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4,753 results for “SHAPE”
Data from: Evolutionary history shapes patterns of mutualistic benefit in Acacia-rhizobial interactions
The ecological and evolutionary factors that drive the emergence and maintenance of variation in mutualistic benefit (i.e. the benefits provided by one partner to another) in mutualistic symbioses are not well understood. In this study we evaluated the role that host and symbiont phylogeny might play in determining patterns of mutualistic benefit (host response) for interactions among nine species of Acacia and 31 strains of nitrogen-fixing rhizobial bacteria. Using phylogenetic comparative methods we compared patterns of variation in mutualistic benefit to rhizobial phylogenies constructed from housekeeping and symbiosis genes; and a multi-gene host phylogeny. We found widespread genotype-by-genotype variation in patterns of plant growth. A relatively large component of this variation (21-28%) was strongly influenced by the interacting evolutionary histories of both partners, such that phylogenetically similar host species had similar growth responses when inoculated with phylogenetically similar rhizobia. We also found a relatively large non-phylogenetic effect for the average mutualistic benefit provided by rhizobia to plants, such that phylogenetic relatedness did not predict the overall benefit provided by rhizobia across all hosts. We conclude that phylogenetic relatedness should frequently predict patterns of mutualistic benefit in acacia-rhizobial mutualistic interactions; but that some mutualistic traits also evolve independently of the phylogenies.
Data from: High quality statistical shape modelling of the human nasal cavity and applications
The human nose is a complex organ that shows large morphological variations and has many important functions. However, the relation between shape and function is not yet fully understood. In this work, we present a high quality statistical shape model of the human nose based on clinical CT data of 46 patients. A technique based on cylindrical parametrization was used to create a correspondence between the nasal shapes of the population. Applying principal component analysis on these corresponded nasal cavities resulted in an average nasal geometry and geometrical variations, known as principal components, present in the population with a high precision. The analysis led to 46 principal components, which account for 95 percent of the total geometrical variation captured. These variations are first discussed qualitatively, and the effect on the average nasal shape of the first five principal components is visualized. Hereafter, by using this statistical shape model, two application examples that lead to quantitative data are shown: nasal shape in function of age and gender, and a morphometric analysis of different anatomical regions. Shape models, as the one presented here, can help to get a better understanding of nasal shape and variation, and their relationship with demographic data.
Virus Capsomer Model [wedge-shaped structure 1]
PICORNAVIRIDAE – Designing Model and Visualization Concepts in Virology Educational T=3 [and T=pseudo3] Virus Structure Model [assembly unit 02/08] Common schematic representation for visualizing "wedge-shaped" asymmetric units. These are formed by virus protein subunits, five asymmetric units [structural units] combined form a capsomere [advancement: visual subdivision by gaps]. Source: Objaverse 1.0 / Sketchfab
Egg-shaped vase with flaring rim - PG.2000.66
It concerns a type 4, egg-shaped pot in the typology of the El Argar culture of the Siret brothers, excavated in the southeast of Spain. These hand shaped vessels are associated with funerary contexts and are regularly found together with type 8 beakers. This type of ceramic is characterized by a dark, polished, metallic surface. (Argaric culture, 2300 BC - 1600 BC). Inv n.: PG.2000.63 Find this object in the museum's online catalog [Carmentis](https://www.carmentis.be:443/eMP/eMuseumPlus?service=ExternalInterface&module=collection&objectId=106010&viewType=detailView) Source: Objaverse 1.0 / Sketchfab
Fish-shaped vase
Fish-shaped vase (American scorpion fish?), Western Mexico - Colima - Colima culture - Colima style - Preclassic recent - Classic old 200 BCE - 300 CE, terracotta. Musée d'Art et d'Histoire (Musée du Cinquantenaire, Brussels, Belgium). Made with CapturingReality. For more updates, please consider to follow me on Twitter at @GeoffreyMarchal. Source: Objaverse 1.0 / Sketchfab
Greek or Roman Barrel Shaped Container
Location: Museo Archeologico di Aidone, Aidone, Sicily, Italy Description: Greek or Roman Barrel Shaped Container Data Capture Method: Laser Scanning Processing Software: Artec Studio 12 Citation: The data for this project were originally collected as a joint effort between the University of Catania and CVAST at the University of South Florida (USF), with the collaboration of the Fondazione Bruno Kessler (FBK). Dr. Mariarita Sgarlata and Dr. Herbert Maschner, Principal Investigators. We gratefully acknowledge the participation of the administrators of the Villa Romana del Casale and the Museo Archeologico di Aidone. The data have been transferred to Global Digital Heritage (GDH) for processing and analysis. Funding for this project, both at USF and at GDH, has been provided by the Hitz Foundation, Herbert Maschner, Principal Investigator. License: Source: Objaverse 1.0 / Sketchfab
Supplementary files of Jorge M G, Brennand T A. Measuring (subglacial) bedform orientation, one-dimensional size, and directional shape - method accuracy. PLOS ONE, revision phase.
<p>S1: shapefile of longitudinal subglacial bedform dataset.<br /> S2: spreadsheet with Fig. 6 signed error distributions.</p> <p> </p>
FIGURE 2. Shape difference between H. tuxtlaensis from Lake Catemaco and H in A new livebearing fish, Heterandria tuxtlaensis, from Lake Catemaco, Veracruz, Mexico (Cyprinodontiformes: Poeciliidae)
FIGURE 2. Shape difference between H. tuxtlaensis from Lake Catemaco and H. bimaculata from Sontecomapan. Transformation grids show the linear regression of shape on habitat controlling for allometry. A) Males. The shape gradient for males explained 29.6 % of total shape variance. B) Females. The gradient for females explained 30.5 % of total shape variance. Multivariate least squares means (i.e. group centroids) are plotted and their 95 % confidence limits are given as ellipses.
