13,932 research outputs found
Spathoderma grossum Scheltema & Ivanov 2000
No full text<i>Spathoderma grossum</i> Scheltema & Ivanov, 2000 <p>Scheltema & Ivanov, 2000: 359.</p> <p>(Figures 25, 26; Tables 4a, 5)</p> <p> <b>Additional material examined:</b> Guiana Basin, 5 specimens (Table 4a); Argentine Basin, 66 specimens (Table 5); 1 new record, from West European Basin, 50º27.3'N, 13º20.9'W, 2,506 m (RV Chain cruise 106, stn 318, 19.08.1972).</p> <p> <b>Distribution:</b> Amphi-Atlantic: Eastern Atlantic from the West European Basin to the Cape Basin at abyssal depths> 4,000 m (Scheltema & Ivanov, 2000), except shallower in the northern West European Basin; Western Atlantic from the Guiana Basin on the continental rise at 3,859 m to the abyss at 4,980 m, and not reaching the abyss in the Argentine Basin, 2,440 –3,906 m (Figs 25, 26).</p> <p> <b>Remarks:</b> The new records indicate that <i>S. grossum</i>, as a primarily abyssal or lower continental rise species, occurs on both sides of the Atlantic south of 13°N, but extends further north to 50°N in the eastern Atlantic.</p>Published as part of <i>Ivanov, Dmitry L. & Scheltema, Amélie H., 2008, NMR solution structures of KAP- 1 PHD finger-bromodomain, pp. 1-60 in Zootaxa 1885</i> on page 33, DOI: 10.13018/bmr11036, <a href="http://zenodo.org/record/5133706">http://zenodo.org/record/5133706</a>
Nalassus (Helopocerodes) olgae Nabozhenko & Ivanov, 2015, sp. n.
No full textNalassus (Helopocerodes) olgae sp. n. (Figs 1–12) Type material. Holotype, ♂ and 42 paratypes (21 ♂, 21 ♀) with label: Russia, Primorsky kray, Oktyabrsky District, near Chernyatino, Sinelovka Mt., 17.05.– 28.06.2014 (leg. S.N. Ivanov). Holotype and 3 paratypes are deposited in Zoological Institute RAS (St. Petersburg), 4 paratypes are deposited in Institute of Biology and Soil Science, Far Eastern Branch of RAS (Vladivostok, Russia), 4 paratypes (in ethanol) are in Zoological Department of Ege University (Bornova, Izmir, Turkey) other paratypes are in private collections of M.V. Nabozhenko and S.N. Ivanov. Description. Male. Body dorsally and ventrally black, weakly convex, moderately shining. Legs, antennae and mouthparts brown. Head widest at eye level. Eyes large, moderately convex. Ratio of head width at level of eyes to distance between eyes 1.65. Anterior margin of clypeus straight. Genae strongly rounded. Outer margin of head between genae and clypeus with small sinuation. Punctation of head coarse and dense: diameter of punctures subequal to distance between them on frons and visibly more than distance between punctures around frons and on clypeus. Antennae moderately long (reaching 1 / 6 of elytral length), with 3 apical antennomeres extending beyond base of pronotum. Antennomeres 4–8 visibly thickened. Ratio of length to width of antennomeres 2–11 (antennomere 9 —ratio of width to length): 1.27, 2.25, 1.6, 1.4, 1.4, 1.35, 1.3, 1.06, 1.06 (wider than long), 1.06. Antennomere 3 2 × as long as antennomere 2 and 1.2 × as long as antennomere 4. Antennomeres 9–11 shorter than antennomeres 3–7. Pronotum transverse (1.32 × as wide as long), widest in middle, rarely before middle, 1.6 × as wide as head. Lateral sides of pronotum moderately regularly rounded, rarely slightly sinuate near base. Anterior margin weakly rounded, bisinuate, base straight or weakly rounded. Anterior angles not projected, obtuse, widely rounded; posterior angles obtuse, narrowly rounded on apex. All margins of pronotum beaded, lateral margins wider beaded in basal 1 / 4. Disc regularly convex with widely flattened lateral sides. Punctation of disc moderately coarse and dense: diameter of punctures subequal to distance between them, punctures round. Medial