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Masters of Disguise: The Camouflaged Secrets of Water Scorpions
No full textMasters of Disguise: The Camouflaged Secrets of Water Scorpion
MARINE ENERGY CROSS-FLOW TURBINES IN HIGH CONFINEMENT
No full textMarine renewable energy technology has recently garnered significant interest. Among the various technologies that extract usable power from fluid flows, cross-flow turbines (CFTs) are particularly well-suited for use in river and tidal channels. CFTs are advantageous due to their ability to operate with lower relative incoming fluid velocities, their insensitivity to flow direction, and their suitability for deployment in array configurations [5,8]. To improve the efficiency of CFTs, various strategies have been explored to augment power generation. Geometrical optimisations including blade shape [33], pitch angle variation, blade count [25, 27], varying chord to radius ratios [21, 22], various array configurations [5, 8, 14], or turbine control or operation strategies such as intracycle blade velocity control [30], active pitch control [12], and confinement exploitation [19, 20, 22]. This thesis focuses on exploring the subject of the augmentation of power generated via confinement exploitation
INTERPLAY OF SUPERCONDUCTIVITY, MAGNETISM, AND SPIN-ORBIT COUPLING IN QUANTUM MATERIALS
No full textThis dissertation explores two central aspects of quantum materials research: the theoretical investigation of the interplay among superconductivity, magnetism, and spin-orbit coupling (SOC), and the application of artificial intelligence (AI)-assisted methods for discovering novel quantum materials. Theoretical investigations focus on Kramers degenerate magnetic orders coexisting with superconductivity, revealing conditions for suppression or stabilization of superconducting states, including symmetry-required pair density wave (PDW) superconductivity and Bogoliubov Fermi surfaces (BFSs). These ideas are applied to key materials such as CeRhAs and the loop current order in cuprates. In the Fe-based superconductor FeSeS, the emergence of nematic BFSs is traced to magnetic toroidal order, demonstrating an intricate interplay between superconductivity, magnetism, and SOC. A separate study of the eta-carbide superconductor TiIrO focuses on superconductivity and SOC, showing that nonsymmorphic symmetry and strong SOC drive an unusually high upper critical field. Finally, an AI-driven framework combining graph neural network (GNN) and density functional theory (DFT) is used to identify 23 parity-time-reversal-symmetric (PT-symmetric) odd-parity antiferromagnetic (AFM1) materials, whose exotic responses stem from the interplay between magnetism and SOC. Collectively, this dissertation advances both the fundamental understanding of quantum material phenomena and innovative methodologies for quantum materials discovery
Using FANTASY (Fully Automated pythoN Tool for AGN Spectra analYsis) to Explore the Diversity of Quasar Phenomenology
No full textresearch poster presented at the Universities of Wisconsin Symposium for Undergraduate Research, Scholarly, and Creative ActivityQuasars give us a glimpse into how the physics works in the center of active galactic nuclei (AGN) and its surroundings environment. This research utilizes FANTASY, and open-source Python tool for multi-component AGN spectral fitting in the optical rest-frame (3600-8000 A). We analyze low-redshift (z 0.7 Mpc, and (3) quasars with extreme colors. This poster presents progress on spectral modeling and initial findings, with ongoing work aimed at refining emission-line diagnostics and quasar classification
WDNR SUrface Water Grants: Developing a Strong Grant
No full textWDNR SUrface Water Grants: Developing a Strong Gran
Manual Removal of EWM in the Right Situations
No full textManual Removal of EWM in the Right Situation
THE ADOPTION & WELFARE EFFECTS OF LOW-INCOME HEAT PUMP INCENTIVES
No full textThis research estimates the impact of means-tested incentives on heat pump adoption rates. We exploit the differences in subsidies between two utility service territories in Benton County, Washington to identify the adoption impacts of new incentives using spatial discontinuity and within-household panel analysis. Additionally, a series of analytical tests are then used to identify opportunities for policy improvement. We find that targeted incentives may drive some additional heat pump adoption among eligible households, but these effects are very small, and unlikely to overcome countervailing market forces. Additionally, consistent with theory, we find that newer incentives are more likely to drive additional technology adoptions than older, existing policies. We further also assess the calibration of the targeted incentives in terms of rebate levels for each group, and eligibility thresholds. Here, we find that cost-neutral progressive shifts may produce higher adoption but only at the extremes. Finally, we discuss the ramifications of our findings on future targeted incentive policies for heat pumps and other technologies. This research lays the groundwork for more detailed assessments to compare the emissions impact and cost of abatement of targeted and non-targeted policy programs
