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Aqueous Red-Emitting Silicon Nanoparticles For Cellular Imaging: Consequences Of Protecting Against Surface Passivation By Hydroxide And Water For Stable Red Emission, Sheng-Kuei Chiu, Beth Ann Manhat, William J.I. Debenedetti, Anna L. Brown, Katye Fichter, Tania Vu, Micah Eastman, Jun Jiao, Andrea Mitchell Goforth Jan 2013

Aqueous Red-Emitting Silicon Nanoparticles For Cellular Imaging: Consequences Of Protecting Against Surface Passivation By Hydroxide And Water For Stable Red Emission, Sheng-Kuei Chiu, Beth Ann Manhat, William J.I. Debenedetti, Anna L. Brown, Katye Fichter, Tania Vu, Micah Eastman, Jun Jiao, Andrea Mitchell Goforth

Chemistry Faculty Publications and Presentations

Stable, aqueous, red-to-near infrared emission is critical for the use of silicon nanoparticles (Si NPs) in biological fluorescence assays, but such Si NPs have been difficult to attain. We report a synthesis and surface modification strategy that protects Si NPs and preserves red photoluminescence (PL) in water for more than 6 mo. The Si NPs were synthesized via high temperature reaction, liberated from an oxide matrix, and functionalized via hydrosilylation to yield hydrophobic particles. The hydrophobic Si NPs were phase transferred to water using the surfactant cetyltrimethylammonium bromide (CTAB) with retention of red PL. CTAB apparently serves a double role …

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Automated Extraction And Classification Of Time-Frequency Contours In Humpback Vocalizations, Hui Ou, Whitlow W.L. Au, Lisa M. Zurk, Marc O. Lammers Jan 2013

Automated Extraction And Classification Of Time-Frequency Contours In Humpback Vocalizations, Hui Ou, Whitlow W.L. Au, Lisa M. Zurk, Marc O. Lammers

Electrical and Computer Engineering Faculty Publications and Presentations

A time-frequency contour extraction and classification algorithm was created to analyze humpback whale vocalizations. The algorithm automatically extracted contours of whale vocalization units by searching for gray-level discontinuities in the spectrogram images. The unit-to-unit similarity was quantified by cross-correlating the contour lines. A library of distinctive humpback units was then generated by applying an unsupervised, cluster-based learning algorithm. The purpose of this study was to provide a fast and automated feature selection tool to describe the vocal signatures of animal groups. This approach could benefit a variety of applications such as species description, identification, and evolution of song structures. The …

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Intelligent Modeling And Verification, Gangming Luo, Graziano Chesi, Xiaoyu Song, Xiaojing Yang Jan 2013

Intelligent Modeling And Verification, Gangming Luo, Graziano Chesi, Xiaoyu Song, Xiaojing Yang

Electrical and Computer Engineering Faculty Publications and Presentations

System modeling tends to have many complex features, and uncertainties often lead to numerous complications and influence many important aspects related to its applications. Intelligent modeling merges mathematical and computer based approaches, and it utilizes pioneering new scientific methods and cutting-edge technologies.

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A Study Of Traditional Activities In The Exit Glacier Area Of Kenai Fjords National Park, Douglas Deur, Karen Brewster, Rachel Mason Jan 2013

A Study Of Traditional Activities In The Exit Glacier Area Of Kenai Fjords National Park, Douglas Deur, Karen Brewster, Rachel Mason

Anthropology Faculty Publications and Presentations

Kenai Fjords National Park (KEFJ) occupies roughly 1,760 square miles on the Kenai Peninsula in southcentral Alaska. Sitting adjacent to the community of Seward, the park was established in 1980 under the Alaska National Interest Lands Conservation Act of 1980 (ANILCA). The central portion of the park contains the Harding Icefield, from which no fewer than 38 active glaciers exit into valleys and tidewater locations surrounding the park. Of these glaciers, Exit Glacier is the most publicly accessible, and the only park glacier with road access from the town of Seward. A number of individuals and families from the Seward …

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An Evaluation Of Data Collected By Middle School And College-Level Students In Stream Channel Geomorphic Assessment, Martin D. Lafrenz Jan 2013

