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2,135 results for “stabling”
microRNAs are abundant and stable in Platelet-rich fibrin and other autologous blood products of canines
<p>Regenerative properties and clinical adaptability of platelet-rich fibrin have been discussed in previous human research, but information about its composition in animals is lacking. It has been reported that microRNAs play an essential role in wound healing and inflammatory process. In this study, we reported the presence of various microRNAs in the platelet-rich fibrin and other autologous blood products of canines, including confirmed stability properties. We believe this research might be a step forward in understanding the regenerative mechanisms and adapting new therapy methods that can be used in humans and animals based on One Health principles. </p>
Data from: Mixed Signals from the Stable Isotope Composition of Precipitation and Plant Waxes in the Northern Tropical Andes
<p>These files are the supplementary information for Pérez‐Angel, L. C., Sepúlveda, J., Montes, C., Smith, J. J., Molnar, P., González-Arango, C., Snell, K., Dildar, N., Mixed Signals from the Stable Isotope Composition of Precipitation and Plant Waxes in the Northern Tropical Andes. Journal of Geophysical Research: Biogeosciences (In Revision). </p> <p> </p> <p>This work was funded by the National Science Foundation NSF | GEO | Division of Earth Sciences (EAR): 1929199</p>
Precise and stable edge orientation signaling by human first-order tactile neurons
<p><span>Fast-adapting type 1 (FA-1) and slow-adapting type 1 (SA-1) first-order neurons in the human tactile system have distal axons that branch in the skin and form many transduction sites, yielding receptive fields with many highly sensitive zones or 'subfields'. We previously demonstrated that this arrangement allows FA-1 and SA-1 neurons to signal the geometric features of touched objects, specifically the orientation of raised edges scanned with the fingertips. Here we show that such signaling operates for fine edge orientation differences (5–20°) and is stable across a broad range of scanning speeds (15–180 mm/s); that is, under conditions relevant for real-world hand use. We found that both FA-1 and SA-1 neurons weakly signal fine edge orientation differences via the intensity of their spiking responses and only when considering a single scanning speed. Both neuron types showed much stronger edge orientation signaling in the sequential structure of the evoked spike trains and FA-1 neurons performed better than SA-1 neurons. Represented in the spatial domain, the sequential structure was strikingly invariant across scanning speeds, especially those naturally used in tactile spatial discrimination tasks. This speed invariance suggests that neurons' responses are structured via sequential stimulation of their subfields and thus links this capacity to their terminal organization in the skin. Indeed, the spatial precision of elicited action potentials rationally matched spatial acuity of subfield arrangements, which corresponds to a spatial period similar to the dimensions of individual fingertip ridges.</span></p>
C and N stable isotope ratios in fishes from marine protected areas and areas open to fishing
<p><span>Here, we assess </span><span>whether fishery exploitation affects the trophic structure of carnivorous fishes</span><span>. We censused fishes and analysed the stable isotope ratios of C and N of species targeted by fishermen in areas open to fishing and marine protected areas in the Mediterranean Sea and the north-eastern Atlantic Ocean. Results demonstrated a major impact of fishing on the biomass and the size structure of nektobenthic carnivorous fishes. However, those changes did not modify the diversity of the trophic resources used by the assemblage, </span><span>the pattern of resource partitioning between species or the degree of trophic redundancy</span><span>. These results add to recent evidence suggesting that marine protected areas implemented in fished seascapes may fail to restore the original structure of the food webs that once existed in pre-fished ecosystems, because regional decimation and extinction of highly mobile predators prevents recovering the original diversity of predators at local scales, even at no-take areas. If so, more strict local fishing regulations are unlikely to restore the original diversity of high trophic level carnivores and restoration goals should be reframed </span><span>in terms of an objective that is less unrealistic than restoring the pre-fished condition while still recovering aspects of the historical trophic structure</span><span>.</span></p>
Data from: Whiskers provide time-series of toxic and essential trace elements, Se:Hg molar ratios, and stable isotope values of an apex Antarctic predator, the leopard seal
