Digital Commons Network^™

The Interaction Between A Zinc(Ii) Phthalocyanine Compound Bearing Octakis Phenoxyacetamide Substituents And Calf Thymus Dna, Ali̇ Arslantaş, Mehmet Sali̇h Ağirtaş

Turkish Journal of Chemistry

In this study, a zinc(II) phthalocyanine compound (PcZn) substituted with octakis phenoxyacetamide was synthesized and characterized. Calf thymus DNA (CT-DNA) was used to determine the DNA binding properties of the zinc(II) phthalocyanine compound. This interaction of CT-DNA with PcZn was investigated using electronic absorption spectra, emission spectroscopy, a thermal melting temperature study, cyclic voltammetry, and viscosity measurements in a Tris-HCl buffer solution at a pH of 7.2. The findings showed that zinc(II) phthalocyanine interacts with calf thymus DNA via partial intercalative binding mechanisms. In addition to the techniques above, a gel electrophoresis study was also carried out to verify the …

Synthesis Of Acetamide Derivatives Of 1,2,4-Triazole Bearing Azinane And Their Binding Interactions With Bovine Serum Albumin Using Spectroscopic Techniques, Javed Iqbal, Aziz Ur Rehman, Muhammad Athar Abbasi, Sabahat Zahra Siddiqui, Hira Khalid, Sabina Jhaumeer Laulloo, Nausheen Joondan, Aniisah Banu Taupass, Shahid Rasool, Syed Adnan Ali Shah

Turkish Journal of Chemistry

A new series of acetamide derivatives containing 1,2,4-triazole and azinane moieties has been synthesized and characterized using $^{1}$H NMR, $^{13}$C NMR, IR, and EI-MS spectroscopic analysis. The intermediate triazole was synthesized through a sequential synthesis of carboxylate and carbohydrazide. The bovine serum albumin (BSA) binding of the newly synthesized 1,2,4-triazole derivatives was evaluated along with thermodynamics, site-selective binding, and synchronous study. The results obtained by BSA binding as well as thermodynamic studies justify that all the compounds show spontaneous interaction with BSA and could be effectively distributed and eliminated from the body. Therefore, the triazole-based analogs might be a useful …

Quantitative Forecasting Of Risk For Ptsd Using Ecological Factors: A Deep Learning Application, Nuriel S. Mor, Kathryn L. Dardeck

Journal of Social, Behavioral, and Health Sciences

Forecasting the risk for mental disorders from early ecological information holds benefits for the individual and society. Computational models used in psychological research, however, are barriers to making such predictions at the individual level. Preexposure identification of future soldiers at risk for posttraumatic stress disorder (PTSD) and other individuals, such as humanitarian aid workers and journalists intending to be potentially exposed to traumatic events, is important for guiding decisions about exposure. The purpose of the present study was to evaluate a machine learning approach to identify individuals at risk for PTSD using readily collected ecological risk factors, which makes scanning …

Supporting Transgender Students In Higher Education: Opportunities For Mental Health Professionals, Tracy G. Marsh

Journal of Social, Behavioral, and Health Sciences

During the last decade, there has been a significant increase in visibility of transgender and gender-nonconforming (TGNC) individuals, particularly in Western cultures. However, this increase in visibility has also prompted a concomitant surge in hate crimes and violence against TGNC persons and anti-TGNC legislation throughout the United States. Extant research, framed largely by Meyer’s minority stress model, has shown that TGNC persons experience greater rates of psychological distress, including depression, anxiety, substance abuse, and suicidal ideation and intent when compared to cisgender and lesbian, gay, and bisexual peers. Furthermore, TGNC students in higher education face specific challenges with regard to …

Driving Factors On Runoff Change In The North Semiarid Rapidly Urbanization Watershed, Yong Bai, Rui-Zhong Gao, Xi-Xi Wang, Wei-Na Wang

Civil & Environmental Engineering Faculty Publications

The hydrological process of a watershed influences a lot on the local socioeconomic development. The analysis of runoff change caused by the rapid urbanization on the watershed is of important significance in the management and protection of the local water resource. In this study, based on the land use information from remotely sensed images, the hydrometeorological observation data and the social economy data from 1997 to 2015, the relationship between the influencing factors and the runoff trend in Wulanmulun River watershed was analyzed at different time scale using the improved Mann-Kendall Test and PCA (principal component analysis) method. The results …

Interpreting Mosaics Of Ocean Biogeochemistry, Andrea Fassbender, A. Bourbonnais, Sophie Clayton, P. Gaube, M. Ormand, P.J.S. Franks, M. A. Altabet, D.J. Mcgillicuddy Jr.

