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  • 1
    Electronic Resource
    Electronic Resource
    Liquid Sulfur Dioxide as Solvent Medium for Chemical Reactions (1942)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 34 (1942), S. 924-926 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie50392a006
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Phospholipase activity of retina and pigment epithelium (1973)
    s.l. : American Chemical Society
    Biochemistry 12 (1973), S. 5273-5278 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00750a008
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Acyl transfer reactions of retina (1974)
    s.l. : American Chemical Society
    Biochemistry 13 (1974), S. 5053-5059 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00721a029
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    The colon influences ileal resection diarrhea (1980)
    Springer
    Digestive diseases and sciences 25 (1980), S. 33-41 
    Details
    ISSN: 1573-2568
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Fecal mass and electrolyte concentrations from 25 ileectomy and/or colectomy patients on known diets were used to assess those factors most responsible for their diarrhea. In 18 ileectomy patients the severity of diarrhea, expressed as a fecal weight, was a function of both percent of colon and centimeters of ileum removed. Linear regression analysis, however, showed that the extent of missing colon had three times the effect of missing ileum on fecal weight. Patients who lost the ileocecal valve and part of the right colon had more diarrhea than those who lost comparable lengths of ileum but had this area preserved. Fecal ion concentrations seemed independent of diet but were related to fecal weight and the amount of colon and ileum removed. Potassium concentration was strongly dependent on the amount of colon lost, while sodium concentration was more influenced by the length of resected ileum. Chloride was most dependent on fecal weight. As expected, fecal fat correlated strongly with the extent of ileum removed. Regression equations were constructed from the electrolyte data which described and predicted the extent of lost ileum or colon. Our data were also used to separate patients with less than 100 cm of ileum removed from those with more extensive resections. The severity of diarrhea following ileal resection depends primarily on the amount of contiguous colon removed. Varying loss of ileum and colon produced predictable effects on fecal weight and electrolyte composition. Surgeons should preserve the maximum amount of colon possible to reduce the severity of diarrhea in these patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01312730
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Updating lower bounds when using Karmarkar's projective algorithm for linear programming (1993)
    Springer
    Journal of optimization theory and applications 78 (1993), S. 127-142 
    Details
    ISSN: 1573-2878
    Keywords: Karmarkar's algorithm ; lower bounds ; linear programming ; interior-point methods
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract We give two results related to Gonzaga's recent paper showing that lower bounds derived from the Todd-Burrell update can be obtained by solving a one-variable linear programming problem involving the centering direction and the affine direction. We show how these results may be used to update the primal solution when using the dual affine variant of Karmarkar's algorithm. This leads to a dual projective algorithm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00940704
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    A primal-dual interior-point method for linear programming based on a weighted barrier function (1995)
    Springer
    Journal of optimization theory and applications 87 (1995), S. 301-321 
    Details
    ISSN: 1573-2878
    Keywords: Linear programming ; interior-point methods ; polynomial covnergence ; quadratic convergence ; superlinear convergence ; least-squares problems
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract One motivation for the standard primal-dual direction used in interior-point methods is that it can be obtained by solving a least-squares problem. In this paper, we propose a primal-dual interior-point method derived through a modified least-squares problem. The direction used is equivalent to the Newton direction for a weighted barrier function method with the weights determined by the current primal-dual iterate. We demonstrate that the Newton direction for the usual, unweighted barrier function method can be derived through a weighted modified least-squares problem. The algorithm requires a polynomial number of iterations. It enjoys quadratic convergence if the optimal vertex is nondegenerate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02192566
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    Paper (German National Licenses)
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