<p>In an era of rapid environmental change and increasing human presence, researchers need efficient tools for tracking contaminants to monitor the health of Antarctic flora and fauna. Here, we examined the utility of leopard seal whiskers as a biomonitoring tool that reconstructs time-series of significant ecological and physiological biomarkers. Leopard seals (<em>Hydrurga leptonyx</em>) are a sentinel species in the Western Antarctic Peninsula due to their apex predator status and top-down effects on several Antarctic species. However, there are few data on their contaminant loads. We analyzed leopard seal whiskers (n = 18 individuals, n = 981 segments) collected during 2018–2019 field seasons to acquire longitudinal profiles of non-essential (Hg, Pb, and Cd) and essential (Se, Cu, and Zn) trace elements, stable isotope (ẟ<sub>15</sub>N and ẟ<sub>13</sub>C) values and to assess Hg risk with Se:Hg molar ratios. Whiskers provided between 46 and 286 cumulative days of growth with a mean ~125 days per whisker (n = 18). Adult whiskers showed variability in non-essential trace elements over time that could partly be explained by changes in diet. Whisker Hg levels were insufficient (<20 ppm) to consider most seals being at "high" risk for Hg toxicity. Nevertheless, maximum Hg concentrations observed in this study were greater than that of leopard seal hair measured two decades ago. However, variation in the Se:Hg molar ratios over time suggest that Se may detoxify Hg burden in leopard seals. Overall, we provide evidence that the analysis of leopard seal whiskers allows for the reconstruction of time-series ecological and physiological data and can be valuable for opportunistically monitoring the health of the leopard seal population and their Antarctic ecosystem during climate change.</p>
QMC Raw Data for Stable Auxiliary Field Quantum Monte Carlo Algorithm in the Canonical Ensemble
<p><strong>Data Summary</strong></p> <p>Raw data of 'A Stable, Recursive Auxiliary Field Quantum Monte Carlo Algorithm in the Canonical Ensemble: Applications to Thermometry and the Hubbard Model'.</p> <p>Random seeds are generated using the default Julia RNG, with the seed number being 1234+the file ID.</p> <p>For more details, please check README.md on the GitHub repository.</p> <p> </p> <p><strong>Fidelity_Lx6Ly6_U(2.0|4.0).zip</strong></p> <ul> <li>Raw data for fidelity measurements that correspond to plot_fidelity.ipynb</li> <li>The random seeds for numerator measurements ('Fidelity(CE|GCE)_num.*') are 5678+the file ID</li> </ul> <p><strong>Purity_(CE|GCE)_Lx6Ly6_U(2.0|4.0).zip</strong></p> <ul> <li>Raw data for purity measurements that correspond to plot_purity.ipynb</li> <li>The random seeds for numerator measurements ('Purity(CE|GCE)_num.*') are 5678+the file ID</li> </ul> <p><strong>StructFactGCE_Lx6_Ly6_U2.0.zip</strong></p> <ul> <li>Raw data for the momentum distribution and structural factor measurements that correspond to plot_nk.ipynb and plot_Cq.ipynb</li> </ul>
Linearly and Nonlinearly Implicit Schemes for Energy-Stable Simulation of String Vibrations with Collisions: Refinement, Analysis, and Comparison
<p>Sound examples accompanying the manuscript submitted to the Journal of Sound and Vibration</p>
Data compilation of stable and radiactive carbon, Nd isotopes, and Pa and Th of the Last Glacial Maxmium and last deglaciation
<p>Proxy data compilations of <span class="math-tex">\(\delta^{13}C\)</span>, benthic-planktic <sup>14</sup>C ages, Nd isotopes, and Pa and Th of the Last Glacial Maximum (LGM) and last deglaciation as used in Pöppelmeier et al. (2023).</p> <p>Pöppelmeier, F., Jeltsch-Thömmes, A., Lippold, J., Joos, F., & Stocker, T. F. (2023). Multi-proxy agreement on Atlantic circulation dynamics since the last ice age.</p>
Intra-annual-tree-ring-stable-carbon-and-oxygen-isotope-of-Chinese-pine-in-Helan-Mountains
<p>The data are intra-annual series of tree-ring stable carbon (δ<sup>13</sup>Ccor) and oxygen (δ<sup>18</sup>O) isotopes from Chinese pine (<em>Pinus tabuliformis</em>) in Helan Mountains</p>
Data for: Speleothem stable isotopes from 670 - 240 ka ago at Cape Limeworks Cave 1, Robertson, South Africa
<p class="MsoNormal">We present stable oxygen and carbon isotope data (<span>δ<sup>18</sup>O and δ<sup>13</sup>C ) </span>and U-Th chronology data from five speleothems from Cape Limeworks Cave 1 near Robertson, Western Cape, South Africa (33.73S°, 19.77E°). The data set covers the time interval between 240 and 670 ka BP with hiatuses at 630-500 ka and 360-310 ka. Stable isotope ratios range between -6.5 and -3.7 ‰ for <span>δ<sup>18</sup>O and -11.0 and -8.5 ‰ for δ<sup>13</sup>C. Analyses of the dispersion of the δ<sup>18</sup>O and δ<sup>13</sup>C data sets suggest that the highly diverse western part of the Cape Floristic </span>Region experienced climatic stability across several glacial-interglacial cycles when compared to less diverse Mediterranean Climate Regions and the eastern parts of the Cape Floristic Region. This result provides support for the hypothesis that lower extinction rates associated with Pleistocene biome stability may explain the higher diversity in the CFR relative to other MCEs.</p>
Original Data for Publication: Exceptionally Stable Dimers and Trimers of Au25 Clusters Linked with a Bidentate Dithiol: Synthesis, Structure and Chirality Study.
