Digital Commons Network^™

Ensuring Quality In Qualitative Research: A Researcher's Reflections, Niroj Dahal

The Qualitative Report

This reflective paper is the outcome of my qualitative research engagement aligned with quality standards. I began with autoethnography in my master's research in mathematics education (see Dahal, 2013), then moved on to narrative inquiry in my MPhil research (see Dahal, 2017), and collaborative autoethnography in my doctoral research (see Dahal, 2023). With the above, this paper aims to clarify the quality criteria used in autoethnography, narrative inquiry, and collaborative autoethnography based on my experiences to evaluate the robustness of qualitative research from various ontological and epistemological vantage points. Likewise, this article offers a comprehensive overview of the key elements …

Mutation-Induced Changes In The Stability, B-Cell Epitope, And Antigenicity Of The Sars-Cov-2 Variant Spike Protein: A Comparative Computational Stud, Nira Meirita Wijayanti, Muhammad Hermawan Widyananda, Lailil Muflikhah, Nashi Widodo

Karbala International Journal of Modern Science

The spike (S) protein is a major antigenicity site that targets neutralizing antibodies and drugs. The growing number of S protein mutations has become a severe problem for developing effective vaccines. Here, we investigated four severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants that were the most infectious and widespread during the COVID-19 pandemic to determine the trends and patterns of mutation-induced changes in the stability, B-cell epitope, and antigenicity of the SARS-CoV-2 S protein. The data showed that the Beta and Gamma variants had three mutations on the receptor-binding domain (RBD), which is the specific site on the S …

Recent Manuscript Accessions To Historic Repositories In Mississippi, Mona Vance-Ali

Journal of Mississippi History

No abstract provided.

The Devil You Know And The Devil You Don’T: Current Status And Challenges Of Bovine Tuberculosis Eradication In The United States, Daniel J. O'Brien, Tyler C. Thacker, Liliana C.M. Salvador, Anthony G. Duffiney, Suelee Robbe‑Austerman, Mark S. Camacho, Jason E. Lombard, Mitchell V. Palmer

United States Department of Agriculture Wildlife Services: Staff Publications

Having entered into its second century, the eradication program for bovine tuberculosis (bTB, caused by Mycobacterium bovis) in the United States of America occupies a position both enviable and daunting. Excepting four counties in Michigan comprising only 6109 km2 (0.06% of US land area) classified as Modified Accredited, as of April 2022 the entire country was considered Accredited Free of bTB by the US Department of Agriculture for cattle and bison. On the surface, the now well-described circumstances of endemic bTB in Michigan, where white-tailed deer (Odocoileus virginianus) serve as a free-ranging wildlife maintenance host, may appear to be …

Using Small Uas For Stem Education: Introducing Robotics And Mechatronics With Drones, Christian Janke, Stefan Kleinke, Kimberly Luthi, Yuetong Lin

Florida Conference on Recent Advances in Robotics

Several global developments point to importance of STEM-related education and studies. Every industry sector faces challenges in the recruiting of qualified personnel, due to retiring employees and general economic growth. Also, several domains, foremost automotive and aviation are undergoing a tremendous shift towards electrification to achieve sustainability. Hence, sparking the interest in STEM studies, education and vocational training cannot start early enough. This paper introduces the benefits of the educational use of sUAS by identifying core benefits in the three domains of learning – cognitive, affective, psycho-motor. Preliminary data and survey results from from several science, technology, engineering and math …

The Quantum Mechanical Background Of Quantum Computing, Isaac Hanna

The Kabod

Quantum mechanics arose out of the question "Is light a particle or a wave?" and has laid forth a model of reality in which particles are modeled by wave functions. The particle is in a superposition of states and can be entangled with other particles to create more complex systems. Observation of the system collapses the wave function to a single point. By using quantum gates, we can manipulate these particles to create algorithms to solve computational problems. Quantum computing does not collapse the complexity hierarchy by providing an across the board exponential speedup but can provide such a speedup …

Supporting Data For Figures In "Mixing Of The Connecticut River Plume During Ambient Flood Tides: Spatial Heterogeneity And Contributions Of Bottom-Generated And Interfacial Mixing", Michael M. Whitney

Department of Marine Sciences

This archive contains the supporting data for figures in the manuscript "Mixing of the Connecticut River plume during ambient flood tides: Spatial heterogeneity and contributions of bottom-generated and interfacial mixing" by Michael M. Whitney. The objectives of this modeling study are 1) characterizing the spatial heterogeneity of turbulent buoyancy fluxes, 2) partitioning turbulent buoyancy fluxes into bottom-generated and interfacial shear contributions, and 3) quantifying contributions to plume-integrated mixing within the tidal plume. Data are from the Regional Ocean Modeling System (ROMS) results for idealized model configurations. The Zip file (Figure_data.zip) contains MATLAB data files, which are named FigureXX_data.mat. Variable names …

Environmental And Socio-Economic Stress In The Mountain West, Ayda Atici, Caitlin J. Saladino, Fatma Nasoz, William E. Brown Jr.

