Searching the RRID Resource Information Network

Our searching services are busy right now. Please try again later

  • Register
X
Forgot Password

If you have forgotten your password you can enter your email here and get a temporary password sent to your email.

X

Leaving Community

Are you sure you want to leave this community? Leaving the community will revoke any permissions you have been granted in this community.

No
Yes

Preparing word cloud

×

SciCrunch Registry is a curated repository of scientific resources, with a focus on biomedical resources, including tools, databases, and core facilities - visit SciCrunch to register your resource.

Search

Type in a keyword to search

Filter by records added date
See new records

Options


Current Facets and Filters

  • Keywords:usedit (facet)

Facets


Recent searches

Snippet view Table view
Click the to add this resource to a Collection

2,436 Results - per page

Show More Columns | Download Top 1000 Results

Resource Name Proper Citation Abbreviations Resource Type Description Keywords Resource Relationships Related Condition Funding Defining Citation Availability Specification URL Alternate IDs Alternate URLs Old URLs Parent Organization Resource ID Synonyms Record Last Update Mentions Count
Virginia University School of Medicine Advanced Microscopy Core Facility
 
Resource Report
Resource Website
10+ mentions
Virginia University School of Medicine Advanced Microscopy Core Facility (RRID:SCR_018736) AMF core facility, service resource, access service resource Advanced Microscopy Facility is microscopy service and shared instrumentation facility in University of Virginia biomedical research community. Pprovides expertise and instrument access for electron and light microscopy imaging technologies as well as image analysis tools and services for basic scientists and clinical researchers within University of Virginia and across Commonwealth. USEDit, microscopy, electron microscopy, light microscopy, imaging technology, image analysis, training, sample preparation, consultation, ABRF, ABRF is listed by: ABRF CoreMarketplace
has parent organization: University of Virginia School of Medicine; Virginia; USA
Open ABRF_1018, SCR_018744 https://coremarketplace.org/?FacilityID=1018, https://med.virginia.edu/advanced-microscopy-facility/services/ SCR_018736 University of Virginia UVA Advanced Microscopy Facility, UVA Advanced Microscopy Facility 2026-08-01 12:12:43 19
University of Florida ICBR Gene Expression and Genotyping Core Facility
 
Resource Report
Resource Website
50+ mentions
University of Florida ICBR Gene Expression and Genotyping Core Facility (RRID:SCR_019145) core facility, service resource, access service resource Core provides services and consultation on Single Cell RNA-Seq, RNA-Seq, 16s metagenomics and Affymetrix gene expression arrays. High-throughput RNA-seq libraries, 16s libraries and sequencing capture libraries can be done by using Agilent Bravo robot. QuantiGene RNA Assays measure up to 80 gene targets directly with degraded and cross-linked RNA in FFPE tissues and blood, with no RNA purification required.BioRad QX200 AutoDG Droplet Digital PCR System provides absolute quantification of target DNA or RNA molecules with greater precision and sensitivity than qPCR, sensitivity off ddPCR System can facilitate expanded analysis of single cells. Genotyping services include fragment analysis using AB3730, 96 capillary technology, development of microsatellite libraries using Illumina sequence data, and genotyping using mouse tails or ear punches. USEDit, gene expression, genotyping, single cell RNAseq, PCR, qPCR, analysis, ABRF is listed by: ABRF CoreMarketplace
has parent organization: University of Florida; Florida; USA
ABRF_647 https://coremarketplace.org/?FacilityID=647 SCR_019145 University of Florida ICBR Gene Expression and Genotyping, UF ICBR Gene Expression & Genotyping 2026-08-01 12:12:44 50
Cardiff University Central Biotechnology Services Core Facility
 
Resource Report
Resource Website
Cardiff University Central Biotechnology Services Core Facility (RRID:SCR_019141) core facility, service resource, access service resource Core provides facilities including cell analysis and imaging, genomics and bioinformatics, proteins and diagnostics. Services include experimental design advice, sample preparation,data generation,data analysis. USEDit, cell analysis and imaging, genomics and bioinformatics, proteins and diagnostics, ABRF, ABRF is listed by: ABRF CoreMarketplace
has parent organization: Cardiff University; Wales; United Kingdom
open ABRF_1070 https://coremarketplace.org/?FacilityID=1070 SCR_019141 Central Biotechnology Services, CU-Central Biotechnology Services 2026-08-01 12:12:43 0
Colorado University at Boulder Biochemistry Shared Instruments Pool Core Facility
 
