cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fluctuation-induced forces between rings threaded around a polymer chain under tension
Creators: name: Gilles, F. M.
name: Llubaroff, R.
name: Pastorino, C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We characterize the fluctuation properties of a polymer chain under external tension and the fluctuation-induced forces between two ring molecules threaded around the chain. The problem is relevant in the context of fluctuation-induced forces in soft matter systems, features of liquid interfaces and to describe properties of polyrotaxanes and slide-ring materials. We perform molecular dynamics simulations of the Kremer-Grest bead-spring model for the polymer and a simple ring-molecule model, in the canonical ensemble. We study transverse fluctuations of the stretched chain, as a function of chain stretching and in the presence of ring-shaped threaded molecules. The fluctuation spectra of the chains are analyzed in equilibrium at constant temperature and the differences in presence of two ring molecules are compared. For the rings located at fixed distances, we find an attractive fluctuation-induced force between the rings, proportional to the temperature and decaying with the ring distance. We characterize this force as a function of ring distance, chain stretching, ring radius and measure the differences between the free chain spectrum and the fluctuations of the chain constrained by the rings. We also compare the dependence and range of the force found in the simulations with theoretical models coming from different fields.
description: 12 pages, 17 figures. Accepted for publication in Physical Review E
Additional file 2 of SUPPRESSOR OF PHYTOCHROME B-4 #3 reduces the expression of PIF-activated genes and increases expression of growth repressors to regulate hypocotyl elongation in short days
Creators: name: Jacques, Caitlin N.
name: Favero, David S.
name: Kawamura, Ayako
name: Suzuki, Takamasa
name: Sugimoto, Keiko
name: Neff, Michael M.
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Supplementary Table 2. The fold change of PIF-target genes from Figure 2. Logfc indicates log2 difference in gene expression between sob3-6 and SOB3-D seedlings. Highlighted values denote transcripts that are differentially regulated between the two genotypes for the given time point as indicated by a p-value (FDR-adjusted p-value) < 0.05
Additional file 4 of SUPPRESSOR OF PHYTOCHROME B-4 #3 reduces the expression of PIF-activated genes and increases expression of growth repressors to regulate hypocotyl elongation in short days
Creators: name: Jacques, Caitlin N.
name: Favero, David S.
name: Kawamura, Ayako
name: Suzuki, Takamasa
name: Sugimoto, Keiko
name: Neff, Michael M.
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Supplementary Table 4. Binding of SOB3, based on the ChIP-seq data, to AHL-repressed or AHL-induced genes named in Fig. 2B or 2C, respectively. * = bound by SOB3 in one rep; ** = bound by SOB3 in two reps; *** = bound by SOB3 in three reps. Blue highlighting indicates the gene is counted as a SOB3-bound gene at that time point (i.e. it was bound in at least 2 ChIP-seq reps). “binds uORF” indicates that although annotation using HOMER did not detect the gene as bound by SOB3 (i.e. the gene’s TSS was not the closest TSS to any SOB3 ChIP-seq peak), a uORF located just upstream of the gene was identified as SOB3-bound.
Additional file 5 of SUPPRESSOR OF PHYTOCHROME B-4 #3 reduces the expression of PIF-activated genes and increases expression of growth repressors to regulate hypocotyl elongation in short days
Creators: name: Jacques, Caitlin N.
name: Favero, David S.
name: Kawamura, Ayako
name: Suzuki, Takamasa
name: Sugimoto, Keiko
name: Neff, Michael M.
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Supplementary Figure 1. Binding of SOB3 to loci associated with BES1 (A), CPD (B), BBX22 (C), or PIF4 (D) based on the ChIP-seq data generated from ProSOB3::SOB3-GFP sob3-4 seedlings harvested at ZT4, ZT9, or ZT24. Plots show relative fold enrichment in the ChIP samples compared to their respective input controls.
Supplementary files from Dominance of photo over chromatic acclimation strategies by habitat-forming mesophotic red algae
Creators: name: Voerman, Sofie E.
name: Marsh, Beauregard C.
name: Bahia, Ricardo G.
name: Pereira-Filho, Guilherme H.
name: Becker, Ana Clara F.
name: Amado-Filho, Gilberto M.
name: Ruseckas, Arvydas
name: Turnbull, Graham A.
name: Samuel, Ifor D. W.
name: Burdett, Heidi L.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Environmental Science
subject: Plant Biology

