Matching Items (11)
Description
The effects of a long-term combat deployment on a soldier's physical fitness are not well understood. In active duty soldiers, combat deployment reduced physical fitness compared to pre-deployment status, but no similar research has been performed on Army National Guard soldiers. This study is the first to identify physical fitness changes in Arizona National Guard (AZNG) soldiers following deployment to a combat zone and to assess the relationships between physical fitness and non-combat injuries and illness (NCII). Sixty soldiers from the Arizona National Guard (AZNG) completed a battery of physical fitness tests prior to deployment and within 1-7 days of returning from a 12-month deployment to Iraq. Pre and post-deployment measures assessed body composition (Bod Pod), muscular strength (1RM bench press, back-squat), muscular endurance (push-up, sit-up), power (Wingate cycle test), cardiorespiratory fitness (treadmill run to VO2 peak), and flexibility (sit-and-reach, trunk extension, shoulder elevation). Post deployment, medical records were reviewed by a blinded researcher and inventoried for NCII that occurred during deployment. Data were analyzed for changes between pre and post-deployment physical fitness. Relationships between fitness and utilization of medical resources for NCII were then determined. Significant declines were noted in mean cardiorespiratory fitness (-10.8%) and trunk flexibility (-6.7%). Significant improvements were seen in mean level of fat mass (-11.1%), relative strength (bench press, 10.2%, back-squat 14.2%) and muscular endurance (push-up 16.4%, sit-up 11.0%). Significant (p < 0.05) negative correlations were detected between percentage change in fat mass and gastrointestinal visits (r = -0.37); sit-and-reach and lower extremity visits (r= -0.33); shoulder elevation and upper extremity visits (r= -0.36); and cardiorespiratory fitness and back visits (r= -0.31); as well as behavioral health visits (r= -0.28). Cardiorespiratory fitness changes were grouped into tertiles. Those who lost the greatest fitness had significantly greater number of NCII visits (8.0 v 3.1 v 2.6, p = .03). These data indicate a relationship between the decline in cardiorespiratory fitness and an overall increase in utilization of medical resources. The results may provide incentive to military leaders to ensure that soldiers maintain their cardiorespiratory fitness throughout the extent of their deployment.
ContributorsWarr, Bradley (Author) / Swan, Pamela (Thesis advisor) / Lee, Chong (Committee member) / Campbell, Kathryn (Committee member) / Erickson, Steven (Committee member) / Alvar, Brent (Committee member) / Arizona State University (Publisher)
Created2011
Description
Counterinsurgency (COIN) is a long process that even great powers struggle with. Nevertheless, South Korea as a middle power was successful with COINs in Vietnam and Iraq. What were the drivers for the Republic of Korea (ROK) military's success? This dissertation maintains that the unusual nature of missions coupled with political/socio-cultural advantages are sufficient conditions for success of the middle power COIN. COIN missions are seen as unusual to middle powers. A rare mission stimulates military forces to fight harder because they recognize this mission as an opportunity to increase their national prestige. COIN mission success is also more probable for middle powers because their forces make the best of their country's political/socio-cultural advantages. The ROK military's COINs are optimal cases to test these hypotheses. The ROK military's COIN in Vietnam was an extremely rare mission, which increased its enthusiasm. This enthusiasm was converted into appropriate capabilities. By identifying battleground dynamics, the ROK forces initially chose an enemy-oriented approach based upon the method of company-led tactical base, and then later introduced a population-led method. South Korea's political/socio-cultural advantages also contributed to its military success in Vietnam. The Confucius culture that South Koreans and Vietnamese shared allowed the ROK forces to win the hearts and minds of the Vietnamese population. The mission in Iraq was also a rare and important one for national prestige. Accordingly, South Korean forces were equipped with pride and were enthusiastic about missions in Arbil. They changed their organization from a rigid one to a more flexible one by strengthening civil-military units. The ROK military possessed the ability to choose a population-centric approach. South Korea's political and cultural climate also served as an advantage to accomplish COIN in Iraq. The culture of Jung allowed ROK soldiers to sincerely help the local Iraqis. This project contributes to developing a theory of the middle power COIN. The findings also generate security policy implications of how to deal with contingent situations led by the collapse of the North Korean regime and how to redefine the ROK military strategy for the future.
