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Figure 2a from: Cirillo M (2020) Ring-first Mitral Valve Repair. Research Ideas and Outcomes 6: e62369. https://doi.org/10.3897/rio.6.e62369
Figure 2a The two most frequent types of mitral pathology: Barlow's disease (a and b) and fibroelastic deficiency (c and d). The pathological pictures are shown and the advantage of implanting the prosthetic ring before performing the repair of the valve leaflets is illustrated. - In Barlow's disease, the mitral valve takes on a more rounded shape than the normal elliptical one and the tissue is very redundant;
Figure 2d from: Cirillo M (2020) Ring-first Mitral Valve Repair. Research Ideas and Outcomes 6: e62369. https://doi.org/10.3897/rio.6.e62369
Figure 2d The two most frequent types of mitral pathology: Barlow's disease (a and b) and fibroelastic deficiency (c and d). The pathological pictures are shown and the advantage of implanting the prosthetic ring before performing the repair of the valve leaflets is illustrated. - By implanting the ring as the first step, the valve area is reduced and assumes a more correct geometry, therefore the resection can be less extensive (triangular, dashed lines).
Figure 1 from: Cirillo M (2020) Ring-first Mitral Valve Repair. Research Ideas and Outcomes 6: e62369. https://doi.org/10.3897/rio.6.e62369
Figure 1 Normal anatomy of the left heart atrioventricular mitral valve (from https://commons.wikimedia.org/wiki/File:Mitral_Valve_RK.png, licensed CC0).
Figure 2c from: Cirillo M (2020) Ring-first Mitral Valve Repair. Research Ideas and Outcomes 6: e62369. https://doi.org/10.3897/rio.6.e62369
Figure 2c The two most frequent types of mitral pathology: Barlow's disease (a and b) and fibroelastic deficiency (c and d). The pathological pictures are shown and the advantage of implanting the prosthetic ring before performing the repair of the valve leaflets is illustrated. - In fibroelastic deficiency the mitral annulus is dilated by chronic regurgitation, widening the valvular area and this may induce a quite large (quadrangular, dashed lines) resection;
Data from: Reliability of single-use PEEP-valves attached to self-inflating bags during manual ventilation of neonates – an in vitro study
Introduction International resuscitation guidelines suggest to use positive end-expiratory pressure (PEEP) during manual ventilation of neonates. Aim of our study was to test the reliability of self-inflating bags (SIB) with single-use PEEP valves regarding PEEP delivery and the effect of different peak inflation pressures (PIP) and ventilation rates (VR) on the delivered PEEP. Methods Ten new single-use PEEP valves from 5 manufacturers were tested by ventilating an intubated 1kg neonatal manikin containing a lung model with a SIB that was actuated by an electromechanical plunger device. Standard settings: PIP 20cmH2O, VR 60/min, flow 8L/min. PEEP settings of 5 and 10cmH2O were studied. A second test was conducted with settings of PIP 40cmH2O and VR 40/min. The delivered PEEP was measured by a respiratory function monitor (CO2SMO+). Results Valves from one manufacturer delivered no relevant PEEP and were excluded. The remaining valves showed a continuous decay of the delivered pressure during expiration. The median (25th and 75th percentile) delivered PEEP with standard settings was 3.4(2.7–3.8)cmH2O when set to 5cmH2O and 6.1(4.9–7.1)cmH2O when set to 10cmH2O. Increasing the PIP from 20 to 40 cmH2O led to a median (25th and 75th percentile) decrease in PEEP to 2.3(1.8–2.7)cmH2O and 4.3(3.2–4.8)cmH2O; changing VR from 60 to 40/min led to a PEEP decrease to 2.8(2.1–3.3)cmH2O and 5.0(3.5–6.2)cmH2O for both PEEP settings. Conclusion Single-use PEEP valves do not reliably deliver the set PEEP. PIP and VR have an effect on the delivered PEEP. Operators should be aware of these limitations when manually ventilating neonates.
