Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Physical Sciences and Mathematics (293362)
- Education (91616)
- Engineering (79935)
- Computer Sciences (63326)
- Social and Behavioral Sciences (60952)
-
- Earth Sciences (59432)
- Environmental Sciences (52537)
- Life Sciences (52464)
- Arts and Humanities (37399)
- Physics (34115)
- Chemistry (33243)
- Geology (29966)
- Mathematics (27186)
- Law (25245)
- Higher Education (25211)
- Medicine and Health Sciences (23186)
- Science and Mathematics Education (19294)
- Business (18105)
- Electrical and Computer Engineering (18057)
- Computer Engineering (17464)
- History (15377)
- Plant Sciences (14955)
- Soil Science (14400)
- Oceanography and Atmospheric Sciences and Meteorology (14028)
- Mechanical Engineering (13098)
- Statistics and Probability (12849)
- Artificial Intelligence and Robotics (11356)
- Agronomy and Crop Sciences (11025)
- Curriculum and Instruction (10717)
- Civil and Environmental Engineering (10519)
- Institution
-
- University of Nebraska - Lincoln (32987)
- Western Michigan University (24912)
- University of Kentucky (17270)
- Missouri University of Science and Technology (13204)
- Utah State University (13046)
-
- TÜBİTAK (12072)
- University of South Florida (10792)
- University of New Mexico (10590)
- Singapore Management University (10460)
- Old Dominion University (10137)
- Louisiana State University (9857)
- California Polytechnic State University, San Luis Obispo (9531)
- University of Montana (9095)
- University of Northern Iowa (9064)
- University of Mississippi (8902)
- Purdue University (8613)
- Brigham Young University (8047)
- University of Central Florida (7693)
- Wright State University (7018)
- San Jose State University (6910)
- Portland State University (6889)
- City University of New York (CUNY) (6776)
- University of New Hampshire (6098)
- New Jersey Institute of Technology (6003)
- University of Nevada, Las Vegas (5882)
- Nova Southeastern University (5780)
- Georgia Southern University (5676)
- Clemson University (5675)
- Air Force Institute of Technology (5596)
- University of Texas Rio Grande Valley (5231)
- Keyword
-
- Newspaper (7372)
- Education (6707)
- Mathematics (5281)
- Student newspaper (3689)
- Machine learning (3278)
-
- Faculty (3185)
- Higher education (3024)
- Undergraduate (2742)
- Students (2703)
- Bowling Green State University (2659)
- History (2232)
- Spartan Daily (2144)
- Newsletter (2094)
- Engineering (2079)
- Western Australia (2053)
- EIU (2020)
- Climate change (2010)
- Physics (1948)
- Eastern Illinois University (1913)
- Student life (1907)
- Pennsylvania (1896)
- Student newspapers (1878)
- Periodicals (1841)
- Collegeville (1809)
- Artificial intelligence (1808)
- Curriculum (1795)
- Daily Eastern News (1780)
- Alumni (1779)
- College student newspapers and periodicals (1767)
- Humans (1767)
- Publication Year
-
- 2026 (16811)
- 2025 (25430)
- 2024 (27028)
- 2023 (27075)
- 2022 (31257)
-
- 2021 (42330)
- 2020 (28760)
- 2019 (26842)
- 2018 (25623)
- 2017 (24622)
- 2016 (24338)
- 2015 (22196)
- 2014 (21749)
- 2013 (20017)
- 2012 (19309)
- 2011 (17236)
- 2010 (15968)
- 2009 (14000)
- 2008 (13177)
- 2007 (12475)
- 2006 (11371)
- 2005 (10381)
- 2004 (9453)
- 2003 (8169)
- 2002 (7459)
- 2001 (6946)
- 2000 (6607)
- 1999 (6115)
- 1998 (6040)
- 1997 (5733)
- Publication
-
- Theses and Dissertations (22357)
- Legacy Scout Tickets from Pure Oil Company (11044)
- Electronic Theses and Dissertations (9774)
- IGC Proceedings (1977-2023) (9261)
- Faculty Publications (9034)
-
- Research Collection School Of Computing and Information Systems (8553)
- Dissertations (6769)
- Thin Sections (6677)
- Theses (6597)
- Masters Theses (4902)
- Journal of System Simulation (3880)
- Graduate Theses and Dissertations (3736)
- USF Tampa Graduate Theses and Dissertations (3574)
- Nebraska Tractor Tests (3402)
- Walden Dissertations and Doctoral Studies (3383)
- Master's Theses (3188)
- Turkish Journal of Electrical Engineering and Computer Sciences (3152)
- Doctoral Dissertations (2977)
- Articles (2927)
- Graduate Theses, Dissertations, and Problem Reports (ETD) (2867)
- Chulalongkorn University Theses and Dissertations (Chula ETD) (2807)
- Turkish Journal of Chemistry (2806)
- Turkish Journal of Mathematics (2781)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (2669)
