EXAMINING THE DYNAMICS OF COOPERATION BETWEEN COMPETING FIRMS IN THEIR R&D ACTIVITIES (R&D CO-OPETITION)

RD-flatness and RD-injectivity

It is proved that every commutative ring whose RD-injective modules are Σ-RD-injective is the product of a pure semi-simple ring and a finite ring. A complete characterization of commutative rings for which each artinian (respectively simple) module is RD-injective, is given. These results can be obtained by using the properties of RD-flat modules and RD-coflat modules which are respectively th...

Early markers of retinal degeneration in rd/rd mice.

PURPOSE In the rd/rd mouse, the cell death of rod photoreceptors has been correlated to abnormal levels of the cyclic nucleotide cGMP within photoreceptors. Given that cGMP is required for opening of the cationic channels, there is the possibility that a high cGMP concentration would maintain these channels open, at a high energy cost for the retina. METHODS We investigated whether cation cha...

the relationship between learners critical thinking ability and their performance in the reading sections of the tofel and ielts test

the study reflected in this thesis aims at finding out relationships between critical thinking (ct), and the reading sections of tofel and ielts tests. the study tries to find any relationships between the ct ability of students and their performance on reading tests of tofel and academic ielts. however, no research has ever been conducted to investigate the relationship between ct and the read...

Collaboration and competition in export firms: The link between co-opetition and export innovation

1. Introduction Co-opetition (cooperation with competitors) has recently emerged and gained its popularity in the last several decades, emphasizing better usage of comparative advantage, value creation, and sharing R&D risks and costs (Dittrich and Duysters, 2007; Ritala, 2012). Extant literature on co-opetition provides evidence that this strategy can positively affect innovation and Generic s...

Proceedings of the 3 rd