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181 results for “Stability studies”
Data from: A comparative study of ancient sedimentary DNA, pollen and macrofossils from permafrost sediments of northern Siberia reveals long-term vegetational stability
Although ancient DNA from sediments (sedaDNA) has been used to investigate past ecosystems, the approach has never been directly compared to the traditional methods of pollen and macrofossil analysis. We conducted a comparative survey of 18 ancient permafrost samples spanning the Late Pleistocene (46–12.5 thousand years ago), from the Taymyr Peninsula in northern Siberia. The results show that pollen, macrofossils and sedaDNA are complementary rather than overlapping, and in combination reveal more detailed information on plant palaeocommunities than can be achieved by each individual approach. SedaDNA and macrofossils share greater overlap in plant identifications than with pollen, suggesting that sedaDNA is local in origin. These two proxies also permit identification to lower taxonomic levels than pollen, enabling investigation of temporal changes in species composition and the determination of indicator species to describe environmental changes. Combining data from all three proxies, reveals an area continually dominated by a mosaic vegetation of tundra-steppe, pioneer and wet-indicator plants. Such vegetational stability is unexpected, given the severe climate changes taking place in the northern hemisphere during this time, with changes in average annual temperatures of > 22ºC. This may explain the abundance of ice-age mammals such as horse and bison in Taymyr Peninsula during the Pleistocene, and why it acted as a refugium for the last mainland woolly mammoth. Our finding reveals the benefits of combining sedaDNA, pollen and macrofossil for palaeovegetational reconstruction and add to the increasing evidence suggesting large areas of the northern hemisphere remained ecologically stable during the Late Pleistocene.
A singlet oxygen non-radical pathway for Rhodamine B dye degradation: Study on its stability, mechanism of degradation, and detoxification
<p><span>This study examined the degradation pathway of used face mask-derived carbon (UFMC) as a catalyst to activate peroxymonosulfate (PMS) without light sources and metal for Rhodamine B (RhB) dye degradation.</span><span> </span><span>The structural changes in the UFMC catalyst resulting from RhB degradation reduced its oxygen functionality and so reduced the rate of RhB dye degradation with each usage. </span><span>The structural changes of UFMC catalysts were confirmed by Fourier transform infrared, Raman, and X-ray photoelectron spectroscopy. The oxygen functionalities were involved in the generation of reactive oxygen species (ROS), in terms of singlet oxygen (<sup>1</sup>O<sub>2</sub>), which are involved in the RhB dye degradation mechanism. This was confirmed using paramagnetic resonance (EPR) spectroscopy and scavenging analyses. </span><span>Re-useability and stability investigations revealed the UFMC catalyst reached a minimum degradation percentage (38.8%) in the 5<sup>th</sup> cycle, confirming the complete utilization of UFMC functional groups for RhB dye degradation. </span><span>Finally, the ability to detoxify the RhB dye water was assessed using zebrafish (<em>Danio rerio) </em>with different RhB dye concentrations (2 to 6 mg/L), and 0 to 72 h of incubation at 26 °C and the<em> </em>yeast<em> </em>cells<em> (Saccharomyces cerevisiaetests)</em> harvested about 10<sup>7</sup> cells per mL for 24 h under shaking at 160 rpm at 30 °C. </span><span>Based on these results, the animal models were exposed to the RhB dye water, the significant changes in their growth were evident. However, treated with the RhB degraded water as a control, no developmental deformity was observed. This research employed the </span><span>UFM</span><span> derived carbon conveniently supported with PMS for dye removal application.</span></p>
Non-Invasive Rheo-MRI Study of Egg Yolk-Stabilized Emulsions: Yield Stress Decay and Protein Release
<p>Raw data for our publication "Non-Invasive Rheo-MRI Study of Egg Yolk-Stabilized Emulsions: Yield Stress Decay and Protein Release", including MRI (Paravision) and D-T2 maps (Topspin) datasets, rheological measurements (ASCII) and MATLAB scripts organised corresponding to each figure in the paper.</p>
Biomechanical Analysis of Limits of Stability Using Computerized Posturography: Correlations with Functional Mobility in Elderly Individuals with Hip Osteoarthritis – A Cross-Sectional Study
<p>The study titled "Biomechanical Analysis of Limits of Stability Using Computerized Posturography: Correlations with Functional Mobility in Elderly Individuals with Hip Osteoarthritis – A Cross-Sectional Study" delves into the intricate relationship between postural stability and functional mobility in elderly patients suffering from hip osteoarthritis (OA). Utilizing advanced computerized posturography, the research quantitatively assesses the limits of stability (LOS) in various directional planes, providing a comprehensive biomechanical profile of the participants. The findings reveal significant discrepancies in LOS between hip OA patients and age-matched asymptomatic controls, underscoring the profound impact of hip OA on balance and stability. Additionally, the study examines the correlation between LOS measurements and functional mobility, as assessed by the Timed Up and Go (TUG) test. The results indicate a strong association, suggesting that diminished postural stability in hip OA patients contributes to impaired functional mobility. This cross-sectional analysis highlights the importance of targeted interventions to enhance stability and mobility in this population, aiming to mitigate the risk of falls and improve overall quality of life.</p>
Data from: Green derivative synchronous spectrofluorimetry for kinetic stability study of florfenicol
<p>This dataset contains data representing synchronous fluorescence spectra obtained upon utilizing spectrofluorometry as a highly sensitive analysis tool for the simultaneous determination of Florfenicol with its different degradation products obtained after stress testing. Synchronous fluorimetry was used followed by applying either first or second derivatization according to the type of degradation aiming to obtain highly resoluted spectra. Different degradation pathways according to published literature were used to interpret degradation kinetic parameters, which were in accordance with previously reported articles. The dataset also includes different validation parameters applied.</p>
Current Progress of Perovskite Solar Cells Stability with Bibliometric Study
Open the record for dataset details and reuse information.
