petri disease is responsible for grapevine decline and occurs wherever grapevines (vitis vinifera) are cultivated. phaeoacremonium species are among the principal hyphomycetes associated with petri disease. during 2009, a field survey was conducted throughout different vineyards in the fars province of iran in order to determine the fungal pathogens associated with the vine decline observed in ...

Kristin Calvert is Electronic Resources Librarian at Western Carolina University; e-mail: [email protected]. © 2015 Kristin Calvert, Attribution-NonCommercial (http://creativecommons.org/licenses/by-nc/3.0/) CC BY-NC. Despite the prevalence of academic libraries adopting web-scale discovery tools, few studies have quantified their effect on the use of library collections. This study measures the...

How does technological change affect the depletion of non-renewable natural resources? We argue that to answer this question it is necessary to account for the interaction between skill-biased technological change, population dynamics and their effects on natural resource use. Skill-biased technolgical change leads in a non-malthusian world to a decline in the long-run growth rate of the popula...

T paper uses a formal model to study how evaluation costs affect competition for resources in strategic factor markets. It finds that relative scarcity may not always benefit resource sellers. Rather, when competition among resource investors passes a certain threshold intensity, miscoordination among investors increases to the point that sellers’ expected profits decline. This paper extends th...

The present review of visual attentional processes and aging focuses on definitions of attention that emphasize some aspect of the control of information processing (selective attention) or the processing resources needed to drive these control processes (attentional capacity). Emphasis is placed on how increased adult age affects attentional mechanisms and how these age differences in attentio...

this article is an attempt to study two historical junctures in the history of iran: from the qajar era to the mashrooteh movement; and from the pahlavi era to the islamic revolution. the two junctures have been studied from different perspectives; however, this article concentrates only on how political legitimacy emerged and diminished in the the above-mentioned revolutions. the basic questio...