cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
High-order spectral singularity
Creators: name: Xu, H. S.
name: Xie, L. C.
name: Jin, L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Exceptional point and spectral singularity are two types of singularity that are unique to non-Hermitian systems. Here, we report the high-order spectral singularity as a high-order pole of the scattering matrix for a non-Hermitian scattering system, and the high-order spectral singularity is a unification of the exceptional point and spectral singularity. At the high-order spectral singularity, the scattering coefficients have high-order divergence and the scattering system stimulates high-order lasing. The wave emission intensity is polynomially enhanced, and the order of the growth in the polynomial intensity linearly scales with the order of the spectral singularity. Furthermore, the coherent input controls and alters the order of the spectral singularity. Our findings provide profound insights into the fundamentals and applications of high-order spectral singularities.
description: 8 pages, 3 figures
A connectome manipulation framework for the systematic and reproducible study of structure-function relationships through simulations
Creators: name: Pokorny, Christoph
name: Awile, Omar
name: Isbister, James B.
name: Kurban, Kerem
name: Wolf, Matthias
name: Reimann, Michael W.
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Networks and dynamical systems

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
The XRISM Pipeline Software System: Connecting Continents, Processes, Testing, and Scientists
Creators: name: Doyle, Trisha F.
name: Holland, Matthew P.
name: Hill, Robert S.
name: Yaqoob, Tahir
name: Loewenstein, Mike
name: Miller, Eric D.
name: Hall, Patricia L.
name: Braun, Efrem
name: Perez-Solis, Efrain
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: XRISM (X-Ray Imaging and Spectroscopy Mission), with the Resolve high-resolution spectrometer and the Xtend wide-field imager on-board, is designed to build on the successes of the abbreviated Hitomi mission to address outstanding astrophysical questions using high resolution X-ray spectroscopy. In preparation for launch, the XRISM Science Data Center (SDC) is constructing and testing an integrated and automated system for data transfer and processing based upon the Hitomi framework, introducing improvements informed by previous experience and internal collaboration. The XRISM pipeline ingests FITS files transferred from Japan that contain data converted from spacecraft telemetry, processes (calibrates and screens) the data, creates data products, and transfers data and metadata used to populate data archives in the U.S. and Japan. Improvement and rigorous testing of the system are conducted from the single-task level through fully-integrated levels. We provide an overview of the XRISM pipeline system, with a focus on the data processing, and how new and improved documentation and testing are creating accessible and effective software tools for future XRISM data.
description: 13 pages, 7 figures, SPIE Conference: Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray
Chronic optogenetic stimulation has the potential to shape the collective activity of neuronal cell cultures
Creators: name: Adler, Cyprian
name: Schwarz, Friedrich
name: Vogel, Julian
name: Stadelmann, Christine
name: Wolf, Fred
name: Schottdorf, Manuel
name: Neef, Andreas
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Networks and dynamical systems

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Combining the $Δ$-Self-Consistent-Field and GW Methods for Predicting Core Electron Binding Energies in Periodic Solids
Creators: name: Kahk, Juhan Matthias
name: Lischner, Johannes
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For the computational prediction of core electron binding energies in solids, two distinct kinds of modelling strategies have been pursued: the $Δ$-Self-Consistent-Field method based on density functional theory (DFT), and the GW method. In this study, we examine the formal relationship between these two approaches, and establish a link between them. The link arises from the equivalence, in DFT, between the total energy difference result for the first ionization energy, and the eigenvalue of the highest occupied state, in the limit of infinite supercell size. This link allows us to introduce a new formalism, which highlights how in DFT - even if the total energy difference method is used to calculate core electron binding energies - the accuracy of the results still implicitly depends on the accuracy of the eigenvalue at the valence band maximum in insulators, or at the Fermi level in metals. We examine, whether incorporating a quasiparticle correction for this eigenvalue from GW theory improves the accuracy of the calculated core electron binding energies, and find that the inclusion of vertex corrections is required for achieving quantitative agreement with experiment.
Homeostatic gain modulation drives changes in heterogeneity expressed by neural populations
Creators: name: Trotter, Daniel
name: Valiante, Taufik
name: Lefebvre, Jeremie
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Networks and dynamical systems

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Low-dimensional sensory representations early in development facilitate receptive field formation
Creators: name: Kong, Deyue
name: Genios, Markos
name: Smith, Gordon
name: Kaschube, Matthias
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Data analysis, machine learning and neuroinformatics

