155,371 research outputs found
Ooctonus nigrotestaceus Subba Rao 1989
No full textOoctonus nigrotestaceus Subba Rao, 1989 (Fig. 135) Ooctonus nigrotestaceus Subba Rao 1989: 140 (key), 141, 176 (illustrations); holotype female [BMNH], examined; type locality: Mudumalai [Wildlife Sanctuary], Tamil Nadu, India. Type material examined. Holotype female [BMNH] on card labeled: 1. “ INDIA: T. Nadu, Mudumalai A. San., 23–24.x.1979 ”; 2. “ J.S. Noyes B.M. 1979–518”; 3. “ Ooctonus nigrotestaceous [sic] sp. nov. ♀ det. B.R. Subba Rao, 1988”; 4. [inside red-bordered circle] “Holo-type”; 5. “B.M. TYPE HYM 5.34–83”. Paratype male [BMNH] on card labeled: 1. “ INDIA: T. Nadu, Shembaganu, x.1979 ”; 2. “ J.S. Noyes B. M. 1979–518”; 3. “ Ooctonus nigrotestaceus sp. nov. ♂ det. B.R. Subba Rao, 1988”; 4. [inside yellow-bordered circle] “ Paratype ”. Subba Rao (1989) erroneously indicated (p. 141): “ Paratype female same data” [as the holotype], but in fact the paratype is a male collected from a different locality [correct spelling: Shembaganur (J.S. Noyes, personal communication)] in Tamil Nadu, India. Redescription. FEMALE (holotype). Length 1700 µm [erroneously indicated as 1.8 mm by Subba Rao (1989)]. Body (Fig. 135) almost entirely black except eyes and ocelli dirty pink and gaster dark brown to black; coxae black, remainder of leg segments and also scape and pedicel light brown (metatibia slightly darker distally); flagellum brown. All funicle segments much longer than wide and more or less subequal in length (distal ones a little shorter), F1 notably longer than pedicel; mps apparently present on F4–F8, at least (impossible to verify without slide-mounting an antenna). Mesosoma with pronotum weakly reticulate; mesoscutum and scutellum with reticulate sculpture (the cells larger on mesoscutum and posterior scutellum than on anterior scutellum, those on posterior scutellum more longitudinally elongate), midlobe of mesoscutum with a median groove about as wide posteriorly as width of a notaulus, anteriorly narrowing and almost extending to anterior margin of mesoscutum; metanotum strap-like, sculptured anteriorly; propodeum weakly, yet notably, sculptured, with median and lateral carinae parallel and a little longer than median areole. Forewing approximately 2.9x as long as wide; disc with a slight brownish tinge throughout, densely setose but bare behind most of submarginal vein, with discal setae only just behind its apex along posterior margin of wing, slightly truncate apically. Metacoxa with strong reticulate sculpture. Petiole smooth, shining, much longer than metacoxa; gaster much shorter than mesosoma; ovipositor not exserted beyond apex of gaster. Description. MALE (paratype, previously undescribed, see “Type material examined” above and also “Comments” below). Similar to female except for the normal sexually dimorphic features. Diagnosis. Ooctonus nigrotestaceus differs from all other known Oriental species of the genus that have the midlobe of mesoscutum mediolongitudinally divided by an almost complete median groove (at least 0.5x length of mesoscutum), such as O. flavipodus Subba Rao, O. lapen sp. n., and O. sinensis Subba Rao, in having the combination of black metacoxae and the propodeum with median and lateral carinae long and parallel, and lateral carinae extending to the anterior margin of propodeum. In O. sinensis, which also has a black metacoxa, the lateral carinae on the propodeum are not parallel with the median carina and do not extend to the anterior margin of propodeum, and the petiole is longitudinally striate (smooth in O. nigrotestaceus). Distribution. ORIENTAL: India (Tamil Nadu). Hosts. Unknown. Comments. Subba Rao (1989) apparently somewhat mixed the descriptions, especially of the color, of O. nigrotestaceus and O. sinensis (p. 141), also (and particularly) in the second couplet of his key to the Oriental species of Ooctonus (p. 140).Published as part of Triapitsyn, Serguei V., 2010, Revision of the Palaearctic species and review of the Oriental species of Ooctonus (Hymenoptera: Mymaridae), with notes on extralimital taxa 2381, pp. 1-74 in Zootaxa 2381 (1) on pages 67-68, DOI: 10.11646/zootaxa.2381.1.1, http://zenodo.org/record/531169
