Physical Sciences and Mathematics Commons^™

Rice Biomass Response To Various Phosphorus Fertilizers In A Phosphorus-Deficient Soil Under Simulated Furrow-Irrigation, Jonathan B. Brye

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

Wastewater-recovered phosphorus (P), in the form of the mineral struvite (MgNH4PO4⋅6H2O), may provide a sustainable alternative to rapidly decreasing rock phosphate reserves. Struvite can be generated via chemical and/or electrochemical precipitation methods, potentially reducing the amount of P runoff to aquatic ecosystems. The objective of this greenhouse tub study was to evaluate the effects of chemically- and electrochemically precipitated struvite (CPST and ECST, respectively) on above- and belowground plant response in a hybrid rice cultivar (Gemini 214, RiceTec) grown using furrow-irrigation compared to other common fertilizer-P sources [i.e., triple super phosphate (TSP) and diammonium phosphate (DAP)] in a P-deficient silt …

Atmospheric Deposition Trends Are Primarily Decreasing In Arkansas And Tennessee, Anna Mccarty

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

Atmospheric deposition has likely changed with the influence of increasing global temperatures and subsequent changes in precipitation across the United States and globally. The objective of this project was to analyze atmospheric deposition across northern Arkansas and Tennessee. The three specific objectives were to: i) evaluate trends in atmospheric deposition of various element/compounds, ii) assess the relationship between atmospheric deposition and rainfall, and iii) evaluate if rainfall-adjusted atmospheric deposition is changing over time. Six sites were analyzed from 1980 to 2022, including AR16, AR27, TN00, TN04, TN11, and TN14, which span over northern Arkansas and across Tennessee. The Mann-Kendall Test …

Using Empathy To Shift Climate Change Attitudes., Carson Haller

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

It has shifted from a hunch to an existential threat, it is a harbinger of disaster and bankruptcy, backed by science, and yet a considerable portion of Americans still believe that climate change is a hoax. It is becoming increasingly imperative to convince this portion to join the fight. It has been found that empathy is an effective method of persuasion, prompting the question of whether empathy could be used shift climate change attitudes. The hypothesis of this study was that if a person feels empathy for somebody harmed by the effects of climate change, they will be more willing …

A Copper-Selective Sensor And Its Inhibition Of Copper-Amyloid Beta Aggregation, Ngoc Kim Nguyen, Bella Poduska, Mia Franks, Manoranjan Bera, Ian Maccormack, Guoxing Lin, Alexander P. Petroff, Samir Das, Arundhati Nag

Chemistry

Copper is an essential trace metal for biological processes in humans and animals. A low level of copper detection at physiological pH using fluorescent probes is very important for in vitro applications, such as the detection of copper in water or urine, and in vivo applications, such as tracking the dynamic copper concentrations inside cells. Copper homeostasis is disrupted in neurological diseases like Alzheimer’s disease, and copper forms aggregates with amyloid beta (Ab42) peptide, resulting in senile plaques in Alzheimer’s brains. Therefore, a selective copper detector probe that can detect amyloid beta peptide-copper aggregates and decrease the aggregate size has …

Optimization Of Xrf Experimental Protocol For Bruker Picofox, Tyler Ashcraft

Undergraduate Honors Theses

The research performed was to improve the precision and accuracy of sample measurements made with the Bruker Picofox X-ray fluorescence spectrometer. The initial method of sample preparation using a 10 μL drop spotted onto an acrylic plate and then drying in an oven at 80˚C produced inconsistent results even when processing replicates or the same sample multiples times. Multiple experiments were conducted to determine the effects of different sample preparation conditions on the resulting accuracy. The conditions tested were drop size, plate composition, and drying temperature. For each experiment an internal standard (gallium) was used at concentrations similar to that …

Relationship Between Marine Heatwaves And Diadema Antillarum Settlement In The Florida Keys, David Ogando Jr.

