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Dudgeodes palnius Selvakumar, Sivaramakrishnan & Jacobus, n. sp.
No full textDudgeodes palnius Selvakumar, Sivaramakrishnan & Jacobus, n. sp. Figs. 59–77. Materials examined. Holotype: Male larva, India, Tamil Nadu, Palni hills, Perumal Malai stream, 10 o 16 ’ 15.39 N, 77 o 33 ’ 15.83 E, 1484 m; 28.IX. 2013, Colls. C. Selvakumar& K. G. Sivaramakrishnan [ZSI-I/E 13]. Paratypes: Four larvae, India, Tamil Nadu, Upper Kodaiyar, 08º 31 ' 50.2 " N, 77 º 21 ' 33.0" E, 1299 m; 06.IX. 2010, Colls. C. Selvakumar & K. G. Sivaramakrishnan [ZSI-I/E 14]. Two larvae, same data as holotype [UM]; One larva, India, Tamil Nadu, Tirunelveli, Gadana river, Kallar, 0 8 o 48 '04.5" N, 77 o 18 '05.3" E, 144 m; 20.VII. 2013, Colls. C. Selvakumar & K. G. Sivaramakrishnan [UM]. Three larvae, India, Tamil Nadu, Tirunelveli, Puliyarai, Kannupulimedu, 0 8 o 56 ' 20.35 " N, 77 o 12 ' 25.74 " E, 164 m; 17.VII. 2013, Colls. C. Selvakumar & K. G. Sivaramakrishnan [UM]. One larva, India, Tamil Nadu, Tirunelveli, Ramanathi river, 0 8 o 50 ' 53.4 "N, 77 o 18 ' 51.2 " E, 237 m; 21.VII. 2013, Colls. C. Selvakumar & K. G. Sivaramakrishnan [UM]. Description. Larva. Body length up to 3.5 mm and 3.0 mm, without cerci, in female and male larvae respectively; cerci length subequal to body length. General colouration highly variable, ranging from light to dark brown; young specimens generally paler; legs light to medium brown, with femora bearing 4 characteristic maculae (Fig. 59). Head: Outer margin of head fringed with row of short, basally forked setae from in front of eyes to labrum insertion. Antennae length 1.2 times head width, flagellum with 15 segments. Dorsal part of male eyes blackish. Labrum compact, ca. 2 times wider than long, with smooth anterior emargination; dorsal face covered medially by scattered simple and long setae; anterior margin with row of small, thin setae (Fig. 60). Hypopharynx with superlinguae oval with row of long, simple setae at apex (Fig. 61). Mandibles slender with one thin seta in middle of outer margin; left mandible (Fig. 64) with outer incisor consisting of one slightly concave teeth; inner incisor with two teeth inserted transversely, one smaller and pointed, one large and rounded, prostheca small; no setae below mola; right mandible (Fig. 65) with outer incisor composed of one large tooth, slightly indented medially; inner incisor with two teeth; prostheca reduced, with appearance of cluster of thin setae; row of 7 long and thin setae below mola and several short setae above mola. Maxilla slender, with well-developed canina, two indented dentisetae and three long setae on inner apical region and cluster of long, simple setae at crown; inner margin at base of lacinia, with two feathered and long setae, one dorsally and one ventrally; maxillary palp highly reduced (Fig. 62). Submentum well-developed laterally; glossae and paraglossae partially fused; paraglossae larger than glossae; labial palp three-segmented, segments 1 and 2 clearly visible, without constriction; segment 3 ca. 2.5 times as long as wide (Fig. 63). Thorax: Prothorax and mesothorax with 4 rounded tubercles on dorsal surface; outer margin fringed with row of short, basally-forked setae. Forefemur dilated, ca. 1.5 times longer than wide; outer margin covered by stout and long setae, meeting transverse row of both long and stout pointed setae across dorsal face; without thin setae at apex; inner margin with short row of long and thin setae proximally, reaching distally to transverse row (Figs. 66, 67). Middle and hind femora similar, more slender, ca. 2 times longer than wide; dorsal and inner margins each with row of long and stout setae (Figs. 69, 70). Tibia with row of long and stout setae on inner margin, and row of long and thin setae on outer margin (Fig. 68). Tarsal claw hooked, bearing three or four blunt teeth medially, and two pointed teeth subapically; outer tooth well developed, inner one smaller; apex