Index Catalog // ScholarsArchive@OSU

Planktic foraminifers of the California Current at 42°N : last glacial maximum and present

Creator:: Ortiz, Joseph D.
Abstract:: MOCNESS plankton tows, sediment traps and sedimentary material are used to determine the linkage between bio-physical forcing and foraminiferal response over a range of time scales from the event scale to the glacial interglacial cycle. The annually averaged planktic foraminiferal fauna of the modem California Current is a diverse community...
Resource Type:: Dissertation

Use of pineapple juice for inhibition of browning in apples

Creator:: Lozano de Gonzalez, Patricia
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Patricia Lozano-de-Gonzalez

A mechanized harvesting system simulation : input, output, limitations and capabilities

Creator:: Aedo-Ortiz, Dario M.
Abstract:: This study concerns the use of a discrete-event simulation model for analyzing the production of a mechanized forest harvest system. The simulation models a field collection data set of a harvester-forwarder system which was previously collected by the Forest Engineering Department of Oregon State University. The computer software consisted of...
Resource Type:: Masters Thesis

Comparison of Imbrie-Kipp transfer function and modern analog temperature estimates using sediment trap and core top foraminiferal faunas

Creator:: Ortiz, Joseph D. and Mix, Alan C.
Abstract:: We evaluate the reliability of statistical estimates of sea surface temperature (SST) derived from planktonic foraminiferal faunas using the modern analog method and the Imbrie‐Kipp method. Global core top faunas provide a calibration data set, while modern sediment trap faunas are used for validation. Linear regression of core top predicted...
Resource Type:: Article
Full Text:: Residual Error Slope Intercept 3.d' 2.6 0.92±0.16 4.2±2.8" 1.2 2.2 0.95±0.15 1.9±2.5 ORTIZ AND MIX

Data report : spectral reflectance observations from recovered sediments

Creator:: Ortiz, Joseph D., O'Connell, Suzanne, and Mix, Alan C.
Abstract:: Sediment spectral reflectance measurements were generated aboard the JOIDES Resolution during Ocean Drilling Program Leg 162 shipboard operations. The large size of the raw data set (over 1.3 gigabytes) and limited computer hard disk storage space precluded detailed analysis of the data at sea, although broad band averages were used...
Resource Type:: Article
Full Text:: FROM RECOVERED SEDIMENTS1 Joseph D. Ortiz,2 Suzanne O’Connell,3 and Alan Mix4 ABSTRACT Sediment

Environmental control of living symbiotic and asymbiotic foraminifera of the California Current

Creator:: Ortiz, Joseph D., Mix, Alan C., and Collier, Robert W.
Abstract:: Plankton tows from the northern California Current constrain biological and physical influences on living planktonic foraminifera. In this region, the dominant factors controlling the size and distribution of symbiotic and asymbiotic species are light and food. Food decreases offshore. Light, needed for symbiont photosynthesis, increases offshore as water turbidity lessens....
Resource Type:: Article

California Current of the last glacial maximum: Reconstruction at 42 °N based on multiple proxies

Creator:: Ortiz, Joseph D., Mix, Alan C., Hostetler, Steven W., and Kashgarian, Michaele
Abstract:: Multiple paleoceanographic proxies in a zonal transect across the California Current near 42°N record modern and last glacial maximum (LGM) thermal and nutrient gradients. The offshore thermal gradient, derived from foraminiferal species assemblages and oxygen isotope data, was similar at the LGM to that at present (warmer offshore), but average...
Resource Type:: Article

Diffuse spectral reflectance as a proxy for percent carbonate content in North Atlantic sediments

Creator:: Ortiz, Joseph D., Mix, Alan C., Harris, Sara E., and O'Connell, Suzanne
Abstract:: Diffuse reflectance records from Feni Drift in the North Atlantic faithfully record sediment percent carbonate. A high-resolution, reflectance-based age model for these sediments derived from an orbitally tuned age model for western equatorial Atlantic, Ceara Rise sediments was generated by spectral frequency mapping. Power spectra of the Feni Drift record...
Resource Type:: Article

Scent-making by nectar collecting honey bees

Creator:: Wetherwax, Peter B.
Abstract:: Honey bees mark artificial flowers with scents that advertise about the previous history of the flower to subsequent foragers. Unrewarding flowers are marked with a scent, after a single visit, that makes the flower less attractive to subsequent foragers. Previously rewarding flowers are initially less attractive than unvisited flowers but...
Resource Type:: Dissertation
Full Text:: to Crataigus , Tilia and Echium . Ecol Ent 4:9-22. Corbet, S.A., C.J.C. Kerslake, D. Brown, W.E

Thin-skinned tectonics on continent/ocean transitional crust, Sulaiman Range, Pakistan

Creator:: Jadoon, Ishtiaq Ahmad Khan
Abstract:: Surface and subsurface data from the Sulaiman thrust belt show that nearly all the 10 km thick sequence of dominantly platform (>7 km) and molasse strata is detached at the deformation front. These strata thicken tectonically to a minimum of 20 km in the hinterland of the Sulaiman fold belt...
Resource Type:: Dissertation
Full Text:: . Robert D. Lawrence Surface and subsurface data from the Sulaiman thrust belt show that nearly all the

ScholarsArchive@OSU

Planktic foraminifers of the California Current at 42°N : last glacial maximum and present

Use of pineapple juice for inhibition of browning in apples

A mechanized harvesting system simulation : input, output, limitations and capabilities

Comparison of Imbrie-Kipp transfer function and modern analog temperature estimates using sediment trap and core top foraminiferal faunas

Data report : spectral reflectance observations from recovered sediments

Environmental control of living symbiotic and asymbiotic foraminifera of the California Current

California Current of the last glacial maximum: Reconstruction at 42 °N based on multiple proxies

Diffuse spectral reflectance as a proxy for percent carbonate content in North Atlantic sediments

Scent-making by nectar collecting honey bees

Thin-skinned tectonics on continent/ocean transitional crust, Sulaiman Range, Pakistan

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