UNA Scholarly Repository
Not a member yet
2489 research outputs found
Sort by
Eye Tracking and Decision-Making in a Hypothetical Severe Weather Event.
Poster presentation examining a study looking at eye-tracking and decision making in a hypothetical severe weather situation.https://ir.una.edu/psych_facpresentations/1000/thumbnail.jp
Faculty Mentor & Librarian: Leading Original Research Toward Student Presentation
Our campus has an undergraduate research initiative. The culmination of the original research for each student is a presentation at the end of the year during “Scholars Week,” the annual showcase of research endeavors. Each student requires a faculty mentor in the undergraduate research process. This presentation will cover the first-time initiative, and now a sustained occurrence for our library; a librarian serving as the faculty research mentor. Now, four years into serving as a research faculty mentor: I’ll share what I’ve learned in the process regarding recruiting students (disciplines, background, academic standing, etc.), choosing research projects with students (ex. matching their research interest with mine), conducting the research, analyzing the research, and motivating toward presentation with extensive evaluation. Future initiatives and opportunities concerning outreach, the research process, and librarian-led research will also be discussed.https://ir.una.edu/libfacpresentation/1041/thumbnail.jp
Did It Help?: The Effects of Research Consultations on the Quality of Sources Used in an Undergraduate Class
Do individual research consultations with a librarian affect the quality of sources undergraduates cite in research papers? This presentation will examine the results of a study conducted to assess that very question. The study compared the quality of citations used by two sections of an upper-level education class. The same instructor taught both sections during two different semesters with the same assignment criteria. Students in one section participated in research consultations with a librarian. Members of the other class did not meet with a librarian. This research provided data for librarians to show their value to both teaching faculty and administrators.https://ir.una.edu/libfacpresentation/1042/thumbnail.jp
Effects of relativistic interactions in photodetachment time delay of Br\u3csup\u3e-\u3c/sup\u3e
© 2020 Journal of Physics: Conference Series. All rights reserved. Wigner time delay in photodetachment of Br-has been studied. The absence of Coulomb phase in photodetachment process makes the Wigner time delay more sensitive to the centrifugal barrier shape resonance and threshold effects. Important relativistic effects have been found near the threshold region
H4LO: Automation platform for efficient RF fingerprinting using SLAM-derived map and poses
© 2020 The Institution of Engineering and Technology. One of the main shortcomings of received signal strength-based indoor localisation techniques is the labour and timecost involved in acquiring labelled \u27ground-truth\u27 training data. This training data is often obtained through fingerprinting, whichinvolves visiting all prescribed locations to capture sensor observations throughout the environment. In this work, the authorspresent a helmet for localisation optimisation (H4LO): a low-cost robotic system designed to cut down on said labour by utilisingan off-the-shelf light detection and ranging device. This system allows for simultaneous localisation and mapping, providing thehuman user with accurate pose estimation and a corresponding map of the environment. The high-resolution location estimationcan then be used to train a positioning model, where received signal strength data is acquired from a human-worn wearabledevice. The method is evaluated using live measurements, recorded within a residential property. They compare the groundtruthlocation labels generated automatically by the H4LO system with a camera-based fingerprinting technique from previous work.They find that the system remains comparable in performance to the less efficient camera-based method, whilst removing theneed for time-consuming labour associated with registering the user\u27s location
Insights into the Dynamics Between Viruses and their Hosts in a Hot Spring Microbial Mat
© 2020, The Author(s). Our current knowledge of host–virus interactions in biofilms is limited to computational predictions based on laboratory experiments with a small number of cultured bacteria. However, natural biofilms are diverse and chiefly composed of uncultured bacteria and archaea with no viral infection patterns and lifestyle predictions described to date. Herein, we predict the first DNA sequence-based host–virus interactions in a natural biofilm. Using single-cell genomics and metagenomics applied to a hot spring mat of the Cone Pool in Mono County, California, we provide insights into virus–host range, lifestyle and distribution across different mat layers. Thirty-four out of 130 single cells contained at least one viral contig (26%), which, together with the metagenome-assembled genomes, resulted in detection of 59 viruses linked to 34 host species. Analysis of single-cell amplification kinetics revealed a lack of active viral replication on the single-cell level. These findings were further supported by mapping metagenomic reads from different mat layers to the obtained host–virus pairs, which indicated a low copy number of viral genomes compared to their hosts. Lastly, the metagenomic data revealed high layer specificity of viruses, suggesting limited diffusion to other mat layers. Taken together, these observations indicate that in low mobility environments with high microbial abundance, lysogeny is the predominant viral lifestyle, in line with the previously proposed “Piggyback-the-Winner” theory
