cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Carrollian Origin of Spacetime Subsystem Symmetry
Creators: name: Kasikci, Oguzhan
name: Ozkan, Mehmet
name: Pang, Yi
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose that models with spacetime dipole symmetry are connected to Lorentz invariant models via the Carrollian limit. In this way, a recently proposed model with spacetime dipole symmetry was readily reproduced together with its conserved charges. We then couple this model to a dynamical Abelian gauge field and Carroll gravity. Our procedure can be applied in arbitrary dimensions and paves the way to construct new models with spacetime dipole symmetry.
description: 4 pages, v3: title changed, version appeared on PRD
Drag phenomena from holographic massive gravity
Creators: name: Baggioli, Matteo
name: Brattan, Daniel K.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the motion of point particles in a strongly coupled field theory with broken translation invariance. We obtain the energy and momentum loss rates and drag coefficients for a class of such particles by solving for the motion of classical strings in holographic massive gravity. At low temperatures compared to the graviton mass the behaviour of the string is controlled by the appearance of an exotic ground state with non-zero entropy at zero temperature. Additionally we find an upper bound on the diffusion constant for a collection of these particles which is saturated when the mass of the graviton goes to zero.
description: 30 pages, 22 figures, v2: minor revisions, text and images match published version in Classical and Quantum Gravity
Huter villosum
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: 230. H. kalsianum Hüter villosum> picroides. 1 Auch dieser NXGELi-PETERsche Name muss beibehalten werden (A. Becherer, Februar 1955). l. Ssp.kalsianum (Hüter) Z. (ssp. eu-kalsianum Z.) - 4: Grimsel (Lagger,als H. picroides). Die Angabe vom Gr. St. Bernhard (nach Arvet-Touvet) ist nach Zahn irrig.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Le récit d'une jeunesse maoïste : « L'Organisation » de Jean Rolin
Creators: name: Bontempelli, Chiara
Publisher: name: Publifarum
Year: 2020

description: L'Organisation raconte la jeunesse maoïste du narrateur et son éloignement du militantisme. Jean Rolin y fait alterner anecdotes farcesques et moments mélancoliques, entre dérision de la rhétorique maoïste et douloureuse mise en question du rôle du narrateur non seulement au sein de l' « Organisation », mais aussi dans son existence en général. L'article essaye de montrer de quelle manière ce texte de 1996 tracerait les prémisses de la poétique rolinienne, voir de ces narrations errantes, d'ailleurs souvent parcourues par la présence d'un passé militant et par la question de la fin des idéologies.
description: Publifarum, N. 34 (2020): L’imaginaire de Mai 68 dans la littérature contemporaine
Virtual fundamental classes for moduli spaces of sheaves on Calabi-Yau four-folds
Creators: name: Borisov, Dennis
name: Joyce, Dominic
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Let $({\bf X},ω_{\bf X}^*)$ be a separated, $-2$-shifted symplectic derived $\mathbb C$-scheme, in the sense of Pantev, Toen, Vezzosi and Vaquie arXiv:1111.3209, of complex virtual dimension ${\rm vdim}_{\mathbb C}{\bf X}=n\in\mathbb Z$, and $X_{\rm an}$ the underlying complex analytic topological space. We prove that $X_{\rm an}$ can be given the structure of a derived smooth manifold ${\bf X}_{\rm dm}$, of real virtual dimension ${\rm vdim}_{\mathbb R}{\bf X}_{\rm dm}=n$. This ${\bf X}_{\rm dm}$ is not canonical, but is independent of choices up to bordisms fixing the underlying topological space $X_{\rm an}$. There is a 1-1 correspondence between orientations on $({\bf X},ω_{\bf X}^*)$ and orientations on ${\bf X}_{\rm dm}$. Because compact, oriented derived manifolds have virtual classes, this means that proper, oriented $-2$-shifted symplectic derived $\mathbb C$-schemes have virtual classes, in either homology or bordism. This is surprising, as conventional algebro-geometric virtual cycle methods fail in this case. Our virtual classes have half the expected dimension, and from purely complex algebraic input, can yield a virtual class of odd real dimension. Now derived moduli schemes of coherent sheaves on a Calabi-Yau 4-fold are expected to be $-2$-shifted symplectic (this holds for stacks). We propose to use our virtual classes to define new Donaldson-Thomas style invariants 'counting' (semi)stable coherent sheaves on Calabi-Yau 4-folds $Y$ over $\mathbb C$, which should be unchanged under deformations of $Y$.
