269,490 research outputs found
Refusenik Video Archive—Eduard Kuznetsov
No full textThe original VHS was titled "Refusenik Video Archive—Volume 10—Eduard Kuznetsov."Digital recordingDigital finding aid
Cryptographically properties of random S-boxes
No full textThe results of studies of the properties of random permutations carried out with the participation of the authors are generalized. It is shown that random substitutions overwhelmingly have good cryptographic, and in particular, algebraic properties. The prospects of using random S-blocks to build block symmetric ciphers with improved dynamic rates of arrival to random substitution are substantiated. A refined model of random substitution and the corresponding criteria are proposed, with the help of which one can verify the suitability of substitutions generated randomly for use in modern cipher designs. It is a check, since with a very high probability the checked substitutions will be suitable
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>
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 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>
Global well-posedness for the Cauchy problem of the Zakharov-Kuznetsov equation on cylindrical spaces
No full textWe prove that the Zakharov-Kuznetsov equation on cylindrical spaces is
globally well-posed below the energy norm. As is known, local well-posedness
below energy space was obtained by the first author. We adapt I-method to
extend the solutions globally in time. Using modified energies, we obtain the
polynomial bounds on the growth for the global solutions.Comment: 24 page
Hiding data in the structure of the FAT family file system
No full textThe paper researched the methods of technical steganography, namely, based on the hiding of information messages in the structure of the FAT family file system. The basic method based on changing the numbering of cover files clusters is considered, its advantages and disadvantages are researched. An improved method is proposed that allows to significantly increase size of hidden data. The results of the comparative analysis of hiding data in the structure of the FAT family file system are given
On the unique continuation property for Kadomtsev-Petviashvili-I and Benjamin-Ono-Zakharov-Kuznetsov equations
No full textConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)We prove unique continuation results for the Kadomtsev-Petviashvili-I and Benjamin-Ono-Zakharov-Kuznetsov equations. Our method of proof goes back to the complex variable techniques introduced by Bourgain. The approach is quite similar to that used by Panthee for the Kadomtsev-Petviashvili-II and Zakharov-Kuznetsov equations.We prove unique continuation results for the Kadomtsev-Petviashvili-I and Benjamin-Ono-Zakharov-Kuznetsov equations. Our method of proof goes back to the complex variable techniques introduced by Bourgain. The approach is quite similar to that used by Pan43611301140FAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)SEM INFORMAÇÃOSEM INFORMAÇÃ
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>
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
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