SARS-CoV-2 (COVID-19) structural and evolutionary dynamicome: Insights into functional evolution and human genomics
© 2020 Gupta et al. The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has challenged the speed at which laboratories can discover the viral composition and study health outcomes. The small ∼30-kb ssRNA genome of coronaviruses makes them adept at cross-species spread while enabling a robust understanding of all of the proteins the viral genome encodes. We have employed protein modeling, molecular dynamics simulations, evolutionary mapping, and 3D printing to gain a full proteome- and dynamicome-level understanding of SARS-CoV-2. We established the Viral Integrated Structural Evolution Dynamic Database (VIStEDD at RRID:SCR_018793) to facilitate future discoveries and educational use. Here, we highlight the use of VIStEDD for nsp6, nucleocapsid (N), and spike (S) surface glycoprotein. For both nsp6 and N, we found highly conserved surface amino acids that likely drive protein-protein interactions. In characterizing viral S protein, we developed a quantitative dynamics cross-correlation matrix to gain insights into its interactions with the angiotensin I-converting enzyme 2 (ACE2)-solute carrier family 6 member 19 (SLC6A19) dimer. Using this quantitative matrix, we elucidated 47 potential functional missense variants from genomic databases within ACE2/SLC6A19/transmembrane serine protease 2 (TMPRSS2), warranting genomic enrichment analyses in SARS-CoV-2 patients. These variants had ultralow frequency but existed in males hemizygous for ACE2. Two ACE2 noncoding variants (rs4646118 and rs143185769) present in ∼9% of individuals of African descent may regulate ACE2 expression and may be associated with increased susceptibility of African Americans to SARS-CoV-2. We propose that this SARS-CoV-2 database may aid research into the ongoing pandemic
Teaching introductory programming from A to Z: Twenty-six tips from the trenches
© 2020, ISCAP- Information Systems and Computing Academic Professionals. A solid foundation in computer programming is critical for students to succeed in advanced computing courses, but teaching such an introductory course is challenging. Therefore, it is important to develop better approaches in order to improve teaching effectiveness and enhance student learning. In this paper, we present 26 tips for teaching introductory programming drawn from the experiences of four well-qualified college professors. It is our hope that our peers can pick up some tips from this paper, apply them in their own classroom, improve their teaching effectiveness, and ultimately enhance student learning
Market and Nonmarket Strategies (NMS) in China: Performance Payoffs in Turbulent Environments
© 2020, Springer Nature Limited. This paper investigates the financial and non-financial performance effects of strategic emphasis during times of market turbulence in China. A survey of 246 middle and upper-level managers in Beijing identified market turbulence as a direct driver of firm performance, a positive moderator of the link between market strategy and financial performance, and a negative moderator of the link between market strategy and non-financial performance. Market turbulence did not moderate links between either market strategy or nonmarket strategy and non-financial performance. These results suggest a performance payoff for leveraging NMS and a performance penalty for emphasizing market strategies during turbulent times
Effects of 3 weeks yogic breathing practice on ventilation and running economy
© 2020, Western Kentucky University. All rights reserved. Yogic breathing techniques (Pranayama) positively impact respiratory function (RF) in non-endurance trained individuals. The purpose of this study investigated effects of routine Pranayama practice on RF, running economy (RE) and perceptual responses. A between subject’s case-control study design was incorporated. Eleven runners practiced three styles of Pranayama (30 min/day 6 days/week) for 3 consecutive weeks (YG) and completed a VO2 max tests on a treadmill (trial 1), basic RF tests, and constant workload RE trials at 60, 70, and 80% VO2 max (trial 2 and 3). A control group (n = 10) (CT) completed the same pre – post testing without intervention. Pre vs. post values for resting forced vital capacity (FVC), peak expiratory flow rate (PEFR) and forced expiratory flow volume in one second (FEV1). Yoga improved FVC and FEV1, but did not significantly impact RE However, RPE-L for HIGH had an interaction (p \u3c 0.05) showing a decrease for YG and an increase for CT. The current study suggests 3 weeks of yogic Pranayama fails to significantly impact RE, however some evidence indicates YG may positively alter perceptual responses at individually prescribed workloads. More work is needed to definitively establish benefits of YG for runners