems to explain all observed features, precessing Jovian magnetospheres predict all of them. For the case of R Leo, we constrain the orbit of the planet (estimated period 5.2 years) and estimate a stellar mass of 0.7 solar masses.
Triclistus spiracularis THOMSON 1887
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Triclistus
Triclistus spiracularis

description: Triclistus spiracularis THOMSON, 1887
M a t e r i a l e x a m i n e d: Trap4: 1♀ 13-27.vii.; trap 12: 1♀ 15-29.vi.
D i s t r i b u t i o n: Transpalaearctic, new record for Georgia and the Caucasus region.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 114, DOI: 10.5281/zenodo.10415120
ТЕОРЕТИЧЕСКИЕ ОСНОВЫ РАЗВИТИЯ ГРАММАТИЧЕСКОЙ КОМПЕТЕНЦИИ В ПРОЦЕССЕ САМООБРАЗОВАНИЯ
Creators: name: Неъматова, Дурдонахон
name: Рашидов, А.К.
Publisher: name: Zenodo
Year: 2023

description: Грамматическая компетенция является важным аспектом овладения иностранным языком, и самообразование представляет собой эффективный метод развития этой компетенции. Данная статья исследует теоретические основы развития грамматической компетенции в процессе самообразования. В статье рассматриваются ключевые аспекты грамматической компетенции, такие как знание грамматических правил, умение применять их в практике и способы ее развития через самообразование. Она также предоставляет обзор современных исследований и литературы, связанных с развитием грамматической компетенции через самообразование.
Enicospilus adustus
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Enicospilus
Enicospilus adustus

description: Enicospilus adustus (HALLER, 1885)
M a t e r i a l e x a m i n e d: Trap4: 1♀ 24.viii.-7.ix.
D i s t r i b u t i o n: Western Palaearctic, new record for Georgia and the Caucasus region.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 114, DOI: 10.5281/zenodo.10415120
Verifying Time Complexity of Binary Search using Dafny
Creators: name: Morshtein, Shiri
name: Ettinger, Ran
name: Tyszberowicz, Shmuel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences
subject: D.2.4

description: Formal software verification techniques are widely used to specify and prove the functional correctness of programs. However, nonfunctional properties such as time complexity are usually carried out with pen and paper. Inefficient code in terms of time complexity may cause massive performance problems in large-scale complex systems. We present a proof of concept for using the Dafny verification tool to specify and verify the worst-case time complexity of binary search. This approach can also be used for academic purposes as a new way to teach algorithms and complexity.
description: In Proceedings F-IDE 2021, arXiv:2108.02369
Explaining Counterexamples with Giant-Step Assertion Checking
Creators: name: Becker, Benedikt
name: Lourenço, Cláudio Belo
name: Marché, Claude
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Identifying the cause of a proof failure during deductive verification of programs is hard: it may be due to an incorrectness in the program, an incompleteness in the program annotations, or an incompleteness of the prover. The changes needed to resolve a proof failure depend on its category, but the prover cannot provide any help on the categorisation. When using an SMT solver to discharge a proof obligation, that solver can propose a model from a failed attempt, from which a possible counterexample can be derived. But the counterexample may be invalid, in which case it may add more confusion than help. To check the validity of a counterexample and to categorise the proof failure, we propose the comparison between the run-time assertion-checking (RAC) executions under two different semantics, using the counterexample as an oracle. The first RAC execution follows the normal program semantics, and a violation of a program annotation indicates an incorrectness in the program. The second RAC execution follows a novel "giant-step" semantics that does not execute loops nor function calls but instead retrieves return values and values of modified variables from the oracle. A violation of the program annotations only observed under giant-step execution characterises an incompleteness of the program annotations. We implemented this approach in the Why3 platform for deductive program verification and evaluated it using examples from prior literature.
description: In Proceedings F-IDE 2021, arXiv:2108.02369
Gamma-ray emission of relativistic jets as a supercritical process
Creators: name: Stern, Boris E.
name: Poutanen, Juri
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Supercriticality of the same kind as that in a nuclear pile can take place in high-energy astrophysical objects producing a number of impressive effects. For example, it could cause an explosive release of the energy of a cloud of ultrarelativistic protons into radiation. More certainly, supercriticality should be responsible for energy dissipation of very energetic relativistic fluids such as ultrarelativistic shocks in gamma-ray bursts and jets in active galactic nuclei (AGNs). In this case, the photon breeding process operates. It is a kind of the converter mechanism with the high-energy photons and e^+ e^- pairs converting into each other via pair production and inverse Compton scattering. Under certain conditions, which should be satisfied in powerful AGNs, the photon breeding mechanism becomes supercritical: the high-energy photons breed exponentially until their feedback on the fluid changes its velocity pattern. Then the system comes to a self-adjusting near-critical steady state. Monte-Carlo simulations with the detailed treatment of particle propagation and interactions demonstrate that a jet with the Lorentz factor Gamma ~ 20 can radiate away up to a half of its total energy and for Gamma=40 the radiation efficiency can be up to 80 per cent. Outer layers of the jet decelerate down to a moderate Lorentz factor 2-4, while the spine of the jet has the final Lorentz factor in the range 10-20 independently on the initial Gamma. Such sharp deceleration under the impact of radiation must cause a number of interesting phenomena such as formation of internal shocks and an early generation of turbulence.
description: 4 pages, 4 figures, to appear in the proceedings of the HEPRO conference, September 24-28, 2007, Dublin, Ireland
Enicospilus combustus
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Enicospilus
Enicospilus combustus

