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1,663 results for “shells”
FIGURE 1 in Bryozoa on disarticulated bivalve shells from Todos os Santos Bay, northeastern Brazil, with the description of two new species
FIGURE 1. MAP Of THE STUDY AREA IN BAHIA STATE, NORTHEASTERN BRAZIL. SHELLS WERE COLLECTED AT ITAPARICA BEACH (BLACK CIRCLE), TODOS OS SANTOS BAY.
Ajanta (Aurangabad District), Maharashtra. Shell inscription (śaṅkhalipi) on pillar
<p>Ajanta (Aurangabad District), Maharashtra. Shell inscription (<em>śaṅkhalipi</em>) on pillar.</p>
Dataset: Dopamine neurons projecting to medial shell of the nucleus accumbens drive heroin reinforcement.
<p>This dataset contains the data presented in the paper Dopamine neurons projecting to medial shell of the nucleus accumbens drive heroin reinforcement. (doi: 10.7554/eLife.39945 )</p>
Workflow Trace Archive shell trace
Chronos is a trace from Shell's Chronos IoT production system. It contains pipelines where sensor data is obtained, checked if values are within range (e.g. temperature, operational status, etc.), and the outcomes are written to persistent storage.
Dinosaur egg with bumpy shell, on right, with a collection of colorful bird eggs. The dark area on the left side of the dinosaur egg was likely blue in color. Photograph: Jasmina Wiemann. in The Evolution of Natural History Collections
Dinosaur egg with bumpy shell, on right, with a collection of colorful bird eggs. The dark area on the left side of the dinosaur egg was likely blue in color. Photograph: Jasmina Wiemann.
TEXT-FIGURE 4. Minutella cf. minuta (Cooper, 1981), "La Passe bateau" off the south-west coast of Mayotte Island. (1a–e) MNHN-IB-2017-173. a–d. Juvenile articulated specimen in dorsal, oblique lateral, posterior oblique views, and close-up of the posterior part of the shell (the protegulum is clearly limited by a step-like growth line and its surface is slightly granular; the rugideltidium is already well developed whereas the interarea remains reduced). e. Dorsal valve interior in plan view (early ju- venile stage in the ontogeny of the dorsal valve). (2a–c) MNHN-IB-2017-174: dorsal valve interior with well-preserved spicular canopies in plan and oblique posterior views, and close-up of the spicular canopy. (3) MNHN-IB-2017-175: articulated speci- men (young stage of growth). (4) MNHN-IB-2017-176: dorsal valve interior of a young specimen in plan view. in Recent thecideide brachiopods from a submarine cave in the Department of Mayotte (France), northern Mozambique Channel
TEXT-FIGURE 4. Minutella cf. minuta (Cooper, 1981), "La Passe bateau" off the south-west coast of Mayotte Island. (1a–e) MNHN-IB-2017-173. a–d. Juvenile articulated specimen in dorsal, oblique lateral, posterior oblique views, and close-up of the posterior part of the shell (the protegulum is clearly limited by a step-like growth line and its surface is slightly granular; the rugideltidium is already well developed whereas the interarea remains reduced). e. Dorsal valve interior in plan view (early ju- venile stage in the ontogeny of the dorsal valve). (2a–c) MNHN-IB-2017-174: dorsal valve interior with well-preserved spicular canopies in plan and oblique posterior views, and close-up of the spicular canopy. (3) MNHN-IB-2017-175: articulated speci- men (young stage of growth). (4) MNHN-IB-2017-176: dorsal valve interior of a young specimen in plan view.
Fig. 5 in Shell bone histology of solemydid turtles (stem Testudines): palaeoecological implications
Fig. 5 Thin-sections of Solemydidae aff. Naomichelys sp. Images in a-c and f-h in normal transmitted, d, e and i in crosspolarised, and right side in g in cross-polarized light using lambda compensator. a Peripheral (TMP 90.60.07). b Limb ossicle (FM PR 273). c Shell fragment (TMP 90.60.07). d Close-up of external cortex and ornamentation in peripheral (TMP 90.60.07). e Close-up of external cortex and ornamentation in shell fragment (TMP 90.60.07). f Close-up of cancellous bone of shell fragment (TMP 90.60.07). g Close-up of cancellous bone and internal cortex of shell fragment (TMP 90.60.07). h, i Close-up of cortical bone of limb ossicle (FM PR 273). Abbreviations: CB cancellous bone; ECO external cortex; ICO internal cortex; ISF interwoven structural fibres; LB lamellar bone; lsFB longitudinally sectioned fibre bundles; OP ornamentation pattern; PFB parallel-fibred bone; trFB transversally sectioned fibre bundles
Fig. 2 Sectioned solemydid specimens and resulting binary images used for compactness analysis with Bone Profiler. a in Shell bone histology of solemydid turtles (stem Testudines): palaeoecological implications
Fig. 2 Sectioned solemydid specimens and resulting binary images used for compactness analysis with Bone Profiler. a Solemys vermiculata, costal fragment (MCNA-15047). b Solemys vermiculata, shell fragment (MCNA-15046). c Solemys sp., costal fragment (UPUAM-14001)
Fig. 1 in Shell bone histology of solemydid turtles (stem Testudines): palaeoecological implications
Fig. 1 Selected solemydid taxa used in the present study. a Solemys vermiculata, costal fragment (MCNA-15047). b Solemys sp., costal fragment (UPUAM-14001). c, d Solemydidae aff. Naomichelys sp., peripheral (TMP 90.60.07). e Solemydidae aff. Helochelydra sp., peripheral (MNCN 59503). f Solemydidae aff. Helochelydra, plastral fragment (MNCN 59503). g Plastremys lata, costal fragment (NHMUK R 2251)