Oral History Interview, Kelsey Foster (2543)
No full textIn her July 2025 interview with Edwin Thomas, Kelsey Foster describes her role in the Gender & Women’s Studies (GWS) Department at the University of Wisconsin-Madison, both as a student and staff member. To learn more about this oral history, download & review the index first (or transcript if available). It will help determine which audio file(s) to download & listen to.In her July 2025 interview with Edwin Thomas, Kelsey Foster describes her role in the Gender & Women’s Studies (GWS) Department at the University of Wisconsin-Madison. As the administrative assistant in the Office of the Gender & Women’s Studies Librarian, her position is multi-faceted, involving supervising students, coordinating databases, and helping to maintain the GWS Librarian’s services. Foster also attended UW-Madison for her undergraduate degree, and she describes how the political climate in 2011 influenced her education. Some professors opened discussions to address protests and even cancelled classes, while others stuck to their original syllabi. She describes how she was originally a theater major, but the GWS field caught her attention with the important questions it sought to answer. Foster also discusses how the GWS Department has evolved since her undergraduate education. This interview was conducted for inclusion into the GWS @ 50 Oral History Project of the UW-Madison Archives & Records Management oral history collection
Non-antibiotic alternative strategies in poultry: Evaluating organic farming systems and integrated vaccination-nutrition strategies
No full textPoultry health, human health and economic losses caused by pathogenic zoonotic bacteria including Salmonella remain a major concern, despite ongoing prevention and control efforts. The use of antibiotics for prophylaxis, treatment and growth promotion has led to selection and dissemination of antibiotic-resistant bacteria which significantly impacts human health, animal health as well as the environmental health. To mitigate antimicrobial resistance (AMR), poultry producers have increasingly adopted non-antibiotic strategies including organic farming practices to satisfy the consumer demands, vaccination programs, and nutritional interventions. However, it is not clear to which extent organic farming systems reduce antibiotic resistance compared to conventional counterparts. Furthermore, interactions between Salmonella vaccines and nutritional dietary components such as SQMFe® iron (an organic iron with a complexation process that enables time- and tissue-specific release of this critical nutrient) has not been characterized in poultry. This thesis addresses these knowledge gaps through two studies. Chapter 1 presents a global comparison of antimicrobial resistance trends between organic and conventional farming systems across food animal products and environment and how various regulatory policies impact AMR prevalence across multiple geographical regions. Chapter 2 examines the interactive effects of Salmonella vaccination and supplemental iron (SQMFe®) on the poultry cecal microbiota composition. The results show that organic farming systems have lower AMR prevalence compared to conventional counterparts. Additionally, SQM® Iron enriched fermentative taxa such as Pygmaiobacter and Odoribacter, while reducing Streptococcus. Vaccination alone promoted short-chain fatty acid (SCFA)-producing members of the Bacillota phylum. However, when vaccination was combined with SQM® Iron, several beneficial taxa were suppressed and Staphylococcus was markedly increased, suggesting that co-management strategies can produce unexpected and potentially counterproductive outcomes. These findings indicate that integrated approaches including organic farming, vaccination and micronutrient supplementation can reduce AMR and selectively remodel the poultry gut microbiome. This work has implication for nutrient utilization, developing targeted policy to control AMR and zoonotic pathogens while supporting animal health