cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Revision of Star-Formation Measures
Creators: name: Leitherer, Claus
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Rotation plays a major role in the evolution of massive stars. A revised grid of stellar evolutionary tracks accounting for rotation has recently been released by the Geneva group and implemented into the Starburst99 evolutionary synthesis code. Massive stars are predicted to be hotter and more luminous than previously thought, and the spectral energy distributions of young populations mirror this trend. The hydrogen ionizing continuum in particular increases by a factor of up to 3 in the presence of rotating massive stars. The effects of rotation generally increase towards shorter wavelengths and with decreasing metallicity. Revised relations between star-formation rates and monochromatic luminosities for the new stellar models are presented.
description: 5 pages, 3 figures, to appear in IAU Symp. 255, Low-Metallicity Star Formation, ed. L. Hunt, S. Madden, & R. Schneider (Cambridge: CUP)
Numerical study of a 20W class QCW pulsed sodium guide star laser's performances at five sites in China
Creators: name: Li, Hongyang
name: Feng, Lu
name: Zuo, Junwei
name: Bian, Qi
name: Sun, Botian
name: Xue, Suijian
name: Shen, Zhixia
name: Li, Yangpeng
name: Bo, Yong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In the past few years, Chinese astronomical community is actively testing astronomical sites for several new optical/infrared ground-based telescopes. These site testing campaigns conducted were mainly focused on fundamental performances of the site, such as cloud coverage, seeing, temperature, etc. With increasing interests in sodium laser guide star adaptive optics for these new telescopes in the Chinese astronomical community, it is interesting to investigate the performance of the laser guide star at these sites, especially considering that the sodium laser guide star's on-sky performance is significantly influenced by sites' local performances, such as geomagnetic field, sodium layer dynamics, density of air molecule, etc. In this paper, we studied sodium laser guide star's performance of a 20W class Quasi-CW pulsed laser developed by TIPC with numerical simulation for five selected sites in China.
First polarimetric observations and modeling of the FeH F^4 Delta-X^4 Delta system
Creators: name: Afram, N.
name: Berdyugina, S. V.
name: Fluri, D. M.
name: Semel, M.
name: Bianda, M.
name: Ramelli, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Lines of diatomic molecules are more temperature and pressure sensitive than atomic lines, which makes them ideal tools for studying cool stellar atmospheres an internal structure of sunspots and starspots. The FeH F^4 Delta-X^4 Delta system represents such an example that exhibits in addition a large magnetic field sensitivity. The current theoretical descriptions of these transitions including the molecular constants involved are only based on intensity measurements because polarimetric observations have not been available so far, which limits their diagnostic value. We present for the first time spectropolarimetric observations of the FeH F^4 Delta-X^4 Delta system measured in sunspots to investigate their diagnostic capabilities for probing solar and stellar magnetic fields. We investigate whether the current theoretical model of FeH can reproduce the observed Stokes profiles including their magnetic properties. The polarimetric observations are compared with synthetic Stokes profiles modeled with radiative transfer calculations. This allows us to infer the temperature and the magnetic field strength of the observed sunspots. We find that the current theory successfully reproduces the magnetic properties of a large number of lines in the FeH F^4 Delta-X^4 Delta system. In a few cases the observations indicate a larger Zeeman splitting than predicted by the theory. There, our observations have provided additional constraints, which allowed us to determine empirical molecular constants. The FeH F^4 Delta-X^4 Delta system is found to be a very sensitive magnetic diagnostic tool. Polarimetric data of these lines provide us with more direct information to study the coolest parts of astrophysical objects.
description: 4 pages, 3 figures
Real-space Observation of Incommensurate Spin Density Wave and Coexisting Charge Density Wave on Cr(001) surface
Creators: name: Hu, Yining
name: Zhang, Tianzhen
name: Zhao, Dongming
name: Chen, Chen
name: Ding, Shuyue
name: Yang, Wentao
name: Wang, Xu
name: Li, Chihao
name: Wang, Haitao
name: Feng, Donglai
name: Zhang, Tong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In itinerant magnetic systems, a spin density wave (SDW) state can be induced by Fermi surface nesting and electron-electron interaction. It may intertwine with other orders such as charge density wave (CDW), while their relation is still yet to be understood. Here via spin-polarized scanning tunneling microscopy, we directly observed long-range spin modulation on Cr(001) surface, which corresponds to the well-known incommensurate SDW of bulk Cr. It displays 6.0 nm in-plane period and anti-phase behavior between adjacent (001) planes. Meanwhile, we simultaneously observed the coexisting CDW with half the period of SDW. Such SDW/CDW have highly correlated domain structures and are in-phase. Surprisingly, the CDW displays a contrast inversion around a density-of-states dip at -22 meV, indicating an anomalous CDW gap opened below EF. These observations support that the CDW is a secondary order driven by SDW. Our work is not only a real-space characterization of incommensurate SDW, but also provides insights on how SDW and CDW coexist.
