Digital Commons Network^™

Essays On International Trade, Shenxi Song

Dissertations and Theses Collection (Open Access)

Reciprocity is a key principle governing the negotiations under the GATT/WTO agreement, which calls for a balance of concessions among the WTO members. In recent years, however, various politicians across the world have voiced concerns about their country's excessive obligations under the WTO and a lack of reciprocation by their trading partners. The objective in the first chapter is to evaluate the degree to which the pattern of applied tariffs across WTO members deviates from a balanced-concession condition. To this end, we employ a quantitative trade model and use alternative definitions of reciprocity (based on market access or welfare) to …

I'M Special But A.I. Doesn't Get It, Huei Huei Laurel Teo

Dissertations and Theses Collection (Open Access)

A growing body of management research on artificial intelligence (AI) has consistently shown that people innately distrust decisions made by AI and find such decision processes simply less fair compared to decisions made by humans. My dissertation adopts a different perspective to propose that aside from fairness concerns, AI decision methods trigger perceptions in people that their individual uniqueness has not be adequately considered and this has negative consequences for their psychological or subjective well-being.

By combining theories of uniqueness, individuality, power, and well-being, I develop five studies to provide empirical evidence that aversion to AI-mediated decisions also operates through …

Dual Pathways To Burnout And Engagement: The Role Of Personal Goal Facilitation Through Work, Self-Discrepancy And Emotions, Bek Wuay Tang

Dissertations and Theses Collection (Open Access)

According to the job-person fit framework, workplace burnout is often exacerbated by mismatches between the characteristics of the employee and the organization. Consistent with this view, past research has found that employees who perceive low personal goal facilitation through work (PGFW) report higher levels of burnout. However, personal goals were often assessed nomothetically, based on the assumption that individuals across occupational groups share similar personal goals they would like to achieve through work. The current research took an idiographic approach by examining if PGFW assessed based on individuals’ uniquely defined personal goals would predict burnout and work engagement. In addition, …

Scholars' Mine Quick Facts April 2022, Nancy S. Krost

Scholars’ Mine Statistics

Scholars' Mine Quick Facts are monthly reports of downloads, page hits, and other information about works in the institutional repository of Missouri S&T. A map with downloads by region is also included.

Mechanical Properties Of Fusion Welded Ceramics In The Sic-Zrb2 And Sic-Zrb2-Zrc Systems, Jecee D. Jarman, William Fahrenholtz, Greg Hilmas, Jeremy Lee Watts, Derek S. King

Materials Science and Engineering Faculty Research & Creative Works

Mechanical properties of welded SiC-ZrB2 and SiC-ZrB2-ZrC ceramics were measured up to 1700 °C. Commercial powders were hot pressed, machined into coupons, and preheated to 1600 °C before joining the ceramics using either tungsten inert gas welding or plasma arc welding. Toughness of the parent materials was 3–4 MPa*m1/2 which decreased after welding to 2–2.5 MPa*m1/2. Strength of the SiC-ZrB2-ZrC parent material was ~700 MPa at 25 °C, ~300 MPa at 1700 °C, and retained 40–60% of this strength once welded. Strength of the SiC-ZrB2 parent material was ~600 MPa at 25 °C and 1700 °C and retained 20–30% of …

Preparation Of Concrete Specimen For Internal Sulfate Attack Analysis Using Electron Backscatter Diffraction, R. Sharon Uwanyuze, Lucas Enright, Jiyao Zhang, Stefan Schafföner

Materials Science and Engineering Faculty Research & Creative Works

Concrete cores were obtained from houses in eastern Connecticut, USA, that had varying degrees of crumbling foundations and wall cracking. Electron backscatter diffraction (EBSD) was used simultaneously with energy dispersive X-ray spectroscopy to investigate the degradation of these samples. This combination allowed the precise correlation of elemental composition with mineral crystallography phase mapping. EBSD examination showed the presence of pyrrhotite, pyrite, and marcasite phases in some of the samples, whereas internal sulfate attack (ISA) is triggered by the release of sulfates through the oxidation of such iron sulfides. Secondary expansion products from ISA are associated with foundation cracking, wall bulging, …

