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6,569 results for “Long-term”
Figure 3 in Actionable, long-term stable and semantic web compatible identifiers for access to biological collection objects
Figure 3. CETAF stable HTTP URIs in the GBIF data portal. The Global Biodiversity Information Facility (GBIF) publishes CETAF stable HTTP URIs via their data portal.
Figure 2 in Actionable, long-term stable and semantic web compatible identifiers for access to biological collection objects
Figure 2. Basic redirection mechanisms. Human users are redirected to a human-readable web-representation of the specimens. Software systems are re-directed to a machine-readable metadata record.
Replication data for Chen and Khanna. (Global Environmental Change Advances, 2024), "Heterogeneous and Long-Term Effects of a Changing Climate on Bird Biodiversity"
<p>This dataset contains code and data to replicate the results for "Heterogeneous and Long-Term Effects of a Changing Climate on Bird Biodiversity" by Luoye Chen and Madhu Khanna.</p>
Dataset for the validation of the Delirium Observation Screening Scale in long-term care facilities in Flanders
Open the record for dataset details and reuse information.
Long-term decrease in colouration: A consequence of climate change?
<div>Climate change has been shown to affect fitness-related traits in a wide range of taxa; for instance, warming leads to phenological advancements in many plant and animal species. The influence of climate change on social and secondary sexual traits, that are associated with fitness due to their role as quality signals, is however unknown. Here, we use more than 5800 observations collected on two Mediterranean blue tit subspecies (<em>Cyanistes caeruleus caeruleus </em>and <em>C. c. ogliastrae</em>) to explore whether blue crown and yellow breast patch colourations have changed over the past 15 years. Our data suggests that colouration has become duller and less chromatic in both sexes. In addition, in the Corsican <em>C.c.ogliastrae</em>, but not in the mainland <em>C.c.caeruleus</em>, the decrease is associated with an increase in temperature at moult. Quantitative genetic analyses do not reveal any microevolutionary change in the colour traits along the study period, strongly suggesting that the observed change over time was caused by a plastic response to the environmental conditions. Overall, this study suggests that ornamental colourations could become less conspicuous due to warming, revealing climate change effects on sexual and social ornaments and calling for further research on the proximate mechanisms behind these effects.</div>
Data and code for Rowan et al. "Long-term biotic homogenization in the East African Rift System over the last 6 Myr of hominin evolution"
<p>Data and code for Rowan et al. "Long-term biotic homogenization in the East African Rift System over the last 6 Myr of hominin evolution" published in <em>Nature Ecology and Evolution</em>.</p>
Long-term SW simulations of Jupiter's GRS
<p>Data and input files for the SW2 software regarding the simulations presented in "The origin of Jupiter’s Great Red Spot".</p>
Long-term electrocardiogram and wrist-based photoplethysmogram recordings with annotated atrial fibrillation episodes
<p><strong>Rationale</strong></p> <p>Atrial fibrillation (AF) has emerged as a worldwide cardiovascular epidemic affecting more than 33 million individuals worldwide and carrying a 5-fold increased risk of brain stroke and a 3-fold increased risk of heart failure (Hindricks et al. 2021). AF is a progressive disease, with primary paroxysmal episodes being self-terminating; therefore, the success of complication management highly depends on early arrhythmia detection, which often requires long-term AF monitoring (Keach et al. 2015). Unfortunately, existing devices for long-term AF monitoring are either expensive (implantable cardiac monitors) or inconvenient due to skin irritation (Holter monitors, electrocardiogram (ECG) patches). Thus, it is desirable to develop inexpensive technologies ensuring wearing comfort. Recently, biooptical photoplethysmography (PPG) signal has emerged as such technology with immense potential for convenient long-term AF monitoring (Pereira et al. 2020). However, due to the lack of guidelines for arrhythmia interpretation in PPG, simultaneous ECG recording is needed for verification of the episodes detected in PPG. The present dataset contains simultaneously acquired wrist-based PPG and reference ECG signals with annotated AF episodes, and thus, is particularly suitable for use in the development and testing of automatic PPG-based AF detectors.