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Description
Advancements in mobile technologies have significantly enhanced the capabilities of mobile devices to serve as powerful platforms for sensing, processing, and visualization. Surges in the sensing technology and the abundance of data have enabled the use of these portable devices for real-time data analysis and decision-making in digital signal processing (DSP) applications. Most of the current efforts in DSP education focus on building tools to facilitate understanding of the mathematical principles. However, there is a disconnect between real-world data processing problems and the material presented in a DSP course. Sophisticated mobile interfaces and apps can potentially play a crucial role in providing a hands-on-experience with modern DSP applications to students. In this work, a new paradigm of DSP learning is explored by building an interactive easy-to-use health monitoring application for use in DSP courses. This is motivated by the increasing commercial interest in employing mobile phones for real-time health monitoring tasks. The idea is to exploit the computational abilities of the Android platform to build m-Health modules with sensor interfaces. In particular, appropriate sensing modalities have been identified, and a suite of software functionalities have been developed. Within the existing framework of the AJDSP app, a graphical programming environment, interfaces to on-board and external sensor hardware have also been developed to acquire and process physiological data. The set of sensor signals that can be monitored include electrocardiogram (ECG), photoplethysmogram (PPG), accelerometer signal, and galvanic skin response (GSR). The proposed m-Health modules can be used to estimate parameters such as heart rate, oxygen saturation, step count, and heart rate variability. A set of laboratory exercises have been designed to demonstrate the use of these modules in DSP courses. The app was evaluated through several workshops involving graduate and undergraduate students in signal processing majors at Arizona State University. The usefulness of the software modules in enhancing student understanding of signals, sensors and DSP systems were analyzed. Student opinions about the app and the proposed m-health modules evidenced the merits of integrating tools for mobile sensing and processing in a DSP curriculum, and familiarizing students with challenges in modern data-driven applications.
ContributorsRajan, Deepta (Author) / Spanias, Andreas (Thesis advisor) / Frakes, David (Committee member) / Turaga, Pavan (Committee member) / Arizona State University (Publisher)
Created2013
Description
The Vocal Jazz ensemble, a uniquely American choral form, has grown and flourished in the past half century largely through the efforts of professionals and educators throughout the collegiate music community. This document provides historical data as presented through live and published interviews with key individuals involved in the early development of collegiate Vocal Jazz, as well as those who continue this effort currently. It also offers a study of the most influential creative forces that provided the spark for everyone else's fire. A frank discussion on the obstacles encountered and overcome is central to the overall theme of this research into a genre that has moved from a marginalized afterthought to a legitimate, more widely accepted art form. In addition to the perspective provided to future generations of educators in this field, this document also discusses the role of collegiate music academia in preserving and promoting the Vocal Jazz ensemble. The discussion relies on recent data showing the benefits of Vocal Jazz training and the need for authenticity towards its universal integration into college and university vocal performance and music education training.
ContributorsAmerind, Gregory (Author) / Kocour, Michael (Thesis advisor) / Carpenter, Ellon (Committee member) / Britton, David (Committee member) / Ryan, Russell (Committee member) / Arizona State University (Publisher)
Created2013
Description
There are many educational issues connected to the exponential growth of the Latina/o population in the U.S. One such issue is Latina/os’ educational outcomes in the area of literacy. Despite the increased attention to subpopulations of students (e.g., English language learners, students with disabilities) there is little attention given to students that do not fit neatly into one subcategory, which positions Latina/o language minorities (LMs) with learning disabilities (LDs) in a liminal space where their educational services are fragmented into either being a student with LD or a LM student. Unfortunately, labels that are meant to afford students resources often result in fragmenting students’ educational experiences. This becomes evident when attempting to locate research on students who have ethnic, linguistic, and ability differences. Rarely are their educational needs as Latina/o LMs with LD met fluidly. Understanding the intersections of ethnicity, language, and ability differences in situated literacy practice is imperative to creating the deep, nuanced understanding of how Latina/o LMs with LD might become proficient in the use of critical twenty-first century tools such as new literacies. In this study I used cultural historical activity theory in combination with New Literacy Studies (Cope & Kalantzis, 2009; Gee, 1996) and intersectionality (McCall, 2014) to examine how Latina/o LMs with LD’s participated in literacies across in- and out-of-school contexts with the following research questions: In what ways does participation in literacy change for Latina/o LMs with LD as they move between in- and out-of-school? What situated identities do LMs with LD enact and resist while participating in literacy across in- and out-of-school contexts?
