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- Creator:
- Liu, Tiewei
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Creator:
- Liang, Hong, Chen, Yunyun, De Almeida, Mauricio, and González, Jorge
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Creator:
- Wenger, Jacob and Michel, Andy
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Creator:
- Mandaville, Alison M., Weinman, Beth, Nelson, Frederick L., and Brady, Mara
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Creator:
- Wenger, Jacob and Espindola, Crystal
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Creator:
- Parry, Sarah, Abe, Jun, and González, Jorge
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Creator:
- Nordquist, Vey M. and Billen, Rhett M.
- Description:
- Parents of young children with disabilities engage with their children in ways that are simultaneously similar to and distinct from parents of children without disabilities. This study examined the measurement equivalence of a self-report scale of parental engagement piloted among parents of children receiving early intervention services. The survey included generic as well as unique elements of parental involvement. Exploratory factor analyses demonstrated a unidimensional structure for both mothers and fathers. Dyadic confirmatory factor analysis provided evidence of configural and metric equivalence. These results indicate that mothering and fathering can successfully be examined using the same measure of parental engagement.
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Creator:
- Mate, Lindsay C. and Kennedy, James A.
- Description:
- Harvest decisions have significant effects on finished wine. The most commonly used indicators of ripeness measures sugars, acids, and pH, but they do not provide much information about a wine’s anticipated quality and may overlook some of the most important aspects of quality grape growing, namely, the development of desirable flavor and aroma compounds. Grape phenolic content has been linked to wine quality. …..Phenolic material is located in the cell’s vacuole. While phenolics are a contributor to wine quality, they should not be viewed as the definitive metric, but rather, an indication of grape “readiness”. The aim of this study is to determine the connection between initial release of phenolic material and wine composition in order to develop a new analytical method for grape “readiness” measurement.
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Department:
- Viticulture and Enology
- Creator:
- Denlinger, Lincoln and Wenger, Jacob
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Creator:
- Parkinson, Dilworth Y., Chen, Yunyun, Liang, Hong, Yue, Yuan, González, Jorge, and Sanchez, Carlos
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Department:
- Child, Family and Consumer Sciences
- Creator:
- González, Jorge, Llamas-Gonzales, Francisco, Cusumano, Antonino, and Roberts, Bruce
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Creator:
- González, Jorge and Servin II, Vincent
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Creator:
- Nordquist, Vey M. and Billen, Rhett M.
- Description:
- This analysis utilized the actor-partner interdependence model (APIM) to investigate determinants of mother and father involvement among families of children previously diagnosed with disabilities participating in a state-run early intervention program. Actor effects were found from parenting self-efficacy (PSE) and parental role salience for both mothers and fathers. One partner effect was found from mother couple relationship quality on father involvement.
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Creator:
- Kennedy, James A., Ebisuda, Nona C., Mate, Lindsay C., and Cleary, Michael T.
- Description:
- In order to develop an improved understanding of the extent to which tannin chemistry can vary within a single variety, samples form 38 blocks (three replicates) of Cabernet Sauvignon sourced from regions of California ranging from the southern San Joaquin Valley through Sonoma were studied. Blocks represented variation in allocation grade as assessed by the cooperating winery, and growing climate. Tannin information was collected from exhaustive extracts of isolated skin and seed tissue as well as from a partial extraction system designed to investigate the potential impact of physiological integrity of tannin extraction. Extracted tannins were purified by solid phase extraction and analyzed by acid-catalyzed cleavage in the presence of excess phloroglucinol which provided information on subunit composition and average degree of polymerization. In addition, purified tanning extracts were analyzed by gel permeation chromatography (GPC), which provided information on tannin size distribution and flavan-3-ol amount. For berry samples, berry weight varied from 0.72-1.36 gm/berry and 1.3-1.8 seeds/berry with no observed geographical relationship. For exhaustive seed extracts, the tannin average molecular mass at 50%, as determined by GPC, varied form 2331-3646 molecular mass units, with no concentration ranging from 1.2-3.1 mg/gm berry weight for tannin, an d0.07-0.36 mg/gm berry weight for flavan-3-ol monomers. For exhaustive skin extracts, (-)-epigallocatechin subunits comprised 34-48 mol % of total extension subunits. The proportion of skin tannin in the partial extraction system varied from 36-86% suggesting a large potential variation in the wine skin tannin contribution. Overall, the results from this study indicate that across regions a large impact on fruit tannin concentration and compostion.
