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Articles 199171 - 199200 of 1113949
Full-Text Articles in Entire DC Network
Language As A Factor In Aviation Accidents And Serious Incidents: A Handbook For Accident Investigators Ed. 2, Elizabeth Mathews, Anthony T. Brickhouse, Joan Carson Ph.D., Enrique Valdes
Language As A Factor In Aviation Accidents And Serious Incidents: A Handbook For Accident Investigators Ed. 2, Elizabeth Mathews, Anthony T. Brickhouse, Joan Carson Ph.D., Enrique Valdes
Handbooks
The purpose of this handbook is to support accident investigators in the identification and consideration of possible language factors in aviation accidents and serious incidents. This handbook provides guidance, background information, and tools that will assist accident investigators in conducting a systematic review of possible language factors.
Biodiversity Of Marine Microbes Is Safeguarded By Phenotypic Heterogeneity In Ecological Traits, Susanne Menden-Deuer, Julie Rowlett, Medet Nursultanov, Sinead Collins, Tatiana Rynearson
Biodiversity Of Marine Microbes Is Safeguarded By Phenotypic Heterogeneity In Ecological Traits, Susanne Menden-Deuer, Julie Rowlett, Medet Nursultanov, Sinead Collins, Tatiana Rynearson
Graduate School of Oceanography Faculty Publications
Why, contrary to theoretical predictions, do marine microbe communities harbor tremendous phenotypic heterogeneity? How can so many marine microbe species competing in the same niche coexist? We discovered a unifying explanation for both phenomena by investigating a non-cooperative game that interpolates between individual-level competitions and species-level outcomes. We identified all equilibrium strategies of the game. These strategies represent the probability distribution of competitive abilities (e.g. traits) and are characterized by maximal phenotypic heterogeneity. They are also neutral towards each other in the sense that an unlimited number of species can co-exist while competing according to the equilibrium strategies. Whereas prior …
Usa Libraries Newsletter, July/August 2021, Usa Libraries
Usa Libraries Newsletter, July/August 2021, Usa Libraries
USA Libraries Newsletter
USA Libraries Newsletter for July/August 2021
Designing Reactive Oxygen Species Producing Materials For Cancer And Wastewater Treatments, Nil Kanatha Pandey
Designing Reactive Oxygen Species Producing Materials For Cancer And Wastewater Treatments, Nil Kanatha Pandey
Physics Dissertations - Archive
This dissertation is focused on using nanotechnology to improve conventional photodynamic therapy (PDT) and advanced oxidation processes (AOPs) for cancer and wastewater treatments, respectively. Even though PDT has a great potential for cancer treatment, the insufficient penetration depth of the external light source and hypoxic nature of the tumor microenvironment severely hinder PDT’s applications in clinical settings. Fortunately, microwaves (MWs) offer a potential opportunity to overcome these limitations. In the first part of the dissertation, a facile synthesis method of copper-cysteamine (Cu-Cy) nanoparticles is discussed, and their reactive oxygen species (ROS) production and cancer cell killing performances upon MW exposure …
Integrating Game Mechanics With Basic Programming Concepts To Teach K-12 Students, Olivia Nche
Integrating Game Mechanics With Basic Programming Concepts To Teach K-12 Students, Olivia Nche
All Dissertations
This research seeks to introduce concepts for programming, a key element of computing, to K-12students. A central goal is to better understand the bene ts of concept-integrated game mechanics in teaching basic programming concepts. The context of this research is also one of broadening participation. Thus the studies have been conducted in conjunction with two related projects| Boeing Summer coding camps and the NSF Culturally Responsive Computer Science (CR oCS) Project{both of which targeted underrepresented populations in computing with focus on programming. The basic programming concepts considered in this research involve integer and Boolean variables and include assignments, sequencing of …
The Performance Of Elementary Preservice Student Teachers Based On Interdisciplinary Curriculum Design, Ying-Feng Wang
The Performance Of Elementary Preservice Student Teachers Based On Interdisciplinary Curriculum Design, Ying-Feng Wang
University of South Florida (USF) M3 Publishing
