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Error Level Analysis Technique For Identifying Jpeg Block Unique Signature For Digital Forensic Analysis, Nor Amira Nor Azhan, Richard Adeyemi Ikuesan, Shukor Abd Razak, Victor R. Kebande

All Works

The popularity of unique image compression features of image files opens an interesting research analysis process, given that several digital forensics cases are related to diverse file types. Of interest has been fragmented file carving and recovery which forms a major aspect of digital forensics research on JPEG files. Whilst there exist several challenges, this paper focuses on the challenge of determining the co-existence of JPEG fragments within various file fragment types. Existing works have exhibited a high false-positive rate, therefore rendering the need for manual validation. This study develops a technique that can identify the unique signature of JPEG …

Raman Spectroscopy Of Aged Waterlogged Bones: Protocol Optimization, Bailey Hoplight

Chemistry

Current methods used for determining the age buried bones for forensic purposes are heavily affected by environmental conditions, can be susceptible to scientific bias and the interpretation can vary from investigator to investigator. Raman Spectroscopy can potentially be used as an automatic method to analyze the composition of bone eliminating the human factor. To test this hypothesis, we will use Raman spectroscopy to potentially identify the burial time of bones. The change in the chemical composition of the pig bones was probed using a Raman spectrometer with a 785nm excitation wavelength. Other parameters of the Raman instrument were optimized to …

Assessing The Potential Effectiveness Of Diffuse Reflectance Spectroscopy For Quantifying Neonatal Skin Properties Using Tissue Phantoms, Jack Murphy

Biomedical Engineering Undergraduate Honors Theses

Diffuse reflectance spectroscopy (DRS) has previously been shown to be effective at analyzing the optical characteristics of a wide variety of biological tissues, including the skin. In addition to being sensitive to the amount of blood and its oxygenation, DRS can be used to extract bilirubin levels and assess jaundice, a common complication in newborn infants. To assess its potential for being utilized in applications involving neonatal skin, we evaluated the utility of DRS for extracting hemoglobin and bilirubin concentrations from tissue phantoms. Phantom sets were created by including a known amount of scattering and by varying known concentrations of …

Investigating The Impact Of Hypoxia On Reactive Oxygen Species Generation Within Murine Breast Cancer Cells, Jared Mcpeake

Biomedical Engineering Undergraduate Honors Theses

When cancer metastasizes from a primary tumor site to secondary site through the bloodstream or lymph, the cancer becomes more difficult to treat. For this reason, it is vital to study what indicates the metastatic potential of a tumor. Current research has shown that cell lines with high metastatic potential display increased levels of metabolic adaptability over their nonmetastatic counterparts after undergoing hypoxic conditions. One method of assessing this adaptability is to measure the concentration of reactive oxygen species (ROS) produced by the cells while undergoing oxidative stress. In highly adaptable metastatic cells, an increase of ROS buildup within the …

Pulse Rate Variability Analysis During Hemorrhage In An Experimental Porcine Model, Gabbie Bonvillain, Lauren Crimmins, Md Abul Hayat, Adria Abella Villafranca, Sam Stephens, Hanna K. Jensen, Joseph A. Sanford, Jingxian Wu, Kevin W. Sexton, Morten Jensen

Biomedical Engineering Undergraduate Honors Theses

During the acute phase of hemorrhage, heart rate and peripheral resistance increases to maintain proper oxygen delivery to vital organs. This response is mediated by the autonomic nervous system. Heart rate variability (HRV) has become a widely utilized measure to determine the autonomic nervous system control over the heart. Recently, pulse rate variability (PRV) has been suggested to serve as a surrogate for HRV. This study evaluates the ability of PRV obtained from peripheral arterial pressure waveforms as a method for detecting hemorrhage. Time domain and frequency domain metrics were evaluated for 5-minute and 15-minute arterial pressure waveform signals prior …

Effect Of Larval Experience On Learning Mate Preference In Bicyclus Anynana, Taryn Tibbs

Biological Sciences Undergraduate Honors Theses

Phenotypic traits are shaped by the interaction of an organism's genes and the environment they experience. The plasticity of phenotypic traits is particularly responsive to developmental environments which can shape adult traits, such as expressed behaviors like mate choice and the ability to learn preferences. The Lepidoptera species Bicyclus anynana has been shown to learn mate preference based on social interaction following emergence from the chrysalis, however if and how the social complexity of the larval experience affects this ability to learn is less understood. Here I test the effects of isolation during the larval period on a female’s ability …

Utilization Of The Fundamental Attribution Error With Increased Immune System Inflammation, John Odom