OES Faculty Publications

Advances in technology and modeling capabilities are driving a surge in progress in our understanding of how ocean ecosystems mix and mingle on medium to small scales.

Blooms Of Dinoflagellate Mixotrophs In A Lower Chesapeake Bay Tributary: Carbon And Nitrogen Uptake Over Diurnal, Seasonal, And Interannual Timescales, Margaret R. Mulholland, Ryan Morse, Todd Egerton, Peter W. Bernhardt, K. C. Filippino

OES Faculty Publications

A multi-year study was conducted in the eutrophic Lafayette River, a sub-tributary of the lower Chesapeake Bay during which uptake of inorganic and organic nitrogen (N) and C compounds was measured during multiple seasons and years when different dinoflagellate species were dominant. Seasonal dinoflagellate blooms included a variety of mixotrophic dinoflagellates including Heterocapsa triquetra in the late winter, Prorocentrum minimum in the spring, Akashiwo sanguinea in the early summer, and Scrippsiella trochoidea and Cochlodinium polykrikoides in late summer and fall. Results showed that no single N source fueled algal growth, rather rates of N and C uptake varied on seasonal …

Composition Of Dissolved Organic Matter In Pore Waters Of Anoxic Marine Sediments Analyzed By 1h Nuclear Magnetic Resonance Spectroscopy, Christina A. Fox, Hussain A. Abdulla, David J. Burdige, James P. Lewicki, Tomoko Komada

OES Faculty Publications

Marine sediments are globally significant sources of dissolved organic matter (DOM) to the oceans, but the biogeochemical role of pore-water DOM in the benthic and marine carbon cycles remains unclear due to a lack of understanding about the molecular composition of DOM. To help fill this knowledge gap, we used 1H nuclear magnetic resonance (NMR) spectroscopy to examine depth variability in the composition of pore-water DOM in anoxic sediments of Santa Barbara Basin, California Borderland. Proton detected spectra were acquired on whole samples without pre-concentration to avoid preclusion of any DOM components from the analytical window. Broad unresolved resonance (operationally …

Expected Limits On The Ocean Acidification Buffering Potential Of A Temperate Seagrass Meadow, David A. Koweek, R. C. Zimmerman, Kathryn M. Hewett, Brian Gaylord, Sarah N. Giddings, Kerry J. Nickols, Jennifer L. Ruesink, John J. Stachowicz, Yuichiro Takeshita, Ken Caldeira

OES Faculty Publications

Ocean acidification threatens many marine organisms, especially marine calcifiers. The only global‐scale solution to ocean acidification remains rapid reduction in CO₂ emissions. Nevertheless, interest in localized mitigation strategies has grown rapidly because of the recognized threat ocean acidification imposes on natural communities, including ones important to humans. Protection of seagrass meadows has been considered as a possible approach for localized mitigation of ocean acidification due to their large standing stocks of organic carbon and high productivity. Yet much work remains to constrain the magnitudes and timescales of potential buffering effects from seagrasses. We developed a biogeochemical box model to …

Perspectives On Chemical Oceanography In The 21st Century: Participants Of The Come Aboard Meeting Examine Aspects Of The Field In The Context Of 40 Years Of Disco, Andrea J. Fassbender, Hilary I. Palevsky, Todd R. Martz, Anitra E. Ingalls, Martha Gledhill, Sarah E. Fawcett, Jay A. Brandes, Lihini I. Aluwihare, The Participants Of Come Aboard, Disco Xxv

OES Faculty Publications

The questions that chemical oceanographers prioritize over the coming decades, and the methods we use to address these questions, will define our field's contribution to 21st century science. In recognition of this, the U.S. National Science Foundation and National Oceanic and Atmospheric Administration galvanized a community effort (the Chemical Oceanography MEeting: A BOttom-up Approach to Research Directions, or COME ABOARD) to synthesize bottom-up perspectives on selected areas of research in Chemical Oceanography. Representing only a small subset of the community, COME ABOARD participants did not attempt to identify targeted research directions for the field. Instead, we focused on how best …

Corrigendum: Composition Of Dissolved Organic Matter In Pore Waters Of Anoxic Marine Sediments Analyzed By 1h Nuclear Magnetic Resonance Spectroscopy, Christina A. Fox, Hussain A. Abdulla, David J. Burdige, James P. Lewicki, Tomoko Komada

OES Faculty Publications

No abstract provided.

