192,813 research outputs found
Prostigmaeus Kuznetsov
No full textGenus: Prostigmaeus Kuznetsov Type species: Prostigmaeus tauricus Kuznetsov, 1984. Idiosoma elongate. Prodorsal shield with three pairs of setae (vi, ve and sci), setae sce lateral to sci on integument. Setae c 2 lateroventrally placed on shields. Hysterosoma with a relatively long median shield, bearing setae c 1 and d 1; setae e 1 and f 1 placed on four small shields, posterior to median shield. Suranal shield divided or undivided, with three pairs of setae. Terminal eupathidia on palp tarsus separate. Subcapitulum with two pairs of subcapitular setae. Coxisternal shields present. Anogenital area with four pairs of aggenital, three pairs of genital and three pairs of pseudanal setae (Kuznetsov 1984; Ueckermann & Meyer 1987; Bagheri et al. 2010). This genus contains three species in the world: P. tauricus Kuznetsov from Ukraine, P. vrystaatensis Ueckermann & Meyer from South Africa, and P. khanjanii Bagheri & Ghorbani from Iran (Kuznetsov 1984; Ueckermann & Meyer 1987; Bagheri et al. 2010). In this paper the fourth species, P. integrius sp. nov., is described.Published as part of Dönel, Güldem & Doğan, Salih, 2011, The stigmaeid mites (Acari: Stigmaeidae) of Kelkit Valley (Turkey), pp. 1-56 in Zootaxa 2942 on page 33, DOI: 10.5281/zenodo.20126
Stability conditions on Kuznetsov components
No full textWe introduce a general method to induce Bridgeland stability conditions on
semiorthogonal components of triangulated categories. In particular, we prove
the existence of Bridgeland stability conditions on the Kuznetsov component of
the derived category of Fano threefolds and of cubic fourfolds. As an
application, in the appendix, written jointly with Xiaolei Zhao, we give a
variant of the proof of the Torelli theorem for cubic fourfolds by Huybrechts
and Rennemo.Comment: 53 pages. Appendix about the Torelli theorem for cubic fourfolds by
A. Bayer, M. Lahoz, E. Macr\`i, P. Stellari, and X. Zhao. Final version to
appear in Ann. Sci. \'Ec. Norm. Sup\'e
Stigmaeus planus Kuznetsov
No full text<i>Stigmaeus planus</i> Kuznetsov <p> <i>Stigmaeus planus</i> Kuznetsov, 1978: 691; Koç & Ayyıldız, 1997: 453; Doġan, 2007: 20; Erman, Özkan, Ayyıldız & Doġan, 2007: 10.</p> <p> <b>Material examined.</b> 1 Ƥ from moss on stone, 40°17'81'' N, 37°44'71'' E, 644 m, Koyulhisar, 17 V 2009; ZMAU.</p> <p> <b>Distribution.</b> Crimea and Turkey (Kuznetsov 1978; Koç & Ayyıldız 1997; Doġan 2007; Erman <i>et al</i>. 2007).</p> <p> <b>Remarks.</b> This species is characterized by having the suranal shield divided, auxiliary and lateral zonal shields absent, <i>h</i> 3 present, and the ventral opisthosomal area with two pairs of genital and four pairs of aggenital setae. In the Turkish specimens the setal formulas of genua and femora are 6(κ)–3–0–2, 4–4–3–2 respectively. The Turkish specimens exhibit most characters of <i>S. planus</i> except by having two setae on genu IV.</p>Published as part of <i>Dönel, Güldem & Doğan, Salih, 2011, The stigmaeid mites (Acari: Stigmaeidae) of Kelkit Valley (Turkey), pp. 1-56 in Zootaxa 2942</i> on pages 50-51, DOI: <a href="http://zenodo.org/record/201260">10.5281/zenodo.201260</a>
Stigmaeus corticeus Kuznetsov and Wainstein 1977
No full text<i>Stigmaeus corticeus</i> Kuznetsov and Wainstein, 1977 <p> This species was described from Russia (Tatarstan) from soil (Kuznetsov & Wainstein 1977). It was also recorded from Nort-Eastern Ukraine from moss (Khaustov & Kuznetsov 1997). Faraji & Ueckermann (2006) redescribed this species based on specimens from France. This is the first record of <i>S. corticeus</i> from the Crimean peninsula. Material examined. Three females, CRIMEA: Nikita mountain pasture, about 1250 m.a.s.l., from sod, 12 September 2000, coll. Khaustov A.A.</p>Published as part of <i>Khaustov, Alexander A., 2014, New species and new records of mites of the genus Stigmaeus (Acari: Prostigmata: Stigmaeidae) from Crimea, pp. 237-253 in Zootaxa 3794 (2)</i> on page 246, DOI: 10.11646/zootaxa.3794.2.3, <a href="http://zenodo.org/record/228091">http://zenodo.org/record/228091</a>
