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- Description:
- This dataset includes the python scripts and data required to reproduce work outlined in Mayhew et al. 2025 “The Global Importance of Gas-phase Peroxy Radical Accretion Reactions”. The study investigates the effect of a new atmospheric chemical pathway, gas-phase peroxy radical (RO2) accretion reactions, on global secondary organic aerosol (SOA).
- Keyword:
- Peroxy radical, Climate, Air quality, Aerosol, Accretion reactions, and RO2
- Subject:
- Climate and Air quality
- Creator:
- Haskins, Jessica and Mayhew, Alfred
- Owner:
- Madison Golden
- Language:
- English
- Date Uploaded:
- 04/14/2025
- Date Modified:
- 04/25/2025
- Date Created:
- 2025-04-01
- License:
- CC BY – Allows others to use and share your data, even commercially, with attribution.
- Resource Type:
- Dataset
- Identifier:
- https://doi.org/10.7278/S5d-80qm-kyjj
- Description:
- This data set contains 12-hour manual new snow and liquid precipitation equivalent (LPE) observations collected at the Alta-Collins (CLN) snow-study plot during the 2023/2024 cool season (October 1–April 30). CLN is located mid-mountain at Alta Ski Area in the Wasatch Range of northern Utah (approximately 111.63889W, 40.57607N) at an elevation of 2945 m.
- Keyword:
- atmospheric sciences and precipitation
- Subject:
- Precipitation
- Creator:
- Wasserstein, Michael L. and Steenburgh, Jim
- Owner:
- Based Near Label Tesim:
- Alta, Utah, United States
- Language:
- English
- Date Uploaded:
- 04/09/2025
- Date Modified:
- 04/25/2025
- Date Created:
- 2023-10-01 to 2024-04-30
- License:
- CC BY NC - Allows others to use and share your data non-commercially and with attribution.
- Resource Type:
- Dataset
- Identifier:
- https://doi.org/10.7278/S5d-dx7x-d8ay
- Description:
- The purpose of this study was to analyzed fertility intentions, behaviors, and pregnancies among 296 heterosexual couples participating in the Creighton model effectiveness, intentions, behaviors assessment (CEIBA) study. Couples who were new or returning users of the Creighton Model (CrM) with the intention to avoid pregnancy (at entry) at 17 Creighton Model Fertility Care Centers throughout the United States and in Toronto, Canada were enrolled in the study. Females were required to be between the ages of 18 and 39, inclusively, and the couple could not have any identified history, circumstance, or current treatment that would reduce fertility. Written informed consent was obtained from both partners.
- Keyword:
- pregnancy rates, natural family planning, and family planning effectiveness
- Subject:
- natural family planning
- Creator:
- Stanford, Joseph B., Porucznik, Christy, Najmabadi, Shahpar, and Chang, Chun-Pin Esther
- Contributor:
- Crockett, Becky, Fryer, Julie, Kruletz, Sebrena, Musso, Iris, Hansen, Jared, Xu, Crystal, Wu, Charles, Lowe, Michael, Singh, Nirupma, Krakowiak, Daisy, Carruth, Kaitlin, and CrM FertilityCare Centers
- Owner:
- Joseph Stanford
- Based Near Label Tesim:
- United States, , United States and Canada, , Canada
- Language:
- English
- Date Uploaded:
- 03/06/2025
- Date Modified:
- 04/11/2025
- Date Created:
- 2009-09-01 to 2013-02-01
- License:
- CC BY – Allows others to use and share your data, even commercially, with attribution.
- Resource Type:
- Dataset
- Identifier:
- http://doi.org/10.7278/S5d-3xdq-sq8h
- Description:
- The large lattice dynamics of lithium, driven by its low atomic mass, results in energetically similar structures and significant isotope effects under pressure, posing challenges to current theoretical models. Above 20 GPa and at low temperatures, lithium's electronic properties deviate from simple metallic behavior, with superconductivity emerging in a complex, pressure-dependent manner, alongside an unusual isotope effect. The structural phases of 7Li reported under these conditions are inconsistent across studies, and the structures of 6 Li remain unexamined. These gaps limit our understanding of the effects of pressure on lithium's electronic properties and the role of quantum lattice effects on its structural behavior under pressure. Here, we integrate experimental and theoretical approaches to investigate the low-temperature structural phase boundaries in lithium isotopes. We map the structural phase diagram of 7Li from 5 to 55 GPa and 15–75 K, identifying the sequence fcc→ℎ𝑅1→𝑐𝐼16. A pronounced isotope effect is observed, with 6Li shifting the fcc→ℎ𝑅1 phase boundary to lower pressures at 15 K. Density functional theory calculations further clarify how these structural changes affect superconducting properties, particularly emphasizing the role of the fcc→ℎ𝑅1 transition in lithium's superconductivity. Our findings offer insights into the unique behavior of lithium isotopes under pressure.
