Physical Sciences and Mathematics Commons^™

Teacher Education Programs Of Top Pisa Scoring Countries, Stephanie Kafer

Honors Projects

This research paper aims to investigate the teacher education programs of four different countries that have consistently scored high on the international Programme for International Student Assessment (PISA) test. This project intends to answer two questions: What locations consistently perform high on the Programme for International Student Assessment (PISA) test? What do the teacher training programs look like for these locations and are there commonalities between programs of different locations? The first question is answered using statistics of PISA scores from the past twenty years and from those statistics, the top four countries that this paper focuses on are Finland, …

Element Contamination In Port Everglades – Preparing For Ecological Impacts, Laura White

All HCAS Student Capstones, Theses, and Dissertations

Port dredging is of economic importance worldwide but its impacts to the marine environment through the remobilization of elemental contaminants are not well understood. A massive deepening and widening of Port Everglades, Florida, will begin in 2023. Contaminated sediment disturbed during the dredging process could be released and prove to be harmful to three coral reef tracks located beginning 1.5 miles away from the port. This study focused on identifying and quantifying 14 different trace elements: arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), mercury (Hg), lead (Pb), manganese (Mn), molybdenum (Mo), nickel (Ni), selenium (Se), tin (Sn), …

Non-Linear Optical Characterization Of Stressed Materials, Kaylee N. Rellaford

Theses and Dissertations

Interactions between materials, their surfaces, and applied stresses are involved in every man-made construction in the world. Therefore, finding ways to interact without altering inherent properties of materials is of great interest. Surface spectroscopies, including second harmonic generation (SHG) and sum frequency generation (SFG), are inherently noninvasive testing methods. Both SHG and SFG are well-developed techniques that can be used in various applications including the characterization of material state. Both of these techniques allow for a noninvasive analysis of various materials, such as metals and polymers. We have used SHG as a method to characterize the change in signal strength …

Nutrient Intake And Dietary Inflammatory Potential In Current And Recovered Anorexia Nervosa, Olivia Patsalos, Bethan Dalton, Christia Kyprianou, Joseph Firth, Nitin Shivappa Mbbs, Mph, Ph.D., James Hébert Scd, Ulrike Schmidt, Hubertus Himmerich

Faculty Publications

Anorexia nervosa (AN) is characterised by disrupted and restrictive eating patterns. Recent investigations and meta-analyses have found altered concentrations of inflammatory markers in people with current AN. We aimed to assess nutrient intake in participants with current or recovered AN, as compared to healthy individuals, and explore group differences in dietary inflammatory potential as a possible explanation for the observed alterations in inflammatory markers. We recruited participants with current AN (n = 51), those recovered from AN (n = 23), and healthy controls (n = 49). We used the Food Frequency Questionnaire (FFQ), to calculate a Dietary …

Proquest Tdm Studio: A Text And Data Mining Solution, Anamika Megwalu, Anne Marie Engelsen

Faculty Research, Scholarly, and Creative Activity

TDM Studio is an integrated platform offered by ProQuest for data and text mining. TDM stands for text and data mining. This cloud-based, all-in-one innovative product is designed to offer researchers a clean interface with rights-cleared content, Jupyter notebook, and data visualization tools. As a result, researchers can now search Pro-Quest databases, create large datasets, import data to Jupyter notebook for analysis, and download results within a day.

Error Propagation And Algorithmic Design Of Contour Integral Eigensolvers With Applications To Fiber Optics, Benjamin Quanah Parker

Dissertations and Theses

In this work, the finite element method and the FEAST eigensolver are used to explore applications in fiber optics. The present interest is in computing eigenfunctions u and propagation constants β satisfing [sic] the Helmholtz equation Δu + k²n²u = β²u. Here, k is the freespace wavenumber and n is a spatially varying coefficient function representing the refractive index of the underlying medium. Such a problem arises when attempting to compute confinement losses in optical fibers that guide laser light. In practice, this requires the computation of functions u referred to as …

Machine Learning And Radiomic Features To Predict Overall Survival Time For Glioblastoma Patients, Lina Chato, Shahram Latifi

Electrical & Computer Engineering Faculty Research

Glioblastoma is an aggressive brain tumor with a low survival rate. Understanding tumor behavior by predicting prognosis outcomes is a crucial factor in deciding a proper treatment plan. In this paper, an automatic overall survival time prediction system (OST) for glioblastoma patients is developed on the basis of radiomic features and machine learning (ML). This system is designed to predict prognosis outcomes by classifying a glioblastoma patient into one of three survival groups: short-term, mid-term, and long-term. To develop the prediction system, a medical dataset based on imaging information from magnetic resonance imaging (MRI) and non-imaging information is used. A …

Totally P-Adic Numbers Of Degree 4, Melissa Janet Ault

Theses and Dissertations

In this thesis, we extend results of Emerald Stacy to compute an upper bound on the minimal height of a totally p-adic algebraic integer of degree 4 independent of p. We also compute actual values of the minimal height of a totally p-adic algebraic integer of degree 4 for small primes p.

