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183 results for “Laser Scanning”
FIGURE 6 in Re-description of Chinese mitten crab Eriocheir sinensis H. Milne Edwards, 1853 (Crustacea: Brachyura: Grapsoidea: Varunidae) zoeal development using confocal laser scanning microscopy
FIGURE 6. Eriocheir sinensis, ZI, first maxilliped, CLSM images with Drishti processing. (A) whole appendage, (B) coxa and basis, (C) coxa and basis rotated to reveal reverse angle of image A, (D) endopod, (E) exopod with 4 natatory setae. Objective: B-D = 40× oil immersion; A, E = 20× dry. Scale bars A, B, D = 100 µm; C, E = 200 µm.
FIGURE 16 in Re-description of Chinese mitten crab Eriocheir sinensis H. Milne Edwards, 1853 (Crustacea: Brachyura: Grapsoidea: Varunidae) zoeal development using confocal laser scanning microscopy
FIGURE 16. Eriocheir sinensis, ZIII, CLSM images with Drishti processing. (A) anterior view of carapace, applying "large images" option with a scanned area of 2×3 fields for image stitching, (B) ventral carapace margin, (C) dorsal spine with 1 pair of setae, applying "large images" option with a scanned area of 1×2 fields for image stitching. Objective: 20× dry. Scale bars = 200 µm.
FIGURE 13 in Re-description of Chinese mitten crab Eriocheir sinensis H. Milne Edwards, 1853 (Crustacea: Brachyura: Grapsoidea: Varunidae) zoeal development using confocal laser scanning microscopy
FIGURE 13. Eriocheir sinensis, ZII, first maxilliped, CLSM images with Drishti processing. (A) whole appendage, applying "large images" option with a scanned area of 1×2 fields for image stitching, (B) endopod, (C) basis, (D) exopod with 6 natatory setae, applying "large images" option with a scanned area of 1×2 fields for image stitching. Objective: A, D = 20× dry; B-C = 40× oil immersion. Scale bars A, D = 200 µm; B-C = 100 µm.
FIGURE 15 in Re-description of Chinese mitten crab Eriocheir sinensis H. Milne Edwards, 1853 (Crustacea: Brachyura: Grapsoidea: Varunidae) zoeal development using confocal laser scanning microscopy
FIGURE 15. Eriocheir sinensis, ZII, pleon and telson, CLSM images with Drishti processing. (A) dorsal view of pleon, image merged using Adobe Photoshop, (B) lateral view of pleon and telson, applying "large images" option with a scanned area of 1×2 fields for image stitching, (C) pleomere 1 with a small dorsal medial seta, (D) dorsal view of telson. Objective: A, C = 40× oil immersion; B, D = 20× dry. Scale bars = 200 µm.
FIGURE 23 in Re-description of Chinese mitten crab Eriocheir sinensis H. Milne Edwards, 1853 (Crustacea: Brachyura: Grapsoidea: Varunidae) zoeal development using confocal laser scanning microscopy
FIGURE 23. Eriocheir sinensis, ZIV, CLSM images with Drishti processing. (A) anterior view of carapace, (B) dorsal spine with 2 pairs of setae, applying "large images" option with a scanned area of 1×3 fields for image stitching. Objective: 20× dry. Scale bars = 200 µm.
FIGURE 11 in Re-description of Chinese mitten crab Eriocheir sinensis H. Milne Edwards, 1853 (Crustacea: Brachyura: Grapsoidea: Varunidae) zoeal development using confocal laser scanning microscopy
FIGURE 11. Eriocheir sinensis, ZII, CLSM images with Drishti processing. (A) antennule, image merged using Adobe Photoshop, (B) antenna with two exopodal setae, (C) maxillule. Objective: 40× oil immersion. Scale bars A–B = 50 µm; C = 100 µm.
FIGURE 18 in Re-description of Chinese mitten crab Eriocheir sinensis H. Milne Edwards, 1853 (Crustacea: Brachyura: Grapsoidea: Varunidae) zoeal development using confocal laser scanning microscopy
FIGURE 18. Eriocheir sinensis, ZIII, CLSM images with Drishti processing. (A) mandible, (B) maxillule, applying "large images" option with a scanned area of 1×2 fields for image stitching. Objective: 40× oil immersion. Scale bars = 100 µm.