Étude de comportements en temps long de solutions des Equations de type Zakharov-Kuznetsov
No full textIn this thesis, we study different aspects of behaviors in long time of the generalized Zakharov-Kuznetsov equations. The first chapter sums up the state-of-the-art knowledges on those equations. The second chapter is dedicated to polynomial growth of Sobolev norms for the Zakharov-Kuznetsov equation in dimension d=2 and a power of nonlinearity p=2. In the third chapter, we prove existence and uniqueness of multi-solitons associated with different equation of Zakharov-Kuznetsov equations ((d,p)=(2,2),(2,3), et (3,2)). In the last chapter, we introduce some ideas of construction of a 2-solitons with strong interaction for the equation in dimension and a non-linearity f(u)=(|u| puissance p-1) u, with 2<p<3. .Cette thèse porte sur différents aspects des comportements en temps long des équations de Zakharov-Kuznetsov généralisées. Le premier chapitre résume l’état actuel des connaissances sur ces équations. Le second chapitre est consacré à la croissance polynomiale des normes de Sobolev pour l’équation de Zakharov-Kuznetsov en dimension d=2 et une puissance de non-linéarité p=2 . Dans le troisième chapitre, on démontre l’existence et l’unicité des multi-solitons associés à différentes équations de Zakharov-Kuznetsov ( (d,p)=(2,2),(2,3), et (3,2)). Enfin, dans un quatrième chapitre, on expose des idées de construction de 2-solitons avec interaction forte pour l’équation en dimension d=2 et une non-linéarité f(u)=(|u| puissance p-1) u, où 2<p<3
Ancylis melanostigma Kuznetsov 1970
No full text<i>Ancylis melanostigma</i> Kuznetsov, 1970 <p>(Figs. 3, 14)</p> <p> <i>Ancylis melanostigma</i> Kuznetsov, 1970: 436. TL: Russia (Maritime Territory, Amur, Suputinka Reservation).</p> <p> Diagnosis. This species is similar in appearance to <i>A. amplimacula</i> Falkovitsh but is easily distinguished by the paler subapical patch of the forewing and the long antrum, which constitutes the posterior 1/3 of the ductus bursae of the female genitalia.</p> <p>Re­description. Adult: Wingspan 16 mm in female. Forewing with costa curved at base then arched towards apex, strongly arched basally, becoming gently arched apically; ground color white; basal patch dark brown, fairly broad, covering 1/3 of forewing; subapical patch indistinct, light brown; apical spot reddish brown, very small, with characteristic tiny, black, subapical costal spot. Hindwing light brown, slightly darker in outer area; cilia long, grayish brown.</p> <p>Female genitalia (Fig. 14): Papillae anales slender, long. Apophyses anteriores twice as long as apophyses posteriors. Ostium bursae with antrum trumpet­shaped, representing posterior 1/3 of ductus bursae. Ductus bursae moderately long, approximately the same length as corpus bursae; ductus seminalis originating from middle of ductus bursae. Corpus bursae ovate with two, large, different­sized signa.</p> <p>Material examined: [Heilongjiang] 1♀, Laoyeling, Early July 1995 (SC Yan), Genitalia slide NEFU ENT­ 95025.</p> <p>Distribution. China (new record); Korea; Japan; Russia.</p>Published as part of <i>Byun, Bong-Kyu & Yan, Shanchun, 2005, Description of a new species, records of five previously unrecorded species, and rediscovery of a lost species in the genus Ancylis Hübner (Lepidoptera: Tortricidae) from China, pp. 17-26 in Zootaxa 1103 (1103)</i> on pages 21-2
Paravillersia grata Kuznetsov 1978
No full textParavillersia grata Kuznetsov, 1978 (Figs. 6–9) Paravillersia grata Kuznetsov, 1978: 50, fig. 1. FIGURE 6. Paravillersia grata Kuznetsov, 1978, female: A—seta ve, B—seta sci, C—seta c 1, D—seta e 2, E—seta f 1, F—seta h 1. Supplementary description. FEMALE (Figs. 6–9). Dorsal idiosomal setae not so heavily barbed as in original description (Fig. 6), distinctly thickened distally and sparsely barbed in distal half. Setae c 1 and d 1 almost clavate. Diameter of eyes 12. Length of dorsal setae: vi 37, ve 55, sci 38, sce 45, c 1 37, c 2 20, d 1 40, d 2 40, e 1 53, e 2 43, f 1 58, h 1 44, h 2 37. Distances between setae: vi– vi 