<p>Original Data for Publication: Exceptionally Stable Dimers and Trimers of Au25 Clusters Linked with a Bidentate Dithiol: Synthesis, Structure and Chirality Study. Angewandte Chemie, 2023</p>
Calis-p 2.1 a software for protein-based stable isotope fingerprinting (Protein-SIF) and probing (Protein-SIP)
<p>Calis-p (The CALgary approach to ISotopes in proteomics) is a java application to estimate isotopic composition (e.g. delta13C or delta15N) of individual species in a microbial community from a proteomic dataset. Calis-p 2.1 handles both natural isotope abundances and data from labelling experiments such as stable isotope probing (SIP). It requires a mzIdent (or target spectrum match) and mzML files as the input and requires about 1 min per mzML file with 10 threads and needs <10 Gb of RAM. It has been tested with data from various nano liquid chromatography/Orbitrap platforms. For successful SIP, it is extremely sensitive, but requires the 13C fraction to remain below 10%.</p> <p>Detailed documentation can be found in the Wiki on https://sourceforge.net/p/calis-p/wiki/Home/ and the research article.</p>
FIG. 1 in A stable phylogeny for Dactylosporaceae
FIG. 1. — Continuation.
FIG. 3 in A stable phylogeny for Dactylosporaceae
FIG. 3. — Continuation.
FIG. 1 in A stable phylogeny for Dactylosporaceae
FIG. 1. — Continuation.
FIG. 2 in A stable phylogeny for Dactylosporaceae
FIG. 2. — Continuation.
MD simulations: Conditions for the stable adsorption of lipid monolayers to solid surfaces
<p>Essential files for Gromacs used in the study "Conditions for the stable adsorption of lipid monolayers to solid surfaces."</p> <p>Systems: DLPC bilayer, SAM+DLPC pulling, SAM with water droplets</p>
Data for: Echoes of ancient introgression punctuate stable genomic lineages in the evolution of figs
<p class="MsoNormal"><span>Studies investigating the evolution of flowering plants have long focused on isolating mechanisms such as pollinator specificity. Some recent studies have proposed a role for introgressive hybridization between species, recognizing that isolating processes such as pollinator specialization may not be complete barriers to hybridization. Occasional hybridization may therefore lead to distinct yet reproductively connected lineages.</span></p> <p class="MsoNormal"><span>We investigate the balance between introgression and reproductive isolation in a diverse clade using a densely sampled phylogenomic study of fig trees (<em>Ficus</em>, Moraceae). Co-diversification with specialized pollinating wasps (Agaonidae) is recognized as a major engine of fig diversity, leading to about 850 species. Nevertheless, some studies have focused on the importance of hybridization in <em>Ficus</em>, highlighting the consequences of pollinator sharing. Here we employ dense taxon sampling (520 species) throughout Moraceae and 1,858 loci to investigate phylogenetic relationships and the prevalence of introgression among species throughout the history of <em>Ficus</em>.</span></p> <p class="MsoNormal"><span>We present a well-resolved phylogenomic backbone for <em>Ficus</em>, providing a solid foundation for an updated classification. Our results paint a picture of phylogenetically stable evolution within lineages punctuated by occasional local introgression events likely mediated by local pollinator sharing, illustrated by clear cases of cytoplasmic introgression that have been nearly drowned out of the nuclear genome through subsequent lineage fidelity. The phylogenetic history of figs thus highlights that while hybridization is an important process in plant evolution, the mere ability of species to hybridize locally does not necessarily translate into ongoing introgression between distant lineages, particularly in the presence of obligate plant-pollinator relationships.</span></p>
Stable isotopes in precipitation (δ18O and δD) from Yadong and Pali, central Himalayas
