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11 results for “White Surface”
Voxel-level summary statistics of hippocampus shape, white matter microstructure, and cortical surface curvature in UK Biobank (n=33,324)
<p>This deposit hosts GWAS summary statistics of hippocampus shape (n=33,324), white matter microstructure (n=33,324), and cortical surface curvature (n=15,752) using UKB unrelated white subjects. The data was generated by using the highly efficient imaging genetics (<a href="https://github.com/Zhiwen-Owen-Jiang/heig">HEIG v1.1.0</a>) framework where only the triplets - summary statistics of low-dimensional representations (LDRs), the functional bases, and the variance-covariance matrix LDRs - are shared, which is sufficient to recover all voxel-variant pairs as well as to conduct voxel-level heritability and (cross-trait) genetic correlation analysis. Check the <a href="https://github.com/Zhiwen-Owen-Jiang/heig/wiki">tutorial</a> and the <a href="../records/13770930">example data</a> used in the tutorial. </p> <p>The shared data includes:</p> <p>1. Triplets for hippocampus shape measured by the radial distance from the medial model for each vertex. The original images contain 30,000 vertices while the shared data contains 49 LDRs. Left and right hemispheres were analyzed separately, each with 15,000 vertices.</p> <p>2. Triplets for 21 white matter tracts measured by fractional anisotropy. The original images contain 32,217 voxels and each tract contains 88 ~ 3503 voxels while the shared data contains 1,034 LDRs. Tracts were analyzed separately.</p> <p>3. Triplets for cortical surface curvature. The original images contain 59,412 vertices while the shared data contains 1,750 LDRs. The entire brain was analyzed as a whole.</p> <p>4. LD matrix and its inverse for 22 chromosomes including 460k genotyped SNPs. LD matrix and its inverse were estimated by using two separate datasets each containing 8.4k white unrelated subjects in UKB. Two regularization levels are provided: {85%, 80%} for heritability and genetic correlations within images and {75%, 70%} for cross-trait genetic correlations.</p> <p>5. LD matrix and its inverse for 22 chromosomes including 1.2 million imputed HapMap3 SNPs. LD matrix and its inverse were estimated by using two separate datasets each containing 42k white unrelated subjects in UKB. Two regularization levels are provided: {98%, 95%} for heritability and genetic correlations within images and {90%, 85%} for cross-trait genetic correlations.</p>
Text-fig. 20. Proximal right ulna of an embrithopod from White Patch Bone Site. a: lateral view; b: proximal view (anterior to the left); c: stereo view of the articular surface for the humerus. Note the damaged medial and lateral sides of the articular surface (dotted lines) which makes the distal part of the articular surface look narrower than it would have been in life. in Stratigraphy, Chronology And Palaeontology Of The Tertiary Rocks Of The Cheringoma Plateau, Mozambique
Text-fig. 20. Proximal right ulna of an embrithopod from White Patch Bone Site. a: lateral view; b: proximal view (anterior to the left); c: stereo view of the articular surface for the humerus. Note the damaged medial and lateral sides of the articular surface (dotted lines) which makes the distal part of the articular surface look narrower than it would have been in life.
Text-fig. 19. Synchrotron radiation X-ray tomographic microscopy (SRXTM, a–c) of Aristospermum huberi and scanning electron microscope (SEM, d, e) images of Choffaticarpus compactus; Catefica locality, Portugal. a) Volume rendering of strongly flattened, triangular seed with pointed micropylar region; note thin-walled cells of outer integument preserved along the margins of the seed and pitted surface of the crystalliferous inner cells of outer integument where the outer cells are abraded and the narrow, lateral funicle/raphe; b) Volume rendering of seed showing surface of inner integument (endotesta) with cells showing clear imprints of crystals (arrows); c) Longitudinal section (orthoslice yz0241) of seed showing crystalliferous cells of endotesta (white arrows) and the two fiber layers of the tegmen that are perpendicular to each other (inner integument, ii-f, black arrows); d) Fragment of multiparted, apocarpous fruiting structure showing several helically-arranged, laterally flattened, fruitlets; e) Fruitlet in lateral view showing the prominent ventral face with its lateral groove, short attachment scar, and sunken regions of the fruit wall that indicate the probable presence of oil cells. Specimens, Catefica 49-S266049 (a–c), Catefica 49-S172558 (d), Catefica 49-S118675 (e). Scale bars = 300 Μm (a, c–e), 100 Μm (b). in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms
Text-fig. 19. Synchrotron radiation X-ray tomographic microscopy (SRXTM, a–c) of Aristospermum huberi and scanning electron microscope (SEM, d, e) images of Choffaticarpus compactus; Catefica locality, Portugal. a) Volume rendering of strongly flattened, triangular seed with pointed micropylar region; note thin-walled cells of outer integument preserved along the margins of the seed and pitted surface of the crystalliferous inner cells of outer integument where the outer cells are abraded and the narrow, lateral funicle/raphe; b) Volume rendering of seed showing surface of inner integument (endotesta) with cells showing clear imprints of crystals (arrows); c) Longitudinal section (orthoslice yz0241) of seed showing crystalliferous cells of endotesta (white arrows) and the two fiber layers of the tegmen that are perpendicular to each other (inner integument, ii-f, black arrows); d) Fragment of multiparted, apocarpous fruiting structure showing several helically-arranged, laterally flattened, fruitlets; e) Fruitlet in lateral view showing the prominent ventral face with its lateral groove, short attachment scar, and sunken regions of the fruit wall that indicate the probable presence of oil cells. Specimens, Catefica 49-S266049 (a–c), Catefica 49-S172558 (d), Catefica 49-S118675 (e). Scale bars = 300 Μm (a, c–e), 100 Μm (b).
