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795 results for “fluctuations”
Data for: Marine mussel respiration under fluctuating temperatures
<p>The impact of rising temperatures on biological systems is well-documented, particularly on coastal shores characterized by fluctuating temperatures. To study the effects of fluctuating temperatures on physiological performance, experiments often employ treatments that alternate between "<em>blocks</em>" of time exposed to minimum versus maximum temperatures. To test the efficacy of these approaches, we collected water temperatures from a mussel bed to drive 12-h<em> field </em>treatments and compared them to <em>block</em> treatments across different seasons. Our results showed that respiration rates for mussels under spring and fall temperatures were higher in the <em>block</em> compared to the <em>field</em> treatments. In contrast, mussels tested under summer temperatures showed higher rates under<em> field</em> versus <em>block</em> treatments. When simulating winter temperatures, rates in field and block treatments were similar. The thermal performance curves generated from the<em> field</em> and <em>block </em>data produced significantly different estimates of thermal optima, indicating a mismatch between lab-based temperature treatments and natural thermal regimes. The potential effects on physiological performance underscore the importance of using high-resolution temperature data and the need to ensure that the seasonal conditions being simulated in lab experiments match those being studied in the field. </p>
Data and scripts from: Experimental evidence of size-selective harvest and environmental stochasticity effects on population demography, fluctuations, and nonlinearity
<p class="MsoNormal">Theory and analyses of fisheries datasets indicate that harvesting can alter population structure and destabilize nonlinear processes, which increases population fluctuations. We conducted a factorial experiment on the population dynamics of <em>Daphnia magna</em> in relation to size-selective harvesting and stochasticity of food supply. Harvesting and stochasticity treatments both increased population fluctuations. Timeseries analysis indicated that fluctuations in control populations were nonlinear, and nonlinearity increased substantially in response to harvesting. Both harvesting and stochasticity induced population juvenescence, but harvesting did so via depletion of adults whereas stochasticity increased the abundance of juveniles. A fitted fisheries model indicated that harvesting shifted populations towards higher reproductive rates and larger-magnitude damped oscillations that amplify demographic noise. These findings provide experimental evidence that harvesting increases nonlinearity of population fluctuations and that both harvesting and stochasticity increase population variability and juvenescence.</p>
Fluctuation spectra
<p>Archive of fluctuation spectra includes following sets of the data: 50 Hz of Septentrio (April 2022, September 2022), 100 Hz of Septentrio (September 2022) and 50 Hz of Javad (April 2021).</p>
Supplementary Materials for "Temperature field, flow field and temporal fluctuations thereof 2 in ammonothermal growth of bulk GaN – transition from dis-3 solution stage to growth stage conditions"
<p>Video S1: dissolution stage (upper part of nutrient and above), Video S2: 630 dissolution stage (baffle region), Video S3: dissolution stage (top seed), Video S4: dissolution stage 631 (middle seed), Video S5: dissolution stage (bottom seed), Video S6: growth stage (upper part of 632 nutrient and above), Video S7: growth stage (baffle region), Video S8: growth stage (top seed), Video 633 S9: growth stage (middle seed), Video S10: growth stage (bottom seed).</p>
A. Fontana and L. Bellon, Dataset for Phys. Rev. E 107, 034118 (2023) : Linking fluctuation and dissipation in spatially extended out-of-equilibrium systems
<p>In this repository, you can find the data used for the salient plots in the article (10.1103/PhysRevE.107.034118), a script you can use to plot such data and a folder with some functions used in the script. All files are in MATLAB format. </p>
Figure 6 in Microhabitat use by Mediterranean ribbed newts: newts in highly fluctuating conditions?
Figure 6. Distance-based redundancy analysis (db-RDA) evaluating the relative contributions of the variations in habitat structure to the differences among the three species of the genus Pleurodeles.
Figure 4 in Microhabitat use by Mediterranean ribbed newts: newts in highly fluctuating conditions?