Resource Report
Resource Website
50+ mentions
Colorado University at Boulder Biochemistry Shared Instruments Pool Core Facility (RRID:SCR_018986) core facility, service resource, access service resource Provides access to multitude of instruments and techniques, including EPR, CD and fluorescence spectroscopy, DLS, Sec-MALS, ITC, MST, stopped-flow spectroscopy, chemical quench-flow, imaging systems, centrifuges, scintillation counters, sonicators and more. USEDit, spectroscopy, fluorescence spectroscopy, stopped flow spectroscopy, imaging, centrifuge, scintillation counter, sonicator, EPR, CD, DLS, ABRF, ABRF is listed by: ABRF CoreMarketplace
has parent organization: University of Colorado Boulder; Colorado; USA
open ABRF_1038 https://coremarketplace.org/?FacilityID=1038 SCR_018986 Biochemistry and Shared Instrumentation, Biochemistry Shared Instruments Pool 2026-08-01 12:12:43 71
Colorado University at Boulder Biochemistry Cell Culture Core Facility
 
Resource Report
Resource Website
10+ mentions
Colorado University at Boulder Biochemistry Cell Culture Core Facility (RRID:SCR_018988) core facility, service resource, access service resource Provides investigators within the Department a user-friendly, shared environment where researchers can advance discovery in diverse areas such as cancer biology, drug discovery, nanomaterial analysis and basic life science. Provides Biosafety Cabinets, CO2 Incubators including viral and variable oxygen (tri-gas) Insect cell incubator and shaker, Large-scale mammalian incubator, Routine mycoplasma testing,FBS testing,Training, In-house media preparation. USEDit, ABRF, ABRF is listed by: ABRF CoreMarketplace Restricted ABRF_1040 https://coremarketplace.org/?FacilityID=1040 SCR_018988 Biochemistry Cell Culture Facility 2026-08-01 12:12:43 17
Colorado University at Boulder Green Labs Core Facility
 
Resource Report
Resource Website
1+ mentions
Colorado University at Boulder Green Labs Core Facility (RRID:SCR_018989) core facility, service resource, access service resource Core provides help to efficiently use of resources by involving individual laboratory members in identifying opportunities for efficiency in their laboratory and promoting efficient behaviors, upgrading inefficient laboratory equipment and techniques, compelling labs to use lab space, fume hoods, and lab equipment resources efficiently and in collaborative manner, developing means to reduce large flow of lab materials into waste stream, promoting green chemistry and chemical re-use where feasible.Core provides instruments including Shared Stirling Ultracold Ultra Low Temperature Freezer and Shared Thermo Scientific Ultracold Ultra Low Temperature Freezer. USEDit, freezer, low temperature, ultracold, laboratory efficiency, efficient behavior, inefficient equipment upgrading, green chemistry promotion, chemical reuse promotion, ABRF, ABRF is listed by: ABRF CoreMarketplace
has parent organization: University of Colorado Boulder; Colorado; USA
SCR_019027, ABRF_1043 https://coremarketplace.org/?FacilityID=1043 SCR_018989 CU Green Labs Shared Ultra-Low Temperature (ULT) Freezers, CU Green Labs, University of Colorado – Boulder Green Labs, CU- Boulder Green Labs 2026-08-01 12:12:29 1
Colorado University at Boulder Shared Instrumentation in Nanofabrication and Characterization Core Facility
 
Resource Report
Resource Website
10+ mentions
Colorado University at Boulder Shared Instrumentation in Nanofabrication and Characterization Core Facility (RRID:SCR_018985) COSINC core facility, service resource, access service resource, training service resource Multidisciplinary core research facility and service center, within College of Engineering and Applied Science, that provides access to equipment in areas of micro and nanofabrication, nanomaterials characterization and metrology and offers expertise and advanced hands-on training. Offers common platform for convergence of multiple scientific and engineering disciplines and facilitates collaborative research with strategic partners and information exchange. USEDit, microfabrication, nanofabrication, nanomaterial, training, ABRF, ABRF is listed by: ABRF CoreMarketplace
has parent organization: University of Colorado Boulder; Colorado; USA
open ABRF_1037 https://coremarketplace.org/?FacilityID=1037 SCR_018985 Colorado Shared Instrumentation in Nanofabrication and Characterization 2026-08-01 12:12:44 11
University of Florida ICBR Proteomics and Mass Spectrometry Core Facility
 
