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Articles 7681 - 7710 of 45762
Full-Text Articles in Entire DC Network
Emr: A New Metric To Assess The Resilience Of Directional Mmwave Channels To Blockages, Faith Erden, Ozgur Ozdemir, Ismail Guvenc, David W. Matolak
Emr: A New Metric To Assess The Resilience Of Directional Mmwave Channels To Blockages, Faith Erden, Ozgur Ozdemir, Ismail Guvenc, David W. Matolak
Faculty Publications
Millimeter-wave (mmWave) communication systems require narrow beams to compensate for high path loss and to increase the communication range. If an obstacle blocks the dominant communication direction, alternative paths (directions) should be quickly identified to maintain reliable connectivity. In this paper, we introduce a new metric to quantify the Effective Multipath Richness (EMR) of a directional communication channel in the angular domain. In particular, the proposed metric takes into account the strength and spatial diversity of the resolved Multipath Components (MPCs), while also considering the beamwidth of the communication link and the blockage characteristics. The metric is defined as a …
Recognition And Screening For Chagas Disease In The Usa, Rachel Marcus, Andres F. Henao-Martinez, Melissa Nolan Ph.D., Mph, Elizabeth Livingston, Stephen A. Klotz, Robert H. Gilman, Monica Miranda-Schaeubinger, Sheba Meymandi
Recognition And Screening For Chagas Disease In The Usa, Rachel Marcus, Andres F. Henao-Martinez, Melissa Nolan Ph.D., Mph, Elizabeth Livingston, Stephen A. Klotz, Robert H. Gilman, Monica Miranda-Schaeubinger, Sheba Meymandi
Faculty Publications
Chagas disease (CD), caused by the protozoan Trypanosoma cruzi, is a public health concern, mainly among countries in South and Central America. However, despite the large number of immigrants from endemic countries living in the USA, awareness of CD is poor in the medical community, and therefore it is significantly underdiagnosed. To avoid the catastrophic cardiac complications of CD and to prevent maternal–fetal transmission, widespread educational programs highlighting the need for diagnosis are urgently needed.
Diversity In Innovation Best Practices Guide, Laura Norris, Mary Fuller, Joy Peacock, Sydney Yazzolino
Diversity In Innovation Best Practices Guide, Laura Norris, Mary Fuller, Joy Peacock, Sydney Yazzolino
Faculty Publications
In 2020, the USPTO collaborated with the HTLI to propose a study designed to increase diversity in the patenting process, specifically targeted to in-house legal / IP department and their practices. The goal of the study was simple - harvesting the collective knowledge of nationwide IP professionals and producing an “insanely practical” guide to expand inventorship to a more diverse inventor population. By “diverse” we mean underrepresented or historically marginalized groups in the United States patent system. The term "diversity" can be interpreted differently in different countries. The HTLI research team collected this extensive list of over 90 best practice …
Towards Detection Of Sars-Cov-2 Rna In Human Saliva: A Paper-Based Cell-Free Toehold Switch Biosensor With A Visual Bioluminescent Output, J. Porter Hunt, Emily Long Zhao, Tyler J. Free, Mehran Soltani, Chandler A. Warr, Alex B. Benedict, Melissa K. Takahashi, Joel S. Griffitts, William G. Pitt, Bradley C. Bundy
Towards Detection Of Sars-Cov-2 Rna In Human Saliva: A Paper-Based Cell-Free Toehold Switch Biosensor With A Visual Bioluminescent Output, J. Porter Hunt, Emily Long Zhao, Tyler J. Free, Mehran Soltani, Chandler A. Warr, Alex B. Benedict, Melissa K. Takahashi, Joel S. Griffitts, William G. Pitt, Bradley C. Bundy
Faculty Publications
The COVID-19 pandemic has illustrated the global demand for rapid, low-cost, widely distributable and point-of-care nucleic acid diagnostic technologies. Such technologies could help disrupt transmission, sustain economies and preserve health and lives during widespread infection. In contrast, conventional nucleic acid diagnostic procedures require trained personnel, complex laboratories, expensive equipment, and protracted processing times. In this work, lyophilized cell-free protein synthesis (CFPS) and toehold switch riboregulators are employed to develop a promising paper-based nucleic acid diagnostic platform activated simply by the addition of saliva. First, to facilitate distribution and deployment, an economical paper support matrix is identified and a mass-producible test …
Concussion History And Heart Rate Variability During Bouts Of Acute Stress, Adam Harrison, Abbi Lane-Cordova, Michael F. La Fountaine, Robert Davis Moore Ms, Ph.D.
