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  • Elsevier  (37)
  • Springer  (24)
  • Molecular Diversity Preservation International
  • 1980-1984  (61)
  • 11
    Electronic Resource
    Electronic Resource
    On interpenetrating samples of unequal sizes (1982)
    Springer
    Metrika 29 (1982), S. 175-188 
    Details
    ISSN: 1435-926X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Summary Koop [1967] proved that interpenetrating samples of unequal sizes are more efficient than those with equal sizes for estimating a finite population total. After observing that there is a serious lacuna present in his proof, a correct proof has been suggested. The optimum choice of individual sample sizes has also been discussed for a given (i) total sample size, (ii) cost and (iii) precision, with an assumed cost structure. Finally, the resulting estimators have been compared with those based on a single sample.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01893377
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  • 12
    Electronic Resource
    Electronic Resource
    Jack-knifing the ratio and the product estimators in double sampling (1981)
    Springer
    Metrika 28 (1981), S. 245-256 
    Details
    ISSN: 1435-926X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Summary Almost unbiased ratio and product type estimators have been obtained with the help of the Jack-Knifing technique for simple random sampling in two phases. The mean square errors of the resulting estimators have been compared with those of the corresponding usual (biased) estimators and it has been found that they are approximately same. This study generalizes similar single sampling results ofDurbin [1959],Shukla [1976] and others.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01902898
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  • 13
    Electronic Resource
    Electronic Resource
    Estimates of parameters of grain-size distribution from weight frequencies (1980)
    Springer
    Mathematical geology 12 (1980), S. 247-265 
    Details
    ISSN: 1573-8868
    Keywords: weight frequency ; shape ; grain size ; computer application
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Mathematics
    Notes: Abstract When grains of a sediment sample are separated by sieving into a number of size classes, the weight of the grains belonging to a particular size-class is called the weight frequency of that class. That the weight frequencies cannot be used as simple frequencies for the calculation of the mean and standard deviation of size of grains is well known. A method is developed in this paper for estimating these two as well as a third parameter, named shape parameter, by minimizing a quadratic form that arises naturally as an analogue of the χ 2 statistic. Two fully worked out numerical examples, with simulated data, are presented to illustrate the method. A computer program in FORTRAN language is also appended. Comparative study shows that the quicker conventional method used by geologists may produce reasonably good estimates of standard deviation when the sample size is large, but the estimates of mean may show large deviations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01091207
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  • 14
    Electronic Resource
    Electronic Resource
    Lattices, bargaining and group decisions (1984)
    Springer
    Theory and decision 16 (1984), S. 111-134 
    Details
    ISSN: 1573-7187
    Source: Springer Online Journal Archives 1860-2000
    Topics: Sociology , Economics
    Notes: Abstract This essay aims at constructing an abstract mathematical system which, when interpreted, serves to portray group-choices among alternatives that need not be quantifiable. The system in question is a complete distributive lattice, on which a class of non-negative real-valued homomorphisms is defined. Reinforced with appropriate axioms, this class becomes a convex distributive lattice. If this lattice is equipped with a suitable measure, and if the mentioned class of homomorphisms is equipped with a metric, then the class and its convex sets are seen to possess certain characteristic properties. The main result (Theorem 6) follows from a combination of these results and a famous result due to Choquet. The mathematical scheme is then interpreted in the subject-language of ‘choice among alternatives’. It is shown, by means of an example, that the system furnishes all the ingredients for describing multi-group choices. Whether or not the same ingredients are also adequate for a behavioural theory of multi-group choices is an issue that will not be gone into. However, the example effectively illustrates how a process of bargaining can be described with the aid of the mathematical scheme. In the second example, a class of bargaining situations is modelled in the symbolism of linear programming with several objective functions combined with unknown ‘weights’; the ‘cost’ vectors in such formulations are identified with homomorphisms, and the main theorem of this essay is applied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00125874
