Browsing by Type "Dataset"

Now showing 1 - 20 of 1753
  • Thumbnail Image
    Item
    10.5 T CRT-MRSI metabolic, spectral and quality maps
    (2024-10-01) Marjanska, Malgorzata; Bogner, Wolfgang; Hingerl, Lukas; Strasser, Bernhard; gosia@umn.edu; Marjanska, Malgorzata; University of Minnesota, Center for Magnetic Resonance Research
    Magnetic resonance spectroscopy data measured from a brain of a healthy volunteer at 10. 5 tesla. These data show the metabolic maps, CRLB maps and LCModel fits, input data and fitted baseline in nifti-format. The volunteer was measured three different resolutions (4.40 mm³ isotropic, 3.44 mm³ isotropic, and 2.75 mm³ isotropic) using a concentric ring trajectory (CRT) FID-based sequence, reconstructed using a discrete Fourier transform, and fitted with LCModel (for more details, see below). The metabolic maps are in auxilliary units (a.u.) and are not in physical units. All these files can be viewed with freeview of freesurfer 7.1.1. It is being released to allow researchers to fully appreciate these 3D datasets, which are hard to otherwise visualize.
  • Thumbnail Image
    Item
    15N labeling of amino acids in Spirodela Polyrhiza
    (2018-02-15) Evans, Erin M.; Freund, Dana M.; Sondervan, Veronica; Cohen, Jerry D.; Hegeman, Adrian D.; jewet033@umn.edu; Evans, Erin M.
    These data comprise15N stable isotopic labeling study of amino acids in Spirodela polyrhiza (common duckweed) grown under three different light and carbon input conditions which represent unique potential metabolic modes. Plants were grown with a light cycle, either with supplemental sucrose (mixotrophic) or without supplemental sucrose (photoautotrophic) and in the dark with supplemental sucrose (heterotrophic). In this study, stable isotopic labeling with 15N of S. polyrhiza allowed for estimation of amino acid pool sizes, turnover, and kinetics.
  • Thumbnail Image
    Item
    16S Intestinal Microbiome Sequences of Rhesus Macaques Treated with Chronic Morphine for 92 Days, SIV for 21 Days, or in Combination (Morphine for 70 Days then SIV+Morphine for 21 Days)
    (2017-04-10) Sindberg, Gregory M; Roy, Sabita; sind0017@umn.edu; Sindberg, Gregory M
    Rhesus Macaque fecal matter was sequenced at different intervals after receiving Morphine I.V., SIV infection, or in sequence. The intervals are as follows: Morphine for 92 days, SIV for 21 days, or a sequence of morphine for 70 days then SIV+Morphine for 21 days. This was used to look for microbial and metabolic changes due to the treatments.
  • No Thumbnail Available
    Item
  • Thumbnail Image
    Item
    16S RNA data for biofilm in contact with antimicrobial peptide coatings
    (2020-04-23) Aparicio, Conrado; Moussa, Dina G.; apari003@umn.edu; Aparicio, Conrado; Minnesota Dental Research Center for Biomaterials and Biomechanics
    Dual-indexed 16S rRNA gene amplicon sequencing using the V3-V4 region on the Illumina MiSeq platform 300PE for triplicate samples of biofilm from stocks of oral plaque sample grown on hydroxyapaptite discs without (CTRL) and with antimicrobial peptide (1018, DJK2, D-GL13K) coatings, treated and non-treated with PMA. This data was collected as part of the NIDCR funded project R01-DE to determine the effects of antimicrobial peptides in the microbiome of biofilms from oral plaque stocks to prevent degradation of dental restorations. The data was generated at the University of Minnesota Genomics Center and analyzed at the University of Minnesota Informatics Institute. The data is released to be of public access following submission of a manuscript presenting and analyzing this data.
  • No Thumbnail Available
    Item
    1920-1995 Twin Cities State Highway Network
    (2014-03-21) Chen, Wei; Levinson, David M; dlevinson@umn.edu; Levinson, David M.
    Illustrates the development of the highway network in the Twin Cities metropolitan region. GIS maps of the state highway network were created for 1920-1995 (these were not previously digitized). These were used to build Markov Chain Cellular Automata models of land use change and network growth.
