305,285 research outputs found
Synapsis puluongensis Bui & Bonkowski 2018, sp. nov.
No full textSynapsis puluongensis sp. nov. (Figs 1 A–F, 2A,C,E) Type locality. Vietnam, Thanh Hoa Province, Puluong Nature Reserve, 20º28′54″N 105º14′31″E, 950 m a.s.l. Type material. HOLOTYPE: ♁ ‘ VIETNAM | THANH HOA Prov. | Pu Luong Nat. Reserve, near Ban Ba vill. | 20º28’54’’N 105º14’31’’E, 950 m | primary forest | 10.–25.iv.2016 | Van Bac Bui leg.’ (VNUF). PARATYPES (five specimens): ♁, ‘ VIETNAM | THANH HOA Prov. | Pu Luong Nat. Reserve, near Ban Ba vill. | 20º28’55’’N 105º14’29’’E, 958 m | primary forest | 10.–25.iv. 2016 | Van Bac Bui leg.’ (VNUF); ♀, ‘VIETNNAM | THANH HOA Prov. | Pu Luong Nat. Reserve, near Ban Ba vill. | 20º28’54’’N 105º14’29’’E, 954 m | primary forest | 10.–25.iv.2016 | Van Bien Nguyen leg.’ (VNUF); 3♀♀, ‘ VIETNAM | THANH HOA Prov. | Pu Luong Nat.Reserve, near Ban Ba vill. | 20º28’56’’N 105º14’28’’E, 956 m | primary forest | 10.–25.iv.2016 | Van Bac Bui leg.’ (2 PLNR, 1 NMPC). Diagnosis. Body length 17.2–18.5 mm, body width 10.4– 11.5 mm; hypomeral cavities not covered by macrosetae; mesepisternal cavities absent; genae unexpanded; frons unarmed; anterolateral angles of pronotum not protruding; elytral striae strongly punctate; elytral intervals impunctate, convex and glossy, interval 2 near base not swollen; ventral sides of metafemora densely punctate. Description of holotype (male). Body length 18.38 mm, body width 11.32 mm. Whole surface black, very shiny and glabrous. Margins of legs and pronotum with reddish- brown macrosetae. Head broad (HeadL 3.67 mm, HeadW 7.44 mm), extremely rugose anteriorly; posterior part sparsely punctate; fine punctures surrounding eyes. Anterior margin of clypeus bidentate, V-shaped, flexed upwards, with few reddish setae. Distance between apices of clypeal denticles (DDC) 1.43 mm. Genae rectangular, quite distinctly separated from clypeus and frons by well-defined suture with sculptural punctures. Genae closely and evenly punctate, with scanty reddish macrosetae. Frons glabrous and very unevenly punctate. Area surrounding eyes bearing more closely spaced and coarser punctures than base. Frons unarmed, only slightly swollen. Antennae composed of 9 antennomeres. Antennomere I 1.34 mm in length, longer than antennomeres II–IV combined (1.25 mm in length). Antennomeres I and II darker, bearing more yellow macrosetae than remaining antennomeres. Prothorax. Pronotum transverse (PronL 4.9 mm, PronW 10.08 mm), widest at anterior quarter, with two distinct lateral carinae at each side. Area between carinae black, matte, glabrous and not punctate. Outer margin of outer carina with dense reddish-brown macrosetae. Anterolateral angles short and not protruding. Punctures not evenly distributed, denser at sides. Only small area at anterior edge of pronotal collar microrugose. Hypomeral cavities present but shallow, sparsely punctate and not covered with macrosetae. Meso-metaventrum quite smooth, with a few scattered fine punctures at its anterior end, bearing posterior median groove and deep excavation near metacoxae. Pterothorax. Elytra (ElyL 11.4 mm, MWoI123: 2.51 mm) convex, very shiny, deeply striate; elytral striae strongly, densely punctate (DP10, 15: 1.03 mm); intervals smooth and impunctate. Interval 2 near base not swollen. Mesepimeron and metepisternum flat, granulose and without macrosetae. Legs. Protibia (ProTiL 3.30 mm, ProTiW 2.35 mm, ProTiSL 1.21 mm) tridentate, terminal tooth as long as protibial spur and nearly as long as protibial tarsus. Mesotibia (MesoTiL 3.34 mm, MesoTiW 1.33 mm, 1 stMesoTiSL 2.09 mm, 2 ndMesoTiSL 0.9 mm) and metatibia (MetaTiL 4.95 mm, MetaTiW 1.27 mm, MetaTiSL 1.55 mm) with red scanty macrosetae and slender spurs. Metatarsomeres nearly similar in size (MetaTaL 3.72 mm, MetaTa1L 1.08 mm, MetaTa1W 0.68 mm, MetaTa5W 0.32 mm). Abdomen