description: Figures S1-S2 and Tables S1-S5
Pathways to self-organization: crystallization via nucleation and growth
Creators: name: Jungblut, Swetlana
name: Dellago, Christoph
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Crystallization, a prototypical self-organization process during which a disordered state spontaneously transforms into a crystal characterized by a regular arrangement of its building blocks, usually proceeds by nucleation and growth. In the initial stages of the transformation, a localized nucleus of the new phase forms in the old one due to a random fluctuation. Most of these nuclei disappear after a short time, but rarely a crystalline embryo may reach a critical size after which further growth becomes thermodynamically favorable and the entire system is converted into the new phase. In these lecture notes, we will discuss several theoretical concepts and computational methods to study crystallization. More specifically, we will address the rare event problem arising in the simulation of nucleation processes and explain how to calculate nucleation rates accurately. Particular attention is directed towards discussing statistical tools to analyze crystallization trajectories and identify the transition mechanism.
Optimal convection cooling flows in general geometries
Creators: name: Alben, Silas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We generalize a recent method for computing optimal 2D convection cooling flows in a horizontal layer to a wide range of geometries, including those relevant for technological applications. We write the problem in a conformal pair of coordinates which are the pure conduction temperature and its harmonic conjugate. We find optimal flows for cooling a cylinder in an annular domain, a hot plate embedded in a cold surface, and a channel with hot interior and cold exterior. With a constraint of fixed kinetic energy, the optimal flows are all essentially the same in the conformal coordinates. In the physical coordinates, they consist of vortices ranging in size from the length of the hot surface to a small cutoff length at the interface of the hot and cold surfaces. With the constraint of fixed enstrophy (or fixed rate of viscous dissipation), a geometry-dependent metric factor appears in the equations. The conformal coordinates are useful here because they map the problems to a rectangular domain, facilitating numerical solutions. With a small enstrophy budget, the optimal flows are dominated by vortices which have the same size as the flow domain.
description: 23 pages, 11 figures
Additional file 6 of SUPPRESSOR OF PHYTOCHROME B-4 #3 reduces the expression of PIF-activated genes and increases expression of growth repressors to regulate hypocotyl elongation in short days
Creators: name: Jacques, Caitlin N.
name: Favero, David S.
name: Kawamura, Ayako
name: Suzuki, Takamasa
name: Sugimoto, Keiko
name: Neff, Michael M.
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 6: Supplementary Figure 2. Relative binding of SOB3, based on the ChIP-seq data generated from ProSOB3::SOB3-GFP sob3-4 seedlings harvested at ZT4, ZT9, or ZT24, to genes identified as induced or repressed by AHLs at only a single time point from the RNA-seq data for SOB3-D and sob3-6. (A) Relative binding of SOB3 to genes identified as repressed (left) or induced (right) by AHLs only at ZT4. (B) Relative binding of SOB3 to genes identified as repressed (left) or induced (right) by AHLs only at ZT9. (C) Relative binding of SOB3 to genes identified as repressed (left) or induced (right) by AHLs only at ZT24.
Additional file 7 of SUPPRESSOR OF PHYTOCHROME B-4 #3 reduces the expression of PIF-activated genes and increases expression of growth repressors to regulate hypocotyl elongation in short days
Creators: name: Jacques, Caitlin N.
name: Favero, David S.
name: Kawamura, Ayako
name: Suzuki, Takamasa
name: Sugimoto, Keiko
name: Neff, Michael M.
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 7: Supplementary Figure 3. Relative binding of SOB3, based on the ChIP-seq data generated from ProSOB3::SOB3-GFP sob3-4 seedlings harvested at ZT4, ZT9, or ZT24, to genes identified as induced or repressed by AHLs at only two time points from the RNA-seq data for SOB3-D and sob3-6. (A) Relative binding of SOB3 to genes identified as repressed (left) or induced (right) by AHLs at ZT4 and ZT9 but not at ZT24. (B) Relative binding of SOB3 to genes identified as repressed (left) or induced (right) by AHLs at ZT4 and ZT24 but not at ZT9. (C) Relative binding of SOB3 to genes identified as repressed (left) or induced (right) by AHLs at ZT9 and ZT24 but not at ZT4.
Investigation of the light four-quark states with exotic $J^{PC}=0^{--}$
Creators: name: Huang, Zhuo-Ran
name: Chen, Wei
name: Steele, T. G.
name: Zhang, Zhu-Feng
name: Jin, Hong-Ying
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study the exotic $J^{PC}=0^{--}$ four-quark states in Laplace sum rules (LSR) and finite energy sum rules (FESR). We use the vector tetraquark-like currents as interpolating currents in the correlator, from which the $1^{+-}$ states are also studied. In the mass extraction, we use the standard stability criterion with respect to the Borel parameters and the QCD continuum thresholds and consider the effect of the violation of factorization in estimating the high dimensional condensates as a source of uncertainties. The obtained mass prediction $1.66\pm0.14$ GeV is much lower than the previous sum rule predictions obtained using the scalar currents. Our result favours the four-quark interpretation of the possible $ρπ$ dominance in the $D^0$ decay. We also discuss the possible decay patterns of these exotic four-quark states.
description: 10 pages, 8 figures. Comments and suggestions are welcome
Dynamic multiscaling in magnetohydrodynamic turbulence
Creators: name: Ray, Samriddhi Sankar
name: Sahoo, Ganapati
name: Pandit, Rahul
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We present the first study of the multiscaling of time-dependent velocity and magnetic-field structure functions in homogeneous, isotropic magnetohydrodynamic (MHD) turbulence in three dimensions. We generalize the formalism that has been developed for analogous studies of time-dependent structure functions in fluid turbulence to MHD. By carrying out detailed numerical studies of such time-dependent structure functions in a shell model for three-dimensional MHD turbulence, we obtain both equal-time and dynamic scaling exponents.
description: 9 pages; 5 figures; Published in Phys. Rev. E
Stellar populations in the Carina region: The Galactic plane at l = 291
Creators: name: Molina-Lera, J. A.
name: Baume, G.
name: Gamen, R.
name: Costa, E.
name: Carraro, G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Previous studies of the Carina region have revealed its complexity and richness as well as a significant number of early-type stars. In many cases, these studies only concentrated on the central region or were not homogeneous. This latter aspect, in particular, is crucial because very different ages and distances for key clusters have been claimed in recent years. The aim of this work is to study in detail an area of the Galactic plane in Carina. We analyze the properties of different stellar populations and focus on a sample of open clusters and their population of YSOs and highly reddened early stars. We also studied the stellar mass distribution in these clusters and the possible scenario of their formation. Finally, we outline the Galactic spiral structure in this direction. We obtained photometric data for six young open clusters located in Carina at l = 291, and their adjacent stellar fields, which we complemented with spectroscopic observations of a few selected targets. We also culled additional information from the literature. Our results provide more reliable estimates of distances, color excesses, masses, and ages of the stellar populations in this direction. We estimate the basic parameters of the studied clusters and find that they identify two overdensities of young stellar populations. We find evidence of PMS populations inside them, with an apparent coeval stellar formation in the most conspicuous clusters. We also discuss apparent age and distance gradients in the direction NW-SE. We study the mass distributions of several clusters in the region. They consistently show a canonical IMF slope. We discover and characterise an abnormally reddened massive stellar population. Spectroscopic observations of ten stars of this latter population show that all selected targets were massive OB stars. Their location is consistent with the position of the Car-Sag spiral arm.
description: 15 pages, 13 figures
Additional file 2 of Southeast Asian clearwing moths buzz like their model bees
Creators: name: Skowron Volponi, Marta
name: Casacci, Luca Pietro
name: Volponi, Paolo
name: Barbero, Francesca
Publisher: name: figshare
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Zoology

