Much has been written about the implications for higher education of the Internet-based Virtual U... more Much has been written about the implications for higher education of the Internet-based Virtual University. This paper is an account of the development and operation of an intranet within a business school. The issues of cultural change are examined within the context of the introduction of a technological innovation, and the major lessons to be drawn from the project are
The intensity and pattern of anthocyanin biosynthesis in Antirrhinum flowers is controlled by sev... more The intensity and pattern of anthocyanin biosynthesis in Antirrhinum flowers is controlled by several genes. We have isolated six cDNA clones encoding enzymes in the pathway committed to flavonoid biosynthesis and used these to assay how the regulatory genes that modify colour pattern affect the expression of bio-synthetic genes. The biosynthetic genes of the later part of the pathway appear to be co-ordinately regulated by two genes, Delila (Del), and Eluta (El), while the early steps (which also lead to flavone synthesis) are controlled differently. This division of control is not the same as control of anthocyanin biosynthesis by the regulatory genes R(S) and C1 in maize aleurone, and may result from the adaptive significance of different flavonoids in flowers and seeds, reflecting their attractiveness to insects and mammals respectively. EI and del are probably involved in transcriptional control and both genes appear to be able to repress expression of some biosynthetic genes and activate expression of others.
The systematic errors introduced by various simulation methods for including dynamical fermions i... more The systematic errors introduced by various simulation methods for including dynamical fermions into lattice gauge Monte Carlo are analyzed. In particular, we find that a discretization of the Langevin equation leads to relative errors of order δτξ2, where ξ is the lattice correlation length.
Much has been written about the implications for higher education of the Internet-based Virtual U... more Much has been written about the implications for higher education of the Internet-based Virtual University. This paper is an account of the development and operation of an intranet within a business school. The issues of cultural change are examined within the context of the introduction of a technological innovation, and the major lessons to be drawn from the project are
The intensity and pattern of anthocyanin biosynthesis in Antirrhinum flowers is controlled by sev... more The intensity and pattern of anthocyanin biosynthesis in Antirrhinum flowers is controlled by several genes. We have isolated six cDNA clones encoding enzymes in the pathway committed to flavonoid biosynthesis and used these to assay how the regulatory genes that modify colour pattern affect the expression of bio-synthetic genes. The biosynthetic genes of the later part of the pathway appear to be co-ordinately regulated by two genes, Delila (Del), and Eluta (El), while the early steps (which also lead to flavone synthesis) are controlled differently. This division of control is not the same as control of anthocyanin biosynthesis by the regulatory genes R(S) and C1 in maize aleurone, and may result from the adaptive significance of different flavonoids in flowers and seeds, reflecting their attractiveness to insects and mammals respectively. EI and del are probably involved in transcriptional control and both genes appear to be able to repress expression of some biosynthetic genes and activate expression of others.
The systematic errors introduced by various simulation methods for including dynamical fermions i... more The systematic errors introduced by various simulation methods for including dynamical fermions into lattice gauge Monte Carlo are analyzed. In particular, we find that a discretization of the Langevin equation leads to relative errors of order δτξ2, where ξ is the lattice correlation length.
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Papers by Steve Flower