Digital Commons Network^™

Skier's Edge: Biomechanical Analysis, Benjamin T. Johannes

Master's Theses

ABSTRACT

Skier’s Edge: Biomechanical Analysis

Benjamin T. Johannes

The Skier’s Edge trainer can be used by novice or expert skiers. Testing was performed to analyze if the use of the Skier’s Edge could reduce in shear forces of the valgus moment on the knee joint and anterior cruciate ligament (ACL) due to lesser fatigue of muscle and a higher hamstring to quadricep (H/Q) ratio activity. This leads to a reduction of improper form and an increase in balance. Experiments performed observed the change in muscle activity with the use of the Skier’s Edge over time when compared to other forms …

Use Of Body Composition Imaging To Calculate 3-D Inertial Parameters For Inverse Dynamic Analysis Of Youth Pitching Arm Kinetics, Dalton James Jennings

Master's Theses

The objectives of this study were to 1) calculate participant-specific segment inertial parameters using dual energy X-ray absorptiometry (DXA) data (referred to as full DXA-driven parameters) and compare the pitching arm kinetic predictions using full DXA-driven inverse dynamics vs scaled, DXA mass-driven (using DXA masses but scaled centers of mass and radii of gyration), and DXA scaled inverse dynamics(ID) (using the full DXA-driven inertial parameters averaged across all participants), 2) examine associations between full DXA-driven kinetics and body mass index (BMI) and 3) examine associations between full DXA-driven kinetics and segment mass index (SMI). Eighteen 10- to 11- year-olds pitched …

Insulative (Direct Current) Dielectrophoretic Foul-Less Filtration In Microfuidic Systems, Matthew A A Whitman

Master's Theses

Filtration is a technology that is used almost ubiquitously in society from uses raging from filtration of macroparticles from water to pharmaceutical grade filtration products to remove anything larger than a protein. However, with such a wide range of uses, most filtration products have the same issue; membrane clogging (fouling) that prevents continuous use and requires frequent maintenance. This thesis hypothesizes that by applying a direct current (DC) to an insulating array of posts, they will create a foul-less insulative dielectrophoretic filter (iDEP) that does not clog since particles will levitate above the insulating array.

This thesis tested an inherited …

Inactivation Of Foodborne Pathogens During Cider Fermentation, In A Cider Model System And Commerical Cider, Kathryn K. Yamada

Master's Theses

Hard cider is an alcoholic drink made from fermented crushed fruit, typically apples. The popularity of this fermented alcoholic beverage has been on the rise within the last decade. Historically, hard cider has been deemed safe due to the presence of ethanol and the low pH. Although there is lack of scientific evidence to prove that hard cider will and can be safe from foodborne pathogens. Escherichia coli O157:H7, Salmonella spp., and Listeria monocytogenes are three predominate foodborne bacterial pathogens of concern in the food and beverage industry. Escherichia coli O157:H7 in particular has been associated with fresh produce and …

Prosthetic Thumb, Allison M. Sigdestad, Sahil Sharma, Cale Foreman

Biomedical Engineering

The Prosthetic Thumb Project is a senior design project completed by Biomedical Engineering Undergraduate students at California Polytechnic State University. This senior design project is aimed at designing a prosthetic thumb for a Cal Poly Pomona student who lost their thumb in an accident last year. The patient has ultimately lost between 30-40% of functionality of his left hand, and so we would like to give him that mobility back. Originally, the patient was worried about having a prosthesis, and wanted something more stagnant that would resemble the look of the thumb he lost. However, after working with him, we …

Esophageal Temperature Mapping And Monitoring Sheath, Nicole M. Rogers, Hillary Johnson, Alexander Silva

Biomedical Engineering

The purpose of this document is to provide a product development summary for an accessory device that joins an esophageal temperature probe and a mapping catheter together to be used during cardiac ablation. Catheter ablation therapy is performed in the left atrium, utilizing extremely hot or cold temperatures to create scar tissue and treat atrial fibrillation and other arrhythmias. The close positioning of the left atria adjacent to the esophagus presents a large risk as the extreme temperatures used during ablation can lead to esophageal damage or fistulas. This device is designed to integrate correlate data from the temperature probe …

Gesea Biosciences - Core Shell Pellet Manufacturing Device, Claire Edelman, Maria Medrano, Rachel Longoria

Biomedical Engineering

No abstract provided.

