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  • 1
    Electronic Resource
    Electronic Resource
    A 41, XYY mouse (1981)
    Springer
    Cellular and molecular life sciences 37 (1981), S. 821-822 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Cytogenetic analyses of bone marrow and meiotic cells in an apparently normal male mouse clearly revealed the presence of an extra Y chromosome leading to 2n=41, XYY. During meiosis the sex chromosomes formed all possible types of combinations (XYY, XY/Y, YY/X and X/Y/Y). Compared to 40, XY normal mice, the sperm count was significantly less, but the incidence of sperm head abnormality was at the normal level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01985659
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  • 2
    Electronic Resource
    Electronic Resource
    Treatment of Grapefruit Juice for Bitterness Removal by Amberlite IR 120 and Amberlite IR 400 and Alginate Entrapped Naringinase Enzyme (2003)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 68 (2003), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : Treatment of grapefruit (Citrus aurantium) juice with Amberlite IR 400 resulted in 69.23% naringin removal after 5 min exposure with significant clarification and 89.41% tartness (acidity) reduction. Amberlite IR 120 removed only 9% naringin in 1 min with increased shelf life of the juice without any change in clarity, quality, and naringin content. Alginate entrapped naringinase treatment of the juice resulted in 83.84% naringin hydrolysis at 55°C and 220 rpm in 180 min with 1.98 enzyme units/mL of juice. The soluble enzyme hydrolyzed only 65.53% naringin under similar conditions. Kinetic constant values of the immobilized and soluble enzymes were found to be 9.75 mM and 20 mM, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2003.tb09630.x
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  • 3
    Electronic Resource
    Electronic Resource
    Flash photolysis of mesophenyl-3,4,5,3',4',5'-hexamethyldipyrrylmethene
    Amsterdam : Elsevier
    Journal of Photochemistry and Photobiology A: Chemistry 49 (1989), S. 121-130 
    Details
    ISSN: 1010-6030
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/1010-6030(89)87111-4
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  • 4
    Electronic Resource
    Electronic Resource
    Senescence of Hydrilla leaves in light and darkness (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 63 (1985), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Senescence of isolated leaves of Hydrilla verticillata (L.f.) Royle was studied in both darkness and light (20 μmol m−2 s−1). Senescence in the dark followed a general pattern of deterioration, i.e., gradual loss of cellular macromolecules like chlorophyll, protein and RNA with a concomitant rise in α-amino nitrogen, protease activity and tissue permeability. In light, however, an accelerated loss of chlorophyll took place although protein loss and increase in protease activity were retarded. A higher level of α-amino nitrogen in leaves in the light than in darkness could be correlated with lower leaching of free amino acids in light. Light decreased tissue permeability, as evidenced by lower conductivity of the incubation medium. In the light, RNA increased over the initial level. Both soluble and insoluble carbohydrates declined in the dark. The decline of insoluble carbohydrate was retarded by light, whereas soluble carbohydrate showed an initial rise and then declined sharply in the light.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1985.tb01907.x
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  • 5
    Electronic Resource
    Electronic Resource
    Possible mechanisms of light-induced chlorophyll degradation in senescing leaves of Hydrilla verticillata (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 70 (1987), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Light treatment markedly accelerated the chlorophyll loss in senescing leaves of Hydrilla verticillata [(L.f.) Royle] as compared to dark treatment, whereas such acceleration could not be observed in senescing spinach (Spinacia oleracea L.) leaves. The light-induced cholorophyll loss in Hydrilla was retarded slightly by chloramphenicol and markedly by cycloheximide. Catalase (EC 1.11.1.6) activity did not change appreciably in Hydrilla leaves either in light or in darkness, while in spinach it declined markedly in the dark, and light retarded such decline. Peroxidase activity in Hydrilla showed faster increase in light than in darkness, while in spinach it increased only in light during senescence. The activity of phenol(pyrogallol)-specific peroxidase increased markedly in light, and that of ascorbate-specific peroxidase decreased slightly both in light and darkness during senescence of Hydrilla leaves. This rise in phenolspecific peroxidase activity was prevented by cycloheximide treatment. Pretreatment of Hydrilla leaves with monophenol (2,4-dichlorophenol) and o-diphenol (hydroquinone) accelerated and retarded, respectively, the light-induced cholorophyll loss. Pretreatment of Hydrilla leaves with H2O2 augmented the chlorophyll loss more markedly in light than in darkness. The endogenous level of H2O2 increased more in light than in dark during senescence of Hydrilla leaves. Treatment of Hydrilla leaves with 3-(3.4-dichlorophenyl)-l,l-dimethylurea. a photosystem II inhibitor, prevented both light-induced rise in H2O: level and chlorophyll loss, but it was without effect in the dark. Retardation of light-induced chlorophyll loss occurred during senescence of Hydrilla leaves when light was given in different photoperiods in a 24-h daily cycle for 6 days instead of as continuous irradiance. There was a negative correlation between the length of the photoperiod and the extent of cholorophyll loss.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1987.tb04331.x
