Rapid Global Fitting of Large Fluorescence Lifetime Imaging Microscopy Datasets
- Publication Date
- August 05, 2013
- Journal
- PLOS ONE
- Authors
- Sean C. Warren, Anca Margineanu, Dominic Alibhai, Douglas J. Kelly, et al
- Volume
- 8
- Issue
- 8
- Pages
- e70687
- DOI
- https://dx.plos.org/10.1371/journal.pone.0070687
- Publisher URL
- http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0070687
- PubMed
- http://www.ncbi.nlm.nih.gov/pubmed/23940626
- PubMed Central
- http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3734241
- Europe PMC
- http://europepmc.org/abstract/MED/23940626
- Web of Science
- 000324465000120
- Scopus
- 84881105876
- Mendeley
- http://www.mendeley.com/research/rapid-global-fitting-large-fluorescence-lifetime-imaging-microscopy-datasets
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Mendeley | Further Information
{"title"=>"Rapid Global Fitting of Large Fluorescence Lifetime Imaging Microscopy Datasets", "type"=>"journal", "authors"=>[{"first_name"=>"Sean C.", "last_name"=>"Warren", "scopus_author_id"=>"55481468100"}, {"first_name"=>"Anca", "last_name"=>"Margineanu", "scopus_author_id"=>"6506148040"}, {"first_name"=>"Dominic", "last_name"=>"Alibhai", "scopus_author_id"=>"36994452200"}, {"first_name"=>"Douglas J.", "last_name"=>"Kelly", "scopus_author_id"=>"36994558500"}, {"first_name"=>"Clifford", "last_name"=>"Talbot", "scopus_author_id"=>"7102656895"}, {"first_name"=>"Yuriy", "last_name"=>"Alexandrov", "scopus_author_id"=>"56366976700"}, {"first_name"=>"Ian", "last_name"=>"Munro", "scopus_author_id"=>"7102267271"}, {"first_name"=>"Matilda", "last_name"=>"Katan", "scopus_author_id"=>"7102317240"}, {"first_name"=>"Chris", "last_name"=>"Dunsby", "scopus_author_id"=>"57191168594"}, {"first_name"=>"Paul M.W.", "last_name"=>"French", "scopus_author_id"=>"7201406426"}], "year"=>2013, "source"=>"PLoS ONE", "identifiers"=>{"sgr"=>"84881105876", "doi"=>"10.1371/journal.pone.0070687", "pui"=>"369492061", "pmid"=>"23940626", "scopus"=>"2-s2.0-84881105876", "issn"=>"19326203", "isbn"=>"1932-6203 (Electronic) 1932-6203 (Linking)"}, "id"=>"57ccf7cf-1b28-3cfa-8f17-1f31ae011b3c", "abstract"=>"Fluorescence lifetime imaging (FLIM) is widely applied to obtain quantitative information from fluorescence signals, particularly using Förster Resonant Energy Transfer (FRET) measurements to map, for example, protein-protein interactions. Extracting FRET efficiencies or population fractions typically entails fitting data to complex fluorescence decay models but such experiments are frequently photon constrained, particularly for live cell or in vivo imaging, and this leads to unacceptable errors when analysing data on a pixel-wise basis. Lifetimes and population fractions may, however, be more robustly extracted using global analysis to simultaneously fit the fluorescence decay data of all pixels in an image or dataset to a multi-exponential model under the assumption that the lifetime components are invariant across the image (dataset). This approach is often considered to be prohibitively slow and/or computationally expensive but we present here a computationally efficient global analysis algorithm for the analysis of time-correlated single photon counting (TCSPC) or time-gated FLIM data based on variable projection. It makes efficient use of both computer processor and memory resources, requiring less than a minute to analyse time series and multiwell plate datasets with hundreds of FLIM images on standard personal computers. This lifetime analysis takes account of repetitive excitation, including fluorescence photons excited by earlier pulses contributing to the fit, and is able to accommodate time-varying backgrounds and instrument response functions. We demonstrate that this global approach allows us to readily fit time-resolved fluorescence data to complex models including a four-exponential model of a FRET system, for which the FRET efficiencies of the two species of a bi-exponential donor are linked, and polarisation-resolved lifetime data, where a fluorescence intensity and bi-exponential anisotropy decay model is applied to the analysis of live cell homo-FRET data. A software package implementing this algorithm, FLIMfit, is available under an open source licence through the Open Microscopy