Concussion History And Heart Rate Variability During Bouts Of Acute Stress, Adam Harrison, Abbi Lane-Cordova, Michael F. La Fountaine, Robert Davis Moore Ms, Ph.D.
Faculty Publications
Context
After a sport-related concussion, many athletes experience persisting neurophysiological alterations. These alterations may be absent at rest but emerge during moments of physiological stress. Unnoticed and untreated neurophysiological dysfunction may negatively affect long-term neurologic health in adolescent athletes, as they are at a critical point in development. Objective
To assess cardio-autonomic functioning in athletes with and those without a history of concussion by quantifying measures of heart rate variability (HRV) during times of physical and mental exertion. Design
Case-control study. Setting
Research laboratory. Patients or Other Participants
Thirty-four male Hockey Quebec Midget-AAA hockey players were separated into those with …
Advancing Use Of Nutrition Knowledge To Improve Practice By Policy And Program Communities In India During A Political Transition, Edward A. Frongillo Jr., Jessica L. Escobar-Alegria
Advancing Use Of Nutrition Knowledge To Improve Practice By Policy And Program Communities In India During A Political Transition, Edward A. Frongillo Jr., Jessica L. Escobar-Alegria
Faculty Publications
Models are needed for how to advance use of knowledge by programs and policy officials to make evidence-based decisions about nutrition. How to advance use of nutrition knowledge in India from 2011 to 2015 during a political transition was investigated through studying a knowledge initiative led by the International Food Policy Research Institute. Semistructured interviews were conducted with 37 diverse participants, and 1091 news articles, 318 Twitter and 175 Facebook posts, 12 YouTube events, 65 knowledge products, and 130 engaging events were assessed. Open-axial coding, content and themes analysis, triangulation, and process tracing were used. The knowledge initiative analyzed the …
The Ghost Of Hosts Past: Impacts Of Host Extinction On Parasite Specificity, Maxwell J. Farrell, Andrew W. Park, Clayton E. Cressler, Tad Dallas, Shan Huang, Nicole Mideo, Ignacio Morales-Castilla, T. Jonathan Davies, Patrick Stephens
The Ghost Of Hosts Past: Impacts Of Host Extinction On Parasite Specificity, Maxwell J. Farrell, Andrew W. Park, Clayton E. Cressler, Tad Dallas, Shan Huang, Nicole Mideo, Ignacio Morales-Castilla, T. Jonathan Davies, Patrick Stephens
Faculty Publications
A growing body of research is focused on the extinction of parasite species in response to host endangerment and declines. Beyond the loss of parasite species richness, host extinction can impact apparent parasite host specificity, as measured by host richness or the phylogenetic distances among hosts. Such impacts on the distribution of parasites across the host phylogeny can have knock-on effects that may reshape the adaptation of both hosts and parasites, ultimately shifting the evolutionary landscape underlying the potential for emergence and the evolution of virulence across hosts. Here, we examine how the reshaping of host phylogenies through extinction may …
Agency: What Does It Mean To Be A Human Being?, Richard N. Williams, Edwin E. Gantt, Lane Fischer
Agency: What Does It Mean To Be A Human Being?, Richard N. Williams, Edwin E. Gantt, Lane Fischer
Faculty Publications
This paper will look at the results of what has been termed “the crisis of modernism” and the related rise of postmodern perspectives in the 19th and 20th centuries. It concentrates on what is arguably the chief casualty of this crisis – human agency – and the social science that has developed out of the crisis. We argue that modern and postmodern social science ultimately obviate human agency in the understanding of what it means to be a human being. Attention is given to the contemporary intellectual world and the way in which it has been deeply informed by neo-Hegelian …
Does A Bottom-Up Mechanism Promote Hypoxia In The Mississippi Bight?, Virginie Sanial, Willard S. Moore, Alan M. Shiller
Does A Bottom-Up Mechanism Promote Hypoxia In The Mississippi Bight?, Virginie Sanial, Willard S. Moore, Alan M. Shiller