- Neutrosophic Sets and Systems (2551)
- Commencement Programs (2403)
- Publications and Research (2397)
- Journal of Electrochemistry (2393)
- Publications (2389)
- Applied Mathematics & Information Sciences (2320)
- Publication Type
Articles 8941 - 8970 of 713656
Full-Text Articles in Entire DC Network
Quantum Simulation And Nanoscale Sensing Of Many-Body Phenomena With Solid-State Spin Defects, Guanghui He
Quantum Simulation And Nanoscale Sensing Of Many-Body Phenomena With Solid-State Spin Defects, Guanghui He
Arts & Sciences Graduate Student Theses and Dissertations
Emergent phenomena in interacting quantum systems arise from collective behavior that cannot be reduced to single-particle physics. Understanding these phenomena requires platforms capable of both synthesizing many-body states under controlled conditions and probing them at the microscopic scale where correlations originate. Solid-state spin defects, including nitrogen-vacancy (NV) centers in diamond and negatively charged boron vacancy centers in hexagonal boron nitride (hBN), offer precisely this dual capability. In the first part of this dissertation, a strongly interacting NV ensemble is subjected to periodic and quasi-periodic drives to access a long-lived prethermal regime and realize a discrete time quasicrystal (DTQC). In the …
Evaluating Measurement Invariance Frameworks: A Comparison Of Mg-Cfa, Alignment Optimization, & Bayesian Approximate Measurement Invariance Using The Brigham Young University Counseling And Psychological Services Client Satisfaction Survey, Heidi Lula Lindsey
Theses and Dissertations
Researchers must establish measurement invariance (MI) before comparing latent constructs across groups to ensure construct validity. However, traditional multi-group confirmatory factor analysis (MG-CFA) may impose overly strict equality constraints in applied settings. Alternative MI frameworks are less familiar to researchers, which limits their use. This study compares MG-CFA, alignment optimization (AO), and Bayesian approximate measurement invariance (BAMI) using archival data from the Brigham Young University Counseling and Psychological Services Client Satisfaction Survey (N = 1,278). Participants completed an exit survey after receiving individual (n = 1,063), couple (n = 83), or group (n = 132) therapy, answering 16 five-point Likert …
A Computer Vision Approach To Analyzing Taxane Effects On Prostate Cancer Cells, Diana Elizabeth Dancea
A Computer Vision Approach To Analyzing Taxane Effects On Prostate Cancer Cells, Diana Elizabeth Dancea
Electronic Theses and Dissertations 2020 - Present
Actin is a family of proteins that help create the structure of the cytoskeleton, which gives shape to the cell. In many chemotherapy treatments, researchers target actin because it controls the cell division process. Therefore, if they are able to understand the actin fibers, that may help in formulating methods to stop or slow down cancer cells from reproducing. Another important protein is PAK6, which regulates actin. In our research, a collaborative effort with Prof. Michael Lu’s lab at Florida Atlantic University, we use machine learning techniques to analyze cells which had their PAK6 protein knocked out, and compare them …
Development Of Tpack-Based Learning Book To Improve Learning Outcomes Of Third Grade Students Of State Elementary School 16 Banda Aceh, Nurul Zikri Filina, Siti Mayang Sari, Zahraini Zahraini, Jiyeon Na
Development Of Tpack-Based Learning Book To Improve Learning Outcomes Of Third Grade Students Of State Elementary School 16 Banda Aceh, Nurul Zikri Filina, Siti Mayang Sari, Zahraini Zahraini, Jiyeon Na
Jurnal Pendidikan Humaniora
This research aims to develop a TPACK-based Basic Science learning book as an effort to improve the learning outcomes of class III students at State Elementary School 16 Banda Aceh. This research is a type of research and development (R&D), using the ADDIE method (Analysis, Design, Development, Implementation, Evaluation). The research results prove that the TPACK-based Basic Science learning book is suitable for use with media expert validation results in the very good category (93%), material expert validation in the very good category (94%), language experts showing the very good category (90%). The TPACK-based Basic Science Book can improve the …
