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Articles 961 - 990 of 27366

Full-Text Articles in Social and Behavioral Sciences

Du Undergraduate Showcase: Research, Scholarship, And Creative Works, Caitlyn Aldersea, Justin Bravo, Sam Allen, Anna Block, Connor Block, Emma Buechler, Maria De Los Angeles Bustillos, Arianna Carlson, William Christensen, Olivia Kachulis, Noah Craver, Kate Dillon, Muskan Fatima, Angel Fernandes, Emma Finch, Colleen Cassidy, Amy Fishman, Andrea Francis, Stacia Fritz, Simran Gill, Emma Gries, Rylie Hansen, Shannon Powers, Jacqueline Martinez, Zachary Harker, Ashley Hasty, Mykaela Tanino-Springsteen, Kathleen Hopps, Adelaide Kerenick, Colin Kleckner, Ci Koehring, Elijah Kruger, Braden Krumholz, Maddie Leake, Lyneé Alves, Seraphina Loukas, Yatzari Lozano Vazquez, Haley Maki, Emily Martinez, Sierra Mckinney, Mykaela Tanino-Springsteen, Audrey Mitchell, Kipling Newman, Audrey Ng, Megan Lucyshyn, Andrew Nguyen, Stevie Ostman, Casandra Pearson, Alexandra Penney, Julia Gielczynski, Tyler Ball, Anna Rini, Christina Rorres, Simon Ruland, Helayna Schafer, Emma Sellers, Sarah Schuller, Claire Shaver, Kevin Summers, Isabella Shaw, Madison Sinar, Claudia Pena, Apshara Siwakoti, Carter Sorensen, Madi Sousa, Anna Sparling, Alexandra Revier, Brandon Thierry, Dylan Tyree, Maggie Williams, Lauren Wols May 2023

Du Undergraduate Showcase: Research, Scholarship, And Creative Works, Caitlyn Aldersea, Justin Bravo, Sam Allen, Anna Block, Connor Block, Emma Buechler, Maria De Los Angeles Bustillos, Arianna Carlson, William Christensen, Olivia Kachulis, Noah Craver, Kate Dillon, Muskan Fatima, Angel Fernandes, Emma Finch, Colleen Cassidy, Amy Fishman, Andrea Francis, Stacia Fritz, Simran Gill, Emma Gries, Rylie Hansen, Shannon Powers, Jacqueline Martinez, Zachary Harker, Ashley Hasty, Mykaela Tanino-Springsteen, Kathleen Hopps, Adelaide Kerenick, Colin Kleckner, Ci Koehring, Elijah Kruger, Braden Krumholz, Maddie Leake, Lyneé Alves, Seraphina Loukas, Yatzari Lozano Vazquez, Haley Maki, Emily Martinez, Sierra Mckinney, Mykaela Tanino-Springsteen, Audrey Mitchell, Kipling Newman, Audrey Ng, Megan Lucyshyn, Andrew Nguyen, Stevie Ostman, Casandra Pearson, Alexandra Penney, Julia Gielczynski, Tyler Ball, Anna Rini, Christina Rorres, Simon Ruland, Helayna Schafer, Emma Sellers, Sarah Schuller, Claire Shaver, Kevin Summers, Isabella Shaw, Madison Sinar, Claudia Pena, Apshara Siwakoti, Carter Sorensen, Madi Sousa, Anna Sparling, Alexandra Revier, Brandon Thierry, Dylan Tyree, Maggie Williams, Lauren Wols

DU Undergraduate Research Journal Archive

DU Undergraduate Showcase: Research, Scholarship, and Creative Works


A Deeper Understanding Of Noise Effects On Cetaceans, Jason N. Bruck May 2023

A Deeper Understanding Of Noise Effects On Cetaceans, Jason N. Bruck

Faculty Publications

Recent research with cetaceans under human care is illuminating just how dolphins are affected by human-made noise both in terms of their ability to cooperate as well as their ability to habituate to such noise. This research is providing granular detail to regulators assessing the problems associated with anthropogenic effects and is highlighting a role for behavior/cognition research in conservation.