Spring Regrowth And Steer Performance On Tifton 85 And Coastal Bermudagrass Pastures Following Sod-Seeding With Ryegrass, G. M. Hill, R. N. Gates

IGC Proceedings (1993-2023)

Effects of autumn sod-seeded ryegrass (Lolium multiflorum; cv. Passerel; 37.7 kg/ha) in bermudagrass pastures (Cynodon spp.; cv. Coastal and cv. Tifton 85) on grazing steer performance were determined. Ryegrass was sod-seeded in three of six .81 ha pastures of each bermudagrass. Forage height was adjusted to10 cm during spring. Stocking rates were unaffected by ryegrass in Tifton 85 pastures, but they were higher (P < .05) for Tifton 85 than Coastal. Ryegrass increased tester steer average daily gains by 34% (.86 vs .64 kg/day; P < .01), and gain/ha by 26% (387 vs 306 kg/ha; P < .05). Higher stocking rates resulted in 22% more grazing days (515 vs 421 days/ha; P < .01), and 30% higher gain/ha (391 vs 301 kg/ha; P < .05) for Tifton 85 than Coastal pastures. Ryegrass did not affect stocking rates or steer performance on Tifton 85, but it depressed both on Coastal pastures.

Intensive Grazing Systems For Beef Cattle Production, F. P. Fontenot, V. G. Allen, M. A. Cochran, N. B. Frank

IGC Proceedings (1993-2023)

The objective of this study was to compare grazing systems that used rotational and continuous stocking for beef cows-calves and stocker cattle grazing fescue (Festuca arundinacea) and clover (Trifolium repens). For each system seven cows/calves and seven stocker steers were used within each of two replicates. The cows and stockers grazed stockpiled forage and were fed hay in winter, and grazed growing forage during spring and summer. Cows in the rotational system gained at a faster rate (P< . 05) from October to April than those in the continuous system. Daily gains of calves were higher (P< . 05) for the continuous system. Rate of gain during the last 28 days was higher (P< . 05) for the stockers in the rotational system. Average hay yields were not different for the two stocking systems, but more (P< . 05) hay was fed to the cattle in the continuous system. The system that used continuous stocking was more easily managed and required less labor and facilities.

Q-Analogue Modified Laguerre And Generalized Laguerre Polynomials Of Two Variables, Fadhle Bin Fadhle Mohsen, Fadhl Saleh .Alsarahi

Hadhramout University Journal of Natural & Applied Sciences

The 𝑞-Laguerre polynomials are important 𝑞-orthogonal polynomials whose applications and generalizations arise in many applications such as quantumgroup (oscillator algebra, etc.), 𝑞-harmonic oscillator and coding theory. In this paper, we introduce the q-analogue modified Laguerre and generalized modified Laguerre polynomials of two variables . Some recurrence relations for these polynomials are derived.

A Numeric Study On The Influence Of The Values Of The Parameter P In Kronig – Peneny Equation On The Width Of The Bands, Saleh Saeed Barbaid

Hadhramout University Journal of Natural & Applied Sciences

After showing the importance of Bloch Theory about Schrödinger' equation solution with a periodic potential; we demonstrated that the periodic structure of square well in one dimension of the model of Kronig-Penney on the band theory of solid, shows clearly the structure of the allowed and forbidden bands in the crystallized solids and we showed how we can introduce the parameter p in the final equation of this model of bands. Then, we conducted a sufficient study on the influence of this parameter on the widths of the allowed and forbidden energy bands in the crystals. We find that the …

Thermodynamic And Kinetic Of Eriochrome Black-T Adsorption Onto Yemeni Palm-Date Stones, Abdulrahman Yousef Wahoud, Sawsan Awadh Almaqdi