37, ve–ve 82, sci–sci 150, c 1 – c 1 140, d 1 – d 1 135, d 2 – d 2 250, e 1 – e 1 135, e 2 – e 2 205, f 1 – f 1 92. Сallosities situated very close to each other (Fig. 7 A); inner callosity bean-like, outer oval. Setae c 2 situated on humeral shield (Fig. 7 A). Length of ventral setae: 1 a 32, 1 b 28, 1 c 26, 2 b 28, 2 c 23, 3 a 31, 3 b 24, 3 c 25, 4 a 24, 4 b 20, 4 c 19, ag 1 18, ag 2 19, ag 3 18, ps 1 20, ps 2 15, ps 3 15. Gnathosoma (Fig. 7 B). Palps as in P. jamaliensis sp. nov. Rostrum of subcapitulum long, similar with that of P. j am al i e n s i s sp. nov. Setae or 1 thickened and curved. Length of subcapitular setae: m 25, n 24, or 1 13, or 2 18. Legs (Figs. 8–9). Empodial raylets weakly capitate. Leg I (Fig. 8 A). Coxae I posterodorsally with seta-like supracoxal setae (el). Setae d on tibia and (p), (tc), (ft) on tarsus represented by eupathidia. Setae d, l” on genu and d on femur distinctly thickened, baculiform, sparsely barbed. Seta k 10. Solenidion ω 21 long, finger-shaped; solenidion φ 12 long baculiform, φp attenuate, 25 long. Leg II (Fig. 8 B). Setae d on tibia, p’ and tc’ on tarsus represented by eupathidia. Setae d on genu and femur distinctly thickened, baculiform, sparsely barbed. Solenidion ω 14 long, finger–shaped; solenidion φ 20 long, attenuate. Seta k 6 long. Leg III (Fig. 9 A). Solenidion ω 6 long, baculiform; solenidion φ 18 long, attenuate. Setae d on tibia, genu and femur distinctly thickened, baculiform, sparsely barbed. Leg IV (Fig. 9 B). Solenidion ω 4 long, baculiform; solenidion φ 21 long, attenuate. Setae d on tibia, genu and femur distinctly thickened, baculiform, sparsely barbed. Material examined. Holotype female, RUSSIA: Voronezh Province, Voronezh, in litter under coniferous, 30 October 1972, coll. N.N. Kuznetsov. Type deposition. The holotype is deposited in the mite collection of the Nikita Botanical Gardence, Yalta, Crimea, Russia. Remarks. The female holotype is in rather bad condition, especially idiosoma and I provided only supplementary description because some body structures are almost invisible. The dorsal body setae are not so heavily barbed as in the original description. Setae c 2 are situated on the humeral shield instead out of the shield in the original description.Published as part of Khaustov, Alexander A., 2014, A new species of the genus Paravillersia (Acari: Prostigmata: Stigmaeidae) from Western Siberia, with supplementary description of Paravillersia grata Kuznetsov, 1978 in Zootaxa 3873 (1), DOI: 10.11646/zootaxa.3873.1.5, http://zenodo.org/record/22878
A study of long time behaviors of solutions of Zakharov-Kuznetsov equations
No full textCette thèse porte sur différents aspects des comportements en temps long des équations de Zakharov-Kuznetsov généralisées. Le premier chapitre résume l’état actuel des connaissances sur ces équations. Le second chapitre est consacré à la croissance polynomiale des normes de Sobolev pour l’équation de Zakharov-Kuznetsov en dimension d=2 et une puissance de non-linéarité p=2 . Dans le troisième chapitre, on démontre l’existence et l’unicité des multi-solitons associés à différentes équations de Zakharov-Kuznetsov ( (d,p)=(2,2),(2,3), et (3,2)). Enfin, dans un quatrième chapitre, on expose des idées de construction de 2-solitons avec interaction forte pour l’équation en dimension d=2 et une non-linéarité f(u)=(|u| puissance p-1) u, où 2<p<3.In this thesis, we study different aspects of behaviors in long time of the generalized Zakharov-Kuznetsov equations. The first chapter sums up the state-of-the-art knowledges on those equations. The second chapter is dedicated to polynomial growth of Sobolev norms for the Zakharov-Kuznetsov equation in dimension d=2 and a power of nonlinearity p=2. In the third chapter, we prove existence and uniqueness of multi-solitons associated with different equation of Zakharov-Kuznetsov equations ((d,p)=(2,2),(2,3), et (3,2)). In the last chapter, we introduce some ideas of construction of a 2-solitons with strong interaction for the equation in dimension and a non-linearity f(u)=(|u| puissance p-1) u, with 2<p<3.