description: 14 pages, 5 figures, supplementary materials included
Virtual Court Study: Report of a Pilot Test 2018
Creators: name: Tait, David
name: Tay, Vincent
Publisher: name: Western Sydney University
Year: 2019

description: This was a pilot study to develop the technological infrastructure for a virtual court or tribunal, get a preliminary idea about how potential users might respond and identify limitations of the technology that would need to be addressed before such options become suitable for regular use. In a ‘virtual’ hearing, there is no physical room for the court (or tribunal) at all: the participants take part by multi-channel video link.
Additional file 2 of Predicting environmentally responsive transgenerational differential DNA methylated regions (epimutations) in the genome using a hybrid deep-machine learning approach
Creators: name: Mavaie, Pegah
name: Holder, Lawrence
name: Beck, Daniel
name: Skinner, Michael K.
Publisher: name: figshare
Year: 2021
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 2. Fig S2: The accuracy of different models (Hybrid, DL, DeepCpG, DeepSEA, and DanQ) for DMR prediction. Each line shows the accuracy of each approach when trained and tested on the DMRs and non-DMRs for an individual chromosome. The points at the far right for ‘All’ are the accuracies of these ‘all chr’ models on all the DMRs and non-DMRs across the entire genome.
Electric field control of spin-orbit splittings in GaAs/AlGaAs coupled quantum wells
Creators: name: Larionov, A. V.
name: Golub, L. E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Electron spin dynamics is investigated in n-i-n GaAs/AlGaAs coupled quantum wells. The electron spin dephasing time is measured as a function of an external electrical bias under resonant excitation of the 1sHH intrawell exciton using a time-resolved Kerr rotation technique. It is found a strong electron spin dephasing time anisotropy caused by an interference of the structure inversion asymmetry and the bulk inversion asymmetry. This anisotropy is shown to be controlled by an electrical bias. A theoretical analysis of electron spin dephasing time anisotropy is developed. The ratio of Rashba and Dresselhaus spin splittings is studied as a function of applied bias.
description: 4 pages, 3 figures
Honeycomb-structure RuI3, a new quantum material related to α-RuCl3
Creators: name: Ni, Danrui
name: Gui, Xin
name: Powderly, Kelly M.
name: Cava, R. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Kitaev model predicts that quantum spin liquids (QSLs) will form at low temperatures under certain special conditions, and materials hosting the QSL state are frequently sought. The layered honeycomb lattice material α-RuCl3 has emerged as a prime candidate for displaying the Kitaev QSL state. Here we describe a new polymorph of RuI3 with a layered honeycomb lattice structure, synthesized at moderately high pressures and stable under ambient conditions. Preliminary characterization reveals metallic, paramagnetic behavior, the absence of long-range magnetic order down to 0.35 K and an unusually large T-linear contribution to the heat capacity at low temperatures. We propose that this RuI3 phase, with a layered honeycomb lattice and strong spin-orbit coupling, provides a new route for the characterization of quantum materials.
Spectral properties of quarks above T_c in quenched lattice QCD
Creators: name: Karsch, Frithjof
name: Kitazawa, Masakiyo
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the quark spectral function above the critical temperature for deconfinement in quenched lattice QCD using clover improved Wilson fermions in Landau gauge. We show that the temporal quark correlator is well reproduced by a two-pole approximation for the spectral function and analyze the bare quark mass dependence of both poles as well as their residues. In the chiral limit we find that the quark spectral function has two collective modes which correspond to the normal and plasmino excitations. At large values of the bare quark mass the spectral function is dominated by a single pole.
description: 5 pages, 3 figures, typos corrected, references added
An Analysis of the Gel Point of Polymer Model Networks by Computer Simulations
Creators: name: Lang, Michael
name: Müller, Toni
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The gel point of end-linked model networks is determined from computer simulation data. It is shown that the difference between the true gel point conversion, $p_{\text{c}}$, and the ideal mean field prediction for the gel point, $p_{\text{c,id}}$, is a function of the average number of cross-links per pervaded volume of a network strand, $P$, and thus, contains an explicit dependence on junction functionality $f$. On the contrary, the amount of intra-molecular reactions at the gel point is independent of $f$ in a first approximation and exhibits a different power law dependence on the overlap number of elastic strands as compared to the gel point delay $p_{\text{c}}-p_{\text{c,id}}$. Therefore, $p_{\text{c}}-p_{\text{c,id}}$ cannot be predicted from intra-molecular reactions and vice versa in contrast to a long standing proposal in literature. Instead, the main contribution to $p_{\text{c}}-p_{\text{c,id}}$ for $P>1$ arises from the extra bonds (XB) needed to bridge the gaps between giant molecules separated in space and scales roughly $\propto\left(P-1\right)^{-1/2}$. Further corrections to scaling are due to non-ideal reaction kinetics, composition fluctuations, and incompletely screened excluded volume, which are discussed briefly.
