Digital Commons Network^™

Hydrogen Adsorption Into Covalent Organic Frameworks, Aaron Koenig

Theses and Dissertations

The practicality of hydrogen power vehicles relies on the existence of an effective onboard storage method. Using expanded Wang-Landau simulations, we study the adsorption of hydrogen in a series of covalent organic frameworks (COF-102, COF-105 and COF-108). From which adsorption isotherms of H2 are generated at temperatures of 77 K and 298 K. At 77 K the COFs are on par with the Department of Energy's 2015 targets, but fall short at 298 K.

Molecular dynamic simulations of hydrogen in the COFs were also performed. From which the mean square displacement of the H2 molecules was measured to obtain the …

Does Sleep Affect Delayed Onset Muscle Soreness (Doms) In Olympic Hockey Players?, Monique Edith Lamoureux

Theses and Dissertations

A quantitative study was conducted on the 2014 USA Women’s Olympic Hockey Team. Data was collected from the participants asking for the hours of sleep they got the previous night and how sore they were from the training on the previous day. These numbers were then analyzed to see if athletes who got less sleep reported higher soreness ratings. Results showed that two days in Training Cycle 1 had two significant p-values that coincided with the two strongest negative correlations. Training Cycle 3 had one significant p-value trending in the opposite direction of the proposed hypothesis. The hours of sleep …

Multi-Doppler Radar And In Situ Cloud Hydrometeor Analysis Of A North Dakota Snowband And Its Environment On 20 November 2010, Kendell Laroche

Theses and Dissertations

Snowbands can produce locally larger snowfall accumulations as well as reductions in visibility thereby being hazardous to vehicles and aircraft. The study herein is the first to combine multi-Doppler retrieved winds, in situ snow crystal size distributions, and polarimetric radar variables within snowbands for two radar wavelengths. Data includes two polarimetric radars: Doppler on Wheels (DOW) – a mobile X-band polarimetric Doppler weather radar – and the University of North Dakota (UND) polarimetric C-band radar (hereafter: “UND radar”). Also used in this study are data from the two-dimensional cloud (2DC) probe attached to the UND’s Citation II weather research aircraft. …

Understanding And Predicting Bagging Performance Through The Use Of Cfd And Dem Simulations, Matthew Perry Leone

Theses and Dissertations

This thesis will focus on rear discharge bagging performance for Rear Discharge Rear Collect (RDRC), Select Series Lawn & Garden tractors. The problem under investigation pertains to adequately transporting cut grass from the mower deck to the dedicated hopper, without the plugging of the rear discharge chute or the deck mounted chute. The most problematic weather related factors are dew and rain, with the former being the most severe. Conditions creating this problem typically occur during the spring months and when the grass is at its healthiest state.

Field research and data have been collected to gain a better understanding …

Regional Education Associations In North Dakota: Perceptions Of Rea Directors And School Superintendents, Jeffery E. Lind

Theses and Dissertations

This study analyzed the perceptions of North Dakota Regional Education Association (REA) directors and a sample of public school district superintendents regarding their REAs’ delivery of educational services to North Dakota school districts. Qualitative research methods were used, relying primarily on interview data to review, analyze, and compare perceptions of REA directors and school superintendents. The research questions of this study were:

1. How do REA directors perceive the effectiveness and efficiency of REAs?

2. How do school superintendents perceive the effectiveness and efficiency of REAs?

3. What are the commonalities, similarities, and differences of REA director and superintendent perceptions …

Performing The Role Of Sylvestro In Scapino!, Zachary Cal Lee

Theses and Dissertations

The purpose of this thesis is to successfully portray the character of Sylvestro in Frank Dunlop and Jim Dale's Scapino!, an adaptation of Moliere's Les Fourberies de Scapin. In order to fully grasp the comedy of the script, an analysis of the comedy of Scapino! was conducted using French philosopher Henri Bergson's essay Laughter. This helped to find what made situations and characters funny in the script. It also influenced an analysis of the character of Sylvestro. By using Bergson's philosophies and applying them to the research, the third chapter illustrates that the rehearsal process of Scapino! has been successful …

Bank Efficiency Ratios - Can They Be Used To Reliably Predict Future Bank Performance?, Michael James Loebach

