Digital Commons Network^™

Assessment Of The Potential Environmental And Ecological Risks Associated With Traffic Induced Heavy Metal Contamination In Country Parks Of Hong Kong, King Wah Ngai, Ming-Wai Mak, Kwok Leung Pun

Department of Construction, Environment and Engineering

Hong Kong is a densely populated area with a limited area, so most country parks are adjacent to busy traffic roads and town activities. The soil in country parks may be contaminated by heavy metals emitted by traffic activities. During the holidays, most people go to country parks to play. It is very important to assess the potential risks of residents, especially children. So far, data on pollution in Hong Kong’s country parks is very limited. The heavy metals arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), lead (Pb), mercury (Hg), nickel (Ni), silver (Ag) and zinc (Zn) were collected …

Pericardial Fluid Proteomic Label-Free Quantification Of Differentially Expressed Proteins In Ischemic Heart Disease Patients With Systolic Dysfunction By Nano-Lc-Esi-Ms/Ms Analysis, Junaid Ullah, Satwat Hashmi, Arslan Ali, Faisal Khan, Shahid Ahmed Sami, Nageeb Basir, Syedah Saira Bokhari, Hasanat Sharif, Hesham R. El-Seedi, Syed Ghulam Musharraf

Department of Biological & Biomedical Sciences

Left ventricular systolic dysfunction (LVSD) is common in patients with pre-existing ischemic heart disease (IHD) and myocardial infarction. An untargeted proteomic approach is used to improve the understanding of the molecular mechanisms associated with LVSD and to find out potential proteomic signatures in pericardial fluid. The pericardial fluid of IHD (n = 45) patients was grouped into two categories according to the left ventricular ejection fraction, LVEF ≥45 (n = 33) and LVEF <45 (n = 12), and analyzed by using nano-liquid chromatography–mass spectrometry (nano-LC-MS/MS) technique. The nano-LC-MS/MS analysis resulted in the identification of 709 pericardial fluid (PF) proteins …

The Feasibility Of Assessing Infants’ Social Evaluations Using Within-Subject Repeated Measures In A Virtual Format, Samantha Crooks

University of the Pacific Theses and Dissertations

Foundational research on infant social evaluations (e.g., Hamlin et al., 2007; Hamlin et al., 2011; Hamlin & Wynn, 2011) has been cited over 2,500 times and infant researchers suggest these data show infants have an unlearned preference for prosocial others. However, several failed replications have been published, which might be attributable to the type of research methods used to investigate this question. A single measure of the dependent variable is ubiquitous among these studies; within-subject repeated measures are rarely used. In the current study, we adapted methods used by Hamlin and Wynn (2011) to a video-only format, due to COVID-19 …

Beware Of Strangers Bearing Gifts, Anthony J. Sebok

Articles

No abstract provided.

Re-Imagining “Spaces” For Relating Within And Between France And Germany In The Long Nineteenth Century, Debra Gusnard

Arts & Sciences Graduate Student Theses and Dissertations

The “modern world” as we now know it is quite different from that which was emerging in Western Europe and began to accelerate in its development under the impetus of revolution and wars at the turn of the nineteenth century. Not only were material conditions in the process of shifting from those grounded in more traditional, rural and agrarian ways of life to those developing into more urban and industrialized ones, but the “social ontology” and cultural forms of “mapping” and communicating about reality were also changing. This study employs a “macro-historical” framework which incorporates complexity and complex system principles …

Who Is Bisexual? Perceptions Of Sexual Orientations Under Ambiguity, Megan E. Wilson

Arts & Sciences Graduate Student Theses and Dissertations

How do people determine another individual’s sexual orientation? As sexuality often does not have visible cues, people must often rely on how others identify and behave. However, sexual identity and behavior can often conflict (Pathela et al., 2006; Ross et al., 2003). In Study 1, I examined whether participants perceived individuals to be straight, gay, or bisexual when identity and behavior conflicted (e.g., a man who identifies as “straight” but had sex with other men). Study 2 examined how perceptions were affected by the characteristics of the target and their behavior and Study 3 examined how perception was related to …

Knowledge, Attitude And Perception Of People Towards The Novel Coronavirus Disease (Covid-19) Outbreak And Its Effects On Their Livelihoods: Perspectives From Diverse Populations, James Adefisoye

All Publications

Background: People’s behavior and compliance with COVID-19 control measures is associated with their knowledge, attitude and perceptions (KAP). To this end, we investigated the KAP among people from diverse populations towards the COVID-19 pandemic. We also examined the impact of the outbreak on their livelihoods.