A multi-sensor robotic platform for ground mapping and estimation beyond the visible spectrum
Creators: name: Milella, Annalisa
name: Reina, Giulio
name: Nielsen, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Accurate soil mapping is critical for a highly-automated agricultural vehicle to successfully accomplish important tasks including seeding, ploughing, fertilising and controlled traffic, with limited human supervision, ensuring at the same time high safety standards. In this research, a multi-sensor ground mapping and characterisation approach is proposed, whereby data coming from heterogeneous but complementary sensors, mounted on-board an unmanned rover, are combined to generate a multi-layer map of the environment and specifically of the supporting ground. The sensor suite comprises both exteroceptive and proprioceptive devices. Exteroceptive sensors include a stereo camera, a visible and near infrared camera and a thermal imager. Proprioceptive data consist of the vertical acceleration of the vehicle sprung mass as acquired by an inertial measurement unit. The paper details the steps for the integration of the different sensor data into a unique multi-layer map and discusses a set of exteroceptive and proprioceptive features for soil characterisation and change detection. Experimental results obtained with an all-terrain vehicle operating on different ground surfaces are presented. It is shown that the proposed technologies could be potentially used to develop all-terrain self-driving systems in agriculture. In addition, multi-modal soil maps could be useful to feed farm management systems that would present to the user various soil layers incorporating colour, geometric, spectral and mechanical properties.
Aberrated optical cavities
Creators: name: Jaffe, Matt
name: Palm, Lukas
name: Baum, Claire
name: Taneja, Lavanya
name: Simon, Jonathan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Optical cavities are an enabling technology of modern quantum science: from their essential role in the operation of lasers, to applications as fly-wheels in atomic clocks and interaction-enhancing components in quantum optics experiments, developing a quantitative understanding of the mode-shapes and energies of optical cavities has been crucial for the growth of the field. Nonetheless, the standard treatment using paraxial, quadratic optics fails to capture the influence of optical aberrations present in modern cavities with high finesse, small waist, and/or many degenerate modes. In this work, we compute the mode spectrum of optical resonators, allowing for both non-paraxial beam propagation and beyond-quadratic mirrors and lenses. Generalizing prior works [1-5], we develop a complete theory of resonator aberrations, including intracavity lenses, non-planar geometries, and arbitrary mirror forms. Harnessing these tools, we reconcile the near-absence of aberration in Ref. [6] with the strongly evident aberrations in the seemingly similar cavity of Ref. [7]. We further validate our approach by comparison to a family of non-planar lens cavities realized in the lab, finding good quantitative agreement. This work opens new prospects for cavities with smaller waists and more degenerate modes.
description: 21 pages, 5 figures
Microscopic models and effective equation of state in nuclear collisions at FAIR energies
Creators: name: Bravina, L.
name: Arsene, I.
name: Bleibel, J.
name: Bleicher, M.
name: Burau, G.
name: Faessler, Amand
name: Fuchs, C.
name: Nilsson, M. S.
name: Stoecker, H.
name: Tywoniuk, K.
name: Zabrodin, E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Two microscopic models, UrQMD and QGSM, were employed to study the formation of locally equilibrated hot and dense nuclear matter in heavy-ion collisions at energies from 11.6 AGeV to 160 AGeV. Analysis was performed for the fixed central cubic cell of volume V = 125 fm**3 and for the expanding cell which followed the growth of the central area with uniformly distributed energy. To decide whether or not the equilibrium was reached, results of the microscopic calculations were compared to that of the statistical thermal model. Both dynamical models indicate that the state of kinetic, thermal and chemical equilibrium is nearly approached at any bombarding energy after a certain relaxation period. The higher the energy, the shorter the relaxation time. Equation of state has a simple linear dependence P = a(sqrt{s})*e, where a = c_s**2 is the sound velocity squared. It varies from 0.12 \pm 0.01 at E_{lab} = 11.6 AGeV to 0.145 \pm 0.005 at E_{lab} = 160 AGeV. Change of the slope in a(sqrt{s}) behavior occurs at E_{lab} = 40 AGeV and can be assigned to the transition from baryon-rich to meson-dominated matter. The phase diagrams in the T - mu_B plane show the presence of kinks along the lines of constant entropy per baryon. These kinks are linked to the inelastic (i.e. chemical) freeze-out in the system.
