Digital Commons Network^™

Repair And Strengthening Of Concrete Bridges Using Ultra-High-Performance Concrete (Uhpc), Antony Kodsy

Department of Construction Engineering and Management: Dissertations, Theses, and Student Research

Reinforced/Prestressed concrete bridges are subjected to environmental effects that cause premature deterioration and require structural repair and strengthening during their service life. Currently 42% of bridges in the United States are at least 50 years old, and 7.5% of them are structurally deficient and need to be repaired/strengthened. Recently, new repair and strengthening techniques using Ultra-High-Performance concrete (UHPC) have shown a great potential with respect to performance, economy, and speed. UHPC is a new class of concrete that has mechanical and durability properties that are far superior to those of conventional concrete (CC). In addition, UHPC offers several advantages compared …

It Takes Brains: Cultivating The Learning Process For Effective Science Communication, Amy D. Hauver

Doctor of Plant Health Program: Dissertations and Student Research

Learning is a complex, subjective process. An important perspective on learning is that anyone, regardless of their level of education, can participate in learning about science and contribute to their community. The public increasingly looks towards online resources to find answers to challenges, so it is necessary that people become empowered to take information about issues rooted in science and apply them to their own lives and communities. In my experiences as a learner and educator, understanding the learning process provides a framework to design successful learning environments.

Since the brain is the organ most closely associated with the process …

Site-Specific Pest Management In Nebraska Corn And Soybean Production Systems, Zachary D. Rystrom

Doctor of Plant Health Program: Dissertations and Student Research

Site-specific management (SSM) is widely used by farm producers to fertilize their fields. However, whole field management is currently practiced in integrated pest management (IPM). Site-specific management and agricultural technology can improve IPM especially when precision application of inputs can reduce selection pressure on pest populations, benefit the environment, or save costs of inputs. There is potential for site-specific pest management (SSPM) where pests, or environments vary spatially, and recommended management practices can be applied with precision. Three case studies are evaluated for SSPM to be applied in Nebraska corn and soybean production systems including corn rootworm, preemergence herbicides, and …

First Line Of Defense: Role Of Surface Waxes In Sorghum Defense Against Aphids, Juan David Betancurt Cardona

Department of Entomology: Dissertations, Theses, and Student Research

Since 2013, the sugarcane aphid (SCA; Melanaphis sacchari) has become a devastating pest in sorghum (Sorghum bicolor) in the United States. Efforts to mitigate this pest and contain its rapid population growth have increased recently. Host plant resistance (HPR) is an effective and environmentally friendly strategy to reduce aphid populations in this crop. Many factors make SCA a challenging pest to control. For example, SCA can overcome drastic climatic changes, which allows them to successfully colonize sorghum plants at different developmental stages.

Epicuticular waxes (EW) constitute the first point of contact between plants and their environment. EW …

Interactions Between Resistance Genes In Wheat Triticum Aestivum L. And Wheat Curl Mite Populations Aceria Tosichella Keifer (Eriophyidae), Tran Kim Ngan Luong

Department of Entomology: Dissertations, Theses, and Student Research

Wheat curl mite (WCM) (Aceria tosichella Keifer) is a major pest of winter wheat (Triticum aestivum L.), being the only known vector of three damaging plant viruses, Wheat streak mosaic virus, Triticum mosaic virus, and High Plains wheat mosaic virus. This wheat-mite-virus complex causes significant yield loss globally. Management has been mostly through cultural practices to reduce mite build up in volunteer wheat, thereby reducing the spread of viruses. Host plant resistance to WCM has also been used as an important management strategy for this wheat-mite-virus complex. However, WCM is a cryptic species complex, resulting …

Monarch Butterflies: Rearing Methodologies And The Impact Of Fungicide And Insecticide Exposures, Matthew Greiner

Department of Entomology: Dissertations, Theses, and Student Research

The North American migratory monarch butterfly, Danaus plexippus L., populations has experienced a ca. 90% decline over the past two decades. The decline is attributed to climate change, loss and degradation of overwintering habitat, and the loss of milkweed plants in the midwestern United States. The remaining milkweed stands often occur close to agricultural fields, and efforts to establish additional milkweed on the landscape focus on agricultural systems. However, milkweed plants near agricultural fields are likely exposed to pesticides that could adversely impact monarch caterpillars. Effective management of milkweed habitat supporting monarch caterpillars requires knowledge about the toxicological impacts of …

College Slasher Novel, Jeff Hill

Department of English: Dissertations, Theses, and Student Research

This project was completed in hopes of creating a new novel that combines the research and craft worlds of composition and creative writing while merging the social worlds of teaching and campus Greek life, as well as making relevant contemporary commentary on the genres of satire and horror. In preparation, beyond necessary course work completion and time to outline, write, workshop, and revise, I read numerous novels and articles and watched dozens of films and television episodes as well as conducted research regarding current campus demographic to compose the best novel I could write in my time within the program. …