An Evaluation Of Data Collected By Middle School And College-Level Students In Stream Channel Geomorphic Assessment, Martin D. Lafrenz

Geography Faculty Publications and Presentations

This project tested the accuracy and repeatability of geomorphic stream channel assessments conducted by two different middle school classes from the Walt Morey Middle School in Troutdale, OR and college students from Portland State University in Portland, OR. Each group surveyed the same three cross-sections in Fairview Creek, a tributary to the Lower Columbia River, in order to assess stream channel geometry, discharge, composition of the bed material, and water quality. The three student groups were all able to accurately document the stream channel geometry, including stream width and mean depth, indicating that these data can be successfully collected by …

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Curriculum Change 2013-2014, Portland State University Dec 2012

Curriculum Change 2013-2014, Portland State University

Bulletin & Curriculum Change Documents

No abstract provided.

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Use Of International Hydrographic Organization Tidal Data For Improved Tidal Prediction, Songwei Qi Dec 2012

Use Of International Hydrographic Organization Tidal Data For Improved Tidal Prediction, Songwei Qi

Dissertations and Theses

Tides are the rise and fall of water level caused by gravitational forces exerted by the sun, moon and earth. Understanding sea level variation and its impact currents is very important especially in coastal regions. With knowledge of the tide-generating force and boundary conditions, hydrodynamic models can be used to predict or model tides in coastal regions. However, these models are not sufficiently accurate, and in-situ tide gauge data may be used to improve them in coastal regions. The International Hydrographic Organization (IHO) tidal data bank consists of over 4000 tide gauge stations scattered all around the globe, most of …

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Stream-Associated Amphibian Habitat Assessment In The Portland-Vancouver Metropolitan Region, Andrew Evans Dietrich Dec 2012

Stream-Associated Amphibian Habitat Assessment In The Portland-Vancouver Metropolitan Region, Andrew Evans Dietrich

Dissertations and Theses

This study assessed the influence of landscape development on stream-associated amphibians in forested riparian areas within the Portland-Vancouver metropolitan region. Human alteration of landscapes may dramatically affect the ecology of neighboring aquatic systems. It was hypothesized that lotic amphibians would be negatively associated with greater amounts of landscape development and positively associated with forested area within the surrounding watershed. Thirty-seven 1st-3rd order streams were sampled between June 21st and September 21st in 2011. Streams potentially providing adequate habitat for stream-obligate amphibians were randomly selected. Amphibians were surveyed along 30-meter stream transects using an active-cover search (ACS). Environmental variables associated with …

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Characterization Of The Red Bluff Landslide, Greater Cascade Landslide Complex, Columbia River Gorge, Washington, James Robert Randall Dec 2012

Characterization Of The Red Bluff Landslide, Greater Cascade Landslide Complex, Columbia River Gorge, Washington, James Robert Randall

Dissertations and Theses

Located in the Columbia River Gorge, The Red Bluff Landslide (18.8 km2) is one of four large landslides that make up the Cascade Landslide Complex. In its current form, the Red Bluff Landslide is a post-Missoula Flood feature made up of two components: an active upper lobe (8.6 km2) that is translational, creeping to the south at 25 cm/yr and spreading laterally to the east at 6 cm/yr over a semi-fixed portion (10.2 km2) of the Red Bluff Landslide area that has been "smoothed" by Missoula Floods. The upper active lobe is the landslide debris accumulated since Missoula Flood time …

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Predictors Of Student's Attitudes Toward Science Literacy, Irina I. Holden Dec 2012

Predictors Of Student's Attitudes Toward Science Literacy, Irina I. Holden

Communications in Information Literacy

Being information and science literate are crucial in an age when scientific developments influence the political arena and vice versa. In order to become active and responsible citizens, students must understand such issues as global warming and stem cell research. Furthermore, they must be lifelong learners, capable of researching and educating themselves about new scientific developments. These are some of the complex issues that information literacy educators must address. This article reports on the results of a survey of student's attitudes towards science literacy and lifelong learning, and on variables associated with their attitudes. Most of the students' attitudes were …

