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2017

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Articles 10891 - 10920 of 11102

Full-Text Articles in Physical Sciences and Mathematics

Ferrate As A New Treatment Chemical For Removal Of Effluent Organic Matter (Efom) And Emerging Micro-Pollutants In Treated Municipal Wastewater For Water Reuse, Nanzhu Li Jan 2017

Ferrate As A New Treatment Chemical For Removal Of Effluent Organic Matter (Efom) And Emerging Micro-Pollutants In Treated Municipal Wastewater For Water Reuse, Nanzhu Li

Theses, Dissertations and Culminating Projects

Rapidly expanding population, escalating water consumption, and dwindling water resources make water shortage a crisis on a global level, particularly in arid and semi-arid areas or where water sources are highly contaminated. Water reuse, accomplished by a variety of water reclamation technologies, is a strategically sound approach to this crisis. In practice, secondary effluent that is the treated wastewater discharged from municipal wastewater treatment plants (WWTPs) is a preferred reclaimed water source due to its high quality and stable quantity. However, various pollutants, effluent organic matters (EfOM) and emerging contaminants in particular, are still present in secondary effluent. They should …

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Differences In Perceived Constraints Of Telework Utilization Among Teleworkers And Office Workers, Yolanda West Jan 2017

Differences In Perceived Constraints Of Telework Utilization Among Teleworkers And Office Workers, Yolanda West

Walden Dissertations and Doctoral Studies

Approximately 37% of the U.S. labor force currently works from a remote location. Costs and competition are driving organizations to increase the use of telework among remote workplaces. Increasing organizational knowledge of the perceptions of current teleworkers could increase its adoption by employees and improve its implementation by managers. The purpose of this research was to test hypotheses regarding the perceived levels of telework efficiency, social interaction, and technical support to determine in those perceptions differed between teleworkers and office workers. Goldratt's Theory of Constraints framed the quantitative research design. A purposive sample of 54 teleworkers and office workers in …

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The Relationship Between Ethical Leadership And Sustainability In Small Businesses, David Amisano Jan 2017

The Relationship Between Ethical Leadership And Sustainability In Small Businesses, David Amisano

Walden Dissertations and Doctoral Studies

Since the 2008 financial crisis, business leaders' ethical behaviors have been under scrutiny. These leaders face uncertainty regarding ethical leadership behaviors and their impact. Because small business leadership involves multiple facets of behavior and decision-making, small business leaders may have an insufficient understanding of the impact of ethical leadership behaviors on the sustainability of their businesses. The purpose of this correlational study was to examine the relationship between ethical leadership and financial, social, and environmental sustainability in small businesses. Integrated social contracts theory was the theoretical framework. The participants consisted of 80 members of a chamber of commerce located in …

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Return On Investment Of The Cftp Framework With And Without Risk Assessment, Anne Lim Lee Jan 2017

Return On Investment Of The Cftp Framework With And Without Risk Assessment, Anne Lim Lee

Walden Dissertations and Doctoral Studies

In recent years, numerous high tech companies have developed and used technology roadmaps when making their investment decisions. Jay Paap has proposed the Customer Focused Technology Planning (CFTP) framework to draw future technology roadmaps. However, the CFTP framework does not include risk assessment as a critical factor in decision making. The problem addressed in this quantitative study was that high tech companies are either losing money or getting a much smaller than expected return on investment when making technology investment decisions. The purpose of this research was to determine the relationship between returns on investment before and after adding risk …

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Strategies Hospital Leaders Use In Implementing Electronic Medical Record Systems, Shaunette Miller Jan 2017

Strategies Hospital Leaders Use In Implementing Electronic Medical Record Systems, Shaunette Miller

Walden Dissertations and Doctoral Studies

Some hospital leaders lacked strategies for implementing electronic medical record (EMR) systems. The purpose of this case study was to explore successful strategies that hospital leaders used in implementing EMR systems. The target population consisted of hospital leaders who succeeded in implementing EMR systems in a single healthcare organization located in the Los Angeles, California region. The conceptual framework used was Kotter's (1996) eight-step process for leading change, and data were collected from face-to-face recorded interviews with 5 participants and from company documents related to EMR design and development. Data were analyzed through methodological triangulation of data types, and exploring …