Resource Report
Resource Website
1+ mentions
University of Florida ICBR Proteomics and Mass Spectrometry Core Facility (RRID:SCR_019151) core facility, service resource, access service resource Provides service and training in proteomics and mass spectrometry. Services in proteomics, differential proteomics, two dimensional difference gel electrophoresis, isobaric tags for relative and absolute quantitation, tandem mass tags, iodoTMT, stable isotope labeling with amino acids in cell culture, quantification of proteins by label-free LC-MS/MS, and analysis of protein post translational modifications and molecular weight determination. Core offers education, consultation, data processing and reporting, and support of grant application. USEDit, differential proteomics, 2D difference gel electrophoresis, isobaric tags, relative quantitation, absolute quantitation, tandem mass tags, iodoTMT, stable isotope labeling, protein quantification, ABRF, ABRF is listed by: ABRF CoreMarketplace
has parent organization: University of Florida; Florida; USA
ABRF_651 https://coremarketplace.org/?FacilityID=651 SCR_019151 ICBR-Proteomics, ICBR Proteomics and Mass Spectrometry Facility, UF ICBR Proteomics and Mass Spectrometry 2026-08-01 12:12:43 5
University of Florida ICBR NextGen DNA Sequencing Core Facility
 
Resource Report
Resource Website
50+ mentions
University of Florida ICBR NextGen DNA Sequencing Core Facility (RRID:SCR_019152) ICBR-NGS core facility, service resource, access service resource Core provides platforms including Illumina NextSeq500 and MiSeq, HiSeq3000 and Pacific Biosciences SEQUEL system. Offers free consultation in sequencing technologies including read length, error rate, predominant type of error, data output/run, speed, cost. Services include de novo sequencing of whole genomes, targeted sequencing, transcriptome sequencing, chromatin immunoprecipitation sequencing, methylation analysis and metagenomics. USEDit, sequencing technologies, de novo sequencing, whole genomes, targeted sequencing, transcriptome sequencing, chromatin immunoprecipitation sequencing, methylation analysis, metagenomics, ABRF, ABRF is listed by: ABRF CoreMarketplace
has parent organization: University of Florida; Florida; USA
ABRF_650 https://coremarketplace.org/?FacilityID=650 SCR_019152 UF ICBR NextGen DNA Sequencing, University of Florida UF ICBR NextGen DNA Sequencing 2026-08-01 12:12:44 67
Sainte-Justine University Hospital Research Center Platform for Imaging by Microscopy Core Facility
 
Resource Report
Resource Website
Sainte-Justine University Hospital Research Center Platform for Imaging by Microscopy Core Facility (RRID:SCR_019032) PIM core facility, service resource, access service resource Core offers light microscopy instruments, image analysis tools, consultations and training. Platform for imaging by microscopy. USEDit, microscopy instrument, microscopy, image analysis, imaging, consultation, training, ABRF, ABRF is listed by: ABRF CoreMarketplace open ABRF_1049 https://coremarketplace.org/?FacilityID=1049 SCR_019032 Centre Hospitalier Universitaire Sainte-Justine CHUSJ - PIM Platform for Imaging by Microscopy, CHUSJ - PIM Platform for Imaging by Microscopy 2026-08-01 12:12:44 0
University of Tennessee JIAM Diffraction Core Facility
 
Resource Report
Resource Website
University of Tennessee JIAM Diffraction Core Facility (RRID:SCR_018677) core facility, service resource, access service resource Provides users with access to Panalytical XPert3 MRD and Panalytical Empyrean XRD platforms to perform variety of X-ray diffraction experiments including phase identification, phase quantification, crystallite size and microstrain determination, pole figures, residual stress, high-temperature in situ measurements. These instruments are available for both assisted and unassisted use with prior approval. USEDit, Panalytical XPert3 MRD, Panalytical Empyrean XRD, X-ray diffraction, phase identification, phase quantification, crystallite size, microstrain determination, residual stress, high temperature in situ measurements, ABRF, ABRF is listed by: ABRF CoreMarketplace Open ABRF_689 https://coremarketplace.org/?FacilityID=689 SCR_018677 JIAM Diffraction Facility, University of Tennessee JIAM X-Ray Diffraction Core, JIAM X-Ray Diffraction Core, JIAM X-ray Diffraction Core Facility 2026-08-01 12:12:44 0
Rutgers Waksman Institute of Microbiology Cell and Cell Products Fermentation Core Facility
 
