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  • 1
    Electronic Resource
    Electronic Resource
    Flow of dilute polymer solutions: chain conformations and degradation of drag reducers (1990)
    s.l. : American Chemical Society
    Macromolecules 23 (1990), S. 5109-5118 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma00226a013
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    THE IMPACT OF BEQUESTS ON LIFETIME WEALTH ACCUMULATION: AN ECONOMETRIC STUDY OF TWO GENERATIONS OF RURAL HOUSEHOLDS IN INDIA (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Review of income and wealth 36 (1990), S. 0 
    Details
    ISSN: 1475-4991
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Using retrospective data on bequest receipts and wealth over two generations of rural Indian households, we have estimated the effect of bequest receipts on the lifetime wealth accumulation of recipients. We exploit the availability of data on two generations of the same household by estimating a family fixed effects model that controls for unobserved, intergenerationally-persistent household endowments. Our results suggest an adverse impact of bequest receipts on the wealth accumulation of recipients. This effect is much more negative for the current generation of household heads than for the previous generation, indicating that the disincentive effects associated with bequest receipts have increased substantially over a generation. Such disincentive effects are consistent with the commonly-observed phenomenon of “regression to the mean.” The empirical results also show that the positive association between schooling and wealth accumulation has strengthened substantially over the course of a generation, implying rising returns to schooling.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1475-4991.1990.tb00319.x
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  • 3
    Electronic Resource
    Electronic Resource
    Comparison between ELISA and bio tin-la belled probes from cloned cDNA of potato virus X for the detection of virus in crude tuber extracts (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 39 (1990), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Diseases caused by potato virus X (PVX) are of significant agronomic importance, and early detection is vital. Biotinylated DNA probes were prepared by random-primed labelling from cDNA inserts and used for the detection of PVX in crude extracts of infected tubers. The minimum detection level in these extracts is in the order of femtograms of PVX RNA. Comparison with ELISA showed that the hybridization method is 100–250 times more sensitive. Probes prepared by this method are highly specific for target RNA even in crude tuber extracts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1990.tb02544.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Genetic Analysis of Resistance to Xanthomonas campestris pv. oryzae (Ishiyama) Dye in a Rice Breeding Line ARC 10464 (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 108 (1992), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The genetics of resistance to three Indian pathotypes of Xanthomonas campestris pv. oryzae, namely, IX01, IX08 and IX09, was studied in a landrace of Indica rice ‘ARC 10464’. Resistance to each of the two pathotypes IX01 and IX09 was governed by two independently-inherited dominant genes while a single dominant gene was operative against patho-type 1X08. The joint segregation tests conducted on F2 plant progenies (F3 families) using pathotypes IX01, IX08 and IX09 suggested that the gene/(s) effective against each of the pathotypes are different.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1992.tb00141.x
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  • 5
    Electronic Resource
    Electronic Resource
    Limiting wave growth for electron cyclotron waves (1994)
    Springer
    Earth, moon and planets 64 (1994), S. 145-154 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Quasilinear weak diffusion theory presented by Kennel and Petschek (1966) and advanced by Schulz and Davidson (1988) is further extended to put an upper limit on the growth of electron cyclotron waves. It is shown that the power gain of whistler mode electron cyclotron wave (other than plasmaspheric hiss) can not exceed 40 dB. Inside the outer radiation belt, the upper limit of temporal wave growth is ≈350 rad s−1 and normalised wave growth is 0.017. The limits are independent of the kind of the electron diffusion and are applicable for on the equator/off the equator locations of wave-particle interactions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00604486
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  • 6
    Electronic Resource
    Electronic Resource
    Cosmic ray ionization of lower Venus atmosphere (1994)
    Springer
    Earth, moon and planets 65 (1994), S. 89-94 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Cosmic ray particles passing through dense lower atmosphere of Venus decay giving rise to various charged and neutral particles. The flux and degradation of dominant cascade particles namely neutrinos and pions are computed and ionization contributions at lower altitudes are estimated. Using the height profile of pion flux, the muon flux is computed and used to estimate ionization at lower altitudes. It is shown that cosmic ray produced ionization descends to much lower altitudes intercepting the thickness of Venus cloud deck. The dynamical features of Venus cloud deck are used to allow the likely charging and charge separation processes resulting into cloud-to-cloud lightning discharges.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00572202
