Radiocarbon dates, sedimentology, and pollen counts from the late Holocene sediments of Oblong Tarn, Mount Kenya
Contributors: Courtney Mustaphi, Colin, Gajewski, Konrad, Marchant, Rob, Rosqvist, Gunhild
... Cores of the sediments from Oblong Tarn, Mount Kenya, were collected in 1983 and 1986, and were conventional radiocarbon dated to examine late Holocene glacier history of the mountain. Subsequently pollen samples were taken from both cores to create a composite pollen record.
Contributors: Boston College. Center for Retirement Research
... To see how the recent financial downturn affected workers nearing retirement, the Center for Retirement Research commissioned an Internet survey of 1,317 working Americans between the ages of 45 and 59. This survey was conducted by Knowledge Networks during July and August 2009 using their nationally representative panel. A subsample of 358 individuals who had at least $50,000 in pre-downturn retirement assets and experienced a loss of at least 10%, were asked to respond to four additional questions measuring the effect of financial literacy. The survey addressed a wide range of factors that could influence workers' response to the downturn, including socio-economic, financial, employment, and behavioral characteristics.
Contributors: Boston College. Center for Retirement Research
... To see if attitudes are changing about the potential for using one's home to cover living expenses in retirement, the Center for Retirement Research commissioned a survey that examined the house as a potential source of retirement income. Harris Interactive® conducted the study online within the United States between January 24 and February 2, 2007 among 2,673 adults (aged 50-65). Figures for age, sex, race, education, household income, and region were weighted where necessary to bring them into line with their actual proportions in the population. Propensity score weighting was also used to adjust for respondents’ propensity to be online. The questionnaire, results, and raw data from both surveys are available.
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Contributors: Law, Casey
... Data products to support reproduction of the first interferometric localization of Fast Radio Burst 121102. First publication available at http://dx.doi.org/10.1038/nature20797 and data analysis recipes are available at http://github.com/caseyjlaw/FRB121102. The principle data products are nine tar files of fast-sampled interferometric data from the Very Large Array. Each observation segment includes 4 seconds (800 integrations) of visibilities centered on a radio burst from FRB 121102. Data is in science data model (SDM) format, which consists of a directory with metadata in XML files and binary data in the ASDMBinary subdirectory. Binary data were recorded with an integration time of 5 ms, frequencies at S-band (2.5-3.5 GHz; 256 channels), and dual-circular polarizations. Each file is identified by a unique name of the observation, plus the observation start time in MJD. Each visibility data set has an associated calibration file (telcal format; ending in ".GN") that can be parsed to apply gain calibration. The Python package rtpipe (https://github.com/caseyjlaw/rtpipe) can perform all calibration and analysis of these data. This library is supported by sdmpy (https://github.com/demorest/sdmpy), a Python library to read SDM files, and pwkit (https://github.com/pkgw/pwkit), a Python interface to the CASA data analysis package. See also http://realfast.io for information on the project behind the data acquisition system and analysis software.
Contributors: Mullinix, Kevin J., Leeper, Thomas J., Druckman, James N., Freese, Jeremy
... This archive contains datasets, R analysis files, and supplemental materials for: Mullinix, Kevin J., Thomas J. Leeper, James N. Druckman, and Jeremy Freese. "The Generalizability of Survey Experiments." Journal of Experimental Political Science, Forthcoming. See README for details on the contents of this archive.
Contributors: Hopkins, Daniel
... Retrospective voting is a central explanation for voters’ support of incumbents. Yet despite the variety of conditions facing American cities, past research has devoted little attention to retrospective voting for mayors. This paper first develops hypotheses about how local retrospective voting might differ from its national analog, due to both differing information and the presence of national benchmarks. It then analyzes retrospective voting using the largest data set on big-city mayoral elections between 1990 and 2011 to date. Neither crime rates nor property values consistently influence incumbent mayors’ vote shares, nor do changes in local conditions. However, low city-level unemployment relative to national unemployment correlates with higher incumbent support. The urban voter is a particular type of retrospective voter, one who compares local economic performance to conditions elsewhere. Moreover, these effects appear to be present only in cities that dominate their media markets, suggesting media outlets’ role in facilitating retrospective voting.
Contributors: Forget, Gaël
... See README
SEM and TEM Images of the Interior of Spin-Exchange Optical Pumping Cells used in 129Xe Flow-Through Polarizers
Contributors: Flower, C., Freeman, M., Schrank, G.M., Plue, M., Driehuys, B.
... This dataset contains images from SEM and TEM scans of new and used spin-exchange optical pumping cells. The SEM images were taken using an an FEI XL30 SEM (FEI Inc., Hillsboro, OR). The TEM images were taken on a Formvar-coated TEM grids with a 200 mesh (Electron Microscopy Science-FCF200-CU-TB) on a FEI Tecnai G² Twin.
Contributors: Ratkovic, Marc, Tingley, Dustin
... Replication matrerials for Ratkovic and Tingley (2016) “ Sparse Estimation and Uncertainty with Application to Subgroup Analysis.” All files, data, and scripts needed to generate the figures and results in the paper are in this archive. The zip file contains two sets of files, for the Bechtel and Scheve (2013) replication and files for replicating the simulation study.
Contributors: Arbués, Ignacio , Ledo, Ramiro, Matilla-García, Mariano
... There are a number of econometrics tools to deal with the different types of situations in which cointegration can appear: I(1), I(2), seasonal, polyno- mial, etc. There are also different kinds of Vector Error Correction models related to these situations. The authors propose a unified theoretical and practical framework to deal with many of these situations. To this aim: (i) they introduce a general class of models and (ii) provide an automatic method to identify models, based on estimating the Smith form of an autoregressive model. Their simulations suggest the power of the new proposed methodology. An empirical example illustrates the methodology.