Light Emission Of Self-Trapped Excitons From Ion Tracks In Silica Glass: Interplay Between Auger Recombination, Exciton Formation, Thermal Dissociation, And Hopping, Joseph T. Graham, Miguel L. Crespillo, Fernando Agulló-López, William J. Weber

Nuclear Engineering and Radiation Science Faculty Research & Creative Works

The initial luminescence yield of amorphous silica under ion irradiation has been studied at temperatures between 30 and 100 K, using swift ions of different masses and energies (3 MeV H, 3.5 MeV He, 19 MeV Si and 19 MeV Cl). The intensity of the 2.1 eV emission band, ascribed to the intrinsic recombination of self-trapped excitons (STEs), has been found to vary systematically with ion mass, energy and irradiation temperature. A detailed model has been developed to quantitatively describe those variations in terms of the competition between non-radiative Auger recombination, STE formation, STE thermal dissociation, and subsequent STE hopping …

A New Rock Hardness Classification System Based On Portable Dynamic Testing, Sasan Ghorbani, Seyed Hadi Hoseinie, Ebrahim Ghasemi, Taghi Sherizadeh, Christina Wanhainen

Mining Engineering Faculty Research & Creative Works

Hardness is one of the critical physical characteristics of minerals and rocks, which indicates the resistance of the rock to penetration, scratch, or permanent deformation. As a basic concept, rock hardness has a significant role in rock mechanics and geological engineering and is an appropriate diagnostic tool for the classification of minerals and rocks. The main purpose of this study is to guide rock engineers to measure the rock hardness faster, easier, and more accurately using Leeb's dynamic hardness test. Accordingly, this paper presents a new rock hardness classification system based on the Leeb dynamic and portable hardness testing method. …

Exploring The Deformation Mechanics Of Coal Ribs Using The Distinct Element Modeling Approach, Maurice Sunkpal, Taghi Sherizadeh

Mining Engineering Faculty Research & Creative Works

Understanding coal rib geomechanics is essential for improving rib stability and eliminating fatality and injury trends due to rib failures. There are presently no standardized rib control practices available in most countries. In light of this observed dearth, this investigation aims to improve understanding of rib failure mechanisms using the distinct element modeling (DEM) technique. DEM is chosen because of its superior advantage to explicitly represent discontinuities and their constitutive behaviors, besides that of the intact rock matrix. To analyze the rib stability, a numerical monitoring protocol is implemented to monitor the deformation characteristics of the coal rock mass as …

Theoretical And Numerical Evidence For The Potential Realization Of The Peregrine Soliton In Repulsive Two-Component Bose-Einstein Condensates, A. Romero-Ros, Garyfallia C. Katsimiga, Simeon I. Mistakidis, B. Prinari, G. Biondini, P. Schmelcher, P. G. Kevrekidis

Physics Faculty Research & Creative Works

The Present Work Is Motivated By The Recent Experimental Realization Of The Townes Soliton In An Effective Two-Component Bose-Einstein Condensate By B. Bakkali-Hassan Et Al. [Phys. Rev. Lett. 127, 023603 (2021)PRLTAO0031-900710.1103/PhysRevLett.127.023603]. Here, We Use A Similar Multicomponent Platform To Exemplify Theoretically And Numerically, Within The Mean-Field Gross-Pitaevskii Framework, The Potential Toward The Experimental Realization Of A Different Fundamental Wave Structure, Namely The Peregrine Soliton. Leveraging The Effective Attractive Interaction Produced Within The Mixture's Minority Species In The Immiscible Regime, We Illustrate How Initialization Of The Condensate With A Suitable Power-Law Decaying Spatial Density Pattern Yields The Robust Emergence Of The …

Counterflow Dynamics Of Two Correlated Impurities Immersed In A Bosonic Gas, Friethjof Theel, Simeon I. Mistakidis, Kevin Keiler, Peter Schmelcher

Physics Faculty Research & Creative Works

The Counterflow Dynamics Of Two Correlated Impurities In A Double Well Coupled To A One-Dimensional Bosonic Medium Is Explored. We Determine The Ground-State Phase Diagram Of The System According To The Impurity-Medium Entanglement And The Impurities' Two-Body Correlations. Specifically, Bound Impurity Structures Reminiscent Of Bipolarons For Strong Attractive Couplings As Well As Configurations With Two Clustered Or Separated Impurities In The Repulsive Case Are Identified. The Interval Of Existence Of These Phases Depends Strongly On The Impurity-Impurity Interactions And External Confinement Of The Medium. Accordingly The Impurities' Dynamical Response, Triggered By Suddenly Ramping Down The Central Potential Barrier, Is Affected …

Trinkets, Baubles, & Ephemera: This Will Look Real Good On Your Shelf., Kjelshus H. Collins

LSU New Orleans Theses and Dissertations

I am an amalgamation: Printmaker, ceramic sculptor, and toy maker.