Hadhramout University Journal of Natural & Applied Sciences

Removal of eriochrome black-T (EB-T) dye from aqueous solutions was performed by adsorption onto Yemeni palmdate stones. The adsorption isotherm was found to follow the Langmuir model. Two simplified kinetic models including pseudo-first order and pseudo-second order equation were selected to follow the adsorption processes. Kinetic studies showed that the adsorption followed pseudo-first order kinetic model. Various thermodynamic parameters such as Δ𝐻 = -3465.3 J/mole and Δ𝑆 = -10.1 J/K/mole. Δ𝐺 was found to be -4495.5, -2195.2, -2235.7 and -45.39 J/mole at 298, 318, 328 and 338 K respectively, the maximum adsorption capacity was equal to 142 mg/g. The results …

Effect Of Calcium Carbonate, Ph, Mud And Organic Carbon On Soil Phosphate Sedimentation For Some Farms In Wadi Hadramout, Abdul Aziz Salem Dayan

Hadhramout University Journal of Natural & Applied Sciences

This study was conducted to determine the effect of calcium carbonate, pH, the amount of clay on phosphate adsorption, and the effect of early fertilization of phosphatic fertilizer on the amount of fertilizer. Three samples of surface soil (0-30 cm) were obtained from Al-Mashhad (Cotton) and (Sweiri) farms, Hadramout governorate, which differ in their content for: Total calcium carbonate ratio. The amount of clay in its mechanical analysis. Organic carbon.pH (pH).The samples were incubated at room temperature (24-28° C) and at varying concentrations of Monocalsumphosphate. The correlation coefficient was used to find the statistical relationship between the adsorption and release …

Pd Doped Sno2 Resistive Film As A Non-Enzymatic Glucose Sensor, Salim F. Bamsaoud, Sandhya Rani, R. N. Karekar Prof., S. W. Gosavi

Hadhramout University Journal of Natural & Applied Sciences

A new sugar sensor based on metal oxide is presented here. The variation on the sensor resistance is studied against different glucose and fructose concentrations (1 - 360 mg/dl). The study is done for three different resistive films (i) pristine palladium oxide (PdOx); (ii) tin oxide (SnO2) and (iii) palladium doped tin oxide (Pd-SnO2). The chemical reactions of glucose and fructose with surface species were studied. Pd-SnO2 films show an excellent and reliable response to glucose and fructose solution in comparison with the bare films (PdOx and SnO2). Sensor performance was checked for the blood of normal (120 mg/d) and …

A Chebyshev Spectral Collocation Method For Solving Kdv-Burgers Equation, Mubarak Awadh Assabaai

Hadhramout University Journal of Natural & Applied Sciences

A mixed spectral/ Runge-Kutta method is used to obtain numerical solutions of Kortewege–de Vries–Burgers’ (KdVB) equation. The suggested method based on Chebyshev spectral collocation is used with Runge-Kutta method of order four. This technique is accomplished by starting with a Chebyshev approximation for the higher order derivatives in the x -direction and generating approximations to the lower derivatives through successive integrations of the highest-order derivative. The proposed technique reduces the problem to a system of ordinary differential equations in the t -direction. The Runge-Kutta method of order four is used to solve this system. Excellent numerical results have been obtained …

Some Optical Properties Of (Znte) Thin Films Prepared By Thermal Evaporation Technique On A Glass Substrate, Abdulla Saeed Ba-Sabiah, Mohamed Ali Seyam

Hadhramout University Journal of Natural & Applied Sciences

Thin films of Zinc telluride (ZnTe)were deposited by thermal evaporation technique on a glass substrate. The optical obtained data were analyzed using a numerical analysis program which showed that the transition mechanism involved indirectly allows transition since the best line dependence is obtained from a plot of 0.5 ( )  h versus photon energy ( ) h . The bandgap decreased from 1.15 to 0.96 eV as the substrate temperature varied from 410 to 510 K. Such behaviour is attributed to unsaturated defects, which are confirmed by XRD examinations. PACS:78.20.Ci, 71.30.+h, 72.90. +y

Assessment Of Heavy Metal Pollution In The Seawater Of Hadhramout Coastal Area, Yemen, Nabil Abdo Al-Shwaf, Mohammed Abdulla Al-Wosabi, Hisham Mohammed Nagi, Nada Sheikh Mol-Aldwila

