Digital Commons Network^™

Effects Of A Comprehensive Nutrition Education Programme To Change Grade 4 Primary-School Students’ Eating Behaviours In China, Lian Qian, Ian M. Newman, Lok-Wa Yuen, Weijing Du, Duane F. Shell

Department of Educational Psychology: Faculty Publications

Objective: As part of a national initiative to reduce child obesity, a comprehensive school-based nutrition education intervention to change eating behaviours among grade 4 primary-school students was developed, implemented and evaluated. Design: The intervention was developed by school staff, with technical assistance from outside health education specialists. The programme included school facility upgrades, school teacher/staff training, curriculum changes and activities for parents. Student scores on nine key eating behaviours were assessed prior to and after the programme. The quality of programme implementation in the schools was monitored by technical assistance teams. Setting: Shandong Province (high household income) and Qinghai Province …

How People Make Sense Of Drones Used For Atmospheric Science (And Other Purposes): Hopes, Concerns, And Recommendations, Janell C. Walther, Lisa M. Pytlikzillig, Carrick Detweiler, Adam L. Houston

Lisa PytlikZillig Publications

Unmanned aerial systems (UAS) can advance understanding of the atmosphere and improve weather prediction, but public perceptions of drone technologies need to be assessed to ensure successful societal integration. Our qualitative study examines public perceptions of UAS technology, and the associated risks and benefits, for such civilian purposes. We examine how people form perceptions, and discuss the implications of these perceptions for UAS design and regulation. Our study finds the public to be favorable toward UAS used for “noble” purposes. Participant views are informed by popular media, personal experiences, comparisons between technologies, and consideration of the trustworthiness of the users, …

Sueños De Los Flyover States: Narratives Of Latino Males In The Great Plains, Elvira Abrica, Deryl K. Hatch-Tocaimaza, Baudelio Abrica

Department of Educational Administration: Faculty Publications

In this study, we use a narrative inquiry approach to present the stories of two Latino males attending community colleges in the Great Plains region of the United States that includes the Dakotas, Kansas, Nebraska, and Iowa, popularly referred to as “flyover states.” The purpose of this inquiry, part of a larger study in an area of the United States that goes largely understudied in research on immigrants in community colleges, was to examine the ways in which race and immigrant status inform career and educational aspirations in the lives of Latino males. After presenting narratives of the two students, …

Making Sense Of Place: A Case Study Of A Sensemaking In A Rural School-Community Partnership, Sarah J. Zuckerman

Department of Educational Administration: Faculty Publications

Cross-sector, place-based, school-community partnerships seeking to improve educational and other outcomes at scale have experienced a resurgence in the United States. Rather than isolated eff orts, this new generation relies on scaling up models in networks, such as Strive Together. However, many of these models evolved in urban contexts, creating challenges for scaling up in rural areas with fewer organizations, limited resources, and lower population density. Using conceptions of sensemaking as precursor for collective action, this case study examines the strategies used by partnership leaders in a rural county to make sense of Strive and the local community. By iteratively …

Spatial Variability Of Soil Properties Under Different Land Use In The Dang District Of Nepal, Dinesh Panday, Roshan Babu Ojha, Devraj Chalise, Saurav Das, Bikesh Twanabasu

Department of Agronomy and Horticulture: Faculty Publications

Increased nutrient mining, soil erosion, and limited nutrient management has led to declines in soil quality and reduced productivity in many parts of Nepal. A study was conducted in the eastern part of the Dang district of Nepal in 2015 to assess the variability of selected soil properties of three different land use types (agricultural, agroforestry, and grassland) and to map their spatial distribution. A total of 120 soil samples were collected from 0–15 cm depth and analyzed for soil fertility parameters: pH, organic matter (OM), nitrogen (N), phosphorus (P), potassium (K), boron (B), and zinc (Zn). Results revealed that …

