Matching Items (20)
Description
The Modern Synthesis embodies a theory of natural selection where selection is to be fundamentally understood in terms of measures of fitness and the covariance of reproductive success and trait or character variables. Whether made explicit or left implicit, the notion that selection requires that some trait variable cause reproductive success has been deemphasized in our modern understanding of exactly what selection amounts to. The dissertation seeks to advance a theory of natural selection that is fundamentally causal. By focusing on the causal nature of natural selection (rather than on fitness or statistical formulae), certain conceptual and methodological problems are seen in a new, clarifying light and avenues toward new, interesting solutions to those problems are illustrated. First, the dissertation offers an update to explicitly causal theories of when exactly a trait counts as an adaptation upon fixation in a population and draws out theoretical and practical implications for evolutionary biology. Second, I examine a case of a novel character that evolves by niche construction and argue that it evolves by selection for it and consider implications for understanding adaptations and drift. The third contribution of the dissertation is an argument for the importance of defining group selection causally and an argument against model pluralism in the levels of selection debate. Fourth, the dissertation makes a methodological contribution. I offer the first steps toward an explicitly causal methodology for inferring the causes of selection—something often required in addition to inferring the causes of reproductive success. The concluding chapter summarizes the work and discusses potential paths for future work.
ContributorsAnderson, Wesley (Author) / Armendt, Brad (Thesis advisor) / Creath, Richard (Committee member) / Glymour, Bruce (Committee member) / Kinzig, Ann (Committee member) / Perrings, Charles (Committee member) / Arizona State University (Publisher)
Created2016
Description
Systems biology studies complex biological systems. It is an interdisciplinary field, with biologists working with non-biologists such as computer scientists, engineers, chemists, and mathematicians to address research problems applying systems’ perspectives. How these different researchers and their disciplines differently contributed to the advancement of this field over time is a question worth examining. Did systems biology become a systems-oriented science or a biology-oriented science from 1992 to 2013?
This project utilized computational tools to analyze large data sets and interpreted the results from historical and philosophical perspectives. Tools deployed were derived from scientometrics, corpus linguistics, text-based analysis, network analysis, and GIS analysis to analyze more than 9000 articles (metadata and text) on systems biology. The application of these tools to a HPS project represents a novel approach.
The dissertation shows that systems biology has transitioned from a more mathematical, computational, and engineering-oriented discipline focusing on modeling to a more biology-oriented discipline that uses modeling as a means to address real biological problems. Also, the results show that bioengineering and medical research has increased within systems biology. This is reflected in the increase of the centrality of biology-related concepts such as cancer, over time. The dissertation also compares the development of systems biology in China with some other parts of the world, and reveals regional differences, such as a unique trajectory of systems biology in China related to a focus on traditional Chinese medicine.
This dissertation adds to the historiography of modern biology where few studies have focused on systems biology compared with the history of molecular biology and evolutionary biology.
This project utilized computational tools to analyze large data sets and interpreted the results from historical and philosophical perspectives. Tools deployed were derived from scientometrics, corpus linguistics, text-based analysis, network analysis, and GIS analysis to analyze more than 9000 articles (metadata and text) on systems biology. The application of these tools to a HPS project represents a novel approach.
The dissertation shows that systems biology has transitioned from a more mathematical, computational, and engineering-oriented discipline focusing on modeling to a more biology-oriented discipline that uses modeling as a means to address real biological problems. Also, the results show that bioengineering and medical research has increased within systems biology. This is reflected in the increase of the centrality of biology-related concepts such as cancer, over time. The dissertation also compares the development of systems biology in China with some other parts of the world, and reveals regional differences, such as a unique trajectory of systems biology in China related to a focus on traditional Chinese medicine.
This dissertation adds to the historiography of modern biology where few studies have focused on systems biology compared with the history of molecular biology and evolutionary biology.
ContributorsZou, Yawen (Author) / Laubichler, Manfred (Thesis advisor) / Maienschein, Jane (Thesis advisor) / Creath, Richard (Committee member) / Ellison, Karin (Committee member) / Newfeld, Stuart (Committee member) / Arizona State University (Publisher)
Created2016
Description
This dissertation begins to lay out a small slice of the history of morphological research, and how it has changed, from the late 19th through the close of the 20th century. Investigators using different methods, addressing different questions, holding different assumptions, and coming from different research fields have pursued morphological research programs, i.e. research programs that explore the process of changing form. Subsequently, the way in which investigators have pursued and understood morphology has witnessed significant changes from the 19th century to modern day research. In order to trace this shifting history of morphology, I have selected a particular organ, teeth, and traced a tendril of research on the dentition beginning in the late 19th century and ending at the year 2000. But even focusing on teeth would be impossible; the scope of research on this organ is far too vast. Instead, I narrow this dissertation to investigation of research on a particular problem: explaining mammalian tooth morphology. How researchers have investigated mammalian tooth morphology and what counts as an explanation changed dramatically during this period.
