Index Catalog // ScholarsArchive@OSU

Greater sage-grouse vital rates after wildfire

Creator:: Foster, Lee J., Dugger, Katie M., Hagen, Christian A., and Budeau, David A.
Abstract:: Greater sage-grouse (Centrocercus urophasianus) have been subject to long-term and continuing declines in population and habitat since European settlement of western North America. Increased wildfire activity constitutes a primary threat to the species in western portions of their range, with documented declines in wildfire-affected populations. Following a 187,000-ha wildfire in...
Resource Type:: Article
Full Text:: Article Greater Sage-Grouse Vital Rates After Wildfire LEE J. FOSTER,1,2 Oregon Cooperative Fish and

Trade-offs in ecosystem impacts from nanomaterial versus organic chemical ultraviolet filters in sunscreens

Creator:: Hanigan, David, Truong, Lisa, Schoepf, Jared, Nosaka, Takayuki, Mulchandani, Anjali, Tanguay, Robert L., and Westerhoff, Paul
Abstract:: Both nanoparticulate (nZnO and nTiO(2)) and organic chemical ultraviolet (UV) filters are active ingredients in sunscreen and protect against skin cancer, but limited research exists on the environmental effects of sunscreen release into aquatic systems. To examine the trade-offs of incorporating nano particles (NPs) into sunscreens over the past two...
Resource Type:: Article
Full Text:: - mental concentrations would be in the low 10s of mg/L (David Holbrook et al., 2013; Gondikas et al., 2014

Early adulthood: A developmental perspective on suicide prevention and intervention

Creator:: Kerr, David C. R.
Abstract:: Early adulthood is a time of transition when large segments of the population embrace new roles and show decreases in behaviors and problems thought to underlie suicide risk. Still, other segments show emergent or worsening psychopathology per-haps exacerbated by age-related disconnection from prior relational and institutional supports. Suicide prevention efforts...
Resource Type:: Article
Full Text:: Suicide Prevention and Intervention David C. R. Kerr, Ph.D. Associate Professor

Intergenerational influences on early alcohol use: Independence from the problem behavior pathway

Creator:: Kerr, David C. R., Capaldi, Deborah M., Pears, Katherine C., and Owen, Lee D.
Abstract:: Conduct problems are a general risk factor for adolescent alcohol use. However, their role in relation to alcohol-specific risk pathways of intergenerational transmission of alcohol use is not well understood. Further, the roles of alcohol-specific contextual influences on children's early alcohol use have been little examined. In a 20-year prospective,...
Resource Type:: Article
Full Text:: early alcohol use: Independence from the problem behavior pathway DAVID C. R. KERR,a,b DEBORAH M

Ultraviolet Radiation Influences Perch Selection by a Neotropical Poison-Dart Frog

Creator:: Kats, Lee B., Bucciarelli, Gary M., Schlais, David E., Blaustein, Andrew R., and Han, Barbara A.
Abstract:: Ambient ultraviolet-B radiation can harm amphibian eggs, larvae and adults. However, some amphibians avoid UV-B radiation when given the opportunity. The strawberry poison dart frog, Oophaga pumilio, is diurnal and males vocalize throughout the day in light gaps under forest canopies that expose them to solar radiation. Previous studies have...
Resource Type:: Article
Full Text:: Selection by a Neotropical Poison-Dart Frog Lee B. Kats1*, Gary M. Bucciarelli2, David E. Schlais1, Andrew R

Tree-ring analysis of the fungal disease Swiss needle cast in western Oregon coastal forests

Creator:: Lee, E. Henry, Beedlow, Peter A., Waschmann, Ronald S., Burdick, Connie A., and Shaw, David C.
Abstract:: Swiss needle cast (SNC), an important fungal disease of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), has increased in severity throughout its natural and introduced range over the last half century. The role of climate change and forest management practices in the increase is unclear. We analyzed tree-ring chronologies from six late-successional...
Resource Type:: Article
Full Text:: cast in western Oregon coastal forests E. Henry Lee, Peter A. Beedlow, Ronald S. Waschmann, Connie A