description: Additional file 2: Tables S1-S8 showing results of multiple comparisons of means of the tested acoustical parameters and Variable importance in projection (VIP) scores for the first two components obtained from the PLS-DA analysis. Supplementary Figure S1 showing fore- and hindwing contours of the two clearwing moth species (mimics), H. pahangensis and H. hyaloptera, of the bee T. collina (model) and of A. florea bee, used as control in our work.
How the kinematics of massive stars can constrain the birth conditions of massive stars
Creators: name: Stoop, Mitchel
Publisher: name: Zenodo
Year: 2023

description: Young massive clusters provide an ideal place to study the outcome of the star-formation process and the early dynamics of star clusters. With Gaia (E)DR3, we have studied the young massive clusters NGC 6611 in the Eagle Nebula (M16) and NGC 6618 in the Omega Nebula (M17). We determine membership and age of the cluster and search for stars that may have originated in the cluster. For NGC 6611, we find that the stellar population has an age = 1.3 ± 0.2 Myr. NGC 6618 is heavily extincted (A_V ~ 5 to 15 mag) and is likely younger than 1 Myr. We find that both NGC 6611 and NGC 6618 have ejected a significant fraction (~ 33%) of their original O star members within the first Myr through dynamical interactions. These O runaways can be traced back to the centre of their parent cluster, with kinematic ages consistent with the isochrone age of the cluster. This provides evidence that the kinematic ages of dynamically ejected runaways can be used as an indicator for the age of a cluster. These results indicate that dynamical interactions play an important role in the early evolution of young massive clusters. The runaways can be used to constrain the birth conditions of massive stars in star clusters. We also give an outlook on future studies of young massive clusters.
Signatures of Steady Heating in Time Lag Analysis of Coronal Emission
Creators: name: Viall, Nicholeen M.
name: Klimchuk, James A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Among the many ways of investigating coronal heating, the time lag method of Viall & Klimchuk (2012) is becoming increasingly prevalent as an analysis technique complementary to those traditionally used. The time lag method cross correlates light curves at a given spatial location obtained in spectral bands that sample different temperature plasmas. It has been used most extensively with data from the Atmospheric Imaging Assembly on the Solar Dynamics Observatory. We have previously applied the time lag method to entire active regions and surrounding quiet Sun and create maps of the results (Viall & Klimchuk 2012; Viall & Klimchuk 2015). We find that the majority of time lags are consistent with the cooling of coronal plasma that has been impulsively heated. Additionally, a significant fraction of the map area has a time lag of zero. This does not indicate a lack of variability. Rather, strong variability must be present, and it must occur in phase in the different channels. We have shown previously that these zero time lags are consistent with the transition region response to coronal nanoflares (Viall & Klimchuk 2015; Bradshaw & Viall 2016), but other explanations are possible. A common misconception is that the zero time lag indicates steady emission resulting from steady heating. Using simulated and observed light curves, we demonstrate here that highly correlated light curves at zero time lag are not compatible with equilibrium solutions. Such light curves can only be created by evolution.
description: 10 pages, 3 figures. Accepted to ApJ July 5 2016
Observations of Binaries in the Orion Nebula Cluster
Creators: name: Koehler, Rainer
name: Kubiak, Karolina
name: Schaefer, Gail
name: Farrington, Christopher D.
Publisher: name: Zenodo
Year: 2023