Data from: Dysregulation of valvular interstitial cell let-7c, miR-17, miR-20a, and miR-30d in naturally occurring canine myxomatous mitral valve disease
Canine myxomatous mitral valve disease (MMVD) resembles the early stages of myxomatous pathology seen in human non-syndromic mitral valve prolapse, a common valvular heart disease in the adult human population. Canine MMVD is seen in older subjects, suggesting age-related epigenetic dysregulation leading to derangements in valvular cell populations and matrix synthesis or degradation. We hypothesized that valvular interstitial cells (VICs) undergo disease-relevant changes in miRNA expression. In primary VIC lines from diseased and control valves, miRNA expression was profiled using RT-qPCR and next generation sequencing. VICs from diseased valves showed phenotypic changes consistent with myofibroblastic differentiation (vimentinlow+, a-SMAhigh+), increases in senescence markers (p21, SA-b-gal), and decreased cell viability and proliferation potential. RT-qPCR and miRNA sequencing analyses both showed significant (p<0.05) downregulation of let-7c, miR-17, miR-20a, and miR-30d in VICs from diseased valves compared to controls. Decreased let-7c, miR-17, and miR-20a may contribute to myofibroblastic differentiation in addition to cell senescence, and decreased miR-30d may disinhibit cell apoptosis. These data support the hypothesis that epigenetic dysregulation plays an important role in age-related canine MMVD.
Fig. 11 in Extraordinary morphological changes in valve morphology during the ontogeny of several species of the Australian ostracod genus Bennelongia (Crustacea, Ostracoda)
Fig. 11. Bennelongia sp. 414 nov. sp. from locality CB35a at Wooramel Station (Halse et al. 2000). For the top two rows, all views are dorsal, except top right image which is a ventral view. The bottom row consists of internal views of the two valves of an A-1 specimen. Note that the domes are only visible in A-2, A-3 and A-4 specimens, with possibly a second set of smaller ones positioned anterior to the larger one. The cones, which are few in number, are also very small and only clearly visible in A-3 and A-4 specimens.
Fig. 12 in Extraordinary morphological changes in valve morphology during the ontogeny of several species of the Australian ostracod genus Bennelongia (Crustacea, Ostracoda)
Fig. 12. Bennelongia sp. 414 nov. sp. from locality CB35a at Wooramel Station (Halse et al. 2000). All views are external, except for the right valve displayed at the top right hand corner. As for Figure 11, note that the domes and cones are much more discrete. This is particularly obvious in the bottom image that displays a dorsal view of the carapace of an A-3 juvenile. Note also that the internal view does not show a depression at the location of the dome. The middle right image shows the obvious lateral ridge that defines this new species.
Fig. 15 in Extraordinary morphological changes in valve morphology during the ontogeny of several species of the Australian ostracod genus Bennelongia (Crustacea, Ostracoda)
Fig. 15. Detailed views of the domes and cones of A-3 and A-4 specimens of Bennelongia kimberleyensis Martens et al., 2012 from Taylor's Lagoon. Note the micro-reticulated nature of the domes seen in the top left image in comparison with the rest of the valve the domes are enlarged in the top and bottom images on the right. The bottom left image and middle image on the right clearly show the cones with a lip near the apex and the protruding seta adorning each cone.
Fig. 9 in Extraordinary morphological changes in valve morphology during the ontogeny of several species of the Australian ostracod genus Bennelongia (Crustacea, Ostracoda)
Fig. 9. External views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake. The top image shows an A-3 left valve, whereas the bottom image shows a RV of an A-4 specimen that has been 'flipped over' digitally, so as to permit comparison of the type of external ornamentation and respective location. The white lines (straight as well as circles and ellipses) permit direct comparison between features. Note the presence of particulate matter as well as diatoms, stuck to the anterior portion of the (flipped over) A-4 RV.
Fig. 10 in Extraordinary morphological changes in valve morphology during the ontogeny of several species of the Australian ostracod genus Bennelongia (Crustacea, Ostracoda)
Fig. 10. External views of A-1 carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake. The top image shows an A-1 LV, whereas the bottom image shows a RV of an A-1 specimen that has been 'flipped over' digitally so as to permit comparison of the type of external ornamentation and respective location. Same comments as for Figure 9 concerning the white lines.
