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1,051 results for “ring”
Silver ring
Silver ring, 20 mm in diameter. Scanned with our brand new RangeVision 3D scanner Spectrum. Source: Objaverse 1.0 / Sketchfab
Surface of Revolution (Ring of the Nodoid)
* This model, the third in the group, shows part of a surface called a nodoid. The white plaster model is round with a hole in the middle. It was among the first plaster models Brill published, and where cats after models in the technical institute in Munich where Braunmühl studied, carried out under the direction of Alexander Brill. A paper tag reads: Rotationsfl. const. mittl. Krümmg. [/] Verl. v. L. Brill. 2. Ser. Nr. VIIIc. * *(метка 3)* Source: Objaverse 1.0 / Sketchfab
Dathi's Mound - Ring Barrow RO022-057046-
At the S edge of the Rathcroghan plateau. Reputed to be the burial place of Daithaí, nephew of Niall of the Nine Hostages and the last of the early mythological High Kings of Ireland (Gormley 1989, 9, 10). Circular grass-covered mound (diam. of base 18m E-W; 16.4m N-S; H 0.2m at N to 1.3m at W) separated by a fosse (at S: Wth of top 9m) from an outer bank (at S: Wth 7m; int. H 1.3m; ext. H 0.9m) E-W, which is incorporated into a field bank (Wth 2m; H 1m) elsewhere (max. ext. diam. 34m E-W; 33m N-S). There are breaks in the bank at W (Wth 5.2m) and ESE (Wth 4.2m). Standing stone (RO022-057047-) is on the summit. It was investigated in 1913, and limited excavation in 1981 confirmed that it is a natural gravel ridge which was moulded into its present form. The outer bank is artificial, and charcoal from its lower levels provided C14 dates of 1940 +- 70 BP (GrN 11429) and 2120+-25 BP (GrN 11430). Source: Objaverse 1.0 / Sketchfab
Africhibi - Aimasai With Detached Ring -STL
Africhibi is a family of beings that let you express yourself while exploring aspects of African Culture. This is Aimasai, inspired by Kenyan Soapstone sculptures and various forms of African Jewelery. Developed by Nairobi Design Week Source: Objaverse 1.0 / Sketchfab
Ballochraggan 14 - Cup & Ring Marked Rock
Recorded and modelled by Nick Parish of the Callander Group for Scotland's Rock Art Project (ScRAP). Located north of the Lake of Menteith at NN 56149 01749 Canmore Ref . 362821 ScRAP Ref. 3358 Source: Objaverse 1.0 / Sketchfab
Olympic Ring Benches
A pair of benches (2 of 4 in this location) that were made from the large Olympic Rings that hung in St Pancras Station during the London 2012 Olympics. Located in the small parklet at the north east corner of St Pancras Station, Camley Street, London. The benches are now heavily overgrown and unmaintained. 246 photos taken in May 2022 with a Sony a7R III and processed in Reality Capture. Source: Objaverse 1.0 / Sketchfab
Rings
Ring scanned by Thunk3D jewelry scanner Contact us for more info. Whatsapp/phone/wechat: +86 18518781107 Email:daicy@thunk3d.com Facebook:www.facebook.com/qinqin.li.77 Linkedin: https://www.linkedin.com/in/daicy-li-399b82119/ Titter: https://twitter.com/DaicyLi Source: Objaverse 1.0 / Sketchfab
Rector's ring
Władysław Wojciechowski 1900, Kraków Jagiellonian University Museum Collegium Maius Inventory number: 8747; 1996/IV https://muzea.malopolska.pl/en/objects-list/2787 Source: Objaverse 1.0 / Sketchfab
Corrupted Stonehenge Ring
Ring of stones imitating the Stonehenge The stones are based off the actual stones used to make the Stonehenge Corrupted with purple bile and energy If you use in a project, please email me and let me know, I'd loved to see what you've done! Source: Objaverse 1.0 / Sketchfab
Celtic Ornament ring
If you want to reduce the dimensions of the model, I will be happy to help you STL file has been fixed and ready for the print -STL File has been checked Software -No any bugs during printing The 3dm file is not suitable for printing and I just provided it for you to make changes. And I can help you if needed, but the rest of the files are ready to print If you need to make little changes to this model I'll do it for you no extra charge. If you have any questions I will be happy to answer them -If you are satisfied with the model, thank you for rating it[LIST] Source: Objaverse 1.0 / Sketchfab