The study was aimed at exploring the performance exhibited by preservice student teachers in interdisciplinary curriculum design for elementary science in Taiwan. The subjects are eighty elementary preservice teachers from the National Metropolitan University. They designed integrated science curriculum and instruction by incorporating what they learned from the Elementary Science Methods course. The lesson plans, mind maps, artwork and feedback performed by the preservice student teachers were collected for data analyses. The findings indicated that eighty percent of preservice student teachers exhibited a high degree of interest in science instructional planning across different disciplines. They presented science lesson planning with …
Overarching Themes Of Moocs: An Integrative Literature Review, Gregory Bunn, Doris Lee
Overarching Themes Of Moocs: An Integrative Literature Review, Gregory Bunn, Doris Lee
University of South Florida (USF) M3 Publishing
Massive open online courses (MOOCs) represent a growing means of offering mass instruction to students separated across distances and countries. MOOCs provide a flexible platform for instruction across numerous disciplines via the Internet. By incorporating a variety of online environments and discussion formats, MOOCs enable learners to engage with content and instructions in new ways. As MOOCs continue to evolve in design and involve more students, it becomes important to determine overarching themes in the literature discussing MOOCs. Such an investigation offers the potential to reveal new connections and ideas pertinent to the successful design and running of online courses. …
Systematic Review Of Artificial Intelligence In Higher Education (2000-2020) And Future Research Directions, Rajat Gera, Priyanka Chadha
Systematic Review Of Artificial Intelligence In Higher Education (2000-2020) And Future Research Directions, Rajat Gera, Priyanka Chadha
University of South Florida (USF) M3 Publishing
The goal of this study is to synthesize the findings, methodology and research themes of peer reviewed studies on Artificial Intelligence in higher education, published between 2000 to 2020. Twenty-nine articles were selected for review by following the PRISMA approach. The demographical and thematic trends suggest that most research is skewed towards few geographical locations (USA, Europe, India, China, Hong-Kong) and recent time periods (2018-2020) and scattered across publications from varied disciplinary traditions. Taiwan and United States contributed most to the number of studies, with 2017 being the most fruitful year. Vectors as well as decision trees were the most …
Accessibility And Usage Of Cultural Heritage By The Disabled Users: Understanding Of Parents’ Points Of View, Valentina Perciavalle, Elisabetta Sagone
Accessibility And Usage Of Cultural Heritage By The Disabled Users: Understanding Of Parents’ Points Of View, Valentina Perciavalle, Elisabetta Sagone
University of South Florida (USF) M3 Publishing
Background: Italian educational system express a growing attention toward the strategies utilized for improving the accessibility and participation for all individuals, but not always for the disabled users’ needs, underestimating the value of inclusive education in various contexts of everyday life. Method: A preliminary study with 82 parents of children and preadolescents with intellectual disability, sensory impairments, and physical disability was carried out adopting the “inclusive research paradigm” to investigate parents’ perceptions, levels of satisfaction, and attitudes toward obstacles/facilitators to accessibility and usage of cultural heritage sites in Sicilian context. Results: Using an online questionnaire, parental satisfaction degree …
Destination Management During The Health Emergency: A Bibliometric Analysis, Valentina Della Corte, Giovanna Del Gaudio, Giuliana Nevola, Erico Di Taranto, Simone Luongo
Destination Management During The Health Emergency: A Bibliometric Analysis, Valentina Della Corte, Giovanna Del Gaudio, Giuliana Nevola, Erico Di Taranto, Simone Luongo
University of South Florida (USF) M3 Publishing
The pandemic emergency has shifted the attention from a tourism focused on economic growth to a tourism focused on social wellbeing (Everingham & Chassagne, 2020). Destinations are required to answer new emerging needs in terms of health and safety without precluding the emotional side of the leisure travel experience. One of the ways destinations are rethinking their management is the introduction of innovation in terms of sharing knowledge, creation of new ideas and engagement of stakeholders (Pillmayer, Scherle & Volchek, 2021). Destinations need to strengthen their own networking of operators and relations to reduce risk perception and to ensure security …