- Keyword:
- lithium isotopes
- Subject:
- Lithium--Isotopes
- Creator:
- Holle, William, Deemyad, Shanti, and Saffarian-Deemyad, Iren
- Owner:
- Madison Golden
- Date Uploaded:
- 02/13/2025
- Date Modified:
- 03/03/2025
- Date Created:
- 2019-10-10 to 2022-12-20
- License:
- CCO – As the data author, you are choosing to place your data into the public domain.
- Identifier:
- doi.org/10.7278/S5d-aq4d-1d3k
- Description:
- We analyze a new set of 275 n-body calculations designed to place limits on the masses of the small circumbinary satellites in the Pluto-Charon system. Together with calculations reported in previous papers, we repeat that a robust upper limit on the total mass of the four satellites is ~ 9.5 x 10^19 g. For satellite volumes derived from \nh, this mass limit implies a robust upper limit on the bulk densities of Nix and Hydra, <=1.7 g/cm^3, that are comparable to the bulk density of Charon. Additional calculations demonstrate that satellite systems with mass <= 8.25 x 10^19 g are robustly stable over the current age of the Sun. The bulk densities of Nix and Hydra in these lower mass systems are clearly smaller than the bulk density of Charon. These new n-body\results enable accurate measurements of eccentricity and inclination for Nix, Kerberos, and Hydra that agree well with orbital elements derived from numerical calculations with new HST and New Horizons state vectors. With these new state vectors, Styx has a 37 % larger eccentricity and an 85% smaller inclination, which makes it more prone to gravitational perturbations from Nix.
- Keyword:
- dynamical evolution, Kerberos, Hydra, Nix, Charon, Pluto, planets, satellites, and Styx
- Subject:
- Astrophysics
- Creator:
- Kenyon, Scott J. and Bromley, Benjamin C.
- Owner:
- BENJAMIN BROMLEY
- Based Near Label Tesim:
- Greenbelt, Maryland, United States
- Language:
- English
- Date Uploaded:
- 01/29/2025
- Date Modified:
- 01/29/2025
- Date Created:
- 2022-03-26 to 2025-01-17
- License:
- CC BY NC - Allows others to use and share your data non-commercially and with attribution.
- Resource Type:
- Dataset
- Description:
- Assessing the precision of different geochemical methods is crucial for quantifying rare earth elements (REEs) and critical minerals (CMs) in coal-bearing sedimentary strata, with application to broader sedimentary systems. This study analyzed 230 samples via portable X-ray fluorescence (pXRF) and subsequently high-graded them for inductively coupled plasma-mass spectrometry (ICP-MS) analysis. Samples originate from the Uinta Region of Utah and Western Colorado, with lithologies including coal, claystone, siltstone, mudstone, shale, sandstone, and igneous dikes. REE quantification relies heavily on pXRF and ICP-MS datasets, but the precision between these two methods is unconstrained, encouraging the investigation into the controlling variables associated with each analytical technique. With precision as the primary objective, several sample homogeneity and spatial experiments were conducted to compare pXRF and ICP-MS datasets. Results indicate that both datasets exhibit the greatest similarity when analyzing semi-equivalent areas and volumes of samples. Across all lithologies, powdered samples consistently exhibit greater precision between pXRF and ICP-MS datasets than whole rock samples, as seen in improved r2 values. This finding supports a proposed spatial grid approach to pXRF that quantifies the homogeneity of a three-dimensional sample, resulting in data statistically similar to that of ICP-MS. Ultimately, coupled high-resolution analyses using complimentary pXRF and ICP-MS methods (recommended herein) provide the greatest understanding of REE enrichment with the objective of precision. This recommended methodology produces an unbiased pXRF dataset, 63.3%-76.7% statistically similar to that of ICP-MS. This development is crucial for the confident utilization of pXRF analysis for geochemical evaluation, especially considering domestic CM resources.