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Engineering Integration: Building A Quick And Effective Faculty Seminar, Kate Peterson, Jon Jeffryes Dec 2012

Engineering Integration: Building A Quick And Effective Faculty Seminar, Kate Peterson, Jon Jeffryes

Communications in Information Literacy

In the spring of 2010, the Science & Engineering Library of the University of Minnesota-Twin Cities partnered with the Information Literacy Librarian and offered a faculty seminar to the College of Science and Engineering. The seminar's goals included 1.) refreshing and expanding faculty's knowledge of information and 21st century literacies and 2.) creating a community of faculty committed to developing student skills in finding, evaluating and synthesizing information in their academic coursework and into their professional careers. Overall, the seminar increased faculty understanding of services and expertise of the libraries, and 21st century literacies. It also developed and strengthened ties …

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An Investigation Of Urban Mobile Source Aerosol Using Optical Properties Measured By Crdt/N: Diesel Particulate Matter And The Impact Of Biodiesel, Monica Elizabeth Wright Dec 2012

An Investigation Of Urban Mobile Source Aerosol Using Optical Properties Measured By Crdt/N: Diesel Particulate Matter And The Impact Of Biodiesel, Monica Elizabeth Wright

Dissertations and Theses

Mobile source emissions are a major contributor to global and local air pollution. Governments and regulatory agencies have been increasing the stringency of regulations in the transportation sector for the last ten years to help curb transportation sector air pollution. The need for regulations has been emphasized by scientific research on the impacts from ambient pollution, especially research on the effect of particulate matter on human health. The particulate emissions from diesel vehicles, diesel particulate matter (DPM) is considered a known or probable carcinogen in various countries and increased exposure to DPM is linked to increased cardiovascular health problems in …

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Sustainable Municipal Operations: Independence, Oregon, Portland State University. Hatfield School Of Government. Center For Public Service, Ed Gallagher, Dave Rouse, Dennis Kurtz, Tanya Johnston Dec 2012

Sustainable Municipal Operations: Independence, Oregon, Portland State University. Hatfield School Of Government. Center For Public Service, Ed Gallagher, Dave Rouse, Dennis Kurtz, Tanya Johnston

Center for Public Service Publications and Reports

Portland State University, Hatfield School of Government (PSU), and Northwest Energy Efficiency Alliance (NEEA), has formed a partnership to develop Sustainable Municipal Operations Plans that documents sustainability and energy management best practices. The goal of this partnership is to determine how a City/municipality can actively manage energy as a controllable expense by following a predetermined operation protocol. The PSU team developed a framework of best practices for sustainable municipal operations in different categories including facilities, fleet, purchasing, operations and the work environment. After identifying pilot jurisdictions, the team applied these best practices to the current operations of local governments in …

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Sustainable County Operations: Yamhill County, Oregon, Portland State University. Hatfield School Of Government. Center For Public Service, Ed Gallagher, Dave Rouse, Dennis Kurtz, Tanya Johnston Dec 2012

Sustainable County Operations: Yamhill County, Oregon, Portland State University. Hatfield School Of Government. Center For Public Service, Ed Gallagher, Dave Rouse, Dennis Kurtz, Tanya Johnston

Center for Public Service Publications and Reports

Portland State University, Hatfield School of Government (PSU), and Northwest Energy Efficiency Alliance (NEEA), has formed a partnership to develop Sustainable Municipal Operations Plans that documents sustainability and energy management best practices. The goal of this partnership is to determine how a county/municipality can actively manage energy as a controllable expense by following a predetermined operation protocol. The PSU team developed a framework of best practices for sustainable municipal operations in different categories including facilities, fleet, purchasing, operations and the work environment. After identifying pilot jurisdictions, the team applied these best practices to the current operations of local governments in …

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Engaging The Community Through An Undergraduate Biomedical Physics Course, Grace Van Ness, Ralf Widenhorn Dec 2012

Engaging The Community Through An Undergraduate Biomedical Physics Course, Grace Van Ness, Ralf Widenhorn

