Digital Commons Network^™

A Microfluidic Pretreatment Isoelectric Focusing Dc-Field Assisted H-Filter For The Separation Of Charged Particles, Cameron Sean Carroll

Biomedical Engineering

Microfluidic devices are small portable diagnostic chips that allow for analysis of a biologic sample at relatively low cost. This makes them ideal for settings where a hospital is unavailable. The microfluidic pretreatment isoelectric focusing DC-field assisted H-filter is a device that allows for the separation of differently charged particles in a biologic sample. It does this by employing the concepts of diffusion, electrophoresis, and isoelectric focusing. This is perfect for isolation of a desired analyte or separation of waste from a sample in order to achieve better diagnostic results. The device was first modeled mathematically and visually using Comsol. …

Perceptions Of Herbal Remedies Among California Polytechnic University, San Luis Obispo Students, Maria Cacciatore, Kimmie Layland, Nicole Morrisey

Social Sciences

Many practitioners now recognize that herbal remedies can be an effective and natural alternative to the standard American, western biomedicine. The objective of our research project is to discover the perceptions about herbal remedies as alternative medicine among Cal Poly students. Specifically we ask, why are they chosen and how students gauge their effectiveness. We seek to see if students have experimented with these herbal remedies, why they chose this route for wellness, and how they value the use of herbal alternative. If we are successful in this project, we will have a greater understanding of how young educated adults …

Wine To Water, Jennifer Stangland

Social Sciences

Nearly one billion people in the world today do not have access to clean water (Siegfried, 2008). This is a crisis that society has faced for decades, and is not a problem that (to our knowledge) will be miraculously alleviated anytime in the near future. The implications of this resource deficit run deep for many people outside of America. But sadly, the affected places and people are not often visible to or noticed by the American society as a whole. The purpose of my research and analysis through this project is to change that. I desire to see a community …

Finger Lime Citrus Pearl Shelf Life Testing, Tim Romley, Heather Wilson

Industrial Technology and Packaging

Finger Limes are a micro citrus that is native to Australia. They are new to the United States and are now being grown in California. The pulp of the Finger Lime is mainly used as a luxury garnish. Shanley Farms is a small family run business that is located in Visalia and Morro Bay that is one of few growers of the fruit. The majority of their sales are to the food service industry. Much of their product is also sent over seas as an international commodity.

A large amount of fruit goes to waste every harvesting season. 15% of …

High School Bullying Awareness And Prevention, Tracey Ruby Madrigal

Social Sciences

No abstract provided.

Lifestyle Interventions To Reduce Obesity And Diabetes, Todd Alan Hagobian, Suzanne Phelan

Kinesiology and Public Health

The majority of US adults are overweight or obese, which is a primary risk factor for type 2 diabetes and other chronic diseases. Recent advances in behavioral treatment of obesity have produced significant short- and longterm weight losses that reduce the risk of type 2 diabetes and cardiovascular disease. This article reviews key components of effective behavioral treatment interventions, including diet, exercise, and behavioral and psychosocial strategies. The authors review newer treatment modalities that may enhance dissemination (Internet, smartphone) and discuss applications to clinical practice. Practitioners face multiple barriers to effectively delivering lifestyle interventions in today’s health care setting but, …

Effects Of Ovariectomy And Anatomical Location On Osteonal Encroachment In Adult Cortical Ovine Bone, Paige Brell Ryan

Master's Theses

The purpose of this study is to further quantify adult ovine ovariectomized bone for new remodeling characteristics to obtain a better understanding of how remodeling is occurring and the effectiveness of this animal model for the study of postmenopausal osteoporosis. Postmenopausal osteoporosis is a major health concern and animal models to test new treatment options are needed. The ovine model is a good option because the ewes undergo Haversian remodeling, are a large sized animal, and have a similar hormone profile to humans. Ewes, however, do not undergo a natural menopause, so an ovariectomy surgery was conducted in the sheep …

Home Range And Habitat Use Of Santa Rosa Island Foxes (Urocyon Littoralis Santarosae), Elizabeth Marie Drake