  • Thumbnail Image
    Item
    1958 Twin Cities Land Use Map from the Twin Cities Metropolitan Planning Commission, GIS Data Files
    (2013-11-22) Chen, Wei; Levinson, David M; dlevinson@umn.edu; Levinson, David M.
    High-quality GIS land use maps for the Twin Cities Metropolitan Area for 1958 that were developed from paper maps (no GIS version existed previously).
  • Thumbnail Image
    Item
    1968 Twin Cities Land Use Map from the Twin Cities Metropolitan Planning Commission, GIS Data Files
    (2014-03-03) Levinson, David M; Chen, Wei; dlevinson@umn.edu; Levinson, David M.
    High-quality GIS land use maps for the Twin Cities Metropolitan Area for 1968 that were developed from paper maps (no GIS version existed previously).
  • Thumbnail Image
    Item
    1978 Twin Cities Land Use Map from the Twin Cities Metropolitan Planning Commission, GIS Data Files
    (2014-03-03) Levinson, David M; Chen, Wei; dlevinson@umn.edu; Levinson, David M.
    High-quality GIS land use maps for the Twin Cities Metropolitan Area for 1978 that were developed from paper maps (no GIS version existed previously).
  • Thumbnail Image
    Item
    1D SAXS indexing macro for Igor Pro
    (2021-09-08) Lindsay, Aaron P; Mueller, Andreas J; Mahanthappa, Mahesh K; Lodge, Timothy P; Bates, Frank S; bates001@umn.edu; Bates, Frank S; UMN Polymer Group
    This code was developed for the facile analysis of 1D SAXS data collected from ordered materials in Igor Pro. A robust file loading algorithm is included, allowing for rapid generation of publication quality stack plots. Also included is a straightforward indexing macro, enabling indexing of 1D SAXS data to a variety of phases. New phases can be added with minimal effort and multiple indexing options are included (e.g., ticks, lines, color, etc.), minimizing time spent analyzing data and producing plots for presentations or publications.
  • Thumbnail Image
    Item
    2003 Rock Properties Database: Density, Magnetic Susceptibility, and Natural Remanent Magnetization of Rocks in Minnesota
    (Minnesota Geological Survey, 2010-08-06) Chandler, V.W; Lively, R.S; mgs@umn.edu; Minnesota Geological Survey
    Geologic interpretation of gravity and magnetic anomaly data in a given area is greatly enhanced if density, magnetic susceptibility and natural remanent magnetization (NRM) data are available for representative rock-types. Along with outcrop and drill-hole information, rock property data help relate geophysical anomaly signatures to probable rock types, and provide constraints on the use of anomaly data as a tool for mapping and for modeling geology at depth. Most of the density and magnetization data contained in this database were acquired over the last two decades by the Minnesota Geological Survey (MGS) as part of an on-going program to collect rock properties. A group of Paleozoic samples were collected from Iowa and included in the database because they provide a representative suite of data for rocks present, but not widely exposed in Minnesota. Additional data were derived from studies by the U. S. Geological Survey (Bath, 1962; Beck, 1970; Beck and Lindsley, 1969; Books, 1972; Jahren, 1965), The University of Minnesota (Bleifuss, 1952, Mooney and Bleifuss, 1952), The University of Western Ontario (Palmer, 1970), and the Geological Survey of Canada (Dubois, 1962).
  • Thumbnail Image
    Item
    2010 Lake Superior Mooring Deployment Campaign
    (2021-03-10) Austin, Jay A; jaustin@d.umn.edu; Austin, Jay; University of Minnesota Duluth, Large Lakes Observatory
    Since 2005, investigators at UM Duluth's Large Lakes Observatory have been deploying sub-surface moorings in Lake Superior to investigate thermal structure and currents. This submission contains all temperature and current data from deployments that occurred in 2010.