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Educating Nurses On Workflow Changes From Electronic Health Record Adoption, Rhoda Lynn Atienza San Jose Jan 2017

Educating Nurses On Workflow Changes From Electronic Health Record Adoption, Rhoda Lynn Atienza San Jose

Walden Dissertations and Doctoral Studies

Workflow issues related to adoption of the electronic health record (EHR) has led to unsafe workarounds, decreased productivity, inefficient clinical documentation and slow rates of EHR adoption. The problem addressed in this quality improvement project was nurses' lack of knowledge about workflow changes due to EHR adoption. The purpose of this project was to identify changes in workflow and to develop an educational module to communicate the changes. This project was guided by both the ADDIE model (analysis, design, development, implementation, and evaluation) and the diffusion of innovations theory. Five stages were involved: process mapping, cognitive walkthrough, eLearning module development, …

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Overcoming The Adverse Impact Of Internal Subculture Communications Within Organizations, Terrence Lee Farrier Jan 2017

Overcoming The Adverse Impact Of Internal Subculture Communications Within Organizations, Terrence Lee Farrier

Walden Dissertations and Doctoral Studies

The need for clear and organizationally effective communications is necessary to maintain sustainability as competition increases. Current research has not addressed problems associated with senior managers' clarity and intent and the misinterpretation by midlevel managers of that intent, causing division managers to misinterpret the company plans. Unresolved miscommunications may lead to destructive subculture development. This mixed methods design focused on how to minimize the confusion that manifests between senior and midlevel management within diverse and decentralized decision support structures. The secondary purpose was to advocate for the identification of divisional misalignment and provide information for a tool to help senior …

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Strategies For U.S. City Government Enterprise Resource Planning System Implementation Success, Jennifer Miller Jan 2017

Strategies For U.S. City Government Enterprise Resource Planning System Implementation Success, Jennifer Miller

Walden Dissertations and Doctoral Studies

Strategies for enterprise resource planning (ERP) system implementation success have been a focus of scholars since the 1990s. Researchers have demonstrated that ERP system implementation could cause both system failures and organization failures, affecting both operations and stakeholders. The theory of constraints was the conceptual framework for this single qualitative case study that explored ERP system critical success factors (CSFs) and strategies U.S. city governments use to successfully implement ERP systems. One city government in New Mexico with a successful ERP system served as the case study's population. Data were collected from semistructured interviews and relevant documents and then open …

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Achieving Sustainability In Hazard-Prone Territories: A Case Study, Denise J. Roberts Jan 2017

Achieving Sustainability In Hazard-Prone Territories: A Case Study, Denise J. Roberts

Walden Dissertations and Doctoral Studies

Achieving sustained economic growth and development has been an area of concern for policy-makers in the Anglophone Caribbean since the transition from colonial rule to self-governance. To date, the researcher did not find any research that has explicitly examined the role of policy-making effectiveness as a strategy for achieving the goals of sustainable development. This qualitative multiple case study of Barbados and Grenada was conceptualized from the perspective of critical theory from the World Commission on Environment and Development to explore and understand why sustainability has not been sufficiently realized and how sustainable development may be pursued in territories that …

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The Challenges Of Implementing Bring Your Own Device, Leslie Deshield Jan 2017

The Challenges Of Implementing Bring Your Own Device, Leslie Deshield

Walden Dissertations and Doctoral Studies

Research conducted by Tech Pro (2014) indicated that the Bring Your Own Device (BYOD) concept is gaining momentum with 74% of organizations already having some BYOD program or planning to implement one. While BYOD offers several benefits, it also presents challenges that concern information technology leaders and information security managers. This correlational study used the systems theory framework to examine the relationship between information security managers' intentions, perceptions of security, and compliance regarding BYOD implementation. Participants of the study consisted of information security managers in the eastern United States who had obtained the Certified Information Systems Manager certification. Data was …

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Heterocycles Via The Pd-Catalyzed Heterofunctionalization Of Alkylidenecyclopropanes, Phillip Roman Lazzara Jan 2017

