206,003 research outputs found
Factorization of isometries of hyperbolic 4-space and a discreteness condition:
No full textGilman'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
Bibliographics for the 983 eprints in the live archives of E-LIS : trends and status report up to 7th July 2004, based on author-self-archiving metadata
No full textThe priority for ideas and philosophy related to "Network Theory" have been traced back and documented by Braun(2004),and credit goes to Karinthy(1929).The IT has empowered to realise it, as the most practical phenomena and it is no more a humour. The OAI (Open Archives Initiatives)and ACIS (Academic Contributor Information System)are progressive in the direction ,which may lead to realise the "Collective Genius" at global level. Focus of present study is on Author-Self-Archiving (A-S-A)Metadata of the 983 Eprints in the Live Archives of the E-LIS (EPrints of Library and Information Science),which were approved till 7th July 2004.The A-S-A Metadata was used for librametric analysis. Self-explanatory bibliographics are illustrated.The highlights include: Conference papers (34%); highest approval, June 2004 (28%); published archives (76%);not refereed (52%); not in public domain (60%); highest self-archiving-author (De Robbio, Antonella).The Nos. of EPrints having single JITA domain specifications were: Theoretical and general aspects of libraries and information(27); Information use and sociology of information(80);Users,literacy and reading(13);Libraries as physical collections(30);Publishing and legal issues(57);Management(13);Industry, profession and education(36);Information sources, supports, channels(113) ; Information treatment for information services, Information functions and techniques (101); Technical services libraries, archives and museums(25); Housing technologies(1); Information technology and library technology(92); and Inter-domainery (395) i.e. having specifications of two or more than two JITA classes
Scaphoideus lamellaris Viraktamath & Mohan, 2004, sp. nov.
No full text<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>
Scaphoideus spiculatus Viraktamath & Mohan, 2004, sp. nov.
No full text<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>
From Maigania to Malgudi : Review of Mohan G. Ramanan, RK Narayan - an introduction
No full textA review of Mohan G. Ramanan's book, RK Narayan - An IntroductionObra ressenyada: Mohan G. RAMANAN, (2013). RK Narayan - An Introduction. New Delhi: Foundation Books, 2013
From hospital contributory schemes to health cash plans: mutualism in health care in the post-war period.
No full textThe article traces the post-war history of the British hospital contributory schemes, which had developed during the inter-war years to the point where, through the accumulation of small weekly contributions from a mass membership, they provided substantial proportions of hospital income. A minority of contributory schemes remained in existence post-1948, but their subsequent development has received little attention. Some evolved into provident associations offering private health insurance; others remained committed to the provision of low-cost benefits to a blue-collar clientele, and continued to be known as hospital contributory schemes. This article outlines the principal features of the contributory schemes' contemporary history. We first explore why many schemes decided to continue in existence. The next section uses national and individual scheme records to delineate the market niche which they captured and to investigate their role in post-war health provision, relative to the state system. In particular we trace the decline of convalescent home benefit, and the gradual trend towards a more uniform benefit package, of which optical and dental grants were the most popular. We then survey patterns of membership and account for the main trends in support for cash plan products since 1950. Finally, we ask to what extent the schemes were able to retain their character as a ‘movement’ with distinctive mutualist and charitable features, particularly in the more competitive environment of the later twentieth century
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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
Individual voluntary participation in the United Kingdom: an overview of survey information
No full textThe measurement of voluntary activity is not straightforward; definitional and methodological questions affect the responses. This is true within the context of the UK but also in other countries of the developed world (Archambault 1993, Kendall and Knapp 1993, Gidron and Katz 1998, Salamon and Sokolowski 2001). The existence of definitional difficulties and ambiguities has a detrimental impact on the quality of academic research and policy-making in this sphere. Firstly, it impedes orderly collection of statistical information on volunteering in administrative sources. Also, it complicates the collection of survey information: the absence of well-understood and widely-agreed concepts of voluntarism in the public mind introduces uncertainty in people’s responses. To date, however, there has not been an attempt to compare findings of different surveys systematically. This paper aims to fill the gap in research by reviewing the available surveys for the UK. It focuses specifically on the methods used to obtain information on volunteering and the comparability of the results generated by different surveys
Input-rate modulation of gamma oscillations is sensitive to network topology, delays and short-term plasticity
No full textAbstract not availableMark D. McDonnell, Ashutosh Mohan, Christian Stricker, Lawrence M. War
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