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2018

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Articles 11461 - 11490 of 11790

Full-Text Articles in Physical Sciences and Mathematics

Small Business Sustainability Strategies, Wayne A. Fillingim Jan 2018

Small Business Sustainability Strategies, Wayne A. Fillingim

Walden Dissertations and Doctoral Studies

Small businesses provide 48% of private-sector jobs in the United States and play a vital role in the country's economic growth and development. Only half of U.S. small businesses survive for longer than 5 years. The purpose of this qualitative multiple-case study was to explore sustainability strategies managers of small oilfield service companies used to sustain their business for longer than 5 years. Data were collected from semistructured interviews with 10 managers--one manager from each of 10 different oilfield service companies located in the Rocky Mountain region of the United States and from review of publicly available documents and archived …

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Identification Of 4-Isopropyl–Thiotropolone As A Novel Anti-Microbial: Regioselective Synthesis, Nmr Characterization, And Biological Evaluation, Mohamed Elagawany, Mohamed Elagawany, Lamees Hegazy, Feng Cao, Maureen Donlin, Nigam Rath, John Tavis, Bahaa Elgendy, Bahaa Elgendy Jan 2018

Identification Of 4-Isopropyl–Thiotropolone As A Novel Anti-Microbial: Regioselective Synthesis, Nmr Characterization, And Biological Evaluation, Mohamed Elagawany, Mohamed Elagawany, Lamees Hegazy, Feng Cao, Maureen Donlin, Nigam Rath, John Tavis, Bahaa Elgendy, Bahaa Elgendy

Chemistry & Biochemistry Faculty Works

We have synthesized and separated tosylated thujaplicin isomers for the first time, and elucidated their structures using 1D, 2D-NMR techniques and X-ray crystallography. The tosylated isomers were used to synthesize 4-isopropyl–thiotropolone and 6-isopropyl–thiotropolone in a regioselective manner. 1H and 13C Chemical shifts of synthesized isomers were fully assigned using several NMR experiments, and their isotropic magnetic shielding was calculated using the GIAO (Gauge Including Atomic Orbitals) method and the B3LYP def2-TZVPP level of theory. The calculated chemical shift values were in a good agreement with the experimental results. The biological activity of all synthesized compounds was evaluated against the fungal …

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Waste Management Minimization Strategies In Hospitals, Andrea L. Clark Jan 2018

Waste Management Minimization Strategies In Hospitals, Andrea L. Clark

Walden Dissertations and Doctoral Studies

During the delivery of healthcare services, hospital employees use enormous amounts of water, energy, and nonbiodegradable carcinogenic plastics. In the U.S., hospital staff generate an average of over 7,000 tons of waste per day at an average cost of $0.28 per pound for the disposal of regulated medical trash, which if efficiently managed or reduced, could result in substantial cost savings. Using the organizational learning and the transaction cost economics theories as the conceptual frameworks, the purpose of this qualitative case study was to explore strategies healthcare leaders used to minimize their waste management operational costs. Data were collected using …

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Strategies For Healthcare Payer Information Technology Integration After Mergers And Acquisitions, Kishore Maranganti Jan 2018

Strategies For Healthcare Payer Information Technology Integration After Mergers And Acquisitions, Kishore Maranganti

Walden Dissertations and Doctoral Studies

Despite the high rate of failure in merger and acquisition (M&A) transactions, many organizations continue to rely on M&As as their primary growth strategy and to address market competition. The purpose of this qualitative single case study was to explore strategies managers from a large healthcare payer in the midwestern United States used to achieve operational and strategic synergies during the postacquisition information technology (IT) integration phase. Haspeslagh and Jemison's acquisition integration approaches model was the conceptual framework for the study. Methodological triangulation was established by analyzing the data from the semistructured interviews of 6 senior executives and 6 IT …

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Cash-Flow Management Strategies In Small And Medium-Sized Occupational Health Enterprises, Sibongiseni Selby Myeni Jan 2018

Cash-Flow Management Strategies In Small And Medium-Sized Occupational Health Enterprises, Sibongiseni Selby Myeni

