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  • Blackwell Publishing Ltd  (56)
  • 1990-1994  (56)
  • 1980-1984
  • 1993  (37)
  • 1991  (19)
  • 1
    Electronic Resource
    Electronic Resource
    Fluid infiltration during contact metamorphism of interbedded marble and calc-silicate hornfels, Twin Lakes area, central Sierra Nevada, California (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of metamorphic geology 11 (1993), S. 0 
    Details
    ISSN: 1525-1314
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Abstract In the Twin Lakes area, central Sierra Nevada, California, most contact metamorphosed marbles contain calcite + dolomite + forsterite ± diopside ± phlogopite ± tremolite, and most calc-silicate hornfelses contain calcite + diopside + wollastonite + quartz ± anorthite ± K-feldspar ± grossular ± titanite. Mineral-fluid equilibria involving calcite + dolomite + tremolite + diopside + forsterite in two marble samples and wollastonite + anorthite + quartz + grossular in three hornfels samples record P± 3 kbar and T± 630° C. Various isobaric univariant assemblages record CO2-H2O fluid compositions of χCO2= 0.61–0.74 in the marbles and χCO2= 0.11 in the hornfelses. Assuming a siliceous dolomitic limestone protolith consisting of dolomite + quartz ° Calcite ± K-feldspar ± muscovite ± rutile, all plausible prograde reaction pathways were deduced for marble and hornfels on isobaric T-XCO2 diagrams in the model system K2O-CaO-MgO-Al2O3-SiO2-H2O-CO2. Progress of the prograde reactions was estimated from measured modes and mass-balance calculations. Time-integrated fluxes of reactive fluid which infiltrated samples were computed for a temperature gradient of 150 °C/km along the fluid flow path, calculated fluid compositions, and estimated reaction progress using the mass-continuity equation. Marbles and hornfelses record values in the range 0.1–3.6 × 104 cm3/cm2 and 4.8–12.9 × 104 cm3/cm2, respectively. For an estimated duration of metamorphism of 105 years, average in situ metamorphic rock permeabilities, calculated from Darcy's Law, are 0.1–8 × 10−6 D in the marbles and 10–27 × 10−6 D in the hornfelses. Reactive metamorphic fluids flowed up-temperature, and were preferentially channellized in hornfelses relative to the marbles. These results appear to give a general characterization of hydrothermal activity during contact metamorphism of small pendants and screens (dimensions ± 1 km or less) associated with emplacement of the Sierra Nevada batholith.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1525-1314.1993.tb00132.x
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  • 2
    Electronic Resource
    Electronic Resource
    Is advertising rational? (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Business strategy review 2 (1991), S. 0 
    Details
    ISSN: 1467-8616
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Advertising is not a process by which gullible consumers are persuaded to buy things they don't want, according to the authors of this paper. Instead, it furnishes consumers with some useful information. It is not so much the claims made by advertisers that are helpful, but the fact that they are willing to spend extravagant amounts of money on a product that is informative. The authors find tentative evidence for this view of advertising and discuss its implications.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8616.1991.tb00156.x
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  • 3
    Electronic Resource
    Electronic Resource
    Atrazine in a Stream-Aquifer System: Estimation of Aquifer Properties from Atrazine Concentration Profiles (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water monitoring & remediation 13 (1993), S. 0 
    Details
    ISSN: 1745-6592
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: Lincolns municipal wellfield consists of 44 wells developed in an alluvial aquifer adjacent to the Platte River near Ashland, Nebraska Induced recharge from the river is the primary source of water for the wellfield. Wafer samples were collected on a periodic basis from the Platte River arid two transects of monitoring wells. These samples were analyzed for the herbicide atrazine, which was used as a tracer of induced recharge in this stream-aquifer system. Atrazine concentrations in the river and aquifer were much less than 1.0 ppb during late fall and winter, but increased to as high as 18.9 ppb during spring and summer, associated with runoff from upgradient agricultural lands. There was approximately a 21-day lag time from the first detection of increasing atrazine concentration in the river to the first detection in monitoring wells immediately adjacent to the river. This lag time was relatively constant throughout the year and from one year to the next, even with major fluctuations of river stage and wellfield production. This consistency of lag time indicated that the travel times from the river to the first set of monitoring wells immediately adjacent to the river were fairly constant.Paths of preferential flow were identified in the aquifer at a depth of 25 to 35 feet below land surface. This aquifer zone appeared to play a significant role in movement of water from beneath the river into the wellfield.Aquifer dispersivity was calculated using a method described by Hoehn and Santschi (1987). Macrodispersivity (AL) was shown to increase linearly over the scale of the wellfield. Calculated values of AL were within limits of other reported values for this type of aquifer material and agreed well with values reported by Hoehn and Santschi (1987); These findings will be extremely beneficial for planning and management of the municipal wellfield.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6592.1993.tb00445.x
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  • 4
    Electronic Resource
    Electronic Resource
    Who are the world's most successful companies? (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Business strategy review 2 (1991), S. 0 
    Details
    ISSN: 1467-8616
