122,726 research outputs found
Megaphthalmoides vittatus Iwasa 2021, sp. nov.
No full textMegaphthalmoides vittatus sp. nov. [Japanese name: Kurotsuno-sesuji-funbae] (Figs 38–43) Type material examined. Holotype ♂, JAPAN: Kamikochi, Azumimura, Nagano Pref., Honshu, 3-4. x. 1988, leg. S. Shinonaga (OUAVM). Paratypes: Honshu, 1 ♂, Tôshichi Spa, Hachimantai City, Iwate Pref., 3. viii. 2013, leg. D. Kato (OUAVM); 1 ♂, Hatomati-toge, Oze, Gumma Pref. 7. vii. 1951, leg. H. Hasegawa (IAES); 1 ♂, Gumma Pref., 23. ix. 1950, leg. N. Fukuhara (IAES). Diagnosis. Megaphthalmoides vittatus sp. nov. can be recognized by frontal vitta with a distinct black pattern and wholly black postpedicel. Description. Male (Fig. 38). Head (Fig. 39): eyes reddish brown; frontal vitta with a distinct black pattern; fronto-orbital plate yellow; ocellar triangle dark; face yellow and shiny; parafacial very narrow; gena and postgena yellow slightly with silvery microtrichose; occiput yellow and shiny; postpedicel (Fig. 40) black and approximately 2 times as long as wide; pedicel yellow; arista short-haired; palpus yellow and filiform, sparsely with short setulae anteroventrally; proboscis yellow to brown; vibrissal angle with 1 strong seta and 1 subvibrissae. Chaetotaxy (black): 2-3 fr (medioclinate), 2 or (1 proclinate, 1 latero-reclinate), 1 oc, 1 vti, 1 vte, 1 poc. Thorax: wholly yellow and shiny; scutum and prescutum with weak longitudinal stripe; proepisternum bare; anepisternum, katepisternum and anepimeron sparsely covered with short hair-like setulae; meron and katatergite bare; metanotum bare and slightly silvery microtrichose. Chaetotaxy (black): 2 pprn, 2 npl, 1+2 ial; 2 sa, 2 pa, 2+3 dc, 1 bsc, 1 apsc; 1 prepm, 2-1 (2 long, 1 short) anepst, 1 kepst. Wings: hyaline, slightly tinged with brown; veins brown; veins R 4+5 and M 1 almost parallel; vein A 1 +CuA 2 reach wing margin; calypter yellow with hairs marginally; halter yellow. Legs: coxae yellow to light brown; femora and tibiae yellow; fore femur yellow, ventrally and posterodorsally covered with hairs and setulae; mid femur apically black, with several a setulae; hind femur apically black with a row of ad setae; fore tibia with 1 p seta at basal two-fifths, 1 d seta near half and 1 preapical pd and 1 preapical d; mid tibia with 1 ad and 1 av setae at distal one-third and 1 apical av and 1 apical pv; hind tibia with 3 ad and 3 pd setae at regular intervals and 1 apical av; tarsi dark brown. Abdomen: tergites brown to dark brown and shiny, covered with hair-like setulae and distinct setae at posterior margin of each segment; sternite V (Fig. 41) bilobate posteriorly, covered with long and short setae on lobes; epandrium (Figs 42, 43) sparsely covered with short setae; surstylus (Figs 42, 43) long and slender, tapered apically; aedeagus stout and sclerotized; epiphallus rod-shaped and tapering apically; paramere comparatively thick with 1 short setula posteroventrally; hypandrium sclerotized and rounded, rhombus-shaped; cercus (Figs. 42, 43) somewhat elongated, covered with hair-like setulae. Length (♂). Body, 5.0–5.2 mm; wings, 5.8 mm. Female. Unknown. Distribution. Japan (Honshu). Etymology. The scientific name derives from the Latin vitta meaning band, referring the presence of a distinct black band on the frons of the head. Remarks. This species is closely similar to M. unilineatus (Zetterstedt), but can be distinguished from it by characteristics mentioned in the following key.Published as part of Iwasa, Mitsuhiro, 2021, Three new species and six new records of Scathophagidae (Diptera) from Japan with a key to the Japanese genera, pp. 531-553 in Zootaxa 4981 (3) on page 545, DOI: 10.11646/zootaxa.4981.3.6, http://zenodo.org/record/492141
Megaphthalma pallida
