Your English writing platform
Discover LudwigExact(1)
The variability in the remaining 23%% of positions could stem from either selection pressure favouring a specific substitution (positive selection), or, on the contrary, from the lack of strong selection pressure to keep the position invariable (negative selection).
Similar(59)
It is possible that negative selection might maintain an invariable combination at these sites to preserve MD-2 binding, which supports our hypothesis mentioned above.
Copper electrodeposition over a thin TaN/Ta barrier was performed in a two steps process; (1) Activation conducted by electrochemically reduction of Ta oxide from the TaN/Ta barrier at a negative potential of −2 V for a short period ("removal" step) and (2) copper electroplating performed in the invariable electrochemical bath by injecting a solution containing Cu-ions.
Copper electrodeposition over a thin TaN/Ta barrier was performed in a two-step process: (1) activation conducted by electrochemically reduction of Ta oxide from the TaN/Ta barrier at a negative potential of −2 V for a short period ("removal" step) and (2) copper electroplating performed in the invariable electrochemical bath by injecting a solution containing Cu-ions.
Adverbs, prepositions, conjunctions, and interjections are invariable.
Leu349 was another invariable residue.
Is this child's world invariable?
"Like Obama!" is the invariable response.
He went on to describe his "invariable" working method.
The invariable answer: poor people and communities of color.
Economic laws are cast as universal and invariable.
Write better and faster with AI suggestions while staying true to your unique style.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com