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  • 1995-1999  (2)
  • Conceptual robustness  (1)
  • Hemisarcoptes  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Experimental and applied acarology 19 (1995), S. 677-694 
    ISSN: 1572-9702
    Keywords: Hemisarcoptes ; Chilocorus ; mites ; parasitism ; phoresy ; tritium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Using tritium as a radiolabel marker of interspecific fluid transfer, we present experimental evidence that the heteromorphic deutonymph of an astigmatid mite (Hemisarcoptes cooremani) acquires materials (at least water) directly from the haemolymph of its beetle host (Chilocorus cacti). This acquisition is above that obtained from atmospheric vapour. The material acquired from the host is necessary for the completion of the ontogeny of H. cooremani and is likely procured through the action of the caudal ventral suckers of the heteromorphic deutonymph (hypopus). On gross morphological criteria, this mite-beetle relationship was previously defined as phoretic (for dispersal). Scanning electron photomicrographs of the physical relationship between the hypopodes and the heetles shed light on the ‘parasitic’ nature of the hypopus of H. cooremani. Our findings are discussed in terms of the evolution of parasitism from a free-living astigmatid form. This transition into parasitism is facilitated by the heteromorphic hypopus and represents a classic ‘wolf-insheep's-clothing’ strategy. The heteromorph retains the characteristic phoretic morphology while exploiting the host in transit.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Research in engineering design 7 (1995), S. 67-85 
    ISSN: 1435-6066
    Keywords: Agents ; Conceptual robustness ; Concurrent engineering ; Distributed concurrent engineering ; Distributed decision making
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Technology
    Notes: Abstract This paper develops a robust and distributed decision-making procedure for mathematically modeling and computationally supporting simultaneous decision-making by members of an engineering team. The procedure (1) treats variations in the design posed by other members of the design team asconceptual noise; (2) incorporates such noise factors into conceptually robust decision-making; (3) provides preference information to other team members on the variables they control; and (4) determines whether to execute the conceptually robust decision or to wait for further design certainty. While Changet al. (1994) extended Taguchi's approach to such simultaneous decision-making, this paper uses a continuous formulation and discusses the foundations of the procedure in greater detail. The method is demonstrated by a simple distributed design process for a DC motor, and the results are compared with those obtained for the same problem using sequential decision strategies in Krishnanet al. (1991).
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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