Walden Dissertations and Doctoral Studies

Small businesses are critical to the success of a country's economy. The leaders of the South African government focus on the role of small and medium-sized enterprises (SMEs) to boost the economy and eradicate inequality, poverty, and unemployment. However, the sustainability track record of South African SMEs remains one of the worst records in the world. Therefore, it is essential that stakeholders improve the sustainability of SMEs. Using the resource-based view conceptual framework, the aim of this multiple case study was to explore the strategies that occupational health SME leaders use to manage cash flow to achieve sustainability for longer …

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Relationship Between Corporate Social Responsibility, Environmental Management, And Profitability, Dr. Daisy Valentin Jan 2018

Relationship Between Corporate Social Responsibility, Environmental Management, And Profitability, Dr. Daisy Valentin

Walden Dissertations and Doctoral Studies

The U.S. hospitality industry's profitability has been shifting to environmental management and corporate social responsibility (CSR) practices. Hospitality industries accounted for 5% of the global market in 2015 and are expected to increase by 130% in 2035. Grounded in stakeholder theory, this correlation study examined the relationship between corporate sustainability officer (CSO) CSR, CSO environmental management, and hospitality business profitability. Secondary data were collected from 97 hotel websites of the Minneapolis-St. Paul, Minnesota area from 2014 to 2016. The multiple linear regression combinations of CSR and environmental management (EM) measured significantly related to the profitability index, F(3, 93) = 4.67, …

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The Use Of Performance Measurement Data In Nonprofit Organizational Sustainability, Helen S. Coy Jan 2018

The Use Of Performance Measurement Data In Nonprofit Organizational Sustainability, Helen S. Coy

Walden Dissertations and Doctoral Studies

In the United States, nonprofit organizations (NPOs) face a precarious future because of their heavy reliance on the financial support of government funding, other donor agencies, and philanthropic foundation resources. The purpose of this study is to understand how and to what extent leadership of NPOs can benefit from using funder-required performance data to improve organizational sustainability. Using Pfeffer and Salincik's resource dependency theory to explain organizational sustainability, this qualitative multiple case study of 10 NPOs in a northeastern U.S. state includes 14 interviews with NPO leadership, a document review of NPO 990 tax filings, annual performance reports, and board …

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Success Factors Of Entrepreneurship In Emerging Rural Economies, Sultan Tahir Mehmood Jan 2018

Success Factors Of Entrepreneurship In Emerging Rural Economies, Sultan Tahir Mehmood

Walden Dissertations and Doctoral Studies

One factor of the leadership stratagem is to account for the core values, operations, and growth of the organization. The purpose of this case study was to ascertain the financial strategies small business leaders incorporate to help ensure growth of small businesses. The conceptual framework of Schumpeter's innovation and entrepreneurship theory and the Grameen model were included to drive the scope and analysis of this study. A purposive sample of 8 leaders from successful small businesses in Islamabad contributed to a focus group session; 4 out of these participants originated from the finance and management department and 4 represented sales …

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Exploring Welfare Recipients' Self-Sufficiency Barriers Through Information Management Systems In Tennessee, Valenta Eunice Nichols Jan 2018

Exploring Welfare Recipients' Self-Sufficiency Barriers Through Information Management Systems In Tennessee, Valenta Eunice Nichols

Walden Dissertations and Doctoral Studies

Families living on welfare in low-income impoverished neighborhoods encounter multiple barriers that need mitigating before seeking work to reach self-sufficiency. Many welfare recipients' self-sufficiency barriers are unnoticeable to caseworkers due to lack of data sharing to assess clients' needs through information technology processes. The purpose of this exploratory descriptive phenomenological qualitative study was to understand welfare recipients' viewpoints on socioeconomic barriers to living self-sufficiently and gain perspectives from human services caseworkers and technical resources on data sharing issues that impact recipients' ability to live independently from government assistance. Data collection and observational field notes resulted from in-depth interviews of 11 …

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Spatiotemporal Variations In Coexisting Multiple Causes Of Death And The Associated Factors, Emmanuel Oluwatobi Salawu Jan 2018