description: 14 pages, REVTEX
Order in the chaos? The strange case of accreting millisecond pulsars
Creators: name: Di Salvo, T.
name: Burderi, L.
name: Riggio, A.
name: Papitto, A.
name: Menna, M. T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We review recent results from the X-ray timing of accreting millisecond pulsars in Low Mass X-ray Binaries. This is the first time a timing analysis is performed on accreting millisecond pulsars, and for the first time we can obtain information on the behavior of a very fast pulsar subject to accretion torques. We find both spin-up and spin-down behaviors, from which, using available models for the accretion torques, we derive information on the mass accretion rate and magnetic field of the neutron star in these systems. We also find that the phase delays behavior as a function of time in these sources is sometimes quite complex and difficult to interpret, since phase shifts, most probably driven by variations of the X-ray flux, are sometimes present.
description: 10 Pages, 3 Figures. Final version to be published on AIP Conference Proceedings
Asymptotic behavior of flat surfaces in hyperbolic 3-space
Creators: name: Kokubu, Masatoshi
name: Rossman, Wayne
name: Umehara, Masaaki
name: Yamada, Kotaro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C42 (Primary) 53A35 (Secondary)

description: In this paper, we investigate the asymptotic behavior of regular ends of flat surfaces in the hyperbolic 3-space H^3. Galvez, Martinez and Milan showed that when the singular set does not accumulate at an end, the end is asymptotic to a rotationally symmetric flat surface. As a refinement of their result, we show that the asymptotic order (called "pitch" p) of the end determines the limiting shape, even when the singular set does accumulate at the end. If the singular set is bounded away from the end, we have -1
description: 34 pages, 6 figures
Scattering of phonons on two-level systems in disordered crystals
Creators: name: Anghel, Dragoş-Victor
name: Churochkin, Dmitry
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We calculate the scattering rates of phonons on two-level systems in disordered trigonal and hexagonal crystals. We apply a model in which the two-level system, characterized by a direction in space, is coupled to the strain field of the phonon via a tensor of coupling constants. The structure of the tensor of coupling constants is similar to the structure of the tensor of elastic stiffness constants, in the sense that they are determined by the same symmetry transformations. In this way, we emphasize the anisotropy of the interaction of elastic waves with the ensemble of two-level systems in disordered crystals. We also point to the fact that the ratio $γ_l/γ_t$ has a much broader range of allowed values in disordered crystals than in isotropic solids.
description: 5 pages, no figures
Additional file 3 of Predicting environmentally responsive transgenerational differential DNA methylated regions (epimutations) in the genome using a hybrid deep-machine learning approach
Creators: name: Mavaie, Pegah
name: Holder, Lawrence
name: Beck, Daniel
name: Skinner, Michael K.
Publisher: name: figshare
Year: 2021
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 3. Table S1: Description of the hyper-parameters used to optimize the DL model. The underlined values resulted in the best-performing network
title: Deutschland im Hitzestress. Rekordwärme trifft Rekorddürre
Creators: name: Mohr, Susanna
name: Marx, Andreas
Publisher: name: Deutsches GeoForschungsZentrum GFZ
Year: 2018

description: Mehr heiße Tage als im Jahrhundertsommer 2003, Niedrigwasser in fast allen Flüssen und bereits 91 Prozent der deutschen Böden ausgedorrt. Das Center for Disaster Management and Risk Reduction Technology des KIT legt einen ersten Bericht zur Dürresituation in Deutschland vor. Die Wissensplattform beleuchtet einige Aspekte daraus.
