Sharing Files: Your Duke

Last fall Duke University released its newest file sharing service known as Duke’s Box.  By partnering with Logo, Duke offers a cloud-storage service which is intuitive, secure, and easy to use. Login with with your NetID, share files with colleagues, and have confidence this cloud storage is compliant with all laws and regulations regarding data privacy and security.

Simple to Use

Duke’s Box is similar to other cloud-based file storage services which support collaboration, productivity, and synchronization.  You can drop and drag files, identify collaborators and set permissions (read, edit, comment, etc.) But unlike some services, such as Dropbox or Google Drive, Duke’s Box enables you to be in compliance with data privacy and security. Additionally, you can synchronize data across your devices, at your discretion and subject to Duke’s Security & Usage Practice restrictions

While you may have previously used OIT’s NAS (Network Attached Storage) file storage service known as CIFS for data storage,  Duke’s Box is easier to use -although it provides services for slightly different use-cases. For example, CIFS might be more useful if accessing large files (e.g. video files that are larger than 5 GB). However, CIFS doesn’t enable collaboration or sharing.  Depending on your needs you may still want to use your departmental or OIT NAS.  Either way, you can use both file storage services and each service is free.

Check out this 5 minute quick-start video:

50 GB of Space by Default

You are automatically provisioned 50 GB of space, but you can request more if you need more.  See the FAQ for details.

Individual file size limitations are throttled to less than 5 GB.  This means Duke’s Box may be less than ideal for sharing very large files. NAS services may be more appropriate for large files as the time to download or synchronize large files can become inconvenient.  But for many common file sharing cases, Duke’s Box is ideal, fast and convenient.

Documentation, Restrictions & Use

While you can store many types of files, there are best practices and restrictions you will want to review.  For example, Duke Medicine users are required to complete an online training module prior to account activation.

  • Security and Use, including more detail on Terms of Service, and example Data Types — including military and space data,  FERPA, HIPAA, etc.
  • Duke’s Box Usage Practices
  • OIT’s FAQ
  • Your Duke’s Box “Read Me” folder. duke box - readmeOIT has done a great job of providing quick and convenient documentation located right where you need it.  See the READ ME folder after you logon to Duke’s Box.

Sharing Your Data With Us

One of the many use-cases for Duke’s Box is a more convenient way for you to share your data with us.  As you know we welcome questions about data analysis and visualization. We know describing data can be difficult while sharing your dataset can clarify your question.   But sharing your data via email consumes a lot of resources — both yours and ours. Now there’s a better way; please share your data with us via Duke’s Box.

Steps for Sharing Your Data with DVS Consultants

How to Share your files - 5 second annimated loop

  1. Log into Duke’s Box  (Use the bluecontinuebutton) 
  2. Open your “homefolder
  3. Put your data in the “sharingfolder
  4. Use the “invite people” button (right-hand sidebar)
    • Using a consultant email address, invite the DVS Consultant to see your data.  (Don’t worry if you don’t have our email yet.  When you start your question at, an individual consultant will be back in touch.)

Visualization Exhibit and Events

2015-01-07 16.32.31

ps_logoThis semester, Duke is proud to host the Places & Spaces: Mapping Science exhibit, visiting from Indiana University.  Places & Spaces is a 10-year effort by Dr. Katy Börner (director of the Cyberinfrastructure for Network Science Center) to bring focus to visualization as a medium of scholarly communication.

20150105_105415The exhibit includes 100 maps from various disciplines and cultures and highlights myriad visualization techniques that have been used to communicate science to a broader public. The maps are divided among three spaces on campus: The Edge (newly opened on the first floor of Bostock Library), Smith Warehouse (on the second floor of Bay 11), and Gross Hall (on the third floor).

KatyBorner_weblrgTo celebrate the opening, Dr. Börner will visit Duke on January 21st and 22nd.  She will give a keynote presentation on Wednesday, January 21, at 4pm, in the Edge.  A reception will follow.

Additional events next week and throughout the semester will celebrate the exhibit and promote ongoing visualization work at Duke.  All events are open to the public!

Upcoming events

Wednesday, January 21

Thursday, January 22

Friday, January 23

More information about the exhibit and related events is available at: and

Please contact Angela Zoss ( with any questions or suggestions.  We hope you can join us in celebrating and enjoying this exhibit!

