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371 results for “Ultraviolet”
Ultraviolet-visible spectroscopy absorbances for dissolved organic matter from Lake Mendota from June – November 2017
Dissolved organic matter (DOM) is a complex mixture of organic compounds found in all natural waters. Its composition affects its reactivity towards numerous processes. Its composition is a function of both its source (e.g., allochthonous or autochthonous) as well as the extent of environmental processing it has undergone (e.g., chemical or biological degradation). Ultraviolet-visible (UV-vis) spectroscopy is an analytical technique commonly used to assess the composition of dissolved organic matter in water samples. Here, we present spectra from Lake Mendota samples collected from June - November in 2017 at the surface of Lake Mendota as well as at specific depths within the water column. All samples were collected near the NTL-LTER research buoy. Absorbance values are listed for wavelengths 200 - 800 nm for each sample.
Bonanza Creek LTER: Hourly Ultraviolet Radiation (UV) Measurements from 1988 to Present in the Bonanza Creek Experimental Forest near Fairbanks, Alaska
In 1993, Eppley total UV radiometers (TUVR) were installed at each climate station on 21 April at LTER1 and 5 May at LTER2. These radiometers consist of a Weston selenium barrier-layer photoelectric cell with a sealed-in quartz window, a bandpass filter to restrict the wavelength response of the photcell to the designed range (295-385 nm), and a diffusing disc of Virgin Teflon to reduce the light intensity at the filtered photocell and also to improve the adherence of the instrument to the Lambert cosine law. The disc is nearly uniform diffusing over the wavelength range of interest, as well as geometrically within the system. The terminals of the photocell are connected through a precision resistor and the signal measured as a voltage drop across the resistor. Winter measurements may be inaccurate due to snow cover.
Data and code release for Carleton, Cornetet, Huybers, Meng & Proctor (PNAS, 2020), "Global evidence for ultraviolet radiation decreasing COVID-19 growth rates"
<p>This upload contains all replication material for "Global evidence for ultraviolet radiation decreasing COVID-19 growth rates" (PNAS, 2020). Please note that previous versions of this upload provided data and code for the pre-print version of the article, which changed somewhat through the peer review process. </p> <p><strong>Authors:</strong> Tamma Carleton, Jules Cornetet, Peter Huybers, Kyle C. Meng, Jonathan Proctor.</p> <p><strong>Code is located within CCHMP_covid_climate_code_release.zip</strong>, and is written in R, Stata, and Matlab. The working directory should be set to the repository folder at the top of each script (all other filepaths are relative).</p> <p>Please find the code needed to replicate the main findings of the paper described below:</p> <ul> <li>Plots of data: R and Stata scripts to make figures 1B, 2A/B/C, S1, S2, and S3, can be found within “code/analysis/data_plots/”.</li> <li>Regression analysis: Stata scripts to run the distributed lag regressions and plot the results in figures 2, 3C, S5, S6, S7, S8, S10, and S14, as well as Table S1, can be found within “code/analysis/regressions/”. R scripts for data analysis and plotting for figures 3A/B and S9 are also within "code/analysis/regressions/".</li> <li>Seasonal simulations: R and Stata scripts to replicate the seasonal simulation shown in figures 4, S4 and S11 can be found within “code/analysis/seasonal_sim/”.</li> <li>SEIR simulations: Matlab scripts to replicate the SEIR simulations shown in figures S12 and S13 can be found within “code/analysis/SEIR/”.</li> </ul> <p><strong>Data are located within CCHMP_covid_climate_data_release.zip.</strong></p>
RCSED - A Value-Added Reference Catalog of Spectral Energy Distributions of 800,299 Galaxies in 11 Ultraviolet, Optical, and Near-Infrared Bands: Morphologies, Colors, Ionized Gas and Stellar Populations Properties
