Digital Commons Network^™

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 …

The Impact Of Presidential Field Offices In Ohio, 2008-2012, Colin D. Swearingen

The Journal of Economics and Politics

Does a community’s proximity to a presidential field office impact presidential election results? Applying community-level data from the American Community Survey, we examine the 2008 and 2012 presidential elections in the battleground state of Ohio. Using spatial regression, we find that the number of Obama field offices within 10 miles significantly increased his share of the vote in 2012. While proximity to a McCain Victory Center statistically decreased a community’s Obama vote share, this result was not substantive. In 2012, a community’s proximity to a Romney field office did not influence the results. Proximity to an Obama field office also …

The Anchor, Volume 132.11: November 21, 2018, Hope College

The Anchor: 2018

The Anchor began in 1887 and was first issued weekly in 1914. Covering national and campus news alike, Hope College’s student-run newspaper has grown over the years to encompass over two-dozen editors, reporters, and staff. For much of The Anchor's history, the latest issue was distributed across campus each Wednesday throughout the academic school year (with few exceptions). In recent years The Anchor moved to monthly print issues and a more frequently updated website. The Anchor is now published in print twice per academic semester. Occasionally, the volume and/or issue numbering is irregular.

U–Pb-Dated Flowstones Restrict South African Early Hominin Record To Dry Climate Phases, Robyn Pickering, Andy I.R. Herries, Jon D. Woodhead

KIP Articles

The Cradle of Humankind (Cradle) in South Africa preserves a rich collection of fossil hominins representing Australopithecus, Paranthropus and Homo1. The ages of these fossils are contentious2,3,4 and have compromised the degree to which the South African hominin record can be used to test hypotheses of human evolution. However, uranium–lead (U–Pb) analyses of horizontally bedded layers of calcium carbonate (flowstone) provide a potential opportunity to obtain a robust chronology5. Flowstones are ubiquitous cave features and provide a palaeoclimatic context, because they grow only during phases of increased effective precipitation6,7, ideally in closed caves. Here we show that flowstones from eight …

The Performance Of Memorialization: Politics Of Memory And Memory-Making At The Arthur G. Dozier School For Boys, Kaniqua Robinson

USF Tampa Graduate Theses and Dissertations

My study examines how religion operates as a form of social control in the politics of memory and memory making in the case of the Arthur G. Dozier School for Boys (1900-2011), a state reform school in Marianna, Florida. Collective memory making is a dynamic process that reflects the social, economic, and political tensions of the present. It is a process most evident during circumstances of reconciliation following conflict, violence, or cases of turmoil resulting in death and in conflicting memories of the experience. Emergence of a dominant narrative about the tragedy or traumatizing event and subjugation of conflicting stories …

Climactic Niche Model For Overwintering Monarch Butterflies In A Topographically Complex Region Of California, Ashley Fisher, Kiana Saniee, Charis Van Der Heide, Jessica Griffiths, Daniel Meade, Francis X. Villablanca

Biological Sciences

We use climatic conditions that are associated with known monarch butterfly overwintering groves in California to build a Maxent model, and focus on the fine scale probability of overwintering grove occurrence in a topographically complex region of the state (Santa Barbara County). Grove locations are known from recent and historical surveys and a long-term citizen science database. The climatic niche model performs well, predicting that overwintering habitat is most likely to occur along the coast and at low elevations, as shown by empirical data. We then use climatic variables in conjunction with climate change scenarios to model the future location …

Toward Improving Export Diversification And Economic Growth In Small Island Developing States, Marlo B. Murphy-Braynen

USF Tampa Graduate Theses and Dissertations

This dissertation seeks to address the following research question: How does export diversification impact economic growth in Small Island Developing States? More specifically, this dissertation sheds light on the strength and nature of the relationship between export diversification and economic growth with a focus on Small Island Developing States (SIDS). Informed by prior literature and the empirical analysis in this dissertation, I propose a conceptual industry development model that aims to stimulate and promote export development, diversification, and growth within the context of Small Island Developing States in general and with a specific focus on The Bahamas. In accordance with …

Engagement Of Stem And Non-Stem Students: A Comparison Between International And American Undergraduate Students, Reema Panwar

Seton Hall University Dissertations and Theses (ETDs)

The purpose of this study is to understand the relationship between the status and engagement of international students and whether this relationship varies by STEM and non-STEM fields for undergraduate students at American higher education institutions. 2015 NSSE (National Survey of Student Engagement) data was utilized for this study. Ordinary Least Squares (OLS) multiple regression with Huber-White clustered standard errors was used to account for the nested nature of the data at the institutional level, and interaction effect tests were used to analyze whether the relationship between international student status and engagement varies across STEM & non-STEM majors.