  • Thumbnail Image
    Item
    2015 Twin Cities Metropolitan Area Urban Tree Canopy Assessment
    (2017-01-03) Knight, Joe F; Rampi, Lian P; Host, Trevor K; jknight@umn.edu; Knight, Joseph, F
    A high-resolution (1-meter) tree canopy assessment was completed for the Twin Cities Metropolitan Area. Mapping of existing and potential tree canopy is critical for urban tree management at the landscape level. This classification was created from combined 2015 aerial imagery, LIDAR data, and ancillary thematic layers. These data sets were integrated using an Object-Based Image Analysis (OBIA) approach through multi-resolution image segmentation and an iterative set of classification commands in the form of customized rulesets. eCognition® Developer was used to develop the rulesets and produce raster classification products for TCMA. The results were evaluated using randomly placed and independent verified assessment points. The classification product was analyzed at regional scales to compare distributions of tree canopy spatially and at different resolutions. The combination of spectral data and LiDAR through an OBIA method helped to improve the overall accuracy results providing more aesthetically pleasing maps of tree canopy with highly accurate results.
  • Thumbnail Image
    Item
    3D Maps
    (2024-04-29) Campbell, Karen; Morin, Paul; kmc@umn.edu; Campbell, Karen; National Center for Earth-Surface Dynamics (NCED)
    NCED is currently involved in researching the effectiveness of anaglyph maps in the classroom and are working with educators and scientists to interpret various Earth-surface processes. Based on the findings of the research, various activities and interpretive information will be developed and available for educators to use in their classrooms. Keep checking back with this website because activities and maps are always being updated. We believe that anaglyph maps are an important tool in helping students see the world and are working to further develop materials and activities to support educators in their use of the maps. This website has various 3-D maps and supporting materials that are available for download. Maps can be printed, viewed on computer monitors, or projected on to screens for larger audiences. Keep an eye on our website for more maps, activities and new information. Let us know how you use anaglyph maps in your classroom. Email any ideas or activities you have to ncedmaps@umn.edu Anaglyph paper maps are a cost effective offshoot of the GeoWall Project. Geowall is a high end visualization tool developed for use in the University of Minnesota's Geology and Geophysics Department. Because of its effectiveness it has been expanded to 300 institutions across the United States. GeoWall projects 3-D images and allows students to see 3-D representations but is limited because of the technology. Paper maps are a cost effective solution that allows anaglyph technology to be used in classroom and field-based applications. Maps are best when viewed with RED/CYAN anaglyph glasses! A note on downloading: "viewable" maps are .jpg files; "high-quality downloads" are .tif files. While it is possible to view the latter in a web-browser in most cases, the download may be slow. As an alternative, try right-clicking on the link to the high-quality download and choosing "save" from the pop-up menu that results. Save the file to your own machine, then try opening the saved copy. This may be faster than clicking directly on the link to open it in the browser.
  • Thumbnail Image
    Item
    ableC: Extensible Specification of C Using the Silver Attribute Grammar System
    (2017-08-24) Kaminski, Ted; Kramer, Lucas; Carlson, Travis; Van Wyk, Eric; evw@umn.edu; Van Wyk, Eric; University of Minnesota, Department of Computer Science and Engineering, Minnesota Extensible Language Tools Group
    This is the Silver specification of ableC: a specification of C at the ISO C11 standard. There may be newer, unarchived versions of this software at http://melt.cs.umn.edu.
  • Thumbnail Image
    Item
    Abnormal Recovery from Acute Stress in Huntingtons Disease Mice
    (2018-03-12) Zacharoff, Lori; Hamid, Arif; Engeland, William C; Dubinsky, Janet M; dubin001@umn.edu; Dubinsky, Janet M
    Comparisons of hypothalamic dysfunction between Huntington’s Disease (HD) patients and rodent models of HD have not always yielded similar results. Cortisol levels in HD patients have been contradictory, with reports ranging from hypo- to hypercorticoidism of morning measurements. Initial reports of major elevations in circulating corticosterone levels in the R6/2 mouse model of HD have only been followed up in one other closely related model, the R6/1 mouse, and the results were not perfectly congruent. To determine if abnormal stress hormones were a characteristic of disease, we examined diurnal and stress-induced corticosterone levels in multiple HD mouse models.
