Abstract In an increasingly digitalizing economy, e-commerce firms are known to internationalize faster and more irregularly than offline firms. However, it is important analyze how benefit from time-based internationalization decisions whether they still limited by institutional distances that said lose relevance, which we do not believe. We propose a theory-based framework the effects of firm...

Small RNA-mediated gene silencing pathways play important roles in the regulation of development, genome stability and various stress responses in many eukaryotes. Recently, a new type of small interfering RNAs (qiRNAs) approximately 20-21 nucleotides long in Neurospora crassa have been shown to mediate gene silencing in the DNA damage response (DDR) pathway. However, the mechanism for RNA sile...

Expression of a mouse atonal homologue, math1, defines cells with the potential to become sensory hair cells in the mouse inner ear (Science 284 (1999) 1837) and Notch signaling limits the number of cells that are permitted to adopt this fate (Nat. Genet. 21 (1999) 289; J. Neurocytol. 28 (1999) 809). Failure of lateral inhibition mediated by Notch signaling is associated with an overproduction ...

A framework for the representation of qualitative distances is developed inspired by previous work on qualitative orientation. It is based on the concept of \distance systems" consisting of a list of distance relations and a set of structure relations that describe how the distance relations in turn relate to each other. The framework is characterized by making the role of the \frame of referen...

The gltBY locus of E. coli, which codes for the two subunits of pyridine nucleotide dependent glutamate synthase, was used as a probe to detect homologues in genomic DNA of Synechococcus PCC6301, a unicellular cyanobacterium. Non-overlapping probes from gltB detected a single homologue with extensive homology, however gltY probes do not detect a strong homologue. The possibility that the gltB h...