AJCN EB Program 2010
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Information for Authors

THE AMERICAN JOURNAL OF CLINICAL NUTRITION

MANUSCRIPT DIGITAL FILES

Initial manuscript submissions
Revised manuscript submissions
Formatting
Image resolution
Fonts
Color space
Additional information on preparing digital art files

Initial manuscript submissions
Prepare your manuscript, including tables, in Word 6.0. (Please note: the Word 2007.docx format is not accepted.) Tables must be included in the text file; do not submit tables in separate files. Submit each figure in a separate file. Preferred formats for image (figure) files are PDF, TIFF, or EPS. Files must conform to the minimum-resolution specifications listed under Image resolution. If you wish to include OSM (see Supplemental material) with your submission, it should be clearly labeled and included at the end of the manuscript file, after the references, tables, and figures. OSM pages must be marked with an "Online Supplemental Material" header on each page. Online-only figures and tables should be labeled "Supplemental Figure 1," "Supplemental Table 1," etc.
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Revised manuscript submissions
Submit manuscript text, including tables, in a Word 6.0.doc file (please note: the Word 2007.docx file format is not accepted); tables must be included in the text file; do not submit tables in separate files. Submit each figure in a separate file. Preferred formats for image (figure) files are PDF, TIFF, or EPS. Files must conform to the minimum-resolution specifications listed under Image resolution. OSM should be included at the end of the Word file, after references, tables, and figure legends. Figures that are part of the regular manuscript submission and not part of OSM must be uploaded as separate files. OSM pages must be marked with an "Online Supplemental Material" header on each page. Online-only figures and tables should be labeled "Supplemental Figure 1," "Supplemental Table 1," etc. In addition to including OSM at the end of the manuscript file as indicated above, upload the OSM in Word format as supplemental file(s) in the upload area. OSM files will not be edited; therefore, please be sure that The American Journal of Clinical Nutrition format is used and that the files are accurate.
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Formatting
Microsoft PowerPoint (PPT) and Word (DOC) files can be acceptable if properly prepared and submitted in their native format. When creating print-quality files in MS Office applications, follow these general guidelines:

  1. Do not use pattern or texture fills in graphics. Instead use solid fills or percentage screens that will be effectively converted to vector images during file conversion.
  2. Artwork placed with any MS Office application should be of acceptable minimum resolution for print production (see "Image resolution").
  3. When inserting pictures or images into files, be sure to select "insert" and not "insert link," which will not properly embed the hi-res image into the MS Office file.
  4. Do not reduce or enlarge the images after placement within the MS Office file. Otherwise the image quality will be affected.
  5. A separate file should be submitted for each figure. Make sure that any multi-panel figures (i.e., figures with parts labeled A, B, C, D, etc.) are assembled into one file. Rather than sending four files (Figure 1A, Figure 1B, Figure 1C, Figure 1D), the four parts should be assembled into one piece and supplied as one file.
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Image resolution
Files at publication size must conform to the minimum-resolution specifications listed in the figure below:
Line art 1000 dpi, combination halftones 600 dpi, halftones 300 dpi
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Fonts
It is recommended to use standard fonts in order to avoid potential problems with font substitution or embedding problems. Acceptable fonts include Arial, Helvetica, Times Roman, Symbol, Mathematical PI, and European PI. All other fonts, if not embedded, may be replaced, resulting in data loss or realignment.
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Color space
All digital art submitted, including black and white figures, must be bitmap (Monochrome), grayscale, RGP, or CMYK. Color files should be supplied in RGB color whenever possible and should have an ICC profile applied. RGB best utilizes the color projection capabilities of computer display devices and has become the standard color space for displaying images for the online journal. Authors are strongly encouraged to submit color figures in RGB format. Note that the RGB color space is significantly larger than the process CMYK color space. Therefore, depending upon the content of the image, color shifts may occur when converting to CMYK and appear in print if colors in the original image are outside the process CMYK gamut.
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Additional information on preparing digital art files
For more information regarding Digital Art Preparation and Submissions, see http://dx.sheridan.com/guidelines/digital_art.html.
Please note the following:

  1. Each figure file should be clearly identified by a figure number and panel letter, if appropriate, in the space provided on the file upload screen.
  2. If a figure is very small in the system-generated PDF file, the resolution of the figure file was not high enough. A higher resolution figure should be uploaded before the PDF is approved.
  3. Tables must be included in the text file; do not submit tables in separate files.
  4. To check/preflight your digital art files before submission, see http://dx.sheridan.com/onl/rgb/.
Authors are requested to create and keep high-resolution print copies of the figures, in the event that they are needed for publication purposes.
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