Physics Faculty Publications and Presentations

We report on the development of an undergraduate biomedical physics course at Portland State University, motivated by both student interest and the desire of the university?s Physics Department to provide an interdisciplinary intermediate-level physics course. The course was developed through the community engagement of physicians, clinical researchers, and basic science researchers. Class meetings were a combination of regular and guest lectures, hands-on exercises, web-based activities, class discussions, and a student poster information session for patrons at a local science museum. The course inspired students to engage in research projects in biomedical physics that enhance their understanding of science and education …

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Cytoskeletal Strains In Modeled Optohydrodynamically Stressed Healthy And Diseased Biological Cells, Sean S. Kohles, Yu Liang, Asit K. Saha Dec 2012

Cytoskeletal Strains In Modeled Optohydrodynamically Stressed Healthy And Diseased Biological Cells, Sean S. Kohles, Yu Liang, Asit K. Saha

Mechanical and Materials Engineering Faculty Publications and Presentations

Controlled external chemomechanical stimuli have been shown to influence cellular and tissue regeneration/degeneration, especially with regards to distinct disease sequelae or health maintenance. Recently, a unique three-dimensional stress state was mathematically derived to describe the experimental stresses applied to isolated living cells suspended in an optohydrodynamic trap (optical tweezers combined with microfluidics). These formulae were previously developed in two and three dimensions from the fundamental equations describing creeping flows past a suspended sphere. The objective of the current study is to determine the full-field cellular strain response due to the applied three-dimensional stress environment through a multiphysics computational simulation. In …

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Evolution Of Ensemble Data Assimilation For Uncertainty Quantification Using The Particle Filter-Markov Chain Monte Carlo Method, Hamid Moradkhani, Caleb Matthew Dechant, Soroosh Sorooshian Dec 2012

Evolution Of Ensemble Data Assimilation For Uncertainty Quantification Using The Particle Filter-Markov Chain Monte Carlo Method, Hamid Moradkhani, Caleb Matthew Dechant, Soroosh Sorooshian

Civil and Environmental Engineering Faculty Publications and Presentations

Particle filters (PFs) have become popular for assimilation of a wide range of hydrologic variables in recent years. With this increased use, it has become necessary to increase the applicability of this technique for use in complex hydrologic/land surface models and to make these methods more viable for operational probabilistic prediction. To make the PF a more suitable option in these scenarios, it is necessary to improve the reliability of these techniques. Improved reliability in the PF is achieved in this work through an improved parameter search, with the use of variable variance multipliers and Markov Chain Monte Carlo methods. …

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The Distribution And Reproductive Success Of The Western Snowy Plover Along The Oregon Coast - 2012, David J. Lauten, Kathleen J. Castelein, J. Daniel Farrar, Adam A. Kotaich, Eleanor P. Gaines Dec 2012

The Distribution And Reproductive Success Of The Western Snowy Plover Along The Oregon Coast - 2012, David J. Lauten, Kathleen J. Castelein, J. Daniel Farrar, Adam A. Kotaich, Eleanor P. Gaines

Institute for Natural Resources Publications

From 5 April – 21 September 2012 we monitored the distribution, abundance and productivity of the federally Threatened Western Snowy Plover (Charadrius nivosus nivosus) along the Oregon coast. From north to south, we surveyed and monitored plover activity at Sutton Beach, Siltcoos River estuary, the Dunes Overlook, North Tahkenitch Creek, Tenmile Creek, Coos Bay North Spit, Bandon Snowy Plover Management Area, New River HRA and adjacent lands, and Floras Lake. Our objectives for the Oregon coastal population in 2012 were to: 1) estimate the size of the adult Snowy Plover population, 2) locate plover nests, 3) determine nest …

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The Influence Of Market Proximity On National Forest Hazardous Fuels Treatments, Max Nielsen-Pincus, Susan Charnley, Cassandra Moseley Dec 2012

The Influence Of Market Proximity On National Forest Hazardous Fuels Treatments, Max Nielsen-Pincus, Susan Charnley, Cassandra Moseley