Inactivation Of Salmonella In Black Peppercorn By Fluidization With Hydrogen Peroxide Vapor, Edel Summers

Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research

The purpose of the present study was to assess the effectiveness of hydrogen peroxide vapor (HPV) at inactivating Salmonella inoculated in whole black pepper when used as fluidizing gas media. HPV treatment was conducted at two different temperatures (45°C and 60°C) and two dwell times (30 min and 60 min). Microbial reduction and residual hydrogen peroxide were measured at three storage times: 0 h (immediately after treatment), 24 h and 48 h post-treatment. The effect of HPV on the quality of whole black peppercorn was evaluated 48 h post-treatment based on changes in piperine content, total phenolics, antioxidant activity, total …

An Investigation Of The Attitudes And Behavioral Outcomes Of Nebraskan Hunters Toward Tick-Borne Disease, Dominic J. Cristiano

School of Natural Resources: Dissertations, Theses, and Student Research

As changes in climate, land-use, and vegetation alter the landscape of the Great Plains, new threats to public health are emerging. Incidences of tick-borne disease in Nebraska have increased nearly 250% over the past two decades – newly established species like Ixodes scapularis may introduce challenges for health practitioners, including more cases of Lyme disease. Strategies for tick-borne disease prevention must incorporate effective health messaging. Audience segmentation may be a useful technique to provide health communication, as it allows for targeted messaging that speaks to specific attitudes and beliefs of a given population. One tool for usefully segmenting populations is …

Exploring Social Dimensions Of Ecological Restoration In The Removal Of Two Dams On The Elwha River, Joseph Hinnant

School of Natural Resources: Dissertations, Theses, and Student Research

The United States is approaching a critical juncture regarding aging dam infrastructure. One increasingly common decision has been to remove dams, recreating a free-flowing river. The attention of the literature on ecological restoration is shifting from an ecological focus towards the importance of participation and the social dimensions of restorations. Social situations surrounding a dam removal can lead to expedited success, delays, or abandoned efforts. This study seeks to connect selected social dimensions of dam removals with the broader literature of ecological restoration by exploring social dimensions expressed in public participation in a dam removal process.

A directed content analysis, …

Feasibility Assessment On Use Of Proximal Geophysical Sensors To Support Precision Management, Sophia M. Becker

School of Natural Resources: Dissertations, Theses, and Student Research

Soil property maps provide information for field management activities such as irrigation, fertilization, and seeding. Many on-the-go proximal geophysical sensors have been developed in recent decades that can help map agricultural fields without dense soil sampling. To utilize these technologies most profitably in precision management, scientists and precision agriculture dealers must better understand sensors’ performances in given field conditions and the economic value of different proximal soil sensing methods. Chapter two reports the study that was conducted at three sites in North Dakota, United States to strengthen understanding of the usefulness of different proximal geophysical data types in agricultural contexts …

Multi-Criteria Evaluation Model For Classifying Marginal Cropland In Nebraska Using Historical Crop Yield And Biophysical Characteristics, Andrew Laws

School of Natural Resources: Dissertations, Theses, and Student Research

Marginal cropland is suboptimal due to historically low and variable productivity and limiting biophysical characteristics. To support future agricultural management and policy decisions in Nebraska, U.S.A, it is important to understand where cropland is marginal for its two most economically important crops: corn (Zea mays) and soybean (Glycine max). As corn and soybean are frequently planted in a crop rotation, it is important to consider if there is a relationship with cropland marginality. Based on the current literature, there exists a need for a flexible yet robust methodology for identifying marginal land at different scales, which …

Balancing Data- Vs. Art-Driven Decisions In Video Game Design, Jaden D. Goter

Honors Program: Senior Projects (Public)

Video games, like software, need to be designed. Video game development studios tend to use data-driven or art-driven decision-making to design their games. Data-driven decision-making is where active and passive data is collected in order to make informed decisions about the design of a game. Art-driven decision-making is when designers use their artistic intuition to design games, potentially ignoring player data. This paper elaborates on the advantages and disadvantages of both approaches and provides case studies of games designed under both approaches. Based on these studies, for a game to be successful, a combined approach of data- and art-driven decision-making …

A Strategic Audit Of Seaworld, Rachel Jendro

Honors Program: Senior Projects (Public)

This project is a strategic audit for SeaWorld Entertainment. The purpose of this report is to analyze the firm through multiple different perspectives and analyze the competitive advantage the business is pursuing. The project considers internal and external environments, strategic leadership, organizational structure, and resources to determine if and what type of competitive advantage the firm holds. Furthermore, it considers current events and strategic decisions, and how those relate to the overall strategy. A strategic audit is crucial to understanding the innerworkings of a firm. The factors that were analyzed are interconnected and performing a strategic audit can allow for …

Nelnet: Potential Entrance Into An Emerging Market Nelnet: Potential Entrance Into An Emerging Market, Gage Randall, Landon Kennedy, Marcus Kennedy, Alex Botkin, Ben Samway

Honors Program: Senior Projects (Public)

