Matching Items (13)
Description
This action research project explores masters level graduate student writing and academic identity during one semester in an interdisciplinary masters program. Informing this study is a two part theoretical framework including the Academic Literacy Model (Lea and Street) and Wenger's concept of identity. The purpose of this exploration was to understand how first semester graduate students experienced academic writing and what characteristics of their academic identity emerged. A mixed-methods approach was used to collect both quantitative and qualitative data. Quantitative data included results from the Inventory of Processes in Graduate Writing (Lavelle and Bushrow, 2007) and the Graduate Student Identity Survey. Qualitative data was collected through researcher observations, student blog entries, writing group transcripts, and individual interviews. The following themes emerge from the data: a) graduate students attribute their successes in writing to previous experiences, b) graduate students experience struggles related primarily to academic quality and faculty expectations, c) graduate students negotiate ways of being in the academy through figuring out expectations of faculty and program, d) work done in the writing group meetings shows evidence of meaning-making for the graduate students, e) the focus of the MA program was critically important to graduate students in the graduate writing project, e) participants' role as graduate students felt most strongly in contexts that include academic activity, and f) students acknowledge change and increasingly identify themselves as writers. Ideas for future cycles of research are discussed.
ContributorsRuggles, Tosha M (Author) / Wetzel, Keith (Thesis advisor) / Ewbank, Ann (Committee member) / Friedrich, Patricia (Committee member) / Arizona State University (Publisher)
Created2012
Description
Technology is rapidly evolving, and mental health professionals are increasingly using technology in their clinical work. In reaction to this shift, it is important that research examines the ethical implications of online behaviors. The current study examined the online practices of graduate students in the mental health field and generated prediction models for online client searches and best practices in informed consent and online disclosure. The sample consisted of 316 graduate students in counseling, clinical, and school programs. Of those with clinical experience, a third had utilized the Internet to find information about their client. Progress in the participants' program, as measured by credits completed or in progress, and years of social networking experience were positively related to online client searches. The vast majority (over 80%) of individuals who conducted an online search did not obtain informed consent prior to the search. Curiosity was the most frequent reason given for conducting a client search. Previous professional discussions and belief that information online is private were not significant predictors of obtaining informed consent. The final analysis examined disclosure of client information and found that lower scores on ethical decision-making and years of social networking experience predicted online disclosure. This study is an important step in understanding the implications of the intersection of technology use, ethics, and clinical practice of graduate mental health professionals.
ContributorsHarris, Sara Elisabeth (Author) / Robinson Kurpius, Sharon E (Thesis advisor) / Tracey, Terence (Committee member) / Kinnier, Richard (Committee member) / Arizona State University (Publisher)
Created2012
Description
As women enter STEM fields they are often presented with chilly climates. The chilly climate refers to incidents of sexism, isolation, and pressure to prove themselves to peers and higher level academics (Callister, 2006; Hall & Sandler, 1982). For women of color, the status of being a double minority can intensify the psychological distress experienced by students (Joseph, 2012; Ong, 2011; Malcom, Hall, & Brown, 1976). For minority populations in STEM, loneliness is experienced due to lack of belonging and social isolation (Morris & Daniel, 2008; Walton & Cohen, 2007). This study sought to investigate whether social support could serve as a protective factor in the negative relationship between loneliness and psychological well-being (Cohen, 2004; Lawson, 2001; Lazarus & Folkman, 1984) for those who hold a minority status. In addition, this study explored differences in the associations between loneliness, social support, and psychological well being and whether or not the moderation relationships were different for sub-groups based on gender or ethnic minority status. Cross-sectional data from 205 STEM graduate students was collected through an online study. A hierarchical regression analysis was used to test the buffering effects (Barron & Kenny, 1986) of global social support (total support from friends, family, and significant others) and family social support specifically. Model results suggested that global social support buffers the negative associations between loneliness and psychological well-being for less lonely minority participants in the study. Family social support buffered the associations of loneliness on psychological well-being for men with less loneliness. An unexpected finding in the present study revealed that for men and non –minority participants with high loneliness, psychological well-being decreased as family support increased. These results highlight the need for further research exploring through which mechanisms social support works as a buffer against loneliness in the sub-groups within STEM graduate student populations. The findings of this study could inform practices focused on the recruitment and retention of underrepresented STEM graduate students.
ContributorsAnderson, Mercedes (Author) / Bernstein, Bianca L. (Thesis advisor) / Randall, Ashley K. (Committee member) / Tracey, Terence (Committee member) / Arizona State University (Publisher)
Created2017
Description
The quality and quantity of talented members of the US STEM workforce has
been a subject of great interest to policy and decision makers for the past 40 years.
