Digital Commons Network^™

Trichloroacetimidates As Alkylating Reagents In C-N Bond Formation And Synthesis Of Aminosteroid And Quinoline Inhibitors Of Src Homology 2 Domain-Containing Inositol Phosphatase (Ship), Daniel Ryan Wallach

Dissertations - ALL

Trichloroacetimidates have frequently been used in the formation of glycosidic bonds and other ethers, which is especially useful for the introduction of ether protecting groups. Trichloroacetimidates have also been used as electrophiles in Friedel-Crafts alkylation reactions. The formation of C-N bonds has also been accomplished utilizing trichloroacetimidates. Most frequently C-N bond formation with trichloroacetimidates is associated with sigmatropic rearrangement of an allylic trichloroacetimidate to an allylic trichloroacetamide. This reaction can proceed thermally or through the use of Lewis acid or transition metal catalysts. Recently, the direct substitution of trichloroacetimidates using nitrogen nucleophiles has been accomplished utilizing transition metal catalysts, which …

Improving The Efficiency Of Energy Harvesting Embedded System, Yukan Zhang

Dissertations - ALL

In the past decade, mobile embedded systems, such as cell phones and tablets have infiltrated and dramatically transformed our life. The computation power, storage capacity and data communication speed of mobile devices have increases tremendously, and they have been used for more critical applications with intensive computation/communication. As a result, the battery lifetime becomes increasingly important and tends to be one of the key considerations for the consumers. Researches have been carried out to improve the efficiency of the lithium ion battery, which is a specific member in the more general Electrical Energy Storage (EES) family and is widely used …

Searches For The Exclusive Higgs And The Charged Higgs Bosons With The Atlas Detector At The Lhc, Last Feremenga

Physics Dissertations - Archive

In this thesis, searches for the exclusive Standard Model (SM) and charged hMSSM Higgs bosons are performed. While observations of the SM Higgs boson in 2012 by ATLAS and CMS collaborations were ground-breaking, several of the SM Higgs boson properties such as its coupling strengths and branching ratios of its decays still carry large systematic uncertainties. Higgs boson candidates from exclusive production could lower these systematic uncertainties due to their cleaner production environment, improving knowledge of the SM Higgs boson sector. Since the charged Higgs boson is not included in the SM, its evidence would clearly indicate physics beyond the …

Digital Citizenship In 21st Century Education, Aimee Green Logan

Dissertations, Masters Theses, Capstones, and Culminating Projects

Recent Federal Government initiatives have affected equitable public school funding, which prevents many schools from becoming compliant with the California Common Core Standards. Presently, public schools in California must adopt Common Core State standards, which require the integration of technology within the classroom, however, there are no specific standards and or guidelines within the CCCS that address how students should safely conduct themselves online. This has left students and teachers unprepared to adequately support the growing needs of students online, especially without standards addressing digital literacy. Students who go online face cyberbullying, predatory contact, identity theft and other consequences that …

2016 Winter Graduate & Undergraduate Commencement, Lindenwood University

Commencement Programs

Lindenwood University Commencement program.

Assessing Data Quality In Citizen Science, Margaret Kosmala, Andrea Wiggins, Alexandra Swanson, Brooke Simmons

Information Systems and Quantitative Analysis Faculty Publications

Ecological and environmental citizen‐science projects have enormous potential to advance scientific knowledge, influence policy, and guide resource management by producing datasets that would otherwise be infeasible to generate. However, this potential can only be realized if the datasets are of high quality. While scientists are often skeptical of the ability of unpaid volunteers to produce accurate datasets, a growing body of publications clearly shows that diverse types of citizen‐science projects can produce data with accuracy equal to or surpassing that of professionals. Successful projects rely on a suite of methods to boost data accuracy and account for bias, including iterative …

Notes From The Director, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.

Full Issue, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.

About The Mcnair Scholars Program, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.

