29 Works

Consumption of Added Sugars by Rural Residents of Southwest Virginia

Maryam Yuhas, Valisa Hedrick & Jamie Zoellner
Introduction: Nationally, rural residents have high consumption of added sugars, yet the top sources have not been explored. Characterizing added-sugar intake in high sugar-sweetened beverage (SSB) consumers in rural areas is an important step to help inform interventions and policies. Purpose: The objective of this study was to explore the top food and beverage sources of added sugar and to examine variations by sociodemographic characteristics. Methods: This cross-sectional study analyzed data from a randomized-controlled trial...

Comparing the individual and combined effects of ant attendance and wing formation on aphid body size and reproduction

Ph.D. Nelson & Kailen A. Mooney
Species employ multiple strategies to deal with stressful environments, but these strategies often incur costs. Aphids frequently utilize multiple predator avoidance strategies, including attracting mutualist ants for protection and dispersing by producing winged forms. While both strategies can be physiologically costly, the magnitudes of these costs have not been previously compared. In this study, we experimentally manipulated ant attendance in the field and measured the individual and interactive effects of ant attendance and wing formation...

Getting Started on OSF

Eric Olson, Nicole Pfeiffer, Mark Call & Daniel Steger
So you've made an OSF account — awesome! Now you’re ready to get started, but what should you do first? This project has resources, templates, and demonstrated practices to help you begin your OSF journey. Still have questions? Contact support@osf.io to discuss more OSF features.

Micro-CT scans of Mt. Simon sandstone at residual conditions used for contact angle measurements and analyzing the influence of clay regions

Laura Dalton, Dustin Crandall, James McClure, Min Fang & Ryan Armstrong
Micro-computed tomography tiff stacks of a Mt. Simon core at residual conditions. The core is from a depth of 6,926 ft, the sub-sample tested is 0.25 inch diameter by 1 inch length. This data was used to complete contact angle measurements and analyze the influence of clay-rich regions in the pore space on residual trapping efficiency.

Assessing Microplastic Pollution in Four Mile Run, an Urban Stream in Northern Virginia

Kurt Moser, Tessa Naughton-Rockwell, Louisa Wang, Ethan Litmans & Amanda Manoogian
Microplastics are pollutants of concern in waterways and oceans for their persistence and impact on aquatic life and food webs. This study demonstrates a low-cost land-based sampling method to assess the extent of microplastic pollution found in Four Mile Run, an urban stream in Northern Virginia. Microplastic particle counts in environmental and treated wastewater ranged from 0.01-0.24 particles L-1 (mean 0.08 particles L-1) and from 2 to 446 µg L-1 (mean 70 µg L-1), with...

Longitudinal white-matter abnormalities in sports-related concussion: a diffusion MRI study of the NCAA-DoD CARE Consortium

Yu-Chien Wu, Jaroslaw Harezlak, Nahla Elsaid, Zikai Lin, Qiuting Wen, Sourajit Mustafi, Larry Riggen, Kevin Koch, Andrew Nencka, Timothy Meier, Andrew Mayer, Yang Wang, Christopher Giza, John DiFiori, Kevin Guskiewicz, Jason Mihalik, Stephen LaConte, Stefan Duma, Steven Broglio, Andrew Saykin, Michael McCrea & Thomas McAllister
Objective To study longitudinal recovery trajectories of white-matter after sports-related concussion (SRC), we performed diffusion tensor imaging (DTI) on collegiate athletes who sustained SRC. Methods Collegiate athletes (n=219, 82 concussed athletes, 68 contact-sport controls, and 69 non-contact-sport controls) were included from the Concussion Assessment, Research and Education (CARE) Consortium. The participants completed clinical assessments and DTI at four time points: 24-48-hours post-injury, asymptomatic state, seven days following return-to-play, and six-months post-injury. Tract-based spatial statistics were...

Data from: Piping Plover population increase after Hurricane Sandy mediated by immigration and reproductive output

Samantha Robinson, Daniel Gibson, Thomas Riecke, James Fraser, Henrietta Bellman, Audrey DeRose-Wilson, Sarah Karpanty & Katie Walker
Evaluating population-level responses to conservation action following large-scale disturbance can improve the efficacy of future habitat conservation measures. In October 2012, Hurricane Sandy storm surges cleared vegetation and opened inlets through the barrier islands, Fire Island and Westhampton Island, New York, creating Piping Plover (Charadrius melodus) habitat. Storm effects prompted an island-wide stabilization project, which had the potential to negatively affect novel Piping Plover habitat. Certain sections of Fire Island were designed to create and/or...