I usually only make things with intent. I hardly ever throw anything away or destroy my art. I like the idea of archiving my work as possible artifacts for future generations. Prehistory, archaeology, mass production, and the consumers are my inspiration. Art is all an act of creation. I use various rituals and practices to create. The constant thoughts on alchemy and the personifications of the objects are driving influences. Through sculpting I create a new object in this reality. This object can be personified by simple alterations to the …

Variation And Efficiency Of High-Frequency Betas, Congshan Zhang, Jia Li, Viktor Todorov, George Tauchen

Research Collection School Of Economics

This paper studies the efficient estimation of betas from high-frequency return data on a fixed time interval. Under an assumption of equal diffusive and jump betas, we derive the semiparametric efficiency bound for estimating the common beta and develop an adaptive estimator that attains the efficiency bound. We further propose a Hausman type test for deciding whether the common beta assumption is true from the high-frequency data. In our empirical analysis we provide examples of stocks and time periods for which a common market beta assumption appears true and ones for which this is not the case. We further quantify …

Probabilistic Fixed Ballot Rules And Hybrid Domains, Shurojit Chatterji, Souvik Roy, Soumyarup Sadhukhan, Arunava Sen, Huaxia Zeng

Research Collection School Of Economics

We study a class of preference domains that satisfies the familiar properties of minimal richness, diversity and no-restoration. We show that a specific preference restriction, hybridness, has been embedded in these domains so that the preferences are single-peaked at the “extremes” and unrestricted in the “middle”. We also study the structure of strategy-proof and unanimous Random Social Choice Functions on these domains. We show them to be special cases of probabilistic fixed ballot rules (introduced by Ehlers, Peters, and Storcken (2002)).

Labor Market Institutions And The Incidence Of Payroll Taxation, Jinyoung Kim, Seonghoon Kim, Kanghyock Koh

Research Collection School Of Economics

Despite the unambiguous predictions of the canonical model of a competitive labor market, empirical studies of the labor market effects of payroll taxation provide conflicting evidence. We estimate the labor market impacts of payroll taxation in Singapore, the country with the most competitive and flexible labor market among the countries investigated in the literature. By exploiting the sharp reduction in payroll tax rate when workers turn 60, we find that the reduced payroll tax rate in Singapore has a large effect on wages without changes in employment. Our meta-analysis shows consistent evidence that varying degrees of labor market competitiveness across …

Labor Market Participation, Income Distribution, And Welfare Gains From Trade, Pao-Li Chang, Yi-Fan Chen, Wen-Tai Hsu

Research Collection School Of Economics

We develop a general equilibrium trade model where households with skill heterogeneity choose between home production and working on the labor market. Unlike most of the trade literature, the labor supply is elastic and is heterogeneous across households. As a result, trade affects labor participation, income, and welfare differently across households. We show that, when market goods and home goods are substitutes, households with lower skill levels expe-rience higher proportional increase to their income, while households with higher skill levels experience higher proportional increase in welfare. We further show that elastic labor supply preserves the extensive margin of welfare gains …

The Carrot Vs. The Stick: A Comparative Analysis Of Secondary Sanctions Vs. Positive Inducements In Gaining European Support For A U.S.-Led Sanction Regime, Andy Gomez

Graduate Program in International Studies Theses & Dissertations

The United States has a history of imposing its will on other countries via aggressive sanction regimes. In many of those regimes, U.S. policymakers note that support from European partner states is paramount to the regime's success. Over the past 20 years, the U.S. and its European partner state's interests have had relatively aligned, fostering cooperation and implementation of like-minded policies against target states. The end of paralleled interests left policymakers with a conundrum, which stemmed the research question of this study. What circumstances determine whether secondary sanctions or positive inducements are more effective in gaining European support for a …