Resource Report
Resource Website
Rutgers Waksman Institute of Microbiology Cell and Cell Products Fermentation Core Facility (RRID:SCR_018676) core facility, service resource, access service resource Provides fermentation services. Produces range of bulk biologics including antimicrobials, cosmetic substrates, flavors/fragrances, biopesticides/bioherbicides and plasmid derived proteins, enzymes, growth factors and diagnostics. Exceptions for pathogenic or opportunistic organisms and mammalian and insect cell lines. Includes Material Preparation Laboratory,Fermentation In-Process/Computer Control,Product Recovery and Analytical Services. USEDit, fermentation service, antimicrobial, cosmetic substrate, fragrance, biopesticide, bioherbicide, plasmid, protein, enzyme, growth factor, diagnostics, product recovery, analytical service, ABRF, ABRF is listed by: ABRF CoreMarketplace Open ABRF_1002 https://coremarketplace.org/?FacilityID=1002 SCR_018676 Cell and Cell Products Fermentation Facility, Waksman Institute of Microbiology (Busch Campus) 2026-08-01 12:12:28 0
University of Nebraska Medical Center Animal Behavior Core Facility
 
Resource Report
Resource Website
1+ mentions
University of Nebraska Medical Center Animal Behavior Core Facility (RRID:SCR_018830) core facility, service resource, access service resource Provides investigators with expertise, equipment, and space that is required to conduct innovative acoustic, behavioral, and cognitive research with focus on rigor, reproducibility, and maintaining the highest standards of animal welfare. USEDit, acoustic, behavioral, cognitive, expertise, equipment, space service, ABRF, ABRF is listed by: ABRF CoreMarketplace
is related to: USEDit
has parent organization: University of Nebraska; Nebraska; USA
NIGMS 1P20GM130447 Restricted ABRF_1021 https://coremarketplace.org/?FacilityID=1021 SCR_018830 UNMC Animal Behavior Core, University of Nebraska Medical Center UNMC Animal Behavior Core, Animal Behavior Core 2026-08-01 12:12:44 4
Louisiana State University Pennington Biomedical Research Center Genomics Core Facility
 
Resource Report
Resource Website
Louisiana State University Pennington Biomedical Research Center Genomics Core Facility (RRID:SCR_018675) GCF core facility, service resource, access service resource Provides services which include Sanger and next-generation DNA sequencing,DNA fragment analysis,qualitative and quantitative analysis of DNA, protein, and RNA samples, quantitative PCR, microarray RNA labeling, hybridization, and scanning robotics,bioinformatics.Individual and small group training and consultation services are offered for sequence analysis, real-time PCR, next-generation sequencing and microarray analysis. USEDit, Sanger sequencing, next generation DNA sequencing, DNA fragment analysis, quality, quantity, analysis, DNA, protein, RAN, qPCR, microarray RNA labeling, hybridization, scanning robotics, training, ABRF is listed by: ABRF CoreMarketplace NIGMS 1P30GM118430;
NIDDK 2P30DK072476
Open ABRF_434 https://coremarketplace.org/?FacilityID=434 SCR_018675 Pennington Genomics Core, Pennington Biomedical Research Center Genomics Core 2026-08-01 12:12:43 0
Massachusetts Institute of Technology Swanson Biotechnology Center Nanotechnology Materials Core Facility
 
