1,730,360 research outputs found

    Lack of reproducibility of molecular phylogenetic analysis of Cyclopoida

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    Supplementary material for: Mikhailov, K.V., Ivanenko, V.N. (2019). https://doi.org/10.​1016/​j.​ympev.​2019.​106574 Funding: The reanalysis of the dataset was conducted with support of the Russian Foundation for Basic Research (grants #18-04-01192)

    Genomic analysis reveals cryptic diversity in aphelids and sheds light on the emergence of Fungi. Mikhailov et al.

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    Datasets and analysis files for phylogenomic reconstructions, divergence dating, and selected gene family phylogenies, featured in the genomic study of aphelid species Amoeboaphelidium protococcarum and Amoeboaphelidium occidentale

    Mikhailov Stability Criterion for Time-delayed Systems

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    The valid and invalid application of the Mikhailov criterion to linear, time-invariant systems with time delays is discussed. The Mikhailov criterion is a graphical procedure which was developed to examine the stability of linear, time-invariant systems with no time delays. Two equivalent formulations of the criterion are discussed. Results indicate that the first formulation remains valid for time-delayed systems of the retared type, with the understanding that the Mikhailov curve need not necessarily always rotate in the counterclockwise direction for a stable system. Erroneous results in the second formulation are formed when there are time delays in the systems

    Improvement of marketing communication policy FOP " Mikhailov OG"

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    Доступ до роботи тільки на території бібліотеки ОНЕУ, для переходу натисніть на посилання нижчеУ роботі охарактеризовано маркетингову комунікативну політику як елемент комплексу маркетингу, надано характеристику основних етапів розробки комунікаційної політики, визначено методичні підходи до оцінювання ефективності маркетингової політики комунікацій . Надано техніко-економічну характеристику діяльності ФОП Михайлов О.Г.; проаналізовано маркетингове середовище ФОП Михайлов О.Г; надано характеристику місця комунікативної політики в комплексі маркетингу ФОП Михайлов О.Г.. Запропоновано рекомендації щодо удосконалення комунікативної політики ФОП Михайлов О.Г. у віртуальному середовищі; розроблено пропозиції з удосконалення оф-лайн комунікацій ФОП Михайлов О.Г.The paper characterizes the marketing communication policy as an element of the marketing complex, describes the main stages of communication policy development, identifies methodological approaches to assessing the effectiveness of marketing communications policy. The author provides technical and economic characteristics of FOP Mikhailov OG; the marketing environment of FOP Mikhailov OG is analyzed; the characteristic of a place of communicative policy in a complex of marketing of FOP Mikhailov OG is given. The paper offers recommendations for improving the communication policy of FOP Mikhailov OG in a virtual environment; developed proposals for improving offline communications FOP Mikhailov O

    Nikolaj Mihajlov (Nikolai Mikhailov)

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    V torek, 25. maja 2010, je v Vidmu (Udine) na pragu svojega 43. rojstnega dne – rojen je bil 11. junija 1967 v Moskvi – nepričakovano sklenil svojo življenjsko pot baltist in slavist Nikolaj Mihajlov (Nikolai Mikhailov)

    Superstrutures above the Periodic Law (About the article of O.V. Mikhailov)

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    The author expresses critical remarks regarding the article by O.V. Mikhailov on teaching the topic “Mendeleev’s Periodic law” by at the national research University. Some specific errors of O.V. Mikhailov relating to historical-scientific and quantum-chemical issues are indicated. The article also presents a general critical assessment of his approach to teaching

    Nikolaj Mikhailov: from unpublished and unfinished works

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    Reikšminiai žodžiai: Mitologija; Mokslo darbai; Nebaigti; Nepublikuoti; Nikolajus Michailovas; Slavai; Slavų mitologija; Įvadas; Šaltiniai; Introduction; Mythology; Nd; Nikolaj Mikhailov; Nikolajus Michailovas; Nikolj Mikhailov; Sciences works; Slavic mythology; Slavs; Sources; Unfinished; Unpublishe

