Digital Commons Network^™

A Parameter Discovery Process For The Data Washing Machine Created For Unsupervised Data Curation, Kris E. Anderson

Theses and Dissertations

The Data Washing Machine (DWM) is a known and documented open-source Python Jupyter Notebook project that is the foundation for an Unsupervised Data Curation process. The DWM ingests reference data without a prior data cleansing activity and ultimately runs Entity Resolution (ER) on acceptable entity data to cluster duplicate references within the dataset. The DWM currently has 17 modifiable parameters that are used to help tokenize, cleanse, organize, link and cluster like references. With such a large number of parameters, some type of beginning settings as optimal as possible are needed for the DWM process for it to be useful …

Multimodal Image Retrieval Combining Image And Text, Md Imran Sarker

Theses and Dissertations

Retrieving visual or textual similarities from an image query and vice versa has drawn much interest in computer vision. With the growth of the E-commerce marketplace, image retrieval provides excellent competitive opportunities for vendors and customers through a robust recommendation system. Feature integration has always been an essential task for multimodal-based image retrieval approaches. However, different existing matching techniques have been used separately for visual and text similarity. Still, researchers are looking for new methods when it comes to multimodal Image Retrieval. In this paper, I study the image retrieval task, where the input query is an image plus text …

Safety Behind The Computer Screen: Gauging Public Perceptions About Teacher Student Sexual Abuse, Kilby E. Raptopoulos

Theses and Dissertations

Female sex offenders are often portrayed in the media more leniently than male sex offenders, which could influence the way the public perceives these offenders. Further, the media is not always accurate in how they portray sex crimes either which can translate to misconceptions among the public specifically regarding sex offenders. The purpose of this research was to explore media coverage of teacher student sexual abuse in relation to the public’s reaction to these news stories. The current study utilized news stories to analyze reader comments on a news website to understand 1) how teacher sex offenders are portrayed, 2) …

U.S. Department Of The Interior: Sharing Fair Data Fairly, Jason Earl Duke

Theses and Dissertations

Thousands of scientists, researchers, students, and organizations consume government-produced data daily that are often difficult to locate because they are collected and stored in multiples at varying levels of quality, inhibiting their usefulness for data science investigations and analysis. To address these challenges, United States Government agencies and bureaus have been implementing Findable, Accessible, Interoperable, and Reusable (FAIR) Data Principles into their data-sharing strategies since 2016. However, differing interpretations of the FAIR Data Principles lead to data that must be documented uniformly and adequately integrated for reuse. Select datasets have been analyzed with peer-reviewed FAIR assessment tools to establish a …

Determinants Of Democratic Regression: The Case Of Tunisia, Bassant Ahmed

Theses and Dissertations

On the 25th of July, 2021, the Tunisian president Kais Saied dissolved the cabinet and froze the parliament. These decisions were the first among a series of ensuing measures which curtailed the progression of the nascent Tunisian democracy. This thesis aims to unfold the causes underlying Tunisia’s current democratic regression. It finds that the interplay between institutional, economic, regional and international factors represented an immense challenge to Tunisian democracy. By situating theories of democratic backsliding in the context of the Arab region, the thesis argues that institutional lacunas, military professionalism, expansion of corruption networks and dynamics of regional rivalry have …

Engineering A Scalable Deep K-Means Algorithm On Spark And Tensorflow, Skyler Thompson

Theses and Dissertations

Due to modern data collection practices, datasets can be both high dimensional and very large in size. With the production of these large, high dimensional datasets comes the task of analyzing them. Deep neural networks are often applied to high dimensional datasets in a supervised manner where a network is trained using labeled datasets and then applied to other, similar datasets. However, labeled datasets are often expensive to produce and are not always available for training purposes in all scenarios. For unlabeled datasets, unsupervised learning using data clustering is often the learning method of choice. Deep clustering is a relatively …

A Structural Examination Of Organizational Justice, Self-Legitimacy, Employee Engagement, And Civic Engagement In Police, Mary Isis Wuestewald