ContributorsGonzalez, Taucia (Author) / Artiles, Alfredo J. (Thesis advisor) / Kozleski, Elizabeth B. (Committee member) / Hudelson, Sarah (Committee member) / Arizona State University (Publisher)
Created2015
Description
Despite the widely recognized health benefits of breastfeeding and its endorsement by leading health organizations, as a preventative public health intervention, inadequate breastfeeding knowledge and lactation management skills among healthcare providers continues to be a major barrier for women who choose to initiate breastfeeding. Breastfeeding competencies are not standardized in healthcare education for any of the health professions. To address this gap, a few continuing education and professional development programs have been implemented, but paucity in research regarding the efficacy of these programs exists. The purpose of this study was to explore the changes in healthcare providers’ learning outcomes related to breastfeeding support and promotion.
A non-experimental pre-posttest self-report survey design was used to assess the feasibility and preliminary efficacy of an online breastfeeding educational intervention for healthcare providers. The Theory of Planned Behavior (TPB) provided the framework for exploring the participants’ psychological and behavioral outcomes. The research questions were: (1) What is the feasibility of an online breastfeeding course for healthcare providers? (2) What are healthcare providers’ psychological and behavioral changes occurring after completion of an online course? (3) How do the post-intervention psychological and behavioral outcomes of the online format compare with those of the previous format (hybrid) of this breastfeeding course?
Although participants’ favorably assessed the feasibility (i.e., acceptability) of the 45-hour course, several factors contributed to participants’ satisfaction level: Previous online learning experience, connectedness with others, and the degree of structural support. Significant positive changes occurring in participants were increases in their knowledge and beliefs about breastfeeding; attitudes toward formula feeding; perceived behavioral control; perceptions about being able to perform breastfeeding supportive behaviors; and intentions to perform actions that are consistent with evidence-based breastfeeding supportive behaviors. Significant changes in the beliefs about formula feeding were not in the expected direction raising conceptual and pedagogical issues. Participants had negative perceptions about being able to implement what they learned in their workplaces or to affect policy. Findings support the use of online breastfeeding education programs for healthcare providers; changes at both individual and institutional levels are necessary to change provider practices.
A non-experimental pre-posttest self-report survey design was used to assess the feasibility and preliminary efficacy of an online breastfeeding educational intervention for healthcare providers. The Theory of Planned Behavior (TPB) provided the framework for exploring the participants’ psychological and behavioral outcomes. The research questions were: (1) What is the feasibility of an online breastfeeding course for healthcare providers? (2) What are healthcare providers’ psychological and behavioral changes occurring after completion of an online course? (3) How do the post-intervention psychological and behavioral outcomes of the online format compare with those of the previous format (hybrid) of this breastfeeding course?
Although participants’ favorably assessed the feasibility (i.e., acceptability) of the 45-hour course, several factors contributed to participants’ satisfaction level: Previous online learning experience, connectedness with others, and the degree of structural support. Significant positive changes occurring in participants were increases in their knowledge and beliefs about breastfeeding; attitudes toward formula feeding; perceived behavioral control; perceptions about being able to perform breastfeeding supportive behaviors; and intentions to perform actions that are consistent with evidence-based breastfeeding supportive behaviors. Significant changes in the beliefs about formula feeding were not in the expected direction raising conceptual and pedagogical issues. Participants had negative perceptions about being able to implement what they learned in their workplaces or to affect policy. Findings support the use of online breastfeeding education programs for healthcare providers; changes at both individual and institutional levels are necessary to change provider practices.
ContributorsWatkins, Amanda L (Author) / Dodgson, Joan E (Thesis advisor) / Reifsnider, Elizabeth G. (Committee member) / McClain, Darya (Committee member) / Arizona State University (Publisher)
Created2015
Description
This study addresses conflicting findings regarding gender differences in the moderating role of ethnic private regard in the longitudinal association between school ethnic discrimination and educational values among Latina/o early adolescents. Participants included 689 Latina/o early adolescents in middle school (Mage = 12.06, SD = .98 at Time 1; Mage = 12.66, SD = 1.00 at Time 2). Two waves of data were collected approximately eight months apart. Ethnic private regard moderated the association between school ethnic discrimination at time 1 and educational values at time 2 only among Latino male early adolescents, such that the negative association between school ethnic discrimination and educational values existed only for males with high ethnic private regard. Implications highlight the need to enhance teachers’ cultural competency in working with Latino male students.
ContributorsCruz, Samantha (Author) / Santos, Carlos (Thesis advisor) / Tran, Giac-Thao (Committee member) / Yoo, Hyung (Committee member) / Arizona State University (Publisher)
Created2016
Wellness resources at postsecondary music schools: a survey of how this information is being offered
Description
Musicians have the potential to experience health problems related to their
profession. The National Association of Schools of Music (NASM) requires schools to
provide information about wellness. There are 634 degree-granting, not for profit, NASM
accredited postsecondary music schools in America. This study examined the types of
wellness resources offered at 387 of these schools or 60%. Wellness information was
divided into three categories: physical, psychological and hearing. The types of resources
offered, category of information and the size of the school were considered. Schools were
emailed and their websites were searched for wellness information.
