Elliptic operators on manifolds with singularities and K-homology

It is well known that elliptic operators on a smooth compact manifold are classified by K-homology. We prove that a similar classification is also valid for manifolds with simplest singularities: isolated conical points and fibered boundary. The main ingredients of the proof of these results are: an analog of the Atiyah-Singer difference construction in the noncommutative case and an analog of Poincare isomorphism in K-theory for our singular manifolds. As applications we give a formula in topological terms for the obstruction to Fredholm problems on manifolds with singularities and a formula for K-groups of algebras of pseudodifferential operators.Comment: revised version; 25 pages; section with applications expande

Proposal for photoacoustic ultrasonic generator based on Tamm plasmon structures

The scheme of generation of ultrasound waves based on optically excited Tamm plasmon structures is proposed. It is shown that Tamm plasmon structures can provide total absorption of a laser pulse with arbitrary wavelength in a metallic layer providing the possibility of the use of an infrared semiconductor laser for the excitation of ultrasound waves. Laser pulse absorption, heat transfer and dynamical properties of the structure are modeled, and the optimal design of the structure is found. It is demonstrated that the Tamm plasmon-based photoacoustic generator can emit ultrasound waves in the frequency band up to 100 MHz with pre-defined frequency spectrum. Optical power to sound power conversion efficiency grows linearly with frequency of the laser modulation and excitation power

Description of male of Dasypolia volynkini Ronkay, Ronkay, Gyulai & Pekarsky, 2014 with data on bionomics of the species

Volynkin, Anton V., Egorov, Petr V., Rakhimov, Ruslan D., Titov, Sergey V. (2015): Description of male of Dasypolia volynkini Ronkay, Ronkay, Gyulai & Pekarsky, 2014 with data on bionomics of the species. Zootaxa 3936 (2): 296-300, DOI: http://dx.doi.org/10.11646/zootaxa.3936.2.1

Dasypolia (Dasypolia) volynkini Ronkay, Ronkay, Gyulai & Pekarsky 2014

<i>Dasypolia</i> (<i>Dasypolia</i>) <i>volynkini</i> Ronkay, Ronkay, Gyulai & Pekarsky, 2014 <p>(Figs 2, 6)</p> <p> <i>Dasypolia</i> (<i>Dasypolia</i>) <i>volynkini</i> G. Ronkay, L. Ronkay, Gyulai & Pekarsky, 2014, Fibigeriana Supplement 2: 146, pl. 29, figs 5, 6, gen. fig. 7 (Type locality: " Kazakhstan, Sary-Su river, 200 m, 230 km E Kzyl-Orda").</p> <p> <b>Type material examined</b>: <b>Paratypes</b>: 2 females, SE Kazakhstan, Alma-Ata area, 3 km SE Arkharly Pass, 1070 m, 44º13'36.33'' N, 77º43'53.64'' E, 2–3.x.2010, leg. Taranov B.T. & Egorov P.V., slide AV0963f Volynkin (Coll. A. Volynkin, Barnaul). <b>Additional material examined</b>: 1 male, 12–13.iv.2014, SE Kazakhstan, Almaty area, 10 km E of Kerbulak, Sholak Mts., h= 800 m, 43°55'7.66"N, 77°47'18.45"E, Egorov P.V. & Rakhimov R.D. leg., slide AV 1332m Volynkin (Coll. A. Volynkin, Barnaul); 1 male, 19–20.iv.2014, SE Kazakhstan, Almaty area, Zhetyzhol Mts., 9 km NW of Ulken-Sulutor (old Krasnogorka) village, h= 1250 m, 43°20'32.70"N, 75°06'44.40"E, Egorov P.V. & Rakhimov R.D. leg. (Coll. A. Volynkin, Barnaul).</p> <p> <b>Diagnosis of male</b>. Male wingspan 24–25 mm. The male of <i>D. volynkini</i> (Fig. 2) has the ground colour and the wing pattern same as in the female, but male antennae are serrate and fasciculate. The male genitalia of <i>D. volynkini</i> (Fig. 6) are close to <i>D. minuta</i> (Figs 1, 5) and <i>Dasypolia akkeregeshena</i> Ronkay, Ronkay, Gyulai & Pekarsky, 2014 (Figs 3, 7) but differ from <i>D. minuta</i> by the shorter and broader uncus, the larger dorso-medial process of juxta, the more rounded vinculum, narrower and apically more rounded harpe, and the medially broader vesica; from <i>D. akkeregeshena</i> differ by the somewhat longer dorso-medial process of juxta, the more rounded vinculum, the basally broader valva, the terminally narrower harpe, the differently shaped dorso-medial sclerotized plate of the distal segment of aedagus, and the medially broader vesica. From the third species of the species-complex, <i>Dasypolia zolotuhini</i> Ronkay, Ronkay, Gyulai & Pekarsky, 2014 (Figs 4, 8) differ clearly by the apically broader uncus, the flattened and broader harpe, the reduced costal extension, the differently shaped dorso-medial sclerotized plate of the distal segment of aedagus, and the larger and stronger sclerotised carinal plate.</p> <p> <b>Description of male genitalia</b> (Fig. 6). Uncus moderately long, broad, obtuse apically; tegumen short, penicular lobes moderately broad; vinculum short, U-shape. Juxta shield-like, with two narrow latero-apical and one large dorsomedial processes. Valva elongated, basally broad, distally much narrowed, apically rounded; sacculus broad, setose; costa broad and strongly sclerotised, costal extention broad and very short; clasper moderately broad, curved; harpe moderately broad, curved, apically club-like broadened. Aedeagus elongated, narrow; carinal plate strongly sclerotised, with several thorns; vesica membranous, tubular, curved ventrally, broadened medially.</p> <p> <b>Bionomics and distribution</b>. The species is known from southern Kazakhstan (the type-locality, Sary-Su river valley) and several localities in southeastern Kazakhstan (northeastern part of the Tien Shan mountain massif). As well as other members of the <i>D. minuta</i> species-complex (Ronkay <i>et al.</i> 2014), <i>D. volynkini</i> has overwintering males (the both known males were collected in mid April), which is unusual for the nominate subgenus. In southeastern Kazakhstan all specimens were collected at low altitudes (800–1250 m.). The species inhabits dry low mountains, in Arkharly pass the paratypes were collected in habitat with predominance of <i>Spiraea</i>, <i>Ephedra</i>, <i>Atraphaxis</i> and <i>Prunus</i> shrubs, and various herbs, e. g., <i>Ferula</i> and Poaceae; in Sholak mountains (Fig. 9) the habitat dominated by <i>Salsola</i>, <i>Atraphaxis</i> and <i>Prunus</i> shrubs; in Zhetyzhol mountains (Fig. 10) the habitat dominated by <i>Rosa</i> shrubs and various grasses (Poaceae, etc.).</p>Published as part of <i>Volynkin, Anton V., Egorov, Petr V., Rakhimov, Ruslan D. & Titov, Sergey V., 2015, Description of male of Dasypolia volynkini Ronkay, Ronkay, Gyulai & Pekarsky, 2014 with data on bionomics of the species, pp. 296-300 in Zootaxa 3936 (2)</i> on pages 296-299, DOI: 10.11646/zootaxa.3936.2.10, <a href="http://zenodo.org/record/241001">http://zenodo.org/record/241001</a&gt