line usually without visible punctation. Hypomera with flattened outer margins, longitudinal wrinkles and sparse recumbent setae. Prosternal process weakly convex. Elytra elongate (1.6 × as long as wide), 2.5 × as long and 1.2 × as wide as pronotum, 1.9–2 × as wide as head. Lateral elytral sides weakly rounded. Elytra moderately convex, dorsal part of epipleural carina invisible dorsally. Punctures in striae merged in deep furrows. Elytral intervals weakly convex, with moderately coarse and dense punctation (distance between punctures 2–3 × as long as puncture diameter), 8 th interval more convex on apex and connected with elytral margin. Epipleura and epipleural carina not reaching elytral apex. Wings very short (1 / 4 of elytral length), reduced. Venation also subreduced, only 3 veins are presented: radial (R), main cubital (Сu) and short anal (A) (Fig. 7). Metaventrite (Fig. 5) with coarse, moderately dense punctation, convex in anterior half and with smooth tubercle, with T-shaped deep depression near base. Abdominal ventrites bare, with dense, moderately coarse punctation, ventrites 1–2 with wrinkles on lateral sides; ventrite 5 with very weak wide depression. Each trochanter with 1 long seta. Tibia straight, tarsi not widened. Genitalia and terminalia (Figs 8–11). Aedeagus short (about 2 mm), weakly sclerotized. Apical piece (without ventral processes) 1.6 × as short as basal piece, median lobe baculi not merged, narrow, with acute apices (Figs. 8, 9). Inner sternite VIII with deep emargination (Fig. 11). Gastral spicula with pseudo trunk (Fig. 10). Body length 8–11 mm, body width 2.9–4.3 mm Female. Antennae shorter, regularly widened to apex, antennomeres not thickened. Metaventrite (Fig. 6) with weak convexity, divided by arched-shaped transverse wrinkle. Genital tubes (Fig. 12): spermatheca and gland short, subequal, spermathecal basal duct absent, spermatheca without processes. Body length 8.7–12 mm, width 3.1–5.2 mm. Etymology. The species is named in honour of Olga Ivanova, wife of the second author. Differential diagnosis. Nalassus olgae sp. n. is closely related to N. magyari, from which it differs by its larger body (length of N. magyari 6–7 mm), widely flattened lateral sides of pronotum and sculpture of metaventrite. The new species differs from Nalassus pekinensis by sculpture of metaventrite, black, moderately shining body (N. pekinensis has brown dull body), thickened antennomeres of male. Habitat. The species was found on branches of Quercus wutaishanica, which was relatively recently recorded for Russian Far East (Beljaev 2004). The species is rarely collected on other trees (for example apricot Prunus sp.) and shrubs (Lespedeza) near the oak forest.Published as part of Nabozhenko, M. V. & Ivanov, S. N., 2015, A new Nalassus Mulsant, 1854 (Coleoptera: Tenebrionidae: Helopini), the first representative of the genus from the Russian Far East, pp. 137-141 in Zootaxa 3955 (1) on pages 138-139, DOI: 10.11646/zootaxa.3955.1.9, http://zenodo.org/record/23464
Agathis semiaciculata IVANOV 1899
No full textAgathis semiaciculata IVANOV 1899 M a t e r i a l e x a m i n e d: Golestan province: Amol, 2, summer 2007. G e n e r a l d i s t r i b u t i o n Switzerland (SIMBOLOTTI & ACHTERBERG 1999), Ukraine, Azerbaidzhan (Mts Caucasus), Kazakhstan, Greece (PAPP 2003).Published as part of Sakenin, H., Naderian, H., Samin, N., Rastegar, J., Tabari, M., Papp, J. & I, Northern, 2012, On a collection of Braconidae (Hymenoptera) from northern Iran, pp. 1319-1330 in Linzer biologische Beiträge 44 (2) on page 1321, DOI: 10.5281/zenodo.533526
Blok et Ivanov : Quelques réflexions
No full textEridano Bazzarelli, Blok and Ivanov. A few considerations.
