Index Catalog // ScholarsArchive@OSU

The evolution of student understanding of the concept of derivative

Creator:: Zandieh, Michelle J.
Abstract:: This research seeks to answer the question, "What does it mean for a student to understand the concept of derivative?" A structured way to describe an individual student's understanding of derivative is developed and applied to analyzing the evolution of that understanding for each of nine high school seniors during...
Resource Type:: Dissertation

The story of Oregon and its people

Creator:: Chapman, Charles Hiram, 1859-
Abstract:: Gerald W. Williams Collection
Resource Type:: Book
Full Text:: Bv CHARLES H. CHAPMAN, PH. D. CHICAGO o. P. BARNES, PUBLISHER r Copyright, 1909, BY 0. P

Sorption and transformation of the reactive tracers resazurin and resorufin in natural river sediments

Creator:: Lemke, D., González-Pinzón, R., Liao, Z., Wöhling, T., Osenbrück, K., Haggerty, R., and Cirpka, O. A.
Abstract:: Resazurin (Raz) and its reaction product resorufin (Rru) have increasingly been used as reactive tracers to quantify metabolic activity and hyporheic exchange in streams. Previous work has indicated that these compounds undergo sorption in stream sediments. We present laboratory experiments on Raz and Rru transport, sorption, and transformation, consisting of...
Resource Type:: Article

Hypervitaminosis A : effects on reproduction and interactions with pyrrolizidine alkaloids

Creator:: Moghaddam, Mehran Fallah
Abstract:: In the first experiment the minimum dietary toxic levels of vitamin A were determined in pregnant rabbits over three parities. The treatments consisted of basal diet plus 10,000, 30,000, 60,000, and 90,000 IU/Kg added vitamin A. The basal diet was formulated to be free of vitamin A and beta-carotene; rice...
Resource Type:: Masters Thesis
Full Text:: Hypervitaminosis A: Effects on Reproduction and

Oregon State University Mark O. Hatfield Marine Science Center, 1965-1988 : the first two decades

Creator:: Rogers, Pamela A. and Hatfield Marine Science Center
Resource Type:: Other
Full Text:: helpful responses. I especially wish to thank Dr. Lavern Weber for entrusting me with such a fascinating

A field comparison of multiple techniques to quantify groundwater–surface-water interactions

Creator:: González-Pinzón, Ricardo, Ward, Adam S., Hatch, Christine E., Wlostowski, Adam N., Singha, Kamini, Gooseff, Michael N., Haggerty, Roy, Harvey, Judson W., Cirpka, Olaf A., and Brock, James T.
Abstract:: Groundwater–surface-water (GW-SW) interactions in streams are difficult to quantify because of heterogeneity in hydraulic and reactive processes across a range of spatial and temporal scales. The challenge of quantifying these interactions has led to the development of several techniques, from centimeter-scale probes to whole-system tracers, including chemical, thermal, and electrical...
Resource Type:: Article
Full Text:: , potentially undergoing ki- netic mass exchange (Toride et al. 1993). Cirpka et al. (2007) presented a

Vitamin A potency of Oregon butter

Creator:: Weswig, Paul H. (Paul Henry), 1912-, Haag, J. R. (Joseph Roy), 1896-, and Simmons, Ruth
Abstract:: Published December 1949. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: 0 Z 1 o 0 0 0 0 0 I > / / — — — SEASONAL VARIATION I N VITAMIN A POTENCY OF OREGON BUTTER

Stable isotopes (¹⁸O/¹⁶O) and ⁸⁷Sr/⁸⁶Sr ratios in pore fluids of the Chile Triple Junction accretionary prism : implications for diagenesis and fluid migration

Creator:: Zheng, Yan, Froelich, Philip N., Torres, Marta E., and Dia, Aline N.
Abstract:: Oxygen and strontium isotopic composition of sedimentary pore fluids obtained by drilling at the Chile Triple Junction have been used to obtain information on the diagenesis and transport mechanisms of fluids. Samples were collected from three sites located on an east-west transect of the pre-collision zone (Sites 859, 860, and...
Resource Type:: Article
Full Text:: high as 0.7‰ SMOW and a 87Sr/8°Sr ratio as low as 0.706 in the interval from 400 to 500 mbsf, a

Fingered Flow in Two Dimensions 2. Predicting Finger Moisture Profile

Creator:: Selker, J., Parlange, J.-Y., and Steenhuis, T.
Abstract:: An exact integral solution for the moisture profile in growing fingers in sandy soil is derived from Richards' equation. The solution provides moisture content along a finger as a function of position and time and provides applicable results, including the calculation of the asymptotic matric potential of a growing finger...
Resource Type:: Article
Full Text:: seek a similarity solution for (1) of the form O(z - vt), where 0 is taken to be the average moisture

O&C Counties

Creator:: Hooley, Darlene
Abstract:: Folder includes information that pertains to the O&C Forest Transfer Act.
Resource Type:: Other
Full Text:: Lands and the Wagon Road Grant Lands are scattered in a checkerboard pattern across the O&C Counties

ScholarsArchive@OSU

The evolution of student understanding of the concept of derivative

The story of Oregon and its people

Sorption and transformation of the reactive tracers resazurin and resorufin in natural river sediments

Hypervitaminosis A : effects on reproduction and interactions with pyrrolizidine alkaloids

Oregon State University Mark O. Hatfield Marine Science Center, 1965-1988 : the first two decades

A field comparison of multiple techniques to quantify groundwater–surface-water interactions

Vitamin A potency of Oregon butter

Stable isotopes (¹⁸O/¹⁶O) and ⁸⁷Sr/⁸⁶Sr ratios in pore fluids of the Chile Triple Junction accretionary prism : implications for diagenesis and fluid migration

Fingered Flow in Two Dimensions 2. Predicting Finger Moisture Profile

O&C Counties

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

Conference Section/Track

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Funding Body

Language

License

Location

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search