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Structures resembling remarkably preserved bacterial and cyanobacterial microfossils from about 3,465-million-year-old Apex cherts of the Warrawoona Group in Western Australia currently provide the oldest morphological evidence for life on Earth and have been taken to support an early beginning for oxygen-producing photosynthesis. Eleven species of(More)
Cyclical growth marks in cortical bone, deposited before attainment of adult body size, reflect osteogenetic changes caused by annual rhythms and are a general phenomenon in non-avian ectothermic and endothermic tetrapods. However, the growth periods of ornithurines (the theropod group including all modern birds) are usually apomorphically shortened to less(More)
The rock record provides us with unique evidence for testing models as to when and where cellular life first appeared on Earth. Its study, however, requires caution. The biogenicity of stromatolites and 'microfossils' older than 3.0 Gyr should not be accepted without critical analysis of morphospace and context, using multiple modern techniques, plus(More)
In this paper, we concern ourselves with the ways in which humans inhabit social machines: the structures and techniques which allow the enmeshing of multiple life traces within the flow of online interaction. In particular, we explore the distinction between transport and journeying, between networks and meshworks, and the different attitudes and modes of(More)
To engage with questions of musicality is to invite into consideration a complex network of topics beyond the mechanics of soundful interaction with our interfaces. Drawing on the work of Born, I sketch an outline of the reach of these topics. I suggest that practice-led methods, by dint of focussing on the lived experience where many of these topics(More)
  • R Y O L O G Y B I B L I O G R A P H Y, L Cai, +127 authors Y Zeng
  • 2005
Thyroid hormone controls multiple independent programs required for limb development in Xenopus laevis metamorphosis, expression changes at metamorphosis induced by thyroid hormone in Xenopus laevis tadpoles, Dev. asymmetry of the zebrafish epithalamus guides dorsoventral innvervation of the midbrain target, Lateralization of the vertebrate brain: taking(More)
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