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Simulating full QCD at nonzero density using the complex Langevin equation
Creators: name: Sexty, Denes
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The complex Langevin method is extended to full QCD at non-zero chemical potential. The use of gauge cooling stabilizes the simulations at small enough lattice spacings. At large fermion mass the results are compared to the HQCD approach, in which the spatial hoppings of fermionic variables are neglected, and good agreement is found. The method allows simulations also at high densities, all the way up to saturation.
description: 5 pages, 5 figures, PLB version, minor changes
Historical Redlining and Park Use during the COVID-19 Pandemic.docx
Creators: name: Li, Yuanfei
name: Huang, Youqin
name: Li, Rui
name: zhang, kai
Publisher: name: Health Research Alliance
Year: 2024
Subjects: classificationCode: 420602
subject: Health equity
classificationCode: 420606
subject: Social determinants of health

description:   
Background: Despite the health benefits of urban green space, disparities in its access and use have long existed. Emerging evidence suggests an adverse impact of redlining, a discriminatory practice decades ago, on multiple health outcomes. However, whether and to what degree redlining contributes to these disparities remains unknown particularly during a pandemic. With newly available mobility data tracking the locations of large numbers of mobile devices, this study links historical redlining with changes in green space use during the COVID-19 pandemic. 
Objective: This study examines how changes in park visits during the lockdown period (3/23/2020-8/2/2020) are associated with redlining across census tracts in three large U.S. cities. 
Methods: HOLC neighborhood redlining grade data were merged with SafeGraph mobility data at census tract level for New York City, Chicago, and Philadelphia. Ordinary Least Square regressions were conducted to assess the association between dominant redlining grade and relative change in park visits in census tracts by comparing the lockdown period to the reference period. Spatial error and lag models were also used to account for potential spatial autocorrelation. 
Results: Park visits during the lockdown period in 2020 decreased by at least one-third in the three cities. The influence of redlining varied across neighborhoods and cities. In New York City, neighborhoods with more redlined areas experienced the largest drop, sharper decreases concentrated in neighborhoods previously graded as “best” or “still desirable” in Philadelphia, but the effect was barely present in Chicago. In addition, changes in park visits are positively correlated between neighborhoods in New York City and Chicago, but it’s not observed in Philadelphia.
Significance: The link between historical redlining and current green space use is context-specific. As neighborhood dynamics vary across places, more decreases in park visits were observed in both historically lower-graded (New York City) and higher-graded neighborhoods (Philadelphia).
Polyakov loops and the Hosotani mechanism on the lattice
Creators: name: Cossu, Guido
name: Hatanaka, Hisaki
name: Hosotani, Yutaka
name: Noaki, Jun-Ichi
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore the phase structure and symmetry breaking in four-dimensional SU(3) gauge theory with one spatial compact dimension on the lattice ($16^3 \times 4$ lattice) in the presence of fermions in the adjoint representation with periodic boundary conditions. We estimate numerically the density plots of the Polyakov loop eigenvalues phases, which reflect the location of minima of the effective potential in the Hosotani mechanism. We find strong indication that the four phases found on the lattice correspond to SU(3)-confined, SU(3)-deconfined, SU(2) x U(1), and U(1) x U(1) phases predicted by the one-loop perturbative calculation. The case with fermions in the fundamental representation with general boundary conditions, equivalent to the case of imaginary chemical potentials, is also found to support the $Z_3$ symmetry breaking in the effective potential analysis.
description: 43 pages, 19 figures, 3 tables. Updated version matches the journal content
Exact solution to the problem of slow oscillations in coronal loops and its diagnostic applications
Creators: name: Zavershinskii, Dmitrii I.
name: Molevich, Nonna E.
name: Riashchikov, Dmitrii S.
name: Belov, Sergey A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Magnetoacoustic oscillations are nowadays routinely observed in various regions of the solar corona. This allows them to be used as means of diagnosing plasma parameters and processes occurring in it. Plasma diagnostics, in turn, requires a sufficiently reliable MHD model to describe the wave evolution. In our paper, we focus on obtaining the exact analytical solution to the problem of the linear evolution of standing slow magnetoacoustic (MA) waves in coronal loops. Our consideration of the properties of slow waves is conducted using the infinite magnetic field assumption. The main contribution to the wave dynamics in this assumption comes from such processes as thermal conduction, unspecified coronal heating, and optically thin radiation cooling. In our consideration, the wave periods are assumed to be short enough so that the thermal misbalance has a weak effect on them. Thus, the main non-adiabatic process affecting the wave dynamics remains thermal conduction. The exact solution of the evolutionary equation is obtained using the Fourier method. This means that it is possible to trace the evolution of any harmonic of the initial perturbation, regardless of whether it belongs to entropy or slow mode. We show that the fraction of energy between entropy and slow mode is defined by the thermal conduction and coronal loop parameters. It is shown for which parameters of coronal loops it is reasonable to associate the full solution with a slow wave, and when it is necessary to take into account the entropy wave. Furthermore, we obtain the relationships for the phase shifts of various plasma parameters applicable to any values of harmonic number and thermal condition coefficient. In particular, it is shown that the phase shifts between density and temperature perturbations for the second harmonic of the slow wave vary between $π/2$ to 0, but are larger than for the fundamental harmonic.
On the time lag between solar wind dynamic parameters and solar activity UV proxies
Creators: name: Reda, R.
name: Giovannelli, L.
name: Alberti, T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The solar activity displays variability and periodic behaviours over a wide range of timescales, with the presence of a most prominent cycle with a mean length of 11 years. Such variability is transported within the heliosphere by solar wind, radiation and other processes, affecting the properties of the interplanetary medium. The presence of solar activity-related periodicities is well visible in different solar wind and geomagnetic indices, although with time lags with respect to the solar one, leading to hysteresis cycles. Here, we investigate the time lag behaviour between a physical proxy of the solar activity, the Ca II K index, and two solar wind parameters (speed and dynamic pressure), studying how their pairwise relative lags vary over almost five solar cycles. We find that the lag between Ca II K index and solar wind speed is not constant over the whole time interval investigated, with values ranging from 6 years to 1 year (average 3.2 years). A similar behaviour is found also for the solar wind dynamic pressure. Then, by using a Lomb-Scargle periodogram analysis we obtain a 10.21-year mean periodicity for the speed and 10.30-year for the dynamic pressure. We speculate that the different periodicities of the solar wind parameters with respect to the solar 11-year cycle may be related to the overall observed temporal evolution of the time lags. Finally, by accounting for them, we obtain empirical relations that link the amplitude of the Ca II K index to the two solar wind parameters.
description: 10 pages, 6 figures
sMILES SSPs: A Library of Semi-Empirical MILES Stellar Population Models with Variable [$α$/Fe] Abundances
Creators: name: Knowles, Adam T.
name: Sansom, Anne E.
name: Vazdekis, Alex
name: Prieto, Carlos Allende
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a new library of semi-empirical stellar population models that are based on the empirical MILES and semi-empirical sMILES stellar libraries. The models span a large range of age and metallicity, in addition to an [$α$/Fe] coverage from $-$0.2 to $+$0.6 dex, at MILES resolution (FWHM=2.5$ \mathring {\mathrm A}$) and wavelength coverage (3540.5-7409.6$ \mathring {\mathrm A}$). These models are aimed at exploring abundance ratios in the integrated light from stellar populations in star clusters and galaxies. Our approach is to build SSPs from semi-empirical stars at particular [$α$/Fe] values, thus producing new SSPs at a range of [$α$/Fe] values from sub-solar to super-solar. We compare these new SSPs with previously published and well-used models and find similar abundance pattern predictions, but with some differences in age indicators. We illustrate a potential application of our new SSPs, by fitting them to the high signal-to-noise data of stacked SDSS galaxy spectra. Age, metallicity and [$α$/Fe] trends were measured for galaxy stacks with different stellar velocity dispersions and show systematic changes, in agreement with previous analyses of subsets of those data. These new SSPs are made publicly available.
description: 21 pages, 18 figures plus Supplementary Material. Accepted for publication in MNRAS
Psychedelic space of neuronal population activity: emerging and disappearing contrastive dimensions
Creators: name: Goldschmitt, Dirk
name: Dearnley, Bradley
name: Howarth, Clare
name: Berwick, Jason
name: Su, Li
name: Okun, Michael
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Data analysis, machine learning and neuroinformatics

