Digital Commons Network^™

Effect Of Pyrolysis Temperature On Si Release Of Alkali-Enhanced Si-Rich Biochar And Plant Response, Meng Wang, Negar D. Tafti, Jim J. Wang, Xudong Wang

Faculty Publications

Recent studies have shown that silicon (Si) dissolution from biochar may be influenced by the pyrolysis temperature. In addition, the enhancement of biochar by treatment with alkali has been proposed to produce a Si source that can be used for environmentally friendly plant disease control. In this study, biochars from rice straw and rice husk pretreated with KOH, CaO and K2CO3 and then pyrolyzed at 350, 450 and 550 °C were prepared to evaluate the effects of pyrolysis temperature on Si release and plant uptake from alkali-enhanced Si-rich biochar. Extractable Si and dissolution Si from the prepared biochars were assessed …

Reaction-Diffusion Hydrogels From Urease Enzyme Particles For Patterned Coatings, Anthony Q. Mai, Tamás Bánsági, Annette F. Taylor, John A. Pojman

Faculty Publications

The reaction and diffusion of small molecules is used to initiate the formation of protective polymeric layers, or biofilms, that attach cells to surfaces. Here, inspired by biofilm formation, we present a general method for the growth of hydrogels from urease enzyme-particles by combining production of ammonia with a pH-regulated polymerization reaction in solution. We show through experiments and simulations how the propagating basic front and thiol-acrylate polymerization were continuously maintained by the localized urease reaction in the presence of urea, resulting in hydrogel layers around the enzyme particles at surfaces, interfaces or in motion. The hydrogels adhere the enzyme-particles …

Spectroscopic Studies Of The Interaction Between Phosphorus Heterocycles And Cytochrome P450, Dumei Ma, Libo Zhang, Yingwu Yin, Yuxing Gao, Qian Wang

Faculty Publications

P450 fatty acid decarboxylase OleT from Staphylococcus aureus (OleT_SA) is a novel cytochrome P450 enzyme that catalyzes the oxidative decarboxylation of fatty acids to yield primarily terminal alkenes and CO₂ or minor α- and β-hydroxylated fatty acids as side-products. In this work, the interactions between a series of cycloalkyl phosphorus heterocycles (CPHs) and OleT_SA were investigated in detail by fluorescence titration experiment, ultraviolet–visible (UV–vis) and ³¹P NMR spectroscopies. Fluorescence titration experiment results clearly showed that a dynamic quenching occurred when CPH-6, a representative CPHs, interacted with OleT_SA with a binding constant value of 15.2 …

A Novel Big Data Approach To Measure And Visualize Urban Accessibility, Yuqin Jiang, Diansheng Guo, Zhenlong Li, Michael E. Hodgson

Faculty Publications

Accessibility is a topic of interest to multiple disciplines for a long time. In the last decade, the increasing availability of data may have exceeded the development of accessibility modeling approaches, resulting in a modeling gap. In part, this modeling gap may have resulted from the differences needed for single versus multimodal opportunities for access to services. With a focus on large volumes of transportation data, a new measurement approach, called Urban Accessibility Relative Index (UARI), was developed for the integration of multi-mode transportation big data, including taxi, bus, and subway, to quantify, visualize and understand the spatiotemporal patterns of …

Covid-19 Vaccine Acceptance In Older Syrian Refugees: Preliminary Findings From An Ongoing Study, Noura Salibi, Sawsan Abdulrahim, Maria El Haddad, Stephanie Bassil, Zeina El Khoury, Hala Ghattas Ph.D., Stephen J. Mccall

Faculty Publications

This study assesses COVID-19 vaccine intentions among a sample of older Syrian refugee beneficiaries of a humanitarian organization in Lebanon, and explores factors associated with vaccine refusal. The findings are part of an ongoing rotating 4-wave panel study. The sample was limited to participants from the first panel who completed a phone interview between January-February 2021. Out of 1,037 beneficiaries, almost a third (29%) reported no intention to vaccinate. Reasons for refusal were: newness of the vaccine (35%); preference to maintain precaution measures (21%); belief that the COVID-19 vaccine is not essential (21%); and other (23%). COVID-19 vaccine refusal was …

Occasions, Purposes, And Contexts For Offering Snacks To Preschool-Aged Children: Schemas Of Caregivers With Low-Income Backgrounds, Christine E. Blake, Kirsten K. Davison, Rachel E. Blaine, Jennifer O. Fisher

Faculty Publications

Objective Snacking among preschool aged children is nearly universal and has been associated with overconsumed nutrients, particularly solid fats and added sugars (SoFAS). This research examined caregivers’ schemas, or cognitive frameworks, for offering snacks to preschool-aged children.