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Department:
- Viticulture and Enology
- Creator:
- Daane, Kent, Wenger, Jacob, Vulchi, Rohith, and Ellis, Margaret
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Department:
- Industrial Technology
- Creator:
- González, Jorge, Liang, Hong, Chen, Yunyun, and Pedraza, Julie
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Creator:
- González, Jorge, Camino, Dakota, and Cusumano, Antonino
- Resource Type:
- Poster
- Campus Tesim:
- Fresno
- Creator:
- Manzanarez, Karlos and Nguyen, Amanda
- Description:
- Biomass is currently being researched as an alternative to fossil fuels because it does not have a finite supply. Biomass refers to organic matter such as wood, agricultural products, solid waste and natural gas that all contain precursors to high energy molecules. A challenge in using biomass as a fuel is that large numbers of oxygen atoms must be removed to increase the overall energy density. Deoxydehydration (DODH) is the name of the process that converts vicinal diols into alkenes. When DODH reactions are catalyzed, the reactions may be carried out in the presence of a metal oxide catalyst and reductant. In the current work, a vanadium complex was synthesized and adsorbed onto a silica support in order to form a heterogeneous catalyst. Several vanadium to silica ratios were synthesized and tested for DODH catalysis. Initial studies investigated conversion of styrene glycol into styrene. Catalysts synthesized at higher temperatures with higher vanadium:silica ratios were more effective for converting styrene glycol into styrene. Properties of supported catalysts are not fully understood and supported catalysts have not been widely studied for DODH reactions. This experiment demonstrates that supported catalysts are effective catalysts for DODH reactions. Extensions of the work will tailor catalysts for higher product yields and direct biomass conversion.
- Resource Type:
- Presentation, Abstract, Student Research, and Poster
- Campus Tesim:
- Pomona
- Creator:
- Vega, Ulises, Schicker, Philippe, Chahla, Basel, and Rodriguez, Brian
- Description:
- Unmanned Aerial Vehicles (UAVs) are aircrafts that are either controlled remotely by a human from a ground station or by an on board computer. There are various types of UAVs such as fixed wing drones as well as quadcopters and hexacopters, all of which use rotating blades. Originally, drones were used in areas deemed too dangerous for humans with exclusive applications in the military sector, but recent enthusiasm has led to an expansion into commercial, scientific and recreational areas. The goal is to embellish a drone with a Collision Avoidance System (CAS). Such a system uses ultrasonic sensors to detect potential objects that are in the flight path of the aircraft. It then measures and displays the distance between hazards and the UAV. The drone also records live video footage, with its camera, which is sent to goggles or a display. The skills applied to the project include learning how to solder, wire, read blueprints, use mechanical tools as well as the methodology of assembling, building, and programming drones. To accomplish this, three sensors are placed strategically on the front, rear and bottom of the UAV. These sensors are connected to an Arduino (a single-board microcomputer) that is coded to send the data to the ground station. At the station, another microcomputer is connected to a radio receiver. This receiver collects specific information and displays them on an LCD screen.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Samad, Liana S. Ab, Lee, Kun Justin, Magin, Ashley, Riedel, Stefan F., and Lwin, Phillip M.
- Description:
- Microbial contaminations in food and water may post a threat to public health. Ice is defined as a food by the U.S. Food and Drug Administration (FDA). According to the International Packaged Ice Association (IPIA), approximately 2 billion bags of ice are sold from retail, wholesale, and vending producers each year in the U.S. Out of 700 commercial ice-making companies, 200 of the aforementioned are not represented by the IPIA and do not comply to specific packaged ice processing standards. Potential sources of microbial contamination in ice may come from water, equipment, and handlers. Non-IPIA complied samples were collected from gas stations, liquor stores, or convenient stores in Los Angeles and Orange counties. The microbiological quality of non-IPIA complied ice samples were compared the results with the IPIA-complied packaged ice samples using microbiological, molecular, and sequencing analyses. Among the 132 non-IPIA complied packaged ice samples analyzed, 15 samples contained unsatisfactory level of heterotrophs (≥ 500 Most Probable Number [MPN]/100 ml), 12 samples contained unsatisfactory level of coliforms (≥ 1 MPN/100 ml), 19 samples had Staphylococci, and 70 samples had yeast/molds. None of the 24 IPIA-complied samples had unacceptable microbial levels. None of the samples analyzed showed the presence of the pathogen, Salmonella. Our results revealed the microbiological quality of non-IPIA and IPIA complied ice samples in Southern California. These findings may lead to a better enforcement of processing standards on packaged ice.