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Sudakov-type minoration for log-concave vectors
Creators: name: Latała, Rafał
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 60E15, 46B09, 52A20

description: We formulate and discuss a conjecture concerning lower bounds for norms of log-concave vectors, which generalizes the classical Sudakov minoration principle for Gaussian vectors. We show that the conjecture holds for some special classes of log-concave measures and some weaker forms of it are satisfied in the general case. We also present some applications based on chaining techniques.
description: 27 pages, updated references and corrected typos
Do Finite-Size Lyapunov Exponents Detect Coherent Structures?
Creators: name: Karrasch, Daniel
name: Haller, George
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: Chaotic Dynamics (nlin.CD)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Ridges of the Finite-Size Lyapunov Exponent (FSLE) field have been used as indicators of hyperbolic Lagrangian Coherent Structures (LCSs). A rigorous mathematical link between the FSLE and LCSs, however, has been missing. Here we prove that an FSLE ridge satisfying certain conditions does signal a nearby ridge of some Finite-Time Lyapunov Exponent (FTLE) field, which in turn indicates a hyperbolic LCS under further conditions. Other FSLE ridges violating our conditions, however, are seen to be false positives for LCSs. We also find further limitations of the FSLE in Lagrangian coherence detection, including ill-posedness, artificial jump-discontinuities, and sensitivity with respect to the computational time step.
description: 22 pages, 7 figures, v3: corrects the z-axis labels of Fig. 2 (left) that appears in the version published in Chaos
Deep generative networks as a computational approach for global non-linear control modeling in the nematode C. elegans
Creators: name: Voina, Doris
name: Brunton, Steven
name: Kutz, Jose N.
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Data analysis, machine learning and neuroinformatics