<p>We present RCSED, the value-added Reference Catalog of Spectral Energy Distributions of galaxies, which contains homogenized spectrophotometric data for 800,299 low and intermediate redshift galaxies (0.007 < z < 0.6) selected from the Sloan Digital Sky Survey spectroscopic sample. Accessible from the Virtual Observatory (VO) and complemented with detailed information on galaxy properties obtained with the state-of-the-art data analysis, RCSED enables direct studies of galaxy formation and evolution during the last 5 Gyr. We provide tabulated color transformations for galaxies of different morphologies and luminosities and analytic expressions for the red sequence shape in different colors. RCSED comprises integrated k-corrected photometry in up-to 11 ultraviolet, optical, and near-infrared bands published by the GALEX, SDSS, and UKIDSS wide-field imaging surveys; results of the stellar population fitting of SDSS spectra including best-fitting templates, velocity dispersions, parameterized star formation histories, and stellar metallicities computed for instantaneous starburst and exponentially declining star formation models; parametric and non-parametric emission line fluxes and profiles; and gas phase metallicities. We link RCSED to the Galaxy Zoo morphological classification and galaxy bulge+disk decomposition results by Simard et al. We construct the color-magnitude, Faber-Jackson, mass-metallicity relations, compare them with the literature and discuss systematic errors of galaxy properties presented in our catalog. RCSED is accessible from the project web-site and via VO simple spectrum access and table access services using VO compliant applications. We describe several SQL query examples against the database. Finally, we briefly discuss existing and future scientific applications of RCSED and prospectives for the catalog extension to higher redshifts and different wavelengths.</p>
Sunburned plankton: Ultraviolet radiation inhibition of phytoplankton photosynthesis in the Community Earth System Model version 2
<p>Climate model output for paper describing CESM2-UVphyto.</p>
Data for: Probing electron and hole co-localization by resonant four-wave mixing spectroscopy in the extreme-ultraviolet
<p>Data for: Probing electron and hole co-localization by resonant four-wave mixing spectroscopy in the extreme-ultraviolet</p>
Supplementary dataset to the publication "Ultraviolet C inactivation of Coxiella burnetii for production of a structurally preserved whole cell vaccine antigen"
<p>The dataset supplements the journal article "Ultraviolet C inactivation of <em>Coxiella burnetii </em>for production of a structurally preserved whole cell vaccine antigen" published by Katja Mertens-Scholz, Amira A. Moawad, Elisabeth M. Liebler-Tenorio, Andrea Helming, Jennifer Andrack, Peter Miethe, Heinrich Neubauer, Mathias W. Pletz and Ina-Gabriele Richter in the journal BMC Microbiology (https://doi.org/10.1186/s12866-024-03246-z). The file "NMII 100µW" contains all data regarding inactivation of <em>C. burnetii</em> Nine Mile phase II with 100µW in a time dependent manner. The file "NMI 100 and 250µW" contains all data regarding inactivation of <em>C. burnetii</em> Nine Mile phase I with 100µW and 250µW in a time dependent manner. The file "surviving fraction" contains all data regarding inactivation of <em>C. burnetii </em>Nine Mile phase I and II after UVC treatment. The file "serology" contains all data obtained from ELISA experiments. The file "diameter" contains all data regarding the bacterial diameter after UVC treatment.</p>
Ultraviolet photoabsorption in the B³Σ⁻—X³Σ⁻ and C³Π—X³Σ⁻ band systems of SO sulphur isotopologues
<p>Supplementary data for: A. N. Heays, G. Stark, J. R. Lyons, N. de Oliveira, B. R. Lewis & S. T. Gibson (2022) Ultraviolet photoabsorption in the <em>B</em><sup>3</sup>Σ<sup>-</sup> − <em>X</em><sup>3</sup>Σ<sup>-</sup> and <em>C</em><sup>3</sup>Π − <em>X</em><sup>3</sup>Σ<sup>-</sup> band systems of SO sulphur isotopologues, Molecular Physics, DOI: <a href="https://doi.org/10.1080/00268976.2022.2153092">10.1080/00268976.2022.2153092</a></p> <p>Preprint: https://arxiv.org/abs/2301.05230</p> <p>The "hybrid" line lists and cross sections are recommended for application, in preference to the "experimental" and "model" versions.</p> <p> </p> <ul> <li><code>experimental_spectrum_*</code>: Raw experimental spectrum.</li> <li><code>experimental_vibrational_levels</code>: A list of fitted band-by-band or assumed molecular parameters for all electronic-vibrational levels contributing to the measured spectra.</li> <li><code>experimental_vibrational_linewidths</code>: A list of fitted band-by-band or assumed linewidths for electronic-vibrational levels contributing to the measured spectra.</li> <li><code>experimental_vibrational_spin_orbit_interactions</code>: A list of fitted band-by-band or assumed spin-orbit interactions mixing B- and C-state electronic-vibrational levels.