Theses and Dissertations

The aim of this study is to assess the predictive ability of the bank efficiency ratio. The popular press, analysts and investors (individuals, institutions and other bank‘s looking for M&A targets) often use the bank efficiency ratio as a current measure of how efficiently a bank earns a dollar of profit for each dollar of expenditure. Implied in the usage of the ratio is that a bank that is performing well today will continue to perform better than peers in the future. To assess the predictive ability of the ratio, I grouped banks into quintiles of profit performance and used …

The Efficacy Of Teaching Academic Vocabulary To Kindergarteners In An Explicit, Literacy Based Method, Hannah Mae Loesch

Theses and Dissertations

Vocabulary test scores from the ZOT, a researcher designed assessment, were obtained from kindergarten students (n=36) involved in a vocabulary intervention pilot study. The purpose of the current study was to (a) investigate if kindergarten students can learn academic vocabulary through a whole classroom approach to intervention during a brief story book reading session, (b) compare academic vocabulary learning between two methodological approaches and (c) compare the differences in learning of specific academic words. Comparison of mean ZOT results suggested (a) participants who did not receive special services through an Individual Education Plan (IEP) learned academic vocabulary (d = 1.76; …

Climate Driven Hillslope Degradation Of Mono Basin Moraine, Eastern Sierra Nevada, California, Usa, Risa Madoff

Theses and Dissertations

Regolith transport within the uppermost 30-50 cm of Earth's surface is responsive to shifts in climate. Rates of surface change affect accumulation rates of sediment and nutrients, thereby affecting ecology, surface stability, and the ability to date landform surfaces. However, little is known about the quantitative effects past climates have had on the long term evolution of the landscape. A space-for-time substitution method was used to study this knowledge gap. Known degradation rates from widely varying climates were used to generate a transfer function where published paleo-temperature records from the Death Valley sediment core (DV93-1) were applied to derive paleo-degradation …

Geothermal Regime Of The Williston Basin In North Dakota, Faye N. Ricker

Theses and Dissertations

Understanding the thermal regime of a large intracontinental basin such as the Williston Basin can be enhanced by analysis of the relationships among radiogenic heat production, surface heat flow, formation temperatures, and gravity and magnetic anomaly patterns. Digital processing of the spatial and causal relationships gives insight into the effect of basement heat production on the thermal state of the basement rocks and the overlying sedimentary successions. These relationships provide valuable insight on the radioactive heat contribution to heat flow, heat flow from the lower crust, composition of the upper crust, and the potential for geothermal power generation. The specific …

Interplay Of Porous Media And Fracture Stimulation In Sedimentary Enhanced Geothermal Systems : Red River Formation, Williston Basin, North Dakota, Caitlyn M. Hartig

Theses and Dissertations

Fracture stimulated enhanced geothermal systems (EGS) can be installed in both crystalline rocks and sedimentary basins. The Red River Formation (Ordovician), which lies between 3.6 and 4.2 km depth in the Williston Basin, is a viable site for installation of sedimentary EGS (SEGS). SEGS is possible there because temperatures in the formation surpass 140° Celsius and the permeability is 0.1-38 mD; fracture stimulation can be utilized to improve performance. The main objectives of this project were 1) to determine the spatial variation of the intrinsic properties of the Red River Formation across the study area, and 2) to understand the …

December 9, 2014, The Dakota Student

The Dakota Student

No abstract provided.

December 5, 2014, The Dakota Student

The Dakota Student

No abstract provided.

Volume 52, Number 16: December 03, 2014, University Of North Dakota

University Letter Archive

No abstract provided.

Reproductive Health Education In Nctb Curriculum And Text Books: A Critical Review, Salma Akhter, Shah Shamim Ahmed, Muhammad Salahuddin

Education, Health & Behavior Studies Student Publications

The Education Policy-2010, paved the way to introduce Reproductive Health (RH) as part of curricula of few selected subjects for the secondary school children in Bangladesh, which can be considered as a first step in the right direction. Consequently subjects like Physical Education and Health and Home Science has been chosen to incorporate some aspects of RH for the students of classes VI-VIII, and Science are for the students of classes IX-X. This article aimed to explore, examine and review critically to what extent incorporation has taken place and whether this has fulfilled the learning needs of the adolescent groups …

Psychometrics And Test-Enhanced Learning In A Patient-Centered Learning Curriculum, Syed Haris Ali

Theses and Dissertations

Validity and reliability of scores obtained on Multiple-choice questions (MCQs), as well as the benefits of test-enhanced learning, have been of interest to medical educator scholars. Presented in this dissertation are four composite studies on these themes. The following hypotheses were tested:

1. Increased MCQ distractor functioning increases the validity and reliability of obtained scores.

2. Correction of item writing flaws (along with enhancement of tested cognitive level) and replacement or removal of non-functioning distractors equally improves psychometric characteristics of MCQs.

