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  • 1
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    Cloning of herpes simplex type 1 DNA fragments in a bacteriophage lambda vector (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-02-09
    Beschreibung: DNA isolated from defective and nondefective virions of herpes simplex type 1 (HSV-1) (strain Patton) was digested with restriction endonucleases, and the resulting DNA fragments were inserted in the EK2 coliphage vector lambdagtWES . lambdaB. The recombinant DNA was encapsidated in vitro under P4 maximum containment conditions. These lambda-HSV1 hybrids were purified and amplified, and the DNA was isolated in the P4 facility. DNA, free of viable phage and bacteria, was removed from P4 conditions and analyzed. Represented among the hybrids studied to date are DNA fragments from about 50 percent of the normal HSV-1 genome. The hybrids derived from defective HSV-1 DNA fragments demonstrate the existence of many similar but not identical classes of defective genomes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enquist, L W -- Madden, M J -- Schiop-Stanley, P -- Vande Woude, G F -- New York, N.Y. -- Science. 1979 Feb 9;203(4380):541-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/216076" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Chromosome Mapping ; Coliphages/genetics ; DNA Restriction Enzymes/metabolism ; *DNA, Recombinant ; DNA, Viral/*genetics ; Escherichia coli/genetics ; Genes, Viral ; Methods ; Simplexvirus/*genetics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    MINERALS AND XENOBIOTIC RESIDUES IN THE EDIBLE TISSUES OF WILD AND POND-RAISED LOUISIANA CRAYFISH (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food safety 12 (1991), S. 0 
    Details
    ISSN: 1745-4565
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: The popularity of Cajun cuisine has promoted the consumption of Louisiana crayfish, Procambarus clarkii. Tail meat and hepatopancreatic tissues of crayfish captured from two locations in the Atchafalaya River Basin and four open ponds were analyzed separately for xenobiotic metal and mineral composition using an inductively coupled plasma emission spectrometer (ICP) and chlorinated hydrocarbons by gas chromatograph (GC) with electron capture detector. Less than 3 mg/kg of toxic xenobiotic metals were found in the tail meats and less than 5 mg/kg in the hepatopancreatic tissues. Mineral concentrations were similar to those reported for other crustacean species. Occasional trace amounts of DDD and DDE were found present in tissue samples.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1745-4565.1991.tb00062.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Stress-induced parallel changes in central opioid levels and pain responsiveness in the rat (1977)
    [s.l.] : Nature Publishing Group
    Nature 265 (1977), S. 358-360 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] To assess the effects of either acute or repeated exposure Sprague-Dawley rats (400-450 g) were initially tested in the tail-flick procedure on each of two occasions: immediately before the first 30 min stress session (day 1), to obtain a baseline latency, and immediately following this stress ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/265358a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    The meso and (±) isomers of 1,4-dimesityl-1,4-dithiabutane 1,4-dioxide (1978)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 34 (1978), S. 841-845 
    Details
    ISSN: 1600-5740
    Quelle: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Thema: Chemie und Pharmazie , Geologie und Paläontologie , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1107/S056774087800415X
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Resistance and susceptibility of Boronia megastigma cultivars to infestations by the psyllid Ctenarytaina thysanura (1991)
    Springer
    Entomologia experimentalis et applicata 61 (1991), S. 189-198 
    Details
    ISSN: 1570-7458
    Schlagwort(e): Boronia megastigma ; Ctenarytaina thysanura ; ovipositional preferences ; relative hardness ; terminal shoots ; resistance ; antibiosis ; antixenosis ; tolerance
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Studies were conducted on 23 boronia cultivars to determine the mechanisms of resistance and susceptibility to the psyllid, Ctenarytaina thysanura Ferris and Klyver. No antibiosis effects were detected in any of the boronia cultivars investigated. No cultivar was tolerant to C. thysanura attack. However, in both free-choice and no-choice tests in the glasshouse, ovipositional antixenosis (non-preference) was detected in cultivar HC27, whereas cultivars HC4 and HC142 were most preferred for oviposition. Measurement of terminal shoot hardness of cultivars revealed variations in relative hardness. Given a choice between boronia cultivars of the same size and colour but of differing hardness of the terminal shoots, C. thysanura laid more eggs on those cultivars with softer terminal shoots (HC4 and HC142) and laid fewest eggs on harder terminal shoots (HC27). This may explain differences in the psyllid population on different cultivars in the field. Fewer eggs were laid on terminal shoots exceeding a hardness rating of 80 g/mm terminal shoot thickness.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00191749
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    Factors affecting Ctenarytaina thysanura oviposition on Boronia megastigma terminal shoots (1992)
    Springer
    Entomologia experimentalis et applicata 62 (1992), S. 261-268 
    Details
    ISSN: 1570-7458
    Schlagwort(e): Boronia megastigma ; Ctenarytaina thysanura ; honey dew ; sooty mould ; relative hardness ; terminal shoots ; intraspecific competition
