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  • taxonomy  (2)
  • Aging osteopenia  (1)
  • 1995-1999  (3)
  • 1935-1939
  • 1
    Electronic Resource
    Electronic Resource
    Age changes of spine density in posterior-anterior and lateral projections in normal women (1995)
    Springer
    Calcified tissue international 56 (1995), S. 201-205 
    Details
    ISSN: 1432-0827
    Keywords: Bone densitometry ; Bone ; Osteoporosis ; Aging osteopenia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Abstract Bone mineral density (BMD) was measured in 353 healthy white women using dual-energy X-ray absorptiometry (DXA). Measurements were made of both the posterior-anterior (PA) and lateral spine, as well as the proximal femur (neck and Ward's triangle). From age 50 to 80 years, the BMD of the PA spine and femur neck BMD had an 18% diminution (0.6%/year), and BMD of the lateral spine showed about a 35–40% decline (1.4%/year). The Ward's triangle region of the femur was not quite as decreased (30% or 1.1%/year). The BMD decrease associated with aging did not differ as much among sites when expressed relative to the intrapopulation variation rather than as a percentage. The Z-score for PA spine and femur neck BMD (-1.1) was significantly different than that for lateral spine BMD (-1.6); Ward's triangle was intermediate (-1.3), i.e., the lateral spine still showed the highest sensitivity to aging. However, the ability to detect age changes in an individual subject can be increased only if the precision error for lateral spine BMD is not increased to a greater extent than the sensitivity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00298610
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  • 2
    Electronic Resource
    Electronic Resource
    Anostraca of the Indian Subcontinent (1995)
    Springer
    Hydrobiologia 298 (1995), S. 287-293 
    Details
    ISSN: 1573-5117
    Keywords: India ; Pakistan ; Sri Lanka ; species richness ; taxonomy ; zoogeography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract There are 15 species of Anostraca belonging to 6 genera on the Indian Subcontinent. These are:Artemia sp. (reportedly a bisexual form of undetermined species);Artemia parthenogenetica Bowen & Sterling, 1978;Branchinecta orientalis Sars, 1901;Branchinella hardingi (Qadri & Baqai, 1956);Branchinella kugenumaensis (Ishikawa, 1895);Branchinella ornata Daday, 1910;Branchipodopsis acanthopenes (Malhotra & Duda, 1970);Branchipodopsis affinis Sars, 1901;Branchipus schaefferi Fischer, 1834;Chirocephalus priscus (Daday, 1910);Streptocephalus dichotomus Baird, 1860;Streptocephalus echinus Bond, 1934;Streptocephalus longimanus Bond, 1934;Streptocephalus simplex Gurney, 1906;Streptocephalus spinifer Gurney, 1906. Comparing numbers of species for southern India with other reasonably well studied areas, demonstrated that anostracan species richness is higher in the climatically more varied temperate regions than it is in the more uniform tropics. Tropical South India has six species compared to 13 in Arizona (USA), 19 in California (USA), 10 in Morocco, and 14 in Italy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00033823
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  • 3
    Electronic Resource
    Electronic Resource
    Branchinella maduraiensis Raj (Crustacea, Branchiopoda, Anostraca) shown by new evidence to be a valid species (1997)
    Springer
    Hydrobiologia 359 (1997), S. 93-99 
    Details
    ISSN: 1573-5117
    Keywords: Branchiopoda ; Branchinella ; taxonomy ; morphology ; India
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The fairy shrimp Branchinella kugenumaensis (Ishikawa) was long considered a widely, though disjunctly, distributed species occurring from Japan through eastern Asia to southern India. Attempts by Raj (1951, 1961) to make the Indian populations a new variety (B. k. var. madurai) on the basis of antennal and frontal appendage morphology and on its distribution pattern, were considered unconvincing by later authors. Our new comparison of Japanese and Indian specimens has revealed several differences. The resting egg shells of B. kugenumaensis from Japan have irregular polygonal fields; whereas, the shells of the Indian taxon have lip-like units covered with spinules. Furthermore, there are lobes lateral to the basal penes in the Indian specimens that are lacking in the Japanese taxon. As well as differences in antennal and frontal appendage morphology. These differences correspond with previous illustrations of populations from both geographic regions and lead us to consider Raj's proposed subspecies as a valid species. This brings the number of accepted species in the genus Branchinella to 34. More specimens will need to be evaluated from the area between India and Japan to determine if B. maduraiensis is endemic to the Indian subcontinent or is more broadly distributed on the Asian mainland.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003173727950
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