This study …

Analysis Of Environment-Marker Associations In American Chestnut, Markus Müller, C. Dana Nelson, Oliver Gailing

Michigan Tech Publications, Part 1

American chestnut (Castanea dentata Borkh.) was a dominant tree species in its native range in eastern North America until the accidentally introduced fungus Cryphonectria parasitica (Murr.) Barr, that causes chestnut blight, led to a collapse of the species. Different approaches (e.g., genetic engineering or conventional breeding) are being used to fight against chestnut blight and to reintroduce the species with resistant planting stock. Because of large climatic differences within the distribution area of American chestnut, successful reintroduction of the species requires knowledge and consideration of local adaptation to the prevailing environmental conditions. Previous studies revealed clear patterns of genetic diversity …

Curricular Changes Proposed For 2019-2021 Morris Catalog Pt. 3, Curriculum Committee

Curriculum Committee Reports

No abstract provided.

The Free Press Vol. 50, Issue No. 09, 11-19-2018, Julie Pike

Free Press, The

Clinical counselors lead workshop on stress and anxiety -- USM pays tribute to veterans in week of events -- Faculty create course to help students after college -- Extraordinary professors receive emeritus status -- New website helps students with finances -- Update from the Student Senate at USM

Defining Landscape-Scale Collaboration As Used To Restore Forests And Reduce Catastrophic Wildfires, Marcelle Elise Dupraw 2512721

The Qualitative Report

In this article, I explore the distinctive characteristics of landscape-scale collaboration in the context of forest resource management in the United States. The United States (US) is experiencing a significant increase in acres burned by wildfire in the wildland-urban interface zone, exacting a heavy toll on human life, health, property, and livelihoods. The US Forest Service’s Collaborative Forest Landscape Restoration (CFLR) Program demonstrates an effective approach to reducing risk of catastrophic wildfire through collaborative forest restoration work at the landscape scale. This is the first in a series of articles building toward a grounded theory to guide development of the …

Efficient Sampling For Ecosystem Service Supply Assessment At A Landscape Scale, Franfisco Javier Ancin-Murguzer, Lorena Muñoz, Christopher Monz, Per Fauchald, Vera Helene Hausner

Environment and Society Faculty Publications

Decision makers and stakeholders need high-quality data to manage ecosystem services (ES) efficiently. Landscape-level data on ES that are of sufficient quality to identify spatial tradeoffs, co-occurrence and hotspots of ES are costly to collect, and it is therefore important to increase the efficiency of sampling of primary data. We demonstrate how ES could be assessed more efficiently through image-based point intercept method and determine the tradeoff between the number of sample points (pins) used per image and the robustness of the measurements. We performed a permutation study to assess the reliability implications of reducing the number of pins per …

Multicentre Pilot Study Evaluation Of Lung Ultrasound For The Management Of Paediatric Pneumonia In Low-Resource Settings: A Study Protocol, Jennifer L. Lenahan, Giovanni Volpicelli, Alessandro Lamorte, Fyezah Jehan, Quique Bassat, Amy Sarah Ginsburg

Department of Paediatrics and Child Health

Introduction:
Pneumonia is the leading infectious cause of death among children under 5 years of age worldwide. However, pneumonia is challenging to diagnose. Lung ultrasound (LUS) is a promising diagnostic technology. Further evidence is needed to better understand the role of LUS as a tool for the diagnosis of childhood pneumonia in low-resource settings.
Methods and analysis:
This study aims to pilot LUS in Mozambique and Pakistan and to generate evidence regarding the use of LUS as a diagnostic tool for childhood pneumonia. Children with cough <14 days with chest indrawing (n=230) and without chest indrawing (n=40) are enrolled. World Health Organization Integrated Management of Childhood Illness assessment is performed at enrolment, along with a chest radiograph and LUS examination. Respiratory and blood specimens are collected for viral and bacterial testing and biomarker assessment. Enrolled children are followed for 14 days (in person) and 30 days (phone call) post-enrolment with LUS examinations performed on Days 2, 6 and 14. Qualitative and quantitative data are also collected to assess feasibility, usability and acceptability of LUS among healthcare providers and caregivers. The primary outcome is LUS findings at enrolment with secondary outcomes including patient outcomes, repeat LUS findings, viral and bacterial test results, and patient status after 14 and 30 days of follow-up.
Ethics and dissemination:
This trial was approved by the Western Institutional Review Board as …