Forty-eight percent of the schools had website information, 32% offered wellness
workshops, 16% of the schools offered wellness courses, and 32% of the schools covered
wellness information through other methods. Nineteen percent of the schools said that
they did not offer courses or workshops and did not say how they are meeting the
requirement. Physical wellness information was most widely available, followed by
hearing information, while psychological wellness information was harder to find.
Smaller schools were less likely to offer wellness courses but otherwise the size of a
school did not play a significant role in the types of wellness resources they were able to
offer.
Based on the findings, more schools should incorporate wellness information on
their websites and hold wellness workshops. Psychological wellness information should
be more widely available. Schools should advertise the wellness information that they
offer so that students are aware of the options available to them.
profession. The National Association of Schools of Music (NASM) requires schools to
provide information about wellness. There are 634 degree-granting, not for profit, NASM
accredited postsecondary music schools in America. This study examined the types of
wellness resources offered at 387 of these schools or 60%. Wellness information was
divided into three categories: physical, psychological and hearing. The types of resources
offered, category of information and the size of the school were considered. Schools were
emailed and their websites were searched for wellness information.
Forty-eight percent of the schools had website information, 32% offered wellness
workshops, 16% of the schools offered wellness courses, and 32% of the schools covered
wellness information through other methods. Nineteen percent of the schools said that
they did not offer courses or workshops and did not say how they are meeting the
requirement. Physical wellness information was most widely available, followed by
hearing information, while psychological wellness information was harder to find.
Smaller schools were less likely to offer wellness courses but otherwise the size of a
school did not play a significant role in the types of wellness resources they were able to
offer.
Based on the findings, more schools should incorporate wellness information on
their websites and hold wellness workshops. Psychological wellness information should
be more widely available. Schools should advertise the wellness information that they
offer so that students are aware of the options available to them.
ContributorsFraser, Catherine (Author) / Spring, Robert (Thesis advisor) / Gardner, Joshua (Thesis advisor) / Caslor, Jason (Committee member) / Feisst, Sabine (Committee member) / Sullivan, Jill (Committee member) / Arizona State University (Publisher)
Created2016
Description
Over 150 years since the abolition of slavery, African Americans still lack equal access to education and other quality of life markers. However, a slow increase in African American students pursuing and obtaining higher education demonstrates the progress of African American academic success. Although still not at an equitable level, this progress, and the voices of success are often muted by the majoritarian narrative of African American student failure. This research focuses on African American student success and examines the specific socio-cultural characteristics and processes that shape the ways in which African American students develop their own counter-narratives to persist and gain access to higher education. This study utilizes narrative inquiry in the form of interviews, artifacts collection and student-drawn identity maps to understand the factors that influence the development of counter-narratives. The primary research questions included: What narratives did African American students tell themselves to help them persist in school, attain a high school diploma and pursue higher education? How did they develop their narratives? How did their narratives influence their educational experiences? Five African American students who attended an elite public university in the southwest United States participated in four to five interviews ranging from six to ten hours in total. Through the analysis of their stories, the importance of culture and context were clear. Specifically their social support systems including their parents, siblings, teachers and mentors, significantly influenced their identity development and human agency. The findings also point to a critical path forward: if society commits to supporting African American student success, then shine a light on stories of persistence and potential rather than shortcomings and failures.
ContributorsFreeman, Stacey Vicario (Author) / Kozleski, Elizabeth B. (Thesis advisor) / Fischman, Gustavo (Thesis advisor) / Artiles, Alfredo (Committee member) / Arizona State University (Publisher)
Created2016
Description
The Partition of Variance (POV) method is a simplistic way to identify large sources of variation in manufacturing systems. This method identifies the variance by estimating the variance of the means (between variance) and the means of the variance (within variance). The project shows that the method correctly identifies the variance source when compared to the ANOVA method. Although the variance estimators deteriorate when varying degrees of non-normality is introduced through simulation; however, the POV method is shown to be a more stable measure of variance in the aggregate. The POV method also provides non-negative, stable estimates for interaction when compared to the ANOVA method. The POV method is shown to be more stable, particularly in low sample size situations. Based on these findings, it is suggested that the POV is not a replacement for more complex analysis methods, but rather, a supplement to them. POV is ideal for preliminary analysis due to the ease of implementation, the simplicity of interpretation, and the lack of dependency on statistical analysis packages or statistical knowledge.
