Digital Commons Network^™

Lassa Virus Circulating In Liberia: A Retrospective Genomic Characterisation, Michael R. Wiley, Lawrence S. Fakoli, Andrew G. Letizia, Stephen R. Welch, Jason T. Ladner, Karla Prieto, Daniel Reyes, Nicole Espy, Joseph A. Chitty, Catherine B. Pratt, Nicholas Di Paola, Fahn Taweh, Desmond Williams, Jon Saindon, William G. Davis, Ketan Patel, Mitchell Holland, Daniel Negrón, Ute Ströher, Stuart T. Nichol, Shanmuga Sozhamannan, Pierre E. Rollin, John Dogba, Tolbert Nyenswah, Fatorma Bolay, César G. Albariño, Mosoka Fallah, Gustavo Palacios

University of Nebraska's National Strategic Research Institute: Publications

Background An alarming rise in reported Lassa fever cases continues in west Africa. Liberia has the largest reported per capita incidence of Lassa fever cases in the region, but genomic information on the circulating strains is scarce. The aim of this study was to substantially increase the available pool of data to help foster the generation of targeted diagnostics and therapeutics.

Methods Clinical serum samples collected from 17 positive Lassa fever cases originating from Liberia (16 cases) and Guinea (one case) within the past decade were processed at the Liberian Institute for Biomedical Research using a targeted-enrichment sequencing approach, producing …

Evidence Of Limited Recruitment Of Pallid Sturgeon In The Lower Missouri River, Kirk D. Steffensen, Kimberly Chojnacki, Jeffrey A. Kalie, Meredith L. Bartron, Edward J. Heist, Kyle R. Winders, Nathan C. Loecker, Wyatt J. Doyle, Timothy L. Welker

United States Geological Survey: Staff Publications

Pallid Sturgeon Scaphirhynchus albus are endemic to the Missouri and Mississippi river basins and are rare throughout their range. The species was listed as federally endangered with little to no evidence of natural recruitment. Since population augmentation was initiated as a recovery objective in the early 1990s, thousands of hatchery-origin Pallid Sturgeon have been stocked in the lower Missouri River (Gavins Point Dam [river kilometer 1,305.1] to the confluence of the Mississippi River [river kilometer 0.0]). Efforts to discriminate natural reproduction and recruitment of wild-origin Pallid Sturgeon from hatchery-origin fish has been hampered by tag loss in hatchery-origin sturgeon, inconsistent …

Human-Carnivore Relations: Conflicts, Tolerance And Coexistence In The American West, Juan M. Requena-Mullor

Biology Faculty Publications and Presentations

Carnivore and humans live in proximity due to carnivore recovery efforts and ongoing human encroachment into carnivore habitats globally. The American West is a region that uniquely exemplifies these human-carnivore dynamics, however, it is unclear how the research community here integrates social and ecological factors to examine human-carnivore relations. Therefore, strategies promoting human-carnivore coexistence are urgently needed. We conducted a systematic review on human-carnivore relations in the American West covering studies between 2000 and 2018. We first characterized human-carnivore relations across states of the American West. Second, we analyzed similarities and dissimilarities across states in terms of coexistence, tolerance, number …

Oil Preference In Ants And Arthropod Diversity In Urban Environments, Itzel Guzman-Hernandez

Honors Theses

The success of certain ant species in urban areas is largely unknown. Available food in the environment could affect the composition of ants in urban areas due to a possible relationship between ant physiology and diet. I tested the oil preference of ants as a function of available arthropod prey in urban environments. I hypothesized that as arthropod diversity decreased, ant abundance at oil baits would decrease. Oil is an important nutrient that can affect ant body functions and activities. Ant foraging activities have been found to be affected by lipid depletion. A food source where ants can obtain oil …

Massachusetts Community Center Grant Program: Fiscal Year 2019 Report & Evaluation, Kaila O. Eisenkraft

Massachusetts Office of Public Collaboration Publications

In Fiscal Year 2019, the Community Mediation Center Grant Program, administered by the Massachusetts Office of Public Collaboration and funded through a legislative appropriation, continued to make progress in implementing its mission to increase public access to community mediation in Massachusetts. Operational funds were awarded to 12 community mediation centers that handled over 4,000 cases involving an estimated 8,000 parties, who hailed from cities and towns throughout the commonwealth and were racially/ethnically and financially diverse. The cases that were mediated resulted in a 72.7% agreement rate.