Enhancing Learning Outcomes Through The Utilization Of Digital Comics, Sri Mastiah, Rita Novita, Muli Putra, Syarfuni Syarfuni, Jonni Sitorus, Xiu Wen Tay
Enhancing Learning Outcomes Through The Utilization Of Digital Comics, Sri Mastiah, Rita Novita, Muli Putra, Syarfuni Syarfuni, Jonni Sitorus, Xiu Wen Tay
Jurnal Pendidikan Humaniora
Student completeness in learning mathematics is still low and interest in learning is relatively low, because the learning media is less varied and less interesting, and there are still students who have not achieved learning outcomes above the minimum completeness criteria. The purpose of this study was to analyze the use of digital comics in improving mathematics learning outcomes. The research approach used is qualitative and the type of research used is a literature study or literature review. The stages used in this literature study research design include the focus of scientific articles, data collection, data analysis, and conclusions. Based …
Using Tablet Pcs In Teaching, Sarita Veeraragavoodoo
Using Tablet Pcs In Teaching, Sarita Veeraragavoodoo
Jurnal Pendidikan Humaniora
This research purposes is prove the impact of adopting tablet PCs on enhancement of teaching in secondary schools of Mauritius. The research was conducted by mixed method which comprised of quantitative and qualitative approaches. Results from the studies and researches have shown more positive impacts than negative ones which affect teaching in secondary schools of Mauritius. The best means is to resort to applying Tablet PCs within education to promote teaching for efficiency and effectiveness.
Improving Students Reading Comprehension Ability Through Integrated Thematic Learning With School Literacy Movement Support, Ryan Dwi Puspita, Dadang Sunendar, Bachrudin Musthafa, Rully Agung
Improving Students Reading Comprehension Ability Through Integrated Thematic Learning With School Literacy Movement Support, Ryan Dwi Puspita, Dadang Sunendar, Bachrudin Musthafa, Rully Agung
Jurnal Pendidikan Humaniora
PISA's findings reported that Indonesian elementary school students (IESS) achieved their average reading comprehension ability which were below the standard set by OECD. This research proposed school literacy movement (SLM) as an apparatus to cultivate IESS reading and writing skill habit. This study applied quasi-experimental method with employed sample of 126 IESS of 5th and 4th graders and their teachers serving in four schools. This study showed that there was significant effect of ITL to improve IESS reading comprehension ability of 5th graders.
Comprehensive Genome Annotation Of Bacteriophage Phrampa: Insights Into Gene Organization And Function, Kimi Norway, Brian Burnes
Comprehensive Genome Annotation Of Bacteriophage Phrampa: Insights Into Gene Organization And Function, Kimi Norway, Brian Burnes
Undergraduate Research Conference
Bacteriophage genome annotation is essential for understanding phage diversity, gene function, and evolutionary relationships. In this project, the complete genome of the newly isolated bacteriophage Phrampa was annotated as part of the BSB 303 course. Annotation was conducted using the Phage Evidence Collection and Annotation Network (PECAAN), which integrates multiple lines of bioinformatic evidence to identify genes and predict putative functions. All annotations will undergo external review through the SEA-PHAGES program to ensure accuracy and standardization. The finalized dataset will contribute a fully annotated Phrampa genome to public scientific resources, supporting broader efforts in comparative genomics, phage evolution research, and …
Potential Applications Of Thymus Vulgaris In Dental Care: A Review Of Antimicrobial And Oral Health Benefits, Lakenzia Z. Ham
Potential Applications Of Thymus Vulgaris In Dental Care: A Review Of Antimicrobial And Oral Health Benefits, Lakenzia Z. Ham
Undergraduate Research Conference
This research proposal focuses on how common thyme (Thymus vulgaris) can be used in dental care. There has been more interest in natural products for dental health because some common dental treatments can have side effects or lead to antibiotic resistance. Thyme contains natural compounds like thymol and carvacrol that help kill bacteria, reduce inflammation, and prevent buildup on teeth.
