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The Structural And Tectonic History Of The Mt. Formidable Region, North Cascades, Washington, Julia E. (Julia Eileen) Labadie 2010 Western Washington University

The Structural And Tectonic History Of The Mt. Formidable Region, North Cascades, Washington, Julia E. (Julia Eileen) Labadie

WWU Graduate School Collection

Deformation events associated with crustal thickening are preserved in the Mt. Formidable region of the North Cascades, a Cretaceous orogen and continental arc at the southern end of the Coast Plutonic Complex. The kinematics and timing of deformation in this area during burial, magmatism and metamorphism are the focus of this study. Rocks in the Mt. Formidable region span from at least the Late Triassic to the Early Cretaceous and include supracrustal units and associated metaplutonic rocks that have been interpreted as an island arc sequence. Rocks within the study region include the sub-arc Marblemount Meta-Quartz Diorite, the supra-arc metaclastic ...


The Impacts Of Land Use And Development Patterns On Water Quality Of The Belgrade Lakes, Ian M. McCullough 2010 Colby College

The Impacts Of Land Use And Development Patterns On Water Quality Of The Belgrade Lakes, Ian M. Mccullough

Honors Theses

The purpose of this study was to assess the impacts of patterns of land use and development on water quality in the Belgrade Lakes on a regional scale. Regional research and cooperation could identify key areas in the watershed where development or changing land use could have the greatest negative influences on lake water quality. Past work has centered on water chemistry, nutrient dynamics, development and economic factors but there has been no comprehensive analysis of land use and development history for the entire Belgrade Lakes Region. The Belgrade Lakes are a chain of 7 lakes in central Maine connected ...


Questioning Cultural Commons, Lawrence B. Solum 2010 Georgetown University Law Center

Questioning Cultural Commons, Lawrence B. Solum

Georgetown Law Faculty Publications and Other Works

In Constructing Commons in the Cultural Environment, Michael J. Madison, Brett M. Frischmann, and Katherine J. Strandburg offer an innovative and attractive vision of the future of cultural and scientific knowledge through the construction of “cultural commons,” which they define as “environments for developing and distributing cultural and scientific knowledge through institutions that support pooling and sharing that knowledge in a managed way.” The kind of “commons” they have in mind is modeled on the complex arrangement of social norms that allocate lobstering rights among fishermen in Maine and extends to arrangements such as patent pools, open-source software development (e ...


Diatom Stratigraphy Defining Ice Sheet Grounding Chronology, Ross Sea, Antarctica, Juan Manuel Chow 2010 Louisiana State University and Agricultural and Mechanical College

Diatom Stratigraphy Defining Ice Sheet Grounding Chronology, Ross Sea, Antarctica, Juan Manuel Chow

LSU Doctoral Dissertations

Evidence of Antarctic ice sheet behavior and paleoenvironment is often approached from proxy records because there is a dearth of direct records from Antarctica itself. The studies presented here seek to augment our knowledge of translations of the West Antarctic Ice Sheet’s (WAIS) marine termination based on direct biostratigraphic evidence. Diatom analyses were conducted from two areas of Ross Sea, Antarctica. In the first study, diatoms were used to constrain the age of diamictons from five seismic units in the Eastern Basin and thus expand our knowledge of WAIS behavior during the Southern Hemisphere Last Glacial Maximum (LGM). All ...


Copper-Catalyzed Diboration Of Ketones: Facile Synthesis Of Tertiary A-Hydroxyboronate Esters, Melissa McIntosh 2010 Western Washington University

Copper-Catalyzed Diboration Of Ketones: Facile Synthesis Of Tertiary A-Hydroxyboronate Esters, Melissa Mcintosh

WWU Graduate School Collection

The versatility of the C-B bond in organic synthesis has led to extensive development of new methods for the selective incorporation of boron into organic substrates. The incorporation of boron substituents alpha to heteroatoms provides direct entry into substrates analogous to those formed and utilized in the Matteson homologation reaction. Our group has explored the diboration of various ketones using the (ICy)CuOt-Bu catalyst developed by Sadighi and co-workers. We found that (ICy)CuOt-Bu could be generated in situ using 3 mol % (ICy)CuCl and 5 mol% NaOt-Bu (Scheme 1). This catalyst system was shown to cleanly afford the diboration ...