</li> <li><code>experimental_vibrational_transition_moments</code>: A list of fitted band-by-band or assumed transition moments for all electronic-vibrational transitions contributing to the measured spectra.</li> <li><code>experimental_lines</code>: A list of line frequencies, intensities and widths fitted band-by-band to the measured spectra.</li> <li><code>experimental_rotational_levels</code>: A list of level energies and natural linewidths fitted band-by-band to the measured spectra.</li> <li><code>experimental_unassigned_lines</code>: Unassigned lines attributed to ³³S¹⁶O C(4)—X(0).</li> <li><code>model_lines</code>: A list of line frequencies and intensities computed from the global electronic-state model.</li> <li><code>hybrid_lines</code>: A list of line frequencies, intensities, widths, and upper-level nonradiative decay probabilities that combines data from lines fitted band-by-band to the experimental spectra and computed from a global electronic-state model.</li> <li><code>potential_energy_curve_B</code>: Potential-energy curve of a diabatic B-state fitted as part of a global electronic-state model.</li> <li><code>potential_energy_curve_C</code>: Potential-energy curve of a diabatic C-state fitted as part of a global electronic-state model.</li> <li><code>potential_energy_curve_X</code>: Potential-energy curve of the X ground state computed by the RKR method from data in Lattanzi, Cazzoli, and Puzzarini (Astrophy. J. 2015, 813:4).</li> <li><code>experimental_photoabsorption_cross_section_*</code>: Photoabsorption cross sections computed from <code>experimental_lines</code> for a range of isotopologues and temperature in hdf5 format.</li> <li><code>model_photoabsorption_cross_section_*</code>: Photoabsorption cross sections computed from <code>model_lines</code> for a range of isotopologues and temperature in hdf5 format.</li> <li><code>model_photodissociation_cross_section_*</code>: Photodissociation cross sections computed from <code>model_lines</code> for a range of isotopologues and temperature in hdf5 format.</li> <li><code>hybrid_photoabsorption_cross_section_*</code>: Photoabsorption cross sections computed from <code>hybrid_lines</code> for a range of isotopologues and temperature in hdf5 format.</li> <li><code>hybrid_photodissociation_cross_section_*</code>: Photodissociation cross sections computed from <code>hybrid_lines</code> for a range of isotopologues and temperature in hdf5 format</li> </ul>
Reproduction package for the paper "Near-ultraviolet detections of four dwarf nova candidates in the globular cluster 47 Tucanae"
<p>This is a basic reproduction package for the paper "Near-ultraviolet detections of four dwarf nova candidates in the globular cluster 47 Tucanae" by <a href="https://www.aanda.org/articles/aa/abs/2020/02/aa37043-19/aa37043-19.html">Modiano et al. (2020)</a>. It aims to provide the most important data products to check and reproduce the main results of the paper.</p>
Dataset: Information content of ultraviolet-reflecting color patches and visual perception of body coloration in the Tyrrhenian wall lizard Podarcis tiliguerta
<p>These are the data sets and R script corresponding to the scientific publication with the same title and authors.</p> <p>Description of these files is available in the file Note.pdf</p>
Strong-field quantum control in the extreme ultraviolet using pulse shaping
<p>Dataset for supporting the findings of the paper 'Strong-field quantum control in the extreme ultraviolet using pulse shaping' (<span>https://doi.org/10.1038/s41586-024-08209-y</span>)</p>
Mapping the core of the Tarantula Nebula with VLT-MUSE. III. A template for metal-poor starburst regions in the visual and far-ultraviolet
<p>Cumulative optical (VLT/MUSE) and far-ultraviolet (mix of HST empirical and ULLYSES templates) spectrum of NGC2070 (2x2 arcmin^2) presented in Figures 2 and 4, respectively, of Crowther & Castro (MNRAS in press, https://arxiv.org/abs/2311.07642) which should be cited if either dataset is used. </p><p>Contents:</p><p>MUSE.dat (ascii format, column 1 wavelength in Angstrom, column 2 flux in erg/s/cm^2/Ang). Further details of MUSE dataset is described in N. Castro et al. (2018 A&A 614 A147)</p><p>ULLYSES.dat (ascii format, column 1 wavelength in Angstrom, column 2 flux in erg/s/cm^2/Ang, some detector gaps). Further details of ULLYSES survey is described in R. Roman-Duval et al. (2020, Research Notes of AAS, 4, 205)</p>
