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571 results for “Brightness”
Discovery of 24 radio-bright quasars at 4.9<z<6.6 using low-frequency radio observations
<p>Properties of newly discovered high-z quasars (4.9<z<6.6) derived from photometric and spectroscopic observations. The radio measurements have been obtained using the LOFAR Two Metre Sky Survey (LoTSS-DR2; 144 MHz), VLA FIRST (1.4 GHz), and Very Large Array Sky Survey (VLASS; 2-4 GHz). The spectroscopic observations have been conducted using the Faint Object Camera and Spectrograph on the Subaru telescope, LRS2 on the Hobby-Eberly Telescope, and LRIS on Keck. The rest-frame UV magnitudes have been derived by combining the optical to mid-infrared observations and performing spectral energy distribution fitting using the template fitting code EAZY (Brammer et al 2008).</p>
Effects of brightness variations on a smartphone-based version of Radner reading charts
<p>Each row corresponds to a specific participant while each column correspond to the following measurements:<br> 1° column: Age<br> 2° column: Spherical Equivalent from Autorefractometer<br> 3° column: Spherical Equivalent from Correction in use<br> 4° column: Reading acuity for Radner paper chart<br> 5° column: Reading acuity for smartphone-based high luminance Radner chart<br> 6° column: Reading acuity for smartphone-based medium luminance Radner chart<br> 7° column: Reading acuity for smartphone-based low luminance Radner chart</p>
Microphone Brightness Modelling Dataset
<p>Data relating to the development and testing of a model predicting the perception of the degree of timbral brightness imparted by to a recording by the microphone used to make that recording. Archive comprises audio files, listening test instructions and MaxMSP interfaces, MATLAB code and listening test results.</p> <p><strong>References</strong></p> <p>A.Pearce, "Perceived differences between microphones", PhD Thesis, Institute of Sound Recording, University of Surrey, UK.</p> <p>A.Pearce, T.Brookes, R.Mason, "Modelling the Microphone-Related Timbral Brightness of Recorded Signals", Applied Sciences Special Issue on Applications of Machine Learning in Audio Classification and Acoustic Scene Characterization, vol.11, iss.14, article number 6461.</p>
Generating mock galaxy catalogues for flux-limited samples like the DESI Bright Galaxy Survey
<p>Supplementary material to DESI's publication "Generating mock galaxy catalogues for flux-limited samples like the DESI Bright Galaxy Survey" to comply with the data management plan. This includes the Python scripts and data points required to reproduce all figures in the publication.</p>
Data from Figures in "Ultralow-loss integrated photonics enables bright, narrow-band, photon-pair sources"
<p><span>The MATLAB code and data used </span><span>to produce the plots within "Ultralow-loss integrated photonics enables bright, narrow-band, photon-pair sources". </span></p>
Brightness data
<p>This file contains brightness data in Rayleigh for OI 630.0 nm (red line), OI 557.7 (green line), N<sup>+</sup><sub>2</sub> 427.8 nm (blue line) through the night of June 22-23, 2015 obtained using the HiT&MIS from Lowell, MA.</p> <p> </p> <p>The files are in numpy's .npz format and can be accessed (in python) as such after zipping:</p> <p>import numpy as np</p> <p>june22=np.load("june22_23_brightness.npz")<br> i630=(june22['imi630'])# imi630 - OI 630.0 nm brightness at 37-54 degrees zenith angles<br> i557=(june22['imi557'])# OI 557.7 nm brightness at 37-54 degrees zenith angles<br> i427=(june22['imi427'])# N2+ 427.8 nm brightness at 37-54 degrees zenith angles.</p> <p>i6305=june22['imi6305']# NeI 630.5 nm brightness (this is not calibrated so in Arb. units) at 37-54 degrees zenith angle</p> <p>time=june22['time']--> Time in Local time</p> <p>Similarly, june22[iml...] and june22[imz...] can be used to get the brightnesses at 54-70 degrees and 20-37 degrees zenith angles. For example june22['imz630] gives the red line brightness at 20-37 degrees zenith angle.</p> <p>Contact me at saurav_aryal@student.uml.edu if you have any specific questions.</p>
FIGURE 3 in Alpheus naranjo, a new brightly coloured snapping shrimp from the Caribbean coast of Panama (Malacostraca, Decapoda, Alpheidae)
FIGURE 3. Three species from the Alpheus blachei species complex, dorsal views of living individuals. A—Alpheus naranjo sp. nov., holotype, male (9.0 mm) from Bocas del Toro, Caribbean coast of Panama (FLMNH UF 44471); B—same, ovigerous female (cl 9.7 mm) from the same locality (OUMNH.ZC. 2018.01.03); C—Alpheus blachei Crosnier & Forest, 1965, ovigerous female (cl 8.3 mm) from São Tomé (OUMNH.ZC.2016-01-036); D—Alpheus confusus Carvacho, 1989, ovigerous female (cl 5.4 mm) from Coiba, Pacific coast of Panama (OUMNH.ZC.2014-02-028). Photographic credits: (A, B) by Robert Lasley; (C) by the author; (D) by Ingo S. Wehrtmann.
