The cloning of the founding member of the Hedgehog (HH) family of secreted proteins two
decades ago inaugurated a field that has diversified to encompass embryonic development …

The generation of distinct classes of neurons at defined positions is a fundamental step in
the development of the vertebrate central nervous system. Recent work has begun to reveal …

Neuronal subtype specification in the vertebrate neural tube is one of the best-studied
examples of embryonic pattern formation. Distinct neuronal subtypes are generated in a …

Distinct classes of motor neurons and ventral interneurons are generated by the graded
signaling activity of Sonic hedgehog (Shh). Shh controls neuronal fate by establishing …

During vertebrate development, the specification of distinct cell types is thought to be
controlled by inductive signals acting at different concentration thresholds. The degree of …

Distinct classes of neurons are generated at defined positions in the ventral neural tube in
response to a gradient of Sonic Hedgehog (Shh) activity. A set of homeodomain …

While the constructs of protean and boundaryless careers have informed career theory for
years, rigorous empirical examinations of these career models have lagged behind. This …

The boundaryless and protean career concepts are compared in this article. It is suggested
that the theories can be more finely delineated to produce more effective theory and …

We have produced a cell line which lacks the protein tyrosine kinase JAK1 and is completely
defective in interferon response. Complementation of this mutant with JAK1 restored the …

Recently, Fugate et al.[Fugate, M., Kinicki, AJ, & Ashforth, BE (2004). Employability: A
psycho-social construct, its dimensions, and applications. Journal of Vocational Behavior, 65 …