Beating The Odds: An Exploration Of The Lived School Experiences Of New York City Alternative High School Graduates, Edrick R. Johnson

Education Doctoral

The high school graduation rate in New York City has increased approximately 25% over the last 10 years (New York Department of Education, 2019). While there have been improvements in the graduation rates, approximately 30% of NYC high school students do not graduate within the 4-year timeframe. The purpose of this qualitative narrative inquiry study was to explore the perceptions and experiences of recent NYC alternative high school graduates related to the Framework for Great Schools’ three elements of trust, supportive environment, and strong family/community ties (NYCDOE, 2019).The research data was captured through in-depth semi-structured interviews. The data was analyzed …

Improving Diabetic Foot Screening In A Primary Care Clinic For Homeless Adults: A Quality Improvement Project, Theresa Causa

Doctor of Nursing Practice

The purpose of this project was to increase the adherence of clinic providers at the homeless primary care clinic by implementing the American Diabetes Association Clinical Guidelines for the evaluation and management of Type 2 diabetes with foot care. Type 2 diabetes is a chronic condition that affects 13% of the Texas adult population (Centers for Disease Control and Prevention, 2014). The homeless person's main method of transportation is walking. The complications of undiagnosed foot problems include reduced mobility, pain, lower limb amputations, and difficulty controlling chronic diseases including diabetes and depression. Provider responsibilities include screening for diabetes in all …

An Evidence-Based Intervention To Reduce The Use Of Physical Restraints In A Female Adolescent Population At An Inpatient Psychiatric Unit, Mambo Ndingwan

Doctor of Nursing Practice

The use of physical restraints within psychiatric units is problematic since it raises a range of legal, ethical, and clinical questions (American Psychiatric Nurses Association, 2014). The use of physical restraint has become a common practice in many psychiatric units despite the negative effects associated with its use. Selecting strategies such as verbal de-escalation to manage aggressive psychiatric inpatients shows promise with patients when used by providers and staff in mental health facilities. The purpose of this evidence-based project was to introduce and train staff to utilize the Modified Overt Aggression Scale (MOAS) and verbal de-escalation in psychiatric units in …

A Descriptive Study Of Religious Engagement And The Internalization Of Religious Beliefs Of 12th-Grade High-School Students Who Attended Kairos Retreats And Fourth-Day Follow-Up Activities As Juniors In Five U.S. Jesuit All-Male High Schools, Chris Miller

Doctoral Dissertations

The Kairos retreat is popular among upperclassmen at Jesuit high schools across the nation. Kairos, or “God’s Time,” is a religious retreat grounded in Christian incarnational theology and the overall theology of the retreat is love in action, and its participants are challenged to “live the fourth” day, which becomes the never-ending day. Even though there has been a trend across the nation in the first decade of the 21st century within Jesuit high schools to move the retreat to the junior level, there is no empirical research examining the spiritual effects on the individual student of moving the Kairos …

Efficient Meta Learning Via Minibatch Proximal Update, Pan Zhou, Xiao-Tong Yuan, Huan Xu, Shuicheng Yan, Jiashi Feng

Research Collection School Of Computing and Information Systems

We address the problem of meta-learning which learns a prior over hypothesis from a sample of meta-training tasks for fast adaptation on meta-testing tasks. A particularly simple yet successful paradigm for this research is model-agnostic meta-learning (MAML). Implementation and analysis of MAML, however, can be tricky; first-order approximation is usually adopted to avoid directly computing Hessian matrix but as a result the convergence and generalization guarantees remain largely mysterious for MAML. To remedy this deficiency, in this paper we propose a minibatch proximal update based meta-learning approach for learning to efficient hypothesis transfer. The principle is to learn a prior …

Neural Network Classification Of Brainwave Alpha Signalsin Cognitive Activities, Ahmad Azhari, Adhi Susanto, Andri Pranolo, Yingchi Mao

Knowledge Engineering and Data Science

The signal produced by human brain waves is one unique feature. Signals carry information and are represented in electrical signals generated from the brain in a typical waveform. Human brain wave activity will always be active even when sleeping. Brain waves will produce different characteristics in different individuals. Physical and behavioral characteristics can be identified from patterns of brain wave activity. This study aims to distinguish signals from each individual based on the characteristics of alpha signals from brain waves produced. Brain wave signals are generated by giving several mental perception tasks measured using an Electroencephalogram (EEG). To get different …

