REVIOUS studies (STADLER and NUFFER 1953; STADLER and EMMERLING '1954) have shown that the action of the standard R' allele upon anthocyanin is due to two closely linked genes which are separable by crossing over. The identification of a sufficient number of crossovers within the R complex, together with evidence on the sequence of mutational steps, proved the existence of independent component...

Photoredox catalysis provides many green opportunities for radical-mediated synthetic transformations. However, the determination of the underlying mechanisms has been challenging due to lack of quantitative methods that can be easily implemented in synthetic labs, where this research tends to be centered. We report here on the development, characterization and calibration of a novel actinomete...

The Apollonian tiling of the plane into circles is analyzed with respect to its group properties. The relevant group, which is non-compact and discrete, is found to be identical to the symmetry group of a particular geometric tree-graph in hyperbolic three-space. A linear recursive method to compute the radii is obtained. Certain modiications of the problem are investigated, and relations to ot...

In crossover trials, patients receive two or more treatments in a random order in different periods. The sample size determination is often an important step in planning a crossover study. This paper concerns sample size calculations in 2x2 crossover trials, with random patient effects and no interaction between the treatment and the patient under two scenarios, namely the exact and the large s...

spora, provided a source of aneuploidy is present, we have interpreted the consistent failure to find evidence of somatic crossing over in heterokaryons to indicate that there is no source of aneuploidy present in these cultures. This suggests that fusion of nuclei of the same mating type within a heterokaryon to form diploid nuclei simply does not occur in heterothallic Neurospora. It is for t...

Despite the importance of temporal inference in several domains especially the question answering systems it remains still in its departure compared to other languages. This article deals with the automatic co-construction of patterns of temporal relations for the question answering systems. We have implemented this approach in temporal inference called TPE: Temporal Pattern Extraction.

In recent years, analytic methods have become prominent in additive number theory. In particular, finite Fourier analysis is well-suited to solve some problems that are too difficult for purely combinatorial techniques. Among these is Szemerédi’s Theorem, a statement regarding the density of integral sets and the existence of arithmetic progressions in those sets. In this thesis, we give a gene...

S ott A. Walla e and John E. Laird Arti ial Intelligen e Laboratory University of Mi higan Ann Arbor, MI 48109, USA fswalla e,lairdg umi h.edu ABSTRACT In this paper, we examine Newell's de nition of an agent's intelligen e. The de nition implies a very stri t orrelation between the agent's knowledge, its mind, and its behavior. Based on this orrelation we argue that a on ise and well{formed re...

Bat predation on birds is a very rare phenomenon in nature. Most documented reports of bird-eating bats refer to tropical bats that occasionally capture resting birds. Millions of small birds concentrate and cross over the world's temperate regions during migration, mainly at night, but no nocturnal predators are known to benefit from this enormous food resource. An analysis of 14,000 fecal pel...

We present a very robust and efficient scheme for 3-D reconstruction from point correspondences over multiple images taken by uncalibrated cameras. Our method is based on iterative projective reconstruction followed by Euclidean upgrading. We accelerate the time-consuming iterations for projective reconstruction by using the power method for eigenvalue computation, accelerating the power method...