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2019

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Leaving Stem: An Examination Of The Stem To Non-Stem Major Change And How The Stem Curriculum Relates To Academic Achievement In Non-Stem Fields, Zachary M. Romash Jun 2019

Leaving Stem: An Examination Of The Stem To Non-Stem Major Change And How The Stem Curriculum Relates To Academic Achievement In Non-Stem Fields, Zachary M. Romash

Seton Hall University Dissertations and Theses (ETDs)

The lack of student persistence in the Science, Technology, Engineering and Mathematics (STEM) fields has been widely researched in recent years. Due to the high attrition rates in STEM fields and the shortage of STEM workers in the United States, research on STEM attrition has focused on identifying factors that cause STEM attrition and ways to increase STEM persistence. While these studies are helpful to understand STEM attrition, researchers have ignored what happens to the students who fail to persist in the STEM fields. Instead of focusing on the causes of STEM attrition, this study focused on the STEM to …

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A Soft-Robotic Harbor Porpoise Pectoral Fin Driven By Coiled Polymer Actuators As Artificial Muscles, Robert Hunt, Sarah Trabia, Zakai Olsen, Kwang Kim Jun 2019

A Soft-Robotic Harbor Porpoise Pectoral Fin Driven By Coiled Polymer Actuators As Artificial Muscles, Robert Hunt, Sarah Trabia, Zakai Olsen, Kwang Kim

Mechanical Engineering Faculty Research

Biomimicry is an approach in science and engineering to overcome human challenges by designing materials and systems modeled after nature. Selected applications of biomimicry include catheters, hearing devices, and artificial appendages such as arms, legs, and fingers. The inspiration for this study is the hydrofoil-like structured pectoral fin of the harbor porpoise whale that is ultimately useful for studying fluid-structure interactions, drag, lift, and laminar-to-turbulent transitions. The pectoral fin is fabricated by manipulating computed tomography (CT) scans into 3D models using Simpleware ScanIP and post-processed in Autodesk for printing. An array of thermally driven coiled polymer actuators (CPA) fabricated from …

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The Weekly Challenger, June 27, 2019, The Weekly Challenger, Et Al Jun 2019

The Weekly Challenger, June 27, 2019, The Weekly Challenger, Et Al

Weekly Challenger Newspaper Collection

The June 27, 2019, issue of The Weekly Challenger.

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Schizotypy As A Predictor For Social Media Use And Internet Addiction Behaviors In Emerging Adults, Devin Massaro Jun 2019

Schizotypy As A Predictor For Social Media Use And Internet Addiction Behaviors In Emerging Adults, Devin Massaro

Theses and Dissertations

This study examined the unique domains/symptom clusters within schizotypy as they relate to Facebook use and internet addiction behaviors, while controlling for co-morbid disorders such as depression and anxiety. Using an online survey, this study measured electronic media use, internet addiction behavior, and schizotypy in 270 undergraduate students (aged 18-30). We expected mood symptoms of anxiety and depression to predict both internet addiction and Facebook use in this sample, and controlled for these variables accordingly. We hypothesized that schizotypy would contribute significantly to the prediction of internet addiction and Facebook use above and beyond anxiety, depression, and demographic variables and …

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Predicting Academic Help-Seeking Intentions Using The Reasoned Action Model, Christopher Thomas, Michael J. Tagler Jun 2019

Predicting Academic Help-Seeking Intentions Using The Reasoned Action Model, Christopher Thomas, Michael J. Tagler

Education Faculty Publications and Presentations

Seeking help when confronted with academic difficulties is an adaptive self-regulated learning strategy that facilitates positive academic outcomes. However, many students are reluctant to seek help with academic difficulties. The current study used the Reasoned Action Model to investigate the determinants of students' intentions to utilize university-based sources of academic support. Participants (N = 125) in Study 1 responded to open-ended questions designed to identify salient behavioral, normative, and control beliefs contributing to the use of university-based academic support services. Participants (N = 176) in Study 2 completed measures to assess attitudes, perceived normative pressure, perceived behavioral control, …