description: Enicospilus combustus (GRAVENHORST, 1829)
M a t e r i a l e x a m i n e d: Trap 4: 1♀ 5♁♁ 13-27.vii., 3♀♀ 27.vii.-10.viii., 1♀ 10-24.viii., 2♀♀ 24.viii.-7.ix., 3♀♀ 7-21.ix., 2♀♀ 21.ix.-5.x.; trap 7: 2♁♁ 13-27.vii.
D i s t r i b u t i o n: Transpalaearctic and Oriental, new record for Georgia and the Caucasus region.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 115, DOI: 10.5281/zenodo.10415120
The Integrability of New Two-Component KdV Equation
Creators: name: Popowicz, Ziemowit
Publisher: name: arXiv
Year: 2009
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We consider the bi-Hamiltonian representation of the two-component coupled KdV equations discovered by Drinfel'd and Sokolov and rediscovered by Sakovich and Foursov. Connection of this equation with the supersymmetric Kadomtsev-Petviashvilli-Radul-Manin hierarchy is presented. For this new supersymmetric equation the Lax representation and odd Hamiltonian structure is given.
Global Insights Into Lysine Acylomes Reveal Crosstalk Between Lysine Acetylation and Succinylation in Streptomyces
Creators: name: Zhang, Hong
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 310102
subject: Cell development, proliferation and death
classificationCode: 310106
subject: Enzymes
classificationCode: 310103
subject: Cell metabolism
classificationCode: 310109
subject: Proteomics and intermolecular interactions (excl. medical proteomics)
classificationCode: 310206
subject: Sequence analysis
classificationCode: 310205
subject: Proteomics and metabolomics
classificationCode: 310704
subject: Microbial genetics
classificationCode: 310703
subject: Microbial ecology

description: Lysine acylations are reversible and ubiquitous post-translational modifications that play critical roles in regulating multiple cellular processes. In the current study, highly abundant and dynamic acetylation, besides succinylation, was uncovered in a soil bacterium, Streptomyces coelicolor. By affinity enrichment using anti–acetyl-lysine antibody and the following LC−MS/MS analysis, a total of 1298 acetylation sites among 601 proteins were identified. Bioinformatics analyses suggested that these acetylated proteins have diverse subcellular localization and were enriched in a wide range of biological functions. Specifically, a majority of the acetylated proteins were also succinylated in the tricarboxylic acid cycle and protein translation pathways, and the bimodification occurred at the same sites in some proteins. The acetylation and succinylation sites were quantified by knocking out either the deacetylase ScCobB1 or the desuccinylase ScCobB2, demonstrating a possible competitive relationship between the two acylations. Moreover, in vitro experiments using synthetically modified peptides confirmed the regulatory crosstalk between the two sirtuins, which may be involved in the collaborative regulation of cell physiology. Collectively, these results provided global insights into the S. coelicolor acylomes and laid a foundation for characterizing the regulatory roles of the crosstalk between lysine acetylation and succinylation in the future.
Deductive Verification via the Debug Adapter Protocol
Creators: name: Ernst, Gidon
name: Blau, Johannes
name: Murray, Toby
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We propose a conceptual integration of deductive program verification into existing user interfaces for software debugging. This integration is well-represented in the "Debug Adapter Protocol", a widely-used and generic technology to integrate debugging of programs into development environments. Commands like step-forward and step-in are backed by steps of a symbolic structural operational semantics, and the different paths through a program are readily represented by multiple running threads of the debug target inside the user interface. Thus, existing IDEs can be leveraged for deductive verification debugging with relatively little effort. We have implemented this scheme for SecC, an auto-active program verifier for C, and discuss its integration into Visual Studio Code.
description: In Proceedings F-IDE 2021, arXiv:2108.02369
Your Journey Towards Open Science
Creators: name: Stall, Shelley
Publisher: name: Zenodo
Year: 2021