Methods: A cross sectional study with the adoption of a 31-item questionnaire divided into five sections namely demographics, knowledge, attitudes, perception and effect on livelihood. Six countries were considered with Australia, United Kingdom and USA in developed countries category; India, Nigeria and South Africa were considered in developing countries category. Reponses were compared by development …

Determining Optimal Resistance Loads During Exercise In Male And Female College Students, Alexia Amo

University of the Pacific Theses and Dissertations

Exercise is a crucial component in obtaining proper health and fitness objectives in young adulthood. Determination of an optimal resistance load for men and women may aid in physiological function and reduce the likelihood of injury. We tested 32 physically active men (n=14) and women (n=18) between ages 18-25 on Proteus Motion, USA. Proteus applies continuous three-dimensional magnetic resistance loads during exercise. Testing consisted of 2 repetitions of horizontal and vertical push and pull exercises comparing performance of the dominant and non-dominant arm. Each exercise was performed with a resistance of 7lb, 14lb, 21lb, and 28lb for a total of …

Molecular Responses To Catastrophic Molting In A Wild Marine Mammal, Anna Keith

University of the Pacific Theses and Dissertations

While most mammals shed their hair and skin either continuously or seasonally, northern elephant seals (Mirounga angustirostris) undergo an annual catastrophic molt, in which they shed their entire fur and underlying skin layer in the span of just three weeks. Due to the energetic and thermoregulatory constraints of molting and the large distances between their coastal rookeries and foraging grounds, elephant seals must remain on land and fast for the duration of their molt. Previous studies of molting northern elephant seals have examined endocrine and metabolic adjustments to fasting, but not the molecular processes underlying molting. We examined changes in …

Teacher Perceptions Of The Role Of Social Robots As Teaching Assistants In The Online Teaching Of Students With Autism Spectrum Disorder, Richard Hutley

University of the Pacific Theses and Dissertations

Students with autism spectrum disorder (ASD) are the fastest-growing group of children with special education needs. ASD affects individuals from all walks of life, regardless of race, ethnicity, educational levels of family members, or socio-economic backgrounds. People on the autism spectrum have difficulty communicating and establishing socio-emotional connections with other human beings, making teaching those with ASD challenging for their human teachers.Most research in the field of autism has focused on the clinical aspects of the condition and on the individuals who are on the spectrum. However, research into the perception of the teachers charged with educating ASD students is …

Bayesian-Derived Vancomycin Auc24h Threshold For Nephrotoxicity In Special Populations, Dan Ho

University of the Pacific Theses and Dissertations

A Bayesian-derived 24-hour area under the concentration-time curve over minimum inhibitory concentration from broth microdilution (AUC24h/MICBMD) ratio of 400 to 600 is recommended as the new monitoring parameter for vancomycin to optimize efficacy and minimize nephrotoxicity. The AUC24h threshold of 600 mg*h/L for nephrotoxicity was extrapolated from studies that assessed the general population. It is unclear if this upper threshold is consistent or varies when used in special populations such as critically ill patients, obese patients, patients with preexisting renal disease, and patients on concomitant nephrotoxins.The purpose of this study is to investigate the generalizability of the proposed vancomycin AUC24h …

Teaching Study Skills To College Students Using Checklist Training, Sarah T. Kong

University of the Pacific Theses and Dissertations

Deficits in the study skills of college students can lead to lower academic performance and disqualification. Although behavior analytic research has evaluated methods for teaching, structuring in-class notes, increasing attendance, and improving participation, no studies have evaluated methods for improving independent studying outside of the classroom using a single-case design. We evaluated the effects of a study skills training package using a multiple probe design across skills with college students. Sessions took place in a room arranged to emulate the typical study space found in a dorm or library. During sessions, participants were given a 3–6 page reading from a …

Memory Strategy Instruction With Goal-Setting And Positive Feedback: Impact On Memory, Strategy Use, And Task Commitment, Mercedes E. Ball