Figure 4. Microclimatic overlap between Pleurodeles species, estimated with the posterior distribution of the probabilistic niche overlap metric (%) for a niche region of α = 0.95. The posterior mean and 95% credible intervals are shown as sky blue lines. Columns indicate the probability that species X occurs in the niche of species Y (in rows). PNE, Pleurodeles nebulosus; PPO, P. poireti; PWA, P. waltl.
Figure 3 in Microhabitat use by Mediterranean ribbed newts: newts in highly fluctuating conditions?
Figure 3. Plot of relative humidity (%) at the sites of Pleurodeles species occurrence, with a trend line and 95% confidence interval (in grey). Left, mean value; right, range.
Figure 2 in Microhabitat use by Mediterranean ribbed newts: newts in highly fluctuating conditions?
Figure 2. Plot of temperatures (°C) at the sites of Pleurodeles species occurrence, with a trend line and 95% confidence interval (in grey). Left, mean value; right, range.
Figure 1 in Microhabitat use by Mediterranean ribbed newts: newts in highly fluctuating conditions?
Figure 1. Map of the study region showing the localities (A) from which probes were recovered and (B) in which the habitats were characterised. Red diamonds, Pleurodeles nebulosus (2); green circles, P. poireti (3); blue squares, P. waltl (1).
Data related to "fluctuations of current velocity and suspended sediment concentration due to coastal seiches"
<p>The present dataset was derived from two acoustic Doppler current profilers moored in the inner (M1: 35.1881°N, 128.5861°E) and outer (M2: 35.1657°N, 128.5947°E) ) parts of the main channel of Masan Bay to reveal how suspended sediments vary depending on coastal seiches.</p> <p>Up-looking broadband ADCPs (M1: 1200 kHz RDI Workhorse Sentinel; M2: 1000 kHz RDI Sentinel V20) installed in a trawl-resistant bottom mount were configured to measure the profiles of the three-dimensional current velocities, water level, temperature, and echo intensity every ten minutes from September 22 to October 13, 2017.</p> <p>The post-processing dataset includes current velocity (m s<sup>-1</sup>), suspended sediment concentration (SSC, mg l<sup>-1</sup>), sediment flux (kg m<sup>-1</sup> s<sup>-1</sup>), 1-hr filtered current velocity and SSC, and excursion lengths (m). </p>
Effects of periodic fluctuation of water level on solute transport in seasonal lakes in Poyang floodplain system
<p>The purpose of this study is to investigate the solute transport in seasonal lakes within floodplain systems by means of laboratory experiments and numerical simulations.</p>
IVIg Treatment-Related Fluctuations in CIDP Patients Using Daily Grip Strength Measurements
ClinicalTrials.gov study NCT02414490. IPD Sharing: Not stated. Countries: 1. Publications: 1.
ExAblate Pallidotomy for Medically-Refractory Dyskinesia Symptoms or Motor Fluctuations of Advanced Parkinson's Disease
ClinicalTrials.gov study NCT03319485. IPD Sharing: Not stated. Countries: 8. Publications: 1.
Safinamide in Idiopathic Parkinson's Disease (IPD) With Motor Fluctuations, as add-on to Levodopa
ClinicalTrials.gov study NCT00627640. IPD Sharing: Not stated. Countries: 21. Publications: 2.
Neuro-computational Study of Thymic Fluctuations in Mood Disorders
ClinicalTrials.gov study NCT07033923. IPD Sharing: YES. Countries: 1. Publications: 7.
Central Corneal Thickness and 24-hour Fluctuation of Intraocular Pressure
ClinicalTrials.gov study NCT00941525. IPD Sharing: Not stated. Countries: 1. Publications: 14.
Amputee Residual Limb Volume Fluctuation
ClinicalTrials.gov study NCT01161238. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Intraocular Pressure Fluctuation in Patients With Glaucoma and in Healthy Patients During Standard Yoga Positions
ClinicalTrials.gov study NCT01915680. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Comparison of Glycaemic Fluctuation and Oxidative Stress Between Two Short-term Therapies for Type 2 Diabetes
ClinicalTrials.gov study NCT02526810. IPD Sharing: Not stated. Countries: 1. Publications: 8.
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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.
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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.