Digital Commons Network^™

Early Detection Of Fake News On Social Media, Yang Liu

Dissertations

The ever-increasing popularity and convenience of social media enable the rapid widespread of fake news, which can cause a series of negative impacts both on individuals and society. Early detection of fake news is essential to minimize its social harm. Existing machine learning approaches are incapable of detecting a fake news story soon after it starts to spread, because they require certain amounts of data to reach decent effectiveness which take time to accumulate. To solve this problem, this research first analyzes and finds that, on social media, the user characteristics of fake news spreaders distribute significantly differently from those …

Investigation Of Small-Scale Energy Release And Transfer Processes In The Solar Atmosphere With High-Resolution Observations In Infrared, Xu Yang

Dissertations

Solar spectrum in the infrared (IR) contains abundant information of solar activities, however, it has not spectral lines in the solar IR spectrum provide different tools to probe the solar atmosphere in various heights. This radiation band in such relatively long wavelength includes various atom and molecule spectral lines that are generated by relatively small energy level transitions. The temperature-sensitive and highly dynamic spectral lines could reveal the energy transmission process more easily than those in the visible wavelength of solar emission. Moreover, the better magnetic sensitivities for the infrared lines resulting from their longer wavelength make them detect the …

Topics On High Dimensional Selective Inference, Yan Zhang

Dissertations

In such applications as identifying differentially expressed genes in micro-array experiments or assessing safety and efficacy of drugs in clinical trials, researchers often report confidence intervals (CIs) and p-values only for the selected parameters, which is called selective inference. While constructing multiple CIs for the selected parameters, it is common practice to ignore issue of selection and multiplicity. Although protection against the effect of selection is sufficient in some cases, simultaneous coverage should be also needed in real applications. For example, in clinical trials, multiple endpoints are considered to assess effects of a drug and the ultimate decision often depends …

Cancer Risk Prediction With Whole Exome Sequencing And Machine Learning, Abdulrhman Fahad M Aljouie

Dissertations

Accurate cancer risk and survival time prediction are important problems in personalized medicine, where disease diagnosis and prognosis are tuned to individuals based on their genetic material. Cancer risk prediction provides an informed decision about making regular screening that helps to detect disease at the early stage and therefore increases the probability of successful treatments. Cancer risk prediction is a challenging problem. Lifestyle, environment, family history, and genetic predisposition are some factors that influence the disease onset. Cancer risk prediction based on predisposing genetic variants has been studied extensively. Most studies have examined the predictive ability of variants in known …

Identifying The Leadership Skills Needed To Develop The Competencies To Lead In A Postcrisis Organization: A Delphi Study, Paul Turgeon

Dissertations

Purpose: Organizational leaders play a pivotal role in postcrisis activities. There is abundant research in the actions of leaders in a crisis; however, there is limited research regarding the leadership competencies required postcrisis, and a gap remains in knowing which leadership skills are needed postcrisis. The purpose of this Delphi study was to identify the leadership skills needed to promote organizational resilience, to act with integrity, and to possess a learning orientation of organizational leaders in the postcrisis phase.

Methodology: This study used a 3-round Delphi technique to identify the leadership skills that support the possession of the competencies needed …

Educator Knowledge And Usage Of Evidence-Based Interventions For Students With Emotional And Behavioral Disorders In Special Education Programs Across California, Thelmisha Vincent

Dissertations

Purpose: The purpose of this study was to identify the extent to which evidence-based interventions being utilized with students with emotional and behavioral disorders (EBD) by general education teachers, special education teachers, and behavior interventionists working in K-12 special education programs on comprehensive public and non- public school campuses in California.

Methodology: This mixed method study identified commonly used instructional strategies for students with (EBD) in public and non-public school settings. Respondents were purposefully chosen from general education teachers, special education teachers, and behavior interventionists across California. The data from online survey and interviews were analyzed through factorial ANOVA, descriptive …

The Effects Of Health Beliefs, Acculturation, And A Culturally Appropriate Teaching Intervention On Parents' Knowledge Of And Compliance With Tuberculosis Treatment In A Mexican-American Population: A Preliminary Analysis, Renee P. Mcleod

Dissertations

The primary purpose of this research study, using a correlational and comparative descriptive design, was to examine the effects of health beliefs, acculturation, and a culturally appropriate Spanish-language audiotaped novena on knowledge of Tuberculosis (TB), and compliance with treatment and medications in Mexican-American parents' of a child with TB infection. Due to the limited number of subjects obtained (N = 31), the research data and analyses are presented as preliminary findings since meaningful hypothesis testing would be premature at this time.

