UMD Data Collection
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University of Maryland faculty and researchers can upload their research products in DRUM for rapid dissemination, global visibility and impact, and long-term preservation. Depositing data in DRUM can assist in compliance with data management and sharing requirements from the NSF, NIH, and other funding agencies and journals. You can also deposit code, documents, images, supplemental material, and other research products. DRUM tracks views and downloads of your research, and all DRUM records are indexed by Google and Google Scholar. Additionally, DRUM assigns permanent DOIs for your items, making it easy for other researchers to cite your work.
Submissions to the Data Collection
To add files to the UMD Data Collection, submit a new item through your associated department or program's DRUM collection and check the box indicating your upload contains a dataset.
Find more information and guidelines for depositing into the Data Collection on the University of Maryland Libraries' DRUM for Data page.
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Please direct questions regarding the UMD Data Collection or assistance in preparing and depositing data to the Data Services Librarian: lib-research-data@umd.edu.
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Item Crenshaw transcripts 2023(0023-08-24) Crenshaw, Kenyatta; Elby, AndrewItem Appendices to "Colonization of thistles by biocontrol agents"(2005-02-02T13:25:30Z) Dodge, Gary; Louda, Svata; Inouye, DavidAppendices B, C, and D for a manuscript from Gary Dodge's dissertation research (Biology Department, UMCP).Item Flowering phenology data, Rocky Mountain Biological Laboratory, 2005(2008-06-19) Inouye, David WilliamThese spreadsheets summarize data from a long-term study of the timing and variation of flowering collected by David Inouye (Professor, Department of Biology, UMCP) from permanent 2x2m plots at the Rocky Mountain Biological Laboratory. This submission contains a separate spreadsheet for each plot for 2005. Metadata for this project are available at the Web site of the Rocky Mountain Biological Laboratory (www.rmbl.org) and will also be deposited in DRUM.Item Flowering phenology data, Rocky Mountain Biological Laboratory, 2006(2008-06-23) Inouye, David WilliamThese spreadsheets summarize data from a long-term study of the timing and variation of flowering collected by David Inouye (Professor, Department of Biology, UMCP) from permanent 2x2m plots at the Rocky Mountain Biological Laboratory. This submission contains a separate spreadsheet for each plot for 2006. Metadata for this project are available at the Web site of the Rocky Mountain Biological Laboratory (www.rmbl.org) and will also be deposited in DRUM.Item Summary of long-term flowering data for Delphinium barbeyi at the Rocky Mountain Biological Laboratory(2008-06-24) Inouye, David WilliamThese data come from a long-term study (still in progress as of 2008) of the phenology and abundance of flowering at the Rocky Mountain Biological Laboratory by David Inouye. Individual plots (e.g., Wet Meadow Plot #1) are 2x2m, and are visited every other day to count all flowers of all species. This file summarizes data from 1973-2007 for 14 plots, including: the first date of flowering, date of the peak number of flowers, date of the peak number of inflorescences, the peak number of flowers counted, the peak number of inflorescences counted, and the length of the flowering period.Item Summary of long-term flowering data for Delphinium nuttallianum at the Rocky Mountain Biological Laboratory(2008-06-24) Inouye, David WilliamThese data come from a long-term study (still in progress as of 2008) of the phenology and abundance of flowering at the Rocky Mountain Biological Laboratory by David Inouye. Individual plots (e.g., Rocky Meadow Plot #7) are 2x2m, and are visited every other day to count all flowers of all species. This file summarizes data from 1973-2007 for 8 plots, including: the first date of flowering, date of the peak number of flowers, date of the peak number of inflorescences, the peak number of flowers counted, the peak number of inflorescences counted, and the length of the flowering period.Item Summary of long-term flowering data for Mertensia fusiformis at the Rocky Mountain Biological Laboratory(2008-06-24) Inouye, David WilliamThese data come from a long-term study (still in progress as of 2008) of the phenology and abundance of flowering at the Rocky Mountain Biological Laboratory by David Inouye. Individual plots (e.g., Rocky Meadow Plot #7) are 2x2m, and are visited every other day to count all flowers of all species. This file summarizes data from 1973-2007 for 21 plots, including: the first date of flowering, date of the peak number of flowers, date of the peak number of inflorescences, the peak number of flowers counted, the peak number of inflorescences counted, and the length of the flowering period.Item Population matrix models for Frasera speciosa from 1974 to 2007(2010-03-22) Che-Castaldo, Judy; Inouye, DavidThis file contains the matrix population models for a population of Frasera speciosa in the Elk Mountains of southwestern Colorado, for the years 1974-2007.Item Annual census of flowering Frasera speciosa plants near the Rocky Mountain Biological Laboratory, Colorado(2011-12-21) Inouye, David W.Each year from 1979 - 2011 the number of flowering