Datasets for the article "The temperature and density of a solar flare kernel measured from extreme ultraviolet lines of O IV"
<p>This entry contains the following files:</p><p>20120309_030933_kernel_fe8_shift.save<br>20120309_030933_kernel_fe8_shift_fits.txt<br>20110814_055342_qs_offlimb_si10.save<br>20110814_055342_qs_offlimb_si10_fits.txt</p><p>The .save files are IDL save files that can be restored into IDL using the restore command.</p><p>The 20120309 save file contains:</p><p>swspec - An IDL structure containing a 1D spectrum of the flare kernel for the EIS short wavelength (SW) channel. The format is that returned by eis-mask-spectrum.pro.<br>lwspec - As above, but for the long-wavelength (LW) channel.<br>map185 - An IDL map structure containing the Fe VIII 185.21 image that was used to select the flare kernel.<br>mask185 - An IDL structure containing the pixel mask that is used as input to eis-mask-spectrum.pro.</p><p>The Gaussian fits to the spectra (as performed with the routine spec-gauss-eis.pro) are stored in 20120309_030933_kernel_fe8<i>s</i>hift_fits.txt. This file can be read with read_line_fits.pro in Solarsoft.</p><p>The 20110814 dataset is used to obtain an off-limb coronal spectrum for calibration purposes. The save file contains:</p><p>swspec - An IDL structure containing a 1D spectrum of the off-limb region for the EIS SW channel. The format is that returned by eis-mask-spectrum.pro.<br>lwspec - As above, but for the LW channel.<br>map - An IDL map structure containing the Si X 272 image that was used to select off-limb region.<br>mask - An IDL structure containing the pixel mask that is used as input to eis-mask-spectrum.pro.</p><p>The Gaussian fits to the spectra (as performed with the routine spec-gauss-eis.pro) are stored in 20110814_055342_qs_offlimb_si10_fits.txt. This file can be read with read_line_fits.pro in Solarsoft. </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p>
Operating diagram of DR1/DR2 double riffle; it consists of two independent sections (DR1 and DR2), each containing 630 litres of water and measuring 2.5 x 0.6 m. Each section contains a filtration system separate from the fish, a cooling unit and an ultraviolet sterilizer. An 80 W UQL lamp completes the lighting of the module lit during the day. in Reproduction of Zingel asper (Linnaeus, 1758) in controlled conditions: an assessment of the experiences realized since 2005 at the Besançon Natural History Museum
Operating diagram of DR1/DR2 double riffle; it consists of two independent sections (DR1 and DR2), each containing 630 litres of water and measuring 2.5 x 0.6 m. Each section contains a filtration system separate from the fish, a cooling unit and an ultraviolet sterilizer. An 80 W UQL lamp completes the lighting of the module lit during the day.
Supplementary material for the paper EXTREME ULTRAVIOLET AND X-RAY DRIVEN PHOTOCHEMISTRY OF GASEOUS EXOPLANETS - Chemical network details
<p>Supplementary material for the paper</p> <p>EXTREME ULTRAVIOLET AND X-RAY DRIVEN PHOTOCHEMISTRY OF GASEOUS EXOPLANETS</p> <p>by Locci et al. 2021, submitted to PSJ (R1 version)</p> <p>This document contains the complete list of the chemical reactions included in the model: bimolecular reactions (neutral-neutral and ion-neutral) in Table 1, termolecular reactions in Table 2, thermodissociative reactions in Table 3, reverse reactions in Table 4, and finally photochemical reactions in Table 5.</p>
Data from: Active regulation of ultraviolet light exposure overrides thermal preference behaviour in eastern fence lizards
<p>1. Over a century of ecophysiological studies on lizards have perpetuated the assumption that basking and shuttling movements between sun and shade function solely for temperature regulation. However, these behaviors also modulate exposure to ultraviolet (UV) wavelengths that are essential for maintaining physiological homeostasis as well as ensuring proper growth and development and enhancing long-term fitness.</p> <p>2. An alternative hypothesis is that lizards also actively regulate their UV exposure. In this scenario, UV needs may even override temperature needs (or vice versa), generating asymmetries in the ability of a lizard to regulate both conditions equally. We test this hypothesis using field and laboratory data collected on adult <em>Sceloporus undulatus</em>.