Acmopolynema malabaricum Subba Rao 1989
No full text<i>Acmopolynema malabaricum</i> Subba Rao 1989 <p>(Figs 37, 56, 57)</p> <p> <i>Acmopolynema malabarica</i> Subba Rao 1989: 153. Type locality: Periyar Animal Sanctuary, Kerala, India (holotype female [BMNH], not examined).</p> <p> <i>Acmopolynema malabaricum</i> Subba Rao: Hayat & Anis 1999: 303.</p> <p>Type material examined Paratype female (on slide, BMNH): INDIA, Kerala, Periyar Animal Sanctuary, 5–15.x.1979, J.S. Noyes.</p> <p>Diagnosis</p> <p> Member of the <i>orientale</i> species group. FEMALE. This species is characterized by a long antenna (Fig. 56), the forewing (Fig. 37) with only one (apical) brown spot and a faint infumation in the middle of the blade, short "V"-shaped submedial carinae on the propodeum (Fig. 57), and a long ovipositor which is markedly exserted beyond the gastral apex (by about 1/5 of the total length of the ovipositor).</p> <p>MALE. Unknown.</p> <p>Distribution India.</p>Published as part of <i>TRIAPITSYN, SERGUEI V. & BEREZOVSKIY, VLADIMIR V., 2007, Review of the Oriental and Australasian species of Acmopolynema, with taxonomic notes on Palaeoneura and Xenopolynema stat. rev. and description of a new genus (Hymenoptera: Mymaridae), pp. 1-68 in Zootaxa 1455 (1)</i> on pages 32-33, DOI: 10.11646/zootaxa.1455.1.1, <a href="http://zenodo.org/record/5077726">http://zenodo.org/record/5077726</a>
Ooctonus flavipodus Subba Rao 1989
No full textOoctonus flavipodus Subba Rao, 1989 (Fig. 115) Ooctonus flavipodus Subba Rao 1989: 140 (key), 143, 172 (illustration); holotype female [BMNH], not examined; type locality: Sangu, Taplejung District, Mechi Zone, Nepal [erroneously indicated as “ Burma ” (Myanmar) by Subba Rao (1989: 143)]. Type material examined. Paratypes: 1 female [BMNH] on point labeled: 1. “TAPLEJUNG DISTR., Sangu, c 6200'”, 2. “Mixed vegetation by stream in gully. xi.1961 – i.1962.”, 3. “BRIT. MUS. East Nepal Exp. 1961– 62.”, 4. “ R.L. Coe Coll. B.M.1962–177”, 5. “ Ooctonus flavipodus sp. nov. ♀ det. B.R. Subba Rao, 1988”, 6. [inside yellow-bordered circle] “Para-type”; 1 male [BMNH] on point labeled: 1. “TAPLEJUNG DISTR., below Sangu”, 2. “By stream in shady ravine. c. 6000' 30.x.1961.”, 3. “BRIT. MUS. East Nepal Exp. 1961– 62.”; 4. “ Ooctonus flavipodus sp. nov. ♂ det. B.R. Subba Rao, 1988”, 5. [inside yellow-bordered circle] “ Paratype ”. The female paratype specimen lacks one fore leg, one middle leg (except for a coxa), and both hind legs, and the metasoma is detached from the rest of the body and glued on the point separately (Fig. 119); the male paratype specimen lacks a part of one of the antennae. Redescription. FEMALE (paratype). Length approximately 1350 µm. Body (Fig. 115) almost entirely dark brown except eyes and ocelli dirty pink and petiole light brown; scape, pedicel, and F1–F3 light brown, F4–F8 and clava dark brown; legs light brown except distal tarsomeres a little darker (brown). Scape a little shorter than clava; all funicle segments much longer than wide and more or less subequal in length (F2 and F3 a little longer and F8 a little shorter), F1 longer than pedicel; mps apparently present at most on F4–F8 (but that is impossible to verify without slide-mounting of an antenna from the holotype or the paratype). Mesosoma with pronotum smooth; mesoscutum and anterior scutellum with reticulate sculpture (the cells larger on mesoscutum than on anterior scutellum), midlobe of mesoscutum with a median groove about as wide posteriorly as width of a notaulus, anteriorly narrowing and extending to about half length of mesoscutum; posterior scutellum with weak sculpture only at anterior and lateral margins, otherwise smooth and shining, metanotum strap-like, smooth, shining; propodeum mostly smooth, with median carina about as long as median areole, lateral carinae not parallel to median carina, each split anteriorly as a short, broadly Y-shaped carina. Forewing approximately 3.0x as long as wide; disc with a slight brownish tinge throughout, densely setose but bare behind most of submarginal vein, with discal setae only just behind its apex along posterior margin of the wing, slightly truncate apically. Petiole mostly smooth except for a few longitudinal striations; gaster