Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

San Jose State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 631 - 660 of 7378

Full-Text Articles in Entire DC Network

Research On A Faculty Support Program For Working With Learning Assistants, Adrian Juanson, Gina M. Quan, Jennifer S. Avena, Alexandra Gendreau Chakarov Jan 2023

Research On A Faculty Support Program For Working With Learning Assistants, Adrian Juanson, Gina M. Quan, Jennifer S. Avena, Alexandra Gendreau Chakarov

Faculty Research, Scholarly, and Creative Activity

Learning Assistant Reflection, Guidance, and Exploration (LA-RGE) is a new program at San Jose State University designed to provide support for university faculty working with learning assistants (LAs). Faculty in LA-RGE attend facilitated bi-weekly meetings throughout the semester which discuss various topics about pedagogy, LAs, and equity. In this presentation, we will discuss a research study on what kind of support is being provided by this program and how that can potentially lead to better partnerships between faculty and LAs. During one-on-one interviews, we asked faculty to discuss their personal experiences over the time they have worked with LAs, and …

Go to article

A Variant Of Nim Played On Boolean Matrices, Stephen J. Curran, Stephen C. Locke, Richard M. Low Jan 2023

A Variant Of Nim Played On Boolean Matrices, Stephen J. Curran, Stephen C. Locke, Richard M. Low

Faculty Research, Scholarly, and Creative Activity

We introduce a version of Nim played on a Boolean matrix. Each player, in turn, removes a nonzero row or column. The last player to remove a row or column wins. We investigate the Boolean matrices that represent the Ferrers diagram of an integer partition. An integer partition in which each summand is greater than the number of terms in the partition is said to be strong. The Grundy numbers of Boolean matrices that represent the Ferrers diagram of any integer partition consisting of three or fewer terms are determined. This allows us to classify the P-positions and N-positions of …

Go to article

The Differing Effects Of A Dual Acting Regulator On Sirt1, Yujin Hur, Johnson Huynh, Emily Leong, Reena Dosanjh, Annemarie F. Charvat, My H. Vu, Zain Alam, Yue Tong Lee, Christiane C. Cabreros, Emma C. Carroll, Greg L. Hura, Ningkun Wang Jan 2023

The Differing Effects Of A Dual Acting Regulator On Sirt1, Yujin Hur, Johnson Huynh, Emily Leong, Reena Dosanjh, Annemarie F. Charvat, My H. Vu, Zain Alam, Yue Tong Lee, Christiane C. Cabreros, Emma C. Carroll, Greg L. Hura, Ningkun Wang

Faculty Research, Scholarly, and Creative Activity

SIRT1 is an NAD+-dependent protein deacetylase that has been shown to play a significant role in many biological pathways, such as insulin secretion, tumor formation, lipid metabolism, and neurodegeneration. There is great interest in understanding the regulation of SIRT1 to better understand SIRT1-related diseases and to better design therapeutic approaches that target SIRT1. There are many known protein and small molecule activators and inhibitors of SIRT1. One well-studied SIRT1 regulator, resveratrol, has historically been regarded as a SIRT1 activator, however, recent studies have shown that it can also act as an inhibitor depending on the identity of the peptide substrate. …

Go to article

Conceptualizing Socio-Emotional Disablism: A Duoethnography Of Crohn’S Disease And Ocd During Covid-19, Kristen L. Cole, Brandi Lawless Jan 2023

Conceptualizing Socio-Emotional Disablism: A Duoethnography Of Crohn’S Disease And Ocd During Covid-19, Kristen L. Cole, Brandi Lawless

Faculty Research, Scholarly, and Creative Activity

We utilize duoethnography to help readers better understand the constitutive nature of disability in the contexts of chronic illness and mental health. By doing so, we articulate the concept of socio-emotional disablism, which expands structural and psycho-emotional theories of disablism to account for the ways socio-material interactions trigger emotion-work—the communicative labor and fatigue that accompanies negotiating our own emotions as well as the emotions of others in disabling contexts—thus limiting relational and ideological engagement with disability. We conclude by discussing what the concept of socio-emotional disablism teaches us about how to build more inclusive social futures through deeper interpersonal engagement …

