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1,018 results for “past”
Figure 4 from: Baker E, Johnson K, Young J (2011) The future of the past in the present: biodiversity informatics and geological time. ZooKeys 150: 397-405. https://doi.org/10.3897/zookeys.150.2350
Figure 4 - An example Sample record from IPAEG showing user-linked/edited age ranges (above) and calculated union and intersection dates (below).
Figure 3 from: Ball-Damerow JE, Oboyski PT, Resh VH (2015) California dragonfly and damselfly (Odonata) database: temporal and spatial distribution of species records collected over the past century. ZooKeys 482: 67-89. https://doi.org/10.3897/zookeys.482.8453
Figure 3 - Relationship between species richness and total number of records by county, where each point represents a California county.
Figure 5 from: Ball-Damerow JE, Oboyski PT, Resh VH (2015) California dragonfly and damselfly (Odonata) database: temporal and spatial distribution of species records collected over the past century. ZooKeys 482: 67-89. https://doi.org/10.3897/zookeys.482.8453
Figure 5 - Number of unique county records for each collection type (Calbug collaborating institutions, non-Calbug institutions, observations - Cal Odes and Odonata Central, and private collections), and number of unique county records with two, three, and four shared data types.
Three-dimensional dataset of hydrating cement paste (CEM I Ladce, 391 m^2/kg Blaine, w/c=0.35) in TIFF format
<p>A detailed description of this dataset can be found in <a href="https://doi.org/10.1016/j.dib.2023.108903">https://doi.org/10.1016/j.dib.2023.108903.</a></p> <p>This dataset contains a collection of digitized three-dimensional hardened cement paste microstructures obtained from X-ray micro-computed tomography, screened after approx. 1, 2, 3, 4, 7, 14, and 28 days of elapsed hydration at 20˚C in saturated conditions. Each paste specimen had a cylindrical shape (with a diameter of ~1 mm) and was screened at a designated time (as specified in the file name, e.g. “t23hrs”=23 hours of elapsed hydration) and finally saved as an uncompressed and unprocessed *.tif greyscale image data file in 16-bit image depth (as unsigned integers) using a little-endian byte sequence.</p> <p>The dataset contains two sets of images:</p> <p>- “full-sized” digital images stored in a three-dimensional voxel-based matrix with a fixed size of 1100x1100x1100 voxels, denoted as “CEM_I_Ladce_*” in the file name; each file size amounts to ~2.5 GB and contains the whole screened specimen with a variable voxel size in the range 1.0913 − 1.1174 µm depending on the particular specimen (as specified in the file name, e.g. “1d1174um”=1.1174 µm/voxel)</p> <p>- smaller image subvolumes, denoted as Region Of Interest (ROI), extracted from the interior of the full-sized specimen from an arbitrary location, and denoted as “filteredROI_*” in the file name; this cropped ROI has a cubic shape and stores a three-dimensional voxel-based matrix with a fixed size of 500x500x500 µm<sup>3</sup> constituted by a variable voxel count (given the fluctuating voxel size for each specimen, see above). Both the exact voxel count (i.e. three-dimensional matrix dimensions) and voxel size are further specified in each file name. A sequence of imaging filters was sequentially applied to this ROI to further enhance the contrast among the different microstructural phases, see <a href="https://doi.org/10.1016/j.cemconcomp.2022.104798">10.1016/j.cemconcomp.2022.104798</a> for details.</p> <p>Note that the same dataset stored in *raw format is available from <a href="https://doi.org/10.5281/zenodo.7193501">https://doi.org/10.5281/zenodo.7193501</a></p>
FIGURE 1 in A fossil flat wasp (Hymenoptera: Bethylidae) from the early Eocene Green River Formation suggests past cosmopolitan distribution of the genus Eupsenella Westwood, 1874
FIGURE 1. Photograph of Eupsenella sp., specimen UCM 58339 (scale bar = 1 mm).
