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128 results for “micro-Computed Tomography”
Fig. 8 in Micro-computed tomography for natural history specimens: a handbook of best practice protocols
Fig. 8. Sample mounting techniques for plant specimens of different sizes. A. Large samples (>10 mm). B–D. Medium-sized samples (1–10 mm). E–F. Small samples (<1 mm). Image from Staedler et al. 2013, reproduced under a CC-BY license.
Fig. 11 in Micro-computed tomography for natural history specimens: a handbook of best practice protocols
Fig. 11. Histogram of the grayscale value frequency of the scanned specimen (bivalve Musculus costulatus (Risso, 1826). Each peak represents a different structure (in terms of density) of the scanned bivalve. Bright grayscale values (representing low densities) are located at the left side of the histogram, darker values (representing high values) at the right side of the histogram. A. The selection of a range including all peaks, reveals the more detailed morphology of the bivalve (both soft/low density and hard/high density structures). B. A restricted range of histogram values removes structures with brighter values (= low densities). C. A restricted range of histogram values including only one peak reveals only the darkest values (= most dense structures) of the bivalve which correspond to the shell. Image by HCMR micro-CT lab.
Fig. 18 in Micro-computed tomography for natural history specimens: a handbook of best practice protocols
Fig. 18. Scan of a bivalve with (A) and without (B) noise after the selection of the appropriate parameters during the reconstruction procedure. Images by HCMR micro-CT lab.
Fig. 14. A in Micro-computed tomography for natural history specimens: a handbook of best practice protocols
Fig. 14. A marine worm (Polychaeta, Phyllodocidae, Phyllodoce). A. Photograph (CC-BY-SA Hans Hillewaert). B. Volume rendering. C. Isosurface rendering. Images B and C by the HCMR micro-CT lab.
Fig. 13 in Micro-computed tomography for natural history specimens: a handbook of best practice protocols
Fig. 13. Volume rendering of a specimen where the gray level coding for (A) air and (B) air+soft tissues are transparent. Histograms of the grayscale values are included for both images where the selected threshold is indicated by the blue line and the opacity curve is indicated by the red line. Image by MNHN.
Figure 1 from: Samyn Y, Sonet G, d'Acoz C (2021) Exploring the use of micro-computed tomography (micro-CT) in the taxonomy of sea cucumbers: a case-study on the gravel sea cucumber Neopentadactyla mixta (Östergren, 1898) (Echinodermata, Holothuroidea, Phyllophoridae). ZooKeys 1054: 173-184. https://doi.org/10.3897/zookeys.1054.67088
Figure 1 Neopentadactyla mixta (Östergren, 1898) A focus-stacked view of the dorsal-lateral view of dissected specimen B focus-stacked view of the ventral–lateral view of dissected specimen C focus-stacked view of the dorsal–lateral view of a non-dissected specimen D focus-stacked view of the ventral–lateral view of a non-dissected specimen ESEM view of the rosettes from the shaft of a tentacle FSEM view of the 2-pillared tables from the introvert GSEM view of the rods and rosettes from a tentacle tip HSEM view of the 4-pillared tables from the dorsal body wall ISEM view of the 4-pillared tables from the ventral body wall JSEM view of the plates from the dorsal tube feet KSEM view of the plates from the ventral tube feet LSEM view of half of an end-plate from a ventral tube foot. Scale bars: 1 cm (A–D); 50 μm (E–L).
Figure 2 from: Samyn Y, Sonet G, d'Acoz C (2021) Exploring the use of micro-computed tomography (micro-CT) in the taxonomy of sea cucumbers: a case-study on the gravel sea cucumber Neopentadactyla mixta (Östergren, 1898) (Echinodermata, Holothuroidea, Phyllophoridae). ZooKeys 1054: 173-184. https://doi.org/10.3897/zookeys.1054.67088
Figure 2 Neopentadactyla mixta (Östergren, 1898) A micro-CT scan visualizing the position of the calcareous ring B lateral view with micro-CT imaging of the anterior part of the calcareous ring (AR: most anterior radial piece; AIR: most anterior interradial pieces; SAR: subsequent anterior radial pieces; SAIR: subsequent interradial anterior pieces; Mesh: meshwork of radial and interradial median to distal pieces) C oblique view with micro-CT imaging showing a guttered internal side of the calcareous ring D focus-stacked view of the calcareous ring and associated structures (T: tentacles; LM: longitudinal muscle with bifurcation point (BfP); PV: Polian vesicle: SC: stone canal). Scale bars: 1 cm (A–D).