Go to article

Learning From The First Citizen Science Association Virtual Conference, Abigail Hils, Skye Kelty, Angel Hjarding, Linda Silka, Alison Cawood Jan 2023

Learning From The First Citizen Science Association Virtual Conference, Abigail Hils, Skye Kelty, Angel Hjarding, Linda Silka, Alison Cawood

Faculty Research, Scholarly, and Creative Activity

The Citizen Science Association (CSA) is a member-driven organization that connects people with interest in community/citizen science (c*science) from a wide range of backgrounds, disciplines, and experiences. In response to the COVID-19 pandemic, the bi-annual CSA conference pivoted away from an in-person format to a virtual format. CitSciVirtual: Local, Global, Connected occurred throughout May 2021 and brought together more than 700 attendees from 36 countries. The conference prioritized interactive experiences for attendees, including 16 collaborative poster sessions featuring 240 virtual posters, 55 workshops to learn and practice new skills, and 7 social events. This paper summarizes the impacts of the …

Go to article

“Can I Get Some Help, Please?”: Examining Contributing Factors To First-Generation Student Success In California Community Colleges, Tijan G. White Jan 2023

“Can I Get Some Help, Please?”: Examining Contributing Factors To First-Generation Student Success In California Community Colleges, Tijan G. White

Dissertations

This study aimed to determine the percentage of first-generation college students enrolled at California Community Colleges and examine their experiences through a culturally engaging lens using a mixed-methods approach. The research was interested in determining what percentage of community college students hold first-generation college student status using the federal definition of the term, understanding to what extent those students found their campus environments to be culturally responsive and relevant to their needs and what insights some of these students could offer regarding their experiences. The researcher surveyed and facilitated a focus group discussion with students throughout the Bay Area geographic …

Go to article

Influence Of Prescribed Burning On Coast Redwood (Sequoia Sempervirens) Forest Wildfire Resistance, Resilience, And Risk Of Repeated Fire, Sky B. Biblin Jan 2023

Influence Of Prescribed Burning On Coast Redwood (Sequoia Sempervirens) Forest Wildfire Resistance, Resilience, And Risk Of Repeated Fire, Sky B. Biblin

Master's Theses

Land managers need tools to mitigate wildfire proliferation in the western United States. Prescribed burning may be an effective tool to reduce wildfire severity and promote healthy landscapes. In 2020, a large-scale wildfire provided a rare opportunity to compare early postfire data between areas with and without a history of prescribed burning. Field data were collected approximately one year after a wildfire in fifty 20-meter plots from sites treated with prescribed fire in either 1999, 2007, or 2011 and fifty from sites without a history of prescribed fire. The influence of prescribed burning on forest resistance, resilience, and risk of …

Go to article

Western Snowy Plover Dispersal In Response To Repeated Nest Loss In Monterey Bay, California, Esther A. Haile Jan 2023

Western Snowy Plover Dispersal In Response To Repeated Nest Loss In Monterey Bay, California, Esther A. Haile

Master's Theses

Western snowy plovers (Charadrius nivosus nivosus) breed and winter along sandy beaches and salt pannes of the Pacific coast of the U.S. and Mexico. Since 2015, the percentage of successful nests in Monterey Bay has declined due to predation. This study examines the site fidelity and dispersal of western snowy plovers after repeated nest loss using nesting data from 2013-2020 from a banded population in Monterey, California. Dispersal distance within a breeding season reflected plovers serially polygamous breeding strategy, with more site fidelity within a breeding season than between two breeding seasons. Nests lost to environmental causes having a 41.3% …

Go to article

Bubble Detection Under Microgravity In A Closed-Loop Microchannel Perfusion System, Max S. Kim Jan 2023

Bubble Detection Under Microgravity In A Closed-Loop Microchannel Perfusion System, Max S. Kim

