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Theses/Dissertations

2013

California Polytechnic State University, San Luis Obispo

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Full-Text Articles in Life Sciences

Managing The Veterinary Clinic Enterprise, Shelby N. Smyly Dec 2013

Managing The Veterinary Clinic Enterprise, Shelby N. Smyly

Animal Science

This document serves as a guideline for the student management of the Veterinary Clinic Enterprise.


The Imperative Of Conserving California's Foothill Oak Woodlands, Lauren Phillips Dec 2013

The Imperative Of Conserving California's Foothill Oak Woodlands, Lauren Phillips

Social Sciences

No abstract provided.


Census And Mapping Of Chorro Creek Bog Thistle In Reservoir Canyon, San Luis Obispo, Ca, Tyler Michael Lutz Dec 2013

Census And Mapping Of Chorro Creek Bog Thistle In Reservoir Canyon, San Luis Obispo, Ca, Tyler Michael Lutz

Biological Sciences

Chorro Creek bog thistle (Cirsium fontinale var. obispoense) is a federally endangered variety of Fountain thistle endemic to western San Luis Obispo County. The U.S. Fish and Wildlife Service knows of nineteen populations, many with multiple colonies. A population was discovered in the Reservoir Canyon Natural Reserve in 2001, but has not been monitored or described since the time of its discovery. In fall of 2013, a census of the population was performed, the four colonies were mapped, and a floristic survey was conducted. A field experiment was initiated to determine if reducing the riparian canopy coverage can increase ...


Common Core 4th Grade Environmental Science Lesson Plans For California Teachers, Gillian Schoenfeld Dec 2013

Common Core 4th Grade Environmental Science Lesson Plans For California Teachers, Gillian Schoenfeld

Natural Resources Management and Environmental Sciences

This project and its analyses were conducted to assist California fourth grade elementary school teachers in adjusting to teaching Common Core standards and science curriculum in their classrooms. The project included the creation of lesson plans, which could be utilized throughout the state of California.

As the Common Core standards, California’s Next Generation Science Standards for K- 12, were just proposed in June of 2013, these lesson plans would help teachers update their lessons and provide them materials and concepts of how to do so. These lessons provide higher-order thinking for students, which is the whole concept of the ...


The Effects Of 8 Weeks Of Low Dose Supplementation Of Creatine And Sodium Bicarbonate On Exercise Performance, Amanda Jessica Morris Dec 2013

The Effects Of 8 Weeks Of Low Dose Supplementation Of Creatine And Sodium Bicarbonate On Exercise Performance, Amanda Jessica Morris

Master's Theses and Project Reports

Short-term (3-7 days), high doses of creatine (20g/d) and/or sodium bicarbonate (0.5g/kg body weight) supplementation increase exercise performance during short term high intensity activities; however, it remains unclear whether long-term, low doses of these supplements have a positive impact on exercise performance. The purpose of this study was to determine the effects of long-term (8 weeks), low dose creatine supplementation on exercise performance, and whether combining creatine and sodium bicarbonate supplementation has an additive effect. Sixty-three healthy, habitually active, adults (28 M, 35 W; 22+2 years; 23+ 3 BMI) were randomly assigned by sex to ...


Effect Of Antimicrobials And Sodium Replacement Agents On The Survival Of Pathogenic Bacteria In Low Sodium Low-Moisture Part-Skim (Lmps) Mozzarella Cheese, Tiffany M J Taylor Dec 2013

Effect Of Antimicrobials And Sodium Replacement Agents On The Survival Of Pathogenic Bacteria In Low Sodium Low-Moisture Part-Skim (Lmps) Mozzarella Cheese, Tiffany M J Taylor

Master's Theses and Project Reports

Recent increases in chronic cardiovascular diseases, such as hypertension, have put pressure on the food industry to reduce sodium levels. Dairy products, though full of vital nutrients, are perceived as being high in sodium. However, the reduction of salt in dairy products could potentially alter the microbial stability, as well as cause unfavorable changes in flavor. In order to reduce the sodium level, while maintaining acceptable flavor and microbial stability, salt replacers and alternative antimicrobial agents may need to be introduced into the food matrix. To identify potential antimicrobials for use in reduced sodium dairy products, this study evaluated the ...