    Balto Slavic mythological studies of Nikolai Mikhailov

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    Gerai žinoma Lietuvoje rusų mokslininkė Marija Zavjalova, buvusi profesoriaus N. Michailovo mokinė ir draugė, prisimena stebinantį profesoriaus gebėjimą greitai išmokti užsienio kalbas ir jų tarmes. Jis skaitė paskaitas ir rašė straipsnius bei knygas italų, vokiečių, slovėnų kalbomis. Be to, straipsnyje apžvelgiami prof. N. Michailovo mokslinių tyrimų klausimai. Reikšminiai žodžiai: Baltai; Baltų mitologija; Mitologija; Mitologijos tyrimai; Nikolajus Michailovas; Publikacijos; Rekonstrukcija; Slavai; Slavų mitologija; Baltic mythology; Balts; Mithology research; Mythology; Nikolai Mikhailov; Nikolaj Michailov; Nikolaj Mikhailov; Publications; Reconstruction; Slavic mythology; SlavsRussian scientist Marija Zavjalova who is well-known in Lithuania, the former pupil of the Lithuanian language and a friend of Professor N. Mikhailov, recalls the amazing ability of the Professor as a polyglot to learn foreign languages and some of their dialects quickly. He wrote his articles and books in the Italian, German, Slovenian languages; he delivered lectures in all these languages. Moreover, the problems of scientific research carried out by N. Mikhailov are reviewed in the article

    Chrysolina (Hypericia) changbaishana Mikhailov 2024, sp. n.

