Digital Commons Network^™

Evaluation Of Selected Spectral Vegetation Indices In Senescent Rangeland Canopy Using Landsat Imagery, Marla Collins

Theses and Dissertations

Grassland birds are diminishing more steadily and rapidly than other North American birds in general. The nesting success of some grassland bird species depends on the amount of nonproductive vegetation (NPV). To estimate NPV land managers are currently using the Robel pole visual obstruction reading methods. Researchers with the USDA Agricultural Research Service's (ARS) Northern Great Plains Research Laboratory in Mandan, ND, recently established statistical relationships between photosynthetic vegetation (PV), NPV and spectral vegetation indices (SVIs) derived from more sensitive and more detailed, but less accessible and more costly hyperspectral aerial imagery. This study is an extension of this previous …

Geometry Of Quivers, Patrick Andrew Durkin

Theses and Dissertations

A quiver is a directed graph, but the term usually implies such a graph is being considered along with representations. These representations consist of vector spaces and linear transformations. We explore some the connections between quivers and geometric structures. To begin, we consider a theorem that says every projective variety can be considered as a quiver Grassmannian. The reasoning of the proof is demonstrated by example. We then prove the existence of a countable quiver containing every finite quiver as a subquiver. Following this we consider some properties of its category of representations. Finally, we give an overview of quiver …

Assessing Student Learning: A U.S./U.K. International Comparative Study, Kristin Anne Garaas-Johnson

Theses and Dissertations

This research examines the role of assessments of student learning in the United States, specifically a school system in North Dakota, comparatively to that of a school system in Surrey, England. Using a conceptual framework that is influenced by the work of Stiggins, Arter, Chappuis, and Chappuis with the Assessment Training Institute (2011) and the Assessment Reform Group (2002) on creating effective, balanced assessments for learning, three questions guided my study:

1. What are secondary (students ages 14-18) educators' beliefs about what, why, how, and for whom school systems are assessing students' learning?

2. What is the difference between educators' …

Teachers' Perceptions Of Professional Development In Urban And Rural Schools In North Dakota, Thomas Erik Kana

Theses and Dissertations

Within the past decade, the North Dakota legislature and state government officials have taken steps to ensure equity in education between urban and rural schools, addressing funding issues and the implementation of regional education associations. This research investigated those efforts by examining professional development as one indicator of equity. This research focused on three research questions: 1. What are the teachers' perceptions of professional development in urban schools in North Dakota? 2. What are the teachers' perceptions of professional development in rural schools in North Dakota? 3. What issues of equity exist as they relate to professional development in urban …

A Foundational Methodology For Determining System Static Complexity Using Notional Lunar Oxygen Production Processes, Nicholas J. Long

Theses and Dissertations

This thesis serves to develop a preliminary foundational methodology for evaluating the static complexity of future lunar oxygen production systems when extensive information is not yet available about the various systems under consideration. Evaluating static complexity, as part of a overall system complexity analysis, is an important consideration in ultimately selecting a process to be used in a lunar base. When system complexity is higher, there is generally an overall increase in risk which could impact the safety of astronauts and the economic performance of the mission. To evaluate static complexity in lunar oxygen production, static complexity is simplified and …

Advances In The Electrodeposition Of Aluminum From Ionic Liquid Based Electrolytes, Kirt Leadbetter

Theses and Dissertations

Aluminum plating is of considerable technical and economic interest because it provides an eco-friendly substitute for cadmium coatings used on many military systems. However, cadmium has been determined to be a significant environmental safety and occupational health (ESOH) hazard because of its toxicity and carcinogenic nature. Furthermore, the cost of treating and disposing of generated wastes, which often contain cyanide, is costly and is becoming prohibitive in the face of increasingly stringent regulatory standards. The non-toxic alternative aluminum is equivalent or superior in performance to cadmium. In addition, it could serve to provide an alternative to hexavalent chromium coatings used …

Climate Change Detection And Attribution Using Gps Radio Occultation And Cmip5 Gcm Data, Sergey Molodtsov