Methods A qualitative design utilizing card sort methods was employed. Participants were 59 Black, Hispanic, and White caregivers of children aged 3–5 years with low-income backgrounds. Caregivers sorted 63 cards with images of commonly consumed foods/beverages by preschool-aged children in three separate card sorts to characterize snacking occasions, purposes, and contexts. The mean SoFAS content (kcal/100 g) of foods/beverages was evaluated by snacking …

Actions In Global Nutrition Initiatives To Promote Sustainable Healthy Diets, Ligia I. Reyes, Shilpa V. Constantinides, Shiva Bhandari, Edward A. Frongillo Jr. Ph.D., Pepijn Schreinemachers, Sigrid Wertheim-Heck, Helen Walls, Michelle Holdsworth, Amos Laar, Tuan Nguyen, Christopher Turner, Kate Wallard, Christine E. Blake Ph.D., Rd

Faculty Publications

Multiple recent global nutrition initiatives have recommended actions to transform food systems to improve food environments and food choice. This study aimed to identify actions recommended by these initiatives and understand their similarities and differences. Twelve global nutrition initiatives were reviewed, collectively spanning 13 action themes and accompanying strategies. Action themes were analyzed according to primary focus on either food environments and their food system drivers or food choice. Representation of the 13 actions varied across initiatives. Some actions overlapped; others were infrequently represented. Strategies targeting food environments and their food system drivers were more frequently recommended than strategies targeting …

Fostering Distance Education: Lessons From A United States-England Partnered Collaborative Online International Learning Approach, Lucy A. Ingram, Courtney M. Monroe, Haley Wright, Amy Burrell, Rebecca Jenks, Simon Cheung, Daniela B. Friedman Ph.D.

Faculty Publications

Collaborative Online International Learning (COIL) is a teaching and learning approach whereby entire courses or modules are co-developed and team taught by instructors from different institutions for students of both institutions. Since 2006, the approach has been gaining in mass appeal; however, considering our present-day global coronavirus pandemic, COILs have a renewed relevance in academia. Faculty from the University of South Carolina (United States) and Coventry University (England) embarked on a COIL partnership yielding a valuable experience that can serve as a model for other institutions that are interested in developing innovative and cross-cultural distance learning opportunities. The purpose of …

An Acute Naproxen Dose Does Not Affect Core Temperature Or Interleukin-6 During Cycling In A Hot Environment, Dawn M. Emerson, Stephen Cl Chen, Toni M. Torres-Mcgehee, Craig E. Pfeifer, Charles C. Emerson, J Mark Davis

Faculty Publications

Non-steroidal anti-inflammatory drugs' anti-pyretic and anti-inflammatory effects has led some individuals to theorize these medications may blunt core body temperature (Tc) increases during exercise. We utilized a double-blind, randomized, and counterbalanced cross-over design to examine the effects of a 24-h naproxen dose (3-220 mg naproxen pills) and placebo (0 mg naproxen) on Tc and plasma interleukin-6 (IL-6) concentrations during cycling in a hot or ambient environment. Participants ( = 11; 6 male, 5 female; age = 27.8 ± 6.5 years, weight = 79.1 ± 17.9 kg, height = 177 ± 9.5 cm) completed 4 conditions: 1) placebo and ambient (Control); …

Impact Of Metropolization On The Crime Structure (Case Study Of Provincial Capitals In Poland), Natalia Sypion-Dutkowska, Michael Leitner, Marek Dutkowski

Faculty Publications

The aim of this study is to verify the hypothesis that the rapid metropolization process that has been taking place in large Polish cities since the beginning of the second phase of post-communist transition in 2000 leads to their socio-economic diversity, which is manifested, among others, in the differentiation of the level and structure of crime. Introduced into the discourse of this paper are subsequent stages of metropolization, which are called potential, initiating, advanced, and mature and which the examined cities have achieved so far. These stages have led to various economic and social effects, which resulted in changes in …

Integrity, Freedom, And Trust – A Comprehensive Understanding Of Corruption And Its Effect On Human Rights, Nelu Burcea, Lucile Sabas, Carlos Biaggi