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Task choice influences single-neuron tuning predictions in connectome-constrained modeling
Creators: name: Pei, Felix
name: Lappalainen, Janne K.
name: Turaga, Srinivas C.
name: Macke, Jakob H.
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Data analysis, machine learning and neuroinformatics

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
On The Role Of Temporal Hierarchy In Spiking Neural Networks
Creators: name: Moro, Filippo
name: Aceituno, Pau V.
name: Payvand, Melika
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Data analysis, machine learning and neuroinformatics

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Enhancing the power of higher order statistics by temporal stripe preselection
Creators: name: Schneider, Gaby
name: Backhaus, Hendrik
name: Cleppien, Dirk
name: Stroh, Albrecht
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Data analysis, machine learning and neuroinformatics

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
A Study of a biologically plausible combination of Sparsity, Weight Imprinting and Forward Inhibition in Continual Learning
Creators: name: Atefi, Golzar
name: Westerhof, Justus
name: Gers, Felix A.
name: Rodner, Erik
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Data analysis, machine learning and neuroinformatics

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Creation and dynamics of two-dimensional skyrmions in antiferromagnetic spin-1 Bose-Einstein condensates
Creators: name: Ollikainen, T.
name: Ruokokoski, E.
name: Möttönen, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We numerically simulate the creation process of two-dimensional skyrmionic excitations in antiferromagnetic spin-1 Bose--Einstein condensates by solving the full three-dimensional dynamics of the system from the Gross--Pitaevskii equation. Our simulations reproduce quantitatively the experimental results of [Choi et al., Phys. Rev. Lett. 108, 035301 (2012)] without any fitting parameters. Furthermore, we examine the stability of the skyrmion by computing the temporal evolution of the condensate in a harmonic potential. The presence of both the quadratic Zeeman effect and dissipation in the simulations is vital for reproducing the experimentally observed decay time.
description: 6 pages, 7 figures
Modeling gait dynamics with switching non-linear dynamical systems
Creators: name: Stein, Heike
name: Andrianarivelo, Njiva A.
name: Batifol, Clarisse
name: Gabillet, Jeremy
name: Jalil, Ali
name: Graupner, Michael
name: Cayco Gajic, N. Alex
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Data analysis, machine learning and neuroinformatics

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
On spaces of modular forms spanned by eta-quotients
Creators: name: Rouse, Jeremy
name: Webb, John J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: Primary 11F20, 11F30, Secondary 11G18

description: An eta-quotient of level $N$ is a modular form of the shape $f(z) = \prod_{δ| N} η(δz)^{r_δ}$. We study the problem of determining levels $N$ for which the graded ring of holomorphic modular forms for $Γ_{0}(N)$ is generated by (holomorphic, respectively weakly holomorphic) eta-quotients of level $N$. In addition, we prove that if $f(z)$ is a holomorphic modular form that is non-vanishing on the upper half plane and has integer Fourier coefficients at infinity, then $f(z)$ is an integer multiple of an eta-quotient. Finally, we use our results to determine the structure of the cuspidal subgroup of $J_{0}(2^{k})(\mathbb{Q})$.
description: 23 pages
Signatures of fractal temporal dependencies are correlated between MEG and fMRI
Creators: name: Schäfer, Tim J.
name: Gharabaghi, Alireza
name: Levina, Anna
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Data analysis, machine learning and neuroinformatics

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Don't Bet on Luck Alone: Enhancing Behavioral Reproducibility of Quality-Diversity Solutions in Uncertain Domains
Creators: name: Grillotti, Luca
name: Flageat, Manon
name: Lim, Bryan
name: Cully, Antoine
Publisher: name: arXiv
Year: 2023
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences
subject: I.2.8

