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CJD, ACD, JB, and a one-in-million find: Reflections on a scholarly journey with the creator and inspiration of Sherlock Holmes
No full textAs I end my undergraduate collegiate career and begin to plan my next chapter, I think about the role that Sherlock Holmes has played on the last four years of my life. When I began my time at Kansas State University in the Fall of 2021, I was enrolled as a Medical Microbiology major on the Pre-Med track. Unbeknownst to me, I was about to be introduced into the world of public health, where the likes of Samuel Crumbine, Joseph Bell, and John Shaw Billings were waiting for me to unearth their stories. Growing up, I had somewhat of an interest in medicine and most definitely an interest in science, so when it came to deciding a major, Medical Microbiology felt right, but I was not exactly sure why. As a freshman in college, I hit the ground running enrolling myself into the “Hacking the MCAT” CAT Community; Public & Veterinary Health in the Age of Sherlock Holmes; and Phage Hunters with the intent to foster a degree that would ultimately lead to medical school. These three courses independently and collectively paved the way for what would become four years of intellectual curiosity combined with a consistent confusion surrounding what career pathway I should be on
Teacher use of the L2 and student attention in a Spanish language classroom: Establishing a functional relationship using single-case design
No full textDoctor of PhilosophyCurriculum and Instruction ProgramsSocorro G. HerreraMuch debate surrounds the effectiveness of a teacher’s use of a second language (L2) in world language (WL) classrooms. Although teacher educators and language teaching scholars identify the use of an L2 in instructional delivery as a high value skill (Ellis, 2005; Gilsan & Donato, 2017), there is a paucity of research in measuring its effectiveness on student outcomes (Chaudron, 2001; Egber, 2007; Norris & Ortega, 2000; Ortega, 2005; Plonsky & Gass, 2011; Plonsky, 2014). However, student attention to task can be used as an indicator of student success (Logan & Etherton, 2008; Logan, 1988). This study investigates the relationship between a WL teacher's use of the Spanish language and student attention to task in three level-one high school Spanish language classrooms, using a multiple-base line across group design. Results suggest that there is no significant effect on student attention to task regardless of whether the instructor is using the L1 (English) or the L2 (Spanish)
Extended program notes from a Master’s Recital of songs by Joaquín Turina, Jake Heggie, Emile Paladilhe and Johannes Brahms
No full textThis report contains information and analysis on the repertoire and ultimate performance of the vocal recital of Master’s Candidate, Chris Melton. The chapters are delineated by composer and relate a brief biography of the composer as well as some musical analysis from the author. The selected repertoire consists of Poema en forma de canciones by Joaquín Turina, Of laughter and farewell by Jake Heggie, and select songs by Johannes Brahms and Émile Paladilhe
Creating Positive Futures 2024
No full textSummary of the 2024 activities of the Kansas PRIDE program now known as Kansas Community Empowerment and affiliated communities
“With the Greatest Admiration:” Lessons Learned from Correspondence Among Foundational Leaders in Public Health
No full textDuring the late nineteenth century, modern medicine was taking off due to revolutions in scientific discovery. New fields of medicine like bacteriology and sanitation were established, with advancements in these fields leading to an increase in overall life expectancy. Leaders like Dr. John Shaw Billings, Dr. George Miller Sternberg, and Dr. Robert Koch revolutionized medicine by discovering, establishing, and communicating public health practices. With my mentor Dr. Kastner, and fellow students, I visited the National Library of Medicine in Bethesda, Maryland to explore primary documents from these leaders. In our archival research, I found a letter written by Koch to Sternberg, suggesting a positive relationship between the two leaders across the Atlantic. Koch’s communication about infectious diseases and commentary on prevention measures, like city water design, particularly piqued my interest. This letter suggests that Koch was a firm believer in applying the Germ Theory he learned in a lab to the real world. I also included material from Dr. Kastner’s UHP course I took in 2021, detailing two letters showing correspondence between physicians and medical officers between countries. This collaboration serves as a model for how public health practices should and do often look today. With Dr. Kastner, I plan to publish the results of this project in K-State's One Health newsletter and submit it for my honors project
Atomically thin molybdenum disulfide prepared via chemical vapor deposition and mechanical exfoliation: aging studies and reliability testing
No full textMaster of ScienceDepartment of Mechanical and Nuclear EngineeringGurpreet SinghTransition metal dichalcogenides (TMDs) are a class of two-dimensional materials that have attracted significant attention due to their unique electronic, optical, and mechanical properties, which makes them promising candidates for next-generation electronic, optoelectronic, and sensing devices. Among TMDs, molybdenum disulfide (MoS₂) stands out for its semiconducting nature, large band gap (1.9 eV for monolayer MoS₂), and high career mobility (50-200 cm²V⁻¹s⁻¹), which positions it as a key material for various applications. However, like most TMDs, MoS₂ suffers stability issues when subjected to extreme conditions, such as elevated temperatures and atmospheric environments, limiting its applications in next-generation electronics, optoelectronics, and sensing devices.