Spatiotemporal Variations In Coexisting Multiple Causes Of Death And The Associated Factors, Emmanuel Oluwatobi Salawu

Walden Dissertations and Doctoral Studies

The study and practice of epidemiology and public health benefit from the use of mortality statistics, such as mortality rates, which are frequently used as key health indicators. Furthermore, multiple causes of death (MCOD) data offer important information that could not possibly be gathered from other mortality data. This study aimed to describe the interrelationships between various causes of death in the United States in order to improve the understanding of the coexistence of MCOD and thereby improve public health and enhance longevity. The social support theory was used as a framework, and multivariate linear regression analyses were conducted to …

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Complexity Theory Of Leadership And Management Information, Mark Aloysius Simpson Jan 2018

Complexity Theory Of Leadership And Management Information, Mark Aloysius Simpson

Walden Dissertations and Doctoral Studies

Implementing effective leadership strategies in management of information systems (MIS) can positively influence overall organizational performance. This study was an exploration of the general problem of failure to lead effectively in the current knowledge-based economy and the resulting deleterious effects on organizational performance and threats to continuing organizational viability. The specific problem was the lack of understanding regarding the interaction of leadership processes with MIS functions and the impact on organizational success. Managers' and employees' lived experiences of leadership in small- to medium-sized enterprises were explored, as well as how those experiences influenced the organization's adaptive responses regarding technology and …

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Transportation Electrification And Hospital Emergency Planning, Nathaniel Winfield Skinner Jan 2018

Transportation Electrification And Hospital Emergency Planning, Nathaniel Winfield Skinner

Walden Dissertations and Doctoral Studies

Because transportation in the San Francisco Bay Area is increasingly dependent on electricity, factors such as limited electricity storage capacity and nontransferability of batteries between vehicles need to be considered by emergency response planners (ERPs). The purpose of this study was to investigate planning for providing the power to provide emergency transportation for hospital staff/administration and those injured after earthquakes. The research questions of transportation need of emergency staff and patients after an earthquake and differences between Bay Area cities and counties in considering transportation needs were addressed in this qualitative study utilizing a collective case study to assess electric …

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Influence Of Reading Proficiency On Placement And Success In Online Developmental Mathematics, Diane Marie Stryk Jan 2018

Influence Of Reading Proficiency On Placement And Success In Online Developmental Mathematics, Diane Marie Stryk

Walden Dissertations and Doctoral Studies

Community college leaders have spent years trying to improve success rates for students in developmental mathematics (DM) courses, but with little progress. This quantitative study, using a pre-experimental static-group research design, examined if a change in a community college district's policy and practices for student placement into DM courses could improve student success in online DM courses. Bounded rationality theory provided the lens to view how students' decision making is influenced by the lack of timely and appropriate information during the placement process. The study addressed whether a composite placement score, the result of combining the ACCUPLACER placement scores for …

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The Relationship Between Leadership Style And Cognitive Style To Software Project Success, Jacquelyne L. Wilson Jan 2018

The Relationship Between Leadership Style And Cognitive Style To Software Project Success, Jacquelyne L. Wilson

Walden Dissertations and Doctoral Studies

Project managers can be change agents providing direction and motivation for subordinates to meet and exceed goals; however, there is a lack of information about the soft skills needed to achieve project success. Understanding the relationship between cognitive style and transformational leadership to software project outcomes is important. This study describes the lived experiences of software project managers by focusing on their attitudes towards, perceptions of, and behaviors related to using transformational leadership and cognitive styles in agile software development environments. Husserlian phenomenological design was used to identify the structure of participants' experiences. The naturalistic decision-making model and the theory …

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Overcoming Data Breaches And Human Factors In Minimizing Threats To Cyber-Security Ecosystems, Manouan Pierre-Marius Ayereby Jan 2018

Overcoming Data Breaches And Human Factors In Minimizing Threats To Cyber-Security Ecosystems, Manouan Pierre-Marius Ayereby