Master's Theses

Island foxes (Urocyon littoralis) are currently listed as federally endangered on four of the six Channel Islands to which they are endemic. The Santa Rosa Island (SRI) population declined by 99% during the 1990’s due to non-native golden eagle (Aguila chrysaetos) predation and is currently the lowest fox population (~280) and density (0.86 foxes/km²) of any of the Channel Islands. The goals of this study were to assess new miniaturized GPS technology and to quantify home range and habitat use of the SRI population. This is only the second use of Global Positioning System (GPS) …

Hydrologic Modeling Of The San Joaquin Valley Watershed For Purposes Of Nitrate Analysis, Stephen Carl Clayton

Master's Theses

The San Joaquin Valley is regarded as one of the most productive agricultural regions in the world. This extensive agriculture has, however, caused extensive pollution of both ground water and surface water. This thesis develops a hydrologic model of the surface and ground waters of the San Joaquin Valley. Such modeling is useful in the development and implementation of water quality regulations such as Total Maximum Daily Loads (TMDLs). A properly validated watershed simulation model can supplement data collection and can account for watershed characteristics including topography, soils, climate, land cover, anthropogenic activities, as well as simulate watershed responses including …

Cloth Filter For Disaster Relief Water Treatment, Shasta Le'ja Billings

Master's Theses

Relief organizations and governments strive to provide safe drinking water to natural disaster survivors as quickly as possible. However, drinking water is typically provided either as bottled water or via mobile water treatment equipment, both of which can be difficult or expensive to transport rapidly into disaster zones. An alternative is the waterbag point-of-use treatment device developed at Cal Poly that allows survivors to produce safe drinking water from contaminated local sources. The waterbag is a 10-L bladder designed for use with Procter & Gamble Purifier of Water (PŪR^®) sachets, which contain coagulant and chlorine compounds. Following treatment …

Bacterial Growth On Metal And Non-Metal Surfaces In A Static Bioreactor, Rolan Yuk Loong Liong

Master's Theses

Research was conducted to observe bacterial growth on the surface of metals in a static bioreactor. Metal and non-metal samples were subjected to bacterial exposure (1 day and 9 days). The metal samples were surface treated prior to bacterial exposure. The microstructures of the surface treated samples were analyzed by optical microscopy. After exposure, the microstructures of the samples were analyzed by scanning electron microscopy (SEM). The analysis suggested that microbial attachment on the surface was related to the underlying microstructure of steel. The preferential attachment of microbes could potentially be influenced by cathodic and anodic regions created by the …

Cal Poly Students Headed To Malta And Sicily For Underwater Archeology Expedition, Public Affairs Office

Press Releases

No abstract provided.

Good Eats, Elizabeth Foreman

Between the Species

If one believes that vegetarianism is morally obligatory, there are numerous ways to argue for that conclusion. In this paper, classic utilitarian and rights-based attempts to ground this obligation are considered, as well as Cora Diamond’s reframing of the debate in terms of the proper way to view other animals. After discussion of these three ways to ground the obligation and their problems, an attitude-based approach inspired by Diamond’s view (though different from it in important ways) is advanced. It is argued that such a view, by focusing moral attention on the attitudes of agents as opposed to the actions …

February 13, 2013 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Academic Senate - Meeting Minutes, 2/12/2013, Academic Senate

Academic Senate Minutes

No abstract provided.

Traversing Swanton Road, 12th Ed., James A. West

Academic, Government & Associated Organizational Research Resources

Situated at the northwest end of Santa Cruz County and occupying circa 30 square miles of sharply contrasted terrain, the Scott Creek Watershed concentrates within its geomorphological boundaries, at least 10-12% of California's flora, both native and introduced. Paradoxically, the use/abuse that the watershed has sustained over the past 140+ years, has not necessarily diminished the biodiversity and perhaps parallels the naturally disruptive but biologically energizing processes (fire, flooding, landslides and erosion), which have also been historically documented for the area for +60 years. This is an early edition of an extensive document by James A. West. Please visit the …

February 6, 2013 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

The Art And Science Of Climate Policy : Bay Area Air Quality Management District (Baaqmd), Ian Peterson

California Climate Action Planning Conference

The Art and Science of Writing Climate Policy

A Socratic Method For Surveying Students’ Readiness To Study Evolution, William D. Stansfield

Biological Sciences

Before beginning a series of presentations on evolution, it would be prudent to survey the general level of students’ understanding of prerequisite basic concepts of reproduction, heredity, ontology, and phenotypic diversity so that teachers can avoid devoting time to well-known subjects of general knowledge and can spend more time on subjects that are unknown, forgotten, or misunderstood by most students. This article outlines a Socratic method for surveying and teaching to address these concerns.