Faculty Publications

Book of Abstracts, UNEQUAL WORLD Conference Third Edition

Beverage Bottle Capacity, Packaging Efficiency, And The Potential For Plastic Waste Reduction, Rafael Becerril-Arreola, R. E. Bucklin

Faculty Publications

Plastic pollution is a pressing issue because authorities struggle to contain and process the enormous amount of waste produced. We study the potential for reducing plastic waste by examining the efficiency with which different polyethylene terephthalate (PET) bottles deliver beverages. We find that 80% of the variation in bottle weight is explained by bottle capacity, 16% by product category, and 1% by brand. Bottle weight is quadratic and convex function of capacity, which implies that medium capacity bottles are most efficient at delivering consumable product. Local data on PET bottle sales and municipal waste recovery validate the findings. A 20% …

Third International Conference On Tourmaline (Tur2021), Darrell Henry, Barbara Dutrow, Horst Marschall, Vincent Van Hinsberg

Faculty Publications

No abstract provided.

Geochemical Characteristics Of Back-Arc Basin Lower Crust And Upper Mantle At Final Spreading Stage Of Shikoku Basin: An Example Of Mado Megamullion, Norikatsu Akizawa, Yasuhiko Ohara, Kyoko Okino, Osamu Ishizuka, Hiroyuki Yamashita, Shiki Machida, Alessio Sanfilippo, Valentin Basch, Jonathan E. Snow, Atlanta Sen, Ken Ichi Hirauchi, Katsuyoshi Michibayashi, Yumiko Harigane, Masakazu Fujii, Hisashi Asanuma, Takafumi Hirata

Faculty Publications

This paper explores the evolutional process of back-arc basin (BAB) magma system at final spreading stage of extinct BAB, Shikoku Basin (Philippine Sea) and assesses its tectonic evolution using a newly discovered oceanic core complex, the Mado Megamullion. Bulk and in-situ chemical compositions together with in-situ Pb isotope composition of dolerite, oxide gabbro, gabbro, olivine gabbro, dunite, and peridotite are presented. Compositional ranges and trends of the igneous and peridotitic rocks from the Mado Megamullion are similar to those from the slow- to ultraslow-spreading mid-ocean ridges (MOR). Since the timing of the Mado Megamullion exhumation corresponds to the very end …

Verification Of A Mobile Psychoacoustic Test System, Jordana C. Soares, Sangamanatha Veeranna, Vijay Parsa, Chris Allan, Winnie Ly, Minh Duong, Paula Folkeard, Sheila Moodie, Prudence Allen

Faculty Publications

Many hearing difficulties can be explained as a loss of audibility, a problem easily detected and treated using standard audiological procedures. Yet, hearing can be much poorer (or more impaired) than audibility predicts because of deficits in the suprathreshold mechanisms that encode the rapidly changing, spectral, temporal, and binaural aspects of the sound. The ability to evaluate these mechanisms requires well-defined stimuli and strict adherence to rigorous psychometric principles. This project reports on the comparison between a laboratory-based and a mobile system’s results for psychoacoustic assessment in adult listeners with normal hearing. A description of both systems employed is provided. …

A Molecular Design Approach Towards Elastic And Multifunctional Polymer Electronics, Yu Zheng, Zhiao Yu, Song Zhang, Xian Kong, Wesley Michaels, Weichen Wang, Gan Chen, Deyu Liu, Jian Cheng Lai, Nathaniel Prine, Weimin Zhang, Shayla Nikzad, Christopher B. Cooper, Donglai Zhong, Jaewan Mun, Zhitao Zhang, Jiheong Kang, Jeffrey B.H. Tok, Iain Mcculloch, Jian Qin, Xiaodan Gu, Zhenan Bao

Faculty Publications

Next-generation wearable electronics require enhanced mechanical robustness and device complexity. Besides previously reported softness and stretchability, desired merits for practical use include elasticity, solvent resistance, facile patternability and high charge carrier mobility. Here, we show a molecular design concept that simultaneously achieves all these targeted properties in both polymeric semiconductors and dielectrics, without compromising electrical performance. This is enabled by covalently-embedded in-situ rubber matrix (iRUM) formation through good mixing of iRUM precursors with polymer electronic materials, and finely-controlled composite film morphology built on azide crosslinking chemistry which leverages different reactivities with C–H and C=C bonds. The high covalent crosslinking density …

