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An Investigation Of Student Understanding And Acceptance Of Evolution, Rachel Leigh Salter Harding

Biological Sciences

Evolution is central to biology education and yet, it is often one of the most misunderstood and controversial topics that biology educators must teach. Research spanning the last four decades has shown that students continue to struggle, even with direct instruction, to understand the process of evolution by natural selection. In my first chapter, I found that students enrolled in non-majors geology course did not increase in their understanding of evolution, even after instruction. This followed similar findings from research occurring over 30 years in the past. Discipline-based education researchers have theorized that students’ persistent difficulties understanding evolution may stem …

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Exploring Spatial Patterns Of Virginia Tornadoes Using Kernel Density And Space-Time Cube Analysis (1960-2019), Michael J. Allen, Thomas R. Allen, Christopher Davis, George Mcleod, Wolfgang Kainz (Ed.), Dean Kyne (Ed.)

Political Science & Geography Faculty Publications

This study evaluates the spatial-temporal patterns in Virginia tornadoes using the National Weather Service Storm Prediction Center’s Severe Weather GIS (SVRGIS) database. In addition to descriptive statistics, the analysis employs Kernel Density Estimation for spatial pattern analysis and space-time cubes to visualize the spatiotemporal frequency of tornadoes and potential trends. Most of the 726 tornadoes between 1960–2019 occurred in Eastern Virginia, along the Piedmont and Coastal Plain. Consistent with other literature, both the number of tornadoes and the tornado days have increased in Virginia. While 80% of the tornadoes occurred during the warm season, tornadoes did occur during each month …

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Recent Trends In Heat-Related Mortality In The United States: An Update Through 2018, Scott C. Sheridan, P. Grady Dixon, Adam J. Kalkstein, Michael J. Allen

Political Science & Geography Faculty Publications

Much research has shown a general decrease in the negative health response to extreme heat events in recent decades. With a society that is growing older, and a climate that is warming, whether this trend can continue is an open question. Using eight additional years of mortality data, we extend our previous research to explore trends in heat-related mortality across the United States. For the period 1975–2018, we examined the mortality associated with extreme-heat-event days across the 107 largest metropolitan areas. Mortality response was assessed over a cumulative 10-day lag period following events that were defined using thresholds of the …

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A Global Ecological Classification Of Coastal Segment Units To Complement Marine Biodiversity Observation Network Assessments, Roger Sayre, Kevin Butler, Keith Van Graafeiland, Sean Breyer, Dawn Wright, Charlie Frye, Deniz Karagulle, Madeline Martin, Jill Cress, Tom Allen, Rebecca J. Allee, Rost Parsons, Bjorn Nyberg, Mark J. Costello, Peter Harris, Frank E. Muller-Karger

Political Science & Geography Faculty Publications

A new data layer provides Coastal and Marine Ecological Classification Standard (CMECS) labels for global coastal segments at 1 km or shorter resolution. These characteristics are summarized for six US Marine Biodiversity Observation Network (MBON) sites and one MBON Pole to Pole of the Americas site in Argentina. The global coastlines CMECS classifications were produced from a partitioning of a 30 m Landsat-derived shoreline vector that was segmented into 4 million 1 km or shorter segments. Each segment was attributed with values from 10 variables that represent the ecological settings in which the coastline occurs, including properties of the adjacent …

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Nonprofit Capacity To Manage Hurricane-Pandemic Threat: Local And National Perspectives On Resilience During Covid-19, Nicole S. Hutton, Steven W. Mumford, Marina Saitgalina, Juita-Elena (Wie) Yusuf, Joshua G. Behr, Rafael Diaz, John J. Kiefer

Political Science & Geography Faculty Publications

This paper examines nonprofits' capacity for responding to simultaneous hurricane-pandemic threat, addressing: (1) strategies nonprofits use to deliver services during the COVID-19 pandemic, and (2) how natural hazards may affect nonprofit roles in emergency service delivery during a pandemic. Data come from a survey of New Orleans-based nonprofits demonstrating effects of pandemic on local nonprofit service delivery, and workshops with U.S. coastal community stakeholders exploring expectations for nonprofit roles in emergency operations nationwide. Nonprofits have applied resilient strategies including virtual operations, staff reductions, and funding diversification, but vulnerabilities remain. Findings guide a research agenda for building nonprofit and community resilience.

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Anticipating And Adapting To The Future Impacts Of Climate Change On The Health, Security And Welfare Of Low Elevation Coastal Zone (Lecz) Communities In Southeastern Usa, Thomas Allen, Joshua Behr, Anamaria Bukvic, Ryan S.D. Calder, Kiki Caruson, Charles Connor, Christopher D'Elia, David Dismukes, Robin Ersing, Rima Franklin, Jesse Goldstein, Jonathon Goodall, Scott Hemmerling, Jennifer Irish, Steven Lazarus, Derek Loftis, Mark Luther, Leigh Mccallister, Karen Mcglathery, Molly Mitchell, William Moore, Charles Reid Nichols, Karinna Nunez, Matthew Reidenbach, Julie Shortridge, Robert Weisberg, Robert Weiss, Lynn Donelson Wright, Meng Xia, Kehui Xu, Donald Young, Gary Zarillo, Julie C. Zinnert