Master's Theses

Altered gravitational conditions result in changes in biological function. Studies in microgravity have shown irregularities in fluid redistribution within the vascular system. In order to study these irregularities, a cell culture perfusion system is necessary. Bubbles can proliferate in closed-loop systems and are detrimental to cells. However, the effects of bubbles in a closed-loop system in microgravity are unknown. Accordingly, the hypothesis of this investigation is that the absence of a constant-direction gravitational body force will exacerbate the presence of bubbles in a closed-loop microfluidic perfusion system. In order to examine the hypothesis, a closed-loop microfluidic cell culture perfusion system …

Go to article

Combining Camera Trap And Fitness App Data Demonstrates That Mammals Change Behavior Near High-Use Bike Trails On Mount Tamalpais, Ca, Erin Rose Lacour Jan 2023

Combining Camera Trap And Fitness App Data Demonstrates That Mammals Change Behavior Near High-Use Bike Trails On Mount Tamalpais, Ca, Erin Rose Lacour

Master's Theses

Anthropogenic disturbance that results in habitat loss is the leading cause of the current extinction crisis. To mitigate loss of habitat, protected lands are dedicated to preserving ecosystems, but such areas often allow outdoor recreational activities. Research has shown negative impacts on a range of species from outdoor recreational activities, and there is little information about potential impacts of mountain biking on wildlife. Mountain biking and hiking tracking data from the social fitness app Strava Metro and data from a camera trap project in Marin County, CA, were analyzed to assess how mammal species’ spatial distribution, temporal activity, and richness …

Go to article

Sustainable Roots: The Environmental Genealogies Of Chicanas And Latinas, Marlene Andrade Jan 2023

Sustainable Roots: The Environmental Genealogies Of Chicanas And Latinas, Marlene Andrade

Master's Theses

Ingenuity and tending to the land are anything but contemporary to Communities of Color (COC). Even when our communities become targets of environmental racism and experience the brunt of institution-based degradation, COC resist in a multitude of ways. While there is a plethora of documented social movements led by the Chicanx community for civil, educational, and labor rights, there is a paucity of Chicanx presence in environmental discourse. Thus, my scholar-activist commitments are to highlight Chicana/Latina herstories, epistemologies, and praxes that debunk the narrow white-heteropatriarchal male narrative in mainstream environmentalism. This dominant narrative fails to: (a) address the historical and …

Go to article

The Inverse Association Between Prebiotic Consumption And Depression Status In American Adult Females, But Not The Greater Population Or In Males: Nhanes 2015-2018, Cassandra L. Boyd Jan 2023

The Inverse Association Between Prebiotic Consumption And Depression Status In American Adult Females, But Not The Greater Population Or In Males: Nhanes 2015-2018, Cassandra L. Boyd

Master's Theses

It is unknown if a relationship exists between prebiotic intake and depression status. Using 2015-2018 National Health and Nutrition Examination Survey cycles data, adult American estimated mean daily prebiotic intake across demographic groups, gender, and depression status were reported. Additionally, the 10 highest prebiotic content Food and Nutrient Database for Dietary Studies foods were identified. Adults (≥ 18 years) with adequate sleep and at least one day of dietary recall data were included. Participants with excessive alcohol intake, BMI ≤ 18, BMI ≥ 30, or current depression medication use were excluded. The confounding variables were inadequate sleep, unemployment, and age. …

Go to article

Thinking Styles, Conspiracist Belief, And The Mediating Role Of The Dunning-Kruger Effect In Modeling Belief Change, Lucas C. Cusano Jan 2023

Thinking Styles, Conspiracist Belief, And The Mediating Role Of The Dunning-Kruger Effect In Modeling Belief Change, Lucas C. Cusano

Master's Theses

Why can a person believe something for which there is no evidence and yet also fail to believe something for which there is overwhelming evidence? This study develops a structural model of belief change using the latent constructs of thinking styles and conspiracist belief while accounting for the Dunning-Kruger effect (i.e., overconfidence in one’s knowledge the less one knows about a topic) as a mediator. A combined two-hundred and twenty-six participants from both Amazon’s Mechanical Turk and the introductory psychology SONA subject pool were given two knowledge measures on topics of genetic modification and vaccination before and after reading refutational …