Theses and Dissertations

General circulation models (GCMs) show a distinct anthropogenic fingerprint - the thermal expansion of Hadley Cell. This response to the increase of atmospheric concentration of greenhouse gases (GHG) is evident under a variety of forcing scenarios. However the investigation of the anthropogenic signal in the real climate system is challenging because anthropogenic signal is immersed in the natural variability and it requires highly quality data to separate signal from background variability. GPS Radio Occultation (GPS RO) technique becomes close to meeting all of the quality requirements, enabling it to become the benchmark for the climate data. The analysis was implemented …

Progressing Science, Technology, Engineering, And Math (Stem) Education In North Dakota With Near-Space Ballooning, Marissa Elizabeth Saad

Theses and Dissertations

The United States must provide quality science, technology, engineering, and math (STEM) education in order to maintain a leading role in the global economy. Numerous initiatives have been established across the United States that promote and encourage STEM education within the middle school curriculum. Integrating active learning pedagogy into instructors' lesson plans will prepare the students to think critically - a necessary skill for the twenty first century.

This study integrated a three-week long Near Space Balloon project into six eighth grade Earth Science classes from Valley Middle School in Grand Forks, North Dakota. It was hypothesized that after the …

Reading Comprehension Assessment: A Comparison Of Academic And Clinical Measures, Emily Ann Stephens

Theses and Dissertations

The Measures of Academic Progress (MAP) test is a computer-based academic assessment of reading comprehension that is used by school districts nationwide. The MAP has established reliability, but its validity is not widely available. The purpose of this study was to seek validity for the MAP by comparing it to the Gray Oral Reading Test--5th edition (GORT-5), a frequently used and valid clinical test of reading comprehension. Participants included twenty-eight fourth grade students ranging from 9;7 to 10;8 years of age, with a mean of 10;2. Each participant completed the GORT-5 and MAP test. The GORT-5 and MAP each yield …

Novel Approaches Investigating Predisposition For Maternal Group B Streptococcus Colonization, Michelle Lynn Wright

Theses and Dissertations

Group B streptococcus (GBS) is the leading cause of infectious neonatal morbidity and mortality in the United States. Maternal GBS colonization is the primary risk factor associated with neonatal infection. However, maternal risk factors for GBS colonization are ambiguous. A conceptual framework of gene-environment interactions guided the approach for this study analyzing DNA methylation, serum cytokines, and vitamin D levels. The purpose of this study was to identify potential maternal biomarkers associated with GBS colonization. Descriptive statistics were conducted to depict sample characteristics (n=42 pregnant women) and identify potential confounding variables including, but not limited to: medical history, race, weight, …

Statistical Analysis Of The Effectiveness Of The 'You're Hired!' Program At Changing Students' Attitudes Towards Engineering, Kristin Michelle Brevik

Theses and Dissertations

With the growing need for qualified employees in STEM-based careers, it is critical to develop activities for middle and high school students to increase their awareness of opportunities in these areas. With proper design, increasing awareness of STEM-based careers in conjunction with overcoming current stereotypes can lead to a change in attitudes towards these various careers. As part of this research project I have developed `You're Hired!', a program providing middle and high school students a hands-on, authentic experience in various engineering roles while assessing the change in a student's attitude towards the engineering profession. Project design also incorporates an …

Minnesota Paraeducators' Perceptions Of The Barriers To Becoming Licensed Special Education Teachers, Joni Burris

Theses and Dissertations

Public schools across the country are facing a critical shortage of licensed special education teachers. For many reasons, paraeducators have been considered strong teacher candidates and have been recruited into the teaching profession intermittently for decades. Paraeducators who decide to obtain their teaching license often experience obstacles to this endeavor: money, time, family obligations, navigating the university system, and academics.

