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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of child psychology and psychiatry 27 (1986), S. 0 
    ISSN: 1469-7610
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Abstract A sample of 453 Australian children was followed over the first three years of schooling. Behaviour problems were assessed at the beginning of the first year at school and at the end of the second and third years. At the end of the third year the children were classified as specific reading retarded, general reading backward or normal. At school entry backward readers were found to have behaviour problems, principally relating to attentional deficit. It was concluded that this factor may play a causative role in their reading difficulty. Retarded readers, on the other hand, showed no evidence of behaviour problems.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of child psychology and psychiatry 27 (1986), S. 0 
    ISSN: 1469-7610
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Abstract A sample of 453 Australian children was followed over the first three years of schooling. A broad range of cognitive skills was assessed at the beginning of the first year at school and at the end of the third year the children were classified as retarded, backward or normal readers. At school entry, backward readers were found to be deficient in a broad range of cognitive skills, as might be expected given their lower IQs. Retarded readers, however, were found to be deficient on a more limited range of tasks, mainly involving early literacy and phonological processing skills. The implications of these findings for theories of cognitive deficit in reading retardation are discussed.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Animal Behaviour 29 (1981), S. 217-220 
    ISSN: 0003-3472
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Animal Behaviour 29 (1981), S. 217-220 
    ISSN: 0003-3472
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 441 (2006), S. 498-501 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Understanding the conditions that promote the maintenance of cooperation is a classic problem in evolutionary biology. The essence of this dilemma is captured by the ‘tragedy of the commons’: how can a group of individuals that exploit resources in a cooperative manner resist invasion by ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    New York : Cambridge University Press
    Applied psycholinguistics 5 (1984), S. 201-207 
    ISSN: 0142-7164
    Source: Cambridge Journals Digital Archives
    Topics: Linguistics and Literary Studies , Psychology
    Notes: The study sought evidence consistent with the hypothesis that phonological recoding of printed words is important during reading acquisition. Children at the end of their Kindergarten year were given a test of nonsense word reading (as a measure of phonological recoding skill) as well as tests of sight word reading and verbal intelligence. Two groups of 28 children were matched on sex, school attended, sight word reading, and verbal intelligence, but differed on phonological recoding skill. If phonological recoding was important in reading acquisition, the children with greater skill in this area should make greater gains in reading achievement over the following years. When reading achievement was tested at the end of Grades 1 and 2, these children were found to be significantly ahead.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Agroforestry systems 20 (1992), S. 199-212 
    ISSN: 1572-9680
    Keywords: mixed hedgerows ; inter-and intra-specific competition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract This paper examines the impact of spacing on biomass production of monocropped and mixed hedgerows of seedlings and cutting of Gliricidia sepium and Cassia spectabilis. The impact of lime on G. sepium biomass production was also evaluated. Seedlings survived better than cuttings; and no differences were observed between seedlings in either pattern at the highest density tested. Although spacing reduced inter-and intra-specific competition, total biomass production was greatest at higher densities. Mixing hedgerow species reduced intraspecific competition within C. spectabilis, resulting in increased biomass production. Six, 8 and 12 tons of lime per hectare significantly increased fresh G. sepium biomass production at all harvest dates except the first. Extrapolated to an alley cropping system, applying 6 t/ha of lime increased fresh cumulative G. sepium biomass production by almost 39 t/ha over the no lime treatment representing more than 200 kg N/ha.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1572-9680
    Keywords: green manuring ; mulching ; crop response ; blast ; drought ; terracing ; hedgerow-alley interface
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract G. sepium and C. spectabilis hedgerows were established on slopes ranging from 18 to 31% in an effort to reduce soil erosion and improve upland rice and maize production. Upland rice and maize responded more to soil incorporated G. sepium biomass than to mulched, C. spectibilis. Incorporating hedgerow biomass equivalent to over 40 kg N per hectare, however, did not increase upland rice productivity. Maize, planted during the drought-prone second season, responded more than did rice to mulching. Crop performance improved along the slope gradient. Hedgerow-crop competition was observed at the upper and lower interfaces. Terracing intensified hedgerow-crop competition at the upper interface by reducing the crop's effective rooting depth. Under prevailing climatic and soil conditions, mixed hedgerows of C. spectabilis and G. sepium initially produced approximately 7 tons of fresh biomass per hectare every 3 months. Four years after hedgerow establihment, however C. spectabilis biomass was chlorotic and considerable mortality was observed, suggesting that C. spectabilis may be depleting soil N reserves.
    Type of Medium: Electronic Resource
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