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  • 1990-1994  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 46 (1991), S. 0 
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: An 8-week survey was conducted to determine whether the introduction of low-flow anaesthesia (a fresh gas flow of 4 litres/minute or less) into routine use would be acceptable to members of a representative anaesthetic department and if the consequent reduction in use of volatile anaesthetics would result in financial savings. The hourly consumption of the volatile agents was measured during anaesthesia conducted using either conventional or low fresh gas flows. Anaesthetists' acceptance of low-flow anaesthesia was assessed using a questionnaire. Data were gathered on 286 patients undergoing inhalational anaesthesia for routine operative procedures. A 54.7% reduction in the consumption of isoflurane and a 55.9% reduction in that of enflurane was found. Of the 28 anaesthetists at the hospital, 21 would use low-flow anaesthesia routinely. The routine use of low-flow anaesthesia would therefore be acceptable and could result in annual savings of £26870 at Northwick Park Hospital.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 111 (1993), S. 0 
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The possibility of producing gynogenetic plants with pollen inactivated by irradiation was explored for the onion (Allium cepa L.). Two successive experiments included the use of cytoplasmic male sterility, recessive nuclear markers in the female plants and pollen irradiation of 150 Gy. Pollinations were achieved with the aid of flies and all seeds were harvested without the use of embryo rescue. Plantlets with recessive characters could be detected and they contained haploid and diploid cells. The development of these plantlets until flowering was observed under agronomic conditions. The use of doubled haploid (DH) plants in onion breeding is discussed.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Sexual plant reproduction 5 (1992), S. 280-285 
    ISSN: 1432-2145
    Keywords: Cabbage ; Female gametophyte irradiation ; Aneuploid plants ; Radiation (nuclear)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We examined the prospects for using the female gametophyte irradiation technique in cabbage to reduce the number of generations needed for cytoplasm transfer. Three different crosses were used with one nuclear and two cytoplasmic male-sterile lines as female parents. The doses applied ranged from 100 to 700 Gy. Differences between the genotypes were observed only in embryo and plant production with varying dose. Several plants derived from the various experiments exhibited one or two recessive paternal markers and an aneuploid number of chromosomes, which shows an irradiation-induced loss of maternal chromosomes. However, no androgenetic haploid plant was obtained. The aneuploid plants could sometimes be backcrossed, and in one case a shift in the segregation ratio towards the paternal (non-irradiated) phenotype was observed. We concluded that while the female gametophyte irradiation technique could reduce the number of generations necessary for cytoplasm transfer, the damage induced seems too restricted for this technique to be applied in cabbage breeding at present.
    Type of Medium: Electronic Resource
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