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Full-Text Articles in Physical Sciences and Mathematics

Strategies That Improve Ux (User Experience) Design Through Product Innovation, Jibing Zhao Jan 2022

Strategies That Improve Ux (User Experience) Design Through Product Innovation, Jibing Zhao

Walden Dissertations and Doctoral Studies

User Experience (UX) design improvement can alter business results. Information technology (IT) company leaders are concerned with UX design improvement, as it is the number one indication of product innovation success and user satisfaction. Grounded in Christensen’s disruptive innovation theory, the purpose of the qualitative single case study was to explore strategies IT company leaders and UX designers used to identify critical UX design elements that lead to improved product innovations. The participants were five IT company leaders and a focus group of four UX designers employed by a sizeable telecom organization in Beijing, China. The data were collected from …

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Risk Management In Wastewater Treatment Policy Creation And Revision, Emily Silver Jan 2022

Risk Management In Wastewater Treatment Policy Creation And Revision, Emily Silver

Walden Dissertations and Doctoral Studies

The focus of this professional administrative study was risk management in the field of wastewater treatment. The emphasis was on the creation and revision of policies to help reduce overall agency risk factors. The guiding question for the study focused on what revisions to the client organization’s safety policy and personnel policies and procedures would decrease the agency risk. A combination of both safety and policy change theories provided the basis for the study’s conceptual framework. This blended approach allowed for a more thorough and comprehensive interpretation of the collected data. In this qualitative case study, data pertinent to risk …

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Strategies For Adoption Of Innovative Information Technology For Business Performance Improvement, James Melvin Smith Jan 2022

Strategies For Adoption Of Innovative Information Technology For Business Performance Improvement, James Melvin Smith

Walden Dissertations and Doctoral Studies

Business leaders do not often consider investing in informational technology (IT) to increase performance. These business leaders lack knowledge of innovative IT adoption strategies to expand their revenue and reduce costs to sustain a competitive advantage. Grounded in the technology-organization-environment (TOE) theory, the purpose of this qualitative multiple case study was to explore IT innovation adoption strategies business leaders use to increase performance. The participants were four successful business leaders selected from finalists for international entrepreneurial awards presented annually in the Mid-Atlantic region of the United States. The data were collected using semistructured telephone interviews, media releases, and online publications. …

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Information Systems Management And Sustainable Urban Development: A Case Study, Endris A. Suraj Jan 2022

Information Systems Management And Sustainable Urban Development: A Case Study, Endris A. Suraj

Walden Dissertations and Doctoral Studies

Sustainable Urban Development of Ethiopia lacks strategies to implement information systems management (ISM). Lacking appropriate ISM implementation has influenced the government’s plan on the four indicators of urban sustainability - Water, Air, Climate Change, and Population Growth. Grounded in the conceptual frameworks of Technology Acceptance Model (TAM) and Diffusion Of Innovation (DOI), the purpose of this qualitative single case study aims to explore ISM for sustainable urban development in Ethiopia. The participants were 12 Development Associates (DAs) who have been participating in implementing of ISM. Data was collected through a one-to-one interview, National documents, the Environmental Protection Office of Ethiopia, …

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Successful Information Technology Project Process Management Best Practices, Jude Oderaa Orazulike Jan 2022

Successful Information Technology Project Process Management Best Practices, Jude Oderaa Orazulike

Walden Dissertations and Doctoral Studies

Globally, most information technology projects (ITPs) are reported as unsuccessful. Poor project management practices have consistently been identified as the leading cause of ITP failures. However, ITP practitioners manage project processes in diverse ways without clear guiding principles in terms of what does or does not work in practice for success. Process management practices in projects were explored in this grounded theory qualitative study from a systems theory perspective. The purpose was to understand from project practitioners' experiences what guiding principles potentially influenced ITPs to success. These experiences were then analyzed to develop a theory describing how to best use …

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Analyzing Secure Access Strategies To Protect Clinical-Information Systems In The Healthcare Industry, Manjit S. Kang Jan 2022

Analyzing Secure Access Strategies To Protect Clinical-Information Systems In The Healthcare Industry, Manjit S. Kang

Walden Dissertations and Doctoral Studies

Securing patient health records within cloud-based health records is a critical security challenge for hospitals and healthcare organizations. Some information technology (IT) leaders working in the U.S. healthcare industry or hospitals are concerned with their patient cloud-based health records due to data breaches in their healthcare systems. Grounded in the task technology fit theory, the purpose of this qualitative pragmatic inquiry study was to explore strategies healthcare information leaders use to implement security procedures to protect patient health records on private cloud-based clinical information systems (CIS). The participants were six IT managers in metropolitan San Francisco Bay healthcare facilities. The …

