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- Creator:
- Yocom, Jaden
- Description:
- The catastrophe of climate change is one which continues to grow more and more burdensome for humanity on a global scale. It is also a highly unique sort of issue due to the incomprehensible nature of all of its causes and effects. In this paper, I explore one particular consequence of climate change for humanity which is known as environmental migration. Environmental migration can be understood as the forced mobilization of an individual or a group of individuals due to environmental factors (such as natural disasters or severe resource depletion) that result from climate change. Those victimized by environmental migration are typically referred to as environmental migrants or climate refugees. In this essay, I argue against using the Rawlsian theory of justice to address the needs of climate refugees by developing critiques regarding historical injustice and moral responsibility. I instead support the Lockean theory of natural rights for addressing these needs and advocate for environmental reparations as a consequence of rights violations. I appeal to Boxil’s analogous argument regarding reparations for rights violations done unto the Black community. I conclude that environmental migrants continue to have their fundamental rights violated and deserve reparations for these instances.
- Resource Type:
- Thesis
- Campus Tesim:
- Pomona
- Department:
- Department of Philosophy
- Creator:
- Mercado, Fany
- Description:
- In this work we utilize two suites of 75 different simulations of major galaxy mergers based on the Gadget model (Springel & Hernquist+ 2003) and the novel "Feedback in Realistic Environments" FIRE model (Hopkins et al. 2014). These mergers are composed of spiral galaxies of mass ratio 2.5:1 and are set at various impact parameters, eccentricities, and relative spin-orbit orientations. We focus on the effect of interactions on the evolution of the size of the gaseous, stellar, and star-forming components of the galaxies.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Creator:
- Pierson, Melinda
- Description:
- Using the Loneliness and Social Dissatisfaction Questionnaire (Asher & Wheeler, 1985), significant differences were found for loneliness and social dissatisfaction among four groups of adolescents based on class placement and rank within placement. Results indicated that general education students were significantly less lonely than special day class students. In addition, the low-achieving group of adolescents was significantly lonelier and socially dissatisfied than the high-achieving group. Research must now focus on effective interventions for specific groups of adolescents who are at higher risk for feelings of loneliness and social dissatisfaction.
- Resource Type:
- Article
- Campus Tesim:
- Pomona
- Creator:
- Suzuki, Akiyoshi
- Description:
- Yukio Mishima, a Japanese novelist well known to people across the world, was not familiar with sports in his childhood and his adolescence. In 1955, at the age of 30, he trained his body and began to enthusiastically undertake sporting activities. Both before and during his sporting phase, Mishima wrote short essays and reports on sports and martial arts in newspapers and magazines. Those prose pieces were compiled chronologically according t o their themes into a volume entitled The Collection of Yukio Mishima’s Short Essays and Reviews on Sports . The short essays and reports in the anthology evidence Mishima’s views on life and death and his philosophy of sports, evincing the progressive chan ges in his beliefs as his devotion to sports and martial arts increased.
- Resource Type:
- Article
- Campus Tesim:
- Pomona
- Creator:
- Prajapati, Gaurav
- Description:
- Spermatogenesis pauses only at the penultimate stage, the spermatid. The pause ends when an external signal activates the spermatid into a spermatozoon. Activation involves two pathways: (i) the try-5 pathway, named because the trypsin-like protein TRY-5, in the seminal fluid activates spermatids during mating; and (ii) the spe-8 pathway, named because the SPE-8 group complex transduces the activation signal within the sperm after the cells receive an unknown activation signal. Mutations in the spe-8 group genes (spe-8, -12, -19, -27, -29, and -43) result in spermatids that cannot activate in unmated hermaphrodites. We focus on one target of the SPE-8 complex, SPE-6 a serine-threonine kinase protein. Here, we test the hypothesis that active SPE-6 maintains the spermatid stage, and loss of SPE-6 function results in activation. A suppressor screen from Samuel Ward’s laboratory with spe-27(it132ts) generated numerous suppressor mutations that restore partial fertility. The only gene to be hit multiple times in the screen was spe-6. Previously known null spe-6 mutations stall spermatogenesis at the transition from primary to secondary spermatocytes. In contrast, most spe-6 suppressor mutations cause premature spermatid activation. Five suspected alleles of spe-6 were examined through complementation crosses and sequencing; three of five were confirmed to be spe-6 alleles. The alleles uncovered: zq10, zq11, and zq18 are compared to known spe-6 alleles: hc166, hc187, hc188, and hc190 to get a broader view of spe-6. All alleles except zq11 were able to suppress the sterility of spe-29(it127). Additionally, mutant males had active sperm in their seminal vesicles, while wild type males never harbor active sperm. These suppressor mutations were located in various locations with respect to the 3D structure of the protein, and two others were intronic and altered a splice junction, likely reducing transcript availability. These results suggest that a reduction in SPE-6 can be brought about through loss of function point mutations or loss of transcripts, with the effect that sperm activate prematurely, bypassing the need for the spe-8 group pathway signaling. The unique allele zq11 is an allele specific suppressor of spe-27(it132ts): it does not suppress spe-27(it110) or spe-29(it127). Allele specific suppression vi provides genetic evidence that SPE-6 and SPE-27 proteins interact physically and suggests that SPE-6 is a target of SPE-8 group signaling. The two splicing mutations were replicated in spe-44 using CRISPR/Cas9 in an effort to induce conditional mutation in this important gene. However, neither mutation in spe-44 produced a phenotype.
- Resource Type:
- Thesis
- Campus Tesim:
- Pomona
- Department:
- Department of Biological Sciences
- Creator:
- Cambronero, Marcelo L. and Escalera, Feliciana Merino
- Description:
- The present paper analyses the terrible phenomenon of genocide, which represents a particular case of crimes against humanity. We attempt at accounting for the causes at the root of the phenomenon, starting from two concepts, which we argue as central: the notion of ‘type’ and its impact to community construction, and the concept of ideology; the latter, understood as a philosophical perversion flourishing in an unprecedented manner in the contemporary world, allows the demonization of a group and the gestation of social processes conducive to destruction, especially because the targeted group is viewed as carrying a particular community ‘type’.