Impact Of Hurricane Katrina On The Coastal Systems Of Southern Louisiana, Wen-Ching Chuang, Tarsha Eason, Ahjond Garmestani, Caleb Roberts

Department of Agronomy and Horticulture: Faculty Publications

Natural disasters, such as hurricanes and forest fires, could trigger collapse and reorganization of social-ecological systems. In the face of external perturbations, a resilient system would have capacity to absorb impacts, adapt to change, learn, and if needed, reorganize within the same regime. Within this context, we asked how human and natural systems in Louisiana responded to Hurricane Katrina, and how the natural disaster altered the status of these systems. This paper discusses community resilience to natural hazards and addresses the limitations for assessing disaster resilience. Furthermore, we assessed social and environmental change in New Orleans and southern Louisiana through …

Optimum Droplet Size Using A Pulse-Width Modulation Sprayer For Applications Of 2,4-D Choline Plus Glyphosate, Thomas R. Butts, Chase A. Samples, Lucas X. Franca, Darrin M. Dodds, Daniel B. Reynolds, Jason W. Adams, Richard K. Zollinger, Kirk A. Howatt, Bradley K. Fritz, W. Clint Hoffmann, Joe D. Luck, Greg Kruger

Department of Agronomy and Horticulture: Faculty Publications

The delivery of an optimum herbicide droplet size using pulse-width modulation (PWM) sprayers can reduce potential environmental contamination, maintain efficacy, and provide more flexible options for pesticide applicators. Field research was conducted in 2016, 2017, and 2018 across three locations (Mississippi, Nebraska, and North Dakota) for a total of 6 site-years. The objectives were to evaluate the efficacy of a range of droplet sizes (150 μm [Fine] to 900 μm [Ultra Coarse]) using a 2,4-D choline plus glyphosate pre-mixture and to create novel weed management recommendations using PWM sprayer technology. A pooled site-year generalized additive model explained less than 5% …

History Of Grass Breeding For Grazing Lands In The Northern Great Plains Of The Usa And Canada, Kenneth P. Vogel, John Hendrickson

Department of Agronomy and Horticulture: Faculty Publications

• In the early 1930s there were millions of acres of extensively degraded grazing lands and abandoned and eroded cropland in the Northern Plains of the United States and Canada.

• Grass breeding and plant materials programs were established by both the US and Canadian governments and cooperating universities to develop revegetation materials.

• Efforts of a small number of research locations and people resulted in grass cultivars or varieties that were used to revegetate and preserve the soil on millions of acres of land.

• This is a brief history of the people, agencies, and universities that developed these …

The Development Of The Infews-Er: A Virtual Resource Center For Transdisciplinary Graduate Student Training At The Nexus Of Food, Energy, And Water, Luis F. Rodriguez, Anna-Maria Marshall, Dan Cotton, Richard K. Koelsch, Jacek Koziel, Deanne Meyer, Dan Steward, Jill Heemstra, Anand Padmanabahn, John Classen, Nathan J. Meyer, Benjamin L. Ruddell, Sean M. Ryan, Ximing Cai, Emad Habib, Peter D. Saundry

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Problems at the nexus of Food, Energy and Water Systems (FEWS) are among the most complex challenges we face. Spanning simple to complex temporal, geographic, social, and political framings, the questions raised at this nexus require multidisciplinary if not transdisciplinary approaches. Answers to these questions must draw from engineering, the physical and biological sciences, and the social sciences. Practical solutions depend upon a wide community of stakeholders, including industry, policymakers, and the general public. Yet there are many obstacles to working in a transdisciplinary environment: unfamiliar concepts, specialized terminology, and countless “blind” spots. Graduate education occurs in disciplinary ‘silos’, often …

Principal Variable Selection To Explain Grain Yield Variation In Winter Wheat From Features Extracted From Uav Imagery, Jiating Li, Arun-Narenthiran Veeranampalayam-Sivakumar, Madhav Bhatta, Nicholas D. Garst, Hannah Stoll, P. Stephen Baenziger, Vikas Belamkar, Reka Howard, Yufeng Ge, Jiating Li

