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1,919 results for “trigger”
Data from: Large herbivores trigger spatiotemporal changes in forest plant diversity
<p class="MsoNormal"><span>Large herbivores can exert top-down control on terrestrial plant communities, but the magnitude, direction, and scale-dependency of their impacts remain equivocal, especially in temperate and boreal forests, where multiple disturbances often interact. Using a unique, long-term and replicated landscape experiment, we assessed the influence of a high density of white-tailed deer (</span><em><span>Odocoileus virginianus</span></em><span>) on the spatiotemporal dynamics of diversity, composition, and successional trajectories of understorey plant assemblages in recently logged boreal forests. This experiment provided a rare opportunity to test </span><span>whether deer herbivory represents a direct filter on plant communities or if it mainly acts to suppress dominant plants which, in turn, release other plant species from strong negative plant-plant interactions. These two hypotheses make different predictions about changes in community composition, alpha and beta diversity in different</span><span> vegetation layers and at different spatial scales. Our results showed that deer had strong effects on plant community composition and successional trajectories, but the resulting impacts on plant alpha and beta diversity patterns were markedly scale-dependent in both time and space. Responses of tree and non-tree vegetation layers were strongly asymmetric. Deer acted both as a direct filter and as a suppressor of dominant plant species during early forest succession, but the magnitude of both processes was specific to tree and non-tree vegetation layers. Although our data supported the </span><span>ungulate-driven </span><span>homogenization hypothesis, </span><span>compositional shifts and changes of alpha diversity were poor predictors of beta diversity loss.</span><span> Our findings underscore the importance of long-term studies in revealing non-linear temporal community trends, and they challenge managers to prioritize particular community properties and scales of interest, given contrasting trends of composition, alpha, and beta diversity across spatial scales.</span></p>
Data and code for: Climate change expected to improve digestive rate and trigger range expansion in outbreaking locusts
<p>Data and code for "Climate change expected to improve digestive rate and trigger range expansion in outbreaking locusts," accepted in <em>Ecological Monographs</em></p>
A gas-only bioreactor system maintains stable culture environments and reveals that moderate pH deviations trigger transcriptome-wide responses in human cells cultured in physioxia and physiological buffers
<p><span>Although pH instability is emerging as a potential driver of changes in cell physiology, pH is still poorly controlled during cell culture and in vitro experiments. Standard procedures include the use of chemicals usually not present in the primary physiological buffering system (CO<sub>2</sub>/HCO<sub>3</sub><sup>-</sup>), such as acids and bases, to manipulate pH levels. This, however, leads to artifacts that potentially affect scientists' findings. </span><span>Here, we propose a novel method for controlling pH levels by relying only on the physiological buffering system. pH was manipulated in a repurposed commercial bioreactor set-up, using a two-sided control loop of CO<sub>2</sub> and N<sub>2</sub> gas in NaHCO<sub>3</sub>--buffered medium. This method produces optimal and stable dO<sub>2</sub> </span><span>profiles and tightly maintains pH levels. With this procedure, we analyzed the effects of different pH levels (6.8, 7.0, 7.2, and 7.4) on the performance and transcriptome of the human GM12878 cell line over a 72-hours experiment. Our results showed that inflammation and negative cellular proliferation are among the signatures activated at low pH. This further highlights the importance of a thorough pH control during cell culture. </span></p>
A cerebellar-prepontine circuit for tonic immobility triggered by inescapable threat
<p>Data from Bhandiwad et al. "A cerebellar-prepontine circuit for tonic immobility triggered by inescapable threat" https://doi.org/10.1101/2021.09.02.458709</p>
WAIS model for "Antarctic Peninsula warming triggers enhanced basal melt rates throughout West Antarctica"
<p>This data set contains the code and input files for WAIS-1080 model, which is based on the Massachusetts Institute of Technology general circulation model (MITgcm), including dynamic/thermodynamic sea-ice model and sub-ice-shelf cavity model for freezing/melting processes.</p> <p>code_was.tar contains source files for compiling model;</p> <p>init.tar and input.tar contain run-time parameter files and binary files for running model</p> <p> </p> <p> </p>
Flooding triggers increased surface activity in a bottom-dwelling turtle