- Resource Type:
- Article
- Campus Tesim:
- Pomona
- Creator:
- Banuelos, Karyna
- Description:
- Metallic alloys are often degraded when used in corrosive, high temperature environments such as in gas turbines or nuclear power plants. To mitigate these effects, the surface of the existing alloy can be modified through the halide-activated pack cementation method by applying a coating that contains the elements to form a protective oxide layer. In this study, pure nickel and nickel-chromium alloys were utilized as the substrates, with aluminum as the coating element. The goal of this study was to investigate the role of chromium in promoting or inhibiting aluminum diffusion. Results show that the chromium content of the alloy has a significant effect on the microstructure of the coating. Microstructural analysis using Scanning Electron Microscopy coupled with Energy Dispersive Spectroscopy (SEM/EDS) show chromium-rich particles near the coating-substrate interface. These particles are present throughout the coating in a zone that gets thicker as the chromium content of the alloy increases. In addition, as the percentage of chromium increases within these particles, that of nickel decreases sharply while the aluminum content remains fairly constant. This suggests that the addition of chromium inhibits the outward diffusion of nickel during aluminization. Coupons will further be studied using image analysis software to determine the fraction of chromium-rich areas in the coating.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Creator:
- Hang, Wendy
- Description:
- This project focused on stress management and K-8 teachers. It presented a handbook of strategies to help prevent and reduce teacher stress and burn out using peer reviewed research and best practices as discussed in Chapter Two of this manual.
- Resource Type:
- Graduate Project
- Campus Tesim:
- Pomona
- Department:
- Department of Education
- Creator:
- Chen, Michael
- Description:
- It is often of interest to stabilize and reorient the attitude of falling objects. The approach of interest in this study was the utilization of aerodynamic control surfaces. However, the parameters of such a system were not well-documented. Therefore, a physical vehicle was created in order to capture the behavior of this type of system. The vehicle was modeled, fabricated, and programmed for data collection. Launch and retrieval apparatuses were fabricated for safety. Freefall data was collected for various initial conditions. The data was then processed into a common reference frame. A method of calculating the full inertia tensor of an object was developed for proper modeling. The resulting experimental data was processed for analysis and a preliminary dynamic model was created.
- Resource Type:
- Thesis
- Campus Tesim:
- Pomona
- Creator:
- Chen, Michael
- Description:
- It is often of interest to stabilize and reorient the attitude of falling objects. The approach of interest in this study was the utilization of aerodynamic control surfaces. However, the parameters of such a system were not well-documented. Therefore, a physical vehicle was created in order to capture the behavior of this type of system. The vehicle was modeled, fabricated, and programmed for data collection. Launch and retrieval apparatuses were fabricated for safety. Freefall data was collected for various initial conditions. The data was then processed into a common reference frame. A method of calculating the full inertia tensor of an object was developed for proper modeling. The resulting experimental data was processed for analysis and a preliminary dynamic model was created.
- Resource Type:
- Thesis
- Campus Tesim:
- Pomona
- Creator:
- Ahadiatvt, Nasrollah
- Description:
- As the number and complexity of financial reporting standards (generally accepted accounting principles [GAAP]) continue to grow, non publicly-traded companies find it increasingly expensive to use the GAAP-basis of accounting. Likewise, small and medium-sized businesses often see no benefits in seeking the services of independent certified public accountants (CPAs) to audit or review their financial statements. Previous research reveals some evidence that small businesses are turning away from the GAAP-basis and find appeals in using other bases of accounting. This study investigates the significance of using alternative accounting basis as well as the extent of CPAs involvement with small or medium-sized firms for commercial banks’ lending decisions. Because banks represent a significant source of credit in most countries, particularly for small and medium-sized companies, bankers’ perceptions of reliability of financial statements has been used as the basis for this investigation.The study uses a cross-cultural design in order to detect any significant differences between the lending practices of the American and Asian-Pacific bankers. The results indicate that while both American and Asian banks require balance sheets and income statements in considering all commercial loan applications, variations abound with respect to other financial reporting issues. However, no cross-cultural differences were found concerning the choice of the accounting basis orthe required extent of financial statement verification.
- Resource Type:
- Article
- Campus Tesim:
- Pomona
- Creator:
- Lu, Zhaolu
- Resource Type:
- Article
- Campus Tesim:
- Pomona
- Creator:
- Madrigal, Alma
- Description:
- Understanding the molecular basis underlying the formation of bone-forming osteocytes and lipid-storing adipocytes will help provide insights into the cause of disorders originating in stem/progenitor cells and develop therapeutic treatments for bone- or adipose- related diseases. In this study, the role of RGS2 and RGS4, two members of the Regulators of G protein Signaling (RGS) family, were investigated during adipogenic and osteogenic differentiation of human mesenchymal stem cells (hMSCs). HMSCs are multipotent adult stem cells that normally reside in adipose tissue and bone marrow. They can be expanded and differentiated into mature adipocytes or osteocytes upon receiving the appropriate stimuli in vitro, making them an excellent cellular model for studying human adipogenesis and osteogenesis. Expression of RGS2 and RGS4 were found to be inversely regulated during adipogenesis induced by dexamethasone (DEX) and 3-isobutyl-methylxanthine (IBMX), regardless of the presence of insulin, with RGS2 up-regulated and RGS4 down-regulated. RGS2 expression was also up-regulated during osteogenesis induced by Ascorbic Acid-2-phosphate, B-glycerophosphate and DEX, at a level similar to that induced by treatment of DEX alone, a shared component of adipogenic and osteogenic differentiation inducing media, but significantly lower than the level induced by adipogenic inducing media. RGS4 expression was down-regulated during the first 48 hours of osteogenenesis but up-regulated afterwards, in both cases at levels similar to that induced by DEX alone. Expression knock-down using small interfering RNA against RGS2 resulted in decreased differentiation efficiency during both adipogenesis and osteogenesis. On the other hand, expression knock-down of RGS4 also resulted in decreased adipogenic differentiation but increased osteogenic differentiation. Taken together, my results demonstrate that RGS2 and RGS4 are differentially regulated during adipogenic and osteogenic differentiation of hMSCs, whose expression are regulated by both DEX and IBMX during adipogenesis but only by DEX during osteogenesis. In addition, both RGS2 and RGS4 play positive roles during adipogenesis, but opposing roles during osteogenesis, with RGS2 as a positive regulator and RGS4 as a negative regulator.