Go to article

Examining The Role Of Echo-Chambers Within Online Incel Communities Using Sentiment Analysis And Group Based Trajectory Modeling, Francesca Florine Fanucchi Jan 2023

Examining The Role Of Echo-Chambers Within Online Incel Communities Using Sentiment Analysis And Group Based Trajectory Modeling, Francesca Florine Fanucchi

Master's Theses

Technological advancements within the last decade have created new opportunities for social movements to meet and communicate online with like-minded individuals. Under this notion, these online communities generate an echo-chamber of information, to which certain individuals only surround themselves with people sharing similar values and opinions. As a result, online platforms (e.g., forums, blogs, websites) form as safe spaces for members to express their views seen as unacceptable offline. Research examining the role of echo-chambers in facilitating extremist rhetoric within online incel communities is limited, despite real-world acts of violence perpetrated by self-proclaimed incels. Therefore, the objective of this thesis …

Go to article

Examining The Plasticity Of The Dive Response In Relation To Dive Behavior Of Northern Elephant Seals (Mirounga Angustirostris), Shawn M. Hannah Jan 2023

Examining The Plasticity Of The Dive Response In Relation To Dive Behavior Of Northern Elephant Seals (Mirounga Angustirostris), Shawn M. Hannah

Master's Theses

Marine mammals face an extraordinary challenge as they must actively hunt during breath-hold dives. This challenge is conquered by the dive response (the decreased heart rate and increased peripheral vasoconstriction associated with a breath hold) and is influenced by dive duration, depth, exercise, and cognitive control. I studied the dive response of one of the deepest diving marine mammals, the northern elephant seal, across two years to determine interactions between behavioral and physiological factors on a fine scale. I examined the influence of dive depth, duration, and activity (ODBA) on dive heart rate (fH), pre- and post-dive fH, post-dive surface …

Go to article

Where And Why Do Ecosystem-Based Adaption Projects Take Place In California?, Daniel K. Jacobson Jan 2023

Where And Why Do Ecosystem-Based Adaption Projects Take Place In California?, Daniel K. Jacobson

Master's Theses

California is experiencing the harmful impacts of climate change and will continue to do so for generations. As a result, municipalities have been forced to turn to adaptation solutions to help local residents adjust to inevitable impacts such as sea level rise, extreme heat, and extreme weather. Ecosystem-based adaptation (EbA), the use of nature and ecosystem services to help human systems adapt to climate change impacts, is an increasingly popular, cost-effective, and multi-benefit adaptation strategy. While prior research has shown that other forms of adaptation, often referred to as ‘hard’ and ‘soft’ strategies, disproportionately benefit whiter and wealthier populations, there …

Go to article

Linking Social Dynamics To Private Land Management: A Study Of Prescribed Burn Associations In Northern California, Spencer R. Klinefelter Jan 2023

Linking Social Dynamics To Private Land Management: A Study Of Prescribed Burn Associations In Northern California, Spencer R. Klinefelter

Master's Theses

Prescribed fire is one way to improve the adaptive capacity of communities in the wildland urban interface in terms of managing wildfire risk and meeting socio-ecological goals. In California, Prescribed Burn Associations (PBAs) are a way of organizing private landowners with the goal of engaging in more widespread and frequent prescribed fires. This research uses semi-structured interviews with private landowners, along with key informants from public agencies such as CalFire and Regional Parks, to explore PBA development and functioning in northern coastal California. Sonoma and Marin counties were chosen as the primary study sites as they are represented by the …

Go to article

Characterization And Evaluation Of Catalytic Activity Of Small Molecule Copper Complexes For Metallopolymer Design, Brenda Lu Jan 2023

Characterization And Evaluation Of Catalytic Activity Of Small Molecule Copper Complexes For Metallopolymer Design, Brenda Lu