Character And Ethical Behavior Of Nurses, Nelda S. Godfrey

Dissertations

The purpose of this study was to examine relationships among personal normative characteristics, personal descriptive characteristics, and ethical behavior of nurses in practice. Little is known about the place of virtue theory in nursing practice and the factors that influence the nurse as moral agent. One hundred thirty-one registered nurses with at least six months' experience working in direct cam positions in one of three hospital practice settings—urban, suburban, and rural—participated in the study. Three instruments were used with the randomized sample: (a) Demographic Data Form, (b) The INSURE Survey™, an instrument used to measure attitudes of potential employees, and …

Exemplary Human Resources Administrators Leading Through Storytelling, Colleen Slattery

Dissertations

Purpose: The purpose of this phenomenological study was to understand and describe how exemplary human resources administrators use storytelling to lead organizations using Denning’s (2011) model. In addition, it was the purpose to understand how they use storytelling to create transformational change. Denning’s The Leader’s Guide to Storytelling highlights eight storytelling narrative patterns: to ignite action and implement new ideas, build trust, build your organizations’ brand, transmit organizational values, foster collaboration, share knowledge, neutralize rumor, and create and share vision.

Methodology: This phenomenological qualitative study described the lived experiences of exemplary human resources administrators in Northern California. The researcher was …

Pain And Postoperative Health-Related Quality Of Life In Inguinal Hernia Patients, Cheryl B. Rowder

Dissertations

The purpose of this study was to explore the relationship between selected variables (i.e., pain issues, hernia characteristics, and personal attributes) and postoperative health-related quality of life in inguinal hernia patients. This study identified preoperative variables predictive of lower postoperative health-related quality of life. The study entailed non-experimental retrospective analyses of variables generated during an ongoing longitudinal cooperative clinical study to examine patient outcomes after inguinal hernia repair. Fourteen Veterans Affairs Medical Centers in the continental United States participated in the study. Data were collected from eligible participants upon entry into the project and at 3 months post-surgery. The sample …

Using Machine Learning Classification Methods To Detect The Presence Of Heart Disease, Nestor Pereira

Dissertations

Cardiovascular disease (CVD) is the most common cause of death in Ireland, and probably, worldwide. According to the Health Service Executive (HSE) cardiovascular disease accounting for 36% of all deaths, and one important fact, 22% of premature deaths (under age 65) are from CVD.

Using data from the Heart Disease UCI Data Set (UCI Machine Learning), we use machine learning techniques to detect the presence or absence of heart disease in the patient according to 14 features provide for this dataset. The different results are compared based on accuracy performance, confusion matrix and area under the Receiver Operating Characteristics (ROC) …

Assessment Of Validity And Reliability Of A Neurophysiologic Evoked Potential Instrument, Wanda O. Wilson

Dissertations

The purpose of this study was to determine the validity of a step by step non-simultaneous method for measuring somatosensory evoked potentials (SSEPs) and to determine reliability of a neurophysiologic evoked potential instrument, Bio-logic Evoked Potential System, on healthy, adult volunteers in a controlled environment. The neurophysiologic monitoring during anesthesia and surgery is used to optimize surgical outcomes and minimize neurologic morbidity. During surgery, the anesthetic regimen and subject variables can affect the electrical signals of neurophysiologic monitoring. The neurophysiologic instrument has an important role in the successful monitoring of the central nervous system. The research questions were: (1) What …

Integrating Patient Safety In Nursing Education: An Analysis Of Pre-Registration Nursing Curricula In Kenya, Nickcy Nyaruai Mbuthia

Dissertations

The purpose of this research was to investigate the extent to which patient safety concepts were integrated in the Kenyan pre-registration Bachelor of Science in nursing curriculum, and to understand the issues that influence its delivery in the classroom and clinical settings, with the aim of developing strategies that will enhance the integration of patient safety concepts in the curriculum. In the first phase, a qualitative content analysis of the nursing curriculum documents was performed.

Factor Analysis Of Mixed Data (Famd) And Multiple Linear Regression In R, Nestor Pereira

Dissertations

In the previous projects, it has been worked to statistically analysis of the factors to impact the score of the subjects of Mathematics and Portuguese for several groups of the student from secondary school from Portugal.