</p> <p><strong>Subjects and data acquisition protocol</strong></p> <p>The dataset contains long-term ECG and PPG signals from 45 patients with suspected AF monitored for 5 to 8 days (306 days in total). Detailed demographic (sex, age, height, weight) and clinical (diagnosed comorbidities, medications) characteristics of the patients are provided in the supplementary file <strong><em>subject_info.xlsx</em></strong>.</p> <p>The acquisition of the PPG and ECG signals was started at Vilnius University Hospital Santaros Klinikos (Vilnius, Lithuania) and continued for a week at the patient’s home. The PPG signal was acquired at a sampling frequency of 100 Hz using a green LED embedded in a wrist-worn device developed at the Biomedical Engineering Institute (Kaunas, Lithuania). The reference ECG signal was acquired at a sampling frequency of 500 Hz using the Bittium Faros™ 180 ECG device together with the Bittium OmegaSnap™ patch electrode (Oulu, Finland). Additionally, triaxial acceleration signals were acquired with both devices at sampling frequencies of 50 and 25 Hz using wrist-worn and reference ECG devices, respectively. The occurrence times of QRS-complexes in ECG signals were obtained using an open-source QRS detector (Moeyersons et al. 2020), and initial AF episodes were automatically detected using a low-complexity AF detector relying on rhythm irregularity information (Petrėnas et al. 2015). Then, the AF detector output was visually inspected and manually corrected by medical specialists experienced in arrhythmia diagnosis with the aim to find undetected and discard falsely detected episodes.</p> <p>The data acquisition protocol was in accordance with the ethical principles of the Declaration of Helsinki and was approved by Vilnius Region Biomedical Research Ethics Committee (No. 158200-18/7-1052-557). All patients gave written informed consent to participate.</p> <p><strong>Technical details</strong></p> <p>The acquired signals are provided in MAT-files named as follows:</p> <p><strong>XX_YYY</strong>,</p> <p>where <strong>XX</strong> is the patient ID, <strong>YYY</strong> is ECG for the signals from the Bittium Faros™ 180 ECG device and PPG for the signals from the wrist-worn device. For each patient, there are a single continuous ECG recording and multiple PPG recordings because the acquisition of the PPG could be interrupted for a short time due to technical reasons or for a longer time to allow battery charging of the wrist-worn device.</p> <p>In addition to PPG, ECG, and acceleration signals, each file contains a signal header, the day when the recording started with respect to the first monitoring day of the patient, and the time of day when the recording started. The ECG files also contain QRS time indices and calculated RR intervals together with AF annotations on a beat-to-beat basis. PPG and acceleration signals from a wrist-worn device were synchronized to correspond time of ECG acquisition device. </p> <p>In the <strong><em>subject_info.xlsx</em></strong> file, physical inactivity is defined as < 5000 steps/day or < 150 min/week of moderate-intensity exercise or < 75 min/week of high-intensity exercise, excessive physical activity is defined as > 750 min/week of moderate-intensity exercise, and hypertension is classified into stages based on systolic/diastolic blood pressure: stage I corresponding to 140/90–159/99 mmHg, stage II to 160/100–179/109 mmHg, and stage III to ≥ 180/100 mmHg.</p> <p><strong>Limitations</strong></p> <p>When using the resource, researchers should be aware that the PPG and ECG acquisition devices have been synchronized, however, the exact alignment of the signals cannot be reached due to physiological features, e.g., the heart rate obtained from the PPG and ECG signals. Users should also be aware that the sampling frequencies of the devices can vary slightly.</p>
Experimental data from long-term elevated pCO2 exposure in Pacific herring. Datasets include measurements of enviromental treatment conditions, growth and developmental traits, and mortality data from a disease challenge.