Walden Dissertations and Doctoral Studies

This mixed-methods study focused on the internal human factors responsible for data breaches that could cause adverse impacts on organizations. Based on the Swiss cheese theory, the study was designed to examine preventative measures that managers could implement to minimize potential data breaches resulting from internal employees' behaviors. The purpose of this study was to provide insight to managers about developing strategies that could prevent data breaches from cyber-threats by focusing on the specific internal human factors responsible for data breaches, the root causes, and the preventive measures that could minimize threats from internal employees. Data were collected from 10 …

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Strategies To Sustain Small And Medium-Size Manufacturing Enterprises In Jamaica, Hugh Anthony Blake Jan 2018

Strategies To Sustain Small And Medium-Size Manufacturing Enterprises In Jamaica, Hugh Anthony Blake

Walden Dissertations and Doctoral Studies

Jamaica's small and medium-sized enterprises (SMEs) have a high failure rate. In 2016, the Global Entrepreneurship Monitor (GEM) recorded Jamaica's SME start-up rate at 4.06% and the discontinuance rate at 9%. The purpose of this qualitative descriptive multiple case study was to explore the strategies some Jamaican SME owners used to achieve business sustainability in the manufacturing sector for longer than 5 years of operation. The conceptual framework used was the entrepreneurship theory, which provided insights into business sustainability. A purposive sample of 5 owners of SMEs who had achieved business sustainability in the manufacturing sector for longer than 5 …

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Relationship Between Software Development Team Structure, Ambiguity, Volatility, And Project Failure, Dominic Martinelli Saxton Jan 2018

Relationship Between Software Development Team Structure, Ambiguity, Volatility, And Project Failure, Dominic Martinelli Saxton

Walden Dissertations and Doctoral Studies

Complex environments like the United States Air Force's advanced weapon systems are highly reliant on externally developed software, which is often delivered late, over budget, and with fewer benefits than expected. Grounded in Galbraith's organizational information processing theory, the purpose of this correlational study was to examine the relationship between software development team structure, ambiguity, volatility and software project failure. Participants included 23 members of the Armed Forces Communications and Electronics Association in the southeastern United States who completed 4 project management surveys. Results of multiple regression analysis indicated the model as a whole was able to predict software project …

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Digital Strategies Senior Bank Executives In Mauritius Use To Improve Customer Service, Sailesh Sewpaul Jan 2018

Digital Strategies Senior Bank Executives In Mauritius Use To Improve Customer Service, Sailesh Sewpaul

Walden Dissertations and Doctoral Studies

Customers' use of digital banking has reshaped traditional banking, and senior level bank executives must know how to leverage this innovation to improve customer service to increase profitability. Using the technology acceptance model as the conceptual framework, the purpose of this multiple case study was to explore effective digital banking strategies that senior level executives used to improve customer service to increase profitability. The target population for this study included senior-level executives from 3 banks in Mauritius possessing successful development and implementation experience in digital banking strategies to improve customer service. Data were collected through semistructured interviews and organizational documents, …

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Staff Education Module For Bar Code Medication Administration, Francoise Juste Jan 2018

Staff Education Module For Bar Code Medication Administration, Francoise Juste

Walden Dissertations and Doctoral Studies

Bar Code Medication Administration (BCMA) is a technology-supported nursing tool that has become the standard of practice for medication administration. When used effectively and efficiently, this tool has the potential to reduce medication errors in acute care settings. In a pediatric unit at a major urban hospital in the northeast region of the United States, the absence of a BCMA nursing staff educational module affected the use of this safety tool leading to an increase of medication errors. The purpose of this DNP project was to develop a comprehensive educational module to promote BCMA in the pediatric unit of the …

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Equity Trading Evaluation Strategies In Switzerland After The European Mifid Ii, Linn Kristina Karstadt Jan 2018

Equity Trading Evaluation Strategies In Switzerland After The European Mifid Ii, Linn Kristina Karstadt