- Resource Type:
- Thesis
- Campus Tesim:
- Pomona
- Creator:
- Banuelos, Jake, Chahla, Basel, Nipp, Andrew, and Patel, Kishan
- Description:
- The research experience conducted this summer is about collision avoidance system for unmanned aerial systems (UAS) using stereoscopic vision. It is one of the focus areas of UAS research at the Cal Poly Pomona's UAS Lab. Collision avoidance using stereoscopic vision involves the detection of potential objects that are in the flight path of an aircraft using two cameras or stereo camera, analyzing the trajectory and speed of the hazard, then executing a maneuver that will move the aircraft away from the threat. The algorithm requires the development of a disparity map, which utilizes two cameras to measure the field depth that provides the necessary information required, such as distance from the UAV to the object, and velocity of that object . Two Point Grey Chameleon 3 cameras are mounted on a "Twin-Engine" UAV while using an Intel NUC board for onboard processing. The Intel NUC communicates with the autopilot, Pixhawk, which transmits data to the ground control station via 3DR radios. The Intel NUC generates a disparity map using an algorithm that uses the OpenCV library to process the images into the map. The algorithm will generate the disparity map that will be provided to the collision avoidance algorithm, which will guide the airplane to the location within the map with the least dense area. If one or more of the detected objects are deemed as a collision threat, the avoidance phase is initiated. This calculates the safest path to travel based on the least pixel dense region of the disparity map. The image processing algorithm is designed to remove noise in the image data.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Creator:
- Fernandes, Zoheth and Mahathanthila, Dampiya
- Description:
- Topical drug delivery is the most common treatment for diseases of the anterior segment of the eye such as glaucoma and uveitis. But treatment is limited by the low permeability of the multilayered cornea, rapid clearance by tear drainage, and absorption into the conjunctiva. Hence, the bioavailability of topically administered drugs is very low. A numerical model of topical drug transport in the anterior human eye is developed in this project, which is coupled with heat transfer and fluid flow in the anterior eye. Space and time-dependent evolution of drug concentration is then investigated numerically, with an emphasis on the drug concentration at three targets: the trabecular meshwork, iris and lens. An axisymmetric 2D eye model and a 3D eye model have been developed based on the data of past research work. The model has been developed using commercial software COMSOL Multiphysics contains anterior and posterior segment including the cornea, sclera, anterior chamber, posterior chamber, lens, vitreous, iris, Trabecular meshwork and ciliary body. Numerical results of the temperature distribution in the entire eye, steady-state aqueous humor flow field and the drug concentration distribution in the anterior eye have been generated. The results will help to understand the drug transport process in the anterior human eye, and provide guidelines of drug administration in order to improve the delivery efficacy.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Creator:
- Neville, Robert Cummings
- Description:
- In contexts of political philosophy, Confucianism is frequently identified as a culture with a long evolving history in China, with branches in other countries such as Korea, Japan, and Southeast Asia that were amalgamated with other local cultures, and now with a broader diaspora. In the diaspora, Confucianism usually is associated with local enclaves of East Asian people situated in other countries like “China towns.” All these parts of Confucian culture have been historically evolving and have differed from one another by how they have adapted to the larger cultural contexts. But they have continuity with one another by lineages of interpretation of core texts among the intellectuals and habits of social and ritual formation, such as an emphasis on family and filial piety. In these contexts of political philosophy, it frequently seems beside the point for non-East Asians to claim to be Confucians unless they “go native” in some East Asian culture.
- Resource Type:
- Article
- Campus Tesim:
- Pomona
- Creator:
- Oggionni, Tiziana
- Description:
- This study reports an investigation of the business-to-business (B2B) relationship between Destination Marketing Organizations (DMOs) and hotels. Whereas it is clear that, by promoting the destination, DMOs bring business to hotels, the focus of the study drawn towards the different services that DMOs provide to hotels to support them in their ordinary activities. A qualitative approach was adopted to conduct the study, and primary data were collected through two-phase semi-structured interviews with industry practitioners. A preliminary list of services was identified from the literature review and then integrated with the responses from the DMOs representatives interviewed. The protocol, improved by DMOs’ inputs, was then used in the second phase of the research to learn the hotels’ perspectives on the services received, as well as the areas that may need improvement. The following services were in particular analyzed: membership management, training and education, data and research, lead generation, publication, networking opportunities, and cost sharing for trade shows participation. While overall the relationship between DMOs and hotels appears healthy and satisfying, some discrepancies were found between the two perspectives, with the main differences pertaining to the priorities given to some services (e.g.: lead generation and data) or in the awareness of what is available (e.g.: educational programs). Theoretical implications and practical recommendations are provided to improve the value of the relationship between DMOs and hotel partners.
- Resource Type:
- Graduate Project
- Campus Tesim:
- Pomona
- Department:
- The Collins College of Hospitality Management
- Creator:
- Vega, DeAnna
- Description:
- Huanglongbing or citrus greening disease (Candidatus Liberibacter asiaticus) is vectored by the Asian citrus psyllid (Diaphorina citri Kuwayama). Currently, the most effective biological control agent for ACP is the parasitic wasp Tamarixia radiata. Feeding and egg-laying habits of ACP were studied by manipulating the plants they fed and laid eggs upon, Citrus volkameriana and Murraya koenigii or curry leaf. This research was conducted in order to better understand how to create the optimum environment which would lead to the greatest numbers of ACP nymphs as a steady food supply for the mass rearing of T. radiata. ACP adults were released into cages with only curry plants, where they were allowed to feed and mate. Some were then transferred to cages with nine curry, while others to cages with eight curry and a single citrus plant. Data collected showed that ACP adult females laid more eggs when introduced to a mix of citrus and curry leaf plants. Furthermore, the numbers of nymphs on the monoculture of curry leaf were not as dense in comparison to the cages with curry and citrus combined.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Department:
- Plant Science
- Creator:
- Guardado, Eleana and Rubio, Jennifer
- Description:
- Herpes Simplex Virus 2 (HSV-2) causes recurrent genital lesions. This study examined the efficacy against murine vaginal Herpes infection using an HSV-2 gD tripeptide (gD3pep) liposomal vaccine (LV) with Lipidated or Non-Lipidated Tucaresol (LipT or NLipT) adjuvants. Methods: LV or phosphate buffer (PBS) were administered 3X subcutaneously(SQ) to BALB/c mice on d0, d28, d56. LV contained gD3pep (15μg/dose) and LipT (3μg or 5.6μg/dose), NLipT (5.6μg/dose), MPL (monophosphoryl Lipid A,15μg/dose) or LipT (3ug/dose) plus MPL (7.5ug/dose); controls were LipT or NLipT (5.6μg/dose) without gD3pep, or PBS. Medroxyprogestrone was given SQ d63 and d69 to enhance virus infectivity and mice challenged intravaginally with HSV-2, d70. Disease signs and morbidity were monitored 2X/day for 28 days. Vaginal swabs collected d72 were analyzed for vaginal viral burden. Results: Survival with gD3pep and LipT (3ug/dose) plus MPL (7.5ug/dose) (100%), MPL (15ug/dose) (100%) or LipT(5.6μg/dose) (90%) was significantly better than vaccination with NLipT (5.6μg/dose) with no protein (11%) or PBS (0%) (¬¬p <.0047). Disease signs and viral burden paralleled survival data. There was also a significant difference in viral burden between the gD3pep liposomes having different LipT doses or the combination of LipT plus MPL versus PBS (p<0.0129). Conclusions: gD3pep liposomes containing LipT at 5.6μg/dose, LipT (3ug/dose) plus MPL (7.5ug/dose) or MPL (15ug/dose) each generated significant protection against a murine intravaginal HSV-2 challenge. The marked efficacy seen using the combination of LipT plus MPL at lower doses, indicate that these adjuvants are not antagonistic and may further enhance the immune response when used in combination.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Creator:
- Delgado, Jimmy Vincent
- Description:
- The Local Control Accountability Plan (LCAP), also known as the Local Control Funding Formula (LCFF), was enacted in California in 2013-2014. The legislation allows local California K-12 school districts to create their own spending plans with input from the various stakeholders (students, parents, teachers, administrators and community members). Previous spending plans were guided by categorical funding guidelines from state legislators. This new legislation puts the responsibility and accountability on the local school districts to create viable spending plans tied to student achievement. The (LCFF) new decentralized paradigm of fiscal governance is in its fifth year of implementation. California’s K-12 school districts are attempting in various manners to fulfill the spirit and intent of the law as the understanding of the law matures as a result of yearly new LCAP plans. The study was conducted at Charter Integrity School in National City, California. The study is a qualitative descriptive analysis of how the school site created their LCAP plan. The study describes how decisions took place and the process of stakeholder input based on the eight areas of state priorities: 1) pupil achievement, 2) pupil engagement, 3) pupil outcomes, 4) school climate, 5) parental involvement, 6) basic services, 7) implementation of state standards, and 8) course access.