Resource Report
Resource Website
10+ mentions
Massachusetts Institute of Technology Swanson Biotechnology Center Nanotechnology Materials Core Facility (RRID:SCR_018674) core facility, service resource, access service resource Provides instruments for materials and nanomaterials research and full service TEM and cryoTEM sample preparation and imaging. Conducts CLEM and cryoCLEM workflows utilizing cryoFluorescence, cryoSEM and cryoFIB with focus on bio samples.Provides equipment and expertise to work with nanomaterials for characterization and imaging purpose. Core imaging capabilities include high performance field emission transmission electron microscope equipped with STEM, EELS, EDS and cryo-imaging, high performance field emission scanning electron microscope and focused ion beam equipped with STEM and cryo-imaging, cryo-fluorescent confocal microscope for CLEM workflows, and atomic force microscope equipped with liquid cell. Instrumentation for material characterization includes high throughputdynamic light scattering, nanoparticle sizing and counting, and rheometry. USEDit, material research, nanomaterial, cryo imaging, cryo fluorescenct confocal microscope, cryoSEM, cryoFIB, imaging, electron microscope, atomic force microscope, light scattering, nanoparticle sizing, rheometry, ABRF, ABRF is listed by: ABRF CoreMarketplace
has parent organization: Massachusetts Institute of Technology; Massachusetts; USA;
NCI P30 CA14051 Open ABRF_767 https://coremarketplace.org/?FacilityID=767, https://ki.mit.edu/sbc/nanocore/fees SCR_018674 Bio and CryoEM in the Nanotechnology Materials Core 2026-08-01 12:12:44 27
Maryland University School of Medicine Flow Cytometry and Mass Cytometry Core Facility
 
Resource Report
Resource Website
1+ mentions
Maryland University School of Medicine Flow Cytometry and Mass Cytometry Core Facility (RRID:SCR_018835) core facility, service resource, access service resource Core provides researchers with flow cytometry and mass cytometry services and equipment and help from highly trained and experienced staff. USEDit, flow cytometry, mass spectrometry, ABRF, ABRF is listed by: ABRF CoreMarketplace
is related to: USEDit
has parent organization: University of Maryland School of Medicine; Maryland; USA
Restricted ABRF_845 https://coremarketplace.org/?FacilityID=845 SCR_018835 Maryland University School of Medicine Flow Cytometry and Mass Cytometry Core, CVD Flow Cytometry and Mass Cytometry Core 2026-08-01 12:12:28 1
SCIEX:: API 5000 Triple Quadrupole Liquid Chromatography Mass Spectrometer System
 
Resource Report
Resource Website
SCIEX:: API 5000 Triple Quadrupole Liquid Chromatography Mass Spectrometer System (RRID:SCR_018437) instrument resource Triple quadrupole liquid chromatography mass spectrometer for analysis of bioanalytical samples. It can be used for DMPK and ADME studies.API 5000 LC/MS/MS System delivers the lowest limits of detection for the most demanding DMPK and ADME studies. Triple Quadrupole Liquid Chromatography Mass Spectrometer System, Instrument, Equipment, API, USEDit, ABRF is listed by: USEDit Commercially available SCR_019569, SCR_018450, Model_Number_API 5000 SCR_018437 2026-08-01 12:12:42 0
Harvard Center for Biological Imaging Core Facility
 
Resource Report
Resource Website
10+ mentions
Harvard Center for Biological Imaging Core Facility (RRID:SCR_018673) HCBI core facility, service resource, access service resource Microscopy facility. Contains microscopes including confocal, super-resolution, multi-photon, light sheet, live cell imaging, high-content screening, slide scanning, laser dissection and macroscopy stations. Features wet lab space, eukaryotic and prokaryotic incubation, and access to nearby animal care facilities for wide range of species.Services include Cell Imaging,Confocal Microscopy,Consultations,Data Analysis,Data Processing And Interpretation,High Content Screening,Laser Capture Microdissection,Microscopy,Multiphoton Microscopy,Optical Imaging,Slide Scanning,Whole Slide Imaging. USEDit, microscopy, cell imaging, confocal microscopy, consultation, data analysis, data processing, data interpretation, laser capture microdissection, microscopy, multiphoton microscopy, optical imaging, slide scanning, whole slide imaging, ABRF is listed by: ABRF CoreMarketplace ABRF_981 https://coremarketplace.org/?FacilityID=981 SCR_018673 Harvard Center for Biological Imaging, Harvard Center for Biological Imaging (HCBI) 2026-08-01 12:12:43 43
University of Hawaii at Manoa Cancer Center Genomics and Bioinformatics Shared Resource Core Facility
 