The Impact Of A Student Device Technology Integration Professional Development Program On K-6 Performance Data, Peter Grostic

Masters Theses

When schools choose to secure devices for their students to integrate into class, they are engaging in a student device technology integration initiative. Results of such initiatives so far have been inconsistent (Bebell & Kay, 2010, Gulek & Demirtas, 2005). These inconsistencies may be, in part, due to poor professional development and/or incomplete data collection. The purpose of this study is to examine the impact of a professional development program for teachers on the effectiveness of a student device technology integration initiative. “Effectiveness” will be defined by standardized test data as well as student attendance data and student behavior referral …

Electronic Deer Warning System, David Zhuo, Anlang Lu

Computer Engineering

Deer-vehicle collisions (DVCs) are extremely dangerous, often injuring or even killing drivers. Unfortunately, this form of automotive accident is commonplace in the United States. According to the NHTSA, DVCs result in 200 human deaths a year.2

Despite these deadly incidents, there currently are no deployed federal or state systems for preventing DVCs. There are many consumer electronic deer deterrent products, but their long-term effectiveness is questionable.3 In fact, there does not appear to be much research into electronic deer deterrent systems. Aside from constant audio output and electric shock, no other means of electronic deterrent exist. Even if fixed deterrents …

Active Contact Lens - Low Power Backscattering Sensor-To-Antenna Integration Circuitry, Caleb B. Porter

Electrical Engineering

The Active Contact Lens measures the cornea-scleral radius of the wearer’s eye, which correlates to intraocular pressure (IOP), Glaucoma’s primary indicator. IOP varies throughout the day, and is drastically different from person to person, so constantly measuring it over a period of a few days can provide individualized tracking of the disease’s development and will help doctors develop personalized treatment schedules to treat the disease more precisely.

The Active Contact Lens sensor measures strain, based on the cornea-scleral radius, and reports the results wirelessly, to allow monitoring of an individual’s IOP over time. The lens is powered similarly to a …

Integration Over Curves And Surfaces Defined By The Closest Point Mapping, Catherine Kublik, Richard Tsai

Mathematics Faculty Publications

We propose a new formulation for integrating over smooth curves and surfaces that are described by their closest point mappings. Our method is designed for curves and surfaces that are not defined by any explicit parameterization and is intended to be used in combination with level set techniques. However, contrary to the common practice with level set methods, the volume integrals derived from our formulation coincide exactly with the surface or line integrals that one wishes to compute. We study various aspects of this formulation and provide a geometric interpretation of this formulation in terms of the singular values of …

Doppler Temperature Coefficient Calculations Using Adjoint-Weighted Tallies And Continuous-Energy Cross Sections In Mcnp6, Matthew A. Gonzales

Nuclear Engineering ETDs

The calculation of the thermal neutron Doppler temperature reactivity feedback co- efficient, a key parameter in the design and safe operation of advanced reactors, using first order perturbation theory in continuous energy Monte Carlo codes is challenging as the continuous energy adjoint flux is not readily available. Traditional approaches of obtaining the adjoint flux attempt to invert the random walk process as well as require data corresponding to all temperatures and their respective tem- perature derivatives within the system in order to accurately calculate the Doppler temperature feedback.

A new method has been developed using adjoint-weighted tallies and On-The-Fly (OTF) …

Optimal Sensing And Transmission In Energy Harvesting Sensor Networks, Xianwen Wu

Graduate Theses and Dissertations

Sensor networks equipped with energy harvesting (EH) devices have attracted great attentions recently. Compared with conventional sensor networks powered by batteries, the energy harvesting abilities of the sensor nodes make sustainable and environment-friendly sensor networks possible. However, the random, scarce and non-uniform energy supply features also necessitate a completely different approach to energy management.

A typical EH wireless sensor node consists of an EH module that converts ambient energy to electrical energy, which is stored in a rechargeable battery, and will be used to power the sensing and transmission operations of the sensor. Therefore, both sensing and transmission are subject …

A Phenomenological Study Of Practicing Educators’ Personal And Collaborative Experiences Within A Climate Of High Stakes Individual Accountability, Kathy L. Stewart

Dissertations

With the national focus in education turning to increasing student achievement and closing achievement gaps between demographic groups, federal and state policy has extended responsibility and high stakes accountability for student growth and achievement. Overall, student achievement status and elimination of achievement gaps between demographically defined sub-groups of students remain cornerstones of accountability under ESEA and now ESSA. Under the Obama Administration, however, accountability for academic growth was extended to individual classroom teachers and school and district-level administrators through federal policy provisions tying student growth to performance evaluation. As a result, many states, including Michigan, enacted legislation to mandate high …

The Impact Of Procedural Compliance To The Individualized Education Program Document On Student Achievement And Academic Benchmarks, Christine Robertson