A Comparison Of Information Technology Mediated Customer Services Between The U.S. And China, Suhong Li, Hal Records, Robert Behling

Information Systems and Analytics Department Faculty Journal Articles

Information technology mediated customer service is a reality of the 21st century. More and more companies have moved their customer services from in store and in person to online through computer or mobile devices. Using 442 responses collected from one USA university (234 responses) and two Chinese universities (208 responses), the study investigates customer preferences over two service delivery models (either in store or online) on five types of purchasing (retail, eating-out, banking, travel and entertainment) and their perception difference in customer service quality between those two delivery models in the U.S. and China. The results show that the majority …

Evidence For Ephemeral Middle Eocene To Early Oligocene Greenland Glacial Ice And Pan-Arctic Sea Ice, Aradhna Tripati, Dennis Darby

OES Faculty Publications

Earth's modern climate is defined by the presence of ice at both poles, but that ice is now disappearing. Therefore understanding the origin and causes of polar ice stability is more critical than ever. Here we provide novel geochemical data that constrain past dynamics of glacial ice on Greenland and Arctic sea ice. Based on accurate source determinations of individual ice-rafted Fe-oxide grains, we find evidence for episodic glaciation of distinct source regions on Greenland as far-ranging as ~68°N and ~80°N synchronous with ice-rafting from circum-Arctic sources, beginning in the middle Eocene. Glacial intervals broadly coincide with reduced CO_{2 …}

Volcanogenic Pseudo-Fossils From The ~3.48 Ga Dresser Formation, Pilbara, Western Australia, David Wacey, Nora Noffke, Martin Saunders, Paul Guagliardo, David M. Pyle

OES Faculty Publications

The ~ 3.48 billion-year-old Dresser Formation, Pilbara Craton, Western Australia, is a key geological unit for the study of Earth's earliest life and the habitats it occupied. Here, we describe a new suite of spheroidal to lenticular microstructures that morphologically resemble some previously reported Archean microfossils. Correlative microscopy shows that these objects have a size distribution, wall ultrastructure, and chemistry that are incompatible with a microfossil origin and instead are interpreted as pyritized and silicified fragments of vesicular volcanic glass. Organic kerogenous material is associated with much of the altered volcanic glass; variable quantities of organic carbon line or fill …

The Biogeochemical Cycling Of Iron, Copper, Nickel, Cadmium, Manganese, Cobalt, Lead, And Scandium In A California Current Experimental Study, Travis Mellett, Matthew T. Brown, P. Dreux Chappell, Carolyn Duckham, Jessica N. Fitzsimmons, Claire P. Till, Robert M. Sherrell, Maria T. Maldonado, Kristen N. Buck

OES Faculty Publications

A 3-day shipboard incubation experiment was conducted in the California Current System in July 2014 to investigate the cycling of iron (Fe), copper (Cu), nickel (Ni), cadmium (Cd), manganese (Mn), cobalt (Co), lead (Pb), and scandium (Sc) under a range of light and particle conditions. Filtered (< 0.2 μm) and unfiltered treatments were incubated under the following light conditions: Dark, light (“UV”), and light without the ultraviolet (UV) wavelengths (“noUV”). The experiment was sampled for carbon and Fe uptake rates, dissolved trace metal concentrations (Fe, Cu, Ni, Cd, Mn, Co, Pb, Sc), Fe and Cu speciation, size-fractionated concentrations of Cd and Fe, and diatom community composition from DNA sequencing. Exposure to UV light increased phytoplankton Fe uptake in the first 24 h of the incubation relative to the noUV treatment, suggesting that a fraction of the ambient ligand-bound Fe was photoreactive. Fe-binding organic ligand production was observed in the unfiltered light treatments in association with increasing chlorophyll a, and evidence for Cu-binding ligand production in these treatments was also observed. Biological uptake of Cd and Co was observed along with scavenging of dissolved Pb. Manganese appeared to be rapidly oxidized by Mn-oxidizing bacteria with concomitant drawdown of dissolved Ni. Scandium displayed similar trends to Fe, reinforcing the limited observations …

Contextualized Queries Over Heterogeneous Data With A Property-Graph-Based Knowledge Space, Michael P. Grenon

Theses

Data integration is a problem often solved by imposing a standardized context with which all data sources in the system are mapped. If subgroups in an organization have a different point of view than the standardized context, then they may find usage of this integrated system difficult. Knowledge Spaces (KS) are a recently proposed architecture that allows for multiple, even contradictory, contexts to be built with conceptual graphs (CG). Little guidance exists in regard to constructing a KS that is capable of utilizing the graph operations CGs are able to support. This work introduces an approach to KS construction that …