description: (v2) 69 pages. Final version, to appear in Geometry and Topology
Investigation of validity, reliability, and practice effects of the Immediate Postconcussion Assessment and Cognitive Test (ImPACT) and traditional paper-pencil neuropsychological tests
Creators: name: Kontos, Daniel L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: The purpose of this study was to determine: 1) if an athlete’s age significantly affects neuropsychological test performance, 2) if an athlete’s performance remains consistent across serial neuropsychological tests, and 3) the concurrent validity of the Immediate Postconcussion and Cognitive Test (ImPACT) scores when compared to traditional paper-pencil test scores of similar cognitive domains. A healthy sample of 20 college and 20 high school athletes completed both ImPACT and traditional paper-pencil neuropsychological test batteries on three separate occasions. Means and standard deviations, 2x3 mixed model ANOVAs (age x session), reliability (ICC2,1) and precision (SEM) values, and linear regressions were calculated on outcome measures for both test batteries. The ANOVAs revealed significant main effects of age for the Trail Making Test Form B (TMT-B) total time and ImPACT processing speed composite score with college athletes performing better than high school students on both measures. The ANOVAs also revealed significant main effects of session for the Brief Visuospatial Memory Test – Revised (BVMT-R) total recalled (immediate and delayed), the TMT-B total time, Stroop Test total score, and ImPACT processing speed composite score. Reliability measures ranged from 0.12 to 0.72 with the majority of the outcome measures achieving a moderate level of reliability across testing iii sessions. Linear regressions revealed that ImPACT test scores had low levels of shared variance with select paper-pencil neuropsychological tests. Coefficients of determination for these linear regressions left much of the variance unexplained (52-88%). Only the ImPACT Three Letters average counted correctly reached a moderate level (R2=0.481). This study demonstrates the need of the clinician to understand the differences in neuropsychological test performance for athletes of different age groups and across serial neuropsychological tests. It is also recommended that caution be exhibited when evaluating ImPACT test results of athletes 15-17 and 19-21 as the concurrent validity has not been conclusively proven.
Staged Computation with Names and Necessity
Creators: name: Nanevski, Aleksandar
name: Pfenning, Frank
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Staging is a programming technique for dividing the computation in order to exploit the early availability of some arguments. In the early stages the program uses the available arguments to generate, at run time, the code for the late stages. A type system for staging should ensure that only well-typed expressions are generated, and that only expressions with no free variables are permitted for evaluation. In this paper, we present a calculus for staged computation in which code from the late stages is composed by splicing smaller code fragments into a larger context, possibly incurring capture of free variables. The type system ensures safety by tracking the names of free variables for each code fragment. The type system is based on the necessity operator [square, open] from constructive modal logic, which we index with a set of names C. Our type [square, open]CA classifies expressions of type A that belong to the late stage, and whose free names are in the set C.
Production and characterization of bio-oil from fluidized bed pyrolysis of olive stones, pinewood, and torrefied feedstock
Creators: name: Trubetskaya, Anna
name: Berg, Lukas von
name: Johnson, Robert
name: MOORE, SEAN
name: LEAHY, JAMES J
name: Han, Yinglin
name: Lange, Heiko
name: Anca-Couce, Andres
Publisher: name: University of Limerick
Year: 2023
Subjects: subject: Chemical sciences
subject: FOS: Chemical sciences
subject: Engineering

description: Advancements in fluidized bed pyrolysis mechanisms and analytical methodologies are critical for progress in the biorefinery sector in general and the aviation fuel sector in particular. The statistical modelling of pyrolysis product yields and composition allowed us to observe advantages of operating temperature and feedstock selections over the torrefaction process and catalyst addition in a fluidized bed reactor. Results suggest that the chemical composition and physical properties of bio-oil from pyrolysis of olive stones at 600◦C and pinewood pellets at 500◦C are the most suitable for use as fuels. This work suggests that only combined use of selected gas chromatography mass spectroscopy, UV fluorescence, nuclear magnetic resonance spectroscopy, and rheology can provide comprehensive information on pyrolysis bio-oil composition. Importantly from a technological point of view, bio-oil was characterized i) by a viscosity similar to that of fossil-based oil; ii) by a low oxygen and water content; and iii) by a balanced composition of aliphatic and aromatic species. These factors indicate that bio-oil from fluidized bed pyrolysis of biomasses is a promising material for use in the aviation industry and energy production.
Multichannel 0-to-2 and 1-to-2 transition amplitudes for arbitrary spin particles in a finite volume
Creators: name: Briceño, Raúl A.
name: Hansen, Maxwell T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present a model-independent, non-perturbative relation between finite-volume matrix elements and infinite-volume $\textbf{0}\rightarrow\textbf{2}$ and $\textbf{1}\rightarrow\textbf{2}$ transition amplitudes. Our result accommodates theories in which the final two-particle state is coupled to any number of other two-body channels, with all angular momentum states included. The derivation uses generic, fully relativistic field theory, and is exact up to exponentially suppressed corrections in the lightest particle mass times the box size. This work distinguishes itself from previous studies by accommodating particles with any intrinsic spin. To illustrate the utility of our general result, we discuss how it can be implemented for studies of $N+\mathcal{J}~\rightarrow~(Nπ,Nη,Nη',ΣK,ΛK)$ transitions, where $\mathcal{J}$ is a generic external current. The reduction of rotational symmetry, due to the cubic finite volume, manifests in this example through the mixing of S- and P-waves when the system has nonzero total momentum.
description: 23 pages, 5 figures
Two-layered logics for paraconsistent probabilities
Creators: name: Bilkova, Marta
name: Frittella, Sabine
name: Kozhemiachenko, Daniil
name: Majer, Ondrej
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics

description: We discuss two two-layered logics formalising reasoning with paraconsistent probabilities that combine the Lukasiewicz $[0,1]$-valued logic with Baaz $\triangle$ operator and the Belnap--Dunn logic.
