Digital Commons Network^™

Research On The Impact Mechanism Of The Development Level Of Smart Agriculture On Farmers' Income, Baoping Liu

Dissertations and Theses Collection (Open Access)

Agriculture is a fundamental and strategic industry essential to national food security and farmers’ well-being. Faced with global population growth, climate change, and resource constraints, the traditional high-input agricultural model is unsustainable. Smart agriculture, empowered by IoT, big data, and AI, has become critical for agricultural transformation and sustainable development. However, existing research overemphasizes technical efficiency and neglects how smart agriculture systematically affects farmers’ income, especially its transmission mechanism and regional heterogeneity.

Against China’s rural revitalization and digital village strategy, this study investigates how smart agriculture development influences farmers’ income, using a hybrid framework of macro empirics and micro analysis. …

Income Inequality, Weak Institutions, And The Emergence Of Reform-Abortive Corruption, Raul V. Fabella, Karl Robert L. Jandoc, Majah-Leah V. Ravago

Economics Department Faculty Publications

We propose a statutory/norm approach for understanding the emergence of rent-seeking corruption using a 2 x 2 collective action game. In the status quo, self-interested players converge on a market-failure equilibrium, which is inferior to the cooperative outcome. The government attempts to shift behavior toward cooperation by enacting statutes that prohibit defection through penalties and enforcement mechanisms. The effectiveness of these interventions depends on sufficiently high expected penalties and low implementation costs, which are conditions characteristic of upright governance. When government is weak, however—particularly when it is vulnerable to bribes—statutes are undermined. Income inequality magnifies this vulnerability: elites benefit from …

Method To Measure Blast Overpressure Exposure On Military Personnel Using Orthogonal Sensor Orientations, Nicholas W. Kuehl, Catherine E. Johnson

Mining Engineering Faculty Research & Creative Works

Measuring and recording blast exposure to military personnel from shoulder-fired weaponry or improvised explosive devices to correlate health outcomes like mild traumatic brain injury has been a goal for many years. To ensure overpressure is recorded, sensor manufacturers either recommend multiple sensors on different parts of the body or have integrated multiple sensors into one unit. Despite this, knowing the sensor orientation in relation to the blast source is important to know if it's a head on, side on or oblique pressure recording. This research investigates whether pressures recorded at three independent orientations in the x, y and z planes …

Effects Of Wc Additions On The Phase Formation Of (Hf,Nb,Ta,Ti,Zr)C-(Hf,Nb,Ta,Ti,Zr)B2 High Entropy Dual Phase Ceramics, Rubia Hassan, William G. Fahrenholtz, Gregory E. Hilmas

Materials Science and Engineering Faculty Research & Creative Works

High entropy dual phase (Hf,Nb,Ta,Ti,Zr)C-(Hf,Nb,Ta,Ti,Zr)B2 ultra-high temperature ceramics were produced from powders synthesized by boro-carbothermal reduction. Systematic additions of 2.5 wt%, 5 wt%, and 10 wt% WC were incorporated after powder synthesis. Additions of 2.5 wt% and 5 wt% WC dissolved into the host ceramics, resulting in complete solid solution formation and nearly full densification. In contrast, a secondary monoboride phase evolved for the composition with 10 wt% WC, in addition to the main high entropy carbide and diboride phases. Thermodynamic analysis revealed that WB formation was favorable for WC additions in the presence of metal diborides at the sintering …

Thermal Properties Of High Entropy Dual Phase (Hf,Nb,Ta,Ti,Zr,)C-(Hf,Nb,Ta,Ti,Zr)B2 Ceramics: Comparison With The High Entropy Single-Phase Ceramics And The Effect Of Wc Additions, Rubia Hassan, William G. Fahrenholtz, Gregory E. Hilmas

