cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Global scale investigation of cirrus clouds properties using active and passive sensors
Creators: name: Veglio, Paolo <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: FIS/06 Fisica per il sistema terra e il mezzo circumterrestre

description: A year of satellite-borne lidar CALIOP data is analyzed and statistics on occurrence and distribution of bulk properties of cirri are provided.
The relationship between environmental and cloud physical parameters and the shape of the backscatter profile (BSP) is investigated. It is found that CALIOP BSP is mainly affected by cloud geometrical thickness while only minor impacts can be attributed to other quantities such as optical depth or temperature. 
To fit mean BSPs as functions of geometrical thickness and position within the cloud layer, polynomial functions are provided. It is demonstrated that, under realistic hypotheses, the mean BSP is linearly proportional to the IWC profile.

The IWC parameterization is included into the RT-RET retrieval algorithm, that is exploited to analyze infrared radiance measurements in presence of cirrus clouds during the ECOWAR field campaign. 
Retrieved microphysical and optical properties of the observed cloud are used as input parameters in a forward RT simulation run over the 100-1100 cm-1 spectral interval and compared with interferometric data to test the ability of the current single scattering properties database of ice crystal to reproduce realistic optical features.

Finally a global scale investigation of cirrus clouds is performed by developing a collocation algorithm that exploits satellite data from multiple sensors (AIRS, CALIOP, MODIS). The resulting data set is utilized to test a new infrared hyperspectral retrieval algorithm. Retrieval products are compared to data and in particular the cloud top height (CTH) product is considered for this purpose. A better agreement of the retrieval with the CALIOP CTH than MODIS is found, even if some cases of underestimation and overestimation are observed.
Non-gaussianity from the trispectrum and vector field perturbations
Creators: name: Valenzuela-Toledo, Cesar A.
name: Rodriguez, Yeinzon
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We use the δN formalism to study the trispectrum T_ζof the primordial curvature perturbation ζwhen the latter is generated by vector field perturbations, considering the tree-level and one-loop contributions. The order of magnitude of the level of non-gaussianity in the trispectrum, τ_{NL}, is calculated in this scenario and related to the order of magnitude of the level of non-gaussianity in the bispectrum, f_{NL}, and the level of statistical anisotropy in the power spectrum, g_ζ. Such consistency relations will put under test this scenario against future observations. Comparison with the expected observational bound on τ_{NL} from WMAP, for generic inflationary models, is done.
description: LaTeX file, 12 pages, no figures. v2: Minor changes, conclusions unchanged. v3: Version accepted for publication in Physics Letters B
Hard-material Adhesion: Which Scales of Roughness Matter?
Creators: name: Thimons, Luke A.
name: Gujrati, Abhijeet
name: Sanner, Antoine
name: Pastewka, Lars
name: Jacobs, Tevis D. B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Surface topography strongly modifies adhesion of hard-material contacts, yet roughness of real surfaces typically exists over many length scales. This investigation aims to determine which scales of topography have the strongest effect on macroscopic adhesion. Adhesion measurements were performed on technology-relevant diamond coatings of varying roughness using spherical ruby probes that are large enough ($0.5$-mm-diameter) to sample all length scales of topography. For each material, more than $2000$ measurements of pull-off force were performed in order to investigate the magnitude and statistical distribution of adhesion. Using sphere-contact models, the roughness-dependent effective values of work of adhesion were measured, ranging from $0.08$ to $7.15$ mJ/m$^2$ across the four surfaces. The data was more accurately fit using numerical analysis, where an interaction potential was integrated over the AFM-measured topography of all contacting surfaces. These calculations revealed that consideration of nanometer-scale plasticity in the materials was crucial for a good quantitative fit of the measurements, and the presence of such plasticity was confirmed with AFM measurements of the probe after testing. This analysis enabled the extraction of geometry-independent material parameters; the intrinsic work of adhesion between ruby and diamond was determined to be $46.3$ mJ/m$^2$. The range of adhesion was $5.6$ nm, which is longer than is typically assumed for atomic interactions, but is in agreement with other recent investigations. Finally, the numerical analysis was repeated for the same surfaces but this time with different length-scales of roughness included or filtered out. The results demonstrate a critical band of length-scales between $43$ nm and $1.8$ nm in lateral size that has the strongest effect on the total adhesive force for these hard, rough contacts.
description: 12 pages, 6 figures
On ambiguous sentences with the particle To
Creators: name: Fujimura, Taiji
Publisher: name: University of British Columbia
Year: 2010