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  • 15
    Electronic Resource
    Electronic Resource
    Impact parameter study in multiparticle production at 70 GeV/c (1981)
    Springer
    Czechoslovak journal of physics 31 (1981), S. 1066-1069 
    Details
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract This paper presents a study of the experimental lower boundb L, on the root-mean-squared impact parameter of the multiparticle production in 70 GeV/c p-nucleon interaction. It has been observed that theb L decreases with increasing final state multiplicity (n) at this fixed energy. The results are in good agreement with those of other authors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01604771
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  • 16
    Electronic Resource
    Electronic Resource
    Organogenesis and tuberization in cultures of Dioscorea floribunda (1984)
    Springer
    Plant cell, tissue and organ culture 3 (1984), S. 325-331 
    Details
    ISSN: 1573-5044
    Keywords: Dioscorea floribunda ; stem calli ; transplantable plantlets ; tuberization at nodes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Callus cultures were established from node and internode segments of Dioscorea floribunda Mart. & Gal. Both Murashige and Skoog's and modified White's medium supported callusing as well as organogenesis when supplemented with either 2,4-D or NAA in combination with BAP or Kn. On development of shoot primordia, calli were transferred to unsupplemented, half strength MS basal medium. This procedure led to the increase in formation of shoots. Several ‘crops’ of shoots were obtained from single differentiating callus cultures by excising the shoots and subculturing the residual part. Seventy percent of plantlets survived rooting and transfer to soil. When they were maintained in half-strength MS basal medium and 0.5 mg1-1 of NAA, 70% of plantlets formed aerial tubers at nodes. These tubers produced both roots and shoots and could be detached from the mother plant.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00043084
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  • 17
    Electronic Resource
    Electronic Resource
    Constrained nonzero-sum games with partially controllable strategies (1980)
    Springer
    Journal of optimization theory and applications 31 (1980), S. 361-371 
    Details
    ISSN: 1573-2878
    Keywords: Nash-equilibrium solutions ; partially controllable strategies ; nonlinear programming ; complementary eigenvalue problems
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract The present paper deals with a class of nonzero-sum, two-person games with finite strategies when there are constraints on the strategies selected by the players. The constraints arise due to the subjective difficulty that each player often has in assigning to the states probabilities with which he is completely satisfied, and the model specifies how much each player must perturb his initial probability estimate in order to change his maximum utility alternative from the alternative originally best under the initial estimate. It is shown that the Nash-equilibrium solution of this class of nonzero-sum games can be characterized by an equivalent nonlinear program which leads in some cases to a pair of complementary eigenvalue problems. Applications to normal or approximate solutions of linear programming problems are also indicated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01262978
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  • 18
    Electronic Resource
    Electronic Resource
    Colloidal bismuth as nucleation catalyst for preparing magnetic glass-ceramics (1984)
    Springer
    Journal of materials science 3 (1984), S. 461-463 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00724392
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  • 19
    Electronic Resource
    Electronic Resource
    Antigenic mimicry of eel tissues by a myxosporidian parasite? (1982)
    Springer
    Parasitology research 66 (1982), S. 249-255 
    Details
    ISSN: 1432-1955
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Parasite antigens were prepared fromMyxobolus spores removed from skin cysts in New Zealand eels and from eel muscle tissue. Rabbit antisera prepared against these antigens reacted with either eel muscle proteins orMyxobolus antigens, as demonstrated by immunodiffusion and immunoelectrophoresis in agarose. This indicated that an antigenic component of the parasite mimics eel tissues. The question of the origin of the spore antigen is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00925342
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  • 20
    Electronic Resource
    Electronic Resource
    The place of phenomenological studies in scientometrics (1984)
    Springer
    Scientometrics 6 (1984), S. 109-113 
    Details
    ISSN: 1588-2861
    Source: Springer Online Journal Archives 1860-2000
    Topics: Information Science and Librarianship , Nature of Science, Research, Systems of Higher Education, Museum Science
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02021286
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