This study reports on the synthesis of atomically thin two-dimensional MoS₂ using both chemical vapor deposition (CVD) and mechanical exfoliation methods, the aging studies, and the electrical performance of the synthesized MoS₂ flakes and MoS₂ devices, respectively. The study is divided into two parts. In the first part, we aimed to modify an existing CVD furnace in the lab to produce large-area, atomically thin MoS₂ flakes following procedures described in published works. In the initial CVD experiments, we replicated the same conditions as reported in literature, including parameters such as growth temperature, argon gas flow rate, pressure, amounts of molybdenum and sulfur precursors, heating rate, and growth time. Large area MoS₂ flakes could not be observed, instead, the synthesized material consisted of particles and thick films.
In order to achieve thin, large-area flakes, we varied the growth parameters such as the growth temperature, pressure, amounts of precursor, and argon gas flow rate. The optimized growth conditions (Growth temperature=850 °C, Agon flow rate=100 sccm, Sulfur=1000 mg, MoO₃=50 mg, Growth time=10 mins, Heating rate = 13℃/min) successfully yielded large area, atomically thin MoS₂ flakes. In addition, the distance of the growth substrates (Si/SiO₂ wafers) from precursor source were studied. Two substrates were arranged faced down and close together , covering one side of the ceramic vessel or boat supporting the wafers, with no gap between the wafers and one side of the end of the boat, resulting in the growth of large MoS₂ flakes across the entire wafer surface. Repeating the experiment under the same conditions yielded consistent results, confirming that the chosen growth parameters and wafer arrangement reliably produce MoS₂ flakes. Later, we explored the effects of argon gas flow rate on MoS₂ thin flakes by varying the argon gas flow rates during the synthesis of MoS₂ thin films while maintaining the other conditions. The results showed that the argon gas flow rate had an influence on the size of the MoS₂ flakes.
In the second part of the study, we conducted aging studies on the MoS₂ films fabricated by CVD as well as those produced via mechanical exfoliation. The thin MoS₂ films on SiO₂/Si wafers were heated on a hot plate at 200 ℃ for one month in ambient air. The degradation of MoS₂ over time was characterized using optical microscopy, Raman spectroscopy, and Image J software. It was observed that the CVD-grown MoS₂ developed some surface cracks, experienced a reduction in flake size or oxidative etching at the edges, and thinning or reduction in its thickness, whereas the mechanically exfoliated MoS₂ flakes showed a reduction in size and thickness but no visible cracks throughout the heating period. These results indicate that mechanically exfoliated MoS₂ flakes show relatively greater thermal stability, while CVD-grown MoS₂ flakes experienced more pronounced degradation under thermal stress.
