this paper investigates the short- run and long-run effects of government size and exports on the economic growth of iran as a developing oil export based economy for the period of 1974 - 2008 using an autoregressive distributed lags (ardl) framework. a modified form of feder (1982) and subsequently ram’s (1986) model has been applied to include both government size and exports in growth equati...

We trace the evolution of root climbing and scrambling in Dissochaeteae and Sonerileae, two closely related groups that comprise the majority of Old World climbing Melastomataceae.The morphological and anatomical adaptations of the different climbers are interpreted in the context of a phylogeny based on chloroplast (cp) DNA sequences of the ndhF gene, generated for 31 representatives of Dissoc...

Morphogenesis, the study of how forms arise in biology, has attracted scientists for aeons. A century ago, D’Arcy Wentworth Thompson crystallized this question in his opus On Growth and Form (Thompson, 1917) using a series of biological examples and geometric and physical analogies to ask how biological forms arise during development and across evolution. In light of the advances in molecular a...