- Resource Type:
- Dissertation
- Campus Tesim:
- Pomona
- Department:
- Department of Education
- Creator:
- Rogers, Desiree
- Description:
- During the aquatic nymphal stage, dragonflies possess a modified labium that functions as a high-speed raptorial appendage used in prey capture. During labial protraction, a preparatory phase of slow protraction is followed by the release of a latched knob-like structure in the elbow region of the labium, which results in a fast strike phase when the appendage rapidly accelerates. The strike phase appears to be elastically powered, where relatively slow muscle contraction before and during the preparatory phase stores energy in associated elastic elements, and this energy is recovered via rapid recoil of the elastic structures once the latch disengages to produce a ballistic high-speed movement. I hypothesized that the performance (e.g., velocity, acceleration, power) of the muscle powered preparatory phase should be thermally dependent, whereas the performance of the prospectively elastic strike phase should be thermally independent. To test this hypothesis, individual nymphs were recorded (two cameras at 1000 Hz) capturing prey (California blackworm) across a temperature range of 15–35°C. I found significant temperature effects on the duration, distance, and average velocity of labial protraction during the preparatory phase. This result was expected, given that the shortening velocity of ectotherm muscle is known to be temperature dependent. In contrast, all kinematic variables of the strike phase maintained peak performance across all temperatures. The previously documented energy storage and latch characteristics involved in this prey-capture mechanism, coupled with the high observed performance and thermal robustness presented in this study, provide strong evidence that dragonfly nymph labial protraction is an elastically powered movement like those observed in some other vertebrate and invertebrate systems.
- Resource Type:
- Thesis
- Campus Tesim:
- Pomona
- Department:
- Department of Biological Sciences
- Creator:
- Vega, David
- Description:
- Fluorescent microscopy has been a widely used technique in biomedical sciences to identify nanoparticles, viruses, organisms, molecules and many other things in different samples. In addition, many researchers have been modifying this technique to make it affordable and easily usable in any situation that a cellphone is available. For example, with this device a doctor in a low-income country can test for a bacteria or virus in a blood sample of a patient without having to access expensive laboratory equipment. Using a current working model developed by other students, we are testing its maximum resolution, and field of view. We are currently obtaining pictures using this model and analyzing them in ImageJ (a software to analyze image data) to determine its maximum resolution with the current lens of the model developed and the cellphone camera. Once we obtain concrete data for maximum resolution, we will determine its maximum field of view. Once we get the maximum resolution and field of view that we can obtain with this set up, we will try to determine its limitations. Understanding this we will try to overcome these limitations to produce a better working model of the computational microscope on a cellphone.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Department:
- College of Science
- Creator:
- Bañuelos, Stephanie
- Description:
- The effects of sexual coercion on the person and their self-esteem are critical to research. This study is intended to increase the understanding of how culture may play a part in maintaining sexual scripts and how they in turn affect those who have been victimized. Understanding the impact of sexual violence on women is significant for recovery and coping as well as for prevention programs. Studies show that females who have reported rape express lower levels of self-esteem, however the studies in the literature have consisted of predominantly white women. Although the data is critical to collect it cannot be generalized to all women, especially women of color. Due to the lack of literature surrounding sexual coercion and the effect on ethnic minorities, the purpose of this study is to explore the effects of sexual coercion on the well being of Latina college students to understand the cultural implications of sexual assault. In this study 144 self-identified Latina female undergraduate students from the Cal Poly Pomona campus partook in a series of published questionnaires on an online system. An independent samples t-test showed there was a slight decrease in self-esteem levels from victims of sexual coercion to those that were not. Correlational analysis presented a couple of positive relationships among the prevalence of sexual violence victim groups.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Department:
- Department of Psychology and Sociology
- Creator:
- Bush, Karsten, Butterfly, Joseph, Huerta Guerrero, Ana, Singh, Harjot, Carter, Je'don, Gatley, Andrew, Tse, Jacquelyn, and Gallardo, Berlyn
- Description:
- New discoveries in the current sustainability movement are resulting in products which support environmental responsibility in ways that were never previously imagined. However, in a world where technology has created a fast-paced lifestyle, part of the weight of this movement involves enabling consumers to achieve this Eco trend through convenient methods. The eco Dish Rack product focused on providing a convenient eco-friendly product by allowing consumers the ability to neatly store clean dishware and repurpose the water which drains off of them to grow a plant of their choice. Our market research focused on interviewing students, faculty, and the local city population to help measure decisions for environmentally friendly products, price sensitivity, environmental consciousness, and use of a dish rack. The hypothesis was that creating an eco-friendly product that would conveniently repurpose water would achieve a simple eco-friendly method in an everyday activity such as washing dishes. The results opposed our hypothesis by showing that many interviewees were under the impression that the product completely solves the issues surrounding water waste when we were offering a simplified way to repurpose water. The research showed that the need that we addressed for the product is seen as important and the product itself is a valued idea, but skepticism keeps others from seeing it as an impactful solution for water conservation. Shifting focus on the convenience of the product and designing with the environment in mind rather than focusing on water conservation is the appropriate next step.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Creator:
- Mejia, Jose
- Description:
- This case study is a proposal for an urban vertical farm as a social enterprise, in Pomona, Los Angeles County, California. The goal of the study is to create a detailed and focused plan on how to start and maintain a successful social enterprise. The approach takes the two most common types of urban agriculture and combines them into a hybrid organization. A community garden (nonprofit) model it’s combined with a vertical farms (for-profit) model, creating a hybrid model (Kaufman, 2000). Utilizing the strength and minimizing weaknesses, it is projected to lead to the formation of an economically sustainable and socially conscious enterprise. The opportunity for innovation lies on the fact that both current models have challenges. Part of the study focuses on the reasons why to establish a social enterprise model in an urban setting. A full business plan is also provided to expand the possibilities of the model and it also includes strategies on how to target intended markets. Using case studies, a financial analysis provides information on the break-even point and the required financial goals. Financial analysis also includes the first six years balance sheet, providing necessary data to determine ROI Return on investment. It analyzes social challenges: lack of jobs, good food; affordability, availability, education and community involvement. The study is intended to be a tool for investors, entrepreneurs, city planners and residents researching the possibilities of a vertical farm as a business and/or a social benefit or a combination of the two. The study evaluates and analyzes potential strategies proven to have worked in other studies and real-life models.