Approaching Disorder-Tolerant Semiconducting Polymers, Xinwen Yan, Miao Xiong, Xin Yu Deng, Kai Kai Liu, Jia Tong Li, Xue Qing Wang, Song Zhang, Nathaniel Prine, Zhuoqiong Zhang, Wanying Huang, Yishan Wang, Jie Yu Wang, Xiaodan Gu, Shu Kong So, Jia Zhu, Ting Lei

Faculty Publications

Doping has been widely used to control the charge carrier concentration in organic semiconductors. However, in conjugated polymers, n-doping is often limited by the tradeoff between doping efficiency and charge carrier mobilities, since dopants often randomly distribute within polymers, leading to significant structural and energetic disorder. Here, we screen a large number of polymer building block combinations and explore the possibility of designing n-type conjugated polymers with good tolerance to dopant-induced disorder. We show that a carefully designed conjugated polymer with a single dominant planar backbone conformation, high torsional barrier at each dihedral angle, and zigzag backbone curvature is highly …

Ultra-Conformal Skin Electrodes With Synergistically Enhanced Conductivity For Long-Time And Low-Motion Artifact Epidermal Electrophysiology, Yan Zhao, Song Zhang, Tianhao Yu, Yan Zhang, Guo Ye, Han Cui, Chengzhi He, Wenchao Jiang, Yu Zhai, Chunming Lu, Xiaodan Gu, Nan Liu

Faculty Publications

Accurate and imperceptible monitoring of electrophysiological signals is of primary importance for wearable healthcare. Stiff and bulky pregelled electrodes are now commonly used in clinical diagnosis, causing severe discomfort to users for long-time using as well as artifact signals in motion. Here, we report a ~100 nm ultra-thin dry epidermal electrode that is able to conformably adhere to skin and accurately measure electrophysiological signals. It showed low sheet resistance (~24 Ω/sq, 4142 S/cm), high transparency, and mechano-electrical stability. The enhanced optoelectronic performance was due to the synergistic effect between graphene and poly (3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), which induced a high …

Metacognition, Social Cognition, And Mentalizing In Psychosis: Are These Distinct Constructs When It Comes To Subjective Experience Or Are We Just Splitting Hairs?, P. H. Lysaker, S. Cheli, G. Dimaggio, B. Buck, K. A. Bonfils, K. Huling, C. Wiesepape, J. T. Lysaker

Faculty Publications

Research using the integrated model of metacognition has suggested that the construct of metacognition could quantify the spectrum of activities that, if impaired, might cause many of the subjective disturbances found in psychosis. Research on social cognition and mentalizing in psychosis, however, has also pointed to underlying deficits in how persons make sense of their experience of themselves and others. To explore the question of whether metacognitive research in psychosis offers unique insight in the midst of these other two emerging fields, we have offered a review of the constructs and research from each field. Following that summary, we discuss …

Label-Free Characterization Of Organic Nanocarriers Reveals Persistent Single Molecule Cores For Hydrocarbon Sequestration, Terry Mcafee, Thomas Ferron, Isvar A. Cordova, Phillip D. Pickett, Charles L. Mccormick, Cheng Wang, Brian A. Collins

Faculty Publications

Self-assembled molecular nanostructures embody an enormous potential for new technologies, therapeutics, and understanding of molecular biofunctions. Their structure and function are dependent on local environments, necessitating in-situ/operando investigations for the biggest leaps in discovery and design. However, the most advanced of such investigations involve laborious labeling methods that can disrupt behavior or are not fast enough to capture stimuli-responsive phenomena. We utilize X-rays resonant with molecular bonds to demonstrate an in-situ nanoprobe that eliminates the need for labels and enables data collection times within seconds. Our analytical spectral model quantifies the structure, molecular composition, and dynamics of a copolymer micelle …

Nutrient Content And Stoichiometry Of Pelagic Sargassum Reflects Increasing Nitrogen Availability In The Atlantic Basin, B. E. Lapointe, R. A. Brewton, L. W. Herren, M. Wang, C. Hu, D. J. Mcgillicuddy, S. Lindell, F. J. Hernandez, P. L. Morton