description: This keynote presentation was given during the "X Workshop of Graduation on Computer Engineering of Escola Politécnica da Universidade de São Paulo” (https://pcs.usp.br/wpgec/) held at the Escola
 Politécnica da Universidade de São Paulo (EPUSP) on November 18th (2021) in São Paulo - Brazil. The event and presentations were remote.
 The main objective of this workshop is to promote the research in Brazil related to Computer Engineering.
The role of mergers and gas accretion in black hole growth and galaxy evolution
Creators: name: Zhang, TianChi
name: Guo, Qi
name: Qu, Yan
name: Gao, Liang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use a semi-analytic galaxy formation model to study the co-evolution of supermassive black holes (SMBHs) with their host galaxies. Although the coalescence of SMBHs is not important, the quasar-mode accretion induced by mergers plays a dominant role in the growth of SMBHs. Mergers play a more important role in the growth of SMBH host galaxies than in the SMBH growth. It is the combined contribution from quasar mode accretion and mergers to the SMBH growth and the combined contribution from starburst and mergers to their host galaxy growth that determine the observed scaling relation between the SMBH masses and their host galaxy masses. We also find that mergers are more important in the growth of SMBH host galaxies compared to normal galaxies which share the same stellar mass range as the SMBH host galaxies.
description: 10 pages, 5 figures, version published by RAA
How the Analyzer can Help the User Help the Analyzer
Creators: name: Moy, Yannick
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Human-Computer Interaction (cs.HC)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The automation offered by modern program proof tools goes hand in hand with the capability to interact with the tool when the verification fails. The SPARK proof tool tries to help the user by providing the right information, so that the user can help the tool complete the proof. In this article, we present these mechanisms and how they work concretely on a simple running example.
description: In Proceedings F-IDE 2021, arXiv:2108.02369
Eye-Tracking-Based Design of Mixed Reality Learning Environments in STEM
Creators: name: Sonntag, Dörte
name: Bodensiek, Oliver
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: With the advent of commercially available Mixed-Reality(MR)-headsets in recent years MR-assisted learning started to play a vital role in educational research, especially related to STEM (science, technology, engineering and mathematics) education. Along with these developments it seems viable to further frameworks and structured design processes for MR-based learning environments. Instead of a widely applicable framework for designing educational MR applications, we here consider the case of virtually enhancing physical hands-on experiments in STEM, where students are given a certain problem to solve, and how to design these. For this focused realm, we suggest an empirically driven problemand user-centred design process for MR applications to get novices to act more like experts and exemplify it for a specific experiment and problem set containing a non-trivial electric circuit with capacitors and coils.
description: 15th International Technology, Education and Development Conference
Setting up and using QGIS for geomorphological exercises
Creators: name: Jansson, Peter
Publisher: name: Stockholm University
Year: 2021
Subjects: subject: 40301 Basin Analysis
subject: FOS: Earth and related environmental sciences
subject: 40104 Climate Change Processes
subject: 49999 Earth Sciences not elsewhere classified
subject: 50203 Environmental Education and Extension
subject: Environmental Science
subject: 50299 Environmental Science and Management not elsewhere classified
subject: 59999 Environmental Sciences not elsewhere classified
subject: 40601 Geomorphology and Regolith and Landscape Evolution
subject: 40602 Glaciology
subject: Hydrology
subject: 50302 Land Capability and Soil Degradation
subject: FOS: Agriculture, forestry and fisheries
subject: 50104 Landscape Ecology
subject: Oceanography
subject: Physical Geography
subject: 40699 Physical Geography and Environmental Geoscience not elsewhere classified
subject: 40606 Quaternary Environments
subject: 40607 Surface Processes

description: A beginner's guide to use QGIS to analyse terrain data for landscape landforms and processes appreciation. This is NOT an introduction to GIS but intended to provide students with the possibility to start using QGIS for specific purposes.
V 3, 18 Nov., 2021 Minor adjustements to the text including the latest changes on the SLU site.

V.2, 5 Oct., 2020: Made changes to accommodate changes on the SLU site and also in the format data is supplied. A tiled data format was introduced without notice in Jan. 2020 on the SLU site. Minor typos have also been corrected
V.1, 3 Nov., 2018: First version
On particle collisions in the gravitational field of the Kerr black hole
Creators: name: Grib, A. A.
name: Pavlov, Yu. V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Scattering of particles in the gravitational field of Kerr black holes is considered. It is shown that scattering energy of particles in the centre of mass system can obtain very large values not only for extremal black holes but also for nonextremal ones existing in Nature. This can be used for explanation of still unresolved problem of the origin of ultrahigh energy cosmic rays observed in Auger experiment. Extraction of energy after the collision is investigated. It is shown that due to the Penrose process the energy of the particle escaping the hole at infinity can be large. Contradictions in the problem of getting high energetic particles escaping the black hole are resolved.
description: LaTeX, 7 pages, 2 figures
Setting up and using QGIS for geomorphological exercises
Creators: name: Jansson, Peter
Publisher: name: Stockholm University
Year: 2020
Subjects: subject: 40301 Basin Analysis
subject: FOS: Earth and related environmental sciences
subject: 40104 Climate Change Processes
subject: 49999 Earth Sciences not elsewhere classified
subject: 50203 Environmental Education and Extension
subject: Environmental Science
subject: 50299 Environmental Science and Management not elsewhere classified
subject: 59999 Environmental Sciences not elsewhere classified
subject: 40601 Geomorphology and Regolith and Landscape Evolution
subject: 40602 Glaciology
subject: Hydrology
subject: 50302 Land Capability and Soil Degradation
subject: FOS: Agriculture, forestry and fisheries
subject: 50104 Landscape Ecology
subject: Oceanography
subject: Physical Geography
subject: 40699 Physical Geography and Environmental Geoscience not elsewhere classified
subject: 40606 Quaternary Environments
subject: 40607 Surface Processes