Sex linkage of the skeletal muscle sodium channel gene (SCN4A) explains apparent deviations from Hardy–Weinberg equilibrium of tetrodotoxin-resistance alleles in garter snakes (Thamnophis sirtalis)

Kerry Gendreau, Michael Hague, Chris Feldman, , & Joel McGlothlin
The arms race between tetrodotoxin-bearing Pacific newts (Taricha) and their garter snake predators (Thamnophis) in western North America has become a classic example of coevolution, shedding light on predator-prey dynamics, the molecular basis of adaptation, and patterns of convergent evolution. Newts are defended by tetrodotoxin (TTX), a neurotoxin that binds to voltage-gated sodium channels (Nav proteins), arresting electrical activity in nerves and muscles and paralyzing would-be predators. However, populations of the common garter snake (T....

Scaling between macro- to microscale climatic data reveals strong phylogenetic inertia in niche evolution in plethodontid salamanders

Vincent Farallo, Martha Muñoz, Josef Uyeda & Donald Miles
Macroclimatic niches are indirect and potentially inadequate predictors of the realized environmental conditions that many species experience. Consequently, analyses of niche evolution based on macroclimatic data alone may incompletely represent the evolutionary dynamics of species niches. Yet, understanding how an organisms’ climatic (Grinnellian) niche responds to changing macroclimatic conditions is of vital importance for predicting their potential response to global change. In this study, we integrate microclimatic and macroclimatic data across 26 species of plethodontid...

Ambient temperature and female body condition are related to night incubation behavior in wood ducks (Aix sponsa)

Alexander Grimaudo, Sydney Hope, Sarah DuRant, Robert Kennamer, John Hallagan & William Hopkins
For many animals, parental care behavior is an important aspect of their life history that affects both parents and offspring. In birds, one of the most important parental care behaviors is incubation, which is costly to the parent but directly influences embryonic development and fitness of offspring. Some birds exhibit the intriguing behavior of partially incubating their eggs prior to clutch completion for only a portion of each day. This partial incubation is characterized by...

OSF Institutions

Eric Olson, Nicole Pfeiffer, Daniel Steger & Gretchen Gueguen
OSF Institutions enhances transparency and increases the visibility of research outputs, accelerating discovery and reuse. The Center for Open Science partners with institutions to provide infrastructure and tools to help researchers manage, collaborate and share their work, provide training and guide resources to enable researchers in transparent, open, and reproducible workflows, and collaborates with institutional staff to overcome challenges and showcase the open and reproducible outputs contributed by their research community. You can focus your...

Escape from natural enemies depends on the enemies, the invader, and competition

Jacob Lucero, Nafiseh Arab, Sebastian Meyer, Robert Pal, Rebecca A. Fletcher, Dávid Nagy, Ragan M. Callaway & Wolfgang Weisser
The enemy release hypothesis (ERH) attributes the success of some exotic plant species to reduced top-down effects of natural enemies in the non-native range relative to the native range. Many studies have tested this idea, but very few have considered the simultaneous effects of multiple kinds of enemies on more than one invasive species in both the native and non-native ranges. Here, we examined the effects of two important groups of natural enemies – insect...

Transmission of West Nile and five other temperate mosquito-borne viruses peaks at temperatures between 23-26ºC

Marta Shocket, Anna Verwillow, Mailo Numazu, Hani Slamani, Jeremy Cohen, Fadoua El Moustaid, Jason Rohr, Leah Johnson & Erin Mordecai
The temperature-dependence of many important mosquito-borne diseases has never been quantified. These relationships are critical for understanding current distributions and predicting future shifts from climate change. We used trait-based models to characterize temperature-dependent transmission of 10 vector–pathogen pairs of mosquitoes (Culex pipiens, Cx. quinquefascsiatus, Cx. tarsalis, and others) and viruses (West Nile, Eastern and Western Equine Encephalitis, St. Louis Encephalitis, Sindbis, and Rift Valley Fever viruses), most with substantial transmission in temperate regions. Transmission is...

Data from: Age influences the thermal suitability of Plasmodium falciparum transmission in the Asian malaria vector Anopheles stephensi

Courtney Murdock, Kerri Miazgowicz, Erin Mordecai, Sadie Ryan, Richard Hall, Harry Owen, Temitayo Adanlawo, Kavya Balaji, Marta Shocket, Oswaldo Villena, Leah Johnson, Blanka Tesla, Leah Demakovsky, Matt Bonds, Calistus Ngonghala & Melinda Brindley
Models predicting disease transmission are vital tools for long-term planning of malaria reduction efforts, particularly for mitigating impacts of climate change. We compared temperature-dependent malaria transmission models when mosquito life history traits were estimated from a truncated portion of the lifespan (a common practice) to traits measured across the full lifespan. We conducted an experiment on adult female Anopheles stephensi, the Asian urban malaria mosquito, to generate daily per capita values for mortality, egg production,...