Criteria for non-$k$-separability of $n$-partite quantum states
Creators: name: Ananth, N.
name: Chandrasekar, V. K.
name: Senthilvelan, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop separability criteria to identify non-$k$-separability $(k = 2,3,\ldots,n)$ and genuine multipartite entanglement in different classes of mixed $n$-partite quantum states using elements of density matrices. With the help of these criteria, we detect non-$k$-separability in $n$-qudit GHZ and W states respectively added with white noise. We also discuss the experimental implementation of our criteria by means of local observables.
description: 9 pages, accepted for publication in EPJD
Additional file 1 of Temporal tracking of microglial and monocyte single-cell transcriptomics in lethal flavivirus infection
Creators: name: Spiteri, Alanna G.
name: Wishart, Claire L.
name: Ni, Duan
name: Viengkhou, Barney
name: Macia, Laurence
name: Hofer, Markus J.
name: King, Nicholas J. C.
Publisher: name: figshare
Year: 2024
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1. Gating strategy used to sort microglia and MCs from mock- and WNV-infected mice for scRNA-seq analysis. Circulating monocytes were not identified, however, the presence of these cells is expected to be low in the brain due to transcardiac perfusion. Single-cell brain suspensions were sorted on the 10-laser Influx cell sorter using the FACSDiva Programme. Shown in the figure is a WNV-infected brain at dpi 7. H&Es of sorted microglia and MCs populations are shown with their respective gates.
Sparse Additive Models
Creators: name: Ravikumar, Pradeep
name: Lafferty, John
name: Liu, Han
name: Wasserman, Larry
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We present a new class of methods for high dimensional non-parametric regression and classification called sparse additive models. Our methods combine ideas from sparse linear modelling and additive non-parametric regression. We derive an algorithm for fitting the models that is practical and effective even when the number of covariates is larger than the sample size. Sparse additive models are essentially a functional version of the grouped lasso of Yuan and Lin. They are also closely related to the COSSO model of Lin and Zhang but decouple smoothing and sparsity, enabling the use of arbitrary non-parametric smoothers. We give an analysis of the theoretical properties of sparse additive models and present empirical results on synthetic and real data, showing that they can be effective in fitting sparse non-parametric models in high dimensional data.
Glycogen synthase kinase-3 is required for axon growth and development
Creators: name: Wang, Xinshuo
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: Glycogen Synthase Kinase-3 (GSK-3) is a critical downstream regulator in multiple signaling pathways including neurotrophin/PI3K and Wnt/[beta]-catenin pathways. GSK-3 signal has been strongly implicated in the regulation of neuronal polarity and axon growth in vitro. However, how GSK-3 is regulated and whether it is required for mammalian nervous system development is unknown. Here, I assessed the role of Par6 signaling in the regulation of GSK-3 activity and NGF-induced axon growth. My results show that Par6 is required for GSK-3 phosphorylation and inhibition. Elimination of Par6 inhibits NGF-induced axon growth. We have also generated nervous system specific GSK-3 knockout mice. By studying GSK-3 null cortical neurons, my results show that GSK-3 is required for axon growth in vivo and the deletion of GSK-3 mainly affects the microtubule dynamics which prevents the axon growth. We conclude that GSK-3 is a key regulator of axon growth and development both in vivo and in vitro.
Supplementary document for Design and simulation of high gain-bandwidth product InGaAs/AlGaAsSb avalanche photodiode with a p‑type hybrid absorption layer - 7400314.pdf
Creators: name: ZHU, Shujuan
name: WU, Bingchao
name: ZHANG, Yuanlong
name: xu, yun
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Revised supplemental document without tracked changes
Additional file 3 of Temporal tracking of microglial and monocyte single-cell transcriptomics in lethal flavivirus infection
Creators: name: Spiteri, Alanna G.
name: Wishart, Claire L.
name: Ni, Duan
name: Viengkhou, Barney
name: Macia, Laurence
name: Hofer, Markus J.
name: King, Nicholas J. C.
Publisher: name: figshare
Year: 2024
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 3. Trajectory analysis with Monocle3 and Slingshot. a Dot plot showing the expression of nominal microglia and MCs genes in microglia and MC clusters. b, c UMAP plots coloured by pseudotime, determined using trajectory analysis with Monocle3 on both microglia and MC clusters. MG1 (b) or MC1 (c) were used as the starting cells. Increased pseudotime indicates further distance from starting cells (i.e., MG1 and MC1). d, e UMAP plots showing two lineage trajectories on microglia clusters using Slingshot. MG1 was used as the starting cell cluster.