description: The binary frequency of low-mass stars in the Orion Nebula Cluster (ONC) is about the same or even lower than for main-sequence field stars. In contrast to this, almost all stars in the Taurus-Auriga association have a companion. On the other hand, almost all the high-mass stars in the Trapezium have companions, often more than one. Resolving binaries in the ONC is challenging because of the necessary high angular resolution. This is even more true for other, more distant clusters. Currently the only way to achieve a resolution better than 20 mas (~10 AU in the ONC) is optical long-baseline interferometry with arrays like CHARA or the VLTI. New and improved beam combiners have the sensitivity to conduct surveys with enough stars to yield statistically significant results.

description: {"references": ["Gies et al. 2010, RMxAC 38, 133", "GRAVITY Collaboration 2018, A&A, 620, A11", "Lanthermann et al. 2022, SPIE 12183", "Lanthermann et al. 2023, A&A 672, A8"]}
Compression of interferometric radio-astronomical data
Creators: name: Offringa, A. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The volume of radio-astronomical data is a considerable burden in the processing and storing of radio observations with high time and frequency resolutions and large bandwidths. Lossy compression of interferometric radio-astronomical data is considered to reduce the volume of visibility data and to speed up processing. A new compression technique named "Dysco" is introduced that consists of two steps: a normalization step, in which grouped visibilities are normalized to have a similar distribution; and a quantization and encoding step, which rounds values to a given quantization scheme using a dithering scheme. Several non-linear quantization schemes are tested and combined with different methods for normalizing the data. Four data sets with observations from the LOFAR and MWA telescopes are processed with different processing strategies and different combinations of normalization and quantization. The effects of compression are measured in image plane. The noise added by the lossy compression technique acts like normal system noise. The accuracy of Dysco is depending on the signal-to-noise ratio of the data: noisy data can be compressed with a smaller loss of image quality. Data with typical correlator time and frequency resolutions can be compressed by a factor of 6.4 for LOFAR and 5.3 for MWA observations with less than 1% added system noise. An implementation of the compression technique is released that provides a Casacore storage manager and allows transparent encoding and decoding. Encoding and decoding is faster than the read/write speed of typical disks. The technique can be used for LOFAR and MWA to reduce the archival space requirements for storing observed data. Data from SKA-low will likely be compressible by the same amount as LOFAR. The same technique can be used to compress data from other telescopes, but a different bit-rate might be required.
description: Accepted for publication in A&A. 13 pages, 8 figures. Abstract was abridged
Protostellar Outflows in L1340
Creators: name: Walawender, Josh
name: Wolf-Chase, Grace
name: Smutko, Michael
name: O'Linger-Luscusk, JoAnn
name: Moriarty-Schieven, Gerald
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have searched the L1340 A, B, and C clouds for shocks from protostellar outflows using the H$_2$ 2.122 $μ$m near-IR line as a shock tracer. Substantial outflow activity has been found in each of the three regions of the cloud (L1340 A, L1340 B, & L1340 C). We find 42 distinct shock complexes (16 in L1340 A, 11 in L1340 B, and 15 in L1340 C). We were able to link 17 of those shock complexes in to 12 distinct outflows and identify candidate source stars for each. We examine the properties (A$_{V}$, T$_{bol}$, and L$_{bol}$) of the source protostars and compare that to the properties of the general population of Class 0/I and flat SED protostars and find that there is an indication, albeit at low statistical significance, that the outflow driving protostars are drawn from a population with lower A$_{V}$, higher L$_{bol}$, and lower T$_{bol}$ than the general population of protostars.
description: 26 pages, 19 figures
Star formation and feedback in galaxies with multiphase ISM and individual stars
Creators: name: Lahén, Natalia
Publisher: name: Zenodo
Year: 2023

