1,721,257 research outputs found
Liu Ding New Man
No full textContinually interested in the boundaries between artistic, social and political practices, Liu Ding’s varied output includes: roundtable discussions and interviews, published theoretical texts, performances, lectures, curatorial projects, exhibitions and a commercial store, Liu Ding’s Store. In addition to employing these differing channels, Liu Ding draws on many sources and collaborators that shape his practice and its reception, from hired traditional painters to professional actors.
His interest in broadening perspectives of history beyond national identity lends itself to discussions of global commonality and shared visual, physical or psychological
experiences. Liu Ding’s central focus in the exhibition is the notion of the ‘New Man’. This term appeared frequently in the Communist government’s rhetoric and propaganda to enforce a vision of revolution, one of re-configured traditions and cultures that generate new aesthetics and new horizons. In terms of the individual, the figure of the ‘New Man’ suggests a wiliness to adapt oneself to a new ideological context. Combining the historical with the contemporary, the artist revisits the various stages of artistic reforms and formation as initiated by the Communist government since coming into power in the 1940s. He brings to the fore the construction of history and its relationship with contemporary art and subjectivity.
In 2009 Liu Ding was chosen to represent China at the 53rd Venice Biennale and in 2012 he had his first solo exhibition in the United States at the Frye Art Museum, Seattle. He has exhibited extensively in China, the UK and internationally including The Tanks and BMW Tate Live: Performance Room, Tate Modern, London; Prospect.3: Notes for Now, New Orleans Biennale; Witte de With, Rotterdam; Battersea Power Station, offsite Serpentine Gallery exhibition, London; Power Station of Art, Shanghai (10th Shanghai Biennale); Taipei Fine Arts Museum (Taipei 2012 Biennale); Seoul Museum of Art, Seoul and Museum of Modern Art, Oslo
Molecular dissection of the assembly and morphogenesis processes of corona virus- the essential roles of the viral envelope protein.
No full textTo promote viral entry, replication, release and spread to neighboring cells, many cytolytic animal viruses encode proteins responsible for modification of host cell membrane permeability and for formation of ion channels in host cell membranes during their life cycles. In this study, we show that the envelope (E) protein of severe acute respiratory syndrome (SARS)-associated coronavirus (SARS-CoV) can induce membrane permeability changes when expressed in E. coli. E protein expressed in bacterial and mammalian cells under reducing conditions existed as monomers, but formed homodimer and homotrimer under non-reducing conditions. Site-directed mutagenesis studies revealed that two cysteine residues of the E protein were essential for oligomerization, leading to induction of membrane permeability. This is the first report demonstrating that a coronavirus-encoded protein could modify membrane permeability
Aphelocheirus ellipsoideus Liu & Ding 2005
No full textAphelocheirus ellipsoideus Liu & Ding, 2005 (Figs. 1 C–F; 3 A–D) Aphelocheirus ellipsoideus Liu & Ding, 2005: 272. Description. Macropterous male. Body length 7.10–8.10mm, body width 4.60–4.90mm, moderate size for genus, form elongate. General colour blackish brown. Head. Dark brown, shining, minutely alveolate; eyes black, shining, lateral margins weakly sinuate; interocular space between eyes shiny, dark brown. Preocular portion of head moderately long, 0.3 times as long as eye length. Antennae golden brown; rostrum gold at base and dark red at apex, glabrous, attaining anterior margin of hind coxae. Thorax. Pronotum (Fig. 1 E, F) dull blackish brown, coarsely rugose, bearing very short recumbent golden setae, posterior portion expanded. Maximum width at posterolateral corners, 3.9 times median length. Lateral margins yellowish, each bearing a few short stout setae, posterolateral angles rounded. Scutellum dark brown, width/length = 2.1 / 1.0, surface coarsely rugose, lateral margins weakly sinuate. Mesoscutum black, cymbiform, bearing short recumbent setae. Hemelytra dark brown, large, complete and rugose, exceeding tip of abdomen, bearing short recumbent setae; lateral margins of hemelytra (Fig. 1 E, F) dark brown, poster margins of hemelytra light brown; clavus, corium and embolium well defined, membrane brown. Hind wing veination obscure