Frasera speciosa (Gentianaceae) plants visible with binoculars along approximately 14 km of County Road 317 (Gothic Road) was counted in approximately 130 meadows or parts of meadows. Plants were also counted in four areas not completely visible from the road, the “Research Meadow” at the Rocky Mountain Biological Laboratory (a large meadow just south of Copper Creek), the townsite of Gothic, where RMBL is located, a meadow surrounding the Kyle cabin between the Gothic Road and the East River, and meadows along about 2km of the Kettle Pond Road, a dirt road that parallels the Gothic Road but on the East side of the East River (south to N38° 5268’, W106°58.2380’). The N – S road segment starts a few hundred m south of the border of the Gunnison National Forest, at the North Village valley of Mount Crested Butte (N38° 55.1582’, W106° 57.6223’), on the west side of the road, and continues to the north end of Emerald Lake (N39° 0.6949’, W107°2.5683’), shortly before Schofield Pass at the top of the East River valley. Altitude along the transect ranges from 2,920m to 3,190m, and areas included in the census extend approximately 2,850m below the road to as far as 3,322m above it, and range as far as approximately 600m from the road.Item Phase II Archaeological Testing at the James Holliday House on East Street (18AP116), Annapolis, Maryland, 2010-2012(2013) Deeley, Kathryn H.; Leone, Mark P.Archaeological excavations at 99 East Street began in December 2009, with two shovel test pits dug to determine if the stratigraphy was intact at the site. Preliminary analyses concluded that the site was archaeologically intact, with materials found at least two feet below the surface and intact layers of deposition. In June 2010, more intensive excavations began as part of the University of Maryland Field School in Urban Archaeology, and continued until June 18. Two large, deep units (5’x5’ squares) were excavated in the backyard of 99 East Street and produced thousands of artifacts, including buttons, broken dishes, whole bottles, and a very large number of food bones, which were processed, cataloged and analyzed in the Archaeology in Annapolis Laboratory at the University of Maryland, College Park. In June 2011, three additional units were placed at the site, two 4’ x 5’ units in the backyard and a 5’ x 5’ unit in the basement of the house. These three units produced over ten thousand artifacts, including animal bones, glass bottles, broken dishes, dozens of buttons, marbles, a Spanish coin, and a corroded gun. These artifacts were processed, cataloged and analyzed in the Archaeology in Annapolis Laboratory at the University of Maryland, College Park. Finally, in the June 2012, three final units were placed at the site, one 5’ x 5’ unit in the basement, one 4’ x 4’ unit in the basement, and one 4’ x 4’ unit in the backyard. Over five thousand artifacts were recovered in these three units, including glass bottles, broken dishes, assorted buttons, marbles, slate pencils, straight pins, thimbles, animal bones, a redware tobacco pipe bowl, and a wooden lice comb. These artifacts were catalogued and are currently being analyzed in the Archaeology in Annapolis Laboratory. These many thousands of artifacts will identify how the Holliday family lived their daily life, showing what the Holliday family ate, how they were eating their food, and what they threw away or lost. Excavations at 99 East Street will continue for an additional summer season of excavation, which will help provide even more information about how the Holliday family saw themselves, the extent of their ties to the Naval Academy and how they negotiated their way around racism in Annapolis.Item Flowering phenology at the Rocky Mountain Biological Laboratory 1973-2012(2013-07-31) Inouye, DavidThis spreadsheet contains data on the phenology (timing) and abundance of flowering by wildflowers in 30 2x2m plots at the Rocky Mountain Biological Laboratory, from an NSF-funded research project conducted by Dr. David W. Inouye and collaborators. Metadata for this project are also available on DRUM. NOTE ADDED APRIL 2017: There is now a (slightly) corrected version of this dataset, which also includes data through 2016, assembled primarily by Dr. Jane Ogilvie and Dr. Amy Iler, through support from the National Science Foundation's program "Long-term Research in Environmental Biology". It is archived on the Open Science Framework, at https://osf.io/jt4n5/. The site includes a link to a data use policy document, which we ask users to fill out and submit so we can track use of the data and help to prevent duplication of analyses.Item Database of fly visitation to flowers collated by David Inouye 2013(2013-09-24) Inouye, DavidAn Access database of records collated from the literature about flies pollinating or at least visiting flowers.Item Instances for the Recoverable Robust Two-Level Network Design Problem(2014) Alvarez-Miranda, Eduardo; Ljubic, Ivana; Raghavan, S.; Toth, PaoloWe provide the instances used in the paper "The Recoverable Robust Two-Level Network Design Problem", by E. Alvarez-Miranda, I. Ljubic, S. Raghavan and P. Toth, accepted for publication in the INFORMS J. on Computing, 2014 (http://dx.doi.org/10.1287/ijoc.2014.0606). This repository contains both the instances used in the paper as well as the results obtained by the proposed algorithm.Item Evidence for Development and Enhancement of a Popular Reading Collection