description: A beginner's guide to use QGIS to analyse terrain data for landscape landforms and processes appreciation. This is NOT an introduction to GIS but intended to provide students with the possibility to start using QGIS for specific purposes.
V.2, 5 Oct., 2020: Made changes to accommodate changes on the SLU site and also in the format data is supplied. A tiled data format was introduced without notice in Jan. 2020 on the SLU site. Minor typos have also been corrected
V.1, 3 Nov., 2018: First version
Photon breeding mechanism in relativistic jets: astrophysical implications
Creators: name: Poutanen, Juri
name: Stern, Boris E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Photon breeding in relativistic jets involves multiplication of high-energy photons propagating from the jet to the external environment and back with the conversion into electron-positron pairs. The exponential growth of the energy density of these photons is a super-critical process powered by the bulk energy of the jet. The efficient deceleration of the jet outer layers creates a structured jet morphology with the fast spine and slow sheath. In initially fast and high-power jets even the spine can be decelerated efficiently leading to very high radiative efficiencies of conversion of the jet bulk energy into radiation. The decelerating, structured jets have angular distribution of radiation significantly broader than that predicted by a simple blob model with a constant Lorentz factor. This reconciles the discrepancy between the high Doppler factors determined by the fits to the spectra of TeV blazars and the low apparent velocities observed at VLBI scales as well as the low jet Lorentz factors required by the observed statistics and luminosity ratio of Fanaroff-Riley I radio galaxies and BL Lac objects. Photon breeding produces a population of high-energy leptons in agreement with the constraints on the electron injection function required by spectral fits of the TeV blazars. Relativistic pairs created outside the jet and emitting gamma-rays by inverse Compton process might explain the relatively high level of the TeV emission from the misaligned jet in the radio galaxies. The mechanism reproduces basic spectral features observed in blazars including the blazar sequence (shift of the spectral peaks towards lower energies with increasing luminosity). The mechanism is very robust and can operate in various environments characterised by the high photon density.
description: 6 pages, 3 figures, to appear in the proceedings of the HEPRO conference, September 24-28, 2007, Dublin, Ireland
Enicospilus ramidulus
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Enicospilus
Enicospilus ramidulus

description: Enicospilus ramidulus (LINNAEUS, 1758)
M a t e r i a l e x a m i n e d: Trap 4: 2♀♀ 24.viii.-7.ix.
D i s t r i b u t i o n: Transpalaearctic, Afrotropical and Oriental, known from Azerbaijan (MEYER 1935), new record for Georgia.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 115, DOI: 10.5281/zenodo.10415120
The Complexity of Enriched Mu-Calculi
Creators: name: Bonatti, Piero A.
name: Lutz, Carsten
name: Murano, Aniello
name: Vardi, Moshe Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences
subject: F.3.1; F.4.1

description: The fully enriched μ-calculus is the extension of the propositional μ-calculus with inverse programs, graded modalities, and nominals. While satisfiability in several expressive fragments of the fully enriched μ-calculus is known to be decidable and ExpTime-complete, it has recently been proved that the full calculus is undecidable. In this paper, we study the fragments of the fully enriched μ-calculus that are obtained by dropping at least one of the additional constructs. We show that, in all fragments obtained in this way, satisfiability is decidable and ExpTime-complete. Thus, we identify a family of decidable logics that are maximal (and incomparable) in expressive power. Our results are obtained by introducing two new automata models, showing that their emptiness problems are ExpTime-complete, and then reducing satisfiability in the relevant logics to these problems. The automata models we introduce are two-way graded alternating parity automata over infinite trees (2GAPTs) and fully enriched automata (FEAs) over infinite forests. The former are a common generalization of two incomparable automata models from the literature. The latter extend alternating automata in a similar way as the fully enriched μ-calculus extends the standard μ-calculus.
description: A preliminary version of this paper appears in the Proceedings of the 33rd International Colloquium on Automata, Languages and Programming (ICALP), 2006. This paper has been selected for a special issue in LMCS
Long-lasting accretion-powered chemical heating of millisecond pulsars
Creators: name: Kantor, Elena M.