- Resource Type:
- Poster
- Campus Tesim:
- Pomona
- Department:
- Biological Sciences Department
- Creator:
- El-Issa, Rafed
- Description:
- Modern day technology's consistently fast development is no longer a surprise to the users and consumers of it. The sheer speed at which technology develops has numbed citizens' to its continued improvements, creating an environment where society only feels awe when its development becomes gradual. Most users often overlook a crucial aspect of the technology they make use of: its ability to manipulate data in some manner. Regardless of the industry in which technology is being used, data is almost always a key factor and is much more precious than everyday users believe it to be. Data hiding and encryption is a key function enveloped within any technology used to process data. My design project is aimed to provide a live simulation of how specific data that is useful to a party would need to be transferred to ensure security and integrity. It utilizes a sonar to acquire the distance of an object in its perimeter, a microcontroller unit (MCU) to process this data anonymously, and a Field Programmable Gate Array (FPGA) unit with an embedded microprocessor to retrieve this data and encrypt it so that it is not easily accessible to anyone. The only way to access this data is to have a specific key in one's possession. This simulation offers users a hands-on understanding of how precious data is processed during communication of interested parties.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Alestwani, Burhan and Melendez, Ryan
- Description:
- As the demand for computational power increases, the need to develop cost efficient methods for computing is constantly rising. To help solve this issue, our research is dedicated towards developing low power computational technology while being a cost-efficient solution compared to other resources. The project is aimed towards using Field Programmable Gate Array (FPGA) platforms that can be reconfigured and applied for use in image processing, data mining, and medical applications. The objective is to implement the maximum units of soft-core processors (Micro-Blaze) efficiently on a single FPGA chip while using the minimum amount of resources. The process for testing was performed using Discrete Fourier Transform (DFT). The next objective is to design communication interfaces to connect the multiple low-power FPGA platforms for rapid scalability. This allows the FPGA boards to be used in large scale projects and support the high computational demand for the power-hungry applications.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Oliver, Pi Raymond
- Description:
- Advancements in machine learning over the past several decades have provoked a sharp increase in humanity's ability to gather and analyze bulk data at a deep level of understanding - and use that data to make informed decisions and solve critical issues. Artificial Neural Networks (ANN's) have been used to handle analysis of various high-dimensional data types - including audio, video, visual, and numerical data. Medical Infrared Thermography (IT) utilizes infrared light to produce surface-temperature measurements of thermal images which may be used for medical diagnosis and analysis. Surface temperature thermograms give insight into the subsurface blood flow and tissue properties in a medically non-invasive and cost-effective manner. Image analysis of thermograms with ANN's have already been used to diagnose conditions and identify patterns in medical imagery for humans and many other species - but in particular - there are not many examples in the literature of its use in dogs (Canis lupus familiaris). Dogs have varying thermal surface temperature patterns based on breed/mix, coat type, relative size, and other characteristics. Our research seeks to identify a normal thermal pattern/range of dogs and determine how machine learning technologies may be applied to diagnose medical phenomena therein. We are developing a Convolutional Neural Network that seeks to analyze paired thermal/visual images of dogs alongside numerical data and determine if the dog has a normal or abnormal thermal pattern. Further classification, training, and network optimization may lead to increased diagnostic capability.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Brown, Aaron, Santana, Anthony, and Khatri, Hemisha
- Description:
- West Nile virus (WNV) is a neurotropic flavivirus capable of causing irreparable neuronal injury and encephalitis which can potentially result in lethal disease. In order to control WNV replication and any associated neurologic disease, it is vital that anti-viral T cells enter the central nervous system (CNS) and become fully activated. Dendritic cells (DCs) are powerful APCs responsible for activating T cells and regulating their effector immune responses, however, their role within the CNS during WNV encephalitis remains uncertain. Previously, we detected the presence of DEC-205-expressing DCs within the perivascular spaces of the CNS during WNV encephalitis. DEC-205 is an endocytic receptor expressed on a subset of DCs which have been shown to be effective at cross-presentation and initiating anti-viral immunity. We hypothesize that DEC-205 expressing DCs are critical in the immune defense against WNV encephalitis via the activation of anti-viral T cell immunity. In this study, the ability of DEC-205 expressing DCs to limit viral infection, replication, and neuronal injury will be examined utilizing a well-established mouse model of WNV encephalitis in DEC-205 expressing wild-type (WT) mice and DEC-205 gene knockout (KO) mice following WNV infection. In future studies, utilizing the same mouse model, the mechanisms by which DEC-205 expressing DCs are able to induce protection against WNV encephalitis will be determined by investigating the a
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Singh, Parveena
- Description:
- Fanfiction allows people from various communities to celebrate their favorite fandoms, characters, and relationships together. Over the past decade, fanfiction has developed into a center for activism through the racebending movement in online communities like Tumblr. The following research focuses on how racebending in fanfiction provides women of color with a space where they can have creative power and a voice for their unique narratives by recasting white female characters with women of color instead. There is primarily a focus on women of color due to how studies show women having lower self-esteem with increased media exposure as opposed to men, and how stereotyped representations of female minorities on screen have a profound effect on girls of color. The research shows why racebending is of importance for women of color by highlighting the lack of central characters played by them in movies and television, as well as the lack of these women in creatives roles such as writers and directors. The deficiency of women of color both onscreen and off screen directly leads to the homogenous nature of mainstream media and the occurrence of whitewashing, which is detrimental because as Dr. Lori Kido Lopez presents in "Fan-Activists and the Politics of Race in The Last Airbender" it supports the idea that whiteness can stand in for all racial difference. Fanfiction counters this idea through racebending, where women of color can see positive representations of themselves by being producers of their own media instead of simply consumers of it.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Tasci, Amy
- Description:
- Butanol is a gasoline substitute and naturally derived, making the production of butanol of increasing importance. Butanol is produced through acetone, butanol, ethanol (ABE) fermentation pathway in some bacteria, including the Clostridium species. Because of the increasing interest in butanol production, understanding the metabolic flux through the ABE pathway is important for optimizing the recovery of the biofuel. Global profiling of the ABE pathway intermediates is difficult due to the volatile nature of the metabolites and their structural similarity. Our goal is to develop a procedure for the quantification of butanol and butyric acid using Nuclear Magnetic Resonance Spectroscopy (NMR). Due to the complexity of the spectra, traditional 1H-NMR is insufficient for quantification, so we developed 2D approaches for quantification that involve J-resolved spectroscopy (JRES) and Total Correlation Spectroscopy (TOCSY) through the application of a calibration curve. We created a calibration curve with standards and then tested the correlation of the expected concentration of an analyte with the known concentration, and found that they were in high agreement (R2 = 0.97). Overall, there were 4 successful reproducible trails. Although the 1H approach was the most accurate, we are working on improving the 2D approaches so that butanol and butyric acid can be quantified in a complex sample. Once these tests work on known sample, they can be moved onto real samples from Dr. Wei-Jen Lin's lab from Biological Sciences.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Osuna, Ivan
- Description:
- Human comfort in regards to clothing systems depends upon the ability of the fabrics and their construction to transmit perspiration away from the body. If the clothing system is inefficient in this regard, the wearer will experience a great deal of discomfort and physiological distress. It is critical, therefore, for the clothing to be "breathable" This project was an attempt to quantify the effect of environmental factors on the creation and transport of moisture/moisture vapor through different fabrics. The physics of the phenomenon will be described. The design and construction of a custom-made apparatus will be reported. The apparatus utilizes a controlled water heater, a humidity/temperature sensor, a fan, and a weighing scale. The results will be reported and discussed.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Kupsik, Jakub
- Description:
- Traffic congestion on the freeways is one of the worst issues in California. During peak hours, traffic can slow down to a stop-and-go crawl. A significant cause of this behavior is driving habits: human beings have a tendency to drive closer as they slow down, which makes merging difficult and exacerbates the slowness. The Tail Gator app uses machine vision to, when placed on the dashboard of a normal car, collect and relay information to the driver in a hands-free manner regarding the vehicle in front of them. It would tell the driver the distance and relative speed of the car in front of them, which the driver can then use to build good, anti-congestion driving habits and stop tailgating in traffic. The technology behind this has further applications: it could be used to recommend to drivers optimal speed and acceleration based on the traffic situation, which would also be useful in guiding the behaviors of self driving cars to better the road for everyone.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Agunos, Darwin
- Description:
- The Force Concept Inventory (FCI) is an important diagnostic tool widely utilized within the PER (Physics Education Research) community. While students' performance on the FCI has been extensively studied, relatively less work was done in primarily undergraduate institutions (PUI) and minority-serving institutions. As part of an effort to provide evidence for the reproducibility of educational studies for a variety of student body as well exploring possible gender or racial gaps in student's performance, data was collected over a year-long period for a number of introductory physics courses at Cal Poly Pomona (both a PUI and Hispanic serving institution) to understand factors that affect students' performance on the FCI. In this work, we discuss background variables that predict students' FCI scores at the end of the term. This baseline measure can be used for any future studies conducted at our institution to evaluate the effectiveness of any pedagogical reforms. We will also explore possible gender or racial gaps for our student body.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Raman, Isabella
- Description:
- In the present study, we plan to examine the neural correlates of the conscious recollection of long-term memories (LTM). This process is defined as the retrieval of qualitative or associative information during recognition, and a wealth of studies have shown it is dissociable from "familiarity", which is a strength-based type of recognition. However, fewer studies have focused on whether the cognitive and/or neural basis of recollection differs as a function of the type of association that is retrieved. We take up this question in the present study and hypothesize that the electroencephalographic (EEG) activity and event-related potentials (ERPs) associated with recollection following item-feature vs. item-item associative encoding differs. Following the performance of two mental imagery encoding tasks (separation imagery and interactive imagery), designed to promote dissociable levels of recollection of item-feature vs. item-item, respectively, yet comparable levels of item recollection, we will record EEG while participants perform a recognition memory task sensitive to the contribution of recollection or familiarity. This will permit us to investigate whether the specific ERP associated with recollection, the "P600 old/new effect", differs as a function of encoded association. We will examine whether overall oscillatory activity differs as well. of the brain that occurs during item recollection. Overall, we believe that our results will help inform neurocognitive models of recognition LTM.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Caudle, Mitchell, Lewis, Grace, and Retherford, Margaux
- Description:
- The integration of unmanned aerial vehicles (UAVs) into the national airspace system presents itself with a myriad of technical problems. One of the key requirements for this integration is the human equivalent level of safety, which requires the ability to detect and avoid other aircraft/obstacles in their flight path so that the UAVs complete their mission without any loss or damage to other aircraft or property. This presentation talks about the use of ADS-B (Automatic Dependent Surveillance- Broadcast) transponders for detection of collision of other similarly equipped aircraft/UAVs. ADS-B transponders can receive and broadcast global position and velocities among other pertinent information in a 100-nautical mile radius. This research used Ping-2020 ADS-B transponders for the collision detection. The collision detection and avoidance is first tested in software-in-the-loop simulation, which also uses the flight controller, Ardupilot, and ADS-B transponders in the loop. MAVproxoy, a UAV ground station software package, is used to communicate between in the autopilot and simulation environment via MAVLink. FlightGear flight simulator is used to visualize the motion of the UAVs. The research uses two fixed-wing aircraft equipped with Pixhawk autopilots, which allow autonomous waypoint navigation. The collision avoidance algorithms use a three-step system of detect, predict, and avoid. The algorithm calculates and sends the waypoints for collision avoidance to the autopilot. Using the kinematic equations, the UAV velocities can be calculated from the information received from GPS sensors, and future positions can be predicted. The collision avoidance algorithm is tested using the incoming information from real-time aircraft.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Abboud, Ibrahim
- Description:
- One of the issues that the world is facing is that we are running out of the fossil energy resources, and the use of renewable ones is currently limited. Recently, researchers have put lots of efforts to find a way to use biomass as one of the possible renewable sources. They realized that it is possible to convert this biomass material into organic compounds that are close to the characteristics of petrochemicals. One of the reactions that help in this process is the catalytic deoxydehydration (DODH), which is a reaction that removes two adjacent hydroxyl groups (-OH) from vicinal diols to produce alkenes. The DODH reaction requires a catalyst and a reducing agent that help in completing the reaction. According to the article " Deoxydehydration (DODH) of Biomass-Derived Molecules", the first catalytic deoxydehydration was demonstrated by Andrews and Cook using PPh3 as the reducing agent and Cp*ReO3 as the catalyst (1). Subsequently, researchers started synthesizing catalysts with different metals (such as rhenium, ruthenium, vanadium, or molybdenum) adding various reductants such as phosphines, sulfite, alcohols while changing the other parameters such as temperature and reaction time. In this research paper, molybdenum-based catalysts for DODH are discussed.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- McHugh, Joseph
- Description:
- We have developed molecular techniques to identify classes of cyanobacteria for early toxin threat detection and control before the growth becomes toxic. This screening is part of a larger sustainability project focused on converting dairy cow manure effluent into a fast-growing, algae-based, safe animal feed crop. The algae are produced in paddle-wheeled model ponds on the dairy farm which could become contaminated by toxic cyanobacteria. To ensure the integrity of our analysis, multiple species of pure cyanobacteria cultures were grown and their DNA purified. The 16S rRNA and rpoC1 gene sequences were targeted for their universal detection of cyanobacteria using PCR. To distinguish cyanobacteria species that have the potential to produce toxins, four gene clusters in the toxin synthesis pathways were targeted: mcy (microcystin), nda (nodularin), cyr (cylindrospermopsin), and ana (anatoxin-a). PCR-amplified fragments were separated using agarose gel electrophoresis and sequenced. 16S rRNA/rpoC1 PCR assays allowed for positive identification of quality control strains (QC) and exhibited the sensitivity and specificity to discriminate against multiple genera of non-cyanobacteria strains. Within our QC strains we have identified strains that indicate potential to produce microcystins, and anatoxin-a. Toxin production was quantitated using Abraxis/Beacon ELISA kits. Our future goal is quantitation of the toxin genes with qPCR. This protocol will routinely detect and identify the presence of cyanobacteria species that could produce toxins in algae production ponds and allow for their control in algae-based livestock feed operations.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Kuetzing, Peter