Until now the problem of relations between Blok and Ivanov was but scantily examined. Through the medium of various writings (letters, intimate diaries, poems) of the two writers, the author of the present article gives us a glimpse of the complexity of their mutual feelings: a mingling of attraction and rejection on Blok's side; admiration, love and attraction with no reservation on the side of Ivanov. It is particularly in the light of the "epistle" addressed by Blok to Viacheslav Ivanov and of the two poems that the latter dedicated to Blok to urge him to return to his quest of the Absolute that the ambiguity of their relations will be made apparent.Eridano Bazzarelli, Blok et Ivanov. Quelques réflexions.
La question des relations de Blok et ď Ivanov a été peu étudiée jusqu'à ce jour. A travers les écrits (lettres, journaux intimes et poèmes) des deux écrivains, l'auteur fait entrevoir la complexité de leurs relations : mélange d'attirance et de rejet (de la part de Blok), mais admiration, amour et attirance sans restrictions (de la part ď Ivanov). C'est surtout à travers 1' "épître" de Blok à Vjačeslav Ivanov et les deux poèmes que ce dernier a dédiés à Blok pour l'exhorter à revenir à sa quête de l'Absolu que l'ambiguïté de leurs relations sera mise en lumière.Bazzarelli Eridano. Blok et Ivanov : Quelques réflexions. In: Cahiers du monde russe et soviétique, vol. 25, n°1, Janvier-Mars 1984. Autour du symbolisme russe 3. (Vjačeslav Ivanov) pp. 49-59
Le banquet platonicien et soufi à la « Tour » pétersbourgeoise : Berdjaev et Vjačeslav Ivanov
No full textAndrej SHISHKIN. The Platonic and Sufi symposion at the "Tower" in St. Petersburg : Ber- diaev and Viacheslav Ivanov.
Viacheslav Ivanov's "Tower" in St. Petersburg was the organizing center of what Khodasevich called the "collective" culture of Russian symbolism. From 1905 on poets, philosophers and painters used to meet there. Participants of the meetings called them "symposia", Plato's symposion was their model.
With the help of memoirs and personal correspondence of the time, the author reconstructs and analyses the events and the main themes discussed at the "Tower". He uses unpublished material from the archives of Viacheslav Ivanov, L. Zinov'eva-Annibal, N. Berdiaev, E. Anichkov, M. Kuzmin and P. Florenskii.
The choice of subjects — Eros, love, death, new birth — , the idea of a dialogue enhanced by philosophical and religious reflection, and the way of approaching them were an answer to the needs of the epoch and the concern for being faithful to the symposial model. The author shows how the symposion in their themes and forms is reflected in the creative work of the participants, Viacheslav Ivanov himself, L. Zinov'eva-Annibal, N. Berdiaev and M. Voloshin.Andrej SHISHKIN, Le banquet platonicien etsoufi à la « Tour» pétersbourgeoise : Berdjaev et Vjačeslav Ivanov.
La « Tour » de Vjačeslav Ivanov à Saint-Pétersbourg a été le centre organisateur de ce que Hodasevič a appelé la « création collective » du symbolisme russe. À partir de 1905 s'y donnaient rendez-vous poètes, philosophes, peintres. Les maîtres de jeu et les participants de ces réunions les appelaient « banquets », le « symposion » platonicien était leur modèle.
À l'aide des mémoires et de la correspondance personnelle de l'époque, l'auteur reconstruit et analyse la succession des événements et les grands thèmes débattus à la «Tour» ; il communique des documents d'archivé inédits de Vjačeslav Ivanov, L. Zinov'eva-Annibal, N. Berdjaev, E. Aničkov, M. Kuzmin, P. Florenskij.