Faculty Publications
The Mississippi Bight, east of the Mississippi River, is a complex coastal ecosystem that, like the better-known Louisiana Shelf to the west, experiences seasonal bottom water hypoxia. However, input of allochthonous nutrients from the Mississippi River to the Mississippi Bight appears to be limited, begging the question of what drives seasonal hypoxia in this system. Prior research has suggested submarine groundwater discharge (SGD) could be an overlooked component of the Mississippi Bight biogeochemical system. We thus examined the hypothesis that SGD provides a “bottom up” driver for seasonal hypoxia in this area. We used a multi-tracer approach based on known …
The Future Of Zoonotic Risk Prediction, Colin J. Carlson, Maxwell J. Farrell, Zoe Grange, Barbara A. Han, Nardus Mollentze, Alexandra L. Phelan, Angela L. Rasmussen, Gregory F. Albery, Bernard Bett, David M. Brett-Major, Lily E. Cohen, Tad Dallas, Evan A. Eskew, Anna C. Fagre, Kristian M. Forbes, Rory Gibb, Sam Halabi, Charlotte C. Hammer, Rebecca Katz, Jason Kindrachuk, Renata L. Muylaert, Felicia B. Nutter, Joseph Ogola, Kevin J. Olival, Michelle Rourke, Sadie J. Ryan, Noam Ross, Stephanie N. Seifert, Tarja Sironen, Claire J. Standley, Kishana Taylor, Marietjie Venter, Paul W. Webala
The Future Of Zoonotic Risk Prediction, Colin J. Carlson, Maxwell J. Farrell, Zoe Grange, Barbara A. Han, Nardus Mollentze, Alexandra L. Phelan, Angela L. Rasmussen, Gregory F. Albery, Bernard Bett, David M. Brett-Major, Lily E. Cohen, Tad Dallas, Evan A. Eskew, Anna C. Fagre, Kristian M. Forbes, Rory Gibb, Sam Halabi, Charlotte C. Hammer, Rebecca Katz, Jason Kindrachuk, Renata L. Muylaert, Felicia B. Nutter, Joseph Ogola, Kevin J. Olival, Michelle Rourke, Sadie J. Ryan, Noam Ross, Stephanie N. Seifert, Tarja Sironen, Claire J. Standley, Kishana Taylor, Marietjie Venter, Paul W. Webala
Faculty Publications
In the light of the urgency raised by the COVID-19 pandemic, global investment in wildlife virology is likely to increase, and new surveillance programmes will identify hundreds of novel viruses that might someday pose a threat to humans. To support the extensive task of laboratory characterization, scientists may increasingly rely on data-driven rubrics or machine learning models that learn from known zoonoses to identify which animal pathogens could someday pose a threat to global health. We synthesize the findings of an interdisciplinary workshop on zoonotic risk technologies to answer the following questions. What are the prerequisites, in terms of open …
Increasing The Spatial And Temporal Impact Of Ecological Research: A Roadmap For Integrating A Novel Terrestrial Process Into An Earth System Model, Emily Kyker-Snowman, Danica L. Lombardozzi, Gordon B. Bonan, Susan J. Cheng, Jeffrey S. Dukes, Serita D. Frey, Elin M. Jacobs, Risa Mcnellis, Joshua M. Rady, Nicholas G. Smith, R. Quinn Thomas, William R. Wieder, A. Stuart Grandy
Increasing The Spatial And Temporal Impact Of Ecological Research: A Roadmap For Integrating A Novel Terrestrial Process Into An Earth System Model, Emily Kyker-Snowman, Danica L. Lombardozzi, Gordon B. Bonan, Susan J. Cheng, Jeffrey S. Dukes, Serita D. Frey, Elin M. Jacobs, Risa Mcnellis, Joshua M. Rady, Nicholas G. Smith, R. Quinn Thomas, William R. Wieder, A. Stuart Grandy
Faculty Publications
Terrestrial ecosystems regulate Earth's climate through water, energy, and biogeochemical transformations. Despite a key role in regulating the Earth system, terrestrial ecology has historically been underrepresented in the Earth system models (ESMs) that are used to understand and project global environmental change. Ecology and Earth system modeling must be integrated for scientists to fully comprehend the role of ecological systems in driving and responding to global change. Ecological insights can improve ESM realism and reduce process uncertainty, while ESMs offer ecologists an opportunity to broadly test ecological theory and increase the impact of their work by scaling concepts through time …