and pygidium. Abdominal ventrites opaque, sparsely punctate, and narrower at midline. Pygidium (PyL 2.46 mm, PyW 4.5 mm) feebly convex, densely and transversely punctate and scabrous. Aedeagus (Figs 1E, F). Phallobase length 3.57 mm in lateral view, with strong swelling in middle of basal suture. Parameres length 2.19 mm (in lateral view), triangle-shaped. Phallobase and parameres forming angle> 130º. Sexual dimorphism. Females differ from males in their weaker elytral striae, and meso- and metatrochanters with sparser reddish-brown macrosetae (absent in some specimens). Sexes also differ in the shape and strength of the metafemoral tooth, which is stronger in males. Compound eyes black in females but reddish brown in males. Morphometrics. See Table 1. Differential diagnosis. Synapsis puluongensis sp. nov. belongs to the S. birmanica group, as indicated by a combination of the following characters: hypomeral cavities present, genae unexpanded, frons unarmed, mesepisternal cavities absent, and upper longitudinal carina of male metatibia without brush of rusty setae. Species of the S. birmanica group may be clearly distinguished from those of S. ovalis, S. brahmina and S. tmolus groups by the presence of hypomeral cavities. The S. ritsemae group has expanded genae, in which it differs from the species of the S. birmanica group whose genae are unexpanded. Synapsis puluongensis sp. nov. can be distinguished from other known species of the group by the following characters: in S. puluongensis the elytral interval 2 is not swollen near the base (swollen in S. yama from northern and central Vietnam and Laos, S. horaki from northern Vietnam, S. dickinsoni from northern Thailand: Phukieo, S. ochii from northern Thailand: Chiang Mai and in S. masumotoi from Taiwan). Characters on the metafemora and elytral striae clearly differentiate S. puluongensis sp. nov. from the other species of the S. birmanica group recorded in Vietnam: both S. puluongensis sp. nov. and S. horaki have densely punctured metafemora on the ventral side, while S. yama has no punctures on the metafemur. In addition, S. puluongensis sp. nov. has coarse and closely spaced punctures on the elytral striae, which are absent or extremely weak in S. horaki (Figs 2 A–D). Synapsis puluongensis sp. nov. has hypomeral cavities without macrosetae, which distinguishes it from S. birmanica (hypomeral cavities are covered by a brush of rusty macrosetae). The new species has deep striae, whereas in S. birmanica the striae are feeble (Figs 2 E–F). Synapsis puluongensis sp. nov. is morphologically similar to S. naxiorum in its black and shiny dorsal side. However, the new species can be distinguished from S. naxiorum in having more punctures on the ventral side of the metafemora; elytral striae more densely punctate, intervals not punctate, and hypomeral cavities devoid of rusty setae (Figs 2A,G). The entire surface of S. puluongensis sp. nov. is black and shiny, in contrast to the opaque surface of S. punctata from Myanmar and S. roslihashimi from Malaysia. In addition, S. puluongensis sp. nov. has convex intervals, whereas S. roslihashimi and S. punctata have flat or only weakly convex intervals. In S. punctata and S. roslihashimi all margins of intervals are punctate, whereas they are impunctate in the new species. The new species can also be distinguished from S. punctata and S. roslihashimi by the absence of hypomeral rusty macrosetae. Etymology. The specific epithet puluongensis refers to the name of the type locality, Nature Reserve Puluong, Thanh Hoa Province, central Vietnam; adjective. Biology. The new species was collected in primary forests on limestone bedrock. The primary forests are characterized by a complex structure with various storeys, comprising an upper storey with emergent trees more than 35 m tall, belonging to Dipterocarpaceae