name: Gusakov, Mikhail E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We analyze the effect of magnetic field in superconducting neutron-star cores on the chemical heating of millisecond pulsars (MSPs). We argue that the magnetic field destroys proton superconductivity in some volume fraction of the stellar core, thus allowing for unsuppressed non-equilibrium reactions of particle mutual transformations there. The reactions transform the chemical energy, accumulated by a neutron star core during the low-mass X-ray binary stage, into heat. This heating may keep an NS warm at the MSP stage (with the surface temperature $\sim 10^5\,\rm K$) for more than a billion of years after ceasing of accretion, without appealing to the rotochemical heating mechanism.
description: 11 pages, 9 figures, accepted for publication in MNRAS
Imprints of dark energy on cosmic structure formation: II) Non-Universality of the halo mass function
Creators: name: Courtin, J.
name: Rasera, Y.
name: Alimi, J. -M.
name: Corasaniti, P. -S.
name: Boucher, V.
name: Fuzfa, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The universality of the halo mass function is investigated in the context of dark energy cosmologies. This widely used approximation assumes that the mass function can be expressed as a function of the matter density omega_m and the rms linear density fluctuation sigma only, with no explicit dependence on the properties of dark energy or redshift. In order to test this hypothesis we run a series of 15 high-resolution N-body simulations for different cosmological models. These consists of three LCDM cosmologies best fitting WMAP-1, 3 and 5 years data, and three toy-models characterized by a Ratra-Peebles quintessence potential with different slopes and amounts of dark energy density. These toy models have very different evolutionary histories at the background and linear level, but share the same sigma8 value. For each of these models we measure the mass function from catalogues of halos identified in the simulations using the Friend-of-Friend (FoF) algorithm. We find redshift dependent deviations from a universal behaviour, well above numerical uncertainties and of non-stochastic origin, which are correlated with the linear growth factor of the investigated cosmologies. Using the spherical collapse as guidance, we show that such deviations are caused by the cosmology dependence of the non-linear collapse and virialization process. For practical applications, we provide a fitting formula of the mass function accurate to 5 percents over the all range of investigated cosmologies. We also derive an empirical relation between the FoF linking parameter and the virial overdensity which can account for most of the deviations from an exact universal behavior. Overall these results suggest that the halo mass function contains unique cosmological information since it carries a fossil record of the past cosmic evolution.
description: 21 pages, 19 figures, 5 tables, published in MNRAS. Paper I: arXiv:0903.5490
Relativistic viscous accretion flow model for ULX sources: A case study for IC 342 X-1
Creators: name: Das, Santabrata
name: Nandi, Anuj
name: Agrawal, Vivek K.
name: Dihingia, Indu Kalpa
name: Majumder, Seshadri
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this letter, we develop a model formalism to study the structure of a relativistic, viscous, optically thin, advective accretion flow around a rotating black hole in presence of radiative coolings. We use this model to examine the physical parameters of the Ultra-luminous X-ray sources (ULXs), namely mass ($M_{\rm BH}$), spin ($a_{\rm k}$) and accretion rate (${\dot m}$), respectively. While doing this, we adopt a recently developed effective potential to mimic the spacetime geometry around the rotating black holes. We solve the governing equations to obtain the shock induced global accretion solutions in terms of ${\dot m}$ and viscosity parameter ($α$). Using shock properties, we compute the Quasi-periodic Oscillation (QPO) frequency ($ν_{\rm QPO}$) of the post-shock matter (equivalently post-shock corona, hereafter PSC) pragmatically, when the shock front exhibits Quasi-periodic variations. We also calculate the luminosity of the entire disc for these shock solutions. Employing our results, we find that the present formalism is potentially promising to account the observed $ν_{\rm QPO}$ and bolometric luminosity ($L_{\rm bol}$) of a well studied ULX source IC 342 X-1. Our findings further imply that the central source of IC 342 X-1 seems to be rapidly rotating and accretes matter at super-Eddington accretion rate provided IC 342 X-1 harbors a massive stellar mass black hole ($M_{\rm BH} < 100 M_\odot$) as indicated by the previous studies.
description: 6 pages, 4 figures, Accepted for publication in MNRAS
title: ÐÐ± ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐµ Ð½Ð° ÑÑÑÑÐºÐ¾Ð¼ ÑÐ·ÑÐºÐµ. Ð ÑÑÑÐºÐ¸Ð¹ ÑÐ·ÑÐº ÐºÐ°Ðº Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½ÑÐ¹ Ð² ÑÑÐµÐ±Ð½Ð¾-Ð¿ÑÐ¾ÑÐµÑÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð¹ ÑÑÐµÑÐµ
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
Creators: name: Ð¡Ð¼ÐµÐ»ÐºÐ¾Ð²Ð°, ÐÐ½Ð³Ð°
name: Ð¡Ð¾Ð»Ð¾Ð²ÑÐµÐ²Ð°, Ð.Ð.
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2020