description: The cyclic evolution of the multiphase interstellar medium (ISM) culminates in the formation of stars and star clusters. Young stars inhibit further star formation by releasing radiation, winds and supernovae that also induce shocks and turbulence within the ISM. Observations of young star-forming regions indicate that stars and star clusters vacuate their natal gas clouds over short timescales of only a few million years. However, the details of the complex non-linear coupling between the various feedback mechanisms across the stellar lifetime and their accumulated impact in clustered star forming regions remain poorly understood. I will review the recent advancements in various (magneto)hydrodynamical simulation projects that have addressed the galactic baryon cycle using high-resolution models of low-metallicity dwarf galaxies. Here, the multiphase ISM and stellar populations are modeled with high enough detail to self-consistently capture the hot-phase generating energy input of single supernova events. Equipped with simulations that realize the formation and feedback of individual stars, we can now address the role of clustered star formation and feedback in the ISM cycle and how, when and where star clusters form across star-forming environments and, eventually, cosmic timescales.
Binary Properties of 47 Tuc (NGC 104)
Creators: name: Müller-Horn, Johanna
Publisher: name: Zenodo
Year: 2023

description: Observations of binary stars in globular clusters are essential to shed light on the formation of peculiar stellar objects, such as blue straggler stars, and to probe the populations of dark stellar remnants thought to be located in the dense cluster cores. 47 Tuc is one of the most massive galactic globular clusters and its large population of blue stragglers and a predicted but as yet elusive population of up to hundreds of black holes make it an exciting candidate for binary searches. Using multi-epoch data from the VLT/MUSE integral field spectrograph, we analyse the binary population of 47 Tuc and identify 708 binary candidates based on the variability of their radial velocities. We present a new estimate of the total binary fraction in the cluster and find a significantly enhanced binary fraction among blue straggler stars, suggesting an origin involving multiple star systems. The determination of orbital parameters and minimum companion masses allows us to put tight constraints on the number of black holes in binary systems in 47 Tuc. By confronting the observations with state-of-the-art model predictions, we reveal a surprising absence of short-period binaries with massive companions. This highlights the need to improve our understanding of stellar evolution in binary systems.
Chemical Fingerprints of Mass Transfer in Open Clusters
Creators: name: Nine, Andrew C.
Publisher: name: Zenodo
Year: 2023

description: Blue straggler stars (BSSs) and blue lurkers (BLs) are thought to form from binary interactions, particularly mass transfer, mergers, and collisions. If a BSS forms from mass accreted from a thermally-pulsing asymptotic-giant-branch (AGB) star, it can bear distinctive surface abundance markers as a result of s-process nucleosynthesis that occurred in the evolved donor star. If a BSS forms from mass transfer from a red-giant-branch (RGB) star, it may show depletions in carbon and oxygen as a result of the CNO-processed material transferred from the donor star. We present an abundance study of BSSs and BLs in two open clusters, NGC 7789 (1.6 Gyr) and M67 (4 Gyr), looking for signatures of AGB and RGB mass transfer, using high-resolution optical spectra obtained at the WIYN Observatory, and place them in the context of the previously studied open clusters NGC 6819 (2.5 Gyr) and NGC 188 (7 Gyr). We find remarkable similarities in the positions on the color-magnitude diagram of barium-enriched BSSs in M67 and NGC 6819, and we show the evolution of surface abundance alterations over a wide range of cluster ages.
Beyond Zipf's Law: The Lavalette Rank Function and its Properties
Creators: name: Fontanelli, Oscar
name: Miramontes, Pedro
name: Yang, Yaning
name: Cocho, Germinal
name: Li, Wentian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Although Zipf's law is widespread in natural and social data, one often encounters situations where one or both ends of the ranked data deviate from the power-law function. Previously we proposed the Beta rank function to improve the fitting of data which does not follow a perfect Zipf's law. Here we show that when the two parameters in the Beta rank function have the same value, the Lavalette rank function, the probability density function can be derived analytically. We also show both computationally and analytically that Lavalette distribution is approximately equal, though not identical, to the lognormal distribution. We illustrate the utility of Lavalette rank function in several datasets. We also address three analysis issues on the statistical testing of Lavalette fitting function, comparison between Zipf's law and lognormal distribution through Lavalette function, and comparison between lognormal distribution and Lavalette distribution.
description: 15 pages, 4 figures
Report on the First Predictive Dynamic Models of the Viability of Pathogens along Processing of Mediterranean Artisanal Fermented Foods and Report on the Optimised Process Variables to Enhance their Microbiological Safety
Creators: name: Gonzales-Barron, U.
name: Cadavez, V.
name: Valero, A.
name: Skandamis, P.
name: Kintzios, S.
name: de Cesare, A.
name: Manfreda, G.
name: Tenenhaus-Aziza, F.
name: Guillier, L.
name: Boudhrioua, N.
name: Achemchem, F.
Publisher: name: Zenodo
Year: 2022
Subjects: Predictive microbiology models
Fermented foods
Microbial kinetic parameters