Text-fig. 6. Taimyria triassica NAUGOLNYKH et MOGUTCHEVA gen. et sp. nov., holotype 4287/6. Epidermal-cuticular structure of upper surface of seed-bearing capsule. a–c, e–g: cuticles of upper surface of seed-bearing capsule, b – detail of (a), notice small white spot at picture center, which could be interpreted as scar of small monocellular trichome; d: conducting strand going to seed scar. Locality: Tsvetkov Cape; Lower Triassic, Induan; Keshin Formation. Scale bar 200 µm (a, c, d, g), 100 µm (e, f). in Taimyria Gen. Nov., A New Genus Of Evolutionary Advanced Gymnosperms From Triassic Of The Taimyr Peninsula, Siberia, Russia
Text-fig. 6. Taimyria triassica NAUGOLNYKH et MOGUTCHEVA gen. et sp. nov., holotype 4287/6. Epidermal-cuticular structure of upper surface of seed-bearing capsule. a–c, e–g: cuticles of upper surface of seed-bearing capsule, b – detail of (a), notice small white spot at picture center, which could be interpreted as scar of small monocellular trichome; d: conducting strand going to seed scar. Locality: Tsvetkov Cape; Lower Triassic, Induan; Keshin Formation. Scale bar 200 µm (a, c, d, g), 100 µm (e, f).
Grey-white matter contrast surface files in ABIDE 1&2 datasets
<p>Computed with FreeSurfer.</p> <p>https://surfer.nmr.mgh.harvard.edu/</p> <p>ABIDE dataset:</p> <p>http://fcon_1000.projects.nitrc.org/indi/abide/</p> <p>Used in:</p> <p>Fouquet, M., Traut, N., Beggiato, A., Delorme, R., Bourgeron, T., & Toro, R. (2019). Increased contrast of the grey-white matter boundary in the motor, visual and auditory areas in Autism Spectrum Disorders. <em>BioRxiv</em>, 750117. <a href="https://doi.org/10.1101/750117">https://doi.org/10.1101/750117</a></p> <p>https://github.com/neuroanatomy/GWPC</p>
FIGURE. Coprolites preserved in an early Permian fern mesophyll. A, Gross morphology of a fragmentary fern frond, specimen PB23532. B, Basal part of a penultimate pinna showing sphenopteroid vegetative pinnules. C, Polished surface showing two sporangia with typical annulus structures (white arrowheads). D, SEM image showing an in situ trilete spore. E, The fertile pinnule which contains numerous coprolites along a transverse wound area. F, Enlargement showing coprolites filled with brown to black contents. G, SEM image of the same part in E. H, SEM image showing locally preserved epidermal cells and nearby coprolites. in Discovery of coprolites in an Early Permian fern mesophyll
FIGURE. Coprolites preserved in an early Permian fern mesophyll. A, Gross morphology of a fragmentary fern frond, specimen PB23532. B, Basal part of a penultimate pinna showing sphenopteroid vegetative pinnules. C, Polished surface showing two sporangia with typical annulus structures (white arrowheads). D, SEM image showing an in situ trilete spore. E, The fertile pinnule which contains numerous coprolites along a transverse wound area. F, Enlargement showing coprolites filled with brown to black contents. G, SEM image of the same part in E. H, SEM image showing locally preserved epidermal cells and nearby coprolites.