No full text<i>Megaphthalma pallida</i> (Fallén, 1819) <p>[Japanese name: Seobi-kiiro-funbae]</p> <p>(Figs 28–29)</p> <p> <i>Cordylura pallida</i> Fallén, 1819: 8. Type-locality: “Westrogothis… Scania ” [Sweden].</p> <p> <b>Material examined.</b> <i>Hokkaido,</i> 2 ♀, Iwanai Riv., Obihiro, Tokachi, 19. ix. 1995, leg. M. Iwasa. <b>Diagnosis.</b> This species is recognized by the following characteristics: frons, face, parafacial, and gena yellow; prescutum and scutum dark brown; postpronotum and thoracic pleura yellow; scutellum yellow with a pair of apical setae (Fig. 28); legs wholly yellow; abdominal tergites wholly yellow with narrow black line on each posterior margin (Fig. 29).</p> <p> <b>Body length</b> (♀). 5.5–6.0 mm.</p> <p> <b>Distribution.</b> Europe, Japan (Hokkaido), Russia (the European part, Siberia, the Far East) (Bagachanova <i>et al</i>., 2016), North America. New to Japan.</p> <p> <b>Remarks.</b> Available specimens of this species are females, but as a result of my examination of specimens of <i>M. pallida</i> preserved in the Museum National d’Histoire naturelle (Paris), the characteristics agreed with those of female <i>M. pallida</i>.</p>Published as part of <i>Iwasa, Mitsuhiro, 2021, Three new species and six new records of Scathophagidae (Diptera) from Japan with a key to the Japanese genera, pp. 531-553 in Zootaxa 4981 (3)</i> on pages 541-542, DOI: 10.11646/zootaxa.4981.3.6, <a href="http://zenodo.org/record/4921413">http://zenodo.org/record/4921413</a>
A 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
Quantifying metastatic inefficiency:rare genotypes versus rare dynamics
No full textWe introduce and solve a 'null model' of stochastic metastatic colonization. The model is described by a single parameter ?: the ratio of the rate of cell division to the rate of cell death for a disseminated tumour cell in a given secondary tissue environment. We are primarily interested in the case in which colonizing cells are poorly adapted for proliferation in the local tissue environment, so that cell death is more likely than cell division, i.e. ? 1, we find that the probability of establishment is exponentially rare, as expected, and yet the mean time for such rare events is of the form ~log (N)/(1 - ?) while the standard deviation of colonization times is ~1/(1 - ?). Thus, counter to naive expectation, for ? 1), i.e. the statistics show a duality mapping (1 - ?) --> (? - 1). We conclude our analysis with a study of heterogeneity in the fitness of colonising cells, and describe a phase diagram delineating parameter regions in which metastatic colonization is dominated either by low or high fitness cells, showing that both are plausible given our current knowledge of physiological conditions in human cancer
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
The Numerical Modelling of Unsteady Incompressible Viscous Flows with Forced Vortices Near Solid Walls
No full textThe preliminary analysis of the viscous interaction between a solid wall, namely a flat plate and clusters of vortices injected in the incomplessible main flow or the ones generated by a sliding wall, is presented. The Finite Difference models have been derived eithe by the classical Stream Function-Vorticity form of the 2D Navier-Stokes Equations, either by the use of a new two-components vector potential H which has the advantage of furnishing, in addition to the flow field, thehydraulic head too. Qualitative comparisonswith similar experimental or numerical analyses already performed are possible
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)
Dissipative Range Scaling of Higher Order Structure Functions for Velocity and Passive Scalars
No full textDifferently to Kolmogorov's second similarity hypothesis, we find that the 2n-th order velocity and scalar structure functions scale with n-th order moment of the energy dissipation and the scalar dissipation, respectively. The origins of this scaling are analyzed by the transport equations of the fourth order velocity and scalar increment moments and by direct numerical simulations
Fast implementation of iterative adaptive approach for wideband unambiguous radar detection
No full textAccepted author manuscriptMicrowave Sensing, Signals & System
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