Origin And Geochemical Evolution Of Mafic Magmas From Mount Baker In The Northern Cascade Arc, Washington: Probes Into The Mantle And Crustal Processes, Nicole E. Moore 2010 Western Washington University

Origin And Geochemical Evolution Of Mafic Magmas From Mount Baker In The Northern Cascade Arc, Washington: Probes Into The Mantle And Crustal Processes, Nicole E. Moore

WWU Graduate School Collection

Five mafic lava flows located on the southern flank of Mount Baker are among the most primitive in the volcanic field. A comprehensive whole rock and mineral chemistry dataset (including major, trace, REE and isotopic abundances as well as petrography and mineral chemistry) reveals the diversity between these mafic lavas, which come from distinct sources and have been variably affected by ascent through the crust. Disequilibrium textures present in all of the lavas indicate that crustal processes have affected the magmas. Despite this evidence, mantle source characteristics have been retained, demonstrated by a lack of variation in the most highly ...


Seed Rain And Selected Species Germination And Growth Trials: Implications For Natural And Augmented Revegetation Of Post-Dam Elwha River Floodplain And Reservoir Sediments, James T. Michel 2010 Western Washington University

Seed Rain And Selected Species Germination And Growth Trials: Implications For Natural And Augmented Revegetation Of Post-Dam Elwha River Floodplain And Reservoir Sediments, James T. Michel

WWU Graduate School Collection

The removal of Glines Canyon and Elwha dams from the Elwha River in Olympic National Park, Washington State is scheduled to begin in 2011. This undertaking is among the largest planned dam removals and ecosystem restoration projects in the world. One of the challenges associated with this restoration will be to understand processes influencing revegetation and invasive species colonization on the sediments exposed by dam removal. To help characterize post-dam vegetation succession within the Elwha River floodplain and dewatered reservoirs, we undertook field collections of reservoir sediments and seed rain during summer 2008. We then conducted two greenhouse experiments 1 ...


Development Of A New Method For Measuring Metamorphic Kinetics, Jennifer B. (Jennifer Bernadette) Wright 2010 Western Washington University

Development Of A New Method For Measuring Metamorphic Kinetics, Jennifer B. (Jennifer Bernadette) Wright

WWU Graduate School Collection

Because garnet strongly fractionates Mn, spessartine (XSps) content can be treated as a rock-wide proxy for time. By using Sm-Nd isotopic dating to discretely date cores and rims of garnet crystals, I associated an age with a XSps content, and used this association to indirectly date a set of garnets in a subvolume from the specimen, a Grt-Chl-Pg-Bt-Ms schist from the Pinney Hollow Formation collected at Townshend Dam, VT. Using high-resolution X-ray computed tomographic data, two garnets were selected based on size and accessibility for Sm-Nd dating. These garnets yielded rim ages of 372.8±5.7 Ma and 372 ...


Kink Band Development In The Darrington Phyllite On Samish Island, Northwestern Washington, Rachel E. (Rachel Eliades) Dunham 2010 Western Washington University

Kink Band Development In The Darrington Phyllite On Samish Island, Northwestern Washington, Rachel E. (Rachel Eliades) Dunham

WWU Graduate School Collection

Kink bands are sharp-hinged monoclinal folds that are common contractional deformation features in fine-grained, foliated rocks. Two competing geometric models of kink band formation are mobile-hinge kinking, where a kink band grows by lateral expansion of kink band hinges, and fixed-hinge kinking, where a kink band initiates at a given width and rotates to accommodate shortening. This study investigates previously identified but poorly characterized kink bands in the Darrington Phyllite on Samish Island, northwestern Washington, in order to evaluate the applicability of each model and to characterize the complex geometries of kink bands in plan view. Two sets of kink ...


Viability Of Coho Salmon Oncorhynchus Kisutch In Relation To Streamflow Regulation In Terrell Creek, Washington, Ryan S. Vasak 2010 Western Washington University

Viability Of Coho Salmon Oncorhynchus Kisutch In Relation To Streamflow Regulation In Terrell Creek, Washington, Ryan S. Vasak

WWU Graduate School Collection

As salmon and trout populations decline in the Pacific Northwest, emphasis should be placed on restoration of any stream capable of producing salmon and trout. Terrell Creek is a small, dam regulated, independent drainage that historically produced at least four species of salmon and trout. Streamflow, regulated at the Lake Terrell dam, has typically been close to zero during the summer low flow period and probably affected salmon and trout population levels in the Creek. This study was designed to characterize the current fish assemblage in Terrell Creek, estimate coho salmon (Oncorhynchus kisutch) smolt production levels, identify factors that limit ...