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: It seems that everybody wants to know which companies are the most successful. To help throw light on the issue, and to do so more reliably than the plethora of league tables and charts produced by most business magazines, the London Business School have teamed up with The Economist to compile an assessment of the top performers of the 1980's.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8616.1991.tb00150.x
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  • 5
    Electronic Resource
    Electronic Resource
    Measuring the Performance of Banks (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Business strategy review 4 (1993), S. 0 
    Details
    ISSN: 1467-8616
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Banks do not publish accounts in quite the same way as other companies, and nor should they. But they should not be immune to conventional standards of performance ranking and evaluation. This companion piece to Business Strategy Review articles on measuring company performance applies some performance benchmarking to a sample of European Banks. The result: they must do better.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8616.1993.tb00056.x
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  • 6
    Electronic Resource
    Electronic Resource
    The World's Best Performing Companies (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Business strategy review 4 (1993), S. 0 
    Details
    ISSN: 1467-8616
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: For companies to create successful strategies, they need to identify success. Performance measurement and benchmarking are an important step towards good performance itself. But conventional profit measures do not provide a good benchmark. Using a profitability indicator which measures value created for shareholders, Business Strategy Review ranks the best performing companies in Europe, America and Japan. The message: if you want to be a successful company, move into the Pharmaceuticals sector.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8616.1993.tb00048.x
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  • 7
    Electronic Resource
    Electronic Resource
    Continental Mergers Are Different (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Business strategy review 2 (1991), S. 0 
    Details
    ISSN: 1467-8616
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: In recent years, business has been heavily preoccupied with two themes: merger and acquisition activity, and the development of the Single European Market. The topic of this paper combines the two: Continental mergers. The authors argue that the costs and benefits of Continental mergers are different from those of their domestic counterparts, and they need to be handled in different ways. This has implications both for the form of integration and for the way in which it is implemented. Most important, it is relevant to the selection of the right partner.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8616.1991.tb00147.x
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  • 8
    Electronic Resource
    Electronic Resource
    How Long Should a Customer Wait for Service? (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Decision sciences 22 (1991), S. 0 
    Details
    ISSN: 1540-5915
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: A major concern for service managers is the determination of how long a customer should wait to be served. Services, due to the customer's direct interaction with the process, must face a trade-off between minimizing the cost of having a customer wait and the cost of providing good service. A total cost model is presented for determining how long a customer should wait when these two conflicting cost components are considered. An integral part of this model includes a measure of customer satisfaction with waiting time which is used to develop a waiting cost function. The model is then applied to a major fast food chain, using data collected at several locations. Analysis of the data reveals that the “ideal” waiting time for this firm is significantly less than the current corporate waiting time policy. Thus, as indicated by the model, a corporate policy change is recommended to provide much faster service. The adoption of such a policy would result in increased labor costs, and would simultaneously increase the firm's overall profits. Although appearing contradictory, increases in current labor costs and long-term profits are both possible when management takes the long-range perspective suggested in this paper.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1540-5915.1991.tb00356.x
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  • 9
    Electronic Resource
    Electronic Resource
    Decisional Conflict and User Acceptance of Multicriteria Decision-Making Aids (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Decision sciences 22 (1991), S. 0 
    Details
    ISSN: 1540-5915
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Despite the development of increasingly sophisticated and refined multicriteria decision-making (MCDM) methods, an examination of the experimental evidence indicates that users most often prefer relatively unsophisticated methods. In this paper, we synthesize theories and empirical findings from the psychology of judgment and choice to provide a new theoretical explanation for such user preferences. Our argument centers on the assertion that the MCDM method preferred by decision makers is a function of the degree to which the method tends to introduce decisional conflict. The model we develop relates response mode, decision strategy, and the salience of decisional conflict to user preferences among decision aids. We then show that the model is consistent with empirical results in MCDM studies. Next, the role of decisional conflict in problem formulation aids is briefly discussed. Finally, we outline future research needed to thoroughly test the theoretical mechanisms we have proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1540-5915.1991.tb00371.x
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  • 10
    Electronic Resource
    Electronic Resource
    The Axon May Control Schwann Cell Responses to Growth Factors (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 633 (1991), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1991.tb15651.x
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