41,623 research outputs found
Ideal chain two dimensional critical percolation cluster
No full textThe authors study the statistics of the ideal chain (or equally weighted trajectories) for the first time on a two-dimensional critical percolation cluster. They discuss the asymptotic behaviour of the mean end-to-end distance and the number of chains for the long chain limit by exact enumeration. The results strongly suggest that this problem does not belong to the same universality class as the random walk (or kinetically weighted trajectories) on the same fractal cluster
O. Fuchs, N. Greinacher, L. Karrer, N. Mette et H. Steinkamp, Der Pastorale Notstand. Notwendige Reformen für eine zukunftsfähige Kirche. 1992
No full textWeber Philippe. O. Fuchs, N. Greinacher, L. Karrer, N. Mette et H. Steinkamp, Der Pastorale Notstand. Notwendige Reformen für eine zukunftsfähige Kirche. 1992. In: Revue théologique de Louvain, 26ᵉ année, fasc. 3, 1995. p. 388
Tangible strategies for pro-environmental behaviours through monitoring park visitors’ activities and perceived values
No full textO. Fuchs, N. Greinacher, L. Karrer, N. Mette et H. Steinkamp, Der Pastorale Notstand. Notwendige Reformen für eine zukunftsfähige Kirche. 1992
No full textWeber Philippe. O. Fuchs, N. Greinacher, L. Karrer, N. Mette et H. Steinkamp, Der Pastorale Notstand. Notwendige Reformen für eine zukunftsfähige Kirche. 1992. In: Revue théologique de Louvain, 26ᵉ année, fasc. 3, 1995. p. 388
Combining satellite imagery (QuickBird, ASTER) and field inventory data with a non parametric approach
No full textCombining satellite imagery (QuickBird, ASTER) and field inventory data with a non parametric approach
No full textA new gene locus of Bordetella pertussis defines a novel family of prokaryotic transcriptional accessory proteins
No full textRecently, a novel type of regulatory mutation causing differential effects on the expression of virulence genes due to a slight overexpression of the RNA polymerase α subunit (RpoA) was found in Bordetella pertussis (N. H. Carbonetti, T. M. Fuchs, A. A. Patamawenu, T. J. Irish, H. Deppisch, and R. Gross, J. Bacteriol. 176:7267-7273, 1994). To gather information on the molecular events behind this phenomenon, we isolated suppressor mutants of the RpoA-overexpressing strains after random mutagenesis. Genetic characterization of these suppressor strains revealed the existence of at least three distinct groups of dominant alleles. Mutations occurred either in the rpoA locus itself, in the bvg locus, or in unknown gene loci. One mutant of the latter group was further characterized. By the introduction of a cosmid library containing genomic B. pertussis DNA into this suppressor strain, we isolated a cosmid which suppressed the phenotype of the suppressor strain, thus restoring the negative effect on transcription of the ptx and cya toxin genes. Mutagenesis of the cosmid with Tn5 led to the identification of the gene locus responsible for this phenomenon. Its DNA sequence revealed the presence of an open reading frame (ORF) consisting of 2,373 bp coding for a hypothetical 86-kDa protein with extensive sequence similarities to ORFs with not yet identified functions of Escherichia coli, Haemophilus influenzae, and Neisseria meningitidis. The new gene, termed tex, for toxin expression, seems to be an essential factor for B. pertussis, as it cannot be deleted from the bacterial chromosome. All members of this new protein family show significant sequence similarities with the mannitol repressor protein MtIR and with the presumptive RNA-binding domains of the Pnp and ribosomal S1 proteins of E. coli in their N- and C- terminal parts, respectively. These sequence similarities and the fact that the tex gene was isolated by virtue of its effects on gene expression in B. pertussis indicate that the members of this new protein family may play an important role in the transcription machinery of prokaryotic organisms
Epstein Cynthia Fuchs — Woman's Place Options and Limits in Professional Careers
No full textP. H. Epstein Cynthia Fuchs — Woman's Place Options and Limits in Professional Careers. In: Population, 26ᵉ année, n°6, 1971. pp. 1177-1178
Cultural Determinants of Household Saving Behavior
No full textRelying on the epidemiological approach, we show that culture is a significant driver of household saving behavior. Second-generation immigrants from countries that put strong emphasis on thrift or wealth accumulation tend to save more in Germany. We confirm these results in data from the United Kingdom. By linking parents to their children, we show that these two cultural components affect the saving behavior of both first-generation immigrants and their children
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