description: This thesis attempts to describe Japanese sentences in which to functions as the symmetric, concomitative, or coordinate particle. Earlier studies by Gkutsu (1967), Kuno (1967-68) and Inoue (1976b) are closely examined. It is assumed that sentences with conjoined HP's like Taroo to Hanako ga kekkon-si-ta are all transformationally derived. In connection with this assumption, the rules of Conjunction Reduction, Issyo ni Insertion, NP Scrambling in NP, Conjunct Movement and Reciprocal Transformation are proposed. It is also argued that the rules should apply in the order given above.
Absence of Embedded Mass Shells: Cerenkov Radiation and Quantum Friction
Creators: name: De Roeck, W.
name: Froehlich, J.
name: Pizzo, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We show that, in a model where a non-relativistic particle is coupled to a quantized relativistic scalar Bose field, the embedded mass shell of the particle dissolves in the continuum when the interaction is turned on, provided the coupling constant is sufficiently small. More precisely, under the assumption that the fiber eigenvectors corresponding to the putative mass shell are differentiable as functions of the total momentum of the system, we show that a mass shell could exist only at a strictly positive distance from the unperturbed embedded mass shell near the boundary of the energy-momentum spectrum.
description: Revised version: a remark added at the end of Section 5
High-Resolution Simulation on Structure Formation with Extremely Light Bosonic Dark Matter
Creators: name: Woo, Tak-Pong
name: Chiueh, Tzihong
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An alternative bosonic dark matter model is examined in detail via high-resolution simulations. These bosons have particle mass of order $10^{-22}eV$ and are non-interacting. If they do exist and can account for structure formation, these bosons must be condensed into the Bose-Einstein state and described by a coherent wave function. This matter, also known as Fuzzy Dark Matter (Hu, Barkana & Gruzinov 2000),, is speculated to be able, first, to eliminate the sub-galactic halos to solve the problem of over-abundance of dwarf galaxies, and, second, to produce flat halo cores in galaxies suggested by some observations. Our simulation results show that although this extremely light bosonic dark matter indeed suppresses low-mass halos, it can, to the contrary of expectation, yield singular halo cores. The density profile of the singular halo is almost identical to the halo profile of Navarro, Frenk & White (1997). Such a profile seems to be universal, in that it can be produced via either accretion or merger.
description: 21 pages, 10 figures
Counter Chemotactic Flow in Quasi-One-Dimensional Path
Creators: name: Fujii, Masashi
name: Awazu, Akinori
name: Nishimori, Hiraku
Publisher: name: arXiv
Year: 2009
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Quasi-one-dimensional bidirectional particle flow including the effect of chemotaxis is investigated through a modification of the John-Schadschneider-Chowdhury-Nishinari model. Specifically, we permit multiple lanes to be shared by both directionally traveling particles. The relation between particle density and flux is studied for several evaporation rates of pheromone, and the following results are obtained: i) in the low-particle-density range, the flux is enlarged by pheromone if the pheromone evaporation rate is sufficiently low, ii) in the high particle-density range, the flux is largest at a reasonably high evaporation rate and, iii) if the evaporation rate is at the level intermediate between the above two cases, the flux is kept small in the entire range of particle densities. The mechanism of these behaviors is investigated by observing the spatial-temporal evolution of particles and the average cluster size in the system.
description: 4 pages, 9 figures
Radio Morphology of Red Geysers
Creators: name: Roy, Namrata
name: Moravec, Emily
name: Bundy, Kevin
name: Hardcastle, Martin J.
name: Gürkan, Gülay
name: Baldi, Ranieri D.
name: Leslie, Sarah K.
name: Masters, Karen
name: Gelfand, Joseph
name: Riffel, Rogerio
name: Riffel, Rogemar A.
name: Mingo, Beatriz
name: Drabent, Alexander
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present 150 MHz, 1.4 GHz, and 3 GHz radio imaging (LoTSS, FIRST and VLASS) and spatially resolved ionized gas characteristics (SDSS IV-MaNGA) for 140 local ($z<0.1$) early-type "red geyser" galaxies. These galaxies have low star formation activity (SFR $\sim \rm 0.01\ M_{\odot} yr^{-1}$), but show unique extended patterns in spatially-resolved emission line maps that have been interpreted as large-scale ionized winds driven by active galactic nuclei (AGN). In this work we confirm that red geysers host low-luminosity radio sources ($\rm L_{1.4GHz} \sim 10^{22} W Hz^{-1}$). Out of 42 radio-detected red geysers, 32 are spatially resolved in LoTSS and FIRST, with radio sizes varying between $\sim 5-25$ kpc. Three sources have radio sizes exceeding 40 kpc. A majority display a compact radio morphology and are consistent with either low-power compact radio sources ("FR0" galaxies) or "radio-quiet quasars". They may be powered by small-scale AGN-driven jets which remain unresolved at the current $5"$ resolution of radio data. The extended radio sources, not belonging to the "compact" morphological class, exhibit steeper spectra with a median spectral index of $-0.67$ indicating the dominance of lobed components. The red geysers hosting extended radio sources also have the lowest specific star formation rates, suggesting they either have a greater impact on the surrounding interstellar medium or are found in more massive halos on average. The degree of alignment of the ionized wind cone and the extended radio features are either 0$^{\circ}$ or 90$^{\circ}$, indicating possible interaction between the interstellar medium and the central radio AGN.
description: 23 pages, 14 figures. Accepted for publication in The Astrophysical Journal
Hypermatrix factors for string and membrane junctions
Creators: name: Fang, Yuhan
name: Levkowitz, Shir
name: Sati, Hisham
name: Thompson, Daniel
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The adjoint representations of the Lie algebras of the classical groups SU(n), SO(n), and Sp(n) are, respectively, tensor, antisymmetric, and symmetric products of two vector spaces, and hence are matrix representations. We consider the analogous products of three vector spaces and study when they appear as summands in Lie algebra decompositions. The Z3-grading of the exceptional Lie algebras provide such summands and provides representations of classical groups on hypermatrices. The main natural application is a formal study of three-junctions of strings and membranes. Generalizations are also considered.
description: 25 pages, 4 figures, presentation improved, minor corrections
Child Sexual Abuse Rampant in Pakistan
Creators: name: Kharal, Sara
Publisher: name: figshare
Year: 2022
Subjects: subject: 111704 Community Child Health
subject: FOS: Health sciences
subject: 220306 Feminist Theory
subject: FOS: Philosophy, ethics and religion
subject: 130308 Gender, Sexuality and Education
subject: FOS: Educational sciences
subject: 200205 Culture, Gender, Sexuality
subject: FOS: Other humanities
subject: 130205 Humanities and Social Sciences Curriculum and Pedagogy (excl. Economics, Business and Management)
subject: 160808 Sociology and Social Studies of Science and Technology
subject: FOS: Sociology
subject: 190399 Journalism and Professional Writing not elsewhere classified
subject: FOS: Media and communications
subject: 190301 Journalism Studies

