185,451 research outputs found

    Responding to Indo-Pacific rivalry: Australia, India and middle power coalitions

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    In this Analysis, Lowy Institute International Security Program Director Rory Medcalf and Nonresident Fellow C. Raja Mohan argue that Chinese assertiveness and uncertainties about America’s role in Indo-Pacific Asia are causing middle powers to look for alternative approaches to regional security. The Analysis argues that enhanced security cooperation between Indo-Pacific middle powers should be extended to the creation of “middle-power coalitions” in the region. Key findings China’s assertiveness and uncertainties about America’s response are causing middle powers in Indo-Pacific Asia to looking beyond traditional approaches to security Cooperation between Indo-Pacific middle power coalitions would build regional resilience against the vagaries of US-China relations India and Australia are well placed to form the core of middle power coalition buildin

    Arsenic removal from household drinking water by biochar and biochar composites: A focus on scale-up

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    Arsenic (As) is a metalloid present in environmental matrixes worldwide. Arsenic concentrations vary in natural waters and depend on local factors such as geology, hydrology, and geochemical characteristics of the aquifer (Akter et al., 2005). The WHO recommends a maximum arsenic concentration 10μg L 1 for drinking water or less, but natural groundwater concentrations of >10μg L 1 have been reported in over 120 countries, with the highest concentrations in Argentina, Bangladesh, Chile, China, Hungary, India, Mexico, Nepal, Romania, Taiwan, Vietnam, and USA. The occurrence, distribution, and origin of As in water have received a lot of attention in the last two decades, including comprehensive books and papers.Fil: Alchouron, Jacinta. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Botánica General; ArgentinaFil: Bursztyn Fuentes, Amalia Lara. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Tecnología de Recursos Minerales y Cerámica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Tecnología de Recursos Minerales y Cerámica; ArgentinaFil: Musser, Abigail. Mississippi State University; Estados UnidosFil: Vega, Andrea Susana. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Botánica General; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Mohan, Dinesh. Jawaharlal Nehru University; IndiaFil: Pittman, C. U.. Mississippi State University; Estados UnidosFil: Mlsna, T. E.. Mississippi State University; Estados UnidosFil: Navarathna, C.. Mississippi State University; Estados Unido

    Scaphoideus malaisei Viraktamath & Mohan, 2004, sp. nov.

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    Scaphoideus malaisei sp. nov. Figs 125–130. Coloration similar to that of sculptus but the transverse bands on pronotum not very distinctive. Face with a series of six transverse brown stripes on upper part. Head triangularly produced in front with bluntly angled apex. Vertex shorter than inter­ocular width. Male genitalia: Pygophore longer than high, caudal lobe rounded. Subgenital plate triangular, elongate, 4 times as long as broad at base, with four long setae near base, three forming an oblique line. Style with well­developed preapical lobe, broad at proximal region, apophysis long, distally narrowed, slightly curved laterally. Connective with stem longer than arms, with a dorsal keel, paraphyses running parallel to each other in proximal half then divergent, in lateral view curved caudo­dorsally, in distal 0.33, with serrated lateral margin subapically. Aedeagus broad at base, shaft narrowed distally with a pair of denticles at apex in dorsal margin, with ventral and lateral furrows, gonopore subapical, dorsal apodeme as long as shaft in lateral aspect. Measurements: Male 5.50 mm long, 1.37 mm wide across eyes. Material examined: MYANMAR: Holotype ɗ, N.E. BURMA: Kambaiti, 7000 ft,(2123 m), 18.v. 1935, R. Malaise, Brit. Mus., 1935 – 630 (BMNH). Remarks: S. malaisei externally resembles sculptus. It can be readily distinguished from sculptus and other species of Scaphoideus by the structure of the aedeagus.Published as part of Viraktamath, C. A. & Mohan, G. S., 2004, A revision of the deltocephaline leafhopper genus Scaphoideus (Hemiptera: Cicadellidae) from the Indian subcontinent, pp. 1-48 in Zootaxa 578 on page 30, DOI: 10.5281/zenodo.16910

    Factorization of isometries of hyperbolic 4-space and a discreteness condition:

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    Gilman's NSDC condition is a sufficient condition for the discreteness of a two generator subgroup of PSL(2,C). We address the question of the extension of this condition to subgroups of isometries of hyperbolic 4-space. While making this new construction, namely the NSDS condition, we are led to ask whether every orientation preserving isometry of hyperbolic 4-space can be factored into the product of two half-turns. We use some techniques developed by Wilker to first, define a half-turn suitably in dimension 4 and then answer the former question. It turns out that defining a half-turn in this way in any dimension n enables us to generalize some of Gilman's theorems to dimension greater than or equal to 4. We also give an exposition on part of Wilker's work and give new proofs for some of his results.Ph.D.Includes bibliographical references (p. 52-53)by Karan Mohan Pur

    A new India for a changing Europe : what to expect from India's foreign policy

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    C. Raja Mohan ; issuing department: Division for International Cooperation, Department for Asia and the Pacifi

