Matching Items (730)
Description
Carbon lacks an extended polyanionic chemistry which appears restricted to carbides with C4-, C22-, and C34- moieties. The most common dimeric anion of carbon atoms is C22- with a triple bond between the two carbon atoms. Compounds containing the dicarbide anion can be regarded as salts of acetylene C2H2 (ethyne) and hence are also called acetylides or ethynides. Inspired by the fact that molecular acetylene undergoes pressure induced polymerization to polyacetylene above 3.5 GPa, it is of particular interest to study the effect of pressure on the crystal structures of acetylides as well. In this work, pressure induced polymerization was attempted with two simple metal acetylides, Li2C2 and CaC2. Li2C2 and CaC2 have been synthesized by a direct reaction of the elements at 800ºC and 1200ºC, respectively. Initial high pressure investigations were performed inside Diamond anvil cell (DAC) at room temperature and in situ Raman spectroscopic measurement were carried out up to 30 GPa. Near 15 GPa, Li2C2 undergoes a transition into a high pressure acetylide phase and around 25 GPa this phase turns amorphous. CaC2 is polymorphic at ambient pressure. Monoclinic CaC2-II does not show stability at pressures above 1 GPa. Tetragonal CaC2-I is stable up to at least 12 GPa above which possibly a pressure-induced distortion occurs. At around 18 GPa, CaC2 turns amorphous. In a subsequent series of experiments both Li2C2 and CaC2 were compressed to 10 GPa in a multi anvil (MA) device and heated to temperatures between 300 and 1100oC for Li2C2, and 300°C to 900°C for CaC2. The recovered products were analyzed by PXRD and Raman spectroscopy. It has been observed that reactions at temperature higher than 900°C were very difficult to control and hitherto only short reaction times could be applied. For Li2C2, a new phase, free of starting material was found at 1100°C. Both the PXRD patterns and Raman spectra of products at 1100oC could not be matched to known forms of carbon or carbides. For CaC2 new reflections in PXRD were visible at 900ºC with the starting material phase.
ContributorsKonar, Sumit (Author) / Häussermann, Ulrich (Thesis advisor) / Seo, Dong (Thesis advisor) / Steimle, Timothy (Committee member) / Wolf, George (Committee member) / Arizona State University (Publisher)
Created2012
Description
This dissertation seeks to show that the fate of emerging democracies is largely dependent upon the strategic behaviors of political militaries and their coup potential. Given the known issue of democratization's temporarily destabilizing effects, it first examines if such effects makes states vulnerable to coups. It finds clear evidence on democratization's destabilizing effects on coup risk. Such evidence is used to shed new light on the literature about the armed forces and coups in emerging democracies. To explain variation in the military's responses to democratization and consolidation against coup threats, it argues that how the armed forces were organized and controlled during the authoritarian periods influences whether emerging democracies are able to consolidate against coup risk. Second, it explores the declining coup risk and the trilateral relationship between Western democracy promotion, coup risk, and election violence in recently emerging electoral regimes, the so-called "illiberal democracies." It argues that vulnerability to Western leverage, coupled with an emphasis on multiparty elections, creates a political moral hazard problem for incumbents, permitting them to commit electoral violence during the emergence of mass electoral politics.
ContributorsCho, Yong Ouk (Author) / Sheldon, Simon (Thesis advisor) / David, Siroky (Committee member) / Wood, Reed (Committee member) / Arizona State University (Publisher)
Created2015
Description
What explains why governments and militaries pursue accountability against some human rights violations committed by members of their armed forces during ongoing conflicts, but not other violations? Further, what are the consequences of such prosecutions for their military and governmental objectives? The theory put forth by this study suggests that rather than only the natural outcome of strong rule of law, domestic prosecutions within a state’s security apparatus represents a strategic choice made by political and military actors. I employ a strategic actor approach to the pursuit of accountability, suggesting that the likelihood of accountability increases when elites perceive they will gain politically or militarily from such actions. I investigate these claims using both qualitative and quantitative methods in a comparative study across the United States and the United Kingdom. This project contributes to interdisciplinary scholarly research relevant to human rights studies, human rights law, political science, democratic state-building, democratic governance, elite decision making, counter-insurgency, protests, international sanctions, and conflict resolution. Particularly, this dissertation speaks to the intersection of strategy and law, or “lawfare” a method of warfare where law is used as means of realizing a military objective (Dunlap 2001). It provides generalizable results extending well beyond the cases analyzed. Thus, the results of this project will interest those dealing with questions relating to legitimacy, human rights, and elite decision making throughout the democratic world.