Faculty Publications

The pelagic brown macroalgae Sargassum spp. have grown for centuries in oligotrophic waters of the North Atlantic Ocean supported by natural nutrient sources, such as excretions from associated fishes and invertebrates, upwelling, and N₂ fixation. Using a unique historical baseline, we show that since the 1980s the tissue %N of Sargassum spp. has increased by 35%, while %P has decreased by 44%, resulting in a 111% increase in the N:P ratio (13:1 to 28:1) and increased P limitation. The highest %N and δ¹⁵N values occurred in coastal waters influenced by N-rich terrestrial runoff, while lower C:N and …

Accurate Diagnosis Of Colorectal Cancer Based On Histopathology Images Using Artificial Intelligence, K. S. Wang, G. Yu, C. Xu, X. H. Meng, J. Zhou, C. Zheng, Z. Deng, L. Shang, R. Liu, S. Su, X. Zhou, Q. Li, J. Li, J. Wang, K. Ma, J. Qi, Z. Hu, P. Tang, J. Deng, X. Qiu, B. Y. Li, W. D. Shen, R. P. Quan, J. T. Yang, L. Y. Huang, Y. Xiao, Z. C. Yang, Z. Li, S. C. Wang, H. Ren, C. Liang, W. Guo, Y. Li, H. Xiao, Y. Gu, J.P. Yun, D. Huang, Z. Song, X. Fan, L. Chen, X. Yan, Z. Li, Z.C. Huang, J. Huang, J. Luttrell, Chaoyang Zhang, W. Zhou, K. Zhang, C. Yi, C. Wu, H. Shen, Y.P. Wang, H.M. Xiao, H.W. Deng

Faculty Publications

Background: Accurate and robust pathological image analysis for colorectal cancer (CRC) diagnosis is time-consuming and knowledge-intensive, but is essential for CRC patients’ treatment. The current heavy workload of pathologists in clinics/hospitals may easily lead to unconscious misdiagnosis of CRC based on daily image analyses.

Methods: Based on a state-of-the-art transfer-learned deep convolutional neural network in artificial intelligence (AI), we proposed a novel patch aggregation strategy for clinic CRC diagnosis using weakly labeled pathological whole-slide image (WSI) patches. This approach was trained and validated using an unprecedented and enormously large number of 170,099 patches, > 14,680 WSIs, from > 9631 subjects …

The Coupling And Competition Of Crystallization And Phase Separation, Correlating Thermodynamics And Kinetics In Opv Morphology And Performances, Zaiyu Wang, Ke Gao, Yuanyuan Kan, Ming Zhang, Chaoqun Qiu, Lei Zhu, Zhe Zhao, Xiaobin Peng, Wei Feng, Zhiyuan Qian, Xiaodan Gu, Alex K.Y. Jen, Ben Zhong Tang, Yong Cao, Yongming Zhang, Feng Liu

Faculty Publications

The active layer morphology transition of organic photovoltaics under non-equilibrium conditions are of vital importance in determining the device power conversion efficiency and stability; however, a general and unified picture on this issue has not been well addressed. Using combined in situ and ex situ morphology characterizations, morphological parameters relating to kinetics and thermodynamics of morphology evolution are extracted and studied in model systems under thermal annealing. The coupling and competition of crystallization and demixing are found to be critical in morphology evolution, phase purification and interfacial orientation. A unified model summarizing different phase diagrams and all possible kinetic routes …

On The Role Of Matrix-Weights Elements In Consensus Algorithms For Multi-Agent Systems, Joshua Ogbebor, Xiangyu Meng

Faculty Publications

This paper examines the roles of the matrix weight elements in matrix-weighted consensus. The consensus algorithms dictate that all agents reach consensus when the weighted graph is connected. However, it is not always the case for matrix weighted graphs. The conditions leading to different types of consensus have been extensively analysed based on the properties of matrix-weighted Laplacians and graph theoretic methods. However, in practice, there is concern on how to pick matrix-weights to achieve some desired consensus, or how the change of elements in matrix weights affects the consensus algorithm. By selecting the elements in the matrix weights, different …

Spatially Periodic Vapor Bubble Activity During Subcooled Pool Boiling On 1d Aluminum Alloy Micro-Fin Arrays, Brendon Doran, Bin Zhang, Shayan Davani, Kojo Asiamah Osafo, Owen Sutka, Abigail Walker, Nicholas Mueller, Stephen Akwaboa, Patrick Mensah, W. J. Meng, Arden L. Moore