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The Imperatives Of Political Will For Revenue Diversification In Delta State Nigeria, Benson Chukwuweike Ojoko Jan 2022

The Imperatives Of Political Will For Revenue Diversification In Delta State Nigeria, Benson Chukwuweike Ojoko

Walden Dissertations and Doctoral Studies

Proceeds from crude oil export account for about 90% of the revenue of the federal, state, and local governments in Nigeria. Given the vagaries of the international oil market, scholars have advocated the need for the government to look beyond oil for other revenue sources with little or no success to date. Despite the plethora of research on the phenomenon of political will, there is no research on how the construct affects revenue diversification at the subnational level. This study examined how central political will is in the design of expansionary revenue policies in Delta State, Nigeria. Developing an understanding …

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Strategies To Secure A Voice Over Internet Protocol Telephone System, Sherese Bernard Jan 2022

Strategies To Secure A Voice Over Internet Protocol Telephone System, Sherese Bernard

Walden Dissertations and Doctoral Studies

Voice over internet protocol (VoIP) provides cost-effective phone service over a broadband internet connection rather than analog telephone services. While VoIP is a fast-growing technology, there are issues with intercepting and misusing transmissions, which are security concerns within telecommunication organizations and for customers. Grounded in the routine activity theory, the purpose of this multiple case study was to explore strategies information technology (IT) security managers used to secure VoIP telephone systems in telecommunication organizations. The participants consisted of nine IT security managers from three telecommunication organizations in New York who possessed the knowledge and expertise to secure a VoIP telephone …

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The Naming Of Homo Bodoensis By Roksandic And Colleagues Does Not Resolve Issues Surrounding Middle Pleistocene Human Evolution, Eric Delson, Chris Stringer Jan 2022

The Naming Of Homo Bodoensis By Roksandic And Colleagues Does Not Resolve Issues Surrounding Middle Pleistocene Human Evolution, Eric Delson, Chris Stringer

Publications and Research

Roksandic et al. (2022) proposed the new species name Homo bodoensis as a replacement name for Homo rhodesiensis Woodward, 1921, because they felt it was poorly and variably defined and was linked to sociopolitical baggage. However, the International Code of Zoological Nomenclature includes regulations on how and when such name changes are allowed, and Roksandic et al.'s arguments meet none of these requirements. It is not permitted to change a name solely because of variable (or erroneous) later use once it has been originally defined correctly, nor can a name be modified because it is offensive to one or more …

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Examining Bias Against Women In Professional Settings Through Bifurcation Theory, Lauren Cashdan Jan 2022

Examining Bias Against Women In Professional Settings Through Bifurcation Theory, Lauren Cashdan

CMC Senior Theses

When it comes to women in professional hierarchies, it is important to recognize the lack of representation at the higher levels. By modeling these situations we hope to draw attention to the issues currently plaguing professional atmospheres. In a paper by Clifton et. al. (2019), they model the fraction of women at any level in a professional hierarchy using the parameters of hiring gender bias and internal homophily on behalf of the applicant. This thesis will focus on a key theory in Clifton et. al.’s analysis and explain its role in the model, specifically bifrucation analysis. In order to analyze …

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Review Of The Duck Factory: A History Of Waterfowl In North Dakota, By Mike Jacobs And Erik Fritzell, Douglas Johnson Jan 2022

Review Of The Duck Factory: A History Of Waterfowl In North Dakota, By Mike Jacobs And Erik Fritzell, Douglas Johnson

The Prairie Naturalist

It was by geological accident that North Dakota became the heart of duck production in the continental United States. When the Wisconsin glaciation retreated some 11,000 years ago, it left an uneven layer of glacial till over much of North Dakota and nearby states and provinces, an area termed the Prairie Pothole Region. Large blocks of ice in the glacial till eventually melted and formed depressions that became wetlands, or prairie potholes. These were embedded in a matrix of soil that, with millennia of growth by deep-rooted prairie plants, became rich topsoil. The wetlands, surrounded by luxuriant grassland, were ideal …

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Review Of Methods For Ecological Research On Terrestrial Small Mammals, By Robert Mccleery, Lynda R. Lafond Jan 2022

Review Of Methods For Ecological Research On Terrestrial Small Mammals, By Robert Mccleery, Lynda R. Lafond

