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219 results for “fine structure”
Figure 8 in Fine structure of the Malpighian tubules in Gryllus campestris (Linnaeus, 1758) (Orthoptera, Gryllidae)
Figure 8. The enlargements of the tips of the microvilli (Þ).
Fig. 17 in An Atlas Of Book Lung Fine Structure In The Order Scorpiones (Arachnida)
Fig. 17. Book lung, posterior spiracle edge
Fig. 15 in An Atlas Of Book Lung Fine Structure In The Order Scorpiones (Arachnida)
Fig. 15. Book lung, lamellar surface (character
Fine Structures in Interlaced Magnetic Flux Ropes via Hall-MHD simulations
<p>This data set contains data files used for Figures 1-7 of paper "Fine structures in interlaced magnetic flux ropes via Hall-MHD simulations," AIP Advances, January 2025, American Institute of Physics,<br>DOI: <span>10.1063/5.0238316.</span></p> <p>Each file is zip compressed ascii format.</p> <p>Each file has a header to describe the contents:</p> <p>Each file is a 3-d model output that contains the following variables in columns:</p> <p>"X [R]" "Y [R]" "Z [R]" "Rho [amu/cm^3]" "U_x [km/s]" "U_y [km/s]" "U_z [km/s]" "B_x [nT]" "B_y [nT]" "B_z [nT]" "P [nPa]"</p> <p>File name contains the time of each result: 02h indicates t=2 hours stimulation time.</p> <p>Each number is a 7-digit accuracy floating number.</p> <p> </p>
A transcriptome for the early-branching fern Botrychium lunaria enables fine-grained resolution of population structure
<p>File S1: Alignment of Botrychium CRY2cA sequences used to infer the genus-level phylogeny.</p> <p>File S2: Peptide sequences used to infer the orthogroups named according species names or identifiers (see Table S1).</p> <p>File S3: Alignments of the orthogroup sequences subset used to infer the phylogenomy.</p> <p>File S4: Output files from modeltest-ng named by orthogroup names.</p> <p>File S5: Output files from raxml-ng named by orthogroup names.</p>
FIGURE 3 in Fine Structure Of The Male Genital Systems, Spermatophores And Unusual Sperm Cells Of Saxidromidae (Acari, Actinotrichida)
FIGURE 3: TEM micrographs of vas deferens and ejaculatory duct of Bovidromus roussouwi. (a) – Composed figure showing complex structure of ejaculatory duct in cross section. Note large synspermium in dorsal chamber lined by peculiar cuticle. Arrow points to eugenital (primary) genital opening. Scale bar: 20 µm. (b) – Vas deferens. Note flat epithelium. Scale bar: 20 µm. (c) – Detail of epithelium of vas deferens with irregularly shaped microvilli. Cells contain many mitochondria and are underlain by a muscular layer. Scale bar: 2 µm. (d) – Dorsal chamber of ejaculatory duct with cuticular fringes and secretion. Scale bar: 10 µm. (e) – The ejaculatory duct is surrounded by a thick muscular layer. Scale bar: 10 µm. (f) – Eugenital opening (arrow) and accessory gland. Scale bar: 20 µm.
FIGURE 4 in Fine Structure Of The Male Genital Systems, Spermatophores And Unusual Sperm Cells Of Saxidromidae (Acari, Actinotrichida)
FIGURE 4:: TEM micrographs of transversely sectioned progenital chambers of Rhinodromus lootsi (a, d-f) and Bovidromus roussouwi (b, c). (a) – Posterior part of ejaculatory duct with eugenital opening (arrow) and secondary genital opening bordered by progenital lips. Note accessory gland and position of (retracted) genital papillae. Scale bar: 20 µm. (b) – Genital papilla. Note many mitochondria and peculiarly modified cuticle. Scale bar: 5 µm. (c) – Detail showing modified cuticle of genital papilla. Note the thick cuticle consisting mainly of many loosely arranged fibres and thus giving a cushion-like appearance. Scale bar: 1.2 µm. (d) – Progenital chamber and accessory glands. Scale bar: 20 µm. (e) – Accessory gland with branching ducts. The cells contain numerous lipid inclusions. Scale bar: 10 µm. (f) – Detail showing two sections through thin ducts, which are cuticle-lined. Scale bar: 2 µm.