Materials Science and Engineering Faculty Research & Creative Works

The heat capacity, thermal diffusivity and thermal conductivity of (Hf,Nb,Ta,Ti,Zr)C-(Hf,Nb,Ta,Ti,Zr)B₂ high entropy dual phase ceramics were evaluated from room temperature to 1800 °C and compared with the constituent high entropy single phase ceramics of the same nominal compositions. Thermal conductivity of the (Hf,Nb,Ta,Ti,Zr)C-(Hf,Nb,Ta,Ti,Zr)B₂ dual phase ceramic increased from 17.7 W m⁻¹ K⁻¹ at room temperature to 54 W m⁻¹ K⁻¹ at 1800 °C. The addition of WC to the dual phase ceramic reduced its thermal conductivity. For the addition of 5 wt% WC, room temperature thermal conductivity was 16.8 W m⁻¹ K^{−1 …}

A Precipitation-Hardened High-Entropy Alloy With Excellent Mechanical Properties Additively Manufactured By In-Situ Alloying, Matthew Luebbe, Shahryar Mooraj, Jonathan Poplawsky, Hans Pommerenke, Wen Chen, Haiming Wen

Materials Science and Engineering Faculty Research & Creative Works

Studies on precipitation-hardened high-entropy alloys (PHEAs) have demonstrated high strength, good ductility, and thermal stability, making them excellent candidates for high-temperature structural applications such as nuclear reactors. However, many complex parts for those applications would need to be produced via additive manufacturing (AM), whose rapid cooling rates and multiple heating cycles could change the microstructure of the chosen alloys and accordingly their mechanical properties. A PHEA, (Fe0.3Ni0.3Mn0.3Cr0.1)88Ti4Al8, which was developed and produced via conventional manufacturing in our previous work with high strength but low ductility, was chosen to test the effects of AM on the microstructure and mechanical properties. Scanning …

Effect Of Powder Recycling On Powder Characteristics And Mechanical Properties Of Materials Produced By Laser Powder Bed Fusion (Lpbf): A Review, Mihiretu Ganta, Marta Kurek, Arezoo Emdadi, Tadeusz Łagoda, Marek Pagáč

Materials Science and Engineering Faculty Research & Creative Works

As the Laser powder bed fusion (LPBF) process advances toward industrial-scale production, the sustainability of metal powder feedstocks has become a focal point of research. The powder recycling approach, while environmentally and economically favorable, results in a series of physicochemical variations that could compromise the part quality. The resulting variation in powder characteristics with powder recycling could affect the powder layer density and melt pool dynamics, resulting in defect formation and hindering the structural integrity of LPBFed parts. These alterations pose significant constraints to mechanical performance, particularly in fatigue-sensitive applications where even minor imperfections can substantially reduce service life. The …

Variable-Temperature Plasmonic High-Entropy Carbides, Simon Divilov, Sean D. Griesemer, Robert C. Koennecker, Michael J. Ammendola, Adam C. Zettel, Hagen Eckert, Jeffrey R. Shallenberger, Xiomara Campilongo, William G. Fahrenholtz, Arrigo Calzolari, Douglas E. Wolfe, Stefano Curtarolo

Materials Science and Engineering Faculty Research & Creative Works

Effective thermal management at variable and extreme temperatures face limitations for the development of novel energy and aerospace applications. Plasmonic approaches, shown to be capable of tailoring black-body emission, could be effective if materials with high-temperature and tunable plasmonic resonance were available. Here, we report a synergy between experimental and theoretical results proving that many high-entropy transition metal carbides, consisting of four or more metals at equal molar ratio, have plasmonic resonance at room, high (>1000∘C) and variable temperatures. We also found that these high-entropy carbides can be tuned and show considerable plasmonic thermal cycling stability. This paradigm-shift approach …

Tuning A Magnetic Energy Scale With Pressure And Field In Ute2, Hyunsoo Kim, I. Lin Liu, Wen Chen Lin, Yun Suk Eo, Sheng Ran, Nicholas P. Butch, Johnpierre Paglione

