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  • 1
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    Bloomington, Ind. : Periodicals Archive Online (PAO)
    Victorian Studies. 30:3 (1987:Spring) 412 
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  • 2
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    Unknown
    Bloomington, Ind. : Periodicals Archive Online (PAO)
    Victorian Studies. 30:3 (1987:Spring) 412 
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Psychopharmacology 99 (1989), S. 563-566 
    ISSN: 1432-2072
    Keywords: Information processing ; Reaction time ; α2-Adrenergic ; d-Amphetamine ; Scopolamine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The effects of clonidine and yohimbine on human information processing were tested in six normal volunteers ages 18–30 years. Subjects were tested in a pre-post design with sessions conducted at weekly intervals. Three drug conditions were: Placebo (lactose), 0.2 mg clonidine, and 30 mg yohimbine. Two choice reaction time (RT) tasks were used. One was a stimulus evaluation-response selection task (SERS) that has been shown to be sensitive tod-amphetamine, methylphenidate and scopolamine. The other task was to assess stimulus pre-processing and used spatial frequency as a discriminative stimulus. The principle finding was that clonidine slowed RT; this effect was significant for both tasks. In contrast, yohimbine tended to speed RT, but the effects were significant only for the spatial frequency task on some analyses while not for others. RTs to high spatial frequency stimuli were speeded more than for low spatial frequency. The effects of these two NE drugs were compared with findings withd-amphetamine and scopolamine and interpreted within the framework of a serial information processing model proposed by Callaway (1983). Specifically, it is suggested that yohimbine and clonidine affect an early pre-processing stage.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Experimental and applied acarology 1 (1985), S. 277-286 
    ISSN: 1572-9702
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Mites which are abundant in southeastern Australia, and which have been tentatively identified asMacrocheles “glaber” on the basis of the appearance of the adult female, are shown to be a composite of two species when morphological features of the adult males are considered. These species are tentatively identified on morphological grounds asM. glaber (Müller) andM. perglaber Filipponi and Pegazzano. Populations of these two species imported from France are shown to be capable of interbreeding with their Australian counterparts, thus supporting the identification of the two species found in Australia.M. peregrinus Krantz, introduced into Australia from southern Africa, is shown to be incapable of interbreeding withM. perglaber. The demonstration thatM. glaber andM. perglaber both already exist in the field in Australia indicates that their deliberate introduction now would not contribute to the biological control of dung-breeding flies.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    BioControl 32 (1987), S. 333-338 
    ISSN: 1573-8248
    Keywords: Macrochelidae ; dung ; flies ; Musca vetustissima ; Haematobia irritans exigua ; predation ; Macrochelidae ; mouches coprophages ; Musca vetustissima ; Haematobia irritans exigua ; predation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé Neuf espèces d'Acariens Macrochelidae [Macrocheles “glaber” (Müller),M. aestivus Halliday,M. mammifer Berlese,M. peniculatus Berlese,M. robustulus (Berlese),M. merdarius (Berlese),M. peregrinus Krantz,M. eurygaster Krantz,Glyptholaspis confusa (Foà)] ont été essayés comme prédateurs de 2 espèces de mouches évoluant sur bouses (Musca vetustissima Walker,Haematobia irritans exigua de Meijère). La capacité prédatrice des acariens varie pour chaque espèce de mouche seion le stade de développement de celle-ci: oeuf ou larves. Les acariens les plus gros sont en général des prédateurs plus efficaces que les plus petits. Le niveau de prédation dû àM. “glaber” surM. vetustissima varie aussi en fonction du stade de développement du prédateur et de sa proie.
    Notes: Abstract Nine species of macrochelid mites [Macrocheles “glaber” (Müller),M. aestivus Halliday,M. mammifer Berlese,M. peniculatus Berlese,M. robustulus (Berlese),M. merdarius (Berlese),M. peregrinus Krantz,M. eurygaster Krantz,Glyptholaspis confusa (Foà) were tested in the laboratory as predators of 2 species of dung-breeding pest flies (Musca vetustissima Walker,Haematobia irritans exigua de Meijere). The mites varied in their ability to attack the 2 fly species at both egg and larval stages. larger mites were generally more effective predators than the smaller species. The level of predation imposed byM. “glaber” onMusca vetustissima also varied with the developmental stage of both predator and prey.
    Type of Medium: Electronic Resource
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