FIGURE 2 in Alpheus naranjo, a new brightly coloured snapping shrimp from the Caribbean coast of Panama (Malacostraca, Decapoda, Alpheidae)
FIGURE 2. Alpheus naranjo sp. nov., paratype, male (cl 8.4 mm) from Bocas del Toro, Caribbean coast of Panama (FLMNH UF 44448): A—major cheliped, chela, lateral view; B—same, mesial view; C—same, coxa to carpus, lateral view; D—same, ischium, merus and carpus, mesial view, conventional setae omitted; E—same, dactylus, lateral view; F—minor cheliped, lateral view; G—same, chela, mesial view; H—same, ischium, merus and carpus, mesial view, conventional setae omitted.
FIGURE 1 in Alpheus naranjo, a new brightly coloured snapping shrimp from the Caribbean coast of Panama (Malacostraca, Decapoda, Alpheidae)
FIGURE 1. Alpheus naranjo sp. nov., paratype, male (cl 8.4 mm) from Bocas del Toro, Caribbean coast of Panama (FLMNH UF 44448): A—frontal region, dorsal view; B—same, lateral view; C—telson, dorsal view; D—ventromesial carina on first antennular article, lateral view; E—third maxilliped, lateral view; F—second pereiopod, lateral view; G—third pereiopod, lateral view; H—same, distal portion of propodus and dactylus, mesial view; I—fifth pereiopod, lateral view; J—same, distal portion of propodus and dactylus, mesial view; K—second pleopod, appendix masculina and appendix interna, mesial view; L—uropod, dorsal view.
Fig. 2. Pygmaeoborus cubensis, female. A in Occurrence of Pygmaeoborus cubensis Bright (Coleoptera: Curculionidae: Scolytinae) in South America
Fig. 2. Pygmaeoborus cubensis, female. A) Dorsal habitus, B) Lateral habitus, C) Frons, D) Elytral declivity. All photographs by T. H. Atkinson, specimen from Río Grande do Sul, Brazil. Photographs were taken with a Canon 60D camera with extension tubes and a Canon MP-E 65-mm 1–5× macro lens mounted on a Cognisys Stackshot rail system. Images were stacked with Zerene Stacker.
Fig. 1 in Occurrence of Pygmaeoborus cubensis Bright (Coleoptera: Curculionidae: Scolytinae) in South America
Fig. 1. Known localities for Pygmaeoborus cubensis. Black circles represent newly reported localities.
