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  • Blackwell Publishing Ltd  (123)
  • American Association for the Advancement of Science (AAAS)
  • 1990-1994  (80)
  • 1985-1989  (68)
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  • 1
    Electronic Resource
    Electronic Resource
    Organizational Prospects, Influence Costs, and Ownership Changes (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of economics & management strategy 1 (1992), S. 0 
    Details
    ISSN: 1530-9134
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: We augment efficiency-based theories of ownership by including influence costs. Our principal conclusion is that the prospect of organizational decline and layoffs creates additional influence costs in multiunit organizations that would be absent if there was no prospect of layoffs and would be lessened or eliminated in focused organizations. This helps explain the tendency of firms to divest poorly performing units, as well as the pattern of sales of such units to firms already in businesses related to that of the divested unit.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1430-9134.1992.00009.x
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  • 2
    Electronic Resource
    Electronic Resource
    Orientation of Paramecium Under the Conditions of Weightlessness (1993)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 40 (1993), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: . A cell culture of Paramecium with a precise negative gravitaxis was exposed to 4 times 10-6g during a parabolic flight of a sounding rocket for 6 min. Computer image analysis revealed that without gravity stimulus the individual swimming paths remained straight. In addition, three reactions could be distinguished. For about 30 s, paramecia maintained the swimming direction they had before onset of low gravity. During the next 20 s, an approximate reversal of the swimming direction occurred. This period was followed by the expected random swimming pattern. Similar behavior was observed under the condition of simulated weightlessness on a fast-rotating clinostat. Control experiments on the ground under hyper-gravity on a low-speed centrifuge microscope and on a vibration test facility proved that the observed effects were caused exclusively by the reduction of gravity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1993.tb04937.x
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  • 3
    Electronic Resource
    Electronic Resource
    Comparison of Ribosomal and Isozymic Phylogenies of Tetrahymenine Ciliates (1989)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 36 (1989), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: A recent analysis of sequence variations in ribosomal RNA's from 31 species of tetrahymenine ciliates groups them into 9 sets referred to as “ribosets.” These species associations are not well correlated with the distributions of distinctive morphological characteristics. The phylogenetic structure suggests that modem “pyriform” tetrahymenines may be paraphyletic survivors of primitive design and that the morphologically distinctive forms may include examples of convergent evolution of derived forms. Alternatively, the common ancestor may have been a polymorphic species that has lost its plasticity in some derived lineages. In an attempt to test the ribosomal phylogeny, we here compare it with a phytogeny based on isozymic variation. The main features of the ribosomal and isozymic phylogenies are similar. The carnivorous (macrostome-forming) species are widely scattered in both, as are the bacteriophagous pyriform species. Isozymic and ribosomal analyses are optimally useful, however, in different contexts. Isozymic variations can distinguish species that are ribosomally identical. Ribosomal variations provide more secure evaluations of distant relationships.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1989.tb02661.x
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  • 4
    Electronic Resource
    Electronic Resource
    New Wild Tetrahymena from Southeast Asia, China, and North America, Including T. malaccensis, T. asiatica, T. nanneyi, T. caudata, and T. silvana n. spp. (1985)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 32 (1985), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Tetrahymena of the T. pyriformis complex collected from varied habitats in Malaysia, Thailand, and The People's Republic of China include strains of the micronucleate species T. americanis and T. canadensis and the amicronucleate T. Pyriformis and T. elliotti. Two new breeding species are described—T. malaccensis from Malaysia and T. asiatica from China and Thailand. Two wild selfers from China and some of the amicronucleate strains from all three countries fall into isozymic groups similar to named micronucleate and amicronucleate species. The T. patula complex is represented by two groups of clones from Malaysia that fit the morphological description of T. vorax. They, however, have radically different isozymic electrophoretic patterns and both groups differ from those of previously described T. vorax. As their molecules indicate relationships to other “T. vorax” strains as distant as that between T. vorax and T. leucophrys, they are considered to be new species, T. caudata and T. silvana. A third new breeding species, T. nanneyi, was identified among strains previously collected in North America. Viable immature progeny were obtained from the new strains of the five breeding species. Maximum temperature tolerances were determined for the new strains of four of the breeding species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1985.tb03036.x
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  • 5
    Electronic Resource
    Electronic Resource
    The Glyceryl Ethers of Paramecium Phospholipids and Phosphonolipids (1987)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 34 (1987), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Two glyceryl ethers, 1-O-hexadecyl glycerol and 1-O-cis-octadec-11-enyl glycerol, chimyl and paramecyl alcohol respectively, were quantified in total phospholipids and five glycerophospholipid classes from cells and cilia of the ciliated protozoon Parammecium tetraurelia. The ether content of 2-aminoethyl phosphonoglycerolipid was 85–90 mole %. Concentrations of ethers were greatest in the ethanolamine phosphonolipids 〉 phosphatidylcholines 〉 phosphatidylserines 〉 phosphatidylethanolamines 〉 phosphatidylinositols. The glyceryl ether concentrations in total cellular phospholipids increased with culture age in P. tetraurelia and P. multimteronucleatum cells. The glyceryl ether concentrations in the phospholipids of P. tetraurelia cilia remained constant from mid log to stationary phase of culture growth. Paramecium tetraurelia phospholipid glyceryl ether concentrations were made greater by supplementation of cultures with chimyl alcohol.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1987.tb03190.x
