Search

...simple word formulas, for example for use in a spreadsheet use doing and undoing diagrams to change formulas round...Starting with maths: Patterns and formulas: 1 Exploring patterns and processes - Suppose you are tiling a bathroom or kitchen and the last row of square tiles is to be a frieze made up of blank tiles and patterned tiles as shown below. [Figure 1] Figure 1 A...

...Introduction - The fundamental principles of signalling can be illustrated by a simple example in the yeast S. cerevisiae (Figure 1). In order to sexually reproduce, a yeast cell needs to be able to make physical contact with another yeast cell. First, it has to ‘call’ to yeast cells of the opposite mating type. It does this by secreting a ‘mating factor’ peptide, an extracellular signal, which can also be called an ‘......