- Resource Type:
- Thesis
- Campus Tesim:
- Pomona
- Department:
- John T. Lyle Center for Regenerative Studies
- Creator:
- Kim, Max
- Description:
- The purpose of this paper is to visualize and find important trendy patterns in a dataset that contains house sale prices and their features for King County in Washington between May 2014 and May 2015, which was obtained from Kaggle, a website that shares datasets for data science and machine learning. Visualizing and finding the patterns in this dataset gives us more insight about the real estate business, such as the type of homes that are preferred in inexpensive neighborhoods versus expensive neighborhoods and many factors that are affecting the price of a home in King County. The visualization was performed on Apache Hadoop, a platform distributed storage and processing big data on a cluster of computers. Through visualization, we revealed many important features associated with house sale prices in King County.
- Resource Type:
- Graduate Project
- Campus Tesim:
- Pomona
- Department:
- Department of Computer Science
- Creator:
- Bromley, Barbara E.
- Description:
- This article explores issues of public reactions often encountered by personswith disabilities. A recent trip to Disneyland provides an opportunity to experience as well as reflect on interactions between those with and without disabilities.
- Resource Type:
- Article
- Campus Tesim:
- Pomona
- Creator:
- Kunath, Debbie A.
- Description:
- The purpose of this investigation is to identify the source(s) of salinity and water, which contribute to the north flowing streams of Towsley and Wiley canyons of Newhall, California. The waters are being assessed through geochemical analyses to determine if they contribute to the high chloride content of groundwater in the southern part of the Santa Clara River East Groundwater Basin of the Santa Clarita Valley. To date, a combined total of 30 springs and natural oil/tar seeps have been identified through geologic mapping of the study area. Thrust faulting and contacts of steeply dipping Miocene formations appear to control the migratory paths of fluid flow. Most of the water and oil discharging from the natural oil/tar seeps and proximate springs flows naturally toward or into the streams that line the canyons of this local park in Los Angeles County. Oil, oil sheen in the streams, and rotten egg odors are commonly observed and present a potential impact to water resources of the basin. The waters discharging from these sources were evaluated by testing pH, dissolved oxygen, electrical conductivity, and elemental composition. Preliminary salinity testing of these waters had results of total dissolved solids (TDS) ranging from 900 to 5300 mg/L and chloride values in excess of 8000 ppm which far exceeds the Environmental Protection Agency's (EPA) National Secondary and Primary Drinking Water Standards.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Department:
- Geology
- Creator:
- Atkinson, Merilee
- Description:
- This study investigated the park use patterns and aesthetic preferences of park users in Snow Creek Park, Walnut, California. The objective was to discover whether there were connections between park typology conceptualization and recreational and home landscape aesthetic preferences, and the impact of those preferences, both conscious and unconscious, on park use. Studies on recreational use of natural environments, changes in park typologies, and landscape aesthetics, perception, and preference informed this study. Data was collected and analyzed through interpretation of historical aerial photos to track landscape change over time; behavioral observation and mapping to understand the variety of Snow Creek Park user activities; and questionnaires to understand Snow Creek Park users’ attitudes and behaviors in parks and in home environments. Descriptive statistics report quantitative data from the research. Inductive analysis of qualitative data resulted in the emergence of three major themes: the importance of experiential factors in the park experience; the range of aesthetic preferences in park and home landscapes; and respondents’ preferences and perceptions of sustainability in the landscape. Results indicated that park users in this study valued a wide variety of outdoor experiences in parks and at home and that their experiential needs influenced aesthetic preferences for both public and private settings. This study demonstrated that there was a complex interaction of factors affecting landscape preferences and practices that acted as barriers to adopting more sustainable home landscape types.
- Resource Type:
- Thesis
- Campus Tesim:
- Pomona
- Department:
- Landscape Architecture Department
- Creator:
- Alkhazl, Fatimah
- Description:
- Using animation in teaching has become more popular in the twenty-first century in universities and education organizations. It makes understanding the challenging concepts much easier than using the traditional methods to explain them. One of the most significant concepts in computer science is algorithm and it is considered a challenging topic for many CS students. It is considered the core of computer science courses and any field in computer science requires excellent understanding of the basic algorithms. Much research has proven that supporting the traditional way of teaching algorithm curriculum with visualization using both animation and web game motivates students to increase their knowledge about algorithms and learn more during any algorithm course and after it. In this project, we have developed interactive educational web games using JavaScript to graphically illustrate couples of CPU scheduling algorithms for a single CPU. Players have the ability to drag and drop the processes in the processor timeline. Then, the game will graphically show the status for each process if it is in execution status represented by green rectangles or waiting status represented by yellow rectangles. Once the player finishes dragging and dropping all the ready processes in the processor timeline, he will ask to enter the value of waiting time for each process and calculate the average waiting time. Also, the educational games will display hints if the player made any mistake or the player can click on the show solution button to see the animation explain the algorithms step by step automatically. The proposed educational web games encourage students’ interaction and help them to learn the theory of CPU scheduling algorithms in a fun framework.
