Términos

Culture or condition of citizenship or residency of the U.S. state of Wyoming.

X-ray absorption spectroscopy technique that analyzes the modelling of the dominant edge feature, and its pre-edge, that occur at the frequencies that correspond to transitions between atomic levels.

X-ray spectroscopy technique in which an intense, tunable X-ray beam of variable frequency from a synchrotron radiation source is directed at a sample and the absorption of the X-rays is measured as a function of frequency.

Radiography by secondary electron emission, an imaging technique. An example is for technical examination of painting, that records differences in intensity of electron emissions from adjacent pigments.

Computerized axial tomography in which the pixel sizes of the cross-sections of the 3-D object examined by radiography are in the micrometer range.

A form of spectroscopy in which photoelectrons excited by a beam of monochromatic x-rays are measured in order to find the characteristic binding energies of electrons at particular levels of the sample, thus identifying elements present there.

Technique applying x-ray diffraction to crystalline or powder samples in order to ascertain their structure.

Having the form or plan of two intersecting bars or lines of equal length, in which the intersection does not necessarily form right angles, and where the bars run diagonally across the vertical plane, that is, the base of the form rests on two arms that are not at right angles with the horizontal base plane. Resembling the letter "X." Use "cruciform" for forms or plans having two intersecting lines or bars at right angles, whether or not the bars are of equal length, and where the base of the form is perpendicular to the horizontal plane.

A very humble hut or dwelling generally constructed from poles with a thatched roof.

Colores anaranjados variables que se asemejan al color de la xantina, una secreción de diversos órganos animales.

Indigenous Mexican effigy braziers that functioned as receptacles for copal incense that, when burned, produced a thick, musky smoke that rose through openings in the figure.

Un compuesto débilmente básico (C5H4N4O2) aliado a ácido úrico, que se encuentra en varios órganos y secreciones del cuerpo de animales y de plantas, que forma un compuesto de color amarillo limón con ácido nítrico. Se deriva de guanina e hipoxantina, y produce ácido úrico en la oxidación.