January 08, 2020
  1. Research Articles (up to ~5000 words, including references, notes and captions, or ~5 printed pages) are expected to present a major advance. Research Articles include an abstract, an introduction, up to six figures or tables, sections with brief subheadings, and upwards of 20 references. Materials and Methods should usually be included in supplementary materials, which should also include information needed to support the paper's conclusions.
  2. Reports (up to 5000 words including references, notes and captions or ~3 printed pages) present important new research results of broad significance. Reports should include an abstract, an introductory paragraph, up to four figures or tables, and about 30 references. Materials and Methods should usually be included in supplementary materials, which should also include information needed to support the paper's conclusions
  3. Reviews (up to 3500 words including references, notes and captions) describe new developments of interdisciplinary significance and highlight future directions. They include an abstract, an introduction that outlines the main theme, brief subheadings, and an outline of important unresolved questions. A maximum of 40 references is suggested. Most Reviews are solicited by the editors, but unsolicited submissions may also be considered.