Optimisation Of Rice Fertiliser Composition Using Genetic Algorithms, Retno Dewi Anissa, Wayan Firdaus Mahmudy, Agus Wahyu Widodo

Knowledge Engineering and Data Science

There are so many problems with food scarcity. One of them is not too good rice quality. So, an enhancement in rice production through an optimal fertiliser composition. Genetic algorithm is used to optimise the composition for a more affordable price. The process of genetic algorithm is done by using a representation of a real code chromosome. The reproduction process using a one-cut point crossover and random mutation, while for the selection using binary tournament selection process for each chromosome. The test results showed the optimum results are obtained on the size of the population of 10, the crossover rate …

Comparison Of Indonesian Imports Forecastingby Limited Period Using Sarima Method, Harits Ar Rosyid, Mutyara Whening Aniendya, Heru Wahyu Herwanto

Knowledge Engineering and Data Science

The development of Indonesia's imports fluctuate over years. Inability to anticipate such rapid changes can cause economic slump due to inappropriate policy. For instance, recent years imports in rice led to the extermination of rice reserves. The reason is to maintain the market price of rice in Indonesia. To overcome these changes, forecasting the amount of imports should assist the Government in determining the optimum policy. This can be done by utilizing an algorithm to forecast time series data, in this case the amount of imports in the next few months with a high degree of accuracy. This study uses …

Happy Toilet: A Social Analytics Approach To The Study Of Public Toilet Cleanliness, Eugene W. J. Choy, Winston M. K. Ho, Xiaohang Li, Ragini Verma, Li Jin Sim, Kyong Jin Shim

Research Collection School Of Computing and Information Systems

This study presents a social analytics approach to the study of public toilet cleanliness in Singapore. From popular social media platforms, our system automatically gathers and analyzes relevant public posts that mention about toilet cleanliness in highly frequented locations across the Singapore island - from busy shopping malls to food 'hawker' centers.

Regulations And Brain Drain: Evidence From Wall Street Star Analysts’ Career Choices, Yuyan Guan, Congcong Li, Hai Lu, Franco Wong

Research Collection School Of Accountancy

The Global Settlement, along with related regulations in the early 2000s, prohibits the use of investment banking revenue to fund equity research and compensate equity analysts. We find that all-star analysts from investment banks are more likely to exit the profession or move to the buy side after the regulations. The departed star analysts’ earnings revisions and stock recommendations are more informative than those of the remaining analysts who followed the same companies. To the extent that star analysts are superior to their nonstar counterparts in terms of research ability and ability to inform the market, the exit of star …

The Information Disclosure Trilemma: Privacy, Attribution And Dependency, Ping Fan Ke

Research Collection School Of Computing and Information Systems

Information disclosure has been an important mechanism to increase transparency and welfare in various contexts, from rating a restaurant to whistleblowing the wrongdoing of government agencies. Yet, the author often needs to be sacrificed during information disclosure process – an anonymous disclosure will forgo the reputation and compensation whereas an identifiable disclosure will face the threat of retaliation. On the other hand, the adoption of privacy-enhancing technologies (PETs) lessens the tradeoff between privacy and attribution while introducing dependency and potential threats. This study will develop the desirable design principles and possible threats of an information disclosure system, and discuss how …

Online Content Consumption: Social Endorsements, Observational Learning And Word-Of-Mouth, Qian Tang, Tingting Song, Liangfei Qiu, Ashish Agarwal

Research Collection School Of Computing and Information Systems

The consumption of online content can occur through observational learning (OL) whereby consumers follow previous consumers’ choices or social endorsement (SE) wherein consumers receive content sharing from their social ties. As users consume content, they also generate post-consumption word-of-mouth (WOM) signals. OL, SE and WOM together shape the diffusion of the content. This study examines the drivers of SE and the effect of SE on content consumption and post-consumption WOM. In particular, we compare SE with OL. Using a random sample of 8,945 new videos posted on YouTube, we collected a multi-platform dataset consisting of data on video consumption and …