Housecalls Mobile: Virtual Stethoscope/Otoscope, Julia Kelley, Cullen Mcgee, Eduardo Uribe-Saldana

Biomedical Engineering

At the start of the project, our initial deliverables were to add a low cost camera into virtual otoscope and to add a pediatric attachment to the stethoscope. However, about half way through the first quarter (1.5 months into the project), our deliverables changed to the following: to design a housing unit for the selected otoscope camera and to increase battery life to allow for 12+ battery life. To accomplish our deliverables, we divided up the responsibilities as follows: One person headed the mechanical design, one person headed the electrical design, and one person served as a liaison between the …

As-890-20 Resolution On Class Attendance, Jerusha Greenwood, Ashlee Hernandez, Alan Faz, Tess Loarie, Kylie Clark

Academic Senate Resolutions

That the wording in Class Attendance policy be changed as follows: It is strongly urged that instructors accept the following “excusable” reasons for allowing students to make up missed work. And, be it further RESOLVED that the following clarifying language be added to the policy as excusable reasons for making up missed class work: B. Injury, illness, death, or any extenuating circumstances of close relatives (to include but not limited to natural, adopted, and/or in-law children, parents, legal guardian, siblings, grandparents, grandchildren as well as spouse or partner). Extenuating circumstances can be defined as serious and exceptional factors outside the …

Executive Committee - Agenda, 2/18/2020, Academic Senate

Academic Senate Agendas

No abstract provided.

Academic Senate - Agenda, 2/11/2020, Academic Senate

Academic Senate Agendas

No abstract provided.

Neurofibromatosis Type 1 Implicates Ras Pathways In The Genetic Architecture Of Neurodevelopmental Disorders, Jessica A. Kaczorowski, Taylor Smith, Amanda M. Shrewsbury, Leah R. Thomas, Valerie S. Knopik, Maria T. Acosta

Psychology and Child Development

The genetic architecture of neurodevelopmental disorders is largely polygenic, non-specific, and pleiotropic. This complex genetic architecture makes the search for specific etiological mechanisms that contribute to neurodevelopmental risk more challenging. Monogenic disorders provide an opportunity to focus in on how well-articulated signaling pathways contribute to risk for neurodevelopmental outcomes. This paper will focus on neurofbromatosis type 1 (NF1), a rare monogenic disorder that is associated with varied neurodevelopmental outcomes. Specifically, this paper will provide a brief overview of NF1 and its phenotypic associations with autism spectrum disorder, attention-deficit/hyperactivity disorder, and specific learning disorders, describe how variation within the NF1 gene …

Executive Committee - Agenda, 2/04/2020, Academic Senate

Academic Senate Agendas

No abstract provided.

Biofilm Remediation By Extracellular Polymeric Substance (Eps) Modification, Matthew Borglin

Baker/Koob Endowments Awarded Projects

With the help of the Baker Koob endowment this project was able to investigate the novel application of chemical modifiers on mature biofilms as a new potential method for its removal. The major challenge that this project initially faced was the designing an experimental procedure for consistent biofilm production in order for a comparison treatment across sampling surfaces and follow up experiments. However, the consistency was hard to determine until a reliable sampling method was established. Fortunately, after interacting with industry leaders in biofilm remediation technics a methodology was discovered that was recently approved by the Environmental Protection Agency as …

Off-Label Use Of Recreational Cannabis: Acid Reflux In Colorado, Jacqueline M. Doremus, Sarah S. Stith, Jacob M. Vigil