All-atom molecular dynamics simulations of incomplete ATP synthase rotor rings with unusually high stoichiometry predicted by the AlphaFold2-based method
<p>The trajectories of all-atom MD simulations of <span>AlphaFold2 4, 11, 16 or 18-mer structures of the subunit <em>c</em> from<br></span><span><em>Candidatus Kryptonium thompsoni</em></span><span> (CKt_Nmer_lipid_mix_CHM36m_303K_500ns) and <br></span><span><em>Thalassoglobus polymorphus </em>(Tp_Nmer_lipid_mix_CHM36m_303K_500ns), and <br>AlphaFold2 11-mer structure of the subunit <em>c</em> from <em>Spinacia oleracea</em> (So_11mer-c20_POPC_CHM36m_303K_300ns) </span><span>in a lipid bilayer.</span></p> <p><span>Simulations have been performed using the CHARMM36m force field, running with the GROMACS 2022 package.</span></p>
Data from: Ring species dynamics in California mygalomorph spiders (Nemesiidae, Calisoga)
<p>Idealized ring species, with approximately continuous gene flow around a geographic barrier but singular reproductive isolation at a ring terminus, are rare in nature. A broken ring species model preserves the geographic setting and fundamental features of an idealized model but accommodates varying degrees of gene flow restriction over complex landscapes through evolutionary time. Here we examine broken ring species dynamics in <em>Calisoga </em>spiders, which like classic Ensatina salamanders, are distributed around the Central Valley of California. Using nuclear and mitogenomic data we test key predictions of common ancestry, ring-like biogeography, biogeographic timing, population connectivity and terminal overlap. We show that a ring complex of populations shares a single common ancestor, and from an ancestral area in the Sierra Nevada mountains, two distributional and phylogenomic arms encircle the Central Valley. Isolation by distance occurs along these distributional arms, although gene flow restriction is also evident. Where divergent lineages meet in the South Coast Ranges we find rare lineage sympatry, without evidence for nuclear gene flow, and with clear evidence for morphological and ecological divergence. We discuss general insights provided by broken ring species, and how such a model could be explored and extended in other systems and future studies.</p>
Tribological tests - block-on-ring - polymers vs. AISI 4130 - IL+CNTs, IL+Cu_CNTs
<p>Polymers: UHMWPE (Tivar 1000), POM-C (Ertacetal-C), PA (Nylon-6);</p> <p>Ionic liquids: 1-Ethyl-3-methylimidazolium dicyanamide; 1-Butyl-3-methylimidazolium bis (trifluoromethylsulfonyl)imide; Trihexyltetradecylphosphonium bis(2-ethylhexyl) phosphate;</p> <p>Test conditions: 1kN (load); 30 min (time); 200 rpm; 0.1 mL (lubricants vol.);</p>
Carpathian tree-ring network for European beech and Norway spruce
<p>Basic ecological theory suggests that a tradeoff between competitiveness and stress tolerance dictates species range limits at regional extents. However, empirical support for this key theory remains deficient because the necessary spatial and temporal coverage and scalability of field observations have rarely been achieved. We harnessed an extensive dendroecological network (>22,000 tree-ring samples from 816 forest inventory plots) to disentangle competition-limited from climate-limited growth in both overstory and understory trees. Growth synchrony among trees thereby served as an integral metric of climate sensitivity, an approach that we justify in supplementary analyses of growth responses to temperature, precipitation, and the standardized precipitation-evapotranspiration index. Sampling plots were arranged along elevational climate and vegetation gradients throughout the Carpathian Mountains, ranging from mixed-species lowland forests to coniferous forests at high elevations. With mixed-effect modelling, we also identified non-climatic factors (stand characteristics, species diversity, and disturbance history) that modulate spatial patterns in the growth rate and synchrony of European beech (<em>Fagus sylvatica</em> L.) and Norway spruce (<em>Picea abies</em> (L.) Karst.). Beech exhibited reduced growth and increased