- Keyword:
- Piceance Basin, critical minerals , precision, Blackhawk Formation, Uinta Basin, pXRF, Ferron Sandstone, Mesaverde Group, methodology, ICP-MS, energy transition, and rare earth elements
- Subject:
- sedimentology, critical minerals, stratigraphy, and geochemistry
- Creator:
- Gall, Ryan, Morris, Emma, Free, Michael, Fernandez, Diego, Coe, Haley, Fausett, Peyton, Birgenheier, Lauren, Vanden Berg, Michael, and Giebel, Andrew
- Owner:
- Date Uploaded:
- 01/22/2025
- Date Modified:
- 01/27/2025
- Date Created:
- 2022-05-23 to 2024-04-12
- License:
- Public Domain – This data is free of copyright restrictions (e.g. government sponsored data).
- Identifier:
- http://doi.org/10.7278/S5d-xmpj-tq44
- Description:
- The data in this repository resulted from a study that sought to determine nurses' evaluation criteria when encountering health information. The study employed a mixed-methods approach, including a survey and individual follow-up interviews. In the survey and interviews, nurses were asked to evaluate information written for the general public or a scholarly audience. The data includes the survey data and the coded interview data. The study is currently under review.
- Keyword:
- health information and nurses
- Subject:
- Nursing and Information Literacy
- Creator:
- Patterson, Brandon, Schvaneveldt, Nena, Diekema, Anne, and Hopkins, Betsy
- Owner:
- BRANDON PATTERSON
- Date Uploaded:
- 01/07/2025
- Date Modified:
- 03/03/2025
- Date Created:
- 2022-07-26 to 2022-08-19
- License:
- CC BY NC - Allows others to use and share your data non-commercially and with attribution.
- Resource Type:
- Dataset
- Identifier:
- https://doi.org/10.7278/S5d-908e-j35w
- Description:
- This dataset contains post-processed data from 12 experiments conducted between November 2020 and April 2021. The speed at which hydrometeors fall in different atmospheric turbulence conditions helps in Numerical weather predictions. The data and recreated figures/tables of Garrett et al. 20XX are also included.
- Keyword:
- frozen hydrometeors, turbulent air, numerical weather predictions, terminal velocity, settling velocity, and atmospheric sciences
- Subject:
- Earth atmosphere and Hydrometeors
- Creator:
- Pardyjak, Eric, Garrett, Timothy, and Singh, Dhiraj
- Owner:
- Language:
- English
- Date Uploaded:
- 12/27/2024
- Date Modified:
- 01/06/2025
- Date Created:
- 2020-11-15 to 2021-04-30
- License:
- CCO – As the data author, you are choosing to place your data into the public domain.
- Resource Type:
- Dataset and Video
- Identifier:
- https://doi.org/10.7278/S5d-44hp-6sdg
- Description:
- This dataset containts post-processed data from 3 radiative-convective equilibrium simulations run by the System for Atmospheric Modeling (SAM). The scripts to produce the data and recreate the figures/tables of Garrett et al. 20XX are also included. SAM's configuration files and restart files are provided for those interested in recreating the full dataset of the simulations or creating new test cases.
- Keyword:
- Radiative-Convective Equilibrium, System for Atmospheric Modeling , and Clouds
- Subject:
- Atmospheric Science
- Creator:
- Krueger, Steve and Bois, Corey
- Contributor:
- Garrett, Timothy
- Owner:
- Language:
- English and Python
- Date Uploaded:
- 12/06/2024
- Date Modified:
- 12/18/2024
- Date Created:
- 2023-03-15
- License:
- CC BY NC - Allows others to use and share your data non-commercially and with attribution.
- Resource Type:
- Dataset and Software or Program Code
- Identifier:
- https://doi.org/10.7278/S5d-hpjr-ckh0
- Description:
- This dataset includes the GEOS-Chem model output and python scripts required to reproduce work outlined in 'Potential Air Quality Side-Effects of Emitting H2O2 to Enhance Methane Oxidation as a Climate Solution' by Mayhew and Haskins. The study investigates the predicted change to a selection of air pollutants resulting from the addition of elevated point sources of H2O2 to GEOS-Chem to simulate a proposed methane mitigation technology. The efficiency of this technology is also assessed according to a simplified theoretical framework which is tested against the GEOS-Chem output.
- Keyword:
- Air Quality
- Subject:
- methane, air quality, and oxidation
- Creator:
- Jessica Haskins and Alfred Mayhew
- Owner:
- Madison Golden
- Language:
- English
- Date Uploaded:
- 12/05/2024
- Date Modified:
- 12/10/2024
- Date Created:
- 2024-10-01
- License:
- Public Domain – This data is free of copyright restrictions (e.g. government sponsored data).
- Resource Type:
- Dataset and Software or Program Code
- Identifier:
- https://doi.org/10.7278/S5d-gjdh-vkvn