Biological Sciences Undergraduate Honors Theses

Immune system inflammation is associated with sickness behavior, depressive mood, and alteration of decision-making processes. Because of these cognitive effects, inflammation may also lead to increased use of heuristics, for example the Fundamental Attribution Error (FAE). In the current research, inflammation was experimentally increased using the influenza vaccine, with participants receiving either the vaccine or a placebo injection and completing a measure that tests for the FAE. There were no significant differences between the two conditions regarding the number of personal, situational, or overall attributions made by the participants in the measure that would indicate use of the FAE. However, …

Effects Of A Leucine Supplementation On Mitochondrial Markers In Pre-Cachectic Female Mice, Breanna Williams

Biological Sciences Undergraduate Honors Theses

Cancer cachexia is a wasting syndrome characterized by extreme weight and skeletal muscle loss that results in death in many tumor bearing individuals. Because skeletal muscle requires a high amount of energy to function, skeletal muscle fiber cells need healthy mitochondria to function. When skeletal muscle loss atrophy occurs, the mitochondrial network is degraded. Different treatments for this muscle atrophy are being studied, one of which is a leucine supplementation since leucine has been found to stimulate skeletal muscle growth in other studies. However, current data suggests that a leucine supplementation in cachexic individuals exacerbates this atrophy. PURPOSE: This study …

Spike Protein Structural Dynamics Of Sars-Cov-2 Coronaviruses Studied Using Molecular Dynamics, William Strickland

Biological Sciences Undergraduate Honors Theses

Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has overwhelmingly impacted the global population, accounting for millions of confirmed infections and deaths over the last year. The virus’s influence on the health and safety of individuals, the economy, and daily life has been disruptive and devastating. While SARS-CoV-2 and SARS-CoV-1, two closely related members of the SARS coronaviruses, have shown the ability to cross the species barrier and infect humans, SARS-CoV-2 has predominantly been the virus responsible for the number of infections presently known. SARS-CoV-2 has also proven to be volatile, as many variants have …

The Influence Of Temperature And Body Size On Food Consumption In Prairie Lizards (Sceloporus Consobrinus), Morgan Pelley

Biological Sciences Undergraduate Honors Theses

Understanding the effect of temperature on physiological and digestive processes, such as voluntary consumption rate, is critical for assessing the impact of climate change. Food consumption is required for lizard survival and reproduction and its rate is dependent on temperature. For ectotherms, as temperatures increase, the amount of food consumed to meet the energy requirements related to survival and reproduction must also increase. Information on the amount of food voluntarily consumed may aid in determining if lizards can meet energy requirements. Such information could also aid in predicting survival of lizard populations, through construction of predictive climate change models. In …

The Effects Of Time Restricted Feeding On Markers Of Type 2 Diabetes, Brooke Martin

Biological Sciences Undergraduate Honors Theses

Type 2 diabetes is one of the fastest growing chronic diseases in the country, comprising 10% of the American population. Obesity rates are at an all-time high and greatly increase risk factors for developing diabetes. Insulin resistance is the main feature of type 2 diabetes and causes management of the disease to be extremely difficult. Currently there are different possible treatments for type 2 diabetes including medication and dieting. However, diets involving fasting, though high in popularity, do not have a lot of evidence regarding their ability to prevent the development of type 2 diabetes.

Time restricted feeding (TRF) is …

A Co-Evolutionary Approach To Test Case Generation For Safety-Critical Systems, Brad Thomas Costa

Theses and Dissertations

Safety-critical software development is a costly and time-consuming process that involves thousands of hours dedicated to test development. Tests must meet stringent developmental guidelines to verify the correct and complete implementation of their parent requirements. Further compounding any such effort is the tendency towards requirement churn or the frequent change to the software and other system requirements. This thesis presents a solution, PyTcGen, that alleviates these challenges by processing natural language requirements and programmatically generating the requisite test cases to ensure the software meets all of the conditions of that requirement. The solution uses template matching to marry requirements to …

Iot Security For Iotmon Attacks Based On Devices’ App Description, Raghad Jameel A. Alhazmi

Theses and Dissertations

There are concerns associated with ”inter-app” interactions, which occur when many independently developed home automation apps interact and affect one another, causing possibly dangerous unexpected app action. We extended a security tool named IoTMon, an IoT device management system capable of identifying all potential cross-app communication paths and analyzing their danger status. As part of our work, we keep an eye on the app description and safeguard IoTMon from being altered in any way that could obscure the real interaction related to another app action. We validate the IoTMon system’s integrity by applying the hash algorithm SHA512 with digital signature …

Testicular Torsion Education: Improving Awareness Among Boys And Their Caregivers Regarding The Urgency Of Evaluating Scrotal Pain, Abby Taylor

Capstone Experience: Master of Public Health

Introduction: Testicular torsion is a urologic emergency that requires prompt medical evaluation and surgical intervention. The length of time from onset of the torsion to evaluation in the emergency department is often delayed due to lack of knowledge of the urgency of the situation amongst boys and their caregivers. We hypothesize that an animated educational video will increase awareness of the condition and prompt urgent evaluation in the emergency department.