<p>Mexican giant musk turtles (<em>Staurotypus triporcatus</em>) are large, bottom-dwelling turtles in Central America. Following a flooding event, they were frequently seen at the surface, wherease they were never seen prior to the flooding. The data were collected using a motorized canoe to search for turtles at the surface. When possible, notes were made about size. In some cases, it was possible to capture the turtles and measure them. Observations of times, dates, sexes, and sizes of turtles are presented, as well as a measure of search effort (times of day searched and distance of creek searched). Missing values are reported as NA.</p>
Simulation data : Triggering of whistler-mode rising and falling tone emissions in a homogeneous magnetic field
<p>This dataset is obtained from <a href="http://space.rish.kyoto-u.ac.jp/software/">KEMPO1</a> code with minor modifications. This dataset contains simulation data and Python3 code examples. For more details, please refer to README.md.</p>
Dataset for manuscript Precursor-free eruption triggered by edifice rupture at Nyiragongo volcano
<p>This archive file contains datafiles used in "Precursor-free eruption triggered by edifice rupture at Nyiragongo volcano" manuscript. </p> <p>i.e. : Ash Index, Lava flow shp, fractures shp, eruptive fissure shp, GNSS, InSAR, Seismic catalog, SO2 measurmement and Dike Modeling inputs and results.</p>
Foraminiferal insights into the complexities of the turbidity currents triggered by the 2016 Kaikoura Earthquake, New Zealand, Supplementary Appendices
<p>This data set and cluster analysis dendrogram support the published article.</p> <p>Supplementary Appendix 1. Measured foraminiferal data for 2016 Kaikōura turbidite and pre-turbidite samples. </p> <p>Supplementary Appendix 2. Cluster analysis dendrogram of foraminiferal samples based on the relative abundance of tests >125 µm of the key benthic “genera” (Table 2) using Bray Curtis similarity coefficient.</p>
Modulation Analysis of Whistler Mode Sidebands in VLF Triggered Emissions and Implications for Conditions of Nonlinear Growth
<p>A data set from the Siple experiments (Siple Station Antartica) generated on December 8, 1986. A brief explanation of the data:</p> <p>We investigated one particular 35.5 second record that shows the repeated generation of sidebands. This record, occurring on December 8, 1986 during 14:24:29.30 UT -14:24:64.80 UT was triggered by the transmission of a constant amplitude and constant frequency “key down” tone at 2.7 kHz which, remarkably, was observed as 17 individual ∼2 second packets with sidebands and triggered free running emissions in the conjugate region. </p> <p>To open the data, you will need the files - matGetVariable.m AND matGetHeader.m.</p>
Cooperative circumnavigation with event-triggered bearing measurements
<p>This demonstration shows a team of Aerial Robotic Workers (ARW)s performing a circumnavigation mission. The ARWs circumnavigate a virtual target whose position is progressively estimated by means of event-triggered bearing measurements.</p> <p>The control objective is that the ARWs circumnavigate the target at a desired speed, while forming a regular polygon around the target.</p> <p>Each ARW maintains a running estimation of the position of the target, which is updated every time a new bearing measurement is taken. New bearing measurements are triggered with a recursive law that guarantees that the estimated position converges to the real position of the virtual target.</p> <p>Each ARW intermittently monitors the relative position of the ARW that precedes it in the circumnavigation, and adjusts its circumnavigation speed according to such relative position. This control logic allows the ARW to converge to a regular polygon around the target.</p> <p>The control algorithm is implemented on a ROS architecture where the controller of each ARW corresponds to a different ROS node.</p>
Solvent-triggered shape change in gradient-based 4D printed bilayers: case study on semi-crystalline polymer networks
<p>This dataset comes from the following paper:</p> <p>Lorenzo Bonetti, Aron Cobianchi, Daniele Natali, Stefano Pandini, Massimo Messori, Maurizio Toselli, Giulia Scalet, Solvent-triggered shape change in gradient-based 4D printed bilayers: case study on semi-crystalline polymer networks, Soft Matter, 2024. <a href="https://doi.org/10.1039/D4SM00304G" target="_blank" rel="noopener">https://doi.org/10.1039/D4SM00304G</a></p> <p>It contains:</p> <ul> <li>"Notes.pdf" describing all the files uploaded</li> <li>.xls files of the experimental data</li> <li>. m of the theoretical computations</li> </ul>
Data Release Scrutinising evidence for the triggering of Active Galactic Nuclei in the outskirts of massive galaxy clusters at z~1
<p>Dataset of the paper "Scrutinising evidence for the triggering of Active Galactic Nuclei in the outskirts of massive galaxy clusters at z~1".</p> <p> </p> <p>All the necessary code to deal with these data can be found at: https://github.com/IvanMuro/agn_frac_data_release</p>
Investigation of Oil Well Blowouts Triggered by Wastewater Injection in the Permian Basin, USA.
