Portable laser absolute gravimeter study Final report

Design and development of portable laser Doppler gravimeter mode

Morphometric Analysis and Comparisons of Electrophoretic Protein Profiles of the Scutellaria ovata Hill (Lamiaceae) Complex in West Virginia, Virginia and Ohio with Emphasis on Shale Barren Taxa

Elements of the Scutellaria ovata complex in the eastern United States are reported to include S. ovata var. pseudoarguta, S. ovata var. rugosa, S. ovata var. virginiana and S. ovata ssp. ovata. All but S. ovata ssp. ovata occur in the shale barren habitat of eastern West Virginia and western Virginia. S. ovata var. pseudoarguta has been proposed as a threatened element in North America. A morphometric study of specimens collected in West Virginia, Virginia and Ohio was undertaken to determine which characters are most useful in separating taxa in the complex. Nineteen characters were assessed from 104 herbarium specimens and the data subjected to principal component analysis, canonical discriminant analysis and Duncan•s model of analysis of variance. Specimens were grouped according to collection site in order to investigate intrapopulation and interpopulation variation. The results of this part of the study showed significant differences between western West Virginia and Ohio material and plants collected in eastern West Virginia and western Virginia. Variation between sites in West Virginia and Virginia was minimal. Plants were also grouped taxonomically according to variety or subspecies. The statistical procedures showed plant height, leaf length and width, petiole length, internode length, stem width and leaf cordateness to be the best characters for separating the subcomplex S. ovata var. pseudoarguta - S. ovata var. rugosa from S. ovata var. virginiana and S. ovata ssp. ovata. The latter taxa are separated by leaf width, floral bract length and width, first internode length, raceme length and raceme internode length. S. ovata var. pseudoarguta and S. ovata var. rugosa were shown to be very similar morphologically and separate only by leaf pubescence. Studies incorporating electrophoretic protein profiles were also carried out in order to analyze biochemical differences among members of the S. ovata complex. Taxa included in the morphometric study were examined along with a single population of Scutellaria elliptica Muhl., which was used as an outlier species. One dimensional SDS-Polyacrylamide gelelectrophoresis was used to separate soluble leaf proteins from 40 specimens representing four taxa. lntrapopulation and interpopulation variation was assessed as was variation within and between taxonomic groups. The results showed a high degree of homogeneity within the complex and the outlier element. Some differences were seen between taxa and populations, but variation was inconsistent and not significant enough to justify taxonomic separation based on protein profile data

Letter from W. A. H. Ewing Gay to David de Verteuil

Correspondence about acquiring promotional copies of the winning nove

Care and hitches for work horses

May, 1939."Revision of Circular 287.

Australian Pasture Systems: The Perennial Compromise

Dryland salinity, soil acidification and weed herbicide resistance challenge traditional agricultural production systems in south Australia. The pasture component of such systems rely on annuals like Trifolium subterraneum and Medicago spp. Replacing annual with perennial pastures allows some redress of the sustainability challenges, but few well-adapted species are available (Ewing & Dolling 2003). A range of perennial species are under evaluation to supplement current options. Some of these new perennial pastures may need modified production systems that allow full expression of their productive potential, especially when integrated with annual crops including cereals, pulses and oil seeds. Integrated systems rely on spatial or temporal segregation of pastures from crops. The necessary characteristics of plants for likely systems are discussed

Understanding and Defining Addiction in an Honors Context

Exploration and development of identity, autonomy, sexuality, academic functioning, and peer relationships are important age-appropriate tasks of adolescence and emerging adulthood (Baer & Peterson; Cicchetti & Rogosch; Erikson). During college, this developmental stage may manifest as questioning prior beliefs and assumptions and exploring fresh philosophies and behaviors (Schulenberg & Maggs). Many emerging adults try out what they believe are different facets of adult life. Some of the requisite experimentation may include risk-taking behavior, including experimentation with alcohol, cigarettes, and marijuana (Baer & Peterson; Shedler & Block; Winters). College provides opportunities to experiment with potentially addictive substances at peer-run social events that often include alcohol and other substances (Schulenberg & Maggs). The combination of a mindset poised for exploration and a developmental period with enhanced opportunity for experimental behavior makes college a unique time to explore the high-risk behaviors that are prevalent within emerging adult communities. While large courses may usher university students through the research about what constitutes addictions, honors programs offer an invaluable resource for exploring more fully these value-laden, highrisk, and timely questions. In small, discussion-based honors classes, emerging adults are able to actively explore their questions, thoughts, and previous conceptions about addiction in a manner that would not be possible in larger classes. The students emerge from my 300-level honors class—titled “Yeah, I Like It, but I’m Not Addicted”: Exploring the Meanings and Consequences of Addiction—with a more thorough understanding of addiction as well as analytical skills that will help them navigate both academic and personal contexts in college

Australian Pasture Systems: The Perennial Compromise

Dryland salinity, soil acidification and weed herbicide resistance challenge traditional agricultural production systems in south Australia. The pasture component of such systems rely on annuals like Trifolium subterraneum and Medicago spp. Replacing annual with perennial pastures allows some redress of the sustainability challenges, but few well-adapted species are available (Ewing & Dolling 2003). A range of perennial species are under evaluation to supplement current options. Some of these new perennial pastures may need modified production systems that allow full expression of their productive potential, especially when integrated with annual crops including cereals, pulses and oil seeds. Integrated systems rely on spatial or temporal segregation of pastures from crops. The necessary characteristics of plants for likely systems are discussed

The Missouri plan of sheep improvement

"March, 1940""Missouri ranks as the leading state in the corn belt in the production of early spring lambs. A relatively short winter with sufficiently low temperatures to hold sheep parasites in check, and an early spring, make conditions nearly ideal for the production of February lambs. Pasture from bluegrass and the small grains (wheat, rye, barley and oats mixed with rape) supplies early spring grazing for ewes. A liberal milk flow as a result of good pasture enables February and March lambs to reach the late May and early June market. These natural conditions and the proximinity of markets give Missouri sheep raisers advantages not common in other sections of the corn belt."--First paragraph.T.A. Ewing, and J.W. Burc