ContributorsMacCord, Katherine (Author) / Maienschein, Jane (Thesis advisor) / Laubichler, Manfred (Thesis advisor) / Laplane, Lucie (Committee member) / Kimbel, William (Committee member) / Creath, Richard (Committee member) / Hurlbut, Benjamin (Committee member) / Arizona State University (Publisher)
Created2017
Description
Health and healing in the United States is in a moment of deep and broad transformation. Underpinning this transformation is a shift in focus from practitioner- and system-centric perspectives to patient and family expectations and their accompanying localized narratives. Situated within this transformation are patients and families of all kinds. This shift's interpretation lies in the converging and diverging trails of biomedicine, a patient-centric perspective of consensus between practitioner and patient, and postmodern philosophy, a break from prevailing norms and systems. Lending context is the dynamic interplay between increasing ethnic/cultural diversity, acculturation/biculturalism, and medical pluralism. Diverse populations continue to navigate multiple health and healing paradigms, engage in the process of their integration, and use health and healing practices that run corollary to them. The way this experience is viewed, whether biomedically or philosophically, has implications for the future of healthcare. Over this fluid interpenetration, with its vivid nuance, loom widespread health disparities. The adverse effects of static, fragmented healthcare systems unable to identify and answer diverse populations' emergent needs are acutely felt by these individuals. Eradication of health disparities is born from insight into how these populations experience health and healing. The resulting strategy must be one that simultaneously addresses the complex intricacies of patient-centered care, permits emergence of more localized narratives, and eschews systems that are no longer effective. It is the movement of caregivers across multiple health and healing sources, managing care for loved ones, that provides this insight and in which this project is keenly interested. Uncovering the emergent patterns of caregivers' management of these sources reveals a rich and nuanced spectrum of realities. These realities are replete with opportunities to re-frame health and healing in ways that better reflect what these diverse populations of caregivers and care recipients need. Engaging female Mexican American caregivers, a population whose experience is well-suited to aid in this re-frame, this project begins to provide that insight. Informed by a parent framework of Complexity Science, and balanced between biomedical and postmodern perspectives, this constructivist grounded theory secondary analysis charts these caregivers' processes and offers provocative findings and recommendations for understanding their experiences.
ContributorsKrahe, Jennifer Anne Eve (Author) / Lamb, Gerri (Thesis advisor) / Evans, Bronwynne (Committee member) / Larkey, Linda (Committee member) / Arizona State University (Publisher)
Created2013
Description
At the interface of developmental biology and evolutionary biology, the very
criteria of scientific knowledge are up for grabs. A central issue is the status of evolutionary genetics models, which some argue cannot coherently be used with complex gene regulatory network (GRN) models to explain the same evolutionary phenomena. Despite those claims, many researchers use evolutionary genetics models jointly with GRN models to study evolutionary phenomena.
How do those researchers deploy those two kinds of models so that they are consistent and compatible with each other? To address that question, this dissertation closely examines, dissects, and compares two recent research projects in which researchers jointly use the two kinds of models. To identify, select, reconstruct, describe, and compare those cases, I use methods from the empirical social sciences, such as digital corpus analysis, content analysis, and structured case analysis.
From those analyses, I infer three primary conclusions about projects of the kind studied. First, they employ an implicit concept of gene that enables the joint use of both kinds of models. Second, they pursue more epistemic aims besides mechanistic explanation of phenomena. Third, they don’t work to create and export broad synthesized theories. Rather, they focus on phenomena too complex to be understood by a common general theory, they distinguish parts of the phenomena, and they apply models from different theories to the different parts. For such projects, seemingly incompatible models are synthesized largely through mediated representations of complex phenomena.
The dissertation closes by proposing how developmental evolution, a field traditionally focused on macroevolution, might fruitfully expand its research agenda to include projects that study microevolution.
criteria of scientific knowledge are up for grabs. A central issue is the status of evolutionary genetics models, which some argue cannot coherently be used with complex gene regulatory network (GRN) models to explain the same evolutionary phenomena. Despite those claims, many researchers use evolutionary genetics models jointly with GRN models to study evolutionary phenomena.
How do those researchers deploy those two kinds of models so that they are consistent and compatible with each other? To address that question, this dissertation closely examines, dissects, and compares two recent research projects in which researchers jointly use the two kinds of models. To identify, select, reconstruct, describe, and compare those cases, I use methods from the empirical social sciences, such as digital corpus analysis, content analysis, and structured case analysis.