<p><strong>Metadata</strong></p> <p>The isotopic compositions of daily precipitation were measured at two stations, Yadong and Pali, in the central Himalayas. The precision for δ<sup>18</sup>O and δD is ±0.1‰ and ±0.4‰, respectively. The meteorological data, including the collection of precipitation amounts and surface air temperature, was obtained by the Institute of Tibetan Plateau Research, Chinese Academy of Sciences, China.</p> <p><strong>Stations</strong></p> <table> <tbody> <tr> <td><strong>Station</strong></td> <td><strong>Latitude</strong></td> <td><strong>Longitude</strong></td> <td><strong>Altitude (m.a.s.l.)</strong></td> <td><strong>Sampling period</strong></td> <td><strong>Samples (n)</strong></td> </tr> <tr> <td>Yadong</td> <td>27° 29’ 40” N</td> <td>88° 55’ 01” E</td> <td>2945</td> <td>2014-03-13 - 2015-07-18</td> <td>125</td> </tr> <tr> <td>Pali</td> <td>27° 43’ 16” N</td> <td>89° 09’ 08” E</td> <td>4300</td> <td>2014-03-18 - 2015-07-23</td> <td>130</td> </tr> </tbody> </table> <p><strong>Variable definitions</strong></p> <table> <tbody> <tr> <td><strong>Description</strong></td> <td><strong>Unit</strong></td> <td><strong>Equipment</strong></td> <td><strong>Additional description</strong></td> </tr> <tr> <td>Date time</td> <td>−</td> <td>−</td> <td>−</td> </tr> <tr> <td>Air temperature</td> <td>Celsius (°C)</td> <td>−</td> <td>−</td> </tr> <tr> <td>Precipitation</td> <td>mm</td> <td>−</td> <td>−</td> </tr> <tr> <td>Water vapour isotopic ratio (δ<sup>18</sup>O)</td> <td>per mil</td> <td>Picarro-2130i Liquid Water Isotope Analyzer</td> <td>Normalized to V-SMOW</td> </tr> <tr> <td>Water vapour isotopic ratio (δD)</td> <td>per mil</td> <td>Picarro-2130i Liquid Water Isotope Analyzer</td> <td>Normalized to V-SMOW</td> </tr> <tr> <td>Deuterium excess (d-excess)</td> <td>per mil</td> <td> </td> <td>d-excess=δD-8*δ<sup>18</sup>O</td> </tr> </tbody> </table> <p><strong>Reference paper</strong></p> <p>Axelsson, J., Gao, J., Eckhardt, S., Cassiani, M., Chen, D. & Zhang, Q. (2023). A precipitation isotopic response in 2014-2015 to moisture transport changes in the central Himalayas. <em>Journal of Geophysical Research: Atmospheres</em></p>
An invasive appetite: Combining molecular and stable isotope analyses to reveal the diet of introduced house mice (Mus musculus) on a small, subtropical island
<p>House mice (<em>Mus musculus</em>) pose a conservation threat on islands, where they adversely affect native species' distributions, densities, and persistence. On Sand Island of Kuaihelani, mice recently began to depredate nesting adult mōlī (Laysan Albatross, <em>Phoebastria immutabilis</em>). Efforts are underway to eradicate mice from Sand Island, but knowledge of mouse diet is needed to predict ecosystem response and recovery following mouse removal. We used next-generation sequencing to identify what mice eat on Sand Island, followed by stable isotope analysis to estimate the proportions contributed by taxa to mouse diet. We collected paired fecal and hair samples from 318 mice between April 2018 to May 2019; mice were trapped approximately every eight weeks among four distinct habitat types to provide insight into temporal and spatial variation. Sand Island's mice mainly consume arthropods, with nearly equal (but substantially smaller) contributions of C<sub>3 </sub>plants, C<sub>4</sub> plants, and mōlī. Although seabird tissue is a small portion of mouse diet, mice consume many detrital-feeding arthropods in and around seabird carcasses, such as isopods, flesh flies, ants, and cockroaches. Additionally, most arthropods and plants eaten by mice are non-native. Mouse diet composition differs among habitat types but changes minimally throughout the year, indicating that mice are not necessarily limited by food source availability or accessibility. Eradication of house mice may benefit seabirds on Sand Island, but it is unclear how arthropod and plant communities may respond and change. Non-native and invasive arthropods and plants previously consumed (and possibly suppressed) by mice may be released post-eradication, which could prevent recovery of native taxa. Comprehensive knowledge of target species' diet is a critical component of eradication planning. Dietary information should be used both to identify and to monitor which taxa may respond most strongly to invasive species removal and to assess if proactive, pre-eradication management activities are warranted.</p>
ScienceDex guides
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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.