Patterns And Trends Of Organic Matter Processing And Transport: Insights From The Us Long-Term Ecological Research Network, Tamara K. Harms, Peter M. Groffman, Lihini Aluwihare, Christopher Craft, William R. Wieder, Sarah E. Hobbie, Sara G. Baer, John M. Blair, Serita D. Frey, Christina K. Remucal, Jennifer A. Rudgers, Scott L. Collins, John S. Kominoski, Becky A. Ball, Lter Om Working Group
Patterns And Trends Of Organic Matter Processing And Transport: Insights From The Us Long-Term Ecological Research Network, Tamara K. Harms, Peter M. Groffman, Lihini Aluwihare, Christopher Craft, William R. Wieder, Sarah E. Hobbie, Sara G. Baer, John M. Blair, Serita D. Frey, Christina K. Remucal, Jennifer A. Rudgers, Scott L. Collins, John S. Kominoski, Becky A. Ball, Lter Om Working Group
Faculty Publications
Organic matter (OM) dynamics determine how much carbon is stored in ecosystems, a service that modulates climate. We synthesized research from across the US Long-Term Ecological Research (LTER) Network to assemble a conceptual model of OM dynamics that is consistent with inter-disciplinary perspectives and emphasizes vulnerability of OM pools to disturbance. Guided by this conceptual model, we identified unanticipated patterns and long-term trends in processing and transport of OM emerging from terrestrial, freshwater, wetland, and marine ecosystems. Cross-ecosystem synthesis combined with a survey of researchers revealed several themes: 1) strong effects of climate change on OM dynamics, 2) surprising patterns …
Moving Forward?, Andrea Luxton
Adolescent Victim Types Across The Popularity Status Hierarchy: Differences In Internalizing Symptoms, Sarah T. Malamut, Molly Dawes, Yvonne Van Den Berg, Tessa A.M. Lansu, David Schwartz, Antonius H.N. Cillessen
Adolescent Victim Types Across The Popularity Status Hierarchy: Differences In Internalizing Symptoms, Sarah T. Malamut, Molly Dawes, Yvonne Van Den Berg, Tessa A.M. Lansu, David Schwartz, Antonius H.N. Cillessen
Faculty Publications
Previous studies have called attention to the fact that popular youth are not immune to peer victimization, suggesting there is heterogeneity in the popularity of victims. Yet, no study to date has determined whether victims with different levels of popularity status can be identified using person-oriented analysis. Such analysis is critically needed to confirm the existence of popular victims. Further, there remains a paucity of research on internalizing indices of such popular victims, especially compared to other victim and non-victim groups. To address this gap in the research literature, the current study used latent profile analysis to identify subgroups of …
A Structural Study Of The Cytoplasmic Chaperone Effect Of 14-3-3 Proteins On Ataxin-1, Seppe Leysen, Rebecca Jane Burnley, Elizabeth Rodriguez, Lech-Gustav Milroy, Lorenzo Soini, Carolyn J. Adamski, Larissa Nitschke, Rachel Davis, Tomas Obsil, Lucas Brunsveld, Tom Crabbe, Huda Yahya Zoghbi, Christian Ottmann, Jeremy Martin Davis
A Structural Study Of The Cytoplasmic Chaperone Effect Of 14-3-3 Proteins On Ataxin-1, Seppe Leysen, Rebecca Jane Burnley, Elizabeth Rodriguez, Lech-Gustav Milroy, Lorenzo Soini, Carolyn J. Adamski, Larissa Nitschke, Rachel Davis, Tomas Obsil, Lucas Brunsveld, Tom Crabbe, Huda Yahya Zoghbi, Christian Ottmann, Jeremy Martin Davis
Faculty Publications
Expansion of the polyglutamine tract in the N terminus of Ataxin-1 is the main cause of the neurodegenerative disease, spinocerebellar ataxia type 1 (SCA1). However, the C-terminal part of the protein - including its AXH domain and a phosphorylation on residue serine 776 - also plays a crucial role in disease development. This phosphorylation event is known to be crucial for the interaction of Ataxin-1 with the 14-3-3 adaptor proteins and has been shown to indirectly contribute to Ataxin-1 stability. Here we show that 14-3-3 also has a direct anti-aggregation or "chaperone" effect on Ataxin-1. Furthermore, we provide structural and …
Identifying Effective Intervention Strategies To Reduce Children’S Screen Time: A Systematic Review And Meta-Analysis, Alexis Jones, Bridget Armstrong Ph.D., Robert Glenn Weaver M.Ed., Phd, Hannah Parker, Lauren Von Klinggraeff, Michael W. Beets Ph.D.
