Physical Sciences and Mathematics Commons^™

Cirrus Microphysical Properties And The Controlling Factors Using A Machine Learning Approach, Derek D. Ngo

Master's Theses

Cirrus clouds are located at high altitudes and are composed of ice crystals. The unique location of cirrus clouds and their large variability in-cloud microphysical properties allow them to have either warming or cooling effects on Earth’s surface and affect the Earth’s energy budget on a global scale. The examination of cirrus radiative effects is further complicated by multiple factors affecting their formation and evolution, including the effects of thermodynamic, dynamic, aerosol, and chemical tracer variables. In this work, we developed a composite aircraft-based in-situ observation dataset based on seven National Science Foundation (NSF) and five NASA flight campaigns that …

Cloud Phase Distribution At A Global-Scale And The Governing Factors Using Satellite And In-Situ Airborne Observations, Dao Wang

Master's Theses

Cloud thermodynamic phase distributions play a crucial role in accurately representing cloud radiative effects and feedback in a changing climate. The partitioning of cloud thermodynamic phases (ice, liquid, and mixed phase) significantly influences Earth's surface temperature and its ability to mitigate the impact of global warming. Satellite-based cloud phase data are frequently used for the evaluation of global climate models, yet validation of them against in-situ observations is still lacking. This study examines global cloud phase distributions and their determinant factors by validating three satellite-based cloud phase products against an extensive in-situ airborne dataset. CALIPSO exhibits the most similar ice …

The Potential And Limitations Of Conversational Agents For Chronic Conditions And Well-Being, Ekaterina Uetova, Lucy Hederman, Robert J. Ross, Dympna O'Sullivan

Articles

Conversational agents are becoming more common in the health and wellness domains in part due to assumptions regarding potential improvements in individuals’ outcomes. This paper presents initial findings from a review of conversational agent use in healthcare for chronic conditions and well-being. A search of the literature was performed on electronic databases PubMed, ACM Digital Library, Scopus and IEEE Xplore. Studies were included if they were focused on chronic disorder management, disease prevention or lifestyle change and if systems were tested on target user groups. This paper investigates the health domains, the user profiles and reasons why conversational agents may …

Analysis Of Laminar Flow Patterns In Milifluidic Devices, Brian Leger

Honors Theses

This research centers around a millifluidic device designed for the analysis of flowing chemical reactions that may happen too quickly to be analyzed by traditional spectroscopic methods. The device works by combining two simple concepts: fluid flows a certain distance over time and chemical reactions progress over time. Combining these allows for the correlation of reaction progress and distance through the device. Since the flow within the device is laminar, there is friction along the walls of the channel that creates a flow profile that elongates over time. The details of the flow were previously unknown but are necessary if …

Stochastic Optimization To Reduce Aircraft Taxi-In Time At Igia, New Delhi, Rajib Das, Saileswar Ghosh, Rajendra Desai, Pijus Kanti Bhuin, Stuti Agarwal

International Journal of Aviation, Aeronautics, and Aerospace

Since there is an uncertainty in the arrival times of flights, pre-scheduled allocation of runways and stands and the subsequent first-come-first-served treatment results in a sub-optimal allocation of runways and stands, this is the prime reason for the unusual delays in taxi-in times at IGIA, New Delhi.

We simulated the arrival pattern of aircraft and utilized stochastic optimization to arrive at the best runway-stands allocation for a day. Optimization is done using a GRG Non-Linear algorithm in the Frontline Systems Analytic Solver platform. We applied this model to eight representative scenarios of two different days. Our results show that without …

Explorations Of A Topology Constructed On The Maximal Ideals Of A Boolean Algebra, Abbigal Moos

Dissertations and Theses

The primary purpose of this thesis is to construct a topology on the collection of maximal ideals of a distributive and complemented lattice using the hull-kernel methodology. Through the construction of this topological space, we discovered that the space is compact, zero-dimensional, and Hausdorff. Next, we looked at the properties of some lattices, namely the power set of a finite set ordered by inclusion and the set of all positives divisors for some arbitrary integer ordered by divisibility. Whenever these lattices were both distributive and complemented, we constructed a topology on the collection of maximal ideals of the lattices using …

Deep Learning Approaches For Automatic Colorization, Super-Resolution, And Representation Of Volumetric Data, Sudarshan Devkota