shorter than mesosoma; ovipositor not exserted beyond apex of gaster. MALE (paratype). Similar to female except for the normal sexually dimorphic features. Diagnosis. Ooctonus flavipodus differs from O. lapen sp. n., the only other known Oriental species of the genus that has all the coxae lightly colored, by the contrastingly lighter color of F1–F3 of the female antenna relative to much darker color of other funicle segments, whereas in O. lapen all funicle segments are dark brown. Distribution. ORIENTAL: Nepal. Hosts. Unknown. Comments. One female Ooctonus sp. in UCRC (THAILAND. PHETCHABURI, Kaeng Krachan National Park, 12°49.243’N 99°22.256’ E, 890 m, 24–26.vi.2008, B.V. Brown) is very similar to O. flavipodus except for having only F1 of the antennal funicle yellowish while F2–F8 are contrastingly dark brown. It is possible that this specimen may be just a mere color variation of O. flavipodus.Published as part of Triapitsyn, Serguei V., 2010, Revision of the Palaearctic species and review of the Oriental species of Ooctonus (Hymenoptera: Mymaridae), with notes on extralimital taxa 2381, pp. 1-74 in Zootaxa 2381 (1) on pages 61-62, DOI: 10.11646/zootaxa.2381.1.1, http://zenodo.org/record/531169
Ooctonus himalayus Subba Rao 1989
No full textOoctonus himalayus Subba Rao, 1989 (Figs 116–125) Ooctonus himalayus Subba Rao 1989: 140 (key), 142, 171 (illustrations), 173 (illustration); holotype female [BMNH], not examined; type locality: Manali, Himachal Pradesh, India. Type material examined. Paratypes: 1 female [BMNH] on slide labeled: 1. “1988 Para-type [inside yellowbordered circle glued onto the label] ♀ Ooctonus himalayus sp. nov. B.R. Subba Rao det”, 2. “ INDIA: Him. Pr. Manali 12.X.1979 Z. Boucek 18 Mar 87”; 3 females [BMNH] on individual cards/pins labeled: 1. “ INDIA, Him. Pr. Manali 9.X.79 [except 1 female 10.X.79] Bouček”; 2. “ Ooctonus himalayus sp. nov. ♀ det. B.R. Subba Rao, 1988”; 3. [inside yellow-bordered circle] “Para-type”. Material examined. NEPAL. BAGMATI, Lalitpur District, Phulcoki, 2600 m: 14.x.1983, A. Smetana [2 ♀, CNCI, UCRC]; 14.x.1983, A. Smetana, I. Löbl [1 ♂, CNCI]. DHAWALAGIRI (DHAULAGIRI), Goropani Pass (also spelled as Ghoropani, Gorepani, or Ghorepani), 2850 m, 5.x.1983, A. Smetana [1 ♀, CNCI]. Redescription. FEMALE. Body length (one card-mounted specimen from Nepal measured) about 1300 µm. Body almost entirely dark brown to almost black except eyes and ocelli dirty pink, petiole pale to yellowish brown, and apical gastral terga brown; scape and pedicel mostly light brown, funicle brown to dark brown, clava dark brown; legs mostly light brown except coxae dark brown, femora and metatibia partially brown, and apical tarsomeres brown. Head as in Fig. 117. Antenna (Fig. 116) with scape a little longer than clava, radicle about 0.2x length of scape, remainder of scape 5.0–5.2x as long as wide, a little wider medially than basally or apically; pedicel shorter than F1; all funicle segments much longer than wide and more or less subequal in length (F2 and F5 slightly longer, F7 and particularly F8 slightly shorter), F5–F8 each with 2 mps; clava 3.4–3.5x as long as wide, almost as long as combined length of F6–F8, with 7 mps. Mesosoma (Fig. 118) with pronotum weakly sculptured; mesoscutum and anterior scutellum with reticulate sculpture (sometimes notably less pronounced on the posterior half or so of midlobe of mesoscutum), posterior scutellum with weak sculpture only at anterior and lateral margins, otherwise mostly almost smooth (or with very inconspicuous sculpture), midlobe of mesoscutum without a median groove or at most with a very short median groove just at posterior margin of mesoscutum (less than 0.1x its length); metanotum smooth, shining, with posterior margin broadly rounded; propodeum (Fig. 119) mostly smooth, with median carina short, subparallel to long lateral carinae that extend to anterior margin of propodeum. Forewing (Fig. 120) 2.7–2.8x as long as wide; disc with a slight brownish tinge throughout (more pronounced behind apex of submarginal vein and the very base of marginal vein), densely setose but bare behind base of submarginal vein, slightly truncate apically; longest marginal seta about 0.2x greatest