3. Repeated testing via free-response items enhances the retention of knowledge of human anatomy, compared with repeated or once-testing …

Privatization Of Air Traffic Control Services In The United States: A Comparison Of Past Government Privatization Efforts In The United States And Other Countries, Daniel Lindsey

Theses and Dissertations

The privatization of air traffic control (ATC) is one possible way to reduce the cost, increase the efficiency, and speed the innovation of ATC in the United States. However, studies from other countries in which ATC services have been privatized show mixed results in these areas and have often involved imposing some kind of fee-for-service pricing system. Furthermore, analyses of privatization efforts in other areas of government demonstrate that such efforts have been controversial and have not always resulted in lower service delivery costs. Therefore, a possible alternative would be to focus on reorganizing the FAA and consolidating services such …

Predicting Irregular Flight Operations Using A Binary Machine Learning Approach Based On National Meteorological Data, Martin Hellwig

Theses and Dissertations

Flight delays are caused by a multitude of external influences as well as revenue driven carrier decisions. Some factors are obvious while others remain inaccessible to the traveling public. Yet knowing of potential flight delays or cancellations in advance can significantly improve passengers’ travel experience and empower them to make informed decisions when flight irregularities occur. We combine a Naïve Bayes - based feature selection method with publicly available meteorological data and flight performance statistics to create a forecasting tool that provides passengers with an improved prediction of potential delays. After promising initial results we optimize our feature selection and …

November 25, 2014, The Dakota Student

The Dakota Student

No abstract provided.

November 21, 2014, The Dakota Student

The Dakota Student

No abstract provided.

November 14, 2014, The Dakota Student

The Dakota Student

No abstract provided.

November 7, 2014, The Dakota Student

The Dakota Student

No abstract provided.

November 4, 2014, The Dakota Student

The Dakota Student

No abstract provided.

Preventing Sleep Deprivation In Shift Nurses: What Is The Best Evidence?, Rhonda D. Wilkins

Theses and Dissertations

Insufficient sleep can lead to a variety of cognitive problems such as impaired learning ability, slow thought processes, slower reaction time, poor mood, risky decision-making, inattention, diminished communication skills, and the danger of falling asleep during critical times. Sleep deprived shift nurses are a risk for making erTors and developing health problems. The purpose of this independent study is to detennine the best evidence to prevent sleep deprivation in shift nurses.

A comprehensive review of the literature was perfonned to detennine best practices of preventing sleep deprivation in shift nurses. Literature searches using CINAHL, Medline, Medline Plus, PubMed, Cochrane Library, …

October 31, 2014, The Dakota Student

The Dakota Student

No abstract provided.

October 28, 2014, The Dakota Student

The Dakota Student

No abstract provided.

October 24, 2014, The Dakota Student

The Dakota Student

No abstract provided.

The Brightest Cluster Galaxy In Abell 85: The Largest Core Known So Far, O. López-Cruz, C. Añorve, M. Birkinshaw, D. M. Worrall, H. J. Ibarra-Medel, Wayne A. Barkhouse, J. P. Torres-Papaqui, V. Motta

Physics Faculty Publications

We have found that the brightest cluster galaxy (BCG) in A85, Holm 15A, displays the largest core known so far. Its cusp radius, r γ = 4.57 ± 0.06 kpc (426 ± 006), is more than 18 times larger than the mean for BCGs and 1 kpc larger than A2261-BCG, hitherto the largest-cored BCG. Holm 15A hosts the luminous amorphous radio source 0039-095B and has the optical signature of a LINER. Scaling laws indicate that this core could host a supermassive black hole (SMBH) of mass M • ~ (109-1011) M ☉. We suggest that cores this large represent a …

October 21, 2014, The Dakota Student

The Dakota Student

No abstract provided.

October 17, 2014, The Dakota Student

The Dakota Student

No abstract provided.