Method And Results From Characterization Of Atmospheric Properties With Differential Temperature Methods, Alex Clark

Theses

As engineers and scientists work to refine free-space optical systems that operate over long terrestrial ranges, there is a need to better understand, characterize, and quantify the atmospheric properties of the environment. One such atmospheric property of interest is the refractive-index structure coefficient, or 〖Cn〗^2, which describes small changes in the base atmospheric refractive index. Over very short distances, small index of refraction changes usually cause negligible problems to all but the most demanding optical systems, such as interferometric systems, but can have a large effect on Optical Path Length (OPL) as short as 1 km. This thesis presents a …

The Motivation To Learn : Engaging Students In Pre-Modern Western Education, James Putman

Theses

Apathy among learners in secondary education classrooms is a modern problem but it has an interesting past. This paper assumes that unmotivated learners have always been a difficulty and uses a historical analysis to investigate how educators in the pre-modern world effectively motivated and engaged students. Using primary sources from scholars and educators of the pre-modern era a comparison is made to what modern pedagogical experts consider to be effective engagement strategies. Historical context for this comparison is provided within a chronological education narrative of Western civilization beginning with Ancient Greece and concluding with the Early Modern Period. The evidence …

Storytelling Elements In Nasa Case Studies, Giulia E. Palma

Theses

The goal of this thesis is to improve communication in engineering by understanding how storytelling elements are being used in engineering and how they could be used. Storytelling is an effective communication mean since it is a natural way in which humans think and verbalize their thoughts. For this reason, the author explores the possibility of introducing storytelling elements to engineering communication. Storytelling elements are identified to be used as metrics in the analysis of a case studies collection. The case studies collection was studied for patterns in the content. A human experiment was conducted using the backstory structure element …

Is Deliberate Knowledge Sharing Useful? Impacts Of Reflexivity, Diversity, And Motivation On Team Decision Making, Jeffrey Edmund Dyas

Theses

Knowledge sharing has been shown in studies to positively impact team performance. Understanding methods that could lead to deliberate knowledge-sharing could be beneficial for teams. Reflexivity is the degree to which team members communicate the team’s objectives, strategies, and limitations in order to mitigate unexpected situations. Reflexivity was examined with a motivational theory of goal orientation to test how team motivation influenced reflexivity’s impact on knowledge sharing and team performance. Furthermore, diversity in goal orientation was studied to gauge how diverse motives of team members influenced team performance. Results indicated no support for reflexivity improving knowledge sharing; however, the experiment …

A Georgia's School Districts Grades 3-5 Teachers' And Principals' Perceptions Regarding On-Line Georgia Milestones Testing, Doriastino Cheely Brown

College of Graduate Studies: Theses & Dissertations

Georgia Milestones, High stakes testing, On-line testing grades 3 – 5 teachers’ and administrators’ perceptions of online Georgia Milestones testing on (a) curriculum, (b) teaching, (c) accountability, and (d) stress. Data were collected via survey. Sixty teachers and eight administrators completed the survey. Surveys were analyzed by school, administrator, and domain. Open-ended questions at the end of the survey were analyzed individually by question for teacher and administrator themes. Survey analyses found that teachers and administrators, in the curriculum domain, believed that on-line high-stakes testing led teachers to reassess beliefs about subject matter that is important to teach. The survey …

A Study On Science Achievement And Motivation Using Computer-Based Simulations Compared To Traditional Hands-On Manipulation, Stacey L. Hannel, Joshua Cuevas

Georgia Educational Researcher

This study was conducted to investigate whether or not computer-based simulations had a greater impact on science achievement compared to traditional hands-on methods for middle school students in an on-level science course. The study also sought to determine if either method had an impact on retention as well as motivation. The participants in the study were 6^th grade students attending a public middle school in suburban metro-Atlanta. A variety of statistical analyses were utilized to measure science achievement, retention, and motivation. Results indicated that there was no significant difference on science achievement between the traditional hands-on method and the …

Principles Of Wind Energy Production, Willie Haynes, Dianne Lhotte, Johnetta Moore

ENgaging Educators in Renewable enerGY (ENERGY): Lesson Plans & Slideshows (2017-2019)

Three public school teachers designed basic wind turbine energy production tests to help them teach wind energy principles to middle and high school students. Variables affecting wind turbine energy production were identified (distance from wind tunnel, blade design, angle of attack, and wind speed), and experiments were conducted to test each variable. This research aligns with Georgia DOE curriculum standard STEM-FET-3.7: Apply STEM knowledge and skills through hands-on research and lab experiments that are focused upon recreating the inventions and social solutions that were realized in the past, present, and possible future. These experiments will be a part of an …