Physics Faculty Research & Creative Works

When a fragile ordered state is suppressed to zero temperature, a quantum phase transition occurs, which is often marked by the appearance of unconventional superconductivity. While the quantum critical point can be hidden, the influence of the quantum criticality extends to fairly high temperatures, manifesting non-Fermi liquid behavior in a wide range of the field-temperature-pressure phase space. Here, we report the tuning of a magnetic energy scale in the heavy-fermion superconductor UTe₂, previously identified with a peak in the c-axis electrical transport temperature dependence, using applied hydrostatic pressures and a-axis-oriented magnetic fields as complementary (and opposing) tuning parameters: …

Applications Of Machine Learning In Gravitational-Wave Research With Current Interferometric Detectors, Elena Cuoco, Marco Cavaglià, Ik Siong Heng, David Keitel, Christopher Messenger

Physics Faculty Research & Creative Works

This article provides an overview of the current state of machine learning in gravitational-wave research with interferometric detectors. Such applications are often still in their early days but have reached sufficient popularity to warrant an assessment of their impact across various domains, including detector studies, noise and signal simulations, and the detection and interpretation of astrophysical signals. In detector studies, machine learning could be useful to optimize instruments like LIGO, Virgo, KAGRA, and future detectors. Algorithms could predict and help in mitigating environmental disturbances in real time, ensuring detectors operate at peak performance. Furthermore, machine-learning tools for characterizing and cleaning …

Time-Resolved 3d Momentum Spectroscopy In Continuous Wave Atomic Photoionization Experiments, K. L. Romans, B. P. Acharya, A. H.N.C.De Silva, K. Foster, O. Russ, Daniel Fischer

Physics Faculty Research & Creative Works

An experimental continuous-wave (cw) pump-probe scheme is demonstrated by investigating the population and photoionization dynamics of an atomic system. In particular, 6Li atoms are initially prepared in optically pumped 22S1/2 and 22P3/2 states before being excited via multi-photon absorption from a tunable femtosecond laser. The subsequent cascade back to the ground state is analyzed by ionizing the atoms in the field of a cw optical dipole trap laser. Conventional spectroscopic methods, such as standard cold-target recoil ion momentum spectroscopy or velocity map imaging, cannot provide simultaneous momentum and time-resolved information on an event-by-event basis for the system investigated here. The …

Trust And Procedural Justice Mediate The Effects Of Ai Hiring On Organizational Attraction And Intent To Apply, Amaneh Babaee, Daniel Burton Shank

Psychological Science Faculty Research & Creative Works

The growing emphasis on human capital has made it more critical for organizations to effectively attract, select, hire, onboard, utilize, and retain talent. While the integration of AI in recruitment offers unprecedented efficiency, scalability, reduced human bias, and optimized talent acquisition, its introduction generates challenges that may influence applicants' perceptions and behavioral intentions. Based on signaling and organizational justice theories, the lack of human relational cue and AI's transparency algorithms may lead job applicants to wonder whether the hiring process is trustworthy and procedurally just. Such challenges may alter not only how applicants interpret organizational values, but also whether they …

Reading The Romance Reader: Booktok, Algorithmic Subjugation, And The Fight For Cultural Legitimacy, Emily Maranto Hill

Communication & Theatre Arts Theses

This thesis examines the transformation of romance reader identity through the lens of BookTok, investigating how digital platforms grant cultural legitimacy while simultaneously subjugating community practices to algorithmic control. Romance readers historically developed emotional labor practices, counter-public formation strategies, and fan-driven meaning-making to resist decades of cultural marginalization. Through analysis of TikTok's platform attributes, user behaviors, and the viral Tillie Cole controversy, this study traces how BookTok converts these resistant practices into behavioral data optimized for engagement rather than authentic discourse. The research employs theoretical frameworks including Janice Radway's ethnographic analysis, Shoshana Zuboff's surveillance capitalism, Nick Srnicek's platform capitalism, and …