description: Ð¦ÐµÐ»Ñ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ñ â Ð¿Ð¾Ð·Ð½Ð°ÐºÐ¾Ð¼Ð¸ÑÑ ÑÑÐ°ÑÐ¸Ñ ÑÑ Ñ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÑÐ¼Ð¸ Ð½Ð°ÑÑÐ½Ð¾Ð³Ð¾ ÑÑÐ¸Ð»Ñ ÑÐµÑÐ¸ Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÑÐµÐºÑÑÐ¾Ð² Ð¿Ð¾ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐµ Ð¸ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²Ð¸ÑÑ Ð¸Ñ Ðº ÑÐ»ÑÑÐ°Ð½Ð¸Ñ Ð¸ ÐºÐ¾Ð½ÑÐ¿ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð»ÐµÐºÑÐ¸Ð¹, ÑÑÐ°ÑÑÐ¸Ñ Ð² Ð´Ð¸Ð°Ð»Ð¾Ð³Ð°Ñ Ñ ÑÐ¾Ð±ÐµÑÐµÐ´Ð½Ð¸ÐºÐ¾Ð¼, ÑÑÐµÐ½Ð¸Ñ ÑÑÐµÐ±Ð½Ð¾-Ð½Ð°ÑÑÐ½Ð¾Ð¹ Ð»Ð¸ÑÐµÑÐ°ÑÑÑÑ Ð¿Ð¾ ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾ÑÑÐ¸ Ð½Ð° ÑÑÑÑÐºÐ¾Ð¼ ÑÐ·ÑÐºÐµ. Ð¡Ð¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ñ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¾ Ð½Ð° ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ðµ Ñ ÑÑÐ°ÑÐ¸Ñ ÑÑ Ð½Ð°Ð²ÑÐºÐ¾Ð² Ð²ÑÐµÑ Ð²Ð¸Ð´Ð¾Ð² ÑÐµÑÐµÐ²Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ (ÑÑÐµÐ½Ð¸Ðµ, Ð¿Ð¸ÑÑÐ¼Ð¾, Ð³Ð¾Ð²Ð¾ÑÐµÐ½Ð¸Ðµ, Ð°ÑÐ´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ), Ñ Ð°ÑÐ°ÐºÑÐµÑÐ½ÑÑ Ð´Ð»Ñ ÑÑÐµÐ±Ð½Ð¾-Ð¿ÑÐ¾ÑÐµÑÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð¹ ÑÑÐµÑÑ Ð¾Ð±ÑÐµÐ½Ð¸Ñ, Ð¸ ÑÐ¼ÐµÐ½Ð¸Ð¹ Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°ÑÑ Ð½Ð°ÑÑÐ½ÑÐ¹ ÑÐµÐºÑÑ Ð² ÑÑÑÐ½Ð¾Ð¹ Ð¸ Ð¿Ð¸ÑÑÐ¼ÐµÐ½Ð½Ð¾Ð¹ ÑÐ¾ÑÐ¼Ð°Ñ . ÐÑÐ¸ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ð¸ ÑÐµÐºÑÑÐ¾Ð² Ð¿Ð¾ÑÐ¾Ð±Ð¸Ñ Ð±ÑÐ»Ð¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ñ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ñ ÑÑÐµÐ±Ð½Ð¸ÐºÐ¾Ð² Ð¸ ÑÑÐµÐ±Ð½ÑÑ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ð¹ Ð¿Ð¾ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÐºÐµ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² ÑÐ¾ÑÑÐ¸Ð¹ÑÐºÐ¸Ñ Ð²ÑÐ·Ð¾Ð², ÑÑÐµÐ±Ð½ÑÐµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ñ Ð¿Ð¾ ÑÑÑÑÐºÐ¾Ð¼Ñ ÑÐ·ÑÐºÑ ÐºÐ°Ðº Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½Ð¾Ð¼Ñ (Ð±Ð°Ð·Ð¾Ð²ÑÐ¹ Ð¸ I ÑÐµÑÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐ¹ ÑÑÐ¾- Ð²ÐµÐ½Ñ), Ð° ÑÐ°ÐºÐ¶Ðµ Ð¸Ð½ÑÐµÑÐ½ÐµÑ-ÑÐµÑÑÑÑÑ. Ð£ÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ Ð¼Ð¾Ð¶ÐµÑ Ð±ÑÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¾ Ð´Ð»Ñ Ð·Ð°Ð½ÑÑÐ¸Ð¹ Ð¿Ð¾ ÑÑÑÑÐºÐ¾Ð¼Ñ ÑÐ·ÑÐºÑ Ñ Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½ÑÐ¼Ð¸ ÑÑÐ°ÑÐ¸Ð¼Ð¸ÑÑ Ð½Ð° ÑÑÐ°Ð¿Ðµ Ð¿ÑÐµÐ´Ð²ÑÐ·Ð¾Ð²ÑÐºÐ¾Ð¹ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ Ð² Ð³ÑÑÐ¿Ð¿Ð°Ñ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿ÑÐ¾ÑÐ¸Ð»Ñ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ, Ð½Ð° ÐºÑÑÑÐ°Ñ ÑÑÑÑÐºÐ¾Ð³Ð¾ ÑÐ·ÑÐºÐ° Ð¸ Ð´ÑÑÐ³Ð¸Ñ ÑÐ¾ÑÐ¼Ð°Ñ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾Ð´ ÑÑÐºÐ¾Ð²Ð¾Ð´ÑÑÐ²Ð¾Ð¼ Ð¿ÑÐµÐ¿Ð¾Ð´Ð°Ð²Ð°ÑÐµÐ»Ñ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð´Ð»Ñ ÑÐ°Ð¼Ð¾ÑÑÐ¾ÑÑÐµÐ»ÑÐ½Ð¾Ð¹ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ ÑÑÐ°ÑÐ¸Ñ ÑÑ. ÐÐ¾ÑÐ¾Ð±Ð¸Ðµ Ð²ÐºÐ»ÑÑÐ°ÐµÑ Ð² ÑÐµÐ±Ñ ÑÑÐµÐ±Ð½ÑÐµ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ñ Ð´Ð»Ñ ÑÑÐ°ÑÐµÐ³Ð¾ÑÑ Ð¸ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ñ Ð´Ð»Ñ Ð¿ÑÐµÐ¿Ð¾Ð´Ð°Ð²Ð°ÑÐµÐ»Ñ. Ð£ÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ ÑÐ°ÑÑÑÐ¸ÑÐ°Ð½Ð¾ Ð½Ð° 160 Ð°ÑÐ´Ð¸ÑÐ¾ÑÐ½ÑÑ ÑÐ°ÑÐ¾Ð² Ð¿Ð¾Ð´ ÑÑÐºÐ¾Ð²Ð¾Ð´ÑÑÐ²Ð¾Ð¼ Ð¿ÑÐµÐ¿Ð¾Ð´Ð°Ð²Ð°ÑÐµÐ»Ñ. Ð£ÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½ÑÑ Ð³ÑÐ°Ð¶Ð´Ð°Ð½, Ð²Ð»Ð°Ð´ÐµÑÑÐ¸Ñ ÑÑÑÑÐºÐ¸Ð¼ ÑÐ·ÑÐºÐ¾Ð¼ Ð² Ð¾Ð±ÑÑÐ¼Ðµ Ð±Ð°Ð·Ð¾Ð²Ð¾Ð³Ð¾ ÑÑÐ¾Ð²Ð½Ñ Ð Ð¾ÑÑÐ¸Ð¹ÑÐºÐ¾Ð¹ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐµÑÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½ÑÑ ÑÑÐ¾Ð²Ð½ÐµÐ¹ Ð¾Ð±ÑÐµÐ³Ð¾ Ð²Ð»Ð°Ð´ÐµÐ½Ð¸Ñ ÑÑÑÑÐºÐ¸Ð¼ ÑÐ·ÑÐºÐ¾Ð¼ ÐºÐ°Ðº Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½ÑÐ¼ Ð¸ Ð¶ÐµÐ»Ð°ÑÑÐ¸Ñ Ð¿Ð¾Ð»ÑÑÐ¸ÑÑ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ðµ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð½Ð° ÑÑÑÑÐºÐ¾Ð¼ ÑÐ·ÑÐºÐµ.
Overdrawing Urns using Categories of Signed Probabilities
Creators: name: Jacobs, Bart
name: Stein, Dario
Publisher: name: arXiv
Year: 2023
Subjects: subject: Probability (math.PR)
subject: Machine Learning (cs.LG)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: F.4.1 ; F.1.2 ;