ContributorsSimmons, Alan James (Author) / Wood, Reed (Thesis advisor) / Peskin, Victor (Thesis advisor) / Lake, Milli (Committee member) / Arizona State University (Publisher)
Created2018
Description
This dissertation proposes a theory of authoritarian control of the armed forces using the economic theory of the firm. To establish a “master-servant” relationship, an organization structures governance as a long-term contractual agreement to mitigate the vulnerabilities associated with uncertainty and bilateral dependency. The bargaining power for civilian and military actors entering a contractual relationship is assessed by two dimensions: the negotiated political property rights and the credible guarantee of those rights. These dimensions outline four civil-military institutional arrangements or army types (cartel, cadre, entrepreneur, and patron armies) in an authoritarian system. In the cycle of repression, the more the dictator relies on the military for repression to stay in office, the more negotiated political property rights obtained by the military; and the more rights obtained by the military the less civilian control. Thus, the dependence on coercive violence entails a paradox for the dictator—the agents empowered to manage violence are also empowered to act against the regime. To minimize this threat, the dictator may choose to default on the political bargain through coup-proofing strategies at the cost to the regime’s credibility and reputation, later impacting a military’s decision to defend, defect, or coup during times of crisis. The cycle of repression captures the various stages in the life-cycle of the political contract between the regime and the armed forces providing insights into institutional changes governing the relationship. As such, this project furthers our understanding of the complexities of authoritarian civil–military relations and contributes conceptual tools for future studies.
ContributorsZerba, Shaio Hui (Author) / Thies, Cameron (Thesis advisor) / Wood, Reed (Committee member) / Shair-Rosenfield, Sarah (Committee member) / Arizona State University (Publisher)
Created2019
Description
ABSTRACT
Although the US government has been using remotely piloted aircraft (RPA), more commonly referred to as drones, to conduct military strikes against terrorists and insurgents since at least 2001, only around 2011 did media outlets and polling organizations began assessing the attitudes of Americans towards the use of drones as a weapon of war. Initially, public support for drone strikes was robust with nearly 70 percent of Americans expressing approval. As the discussion of drone strikes intensified however, public support declined over 10 percentage points.
Only a handful of studies have examined public opinion and drone strikes, and all have focused exclusively on explaining support. This study seeks to fill this gap in the literature and explain opposition to drone strikes. The primary argument put forth in this dissertation is that people’s beliefs determine their opinions, and their morality determines their beliefs. Although independent opinion formation is often considered a cognitive process, I argue that, at least in the case of drone strikes, the opinion formation process is largely an affective one.
By examining media coverage and elite discourse surrounding drone strikes, I isolate three narratives which I believe communicate certain messages to the public regarding drone strikes. I argue that the messages produced by elite discourse and disseminated by the media to the public are only influential on opinion formation once they have been converted to beliefs. I further argue that conversion of message to belief is largely dependent on individual moral attitudes.
To test my arguments, I conduct a survey-experiment using subjects recruited from Arizona State University’s School of Politics and Global Studies student subject pool. My research findings lead to two key conclusions. First, opposition to drone strikes is largely the product of the belief(s) that drone strikes are not necessary for protecting the United States from terrorist attack, and that drone strikes kill more civilians than do strikes from conventional aircraft. Second, whether an individual expresses support or opposition to drone strikes, moral attitudes are a relatively good predictor of both beliefs and disposition.
Although the US government has been using remotely piloted aircraft (RPA), more commonly referred to as drones, to conduct military strikes against terrorists and insurgents since at least 2001, only around 2011 did media outlets and polling organizations began assessing the attitudes of Americans towards the use of drones as a weapon of war. Initially, public support for drone strikes was robust with nearly 70 percent of Americans expressing approval. As the discussion of drone strikes intensified however, public support declined over 10 percentage points.
Only a handful of studies have examined public opinion and drone strikes, and all have focused exclusively on explaining support. This study seeks to fill this gap in the literature and explain opposition to drone strikes. The primary argument put forth in this dissertation is that people’s beliefs determine their opinions, and their morality determines their beliefs. Although independent opinion formation is often considered a cognitive process, I argue that, at least in the case of drone strikes, the opinion formation process is largely an affective one.