Additionally, we investigated the effects of heating on CVD-grown MoS₂ two-terminal electrical devices. The chips were fabricated using photolithography and subject to 150 °C on a hot plate for approximately 1100 hours. Current-voltage (I-V) measurements were carried out regularly using a two-point probe station. We measured the current at 5V on different days and observed that the current increased at the same voltage in the MoS₂-based device. These findings provide insights into the influence of heating MoS₂-based devices in the air. They contribute to the broader understanding of MoS₂ reliability and pave the way for its application in nanoelectronics, optoelectronics, and sensors
Shaping the Future of the Global Food Systems Leadership Program: An Approach to Interdisciplinary Education
No full textMary Kay SiefersThe Global Food Systems Leadership (GFSL) program at Kansas State University is a joint secondary major housed between the Staley School of Leadership and the College of Agriculture. The program helps equip students to address complex issues within the global food system. This honors project explores what would be needed to reform and develop the program to be offered as both an undergraduate major and a certificate. Through multiple methods, I interviewed those who founded the program, drew comparisons from peer and aspirational institutions, aligned the program with three of K-State's strategic plans, and analyzed feedback from student surveys. These methods allowed me to identify potential curriculum plans for both degree offerings, applied learning opportunities, target students for the program, and strategies for recruitment. Key findings from the survey demonstrate students' desire for program expansion through developing a standalone major and modifying the secondary major into a certificate option. This proposal then outlined the pathway for program approval at each step. Lastly, this project argues the importance and value of more interdisciplinary approaches to education and how the Global Food Systems Leadership program better prepares students to understand and lead in addressing the global food systems' most complex challenges, like food security, poverty, and climate change
Blueprint for an Agricultural Recovery Plan for Ukraine
No full textRussia’s full-scale invasion of Ukraine in February 2022 significantly disrupted Ukraine’s agriculture sector, which is a pillar of its national economy and a key player in global food trade. It could take years or even
decades for Ukraine’s farmland, agricultural infrastructure, logistics routes, agricultural labor force, and agribusiness environment to recover from the destruction suffered throughout the war. This report aims to provide the government of Ukraine and its partners with a sequenced road map for Ukraine’s agricultural recovery that positions the sector for a sustainable and economically competitive future
Environmental & Architectural Phenomenology Cumulative Index, Vols. 1–35 (1990–2024)
No full textThis index includes EAP entries except reference items listed in “citations received.” Entries have been identified in the following order: volume number, issue number, and page(s). Thus 3,2:10, for example, refers to volume 3, issue 2, page 10. Volume numbers by years are as follows: vol. 1—1990; vol. 2—1991; vol. 3—1992; vol. 4—1993; vol. 5—1994; vol. 6—1995; vol. 7—1996; vol. 8—1997; vol. 9—1998; vol. 10—1999; vol. 11—2000; vol. 12—2001; vol. 13—2002; vol. 14—2003; vol. 15—2004; vol. 16—2005; vol. 17—2006; vol. 18—2007; vol. 19—2008; vol. 20—2009; vol. 21—2010; vol. 22—2011; vol. 23—2012; vol. 24—2013; vol. 25—2014; vol. 26—2015; vol. 27—2016; vol. 28—2017; vol. 29—2018; vol. 30—2019; vol. 31—2020; vol. 32—2021; vol. 33—2022; vol. 34—2023; vol. 35—2024; vol. 36—2025 [note EAP became digital-copy-only in 2016 and shifted from three to two issues per year]
Mantle source evolution along the South Atlantic Transect (31?S) records a transition from HIMU plume component to depleted MORB
No full textInteractions between mantle plumes and mid-ocean ridges create considerable spatial variation in composition along ridge axes. What is less well known is the temporal variation in MORB compositions along single mantle flow lines. IODP Expeditions 390/393/390C/395E recovered basaltic basement from seven sites along such a flow line, the South Atlantic Transect (SAT), on the western flank of the Mid-Atlantic Ridge at ~ 31oS. SAT basalts ?49 Ma are tholeiitic with isotopic compositions similar to MORBs from the Mid-Atlantic Ridge between 25oS 28oS. Basement from the oldest SAT site (U1556; 61.2 Ma) is more complex, consisting of three stratigraphic sequences (SSA, SSB and SSC) ranging from MORB-like at the bottom (SSC) to Ocean Island Basalt (OIB)-like at the top (SSA); their isotopic compositions are distinct relative to both younger SAT basalts and the EM1-type Tristan Gough plume that dominates the region, being more akin to HIMU. The presence of previously unrecognized HIMU mantle in this region is due to one or more ridge jumps that occurred west of the Walvis Ridge at ~65 Ma. These ridge jumps relocated the spreading axis over a portion of the HIMU plume that had previously given rise to late-stage, off-axis HIMU magmatism adjacent to the Walvis Ridge. Upwelling beneath the spreading center progressively tapped a variably depleted source, reproducing it in reverse in the volcanic stratigraphy at Site U1556. Continued upwelling beneath the spreading center removed most of the HIMU plume material within ~12 Myr, the time of Site U1558 (49.2 Ma)