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  • 1
    Electronic Resource
    Electronic Resource
    Methodology for increasing the adoption of R & D project selection models (1973)
    Oxford, UK : Blackwell Publishing Ltd
    R & D management 4 (1973), S. 0 
    Details
    ISSN: 1467-9310
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Although some studies and experiences have shown that R & D project selection models can be potentially useful decision aids, their adoption and routine use is not widespread. This lack of usage may be a consequence of the lack of attention which model builders have traditionally given to the prevailing adoption attitudes of R & D managers. A design methodology centering around the measurement of adoption attitudes has been developed and used by the authors. The methodology consists of procedures for analyzing the organizational climate relative to project selection model usage, developing an acceptable model form relative to the organizational climate, and inducing the adoption of this model form within the climate. Three case applications of the methodology are described in which negative-to-positive shifts in adoption attitudes occurred and project selection models were adopted for long-term use. These results indicate that the use of this general methodology may lead to increased formal adoption and widespread usage of project selection model forms in R & D.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-9310.1973.tb01037.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Application of a resource allocation system in a technology-based public organization (1975)
    Oxford, UK : Blackwell Publishing Ltd
    R & D management 6 (1975), S. 0 
    Details
    ISSN: 1467-9310
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: A resource allocation system developed for a government laboratory has been subjected to a full-scale experiment within that organization. The experimental system includes: (1) a multiplicative benefit estimation procedure, (2) a constrained optimization resource allocation model hosting piecewise linear benefit functions and interactive capabilities for sensitivity analysis, and (3)a network tracking procedure for predicting progress on major laboratory objectives. It is applied to R & D activities representing 3/4 of the laboratory's total program. The methodological philosophy, structure, and experimental design are presented together with attitudinal data and informational insights gleaned from the experiment. The flexibility of the system for adapting to alternative management models and benefit functional forms is demonstrated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-9310.1975.tb01080.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Methodology for increasing the adoption of R & D project selection models (1974)
    Oxford, UK : Blackwell Publishing Ltd
    R & D management 4 (1974), S. 0 
    Details
    ISSN: 1467-9310
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Although some studies and experiences have shown that R & D project selection models can be potentially useful decision aids, their adoption and routine use is not widespread. This lack of usage may be a consequence of the lack of attention which model builders have traditionally given to the prevailing adoption attitudes of R & D managers. A design methodology centering around the measurement of adoption attitudes has been developed and used by the authors. The methodology consists of procedures for analyzing the organizational climate relative to project selection model usage, developing an acceptable model form relative to the organizational climate, and inducing the adoption of this model form within the climate. Three case applications of the methodology are described in which negative-to-positive shifts in adoption attitudes occurred and project selection models were adopted for long-term use. These results indicate that the use of this general methodology may lead to increased formal adoption and widespread usage of project selection model forms in R & D.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-9310.1974.tb01057.x
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Ex ante research evaluation: Can it be improved?