FIGURE 2 in Fine Structure Of The Male Genital Systems, Spermatophores And Unusual Sperm Cells Of Saxidromidae (Acari, Actinotrichida)
FIGURE 2: TEM micrographs of details of testis of Rhinodromus lootsi (a-c, e) and Saxidromus delamarei (d). (a) – Overview of testis. Note thick epithelium comprising the glandular part and area with round spermatids composing the germinal part of testis. Scale bar: 20 µm. (b)– Detail of glandular part showing large nuclei, conspicuous nucleoli and Golgi bodies. Scale bar: 5 µm. (c) – Nuclear region of glandular epithelial cell with numerous rough ER cisternae and Golgi bodies. Scale bar: 2 µm. (d) – Detail of germinal part of testis of S. delamarei showing synspermatid containing four nuclei (N1-N4). White arrows indicate cell membrane bordering the synspermatid. Note tubular invaginations at the cell peripheriy. Three acrosomal vacuoles (black arrows) and parts of acrosomal filaments are also seen. The nuclei, at the beginning of chromatin condensation, still have a nuclear envelope (arrowheads). Scale bar: 1 µm. (e) – Distal part of testis with large synspermatid. Two much condensed chromatin bodies are seen. Scale bar: 5 µm.
FIGURE 1 in Fine Structure Of The Male Genital Systems, Spermatophores And Unusual Sperm Cells Of Saxidromidae (Acari, Actinotrichida)
FIGURE 1: Light micrographs of transverse sections through the posterior part of the idiosoma of Rhinodromus lootsi. (a) – Shortly in front of the genital opening. The two vasa deferentia located below the midgut are seen containing several synspermia. (b) – Slightly posterior, the genital opening is appearing. The vasa deferentia are connected by a transverse bridge (asterisk indicates a shrinkage artifact). (c) – More posteriorly, the ejaculatory duct with its dorsal chamber appears (asterisk indicates artifact). (d) – The paired testis are seen consisting of germinal and glandular parts. The dorsomedian excretory organ (i.e. the postcolon; e.g., Alberti and Coons 1999) is seen. Note that all parts of the genital system are located ventral of the digestive system. Scale bar: 50 µm.
FIGURE 6 in Fine Structure Of The Male Genital Systems, Spermatophores And Unusual Sperm Cells Of Saxidromidae (Acari, Actinotrichida)
FIGURE 6: Comparison of mating by Saxidromus delamarei and Rhinodromus lootsi and their corresponding spermatophores as seen in TEM (that of Rh. lootsi partially reconstructed; a, d from Coineau et al., 2006, b from Alberti et al., 2007). (a) – Some details of the mating sequence from above to below: S. delamarei male (black) has captured a female with its forelegs and deposits a rather large spermatophore (arrow). The male then turns round and impales the female onto the spermatophore. The spermatophore almost fills the "entire" female. The male has to separate the upper part of the spermatophore (which is more or less in the female) from the lower part which is attached to the ground. (b) – Longitudinal section of spermatophore of S. delamarei. Note the considerable amount of secretion forming the spermatophore and the rather small sperm chamber containing dense secretion and many synspermia. (c) – Spermatophore of Rh. lootsi drawn to same scale as that of S. delamarei. The head is (largely) represented by one synspermium. Stalk added schematically. Scale bar for b and c: 50 µm. (d) – Mating sequence seen in Rh. lootsi. Note that the spermatophore (arrow) produced by the male is considerably smaller bearing a very small head (i.e., mainly the synspermium). The male can use the same stalk several times depositing further synspermia on it. The male inserts its dorsoanteriad protruding processus into the female's genital opening prior to spermatophore deposition (not shown; see Coineau et al., 2006 for more details).
