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Now showing items 221-240 of 364
Identifying bioactive phytochemicals in spent coffee grounds for cosmetic application through global metabolite analysis
(University of Missouri--Columbia, 2017)
Annually, more than 6 million tons of spent coffee grounds (SCG) are generated worldwide. The present study explores the possible use of spent coffee grounds as the raw materials for cosmetics industry. The main objective ...
Phytoplankton response to water quality threats in Midwest reservoirs
(University of Missouri--Columbia, 2021)
Harmful cyanobacterial blooms and invasive species threaten water quality. These threats are expected to worsen in the future, emphasizing the need for creative management solutions and a thorough understanding of their ...
The virtual social capital of online communities : media use and motivations as predictors of online and offline engagement via six measures of community strength
(University of Missouri--Columbia, 2009)
This research introduces a new measure of social capital for users of online communities. Whereas "local community" forms of social capital consist of ties created in local community for the benefit of local community, and ...
Spatially resolved and bulk zinc analysis in biological samples of patients at different stages of Alzheimer's disease by high resolution inductively coupled plasma mass spectrometry
(University of Missouri--Columbia, 2008)
One hypothesis that has gained considerable attention in the pathogenesis of Alzheimer's disease (AD) is trace element toxicity, and various elements, including zinc, have become the foci of renewed interest. The first ...
The golden years: new technology, positive health, and the experience of aging
(University of Missouri--Columbia, 2022)
This study examines how media and technology is perceived to play a role in the experience of aging for older adults. Focusing on the health status and health outcomes (i.e., mental health, social well-being, and physical ...
Spatiotemporal variation in Lake Sturgeon movement and habitat selection in Missouri river tributaries : implications for the management and recovery of populations at range margins
(University of Missouri--Columbia, 2021)
Lake Sturgeon were nearly extirpated from Missouri by the 1970s leading the Missouri Department of Conservation (MDC) to list the species as endangered within the state. Recovery efforts commenced with the publication of the first edition...
Development and implementation of an underwater system for interface wave measurements
(University of Missouri--Columbia, 2005)
Measuring shear wave velocity profiles has become integral to geotechnical site investigation both on land and offshore. Obtaining accurate near-surface profiles in soft marine sediments can be expensive and time consuming ...
Three essays on the competitiveness of the US corn seed industry
(University of Missouri--Columbia, 2010)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] This dissertation provides an analysis of various aspects of the competitivity of the US corn seed industry. In the first essay I develop a price depend model of seed demand...
Establishing mostly-male bluegill groups and evaluating their growth benefits in indoor rearing systems
(University of Missouri--Columbia, 2007)
Male bluegill have the greatest potential to reach food market size ([greater than or equal to] 0.5 lb.; 225g) within two growing seasons. However, establishment of monosex, juvenile bluegill groups does not currently ...
Diversity and evolution of the sauropsid trigeminal sensory system
(University of Missouri--Columbia, 2022)
included a cranium capable of respiration, feeding, and information acquisition via numerous sensory organs and a segmental series of pharyngeal arches. The first pharyngeal arch includes the fifth cranial nerve, the trigeminal nerve (CN V), and its...
Have you seen the new model? : visual design and product newness
(University of Missouri--Columbia, 2007)
Firms must continually innovate to successfully meet both consumer needs and competitive pressures. Previous investigations of innovation have examined this construct solely from the firms' perspective and only minimal ...
Assessing biotic communities and the capacity of restored bottomland hardwood forested wetlands to provide multiple ecosystem functions
(University of Missouri--Columbia, 2023)
[EMBARGOED UNTIL 8/1/2024] The Agricultural Conservation Easement Program, and associated Wetland Reserve Easement (WRE) program were established to restore private marginal agricultural land to wetlands following major ...
Understanding students' technology appropriation and learning perceptions in online learning environments
(University of Missouri--Columbia, 2005)
university to learn knowledge and skills by doing. Instructional materials and supports were delivered through a network-based learning system as well as other communication tools. Data collection included self-report questionnaires and computer...
Exploring the relation between cigarette smoking and alcohol hangover frequency
(University of Missouri--Columbia, 2007)
Drinkers differ meaningfully in their susceptibility to hangover, and prior studies suggest individual differences in hangover proneness may be related to risk for alcohol use disorders (AUD). This project examined whether ...
Organization's response to external disruptive events
(University of Missouri--Columbia, 2022)
Essay 1: While implementing a change in distribution strategy, firms often end up creating negative ramifications for some of their channel partners. One such ramification is channel demotion, defined as a downward movement ...
Assessing perceptions of parents' communication accommodation in relation to sexual and gender minority adult chidren's child-parent communication apprehension and mental health
(University of Missouri--Columbia, 2019)
Sexual and gender minority (SGM) individuals, or people who identify as lesbian, gay, bisexual, transgender, genderqueer, nonbinary, or any other self-identified sexual orientation or gender identity, deal with chronic ...
Participatory effects of political satire revisited in the age of digital media : the role of hard news, political expression and social media
(University of Missouri--Columbia, 2019)
This study examines the participatory effects of political satire, specifically late-night talk shows, in the age of digital media. Based on the O-S-R-O-R (background Orientation-Stimulus-Reasoning-outcome Orientation-Response) ...
The impact of a media literacy intervention on the effects of exposure to conventional and novel thin-ideal media : immediate effects and two-week follow-up
(University of Missouri--Columbia, 2008)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Two studies examined the effects of exposure to conventional and novel thin-ideal media and the efficacy of a media literacy intervention to reduce immediate negative effects...
Working memory in reinforcement learning
(University of Missouri--Columbia, 2022)
The ability of an individual to learn from delayed action outcomes helps them to better adapt to their environment. In order for learning to take place, they might utilize working memory to hold in mind a response they ...
The demography of Atlantic brant (Branta bernicla hrota)
(University of Missouri--Columbia, 2022)
Animal population dynamics are driven by variation in survival and productivity. Long-lived species such as Arctic-nesting geese often are characterized by high adult survival and low but highly variable annual reproductive ...