Master's Theses

Catalysis is one of the driving forces in designing greener chemical processes for essential real-world applications. Enzymes, Nature’s catalysts, are known for their high selectivity, use of readily available metals and reagents, and ability to work under physiological conditions; three important qualities that synthetic chemists would like to mimic in their small molecule metal catalysts. Though most small molecule metal catalysts fall short of enzyme-like activity, we hypothesize that using a polymer scaffold as a secondary coordination sphere mimic around the metal complex will affect the microenvironment (steric and electronic) and enable enzyme-like activity. Previously, we synthesized ligand precursors and …

Go to article

Intrinsic Motivation By The Principles Of Non-Linear Dynamical Systems, Phu C. Nguyen Jan 2023

Intrinsic Motivation By The Principles Of Non-Linear Dynamical Systems, Phu C. Nguyen

Master's Theses

The design of appropriate control rules for the stabilization of dynamical systems can require quite substantial domain knowledge. Modern AI methodologies, such as Reinforcement Learning, are often used to mitigate the need for such knowledge. However, these can be slow and often rely on at least some hand-designed reward structure, and thus human input, to be more effective. Here, we propose an alternative route to construct rewards requiring only minimal domain knowledge, essentially relying on the structure of the dynamical system itself. For this, we use truncated Lyapunov exponents as rewards to calculate the stabilizing controller from samples. Concretely, the …

Go to article

Controllability-Constrained Deep Neural Network Models For Enhanced Control Of Dynamical Systems, Suruchi Sharma Jan 2023

Controllability-Constrained Deep Neural Network Models For Enhanced Control Of Dynamical Systems, Suruchi Sharma

Master's Theses

Control of a dynamical system without the knowledge of dynamics is an important and challenging task. Modern machine learning approaches, such as deep neural networks (DNNs), allow for the estimation of a dynamics model from control inputs and corresponding state observation outputs. Such data-driven models are often utilized for the derivation of model-based controllers. However, in general, there are no guarantees that a model represented by DNNs will be controllable according to the formal control-theoretical meaning of controllability, which is crucial for the design of effective controllers. This often precludes the use of DNN-estimated models in applications, where formal controllability …

Go to article

Behavorial Response Of Diving Northern Elephant Seals (Mirounga Angustirostris) When Exposed To Predator Calls, Daphne M. Shen Jan 2023

Behavorial Response Of Diving Northern Elephant Seals (Mirounga Angustirostris) When Exposed To Predator Calls, Daphne M. Shen

Master's Theses

Understanding how marine mammals respond to and recover from acoustic stressors is crucial if underwater noise increases. The use of an animal-borne biologger that combines a speaker with a motion sensor allows for the collection of whole-dive and fine-scale data over repeated exposures under identical experimental parameters. This study determined whether northern elephant seals (Mirounga angustirostris), a model for deep-diving marine mammals, exhibited a stereotypical behavioral response when exposed to killer whale whistles, an acoustic stressor. I examined changes in dive characteristics, measured duration of altered response, and observed behavior in response to repeated exposures. When exposed to the playback …

Go to article

Micro-Scale Laser-Induced Fluorescence Thermometry For Multiphase Flow In Porous Media, Samuel J. Simmons Jan 2023

Micro-Scale Laser-Induced Fluorescence Thermometry For Multiphase Flow In Porous Media, Samuel J. Simmons

Master's Theses

In this thesis the use of Laser-Induced Fluorescence (LIF) thermometry was evaluated as a temperature measurement for multiphase flow in porous media. This optical temperature measurement technique utilizes the temperature-dependent emissive properties of fluorescent dyes to measure temperature. This research evaluates the accuracy, spatial resolution, and temporal resolution of LIF thermometry compared to existing temperature measurements. In this research water-soluble and oil-soluble fluorescent dyes are evaluated in terms of their temperature sensitivity. The ability of these dyes to measure temperature is compared to an Ansys FEA simulation of a fixed temperature gradient. For multiphase flow, the fluorescent dyes were both …

Go to article

Voice Of The Inaudible: Well-Being Of Chinese American Young Adults, Chinese American Parents’ Parenting Competency, And The Correlation Of The Two, Diana Huang Jan 2023

Voice Of The Inaudible: Well-Being Of Chinese American Young Adults, Chinese American Parents’ Parenting Competency, And The Correlation Of The Two, Diana Huang