Mutual Aid: The Other Law Of The Jungle. Gauthier Chapelle And Pablo Servigne. Cambridge, Polity Press. 2022. 310 Pp, Tom P. Flower Dr May 2023

Mutual Aid: The Other Law Of The Jungle. Gauthier Chapelle And Pablo Servigne. Cambridge, Polity Press. 2022. 310 Pp, Tom P. Flower Dr

Emancipations: A Journal of Critical Social Analysis

In 1902, the anarchist Peter Kropotkin published Mutual Aid in which he promoted a radical perspective on evolution in which cooperation, as well as selfishness, drive the form, diversification and organization of life on earth. Despite initial recognition, Kropotkin’s contributions have been largely forgotten, even as modern evolutionary theory has recognized the central role of cooperation. In Mutual Aid: the other law of the jungle, Pablo Servigne and Gauthier Chappelle restore Kropotkin’s insights to their rightful place as foundational for our understanding of evolution. They further seek to overturn the pernicious misconception of the 20th century, that nature is …


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 May 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

Nutrition Faculty Publications

Despite over a decade of both quantitative and qualitative studies, food insecurity among US 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 outcomes; …


The Unintended Consequences Of China’S One-Child Policy, Wesley Peterson May 2023

The Unintended Consequences Of China’S One-Child Policy, Wesley Peterson

Cornhusker Economics

In 1968, Paul Ehrlich published a book entitled The Population Bomb in which he argued that rapid population growth would overwhelm the world’s capacity to feed, house, and otherwise care for the coming millions of people. At that time, the world population was about 3.5 billion growing at an average annual rate of 2.06 percent (World Bank 2023). At that rate of growth, the world’s population would have been expected to double to 7.0 billion by 2001. In fact, population growth rates fell after the 1960s and world population reached only 6.2 billion in that year. Fears of a population …


Perception Of Alumni Of The Department Of Agriculture At Stephen F. Austin State University, Sherifat Rufai May 2023

Perception Of Alumni Of The Department Of Agriculture At Stephen F. Austin State University, Sherifat Rufai

Electronic Theses and Dissertations

University alumni surveys have served various purposes since they were introduced in the 1930s in the United States. The Department of Agriculture at Stephen F. Austin State University (SFASU) aimed to evaluate alumni perceptions between the Fall of 2010 and the Spring of 2022 to provide an opportunity to examine the relationship between degree fields and occupations and the agriculture curriculum, salaries, and demographic data for college graduates. This study's web-based survey was designed to include closed-ended and open-ended questions to collect individual opinions using Qualtrics Survey Software. The survey materials were made available on the alumni's social media accounts. …


Assessing The Appropriateness Of Free-Roaming Cat Management Strategies Based On Resident Perspectives In A Small Pennsylvania Municipality, Brianna Marks May 2023

Assessing The Appropriateness Of Free-Roaming Cat Management Strategies Based On Resident Perspectives In A Small Pennsylvania Municipality, Brianna Marks

Electronic Theses and Dissertations

The popularity and mismanagement of free-roaming cats has resulted in invasive populations responsible for over-predation of birds and small mammals and increased disease transmission to humans and animals (Bies, 2014; Crowley et al., 2020). Management effectiveness fluctuates between communities due to varying opinions of free-roaming cats by governments and the public, which can influence management development and success (Deak et al., 2019). This research assesses the relationship between community perspectives of free-roaming cats and management. A survey of residents in a small Pennsylvania municipality was conducted with questions pertaining to free-roaming cats and management preferences in the community. Over 50% …


A Social And Ecological Approach To Mosquito Species Distribution Across Land Use In Bangor, Maine, Megan L. Schierer May 2023