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of winter grazing date on yield components of Lolium perenne (L.)/Trifolium repens (L.) hill pasture (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Grass and forage science 46 (1991), S. 0 
    Details
    ISSN: 1365-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Perennial ryegrass/white clover pastures were grazed at different times in the winter to study the effect of time of grazing on subsequent plant growth. In 1983–84, 1984–85, and 1985–86, pastures were grazed to a residual of 400 kg dry matter ha-1 by sheep once in early December (D), January (J), February (F), March (M), or April (A) and compared with an ungrazed control (C). Rates of herbage accumulation on C in the winter were low, averaging 6, -9, and 2 kg dry matter ha-1 in December, January, and February, respectively. Little forage production occurred during the month immediately following winter grazing. Herbage accumulation rate then increased sufficiently to replace the forage removed from winter-grazed paddocks by early spring. By May, herbage mass on grazed treatments was similar to C except for D and A which averaged 20 and 47% less forage than C, respectively (P〈0·01). Herbage accumulation rates of D were unique among winter grazing treatments in never exceeding those of C. By May 1986, D yielded less perennial ryegrass compared with C (P〈0·05). Grazing reduced the number of leaves per ryegrass tiller for 1 to 2 months following grazing. By May, J, F and M had numerically more tillers m-2 and more leaves per tiller than C. Similar May yields of J, F, M, and C resulted from fewer but larger and slightly less leafy tillers of ungrazed compared with winter grazed plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2494.1991.tb02394.x
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  • 7
    Electronic Resource
    Electronic Resource
    SOME REMARKS ON NOISE STABILITY IN DYNAMIC INVERSION OF REFLECTION SEISMIC DATA (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical prospecting 39 (1991), S. 0 
    Details
    ISSN: 1365-2478
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Physics
    Notes: The dynamic inversion of reflection seismic data is investigated with reference to the influence of noise on pseudo-impedance logs. Model traces are calculated with 0, 5, 15 and 50% noise, respectively. In solving the inversion problem, the algorithm of Marquardt and Levenberg is used in connection with singular value decomposition (SVD). The results are within a 1% error range so that there was no visible change in the logs. Further signal analysis show that there is no dependence on the phase content of the wavelet used if all other parameters of the model are known.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2478.1991.tb00356.x
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  • 8
    Electronic Resource
    Electronic Resource
    The Market & Mr Chalk: A Comment on‘Air Travel: Safety Through The Market’ (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Economic affairs 8 (1988), S. 0 
    Details
    ISSN: 1468-0270
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Bruce Meyer argues that Andrew Chalk in his article‘Air Travel: Safety Through the Market’, Economic Affairs, Volume 8, No. 1, does not go far enough and that the Federal Aviation Administration ought to he abolished.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1468-0270.1988.tb01550.x
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  • 9
    Electronic Resource
    Electronic Resource
    Large European manufacturers and the management of R&D (1986)
    Oxford, UK : Blackwell Publishing Ltd
    R & D management 16 (1986), S. 0 
    Details
    ISSN: 1467-9310
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: At the end of 1984, for the third consecutive year, a research team from INSEAD administered a survey of the largest manufacturers in Europe. This survey attempts to provide an insight into the technological and manufacturing strategy designed and implemented by these large manufacturers.Each year since 1982 about 150 companies have completed the questionnaire, and of these 150 replies about one third are repeat answers. The database thus covers about 350 companies. As a consequence this allows us not only to analyse the static picture for a single year, but also to draw a dynamic picture of how thinking about technological and manufacturing strategy is changing within the European Manufacturing Industry.An analysis of the questionnaire's results allows us to assert some hypotheses about:a. Changes in the length of the product lifecycle.b. The importance of process engineering and proprietary process know-how.c. The interface between manufacturing and research and development as perceived by the manufacturing side.Since a similar survey is conducted for North America and Japan at the same time, it is possible to posit the European manufacturers vis-à-vis their global competitors for some of these issues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-9310.1986.tb01161.x
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  • 10
    Electronic Resource
    Electronic Resource
    Information styles of marketing and R&D personnel during technological product innovation projects (1992)
    Oxford, UK : Blackwell Publishing Ltd
    R & D management 22 (1992), S. 0 
    Details
    ISSN: 1467-9310
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: AbstractThe research question in the present article can be phrased in the following way: what are the elements which influence the perception of the utility of information received from another function? A field study research has been conducted in 40 Belgian companies. In each company, we have studied two on-going innovation projects (one planning project, one development project). Crossfunctional communication behaviours at the R&D/marketing interface have been measured by means of mailed structured questionnaires. Three-hundred and eighty-six questionnaires have been returned. The data analyses show that there are four underlying information dimensions, i.e. the perceived relevance, the perceived comprehensibility, the perceived novelty and the perceived credibility of information. We also discuss some contingency variables (function of the message receiver, stage in the innovation process) that might moderate the impact of these dimensions. It will be shown that the interaction between source and receiver has a significant impact on the perceived credibility, the perceived comprehensibility and the perceived novelty of the received information.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-9310.1992.tb00786.x
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