In this project will be interested in finding a model, hypothetically multiple linear regression, to predict the final score, dependent variable G3, of the student according to some features divide into two groups. One group, analyses the features or predictors which impact in the final score more related to the performance of the students, means variables like study time or past failures. The second …

Exploring Student And Faculty Perceptions Regarding The Availability Of On-Campus Counseling Services, Stephen Wade Baker

Dissertations

This study sought to explore undergraduate and faculty perceptions about oncampus counseling services. On-campus counseling services for clarification purposes, could be understood as a behavioral health service used by undergraduate students to discuss and address identified personal issues during a semester-based academic school year. The data was collected via a written response survey and it was administered at a private Midwestern university throughout the spring, summer, and fall traditional undergraduate semesters of 2018. The study looked to understand students’ perceptions on the overall need and functionality of the current counseling services promoted at their university. Furthermore, faculty interviews were conducted …

Factors Associated With Behavioral Symptoms In Persons With Dementia Residing In Assisted Living, Julie L. Ellis

Dissertations

Factors associated with behavioral symptoms among persons with dementia residing in assisted living were investigated in this study using a descriptive, correlational design with a cross-sectional methodology. The purposes of the research were to (a) describe the extent of pain, depression, co-morbid conditions, function and behavioral symptoms in a sample of residents with dementia in assisted living and (b) identify the relationship between the of factors pain, depression, co-morbid conditions, and function to the extent of behavioral symptoms in the sample.

White (Non-Hispanic) Nurse Practitioner Student Perceptions Of Hispanic Patients, Rose Iris Gonzalez

Dissertations

As the United States continues to become increasingly more diverse, the health care industry must adjust and develop improved strategies for the effective provision of health care services to all. The Hispanic population is the fastest growing minority group in the United States. This population (ethnic group) faces many challenges to receiving adequate health care including: stereotyping by health professionals; language and cultural barriers; limited access to health care; and a lack of trust in the current health care system. Hispanic patients are frequently met by predominantly White (non-Hispanic) health care practitioners, who bring their own set of biases and …

Developing A Scale To Measure Responses Of Clients With Actual Or Potential Myocardial Infarctions, Karen Rae Robinson

Dissertations

An assumption in Modeling and Role-Modeling theory is that meeting instinctive needs promotes growth and development across the life span (Erickson, Tomlin, & Swain, 1988). The need for object attachments is one type of need. Loss of an attachment results in the grief process with denial and shock as the first stage. For the coronary client, an acute episode of chest pain may threaten the loss of an attachment object (one's heart function). Determining a coronary client's level of denial is important data and is needed before the nurse can develop individualized interventions to facilitate the client's adaptation. The purpose …

The Impact Of A Competitive Healthcare Environment On Cost And Quality, Maureen E. Buckley

Dissertations

A descriptive longitudinal (1988-1993) case study design, with the Resource Dependence Theory as the conceptual framework, was used to investigate the effect of a competitive health care market on the cost and quality of hospital care. The secluded geographic area in which the three study hospitals were located served to minimize the influence of additional competitors. The Resource Dependence theory emphasizes the adaptation of an organization to changes in the environment or competitive market.

Using Pbis Frameworks In Elementary Schools To Decrease Chronic Absenteeism, Joe Nelson

Dissertations

This basic qualitative study examined the beliefs and attitudes of selected faculty in three southern region schools that had been identified by several government agencies as having severe chronic attendance problems. Twelve educators who work closely with the daily Positive Behavior Intervention and Support (PBIS) program were individually interviewed and re-interviewed until reaching a significant point where no new knowledge could be derived. The goal of the study was to explore the essence of the teachers’ experiences when using the PBIS practices in order to increase school attendance and reduce chronic absenteeism. The purpose of the study was to fully …

The Economic Impacts Of Casino Gaming In Mississippi: Local, Regional, National And International Considerations, Janelle Townes

Dissertations

Casino development and the proliferation of the casino gaming industry has centered on the prevailing issue of economic impact. The purpose of this study was to determine what impact casinos in Mississippi have on the economy of the host communities. In this quantitative descriptive research study, the primary employment, tourism and revenue data were gathered from records provided by the Mississippi Gaming Commission to test the level of change that occurred in the host communities of Mississippi casinos between 2000 and 2015, a period when Mississippi communities experienced severe economic crises due in part to natural diseasters and economic recession. …

Digital Literacy Among Teachers: Identifying Digital Divide Among Interactive Whiteboard Users In Public High Schools, Tammy R. Oatis

Dissertations

Since No Child Left Behind Act pressure has been placed on teachers for higher achievements and accountability. Teachers are required to balance learning and integrating new technology into their curriculum, but not all teachers are. In order for teachers’ to learn how to successfully integrate new technology, they must be motivated to use new technology. This study examines the roles of digital literacy in high schools in order to identify digital divides among Digital Immigrant and Digital Native teachers who teach grades 9^th through 12^th that adopt or choose not to adopt the use IWB. This study investigates …

The Histoplasma Capsulatum Ddr48 Gene Is Required For Survival Within Macrophages And Resistance To Oxidative Stress And Antifungal Drugs, Logan Blancett