description: A basic experiment in probability theory is drawing without replacement from an urn filled with multiple balls of different colours. Clearly, it is physically impossible to overdraw, that is, to draw more balls from the urn than it contains. This paper demonstrates that overdrawing does make sense mathematically, once we allow signed distributions with negative probabilities. A new (conservative) extension of the familiar hypergeometric ('draw-and-delete') distribution is introduced that allows draws of arbitrary sizes, including overdraws. The underlying theory makes use of the dual basis functions of the Bernstein polynomials, which play a prominent role in computer graphics. Negative probabilities are treated systematically in the framework of categorical probability and the central role of datastructures such as multisets and monads is emphasised.
description: In Proceedings ACT 2023, arXiv:2312.08138
title: Norma Ramí­rez - Proyecto Seattle en el Tiempo de COVID-19 - Transcript de Historia Oral
Creators: name: Labor Archives of Washington
Publisher: name: Labor Archives of Washington
Year: 2021

description: ESPAÑOL Entrevista de historia oral con Norma Ramírez, una trabajadora de restaurante. Completado el 25 de mayo de 2021. Esta entrevista es parte del Proyecto de Historia Oral Trabajando en el Tiempo de COVID-19 de los Archivos Laborales de Washington, Universidad de Washington.

Este artículo contiene cuatro partes: el audio de la historia oral (.mp4), la transcripción preliminar en español e inglés (.pdf), y los subtítulos en español e inglés (.srt).

ENGLISH Oral History interview with Norma Ramírez, a restaurant worker. Completed on May 25, 2021. This interview is part of the Working in the Time of COVID-19 Oral History Project by the Labor Archives of Washington, University of Washington Libraries. Laborarchives.org

This item contains four parts: oral history audio file (.mp4), preliminary transcription in Spanish and English (.pdf), and caption tracks in Spanish and English (.srt).
Toward understanding rich superclusters
Creators: name: Einasto, M.
name: Saar, E.
name: Martinez, V. J.
name: Einasto, J.
name: Liivam"agi, L. J.
name: Tago, E.
name: Starck, J. -L.
name: Mueller, V.
name: Hein"am"aki, P.
name: Nurmi, P.
name: Paredes, S.
name: Gramann, M.
name: Huetsi, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a morphological study of the two richest superclusters from the 2dF Galaxy Redshift Survey (SCL126, the Sloan Great Wall, and SCL9, the Sculptor supercluster). We use Minkowski functionals, shapefinders, and galaxy group information to study the substructure of these superclusters as formed by different populations of galaxies. We compare the properties of grouped and isolated galaxies in the core region and in the outskirts of superclusters. The fourth Minkowski functional $V_3$ and the morphological signature $K_1$- $K_2$ show a crossover from low-density morphology (outskirts of supercluster) to high-density morphology (core of supercluster) at mass fraction $m_f \approx 0.7$. The galaxy content and the morphology of the galaxy populations in supercluster cores and outskirts is different. The core regions contain a larger fraction of early type, red galaxies, and richer groups than the outskirts of superclusters. In the core and outskirt regions the fine structure of the two prominent superclusters as delineated by galaxies from different populations also differs. Our results suggest that both local (group/cluster) and global (supercluster) environments are important in forming galaxy morphologies and colors (and determining the star formation activity). The differences between the superclusters indicate that these superclusters have different evolutional histories (Abridged).
description: 23 pages, accepted for publication in The Astrophysical Journal
Estimation of Cosmological Parameters from HI Observations of Post-reionization Epoch
Creators: name: Bharadwaj, Somnath
name: Sethi, Shiv K.
name: Saini, Tarun Deep
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The emission from neutral hydrogen (HI) clouds in the post-reionization era (z < 6), too faint to be individually detected, is present as a diffuse background in all low frequency radio observations below 1420 MHz. The angular and frequency fluctuations of this radiation (~ 1 mK) is an important future probe of the large scale structures in the Universe. We show that such observations are a very effective probe of the background cosmological model and the perturbed Universe. In our study we focus on the possibility of determining the redshift space distortion parameter, coordinate distance and its derivative with redshift. Using reasonable estimates for the observational uncertainties and configurations representative of the ongoing and upcoming radio interferometers, we predict parameter estimation at a precision comparable with supernova Ia observations and galaxy redshift surveys, across a wide range in redshift that is only partially accessed by other probes. Future HI observations of the post-reionization era present a new technique, complementing several existing one, to probe the expansion history and to elucidate the nature of the dark energy.
description: 11 pages, 5 figures
Pseudospin excitations in coaxial nanotubes
Creators: name: Scharf, B.
name: Fabian, J.
name: Matos-Abiague, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In a 2DEG confined to two coaxial tubes the `tube degree of freedom' can be described in terms of pseudospin-1/2 dynamics. The presence of tunneling between the two tubes leads to a collective oscillation known as pseudospin resonance. We employ perturbation theory to examine the dependence of the frequency of this mode with respect to a coaxial magnetic field for the case of small intertube distances. Coulomb interaction leads to a shift of the resonance frequency and to a finite lifetime of the pseudospin excitations. The presence of the coaxial magnetic field gives rise to pronounced peaks in the shift of the resonance frequency. For large magnetic fields this shift vanishes due to the effects of Zeeman splitting. Finally, an expression for the linewidth of the resonance is derived. Numerical analysis of this expression suggests that the linewidth strongly depends on the coaxial magnetic field, which leads to several peaks of the linewidth as well as regions where damping is almost completely suppressed.
description: 11 pages, 7 figures
Ophion callanderi JOHANSSON 2019
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Ophion
Ophion callanderi