    Down Memory Lane Preface

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    This is a tribute to all of you, the elders, who served CMFRI in various capacities in the past 60 years to make this institution a standing testimony to the devotion and dedication of the numerous scientists, technical and administrative staff who made this institution stand apart Mohan Joseph Modayil and shine amidst the best marine fisheries institutions in the world. Hats off to each one of you for what you have done for CMFRI, the fruits of which are here to stay. My personal gratitude to all of you for all the support and encouragement you have been giving me in the past seven years and I will always cherish the time I spent in CMFRI, contributing my small mite to the development of this premier institution. I had requested several of our former colleagues to write a few words about their memories in CMFRI. Many responded promptly, a few thought it was not worth writing. I thank you all for putting in so few words so much of feelings and emotions which truly reflect what CMFRI means to each one of you. And let me assure you all that each one of you mean so much for each one of us passing through the corridors of this great institution, reminding us that there are miles to go before we sleep, miles to go before we sleep. Thank you all

    Scaphoideus lamellaris Viraktamath & Mohan, 2004, sp. nov.

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    <i>Scaphoideus lamellaris</i> sp. nov. <p>Figs 118–124.</p> <p> Coloration similar to <i>S. sculptus</i> sp. nov. but anterior submarginal chocolate brown band widened medially.</p> <p>Head narrower than pronotum. Vertex slightly shorter than inter­ocular width.</p> <p> <i>Male genitalia</i>; Pygophore longer than high; caudal lobe rounded, ventral margin slightly convex. Subgenital plate triangular, 3.5 times as long as width at base, with apical extension; four elongate setae near base, of which three form an oblique row. Style broad at base, preapical lobe slightly curved, distally narrowed. Connective with stem longer than arms, paraphyses bladelike, of uniform width for most of length, in distal 0.33 narrowed, apices slightly overlapping each other, in lateral aspect curved and strongly narrowed distally especially beyond midlength. Aedeagus compressed laterally, in lateral aspect widest at midlength, pointed distally, with two ventrally directed lamellae, gonopore subapical.</p> <p> <i>Measurements</i>: Male 5.10 (approximately) mm long, 1.20 mm wide across eyes.</p> <p> <i>Material examined</i>: MYANMAR: holotype ɗ, Upper Burma: Nam Tama Valley, 26.viii.1938, R. Kaulback, B.M. 1939–741, 3000 ft (910 m), Lat. N 27o 42’, Long. E 97o 54’ (BMNH).</p> <p> <i>Remarks</i>: <i>S. lamellaris</i> externally resembles <i>sculptus,</i> from which it can be readily distinguished by the absence of basal aedeagal processes and by the presence of ventrally directed lamellate aedeagal processes.</p>Published as part of <i>Viraktamath, C. A. & Mohan, G. S., 2004, A revision of the deltocephaline leafhopper genus Scaphoideus (Hemiptera: Cicadellidae) from the Indian subcontinent, pp. 1-48 in Zootaxa 578</i> on pages 29-30, DOI: <a href="http://zenodo.org/record/169102">10.5281/zenodo.169102</a&gt

    Scaphoideus spiculatus Viraktamath & Mohan, 2004, sp. nov.

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    <i>Scaphoideus spiculatus</i> sp. nov. <p>Figs 186–192.</p> <p> Coloration similar to that in <i>sculptus</i>. Head narrower than pronotum, triangularly produced obtusely rounded in front. Vertex shorter than inter­ocular width.</p> <p> <i>Male genitalia</i>: Pygophore longer than high, caudal lobe rounded distally, ventral margin convex. Subgenital plate triangular, four times as long as width at base, with three long setae at base in an oblique row. Style broad at base, preapical lobe well­developed, apophysis narrowed towards apex, laterally strongly curved. Connective with stem longer than arms, with a dorsal keel, paraphyses arising from broad base, divergent caudally, apically narrowed with inner margin serrated near apex. Aedeagus L­shaped, shaft spatulate, ventrally grooved along midline, dorsal apodeme well­developed, platelike, distally bilobed, gonopore subapical.</p> <p> <i>Measurements</i>: Male 5.20–5.40 mm long, 1.25–1.27 mm wide across eyes.</p> <p> <i>Material examined</i>: MYANMAR: holotype ɗ, Burma: Mishmi Hills, Dingliang, 2450 ft (743m), 13.iii.1935, M Steel, Brit. Mus. 1935­312 (BMNH). Paratype: 1ɗ, MYAN­ MAR: Upper Burma: Nam Tama Valley, 26.viii.1938, R. Kaulback, B.M. 1938­741, Alt. 3000ft (910m), lat. N 27o 42’, Long. 97o 54’ (BMNH).</p> <p> <i>Remarks</i>: Externally <i>spiculatus</i> resembles <i>ornatus</i> but is closer to <i>S. maai</i> Kitbamroong and Freytag from which it differs in having a spatulate aedeagal shaft and a broad platelike dorsal apodeme.</p>Published as part of <i>Viraktamath, C. A. & Mohan, G. S., 2004, A revision of the deltocephaline leafhopper genus Scaphoideus (Hemiptera: Cicadellidae) from the Indian subcontinent, pp. 1-48 in Zootaxa 578</i> on pages 39-40, DOI: <a href="http://zenodo.org/record/169102">10.5281/zenodo.169102</a&gt

    Scaphoideus varna Viraktamath & Mohan, 2004, sp. nov.

