1,358,707 research outputs found
Tranzscheliella helutae K. G. Savchenko 2023, sp. nov.
No full text<i>Tranzscheliella helutae</i> K.G. Savchenko <i>sp. nov.</i> <p>MycoBank: 846947</p> <p>Etymology: After a Ukrainian mycologist Dr. Vasyl P. Heluta.</p> <p>Sori in the culms and surrounding the upper internodes and axes of abortive inflorescences, initially covered by the leaf sheath, later exposed. Peridium absent. Spore mass semi-agglutinated to powdery, dark brown. Spores globose to subglobose, 4.5–5.5 × 5–6.5 μm, dark olive-brown. Spores rarely with polar cups, medium brown, without appendages; spore wall c. 0.5–1 μm, smooth. In SEM unevenly, moderately verruculose.</p> <p> Typification: UKRAINE. Kherson Oblast: Hola Prystan District, Chernomorsky Biosphere Reserve, 46°45′15′′ N, 32°12′74′′ E, 7 m. asl, On <i>Agropyron cristatum,</i> 07 June 2009, K. G. Savchenko, BUT-F 304 (holotype).</p> <p> Other specimens examined: UKRAINE. Kherson Oblast: Hola Prystan District, Chernomorsky Biosphere Reserve, 46°31′35′′ N, 31°94′22′′ E, 1 m. asl, on <i>Agropyron cristatum</i>, 09 June 2009, K. G. Savchenko, BUT-F 305 (paratype).</p> <p> Note— <i>Tranzscheliella helutae</i> is a part of <i>T. hypodytes</i> species complex. <i>Tranzscheliella helutae</i> is the only species from this genus occurring on <i>Agropyron</i> (subfamily Pooideae, tribe Triticeae). <i>Agropyron</i> contains about seven species found in temperate, mostly arid regions of Eurasia (Dewey 1986). Several species of <i>Agropyron</i> were listed as hosts of <i>T. hypodytes</i> s.l. by Vánky (2012). <i>Tranzscheliella helutae</i> has slightly larger and darker spores than <i>T. hypodytes</i> s.str. (4–4.5 × 4.5–5.5 μm). The spores of <i>T. helutae</i> are unevenly, and moderately verruculose in SEM, which differ from the densely, minutely, uniformly verruculose spores of <i>T. hypodytes</i> s.str. In the phylogenetic analysis, specimens of <i>T. helutae</i> were resolved in a well-supported monophyletic clade (Fig. 1). In a concatenated alignment there are 25 base pair differences between <i>T. helutae</i> and the most closely related species, <i>T. yupeitaniae.</i></p>Published as part of <i>Savchenko, Kyryll & Mahmood, Huda, 2023, Tranzscheliella helutae sp. nov. on Agropyron cristatum from Ukraine, pp. 151-156 in Phytotaxa 592 (2)</i> on pages 154-155, DOI: 10.11646/phytotaxa.592.2.9, <a href="http://zenodo.org/record/7840526">http://zenodo.org/record/7840526</a>
Monoetherification of tert-butylated pyrocatechols upon irradiation of their solutions in hydrocarbons
No full textProducts of reactions of tert-butylated pyrocatechols with alkyl radicals were studied. The major products formed upon gamma-irradiation of deaerated solutions of 4-tert-butyl- and 3,5-di-tert-butylpyrocatechol in hexane and cyclohexane are monoalkyl ethers, which were identified by NMR spectroscopy ((1)H, (13)C, (1)H-(1)H NOESY technique) and gas chromatography-mass spectrometry
Androlaelaps montensis Lareschi & Savchenko 2021, sp. nov.