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Field observations and experiments showed that the attractiveness of Boronia megastigma terminal shoots for Ctenarytaina thysanura (Hemiptera: Psyllidae) oviposition was effected by the quality and quantity of terminal shoots, relative hardness of the terminal shoot combined with a closed or open architecture of the shoot, nitrogenous fertilizer applications and intraspecific competition between psyllids. Heavy feeding either by nymphal or adult psyllids greatly reduces the attractiveness of terminal shoots for oviposition. This deterrence was associated with the production of honeydew resulting in the development of sooty moulds. When all nymphs had developed to adults, a further 21 days was required for the shoots to be restored to their original condition and suitability for oviposition.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00353445
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  • 7
    Digitale Medien
    Digitale Medien
    Field studies on colour preferences of Ctenarytaina thysanura in Tasmanian boronia farms (1992)
    Springer
    Entomologia experimentalis et applicata 64 (1992), S. 111-115 
    Details
    ISSN: 1570-7458
    Schlagwort(e): Sticky traps ; Boronia megastigma ; Ctenarytaina thysanura ; reflectance ; hues
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Field tests on attraction of Ctenarytaina thysanura (Hemiptera: Psyllidae) adults to different coloured 30×30 cm sticky traps revealed a preference for yellow. Among the enamel colours tested, more psyllids were captured on yellow traps followed by green, then blue and least on red, cyan and magenta. Dilution of yellow enamel with 50% white (1Y: 1W) and 75% white (1Y: 3W) to produce yellow-white hues resulted in a significant decrease in psyllid capture indicating that the psyllids response to yellow was one of positive attraction and could suggest true colour discrimination. Reflectance spectra of painted surfaces of the enamel colours and also yellow to white hues indicated that psyllid capture rates were directly related to the proportion of light reflected in the 500–560 nm region. The biological basis of the observed C. thysanura response may be that yellow is the most intensely reflective colour in the general part of the spectrum for leaves which reflect most light in the 500–600 nm (peak 550 nm) range.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00162983
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  • 8
    Digitale Medien
    Digitale Medien
    Development and application of an integrated pest management programme for the psyllid,Ctenarytaina thysanura onBoronia megastigma in Tasmania (1993)
    Springer
    Entomologia experimentalis et applicata 66 (1993), S. 59-74 
    Details
    ISSN: 1570-7458
    Schlagwort(e): Boronia megastigma ; Ctenarytaina thysanura ; integrated pest management (IPM) ; organophosphate ; parasitoids
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract An integrated pest management programme for control of the psyllid,Ctenarytaina thysanura (Ferris & Klyver) (Hemiptera: Psyllidae) in commercial boronia plantations was developed and implemented from 1986–1989. The programme involved spraying boronia stems only with the systemic organophosphate mevinphos at peak incidence of late stage nymphs. At this time, the majority of parasitoids were pupating within mummified hosts. Consequently, actively feeding nymphs were potentially susceptible to mevinphos but the parasitoids were not. Stem application negated any contact effect on parasitoids and predators. The conservation of natural enemies subsequently reduced psyllid numbers and no insecticide has been required since 1989. In economic terms the benefit to cost ratio of the IPM programme was $22.40: $1.0 and this was 40 times greater than the conventional 10 demeton-S-methyl sprays used by growers prior to the study.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02381548
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  • 9
    Digitale Medien
    Digitale Medien
    Measuring industry importance: an Australian application (1993)
    Springer
    The annals of regional science 27 (1993), S. 175-182 
    Details
    ISSN: 1432-0592
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Architektur, Bauingenieurwesen, Vermessung , Geographie , Wirtschaftswissenschaften
    Notizen: Abstract The focus of this paper is an empirical examination of the importance of an industry in terms of its contribution to regional employment. It uses a closed input-output model. Four alternative measures of importance are presented and explored in the framework of a 58-industry input-output model of the Australian State of Tasmania. The four measures are compared to each other, to direct employment and to a multiplier-based rule-of-thumb. Our preferred measure is one which takes into account both direct effects and the strength of backward linkages. The rule-of-thumb is found to be highly correlated to this measure.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01581945
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  • 10
    Digitale Medien
    Digitale Medien
    Effect of environs and seasonality on metal residues in tissues of wild and pond-raised crayfish in southern Louisiana (1990)
    Springer
    Archives of environmental contamination and toxicology 19 (1990), S. 94-100 
    Details
    ISSN: 1432-0703
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik , Medizin
    Notizen: Abstract Two commercially important species of Louisiana crayfish,Procambarus clarkii (Girard) andP. acutus acutus (Girard), from the Atchafalaya River Basin, from open ponds and from the sediment and water of these environs were sampled three times during two consecutive fishing (production) seasons. The abdominal muscle and hepatopancreatic tissue were analyzed separately. Lead, mercury, and cadmium, if present, were in concentrations below the detection limit. In the hepatopancreatic tissue, barium was present in concentrations below 8 mg/kg, copper 11–15 mg/kg, and iron below 640 mg/kg. Abdominal muscle samples had less than 3 mg/kg of most metals. Locations with the highest levels of metal residues in sediment were not necessarily locations where crayfish had the highest levels in their tissues.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01059817
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