Template synthesis and characterization of carbon nanomaterials from ferrocene crystals

Filamentous ribbon-like structures of highly disordered carbon of thickness 10-100 nm built from merged individual carbon nanofibers were synthesised by chemical vapour deposition from saturated ferrocene-benzene solution at 950 K. The materials obtained were characterized by electron microscopy, x-ray and electron diffraction, Raman spectroscopy and a possible growth mechanism for their formation was proposed and discussed. The synthesis demonstrates the possibility of a template growth of carbon nanomaterials and supports the vapour-solid-solid growth model of carbon materials because the catalysing metal particles are solid under the experimental conditions. Due to the large number of structural defects, filamentous structure, submicrometer thickness and low intraparticle diffusion of the nanomaterials, they can find application in catalysis as catalyst supports and sorbents. © 2014 Elsevier B.V

FIGURE 33 in On the taxonomy of the genus Isochlora Staudinger with descriptions of two new species from Mongolia and Qinghai, China (Lepidoptera: Noctuidae: Noctuinae)

FIGURE 33. Distribution map of Isochlora spp. in the Tien Shan Massif and Mongolian Altai.Published as part of <i>Volynkin, Anton V., Titov, Sergey V., Matov, Alexey Yu., Tóth, Balázs, Saldaitis, Aidas, Rakhimov, Ruslan D. & Egorov, Petr V., 2023, On the taxonomy of the genus Isochlora Staudinger with descriptions of two new species from Mongolia and Qinghai, China (Lepidoptera: Noctuidae: Noctuinae), pp. 409-423 in Zootaxa 5374 (3)</i> on page 421, DOI: 10.11646/zootaxa.5374.3.5, <a href="http://zenodo.org/record/10152641">http://zenodo.org/record/10152641</a&gt

FIGURES 24–27 in On the taxonomy of the genus Isochlora Staudinger with descriptions of two new species from Mongolia and Qinghai, China (Lepidoptera: Noctuidae: Noctuinae)

