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  • 1
    Electronic Resource
    Electronic Resource
    New investigations on the pyramidal system inMacaca mulatta (1953)
    Springer
    Cellular and molecular life sciences 9 (1953), S. 111-112 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Eswurde in elektrophysiologischen Versuchen gezeigt, dass bei dem Affen (Macaca mulatta) die spinalen Motoneuronen von den kortikospinalen Neuronen monosynaptisch aktiviert werden können. Einige Eigenschaften der monosynaptischen Aktivität wurden beschrieben und einige klinische Aspekte aufgezeigt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02178344
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  • 2
    Electronic Resource
    Electronic Resource
    Uncertainty of nitrogen determination by the Kjeldahl method (1999)
    Springer
    Accreditation and quality assurance 4 (1999), S. 504-510 
    Details
    ISSN: 1432-0517
    Keywords: Key words Uncertainty budget ; Uncertainty evaluation ; Uncertainty component ; Traceability ; Reference standards
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract  The uncertainty of the Kjeldahl method for determination of nitrogen in insulin was evaluated according the procedure described in the Guide to the Expression of Uncertainty in Measurement. The relative standard uncertainty of the method was found to be 0.19%, compared to the relative intermediate precision experimentally found to be 0.085%. The uncertainty components were organized in Tables, which allowed an easy overview and evaluation. The largest contribution to the uncertainty came from volumetric equipment. Systematic uncertainty budgets such as the design presented here facilitate the uncertainty evaluation process and makes it easier to compare uncertainty evaluations performed by different analysts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007690050423
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  • 3
    Electronic Resource
    Electronic Resource
    Lipids in atlantic halibut (Hippoglossus hippoglossus) eggs from planktonic samples in Northern Norway (1989)
    Springer
    Marine biology 101 (1989), S. 553-556 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Fertilized Atlantic halibut (Hippoglossus hippoglossus L.) eggs in different developmental stages (Days 0 to 18) were sampled from plankton in North Norway in February 1986 and analysed for lipid classes and fatty acid content. In unfertilized ovulated eggs taken from ripe fish caught in 1983/1984, polar and neutral lipids comprised ca. 71 and 30% of the total lipids, respectively, decreasing and increasing to 67 and 33%, respectively, in Stage III (11 to 18 d old) fertilized eggs. Of the polar lipids, phosphatidylcholine decreased markedly from 62% in unfertilized ovulated eggs to ca. 40% in Stage I (0 to 3 d old) fertilized eggs, while phosphatidylethanolamine increased from ca. 7 to 33%. Triacylglycerols, the major neutral lipids, increased from ca. 13% in unfertilized ovulated eggs to 16% in Stage III fertilized eggs. The total lipid in Stage I fertilized eggs had relatively low levels of polyunsaturated fatty acids (PUFA), with (n-3) PUFA accounting for only ca. 25% of the total fatty acids. The (n-3) PUFA increased to ca. 40% of the total fatty acids in Stage III, while the (n-3): (n-6) ratio increased from 4.1 to 7.0.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00541658
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  • 4
    Electronic Resource
    Electronic Resource
    Reproduction of asteroids from Balsfjorden, Northern Norway: Analyses of lipids in the gonads of Ctenodiscus crispatus, Asterias lincki and Pteraster militaris (1982)
    Springer
    Marine biology 69 (1982), S. 291-298 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Seasonal lipid analyses were performed on the gonads and residual bodies of Ctenodiscus crispatus (Retzius) and Asterias lincki (Müller & Troschel), collected from Balsfjorden, northern Norway during March 1978–February 1980. The ovaries of both species had high percentages of total lipid (in the region of 60% of the dry weight) that were relatively constant throughout the season. Testes from both species had in the region of 20% of their dry weight as lipid, again with little seasonal variation. The majority of the total lipid in the ovaries of C. crispatus was accounted for by alkyldiacylglycerols and there was little seasonal variation in lipid class composition. Phospholipid accounted for the bulk of the lipid in the testes of C. crispatus, where alkyldiacylglycerols were present but in minor amounts. A slight degree of seasonal variation occurred in the composition of testis lipid in that maximal percentages of triacylglycerols and alkyldiacylglycerols occurred in January–April. The ovaries of A. lincki contained both triacylglycerols and alkyldiacylglycerols as major neutral lipids. Significant seasonal variation occurred in lipid class composition in the ovaries in that neutral lipids showed transient minima in February–April. The testes of A. lincki had substantial amounts of both triacylglycerols and alkyldiacylglycerols: maximal percentages of these lipids occurred in January–March. Analyses of gonads of near-mature Pteraster militaris (O. F. Müller) revealed that the ovaries were rich in lipid that was predominantly alkyldiacylglycerols, whereas the testes had much lower levels of lipid accounted for mainly by phospholipids. The