Investigating the "Too Bright" Issue Pertaining to Non-PBL Clouds over the South Pacific Trade-Wind Region in CMIP6 Global Climate Models
<p><a href="../api/records/13314147/draft/files/f09.C6.B-hist.SON_ANN.tar.gz/content" target="_blank" rel="noopener noreferrer">f09.C6.B-hist.SON_ANN.tar.g</a>z</p> <p>CESM2-CAM6 with falling ice radiative effects (FIREs), fully coupled run folloing CMIP6 historical run, same as CESM2-CAM6 in CMIP6 data port.</p> <p> </p> <p>The data includes with netcdf self description.</p> <p>f09.C6.B-hist.h01_AWNC_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.h01_CLDHGH_ANN_climo-CDO.nc<br>f09.C6.B-hist.h01_CLDLIQ_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.h01_CLDLOW_ANN_climo-CDO.nc<br>f09.C6.B-hist.h01_CLDMED_ANN_climo-CDO.nc<br>f09.C6.B-hist.h01_CLDTOT_ANN_climo-CDO.nc<br>f09.C6.B-hist.h01_CLOUD_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.h01_CLOUDFRAC_CLUBB_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.h01_CONCLD_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.h01_FREQL_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.h01_ICWMR_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.h01_NUMLIQ_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.h01_OMEGA_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.h01_PRECC_ANN_climo-CDO.nc<br>f09.C6.B-hist.h01_PRECL_ANN_climo-CDO.nc<br>f09.C6.B-hist.h01_SST_ANN_climo-CDO.nc<br>f09.C6.B-hist.h01_tauy_ANN_climo-CDO.nc</p> <p><a href="../api/records/13314147/draft/files/f09.C6.B-hist.SON_ANN.tar.gz/content" target="_blank" rel="noopener noreferrer">f09.C6.B-hist.NOS_ANN.tar.g</a>z</p> <p>CESM2-CAM6 without falling ice radiative effects (FIREs), fully coupled run folloing CMIP6 historical run, same as CESM2-CAM6 in CMIP6 data port.</p> <p><br>f09.C6.B-hist.nos81_AWNC_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.nos81_CDNUMC_ANN_climo-CDO.nc<br>f09.C6.B-hist.nos81_CLDHGH_ANN_climo-CDO.nc<br>f09.C6.B-hist.nos81_CLDLIQ_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.nos81_CLDLOW_ANN_climo-CDO.nc<br>f09.C6.B-hist.nos81_CLDMED_ANN_climo-CDO.nc<br>f09.C6.B-hist.nos81_CLDTOT_ANN_climo-CDO.nc<br>f09.C6.B-hist.nos81_CLOUD_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.nos81_CLOUDFRAC_CLUBB_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.nos81_CONCLD_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.nos81_FREQL_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.nos81_ICWMR_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.nos81_NUMLIQ_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.nos81_OMEGA_ANN_15L-CDO_1x1.nc<br>f09.C6.B-hist.nos81_PRECC_ANN_climo-CDO.nc<br>f09.C6.B-hist.nos81_PRECL_ANN_climo-CDO.nc<br>f09.C6.B-hist.nos81_SST_ANN_climo-CDO.nc<br>f09.C6.B-hist.nos81_taux_ANN_climo-CDO.nc<br>f09.C6.B-hist.nos81_tauy_ANN_climo-CDO.nc</p>
The Infrared Surface Brightness technique applied to RR Lyrae stars from the solar neighborhood
<p>Complete set of plots corresponding to the Zgirski et al. (2024) 'The Infrared Surface Brightness technique applied to RR Lyrae<br>stars from the solar neighborhood' A&A paper.</p> <p>Light and radial velocity curves for all RR Lyrae stars from our sample.</p> <p>Value of the integral of the radial velocity curve and variations of the stellar angular diameter obtained four SBCRs described in the text.</p> <p>Fits of linear bisectors to relations between values of the integral and the angular diameter estimated based on the four SBCRs. Slope of<br>such a line is a product of the p−factor and the stellar parallax.</p>
3D Real-Time Single Particle Tracking using two-photon fluorescence from bright dye-based organic nanoparticles
<p>Data set, and attached ReadMe files related to the production of the figures in the article "3D Real-Time Single Particle Tracking using two-photon fluorescence from bright dye-based organic nanoparticles" by Emperauger et al.</p> <p> </p> <p>The ReadMe files explaining how each data file is organised, the data are in txt format, organised by figure and sub-figures and compressed. </p>
Means and standard errors of fits for the l=2 spherical harmonic expansion coefficients of the radio brightness distribution on the sky using Parker Solar Probe/FIELDS/RFS data
Open the record for dataset details and reuse information.
