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  • 1
    Electronic Resource
    Electronic Resource
    Feeding Mechanisms of Babesia equi (1974)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 21 (1974), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Electron microscope and time lapse, phase contrast cinematography studies on Babesia equi organisms within equine red blood cells revealed that this hemoprotozoon has two organelles possibly involved with ingestion of nutrients: a cytostome that takes in hemoglobin from the host cell and a tubule that extends from the main body of the parasite through the erythrocyte to the blood plasma and appears to ingest plasma during periods of rapid growth and development.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1974.tb03734.x
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  • 2
    Electronic Resource
    Electronic Resource
    Syntheses of [6,7-15N]-Adenosine, [6,7-15N]-2'-Deoxyadenosine, and [7-15N]-Hypoxanthine (1995)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 117 (1995), S. 11669-11672 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00152a006
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  • 3
    Electronic Resource
    Electronic Resource
    Beta-Oxidation in Glyoxysomes from Euglena (1974)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 21 (1974), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. We demonstrated previously the presence of glyoxysomes containing the glyoxylate cycle enzymes in Euglena gracilis grown in the dark on ethanol. We have now established that the glyoxysomes of Euglena grown on hexanoate also contain the following enzymes of the pathway for β-oxidation of fatty acids: hexanoyl-CoA synthetase, 3-β-hydroxyacyl-CoA dehydrogenase and thiolase. Estimations of specific activities indicate that these enzymes are over 20 times as active in glyoxysomes as they are in mitochondria, suggesting that the β-oxidation of fatty acids occurs almost entirely in Euglena glyoxysomes under these conditions. Thus, the entire portion of the gluconeogenic pathway from fatty acid to succinate is localized in the glyoxysome of Euglena.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1974.tb03750.x
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  • 4
    Electronic Resource
    Electronic Resource
    Spectroscopic studies of metal-metal bonding. VI. Vibrational spectra and analyses of trichlorogermane-, trichlorostannane-, or tribomostannanetetracarbonyliron(1-) ions (1974)
    s.l. : American Chemical Society
    Inorganic chemistry 13 (1974), S. 1702-1708 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic50137a033
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  • 5
    Electronic Resource
    Electronic Resource
    Population dynamics and harvesting of semelparous species with phenotypic and genotypic variability in reproductive age (1995)
    Springer
    Journal of mathematical biology 33 (1995), S. 521-556 
    Details
    ISSN: 1432-1416
    Keywords: Population dynamics modeling ; Evolutionarily stable strategies ; Polymorphic life histories ; Age-at-maturity ; Harvesting
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Mathematics
    Notes: Abstract We study the evolution of polymorphic life histories in anadromous semelparous salmon and the effects of harvesting. We derive dynamic phenotypic and genetic ESS models for describing the evolutionary dynamics. We show in our deterministic analysis that polymorphisms are not possible in a panmictic random mating population. Instead, genetic or behavioral polymorphisms may be observed in populations with assortative mating systems. Positive assortative mating may be supported and generated by behavioral and phenotypic traits like male mate choice, spawning ground selection by phenotype, or within-river homing-migration-distance by size. In the case of an evolutionarily stable dimorphism, the ESS is characterized by a reproductive ideal free distribution such that at an equilibrium the individuals are indifferent from the fitness point of view between the two life histories of early and late reproduction. Different strategy models - that is, phenotypic and genetic ESS models - yield identical behavioral predictions and, consequently, genetics does not seem to play an important role in the present model. An evolutionary response to increased fishing mortality is obvious and may have resource management implications. High sea fishing mortalities drive the populations toward early spawning. Thus it is possible that unselective harvesting at sea may eliminate, depending on the biological system, behavioral polymorphisms or genetic heterozygozity and drive the population to a monomorphic one. If within-river homing migration distances depend on the size of fish, unselective harvesting at sea, or selective harvesting of spawning runs in rivers, may reduce local population sizes on spawning grounds high up rivers. Finally, harvesting in a population may cause a switch in a dominant life-history strategy in a population so that anticipated sustainable yields cannot be realized in practice.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00163041
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  • 6
    Electronic Resource
    Electronic Resource
    Atom bouncers have it taped (1995)
    [s.l.] : Nature Publishing Group
