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The Rider (2019-11-04), Victor G. Ramirez

The Rider Archives

Vol.5 No.11

Recent Precipitation Decrease Across The Western Greenland Ice Sheet Percolation Zone, Hans-Peter Marshall, Tate Meehan

Geosciences Faculty Publications and Presentations

The mass balance of the Greenland Ice Sheet (GrIS) in a warming climate is of critical interest in the context of future sea level rise. Increased melting in the GrIS percolation zone due to atmospheric warming over the past several decades has led to increased mass loss at lower elevations. Previous studies have hypothesized that this warming is accompanied by a precipitation increase, as would be expected from the Clausius–Clapeyron relationship, compensating for some of the melt-induced mass loss throughout the western GrIS. This study tests that hypothesis by calculating snow accumulation rates and trends across the western GrIS percolation …

Differences In Creativity Across Domains Between Students With Dyslexia And Those Without, Maria Avitia

Doctoral Dissertations

When a student has a learning disability in reading and or dyslexia, interventions focus on remediating the weakness. Positive psychology is a field of psychology that looks to help people, based on harnessing a person's strengths, to create better outcomes. Strengths-based or asset-based interventions have been used with people with developmental disabilities to learn new skills. This study hoped to help identify strengths for people with dyslexia in two areas that have been hypothesized to be strengths for them: creativity and visual-spatial ability. Creativity has typically been assessed with domain-general measures rather than actual measures of creativity. Similarly, visual-spatial ability …

Morphology, Molecular Characterization And Habitat Preference Of Harmful Benthic Dinoflagellate Gambierdiscus (Dinophyceae) In Malaysia, Nurin Izzati Mustapa

Student Works (2020-2029)

Ciguatera fish poisoning (CFP) is a type of illness that causes human intoxication after consuming contaminated coral fishes. The neurotoxins, ciguatoxins, are produced by species of Gambierdiscus, one of the harmful benthic dinoflagellates. Identification of harmful dinoflagellate species is important to gain further insights into the global dispersion. In this study, morphological characteristics of species in the genus Gambierdiscus and their habitat preferences were investigated. Field sampling was undertaken at Pulau Rawa, Terengganu and Pulau Sibu, Johor. Single cells of Gambierdiscus were isolated and clonal cultures were established. Morphology of Gambierdiscus was examined by using light and scanning electron microscopes. …

Crow's Nest, November 4, 2019, Crow's Nest Staff

Crow's Nest

The November 4, 2019, issue of the Crow's Nest.

Evaluating Conversation Agent Impact On Student Experience In A Distance Education Course, Grover Walters

USF Tampa Graduate Theses and Dissertations

We explore the efficacy of conversation agents operating as an instructional aid in a distance education course. Two aspects of efficacy are considered—conversation agent impact on student perceptions of the experience, and how different design features of the agent affect student perceptions of engagement. Evaluation of the agent is accomplished by collecting data from 24 undergraduate participants separated into random groups. We conduct two rounds of mixedmethod evaluation. Between the two rounds, a modification to the agent occurs based on the outcome of the first evaluation. Findings include limitations related to phrasing and data persistence features of the design that …

The Total Syntheses Of Jbir-94 And Two Synthetic Analogs And Their Cytotoxicities Against A549 (Ccl-185) Human Small Lung Cancer Cells, Cathy L. Mangum, Mica B. Munford, Alyssa Sam, Sandra K. Young, Jeremy T. Beales, Yagya Prasad Subedi, Chad D. Mangum, Tanner J. Allen, Miranda S. Liddell, Andrew I. Merrell, Diana I. Saavedra, Becky L. Williams, Nicole Evans, Joseph L. Beales, Mike A. Christiansen

Chemistry and Biochemistry Faculty Publications

We here disclose the total syntheses of the natural polyphenol JBIR-94 and two nonnatural analogs, whose structures are of interest for their bioactivity potential as radical scavengers. Although we initially attempted this by dually acylating both of putrecine’s amine nitrogens in a single pot, our endeavors with this method (which has been successfully reported by other groups) proved ineffectual. We accordingly opted for the lengthier approach of acylating each amine individually, which gratuitously prevailed and also aligns with separate literature precedent. Moreover, we here share our analysis of these target compounds’ cytotoxicities and IC₅₀ values against A549 (CCL-185) human …