Environment.", "link"=>"http://www.mendeley.com/research/rapid-global-fitting-large-fluorescence-lifetime-imaging-microscopy-datasets", "reader_count"=>116, "reader_count_by_academic_status"=>{"Unspecified"=>2, "Professor > Associate Professor"=>7, "Librarian"=>1, "Researcher"=>35, "Student > Doctoral Student"=>2, "Student > Ph. D. Student"=>42, "Student > Postgraduate"=>5, "Student > Master"=>9, "Other"=>3, "Student > Bachelor"=>7, "Professor"=>3}, "reader_count_by_user_role"=>{"Unspecified"=>2, "Professor > Associate Professor"=>7, "Librarian"=>1, "Researcher"=>35, "Student > Doctoral Student"=>2, "Student > Ph. D. Student"=>42, "Student > Postgraduate"=>5, "Student > Master"=>9, "Other"=>3, "Student > Bachelor"=>7, "Professor"=>3}, "reader_count_by_subject_area"=>{"Unspecified"=>6, "Agricultural and Biological Sciences"=>29, "Arts and Humanities"=>1, "Chemistry"=>13, "Computer Science"=>1, "Engineering"=>13, "Environmental Science"=>3, "Biochemistry, Genetics and Molecular Biology"=>15, "Materials Science"=>1, "Medicine and Dentistry"=>3, "Pharmacology, Toxicology and Pharmaceutical Science"=>1, "Physics and Astronomy"=>27, "Social Sciences"=>2, "Immunology and Microbiology"=>1}, "reader_count_by_subdiscipline"=>{"Materials Science"=>{"Materials Science"=>1}, "Medicine and Dentistry"=>{"Medicine and Dentistry"=>3}, "Social Sciences"=>{"Social Sciences"=>2}, "Physics and Astronomy"=>{"Physics and Astronomy"=>27}, "Unspecified"=>{"Unspecified"=>6}, "Environmental Science"=>{"Environmental Science"=>3}, "Pharmacology, Toxicology and Pharmaceutical Science"=>{"Pharmacology, Toxicology and Pharmaceutical Science"=>1}, "Arts and Humanities"=>{"Arts and Humanities"=>1}, "Engineering"=>{"Engineering"=>13}, "Chemistry"=>{"Chemistry"=>13}, "Immunology and Microbiology"=>{"Immunology and Microbiology"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>29}, "Computer Science"=>{"Computer Science"=>1}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>15}}, "reader_count_by_country"=>{"Argentina"=>1, "Czech Republic"=>1, "United Kingdom"=>3, "South Africa"=>1, "France"=>2, "Australia"=>1, "Portugal"=>1, "Germany"=>1}, "group_count"=>5}CrossRef
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Scopus | Further Information
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- {"month"=>"11", "year"=>"2019", "pdf_views"=>"29", "xml_views"=>"1", "html_views"=>"56"}
- {"month"=>"12", "year"=>"2019", "pdf_views"=>"17", "xml_views"=>"3", "html_views"=>"33"}
- {"month"=>"1", "year"=>"2020", "pdf_views"=>"37", "xml_views"=>"1", "html_views"=>"64"}
- {"month"=>"2", "year"=>"2020", "pdf_views"=>"27", "xml_views"=>"1", "html_views"=>"47"}
- {"month"=>"3", "year"=>"2020", "pdf_views"=>"29", "xml_views"=>"1", "html_views"=>"51"}
- {"month"=>"4", "year"=>"2020", "pdf_views"=>"69", "xml_views"=>"1", "html_views"=>"48"}
- {"month"=>"5", "year"=>"2020", "pdf_views"=>"54", "xml_views"=>"2", "html_views"=>"36"}
- {"month"=>"6", "year"=>"2020", "pdf_views"=>"20", "xml_views"=>"1", "html_views"=>"55"}
- {"month"=>"7", "year"=>"2020", "pdf_views"=>"30", "xml_views"=>"0", "html_views"=>"48"}
- {"month"=>"8", "year"=>"2020", "pdf_views"=>"32", "xml_views"=>"0", "html_views"=>"42"}
- {"month"=>"9", "year"=>"2020", "pdf_views"=>"29", "xml_views"=>"1", "html_views"=>"50"}
- {"month"=>"10", "year"=>"2020", "pdf_views"=>"39", "xml_views"=>"1", "html_views"=>"49"}
- {"month"=>"11", "year"=>"2020", "pdf_views"=>"36", "xml_views"=>"2", "html_views"=>"34"}
- {"month"=>"12", "year"=>"2020", "pdf_views"=>"33", "xml_views"=>"1", "html_views"=>"41"}
- {"month"=>"1", "year"=>"2021", "pdf_views"=>"20", "xml_views"=>"2", "html_views"=>"55"}
- {"month"=>"2", "year"=>"2021", "pdf_views"=>"22", "xml_views"=>"0", "html_views"=>"46"}
- {"month"=>"3", "year"=>"2021", "pdf_views"=>"1", "xml_views"=>"0", "html_views"=>"4"}
PMC Usage Stats | Further Information
- {"unique-ip"=>"14", "full-text"=>"12", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"5", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"8"}
- {"unique-ip"=>"17", "full-text"=>"16", "pdf"=>"6", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"3", "cited-by"=>"0", "year"=>"2013", "month"=>"9"}
- {"unique-ip"=>"18", "full-text"=>"14", "pdf"=>"10", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"9", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2013", "month"=>"10"}