Confirming NGC 6231 as the parent cluster of the runaway high-mass X-ray binary HD 153919/4U 1700-37 with Gaia DR2
Creators: name: van der Meij, Vincent
name: Guo, Difeng
name: Kaper, Lex
name: Renzo, Mathieu
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A significant fraction of the most massive stars move through space with a high velocity. One of the possible physical explanations is that a supernova in a compact binary system results in a high recoil velocity of the system. If the system remains bound, it can be subsequently observed as a spectroscopic binary (SB1), a high-mass X-ray binary, a compact binary, and finally a gravitational-wave event. If such a system is traced back to its parent cluster, binary evolution models can be tested in great detail. The Gaia proper motions and parallaxes are used to demonstrate that the high-mass X-ray binary HD153919/4U 1700-37 originates from NGC6231, the nucleus of the OB association Sco OB1. The O supergiant and its compact companion, of which the physical nature (a neutron star or a black hole) is unknown, move with a space velocity of 63 km/s with respect to NGC6231. The kinematical age of the system is 2.2 Myr. The parallaxes and accurate proper motions in Gaia DR2 were used to perform a membership analysis of NGC 6231. The distance to NGC6231 is 1.63 kpc. Isochrone fitting results in an age of 4.7 Myr. With the identification of NGC6231 as the parent cluster, the upper limit on the age of the progenitor of 4U1700-37 at the moment of the supernova explosion is 3.0 Myr. With these constraints, the evolutionary history of the system can be reconstructed with an initial mass of the progenitor of the compact object >60 Msun. Given its current high space velocity and the derived evolutionary history, the compact object in the system is more likely to have received a large natal kick, which suggests that it is more likely a neutron star than a black hole. HD153919/4U1700-37 might be a prototype in the Milky Way for the progenitor of gravitational wave events such as GW190412
description: 17 pages, A&A in press
Metal Oxides in Textile Dye Wastewater Treatment: Current Frontiers and Future Horizons
Creators: name: Parit, Santosh
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 410504
subject: Surface water quality processes and contaminated sediment assessment
classificationCode: 410503
subject: Groundwater quality processes and contaminated land assessment

description: The textile industry, a cornerstone of global manufacturing, faces mounting scrutiny over its environmental footprint, particularly concerning wastewater laden with synthetic dyes. These dyes, characterized by their complex aromatic structures and resistance to degradation, pose severe risks to aquatic ecosystems and human health. Metal oxides have emerged as pivotal materials in addressing this challenge, offering versatile solutions through adsorption and photocatalytic degradation. Current research highlights the efficacy of transition metal oxides like TiO2, ZnO, and Fe3O4, both in pristine and modified forms, for adsorbing and breaking down dye molecules. While advancements in nanocomposites and doped oxides have enhanced degradation efficiencies under visible light, challenges such as scalability, cost, and secondary pollution persist. Globally, nations like China and India lead in pioneering these technologies, driven by their dense textile manufacturing sectors and regulatory pressures. Looking ahead, the field is poised to embrace green synthesis methods, hybrid treatment systems, and policy-driven frameworks to translate laboratory success into real-world impact. This perspective explores the evolving role of metal oxides in dye wastewater treatment, balancing scientific innovation with practical feasibility.
Habitat shifts and behavioural interactions between sympatric and experimentally allopatric cutthroat trout and Dolly Varden char
Creators: name: Andrew, Joyce H.
Publisher: name: University of British Columbia
Year: 2010

description: The role of competition in structuring a lacustrine community of two salmonid species, cutthroat trout (Salmo clarki Richardson) and Dolly Varden char (Salvelinus malma Walbaum), was investigated in three coastal B.C. lakes. Habitat utilization of both species alone (allopatric) and in coexistence with each other (sympatric) was determined by gill netting at depth contours from lake surfaces to bottoms such that littoral, epipelagic, pelagic, and epibenthic habitats were sampled. From June to October, trout utilized mainly surface habitats (littoral and epipelagic) in sympatry and allopatry. Char utilized all habitats in allopatry, and exhibited generalist feeding behaviour by opportunistically utilizing different habitats as prey abundance varied between sampling periods. However, in sympatry, char shifted to deeper habitats not occupied by trout. In sympatry, trout and char were spatially segregated with depth. However, temporal segregation was not pronounced. The habitat shift by char supports an hypothesis of competition between sympatric trout and char for habitat resources, where competition acts more strongly on char. However, food abundance partly explained patterns in fish distribution. The hypothesis that habitat segregation between sympatric trout and char is based on behavioural interactions was investigated in laboratory experiments. There were changes in the type and intensity of interaction between trout and char with irradiance level that were consistent with their distribution and depth of habitat. At high irradiance levels such as occur in surface habitats, trout were more aggressive to char than at low irradiance levels. In sympatry with trout, char may seek refuge from aggression by trout in deeper habitats with lower irradiance levels. The feeding performance of char in interspecies pairs dominated by trout increased with decreasing intensity of behavioural interactions. However, the feeding performance of these char did not improve at low irradiance levels, presumably because char continued to display subordinate behaviours while confined in an aquarium with dominant trout. Whether the shift to deeper habitats by lake-dwelling sympatric char is a result of interference mechanisms is not clear. However, an hypothesis involving an interactive mechanism of segregation and interference competition along irradiance level gradients cannot be rejected by this study.