description: Child sexual abuse in Pakistan is rampant in the homes and streets of Pakistan. More is needed to be done to protect children from harm. The most vulnerable of the society are being harmed by adults around them in various settings like Madrassa's, homes, and the streets.
Mean-field methods in evolutionary duplication-innovation-loss models for the genome-level repertoire of protein domains
Creators: name: Angelini, A.
name: Amato, A.
name: Bianconi, G.
name: Bassetti, B.
name: Lagomarsino, M. Cosentino
Publisher: name: arXiv
Year: 2009
Subjects: subject: Genomics (q-bio.GN)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: We present a combined mean-field and simulation approach to different models describing the dynamics of classes formed by elements that can appear, disappear or copy themselves. These models, related to a paradigm duplication-innovation model known as Chinese Restaurant Process, are devised to reproduce the scaling behavior observed in the genome-wide repertoire of protein domains of all known species. In view of these data, we discuss the qualitative and quantitative differences of the alternative model formulations, focusing in particular on the roles of element loss and of the specificity of empirical domain classes.
description: 10 Figures, 2 Tables
Innovative processes for syngas production
Processi innovativi per la produzione di syngas
Creators: name: Barbera, Davide <1984>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: CHIM/04 Chimica industriale

description: The research of new advanced processes for syngas production is a part of a European project for the production of a new Gas to Liquid Process (NextGTL). The crucial points in the production of GTL process are the energy required for the air separation used in autothermal reforming or the heat required for steam reforming and the efficiency in carbon utilization. Therefore a new multistep oxy-reforming process scheme was developed at lower temperature with intermediate H2 membrane separation to improve the crucial parameter. The process is characterized by a S/C of 0.7 and O2/C of 0.21 having a  smoothed temperature profile in which kinetic regime is easily obtained. Active catalysts for low temperature oxy-reforming process have been studied working at low pressure to discriminate among the catalyst and at high pressure to prove it on industrial condition. It allows the selection of the Rh as active phase among single and bimetallic VIII group metal. The study of the matrix composition and thermal treatment has been carried out on Rh-Mg/Al hydrotalcite selected as reference catalyst. The research to optimize the catalyst lead to enhanced performances through the identification of a limitation of the Rh reduction from the oxides matrix as key point to increase the Rh performances. The Rh loading have been studied to allow the catalyst scale up for pilot process in Chieti in a shape of Rh-HT on honeycomb ceramic material. The developed catalyst has enhanced methane conversion in a inch diameter monolith reactor if compared with the semi-industrial catalyst chosen in the project as the best reference.
Familieindkomststatistik 2013
Creators: Danmarks Statistik
Publisher: name: Rigsarkivet
Year: 2022