Data from: Stability and generalization in seed dispersal networks: a case study of frugivorous fish in Neotropical wetlands
When species within guilds perform similar ecological roles, functional redundancy can buffer ecosystems against species loss. Using data on the frequency of interactions between fish and fruit, we assessed whether co-occurring frugivores provide redundant seed dispersal services in three species-rich Neotropical wetlands. Our study revealed that frugivorous fishes have generalized diets; however, large-bodied fishes had greater seed dispersal breadth than small species, in some cases, providing seed dispersal services not achieved by smaller fish species. As overfishing disproportionately affects big fishes, the extirpation of these species could cause larger secondary extinctions of plant species than the loss of small specialist frugivores. To evaluate the consequences of frugivore specialization for network stability, we extracted data from 39 published seed dispersal networks of frugivorous birds, mammals and fish (our networks) across ecosystems. Our analysis of interaction frequencies revealed low frugivore specialization and lower nestedness than analyses based on binary data (presence–absence of interactions). In that case, ecosystems may be resilient to loss of any given frugivore. However, robustness to frugivore extinction declines with specialization, such that networks composed primarily of specialist frugivores are highly susceptible to the loss of generalists. In contrast with analyses of binary data, recently developed algorithms capable of modelling interaction strengths provide opportunities to enhance our understanding of complex ecological networks by accounting for heterogeneity of frugivore–fruit interactions.
FIG. 1. Study site for the 2016–2017 in Immediate skin-to-skin contact for low birth weight infants is safe in terms of cardiorespiratory stability in limited-resource settings.
FIG. 1. Study site for the 2016–2017 Terrapene bauri home range assessment located in southwestern Florida within the Ten Thousand Island National Wildlife Refuge (TTINWR) and Rookery Bay National Estuarine Research Reserve (RBNERR), Collier County, Florida, USA. TTINWR boundaries are delineated in green and RBNERR are delineated in blue.
Initial and final MD simulation coordinates for "Multidisciplinary studies with mutated HIV-1 capsid proteins reveal structural mechanisms of lattice stabilization"
<p>Initial and final coordinates for all MD simulations performed for the manuscript: "Multidisciplinary studies with mutated HIV-1 capsid proteins reveal structural mechanisms of lattice stabilization."</p> <p>File uploaded is a ZIP folder, containing sub-folders for each capsid construct (wild type and mutants). Additionally, a README file is given in the top-level folder, which contains a description of the file contents.</p>
A model study of ceria-Pt electrocatalysts: stability, redox properties and hydrogen intercalation
<p>experimental data for a manuscript</p>
Study of the Effect of Kinesio Taping and Proprioceptive Exercise on the Stability of Ankle in Amateur Soccer Players
ClinicalTrials.gov study NCT02863562. IPD Sharing: NO. Countries: 1. Publications: 9.
Efficacy Study of Switching Stabilized Schizophrenic Patients From Conventional to Atypical Antipsychotic Treatment
ClinicalTrials.gov study NCT00191555. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Early Stability of the Delta-TT Cup With Polyethylene Insert Versus a Ceramic Insert. A RSA Study.
ClinicalTrials.gov study NCT03093038. IPD Sharing: NO. Countries: 1. Publications: 1.
Study to Evaluate the Influence of Hydrochlorothiazide on Dermal Photosensitivity and DNA Stability - a Pilot Study (HCTox Study)
ClinicalTrials.gov study NCT04654312. IPD Sharing: NO. Countries: 1. Publications: 1.
Study on a Live-attenuated Respiratory Syncytial Virus Vaccine for Assessment of Safety, Transmissibility, and Genetic Stability of the Vaccine Virus Among Close Contacts in Infants and Toddlers 6 to
ClinicalTrials.gov study NCT05687279. IPD Sharing: YES. Countries: 2. Publications: 0.
Emulsion Lipid Digestion & Satiety Study - Effect of Physical State and Acid Stability
ClinicalTrials.gov study NCT03990246. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Synergistic Effect of Combination Therapy With Cilostazol and Probucol on Plaque Stabilization and Lesion Regression: Serial Intravascular Ultrasound and Virtual Histology Study(SECURE Study)
ClinicalTrials.gov study NCT01031667. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Comparative Study of Dual Yellow Laser Versus Stabilized Kilnman Preparation in the Treatment of Melasma
ClinicalTrials.gov study NCT01850186. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Specimen Stability Study
ClinicalTrials.gov study NCT01846884. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Pilot Study of a Brief, Recovery-focused Intervention for Crisis Stabilization Centers
ClinicalTrials.gov study NCT05558891. IPD Sharing: NO. Countries: 1. Publications: 1.
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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.
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.