Theses, Dissertations and Culminating Projects

Ocean warming can have profound impacts on benthic marine invertebrates through direct physiological effects. Yet, the impacts of ocean warming on the long-spined sea urchin (Diadema antillarum), a keystone grazer on western Atlantic and Caribbean coral reefs, has received little attention. In the summer of 2023, the Caribbean basin experienced a strong marine heatwave event with sea temperatures ~1–3°C above average and the warmest on record in southern Florida. An ongoing field settlement sampling program for D. antillarum in the Florida Keys provided an opportunity to examine the correlative relationship between thermal exposure and larval settlement. Thermal exposure was quantified …

Holistic Audio-Visual Cough Data Analysis For Tb Detection, Jyoti Yadav

Theses, Dissertations and Culminating Projects

This thesis explores a novel approach for early tuberculosis (TB) detection leveraging the rich information within medical big data. We move beyond the traditional reliance on self-reported cough duration and propose a holistic strategy that uses audio data from cough recordings. This comprehensive analysis reveals the influence of factors beyond cough, such as heart rate, in differentiating TB cases. We investigate two primary audio processing methods for TB classification using deep learning models: Mel-spectrograms and Mel-Frequency Cepstral Coefficients (MFCCs). Mel-spectrogram analysis, followed by deep learning models, achieved promising results, but a simpler approach yielded superior performance. Notably, a simple 1D …

Water Justice And Equity: The Disproportionate Effects Of Pollution On Black, Indigenous, And Other Communities Of Color, Rae Cade

Theses, Dissertations and Culminating Projects

Access to clean drinking water is a basic human right, regardless of an individual’s background. Yet, discriminatory practices in the United States have disproportionately burdened Black, Indigenous, and other people of color (BIPOC) with contaminated sources of water. Understanding how and why water is disproportionately contaminated in areas with increased diversity, and identifying and targeting areas of environmental injustice, are essential steps for ensuring future water equity. Here, I examine the drivers of inequitable access to clean drinking water within the northeastern United States. In chapter one, I look at the historical drivers of land inequity within the United States. …

The Influence Of Edaphic Factors On The Growth And Competitiveness Of Loosestrife (Lythrum Spp.), Martha Mahady

Theses, Dissertations and Culminating Projects

Wetlands are important areas in the landscape, providing important ecosystem services. Purple loosestrife (Lythrum salicaria), native to Europe and Asia, invades wetlands in North America, outcompeting native wetland plants and disrupting ecosystem services. While purple loosestrife is invasive in North America, it is not in its native range. Winged loosestrife (Lythrum alatum), a North American native congener, is not invasive in North America. Purple loosestrife from Sussex County, N.J. U.S.A. and purple loosestrife from the United Kingdom, and winged loosestrife were compared in this study. Their response to soil edaphic factors, such as seed vernalization, soil nutrients, soil pH, water, …

The Nature Of Undergraduate Calculus I Students' Participation In The Parallel Spaces Of Coursework And Peer-Led, Cooperative, Inquiry-Oriented Complementary Instruction, Karmen T. Yu

Theses, Dissertations and Culminating Projects

Calculus has long been known as a “gateway course” to STEM fields in postsecondary education. To moderate this gatekeeping effect, Montclair State University researchers developed a peer-led, inquiry-based instructional support (IBIS) to run parallel to Calculus classes. The design of the IBIS model was informed by an instructional approach called Complex Instruction (CI) and two other peer-led, cooperative learning models, Peer-Led Team Learning (PLTL) and Supplemental Instruction (SI). While the literature on peer-led models of cooperative learning confirms their effectiveness on undergraduate students’ academic outcomes in mathematics, this multiple-case study set out to address the following: What is the nature …

A Global Analysis Of Carbon And Nitrogen Stocks In Natural And Anthropogenic Soils, Shih-Chieh Chien

Theses, Dissertations and Culminating Projects

In terrestrial biomes, soils possess the highest amount of carbon and nitrogen stocks that regulate biogeochemical processes and provide ecosystem services. The amount of carbon and nitrogen stored in soils, as a balance of nutrient influxes and outfluxes, is controlled by various environmental and soil factors, while at the same time soil carbon and nitrogen stocks can be subject to anthropogenic impacts, like nutrient storage in urban soils. To inform a better, general understanding of carbon and nitrogen distribution in urban soils, the present dissertation gathers four articles (from Chapters 2 to 5, respectively) addressing different aspects of the issue, …

Stock Market Predictions With Machine Learning ., Daniel Bezerra Martellini

ICT

The focus of this project is developing a tool that can be used in conjunction with other methods to help an investor and/or financial analyst in making an informed decision when making an investment choice taking into consideration stock data.

The project has three main goals which are to try predicting buy and sell signals with the use of a classification model, and to predict the approximate value for next day’s closing price of a stock of our choice with the use of a regression model.