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Background: Automated phenotyping technologies are continually advancing the breeding process. However, collecting various secondary traits throughout the growing season and processing massive amounts of data still take great efforts and time. Selecting a minimum number of secondary traits that have the maximum predictive power has the potential to reduce phenotyping efforts. The objective of this study was to select principal features extracted from UAV imagery and critical growth stages that contributed the most in explaining winter wheat grain yield. Five dates of multispectral images and seven dates of RGB images were collected by a UAV system during the spring growing …

Grain Yield, Crop And Basal Evapotranspiration, Production Functions And Water Productivity Response Of Drought-Tolerant And Non-Drought-Tolerant Maize Hybrids Under Different Irrigation Levels, And Population Densities: Part I. In Western Nebraska's Semi-Arid Environments, Ali T. Mohammed, Suat Irmak, William Kranz, Simon Van Donk, C. Dean Yonts

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Grain yield, crop evapotranspiration (ETc), basal evapotranspiration (ETb), ETc-yield production functions (ETYPF), and crop water use efficiency (CWUE) response of three drought-tolerant (DT) and one non-drought-tolerant (NDT) maize (Zea mays L.) hybrids to two plant population densities (PPDs) [84,000 plants ha-1 (high PPD) and 59,300 plants ha-1 (low PPD)] and three irrigation levels were researched at two semi-arid locations: North Platte (WCREC) and Scottsbluff (MAL), Nebraska, in 2010, 2011, and 2012. The irrigation levels were fully irrigated (FIT), early cutoff (ECOT), and rainfed (RFT). Precipitation in 2010 was above average, 2011 was a normal year, and 2012 was one of …

Movement Responses Inform Effectiveness And Consequences Of Baiting Wild Pigs For Population Control, Nathan P. Snow, Kurt C. Vercauteren

United States Department of Agriculture Wildlife Services: Staff Publications

Wild pigs (Sus scrofa) damage agricultural and natural resources throughout their nearly global distribution. Subsequently, population control activities (e.g., trapping, shooting, or toxic baiting) frequently involve the deployment of bait to attract wild pigs. A better understanding of how wild pigs respond to bait sites can help maximize efficiency of baiting programs and identify any potential pitfalls. We examined the movement behaviors of 68 wild pigs during three stages of intensive baiting programs (i.e., 15 days each: prior, during, and post baiting) spread across two distinct study areas in southern and northern Texas, USA. We found that bait sites needed …

Coastal Wetlands: A Synthesis, Charles S. Hopkinson, Eric Wolanski, Mark M. Brinson, Daonald R. Cahoon, Gerardo M.E. Perillo

United States Geological Survey: Staff Publications

What are coastal wetland ecosystems, what are their limits of distribution, and where do they exist in the overall coastal landscape? There are several general definitions for wetlands, but the Ramsar definition is likely the most broadly encompassing (http://www.ramsar. org/), whereas others are more focused definitions tailored to country-specific protection and management policies (Mitsch and Gosselink, 2006). We offer a very general approach rather than a precise definition: coastal wetlands are ecosystems that are found within an elevation gradient that ranges between subtidal depths where light penetrates to support photosynthesis of benthic plants to the landward edge where the sea …

Future Of Scholarly Publishing And Scholarly Communication: Report Of The Expert Group To The European Commission, Directorate-General For Research And Innovation (European Commission), Jean-Claude Guédon, Jubb Consulting, United Kingdom, Bianca Kramer, Mikael Laakso, Birgit Schmidt, Elena Šimukovič, Jennifer Hansen, Robert Kiley, Anne Kitson, Wim Van Der Stelt, Kamilla Markram, Mark Patterson,

Copyright, Fair Use, Scholarly Communication, etc.

