Andreas Niebel,1 Jean-Jacques Bono,1,2 Raoul Ranjeva,2 and Julie V. Cullimore1 Laboratoire de Biologie Moléculaire des Relations Plantes-Microorganismes, UMR 215 INRA-CNRS, BP 27, 31326 Castanet-Tolosan Cédex, France; Signaux et Messages Cellulaires chez les Végétaux, UMR 5546, CNRS-Université Paul Sabatier, 118 Route de Narbonne, 31162 Toulouse Cédex, France. Received 20 May 1996. Accepted 30 ...

Neotropical Rhagoletis species are arranged in four groups: nova,psalida,striatella and ferruginea, which include 18 species. On both sides of the Andes, the evolution of morphological differences among these groups has been suggested to be related to the Andes uplift process. In order to test this hypothesis, a phylogenetic analysis of morphological and molecular data was performed. The result...

The construct of path dependence has been introduced to challenge neoclassical economics (David, 1985). By referring to the history of economic processes Paul David explained, that unintended consequences of action can lead to a lock-in which is potentially inefficient. The cause behind these processes leading to inefficiency Paul David named the mechanism of increasing returns. As examples tec...

Yong-qing Li,1 Peter Lynam,2 Min Xiao,3 and Paul J. Edwards1 1Advanced Telecommunications Research Centre, Faculty of Information Sciences and Engineering, University of Canberra, P.O. Box 1, Belconnen, ACT 2616, Australia 2Department of Physics, University College, University of NSW, ADFA, ACT 2600, Australia 3Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701 (Receive...