- {"unique-ip"=>"13", "full-text"=>"14", "pdf"=>"8", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"11"}
- {"unique-ip"=>"6", "full-text"=>"10", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2013", "month"=>"12"}
- {"unique-ip"=>"8", "full-text"=>"8", "pdf"=>"1", "abstract"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"1"}
- {"unique-ip"=>"11", "full-text"=>"16", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"4", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"2"}
- {"unique-ip"=>"14", "full-text"=>"11", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"4", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"3"}
- {"unique-ip"=>"15", "full-text"=>"15", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"5"}
- {"unique-ip"=>"17", "full-text"=>"14", "pdf"=>"4", "abstract"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"6"}
- {"unique-ip"=>"6", "full-text"=>"7", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"4"}
- {"unique-ip"=>"19", "full-text"=>"26", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"4"}
- {"unique-ip"=>"18", "full-text"=>"26", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"5"}
- {"unique-ip"=>"14", "full-text"=>"12", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"6"}
- {"unique-ip"=>"12", "full-text"=>"12", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"7"}
- {"unique-ip"=>"23", "full-text"=>"26", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2015", "month"=>"3"}
- {"unique-ip"=>"14", "full-text"=>"7", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"9", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"2"}
- {"unique-ip"=>"13", "full-text"=>"14", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"8"}
- {"unique-ip"=>"12", "full-text"=>"13", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"4", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"9"}
- {"unique-ip"=>"12", "full-text"=>"14", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"10"}
- {"unique-ip"=>"10", "full-text"=>"7", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2014", "month"=>"7"}
- {"unique-ip"=>"10", "full-text"=>"12", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"8"}
- {"unique-ip"=>"20", "full-text"=>"20", "pdf"=>"6", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2014", "month"=>"9"}
- {"unique-ip"=>"22", "full-text"=>"35", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2014", "month"=>"10"}
- {"unique-ip"=>"13", "full-text"=>"12", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"1"}
- {"unique-ip"=>"11", "full-text"=>"9", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"2"}
- {"unique-ip"=>"19", "full-text"=>"28", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2014", "month"=>"11"}
- {"unique-ip"=>"10", "full-text"=>"13", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2014", "month"=>"12"}
- {"unique-ip"=>"11", "full-text"=>"10", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"1"}
- {"unique-ip"=>"18", "full-text"=>"16", "pdf"=>"7", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"5", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2015", "month"=>"11"}
- {"unique-ip"=>"12", "full-text"=>"12", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"12"}
- {"unique-ip"=>"8", "full-text"=>"7", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2016", "month"=>"3"}
- {"unique-ip"=>"9", "full-text"=>"8", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"4"}
- {"unique-ip"=>"16", "full-text"=>"11", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"5", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2016", "month"=>"5"}
- {"unique-ip"=>"12", "full-text"=>"17", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"6"}
- {"unique-ip"=>"13", "full-text"=>"13", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"4", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"7"}
- {"unique-ip"=>"14", "full-text"=>"13", "pdf"=>"5", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"8"}
- {"unique-ip"=>"7", "full-text"=>"6", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"4", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"9"}
- {"unique-ip"=>"10", "full-text"=>"10", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2016", "month"=>"10"}
- {"unique-ip"=>"18", "full-text"=>"16", "pdf"=>"6", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2016", "month"=>"11"}