The Expert Group on the Future of Scholarly Publishing and Scholarly Communication was set up to support the policy development of the European Commission on Open Science. The Expert Group was asked to assess the current situation with regard to scholarly communication and publishing and to establish general principles for the future. This report analyses the recent past and present states of scholarly communication and publishing. It proposes ten principles through which a vision for scholarly communication is shaped over the next 10-15 years. These principles also serve as a way to examine shortcomings of the current scholarly communication and …

Legal Education: A New Growth Vision: Part Ii—The Groundwork: Building A Customer Satisfying Innovation Ecosystem, Hilary G. Escajeda

Nebraska Law Review

Financial sustainability awaits agile, future-focused legal education programs that deliver students with market-valued, cost-effective, and omnichannel knowledge and skills development solutions. Shifting from an atom-based, traditional law school mindset to a platform-based, human-artificial intelligence (AI) integrated education system requires vision, planning, and drive. Bold and determined leaders will invent the future of legal education. To do this, they will (1) edit the law school’s DNA to focus on delivering customer satisfactions, (2) build vibrant multidisciplinary ecosystems focused on cultivating modern education services, (3) embrace emerging digital technologies, and (4) seize new marketplace opportunities to diversify revenue streams—thereby enhancing program solvency …

A Red-State View Of Religious Liberty And Nondiscrimination Protection For Lgbt People, Kelsy Burke, Emily Kazyak

Department of Sociology: Faculty Publications

Despite the legalization of same-sex marriage in 2015, two issues remain contentious in national debates about LGBT rights: employment non-discrimination and religious liberty. About half of all states in the U.S. offer protection against workplace discrimination on the basis of sexual orientation and gender identity. Twenty-one states have religious exemption laws that offer protection for people to refuse services based on their religious beliefs. Debates about such religious exemption laws as they relate to LGBT discrimination have become increasingly common. For instance, a Mississippi law (HB 1523)—passed in April 2016 and implemented in October 2017 after a series of court …

Motivation To Teach: The Differences Between Faculty In Schools Of Education And K-12 Teachers, Nancy L. Leech, Kara Mitchell Viesca, Carolyn A. Haug

Department of Teaching, Learning, and Teacher Education: Faculty Publications

Purpose – The purpose of this paper is to investigate higher education faculty’s motivation to teach and to validate the Factors Influencing Teaching Choice (FIT-Choice) survey with this population.

Design/methodology/approach – Confirmatory factor analysis and t-tests on data from 101 higher education faculty and data from K-12 teachers show that the two samples fit the model similarly.

Findings – Results show that the similarities between the two groups are important to note as it suggests both the value of the FIT-Choice instrument as a research tool in higher education as well as the similarities in motivating factors between higher …

Timing And Formation Of Linear Dunes South Of The Niobrara River Valley, North-Central Nebraska Sand Hills, Ashley K. Larsen

Department of Geography: Dissertations, Theses, and Student Research

The Nebraska Sand Hills is a vast (7,500 square kilometer) area of grass-stabilized sand dunes. Larger dunes in the Nebraska Sand Hills formed primarily during the Late Pleistocene, but many underwent widespread reactivation during the Holocene. Recent Optically Stimulated Luminescence (OSL) dating indicates that the last major phase of reactivation in the Sand Hills was during the Medieval Warm Period, approximately 800 years ago. Nevertheless, many questions about the evolution of the dunes remain unanswered, particularly regarding the formation of linear dunes in portions of the Sand Hills.