FIGURES 61–64. Gonoforcep and penis valve. 61–62. P in The Pachyprotasis indica group (Hymenoptera: Tenthredinidae) in China with descriptions of eight new species
FIGURES 61–64. Gonoforcep and penis valve. 61–62. P. yo ui; 63–64. P. zhouhui.
FIGURES 57–60. Gonoforcep and penis valve. 57–58. P in The Pachyprotasis indica group (Hymenoptera: Tenthredinidae) in China with descriptions of eight new species
FIGURES 57–60. Gonoforcep and penis valve. 57–58. P. paraspinilabria; 59–60. P. rufocinctilia.
FIGURE 9. Penis valve. A1 in The Japanese species of Monoctenus (Hymenoptera: Diprionidae)
FIGURE 9. Penis valve. A1, Monoctenus nipponicus; A2, M. obscuratus hokkaidonis.
Minimally invasive Aortic Valve and Ascending Aorta Replacement
Open the record for dataset details and reuse information.
Рис. 8. Характер фрагментации и сохранности створок устрицы (Crassostrea gigas) иЗ раскопа 2 (фракция крупных фагментов). Fig. 8. Fragmentation and preservation patterns of valves of the giant oyster (Crassostrea gigas) from excavation 2 (fraction of large fragments). in Mollusks from the shell-midden of the Telyakovskogo 2 site in southern Primorye (Yankovskaya culture), their paleoecology and role in paleoeconomy
Рис. 8. Характер фрагментации и сохранности створок устрицы (Crassostrea gigas) иЗ раскопа 2 (фракция крупных фагментов). Fig. 8. Fragmentation and preservation patterns of valves of the giant oyster (Crassostrea gigas) from excavation 2 (fraction of large fragments).
Text-fig. 5. Anacardiaceae (a–m), Burseraceae (n–q). Scale bars = 1 cm. a–f: Pentoperculum sp. a–c: USNM PAL 772360. a: Lateral view of endocarp, apex up; three germination valves visible, the central clearly displaying the bipartite nature of the valve, reflected light, palladium coated. b: Apical view displaying six locules, with two preserved germination valves at the lower left, reflected light, palladium coated. c: Basal view of the endocarp, the locules suggested by swellings; note point of attachment, micro-CT scan surface rendering. d–f: Pentoperculum sp. USNM PAL 772359, reflected light, palladium coated. d: Lateral view of a probable 6-loculed endocarp, apex up; a single intact germination valve in the center, displaying the central lineation that divides it in two. e: Apical view; two bi-partite germination valves are visible, indicated by arrows to the middle cleavage line of two of the valves. f: Basal view, the locules suggested by the undulations in the margin. g–i: Indet. Spondioideae. USNM PAL 772358, reflected light, palladium coated. g: Lateral view of multi-locular endocarp, apex up. h: Apical view showing finely punctuate surface and peripheral locule cavities. i: Basal view. j–m: Cf. Pleiogynium USNM PAL 772357. j: Lateral view of the multi-locular endocarp, apex up; note intact germination valve on left and exposed locule facing the viewer, micro-CT scan surface rendering. k: Lateral view, rotated about 30° from (j), showing three exposed locules, reflected light, palladium coated; note bipartite locule lining at center. l: Apical view of the multilocular endocarp; the locule with intact germination valve at the upper right, reflected light, palladium coated. Arrows to each locule. m: Basal view showing central point of attachment and prominent radiating ridges aligned with the locules, micro-CT scan surface rendering. n–q: Canarium, USNM PAL 772361. Scale bar = 1 cm. n: Lateral view of endocarp directly facing one germination valve flanked by two strong ridges; apex up; specimen coated in sodium nitrate and photographed by R. A. Scott. o: Lateral view facing one of the three pronounced ridges, flanked to the left and right by two germination valves; apex up. p: Apical view displaying the three strong ridges, arching over the apex and flanking three deep embayments, covered with germination valves. q: Basal view, the three ridges being less pronounced. o–q: Reflected light, palladium coated. in The Early Middle Eocene Wagon Bed Carpoflora Of Central Wyoming, U.S.A.
