Digital Commons Network^™

Mustang Daily, October 7, 2009

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

Mustang Daily, October 6, 2009

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

Cal Poly To Host A Conversation With Michael Pollan On Oct. 15, Public Affairs Office

Press Releases

No abstract provided.

Engineering Advantage, Fall 2009, College Of Engineering

Engineering Advantage

No abstract provided.

Alumnni In The News: Summer & Fall 2009

Cal Poly Magazine

No abstract provided.

Fall 2009 Fact Book, Office Of Institutional Planning & Analysis

Office of Institutional Research

The Fact Book is an annual comprehensive publication of historical trend data on admissions, enrollment, degrees awarded, faculty/staff data, and financial aid.

Material Properties Are Related To Stress Fracture Callus And Porosity Of Cortical Bone Tissue At Affected And Unaffected Sites, Rachel C. Entwistle,, Sara C. Sammons, Robert F. Bigley, Scott J. Hazelwood, David P. Fyhrie, Jeffery C. Gibeling, Susan M. Stover

Biomedical Engineering

Stress fractures are overuse injuries of bone that affect elite athletes and military recruits. One response of cortical bone to stress fracture is to lay down periosteal callus. The objectives of this study were to determine if material properties are different among bones with different stages of stress fracture callus, at both a callus site and at a distal site. Cortical specimens were mechanically tested to determine their stress–strain response. Material property differences were examined using nonparametric and regression analyses. At the callus site, material properties were low during the earliest stages of callus, higher with increasing callus maturity, but …

Ornithocoprophilous Plants Of Mount Desert Rock, A Remote Bird-Nesting Island In The Gulf Of Maine, U.S.A, Nishanta Rajakaruna, Nathaniel S. Pope, Jose Perez-Orozco, Tanner B. Harris

Biological Sciences

Plants growing on seabird-nesting islands are uniquely adapted to deal with guano-derived soils high in N and P. Such ornithocoprophilous plants found in isolated, oceanic settings provide useful models for ecological and evolutionary investigations. The current study explored the plants found on Mount Desert Rock (MDR), a small seabird-nesting, oceanic island 44 km south of Mount Desert Island (MDI), Hancock County, Maine, U.S.A. Twenty-seven species of vascular plants from ten families were recorded. Analyses of guano-derived soils from the rhizosphere of the three most abundant species from bird-nesting sites of MDR showed significantly higher (P < 0.05) NO₃⁻, available …

Tellus 2009: The Annual Literary Journal Of Cuesta College, Volume 17, Kristin Savage

Art and Design

This is a documentation of the design process for Tellus 2009, the Cuesta College Annual Literary Journal. The project spans from research, inspiration, design experiments to final execution. A final, printed book will be produced and delivered to the client after working with a printing facility.

The Effect Of All-Trans Retinoic Acid And Fatty Acids On Mcf-7 Breast Cancer Cell Progression, David A. Brown

Master's Theses

Vitamin A metabolites and retinoids may slow the progression of breast cancer and elicit anti-neoplastic properties similar to those of omega-3 fatty acids. Studies using animal models show a decrease in the incidence, growth and metastisis of mammary tumors in the presence of specific fatty acids. This effect is also seen with use of retinoids, specifically all-trans retinoic acid (AtRA). Thus, fatty acids may also alter retinoid homeostasis in mammary carcinoma cells (MCF-7s). The potential for inter/co dependency among fatty acids and retinoids is considerable, and here it has been hypothesized that a decrease in cancer progression will occur in …

Compliance Calibration For Fracture Testing Of Anisotropic Biological Materials, J. A. Creel, S. M. Stover, R. B. Martin, D. P. Fyhrie, S. J. Hazelwood, J. C. Gibeling

Biomedical Engineering

The compliance technique has been used to monitor crack length during fracture and fatigue testing of materials. Difficulties arise when this technique is applied to anisotropic biological materials such as bone. In this tutorial, two different methods of analyzing compliance calibration data are described: the standard ASTM method and a new approach developed by the authors specifically for anisotropic materials. An example is given showing how data from equine cortical bone can be analyzed. In this example, calibration tests were conducted on thirty-six three point bend specimens machined from the middiaphysis of six pairs of equine third metacarpal bones. Cracks …

Before It’S Too Late: A Digital Game Preservation White Paper, Henry Lowood, Devin Monnens, Zach Vowell, Judd Ethan Ruggill, Ken S. Mcallister, Andrew Armstrong

