Thank you for checking on the format for notes in an EBAE-Nemeth transcription. You're right that you should use the Nemeth asterisk ([simbraille]@#[/simbraille]). This and more information is contained in Nemeth Code Rule VII. Please make particular note of section 48:
[quote=]a. When a reference sign which calls attention to or introduces a footnote is attached to a word or mathematical expression, the reference symbol must follow that word or expression with a space between. If such a reference sign is unattached its position relative to its surrounding material must be preserved, and a space must be left on either side of the reference symbol. However, if there is punctuation which applies to such a reference, no space should be left between the reference symbol and the punctuation mark which applies to it.
b. ... All reference symbols, whether or not they call attention to or introduce a footnote, must be spaced away from the words to which they apply.
c. The placement and indention of footnotes are subject to the rules for footnotes in the "Code of Braille Textbook Formats and Techniques." [--> which now means, placement and indention of footnotes should follow the guidelines of Braille Formats: Principles of Print-to-Braille Transcription, 2011.][/quote]
If you have questions as you move further into this Life Sciences book, please do not hesitate to share them.