description: This report combines Deliverables 6.1 and 6.2, whose objectives were to build up predictive microbiology models that describe the viability of the selected pathogens in the target artisanal fermented foods (this is, the data obtained from the fate studies); and to provide recommendations to optimise the microbiological safety and stability of those products.
Topological invariance of the Collet-Eckmann condition for one-dimensional maps
Creators: name: Li, Huaibin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: This paper is devoted to study the topological invariance of several non-uniform hyperbolicity conditions of one-dimensional maps. In contrast with the case of maps with only one critical point, it is known that for maps with several critical points the Collet-Eckmann condition is not in itself invariance under topological conjugacy. We show that the Collet-Eckmann condition together with any of several slow recurrence conditions is invariant under topological conjugacy. This extends and gives a new proof of a result by Luzzatto and Wang that also applies to the complex setting.
description: 14 pages
Efficient Deployment of Multiple Unmanned Aerial Vehicles for Optimal Wireless Coverage
Creators: name: Mozaffari, Mohammad
name: Saad, Walid
name: Bennis, Mehdi
name: Debbah, Merouane
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, the efficient deployment of multiple unmanned aerial vehicles (UAVs) with directional antennas acting as wireless base stations that provide coverage for ground users is analyzed. First, the downlink coverage probability for UAVs as a function of the altitude and the antenna gain is derived. Next, using circle packing theory, the three-dimensional locations of the UAVs is determined in a way that the total coverage area is maximized while maximizing the coverage lifetime of the UAVs. Our results show that, in order to mitigate interference, the altitude of the UAVs must be properly adjusted based on the beamwidth of the directional antenna as well as coverage requirements. Furthermore, the minimum number of UAVs needed to guarantee a target coverage probability for a given geographical area is determined. Numerical results evaluate the various tradeoffs involved in various UAV deployment scenarios.
description: Accepted in the IEEE Communications Letters
Decretion and accretion in Be star binary systems
Creators: name: Rubio, A. C.
name: Carciofi, A. C.
name: Bjorkman, J. E.
Publisher: name: Zenodo
Year: 2023

description: Accretion disks are common in astrophysical systems, from AGN to protostellar disks. The disks of Be stars (rapidly rotating Main Sequence B-type stars) are special: they are discretion disks, built from matter ejected by the central object. When in a binary system, the companion can affect the Be disk in many ways, exciting density waves and even causing truncation. It can also accrete material from it, as is the case for Be X-ray binaries, whose X-ray emission is powered by accretion onto a compact companion. In our work we simulate Be binaries with a smoothed particle hydrodynamics (SPH) code (Okazaki et al. 2002) in order to investigate the effects of the companion on the dynamics of the disk, the process through which it accretes matter, and how the system loses mass as whole. We employ a modified version of the code, specially updated by us to increase resolution in low density areas of the system, such as the outer disk and around the companion. We find that disk structures around the secondary are only formed for disks with low viscosity and short binary periods, while no consistent structure is formed for more viscous disks. In these cases, mass is accreted by the companion as it flows past it. Furthermore, a circumbinary disk is formed around the system for all simulations, which was never before seen in simulations for Be binaries, but agrees with recent observational findings of radio emission from these types of system, where an ad-hoc circumbinary disk model was employed. Our study paves the way for a better understanding of X-ray emission in Be X-ray binaries, and offers an insight in how hidden companions of Be stars can be detected observationally.
Additional file 1 of Challenges and opportunities for spoken English learning and instruction brought by automated speech scoring in large-scale speaking tests: a mixed-method investigation into the washback of SpeechRater in TOEFL iBT
Creators: name: Gong, Kaixuan
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: Additional file 1. Appendix A (Questionnaire) and Appendix B (Interview protocols).
Additional file 11 of Microbial functional genes are driven by gradients in sediment stoichiometry, oxygen, and salinity across the Baltic benthic ecosystem
Creators: name: Broman, Elias
name: Izabel-Shen, Dandan
name: Rodríguez-Gijón, Alejandro
name: Bonaglia, Stefano
name: Garcia, Sarahi L.
name: Nascimento, Francisco J. A.
Publisher: name: figshare
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Ecology