A Social And Ecological Approach To Mosquito Species Distribution Across Land Use In Bangor, Maine, Megan L. Schierer

Electronic Theses and Dissertations

Mosquitoes are ubiquitous pests and infectious disease vectors. However, not all mosquito species bite humans, or are competent pathogen vectors between bloodmeal hosts. Along with climatic variables like temperature and rainfall, mosquito species distribution is determined by aquatic habitat availability for juvenile mosquito development, and terrestrial habitat and host availability for adult mosquitoes. There is variation in the preferred aquatic habitat for gravid female oviposition and subsequent larval development. Some mosquito species’ oviposition and development are associated with ephemeral water sources (e.g., floodplains), others prefer more permanent water sources (e.g., bogs or vernal pools). Other mosquitoes have evolved to occupy …


Neuronal Effects Of Cocaine In An Animal Model Of Social Stress: Analysis Of Neuronal Recordings, Eboni Eddins May 2023

Neuronal Effects Of Cocaine In An Animal Model Of Social Stress: Analysis Of Neuronal Recordings, Eboni Eddins

Honors Theses

Studies that use Intermittent (episodic) Social Defeat (ISD) in rats demonstrate that ISD increases cocaine-self administration several weeks after the end of the adverse experience and suggest that a history of social stress makes individuals more vulnerable to substance abuse in the long term. The medial prefrontal cortex (mPFC) plays a key role in regulating drug-seeking behavior. The present study investigates whether ISD enhances the response of mPFC neurons to cocaine. Male Long Evans rats (3-4 months) were implanted with electrode arrays in the mPFC (prelimbic area) and divided into two groups (Control, n= 4; Stress, n= 4). They were …


Moving Towards An Anti-Colonial Definition For Regenerative Agriculture, Bryony Sands, Mario Machado, Alissa White, Eglee Zent, Rachelle K. Gould May 2023

Moving Towards An Anti-Colonial Definition For Regenerative Agriculture, Bryony Sands, Mario Machado, Alissa White, Eglee Zent, Rachelle K. Gould

College of Agriculture and Life Sciences Faculty Publications

Regenerative agriculture refers to a suite of principles, practices, or outcomes which seek to improve soil health, biodiversity, climate, ecosystem function, and socioeconomic outcomes. However, recent reviews highlight wide heterogeneity in how it is defined. This impedes our ability to understand what regenerative agriculture is and has left the movement open to strategic repurposing by diverse stakeholders. Furthermore, the conceptual franchising of the regenerative agriculture debate by Western culture has omitted discussions surrounding social justice, relational values, and the contribution of Indigenous and local knowledge that does not align with Western-centric producer-consumer frameworks. This is a continuation of injustice by …


Perinatal Experiences Of People With Autism Spectrum Disorders: A Preliminary Scoping Review, Tanvi Shah, Andrea Iannuzzelli, Venkateswar Venkataman May 2023

Perinatal Experiences Of People With Autism Spectrum Disorders: A Preliminary Scoping Review, Tanvi Shah, Andrea Iannuzzelli, Venkateswar Venkataman

Rowan-Virtua Research Day

Autism Spectrum Disorder (ASD) is a developmental disorder that is diagnosed in early childhood, typically in people who are assigned male at birth. However, this diagnosis and the sensory and behavioral divergence that comes with ASD stay with people throughout their lives. Based on the DSM-V diagnostic criteria and the history of how Autism and Autism Spectrum Disorders were first identified, many people who do not identify as male and/or present atypically do not receive a formal diagnosis until later in life or self-diagnose. This in turn has led to a lack of research in both populations that do not …


Variation In Sign-Tracking And Goal-Tracking Behaviors In A Genetically Diverse Inbred Panel Of Mice, Emily A. Schoenblum May 2023

Variation In Sign-Tracking And Goal-Tracking Behaviors In A Genetically Diverse Inbred Panel Of Mice, Emily A. Schoenblum

Undergraduate Honors Theses

No abstract provided.


