74 Works

COVID-19 Cross Country Public Opinion

Leaf Van Boven, Alexandra Flores, Jennifer Cole, Marcus Mayorga, Beatriz Pereira, Eric Pedersen, Marrissa Grant, Sarah Coffin & Jairo Ramos
Large scale survey of public opinion on COVID-19 policy, prosocial intentions, and legitimacy of U.S. 2020 Presidential Election.

TSIS-1 SIM Recalibration of the SORCE-SIM Absolute Irradiance Scale

James Mothersbaugh, Jerald Harder, Steven Penton & Stèphane Bèland
This TSIS-Adjusted Value (TAV) SORCE-SIM irradiance calibration provides a TSIS1-SIM/SORCE-SIM ratio on the SORCE-SIM wavelength scale. This scale varies in spectral resolution from 1-34 nm over the spectral range. Irradiances are reported at a mean solar distance of 1 AU and zero relative line-of-sight velocity with respect to the Sun. The SORCE TSIS-1 Irradiance Calibration Ratio (STICR) is tabulated is the attached datasets, containingn the wavelength, number of spectra combined at this wavelength, SORCE mean...

PSP FIELDS Digital Fields Board (DFB) AC-coupled Differential Voltage, V1-V2 Antennae, Dipole Mode, Bandpass filtered, High Gain, Sensor coordinates, Level 2 (L2), 0.873813 s Data

Stuart D. Bale, David M. Malaspina, Alexandros Chasapis, Marc Pulupa, Timothy Quinn & Peter Schroeder
PSP FIELDS Digital Fields Board, DFB, dV12 data: The DFB is the low frequency, less than 75 kHz, component of the FIELDS experiment on the Parker Solar Probe spacecraft. DFB AC bandpass data consist of peak and average values of the absolute value of bandpassed time series waveform data over a time interval equal to the reporting cadence. The AC bandpass data have the peak response frequency of each bin reported in the metadata. The...

PSP FIELDS Digital Fields Board (DFB) AC-coupled Searchcoil Magnetometer, SCM, Bandpass filtered, Medium Frequency, High Gain, u-component, Sensor coordinates, Level 2 (L2), 0.873813 s Data

Stuart D. Bale, Thierry Dudok de Wit, David M. Malaspina, Alexandros Chasapis, Marc Pulupa, Timothy Quinn & Peter Schroeder
PSP FIELDS Digital Fields Board, DFB, SCMumfhg data. The DFB is the low frequency, less than 75 kHz, component of the FIELDS experiment on the Parker Solar Probe spacecraft. DFB AC bandpass data consist of peak and average values of the absolute value of bandpassed time series waveform data over a time interval equal to the reporting cadence. The AC bandpass data have the peak response frequency of each bin reported in the metadata. The...

Taylor Valley Stream Hydrology TLS B-421 PS23 SV01

Dianne McKnight, Michael Gooseff, Keith Williams & Marianne Okal

Passive and Active Spectrum Sharing (PASS)

Kevin K. Gifford
PASS is an NSF-funded project (ECCS-2030233)[1]. This page provides access to the noise-floor survey SigMF[2][3] data sets generated as part of the project. The University of Colorado Boulder (CU) Passive and Active Spectrum Sharing (PASS) project directly addresses the related problems of protecting passive users while enabling secure, dynamic spectrum sharing between passive and active systems. The PASS project is an interdisciplinary collaboration with deep expertise in spectrum science, spectrum sharing, wireless systems, and system...

Taylor Valley Stream Hydrology TLS B-421 PS24 SV01

DIANE MCKNIGHT, Michael Gooseff, Marianne Okal & Keith Williams

Discrete Aurora on Mars: Insights into their distribution and activity from MAVEN/IUVS observations

Sonal Jain & Nicholas Schneider
The IUVS aurora data is the set of Level1C files that has a format similar to that the IUVS team has been publishing to the public using the NASA planetary data system's atmosphere node. The PDS website doesn't contain data for nightside observations whereas this data set is explicitly from nightside observation used in the aurora study that has been submitted (soon to be published) to ascientific journal. Detail of the data structure can be...

Ultra-sensitive multi-species spectroscopic breath analysis for real-time health monitoring and diagnostics

Ya-Chu Chan, Jun Ye, Qizhong Liang, Jutta Toscano, P. Bryan Changala & David J. Nesbitt
Abstract from associated manuscript: Abstract from the manuscript: Breath analysis enables rapid, non-invasive diagnostics, as well as long-term monitoring, of human health through the identification and quantification of exhaled biomarkers. Here, for the first time, we demonstrate the remarkable capabilities of mid-infrared (mid-IR) cavity-enhanced direct frequency comb spectroscopy (CE-DFCS) applied to breath analysis. We simultaneously detect and monitor as a function of time four breath biomarkers - CH3OH, CH4, H2O and HDO - as well...

