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  • 1
    Electronic Resource
    Electronic Resource
    Annealing studies on radiation damages in biotite, apatite and sphene and corrections to fission track ages (1974)
    Springer
    Pure and applied geophysics 112 (1974), S. 131-139 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Fission track ages need to be corrected for the loss of fossil tracks due to geological and thermal annealing. The range distribution of full-length tracks can yield such corrections if calibration curves translating length reductions into density reductions are available. The study of the annealing characteristics of the three terrestrial minerals, i.e. biotite, apatite and sphene, as functions of temperature and time, has been completed from this point of view. A linear relation has been observed between etchable track length and track density, but slopes and intercepts of the curves tend to vary from mineral to mineral. Over-etching shows significant effect in retrieving partially faded tracks in the case of biotite only, and track density reduction always lags behind track length reduction. In apatite and sphene track density is reduced in the same proportion as track length when length reduction is ∼30 to 50%. For length reductions 〈10%, track density remains nearly unaffected and for length decrease 〉50% the density reduction progressively outweighs the former. The possible reasons for such variations and the usefulness of the calibration curves are briefly discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875927
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  • 2
    Electronic Resource
    Electronic Resource
    Fission track ages of cogenetic minerals of the Nellore mica belt of India (1974)
    Springer
    Pure and applied geophysics 112 (1974), S. 140-148 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Fission track ages of three cogenetic minerals, i.e. muscovite, apatite and biotite, from the Nellore mica belt of India have been determined. Corrections to the observed ages due to geological annealing of fossil tracks have been computed by comparative study of the track lengths of fossil as well as induced fission tracks. An attempt has been made to infer the thermal history of the region in the light of different annealing behaviours of minerals and the discordance in their ages. The muscovite age of 632±15 m.y. corresponds to the occurrence of major metamorphic event and the apatite age of 446±10 m.y. appears to coincide with the time when the thermal conditions in the region became stable. The muscovite age can be reconciled with the biotite age (487±17 m.y.) when its track length distribution curve is interpreted on a two-stage thermal annealing model and the necessary corrections are applied for the decrease of fossil track density.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875928
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  • 3
    Electronic Resource
    Electronic Resource
    EVIDENCE FOR THE INHIBITORY EFFECT OF 5-HYDROXYTRYPTAMINE AT CENTRAL AND PERIPHERAL SITES ON OVULATION IN RABBITS (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental pharmacology and physiology 17 (1990), S. 0 
    Details
    ISSN: 1440-1681
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: 1. The effect of 5-hydroxytryptamine (5-HT) has been investigated on ovulation per se as well as on induced ovulation in rabbits.2. 5-HT administered intracerebroventricularly (i.c.v.) did not induce ovulation per se.3. The ovulation was induced by coitus, subcutaneous administration of progesterone and intravenous administration of cupric acetate.4. Postcoital and progesterone induced ovulation was found to be blocked by i.c.v. administered 5-HT.5. Cupric acetate induced ovulation was, however, not found to be blocked by i.c.v. administered 5-HT.6. Intraperitoneal administration of 5-HT was found to block cupric acetate induced ovulation.7. It is concluded that 5-HT exerts an inhibitory control over ovulation by acting at central as well as at peripheral sites in rabbits.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1440-1681.1990.tb01360.x
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  • 4
    Electronic Resource
    Electronic Resource
    A STUDY OF CENTRAL NEUROTRANSMITTER MECHANISMS IN MORPHINE-INDUCED ‘STRAUB REACTION’ IN MICE: ROLE OF CENTRAL DOPAMINE RECEPTORS (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental pharmacology and physiology 15 (1988), S. 0 
    Details
    ISSN: 1440-1681
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: 1. The role of putative neurotransmitters was investigated in morphine-induced Straub reaction (SR) in albino mice.2. Apomorphine (15 mg/kg) was also effective in inducing SR. However, in a smaller dose (0.2 mg/kg) it blocked SR induced by morphine.3. Morphine-induced SR was potentiated by tranylcypromine, reserpine (acute effect), imipramine and l-dopa and blocked by reserpine (chronic effect), α-methyldopa, pimozide, chlorpromazine, haloperidol and metoclopramide. Prazosin and clonidine partially blocked morphine SR in high doses.4. Propranolol, yohimbine, cyproheptadine and atropine were ineffective in blocking morphine SR.5. The results indicate that morphine SR is mediated through release of DA in the CNS which excites central D2 receptors. Activation of central α1-adrenoceptors might also play a minor role.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1440-1681.1988.tb01012.x
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  • 5
    Electronic Resource
    Electronic Resource
    The influence of weather on the effectiveness of mechanical and chemical conditioning on drying rate of lucerne hay (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Grass and forage science 51 (1996), S. 0 
    Details
    ISSN: 1365-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Field drying experiments in summer and winter compared the drying rate of lucerne hay cut with a rotary disc mower and mower-conditioner, with or without 300 1 ha−1 of 2% aqueous potassium carbonate solution sprayed at cutting. Local farm practice was followed in cutting, raking and drying. Statistical analysis showed significant treatment differences in both summer and winter experiments. Mechanical-cum-chemical conditioning treatment provided the greatest field drying rate, followed by chemical conditioning alone, mechanical conditioning alone and non-conditioned luceme, respectively. The effectiveness of mechanical and chemical conditioning treatments was greater in summer than in winter. Under good S.E. Queensland summer conditions, mechanical-cum-chemical conditioning would allow hay to be cut and baled on the same day, but at least 4 days were required under cool winter weather conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2494.1996.tb02042.x