FIGURE 7 in Re-description of Chinese mitten crab Eriocheir sinensis H. Milne Edwards, 1853 (Crustacea: Brachyura: Grapsoidea: Varunidae) zoeal development using confocal laser scanning microscopy
FIGURE 7. Eriocheir sinensis, ZI, second maxilliped, CLSM images with Drishti processing. (A) whole appendage, (B) coxa, basis and endopod, applying "large images" option with a scanned area of 1×2 fields for image stitching, (C) distal endopod article. Objective: A = 20× dry; B = 40× oil immersion; C = 60× oil immersion. Scale bars A-B = 100 µm; C = 50 µm.
FIGURE 20 in Re-description of Chinese mitten crab Eriocheir sinensis H. Milne Edwards, 1853 (Crustacea: Brachyura: Grapsoidea: Varunidae) zoeal development using confocal laser scanning microscopy
FIGURE 20. Eriocheir sinensis, ZIII, first maxilliped, CLSM images with Drishti processing. (A) coxa and basis, image merged using VGStudio MAX, (B) exopod with 8 natatory setae, applying "large images" option with a scanned area of 1×2 fields for image stitching, (C) endopod, image merged using VGStudio MAX. Objective: A, C = 40× oil immersion; B = 20× dry. Scale bars A, C = 100 µm; B = 200 µm.
Data from: Ancient lowland Maya complexity as revealed by airborne laser scanning of northern Guatemala
Lowland Maya civilization flourished in the tropical region of the Yucatan peninsula and environs for more than 2500 years (~1000 BCE to 1500 CE). Known for its sophistication in writing, art, architecture, astronomy, and mathematics, Maya civilization still poses questions about the nature of its cities and surrounding populations because of its location in an inaccessible forest. In 2016, an aerial lidar survey across 2144 square kilometers of northern Guatemala mapped natural terrain and archaeological features over several distinct areas. We present results from these data, revealing interconnected urban settlement and landscapes with extensive infrastructural development. Studied through a joint international effort of interdisciplinary teams sharing protocols, this lidar survey compels a reevaluation of Maya demography, agriculture, and political economy and suggests future avenues of field research.
Data from: Tree-centric mapping of forest carbon density from airborne laser scanning and hyperspectral data
Forests are a major component of the global carbon cycle, and accurate estimation of forest carbon stocks and fluxes is important in the context of anthropogenic global change. Airborne laser scanning (ALS) data sets are increasingly recognized as outstanding data sources for high-fidelity mapping of carbon stocks at regional scales. We develop a tree-centric approach to carbon mapping, based on identifying individual tree crowns (ITCs) and species from airborne remote sensing data, from which individual tree carbon stocks are calculated. We identify ITCs from the laser scanning point cloud using a region-growing algorithm and identifying species from airborne hyperspectral data by machine learning. For each detected tree, we predict stem diameter from its height and crown-width estimate. From that point on, we use well-established approaches developed for field-based inventories: above-ground biomasses of trees are estimated using published allometries and summed within plots to estimate carbon density. We show this approach is highly reliable: tests in the Italian Alps demonstrated a close relationship between field- and ALS-based estimates of carbon stocks (r2 = 0·98). Small trees are invisible from the air, and a correction factor is required to accommodate this effect. An advantage of the tree-centric approach over existing area-based methods is that it can produce maps at any scale and is fundamentally based on field-based inventory methods, making it intuitive and transparent. Airborne laser scanning, hyperspectral sensing and computational power are all advancing rapidly, making it increasingly feasible to use ITC approaches for effective mapping of forest carbon density also inside wider carbon mapping programs like REDD++.
FIGURE 1 in Re-description of Craspodema reflectans (Nematoda, Cyatholaimidae) using confocal laser scanning microscopy
FIGURE 1. Male specimen of Craspodema reflectans collected in Maldives during the 2009 scientific cruise. A) Habitus; B) Cervical region; C) Detail of the amphideal fovea and cuticular ornamentation; D) Detail of the buccal cavity; E) Detail of the copulatory apparatus; F) View of the precloacal supplements. Scale bars: A = 100µm; B–E = 10µm; F = 30 µm.