climate sensitivity towards higher elevations but performed better when species diversity was higher. The growth of spruce increased towards its lower range boundary, but understory cohorts grew poorly under interspecific competition. Overall, climate sensitivity was lower in more productive stands with benign climatic conditions and in recently disturbed sites with reduced stand density. These contrasting performances at mid-elevations where the two species overlap (900 – 1300 m a.s.l.) reflect their evolutionary history, which enables them to be competitive (beech) or cold-stress tolerant (spruce). This history will affect interactions between the two species under climate warming and shape macroecological patterns in the Carpathian ecoregion and likely other parts of Europe. Our findings point to a growing advantage of competitively stronger species in montane and subalpine vegetation zones.</p>
Short-term dietary changes are reflected in the cerebral content of adult Ring-billed Gulls
<p>Long-chain omega-3s (n3-LCPUFAs) are produced primarily in aquatic ecosystems and are essential for the structural integrity of vertebrates' brains. Carnivorous mammals must consume n3-LCPUFAs throughout their lifespan to maintain optimal cerebral functions; it is unknown whether other taxa are under similar nutritional pressures. This is concerning because many avian predators now rely on anthropogenic foods lacking n3-LCPUFAs. Here, we tested whether a recent or longer-term diet explains the encephalic fatty acid composition of a seabird, the Ring-billed Gull, that now thrives in cities. During the breeding season, rural gulls exploiting marine organisms had significantly higher encephalic levels of n3-LCPUFAs (mean±SD: 32±1%) than city-nesting gulls exploiting garbage (27±1%). Stable isotope analysis of blood and feathers grown during different seasons showed that urban and rural nesters consumed similar fall and winter diets, suggesting that the difference in cerebral n3-LCPUFA of breeding adults was due to concomitant and transient dietary differences. We also experimentally manipulated gulls' diets throughout incubation with a n3-LCPUFA supplement, a n3-LCPUFA-free caloric equivalent, or nothing, and found evidence that supplemental n3-LCPUFA increased urban nesters' cerebral levels of n3-LCPUFAs. These complementary analyses provide strong evidence that the brain of a seabird remains plastic during adulthood and responsive to short-term dietary changes.</p>
Optimized geometries for Global Aromatic Ring Currents in Neutral Porphyrin Nanobelts
<p>Optimized geometries for Global Aromaticity in Neutral Porphyrin Nanobelts</p>
Perceptual maps of Heliconiini butterflies: images, 3D spaces, 2D maps, and mimicry ring listings
<h3>Summary</h3> <p>This repository contains<strong> images</strong>, <strong>3D animated spaces</strong>, <strong>2D perceptual maps with GMM</strong>, and <strong>mimicry ring lists</strong> for heliconiine butterflies complementing the analyses presented in this research paper:<em><strong> </strong>"Doré et al., 2025 - Perceptual maps reveal rampant convergence in butterfly wing patterns across the Neotropics. in prep."</em>.</p> <h3>Abstract</h3> <p> In 1879, Fritz Müller formulated the first mathematical evolutionary model to explain mutualistic mimicry between coexisting defended prey. Yet, the degree to which local mimicry drives the structure of prey aposematic signals at continental scale remains unclear, because the perception of pattern similarity has never been assessed at large spatial scale. Here, we implement a Citizen Science survey to quantify and analyze the structure of perceived variation in the wing patterns of heliconiine butterflies (Nymphalidae: Heliconiini) throughout the entire Neotropics. Despite a continuum of perceived wing patterns at the continental scale, we show that the convergence of sympatric species into discrete mimicry rings is ubiquitous among communities. These results expand Müller’s historical predictions by supporting the rampant convergence of prey signals across an entire continent. </p> <h3>Contents</h3> <p>This repository contains three folders:</p> <ul> <li><em>"3D_maps"</em> contains the <strong>animated 3D perceptual spaces</strong> of heliconiine wing patterns for the Citizen Science dataset (N = 432) and the Local reference for the five local communities highlighted in the article.