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Risk Of Cancer Death Among White, Black, And Hispanic Populations In South Florida, Paulo S. Pinheiro, Karen E. Callahan, Tulay Koru-Sengul, Justine Ransdell, Layla Bouzoubaa, Clyde P. Brown, Erin Kobetz Jun 2019

Risk Of Cancer Death Among White, Black, And Hispanic Populations In South Florida, Paulo S. Pinheiro, Karen E. Callahan, Tulay Koru-Sengul, Justine Ransdell, Layla Bouzoubaa, Clyde P. Brown, Erin Kobetz

Environmental & Global Health Faculty Research

Background: The cancer burden in South Florida, with a population of more than 6 million with a heavily Hispanic and large Afro-Caribbean population, has not been quantified. Methods: We analyzed 2012–2016 cancer mortality data from South Florida for white, Hispanic, and black populations with disaggregation for Cuban, Puerto Rican, South American, African American, and Afro-Caribbean groups. We calculated cancer site-specific and all-sites combined age-adjusted mortality rates, and we used negative binomial regression to determine mortality rate ratios to compare South Florida’s cancer mortality rates with those of the rest of the nation. Results: We analyzed 53,837 cancer deaths. Per 100,000 …

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Microrna Regulation Of Epigenetic Modifiers In Breast Cancer, Brock Humphries, Zhishan Wang, Chengfeng Yang Jun 2019

Microrna Regulation Of Epigenetic Modifiers In Breast Cancer, Brock Humphries, Zhishan Wang, Chengfeng Yang

Toxicology and Cancer Biology Faculty Publications

Epigenetics refers to the heritable changes in gene expression without a change in the DNA sequence itself. Two of these major changes include aberrant DNA methylation as well as changes to histone modification patterns. Alterations to the epigenome can drive expression of oncogenes and suppression of tumor suppressors, resulting in tumorigenesis and cancer progression. In addition to modifications of the epigenome, microRNA (miRNA) dysregulation is also a hallmark for cancer initiation and metastasis. Advances in our understanding of cancer biology demonstrate that alterations in the epigenome are not only a major cause of miRNA dysregulation in cancer, but that miRNAs …

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An Investigation Of The Effects Of The Parasitic Nematode Aplectana Hamatospicula On The Performance And Behavior Of Cuban Treefrogs (Osteopilus Septentrionalis), Kerri Surbaugh Jun 2019

An Investigation Of The Effects Of The Parasitic Nematode Aplectana Hamatospicula On The Performance And Behavior Of Cuban Treefrogs (Osteopilus Septentrionalis), Kerri Surbaugh

USF Tampa Graduate Theses and Dissertations

Parasitic infections are ubiquitous in nature, and host-parasite dynamics can have powerful effects on wildlife populations. Many species have evolved behavioral responses to infection that can help mitigate damage from parasites. Anorexia is a common response to infection observed throughout the animal kingdom. Reducing nutrient intake can help shift host resources from digestion to immunity, as well as limit resources available to parasites. Reduced feeding can weaken the host, but in some host-parasite interactions, this cost is less than that of maintaining an infection. Here, I describe an experiment aimed to explore the effects of the parasitic nematode Aplectana hamatospicula …

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Application Of Open-Path Fourier Transform Infrared Spectroscopy (Op-Ftir) To Measure Greenhouse Gas Concentrations From Agricultural Fields, Cheng-Hsien Lin, Richard H. Grant, Albert J. Heber, Cliff T. Johnston Jun 2019

Application Of Open-Path Fourier Transform Infrared Spectroscopy (Op-Ftir) To Measure Greenhouse Gas Concentrations From Agricultural Fields, Cheng-Hsien Lin, Richard H. Grant, Albert J. Heber, Cliff T. Johnston