Examining The Theoretical Mechanisms Underlying Health Information Exchange Impact On Healthcare Outcomes: A Physician Agency Perspective, Fang Zhou, Qiu-Hong Wang, Hock Hai Teo

Research Collection School Of Computing and Information Systems

Health information exchange (HIE) is presumed to reduce medical costs by facilitating information sharing across healthcare providers. Existing studies focused on different medical costs or one set of costs, and resulted in mixed findings. We examine the effects of patient access to HIE on two of the most important medical costs of a hospitalization episode - test costs and medication costs - through a natural experiment and the discharge data of a hospital. Besides the negative direct effect of access to HIT on tests costs, we also find its positive spillover effect on medication costs, such that more patients having …

Influence, Information And Team Outcomes In Large Scale Software Development, Subhajit Datta

Research Collection School Of Computing and Information Systems

It is widely perceived that the egalitarian ecosystems of large scale open source software development foster effective team outcomes. In this study, we question this conventional wisdom by examining whether and how the centralization of information and influence in a software development team relate to the quality of the team's work products. Analyzing data from more than a hundred real world projects that include development activities over close to a decade, involving 2000+ developers, who collectively resolve more than two hundred thousand defects through discussions covering more than six hundred thousand comments, we arrive at statistically significant evidence indicating that …

Mayan Languages Education And Technology: A Case Study Of Kaqchikel And K’Iche’ Educators In Guatemala, Hector Palala

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

The purpose of this qualitative study was to describe and analyze how Mayan language instructors in the Faculty of Humanities at the Universidad de San Carlos de Guatemala use technology in their classrooms. In this research, indigenous professors shared their experiences as Kaqchikel and K’iche’ language instructors at the higher education level. A narrative qualitative case study was applied to discover the practices and insights of two Kaqchikel Mayan language instructor and one K’iche’ Mayan language instructor by addressing the following questions: (1) How do the professors use technology while teaching IDI3 Mayan Language in the Faculty of Humanities at …

A Performer's Analysis Of The Compositional Approaches In Short Stories For Saxophone Quartet By Jennifer Higdon, Nicholas J. Stow

Glenn Korff School of Music: Dissertations, Theses, Student Creative Work, and Performances

The purpose of this document is to further the saxophonist’s understanding of Short Stories (1996) for saxophone quartet by Jennifer Higdon. By connecting biographical information with a thorough analysis including a commentary on programmatic influences, the saxophonist can gain a greater awareness of the context surrounding the piece and successfully portray important compositional elements inherent in the work.

Jennifer Higdon is one of the most respected classical composers of the early 21st Century, gaining acclaim through a continually expanding catalogue of works that include operatic, orchestral, choral, and chamber compositions. As a two-time Grammy and Pulitzer Prize awardee, Higdon’s music …

Formal Modeling And Analysis Of A Family Of Surgical Robots, Niloofar Mansoor

School of Computing: Dissertations, Theses, and Student Research

Safety-critical applications often use dependability cases to validate that specified properties are invariant, or to demonstrate a counterexample showing how that property might be violated. However, most dependability cases are written with a single product in mind. At the same time, software product lines (families of related software products) have been studied with the goal of modeling variability and commonality and building family-based techniques for both modeling and analysis. This thesis presents a novel approach for building an end to end dependability case for a software product line, where a property is formally modeled, a counterexample is found and then …

Student Perception Data And Its Impact On Teachers, Erica R. Walker-Arnold

Department of Educational Administration: Dissertations, Theses, and Student Research

For as long as there have been teachers, there have been efforts to determine the most constructive way to evaluate teacher effectiveness. Research has shown that traditional administrator evaluations do little to improve struggling teachers and that most teachers nationwide are able to earn satisfactory ratings even when they are not performing in a satisfactory manner. This study aims to determine whether using student perception feedback as part of a comprehensive teacher evaluation process would lead to improved practice and targeted professional development. The following questions were investigated in this research: 1. Does student perception feedback drive teachers to reflect …

Uncommon Corps: A Transcendental Phenomenology Of The Academic Experiences Of Military-Connected High School Students Transitioning Between States, Norman Eugene Solomon