  • Thumbnail Image
    Item
    Academic Librarians and Academic Freedom Survey Data
    (2021-08-14) Leebaw, Danya; Logsdon, Alexis; leeba005@umn.edu; Leebaw, Danya; University of Minnesota Libraries
    The data is a spreadsheet downloaded from survey responses in Qualtrics. The authors surveyed academic librarians about their attitudes toward and experiences with academic freedom in their workplaces. Of the nearly 750 people who began the survey, just under 600 qualified for the survey as current academic library employees who gave their consent to the survey. The authors have only included the survey data for this subset of respondents. Also included is a set of comments made in an optional free-text field at the end of the survey. They are presented separate from their authors’ survey responses to ensure anonymity.
  • Thumbnail Image
    Item
    Acceptability of Neuroscientific Interventions in Education
    (2021-03-22) Schmied, Astrid; Varma, Sashank; Dubinsky, Janet M; sashank@umn.edu; Varma, Sashank; University of Minnesota Departments of Neuroscience and Educational Psychology
    Researchers are increasingly applying neuroscience technologies that probe or manipulate the brain to improve educational outcomes. However, their use remains fraught with ethical controversies. Here, we investigate the acceptability of neuroscience applications to educational practice in two groups of young adults: those studying bioscience who will be driving future basic neuroscience research and technology transfer, and those studying education who will be choosing among neuroscience-derived applications for their students. Respondents rated the acceptability of six scenarios describing neuroscience applications to education spanning multiple methodologies, from neuroimaging to neuroactive drugs to brain stimulation. They did so from two perspectives (student, teacher) and for three recipient populations (low-achieving, high-achieving students, students with learning disabilities). Overall, the bioscience students were more favorable to all neuroscience applications than the education students. Scenarios that measured brain activity (i.e., EEG or fMRI) to assess or predict intellectual abilities were deemed more acceptable than manipulations of mental activity by drug use or stimulation techniques, which may violate body integrity. Enhancement up to the norm for low-achieving students and especially students with learning disabilities was more favorably viewed than enhancement beyond the norm for high-achieving students. Finally, respondents rated neuroscientific applications to be less acceptable when adopting the perspective of a teacher than that of a student. Future studies should go beyond the coarse acceptability ratings collected here to delineate the role that concepts of access, equity, authenticity, agency and personal choice play in guiding respondents’ reasoning.
  • Thumbnail Image
    Item
    Access Across America: Auto 2018 Data
    (2020-01-31) Murphy, Brendan; Owen, Andrew; aowen@umn.edu; Owen, Andrew; University of Minnesota Center for Transportation Studies, Accessibility Observatory
    These data were created as part of a study that examined the accessibility to jobs by auto in the 50 largest (by population) metropolitan areas in the United States. It is the most detailed evaluation to date of access to jobs by auto, and it allows for a direct comparison of the auto accessibility performance of America's largest metropolitan areas. These data are part of a longitudinal study. The data available describe access to jobs by auto in the states of Arkansas, California, District of Columbia, Florida, Illinois, Iowa, Maryland, Massachusetts, Minnesota, North Carolina, Tennessee, Washington, and Virginia, and the metropolitan areas within these states.
  • Thumbnail Image
    Item
    Access Across America: Auto 2021 Data
    (2023-09-21) Owen, Andrew; Liu, Shirley Shiqin; Jain, Saumya; Hockert, Matthew; Lind, Eric; owenx148@umn.edu; Owen, Andrew; University of Minnesota Center for Transportation Studies, Accessibility Observatory
    These data were created as part of a study that examined the accessibility to jobs by auto in the 50 largest (by population) metropolitan areas in the United States. The data include access at realistic observed driving speeds by time of day and road segment. The underlying speed data inputs restrict data sharing to participating sponsor states. The data available describe access to jobs by auto in the states/districts of California, Connecticut, District of Columbia, Florida, Illinois, Maryland, Massachusetts, Michigan, Minnesota, North Carolina, Texas; and the metropolitan areas within these states. These data are part of a longitudinal study. Auto data for additional years can be found in the Accessibility Observatory Data collection: http://hdl.handle.net/11299/200592