The Prairie Naturalist

Small mammals are used in ecological studies throughout the world, yet the subject has lacked a clear reference that included upto- date methods pertaining to passive detection, molecular, and statistical approaches. In Methods for Ecological Research on Terrestrial Small Mammals, McCleery and his coauthors build on previous research references (Braun 2005, Sutherland 2006, Krebs 2014, Silvy 2020) and present methodologies specific to the study of small mammals that are applicable globally. Written as an asset for novice and experienced small mammal researchers alike, Methods for Ecological Research on Terrestrial Small Mammals is organized in a logical format, providing readers …

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Review Of Loon Lessons: Uncommon Encounters With The Great Northern Diver, By James D. Paruk, Kristin Bianchini Jan 2022

Review Of Loon Lessons: Uncommon Encounters With The Great Northern Diver, By James D. Paruk, Kristin Bianchini

The Prairie Naturalist

Gavia immer Brunnich (Common Loon) is a bird that has captivated bird watchers, wildlife enthusiasts, campers, cottagers, and others interested in the natural world for centuries. The loon also features prominently in Native American mythology. For many, the loon symbolizes the wildness of the north, and it is often used as a sentinel of lake health. Indeed, the Common Loon has inspired a wealth of literature, both scientific and popular, describing this species’ ecology, behavior, and fitness in the face of environmental changes. To this literature, Loon Lessons: Uncommon Encounters with the Great Northern Diver adds a complete and accurate …

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Review Of Spiders Of North America, By Sarah Rose, Michael L. Draney Jan 2022

Review Of Spiders Of North America, By Sarah Rose, Michael L. Draney

The Prairie Naturalist

A field guide to spiders, the dominant terrestrial predator group, has long been a desire for North American naturalists, biologists, and spider fans, but not surprisingly, the first “real” field guide has been a long time coming. The diversity of spiders, with over 50,000 known species globally (World Spider Catalog 2022) and around 4,000 in North America north of Mexico (Rose 2022), is well beyond the diversity of more traditional field guide targets such as birds (about 1,000 species north of Mexico; American Birding Association 2022) or butterflies (about 725 species north of Mexico; North American Butterfly Association 2022). Also, …

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Second Twenty-Five Year Index: Volumes 26–50, 1994–2018, Jane E. Austin Jan 2022

Second Twenty-Five Year Index: Volumes 26–50, 1994–2018, Jane E. Austin

The Prairie Naturalist

The first 50 years of the Prairie Naturalist reside on the shelves of libraries and personal collections. The articles and notes published over those years provide invaluable knowledge about Great Plains biota, communities, conservation, and landscape ecologies. Awareness of the wealth of information in those 50 print volumes has been limited, relying on references from other published papers or the limited number of articles that have been made available online by authors. This index serves as resource for individuals to digitally tap into the information published since 1994. This index, together with the first 25-year index, serves to complement the …

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Design And Analysis Of Marangoni-Driven Robotic Surfers, Mitchel L. Timm Jan 2022

Design And Analysis Of Marangoni-Driven Robotic Surfers, Mitchel L. Timm

Dissertations, Master's Theses and Master's Reports

We designed and experimentally studied the dynamics of two robotic systems that surf along the water-air interface. The robots were self-propelled by means of creating and maintaining a surface tension gradient resulting from an asymmetric release of isopropyl alcohol (IPA). The imbalance in the distribution of surface tension surrounding the robots generates a propulsive force commonly referred to as Marangoni propulsion. First, we considered a single surfer, which was custom-made with novel control mechanisms that allow for both forward motion and steering to be remotely adjusted solely through the manipulation of local surface stresses. We analyzed the performance of this …

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Collective Hydrodynamics Of Robotic Fish, Rohit S. Pandhare Jan 2022

Collective Hydrodynamics Of Robotic Fish, Rohit S. Pandhare

Dissertations, Master's Theses and Master's Reports

Many animals in nature travel in groups either for protection, survival, or endurance. Among these, fish do so under the burden of hydrodynamic loads, which incites questions as to the significance of the multi-body fluid-mediated interactions that facilitate collective swimming. We study such interactions in the idealized setting of a rotational array of robotic fish whose tails undergo a prescribed flapping motion, but whose swimming speed is determined as a natural result of the hydrodynamic effects. Specifically, we examine how the measured collective speed of the swimmers varies with the imposed frequency and amplitude of their tail flapping, and with …

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Drivers And Seasonal Variability Of Redox-Sensitive Metal Chemistry In A Shallow Subterranean Estuary, Alison E. O'Connor, Elizabeth A. Canuel, Aaron J. Beck Jan 2022

Drivers And Seasonal Variability Of Redox-Sensitive Metal Chemistry In A Shallow Subterranean Estuary, Alison E. O'Connor, Elizabeth A. Canuel, Aaron J. Beck

