Social and Behavioral Sciences Commons^™

Abmscore: A Heuristic Algorithm For Forming Strategic Coalitions In Agent-Based Simulation, Andrew J. Collins, Gayane Grigoryan

Engineering Management & Systems Engineering Faculty Publications

Integrating human behavior into agent-based models has been challenging due to its diversity. An example is strategic coalition formation, which occurs when an individual decides to collaborate with others because it strategically benefits them, thereby increasing the expected utility of the situation. An algorithm called ABMSCORE was developed to help model strategic coalition formation in agent-based models. The ABMSCORE algorithm employs hedonic games from cooperative game theory and has been applied to various situations, including refugee egress and smallholder farming cooperatives. This paper discusses ABMSCORE, including its mechanism, requirements, limitations, and application. To demonstrate the potential of ABMSCORE, a new …

The Role Of Library And Information Profession For Political Development And Stability In Nigeria, Patricia Ngozi Ofodu Ph.D. (Cln), Mercy Enefu Okwoli Cln

Library Philosophy and Practice (e-journal)

Libraries information provision are able to provide and satisfy its diverse user’s information needs timely and accurately. The librarian’s unique professional duties of information delivery and services are valuable in the dissemination of information and resources to their clientele. This study aims at investigating the key roles of libraries and information profession for political development and stability in Nigeria. The paper was able to establish that Nigerian libraries are well placed to contribute meaningfully and effectively in political and developmental stability of the nation for a positive change, most especially to enlighten the populace on the political status of the …

Exploring Psychopathy Predictors In Males And Females, Teresa M. Encalada

FIU Electronic Theses and Dissertations

Psychopathy is a clinical term used to describe a personality disorder. This personality disorder presents as callousness, lack of empathy, feelings of grandiosity, impulsivity, narcissism, and a lack of guilt or remorse (Cleckley, 1951). It is noteworthy that by some estimates, those meeting the criteria of psychopathy commit 20 – 40% of violent crimes (Drislane et al., 2019) and makeup between 15% and 25% of the prison population (Kiehl & Hoffman, 2011). As such, psychopathy is one of the most significant criminal justice constructs of the present day because of the heightened and persistent levels of aggression, criminality, and financial …

Belief Convergence Under Misspecified Learning: A Martingale Approach, Mira Frick, Ryota Iijima, Yuhta Ishii

Cowles Foundation Discussion Papers

We present an approach to analyze learning outcomes in a broad class of misspecified environments, spanning both single-agent and social learning. We introduce a novel “prediction accuracy” order over subjective models, and observe that this makes it possible to partially restore standard martingale convergence arguments that apply under correctly specified learning. Based on this, we derive general conditions to determine when beliefs in a given environment converge to some long-run belief either locally or globally (i.e., from some or all initial beliefs). We show that these conditions can be applied, first, to unify and generalize various convergence results in previously …

Understanding Blended Family Stability: A Phenomenological Study, Marion F. Travers

Doctoral Dissertations and Projects

Most remarriages and blended families dissolve within 1-5 years, and last an average of 3.05 years. The factors that contribute to their dissolution have been defined well in the literature; however, specific protective factors that lead to blended family stability have not. In this study, ‘blended family stability’ refers to individual participants who have remained in their blended family for more than five years and reported more positive than negative factors. This study sought to define the nuclear family and the blended family, and highlight the vast differences across blended families by (1) examining the challenges experienced in remarriage and …

Understanding The Transient Nature Of Stem Doctoral Students’ Research Self-Efficacy Across Time: Considering The Role Of Gender, Race, And First-Generation College Status, Kaylee Litson, Jennifer M. Blaney, David F. Feldon

Instructional Technology and Learning Sciences Faculty Publications

Developing research self-efficacy is an important part of doctoral student preparation. Despite the documented importance of research self-efficacy, little is known about the progression of doctoral students’ research self-efficacy over time in general and for students from minoritized groups. This study examined both within- and between-person stability of research self-efficacy from semester to semester over 4 years, focusing on doctoral students in biological sciences (N = 336). Using random intercept autoregressive analyses, we evaluated differences in stability across gender, racially minoritized student status, and first-generation student status. Results showed similar mean levels of self-efficacy across demographic groups and across …