An Efficient Viologen-Based Electron Donor To Nitrogenase, Artavazd Badalyan, Zhi-Yong Yang, Bo Hu, Jian Luo, Maowei Hu, T. Leo Liu, Lance C. Seefeldt

Chemistry and Biochemistry Faculty Publications

Nitrogenase catalyzes the reduction of N₂ to NH₃, supporting all biological nitrogen fixation. Electron donors to this enzyme are ferredoxin or flavodoxin (in vivo) and sodium dithionite (in vitro). Features of these electron donors put a limit on spectrophotometric studies and electrocatalytic applications of nitrogenase. Although it is common to use methyl viologen as an electron donor for many low-potential oxidoreductases, decreased nitrogenase activity is observed with an increasing concentration of methyl viologen, limiting its utility under many circumstances. In this work, we suggest that this concentration-dependent decrease in activity can be explained …

Effects Of Reservoir Conditions And Trace Co-Contaminant Gases On Geological Carbon Sequestration, Ram Kumar

USF Tampa Graduate Theses and Dissertations

Geological carbon sequestration in a saline formation is a promising technology for large-scale carbon dioxide (CO2) mitigation. Several factors such as temperature, pressure, salinity, hydraulic conductivity, and mineralogy of a formation affect the CO2 sequestration in saline formations. These factors can vary widely depending upon the type of formation or the degree of heterogeneity within a formation. In addition to these properties of the repositories, the CO2-rich flue gas streams captured from point sources often contains small amounts of impurities such as sulfur oxides (SOx) and nitrogen oxides (NOx), which may have serious implications on the chemistry of the repositories …

Teaching At Southern, Georgia Southern University

Faculty Center: News & Publications

• Mindset in the Classroom Workshop
• Critical Race Theory-Interrupting Racism Workshop
• SoTL Award Winner Presentation - Make Things Count Twice
• Registration Open: Spring Teaching Online Courses (TOC) Program
• Registration Open: Improving Your Online Course
• SoTL FLC
• Badge Workshops
• Evidence-Based Teaching
• Teaching with Technology
• Folio Foundations and Integrations

Analytical Treatment Of The Interaction Quench Dynamics Of Two Bosons In A Two-Dimensional Harmonic Trap, G. Bougas, Simeon I. Mistakidis, P. Schmelcher

Physics Faculty Research & Creative Works

We Investigate The Quantum Dynamics Of Two Bosons, Trapped In A Two-Dimensional Harmonic Trap, Upon Quenching Arbitrarily Their Interaction Strength And Thereby Covering The Entire Energy Spectrum. Utilizing The Exact Analytical Solution Of The Stationary System, We Derive A Closed Analytical Form Of The Expansion Coefficients Of The Time-Evolved Two-Body Wave Function, Whose Dynamics Is Determined By An Expansion Over The Postquench Eigenstates. The Emergent Dynamical Response Of The System Is Analyzed In Detail By Inspecting Several Observables Such As The Fidelity, The Reduced One-Body Densities, The Radial Probability Density Of The Relative Wave Function In Both Real And Momentum …

Spatiotemporal Analysis Of Lake Water Quality Indicators On Small Lakes, Lake Bloomington And Evergreen Lake In Central Illinois, Using Satellite Remote Sensing, Gare Ambrose-Igho

Theses and Dissertations

This research explores the use of Sentinel-2 satellite to determine the spatiotemporal patterns of lake water quality indicators (e.g. chlorophyll a) in Lake Bloomington and Evergreen Lake. Lake water quality issues related to algal blooms is a serious problem in basins with abundant agricultural lands causing harmful effects to freshwater ecosystems such as pollution of beaches, taste and odor problems in drinking water, depletion of oxygen levels causing fish kills and the issue of water exceeding safe drinking water standards. Developing monitoring techniques using various water quality indicators of algal blooms is crucial. In this project, remote sensing and field …

Progression-Free But No Overall Survival Benefit For Adult Patients With Bevacizumab Therapy For The Treatment Of Newly Diagnosed Glioblastoma: A Systematic Review And Meta-Analysis., Nagham Kaka, Karim Hafazalla, Haider Samawi, Andrew Simpkin, James Perry, Arjun Sahgal, Sunit Das