description: Quality-Diversity (QD) algorithms are designed to generate collections of high-performing solutions while maximizing their diversity in a given descriptor space. However, in the presence of unpredictable noise, the fitness and descriptor of the same solution can differ significantly from one evaluation to another, leading to uncertainty in the estimation of such values. Given the elitist nature of QD algorithms, they commonly end up with many degenerate solutions in such noisy settings. In this work, we introduce Archive Reproducibility Improvement Algorithm (ARIA); a plug-and-play approach that improves the reproducibility of the solutions present in an archive. We propose it as a separate optimization module, relying on natural evolution strategies, that can be executed on top of any QD algorithm. Our module mutates solutions to (1) optimize their probability of belonging to their niche, and (2) maximize their fitness. The performance of our method is evaluated on various tasks, including a classical optimization problem and two high-dimensional control tasks in simulated robotic environments. We show that our algorithm enhances the quality and descriptor space coverage of any given archive by at least 50%.
description: The two first authors contributed equally to this research
The Multipoint Morisita Index for the Analysis of Spatial Patterns
Creators: name: Golay, J.
name: Kanevski, M.
name: Orozco, C. Vega
name: Leuenberger, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: In many fields, the spatial clustering of sampled data points has many consequences. Therefore, several indices have been proposed to assess the level of clustering affecting datasets (e.g. the Morisita index, Ripley's K-function and Rényi's generalized entropy). The classical Morisita index measures how many times it is more likely to select two measurement points from the same quadrats (the data set is covered by a regular grid of changing size) than it would be in the case of a random distribution generated from a Poisson process. The multipoint version (k-Morisita) takes into account k points with k greater than or equal to 2. The present research deals with a new development of the k-Morisita index for (1) monitoring network characterization and for (2) the detection of patterns in monitored phenomena. From a theoretical perspective, a connection between the k-Morisita index and multifractality has also been found and highlighted on a mathematical multifractal set.
Integrating Biological and Artificial Neural Networks for Solving Non-Linear Problems
Creators: name: Vulić, Katarina
name: Küchler, Joël
name: Schulz, Jona
name: Yao, Haotian
name: Valmaggia, Christian
name: Weaver, Sean
name: Ihle, Stephan J.
name: Duru, Jens
name: Vörös, Janos
Publisher: name: G-Node
Year: 2024
Subjects: Computational Neuroscience
Data analysis, machine learning and neuroinformatics

description: Bernstein Conference 2024 abstract. https://bernstein-conference.de
Exormotheca martins-loussaoae (Exormothecaceae, Hepaticae), a new species from Cape Verde
Creators: name: Martins, Anabela
name: Garcia, César Augusto
name: Patiño, Jairo
name: Sim-Sim, Manuela
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: Former phylogenetic evidence for the genus Exormotheca revealed the existence of a distinct and monophyletic clade restricted to the oceanic archipelago of Cape Verde. During the fieldwork carried out in Cape Verde between 2016 and 2019, we found distinctive populations of Exormotheca. In this study, we aim to investigate the Exormotheca pustulosa complex and its relationship to other Exormotheca species that coexist in the same geographical areas, using morphological characteristics, and to present a formal description of a new Exormotheca species from Cape Verde Archipelago. A total of 60 specimens belonging to Exormotheca genus were examined. The specimens included samples, with broad taxonomic coverage of the E. pustulosa species, as well as from two phylogenetically close taxa E. holstii, and E. welwitschii. The characters studied were selected based on previous works that describe and distinguish species within the genus Exormotheca, and from our own observations. A new species, Exormotheca martins-loussaoae from Cape Verde is described. The new species can be recognized by the dark green color of the thallus and the almost entire dark purple scales, and the thallus surface having 6 − 9 regular rows with large conical air chambers, occupied by a thin assimilation tissue.
Observation of a peaking structure in the J/psi phi mass spectrum from B(+/-) to J/psi phi K(+/-) decays
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A peaking structure in the J/psi phi mass spectrum near threshold is observed in B(+/-) to J/psi phi K(+/-) decays, produced in pp collisions at sqrt(s) = 7 TeV collected with the CMS detector at the LHC. The data sample, selected on the basis of the dimuon decay mode of the J/psi, corresponds to an integrated luminosity of 5.2 inverse femtobarns. Fitting the structure to an S-wave relativistic Breit-Wigner lineshape above a three-body phase-space nonresonant component gives a signal statistical significance exceeding five standard deviations. The fitted mass and width values are m = 4148.0 +- 2.4 (stat.) +- 6.3 (syst.) MeV and Gamma = 28 +15 -11 (stat.) +- 19 (syst.) MeV, respectively. Evidence for an additional peaking structure at higher J/psi phi mass is also reported.
description: Replaced with published version. Added journal reference and DOI
A dense mini-Neptune orbiting the bright young star HD 18599
Creators: name: Vines, Jose I.
name: Jenkins, James S.
name: Berdiñas, Zaira
name: Soto, Maritza G.
name: Díaz, Matías R.
name: Alves, Douglas R.
name: Tuomi, Mikko
name: Wittenmyer, Robert A.
name: de Leon, Jerome Pitogo
name: Peña, Pablo
name: Lissauer, Jack J.
name: Ballard, Sarah
name: Bedding, Timothy
name: Bowler, Brendan P.
name: Horner, Jonathan
name: Jones, Hugh R. A.
name: Kane, Stephen R.
name: Kielkopf, John
name: Plavchan, Peter
name: Shporer, Avi
name: Tinney, C. G.
name: Wright, Hui Zhang Duncan J.
name: Addison, Brett
name: Mengel, Matthew W.
name: Okumura, Jack
name: Samadi-Ghadim, Anya
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Very little is known about the young planet population because the detection of small planets orbiting young stars is obscured by the effects of stellar activity and fast rotation which mask planets within radial velocity and transit data sets. The few planets that have been discovered in young clusters generally orbit stars too faint for any detailed follow-up analysis. Here we present the characterization of a new mini-Neptune planet orbiting the bright (V=9) and nearby K2 dwarf star, HD 18599. The planet candidate was originally detected in TESS light curves from Sectors 2, 3, 29, and 30, with an orbital period of 4.138~days. We then used HARPS and FEROS radial velocities, to find the companion mass to be 25.5$\pm$4.6~M$_\oplus$. When we combine this with the measured radius from TESS, of 2.70$\pm$0.05~R$_\oplus$, we find a high planetary density of 7.1$\pm$1.4~g cm$^{-3}$. The planet exists on the edge of the Neptune Desert and is the first young planet (300 Myr) of its type to inhabit this region. Structure models argue for a bulk composition to consist of 23% H$_2$O and 77% Rock and Iron. Future follow-up with large ground- and space-based telescopes can enable us to begin to understand in detail the characteristics of young Neptunes in the galaxy.
description: Accepted in MNRAS
title: Perspectives of ageing in the process of social and cultural change
Creators: name: Schröder, Johannes
name: Pohlmann, Markus
name: Bär, Stefan
name: Berna, Fabrice
name: Breitling, Lutz Philipp
name: Brenner, Hermann
name: Czepek, Judith
name: Essig, Marco
name: Felder, Ekkehard
name: Iller, Carola
name: Klein, Thomas
name: Klinkhammer, Julian
name: Kohl, Jürgen
name: Polanski, Franziska
name: Rapp, Ingmar
name: Sattler, Christine
name: Schiersmann, Christiane
name: Wendelstein, Britta
name: Wienberg, Jana
Publisher: name: University Library Heidelberg
Year: 2012

