inmigrantes

Una categoría especial de visas de inmigrante (E-4) para personas que perdieron su ciudadanía por matrimonio; personas que perdieron la ciudadanía sirviendo en fuerzas armadas ...

solicitación de inmigrante

Immigration; US visa

Una solicitación oficial hecha por un interesado de parte de otro para que se le otorga el estado permanente legal en Estados Unidos.

estado de inmigrante juvenil especial

Immigration; US visa

El estado para niños extranjeros en Estados Unidos quienes no tienen tarjeta verde y fueron abusados, abandonados, o descuidados.

antihelmínticos

Agriculture; General agriculture

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

Agriculture; General agriculture

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

Agriculture; General agriculture

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

Agriculture; General agriculture

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

Agriculture; General agriculture

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 ...