Dissertations

Currently, the practice of special education service delivery is undergoing a transformation. This transformation is largely due to the United State Department of Education Office of Special Education’s current framework of “results driven accountability” for the determination of program effectiveness (USDOE, 2011). Since the inception of the Individuals with Disabilities Education Act (IDEA) more than 40 years ago, students with disabilities have been provided increasing access to general educational programs and curriculum. Academic outcomes for those same students, however, have not improved, and the achievement gap between students with and without disabilities continues to widen when measured on national and …

Preparation Of Aminoalcohols And Their Application For The Synthesis Of Heterocycles And As Potential Sensors For Nerve Agents, David L. Sellers

Dissertations

Oxazoles and oxazolines are important heterocyclic scaffolds commonly used in pharmaceuticals and optoelectronic materials. Traditionally these heterocyclic compounds are prepared by condensation methodology that suffers from poor reactivity when using electron deficient or sterically crowded reaction partners. Condensation methods also exhibit low tolerance of many functional groups as the reactions typically use strong acids and high temperatures. This dissertation describes an alternate strategy for the formation of these compounds by employing an epoxide opening followed by oxidation to form these heterocyclic compounds.

Epoxide opening reactions with primary aliphatic, allylic, and benzylic amines, aminolysis reactions, often achieve high yields regardless of …

Pedagogical Moves As Characteristics Of One Instructor’S Instrumental Orchestrations With Tinkerplots And The Ti-73 Explorer: A Case Study, James L. Kratky

Dissertations

Those supporting contemporary reform efforts for mathematics education in the United States have called for increased use of technologies to support student-centered learning of mathematical concepts and skills. There is a need for more research and professional development to support teachers in transitioning their instruction to better meet the goals of such reform efforts.

Instrumental approaches to conceptualizing technology use in mathematics education, arising out of the theoretical and empirical work in France and other European nations, show promise for use to frame studies on school mathematics in the United States. Instrumental genesis is used to describe the bidirectional and …

An Integrated Approach For A Better Understanding Of The Paleo-Hydrology And Landscape Evolution In The Sahara During The Previous Wet Climatic Periods, Abotalib Zaki Abotalib Farag

Dissertations

Paleoclimatic regimes over Saharan Africa alternated between dry and wet periods throughout the Pleistocene Epoch, and it is during the wet periods that the Saharan fossil aquifers were recharged. The present study investigates the role of groundwater-related processes in shaping the Saharan landforms (e.g., theater-headed valleys [THV]; depressions, escarpments, playas, and tufa deposits) over areas occupied by the largest of these aquifer systems, the Nubian Sandstone Aquifer System (NSAS). The present study reviews the suggested hypotheses for the origin of these landforms in the Sahara, and in similar settings elsewhere, and presents evidence in support of the following: during the …

Design And Validation Of An Electro-Hydraulic Pressure-Control Valve And Closed-Loop Controller, Jerry Boza

Dissertations

Electro-hydraulic pressure-control valves are used in many applications, such as manufacturing equipment, agricultural machinery, and aircrafts to name a few. They are often used to actuate hydraulic clutches, such as those found in power shift transmissions. A traditional pressure-control valve with open-loop control algorithm is typically used in clutch applications. This scheme often results in inconsistent or undesirable system behavior due to the nature of open-loop control as well as the nonlinear system dynamics and uncertainties.

In this research two new electro-hydraulic pressure-control valves were designed in order to decouple the valve and control port (hydraulic) dynamics. This was achieved …

Collective Personalized Change Classification With Multiobjective Search, Xin Xia, David Lo, Xinyu Wang, Xiaohu Yang

Research Collection School Of Computing and Information Systems

Many change classification techniques have been proposed to identify defect-prone changes. These techniques consider all developers' historical change data to build a global prediction model. In practice, since developers have their own coding preferences and behavioral patterns, which causes different defect patterns, a separate change classification model for each developer can help to improve performance. Jiang, Tan, and Kim refer to this problem as personalized change classification, and they propose PCC+ to solve this problem. A software project has a number of developers; for a developer, building a prediction model not only based on his/her change data, but also on …

Unsupervised Feature Selection For Outlier Detection By Modelling Hierarchical Value-Feature Couplings, Guansong Pang, Longbing Cao, Ling Chen, Huan Liu

Research Collection School Of Computing and Information Systems

Proper feature selection for unsupervised outlier detection can improve detection performance but is very challenging due to complex feature interactions, the mixture of relevant features with noisy/redundant features in imbalanced data, and the unavailability of class labels. Little work has been done on this challenge. This paper proposes a novel Coupled Unsupervised Feature Selection framework (CUFS for short) to filter out noisy or redundant features for subsequent outlier detection in categorical data. CUFS quantifies the outlierness (or relevance) of features by learning and integrating both the feature value couplings and feature couplings. Such value-to-feature couplings capture intrinsic data characteristics and …