Meaningful Objects Segmentation from SAR Images via A Multi-Scale Non-Local Active Contour Model
Creators: name: Xia, Gui-Song
name: Liu, Gang
name: Yang, Wen
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The segmentation of synthetic aperture radar (SAR) images is a longstanding yet challenging task, not only because of the presence of speckle, but also due to the variations of surface backscattering properties in the images. Tremendous investigations have been made to eliminate the speckle effects for the segmentation of SAR images, while few work devotes to dealing with the variations of backscattering coefficients in the images. In order to overcome both the two difficulties, this paper presents a novel SAR image segmentation method by exploiting a multi-scale active contour model based on the non-local processing principle. More precisely, we first formulize the SAR segmentation problem with an active contour model by integrating the non-local interactions between pairs of patches inside and outside the segmented regions. Secondly, a multi-scale strategy is proposed to speed up the non-local active contour segmentation procedure and to avoid falling into local minimum for achieving more accurate segmentation results. Experimental results on simulated and real SAR images demonstrate the efficiency and feasibility of the proposed method: it can not only achieve precise segmentations for images with heavy speckles and non-local intensity variations, but also can be used for SAR images from different types of sensors.
Electronic Correlation-driven Exotic Quantum Phase Transitions in Infinite-layer Manganese Oxide
Creators: name: Jin, Heng
name: Huang, Bing
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Despite the intensive interest in copper- and nickel-based superconductivity in infinite-layer structures, the physical properties of many other infinite-layer transition-metal oxides remain largely unknown. Here we unveil, by the first-principles calculations, the electronic correlation-driven quantum phase transitions in infinite-layer SrMnO2, where spin and charge orders are strongly interwoven. At weak electronic correlation region, SrMnO2 is a ferromagnetic metal with anisotropic spin transportation, as a promising spin valve under room-temperature. At middle electronic correlation region, a structural transition accompanied by charge/bond disproportion occurs as a consequence of Fermi surface nesting, resulting in a ferromagnetic insulator with reduced Curie temperature. At strong electronic correlation region, another structural transition occurs that drives the system into degenerately antiferromagnetic insulators with tunable magnetic order by piezoelectricity, a new type of multiferroics. Therefore, infinite-layer SrMnO2 is possibly a unique system on the quantum critical point, where electronic correlation can induce noticeable Fermi surface evolutions and small perturbations can realize remarkable quantum phase transitions.
description: 10 pages, 4 figures
Spike train analysis for single trial data
Creators: name: Romero, Richard
name: Lee, Tai Sing
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Traditional methods in neural data analysis are not appropriate for analyzing the spike train of a single experimental trial. We show that, by constructing a model of firing statistics, a more accurate estimate of the firing rate for a single spike train can be obtained. The model is based on the assumption that the neuron's spikes are generated by a non-homogeneous Poisson process which follows Markovian dynamics. We test the method by reconstructing the input stimulus based on the neurons’ responses either on the raw spike data or the firing rate estimate. The spike data were recorded from macaque V1 neurons in response to a sinewave grating undergoing pseudo-random walk. For a large percentage of the cells studied, the reconstruction is significantly improved by using the estimated firing rate over the raw spikes, suggesting that estimated rate reflects more accurately the underlying state of the neurons.
Weakly damped bosons and precursor gap in the vicinity of an antiferromagnetic metallic transition
Creators: name: Grossman, Ori
name: Berg, Erez
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the electronic spectral function of a metal in the vicinity of an antiferromagnetic (AFM) quantum critical point, focusing on a situation where the bare bandwidth of the spin fluctuations is significantly smaller than the Fermi energy. In this limit, we identify a range of energies where the fermionic quasiparticles near the "hot spots'' on the Fermi surface are strongly scattered by the quantum critical fluctuations, whereas the damping of the AFM fluctuations by the electrons is negligible. Within a one-loop approximation, there is a parameter range where the $T=0$ spectral function at the hot spots has a "precursor gap'' feature, with a local maximum at a finite frequency. However, the ratio of the bare spin wave velocity to the Fermi velocity required to obtain a precursor gap is probably too small to explain experiments in the electron-doped cuprate superconductors (He et al., Proc. Natl. Acad. Sci 116, 3449 (2019)). At lower frequencies, the Landau damping of the AFM fluctuations becomes important, and the electronic spectral function has the familiar $ω^{-1/2}$ singularity. Our one-loop perturbative results are supported by a numerical Monte Carlo simulation of electrons coupled to an undamped, nearly-critical AFM mode.
Social Behavior in Bacterial Nanonetworks: Challenges and Opportunities
Creators: name: Hasan, Monowar
name: Hossain, Ekram
name: Balasubramaniam, Sasitharan
name: Koucheryavy, Yevgeni
Publisher: name: arXiv
Year: 2014
Subjects: subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: Molecular communication promises to enable communication between nanomachines with a view to increasing their functionalities and open up new possible applications. Due to some of the biological properties, bacteria have been proposed as a possible information carrier for molecular communication, and the corresponding communication networks are known as \textit{bacterial nanonetworks}. The biological properties include the ability for bacteria to mobilize between locations and carry the information encoded in Deoxyribonucleic Acid (DNA) molecules. However, similar to most organisms, bacteria have complex social properties that govern their colony. These social characteristics enable the bacteria to evolve through various fluctuating environmental conditions by utilizing cooperative and non-cooperative behaviors. This article provides an overview of the different types of cooperative and non-cooperative social behavior of bacteria. The challenges (due to non-cooperation) and the opportunities (due to cooperation) these behaviors can bring to the reliability of communication in bacterial nanonetworks are also discussed. Finally, simulation results on the impact of bacterial cooperative social behavior on the end-to-end reliability of a single-link bacterial nanonetwork are presented. The article concludes with highlighting the potential future research opportunities in this emerging field.