in an Academic Library(2014-08-13) Hackman, Timothy; Larson, Elizabeth; Corlett-Rivera, KelseyUnderlying data for article about using circulation statistics to manage UMD's popular reading collection. Submitted to Evidence-Based Library and Information Practice journal in August 2014.Item Size and shape characteristics of airborne amphibole asbestos and amphibole cleavage fragments(2015) Wylie, Ann G.; Virta, Robert L.; Shedd, Kim B.; Snyder, Janet G.Data on size and shape characteristics of airborne amphibole asbestos and amphibole cleavage fragments obtained from air-monitoring filters at three mine sites and two industrial sites: (1) Homestake Gold Mine, Lead, South Dakota, (2) Shadwell Quarry, Charlottesville Stone Quarry, Virginia, (3) Peter Mitchell Iron Ore Mine, Mesabi Range, Minnesota, (4) a shipyard, and (5) an electrical company. Data were collected in ca. 1977-1979. Most data values were obtained with Scanning Electron Microscopy (SEM) with Energy-Dispersive X-Ray Analysis (EDXA) capability. See documentation file for full study abstract, an explanation of the content of the data files, and references to associated publications. The xlsx files may contain multiple studies on separate sheets. Please see the documentation file for an explanation of the various studies. The csv versions contain the same data as the corresponding xlsx file, but their structure has been modified to make well-formed csv. Where there are multiple studies for a particular site, the studies have been divided into separate csv files. The csv files are provided as a software-independent alternative to the xlsx format.Item Size distribution measurements of amosite, crocidolite, chrysotile, and nonfibrous tremolite(2015) Wylie, Ann G.; Virta, Robert L.[Originally uploaded 2015-12-09. Updated 2016-03-24 to add the chrysotile data.] Size distribution measurements of South African amosite, South African crocidolite, chrysotile, and New York tremolite by scanning electron and transmission electron microscopy. These materials were characterized by the University of Maryland as part of a project undertaken by the US Bureau of Mines on behalf of the National Institute of Environmental Health Sciences (NIEHS) which used the materials in an animal oral ingestion study. Data were collected in ca. 1976. See documentation file for full study abstract, an explanation of the content of the data files, and references to associated publications. The csv versions contain the same data as the corresponding xlsx files. The csv files are provided as a software-independent alternative to the xlsx format.Item Instances for the Generalized Regenerator Location Problem(2015) Chen, Si; Ljubic, Ivana; Raghavan, S.Item Supplementary Material: “Because math”: Epistemological stance or defusing social tension in QM?(2015) Sohr, Erin Ronayne; Dreyfus, Benjamin W.; Gupta, Ayush; Elby, Andrew; Gupta, AyushThis document provides supporting materials for a paper submitted for review to the Physics Education Research Conference proceedings in 2015 titled, “‘Because math’: Epistemological stance or defusing social tension in QM?” It includes 3 sections: (1) Introduction, (2) Transcript data, and (3) the Particle in a Box tutorial worksheet relevant to the data.Item Size and shape characteristics of amphibole cleavage fragments from milled riebeckite(2015) Wylie, Ann G.; Schweitzer, Peter; Siegrist, H. GaltData on size and shape characteristics of riebeckite cleavage fragments. The sample was obtained from the Long Valley Creek Quarry, California. Data were collected in ca. 1978-1979. Data values were obtained with Scanning Electron Microscopy (SEM) with Energy-Dispersive X-Ray Analysis (EDXA) capability. See documentation file for full study abstract, an explanation of the content of the data files, and references to associated publications. The csv version contains the same data as the corresponding xlsx file, but its structure has been modified to make well-formed csv. The csv files are provided as a software-independent alternative to the xlsx format.Item Collective phenomena in granular and atmospheric electrification(2015-07-29) Nordsiek, Freja; Lathrop, DanielThis repository contains data from the Granular Electrification Experiment in the University of Maryland Nonlinear Dynamics Lab. The experiment consists of a cylindrical cell with aluminum plates on the top and bottom. The cell is filled with granular particles and shaken vertically for several cycles. The vertical position of the cell and the electric potential between the top and bottom endplates of the cell are acquired. The data in this repository is from experiments in which the cylindrical cell is filled with only one type of particle. One exception uses two types of particles, pointed out below. A particle type is comprised of its material, form (spheres or powder), and size range. The acceleration timeseries of the shaking is approximately a square wave with amplitude a, meaning that the vertical position is approximately a sequence of parabolas of alternating concavity. The stroke-length of the oscillation is 10.0 cm. The shaking strength is quantified as a/g where g is the free fall acceleration due to gravity on Earth. The amount of particles is quantified by the dimensionless parameter lambda = 2 N_p d^2 / (3 D^2) where N_p is the number of particles, d is the particle diameter (or effective diameter), and D is the diameter of the cell.