Text-fig. 5. Anacardiaceae (a–m), Burseraceae (n–q). Scale bars = 1 cm. a–f: Pentoperculum sp. a–c: USNM PAL 772360. a: Lateral view of endocarp, apex up; three germination valves visible, the central clearly displaying the bipartite nature of the valve, reflected light, palladium coated. b: Apical view displaying six locules, with two preserved germination valves at the lower left, reflected light, palladium coated. c: Basal view of the endocarp, the locules suggested by swellings; note point of attachment, micro-CT scan surface rendering. d–f: Pentoperculum sp. USNM PAL 772359, reflected light, palladium coated. d: Lateral view of a probable 6-loculed endocarp, apex up; a single intact germination valve in the center, displaying the central lineation that divides it in two. e: Apical view; two bi-partite germination valves are visible, indicated by arrows to the middle cleavage line of two of the valves. f: Basal view, the locules suggested by the undulations in the margin. g–i: Indet. Spondioideae. USNM PAL 772358, reflected light, palladium coated. g: Lateral view of multi-locular endocarp, apex up. h: Apical view showing finely punctuate surface and peripheral locule cavities. i: Basal view. j–m: Cf. Pleiogynium USNM PAL 772357. j: Lateral view of the multi-locular endocarp, apex up; note intact germination valve on left and exposed locule facing the viewer, micro-CT scan surface rendering. k: Lateral view, rotated about 30° from (j), showing three exposed locules, reflected light, palladium coated; note bipartite locule lining at center. l: Apical view of the multilocular endocarp; the locule with intact germination valve at the upper right, reflected light, palladium coated. Arrows to each locule. m: Basal view showing central point of attachment and prominent radiating ridges aligned with the locules, micro-CT scan surface rendering. n–q: Canarium, USNM PAL 772361. Scale bar = 1 cm. n: Lateral view of endocarp directly facing one germination valve flanked by two strong ridges; apex up; specimen coated in sodium nitrate and photographed by R. A. Scott. o: Lateral view facing one of the three pronounced ridges, flanked to the left and right by two germination valves; apex up. p: Apical view displaying the three strong ridges, arching over the apex and flanking three deep embayments, covered with germination valves. q: Basal view, the three ridges being less pronounced. o–q: Reflected light, palladium coated.
Data for "A Double Quantum Dot Spin Valve"
<p>Data for the publication "A Double Quantum Dot Spin Valve"</p>
Text-fig. 9. Accumulation of shattered valves of Aulacoseira granulata (EHRENBERG) SIMONSEN 1979 and Aulacoseira cf. crenulata (EHRENBERG) THWAITES 1848, SEM-photograph, sample Sf 7751, seam 5 subaquatic slide. in Siliceous Microfossils From The Oligocene Tripoli-Deposit Of Seifhennersdorf
Text-fig. 9. Accumulation of shattered valves of Aulacoseira granulata (EHRENBERG) SIMONSEN 1979 and Aulacoseira cf. crenulata (EHRENBERG) THWAITES 1848, SEM-photograph, sample Sf 7751, seam 5 subaquatic slide.
Text-fig. 8. Cracked valves of Aulacoseira cf. crenulata (EHRENBERG) THWAITES 1848 and a small sized valve of Tetracyclus ellipticus (EHRENBERG) GRUNOW 1862 (centre), SEM-photograph, sample Sf 473, seam 5. in Siliceous Microfossils From The Oligocene Tripoli-Deposit Of Seifhennersdorf
Text-fig. 8. Cracked valves of Aulacoseira cf. crenulata (EHRENBERG) THWAITES 1848 and a small sized valve of Tetracyclus ellipticus (EHRENBERG) GRUNOW 1862 (centre), SEM-photograph, sample Sf 473, seam 5.
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