Términos

Class of compounds derived from isocyanic acid used in manufacture of polyurethane resins for use in foam, coatings, and adhesives.

Electrophoresis in which the migration of proteins occurs under an applied electric field through a gel medium having a pH gradient towards a region where they are isoelectric.

An aromatic liquid phenol, isoeugenol is a constituent of the essential oils of several plants including nutmeg. It may also be synthesized from closely related eugenol by isomerization with alkali. Isoeugenol is used in perfumery and in the synthesis of vanillin.

Conjuntos de dos reglas paralelas unidas por una junta circular, marcada con grados, que combinan las funciones de un transportador y una escuadra.

A manner of arranging stones in Asian gardens, in which a large, interestingly-shaped rock is placed in an isolated area to provide visual enjoyment, or several rocks are grouped together to form a peak.

Process or action of transforming a molecule into an isomer of itself, i.e. a molecule whose atoms remain the same but are differently arranged.

Polímero de isopreno que incluye el principal constituyente del caucho natural.

Members of an order containing cellulose-eating insects, the social system of which shows remarkable parallels with those of ants and bees, although it has evolved independently.

Lines on weather maps joining locations of equal temperature at a given time or equal mean temperature over a given period.

Variants of carbon atoms that have the same number of protons but different numbers of neutrons, resulting in different nucleon numbers. The three primary isotopes of carbon are carbon-12 (C-12), carbon-13 (C-13), and carbon-14 (C-14).

Un isótopo es una variedad de un elemento químico particular que comparte con otras variedades el mismo número de protones en el núcleo, y por lo tanto el mismo número atómico y posición en la tabla periódica, pero difiere de otras variedades en el número de neutrones, y por lo tanto el peso atómico.

El estado o cualidad de tener propiedades físicas iguales a lo largo de todos los ejes.

Style of textiles, particularly carpets, from the area of İsparta, Turkey.

Use solo con referencia al arte y la arquitectura post-1948.

Úsese para describir obras producidas por el grupo étnico africano de mismo nombre que vive principalmente en Djibouti, pero también en Somalía y Etiopía.

The ISSN assigned specifically to the digital or online version of a serial.

The ISSN assigned specifically to the print version of a serial publication.

Narrow strips of land connecting two larger land masses separated by the sea, such as the Isthmus of Panama.