My last goal with this project is to create models easy to use and …

A Multi-Century Reconstruction Of Sea Surface Temperature, Salinity, And Density From A Northern Red Sea Coral., Daliza Nanette Rivera-Matos

Legacy Theses & Dissertations (2009 - 2024)

The Red Sea Outflow Water (RSOW), an intermediate water mass formed in the northern Red Sea, is a primary Red Sea water circulation process. Understanding these water circulation processes gives us an insight into this region's climate dynamics. The intermediate water formation is one of the main processes of the water circulation in the northern Red Sea and feeds the Indian Ocean with saltier and colder water. Despite understanding the RSWO's association with the North Atlantic Oscillation (NAO), its historical response to this climate mode remains unclear. There has not been a long-term record to analyze the relationship between the …

Determining The Time Since Deposition Of Bloodstains Based On Vibrational Spectroscopy For Forensic Purposes, Alexis Renee Weber

Legacy Theses & Dissertations (2009 - 2024)

At the scene of violent crimes, bloodstain evidence is one of the most frequently found and valuable types of evidence. Blood traces discovered at crime scenes can provide crucial information to an investigation. By obtaining a DNA profile from the bloodstain, the profile can be used to link someone to a crime scene, which can corroborate or dispute a witness's statement. However, the current analysis of bloodstains is still not able to answer a key question for investigators: how much time has passed since the criminal event occurred? In addition, an equally important aspect of crime reconstruction is the ability …

The Potential For Enhancing Tumour Detection In Medical Imaging With Coherent Scatter, Aastha Boora

Legacy Theses & Dissertations (2009 - 2024)

A number of medical disorders may only be diagnosed with the use of medical imaging, and X-rays are commonly used to detect fractures, abnormal masses, and cavities. The penetration power of X-rays enables them to effectively see these structures inside the body. However, since background structures like fat or fibrous glandular tissue have similar absorption coefficients, X-ray radiography often face challenges when imaging soft tissues for cancer/tumour diagnosis. Research has shown the theoretical potential for X-ray phase imaging to increase contrast factors by a factor of 100 or more, which theoretically could result in enhanced visualization of tumours. In addition …

The Characteristic Polynomial And Its Applications, Kate Helen Auguste Howell

Legacy Theses & Dissertations (2009 - 2024)

This dissertation examines some applications of the characteristic polynomial \[Q_A(z):=\det (z_0I+z_1A_1+\cdots+z_nA_n),\] where $A_0,\dots,A_n$ are complex square matrices and $(z_0,\dots,z_n)\in\mathbb{C}^{n+1}$. In particular, it proves that a Coxeter system is completely determined by its characteristic polynomial with respect to the Tits representation and that the characteristic polynomial for pairs of projection matrices can be calculated using their orthogonal decomposition described by Halmos~\cite{Hal}. A consequence of this calculation is that their characteristic polynomial is a complete unitary invariant for the pairs of projections, which may be alternatively proven by their trace. These results have been published in~\cite{HY}. The unitary equivalence of tuples of …

Understanding Variations And Trends In Convection Over The Congo Basin From A Diurnal Perspective, Kathrin Alber

Legacy Theses & Dissertations (2009 - 2024)

Tropical rainforests regulate global and regional climate systems and play a vital role in the world’s water and carbon cycles. The Congo Basin, situated in central equatorial Africa, is home to the second largest rainforest on the planet and is one of the most convective regions in the world. Recent studies indicate that a large-scale and long-term drying trend, characterized by an increase in dry season length, a decrease in forest greenness, and a decrease in precipitation, has been stressing the region since the 1980’s. Despite the alarming drying trend and the Congo’s important role in the planetary circulation and …

The Impact Of Wildfire Activities On Air Quality And Solar Energy In New York And California, Chin-An Lin

Legacy Theses & Dissertations (2009 - 2024)

An increasing trend of wildfire activity over North America over the past decades has been observed. Elevated surface fine mode particulate matter (PM2.5) concentration and reduction of solar radiation during the smoke episodes have been widely reported. Given that the intensity and frequency of wildfires are expected to increase under changing climate, the impact of smoke aerosols on air quality and solar energy could become more significant. This study aims to characterize the transport of smoke aerosols and quantify their impact on local air quality and solar energy over New York (NY) and California (CA) States. A multi-year analysis of …