description: Accepted for publication in IEEE Network Magazine as an open call article
Helminthia piliferum Hayek
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: 233. H. piliferum Hoppe em. Hayek (H. glanduliferum Hoppe em.) Cat. 230. A. PiUfenun (N.P.) (Schraderi [Schleicher]Z.) l. Ssp. piliferum (Hoppe) Hayek (ssp. eu-piliferumZ.) Var.normale (N. P.) Forma verum (N.P.) - In allen Distrikten verbreitet, von etwa 1900m bis in die Schneestufe. Forma latifolium (N.P.) - Mit dem Typus hier und da,nicht häufig. Forma brevipilum (N.P.) - l: Salanfe und Suzanfe (Briquet). - 3: Riffelalp ob Zermatt (nach Z.); Simplon (Wolf). - 4: Feldbachtal im Binntal (Schmidely). Forma ramiferum (Gremli) - 3: Nicht selten mit dem Typus. - 3a:Zwischbergen (Chenevard). - 4: Grimsel (Chenevard). Var.Schraderi(Schleicher) (var. eu-Schraderi Z.) - l: Col du Jorat ob Salanfe (P.). - 2: Barma Neira im Tal der Lizerne (E. Steiger). - 3 und Südtäler von 4: Zerstreut verbreitet vom Catogne bis zum Eginental. Var. calvifolium (N.P.) - 3: Alpen des obern Saastals (A. Keller). - 4:Rappental (B. C.W.). Var.tubuliflorum N.P.- l: Salanfe(Briquet). - 2: «Sitten» (nach N.F.). - 3:Gr. St. Bernhard (Wolf); Mattmark (Chenevard); Simplon (Gremli). - 4: Eginental (Lagger, E.Steiger); Gletsch (E.Steiger); Furka-Passhöhe (Arbenz). - Mit dem Typus wohl auch anderwärts. Var. opeolepium (N. P.) - 3: Gr. St. Bernhard (Wolf); Simplon (idem). - 4:Merezenbachalp (Nägeli); Eginental (idem). Var. gracilisquamum (N. P.) - l: Ob Emosson (Coquoz). - 3: La Peula im Val Ferret (Wilczek); ob Randa am Weg zur Domhütte (Huber); Mattmark (Christ). - 4: Binntal (Lagger). 2. Ssp.amphigenum(A. -T. et Briq.) Z. (H. gland. ssp. piliferum var. multiglandulum N.P.) Var. multiglandulum (N. P.) In allen Distrikten verbreitet; von etwa 2000 m bis zur Schneegrenze. Die Formen von ssp. piliferum var. normale wiederholen sich. Var. fuliginatum (Hüter et Gander) - 3: Gr. St. Bernhard (Wolf); Corbassiere (J.); Pierre ä Voir (Miller); Simplon (J.Muret). - 4:Feldbachtal im Binntal (Schmidely).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Catalog of revised astrophysical parameters from Gaia DR2
Creators: name: Fouesneau, Morgan
Publisher: name: Zenodo
Year: 2019

description: Gaia DR2 offers us a first glimpse at the most detailed view of the dynamics of field star populations in our Galaxy. However; knowledge of the stellar properties of these populations is critical to understanding fully the Milky-Way‚Äôs formation and evolution. We present an all-sky uniformly derived catalog of stellar astrophysical parameters for hundreds of millions of stars implementing our data processing of the next Gaia data release. As the DR3 BP/RP spectra are not yet available; we combined measurements of Gaia integrated photometry with GALEX; 2MASS; and WISE photometry; where available as an alternative to cover a large wavelength range. We obtain the posterior probability distribution of stellar properties such as age; mass; temperature; bolometric luminosity; distance; and dust extinction by fitting these sets of SEDs with evolutionary models; taking advantage of the GDR2 parallaxes to uniquely link atmospheric parameters to absolute bolometric luminosities. This catalog bridges the gap between the content of GDR2 and the future GDR3 which will provide stellar parameters using Gaia data alone. This represents a key first step to anchor all current and future spectroscopic surveys to a common ground and provide us with the most comprehensive view of our Galaxy.
