We introduce principal differences analysis (PDA) for analyzing differences between high-dimensional distributions. The method operates by finding the projection that maximizes the Wasserstein divergence between the resulting univariate populations. Relying on the Cramer-Wold device, it requires no assumptions about the form of the underlying distributions, nor the nature of their inter-class d...

Amino acid descriptors are often used in quantitative structure-activity relationship (QSAR) analysis of proteins and peptides. In the present study, descriptors were used to characterize peptides binding to the human MHC allele HLA-A0201. Two sets of amino acid descriptors were chosen: 93 descriptors taken from the amino acid descriptor database AAindex and the z descriptors defined by Wold an...

Human Aspects of Scientific Research: DR. WILLAM Discussion: A. HAMOR............................................... 237 The LaplaceEquation: PRoFEssoREDWARDKASNER and DR. JOHN DE Cicco. The Rate of DevelObituary: opment of Red Cell Precursors: DR. ERic PONDER. Dr. Peter I. Wold: PROFEssOR GEORGE DWIGHT Fluorescent Microscopic Study of the Physiological KELLOGG. Lawrence John Palmer: W. L. MCAT...

If we have a real vector field in the plane, the integral curves foliate the plane. Similarly, if we have a complex vector field in C then the complex integral curves foliate space by Riemann surfaces. An example of a question one might ask, is whether these Riemann surfaces are dense in space. In the case of vector fields in the plane, this is impossible, but if we do it on a torus instead, it...

We formulate the Wolff algorithm as a site-bond percolation problem, apply it to the ferromagnetic and antiferromagnetic planar triangular spin models, and study the percolation critical behavior using Anite-size scaling. In the former case the Wold' algorithm is successful as an accelerating algorithm, whereas in the latter case it is not. We found the percolation temperatures and the cluster ...

The purpose of this study was to study the associations between specific self-perceptions and global self-worth with different frequency levels of sport participation among Spanish boys and girls adolescents. Students (457 boys and 460 girls) completed the Self Perception Profile for Children (Harter, 1985) and items assessing sport engagement from The Health Behavior in School Children Questio...

In the rods of certain fresh-water fishes rhodopsin is replaced by a purple photolabile pigment which I have suggested be called porphyropsin. This was first observed in situ by Kiihne and Sewall (1880), and was examined spectrographically in solution by K~ittgen and Abelsdorff (1896). Porphyropsin enters a retinal cycle which is identical in form with that of rhodopsin, but contains different ...

Tubal factors are most important causes of infertility and are attributed to several etiologies. It seems that infections cause 10% to 70% of tubal factors and are strongly depended on patients age, numbers of infections and geogarphical and regional epidemiology. All types of tubal inflamations can impair fertility such as: acute salpingitis, tubo–ovarian abscess formation, asympothomatic invo...

A.D. Riggs.1999. Chromatin structure analysis by ligation-mediated and terminal transferasemediated polymerase chain reaction. Methods Enzymol. 304:548-571. 14.Pfeifer, G.P., S.D. Steigerwald, P.R. Mueller, B. Wold, and A.D. Riggs. 1989. Genomic sequencing and methylation analysis by ligation mediated PCR. Science 246:810-813. 15.Saluz, H. and J.P. Jost. 1989. A simple highresolution procedure ...