The purpose of this study is to investigate the current scientific literature to see the effectiveness of thyme in preventing common oral health problems like cavities, gum disease, and bad breath. Research shows that thyme can fight bacteria …
From Garden To Laboratory: The Scientific Significance Of Zinnia Elegans, Katelyn G. Klark
From Garden To Laboratory: The Scientific Significance Of Zinnia Elegans, Katelyn G. Klark
Undergraduate Research Conference
Zinnia elegans is a flowering species in the Asteraceae family that originated in Mexico and eventually spread to Europe (Burlec et al., 2019). This species' vast array of colors, drought resistance, and other agricultural benefits make this plant highly sought after in gardens worldwide (Burlec et al., 2019). However, following the methodology of a preliminary research literature review, recent scientific research suggests that Z. elegans may possess significance beyond its aesthetic appeal. This literature review aimed to examine recent scientific findings regarding zinnias and their potential agricultural, medicinal, and genetic applications. To explore these possibilities, recent scientific studies were examined …
Galen Of Pergamum: Life, Literature, And Legacy, Elyse Rogers
Galen Of Pergamum: Life, Literature, And Legacy, Elyse Rogers
Ex Sapientia Loqui
Galen of Pergamum was a second-century physician whose work had an enduring impact on the field of medicine. His extensive writings were the primary reference and teaching materials for the medical community for over a millennium. While his ideas were revolutionary for his time, they were eventually outdated. Nevertheless, there was a continued reliance on his authority, which hindered scientific advancement. Galen both advanced the world of medicine with his emphasis on observational analysis and constrained its progress through the profound dominance of his theories.
This paper aims to understand the life of Galen and the significance of his work …
Front Matter, Julie Harris
Full Issue, Clara Kernodle
State Tax Discrimination And Internal Consistency, Michael T. Fatale
State Tax Discrimination And Internal Consistency, Michael T. Fatale
Florida Tax Review
The contours of the U.S. Supreme Court’s dormant Commerce Clause doctrine of internal consistency, which asks whether a state tax intrinsically overreaches in imposing a burden upon interstate commerce, are difficult to understand. This is despite the fact that a determination that a state tax violates internal consistency can have significant state fiscal consequences. This uncertainty was suggested again by the recent case, Zilka v. Tax Review Board City of Philadelphia, for which the Supreme Court later denied certiorari. See 304 A.3d 1153 (Pa. 2023), cert. denied, 145 S. Ct. 1045 (2025).
The parameters of the internal consistency …
Normal Matrices, Fuzhen Zhang
Normal Matrices, Fuzhen Zhang
Mathematics Colloquium Series
Normal matrices form a central class in matrix analysis, including Hermitian, skew-Hermitian, and unitary, positive semidefinite, permutation matrices and so on. This presentation surveys fundamental properties of normal matrices, including spectral characterization, unitary diagonalization, and trace (in)equality through majorization. It highlights equivalent conditions for normality, with discussions extending to matrix exponentials and polynomials. Examples and counterexamples are provided to clarify certain subtle points about matrix normality. The talk is based on a recent paper published in JMC (joint work with Y.-J. Hu)
Topological Phase Matrix Computing With Hyper-Spatial Extensions: Integer 12-Vector Lattice With Dynamic Small-World Connectivity (Moution Extension), Olexandr Lozovyi
Topological Phase Matrix Computing With Hyper-Spatial Extensions: Integer 12-Vector Lattice With Dynamic Small-World Connectivity (Moution Extension), Olexandr Lozovyi
Defensive Publications Series
We present a deterministic spatial computing architecture extending integer-based phase lattices (VOC AI / MOUTION frameworks) with dynamically evolving non-local connections. The system operates on a 12-vector isotropic neighborhood approximating a face-centered cubic (FCC) topology in 2D projection. By introducing bounded virtual links, the lattice forms an emergent small-world network enabling rapid global information propagation (insight generation) while preserving strictly O(1) per-node complexity. The model is fully integer-based, requires no floating-point arithmetic, and deterministically converges to metastable attractors. This work establishes prior art for bounded-degree hyper-spatial phase computation, dynamic plasticity, and M-layered multiplexed topologies.