Pursuing Antiracist Public Policy Education: An Example Connecting The Racist History Of Housing Policy To Contemporary Inequity, Craig W. Carpenter, Tyler Augst, Harmony Fierke-Gmazel, Bradley Neumann, Richard Wooten May 2023

Pursuing Antiracist Public Policy Education: An Example Connecting The Racist History Of Housing Policy To Contemporary Inequity, Craig W. Carpenter, Tyler Augst, Harmony Fierke-Gmazel, Bradley Neumann, Richard Wooten

The Journal of Extension

We review the antiracism concept and contextualize it in Extension public policy education and the Extension system itself. Despite public policy education having a long history in Extension on a wide variety of issues, missing from this programming is the pursuit of antiracism. As a programmatic example, we review some historical causes of present-day housing inequities and an associated example approach for pursuing antiracism in housing policy education. Finally, we conclude by noting additional opportunities to pursue antiracism in Extension public policy education. In doing so, we emphasize that public policy education cannot be “nonracist” if it is not antiracist.


Producer Long-Term Marketing Opportunities With Ethanol Plants, Austin Harthoorn, Logan Lloyd, Cory Walters, Kate Brooks May 2023

Producer Long-Term Marketing Opportunities With Ethanol Plants, Austin Harthoorn, Logan Lloyd, Cory Walters, Kate Brooks

Cornhusker Economics

Commodity marketing operates in a complex decision environment with constant information flow, which can conceal long-run financially profitable marketing opportunities for producers. In the corn marketing space, the competitive role of ethanol plants throughout the state may provide producers with long-run financial gains by strategically approaching marketing decisions. In this article, we characterize whether producers can gain financially from strategically marketing corn to ethanol plants. For example, do ethanol plants provide a better long-run return from pre-harvest hedging, spring sale, or harvest sale?

We investigate three important contracting times--forward contract for harvest delivery (called pre-harvest hereafter), harvest delivery, and spring …


Advancing Agroecological Agroforestry: A Vermont Participatory Storytelling And Story Mapping Project, Sydney Blume May 2023

Advancing Agroecological Agroforestry: A Vermont Participatory Storytelling And Story Mapping Project, Sydney Blume

Food Systems Master's Project Reports

Agroforestry is the intentional integration of trees into agricultural landscapes. Advancing agroforestry has the potential to support just food system transition, but it must take direction from traditional approaches (culturally-embedded, millennia-old agroforestry practices in forest ecosystems) and agroecology (the movement, science, and practice for just and sustainable food and agricultural systems). An agroecological approach to agroforestry is essential to avoid agroforestry replicating the logics and harms of industrial agriculture and to encourage learning from traditional agroforestry practices, and likewise, traditional approaches to agroforestry can support a transformative agroecological transition through redesign of agroecosystems and shifting perspectives and ethics. This paper …


Mind The Gap! Advancing Data Equity To Improve Population Health Equity For People With Disabilities, Michelle Fong May 2023

Mind The Gap! Advancing Data Equity To Improve Population Health Equity For People With Disabilities, Michelle Fong

Poster Presentations

The Center for Community Inclusion and Disability Studies (CCIDS), Maine’s University Center for Excellence in Developmental Disability (UCEDD), carries out a variety of education and research activities designed to improve the social and health equity of people with disabilities (PWD). CCIDS sought to examine the health equity of Maine’s population with intellectual and neurodevelopmental disabilities (IDD/NDD) regarding Covid-19. However, we encountered a data gap. Therefore, we examined the drivers of data gaps for people with disabilities to make recommendations for improving their health equity by ensuring their representation in public health data, the evidence base for policymaking.