description: Hovedformålet med statistikken er at belyse størrelse, sammensætning og fordeling af indkomster for familier med bopæl i Danmark. Statistikken søger at inddrage så mange væsentlige indkomstarter som muligt uden hensyn til, hvordan indkomsterne behandles skattemæssigt.
Pristiceros serrarius
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
Pristiceros
Pristiceros serrarius

description: Pristiceros serrarius (GRAVENHORST, 1829)
M a t e r i a l e x a m i n e d: Trap7:1♁27.vii.-10.viii.
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 97, DOI: 10.5281/zenodo.10415120
Additional file 1 of Chitosan hydrogel-loaded MSC-derived extracellular vesicles promote skin rejuvenation by ameliorating the senescence of dermal fibroblasts
Creators: name: Zhao, Xiangnan
name: Liu, Yue
name: Jia, Pingping
name: Cheng, Hui
name: Wang, Chen
name: Chen, Shang
name: Huang, Haoyan
name: Han, Zhibo
name: Han, Zhong-Chao
name: Marycz, Krzysztof
name: Chen, Xiaoniao
name: Li, Zongjin
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer

description: Additional file 1: Table S1. Primer sequences used in real-time PCR. Figure S1. Bioluminescent labeling of EVs. (A-B) Ex vivo imaging of Gluc-labeled EVs exhibited increasing bioluminescence signals with concentrations of EVs (R2 = 0.9907). Figure S2. DFLs isolation in vitro. (A) The image showed the separation of dermis (left) and epidermis (right) of newborn mice skin after Dispase II treatment. (B) Representative image showed fibroblasts crawled out from the edges of the skin dermal tissue by tissue-block cultivation. Scale bar, 200 μm. Figure S3. Quantitative statistical results of western blots. (A) Quantification of protein levels normalized to tubulin (n = 3; *P < 0.05, **P < 0.01 vs P2). Figure S4. CS-EVs treatment strategy in vivo. Schematic diagram for in vivo study. Figure S5. Features of aging skin and young skin tissue. (A) Representative skin sections of mouse at different ages, H&E and Masson trichrome stain. Scale bar, 50 μm. (B) The statistics of mean dermal or epidermal thickness as well as Collagen ratio at the indicated ages. Data are presented as the Mean ± SEM. (n = 5; **P < 0.01 vs 12 W). Figure S6. Images of the uncropped immunoblots shown in the main figures. Boxes indicate cropped regions.
Climate change and sustainability education framework: an opportunity for pre-service teaching
Creators: name: Johnson, Jo Anna Reed
name: Marston, Sarah
name: Happle, Andrew
name: Majid, Nasreen
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Ecology
subject: FOS: Biological sciences
subject: Science Policy
subject: Plant Biology

description: The National Climate Education Action Plan (NCEAP) included 9-actions. Action 2: develop an initial teacher (pre-service) education framework for embedding climate change and sustainability education responding to needing a climate action pedagogy to address the requirements of UK National Policy and Department for Education policy paper ‘Sustainability and climate change: a strategy for the education and children’s services systems’ (Department for Education, 2022). This paper presents a research project for implementing a framework across three age phases: early years, primary and secondary (2022–23). It explores the development and alignment of teaching to incorporate understanding of climate and su-stainability education enabling climate action. A qualitative approach was employed, drawing on surveys, reflective statements and interviews. Using thematic analysis the reflective statements from 10-teacher educators and a student focus group were analysed along with a student end point survey responses from 79 pre-service teachers. Exploring the extent to which the framework had facilitated the development of pre-service teachers’ understanding about how to teach climate change and sustainability education. The findings suggest that, whilst the sample size was small, there was the potential to embed climate change and sustainability education using a flexible framework, underpinned by thinking related to competencies across different initial teacher education programmes. Further research is needed to explore how this framework is applied and contextualised, and the impact it has in developing self-efficacy and competencies. An exploration of early adopters as part of a Delphi study or survey might help to contribute to this important area of research.
Particle-beam scattering from strong-field QED
Creators: name: Adamo, Tim
name: Ilderton, Anton
name: MacLeod, Alexander J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the scattering of probe particles on an ultra-boosted beam of charge, in the case that the fields of the beam are strong and must be treated non-perturbatively. We show that the fields of the ultra-boosted beam act as stochastic plane waves - scattering amplitudes (of elastic scattering, nonlinear Compton and nonlinear Breit-Wheeler) are obtained without approximation by averaging plane wave scattering amplitudes over all possible plane wave parameters. The relevant plane waves are ultra-short and, as such, scattering on ultra-boosted beams does not exhibit the conjectured strong-field behaviour of QED based on the locally constant field approximation.
description: 14 pages, 4 figures
Systematic uncertainties in MonteCarlo simulations of the atmospheric muon flux in the 5-line ANTARES detector
Creators: name: Margiotta, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The ANTARES detector was operated in a configuration with 5 lines for a period of 10 months from February until November 2007. The duty cycle was better than 80% during this period and almost 2*10**7 atmospheric muon triggers were collected. This large sample was used to test Monte Carlo simulation programs and to evaluate possible systematic effects due to uncertainties on environmental parameters and detector description. First results are presented and discussed.
description: 4 pages, 7 figures, presented at the International Workshop on a Very Large Volume $\nu$ Telescope for the Mediterranean Sea, 22-24 Oct. 2007, Toulon, France
The normal distribution is $\boxplus$-infinitely divisible
Creators: name: Belinschi, Serban T.
name: Bozejko, Marek
name: Lehner, Franz
name: Speicher, Roland
Publisher: name: arXiv
Year: 2009
Subjects: subject: Operator Algebras (math.OA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 46L54, 05C30