Are Certain Mobile Phones Overpriced?, Camron Pickard, Jennifer Schon
Are Certain Mobile Phones Overpriced?, Camron Pickard, Jennifer Schon
Celebration of Research
In this project, I investigated the possibility of projecting phone prices based on people’s opinions of their performance. I predicted that the more expensive phones would have higher rating predictions but have lower predicted prices.
Loan Risk Classification Model, Giulio Palombo
Loan Risk Classification Model, Giulio Palombo
Celebration of Research
I created a model that classifies the customers as good or bad for possible loaners. The model is XGBoost Classification model. I used as target variable the variable “default”. The target variable indicates whether the customer has previously defaulted on a loan or not. The dataset provides a representation of customer behavior and financial status. On top of that, the dataset contains detailed information about banking transactions.
Emergent Dynamics In Multiplex Social Networks: Agent-Based Modeling Of Information Diffusion For Misinformation Control, Harshvardhan Prabhakar Ghongade, Anjali Ashokrao Bhadre, Shivani Agarwal, Harjitkumar Uttamrao Pawar, Harshal Subhash Rane
Emergent Dynamics In Multiplex Social Networks: Agent-Based Modeling Of Information Diffusion For Misinformation Control, Harshvardhan Prabhakar Ghongade, Anjali Ashokrao Bhadre, Shivani Agarwal, Harjitkumar Uttamrao Pawar, Harshal Subhash Rane
Northeast Journal of Complex Systems (NEJCS)
Information misrepresentation is widespread in multi-layered social networks which provide multiple avenues to communicate information. As such, it presents significant opportunities for both information integrity and public discourse to be undermined by disinformation. This paper outlines a new agent-based model, developed to capture emergent dynamics of multi-layered social networks and to help identify technical means to mitigate information misrepresentation in complex systems. A key component of this research includes a novel Multi-Layer Information Diffusion Model (MLIDM), integrating both cross-layer communication among agents, as well as heterogeneous agent behaviors and adaptive intervention strategies. Our methods employ a three-stage process to model …
Teaching With S2scc-Ai: A Practical Framework For Sport Management Classrooms, Kimberly D. Bynum, Wendy T. Gillis
Teaching With S2scc-Ai: A Practical Framework For Sport Management Classrooms, Kimberly D. Bynum, Wendy T. Gillis
The COSMA Journal
ABSTRACT
Generative artificial intelligence (AI) technologies, including tools such as ChatGPT, Claude, and Perplexity, are radically changing how higher ed students approach their college learning experience. These shifts are especially impactful in undergraduate sport management programs, where employers expect graduates to demonstrate teamwork, critical thinking and digital literacy skills. As AI becomes embedded across sport industry functions such as event operations, marketing, analytics, and fan engagement, higher ed pedagogy must evolve to reflect the professional contexts students are preparing to enter. In this paper, Student-to-Student Co-Creation enhanced by AI (S2SCC-AI) is advanced as a practical, COSMA-aligned pedagogical framework for leveraging …
Optimization Of Gas Metal Arc Welding Parameters For Maximizing Tensile Strength And Hardness Of Aisi304 Steel Joints Using Response Surface Methodology (Rsm), Saadat Ali Rizvi, Wajahat Ali, Ali Hussain
Optimization Of Gas Metal Arc Welding Parameters For Maximizing Tensile Strength And Hardness Of Aisi304 Steel Joints Using Response Surface Methodology (Rsm), Saadat Ali Rizvi, Wajahat Ali, Ali Hussain
Yanbu Journal of Engineering and Science
This research article is focused on Gas Metal Arc (GMA) Welding which is also known as Metal Inert Gas (MIG) welding of AISI304 of 5mm thickness. In this research article basic aim is to discover how welding parameters like arc voltage, gas flow rate, and welding speed affect the mechanical quality of weldment i.e. tensile strength and hardness. The highest tensile strength recorded is 470 N/mm2 at 20V and hardness is 196 at 24V. The strength and quality of the welds can be greatly increased by choosing the right welding parameters. In this study, Response Surface Methodology (RSM) was used …
