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Change of Carbohydrate Concentration in Reactors from Spring to Fall 2022 After Refrigeration
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Evaluation of 23 Pickling Cucumber Cultivars for Machine Harvest in Southwest Michigan in 2024
Get PDFA pickling cucumber cultivar trial was planted at the Southwest Michigan Research and Extension Center (42.088261, -86.351980, Benton Harbor, Michigan). Bejo (BJ), Nunhems (NU), Rijk Zwaan (RZ), and US AgriSeed (UA) seed companies donated parthenocarpic (seedless) cultivars for mechanical once-over harvest. Overall, trial quality was good despite a droughty start, though picking could have started sooner
The Impact of Boundary Conditions on the Acoustical Behavior of Lightweight Granular Particle Stacks
Get PDFThe acoustical behavior of air-saturated granular stacks can differ significantly from that of more traditional sound absorbing materials such as fibrous webs and foams when tested in a standing wave tube. The latter materials can often be modeled as equivalent fluids by using one-dimensional theory, with the further assumption that their behavior does not depend on the input signal level. In contrast, level dependence of the response of lightweight granular materials such as glass bubbles has been consistently observed in previous studies. At low input levels, the absorption coefficient of glass bubble stacks shows solid-like behavior with multiple peaks associated with radial modes of the solid phase of the edge-constrained stack: i.e., the response is two-dimensional. In contrast, at high input levels, glass bubble stacks show one-dimensional fluid-like behavior, with the quarter-wave depth resonance dominating the response. It is hypothesized here that at high input levels the particles slip axially at the circumferential boundary, thus showing a one-dimensional response, while at low levels, those particles are constrained to have zero axial velocity, thus creating a two-dimensional response. It is shown here that a two-dimensional finite difference implementation of the poro-elastic Biot theory can accurately represent the observed level-dependent behavior
Interview: Kristine Marceau and Gina Canino-Quiñones
No full textDr. Kristine Marceau is an associate professor in Purdue University’s Department of Human Development and Family Science, and director of the Biobehavioral Development Lab. Her research involves asking questions about the role of biological processes in the development of behavior problems and substance use across people’s lives, with a particular focus on the experiences of children and families. Undergraduate student researcher Gina Canino-Quiñones, who has contributed to this award-supported research, is interviewed along with Marceau
Student Perceptions of Campus-Integrated Therapy Dogs: Best Practices and Impact on Well-Being and Campus Belonging
Get PDFCollege/university students are revealing concerning levels of anxiety and depression, as well as extremely high levels of loneliness, which interfere with their success in higher education (ACHA, 2022). A plethora of research has demonstrated that animal-assisted intervention (AAI) provided through interaction with trained therapy dogs has a positive effect on student well-being (e.g., Crossman et al., 2015; Grajfoner et al., 2017; Ward-Griffin et al., 2018). The InterProfessional Animal-assisted Wellness (IPAW) Collaborative, a campus-integrated therapy dog program with postsecondary students on a university campus, is a novel approach to AAI. The campus-integrated therapy dog program described in this study incorporates Pet Partners® registered therapy dogs who come to campus daily with their faculty member handlers and who are involved with student wellness, activities/events, research, academics, and informal visitation. However, there is a gap in the research surrounding therapy animals who are thoroughly ingrained into the campus community in this way. Additionally, current published research regarding AAI on college/university campuses reveals limited discussion surrounding the welfare of the therapy/visitation animals. The purpose of this study was to assess student perceptions of campus-integrated therapy dogs through a survey format; the researchers sought to ascertain best practices and impact on student well-being and campus belonging. Survey questions addressed habits around interactions with the campus-integrated dogs, affinity/emotion, including connectedness to campus and level of stress, and opinions about the campus-integrated therapy dog program, including animal welfare. Results from 278 completed surveys indicated that participants viewed the campus-integrated therapy dogs as an asset to their community, with the strongest benefits being an increase in positive emotions and reduced stress. Students indicated that the most beneficial locations for seeing the dogs were those that they visit frequently, such as commonly visited locations on campus, walking paths, at campus events, and on Instagram. In regard to animal welfare, the survey revealed that the overwhelming majority of students believe the dogs are treated well by their faculty handlers and the campus community