Heterocycles Via The Pd-Catalyzed Heterofunctionalization Of Alkylidenecyclopropanes, Phillip Roman Lazzara

Dissertations

Natural compounds are often used as inspiration for novel chemical structures that provide medicinal benefits to human health. The unique 3-dimentional structures of these molecules make the majority of them synthetic challenges for organic chemists. While there is great diversity among these molecules, many of these carbon-based compounds exhibit similar key structural features. One of the most common features amongst biologically active molecules is a rigid carbon ring bearing nitrogen or oxygen atoms, which are known as heterocycles. The structural rigidity of heterocycles helps properly align key interactions of the molecule with those of a specific protein, which causes the …

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Reducing Technology Costs For Small Real Estate Businesses Using Cloud And Mobility, Linda Anne-Marie Mcintosh Jan 2017

Reducing Technology Costs For Small Real Estate Businesses Using Cloud And Mobility, Linda Anne-Marie Mcintosh

Walden Dissertations and Doctoral Studies

Increased client accessibility strategies, awareness of technology cost, and factors of third-party data security capabilities are elements small real estate business (SREB) owners need to know before adopting cloud and mobility technology. The purpose of this multiple case study was to explore the strategies SREB owners use to implement cloud and mobility products to reduce their technology costs. The target population consisted of 3 SREB owners who had experience implementing cloud and mobility products in their businesses in the state of Texas. The conceptual framework of this research study was the technology acceptance model theory. Semistructured interviews were conducted and …

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Evaluating Sociotechnical Factors Associated With Telecom Service Provisioning: A Case Study, Fahad Iqbal Jan 2017

Evaluating Sociotechnical Factors Associated With Telecom Service Provisioning: A Case Study, Fahad Iqbal

Walden Dissertations and Doctoral Studies

Provisioning Internet services remains an area of concern for Internet service providers. Despite investments to improve resources and technology, the understanding of sociotechnical factors that influence the service-provisioning life cycle remains limited. The purpose of this case study was to evaluate the influence of sociotechnical factors associated with telecom service provisioning and to explore the critical success and failure factors, specifically in the telecommunication industry of Kuwait. Guided by sociotechnical systems theory, this qualitative exploratory case study approach examined a purposeful sample of 19 participants comprising of managers, engineers, and technicians who had the knowledge and experience of the service-provisioning …

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Strategies Information And Communication Technology Managers Use To Build Employee Competencies, Thulaganyo Arnold Rabogadi Jan 2017

Strategies Information And Communication Technology Managers Use To Build Employee Competencies, Thulaganyo Arnold Rabogadi

Walden Dissertations and Doctoral Studies

The World Economic Forum (WEF) found that Botswana's information and communication technology (ICT) networked readiness index (NRI) had declined from position 89 in 2012 to 104 in 2015. A decline in Botswana's ICT NRI resulted in a modest gross domestic product (GDP) growth increasing from 4.2% in 2012 to 5.0% in 2015. The purpose of this qualitative multiple case study was to explore strategies ICT service provider managers use to build employee competencies to address ICT infrastructure performance deficiencies. The target population for this study consisted of over 120 managers from 2 ICT service providers located in Gaborone and Francistown …

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Evaluating Intention To Use Remote Robotics Experimentation In Programming Courses, Pericles Leng Cheng Jan 2017

Evaluating Intention To Use Remote Robotics Experimentation In Programming Courses, Pericles Leng Cheng

Walden Dissertations and Doctoral Studies

The Digital Agenda for Europe (2015) states that there will be 825,000 unfilled vacancies for Information and Communications Technology by 2020. This lack of IT professionals stems from the small number of students graduating in computer science. To retain more students in the field, teachers can use remote robotic experiments to explain difficult concepts. This correlational study used the unified theory of acceptance and use of technology (UTAUT) to examine if performance expectancy, effort expectancy, social influence, and facilitating conditions can predict the intention of high school computer science teachers in Cyprus, to use remote robotic experiments in their classes. …

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Security Strategies For Hosting Sensitive Information In The Commercial Cloud, Edward Steven Forde Jan 2017