<p>This study evaluated the effects of ocean acidification on the health, survival, fitness, and disease susceptibility of early life stage Pacific herring. Wild larvae were reared from hatching under three pCO2 treatments [low (~650 μatm), intermediate (~1,500 μatm), and high (~3,000 μatm)] to determine the effects of elevated pCO2 on larval growth, yolk consumption, and foraging capabilities and to evaluate how chronic exposure to elevated pCO2 affects long-term growth and maximum swimming speed. After prolonged exposure (98 d), we tested how elevated pCO2 experienced during development altered the susceptibility of juvenile Pacific herring to VHS following water-borne exposure to VHSV. This directory includes datasets for: 1) daily pH and temperature measurements from replicate rearing tanks; 2) carbon chemistry measurements from discrete seawater samples; 3) morphometric and feeding data for larval herring (1 - 16 days post hatch); 4) standard length measurements from larval and juvenile samples (1 - 98 days post hatch); 5) All dry mass measurements from larval and juvenile samples (1 - 98 days post hatch); 6) survival statistics for whole experiment ( 1- 98 days post hatch); 7) maximum swim speed measurements on juvenile herring; 8) disease challenge mortality and viral titer data; 8) a README file containing information on the dataset. </p>
Data and code for publication "The long-term sea-level commitment from Antarctica"
<p>Data and scripts for assessing the long-term sea-level commitment from Antarctica </p> <p>The data and scripts are relevant for the analysis and for reproducing figures and tables presented in the following publication: </p> <p>Klose A K, Coulon V, Pattyn F, Winkelmann R, 2024, The long-term sea-level commitment from Antarctica, The Cryosphere. </p>
A statistical analysis of tweeks in the mid-low latitudes based on long-term VLF measurements
<p>Figures, data, and code used in my paper describing "A statistical analysis of tweeks in the mid-low latitudes based on long-term VLF measurements"</p>
Soil organic carbon formation efficiency from straw/stover and manure input and its drivers: Estimates from long-term data in global croplands
<p><span>The supporting data for raw data, geographic location of the experimental sites, grid-level maps showing the predicted NCE (%) of global cropland</span></p>
db long-term runoff plots at Tetto Frati 1995-2012
<p>production and nutrient uptake in large runoff plots, 1995-2012</p>
Soil organic carbon formation efficiency from straw/stover and manure input and its drivers: Estimates from long-term data in global croplands
<p>In-situ observations collected from publications, grid-level maps showing the predicted NCE (%) of global cropland and data-driven model codes</p>
Soil organic carbon formation efficiency from straw/stover and manure input and its drivers: Estimates from long-term data in global croplands
<p>In-situ observations collected from publications, grid-level maps showing the predicted NCE (%) of global cropland and data-driven model codes</p>
Soil organic carbon formation efficiency from straw/stover and manure input and its drivers: Estimates from long-term data in global croplands
<p>Field observation data collected from publications, the references from the main text and data sources , grid-level maps showing prediction of global cultivated land NCE(%) and data-driven model codes </p>
FIGURE 7 in Long-Term Avifaunal Survey In An Urban Ecosystem From Southeastern Brazil, With Comments On Range Extensions, New And Disappearing Species
FIGURE 7: Individual of Chalk-browed Mockingbird (Mimus saturninus) with blackish-brown throat and upper breast. Photo: D. Hoffmann.
FIGURE 4 in Long-Term Avifaunal Survey In An Urban Ecosystem From Southeastern Brazil, With Comments On Range Extensions, New And Disappearing Species
FIGURE 4: Distribution of bird species of different trophic guilds using different habitat on the campus of the Pontifícia Universidade Católica de Minas Gerais, Belo Horizonte, Minas Gerais, southeastern Brazil. Guilds: CAR = carnivorous; DET = detritivorous; FRU = frugivorous; GRA = granivorous; INS = insectivorous; NEC = nectarivorous; ONI = omnivorous; PIS = piscivorous.
Resourcing long-term care: A social investment approach
<p>This video explores decision-making for investments in long-term care.</p>
Underlying data for "Metabolism of remimazolam in primary human hepatocytes during continuous long-term infusion in a 3D bioreactor system"
<p>The dataset supports the manuscript "Metabolism of remimazolam in primary human hepatocytes during continuous long-term infusion in a 3D bioreactor system" published in the journal "Drug design, development and therapy" in 2019</p>
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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.