Index Catalog // ScholarsArchive@OSU

Characterization of the transition to the progamic phase in Zea mays pollen

Creator:: Smyth, Johanna C.
Abstract:: The transition of mature pollen to the progamic phase represents an important step in the regulation of plant sexual reproduction. The progamic phase encompasses the initiation of pollen tube germination, growth of the pollen tube through the stigma (the silk in maize) and concludes with fertilization of the female gametophyte....
Resource Type:: Dissertation
Full Text:: Transition to the Progamic Phase in Zea mays Pollen by Johanna C. Smyth A

Metabolic balance of coastal Antarctic waters revealed by autonomous pCO₂ and ΔO₂/Ar measurements

Creator:: Tortell, Philippe D., Asher, Elizabeth C., Ducklow, Hugh W., Goldman, Johanna A. L., Dacey, John W. H., Grzymski, Joseph J., Young, Jodi N., Kranz, Sven A., Bernard, Kim S., and Morel, François M. M.
Abstract:: We use autonomous gas measurements to examine the metabolic balance (photosynthesis minus respiration) of coastal Antarctic waters during the spring/summer growth season. Our observations capture the development of a massive phytoplankton bloom and reveal striking variability in pCO₂ and biological oxygen saturation (ΔO₂/Ar) resulting from large shifts in community metabolism...
Resource Type:: Article

Geometric Visualization of Self-Propulsion in a Complex Medium

Creator:: Hatton, Ross L., Ding, Yang, Choset, Howie, and Goldman, Daniel I.
Abstract:: Combining geometric mechanics theory, laboratory robotic experiment, and numerical simulation, we study the locomotion in granular media of the simplest noninertial swimmer, the Purcell three-link swimmer. Using granular resistive force laws as inputs, the theory relates translation and rotation of the body to shape changes (movements of the links). This...
Resource Type:: Article
Full Text:: . Mosauer, Copeia 2 (1932) 72. [6] R. D. Maladen, Y. Ding, P. B. Umbanhowar, A. Kamor, and D. I. Goldman, J

Prevalence of Exertional Rhabdomyolysis in Endurance Horses in the Pacific Northwestern United States

Creator:: Wilberger, Melissa S., Mckenzie, Erica C., Payton, Mark E., Rigas, Johanna. D., and Valberg, Stephanie J.
Abstract:: SUMMARY - REASONS FOR PERFORMING STUDY: Exertional rhabdomyolysis (ER) is a reported syndrome in competing endurance horses; however the prevalence and cause of ER in this population has not been defined. OBJECTIVES: To determine the prevalence of ER in a sample of endurance racing horses, and to investigate factors, including...
Resource Type:: Article
Full Text:: group of horses receiving a fat supplement (7,219 ± 44,102 vs. 514 ± 230 U/L), and all four horses

Nature as capital: Advancing and incorporating ecosystem services in United States federal policies and programs

Creator:: Schaefer, Mark, Goldman, Erica, Bartuska, Ann M., Sutton-Grier, Ariana, and Lubchenco, Jane
Abstract:: The concept of nature as capital is gaining visibility in policies and practices in both the public and private sectors. This change is due to an improved ability to assess and value ecosystem services, as well as to a growing recognition of the potential of an ecosystem services approach to...
Resource Type:: Article
Full Text:: ecosystem services in United States federal policies and programs Schaefer, M., Goldman, E., Bartuska, A

Ontogenetic and spatial variability in trophic biomarkers of juvenile saffron cod (Eleginus gracilis) from the Beaufort, Chukchi and Bering Seas

Creator:: Copeman, Louise A., Laurel, Benjamin J., Boswell, Kevin M., Sremba, Angela L., Klinck, Karolin, Heintz, Ron A., Vollenweider, Johanna J., Helser, Thomas E., and Spencer, Mara L.
Abstract:: Climate models indicate the Arctic will undergo dramatic environmental change with forecasted increases in temperature and river runoff. Saffron cod (Eleginus gracilis) is abundant in nearshore waters and appears in the diet of many Arctic sea birds and marine mammals; however, little is known about its early ecology and consequently...
Resource Type:: Article
Full Text:: . Copeman1,2 • Benjamin J. Laurel3 • Kevin M. Boswell4 • Angie L. Sremba2 • Karolin Klinck2 • Ron A. Heintz5