Hadhramout University Journal of Natural & Applied Sciences

Hadhramout is considered as the industrial and commercial center for fishing in Yemen. Accordingly, Yemen food security depends highly on maritime products of Hadhramout. Consequently, any severe contamination caused by industrial activities would have direct or indirect negative impact on the sea life and marine environment. Seawater samples were collected from Hadhramout Governorate coastal area Yemen. Five sampling locations were selected to conduct the present study. The samples were taken on a seasonal basis from Augusts of 2013 until May 2014. Twenty seawater samples were collected from the five areas (Ras sharma, Burum, AL-Mukalla, AL-Sheher and Arryidah) at Hadhramout coastal …

Quantification Of Mineral Reactivity Using Machine Learning Interpretation Of Micro-Xrf Data, Julie J. Kim, Florence Ling, Dan A. Plattenberger, Andres F. Clarens, Catherine A. Peters

Environmental Science Faculty Work

Accurate characterizations of mineral reactivity require mapping of spatial heterogeneity, and quantifications of mineral abundances, elemental content, and mineral accessibility. Reactive transport models require such information at the grain-scale to accurately simulate coupled processes of mineral reactions, aqueous solution speciation, and mass transport. In this work, millimeter-scale mineral maps are generated using a neural network approach for 2D mineral mapping based on synchrotron micro x-ray fluorescence (μXRF) data. The approach is called Synchrotron-based Machine learning Approach for RasTer (SMART) mapping, which reads μXRF scans and provides mineral maps of the same size and resolution. The SMART mineral classifier is trained …

Computer Program Simulation Of A Quantum Turing Machine With Circuit Model, Shixin Wu

Mathematical Sciences Technical Reports (MSTR)

Molina and Watrous present a variation of the method to simulate a quantum Turing machine employed in Yao’s 1995 publication “Quantum Circuit Complexity”. We use a computer program to implement their method with linear algebra and an additional unitary operator defined to complete the details. Their method is verified to be correct on a quantum Turing machine.

Fungal Community And Functional Responses To Soil Warming Are Greater Than For Soil Nitrogen Enrichment, Mark A. Anthony, Melissa A. Knorr, Jessica A. M. Moore, M. Simpson, Serita D. Frey

Faculty Publications

Soil fungi are key regulators of forest carbon cycling and their responses to global change have effects that ripple throughout ecosystems. Global changes are expected to push many fungi beyond their environmental niches, but there are relatively few studies involving multiple, simultaneous global change factors. Here, we studied soil fungal diversity, community composition, co-occurrence patterns, and decomposition gene responses to 10 years of soil warming and nitrogen addition, alone and in combination. We specifically examined whether there were fungal community characteristics that could explain changes in soil carbon storage and organic matter chemistry in chronically warmed and fertilized soil. We …

Hyperseed: An End-To-End Method To Process Hyperspectral Images Of Seeds, Tian Gao, Anil Kumar Nalini Chandran, Puneet Paul, Harkamal Walia, Hongfeng Yu

School of Computing: Faculty Publications

High-throughput, nondestructive, and precise measurement of seeds is critical for the evaluation of seed quality and the improvement of agricultural productions. To this end, we have developed a novel end-to-end platform named HyperSeed to provide hyperspectral information for seeds. As a test case, the hyperspectral images of rice seeds are obtained from a high-performance line-scan image spectrograph covering the spectral range from 600 to 1700 nm. The acquired images are processed via a graphical user interface (GUI)-based open-source software for background removal and seed segmentation. The output is generated in the form of a hyperspectral cube and curve for each …

2021 Fall Engr333 Project Section B Final Report, Calvin University 2021 Engr333 Section B

ENGR 333

In 2020, residences used 16.5% of all final energy in the United States, and residences were responsible for 19.3% of all U.S. CO2 emissions. Calvin ENGR 333 students partnered with Habitat for Humanity to tackle the issue of carbon emissions when designing their homes. Habitat for Humanity for Kent County is endeavoring to design homes that reduce energy consumption, energy expenditures, and carbon emissions. They are embarking upon a “carbon footprint build” that will minimize energy consumption and carbon emissions, both during construction and across the lifetime of their new Habitat for Humanity homes. This semester, the senior mechanical engineering …

2021 Fall Engr333 Project Section A Final Report, Gerald Darkey, Jonathan Jansma, Chris Singh, Ryan Whitney, Adam Brunsting, Adam Tjoelker, Jack Van Der Molen, Cornelius Van Liere, Derrick Bittner, William Terpstra, Matthew Winkle, Kelsey Yen, Kasen Anderson, Jack Cahalane, Samantha Krupa, James Kulaga, Chukwudubem Nweke, Nathan Holwerda, Jacob Meulink, John Stehouwer, Isaac Spackman, Moses Yang

