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8,565 results for “characterization”
Dataset for "Species diversity and molecular characterization of Alternaria section Alternaria isolates collected mainly from cereal crops in Canada" by Jeremy R. Dettman, Quinn Eggertson, and Natalie E. Kim
<p>Dataset consists of three files, each containing aligned nucleotide sequences from 559 Alternaria strains. The three sequenced loci are ASA-10, ASA-19, and rpb2. Strain names are stated in the header of each sequence.</p>
Characterizing ground and surface fuels across Sierra Nevada forests shortly after the 2012–2016 drought
<p>These files include the main processed data and R script used in the analysis for the publication <strong>Characterizing ground and surface fuels across Sierra Nevada forests </strong><strong>shortly after the 2012</strong>–<strong>2016 drought </strong>accepted in the journal Forest Ecology and Management.</p> <p><strong>Abtract</strong></p> <p>The 2012–2016 hotter drought in the Sierra Nevada, California, USA led to the mortality of millions of trees. This disruption to the disturbance regime is an example of how climate extremes can exacerbate current and future wildfire risks. In this study, we used data from an extensive network of forest plots across 13 different sites in the Sierra Nevada to characterize ground (i.e., duff) and surface fuels and their potential drivers shortly after the drought (2016–2018), but before snag (standing dead tree) fall associated with this massive tree mortality event occurred. Overall, we found high biomass of fuels for most sites (138.2 ± 21.7 Mg ha-1, Mean ± 95% CI), especially in areas lacking recent fire or active management, with values up to five times higher than estimates for pre-settlement conditions for mixed-conifer forests in the region. Four major groups of forest overstory structure were identified with some distinct fuel characteristics. These ranged from a cluster of ponderosa pine (Pinus ponderosa Douglas ex Lawson)-dominated plots with the highest density of snags, lowest live tree basal area, and lowest total ground and surface fuel biomass (mean = 90.1 Mg ha-1) to a group of giant sequoia (Sequoiadendron giganteum (Lindl.) J. Buchholz)-dominated plots with the highest live tree basal area and highest total fuel biomass (mean = 547.6 Mg ha-1). Although we found relatively weak relationships between forest characteristics and fuel loads, their inclusion in a model selection framework that also considered biophysical variables and disturbance history explained more than 80% of the observed variation in litter + fine woody debris loads. The baseline fuel conditions described here will not only inform the management of drought-impacted forests in the Sierra Nevada, but also help identify key drivers of fuel succession in a changing environment. </p>
Supplementary Material from: Spatial characterization of the rotifer Community in a reservoir in the Northeast
<p>Supplementary Material for the paper: <strong>Spatial characterization of the rotifer Community in a reservoir in the Northeast </strong>submitted to Acta Liminologica Brasiliensia.</p>
Site characterization, water balance modeling, and regeneration attributes of managed and unmanaged ponderosa pine sites in the southwestern United States
<p>This dataset contains biotic and abiotic site characterization data and SOILWAT2 water balance model simulation outputs (two daily outputs: 1915-2011, 1980-2020) for 77 ponderosa pine forest sites in the southwestern United States. Data were collected in summer 2019 and summer 2021. Overviews of the sampling and modeling methodologies are detailed in the following publications:</p> <p>Pirtel NL, Bradford JB, Hubbard RM, Abella SR, Kolb TE, Litvak ME, Porter SL and Petrie MD. 2021. The aboveground and belowground growth characteristics of juvenile conifers in the southwestern United States, Ecosphere 12: e03839, doi:10.1002/ecs2.3839.</p> <p>Petrie MD, Hubbard RM, Bradford JB, Kolb TE, Moser WK, Noel A, Schlaepfer DR, Bowen MA, Fuller LR and Moser WK. 2023. Widespread regeneration failure in ponderosa pine forests of the southwestern United States, Forest Ecology and Management: in press.</p> <p> </p>
Maneuverability Characterization of Autonomous Surface Vehicle (ASV): ITTC zig-zag test dataset
<p>The two files refer to the same dataset: the .csv file is the raw format that is acquired by the ASV robotic platform. The .nc file contains the same data but in a standard format and with global and variable metadata generated using a standardization workflow (based on FAIR Principles) developed at CNR INM which uses controlled and standard vocabularies (ACDD and standard CF).</p> <p>The data refer to the execution of zig-zag maneuvers of the ASV following the ITTC standards</p>
APPENDIX 1 in Molecular characterization and morpho-taxonomy of Gambierdiscus caribaeus Vandersea, Litaker, M.A.Faust, Kibler, W.C.Holland & P.A.Tester (Dinophyceae) from Mauritius Island, South-West Indian Ocean
APPENDIX 1. — Scanning electron micrographs of Gambierdiscus caribaeus Vandersea, Litaker, M.A.Faust, Kibler, W.C.Holland & P.A.Tester (ISOG4) with aberrant forms: A, ventral view of globular shape cell; B, apical view showing cell with protruding plates. Scale bars: 10 µm.