in varying degrees (Fig. 3 A). Prosternum sharply carinate medially, propleuron with inner projection deeply notched, with apex round. Abdomen. Dorsal surface dark brown, coarsely rugose, bearing recumbent dark setae, posterolateral angles of segments III–V prolonged into slender spinose projections, acute posteriorly. Ventral surface brown to dark brown, covered with fine recumbent gold setae; abdominal segments V–VII asymmetrical. Segments III–V with irregular glabrous pits adjacent to and inward of spiracular rosettes, abdomen with segments III–VI weakly and broadly carinate medially, IV–VII each with median protruberance bearing 2–6 short stout setae, III with row of small glabrous pits present extending inward from spiracular rosette and along base of segment (Fig. 3 B). Legs. White to yellowish, shining, covered with fine recumbent white setae; fore trochanter, femur, tibia and tarsus with thick hair pads on inner faces; fore, middle and hind coxae with combs of white setae distally; hind femur with many fine white setae and gold spines along anterior margin. Middle femur, tibia and tarsus sparsely set with stout golden spines anteriorly; hind tibia sparsely set with stout golden spines anteriorly, transverse row of golden spines apically; hind tibia and tarsus with long swimming hairs posteriorly; claws white basally, brown apically, curved. Genitalia. Left paramere curving, tip wide; right paramere thick, tip slightly pointed; aedeagus slender, with many small teeth and three large teeth distinctly. Female. Colour and vestiture generally as in male. Subgenital plate roughly triangular, tip broadly rounded, bearing hair tufts laterally and apically (Fig. 3 C). Brachypterous male. Body blackish brown, with yellowish brown blotches dorsally. Head yellowish, slightly rugose, shining, rostrum attaining anterior margin of hind coxae; pronotum brown, surface rugose, shining, lateral and posterior margins yellowish brown, with two small tumescences on posterolateral angles, yellowish brown; propleuron with inner projection deeply notched, apex slightly pointed; scutellum yellowish brown, with a small brownish blotch at middle of lateral margin; hemelytra brown, rugose, lateral margin yellowish brown, widely separated medially; abdomen dorsally brown, connexivum yellowish brown, surface rugose, with small yellowish brown blotches, posterolateral angles of tergites III–V spinose; ventral surface smooth; legs yellowish brown. Brachypterous female. Similar to brachypterous male in general structure and coloration (Fig. 1 D). Material examined. Macropterous form. CHINA, Hainan Province: 9 ♂, 11 ♀, Wuzhi Mountain, (18.9480 N, 109.6226 E), alt. 232m, 4. VII. 2014, Qiang XIE, Yan-hui WANG & Yan-zhuo WU leg.. Brachypterous form. Holotype ♂, Diaoluo Mountain (18.7346 N, 109.8370 E), 31. III. 1980, Huan-guang ZOU leg.; 1 ♂, 4 ♀, Diaoluo Mountain Nature Reserve (18.8346 N, 109.8240 E), alt. 920m, 21. IV. 2008, Bo CAI leg.; 4 ♂, 3 ♀, Wuzhi Mountain (18.9480 N, 109.6226 E), alt. 570m, 8. VIII. 2013, Qiang XIE & Yan-hui WANG leg.; 5 ♂, 3 ♀, Wuzhi Mountain, (18.9480 N, 109.6226 E), alt. 232m, 4. VII. 2014, Qiang XIE, Yan-hui WANG & Yan-zhuo WU leg.. Distribution. China (Hainan Province)Published as part of Xie, Tong-Yin & Liu, Guo-Qing, 2015, A new species and notes on the genus Aphelocheirus (Hemiptera: Heteroptera: Aphelocheiridae) from China, pp. 437-443 in Zootaxa 4058 (3) on pages 441-442, DOI: 10.11646/zootaxa.4058.3.10, http://zenodo.org/record/23625
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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. Aphelocheirus ellipsoideus Liu & Ding. A in A new species and notes on the genus Aphelocheirus (Hemiptera: Heteroptera: Aphelocheiridae) from China
No full textFIGURE 3. Aphelocheirus ellipsoideus Liu & Ding. A. Right hind wing (macropterous form); B. Ventral view of posterior abdominal segments of macropterous male; C. Ventral view of posterior abdominal segments of macropterous female; D. Ventral view of posterior abdominal segments of brachypterous female.Published as part of Xie, Tong-Yin & Liu, Guo-Qing, 2015, A new species and notes on the genus Aphelocheirus (Hemiptera: Heteroptera: Aphelocheiridae) from China, pp. 437-443 in Zootaxa 4058 (3) on page 442, DOI: 10.11646/zootaxa.4058.3.10, http://zenodo.org/record/23625
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe 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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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