description: Der vorliegende Bericht stellt die Ergebnisse des Marsilius-Projekts „Perspectives of Ageing in the process of social and cultural change“ (2008-2011) vor. Das interdisziplinäre Projekt führte humanmedizinische-, geistes- und sozialwissen-schaftliche Fragestellungen zusammen. Alter(n) wurde dabei mit der Perspektive auf seine sozialen Kontextbedingungen und auf seine Individualfaktoren in Bezug zu gesundheitlichen und kognitiven Beeinträchtigungen untersucht. Besondere Aufmerksamkeit wurde der Prävention demenzieller Erkrankungen und der Bedeutung sozial- und gesundheitspolitischer Maßnahmen gewidmet. Das Modell der kognitiven Reserve erwies sich in der interdisziplinären Zusammenarbeit als besonders tragfähig. Ausgehend von den Ergebnissen der Teilprojekte wird ein insgesamt optimistisches Perspektive gezeichnet, wie individuelle Vorsorge und günstige soziale Rahmenbedingungen dazu genutzt werden könnten, die kognitive Leistungsfähigkeit älterer Menschen besser und länger zu erhalten.
description: Forschungsansatz, -methode oder -verfahren: empirische Sozialforschung; Korpuslinguistik; Neurobildgebung; Epidemiologie
description: Forum Marsilius-Kolleg, Bd. 3 (2012), Beginn und Erscheinungsfrequenz: Jahr: 2012
Average synaptic activity and neural networks topology: a global inverse problem
Creators: name: Burioni, Raffaella
name: Casartelli, Mario
name: di Volo, Matteo
name: Livi, Roberto
name: Vezzani, Alessandro
Publisher: name: arXiv
Year: 2013
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The dynamics of neural networks is often characterized by collective behavior and quasi-synchronous events, where a large fraction of neurons fire in short time intervals, separated by uncorrelated firing activity. These global temporal signals are crucial for brain functioning. They strongly depend on the topology of the network and on the fluctuations of the connectivity. We propose a heterogeneous mean--field approach to neural dynamics on random networks, that explicitly preserves the disorder in the topology at growing network sizes, and leads to a set of self-consistent equations. Within this approach, we provide an effective description of microscopic and large scale temporal signals in a leaky integrate-and-fire model with short term plasticity, where quasi-synchronous events arise. Our equations provide a clear analytical picture of the dynamics, evidencing the contributions of both periodic (locked) and aperiodic (unlocked) neurons to the measurable average signal. In particular, we formulate and solve a global inverse problem of reconstructing the in-degree distribution from the knowledge of the average activity field. Our method is very general and applies to a large class of dynamical models on dense random networks.
Calibrating ecological indicator values and niche width for a Mediterranean flora
Creators: name: Saatkamp, Arne
name: Falzon, Nicolas
name: Argagnon, Olivier
name: Noble, Virgile
name: Dutoit, Thierry
name: Meineri, Eric
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Bioindication of ecological variables such as humidity, temperature or pH by ecological indicator values of plants is a powerful tool for research in plant ecology, e.g. to detect early vegetation changes. Here, we provide a data set of ecological indicator values including niche width for an entire regional flora. We used an extensive data-base with floristic relevés from Southern France to recalibrate indicator values for light (L), temperature (T), continentality (K), air humidity (A), soil moisture (F), pH (R), productivity (N), soil texture (G), soil organic matter content (O) and salinity (S). Values were recalibrated using average values from co-occurring plants, enabling to develop indicator values for species not yet evaluated previously. Recalibrated values are on a continuous scale and we add standard deviation, median, first and third quartile for each indicator value. Linear regression of average indicator values against measured factors showed higher correlation with recalibrated values compared to original indicator values for temperature, pH and nitrogen, and comparable R2 for moisture. Individual indicator systems performed better than a combination and applying different weighting procedures demonstrated the usefulness of inverse variance. We further illustrate graphically how recalibrated values and niche width increase ecological knowledge on plants.
Neonida grandis Baba & de Saint Laurent 1996
Creators: name: Macpherson, Enrique
name: Baba, Keiji
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Munididae
Neonida
Neonida grandis