Environment

This fact sheet examines data on environmental and socio-economic risk metrics including which metrics pose the most risk for Nevada counties.The data are retrieved from “System for the Triage of Risks from Environmental and Socio-Economic Stressors” created by the Massachusetts Institute of Technology (MIT) joint program on the science and policy of global change.

Clemson Commencement Program, August 2023, Clemson University

Clemson Commencement Programs

No abstract provided.

Engagement In Secondary Mathematics Group Work: A Student Perspective, Rachel H. Jorgenson

Theses and Dissertations

In the realm of academic engagement research, students are valuable sources of information to learn how and why students often engage unproductively in mathematics group work. However, although secondary mathematics students are often expected to engage in meaningful mathematical discourse in a small group setting, little research has been conducted to better understand student engagement in this setting from the perspective of the students themselves. This thesis attempts to understand how one junior high student described his own engagement in mathematics small group work as well as what factors influenced this engagement. By conducting several cycles of observations and interviews …

The Study Of Plasmonic Chip Of Nata De Sago-Green Silver Nanoparticles For Detection Of Blood Glucose, Abdul Haris Haris Watoni, La Ode A. Nur Ramadhan, Evy Nuryah Adha, Robby Sudarman

Chimica et Natura Acta

The innovation of rapid blood glucose level detectors using chemical sensors still needs to be carried out continuously. Nata de sago has good potential as a safe sensor chip for blood glucose detection. To increase the detection speed, this sensor chip can be composited with silver nanoparticles (AgNPs)-bidara leaf extract which has plasmonic properties when interacting with visible radiation. The principle of blood glucose detection with the nata de sago-AgNPs-bidara leaf extract composite chip is based on van der Waals interactions between the functional groups in nata de sago and the hydroxyl groups in glucose compounds which are strengthened by …

Asset: Auto-Segmentation Of The Seventeen Segments For Ventricular Tachycardia Ablation In Radiation Therapy, Eric Morris, Robert Chin, Trudy Wu, Clayton Smith, Siamak Nejad-Davarani, Minsong Cao

2020-Current year OA Pubs

There has been a recent effort to treat high-risk ventricular tachycardia (VT) patients through radio-ablation. However, manual segmentation of the VT target is complex and time-consuming. This work introduces ASSET, or Auto-segmentation of the Seventeen SEgments for Tachycardia ablation, to aid in radiation therapy (RT) planning. ASSET was retrospectively applied to CTs for 26 thoracic RT patients (13 undergoing VT ablation). The physician-defined parasternal long-axis of the left ventricle (LV) and the axes generated from principal component analysis (PCA) were compared using mean distance to agreement (MDA) and angle of separation. The manually selected right ventricle insertion point and LVs …

The Generalizability Of Proposed Theoretical Factor Models For Common Assessments For Specific Learning Disability In Reading Using A Community Sample, Sean B. Vanhille

Theses and Dissertations

Specific learning disabilities (SLD) are among the most diagnosed developmental disorders in children, with specific learning disability in reading (SLDR) as the most common. SLDR typically occurs due to deficits in phonological processing that can negatively impact decoding and/or reading comprehension skills. Reading deficits are often diagnosed using formal assessments such as the Comprehensive Test of Phonological Processing (CTOPP-2), the Gray Oral Reading Test (GORT-5), the Wechsler Intelligence Scale for Children (WISC-V), and the Woodcock Johnson Achievement Battery (WJ-IV-A). I did not find any research in which the theoretical factor models proposed in the technical manuals of these assessments were …

Nmda Receptor Inhibition On Rodent Optimal Decision-Making In The Diminishing Returns Task, Seth Foust

Research Psychology Theses

There has been growing interest in using N-methyl-D-aspartate (NMDA) receptor antagonists as treatments for mood disorders, but there is still much to learn about their cognitive effects. Research shows NMDA receptors can affect decision-making, and the antagonist MK-801 has had varying effects in rodents. Specifically, some have reported impairments in working memory while foraging behaviors remained intact, while others have demonstrated changes in choice behavior related to delay or risk in behavior tasks. We investigated the role of NMDA receptors in the specific paradigm of optimal decision-making to further confirm MK-801’s effects and to explore whether inhibiting NMDA receptors alters …

Parents' Perceptions Of The Importance Of Teaching Mathematics: A Q-Study, Ashlynn M. Holley