Library Scholarship

Over the last four decades, electronic games have profoundly changed the way people play, learn, and connect with each other. Despite the tremendous impact of electronic games, however, until recently, relatively few programs existed to preserve them for future generations of players and researchers. Recognizing the need to save the original content and intellectual property of electronic games from media rot, obsolescence, and loss, the Game Preservation Special Interest Group of the International Game Developers Association has issued a white paper summarizing why electronic games should be preserved, problems that must be solved to do so, some potential solutions, and …

Impact Of Dietary Arginine On Immunity In Broiler Chicks, Jennifer Lynn D'Amato

Master's Theses

Arginine (ARG) is an immunologic modulator due in part to its role as a substrate for leukocytes. Therefore, the objective of these studies was to evaluate the impact of dietary ARG on ARG utilization in peripheral blood mononuclear cells (PBMC) and thymocytes in broiler chicks as they provide a model that is not confounded by de novo ARG synthesis. Several experiments were performed to measure: 1) ARG transporters as markers of ARG utilization by leukocytes; 2) thymocyte proliferation; 3) PBMC phenotype, and 4) ARG’s impact on the acute phase response (APR). In experiment 1, chicks were fed diets containing 1.20% …

Regression Analysis Of Fracture Toughness For Secondary Osteons Located In Human Cortical Bone, Chase A. Fetzer

Master's Theses

An experiment was carried out in order to locate and quantify osteon types within a sample of cortical bone taken from a human tibia. This was done using a microscope-camera assembly and the BioQuant computer software. The results of this were correlated with a previous experiment’s results on fracture toughness so that an analysis could be run on the data in order to determine the factors that most affect the value of fracture toughness of this cortical bone. Results were examined closely and the analysis repeated until the author was satisfied that the best possible model for fracture toughness had …

Mustang Daily, September 29, 2009

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

Mustang Daily, September 28, 2009

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

Mustang Daily, September 23, 2009

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

Executive Committee - Meeting Minutes, 9/22/2009, Academic Senate

Academic Senate Minutes

No abstract provided.

Mustang Daily: Back To School, September 12, 2009

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

Rumen Fermentation Pattern Of Dairy Heifers Fed Restricted Amounts Of Low, Medium, And High Concentrate Diets Without And With Yeast Culture, G. J. Lascano, A. J. Heinrichs

Dairy Science

Restricted feeding and highconcentratediets are potential strategies for growing dairyheifers. Ruminal manipulation with additives such as Saccharomyces cerevisiaeyeastculture (YC) has been shown to alter digestibility when added to this type of diet. An experiment was conducted to investigate the ruminal fermentation and in situ digestibility of diets with 3 different levels of forage to concentrate (F:C) fed at restricted intake without and with YC addition. Three cannulated post-pubertal Holstein heifers (age 18.0 ± 1.2 months; body weight 449.6 ± 19.7 kg) were feddiets consisting of corn silage as the sole forage source in a 3 period (35-day) Latin square …

Phil Tong On Nutritious Frozen Dairy, Phillip S. Tong

Dairy Science

No abstract provided.

A Hump-Shaped Relationship Between Isolation And Abundance Of Notonecta Irrorata Colonists In Aquatic Mesocosms, Shannon J. Mccauley, Christopher J. Davis, Jennifer Nystrom, Earl E. Werner

Biological Sciences

We examined the relationship between the isolation of experimental aquatic mesocosms and the abundance of an aquatic insect colonist, Notonecta irrorata, over two years. We used a curve-fitting approach to assess whether linear or quadratic models better describe the relationship between isolation and abundance. For two measures of mesocosm isolation, distance to nearest source and distance to the largest source population, there was a significant quadratic relationship between isolation and abundance. Abundance of colonizing N. irrorata was not found to be significantly related to a third measure of isolation, mesocosm connectivity. These results indicate that the relationship between habitat …

Fall Conference 2009: Building Cal Poly's Future, Center For Teaching And Learning - California Polytechnic State University

Center for Teaching, Learning and Technology

No abstract provided.