No full textAndrolaelaps montensis sp. nov. Androlaelaps montensis Lareschi, 2020: 100500, Figs. 3–5 (unavailable name). Androlaelaps montensis was described on the basis of the female and male. It may be recognised by the proximal seta on coxa I almost twice as long as distal seta on coxa I in female and male; both sexes with the distance j5–j5 similar to the distance j6–j6 and to half the distance z5–z5; females with st3 1.5 times longer than st1. See Lareschi et al. (2020) for the complete description. Type material. HOLOTYPE: female (CG529-1), ex Akodon montensis (CG529), Parque Provincial Urugua-í, Misiones Province, Argentina (25°51´10.29″S, 54°10´41.53″W). PARATYPES: male (CG568-1) ex Akodon montensis (CG568), Parque Provincial Urugua-í, Misiones Province, Argentina (25°51´10.29″S, 54°10´41.53″W); 9 females ex A. montensis (CG529-2 /10), Parque Provincial Urugua-í, Misiones Province, Argentina (25°51´10.29″S, 54°10´41.53″W); 2 males ex A. montensis (CG568-1 /2), Parque Provincial Urugua-í, Misiones Province, Argentina (25°51´10.29″S, 54°10´41.53″W). Etymology. The name of this species refers to its occurrence on the rodent A. montensis. Type host. Akodon montensis Thomas (Cricetidae: Sigmodontinae) (CG 568, field number). Type locality. Parque Provincial Urugua-í, Misiones Province, Argentina (25°51´10.29″S, 54°10´41.53″W).Published as part of Lareschi, Marcela & Savchenko, Ekaterina, 2021, Validation of the names of four species of laelapid mites (Mesostigmata: Laelapidae) parasitic on sigmodontine rodents (Rodentia: Cricetidae), pp. 298-300 in Zootaxa 5072 (3) on page 299, DOI: 10.11646/zootaxa.5072.3.7, http://zenodo.org/record/574476
On generalized spaces of persistence diagrams
No full textSavchenko A. On generalized spaces of persistence diagrams / A. Savchenko // Algebraic and geometric methods of analysis – 2019 : book of abstr. the Intern. sci. conf., Odessa, 28 May – 03 June 2019 / [Odesa Nat. Acad. of Food Technologies et al.]; аdministrative comm.: B. Egorov (chairman). – Odessa, 2019. – P. 52. – Ref.: 5 tit
ChemInform Abstract: Preparation of α-Methyl-Substituted Dialkyl Ketones by Alkaline Opening of 1,2-Dialkyl-Substituted Cyclopropanols.
No full textFuzzy ultrametrization of spaces of non-additive measures on fuzzy ultrametric spaces
No full textSavchenko A. Fuzzy ultrametrization of spaces of non-additive measures on fuzzy ultrametric spaces / A. Savchenko // Algebraic and Geometric Methods of Analysis : book of abstr. the Intern. online sci. conf., Odessa, 25-28 May 2021 / [Odesa Nat. Acad. of Food Technologies et al.] ; аdministrative comm.: B. Egorov (chairman). – Odessa, 2021. – P. 130. – Ref.: 5 tit
IVAN VASILIEVICH SAVCHENKO IS 70
No full textOctober 8, 2012 is the 70th anniversary of the vice-president, academician, PhD of RAAS Ivan Savchenko. Throughout his life I.V. Savchenko devoted himself to science. During his professional background he has been a student at Moscow State University, a graduate student, senior researcher, Head of the laboratory of geobotany of Feed Institute and a vice president of RAAS
Androlaelaps cursor Lareschi & Savchenko 2021, sp. nov.
No full textAndrolaelaps cursor sp. nov. Androlaelaps cursor Lareschi, 2020: 100500, Figs 6-7, (not available name). Androlaelaps cursor was described on the basis of the female, male and deutonymph. It may be recognised by the proximal seta on coxa I more than twice as long as the distal seta on coxa I in females, males and deutonymphs; males and females with the distance j5–j5 and half z5–z5 less the distance between j6 setae; and females with st3 less than 1.5 times length of st1. S ee Lareschi (2020) for the full description. Type material. HOLOTYPE: female (MZUFV 2971-1), ex Akodon cursor (Winge) (MZUFV 2971), Mata do Paraíso Research Station, Viçosa, Minas Gerais, Brazil (20°46´S, 42°51´W). PARATYPES: male (MZUFV 3950-1) ex Akodon cursor (MZUFV 3950, Mata do Paraíso Research Station, Viçosa, Minas Gerais, Brazil (20°46´S, 42°51´W); 9 females (MZUFV 2971-2; MZUFV 2971-31 /32; MZUFV 3949-31; PMP 472-1 /2; PMP 472-31 /33) and 1 deutonymph (PMP456- 1) ex Akodon cursor, Mata do Paraíso Research Station, Viçosa, Minas Gerais, Brazil (20°46´S, 42°51´W). Etymology. The name of this species refers to its occurrence on rodent A. cursor. Type host. Akodon cursor (Winge) (Cricetidae: Sigmodontinae) (MZUFV 2971, housed at the Museu de Zoologia, Universidade Federal de Viçosa, Minas Gerais, Brazil). Type locality. Mata do Paraíso Research Station, Viçosa, Minas Gerais, Brazil (20°46´S, 42°51´W).Published as part of Lareschi, Marcela & Savchenko, Ekaterina, 2021, Validation of the names of four species of laelapid mites (Mesostigmata: Laelapidae) parasitic on sigmodontine rodents (Rodentia: Cricetidae), pp. 298-300 in Zootaxa 5072 (3) on page 299, DOI: 10.11646/zootaxa.5072.3.7, http://zenodo.org/record/574476
Androlaelaps azarae Lareschi & Savchenko 2021, sp. nov.