- Resource Type:
- Graduate Project
- Campus Tesim:
- Pomona
- Department:
- Computer Science
- Creator:
- Hakamian, Khashayar
- Description:
- With the ever-growing demand of energy to power homes, businesses and intuitions, power plants are placed in increasingly difficult situations of predicting energy consumption and balancing power output. Peak hour energy can cost up to twice as much as energy generated during non-peak hours. With alternative solutions needed, the High Temperature Hybrid Compressed Air Energy Storage (HTH-CAES) system can be used to counter costly energy generation during peak hours. The HTH-CAES system converts electrical energy during non-peak hours into a combination of storable form of intermediary energy (compressed air and thermal energy). Part of the electrical energy is converted to heat using resistive wires in a High Temperature Thermal Energy Storage (HTES). During the discharge cycle, the compressed air is released to be passed through the charged HTES. The thermal energy is transferred to the passing air and sent to a turbine to generate power back to the grid. The HTES is a solid state system that utilizes high temperature concrete as the storage medium. For system output optimization, the HTES is studied computationally through a transient Finite Volume Method by a commercial CFD package (ANSYS FLUENT). The computational model is validated by comparing theoretical calculations to energy output and grid-refinement study. The objectives of this study is to optimize the configuration of resistive heaters to prevent overheating, achieve temperature uniformity, ensure heated air is at desired temperature and ensure heat losses are manageable. In the next phase, computational fluid dynamics (CFD) was implemented to verify the heat transfer performance during discharge cycle. CFD results with all objectives achieved with 0.4 kg/s and 0.6 kg/s as successful mass flow rates for operation.
- Resource Type:
- Thesis
- Campus Tesim:
- Pomona
- Department:
- Mechanical Engineering
- Creator:
- Morris, Blake, Wang, Jason, Logier, Jared, and Villalpando, Obed
- Description:
- Concentrating (or concentrated) solar power (CSP) is a method of tapping plentifully available solar energy that offers grid flexibility over photovoltaic generation. Molten salts have emerged as viable candidates for thermal energy storage in CSP. Chloride salts have many advantages such as their economic availability and their stability to temperatures around 1100°C which opens up the possibility for higher power generation efficiency. However, molten chlorides are known corrosives; therefore, proper materials selection for plant hardware is important. Nickel-based superalloys are good candidates as construction materials. However, while superalloys provide the needed corrosion resistance, they are cost prohibitive for constructing industrial scale solar power plants. Due to this restriction, many existing solar power plants use stainless steels because of the combination of low cost and appropriate mechanical properties and corrosion resistance. In this research project, two different stainless steels (UNS S30400 and UNS S31600) and a carbon steel, i.e., UNS G10180, were tested at 450, 550, & 700°C under a NaCl-KCl-MgCl₂ salt eutectic. DC electrochemical techniques were utilized to characterize the corrosion behavior of these steels. The morphology of attack was determined using optical and scanning electron microscopy coupled with energy dispersive spectroscopy (EDS). X-ray diffraction was used to characterize the corrosion products formed on the surface of the substrate. Based on these results, inferences were drawn on the corrosion resistance of these particular alloys.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Creator:
- Hetrick, Lindsay, Lin, Yu-Huey, and Liu, Junjun
- Description:
- The use of pesticides has a negative impact on the environment. Amphibians have long been regarded as indica- tor species to pollutants due to their permeable skin and sensitivity to the environment. Studies have shown that population declines of some amphibians are directly linked with exposure to agricultural contaminants. In the past, much of the studies have focused on the toxic effect of contaminants on larvae (tadpoles), juvenile and adult frogs. However, due to the nature of their life cycle, amphibian eggs and early embryos are especially sus- ceptible to the contaminants, and any alteration during the early reproductive stagesmay have a profound effect on the health and population of amphibians. In this study, we analyzed the effect of atrazine andmalathion, two commonly used pesticides, on Xenopus laevis oocyte maturation and early embryogenesis.We found that both atrazine andmalathion shortened the frog oocyte maturation process and resulted in reduced Emi2 levels at cy- tostatic factor-mediatedmetaphase arrest, and a high level of Emi2 is critically important for oocyte maturation. Furthermore, frog embryos fertilized under the influence of atrazine and/ormalathion displayed a higher rate of abnormal division that eventually led to embryo death during early embryogenesis.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Creator:
- Feng, Chongyi
- Description:
- This is an analysis of a moral and ideological dilemma facing the Chinese authority, with a focus on its shifting position on so-called “particularity of China”. Originally the Chinese communists were Universalists who rejected their various rivals’ arguments about Chinese "particular national conditions" in order to justify their belief in and application of Marxism in China. In those revolutionary years there was genuine rigor in their intellectual exploration, in spite of Marxist-Leninist dogmatism. The recent embracement of the concept of "Chinese characteristics" and attacks on the “universal values”, however, seem to indicate that the universalist position has been abandoned altogether to justify the current political system in a special manner. It remains to be seen whether this effort will succeed in establishing an enduring political ideology for a “rising China” or otherwise quickly vanish into oblivion just as countless ideological catchphrases before it.
- Resource Type:
- Article
- Campus Tesim:
- Pomona
- Creator:
- Mair, Amber
- Description:
- This project was an interactive online tutorial intended for parents to learn how to help their first grade students in learning spelling patterns. This tutorial would help parents by building a better understanding of what blending and segmenting are and how to use these strategies to help a child learn various spelling patterns. It had video clips, audio clips, images, and quizzes integrated with text to maximize the interest and understanding of the content being delivered. Spelling is an essential part of reading and writing, but due to the complexity of the English language, students need to have and use a variety of skills. Parent involvement has also proven to have a large impact on a child’s academic success, so it is essential that parents know how to adequately help their child at home (Darling & Westberg, 2004). The literature review provided a closer look at what the California Common Core Standards are for first grade in regards to reading, writing, and spelling. Also, a closer look at the standards revealed that the rigor and high-order skills that are being asked of young children, are very different than the ones required in years past (CDE, 2013). The literature also covered the importance of language awareness and its role in reading and spelling abilities (Critten, Sheriston, & Mann, 2016). The literature review has also provided information of best practices for teaching reading and spelling at primary grades (Roskos & Neuman, 2014; Simonsen & Gunter, 2001). Lastly, the literature examines the positive effects of the flipped classroom model on students at various levels of their education (Camiling, 2017; Bergmann & Sams, 2007; Sohrabi & Iraj, 2015; Gough et al., 2017). The target audience of this project was primarily parents of first grade students; however, parents of children at any primary grade could easily use it. The online tutorial was carefully designed to provide clear information and opportunities for parents to practice blending and segmenting with spelling patterns with their children, while keeping in mind many parents may not have any background knowledge of the content. This online tutorial was created according to the A.D.D.I.E model of instructional design, following five distinct development phases. The instructional designer decided to create an online tutorial to utilize a variety of multimedia in order to enhance the learning and engagement of the parents. The tutorial then underwent troubleshooting. It was created using Articulate Storyline 2 authoring program and tested on multiple platforms and various browsers. After completing two rounds of testing, the tutorial was warranted to be accessible on various types of devices and browsers with all of the multimedia components functioning correctly. Upon completion of troubleshooting, the project was submitted to Cal Poly Pomona Institutional Review Board (IRB), where it was approved for field-testing with first grade parents. The instructional designer then sent the consent letter to parents for field-testing. Parents had two weeks to view and provide feedback on the tutorial. One hundred first grade parents were invited to participate in the study. Twenty-one parents accepted the invitation and participated in the study. Through an online anonymous survey, 100% of the participants felt the online tutorial was beneficial and helped them in supporting their child’s learning of spelling patterns. Overall, the results were extremely positive. The main weaknesses identified by parents were a lack of practice questions for parents to self-check their knowledge and understanding of blending and segmenting and also the desire for more teacher and student modeling videos. Even though, the sample size was small and only allocated to one elementary school, the online tutorial showed to have a positive impact on parents’ confidence level in helping their child with spelling patterns.