Variability Of Practice And Strength Training Periodization: When Theories Collide, Katherine Lauren Streder Dec 2013

Variability Of Practice And Strength Training Periodization: When Theories Collide, Katherine Lauren Streder

Master's Theses and Project Reports

The primary purpose of this study was to examine whether variability of practice enhances neuromuscular adaptations when compared to traditional strength training. The secondary purpose was to investigate whether there was a difference in perception of exertion between the two strength programs. Forty one subjects (23 women and 18 men) were assigned to either the control group or one of two treatment groups by a blocked-random method. Subject's one repetition maximum (1RM) for the kettlebell press and leg press were measured at baseline, after 4 weeks of training, and after 8 weeks of training. The treatment groups completed 8 ...


Lipid Production By Microalgae Treating Municipal Wastewater, James Edward Kelley Dec 2013

Lipid Production By Microalgae Treating Municipal Wastewater, James Edward Kelley

Master's Theses and Project Reports

Microalgae hold much promise as a feedstock in liquid biofuel production. Lipid content of microalgae cells range from 30-80% dry weight of biomass. It is projected that microalgae can produce between 1,000-6,500 gallons/acre/year of oil. Currently, production of industrial algae operates in open raceway ponds that use minimal capital and energy inputs to culture algae. Raceway ponds can also be used to grow microalgae from municipal waste streams. Although high biomass productivity can be achieved in these systems, there remains a large production gap between large volumes of biomass cultivation and high lipid content from microalgae ...


Protective Effects Of Sphingomyelin Against Uv Photodamage In Human Keratinocytes, Kathleen De Guzman Dec 2013

Protective Effects Of Sphingomyelin Against Uv Photodamage In Human Keratinocytes, Kathleen De Guzman

Master's Theses and Project Reports

Ultraviolet (UV) radiation has been demonstrated in numerous studies to be a major risk factor for non-melanoma skin cancer development. Despite the emergence of current UV-preventative strategies, such as sunscreens and skin-protective clothing, the incidence of non-melanoma skin cancer has continued to rise. This has encouraged investigations on alternative methods for UV prevention. In particular, bovine milk sphingomyelin has been studied for its potential in protecting human skin against UV photodamage. While the previous studies have suggested that sphingomyelin exhibits UV-protective properties in a human skin equivalent model, the exact mechanisms behind sphingomyelin’s photoprotective effects are yet unknown.

This ...


An Assessment Of Habitat Suitability For Pronghorn Populations Of The Central Valley Region Of California, Virginia Burroughs Dec 2013

An Assessment Of Habitat Suitability For Pronghorn Populations Of The Central Valley Region Of California, Virginia Burroughs

Master's Theses and Project Reports

Efforts to reintroduce and maintain populations of pronghorn (Antilocapra americana) to the California Central Valley, specifically the Carrizo Plain National Monument (CPNM) and the Mojave Desert (Antelope Valley) portion of Tejon Ranch, have largely been unsuccessful due to dwindling numbers of translocated animals. The objective of this study was to improve upon previous models for the CPNM using aerial survey data and then apply the model to the Tejon Ranch. Aerial survey data collected from 2000-2010 on the CPNM was used to establish “use” and “non-use” areas in the model. Model variables included vegetation type (forest, shrub, grassland, semi-desert scrub ...


Conjugated Linoleic Acids Alter Body Composition Differently According To Physiological Age In Moulard Ducks, Jeff Fesler, Daniel Peterson Dec 2013

Conjugated Linoleic Acids Alter Body Composition Differently According To Physiological Age In Moulard Ducks, Jeff Fesler, Daniel Peterson

Master's Theses and Project Reports

Conjugated linoleic acids (CLA) have been shown to have remarkable yet inconsistent metabolic effects in mice, rats, hamsters, chickens, cattle, and humans. In particular, effects on lipogenesis vary with tissue, physiological state and specie. In this study we tested the hypothesis that CLA would differentially affect ducks of the same genetic background but of differing age. Growing (7 wk) and maintenance (11 wk) Moulard ducks were grouped by age and fed a standard diet supplemented with either 5% soybean oil (control) or 5% CLA isomer mixture. Animals were harvested after 3 weeks or 6 weeks for assessment of body composition ...


The Behavioral And Physiological Effects Of Long-Distance Translocation On Western Rattlesnakes (Crotalus Oreganus), Kory Hayden Heiken Dec 2013

The Behavioral And Physiological Effects Of Long-Distance Translocation On Western Rattlesnakes (Crotalus Oreganus), Kory Hayden Heiken

Master's Theses and Project Reports

Long-distance translocation (LDT), the relocation of an animal outside of its home range, is a popular strategy for mitigating conflict between humans and venomous snakes. While LDT has been demonstrated to prevent a snake’s return to the location of capture, it may result in increased mortality, magnitude and frequency of movements, and activity range sizes. Thus, it has generally been discouraged. However, the effects of LDT on stress physiology and thermoregulation have gone largely unstudied in reptiles. To elucidate these effects, we conducted an experimental LDT on Western Rattlesnakes (Crotalus oreganus) on Vandenberg Air Force base in California.