Political Science & Geography Faculty Publications

Low elevation coastal zones (LECZ) are extensive throughout the southeastern United States. LECZ communities are threatened by inundation from sea level rise, storm surge, wetland degradation, land subsidence, and hydrological flooding. Communication among scientists, stakeholders, policy makers and minority and poor residents must improve. We must predict processes spanning the ecological, physical, social, and health sciences. Communities need to address linkages of (1) human and socioeconomic vulnerabilities; (2) public health and safety; (3) economic concerns; (4) land loss; (5) wetland threats; and (6) coastal inundation. Essential capabilities must include a network to assemble and distribute data and model code to …

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Re-Spatializing Gangs: An Exponential Random Graph Model Of Twitter Data To Analyze The Geospatial Distribution Of Gang Member Connections, Ryan J. Roberts

Political Science & Geography Faculty Publications

Gang studies often use location-based approaches to explain gang members’ interconnectedness. Although this perspective remains consistent with the proximity principle that the smaller the geographic space, the greater the likelihood of observing connections between individuals, location-based studies limit our understanding of gang member connections to narrowly defined geographic spaces at specific points in time. The advent of social media has re-spatialized gang member interconnectedness to unbounded geographic spaces, where the preservation of online activity can extend indefinitely. Despite having an online presence, most research examining the digital footprint of gangs tends to be descriptive. This study collects Twitter data to …

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Building Envelope Containing Phase Change Materials For Energy-Efficient Buildings, Mingli Li

Civil and Environmental Engineering

Energy consumption in the building sector has increased dramatically over the past two decades. The incorporation of phase change materials (PCMs) into building envelopes is considered as effective thermal energy storage to improve building thermal performance and reduce space heating/cooling load. Despite significant efforts in PCMs technologies and their application to buildings, how to select proper PCMs for buildings and maximize the activation of their latent heat to effectively improve building energy efficiency still post great challenges. The lack of systematic and comprehensive studies in these gaps hinders their broad applications in the building sector. This study aims to develop …

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X-Linked Serotonin 2c Receptor Is Associated With A Non-Canonical Pathway For Sudden Unexpected Death In Epilepsy, Cory A Massey, Samantha J Thompson, Ryan W Ostrom, Janice Drabek, Olafur A Sveinsson, Torbjörn Tomson, Elisabeth A Haas, Othon J Mena, Alica M Goldman, Jeffrey L Noebels

Faculty, Staff and Students Publications

Sudden Unexpected Death in Epilepsy is a leading cause of epilepsy-related mortality, and the analysis of mouse Sudden Unexpected Death in Epilepsy models is steadily revealing a spectrum of inherited risk phenotypes based on distinct genetic mechanisms. Serotonin (5-HT) signalling enhances post-ictal cardiorespiratory drive and, when elevated in the brain, reduces death following evoked audiogenic brainstem seizures in inbred mouse models. However, no gene in this pathway has yet been linked to a spontaneous epilepsy phenotype, the defining criterion of Sudden Unexpected Death in Epilepsy. Most monogenic models of Sudden Unexpected Death in Epilepsy invoke a failure of inhibitory synaptic …

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Full-Text Articles in Entire DC Network

An Investigation Of Student Understanding And Acceptance Of Evolution, Rachel Leigh Salter Harding

Biological Sciences

Exploring Spatial Patterns Of Virginia Tornadoes Using Kernel Density And Space-Time Cube Analysis (1960-2019), Michael J. Allen, Thomas R. Allen, Christopher Davis, George Mcleod, Wolfgang Kainz (Ed.), Dean Kyne (Ed.)

Political Science & Geography Faculty Publications

Recent Trends In Heat-Related Mortality In The United States: An Update Through 2018, Scott C. Sheridan, P. Grady Dixon, Adam J. Kalkstein, Michael J. Allen

Political Science & Geography Faculty Publications

Political Science & Geography Faculty Publications

Nonprofit Capacity To Manage Hurricane-Pandemic Threat: Local And National Perspectives On Resilience During Covid-19, Nicole S. Hutton, Steven W. Mumford, Marina Saitgalina, Juita-Elena (Wie) Yusuf, Joshua G. Behr, Rafael Diaz, John J. Kiefer

Political Science & Geography Faculty Publications

Political Science & Geography Faculty Publications

Re-Spatializing Gangs: An Exponential Random Graph Model Of Twitter Data To Analyze The Geospatial Distribution Of Gang Member Connections, Ryan J. Roberts

Political Science & Geography Faculty Publications

Building Envelope Containing Phase Change Materials For Energy-Efficient Buildings, Mingli Li

Civil and Environmental Engineering

X-Linked Serotonin 2c Receptor Is Associated With A Non-Canonical Pathway For Sudden Unexpected Death In Epilepsy, Cory A Massey, Samantha J Thompson, Ryan W Ostrom, Janice Drabek, Olafur A Sveinsson, Torbjörn Tomson, Elisabeth A Haas, Othon J Mena, Alica M Goldman, Jeffrey L Noebels

Faculty, Staff and Students Publications