Department of Neurosurgery Faculty Papers

Glioblastoma (GBM) is the most common high-grade primary brain tumor in adults. Standard multi-modality treatment of glioblastoma with surgery, temozolomide chemotherapy, and radiation results in transient tumor control but inevitably gives way to disease progression. The need for additional therapeutic avenues for patients with GBM led to interest in anti-angiogenic therapies, and in particular, bevacizumab. We sought to determine the efficacy of bevacizumab as a treatment for newly diagnosed GBM. We conducted a literature search using the PubMed database and Google Scholar to identify randomized controlled trials (RCTs) since 2014 investigating the safety and efficacy of bevacizumab in the treatment …

Changes In The Cognitive Dynamics Of Problem-Solving, Shireena Mcgee

Master's Theses

How do humans develop the ability to approach and solve diverse, attentionally-demanding problems? Current work on problem-solving focuses on well-defined problems in which explicit task constraints directly inform the planning and execution of behaviors. However, in situations that might be more informative for naturalistic learning and problem-solving, what is necessary to solve problems when task constraints, and thus planning abilities, are not as easily accessible? Executive functions such as selective attention and working memory seem fundamental to these types of activities, yet there is not a clear account of how exactly the coordination of these cognitive processes contribute dynamically to …

Repeat Length Of Patterns On Weaving Products, Zhuochen Liu

Mathematical Sciences Technical Reports (MSTR)

Interlacing strands have been used to create artistic weaving patterns. Repeated patterns form aesthetically pleasing products. This research is a mathematical modeling of weaving products in the real world by using Cellular Automata. The research is conducted by observing the evolution of the model to better understand products in the real world. Specifically, this research focuses on the repeat length of a weaving pattern given the rule of generating it and the configuration of the starting row. Previous studies have shown the range of the repeat length in specific situations. This paper will generalize the precise repeat length in one …

Rating Mechanisms For Sustainability Of Crowdsourcing Platforms, Chenxi Qiu, Anna Squicciarini, Sarah Rajtmajer

College of Science & Mathematics Departmental Research

Crowdsourcing leverages the diverse skill sets of large collections of individual contributors to solve problems and execute projects, where contributors may vary significantly in experience, expertise, and interest in completing tasks. Hence, to ensure the satisfaction of its task requesters, most existing crowdsourcing platforms focus primarily on supervising contributors' behavior. This lopsided approach to supervision negatively impacts contributor engagement and platform sustainability.

Effect Of Foliar Spray Application Of Zinc Oxide Nanoparticles On Quantitative, Nutritional, And Physiological Parameters Of Foxtail Millet (Setaria Italica L.) Under Field Conditions, Marek Kolenčík, Dávid Ernst, Matej Komár, Martin Šebesta, Martin Urík, Edmund Dobročka, Ivan Černý, Ramakanth Illa, Raghavendra Kanike, Qian Yu, Huan Feng, Denisa Orlová, Gabriela Kratošová

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

It has been shown that the foliar application of inorganic nano-materials on cereal plants during their growth cycle enhances the rate of plant productivity by providing a micro-nutrient source. We therefore studied the effects of foliarly applied ZnO nanoparticles (ZnO NPs) on Setaria italica L. foxtail millet’s quantitative, nutritional, and physiological parameters. Scanning electron microscopy showed that the ZnO NPs have an average particle size under 20 nm and dominant spherically shaped morphology. Energy dispersive X-ray spectrometry then confirmed ZnO NP homogeneity, and X-ray diffraction verified their high crystalline and wurtzite-structure symmetry. Although plant height, thousand grain weight, and grain …

Nonlinear Reaction–Diffusion Process Models Improve Inference For Population Dynamics, Xinyi Lu, Perry J. Williams, Mevin B. Hooten, James A. Powell, Jamie N. Womble, Michael R. Bower

Mathematics and Statistics Faculty Publications

Partial differential equations (PDEs) are a useful tool for modeling spatiotemporal dynamics of ecological processes. However, as an ecological process evolves, we need statistical models that can adapt to changing dynamics as new data are collected. We developed a model that combines an ecological diffusion equation and logistic growth to characterize colonization processes of a population that establishes long‐term equilibrium over a heterogeneous environment. We also developed a homogenization strategy to statistically upscale the PDE for faster computation and adopted a hierarchical framework to accommodate multiple data sources collected at different spatial scales. We highlighted the advantages of using a …

“Miss, This Is A Lot Of Work”: Exploring Part-Time Students Experiences Of Qualitative Research, Therese Ferguson, Tenesha Gordon