- Description:
- There are an estimated 100,000 cases of torn Anterior Cruciate Ligaments (ACL) in the United States each year. Although autografts and allografts are approved treatments, they are expensive, labor intensive, cause donor site morbidity, and require a lengthy patient recovery process. Despite decellularization treatments, DNA left in allografts can increase the risk of disease transmission and immunogenic response. Synthetic implants eliminate the harvesting procedure and have great biocompatibility. Understanding the time dependent properties of a synthetic material that closely matches those of native ligaments is imperative for ACL reconstruction innovation. PLG 10-90 (L-lactide -co-glycolide) monofilament is an absorbable biopolymer and strong candidate for ACL reconstruction. The biopolymer sufficiently matches average native ACL tensile strength and percent elongation to fracture. Additionally, the dissolution time of PLG 10-90 is approximately the same as ACL growth time. This inversely proportional relationship offers the potential of scaffold reconstruction procedures. This research will determine a set of evolutionary equations which predicts failure under a variety of conditions. Specimens are stored under an assortment of loads at in-vivo conditions. A specimen is then subjected to one of several tensile tests, including a jump test, to determine the properties at different time points. These tests illustrate the time dependent properties in terms of rate of dissolution and strain rate. This data will show a relationship between the strength of PLG 10-90 and its dissolution which is required to build a constitutive model and determine the viability for ACL reconstruction.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Aguilar, Rebekah
- Description:
- Measuring naturally occurring radioactive material is of great interest in monitoring soil and rocks, which are important in assessing health risks to a population and serves as a reference in documenting changes to environmental radioactivity. These measurement practices are taught to upper division physics students in laboratory. Physics students study gamma spectroscopy and isotopes that produce decays using Ge detectors, whose operation require liquid nitrogen cooling and is therefore costly. The use of an affordable and more portable detector, the NaI detector, without sacrificing the precision needed in upper division physics courses is being studied. Known decay products from sources containing 40-K, 238-U, and 232-Th were used for calibration. The gamma energy peaks that were measured include: 1440 keV for K-40, 1764 keV for the Uranium-238, and 2614 keV for the Thorium-232 series. A secular equilibrium was used to assume that the activity of each isotope within their decay series were the same. The results from the calibration sources indicate using the NaI detector for monitoring soil samples is efficient, cost effective and promising.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Arroyo, Fernando, Yau, Steven, and Nguyen, Richard
- Description:
- The purpose of this research is to make Cal Poly Pomona a more water sustainable community by looking at the following areas: water reuse and reclamation, stormwater management, and low impact developments. The amount of stormwater for the campus is 2035.96 acre-foot per year which is a commodity and is being lost every year. Buildings and parking lots are not environmental friendlies because they collect water with waste which could be improved on. To begin, the safe clean water program, a program that provides fund for projects in L.A. County, was analyzed for Cal Poly Pomona to become a potential project funded by the Measure W tax. Moreover, low-impact developments and native plants are examined in preparation for the survey of the campus. To organize the survey, a map of the campus is divided into four sections and the GIS data was utilize to obtain a better idea of the geography. Each section was inspected and discussed. Discussions focus on improving the reuse of stormwater and, implementing native plants and low-impact developments. The results of the survey showed that Cal Poly Pomona has a number of nonnative plants that could be replaced or removed, current drainage systems that need to be properly maintained, construction of low-impact developments such as rain gardens, bioretention, and dispersion and establishment of a new stormwater collection system. Overall, the survey shows that Cal Poly Pomona could benefit from Measure W by receiving funds and will benefit from our proposed scheme.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Foyil, Brad
- Description:
- Insemination must occur near ovulation, however in swine there is no practical way to determine when ovulation occurs. It is common practice to artificially inseminate (AI) each sow repeatedly over the course of an estrus period in an attempt to maintain fertility numbers. OvuGel® (JBS United, Sheridan, IN) is a product (intravaginal administered GnRH agonist triptorelin) that has been shown to synchronize ovulation in sows, allowing for a single fixed-time insemination to be used. Despite the promising results from initial studies using OvuGel, triptorelin uptake rates may be affected by a number of factors. Combining Ovugel with isotonic sodium chloride has the potential to increase uptake and the effectiveness of the compound. Identifying the optimal quantity of sodium chloride to maximize triptorelin uptake, increasing ovulation precision and maximizing farrowing rates all would provide a significant economic benefit to the swine industry.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Brady, Grant, Weiner, Nicholas, and Dietz, Derick
- Description:
