aptitud colonizadora

Agents destructive to parasitic worms. They are used therapeutically in the treatment of infestation with parasitic worms of the helminth class, in humans and animal.

antígenos de superficie

농업; 일반 농업

Antigens on surfaces of cells, including infectious or foreign cells or viruses. They are usually protein-containing groups on cell membranes or walls.

antígenos de neoplasias

농업; 일반 농업

Proteins, glycoprotein, or lipoprotein moieties on surfaces of tumor cells that are usually identified by monoclonal antibodies. Many of these are of either embryonic or viral ...

antígenos de histocompatibilidad

농업; 일반 농업

A group of antigens that includes both the major and minor histocompatibility antigens. The former are genetically determined by the major histocompatibility complex. They ...

antígeno nuclear de célula proliferativa

농업; 일반 농업

Nuclear antigen with a role in DNA synthesis, DNA repair, and cell cycle progression. PCNA is required for the coordinated synthesis of both leading and lagging strands at the ...

anticonceptivos

농업; 일반 농업

Agents, devices, methods, or procedures which diminish the likelihood of or prevent conception.

뉴스 속의 용어

burbujas de la Vía Láctea

Las dos grandes burbujas con rayos gama de alta energía que sobresalen de la Vía Láctea. Cada una abarca 25000 años luz, casi el tamaño de la galaxia ...