ContributorsBan, Kil-Joo (Author) / Simon, Sheldon (Thesis advisor) / Gortzak, Yoav (Committee member) / Mackinnon, Stephen (Committee member) / Arizona State University (Publisher)
Created2011
Description
American families have been coming to South Korea accompanying active duty service members or Embassy employees since before the Korean War. While their numbers were originally smaller, they continue to increase as South Korean assignments undergo "tour normalization", a transition from a location intended for service members to come alone for one year to a location where service members come accompanied by their family and stay for longer periods of times. The U.S. maintains a large presence in South Korea as a deterrence against possible threats from North Korea. Despite establishment of an armistice at the conclusion of the Korean War, a constant state of potential threat was created. This paper will examine what affect the recent rise in tension between North Korea and South Korea has on the American children living in South Korea with their active duty service member parent(s).
ContributorsWoodley, Elizabeth Saucedo (Author) / Margolis, Eric (Thesis advisor) / Romero, Mary (Committee member) / Appleton, Nicholas (Committee member) / Arizona State University (Publisher)
Created2012
Description
Separation from a loved one is a highly stressful event. The range and intensity of emotions accompanying such a separation arguably are amplified when one's spouse deploys. This thesis examines at-home spouses (AHSs) of deployed military and how emotion, marital satisfaction, and communication are impacted throughout the deployment cycle. Additionally, I explore technology as a possible coping mechanism to help AHSs adapt and overcome stressfulness of deployment. One hundred sixty-six married females with a partner currently deployed, anticipating deployment, or recently returned from deployment completed an on-line survey. It was predicted AHSs would experience specific emotions during each phase, categorized as "anticipatory," (e.g., anger, worry) "absence" (e.g., lonely, sad) or "post" (e.g., happiness, relief); marital satisfaction also was predicted to be higher among spouses whose partner recently returned from deployment versus was deployed or anticipating deployment. Data showed AHSs whose partner was anticipating or currently deployed reported more "anticipatory" and "absence" emotions than AHSs with a recently returned partner. The former two groups did not differ in these emotions. AHSs with a recently returned partner reported more "post" emotions than the other two groups. Marital satisfaction did not differ based on deployment status. It was also predicted that among AHSs with a currently deployed partner, less negative emotion upon deployment would be associated with more frequent communication during deployment. Data showed AHSs who reported less negative emotion upon deployment engaged in more frequent communication with their deployed partner. Lastly, I predicted AHSs whose partners are currently deployed and who prefer modes of communication allowing direct contact (e.g., Skype) will experience less negative emotions than AHSs who prefer indirect contact (e.g., e-mail). Data showed reports of negative emotion did not differ based on preference for direct versus indirect communication. Therefore, negative emotions may develop and persist before and during deployment, but when the partner returns home, spouses do experience a rebound of positive emotions. Additionally, emotions at the time of deployment may be useful in predicting spouses' communication frequency during deployment. Findings aim to provide knowledge of family life during separation and explore technology as a possible coping mechanism for AHSs.
ContributorsPowell, Katrina D (Author) / Roberts, Nicole A. (Thesis advisor) / Burleson, Mary H. (Committee member) / Hall, Deborah (Committee member) / Arizona State University (Publisher)
Created2011
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
Unmanned aerial vehicles have received increased attention in the last decade due to their versatility, as well as the availability of inexpensive sensors (e.g. GPS, IMU) for their navigation and control. Multirotor vehicles, specifically quadrotors, have formed a fast growing field in robotics, with the range of applications spanning from surveil- lance and reconnaissance to agriculture and large area mapping. Although in most applications single quadrotors are used, there is an increasing interest in architectures controlling multiple quadrotors executing a collaborative task. This thesis introduces a new concept of control involving more than one quadrotors, according to which two quadrotors can be physically coupled in mid-flight. This concept equips the quadro- tors with new capabilities, e.g. increased payload or pursuit and capturing of other quadrotors. A comprehensive simulation of the approach is built to simulate coupled quadrotors. The dynamics and modeling of the coupled system is presented together with a discussion regarding the coupling mechanism, impact modeling and additional considerations that have been investigated. Simulation results are presented for cases of static coupling as well as enemy quadrotor pursuit and capture, together with an analysis of control methodology and gain tuning. Practical implementations are introduced as results show the feasibility of this design.