Dissertations

Histoplasma capsulatum(Hc)is a systemic, dimorphic fungal pathogen that affects upwards of 500,000 individuals in the United States annually. Hc grows as a multicellular mold at environmental temperatures; whereas, upon inhalation into a human or other mammalian host, it transforms into a unicellular, pathogenic yeast. The research presented in this dissertation is focused on characterizing the DNA damage-responsive gene HcDDR48. HcDDR48was originally isolated via a subtractive DNA library enriched for transcripts enriched in the mold-phase of Hcgrowth. Upon further analysis we found that HcDDR48is not just expressed in the mold morphotype, but both growth programs …

Strategic Hiring And Research Productivity At U.S. Research Universities, David S. Mooneyhan

Dissertations

Research universities provide new knowledge that advance technology and links the United States’ science and knowledge system with the world (Altbach, 2011). Public research universities play a significant role in regional and national economic development. Universities rely on funding from multiple sources to operate effectively. However, in recent years, public research universities in the United States have experienced declines in state funding (Hyman & Jacobs, 2010; Webber, 2017).

To offset declines in funding, public research universities may seek to increase research productivity through the hiring of faculty to address strategic institutional research goals. Strategic hiring is one approach used by …

Social Media, Journalism And Crisis: Twitter Representation Of #Syrianrefugees In Western News Media, Ahmad Khaled Alshallal

Dissertations

Generally, there have been conflicts in the world regarding media coverage especially on #SyrianRefugees in Western media. It is undebatable that the Western states have political stability and peace; thus, they remain better hosts for asylum seekers and other refugees who come in search of greener pastures. However, current trends have hindered such countries from being ideal hubs because citizens have basic fears including those related to national security. Refugee situations have attracted lots of controversies over the years to the point that the concern is evident in the media. This dissertation explores the crisis of Syrian refugees and the …

Authenticity And Practicality: Evaluating And Performing Multicultural Choral Music, Jesse Noote

Dissertations

Many choral music educators believe that multicultural music is a vital part of any choral curriculum. However, the research shows that these same choral directors are reluctant to select multicultural octavos because they lack training in non-Western music, which prevents them from effectively teaching and performing this music authentically. The purpose of this dissertation is to equip choral directors with the necessary tools for bridging the gap between desiring to perform and actually performing multicultural octavos.

Six authors have provided authenticity checklists that are designed to help music educators evaluate and perform multicultural music. This research synthesizes those lists to …

Johann Strauss Ii's Die Fledermaus: Historical Background And Conductor's Guide, Jennifer Bruton

Dissertations

Students pursuing graduate degrees in conducting often have aspirations of being high school or college choir or band directors. Others want to lead orchestra programs in educational or professional settings. Sadly, many colleges and universities do not have systems in place that provide avenues for those choosing this career path. The curriculum should go beyond teaching the rudiments of baton technique. Students should receive instruction and practical experience, applying what they have learned. Lab bands and choirs are a helpful tool, but I believe opera programs provide an ideal and essential venue where conductors can not only improve and hone …

Developing A Computational Framework For A Construction Scheduling Decision Support Web Based Expert System, Feroz Ahmed

Dissertations

Decision-making is one of the basic cognitive processes of human behaviors by which a preferred option or a course of action is chosen from among a set of alternatives based on certain criteria. Decision-making is the thought process of selecting a logical choice from the available options. When trying to make a good decision, all the positives and negatives of each option should be evaluated. This decision-making process is particularly challenging during the preparation of a construction schedule, where it is difficult for a human to analyze all possible outcomes of each and every situation because, construction of a project …

Solo Trombone With Electronic Accompaniment: An Analysis And Performance Guide For Three Recent Compositions, Joshua Mize

Dissertations

This dissertation examines three solo trombone works, each with a different electronic accompaniment–fixed media, live electronics with a computer, and live electronics with a loop station. A historical and cultural background establishes a context for each accompaniment type, followed by a brief introduction of the selected composition and its composer. Then, an analysis of the piece explores how the electronic accompaniment functions within the context of the solo. Finally, a performance guide addresses rehearsal techniques and important aspects of performing with the different electronic accompaniments. The final product is a pedagogical resource representing current literature for the trombone and electronics …

The Changing News Paradigm Of South Mississippi’S Sun Herald As Seen Through The Eyes Of Its Journalists: 1968-2018, Judy Day Isbell

Dissertations

From the earliest days of the American democracy, one of the key tenets of the new government was rule by an informed electorate. This notion of rule of the people, by the people, for the people was established in the first article of the United States Constitution when the houses of Congress were carefully designed, and the idea of a knowledgeable constituency was emphasized in the first amendment when among such basic freedoms as speech, religion and assembly was freedom of the press.

Newspapers in America have changed significantly since the writing of that constitution, but most particularly in the …