Distribution. Known only from type locality on S coast of Seram I, Indonesia. Descriptive notes. Head-body 123 mm, tail 128 mm, ear 14-6 mm, hindfoot 26-2 mm; weight 65 g (all mensural data are from holotype). Pavel's Seram Mosaic-tailed Rat is very small-bodied, with dorsal pelage soft and brightly colored rufescent reddish brown, hairs with graybases, and venter contrastingly pure white; tail is slightly longer than head-body length, all black in color, tail scales raised, one hair per scale, scale hairs very short. Upper surfaces of feet are dark gray; hindfeet broad, with first digit long. Cranium is relatively narrow, with nasal profile flat; teeth very small. Single known specimen (the holotype), a pregnant female, has four mammae. in Muridae
Distribution. Known only from type locality on S coast of Seram I, Indonesia. Descriptive notes. Head-body 123 mm, tail 128 mm, ear 14-6 mm, hindfoot 26-2 mm; weight 65 g (all mensural data are from holotype). Pavel's Seram Mosaic-tailed Rat is very small-bodied, with dorsal pelage soft and brightly colored rufescent reddish brown, hairs with graybases, and venter contrastingly pure white; tail is slightly longer than head-body length, all black in color, tail scales raised, one hair per scale, scale hairs very short. Upper surfaces of feet are dark gray; hindfeet broad, with first digit long. Cranium is relatively narrow, with nasal profile flat; teeth very small. Single known specimen (the holotype), a pregnant female, has four mammae.
FIGURE 1. Calamus tadulakoensis. A. Cirrus with irregular spines. B. Grayish-white indumentose abaxial pinna surface. C. Leaf sheath with non-spiny knee. D in A new species of Calamus (Calaminae, Calamoideae, Arecaceae) from Sulawesi, Indonesia
FIGURE 1. Calamus tadulakoensis. A. Cirrus with irregular spines. B. Grayish-white indumentose abaxial pinna surface. C. Leaf sheath with non-spiny knee. D. Fruits borne on short, stout pedicels.
Keeping cool with poop: Urohidrosis lowers leg surface temperature by up to 6ºC in breeding White storks
<p><span>Storks (<em>Ciconiidae</em>) are renowned for defecating on their legs when exposed to high temperatures, a phenomenon known as 'urohidrosis'. Previous work suggested that this behaviour can </span><span>cool down the blood supply to the legs and thus prevent hyperthermia in captive storks when overheated. However, no study has quantified the magnitude or duration of its evaporative cooling effect in free-ranging birds. Here, we combine urohidrosis data with thermal imaging and microclimate data to investigate the thermoregulatory significance of urohidrosis in White storks <em>Ciconia</em> <em>ciconia</em> during the breeding season. We show that urohidrosis can reduce leg surface temperature by up to 6.7 ºC (4.40 ± 1.04 ºC). Yet its cooling effect was of short duration (lasting no more than 2.5 min) and decreased with time since defecation. Thus, for urohidrosis to significantly contribute to heat dissipation, storks must perform it repeatedly when overheated. Indeed, individuals can perform up to 11 urohidrosis events per hour; our estimates indicate that repeated urohidrosis could represent a significant amount of heat loss during short-time spans — equivalent to 4% of daily field metabolic rate for an adult stork. Our results points to an absence of differences in the cooling efficiency of urohidrosis between adults and nestlings, probably because all nestlings were recorded during the last phase of the ontogeny of thermoregulation. Besides, during the hottest days adult storks delivered water to their nestlings, which might allow them to replenish body water reserves to sustain urohidrosis and other heat dissipation behaviours such as panting or gular fluttering. Our results indicate that urohidrosis might buffer the impact of high temperatures in breeding storks, preventing overheating and lethal hyperthermia. Gaining knowledge about behavioural thermoregulation in the heat is therefore crucial to better predict the future persistence and vulnerability of species under different climate warming scenarios.</span></p>
Keeping cool with poop: Urohidrosis lowers leg surface temperature by up to 6ºC in breeding White storks
Open the record for dataset details and reuse information.
Remineralization Capacity and Patient Satisfaction of Self-Assembling Peptide With Fluoride Versus Tooth Protective Coating With Surface Pre-Reacted Glass on White Spot Lesions
ClinicalTrials.gov study NCT07086235. IPD Sharing: NO. Countries: 1. Publications: 0.
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OpenNeuro
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