Security Strategies For Hosting Sensitive Information In The Commercial Cloud, Edward Steven Forde

Walden Dissertations and Doctoral Studies

IT experts often struggle to find strategies to secure data on the cloud. Although current security standards might provide cloud compliance, they fail to offer guarantees of security assurance. The purpose of this qualitative case study was to explore the strategies used by IT security managers to host sensitive information in the commercial cloud. The study's population consisted of information security managers from a government agency in the eastern region of the United States. The routine active theory, developed by Cohen and Felson, was used as the conceptual framework for the study. The data collection process included IT security manager …

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Improving Workflow At The Point Of Care Using The Electronic Health Record, Rox Ann Sparks Jan 2017

Improving Workflow At The Point Of Care Using The Electronic Health Record, Rox Ann Sparks

Walden Dissertations and Doctoral Studies

The electronic health record (EHR) is an important part of the effort to improve health care and reduce costs in the United States. Primary care providers, among the largest group of caregivers in the nation, often experience difficulty with implementation and utilization of EHRs. Efforts to enhance the provider's effectiveness in the use of the EHR should result in improved patient outcomes as well as decreasing the overall cost of health care. Guided by the diffusion of innovation theory, this project was initiated to develop a plan for improved usage of the EHR in a primary care setting. A survey …

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Information Technology Training To Promote Collaboration Among Multiple Generations, Gregg Foster Jan 2017

Information Technology Training To Promote Collaboration Among Multiple Generations, Gregg Foster

Walden Dissertations and Doctoral Studies

The decision to implement information technology (IT) initiatives to enhance collaboration among veterans, baby boomers, Generation X, Generation Y, and Fifth Generation employees continues to challenge organizational leaders. The purpose of this nonexperimental study was to identify how the implementation of information technology initiatives, coupled with the knowledge of learning styles, might enhance collaboration among generational cohort employees. The generational cohort theory, Maslow's hierarchy of needs theory, and the technology acceptance model were the theoretical frameworks used to develop an understanding of the relationships among the cohorts and the acceptance of technology to enhance collaboration. Data were collected from a …

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Environmental Relocation Policy As Experienced By One Eastern Missouri Dioxin-Contaminated Community, Susan Annette Olsen Jan 2017

Environmental Relocation Policy As Experienced By One Eastern Missouri Dioxin-Contaminated Community, Susan Annette Olsen

Walden Dissertations and Doctoral Studies

Research on environmental relocation is scant and narrow, focusing on a few aspects of permanent relocation and social impacts of natural disasters. As a result, little is known about the long term social impacts of the Environmental Protection Agency's (EPA) environmental relocation policy. A combined conceptual and theoretical framework of Walter's placeways; Ullberg's disaster memoryscapes; Richardson's remembrance and memorialization; Dynes' social capital; and, Norris, Stevens, Pfefferbaum, Wyche, and Pfefferbaum's work on community resilience guided this phenomenological study with the purpose of better understanding competing and complementary roles of each of these constructs in the context of environmental relocation of one …

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Examining The Behavioral Intention Of Individuals' Compliance With Information Security Policies, David A. Brown Jan 2017

Examining The Behavioral Intention Of Individuals' Compliance With Information Security Policies, David A. Brown

Walden Dissertations and Doctoral Studies

Target Corporation experienced an information security breach resulting in compromising customers' financial information. Management is responsible for implementing adequate information security policies that protect corporate data and minimize financial losses. The purpose of this experimental study was to examine the effect of a fear appeal communication on an individual's information security policy behavioral intention. The sample population involved information technology professionals randomly selected from the SurveyMonkey audience. A research model, developed using constructs from deterrence theory and protection motivation theory, became the structural model used for partial least squares-structural equation modeling (PLS-SEM) analysis of the survey response data, which indicated …

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Effective Leadership And Nonprofit Sustainability, Vaughn Orsborne Gleaves Jan 2017