ENGR 333

Habitat for Humanity (HFH) requested a carbon footprint analysis of their most recent home build. Mark Ogland-Hand, a representative of HFH, connected with Professor Heun’s ENGR 333 students to perform the carbon footprint analysis on their new low carbon house. Assuming Consumer’s Energy will incorporate their predicted percentage of renewables into their electric grid, the London home reduces projected carbon emissions by 18% when compared to a “To Code” house over a 25 year lifespan. For the current Consumer’s Energy grid, the “Improved” London house is shown to reduce projected carbon emissions by 30% when compared to the current London …

Quantum Mechanics-Based Computational Chemistry Has Become A Powerful Partner In The Scientific Research Of Nitrogen-Rich Compounds, Paving The Way For Important Advances In Biochemical, Pharmacological And Other Related Fields, Dobrushe Denburg

Student Theses and Dissertations

The Computational Chemistry of Nitrogen-Rich Compounds; Insight into Pioneering Research

Nitrogen-rich functional groups have long been studied for their diversity; nitrogen can form single, double and triple bonds with itself, and will therefore exist in a very broad range of molecular arrangements. Poly-nitrogen compounds are highly energetic and electron rich, and many compounds display unique properties that allow participation in very specialized chemical reactions. Of import is their ubiquity in biological systems, and throughout the past century and currently, their biological relevance is deeply and widely explored in biochemistry and biomedicine, from their involvement in natural biological processes and complex …

Final Butte Priority Soils Operable Unit Community Engagement Plan For Remedial Work, Josh Bryson, Eric Hassler

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Approved Final Butte Priority Soils Operable Unit Community Engagement Plan For Remedial Work, Josh Bryson, Eric Hassler

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Changing Impacts Of Alaska-Aleutian Subduction Zone Tsunamis In California Under Future Sea-Level Rise, Tina Dura, Andra J. Garner, Robert Weiss, Robert E. Kopp, Simon E. Engelhart, Robert C. Witter, Richard W. Briggs, Charles S. Mueller, Alan R. Nelson, Benjamin P. Horton

School of Earth & Environment Departmental Research

The amplification of coastal hazards such as distant-source tsunamis under future relative sea-level rise (RSLR) is poorly constrained. In southern California, the Alaska-Aleutian subduction zone has been identified as an earthquake source region of particular concern for a worst-case scenario distant-source tsunami. Here, we explore how RSLR over the next century will influence future maximum nearshore tsunami heights (MNTH) at the Ports of Los Angeles and Long Beach. Earthquake and tsunami modeling combined with local probabilistic RSLR projections show the increased potential for more frequent, relatively low magnitude earthquakes to produce distant-source tsunamis that exceed historically observed MNTH. By 2100, …

Hyperseed: An End-To-End Method To Process Hyperspectral Images Of Seeds, Tian Gao, Anil Kumar Nalini Chandran, Puneet Paul, Harkamal Walia, Hongfeng Yu

School of Computing: Faculty Publications

High-throughput, nondestructive, and precise measurement of seeds is critical for the evaluation of seed quality and the improvement of agricultural productions. To this end, we have developed a novel end-to-end platform named HyperSeed to provide hyperspectral information for seeds. As a test case, the hyperspectral images of rice seeds are obtained from a high-performance line-scan image spectrograph covering the spectral range from 600 to 1700 nm. The acquired images are processed via a graphical user interface (GUI)-based open-source software for background removal and seed segmentation. The output is generated in the form of a hyperspectral cube and curve for each …

Intake Estimation Of Rams Under Grazing Condition In A Deferred Pastures Of Panicum Coloratum By Two Techniques, C. M. Ferri, M. A. Brizuela, N. P. Stritzler, H. J. Petruzzi

IGC Proceedings (1993-2023)

The goal of this study was to quantify the organic matter intake (OMI) of Pampinta rams grazing in a Panicum coloratum cv Verde differed pasture. The OMI was compared by two methods: a) the difference between the forage measured in pre and post-grazing condition, and b) the faecal production:digestibility ratio of the diet, estimated by total faecal gathering, and from the quantity of total faecal N in g per 100 g^-1 of OMI and the concentration of total faecal N, respectively. The OMI estimated by difference between the forage measured in pre and post-grazing was 9 % higher (P …