134,830 research outputs found
Updated Version of Table 1 from Morozov (2024)
No full textThis is an updated version of Table 1 from: Morozov, S. S. (2024). Non-dinosaurian predation and scavenging on dinosaurs: a list of direct evidence. paleoRxiv. https://doi.org/10.31233/osf.io/bew86. The link: https://docs.google.com/spreadsheets/d/1uNDmaVBBLOAeuaoKPko0Uu90UmQdbN5APROo7307AKc
Extrusion without a motor:a new take on the loop extrusion model of genome organization
No full textChromatin loop extrusion is a popular model for the formation of CTCF loops and topological domains. Recent HiC data have revealed a strong bias in favour of a particular arrangement of the CTCF binding motifs that stabilize loops, and extrusion is the only model to date which can explain this. However, the model requires a motor to generate the loops, and although cohesin is a strong candidate for the extruding factor, a suitable motor protein (or a motor activity in cohesin itself) has yet to be found. Here we explore a new hypothesis: that there is no motor, and thermal motion within the nucleus drives extrusion. Using theoretical modelling and computer simulations we ask whether such diffusive extrusion could feasibly generate loops. Our simulations uncover an interesting ratchet effect (where an osmotic pressure promotes loop growth), and suggest, by comparison to recent in vitro and in vivo measurements, that diffusive extrusion can in principle generate loops of the size observed in the data. Extra View on : C. A. Brackley, J. Johnson, D. Michieletto, A. N. Morozov, M. Nicodemi, P. R. Cook, and D. Marenduzzo "Non-equilibrium chromosome looping via molecular slip-links", Physical Review Letters 119 138101 (2017).</p
Reply to “Comment on ‘Attenuation, source parameters and site effects in the Irpinia–Basilicata region (southern Apennines, Italy)’ by I.B. Morozov”
No full textWe thank Igor B. Morozov for his interest in our article and for his comment (Morozov 2011)
regarding the non-parametric attenuation curves for the Irpinia–Basilicata region obtained
by generalized spectral inversion (Cantore et al. 2011). Morozov's comment has its root in a
new model proposed by Morozov (2008, 2010) for the interpretation of seismic attenuation
data, where the author comes to the conclusion that the typically used geometrical
spreading terms are oversimplified and argues in favor of a new geometrical spreading ...Published91-934T. Fisica dei terremoti e scenari cosismiciJCR Journalrestricte
Automation of Contractual Processes at the Enterprise
No full textMorozov D. Automation of Contractual Processes at the Enterprise / D. Morozov, D. Domashenko // Тиждень науки-2024. Факультет міжнародного туризму та економіки. Тези доповідей науково-практичної конференції, Запоріжжя, 15-19 квітня 2024 р. / Редкол. : Вадим Шаломєєв (відпов. ред.) Електрон. дані. – Запоріжжя : НУ «Запорізька політехніка», 2024. – С. 364-366
RussianCognates
No full textThis dataset contains a few number of cognate and non-cognate pairs of Russian words. 5 types of pairs are presented: 1) not cognate (totally different roots), 2) not cognate (homonymic roots), 3) not cognate (synonyms), 4) cognate (literal matching roots), 5) cognate (roots with alternations). Current dataset contains 140 pairs of each type and will be increased
Suberites cebriones Morozov & Sabirov & Zimina 2019, sp. nov.
No full textSuberites cebriones sp. nov. (Figure 9 (a – f)) Material examined The holotype was collected in the central part of the Laptev Sea (75.19°N, 128.46°E); it is deposited in the Edward Eversman Zoology Museum (identification number 2.2.8.441). Paratypes localities: one specimen from same locality as holotype (75.19°N, 128.46°E); two specimens from north of the New Siberian Islands (76.25°N, 139.05° E; 77.23°N, 137.06°E); one specimen from the central part of the Laptev Sea (76.05° N, 122.75°E). Description (Figure 9 (d – e)). Sponge cup shaped or club shaped (only small juvenile forms), up to 3.5 cm in height and 4 cm in width. The inner surface of cup-shaped sponge is covered with evenly scattered small pores (about 0.1 mm in diameter), forming a sieve. In the case of juvenile forms (which may easily be confused with corresponding forms of s. montalbidus) the single osculum is located on the top. Surface is smooth. The body is tolerably firm, only slightly compressible in consistency. Sometimes provided with weakly pronounced peduncle. Colour (in alcohol) is beige. Spicules Styles (tylo- and subtylostyles) straight, rather short-pointed (spicules with blunt apical end occasionally found), dimensions: 124.8 – 395.4 – 677 × 5.5 – 11.4 (n = 200) µm; microxea and microstrongyles centrotylote, spined, dimensions 21.3 – 41 – 67.4 (n = 60) µm and 9.87 – 19.37 – 28.22 (n = 60) µm, respectively. Etymology In Greek mythology, Cebriones was the illegitimate son of King Priam of Troy and participated in the Trojan War as charioteer for his half-brother Hector. Remarks In the examined materials, we observed that several specimens differed substantially in their outer morphology from the above-mentioned representatives of suberites montalbidus. However, the spicular analysis did not reveal any differences between them. The reason to allocate suberites cebriones sp. nov. as a new species is the uniqueness of its skeletal architecture; in the case of s. montalbidus, the microscleres are confined to the thin cortical layer, while in s. cebriones sp. nov., they are also distributed in large numbers throughout the interior (Figure 9 (a – b)).Published as part of Morozov, Grigori, Sabirov, Rushan & Zimina, Olga, 2019, Sponge fauna of the New Siberian Shoal: biodiversity and some features of formation, pp. 2961-2992 in Journal of Natural History 52 (47) on pages 2961-2992, DOI: 10.1080/00222933.2018.1554166, http://zenodo.org/record/365416
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Figure 3 in Sponge fauna of the New Siberian Shoal: biodiversity and some features of formation
No full textFigure 3. Iophon koltuni sp. nov.: (a–d1) scanning electron microscope (SEM) images of spicules; (a) acanthostyle; (b) tylote; (b1) end of tylote; (c) bipocillum; (d, d1) palmate anisochelae.Published as part of Morozov, Grigori, Sabirov, Rushan & Zimina, Olga, 2019, Journal of Natural History 52 (47) on pages 2961-2992, DOI: 10.1080/00222933.2018.1554166, http://zenodo.org/record/365416
Figure 9 in Sponge fauna of the New Siberian Shoal: biodiversity and some features of formation
No full textFigure 9. suberites cebriones sp. nov.: (a, b) longitudinal sections through the surface (a) and inner part (b) of the sponge; (c) sieve area at the internal surface; (d) pore area at the external surface; (d, e) habitus.Published as part of Morozov, Grigori, Sabirov, Rushan & Zimina, Olga, 2019, Journal of Natural History 52 (47) on pages 2961-2992, DOI: 10.1080/00222933.2018.1554166, http://zenodo.org/record/365416
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