Theses and Dissertations

Recently, the concept of police self-legitimacy has spurred research interest. Several studies have demonstrated beneficial outcomes associated with officers who are confident in their own authority. The current dissertation builds on this emerging area of study by examining the influence of organizational justice on police self-legitimacy, as well as self-legitimacy’s impact on employee engagement and civic engagement in police officers. Survey data were gathered from a sample of 1,391 officers from variously sized agencies across seven regions of the United States. Structural equation modeling was used to test the hypotheses. The results indicate that organizational justice is a key component …

Trauma Presentation Among Latinx/Hispanic Subgroups, Ana Paula Leao De Camargo

Theses and Dissertations

Hispanics/Latinos are the fastest-growing minority group in the United States and are estimated to compose half of the American population by 2060 if growing trends follow current levels. It has been suggested that Latinx/Hispanics perceive and react to adverse experiences with somatization, which is highly comorbid with Post-traumatic Stress Disorder (PTSD) symptoms (van der Kolk, et al 1996). This study surveyed 451 participants from which 88% identified as being Hispanic or Latinas, 2.7% identified as being Black Hispanic/Black Latina, and 9.3% identified as having mixed ethnicities including Hispanic/Latina. Regarding place of birth, 431 respondents (95.6%) identified being born in Continental …

An Enhanced Cloud-Native Deep Learning Pipeline For The Classification Of Network Traffic, Ahmed Sobhy Elkenawy

Theses and Dissertations

In a rapidly changing world, the way of solving real-world problems has changed to leverage the power of the advancements in multiple fields. Cloud-native computing approaches can be utilized with deep learning techniques to provide solutions in several important areas. For instance, with the emergence of the pandemic, much dependence on modern technologies came out as a replacement for face-to-face interaction. Deep learning can reach a high level of accuracy, which makes it very effective in the support of modern services and technologies. However, there are some challenging issues because deep learning requires many large-scale experiments, which demand a lot …

The Impact Of Natural Resources And Foreign Aid On Governance: Evidence From The Mena Countries, Dalia Moharram

Theses and Dissertations

Theoretical and empirical literature points out the “Curse of Natural Resources” where the abundance of resources in certain countries may hamper economic growth through several channels. The paper extends the previous research and investigates whether higher revenues- not only from natural resources’ rent but also from foreign aid- exhibit another type of curse in MENA countries. That is, do higher natural resources rent, and foreign aid erode the quality of institutions as measured by governance indicators in the MENA countries? This research utilizes a panel data fixed-effect model to investigate the abovementioned relationship during the period 2000-2020. The countries are …

The Rise Of Irregular Domestic Work Amongst Female Migrants In Italy, Elena Romeo

Theses and Dissertations

In today’s globalized world, hardship and geopolitical and economic crises have led to the lack of decent work, and this resulted in new, migratory movements. Women have joined these migration flows in growing numbers, which has important consequences for gender equality in both countries of origin and destination (ILO,2015). Hence, migration has a new character, and it includes many women who emigrate from their country because of a lack of access and choices to jobs, exploitation, and lower wages compared to men in Europe. In this context, one can affirm that today irregular migration is on the rise, especially in …

Germania Our Mother, Columbia Our Bride: Das Arkansas Echo In The First World War, Harrison Mitchell

Theses and Dissertations

This thesis explores the tone and content that appeared in the German-language Arkansas newspaper, Das Arkansas Echo, during the First World War. The newspaper’s content between the American neutrality period (1914-1917) was compared to the American war period (1917-1918) to see how it changed as political situations changed and anti-German sentiment grew. Additionally, the actions of the Echo’s editorial staff outside of the newspaper were explored within the context of their published content. This thesis found that both periods contrasted sharply with each other. The newspaper expressed support for the Central Powers and the actions of Germany in the American …

Urban Resettlement Policies In Cairo: A Case Study Of Manshaiat Nasser And Asmarat City, Roshan Abouzied