University of the Pacific Theses and Dissertations

Strategy instruction can improve memory performance, but some training programs are more effective than others. Some scholars propose that a key element to boosting the benefits from training programs is enhancing or emphasizing self-regulatory factors, such as knowledge about memory, beliefs about ability, or motivational factors. Research supporting this claim evidence adds that programs that enhance trainees’ confidence in their abilities improve memory performance and that multifactorial programs are more effective than strategy-training-only programs. Setting performance goals and receiving feedback are two self-regulatory factors known to relate to memory performance that may sometimes be included in some training programs. However, …

Community Gardens: Giving Hope To Southeast Asian Refugees, Yua Thao

University of the Pacific Theses and Dissertations

Since 1975, over 1.3 million Southeast Asian refugees have resettled in the United States from the Southeast Asian nations of Cambodia, Laos, and Vietnam (Office of Refugee Resettlement, 2014). Many Southeast Asian refugees fled their home countries after the Vietnam War to avoid political persecution. As a result of forced migration, Southeast Asian refugees experience high levels of psychological distress attributed to premigration trauma and postmigration. Stressors may include adjusting to a new culture, finding housing, establishing employment, financial hardship, learning a new language and the feeling of identity loss of their homeland. In considering these stressors, this study sought …

Clarifying Patterns In Host Plant Use By Adelpha Butterflies (Nymphalidae: Limenitidinae), Karina Torres

University of the Pacific Theses and Dissertations

The remarkable diversity of plant-feeding insects could be explained by the dynamics of their plant associations, where host plant shifts and specialization onto a small fraction of available plants may promote diversification. Neotropical Adelpha butterflies contain a large number of species, and previous work indicated the colonization of a novel host plant family (Rubiaceae) fueled its rapid diversification. However, accumulating host records indicate wide taxonomic host breadth at family level and below. Here, we categorize Adelpha diet breadth based on known host plant relationships across the Neotropics and from Costa Rica, Ecuador and Brazil. We also use a diet breadth …

Stress Resilience Development Of Undergraduate Student Leaders At Faith-Based Universities During The Covid-19 Pandemic: A Grounded Theory Study, David Heitman

University of the Pacific Theses and Dissertations

Undergraduate student leaders express increasing stress levels, often leaving them unprepared to lead in a complex world of challenge and change. While higher education heavily invests in preparing graduates to think critically and lead successfully, research shows an increasing number of students display low-stress resiliency and risk-aversion while struggling to cope with challenge and failure pre-and post-graduation. This study, conducted at faith-based Christian universities during the COVID-19 pandemic, used grounded theory to generate a generalizable leadership stress resilience model that explains: (a) Why and how undergraduate student leaders experience stress; (b)The influence of stress on student leaders at faith-based institutions; …

Investigating The Specificity Of Coiled-Coil Recognition, Melina Huey

University of the Pacific Theses and Dissertations

The bZIP transcription factors make up a family of long α-helical proteins that dimerize based on a pattern of hydrophobic residues and bind to DNA through a region of basic residues. Because binding specificity is a particular topic of interest, the dimerization interaction is attractive as a possible candidate to better understand protein quaternary structure. Use of the Knob-Socket (KS) model for determination of packing structure provides a novel approach to analyze protein-protein interactions. A KS analysis of the protein-protein interface provides unique insight into the specificity of the classical leucine zipper pseudo-7mer repeat. From an analysis of the KS …

Barrier To Girls' Education In The Liberian School System And How To Empower Them To Remain In School, Annetta Lahn Nyanama

All Electronic Theses and Dissertations

The purpose of this thesis was to identify barriers to girls’ education in the fifteen years war in the ravished and impoverished country of Liberia, West Africa. With similar circumstances in developing countries around the world, comparison research is also explored and is clear that the consistent education of girls is often challenging and undervalued compared to the perceived and actual contributions girls make in the home without formal education.

