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  • 1
    Electronic Resource
    Electronic Resource
    Water chemistry and control of weathering of Pichola Lake, Udaipur District, Rajasthan, India (1996)
    Springer
    Environmental geology 27 (1996), S. 184-190 
    Details
    ISSN: 1432-0495
    Keywords: Silicate weathering ; Anthropogenic activity ; Domestic sewage ; Semiarid conditions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The water chemistry of Pichola lake revealed that it is dominated by Na and HCO3. The lake water chemistry strongly reflects the dominance of continental weathering aided by anthropogenic activity, such as tourist influx, developmental activities in the catchment area, and disposal of untreated municipal and domestic sewage into the lake basin. The supply of major ions is mainly through weathering of the silicate rock exposed in the drainage basin and the contribution from saline and alkaline soils/groundwater because of the semiarid conditions of the region. The increase in phosphate loading and consequent depletion of silica suggests biological consumption of the latter. The observed chemical data of Pichola lake was used to predict the mineral assemblages in the carbonate and aluminosilicate system. It demonstrates that calcite and dolomite are the possible minerals that are in equilibrium with the lake water system and that the lake water chemistry is in the range of stability of kaolinite.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00770431
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Benign triton tumor of the trigeminal nerve (1999)
    Springer
    Child's nervous system 15 (1999), S. 140-144 
    Details
    ISSN: 1433-0350
    Keywords: Key words Benign triton tumor ; Neuromuscular hamartoma ; Rhabdomyoma ; Cranial nerve ; Trigeminal nerve
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Benign triton tumor (neuromuscular hamartoma) is a rare tumor of the peripheral nerves, comprising mature neural and striated muscle elements. We report the third case, according to the literature, of a benign triton tumor affecting the Vth cranial nerve in a 4-year-old male child. The tumor was seen to involve the mandibular division of the trigeminal nerve in the infratemporal fossa and extend intracranially by eroding the base of middle cranial fossa. The mass was totally excised. In the tumor, bundles of axons intermingling with fascicles of relatively mature skeletal muscle were found. This type of hamartomatous lesions of neuroectodermal-mesenchymal origin could have arisen as the result of incorporation of mesenchymal tissue into nerve sheaths during embryogenesis or aberrant differentiation of neuroectodermal component into mesenchymal elements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003810050353
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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