Purdue University Libraries Open Access Publishing Fund

Open-path Fourier transform infrared spectroscopy (OP-FTIR) has often been used to measure hazardous or trace gases from hot point sources (e.g. volcano, industrial, or agricultural facilities) but seldom used to measure greenhouse gases (GHGs) from field-scale sources (e.g. agricultural soils). Closed-path mid-IR laser-based N2O, nondispersive-IR CO2 analysers, and OP-FTIR were used to measure concentrations of N2O and CO2 at a maize cropping system during 9–19 June 2014. To measure N2O and CO2 concentrations accurately, we developed a quantitative method of N2O∕CO2 analysis that minimized interferences from diurnal changes …

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Crabs In Peril, Beth Potier Jun 2019

Crabs In Peril, Beth Potier

UNH Today Archive

No abstract provided.

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State V. Dyerson Appellant's Brief Dckt. 46072 Jun 2019

State V. Dyerson Appellant's Brief Dckt. 46072

Not Reported

No abstract provided.

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The Impact Of Waves And Tides On Residual Sand Transport On A Sediment-Poor, Energetic, And Macrotidal Continental Shelf: Dataset, Erin Victoria King, Daniel Conley, Gerd Masselink, Nicoletta Leonardi, Jak Mccarroll, Tim Scott Jun 2019

The Impact Of Waves And Tides On Residual Sand Transport On A Sediment-Poor, Energetic, And Macrotidal Continental Shelf: Dataset, Erin Victoria King, Daniel Conley, Gerd Masselink, Nicoletta Leonardi, Jak Mccarroll, Tim Scott

Faculty of Science and Engineering Datasets

This dataset is in support of the paper 'The Impact of Waves and Tides on Residual Sand Transport on a Sediment-Poor, Energetic, and Macrotidal Continental Shelf' (King et al., 2019). The dataset contains processed maps covering the South West UK continental shelf for the following variables: Mean depth-averaged velocity U and V components. Maximum bed shear stress over a tidal cycle U and V components. Cumulative total sand transport over a tidal cycle U and V components. Wave-Tide dominance classification. In addition to the above, the model input files and parameters are included. Citation KIng, E. V. et al. (2019). …

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The Religion Of Policing: Race, Riots, And The Killing Of Alton Sterling, Landon Jay Douglas Jun 2019

The Religion Of Policing: Race, Riots, And The Killing Of Alton Sterling, Landon Jay Douglas

LSU Doctoral Dissertations

Deadly force encounters with black people and law enforcement officials are far too numerous and encounters that result in the death of civilians do not always result in disciplinary actions against officers, many of whom are white. The high-profile killings of black people in America require an in-depth analysis of race, policing, and the origins of tactics used by law enforcement against black people, which is not merely data-driven, but also theory driven. In trying to understand the disparate treatment experienced by black people at the hands of law enforcement officials, and the extent to which many Americans, mostly white …

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Large-Scale Data Analysis And Deep Learning Using Distributed Cyberinfrastructures And High Performance Computing, Richard Dodge Platania Jun 2019

Large-Scale Data Analysis And Deep Learning Using Distributed Cyberinfrastructures And High Performance Computing, Richard Dodge Platania

LSU Doctoral Dissertations

Data in many research fields continues to grow in both size and complexity. For instance, recent technological advances have caused an increased throughput in data in various biological-related endeavors, such as DNA sequencing, molecular simulations, and medical imaging. In addition, the variance in the types of data (textual, signal, image, etc.) adds an additional complexity in analyzing the data. As such, there is a need for uniquely developed applications that cater towards the type of data. Several considerations must be made when attempting to create a tool for a particular dataset. First, we must consider the type of algorithm required …

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Iron-Sulfur Cluster Biosynthesis In Methanogens, Cuiping Zhao Jun 2019

