Nematodes within the Xiphinema americanum species complex are economically important because they vector
nepoviruses which cause considerable damage to a variety of agricultural crops. The taxonomy of X. americanum species
complex is controversial, with the number of putative species being the subject of debate. Accurate phylogenetic
knowledge of this group...
Full Text:
, Dee R. Denver2,
AshleighB. Smythe3
1USDA-ARS Horticultural Crops Research Laboratory, Corvallis
Nematodes within the Xiphinema americanum species complex are economically important because they vector
nepoviruses which cause considerable damage to a variety of agricultural crops. The taxonomy of X. americanum species
complex is controversial, with the number of putative species being the subject of debate. Accurate phylogenetic
knowledge of this group...
Nematodes within the Xiphinema americanum species complex are economically important because they vector nepoviruses which cause considerable damage to a variety of agricultural crops. The taxonomy of X. americanum species complex is controversial, with the number of putative species being the subject of debate. Accurate phylogenetic knowledge of this group...
Current literature supports the benefits of participation in extracurricular activities(Barnett & Weber, 2008). However, a report from the U.S. Government AccountabilityOffice (GAO) found that students with disabilities participated in athletics to varyingdegrees, but at consistently lower rates than students without disabilities (US GovernmentAccountability Office, 2010). In January 2013, in response...
In public high schools, drug and alcohol prevention programs and policies have been ineffective in their deterrence of drug and alcohol use and abuse (Skager R., 2007). It is important to consider the needs of students and to create an effective, student centered drug and alcohol prevention program and policy....
This thesis consists of extensions of results on a perpetual American swaption problem. Companies routinely plan to swap uncertain benefits with uncertain costs in the future for their own benefits. Our work explores the choice of timing policies associated with the swap in the form of an optimal stopping problem....
Ungulates comprise some of the most well researched and intensely managed wildlife populations on earth. As such, they are recognized as ideal study subjects for developing and modifying management tools or theories (Danell et al. 1994, Shipley 2010). An introduced moose (Alces alces gigas) population on the Copper River Delta...
This dissertation consists of three papers studying optimization, conservation
and valuation of contingent claims in economic resource nianagement under
uncertainty.
In the first paper the Markovian optinial policies are studied for resource
management in a finite time horizon. Under sonic conditions, in particular, when
the prices are stochastic and there...
The "coupon collection problem" refers to a class of occupancy problems,
in which j identical items are distributed, independently and at random,
to n cells, with no restrictions on multiple occupancy. Identifying the cells as
coupons, a coupon is "collected" if the cell is occupied by one or more of...
This paper concerns a question that frequently occurs in various applications: Is any dispersal coupling of stable discrete linear systems, also stable? Although it has been known this is not the case, we shall identify a reasonably diverse class of systems for which it is true. We shall employ the...
