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Tecolote Cinder Cone Ballistics: Volcanic Bomb Formation and Dynamics

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Cinder cones are common volcanic structures that occur in fields, and on the flanks of shield volcanoes, stratovolcanoes, and calderas. Because they are common structures, they have a significant possibility of impacting humans and human environments. As such, there is

Cinder cones are common volcanic structures that occur in fields, and on the flanks of shield volcanoes, stratovolcanoes, and calderas. Because they are common structures, they have a significant possibility of impacting humans and human environments. As such, there is a need to analyze cinder cones to get a better understanding of their eruptions and associated hazards. I will approach this analysis by focusing on volcanic bombs and ballistics, which are large clots of lava that are launched from the volcanic vent, follow ballistic trajectories, and can travel meters to a few kilometers from their source (e.g. Fagents and Wilson 1993; Waitt et al. 1995).
Tecolote Volcano in the Pinacate Volcanic Field in Mexico contains multiple vents within a horseshoe-shaped crater that have all produced various ejecta (Zawacki et al. 2019). The objectives of this research are to map ballistic distribution to understand the relationship between the source vent or vents and the bombs and ballistics that litter the region around Tecolote, and interpret the eruption conditions that ejected those bombs by using their distributions, morphologies, and fine-scale textures.
The findings of this work are that these bombs are apparently from the last stages of the eruption, succeeding the final lava flows. The interiors and exteriors of the bombs display different cooling rates which can are indicated by the fabric found within. Using this, certain characteristics of the bombs during eruption were extrapolated. The ‘cow pie’ bombs were determined to be the least viscous or contained a higher gas content at the time of eruption. Whereas the ribbon/rope bombs were determined to be the most viscous or contained a lesser gas content. Looking at the Southern Bomb Field site, it is dominated by large bombs that were during flight were molded into aerodynamic shapes. The Eastern Rim site is dominated by smaller bombs that appeared to be more liquid during the eruption. This difference in the two sites is a probable indication of at least two different eruptive events of different degrees of explosivity. Overall, aerodynamic bombs are more common and extend to greater distances from the presumed vent (up to 800 m), while very fluidal bombs are uncommon beyond 500 meters. Fluidal bombs (‘cow pie’, ‘ribbon’, ‘rope/spindle’) show a clear trend in decreasing size with distance from vent, whereas the size-distance trend is less dramatic for the aerodynamic bombs.

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2020-05

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Managerial Factors in Effective Workplace Communication: Analyzing the effects of Tailoring Communication Styles and Verbalizing Expectations in the Workplace

Description

This project analyzes the large array of managerial leadership research in congruence with the wide field of workplace communication to attempt to determine the importance of refining communication channels between managers and employees as well as articulate the core competencies

This project analyzes the large array of managerial leadership research in congruence with the wide field of workplace communication to attempt to determine the importance of refining communication channels between managers and employees as well as articulate the core competencies a manager should exhibit when practicing exemplary communication in their respective work environment. The preliminary sections of this thesis will establish the currently existing foundations utilized and narrow the wide range of research available to applicable information regarding positive workplace communication, influencing factors in a feedback loop from the employee’s perspective, as well as leadership aspects and actions a manager can alter or initiate to improve their workplace’s environment through communicational refinement. This research is supplemented with a survey that was administered to Arizona State University student leaders who were involved in coordinating the Regional Business Conference on the Polytechnic campus. The survey data is designed to either confirm or contradict the findings of the literature. The objective of this project is to synthesize an overview of a manager’s responsibilities and recommend actions to tailor and improve workplace communication

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2020-05

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Pandora: A Play by Abbey Toye

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Pandora is a play exploring our relationship with gendered technology through the lens of artificial intelligence. Can women be subjective under patriarchy? Do robots who look like women have subjectivity? Hoping to create a better version of ourselves, The Engineer

Pandora is a play exploring our relationship with gendered technology through the lens of artificial intelligence. Can women be subjective under patriarchy? Do robots who look like women have subjectivity? Hoping to create a better version of ourselves, The Engineer must navigate the loss of her creation, and Pandora must navigate their new world. The original premiere run was March 27-28, 2018, original cast: Caitlin Andelora, Rikki Tremblay, and Michael Tristano Jr.

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2018-05

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Tongues Becoming a Virtuous Woman: A Philosophical and Communicative Approach to Young Women's Speech

Description

Four hundred years after the word "virtuous," came to be associated with a woman's sexuality, today's female adolescent seemingly has everything. Yet, there is a psychological civil war raging in the psyche of the 21st century young American female because

Four hundred years after the word "virtuous," came to be associated with a woman's sexuality, today's female adolescent seemingly has everything. Yet, there is a psychological civil war raging in the psyche of the 21st century young American female because her mind is divided against itself due to the conflicting instructions of who and what she should be. She has so many choices; it is easy to become overwhelmed by them. Today's female youth is threatened. She communicates more and more, but her ability to express herself is inhibited because she is unsure of how to develop an authentic sense of self. It is a hermeneutic understanding of communication and what it means to be "virtuous" that can free young women to cultivate authentic self and continue to make decisions that support such a lifestyle. It is the aim of this thesis to reclaim the word "virtuous" for the benefit of today's young women. Deeper understanding of hermeneutics and communication allow us to view this word in a different light and read the entirety of Proverbs 31 as feminists. Young women have always faced challenges in adolescence, but a return to classical wisdom and philosophy will equip them to further advance themselves and their communities, rather than forcing them into a life of speaking tongue twisters. The virtuous young woman does not know what the future holds, but armed with the lessons of tradition and the fire of hope, she may speak a virtuous magic over the world with a tongue fit for the challenge.