Graduate Thesis and Dissertation 2023-2024

This dissertation includes a collection of studies that aim to improve the way we represent and visualize volume data. The advancement of medical imaging has revolutionized healthcare, providing crucial anatomical insights for accurate diagnosis and treatment planning. Our first study introduces an innovative technique to enhance the utility of medical images, transitioning from monochromatic scans to vivid 3D representations. It presents a framework for reference-based automatic color transfer, establishing deep semantic correspondences between a colored reference image and grayscale medical scans. This methodology extends to volumetric rendering, eliminating the need for manual intervention in parameter tuning. Next, it delves into …

A Systematic Review Of Cryptocurrencies Use In Cybercrimes, Kieran B D Human

Graduate Thesis and Dissertation 2023-2024

Cryptocurrencies are one of the most prominent applications of blockchain systems. While cryptocurrencies promise many features and advantages, such as decentralization, anonymity, and ease of access, those very features can be abused. For instance, as documented in various recent works, cryptocurrencies have been frequently abused in many different forms of cybercrime. Despite the plethora of works on measuring and understanding the abuse of cryptocurrencies in the digital space, there has been no work on systemizing this knowledge by comprehensively understanding those contributions, contrasting them based on their merit, and understanding the gap in this research space.

This thesis initiates the …

Optimizing Deep Neural Networks Performance: Efficient Techniques For Training And Inference, Ankit Sharma

Graduate Thesis and Dissertation 2023-2024

Recent advances in computer vision tasks are mainly due to the success of large deep neural networks. The current state-of-the-art models have high computational costs during inference and suffer from a high memory footprint. Therefore, deploying these large networks on edge devices remains a serious concern. Furthermore, training these over-parameterized networks is computationally expensive and requires a longer training time. Thus, there is a demand to develop techniques that can efficiently reduce training costs and also be able to deploy neural networks on mobile and embedded devices. This dissertation presents practices like designing a lightweight network architecture and increasing network …

Dna Capture And Translocation Through Nanopore, Swarnadeep Seth

Graduate Thesis and Dissertation 2023-2024

This thesis investigates DNA dynamics and translocation through nanopores using Brownian dynamics (BD) simulations, offering insights into sequencing technologies, DNA marker detection, and accurate barcoding utilizing solid-state nanopore platforms. First, we in silico study the intricate process of capture and translocation in a single nanopore. Our simulation reveals a high probability of hairpin loop formation during the capture process. However, attaching a charged tag to one end of DNA improves multi-scan rates and enhances unidirectional translocations. We use modulating voltage biases to multi-scan a lambda-phage dsDNA with oligonucleotide flap markers (tags) through a single and double nanopore system. Our study …

Evaluating Gizzard Shad Dorosoma Cepedianum And Threadfin Shad D. Petenense Populations In Two Kentucky Reservoirs Recently Invaded With Silver Carp Hypophthalmichthys Molitrix, Nathan Klein

Murray State Theses and Dissertations

Gizzard Shad Dorosoma cepedianum and Threadfin Shad D. petenense are ecologically important fish species found in many reservoirs throughout the southeastern United States, such as Kentucky Lake and Lake Barkley. One current challenge that Gizzard Shad and Threadfin Shad may face in these two reservoirs is competition with the invasive Silver Carp Hypophthalmichthys molitrix. However, quantifying the effects of this competition may be difficult because of limited baseline population data for Gizzard Shad and Threadfin Shad in these two reservoirs. Gizzard Shad and Threadfin Shad were collected by boat electrofishing and surface trawling in cove and main channel locations …

Local Or Import? A Compositional Analysis Of Aztec Ritual Ceramics In The Tuxtlas Frontier, Veracruz, Mexico, Matthew T. Meyer

Murray State Theses and Dissertations

At the time of Spanish Contact in the early 16th Century the western Tuxtlas region formed part of the Aztec imperial frontier in the southern Gulf lowlands. The most apparent material manifestation of this imperial connection was Aztec-style Texcoco-Molded Censers, recovered primarily from sites that served local centralizing functions. While rare, these symbols may provide valuable information on the dynamics of frontier politics and the relations between this region and the distant core to which they were sending tax payments. Initial consideration of this adopted imperial style implies political linkages, but the mechanisms of introduction, knowledge transmission, imperial versus local …