Identifying Effective Intervention Strategies To Reduce Children’S Screen Time: A Systematic Review And Meta-Analysis, Alexis Jones, Bridget Armstrong Ph.D., Robert Glenn Weaver M.Ed., Phd, Hannah Parker, Lauren Von Klinggraeff, Michael W. Beets Ph.D.
Faculty Publications
Background
Excessive screen time (≥ 2 h per day) is associated with childhood overweight and obesity, physical inactivity, increased sedentary time, unfavorable dietary behaviors, and disrupted sleep. Previous reviews suggest intervening on screen time is associated with reductions in screen time and improvements in other obesogenic behaviors. However, it is unclear what study characteristics and behavior change techniques are potential mechanisms underlying the effectiveness of behavioral interventions. The purpose of this meta-analysis was to identify the behavior change techniques and study characteristics associated with effectiveness in behavioral interventions to reduce children’s (0–18 years) screen time.
Methods
A literature search of …
Physical Activity In Out Of School Hours Care: An Observational Study, Ruth K. Crowe, Yasmine C. Probst, Rebecca M. Stanley, Sarah T. Ryan, Robert Glenn Weaver Med, Phd, Michael W. Beets Med, Mph, Phd, Jennifer A. Norman, Susan E. Furber, Ceco;Oa Vuong, Megan L. Hammersley, Karen Wardle, Lisa Franco, Marc Davies, Christine Innes-Hughes, Anthony D. Okely
Physical Activity In Out Of School Hours Care: An Observational Study, Ruth K. Crowe, Yasmine C. Probst, Rebecca M. Stanley, Sarah T. Ryan, Robert Glenn Weaver Med, Phd, Michael W. Beets Med, Mph, Phd, Jennifer A. Norman, Susan E. Furber, Ceco;Oa Vuong, Megan L. Hammersley, Karen Wardle, Lisa Franco, Marc Davies, Christine Innes-Hughes, Anthony D. Okely
Faculty Publications
Background
Opportunities for physical activity within out of school hours care (OSHC) are not well documented in Australia. This study explored factors associated with children (5–12 years) meeting 30 min of moderate to vigorous physical activity (MVPA) while attending OSHC in the afternoon period.
Methods
A cross-sectional study, conducted in 89 OSHC services in New South Wales, Australia, serving 4,408 children. Each service was visited twice between 2018–2019. Physical activity promotion practices were captured via short interviews and System for Observing Staff Promotion of Physical Activity and Nutrition (SOSPAN). Physical activity spaces was measured (m2) and physical activity of 3,614 …
Improving K-12 Teachers’ Acceptance Of Open Educational Resources By Open Educational Practices: A Mixed Methods Inquiry, Hengtao Tang, Yu-Ju Lin, Yingxiao Qian
Improving K-12 Teachers’ Acceptance Of Open Educational Resources By Open Educational Practices: A Mixed Methods Inquiry, Hengtao Tang, Yu-Ju Lin, Yingxiao Qian
Faculty Publications
Teachers in K-12 settings increasingly demand instructional materials beyond textbooks to follow the upward momentum of personalized instruction. Especially during the outbreak of COVID-19, K-12 teachers are forced to quickly adapt to online teaching and thus have more difficulties of delivering personalized instruction in a relatively resource-restraint situation. Open educational resources (OER), allowing teachers to retain, reuse, revise, remix, and redistribute high-quality educational resources at no costs, can be a viable option for teachers. However, the acceptance of OER in K-12 education still remains low. Effective strategies are needed to reinforce teacher intention to adopt OER. This research showcased a …
Cognition-Enhanced Machine Learning For Better Predictions With Limited Data, Florian Sense, Ryan Wood, Michael G. Collins, Joshua Fiechter, Aihua W. Wood, Michael Krusmark, Tiffany Jastrzembski, Christopher W. Myers
Cognition-Enhanced Machine Learning For Better Predictions With Limited Data, Florian Sense, Ryan Wood, Michael G. Collins, Joshua Fiechter, Aihua W. Wood, Michael Krusmark, Tiffany Jastrzembski, Christopher W. Myers
Faculty Publications