width of wing. Hind wing (Fig. 120) 15–16x as long as wide; disc with a slight brownish tinge and densely setose throughout; longest marginal seta 1.8–2.0x greatest width of wing. Pro- and mesocoxae smooth, metacoxa with strong reticulate sculpture. Petiole 3.8–4.0x as long as wide, a little wider apically than basally, smooth, about 1.3x as long as metacoxa; ovipositor occupying 0.6–0.8x length of gaster, slightly exserted beyond apex of gaster (by 0.1–0.14x own length), 0.9–1.0x length of metatibia. Description. MALE (previously undescribed, specimen from Nepal). Similar to female except for the normal sexually dimorphic features and the following [body length is impossible to measure because of the way the detached head is slide-mounted]. Antenna (Fig. 121) with scape plus radicle light brown to brown, about 4.4x as long as wide, pedicel brown, flagellum dark brown; posterior third or so of midlobe of mesoscutum almost smooth, propodeum (Fig. 122) without median carina; forewing (Fig. 123) about 2.9x as long as wide; hind wing as in Fig. 124; genitalia as in Fig. 125. Diagnosis. Ooctonus himalayus is the only described Oriental species of Ooctonus that either lacks a median groove on the midlobe of the mesoscutum or at most has a very short median groove just at its posterior margin (less than 0.1x length of mesoscutum). Distribution. ORIENTAL: India (Himachal Pradesh), and Nepal *. Hosts. Unknown.Published as part of Triapitsyn, Serguei V., 2010, Revision of the Palaearctic species and review of the Oriental species of Ooctonus (Hymenoptera: Mymaridae), with notes on extralimital taxa 2381, pp. 1-74 in Zootaxa 2381 (1) on pages 62-64, DOI: 10.11646/zootaxa.2381.1.1, http://zenodo.org/record/531169
Aphidius smithi Sharma & Subba Rao 1959
No full textAphidius smithi Sharma & Subba Rao, 1959 (Fig. 42) Material examined. Acyrthosiphon pisum on Medicago sativa, KE – Bistun (34°30′54″N 47°22′17″E, 1312 m), 27.v.2010, 9 JJ 16 ♀♀; KD – Sanandaj (35°16′34″N 47°01′18″E, 1390 m), 12.ix.2004, 3 JJ 7 ♀♀; KD – Kamyaran (34°48′14″N 46°54′43″E, 1451 m), 13.ix.2004, 2 ♀♀; HA – Hamadan (34°48′05″N 48°28′48″E, 1832 m), 15.ix.2004, 1 J 4 ♀♀.Published as part of Nazari, Yaser, Zamani, Abbas Ali, Masoumi, Seyyed Mohammad, Rakhshani, Ehsan, Petrović-Obradović, Olivera, Tomanović, Snežana, Starý, Petr & Tomanović, Željko, 2012, Diversity and host associations of aphid parasitoids (Hymenoptera: Braconidae: Aphidiinae) in the farmlands of western Iran, pp. 559-584 in Acta Entomologica Musei Nationalis Pragae 52 (2) on page 564, DOI: 10.5281/zenodo.533264
Dissociation kinetics of an enzyme-inhibitor system using single-molecule force measurements
No full textEssa Mayyas, Margarida Bernardo, Lindsay Runyan, Anjum Sohail, Venkatesh Subba-Rao, Mircea Pantea, Rafael Fridman, and Peter M. Hoffman
New insights into phase distribution, phase composition and disorder in Y2(Zr,Sn)2O7 ceramics from NMR spectroscopy
No full textThe authors would like to thank EPSRC for DTA awards to MM and SS, and for experimental and computational support (EP/E041825/1, EP/J501542/1 and EP/F018096/1). We thank EaStCHEM for computational support through the EaStCHEM Research Computing Facility.A combination of 89Y and 119Sn NMR spectroscopy and DFT calculations are used to investigate phase evolution, local structure and disorder in Y2Zr2−xSnxO7 ceramics, where a phase change is predicted, from pyrochlore to defect fluorite, with increasing Zr content. The ability of NMR to effectively probe materials that exhibit positional and compositional disorder provides insight into the atomic-scale structure in both ordered and disordered phases and, by exploiting the quantitative nature of the technique, we are able to determine detailed information on the composition of the phase(s) present and the average coordination number (and next-nearest neighbour environment) of the cations. In contrast to previous studies, a more complex picture of the phase variation with composition emerges, with single-phase pyrochlore found only for the Sn end member, and a single defect fluorite phase only for x = 0 to 0.6. A broad two-phase region is observed, from x = 1.8 to 0.8, but the two phases present have very different