Bayesian Structural Time Series Methods For Modeling Cattle Body Temperature In Heat-Stressed Animals, Lacey Quandt

Murray State Theses and Dissertations

Climate change has had devastating effects globally, most commonly talked about during natural disasters and rising temperatures. Notably, the climate concern is turning towards agriculture and livestock. With rising temperatures, the prolonged amount of heat stress put on animals, specifically cattle, is becoming more apparent. Heat stress has been linked to a reduction in cattle growing and fattening, feed intake, productivity, reproduction, and fertility; increased heart rates and respiration; changes in behavior; and mortality in severe cases. There are abatement strategies put in place to lower heat stress in cattle, such as improvements in shading and cooling, nutritional management, and …

Temporal Neural Team Formation With Negative Sampling, Seyed Sobhan Dashti

Electronic Theses and Dissertations

Predicting future successful teams of experts who can synergistically work in concert with each other and en masse cover a set of required skills of a degree necessary for the achievement of the desired outcome is challenging due to several reasons, including 1) the magnitude of the pool of plausible expert candidates with diverse backgrounds and skills, and 2) the drift and variability of collaborative ties of experts and their level of expertise in each area in time. Prior works in team formation have neglected the fact that experts’ skill, interests, and collaborative ties change over time. We can categorize …

Biallelic Mutations In P4htm Cause Syndromic Obesity, Sadia Saeed, Lijiao Ning, Alaa Badreddine, Muhammad Usman Mirza, Mathilde Boissel, Roohia Khanam, Jaida Manzoor, Qasim M. Janjua, Waqas I. Khan, Bénédicte Toussaint, Emmanuel Vaillant, Souhila Amanzougarene, Mehdi Derhourhi, John F. Trant, Anna-Maria Siegert, Brian Y.H. Lam, Giles S.H. Yeo, Layachi Chabraoui, Asmae Touzani, Abhishek Kulkarni, I. Sadaf Farooqi, Amélie Bonnefond, Muhammad Arslan, Philippe Froguel

Chemistry and Biochemistry Publications

We previously demonstrated that 50% of children with obesity from consanguineous families from Pakistan carry pathogenic variants in known monogenic obesity genes. Here, we have discovered a novel monogenetic recessive form of severe childhood obesity using an in-house computational staged approach. The analysis included whole-exome sequencing data of 366 children with severe obesity, 1,000 individuals of the Pakistan Risk of Myocardial Infarction Study (PROMIS) study, and 200,000 participants of the UK Biobank to prioritize genes harboring rare homozygous variants with putative effect on human obesity. We identified five rare or novel homozygous missense mutations predicted deleterious in five consanguineous families …

A New Look At The Origin Of N-S Trending Young Basins Of Western Anatolia, Ömer Feyzi Gürer

Bulletin of the Mineral Research and Exploration

In the western Anatolia, the tectonic regime transitioned from crustal shortening to extension during Late Cenozoic time and evidence of this event was imprinted on basement lithologies and N-S and E-W oriented two distinct basin sub-types. Here, we examined the exhumation mechanism of the Menderes massif that forms the basement of these basins from a different perspective. The N-S oriented basins overlying different basement rock types were re-evaluated based on new evidence that has potential to put new constrains for interpreting the tectonic evolution of the area. Unroofing of the Menderes Massif must have developed due to compressional core complex. …

Evaporate Salt Exploration By Two Dimensional (2d) Seismic Reflection Method: Ankara- Polatlı Region, Türkiye, Recep Güney, Zeynep Rezzan Özerk, Erdener Izladi, Salih Erden, Esra Ak, Erdi Apatay, Erdoğan Eryilmaz, Batuğhan Yikmaz, Sami Aytaç Özdemi̇r, Sermet Gündüz, Tuğçe Can, İmam Çeli̇k, Abdullah Gürer, Sinem Aykaç, Muzaffer Özgü Arisoy, Esra Burcu Köse, Büşra Bihter Demi̇rci̇

Bulletin of the Mineral Research and Exploration

The presence of the evaporate salt zone in Ankara-Polatlı region has been determined by the drillings. It is thought to be the largest reserve in Türkiye. The seismic reflection method was used to determine the top-bottom levels of the zone; its depth; its thickness and extent boundaries; the horstgraben structures; base depth and tectonic movements affecting the study area. Data were collected on three seismic lines. The near-surface tomographic velocity sections were compatible with the top-of-the-zone depth observed in the drillings. As a result of the study, the depth and thickness of the top-bottom of the zone were determined along …