Theses and Dissertations

Mathematics education has gone through multiple reform efforts over the last century and continues to be the target of improvement efforts. Past changes in curriculum and goals have sometimes led to heated debates between various stakeholders. Knowing the views of different stakeholders can help determine what common ground there is between these different groups and where areas of disagreement might arise. Parents are especially important to understand because they have been influential in past reform efforts. Despite the importance of parents' opinions, little research has been conducted concerning their perspectives on the importance of mathematics teaching. Using Q-methodology, I was …

Bidirectional Interference Between Speech And Mathematical, Language, Or Visuospatial Tasks In Younger And Older Adults, Chanelle Thomas

Theses and Dissertations

This study examined interference between three non-speech tasks and concurrent speech performance. The non-speech activity consisted of computer-based mathematical, language, and visuospatial tasks. The speech tasks included a procedural discourse monologue and a conversation. Participants included 60 adults in two age groups with 30 participants each. The younger adults were aged from 18 to 30 years and older adults from 55 to 82 years. Each participant completed the non-speech tasks in isolation, the speech tasks in isolation, and then each of the speech tasks concurrently with each of the three non-speech tasks. Speech acoustic measures included the mean and standard …

Steroid Dari Kulit Batang Aglaia Glabrata Dan Aktivitas Sitotoksinya Terhadap Sel Kanker Leukemia P-388, Risyandi Anwar, Desi Harneti, Vidia Afina Nuraini, Faizah Maira, Nurlelasari Nurlelasari, Tri Mayanti, Rani Maharani, Unang Supratman, Khalijah Awang

Chimica et Natura Acta

Steroid saponin baru, b-sitosterol-3-O-beta-D-galaktopiranosil-(1-4)-beta-D-glukopiranosida (1), bersama dengan empat steroid yang diketahui (2-5) diisolasi dari kulit batang dari Aglaia glabrata. Struktur kimia senyawa baru dijelaskan berdasarkan data-data spektroskopi. Semua senyawa diuji aktivitas sitotoksiknya terhadap sel kanker leukemia murine P-388. Diantara senyawa yang diisolasi tersebut, stigmasterol (4) menunjukkan aktivitas sitotoksik terkuat dengan nilai IC50 sebesar 12.2 mg/mL.

Review Article: Effect Of Co-Expression Chaperones On The Expression Of Intracellular Recombinant Proteins In Escherichia Coli, Diandra Firdiani Utami, Mamlikatu Ilmi Azizah, Sriwidodo Sriwidodo, Ryan Adibagus Haryanto, Riyona Desvy Pratiwi, Iman Permana Maksum

Chimica et Natura Acta

Escherichia coli is widely used as a host for expressing recombinant proteins due to its well-studied genetics, fast growth, relatively low production costs, and high rate of protein expression. However, despite the high rate of protein expression, the availability of chaperone proteins was often insufficient, resulting in the formation of inclusion bodies due to errors in protein folding. These inclusion bodies can cause the protein to become inactive, and proper protein folding is crucial for maintaining the structure and function of proteins in living organisms. To overcome this limitation, chaperones have been developed as a strategy to help prevent protein …

Review, Dark Mirror: Edward Snowden And The American Surveillance State, By Barton Gellman, Patrice Mcdermott

Secrecy and Society

No abstract provided.

Daunting Encounters: La Hague’S Infrastructures Of Secrecy, Agnes Villette

Secrecy and Society

The article explores secrecy, more particularly, nuclear secrecy in relation to two nuclear facilities situated at the tip of the Norman peninsula of La Hague, in France. Both sites - the CSM nuclear waste repository and the close-by refueling plant - were developed at the end of the 1960s in connection with France’s extensive civil and military nuclear program. While institutional archives and access to the sites remain tedious, the article contends that the nuclear secrecy shielding the facilities can be approached by unpacking the numerous accidents that took place at the site. Silenced and subjected to amnesia, spills and …

Optimization Of A Constellation Deployment And Renewal With Petri Nets, Anton Roig

Small Satellite Conference

This poster analyzes deployment scenarios of the IoT constellation SIROCO in order to characterize the impacts of the working hypotheses – including the type and number of satellites, the in-orbit stock management, the reliability of the satellites and launchers – on the expected performances and costs of the system.

Simple Scheduling Algorithm For Growing Constellations, Lauren Fitzgibbon, Chris Shaffer

Small Satellite Conference

As the number of satellites in orbit grows, satellite constellation operators must consider better ways to balance the usage of ground assets. In general, ground asset availability does not grow linearly with the number of satellites launched, so alternative approaches to divide usage amongst a limited number of ground assets are required. While advanced techniques exist to manage these factors, they are often not practical for small and growing constellation managers.

