A new technique, based on a chain reaction of recognition and hybridization events between two sets of DNA hairpin molecules, offers an enzyme-free alternative for the rapid detection of specific ...

Students recognize that a particular color change is a characteristic property of a substance and that a color change can also be used as evidence that a chemical reaction has occurred. Students will ...

Reaction Chemistry & Engineering Communications contain novel scientific work of such importance that rapid publication is desirable. Authors should briefly indicate in a covering letter the reasons ...

Chemical reactions make new chemicals. Atoms are rearranged during a chemical reaction, but the number of atoms does not change. Evidence of chemical reactions includes a large temperature change ...

Chemical reactions make new chemicals. Atoms are rearranged during a chemical reaction, but the number of atoms does not change. A catalyst is a substance that speeds up a chemical reaction.

Polymerase chain reaction, or PCR, is a laboratory technique used to make multiple copies of a segment of DNA. PCR is very precise and can be used to amplify, or copy, a specific DNA target from a ...

Nov. 1, 2024 — Microplastics have been steadily increasing in freshwater environments for decades and are directly tied to rising global plastic production since the 1950s, according to a new ...

Sarah Vine and Andrew Pierce bring their own no-holds-barred opinions, insights and reaction (clue is in the title) to the biggest stories of the week. New episodes every Wednesday, wherever you ...

Anaphylaxis (also called anaphylactic shock) is a severe allergic reaction that makes it difficult for a person to breathe. Anaphylactic shock develops within seconds or minutes of contact with a ...

22. Full critics reviews for Gladiator II won’t drop until closer to the film’s release date, but read on for a sampling of the first reactions to the movie after the screening. #GladiatorII ...

JERUSALEM/CAIRO, Oct 18 (Reuters) - Hamas leader Yahya Sinwar, a mastermind of the Oct. 7, 2023, attack that triggered the Gaza war, has been killed by Israeli forces in the Palestinian enclave ...

In reaction videos, some users captured themselves learning about the young singer’s death in real time. At a time when the cameras are always rolling, it’s not so unusual. By Madison Malone ...