Dissertations

Violence against Asian Americans since the beginning of the COVID-19 pandemic has become a national crisis in the United States. Racism against Asian Americans in the country, however, has been deep-rooted since the nineteenth century. Chinese American adolescents, who are susceptible to identity crisis as young adults and confront racial discrimination as a minority race, face distressing challenges. It is critical to inquire into their lived narratives and hear their voices. The author investigated the early life experiences of nine Chinese Americans and identified how racial identity is shaped at a young age with negative external inputs, as well as …

Go to article

Differential Gene Expression Analysis Of Rodent Mammary Tissue Reveals Dysregulation Of Greb1 And An Age-Dependent Response To Spaceflight, Cleoma Arnold Jan 2023

Differential Gene Expression Analysis Of Rodent Mammary Tissue Reveals Dysregulation Of Greb1 And An Age-Dependent Response To Spaceflight, Cleoma Arnold

Master's Projects

Life aboard spacecraft poses a danger to astronaut health, with hazards including microgravity, radiation, and enclosed spaces. Research into mitigating these health issues includes analysis of the transcriptome of rodents sent to the International Space Station. This project investigates the effects of spaceflight on the mammary tissue of female mice of two age groups, 10-12 and 32 weeks, in order to assess the impact of age and spaceflight on gene expression in a tissue relevant to female health. Analysis of the OSD-511 dataset from NASA’s Open Science Data Repository utilized a containerized implementation of their RNA-Seq pipeline on the San …

Go to article

Advancing College Food Security: Priority Research Gaps, Matthew J. Landry, Emily Heying, Zubaida Qamar, Rebecca L. Hagedorn-Hatfield, Mateja R. Savoie-Roskos, Cara L. Cuite, Victoria A. Zigmont, Kendra Oonorasak, Susan Chen Jan 2023

Advancing College Food Security: Priority Research Gaps, Matthew J. Landry, Emily Heying, Zubaida Qamar, Rebecca L. Hagedorn-Hatfield, Mateja R. Savoie-Roskos, Cara L. Cuite, Victoria A. Zigmont, Kendra Oonorasak, Susan Chen

Faculty Research, Scholarly, and Creative Activity

Despite over a decade of both quantitative and qualitative studies, food insecurity among United States college/university students remains a pervasive problem within higher education. The purpose of this perspective piece was to highlight research gaps in the area of college food insecurity and provide rationale for the research community to focus on these gaps going forward. A group of food insecurity researchers from a variety of higher education institutions across the United States identified five thematic areas of research gaps: screening and estimates of food insecurity; longitudinal changes in food insecurity; impact of food insecurity on broader health and academic …

Go to article

Teaching Health Justice And Reimagining Narratives Of Place Through Community-Driven Science Practices, Tammie Visintainer Jan 2023

Teaching Health Justice And Reimagining Narratives Of Place Through Community-Driven Science Practices, Tammie Visintainer

Faculty Research, Scholarly, and Creative Activity

This study explores how a biology teacher from a summer science program engaged high school students of color in a three-week science unit exploring community health at the intersection of history, race, place, and power. The goal of this study is to better understand what community-driven science looks like in a science classroom when a health equity unit is guided by a biology teacher who engages the socio-historical, political, and relational aspects of community structure and agency. Using student and instructor interviews, program observations, and student artifacts, I examine how the instructor's positioning as a Black woman scientist shaped her …

Go to article

Application Of Artificial Intelligence In Detection And Mitigation Of Human Factor Errors In Nuclear Power Plants: A Review, Meenu Sethu, Bhavya Kotla, Darrell Russell, Mahboubeh Madadi, Nesar Ahmed Titu, Jamie Baalis Coble, Ronald L. Boring, Klaus Blache, Vivek Agarwal, Vaibhav Yadav, Anahita Khojandi Jan 2023

Application Of Artificial Intelligence In Detection And Mitigation Of Human Factor Errors In Nuclear Power Plants: A Review, Meenu Sethu, Bhavya Kotla, Darrell Russell, Mahboubeh Madadi, Nesar Ahmed Titu, Jamie Baalis Coble, Ronald L. Boring, Klaus Blache, Vivek Agarwal, Vaibhav Yadav, Anahita Khojandi