Self-Rated Health Trajectories Among Married Americans: Do Disparities Persist Over 20 Years?, Terceira A. Berdahl, Julia Mcquillan

Department of Sociology: Faculty Publications

The purpose of this study is to understand self-rated health (SRH) trajectories by social location (race/ethnicity by gender by social class) among married individuals in the United States. We estimate multilevel models of SRH using six observations from 1980 to 2000 from a nationally representative panel of married individuals initially aged 25–55 (Marital Instability Over the Life Course Study). Results indicate that gender, race/ethnicity, and social class are associated with initial SRH disparities. Women are less healthy than men; people of color are less healthy than whites; lower educated individuals are less healthy than higher educated individuals. Women’s health declined …

A Demands And Resources Approach To Understanding Faculty Turnover Intentions Due To Work–Family Balance, Megumi Watanabe, Christina Falci

Department of Sociology: Faculty Publications

Using data collected on tenure-line faculty at a research-intensive Midwestern university, this study explored predictors of faculty job turnover intentions due to a desire for a better work–family balance. We adopted Voydanoff’s theoretical framework and included demands and resources both within and spanning across the work and family domains. Results showed that work-related demands and resources were much stronger predictors of work–family turnover intentions than family-related demands or resources. Specifically, work-to-family negative spillover was positively associated with work–family turnover intentions, and two work-related resources (job satisfaction and supportive work–family culture) were negatively associated with work–family turnover intentions. On the other …

Fertility And Infertility: Toward An Integrative Research Agenda, Katherine M. Johnson, Arthur L. Greil, Karina M. Shreffler, Julia Mcquillan

Department of Sociology: Faculty Publications

In this article, we show that social science research on fertility and infertility consists of largely separate research traditions, despite shared interest in pregnancies and births (or lack thereof). We describe four ways these two traditions differ: (1) publication trajectories and outlets, (2) fields of study and major theoretical frameworks, (3) degree of attention to the other topic, and (4) language and definitions used. We then discuss why future integration of these bodies of research would be beneficial, outline potential steps toward rapprochement, and provide common areas of dialogue that could facilitate and enrich these bodies of research. We offer …

Why Sociology Needs Science Fiction, Daniel Hirschman, Philip Schwadel, Rick Searle, Erica Deadman, Ijlal Naqvi

Department of Sociology: Faculty Publications

Grokking Modernity by Philip Schwadel

Resistance and the Art of Words by Rick Searle

A Planet Without Gender by Erica Deadman

Beware of Geeks with Good Intentions by Ijlal Naqvi

In this issue, our contributors take up these concerns in four short essays. Philip Schwadel applies theories of communicative functions to look at sci-fi ’s potential to shape our social understandings. Ijlal Naqvi returns to Isaac Asimov’s Foundation to argue that dreams of perfect social prediction will remain elusive and perhaps undesirable. Erica Deadman showcases how well LeGuin’s Left Hand of Darkness illustrates ideas from the sociology of gender. And …

A Post-Secondary Education Pathway For The Water Workforce, Rudolph A. Rosen, Luis A. Cifuentes, James Fischer, Howard Marquise, John C. Tracey

Water Resources Science and Technology Conference Papers and Abstracts (Archived)

No abstract provided.

Online Teaching Module: Council For The Accreditation Of Educator Preparation (Caep) Key Assessment Example, Stacie K. Pettit, Susan Edwards

Becoming: Journal of the Georgia Association for Middle Level Education

The Augusta University Online Teaching Module is a key assessment administered once during one specified course in each educator preparation program. Augusta University teacher candidates are required to show proficiency in ISTE standards and CAEP standard 1.5. The online teaching model measures candidates’ ability to apply technology standards in order to design, implement, and assess learning experiences to engage students and improve learning. In order to pass the Online Teaching Module, candidates must score 3 out of 4 possible points on at least five of the six indicators. If a candidate does not pass this assessment, goals will be created …

A Survey Of Clustering Analysis And Clustering Analysis In Graphs, Raven D. Gilmore

College of Graduate Studies: Theses & Dissertations

Clustering analysis is an important topic in data mining, where data points that are similar to each other are grouped together. Graph clustering deals with clustering analysis of data points that correspond to vertices on a graph. We first survey some most well known algorithms for clustering analysis. Then for graph clustering we note that one of the fundamental factors is the distance measure between vertices. We further examine various known venues for defining such measures and propose some others.