We establish four necessary and sufficient conditions for the existence of the Averch−Johnson effect in a generalized version of their famous model of the rate−of−return regulated firm. The four necessary and sufficient conditions are then compared to the two stronger sufficient conditions for the Averch−Johnson effect found in the literature. Our analysis also permits us to put to rest a somew...

S. H. NASR, An annotated bibliography of Islamic science, with the collaboration of W. C. Chittick, Teheran, Imperial Iranian Academy of Philosophy (publication no. 1), 1975, vol. 1, pp. lxiv, 432, 1-9 in Persian [no price stated]. Dr. Nasr is the author of many original books and papers on medieval Islamic science. This comprehensive annotated bibliography is the first of five projected volume...

Dina El Demellawy, Ahmed Nasr, Salem Alowami University of Northern Ontario School of Medicine, Thunder Bay, William Osler Health Care-Brampton Civic Hospital, Department of Pathology and Laboratory Medicine, Brampton, Ontario, Canada; University of Toronto, Department of Surgery, Toronto, Ontario, Canada; McMaster University, Department of Pathology and Molecular Medicine, Hamilton, Ontario, C...

Jaafar A. El-Awady,1,* Christopher Woodward,1 Dennis M. Dimiduk,1 and Nasr M. Ghoniem2 1Air Force Research Laboratory, Materials and Manufacturing Directorate, AFRL/RXLM Wright-Patterson AFB, Ohio 45433-7817, USA 2Mechanical and Aerospace Department, University of California, Los Angeles, California 90095-1597, USA Received 2 July 2009; revised manuscript received 12 August 2009; published 9 Se...

this paper reports some species of ameroseiidae from various habitats in different parts of iran. ameroseius bassolase (vargass, 2001)has been reported from iran, but it was a misidentification of sertitympanum aegyptiacus nasr & abow-awad, 1984. redescription of ameroseius lidiae bregetova, 1977 based on female specimens is also presented.

Improving quantity and quality of sugar beet yield using agronomic methods in summer cultivation | Reza Esmaeili, Rahim Mohammadian, Hossein Heidari Sharif Abad, Ghorban Noor Mohammadi Agricultural Journals