Teaching Evolution & The Nature Of Science Via The History Of Debates About The Levels At Which Natural Selection Operates, William D. Stansfield

Biological Sciences

Students should not graduate from high school without understanding that scientific debates are essential components of scientific methodology. This article presents a brief history of ongoing debates regarding the hypothesis that group selection is an evolutionary mechanism, and it serves as an example of the role that debates play in correcting faulty ideas and stimulating new research in the pursuit of extending scientific knowledge.

January 30, 2013 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Cal Poly Receives $1.3 Million Dept. Of Energy Grant For Algae Biofuels Production Project, Public Affairs Office

Press Releases

No abstract provided.

January 23, 2013 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

January 16, 2013 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Traversing Swanton Road, 11th Ed., James A. West

Academic, Government & Associated Organizational Research Resources

Situated at the northwest end of Santa Cruz County and occupying circa 30 square miles of sharply contrasted terrain, the Scott Creek Watershed concentrates within its geomorphological boundaries, at least 10-12% of California's flora, both native and introduced. Paradoxically, the use/abuse that the watershed has sustained over the past 140+ years, has not necessarily diminished the biodiversity and perhaps parallels the naturally disruptive but biologically energizing processes (fire, flooding, landslides and erosion), which have also been historically documented for the area for +60 years. This is an early edition of an extensive document by James A. West. Please visit the …

Cal Poly Science Café Presents 'Pyroprints! Fingerprinting Bacteria' On Feb. 7, Public Affairs Office

Press Releases

No abstract provided.

Shared Responsibility In A Multispecies Playground, Marcus Baynes-Rock

Between the Species

While conducting research on urbanised hyenas in Harar, Ethiopia, I was approached by a young hyena named Willi. In contrast to other hyenas, who tolerated my presence but otherwise had little interest in me, Willi insisted on some kind of engagement. Through biting, chase play, combing, following and standing by one other, Willi and I went beyond our species limitations and created an improvised intersubjectivity based on a will to understand. However, our friendship led to some harmful consequences for which I felt responsible. This led me to question the ethics of engagement with non-humans: if unforeseen harms can result …

Paper And Toner Three-Dimensional Fluidic Devices: Programming Fluid Flow To Improve Point-Of-Care Diagnostics, Kevin M. Schilling, Daisy Jauregui, Andres W. Martinez

Chemistry and Biochemistry

We present a new method for fabricating three-dimensional paper-based fluidic devices that uses toner as a thermal adhesive to bond multiple layers of patterned paper together. The fabrication process is rapid, involves minimal equipment (a laser printer and a laminator) and produces complex channel networks with dimensions down to 1 mm. The devices can run multiple diagnostic assays on one or more samples simultaneously, can incorporate positive and negative controls and can be programmed to display the results of the assays in a variety of patterns. The patterns of the results can encode information, which could be used to identify …

The Marriage Of Science Fiction And Egyptology, Kevin Mclaren

The Forum: Journal of History

No abstract provided.

Rescuing Acetylcholinesterase From Nerve Agent Inhibition: Protein Dynamics Driven Drug Discovery, Aiyana M. Emigh, Brian Bennion

STAR Program Research Presentations

Severe morbidity and mortality consequences result from irreversible inhibition of human acetylcholinesterase by organophosphates (OPs). Oxime-based reactivators are currently the only available treatments but lack efficacy in the central nervous system (CNS) where the most damage occurs. Computational docking and molecular dynamics (MD) simulations reveal complex structural barriers that may reduce oxime efficacy. These results may guide future drug designs of more effective countermeasures.