Fourteen ...


The Influence Of Hydrogeomorphology, Soil Redox Conditions, And Salinity On The Spatial Zoning Of Saltgrass, Salt Rush, And Cattails In Scotts Creek Marsh, Swanton Pacific Ranch, Ca, Mark D. Gormley Dec 2013

The Influence Of Hydrogeomorphology, Soil Redox Conditions, And Salinity On The Spatial Zoning Of Saltgrass, Salt Rush, And Cattails In Scotts Creek Marsh, Swanton Pacific Ranch, Ca, Mark D. Gormley

Master's Theses and Project Reports

Scotts Creek Marsh (SCM) is a small coastal wetland ecosystem in Davenport, CA. The vegetation of SCM is dominated by three halophytic zones comprised of saltgrass, salt rush, cattails. The objectives of the study were (i) to investigate the variables that influence the zoning of the three dominant halophyte communities in SCM and (ii) to the test the effectiveness of Indicator of Reduction in Soil (IRIS) tubes to indicate the reduction of S. The study examined the following parameters from April 6 to July 21, 2013: (i) the HGM of Scotts Creek Marsh, (ii) soil oxidation and reduction (redox) conditions ...


The Envenoming Pandemic And The Misguided Views Of Snakes: Developing Sustainable Relationships Between Native Poisonous Snakes Of India And The Citizens Of Maharashtra Through The Use Of The Irula Model., Destiny Villanueva Nov 2013

The Envenoming Pandemic And The Misguided Views Of Snakes: Developing Sustainable Relationships Between Native Poisonous Snakes Of India And The Citizens Of Maharashtra Through The Use Of The Irula Model., Destiny Villanueva

Animal Science

Due to its vast population and general negative consensus regarding snakes, India is notorious for having more snakebite incidents than any other country. Snakes are simultaneously revered and feared in Indian religion and culture. This stigma is perpetuated through propaganda, family beliefs, and innate fears of snakes.These stigmas are more pronounced within rural areas, such as the region of Mahad within the state of Maharshtra. Envenoming is endemic in these areas, and others like them. The World Health Organization identified envenoming as one of the most neglected tropical diseases of the 21st century (Nature India, 2013). Additionally, both nonvenomous ...


Identifying Chromosome Rearrangements In The Allopolyploid Brassica Napus Using Pyrosequencing, Alexandra R. Barbella Oct 2013

Identifying Chromosome Rearrangements In The Allopolyploid Brassica Napus Using Pyrosequencing, Alexandra R. Barbella

Master's Theses and Project Reports

Allopolyploids form through the hybridization of two or more diploid genomes. A challenge to reproduction in allopolyploids is that pairing can occur between homologous chromosomes or homeologous chromosomes (i.e.different subgenomes.). Crossover between homeologous chromosomes can result in chromosome rearrangements that lower fertility and overall fitness. Rearrangements can alter the dosage of either entire chromosomes or just parts of chromosomes. Understanding the frequency and extent of rearrangements will help to explain the evolution and genome stabilization of agriculturally important allopolyploid species. Pyrosequencing is a useful tool in the study dosage changes in allopolyploids because it allows quantification of the ...


The History Of Trial Gardens, Hallie Schmidt Sep 2013

The History Of Trial Gardens, Hallie Schmidt

Horticulture and Crop Science

Essay explores the history of home gardening and seed industry in America and the conditions that led to the development of the All-America Selections.


Effect Of Warm-Up Activity On Vertical Ground Reaction Forces In Basketball Players During Drop Jump Landings, Jacob Wesley Hinkel-Lipsker Sep 2013

Effect Of Warm-Up Activity On Vertical Ground Reaction Forces In Basketball Players During Drop Jump Landings, Jacob Wesley Hinkel-Lipsker

Master's Theses and Project Reports

ABSTRACT

Effect of Warm-Up Activity on Vertical Ground Reaction Forces in Basketball Players During Drop Jump Landings

Jacob Hinkel-Lipsker

Purpose: The purpose of this study was to examine the effect of certain warm-up activities on vertical ground reaction forces (GRFv) during a drop jump landing. Methods: Eight women and twelve men (mean age 22.6 ± 1.82 years) completed three warm-up activities on three separate days in a counterbalanced order: a passive stretching warm-up, a dynamic warm-up, and a no warm-up control. After completing each activity, participants were asked to perform eight drop jump landings on a force platform ...