ContributorsLittle, David John (Author) / Borror, Connie (Thesis advisor) / Montgomery, Douglas C. (Committee member) / Broatch, Jennifer (Committee member) / Arizona State University (Publisher)
Created2015
Description
The purpose of this action research study was to implement and analyze an intervention designed to improve perceptions of working with others as well as practice and improve emotional tools related to such interactions through the systematic development of ability emotional intelligence (EI) related skills. The present study sought to: (1) explore high school students’ perceptions of their role as part of a team during teamwork; (1a) investigate how perceptions differed by EI level; (2) examine how students’ perceptions of their role in teamwork were influenced by being paired with more advanced (ability EI) peers or less advanced peers, based on ability emotional intelligence test scores; (3) determine if ability emotional intelligence related skills could be developed over the course of a 7-week intervention.
The intervention took place in a 12th grade US Government & Economics classroom with 34 participants for examination of general trends, and 11 focal participants for focused and in-depth analysis. Students were taught about emotion theory and engaged in two weeks of ability emotional intelligence skills training, followed by a five-week project cycle in which students were required to work together to achieve a common goal. The research design was mixed methods convergent parallel. Quantitative data were collected from post- and retrospective pre-intervention surveys regarding student perceptions about working with others and their ability EI related skills. Qualitative data were collected through on-going student reflective journal entries, observational field notes, and interviews with the focal group of participants.
Results suggested the intervention had a significant effect on students’ perceptions of working with others and perceived ability emotional intelligence related skills. Significant positive change was found through quantitative data analysis, revealing students’ perceptions about working with others in teams had improved as a result of the intervention as had their perceptions about their ability EI related skills. Qualitative analysis revealed rich, thick descriptions exploring this shift in perception among the 11 focal students, providing the evidence necessary to support the effectiveness of the intervention. Results suggested the possibilities for improved teamwork in the classroom.
The intervention took place in a 12th grade US Government & Economics classroom with 34 participants for examination of general trends, and 11 focal participants for focused and in-depth analysis. Students were taught about emotion theory and engaged in two weeks of ability emotional intelligence skills training, followed by a five-week project cycle in which students were required to work together to achieve a common goal. The research design was mixed methods convergent parallel. Quantitative data were collected from post- and retrospective pre-intervention surveys regarding student perceptions about working with others and their ability EI related skills. Qualitative data were collected through on-going student reflective journal entries, observational field notes, and interviews with the focal group of participants.
Results suggested the intervention had a significant effect on students’ perceptions of working with others and perceived ability emotional intelligence related skills. Significant positive change was found through quantitative data analysis, revealing students’ perceptions about working with others in teams had improved as a result of the intervention as had their perceptions about their ability EI related skills. Qualitative analysis revealed rich, thick descriptions exploring this shift in perception among the 11 focal students, providing the evidence necessary to support the effectiveness of the intervention. Results suggested the possibilities for improved teamwork in the classroom.
ContributorsZuniga, Alison Kara (Author) / Bertrand, Melanie (Thesis advisor) / Buss, Ray (Committee member) / Caruso, David (Committee member) / Arizona State University (Publisher)
Created2019
Description
Network analysis is a key conceptual orientation and analytical tool in the social sciences that emphasizes the embeddedness of individual behavior within a larger web of social relations. The network approach is used to better understand the cause and consequence of social interactions which cannot be treated as independent. The relational nature of network data and models, however, amplify the methodological concerns associated with inaccurate or missing data. This dissertation addresses such concerns via three projects. As a motivating substantive example, Project 1 examines factors associated with the selection of interaction partners by students at a large urban high school implementing a reform which, like many organizational improvement initiatives, is associated with a theory of change that posits changes to the structuring of social interactions as a central causal pathway to improved outcomes. A distinctive aspect of the data used in Project 1 is that it was a complete egocentric network census – in addition to being asked about their own relationships, students were asked about the relationships between alters that they nominated in the self-report. This enables two unique examinations of methodological challenges in network survey data collection: Project 2 examines the factors related to how well survey respondents assess the strength of social connections between others, finding that "informant" competence corresponds positively with their social proximity to target dyad as well as their centrality in the network. Project 3 explores using such third-party reports to augment network imputation methods, and finds that incorporating third-party reports into model-based methods provides a significant boost in imputation accuracy. Together these findings provide important implications for collecting and extrapolating data in research contexts where a complete social network census is highly desirable but infeasible.
ContributorsBates, Jordan T (Author) / Maroulis, Spiro J (Thesis advisor) / Kang, Yun (Thesis advisor) / Frank, Kenneth A. (Committee member) / Arizona State University (Publisher)
Created2019