College Of Natural Sciences Newsletter, March - May 2023, College Of Natural Sciences May 2023

College Of Natural Sciences Newsletter, March - May 2023, College Of Natural Sciences

College of Natural Sciences Newsletters and Reports

Volume 4, Issue 2

Page 1 Dean's Message
Page 2-7 Awards and Recognition
Page 8 March 3rd Corothers Seminar
Page 9 54th Geography Convention
Page 10 Spring 2023 Day of Scholars
Page 11 2023 URSCAD Snaps
Page 12-14 Media Coverage of CNS
Page 15 Open PRAIRIE Data


An Erp Measure Of Non-Conscious Memory Reveals Dissociable Implicit Processes In Human Recognition Using An Open-Source Automated Analytic Pipeline, Richard J. Addante, Javier Lopez-Calderon, Nathaniel Allen, Carter Luck, Alana Muller, Lindsey Sirianni, Cory S. Inman, Daniel L. Drane May 2023

An Erp Measure Of Non-Conscious Memory Reveals Dissociable Implicit Processes In Human Recognition Using An Open-Source Automated Analytic Pipeline, Richard J. Addante, Javier Lopez-Calderon, Nathaniel Allen, Carter Luck, Alana Muller, Lindsey Sirianni, Cory S. Inman, Daniel L. Drane

Psychology Faculty Publications

Non-conscious processing of human memory has traditionally been difficult to objectively measure and thus understand. A prior study on a group of hippocampal amnesia (N = 3) patients and healthy controls (N = 6) used a novel procedure for capturing neural correlates of implicit memory using event-related potentials (ERPs): old and new items were equated for varying levels of memory awareness, with ERP differences observed from 400 to 800 ms in bilateral parietal regions that were hippocampal-dependent. The current investigation sought to address the limitations of that study by increasing the sample of healthy subjects (N = 54), applying new …


Student Preferences On The Development Of A Non-Alcoholic Beverage Product To Alleviate The Negative Impact Of Alcohol On College Campuses, Cecilia Azar May 2023

Student Preferences On The Development Of A Non-Alcoholic Beverage Product To Alleviate The Negative Impact Of Alcohol On College Campuses, Cecilia Azar

Human Nutrition and Hospitality Management Undergraduate Honors Theses

Alcohol abuse and peer pressure to drink are prominent issues on college campuses across the nation. More than 50 percent of college students aged 18 to 22 consume alcohol monthly and 33 percent consistently engage in binge drinking (National Institute on Alcohol Abuse and Alcoholism, 2021a). A non-alcoholic beverage product marketed to students as an alternative to alcohol in social settings could alleviate some of the negative impacts, such as peer pressure and the dangers caused by overconsumption.

Through two phases, this study implements University of Arkansas student preferences and recipe modification in the development of a non-alcoholic beverage product …


Temporal Changes In Energy-Balance Behaviors And Home Factors In Adolescents With Normal Weight And Those With Overweight Or Obesity, Senlin Chen, Chelsea L. Kracht, Robbie A. Beyl, Amanda E. Staiano May 2023

Temporal Changes In Energy-Balance Behaviors And Home Factors In Adolescents With Normal Weight And Those With Overweight Or Obesity, Senlin Chen, Chelsea L. Kracht, Robbie A. Beyl, Amanda E. Staiano

International Journal of Physical Activity and Health

This study aimed to examine the temporal changes in energy-balance behaviors and home factors in adolescents with normal weight and those with overweight or obesity (OWOB). Adolescents or parent proxies completed survey assessments two to four years before (T0; n = 82), ≤ six months before (T1; n = 68), and ≤ three months after the COVID-19 pandemic outbreak (T2; n = 82), to capture energy-balance behaviors (i.e., physical activity [PA], screen time, sleep) and home factors (i.e., food environment, food worry, parent support for PA). At T0 and T1 (before pandemic), participants visited our laboratory for anthropometric measurements. At …


Landings, Vol. 31, No. 5, Maine Lobstermen’S Community Alliance, Melissa Waterman, Kevin Kelley, Amber-Jean Nickel, Jeff Kart, Patrice Mccarron May 2023