Mapping The Citation Flow Of New York Times Newspaper Indexed In Web Of Science, Angom Jeevan Singh

Library Philosophy and Practice (e-journal)

The objective of the paper is to find out the flow of the New York Times newspaper information in scholarly publication during 2001-2010. New York Times is considered for the present study since it is the most highly cited English newspaper indexed in Web of Science. During the study period there were 13600 records with 14764 citations in different scholarly publications. The citation of the New York Times in scholarly publications increased gradually from 2005 onwards. The study also found that there is gradual increase in citing Byline newspaper information from 2005 onwards in scholarly publications, whereas, there is gradual …

Assessing The Potential For Switchgrass-Based Bioenergy In Missouri: A Geospatial-Based Approach, Gia Nguyen, Pankaj Lal, Erik Lyttek, Pralhad Burli, Taylor Wiezerak

Clean Energy and Sustainability Analytics Center Posters and Presentations

No abstract provided.

A Comparison Of Machine Learning Techniques For Taxonomic Classification Of Teeth From The Family Bovidae, Gregory J. Matthews, Juliet K. Brophy, Maxwell Luetkemeier, Hongie Gu, George K. Thiruvathukal

Faculty Publications

This study explores the performance of machine learning algorithms on the classification of fossil teeth in the Family Bovidae. Isolated bovid teeth are typically the most common fossils found in southern Africa and they often constitute the basis for paleoenvironmental reconstructions. Taxonomic identification of fossil bovid teeth, however, is often imprecise and subjective. Using modern teeth with known taxons, machine learning algorithms can be trained to classify fossils. Previous work by Brophy et al. [Quantitative morphological analysis of bovid teeth and implications for paleoenvironmental reconstruction of plovers lake, Gauteng Province, South Africa, J. Archaeol. Sci. 41 (2014), pp. 376–388] uses …

Enhancing Meaning-Making In Research Through Sensory Engagement With Material Objects, Susan Cox, Marilys Guillemin

The Qualitative Report

There has been increasing awareness and interest in the role of the senses in qualitative research. We build on this work by focusing on the use of material objects in research. Using material objects in qualitative research, particularly those selected by research participants, offers a different kind of engagement that can add richness and complexity to the knowledge generated. Material objects can either be participant-selected or researcher-selected, each having its own benefits and challenges. Using examples, we explore how participants sensorially engage with these objects, using visual, auditory, olfactory, and tactile means. This engagement with material objects, particularly those that …

Risk Factor And High-Risk Place Variations Across Different Robbery Targets In Denver, Colorado, Nathan T. Connealy, Eric L. Piza

Publications and Research

Purpose

Risk Terrain Modeling (RTM) has been effectively used to spatially diagnose risk for crimes such as robbery, aggravated assault, and gun violence. An important contribution is to consider how risk differs across individual crimes and different target types. This study tests four different robbery target types in unique models to examine the potential for variation across significant risk factors and high-risk locations.

Methods

Using the online diagnostic software RTMDx, individual robbery models were run for four robbery target types in Denver, Colorado: commercial (businesses), carjacking (driver/vehicle), residential (home/dwelling), and street (pedestrians). A conjunctive analysis of case configurations was also …

Development And Cost-Effectiveness Of A Malnutrition Screening Program In A Skilled Nursing Setting, Emily Salas-Groves

Master's Theses

Malnutrition increases the cost of healthcare and is commonly unrecognized and untreated. These facts are especially true for healthcare settings that provide care to the elderly. Research emphasizes the need for malnutrition prevention in extended care facilities such as skilled nursing facilities (SNFs) so that patients receive timely and appropriate intervention(s).

The purpose of this study was to retroactively screen SNF patients using four alternative malnutrition screening tools and to compare results to those from the facility screening tool. A second purpose was to estimate differences in potential Medicare reimbursement based on the number of patients identified at risk for …

V. 86, Iss. 9, November 16, 2018

Archway (1946-2020)

No abstract provided.