description: Neonida grandis Baba & de Saint Laurent, 1996 Neonida grandis Baba & de Saint Laurent, 1996: 480, figs 3g, h, 25, 34a. — Baba 2005: 303 (list). MATERIAL EXAMINED. — Solomon Islands. SALOMON 1, stn CP 1831, 10°12.121’S, 161°19.236’W, 135- 325 m, 5.X.2001, 1 ♂ 3.3 mm; 6 ovig. ♀♀ 6.7-7.8 mm (MNHN-Ga 5326). REMARKS This species was only known by the holotype collected in Vanuatu at 397- 402 m. The specimens collected from the Solomon Islands agree quite well with the original description and illustrations provided in Baba & de Saint Laurent (1996). The tubercular processes in the posterior part of the cardiac region are more reduced than in the holotype, being absent in two specimens. This new record extends the distribution of the species to the Solomon Islands. Genus Onconida Baba & de Saint Laurent, 1996
description: Published as part of Macpherson, Enrique & Baba, Keiji, 2006, New species and records of small galatheids (Crustacea, Decapoda, Galatheidae) from the Southwest and Central Pacific Ocean, pp. 443-456 in Zoosystema 28 (2) on pages 454-455, DOI: 10.5281/zenodo.5402907
description: {"references": ["BABA K. & SAINT LAURENT M. DE 1996. - Crustacea Decapoda: revision of the genus Bathymunida Balss, 1914, and description of six new related genera (Galatheidae), in CROSNIER A. (ed.), Resultats des campagnes MUSORSTOM, volume 15. Memoires du Museum national d'Histoire naturelle 168: 433 - 502.", "BABA K. 2005. - Deep-sea chirostylid and galatheid crustaceans (Decapoda, Anomura) from the Indo- Pacific, with a list of species. Galathea Report 20: 1 - 317."]}
Critical Exponents of Strongly Correlated Fermion Systems from Diagrammatic Multi-Scale Methods
Creators: name: Antipov, Andrey E.
name: Gull, Emanuel
name: Kirchner, Stefan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Self-consistent dynamical approximations for strongly correlated fermion systems are particularly successful in capturing the dynamical competition of local correlations. In these, the effect of spatially extended degrees of freedom is usually only taken into account in a mean field fashion or as a secondary effect. As a result, critical exponents associated with phase transitions have mean field character. Here, we demonstrate that diagrammatic multi-scale methods anchored around local approximations are indeed capable of capturing the non mean-field nature of the critical point of the lattice model encoded in a non-vanishing anomalous dimension, and to correctly describe the transition to mean field like behavior as the number of spatial dimensions increases.
description: 5+4 pages, 5+2 figures
title: Das nicht-verstandene Ich. Eine kommunikationstheoretische Betrachtung von Italo Calvinos Gli amori difficili
Creators: name: Lübbers, Anne
Publisher: name: University Library Heidelberg
Year: 2009