- Resource Type:
- Graduate Project
- Campus Tesim:
- Pomona
- Department:
- Department of Education
36. Citing in text
- Creator:
- Karayan, John E.
- Description:
- Citing in text
- Resource Type:
- Article
- Campus Tesim:
- Pomona
- Creator:
- Estrada, Kristine
- Description:
- Compilation of pavement data can improve the current pavement design methods to ultimately increase the longevity of pavement lifespan and minimize costs for needed maintenance. The research of this project will focus on analyzing data compiled on LTPP InfoPave, a database application program produced by the Long-Term Pavement Performance (LTPP) Program and managed by the Federal Highway Administration (FHWA). Pavement data of various road test sections located in California will be analyzed to correlate the existing pavement information with methods to improve pavement design. The data in focus includes: 1) pavement structure, 2) material composition, 3) pavement age, 4) traffic loading, 5) climate, and 6) monitored performance data. By extracting the mentioned dataset from section summary reports and utilizing analytical tools available from LTPP InfoPave, patterns pertinent to the current pavement structure will be evaluated to establish a correlation with pavement performance. In the future the data analysis will provide improvements by reducing costs of repairs, and mitigating attention to efficient pavement design methods.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Creator:
- Ahadiat, Nas
- Description:
- A number of professional organizations have called on accounting faculty to use technology in their courses. Given the range of technologies available, the purpose of this study is to determine what technologies have widespread applications among accounting educators. In addition, the study investigates whether differences exist among educators in their choices of technology and the extent to which they use it. The information presented in this article also can be used by administrators to develop an effective policy designed to ensure broad participation of faculty in the integration of technology into the university curriculum.
- Resource Type:
- Article
- Campus Tesim:
- Pomona
- Creator:
- Tulig, Melissa
- Description:
- Mimulus section Diplacus consists of erect or prostrate shrubs found throughout California in many habitats. Taxonomy of the group has been controversial, including its separation as a separate genus. Recent treatments describe as many as fourteen species or as few as two. Taxonomic boundaries between species and subspecies are obscured by hybridization, especially in southern California where there is overlap in the distributions of many taxa. Measurements of twenty-one floral and vegetative characters were made from samples of all taxa throughout the range of the section to delineate morphological gaps. Principal component analysis and discriminant function analysis show a clear separation between species based on variation in the morphology of corolla, calyx, and pedicel features. Hybrid populations are variable in floral features and show an intermediacy between their putative parents. Although hybrids are problematic for the taxonomy of the group, they appear to be geographically limited and confined to disturbed areas. Recognition of taxa within the section is crucial for its conservation, as several species are regarded as sensitive.
- Resource Type:
- Masters Thesis
- Campus Tesim:
- Pomona
- Department:
- Biological Sciences
- Creator:
- Osuna, Cezar
- Description:
- Outer membrane vesicles are spherical structures that are constitutively produced by all Gram negative bacteria. They range from 10-300 nm in diameter and have been shown to be an alternative transport system for secreting proteins into the extracellular space. Outer membrane vesicles are monoluminal and are composed of proteins, DNA, phospholipids and lipopolysaccharides. Although their exact function remains unclear, it has been proposed that they play a role in pathogenicity as well as cell signaling between bacteria. The probiotic bacterium, E. coli Nissle 1917 (EcN), has been observed to produce outer membrane vesicles. EcN is currently being marketed under the brand Mutaflor® in order to alleviate gastrointestinal ailments such as ulcerative colitis and irritable bowel syndrome. Recently, the full genome of EcN has been sequenced and has been found to have high homology with Uropathogenic E. coli strain CFT073 (UPEC). UPEC is the leading cause of urinary tract infections in humans and has the potential to cause renal failure when left untreated. UPEC is slowly building antibiotic resistance which is why researchers are exploring the option of vaccine development. Both microbes have been observed to produce autotransporter proteins as well as outer membrane vesicles. This study aims to characterize outer membrane vesicles of EcN in comparison to the outer membrane vesicles of its closest genetic relative, uropathogenic E.coli strain CFT073 by studying their physical properties, their protein composition, and their roles in biofilm formation.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Creator:
- Kira, Fumiakia
- Description:
- The work of the Japanese classical scholar Nakashima Hirotari, who came to prominence in Nagasaki in the latter half of the Edo period, was preserved in memory—thanks, in part, to the series of discourses written by Yatomi Hamao, a pre-war scholar of Japanese literature. In particular, Hamao’s work “Foreign Matter Appearing in the Songs of Hirotari” (Journal of Kokugakuin University v. 28 n. 10, October 1922) showed that Hirotari, together with Oranda Tsuji—a Japanese interpreter of Dutch language and Hirotari’s student—translated the poetry of the German poet Matthias Claudius in composing the long poem “Yayohinouta” and drew the academic world’s attention as a pioneer in translating Western poetry. The book The Nakashima Hirotari Collection (Ookayama Shoten, 1933), authored by Yokoyama Shigeru and edited by Yatomi Hamao, collected Hirotari’s central works. Yatomi also wrote a biography, Nakashima Hirotari (Koseikaku, 1944). The progress of research on Hirotari before the war was remarkable.
- Resource Type:
- Article
- Campus Tesim:
- Pomona
- Creator:
- Fernandez, Franz
- Description:
- Since the detection of the invasive species Asian Citrus Psyllid (ACP), Diaphorina citri Kuwayama (Hemiptera: Liviidae)—vector of the lethal citrus disease Huanglongbing (HLB) Candidatus Liberibacter asiaticus—in San Diego County in 2008, efforts have been made by the California Department of Food and Agriculture (CDFA) to help keep the psyllid population under control in California. All citrus and closely related species are susceptible to both ACP and HLB and are subjected to death once infected as there is currently no known cure against the disease. Insecticides are often used to help suppress ACP population, although it has been reported in multiple studies that ACP may develop resistance to them over time. As an alternative to chemicals, bioacoustics have been explored as a novel method of pest management against other invasive insects. The development of open-source hardware platforms such as a Raspberry Pi and Arduino have been utilized as components in the creation of new trapping mechanisms, in part, due to their affordability and portable use. In this study, a bioacoustic prototype involving a pre-recorded ACP mating call and a Raspberry Pi 3 microcontroller was designed to attract adult male and female psyllids in both a greenhouse and field setting on the campus of California State Polytechnic University, Pomona in Pomona, CA. The greenhouse study was conducted in three-time durations (24-hrs., 48- hrs., and 72-hrs.), with the 48-hr time duration exhibited the highest number of total ACP captured. No significant differences were found between control and sound traps among field studies at all locations studied. Future studies could focus on bioacoustic technology to improve trapping efficiency of ACP.