Modeling Metastasis In Breast Cancer Patients Using Ehr Data, The Area Deprivation Index (Adi), And Machine Learning Models, Vishesh Patel

McKelvey School of Engineering Graduate Student Theses & Dissertations

Applying machine learning and statistical analysis on traditionally informatics problems is a growing area of research that can result in clinicians being better-able to predict disease outcomes and create more personalized levels of care. In this study, several machine learning models are used to model the likelihood of metastasis in breast cancer patients using a mix of data from the electronic health record and socioeconomic information derived from the Area Deprivation Index (ADI). Metastasis is a late-stage disease progression in a cancer diagnosis where a tumor spreads from its initial development point to another part of the body. In breast …

Scalable Software Infrastructure For The Lab And A Specific Investigation Of The Yeast Transcription Factor Eds1, Chase Mateusiak

McKelvey School of Engineering Graduate Student Theses & Dissertations

Individual biology labs handle increasingly large data sets. Ensuring accurate data entry, consistent sample metadata, and ease of access to the data once it is stored, are critical for both the integrity of analysis as well as productivity of the lab. Chapter 1 one of this thesis describes three implementations of software meant to facilitate handling data and metadata in the lab as the size of the data and complexity of analysis scale. The first piece of software is a database and entry interface for storing a large and varied amount of data on biological samples. The second is a …

Independence And Liability In Civil Aviation Accident Investigations Through Annex 13 And The Montreal Convention, Joshua C. Moscow

Vanderbilt Journal of Transnational Law

International law governs the investigation of civil aviation accidents through the Chicago Convention and the International Civil Aviation Organization. Their standards, outlined primarily in Annex 13 to the Chicago Convention, require accident investigations to be conducted in an independent and impartial manner. Notwithstanding this requirement, a state with a nationalized airline may lead an Annex 13 investigation into an accident involving (essentially) itself. The conflict that arises when this occurs challenges Annex 13 independence-a challenge that may be difficult to avoid given the prevalence of nationalized airlines. While Annex 13 independence is threatened when a state assumes the role of …

Evaluation Of Mealsense©: A Sensory Integration-Based Feeding Support Program For Parents., Audrey Trewin, Zoe Mailloux, Roseann C Schaaf

Department of Occupational Therapy Faculty Papers

IMPORTANCE: Children with autism spectrum disorder (ASD) often experience feeding challenges related to difficulties with sensory integration.

OBJECTIVE: To evaluate the content, acceptability, and usefulness of MealSense©, an online parent education program for children with ASD who have feeding challenges related to poor sensory integration.

DESIGN: A descriptive study in which experts reviewed and rated MealSense content for consistency with Ayres Sensory Integration® (ASI) principles and evidence-based practices in feeding.

PARTICIPANTS: A convenience sample of expert reviewers (n = 5) and parents of children with ASD and feeding challenges (n = 5).

RESULTS: Expert ratings (n = 5) met criteria …

Exploring And Adapting Chinese Gpt To Pinyin Input Method, Minghuan Tan, Yong Dai, Duyu Tang, Zhangyin Feng, Guoping Huang, Jing Jiang, Jiwei Li, Shuming Shi

Research Collection School Of Computing and Information Systems

While GPT has become the de-facto method for text generation tasks, its application to pinyin input method remains unexplored. In this work, we make the first exploration to leverage Chinese GPT for pinyin input method. We find that a frozen GPT achieves state-of-the-art performance on perfect pinyin. However, the performance drops dramatically when the input includes abbreviated pinyin. A reason is that an abbreviated pinyin can be mapped to many perfect pinyin, which links to even larger number of Chinese characters. We mitigate this issue with two strategies, including enriching the context with pinyin and optimizing the training process to …

Rumorlens: Interactive Analysis And Validation Of Suspected Rumors On Social Media, Ran Wang, Kehan Du, Qianhe Chen, Yifei Zhao, Mojie Tang, Hongxi Tao, Shipan Wang, Yiyao Li, Yong Wang

Research Collection School Of Computing and Information Systems

With the development of social media, various rumors can be easily spread on the Internet and such rumors can have serious negative effects on society. Thus, it has become a critical task for social media platforms to deal with suspected rumors. However, due to the lack of effective tools, it is often difficult for platform administrators to analyze and validate rumors from a large volume of information on a social media platform efficiently. We have worked closely with social media platform administrators for four months to summarize their requirements of identifying and analyzing rumors, and further proposed an interactive visual …