This research study examined and analyzed Minnesota paraeducators' perceptions of the barriers to obtaining their special education teaching license. It also assessed the perceptional differences between Minnesota paraeducators who have completed at least a bachelor's degree and those who have …

Translation Of Aadl To Pnml To Ensure The Utilization Of Petri Nets, Amrita Chatterjee

Theses and Dissertations

Architecture Analysis and Design Language (AADL), which is used to design and analyze software and hardware architectures of embedded and real-time systems, has proven to be a very efficient way of expressing the non-functional properties of safety-critical systems and architectural modeling. Petri nets are the graphical and mathematical modeling tools used to describe and study information processing systems characterized as concurrent and distributed. As AADL lacks the formal semantics needed to show the functional properties of such systems, the objective of this research was to extend AADL to enable other Petri nets to be incorporated into Petri Net Markup Language …

Common Core State Standards: Beware The Trojan Horse, Yee Han Chu

Theses and Dissertations

The Common Core State Standards (CCSS) represent a promise by general education that all students can be college and career ready through the acquisition of essential knowledge, skills, and abilities. These essential elements will be rigorous, supporting the higher-order and independent thinking skills typically associated with the achievement of excellence. CCSS, in short, promises excellence in all students. The needs of those students who demonstrate high ability do not receive any separate mention: (1) how has the concept of excellence been incorporated into the CCSS; and (2) what is the potential impact on high ability students?

These questions are examined …

Grade Level Retention: A Comparative Study Of Beliefs And Practices In North Dakota And Surrey, Kim Englund

Theses and Dissertations

Many regions of the United States retain students who are not performing at grade level, yet a large body of research shows the ineffectiveness of having students repeat an academic year. The United Kingdom practices social promotion rather than retention. This comparative study sought to better understand the practices in these two countries and the research surrounding retention. First, it compared the interventions before and alternatives to retention used by both a North Dakota school district in the United States and two schools in Surrey, England. Second, it outlined a plan for teachers, parents, school administrators, and school policy makers …

Evaluation Of Cmip5 Simulated Clouds And Toa Radiation Budgets Using Nasa Satellite Observations, Erica Kay Dolinar

Theses and Dissertations

A large degree of uncertainty in global climate models (GCMs) can be attributed to the representation of clouds and how they interact with incoming solar and outgoing longwave (Earth emitted) radiation. In this study, the simulated total cloud fraction (CF), cloud water path (CWP), top-of-atmosphere (TOA) radiation budgets and cloud radiative forcings (CRFs) from 28 CMIP5 AMIP models are evaluated and compared to multiple satellite observations from CERES, MODIS, ISCCP, CloudSat, and CALIPSO. The multimodel ensemble mean CF (58.6 %) is, on global average, under estimated by nearly 7 % compared to CERES-MODIS (CM) and ISCCP results, with an even …

Channel Estimation And Correction Methods For Ofdma Based Lte Downlink System, Zahirul Islam

Theses and Dissertations

In present era, cellular communication plays a vital role for communicating over long distance. The number of mobile subscribers is increasing tremendously day by day. 3GPP LTE is the evolution of the UMTS in response to ever-increasing demands for high quality multimedia services according to users' expectations. The average data consumption exceeds hundreds of Megabytes per subscriber per month. To introduce, summarize and get acquainted with this new technology LTE is one of the main objectives of my thesis.

The Downlink is always considered an important factor in terms of coverage and capacity aspects in between Downlink and Uplink factors …

An Investigation On Relationship Between Epistemological Beliefs And Instructional Practice Of Preservice And Inservice Teachers, Jacob Manu

Theses and Dissertations

This quantitative research sought to investigate the relationship between epistemological beliefs and instructional practice of preservice and inservice teachers. Despite the vigorous emphasis and investment on the need for teachers to adopt teaching and learning practices that are more authentic, learner-centered, project-based, meaningful, and context-based, there is a growing trend where inservice teachers are trained in constructivist learning environment but end up adopting traditional learning pedagogies. Thus, teachers are constantly struggling to incorporate the tenets of constructivism into the teaching and learning process. With the use of the discipline-focused epistemological beliefs questionnaire and instructional practice scale, preservice and inservice teachers …

Preparing Administrators For Leadership In The Rural Context, Michael David Mcneff

Theses and Dissertations

The purpose of this study was to identify advantages and disadvantages, such as scarcity of resources, of the rural principalship in North Dakota. The study and review of literature explored availability and lack of resources that impact North Dakota rural principals' leadership. The unique challenges of a rural principalship had an impact and influenced instructional leadership of rural principals. An era of accountability has forced a shift in the principal's role, duties, and expectations (Rice, 2010). This shift has been difficult on both rural and urban principals. This study included a sampling of six rural principals in North Dakota. The …