Improving Strategic It Investment Decisions By Reducing Information Asymmetry, Thomas P. Stablein

USF Tampa Graduate Theses and Dissertations

The unprecedented ubiquity with which technological advancements, such as blockchain, the Internet of things (IoT), big data, machine learning, and artificial intelligence (AI), are impacting the world has forced large organizations to rethink their information technology roadmaps. Their decisions about how they invest in technology have become more important. It is against this backdrop that companies must decide how much to invest in their aging technologies versus these new potentially transformational ones. A decision is only as good as the information available to the decision-makers when they make it. This research project seeks to understand the effects that information asymmetry …

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 …

Organizational Innovations That Stick: Best Practices In Sustainable Organizational Change, Abdoulie Jammeh

USF Tampa Graduate Theses and Dissertations

Organizational change is an essential ingredient of organizational growth/life and can be difficult to accomplish. Many researchers and practitioners have studied the challenges and opportunities surrounding effectuating change and innovation in organizations. However, there has been little practical analysis of the theoretical relationships among the key apparatuses that make change stick, institutionalizing innovation in big bureaucratic organizations. In order to develop practical insights that can inform best practices, this paper aims to provide a collection of successful organizational innovation examples based on responses to a critical incident analysis survey of 12 participants from a 2018 World Bank – USC Annenberg …

Professional Recruitment Experiences Of Community College Transfer Students Pursuing Accounting At Portland State University, Allison J. Davis

University Honors Theses

Accounting students who transfer to Portland State University (PSU) from a community college are inherently disadvantaged by the structure and timing of the professional recruiting process. This systemic disadvantage has been worsened in the past few years due to CPA firms filling the hiring pipeline earlier with sophomore students. Firms extend early internship offers to many sophomores who attend Summer Leadership Programs^[1] and students who choose to take lower-level courses at community colleges are not naturally made aware of this opportunity until they reach PSU and their window of eligibility has passed. This movement towards earlier recruiting diminishes the …

Scenarios For Adoption Of Autonomous Vehicle Technologies In Freight, Sabya Mishra

PSU Transportation Seminars

Innovation adoption research has largely ignored organizational adoption, and little work has been done to understand or predict the adoption of innovations by freight organizations. Among the existing innovation adoption theoretical and methodological approaches this seminar will explore which are most appropriate methods for freight organizational adoption. The seminar will present a disaggregate market penetration model for freight transportation organizations adopting connected autonomous vehicle (CAV) technology and demonstrate an application using a case study area in Memphis, TN. The seminar will highlight ongoing and future organizational adoption research for CAVs, and other innovations.

Project Atlantis: Applied Technology Learning Activities For Non-Traditional Instruction On Space, Jaclyn Wiley, Diane Howard, Samantha Stirmel

Student Research Symposium (SRS)

As commercial and governmental space endeavors increase in number and complexity, the need for people educated in space policy and law will also grow. In order to create this well-educated group of space professionals, a sophisticated space policy and law curriculum is needed. As accessibility of technology increases and more students are becoming digital natives, the importance of non-traditional curriculums increases.

This paper describes an educational experiment in which students in an independent study course created space policy and law educational videos based on topics within the curriculum of an existing undergraduate space law course. Two educational models can be …

Oil Spills Detection By Means Of Uas And Low-Cost Airborne Thermal Sensors, A. Al-Shammari, Eugene Levin, R. Shults

School of Technology Publications

This paper provides an overview of oil spill scenarios and the remote sensing methods used for detection and mapping the spills. It also discusses the different kinds of thermal sensors used in oil spills detection. As UAS is becoming an important player in the oil and gas industry for the low operating costs involved, this research involved working with a cheap thermal airborne sensor mounted on DJI Phantom 4 system. Data were collected in two scenarios, first scenario is collecting data in Michigan’s Upper Peninsula at a petroleum company location and the second scenario was an indoor experiment simulating an …

Advances In Automotive Conversion Coatings During Pretreatment Of The Body Structure: A Review, Mark Doerre, Larry Hibbitts, Gabriela Patrick, Nelson K. Akafuah

Institute of Research for Technology Development Faculty Publications

Automotive conversion coatings consist of layers of materials that are chemically applied to the body structures of vehicles before painting to improve corrosion protection and paint adhesion. These coatings are a consequence of surface-based chemical reactions and are sandwiched between paint layers and the base metal; the chemical reactions involved distinctly classify conversion coatings from other coating technologies. Although the tri-cationic conversion coating bath chemistry that was developed around the end of the 20th century remains persistent, environmental, health, and cost issues favor a new generation of greener methods and materials such as zirconium. Environmental forces driving lightweight material selection …

November 2018 Academic Affairs Minutes, University Of Nebraska At Kearney Academic Affairs Committee

Academic Affairs Committee Minutes

No abstract provided.