Walden Dissertations and Doctoral Studies

Swiss bank traders are affected by technological and regulatory challenges, which may affect their broker voting process and may result in a change of trading and evaluation behavior in 2018. Compounded challenges exist when broker evaluation strategies are not effective or Markets in Financial Instruments Directive (MiFID) II compliant. This qualitative, single case study, built on efficient capital market hypothesis and innovative disruption theory, was focused on effective broker evaluation strategies after MiFID II in Switzerland. The sample consisted of 4 buy-side traders, who shared their unique perspectives. Methodological triangulation was achieved through semistructured interviews, a review of the institution's …

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Risk Management Strategies To Prevent And Mitigate Emerging Operational Security Threats, Nancy Page Larrimore Jan 2018

Risk Management Strategies To Prevent And Mitigate Emerging Operational Security Threats, Nancy Page Larrimore

Walden Dissertations and Doctoral Studies

Dependence on technology brings security compromises that have become a global threat that costs businesses millions of dollars. More than 7.6 million South Carolinians incurred effects from the 162 security breaches reported in 2011-2015. The purpose of this multiple case study was to explore the risk management strategies small business leaders use to prevent and mitigate operational security threats that produce financial losses. The population for this study consisted of 6 business leaders in South Carolina who have demonstrated successful experience in preventing and mitigating operational security threats. Transformational leadership theory provided the conceptual framework for exploring the overreaching research …

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Strategies Used By Cloud Security Managers To Implement Secure Access Methods, Eric Harmon Jan 2018

Strategies Used By Cloud Security Managers To Implement Secure Access Methods, Eric Harmon

Walden Dissertations and Doctoral Studies

Cloud computing can be used as a way to access services and resources for many organizations; however, hackers have created security concerns for users that incorporate cloud computing in their everyday functions. The purpose of this qualitative multiple case study was to explore strategies used by cloud security managers to implement secure access methods to protect data on the cloud infrastructure. The population for this study was cloud security managers employed by 2 medium size businesses in the Atlanta, Georgia metropolitan area and that have strategies to implement secure access methods to protect data on the cloud infrastructure. The technology …

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Carbon-Storing Trees And Particulate Matter Reduction In Los Angeles, California, Tanyi Obenson Jan 2018

Carbon-Storing Trees And Particulate Matter Reduction In Los Angeles, California, Tanyi Obenson

Walden Dissertations and Doctoral Studies

Air pollution is a major concern in heavily populated cities such as Los-Angeles, California. Particulate Matter (PM) pollution in Hispanic and Black American neighborhoods in Los Angeles tends to be higher than adjacent non-minority areas. Research has indicated that certain carbon-storing trees can be used to reduce PM pollution. The purpose of this qualitative, interview research project was to determine the feasibility of using carbon-storing trees to reduce PM pollution in Hispanic and Black American neighborhoods in Los Angeles. Using an ecological theoretical framework, 10 subject matter experts were interviewed about their knowledge of carbon-storing properties and the feasibility of …

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Video Game Development Strategies For Creating Successful Cognitively Challenging Games, Walter K. Williams Jan 2018

Video Game Development Strategies For Creating Successful Cognitively Challenging Games, Walter K. Williams

Walden Dissertations and Doctoral Studies

The video game industry is a global multibillion dollar industry with millions of players. The process of developing video games is essential for the continued growth of the industry, and developers need to employ effective strategies that will help them to create successful games. The purpose of this explorative qualitative single case study was to investigate the design strategies of video game developers who have successfully created video games that are challenging, entertaining, and successful. The technology acceptance model served as a conceptual framework. The entire population for this study was members of a video game development team from a …

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Organizational Information Security: Strategies To Minimize Workplace Cyberloafing For Increased Productivity, Hawazin Al Abbasi Jan 2018

Organizational Information Security: Strategies To Minimize Workplace Cyberloafing For Increased Productivity, Hawazin Al Abbasi

Walden Dissertations and Doctoral Studies

Productivity loss occurs in organizations that experience high levels of personal Internet use by employees on company time, which includes employees using smartphones to surf without needing the firm's Internet connection. The purpose of this qualitative phenomenological study was to explore reliable ways for organizational leaders to monitor or limit their employees' use of smartphone technology for personal use (cyberloafing) while on the job to minimize wasted work time. Social cognitive theory, which includes an emphasis on human behavioral changes based upon the environment, people, and behavior, served as the conceptual framework. The general research question was as follows: How …