description: We prove that the classical normal distribution is infinitely divisible with respect to the free additive convolution. We study the Voiculescu transform first by giving a survey of its combinatorial implications and then analytically, including a proof of free infinite divisibility. In fact we prove that a subfamily Askey-Wimp-Kerov distributions are freely infinitely divisible, of which the normal distribution is a special case. At the time of this writing this is only the third example known to us of a nontrivial distribution that is infinitely divisible with respect to both classical and free convolution, the others being the Cauchy distribution and the free 1/2-stable distribution.
description: AMS LaTeX, 29 pages, using tikz and 3 eps figures; new proof including infinite divisibility of certain Askey-Wilson-Kerov distibutions
Analysis of eruptive and seismic sequences to improve the short-and long-term eruption forecasting
Creators: name: Garcia Aristizabal, Alexander <1977>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2010
Subjects: GEO/10 Geofisica della terra solida

description: Forecasting the time, location, nature, and scale of volcanic eruptions is one of the most urgent aspects of modern applied volcanology.  The reliability of probabilistic forecasting procedures is strongly related to the reliability of the input information provided, implying objective criteria for interpreting the historical and monitoring data.  For this reason both, detailed analysis of past data and more basic research into the processes of volcanism, are fundamental tasks of a continuous information-gain process; in this way the precursor events of eruptions can be better interpreted in terms of their physical meanings with correlated uncertainties. This should lead to better predictions of the nature of eruptive events.

In this work we have studied different problems associated with the long- and short-term eruption forecasting assessment.  First, we discuss different approaches for the analysis of the eruptive history of a volcano, most of them generally applied for long-term eruption forecasting purposes;  furthermore, we present a model  based on the characteristics of a Brownian passage-time process to describe recurrent eruptive activity, and apply it for long-term, time-dependent, eruption forecasting (Chapter 1).

Conversely, in an effort to define further monitoring parameters as input data for short-term eruption forecasting in probabilistic models (as for example, the Bayesian Event Tree for eruption forecasting -BET_EF-), we analyze some characteristics of typical seismic activity recorded in active volcanoes; in particular, we use some methodologies that may be applied to analyze long-period (LP) events (Chapter 2) and volcano-tectonic (VT) seismic swarms (Chapter 3); our analysis in general are oriented toward the tracking of phenomena that can provide information about magmatic processes.  Finally, we discuss some possible ways to integrate the results presented in Chapters 1 (for long-term EF), 2 and 3 (for short-term EF) in the BET_EF model (Chapter 4).
APERTIF, a focal plane array for the WSRT
Creators: name: Verheijen, M. A. W.
name: Oosterloo, T. A.
name: van Cappellen, W. A.
name: Bakker, L.
name: Ivashina, M. V.
name: van der Hulst, J. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we describe a focal plane array (FPA) prototype, based on Vivaldi elements, developed for the Westerbork Synthesis Radio Telescope (WSRT) to increase its instantaneous field of view by a factor 25 and double its current bandwidth. This prototype is the first step in a project that has the ambition to equip most of the WSRT antennas with FPAs to improve the survey speed of the telescope. Examples of scientific applications are surveys of the northern sky in polarised continuum and HI emission, and efficient searches for pulsars and transients.
description: 7 pages, 6 figures. Presented at "The Evolution of Galaxies through the Neutral Hydrogen Window", Feb 1-3, 2008, Arecibo Observatory, Puerto Rico. High resolution versions of figures available in jpg-format
Improving the anaerobic digestion of sewage sludge by adding cobalt nanoparticles
Creators: name: Lizama, Alfredo Córdova
name: Figueiras, Cristian Carrera
name: Pedreguera, Alejandro Zepeda
name: Saady, Noori M. Cata
name: Espinoza, Juan Enrique Ruiz
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biochemistry
subject: Space Science
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified

description: This work evaluated the effects of cobalt nanoparticles (CoNPs) (0.025–7 mg/gVS) on the intensification of sewage sludge anaerobic digestion (AD) using biochemical methane potential (BMP) tests. This study was motivated by the need to improve the efficiency and stability of anaerobic digestion of sewage sludge, a critical process in waste management and renewable energy production. The effects at doses less than 2 mg/gVS were not substantial, but 3–7 mg/gVS improved the performance. The maximum biogas yield was 232 mL/gVS (at a dose of 7 mg/gVS), whereas it was 132 mL/gVS in the control (zero dose). Similarly, the reductions in the volatile solids and methane contents reached maxima of 16 and 74.3%, respectively. The analyses of volatile fatty acids, redox potential, and electron transfer system activity indicated that the addition of CoNPs stimulated the early stages of AD. Finally, acetate consumption and the increase in CH4 content suggested that CoNPs positively affected system stability and acetoclastic methanogenesis. That is, CoNPs effectively intensified the behaviour and stability of the anaerobic process. The novelty of this research lies in the comprehensive evaluation of the effects of CoNPs across a wide range of doses on sewage sludge AD, providing new insights into the optimisation of this process for increased biogas production and organic matter reduction.
Anisopygus pseudonymus
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
Anisopygus
Anisopygus pseudonymus