VIMS Articles

The subterranean estuary (STE) has been historically defined in terms of the mixing of saline and fresh water, in an analogy to surface estuaries. However, redox gradients are also a defining characteristic of the STE and influence its role as a source or sink for metals in the environment. Approaching the STE from a redox-focused biogeochemical perspective (e.g., considering the role of microbial respiration and availability of organic matter) provides the ability to quantify drivers of metal transport across spatial and temporal scales. This study measured the groundwater composition of a shallow STE over 2 years and used multiple linear …

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Dynamical Controls Of The Eastward Transport Of Overwintering Calanus Finmarchicus From The Lofoten Basin To The Continental Slope, Huizi Dong, Meng Zhou, Walker O. Smith Jr., Et Al Jan 2022

Dynamical Controls Of The Eastward Transport Of Overwintering Calanus Finmarchicus From The Lofoten Basin To The Continental Slope, Huizi Dong, Meng Zhou, Walker O. Smith Jr., Et Al

VIMS Articles

Diapausing populations of Calanus finmarchicus at depth in the Lofoten Basin (LB) return to the continental shelf and slope off the Lofoten-Vesterålen Islands during the phytoplankton spring bloom to feed and spawn, forming surface swarms with a great abundance. To study how overwintering populations of C. finmarchicus move with the deep currents and return to the shelf, Lagrangian transport characteristics of particles in deep water between 2008 and 2019 were analyzed using Global Ocean Reanalysis and Simulation re-analysis data and Lagrangian Coherent Structures (LCSs). Our analyses revealed that persistent eastward transport of diapausing C. finmarchicus between LB and continental slope …

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A Study Of The Impact Of The Covid-19 Pandemic On Integrated Mathematics Ii Ohio State Test Scores, Jessica L. Banas Jan 2022

A Study Of The Impact Of The Covid-19 Pandemic On Integrated Mathematics Ii Ohio State Test Scores, Jessica L. Banas

Master of Science in Mathematics

The COVID-19 pandemic took hold of our world and affected nearly every aspect of our lives. It was especially impactful to adolescents, who were already experiencing major stressors and changes in their lives without the added effects of the pandemic. Instead of worrying about who they are going to go to prom with or sitting with at lunch, students may have struggled to help with childcare, how their learning will be delivered to them the following week, or the effects of little to no social interactions. Consistent stressors can lead adolescents to develop dysfunctional neurobehaviour or simply fall into the …

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An Investigation Of The Effects Of Gender, Socioeconomic Status, And Age On Mathematics Outcomes Of In-Person And Online Learning, Stephanie L. Spencer Jan 2022

An Investigation Of The Effects Of Gender, Socioeconomic Status, And Age On Mathematics Outcomes Of In-Person And Online Learning, Stephanie L. Spencer

Master of Science in Mathematics

The coronavirus pandemic created a unique situation where a rural school district in western Ohio gave students a choice to attend school in-person with face-to-face teachers or take courses online through an asynchronous online platform. The state mathematics grade level and end-of-course test scores were taken by both groups of students in the spring of 2021. An analysis of the state grade level test scores for grades 3-8 revealed significant predictors of instructional mode, socioeconomic status, and gender. Taking courses online predicted a lower score by 23 points, the socioeconomically disadvantaged scored 20 points lower, and females were behind by …

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Community Colleges & Athletics: Academic Success Of Student-Athletes, Courtney Calkins Jan 2022

Community Colleges & Athletics: Academic Success Of Student-Athletes, Courtney Calkins

Master of Science in Mathematics

This research examines the relationship between community colleges and athletics. There is little research done on the interaction between athletes, on-campus housing, and community colleges. Studies show that the more students are involved in the college, the more likely they are to stay at the school they are at and succeed academically. Little research is done at community colleges because they often lack athletics or housing, but there is a growth in the number of athletic teams in the junior college system as well as the number of schools that provide housing for their students. This research is to help …

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Predicting Academic Success From Involvement In Athletic Extracurricular Activities, Fine-Arts Extracurricular Activities, Or Both Extracurricular Activities, Matthew Garman Jan 2022

Predicting Academic Success From Involvement In Athletic Extracurricular Activities, Fine-Arts Extracurricular Activities, Or Both Extracurricular Activities, Matthew Garman

Master of Science in Mathematics

Public education at all levels has sustained a torrent of modulation in recent years, most notably due to the repercussions from the Covid-19 global pandemic. Schools are offering more remote/online options for students as well as utilizing hybrid curriculums taking advantage of the evermore widespread availability of technology and connectivity, even in our more rural school districts. The ramifications of these modifications to the traditional classroom setting are still unknown, and as such many areas of the public education system need to be closely monitored. One such area would be extracurricular opportunities for students, especially those opting for remote/hybrid curriculums. …