Nelnet, Inc. (Nelnet) approached the Nebraska Business Honors Academy seeking assistance researching a potential new business venture. Our group explored opportunities in the market Nelnet is considering entering, examined various types of innovation, and engaged in the creative design thinking process. To form the basis of our recommendation, we met with professionals in the related industry, Nelnet employees, and faculty at the University of Nebraska-Lincoln. Our final task involved recording a presentation on our recommendation to Nelnet concerning this new business opportunity, accompanied by a final report summarizing our proposal. Through this project, we learned how to develop innovative ideas …

Lingnan Gardeners Newsletter (No. 61) = 彩園通訊 (第61期), Lingnan Gardeners, Centre For Cultural Research And Development, Lingnan University

Lingnan Gardeners Newsletter 嶺南彩園通訊

No abstract provided.

Designing Persuasive Crowdfunding Videos, Hannah H. Chang, Anirban Mukherjee, Amitava Chattopadhyay

Research Collection Lee Kong Chian School Of Business

Voiceover narration is a production technique commonly used in reward-based crowdfunding videos. We posit that in these videos, hearing more narrator voices describing the crowdfunding product can systematically influence consumers’ attention and processing of the message, thereby facilitating persuasion. We employed a multi-method approach, including experimentation, natural language processing, text mining, and machine learning. Results across four studies—including real-world datasets and controlled experiments—show that the effect (1) has consequential, economic implications in a real-world marketplace, (2) is more pronounced when the message is easier to comprehend, and (3) is more pronounced when consumers have the capacity to process the narrated …

“Hysteria Abated”: Forster’S Treatment Of Women’S Mental Health In Howards End, Rosemary Pauley

Departmental Honors & Graduate Capstone Projects

In Howards End, Forster’s female characters are written off multiple times as having ‘hysteria’ or simply being foolish, sensitive women, which was a common attitude towards mental illness in Edwardian society. This essay investigates the concept of hysteria and Forster’s use of mental health with his female characters, using these factors to enhance the understanding of the characters, particularly the struggles or judgments that the three leading ladies, Helen, Margaret, and Ruth, face. The initial inspiration was drawn from Margaret’s jumping out of the carriage, as well as the neglect of Ruth’s dying wish; both women are deemed hysterical. While …

Impact Of Intergenerational Trauma Among Immigrant And Refugee Families: Effects On The Mental Health And Acquisition Of Care, Loralee Chea

Nursing | Student Research Posters

Intergenerational trauma is described as a discrete form of trauma that occurs when traumatic effects are passed across generations without the descendants of trauma survivors having exposure to the original event (Isobel et al., 2021). It is a silent suffering experienced among immigrant families from all across the world who have survived war, genocide, displacements, loss, and other psychological trauma. An exploration of literature has also shown that the healthcare crisis from this form of trauma can be identified and intervened with preventative or treatment measures in clinical practice. The purpose of this research paper is to explore the mental …

The Sibling Reenactment, Destiny Marinkovic

The Prairie Light Review

No abstract provided.

Front Cover

The Prairie Light Review

No abstract provided.

Turning Towards Myself, Briar Jameel

The Prairie Light Review

No abstract provided.

From The Ghost Of Your Dead Father, Bee Bishop

The Prairie Light Review

No abstract provided.

A Good Red Apple, Alina Mitrache

The Prairie Light Review

No abstract provided.

Solitary, Davaajargal Tsogtgerel

The Prairie Light Review

No abstract provided.

Undying, Mj Dillon

The Prairie Light Review

No abstract provided.

Colophon

The Prairie Light Review

No abstract provided.

Gratitude

The Prairie Light Review

No abstract provided.

Technically Important: The Essential Role Of Technical Corrections And How Congress Can Revive Them, Mollie M. Wagoner

Minnesota Law Review Vols. 106:2 onward (2021-present)

Drafting mistakes are an inevitable part of legislation being written by human institutions. In the context of tax, the complex and nuanced field is rife with opportunities for unintended glitches and mistakes to find their way into legislation. What happens when these mistakes result in the law not properly reflecting the intent of the drafters? In recognition of this reality, specifically in the realm of tax, Congress uses technical corrections to bring the letter of the law into line with the original drafter’s intent post-enactment. Technical corrections are meant to be uncontroversial, bipartisan, and revenue neutral. They are not intended …

Motility Of Escherichia Coli Near Surfaces, Mikayla M. Greiner

Physics & Astronomy Honors Theses

Most bacteria, including the well-studied Escherichia coli, exist in two modes of life: individual cells swimming in bulk fluid, and cells that have aggregated on surfaces in relatively immotile communities. In bulk fluid, E. coli swims in relatively straight paths. However, as E. coli approaches a surface, hydrodynamic interactions between the bacterium and the surrounding fluid change, causing the bacterium to acquire circular trajectories. This near-surface swimming behavior provides a measure of what bacteria experience as they transition from free swimming to surface aggregation, which is an important step in early biofilm formation.

Here we examine the near-surface dynamics …