and Combretaceae, a dominant lower storey (various tree species from 15 to 30 m tall), and a brush layer on the forest floor containing various herbs (Urticaceae, Araceae, Begoniaceae), lianas and parasitic plants (Connaraceae, Fabaceae, Orchidaceae, Loranthaceae).Published as part of Bui, Van Bac & Bonkowski, Michael, 2018, Synapsis puluongensis sp. nov. and redescription of S. horaki (Coleoptera: Scarabaeidae), with a key to Vietnamese species, pp. 407-418 in Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) (Acta. Ent. Mus. Natl. Pragae) 58 (2) on pages 408-413, DOI: 10.2478/aemnp-2018-0032, http://zenodo.org/record/450489
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
Fig. 1 in Synapsis puluongensis sp. nov. and redescription of S. horaki (Coleoptera: Scarabaeidae), with a key to Vietnamese species
No full textFig. 1. Synapsis puluongensis sp. nov. A–B – male, holotype. C–D – female, paratype. E – aedeagus, lateral view. F – aedeagus, dorsal view.Published as part of Bui, Van Bac & Bonkowski, Michael, 2018, Synapsis puluongensis sp. nov. and redescription of S. horaki (Coleoptera: Scarabaeidae), with a key to Vietnamese species, pp. 407-418 in Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 58 (2) on page 409, DOI: 10.2478/aemnp-2018-0032, http://zenodo.org/record/450489
Fig. 6 in Synapsis puluongensis sp. nov. and redescription of S. horaki (Coleoptera: Scarabaeidae), with a key to Vietnamese species
No full textFig. 6. Dorsal habitus, ventral surface of femora and mesepisternal cavities. A, C, D – Synapsis ovalis Boucomont, 1920; B, E, F – S. strnadi Král, 2002.Published as part of Bui, Van Bac & Bonkowski, Michael, 2018, Synapsis puluongensis sp. nov. and redescription of S. horaki (Coleoptera: Scarabaeidae), with a key to Vietnamese species, pp. 407-418 in Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 58 (2) on page 417, DOI: 10.2478/aemnp-2018-0032, http://zenodo.org/record/450489
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
Author, publisher and bookseller : a tripartite synergy in Nigerian book industry
No full textThis work is about the roles of Author, Publisher and Bookseller in Book development in
Nigeria. The paper started by delving into the history of Book Publishing in Nigeria after
which it proceeded by defining who an author, a publisher, and a bookseller is and
expatiated on the indispensable roles of these key actors in Nigerian Book Industry and in
the emerging Information Society. Furthermore, the various constraints to book
development were identified while the paper advised on how the Book Industry can be
further promoted in Nigeria. However, the paper concluded and made recommendations
on how the Book sector can help in enhancing scholarship in the country
[Report to Chief J. E. Curry, by an unknown author #2]
No full textReport to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
[Report to Chief J. E. Curry, by an unknown author #1]
No full textReport to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
Mining e-mail content for author identification forensics
No full textWe describe an investigation into e-mail content mining for author identification, or authorship attribution, for the purpose of forensic investigation. We focus our discussion on the ability to discriminate between authors for the case of both aggregated e-mail topics as well as across different email topics. An extended set of e-mail document features including structural characteristics and linguistic patterns were derived and, together with a Support Vector Machine learning algorithm, were used for mining the e-mail content. Experiments using a number of e-mail documents generated by different authors on a set of topics gave promising results for both aggregated and multi-topic author categorisation
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