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  • 6
    Electronic Resource
    Electronic Resource
    Palynological evidence for the Palaeocene evolution of the forearc basin, Indus Suture Zone, Ladakh, India (2004)
    Oxford, UK : Blackwell Science Ltd
    Terra nova 16 (2004), S. 0 
    Details
    ISSN: 1365-3121
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: The discovery of Permian, Mesozoic and Palaeocene palynomorphs from the Nindam forearc basin, exposed along the Indus Suture Zone in Ladakh, is reported. The palynomorphs are from volcanogenic sandstones and are poorly preserved, distorted and show the effects of abrasion (striation marks). The frequent occurrence of Proxapertites indicates the assemblage is at least Palaeocene in age. The Palaeocene palynomorphs and sediments were transported to the Nindam trough from nearby elevated landward regions (islands). These Palaeocene provenance areas were characterized by an estuarine, nearshore, tropical, warm-humid environment and were situated at equatorial palaeolatitudes. However, the occurrence of Permian and Mesozoic palynomorphs in the assemblage indicates that the Late Palaeozoic and Mesozoic Tethyan sedimentary rocks exposed along the northern margin of the Indian plate were redeposited into the tectonically active Cretaceous–Palaeocene trench–subduction complex that existed between the Indian and the Asian plates until the collision took place at ∼50–60 Ma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3121.2004.00553.x
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  • 7
    Electronic Resource
    Electronic Resource
    Microbial leaching of lateritic nickel ore (1993)
    Springer
    World journal of microbiology and biotechnology 9 (1993), S. 255-257 
    Details
    ISSN: 1573-0972
    Keywords: Aspergillus niger ; Bacillus circulans ; Bacillus licheniformis ; bacteria ; bioleaching ; fungi ; lateritic nickel ore ; Thiobacillus ferrooxidans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Lateritic nickel ore from the Sukinda Mines, Orissa, India, was leached using Thiobacillus ferrooxidans, Bacillus circulans, Bacillus licheniformis and Aspergillus niger at 5% (w/v) solid: liquid ratio for 5–20 days. Maximum leaching of Ni was achieved with B. circulans (85%) and Aspergillus niger (92%) after 20 days. Bacillus circulans showed significantly higher rate of leaching than the other organisms giving 80% Ni extraction after 15 days. The importance and usefulness of heterotrophic organisms in metal extraction are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00327850
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  • 8
    Electronic Resource
    Electronic Resource
    Precipitation of copper using Desulfovibrio sp. (1993)
    Springer
    World journal of microbiology and biotechnology 9 (1993), S. 280-281 
    Details
    ISSN: 1573-0972
    Keywords: Bioprecipitation ; copper ; Desulfovibrio ; sulphate-reducing bacteria
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Sulphate-reducing bacteria isolated from submerged soil samples of paddy fields effectively precipitated copper from aqueous solution with maximum effect (75%) at 25 ppm Cu2+. As the copper concentration was increased to 100 ppm, precipitation efficiency decreased significantly. The use of bacteria to precipitate heavy metal ions from aqueous effluents is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00327855
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  • 9
    Electronic Resource
    Electronic Resource
    Influence of arbuscular mycorrhizae on growth, leaf yield and phosphorus uptake in mulberry (Morus alba L.) under rainfed, lateritic soil conditions (1999)
    Springer
    Biology and fertility of soils 29 (1999), S. 98-103 
    Details
    ISSN: 1432-0789
    Keywords: Key words Mulberry ; Phosphate mobilization ; Glomus etunicatum ; Glomus fasciculatum ; Glomus mosseae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract  A field experiment was conducted to study the effect of arbuscular mycorrhizal association in mulberry saplings var. S1, together with two levels of phosphate, on growth characters, leaf yield and phosphorus uptake. The experiment was conducted in the period 1995 to 1997 at the Technical Service Centre, Kashipur, Purulia (West Bengal) under rainfed, lateritic soil conditions. Pooled data analysis revealed that there was no significant variation among the treatments in most of the characters except height of plant and leaf moisture percentage. Plant height in both treatments with Glomus mosseae was significantly less than in the others, while there was significant reduction in moisture percentage in G. fasciculatum with 25 kg of phosphate and G. mosseae with 10 kg of phosphate ha–1 year–1 than in other treatments. There was no significant season–treatment effect on any of the parameters. Considering all the quantitative and qualitative characters, G. fasciculatum together with the most economic dose of phosphate showed more promising performance than G. etunicatum and G. mosseae with different doses of phosphate fertilizer. At 80% of the recommended dose of inorganic phosphate fertilizer, Rs 534.0 were earned as net profit.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003740050531
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  • 10
    Electronic Resource
    Electronic Resource
    Ecology of health and health culture: A case study among the tea labourers in Assam, India (2000)
    Springer
    International journal of anthropology 15 (2000), S. 171-183 
    Details
    ISSN: 1824-3096
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02442057
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