From those analyses, I infer three primary conclusions about projects of the kind studied. First, they employ an implicit concept of gene that enables the joint use of both kinds of models. Second, they pursue more epistemic aims besides mechanistic explanation of phenomena. Third, they don’t work to create and export broad synthesized theories. Rather, they focus on phenomena too complex to be understood by a common general theory, they distinguish parts of the phenomena, and they apply models from different theories to the different parts. For such projects, seemingly incompatible models are synthesized largely through mediated representations of complex phenomena.
The dissertation closes by proposing how developmental evolution, a field traditionally focused on macroevolution, might fruitfully expand its research agenda to include projects that study microevolution.
ContributorsElliott, Steve (Author) / Creath, Richard (Thesis advisor) / Laubichler, Manfred D. (Thesis advisor) / Armendt, Brad (Committee member) / Forber, Patrick (Committee member) / Pratt, Stephen (Committee member) / Arizona State University (Publisher)
Created2017
Description
The goal of science education in the United States is promoting scientific literacy for all students. The goal necessitates understanding the nature of science-what science is as a body of knowledge, explanatory tool, and human enterprise. The history of science is one of the most long-standing pedagogical methods of getting at the nature of science. But scientific literacy also encompasses education in scientific inquiry, and in the relationships among science, technology, and society (STS), as well as fact and theory-based subject-matter content. Since the beginning of the standards-based reform movement (circa 1983) many attempts have been made to codify the components of scientific literacy. National level voluntary standards have lead to state standards. Under No Child Left Behind, those state standards have become integral parts of the educational system. Standards are political in nature, yet play the role of intended curriculum. I examine one thread of scientific literacy, the history and nature of science, from its beginnings in science education through the political perturbations of the last thirty years. This examination of "the history and nature of science" through the history of standards-based reform sheds light on our changing conception of scientific literacy.
ContributorsLawrence, Cera Ruth (Author) / Maienschein, Jane (Thesis advisor) / Luft, Julie (Committee member) / LePore, Paul (Committee member) / Arizona State University (Publisher)
Created2011
Description
Over the last half century, global healthcare practices have increasingly relied on technological interventions for the detection, prevention, and treatment of disability and disease. As these technologies become routinized and normalized into medicine, the social and political dimensions require substantial consideration. Such consideration is particularly critical in the context of ableism, in which bodily and cognitive differences such as disabilities are perceived as deviance and demand intervention. Further, neoliberalism, with its overwhelming tendency to privatize and individualize, creates conditions under which social systems abdicate responsibility for social issues such as ableism, shifting accountability onto individuals to prevent or mitigate difference through individualized means.
It is in this context that this dissertation, informed by critical disability studies and feminist science and technology studies, examines the understanding and enactment of disability and responsibility in relation to biomedical technologies. I draw from qualitative empirical data from three distinct case studies, each focused on a different biomedical technology: prenatal genetic screening and diagnosis, deep brain stimulation, and do-it-yourself artificial pancreas systems. Analyzing semi-structured interviews and primary documents through an inductive framework that takes up elements of Grounded Theory and hermeneutic phenomenology, this research demonstrates a series of tensions. As disability becomes increasingly associated with discrete biological characteristics and medical professionals claim a growing authority over disabled bodyminds, users of these technologies are caught in a double bind of personal responsibility and epistemic invalidation. Technologies, however, do not occupy either exclusively oppressive or liberatory roles. Rather, they are used with full acknowledgement of their role in perpetuating medical authority and neoliberal paradigms as well as their individual benefit. Experiential and embodied knowledge, particular when in tension with clinical knowledge, is invalidated as a transgression of expert authority. To reject these invalidations, communities cohering around subaltern knowledges emerge in resistance to the mismatched priorities and expectations of medical authority, creating space for alternative disabled imaginaries.
It is in this context that this dissertation, informed by critical disability studies and feminist science and technology studies, examines the understanding and enactment of disability and responsibility in relation to biomedical technologies. I draw from qualitative empirical data from three distinct case studies, each focused on a different biomedical technology: prenatal genetic screening and diagnosis, deep brain stimulation, and do-it-yourself artificial pancreas systems. Analyzing semi-structured interviews and primary documents through an inductive framework that takes up elements of Grounded Theory and hermeneutic phenomenology, this research demonstrates a series of tensions. As disability becomes increasingly associated with discrete biological characteristics and medical professionals claim a growing authority over disabled bodyminds, users of these technologies are caught in a double bind of personal responsibility and epistemic invalidation. Technologies, however, do not occupy either exclusively oppressive or liberatory roles. Rather, they are used with full acknowledgement of their role in perpetuating medical authority and neoliberal paradigms as well as their individual benefit. Experiential and embodied knowledge, particular when in tension with clinical knowledge, is invalidated as a transgression of expert authority. To reject these invalidations, communities cohering around subaltern knowledges emerge in resistance to the mismatched priorities and expectations of medical authority, creating space for alternative disabled imaginaries.
