estrógeno

Conjunto de hormonas esteroideas (incluyendo el estradiol) que afectan el desarrollo de la diferenciación sexual y la función reproductiva en adultos.

estrógenos no esteroidales

Rolnictwo; Rolnictwo ogólne

Non-steroidal compounds with estrogenic activity.

enfermedad endémica

Antropologia; Antropologia fizyczna

A disease that remains at a more or less constant frequency of affected individuals in a population all of the time. Examples: hypertension, tooth decay, and malaria.

polimorfismo

Antropologia; Antropologia fizyczna

A genetic trait controlled by more than one allele, each of which has a frequency of 1% or greater in the population gene pool. See balanced polymorphism.

termoluminiscencia (TL)

Antropologia; Antropologia fizyczna

A radiometric dating method based on the fact that trace amounts of radioactive atoms, such as uranium and thorium, in some kinds of rock, soil, and clay produce constant low ...

modelo de asimilación

Antropologia; Antropologia fizyczna

A hypothesis to explain the origin of modern Homo sapiens. It proposes that the first modern humans evolved in Africa, but when they migrated into other regions they did not ...

potasio-argón

Antropologia; Antropologia fizyczna

A radiometric dating method based on the fact that potassium-40 in volcanic rock decays into argon-40 and calcium-40 at a known rate. The half-life of potassium-40 is ...

pedernal

Antropologia; Antropologia fizyczna

A kind of hard, rock with a glassy opaque appearance. It was a favorite raw material for many prehistoric humans for the manufacture of tools such as knives and scraping ...

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Branża/Dziedzina: Komunikacja Kategoria: Komunikacja pisemna

carta

Una carta es un mensaje escrito en un papel. Hoy en día es poco común usar esta vía de comunicación (excepto para asuntos oficiales e importantes) ...