residual bodies of all three asteroids had significant but small amounts of alkyldiacylglycerols in their lipids. A. lincki had triacylglycerols as a major lipid class in its body lipids, whereas in C. crispatus the major body lipid was phospholipid. Little seasonal variation was seen in the composition of the residual body lipid of either C. crispatus or A. lincki. The results are consistent with an aseasonal reproductive pattern in C. crispatus, although a main breeding activity occurred in mid-winter. A. lincki is a more seasonal breeder, but also had maximal activity in winter. Irrespective of their breeding habits, all three asteroids produced eggs rich in alkyldiacylglycerols. A major role for this lipid in the development of the large lecithotrophic eggs of asteroids is indicated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00397494
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  • 5
    Electronic Resource
    Electronic Resource
    Fatty acid compositions of neutral glycerides from the ovaries of the asteroids Ctenodiscus crispatus, Asterias lincki and Pteraster militaris from Balsfjorden, northern Norway (1983)
    Springer
    Marine biology 72 (1983), S. 257-264 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Fatty acid analyses of lipids in the asteroids Ctenodiscus crispatus (Retzius), Asterias lincki (Müller and Troschel) and Pteraster militaris (O. F. Müller) collected in Balsfjorden, near Tromsø, northern Norway in 1978–1980, were performed to further our understanding of the asteroids' reproductive biology. Fatty acid compositions were determined in phospholipids, triacylglycerols and alkyldiacylglycerols isolated from ovaries of frozen C. crispatus. The major polyunsaturates in phospholipids were 20:4(n-6) followed by 20:5(n-3). Both the triacylglycerols and alkyldiacylglycerols were relatively deficient in polyunsaturates but had 20:1(n-13) and 18:1(n-7) as major components. Both these liqid classes had additionally 15% of their fatty acids as a variety of odd-numbered and branched-chain fatty acids. The fatty acid composition of neutral glycerides, largely alkyldiacylglycerols, from heat-dried ovaries of C. crispatus was not materially different from that of alkyldiacylglycerols isolated from the ovaries of frozen individuals. The fatty acid composition of neutral glycerides, largely alkyldiacylglycerols, from heat-dried ovaries of P. militaris was similar to that for C. crispatus in that 20:1(n-13) and 18:1(n-7) were major components, and odd-numbered together with branched-chain fatty acids accounted for about 15% of the total fatty acids. The fatty acid composition of neutral glycerides, consisting of equal amounts of triacylglycerols and alkyldiacylglycerols, from heat-dried ovaries of A. lincki differed from those of the previous two species in that 20:1(n-9) and 18:1(n-9) were major components and odd-numbered together with branched-chain fatty acids accounted for less than 5% of the total fatty acids. The results are discussed mainly in terms of lipid biosynthetic mechanisms within the asteroids and the interplay between internal biosynthetic activities and dietary fatty acids, particularly those from bacterial sources, is considered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00396831
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  • 6
    Electronic Resource
    Electronic Resource
    Vitellogenin, lipid and carbohydrate metabolism during vitellogenesis and pregnancy, and after hormonal induction in the blenny Zoarces viviparus (L.)
    Amsterdam : Elsevier
    Comparative Biochemistry and Physiology -- Part B: Biochemistry and 63 (1979), S. 245-251 
    Details
    ISSN: 0305-0491
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0305-0491(79)90036-1
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  • 7
    Electronic Resource
    Electronic Resource
    Dose response kinetics of serum vitellogenin, liver DNA, RNA, protein and lipid after induction by estradiol-17β in male flounders (Platichthys flesus L.)
    Amsterdam : Elsevier
    Comparative Biochemistry and Physiology -- Part B: Biochemistry and 63 (1979), S. 1-6 
    Details
    ISSN: 0305-0491
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0305-0491(79)90225-6
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  • 8
    Electronic Resource
    Electronic Resource
    Experimental induction of vitellogenin synthesis in eel (Anguilla anguilla) adapted to sea-water or freshwater
    Amsterdam : Elsevier
    Comparative Biochemistry and Physiology -- Part B: Biochemistry and 93 (1989), S. 57-60 
    Details
    ISSN: 0305-0491
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0305-0491(89)90215-0
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  • 9
    Electronic Resource
    Electronic Resource
    Direct DNA Sequencing Following SSCP Analysis
    Amsterdam : Elsevier
    Analytical Biochemistry 218 (1994), S. 478-479 
    Details
    ISSN: 0003-2697
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1006/abio.1994.1216
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  • 10
    Electronic Resource
    Electronic Resource
    2-Amino- and Substituted Aminomethyl-1,2,3,10b-tetrahydrafluoranthen-3-ones (1964)
    s.l. : American Chemical Society
    Journal of medicinal chemistry 7 (1964), S. 677-678 
    Details
    ISSN: 1520-4804
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jm00335a031
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