Solving SDD linear systems in time Õ (m log n log (1/ϵ))
Creators: name: Koutis, Ioannis
name: Miller, Gary L.
name: Peng, Richard
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We present an improved algorithm for solving symmetrically diagonally dominant linear systems. On input of an n×n symmetric diagonally dominant matrix A with m non-zero entries and a vector b such that Ax̅ = b for some (unknown) vector x̅, our algorithm computes a vector x such that ∥x-x̅∥A≤ϵ∥x̅∥A1in time Õ (m log n log (1/ϵ))2. The solver utilizes in a standard way a 'preconditioning' chain of progressively sparser graphs. To claim the faster running time we make a two-fold improvement in the algorithm for constructing the chain. The new chain exploits previously unknown properties of the graph sparsification algorithm given in [Koutis,Miller,Peng, FOCS 2010], allowing for stronger preconditioning properties.We also present an algorithm of independent interest that constructs nearly-tight low-stretch spanning trees in time Õ (m log n), a factor of O (log n) faster than the algorithm in [Abraham,Bartal,Neiman, FOCS 2008]. This speedup directly reflects on the construction time of the preconditioning chain.
Primordial Gravitational Waves in Running Vacuum Cosmologies
Creators: name: Tamayo, D. A.
name: Lima, J. A. S.
name: Alves, M. E. S.
name: de Araujo, J. C. N.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the cosmological production of gravitational waves in a nonsingular flat cosmology powered by a "running vacuum" energy density described by $ρ_Λ\equivρ_Λ(H)$, a phenomenological expression potentially linked with the renormalization group approach in quantum field theory in curved spacetimes. The model can be interpreted as a particular case of the class recently discussed by Perico et al. (Phys. Rev. D {\bf 88}, 063531, 2013) which is termed complete in the sense that the cosmic evolution occurs between two extreme de Sitter stages (early and late time de Sitter phases). {The gravitational wave equation is derived and its time-dependent part numerically integrated since the primordial de Sitter stage. The generated spectrum of gravitons is also compared with the standard calculations where an abrupt transition, from the early de Sitter to the radiation phase, is usually assumed.} It is found that the stochastic background of gravitons is very similar to the one predicted by the cosmic concordance model plus inflation except at higher frequencies ($ν\gtrsim 100$ kHz). This remarkable signature of a "running vacuum" cosmology combined with the proposed high frequency gravitational wave detectors and measurements of the CMB polarization (B-modes) may provide a new window to confront more conventional models of inflation.
description: 13 pages, 4 figures, uses latex, title changed. Other corrections in agreement with the accepted version in Astroparticle Physics
Non-equilibrium steady states of long-range coupled harmonic chains
Creators: name: Andreucci, Francesco
name: Lepri, Stefano
name: Ruffo, Stefano
name: Trombettoni, Andrea
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We perform a numerical study of transport properties of a one-dimensional chain with couplings decaying as an inverse power $r^{-(1+σ)}$ of the intersite distance $r$ and open boundary conditions, interacting with two heat reservoirs. Despite its simplicity, the model displays highly nontrivial features in the strong long-range regime, $-1<σ<0$. At weak coupling with the reservoirs, the energy flux departs from the predictions of perturbative theory and displays anomalous superdiffusive scaling of the heat current with the chain size. We trace back this behavior to the transmission spectrum of the chain, which displays a self-similar structure with a characteristic sigma-dependent fractal dimension.
description: 9 pages, 8 figures
Inflation Reduction Act impacts on the economics of clean hydrogen and liquid fuels
Creators: name: Cheng, Fangwei
name: Luo, Hongxi
name: Jenkins, Jesse D.
name: Larson, Eric D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The Inflation Reduction Act (IRA) in the United States provides unprecedented incentives for deploying low-carbon hydrogen and liquid fuels, among other low greenhouse gas (GHG) emissions technologies. To better understand the prospective competitiveness of low-carbon or negative-carbon hydrogen and liquid fuels under the IRA in the early 2030s, we examine the impacts of IRA provisions on costs of producing hydrogen and synthetic liquid fuel made from natural gas, electricity, short-cycle biomass (agricultural residues), and corn-ethanol. With IRA credits (45V or 45Q), but excluding incentives provided by other national or state policies, hydrogen produced by electrolysis using carbon-free electricity (green H2) and natural gas reforming with carbon capture and storage (CCS) (blue H2) are cost-competitive with the carbon-intensive benchmark gray H2 from steam methane reforming. Biomass-derived H2 with or without CCS is not cost-completive under current IRA provisions. However, if IRA allowed biomass gasification with CCS to claim a 45V credit for carbon-neutral H2 and a 45Q credit for negative biogenic-CO2 emissions, this pathway would be less costly than gray H2. The IRA credit for clean fuels (45Z), currently stipulated to end in 2027, would need to be extended, or similar policy support provided by other national or state policies, for clean synthetic liquid fuel to be cost-competitive with petroleum-derived liquid fuels. Levelized IRA subsidies per unit of CO2 mitigated for all hydrogen and synthetic liquid fuel production pathways, except electricity-derived synthetic liquid fuel, range from 65 to 384 $/t CO2, which is within or below the range in U.S. federal government estimates of the Social Cost of Carbon (SCC) in the 2030 to 2040 timeframe.
Specifications as search keys for software libraries : a case study using Lambda Prolog
Creators: name: Rollins, Eugene J.
name: Wing, Jeannette Marie.