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    <i>Chrysolina</i> (<i>Hypericia</i>) <i>changbaishana</i> Mikhailov, sp. n. <p>https://zoobank.org/NomenclaturalActs/ E87DC5FA-8AC1-4F69-8BF8-2E20A6F24021</p> <p>Figs 6, 10</p> <p> TYPE MATERIAL. Holotype: ♂, with labels: <b>China</b>: Jilin Prov., / S of Erdaobaihe / Town 800 m, / 42,40º N, 128,106º E / 17.07.2012 / R. Dudko leg. [p] | HOLOTYPUS / <i>Chrysolina</i> (<i>Hypericia</i>) / <i>changbaishana</i> sp. n. / Yu. Mikhailov design. 2022 [p, r] (ISEA).</p> <p>DESCRIPTION. Male (holotype) (Fig. 6). Moderately convex, ovate. Body length – 6.2 mm, width – 4.0 mm. Dorsum shining, smooth, bicolor, elytra bronze, pronotum and head blackish violet; underside and legs black, with feeble greenish reflex. Antennae, maxillary palpi and tarsi dark brown.</p> <p>Head: frontoclypeus finely and sparsely punctured with smooth median stripe; frontal and epicranial sutures slightly deepened. Last maxillary palpomere axe-shaped, apically truncated, 1.2x longer then broad, 1.4 x longer and 1.2x wider than previous palpomere. Relative length of antennomeres 1–3 as ratios 7, 4, 6. Tenth antennomere 2x longer than broad, eleventh antennomere – 3.1x. Orbital lines short and narrow, far not reach antennal insertion. Antenna inserted 1.2x closer to eye than to clypeus.</p> <p>Thorax: pronotum transverse, twice broader than long, broadest behind middle; slightly rounded laterally, almost straight basally and apically; pronotal disc evenly convex, covered with dense fine punctures; width between anterior angles 1.5x less than basal width. Anterior angles moderately produced, rounded triangular; basal angles obtuse; anterior side margined and ciliate, widely incised in bracket-shape; basal edge arcuately convex. Lateral sides steeply swollen along entire length, lateral callus narrow, separated from disc by deep groove with vertical outer border in basal 2/5 and by broad almost obsolete impression with large punctures in anterior part. Prothoracic hypomera with longitudinal furrow, outer side slightly convex and smooth, basal 1/4 covered with coarse wrinkles; basal fold short and moderately deep; prosternal process narrow, slightly convex longitudinally; anterolateral portion of prosternum with convex bulge medially; prosternum 1.3x shorter than metasternum; metasternum of the same length as first ventrite, smooth.</p> <p>Elytra with weak humeral callus, each elytron 2.1 times longer than wide, elytral length 4.7 mm. Large primary punctures form scutellar row of 8 punctures and 9 regular paired rows. Punctures in rows sparsely placed. 5th puncture row consists of 24–26 punctures. Secondary punctures fine and sparse (same as on pronotum) on wider intervals and very fine on narrow intervals between paired rows. Marginal stria with large sparse impressed punctures. Sutural stria distinct at apical slope. Epipleura inclined outside, visible along entire length. Hind wings developed.</p> <p>Tarsi narrow, fore tarsi (tarsomeres 1–3) 2.6x as long as broad; ratio of width of fore tarsomeres 1–3 as 1.5, 1.3, 2.0. All tarsomeres with entire sole beneath.</p> <p>Abdomen: pygidium with impression in basal 2/3. Ventrite 1 broadly margined on anterior edge, covered with very sparse fine punctures, only anterior intercoxal process covered with medium-sized punctures. Last ventrite evenly convex, with slightly incised apex, smooth, covered with very sparse fine punctures. Aedeagus (Fig. 10).</p> <p> DIFFERENTIAL DIAGNOSIS. From <i>Ch. difficilis</i> (Fig. 7) also found in Jilin Province is readily distinguished by smaller size, narrow scutellum, longer and narrower distinctly rounded apical projection of aedeagus (Fig. 10) and narrow, very steeply swollen lateral calli of pronotum. In <i>Ch. difficilis</i> pronotal lateral calli are broader and flatter. Body size of the new species is closer to <i>Ch. nikkoensis</i>, presented below, which has different combination of dorsal punctation (larger elytral and smaller pronotal one) and broad apical projection of eadeagus (Figs 11, 12).</p> <p>ETYMOLOGY. The name is derived from the Changbai Mountains (Changbaishan), in the foothills of which the type locality is situated.</p> <p> REMARKS. In Japan two <i>Hypericia</i> species are known (Saitoh, 2012), namely <i>Ch. difficilis</i> and <i>Ch. nikkoensis</i> (Jacoby, 1885). The latter is described and known mainly from Honshu with only few records from Hokkaido (Hirano, 2003; Araki <i>et al</i>., 2013). No <i>Hypericia</i> species have been recorded from the Kurile Islands so far. But as a part of long term entomological survey in South Kurile Islands organized by Dr. Kirill Makarov (MPSU) in the year 2012 a series of relatively small beetles (Figs 13, 14) from the genus <i>Chrysolina</i> was collected by Dr. Yuri Sundukov in Shikotan Island. After careful examination these beetles proved to be <i>Ch. nikkoensis</i>.</p> <p> Although the place of housing of Jacoby’s collection is well known, the types of <i>Ch. nikkoensis</i> have not been controlled so far (Kimoto & Takizawa, 1994; Saitoh, 2012; Bienkowski, 2019). Thanks to Dr. Michael Geiser (NHMUK) I got the opportunity to study the types (Figs. 15, 16) and therefore can exactly prove the identity of the beetles from Shikotan. This is the first record not only for Kurile Islands but for the fauna of Russia as well.</p>Published as part of <i>Mikhailov, Yu. E., 2024, REVIEW OF LEAF BEETLES OF THE SUBGENUS HYPERICIA BEDEL, 1899 (COLEOPTERA: CHRYSOMELIDAE: CHRYSOLINA) FROM EAST ASIA, pp. 1-18 in Far Eastern Entomologist 499</i> on pages 9-10, DOI: 10.25221/fee.499.1, <a href="http://zenodo.org/record/10928368">http://zenodo.org/record/10928368</a&gt
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