Le choix des grands thèmes — Éros, amour, mort, nouvelle naissance — , l'idée du dialogue éclairé par la réflexion philosophique et religieuse, et la manière de les aborder étaient dictés par les besoins de l'époque et la volonté de rester fidèle au modèle du symposion. L'essai s'applique à montrer comment les thèmes et les formes du symposion se reflètent dans l'œuvre écrite des participants aux réunions de la « Tour », chez Vjačeslav Ivanov lui-même, chez L. Zinov'eva-Annibal, N. Berdjaev et M. VoloSin.Shishkin Andrej, de Morsier Praz Claire. Le banquet platonicien et soufi à la « Tour » pétersbourgeoise : Berdjaev et Vjačeslav Ivanov. In: Cahiers du monde russe : Russie, Empire russe, Union soviétique, États indépendants, vol. 35, n°1-2, Janvier-juin 1994. Un maître de sagesse au XX e siècle Vjačeslav Ivanov et son temps. pp. 15-79
Vjačeslav Ivanov et les juifs
No full textSimon Markish, Viacheslav Ivanov and the Jews.
The present article examines the attitude of Viacheslav Ivanov toward the Jewish people, and most particularly toward Russian Jews. (The opinion of Ivanov concerning the Judaism in its religious aspect and as a specific concept of the world is only slightly touched upon from a general point of view.) The author endeavors to appraise the position taken up by Ivanov on the nature of the problem itself within the context of philosemitism of the Silver Age in Russia.Simon Markish, Vjačeslav Ivanov et les juifs.
Le présent article examine l'attitude de Vjačeslav Ivanov envers le peuple juif, et tout particulièrement envers les juifs russes. (La question de l'attitude d'Ivanov envers le judaïsme en tant que religion et que conception du monde spécifique est seulement effleurée en général.) Il a été tenté d'évaluer la position d'Ivanov sur le fond et dans le contexte du philosémitisme du Siècle d'Argent en Russie.Markish Simon. Vjačeslav Ivanov et les juifs. In: Cahiers du monde russe et soviétique, vol. 25, n°1, Janvier-Mars 1984. Autour du symbolisme russe 3. (Vjačeslav Ivanov) pp. 35-47
Spathoderma bulbosum Ivanov & Scheltema 2008, n. sp.
No full textSpathoderma bulbosum n. sp. (Figures 1E, 19, 20, 23A, B, 24A, 25; Tables 1–3a, 4a, b) Type material: Holotype USNM 1112620. Paratypes: USNM; TAMU; ZMUM Le1–171 (DGoMB C4/1). Type locality: Gulf of Mexico, 28°16.78'N, 87°20.10'W, 2,627 m (DGoMB stn. S38 rep. 3, 14.06.2000). Material examined: Off North Carolina, 1 specimen (Table 3a); Gulf of Mexico, 89 specimens (Table 1); Guiana Basin, 9 specimens (Table 4a); and from off Recife, 6 specimens (Table 4b). Diagnosis: Small, to 2.3 mm, opaque, widest anteriorly (bulbous), tapering posteriorly with no clear demarcation between trunk and shank in most specimens, posterium length 1/3–1/2 trunk length; without distinct fringe at knob but with clusters of long sclerites protruding from knob,>2 times length of knob. Sclerites large, thick relative to body size; bases adpressed, longer on shank than trunk. Oral shield sclerites in 3 rows. Etymology: L. bulbus & Greek bolbos, L. bulbosus -a, -um = a swelling. Description: External appearance (Figs 1E, 19A, B): Length to 2.3 mm, width to 0.7 mm anteriorly; when able to distinguish shank from trunk, posterium/trunk index appears to be 0.35 to almost 0.50; holotype length 2.3 mm, anterium 0.1 mm, trunk 1.5 x 0.7 mm wide anteriorly, gradually tapering to 10 µm. Dorsal trunk and