Iron-Sulfur Cluster Biosynthesis In Methanogens, Cuiping Zhao

LSU Doctoral Dissertations

Methanogens live in a syntrophic consortium with bacteria, taking advantage of the metabolic abilities of their syntrophic partners to overcome energetic barriers and break down compounds that they cannot digest by themselves. Interspecies electron transfer, which is a major type of microbial communication in syntrophic processes, improves methanogenesis and anaerobic oxidization of methane (AOM) processes involved in syntrophic consortia. These processes have a significant impact on the global carbon cycle. Most of the essential enzymes involved in methanogenesis are iron-sulfur proteins. Iron-sulfur clusters are one of the oldest and most versatile cofactors present in all domains of life. To date, …

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Developmental Regression In Children With Autism Spectrum Disorder: Associated Factors And Outcomes, Jasper Abarte Estabillo Jun 2019

Developmental Regression In Children With Autism Spectrum Disorder: Associated Factors And Outcomes, Jasper Abarte Estabillo

LSU Doctoral Dissertations

Autism spectrum disorder (ASD) is an increasingly common neurodevelopmental disorder characterized by deficits in socialization skills and the presence of restricted and repetitive behaviors. In addition to a number of medical and psychological comorbidities, ASD is associated with a complex phenomenon: developmental regression (i.e., loss of skills in developmental domains). Although present in other disorders (albeit rare), developmental regression is prevalent among individuals with ASD. Thus, interest in studying the phenomenon has grown. However, research on associated risk factors and outcomes is limited and findings have been inconsistent. The current study had two aims: (1) examine potential factors associated with …

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The Distribution And Biogeochemistry Of Subtropical Intertidal Microbial Mats, Bert D. Anderson Jun 2019

The Distribution And Biogeochemistry Of Subtropical Intertidal Microbial Mats, Bert D. Anderson

USF Tampa Graduate Theses and Dissertations

Microbial mats have played an important role in the carbon (C) and nutrient cycles since the Archean Eon and modern mats are important contributors to the biogeochemistry of intertidal wetlands. Microbial mats are flat assemblages of microbes that are currently found in many unvegetated habitats globally. Intertidal salt pans are a common habitat for microbial mats, however little is known about the distribution of microbial mats within the intertidal landscape. Understanding the spatial distribution of microbial mats is critical to developing quantitative estimates of the impacts of microbial mats on their ecosystems. We photographically measured the presence and density of …

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The Impact Of Waves And Tides On Residual Sand Transport On A Sediment‐Poor, Energetic, And Macrotidal Continental Shelf, E. V. King, D. C. Conley, G. Masselink, N. Leonardi, R. J. Mccarroll, T. Scott Jun 2019

The Impact Of Waves And Tides On Residual Sand Transport On A Sediment‐Poor, Energetic, And Macrotidal Continental Shelf, E. V. King, D. C. Conley, G. Masselink, N. Leonardi, R. J. Mccarroll, T. Scott

School of Biological and Marine Sciences

No abstract provided.

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Correction To: Particle Toxicology And Health - Where Are We?, M Riediker, D Zink, W Kreyling, G Oberdörster, A Elder, U Graham, I Lynch, A Duschl, G Ichihara, S Ichihara, T Kobayashi, N Hisanaga, M Umezawa, T-J Cheng, R Handy, M Gulumian, S Tinkle, F Cassee Jun 2019

Correction To: Particle Toxicology And Health - Where Are We?, M Riediker, D Zink, W Kreyling, G Oberdörster, A Elder, U Graham, I Lynch, A Duschl, G Ichihara, S Ichihara, T Kobayashi, N Hisanaga, M Umezawa, T-J Cheng, R Handy, M Gulumian, S Tinkle, F Cassee

School of Biological and Marine Sciences

No abstract provided.