    Amsterdam : Elsevier
    Agricultural Administration 12 (1983), S. 91-102 
    Details
    ISSN: 0309-586X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0309-586X(83)90074-2
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Using the quadratic Box-Cox for flexible functional form selection and unconditional variance computation (1994)
    Springer
    Empirical economics 19 (1994), S. 639-645 
    Details
    ISSN: 1435-8921
    Keywords: C12 ; C13 ; C52 ; Q11
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Summary A quadratic Box-Cox methodology is presented for choice of flexible functional form that includes consistent computation of variance estimates. Empirical viability of the procedure is investigated by specifying a dual profit function using highly aggregated U.S. agricultural data. Conditional and unconditional variance estimates for the parameters are compared and contrasted. Like-lihood ratio tests are utilized to discriminate among the generalized Leontief, normalized quadratic, translog, and square-rooted quadratic functional forms. Statistical results indicate that the squarerooted quadratic is the preferred choice of functional form for these data, followed by the normalized quadratic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01205820
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Estimating the effectiveness of extension information systems using farm trials and subjective probabilities
    Amsterdam : Elsevier
    Agricultural Economics 7 (1992), S. 77-90 
    Details
    ISSN: 0169-5150
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Economics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0169-5150(92)90023-R
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Protoplast responses in the epidermis of Allium cepa induced by penetration by Botrytis allii (1988)
    Springer
    Mycopathologia 102 (1988), S. 169-173 
    Details
    ISSN: 1573-0832
    Keywords: Allium cepa ; Botrytis allii ; penetration responses
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Penetration of Allium cepa epidermal cells (white, yellow, and red varieties) by Botrytis allii induced a response by host protoplasts in normal tissue which was not observed when penetrations were made in protoplast-free host cell walls. Callose and auto-fluorescing substances (possibly phenolic compounds) were located at the penetration sites only in normal host cells containing protoplasts. Lignin tests were negative. Halos were clearly visible in both types of tissue. Autofluorescence was observed at penetration sites in normal cells of all cultivars but general wall background autofluorescence was not observed in white onions. Autofluorescence was generally yellow green and when treated with ammonium hydroxide became green. Treatment with sodium hydroxide abolished autofluorescence. No attempt was made to isolate the autofluorescing material.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00437400
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Degenerative changes in the epidermal cell wall of Allium cepa caused by Botrytis allii: Loss of dry mass, pectin, and cellulose in halos (1988)
    Springer
    Mycopathologia 101 (1988), S. 47-52 
    Details
    ISSN: 1573-0832
    Keywords: Botrytis allii ; Allium cepa ; halo composition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Halos detected using interference microscopy (even- and fringle-field modes with monoand poly-chromatic light) around penetration sites of Botrytis allii in cell walls of normal and protoplast-free outer epidermal tissue of white, yellow, and red onions were alike. Halos in protoplast-free cell walls contained 33% less dry mass than areas of these walls adjacent to halos (quantitative interference miscroscopy with 546 nm light in the even-field mode). Halos were significantly larger in the white onion than in the yellow and red varieties. The loss of cell wall dry mass during the production of halos involved the loss of pectin and cellulose. We infer that this is caused by enzymes released from the pathogen. Cuticle degradation at penetration sites was not observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00455668
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Germination and post-germination development of Colletotrichum dematium f. circinans on Allium cepa (1983)
    Springer
    Mycopathologia 82 (1983), S. 125-127 
    Details
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Spores of Colletotrichum dematium f. circinans were inoculated onto the abaxial epidermis of washed and unwashed pieces of leaf-base tissue taken from the first thru fourth layers of white, yellow and red onions. Washing tissue dramatically improved germination, less than 0.1% for unwashed versus 83% for washed. Germination capacity, and the number of germination types (16) found on washed tissue was not affected by onion bulb color or leaf-base layer inoculated. Spores with one sessile appressorium, type 001, or with one germ tube without an appressorium, type 100, or with one germ tube with an appressorium produced at the tip, type 110, made up approximately 93% of the types for those spores which germinated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00437343
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Modeling Mexican agricultural production (1999)
    Springer
    Empirical economics 24 (1999), S. 509-528 
    Details
    ISSN: 1435-8921
    Keywords: Key words: Functional form ; profit function ; specification tests ; time series ; JEL classifications: Q11 ; C22
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract. Results of time series tests (including unit root and deterministic and stochastic cointegration tests) imply that a mixture of differenced and cointegrated model specifications are warranted for econometric models of Mexican agricultural supplies and input demands. Test results are sensitive to choice of functional form and the set of regressors. For example, share equations should be estimated using differenced data, but output supply and input demand equations generally should not. Generalized Leontief and quadratic functional forms are preferred over the translog. Symmetry and curvature of a restricted profit function are rejected. Short-run output supplies and input demands are generally inelastic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001810050069
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    Paper (German National Licenses)
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