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2018-05

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Communication Strategies for Effective Social Media Use in Local Governments

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An information influx and numerous modes of content delivery has resulted in local governments competing for the public's attention. A recent poll from the Public Technology Institute discovered that although 85% of Local Governments use social media to disseminate information

An information influx and numerous modes of content delivery has resulted in local governments competing for the public's attention. A recent poll from the Public Technology Institute discovered that although 85% of Local Governments use social media to disseminate information to their constituents, only 37% have an enterprise-wide social media strategy (PTI, 2017). Without a clear approach towards social media, Local Governments are failing to maximize their voices and often ineffective when reaching out to their constituents. Research has suggested, charisma is a successful tool for capturing an audience's attention and conveying a memorable message. Charisma can also be taught and executed not only through spoken rhetoric but in online social media platforms. Within this study, 18 local government employees participated in an educational workshop on the use of nine non-verbal "Charismatic Leadership Tactics". Participants completed a pre-workshop assignment which was later compared to a post-workshop assignment. Results showed, participants on average, increased their use of Charismatic Leadership Tactics by a mean of 61%. Researchers collected social media analytics one month prior and one month following the workshop from the City's social media accounts in which participants managed. Collectively, of the thirteen social media accounts, the overall total engagement was greater the month after the educational workshop compared to the month before the workshop. These results suggest charisma can be taught, charisma can be conveyed through micro-blogosphere platforms such as Twitter, and the use of Charismatic Leadership Tactics could be responsible for increasing follower engagement with social media content.

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2018-05

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Synthesis and Characterization of Laser Plasma that Produces Pseudocarbyne Using Laser Pulses

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Carbon allotropes are the basis for many exciting advancements in technology. While sp² and sp³ hybridizations are well understood, the sp¹ hybridized carbon has been elusive. However, with recent advances made using a pulsed laser ablation in liquid technique, sp¹

Carbon allotropes are the basis for many exciting advancements in technology. While sp² and sp³ hybridizations are well understood, the sp¹ hybridized carbon has been elusive. However, with recent advances made using a pulsed laser ablation in liquid technique, sp¹ hybridized carbon allotropes have been created. The fabricated carbon chain is composed of sp¹ and sp³ hybridized bonds, but it also incorporates nanoparticles such as gold or possibly silver to stabilize the chain. The polyyne generated in this process is called pseudocarbyne due to its striking resemblance to the theoretical carbyne. The formation of these carbon chains is yet to be fully understood, but significant progress has been made in determining the temperature of the plasma in which the pseudocarbyne is formed. When a 532 nm pulsed laser with a pulsed energy of 250 mJ and pulse length of 10ns is used to ablate a gold target, a peak temperature of 13400 K is measured. When measured using Laser-Induced Breakdown spectroscopy (LIBS) the average temperature of the neutral carbon plasma over one second was 4590±172 K. This temperature strongly suggests that the current theoretical model used to describe the temperature at which pseudocarbyne generates is accurate.

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2019-05

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A Case Study in the Developmental Origins of Health and Disease of Two Ancient Andean Agriculturalists

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As a child passes through the birth canal, they become inoculated with vital gram positive and gram-negative bacteria, aerobes and anaerobes. Breast milk helps to support this growing microbiome by providing oligosaccharides that support its proliferation. Breast milk can be

As a child passes through the birth canal, they become inoculated with vital gram positive and gram-negative bacteria, aerobes and anaerobes. Breast milk helps to support this growing microbiome by providing oligosaccharides that support its proliferation. Breast milk can be considered the most nutritious source of food available to a growing infant by providing the necessary nutrients, growth hormones and antibodies to promote digestive health, growth, and a strong immune system. The Developmental Origins of Health and Disease Theory (DOHaD) is a theory that suggests a growing fetus and nursing child's nutrients and immune system are dependent on the mother's exposure to nutrients and toxins. Studies have shown a positive correlation between the length of nursing and a child's overall health through life. In addition, consuming an enriched diet after weaning builds a strong immunological and nutritional basis from which the child can grow. This leads to improvements in a child's overall health, which has beneficial long-term effects on morbidity and mortality. This project applied the theory to two Middle Horizon (AD500-1100) individuals from Akapana, Tiwanaku, in the Lake Titicaca Basin, Bolivia. Stable nitrogen and carbon isotope analysis was applied to first molar serial samples of these two individuals to determine weaning age and early childhood diet. Both individuals were male; one male died in adolescence between the age of 9-15 years, and the other died as an elderly adult around the age of 50-59 years. The results showed that the male who died in adulthood was provisioned with supplemental and post-weaning foods high in animal protein, and received breast milk until around 37 months of age. The adolescent male was weaned between 11-12 months and consumed a diet dominated by C4 plants \u2014 most likely maize \u2014 with much less protein. The correlation between prolonged access to breast milk and a healthier and more nutritious childhood diet and longevity are consistent with the theory discussed above.