Figure 1 from: Michalik P, Piacentini L, Lipke E, Ramirez M (2013) The enigmatic Otway odd-clawed spider (Progradungula otwayensis Milledge, 1997, Gradungulidae, Araneae): Natural history, first description of the female and micro-computed tomography of the male palpal organ. ZooKeys 335: 101-112. https://doi.org/10.3897/zookeys.335.6030
Figure 1 - Distribution map of Progradungula otwayensis in the Great Otway National Park, Victoria (Australia). Red marks indicate localities for the present study; black circles indicate localities given by Milledge (1997).
Figure 4 from: Michalik P, Piacentini L, Lipke E, Ramirez M (2013) The enigmatic Otway odd-clawed spider (Progradungula otwayensis Milledge, 1997, Gradungulidae, Araneae): Natural history, first description of the female and micro-computed tomography of the male palpal organ. ZooKeys 335: 101-112. https://doi.org/10.3897/zookeys.335.6030
Figure 4 - Female genitalia. A Lateral view of the dome-shaped genital area (compare also to Fig. 3A) (MACN-Ar 30667) B Sagital section through genital area obtained by micro-CT (MACN-Ar 30667) C Posterior view of genital area (MACN-Ar 30667). Spermathecae in anterior (D) and ventral view (E) (ZIMG II/28128). Abbreviation: B bursa; EF epigastric furrow; GP genital pockets; Gl glands; PF postepigastric fold; Sp spermathecae; Ue uterus externus.
Figure 3 from: Michalik P, Piacentini L, Lipke E, Ramirez M (2013) The enigmatic Otway odd-clawed spider (Progradungula otwayensis Milledge, 1997, Gradungulidae, Araneae): Natural history, first description of the female and micro-computed tomography of the male palpal organ. ZooKeys 335: 101-112. https://doi.org/10.3897/zookeys.335.6030
Figure 3 - Somatic characters of the female of Progradungula otwayensis. A Lateral view of prosoma and opisthosoma (ZIMG II/28128) B Dorsal view of prosoma (MV) C Ventral view of Prosoma (MV) D Frontal view of ocular area (ZIMG II/28128) E Ventral view of opisthosoma F Tarsus of leg I G Tarsus of leg IV H Calamistrum. I Ventral view of spinnerets. Scale bar in F–H is 500 µm.
Figure 2 from: Michalik P, Piacentini L, Lipke E, Ramirez M (2013) The enigmatic Otway odd-clawed spider (Progradungula otwayensis Milledge, 1997, Gradungulidae, Araneae): Natural history, first description of the female and micro-computed tomography of the male palpal organ. ZooKeys 335: 101-112. https://doi.org/10.3897/zookeys.335.6030
Figure 2 - A Habitat with supporting web (blue arrow) and sturdy thread (red arrows) connecting with the retreat in the hollow of a Nothofagus cunninghamii tree B Catching ladder in front of a hollow in a large tree fern C Immature male of Progradungula otwayensis holding the catching ladder.
Figure 5 from: Michalik P, Piacentini L, Lipke E, Ramirez M (2013) The enigmatic Otway odd-clawed spider (Progradungula otwayensis Milledge, 1997, Gradungulidae, Araneae): Natural history, first description of the female and micro-computed tomography of the male palpal organ. ZooKeys 335: 101-112. https://doi.org/10.3897/zookeys.335.6030
Figure 5 - Right male palp of Progradungula otwayensis (ZIMG II/28127). A Prolateral view; the arrow marks the section plane of Fig. 5B B Section of the volume rendered male palp C Surface model of the spermophor superimposed on the volume rendering of the male palp (prolateral, ventral and retrolateral views). The cymbium, subtegulum and tegulum are partly removed in the prolateral view to show tendons, muscles and hematodochae. The arrow points to the opening of the embolus. Abbreviation: Cb cymbium; E embolus; m29 muscle 29; m30 muscle 30; mA median apophysis; mH median hematodocha; PE process of embolus; S spermophor; St subtegulum; Te tegulum; tm29 tendon of muscle 29; tm30 tendon of muscle 30.
