For example, in the developing world, "conflict diamonds" or the drug trade influenced the development and proliferation of militias [48] described as a class of 'feral' insurgent [49], since their activism is a means of survival instead of an institutional mechanism to secure popular support.
For example, in the developing central nervous system of vertebrates, neurons arise from a simple tube of neuroepithelium, the cells of which possess a surface receptor called Notch.
For example, in the developing vertebrate eye, chemical signals from the retina probably cause adjacent cells to become lens cells instead of some other type of cells.
For example, in the developing D. melanogaster eye epithelium, MLC-mediated apical actin constriction drives formation of a dynamic signaling center in the developing eye imaginal disc called the morphogenetic furrow (MF) [14].
In contrast, mice that are deficient in Sulf1 or Sulf2 alone survive, albeit with some developmental defects [16].he story is complicated by the fact that in some cases, Sulf1 and Sulf2 are differentially expressed, for example in the developing mouse brain [41] and regenerating skeletal muscle [42] along with the fact that the Sulfs may have different substrate specificities in vivo [13].
For example, in the developing embryo the neural crest develops from a small portion of the dorsal neural tube (Saint-Germain et al., 2004; McKeown et al., 2005).
For example, in the developing murine retina, a VEGF gradient emanating from the avascular regions of the retina is essential for the sprouting angiogenesis.
For example, in the developing neural tube Sema3 and Shh act together to control the midline crossing of commissural axons (Parra and Zou, 2010).
For example, in the developing quail forelimb, nerves and vessels both respond with repulsion to Sema3A/Nrp1 signaling (Bates et al., 2003).
For example, in the developing auditory circuitry, neurons in the anteroventral cochlear nucleus (AVCN) undergo cell death if the cochlea is removed during a critical early post-natal period.