ContributorsMonteleone, Rebecca (Author) / Fonow, Mary Margaret (Thesis advisor) / Ross, Heather (Committee member) / Frow, Emma (Committee member) / Michael, Katina (Committee member) / Arizona State University (Publisher)
Created2020
Description
This dissertation explores the contemporary politics of global transformation: the ways biological expertise and economic rationalities are positioned as agents of governance in the face of emerging global crisis. It examines visions for a new bioeconomy that are offered in response to impending global crisis. Leaders point to calculations of global population growth and resource depletion to predict future crises and call for a new bioeconomy as a pillar of sustainable and “good” governance.
Focusing on visions and practices of bioeconomy-making in the U.S. and Brazil, the dissertation examines bioeconomy discourse as a response to global crisis and a framework of global governance that promises resource abundance and human wellbeing. Bioeconomy discourse makes visible shared notions of how the world is and how it should be that animate the world-making practices of bioeconomy. The dissertation analyzes the bioeconomy as simultaneously a product of existing institutional and nationally situated values and rationalities, and a significant site of performative novelty. It is an effort to reformulate existing projects in the biosciences—from technology regulation to market formation—and establish new rationalities of governance in the name of producing thoroughgoing transformations to both the global economy and to life itself.
Framing existing scientific and economic rationalities as suppressed and misdirected in their power to govern, bioeconomy proponents envision a novel order derivable from the proper conjugation of biological and economic rationalities. Through the lens of bioconstitutionalism, the dissertation elucidates how national, scientific and public rights and responsibilities are coproduced in relation to a sociotechnical imaginary of vital conjuring. Underwritten by the imaginary of vital conjuring, visions of a future transformed promise that abundance and order can be called up from a tangle of crisis and decay. The imaginary of vital conjuring marries a vision of the technological potential of biological life and the forms of economy capable of unlocking that potential. This vision of bioeconomy, the dissertation argues, is a vision of governance: of the right relationships between state, citizen and science.
ContributorsDoezema, Tess A (Author) / Hurlbut, James B (Thesis advisor) / Miller, Clark A. (Committee member) / Bennett, Gaymon (Committee member) / Arizona State University (Publisher)
Created2020
Description
Cancer has a financial impact worldwide. According to a study published by the American Cancer Society, “cancer accounts for 1.5% of global gross domestic product loss per year” (John & Ross, 2010). The legal and economic costs of death are not something normally addressed with patients prior to the occurrence of death. With an integrative approach, education may help reduce financial stressors for both the patient and family, while offering cost saving benefits to the facilities involved. Studies have shown that education pertaining to advanced care planning help to reduce hospital visits and the costs associated with the last six months of life. Integrating additional education in the form of legal and financial planning prior to death will benefit patients. This may benefit hospitals concurrently, by reducing hospital visits or length of stays, saving millions in Medicare costs to the hospital. Hospitals currently focus on the emotional, spiritual and intellectual needs of the patient post diagnosis of a terminal illness. Education related to funeral planning, preparing a will, and financial preparedness need to be included in the structured patient education offered at facilities. Individuals that have a higher socioeconomic status are typically more prepared for the costs associated with death. Offering financial education will allow more individuals experiencing the terminal diagnosis to prepare for their impending death.
ContributorsSimundson, Julie Lynn (Author) / Rodríguez, Yolanda (Thesis advisor) / Scheall, Scott (Thesis advisor) / Thomas, Kathy (Committee member) / Chanley, Jesse (Committee member) / Arizona State University (Publisher)
Created2020
Description
The landscape of science education is changing. Scientific research and the academy are both becoming increasingly complex, competitive, interdisciplinary, and international. Many federal research agencies, scientific professional societies, and science educators seem to agree on the importance of strong ethics education to help young scientists navigate this increasingly craggy terrain. But, what actually should be done? When it comes to teaching ethics to future scientists, is the apparent current emphasis on basic responsible conduct of research (RCR) sufficient, or should moral theory also be taught in science ethics education? In this thesis I try engage this question by focusing on an existing, related debate on whether moral theory should be part of teaching professional ethics more generally. After delving into the respective approaches promoted by the three primary participants in this debate (C. E. Harris, Bernard Gert, and Michael Davis) I unpack their views in order to ascertain their practical application potential and relative benefits. I then take these findings and apply them to ethics education in science, paying particular attention to its purported learning objectives. In the end I conclude that the presentation of these objectives suggests that moral theory may well be required in order for these objectives of ethics education in science to be fully achieved.
ContributorsMilleson, Valerye Michelle (Author) / Robert, Jason (Thesis advisor) / Herkert, Joseph (Committee member) / Ellison, Karin (Committee member) / Arizona State University (Publisher)
Created2014