Economics

Medical cannabis access has been shown to affect clinical health outcomes and health care spending. Unlike medical access, which requires a doctor's recommendation for treatment and only applies to the limited conditions approved under the state's medical cannabis program, recreational access makes cannabis available over-the-counter (OTC). This may create additional benefits through off-label cannabis use to treat unlisted conditions, such as acid reflux, which affects two out of three Americans. Using the roll out of recreational dispensaries in Colorado in 2014, we estimate the change in retailers' market share of antacid medications using a difference-in-differences design. Antacid market share decreases …

Tiny Disco: A Cost-Effective, High-Fidelity Wireless Audio System, Luke Martin Liberatore

Computer Engineering

The Tiny Disco is a WiFi based concert system, featuring improvements on popular “Silent Disco” concerts. Rather than being tied to compression and bandwidth restrictions present in traditional silent disco systems, the Tiny Disco system can deliver 320kbps+ audio quality, and allows listeners to bring their own headphones, further lending to the high quality audio experience.

Tiny Disco uses a Raspberry Pi as the audio server, and Espressif ESP32 microcontrollers as audio receivers/clients. The Tiny Disco is primarily geared toward smaller concerts and niche events where audio quality is valued, though due to its WiFi-based architecture, it can be expanded …

Development And Validation Of The Maternal Distraction Questionnaire, Alison K. Ventura, Megan Hupp, Shawnee Alvarez Gutierrez, Rebeca Almeida

Kinesiology and Public Health

This paper describes the development of a self-report measure of mothers’ engagement in technological activities during mother-infant interactions. In Study 1, mothers (n = 332; infants: 3.8 ± 1.4 months) completed the Maternal Distraction Questionnaire (MDQ) and related questionnaires. Factor analysis revealed two distinct subscales representing engagement with technological distractors and perceived distraction. Subscales correlated with relevant measures of feeding styles, attachment, and infant eating behaviors and temperament. In Study 2, mothers (n = 24; infants: 3.8 ± 1.8 months) completed the MDQ and kept feeding activity diaries. Significant correlations between MDQ subscales and diary data were noted. …

Academic Senate - Agenda, 1/28/2020, Academic Senate

Academic Senate Agendas

No abstract provided.

A Qualitative Study Of Breastfeeding And Formula-Feeding Mothers’ Perceptions Of And Experiences In Wic, Rebeca Almeida, Shawnee Alvarez Gutierrez, Shannon E. Whaley, Alison K. Ventura

Kinesiology and Public Health

Objective: To explore Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) participants’ perspectives about why formula-fed infants are less likely to be recertified at 1 year compared with breastfed infants.

Design: Four focus groups of WIC mothers, stratified by language spoken (English or Spanish) and feeding mode (breastfeeding [BF] or formula-feeding [FF]).

Setting: Two WIC sites within Los Angeles County, CA.

Participants: Mothers of 6- to 12-month-old infants (n = 31) in the WIC program.

Phenomenon of Interest: Mothers’ perceptions of (1) how WIC supports BF and FF mothers; and (2) experiences of FF mothers in WIC, with …

Executive Committee - Agenda, 1/07/2020, Academic Senate

Academic Senate Agendas

No abstract provided.

Executive Committee - Meeting Minutes, 1/07/2020, Academic Senate Executive Committee

Academic Senate Minutes

No abstract provided.

Objects Of Affection Digital Exhibit, Grace Yeh, Jaime Ding, Jett Solana

Creative Works

The Objects of Affection Exhibit draws upon the personal papers of families featured in the Re/Collecting Project, an online archive and ethnic studies memory project of California’s Central Coast. The exhibit focuses on the bonds formed by diverse communities as evoked through their stories, photographs, letters, songs, and performances.

2019/2020 Robert E. Kennedy Library Annual Report, Robert E. Kennedy Library

Library Publications and Administrative Reports

Last when we re-branded our annual report as “Inside 35,” we had no idea that this year, Kennedy Library’s accomplishments would be realized largely outside 35. Since March 17, Building 35 has closed its doors to the campus community. Nevertheless, the Kennedy Library team has been successful in maintaining and supporting the Learn by Doing spirit, despite social distancing and remote work conditions.