- {"unique-ip"=>"5", "full-text"=>"3", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"12"}
- {"unique-ip"=>"11", "full-text"=>"10", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2017", "month"=>"1"}
- {"unique-ip"=>"9", "full-text"=>"6", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"2"}
- {"unique-ip"=>"7", "full-text"=>"8", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"3"}
- {"unique-ip"=>"12", "full-text"=>"12", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"4"}
- {"unique-ip"=>"18", "full-text"=>"19", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"4", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"5"}
- {"unique-ip"=>"12", "full-text"=>"12", "pdf"=>"6", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"6"}
- {"unique-ip"=>"11", "full-text"=>"11", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"7"}
- {"unique-ip"=>"12", "full-text"=>"12", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"2", "cited-by"=>"0", "year"=>"2017", "month"=>"8"}
- {"unique-ip"=>"13", "full-text"=>"13", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"4", "cited-by"=>"0", "year"=>"2017", "month"=>"9"}
- {"unique-ip"=>"16", "full-text"=>"15", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"10"}
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- {"unique-ip"=>"2", "full-text"=>"2", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"12"}
- {"unique-ip"=>"10", "full-text"=>"8", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"1"}
- {"unique-ip"=>"1", "full-text"=>"1", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"2"}
- {"unique-ip"=>"7", "full-text"=>"8", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"1", "year"=>"2018", "month"=>"3"}
- {"unique-ip"=>"15", "full-text"=>"13", "pdf"=>"6", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"1"}
- {"unique-ip"=>"12", "full-text"=>"13", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"5"}
- {"unique-ip"=>"14", "full-text"=>"17", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"6"}
- {"unique-ip"=>"25", "full-text"=>"22", "pdf"=>"7", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"2", "cited-by"=>"0", "year"=>"2018", "month"=>"7"}
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- {"unique-ip"=>"19", "full-text"=>"25", "pdf"=>"3", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"3", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"8"}
- {"unique-ip"=>"15", "full-text"=>"19", "pdf"=>"6", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"10"}
- {"unique-ip"=>"7", "full-text"=>"7", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"9"}
- {"unique-ip"=>"13", "full-text"=>"14", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"12"}
- {"unique-ip"=>"15", "full-text"=>"25", "pdf"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2018", "month"=>"11"}
- {"unique-ip"=>"12", "full-text"=>"10", "pdf"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"1", "cited-by"=>"2", "year"=>"2019", "month"=>"2"}
- {"unique-ip"=>"14", "full-text"=>"14", "pdf"=>"3", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"2", "year"=>"2019", "month"=>"3"}
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- {"unique-ip"=>"14", "full-text"=>"13", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"10", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"5"}
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Relative Metric
{"start_date"=>"2013-01-01T00:00:00Z", "end_date"=>"2013-12-31T00:00:00Z", "subject_areas"=>[{"subject_area"=>"/Computer and information sciences", "average_usage"=>[297, 488, 616, 724, 828, 939, 1038, 1127, 1223, 1311, 1393, 1479, 1556]}, {"subject_area"=>"/Computer and information sciences/Computer architecture", "average_usage"=>[300, 574, 713, 870, 1026, 1147, 1257, 1362, 1526, 1669, 1833, 1979, 2084, 2297]}, {"subject_area"=>"/Physical sciences/Materials science", "average_usage"=>[250, 417, 535, 649, 758, 857, 952, 1036, 1113, 1206, 1287, 1353, 1429]}, {"subject_area"=>"/Physical sciences/Mathematics", "average_usage"=>[259, 431, 541, 639, 727, 816, 898, 980, 1061, 1136, 1214, 1294, 1356]}, {"subject_area"=>"/Physical sciences/Physics", "average_usage"=>[254, 421, 527, 626, 720, 813, 900, 983, 1063, 1136, 1210, 1283, 1342]}]}Loading … 

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