</p> <p>3. We found that <em>S. undulatus</em> actively regulate UV exposure and prioritize UV over temperature, favoring body temperatures much higher than preferred values to sustain preferred UV exposure. In stark contrast, temperature had no reciprocal impact on UV regulation behavior. Our field data support these patterns, suggesting that lizards may even seek out hotter environments despite thermal costs to enhance UV exposure.</p> <p>4. We conclude that <em>S. undulatus</em> actively regulate for UV as well as temperature. Unfortunately, outside of zoos and private hobbyists, appreciation of the importance of UV for ectotherm survival and reproductive success has been minimal. Addressing this deficit will therefore be vital to improve our understanding of the factors shaping the evolution of ectotherm photoregulation behavior in nature.</p>
The dataset for the mechanical parameters of the ultraviolet adhesive polymer-inorganic interfaces
<p>We perform molecular dynamics (MD) simulation with full-atom representation to investigate the mechanical properties of interfaces between polymers, including seven ultraviolet (UV) adhesive polymers and other common polymers, and inorganic substrates (Si, SiO<sub>2</sub>, ZrO<sub>2</sub>). The interfacial mechanical parameters such as strength and energy release rate in the cohesive zone models (CZMs) are calculated from the MD simulations. The typical traction separation and shear deformation are applied to the polymer-inorganic interface. Different interfacial crosslink densities of the polymer-inorganic interfaces are also considered. The dataset provided here can be used as the input for failure prediction and design optimization by the finite element analysis (FEA), for example, layered polymer-inorganic composites used in electronic device packages.</p>
Far-Ultraviolet Photometric Characteristics of JSC-1A and LMS-1 Lunar Regolith Simulants: Comparative Investigations with Apollo 10084
<p>The .txt files listed here contain the data used for Figure 3 and Supplemental Figure S3 of the paper titled "Far-Ultraviolet Photometric Characteristics of JSC-1A and LMS-1 Lunar Regolith Simulants: Comparative Investigations with Apollo 10084." The experimentally derived phase curves are contained in the files which have the material name (JSC-1A, LMS-1, or Apollo 10084) followed by the wavelength alone (Lyman-a, 140 nm, 160 nm) in the file name. All files with "Hapke" in the file name are the Hapke photometric model (Hapke, 2012) fitted phase curves for the associated experimental data. Two of the JSC-1A files have either "LT38" or "GT150" included in the file name; these are the sieved grain size category data referenced in S3.</p> <p>Also included are .txt files of the data points used in Figure 4 for the JSC-1A and LMS-1 simulants. These each have "Fig4" in the file name.</p>
Fig. 3 in Photography in the ultraviolet and visible violet spectra: Unravelling methods and applications in palaeontology
Fig. 3. Bivalves and gastropods photographed under visible, UV, and VV light. A. Venerid bivalve Chamelea gallina (Linnaeus, 1758) from the Lower Pleistocene Arda River section, Italy. MPUM 12161 (ACG204), right valve in external view. In the white rectangles is highlighted a fine zig zag colour pattern. B. Arcoid bivalve Glycymeris nummaria (Linnaeus, 1758) from the Lower Pleistocene Arda River section, Italy. MPUM 12159 (ACG204-4), left valve in external view. C. Conid gastropod Conus sp. from the Holocene Inqitat Khor Rori Archaeological Park, Oman. MPUM 12163 (BS-148) in apical view. These specimens experienced a 72 h immersion in 50% diluted bleach (MPUM 12161 [ACG204]) or pure bleach (MPUM 12159 [ACG204-4], MPUM 12163 [BS-148]). Visible light, without treatment (A1–C1); visible light, bleach treatment (A2–C2); 365 nm, bleach treatment (A3–C3); 440 nm, bleach treatment (A4–C4).
Figure 2 in A powerful new light source for ultraviolet detection of scorpions in the field
Figure 2: Photographs of a prototype LED array lamp. A. Frontal view showing diode array. B. Side view showing lamp housing. Ventilation holes were cut out of the top and bottom walls of the housing, and a small cooling fan was mounted on the bottom surface. Battery power is supplied by the BNC connection on the back. C. Side-by-side comparison of LED and BLB tube lamp housings, showing the substantially reduced profile of the solid-state lamp. Ruler scale: 12 inches.
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International Brain Laboratory public data
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OpenNeuro
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