Advancing Learning Models For High-Dimensional Data: From Molecular Modeling To Motion Planning, Tuan Nguyen Anh Tran

Legacy Theses & Dissertations (2009 - 2024)

Processing and analyzing high-dimensional data, particularly in domains like protein research and robotics, introduces unique challenges. In protein analysis, high-dimensional data often arises from complex molecular structures and their interactions. Analyzing protein data involves intricate computational models and algorithms that must deal with the large size of molecular datasets and the need to extract biologically relevant information. This makes it challenging to discern significant protein structure-activity relationships, understand complex biological interactions, or predict protein behavior accurately. Similarly, in robotics, high-dimensional data is prevalent when dealing with sensory inputs, the dimensionality of the robot, or the complexity of the operational environments. …

Square Functions For Ritt Operators In L1, Jennifer M. Hults

Legacy Theses & Dissertations (2009 - 2024)

Let Y be a Banach space. An operator T ∈ L(Y) is a Ritt operator providedsupn n∥Tn − Tn+1∥ < ∞. For Ritt operators T in Lp, where 1 < p < ∞, the square function (?n2m+1|Tn(I − T)m+1f|2)1/2 is bounded. We show that (?nα|Tn(I − nn T)lf|s)1/s is bounded in L1 for for l > 0 and sl > α+1 and (?nα|Tn(I−Tl)f|s)1/s is n 1 + ?n n+1s1/s boundedinL forl∈Z ands>α+1.Wealsoconsider( nl|T lf−T l f|) l where {nl} is an increasing sequence with increasing gaps. Finally, we investigate the related variational and oscillation norms.

Exploring Nucleic Acid Modifications For Rna-Based Therapeutics: Insights From Molecular Dynamics Simulations, Samantha Biaesch

Legacy Theses & Dissertations (2009 - 2024)

Nucleic acid modifications are pivotal in biological processes due to their multifaceted roles. They regulate gene expression by modulating transcription, with modifications in the nucleic acid, sugar group, or in its phosphate backbone. In our investigation, we explore the use of molecular dynamics simulations to study nucleic acid modifications for potential applications in RNA-based therapeutics. These modifications introduce nonstandard atoms, such as selenium, and new parameterizations must be performed to properly simulate in GROMACS. These parameters govern bonded (strength of bonds, angles and dihedrals) and non-bonded (size and charges) interactions for each of the atoms in the modification. The first …

Barrier Removal Prioritization To Increase Climate Resiliency And Aquatic Connectivity For Communities In The Upper Susquehanna Basin, Cassandra Mae Davis

Legacy Theses & Dissertations (2009 - 2024)

The streams and rivers of the Upper Susquehanna Basin have been heavily modified over centuries through deforestation of nearshore areas and creation of physical barriers, such as dams and culverts. Dams and undersized culverts negatively affect aquatic organisms by modifying habitat conditions and restricting movement of these organisms. In addition, improperly maintained dams and undersized culverts can intensify flooding impacts and negatively affect water quality. A standardized method is needed to determine which barriers should be prioritized for assessment and potential replacement or removal based on multiple ecosystem and societal factors. The goal of this analysis was to have a …

The Role Of Climate Feedbacks, Poleward Energy Transport, And Clouds In Causing Arctic Amplification And Their Link To Sea-Ice Loss, Matthew Todd Jenkins

Legacy Theses & Dissertations (2009 - 2024)

Arctic amplification (AA) refers to larger warming in the Northern high latitudes than the rest of the world under increased greenhouse gas (GHG) concentrations. Many processes have been suggested to influence AA such as sea-ice loss, positive climate feedbacks, enhanced downwelling longwave (LW) radiation from increased water vapor and cloud cover, or enhanced poleward energy transport. However, many of these processes are coupled with each other and with Arctic warming, making it difficult to separate and quantify their individual contributions to Arctic warming and AA. This dissertation focuses on the roles of sea-ice loss, climate feedbacks, cloud property changes, and …

Cultural And Environmental Change In A Period Of Westernized Tourism: Bali, Indonesia, Barbara Buck

ALL - Honors Theses

Dutch colonizers opened Bali for tourism at the beginning of the 20th century, and since that time tourism has led to changes in Bali’s culture, environment, and local resources. In the late 1900s, tourism grew to a new level, which resulted in a shift of industry control away from Balinese people. This project examines the problem of tourism from a social and environmental science lens. By compiling literature and science from various fields of study, this project aims to illustrate the complexity of Bali’s tourism problem in an interdisciplinary way. The lack of local control over tourism perpetuated and exacerbated …