The authors have developed a computationally simple method for dividing available antenna time between satellites, considering available access windows. This was designed to adapt to any number of heterogenous …

Enabling Mission Success: A Student's Perspective On Developing A Ground Station, Sean Svihla, Adrian Bryant, Lucia Witikko

Small Satellite Conference

In recent years, The University of Colorado Boulder’s Laboratory for Atmospheric and Space Physics (LASP) has grown its SmallSat Operations (SMOPS) program into a large team of students and professionals managing the operations of multiple SmallSat missions. The team responsible for the on-site ground station (GSOPS) includes a small team of students alongside professionals who help manage the on-site UHF and S-band antennas, making use of open-source, commercial, and in-house software. In this process, the student ground station team has adapted the limited time and resources of a single ground station to accommodate the needs and science objectives of multiple …

Educational And Real-World Satellite Mission Operations Center At The Us Naval Academy, Noah Loftis, Ethan Schneider, Christine Maceo, Jin S. Kang, Michael Sanders

Small Satellite Conference

For successful satellite missions at the United States Naval Academy (USNA), a critical element is the
/="/">establishment of a capable and dynamic Satellite Mission Operations Center (SOC). In addition to powerful hardware, flexibility and adaptability allow the SOC to continue to support operations, even as new protocols arise and communication architectures change with the rapid pace of small satellite advancement. Software-defined radios (SDRs) provide the necessary flexibility for the SOC to easily change configurations and network with other ground stations. However, the resulting high-tech, turn-key operations of an advanced SOC tend to alienate students from hands-on learning experiences. The …

Space Station Operations Capabilities In A Shoebox: Marshall Space Flight Center’S Telescience Resource Kit, Jeff Lippincott, Michelle Schneider, Steve Chubb, Sam Digesu, Darren Wallace

Small Satellite Conference

The International Space Station (ISS) has provided the world an unprecedented capability, establishing a continuous human foothold in outer space for more than 22 years now. But maintaining that capability and supporting the ambitious portfolio of scientific research it hosts has required another unprecedented capability – providing ground-based operations support for the crew and a diverse manifest of research payloads, all simultaneously. To help meet this challenge, NASA’s Marshall Space Flight Center (MSFC) developed TReK, the Telescience Resource Kit, providing a robust solution for data, command, metadata, and file transfer capabilities. In response to an increasingly wide and diverse need …

Supporting Data For Figures In "Wind-Enhanced Separation Of Large-Scale River Plumes From Coastal Corners", Michael M. Whitney

Department of Marine Sciences

This archive contains the supporting data for figures in the manuscript "Wind-enhanced separation of large-scale river plumes from coastal corners" by Michael M. Whitney. This study analyzes idealized models to quantify how large-scale river plumes and wind-driven currents interact at perpendicular coastal corners. Data are from the Regional Ocean Modeling System (ROMS) results for idealized model configurations. The Zip file (Figure_data.zip) contains MATLAB data files, which are named FigureXX_data.mat. Variable names and units correspond to graphed data of each figure in manuscript. Full descriptions of research methods and results are included in manuscript.

A Comparative Study Of A Machine Learning Approach And Response Surface Methodology For Optimizing The Hpt Processing Parameters Of Aa6061/Sicp Composites, Waleed H. El-Garaihy, Abdulrahman I. Alateyah, Mahmoud Shaban, Mohammed F. Alsharekh

Faculty Journal Articles

No abstract provided.

Conquer And Prevail Issue 144 August 10 2023, Wofford College. Office Of Marketing And Communications

Conquer and Prevail Newsletter

No abstract provided.

Ranking And Analysis The Strategies Of Crowd Management To Reduce The Risks Of Crushes And Stampedes In Crowded Environments And Ensure The Safety Of Passengers, Waleed Tawfiq Al-Nami

Neutrosophic Systems with Applications

Public gatherings, transit hubs, stadiums, and crowded retail malls are just a few examples of places where crowd management has become an urgent issue in recent years. Effective crowd management strategies have been required due to the increasing population, urbanization, and frequency of large-scale meetings. These strategies are used in dynamic, sometimes chaotic, circumstances to protect people and facilitate their free movement. The purpose of this study is to analyze and rank various strategies for crowd management to reduce the risks of crushes and stampedes, improve security, and facilitate smoother traffic flow. This study used the single-valued neutrosophic set to …

Physics-Guided Modeling Of Acoustic Environments Using Limited Spatio-Spectro-Temporal Data, Mylan Ray Cook

Theses and Dissertations

When creating data-based models it is important to include the underlying physical characteristics and constraints of the data. If physical characteristics are not properly included in the model, results may be infeasible or physically impossible. Acoustic environments are better characterized by ensuring that models include the fundamental spatial, spectral, and temporal characteristics of noise sources, or how they change based on location, frequency, and time. When model data are limited, in availability or in reliability, additional care must be taken to ensure models predict feasible results. This dissertation focuses on physics-guided modeling of acoustic environments using limited data, taking into …