28,507 research outputs found
Fig. 13 in Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait
No full textFig. 13. Adult morphology of Pseudopolydora kuwaiti sp. nov. (live individuals, MIMB 40713). A–D. Anterior ends, dorsal (A, D) and ventral (B–C) view. E–F. Posterior ends, left lateral (E) and dorsal (F) view. Scale bars: A = 500 µm; B–C = 200 µm; D = 100 µm; E = 50 µm.Published as part of Radashevsky, Vasily I., Malyar, Vasily V. & Pankova, Victoria V., 2021, Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait, pp. 120-168 in European Journal of Taxonomy 773 (1) on page 146, DOI: 10.5852/ejt.2021.773.1519, http://zenodo.org/record/554446
Fig. 10 in Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait
No full textFig. 10. Adult morphology of Pseudopolydora arabica Radashevsky & Al-Kandari, 2020 live individuals (A–B) and formalin-fixed specimens stained with MG (C–G). A–C. MIMB 39111. D–G. MIMB 40911. A. Left lateral general view, in reflected light, showing yellowish-white chromatophores on palps. B. Anterior end, dorsal view, in reflected light. C. Parapodia of chaetiger 5. D. Anterior end, dorsal view. E–F. Anterior ends, ventral view. Abbreviations: ne = neuropodial postchaetal lamella; su = dorsal superior capillary chaetae; ve = ventral capillary chaetae. Scale bars: A = 1 mm; B = 200 µm; C = 20 µm; D–G = 100 µm.Published as part of Radashevsky, Vasily I., Malyar, Vasily V. & Pankova, Victoria V., 2021, Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait, pp. 120-168 in European Journal of Taxonomy 773 (1) on page 139, DOI: 10.5852/ejt.2021.773.1519, http://zenodo.org/record/554446
Fig. 11 in Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait
No full textFig. 11. Adult morphology of Pseudopolydora auha sp. nov., holotype (MIMB 40907), formalin-fixed and stained with MG). A. Anterior end, dorsal view. B. Posterior chaetigers, ventral view. C. Posterior end, left lateral view. D. Notopodium of chaetiger 5. E. Notochaetae of chaetiger 5. F. A series of hooded hooks from neuropodium of chaetiger 12. Abbreviations: arrow showing the direction towards the inside of the U-shaped row of spines of chaetiger 5; an = anterior-row spine from notopodium of chaetiger 5; no = notopodial postchaetal lamella; po = posterior-row spine from notopodium of chaetiger 5; su = dorsal superior capillary chaetae. Scale bars: A = 100 µm; B–D = 50 µm; E–F = 20 µm.Published as part of Radashevsky, Vasily I., Malyar, Vasily V. & Pankova, Victoria V., 2021, Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait, pp. 120-168 in European Journal of Taxonomy 773 (1) on page 142, DOI: 10.5852/ejt.2021.773.1519, http://zenodo.org/record/554446
Fig. 9 in Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait
No full textFig. 9. Larval morphology of Pseudopolydora antennata (Claparède, 1868). Live larvae in reflected (A–G) and transmitted (H–K) light. A. 13-chaetiger larva, ventral view. B. 14-chaetiger larva, ventral view. C. The same, dorsal view. D. 14-chaetiger larvae, dorsal view, showing variation in pigmentation. E. 14-chaetiger larva, ventral view. F. 15-chaetiger larva, ventral view. G. The same, dorsal view. H. 14-chaetiger larva, dorsal view. I. The same, ventral view. J. Chaetae of chaetiger 5 of a 15-chaetiger larva. K. Hooded hooks from neuropodium of chaetiger 10 of a 15-chaetiger larva. Abbreviations: su = dorsal superior capillary chaetae; ve = ventral capillary chaetae. Scale bars: A–I = 100 µm; J–K = 20 µm.Published as part of Radashevsky, Vasily I., Malyar, Vasily V. & Pankova, Victoria V., 2021, Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait, pp. 120-168 in European Journal of Taxonomy 773 (1) on page 136, DOI: 10.5852/ejt.2021.773.1519, http://zenodo.org/record/554446
Fig. 21 in Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait
No full textFig. 21. Chaetal morphology of Pseudopolydora multispinosa sp. nov., holotype (MIMB 40906, formalin-fixed and stained with MG). A. Parapodia of chaetiger 5. B–C. Notopodial spines of chaetiger 5. D. Neuropodium of chaetiger 12, showing glandular cells intensely stained with MG around a series of hooded hooks. E. Hooded hooks from neuropodium of chaetiger 12. Abbreviations: arrow showing the direction towards the inside of the U-shaped row of spines; no = notopodial postchaetal lamella; su = dorsal superior capillary chaetae; ve = ventral capillary chaetae. Scale bars: A = 50 µm; B–E = 20 µm.Published as part of Radashevsky, Vasily I., Malyar, Vasily V. & Pankova, Victoria V., 2021, Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait, pp. 120-168 in European Journal of Taxonomy 773 (1) on page 158, DOI: 10.5852/ejt.2021.773.1519, http://zenodo.org/record/554446