Methods: A 5-minute animated educational video was created following a boy, Danny, as he develops testicular torsion. Four population groups: boys, parents, school nurses, and pediatricians, completed group-specific pre- and …

Assessing Nutritional Health Knowledge In Sharing Clinic Patients With Diabetes, Minden Huntrods

Capstone Experience: Master of Public Health

Effective diabetes prevention and management relies on nutritional behaviors, thus a basic level of health knowledge is important for patients with diabetes and their caregivers in their quest to acquire acute glycemic control and minimize negative health outcomes (Ley et al., 2014). The purpose of this study was to assess the nutrition-related health knowledge of patients living with diabetes who are seen at the UNMC Sharing Clinic by use of a verbal questionnaire. This nutritional health knowledge assessment was a quantitative, prospective, survey-based study utilizing descriptive statistics. Approximately 86% of patients were proficient in food group and nutritious foods knowledge …

The Perception Of Technology On Continuous Health And Environmental Monitoring For Professional Drivers, Troy Suwondo

Capstone Experience: Master of Public Health

Due to the sedentary nature of professional truck driving (among other high-risk behaviors and hazardous exposures) many suffer from acute and chronic health conditions. There are many potential hazards in the professional driving profession. Many of these hazards come from those that transport hazardous materials. Figuring out what health and environmental indicators are important to measure can be a way to minimize hazards. Continuous health monitoring technology may be an option to detect disease and alert professional drivers when vital signs indicate impending health crises. Before this can be implemented, it will be important to evaluate the perception of wearable …

Interventional Radiology Procedures Without Sedation: The Nurse Experience, Catherine De Leon

Dissertations

Background: Many IR procedures offer a less invasive and economical alternative to some open or laparoscopic surgeries. Patients undergoing a procedure without moderate sedation are awake, alert, with heightened sensory perceptions, and vulnerable to their surroundings. There is a gap in the current body of literature relating to the IR nurse’s experience of caring for patients during procedures without the use of moderate sedation.

Purpose/Aims: The purpose of this study was to explore the lived experience of Interventional Radiology (IR) nurses caring for conscious patients undergoing a procedure without the use of sedation. This phenomenological study aimed to describe the …

Framework Of Hardware Trojan Detection Leveraging Structural Checking Tool, Rafael Dacanay Del Carmen

Graduate Theses and Dissertations

Since there is a significant demand for obtaining third-party soft Intellectual Property (IP) by first-party integrated circuit (IC) vendors, it is becoming easier for adversaries to insert malicious logic known as hardware Trojans into designs. Due to this, vendors need to find ways to screen the third-party IPs for possible security threats and then mitigate them. The development of the Structural Checking (SC) tool provides a solution to this issue. This tool analyzes the structure of an unknown soft IP design and creates a network of all the signals within the design and how they are connected to each other. …

The Art Of Nutrition, Kylanna Hardaway

Human Nutrition and Hospitality Management Undergraduate Honors Theses

Many colleges and universities offer students access to on-campus food pantries, yet very few students utilize these services despite reporting high rates of food insecurity. Considering the importance of a healthy diet on the developing minds of young adults, it is pertinent that colleges and universities find innovative ways to reach food insecure students. The purpose of this hybrid creative-research project was to creatively address commonly cited barriers of seeking food assistance (i.e., negative stigma, embarrassment, unknown location, awareness of resource, etc.) using public art. A mural was designed to encourage healthy eating behaviors and provide signage for the Jane …

The Role Of Angiocrine Factors In The Progression Of Salivary Disease, Owen Zon

Biological Sciences

In our blood vessels, cells called endothelial cells line the inside of veins and arteries. Due to the discovery that endothelial cells actually organogenesis during embryogenesis, our interest in these cells has increased to a new understanding of their functions in tissue repair and regeneration. These cells are no longer only considered passive modes of transport for bodily fluids and nutrients, but, with new research in the fibrosis of liver cells, are also considered to be key players in the repair of damaged organs and tissue. These cells release signals known as angiocrine factors that act in damaged areas of …

Investigating The Roles Of Rna Modification And Associated Enzymes On Stress Response And Connections To Human Diseases, Carrson Widen

Biological Sciences

Transfer RNAs decode messenger RNA using anticodon – codon interactions to deliver specific amino acids to a growing peptide chain. Enzyme-catalyzed modifications on specific nucleotides on tRNAs increase their stability and help mediate the speed and fidelity of translation, giving these modifications regulatory potential. RNA modifications are catalyzed by writer enzymes, and I predicted that writers are important in the cellular responses to stress. I have evaluated the following E. coli modification enzyme mutants: miaA, mnmE, dtd, tmcA, lysU, yeaK, and iscS, from the corresponding Keio E. coli gene deletion library. Writer mutants were exposed to hydrogen peroxide to induce …