of claw with two rows of three or four thin setae laterally (Fig. 71). Abdomen: Terga each with moderately developed median tubercle on segments I and X, more highly developed on segments II–IX (Fig. 72). No posterolateral projections on segments II–IV, but distinct on segments V–IX (Fig. 73). Lateral margins of terga with long thin setae. Gills on segments II–V (Figs. 74–77); gill II with dorsal lamella operculate, oval and with margin entire; gills III–V with dorsal lamella incised medially; ventral lobe flabelliform, well-developed and purple on gills II–IV. Cerci with stout setae every two or three segments; setae longer than length of corresponding segment. Winged stages. Unknown. Etymology. This species is named after the Palni hills of the Western Ghats from which type specimens were collected. Diagnosis. Dudgeodes palnius, n. sp., can be distinguished from other species of Dudgeodes and from the apparently similar species of D. hutanis by the following combination of characters: (i) apex of forefemur without seta (Fig. 67); (ii) a single ventral long seta on inner margin of galea-lacinia (Fig. 62); (iii) labial palp segments 1 and 2 clearly visible, without constriction (Fig. 63); (iv) left mandible with outer incisor consisting of one slightly concave teeth (Fig. 64) and (v) right mandible with outer incisor composed of one large tooth, slightly indented medially, with a row of seven long and thin setae below mola (Fig. 65).Published as part of Selvakumar, C., Sivaramakrishnan, K. G., Jacobus, Luke M., Janarthanan, S. & Arumugam, M., 2014, Two new genera and five new species of Teloganodidae (Ephemeroptera) from South India, pp. 87-104 in Zootaxa 3846 (1) on pages 95-99, DOI: 10.11646/zootaxa.3846.1.4, http://zenodo.org/record/24988
Derlethina tamiraparaniae Selvakumar, Sivaramakrishnan & Jacobus, n. sp.
No full textDerlethina tamiraparaniae Selvakumar, Sivaramakrishnan & Jacobus, n. sp. Figs. 78–92. Materials examined. Holotype: Male larva, India, Tamilnadu, Tamiraparani river, Papanasam, 8 ° 42 ’ 37.1 ” N, 77 ° 22 ’03.1” E, 108 m, 15.V. 2013, Colls. C. Selvakumar& K. G. Sivaramakrishnan [ZSI-I/E 15]. Paratypes: Two larvae same data as holotype [UM]. One larva, India, Karnataka, Agumbe, Jogi Gunndi falls, 13 ° 29 ’ 55.95 ” N, 75 °06’ 10.85 ” E, 514 m, 02.V. 2013, Colls. C. Selvakumar& K. G. Sivaramakrishnan [UM]. Description. Larva. Body length up to 3.5 –4.0 mm and 4.0– 4.5 mm in male and female respectively, cerci slightly longer than body length. Body flattened, eyes in dorsal position brownish in male larvae (Fig. 78). General colouration greyish black dorsally; scape and flagellum of the antennae whitish, pedicel blackish; legs yellowish, femora darker, with four dark brown maculae on dorsal face, maculae sometimes merging; apex of tibiae brownish. Head: Outer margin of head fringed with row of forked setae from behind eyes to labrum insertion. Antennae length 0.9 –1.0 times head width, flagellum with 15 or 16 segments. Labrum with wide anteromedian emargination; anterior margin covered by thin setae; dorsal face with row of long and simple setae (Fig. 79). Hypopharynx with lingua broad, superlinguae quadrangular, outer margin almost straight, with row of simple and long setae at apex (Fig. 80). Mandibles slender with one thin seta in middle of outer margin; outer incisor of left mandible (Fig. 81) composed of one tooth indented basally, inner incisor with two teeth inserted transversally, one small and pointed, one large and rounded; prostheca reduced with several well-developed seta-like projections; no setae below mola; right mandible (Fig. 82) with outer incisor composed of one tooth, slightly indented medially; inner incisor with two teeth; prostheca reduced to seta-like cluster; row of three or four long, thin setae below mola and several short setae above mola. Maxilla moderately slender, with well-developed canine (Fig. 83);, two dentisetae and three long setae on inner apical portion and group of