ContributorsLarsson, Daniel (Author) / Artemiadis, Panagiotis (Thesis advisor) / Marvi, Hamidreza (Committee member) / Berman, Spring (Committee member) / Arizona State University (Publisher)
Created2016
Description
This qualitative study examined one perennial research question: What lessons from the works of Machiavelli can be taken into consideration to improve U.S. civil-military relations? A case for looking at Machiavelli’s works for solutions to improve military relations off the battlefield is established. This research found two primary themes within the realm of civil-military relations: civilian control of the military and the military doctrine and practices. The researcher examined and analyzed multiple forms of data, including the writings of Machiavelli, military policies, articles, reports from the department of defense, video recordings of interviews, legislation, and historical documents. The researcher analyzed Machiavelli’s The Prince, Discourses on Livy, Art of War, and secondary resources for La Cagione dell’Ordinanza to make conclusions. This research identified lessons from the works of Machiavelli to improve U.S. civil-military relations. The Machiavellian lessons included finding a balance of objective and subjective control of the military, ensuring the president is knowledgeable on military matters, placing an emphasis on conditioning our youth, funding weapons systems and equipment, and continuing to invest in the standing army. Limitations and Future research topics were suggested in the conclusion.Keywords: Machiavelli, civil-military relations, civilian control, military doctrine, task-organization
ContributorsWright, Danny (Author) / Zuckert, Catherine (Thesis advisor) / Seagrave, Stephen (Thesis advisor) / Stantchev, Stefan (Committee member) / Arizona State University (Publisher)
Created2022
Description
There has been a vast increase in applications of Unmanned Aerial Vehicles (UAVs) in civilian domains. To operate in the civilian airspace, a UAV must be able to sense and avoid both static and moving obstacles for flight safety. While indoor and low-altitude environments are mainly occupied by static obstacles, risks in space of higher altitude primarily come from moving obstacles such as other aircraft or flying vehicles in the airspace. Therefore, the ability to avoid moving obstacles becomes a necessity
for Unmanned Aerial Vehicles.
Towards enabling a UAV to autonomously sense and avoid moving obstacles, this thesis makes the following contributions. Initially, an image-based reactive motion planner is developed for a quadrotor to avoid a fast approaching obstacle. Furthermore, A Dubin’s curve based geometry method is developed as a global path planner for a fixed-wing UAV to avoid collisions with aircraft. The image-based method is unable to produce an optimal path and the geometry method uses a simplified UAV model. To compensate
these two disadvantages, a series of algorithms built upon the Closed-Loop Rapid Exploratory Random Tree are developed as global path planners to generate collision avoidance paths in real time. The algorithms are validated in Software-In-the-Loop (SITL) and Hardware-In-the-Loop (HIL) simulations using a fixed-wing UAV model and in real flight experiments using quadrotors. It is observed that the algorithm enables a UAV to avoid moving obstacles approaching to it with different directions and speeds.
for Unmanned Aerial Vehicles.
Towards enabling a UAV to autonomously sense and avoid moving obstacles, this thesis makes the following contributions. Initially, an image-based reactive motion planner is developed for a quadrotor to avoid a fast approaching obstacle. Furthermore, A Dubin’s curve based geometry method is developed as a global path planner for a fixed-wing UAV to avoid collisions with aircraft. The image-based method is unable to produce an optimal path and the geometry method uses a simplified UAV model. To compensate
these two disadvantages, a series of algorithms built upon the Closed-Loop Rapid Exploratory Random Tree are developed as global path planners to generate collision avoidance paths in real time. The algorithms are validated in Software-In-the-Loop (SITL) and Hardware-In-the-Loop (HIL) simulations using a fixed-wing UAV model and in real flight experiments using quadrotors. It is observed that the algorithm enables a UAV to avoid moving obstacles approaching to it with different directions and speeds.
