a celebrated result of i. schur asserts that the derived subgroup of a group is finite provided the group modulo its center is finite, a result that has been the source of many investigations within the theory of groups. in this paper we exhibit a similar result to schur's theorem for vector spaces, acted upon by certain groups. the proof of this analogous result depends on the characteristic o...

For the p̄p and pp systems, we have used all of the extensive data of the Particle Data Group[K. Hagiwara et al. (Particle Data Group), Phys. Rev. D 66, 010001 (2002).]. We then subject these data to a screening process, the “Sieve” algorithm[M. M. Block, physics/0506010.], in order to eliminate “outliers” that can skew a χ2 fit. With the “Sieve” algorithm, a robust fit using a Lorentzian distri...

Preface p. 2 Introduction to the Translation p. 3 Translations p. 4 Introduction p. 4 1. On the significance of nematodes and research about them p. 4 2. History of research on the Rhabditidae p. 5 3. Material and methods p. 5 4. Concepts and methods of phylogenetic systematics p. 6 5. Explanation of morphological characters p. 7 Main Part p. 8 Chapter I. Phylogenetic system of Rhabditinae sens...

We have calculated the cross section of ψ ′ photoproduction at small–p T regions in polarized γp collisions for testing the color–octet model, which is based on NRQCD factorization formalism. We show that the measurement of the two– spin asymmetry of this process might be effective to constrain the value of NRQCD matrix elements.

In this paper we use combinatorial techniques to solve recurrence relations in two variables of the form T(N,k) = 2 T(N/2,k) + T(N,k-l) + f(N) and related recurrences. These recurrences arise in the analysis of algorithms based on a paradigm called "multidimensional divide-and-conquer". The analyses that we present are interesting from a combinatorial view, and show that certain algorithms are ...

Justicidin B, an arylnaphthalene lignan, has strong cytotoxicity on chronic myeloid and chronic lymphoid leukemia cell lines. The first report of the production of justicidin B in a Linum species concerned in vitro culture of Linum austriacum. Therefore, culture characterization and presence of arylnaphthalene-type lignans in calli and plantlets of Linum tenuifolium from section Linastrum, Linu...

In this section, we discuss the numerical implementation of obtaining our proposed sieve estimators. The estimation procedure is based on the EM algorithm. In particular, we describe the special considerations regarding efficient optimization of the constrained maximization problem in each maximization step. Let’s start from the model (3.4) in Section 3.2 where the target variable X is approxim...