Feasibility Of Ellipsometric Sensor Development For Use During Pecvd Siox Coated Polymer Product Manufacturing, Daniel Lynn Helms

Master's Theses

Polymeric materials have provided pathways to products that could not be manufactured otherwise. A new technology which merges the benefits of ceramics into these polymer products has created materials ideally suited to many different industries, like food packaging. Nano Scale Surface Systems, Inc. (NS3), a company which coats polymers with ceramic oxides like SiO2 through a process known as plasma enhanced chemical vapor deposition (PECVD), was interested in the feasibility of an in line measurement system for monitoring the deposited films on various polymer products. This project examined two different coated polymer products, polyethylene terephthalate (PET) beverage containers and biaxially …

Sex And Microhabitat Influence The Allocation Of Mycosporine-Like Amino Acids To Tissues In The Purple Sea Urchin, Strongylocentrotus Purpuratus, Sarah A. Gravem

Master's Theses

Field surveys of Strongylocentrotus purpuratus demonstrated that concentrations of natural sunscreens, mycosporine-like amino acids (MAAs), were higher in females than males for both gonadal and epidermal tissues, increased in ovaries as spawning season approached, and were influenced by the sea urchins’ microhabitat. Sea urchins occupying burrows, or “pits”, had lower concentrations of MAAs than those outside pits, suggesting a trade-off between physical and UV protection. Overall, UV irradiance did not influence MAA accumulation in gonadal tissues. However, males increased their allocation of MAAs to epidermal tissues in the microhabitat with the highest irradiance. Relative concentrations of individual MAAs were similar …

Impact Of Weed Management Practices On Grapevine Growth, Yield Components, Plant And Arthropod Abundance, And Carabid Seed Predation In Paso Robles Vineyard, Paolo Sanguankeo

Master's Theses

In the Central Coast of California, USA, wine grape growers are making efforts to identify weed control practices that promote biodiversity in their vineyards while maintaining yields. A field study was conducted in Paso Robles, CA in 2006 and 2007 evaluating the effect on Zinfandel grape-vine growth and production, groundcover plant, and ground dwelling arthropod communities of five weed control practices: 1) flumioxazin, 2) simazine, 3) cultivation, 4) cover crop, and 5) untreated control.

The herbicide treatments had the lowest weed biomass followed by the cultivation, being approximately 10 and 2 times lower than the weed biomass of either the …

Managing Maize Production In Shifting Cultivation Milpa Systems In Yucatan, Through Weed Control And Manure Application, David Parsons, Luis Ramirez-Aviles, Jerome H. Cherney, Quirine M. Ketterings, Robert W. Blake, Charles F. Nicholson

Agribusiness

Milpa cultivation involving cutting an area of forest, burning, and planting crops has existed in the Yucatán Peninsula for more than three millennia. Fallow periods are short and decreasing, leading to a productivity collapse of the system. Technologies that increase yield and maintain plots under cultivation have the potential to decrease the land area needed for family food production, resulting in more mature forests. This study was undertaken to examine the relative importance and potential interactions of declining fertility and increasing weed pressure in reducing maize (Zea mays L.) yields, and to examine the effectiveness of combinations of weed …

The Climate Of Cities, Matthew J. Downing

Social Sciences

An overall survey of the factors involved in creating the climate of cities, how that climate differs from rural ones, and future implications of urban climates.

Assessment Of Electrospinning As An In-House Fabrication Technique For Blood Vessel Mimic Cellular Scaffolding, Colby M. James

Master's Theses

Intravascular devices, such as stents, must be rigorously tested before they can be approved by the FDA. This includes bench top in vitro testing to determine biocompatibility, and animal model testing to ensure safety and efficacy. As an intermediate step, a blood vessel mimic (BVM) testing method has been developed that mimics the three dimensional structure of blood vessels using a perfusion bioreactor system, human derived endothelial cells, and a biocompatible polymer scaffold used to support growth of the blood vessel cells. The focus of this thesis was to find an in-house fabrication method capable of making cellular scaffolding for …

Computational Model Of Alendronate Effects On Canine Rib Remodeling And Microdamage, Emily Huang

Master's Theses

Bisphosphonates are a class of drugs used to prevent and treat bone diseases by inhibiting the resorption of bone by osteoclasts and suppressing bone remodeling. Osteoporosis is a bone disease that develops when bone resorption exceeds bone formation which results in an increase in bone porosity and fracture risk. The risk for fractures can be reduced by increasing bone mass. Alendronate is type of bisphosphonate that is approved by the Food and Drug Administration (FDA) to treat postmenopausal osteoporosis by suppressing basic multicellular unit (BMU) remodeling and increasing bone mass. The long term effects of bisphosphonates are still unclear due …