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Ashland, OR, United States

Southern Oregon University is a public liberal arts college located in Ashland, Oregon, United States. Founded in 1926, it was formerly known as Southern Oregon College and Southern Oregon State College . SOU offers criminology, natural science, including environmental science, Shakespearean studies and theatre arts programs. It is headquarters for Jefferson Public Radio and public access station Rogue Valley Television. SOU is a member of the Council of Public Liberal Arts Colleges. Wikipedia.

Slawta J.N.,Southern Oregon University
Health promotion practice

This article describes the inclusion of Be a Fit Kid in the fourth-grade curriculum. Be a Fit Kid is a fitness-emphasized physical activity and heart-healthy nutrition education program for elementary school children. Five parent-education lessons were offered and nutrition workbooks were distributed to parents. Following the 10-week intervention, significant improvements in fitness, body fat, nutrition knowledge, dietary habits, and levels of lipids and lipoproteins were observed in the intervention group compared with baseline levels. Changes in fitness, body fat, and nutrition knowledge were significant compared with the control group. These findings suggest that comprehensive physical activity and nutrition programs included in the school curriculum may be effective for improving cardiovascular health and reducing future risk for lifestyle-related diseases. Source

Abrahams S.C.,Southern Oregon University
Acta Crystallographica Section B: Structural Science

The 62 entries listed in ICSD release 2009/1 under polar space group P31m correspond to 31 families of inorganic crystal structures, some with only one member. Coordinate analysis reveals, over a wide confidence range, 11 of these families as ferroelectric candidates. One includes the well known improper ferroelectric GASH (guanidinium aluminum sulfate hexahydrate), [(C(NH 2)3)Al(SO4)2(H2O) 6], another the previously predicted ferroelectric CsNO3 phase II. Those remaining include K3Nb3B2O 12, the minerals schairerite, galeite and lizardite 1T, LaNi 5D6 and γ-CaNi5D6.1, Ca(OCl)2Ca(OH)2, [N(CH3)4]2Mo 3S13, Li17Ag3Sn6 and Cs3As5O9. Candidate selection is based upon detecting an approach by the reported atomic arrangement to the symmetry of a corresponding nonpolar supergroup. A further 13 families are typified by their reduced predictive properties, with four others likely to remain polar at higher temperatures and the remaining three noted as having a unit cell larger than reported or a misassigned space group. The primary sources of uncertainty in structurally based predictions of ferroelectricity are the reliability of the underlying structural determination and the upper limit assigned to the cationic displacement magnitudes required to achieve supergroup symmetry. © 2010 International Union of Crystallography. Source

Roden J.S.,Southern Oregon University | Roden J.S.,Australian National University | Farquhar G.D.,Australian National University
Tree Physiology

Seedlings of a conifer (Pinus radiata D. Don) and a broad leaf angiosperm (Eucalyptus globulus Labill.) were grown for 100 days in two growth cabinets at 45 or 65 relative humidity. The seedlings were exposed to treatments designed to modify carbon assimilation rates and capacities, stomatal conductance and transpiration to test conceptual models that attempt to clarify the interpretation of carbon isotope discrimination (Δ13C) by using oxygen isotope enrichment (Δ18O). Differences in relative humidity and within-cabinet treatments (including lower irradiance, lower nitrogen inputs, higher leaf temperature and lower moisture status than control seedlings) produced significant differences in assimilation rates, photosynthetic capacities, stomatal conductance, leaf transpiration rates and leaf evaporative enrichment. The dual-isotope approach accurately interpreted the cause of variation in wood cellulose Δ13C for some of the treatments, but not for others. We also tested whether we could use Δ13C variation to constrain the interpretation of ω18O variation. Carbon isotope discrimination appears to be influenced by transpiration (providing information on leaf evaporative enrichment), but the results did not provide a clear way to interpret such variation. The dual-isotope approach appears to be valid conceptually, but more work is needed to make it operational under different scenarios. © 2012 The Author. Source

Odion D.C.,University of California at Santa Barbara | Odion D.C.,Southern Oregon University | Moritz M.A.,University of California at Berkeley | Dellasala D.A.,National Center for Conservation Science and Policy
Journal of Ecology

1. The earliest examples of alternative community states in the literature appear to be descriptions of natural vegetation said to both depend on and promote fire. Nonetheless, alternative community states determined by fire have rarely been documented at landscape scales and in natural vegetation. This is because spatial autocorrelation may confound analyses, experimental manipulations are difficult and a long-term perspective is needed to demonstrate that alternative community states can persist for multiple generations. 2. We hypothesized that alternative community states occur in a largely forested landscape in the Klamath Mountains, north-western California, USA, where shrub-dominated sclerophyllous vegetation establishes after fire that is lethal to forests. Forests redevelop if succession is not arrested by fire. Our hypothesis would require that sclerophyll and forest vegetation states each be maintained by different self-reinforcing relationships with fire. 3. To test this hypothesis, we examined pyrogenicity of forest and sclerophyll vegetation as a function of time since the previous fire, accounting for spatial autocorrelation. Fire exclusion served as a de facto experimental treatment. Areas where fire had proceeded to occur served as controls. 4. Our findings are consistent with the occurrence of alternative community states established and maintained by different self-reinforcing feedbacks with fire. Sclerophyll vegetation was more pyrogenic, especially where time-since-fire (TSF) was relatively short, a favourable relationship for this fire-dependent vegetation. Forests were much less pyrogenic, especially where TSF was long, favouring their maintenance. Fire exclusion therefore has led to afforestation and rapid retreat of fire-dependent vegetation. 5. Synthesis: We have documented how different self-reinforcing combustion properties of forest and sclerophyll vegetation can naturally produce alternative states coexisting side-by-side in the same environment. Such fire-mediated alternative states may be underappreciated, in part, because they are difficult to demonstrate definitively. In addition, the dynamics they exhibit contrast with common perceptions that fire hazard increases deterministically with TSF in forests and shrublands. Addressing the impacts of fire exclusion will probably require a management shift to better allow fire to perform its ecological role in shaping landscape diversity and maintaining fire-dependent biota. © 2009 British Ecological Society. Source

Jones G.V.,Southern Oregon University
Acta Horticulturae

Climate is a pervasive factor in the success of all agricultural systems, influencing whether a crop is suitable to a given region, largely controlling crop production and quality, and ultimately driving economic sustainability. Climate's influence on agribusiness is never more evident than with viticulture and wine production where climate is arguably the most critical aspect in ripening fruit to optimum characteristics to produce a given wine style. To understand climate's role in growing winegrapes and wine production one must consider 1) the weather and climate structure necessary for optimum quality and production characteristics, 2) the climate suitability to different winegrape cultivars, 3) the climate's variability in wine producing regions, and 4) the influence of climate change on the structure, suitability, and variability of climate. This survey article discusses our knowledge of these relationships and details the significance of climate change on the wine industry. Source

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