long, simple setae at crown; inner margin at base of lacinia with one feathered and long seta dorsally and two short, feathered setae ventrally (Fig. 83); maxillary palp highly reduced. Labial palp three-segmented, but articulation between segments 1 and 2 obscure; segment 3 ca. 2.0 times as long as wide at base (Fig. 84). Thorax: Prothorax and mesothorax without tubercles on dorsal face. Forefemur dilated, ca. 1.5–1.6 times longer than wide; outer margin covered by stout and long setae, and dorsal face broad and dilated with transverse row of stout and blunt setae (Fig. 85) almost reaching inner margin; inner margin with row of long and thin setae almost reaching apex of femur. Foretibia with one visible row of long and thin setae on inner margin, and another on outer margin. Middle femur more slender, ca. 2.0– 2.2 times longer than wide; dorsal and inner margins with row of long and stout setae (Fig. 86). Tibia with a row of long and stout setae on inner margin, and row of long, thin setae on outer margin. Hind leg similar, ca. 2.5 times longer than wide, outer margin not concave (Fig. 87). Tarsal claw hooked, with three or four pointed teeth medially, and two pointed teeth subapically, with inner tooth reduced; apex of claw with two rows of three or four thin setae laterally. Abdomen: Terga without median tubercles on segments I–IV, but poorly developed on segments V–IX, and absent on segment X (Fig. 88). Posterolateral projections absent from segments II–IV, present and well-developed on segments V–IX; lateral margins of terga with very long and thin setae (Fig. 89). Gills on abdominal segments II–IV (Figs. 90–92), gills II–III with ventral lobes, gill IV without ventral lobe; gills II with dorsal lamella operculate, oval and with margin entire; gills III with dorsal lamella incised medially; gills IV with dorsal lamella incised medially; ventral lobe flabelliform, well developed and purple on gills II and III. Cerci with stout setae longer than length of corresponding segment. Terminal filament highly reduced. Winged stages. Unknown. Etymology. This species named after the type locality, the Tamiraparani River. Diagnosis. Derlethina tamiraparaniae, n. sp., can be distinguished from D. eloisae by the following combination ofcharacters: (i) gill IV incised (Fig. 92); (ii) outer margin of hind femora not concave (Fig. 87) and (iii) prostheca of left mandible reduced, but with several well-developed seta-like projections (Fig. 81).Published as part of Selvakumar, C., Sivaramakrishnan, K. G., Jacobus, Luke M., Janarthanan, S. & Arumugam, M., 2014, Two new genera and five new species of Teloganodidae (Ephemeroptera) from South India, pp. 87-104 in Zootaxa 3846 (1) on pages 99-101, DOI: 10.11646/zootaxa.3846.1.4, http://zenodo.org/record/24988
Impact of Fii in recent stock market volatility / D. S. Selvakumar
No full textThe growth of relationship of interdependence between individuals and institutions across geographical and political boundaries through globalisation leads to increase of flow of investments capital. Globalisation refers to a process of increasing economic integration and growing economic interdependence between countries in the world economy. For a developing country, opening up of the stock market to FII can act as catalyst in improving efficiency of the market. As FII arrival is associated with the importation of sophisticated financial technology, adoption of the technology to the domestic environment, and greater investments in improving information processing and financial services. However these benefits should be weighted against uncertainties associated with opening up of the market. One of the major concerns is that the portfolio funds may lead to greater volatility in domestic stock prices. If foreign stock prices for any reason fluctuate the domestic prices will also respond to the fluctuations. This paper focuses on the impact of FIIs in the stock market volatility in recent times