The Effects Of Microfluidization And Homogenization On The Composition And Structure Of Liposomal Aggregates From Whey Buttermilk And Commercial Buttermilk, Tracey Mai T. Nguyen Aug 2013

The Effects Of Microfluidization And Homogenization On The Composition And Structure Of Liposomal Aggregates From Whey Buttermilk And Commercial Buttermilk, Tracey Mai T. Nguyen

Master's Theses and Project Reports

Milk derived ingredients from the production of cheese and butter can be used as vehicles for nutrients. Buttermilk is a nutritious product of milk that comes from the churning of cream into butter. One of the advantages of buttermilk is that it is enriched in milk fat globule components, such as phospholipids and forms emulsions with fat when treated with high shear. The objective of this work was to explore the effects of shear on regular buttermilk and whey buttermilk in terms of liposomal aggregate size and chemical composition. The effects of microfluidization at 2000 psi and homogenization at 2000 ...


Effects Of Chelating Agents On Texture Of Lowfat Cheddar Cheese, Mariela Fernanda Poveda Jun 2013

Effects Of Chelating Agents On Texture Of Lowfat Cheddar Cheese, Mariela Fernanda Poveda

Master's Theses and Project Reports

Effects of two types of chelating agents on proteolysis and texture properties of low fat Cheddar cheese (LFC) were analyzed and compared to full fat Cheddar (FFC) control during ripening for 120 days at 8°C. We hypothesized that chelating agents would bind calcium ions from cheese matrix to give a softer curd due to a decrease of protein-protein interactions and simultaneously increasing moisture content. Cheese milk containing (0.59% fat) was divided into three lots (A, B & C). Sodium citrate (3Na) and disodium EDTA (EDTA) were added to A & B at the rate of (0.02% and 0.2 ...


Humboldt County Agriculture Education: Forestry, Nursery, And Dairy Production, Alayna Renner Jun 2013

Humboldt County Agriculture Education: Forestry, Nursery, And Dairy Production, Alayna Renner

Agricultural Education and Communication

The purpose of this project was to create middle school agriculture curriculum for the top three agriculture commodities in Humboldt County. It was designed and created specifically for Humboldt County to educate the upcoming generations about the unique and diverse agriculture industry Humboldt County provides. It is hoped that this easy and ready to use curriculum will get the students interested and involved in the agriculture industry in the future years. It includes a teacher’s aide outline, student handouts, a Power Point, and an activity handout.


Pesticide Regulation Differences Of The U.S., Chile, And Mexico On Imported Berries, Kayla Felicia Gardener Jun 2013

Pesticide Regulation Differences Of The U.S., Chile, And Mexico On Imported Berries, Kayla Felicia Gardener

Agribusiness

Growing consumer demand for knowledge in the area of food safety and producer accountability on what is applied to fresh produce is resulting in a greater need for transparency in the industry. Additionally, the demand for safe, fresh produce year round has led to extensive international trade and consumers to wonder if imported produce is of the same quality of that in produced in the U.S. The study analyzes the differences and similarities between pesticide application tolerance standards, and labels for applied use on berries produced in the U.S., Mexico, and Chile. This is done by reviewing tolerance ...


Grass-Fed Dairy Steer Enterprise Analysis For Alexandre Family Ecodairy Farms, Joseph Jackson Alexandre Jun 2013

Grass-Fed Dairy Steer Enterprise Analysis For Alexandre Family Ecodairy Farms, Joseph Jackson Alexandre

Agribusiness

Alexandre Family EcoDairy Farms (AFEF) is a family dairy farm, producing organic milk in northern California. In the last decade, AFEF has been expanding in value added natural food enterprises, including pastured free-range eggs, pastured pork and grass-fed beef.

This study focuses on the analysis of an organic grass-fed ground beef from dairy-beef cross steers coming from AFEF. The grass fed beef enterprise was analyzed by adopting a UC Davis cost and returns study, modifying it to AFEF production limitations and conditions. Through partial budgeting analysis, opportunity costs were discovered leading to breakeven prices for the final grass fed ground ...


Evaluation Of The Brock Center For Agricultural Communication, Jennifer Ray Jun 2013

Evaluation Of The Brock Center For Agricultural Communication, Jennifer Ray

Agricultural Education and Communication

The author of this project currently serves as one of the Student Associates of the Brock Center for Agricultural Communication and the Editor-in-Chief of both Ag Circle and PolyCulture magazines. This past year, she served as the student representative on the Advisory Council for the Agricultural Education and Communication Department. Additionally the author has served as the Cal Poly Agricultural Communicators of Tomorrow (ACT) Chapter President and currently serves as the National Second Vice President of the organization. The author’s experience with all of these aspects of the Cal Poly Agricultural Communication program has guided in producing this report ...