FIGURES 24–27. Isochlora spp.: male genitalia. Depositories of the specimens dissected: 24, 26 and 27 in ZISP; 25 in MfN.Published as part of <i>Volynkin, Anton V., Titov, Sergey V., Matov, Alexey Yu., Tóth, Balázs, Saldaitis, Aidas, Rakhimov, Ruslan D. & Egorov, Petr V., 2023, On the taxonomy of the genus Isochlora Staudinger with descriptions of two new species from Mongolia and Qinghai, China (Lepidoptera: Noctuidae: Noctuinae), pp. 409-423 in Zootaxa 5374 (3)</i> on page 419, DOI: 10.11646/zootaxa.5374.3.5, <a href="http://zenodo.org/record/10152641">http://zenodo.org/record/10152641</a&gt

Isochlora arctomys Alpheraky 1897

<i>Isochlora arctomys</i> Alphéraky, 1897 <p>(Figs 9–12, 24, 25, 29)</p> <p> <i>Isochlora arctomys</i> Alphéraky, 1897, <i>in</i> Romanoff, <i>Mémoires sur les lépidoptères</i>, 9: 43, pl. 2, figs. 11–12 (Type locality: [China, Xinjiang, E of Urumchi, Bogda Shan Mts] “ Bogdo-Ola (Thian-chan septentrional-oriental)”)</p> <p> = <i>Chamyla idia</i> Staudinger, 1900, <i>Deutsche entomologische Zeitschrift Iris</i>, 12(2): 343, pl. 7, fig. 9 (Type locality (hereby fixed by lectotype designation): [China, Xinjiang, eastern Thien Shan Mts, Barkultag Ridge near Hami] “östlichsten Ausläufern des gewaltigen Thian Schan-Gebirges... Stadt Chamyl ”), <b>syn. rev.</b></p> <p> <b>Type material examined</b>. <b>Lectotype</b> of <i>Isochlora arctomys</i> (hereby designated) (Figs 9, 24): male, “Bogdo | Ala.” (upper side) | “ Gr. Gr. ” [Grum-Grshimailo] (under side) / “Idia Stgr. ” / “64.” / “ Coll. Gr. [and] Dk.[Duke] | Nikolay | Mikhailovich” (in Russian) / “Slide | AV7367³ | A. Volynkin ” (ZISP); <b>paralectotypes</b>: 1 female, “Bogdo | Ala.” (upper side) | “ Gr. Gr. ” [Grum-Grshimailo] (under side) / “Idia Stgr. | Iris XII” / “64.” / “ Coll. Gr. [and] Dk.[Duke] | Nikolay | Mikhailovich” (in Russian) / “Slide | AV7369 ♀ | A. Volynkin ” (ZISP); 1 female, green label “Bogdo | Ala.” (upper side) | “ Gr. Gr. ” [Grum-Grshimailo] (under side) / “ Coll. Gr. [and] Dk.[Duke] | Nikolay | Mikhailovich” (in Russian) / “Slide | AV7368 ♀ | A. Volynkin ” (ZISP); 1 female, green label “Bogdo | Ala.” (upper side) | “ Gr. Gr. ” [Grum-Grshimailo] (under side) / “ Coll. Gr. [and] Dk.[Duke] | Nikolay | Mikhailovich” (in Russian) (ZISP).</p> <p> <b>Lectotype</b> of <i>Chamyla idia</i> (hereby designated) (Figs 12, 25): male, brown label “Thian or. | [18]96 Hbhr. [Haberhauer]” / pink label “Origin.” / “ Chamyla | Stgr. | Arctomys Alph. | Idia | Stgr.” / “Préparation | Bo M.B. 155 | Ch. Boursin ” (MfN); <b>paralectotypes</b>: 1 female, brown round label / pink label “Origin.” (MfN); 1 female, brown round label / pink label “Origin.” / “abgeb.[ildet]” [=illustrated] (MfN).</p> <p> <b>Remarks</b>. <b>(1)</b> <i>Isochlora arctomys</i> was described from one male and three females (Alphéraky 1897). In order to stabilise the nomenclature, the male syntype deposited in ZISP is hereby designated as the lectotype. <b>(2)</b> <i>Chamyla idia</i> was described based on one male and two females from eastern Tien Shan and a female from Korla. In order to stabilise the nomenclature, the male syntype with the label “Thian or.” deposited in MfN is hereby designated as the lectotype, and its place of origin, following the Article 76.2 of ICZN (1999), becomes the type locality of the taxon. <b>(3)</b> Poole (1989) listed <i>idia</i> as a junior synonym of <i>arctomys</i>. However, in their check-lists of the genus <i>Isochlora</i>, Hreblay <i>et al.</i> (1998) and Gyulai & Ronkay (2006) placed <i>idia</i> in the synonymy with <i>arctomys</i> with a question mark. Both the taxa are described from the same easternmost region of the Tien Shan Mountain Massif, and their lectotypes display no remarkable morphological differences from each other therefore the synonymic status of <i>idia</i> is revised in the present paper.</p> <p> <b>Diagnosis</b>. The forewing length is 14.0–15.0 mm in both sexes. The species (Figs 9–12) is clearly different from most congeners due to its greyish-brown forewing colouration with a diffuse pattern, and is most superficially reminiscent of species of the <i>I. glaciale</i> (Boursin, 1940) lineage (illustrated by Babics <i>et al.</i> (2008) and Volynkin & Titov (2020)), from which <i>I. arctomys</i> differs in the narrower forewing and the indistinct or dentate transverse lines on the forewing. In the male genitalia, <i>I. arctomys</i> can be easily distinguished from the <i>I. glaciale</i> lineage by the lack of the harpe and the cornuti in the phallus vesica. Despite the external dissimilarity, the male genitalia of <i>I. arctomys</i> (Figs 24, 25) are very similar to <i>I. intricans</i> (Fig. 23) and <i>I. hreblayi</i> <b>sp. n.</b> (Fig. 22), from which the current species differs only in the shorter uncus and the narrower valva. Additionally, compared to <i>I. intricans</i>, <i>I. arctomys</i> lacks the harpe and the proximal cornuti in the phallus vesica. The female genitalia of <i>I. arctomys</i> (Fig. 29) are distinguished from <i>I. intricans</i> (Fig. 28) by the considerably longer and funnel-shaped antrum (it is shallow bowl-shaped in the congener), the shorter membranous section of the ductus bursae, and the corpus bursae lacking the signa.</p> <p> <b>Distribution</b>. Northwestern Xinjiang Uygur Autonomous Region, China (Fig. 33).</p>Published as part of <i>Volynkin, Anton V., Titov, Sergey V., Matov, Alexey Yu., Tóth, Balázs, Saldaitis, Aidas, Rakhimov, Ruslan D. & Egorov, Petr V., 2023, On the taxonomy of the genus Isochlora Staudinger with descriptions of two new species from Mongolia and Qinghai, China (Lepidoptera: Noctuidae: Noctuinae), pp. 409-423 in Zootaxa 5374 (3)</i> on pages 414-415, DOI: 10.11646/zootaxa.5374.3.5, <a href="http://zenodo.org/record/10152641">http://zenodo.org/record/10152641</a&gt