Le lettere paoline come fonte kantiana
Creators: name: Valzesi, Luca
Publisher: name: Università degli Studi di Milano
Year: 2014

description: This article is an historical analysis of Saint Paul´s letters as Kantian source, not only in the context of the Kantian  philosophy of religion but also and especially of his practical philosophy overall. In order to clarify the context of this analysis, this contribution is split into two parts. The first part cares to analyze the value of Saint Paul within the historical background of Kant, highlighting why it is reasonable to assume an influence of Saint Paul in the second Critique.  The second part, therefore, engages a direct confrontation with the Critique of practical reason, using the learnings provided by the first section. The final aim of this work is to discuss the possibility of welcoming a new portrait of Kant with strong biblical traits is some key moments of his practical philosophy.
description: Itinera, No 8 (2014)
Birefringence and non-transversality of light propagation in an ultra-strongly magnetized vacuum
Creators: name: Hu, Shuang-Wei
name: Liu, Bin-Bin
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The birefringence phenomenon in the vacuum with a constant magnetic background of arbitrary strength is considered within the framework of the effective action approach. A new feature of the birefringence in a magnetized vacuum is that the parallel mode, which is polarized parallel to the plane containing the magnetic field and the photon wave vector, is no longer transverse. We have studied this feature in detail for arbitrary magnetic field and provided analytic results for the ultra-strong magnetic field regime. Possible physical implications of our results in astrophysics are discussed.
description: 6 pages, 3 figures; v2: Several typos corrected, text improved
Stochastic backgrounds of relic gravitons, T$Λ$CDM paradigm and the stiff ages
Creators: name: Giovannini, Massimo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Absent any indirect tests on the thermal history of the Universe prior to the formation of light nuclear elements, it is legitimate to investigate situations where, before nucleosyntheis, the sound speed of the plasma was larger than $c/\sqrt{3}$, at most equalling the speed of light $c$. In this plausible extension of the current cosmological paradigm, hereby dubbed Tensor-$Λ$CDM (i.e. T$Λ$CDM) scenario, high-frequency gravitons are copiously produced. Without conflicting with the bounds on the tensor to scalar ratio stemming from the combined analysis of the three standard cosmological data sets (i.e. cosmic microwave background anisotropies, large-scale structure and supenovae), the spectral energy density of the relic gravitons in the T$Λ$CDM scenario can be potentially observable by wide-band interferometers (in their advanced version) operating in a frequency window which ranges between few Hz and few kHz.
description: 15 pages, 8 figures
Sterile neutrino dark matter catalyzed by a very light dark photon
Creators: name: Alonso-Álvarez, Gonzalo
name: Cline, James M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Sterile neutrinos ($ν_s$) that mix with active neutrinos ($ν_a$) are interesting dark matter candidates with a rich cosmological and astrophysical phenomenology. In their simplest incarnation, their production is severely constrained by a combination of structure formation observations and X-ray searches. We show that if active neutrinos couple to an oscillating condensate of a very light $L_μ-L_τ$ gauge field, resonant $ν_a$-$ν_s$ oscillations can occur in the early universe, consistent with $ν_s$ constituting all of the dark matter, while respecting X-ray constraints on $ν_s\toν_aγ$ decays. Interesting deviations from standard solar and atmospheric neutrino oscillations can persist to the present.
description: 15 pages, 8 figures. v2: some clarifications and references added, small errors corrected, main conclusions unchanged
BPK, BLU, dan Kekeliruan
Creators: name: Atmaja, A.P. Edi
Publisher: name: Zenodo
Year: 2021

description: Tulisan ini ingin membahas aspek hukum dari wacana pembentukan badan layanan umum (BLU) di lingkungan Badan Pemeriksa Keuangan RI (BPK) berkenaan dengan praktik pemeriksaan BPK terhadap organisasi internasional tersebut.

Lihat selengkapnya: https://news.detik.com/kolom/d-5832147/bpk-blu-dan-kekeliruan
Arm retraction dynamics in dense polymer brushes
Creators: name: Lang, Michael
name: Werner, Marco
name: Dockhorn, Ron
name: Kreer, Torsten
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Large scale Monte Carlo simulations of dense layers of grafted polymer chains in good solvent conditions are used to explore the relaxation of a polymer brush. Monomer displacements are analyzed for the directions parallel and perpendicular to the grafting plane. Auto-correlation functions of individual segments or chain sections are monitored as function of time. We demonstrate that the terminal relaxation time $τ$ of grafted layers well in the brush regime grows exponentially with degree of polymerization $N$ of the chains, $τ\propto N^{3}\exp(N/N_{e})$, with $N_{e}$ the entanglement degree of polymerization in the brush. One specific feature of entangled polymer brushes is that the late time relaxation of the perpendicular component coincides for all segments. We use this observation to extract the terminal relaxation time of an entangled brush.