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Abstract: "Searching through a large repository of objects can be a tedious activity if a user cannot easily identify the object of interest. In the context of software development, we describe a method of searching through program libraries using specification matching. We use signature information along with pre- and post-condition specifications as search keys to increase the recall and precision of a query. This paper details a case study of specification matching where we use Lambda Prolog as our specification and query language and higher-order unification to retrieve from a library of ML functions. We discuss the significance of specification matching in general and point out some open issues."
The relationship between adolescent technology use and depressive symptoms: an integrative model of offline and technology-based risk factors
Creators: name: Nesi, Jacqueline
Publisher: name: University of North Carolina at Chapel Hill
Year: 2014

description: This study examined the role that specific technology-based behaviors (social comparison and interpersonal feedback-seeking) and offline individual characteristics may play in the relationship between frequent technology use and depressive symptoms among adolescents. A total of 702 students (57% female; ages 12 to 16) completed self-report questionnaires at two time points. Adolescents reported on levels of depressive symptoms at baseline, and one year later on depressive symptoms, frequency of technology use (cell phones, Facebook, and Instagram), excessive reassurance-seeking, technology-based social comparison and feedback-seeking, and sociometric nominations of popularity. Consistent with hypotheses, path analyses supported a complex moderated mediation model of the longitudinal relationship between frequent technology use and depressive symptoms, whereby gender and popularity served as moderators and technology-based behaviors served as mediators. Effects were found above and beyond the effects of offline excessive reassurance seeking and prior depressive symptoms. Findings highlight the utility of examining psychological outcomes of adolescent's technology use within the framework of existing interpersonal models of adolescent depression and suggest the importance of more nuanced approaches to the study of adolescents' media use.
On the critical amplitude in oscillating rolling element bearings
Creators: name: Schwack, Fabian
name: Schneider, Volker
name: Wandel, Sebastian
name: De La Presilla, Román José
name: Poll, Gerhard
name: Glavatskih, Sergei
Publisher: name: Amsterdam [u.a.] : Elsevier Science
Year: 2021
Subjects: subject: Contact kinematics
subject: False brinelling
subject: Fretting corrosion
subject: Simulation
subject: Wear
subject: Wear prevention
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: Small oscillating amplitudes (~0. 1°) and larger (> 1°) can both lead to wear, w hich complicates the evaluation of the operating conditions. In this work, a simulation model is used to discuss critical amplitudes. The parametric study, which includes 125 simulations, shows the effect of load and coefficient of friction on the frictional work density for amplitudes ranging from 0.1 to 2.5°. The study concludes that the frictional work density increases with the oscillating amplitude up to a certain point, where it becomes almost constant in relation to the amplitude. This point is reached when the amplitude is so large that a continuous overlapping of the contact zone no longer occurs. It is precisely this point that marks the critical oscillation amplitude.
Empirical formulae for the influence of real film thickness distribution on the capacitance of an EHL point contact and application to rolling bearings
Creators: name: Schneider, Volker
name: Liu, Hai-Chao
name: Bader, Norbert
name: Furtmann, Alexander
name: Poll, Gerhard
Publisher: name: Amsterdam [u.a.] : Elsevier Science
Year: 2020
Subjects: subject: Bearing current
subject: Capacitance
subject: EHL
subject: Rolling bearing
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: Electrical bearing capacitance plays an important role in the prediction of harmful bearing currents, which could lead to premature failure of the bearing and the entire drive system. The effect of rolling speed, force, and material parameters on the electrical capacitance of an elliptical contact in elastohydrodynamic lubrication has been studied numerically. An empirical equation that describes the relationship between the areas of central film thickness and minimum film thickness of the HERTZ'ian contact area has been derived. Additional, another formula to calculate the total capacitance of a rolling bearing, based only on the HERTZ'ian contact capacitance with the central film thickness as single parameter, has been developed. Finally, a comparison was made between the calculated capacities and measured values.
Octet baryon isovector charges from $N_f = 2 + 1$ lattice QCD
Creators: name: Bali, Gunnar S.
name: Collins, Sara
name: Heybrock, Simon
name: Löffler, Marius
name: Rödl, Rudolf
name: Söldner, Wolfgang
name: Weishäupl, Simon
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We determine the axial, scalar and tensor isovector charges of the nucleon, sigma and cascade baryons as well as the difference between the up and down quark masses, $m_u-m_d$. We employ gauge ensembles with $N_f=2+1$ non-perturbatively improved Wilson fermions at six values of the lattice spacing in the range $a\approx (0.039 - 0.098) \,$fm, generated by the Coordinated Lattice Simulations (CLS) effort. The pion mass $M_π$ ranges from around $430 \, $MeV down to a near physical value of $130 \, $MeV and the linear spatial lattice extent $L$ varies from $6.5\,M_π^{-1}$ to $3.0\,M_π^{-1}$, where $L M_π\geq 4$ for the majority of the ensembles. This allows us to perform a controlled interpolation/extrapolation of the charges to the physical mass point in the infinite volume and continuum limit. Investigating SU(3) flavour symmetry, we find moderate symmetry breaking effects for the axial charges at the physical quark mass point, while no significant effects are found for the other charges within current uncertainties.