Theses and Dissertations

Egypt has a long history of urban development efforts. These efforts have provided substantial solutions in providing the urban population with adequate housing opportunities, especially those living in slum areas. However, these policies have not offered optimal solutions for all residents of informal areas, and recently governments have resorted to evictions and resettlement as one of the main strategies for removing unsafe informal areas. These strategies have had a diversity of consequences on the urban planning of cities like Cairo and repercussions on community dynamics and community social fabric. Accordingly, this thesis demonstrates the impact and reflects the consequences of …

An Epileptic Seizure Detection Method From Eeg Signals Based On A Classifier-Driven Feature Reduction Technique, Raymond N. Kamel

Theses and Dissertations

Epileptic seizure detection can improve the quality of life of epileptic patients, allow for more accurate medication, and minimize the risk of sudden unexpected death in epilepsy (SUDEP). This thesis work aims to develop a robust and stable algorithm for epileptic seizure detection through the classification of EEG signals. To achieve this aim, a methodology is proposed to develop a classifier that can differentiate between the healthy (normal), interictal, and ictal states of EEG signals, while maximizing the classification accuracy and minimizing the computational redundancy. The main pillar upon which this methodology is designed is using a problem-specific classifier-driven feature …

Waste-Derived Hybrid Nanocomposite For The Simultaneous Removal Of Antibiotics And Dyes From Water Bodies, Abdelkader Ahmed

Theses and Dissertations

A novel eco-friendly approach was used to synthesize a hydroxyapatite-carbon nanocomposite (HAP-C) by utilizing the industrial waste of cement kiln dust (CKD) as a source of calcium for the synthesis. Citric acid was first used to chelate the calcium from CKD, then the chelate was converted into a mixture of calcium carbonate and carbon by calcination at 450°C for 1 h. The mixture was used as a precursor for the synthesis of HAP-C by reacting it with ortho-phosphoric acid via a precipitation method. HAP-C was then calcined at different temperatures of 400, 500, and 700°C under inert atmosphere, with a …

Artificially Intelligent Communication: An Exploratory Study On Replika Mobile Application, Nouran El-Ashry

Theses and Dissertations

This paper aims to address artificial intelligence from a communication perspective by looking at the usage of Replika, an AI-based platform. A quantitative survey was conducted to analyze the frequency of usage, attitude toward the application and the level of attachment to it. Moreover, qualitative questions were developed to get in-depth understanding of the type of relationship users have with their Replika application and reasons behind their usage. Results show no significant relationship between demographics and the application consumption except for age where older users communicate more frequently with the application than younger ones. Moreover, attachment levels were related to …

Carbon Dioxide Capture Potential Of Chitosan-Nanocrystalline Cellulose Aerogel Composite Materials: Synthesis, Functionalization, And Characterization, Victor Oghenekohwo

Theses and Dissertations

The carbon dioxide capture technology has been established as an invaluable player in the current global efforts to allay the warming of the planet and climate change. In this connection, the study centers on the valorization of waste organic materials for the application described herein. The sorbents, sourced from a combination of by-products of food processing and agricultural residue waste products, viz. seafood waste and sugarcane bagasse, showed prospects for selective carbon dioxide capture, adsorbing up to 5.78 mg/g of the gas at 273 K and 2.82 mg/g at 298 K, as observed on the Micromeritic ASAP 2020 surface area …

How To Boost Egyptian Pharmaceutical Exports? Challenges And Opportunities, Shereen Mohamed Abdelgawad

Theses and Dissertations

One of the key pillars of the Egyptian economic reform adopted in 2016 was to raise the export rate. Since the pharmaceutical sector is one of Egypt's most established industries, the Egyptian government worked on a national plan to support the exports of medicines. Despite the impact of pharmaceutical exports on economic growth, there was limited research on this topic in Egypt. This study aims to provide a better knowledge of the problems of exporting medications in Egypt by investigating barriers and Covid-19 influence on pharmaceutical export. In-depth semi-structured interviews with representatives from pharmaceutical exporting companies have been conducted. The …