El tratamiento de la desigualdad económica en los cibermedios: una propuesta de análisis de contenido internacional desde la perspectiva del nuevo sistema híbrido de medios
Creators: name: Pérez-Arozamena, Rosa
name: Odriozola-Chéné, Javier
Publisher: name: Zenodo
Year: 2019
Subjects: Cibermedios, Desigualdad económica, Sistema híbrido de medios, Análisis de contenido, Producción periodística, Legacy media

description: La configuración de la opinión pública es un proceso en el que, tradicionalmente, los medios de comunicación han tenido un papel fundamental. Sin embargo, desde la llegada de Internet, el rol de los legacy media se ha visto cuestionado debido a la aparición de nuevos actores que han generado el establecimiento de un sistema híbrido de medios. En este contexto, el objetivo de esta comunicación es construir una herramienta metodológica basada en el análisis de contenido que profundice en los cambios que se están desarrollando en los cibermedios para contribuir a explicar cómo el proceso de producción periodística se está transformando. Para ello, la propuesta se centra en el estudio de la desigualdad económica, con el fin de profundizar en la construcción, evolución e importancia del concepto en la agenda cibermediática a través de una herramienta de carácter longitudinal (2009-2018) y aplicable en un contexto internacional.
Fast recognition of single molecules based on single event photon statistics
Creators: name: Dong, Shuangli
name: Huang, Tao
name: Liu, Yuan
name: Wang, Jun
name: Zhang, Guofeng
name: Xiao+, Liantuan
name: Jia, Suotang
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Mandel Q-parameter, which is determined from single event photon statistics, provides an alternative to differentiate single-molecule with fluorescence detection. In this work, by using the Q-parameter of the sample fluorescence compared to that of an ideal double-molecule system with the same average photon number, we present a novel and fast approach for identifying single molecules based on single event photon statistics analyses, compared with commonly used two-time correlation measurements. The error estimates for critical values of photon statistics are also presented for single-molecule determination.
description: 13 pages, 4figures
Additional file 4 of Predicting environmentally responsive transgenerational differential DNA methylated regions (epimutations) in the genome using a hybrid deep-machine learning approach
Creators: name: Mavaie, Pegah
name: Holder, Lawrence
name: Beck, Daniel
name: Skinner, Michael K.
Publisher: name: figshare
Year: 2021
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 4. Table S2: Summary of the datasets, including a brief description and the number of DMRs in the dataset due to the exposure. The number of non-DMRs is also shown, but they are determined from the genome, not individual exposure data
ALMA and NOEMA constraints on synchrotron nebular emission from embryonic superluminous supernova remnants and radio-gamma-ray connection
Creators: name: Murase, Kohta
name: Omand, Conor M. B.
name: Coppejans, Deanne L.
name: Nagai, Hiroshi
name: Bower, Geoffrey C.
name: Chornock, Ryan
name: Fox, Derek B.
name: Kashiyama, Kazumi
name: Law, Casey
name: Margutti, Raffaella
name: Meszaros, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Fast-rotating pulsars and magnetars have been suggested as the central engines of super-luminous supernovae (SLSNe) and fast radio bursts, and this scenario naturally predicts non-thermal synchrotron emission from their nascent pulsar wind nebulae (PWNe). We report results of high-frequency radio observations with ALMA and NOEMA for three SLSNe (SN 2015bn, SN 2016ard, and SN 2017egm), and present a detailed theoretical model to calculate non-thermal emission from PWNe with an age of about 1-3 yr. We find that the ALMA data disfavors a PWN model motivated by the Crab nebula for SN 2015bn and SN 2017egm, and argue that this tension can be resolved if the nebular magnetization is very high or very low. Such models can be tested by future MeV-GeV gamma-ray telescopes such as AMEGO.
description: 7 pages, 4 figures, 2 tables
Additional file 1 of Reference values for fetal Doppler-based cardiocirculatory indices in monochorionic-diamniotic twin pregnancy
Creators: name: Chongsomboonsuk, Thananan
name: Phithakwatchara, Nisarat
name: Nawapun, Katika
name: Viboonchart, Sommai
name: Jaingam, Suparat
name: Wataganara, Tuangsit
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 1: Supplementary Table S1. The number of fetuses in each gestational period.
Separation of singularities for the Bergman space and application to control theory
Creators: name: Hartmann, Andreas
name: Orsoni, Marcu-Antone
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Complex Variables (math.CV)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this paper, we solve a separation of singularities problem in the Bergman space. More precisely, we show that if $P\subset \mathbb{C}$ is a convex polygon which is the intersection of $n$ half planes, then the Bergman space on $P$ decomposes into the sum of the Bergman spaces on these half planes. The result applies to the characterization of the reachable space of the one-dimensional heat equation on a finite interval with boundary controls. We prove that this space is a Bergman space of the square which has the given interval as a diagonal. This gives an affirmative answer to a conjecture raised in [HKT20].