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    Scaphoideus varna sp. nov. Figs 206–212. Vertex yellow with brown angular submarginal band, a median “flying falcon” ­shaped spot with a median yellow marking. Face chocolate­brown, frontoclypeus laterally yellow. Pronotum, scutellum, basal 0.33 of front wings chocolate brown with dispersed hyaline or white markings (similar to bicoloratus, Fig. 20), posterior margin of this patch of front wing forming a transverse line. One spot behind eye on pronotum, two pairs of lateral marginal spots to scutellum and apex white. Oblique veins on costa of front wing, veins of apical cells, 0.75 of median and inner cell transparent dark fuscous. Pleura chocolate brown except for white spot on meso­ and metapleura. Head wider than pronotum, conically produced in front. Vertex as long medially as wide between eyes, a median faint ridge separating lateral depressed compartments. Male genitalia: Caudal 0.25 of pygophore dark brown, caudally rounded, ventral margin convex. Subgenital plate slender, elongate, 3.6 times longer than greatest width near base, five stout setae in an oblique row near basal 0.25. Style with well­developed preapical lobe, apophysis short with bifid apex. Connective with short arms and long stem; paraphyses slender, longer than connective, apically acuminate. Aedeagus boat­shaped, connected to connective by membranous structure, shaft strongly compressed, bladelike, apex attenuated, strongly ventrally curved, dorsal apodeme well­developed, gonopore at 0.66 length on ventral margin. Measurements: Male 3.90–4.40 mm long, 1.05–1.12 mm wide across eyes. Material examined: MYANMAR: holotype ɗ, Bhamo, Birmania, Fea, ix. 1885, 169 (the number on a separate blue coloured label) (MCSG). Paratype: 1 ɗ, data as holotype but without the number label and collected vi. 1885; 1 specimen (sex? abdomen missing) same data but collected on vi. 1986 (MCSG). Remarks: Both S. varna and S. bicolorata sp. nov. resemble each other externally and have very distinctive coloration. They also share the compressed aedeagus and the slender elongate needlelike paraphyses. S. varna does not bear any process on the aedeagal shaft whereas bicolorata has a pair of slender, elongate, apical processes.Published as part of Viraktamath, C. A. & Mohan, G. S., 2004, A revision of the deltocephaline leafhopper genus Scaphoideus (Hemiptera: Cicadellidae) from the Indian subcontinent, pp. 1-48 in Zootaxa 578 on pages 43-45, DOI: 10.5281/zenodo.16910

    Scaphoideus zhangi Viraktamath & Mohan, 2004, sp. nov.

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    Scaphoideus zhangi sp. nov. Figs 218–227. Coloration like that of S. coloratus and similar to that found in S. hirsutus. Head slightly wider than pronotum, as long as inter­ocular width. Front wing venation as in Fig. 226. Male genitalia: Pygophore rather rectangular, with a small anterior apodeme, caudal margin truncate, produced into spinelike process ventrally, dorsal margin with a long spine like pigmented process at the point of articulation with tenth segment, a few stout, long setae in caudal 0.33 and marginal shorter setae. Subgenital plate triangular, with a lateral submarginal row of long setae and marginal hairlike setae, especially those at caudal end long. Style, pigmented, with a slender long, apophysis with transverse rugae, preapical lobe well­developed. Connective Y­shaped, pigmented, stem longer than arm. Paraphyses convergent, in ventral view, twisted at apical 0.25, articulated proximally with both aedeagus and connective. Aedeagus tubular, dorsal apodeme well­developed, shaft slightly narrowed distally and apex curved anteriorly, gonopore apical. Female genitalia: Hind margin of seventh sternum broadly produced medially with a median notch. Measurements: Male 4.5–4.6 mm long, 1.1–1.2 mm wide across eyes. Female 4.9 mm long, 1.3 mm wide across eyes. Material examined: INDIA: holotype ɗ, Meghalaya: Lunglei, 21.xi. 1981, C.S. Wesley (UAS). Paratype: INDIA: 1 ɗ, Meghalaya, 762 m, 4.xi. 1981, S. Viraktamath; 1 Ψ, data as in ɗ but collected by C.A. Viraktamath; 1 Ψ, West Bengal: Teesta, 214 m, 28.x. 1981, C.A. Viraktamath (BMNH, UAS). Remarks: Externally S. zhangi resembles S. sabourensis but differs from it in having a longer dorsal spine on the pygophore at the point of articulation with the tenth segment, caudal margin truncate and produced ventrally into a spinelike process, and paraphyses strongly twisted. The new species is named after Dr Zang Yalin, North­western Agricultural University, Yangling, Shaanxi, China, in recognition of his good work on Chinese leafhoppers.Published as part of Viraktamath, C. A. & Mohan, G. S., 2004, A revision of the deltocephaline leafhopper genus Scaphoideus (Hemiptera: Cicadellidae) from the Indian subcontinent, pp. 1-48 in Zootaxa 578 on pages 45-47, DOI: 10.5281/zenodo.16910
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