Historians and sociologists of science often identify the efflorescence of social stud ies of science with the work of postwar American intellectuals such as Robert K. Merton and Thomas S. Kuhn. They often also refer to the views of Michael Polanyi (1891-1976) on the roles of tacit knowledge, apprenticeship, social...
Accessions of common wheat (Triticum aestivum L. subsp. aestivum) from the USDA–ARS National Small Grains Collection (NSGC) are a resource for wheat scientists worldwide. The genetic diversity of the wheat core subset, representing approximately 10% of the collection’s 42,138 T. aestivum accessions, was examined using 390 diversity arrays technology (DArT)...
New sources of genetic diversity must be incorporated into plant breeding programs if they are to continue increasing grain
yield and quality, and tolerance to abiotic and biotic stresses. Germplasm collections provide a source of genetic and
phenotypic diversity, but characterization of these resources is required to increase their utility...
The Critical Depth Hypothesis formalized by Sverdrup in 1953 posits that
vernal phytoplankton blooms occur when surface mixing shoals to a depth shallower than a
critical depth horizon defining the point where phytoplankton growth exceeds losses. This
hypothesis has since served as a cornerstone in plankton ecology and reflects the...
The previously suggested protection from microbial attack of ripening nectar by the addition of glucose oxidase by the common honey bee, Apis mellifera L., has been found to occur in 9 other eusocial Hymenoptera from 3 superfamilies. The antibacterial effect results from the accumulation of hydrogen peroxide produced by the...
The hepatotoxic alkaloids known to occur in tansy ragwort (Senecio jacobaea L.) are also present in honey produced from the nectar of this species. These alkaloids, which include senecionine, seneciphvlline, jacoline, jaconine, jacobine, and jacozine, are potentially carcinogenic, mutagenic and teratogenic and may pose health hazards to the human consumer.
Oregon State University’s recent response to the crisis in scholarly communications recognizes that teaching faculty must be involved in communicating an appropriate response to their faculty colleagues. As authors, editors, and peer reviewers, direct faculty action can encourage publishers to lower costs and can enhance the availability of research. The...
A quantification of the number of adult worker Apis meltifera L. found on
combs of standard sizes at full holding capacity is reported. Estimating the holding capacity
of combs can assist in evaluating honey-bee colonies for pollination capabilities and also for
honey-production potentials
A statistically consistent and physically realistic approach for validating vector magnitude measurements is developed, based on a model for random measurement noise that explicitly satisfies a nonnegativity constraint for all “noisy” vector magnitude measurements. Numerical and analytic approximations are used to quantify the nonlinear functional dependence of sample conditional means...
As a result of the Chernobyl accident on April 25, 1986. possible radioactive contamination
of honey bees and cheese sampled in several areas of the United States were measured. Of
bees collected in May and June of 1986 in both Oregon and New York, only those from Oregon
showed detectable...