Measuring The Temporal Stability Of Near-Repeat Crime Patterns: A Longitudinal Analysis, David Hatten, Eric L. Piza

Publications and Research

This study investigates the temporal stability of identified near-repeat robbery patterns in Newark, New Jersey. With one noteworthy exception, scholars have yet to explore the temporal stability of identified spatiotemporal crime clusters. Furthermore, researchers have yet to measure the near-repeat phenomenon longitudinally. To fill this gap, this study employs a longitudinal design to measure variation in effect size and significance of identified near- repeat crime patterns across 13 “rolling” one-year time periods within a 2-year study period (January 2015–December 2016). Temporal instability was found within two out of six spatiotemporal crime clusters. Results are reported in the form of formalized …

Agreeing To Disagree: Diversity, Political Contractualism, And The Open Society, John Thrasher

Philosophy Faculty Articles and Research

Political contractualism is important in societies characterized by substantial moral and political disagreement and diversity. The very disagreement that makes the social contract necessary, however, also makes agreement difficult. Call this the paradox of diversity, which is the result of a tension between two necessary conditions of political contractualism: existence and stability. The first involves showing the possibility of some agreement, while the second involves showing that the agreement can persist. To solve both of these problems, I develop a multilevel contract theory that I call the “open society” model of political contractualism that incorporates diversity into the contractual model …

Stability And Robustness In Misspecified Learning Models, Mira Frick, Ryota Iijima, Yuhta Ishii

Cowles Foundation Discussion Papers

We present an approach to analyze learning outcomes in a broad class of misspecified environments, spanning both single-agent and social learning. Our main results provide general criteria to determine—without the need to explicitly analyze learning dynamics—when beliefs in a given environment converge to some long-run belief either locally or globally (i.e., from some or all initial beliefs). The key ingredient underlying these criteria is a novel “prediction accuracy” ordering over subjective models that refines existing comparisons based on Kullback-Leibler divergence. We show that these criteria can be applied, first, to unify and generalize various convergence results in previously studied settings. …

Belief Convergence Under Misspecified Learning: A Martingale Approach, Mira Frick, Ryota Iijima, Yuhta Ishii

Cowles Foundation Discussion Papers

We present an approach to analyze learning outcomes in a broad class of misspecified environments, spanning both single-agent and social learning. We introduce a novel “prediction accuracy” order over subjective models, and observe that this makes it possible to partially restore standard martingale convergence arguments that apply under correctly specified learning. Based on this, we derive general conditions to determine when beliefs in a given environment converge to some long-run belief either locally or globally (i.e., from some or all initial beliefs). We show that these conditions can be applied, first, to unify and generalize various convergence results in previously …

Belief Convergence Under Misspecified Learning: A Martingale Approach, Mira Frick, Ryota Iijima, Yuhta Ishii

Cowles Foundation Discussion Papers

We present an approach to analyze learning outcomes in a broad class of misspecified environments, spanning both single-agent and social learning. We introduce a novel “prediction accuracy” order over subjective models, and observe that this makes it possible to partially restore standard martingale convergence arguments that apply under correctly specified learning. Based on this, we derive general conditions to determine when beliefs in a given environment converge to some long-run belief either locally or globally (i.e., from some or all initial beliefs). We show that these conditions can be applied, first, to unify and generalize various convergence results in previously …

Locating An Optimal Site For A Controversial Facility, Jean-Baptiste Tondji

Economics and Finance Faculty Publications and Presentations

We consider a situation in which policymakers in a local community have to choose an optimal site for a controversial and essential project in a democratic setting. Policymakers have either single-dipped or multi-dipped preferences over a Euclidean space of possible locations. We provide two existence results for this issue. There exists at most two optimal sites if the size of policymakers is odd, and they have single-dipped preferences over a one-dimensional site space.

