Cyanidioschyzon merolae, a unicellular extremophilic red algae, is found in hot, acidic groundwater with high concentrations of heavy metals. The association makes it an ideal species to investigate mechanisms of heavy metal tolerance, which may lead to its use in phyco- remediation wherein photosynthetic algae use biological processes to bind and remove toxic substances. Two strains of C. merolae, MS1 and 10D, are genetically very similar, despite the latter lacking a cell wall. To investigate heavy metal toxicity and the role of the cell wall, the two strains of C. merolae were exposed to various concentrations of cadmium and cultures were evaluated spectrophotometrically to assess the impact on growth over a 7-day period. The IC50 values of MS1 and 10D were estimated to be 15 and 0.5 ppm CdCl2 respectively, indicating that the cell wall provides protection under the presence of heavy metals. Cadmium uptake was also measured using Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) to investigate metal ion exclusion and acidocalcisome-Cd2+ chelation as potential tolerance mechanisms. ICP-OES data indicated that 10D inoculum pretreated with phosphate depletion and re-supplementation, to induce Cd chelation in acidocalcisomes, then cultured in MA2 had the highest biomass Cd content of all strains and treatments (0.321 ppm; 31.55%). The cell wall clearly promotes survival and resistance to higher concentrations of environmental heavy metals, however, neither MS1 nor 10D seemed to be strains primed for phyco-remediation of heavy metal contamination through cellular uptake and sequestration.

This paper focuses on the fabrication and characterization of shape memory polymer (SMP) with interspersed carbon-based nanofillers which showed significant improvements in quasi-static and dynamic mechanical properties. These composite shape memory polymers have been fabricated using a specialized acetone solvent mixing technique to achieve high dispersion. The effect of individual and hybrid additions of graphene oxide (GO) and carbon nanotubes (CNT) with a total nanofiller content of 2 wt.% was investigated. These high dispersion SMPs showed significant improvements in tensile moduli (up to 25% over baseline), tensile strength (up to 15% over baseline), and strain to failure (up to 75% over baseline), owing to crack propagation hindrance induced by the carbon nanofillers. Further, dynamic mechanical analysis (DMA) showed a minimal reduction in polymer chain mobility and improvements in storage modulus. Dispersion is characterized by micrograph acquisition and subsequent binary image processing.

As a fashion design student with career interest in design and costuming, I decided to design and build a Ready-to-Wear collection for my senior thesis. The steps to build a collection include: concept research, initial concept sketching, create a moodboard and colorboard, select textiles/sourcing textiles, finalize sketches, create technical flats, patternmaking and draping, testing and swatching design details (such as embroidery, seam and construction details, finishes/trims), sewing mock-ups/toiles, and finally construct the garments in the fashion fabrics. Due to my collection being featured in the ASU Spring 2022 fashion show there were some additional steps I took to finalize this collection including: model sourcing, fittings, alterations, and hair and makeup conceptualization for the show. I began conceptualizing this collection in the fall of 2021 and began sewing in January 2022. The ASU fashion show was March 26, 2022. I found inspiration for this collection from my love of tattoo art, specifically by the history and imagery of American Traditionalism tattoo art around the turn of the 20th century. As an avid fan of tattoo art, I have become more appreciative of tattooing as a pure form of art and the elements required to have a well done American Traditional style tattoo. Such elements include: contrast, shadows, clean line work, as well as perception/silhouettes. This type of classic tattoo art also involves heavy symbolism, mostly derived from animals and the ocean. An additional concept I am applying to my collection is corsetry, specifically in the style of the early 1900’s. This time period is cohesive with the tattoo era I am focusing on, as well as it is the era that corsetry began to include decorative elements in addition to being for structural and shaping purposes. I began to have an interest in corsetry from my love of complicated construction, as well as costumery. I feel like corsets as an outer layer is a great way to incorporate costumery into a traditional Ready-To-Wear-Collection. I have decided to apply tattoo art in multiple ways to my collection- the first within my colorways. American Traditional tattoo art at the turn of the 20th century only used black, green, yellow, and red ink. I plan to utilize these colors in the corsets only. The modern and classic silhouettes utilized in the base clothing will be in various shades of browns and tans in order to represent skin tones, therefore the corsets are the “tattoos” on the “skin”. The tattoo art will be applied further within the corsets, as I will be using the classic imagery/ symbols as decorative features on the corsets- done possibly with beadwork, embroidery, and paint/ screen printing. I hope to mostly utilize natural fiber-based textile for their sustainability purposes, such as wool and silks. However, any synthetic materials will be sourced from deadstock in order to still hold myself accountable to sustainability.

From Anglo-American Martial and Social Culture to a Distinct American Martial and Social Culture is a historical thesis which documents the origins and perspectives of English settlers in North America from 1607 until American independence recognized in the 1783 Treaty of Paris. Over the course of these 176 years, the mindset of those living on the American frontier was analyzed through the martial and social culture that developed. Some examples of Anglo-American adaptations to living on the American frontier were legislative assemblies and a continent-spanning local militia. Questions ranging from why the English settlers chose to live in the Americas to how they overcame sectional differences to form the United States of America were questions that this thesis attempted to answer. The conclusion from analyzing primary and secondary sources shows the initial development of an Anglo-American culture which over the course of more than a century diverges into a unique American identity, distinct from British subjects and agents of empire. Whereas British citizens in the Americas started out as staunch defenders and agents of the global British Empire, this thesis documents the transformation of British citizens in North America from a British cultural identity to a distinct American cultural identity.

The COVID-19 pandemic caused uncertainty and changing public health recommendations across the world as our understanding of the SARS-CoV-2 virus changed. Following a preliminary assessment by the World Health Organization, non-steroidal anti-inflammatory drugs were said to worsen symptoms and should be avoided before the recommendation was subsequently revoked. There also was pain associated with infection, leading to the hypothesis that use of over-the-counter pain medication increases may correlate with increases of SARS-CoV-2 infections. Wastewater samples were collected from two communities in Tempe, AZ from December 2019 to July 2020 (n = 35) and were analyzed by liquid chromatography tandem mass spectrometry (LC-MS/MS) to identify levels of acetaminophen, ibuprofen and their metabolites, acetaminophen sulfate and carboxy-ibuprofen. Results showed 100% detection frequency of all analytes in all samples across the duration of the study. Mass loadings of acetaminophen (918.4 g day-1 +/- 354.8 g day-1) were higher than ibuprofen (182.9 g day-1 +/- 49.8 g day-1), potentially driven by flushing behaviors rather than consumption activities. However, ibuprofen was more heavily consumed than acetaminophen across all days of the study period. Comparisons to COVID-19 clinical cases data showed increased use in ibuprofen with increases in clinical cases loads, while acetaminophen showed no change, suggesting ibuprofen was the over the counter (OTC) medication of choice during the first wave of the pandemic.