Recent research indicates that while there exist specific shortages in specific disciplines
and areas of expertise in the private sector and the federal government, there is no
noticeable shortage in any STEM academic discipline, but rather a surplus of PhDs
vying for increasingly scarce tenure track positions. Despite the seeming availability
of industry and private sector jobs, recent PhDs still struggle to find employment in
those areas. I argue that the decades old narrative suggesting a shortage of STEM
PhDs in the US poses a threat to the value of the natural science PhD, and that
this narrative contributes significantly to why so many PhDs struggle to find career
employment in their fields. This study aims to address the following question: what is
the value of a STEM PhD outside academia? I begin with a critical review of existing
literature, and then analyze programmatic documents for STEM PhD programs at
ASU, interviews with industry employers, and an examination the public face of value
for these degrees. I then uncover the nature of the value alignment, value disconnect,
and value erosion in the ecosystem which produces and then employs STEM PhDs,
concluding with specific areas which merit special consideration in an effort to increase
the value of these degrees for all stakeholders involved.
been a subject of great interest to policy and decision makers for the past 40 years.
Recent research indicates that while there exist specific shortages in specific disciplines
and areas of expertise in the private sector and the federal government, there is no
noticeable shortage in any STEM academic discipline, but rather a surplus of PhDs
vying for increasingly scarce tenure track positions. Despite the seeming availability
of industry and private sector jobs, recent PhDs still struggle to find employment in
those areas. I argue that the decades old narrative suggesting a shortage of STEM
PhDs in the US poses a threat to the value of the natural science PhD, and that
this narrative contributes significantly to why so many PhDs struggle to find career
employment in their fields. This study aims to address the following question: what is
the value of a STEM PhD outside academia? I begin with a critical review of existing
literature, and then analyze programmatic documents for STEM PhD programs at
ASU, interviews with industry employers, and an examination the public face of value
for these degrees. I then uncover the nature of the value alignment, value disconnect,
and value erosion in the ecosystem which produces and then employs STEM PhDs,
concluding with specific areas which merit special consideration in an effort to increase
the value of these degrees for all stakeholders involved.
ContributorsGarbee, Elizabeth (Author) / Maynard, Andrew D. (Thesis advisor) / Wetmore, Jameson (Committee member) / Anderson, Derrick (Committee member) / Arizona State University (Publisher)
Created2018
Description
This dissertation examines collaborative inquiry as a form of graduate mentoring. To investigate this issue, I analyze the research and writing process of a team of five multilingual graduate students and their mentor as they collaboratively design, implement, and report a study based in their local writing program over the course of two years. Through a qualitative activity analysis of team meetings, participant interviews, and the team’s written drafts and email correspondence, I investigate the ways in which self-sponsored, team-based collaborative research and writing supports participants’ learning and development of a professional identity.
Key findings show that unanticipated obstacles in the research context present participants with “real-world” dilemmas that call forth disciplinary alignments, reinforce existing disciplinary practices, and, most importantly, generate new practices altogether. An example of this process is reflected in the research team's frequent need to adjust their research design as a result of constraints within the research environment. The team's ability to pivot in response to such constraints encouraged individual members to view the research enterprise as dynamic and fluid, leading ultimately to a heightened sense of agency and stronger awareness of the rhetorical challenges and opportunities posed by empirical research. Similarly, participants’ demonstrated an ability to recognize and resolve tensions stemming from competing demands on their time and attention during the course of their graduate study. Actively constructing resonances across various domains of their graduate worlds—coursework, teaching, and non-curricular research and professionalization activities—served to clarify purposes and increase motivation.
An additional aspect of this study is the way graduate students leverage their language resources in the collaborative process. This dissertation extends the disciplinary conversation by investigating ways in which language resources function as rhetorical tools within the research context. This focus on language, in concert with collaboration and rhetorical stances to inquiry, challenges persistent views of authorship, apprenticeship, and language norms, while simultaneously lending insight into how graduate students invent new ways of participating in their professional worlds.
Key findings show that unanticipated obstacles in the research context present participants with “real-world” dilemmas that call forth disciplinary alignments, reinforce existing disciplinary practices, and, most importantly, generate new practices altogether. An example of this process is reflected in the research team's frequent need to adjust their research design as a result of constraints within the research environment. The team's ability to pivot in response to such constraints encouraged individual members to view the research enterprise as dynamic and fluid, leading ultimately to a heightened sense of agency and stronger awareness of the rhetorical challenges and opportunities posed by empirical research. Similarly, participants’ demonstrated an ability to recognize and resolve tensions stemming from competing demands on their time and attention during the course of their graduate study. Actively constructing resonances across various domains of their graduate worlds—coursework, teaching, and non-curricular research and professionalization activities—served to clarify purposes and increase motivation.
An additional aspect of this study is the way graduate students leverage their language resources in the collaborative process. This dissertation extends the disciplinary conversation by investigating ways in which language resources function as rhetorical tools within the research context. This focus on language, in concert with collaboration and rhetorical stances to inquiry, challenges persistent views of authorship, apprenticeship, and language norms, while simultaneously lending insight into how graduate students invent new ways of participating in their professional worlds.