Adsorption Of Antibiotics In Wastewater By Stevia Rebaudiana Zinc Oxide Nanoparticles, Hania Guirguis

Theses and Dissertations

Green zinc oxide nanoparticles (ZnO NPs), synthesized using Stevia rebaudiana extract, are investigated as novel adsorbents for the removal of the antibiotics ciprofloxacin (CIP) and tetracycline (TET) from water. The green ZnO NPs were synthesized using a novel, rapid and ecofriendly technique that utilized a natural source with high sugar content as a reducing agent and a less energy intensive approach that did not require annealing or calcination at high temperatures. The particles are mesoporous, with a hexagonal wurtzite structure, a BET surface area of 15.28 m2/g and a size range of 37.36-71.33 nm. At pH 5, the green ZnO …

Youth Perceptions And Motivations Towards Entrepreneurship In Egypt And Their Policy Implications: A Qualitative Study, Yara Ali Hassan

Theses and Dissertations

Entrepreneurship is one of the key driving forces for economic development. The entrepreneurship ecosystem in Egypt has been growing exponentially whereas a large number of public and private institutions have been established to support young entrepreneurs to start their own business. Despite of the growing attention towards entrepreneurship, few studies have investigated the real motives of Egyptian youth who decided to join the entrepreneurship field. Thus, this study aims to advise policy makers through studying youth perceptions and motives towards entrepreneurship and the underlying factors that shape their perceptions. The study has been conducted using a qualitative approach and purposive …

Legality Of Autonomous Weapons: Where To Draw The Line?, Nayra Abdeltawab Ibrahim Abdeltawab

Theses and Dissertations

Inspired by Koskenniemi’s work, From Apology to Utopia, this paper attempts to engage in the discussion on the legality of autonomous weapons by showing the conflicting arguments presented by advocates of each side of the debate. The paper does not aim at finding the answer to whether autonomous weapons can be lawfully deployed or not, but rather its main interest is to highlight the indeterminacy within international law that allows both advocates and opponents of banning autonomous weapons to hold to their arguments and legally defend them on basis of the same legal rules used by their adversaries to refute …

Revolution In Cuba And Iran: Toward A Unified Theory Of Analysis, Mason Sims

Theses and Dissertations

This thesis seeks to fill a small gap in the study of revolution through unifying approaches and theories utilized to explain the complex social phenomenon. To facilitate this, a large portion of the work focuses on revolution literature which has been chosen to represent authors from the earliest generations covering the subject to the more recent. In compiling and reviewing these works, it can be seen that there exist common lines of not just explanation, but also a continuous series of critiques resurfacing within each generation. Within this compilation lies the roots of the theory presented in this thesis, that …

The Impact Of Gender Differences And Geographic Locations On Social Media Literacy Among Public Universities Students, Heba Tallah Moustafa Helmy

Theses and Dissertations

The objective of this study was to investigate the effect of both gender difference and geographic location on social media literacy levels among undergraduate students in public universities in Egypt. Four aspects related to social media literacy were considered in the Likert-scale survey, including basic technical skills, digital interactions, information evaluation, and privacy and security practices. A total of 520 students participated in this exploratory research, of which 265 males and 255 females enrolled at four public universities in different geographic locations. Cairo University and Ain Shams University represent the urban areas. The other two universities are located in center-periphery …

Plastivore: Identification And Functional Characterization Of Plastic Degrading Lipase And Carboxylesterase Enzyme Families From Galleria Mellonella, Joseph Boctor

Theses and Dissertations

[provided as attachment while patent is pending]

Optimization Of Contractor’S Cash Flow Based On Subcontractor’S Payment Management Plans, Helen Ghali