- The gas turbine has been around in its modern form since the late 1950s with only marginal changes in overall construction design. These engines are open systems and do not have any pressure rises through the combustion chamber. A pressure rise during the combustion process has some significant thermodynamic advantages, that can lead to more work produced and a significant gain in efficiency as a system. This is the goal of our project. This project is a compact disk-shaped pressure gain combustor, which is a combination of piston and gas turbine engine concepts. The core of the engine is a stationary radial combustor in which constant volume combustion occurs using rotating inlet and outlet walls, resembling a valved combustor. When timed correctly with the engine's rpm and ignition, this effect will cause a gain in pressure. With the addition of a single stage radial flow compressor and proper fuel mixture in a centered plenum, this system should produce a significant amount of combustion work.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Khuu, Steven and Mata, Carolina
- Description:
- Bile acids play a large role in digestion by aiding in the breakdown and absorption of fats and oils entering the body. When these bile acids enter the intestinal tract, they can be converted into secondary bile acids, which have been linked to cancers of the gastrointestinal tract and other GI diseases. The bacterium Clostridium hylemonae can catalyze this conversion of the secondary bile acids and may contribute to the development of these diseases. C. hylemonae contains a bile inducible operon with many genes, including baiK. The baiK gene encodes an enzyme (BaiK) that is most likely involved in the transfer of CoA to and from substrates. Biochemical investigation is required to characterize how BaiK contributes to bile acid metabolism by C. hylemonae. To carry out these studies, a recombinant approach using E. coli was chosen. First, the cell line B-834 was transformed with a plasmid containing the baiK gene. The protein is then overexpressed and purified using column chromatography. After purification, BaiK will be used used for crystallization experiments and biochemical assays.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Markson, Jordan and Ancona, Janelle
- Description:
- Cal Poly Pomona has established a biosafety level 2 (BSL-2) facility for poultry vaccinology research. A central component of that research is the successful incubation and hatching of specific pathogen free (SPF) chicken eggs in the BSL-2 facility. In order to stimulate the best natural nesting, a cooling period (21.1°C) was implemented in one of the three treatment groups. The other two treatment groups maintained a temperature of 37.5 °C. The temperature change was implemented in order to see if cooling periods are essential to egg development, since hens will periodically leave their nest for short periods of time. We evaluated the hatchability rate with and without a cooling period for the SPF eggs in our BSL-2 Facility. 119 SPF chicken eggs were acquired by a commercial supplier. Eggs were divided into three treatment groups, one experiencing a 60 minute per day cooling period (n = 39) and two without a cooling period (n = 80). Eggs were placed in a cabinet incubator within the BSL-2 facility and incubation parameters, other than temperature were controlled for (humidity, temperature, turning interval etc.). Candling to evaluate egg development occurred after the 1st and before the 3rd week of incubation. Heart rate was taken as well before the 3rd week of incubation. This process determined the viability and development with each protocol. The first treatment group without a cooling period had a hatchability rate of 82.5%. The hatchability rate of the treatment group with the cooling period was 94.9%. The hatchability rate of the second treatment group without a cooling period is to be determined.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Sierra, Alan
- Description:
- Oral administration of Ibuprofen presents many challenges. Ibuprofen can cause upset stomach, as a hydrophobic drug it demonstrates poor gastrointestinal absorption due to its low water solubility , and as a result of the first pass response is reduced in concentration by the liver. Topical administration of Ibuprofen as oil-in-water microemulsion increases the bioavailability of the drug and as a result of bypassing the liver all together, increases its safety. In this study, different ratios of Medium-chain triglyceride oil and corn oil were used as solvents to increase the skin permeability of the drug along with Tween 80 surfactant to decrease the surface tension of the microemulsion and keep it in solution. All ratios set in 25% change of oil intervals were stable and the emulsion of 75% MCT, 25% corn oil, and .15g in 8mL DI water produced the smallest droplet sizes at .119 μm.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Bosek, Olivia, Marino, Arielle, and Guiragossian, Talia
- Description:
- Currently, our team is conducting a study that explores the educational experiences of college students who are parents. This is an important topic to study because this growing population has a different experience than the traditional college student. Not only do they plan to achieve a degree, but are simultaneously raising a child. Throughout this research, we examine institutional policies and practices that facilitate academic success for student parents in hopes to understand barriers they may face. According to previous research, many parenting students choose to pursue a college education because they view it as being beneficial in the long run as it can grant more job options, ensure financial security, and the ability to be a better resource for their children in the future (Estes, 2011). Despite the growing college population of parenting students, many face multiple issues which affect their ability to progress in higher education due to a lack of resources (Brown & Nichols, 2012). In order to gain a better sense of the level of support provided to student-parents, specifically across the Cal State University system, we analyzed the websites of the 23 Cal States. We conducted a content analysis, which included visiting each university's homepage and searching the website for resources useful to student-parents. The findings were then analyzed to compare similarities and differences found across the universities, which indicated, on average, limited support for student-parents. This research study aims to identify, create, and improve programs that will ensure student-parent success across the CSU system.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Nocedal, Arol, Castillo, Serena, Pitawanakwat, Alexander, Kuo, Chang-Hong, and Esparza, Alejandro