Just Transition Litigation In Latin America: An Initial Categorization Of Climate Litigation Cases Amid The Energy Transition, Maria Antonia Tigre, Lorena Zenteno, Marlies Hesselman, Natalia Urzola, Pedro Cisterna-Gaete, Riccardo Luporini

Sabin Center for Climate Change Law

Just transition litigation is a novel field representing a sub-set of climate change litigation cases that is under-researched and studied. The report provides a novel comparative analysis of legal developments found in 20 just transition litigation cases in four Latin American countries and questions whether initiatives for achieving energy transformation in the region may have erred in failing to consider key just transition principles or dimensions, leading applicants to bring legal cases to claim their rights or demand more just solutions. The cases found – limited to the energy sector – not only question decarbonization policies or projects (in typical …

Accelerating A Software Defined Satnav Receiver Using Multiple Parallel Processing Schemes, Logan Reich, Sanjeev Gunawardena, Michael Braasch

Faculty Publications

Excerpt: Satnav SDRs present many benefits in terms of flexibility and configurability. However, due to the high bandwidth signals involved in satnav SDR processing, the software must be highly optimized for the host platform in order to achieve acceptable runtimes. Modules such as sample decoding, carrier replica generation, carrier wipeoff, and correlation are computationally intensive components that benefit from accelerations.

Atmospheric Meteorological Effects On Forecasting Daily Lightning Occurrence At Cape Canaveral Space Force Station, Jon Saul [*], Torrey J. Wagner, Eric G. Mbonimpa, Brent T. Langhals

Faculty Publications

As the Cape Canaveral Space Force Station and Kennedy Space Center increase their launch rate, any process that could assist in the automation of the currently-manual lightning forecast would be valuable. This work examines the possibility of machine-learning assistance with the daily lighting forecast which is produced by the 45th Weather Squadron. A dataset consisting of 34 lightning, pressure, temperature and windspeed measurements taken from 334 daily weather balloon (rawinsonde) launches in the timeframe 2012-2021 was examined. Models were created using recursive feature elimination on logistic regression and XGClassifier algorithms, as well as Bayesian and bandit optimization of neural network …

Modification Of Hyaluronic Acid To Enable Click Chemistry Photo-Crosslinking Of Hydrogels With Tailorable Degradation Profiles, Ciara Buckley

Articles

Hyaluronic acid (HA) is a naturally occurring mucopolysaccharide that, due to its inherent bioactivity and extracellular matrix-like structure, has the potential to be utilised extensively in tissue engineering. However, this glycosaminoglycan lacks the properties required for cellular adhesion and photo-crosslinking by UV light, which significantly hinders this polymers applicability. This research presents a method for modifying hyaluronic acid via thiolation and methacrylation to generate a novel photo-crosslinkable polymer with improved physicochemical properties, biocompatibility and the potential to customize biodegradability according to the ratio of monomers used. A decrease in stiffness proportional to increasing thiol concentration was observed when testing the …

Antibiotic Susceptibility Of Proteus Mirabillis That Isolates Of Diabetic Foot Ulcers In Al- Diwaniyah Hospital, Aseel Hussein Jaber, Suaad A. Fazaa Almiyah

Al-Qadisiyah Journal of Pure Science

The current study have been included 250 samples diabetic foot ulcer patients attending in Al-Diwaniyah Teaching Hospital and private clinics at a period of study from beginning October 2021 to February 2022, Isolates were identified by morphological form on blood agar and macConkey agar, traditional biochemical tests and then confirmed by Vitek 2 system. The result of bacterial culture have been recorded that only 80 samples had positive result to P. mirabilis formed (32%) of this result. Prevalence of P. mirabilis isolates in male more than female (34.78%) and (28.57%) respectively, after then were determination of antibiotics susceptibility pattern of …

Finite Time Blow Up Of Solutions For The M-Laplacian Equation With Variable Coefficients, Erhan Pişkin, Ayşe Fidan

Al-Qadisiyah Journal of Pure Science

In this work, we deal with the m- Laplacian equation with time dependent variable coefficients. Under suitable conditions on variable coefficients, we prove the blow up of solutions for finite time with negative initial energy. These results partially generalize and extend some recent ones in previous literature.