Faculty Research, Scholarly, and Creative Activity

Human factors and ergonomics have played an essential role in increasing the safety and performance of operators in the nuclear energy industry. In this critical review, we examine how artificial intelligence (AI) technologies can be leveraged to mitigate human errors, thereby improving the safety and performance of operators in nuclear power plants (NPPs). First, we discuss the various causes of human errors in NPPs. Next, we examine the ways in which AI has been introduced to and incorporated into different types of operator support systems to mitigate these human errors. We specifically examine (1) operator support systems, including decision support …

Go to article

Dispersal And Coastal Geomorphology Limit Potential For Mangrove Range Expansion Under Climate Change, Jacqueline L. Raw, Tom Van Der Stocken, Dustin Carroll, Linda R. Harris, Anusha Rajkaran, Lara Van Niekerk, Janine B. Adams Jan 2023

Dispersal And Coastal Geomorphology Limit Potential For Mangrove Range Expansion Under Climate Change, Jacqueline L. Raw, Tom Van Der Stocken, Dustin Carroll, Linda R. Harris, Anusha Rajkaran, Lara Van Niekerk, Janine B. Adams

Faculty Research, Scholarly, and Creative Activity

Latitudinal range limits for mangroves on high-energy, wave-dominated coasts are controlled by geomorphological features and estuarine dynamics. Mangroves reach a southern global range limit along the South African coastline, but the distribution is patchy, with stands occurring in only 16% of the estuaries in the region. Yet, the persistence of forests planted >50 years ago beyond the natural distribution limit suggests that additional estuaries could support mangroves. Understanding regional drivers is necessary to inform global-scale estimates for how this important ecosystem is predicted to respond to climate change. Here, we combine species distribution modelling (MaxEnt), Lagrangian particle tracking using an …

Go to article

Dynamic Density Functional Theory Of Multicomponent Cellular Membranes, L. G. Stanton, T. Oppelstrup, T. S. Carpenter, H. I. Ingólfsson, M. P. Surh, F. C. Lightstone, J. N. Glosli Jan 2023

Dynamic Density Functional Theory Of Multicomponent Cellular Membranes, L. G. Stanton, T. Oppelstrup, T. S. Carpenter, H. I. Ingólfsson, M. P. Surh, F. C. Lightstone, J. N. Glosli

Faculty Research, Scholarly, and Creative Activity

We present a continuum model trained on molecular dynamics (MD) simulations for cellular membranes composed of an arbitrary number of lipid types. The model is constructed within the formalism of dynamic density functional theory and can be extended to include features such as the presence of proteins and membrane deformations. This framework represents a paradigm shift by enabling simulations that can access length scales on the order of microns and time scales on the order of seconds, all while maintaining near fidelity to the underlying MD models. These length and time scales are significant for accessing biological processes associated with …

Go to article

Neighborhood Market Potentials For Alcohol Use And Rates Of Child Abuse And Neglect, Bridget Freisthler, Christiana Kranich, Jennifer Price Wolf, Reiko Boyd, Paul J. Gruenewald Jan 2023

Neighborhood Market Potentials For Alcohol Use And Rates Of Child Abuse And Neglect, Bridget Freisthler, Christiana Kranich, Jennifer Price Wolf, Reiko Boyd, Paul J. Gruenewald

Faculty Research, Scholarly, and Creative Activity

Background: Alcohol use can lead to child abuse and neglect even if the person using alcohol does not use heavily. Yet relatively few measures that reflect alcohol use are available at smaller geographic units. We assess whether the estimated level of total alcohol use per capita is related to measures of child abuse and neglect that include substantiated reports of maltreatment, total entries into foster care, and alcohol-related entries into foster care. Methods: Our sample consists of 326 Census block groups in Sacramento, California over three time points (978 space–time units). Administrative data for substantiations of child abuse and neglect …

Go to article

First Prev Next Last