Effective Leadership And Nonprofit Sustainability, Vaughn Orsborne Gleaves

Walden Dissertations and Doctoral Studies

A sustainability plan of an organization is useless without effective leadership in its design and execution. The purpose of this case study was to explore strategies that church leaders having at least 7 continuous years of organizational fiscal sustainability and leadership used to ensure fiscal sustainability. The study included 8 face-to-face and 2 phone interviews with 4 senior pastors, 3 associate pastors, a treasurer, a finance committee chair, and a certified public accountant who lived in the Akron, Ohio area along with a review of documents including a leadership meeting agenda and financial committee meeting agenda, provided by study participants. …

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Faculty Perceptions Of Instructional Strategies That Foster Student Engagement In Online Courses, Sharon M. Hope Jan 2017

Faculty Perceptions Of Instructional Strategies That Foster Student Engagement In Online Courses, Sharon M. Hope

Walden Dissertations and Doctoral Studies

Developing online instructional strategies for increasing student engagement and success is significant locally and nationally due to growth in the online field, advances in technology, and the need for colleges to maximize student success. This study stemmed from the desire of administrators at an upstate New York private college to discover additional ways to design and deliver effective online instruction. The purpose of this qualitative instrumental case study was to discover faculty perceptions of and experiences with instructional strategies that they used to foster student engagement in online learning. Kearsley and Shneiderman's engagement theory formed the study's conceptual framework. Ten …

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Teachers' Theories Of Teaching And Learning And The Use Of Math Interventions, Nicole P. Jones Jan 2017

Teachers' Theories Of Teaching And Learning And The Use Of Math Interventions, Nicole P. Jones

Walden Dissertations and Doctoral Studies

Despite the academic gap between students with learning disabilities (LD) and their nondisabled peers, schools continue to educate students with LD in regular education classrooms. In secondary math classes, such as Algebra 1, students with LD have high percentages of failure. The purpose of this cross-sectional study was to examine the relationship between teachers' personal theories of teaching and learning and their use of math interventions. Fox's (1983) theoretical framework of teaching and learning was used as a conceptual lens. Surveys were administered to 20 high school math teachers in an urban Northeastern U.S. school district. An ordinal logistic regression …

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Antecedents Of Employees' Behavioral Intentions Regarding Information Technology Consumerization, Alain Ouattara Jan 2017

Antecedents Of Employees' Behavioral Intentions Regarding Information Technology Consumerization, Alain Ouattara

Walden Dissertations and Doctoral Studies

The majority of organizations worldwide have adopted IT consumerization. However, only a small percentage of them explicitly manage the dual use of personal devices and applications for work purposes. This correlational study used the extended unified technology acceptance and use technology model (UTAUT2) to examine whether employees' perceptions of habit, effort expectancy, performance expectancy, facilitating conditions, hedonic motivation, social influence, and price value can predict IT consumerization behavioral intentions (BI). A pre-existing UTAUT2 survey instrument was used to collect data from employees (N = 112) of small- and medium-sized organizations across different industries in Ontario, Canada. The regression analysis confirmed …

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The Influence Of Language On The Teaching And Learning Of Mathematics, Oneil St.Orbine Smith Jan 2017

The Influence Of Language On The Teaching And Learning Of Mathematics, Oneil St.Orbine Smith

Walden Dissertations and Doctoral Studies

A majority of students at the local University College of Science and Education (UCSE, pseudonym) in Jamaica do not have the conceptual understanding of mathematical principles to function in a competitive and highly globalized marketplace. In 2013 and 2014, 88% and 92% of freshmen education students scored at the lowest 2 levels on the Mathematics Diagnostic Test (MDT). The instructional language at UCSE is Standard English (SE) whereas most students speak Jamaican dialect (JD). The purpose of this study was to determine the effect that the language of instruction has on student achievement in math as measured by the MDT. …

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The Core Competencies Necessary For Global Information Technology Project Management, Gregory Michael Von Schleh Jan 2017

The Core Competencies Necessary For Global Information Technology Project Management, Gregory Michael Von Schleh

Walden Dissertations and Doctoral Studies

Global information technology (IT) project management organizations can create more value in their operations by presenting the core competencies possessed by global IT project managers (PMs) who are successful in their respective projects. The purpose of this multiple case study was to explore the core competencies and business strategies that IT PMs use to meet global IT project deadlines and budgets. This study involved 5 IT PMs from the Pacific Northwest (United States and Canada) who increased the quality of outsourced IT projects from 4 different companies. The data collection method included in-person semistructured interviews of participants and review of …