description: Anisopygus pseudonymus (W ESMAEL, 1845)
M a t e r i a l e x a m i n e d: Trap 2: 1♁ 20.iv.-5.v., 1♁ 20.v.-1.vi.
 Remark: The available ♁♁ have an extensive ivory coloration: flagellomeres 8-10, palps, base of mandible, clypeus, face, tegula, central spot of scutellum, small posterolateral spots on 1 st and 2 nd tergites and base of all tibiae ivory. Upper outer orbit with reddish stripe. Fore femur and fore tibia yellowish frontally. They are otherwise black.
D i s t r i b u t i o n: Holarctic, 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 pages 97-98, DOI: 10.5281/zenodo.10415120
Affinely-rigid body and oscillatory dynamical models on GL(2,R)
Creators: name: Martens, Agnieszka
name: Sławianowski, Jan J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Discussed is a model of the two-dimensional affinely-rigid body with the double dynamical isotropy. We investigate the systems with potential energies for which the variables can be separated. The special stress is laid on the model of the harmonic oscillator potential and certain anharmonic alternatives. Some explicit solutions are found on the classical, quasiclassical (Bohr-Sommerfeld) and quantum level.
description: 32 pages
Hydrothermal chemical modification of red mud for efficient adsorption of methylene blue
Creators: name: Hu, Haiyi
name: Yang, Yongqiong
name: Zhou, Guiyong
name: Wang, Ning
name: Gu, Hannian
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Red mud (RM) is the industrial solid waste produced after alumina extraction from bauxite, and most RM is directly discharged to the landfill yards without any treatment. In this study, modified red mud (MRM) was synthesized by a hydrothermal chemical modification method as an efficient adsorbent for methylene blue (MB) removal. The prepared MRM was characterized by X-ray fluorescence spectroscopy, X-ray diffraction, scanning electron microscope, transmission electron microscope, and Fourier transform infrared spectrometer. The effects of reaction time, initial MB concentrations, MRM dosage, temperature, and system pH were investigated in the MB batch adsorption experiments. The results showed that the modification method increased the specific surface area of RM material from 16.72 to 414.47 m2/g. The maximum adsorption capacity of MRM for MB was 280.18 mg/g under the conditions of initial MB concentration of 1000 mg/L, reaction time of 300 min, temperature of 25 ℃, and natural pH of 6.06. Meanwhile, the adsorption kinetics and equilibrium isotherms were demonstrated to fit well with the pseudo-second-order kinetic model and Temkin isotherm, respectively. This study provides a new method for the valorization of RM and demonstrates that MRM can be used as a low cost and environmentally friendly potential adsorbent for the removal of MB from wastewater.
Satellite dynamics on the Laplace surface
Creators: name: Tremaine, Scott
name: Touma, Jihad
name: Namouni, Fathi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The orbital dynamics of most planetary satellites is governed by the quadrupole moment from the equatorial bulge of the host planet and the tidal field from the Sun. On the Laplace surface, the long-term orbital evolution driven by the combined effects of these forces is zero, so that orbits have a fixed orientation and shape. The "classical" Laplace surface is defined for circular orbits, and coincides with the planet's equator at small planetocentric distances and with its orbital plane at large distances. A dissipative circumplanetary disk should settle to this surface, and hence satellites formed from such a disk are likely to orbit in or near the classical Laplace surface. This paper studies the properties of Laplace surfaces. Our principal results are: (i) if the planetary obliquity exceeds 68.875 deg there is a range of semimajor axes in which the classical Laplace surface is unstable; (ii) at some obliquities and planetocentric distances there is a distinct Laplace surface consisting of nested eccentric orbits, which bifurcates from the classical Laplace surface at the point where instability sets in; (iii) there is also a "polar" Laplace surface perpendicular to the line of nodes of the planetary equator on the planetary orbit; (iv) for circular orbits, the polar Laplace surface is stable at small planetocentric distances and unstable at large distances; (v) at the onset of instability this polar Laplace surface bifurcates into two polar Laplace surfaces composed of nested eccentric orbits.
description: 34 pages, 9 figures
Physically motivated fit to mass surface density profiles observed in galaxies
Creators: name: Almeida, J. Sanchez
name: Trujillo, I.
name: Plastino, A. R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Polytropes have gained renewed interest because they account for several seemingly-disconnected observational properties of galaxies. Here we study if polytropes are also able to explain the stellar mass distribution within galaxies. We develop a code to fit surface density profiles using polytropes projected in the plane of the sky (propols). Sersic profiles are known to be good proxies for the global shapes of galaxies and we find that, ignoring central cores, propols and Sersic profiles are indistinguishable within observational errors (within 5 % over 5 orders of magnitude in surface density). The range of physically meaningful polytropes yields Sersic indexes between 0.4 and 6. The code has been systematically applied to ~750 galaxies with carefully measured mass density profiles and including all morphological types and stellar masses (7 < log (Mstar/Msun) < 12). The propol fits are systematically better than Sersic profiles when log(Mstar/Msun) < 9 and systematically worst when log(Mstar/Msun) > 10. Although with large scatter, the observed polytropic indexes increase with increasing mass and tend to cluster around m=5. For the most massive galaxies, propols are very good at reproducing their central parts, but they do not handle well cores and outskirts altogether. Polytropes are self-gravitating systems in thermal meta-equilibrium as defined by the Tsallis entropy. Thus, the above results are compatible with the principle of maximum Tsallis entropy dictating the internal structure in dwarf galaxies and in the central region of massive galaxies.
description: Accepted for publication in ApJ. The fitting code is publicly available at https://github.com/jorgesanchezalmeida/polytropic-fits
Asteroseismology of solar-type stars: signatures of convective and/or helium cores
Creators: name: Soriano, M.
name: Vauclair, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Asteroseismology of solar-type stars is an important tool for constraining stellar parameters and internal structure. Several frequency combinations are largely used for comparisons between models and observations. In particular, the ``small separations'' are very sensitive to stellar cores. We showed in a previous paper that they can change sign, in contradiction with the ``asymptotic theory'', and that this behaviour could correspond to signatures of convective and/or helium cores. Here we analyse this behaviour in detail by systematic modelling during stellar evolution. We computed evolutionary tracks for models with various masses (from 1.05 to 1.25 Msun) and various chemical composition, with and without overshooting. We computed the adiabatic oscillation frequencies of the models and analysed the evolution of their small separations along an evolutionary track. We found that, for all cases, the stars go through a stage, during their evolution time, where the small separations computed between degrees l=0 and l=2 become negative in the observed range of frequencies. This behaviour is clearly related to the signature of a helium-rich core. We discuss the consequences for the interpretation of the acoustic frequencies observed in solar-type stars.
description: 14 pages, 10 figures, accepted for publication in A&A
Aoplus ochropis
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
Aoplus
Aoplus ochropis

description: Aoplus ochropis (GMELIN, 1790)
M a t e r i a l e x a m i n e d: Trap4: 1♀ 5-19.x.
 Remark: This ♀ differs from typical European specimens by its dark coloration: head and mesosoma including legs and metasoma black; only flagellum with ivory ring and 6 th tergite with small and 7 th tergite with large ivory spots. It is otherwise typical and differs from A. lugubris (BERTHOUMIEU) by a large scopa on hind coxa.
 This melanistic color pattern resembles A. ochropis coloradensis HEINRICH, 1962 from the Nearctic region and might occur preferably in specimens from higher altitudes.
D i s t r i b u t i o n: Holarctic 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 98, DOI: 10.5281/zenodo.10415120
Aoplus personatus
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
Aoplus
Aoplus personatus

