Kara Rogers

1 month ago | britannica.com | Kara Rogers

Top Questions The common ion effect is the phenomenon in which the addition of an ion already present in a solution reduces the solubility of a weak electrolyte or suppresses the ionization of a weak acid or base. The common ion effect is a direct application of Le Chatelier’s principle, in which adding more of a reactant causes a system to shift to counteract the change, reducing dissociation or ionization.

2 months ago | britannica.com | Kara Rogers

Top Questions Puberty blockers are medications that are used to temporarily stop the actions of hormones responsible for physical changes during puberty. They are often used for children experiencing precocious puberty or those with gender dysphoria, thereby providing time for individuals to explore gender identity before making permanent decisions.

2 months ago | britannica.com | Kara Rogers

Vaccines are among the most effective tools available in modern medicine, offering protection against a wide range of diseases that once caused significant illness, disability, and death. By stimulating the immune system to recognize and fight specific pathogens, vaccines not only protect individuals but also contribute to herd immunity—when the proportion of a population able to repel an infectious agent is sufficiently high so as to limit the spread of disease.

Nov 3, 2024 | britannica.com | Kara Rogers

chord progression, sequence of chords, consisting of three or more single pitches heard simultaneously, played in a specific order and forming the harmonic foundation of a piece of music. A chord progression essentially is the arrangement of chords that underpins the melody and sets the mood, tone, and direction of the music. Different types of chord progressions are fundamental to various musical genres and are used to create emotion, movement, tension, and release within a piece.

Oct 24, 2024 | britannica.com | Kara Rogers

Quick Facts Born: 1947, Skopje, Yugoslavia [now in the Republic of North Macedonia] Svetlana Mojsov (born 1947, Skopje, Yugoslavia [now in the Republic of North Macedonia]) is a Yugoslavian-born Macedonian American chemist known for her pioneering contributions to the discovery and understanding of peptide hormones that regulate physiological processes. Her work has been especially influential in the study of glucagon-like peptides (GLPs), a class of hormones that play a central role in...