Figure 22 from: Martynov AV, Selvakumar C, Palatov DM, Subramanian KA, Sivaramakrishnan KG, Vasanth M, Jacobus LM (2021) Overview of Indian and Nepali representatives of the Cincticostella nigra (Uéno, 1928) complex (Ephemeroptera, Ephemerellidae), with discussion about Cincticostella Allen, 1971 species complexes. ZooKeys 1040: 123-166. https://doi.org/10.3897/zookeys.1040.64280
No full textFigure 22 Larva of Cincticostella wangi Selvakumar, Martynov & Subramanian, sp. nov., paratypes A fore femur B middle femur C hind femur D stout setae of dorsal surface of fore femur E tarsal claw and tarsus F abdomen, dorsal view G terga VI–X
Comparison of experimental and computed results on arsenic and phosphorus doped polysilicon emitter bipolar transistors
No full textFIGURE 3 in Overview of Indian Hyrtanellini (Ephemeroptera: Ephemerellidae), with new species and records from related regions
No full textFIGURE 3. Larva of Serratella palatovi Martynov, Selvakumar & Jacobus, sp. nov., holotype (A, B, E–G) and regular (nontype) specimen (C, D). A, B.—mandibles; C.—labrum; D.—hypopharynx; E.—maxillary palp; F.—apical half of maxilla; G.—labium.Published as part of Martynov, Alexander V., Selvakumar, C., Subramanian, K. A., Sivaramakrishnan, K. G., Vasanth, M., Sinha, Bikramjit & Jacobus, Luke M., 2021, Overview of Indian Hyrtanellini (Ephemeroptera: Ephemerellidae), with new species and records from related regions, pp. 451-482 in Zootaxa 4975 (3) on page 457, DOI: 10.11646/zootaxa.4975.3.2, http://zenodo.org/record/480830
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
Torleya dibruensis Selvakumar, Martynov & Jacobus 2021, sp. nov.
No full textTorleya dibruensis Selvakumar, Martynov & Jacobus, sp. nov. (Figs 11–13) Type material. Holotype: larva, INDIA, Arunachal Pradesh, Papum Pare District, Dibru River, 27.147655°N, 93.74908°E, h ~ 128 m a.s.l., 22.iv.2015, Colls. K.A. Subramanian & Bikramjit Sinha — Reg. No. 5606/H13 [ZSI]. Paratypes: 1 larva, same data as holotype— Reg. No. 5607/H13 [ZSI]; 2 larvae, INDIA, Arunachal Pradesh, Lower Subansiri District, Paniya stream, 27.81791°N, 94.09502°E, h ~ 993 m a.s.l., 14.vi.2017, Colls. K.A. Subramanian & M. Vasanth — Reg. No. SRC-I/E 510 [ZSI]. Description. Late larval instar: Length of body 3.5–3.8 mm; cercus and median caudal filament subequal, each 1.5–1.8 mm. General color light brown, with variable brown shading and markings; front of head, outer and inner margins of legs and lateral margins of abdominal terga covered with long, hair-like setae (Figs 11A, 12A, B). Head: Head with one pair of distinct, blunt occipital tubercles bear small short stout setae. The same scattered stout setae cover head. Color light brown with variable brown markings; frons pale; two dark brown, rounded spots situated between occipital protuberances and compound eyes. Areas around paired ocelli yellowish. Antennal scape and pedicel light brown; flagellar segments yellowish-brown, with fine, hair-like setae at apex of each segment; hair-like setae nearly one-third length of respective segment. Clypeus and genae densely covered with long hair-like setae (Fig. 12A). Labrum (Fig. 11B) brown; anterior notch shallow and wide; anterolateral angles weakly expressed, rounded; dorsal surface with dense, transverse row of cilia-like setae. Superlinguae of hypopharynx with row of setae on anterior margin; lingua with very sparse and tiny setae on dorsal and ventral surfaces, apex convex (Fig. 11C). Mandible external margin with scattered hair-like setae basally and pair of long cilia-like setae medially (Fig. 11D, E). Maxilla (Fig. 11F) with few distal hair-like setae; palp 3-segmented, with visible articulation; spinous processes short. Labium with cilia-like setae on ventral surface; segment III of maxillary palp rounded, about one-third length of segment II (Fig. 11G). Thorax: Pronotum without distinct protuberances. Mesonotum with several small, protuberances. Mesonotum with transverse brown shading medially (Fig. 11A); tip of