The \u27Nayirah\u27 Effect: The Role of Target States’ Human Rights Violations and Victims’ Emotive Images in War Support

When a target state violates human rights, how does the identity of the victims and the presence of emotive imagery affect the level of public support for interventionist war? How does the perceived race and gender of victims affect this relationship? We employ a survey experiment to study whether and when information about a target state’s human rights violations affects public attitudes toward the use of force. Specifically, we manipulate a fictional victim’s race (light-skinned vs. dark-skinned) and gender (male vs. female), and explore how these variations affect support for interventionist war. In our experiment, we find that war support is stronger when a target state violates human rights. More importantly, public support for intervention was affected by the characteristics of the victims of human rights abuse. Support for interventionist war was found to be greatest among those participants who viewed images of light-skinned or female victims, though a white male image was found to me most impactful. Our causal mediation analysis showed that subjects viewing light-skinned or female images had less concern about the costs of intervention. Our findings suggest that the racial and gender characteristics of the victims of human rights abuse plays a substantial role in determining individual support for war

Sleeping with the enemy: winning coalitions against within-group power transitions and unstable civil war settlements

In many civil wars, each warring side often consists of multiple internal groups. In such a case, a leader's political survival may be threatened not only by fighting with the enemy but also by power competition among in-groups. Within-group power transitions refer to a situation in which a dominant group is overtaken by a challenger group on the same warring side. In this paper, I argue that the risk of within-group power transitions creates an incentive to negotiate peace with an enemy side. Assuming recruiting enough supporters is the sine qua non of a dominant group's status, attracting extra supporters would provide insurance against internal power transitions. Given the internal power competition, negotiated settlements help a dominant leader save more resources to recruit additional supporters by minimizing the uncertainty from fighting with an enemy. Thus, negotiated settlements are beneficial to control internal rivals. A leader's consideration for such a strategic settlement, however, inevitably entails the risk of the conflict recurring

Strategies of Pastoral Leadership for Resolving Conflicts in Two Korean American Churches around Los Angeles

The purpose of this project is to understand Paul’s leadership principles for resolving conflict in churches and to apply them to Korean American churches. The project will examine Paul’s leadership principles for solving church conflicts found in 1 and 2 Corinthians, and Ephesians and deal with the application of existing conflict theories

Outdoor Localization Using BLE RSSI and Accessible Pedestrian Signals for the Visually Impaired at Intersections

One of the major challenges for blind and visually impaired (BVI) people is traveling safely to cross intersections on foot. Many countries are now generating audible signals at crossings for visually impaired people to help with this problem. However, these accessible pedestrian signals can result in confusion for visually impaired people as they do not know which signal must be interpreted for traveling multiple crosses in complex road architecture. To solve this problem, we propose an assistive system called CAS (Crossing Assistance System) which extends the principle of the BLE (Bluetooth Low Energy) RSSI (Received Signal Strength Indicator) signal for outdoor and indoor location tracking and overcomes the intrinsic limitation of outdoor noise to enable us to locate the user effectively. We installed the system on a real-world intersection and collected a set of data for demonstrating the feasibility of outdoor RSSI tracking in a series of two studies. In the first study, our goal was to show the feasibility of using outdoor RSSI on the localization of four zones. We used a k-nearest neighbors (kNN) method and showed it led to 99.8% accuracy. In the second study, we extended our work to a more complex setup with nine zones, evaluated both the kNN and an additional method, a Support Vector Machine (SVM) with various RSSI features for classification. We found that the SVM performed best using the RSSI average, standard deviation, median, interquartile range (IQR) of the RSSI over a 5 s window. The best method can localize people with 97.7% accuracy. We conclude this paper by discussing how our system can impact navigation for BVI users in outdoor and indoor setups and what are the implications of these findings on the design of both wearable and traffic assistive technology for blind pedestrian navigation

The overexpression of TDP-43 in astrocytes causes neurodegeneration via a PTP1B-mediated inflammatory response