Steadfast Standards Or Fluctuating Fancies? Stability And Change In People’S Mate Criteria Over 27 Months, Carrie A. Bredow, Nicole Hames

Faculty Publications

Although research on mate preferences has been built on the assumption that the criteria people report at one point in time should predict their future partnering behavior, little is known about the temporal stability of people’s standards. Using survey data collected at four time points from 285 originally unmarried individuals, this study examined the rank-order, meanlevel, individual-level and ipsative stability of people’s mate criteria over 27 months. Overall, reported standards exhibited moderate to high baseline stability, with rank-order and ipsative estimates comparable to those reported for personality traits. At the same time, mean- and individual-level analyses revealed small, but significant, …

Constructing And Destructing The Peace: Models Of International Engagement In Post-Conflict States, Colin Churchill

Political Science Honors Projects

Variance in the stability of post-conflict states presents an interesting predicament. What causes this variance in states two or three decades removed from civil conflict? In this paper, I argue that the type of engagement that international actors take towards post-conflict states explains differences in stability. I draw out four distinct models of international engagement from three case studies of Lebanon, Bosnia and Herzegovina, and Northern Ireland that present the different ways that international actors have constructively and destructively engaged in these states. Furthering this analysis is an examination of the transition or possible transition between models in the cases.

Developmental Changes In Imitation During Mother-Infant Interactions, Maria Markodimitraki, Maria Kalpidou

Psychology Department Faculty Works

We investigated the continuity and stability of imitative episodes (IMEs) to shed light on the nature of early infant imitative ability. We observed and analyzed interactions of 27 mother-infant pairs as they played in their homes at one and 10 months. We coded the initiator, frequency, duration, kind, structure, and affect of IMEs. At 10 months, dyads engaged in more frequent and longer IMEs that tended to be vocal, turn-takings, and positive in affect. Significant stability was observed. Mothers who initiated more IMEs and expressed more positive affect had infants who did the same. Findings suggest that dyads set stable …

Coordination And Evolutionary Dynamics: When Are Evolutionary Models Reliable?, Daniel Graydon Stephenson

ESI Publications

This study reports a continuous-time experimental test of evolutionary models in coordinated attacker–defender games. It implements three experimental treatment conditions: one with strong coordination incentives, one with weak coordination incentives, and one with zero coordination incentives. Each treatment exhibits identical equilibrium predictions but distinct evolutionary predictions. Observed behavior was tightly clustered around equilibrium under both the zero coordination treatment and the weak coordination treatment but widely dispersed from equilibrium under the strong coordination treatment. This result was anticipated by explicitly dynamic models but not by conventional stability criteria. In contrast to the widely maintained assumption of sign-preservation, subjects frequently switched …

Applications Of Complex Network Analysis In Electric Power Systems, Mahmoud Saleh, Yusef Esa, Ahmed Mohamed

Publications and Research

This paper provides a review of the research conducted on complex network analysis (CNA) in electric power systems. Moreover, a new approach is presented to find optimal locations for microgrids (MGs) in electric distribution systems (EDS) utilizing complex network analysis. The optimal placement in this paper points to the location that will result in enhanced grid resilience, reduced power losses and line loading, better voltage stability, and a supply to critical loads during a blackout. The criteria used to point out the optimal placement of the MGs were predicated on the centrality analysis selected from the complex network theory, the …

Financial Sector Development, Economic Growth And Stability, Wenjun Xue

FIU Electronic Theses and Dissertations

My dissertation investigates financial sector development, economic growth and stability through the analysis of Chinese and international evidence. My first chapter is the introduction. The second chapter investigates the effects of Chinese financial and fiscal policies on the Chinese economic recovery in the 2008 economic stimulus Plan, covering the period from the Great Recession to 2014. This chapter explores the effects of the increase in bank credit growth with significant strain of banking health on firm-level output, employment and investment. The results demonstrate that the increase in government expenditure due to the fiscal policies has the significant effects on the …

China's Interest In Africa: Conflict Or Stability?, Tristan X. Di Montenegro

FIU Electronic Theses and Dissertations

China’s increase in economic and military force projection capability has grown substantially since the beginning of the twenty-first century. This rapid evolution, has in turn, triggered a rush for resources in Least Developed Countries, opened up new markets for Chinese-manufactured products, and has frequently been accompanied by an increased Chinese military presence in those nations in which it maintains an economic or industrial presence.