FIG. 4 in Molecular characterization and morpho-taxonomy of Gambierdiscus caribaeus Vandersea, Litaker, M.A.Faust, Kibler, W.C.Holland & P.A.Tester (Dinophyceae) from Mauritius Island, South-West Indian Ocean
FIG. 4. — Phylogenetic analysis of the Gambierdiscus caribaeus Vandersea, Litaker, M.A.Faust, Kibler, W.C.Holland & P.A.Tester (ISOG4), showing alignment of D1-D2 LSU rDNA sequences using Bayesian inference and Maximum likelihood analyses. Values at nodes represent Bayesian posterior probability support and Bootstrap support. - represents unsupported value. Scale bar is substitution per site.
FIG. 2 in Molecular characterization and morpho-taxonomy of Gambierdiscus caribaeus Vandersea, Litaker, M.A.Faust, Kibler, W.C.Holland & P.A.Tester (Dinophyceae) from Mauritius Island, South-West Indian Ocean
FIG. 2. — Light and scanning electron micrographs of Gambierdiscus caribaeus Vandersea, Litaker, M.A.Faust, Kibler, W.C.Holland & P.A.Tester (ISOG4): A, light micrograph of Gambierdiscus caribaeus Mauritian strain; B, scanning electron micrograph of apical view; C, scanning electron micrograph of antapical view; D, scanning electron micrograph of inside top view of thecal plate pores. Scale bars: A, 50 µm; B, C, 10 µm; D, 100 nm.
Composition and structure of Mediterranean shrublands for fuel characterization
<p>The Catalan Forest Fire Prevention Service (SPIF) and the Forest Science and Technology center (CTFC) present a relational database containing detailed and accurate information of woody composition and structure of shrub-like formations in the permanent 100-m<sup>2</sup> shrubland plots distributed in the NE of Iberian peninsula. The datasets provide valuable information to improve fire danger prediction, to study vegetation dynamics in relation to drought and fire, or to test aerial-based methodologies with ground-based information. </p> <p>The database includes information gathered in two projects: Combuscat and MatoSeg. <strong>Combuscat, </strong>with 571 100-m<sup>2</sup> plots, aimed to characterize shrubland structure and fuel load in Catalonia and was carried out by forest specialist members of Catalan Forest Rangers (Cos d’Agents Rurals, Generalitat de Catalunya). <strong>MatoSeg</strong> aimed to complement the database with information on vascular plant composition at different scales (1-m<sup>2</sup>,100-m<sup>2</sup>, and 400-m<sup>2</sup> ) collected in a set of 24 plots: 13 plots in Catalonia, and 11 in the nearby regions of Aragon and Valencia.</p> <p> </p>
Data set from "A free-space interferometer design for optical frequency dissemination and out-of-loop characterization below the 10^{-21}-level"
<p>The data set contains the data underlying the improved out-of-loop interferometer layout performance evaluation published in Photonics Research (<a href="https://doi.org/10.1364/PRJ.485899">https://doi.org/10.1364/PRJ.485899</a>). The experimental setup and the methodology used is explained in that publication.</p> <p>The data is stored in the Matlab(R)-native file format. This proprietary file format is also readable by other numerical computing environments.</p> <p><br> The files 'data_i_*_S*.mat' contain the timeseries of the analysed continuous measurement runs in configuration S*. Each of these files includes the following variables:</p> <p>year, month, day, hour, minute, second: date at which the measurment point was acquired<br> rem_float, rem: observed 1s Lambda-averaged out-of-loop frequency deviation in Hz as float and string, respectively<br> p: measured air pressure in hPa<br> T: measured laboratory temperature inside the cover close to the interferometer in °C<br> pressure_phase_OOL: phase variations of the out-of-loop signal estimated from the measured pressure variations<br> temp_phase_OOL: phase variations of the out-of-loop signal estimated from the measured temperature variations</p> <p> </p> <p>Different barometers have been used for the pressure mesaurements. In the measurement runs for the S1 and S2PM configurations, a barometer placed in a neighboring laboratory in the same building at PTB was used to characterize pressure fluctuations. For the measurement in the S2 configuration, we used air pressure data from the climate station of the department of Hydrology and River Basin Management of the Technical University Braunschweig, which is ≈6km apart. At times of overlapping operation, we have observed matching pressure instabilities of both barometers for averaging times 𝜏>1000s, which shows that on these averaging times the exact placement of the barometer is of lesser importance.</p>
Experimental characterization of TERIPHIC 4-fold and 8-fold InP photodiode arrays - Detection of 50Gbaud signals with NRZ and PAM-4 modulation formats