The Role Of Quality Management Applications For Corporate Reputations, Ibrahim Sapaloglu, Isik Cicek
The Role Of Quality Management Applications For Corporate Reputations, Ibrahim Sapaloglu, Isik Cicek
University of South Florida (USF) M3 Publishing
In today's conditions, the content of the concept of stakeholder has expanded and its importance has increased in organizations. The increase in the expectations of the stakeholders from the institutions they are involved in is a result of this situation, and one factor in their decision to continue the stakeholder relationship is the stakeholders' corporate reputation evaluations. Corporate reputation, which is defined as a set of values that express how the organization is perceived by social stakeholders, is a reflection phenomenon that is evaluated not only for customers but also for employees, and it has become one of the factors …
In Search Of The Effective Mission Statement: Structural Support Of The Firm’S Culture To Augment Financial Performance, Seong-Yuen Toh
In Search Of The Effective Mission Statement: Structural Support Of The Firm’S Culture To Augment Financial Performance, Seong-Yuen Toh
University of South Florida (USF) M3 Publishing
This study investigates the effectiveness of the mission statement from the strategic alignment perspective while considering the structural support of HR system towards the culture of the firm. Based on the resource-based view theory of the firm, this study posits that the valid mission statement contributes towards sustainable competitive advantage when the HR system is aligned with a valid mission statement and is supportive of the firm’s culture in a double mediation model. The results support this claim and contribute new understanding that strategic alignment requires structural support of the firm’s culture for mission statement effective. Furthermore, this indicates the …
Three Keys Of Development: Knowledge, Efficiency And Innovative Entrepreneurship, Irfan Kalayci, Ali Soylu, Baris Aytekin
Three Keys Of Development: Knowledge, Efficiency And Innovative Entrepreneurship, Irfan Kalayci, Ali Soylu, Baris Aytekin
University of South Florida (USF) M3 Publishing
The change in the structure and composition of production factors have always been occurred in the world production history. The competition between sectors and also within each sub-sector that comprise them continues. In this sense, competition has always fed change, transformation and progress. The process phenomenon is the change and transformation movements that occur in the production processes that economies focus on. In this respect, the classification steps emphasize this development. In this study, we discuss economic groups (resource-oriented, productivity-oriented, and innovation-oriented) in terms of drivers of economic development (knowledge, efficiency, innovative entrepreneurship, and productivity). The 3rd Industrial Revolution starting …
Innovative Entrepreneurship In Turkey: Micro And Macro Perspectives, Irfan Kalayci, Baris Aytekin, Ali Soylu
Innovative Entrepreneurship In Turkey: Micro And Macro Perspectives, Irfan Kalayci, Baris Aytekin, Ali Soylu
University of South Florida (USF) M3 Publishing
Entrepreneurship is a scarce factor of production in the economy like labor and capital; it is a business area which is culture and finance related. Turkey is an average country in the entrepreneurship world league. This negative situation in terms of entrepreneurship also continues in terms of innovation and innovative entrepreneurship. Although Turkey is counted among the world's GDP in the rich, in terms of the capacity to innovate is among the poorest. This paper discusses how Turkey can change this "reverse fortune" through developing an internal innovation culture and opening this culture to the outside world. Naturally, the ongoing …
Machine Learning Framework For Nonlinear And Interaction Relationships Involving Categorical And Numerical Features, Shirish Mohan Rao
Machine Learning Framework For Nonlinear And Interaction Relationships Involving Categorical And Numerical Features, Shirish Mohan Rao
Industrial, Manufacturing, and Systems Engineering Dissertations - Archive