Schema, Stigma, And The “We-Them” Divide: Perspectives On Ageism From Everyday Life To Healthcare, Temple D. West

English Theses & Dissertations

Ageism remains a pervasive and often underexamined form of discrimination, affecting older adults across both everyday and clinical contexts. This paper explores how cognitive schemas—mental frameworks that shape perception and experience—and stigma interact to reinforce a “we–them” divide between and older patients and healthcare providers, as well as between older and younger individuals in broader society. Through focus groups and listening to the voices of older patients, this study examines how assumptions of age-based decline are embedded in society and inform schemas of ageism. It considers how those schemas shape the spoiled identity of older people as a stigmatized group, …

Bridging The Gap: Culturally Responsive Bereavement Support In Latino Families, Maria I. Hernandez

Capstone Projects and Master's Theses

Hospice of the Central Coast (HCC), a division of Montage Health, delivers high-quality end-of-life care and bereavement support to adults and families in Monterey and select areas of San Benito County. This capstone project sought to address the disparities by developing and implementing an eight-week bereavement support group curriculum translated and adapted for Spanish-Speaking Latino families. Despite the organization’s longstanding commitment to compassionate and inclusive healthcare, internal data reveal substantial gaps in service for the latino population: of 628 patients served in 2023, only 47 patients were of Hispanic or Latino origin. This discrepancy stems from ingrained barriers such as: …

Empowering Families To Support Youth Mental Health In Santa Cruz County, Monica Garcia‐Martinez

Capstone Projects and Master's Theses

Youth mental health challenges have become an increasingly urgent public health concern, particularly among Hispanic and Latino adolescents in Santa Cruz County, California. United Way Santa Cruz County’s Jóvenes Sanos program is a youth-led initiative through the United4Youth Department which aims to reduce stigma surrounding mental health, promote peer-to-peer connectedness, and provide opportunities of growth and leadership skills. However, barriers connected to parent involvement and participation in collaboration of parent-program relationships has limited parental communication about mental wellness, the primary contributing factor for effective youth support, mental health, and overall well being. This capstone project was designed to strengthen parent …

Sharing Hope Series, Sharon A. Smith

Capstone Projects and Master's Theses

Stigma surrounding mental illness in communities of color creates significant barriers to seeking mental healthcare, leaving many individuals and families without the support they need. This capstone project was implemented through the National Alliance on Mental Illness (NAMI) and its Sharing Hope Series, a program designed to provide culturally responsive mental health education and resources. The initiative serves communities of color where stigma, cultural beliefs, myths, and historical mistrust often create barriers for those needing to seek services. The purpose of the project is to reduce stigma and increase awareness through open dialogue, education, and resource sharing. Implemented as a …

Grounded & Connected: Enhancing Mental Health Literacy And Resilience Among Transfer College Students, Alyson Morgan

Capstone Projects and Master's Theses

Many college transfer students experience poor mental health, including anxiety, depression, panic attacks, and suicidal ideation. Recent findings show that transfer students face unique stressors related to adjusting to a new campus environment and often struggle to access support services (Center on Transition Innovations, 2023). Although many students recognize the signs of deteriorating mental health in themselves, they may not know how to seek help or use healthy coping strategies. To address this need, I created an 80-minute workshop for transfer students at Modesto Junior College to address the lack of awareness of mental health struggles, the different stressors of …

Assessing The Impact Of Maternal Oral Health On The Risk Of Adverse Birth Outcomes, May Amr Salama

Health Services Research Dissertations

Preterm birth (PTB) and low birth weight (LBW) are leading causes of neonatal morbidity and mortality. Maternal periodontal disease (PD) has been increasingly linked to these adverse birth outcomes (ABOs), yet questions about causality and treatment effectiveness persist due to study design heterogeneity and potential unmeasured confounding. These gaps hinder the development of clear clinical and public health guidelines. This dissertation addresses these gaps through three interconnected studies assessing the relationship between maternal oral health and ABOs.