<p>The data sets refer to the results from the experimental characterization of the TERIPHIC 4-fold and 8-fold InP-photodiode arrays, which operate in the O-band. The experimental setup consisted of a commercially available off-the-shelf (COTS) laser source, a COTS Mach-Zehnder modulator, and the TERIPHIC PD arrays. For the purposes of the experiments, signals with NRZ and PAM-4 modulation formats and 50 Gbaud symbol rates were generated, transmitted, and detected by the TERIPHIC photodetectors. Two different subassemblies were evaluated. The first subassembly had four InP photodiodes and the second eight. The generated photocurrents were sampled by a real-time oscilloscope with a 256 Gbaud sample rate. The data sets are actually the samples extracted from the oscilloscope. The data sets have a filename in the format “Symbol rate#Modulation formats#PDn#Transmission length#version#Subassemblyn.bin”, where<br> Symbol rate = 50 Gbaud<br> PDn, for n= 1,2, ...,8<br> Transmission length = B2B (0 km), 2 km, and 10 km<br> Subassembly for n=1 and 2<br> <br> The data sets are parts of the Open data management plan of the TERIPHIC ICT project (GA No. 825502)</p>
Experimental characterization of TERIPHIC quad InP EML array - Generation and transmission of 50Gbaud signals with NRZ and PAM-4 modulation formats
<p>The data sets refer to the results from the experimental characterization conducted on the TERIPHIC quad InP-EML array, which operates in the O-band. Each EML incorporates a DFB laser, an Electroabsorption modulator, and a Semiconductor Optical Amplifier to provide additional power boost, all on the same die. Three out of the four EMLs were characterized successively and generated signals at symbol rates of 50 Gbaud and transmitted them over various fiber lengths. The modulated optical signals were detected by a single commercially avalaible photodetector with more than 70 GHz 3-dB bandwidth. The generated electrical signals were then sampled by a real-time oscilloscope with a 256 Gbaud sample rate. A low-pass filter with a 50 GHz 3-dB cut-off frequency was digitally applied to the oscilloscope to improve the signal-to-noise ratio.<br> The data sets have a filename in the format “Symbol rate#Modulation formats#EMLn#Transmission length#version.bin”, where<br> SYmbol rate = 50 Gbaud<br> EMLn, for n= 2, 3, 4<br> Transmission length = B2B (0 km), 2 km, and 10 km<br> Version: v1, v2 and v3. Same operating parameters but at different time index<br> <br> The data sets are parts of the Open data management plan of the TERIPHIC ICT project (GA No. 825502)</p>
Data for: Using radio frequency identification (RFID) technology to characterize nest site selection in wild Japanese tits (Parus minor)
<p>Selecting a suitable nest site is critical to the survival and reproduction of birds. Prospecting allows individuals to gather information on the local quality of potential future breeding sites, which may help them make the best nest site selection decision. However, few studies have focused on the direct links between the prospecting activity of breeders and subsequent nest site selection. In this study, we investigated the prospecting pattern of Japanese tits (<em>Parus minor</em>) during the pre-breeding period of the first breeding attempt and whether nest site characteristics influence their nest box visiting behaviour and occupied nest site. We used radio frequency identification (RFID) to track the movements of Japanese tits visiting nest boxes and compared nest site characteristics between visited and unvisited (control) nest boxes, as well as between visited and occupied nest boxes. We found that Japanese tits started visiting nest boxes approximately 20 days before breeding, visited an average of 6 nest boxes and eventually chose the most visited nest box for breeding activities. Japanese tits were more likely to visit nest boxes that had less canopy cover and lower shrub density but a greater total number of surrounding trees and ultimately chose breeding nest boxes with a smaller entrance inclination, in nesting trees with a larger diameter at breast height (DBH) which were surrounded by trees with a larger DBH. Our results suggest that Japanese tits visit several potential breeding sites before choosing breeding nest boxes and that nest site characteristics can influence their prospecting activity and nest site selection.</p>
Figure 4 in Characterizing Environmental Change and Species' Histories from Stratified Faunal Records in Southeastern Australia: A Regional Review and a Case Study for the Early to Middle Holocene
Figure 4. Selected species representations at WJ99. Species are sorted by those that show decline into the Holocene (blue), those whose values generally do not show particular decline or increase during the Holocene Climatic Optimum (gold), and those whose numbers appear to be affected—decline or increase—during the Holocene Climatic Optimum (red). Grey shading indicates approximate timing of peak Holocene Climatic Optimum conditions.