Divergent sexual signals reflect costs of local parasites

Amanda Hund, Joanna K. Hubbard, Tomáš Albrecht, Yoni Vortman, Pavel Munclinger, Simona Krausová, Oldřich Tomášek & Rebecca J. Safran
Many closely related populations are distinguished by variation in sexual signals and this variation is hypothesized to play an important role in reproductive isolation and speciation. Within populations, there is considerable evidence that sexual signals provide information about the incidence and severity of parasite infections, but it remains unclear if variation in parasite communities across space could play a role in initiating or maintaining sexual trait divergence. To test for variation in parasite-associated selection, we...

Elucidating gene expression adaptation of phylogenetically divergent coral holobionts under heat stress

Viridiana Avila-Magaña, Bishoy Kamel, Michael DeSalvo, Kelly Gómez-Campo, Susana Enríquez, Hiroaki Kitano, Rori Rohlfs, Roberto Iglesias-Prieto & Mónica Medina
As coral reefs struggle to survive under climate change, it is crucial to know whether they have the capacity to withstand changing conditions, particularly increasing seawater temperatures. Thermal tolerance requires the integrative response of the different components of the coral holobiont (coral host, algal photosymbiont, and associated microbiome). Here, using a controlled thermal stress experiment across three divergent Caribbean coral species, we attempt to dissect holobiont member metatranscriptome responses from coral taxa with different sensitivities...

Morphological data quantifying sexual dimorphism of Anolis carolinensis in presence and absence of congener

Thor Veen, Yoel Stuart, Ambika Kamath & William Sherwin
Natural selection favors sexual dimorphism that reduces resource competition between the sexes of the same species. However, niche partitioning among interspecific competitors should counter such divergence, as partitioning the niche results in smaller total niche widths for each individual species, leaving less room for the sexes to diverge. A straightforward (and long-standing) hypothesis emerges: species in competitor-rich ecological communities should show less sexual dimorphism than species in competitor-poor ecological communities. Here, we test this prediction...

Imaging the breakdown of ohmic transport in graphene

Alec Jenkins, Susanne Baumann, Haoxin Zhou, Simon Meynell, Daipeng Yang, Kenji Watanabe, Takashi Taniguchi, Andrew Lucas, Andrea Young & Ania Bleszynski Jayich
Ohm's law describes the proportionality of current density and electric field. In solid-state conductors, Ohm's law emerges due to electron scattering processes that relax the electrical current. Here, we use nitrogen-vacancy center magnetometry to directly image the local breakdown of Ohm's law in a narrow constriction fabricated in a high mobility graphene monolayer. Ohmic flow is visible at room temperature as current concentration on the constriction edges, with flow profiles entirely determined by sample geometry....

Type III secretion system effector proteins are mechanically labile

Marc-Andre LeBlanc, Morgan Fink, Thomas Perkins & Marcelo Sousa
Multiple Gram-negative bacteria encode Type III secretion systems (T3SS) that allow them to inject effector proteins directly into host cells to facilitate colonization. To be secreted, effector proteins must be at least partially unfolded to pass through the narrow needle-like channel (diameter < 2 nm) of the T3SS. Fusion of effector proteins to tightly packed proteins—such as GFP, ubiquitin, or dihydrofolate reductase (DHFR)—impairs secretion and results in obstruction of the T3SS. Prior observation that unfolding...

Surgeonfish foraging data at Palmyra Atoll

Laura E. Dee, Jacob G. Eurich, Darcy Bradley, Peter M. Carlson, Kathryn Davis, Jessica Schem, April D. Ridlon & Jennifer E. Caselle
This dataset includes surgeonfish foraging metrics quantified during focal follow trials and includes: (a) bite composition, (b) bite rate, (c) foraging time, (d) foraging depth, and (e) forager size (cm). Data was collected at Palmyra Atoll on the back reef and fore reef habitats in 2013. Four common surgeonfishes (Acanthuridae) were selected as study species; Ctenochaetus striatus, Ctenochaetus marginatus, Acanthurus lineatus, and Acanthurus nigricans. The raw data is aggregated by a unique ID, which consists...

Stand-level variation drives canopy water storage by non-vascular epiphytes across a temperate-boreal ecotone

Daniel Stanton, Tana Route, Abby Glauser, Kate Hembre & Abigail Meyer
Epiphytes, including bryophytes and lichens, can significantly change the water interception and storage capacities of forest canopies. However, despite some understanding of this role, empirical evaluations of canopy and bole community water storage capacity by epiphytes are still quite limited. Epiphyte communities are shaped by both microclimate and host plant identity, and so the canopy and bole community storage capacity might also be expected to vary across similar spatial scales. We estimated canopy and bole...

Resource availability and heterogeneity shape the self‐organisation of regular spatial patterning

Jessica Castillo Vardaro, Juan A. Bonachela, Christopher C. M. Baker, Malin L. Pinsky, Daniel F. Doak, Robert M. Pringle & Corina E. Tarnita
Explaining large-scale ordered patterns and their effects on ecosystem functioning is a fundamental and controversial challenge in ecology. Here, we coupled empirical and theoretical approaches to explore how competition and spatial heterogeneity govern the regularity of colony dispersion in fungus-farming termites. Individuals from different colonies fought fiercely, and inter-nest distances were greater when nests were large and resources scarce—as expected if competition is strong, large colonies require more resources, and foraging area scales with resource...