Doctoral Dissertations and Projects

Although nearly 1.1 million military-connected students attend public schools throughout the United States, few research studies have examined how transitions related to military mobility requirements affect this unique group of students from the perspective of the students. More often than not, researchers have examined phenomena related to military-connected students and their transitional experiences from the perspectives of parents, teachers, school administrators, or stakeholders other than the military-connected student. The purpose of this transcendental phenomenological study is to describe, from the perspective of the students, the academic experiences of military-connected high school students who transition to different states. Working closely with …

Virtual Classes: A Comparative Study On The Overall Effect Of Virtual Science Classes On High School Students' Course Grade, Melinda Lee Maier

Doctoral Dissertations and Projects

Due to the rapid growth of technology and implementation of virtual learning into the lives of students, there is a push for the evaluation of virtual educational programs. The purpose of this quantitative, causal-comparative study was to compare the impact of traditional, face-to-face instruction and virtual instruction on students’ course grades. The sample included 272 high school students in Florida; 125 students were enrolled in a virtual honors-level course and 147 students were enrolled in a traditional, face-to-face honors-level course. The students were enrolled in honors biology, chemistry, or physics. The theories guiding this study were social learning theory, self-determination …

The Effects Of Hands-On Equations On Math Achievement Of Ninth Grade Students, Chauncey Andrice Scott

Doctoral Dissertations and Projects

Each year, ninth-grade students across the United States of America fail to meet the national standards in mathematics. Students struggle to grasp the concepts needed to produce correct answers to math problems. Ninth grade students with disabilities, especially in the southeastern region of the United States, consistently fail the math portion of the Georgia Milestones Test. As a response to this problem in Georgia, Hands-On Equations by Henry Borenson represents a possible solution for many students failing to meet the standard in ninth grade mathematics. The purpose of this quantitative causal-comparative study was to examine the difference between the mathematics …

A Phenomenological Study Of Early Resignation Among Southern Territory Salvation Army Officers, Everette F. Platt

Doctoral Dissertations and Projects

The purpose of this transcendental phenomenological study was to understand early resignation of Salvation Army officers in the Southern Territory by investigating their lived experiences with the phenomenon. The theories guiding this study were role identity, as it explains the differences in perceptions and actions that accompany a role and emotional intelligence (EI), which refers to a generic competence in perceiving emotions, both in oneself and in others. The central research question addressed how former Salvation Army officers in the Southern Territory perceive that their officership experiences impacted their decision to resign early. The subquestions for this study addressed (a) …

Compassionate Divorce Recovery For Christian Women, Alice Drusilla Hoag

Doctoral Dissertations and Projects

Depression, anxiety, anger, and guilt causes significant distress for 70% of divorcees, typically lasting upwards of two years, while 15-30% report more devastating and life-altering distress for the rest of their lives. Christians divorcees have the added shame of spiritual failure, leading to an increased sense of judgment and isolation from their worship communities. Self-compassion is an attitude toward oneself comprised of self-kindness, common humanity, and mindfulness, and has been shown to reduce depression, anxiety, shame, stress, and social isolation. To date, there are no published divorce recovery programs specifically tailored for Christians utilizing self-compassion techniques. This quasi-experimental study analyzed …

How A School Leader Creates A Successful Dropout Prevention Program: A Case Study, Alan J. Sorensen

Doctoral Dissertations and Projects

The purpose of this single instrumental case study was to understand how a school leader develops policies and programs that create a successful dropout prevention program. The three theories used in this study included constructivism (how people learn), social-cognitive learning theory (how people think, feel, and behave influences their ability to learn), and attribution theory (how people interpret and explain behavior). The central question and subquestions of this study revolved around how administrators and teachers perceive a school leader develops policies and programs that create a successful dropout prevention program. Data collection included documents, testimonies written by graduates, individual interviews, …

Increasing Asymptomatic Chlamydia Screening In The Ed, Mikyung Kim

Doctoral Dissertations and Projects

The Centers for Disease Control and Prevention (CDC) recommends chlamydia screening in young women and others who are at risk based on scientific evidence related to the effectiveness of screening to prevent chlamydial infection. Female patients may visit the emergency department (ED) with symptoms such as urethritis, abdominal pain, or vaginal spotting. For men, most complaints are urinary problems, discharge from the penis, and testicular pain. However, most infected patients are never symptomatic and have no abnormal physical findings. Therefore, the question that spurred this project was, “Why aren’t asymptomatic patients screened more often?” Furthermore, “Why are the CDC screening …