Effects Of Post-Castration Interval Length On Recovery Of Epididymal Sperm Of Canine And Equine Sperm, Jordan Escobar Jun 2013

Effects Of Post-Castration Interval Length On Recovery Of Epididymal Sperm Of Canine And Equine Sperm, Jordan Escobar

Animal Science

No abstract provided.


The Correlation Between Veldt Grass (Ehrharta Calycina) And Reproductive Condition Of The Lompoc Kangaroo Rat (Dipodomys Heermanni Arenae), Jacqueline Mae Bates Jun 2013

The Correlation Between Veldt Grass (Ehrharta Calycina) And Reproductive Condition Of The Lompoc Kangaroo Rat (Dipodomys Heermanni Arenae), Jacqueline Mae Bates

Biological Sciences

The invasive species, Veldt grass (Ehrharta calycina), has come to dominate coastal dune shrub vegetation along the Central Coast of California. Along with creating many land management obstacles, this grass has become dominant in the open habitat of Lompoc Kangaroo Rats (Dipodomys heermanni arenae). It is hypothesized that, due to a lack of suitable kangaroo rat habitat, during the breeding season months of March and April, there will be significantly fewer reproductively active females in areas of relatively high Veldt grass cover as opposed to relatively low Veldt grass cover. This study used data from a long-term demographic study on ...


Creation Of A Pamphlet On Young Tree Care, John G. Sanchez Jun 2013

Creation Of A Pamphlet On Young Tree Care, John G. Sanchez

Horticulture and Crop Science

No abstract provided.


The Effect Of Mulch Type And Thickness On The Soil Surface Evaporation Rate, Michael Mcmillen Jun 2013

The Effect Of Mulch Type And Thickness On The Soil Surface Evaporation Rate, Michael Mcmillen

Horticulture and Crop Science

There is a continual drive to conserve water and improve irrigation efficiency in agriculture, especially in regions where water resources are limited and regulated. Mulching is one cultural practice which can be used to reduce water needs. Using certain agricultural byproducts as mulch is a sustainable practice which can provide other benefits as well such as improving soil. Wheat straw, grass clippings, and leaf debris are fairly abundant byproducts which can be used as mulch. An experiment was conducted to determine which of these readily available mulching materials would be best at conserving soil moisture, and at which thicknesses, 5 ...


Business Strategy For A Newly Designed Husk Fly Trap, Taylor Denney Jun 2013

Business Strategy For A Newly Designed Husk Fly Trap, Taylor Denney

BioResource and Agricultural Engineering

This senior project discusses the analysis, evaluation and business strategy for a newly designed Husk Fly Trap from Ag Chem Wholesalers located in Yuba City, California. This prototype is designed to hold 2 to 3 weeks’ worth of Ammonium Carbonate and alleviate the hassle of monitoring the Walnut Husk Fly. This system is cost affective, able to hold the same amount, or 2 – 3 weeks, of Ammonium Carbonate as a “supercharged” trap. The Prototype Trap is easier to handle by not having to replace blown away traps or ruined sticky cards saving Pest Control Advisors time and allowing them to ...


Design, Construction And Cost Analysis Of Manufacturing Horse Bits, Erica L. Timmermans Jun 2013

Design, Construction And Cost Analysis Of Manufacturing Horse Bits, Erica L. Timmermans

BioResource and Agricultural Engineering

This report discusses the design, fabrication and cost analysis of two unique horse bits. On the market today, there are many different kinds of bits to serve a multitude of purposes. However, this project explored the option of having two different shanks types made of stainless steel in addition to three mouthpieces that are able to fit in both types of shanks.


Impact Of Hydraulic Fracturing On Ground And Surface Water Resources, Reyna Schenck Jun 2013

Impact Of Hydraulic Fracturing On Ground And Surface Water Resources, Reyna Schenck

Natural Resources Management and Environmental Sciences

The following study examines hydraulic fracturing operations in the United States in relation to groundwater contamination, withdrawals of freshwater resources, and jurisdictional authority over the activity with the purpose of producing objective analysis of research findings. With a growing population and increasing energy needs, hydraulic fracturing is expanding across the nation, as is public concern over the risks to freshwater resources. Because of the difficulty in identifying non-point sources of water pollution, a lack of legitimate water samples representing baseline conditions, and incomplete lists of chemical additives used, study results are often inconclusive as to the correlation between hydraulic fracturing ...