The Effects Of Inclusive Classrooms On Students With Disabilities And Effective Inclusive Classroom Strategies, Erin Rose Welter

All Electronic Theses and Dissertations

The purpose of this literature review was to research the effectiveness of inclusive classroom strategies pertaining to academic achievement and social/behavioral achievement in students with disabilities along with which inclusive classroom strategies were more effective. Twenty-five research studies based on inclusive classrooms were reviewed and summarized throughout this literature review. While there were studies that saw a positive impact on a student’s academic success after being in an inclusive setting, a majority of the studies used in this literature review found no correlation between students with disabilities being included in an inclusive classroom and their academic achievement. It can also …

Founding Monsters Tales, Maggie Colangelo, Bernard Means

Founding Monsters

The creative team behind the Founding Monsters comic book—Maggie Colangelo and Dr. Bernard K. Means—bring you Founding Monsters Tales. Founding Monsters Tales features all-new art by Maggie and explores and expands on themes in Founding Monsters. Meet again Moses Williams, an enslaved servant of the Peale family who not only helped reconstruct the first mastodon skeleton, but was an unheralded artist in his own right. Find out whether mastodons were meat eaters, and how they differed from mammoths. Learn whether Thomas Jefferson was correct in his interpretation of what he called “the great claw.” Discover what Jefferson thought …

Malware Classification Using Long Short-Term Memory Models, Dennis Dang, Fabio Di Troia, Mark Stamp

Faculty Research, Scholarly, and Creative Activity

Signature and anomaly based techniques are the quintessential approaches to malware detection. However, these techniques have become increasingly ineffective as malware has become more sophisticated and complex. Researchers have therefore turned to deep learning to construct better performing model. In this paper, we create four different long-short term memory (LSTM) based models and train each to classify malware samples from 20 families. Our features consist of opcodes extracted from malware executables. We employ techniques used in natural language processing (NLP), including word embedding and bidirection LSTMs (biLSTM), and we also use convolutional neural networks (CNN). We find that a model …

The Dialectic Of Presence And Interpretation In Everyday Aesthetics: Applying Heidegger And Gumbrecht To A Walk In One’S Neighborhood, Thomas Leddy

Faculty Research, Scholarly, and Creative Activity

Gumbrecht’s Heidegger-inspired book, Production of Presence, provides valuable tools for resolving issues in everyday aesthetics. Gumbrecht distinguishes between “presence cultures” and “interpretation cultures.” (Gumbrecht 2004) We live in an interpretation culture, and yet even in our culture there are presence effects. Gumbrecht understands aesthetic experience in terms of the idea of presence. His paradigms are great works of art and great athletic events, all of which take us away from the everyday. I argue that his theory can be adapted, ironically, to everyday aesthetics, in particular to the experience of taking a walk. Much of what we experience aesthetically while …

Noninvasive Genetic Sampling With A Bayesian Spatial Capture-Recapture Analysis To Estimate Abundance Of Roosevelt Elk (Cervus Canadensis Roosevelti), Makenzie Henk

Cal Poly Humboldt theses and projects

Determining abundance of Roosevelt elk (Cervus canadensis roosevelti) in central Humboldt County, California has presented a unique challenge to wildlife managers due to the dense forest habitat and the animals’ elusive behavior. As the elk population has increased, so has human-wildlife conflict, and wildlife agencies need efficient and repeatable methods for determining abundance to inform management decisions. Traditional monitoring methods such as helicopter surveys are ineffective due to low sighting probability and strong behavioral responses to the aircraft. They also often lead to biased sex ratios when the distribution of males and females varies across the landscape. Non-invasive …

Comparison Of Low-Cost Commercial Unpiloted Digital Aerial Photogrammetry To Airborne Laser Scanning Across Multiple Forest Types In California, James Edward Lamping

Cal Poly Humboldt theses and projects

Science-based forest management requires quantitative information about forest attributes traditionally collected via sampled field plots in a forest inventory program. Remote sensing tools, such as active three-dimensional (3D) Light Detection and Ranging (lidar), are increasingly utilized to supplement and even replace field-based forest inventories. However, lidar remains cost prohibitive for smaller areas and repeat measurement, often limiting its use to single acquisitions of large contiguous areas. Recent advancements in unpiloted aerial systems (UAS), digital aerial photogrammetry (DAP) and high precision global positioning systems (HPGPS) have the potential to provide low-cost time and place flexible 3D data to support forest inventory …

