MS-代数的主同余的一个刻划及其应用(英文)

本文得到了MS-代数的主同余的一个拓扑刻划，然后运用此刻划给出MS-代数的一些分子簇的新的描述。     

The analytic construction of D-optimal designs for the two-variable binary logistic regression model without interaction

Candidate locally D-optimal designs for the binary two-variable logistic model with no interaction, which comprise 3 and 4 support points lying in the first quadrant of the two-dimensional Euclidean space, were introduced by Haines et al. (D-optimal designs for logistic regression in two variables. In: Lopez-Fidalgo J, Rodrigez-Diaz JM, Torsney B, editors. MODA8 – advances in model-oriented designs and analysis. Heidelberg: Physica-Verlag; 2007. p. 91–98). The authors proved algebraically the global D-optimality of the 3-point design for the special case in which the intercept parameter is equal to?1.5434. However for other selected values of the intercept parameter, the global D-optimality of the proposed 3- and 4-point designs was only demonstrated numerically. In this paper, we provide analytical proofs of the D-optimality of these 3- and 4-point designs for all negative and zero intercept parameters of the binary two-variable logistic model with no interaction. The results are extended to the construction of D-optimal designs on a rectangular design space and illustrated by means of two examples of which one is a real example taken from the literature.     

Management of accounting: The case for an active role

Regulations imposed upon both the external and internal accounting reports of enterprises may evoke a variety of responses from managers ranging from the active to the passive. This paper explores the active, participatory role which managers may choose to adopt in influencing the direction of accounting regulations. Reference is made to a large number of cases arising in Europe and elsewhere which illustrate how managers have provided benefits to their businesses by actively lobbying for constructive changes in the accounting environment.