ContributorsBommarito, Daniel Vincent (Author) / Matsuda, Paul Kei (Thesis advisor) / Long, Elenore (Committee member) / Rose, Shirley K. (Committee member) / Arizona State University (Publisher)
Created2015
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
Positive psychology focuses on the promotion of well-being (Seligman, & Csikszentmihalyi, 2000). Positive psychology interventions (PPIs) have been developed to help facilitate the development of skills needed to flourish and current research suggests that PPIs can help individuals improve their happiness, reduce stress, and become more resilient (Lyubomirsky, King, & Diener, 2005). National surveys highlight that students in higher education are in dire need of interventions aimed at helping them cope with the negative impact of stress (Douce & Keeling, 2014; Marks & Wade, 2015). Research among the graduate student population is scant even though they report high levels of stress and work even more hours than undergraduate students (Wyatt & Oswalt, 2013). PPIs implemented in the graduate student population focus heavily on psychologically-based programs, like psychology and social work, whose students may already be receiving assistance in self-care (Botta, Cadet, & Maramaldi, 2015; Burkhart, 2014; Nelson, Dell'Oliver, Koch, & Buckler, 2001). Thus, this current study is a randomized controlled trial testing an online PPI, adapted from Achor's work in the business industry (2012, 2014), compared with an online informative stress group and a wait list control group among graduate students from various disciplines at a large, public university in the Southwest. Participants were administered pre-, post-, and three-month follow-up tests to determine the impact of the interventions on their levels of perceived stress, happiness, and resilience. A multivariate analysis of covariance (MANCOVA) was used with covariates of age, gender, race, program of study, and graduate level of study (masters versus doctoral). The main findings of the study included: the students in the PPI group reported significantly higher resilience at the end of the three weeks than did the students in the informative stress or wait list control groups, even though measures of happiness or perceived stress were not impacted; and students from psychologically based programs received the most benefit from treatment, especially from the PPI intervention. All findings, implications, and suggestions for future directions are discussed.
ContributorsVenieris, Pauline (Author) / Kinnier, Richard (Thesis advisor) / Rund, James (Committee member) / Homer, Judith (Committee member) / Arizona State University (Publisher)
Created2017
Description
The demands and expectations of graduate school can be stressful for any student. Graduate students in a romantic relationship, in particular, contend with both individual and dyadic effects of graduate school stress, as stress has been found to be negatively associated with both individual and relational well-being. Asymmetrical graduate student couples, wherein one partner is in graduate school and the other is not, may be particularly vulnerable to relationship strain because of differences in their experience of graduate school. However, non-student partners can help the graduate student cope with stress through dyadic coping. This study sought to examine whether: a) there were associations between graduate school stress on individual (life satisfaction) and relational (relationship satisfaction) well-being, and b) whether these associations were moderated by positive and negative dyadic coping behaviors. Cross-sectional data from 62 asymmetrical graduate student couples were gathered using an online survey. Data were analyzed using Actor-Partner Interdependence Models (Kenny, Kashy, & Cook 2006). Separate models were conducted to examine overall associations between graduate stress and well-being, and additional analyses were conducted to examine potential moderation effects of perceptions of partner dyadic coping (actor effects) and partner self-reported dyadic coping (partner effects) on the overall associations between stress and life- and relationship satisfaction mentioned above. Results for the overall model suggested that graduate stress is associated with both individual- and relational well-being. Surprisingly, and against prior literature, positive dyadic coping did not buffer the negative association between graduate stress and well-being, and negative dyadic coping did not exacerbate the association. Implications of the findings for future research and for mental health counselors are discussed.
ContributorsSegraves, Megan C (Author) / Randall, Ashley K. (Thesis advisor) / Bernstein, Bianca (Committee member) / Kurpius, Sharon (Committee member) / Arizona State University (Publisher)
Created2017
Exploring the Relationship Between Depression and Graduate School Among Life Sciences Ph.D. Students
Description
Depression is one of the top mental health concerns among biology graduate students and has contributed to the “graduate student mental health crisis” declared in 2018. Prominent science outlets have called for interventions to improve graduate student mental health, but few studies have examined the relationship between depression and graduate school among life sciences Ph.D. students. In this coupled set of qualitative interview studies, 50 life sciences Ph.D. students from 28 institutions across the United States were interviewed. The first study explored how research and teaching affect depression in Ph.D. students and how depression in turn also affects students’ experiences in graduate school. Using inductive coding, four overarching aspects of graduate school that influenced student depression were highlighted, (1) structure in teaching and research, (2) positive and negative reinforcement, (3) success and failure, and (4) social support and isolation. The second study explored depression as a concealable stigmatized identity (CSI) by examining (1) to what extent and why graduate students revealed their depression to faculty advisors, graduate students, and undergraduate researchers, and (2) the consequences or benefits that they perceive are associated with revealing one’s depression through a hybrid approach of deductive and inductive coding. Graduate students most commonly revealed their depression to other graduate students; however, most were reluctant to share their depression with undergraduate researchers. These qualitative interview studies provide insights into creating more inclusive life science graduate programs for students with depression.
ContributorsWiesenthal, Nicholas John (Author) / Cooper, Katelyn M (Thesis advisor) / Brownell, Sara E (Committee member) / Maienschein, Jane (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