Using Uav And Traditional Remote Sensing Data To Detect Vegetation Vigor And Monitor Stream Morphology In A Desert Riparian Ecosystem, Jordan Bradley Adair

Cal Poly Humboldt theses and projects

Mono Lake is a terminal lake in the Eastern Sierra Nevada Mountains. The streams that feed Mono Lake support a unique desert riparian ecosystem. Rush Creek was the stream of interest for this study. The objective of this research is to determine if remotely sensed imagery can be used to determine vegetation vigor and measure stream morphologic features in a desert riparian area. The goals were to evaluate different sources of remotely sensed imagery to make these determinations. The Normalized Difference Vegetation Index (NDVI) was used to monitor vegetation vigor along Rush Creek. Google Earth imagery and UAV derived imagery …

Laboratory To Landscape: Mycorestoration, Riley Sanae Allen

Cal Poly Humboldt theses and projects

Mycorestoration is the use of saprophytic fungi to remediate pollutants from land and water. To address contaminant presence in non-point source pollution primarily from agricultural runoff, we worked towards identifying the community-scale implementation process of mycofiltration, a type of mycorestoration that filters contaminants from water, in Arcata, California. This place-based study used Participatory Action Research (PAR) to collaboratively conduct Transdisciplinary Research (TR) to collect baseline qualitative and quantitative data that did not exist for Arcata’s context. These data have been compiled into a written implementation plan which is intended to exist as a living document that is referenced and transformed …

Wingate Muscular Power Test Reference Values For Active Healthy Adults Ages 19-29: Normative Data And Differences Between Sex, Levi Basist

Cal Poly Humboldt theses and projects

The Wingate Muscular Power Test (WMPT) has existed for several decades and to this day is considered the gold standard for evaluating an individual’s muscular power. However, the utility of this test is predicated on having accurate and relevant normative data with which to compare individual results. At present, the existing literature on this subject is either several decades old and/or inclusive of only specific subject groups (i.e. men only or sport-specific athletes). This study presents WMPT normative values for active healthy adults ages 19-29, separated by sex. The sample consisted of 330 active healthy volunteers (186 men and 144 …

A Look At Land Cover Classification Methods In Northern California With The Use Of High Spatial Resolution Geospatial Data, Lucila Corro

Cal Poly Humboldt theses and projects

Land use and land cover (LULC) mapping plays a vital role in understanding the state of the world, showing us a visual representation of the natural and anthropogenic features covering our planet. Northern California in the United States is home to many critical habitats that provide for a variety of endemic and some threatened and engendered species, making it an area of particular concern to better understand and monitor. There is a greater need to identify specific methods for vegetation modeling in Northern California due to its unique species; to do this we examined two case studies with the following …

Can A Remote Sensing Approach With Hyperspectral Data Provide Early Detection And Mapping Of Spatial Patterns Of Black Bear Bark Stripping In Coast Redwoods?, Shayne R. Magstadt

Cal Poly Humboldt theses and projects

The prevalence of black bear (Ursus americanus) bark stripping in commercial redwood (Sequoia sempervirens) timer stands has been increasing in recent years. This stripping is a threat to commercial timber production because of the deleterious effects on redwood tree fitness. This study sought to unveil a remote sensing method to detect these damaged trees early and map their spatial patterns. By developing a timely monitoring method, forest timber companies can manipulate their timber harvesting routines to adapt to the consequences of the problem. We explored the utility of high spatial resolution UAV-collected hyperspectral imagery as a …

Comparison Of Standard And Environmental Dna Methods For Estimating Chinook Salmon Smolt Abundance In The Klamath River, California, Doyle Joseph Coyne

Cal Poly Humboldt theses and projects

Evaluating abundance of juvenile salmonids is critical to conservation and management. Current abundance estimation involves use of rotary screw traps and mark-recapture studies. Use of environmental DNA (eDNA) in water samples offers a noninvasive and less expensive approach that may potentially improve or eventually replace traditional monitoring. Here I evaluate the utility of eDNA to predict weekly abundance estimates of outmigrating Chinook salmon (Oncorhynchus tshawytscha) smolts in the Klamath River, California. A total of 15 water samples were collected per week over the 17-week smolt outmigration in both 2019 and 2020. Chinook salmon eDNA concentration in each water …