    Nature 377 (1995), S. 291-292 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] EXPERIMENTERS now have a new set of tricks for manipulating and storing cold atoms — and the key ingredients are familiar high-street commodities. Edward Hinds and co-workers at Yale University have repeatedly bounced rubidium atoms from magnetic tape of the kind used to record audio ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/377291a0
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  • 7
    Electronic Resource
    Electronic Resource
    Transgenic analysis of the 5′- and 3′-flanking regions of the NADH-dependent hydroxypyruvate reductase gene from Cucumis sativus L. (1995)
    Springer
    Plant molecular biology 28 (1995), S. 821-836 
    Details
    ISSN: 1573-5028
    Keywords: cucumber ; light-regulated gene expression ; NADH-dependent hydroxypyruvate reductase ; organ-specific gene expression ; peroxisome ; photorespiration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The 5′- and 3′-flanking regions of HPRA, a cucumber gene that encodes hydroxypyruvate reductase, were evaluated for regulatory activity with respect to light responsiveness and organ specificity. To define the functional regions of the 5′-flanking region of HPRA, a series of deletions was generated and the remaining portions fused to the β-glucuronidase (GUS) reporter gene (uidA) containing a minimal 35S promoter truncated at −90. The region from −66 to +39 was found to be necessary for light-regulated expression of the uidA reporter gene, while the region from −382 to −67 was found to be necessary for its leaf-specific expression. Further deletion of the HPRA 5′ flanking region to −590 resulted in high levels of root expression, suggesting the presence of a negative regulatory element responsible for silencing root expression of the HPRA gene between −590 and −383. The 3′-flanking region of the HPRA gene downstream of the polyadenylation site contains several sequence motifs resembling regulatory elements present in the promoters of several light-responsive genes. An 823 bp portion of the HPRA 3′-flanking region containing these putative regulatory elements enhanced GUS expression in leaves when placed downstream of the uidA reporter gene in the forward orientation, but not in the reverse orientation. When placed 5′ of the −90 35S promoter, the 823 bp fragment enhanced slightly, independently of orientation, the root tip-specific expression pattern intrinsic to the −90 35S promoter, indicating that in some cases this region can act as a transcriptional enhancer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00042068
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  • 8
    Electronic Resource
    Electronic Resource
    The construction of λ transducing phages containing deletions defining regulatory elements of the lac and trp operons in E. coli (1974)
    Springer
    Molecular genetics and genomics 129 (1974), S. 201-215 
    Details
    ISSN: 1617-4623
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Two sets of plaque-forming λ transducing phages have been isolated which carry parts of the tryptophan (trp) and lactose (lac) operons. The λptrp-lac set of phages carry the trp and lac operons in the same orientation connected by deletions which enter the lac regulatory region from the i side. These deletions start at various sites in or near the trp operon and end either late in the lac i gene, within the promoter, between the promoter and the operator, within the operator, between the operator and the z gene, or very early in the z gene. Starting with one particular trp-lac fusion strain, a series of transducing phages were isolated which contain varying portions of the trp operon extending from the trp A gene towards the trp operator. The other set of phages, which are designated λptrp/lac, carry trp and lac in opposing orientations. These λptrp/lac phages contain deletions which remove all of the lac structural genes and end between the operator and the z gene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00267913
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  • 9
    Electronic Resource
    Electronic Resource
    Avoiding metric monsters: A design metrics approach (1995)
    Springer
    Annals of software engineering 1 (1995), S. 43-55 
    Details
    ISSN: 1573-7489
    Keywords: Design metrics ; design metrics analyzer ; metrics model ; software metrics ; software quality
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract Metric monsters are stumbling blocks that prevent software metrics-guided methodologies from attaining product and process improvement. Metric monsters can occur during the identification, collection or application of software metrics. In our research, we have developed and tested our design metrics over a five-year period and have found them to be excellent predictors of error-prone modules. Based on this research, we will identify some of the monsters that occur in the quantitative analyses of software and its development processes, and present our approach in formulating a design metrics model that avoids these monsters. This model consists of software tools, guidelines and actions for the application of software design metrics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02249045
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  • 10
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    Search for Squarks and Gluinos inpp¯Collisions ats=1.8TeV (1995)
    American Physical Society
    Details
    Publication Date: 1995-07-24
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
    Published by American Physical Society
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