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Predicting Success On The Nclex-Rn For Associate Degree Nursing Students From A Small Public University, Jeffery Dittenber Jan 2022

Predicting Success On The Nclex-Rn For Associate Degree Nursing Students From A Small Public University, Jeffery Dittenber

Master of Science in Mathematics

The success of an associate degree nursing program is often dichotomized into either passing or failing the National Council Licensure Examination for registered nursing (NCLEX-RN). Not only are individual students’ nursing future dependent on successfully navigating this examination, but the licensing and accreditation of nursing education programs are determined by maintaining consistent first-time pass rates of their graduates. This study will investigate academic and demographic factors to determine significant predictors of first-time pass on the NCLEX-RN for the associate degree in nursing program at Shawnee State University.

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Are Sores On The Grit-S Questionnaire And Class Participation Significant Predictors Of Success In An Online College Mathematics Course?, Mikhail Mednik Jan 2022

Are Sores On The Grit-S Questionnaire And Class Participation Significant Predictors Of Success In An Online College Mathematics Course?, Mikhail Mednik

Master of Science in Mathematics

The Covid-19 pandemic significantly disrupted past norms in higher education. The immediate impact was felt worldwide, as an abrupt shift to remote learning made colleges more invested in online courses than ever before. Although not as evident, another significant change in higher education included a shift away from the use of traditional cognitive predictors (SAT and ACT scores) by colleges and universities, to admit prospective applicants. These trends escalate the need for faculty and administrators to identify non-cognitive predictors of achievement in online college courses, particularly in core subjects like mathematics. This study examined whether grit and participation are predictive …

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An Examination Of Student Achievement In Algebra I Inclusion Classes That Use Short-Cycle Formative Assessments, Lorenzo A. Rashid Jan 2022

An Examination Of Student Achievement In Algebra I Inclusion Classes That Use Short-Cycle Formative Assessments, Lorenzo A. Rashid

Master of Science in Mathematics

No abstract provided.

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The Influence Of Bilingualism On Mathematical Achievement: An Analysis Across Different Countries, Joshua Rodriguez Jan 2022

The Influence Of Bilingualism On Mathematical Achievement: An Analysis Across Different Countries, Joshua Rodriguez

Master of Science in Mathematics

The effects of bilingualism, socioeconomic status, parental education, parental income, and a child’s positive attitude on mathematical achievement have been quite disputed topics during the past decades. Using the foundations of Cummins’ threshold and developmental interdependence hypotheses, Coleman’s theory on social capital, Vygotsky’s theory on language, and the functional attitude theory, this study investigates if and how effectively these attributes predict mathematical achievement in fourth-grade students. Using the latest iteration of the Trends in International Mathematics and Science Study, multiple regression models evaluate the consequences of multiple language use, individual social standing, and positive attitude effects on mathematical achievement with …

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Tripod Deployment: Yr071205 To Yr080204, Adv, Clay Bank, York River Virginia, Grace M. Massey, Carl T. Friedrichs Jan 2022

Tripod Deployment: Yr071205 To Yr080204, Adv, Clay Bank, York River Virginia, Grace M. Massey, Carl T. Friedrichs

Data

Dataset consists of burst data collected as part of a tripod deployment. The tripod included the following instruments: Acoustic Doppler Velocimeter (ADV), YSI6600 CTD, Sequoia LISST.

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Tripod Deployment: Yr090512 To Yr090610, Adv, Clay Bank, York River Virginia, Grace M. Massey, Carl T. Friedrichs Jan 2022

Tripod Deployment: Yr090512 To Yr090610, Adv, Clay Bank, York River Virginia, Grace M. Massey, Carl T. Friedrichs

Data

Dataset consists of burst data collected as part of a tripod deployment. The tripod included the following instruments: Acoustic Doppler Velocimeter (ADV), YSI6600 CTD, Sequoia LISST.

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Tripod Deployment: Yr100224 To Yr100908, Adv, Clay Bank, York River Virginia, Grace M. Massey, Carl T. Friedrichs Jan 2022

Tripod Deployment: Yr100224 To Yr100908, Adv, Clay Bank, York River Virginia, Grace M. Massey, Carl T. Friedrichs

Data

Dataset consists of burst data collected as part of a tripod deployment. The tripod included the following instruments: Acoustic Doppler Velocimeter (ADV), YSI6600 CTD.

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