Structural Characterization Of Cytoskeleton Regulating Protein Villin And Its C-Terminal Modular Domains, Danielle A. Pfaff 2010 Western Washington University

Structural Characterization Of Cytoskeleton Regulating Protein Villin And Its C-Terminal Modular Domains, Danielle A. Pfaff

WWU Graduate School Collection

Villin is a modular protein that regulates F-actin bundles in the microvilli of absorptive epithelial cells in the intestine. At low (10-100 nM) calcium levels, Villin is an F-actin bundling agent supporting the specialized brush border membrane of the absorptive epithelium. At intermediate micromolar calcium levels, Villin nucleates and caps the barbed ends of F-actin and in high (> 100 μM) calcium Villin is an F-actin severing agent (Bretsher & Weber, 1980; Glenney et al., 1980, 1981; Mooseker et al. 1980). The amino acid sequence of Villin has seven modular domains. The first six Villin domains (D1-D6) form a "core" of ~50% sequence identity ...


Habitat Modeling Using Path Analysis: Delineating Mountain Goat Habitat In The Washington Cascades, Tana Beus 2010 Western Washington University

Habitat Modeling Using Path Analysis: Delineating Mountain Goat Habitat In The Washington Cascades, Tana Beus

WWU Graduate School Collection

A 70-90% decline in mountain goat (Oreamnos americanus) populations in Washington State over the past few decades has spurred the need for an improved understanding of seasonal goat-habitat relationships. Habitat use data have been collected from 46 radio-collared mountain goats across their native range in Washington State. Using Geographical Information Systems (GIS), I explored relationships between use and availability of habitat. To overcome issues of autocorrelation, I compared actual mountain goat paths with available paths of matched identical spatial topology and used multi-scale path analysis to explore various ecologically informed relationships between landscape structure and the movements of mountain goats ...


Paleomagnetism And Rock Magnetism Of Remagnetized Carbonate Rocks From The Helena Salient, Southwest Montana, Benjamin F. (Benjamin Franklin) Baugh 2010 Western Washington University

Paleomagnetism And Rock Magnetism Of Remagnetized Carbonate Rocks From The Helena Salient, Southwest Montana, Benjamin F. (Benjamin Franklin) Baugh

WWU Graduate School Collection

The Helena salient is an arcuate curve in the southwest Montana fold and thrust belt, characterized by thin-skinned folding and thrusting. Ages from volcanic sills imply that deformation in the region began 77 million years ago during the Late Cretaceous (Harlan et al., 2008). This study investigates the nature of curvature associated with this salient using paleomagnetic techniques. Carbonate rocks of the Mississippian Madison Group were sampled from 24 sites across three folds: the Devil's Fence anticline, the Three Forks anticline and the Turner anticline (near Townsend, MT). Results from 16 sites have well defined, but very weak, magnetizations ...


Activation And Inhibition Of Gtpase Translation Factors On The Prokaryotic Ribosome, Justin D. Walter 2010 Western Washington University

Activation And Inhibition Of Gtpase Translation Factors On The Prokaryotic Ribosome, Justin D. Walter

WWU Graduate School Collection

Throughout all domains of life, each protein in a cell is synthesized by a remarkable biomolecular machine called the ribosome, in a process referred to as translation. This process is regulated by proteins called translation factors, several of which belong to the GTPase superfamily of enzymes which require the binding and subsequent hydrolysis of guanosine 5'-triphosphate (GTP) to execute their function. In contrast to the regulatory role of translation factors, protein biosynthesis is inhibited by several naturally occurring antibiotics. While our understanding of translation has been revolutionized by the recent elucidation of atomic-resolution x-ray crystal structures of the ribosome ...


Women In Glaciology, An Historical Perspective, Christina L. Hulbe, Weili Wang, Simon Ommanney 2010 Portland State University

Women In Glaciology, An Historical Perspective, Christina L. Hulbe, Weili Wang, Simon Ommanney

Geology Faculty Publications and Presentations

Women's history in glaciology extends as far back in time as the discipline itself, although their contributions to the scientific discourse have for all of that history been constrained by the sociopolitical contexts of the times. The first Journal of Glaciology paper authored by a woman appeared in 1948, within a year of the founding of the Journal, but it was not until the 1980s that women produced more than a few percent of Journal and Annals of Glaciology papers. Here international perspectives on women's participation in the sciences are presented in order to establish an economic and ...