ContributorsLin, Yucong (Author) / Saripalli, Srikanth (Thesis advisor) / Scowen, Paul (Committee member) / Fainekos, Georgios (Committee member) / Thangavelautham, Jekanthan (Committee member) / Youngbull, Cody (Committee member) / Arizona State University (Publisher)
Created2015
Description
Prior research has provided evidence to suggest that veterans exhibit unique assets that benefit them in engineering education and engineering industry. However, there is little evidence to determine whether their assets are due to military service or other demographic factors such as age, maturity, or gender. The aim of this study is to discover, better understand, and disseminate the unique assets that veterans gained through military service and continue to employ as engineering students or professional engineers. This strength-based thematic analysis investigated the semi-structured narrative interviews of 18 military veterans who are now engineering students or professionals in engineering industry. Using the Funds of Knowledge framework, veterans’ Funds of Knowledge were identified and analyzed for emergent themes. Participants exhibited 10 unique veterans’ Funds of Knowledge. Utilizing analytical memos, repeated reflection, and iterative analysis, two overarching themes emerged, Effective Teaming in Engineering and Adapting to Overcome Challenges. Additionally, a niche concept of Identity Crafting was explored using the unique narratives of two participants. This study provides empirical evidence of military veterans experientially learning valuable assets in engineering from their military service. A better understanding of the veterans’ Funds of Knowledge presented in this study provides valuable opportunities for their utilization in engineering education and engineering industry.
ContributorsSheppard, Michael Scott (Author) / Kellam, Nadia N (Thesis advisor) / Bekki, Jennifer M (Committee member) / Brunhaver, Samantha R (Committee member) / Arizona State University (Publisher)
Created2020
Description
Army Futures Command (AFC) has the implicit mission of ensuring that the Army does not get locked into a technology that might be ineffective in a future of competition and conflict. In this dissertation I develop insights and tools that can help assess and inform AFC’s efforts to understand and avoid undesirable technological lock-in. I started with three historical case studies of the interactions between technology and military strategy. The first examined the German Army’s strategic commitment to using railroads before World War I, forcing them into a military answer to rapidly increased diplomatic tensions in 1914. The second explored how the US Army Air Corps became locked into a doctrine of strategic bombing before World War II, affecting their ability to support ground troops during the Cold War. The third studied why the US Army was able to avoid becoming locked into a tactical nuclear doctrine in the 1950s, despite initial efforts to change Army structure and tactics to accommodate the nuclear battlefield. I identified three factors: 1) rapid changes in the strategic environment; 2) lack of civilian analogues to nuclear weapons; 3) the novelty of tactical nuclear technology, and availability of operational alternatives. The second part of my research sought to identify applicable theories from the fields of science, technology and society studies (STS). I identified five theories (technological systems, co-production, technological lock-in, path dependence, and economic growth theory), each with a brief case study. I sent my initial analysis to eighteen professionals at AFC and used their feedback to determine the utility of these theories for military planning. Finally, I analyzed AFC's current initiatives via semi-structured interviews, gaining insight into AFC's operations to identify three classes of issues that they face: complicated, exterior, and complex. Complicated issues are manageable through organizational methods. Exterior issues require planning to accommodate irreducible uncertainties (such as budgeting processes). Complex issues involved unpredictable interactions among technology and military strategy. I focused on three AFC programs, (artificial intelligence, robotics, and autonomous systems) demonstrating how STS theories can offer additional tools to help guide technological and strategic planning for an uncertain future.
ContributorsMcCafferty, Sean (Author) / Sarewitz, Daniel (Thesis advisor) / Allenby, Braden (Committee member) / Kubiak, Jeffrey (Committee member) / Arizona State University (Publisher)
Created2021