<p>This dataset is a part of research work titled: "Investigation of Oil Well Blowouts Triggered by Wastewater Injection in the Permian Basin, USA."</p> <p>Authors: <br>Vamshi Karanam, Zhong Lu, Jin-Woo Kim, Roger P Denlinger</p> <p><br>The folder contains six datasets. They are explained in detail below.</p> <p>1. Deformation rate map<br>filename: deformation_rate.geojson<br>The data can be accessed using QGIS, ArcGIS or other GIS software<br>The attribute table contains:<br>field_0: point number<br>field_1:Code<br>field_2:height<br>field_3: height standard deviation<br>field_4:deformation rate (mm/yr)<br>field_5:standard deviation of deformation rate<br>field_6: Coherence<br>field_7: effective area</p> <p><br>2. Monthly njection volumes<br>filename: injection_volumes.geojson<br>The data can be accessed using QGIS, ArcGIS or other GIS software<br>The attributes table contains:<br>field_0: API Number<br>field_1 to field_150: Monthly injection volumes from 20100101 to 20220601 (m^3)<br>field_151: Longitude<br>field_152 : Latitude</p> <p><br>3. Depth to the top of formations<br>filename: main_formations_new.geojson<br>The data can be accessed using QGIS, ArcGIS or other GIS software<br>The attribute table contains:<br>field_0: API Number<br>field_1 to field_12: Depth to top of different formations (m)<br>field_13: True depth of the well (m)<br>field_14: Latitude<br>field_15: Longitude</p> <p><br>4. Blowout Modeling results<br>This dataset contains six files as follows:<br>i. blowout_bestfit_alpha.mat: best fit parameters for the Modeling of sill alpha. <br>ii. blowout_bestfit_alpha_summary.mat: summary of the best fit parameters for the Modeling of sill alpha<br>iii. blowout_bestfit_beta.mat: best fit parameters for the Modeling of sill beta<br>iv. blowout_bestfit_beta_summary.mat: summary of the best fit parameters for the Modeling of sill beta<br>v. blowout_bestfit_results.csv: Best fit results of the penny crack modeling. The csv file contains five columns: Longitude, Latitude, Observed deformation, Modeled deformation and Residual<br>vi. blowout_input_data.mat: Input data for the modeling of blowout. The mat file contains five files. InSAR Phase (Phase), Incidence angle (Inc), Heading angle (Heading), Longitude (Lon), Latitude (Lat)</p> <p><br>5. Cumulative uplift Modeling results<br>This dataset contains six files as follows:<br>i. uplift_bestfit_alpha.mat: best fit parameters for the Modeling of sill alpha. <br>ii. uplift_bestfit_alpha_summary.mat: summary of the best fit parameters for the Modeling of sill alpha<br>iii. uplift_bestfit_beta.mat: best fit parameters for the Modeling of sill beta<br>iv. uplift_bestfit_beta_summary.mat: summary of the best fit parameters for the Modeling of sill beta<br>v. uplift_bestfit_results.csv: Best fit results of the penny crack modeling. The csv file contains five columns: Longitude, Latitude, Observed deformation, Modeled deformation and Residual<br>vi. uplift_input_data.mat: Input data for the modeling of cumulative uplift. The mat file contains five files. InSAR Phase (Phase), Incidence angle (Inc), Heading angle (Heading), Longitude (Lon), Latitude (Lat)</p> <p>6. Metadata for the Sentinel-1 datasets used in this study</p> <p>i. sentinel_1_datasets_descending.csv: CSV file with filenames, date of acquisition and other metadata along with URL to access the datasets in descending geometry</p> <p>ii. sentinel_1_datasets_ascending.csv: CSV file with filenames, date of acquisition and other metadata along with URL to access the datasets in ascending geometry</p>
Fig. 3 in Phylogenetic placement of a new paleoendemic pill scarab from the Udzungwa Mountains, Tanzania, triggers biogeographic interpretations (Coleoptera: Hybosoridae, Ceratocanthinae)
Fig. 3 – Habitus of select ingroup and outgroup pill scarabs, dorsal view; images are to scale.
Fig. 1 in Sucrose triggers honeydew preference in the ghost ant, Tapinoma melanocephalum (Hymenoptera: Formicidae)
Fig. 1. Experimental apparatus used to evaluate foraging preferences of ghost ants.
Underground measurement of magnetic field pulses during the early stage of rocket-triggered lightning
<p>raw data for the paper <em>Underground measurement of magnetic field pulses during the early stage of rocket-triggered lightning. </em></p>
Electron Captures on 14N as a Trigger for Helium Shell Detonations
<p>MESA inlists, run_star_extras and patches associated with <a href="https://ui.adsabs.harvard.edu/?#abs/2017ApJ...845...97B">Bauer et al. (2017)</a>. MESA version 8118.</p> <p>Publication DOI: <a href="https://doi.org/10.3847/1538-4357/aa7ffa">10.3847/1538-4357/aa7ffa</a></p>
Asteroseismology of the nearby SN II Progenitor Rigel. II. epsilon-mechanism Triggering Gravity-mode Pulsations?
<p>MESA inlist associated with <a href="https://ui.adsabs.harvard.edu/?#abs/2012ApJ...749...74M">Moravveji et al. (2012)</a>. MESA version 3723.</p> <p>Publication DOI: <a href="https://doi.org/10.1088/0004-637X/749/1/74">10.1088/0004-637X/749/1/74</a></p>
Data from "Comprehensive observations of the wire destruction and plasma channel reestablishment process during the initial stage of triggered lightning"
<p>The attached is the dataset assoicated with the paper titled "Comprehensive observations of the wire destruction and plasma channel reestablishment process during the initial stage of triggered lightning" which was submitted to <em>Geophysical Research Letters</em> . The data can be used freely for scientific purposes with appropriate citation.</p>
ScienceDex guides
Understand access before you commit
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.