Stigmaeus pilatus Kuznetsov
No full text<i>Stigmaeus pilatus</i> Kuznetsov <p> <i>Stigmaeus pilatus</i> Kuznetsov, 1978: 690; Kuznetsov & Petrov, 1984: 109; Khaustov & Kuznetsov, 1997: 83; Kazmierski, 2000: 323; Doġan & Ayyıldız, 2003c: 2; Doġan, 2007: 20; Erman, Özkan, Ayyıldız & Doġan, 2007: 10.</p> <p> <b>Materials examined.</b> 1 Ƥ from litter <i>Quercus</i> sp., 40°21'13'' N, 37°28'06'' E, 600 m, between Reşadiye-Niksar, 25 VIII 2007; 2 ƤƤ from debris, 40°03'53'' N, 38°35'27'' E, 1306 m, Gölova, 22 IX 2007; 3 ƤƤ from moss on tree, 40°27'06'' N, 37° 04' 28'' E, 380 m, Niksar, 14 XII 2007; 7 ƤƤ from litter under <i>Paliurus</i> sp., 40°38'37'' N, 36°37'38'' E, 300 m, between Erbaa-Niksar, 30 III 2008; 3 ƤƤ from moss and litter under <i>Pinus</i> sp., 40°38'37'' N, 36°37'38'' E, 300 m, between Erbaa-Niksar, 30 III 2008; 2 ƤƤ from litter under <i>Lamium galeobdolon</i>, 40°38'37'' N, 36°37'38'' E, 300 m, between Erbaa-Niksar, 30 III 2008; 1 Ƥ from litter under <i>Pinus</i> sp., 40°17'38'' N, 39°34'03'' E, 1919 m, Köse, 29 IV 2008; 1 Ƥ from moss on soil, 40°10'34'' N, 39°06'52'' E, 1371 m, Şiran, 27 VII 2007; 2 ƤƤ from moss on soil, 40°17'44'' N, 37°41'45'' E, 768 m, Koyulhisar, 11.05.2008; 1 Ƥ from litter under <i>Astragalus</i> sp., 40°17'44'' N, 37°41'45'' E, 768 m, Koyulhisar, 11 V 2008; 3 ƤƤ from moss under forest floor, 40°38'34'' N, 36°37'40'' E, 313 m, between Erbaa-Taşova, 11 V 2008; 1 Ƥ from moss and lichen on litter, 40°16'25'' N, 39°35'50'' E, 1845 m, Köse Mountain, 16 XI 2008; 2 ƤƤ from lichen on soil, 40°17'74'' N, 37°41'77'' E, 766 m, Koyulhisar, 17 V 2009; 2 ƤƤ from moss on soil, 40°17'74'' N, 37°41'77'' E, 766 m, Koyulhisar, 17 V 2009; 1 Ƥ from decayed bark of tree, 40°23'69'' N, 37°17'45'' E, 514 m, Reşadiye, 17 V 2009; 3 ƤƤ from lichen on soil, 40°45'11'' N, 36°19'66'' E, 280 m, Taşova, 17 V 2009; ZMAU.</p> <p> <b>Distribution.</b> The Baltic States, Iran and Turkey (Kuznetsov 1978; Kuznetsov & Petrov 1984; Khaustov & Kuznetsov 1997; Kazmierski 2000; Doġan & Ayyıldız 2003c; Doġan 2007; Erman <i>et al</i>. 2007; Rostami <i>et al</i>. 2010a, b).</p> <p> <b>Remarks.</b> This species can be distinguished from related species by the following characters: eyes present, post-ocular bodies large, dorsal shields smooth, median zonal and intercalary shields divided, marginal shields large, suranal shield entire, dorsal body setae unequal in length, median shield with two pairs of setae, <i>h</i> 3 absent, one pair of genital and three pairs of aggenital setae, setal formulas of genua and femora 4(κ)–4(κ)–1–1, 6–4–3–2 respectively. Our specimens exhibit all characters of <i>S. pilatus.