No full textAndrolaelaps azarae sp. nov. Androlaelaps azarae Lareschi, 2020: 100500, Figs 1–2, (unavailable name). Androlaelaps azarae was described on the basis of the female, male and deutonymph. It may be recognised by the proximal seta on coxa I more than twice as long as the distal seta on coxa I in females, males and deutonymphs; adults with the distance j5–j5 similar to the distance j6–j6 and to half the distance z5–z5; and females with st3 less than 1.5 times length of st1. See Lareschi, 2020 for the full description. Type material. HOLOTYPE: female (LTU 814-2) ex Akodon azarae, Estación Álzaga, Buenos Aires Province, Argentina (37º51´35.5”S, 59º58´20.5”W). PARATYPES: male (LTU 814-6) ex Akodon azarae, Estación Álzaga, Buenos Aires Province, Argentina (37º51´35.5”S, 59º58´20.5”W); 7 females ex A. azarae (LTU 813-1/2; LTU 814-1/3-4; LTU 815-1/2), Estación Álzaga, Buenos Aires Province, Argentina (37º51´35.5”S, 59º58´20.5”W); 2 females (PPA 647-1/2), ex A. azarae, Paso de Los Algarrobos, La Pampa Province, Argentina (36°40′59″S, 66°54′00″W); 8 males ex A. azarae (LTU 768-1 and LTU 762-1), Arroyo de las Brusquitas y Ruta Provincial 11, Buenos Aires Province, Argentina (38º 13.59´4”S, 57º 46´44.4”W); 1 male ex A. azarae (LTU 816-1), Estación Álzaga, Buenos Aires Province, Argentina (37º 51´35.5”S, 59º 58´20.5”W); 1 male ex A. azarae (PPA 647-1) Paso de Los Algarrobos, La Pampa Province, Argentina (36°40′59″S y 66°54′00″W); 3 males ex A. azarae (CG 669-1 and CG 658-1/2), Calle 143 y Diagonal 630, Arana, Buenos Aires Province, Argentina (35°0′25.28″S, 57°54′33.56″W); 1 deutonymphs ex A. azarae (LTU 812-1), Estación Álzaga, Buenos Aires Province, Argentina (37º51´35.5”S, 59º58´20.5”W); 1 deutonymphs ex A. azarae (CG 674-1), Calle 143 y Diagonal 630 Arana, Buenos Aires Province, Argentina (35°0′25.28″S, 57°54′33.56″W). Etymology. The name of this species refers to its occurrence on rodent of A. azarae. Type host. Akodon azarae Fischer (Cricetidae: Sigmodontinae) (LTU 814, field number). Type locality. Estación Álzaga, Buenos Aires Province, Argentina (37º51´35.5”S, 59º58´20.5”W).Published as part of Lareschi, Marcela & Savchenko, Ekaterina, 2021, Validation of the names of four species of laelapid mites (Mesostigmata: Laelapidae) parasitic on sigmodontine rodents (Rodentia: Cricetidae), pp. 298-300 in Zootaxa 5072 (3) on pages 298-299, DOI: 10.11646/zootaxa.5072.3.7, http://zenodo.org/record/574476
Functors and fuzzy metric spaces
No full textSavchenko A. Functors and fuzzy metric spaces / A. Savchenko, M. Zarichnyi // Algebraic and geometric methods of analysis – 2020 : book of abstr. the Intern. sci. conf., Odessa, 26–30 May 2020 / [Odesa Nat. Acad. of Food Technologies et al.]; аdministrative comm.: B. Egorov (chairman) et al. – Odessa, 2020. – P. 77–78. – Ref.: 12 tit
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