FIGURE 4 in Re-description of Craspodema reflectans (Nematoda, Cyatholaimidae) using confocal laser scanning microscopy
FIGURE 4. Light micrographs of a female of Craspodema reflectans A) View of the dorsal tooth in the buccal cavity; B) View of the ventral teeth; C) Detail of the amphideal fovea; D) Mid-body region showing vulva. Scale bars: A–D = 5 µm.
FIGURE 6 in Re-description of Craspodema reflectans (Nematoda, Cyatholaimidae) using confocal laser scanning microscopy
FIGURE 6. Light micrographs of Craspodema octogoniata male. A) Detail of the amphideal fovea; B) Detail of the dorsal tooth; C) View of the ventral teeth; D) Detail of the cuticular ornamentation in the middle of the body; E) Precloacal supplements; F) Detail of the copulatory apparatus. Scale bars: A–C = 5µm; D = 10µm; E,F = 10µm.
FIGURE 3 in Re-description of Craspodema reflectans (Nematoda, Cyatholaimidae) using confocal laser scanning microscopy
FIGURE 3. Female specimen of Craspodema reflectans. A) Habitus; B) Detail of the amphideal fovea; C) Detail of the buccal cavity. Scale bars: A = 100µm; B,C = 10 µm.
FIGURE 7 in Re-description of Craspodema reflectans (Nematoda, Cyatholaimidae) using confocal laser scanning microscopy
FIGURE 7. Confocal laser scanning micrograph of Craspodema octogoniata male. A) Detail of the amphideal fovea; B) Reconstruction of the cephalic region of a male and detail of the rugae; C) Reconstruction of the buccal cavity; D) Reconstruction of the copulatory apparatus. Scale bars: A–D = 5 µm.
FIGURE 2 in Re-description of Craspodema reflectans (Nematoda, Cyatholaimidae) using confocal laser scanning microscopy
FIGURE 2. Light micrographs of a male of Craspodema reflectans. A) Detail of the buccal cavity; B) Detail of the amphideal fovea; C–D) cuticular ornamentation of the middle part of the body and cervical region; E) Precloacal supplements and gubernaculum structure; F) Detail of the copulatory apparatus. Scale bars: A = 5µm; B–F = 10 µm.
FIGURE 5 in Re-description of Craspodema reflectans (Nematoda, Cyatholaimidae) using confocal laser scanning microscopy
FIGURE 5. Confocal laser scanning micrograph of Craspodema reflectans. A) Reconstruction of the cephalic region of a male and detail of the eversible rugae; B) Reconstruction of the buccal cavity of a male; C) View of the male amphideal fovea; D) View of the female amphideal fovea; E) View of the precloacal supplements region; F) Reconstruction of the copulatory apparatus. Scale bars: A = 5 µm; B–F = 10 µm.
FIGURE 6. 3D in Confocal laser scanning microscopy technique for the study of internal genitalia and external morphology of eriophyoid mites (Acari: Eriophyoidea)
FIGURE 6. 3D-reconstruction of the internal genitalia of Phytoptus rigidus, bottom view (the same female as Fig. 2A). A. spermathecae, B. spherical spermathecal tube, C. capsule-like reservoir in the connection of two spermathecal tubes, D. transversal genital apodeme, E. distal folder of transversal genital apodeme, F. longitudinal genital? apodeme1 (includes two sclerotised plates), G. epigynium.
FIGURE 8 in Confocal laser scanning microscopy technique for the study of internal genitalia and external morphology of eriophyoid mites (Acari: Eriophyoidea)
FIGURE 8. CLSM images of eriophyoid mites using reflected red laser (wavelength emission range of 627–637 nm). A. empodia and leg setae of Phytoptus?tetratrichus; B. empodia and leg setae of P. atherodes; C. gnathosomal stylets of Phytoptus chamaebatiae; D. antero-ventral aspect of Setoptus pini; E. antero-ventral aspect of Oziella sp.; F. prodorsal shield of Boczekella reticulata. Note: the colour was changed from red (original pseudo-colour) to white (A, C, E, F) and to light blue (B) to increase contrast.
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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.