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  • Electronic Resource  (57)
  • 1995-1999  (32)
  • 1965-1969  (14)
  • 1945-1949  (4)
  • 1940-1944  (7)
  • 11
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Physiology 5 (1943), S. 17-34 
    ISSN: 0066-4278
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine , Biology
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Physiology 7 (1945), S. 599-622 
    ISSN: 0066-4278
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine , Biology
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd.
    Plant, cell & environment 22 (1999), S. 0 
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Single leaves of 3-month-old Cedrella odorata seedlings were exposed to a step reduction in the ambient dew point. The resultant time series of dynamic variations in leaf surface water vapour concentration, leaf surface water vapour concentration gradient, transpiration rate and stomatal conductance to water vapour, are analysed using the data-based mechanistic (DBM) modelling methodology of Young (e.g. Young & Lees 1992; Minchin et al. 1996 ). It is shown that the identified second-order, dynamic model between transpiration rate (as the input) and stomatal conductance (as the output) provides an appropriate, physiologically meaningful, description of the system. In particular, the dynamic relationship between these two variables is remarkably linear and can be resolved in terms of two parallel, first-order, subsystems; a model which complements the results of Cowan (1977) for cotton. The model is also compared with the recently published simulation model of Haefner, Buckley & Mott (1997).
    Type of Medium: Electronic Resource
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  • 14
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 17 (1968), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Treatment of soil in October 1963 with 60 1b (a.i.)/acre (67⋅3 kg/ha) quintozene or 400 1b acre (448⋅4 kg/ha) D-D killed more than 95 per cent of the Longidorus elongatus present and largely prevented transmission of raspberry ringspot and tomato black ring viruses to ‘Red-gauntlet’ strawberry planted in April 1964. The herbicide chloroxuron at 5 1b (a.i)/acre (5⋅6 kg/ha) did not affect L. elongatus numbers but delayed infection of the strawberry plants by controlling weed sources of virus. Quintozene and D-D increased fruit yields four to six-fold in 1965 and nine to twelve-fold in 1966; chloroxuron caused only small increases. Quintozene persisted in the soil for several years but was not detected in strawberry fruit. In an experiment on virus-free soil, quintozene had no effect on ‘Talisman’ strawberry or ‘Mailing Jewel’ raspberry, but adversely affected growth of ‘Lloyd George’ raspberry and sugar beet. L. elongatus migrated slowly through soil and congregated in the root zone of strawberry plants. Populations in untreated plots increased about two-fold per year. Eggs were laid from April to July.
    Type of Medium: Electronic Resource
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  • 15
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 15 (1966), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
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  • 16
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 25 (1995), S. 0 
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background Control of dust mites using extremes of temperature is un alternative to the use of acaricides. In ihe past we have attempted control by freezing with liquiid nitrogen. The present paper deals with the opposite exlrcnic, the use of steam.Objective To assess the feasibility inid effectiveness of a domestic steam cleaner for the control of dust mites. its effect on mite populations and concentrations of the allergen Der p I.Methods A domestic steam cleaner was used to treat earpet squares that had been seeded in the laboratory with known numbers of dust mites (Dermatophagoides pterpmussomis). The number of live mites was monitored for a period of 4 months in eight treated earpet squares and eight controls. Dust samples were taken from 12 standardized areas of carpet in a tenement flat in Glasgow, UK., before and after steam cleaning treatmet. and the concentration of allergen Der p 1 was compared with 12 adjacent. control areas.Results No live mites were found at any time in the treated carpet squares, whereas in the control squares geometric mean mite population density rose frotn 11 after 3 days to 39 after 1 month, 66 after 2.122 after 3 and 185 after 4 months. There was a mean reduetion of 8.7% in Der p I concentration (3.3-0.44 μg/g) compared with a reduction of 4.7% (2.22-2.l16μg/g) in control areas, a difference that was statistically significant at the 5% level.Conclusion These data indicate that steam cleaning has considerable potential as an highly effective and efficient method of killing dust mites and reducing concentrations of Der p 1 in domestic premises.
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 26 (1997), S. 0 
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Opportunistic fungal infections account for a significant amount of morbidity associated with HIV disease. We report here a case of localised oral histoplasmosis without evidence of disseminated disease in a patient who lacked stigmata of HIV disease at the time of initial presentation. The diagnosis is based on histology with special stains, complement fixing antibodies in serum, and culture of the organism from fresh tissues. Activation of subclinical disease following an infection in Uganda may explain the development of these exophytic oral lesions in this British resident.
    Type of Medium: Electronic Resource
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  • 18
    Electronic Resource
    Electronic Resource
    Bradford : Emerald
    International journal of numerical methods for heat & fluid flow 8 (1998), S. 445-464 
    ISSN: 0961-5539
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Methods used to track the free surface in numerical flow simulations, typically during the casting of metals into moulds are examined in this paper. The algorithm employed makes use of a mixed interpolation formulation to approximate the discretised governing equations for elimination on a Langrangian type moving mesh. Significant savings in CPU time are realised by virtue of the the air domain not being considered in the finite element analysis. The advantages and drawbacks of commonly used methods are discussed, and a method proposed for the numerical simulation of flow where the free surface boundary conditions are important. The effectiveness of the proposed algorithm in solving typical industrial flow problems is demonstrated using numerical examples. The results obtained are compared with analytical and numerical data with a view to validating the algorithm.
    Type of Medium: Electronic Resource
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  • 19
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Analysis of patients with inherited hypokalaemic alkalosis resulting from salt–wasting has proved fertile ground for identification of essential elements of renal salt homeostasis and blood–pressure regulation. We now demonstrate linkage of this phenotype to a segment of chromosome 1 ...
    Type of Medium: Electronic Resource
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  • 20
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 205 (1965), S. 1095-1096 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A striking illustration of the improvement in resolution of detail that can be obtained by using the laser is shown in Fig. 1. Harburn, Yeadon and Taylor have developed a method for controlling the effective phase of the light passing through different regions of a half-tone transparency used as a ...
    Type of Medium: Electronic Resource
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