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Medical Identity Theft And Palm Vein Authentication: The Healthcare Manager's Perspective, Cruz Cerda Iii Jan 2018

Medical Identity Theft And Palm Vein Authentication: The Healthcare Manager's Perspective, Cruz Cerda Iii

Walden Dissertations and Doctoral Studies

The Federal Bureau of Investigation reported that cyber actors will likely increase cyber intrusions against healthcare systems and their concomitant medical devices because of the mandatory transition from paper to electronic health records, lax cyber security standards, and a higher financial payout for medical records in the deep web. The problem addressed in this quantitative correlational study was uncertainty surrounding the benefits of palm vein authentication adoption relative to the growing crime of medical identity theft. The purpose of this quantitative correlational study was to understand healthcare managers' and doctors' perceptions of the effectiveness of palm vein authentication technology. The …

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Successful Strategies For Implementing An Enterprise Resource Planning System, Arrogah Adade-Boafo Jan 2018

Successful Strategies For Implementing An Enterprise Resource Planning System, Arrogah Adade-Boafo

Walden Dissertations and Doctoral Studies

The enterprise resource planning (ERP) implementation success rate is as low as 30%. Researchers have shown that ERP system implementation could cause both system and organization failures, affecting operations and stakeholders, alike. The technology-organization-environment conceptual framework was used to ground this qualitative single-case study. The purpose of the study was to explore strategies that a manufacturing firm in Ghana used to implement ERP systems successfully. The population of this case study comprised 5 stakeholders from a manufacturing firm in Ghana who had success in implementing an ERP system. Data were collected using face-to-face semistructured interviews and review of various corporate …

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Phenomenological Study On Female Engineering Leaders In The New York Utility Industry, Shelanda Gonsalves Jan 2018

Phenomenological Study On Female Engineering Leaders In The New York Utility Industry, Shelanda Gonsalves

Walden Dissertations and Doctoral Studies

This qualitative phenomenological study explored the development of women with an engineering background who became leaders. The purpose of this study was to explore the lived experiences of female engineering leaders in the New York utility sector. The research problem was why few women with engineering degrees obtain leadership positions. Women comprise half the total working population, yet few hold leadership positions, especially in the utility sector. In this study, 28 women in the New York utility sector shared experiences on their progression from engineer to leadership. The conceptual framework was the Moustakas phenomenological approach, investigating the humanistic properties of …

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Strategies For Sustainability Of Nonfranchise Casual Dining Restaurants, Kristin Burke Martin Jan 2018

Strategies For Sustainability Of Nonfranchise Casual Dining Restaurants, Kristin Burke Martin

Walden Dissertations and Doctoral Studies

In the United States, over 50% of restaurants fail within the first 5 years of operations resulting in approximately $2.1 billion annually in lost national sales revenue. The purpose of this multiple case study was to explore the strategies used by owners of nonfranchise, casual dining restaurants to ensure sustainability longer than 5 years. The study was grounded in Porter's 5 forces framework as a lens for identifying effective strategies that promote restaurant sustainability. The data collection process comprised gathering data and information via semistructured interviews with 3 owners of nonfranchise, casual dining restaurants in the mid-Atlantic region who sustained …

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Strategies To Maintain Adequate Hotel Water Supplies, Deborah R. Popely Jan 2018

Strategies To Maintain Adequate Hotel Water Supplies, Deborah R. Popely

Walden Dissertations and Doctoral Studies

Hotel guests can use 2 to 3 times more water than community residents. Hotels are water-intensive businesses, and water scarcity presents a pressing problem for managers who rely on an uninterrupted supply of water to meet guests' needs and maintain profitability. Using the resource-based view (RBV) as a conceptual framework, the purpose of this qualitative multiple case study was to explore strategies that hotel managers used to successfully maintain adequate water supplies in the Spanish Canary Islands, an historically arid site and a tourism destination. Data were collected from semistructured interviews and hotel water usage reports. Yin's 5-step approach of …

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