FIGURE 3 in Three new species of Polypedilum s. str. Kieffer from China, with L-shaped superior volsella (Diptera: Chironomidae)
FIGURE 3. Polypedilum (Polypedilum) hainanense sp. nov., male imago. A. Wing. B. Fore tibial scale. C. Superior volsella. D. Hypopygium, dorsal view. E. Hypopygium, ventral view.
FIGURE 2 in Three new species of Polypedilum s. str. Kieffer from China, with L-shaped superior volsella (Diptera: Chironomidae)
FIGURE 2. Polypedilum (Polypedilum) depile sp. nov., male imago. A. Wing. B. Fore tibial scale. C. Superior volsella. D. Hypopygium, dorsal view. E. Hypopygium, ventral view.
FIGURE 1 in Three new species of Polypedilum s. str. Kieffer from China, with L-shaped superior volsella (Diptera: Chironomidae)
FIGURE 1. Polypedilum (Polypedilum) coalitum sp. nov., male imago. A. Palp. B. Wing. C. Fore tibial scale. D. Superior volsella. E. Hypopygium, dorsal view. F. Hypopygium, ventral view.
FIGURE 3. Acicular shapes. A–B in A taxonomic revision of the genus Haplosyllis Langerhans, 1887 (Polychaeta: Syllidae: Syllinae)
FIGURE 3. Acicular shapes. A–B—aciculae with curved tips upwards directed, C— acicula with curved tips 90º bent, D—straight acicula.
FIGURE 4 in A new Amphisbaena with chevron-shaped anterior body annuli from state of Pernambuco: Brazil (Squamata: Amphisbaenidae)
FIGURE 4. Type locality of Amphisbaena supernumeraria (MZUSP 98101) in the state of Pernambuco, northeastern Brazil.
FIGURE 1 in A new Amphisbaena with chevron-shaped anterior body annuli from state of Pernambuco: Brazil (Squamata: Amphisbaenidae)
FIGURE 1. Lateral, ventral, and dorsal views of the head of the holotype of Amphisbaena supernumeraria (MZUSP 98101).
FIGURE 3 in A new Amphisbaena with chevron-shaped anterior body annuli from state of Pernambuco: Brazil (Squamata: Amphisbaenidae)
FIGURE 3. Photo of lateral (A) and ventral (B) view of the tail of the holotype of Amphisbaena supernumeraria (MZUSP 98101).
FIGURE 2 in A new Amphisbaena with chevron-shaped anterior body annuli from state of Pernambuco: Brazil (Squamata: Amphisbaenidae)
FIGURE 2. Ventral view of the cloacal region of the holotype of Amphisbaena supernumeraria (MZUSP 98101).
FIGURE 4. Stylet furcae shapes. A in Definition of families, subfamilies, genera and subgenera of the Eutardigrada, and keys to their identification
FIGURE 4. Stylet furcae shapes. A, typically-shaped furcae (the basal portion is enlarged and has two caudal branches with thickened, swollen, rounded apices); B, Richtersius type (the branches, very robust, have thickened but neither swollen nor rounded apices); C, Insuetifurca type (the branches are arched and converging backwards); D, Eohypsibius type (the branches are arched, without particularly swollen apices); E, Mesocrista type (the basal portion is not very enlarged and the branches have thickened, swollen, rounded apices); F, Platicrista type (the branches are pointing backwards instead of backwards and sideways, and on lateral view they are spoon like and tapering at their apices); G, Astatumen type (the branches are very short and taper at their apices); H, Itaquascon type (the branches are very short and without swollen apices); I, Milnesium type (triangular in shape without long branches pointing backwards and sideways). (A, E, F, G from Pilato, 1987. C, from Guidetti & Pilato, 2003).
FIGURE 8. Discriminant value histograms using shape information from Galaxiella pusilla s.s in A review of Galaxiella pusilla (Mack) (Teleostei: Galaxiidae) in south-eastern Australia with a description of a new species
FIGURE 8. Discriminant value histograms using shape information from Galaxiella pusilla s.s. (black) and Galaxiella toourtkoourt (grey) generated from 12 landmarks for a) females, b) males.
FIGURE 7. Principal components analysis using shape information for Galaxiella pusilla s.s in A review of Galaxiella pusilla (Mack) (Teleostei: Galaxiidae) in south-eastern Australia with a description of a new species
FIGURE 7. Principal components analysis using shape information for Galaxiella pusilla s.s. (black) and Galaxiella toourtkoourt (grey) generated from 12 landmarks for a) females (PC1 and PC2 explain 52.0% and 14.5% of the total variance, respectively), b) males (PC1 and PC2 explain 54.4% and 14.7% of the total variance, respectively), and shape changes associated with principal component 2 for c) females and d) males.
Fig. 11 in Phylogenetic reconstruction based on COI reshuffles the taxonomy of hyalosphenid shelled (testate) amoebae and reveals the convoluted evolution of shell plate shapes
Fig. 11. Shape PCA performed exclusively on barcoded Quadrulella cell morphology based on the test length (L), breadth (B), L/B ratio and the size of plates [min./max. values and surface of nine plates (µm2)]. The shape PCA was performed according to the MRA method (Baur and Leuenberger, 2011). Q. madibai can be discriminated based on its very small B/L ratio and its high aperture/B ratio (cf. Table 4), although it is not visible on the PCA.
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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.