Theses and Dissertations

In many counties, the construction industry relies heavily on outsourcing packages to execute their projects and expand their businesses to fit in the diverse market. Such extensive integration of outsourced subcontractors is becoming an influential factor in contractors' cash flow management. Accordingly, subcontractors’ price selection and their respective payment plans are important phenomena and pivotal components for the well-being of the contractor’s cash flow. Cash flow management is considered one of the most critical areas analyzed by contractors when getting into a project. Contractor’s cash flow is built from a pool of interrelated information depending on subcontractors, suppliers trade credit …

Binge-Watching Effect On Egyptian Youth Perceptions: The Case Of Netflix, Layla Umara

Theses and Dissertations

With the emergence of VOD content worldwide, and its increasing popularity in the Middle East and Egypt, this paper examines the effect of binge-watching the subscription video on demand streaming service “Netflix” on Egyptian Youths’ perceptions and how they perceive the real world. The Study tests both the number of hours spent watching Netflix and the frequency of binge-watching on the impact on perceived reality of societal values, third person effect and the acceptance of controversial societal values in Egypt. It also studies whether the influence of the cumulative long-hours of exposure to Netflix may give a new dimension to …

A Universe Of Mirrors: The Mirror Metaphor In Ibn ʿArabī’S Thought In Relation To Ontology, Knowledge, And Perfection, Basma Eletreby

Theses and Dissertations

The mirror metaphor is ubiquitous in sufi texts. It operates uniquely in Ibn ʿArabī’s thought and writings as a representation of his conception of the cosmos. Being, knowledge, and perfection are among the seminal themes of al-Shaykh al-Akbar’s thought, and the mirror metaphor is employed in revealing their reality in his writings. As opposed to Unity of Being, a term that Ibn ʿArabī does not employ, the mirror embodies the pillars of Ibn ʿArabī’s conception of Being through representing the quintessential huwa lā huwa, the configuration of oneness and manyness, and most importantly, the definition of the relation between God …

A Review Of Covid-19 Lockdown Across Different Countries During 2020: Characterization Of Risk Factors And Severity Of Covid-19 In Egyptian Patients, Hanya Mohamed

Theses and Dissertations

On March 12, 2020, The World Health Organization (WHO) announced the new coronavirus 2019 as a global pandemic. In January 2022, the number of COVID-19 cases reached 300 million confirmed cases with a total death count of 5.5 million cases. Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) was identified in a seafood wholesale market in Wuhan, China. At the time of the outbreak, there was no effective treatment to protect from the novel coronavirus; the only way to control the pandemic was through reducing person-to-person contact and taking preventive measures based on the severity of the disease among the population. The …

Terfezia Boudieri And Terfezia Claveryi Inhibit The Lps/Ifn-Γ-Mediated Inflammation In Raw 264.7 Macrophages Through An Nrf2-Independent Mechanism, Abdelhameed Dawood

Theses and Dissertations

Desert truffles have been used as traditional treatments for a variety of inflammatory disorders. However, the molecular mechanisms underlying their anti-inflammatory effects in RAW 264.7 macrophages have remained to be fully elucidated. Therefore, the present study investigated the anti-inflammatory activities of two main desert truffles, Terfezia boudieri and Terfezia claveryi and the underlying mechanisms associated with their anti-inflammatory activities in RAW 264.7 macrophages stimulated with lipopolysaccharide/interferon-gamma (LPS/IFN-γ) in order to develop innovative therapeutics for the treatment of inflammation.

To address this objective, RAW 264.7 cells were treated with increasing concentrations of T. boudieri and T. claveryi extracts in the presence …

Security Governance Strategies: Comparing Rebel Groups In Lebanon And Syria, Nourhan Samir Ibrahim

Theses and Dissertations

The prevalence of civil wars especially after the end of the Cold War led to the rise of rebels who control parts of national states in the absence or weakness of the central government. Therefore, scholars who are interested in studying civil wars started to give more attention to how these rebels function after controlling a territory. It is substantial to study rebels who govern since they influence the post conflict peace-building. This study aimed at exploring the different factors that contribute to the sustainability of rebel governance during civil wars, and how this sustainability might lead to inclusion in …