By examining media coverage and elite discourse surrounding drone strikes, I isolate three narratives which I believe communicate certain messages to the public regarding drone strikes. I argue that the messages produced by elite discourse and disseminated by the media to the public are only influential on opinion formation once they have been converted to beliefs. I further argue that conversion of message to belief is largely dependent on individual moral attitudes.
To test my arguments, I conduct a survey-experiment using subjects recruited from Arizona State University’s School of Politics and Global Studies student subject pool. My research findings lead to two key conclusions. First, opposition to drone strikes is largely the product of the belief(s) that drone strikes are not necessary for protecting the United States from terrorist attack, and that drone strikes kill more civilians than do strikes from conventional aircraft. Second, whether an individual expresses support or opposition to drone strikes, moral attitudes are a relatively good predictor of both beliefs and disposition.
ContributorsDavis, Christopher Todd (Author) / Wood, Reed (Thesis advisor) / Fridkin, Kim (Committee member) / Kubiak, Jeffrey (Committee member) / Wright, Thorin (Committee member) / Arizona State University (Publisher)
Created2019
Description
This study asks the question: does gender-based discrimination exists within Arizona State University's Army Reserve Officer Training Corps (ROTC), and if so, what are the effects of such discrimination? Within this study, discrimination is defined as: the treatment or consideration of, or making a distinction in favor of or against, a person or thing based on the group, class, or category to which that person or thing belongs, rather than on individual merit. The researcher predicted that this study would show that gender-based discrimination operates within the masculine military culture of Army ROTC at ASU, resulting from women's hyper-visibility and evidenced by their lack of positive recognition and disbelief in having a voice in the program. These expectations were based on background research claiming that the token status of women in military roles causes them to be more heavily scrutinized, and they consequentially try to attain success by adapting to the masculine military culture by which they are constantly measured. For the purposes of this study, success is defined as: the attainment of wealth, favor, or eminence . This study relies on exploratory interviews and an online survey conducted with male and female Army ROTC cadets of all grade levels at Arizona State University. The interviews and survey collected demographic information and perspectives on individual experiences to establish an understanding of privilege and marginalization within the program. These results do support the prediction that women in Army ROTC at ASU face discrimination based on their unique visibility and lack of positive recognition and voice in the program. Likewise, the survey results indicate that race also has a significant impact on one's experience in Army ROTC, which is discussed later in this study in regard to needs for future research. ASU Army ROTC includes approximately 100 cadets, and approximately 30-40 of those cadets participated in this study. Additionally, the University of Arizona and the Northern Arizona University Army ROTC programs were invited to participate in this study and declined to do so, which would have offered a greater sample population. Nonetheless, the results of this research will be useful for analysis and further discussion of gender-equality in Army ROTC at Arizona State University.
ContributorsAllemang, Lindsey Ann (Author) / Wood, Reed (Thesis director) / Switzer, Heather (Committee member) / School of Politics and Global Studies (Contributor) / School of Social Transformation (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Genocide studies have traditionally focused on the perpetrator’s intent to eradicate a particular identity-based group, using the Holocaust as their model and point of comparison. Although some aspects of the Holocaust were undoubtedly unique, recent scholars have sought to challenge the notion that it was a singular phenomenon. Instead, they draw attention to a recurring pattern of genocidal events throughout history by shifting the focus from intent to structure. One particular branch of scholars seeks to connect the ideology and tactics of imperialism with certain genocidal events. These anti-imperialist genocide scholars concede that their model cannot account for all genocides, but still claim that it creates meaningful connections between genocides committed by Western colonialist powers and those that have occurred in a neoimperialist world order shaped according to Western interests. The latter includes genocides in postcolonial states, which these scholars believe were shaped by the scars of their colonial past, as well as genocides in which imperial hegemons assisted local perpetrators. Imperialist and former colonial powers have contributed meaningfully to all of these kinds of genocides, yet their contributions have largely been ignored due to their own influence on the creation of the current international order. Incorporating the anti-imperialist perspective into the core doctrine of genocide studies may lead to breakthroughs in areas of related policy and practice, such as prevention and accountability.