Framework For Multi-Ai Orchestration Via Task Arbitrage And Byzantine Consensus, Tanmay Kayande
Framework For Multi-Ai Orchestration Via Task Arbitrage And Byzantine Consensus, Tanmay Kayande
Defensive Publications Series
This defensive publication describes a framework for multi-artificial intelligence (AI) orchestration that can be used to address potential limitations associated with reliance on single AI models, such as correlated systemic failures or cognitive blind spots. The described system is a cognitive orchestration framework that can function as a middleware layer to manage tasks across a heterogeneous ensemble of AI models. An orchestrator node can decompose a user request into a sequence of sub-tasks, which an arbitrage engine may then dynamically assign to suitable AI models based on certain factors, such as capability, cost, and latency. For certain tasks, such as …
Asymptotic Sensitivity And Adjoint Methods For Equation Discovery With Open-Source Implementation, Nathan Schill
Asymptotic Sensitivity And Adjoint Methods For Equation Discovery With Open-Source Implementation, Nathan Schill
Theses and Dissertations
The "on-the-fly" (OTF) method is a gradient-based approach to equation discovery. It makes use of (potentially limited) observational data, a data assimilation technique such as continuous data assimilation (also called nudging), and an error metric. From these it computes an asymptotic approximation of a simulated system's error sensitivity with respect to unknown parameters and utilizes any gradient-based optimization algorithm to perform parameter updates. These parameter updates may be done online or offline, and the model may be of a precisely specified form or simply a library of possible terms with potentially nonlinear parameters. We have applied the adjoint method to …
Code-Switching Practices In The Nile Delta: A Comparative Study Of Linguistic Fluidity Among Gen Z And Gen X Efl Learners, Wesam Khairy Morsi
Code-Switching Practices In The Nile Delta: A Comparative Study Of Linguistic Fluidity Among Gen Z And Gen X Efl Learners, Wesam Khairy Morsi
English Language and Literature
This study investigates code-switching as a form of linguistic fluidity among Egyptian EFL learners, focusing on how language practices are shaped by proficiency level, socio-cultural background, and generational positioning. Drawing on a convergent mixed-methods design, the research combines survey data from 154 participants with semi-structured interviews conducted with speakers from Generation Z and Generation X. Rather than treating code-switching as a random or deficient practice, the study situates it within established sociolinguistic theories that view language choice as socially meaningful, ideologically loaded, and deeply connected to identity construction. The findings reveal that advanced learners, particularly younger urban speakers, tend to …
The Beacon, April 16, 2026, Beacon Staff
The Beacon, April 16, 2026, Beacon Staff
The Beacon, 2025-2026
Club spotlight: Dance Marathon nonprofit; Unique characteristics of Dutch towns; Northwestern’s Literary Arts Magazine; Mario 2: disappointing and boring; Forrest Frank & Noah Hayden’s collab album; 1776: A blast from America’s colonial past; Praise to the King through the arts at NW; Chapel series: the dorms lead service; Is NW still a liberal arts college?; Why asparagus is a finger food; N-Dubs Awards Show set to return; Softball soars against GPAC opponents; Tennis competes against GPAC rivals; Trump announces ceasefire; UN urges Epstein files related investigation
April 2026 Academic Affairs Minutes, University Of Nebraska At Kearney Academic Affairs Committee
April 2026 Academic Affairs Minutes, University Of Nebraska At Kearney Academic Affairs Committee
Academic Affairs Committee Minutes
No abstract provided.