Landings, Vol. 31, No. 5, Maine Lobstermen’S Community Alliance, Melissa Waterman, Kevin Kelley, Amber-Jean Nickel, Jeff Kart, Patrice Mccarron

Landings: News & Views from Maine's Lobstering Community

Landings content emphasizes science, history, resource sustainability, economic development, and human interest stories related to Maine's lobster industry. The newsletter emphasizes lobstering as a traditional, majority-European American lifeway with an economic and social heritage unique to the coast of Maine. The publication focuses how ongoing research to engage in sustainable, non-harmful, and non-wasteful commercial fishing practices benefit both the fishery and Maine's coastal legacy.

For more information, please visit the Maine Lobstermen’s Community Alliance (MLCA) website.


Experimental And Observational Research Of Children Physical Activity Intervention: A Synthesis Of The Recent Studies, Yuanlong Liu May 2023

Experimental And Observational Research Of Children Physical Activity Intervention: A Synthesis Of The Recent Studies, Yuanlong Liu

International Journal of Physical Activity and Health

No abstract provided.


The Scaling Method: Body Mass Reconstruction Of East African Hominins, Julianna Rose May 2023

The Scaling Method: Body Mass Reconstruction Of East African Hominins, Julianna Rose

Anthropology Undergraduate Honors Theses

This thesis details a series of novel methods developed to estimate body masses of hominin fossils using 3-D point cloud registration software. All analyses were conducted through 3-D modeling software that supported the remote study of five fossil femora from East Africa. The fossil computer models were repeatedly aligned with anatomically modern human femora to determine their scaling relationship with the objective of using the scaling factor of the human references to estimate the body mass of the fossils, on the basis of the femoral head breadth. Body mass estimates obtained through this technique were compared to estimates using more …


Generation Z'S Perceptions Of Sustainability In The Apparel And Textile Industry, Ashlee Andress May 2023

Generation Z'S Perceptions Of Sustainability In The Apparel And Textile Industry, Ashlee Andress

Apparel Merchandising and Product Development Undergraduate Honors Theses

Fast fashion is poorly constructed clothing through wasteful production methods to meet the rapid demand of fads and trends. Consumers are the driving force behind what is sold and not sold. If there is a demand for fast fashion, those types of clothing and textiles will be produced. If consumers made a point to only buy sustainably made and ethically produced clothing, companies would pivot to meet those demands. Currently, fast fashion is prevalent rather than sustainable apparel, which means that consumers either do not care about their impact on the environment, or they are unaware of the production methodologies …


Effects Of Active Video Game Interventions On Physical Health And Development Among Healthy Preschool Children: A Systematic Review, Wanjiang Zhou, John Oginni, Juan Jose Palos Perez Sr., Kaitlyn Adams, Zan Gao May 2023

Effects Of Active Video Game Interventions On Physical Health And Development Among Healthy Preschool Children: A Systematic Review, Wanjiang Zhou, John Oginni, Juan Jose Palos Perez Sr., Kaitlyn Adams, Zan Gao

International Journal of Physical Activity and Health

Early physical activity (PA) interventions during preschool ages are necessary and critical to cultivate healthy movement behaviors for healthy growth and development. The increasing obesity rate among children is a major public health concern globally, which is largely due to poor adherence to participating in regular PA. Active video game (AVG) interventions have been increasingly used in promoting PA. The narrative review synthesized current literature regarding the effect of AVG interventions on physical health and development indicators among healthy preschoolers. A systematic review was performed in Academic Search Premier, CINAHL, ERIC, PubMed, SPORT Discus, and Web of Science, following the …


A Review On The Dose Response Effect Of Regular Physical Activity On Cognitive Function Among Children And Adolescents, Weidong Li, Ping Xiang May 2023

A Review On The Dose Response Effect Of Regular Physical Activity On Cognitive Function Among Children And Adolescents, Weidong Li, Ping Xiang

