Digital Commons Network^™

Purification And Characterization Of Bromocresol Purple For Spectrophotometric Seawater Alkalinity Titrations, Taymee A. Brandon

Undergraduate Theses, Professional Papers, and Capstone Artifacts

The topic of my research is the purification of the sulfonephthalein indicator bromocresol purple (BCP). BCP is used as an acid-base indicator in seawater alkalinity determinations. Impurities in sulfonephthalein indicator salts often result in significant errors in pH values³. High-precision inorganic carbon (i.e. CO₂) measurements are necessary to document the changes in ocean chemistry and pH due to anthropogenic CO₂­ uptake by the earth’s oceans³. In order to reduce the error in seawater pH determinations and the general understanding of the CO₂ cycle, BCP must be purified and characterized. Previous work …

Studies Of The Effectiveness Of Bisphosphonate And Vanadium-Bisphosphonate Compounds In Vitro Against Axenic Leishmania Tarentolae, Amy Christensen, Craig C. Mclauchlan, Anne Dolbecq, Pierre Mialane, Marjorie A. Jones

Faculty Publications – Chemistry

Leishmaniasis is a disease that is a significant problem for people, especially in tropical regions of the world. Current drug therapies to treat the disease are expensive, not very effective, and/or of significant side effects. A series of alkyl bisphosphonate compounds and one amino bisphosphonate compound, as well as alendronate and zoledronate, were tested as potential agents against Leishmania tarentolae. Also, two polyoxometalates (POMs) with nitrogen-containing bisphosphonate ligands, vanadium/alendronate (V5(Ale)2) and vanadium/zoledronate (V3(Zol)3), were tested against L. tarentolae and compared to the results of the alendronate and zoledronate ligands alone. Of the compounds evaluated in this study, the V5(Ale)2 …

An Active Learning Approach To Teaching Tough Topics: Personal Jurisdiction As An Example, Cynthia M. Ho

Faculty Publications & Other Works

No abstract provided.

Rate Of Change 4, Ruth Dover

A Simple Introduction to Rates

No abstract provided.

1. Monotonic Sequences, Ruth Dover

Series

Practice with monotonic sequences.

Approximations 3, Ruth Dover

Integrals

Understanding Riemann sum approximations, including technology.

2. Geometric Series, Ruth Dover

Series

Quick review of geometric series.

Series 01, Ruth Dover

Series

Asks students to create a polynomial function for y = ln(1 + x), extends the polynomial to a series, examines the interval of convergence and error.

Series 04, Ruth Dover

Series

A closer examination of y = cosx and y = sinx, including error estimation.

2. Population, Ruth Dover

Differential Equations

Introduction to logistic population growth.

More Limits, Ruth Dover

Limits

No abstract provided.

Limits1, Ruth Dover

Limits

A basic idea to limits and notation.

2. Intro To Concavity, Ruth Dover

More on Derivatives

Looking at changes in ƒ’ to understand concavity.

1. "Investigating The Impact Of Changes In Carbon Dioxide Concentration On Ecosystems", Sarah O'Leary-Driscoll, Crystal Randall

Ecosystem Disruption & Climate Change

Question: Does the concentration of carbon dioxide affect air temperature in a closed environment?

3. Upper Bounds, Ruth Dover

Series

Understanding upper bounds and a proof of the divergence of the harmonic series.

Math 218--Topics In Statistics, David Joyce

Syllabus Share

No abstract provided.

Approximating Alternating Series, Ruth Dover

Series

Error bounds with alternating series.

3: Drugs And De's, Ruth Dover

Differential Equations

Making a connection between discrete recursion and differential equations.

Rate Of Change 3, Ruth Dover

A Simple Introduction to Rates

No abstract provided.

Crummer Suntrust Portfolio Recommendations: Crummer Investment Management [2016], David Daubert, Shawn Draheim, Jeremy Gerbauer, Brett Gourlay, Martin Kronberg, David Kumar, Devin Mccreary, Hugh Mcmillan V, Nathan Morgan, Jerry Schuster, Jordan Anduaga-Todd

Crummer Truist Portfolios

The most notable aspect of our strategy is an increase in bond holdings to 18% — the top of the range permitted by our investment policy statement. This defensive position assumes bonds will be low risk in a year of gently rising interest rates and because we see little upside in the stock market. For our tactical allocation, we added sector ETFs to each of our sectors to ensure diversification within sectors and limited the individual names to three per sector, allowing for more selectivity and in-depth research. We have tilted the portfolio towards consumer discretionary, consumer staples and telecommunications, …

Essays On Marketing Analytics Competition, Connectedness, And Controversy, Changan Zhang

2016

A consensus has been reached nowadays on the importance of data-based decision making for both data-driving pioneers such as web companies, and traditional industries or departments, such as pharmaceutical organizations, or even movie or television production companies, etc. How we collect, process, and make use of larger, fast changing, and diversified data effectively and efficiently is getting attention from statisticians, information engineers, and business analytics practitioners. Aside from thoroughly taking advantage of data on hand, data adventurers seek new data resources, which are potentially messier and more unstructured than more traditional data.

