sci-abstract

Business

Use when writing the two front-matter artifacts Science (AAAS) demands — the one-sentence summary for the table of contents and the ≤125-word single-paragraph abstract — both readable by any scientist and both leading with the quantified advance rather than the method. Late-stage polish skill for the flagship AAAS weekly.

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Abstract & One-Sentence Summary (sci-abstract)

When to trigger

Significance, framing, and format are settled (do this late).
The abstract reads like a method recap with no result.
There is no one-sentence summary, or it restates the title.
The abstract exceeds ~125 words or is dense with jargon/acronyms.

Two distinct artifacts Science requires

1. One-sentence summary (≤ ~125 characters)

A single declarative sentence for the table of contents and editors. It is not the title and not the first line of the abstract.

States the finding and its general point.
No undefined acronyms; readable by any scientist.
Active voice. Example shape: "A single mutation rewires metabolism, explaining cold tolerance across insects."

2. Abstract (≈ 100–125 words, unstructured prose)

Science abstracts are short, single-paragraph, no subheadings. Target the educated general scientist, not the subfield.

Recommended five-move structure (no labels in the text):

Context / stakes (1 sentence) — the broad problem.
Gap / question (1 sentence) — what was unknown.
What we did (1 sentence) — approach, in plain terms.
Key result, quantified (1–2 sentences) — the advance, with numbers.
Implication (1 sentence) — why a broad community should care.

Hard constraints

≤ ~125 words (check the current author guidelines for the exact cap; treat 125 as the ceiling).
No subheadings, no citations, no figure/table references in the abstract.
Define any acronym on first use, or avoid it.
At least one quantified result — not "significantly increased" but "increased 2.4-fold (P < 0.001)".
First sentence is comprehensible to a scientist outside the field.

Jargon blacklist (rewrite on sight)

"Herein we report…", "Importantly,", "Interestingly,", "Notably,"
Strings of ≥2 undefined acronyms in one sentence.
"elucidate", "delineate", "interrogate", "leverage" as filler verbs.
Hedging stacks: "may potentially suggest that it could…".

Quantification check

Every claim of effect must carry a number somewhere in the paper, and the headline effect should be in the abstract: magnitude + unit + uncertainty (CI or P). If the abstract has zero numbers, it is not finished.

What the editorial board reads first

Because Science triages most submissions in-house before any referee sees them, your one-sentence summary and abstract are frequently the only prose a professional editor reads before deciding to read further. Calibrate to that reality:

Editor's silent question	Where they look	What kills it
"Would our general readership care?"	one-sentence summary	a subfield claim only specialists parse
"Is there a result, or just an approach?"	abstract sentences 3–4	method recap with no quantified finding
"Is this overstated?"	abstract last sentence	an implication asserted, not demonstrated
"Can I send this summary to a referee verbatim?"	the whole summary	undefined acronyms, hedging stacks

The abstract is one unstructured paragraph — unlike a structured clinical abstract (Background/Methods/Results/Conclusions). Do not import a NEJM/JAMA structured-abstract template; Science runs continuous prose with no labels.

Worked micro-example (illustrative)

A team finds that a single gut bacterium's enzyme degrades a common drug, explaining why some patients respond and others do not. Walk the moves (numbers illustrative only):

One-sentence summary (≈110 chars): "A single gut-microbial enzyme inactivates a widely used drug, explaining variable patient response."
Abstract (≈120 words, prose): Stake — drug response varies unpredictably between patients. Gap — the gut microbiome was suspected but no mechanism was known. Approach — we screened 412 isolates and reconstituted the activity in vitro. Result — one enzyme reduced active-drug levels by 73% (95% CI 65–80%; P < 0.001), and its abundance predicted response in a 96-patient cohort (AUC 0.84). Implication — microbial enzymology may be a general, modifiable axis of drug variability.

Notice: the headline number (73%, CI, P) sits in the abstract, not buried in a figure; the last sentence reaches a broad audience (pharmacology, microbiology, clinical medicine) without claiming proof of causation in humans.

Referee and editor pushback patterns

Pushback you will hear	The Science-specific fix
"The summary just restates the title."	Make it state the consequence, not the topic — the lesson a non-specialist takes away.
"I read the abstract and still don't know the result."	Put the quantified headline (magnitude + uncertainty) in sentences 4–5; delete one context sentence to fit.
"Reads like an abstract for a specialist journal."	Replace the field-internal opener with the broad stake; cut acronym chains.
"The last line over-claims."	Hedge to what the data show; "may be a general axis" not "is the cause" — confirm the claim survives `sci-fit`.

Calibration anchors (confirm against current author guidelines)

One-sentence summary: target ≤ ~125 characters; it is a distinct required field, not the first abstract line.
Abstract: target ≤ ~125 words, single paragraph, no subheadings, no citations, no figure references.
Exactly one paragraph — the convention is firm even as the word ceiling may shift; verify the current cap.
At least one quantified headline effect with uncertainty; zero-number abstracts are unfinished.

Output format

【One-sentence summary】 "..." (char count: N ≤ 125)
【Abstract】 single paragraph (word count: N ≤ 125)
【Five moves present?】 context / gap / approach / quantified result / implication
【Quantified headline result?】 yes/no + the number
【Jargon hits removed】 [...]
【Next】 sci-citation

Anti-patterns

Do not make the one-sentence summary a paraphrase of the title.
Do not open the abstract with method or organism; open with the stake.
Do not end on "further work is needed" — end on the implication.
Do not pad to sound comprehensive; the cap is a feature.