We took advantage of the randomized allocation of the US EPA's funding for school bus replacements and retrofits to causally assess the impacts of upgrading buses through the EPA’s national School Bus Rebate Program on various outcomes including attendance, educational performance, and community air quality (PM2.5). Specifically, we used classical intent-to-treat analyses for randomized controlled trials to compare the changes in school district average attendance, test scores (reading language arts and math), and PM2.5 levels after vs before the 2012 through 2017 lotteries by funding selection status. We used overall district attendance rates and average standardized test scores since rates were not available for only school-bus riders.
The data sources and methods used to process the raw data are described in the paper forthcoming in Science and the associated Supplementary Information. A preprint for an earlier version of this paper is available here: https://osf.io/preprints/socarxiv/754e3. These data are anonymized (see Methodology for details). Consequently, running the same code on these data vs. the data in the paper does not yield *identical* results but qualitatively similar ones.
J. M. Z. Dumlao, M. Teplitskiy, Science, forthcoming. and Zumel Dumlao, J. M. and M. Teplitskiy. 2023. “The Effect of Reviewer Geographical Diversity on Evaluations Is Reduced by Anonymizing Submissions”. Retrieved (osf.io/preprints/socarxiv/754e3).
In this study, we took advantage of the randomized allocation of the US EPA's funding for school bus replacements and retrofits to causally assess the impacts of upgrading buses through the EPA’s national School Bus Rebate Program on attendance, educational performance, and community air quality (PM2.5). Specifically, we used classical intent-to-treat analyses for randomized controlled trials to compare the changes in school district average attendance, test scorers (reading language arts and math), and PM2.5 levels after vs before the 2012 through 2017 lotteries by funding selection status.
Adar SD, Pedde M, Hirth R, Szpiro A. 2024. Assessing the National Health, Education, and Air Quality Benefits of the United States Environmental Protection Agency’s School Bus Rebate Program: A Randomized Controlled Trial Design. Research Report 221. Boston, MA: Health Effects Institute.
The goal of this project is to relate properties of nanowire networks to their structure. The structure of these networks was determined from electron and atomic force microscopy, which were used as the basis for property predictions. Properties include sheet resistance, conductive anisotropy, absorption spectra, and current capacity.
This investigation utilizes a new and more accurate multiscale analysis that combines molecular dynamics and polycrystalline theory with micromechanics to capture the influence of the amorphous boron nitride interphase thickness on the mechanical properties of the SiC/SiC composites.
Scan of specimen ummz:mammals:75155 (Paraechinus micropus) - Skull. Raw Dataset includes 1601 TIF images (each 1955 x 1494 x 1 voxel at 0.03133604 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction. and Scan of specimen ummz:mammals:75155 (Paraechinus micropus) - Skull. Reconstructed Dataset includes 715 TIF images (each 1955 x 1494 x 1 voxel at 0.031336 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction.
Scan of specimen ummz:mammals:112960 (Desmodus rotundus) - WholeBody. Raw Dataset includes 3141 TIF images (each 1380 x 905 x 1 voxel at 0.04155583 mm resolution, derived from 3141 scan projections), xtek and vgi files for volume reconstruction. and Scan of specimen ummz:mammals:112960 (Desmodus rotundus) - WholeBody. Reconstructed Dataset includes 2000 TIF images (each 1380 x 905 x 1 voxel at 0.041556 mm resolution, derived from 3141 scan projections), xtek and vgi files for volume reconstruction.
Scan of specimen ummz:mammals:112960 (Desmodus rotundus) - Skull. Raw Dataset includes 3141 TIF images (each 1658 x 1482 x 1 voxel at 0.02050549 mm resolution, derived from 3141 scan projections), xtek and vgi files for volume reconstruction. and Scan of specimen ummz:mammals:112960 (Desmodus rotundus) - Skull. Reconstructed Dataset includes 1573 TIF images (each 1658 x 1482 x 1 voxel at 0.020505 mm resolution, derived from 3141 scan projections), xtek and vgi files for volume reconstruction.
Scan of specimen ummz:mammals:134553 (Gracilinanus agilis) - WholeBody. Raw Dataset includes 1601 TIF images (each 842 x 851 x 1 voxel at 0.05348922 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction. and Scan of specimen ummz:mammals:134553 (Gracilinanus agilis) - WholeBody. Reconstructed Dataset includes 1808 TIF images (each 842 x 851 x 1 voxel at 0.053489 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction.
Scan of specimen ummz:mammals:165659 (Trinomys SETOSUS) - Skull. Raw Dataset includes 1601 TIF images (each 1601 x 1852 x 1 voxel at 0.03347808 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction. and Scan of specimen ummz:mammals:165659 (Trinomys SETOSUS) - Skull. Reconstructed Dataset includes 749 TIF images (each 1601 x 1852 x 1 voxel at 0.033478 mm resolution, derived from 1601 scan projections), xtek and vgi files for volume reconstruction.