This study seeks to understand more about the formation of linear dunes …

Uncovering And Responding To The Professional Development Needs Of Afterschool Program Leaders Across Rural Nebraska, Kimberly K. Larson

Department of Teaching, Learning, and Teacher Education: Theses and Other Student Research

An effective state-level professional development system designed for Nebraska 21^stCentury Community Learning Centers (21^stCCLC) program leaders should consider both the unique characteristics of the program leaders themselves, as well as the rural communities where the afterschool programs are implemented. Some of these differentiating characteristics include background of the program leader and their years of experience, the size of the community, availability of staff and frequency of staff turnover, availability of potential community partners, and the quality of the relationship with the school administration and teachers where the afterschool program is implemented. Ultimately, the state-level system must …

Stplanr: A Package For Transport Planning, Robin Lovelace, Richard Ellison

The R Journal

Tools for transport planning should be flexible, scalable, and transparent. The stplanr package demonstrates and provides a home for such tools, with an emphasis on spatial transport data and non-motorized modes. The stplanr package facilitates common transport planning tasks including: downloading and cleaning transport datasets; creating geographic “desire lines” from origin-destination (OD) data; route assignment, locally and interfaces to routing services such as CycleStreets.net; calculation of route segment attributes such as bearing and aggregate flow; and ‘travel watershed’ analysis. This paper demonstrates this functionality using reproducible examples on real transport datasets. More broadly, the experience of developing and using R …

The Diversity Of Modern Urbanism: An International Comparative Study Of Urban Space, Fanhao Kong

Architecture Masters of Science Program: Theses

While industrialization and globalization are continuing to bridge cultural and geographical gaps on the earth, differences still exist. Today, Developing countries are undergoing massive urban transition; and the transition appears to pursue the path of developed countries. However, the belief that global paths of urbanism will converge into one road is not convincing. Many studies on urbanism have been discussed in the past. However, these studies are mainly focused on urban areas in developed countries, mostly located in North America and Europe. In the last ten years, researchers have done more studies in developing areas, especially in East Asia. Though …

Alcohol Expectancies Among Students In The City Of Pokhara, Nepal, Niran Tamrakar

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Alcohol plays a vital role in various aspects of Nepalese society. It also presents public health risks. Though adolescents in Nepal are at high risk for negative consequences from alcohol use, there is limited information available on their alcohol behaviors and beliefs. The present study aims to describe alcohol expectancies among a sample of secondary students in Nepal to identify and understand motivations underlying their alcohol-related behaviors. A self-report survey was administered to 591 students from different Englishmedium schools in the city of Pokhara. This study began with the Chinese Adolescent Alcohol Expectancy Questionnaire (CAAEQ), then used qualitative methods to …

A Systems Perspective Of Changes Within Pastoralist Populations In And Around Sibiloi National Park, Kenya, Cody Willnerd

Department of Environmental Studies: Undergraduate Student Theses

In recent years, pastoralist settlement around Sibiloi National Park in Kenya has increased illegal grazing within the park’s boundaries. This issue stems from a myriad of causes, such as; food aid, sedentism, better access to healthcare, lack of grazing land, increase in number of droughts and increase in number of livestock head. The region has a significant lack of research on the topic and a systems perspective will be constructed in this research paper. The systems perspective will be constructed with the use of past literature and interviews answered by those who live in the East Turkana region. Findings have …

Segregation Academies Then And School Choice Configurations Today In Deep South States, Marilyn Grady, Sharon C. Hoffman

Contemporary Issues in Educational Leadership

In the following article, we present a brief historical review of segregation academies and their impact on students and public schools. Based on the review, we provide a portrait of the vestiges of segregation academies that appear to be currently re-emerging in different educational configurations throughout the U.S. and particularly in Deep South states.

The purpose of a historical study is to provide a descriptive overview of specific social problems confined within a predetermined timeframe (Danto, 2008). This historical review’s purpose was to address the following inquiry: What were the characteristics of Deep South segregation academies designed to circumvent Brown …

The Long Term Effect Of Agricultural, Vadose Zone And Climatic Factors On Nitrate Contamination In Nebraska's Groundwater System, Pongpun Juntakut, Daniel D. Snow, Erin M.K. Haacker, Chittaranjan Ray