Data from: Informing conservation strategies with museum genomics: Long-term effects of past anthropogenic persecution on the elusive European wildcat
<p>Like many carnivore species, European wildcats (<em>Felis silvestris</em>) have suffered severe anthropogenic population declines in the past, resulting in a strong population bottleneck in the beginning of the 20th century. In Germany, the species has managed to survive its near-extinction in small isolated areas and is currently recolonizing former habitats owing to legal protection and concerted conservation efforts. Here, we SNP genotyped and mtDNA sequenced 56 historical and 650 contemporary samples to assess the impact of massive persecution on genetic diversity, population structure and hybridization dynamics of wildcats. Spatiotemporal analyses suggest that the presumed postglacial differentiation between two genetically distinct metapopulations in Germany is in fact the result of the anthropogenic bottleneck followed by re-expansion from few secluded refugia. We found that, despite the bottleneck, populations experienced no severe genetic erosion, nor suffered from elevated inbreeding or showed signs of increased hybridization with domestic cats. Our findings have significant implications for current wildcat conservation strategies, as the data analyses show that the two presently recognized wildcat population clusters should be treated as a single conservation unit. Although current populations appear under no imminent threat from genetic factors, fostering connectivity through the implementation of forest corridors will facilitate the preservation of genetic diversity and promote long-term viability. The present study documents how museum collections can be used as essential resource for assessing long-term anthropogenic effects on natural populations, e.g., regarding population structure and the delineation of appropriate conservation units, potentially informing todays' species conservation.</p>
Codes and data related to the article: Renard (2023). Use of a National Flood Mark Database to Estimate Flood Hazard in the Distant Past. Hydrological Sciences Journal.
<p>This package contains R codes and data related to the article:</p> <p>B. Renard. 2023. Use of a National Flood Mark Database to Estimate Flood Hazard in the Distant Past<em>. Hydrological Sciences Journal</em>. DOI: <a href="https://doi.org/10.1080/02626667.2023.2212165">10.1080/02626667.2023.2212165</a></p> <p><strong>CONTENTS</strong></p> <p>R scripts used to set up models, analyse results and prepare figures.</p> <ul> <li>France207_MAX.RData contain monthly maxima at 207 stations. See references below for the original sources.</li> <li>Folder data_raw/ contain exports from the flood marks database. See references below for the original sources.</li> <li>funk.R is a library of functions used by other scripts.</li> <li>0_setUp.R prepares the runs to estimate the model for one component. Estimation is performed using the RSTooDs package (<a href="https://zenodo.org/record/5075760">https://zenodo.org/record/5075760</a>). This script extracts the data, specifies the probabilitic models and write STooDs configuration files.</li> <li>1_margin.R analyses the runs that have been performed and estimates marginal distributions at each station. Note that the runs set up in the previous point need to have been performed before using this script.</li> <li>2_probMap.R computes estimated flood probabilities over the whole 1705-2015 period. The previous script needs to have been run before.</li> <li>3_sensitivityAnalysis.R prepares configuration files for sensitivity analysis experiments.</li> <li>4_ZenodoRelease.R prepares the released data and probability maps. The previous scripts needs to have been run before.</li> <li>Scripts named fig_XXX.R create the figures shown in the article.</li> </ul> <p><strong>REFERENCES</strong><br> Streamflow series at stations: <a href="https://www.hydro.eaufrance.fr/">https://www.hydro.eaufrance.fr/</a><br> developed by the "Service central d’hydrométéorologie et d’appui à la prévision des inondations" (Schapi) from the Ministry of the Ecological Transition</p> <p>Flood marks database: <a href="https://www.reperesdecrues.developpement-durable.gouv.fr/">https://www.reperesdecrues.developpement-durable.gouv.fr/</a><br> developed by the flood forecasting network "Vigicrues" from the Ministry of the Ecological Transition</p> <p> </p>
Classification and visualization of knowledge:light from a forgotten past
<p>This paper is based on an ongoing project to investigate how knowledge has been visualized in different times and places. Its focus is on how, over the fourth to the sixteenth centuries in Europe, literate societies used mental images to support memory in visualizing and classifying the knowledge embodied in texts, in order to make it part of their own knowledge store, to organize it for retrieval, and finally to create and communicate new knowledge.<br> In this paper I:<br> ● define information and knowledge and their visualization, and propose a model of their relationship and the processes involved;<br> ● identify critical stages in the interaction between humans and technologies to support these activities;<br> ● note close analogies between earlier practice and what would today be termed information design;<br> ● suggest the relevance of these ideas and practices to today’s problems of organizing and communicating knowledge, and propose some practical approaches to making use of them</p>
Fig. 2 in An overview of acyclotides: Past, present and future
Fig. 2. Proportion of acyclotides and cyclotides in six angiosperm families.