Environmental Science and Management Faculty Publications and Presentations

The US Department of Agriculture Forest Service's focus on hazardous fuels reduction has increased since the adoption of the National Fire Plan in 2001. However, appropriations for hazardous fuels reduction still lag behind wildfire suppression spending. Offsetting fuels treatment costs through biomass utilization or by using innovative administrative mechanisms such as stewardship contracting are two approaches to stretching appropriated dollars further across the landscape. We use fuels treatment data (n = 8,451 locations) to ask how wood- processing infrastructure influences where and how much hazardous fuels treatments, biomass utilization, and stewardship contracting occur on national forests in Oregon and Washington. …

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Long-Term Integrated Studies Show Complex And Surprising Effects Of Climate Change In The Northern Hardwood Forest, Peter M. Groffman, Lindsay E. Rustad, Pamela H. Templer, John L. Campbell, Lynn M. Christenson, Nina K. Lany, Anne M. Socci, Matthew A. Vadeboncoeur, Paul G. Schaberg, Geoffrey W. Wilson, Charles T. Driscoll, Timothy J. Fahey, Melany C. Fisk, Christine L. Goodale, Mark B. Green, Steven P. Hamburg, Chris E. Johnson, Mryon J. Mitchell, Jennifer L. Morse, Linda H. Pardo, Nicholas L. Rodenhouse Dec 2012

Long-Term Integrated Studies Show Complex And Surprising Effects Of Climate Change In The Northern Hardwood Forest, Peter M. Groffman, Lindsay E. Rustad, Pamela H. Templer, John L. Campbell, Lynn M. Christenson, Nina K. Lany, Anne M. Socci, Matthew A. Vadeboncoeur, Paul G. Schaberg, Geoffrey W. Wilson, Charles T. Driscoll, Timothy J. Fahey, Melany C. Fisk, Christine L. Goodale, Mark B. Green, Steven P. Hamburg, Chris E. Johnson, Mryon J. Mitchell, Jennifer L. Morse, Linda H. Pardo, Nicholas L. Rodenhouse

Environmental Science and Management Faculty Publications and Presentations

Evaluations of the local effects of global change are often confounded by the interactions of natural and anthropogenic factors that overshadow the effects of climate changes on ecosystems. Long-term watershed and natural elevation gradient studies at the Hubbard Brook Experimental Forest and in the surrounding region show surprising results demonstrating the effects of climate change on hydrologic variables (e.g., evapotranspiration, streamflow, soil moisture); the importance of changes in phenology on water, carbon, and nitrogen fluxes during critical seasonal transition periods; winter climate change effects on plant and animal community composition and ecosystem services; and the effects of anthropogenic disturbances and …

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Sustainable Municipal Operations: Albany, Oregon, Portland State University. Hatfield School Of Government. Center For Public Service, Ed Gallagher, Dave Rouse, Dennis Kurtz, Tanya Johnston Dec 2012

Sustainable Municipal Operations: Albany, Oregon, Portland State University. Hatfield School Of Government. Center For Public Service, Ed Gallagher, Dave Rouse, Dennis Kurtz, Tanya Johnston

Center for Public Service Publications and Reports

Portland State University, Hatfield School of Government (PSU), and Northwest Energy Efficiency Alliance (NEEA), has formed a partnership to develop Sustainable Municipal Operations Plans that documents sustainability and energy management best practices. The goal of this partnership is to determine how a City/municipality can actively manage energy as a controllable expense by following a predetermined operation protocol. The PSU team developed a framework of best practices for sustainable municipal operations in different categories including facilities, fleet, purchasing, operations and the work environment. After identifying pilot jurisdictions, the team applied these best practices to the current operations of local governments in …

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Effects Of Sn Doping On The Morphology And Properties Of Fe-Doped In2o3 Epitaxial Films, Tie Zhou, Lin Wei, Yanru Xie, Qinghao Li, Guoxiang Hu, Yanxue Chen, Shishen Yan, Guolei Liu, Liangmo Mei, Jun Jiao Nov 2012

Effects Of Sn Doping On The Morphology And Properties Of Fe-Doped In2o3 Epitaxial Films, Tie Zhou, Lin Wei, Yanru Xie, Qinghao Li, Guoxiang Hu, Yanxue Chen, Shishen Yan, Guolei Liu, Liangmo Mei, Jun Jiao