description: This article offers an interpretation of Italo Calvino’s tales Gli amori difficili (Difficult loves). Using the main elements of Shannon and Weavers’ transmission model of communication as categories for interpretation, the difficulties and failures of communication as central themes of these tales are explored. The analysis focuses on the identity crisis of Calvino’s protagonists, the problematic relationship between men and women, and on society as a disturbing influence on both the troubled self and their relationships. The study shows that the original message is not encoded properly, is changed by society’s influence, and cannot be decoded by the receiver. Therefore communication must fail – and the protagonists fall silent. Utilizing the communication model, this article acknowledges Calvino as a masterly observer of relationships and social bonds, offering a key to deeper understanding of Gli amori difficili.
description: HeLix - Dossiers zur romanischen Literaturwissenschaft, Bd. 1 (2009): HeLix, Beginn und Erscheinungsfrequenz: Jahr: 2009, Ausgaben pro Band: 1, Bände pro Jahr: 2
title: „Siamo qui per dare spettacolo.“ Die (De-)Konstruktion des Welttheater-Topos im Romanwerk Ermanno Cavazzonis
Creators: name: Adam, Viktoria
Publisher: name: University Library Heidelberg
Year: 2010

description: The present article addresses the topos of world theater in the novels of the contemporary Italian author Ermanno Cavazzoni. The different functions taken into account by the topos are highlighted by means of a narratological analysis of the novels Il poema dei lunatici and Cirenaica. On the one hand, the symbol of life presented as a play exposes the madness of the main characters; on the other hand, the article shows that the topos reflects the question about the origin and meaning of human life. According to his poetic of ambivalence, the author gives only vague answers to these questions. Cavazzoni combines pagan and Christian creation myths, building a polysemic syncretism, which is deliberately exposed as a construct. As a conclusion, it is pointed out that the simultaneous deconstruction and construction of the topos of world theater redefines the role of the reader, challenging him to participate actively.
description: Forschungsansatz, -methode oder -verfahren: Literaturanalyse
description: HeLix - Dossiers zur romanischen Literaturwissenschaft, Bd. 2 (2010): HeLix, Beginn und Erscheinungsfrequenz: Jahr: 2009, Ausgaben pro Band: 1, Bände pro Jahr: 2
An integrated geochemical and mineralogical investigation on soil-plant system of Pinus halepensis pioneer tree growing on heavy metal polluted mine tailing
Creators: name: Kharazian, Pegah
name: Bacchetta, Gianluigi
name: Cappai, Giovanna
name: Piredda, Martina
name: De Giudici, Giovanni
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology
subject: 60506 Virology

description: The plant species Pinus halepensis grows spontaneously on heavily polluted mine tailings dumps of Campo Pisano (Sardinia, southwestern Italy). The area is characterized mainly by Zn, Pb, and Cd. Sampling campaign was done, related to soils and plant materials (roots, barks, wood, and needles), aimed at evaluating the main mineralogical characteristics, metal content, plant accumulation, and translocation behavior. The polluted substrates were composed of pyrite, dolomite, calcite, quartz, gypsum, and barite with iron sulfate, and iron oxide. Zn ore minerals (smithsonite) and muscovite detected mostly in the deeper soil layers. Zn was the most abundant metal in the substrate as well as plant tissues. Roots accumulated high metal concentrations (664.65–2710 Zn, 58.39–735.88 Pb, and 4.86–11.02 mg kg−1 Cd) reflecting high metal contamination in soil. The biological accumulation and translocation values were reported below one for all plant tissues. Pb, Zn and Cd Translocation Factor (TF) in needles ranged 0.03–0.32, 0.03–0.19, 0.04–0.14. Biological Concentration Factor (BCF) estimated up to 0.17, 0.18, and 0.19, respectively. The results indicate that P. halepensis is an excluder, tolerates high Zn, Pb, and Cd concentrations, restricts their accumulation and translocation to the aerial parts and may be applied for long-term phytostabilization and revegetation processes in abandoned mine tailing sites.
Number of stable digits of any integer tetration
Creators: name: Ripà, Marco
name: Onnis, Luca
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 11A07, 11A15

description: In the present paper we provide a formula that allows to compute the number of stable digits of any integer tetration base $a\in\mathbb{N}_0$. The number of stable digits, at the given height of the power tower, indicates how many of the last digits of the (generic) tetration are frozen. Our formula is exact for every tetration base which is not coprime to $10$, although a maximum gap equal to $V(a)+1$ digits (where $V(a)$ denotes the constant congruence speed of $a$) can occur, in the worst-case scenario, between the upper and lower bound. In addition, for every $a>1$ which is not a multiple of $10$, we show that $V(a)$ corresponds to the $2$-adic or $5$-adic valuation of $a-1$ or $a+1$, or even to the $5$-adic order of $a^{2}+1$, depending on the congruence class of $a$ modulo $20$.
description: 18 pages