Traditionally, physical scientific experiments have been conducted extensively to study and understand the behavior of a process or a system. With the advancement of computing technology in recent years, computer codes and algorithms are used as simulators to replicate behavior of a complex system. Such use of computers to study a system is termed as ‘computer experiments.’ The process involves selecting specific points or runs in the design space in order to maximize information about the system in minimal runs. These computer models are high dimensional and can take a long time to simulate. Metamodels (or surrogate models) built using …
Testing Artificial Intelligence-Based Software Systems, Jaganmohan Chandrasekaran
Testing Artificial Intelligence-Based Software Systems, Jaganmohan Chandrasekaran
Computer Science and Engineering Dissertations - Archive
Artificial Intelligence (AI)-based software systems are increasingly used in high-stake and safety-critical domains, including recidivism prediction, medical diagnosis, and autonomous driving. There is an urgent need to ensure the reliability and correctness of AI-based systems. At the core of AI-based software systems is a machine learning (ML) model that is used to perform tasks such as classification and prediction. Unlike software programs, where a developer explicitly writes the decision logic, ML models learn the decision logic from a large training dataset. Furthermore, many ML models encode the decision logic in the form of mathematic functions that can be quite abstract …
Optimizing The Demand And Distribution Of Power In Smart Grids, Saifullah Khalid
Optimizing The Demand And Distribution Of Power In Smart Grids, Saifullah Khalid
Computer Science and Engineering Dissertations - Archive
The electricity is generated in bulk power plants and transported to the end-user through the transmission and distribution networks. The process incurs heavy losses adding to the operational costs. Secondly, fossil fuels dominate energy generation and are a major source of greenhouse gases. Thirdly, the power grid is vulnerable to natural disasters. The smart grid addresses these challenges by integrating distributed energy resources (DERs) in the distribution system closer to the load and with greater penetration of renewable energy. Renewable energy is key to cutting carbon emissions due to fossil fuel-based electricity generation and reducing operating costs. It can also …
Multi-Player H1 Differential Game Using On-Policy And Off-Policy Reinforcement Learning, Peiliang An
Multi-Player H1 Differential Game Using On-Policy And Off-Policy Reinforcement Learning, Peiliang An
Electrical Engineering Theses - Archive
This work studies a multi-player H-infinity differential game for systems of general linear dynamics. In this game, multiple players design their control inputs to minimize their cost functions in the presence of worst-case disturbances. We first derive the optimal control and disturbance policies using the solutions to Hamilton-Jacobi-Isaacs (HJI) equations. We then prove that the derived optimal policies stabilize the system and constitute a Nash equilibrium solution. Two integral reinforcement learning (IRL) -based algorithms, including the policy iteration IRL and o -policy IRL, are developed to solve the differential game online. We show that the off-policy IRL can solve the …
Wi-Fi-Based Indoor Localization Using Model-Based And Data-Driven Approaches, Ayoub Idelhaj
Wi-Fi-Based Indoor Localization Using Model-Based And Data-Driven Approaches, Ayoub Idelhaj
Electrical Engineering Theses - Archive
This thesis investigates model-based and data-driven approaches for indoor localization using the Received Signal Strength Indicator (RSSI) of Wi-Fi signals. We study multiple model-based indoor localization approaches, including the free space path loss model, the log-distance path loss model, the International Telecommunication Union (ITU) model, and a nonlinear regression model. We examine their indoor localization accuracy using raw RSSI values, and filter RSSI values passed through a Moving Average filter and a Kalman filter. For data driven approaches, we employ a family of Extreme Learning Machine (ELM) algorithms including Basic-ELM, Online Sequential-ELM (OS-ELM), Hierarchical-ELM (H-ELM), and Kernel-ELM (K-ELM), to find …
Smith Neilson Library: The Sustainability Story, Smith College
Smith Neilson Library: The Sustainability Story, Smith College
The New Neilson Library
The complete "Sustainability Story" of the New Neilson Library project.