composition, with a maximum of 13% Zr incorporated into the pyrochlore phase, whereas the composition of the defect fluorite phase varies throughout. Preferential ordering of the anion vacancies in the defect fluorite phase is observed, with Sn only ever found in a six-coordinate environment, while remaining vacancies are shown to be more likely to be associated with Zr than Y. Our findings are then discussed in the light of those from previous studies, many of which utilize diffraction-based approaches, where, in most cases, a single phase of fixed composition has been assumed for the refinement procedure. The significant and surprising differences encountered demonstrate the need for complementary approaches to be considered for a detailed and accurate picture of both the long- and short-range structure of a solid to be achieved.Peer reviewe
Inaugural Address by Prime Minister of India P. V. Narasimha Rao
No full textText of the inaugural address by Indian Prime Minister P. V. Narasimha Rao at the CGIAR Mid Term Meeting, May 1994
A Fisher-Rao metric for paracatadioptric images of lines
No full textIn a central paracatadioptric imaging system a perspective camera takes an image of a scene reflected in a paraboloidal mirror. A 360° field of view is obtained, but
the image is severely distorted. In particular, straight lines in the scene project to circles in the image. These distortions make it diffcult to detect projected lines using standard image processing algorithms. The distortions are removed using a Fisher-Rao metric which is defined on the space of projected lines in the paracatadioptric image. The space of projected lines is divided into subsets such that on each subset the Fisher-Rao metric is closely approximated by the Euclidean metric. Each subset is sampled at the vertices of a square grid and values are assigned to the sampled points using an adaptation of the trace transform. The result is a set of digital images to which standard image processing algorithms can be applied.
The effectiveness of this approach to line detection is illustrated using two algorithms, both of which are based on the Sobel edge operator. The task of line detection is reduced to the task of finding isolated peaks in a Sobel image. An experimental comparison is made between these two algorithms and third algorithm taken from the literature and
based on the Hough transform
Application of the Fisher-Rao metric to ellipse detection
No full textThe parameter space for the ellipses in a two dimensional image is a five dimensional manifold, where each point of the manifold corresponds to an ellipse in the image. The parameter space becomes a Riemannian manifold under a Fisher-Rao metric, which is derived from a Gaussian model for the blurring of ellipses in the image. Two points in the parameter space are close together under the Fisher-Rao metric if the corresponding ellipses are close together in the image. The Fisher-Rao metric is accurately approximated by a simpler metric under the assumption that the blurring is small compared with the sizes of the ellipses under consideration. It is shown that the parameter space for the ellipses in the image has a finite volume under the approximation to the Fisher-Rao metric. As a consequence the parameter space can be replaced, for the purpose of ellipse detection, by a finite set of points sampled from it. An efficient algorithm for sampling the parameter space is described. The algorithm uses the fact that the approximating metric is flat, and therefore locally Euclidean, on each three dimensional family of ellipses with a fixed orientation and a fixed eccentricity. Once the sample points have been obtained, ellipses are detected in a given image by checking each sample point in turn to see if the corresponding ellipse is supported by the nearby image pixel values. The resulting algorithm for ellipse detection is implemented. A multiresolution version of the algorithm is also implemented. The experimental results suggest that ellipses can be reliably detected in a given low resolution image and that the number of false detections
can be reduced using the multiresolution algorithm
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