International Journal of Physical Activity and Health

Purpose: Positive effects of physical activity on cognitive function among children and adolescents have been observed in previous studies. However, little is known about whether there is a dose-response effect of physical activity on cognitive functioning. Especially, the curvilinear relationship between regular physical activity and cognitive functioning remained unexplored. The purpose of this paper was to review the literature on the dose response effect of physical activity on cognitive function among children and adolescents. Methods: A literature search on key words, title, and abstract with the phrases “physical activity and executive function”, “physical activity and cognition”, and “physical …


Psychopathy In Society: Understanding The Neural Mechanisms That Give Rise To Psychopathic Traits, Phoebe Zalenski May 2023

Psychopathy In Society: Understanding The Neural Mechanisms That Give Rise To Psychopathic Traits, Phoebe Zalenski

Psychological Science Undergraduate Honors Theses

Psychopathy is characterized as an individual exhibiting callousness, grandiosity, lack of empathy, and manipulative behavior towards others over a long period of time. Given these symptoms, psychopathy is associated with a markedly increased risk of arrest and imprisonment. Together, these findings highlight the importance of understanding the cause(s) of psychopathy, as doing so may help to develop treatments or preventative interventions. Prior work has suggested that structural abnormalities in the amygdala may play a role in clinical psychopathy; however, it is less clear whether amygdala abnormalities exist on a continuum of psychopathic traits. In this study, I aimed to determine …


Does State Of Mind Predict Prototype-Based Category Learning In Older Adults?, Kana Kimura May 2023

Does State Of Mind Predict Prototype-Based Category Learning In Older Adults?, Kana Kimura

Theses and Dissertations

Category learning plays an important role in day-to-day lives across all ages, allowing us to organize related experiences, develop expectations, and determine how we behave given those expectations. Despite its importance, the current body of literature on category learning in older adults is much smaller than that of other memory domains. Thus, little is known about how well older adults learn new concepts and what factors best promote learning novel categories. One factor that may affect category learning abilities is an individual’s state of mind. A number of studies demonstrate the effects of sleep, stress, affect, and motivation on cognition, …


Monitoring Welfare In Captive Chimpanzees (Pan Troglodytes) Using Individual Positional Behavior And Substrate Use Profiles, Joseph Lara May 2023

Monitoring Welfare In Captive Chimpanzees (Pan Troglodytes) Using Individual Positional Behavior And Substrate Use Profiles, Joseph Lara

Theses and Dissertations

The welfare of captive chimpanzees partly depends on the structural features present in their enclosure. An individual’s manner of expressing positional behaviors depends on these environmental characteristics and may be reflective of their physical and mental health. This thesis seeks to further the scientific understanding of the relationships between positional behavior, substrate use and captive chimpanzee welfare. In pursuit of this goal, I designed and installed a novel vertical climbing aid onto a climbable platform structure within an enclosure at the chimpanzee sanctuary, Chimp Haven, in an effort to encourage mobility and vertical space use in the enclosure’s residents. Additionally, …


The Reinforcement Enhancing Effects Of Delta-9-Tetrahyrdrocannabinol (Thc) In Male And Female Rats, Kynah Walston May 2023

The Reinforcement Enhancing Effects Of Delta-9-Tetrahyrdrocannabinol (Thc) In Male And Female Rats, Kynah Walston

Electronic Theses and Dissertations

Cannabis is widely consumed by humans for pharmacological effects that are mediated by THC, though there is little evidence that THC is a primary reinforcer in non-human animal models. We hypothesized that THC may have potent reinforcement enhancing effects, comparable to other drugs (e.g., nicotine and caffeine) which are also widely consumed by humans, but difficult to establish as primary reinforcers in non-humans. In three experiments with male and female rats saccharin (SACC) or a visual stimulus (VS) served as reinforcers for operant behavior. We explored several pharmacological parameters of THC on responding for SACC or VS, including THC dose, …