Fig. 4 in Systematics and phylogenetic species delimitation within Polinices s.l. (Caenogastropoda: Naticidae) based on molecular data and shell morphology
Fig. 4 NeighborNet network based on the concatenated data set (COI, 16S, 18S, 28S, H3). Bootstrap values are indicated
Рис. 1. Kellicottia bostoniensis (Rousselet, 1908), партеногенетическая ♀ из Можайского воΔохраниΛища. 1 — внешний виΔ; 2 — панцирь с яйцом; 3 — шипы переΔнего края панциря; 4 — заΔний шип Fig. 1. Kellicottia bostoniensis (Rousselet, 1908), parthenogenetic ♀ from the Mozhaisk Reservoir. 1 — external appearance; 2 — shell with an egg; 3 — spines of the anterior part of shell; 4 — rear spine. Scale: 1 — 250 μm; 2–3 — 150 μm; 4 — 50 μm in Kellicottia Bostoniensis (Rousselet, 1908) (Rotifera: Brachionidae) И Eurycercus Macracanthus Frey, 1973 (Crustacea: Cladocera)
Рис. 1. Kellicottia bostoniensis (Rousselet, 1908), партеногенетическая ♀ из Можайского воΔохраниΛища. 1 — внешний виΔ; 2 — панцирь с яйцом; 3 — шипы переΔнего края панциря; 4 — заΔний шип Fig. 1. Kellicottia bostoniensis (Rousselet, 1908), parthenogenetic ♀ from the Mozhaisk Reservoir. 1 — external appearance; 2 — shell with an egg; 3 — spines of the anterior part of shell; 4 — rear spine. Scale: 1 — 250 μm; 2–3 — 150 μm; 4 — 50 μm
Fig. 7 in Ecomorphology of a generalist freshwater gastropod: complex relations of shell morphology, habitat, and fecundity
Fig. 7 Variation in shell shape (a) and size (b) between water body types. notches extend to ± 1.58 times the IQR divided by the root squared The boxplots show the median (middle line), quartiles (boxes), 1.5 times number of observations, overlapping notches being strong evidence that the interquartile range (IQR) (whiskers), extreme values (dots). The the two medians do not differ (Chambers et al. 1983)
Fig. 5 in Ecomorphology of a generalist freshwater gastropod: complex relations of shell morphology, habitat, and fecundity
Fig. 5 Distribution of genetic clusters based on single nucleotide polymorphism markers. Lines indicate color ranges of clusters; lines representing clusters 5, 7, and 15 point at specific sites. Clusters 8, 9, and 10 were widespread across the northwest of the South island and therefore were not mapped
Fig. 1 in Ecomorphology of a generalist freshwater gastropod: complex relations of shell morphology, habitat, and fecundity
Fig. 1 Landmarks (LM) used in geometric morphometric analyses: apex (LM1); intersection of sutures with the shell outline (LMs 2–7); most external right (LM8) and left (LM9) points of the body whorl; highest (LM10), lowest (LM13), most external left (LM12) and right (LM11) point of the aperture; dotted auxiliary lines indicate how landmarks 14– 18 were placed
Fig. 4 in Ecomorphology of a generalist freshwater gastropod: complex relations of shell morphology, habitat, and fecundity
Fig. 4 Discriminant analysis of principal components of the 16 clusters detected by K-means clustering based on single nucleotide polymorphism data. Ellipses represent inertia ellipses
Fig. 3 in Ecomorphology of a generalist freshwater gastropod: complex relations of shell morphology, habitat, and fecundity
Fig. 3 Distribution of cytochrome b haplotypes for sexual (a) and asexual (b) individuals. Sizes of circles and segments are proportional to the number of individuals (up to 20 per site) per haplotype
Water body type Fig. 7 in Ecomorphology of a generalist freshwater gastropod: complex relations of shell morphology, habitat, and fecundity
Water body type Fig. 7 Variation in shell shape (a) and size (b) between water body types. notches extend to ± 1.58 times the IQR divided by the root squared The boxplots show the median (middle line), quartiles (boxes), 1.5 times number of observations, overlapping notches being strong evidence that the interquartile range (IQR) (whiskers), extreme values (dots). The the two medians do not differ (Chambers et al. 1983)
Fig. 6 in Ecomorphology of a generalist freshwater gastropod: complex relations of shell morphology, habitat, and fecundity
Fig. 6 Wireframe representations of the variation in shape (increased ten times) along PC1. The gray wireframes represent the mean shape observed across all sampled individuals; the black wireframes represent the most extreme shapes, with narrow morphs (a) for negative PC1 values and globular morphs (b) for positive PC1 values
Fig. 2 Median joining network for the seven cytochrome b in Ecomorphology of a generalist freshwater gastropod: complex relations of shell morphology, habitat, and fecundity
Fig. 2 Median joining network for the seven cytochrome b haplotypes found in 979 New Zealand Potamopyrgus antipodarum and sampling sites. Each branch represents a single nucleotide substitution and short transversal lines as well as small black circles unsampled haplotypes. Size of circles is proportional to number of individuals per haplotype
Supplementary dataset for the paper "A time window averaging method to mitigate the impact of shell growth trends on Tridacna d18O records".
<p>Data and code for the paper "A time window averaging method to mitigate the impact of shell growth trends on Tridacna δ18O records". We have included an example in the pseudo-Tridacna package v2.1 to demonstrate how users can generate pseudo-Tridacna series.</p>
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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.