- Description:
- This project is part of a multi-year senior project, Aeroelastic Inflight Power Generation (AIPG), consisting of multiple teams working toward creating a 3D printed UAV (Unmanned Aerial Vehicle) to harness the power generated from multiple sources during flight and store such power in a graphene supercapacitor so the UAV may break the world record for autonomous flight. The objective is: Explore the integration of computer vision systems to assemble graphene supercapacitors. Two pieces of supercapacitor electrodes are assembled together in parallel, with the solid electrolyte membrane in the middle. The specific goal is to use a robotic arm to identify and lift a supercapacitor slab component by implementing a computer vision system and stack it on top of other supercapacitor slabs. This will be accomplished with a robotic arm from ROBOTIS incorporating their DYNAMIXEL technology and the real-time object detection system YOLO (You Only Look Once). The DYNAMIXEL has superior angular resolution and built-in sensors not requiring calibration testing to operate. YOLO allows cameras to be used as a versatile sensor to detect components as their design changes. This combined system decreases the man hours needed for supercapacitor assembly while avoiding human contact with hazardous materials. If designed and implemented well, this robotic method should improve the mass production of super capacitors, making it cost-competitive to existing lithium-ion batteries. Future work would implement the robotic assembly line in a cleanroom environment. Work done here would greatly contribute to the overall multi-year project AIPG, which involves collaboration with other disciplinary teams.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Alvarado, Marina and Ayala, Rita
- Description:
- West Nile Virus (WNV) is a significant cause of neuronal injury and inflammation and is commonly spread to humans through the bite of infected mosquitoes. Currently, WNV is the leading cause of mosquito-borne neuroinvasive disease in the US with which there is no cure. In order eliminate invading viruses from the central nervous system (CNS), antiviral T cells must enter the CNS and perform their anti-viral functions. These T cells must be highly regulated in order to prevent bystander damage of neuronal tissue. Dendritic Cells (DCs) are potent regulators of antiviral T cells and have been shown to have a protective role during WNV infection. These cells may be pivotal in regulating antiviral immunity within the CNS. However, they are not readily present within the CNS and it is unkown how they are recruited during WNV infection to induce protective immunity. XCR1 is a chemokine receptor expressed by a subset of DCs known to have a key role in antiviral defense. Lymphotactin, the ligand for XCR1, is expressed by activated T cells, DCs, macrophages, and NK cells. We hypothesize that CNS-infiltrating T cells express lymphotactin in order to recruit XCR1 expressing DCs which in turn will induce and regulate their antiviral activities. This ensures effective viral clearance while simultaneously protecting against neuronal injury. In order to determine the role of lymphotactin, we will measure viral infection, replication, and neuronal injury in a well-established WNV neuroinvasive mouse model both in the presence and absence of lymphotactin.
- Resource Type:
- Abstract, Poster, Presentation, and Student Research
- Campus Tesim:
- Pomona
- Creator:
- Flalkoff, Linda
- Description:
- GMA 400L - Senior Seminar Research Lab and Within this century, 2,400 miles of major roadway are projected to be inundated by sea level rise in the Gulf Coast Region. Roadways are at risk in the event of a sea level rise of about 4 ft, which is within range of projections for this region in this century. In total, 24% of interstate highway miles and 28% of secondary road miles in the Gulf Coast region are at elevations below 4 ft. A program to develop Gulf Coast port facilities will less the economic impact of this sea level rise
- Resource Type:
- Poster
- Campus Tesim:
- Maritime
- Department:
- Global Studies and Maritime Affairs
- Creator:
- Garrard, Eric V. Jr
- Description:
- GMA 460L - Senior Seminar Research Lab and U.N. peacekeeping has a lot of failures such as Rwanda, Kosovo, and others. These failures can lead to in the loss of countless lives. They are also under trained as a fighting force, drawing from countries who have very low Per Capita GDPs.
- Resource Type:
- Poster
- Campus Tesim:
- Maritime
- Department:
- Global Studies and Maritime Affairs
- Creator:
- Mullaney, C. Paige
- Description:
- GMA 400L - Senior Seminar Research Lab and The United States merchant fleet has responded to multiple natural disasters in the past twenty years. They have used their wide scope and available fleet along with strategic positioning for timely response and assistance. Departments such as Military Sealift Command (MSC), the National Oceanographic and Atmospheric Administration (NOAA), and the Maritime Administration (MARAD) have all played vital roles in the first days after domestic and international disasters. With the magnitude of meteorological events expected to increase in coming years, the resources of existing response programs will be strained. A more cohesive relationship between the current government lead as well as non-governmental organizations and the merchant fleet should be considered. The merchant fleet can provide unique resources that have proven valuable in the cases of past disasters. Looking beyond military lead organizations and into the commercial deep water and brown water merchant fleets may prove pivotal in future disaster scenarios.
- Resource Type:
- Poster
- Campus Tesim:
- Maritime
- Department:
- Global Studies and Maritime Affairs