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Habitat Suitability Index Model Of The Florida Sandhill Crane (Grus Canadensis Pratensis) In West-Central Florida, Courtney E. Buck Jun 2019

Habitat Suitability Index Model Of The Florida Sandhill Crane (Grus Canadensis Pratensis) In West-Central Florida, Courtney E. Buck

USF Tampa Graduate Theses and Dissertations

The Florida Sandhill Crane (Grus canadensis pratensis) is a state threatened endemic subspecies of the Sandhill Crane (Nesbitt & Tacha, 1997). With a population that was estimated at a maximum of 5,000 individuals in 2003 (Nesbitt & Hatchitt, 2008), it is imperative to identify potentially viable habitats, as Florida is rapidly developing. This research develops a Habitat Suitability Index model to determine unsuitable to optimally suitable habitat locations throughout west-central Florida. To do so, six suitability variables based on the crane’s life history were evaluated: Potential nesting area, immediate nesting area, wetland coverage, foraging area, brooding area, and road proximity. …

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Terrestrial Mollusks Of Great Basin National Park, The Snake Range, Nevada, Usa, Mark A. Ports Jun 2019

Terrestrial Mollusks Of Great Basin National Park, The Snake Range, Nevada, Usa, Mark A. Ports

Western North American Naturalist

In this paper I report on the poorly known terrestrial mollusk fauna of Great Basin National Park (Snake Range) of the central Great Basin, USA. Mollusk species and numbers were recorded according to habitat affinities defined by a combination of rock type, geomorphology, plant communities, and water sources. A total of 6892 individuals representing 18 species of land snails and 1 species of slug were identified from 50 stations within GBNP during the period of spring 2014 through summer 2016. Mollusks were surveyed by 186 soil/litter samples and 1755 min of hand searching. Twelve habitat types included 2 xeric limestone/dolomite …

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Fibrinogen, Factor Xiii And Fibronectin: A Biophysical And Kinetic Characterization Of Their Interactions, Frank Fabian Jun 2019

Fibrinogen, Factor Xiii And Fibronectin: A Biophysical And Kinetic Characterization Of Their Interactions, Frank Fabian

Department of Chemical and Biomolecular Engineering: Dissertations, Theses, and Student Research

The development of recombinant-based liquid fibrin tissue sealants having enhanced hemostatic and wound healing properties will involve understanding as yet not well characterized interactions between fibrinogen, fibrin (Fbn) factor XIII, thrombin and fibronectin. We study these phenomena in the context of comparing plasma derived fibrinogen to recombinant fibrinogen (rFI) produced in the milk of transgenic cows. An abundance of purified γγ and γγ’ FI subspecies enables detailed study of γγ or γγ’ biomonomer and their respective Fbn biopolymer formation as having different substrate behaviors of activated plasma derived factor XIII (pFXIIIa2b2). High pressure size exclusion (HPSEC) …

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Coral Reef Change Detection In Remote Pacific Islands Using Support Vector Machine Classifiers, Justin J. Gapper, Hesham El-Askary, Erik Linstead, Thomas Piechota Jun 2019

Coral Reef Change Detection In Remote Pacific Islands Using Support Vector Machine Classifiers, Justin J. Gapper, Hesham El-Askary, Erik Linstead, Thomas Piechota

Mathematics, Physics, and Computer Science Faculty Articles and Research

Despite the abundance of research on coral reef change detection, few studies have been conducted to assess the spatial generalization principles of a live coral cover classifier trained using remote sensing data from multiple locations. The aim of this study is to develop a machine learning classifier for coral dominated benthic cover-type class (CDBCTC) based on ground truth observations and Landsat images, evaluate the performance of this classifier when tested against new data, then deploy the classifier to perform CDBCTC change analysis of multiple locations. The proposed framework includes image calibration, support vector machine (SVM) training and tuning, statistical assessment …

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Use Of Unmanned Aircraft Systems (Uas) And Multispectral Imagery For Quantifying Agricultural Areas Damaged By Wild Pigs, Justin W. Fischer, Kelsey Greiner, Mark W. Lutman, Bryson L. Webber, Kurt C. Vercauteren Jun 2019

Use Of Unmanned Aircraft Systems (Uas) And Multispectral Imagery For Quantifying Agricultural Areas Damaged By Wild Pigs, Justin W. Fischer, Kelsey Greiner, Mark W. Lutman, Bryson L. Webber, Kurt C. Vercauteren