Investigating User Awareness Of Privacy And Security Concerns In The Iot Era, Jack Ruffner

ALL - Honors Theses

The Internet of Things (IoT) has had a significant impact on the way we view and interact with technology. This is especially prevalent in the areas of smart homes, smart tech, and mobile devices. However, despite the advantageous functions of IoT devices, they are accompanied by numerous security concerns that enable several severe privacy concerns. Many studies and informative articles present ideas that explain and prove the presence of the various risks associated with IoT devices and the need to address them. This thesis paper aims to explore the relationship between IoT device usage and security and privacy risks as …

Evaluating And Enhancing The New York State Mesonet (Nysm) Snow Accumulation Estimation, Christopher Gilberti

ALL - Honors Theses

This research project aims to examine and enhance the performance of the New York State Mesonet (NYSM) Snow Accumulation Estimation. The NYSM is a state-of-the-art network of 126 standard weather stations located across the state of New York, collecting high-quality meteorological data to improve forecast accuracy, reduce uncertainty, and mitigate harm. All NYSM standard stations measure snow depth with Campbell Scientific’s SR50A ultrasonic distance sensor. This acoustic sensor measures the distance from the sensor to a rigid snowboard if there is no snow on the ground or the top of snow layer. A reference distance and a temperature correction are …

Categorizing The Societal Impacts From Extreme Rainfall In The New York City Metropolitan Area, Evan Belkin

ALL - Honors Theses

Numerous studies have shown that the frequency and intensity of extreme rainfall events have increased significantly across the contiguous United States (CONUS) over the past several decades associated with warming global temperatures. This surge in extreme rainfall has resulted in the loss of life and property within vulnerable communities due to widespread river and flash flooding. For example, 11 of the 14 fatalities in New York City associated with Tropical Cyclone Ida’s remnants in September 2021 occurred in flooded basement apartments. The creation of a scale to differentiate extreme rainfall events with higher societal impacts from those with lower impacts …

Argonaute 2 Binding Affinity To Determine Repression Of Mirna-Mrna Pairs, Christina M. S. Karadiakos

ALL - Honors Theses

MicroRNAs (miRNA) are a class of small non-coding RNAs that play a key role in gene silencing. miRNAs form an RNA-induced silencing complex (RISC) with the argonaute 2 (AGO2) protein in order to control gene expression through silencing messenger RNAs (mRNA). The ability for a miRNA-mRNA complex to fit into AGO2 and form the RISC is based on the location and characteristics of a central bulge, but the mechanism and interactions that lead to a functional RISC remain unknown. Using available experimental data, we modeled complexes composed of a miRNA (miR-34a) and different mRNA sequences inside of AGO2. The resulting …

Diurnal To Seasonal Hurricane Variability And Predictability, Jeremiah Otero Piersante

Legacy Theses & Dissertations (2009 - 2024)

Prediction of tropical cyclone (TC) impact extends across a range of forecast lead times. At shorter timescales, radially outward-propagating, diurnal pulses in TCs are associated with TC intensity and structure changes. At weekly periods, synoptic-scale Rossby waves influence the direction of TC tracks. At seasonal timescales, climate modes affect the overall (in)favorability of TC activity. The research shown in this dissertation seeks to improve the understanding and predictability of TC variability across these scales using numerical weather prediction, reanalysis fields, and storm track observations.Diurnal pulses associated with cloud-top cooling, so-called cooling pulses (CPs), pose a risk for hazardous weather because …

Examining The Performance Of The High-Resolution Rapid Refresh Model During Clear, Isolated, And Widespread Convective Days In The New York State Capital Region, Rachel A. Eldridge

Legacy Theses & Dissertations (2009 - 2024)

Forecasting can be more challenging in areas of complex terrain, such as in and around the valleys and mountains of Upstate New York. Biases in numerical weather prediction models, related to the lack of resolution of the terrain and errors in physical parameterizations, can affect forecasts. The main goal of this research is to assess biases in the High-Resolution Rapid Refresh (HRRR) model that could contribute to deficiencies in forecasts for days with and without convection. We investigate how the HRRR model performed in the New York Capital Region for 4 clear days, 4 isolated convective days, and 4 widespread …