Physics Faculty Publications and Presentations

(Sn, Fe)-codoped In₂O₃ epitaxial films were deposited on (111)-oriented Y-stabilized ZrO₂ substrates by pulsed laser deposition with constant Fe concentration and different Sn concentrations. The influence of Sn concentration on the crystal structure and properties of Fe-doped In₂O₃ ferromagnetic semiconductor films has been investigated systematically. Experimental results indicate that Sn doping can effectively reduce the surface roughness and suppresses breakup of the films into separated islands. At the same time, the optical band gap increases and the electrical properties improve correspondingly. However, although the carrier density increases dramatically with the Sn doping, no obvious change of the ferromagnetism is observed. …

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Civic Ecology: Living Community Systems For Sustainability, Tim Smith Nov 2012

Civic Ecology: Living Community Systems For Sustainability, Tim Smith

Systems Science Friday Noon Seminar Series

Civic Ecology is a stakeholder-driven, whole systems framework for creating sustainable communities. The framework focuses on empowering citizens of all ages, cultures, and abilities to envision, create, and manage their community’s unique “software” -- the integrated energy, nutrient, water, waste, material, and food systems, as well as economic flows and cultural interactions that animate their place. Exploring and supporting these flows allows communities to enhance their local wealth (environmental, economic, and social), resilience, and competitiveness, and help them take control of designing and managing their future through collaboration and innovation. The Civic Ecology framework can be the foundation upon which …

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Divergent Carbon Dynamics Under Climate Change In Forests With Diverse Soils, Tree Species, And Land Use Histories, Robert M. Scheller, Alec M. Kretchun, Steve Van Tuyl, Kenneth L. Clark, Melissa S. Lucash, John Hom Nov 2012

Divergent Carbon Dynamics Under Climate Change In Forests With Diverse Soils, Tree Species, And Land Use Histories, Robert M. Scheller, Alec M. Kretchun, Steve Van Tuyl, Kenneth L. Clark, Melissa S. Lucash, John Hom

Environmental Science and Management Faculty Publications and Presentations

Accounting for both climate change and natural disturbances—which typically result in greenhouse gas emissions—is necessary to begin managing forest carbon sequestration. Gaining a complete understanding of forest carbon dynamics is, however, challenging in systems characterized by historic over-utilization, diverse soils and tree species, and frequent disturbance. In order to elucidate the cascading effects of potential climate change on such systems, we projected forest carbon dynamics, including soil carbon changes, and shifts in tree species composition as a consequence of wildfires and climate change in the New Jersey pine barrens (NJPB) over the next 100 years. To do so, we used …

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Site Selection By Migratory Shorebirds In Oregon Estuaries Over Broad And Fine Spatial Scales, Aileen Kilpatrick Miller Nov 2012

Site Selection By Migratory Shorebirds In Oregon Estuaries Over Broad And Fine Spatial Scales, Aileen Kilpatrick Miller

Dissertations and Theses

Many migratory shorebirds rely on estuaries as stop-over sites to refuel during migration, and the loss of stop-over sites is a primary threat to shorebird populations on the West Coast of the United States (e.g. Calidris alpina pacifica, C. mauri). Conservation and research has focused on the largest of these sites; however, smaller estuaries also host thousands of migratory shorebirds. Furthermore, the reasons for site selection are largely unknown. Estuarine inter-tidal microhabitats are non-uniform and both abiotic and biotic factors may serve as predictors of whether an abundance of shorebirds will use a site. I investigated shorebird site selection on …

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Reconstructability Analysis Of Genetic Loci Associated With Alzheimer Disease, Martin Zwick, Shawn K. Westaway, Stephen Shervais, Patricia L. Kramer Nov 2012

Reconstructability Analysis Of Genetic Loci Associated With Alzheimer Disease, Martin Zwick, Shawn K. Westaway, Stephen Shervais, Patricia L. Kramer

Complex Systems Faculty Publications and Presentations

Reconstructability Analysis (RA) is an information- and graph-theory-based method which has been successfully used in previous genomic studies. Here we apply it to genetic (14 SNPs) and non-genetic (Education, Age, Gender) data on Alzheimer disease in a well-characterized Case/Control sample of 424 individuals. We confirm the importance of APOE as a predictor of the disease, and identify one non-genetic factor, Education, and two SNPs, one in BINI and the other in SORCS1, as likely disease predictors. SORCS1 appears to be a common risk factor for people with or without APOE. We also identify a possible interaction effect between Education and …