</li> <li><em>"Clustering"</em> contains the <strong>2D perceptual maps</strong> and associated <strong>lists of mimicry rings</strong> built for each of the five local communities, for different level of clustering from GMM (K from 5 to 10).</li> <li><em>"Images"</em> contains the 432 <strong>images of dorsal wing patterns</strong> of heliconiine butterflies used in the online survey (<a href="https://memometic.cleverapps.io/">https://memometic.cleverapps.io/</a>) designed for this study.</li> </ul> <h3>How to cite</h3> <p>Please cite this research article as:</p> <blockquote> <p>Doré, M., Pérochon, E., Aubier, T.G., Le Poul, Y., Joron, M., Elias, M., 2025. Perceptual maps reveal rampant convergence in butterfly wing patterns across the Neotropics. in prep. <a href="https://doi.org/TBA">https://doi.org/TBA</a></p> </blockquote> <h3>Associated ressources</h3> <p>The source codes for the analyses carried out in the study are available on <a href="https://github.com/MaelDore/Perceptual_map_Heliconiini">GitHub</a>.<br> <br>The occurrences data and distribution maps used in this study are publicly available from Zenodo: Occurrences data at <a href="https://doi.org/10.5281/zenodo.10906853">https://doi.org/10.5281/zenodo.10906853</a>; Distribution maps at <a href="https://doi.org/10.5281/zenodo.10903661">https://doi.org/10.5281/zenodo.10903661</a>.</p> <p>The online Citizen Science survey on the perception of mimicry in wing color patterns of heliconiine butterflies is temporary available at <a href="https://memometic.cleverapps.io/">https://memometic.cleverapps.io/</a>.<br>Source code for the online Citizen Science survey are accessible on <a href="https://github.com/MaelDore/Memometic_website">GitHub</a>.</p>
Four historical tree-ring chronologies and underlying data derived from dendrochronological research on Batavia shipwreck timbers
<p>This dataset comprises four tree-ring chronologies and underlying tree-ring data derived from the dendrochronological research on the shipwreck timbers of the <em>Batavia</em> shipwreck. The undated tree-ring series have also been included.</p> <p>For context information about this dendrochronological dataset, please refer to the publication:</p> <p>Daly A, Domínguez-Delmás M, van Duivenvoorde W (2021) <em>Batavia</em> shipwreck timbers reveal a key to Dutch success in 17th-century world trade. PLOS ONE 16(10): e0259391. <a href="https://doi.org/10.1371/journal.pone.0259391">https://doi.org/10.1371/journal.pone.0259391</a> </p> <p> </p>
E/Z Switchable Ring-closing Metathesis in 1,1′-Bis(but-3-enyl)ferrocenes: Synthesis and Characterization of Axially Chiral ansa[6]-Ferrocenes. Raw Diffraction Data.
<p>Diffraction data for article <em>E</em>/<em>Z</em> Switchable Ring-Closing Metathesis in 1,1′-Bis(but-3-enyl)ferrocenes: Synthesis and Characterization of Axially Chiral <em>ansa</em>[6]-Ferrocenes doi: <a href="https://doi.org/10.1021/acs.organomet.2c00163">10.1021/acs.organomet.2c00163</a>. The crystal structures have been deposited in CSD with CCDC numbers 2093772-2093775, 2094024-2094027 and 2119739.</p>
On the electromagnetic-electron rings originating from the interaction of high-power short-pulse laser and underdense plasma
<p>This repository contains data for the paper P. Valenta et al., Phys. Plasmas 28, 122104 (2021); <a href="https://doi.org/10.1063/5.0065167" target="_blank" rel="noopener">https://doi.org/10.1063/5.0065167</a>. The data were obtained by the EPOCH (v4.18-devel) particle-in-cell code (<a href="https://epochpic.github.io" target="_blank" rel="noopener">https://epochpic.github.io</a>). The data analysis can be found on GitHub (<a href="https://github.com/valenpe7/5.0065167" target="_blank" rel="noopener">https://github.com/valenpe7/5.0065167</a>).</p>
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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.