Faculty Publications

Within the broad field of micro- and nano- scale surface modification to improve pool boiling performance, micro-fin arrays are especially attractive due to their ability to significantly increase wetted surface area with minimal increase in size or weight compared to macroscopic fins. In addition, their regular and repeating geometry enables greater potential for parametric optimization, uniformity, and repeatability as compared to more randomized alternatives. However, the presence of a regular, repeating microscale pattern on a heated surface has previously been shown to create alternating regions of liquid and vapor flow at small length scales which can strongly affect the macroscopic …

Experimental Investigation Of The Aerodynamics Of A Large Industrial Building With Parapet, Aly Mousaad Aly, Matthew Thomas, Hamzeh Gol-Zaroudi

Faculty Publications

The aerodynamic performance of a roof depends significantly on its shape and size, among other factors. For instance, large roofs of industrial low-rise buildings may behave differently compared to those of residential homes. The main objective of this study is to experimentally investigate how perimeter solid parapets can alter the flow pattern around a low-rise building with a large aspect ratio of width/height of about 7.6, the case of industrial buildings/shopping centers. Solid parapets of varied sizes are added to the roof and tested in an open-jet simulator in a comparative study to understand their impact on roof pressure coefficients. …

Well-Scale Demonstration Of Distributed Pressure Sensing Using Fiber-Optic Das And Dts, Gerald K. Ekechukwu, Jyotsna Sharma

Faculty Publications

In this study, we used data from optical fiber-based Distributed Acoustic Sensor (DAS) and Distributed Temperature Sensor (DTS) to estimate pressure along the fiber. A machine learning workflow was developed and demonstrated using experimental datasets from gas–water flow tests conducted in a 5163-ft deep well instrumented with DAS, DTS, and four downhole pressure gauges. The workflow is successfully demonstrated on two experimental datasets, corresponding to different gas injection volumes, backpressure, injection methods, and water circulation rates. The workflow utilizes the random forest algorithm and involves a two-step process for distributed pressure prediction. In the first step, single-depth predictive modeling is …

Comparison Of Seasonal Foes And Fbes Occurrence Rates Derived From Global Digisonde Measurements, Dawn K. Merriman, Omar A. Nava, Eugene V. Dao, Daniel J. Emmons Ii

Faculty Publications

A global climatology of sporadic-E occurrence rates (ORs) based on ionosonde measurements is presented for the peak blanketing frequency, fbEs, and the ordinary mode peak frequency of the layer, foEs. ORs are calculated for a variety of sporadic-E frequency thresholds: no lower limit, 3, 5, and 7 MHz. Seasonal rates are calculated from 64 Digisonde sites during the period 2006–2020 using ionograms either manually or automatically scaled with ARTIST-5. Both foEs and fbEs ORs peak in the Northern Hemisphere during the boreal summer, with a decrease by roughly a factor of 2–3 in fbEs rates relative to foEs rates without …

The Church Bridge Project Focus Group Results: African American Perspectives Of Weight Management Programs To Improve Nutrition And Physical Activity Behaviors, Jennifer L. Lemacks, Laurie S. Abbott, Tammy Greer, Renee Gunn, Ashley Bryant, La Shaundrea Bradford, Penny A. Ralston

Faculty Publications

Background: The prevalence of obesity is disproportionately high among African Americans in the Southern US. More information is needed about factors that influence participation in nutrition and physical activity programs to promote healthy weight.

Objective: The purpose of this study is to explore the weight management perceptions of young to middle aged adult African Americans.

Methods: The Church Bridge Project intervention participants were recruited for two focus groups. Qualitative data were recorded, transcribed and a thematic content analysis was conducted to identify major themes.

Results: Barriers included technology learning curve/burden and competing priorities. Facilitators included support, …

Order And Harmony: Kepler’S Guiding Forces, Dan Broadbent

Faculty Publications

Adapted from the article “Order and Harmony: Kepler’s Guiding Forces” included in “Towards Mysteries of the Cosmos with Johannes Kepler – on the 450th Anniversary of His Birth,” a commemorative volume published by the Obserwatorium Atronommiczne Krolowej Jadwigi Rzepienniku Biskupim (Queen Jadwiga Observatory of Rzepiennik Biskupi Poland) December 2021. Adapted with permission.

As the subject librarian for physics and astronomy at Brigham Young University, the author has had the privilege of handling some of Johannes Kepler’s original books preserved in the university’s archives. One of the most impressive materials in the archive is a large page from Mysterium Cosmographicum that …