In Re: Huping Hu: Quantum Entanglement, Medical Innovation, And Patentability On The Scientific “Fringe”., Christopher M. Holman
In Re: Huping Hu: Quantum Entanglement, Medical Innovation, And Patentability On The Scientific “Fringe”., Christopher M. Holman
Faculty Works
In a recently issued non-precedential decision, In re Huping Hu, the Federal Circuit affirmed the PTO’s rejection of patent claims based on the incredible nature, and presumed inoperability, of the claimed invention. The would-be inventors, a husband-and-wife team both having have PhDs from the University of Illinois at Champaign-Urbana, claim to have discovered how to harness “quantum entanglement” to achieve “non-local” manipulation of water, and even more fantastically, manipulation of a human subject that has ingested the water. For example, they assert that they can quantum entangle a sample of water, divide the water into two portions, and have a …
Improving Disaster Resilience By Quantifying Wildland Urban Interface Community Ember Exposure, Dac Trong Nguyen
Improving Disaster Resilience By Quantifying Wildland Urban Interface Community Ember Exposure, Dac Trong Nguyen
All Dissertations
Spot fire due to the ember accumulation is considered as the major cause of Wildland Urban Interface (WUI) structure ignition during wildfires. This dissertation develops techniques to investigate the regions on the roof top of a series of buildings which are likely to see the ember build up during an ember storm as well as study the accumulation rate of ember on the roofs. The results from experiments suggested that the vulnerable roof regions where embers have a significant chance of accumulated after landing are highly correlated to the aerodynamic forces on the roof. To be specific, the regions with …
Noninvasive Traumatic Brain Injury Therapeutics Effects And Biosensor Implants Optimization In Rodents, Claire Eleanor Jones
Noninvasive Traumatic Brain Injury Therapeutics Effects And Biosensor Implants Optimization In Rodents, Claire Eleanor Jones
Doctoral Dissertations
Traumatic brain injuries (TBI) result in impaired motor and sensory skills, which amplify over time due to the natural immune responses to trauma. Currently, there is no therapeutic on the market to treat the secondary damage from the cascading events caused by neurotrauma. In an experimental treatment method, poly(lactide-co-glycolide)-graft-polyethenimine (PgP) is used as a vector for drug delivery. This previously described method has successfully treated experimental spinal cord injury (SCI) using the nanoparticles for Rolipram (Rm) delivery, a phosphodiesterase inhibitor, to repair damage in a rat model. We proposed to utilize this same treatment to reduce secondary axonal damage after …
Emotional Labor: An Affective-Commitment Perspective, Matthew J. Vosburg
Emotional Labor: An Affective-Commitment Perspective, Matthew J. Vosburg
Doctoral Dissertations
The emotional-labor literature asserts that individuals respond to emotion-display requirements, called display rules, with surface and deep acting. However, surface acting, but not deep acting, relates to deleterious occupational-health outcomes. Deep acting, therefore, is a strategy organizations should promote, should they wish to prioritize the well-being of their employees. Unfortunately, little research exists that clarifies the emotional-labor-choice process. The current study used the job demands-resources model and self-determination theory to hypothesize that affective organizational commitment would differentially moderate the relationship between display rules and the methods of emotional labor. To evaluate this study's hypotheses, 320 participants on an online survey …
The Role Of Video Game Play, Gender Roles, And Career Decision Self-Efficacy In Development Of Stem Career Interests & Motivation, Michael Saunders
The Role Of Video Game Play, Gender Roles, And Career Decision Self-Efficacy In Development Of Stem Career Interests & Motivation, Michael Saunders
Doctoral Dissertations
The gender wage gap, disadvantaging working women, continues to grow despite progress toward women’s rights and occupational equity. With the world economy prioritizing growth in technological industries, the underrepresentation of women in science, technology, engineering, and mathematics (STEM) fields perpetuates systemic gender inequity. Further, given traditional social gender roles, women and girls may be less likely than boys and men to pursue STEM careers. Though specialized programs seek to grow the number of girls and young women engaged in STEM-related education and prepare them for the growing demand for STEM laborers, these programs are regional, seasonal, and not widely available …