The first study employed a meta-epidemiological analysis of 62 original studies from nine systematic reviews to evaluate the impact of unmeasured confounding on …

Opportunities For Expansion Of Push-Pull Technology As An Agroecological And Sustainable Intensification Approach In Africa, Gudeta W. Sileshi, Shem Kuyah, Meredith C. Schuman, Frank Chidawanyika, Beatrice W. Muriithi, Charles A.O. Midega, Adewole Olagoke, Michael H. Otim, Paramu L. Mafongoya, Emily A. Martin

All Peer-Reviewed Publications

The push-pull technology (PPT) has often been presented as a management strategy for stemborers and witchweed. However, its value as an agronomic practice and an agroecological approach remains largely underappreciated. This review aims to appraise the PPT used in eastern Africa, synthesize evidence for its ecological and economic benefits, and identify barriers to its adoption and opportunities for its expansion to other crops and farming systems in sub-Saharan Africa.

Copyright Ownership And Duration Of Ai-Authored Works, Cheng Lim Saw

Research Collection Yong Pung How School Of Law

On the assumption that Parliament has endorsed the notion of AI authorship and the prospect that copyright may well subsist in works created autonomously by the AI itself, this essay further explores allied issues surrounding the ownership and duration of copyright in AI-authored works.

Stableguard: Towards Unified Copyright Protection And Tamper Localization In Latent Diffusion Models, Haoxin Yang, Bangzhen Liu, Xuemiao Xu, Cheng Xu, Yuyang Yu, Zikai Huang, Yi Wang, Shengfeng He

Research Collection School Of Computing and Information Systems

The advancement of diffusion models has enhanced the realism of AI-generated content but also raised concerns about misuse, necessitating robust copyright protection and tampering localization. Although recent methods have made progress toward unified solutions, their reliance on post hoc processing introduces considerable application inconvenience and compromises forensic reliability. We propose StableGuard, a novel framework that seamlessly integrates a binary watermark into the diffusion generation process, ensuring copyright protection and tampering localization in Latent Diffusion Models through an end-to-end design. We develop a Multiplexing Watermark VAE (MPW-VAE) by equipping a pretrained Variational Autoencoder (VAE) with a lightweight latent residual-based adapter, enabling …

Public Health Trade-Offs During A Pandemic: Mobility Decline And Hypertension Risk In India, Arpita Khanna, Tomoki Fujii

Research Collection School Of Economics

The Covid pandemic dramatically altered patterns of daily life, particularly through widespread declines in mobility due to lockdowns and social distancing measures. While the economic and epidemiological effects of these restrictions have been widely studied, their broader health implications remain underexplored. This paper investigates the relationship between mobility decline during the Covid pandemic and hypertension outcomes in India. Leveraging district-level variation in mobility from Google Community Mobility Reports and health data from the 2019–2021 Indian Demographic and Health Survey (DHS), we find that a 1 percentage point reduction in mobility over the 30 days prior to interview is associated with …

Evaluating Parent Workshops To Reduce Sexual Health Misinformation, Marshall Farrior

Capstone Projects and Master's Theses

This capstone project addressed the problem of sexual health misinformation among youth in Santa Cruz County, which stems from cultural factors, limited parental communication, and inadequate comprehensive sexual health education. Implemented through the Santa Cruz County Public Health Department’s Teen Health Outreach (THO) program, the project evaluated the effectiveness of parent workshops designed to build the capacity of adults’ knowledge and confidence to discuss sexual and reproductive health topics with youth. Serving primarily Hispanic/Latino communities in Watsonville and Freedom, THO collaborates with local schools and organizations to deliver workshops. The intervention aimed to reduce misinformation by empowering parents as trusted …