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Implications Of A Health Careers Exploration Program For Minority Student Matriculation, Angelica Ellman Christie Jan 2017

Implications Of A Health Careers Exploration Program For Minority Student Matriculation, Angelica Ellman Christie

Walden Dissertations and Doctoral Studies

Organizations that deliver programs to promote the entry of students from marginalized populations into the U.S. health workforce often struggle to demonstrate the effective achievement of outcomes, and face diminishing fiscal resources. This study was an empirical examination of the extent and manner that a statewide, precollege, health careers exploration program fostered the matriculation of underrepresented minority students into health degree education programs. Schneider and Stevenson's aligned ambitions framework provided the theoretical foundation. The research questions for this study examined the relationship between program participation and the successful health degree matriculation of racial minority students based on the extent of …

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The Relationship Between Nonprofit Organizations And Cloud Adoption Concerns, Dana Haywood Jan 2017

The Relationship Between Nonprofit Organizations And Cloud Adoption Concerns, Dana Haywood

Walden Dissertations and Doctoral Studies

Many leaders of nonprofit organizations (NPOs) in the United States do not have plans to adopt cloud computing. However, the factors accounting for their decisions is not known. This correlational study used the extended unified theory of acceptance and use of technology (UTAUT2) to examine whether performance expectancy, effort expectancy, social influence, facilitating conditions, hedonic motivation, price value, and habit can predict behavioral intention (BI) and use behavior (UB) of NPO information technology (IT) managers towards adopting cloud computing within the Phoenix metropolitan area of Arizona of the U.S. An existing UTAUT2 survey instrument was used with a sample of …

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Exploring Security, Privacy, And Reliability Strategies To Enable The Adoption Of Iot, Daud Alyas Kamin Jan 2017

Exploring Security, Privacy, And Reliability Strategies To Enable The Adoption Of Iot, Daud Alyas Kamin

Walden Dissertations and Doctoral Studies

The Internet of things (IoT) is a technology that will enable machine-to-machine communication and eventually set the stage for self-driving cars, smart cities, and remote care for patients. However, some barriers that organizations face prevent them from the adoption of IoT. The purpose of this qualitative exploratory case study was to explore strategies that organization information technology (IT) leaders use for security, privacy, and reliability to enable the adoption of IoT devices. The study population included organization IT leaders who had knowledge or perceptions of security, privacy, and reliability strategies to adopt IoT at an organization in the eastern region …

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Relationship Between Oil Theft, Pipeline Vandalism, And Security Costs With Revenue Losses, Ijeoma Ogechi Nwachukwu Jan 2017

Relationship Between Oil Theft, Pipeline Vandalism, And Security Costs With Revenue Losses, Ijeoma Ogechi Nwachukwu

Walden Dissertations and Doctoral Studies

The oil and gas multinational companies (MNCs) in the Niger Delta continue to face numerous challenges operating in the region, especially concerning the loss of revenue. Based on the resource dependence theory, the purpose of this correlational study was to examine the relationship between oil theft, pipeline vandalism, security costs, and revenue. Eighty-eight mid- to high-level managers of oil and gas completed the Factors That Affect Company Revenue instrument. The results of the multiple linear regression analyses indicated the model was able to significantly predict revenue, F(3,88) = 947,279.44, p < .001, R2 = 1.000. All 3 predictors contributed significantly to the model, with pipeline vandalism recording the highest beta value (Ã? = .553, p = .000), the oil theft predictor with the next highest beta weight (Ã? = .451, p = .000), and the security costs predictor with the next highest beta weight (Ã? = .387, p = .000). The leaders of the oil and gas MNCs could use the outcome of this study in creating strategies and policies that guide their operations in the region, which would improve the relationship with host communities and mitigate their efforts in reducing the loss of revenue. Improved relations would result in a reduction of oil theft, pipeline vandalism, and security costs, thereby reducing revenue losses. The implication of positive social change includes implementation of more corporate social responsibility strategies and improving the economy of the region and the livelihood of the host communities.

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