Mechanistic Insights into Validoxylamine A 7’-Phosphate Synthesis by VldE Using the Structure of the Entire Product Complex

Creator:: Cavalier, Michael C., Yim, Young-Sun, Asamizu, Shumpei, Neau, David, Almabruk, Khaled H., Mahmud, Taifo, and Lee, Yong-Hwan
Abstract:: The pseudo-glycosyltransferase VldE catalyzes non-glycosidic C-N coupling between an unsaturated cyclitol and a saturated aminocyclitol with the conservation of the stereochemical configuration of the substrates to form validoxylamine A 7'-phosphate, the biosynthetic precursor of the antibiotic validamycin A. To study the molecular basis of its mechanism, the three-dimensional structures of...
Resource Type:: Article
Full Text:: -Sun Yim1., Shumpei Asamizu2, David Neau3, Khaled H. Almabruk2, Taifo Mahmud2, Yong-Hwan Lee1* 1

Internal transcribed spacer region evolution in Larix and Pseudotsuga (Pinaceae)

Creator:: Gernandt, David S. and Liston, Aaron
Abstract:: The nuclear ribosomal DNA (nrDNA) internal transcribed spacer (ITS) region has been characterized in the sister genera Larix and Pseudotsuga (Pinaceae). Complete sequences were obtained for seven species of Larix from North America and Eurasia and five species of Pseudotsuga from western North America and eastern Asia. ITS region lengths...
Resource Type:: Article
Full Text:: –723. 1999. INTERNAL TRANSCRIBED SPACER REGION EVOLUTION IN LARIX AND PSEUDOTSUGA (PINACEAE)1 DAVID S

Utilization of inorganic and organic nitrogen by bacteria in marine systems

Creator:: Wheeler, Patricia A. and Kirchman, David L.
Abstract:: The relative contribution of various inorganic and organic forms of nitrogen to the nitrogen requirements of picoplankton was examined with 15N tracers. Size fractionation was used to measure uptake by <1-μM size microorganisms, and inhibitors of protein synthesis were used to separate procaryotic from eucaryotic nitrogen uptake, Picoplankton utilized mainly...
Resource Type:: Article
Full Text:: WHEELER, PATRICIA A., AND DAVID L. KIRCHMAN. Utilization of

QTL mapping of powdery mildew susceptibility in hop (Humulus lupulus L.)

Creator:: Henning, John A., Townsend, M. Shaun, Gent, David H., Bassil, Nahla, Matthews, Paul, Buck, Emily, and Beatson, Ron
Abstract:: Hop powdery mildew [Podosphaera macularis (Wallr.) U. Braun & S. Takam.] is best controlled via the production of resistant varieties. Recent evidence supports selection against plant susceptibility genes to fungal pathogens as a more durable resistance mechanism than selection for resistance genes. The objective of this study was to identify...
Resource Type:: Article
Full Text:: technology (DArT) for genotyping of Humulus lupulus L. Acta hort (ISHS) 848:59–64 Wittenberg AH, Van Der Lee

ScholarsArchive@OSU

Greater sage-grouse vital rates after wildfire

Trade-offs in ecosystem impacts from nanomaterial versus organic chemical ultraviolet filters in sunscreens

Early adulthood: A developmental perspective on suicide prevention and intervention

Intergenerational influences on early alcohol use: Independence from the problem behavior pathway

Ultraviolet Radiation Influences Perch Selection by a Neotropical Poison-Dart Frog

Tree-ring analysis of the fungal disease Swiss needle cast in western Oregon coastal forests

Mechanistic Insights into Validoxylamine A 7’-Phosphate Synthesis by VldE Using the Structure of the Entire Product Complex

Internal transcribed spacer region evolution in Larix and Pseudotsuga (Pinaceae)

Utilization of inorganic and organic nitrogen by bacteria in marine systems

QTL mapping of powdery mildew susceptibility in hop (Humulus lupulus L.)

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