Isochlora Staudinger 1882

Genus <i>Isochlora</i> Staudinger, 1882 <p> <i>Isochlora</i> Staudinger, 1882, <i>Stettiner entomologische Zeitung</i>, 43: 39</p> <p> (Type species: <i>Isochlora viridis</i> Staudinger, 1882, by monotypy).</p> <p> = <i>Grumia</i> Alphéraky, 1892, <i>Horae Societatis entomologicae vossicae, variis semonibus in Russia usitatis editae</i>, 26 (3–4): 453</p> <p> (Type species: <i>Grumia flora</i> Alphéraky, 1892, by monotypy), <b>syn. rev.</b></p> <p> = <i>Chamyla</i> Staudinger, 1900, <i>Deutsche entomologische Zeitschrift Iris</i>, 12(2): 343</p> <p> (Type species: <i>Chamyla idia</i> Staudinger, 1900, by monotypy), <b>syn. rev.</b></p> <p> <b>Notes</b>. <b>(1)</b> The type species of <i>Chamyla</i> (Figs 9–12, 24, 25, 29) and <i>Grumia</i> (Figs 15–17, 27, 32) display no significant morphological differences from the typical <i>Isochlora</i> (Figs 1, 2, 20, 21, 30) and therefore cannot be considered as subgenera of the latter. For this reason, we follow the wide concept of the genus suggested by Lafontaine (1998) and consider <i>Grumia</i> and <i>Chamyla</i> as junior synonyms of <i>Isochlora</i>. <b>(2)</b> The genus was characterised in detail by Lafontaine (1998).</p>Published as part of <i>Volynkin, Anton V., Titov, Sergey V., Matov, Alexey Yu., Tóth, Balázs, Saldaitis, Aidas, Rakhimov, Ruslan D. & Egorov, Petr V., 2023, On the taxonomy of the genus Isochlora Staudinger with descriptions of two new species from Mongolia and Qinghai, China (Lepidoptera: Noctuidae: Noctuinae), pp. 409-423 in Zootaxa 5374 (3)</i> on page 411, DOI: 10.11646/zootaxa.5374.3.5, <a href="http://zenodo.org/record/10152641">http://zenodo.org/record/10152641</a&gt