Data from: Mating status correlates with dorsal brightness in some but not all poison frog populations
Sexual signals are important for intraspecific communication and mate selection, but their evolution may be driven by both natural and sexual selection, and stochastic processes. Strawberry poison frogs (Oophaga pumilio) show strong color divergence among populations, but coloration also varies among individuals of the same population. The importance of coloration for female mate choice has been studied intensely, and sexual selection seems to affect color divergence in strawberry poison frogs. However, the effect of coloration on mating success under field conditions has received very little attention. Furthermore, few studies examined how phenotypic variation among individuals of the same color morph affects mate selection under natural conditions. We measured the spectral reflectance of courting and noncourting individuals and their background substrates in three geographically separated populations. In one population (Sarapiquí, Costa Rica), we found that naturally occurring courting pairs of males and females had significantly brighter dorsal coloration than individual males and females not engaged in courtship interactions. Our field observations suggest that, in the wild, females prefer brighter males while the reason for the higher courtship activity of brighter females remains unclear. Overall our results imply that brightness differences among individuals of the same color morph may actually affect reproductive success in some populations of strawberry poison frogs.
Bright correlated twin-beam generation and radiation shaping in high-gain parametric down-conversion with anisotropy
<p>Dataset of the publication “Bright correlated twin-beam generation and radiation shaping in high-gain parametric down-conversion with anisotropy“, M. Riabinin, P. R. Sharapova, and T. Meier, Optics Express 29, 21876 (2021) ( <a href="https://doi.org/10.1364/OE.424977">https://doi.org/10.1364/OE.424977</a> ). The zip file includes the data on which the plots shown in figures 2, 3, 4, 6, 7, and 8 are based.</p>
FIGURE 1. Bright field micrographs showing Trichosteresis glabra female. A, Right fore wing. B in First record of Trichosteresis Förster (Hymenoptera: Megaspilidae) from South America
FIGURE 1. Bright field micrographs showing Trichosteresis glabra female. A, Right fore wing. B, Left fore wing with detail of stigmal vein and pterostigma. C, Mesosoma and posterior head, dorsal view, anterior to the left.
FIGURE 1 in Nomenclatural review and history of Pycnoporus (Polyporaceae): A widespread, bright-reddish genus in Basidiomycota
FIGURE 1. Lectotypes of names in Pycnoporus, a: Illustration of "Boletus cinnabarinus" (Jacq Fl. Austriac. 4: 2. 1776), lectotype of the Pycnoporus cinnabarinus (deposited in Archive of the History of Science in the Natural History Museum Vienna, tracing no. 682); b: Pycnoporus coccineus at Herbarium Royal Botanic Gardens – Kew, K(M) 164023; c: Pycnoporus puniceus at Museum of Evolution in Uppsala University (UPS-F-175963). Photos: Mario-Dominik Riedl, Lee Davies and Åsa Kruys, respectively.
Activity measures for African Pygmy mice in response to dim and bright light
<p>Rodents are integral components of ecosystems as they provide several important ecosystem services. Despite their importance as prey, pollinators and seed distributors, African rodents are largely understudied. The effect of anthropogenic changes such as artificial light at night extend past urban areas to peri-urban and rural habitats and can have profound effects on entire ecosystems. We investigated the effect of dim light at night (dLAN) on the locomotor activity rhythms of the African pygmy mouse (<em>Mus minutoides</em>). Pygmy mice showed a dramatic, intensity dependent reduction in their locomotor activity when subjected to dLAN, which was accompanied by a delay in the activity onset. We also considered masking responses with a dark pulse during the day and a light pulse at night. All animals became inactive in response to a light pulse during the night, whereas approximately half of the animals showed activity during a dark pulse in the day. Our results suggest that the African pygmy mouse is highly sensitive to light and that their activity is strongly masked by light. In their natural environment, vegetation could shield pygmy mice against high light levels, however other anthropogenic disturbances can affect the behaviour of these animals and could affect their survival.</p>
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