New Year- New Data and Visualization Lab!

Data and Visualization Services is happy to announce our new Data and Visualization Lab in Duke Libraries new Edge research space.  Located on the first floor of the Bostock Library, the Brandaleone Family Lab for Data and Visualization Services offers a dedicated space for researchers working on data driven projects.

The lab features three distinct areas for supporting data driven research.

Data and Visualization Lab Space

Data and Visualization Lab Computing Zone

Our lab space features twelve high end workstations with dual monitors with the latest software for data visualization, digital mapping, statistics, and qualitative research.  All of the machines have two dedicated displays to encourage collaborative work and data consultations.  Additionally, all twelve machines have a dedicated power port located conveniently under the edge of the table for powering a laptop or usb powered device.

Bloomberg Professional “Bar”


Since the launch of our Bloomberg terminals, we have seen a steady increase in both individual and team based usage of Bloomberg financial data.  Our three Bloomberg Professional workstations are now located on a dedicated “bar” across from our lab machines.  The  new Bloomberg zone will facilitate collaborate work and provide a base for groups such as the Duke University Investment Club and Duke Financial Economics Center.

Consult and Collaborative SpaceCollaboration Zone

Our third lab space provides a set of four rolling tables for small groups to collaborate or for projects that don’t require a fixed computing space.   An 85″ flat panel display near this zone features data visualizations and other data driven research projects at Duke.

Come See Us!

With ample natural light,  almost 24/7 availability, and a welcoming staff eager to work with you on your next data driven project.  We look forward to working with you in the upcoming year!

Enter the 2015 Student Data Visualization Contest

contest_blog-01Calling all Duke undergrad and grad students! Have you worked on a course or research project that included some kind of visualization? Maybe you made a map for a history class paper. Maybe you invented a new type of chart to summarize the results of your experiment. Maybe you played around with an infographic builder just for fun.

Now is the time to start thinking about submitting those visualizations to the Duke Student Data Visualization Contest. It’s easy — just grab a screenshot or export an image of your visualization, write up a short description explaining how you made it, and submit it using our Sakai project site (search for “2015 DataVis Contest”). The deadline is right after finals this fall, so just block in a little extra time at the end of the semester once you’re done with your final assignments and projects.

Not sure what would work as a good submission? Check out our Flickr gallery with examples from the past two years.

Not sure if you’re eligible? If were a Duke student (that is, enrolled in a degree granting program, so no post-docs) any time during 2014, and you did the work while you were a student, you’re golden!

Want to know more about the technical details and submission instructions? Check out the full contest instruction site.

Story Maps

Telling Stories with Maps

StoryMap Pic1“Story maps” are a popular method of telling place-themed stories and engaging with your audience over the web. Story maps are highly interactive, allowing users to follow along a path or time-line with links to content along the way. They’re also a great way to visualize current events and news topics in a way that brings perspective and context to important issues. As a student or researcher, you can use maps to tell a story about your research study area. In that sense, they can be a great tool for drawing attention to your work, and you could consider it another form of social media.

Creating a web map may seem like a challenge if you’ve never done it before, but there are several tools available online that can quickly and easily generate a story map. For this post, I’ll introduce you to two different types of story maps and suggest some free tools for creating your own.

Mapping Places or Events 

Story maps that cover a series of events are useful for contextualizing news events, giving an online tour, or linking to almost any kind of location specific information. Story maps of this style are fun to use because they typically provide both a map and multimedia content. The user accesses the information in an interactive format -which is a great way for your message to sink in!

For example, I created this story map that links historic building photos of the Construction of Duke University to their locations on a map.

View the full size map here.

Some applications for this type of story map are publishing information about research areas, adding new points of access for digital humanities, or documenting travel or a field expedition.

Thematic Maps

Another popular style of story map is one that presents a series of thematic maps. These types of maps often depict how changes have occurred over time in a place or perhaps the unfolding of a news event. Side-by-side comparison of maps can also be a visually interesting way to illustrate an important issue. An interesting comparison map might show US Census demographic data from different census years in a city to show how people have changed.

This map illustrates how manufacturing jobs have changed around Flint Michigan from 1990 to 2010.

Click here for full size.

There are also some really cool interactive features out there for this style of map like a tabbed viewer, a swipe or slide function between two different maps, and ESRI’s SpyGlass.