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2018-12

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Educating Future Engineers in the Art of Communication through Presenting

Description

Effective communication and engineering are not a natural pairing. The incongruence is because engineering students are focused on making, designing and analyzing. Since these are the core functions of the field there is not a direct focus on developing communication

Effective communication and engineering are not a natural pairing. The incongruence is because engineering students are focused on making, designing and analyzing. Since these are the core functions of the field there is not a direct focus on developing communication skills. This honors thesis explores the role and expectations for student engineers within the undergraduate engineering education experience to present and communicate ideas. The researchers interviewed faculty about their perspective on students' abilities with respect to their presentation skills to inform the design of a workshop series of interventions intended to make engineering students better communicators.

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2018-05

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Dating Deep-Sea Pelagic Clays with Osmium Isotopes to Reconstruct Sources of Iron to the South Pacific Gyre over 90 Million Years

Description

Iron (Fe) scarcity limits biological productivity in high-nutrient low-chlorophyll (HNLC) ocean regions. Thus, the input, output and abundance of Fe in seawater likely played a critical role in shaping the development of modern marine ecosystems and perhaps even contributed to

Iron (Fe) scarcity limits biological productivity in high-nutrient low-chlorophyll (HNLC) ocean regions. Thus, the input, output and abundance of Fe in seawater likely played a critical role in shaping the development of modern marine ecosystems and perhaps even contributed to past changes in Earth’s climate. Three sources of Fe—wind-blown dust, hydrothermal activity, and sediment dissolution—carry distinct Fe isotopic fingerprints, and can therefore be used to track Fe source variability through time. However, establishing the timing of this source variability through Earth’s history remains challenging because the major depocenters for dissolved Fe in the ocean lack well-established chronologies. This is due to the fact that they are difficult to date with traditional techniques such as biostratigraphy and radiometric dating. Here, I develop age models for sediments collected from the International Drilling Program Expedition 329 by measuring the Os (osmium) isotopic composition of the hydrogenous portion of the clays. These extractions enable dating of the clays by aligning the Os isotope patterns observed in the clays to those in a reference curve with absolute age constraints through the Cenozoic. Our preliminary data enable future development of chronologies for three sediment cores from the high-latitude South Pacific and Southern Oceans, and demonstrate a wider utility of this method to establish age constraints on pelagic sediments worldwide. Moreover, the preliminary Os isotopic data provides a critical first step needed to examine the changes in Fe (iron) sources and cycling on millions of years timescales. Fe isotopic analysis was conducted at the same sites in the South Pacific and demonstrates that there are significant changes in the sources of Fe to the Southern Ocean over the last 90 Ma. These results lay the groundwork for the exploration of basin-scale sources to Fe source changes, which will have implications for understanding how biological productivity relates to Fe source variability over geological timescales.

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2018-05

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Narrative and Communication of Science: Effective Science Through Polymathy

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The process of communicating science between the general public and scientific community has been marked by several challenges in the modern setting. Namely, scientists’ trepidation toward misinterpretation, jeopardization of professional reputability, and perception of two distinct arenas of communication has

The process of communicating science between the general public and scientific community has been marked by several challenges in the modern setting. Namely, scientists’ trepidation toward misinterpretation, jeopardization of professional reputability, and perception of two distinct arenas of communication has led to the perpetuation of the deficit model of communication. This model is exceptionally limiting as it effectively removes the scientists from the public sphere and can have devastating societal repercussions. The dialogue model of communication is a much more effective communicative model for the modern setting but has been met with resistance in its adoption. As communication as a whole is grounded in multiple foundational disciplines of psychology, philosophy, linguistics, and other fields, it would be apparent that the adoption of the principles of polymathy would serve to better prepare scientists to engage in mass communication with the public. As polymathy is a lifelong pursuit, the implementation of narrative training into collegiate undergraduate science curriculum would serve as a particularly potent beginning. That is, narrative's ability to reach near-universal audiences, enhance the recall and comprehension of complex subject matter, and forge an empathetic connection essential to effective communication is uniquely suited in ensuring a more effective communicative dynamic between the scientific community and the general public. As such, this thesis serves to advocate the adoption of narrative-based communicative training into undergraduate science curriculum not as separate courses, but rather as direct incorporation. This would serve to both revitalize polymathy in the modern age and prepare the next generation of scientists to be better equipped for the public dialogue.

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2020-05