Resource Report
Resource Website
1+ mentions
University of Hawaii at Manoa Cancer Center Genomics and Bioinformatics Shared Resource Core Facility (RRID:SCR_019085) GBSR core facility, service resource, access service resource Core offers central service that uses genomic technologies combined with expert data analysis.Provides genomic analyses and bioinformatics as well as technical and scientific consultation,collaboration and initial data interpretation to all UH faculty with priority given to Cancer Center members with federal funding for cancer related projects. Offers expertise in molecular biology, genetics, genomics and bioinformatics, and can provide project planning, advice, and troubleshooting at all phases of the project.Genomic analysis services include DNA/RNA isolation, plating, and quality analysis, custom genotyping, Real-Time qPCR-based gene expression, copy number and methylation assays, pyrosequencing, Affymetrix and Illumina microarray based assays,Next Generation Sequencing on NextSeq500, iSeq100, NanoString nCounter analysis. USEDit, genomic technologies, data analysis, DNA/RNA isolation, plating, and quality analysis, custom genotyping, Real-Time qPCR-based gene expression, copy number and methylation assays, pyrosequencing, ABRF, ABRF is listed by: ABRF CoreMarketplace
has parent organization: University of Hawaii at Manoa
NCI P30 CA071789 Restricted ABRF_787 https://coremarketplace.org/?FacilityID=787 SCR_019085 UHCC Genomics and Bioinformatics Shared Resource, University of Hawaii at Manoa UHCC Genomics and Bioinformatics Shared Resource 2026-08-01 12:12:44 7
Kansas University Lawrence Biomolecular NMR Laboratory Core Facility
 
Resource Report
Resource Website
Kansas University Lawrence Biomolecular NMR Laboratory Core Facility (RRID:SCR_018671) core facility, service resource, access service resource NMR Laboratory maintains two high field NMR spectrometers in support of structural and dynamics studies of biomolecules. Its capabilities include determining high resolution structures, biological macromolecules, elucidation and structural mapping of protein-protein, protein-nucleic acid, protein-peptide, protein-drug interactions, and studies of dynamics of proteins and their complexes in solution. Laboratory staff provide advice,consultation, training,assistance and complete structure elucidation services.Staff is responsible for maintenance, upgrades, implementation of new NMR pulse sequences, and assisting local and remote users with technical problems.Equipped with Bruker Avance 800 MHz NMR instrument fitted with TCI cryoprobe and Bruker Avance III 600 MHz with variety of probes. USEDit, NMR spectrometer, high resoultion structure, biological macromolecule, structural mapping, protein, nucleic acid, peptide, drug, molecule interaction, consulation, training, ABRF is listed by: ABRF CoreMarketplace Open ABRF_251 https://coremarketplace.org/?FacilityID=251 SCR_018671 Biomolecular NMR Laboratory, Bio-NMR Laboratory, COBRE Biomolecular NMR Laboratory, Kansas University Lawrence Bio-NMR Laboratory 2026-08-01 12:12:42 0

Can't find your Tool?

We recommend that you click next to the search bar to check some helpful tips on searches and refine your search firstly. Alternatively, please register your tool with the SciCrunch Registry by adding a little information to a web form, logging in will enable users to create a provisional RRID, but it not required to submit.

Can't find the RRID you're searching for? X
X
  1. NIDDK Information Network Resources

    Welcome to the dkNET Resources search. From here you can search through a compilation of resources used by dkNET and see how data is organized within our community.

  2. Navigation

    You are currently on the Community Resources tab looking through categories and sources that dkNET has compiled. You can navigate through those categories from here or change to a different tab to execute your search through. Each tab gives a different perspective on data.

  3. Logging in and Registering

    If you have an account on dkNET then you can log in from here to get additional features in dkNET such as Collections, Saved Searches, and managing Resources.

  4. Searching

    Here is the search term that is being executed, you can type in anything you want to search for. Some tips to help searching:

    1. Use quotes around phrases you want to match exactly
    2. You can manually AND and OR terms to change how we search between words
    3. You can add "-" to terms to make sure no results return with that term in them (ex. Cerebellum -CA1)
    4. You can add "+" to terms to require they be in the data
    5. Using autocomplete specifies which branch of our semantics you with to search and can help refine your search
  5. Collections

    If you are logged into dkNET you can add data records to your collections to create custom spreadsheets across multiple sources of data.

  6. Facets

    Here are the facets that you can filter the data by.

  7. Further Questions

    If you have any further questions please check out our FAQs Page to ask questions and see our tutorials. Click this button to view this tutorial again.