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56 results for “respiration measurements”
PsPM-LSOA: Pupil size response, SCR, EMG, ECG and respiration measurement from a classical (Pavlovian) discriminant delay fear conditioning task
<p>This dataset includes eye tracker (including pupillometry), skin conductance, EMG, ECG and respiratory measurements. Also included are task information, keypress responses, keypress response times and key correctness for each of 22 healthy unmedicated participants (13 females and 9 males aged 25.3 +/- 4.3 years) participating in a classical (Pavlovian) discriminant delay fear conditioning task. CS consists of two sine tones with constant frequency (135 Hz or 300 Hz). Assignment of CS frequency to CS-/CS+ is randomised across participants. US is a train of electric square pulses delivered with a constant current stimulator (Digitimer DS7A, Digitimer, Welwyn Garden City, UK) on participants' dominant forearm through a pin-cathode/ring-anode configuration. SOA betwen the CS and US is 7.5 s. The ITI is randomly determined on each trial to be 10.0 +/- 1.4 s.</p>
Data for: Non-invasive measurements of respiration and heart rate across wildlife species using Eulerian Video Magnification of infrared thermal imagery
<p><strong>Background</strong>: An animal's metabolic rate, or energetic expenditure, both impacts and is impacted by interactions with its environment. However, techniques for obtaining measurements of metabolic rate are invasive, logistically difficult, and costly. Red-green-blue (RGB) imaging tools have been used in humans and select domestic mammals to accurately measure heart and respiration rate, as proxies of metabolic rate. The purpose of this study was to investigate if infrared thermography (IRT) coupled with Eulerian video magnification (EVM) would extend the applicability of imaging tools towards measuring vital rates in exotic wildlife species with different physical attributes.</p> <p><strong>Results</strong>: We collected IRT and RGB video of 52 total species (39 mammalian, 7 avian, 6 reptilian) from 36 taxonomic families at zoological institutions and used EVM to amplify subtle changes in temperature associated with blood flow for respiration and heart rate measurements. IRT-derived respiration and heart rates were compared to 'true' measurements determined simultaneously by expansion of the ribcage/nostrils and stethoscope readings, respectively. Sufficient temporal signals were extracted for measures of respiration rate in 36 species (85% success in mammals; 50% success in birds; 100% success in reptiles) and heart rate in 24 species (67% success in mammals; 33% success in birds; 0% success in reptiles) using IRT-EVM. Infrared-derived measurements were obtained with high accuracy (respiration rate, mean absolute error: 1.9 breaths per minute, average percent error: 4.4%; heart rate, mean absolute error: 2.6 beats per minute, average percent error: 1.3%). Thick integument and animal movement most significantly hindered successful validation.</p> <p><strong>Conclusion</strong>: The combination of IRT with EVM analysis provides a non-invasive method to assess individual animal health in zoos, with great potential to monitor wildlife metabolic indices in situ.</p>
Data for: Non-invasive measurements of respiration and heart rate across wildlife species using Eulerian Video Magnification of infrared thermal imagery
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Simultaneous measurements of soil and ecosystem respiration: advantages, lessons, and questions
<p>Simultaneous measurements of soil and ecosystem respiration (LI-8100 automated chambers, and eddy-flux tower - at night), in a Eucalyptus woodland near Sydney, Australia. <br> Also included in the dataset: soil temperature, soil moisture, air temperature, precipitation</p>
Respiration rate measurements for antipatharians (black corals; Stichopathes gracilis and Antipathella wollastoni) from the Canary Islands Archipelago.
<p>Row data for respiration rate measurements used in the manuscript entitled "Higher daily temperature range at depth is linked with higher thermotolerance in Antipatharians from the Canary Islands". </p> <p>Ramp experiments were performed with coral fragments from the three populations (<em>Antipathella wollastoni </em>from 25 m and 40 m and <em>Stichopathes gracilis</em> from 80 m). Each ramp was divided in two legs, respectively called 'hot ramp' and 'cold ramp', both starting at the acclimation temperature. Here, we define 'ramp experiment', as the progressive increase/decrease (hot/cold ramp) by gradual steps of temperature. The minimum temperature tested corresponded to the lower seasonal temperature experienced by the organism in its environment. The maximum temperature tested was the highest seasonal temperature experienced by the organism in its environment +3°C. Each time, one fragment of a colony was used for the hot ramp and the second fragment, from the same colony, was used for the cold ramp. This allowed every fragment to be used only in a single ramp (and not reused), as well as to have paired replicates (fragments from the same colony) between hot and cold ramps.