Background: Cytoplasmic inclusions of transactive response DNA binding protein of 43 kDa (TDP-43) in neurons and astrocytes are a feature of some neurodegenerative diseases, such as frontotemporal lobar degeneration with TDP-43 (FTLD-TDP) and amyotrophic lateral sclerosis (ALS). However, the role of TDP-43 in astrocyte pathology remains largely unknown. Methods: To investigate whether TDP-43 overexpression in primary astrocytes could induce inflammation, we transfected primary astrocytes with plasmids encoding Gfp or TDP-43-Gfp. The inflammatory response and upregulation of PTP1B in transfected cells were examined using quantitative RT-PCR and immunoblot analysis. Neurotoxicity was analysed in a transwell coculture system of primary cortical neurons with astrocytes and cultured neurons treated with astrocyte-conditioned medium (ACM). We also examined the lifespan, performed climbing assays and analysed immunohistochemical data in pan-glial TDP-43-expressing flies in the presence or absence of a Ptp61f RNAi transgene. Results: PTP1B inhibition suppressed TDP-43-induced secretion of inflammatory cytokines (interleukin 1 beta (IL-1β), interleukin 6 (IL-6) and tumour necrosis factor alpha (TNF-α)) in primary astrocytes. Using a neuron-astrocyte coculture system and astrocyte-conditioned media treatment, we demonstrated that PTP1B inhibition attenuated neuronal death and mitochondrial dysfunction caused by overexpression of TDP-43 in astrocytes. In addition, neuromuscular junction (NMJ) defects, a shortened lifespan, inflammation and climbing defects caused by pan-glial overexpression of TDP-43 were significantly rescued by downregulation of ptp61f (the Drosophila homologue of PTP1B) in flies. Conclusions: These results indicate that PTP1B inhibition mitigates the neuronal toxicity caused by TDP-43-induced inflammation in mammalian astrocytes and Drosophila glial cells. © 2020, The Author(s).1

CIVIL WAR SETTLEMENTS AND COMBATANTS’ BEHAVIORS: STRATEGY, PERCEPTION, AND REPUTATION

Three projects in my dissertation focus on the termination of internal conflicts based on three critical factors: a combatant’s bargaining strategy, perceptions of relative capabilities, and reputation for toughness. My dissertation aims to provide the relevant theoretical framework to understand war termination beyond the simple two-party bargaining context. The first project focuses on the government’s strategic use of peace agreements. The first project suggests that peace can also be designed strategically to create a better bargain in the near future by changing the current power balance, and thus the timing and nature of peace is not solely a function of overcoming current barriers to successful bargaining. As long as the government has no overwhelming capability to defeat all rebel groups simultaneously, it needs to keep multiple rebel groups as divided as possible. This strategic partial peace helps to deter multiple rebel groups from collaborating in the battlefield and increases the chances of victory against non-signatories. The second project deals with combatants’ perceptions of relative capabilities. While bargaining theories of war suggest that war ends when combatants share a similar perception about their relative capabilities, combatants’ perceptions about relative capabilities are not often homogeneous. While focusing on information problems, this paper examines when a rebel group underestimates the government’s supremacy in relative capabilities and how this heterogeneous perception about the power gap influences negotiated settlements. The third project deals with the tension between different types of reputations in the context of civil wars: 1) a reputation for resolve and 2) a reputation for keeping human rights standards. In the context of civil wars, the use of indiscriminate violence by the government is costly, and as such, it signals the government’s toughness (or resolve) to rebel groups. I argue that the rebels are more likely to accept the government’s offer when the government recently engaged in indiscriminate violence against civilians during the conflict. This effect, however, is conditional on the government’s international human rights reputation; suggesting that rebel groups interpret this violence as a signal particularly when the government does not have a penchant for attacking civilians in general

Employee treatment and the choice of liquidity: lines of credit versus cash holdings

By examining the relation between the employee welfare index and the choice between lines of credit (LC) and cash holdings, we provide empirical findings consistent with monitored liquidity insurance, agency, and tax theories. There is a negative relation between the LC-to-cash ratio and the employee treatment index, which is more pronounced for firms with large intangible assets. Additionally, this negative relation is observed only in low agency firms, which is consistent with the prediction of agency theory of cash holdings. Firms increase LC to meet future investment opportunities rather than increasing cash holdings when their marginal tax rates are high.clos

Does national culture affect international corporate cash holdings?

The current literature frequently examines the effects of shareholder rights protection on corporate cash holdings in the context of agency theory. In this study, we show that national culture influences corporate managers' cash holding behavior beyond the effects of corporate governance and financial market developments in each country through the perception of agency costs and value of financial flexibility. Using Hofstede's cultural dimension indices, we find that corporations hold larger cash and liquid balances in countries where the people tend to avoid uncertainty more, are culturally more masculine, and have longer term orientation.Cash holdings Culture Corporate governance