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  • 1
    Electronic Resource
    Electronic Resource
    Diversity and genetic differentiation in Artemia species and populations detected by AFLP markers (1999)
    Springer
    International journal of salt lake research 8 (1999), S. 341-350 
    Details
    ISSN: 1573-8590
    Keywords: AFLP ; Artemia ; species
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract Amplified Fragment Length Polymorphism(AFLP) markers were successfully employed to analyze15 Artemia species and strains for geneticdiversity. AFLP markers are extremely sensitive toeven a small sequence variation. They are stable andmore polymorphic than RAPD. Twelve pairs of primercombinations were used to detect AFLP bands, of which384 were polymorphic, and DNA fingerprintings wereobtained by using silver staining. The polymorphismanalysis leads us to the following conclusions: 1. Artemia tibetiana seems to differentiate from A.sinica. 2. The parthenogenetic populations frominland salt lakes could follow an evolutionary paththat is different from that of the coastalparthenogenetic populations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009023020217
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  • 2
    Electronic Resource
    Electronic Resource
    Detection of genetic relationships among fourArtemia species using randomly amplified polymorphic DNA (RAPD) (1999)
    Springer
    International journal of salt lake research 8 (1999), S. 139-147 
    Details
    ISSN: 1573-8590
    Keywords: Artemia ; genetic polymorphism ; RAPD
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract We have applied the technique of random amplification of polymorphic DNA (RAPD) to the analysis of the relationships among four species of brine shrimp:Artemia franciscana, A. urmiana, A. sinica, andA. parthenogenetica. Seventy ten-base synthetic oligonucleotides were used to amplify a total of 458 distinct fragments. DNA polymorphisms were found in all the species examined; the highest percentage of polymorphic bands was found inA. parthenogenetica, with 28.8 per cent. Each species was scored for the presence or absence of every amplification product and the data entered into a binary data matrix. Cluster analysis was then performed to create a dendrogram using UPGMA by the NTSYS program. There are significant differences between bisexual species and parthenogenetic populations.A. parthenogenetica provided 94 specific molecular markers, while bisexual species gave 27 specific molecular markers.A. sinica is a species distinct from the other Old World bisexual species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02442127
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  • 3
    Electronic Resource
    Electronic Resource
    Detection of genetic relationships among four Artemia species using randomly amplified polymorphic DNA (RAPD) (1999)
    Springer
    International journal of salt lake research 8 (1999), S. 139-147 
    Details
    ISSN: 1573-8590
    Keywords: Artemia ; genetic polymorphism ; RAPD
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract We have applied the technique of random amplification of polymorphic DNA (RAPD) to the analysis of the relationships among four species of brine shrimp: Artemia franciscana, A. urmiana, A. sinica, and A. parthenogenetica. Seventy ten-base synthetic oligonucleotides were used to amplify a total of 458 distinct fragments. DNA polymorphisms were found in all the species examined; the highest percentage of polymorphic bands was found in A. parthenogenetica, with 28.8 per cent. Each species was scored for the presence or absence of every amplification product and the data entered into a binary data matrix. Cluster analysis was then performed to create a dendrogram using UPGMA by the NTSYS program. There are significant differences between bisexual species and parthenogenetic populations. A. parthenogenetica provided 94 specific molecular markers, while bisexual species gave 27 specific molecular markers. A. sinica is a species distinct from the other Old World bisexual species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009039815660
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  • 4
    Electronic Resource
    Electronic Resource
    Diversity and genetic differentiation inArtemia species and populations detected by AFLP markers (1999)
    Springer
    International journal of salt lake research 8 (1999), S. 341-350 
    Details
    ISSN: 1573-8590
    Keywords: AFLP ; Artemia ; species
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract Amplified Fragment Length Polymorphism (AFLP) markers were successfully employed to analyze 15Artemia species and strains for genetic diversity. AFLP markers are extremely sensitive to even a small sequence variation. They are stable and more polymorphic than RAPD. Twelve pairs of primer combinations were used to detect AFLP bands, of which 384 were polymorphic, and DNA fingerprintings were obtained by using silver staining. The polymorphism analysis leads us to the following conclusions: 1.Artemia tibetiana seems to differentiate fromA. sinica. 2. The parthenogenetic populations from inland salt lakes could follow an evolutionary path that is different from that of the coastal parthenogenetic populations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02442119
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  • 5
    Electronic Resource
    Electronic Resource
    Studies on polyurethane protective surface material resistance to cavitation erosionThe following three Institutions take part in our research work: Sichuan Centre Institute of Electric Power, Sichun Institute of Water Conservancy Science, and Dong Fang Motorltenator Plant. (1982)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 22 (1982), S. 752-759 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The polyurethane protective surface material, which were made from four different types of polyester and polyether polyol, have been studied with respect to their ultimate properties. The PTMG (polyoxytetramethylene glycol)- and PPG (polyoxypropylene giyco)-based polyurethane protective surface materials exhibited the best results. Use of JIPNs (joint interpenetrating polymer networks), prepared from combinations of polyurethnes with an epoxy adduct with coupling agents and talc, could clearly improve the adhesive strength resistance to water in negative pressure cavitation erosion (by determination with a rotating dish apparatus) and the adhesive strength resistance toward boiling water. The polyurethane protective surface material, which was composed of three separated layers, showed better resistance to cavitation erosion than an epoxy system, poly(methyl methacrylate), aluminum, steel, and different alloys in tests using the venturi tube and the rotating dish apparatus for simulated cavitation erosion, as well as in some power stations in actual field trials.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760221205
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