Figure 5 from: Schmitt M, Uhl G (2015) Functional morphology of the copulatory organs of a reed beetle and a shining leaf beetle (Coleoptera: Chrysomelidae: Donaciinae, Criocerinae) using X-ray micro-computed tomography. In: Jolivet P, Santiago-Blay J, Schmitt M (Eds) Research on Chrysomelidae 5. ZooKeys 547: 193–203. https://doi.org/10.3897/zookeys.547.7143
Figure 5 - Donacia semicuprea. Volume rendering of the virtual sections – sagittal, right to the median – through the abdomina of a mating pair. The opening of the bursa copulatrix (circle) is armed with a conspicuous ring muscle. C: the compound muscle inserting at the manubrium and extending to the lateral rims of the basal orifice of the median lobe; M: median lobe; P: paramere.
Figure 1 from: Schmitt M, Uhl G (2015) Functional morphology of the copulatory organs of a reed beetle and a shining leaf beetle (Coleoptera: Chrysomelidae: Donaciinae, Criocerinae) using X-ray micro-computed tomography. In: Jolivet P, Santiago-Blay J, Schmitt M (Eds) Research on Chrysomelidae 5. ZooKeys 547: 193–203. https://doi.org/10.3897/zookeys.547.7143
Figure 1 - Schematic drawing of the sclerotised part of a Donaciinae aedeagus. The given terms of orientation do not refer to the position within the male abdomen nor within the female during copulation since these structures are rotated during mating. The median lobe is shaded grey. Paramere, tegminal ring and manubrium compose the tegmen.
Figure 6 from: Schmitt M, Uhl G (2015) Functional morphology of the copulatory organs of a reed beetle and a shining leaf beetle (Coleoptera: Chrysomelidae: Donaciinae, Criocerinae) using X-ray micro-computed tomography. In: Jolivet P, Santiago-Blay J, Schmitt M (Eds) Research on Chrysomelidae 5. ZooKeys 547: 193–203. https://doi.org/10.3897/zookeys.547.7143
Figure 6 - Donacia semicuprea, Volume rendering of ca. 390 virtual sections – sagittal, paramedian, tilted to the right – through the abdomina of a mating pair. The bursa is elongate, as seen from the proximal wall (arrow). The yellow shining areas inside the female abdomen are parts of the left ovary. P: paramere.
Figure 3 from: Schmitt M, Uhl G (2015) Functional morphology of the copulatory organs of a reed beetle and a shining leaf beetle (Coleoptera: Chrysomelidae: Donaciinae, Criocerinae) using X-ray micro-computed tomography. In: Jolivet P, Santiago-Blay J, Schmitt M (Eds) Research on Chrysomelidae 5. ZooKeys 547: 193–203. https://doi.org/10.3897/zookeys.547.7143
Figure 3 - Lilioceris lilii, copulating pair. Volume rendering of the virtual sections right to the median, digitally stained. The terminal part of the spermathecal duct can be seen immediately left to the bursa wall. The shape of the bursa is nearly globular. B: bursa copulatrix; C: the compound muscle inserting at the manubrium and extending to the lateral rims of the basal orifice of the median lobe; E: endophallus; M: median lobe.
Figure 2 from: Schmitt M, Uhl G (2015) Functional morphology of the copulatory organs of a reed beetle and a shining leaf beetle (Coleoptera: Chrysomelidae: Donaciinae, Criocerinae) using X-ray micro-computed tomography. In: Jolivet P, Santiago-Blay J, Schmitt M (Eds) Research on Chrysomelidae 5. ZooKeys 547: 193–203. https://doi.org/10.3897/zookeys.547.7143
Figure 2 - Lilioceris lilii. Virtual section – sagittal, median - through the abdomina of a mating pair. The endophallus is fully inflated (2a), the flagellum is positioned over the opening of the spermathecal duct (2b).
Figure 4 from: Schmitt M, Uhl G (2015) Functional morphology of the copulatory organs of a reed beetle and a shining leaf beetle (Coleoptera: Chrysomelidae: Donaciinae, Criocerinae) using X-ray micro-computed tomography. In: Jolivet P, Santiago-Blay J, Schmitt M (Eds) Research on Chrysomelidae 5. ZooKeys 547: 193–203. https://doi.org/10.3897/zookeys.547.7143
Figure 4 - Lilioceris lilii, as Fig. 3, the opening of the bursa copulatrix and the adjacent part of the bursa wall (circle) do not show significant muscle layers but are mere membranes. B: bursa copulatrix; M: median lobe.
Data from: The ‘dance’ of life: visualizing metamorphosis during pupation in the blow fly Calliphora vicina by X-ray video imaging and micro-computed tomography
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Data from: Micro-computed tomography: introducing new dimensions to taxonomy
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