lateral (Figs 19G, 20E, G): as in general description, ranging from 80 x 40 x> 10 µm to>300 x 60 x 9 µm, with blade lengths ~1/2 to equal to base length. Ventral trunk (Fig. 20F): most shorter, but not much narrower, than those from dorsal trunk. Shank (Fig. 20H): similar to those from dorsal trunk with same base length but thinner and with longer blade equal to or longer than base, to 380 x 75 x 7, thickest near waist. Fringing: lacking; shank sclerites covering proximal part of knob. Knob: two types: short, tapered proximally and distally, straight except proximal end with slight curve (Fig. 20I), and very long clusters, 360 x 30 x 7 µm (Fig. 20J). Radula and jaws: 1 examined. Jaws 570 x 275 µm (Fig. 19E); radula teeth 120 µm long, serrated membrane about 70 µm, medial to distal; central plate almost symmetrical, curved, to 50 µm (Fig. 19F). Distribution: Continental slope and rise: off North Carolina ~ 850 m; Gulf of Mexico 622–3,000 m; Guiana Basin 2,487 –2,842 m; and off Recife 943 m (Tables 1–3a, 4a, b) (Figs. 24A, 25). Remarks: Spathoderma bulbosum is distinguished from most Atlantic species of Spathoderma by the bulbous anterior trunk, indistinct demarcation between trunk and shank, knob with clusters of long sclerites, and very thick mid-trunk sclerites in comparison to their length. It can be confused with S. quadratum, however, particularly juvenile specimens; see Remarks under S. quadratum.Published as part of Ivanov, Dmitry L. & Scheltema, Amélie H., 2008, NMR solution structures of KAP- 1 PHD finger-bromodomain, pp. 1-60 in Zootaxa 1885 on pages 30-33, DOI: 10.13018/bmr11036, http://zenodo.org/record/513370
A new Nalassus Mulsant, 1854 (Coleoptera: Tenebrionidae: Helopini), the first representative of the genus from the Russian Far East
No full textNabozhenko, M. V., Ivanov, S. N. (2015): A new Nalassus Mulsant, 1854 (Coleoptera: Tenebrionidae: Helopini), the first representative of the genus from the Russian Far East. Zootaxa 3955 (1): 137-141, DOI: 10.11646/zootaxa.3955.1.
Caulobothrium pieroi Menoret & Ivanov 2023, n. sp.
No full text<i>Caulobothrium pieroi</i> n. sp. <p>urn:lsid:zoobank.org:act: B074FCF2-6E2E-4943-A86D-79D38AA01729</p> <p>(Figs. 4–6)</p> <p> <b>Type host:</b> <i>Pseudobatos horkelii</i> (Müller and Henle), Brazilian guitarfish (Rhinopristiformes: Rhinobatidae).</p> <p> <b>Type locality:</b> Puerto Quequén (38°37’S; 58°53’W), Buenos Aires Province, Argentina, southwestern Atlantic.</p> <p> <b>Site of infection:</b> Spiral intestine of <i>P. horkelii</i>.</p> <p> <b>Prevalence of infection:</b> 50% (2 hosts infected out of 4 Brazilian guitarfishes examined).</p> <p> <b>Material deposited:</b> Holotype (mature worm) MACN-Pa No. 779, 7 paratypes (2 mature worms, 5 strobilae without scolex) MACN-Pa No. 780/1–7.</p> <p>Additional specimens (histological sections and specimens prepared for SEM) retained in the personal collection of Adriana Menoret.</p> <p> <b>Etymology:</b> This species is named in memory of Piero Nardi Pantoli.</p> <p> <b>Description:</b> Based on 8 whole mounts including 3 mature worms (2 complete worms and 1 worm with a bothridium), and 5 strobilae (4 with mature proglottids and 1 with terminal gravid proglottid); and histological sections of 1 terminal mature proglottid.