description: Additional file 10: Figure S1. Shannon’s H of all KEGG KOs for each station. The data was normalized by sub-sampling to the lowest read count (982,326). Each dot in the graphs shows the mean after bootstrap × 100. Figure S2. A) Top ten metabolic pathways, and B) functional genes in the Baltic Sea sediment samples (KEGG KO hits with their respective KEGG pathway shown in parenthesis). KEGG KO identifiers classified to the “Function unknown” pathway or unclassified metabolism in the “Enzymes with EC numbers” pathway was not included in subpanel (A). The data shown is based on the average CPM-values for all 59 stations (±SE). Figure S3. Shannon’s H of the NCBI RefSeq taxonomy based for each station. The data was normalized by sub-sampling to the lowest read count (1,063,881). Each dot in the graphs shows the mean after bootstrap × 100. Figure S4. NMDS showing the beta diversity (Bray-Curtis dissimilarity) of the microbial community (NCBI RefSeq classified taxonomy) at the lowest classified level, i.e. genus. The data was normalized as relative abundances (%). The PERMANOVA results are based on testing all regions together and shows the pseudo-F value. Figure S5. The figure shows the Jaccard distance (y-axis) based on the metabolic distance between the high-quality MAGs in different areas of the Baltic Sea. The MAGs were grouped according to salinity as North (<5), South (>8), or Dead Zones. The metabolic distance between MAGs present in the North and South were also calculated and is shown as “North vs South”. The error bars show SE. Figure S6. Heatmap showing the top relative abundant (%, color legend shown on the y-axis) classified hits on the lowest taxonomic level (genus) based on the NCBI RefSeq data. The heatmap is delimited to only show genera > 0.5% average of all samples. The x-axis shows the results for each station. Table S1. Results from the linear models of the top 10 pathways. The CPM is based on the average CPM values for all station (n = 59) as shown in Fig. S1. The stars denote: * = P < 0.05; ** = P < 0.01 ; *** = P < 0.001. Text S1. Correlations between abiotic variables.
Magnetic quantum dots and rings in two dimensions
Creators: name: Downing, C. A.
name: Portnoi, M. E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the motion of electrons confined to a two dimensional plane with an externally applied perpendicular inhomogeneous magnetic field, both with and without a Coulomb potential. We find that as long as the magnetic field is slowly-decaying, bound states in magnetic quantum dots are indeed possible. Several example cases of such magnetic quantum dots are considered in which one can find the eigenvalues and eigenfunctions in closed form, including two hitherto unknown quasi-exactly solvable models treated with confluent and biconfluent Heun polynomials. It is shown how a modulation of the strength of the magnetic field can exclude magnetic vortex-like states, rotating with a certain angular momenta and possessing a definite spin orientation, from forming. This indicates one may induce localization-delocalization transitions and suggests a mechanism for spin-separation.
description: 9 pages, 3 figures
Optimizing Distributed Networking with Big Data.pdf
Creators: name: Zhu, Wenbo
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 460601
subject: Cloud computing
classificationCode: 460603
subject: Cyberphysical systems and internet of things
classificationCode: 460602
subject: Concurrent/parallel systems and technologies
classificationCode: 460605
subject: Distributed systems and algorithms
classificationCode: 460609
subject: Networking and communications
classificationCode: 460699
subject: Distributed computing and systems software not elsewhere classified
classificationCode: 460610
subject: Operating systems
classificationCode: 460611
subject: Performance evaluation
classificationCode: 460612
subject: Service oriented computing
classificationCode: 460608
subject: Mobile computing

description: With the rapid transformation of computer hardware and algorithms, mobile networking has evolved from low datacarrying capacity and high latency to better-optimized networks, either by enhancing the digital network or using different approaches to reduce network traffic. This paper discusses the big data applications and scheduling in the distributed networking and analyzes the opportunities and challenges of data management systems. The analysis shows that the big data scheduling in the cloud computing environment produces the most efficient way to transfer and synchronize data. Since scheduling problems and cloud models are very complex to analyze in different settings, we set it to the typical software defined networks. The development of cloud management models and coflow scheduling algorithm is proved to be the priority of the digital communications and networks development in the future.
Stability properties of the Euler-Korteweg system with nonmonotone pressures
Creators: name: Giesselmann, Jan
name: Tzavaras, Athanasios E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We establish a relative energy framework for the Euler-Korteweg system with non-convex energy. This allows us to prove weak-strong uniqueness and to show convergence to a Cahn-Hilliard system in the large friction limit. We also use relative energy to show that solutions of Euler-Korteweg with convex energy converge to solutions of the Euler system in the vanishing capillarity limit, as long as the latter admits sufficiently regular strong solutions.
APPLICATION OF ALTERNATIVE DISPUTE RESOLUTION METHODS TO MARRIAGE DISPUTES IN NIGERIA.
Creators: name: Imoisi Simon, Ejokema, PhD
name: Iyemeake, Sunday
name: Adeoba, Jemimah
Publisher: name: ZAP Journal
Year: 2025
Subjects: Dispute Resolution, Marriages, Alternative Dispute Resolution, Arbitration, Mediation, Matrimonial Causes