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  • 6
    Electronic Resource
    Electronic Resource
    A simulation model to predict the drying time for pasture hay (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Grass and forage science 44 (1989), S. 0 
    Details
    ISSN: 1365-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A hay drying model (HAYDMO) which predicts the moisture content of pasture hay is described. It uses multiple regression equations based on field drying experiments with conditioned and unconditioned hay and predicts hourly changes in moisture content for both day and night and also those due to rain. The model can be used with three different combinations of weather, including hourly wet and dry bulb temperatures, radiation, wind speed and rainfall. Testing HAYDMO revealed a satisfactory agreement between predicted and observed moisture contents
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2494.1989.tb01903.x
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  • 7
    Electronic Resource
    Electronic Resource
    Erucic acid heredity in Brassica juncea - some additional information (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 121 (2002), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Genetic studies were undertaken to reassess erucic acid heredity in Brassica juncea. Analysis of segregation in F2 and BC1 generations from two zero × high erucic acid crosses indicated that higher erucic acid in B. juncea was controlled by two dominant genes with additive effects, whereas segregation in a cross involving ‘CCWF 16′, a genotype having intermediate erucic acid (25.6%), and a zero erucic acid strain, indicated monogenic dominant control for intermediate erucic acid content. The B. juncea strain ‘CCWF 16’ was developed by hybridizing high-erucic acid B. juncea cv.‘WF-1’ with a ‘0’ erucic B. rapa cv.‘Candle’ followed by backcrossing with ‘WF-1’ and half-seed selection for low erucic acid in each backcross generation. This strategy resulted in substitution of the high erucic acid allele present in the A genome of B. juncea (AABB) by the zero erucic acid allele associated with ‘A’ genome of ‘Candle’. The intermediate erucic acid content in ‘CCWF 16’ was thus attributed to a gene present in the ‘BB’ genome. Experimental data clearly suggested that the gene (E2) associated with the A genome had a greater contribution to the total erucic acid content in B. juncea than the gene (E1) located on the B genome. This provided experimental evidence for a previous suggestion of unequal contributions of two dominant genes (E1= 12%, E2= 20%) to high erucic acid content in conventional digenomic Brassica species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1439-0523.2002.731805.x
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  • 8
    Electronic Resource
    Electronic Resource
    Production of an interspecific hybrid between Brassica fruticulosa and B. rapa (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 123 (2004), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: An interspecific hybrid between a wild species, Brassica fruticulosa (2n = 16, FF) and a crop Brassica species, B. rapa (2n = 20, AA) was synthesized using sequential ovary-ovule culture on MS medium supplemented with casein hydrolysate. Morphological, molecular and cytogenetic analysis confirmed the true hybrid nature of the offspring. The F1 plants (2n = 18) were intermediate in morphology, highly pollen-sterile as well as self-sterile. A maximum of three bivalents per PMC was recorded, but 14 I + 2 II was the most common meiotic configuration. Normal pollen fertility and regular bivalent (18 II) formation was observed in the amphiploid sectors of the hybrid plants. The F1 hybrid harboured significantly lower aphid populations than the crop Brassica parent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.2004.01007.x
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  • 9
    Electronic Resource
    Electronic Resource
    Chromosome number and sex chromosome mechanism in some more species of the Indian mantids (1966)
    Springer
    Cellular and molecular life sciences 22 (1966), S. 457-458 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Über Chromosomenzahl und Mechanismus der Geschlechtschromosomen von 13 Arten (8 Unterfamilien) indischer Mantiden wird berichtet. Die GattungenHumbertiella, Didymocorypha, Novo Genus der Gruppe Gonypetae vic.Cimantis-Eumantis, Parathespis, Creobroter, Empusa und die ArtDeiphobe brunneri zeigen im ♂ Geschlecht dasXO-System.Hierodula coarctata, Cheddikulama straminea undDeiphobe indica zeigen 2n♂=27 undX 1 X 2 Y.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01900981
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  • 10
    Electronic Resource
    Electronic Resource
    Effects of LSD on open field performance in rats (1969)
    Springer
    Psychopharmacology 15 (1969), S. 333-340 
    Details
    ISSN: 1432-2072
    Keywords: LSD ; Open Field Test
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary LSD has been reported to have variable actions on locomotor and exploratory activity in rats. In the present study LSD in doses ranging from 2 to 500 μg/kg induced varying effects on different components of Open Field behaviour. The “ambulation score” showed a linear increase with increasing log doses while the highest dose caused a steep rise. The “rearing” and “preening scores” exhibited an inverted U type dose-response relationship, the inversion of the curve occuring with doses higher than 8 μg/kg. It is suggested that LSD in normal doses increases all stereotyped activity whereas with higher doses only simple stereotyped activity is increased. Simple horizontal stereotyped activity therefore increases at the cost of vertical stereotype. Thus LSD increases stereotyped activity with increasing dose but while normal doses increase both the horizontal and the vertical type of activity, the higher doses increase only the horizontal type.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00401687
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