The fields of machine learning (ML) and cognitive science have developed complementary approaches to computationally modeling human behavior. ML's primary concern is maximizing prediction accuracy; cognitive science's primary concern is explaining the underlying mechanisms. Cross-talk between these disciplines is limited, likely because the tasks and goals usually differ. The domain of e-learning and knowledge acquisition constitutes a fruitful intersection for the two fields’ methodologies to be integrated because accurately tracking learning and forgetting over time and predicting future performance based on learning histories are central to developing effective, personalized learning tools. Here, we show how a state-of-the-art ML model can …
Moving On Up: Vertical Distribution Shifts In Rocky Reef Fish Species During Climate-Driven Decline In Dissolved Oxygen From 1995 To 2009, Erin L. Meyer-Gutbrod, Li Kui, Mary Nishimoto, Linda Snook, Milton Love
Moving On Up: Vertical Distribution Shifts In Rocky Reef Fish Species During Climate-Driven Decline In Dissolved Oxygen From 1995 To 2009, Erin L. Meyer-Gutbrod, Li Kui, Mary Nishimoto, Linda Snook, Milton Love
Faculty Publications
Anthropogenic climate change has resulted in warming temperatures and reduced oxygen concentrations in the global oceans. Much remains unknown on the impacts of reduced oxygen concentrations on the biology and distribution of marine fishes. In the Southern California Channel Islands, visual fish surveys were conducted frequently in a manned submersible at three rocky reefs between 1995 and 2009. This area is characterized by a steep bathymetric gradient, with the surveyed sites Anacapa Passage, Footprint and Piggy Bank corresponding to depths near 50, 150 and 300 m. Poisson models were developed for each fish species observed consistently in this network of …
Epidemiology Of Type 2 Diabetes In The Middle East And North Africa: Challenges And Call For Action, Imad El-Kebbi, Nayda Bidikian, Layal Hneiny, Mona Nasrallah
Epidemiology Of Type 2 Diabetes In The Middle East And North Africa: Challenges And Call For Action, Imad El-Kebbi, Nayda Bidikian, Layal Hneiny, Mona Nasrallah
Faculty Publications
Type 2 diabetes continues to be a serious and highly prevalent public health problem worldwide. In 2019, the highest prevalence of diabetes in the world at 12.2%, with its associated morbidity and mortality, was found in the Middle East and North Africa region. In addition to a genetic predisposition in its population, evidence suggests that obesity, physical inactivity, urbanization, and poor nutritional habits have contributed to the high prevalence of diabetes and prediabetes in the region. These risk factors have also led to an earlier onset of type 2 diabetes among children and adolescents, negatively affecting the productive years of …
Ligo's Quantum Response To Squeezed States, L. Mcculler, S. E. Dwyer, A. C. Green, Haocun Yu, K. Kuns, L. Barsotti, C. D. Blair, D. D. Brown, A. Effler, M. Evans, A. Fernandez-Galiana, P. Fritschel, V. V. Frolov, N. Kijbunchoo, G. L. Mansell, F. Matichard, N. Mavalvala, D. E. Mcclelland, T. Mcrae, A. Mullavey, D. Sigg, B. J.J. Slagmolen, M. Tse, T. Vo, R. L. Ward, C. Whittle, R. Abbott, C. Adams, R. X. Adhikari, A. Ananyeva, S. Appert, K. Arai, J. S. Areeda
Ligo's Quantum Response To Squeezed States, L. Mcculler, S. E. Dwyer, A. C. Green, Haocun Yu, K. Kuns, L. Barsotti, C. D. Blair, D. D. Brown, A. Effler, M. Evans, A. Fernandez-Galiana, P. Fritschel, V. V. Frolov, N. Kijbunchoo, G. L. Mansell, F. Matichard, N. Mavalvala, D. E. Mcclelland, T. Mcrae, A. Mullavey, D. Sigg, B. J.J. Slagmolen, M. Tse, T. Vo, R. L. Ward, C. Whittle, R. Abbott, C. Adams, R. X. Adhikari, A. Ananyeva, S. Appert, K. Arai, J. S. Areeda
Faculty Publications
Gravitational wave interferometers achieve their profound sensitivity by combining a Michelson interferometer with optical cavities, suspended masses, and now, squeezed quantum states of light. These states modify the measurement process of the LIGO, VIRGO and GEO600 interferometers to reduce the quantum noise that masks astrophysical signals; thus, improvements to squeezing are essential to further expand our gravitational view of the Universe. Further reducing quantum noise will require both lowering decoherence from losses as well more sophisticated manipulations to counter the quantum back-action from radiation pressure. Both tasks require fully understanding the physical interactions between squeezed light and the many components …