Examining Best Practices For Urban Secondary School English As A New Language Teachers After The Passing Of The Commissioner’S Regulations Subpart 154.2 In New York State To Improve English Language Learner Students’ Academic Performance And Graduation Outcomes, Susanna Brown Cook

Education Doctoral

This purpose of this study was to examine the ways Commissioner’s Regulation Subpart 154.2 (CR Subpart 154.2) directly influenced seven seasoned secondary school English as a new language (ENL) teachers and their English language learner (ELL) students. Specifically, this study explored how the ENL teachers changed their pedagogy, instructional practices, and role as advocates since the implementation of CR Subpart 154.2. Utilizing Freire’s banking concept of education as a theoretical lens, the research was conducted using a qualitative descriptive methodology and semi-structured interviews. Findings were coded and interpreted to reveal the ENL teachers’ experiences with curricular changes prior to and …

Cracking The Glass Ceiling Code: A Phenomenological Study Of Executive Women Leaders In The North American Alcohol Industry, Terry Steele

Education Doctoral

The purpose of this study was to explore and understand the lived experiences of women who have ascended to executive leadership positions in the North American alcohol industry. Several data collection methods were utilized to strengthen the credibility of this phenomenological, qualitative study. Semi-structured interviews were conducted as the primary source of data collection to capture the lived experiences of executive women across the three segments of beer, wine, and spirits within the North American alcohol industry. A demographic survey, field notes, journal entries, and content analysis were used to triangulate the data. Five themes emerged from the analysis, which …

Will Millennials Be The Next Generation Of Virtual Team Members And E-Leaders: A Hypothesis Testing Study, Eduard C. Visagie

Education Doctoral

This study (a) identifies the characteristics and competencies of effective virtual teams, e- leaders, and the millennial generation, and (b) surveyed members of organizations located in the United States to evaluate if these American workers ascribe the research- based characteristics and competencies of effective virtual team members and e-leaders to professionals of the ever-growing millennial generation. This quantitative non- experimental comparative design study surveyed 1,050 Amazon Mechanical Turk (Mturk) workers who were (a) at least 26 years old; (b) employed or retired; (c) spoke or fully understood the English language; (d) lived and worked in the United States; and (e) …

African American Males And College Staff: Perception Of The Factors Identified For Student Retention In Community Colleges, Emmalean Pringle Overby

Education Doctoral

The purpose of this qualitative phenomenological study was to identify the social, institutional, and academic factors African American males and community college staff perceive are required for student retention. Spencer’s functionalism theory framed the study. Spencer argued that as the various organs work together in keeping the human body healthy, so can the multiple departments of an organization work together to care for the needs of its member citizens. The prism of the functionalism theory is that departments working cohesively and cooperatively within an organization better the social, institutional, and economic outcomes of the citizens. A total of five African …

Point Of Use Technologies To Increase Access To Clean Water In Rural Communities, Elena Arroway

Undergraduate Theses, Capstones, and Recitals

Access to clean water is an issue that many communities around the world struggle with. While large-scale efforts such as piping infrastructure have been successful, these are less effective at reaching small, rural communities. To supplement these efforts, point of use (POU) methods for water treatment can be implemented. These include boiling, chemical treatment, filters, and several additional technologies. These have all shown effectiveness in a lab setting, but their implementation in the real world, specifically in rural communities, has not been nearly as effective. In this paper, several different POU methods are evaluated for their effectiveness on a small-scale, …

Multi-Site Church : Best Practices To Launch And Sustain Multi-Site, Brandon Beals

ATS Dissertations

No abstract provided.

Metaphor And Atonement : A Conceptual Metaphor Study Of The Sacrificial Prescriptions In Lev 1-16, Bradley James Haggard

ATS Dissertations

No abstract provided.

The Healthy Pastor : Surviving In Ministry Without Losing Your Soul, Terry L. Roberts

ATS Dissertations

No abstract provided.

Community Health Worker Intervention To Improve Hba1c In Adult Diabetic Patients, Megan Wojtko

Doctor of Nursing Practice Projects

Type 2 Diabetes Mellitus (T2DM) is a disease that disproportionally impacts patients with multiple socioeconomic barriers that are often difficult to address during a primary care visit. Several provider and practice-level barriers also exist including time limitations within the visit and lack of trained staff to help with patient education and case management. Uncontrolled T2DM leads to poor health outcomes and increased healthcare costs. Community Health Workers (CHW) are trained lay persons that can successfully address the patient’s unmet needs and assist with the provider’s recommendations. The purpose of this project was to explore if a CHW led intervention focused …