description: Aoplus personatus (GRAVENHORST, 1829)
M a t e r i a l e x a m i n e d: Trap4:1♁7-21.ix.
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 98, DOI: 10.5281/zenodo.10415120
Magnetic fields and spiral arms in the galaxy M51
Creators: name: Fletcher, A.
name: Beck, R.
name: Shukurov, A.
name: Berkhuijsen, E. M.
name: Horellou, C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: (Abridged) We use new multi-wavelength radio observations, made with the VLA and Effelsberg telescopes, to study the magnetic field of the nearby galaxy M51 on scales from $200\pc$ to several $\kpc$. Interferometric and single dish data are combined to obtain new maps at \wwav{3}{6} in total and polarized emission, and earlier \wav{20} data are re-reduced. We compare the spatial distribution of the radio emission with observations of the neutral gas, derive radio spectral index and Faraday depolarization maps, and model the large-scale variation in Faraday rotation in order to deduce the structure of the regular magnetic field. We find that the \wav{20} emission from the disc is severely depolarized and that a dominating fraction of the observed polarized emission at \wav{6} must be due to anisotropic small-scale magnetic fields. Taking this into account, we derive two components for the regular magnetic field in this galaxy: the disc is dominated by a combination of azimuthal modes, $m=0+2$, but in the halo only an $m=1$ mode is required to fit the observations. We disuss how the observed arm-interarm contrast in radio intensities can be reconciled with evidence for strong gas compression in the spiral shocks. The average arm--interam contrast, representative of the radii $r>2\kpc$ where the spiral arms are broader, is not compatible with straightforward compression: lower arm--interarm contrasts than expected may be due to resolution effects and \emph{decompression} of the magnetic field as it leaves the arms. We suggest a simple method to estimate the turbulent scale in the magneto-ionic medium from the dependence of the standard deviation of the observed Faraday rotation measure on resolution. We thus obtain an estimate of $50\pc$ for the size of the turbulent eddies.
description: 21 pages, 18 figures (some at lower resolution than submitted version), accepted for publication in MNRAS
Large-scale magnetic topologies of early M dwarfs
Creators: name: Donati, JF
name: Morin, J
name: Petit, P
name: Delfosse, X
name: Forveille, T
name: Auriere, M
name: Cabanac, R
name: Dintrans, B
name: Fares, R
name: Gastine, T
name: Jardine, MM
name: Lignieres, F
name: Paletou, F
name: Velez, J Ramirez
name: Theado, S
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present here additional results of a spectropolarimetric survey of a small sample of stars ranging from spectral type M0 to M8 aimed at investigating observationally how dynamo processes operate in stars on both sides of the full convection threshold (spectral type M4). The present paper focuses on early M stars (M0--M3), i.e. above the full convection threshold. Applying tomographic imaging techniques to time series of rotationally modulated circularly polarised profiles collected with the NARVAL spectropolarimeter, we determine the rotation period and reconstruct the large-scale magnetic topologies of 6 early M dwarfs. We find that early-M stars preferentially host large-scale fields with dominantly toroidal and non-axisymmetric poloidal configurations, along with significant differential rotation (and long-term variability); only the lowest-mass star of our subsample is found to host an almost fully poloidal, mainly axisymmetric large-scale field ressembling those found in mid-M dwarfs. This abrupt change in the large-scale magnetic topologies of M dwarfs (occuring at spectral type M3) has no related signature on X-ray luminosities (measuring the total amount of magnetic flux); it thus suggests that underlying dynamo processes become more efficient at producing large-scale fields (despite producing the same flux) at spectral types later than M3. We suspect that this change relates to the rapid decrease in the radiative cores of low-mass stars and to the simultaneous sharp increase of the convective turnover times (with decreasing stellar mass) that models predict to occur at M3; it may also be (at least partly) responsible for the reduced magnetic braking reported for fully-convective stars.
description: MNRAS, in press
Dominant Reaction Pathways in High Dimensional Systems
Creators: name: Autieri, E.
name: Faccioli, P.
name: Sega, M.
name: Pederiva, F.
name: Orland, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: This paper is devoted to the development of a theoretical and computational framework to efficiently sample the statistically significant thermally activated reaction pathways, in multi-dimensional systems obeying Langevin dynamics. We show how to obtain the set of most probable reaction pathways and compute the corrections due to quadratic thermal fluctuations around such trajectories. We discuss how to obtain predictions for the evolution of arbitrary observables and how to generate conformations which are representative of the transition state ensemble. We present an illustrative implementation of our method by studying the diffusion of a point particle in a 2-dimensional funneled external potential.
description: 18 pages, 7 figures. Improvement in the text and in the figures. Version submitted for publication
Baranisobas lateritius
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
Baranisobas
Baranisobas lateritius

description: Baranisobas lateritius (BERTHOUMIEU, 1904)
M a t e r i a l e x a m i n e d: Trap 4: 2♀♀ 15-29.vi.; trap 7: 1♀ 5-20.v., 2♀♀ 19.x.-3.xi.
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 98, DOI: 10.5281/zenodo.10415120