122,468 research outputs found
Koszul complexes and spectral sequences associated with Lie algebroids
No full textWe study some spectral sequences associated with a locally free OX-module A which has a Lie algebroid structure. Here X is either a complex manifold or a regular scheme over an algebraically closed field k. One spectral sequence can be associated with A by choosing a global section V of A, and considering a Koszul complex with a differential given by inner product by V. This spectral sequence is shown to degenerate at the second page by using Deligne’s degeneracy criterion. Another spectral sequence we study arises when considering the Atiyah algebroid DE of a holomolorphic vector bundle E on a complex manifold. If V is a differential operator on E with scalar symbol, i.e, a global section of DE, we associate with the pair (E, V) a twisted Koszul complex. The first spectral sequence associated with this complex is known to degenerate at the first page in the untwisted (E= 0) case
Cohomology of skew-holomorphic lie algebroids
No full textWe introduce the notion of a skew-holomorphic Lie algebroid on a complex manifold and explore some cohomology theories that can be associated with it. We present examples and applications of this notion in terms of different types of holomorphic Poisson structures
Simulium (Montisimulium) Rubtsov
No full textSubgenus MONTISIMULIUM Rubtsov Simulium alizadei (Djafarov) Chubareva & Kachvoryan (1975, comparison with S. montium, description, photos of all arms, polytene chromosome lengths; as Eusimulium gviletense alizadei): Armenia Chubareva & Petrova (1979, notes on general polytene features, polytene chromosome lengths; as M. gviletense alizadei): Armenia Kachvoryan (1979, notes on comparison with selected species of subgenus Nevermannia [as Chelocnetha and Cnetha], photos of ends of all arms; as Montisimulium gviletense alizadei): [Armenia] Kachvoryan & Adler (2000, note on undifferentiated sex chromosomes): Armenia Chubareva & Petrova (2003, notes on general polytene features, polytene chromosome lengths; as M. gviletense): Armenia Kachvoryan, Petrova & Chubareva (2003, notes on general polytene features): Armenia Chubareva & Petrova (2008 a, description, photos of metaphase and polytene complements, polytene chromosome lengths): Armenia Simulium alpinum Rubtsov (group) Chubareva & Petrova (1975, comparison with Austrosimulium tillyardianum [as A. tillyardi], idiogram): [Kyrgyzstan] Simulium asulcatum (Rubtsov) Chubareva & Petrova (2003, notes on general polytene features): Kazakhstan Chubareva & Petrova (2008 a, description, photos of metaphase and polytene complements): Kazakhstan Simulium bartangum Chubareva Chubareva (2000 a, original description of species, resolution relative to S. montium): Tajikistan Chubareva (2001 a, inversions mapped, photos of all polytene arms and metaphase complement, resolution relative to S. montium): Tajikistan Chubareva & Petrova (2003, notes on general polytene features): Tajikistan Chubareva & Petrova (2008 a, description, photos of metaphase and polytene complements): Tajikistan Simulium danijari (Chubareva & Ismagulov) Chubareva & Ismagulov (1992, original description of species, photos of all arms): Kazakhstan Ismagulov (1993, notes on general polytene features [only abstract seen]): Kazakhstan Chubareva & Petrova (2003, notes on general polytene features): Kazakhstan Chubareva & Petrova (2008 a, description, photos of metaphase and polytene complements): Kazakhstan Simulium decimfiliatum (Rubtsov) Chubareva & Petrova (1979, 2003, notes on general polytene features): Tajikistan Chubareva (1995 a, comparison with S. schevyakovi [as M. shevjakovi (sic)], description, photos of all arms and metaphase complement): Tajikistan Chubareva & Petrova (2008 a, description, photos of metaphase and polytene complements): Tajikistan Simulium ghoomense Datta Dey & Fumafartsok (1984 a, metaphase chromosome lengths, notes on B chromosomes, photos of metaphase complement): India Henry (1993, description, photo of polytene complement, polytene chromosome lengths): India Henry, Thapa, Adler, Dey & Varma (2011, description, photos of mitotic and polytene complements and all arms, polytene chromosome lengths): India Simulium heishuiense Chen & Wen Zhang, Zhang, Chen & Ge (2008, description; drawings of all polytene arms; low-resolution photos of polytene complement and all chromosomes; polytene chromosome relative lengths): China Simulium inflatum (Rubtsov) Chubareva (1974 a, frequency of B chromosomes, low-resolution photo of polytene complement with B chromosomes): Tajikistan Chubareva & Petrova (1979, 2003, notes on general polytene features, polytene chromosome lengths): Tajikistan Chubareva & Petrova (1984, notes on B chromosomes): Tajikistan Chubareva (1998, frequency of B chromosomes, notes on general polytene features, photos of B chromosomes and metaphase and polytene complements, polytene chromosome lengths): Tajikistan Chubareva & Petrova (2008 a, description, photos of B chromosomes and metaphase and polytene complements, polytene chromosome lengths): Tajikistan Simulium jasgulemum (Chubareva) Chubareva (2000 a, inversions mapped; original description of species; photos of all arms, B chromosomes, and metaphase complement; resolution relative to S. montium): Tajikistan Chubareva & Petrova (2003, notes on general polytene features, polytene chromosome lengths): Tajikistan Chubareva & Petrova (2008 a, description, photos of B chromosomes and metaphase and polytene complements, polytene chromosome lengths): Tajikistan Simulium lepnevae (Rubtsov) Chubareva & Petrova (1979, 2003, notes on general polytene features): Tajikistan Chubareva (1996, description; photos of all arms, chromocenter, and metaphase complement): Tajikistan Chubareva & Petrova (2008 a, description, photos of chromocenter and metaphase and polytene complements): Tajikistan Simulium merga Takaoka & Choochote Kuvangkadilok, Boonkemtong & Phayuhasena (1998, low-resolution photos of C-banded and orcein-stained polytene chromosomes [II and III reversed]; as S. ‘sp. G’): Thailand Kuvangkadilok, Phayuhasena & Boonkemtong (1999, description, photos of polytene chromosomes [lowmagnification, II and III reversed] and IIS [as IIIS], polytene chromosome relative lengths; as S. (Montisimulium) ‘sp. G’): Thailand Simulium montium Rubtsov Chubareva & Kachvoryan (1975, comparison with S. alizadei [as Eusimulium gviletense alizadei], description, photos of all polytene arms and metaphase complement, polytene chromosome lengths): Tajikistan Chubareva & Petrova (1975, comparison with Austrosimulium tillyardianum [as A. tillyardi], idiogram, polytene chromosome lengths): [Kyrgyzstan] Chubareva (1979 a, notes on general polytene features): Tajikistan Chubareva & Petrova (1979, 2003, notes on general polytene features, polytene chromosome lengths): Tajikistan Chubareva (1980 a, idiogram, notes on general polytene features): Tajikistan Chubareva & Petrova (2008 a, description, photos of metaphase and polytene complements, polytene chromosome lengths): Tajikistan Simulium obichingoum (Chubareva) Chubareva (2000 a, inversions mapped, original description of species, photos of all polytene arms and metaphase complement, resolution relative to S. montium): Tajikistan Chubareva & Petrova (2003, notes on general polytene features, polytene chromosome lengths): Tajikistan Chubareva & Petrova (2008 a, description, photos of metaphase and polytene complements, polytene chromosome lengths): Tajikistan Simulium octofiliatum (Rubtsov) Chubareva & Petrova (1979, notes on general polytene features): Tajikistan Chubareva & Petrova (1984, notes on B chromosomes, photos of B chromosomes and metaphase complement): Tajikistan Ismagulov (1992, notes on general polytene features): Tajikistan Chubareva (1998, frequency of B chromosomes, notes on general polytene features, photos of B chromosomes and metaphase and polytene complements, polytene chromosome lengths): Tajikistan Chubareva & Petrova (2000 a, note on presence of B chromosomes): Tajikistan Chubareva & Petrova (2003, notes on general polytene features, polytene chromosome lengths): Tajikistan Chubareva, Petrova & Kachvoryan (2003, photo of centromere region): Tajikistan Chubareva & Petrova (2008 a, description; photos of B chromosomes, chromocenter, and metaphase and polytene complements; polytene chromosome lengths): Tajikistan Simulium peskovi Ismagulov & Koshkimbaev Ismagulov & Koshkimbaev (1996, notes on general polytene features, original description of species, photos of all chromosomes): Kazakhstan Simulium quattuordecimfiliatum (Rubtsov) Chubareva & Petrova (1979, notes on general polytene features; as M. quattuordesimfiliatum [sic]): Tajikistan Simulium quattuordecimfilum Rubtsov Chubareva & Petrova (1979, 2003, notes on general polytene features, polytene chromosome lengths): Tajikistan Chubareva (2000 a, description, inversions mapped, photos of all polytene arms and metaphase complement, resolution relative to S. montium): Tajikistan Chubareva & Petrova (2008 a, description, photos of metaphase and polytene complements, polytene chromosome lengths): Tajikistan Simulium schevyakovi Dorogostaisky, Rubtsov & Vlasenko Chubareva & Petrova (1979, 2003, notes on general polytene features, polytene chromosome lengths; as M. shevjakovi [sic]): Russia Chubareva (1995 a, comparison with S. decimfiliatum, description, photos of all polytene arms and metaphase complement; as M. shevjakovi [sic]): Russia Petrova & Chubareva (2006, notes on general polytene features, photos of metaphase and polytene complements, selected inversions mapped; as M. shevjakovi [sic] and M. schevyakovi): Russia Chubareva & Petrova (2008 a, description, photos of metaphase and polytene complements, polytene chromosome lengths; as M. shevyakovi [sic]): Russia Simulium vantshum (Chubareva) Chubareva (2000 a, inversion mapped, original description of species, photos of all arms and metaphase complement, resolution relative to S. montium): Tajikistan Chubareva & Petrova (2003, notes on general polytene features, polytene chromosome lengths): Tajikistan Chubareva, Petrova & Kachvoryan (2003, photo of chromocenter): Tajikistan Chubareva & Petrova (2008 a, description, photos of chromocenter and metaphase and polytene complements, polytene chromosome lengths): Tajikistan Simulium ‘sp. different from octofiliatum ’ Ismagulov Ismagulov (1992, notes on general polytene features): Tajikistan Simulium ‘sp.’ Chubareva Chubareva & Petrova (1979, notes on general polytene features, polytene chromosome lengths): Tajikistan Chubareva & Petrova (1984, notes on B chromosomes, photos of B chromosomes and metaphase complement): Tajikistan Chubareva (1995 b, description of ‘tandem fusion’ to 2 n = 4, interpretive drawing and photos of metaphase and polytene complements; as M. gr. montium): Tajikistan Chubareva & Petrova (2008 a, description, photos of metaphase and polytene complements, ‘tandem fusion’ to 2 n = 4): Tajikistan Simulium ‘sp. 1 ’ (Ismagulov) Ismagulov (1993, notes on general polytene features [only abstract seen]; as Montisimulium ‘ sp. n. 1 ’): Kazakhstan Chubareva & Petrova (2003, notes on general polytene features): Kazakhstan Simulium ‘sp. 2 ’ (Ismagulov) Ismagulov (1993, notes on general polytene features [only abstract seen]; as Montisimulium ‘ sp. n. 2 ’): Kazakhstan Chubareva & Petrova (2003, notes on general polytene features): Kazakhstan Simulium ‘sp. 3 ’ (Ismagulov) Ismagulov (1993, notes on general polytene features [only abstract seen]; as Montisimulium ‘ sp. n. 3 ’): Kazakhstan Chubareva & Petrova (2003, notes on general polytene features): Kazakhstan Simulium ‘sp. 4 ’ (Ismagulov) Ismagulov (1993, notes on general polytene features [only abstract seen]; as Montisimulium ‘ sp. n. 4 ’): Kazakhstan Chubareva & Petrova (2003, notes on general polytene features): Kazakhstan Simulium ‘sp. 5 ’ (Chubareva & Petrova) Chubareva & Petrova (2003, notes on general polytene features, polytene chromosome lengths; as Montisimulium ‘sp. 5 ’): TajikistanPublished as part of Adler, Peter H. & Crosskey, Roger W., 2015, Cytotaxonomy of the Simuliidae (Diptera): a systematic and bibliographic conspectus, pp. 1-139 in Zootaxa 3975 (1) on pages 60-63, DOI: 10.11646/zootaxa.3975.1.1, http://zenodo.org/record/19236
Computational Model for Parsing Expression Grammars