This research provides a road map to practitioners …

Inverse Scattering For The Zero-Energy Novikov-Veselov Equation, Michael Music

Theses and Dissertations--Mathematics

For certain initial data, we solve the Novikov-Veselov equation by the inverse scat- tering method. This is a (2+1)-dimensional completely integrable system that gen- eralizes the (1+1)-dimensional Korteweg-de-Vries equation. The method used is the inverse scattering method. To study the direct and inverse scattering maps, we prove existence and uniqueness properties of exponentially growing solutions of the two- dimensional Schrodinger equation. For conductivity-type potentials, this was done by Nachman in his work on the inverse conductivity problem. Our work expands the set of potentials for which the analysis holds, completes the study of the inverse scattering map, and show that …

2016 Bethsaida Field Report, Rami Arav, Carl Savage, Kate Raphael, Vanessa Workman, Kenneth M. Bensimon, Nicolae Roddy

Field Reports

No abstract provided.

Developing A Dance/Movement Therapy Approach To Qualitatively Analyzing Interview Data, Tomoyo Kawano

Expressive Therapies Dissertations

The objective of this research was to develop a model for an embodied-artistic approach to analyzing interview data that could contribute to an enhanced narrative account and/or offer an alternate perspective. A new model was formulated by adapting and/or critically applying a combination of previously developed analytical frameworks. Dance/movement therapy (DMT) skills that encompass ways of listening through an embodied, empathic, aesthetic manner; and a movement observation and assessment tool, Laban Movement Analysis (LMA) were at the core of this explicatory process. The researcher’s movement preferences were identified in the preparatory phase with a certified movement analyst (CMA) as a …

Technology Underutilized: Principal’S Role In Creating A Culture Of High-Level Uses, Darlene A. Foley

Educational Studies Dissertations

Teachers need to maximize technology to support student learning by drawing upon varying pedagogical orientations; however, teacher-centered, highly structured approaches that foster low-level thinking is more prevalent. Although highly structured approaches help develop students’ foundational skills and content knowledge, student-centered, open-ended approaches foster high-level thinking aimed by the Common Core State Standards (CCSS). Literature suggests principals have an important role in the implementation of the CCSS and technology integration, but it does not capture the ways principals help teachers adopt high-level uses of technology. This research asks the overarching question, “What actions, decisions, and relationships do principals perceive contributed to …

Exploring Meteorology Education In Community College: Lecture-Based Instruction And Dialogue-Based Group Learning, Jason Paul Finley

Educational Studies Dissertations

This study examined the impact of dialogue-based group instruction on student learning and engagement in community college meteorology education. A quasi-experimental design was used to compare lecture-based instruction with dialogue-based group instruction during two class sessions at one community college in southern California. Pre- and post-tests were used to measure learning and interest, while surveys were conducted two days after the learning events to assess engagement, perceived learning, and application of content. The results indicated that the dialogue-based group instruction was more successful in helping students learn than the lecture-based instruction. Each question that assessed learning had a higher score …

An Exploration Of Success Factors From The Perspectives Of Developmental Mathematics Students, Stacy Atkinson

Educational Studies Dissertations

Students who enter college underprepared for college-level coursework face tremendous barriers, including referral to one or more levels of developmental education. However, the requirement to complete developmental mathematics often becomes a primary barrier for students ever being able to complete a degree. Students who enter underprepared for college-level coursework and also identify as first-generation face even larger barriers to realizing success. Given this reality, community colleges – where most developmental education programs are housed – are seeking ways to better support students needing remediation to increase their chances of success and completion. Using the recently implemented co-requisite model of instruction …

Invertible And Normal Composition Operators On The Hilbert Hardy Space Of A Half–Plane, Valentin Matache

Mathematics Faculty Publications

Operators on function spaces of form... is a fixed map are called composition operators with symbol φ. We study such operators acting on the Hilbert Hardy space over the right half-plane and characterize the situations when they are invertible, Fredholm, unitary, and Hermitian. We determine the normal composition operators with inner, respectively with Möbius symbol. In select cases, we calculate their spectra, essential spectra, and numerical ranges.

Some New Refinements Of The Arithmetic, Geometric And Harmonic Mean Inequalities With Applications, Steven G. From, R. Suthakaran

Mathematics Faculty Publications

No abstract provided.

Post-Graduation Plans Survey 2016 (New Version), Uno Office Of Institutional Effectiveness

Graduation

Thanks for completing this post-graduation plans survey. The information you provide is used by UNO to report on student outcomes and to improve programs in support of students. The survey takes less approximately 5 minutes to complete. We do not publish or share names or individual responses. Data from the survey is used to produce summary information for internal and external planning and reporting, including telling current and future students what our graduates are doing upon completion of their degree.