</i></p>Published as part of <i>Dönel, Güldem & Doğan, Salih, 2011, The stigmaeid mites (Acari: Stigmaeidae) of Kelkit Valley (Turkey), pp. 1-56 in Zootaxa 2942</i> on pages 49-50, DOI: <a href="http://zenodo.org/record/201260">10.5281/zenodo.201260</a>
Ledermuelleriopsis toleratus Kuznetsov
No full text<i>Ledermuelleriopsis toleratus</i> Kuznetsov <p> <i>Ledermuelleriopsis toleratus</i> Kuznetsov, 1977b: 635; Doġan, 2004b: 142, 2007: 18; Erman, Özkan, Ayyıldız & Doġan, 2007: 8.</p> <p> <b>Materials examined.</b> 1 Ƥ from moss on tree, 40°27'06'' N, 37°04'28'' E, 380 m, Niksar, 14 XII 2007; 1 Ƥ from lichen on soil, 40°39'47'' N, 36°40'32'' E, 324 m, Erbaa, 15 III 2008; 1 Ƥ from litter under <i>Pinus</i> sp., 40°17'38'' N, 39°34'03'' E, 1919 m, Köse, 29 IV 2008; 1 Ƥ from grassy soil, 40°41'33'' N, 36°30'13'' E, 253 m, between Erbaa- Taşova, 27 IV 2008; 1 Ƥ from litter under <i>Astragalus</i> sp., 40°17'44'' N, 37°41'45'' E, 768 m, Koyulhisar, 11 V 2008; 3 ƤƤ from litter under <i>Astragalus</i> sp., 40°18'17'' N, 37°34'55'' E, 1104 m, Reşadiye, 11 V 2008; 1 Ƥ from lichen on soil, 40°25'46'' N, 37°07'47'' E, 479 m, between Erbaa-Taşova, 11 V 2008; 1 Ƥ from bark of <i>Pinus</i> sp., 40°24'16'' N, 37°20'44'' E, 2100 m, Reşadiye, 25 IV 2009; 9 ƤƤ from decayed bark of tree, 40°24'83'' N, 37°20'11'' E, 2482 m, Reşadiye, 25 VI 2009; 2 ƤƤ from litter under <i>Quercus</i> sp., 40°25'62'' N, 37°07'65'' E, 1890 m, between Reşadiye- Niksar, 25 IV 2009; 1 Ƥ from moss on soil, 40°39'90'' N, 36°39'40'' E, 712 m, Taşova, 25 IV 2009; 1 Ƥ from litter under <i>Quercus</i> sp., 40°17'56'' N, 37°41'71'' E, 799 m, Koyulhisar, 17 V 2009; ZMAU.</p> <p> <b>Distribution.</b> Crimea and Turkey (Kuznetsov 1977b; Doġan 2004b, 2007; Erman <i>et al</i>. 2007).</p> <p> <b>Remarks.</b> This species, known from Crimea and Turkey, can be characterized by virtue of the differing forms of the dorsal body setae (Kuznetsov 1977b; Doġan 2004b). Our specimens identified as <i>L. toleratus</i> exhibit all the characters of other known specimens of the species.</p>Published as part of <i>Dönel, Güldem & Doğan, Salih, 2011, The stigmaeid mites (Acari: Stigmaeidae) of Kelkit Valley (Turkey), pp. 1-56 in Zootaxa 2942</i> on pages 32-33, DOI: <a href="http://zenodo.org/record/201260">10.5281/zenodo.201260</a>
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