An Examination Of Organizational Decision-Making: A Case Approach, Olivia Reinecke
An Examination Of Organizational Decision-Making: A Case Approach, Olivia Reinecke
Doctoral Dissertations
This applied dissertation offered insights about the scientist-practitioner gap and examined the process of organizational decision making using a real case from a large United States manufacturing company. Historical records of employee work hours were extracted and compiled from several of the company's databases, along with recent plant performance metrics. These archival data were used to evaluate the relationship between the percentage of each plant's population working overtime (i.e., overtime utilization) and each plant’s performance on various manufacturing metrics. This comparison was made using a median split approach, such that the performance of plants with an overtime utilization above the …
Credit Card Security System And Fraud Detection Algorithm, Baker Al-Smadi
Credit Card Security System And Fraud Detection Algorithm, Baker Al-Smadi
Doctoral Dissertations
Credit card fraud is one of the most critical threats affecting individuals and companies worldwide, particularly with the growing number of financial transactions involving credit cards every day. The most common threats are likely to come from database breaches and identity theft. All these threats threat put the security of financial transactions at severe risk and require a fundamental solution.
This dissertation aims to suggest a secure online payment system that significantly improves credit card security. Our system can be particularly resilient to potential cyber-attacks, unauthorized users, man-in-the-middle, and guessing attacks for credit card number generation or illegal financial activities …
Novel Methods For Determining Polymer Content And Polymer Degradation In Asphalt Binder, Roksana Hossain
Novel Methods For Determining Polymer Content And Polymer Degradation In Asphalt Binder, Roksana Hossain
Doctoral Dissertations
Styrene-butadiene-styrene (SBS) is the most common modifier used in asphalt binder modification because of its superior performance compared to some others that are used. SBS modified asphalt binder increases the rutting resistance and decreases the fatigue and thermal cracking susceptibility of asphalt pavement. However, SBS modified asphalt binder tends to separate and is subjected to thermal degradation during construction and aging degradation during its service life. As a result, quality control of SBS modified asphalt binder is needed, although no standard test method is available to quantify SBS degradation due to aging.
In this study, two methods for quantifying SBS …
Pervasive Changes In Stream Intermittency Across The United States, Kendra E. Kaiser
Pervasive Changes In Stream Intermittency Across The United States, Kendra E. Kaiser
Geosciences Faculty Publications and Presentations
Non-perennial streams are widespread, critical to ecosystems and society, and the subject of ongoing policy debate. Prior large-scale research on stream intermittency has been based on long-term averages, generally using annually aggregated data to characterize a highly variable process. As a result, it is not well understood if, how, or why the hydrology of non-perennial streams is changing. Here, we investigate trends and drivers of three intermittency signatures that describe the duration, timing, and dry-down period of stream intermittency across the continental United States (CONUS). Half of gages exhibited a significant trend through time in at least one of the …
Combustion Of Hydroxylammonium Nitrate Based Monopropellants, Robert Edwin Ferguson
Combustion Of Hydroxylammonium Nitrate Based Monopropellants, Robert Edwin Ferguson
Open Access Theses & Dissertations
"Green" monopropellants based on hydroxylammonium nitrate (HAN) are of interest for replacing highly toxic hydrazine in space propulsion systems and for other applications. Further, gelling such propellants may offer additional advantages such as the long-term stability of compositions with added energetic and catalytic particles in suspension. However, the combustion mechanisms of HAN-based monopropellants and the effect of gelling on their combustion characteristics are poorly understood. In the present work, combustion of an aqueous HAN/methanol solution (70.1 wt% HAN and 14.9 wt% methanol) was studied in a strand burner at nitrogen pressures up to 30 MPa. A version gelled with 1 …