The Effects of Sorority Recruitment on Self-Esteem

Lauren Chapman, Joan B. Hirt & Nicklaus R. Spruill

Changing Trends in the Undergraduate Fraternity/Sorority Experience: An Evaluative and Analytical Literature Review

Amy B. Perkins, J. Daniel Zimmerman & Steven M. Janosik

Mt. Simon Sandstone with Mineral Map

James McClure, Ryan Armstrong, Ming Fan, Dustin Crandall & Laura Dalton

The 2016 Bernie Sanders Campaign

Judson C. Abraham
Some socialists criticize Bernie Sanders’s 2016 presidential campaign, taking issue with the senator’s nationalism, vague presentation of socialism and revolution, and seeming preoccupation with class at the expense of attention to racism. This article draws from Ernesto Laclau and Chantal Mouffe’s theorization of populism to depict Sanders’s campaign as a legitimately socialist project. Laclau and Mouffe claim that left populism may evolve into socialism under certain conditions. One may expect Sanders’s populism to empower previously...

Bentheimer Sandstone for Analyzing Wetting Phenomena

Chenhao Sun, James McClure, Peyman Mostaghimi, Anna Herring, Steffen Berg & Ryan Armstrong
The micro-CT image data of Bentheimer sandstone used in characterizing its wettability. The primary drainage and imbibition experiments were performed by using air and brine. The images were acquired at irreducible air saturation Sw=94%. This dataset is used to characterize wetting in complex subsurface multiphase systems by using principles of topology and integral geometry.

Data from: Human disturbance and the activity patterns and temporal overlap of tapirs and jaguars in reserves of NW Belize.

Victoria D Monette, Marcella J Kelly & Richard Buchholz
Human disturbance from tourism and other non-consumptive activities in protected areas may be stressful to wildlife. Animals may move away in space or time to avoid human interaction. For species of particular conservation concern, such as Baird’s tapirs (Tapirus bairdii) and jaguars (Panthera onca), a better understanding of how they respond to different levels and types of disturbance is needed in order to manage human visitation to parks in ways that minimize negative outcomes for...

Demographic characteristics, site and phylogenetic distribution of dogs with appendicular osteosarcoma: 744 dogs (2000-2015)

Laura Selmic, Marejka Shaevitz, Joanne Tuohy, Laura Garrett & Audrey Ruple
Objective: To report demographic characteristics of a contemporary population of dogs with appendicular osteosarcoma and assess the relationship between demographic characteristics, site distribution, and phylogenetic breed clusters. Design: Retrospective case series. Methods: A search of the Veterinary Medical Database was performed for dogs with appendicular osteosarcoma as a new diagnosis. Entries were reviewed for the sex, neuter status, age at diagnosis, breed, affected limb, and tumor location. The reported breed for purebred dogs was used...

Datasets used to support the work presented in: Beringer, C.J., K.W. Goyne, R.N. Lerch, E.B. Webb, and D. Mengel. 2020: Clothianidin decomposition in Missouri wetland soils. J. Environ. Qual. JEQ-2020-05-0167-TR

C. J. Beringer, K. W. Goyne, Robert Lerch, E. B. Webb & D. Mengel
Neonicotinoid pesticides can persist in soils for extended time periods; however, they also have a high potential to contaminate ground and surface waters. Studies have reported negative effects associated with neonicotinoids and non-target taxa, including aquatic invertebrates, pollinating insect species, and insectivorous birds. This study evaluated factors associated with clothianidin (1-[(2-chloro-1,3-thiazol-5-yl) methyl]-3-methyl-2-nitroguanidine, CTN) degradation and sorption in Missouri wetland soils to assess the potential for wetland soils to mitigate potential environmental risks associated with neonicotinoids....

Data from: Shark movement strategies influence poaching risk and can guide enforcement decisions in a large, remote Marine Protected Area

David Jacoby, Francesco Ferretti, Robin Freeman, Aaron Carlisle, Taylor Chapple, David Curnick, Jonathan Dale, Robert Schallert, David Tickler & Barbara Block
Large, remote marine protected areas (MPAs) containing both reef and pelagic habitats, have been shown to offer considerable refuge to populations of reef-associated sharks. Many large MPAs are, however, impacted by illegal fishing activity conducted by unlicensed vessels. While enforcement of these reserves is often expensive, it would likely benefit from the integration of ecological data on the mobile animals they are designed to protect. Consequently, shark populations in some protected areas continue to decline,...

Learning Communities in Fraternity/Sorority Housing

Sean S. Blackburn & Steven M. Janosik

Establishing Black Identity at a Predominantly White Institution: The Influence of a Hybrid Pledge/Intake Process Utilizing Nguzo Saba Principles

Katherine D. Llyod

Registration Year

  • 2020
    29

Resource Types

  • Dataset
    18
  • Text
    11

Affiliations

  • Virginia Tech
    29
  • Stanford University
    3
  • George Mason University
    3
  • UNSW Sydney
    3
  • University of California Los Angeles
    3
  • Center For Open Science
    3
  • University of Montana
    2
  • University of Georgia
    2
  • University of Virginia
    2
  • University of Nevada Reno
    2