</p> <p>Clade 4: Worms apolytic, 4.7–6.1 (5.3 ± 0.6, n = 3) mm long; greatest width at the level of scolex; proglottids acraspedote, 8–22 (14 ± 5, n = 7) per worm (Fig. 4A). Scolex 755–825 (n = 2) long, 660–675 (n = 2) wide, composed of 4 stalked bothridia, facially loculate bothridia (Fig. 4A, B). Bothridia canoe-shaped, 680–850 (758 ± 63, n = 3) long, 170–280 (225 ± 16, n = 3) wide, with muscular rims. Distal bothridial surface divided by 21–22 (21 ± 1, n = 3) transverse septa delimiting 2 columns of 20–21 (20.5 ± 0.5, n = 3) loculi per column, anteriormost single loculus bearing apical sucker, and posteriormost loculi double, resulting of a total of 43–45 (44 ± 1, n = 3) loculi per bothridium; (Fig. 4A, B, 6A, B, Table 1). Bothridial stalks shorts, fan-shaped. Cephalic peduncle distinct, muscular, 300–670 (417 ± 187, n = 5) long, 100–255 (188 ± 63, n = 5) wide.</p> <p>Immature proglottids 7–21 (13 ± 5, n = 7) in number, initially wider than long, becoming longer than wide with maturity. Single terminal mature proglottid, longer than wide, 770–1,275 (997 ± 180, n = 6) long, 207–330 (278 ± 38, n = 6) wide, length to width ratio 2.7–4.8 (3.6 ± 0.7, n = 6): 1 (Fig. 4A, C). Single gravid proglottid, 1,275 (n = 1) long, 410 (n = 1) wide, length to width ratio 3.1(n = 1): 1. No detached gravid proglottids were seen.</p> <p>Genital pores lateral, alternating irregularly, 27–32% (29 ± 2, n = 7) of proglottid length from posterior margin of proglottid. Testes oval, 44–59 (52 ± 6, n = 5) long, 32–52 (44 ± 8, n = 5) wide, 33‒47 (39 ± 6, n = 4) in number, arranged in 2–3 regular columns, 1 layer deep in cross section, each column extending from near anterior margin of proglottid to posterior margin of ovary. Genital atrium short, narrow (Figs. 4A, C, 5A, B, C). Cirrus sac elongate oval, slightly curved antero-medially from genital pore, thin walled, 75–107 (93 ± 17, n = 3) long, 42–57 (50 ± 7, n = 3) wide, extending to near midline of proglottid, containing cirrus unarmed (Figs. 4C, 5B). Vas deferens extending anteriorly from beyond the sac, entering cirrus sac anteriorly. Vagina simple tubular, extending medially from ootype, passing ventral and turning anteriorly to cirrus sac, opening into genital atrium anterior to cirrus; vaginal sphincter and seminal receptacle not observed (Fig. 4C, 5A, C).</p> <p>Ovary lobulated, poral lobe 285–600 (405 ± 110, n = 6), aporal lobe slightly shorter than poral lobe, 270–590 (408 ± 115, n = 6) long, maximum width 100–160 (133 ± 21, n = 6), H-shaped in dorso-ventral view, tetralobed in cross-section at level of ovarian isthmus (Figs. 4C, 5C). Vitellarium follicular; vitelline follicles wider than long, 25–35 (28 ± 7, n = 4) long, 17–28 (22 ± 4, n = 4) wide, 1–2 dorsal and 1–2 ventral columns on each lateral margin of proglottid, not interrupted by ovary (Figs. 4A, C, 5A, B, C). Mehlis’ gland posterior to ovarian isthmus. Uterus saccate, ventral, extending to near anterior third of proglottid; uteroduct observed (Figs. 4C, 5C). Osmoregulatory ducts 4, 1 dorsal and 1 ventral pairs, medial to vitelline follicles.</p>Published as part of <i>Menoret, Adriana & Ivanov, Verónica A., 2023, Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. (" Tetraphyllidea ") from the southwestern Atlantic, pp. 87-102 in Zootaxa 5361 (1)</i> on pages 93-94, DOI: 10.11646/zootaxa.5361.1.4, <a href="http://zenodo.org/record/10151316">http://zenodo.org/record/10151316</a>
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