Create Your Own!

Some great tools are available to the Duke community and freely on the web that let you create these types of “story maps” with minimal training. Here are three tools you can use and what each does best…

StoryMap JS is a completely free and open access tool by the Knight Lab at Northwestern University. A Google account is necessary because StoryMap JS actually saves the maps you create in the recent folder of your Google Drive. StoryMap JS is incredibly easy to use, too. It has a very simple and intuitive interface that will let you start making your map in minutes. You can also use StoryMap JS for non-cartographic visual materials, and there is a cool off-shoot that allows your to instantly map 20 recent geo-tagged Instagram photos from any user account. Best Uses: Try using StoryMap JS when you’re telling a story that unfolds over a path or timeline. It’s also great for linking to media like photos or YouTube content.

Social Explorer You may have used Social Explorer before to gather US Census data, but you can also create thematic maps that you can share or embed in a website. With your Duke credentials, you have access to the Professional Edition. The data is pre-loaded, so you’re just a few clicks away from a beautifully shaded thematic map of US Census Data that you can share over the web. The map interface is user-friendly and has a “Change Layout” button at the bottom center that creates side-by-side and swipe comparison maps. You can also create an annotated presentation that let’s the user cycle through a series of maps. Here is a quick example of a map presentation I made in Social Explorer. Best Uses: Social Explorer’s best use is for mapping US Census data. The “Tell a Story” function allows you to join graphs and other media to your map and create interactive presentation slides.

ESRI ArcGIS Online For more advanced users, or just those looking for more customization options, ArcGIS Online offers an abundance of tools and templates for creating attractive and engaging map presentations. ArcGIS Online Story Maps require an account with ESRI. You can sign up for a free public account, or, for more advanced features, you can request a free organizational account that is available to the Duke community. To take advantage of all ArcGIS Online has to offer, you will need to familiarize yourself with the how to use it. Once you’ve made a few maps, you can load maps and multimedia content into any of ESRI’s Story Map Apps. Take a look at this gallery of to view some examples of what you can do with Story Maps in ArcGIS Online. Even though there is a bit of a learning curve to ArcGIS Online, the pay off is huge.

Here is a customized slider map I made using the Story Map Swipe App that shows changes in North Carolina’s Congressional District Boundaries following the 2012 redistricting. Use the slider to swipe between views.

View the full size map here.

Best Uses: Fully customized story maps of any type. Great for telling place-based stories and presenting a series of thematic maps complete with multimedia content.

I hope you enjoyed viewing some of these story maps! I’m sure you can see that there are many different uses for this type of media. If you’ve made a cool story map, feel free to share it with us in the comments!

Welcome to the Current Population Statistics on the Web

Duke University recently acquired access to the online version of its Current Population Statistics (CPS) CD-ROM collection to facilitate easy access to CPS data (Unicon’s CPS Utilities on the Web).  This blog post will walk through the basic data extraction process.  The interface is comparable to that provided by the CD, and users of this collection will find the interface and powerful.  Please note that the instructions provided on the web site are very important to read, particularly for those unfamiliar with the CPS CD version.

Create an Account

When you visit the Unicon site (, click the “CPS on Web” link to the left, then click the Register button.  You will have to enter some information to complete the registration process.

Once complete, submit the information.  Once the registration window closes, choose the CPS series (or month) you wish to query, and log in to the system.


1Navigation and Data Extraction

Once logged in, you will see a popup window like that shown in the image to the right.  For a typical data extraction, the following steps are advised.

1) First, click the Set Option button and chang4e the timeout to at least 300 seconds.  This will ensure successful data extraction.

2) Next, click the Make an Extraction button, followed by the Request Editor button on the next page.  You should see a page similar to that below (all variables used in your prior extraction will be listed).

23) Remove any variables you do not need.  Next, make certain the variable you wish to include is selected at the top and click “Add Variable(s).”  Alternatively, if you already know the names of the variables, you may type them into the boxes provided on the page.

4) Once all variables are added to the selection, click Continue.  On the following page, specify the output format for the dataset.  Once complete, be certain to select one or more years (at the top).  After you have selected years, click the Extract button.

5) On the following page, you will be presented with a list of variables by year.  As variables change across years in some cases, not all selected variables may be present for each year.  When selecting variables, checking the “View Documentation” checkbox at the top will allow for browsing of available years.