Candida Spp. Associated With Covid-19 And Its Susceptibility To Some Antifungals, Mohammed Mudhafar Alkhuzaie, Neeran Obied Jasim

Al-Qadisiyah Journal of Pure Science

The aim of this study was to conduct a survey of the Candida species associated with COVID-19 viral infection in 150 patients who were admitted to the intensive care unit (ICU) in Al-Diwaniyah Teaching Hospital in Al-Diwaniyah City, Iraq, for a five-month period from October 2021 to February 2022. The results indicated the dominance of Candida spp. over the rest of the isolated fungal species, with 97 isolates (64.66%). C. albicans was shown to be the most abundant species with a percentage of 55.67 percent (P 0.05), compared to the other Candida species that were isolated (Candida tropicalis 13.4 percent, …

Common Fixed Point Theorems By Using Two Mappings In B-Rectangular Metric Space, Qasim K. Kadhim

Al-Qadisiyah Journal of Pure Science

In this paper, the aim to obtain the existence and uniqueness of some common fixed point theorem on b-rectangular metric space by using new conditions including rational, maximum, minimum and combination for two mappings.

Comparative Physiology Study Of Side Effect Between Xenical And Lipo-6 Supplements Which Treated Obese Rabbets, Hayder Ghazib Abdulshaheed

Al-Qadisiyah Journal of Pure Science

Obesity is rapidly becoming a health problem, and it is considered a metabolic disease of epidemic proportions. Obesity is also associated with many comorbidities such as hyperlipidemia, fatty liver, atherosclerosis, cancer. Use of over-the-counter weight-loss supplements has become more common in the world; Xenical and Lipo-6 are two examples of nutritional supplements that do not pass safety research before being sold to the consumer. The ability of Xenical and lipo-6 supplements on DNA fragmentation in human lymphocytes was studied, where these cells represent important defense line of the body. On other hand, thirty white rabbits Iraqis in this experiment, weighing …

Correlation And Comparison Of Some Trace Elements And Their Related Proteins In Type 2 Diabetes Mellitus In Kalars City/ Kurdistan-Iraq, Hero Helal Muhammed Saed, Zeyan Abdullah Ali

Al-Qadisiyah Journal of Pure Science

No abstract provided.

Cosemiprime Ring, Muntaha Abdul- Razaq Hasan

Al-Qadisiyah Journal of Pure Science

In this paper ,we introduce a new type of rings,namely cosemiprime ringas a generalization of semiprime ring,where a ring C is said to be cosemiprime ring if I= for each ideal I of C .Some properties of this type of rings are obtained . Also,we determin the relationship among types of ideals in this ring.

Environmental And Diagnostic Study Of Some Parasites In River Diwaniyah-Fish Of Al Xanthopterus, Abtisam Jasim Abbas

Al-Qadisiyah Journal of Pure Science

The current study was concerned with investigating parasitic infections in Barbus Xanthopterus fish in Al-Diwaniyah River, for the period (July 2020-December 2020). (218) fish were collected from three different locations along the Al-Diwaniyah River. The results of the laboratory examination indicated that the fish were infected with the parasite Chilodonella Cyprinid and Eimiria sinenis. The current study recorded changes in the physical and chemical properties of Al-Diwaniyah River water, as the water temperature values, measured turbidity values, pH, electrical conductivity, hardness and TDS recorded a clear variation during the months of the study. The results of the statistical analysis indicated …

Fungal And Trichothecenes (Tct) Contamination Of Poultry Feed From Duhok Province, Kurdistan Of Iraq, L. F. Hussei A. A. M. Saadullah

Al-Qadisiyah Journal of Pure Science

Fungi are capable of reducing the nutritional value of food for human and animals and producing many mycotoxins. Mycotoxins-contaminated animal feed has adverse effects on productivity and animal health. As well, mycotoxins may be carried over into meat and eggs when poultry are fed with contaminated feed. Data on the occurrence of T-2 and HT-2 toxins in poultry feed from Kurdistan region of Iraq are very limited. T-2 toxin is the most toxic type A trichothecene mycotoxin. It is the secondary metabolite of the Fusarium fungi, and is common in grains and animal feed. Toxic effects have been shown both …