Opendrop Software Development, Jiajun Guan

Electrical Engineering

To be able to transfer and mix solutions more efficiently and accurately during biology experiments, the Electrical Engineering department at Cal Poly University is planning to purchase or engineer the OpenDrop device. The OpenDrop device uses electro-wetting technology to control the movement of small droplets of water on a planar electrode array to transport and mix different solutions. This device is an open-source project and could be purchased online through the GaudiLab. The basic code of the system could be found in GitHub. With this code as a reference, the goal of this senior project is to develop the firmware, …

The Effects Of Covid-19 On Productivity In Project Management: A Case Study, Emily Lynne Gonzalez

Construction Management

The COVID-19 pandemic has affected many aspects of the construction industry and one of the main aspects that has been affected is productivity. Monitoring productivity on a job is important because it allows us to identify areas that take up the most time and thus gives us the opportunity to allocate resources effectively. Due to safety regulations and new protocols being put in place, the productivity levels on every job has changed. Whether its out in the field or in the office, workplace productivity has certainly been affected by COVID-19. This case study focuses on how the pandemic has affected …

Executive Committee - Meeting Minutes, 12/12/2019, Academic Senate Executive Committee

Academic Senate Minutes

No abstract provided.

Can Oral Contraceptives Increase Antibiotic Resistance In Escherichia Coli?, Allison Helene Clatch, Leah Van Otterloo

Baker/Koob Endowments Awarded Projects

Antibiotic resistance is one of the most pressing threats to public health. Intrinsic resistance to many antimicrobials in Gram-negative bacteria is accomplished by naturally occurring efflux pumps. Efflux pumps are transmembrane proteins that can extrude antimicrobials from bacterial cytoplasm. Efflux pumps recognize a wide range of compounds including antibiotics, antiseptics, pesticides, and hormones. The upregulation of efflux pump genes in response to increasing concentrations of substrates has shown to increase resistance to toxic substrates. We hypothesize that efflux pump substrates other than antimicrobials, such as steroid hormones, will also induce the expression of efflux pump genes and consequently increase resistance …

The National Dairy Council® New Product Competition: Developing Novel Performance Nutrition Beverage Using Dairy Protein Ingredients, Tina Truong, Patricia Lai

Baker/Koob Endowments Awarded Projects

According to "Statista" and “GlobalData" marketing research reports, the value of U.S. Sports Nutrition Market is forecasted to reach $21 billion; 39% of American adults and an additional 36% of consumers are in the market for food and beverage products targeted towards fitness. This market project stimulates growth for the dairy industry and the domestic market demand provides reason to develop more inclusions of dairy proteins in sports nutrition products. An ambient stable, ready to drink (RTD), high protein beverage is ideal in catering towards not only the targeted group of consumers, but anyone that is looking for convenience in …

Parks, Recreation, And Opportunities: A Case Study Of East Bay Regional Park District's Climate Change Mitigation And Adaptation Strategies, Brett Walsh

Experience Industry Management

In the face of a global climate emergency, community parks & recreation and land management agencies are beginning to adopt a critical role in the fight against climate change. This study gathered information on efforts around the world and created a case study guide to examine the climate change mitigation and adaptation strategies of East Bay Regional Park District in the San Francisco Bay Area of California in the United States. The study was conducted in hopes of shedding light on how small agencies can be proactive and contribute to larger efforts, creating greater regional impacts.

A Transfer Students Guide To Becoming A Pca, Zack J. Krueger

Agricultural Education and Communication

A transfer students guide to becoming a PCA through the AGED department as opposed to AEPS. Agricultural science majors. Classes shown and listed cooperate with the California Department of Pesticide Regulations required course list necessary to take the Pest Control Advisers exam.