Recent Wetland Elevation Dynamics In Coastal Louisiana, Usa, Elizabeth Harris
Recent Wetland Elevation Dynamics In Coastal Louisiana, Usa, Elizabeth Harris
LSU Master's Theses
Coastal marshes globally are increasingly vulnerable to accelerating relative sea-level rise (RSLR), which threatens their capacity to maintain elevation through feedbacks among sediment supply, vegetation productivity, hydrology, and soil processes. Although many marshes can persist under moderate rates of sea-level rise through vertical accretion and belowground biomass production, this resilience is strongly constrained by sediment availability and subsurface processes such as autocompaction and organic matter decomposition. High accretion is often assumed to confer marsh resilience; however, subsurface processes, particularly autocompaction driven by surface loading, can substantially offset elevation gains. Coastal Louisiana experiences among the highest rates of RSLR worldwide due …
Sonic Booms From Rockets: Measurements And Modeling, Mark Charles Anderson
Sonic Booms From Rockets: Measurements And Modeling, Mark Charles Anderson
Theses and Dissertations
Rocket sonic booms are produced when launch vehicles or boosters travel faster than the local speed of sound in the atmosphere, generating systems of conical shock waves. The purpose of this dissertation is to perform high-fidelity measurements of rocket sonic booms and to explain the physics behind the unique phenomena observed. After a thorough literature review on sonic booms produced during spaceflight operations, Part I of this dissertation deals with measurement and analysis challenges. One challenge is reducing contaminating noise effects on sonic boom perception metrics, addressed using a low-pass filtering method tied to the noise floor. A second challenge …
Characterizing The Unique Chemical Imprint Of On-Axis, Lower-Temperature Hydrothermal Flow To The Deep Ocean (Southern East Pacific Rise, 16.5°–18.0°S), Laura E. Moore, Randelle M. Bundy, Joseph A. Resing, Scott M. White, Tamara Baumberger, Peter N. Sedwick, Nathaniel J. Buck, Anson M. Antriasian, Isaac Keohane
Characterizing The Unique Chemical Imprint Of On-Axis, Lower-Temperature Hydrothermal Flow To The Deep Ocean (Southern East Pacific Rise, 16.5°–18.0°S), Laura E. Moore, Randelle M. Bundy, Joseph A. Resing, Scott M. White, Tamara Baumberger, Peter N. Sedwick, Nathaniel J. Buck, Anson M. Antriasian, Isaac Keohane
Faculty Publications
In addition to high-temperature vents, lower-temperature flow (LTF) (< 300°C) is abundant along mid-ocean ridges and contributes globally-important fluxes of heat and water along with largely-unconstrained geochemical influences on the ocean. We examined the impact of on-axis LTF on the chemical composition of the overlying water column (< 40 m above seafloor) along the 16.5°–18.0°S sector of the ultrafast-spreading southern East Pacific Rise using autonomous underwater vehicle Sentry surveys and conductivity-temperature-depth rosette casts. LTF sites were typically spatially isolated from high-temperature systems and imparted unique chemical signatures to the overlying ocean. Water column samples impacted by LTF exhibited low particulate iron:sulfur ratios and high methane: total-dissolvable manganese ratios, whereas samples influenced by high-temperature venting exhibited opposite trends. We confirmed that LTF imparts a distinct and measurable chemical signature to the water column, independent from high-temperature vents. Isolated, on-axis LTF will be important to consider when assessing hydrothermal circulation impacts upon ocean biogeochemistry.
Real And Perceived Barriers To Effective Use Of Cataract Surgical Supplies, Caitlin Davie, Lindsay K. Cloud, Scott Burris, Shaina Shiwdin, Brooke Sherry, Christina R. Prescott, Joel Schuman, David Palmer, David Chang, Daniel Parra, Cordelia Kwon, Margaret A. Tharp, Cassandra L. Thiel
Real And Perceived Barriers To Effective Use Of Cataract Surgical Supplies, Caitlin Davie, Lindsay K. Cloud, Scott Burris, Shaina Shiwdin, Brooke Sherry, Christina R. Prescott, Joel Schuman, David Palmer, David Chang, Daniel Parra, Cordelia Kwon, Margaret A. Tharp, Cassandra L. Thiel
Wills Eye Hospital Papers
INTRODUCTION: Cataract surgery, among the most common procedures worldwide, significantly contributes to climate change through both solid waste and air pollution, highlighting the urgent need for targeted interventions. Implementation faces hurdles including legal constraints and concerns about infection risks and malpractice.
METHODS: This article examines federal and state regulatory structures around two key waste reduction strategies: reduction of multidose medications and distribution of partly-used operating room medication to patients post-surgery.
RESULTS: We find little-to-no legitimate regulatory barriers to either waste reduction practice. Dispensing and redistributing partly-used medication has been codified in law in some states. Evidence-based reports indicate minimal risks …