INTRODUCTION
Readers expect to learn about your research topic here and editors mine for potential referees from the references cited. Therefore, read the references you use and make sure they are relevant to supporting your statements.
Introductions typically take on a funnel shape – it starts broad with a general background on who has done what before narrowing to your specific research question and goal. Explain why anyone should care about your work. Draw them in with a puzzling issue, a thought-provoking question, or an unmet need. Guide the reader by pointing out the most interesting and important aspects of your work.
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Sloppiness hampers reading.
RESULTS

An effective paper describes the findings, justifies why you performed the experiments and presents the results in a logical order, not necessarily in the order you conducted your experiments. Readers who must guess and hunt down details will be frustrated. Present crucial information up front, not in the Supplementary or Methods section.
Organize your figure panels so they appear in sequence matching the written narrative. Keep your figures clean and be mindful of how you use colour! Overly colourful figures are a strain to read for both normal and colour-blind individuals. Use colour sparingly to highlight key points.
Most people will likely not read your paper from start to finish but will read the figures and captions. Good captions lay out all the critical information in an intuitive and easy to understand way and guide the reader through the most salient points in the figure. It also tells the reader clearly how many times you repeated the work and how representative is each image.
Results form the core of your paper because it tells people the outcome of your research. Make sure you got every detail down correctly and make sure you have saved all the original raw data files in a safe place. The worst nightmare you can have is the failure to produce original files when someone accuses you of fraud or misconduct.
