In Germany, F. Ratzel sought to apply natural-scientific law in anthropogeography, a theme expanded by E. Semple in America, where W. M. Davis pronounced relationship of 'physiography' and 'ontography' (all life forms) as geography's unifying principle.
Two sub-themes expanded on this core theme.
In the first fugal section, the voices enter in the sequence tenor, alto, soprano I, bass, soprano II, expanding from middle range to the extreme parts, just as the theme expands from the repeated first notes to sighing motives leading upwards.
These themes were expanded and refined inductively and new themes were added to the initial framework [14].
These are variations on a theme, and in this film, the themes are expanded to include questions about our origins.
Its exploitation of found objects and images, recognizable materials, homey processes and familiar themes repeatedly expanded on, and domesticated, Marcel Duchamp's austere modernist principle of the ready-made.
In his subsequent corrections, Schubert elaborated on his themes and expanded them, giving them more 'musical space'", in Alfred Brendel's words.
These themes are expanded on in the remainder of this section.
These themes are expanded and illustrated with quotes below: Many students identified that participation had a positive influence on their PSI.
The content of each theme was expanded or reduced and sub-themes were formed by reflecting and bringing new questions to the text, such as: what does this specific statement say about experience?