Isotopic Fingerprints Of Mountain Uplift And Global Cooling In Paleoclimatic And Paleoecological Records From The Northern Tibetan Plateau, Mingqiu Hou, Guangsheng Zhuang, Minghao Wu
Isotopic Fingerprints Of Mountain Uplift And Global Cooling In Paleoclimatic And Paleoecological Records From The Northern Tibetan Plateau, Mingqiu Hou, Guangsheng Zhuang, Minghao Wu
Faculty Publications
Post-middle Miocene changes in climate and ecology in the northern Tibetan Plateau have been attributed to tectonic uplift and global climate change. However, the relative roles of tectonism and global climate change have been a long-standing debate. To untangle the complex influences of global climate change versus the tectonism on regional climate and ecology in the northern Tibetan Plateau, we studied carbon isotopes (δ13Cwax) of leaf wax long-chain n-alkanes and carbon (δ13C) and oxygen isotopes (δ18O) of carbonates from three stratigraphic successions (ca. 16 Ma to 2 Ma) in the Hexi Corridor (foreland basin) …
Numerical Method For The Equilibrium Configurations Of A Maier-Saupe Bulk Potential In A Q-Tensor Model Of An Anisotropic Nematic Liquid Crystal, Cody D. Schimming, Jorge Viñals, Shawn W. Walker
Numerical Method For The Equilibrium Configurations Of A Maier-Saupe Bulk Potential In A Q-Tensor Model Of An Anisotropic Nematic Liquid Crystal, Cody D. Schimming, Jorge Viñals, Shawn W. Walker
Faculty Publications
We present a numerical method, based on a tensor order parameter description of a nematic phase, that allows fully anisotropic elasticity. Our method thus extends the Landau-de Gennes Q-tensor theory to anisotropic phases. A microscopic model of the nematogen is introduced (the Maier-Saupe potential in the case discussed in this paper), combined with a constraint on eigenvalue bounds of Q. This ensures a physically valid order parameter Q (i.e., the eigenvalue bounds are maintained), while allowing for more general gradient energy densities that can include cubic nonlinearities, and therefore elastic anisotropy. We demonstrate the method in two specific two dimensional …
Pre-Exposure Prophylaxis (Prep) Uptake Among Black Men Who Have Sex With Men (Bmsm) In The Southern U.S, Oluwafemi Adeagbo, Sayward Elizabeth Harrison, Shan Qiao Ph.D., Xiaoming Li Ph.D.
Pre-Exposure Prophylaxis (Prep) Uptake Among Black Men Who Have Sex With Men (Bmsm) In The Southern U.S, Oluwafemi Adeagbo, Sayward Elizabeth Harrison, Shan Qiao Ph.D., Xiaoming Li Ph.D.
Faculty Publications
Black men who have sex with men (BMSM) living in the United States (U.S.) South are disproportionately affected by HIV and experience significant disparities in HIV incidence, access to HIV care, and prevention across ages and socio-economic statuses. The aim of this commentary is to critically review current literature on the state of PrEP use among BMSM in the U.S. South, including identifying barriers and facilitators to PrEP use in order to inform intervention development. Extant literature shows that despite the documented benefits of PrEP as an effective HIV-prevention method, its uptake among BMSM is limited across the U.S. South. …
Drone-Based Vibration Monitoring And Assessment Of Structures, Sabrina Carroll, Joud Satme, Shadhan Alkharusi, Nikolaos Vitzilaios, Austin Downey, Dimitris Rizos
Drone-Based Vibration Monitoring And Assessment Of Structures, Sabrina Carroll, Joud Satme, Shadhan Alkharusi, Nikolaos Vitzilaios, Austin Downey, Dimitris Rizos
Faculty Publications
This paper presents a novel method of procuring and processing data for the assessment of civil structures via vibration monitoring. This includes the development of a custom sensor package designed to minimize the size/weight while being fully self-sufficient (i.e., not relying on external power). The developed package is delivered to the structure utilizing a customized Unmanned Aircraft System (UAS), otherwise known as a drone. The sensor package features an electropermanent magnet for securing it to the civil structure while a second magnet is used to secure the package to the drone during flight. The novel B-Spline Impulse Response Function (BIRF) …