Dielectrophoretic Choking Phenomenon In A Converging-Diverging Microchannel, Ye Ai, Shizhi Qian, Sheng Liu, Sang W. Joo 2010 Old Dominion University

Dielectrophoretic Choking Phenomenon In A Converging-Diverging Microchannel, Ye Ai, Shizhi Qian, Sheng Liu, Sang W. Joo

Mechanical & Aerospace Engineering Faculty Publications

Experiments show that particles smaller than the throat size of converging-diverging microchannels can sometimes be trapped near the throat. This critical phenomenon is associated with the negative dc dielectrophoresis arising from nonuniform electric fields in the microchannels. A finite-element model, accounting for the particle-fluid-electric field interactions, is employed to investigate the conditions for this dielectrophoretic (DEP) choking in a converging-diverging microchannel for the first time. It is shown quantitatively that the DEP choking occurs for high nonuniformity of electric fields, high ratio of particle size to throat size, and high ratio of particle's zeta potential to that of microchannel ...


Grounding-Line Basal Melt Rates Determined Using Radar-Derived Internal Stratigraphy, Ginny Catania, Christina L. Hulbe, Howard Conway 2010 University of Texas at Austin

Grounding-Line Basal Melt Rates Determined Using Radar-Derived Internal Stratigraphy, Ginny Catania, Christina L. Hulbe, Howard Conway

Geology Faculty Publications and Presentations

We use ice-penetrating radar data across grounding lines of Siple Dome and Roosevelt Island, Antarctica, to measure the spatial pattern, magnitude and duration of sub-ice-shelf melting at these locations. Stratigraphic layers across the grounding line show, in places, a large-amplitude downwarp at, or slightly downstream of, the grounding line due to sub-ice-shelf basal melting. Localized downwarping indicates that melting is transient; melt rates, or the grounding line position, have changed within a few hundred years in order to produce the observed stratigraphy. Elsewhere, no meltrelated stratigraphic signature is preserved. In part, heterogeneity in the amount of sub-ice-shelf melt is due ...


Propagation Of Long Fractures In The Ronne Ice Shelf Investigated Using A Numerical Model Of Fracture Propagation, Christina L. Hulbe, Christine Marie LeDoux, Kenneth M. Cruikshank 2010 Portland State University

Propagation Of Long Fractures In The Ronne Ice Shelf Investigated Using A Numerical Model Of Fracture Propagation, Christina L. Hulbe, Christine Marie Ledoux, Kenneth M. Cruikshank

Geology Faculty Publications and Presentations

Long rifts near the front of the Ronne Ice Shelf, Antarctica, are observed to begin as fractures along the lateral boundaries of outlet streams feeding the shelf. These flaws eventually become the planes along which tabular icebergs calve. The fractures propagate laterally as they advect through the shelf, with orientations that can be explained by the glaciological stress field. Fracture length remains constrained over much of the advective path, and locations of crack tip arrest are observed to coincide with structural boundaries, such as suture zones between ice from adjacent outlet glaciers. Geomechanical principles and numerical models demonstrate that in ...


Building Capacity For Sustainability Through Curricular And Faculty Development: A Learning Outcomes Approach, Jennifer H. Allen, Jeffrey J. Gerwing, Leslie G. McBride 2010 Portland State University

Building Capacity For Sustainability Through Curricular And Faculty Development: A Learning Outcomes Approach, Jennifer H. Allen, Jeffrey J. Gerwing, Leslie G. Mcbride

Environmental Science and Management Faculty Publications and Presentations

Portland State University has made integration of sustainability across its academic programs an institutional priority. This article describes the strategies that have been used to engage faculty in developing sustainability curricula, including adopting sustainability as one of eight campus-wide learning outcomes, incorporating sustainability into the general education program, providing faculty development, and developing a Graduate Certificate in Sustainability. The article shares lessons learned and next steps planned to advance Portland State's sustainability curricula.


Begin The Adventure : How To Break The Light Barrier By A.D. 2079 (3rd Ed.), Florentin Smarandache, Homer B. Tilton 2010 University of New Mexico

Begin The Adventure : How To Break The Light Barrier By A.D. 2079 (3rd Ed.), Florentin Smarandache, Homer B. Tilton

Mathematics and Statistics Faculty and Staff Publications

This edition, the third, has undergone a subtle name change, going from "A.D. 2070" in the title to A.D. 2079 as the timeline is fine-tuned. Because of the almost universal failure to recognize the distinction between physical (reality-based, dynamical) and visual (appearance-based, kinematical) variables, a tremendous volume of mythology arose over the past 100 years centered around Einstein's reality view of the distortions of special relativity. To get a sense of it, we point the reader to Paul J. Nahin's heroic book, Time Machines, 2nd ed.,- to these Tech Notes in particular: TN#6. "A High-Speed ...


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