The Qualitative Report

Qualitative research can be time consuming and intensive as researchers engage in data collection, analysis, and interpretation of rich, detailed, multi-layered, and voluminous data. For Master’s level students struggling to balance full-time work, family, part-time studies, and other obligations, the nature of qualitative research can be overwhelming and discouraging as they learn about and engage in the research process. However, if students’ experiences are rich and meaningful, the time investment can be worthwhile. In this generic qualitative study, Master’s Level Education students’ experiences in an Introduction to Qualitative Research in Education course are explored. Drawing on data from semi-structured one-to-one …

Structure Design And Assessment Of A Floating Foundation For Offshore Wind Turbines, Qi Ye, Shanshan Cheng, Boksun Kim, Keri Collins, Gregorio Iglesias

School of Engineering, Computing and Mathematics

No abstract provided.

How Schools Create Healthy Testing Cultures And How Principals Use Standardized Test Data To Become Leaders Of Learning, Holly A. Gurule

Teacher Education, Educational Leadership & Policy ETDs

Standardized tests are not new to the field of education. The problem with them seems to lie in the ways these tests are now being used as criteria for various high-stakes decisions such as teachers’ evaluations, school grades, school sanctions, and even graduation from high school with a diploma. With so many different uses for standardized tests, it is easy to see how our perception of them has become skewed.

This bounded case study of a small elementary school in a large urban district centered on shifting the focus away from looking at standardized tests as a negative, as mere …

Indigenous Arts And Tribal Colleges And Universities: Expressions Of Collective Native Identity, Cheryl Crazy Bull, Colleen Co Carew, Bridget Skenadore

International Journal of Human Rights Education

This commentary discusses the American Indian College Fund and Tribal College and Universities’ support of Indigenous arts as critical to cultural identity and place-based experiences for Native people. Indigenous arts are deeply rooted in connections to shared Indigenous values of kinship, relationship to all living and non-living things, language, and the land. In the United States, hundreds of Tribes have art forms that emerge from place, from interpretation of Tribal knowledge, and which meet the everyday, human needs of beauty, usefulness, and connectedness. Our right as humans to preserve and revitalize traditional and contemporary Native arts supporting our cultural identities …

Naturally-Scientific And Philosophical Views Abu Ali Ibn Sino, Gularam Masharipova

The Light of Islam

The article analyzes the natural-science and philosophical views of Abu Ali Ibn Sino, and also studies the social relations of that period. The scientific heritage of Ibn Sina, representing a rich philosophical system (Kitab ash-shifa, Kitab an-najot, Donishnom) was investigated from the point of view of philosophical knowledge: physics, mathematics, logic and metaphysics. The scientific heritage of Abu Ali Ibn Sina is conventionally divided into 4 groups, that is, natural, philosophical views, literature and medicine. Much attention is paid to philosophy and medicine. In the West, the medical heritage of Avicenna is known from the work of the Canon of …

Harnessing The Potentials Of The Blue Economy For Kenya’S Sustainable Development, Enock Mong'are Okemwa

World Maritime University Dissertations

No abstract provided.

Identify Monitoring Needs And Emerging Technology To Support Ecosystem Based Management (Ebm) And Sustainable Blue Growth In Nigerian Ports : Case Study : Lagos Ports (Lagos Pport Complex And Tin Can Island Port Complex), Roland Oladipo Ijabiyi

World Maritime University Dissertations

No abstract provided.

Emissions Control Investment Policy For The 2020 Sulphur Cap Implemented By Port Of Gothenburg As A Model For The Port Of Mombasa, Luis M. Colmenares, Wachira W. Margaret

World Maritime University Dissertations

No abstract provided.

Unctad Liner Shipping Connectivity Index And The Development Strategy Of Port Of Colombo, Prasad Dumidu Subhawickrama

World Maritime University Dissertations

No abstract provided.

Wind Propulsion Optimisation And Its Integration With Solar Power, Mphatso Nsanjama Nyanya, Huy Ba Vu

World Maritime University Dissertations

No abstract provided.

Towards Implementing Integrated Coastal Zone Management In The Gambia : Coastal Adaptation To Climate Change And Human Impacts In The High Risk Zone (Cell 6), Lamin Komma

World Maritime University Dissertations

No abstract provided.

Giving Students A Place To Thrive, Bill Dabney

University of Mississippi News

No abstract provided.