Storm-scale and fine-scale boundary layer structures of tropical cyclones simulated with the WRF-LES framework
<p>The numerical simulations were carried out on the Tianhe Supercomputer, China. The TCBL data used in this study are uploaded here. Due to the large number, the original simulation data are available on request (liuqy@cma.gov.cn or liguangwu@fudan.edu.cn).</p>
Limited seed dispersal shapes fine-scale spatial genetic structure in a Neotropical dioecious large-seeded palm
<p><span>Seed and pollen dispersal contribute to gene flow and shape the genetic patterns of plants over fine spatial scales. We inferred fine-scale spatial genetic structure (FSGS) and estimated realized dispersal distances in Phytelephas aequatorialis, a Neotropical dioecious large-seeded palm. We aimed to explore how seed and pollen dispersal shape this genetic pattern in a focal population. For this purpose, we genotyped 138 seedlings and 99 adults with 20 newly developed microsatellite markers. We tested if rodent-mediated seed dispersal has a stronger influence than insect-mediated pollen dispersal in shaping FSGS. We also tested if pollen dispersal was influenced by the density of male palms around mother palms in order to further explore this ecological process in large-seeded plants. Rodent-mediated dispersal of these large seeds occurred mostly over short distances (mean 34.76 ± 34.06 m) while pollen dispersal distances were two times higher (mean 67.91 ± 38.29 m). The spatial extent of FSGS up to 35 m and the fact that seed dispersal did not increase the distance at which male alleles disperse suggest that spatially limited seed dispersal is the main factor shaping FSGS and contributes only marginally to gene flow within the population. Pollen dispersal distances depended on the density of male palms, decreasing when individuals show a clumped distribution and increasing when they are scattered. Our results show that limited seed dispersal mediated by rodents shapes FSGS in P. aequatorialis, while more extensive pollen dispersal accounts for a larger contribution to gene flow and may maintain high genetic diversity.</span></p>
Data Used in "Close view of of the lightning attachment process unveils the streamer zone fine structure"
<p>This page contains high-speed video files as .gif and .cine files, for the complete video of Figure 2 (Movie S1 and S3). It also contains the video (Movie S2) from a second high-speed (Phantom V711) looking in a different direction that saw other UUL leaders not registered by the Phantom V2012 camera. There is also an Excel file containing the data analysis. The data uploaded here is sufficient to reproduce the results of the paper titled "Close view of of the lightning attachment process unveils the streamer zone fine structure", submitted for publication in Geophysical Research Letters.</p> <p><em>Instructions to watch the videos</em>: <strong>Movie S1.cine </strong>and<strong> Movie S2.cine:</strong></p> <p>Download and use the software Phantom Camera Control (PCC) available at:</p> <p><a href="https://www.phantomhighspeed.com/resourcesandsupport/phantomresources/pccsoftware">https://www.phantomhighspeed.com/resourcesandsupport/phantomresources/pccsoftware</a></p> <p>The Phantom Camera Control (PCC) software is compatible with Windows 7 Pro and Windows 8.1 and Windows 10, for both 32 and 64-bit operating systems.</p>
Fine-scale environmentally associated spatial structure of Lumpfish ( Cyclopterus lumpus) across the Northwest Atlantic
<p><span>Lumpfish, <em>Cyclopterus lumpus</em>, have historically been harvested throughout Atlantic Canada and are increasingly in demand as a solution to controlling sea lice in Atlantic salmon farms – a process which involves both the domestication and the transfer of lumpfish between geographic regions. Here, we have 70K SNP array data and whole genome re-sequencing data (WGS) for a variety of sample sites across the Northwest Atlantic. </span></p>
Data from: Fine-tuning the nested structure of pollination networks by adaptive interaction switching, biogeography and sampling effect in the Galápagos Islands
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Data from: Ultra-fine scale spatially-integrated mapping of habitat and occupancy using structure-from-motion
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Fine-scale spatial genetic structure, mating and gene flow dispersal patterns in Parkia biglobosa populations under different levels of habitat fragmentation
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Habitat fragmentation influences genetic diversity and differentiation: Fine-scale population structure of Cercis canadensis (eastern redbud)
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Data from: Habitat structure modifies microclimate: an approach for mapping fine-scale thermal refuge
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Data from: High dispersal ability versus migratory traditions: Fine-scale population structure and post-glacial colonization in bar-tailed godwits
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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.