fore wingpads pale to white. Legs pale, distinctly flattened, especially fore femur (Fig. 13B–D). Dorsal surface of forefemur with irregular transverse row of long, pointed, stout setae proximally; outer and inner margins with rows of long hair-like setae and long, pointed, stout setae (Fig. 13A, B); dorsal surface of middle and hind femora smoky brown, with a few short stout setae; outer and inner margins with long, pointed, stout setae and long, hair-like setae (Fig. 13C, D). Tibiae of all legs distinctly wider than tarsi. Each claw with 2–3 medial denticles, palisade of four to five long subdistal denticles, and subapical seta (Fig. 13E). Abdomen: Terga with dark longitudinal medial line and lateral shading (Figs 11A, 12B). Dorsal lamella of gill III rounded, extending to middle of tergum VIII (Fig. 12B), apically rounded, with fine distal setae, brown, trilobed pattern indistinct (Fig. 13F); gill III operculate; ventral lamellae of gills III–VI bifurcate and multifoliate (Fig. 13G). Terga I–V and VIII–X mostly pale; terga VI–VII usually brown (Fig. 12B). Terga V–IX with spatulate, stout setae on posterior margins (setae progressively shorter on segments VI–VIII); terga VII and VIII with hair-like and spatulate, stout setae; terga IV–VII and IX with paired posterior protuberances, bears small stout setae with rounded apices; terga VIII and X without paired posterior protuberances; posterior protuberances very small on tergum IV and IX; largest on terga V–VII, usually bearing 4–6 short spatulate stout setae; Lateral parts of posterior margin of tergum VIII with row of spatulate, stout setae. Segments IV–IX with posterolateral projections. Segment IX distinctly narrower than segment VIII (Fig. 12B). Sterna pale, with few short, hair-like setae. Caudal filaments pale to white, with broad, dark brown band medially; tips dark brown; apex of each segment with spatulate, stout setae and fine hair-like setae. Adults. Unknown. Diagnosis. Larvae of Torleya dibruensis sp. nov. can be distinguished from other representatives of the genus by the following combination of characters: (i) head with one pair of blunt occipital tubercles; (ii) head, legs and abdomen with areas densely covered with long, hair-like setae (Figs 11A, 12A, B, 13A–D); (iii) claw with 2–3 medial denticles, palisade of four to five long subdistal denticles on the inner margin, and subapical seta (Fig. 13E); (iv) terga V–VII with paired blunt protuberances, usually bearing four to six short spatulate, stout setae (Fig. 11A); (v) gills rounded, gill III entirely cover following gills (Figs 11A, 12B, 13F, G); (vi) foreleg with irregular transverse row of long pointed, stout setae at proximal part of dorsal surface; same setae presented on outer and inner margins (Fig. 13A, B); (vii) maxillary palp present, short (Fig. 11F); (viii) labial palp segment III about one-third length of segment II (Fig. 11G). Etymology. This species is named after the type locality, Dibru River, Arunachal Pradesh. Distribution. India-China border region. Habitat. Larvae of the species were collected in rivers and large streams with cobble and sandy bottom and numerous boulders (Fig. 20D). Remarks. Torleya longforceps from Fujian, in far eastern China (Gui et al. 1999), is the only species of Torleya unknown in the larval stage, and we consider it unlikely (based on biogeography) to be conspecific with this new species, which is unknown as alates.Published as part of Martynov, Alexander V., Selvakumar, C., Subramanian, K. A., Sivaramakrishnan, K. G., Vasanth, M., Sinha, Bikramjit & Jacobus, Luke M., 2021, Overview of Indian Hyrtanellini (Ephemeroptera: Ephemerellidae), with new species and records from related regions, pp. 451-482 in Zootaxa 4975 (3) on pages 467-470, DOI: 10.11646/zootaxa.4975.3.2, http://zenodo.org/record/480830
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
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
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