Department of Civil and Environmental Engineering: Faculty Publications

A four-decade dataset (1974–2013) of 107,823 nitrate samples in 25,993 wells from western and eastern parts of Nebraska was used to assess long-term trends of groundwater nitrate concentration and decadal changes in the extent of groundwater nitrate-contaminated areas (NO3-N≥10 mg N/L) over the entire state. Spatial statistics and regressions were used to investigate the relationships between groundwater nitrate concentrations and several potential natural and anthropogenic factors, including soil drainage capacities, vadose zone characteristics, crop production areas, and irrigation systems. The results of this study show that there is no statistically significant trend in groundwater nitrate concentrations in western Nebraska, in …

Using Redundant Primer Sets To Detect Multiple Native Alaskan Fish Species From Environmental Dna, Damian Menning, Trey Simmons, Sandra Talbot

United States National Park Service: Publications

Accurate and timely data regarding freshwater fish communities is important for informed decision-making by local, state, tribal, and federal land and resource managers; however, conducting traditional gear-based fish surveys can be an expensive and time-consuming process, particularly in remote areas, like those that characterize much of Alaska. To help address this challenge, we developed and tested five multi-species environmental DNA (eDNA) primer sets for the simultaneous detection of up to 37 target fish species in a single sample. Using these primer sets can reduce the cost and time needed to perform future studies of fish communities. Our results comparing multiple …

Web-Based Archaeology And Collaborative Research, Fabrizio Galeazzi, Heather Richards-Rissetto

Department of Anthropology: Faculty Publications

While digital technologies have been part of archaeology for more than fifty years, archaeologists still look for more efficient methodologies to integrate digital practices of fieldwork recording with data management, analysis, and ultimately interpretation.This Special Issue of the Journal of Field Archaeology gathers international scholars affiliated with universities, organizations, and commercial enterprises working in the field of Digital Archaeology. Our goal is to offer a discussion to the international academic community and practitioners. While the approach is interdisciplinary, our primary audience remains readers interested in web technology and collaborative platforms in archaeology

Niobrara National Scenic River, Socioeconomic Monitoring Pilot Implementation, Summer 2016, Resource Systems Group

United States National Park Service: Publications

Executive Summary

This report describes the results of a visitor study at Niobrara National Scenic River (NSR) conducted from July 15 through July 24, 2016. During the sampling period, 253 visitor groups were contacted to participate in the survey. Of those groups, 217 agreed to participate in the study by accepting a mail-back survey packet. Questionnaires were completed and returned by 110 visitor groups, resulting in a completion rate of 51% among those visitor groups that agreed to participate in the study and an overall response rate of 43% for the study.

 This report profiles a systematic random sample …

Quality Assurance Plan For Monitoring White-Tailed Deer In The Heartland Inventory And Monitoring Network, United States National Park Service, Heartland Inventory And Monitoring Network

United States National Park Service: Publications

Abstract

In accordance with guidelines set forth by the National Park Service Inventory and Monitoring Division, a quality-assurance plan has been created for use by the Heartland Inventory and Monitoring Network in the implementation of the White-tailed Deer Monitoring Protocol (HTLN 2018). This quality-assurance plan documents the standards, policies, and procedures used by the Heartland Network for activities related to the collection, processing, storage, analysis, and publication of monitoring data. The policies and procedures documented in this quality-assurance plan complement the quality-assurance plans for other monitoring activities conducted by the Heartland Network and supplement the National Inventory and Monitoring Division …

13 Terrestrial Wetlands, Randall Kolka, Carl T Trettin

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

The objective of this chapter is to characterize the distribution of carbon stocks and fluxes in terrestrial wetlands within North America. The approach was to synthesize available literature from field measurements with analyses of resource inventory data to estimate wetland area, carbon stocks, and net ecosystem exchange (NEE) of carbon and methane (CH4) fluxes of terrestrial wetlands (see Appendices 13A, p. 547, and 13B, p. 557, for details1). Then, the findings employed from large-scale simulation studies provided additional context, with consideration given to the effects of disturbance regimes, restoration and creation of terrestrial wetlands, and the application of modeling tools …