description: Journal de Math{\'e}matiques Pures et Appliqu{\'e}es, Elsevier, 2021
When are Swing options bang-bang and how to use it
Creators: name: Bardou, Olivier Aj
name: Bouthemy, Sandrine
name: Pagès, Gilles
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper we investigate a class of swing options with firm constraints in view of the modeling of supply agreements. We show, for a fully general payoff process, that the premium, solution to a stochastic control problem, is concave and piecewise affine as a function of the global constraints of the contract. The existence of bang-bang optimal controls is established for a set of constraints which generates by affinity the whole premium function. When the payoff process is driven by an underlying Markov process, we propose a quantization based recursive backward procedure to price these contracts. A priori error bounds are established, uniformly with respect to the global constraints.
description: 28 pages
Additional file 2 of Reference values for fetal Doppler-based cardiocirculatory indices in monochorionic-diamniotic twin pregnancy
Creators: name: Chongsomboonsuk, Thananan
name: Phithakwatchara, Nisarat
name: Nawapun, Katika
name: Viboonchart, Sommai
name: Jaingam, Suparat
name: Wataganara, Tuangsit
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 2: Supplementary Table S2. Predicted vascular Doppler indices of centiles by gestational age.
The SDSS Discovery of a Strongly Lensed Post-Starburst Galaxy at z=0.766
Creators: name: Shin, Min-Su
name: Strauss, Michael A.
name: Oguri, Masamune
name: Inada, Naohisa
name: Falco, Emilio E.
name: Broadhurst, Tom
name: Gunn, James E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first result of a survey for strong galaxy-galaxy lenses in Sloan Digital Sky Survey (SDSS) images. SDSS J082728.70+223256.4 was selected as a lensing candidate using selection criteria based on the color and positions of objects in the SDSS photometric catalog. Follow-up imaging and spectroscopy showed this object to be a lensing system. The lensing galaxy is an elliptical at z = 0.349 in a galaxy cluster. The lensed galaxy has the spectrum of a post-starburst galaxy at z = 0.766. The lensing galaxy has an estimated mass of $\sim 1.2 \times 10^{12} M_{\odot}$ and the corresponding mass to light ratio in the B-band is $\sim 26 M_{\odot}/L_{\odot}$ inside 1.1 effective radii of the lensing galaxy. Our study shows how catalogs drawn from multi-band surveys can be used to find strong galaxy-galaxy lenses having multiple lens images. Our strong lensing candidate selection based on photometry-only catalogs will be useful in future multi-band imaging surveys such as SNAP and LSST.
description: Accepted for publication in AJ
Theory and laboratory tests of the multi-stage phase mask coronagraph
Creators: name: Baudoz, P.
name: Galicher, R.
name: Baudrand, J.
name: Boccaletti, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A large number of coronagraphs have been proposed to overcome the ratio that exists between the star and its planet. The planet finder of the Extremely Large Telescope, which is called EPICS, will certainly need a more efficient coronagraph than the ones that have been developed so far. We propose to use a combination of chromatic Four Quadrant Phase Mask coronagraph to achromatize the dephasing of the device while maintaining a high rejection performance. After describing this multi-stage FQPM coronagraph, we show preliminary results of a study on its capabilities in the framework of the EPICS instrument, the planet finder of the European Extremely Large Telescope. Eventually, we present laboratory tests of a rough prototype of a multi-stage four-quadrant phase mask. On one hand, we deduce from our laboratory data that a detection at the 10^-10 level is feasible in monochromatic light. On the other hand, we show the detection of a laboratory companion fainter than 10^-8 with a spectral bandwidth larger than 20%.
description: 9 pages, 9 figures, To appear in SPIE proceeding- conference 7015 held in Marseille in June 2008
Monitoring Networked Applications With Incremental Quantile Estimation
Creators: name: Chambers, John M.
name: James, David A.
name: Lambert, Diane
name: Wiel, Scott Vander
Publisher: name: arXiv
Year: 2007
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Networked applications have software components that reside on different computers. Email, for example, has database, processing, and user interface components that can be distributed across a network and shared by users in different locations or work groups. End-to-end performance and reliability metrics describe the software quality experienced by these groups of users, taking into account all the software components in the pipeline. Each user produces only some of the data needed to understand the quality of the application for the group, so group performance metrics are obtained by combining summary statistics that each end computer periodically (and automatically) sends to a central server. The group quality metrics usually focus on medians and tail quantiles rather than on averages. Distributed quantile estimation is challenging, though, especially when passing large amounts of data around the network solely to compute quality metrics is undesirable. This paper describes an Incremental Quantile (IQ) estimation method that is designed for performance monitoring at arbitrary levels of network aggregation and time resolution when only a limited amount of data can be transferred. Applications to both real and simulated data are provided.
description: This paper commented in: [arXiv:0708.0317], [arXiv:0708.0336], [arXiv:0708.0338]. Rejoinder in [arXiv:0708.0339]. Published at http://dx.doi.org/10.1214/088342306000000583 in the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)