description: Marriage is a union entered into by two parties in every jurisdiction, i.e., marriage is a universal occurrence. Although the legal process involved (either in formality or requirement) varies from one jurisdiction to another, marriage is often characterized by disputes that range from divorce to custody of children, maintenance, etc. Marriage, as examined in this context, is limited to that conducted under statutes. In resolving these disputes, recourse is made to adjudication. But over time, various shortcomings are being found for litigation. These include unnecessary delay caused by congestion of court, high cost of litigation, and the confrontational nature of litigation amongst others. Employing the Matrimonial Causes Act, 1970, which operates within the Nigerian jurisdiction, this research presents an outlook of litigation in resolving marriage disputes and points out its shortcomings. Consequent to the shortcomings found for litigation, various alternatives to litigation have resonated. The aim of this paper is to examine the application of alternative dispute resolution to the resolution of marriage disputes in Nigeria.
Waveguide metacouplers for in-plane polarimetry
Creators: name: Pors, Anders
name: Bozhevolnyi, Sergey I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The state of polarization (SOP) is an inherent property of the vectorial nature of light and a crucial parameter in a wide range of remote sensing applications. Nevertheless, the SOP is rather cumbersome to probe experimentally, as conventional detectors only respond to the intensity of the light, hence loosing the phase information between orthogonal vector components. In this work, we propose a new type of polarimeter that is compact and well-suited for in-plane optical circuitry, while allowing for immediate determination of the SOP through simultaneous retrieval of the associated Stokes parameters. The polarimeter is based on plasmonic phase-gradient birefringent metasurfaces that facilitate normal incident light to launch in-plane photonic waveguide modes propagating in six predefined directions with the coupling efficiencies providing a direct measure of the incident SOP. The functionality and accuracy of the polarimeter, which essentially is an all-polarization sensitive waveguide metacoupler, is confirmed through full-wave simulations at the operation wavelength of 1.55$μ$m.
Star formation and the origin of multiplicity - the individual stellar-system perspective
Creators: name: Frost, Abigail J.
Publisher: name: Zenodo
Year: 2023
Subjects: star formation
stars
binaries
multiplicity
clusters

description: t has been shown that the vast proportion of stars are not alone, with ~40% of stars comparable in mass to our Sun (e.g. Raghavan+ 2010) and ~90% of the most massive stars (e.g. Sana+ 2012) existing in at least a binary system. This multiplicity has the potential to vastly change a star’s life should it interact with a companion, but despite its importance the origins of multiplicity remain unclear. In this talk I will present the current picture we have of the formation of multiple stellar systems, including results from both observations and theory. I will discuss the processes that can lead multiple, rather than single, star systems to collapse from star forming cores and additionally discuss how the circumstellar material of forming stars can affect their final multiplicity.
The Binary Content of Multiple Populations in Globular Clusters
Creators: name: Martens, Sven
Publisher: name: Zenodo
Year: 2023

description: There are multiple stellar populations in globular clusters that differ in light element abundances. The formation process of these populations is not yet fully understood, but their binary content can give hints about the environment that these stars form in. We use multi-epoch observations with the integral field spectrograph MUSE of 25 globular clusters to derive stellar radial velocities. Using a statistical approach, we calculate a binary probability for each star based on its radial velocities. The RGB stars of each cluster are split into populations using pseudo-color color diagrams that are based on Hubble photometry. Compared to previous studies, our sample contains more clusters and stars per population with typically more than 100 stars per population. Based on previous results, we expect to find differences in the binary fraction between populations that allow us to give constraints on the formation process of these populations.
Effects of social information signals on user engagement: evidence from randomized field experiments
Creators: name: Deodhar, Swanand J.
name: Tandon, Ayushi
name: Tandon, Abhas
name: Tripathi, Abhinav
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: In this study, we examine the social information signal as a driver of user engagement. Specifically, we model two distinct outcomes related to user engagement: content consumption (e.g. watching a video) and content organisation (e.g. adding a video to a playlist). Given the increasingly social nature of digital platforms, we predict user engagement actions as a function of Peer and Expert social information signals. We employ a series of field experiments on a mobile e-learning application to tease out the distinction between content consumption (CC) and content organisation (CO) based on users’ responses to information signals distinguished based on the source. Our results indicate that the Peer and Expert information signals significantly affect the focal user's CC action but have no effect on their CO actions. These findings, coupled with interesting nuances from two allied field experiments on the same app, reveal the uneven effects of social information signals on both user engagement actions. To sum up, the study presents important implications for predicting user engagement in digital platforms and the social information signaling these platforms can adopt.
Additional file 1 of Osteoclast-derived extracellular vesicles are implicated in sensory neurons sprouting through the activation of epidermal growth factor signaling
Creators: name: Neto, Estrela
name: Leitão, Luís
name: Mateus, José C.
name: Sousa, Daniela M.
name: Alves, Cecília J.
name: Aroso, Miguel
name: Monteiro, Ana C.
name: Conceição, Francisco
name: Oreffo, Richard O. C.
name: West, Jonathan
name: Aguiar, Paulo
name: Lamghari, Meriem
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Space Science
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer
subject: Plant Biology

description: Additional file 1: Figure S1. Evaluation of osteoclast differentiation. Figure S2. Dorsal root ganglia axonal growth. Figure S3. Quantification of secretome neurotrophins by enzyme-linked immunosorbent assay (ELISA). Figure S4. Drug toxicity assay—EGFR inhibitor. Figure S5. Genetic expression of EGFR/ErbB2 ligands by osteoclasts. Figure S6. PKH26 stained extracellular vesicles (EV) added to the axonal side in the microfluidic devices. Figure S7. Sensory neurons electrophysiological activity. Figure S8. Total protein quantification on the conditioned medium collected from different cell culture settings.