Low physical activity levels and high serum C-reactive protein (CRP) levels are risk factors for coronary artery disease (CAD) in both men and women. However, postmenopausal women who take hormone replacement therapy (HRT) may have increased risk of CAD because of HRT-related increases in serum CRP. There are two manuscripts...
The purpose of this study is to investigate the
attitudes toward mathematics of prospective elementary
teachers and their basic understanding of mathematics.
Two hundred fourteen subjects, representing prospective teachers from Oregon State University and Western
Oregon State College participated in this study. The
responses of this total population to the...
Ultrastructural analysis and chemical inhibition studies were
carried out on first cleavage of Mytilus zygotes to determine possible
relationships between the mitotic apparatus and the cortex during
polar lobe formation.
The stages of mitosis correlated with the appearance of the
polar lobe were first determined by light microscopy. The polar...
Using 15N-labeled NH4+, we assessed the time-course of NH4+ uptake, the parameters of saturation kinetics, and the rates of incorporation of NH4+ into trichloroacetic acid-insoluble material by Chesapeake Bay phytoplankton. The amount of NH4+ taken up by the phytoplankton increased linearly with time for 2 h for all samples growing...
The uptake of methylammonium (MA) by Chesapeake Bay phytoplankton was measured in short term experiments by using the 14C radioisotope. This uptake was inversely related to ambient NH4+ concentrations, and the specificity for uptake of both substrates was demonstrated by competitive inhibition. At stations with low ambient NH4+, MA uptake...
Vineyard design and management methods that create vine balance will help sustain productive yields, achieve desired fruit quality and maintain vine health. Different climates across Oregon will affect strategies for achieving vine balance, but the basic approach is the same everywhere.
The grape rust mite [Calepitrimerus vitis (Acari: Eriophyidae)] is an important pest of grapevines (Vitis sp.) in grape-growing regions around the world. A rapid method for extracting eriophyoid mites was adapted from earlier studies to provide integrated pest management (IPM) consultants and commercial growers with a practical, efficient, and reliable...
Canopy management is critical to successful winegrape production. Canopy management begins with vineyard design and includes decisions about soil, water, cover cropping, fertilization and weed control. Shoot thinning, leaf removal, hedging and crop thinning are also part of canopy management.