</p> <p>Each ramp proceeded identically for specimens from the three populations. Seven fragments from different colonies were moved from their acclimation tank to one of the eight respirometry chambers held in the experimental tank. They were first left to acclimate for 1 hour in darkness and then the chambers were closed, and oxygen consumption was measured for 40 min in darkness, starting at the acclimation temperature. After this period of stable temperature, the chambers were opened in the experimental tank (allowing water exchange between the water in the chambers and in the experimental tank) and temperature was increased/decreased for 30 min to the next step of temperature. Once reached, the fragments were left 30 more min in their open chambers to acclimate to the new temperature, before starting a new 40 min measurement period (with closed chambers). Oxygen saturation in the chambers was always above 80%. This procedure was repeated for each step of temperature. At the end of the last respiration rate measurement, chambers were opened, temperature was decreased back to the acclimation temperature and new measurements of respiration rate were taken after 2.5 hours and 12 hours, to evaluate whether the fragments were able to recover from the heat stress (recovery capacity). The recovery capacity was only assessed at the end of the hot ramp (not at the end of the cold ramp). During all ramps, one chamber was left free from any fragment (blank/control chamber) to account for background respiration (i.e., part of the respiration attributed to seawater microbes and/or instrument drift).</p> <p>Respiration rates were calculated by measuring the oxygen consumption (expressed in oxygen saturation) of the fragments through time, for the eight respirometry chambers simultaneously. One measure was recorded every 5 s on each chamber using fibre-optic oxygen sensors connected to two 4-channel Fibre Optic Oxygen Transmitter (OXY-4 SMA G2 and OXY-4 SMA G3, Pre-Sens Precision Sensing GmbH, Germany). The volume and shape of the chambers changed based on the morphology of the species: fragments of <em>A. wollastoni </em>(bushy) were placed in 400 mL cylindrical plastic chambers and fragments of <em>S. gracilis</em> (unbranched, long and thin corallum) in 50 mL Falcon tubes. A new oxygen sensor spot (PreSens SP-PSt3-NAU-D5-YOP-SA) was glued in every chamber and calibrated according to the supplier’s manual. A magnetic stir bar, separated from the fragment by a mesh, allowed to maintain constant homogenization of the dissolved gas in the chambers.</p>
Reassure Device: Measurement Accuracy of Continuous Respiration Rate
ClinicalTrials.gov study NCT02740478. IPD Sharing: NO. Countries: 0. Publications: 1.
Data from: Modeled and measured ecosystem respiration in maize–soybean systems over 10 years
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Gross primary production and ecosystem respiration measurments based on the Terrestrial Ecosystem Model (TEM)
Gross primary production and ecosystem respiration measurments based on the Terrestrial Ecosystem Model (TEM).
Elemental composition, respiration, and excretion measurements of pteropods collected from the PAL LTER research cruises along the Western Antarctic Peninsula 2017-2019.
Pteropods (pelagic snails) are abundant zooplankton in the Southern Ocean where they are important grazers of phytoplankton, prey for higher trophic levels, and sensitive to environmental change. In this study, the effects of warming seawater temperatures and shifting food availability on Limacina helicina antarctica metabolism (respiration and excretion) were determined by conducting shipboard experiments that exposed pteropods to a range of temperatures and phytoplankton (food) concentrations. Pteropods and all other macrozooplankton were collected with a 2 m square frame Metro net (700 µm mesh), towed obliquely to depths up to 120 m (Ross et al., 2008; Steinberg et al., 2015), or with shallower (0-50 m), vertical tows if pteropods were very abundant. Pteropods were exposed to varying temperature and food conditions for 12 hours and respiration and excretion were measured. Incubations were also conducted with non-shelled pteropod species and shelled pteropod, Clio pyramidata, measuring pteropod respiration under in situ conditions. Finally, a CO2 perturbation experiment measuring L. h. antarctica metabolism (respiration and excretion) under pre-industrial and elevated dissolved CO2 conditions at ambient temperature in filtered seawater (no food), during the 2018 PAL LTER research cruise. Results reveal the metabolic response of pteropods to ocean variability, increase our understanding of the role of zooplankton in biogeochemical cycles, and help predict future responses to climate change.
Soil trenching – are microbial communities alike in experimental peatland plots measuring total and heterotrophic respiration?
<p> </p> <table> <tbody> <tr> <td>Data obtained within a project financed by LIFE Programme of the European Union ‘Demonstration of climate change mitigation potential of nutrients rich organic soils in Baltic States and Finland (LIFE OrgBalt, LIFE18 CCM/LV/001158)</td> </tr> <tr></tr> </tbody> </table>
Tracing low-CO2 fluxes in soil incubation and 13C labeling experiments: a simplified gas sampling system for respiration and photosynthesis measurements
<p>Data set containing data from feature tests (1-3) as well as photosynthesis and respiration measurements.</p>
Reliability of heart rate and respiration rate measurements with a wireless accelerometer in postbariatric recovery
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The Effect of Spontaneous Respiration on Pulse-oximetry Measurements
ClinicalTrials.gov study NCT04139356. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Internal Jugular Ultrasound Measures During Respiration in Children
ClinicalTrials.gov study NCT02004938. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Measurements of Myocardial Relaxation Time by MRI During Respiration
ClinicalTrials.gov study NCT03234205. IPD Sharing: NO. Countries: 1. Publications: 0.
Feasibility Study of a Non-invasive Device to Quickly, Easily and Accurately Measure Respiration in a Clinical Setting
ClinicalTrials.gov study NCT04182711. IPD Sharing: NO. Countries: 1. Publications: 0.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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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.