Other Useful Tools

- The Make a Table button allows for the construction of crosstabs of observations, means, and other statistics.  This is helpful if the goal is to locate variables for analysis or if there is a choice between two or more variables.

- The Make a Graph button is also useful for data exploration.  The program provides the ability to construct hsitograms, line charts, scatter ploys, pie charts, and bar charts.  Basic summaries of a variable can also be generated from this page.

- If your data need to be weighted to represent the US population, be certain to select the appropriate weight under the Apply Weights button before extraction.

- Subsets of individuals can also be produced under the Specify Universe button.  For example, a specific race or gender can be specified to reduce the sample to what you need.

Meet Data and Visualization Services

Data and Visualization Services LogoThe fall of 2014 marks the completion of the first five years of the libraries’ Data and GIS Services Department. In 2009, when Mark Thomas and I formed the department, the name accurately reflected our staffing and services as Mark focused on GIS-related issues and I focused on data-related issues. As an increasing number of scholars have embraced data-driven research over the last five years , our services and staff have grown to support an increasingly diverse set of research needs at Duke.

In 2010-2011 academic year, the Libraries launched services around data management and sharing plans in anticipation of new funding rules surrounding research data. In 2012, the library expanded data services in collaboration with OIT’s Research Computing to offer one of the first data visualization consulting positions in the country. In 2013 and 2014, we expanded services and staff to include consultations on research computing and big data.

At this year’s Data and GIS Services annual retreat, we decided that the time has come to change the name of the department to reflect the broader range of staff and consulting services available. While we continue to support our traditional dimensions of data and GIS research, we intend to support a range of data needs across the following five themes:

Data and Visualization Services Themes

Data Sources
Get the data you need. Data and Visualization Services consultants can help you locate and license a diverse range of data sources.  We also provide long term storage for Duke data collections through Duke’s institutional repository.

Data Storage and Management
Need help on a data management plan, want advice on archiving, or struggling with “big data” analytics?  We are happy to consult!

Data Cleaning and Analysis
From Google Refine to the command line, we can help with data cleaning and analysis.

Mapping and GIS
Mapping and spatial analysis remain a core service for the data and visualization program.

Data Visualization
Our data visualization service can help with the most effective way to represent your data for both analysis and communication.


We appreciate the research community’s support as we’ve grown over the last five years.  We look forward to working with you on a larger range of data challenges in the future!

Mapping in Google Spreadsheets

Screen Shot 2014-06-04 at 4.33.57 PMHere at Data & GIS Services, we love finding new ways to map things.  Earlier this semester I was researching how the Sheets tool in Google Drive could be used as a quick and easy visualization tool when I re-discovered its simple map functionality.  While there are plenty of more powerful mapping tools if you want to have a lot of features (e.g., ArcGIS, QGIS, Google Fusion Tables, Google Earth, GeoCommons, Tableau, CartoDB), you might consider just sticking with a spreadsheet for some of your simpler projects.

I’ve created a few examples in a public Google Sheet, so you can see what the data and final maps look like.  If you’d like to try creating these maps yourself, you can use this template (you’ll have to log into your Google account first, and then click on the “Use this template” button to get your own copy of the spreadsheet).

Organizing Your Data

The main thing to remember when trying to create any map or chart in a Google sheet is that the tool is very particular about the order of columns.  For any map, you will need (exactly) two columns.  According to the error message that pops up if your columns are problematic: “The first column should contain location names or addresses. The second column should contain numeric values.”

Of course, I was curious about what counts as “location names” and wanted to test the limits of this GeoMap chart.  If you have any experience with the Google Charts API, you might expect the Google Sheet GeoMap chart to work like the Geo Chart offered there.  In the spreadsheet, however, you have only a small set of options compared to the charts API.  You do have two map options — a “region” (or choropleth) map and a “marker” (or proportional symbol) map — but the choices for color shading and bubble size are built-in or limited.

Screen Shot 2014-06-04 at 4.36.54 PMRegion maps (Choropleths)

Region maps are fairly restrictive, because Google needs to know the exact boundary of the country or state that you’re interested in.  In a nutshell, a region map can either use country names (or abbreviations) or state names (or abbreviations).  The ISO 3166-1 alpha-2 codes seem to work exceptionally well for countries (blazing fast speeds!), but the full country name works well, too.  For US states, I also recommend the two letter state abbreviation instead of the full state name. If you ever want to switch the map from “region” to “marker”, the abbreviations are much more specific than the name of the state.  (For example, when I switch my “2008 US pres election” map to marker, Washington state turns into a bubble over Washington DC.)