Figure 1 in Characterizing Environmental Change and Species' Histories from Stratified Faunal Records in Southeastern Australia: A Regional Review and a Case Study for the Early to Middle Holocene
Figure 1. Map of SE Australian Alps and region, indicating locations of sites with faunal material mentioned in text.
Figure 3 in Characterizing Environmental Change and Species' Histories from Stratified Faunal Records in Southeastern Australia: A Regional Review and a Case Study for the Early to Middle Holocene
Figure 3. Summary of known environmental shifts during the early to middle Holocene from SE Australia, chronologically related to notable temporal changes within (and environmental inferences from) the faunal composition of WJ99. * Approximate calibrated date ranges inferred from original uncalibrated dates.
Figure 2 in Characterizing Environmental Change and Species' Histories from Stratified Faunal Records in Southeastern Australia: A Regional Review and a Case Study for the Early to Middle Holocene
Figure 2. Representative (east and south) sections of WJ99 Square 10B, showing locations of AMS radio-
BeMAGIC_Structural characterization of magnetoelectric materials
<p>BeMAGIC ITN (GA861145) Structural characterization of magnetoelectric materials. Results from UAB, UCAM, TUC, AALTO and KIT</p>
Characterization of mAMCase sugar-binding subsites
<p>This directory contains all files required to characterize sugar-binding subsites across mouse AMCase structure 8FR9, 8FRA, and 8GCA as presented in <strong>Figure 2</strong> of <a href="https://www.biorxiv.org/content/10.1101/2023.06.03.542675">Díaz et al.<em> </em>(2023)</a>.</p> <p>Structure models were analyzed in PyMOL. Figures were compiled using Adobe Illustrator.</p> <p> </p> <p>Files included in this directory:</p> <p><strong>Figures</strong></p> <p>- contains PNGs of all sugar-binding subsites, canonical subsites, and noncanonical subsites with and without 2fo-fc electron density displayed.</p> <p> </p> <p><strong>PyMOL</strong></p> <p>- contains all structural models, 2mFo-DFc maps, mFo-DFc maps, PyMOL script, and PyMOL session used to generate <strong>Figure 2</strong>.</p> <p> </p> <p>Contact:<br> Roberto Efraín Díaz, robertoefrain.diaz@ucsf.edu</p> <p>James Fraser, jfraser@fraserlab.com</p>
Time/frequency-domain characterization of a mid-IR DFG frequency comb via two-photon and heterodyne detection: datasets
<p>This archive contains the datasets used for generating the plots shown in the paper entitled "Time/frequency-domain characterization of a mid-IR DFG frequency comb via two-photon and heterodyne detection", authored by Tecla Gabbrielli, Giacomo Insero, Michele De Regis, Nicola Corrias, Iacopo Galli, Davide Mazzotti, Paolo Bartolini, Jeong Hyun Huh, Carsten Cleff, Alexander Kastner, Ronald Holzwarth, Simone Borri, Luigi Consolino, Paolo De Natale, and Francesco Cappelli. </p> <p>A README file describing the contained data and how to elaborate them is also provided. </p> <p> </p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.