The PRC’s activities in Least Developed Countries, such as those in Africa, have had a direct impact on cultures, regional politics, economies, infrastructure creation, and the environment, yet the complexity of these dynamics has to date …

In Search Of A Forever Home: Raising The Standards For Our Kids, Katarina Barrett, Shelby Marx, Moriah Mueller, Christopher Olson, Michelle Olund-Youngberg

Master of Social Work Student Policy Advocacy Briefs

There are currently 12,167 children in foster care in Minnesota and 32% experienced multiple placements in 2014. Many children are entering foster care due to concerns of child behavior, parental chemical use, or allegations of maltreatment. After an often unexpected separation from their family, children are then expected to adapt to a new foster family with a new set of family norms and rules. Many children are moved between multiple foster homes, or are returned to their caregivers only to be placed back in foster care at a later time. In the wake of media reports revealing stories of child …

Osmotic Versus Conventional Membrane Bioreactors Integrated With Reverse Osmosis For Water Reuse: Biological Stability, Membrane Fouling, And Contaminant Removal, Wenhai Luo, Hop Phan, Ming Xie, Faisal I. Hai, William E. Price, Menachem Elimelech, Long D. Nghiem

Faculty of Engineering and Information Sciences - Papers: Part A

This study systematically compares the performance of osmotic membrane bioreactor - reverse osmosis (OMBR-RO) and conventional membrane bioreactor - reverse osmosis (MBR-RO) for advanced wastewater treatment and water reuse. Both systems achieved effective removal of bulk organic matter and nutrients, and almost complete removal of all 31 trace organic contaminants investigated. They both could produce high quality water suitable for recycling applications. During OMBR-RO operation, salinity build-up in the bioreactor reduced the water flux and negatively impacted the system biological treatment by altering biomass characteristics and microbial community structure. In addition, the elevated salinity also increased soluble microbial products and …

On Multiethnic Schools In Consociational Democracies: A Comparative Analysis Of Brčko District And Bosnia-Herzegovina, Jusuf Šarančić

Lawrence University Honors Projects

The 1995 Dayton Peace Agreement both ended the Bosnian War and created the consociational democracy that exists in Bosnia and Herzegovina to this day. The ethnic autonomy created by the Dayton Agreement has resulted in a frozen conflict between ethnic groups that has manifested itself in the country’s monoethnic education system. This study explores the short-term stability under consociationalism and the long-term stability under a multiethnic education system. Additionally, this study explains the importance of the country’s only multiethnic education system in Brčko District and how it came into existence.

Promoting Corporate Intelligence In Italy To Improve Stability In The Middle East, Antonio Giuseppe Di Pietro

Capstone and Graduation Projects

Most national and international legislative instruments impose a duty to conduct appropriate due diligence when doing business, in order to hold each company accountable for the malicious activities of its partners. This project’s main argument is that formal due diligence is not enough when it comes to preventing corrupt business behavior, particularly when dealing with highly corrupt environments. Starting with an analysis of the Italian legislative efforts, this project demonstrates how the promotion of corporate intelligence into standard business practice could fill the gaps left by due diligence. Emphasis is placed upon the adoption of corporate intelligence among SMEs, given …

Stability Control Of Force-Reflected Nonlinear Multilateral Teleoperation System Under Time-Varying Delays, Da Sun, Fazel Naghdy, Haiping Du

Faculty of Engineering and Information Sciences - Papers: Part A

A novel control algorithm based on the modified wave-variable controllers is proposed to achieve accurate position synchronization and reasonable force tracking of the nonlinear single-master-multiple-slave teleoperation system and simultaneously guarantee overall system's stability in the presence of large time-varying delays. The system stability in different scenarios of human and environment situations has been analyzed. The proposed method is validated through experimental work based on the 3-DOF trilateral teleoperation system consisting of three different manipulators. The experimental results clearly demonstrate the feasibility of the proposed algorithm to achieve high transparency and robust stability in nonlinear single-master-multiple-slave teleoperation system in the presence …

Efficiency And Stability In Large Matching Markets, Yeon-Koo Che, Olivier Tercieux

Cowles Foundation Discussion Papers

We study efficient and stable mechanisms in matching markets when the number of agents is large and individuals’ preferences and priorities are drawn randomly. When agents’ preferences are uncorrelated, then both efficiency and stability can be achieved in an asymptotic sense via standard mechanisms such as deferred acceptance and top trading cycles. When agents’ preferences are correlated over objects, however, these mechanisms are either inefficient or unstable even in an asymptotic sense. We propose a variant of deferred acceptance that is asymptotically efficient, asymptotically stable and asymptotically incentive compatible. This new mechanism performs well in a counterfactual calibration based on …