Screen Shot 2014-06-04 at 4.37.57 PMMarker maps (Proportional symbol maps)

Marker maps, on the other hand, allow for much more flexibility.  In fact, the marker map in Google Sheets will actually geocode street addresses for you.  In general, the marker map will work best if the first column (the location column) includes information that is as specific as possible.  As I mentioned before, the word “Washington” will go through a search engine and will get matched to Washington DC before Washington state.  Same with New York.  But the marker map will basically do the search on any text, so the spreadsheet cell can say “NY”, or “100 State Street, Ithaca, NY”, or even the specific latitude and longitude of a place. (See the “World Capitals with lat/lon” sheet; I just put latitude and longitude in a single column, separated with a comma.)  As long as the location information is in a single column, it should work, but the more specific the information is, the better.


Screen Shot 2014-06-04 at 4.31.56 PMWhen you have your data ready and want to create a map, just select the correct two columns in your spreadsheet, making sure that the first one has appropriate location information and the second one has some kind of numerical data.  Then click on the “Insert” menu and go down to “Chart…”  You’ll get the chart editor.  The first screen will be the “Start” tab, and Google will try to guess what chart you’re trying to use.  It probably won’t guess a map on the first try, so just click on the “Charts” tab at the top to manually select a map.  Map is one of the lower options on the left hand side, and then you’ll be given a choice between the regions and markers maps.  After you select the map, you can either stick with the defaults or go straight to the final tab, “Customize,” to change the colors or to zoom your map into a different region.  (NB: As far as I can tell, the only regions that actually work are “World,” “United States,” “Europe,” and “Asia”.)

Screen Shot 2014-06-04 at 4.33.35 PMThe default color scale goes from red to white to green.  You’ll notice that the maps automatically have a “mid” value for the color.  If you’d rather go straight from white to a dark color, just choose something in the middle for the “mid” color.

And there you have it!  You can’t change anything beyond the region and the colors, so once you’ve customized those you can click “Update” and check out your map.  Don’t like something?  Click on the map and a little arrow will appear in the upper right corner.  Click there to open the menu, then click on “Advanced edit…” to get back to the chart editor.  If you want a bigger version of the map, you can select “Move to own sheet…” from that same menu.

Pros and Cons

So, what are these maps good for?  Well, firstly, they’re great if you have state or country data and you want a really quick view of the trends or errors in the data.  Maybe you have a country missing and you didn’t even realize it.  Maybe one of the values has an extra zero at the end and is much larger than expected.  This kind of quick and dirty map might be exactly what you need to do some initial exploration of your data, all while staying in a spreadsheet program.

Another good use of this tool is to make a map where you need to geocode addresses but also have proportional symbols.  Google Fusion Tables will geocode addresses for you, but it is best for point maps where all the points are the same size or for density maps that calculate how tightly clusters those points are.  If you want the points to be sized (and colored) according to a data variable, this is possibly the easiest geocoder I’ve found.  It’ll take a while to search for all of the locations, though, and there is probably an upper limit of a couple of hundred rows.

If this isn’t the tool for you, don’t despair!  Make an appointment through email ( or stop in to see us (walk-in schedule) to learn about other mapping tools, or you can even check out these 7 Ways to Make a Google Map Using Spreadsheet Data.

Top 10 List – Data and GIS Edition

As we begin our summer in Data and GIS Services, we spend this post reflecting back on some of the services, software, and tools that made data work this spring more productive and more visible.  We proudly present our top 10 list for the Spring 2014 semster:

10. DMPTool
While we enjoy working directly with researchers crafting data management plans, we realize that some data management needs arise outside of consultation hours.  Fortunately, the Data Management Planning Tool (DMPTool) is there 24/7 to provide targeted guidance on data management plans for a range of granting agencies.

9. Fusion Tables
A database in the cloud that allows you to query and visualize your data, Fusion Tables has proven a powerful tool for researchers who need database functionality but don’t have time for a full featured database.  We’ve worked with many groups to map their data in the cloud; see the Digital Projects blog for an example.  Fusion Tables is a regular workshop in Data and GIS.