No full textWe present a computational model for Parsing Expression Grammars (PEGs). The predecessor of PEGs top-down parsing languages (TDPLs) were discovered by A. Birman and J. Ullman in the 1960-s, B. Ford showed in 2004 that both formalisms recognize the same class named Parsing Expression Languages (PELs). A. Birman and J. Ullman established such important properties like TDPLs generate any DCFL and some non-context-free languages like a^n b^n c^n, a linear-time parsing algorithm was constructed as well. But since this parsing algorithm was impractical in the 60-s TDPLs were abandoned and then upgraded by B. Ford to PEGs, so the parsing algorithm was improved (from the practical point of view) as well. Now PEGs are actively used in compilers (eg., Python replaced LL(1)-parser with a PEG one) so as for text processing as well. In this paper, we present a computational model for PEG, obtain structural properties of PELs, namely proof that PELs contain Boolean closure of regular closure of DCFLs and PELs are closed over left concatenation with regular closure of DCFLs. We present an extension of the PELs class based on the extension of our computational model. Our model is an upgrade of deterministic pushdown automata (DPDA) such that during the pop of a symbol it is allowed to return the head to the position of the push of the symbol. We provide a linear-time simulation algorithm for the 2-way version of this model, which is similar to the famous S. Cook linear-time simulation algorithm of 2-way DPDA
Erratum: a synonymous variant in GCK gene as a cause of gestational diabetes mellitus (diabetes mellitus. 2019;22(2). Doi: 10.14341/dm9938)
No full textAn erratum on «A synonymous variant in GCK gene as a cause of gestational diabetes mellitus» by Natalya A. Zubkova, Petr M. Rubtsov, Liudmila I. Ibragimova, Nina A. Makretskaya, Evgeny V. Vasiliev, Vasily M. Petrov, Anatoly N. Tiulpakov (2019). Diabetes mellitus. 22(2). doi: 10.14341/DM9938An error was made in the list of authors: Fatima F. Burumkulova was not indicated as author of this article. The correct list of authors: Natalya A. Zubkova, Petr M. Rubtsov, Fatima F. Burumkulova, Liudmila I. Ibragimova, Nina A. Makretskaya, Evgeny V. Vasiliev, Vasily M. Petrov, Anatoly N. Tiulpakov.The editorial board apologize for this error and state that this does not change the scientific conclusions of the article in any way.The original article has been updated
Reconstruction of the female Gorilla gorilla karyotype using 25-color FISH and multicolor banding (MCB)
No full textA Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
The vanishing author in computer-generated works: a critical analysis of recent Australian case law
No full textAbstract
The use of software is ubiquitous in the creation of many copyright works, yet the requirement in copyright law that every work have a human author who engages in independent intellectual effort means that its use may prevent copyright subsistence. Several recent Australian cases have refocused attention on authorship as an essential criterion of copyright subsistence, and these cases suggest that much computer-produced output may be authorless and thus lack copyright protection. This article, the first in a two-part series, analyses how each case deals with the question of authorship of computer-produced works and why the use of software diminishes copyright protection for a significant number of computer-generated works. The article critiques the application of conventional notions of human authorship developed in the pre-computer age to modern productions and suggests alternative approaches to authorship that satisfy both the major objectives of copyright policy and the need to adapt to the computer age. The article argues that, without a broader judicial approach to authorship of computer-generated works, Parliament must remedy the lacuna in protection for these ‘authorless’ works. Possible solutions for reform are suggested. In a forthcoming article, the author comprehensively examines those reform proposals
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
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