Pre-Exposure Prophylaxis (Prep) Uptake Among Black Men Who Have Sex With Men (Bmsm) In The Southern U.S., Oluwafemi Atanda Adeagbo, Sayward Harrison, Shan Qiao, Xiaoming Li
Pre-Exposure Prophylaxis (Prep) Uptake Among Black Men Who Have Sex With Men (Bmsm) In The Southern U.S., Oluwafemi Atanda Adeagbo, Sayward Harrison, Shan Qiao, Xiaoming Li
Faculty Publications
Black men who have sex with men (BMSM) living in the United States (U.S.) South are disproportionately affected by HIV and experience significant disparities in HIV incidence, access to HIV care, and prevention across ages and socio-economic statuses. The aim of this commentary is to critically review current literature on the state of PrEP use among BMSM in the U.S. South, including identifying barriers and facilitators to PrEP use in order to inform intervention development. Extant literature shows that despite the documented benefits of PrEP as an effective HIV-prevention method, its uptake among BMSM is limited across the U.S. South. …
Trigger Warnings In Psychology Classrooms?: Comparing Sexes From A Diverse Religious Institution, Jasmine Collard, Herbert W. Helm Jr
Trigger Warnings In Psychology Classrooms?: Comparing Sexes From A Diverse Religious Institution, Jasmine Collard, Herbert W. Helm Jr
Faculty Publications
Sensitive, oftentimes unsettling topics are inherent, especially in psychology education (Boysen et al., 2018). Prior notification - also known as trigger warnings - to help students prepare for, or avoid, possibly disturbing, upcoming education topics (Boysen, 2017, p. 164) are being pushed for by college students on potentially disturbing content. We previously replication Guy A. Boysen’s “Trigger Warnings in psychology Classes: What Do Students Think?” and found that students from a diverse, religious institution had few significant differences, but, in general, the results from the two data sets were quite similar (Kim et al, 2020). To expand on this knowledge, …
Bamboo-Based Biofoam Adsorbents For The Adsorption Of Cationic Pollutants In Wastewater: Methylene Blue And Cu(Ii), Chongpeng Qiu, Xuelun Zhang, You Zhang, Qi Tang, Zihui Yuan, Cornelis F. De Hoop, Jiwen Cao, Shilin Hao, Ting Liang, Feng Li, Xingyan Huang
Bamboo-Based Biofoam Adsorbents For The Adsorption Of Cationic Pollutants In Wastewater: Methylene Blue And Cu(Ii), Chongpeng Qiu, Xuelun Zhang, You Zhang, Qi Tang, Zihui Yuan, Cornelis F. De Hoop, Jiwen Cao, Shilin Hao, Ting Liang, Feng Li, Xingyan Huang
Faculty Publications
Human health is being threatened by cationic pollutants in wastewater, for example, methylene blue (MB) and Cu(II). Our research team successfully fabricated biofoam adsorbents from recycled bamboo waste that removed cationic pollutants via introducing bamboo fiber sources, i.e., bamboo fiber, bamboo α-cellulose fiber, and bamboo nanocellulose fiber, into a polyurethane (PU) foam matrix. The biofoam adsorbent with 1 g of nanocellulose (PUN1) presented high removal efficiencies for MB (95.52%) and Cu(II) (100%) in low cationic pollutant concentration aqueous solutions. The biofoam adsorbent with 1 g of bamboo fiber (PUB1) also displayed excellent removal efficiency for MB (98.61%) at pH 11. …
Temporal Geospatial Analysis Of Covid-19 Pre-Infection Determinants Of Risk In South Carolina, Tianchu Lyu, Nicole Hair, Nicholas Yell, Zhenlong Li, Shan Qiao Ph.D., Xiaoming Li Ph.D.
Temporal Geospatial Analysis Of Covid-19 Pre-Infection Determinants Of Risk In South Carolina, Tianchu Lyu, Nicole Hair, Nicholas Yell, Zhenlong Li, Shan Qiao Ph.D., Xiaoming Li Ph.D.
Faculty Publications
Disparities and their geospatial patterns exist in morbidity and mortality of COVID-19 patients. When it comes to the infection rate, there is a dearth of research with respect to the disparity structure, its geospatial characteristics, and the pre-infection determinants of risk (PIDRs). This work aimed to assess the temporal-geospatial associations between PIDRs and COVID-19 infection at the county level in South Carolina. We used the spatial error model (SEM), spatial lag model (SLM), and conditional autoregressive model (CAR) as global models and the geographically weighted regression model (GWR) as a local model. The data were retrieved from multiple sources including …