8. Open Refine
You could learn the UNIX command line and a scripting language to clean your data, but Open Refine opens data cleaning to a wider audience that is more concerned with simplicity than syntax.  Open Refine is also a regular workshop in Data and GIS.

7. R and RStudio
A programming language that excels at statistics and data visualization, R offers a powerful, open source solution to running statistics and visualizing complex data.  RStudio provides a clean, full-featured development environment for R that greatly enhances the analysis process.

6. Tableau Public
Need a quick, interactive data visualization that you can share with a wide audience?  Tableau Public excels at producing dynamic data visualizations from a range of different datasets and provides intuitive controls for letting your audience explore the data.

5. ArcOnline
ArcGIS has long been a core piece of software for researchers working with digital maps.  ArcOnline extends the rich mapping features of ArcGIS into the cloud, allowing a wider audience to share and build mapping projects.

4. Pandas
A Python library that brings data analysis and modeling to the Python scripting language, Pandas brings the ease and power of Python to a range of data management and analysis challenges.

3. RAW
Paste in your spreadsheet data, choose a layout, drag and drop your variables… and your visualization is ready.  Raw makes it easy to go from data to visualization using an intuitive, minimal interface.

2. Stata 13
Another core piece of software in the Data and GIS Lab (and at Duke), Stata 13 brought new features and flexibility (automatic memory management — “hello big data”) that were greatly appreciated by Duke researchers.

1. R Markdown
While many librarians tell people to “document your work,” R Markdown makes it easy to document your research data, explain results, and embed your data visualizations using a minimal markup language that works in any text editor and ties nicely into the R programming language.   For pulling it all together, R Markdown is number one in our top ten list!

We hope you’ve enjoyed the list!  If you are interested in these or other data tools and techniques, please contact us at!

Duke welcomes Francesca Samsel, April 17-18

samselOn Thursday, April 17 and Friday, April 18, Duke University will host a visit from Francesca Samsel, a visual artist who uses technology to develop work on the fulcrum between art and science.  Francesca works as Research Assistant Faculty in the Computer Science department of the University of Texas at El Paso, is a Research Affiliate with the Center for Agile Technologies at the University of Texas at Austin, and is also a long-term collaborating partner with Jim Ahrens’ Visualization Research Team at Los Alamos National Labs.

Francesca will give two presentations during her visit.  A presentation on Thursday afternoon for the Media Arts + Sciences Rendezvous series will address the humanities community and present recommendations for work with scientists and visualization teams.  A presentation over lunchtime on Friday for the Visualization Friday Forum will describe a variety of collaborations with scientific teams and address the benefits that can come from incorporating artists into a scientific research team.

Francesca’s visit is sponsored by Information Science + Information Studies (ISIS), with additional support from Media Arts + Sciences.  We hope you can join us for one or both of the presentations!

Creating Mutually-Beneficial Multiple-Outcome Collaborations
Thursday, April 17
4:15 pm (talk starts at 4:30)
Smith Warehouse, Bay 10 classroom (2nd floor – enter through Bays 9 or 11)
Drinks and light snacks provided

Many artists draw on the scientific community as sources for their work. Research community are exploding with rich material connected to our contemporary lives.  Given that art – science collaborations require weeks, realistically months, in a lab, shoulder to shoulder with the scientists, access is a huge barrier.  Francesca Samsel will discuss her history of collaborations with visualization teams and scientists, what worked, what didn’t and how to get in the door.

An Artist, No Thanks! Employing Design and Color Theory to Increase Clarity, Perception and Depth within Scientific Visualization
Friday, April 18, 2014
12:00p.m. to 1:00p.m. (lunch provided)
Levine Science Research Center, Room D106 (near the Research Drive entrance), in conjunction with the Visualization Friday Forum
Live stream

Francesca Samsel will discuss her ongoing work with Los Alamos National Labs, Research Visualization Team and why they hired an artist to help them design the next generation of scientific visualization tools.  Their recent work focuses on developing algorithmically generated color maps to extract the maximum perceivable detail within exa-scale data sets. She will also discuss collaborations with the Visualization Division of the Texas Advanced Computing Center; hydrogeologists, neurologists, environmental research teams and more.

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