Fig. 6 in Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait
No full textFig. 6. Chaetal morphology of Pseudopolydora antennata (Claparède, 1868) (formalin-fixed and stained with MG specimens, MIMB 40895). A. Chaetigers 2–6, left lateral view, showing mirror reflected J-shaped arrangement of the anterior-row notochaetae in notopodia of chaetigers 3 and 4, and U-shaped arrangement of spines in notopodium of chaetiger 5. B. Parapodium of chaetiger 5, dorsal superior capillaries missing. C. Notochaetae of chaetiger 5. D–E. Series of bidentate hooded hooks from middle neuropodia, frontal (D) and lateral (E) view. Abbreviations: arrow showing the direction towards the inside of the U-shaped row of chaetiger 5 spines; an = anterior-row spine from notopodium of chaetiger 5; ch2, ch5 = chaetigers 2 and 5; po = posterior-row spine from notopodium of chaetiger 5; su = dorsal superior capillary chaetae; ve = ventral capillary chaetae. Scale bars: A = 100 µm; B = 20 µm; C–E = 10 µm.Published as part of Radashevsky, Vasily I., Malyar, Vasily V. & Pankova, Victoria V., 2021, Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait, pp. 120-168 in European Journal of Taxonomy 773 (1) on page 133, DOI: 10.5852/ejt.2021.773.1519, http://zenodo.org/record/554446
Fig. 19 in Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait
No full textFig. 19. Chaetal and gamete morphology of Pseudopolydora melanopalpa sp. nov. (formalin-fixed and stained with MG specimens, MIMB 40909). A. Parapodia of chaetiger 5. B. Anterior-row spines of chaetiger 5, view from the outside of the U-shaped spine row.C. Posterior-row falcate spine of chaetiger 5, lateral view. D. Notopodial spines of chaetiger 5, lateral view. E. Neuropodium of chaetiger 10, showing glandular pouch associated with a series of hooded hooks. F. Hooded hooks from middle neuropodium. G. Small previtellogenic oocyte on a genital blood vessel. Abbreviations: arrows showing the direction towards the inside of the U-shaped row of spines; bv = genital blood vessel; gp = glandular pouch; ne = neuropodial postchaetal lamella; oo = oocyte; su = dorsal superior capillary chaetae; ve = ventral capillary chaetae. Scale bars: A, E = 50 µm; B–D, F–G = 20 µm.Published as part of Radashevsky, Vasily I., Malyar, Vasily V. & Pankova, Victoria V., 2021, Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait, pp. 120-168 in European Journal of Taxonomy 773 (1) on page 155, DOI: 10.5852/ejt.2021.773.1519, http://zenodo.org/record/554446
Fig. 3 in Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait
No full textFig. 3. Adult morphology of Pseudopolydora achaeta Radashevsky & Hsieh, 2000 (formalin-fixed and stained with MG specimens, MIMB 40934). A. Anterior end of a small juvenile, dorsal view, palps missing. B. Chaetigers 5–14 of a 70-chaetiger female, dorsal view. C. Chaetigers 3–15 of a 70-chaetiger female, left lateral view. D. Chaetigers 4–6, left lateral view, showing vertical arrangement of heavy spines in notopodium of chaetiger 5. E. Parapodia of chaetiger 5. F. Heavy spines from notopodium of chaetiger 5, focused on anterior-row spines with a pennoned distal end. G. Same, focused on posteriorrow falcate spines. H. Posterior end, dorsal view. I. Same, right lateral view. J. Middle female chaetigers, left lateral view. Abbreviations: arrow showing the direction towards the posterior end of the body; ch5 = ch7 = chaetigers 5 and 7; ne = nephridium; su = dorsal superior capillary chaetae; ve = ventral capillary chaetae. Scale bars: A, D–E = 100 µm; B–C, H–J = 200 µm; F–G = 20 µm.Published as part of Radashevsky, Vasily I., Malyar, Vasily V. & Pankova, Victoria V., 2021, Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait, pp. 120-168 in European Journal of Taxonomy 773 (1) on page 129, DOI: 10.5852/ejt.2021.773.1519, http://zenodo.org/record/554446
Dynamics of finite-sized light spheres in turbulence
No full textWe report experimental results on the Lagrangian dynamics of finite-size light particles in turbulence. Using an orthogonal camera setup and 3D particle tracking, we study the velocity and acceleration statistics of rigid light spheres in a water tunnel with nearly homogeneous and isotropic turbulence. The Reynolds number (ReY) is varied from 180 to 300, and the study covers a range of size ratios (4 < D/η < 16) for marginally light spheres. We find that the normalised acceleration PDF decreases in intermittency with increasing size ratio - in qualitative agreement with the predictions of the Faxén corrected model. We also present preliminary results on the rotational dynamics of large light spheres in turbulence
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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