Community College Developmental Mathematics Classrooms: Understanding Supportive Faculty Strategies And Impact On Student Success, Rachel Santiago

Education Doctoral

The purpose of this quantitative study was to explore supportive faculty strategies as described by students and faculty of developmental mathematics courses at two community colleges in Upstate New York. Using validation theory, the study focused on compiling information from students and faculty regarding the importance of supportive factors inside and outside of the developmental mathematics classrooms. Data were collected from surveys administered in the spring 2016 semester, and analyses of these data led to several findings: (a) students significantly rated faculty lower than faculty self-reported on caring instruction; (b) there was a weak, positive correlation that showed the longer …

Reforming The Contested Convention: Rethinking The Presidential Nomination Process, Michael T. Morley

Fordham Law Review

The presidential nomination process could be substantially improved through a few minor tweaks that would reduce unnecessary uncertainty, bolster its democratic underpinnings, and improve the connections among its various components. First, certain fundamental rules governing national conventions should be determined well in advance of the presidential nominating process, before any primaries or caucuses are held or delegates selected, and not be subject to change or suspension at the convention itself. Second, parties should enhance the democratic moorings of their national conventions by requiring presidential candidates to win a greater number of presidential preference votes to be placed into nomination. Third, …

Is Cyberattack The Next Pearl Harbor?, Lawrence J. Trautman

North Carolina Journal of Law & Technology

No abstract provided.

Using Near-Infrared Photography To Better Study Snow Microstructure And Its Variability Over Time And Space, Jesse Raymond Dean

Boise State University Theses and Dissertations

The methods typically used to study snow stratigraphy, microstructure, and variability are expensive, cumbersome, and often highly subjective. Near-infrared (NIR) photography is a low-cost, portable tool to rapidly collect high-resolution, objective measurements of snow microstructure and variability. To expand its application, an active-source NIR flash was introduced to the traditionally passive-source method. NIR imagery was collected alongside proven snowpit methods such as manual observation, Snow Fork wetness, and Snow Micro-Penetrometer hardness profiles. NIR photography was also deployed in five pits along a 10.6 km transect in Grand Mesa, CO, to track stratigraphy variations in space. The NIR flash was found …

Latin Squares And Their Applications To Cryptography, Nathan O. Schmidt

Boise State University Theses and Dissertations

A latin square of order-n is an n x n array over a set of n symbols such that every symbol appears exactly once in each row and exactly once in each column. Latin squares encode features of algebraic structures. When an algebraic structure passes certain "latin square tests", it is a candidate for use in the construction of cryptographic systems. A transversal of a latin square is a list of n distinct symbols, one from each row and each column. The question regarding the existence of transversals in latin squares that encode the Cayley tables of finite groups …

Continuous Snow Water Equivalent Measurements With Ultra-Wideband Radar: Towards A New Generation Of Real-Time Automated Snow Sensor Arrays, Mark Edward Robertson

Boise State University Theses and Dissertations

Snow accounts for the majority of precipitation in many areas of the Western United States, and accurate measurements of the amount of water contained in the snowpack, known as snow water equivalent (SWE), are therefore important for water resource managers. The National Resources Conservation Service Snow Telemetry (SNOTEL) sites are the current standard remote measurement of SWE, with approximately 800 sites across the Western United States. Measurements at these sites are made by snow pillows, which weigh the overburden pressure of a snowpack, and are relatively expensive to install and maintain. Spring runoff is modeled using a 30-year average of …

Controls On The Presence, Concentration, Storage, And Variability Of Soil Inorganic Carbon In A Semi-Arid Watershed, Christopher Allen Stanbery

Boise State University Theses and Dissertations

Soil inorganic carbon (SIC) constitutes approximately 40% of terrestrial soil carbon and is an integral part of the global carbon cycle; however, the controls on the storage and flux of inorganic carbon are poorly understood. Soil forming factors controlling SIC storage and flux include climate, organisms, relief, parent material, and time (Jenny, 1941). Rainfall is a primary factor controlling SIC accumulation in arid and semi-arid regions, but the hierarchy of controls on SIC development is complex. The Reynolds Creek Experimental Watershed in southwestern Idaho is an ideal location to study factors influencing SIC, as the carbon pool transitions from predominately …