Inference Under Stability Of Risk Preferences, Levon Barseghyan, Francesca Molinari, Joshua C. Teitelbaum

Georgetown Law Faculty Publications and Other Works

We leverage the assumption that preferences are stable across contexts to partially identify and conduct inference on the parameters of a structural model of risky choice. Working with data on households' deductible choices across three lines of insurance coverage and a model that nests expected utility theory plus a range of non-expected utility models, we perform a revealed preference analysis that yields household-specific bounds on the model parameters. We then impose stability and other structural assumptions to tighten the bounds, and we explore what we can learn about households' risk preferences from the intervals defined by the bounds. We further …

Thermal Stability And Properties Of Deformation-Processed Cu-Fe In Situ Composites, Keming Liu, Zhengyi Jiang, Jingwei Zhao, Jin Zou, Lei Lu, Deping Lu

Faculty of Engineering and Information Sciences - Papers: Part A

This paper investigated the thermal stability, tensile strength, and conductivity of deformation-processed Cu-14Fe in situ composites produced by thermo-mechanical processing. The thermal stability was analyzed using scanning electronic microscope and transmission electron microscope. The tensile strength and conductivity were evaluated using tensile-testing machine and micro-ohmmeter, respectively. The Fe fibers in the deformation-processed Cu-14Fe in situ composites undergo edge recession, longitudinal splitting, cylinderization, break-up, and spheroidization during the heat treatment. The Cu matrix experiences recovery, recrystallization, and precipitation phase transition. The tensile strength and conductivity first increase with increasing temperature of heat treatment, reach peak values at different temperatures, and then …

A Semi-Analytical Analysis Of The Stability Of The Reversible Selkov Model, Khaled. Al Noufaey, Timothy R. Marchant, Maureen P. Edwards

Faculty of Engineering and Information Sciences - Papers: Part A

Semi-analytical solutions for the reversible Selkov model are developed and used to investigate its static and dynamic stability. A one-dimensional reaction-diffusion cell is considered with all steps of the Selkov reaction modeled. A coupled set of four partial differential equations is obtained for the precursor, reactant, autocatalyst and final product concentrations. The Galerkin method is applied to approximate the spatial structure of the concentrations to obtain a lower-order, ordinary differential equation model, as an approximation to the governing partial differential equations. The semi-analytical model is analysed to obtain steady-state solutions, bifurcation diagrams and parameter maps in which the different types …

Stability Of Carbon Nanotube Yarn Biofuel Cell In Human Body Fluid, Cheong Hoon Kwon, Jae Ah Lee, Young-Bong Choi, Hyug-Han Kim, Geoffrey M. Spinks, Marcio D. Lima, Ray H. Baughman, Seon Jeong Kim

Faculty of Engineering and Information Sciences - Papers: Part A

High performance with stability, easy-handling electrodes, and biofluid-flow controllable system with mechanical strength of the biofuel cell can be considered as the critical issues for future human body implant. These three challenges are sufficiently considered by using the effective platform regarding the high surface area from multi-walled carbon nanotube-conducting polymer with poly(3,4-ethylenedioxythiophene), and size/shape dependent flexible yarn electrodes for the implantation of biofuel cell. High power biofuel cell of mW cm-2 range in physiological condition (low glucose-containing phosphate buffered saline solution and human blood serum) controlling the stirring degree is also first demonstrated for future implantation in this study. Biofuel …

Stability Enhancement Of Magnetic Levitation Ball System With Two Controlled Electomagnets, Hai Huang, Haiping Du, Weihua Li

Faculty of Engineering and Information Sciences - Papers: Part A

Magnetic levitation ball system is a highly nonlinear and unstable system. If the system is linearised at the equilibrium point, the achievable balance range of the magnetically levitated ball is very short with one electromagnet. This paper presents an improved magnetic levitation ball system, that contains two electromagnets, where one electromagnet is set above the magnetic ball for pulling, and another one is set under the magnetic ball for pushing. In addition, this paper applies a 2-DOF (degree-of-freedom) PID (proportional-integral-derivative) controller instead of 1-DOF PID for the control of the two electromagnets so that they can work corporately to make …