Sidewinding with minimal slip: Snake and robot ascent of sandy slopes

Creator:: Marvi, Hamidreza, Gong, Chaohui, Gravish, Nick, Astley, Henry, Travers, Matthew, Hatton, Ross L., Mendelson, Joseph R., III, Choset, Howie, Hu, David L., and Goldman, Daniel I.
Abstract:: Limbless organisms like snakes can navigate nearly all terrain. In particular, desert-dwelling sidewinder rattlesnakes (C. cerastes) operate effectively on inclined granular media (like sand dunes) that induce failure in field-tested limbless robots through slipping and pitching. Our laboratory experiments reveal that as granular incline angle increases, sidewinder rattlesnakes increase the...
Resource Type:: Article
Full Text:: , A. Savu, D. I. Goldman, Biology Letters 6, 398 (2010). 34. T. L. Hedrick, Bioinspiration

How Good Science and Stories Can Go Hand-In-Hand

Creator:: Leslie, Heather M., Goldman, Erica, McLeod, Karen L., Sievanen, Leila, Balasubramanian, Hari, Cudney-Bueno, Richard, Feuerstein, Amanda, Knowlton, Nancy, Lee, Kai, Pollnac, Richard, and Samhouri, Jameal F.
Abstract:: What do you say when you have only a minute to explain to a municipal official why keeping track of the number of bird species found in a park may help make decisions about park management? Talk of significant differences among treatments or testing theory will likely meet with glazed...
Resource Type:: Article
Full Text:: How Good Science and Stories Can Go Hand-In-Hand HEATHER M. LESLIE,∗† ERICA GOLDMAN,‡ KAREN L. MCLEOD

Clovis Age Western Stemmed Projectile Points and Human Coprolites at the Paisley Caves

Creator:: Jenkins, Dennis L., Davis, Loren G., Stafford, Thomas W., Jr., Campos, Paula F., Hockett, Bryan, Jones, George T., Cummings, Linda Scott, Yost, Chad, Connolly, Thomas J., Yohe, Robert M., II, Gibbons, Summer C., Raghavan, Maanasa, Rasmussen, Morten, Paijmans, Johanna L. A., Hofreiter, Michael, Kemp, Brian M., Barta, Jodi Lynn, Monroe, Cara, Gilbert, M. Thomas P., and Willerslev, Eske
Abstract:: The Paisley Caves in Oregon record the oldest directly dated human remains (DNA) in the Western Hemisphere. More than 100 high-precision radiocarbon dates show that deposits containing artifacts and coprolites ranging in age from 12,450 to 2295 ¹⁴C years ago are well stratified. Western Stemmed projectile points were recovered in...
Resource Type:: Article
Full Text:: . Yohe II,9 Summer C. Gibbons,9 Maanasa Raghavan,3 Morten Rasmussen,3 Johanna L. A. Paijmans,10 Michael

A study of the impact of collaborative and simulation sessions on learning lean principles and methods

Creator:: Choomlucksana, Juthamas
Abstract:: This research is aimed at obtaining a better understanding of the impact of the use of collaborative and simulation sessions for learning lean principles and methods. Study participants were enrolled in a Lean Manufacturing System Engineering (IE436/536) course at Oregon State University or at three other business and engineering universities...
Resource Type:: Dissertation
Full Text:: Toni L. Doolen This research is aimed at obtaining a better understanding of the impact of the

ScholarsArchive@OSU

Characterization of the transition to the progamic phase in Zea mays pollen

Metabolic balance of coastal Antarctic waters revealed by autonomous pCO₂ and ΔO₂/Ar measurements

Geometric Visualization of Self-Propulsion in a Complex Medium

Prevalence of Exertional Rhabdomyolysis in Endurance Horses in the Pacific Northwestern United States

Nature as capital: Advancing and incorporating ecosystem services in United States federal policies and programs

Ontogenetic and spatial variability in trophic biomarkers of juvenile saffron cod (Eleginus gracilis) from the Beaufort, Chukchi and Bering Seas

Sidewinding with minimal slip: Snake and robot ascent of sandy slopes

How Good Science and Stories Can Go Hand-In-Hand

Clovis Age Western Stemmed Projectile Points and Human Coprolites at the Paisley Caves

A study of the impact of collaborative and simulation sessions on learning lean principles and methods

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