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The Ecosystem Service Value Of Coastal Wetlands For Cyclone Protection In Australia, Petina Pert, Robert Costanza, Iris Bohnet, James Butler, Ida Kubiszewski, Paul Sutton, Kenneth Mulder, E. (Erin) Bohensky Nov 2012

The Ecosystem Service Value Of Coastal Wetlands For Cyclone Protection In Australia, Petina Pert, Robert Costanza, Iris Bohnet, James Butler, Ida Kubiszewski, Paul Sutton, Kenneth Mulder, E. (Erin) Bohensky

Institute for Sustainable Solutions Publications and Presentations

Slides from a presentation given at an International Conference and Workshop, June 7-10, 2010, titled Solutions for Sustaining Natural Capital and Ecosystem Services.

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Inventory And Initiation Zone Characterization Of Debris Flows On Mount St. Helens, Washington Initiated During A Major Storm Event In November, 2006, Keith Vinton Olson Nov 2012

Inventory And Initiation Zone Characterization Of Debris Flows On Mount St. Helens, Washington Initiated During A Major Storm Event In November, 2006, Keith Vinton Olson

Dissertations and Theses

The heavy precipitation event of November 3-8, 2006 dropped over 60 cm of rain onto the bare southern slopes of Mount St. Helens and generated debris flows in eight of the sixteen drainages outside the 1980 debris avalanche zone. Debris flows occurred on the upper catchments of the Muddy River, Shoestring Glacier, Pine Creek, June Lake, Butte Camp Dome, Blue Lake, Sheep Creek, and South Fork Toutle River. Debris flows were clustered on the west and south-east sides of the mountain. Of the eight debris flows, three were initiated by landslides, while five were initiated by headward or channel erosion. …

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Crystallography Open Database (Cod): An Open-Access Collection Of Crystal Structures And Platform For World-Wide Collaboration, Saulius Gražulis, Adriana Daškevič, Andrius Merkys, Daniel Chateigner, Luca Lutterotti, Miguel Quirós, Nadezhda R. Serebryanaya, Peter Moeck, Robert T. Downs, Armel Le Bail Nov 2012

Crystallography Open Database (Cod): An Open-Access Collection Of Crystal Structures And Platform For World-Wide Collaboration, Saulius Gražulis, Adriana Daškevič, Andrius Merkys, Daniel Chateigner, Luca Lutterotti, Miguel Quirós, Nadezhda R. Serebryanaya, Peter Moeck, Robert T. Downs, Armel Le Bail

Physics Faculty Publications and Presentations

Using an open-access distribution model, the Crystallography Open Database (COD, http://www.crystallography.net) collects all known 'small molecule / small to medium sized unit cell' crystal structures and makes them available freely on the Internet. As of today, the COD has aggregated ~150,000 structures, offering basic search capabilities and the possibility to download the whole database, or parts thereof using a variety of standard open communication protocols. A newly developed website provides capabilities for all registered users to deposit published and so far unpublished structures as personal communications or pre-publication depositions. Such a setup enables extension of the COD database by many …

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The Chemical Origin Of Behavior Is Rooted In Abiogenesis, Brian C. Larson, R. Paul Jensen, Niles Lehman Nov 2012

The Chemical Origin Of Behavior Is Rooted In Abiogenesis, Brian C. Larson, R. Paul Jensen, Niles Lehman

Chemistry Faculty Publications and Presentations

We describe the initial realization of behavior in the biosphere, which we term behavioral chemistry. If molecules are complex enough to attain a stochastic element to their structural conformation in such as a way as to radically affect their function in a biological (evolvable) setting, then they have the capacity to behave. This circumstance is described here as behavioral chemistry, unique in its definition from the colloquial chemical behavior. This transition between chemical behavior and behavioral chemistry need be explicit when discussing the root cause of behavior, which itself lies squarely at the origins of life and is the foundation …

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