Data from: Harnessing the NEON data revolution to advance open environmental science with a diverse and data-capable community

R Chelsea Nagy & Jennifer Balch
It is a critical time to reflect on the National Ecological Observatory Network (NEON) science to date as well as envision what research can be done right now with NEON (and other) data and what training is needed to enable a diverse user community. NEON became fully operational in May 2019 and has pivoted from planning and construction to operation and maintenance. In this overview, the history of and foundational thinking around NEON are discussed....

Data from: Effectiveness of antifungal treatments during chytridiomycosis epizootics in populations of an endangered frog

Roland Knapp, Maxwell Joseph, Thomas Smith, Ericka Hegeman, Vance Vredenburg, James Erdman, Daniel Boiano, Andrea Jani & Cheryl Briggs
The recently-emerged amphibian chytrid fungus Batrachochytrium dendrobatidis (Bd) has had an unprecedented impact on global amphibian populations, and highlights the urgent need to develop effective mitigation strategies. We conducted in-situ antifungal treatment experiments in wild populations of the endangered mountain yellow-legged frog during or immediately after Bd-caused mass die-off events. The objective of treatments was to reduce Bd infection intensity ("load") and in doing so alter frog-Bd dynamics and increase the probability of frog population...

Data for \"Perceptions of green space usage, abundance, and quality of green space were associated with better mental health during the COVID-19 pandemic among residents of Denver\"

Emma Rieves & Colleen Elizabeth Reid
Background: The COVID-19 pandemic has impacted both physical and mental health. This study aimed to understand whether exposure to green space buffered against stress and distress during the COVID-19 pandemic while taking into account significant stressors of the pandemic. Methods: We leveraged a cross-sectional survey on green space exposure and mental health among residents of Denver, CO that ran from November 2019 through January 2021. We measured objective green space as the average NDVI (normalized...

Four approaches leading to the age scale of the Young Island ice core

Dorothea Moser & Elizabeth Thomas
Young Island is a new ice core drilling site uniquely positioned to give insight into the (sub-)Antarctic climate. This dataset contains four preliminary dating approaches that lay the foundation for the age scale of the Young Island ice core presented in Moser et al. (2021). Funding was provided to SubICE by Ecole Polytechnique Federale de Lausanne, the Swiss Polar Institute, and Ferring Pharmaceuticals Inc (grant no. SubICE). ERT received core funding from NERC to the...

Spatial and temporal variation in phenotypes and fitness in response to developmental thermal environments

Jenna Pruett & Daniel Warner
1) Phenotypic variation within populations is influenced by the environment via plasticity and natural selection. How phenotypes respond to the environment can vary among traits, populations, and life stages in ways that can influence fitness. 2) Plastic responses during early development are particularly important because they can affect components of fitness throughout an individual’s life. Consequently, how natural selection shapes developmental plasticity could be influenced by fitness consequences across different life stages. Moreover, spatial variation...

Genomic evidence that governmentally produced Cannabis sativa poorly represents genetic variation available in state markets

Daniela Vergara
The National Institute on Drug Abuse (NIDA) is the sole producer of Cannabis for research purposes in the United States, including medical investigation. Previous research established that cannabinoid profiles in the NIDA varieties lacked diversity and potency relative to the Cannabis produced commercially. Additionally, microsatellite marker analyses have established that the NIDA varieties are genetically divergent form varieties produced in the private legal market. Here, we analyzed the genome of multiple Cannabis varieties from diverse...

Modulation of a protein-folding landscape revealed by AFM-based force spectroscopy notwithstanding instrumental limitations

Devin Edwards, Marc-Andre Leblanc & Thomas Perkins
Single-molecule force spectroscopy is a powerful tool for studying protein folding. Over the last decade, a key question has emerged: how are changes in intrinsic biomolecular dynamics altered by attachment to micron-scale force probes via flexible linkers? Here, we studied the folding/unfolding of α3D using AFM-based force spectroscopy. α3D offers an unusual opportunity as a prior smFRET study showed α3D’s molecular diffusion constant within the context of Kramers theory varies with pH. The resulting pH-dependence...

Data from: Effects of Bark Beetle Outbreaks on Forest Landscape Pattern in the Southern Rocky Mountains, U.S.A.

Kyle Rodman, Robert Andrus, Cori Butkiewicz, Teresa Chapman, Nathan Gill, Brian Harvey, Dominik Kulakowski, Niko Tutland, Thomas Veblen & Sarah Hart
Since the late 1990s, extensive outbreaks of native bark beetles (Curculionidae: Scolytinae) have affected coniferous forests throughout Europe and North America, driving changes in carbon storage, wildlife habitat, nutrient cycling, and water resource provisioning. Remote sensing is a crucial tool for quantifying the effects of these disturbances across broad landscapes. In particular, Landsat time series (LTS) are increasingly used to characterize outbreak dynamics, including the presence and severity of bark beetle-caused tree mortality, though broad-scale...

Registration Year

  • 2021
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  • University of Colorado Boulder
    72
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