United States Department of Agriculture Wildlife Services: Staff Publications

Wild pigs (Sus scrofa) cause extensive damage to agricultural crops, resulting in lost production and income. A major challenge associated with assessing damage to crops is locating and quantifying damaged areas within agricultural fields. We evaluated a novel method using multispectral high-resolution aerial imagery, collected from sensors mounted on unmanned aircraft systems (UAS), and feature extraction techniques to detect and map areas of corn fields damaged by wild pigs in southern Missouri, USA. Damaged areas were extracted from orthomosaics using visible and near-infrared band combinations, an object-based classification approach, and hierarchical learning cycles. To validate estimates we also collected ground …

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Ecological Researcher, Alex Demmers Jun 2019

Ecological Researcher, Alex Demmers

Celebration of Learning

This is my field research I complete during the summer of 2018.

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Lewis J. Sundquist: Augustana Alum Of 1886, Zoe L. Arvanitis, Rachel A. Bresnahan, Bryn E. Gatz Jun 2019

Lewis J. Sundquist: Augustana Alum Of 1886, Zoe L. Arvanitis, Rachel A. Bresnahan, Bryn E. Gatz

Celebration of Learning

Lewis J. Sundquist graduated from Augustana in 1886. We will discuss his career as a pastor, his family history, and his genealogy.

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Peter Olof Hansen; Augustana Alum Of 1886, Elizabeth J. Merrill, Abby R. Redlinger, Joshua R. Anderson Jun 2019

Peter Olof Hansen; Augustana Alum Of 1886, Elizabeth J. Merrill, Abby R. Redlinger, Joshua R. Anderson

Celebration of Learning

Peter Olof Hansen graduated from Augustana in June of 1886. We have researched his immigration to the United States, his family history and genealogy, and his career as a pastor after Augustana.

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Feminisms, The Environment And Capitalism: On The Necessary Ecological Dimension Of A Critical Latin American Feminism, Verónica Schild Jun 2019

Feminisms, The Environment And Capitalism: On The Necessary Ecological Dimension Of A Critical Latin American Feminism, Verónica Schild

Journal of International Women's Studies

Latin American women are on the move today, taking their demands to the streets throughout the region in unprecedented numbers. What these demands reveal is a growing frustration and anger among women with the distance between official democratic promises and protections and the limited gains in basic rights, even the reversal of minimal achievements in places like Central America and Brazil. Feminists are weaving together different struggles into an intersectional movement explicitly linking gender demands to the end of a neoliberal capitalist model of development and its devastating social, economic and ecological effects on Latin America’s overwhelming majority. A critical …

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More Than Man's Best Friend, Sarah Rushing Jun 2019

More Than Man's Best Friend, Sarah Rushing

Celebration of Learning

With Viking Pups starting to be more active again, we wanted to do a presentation to remind people of different laws that protect service dogs and service dogs in training. We also would like to cover the differences between service dogs and other working dogs. And if it would be allowed, we would like to share some of our clients testimonies, in order to give individuals a better glance at how much of a difference a service dog can make. We originally decided to propose a symposium day presentation because one of the main goals of the club is to …

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The Effect Of Democracy, Development, Religion And Science On Animal Welfare, Sydney Richardson Jun 2019

The Effect Of Democracy, Development, Religion And Science On Animal Welfare, Sydney Richardson

Celebration of Learning

This project examined the determinants of animal welfare across five countries: India, New Zealand, Spain, Sweden and the United Stated. The dependent variable of animal welfare was measured based on the Animal Protection Index (API) developed by the World Protection, a global non-profit organization. Democracy, development, religion and science were major areas that were evaluated to determine if there were correlations with the API. Correlation with the API was tested by using the Pearson Correlation Coefficient. A Country’s Freedom House scores were used to evaluate Democracy. Development examined each country’s Human Development Index from the UN’s Human Development Reports and …

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