Ptm4tag: Sharpening Tag Recommendation Of Stack Overflow Posts With Pre-Trained Models, Junda He, Bowen Xu, Zhou Yang, Donggyun Han, Chengran Yang, David Lo

Research Collection School Of Computing and Information Systems

Stack Overflow is often viewed as one of the most influential Software Question & Answer (SQA) websites, containing millions of programming-related questions and answers. Tags play a critical role in efficiently structuring the contents in Stack Overflow and are vital to support a range of site operations, e.g., querying relevant contents. Poorly selected tags often introduce extra noise and redundancy, which raises problems like tag synonym and tag explosion. Thus, an automated tag recommendation technique that can accurately recommend high-quality tags is desired to alleviate the problems mentioned above.

Data Pricing In Machine Learning Pipelines, Zicun Cong, Xuan Luo, Jian Pei, Feida Zhu, Yong Zhang

Research Collection School Of Computing and Information Systems

Machine learning is disruptive. At the same time, machine learning can only succeed by collaboration among many parties in multiple steps naturally as pipelines in an eco-system, such as collecting data for possible machine learning applications, collaboratively training models by multiple parties and delivering machine learning services to end users. Data are critical and penetrating in the whole machine learning pipelines. As machine learning pipelines involve many parties and, in order to be successful, have to form a constructive and dynamic eco-system, marketplaces and data pricing are fundamental in connecting and facilitating those many parties. In this article, we survey …

Design & Analysis Of Mixed-Mode Integrated Circuit For Pulse-Shape Discrimination, Bryan Orabutt

McKelvey School of Engineering Graduate Student Theses & Dissertations

In nuclear science experiments it is usually necessary to determine the type of radiation, its energy and direction with considerable accuracy. The detection of neutrons and discriminating them from gamma rays is particularly difficult. A popular method of doing so is to measure characteristics intrinsic to the pulse shape of each radiation type in order to perform pulse-shape discrimination (PSD).

Historically, PSD capable systems have been designed with two approaches in mind: specialized analog circuitry, or digital signal processing (DSP). In this work we propose a PSD capable circuit topology using techniques from both the analog and DSP domains. We …

Increasing High School Students Awareness Of Teen Dating Violence, Desiree Acosta

Capstone Projects and Master's Theses

Nowadays, most adolescents are involved in more romantic relationships. However, many teens may not realize the risks that are associated with dating. Some risks may include physical, emotional, and sexual abuse. To spread awareness, I created a two day session curriculum about dating violence and delivered the content to a sophomore English class at Reedley High in Reedley California.

Increasing Social Development For 5th Graders, Akito Aromin

Capstone Projects and Master's Theses

Elementary school kids in 5th grade had social development being enhanced before the year 2020. The pandemic hit in 2020, causing the social development of children to falter. There have been more negative effects on social development in children, impacting their regulation of emotions, respect, and even forming friendships to have troubling effects. This is expressed because of the COVID-19 (Coronavirus), ceasing any real-life events or schools to halt for a bit and moving to remote learning for the time being. This paper outlines how social development in 5th graders was impacted, providing research needed on how you can increase …

Increasing Social-Emotional Skills In The First-Grade Students At Olson Elementary School, Krsteen Bebawy

Capstone Projects and Master's Theses

Some elementary children may have problems forming and maintaining positive relationships with their friends. Without these kinds of social-emotional learning and self-regulation skills, children may not form strong relationships with their peers and experience poor academic and social performance. Therefore, I created a three-day lesson on multiple ways of enacting kindness for a group of Kindergarten, first grade, and second-grade students in the Afterschool Academy (Expanded Learning Opportunity) Program at Olson Elementary School in Marina, California.

Promoting Emotional Development Skills In Preschool Children., Carolina Cordova

Capstone Projects and Master's Theses

Some preschool students have not yet developed the skills to regulate their emotions. Without sufficient skills on how to regulate their emotions, their academic progress may be negatively affected, and their ability to thrive in their Kindergarten classroom may be compromised. In order to help them develop the skills to regulate their emotions, I have created a three-day lesson for preschool students at Dual Language Academy of the Monterey Bay in Seaside, California.