ContributorsParker, Ashleigh Mae (Author) / Thies, Cameron (Thesis director) / Sivak, Henry (Committee member) / School of Politics and Global Studies (Contributor) / School of Social Transformation (Contributor) / Department of English (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
About one in ten refugees from the American Revolution was African-descended, and unlike many white Loyalists fleeing war in the thirteen mainland North American colonies, black Loyalists were people without a country. Most were fleeing slavery in Virginia or the Carolinas, yet not fully able to claim to be British subjects, despite many heeding the call to join British forces. Among the 40,000 Loyalists who departed, around 3,500 black Loyalists evacuated from the newly founded United States between the years of 1776 and 1785. I hope to evaluate the movement patterns and thought process behind this particular group with what choices they ultimately had after the war using Dunmore’s Proclamation as a means to freedom. These black Loyalists faced the difficult decision in choosing what identity they would side with once they left. These former slaves ultimately had to choose between becoming forced migrants with the losing side of the war or staying with the winning side of the war as people bound by chains. Although there were a multitude of fascinating tales that could be told through the lens of these black Loyalists, one particular family caught my eye within my research. This story is the journey of the Fortune family who chose to run away from American slavery to migrate to Nova Scotia. Their story will grant me access to analyze the extreme discrimination families met as they fled, the contempt the new colonies felt against them, as well as the evolution of their societal roles as some of these immigrants integrated into their new country and became accepted as respected individuals. Furthermore, their tale aided me in understanding what caused some emigrant black Loyalists to stay in Nova Scotia despite the hardships they faced as outsiders who were unwelcome from the perspective of native white Nova Scotians.
ContributorsNanez-Krause, Michael L (Author) / Schermerhorn, Calvin J. (Thesis director) / Barnes, Andrew (Committee member) / Historical, Philosophical & Religious Studies (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
As of 2019, 30 US states have adopted abortion-specific informed consent laws that require state health departments to develop and disseminate written informational materials to patients seeking an abortion. Abortion is the only medical procedure for which states dictate the content of informed consent counseling. State abortion counseling materials have been criticized for containing inaccurate and misleading information, but overall, informed consent laws for abortion do not often receive national attention. The objective of this project was to determine the importance of informed consent laws to achieving the larger goal of dismantling the right to abortion. I found that informed consent counseling materials in most states contain a full timeline of fetal development, along with information about the risks of abortion, the risks of childbirth, and alternatives to abortion. In addition, informed consent laws for abortion are based on model legislation called the “Women’s Right to Know Act” developed by Americans United for Life (AUL). AUL calls itself the legal architect of the pro-life movement and works to pass laws at the state level that incrementally restrict abortion access so that it gradually becomes more difficult to exercise the right to abortion established by Roe v. Wade. The “Women’s Right to Know Act” is part of a larger package of model legislation called the “Women’s Protection Project,” a cluster of laws that place restrictions on abortion providers, purportedly to protect women, but actually to decrease abortion access. “Women’s Right to Know” counseling laws do not directly deny access to abortion, but they do reinforce key ideas important to the anti-abortion movement, like the concept of fetal personhood, distrust in medical professionals, the belief that pregnant people cannot be fully autonomous individuals, and the belief that abortion is not an ordinary medical procedure and requires special government oversight. “Women’s Right to Know” laws use the language of informed consent and the purported goal of protecting women to legitimize those ideas, and in doing so, they significantly undermine the right to abortion. The threat to abortion rights posed by laws like the “Women’s Right to Know” laws indicates the need to reevaluate and strengthen our ethical defense of the right to abortion.
ContributorsVenkatraman, Richa (Author) / Maienschein, Jane (Thesis director) / Brian, Jennifer (Thesis director) / Abboud, Carolina (Committee member) / Historical, Philosophical & Religious Studies (Contributor) / School of Life Sciences (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
Political polarization is the coalescence of political parties -- and the individuals of which parties are composed -- around opposing ends of the ideological spectrum. Political parties in the United States have always been divided, however, in recent years this division has only intensified. Recently, polarization has also wound its way to the Supreme Court and the nomination processes of justices to the Court. This paper examines how prevalent polarization in the Supreme Court nomination process has become by looking specifically at the failed nomination of Judge Merrick Garland and the confirmations of now-Justices Neil Gorsuch and Brett Kavanaugh. This is accomplished by comparing the ideologies and qualifications of the three most recent nominees to those of previous nominees, as well as analysing the ideological composition of the Senate at the times of the individual nominations.
ContributorsJoss, Jacob (Author) / Hoekstra, Valerie (Thesis director) / Critchlow, Donald (Committee member) / Computer Science and Engineering Program (Contributor) / School of Politics and Global Studies (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05