Bayesian Modeling For Dealing With Uncertainty In Cognitive Radios, Hector Ivan Reyes Moncayo

Theses and Dissertations

Wireless communication systems can be affected by several factors, including propagation losses, co-channel interference, and multipath fading. Uncertainty affects all of these factors making it even more difficult to model these systems. This dissertation proposes the use of probabilistic graphical models (PGM), such as Bayesian Networks and Influence Diagrams, as the core for reasoning and decision making in adaptive radios operating under uncertainty. PGM constitute a tool to understand and model complex relations among random variables. This dissertation explains how to build effective communication models that perform its functions under uncertainty. In addition, this work also presents a spectrum sensing …

Novel Sustainable Structural Materials By Using Benign Waste Materials, M Faisal Riyad

Theses and Dissertations

We propose a Green Cement Paradigm (GCPa) for fabricating environmentally friendly cementitious materials. By using GCPa, we report for the first time, the usage of Class C Fly Ash as a sole source of cementitous phase without any activation by alkali. During this study, Class C Fly Ash, and its composites with sand were fabricated at different compaction stresses by maintaining a low w/c (w-water, c-cement) ratio of 0.17-0.24 in the compacts. The porosity and the number of days for curing played a significant role in the evolution of compressive strength. The experimental results indicate that the curing for 28 …

Shifting The Fat-Tailed Distribution Of Blockbuster Punitive Damages Awards, W. Kip Viscusi, Benjamin J. Mcmichael

Articles

The distribution of blockbuster punitive damages awards has fat tails similar to the distributions of losses from natural disasters Extremely large awards occur more often and are more difficult to predict than if blockbuster awards were distributed normally The size and predictability of awards are important factors in the US Supreme Court's decisions on punitive damages This article examines the effect of the Court's decision in iState Farm v Campbelli on blockbuster punitive damages awards iState Farmi shifts the fat tail of the distribution of blockbuster awards down or "thins" the tail which is consistent with a restraining effect on …

Determining The Origin And Possible Mechanisms Of Qpos In X-Ray Emissions Of Neutron Stars And Black Holes, Brent Thomson

Theses and Dissertations

QPOs (Quasi-Periodic Oscillations) are time oscillations that appear in the light curve of observational data in x-ray bands. They are of mysterious origin although they are believed to be a result of the intense gravity around neutron stars and black holes and emit x-rays from accretion disks. I investigate a derived ratio between two periods has been found in the QPO data. The two periods, which appear as peaks in the power density spectrum have been found to be in a 3:2 ratio and can possibly distinguish theoretical models. In the work presented here, two physical approaches are developed that …

North Dakota State Policy Effects On State Public K-12 Schools' Ability To Offer Effective Professional Development, Stephen Ryan Townsend

Theses and Dissertations

Through research I have identified eight constructs of effective professional development (collaborative, content focused, active practice, inclusive of technology, goal oriented, evaluated, sustained, increases self-efficacy). North Dakota state law requires two days of professional development that are defined by their length of time. The purpose of this quantitative study was twofold: (a) to identify if the eight constructs of effective professional development are embedded in North Dakota public schools' professional development opportunities and (b) whether or not the schools that offer professional development given the restraints of North Dakota state law are offering effective professional development. North Dakota public school …

Patent Trolling Why Bio & Pharmaceuticals Are At Risk, Robin Feldman, Nicholson W. Price Ii

Faculty Scholarship

No abstract provided.

Genetic Dissection And Molecular Approaches Of Root Morphology Of Canola, Muhammad Arif Uz Zaman

Plant Sciences

The inheritance of root vigor and days to flowering were studied in the F2 populations derived from winter- and spring-type crosses and their reciprocal crosses. Root vigor was found to be controlled by three genes whereas, a single dominant gene was found to be responsible for days to flowering. Positive and significant correlation was found between seed yield and yield attributing traits, seed yield and root length, days to flowering and root length. Days to flowering was negatively correlated to seed yield. Linkage map was constructed with 262 SNP and 3 SSR markers. Two QTL for both root vigor and …