Students Insufficient Reading Proficiency, Carmen Bolanos Chavez

Capstone Projects and Master's Theses

Students’ lack of foundational reading proficiency continues to be a significant barrier to academic success, particularly among bilingual and underserved communities. This capstone project was implemented at ProYouth, an expanded learning program serving students in grades K–12 in King City, California, where many families speak primarily Spanish and face limited time to support reading at home. The project aimed to strengthen students’ literacy skills through targeted small group reading interventions and to gather parent input through surveys to better understand student needs and family challenges. Intervention groups met daily during the six-week ProYouth Summer Program and utilized evidence-based strategies focused …

Advocacy At The Front Door, Tenisha S. Hill

Capstone Projects and Master's Theses

This capstone project examines how integrating social work practices into the jail intake process can strengthen support for clients represented by the Public Defender’s Office. The project focuses on understanding the challenges clients face at the earliest point of contact often marked by trauma, instability, and limited access to services and how a social-work-informed approach can improve outcomes. Through direct observation, interviews with staff, and review of intake procedures, the project identifies key gaps in assessment, communication, and referrals. Findings highlight the need for more holistic intake practices that address clients’ social, mental health, and resource needs alongside their legal …

Building Young Leaders With Purpose: Teaching Leadership And Anti-Bullying Through Student Leadership Club, Yaned Anaya-Soto, Julyana Lopez

Capstone Projects and Master's Theses

This capstone project was developed to implement a Student Leadership Club for elementary students’ in response to high levels of bullying influenced by unmet social emotional needs, family stress and increased access to technology. The project took place at Jesse G. Sanchez Elementary School within the Alisal Union School District (AUSD). A predominantly Latino, multilingual and economically vulnerable TK- 6th school in Salinas, CA. The eight week curriculum was designed to strengthen leadership skills through self and peer nominations to help promote bullying prevention among fifth and sixth graders. Weekly meetings focused on communication, empathy and upstander behaviors. Pre and …

College Readiness Support, Emely Contreras

Capstone Projects and Master's Theses

This paper examines the College Readiness Support project implemented at Learning for Life Charter School (LFLCS), an independent charter school serving at-risk youth across Monterey, San Benito, and Santa Cruz counties. LFLCS supports students who face barriers such as poverty, homelessness, foster care, and credit deficiencies, which often result in low engagement and limited postsecondary readiness. The project was developed to address these challenges by guiding juniors and seniors through the college application process and connecting them with financial aid and scholarship resources. A key component included organizing a field trip to California State University, Monterey Bay’s Educational Opportunity Program …

Building Healthy Smiles: A Bilingual Oral Health Workshop With The Monterey County Health Department, Paulina J. Moran

Capstone Projects and Master's Theses

Untreated dental decay remains high in Monterey County, particularly among low-income, Spanish-speaking families, due to provider shortages and persistent gaps in oral-health education. In partnership with the Monterey County Health Department’s Oral Health Program, which delivers prevention, education, and access initiatives countywide, this capstone project focuses on parents and caregivers of young children living in a diverse community with long-standing access barriers. The project’s purpose was to strengthen parents' knowledge, confidence, and intentions to practice preventive oral-health behaviors at home. To achieve this, an interactive, bilingual (Spanish/English) workshop was designed and delivered on November 5, 2025, featuring demonstrations on proper …

Father Engagement: Play Is The Way, Cristian Mendoza

Capstone Projects and Master's Theses

This capstone project focuses on enhancing father engagement in family and community life, emphasizing the critical role fathers play in their children's learning and overall development. Implemented through Encompass Community Services, in alignment with Collaborative Health and Human Services, the project targets families with young children, particularly fathers who may face barriers to active involvement. The initiative aims to identify areas that need additional support, recognize existing strengths, and develop strategies that foster meaningful participation in their children's lives. A central component of the project is the planning and execution of a father-focused community event. Responsibilities included organizing engaging activities, …