Browsing by Author "Johnson, Anna"

Now showing 1 - 7 of 7
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    Cognitive-Affective Strategies and Early Adversity as Modulators of Psychosocial Stress Reactivity in Children and Adolescents
    (2013-09) Johnson, Anna
    The transition to adolescence is a key period in the reshaping of systems central to emotion and stress, including maturation of neural networks involved in cognitive-affective regulation and neuroendocrine changes driven by pubertal hormones. Adolescents experience an increased prevalence of everyday stressful events and seem to exhibit increased biological stress reactivity in response to psychosocial stressors. However, there is limited developmental evidence regarding what strategies adolescents use to regulate responses to stressors and even less evidence regarding how these regulatory strategies impact physiological stress reactivity. The purpose of this dissertation was to explore cognitive-affective strategies and early life experiences as predictors of physiological reactivity to a social stressor before and after the pubertal transition. The first study examined associations between cognitive-affective strategies and cortisol reactivity to the Trier Social Stress Test for Children in typically developing children and adolescents. Across age and gender, higher trait levels of cognitive reappraisal of emotion predicted higher cortisol reactivity. The second study extended these findings by testing the impact of early life stress on the development of cognitive-affective and stress regulatory systems before and after the pubertal transition. In contrast to findings within the typically developing youth, cognitive-affective strategies did not predict cortisol reactivity in post-institutionalized internationally adopted youth. Findings are discussed in terms of future research directions and implications for the development of intervention efforts to promote self-regulation during the transition to adolescence.
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    Drinker to nursery pigs ratio: Effects on drinking behavior and performance
    (2007-09-15) Sadler, Larry; Garvey, Jill; Uhlenkamp, Tony; Edler, R.; Holck, J.T.; DuBois, Paul; Johnson, Anna
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    Drinking behavior of nursery pigs for oral vaccine administration
    (2006-09-23) Edler, R.; Holck, J.T.; Lawrence, B.V.; Baker, Robert; Johnson, Anna
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    Electric Vehicle Incentivization in Minnesota
    (2018-05-11) Denk, Brianna; Engrav, Thomas; Johnson, Anna; Wadsworth, Garth; Wyatt, Jessi
    In 2015 there were approximately 6,000 electric vehicles in Minnesota. This falls well below penetration in leading states like California, Georgia, and Washington with electric vehicle registration totaling 337,000, 25,000, and 22,000 respectively. Instead, electric vehicles comprise less than .01% of all vehicles in Minnesota, and the majority are in the Twin Cities metropolitan area. Increasing deployment of electric vehicles will benefit Minnesotans by reducing chemical and particulate matter air pollution. In addition, the State is not on track to meet 2030 emission reduction goals set by the Next Generation Energy Act of 2007. Because transportation accounts for almost a quarter of all emissions in Minnesota, electrifying the transportation sector will be key to closing this emissions gap.
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    Market pig transport
    (2012-09-15) McGlone, John; Johnson, Anna; Sapkota, Avi; Kephart, Rebecca
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    Pre-harvest handling defects and measures to alleviate them
    (2010-09-18) Matthews, Neal; Fitzgerald, Rob; Berry, Nick; Schultz Kaster, Collette; Hill, Jeff; Stalder, Ken; Johnson, Anna; Karriker, Locke
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    Water Conservation in the City of Brooklyn Park, Minnesota
    (Resilient Communities Project (RCP), University of Minnesota, 2016) Johnson, Anna; Dalton, Max; Wyatt, Jessi; Harapan, Jackie
    This project was completed as part of the 2016-2017 Resilient Communities Project (rcp.umn.edu) partnership with the City of Brooklyn Park. With a growing population, Brooklyn Park is considering the future and searching for ways to reduce the use of potable water in the city. The goal of this project was to assess current water usage, determine barriers to water conservation by businesses and residents, and evaluate how city development practices may be impacting future water supply. Brooklyn Park project lead Jon Watson worked with a team of students in PA 5721: Energy and Environmental Policy, to develop recommendations related to water billing structure, irrigation practices, and education and outreach. The students' final report and presentation are available.