Supplementary materials for: Variable slip mode in the past 3300 years on the fault ruptured in the 2012 M 5.6 Pernik slow earthquake in Bulgaria
<p>Supplementary materials for the paper<br> Variable slip mode in the past 3300 years on the fault ruptured in the 2012 M 5.6 Pernik slow earthquake in Bulgaria<br> submitted to Natural Hazards.</p> <p>The Supplementary materials contain high-resolution photomosaics of the trench excavated on the Meshtitsa fault, a X-ray diffractogram, locations of the ground cracks observed after the 2012 Pernik earthquake in a Keyhole Markup Language (KML) file format, and resistivity data collected across the Meshtitsa fault scarp in the format used by the Boundless Electrical Resistivity Tomography (BERT) software.</p>
Fluid simulation of laminar flow past a cylinder
Open the record for dataset details and reuse information.
A Comparison of Lamivudine and Zidovudine, Used Alone and Together, in HIV-Infected Patients Who Have Not Used Zidovudine in the Past
ClinicalTrials.gov study NCT00002320. IPD Sharing: Not stated. Countries: 3. Publications: 2.
Efficacy of Guedes-Pinto Paste and CTZ Paste in the Non-instrumental Endodontic Treatment of Primary Teeth
ClinicalTrials.gov study NCT04587089. IPD Sharing: Not stated. Countries: 0. Publications: 1.
Role of Propolis Paste in Preventing Pain After Root Canal Treatment.
ClinicalTrials.gov study NCT03723980. IPD Sharing: UNDECIDED. Countries: 1. Publications: 0.
Prophylactic Antiviral Therapy in Patients With Current or Past Hepatitis B Virus Infection Receiving Anti-Cancer Therapy for Solid Tumors
ClinicalTrials.gov study NCT03887702. IPD Sharing: Not stated. Countries: 2. Publications: 0.
Clinical and Radiographic Evaluation of the Synergistic Effect of Nano Silver Particles and Calcium Hydroxide Versus Triple Antibiotic Paste as Antibacterial Agents for Lesion Sterilization and Tissue
ClinicalTrials.gov study NCT05681221. IPD Sharing: Not stated. Countries: 0. Publications: 5.
Effects of Mindfulness Training on Memories of Personal Past Events
ClinicalTrials.gov study NCT05121116. IPD Sharing: NO. Countries: 1. Publications: 0.
NUPRO Sensodyne Prophylaxis Paste With NovaMin Sensitivity Relief Study
ClinicalTrials.gov study NCT01669785. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Prophylactic Entecavir for HBV Reactivation in Past HBV Infected Patients With Hematopoietic Stem Cell Transplantation
ClinicalTrials.gov study NCT04942886. IPD Sharing: NO. Countries: 1. Publications: 0.
NEAT!2 Sedentary Behavior Reduction for Individuals With Past or Present Knee Symptoms, Injuries, or Surgeries
ClinicalTrials.gov study NCT03987932. IPD Sharing: NO. Countries: 1. Publications: 0.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.