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Energy dispersive X-ray fluorescence analysis of chloride in reforming catalysts (1990)
    Springer
    Journal of radioanalytical and nuclear chemistry 142 (1990), S. 499-504 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A relatively less expensive Phillips PV 9500/SY 585 automatic energy dispersive X-ray fluorescence (EDXFR) spectrometer with rhodium target, was modified using a commercial kitchen aluminium wrapping foil filter, for the determination of chloride in bifunctional reforming catalysts. Quantitation of chloride was carried out by the Claisse-Quintin method with a catalyst sample of known chloride content as an external standard. The results of EDXRF chloride analysis of different catalyst samples, containing varying amounts of percent carbon and chloride, compared well (p〉0.75) with those obtained by silver chloride precipitation method. The small values of percent relative standard deviations at 0.4 to 4.5% showed a good reproducibility of the method. With the total analysis time of a few minutes combined with no sample preparation, the present method seems to be superior as compared to presently employed methods of chloride analysis in reforming catalysts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02040320
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  • 8
    Electronic Resource
    Electronic Resource
    Genetics of resistance toPuccinia graminis tritici andPuccinia recondite tritici in four South African wheats (1990)
    Springer
    Theoretical and applied genetics 79 (1990), S. 401-410 
    Details
    ISSN: 1432-2242
    Keywords: Puccinia graminis tritici ; Puccinia recondita Tritici ; Triticum aestivum ; Rust resistance ; Gene identification
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Genes for resistance toPuccinia graminis tritici andPuccinia recondita tritici identified in four South African wheats were:Sr6,Sr8a,Sr9e, andLr13 in ‘W3762’;Sr5,Sr8a,Sr9b,Sr12,Sr24,Lr13, andLr24 in ‘W3760’;Sr2,Sr24,SrC,Lr13, andLr24 in ‘W3751’; andSr7a,Sr23,Sr36, andLr16 in ‘W3755’. GenesSr2,Sr9e, andSr24 also conferred adult plant resistance to the predominant pathotypes ofP. graminis tritici. GenesSr7a,Sr23, andSrC, when present alone, did not confer acceptable adult plant resistance, even though low seedling reactions were associated with them when tested with the same pathotypes. Genetic recombination betweenLr13 andSr9e was estimated at 12.5%±2.3%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01186086
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  • 9
    Electronic Resource
    Electronic Resource
    Characterization of variability and relationships among components of partial resistance to leaf rust in CIMMYT bread wheats (1991)
    Springer
    Theoretical and applied genetics 82 (1991), S. 674-680 
    Details
    ISSN: 1432-2242
    Keywords: Puccinia recondita tritici ; Triticum aestivum ; Rust resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A study of spring bread wheat (Triticum aestivum) germ plasm developed at the International Maize and Wheat Improvement Center (CIMMYT) showed highly significant phenotypic variability for each component of partial resistance (namely, uredial appearance period, latency period, uredial number and uredial size) to Puccinia recondita f. sp. tritici. All of the wheat genotypes displayed longer uredial appearance and latency periods and decreased uredial number and uredial size when compared to the susceptible check cultivar ‘Morocco’. Positive correlations between uredial appearance period and latency period, and uredial number and uredial size, and negative correlations between uredial appearance and latency periods and uredial number and uredial size, inclusive, suggested that the components of partial resistance were either tightly linked or under pleiotropic genetic control. Compared to ‘Morocco’, all entries had slow disease progress in the field and variation occurred in the germ plasm for the area under the leaf rust progress curve. Disease progress was negatively correlated with uredial appearance and latency periods, whereas a positive correlation was observed with uredial number and uredial size. Certain genotypes displayed high levels of partial resistance resulting in low disease incidence in the field.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00227310
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  • 10
    Electronic Resource
    Electronic Resource
    Discrete emissions and whistler precursors recorded at low latitude ground station Gulmarg (1993)
    Springer
    Earth, moon and planets 60 (1993), S. 225-232 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Discrete chorus-type emission and whistler precursors recorded in March 1972 during day time hours at our ground based station Gulmarg are presented. It is shown that discrete chorus type emissions are generated in the equatorial region (L ∼ 1.2) during cyclotron resonance interaction between the propagating whistler wave and the gyrating electrons. The whistler precursors are explained in terms of the mechanism suggested by Dowden (1972).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00572520
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