description: Ophion callanderi JOHANSSON, 2019
M a t e r i a l e x a m i n e d: 1♀ 27.vii.-10.viii., 1♀ 24.viii.-7.ix., 1♀ 21.ix.-5.x.
D i s t r i b u t i o n: Western Palaearctic, new record for Georgia and the Caucasus region.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 115, DOI: 10.5281/zenodo.10415120
Impacts of pea-canola intercropping and associated management practices on the soil microbiome
Creators: name: Parks, Janice M.
Publisher: name: Washington State University
Year: 2026
Subjects: Intercropping
Microbial communities
Nitrogen
Microbial Ecology
Sustainable Agriculture

description: Intercropping has begun to captivate the interests of agronomists and microbial ecologists alike due to its promise to reduce the environmental impacts of our agricultural systems while maintaining high yields and improving profit margins. Specifically, legume non-legume intercropping systems show exceptional promise due to the unique relationship legumes share with nitrogen fixing bacteria known as rhizobia. The pea-canola (Pisum sativum-Brassica napus) intercropping system (peaola) is one such intercropping system. Consistently, it has been observed to show improved yields from monoculture within the same land area with minimal to no nitrogen fertilizer addition. Agronomists had long hypothesized that plant associated microorganisms were responsible for this observation, but work had not been done to show this. Therefore, the goal of our study was to determine how pea-canola intercropping, and its management practices impact the structure and predicted function of soil and rhizosphere microbial communities. We also aimed to determine if changes to nitrogen availability and uptake were changed with intercropping and across management practices with the potential to link these changes to the microbial community. To do so, we collected soil and rhizosphere samples from field grown peaola which tested the impacts of intercropping, variation in nitrogen fertilizer application, and variation in pea and canola seeding rates. We performed 16S rRNA sequencing to allow for characterization of the microbial community, and we analyzed the soil and leaf nitrogen content. Regardless of intercropping and management practices, we saw that plants ultimately determined the structure of their associated microbial communities, and subsequently their predicted function. Evidence from our analyses of soil and leaf nitrogen content revealed that generally variation in peaola management practices did not cause any significant changes. This is likely due to the plant facilitated changes we observed compensating for changes in nutrient availability based on nitrogen fertilizer application and plant-plant interactions. Future studies on intercropping systems should focus on characterizing changes in plant-plant interactions across management practices in addition to validating and further investigating the function of the microbial community.
Photoluminescence spectroscopy of trions in quantum dots: a theoretical description
Creators: name: Climente, Juan I.
name: Bertoni, Andrea
name: Goldoni, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a full configuration interaction study of the spontaneous recombination of neutral and singly charged excitons (trions) in semiconductor quantum dots, from weak to strong coupling regimes. We find that the enhancement of the recombination rate of neutral excitons with increasing dot size is suppressed for negative trions, and even reversed for positive trions. Our findings agree with recent comprehensive photoluminescence experiments in self-assembled quantum dots [P. Dalgarno et al. Phys. Rev. B {\bf 77}, 245311 (2008)] and confirm the major role played by correlations in the valence band.The effect of the temperature on the photoluminescence spectrum and that of the ratio between the electron and hole wavefunction lengthscales are also described.
description: 8 pages, 8 figures, submitted
Dislocation avalanches from strain-controlled loading: A discrete dislocation dynamics study
Creators: name: Kurunczi-Papp, David
name: Laurson, Lasse
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study strain-controlled plastic deformation of crystalline solids via two-dimensional discrete dislocation dynamics simulations. To this end, we characterize the average stress-strain curves as well as the statistical properties of strain bursts and the related stress drops as a function of the imposed strain rate and the stiffness of the specimen-machine system. The dislocation system exhibits strain rate sensitivity such that a larger imposed strain rate results in a higher average stress at a given strain. In the limit of small strain rate and driving spring stiffness, the sizes and durations of the dislocation avalanches are power-law distributed up to a cutoff scale, and exhibit temporally asymmetric average shapes. We discuss the dependence of the results on the driving parameters, and compare our results to those from previous simulations where quasistatic stress-controlled loading was used.
description: 11 pages, 9 captioned figures