- Resource Type:
- Thesis
- Campus Tesim:
- Pomona
- Department:
- Department of Plant Sciences
- Creator:
- Garcia, Maria
- Description:
- Due to the scarcity and increasing demand for bandwidth, Orthogonal Frequency Division Multiplexing, also known as OFDM has become a great candidate as a transmission scheme capable of supporting high data rate applications such as LTE, 4G, and 5G communication systems as well as recent technological advances such as 5G machine type communication systems (MTC) with high efficiency. OFDM offers better immunity against frequency selective fading channels and reputes combating multipath fading effectively. Channel estimation is fundamentally tasked in OFDM due to the absence of channel knowledge at the receiver, thus it is imperative to have coherent detection at the receiver. This fundamental task becomes more of a challenge with the existence of interference but is accomplished with the use of the least squares estimation (LSE) in conjunction with the expectation maximization (EM) algorithm, and the use of known pilot sub-carrier insertion in the OFDM frame. This thesis aims to utilize channel estimation using MAP-EM iterative receiver, LSE, to analyze SNR (db) at different EM iterations, multipath tap values, number of pilot insertion, and different number of antennas to explore system configuration for better throughput and analyze system performance and complexity trade-off at such parameters. This paper also evaluates feasibility of applying Massive MIMO to 5G Massive Machine-to-Machine Type Communications (MMTC).
- Resource Type:
- Thesis
- Campus Tesim:
- Pomona
- Department:
- Department of Electrical and Computer Engineering
- Creator:
- Switzer, Mary Kay
- Description:
- There is much speculation on the long-range effects of the O.J. Simpson trial which is already rewriting the rules in nearly every area of the American legal system. In our democracy a primary concern is the citizen’s right to know; a right which must include access to our courts. This article examines the broadcaster’s role as guardian of the public interest as established by case law. It views the impact of the O.J. Simpson case on the legal system and public access within the historical context of television access to the courtroom.
- Resource Type:
- Article
- Campus Tesim:
- Pomona
- Creator:
- De Leon, Marina, Piovia-Scott, Jonah, and Vredenburg, Vance
- Description:
- The pathogenic fungus Batrachochytrium dendrobatidis (Bd) has been associated with global amphibian declines, but it is often difficult to discern the relative importance of Bd as a causal agent in declines that have already occurred. The recent development of retrospective analyses of museum specimens has allowed researchers to associate the timing of Bd arrival with the timing of past amphibian declines. Cascades frogs (Rana cascadae) have experienced dramatic declines in northern California, but it is not clear whether the onset of these declines corresponds to the arrival of Bd. We used quantitative real-time PCR assays of samples collected from museum specimens to determine historical Bd prevalence in the northern California range of R. cascadae. We detected Bd in 13 of 355 (3.7%) R. cascadae specimens collected between 1907 and 2003, with the first positive result from 1978. A Bayesian analysis suggested that Bd arrived in the region between 1973 and 1978, which corresponds well with the first observations of declines in the 1980s.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Creator:
- Forward, Keith M., Murray, DaJohn, Olarte, Sebastian, and Gattenby, Carson
- Resource Type:
- Report
- Campus Tesim:
- Pomona
- Creator:
- Gomez, Lauren, Armstead, Moriya, Jasien, Emily, and Beck, Weston D.
- Description:
- The Mathematical Modeling of the spread of HIV and AIDS has a well-established literature base, however the vast majority of the methods employed are purely deterministic. Very few stochastic models are available to complement the theory. Based upon Gani & Swift (2009) and an unpublished work of Gani, Stals and Swift, this research group will develop both deterministic and stochastic models for the spread of HIV and AIDS. This project is multi-layered and very broad - from base-line analysis (both deterministic & stochastic), numerical considerations, to actual data analysis.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Department:
- Applied Mathematics
- Creator:
- Ding, Zijiang
- Description:
- The human dilemma of love versus hatred has existed throughout development of both Western and Eastern civilization. “Love” is a central concept, a basic ideal and an important practice in Eastern culture. It is a loose term, however, and troubles researchers not only because of its wide range in everyday usage, but also because it is one of those words charged with emotional content. Any systematic examination of love in Eastern civilization would have to take into account the way cultural differentiation has been moved by the complex associations of interpretation, explanation, conceptualization, and theorization of love. For this purpose, this article examines the Eastern concept of love through the following five spiritual sources: Hinduism, Buddhism, Daoism, Confucianism, and Moism.
- Resource Type:
- Article
- Campus Tesim:
- Pomona
- Creator:
- Nunez, Desiree, Bonilla, Tomas, Nguyen, Emmy, Pham, Tu, Leal, Brian, Paredes, Alex, Nguyen, Thu, and Rivas, Jesus
- Description:
- Surface modification using nanoparticles is an effective and useful way to improve powder properties that may be used in different industries. The study conducted used a magnetically assisted impaction coating machine (MAIC) to coat samples. The Samples were then tested for improved characteristics.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona
- Department:
- College of Engineering
50. Memory Retrieval
- Creator:
- Capristo, Livier and Manriquez, Tatiana
- Description:
- The ability to encode and retrieve memories of for events or Episodic long-term memory (LTM) is a wholly complex, but fundamentally important capacity. LTM retrieval is supported by a network of brain regions, most notably, the hippocampus and medial temporal cortical regions. There has a been a wealth of human neuroimaging studies investigating the role of these regions as well as others including the lateral prefrontal cortex, in LTM retrieval. However, there is less known about how these regions that are important for memory functionally interact during different LTM retrieval conditions. In the present study, we investigate the functional interactions within this network using a meta-analytic and graph-theoretical approach (meta-analytic functional connectivity mapping). We gathered and annotated the results from 72 neuroimaging studies investigating different LTM retrieval conditions. From these results, we will derive network models quantifying the co-activation strength amongst regions during LTM retrieval. We expect medial temporal lobe and lateral prefrontal regions to act as hub nodes, playing a central role communication in the network. We believe our findings will be an important compliment to the established body of research implicating the medial temporal and frontal lobes in LTM.
- Resource Type:
- Student Research
- Campus Tesim:
- Pomona