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  • 1990-1994  (4)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 44 (1994), S. 0 
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Atlantic cod (Gadus morhua) were forced to swim in a swim tunnel respirometer until fatigued; oxygen consumption rate (ṀO2) was measured during swimming at incremental speeds until the fish was exhausted and during recovery from exhaustion. Maximal oxygen consumption (ṀO2max) occurred during maximal activity as has been found for other fish species, but at odds with the current paradigm for Atlantic cod. Earlier experiments had drawn the conclusion that ṀO2max in Atlantic cod occurs during recovery from exhaustive exercise. We found no support for this paradigm in our experiments and we propose that the respiratory physiology of Atlantic cod is not unlike that of other fishes.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Child 20 (1994), S. 0 
    ISSN: 1365-2214
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Summary This paper reviews the literature on sleep problems in preschool children, aiming to raise awareness of the current knowledge in this field. The article begins with a discussion of the prevalence of sleep problems in young children. Disorders of initiating and maintaining sleep are by far the most common type of sleep problem in this age group, and are therefore the focus of this review. The effects of sleep disturbance are examined, focusing on how parents often feel desperate and in need of support outside the family. The causes of sleep problems are considered and the complexity in identifying causal factors is highlighted. The article continues with an exploration of the treatment of sleep problems, suggesting that much of the advice given to parents is contradictory. The literature demonstrates that the use of medication is common, but it appears that this method of treatment is of limited benefit. It seems that behaviour modification or a psychodynamic approach may be much more successful, and the use of self-help manuals/booklets has been shown to be useful by some authors. Finally, preventative strategies are discussed highlighting the need for further research in this area.
    Type of Medium: Electronic Resource
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  • 3
    facet.materialart.
    Unknown
    London, etc. : Periodicals Archive Online (PAO)
    British journal of psychology. 81 (1990) 299 
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Mammalian genome 5 (1994), S. 557-565 
    ISSN: 1432-1777
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Few mammalian proteins involved in chromosome structure and function during meiosis have been characterized. As an approach to identify such proteins, cDNA clones expressed in mouse testis were analyzed by sequencing and Northern blotting. Various cDNA library screening methods were used to obtain the clones. First, hybridization with cDNA from testis or brain allowed selection of either negative or differentially expressed plaques. Second, positive plaques were identified by screening with polyclonal antisera to prepubertal testis nuclear proteins. Most clones were selected by negative hybridization to correspond to a low abundance class of mRNAs. A PCR-based solid-phase DNA sequencing protocol was used to rapidly obtain 306 single-pass cDNA sequences totaling more than 104 kb. Comparison with nucleic acid and protein databases showed that 56% of the clones have no significant match to any previously identified sequence. Northern blots indicate that many of these novel clones are testis-enriched in their expression. Further evidence that the screening strategies were appropriate is that a high proportion of the clones which do have a match encode testisenriched or meiosis-specific genes, including the mouse homolog of a rat gene that encodes a synaptonemal complex protein.
    Type of Medium: Electronic Resource
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