description: 47 pages, 47 figures: v2: minor typos corrected, references added, some figures updated; v3: updated Fig. 11, version published in PRD
TEEN PREGNANCY ON THE OIL ROAD: SOCIAL DETERMINANTS OF TEEN PREGNANCY IN AN INDIGENOUS COMMUNITY OF THE ECUADORIAN AMAZON
Creators: name: Alban, Dayuma
Publisher: name: University of North Carolina at Chapel Hill Graduate School
Year: 2015
Subjects: Gender identity
Ethnology

description: Teen pregnancy in the Waorani community is related to traditional marriage patterns. Nevertheless, it is currently influenced by the context of oil exploitation and its correlation with development and modernity. Before the colonization of their territory and through the present day, some women under 19 years of age began to have children, within socially recognized marriages arranged by older people. Teen pregnancy in the community currently takes place both within and outside of marriage. Oil extraction and development has led to a number of social transformations that affect gender roles, produce changes in forms of being an adult, and the experience of teen pregnancy, through three ways: increased wage labor; insertion into formal education; modernization and development of the community. Oil extraction, which is connected with the demands of the world economic system, is not only shaping the national Ecuadorian economy, but also impacting local communities in significant ways, with effects on intimate relationships and marriage, gender roles, women's bodies, and cultural conceptions of adolescence, adulthood, and fertility.
Electron energy loss and angular asymmetry induced by elastic scattering in helium droplets
Creators: name: Asmussen, Jakob D.
name: Sishodia, Keshav
name: Bastian, Björn
name: Abid, Abdul R.
name: Ltaief, Ltaief Ben
name: Pedersen, Henrik B.
name: De, Subhendu
name: Medina, Christian
name: Pal, Nitish
name: Richter, Robert
name: Fennel, Thomas
name: Krishnan, Sivarama
name: Mudrich, Marcel
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: Helium nanodroplets are ideal model systems to unravel the complex interaction of condensed matter with ionizing radiation. Here we study the effect of purely elastic electron scattering on angular and energy distributions of photoelectrons emitted from He nanodroplets of variable size ($10$-$10^9$ atoms per droplets). For large droplets, photoelectrons develop a pronounced anisotropy along the incident light beam due to a shadowing effect within the droplets. In contrast, the detected photoelectron spectra are only weakly perturbed. This opens up possibilities for photoelectron spectroscopy of dopants embedded in droplets provided they are smaller than the penetration depth of the light and the trapping range of emitted electrons.
Fermi Orbital Derivatives in Self-Interaction Corrected Density Functional Theory: Applications to Closed Shell Atoms
Creators: name: Pederson, Mark R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A recent modification of the Perdew-Zunger self-interaction-correction (SIC) to the density-functional formalism (Pederson, Ruzsinszky, Perdew) has provided a framework for explicitly restoring unitary invariance to the expression for the total energy. The formalism depends upon construction of Lowdin orthonormalized Fermi-orbitals (Luken et al) which parametrically depend on variational quasi-classical electronic positions. Derivatives of these quasi-classical electronic positions, required for efficient minimization of the self-interaction corrected energy, are derived and tested here on atoms. Total energies and ionization energies in closed-shell atoms, where correlation is less important, using the PW92 LDA functional are in very good to excellent agreement with experiment and non-relativistic Quantum-Monte-Carlo (QMC) results.
description: 14 pages. On figure
Anschluss an die Research Data Commons: Anbieter von Daten und Diensten vernetzen
Creators: name: Kostadinov, Ivaylo
name: Pfaff, Claas-Thido
name: Triebel, Dagmar
Publisher: name: Zenodo
Year: 2023
Subjects: AllHands4Biodiv

description: Ein zentrales Ziel des NFDI4Biodiversity Konsortiums ist, einen einheitlichen Zugang zu heterogenen Biodiversitätsdaten zu ermöglichen. Dafür arbeiten wir zurzeit an drei konkrete Themen: Daten aus heterogenen Quellen einheitlich in die cloud-basierte Infrastruktur, namens Research Data Commons, importieren. Datenprovidern ermöglichen standardisierte Schnittstellen (APIs) für Data Harvesting zu implementieren. Notwendige Prozesse für die Extraktion, ggf. Transformation und für das Laden (ETL) der Daten implementieren.
Additional file 10 of Temporal tracking of microglial and monocyte single-cell transcriptomics in lethal flavivirus infection
Creators: name: Spiteri, Alanna G.
name: Wishart, Claire L.
name: Ni, Duan
name: Viengkhou, Barney
name: Macia, Laurence
name: Hofer, Markus J.
name: King, Nicholas J. C.
Publisher: name: figshare
Year: 2024
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 10. Expression of select genes in whole brains of mock- and WNV-infected mice treated with PLX5622 or anti-Ly6C. Gene expression was determined by qPCR and normalised to the housekeeping gene, Rpl13a. Mice were fed PLX5622 for 21 days prior to infection and until dpi 5 or 7. Anti-Ly6C was injected on dpi 5 and 6. Data is presented as mean ± SEM from 1-3 independent experiments with at least 4 mice per group.