Instrumental development attachable to high magnification microscopes for obtaining totally focalized images.

A complete system (instrumentation and software) for acquiring micrograph images with an extended depth of focus and with no alteration to the original chromaticity has been developed. The buildup system includes (a) the electromechanical components to be coupled to a commercial microscope in order to improve it, (b) a computer program with which the focusing distance can be micrometrically modified at the same time that a set of digital images can be acquired, and (c) software that permits the in-focus pixels of each image to be extracted and incorporated into a global image with an extended depth of focus greater than that supplied by the optical characteristics of the objective used to visualize the sample. The algorithm used does not have any influence on the sample chromaticity and the generated image can be obtained with full chromaticity.

Counting electrons transferred through a thin alumina film into Au chains.

Low-temperature STM measurements combined with density functional theory calculations are employed to study the adsorption of gold on alumina/NiAl(110). The binding of Au monomers involves breaking of an oxide Al-O bond below the adatom and stabilizing the hence undercoordinated O ion by forming a new bond to an Al atom in the NiAl. The adsorption implies negative charging of the adatom.

Vallate papillae in the domestic rabbit (Oryctolagus cuniculus f. domestica).

On the root of the tongue in the rabbit there are two symmetrically located vallate papillae, covered by nonkeratinized stratified squamous epithelium. The epithelium is characterized by variable thicknesses, forming epithelial streaks of different length and irregular shape. Taste buds are found both in the epithelium covering the papillae and in the epithelium of the outer walls of the papillae from the side of the furrows.

Fungiform papillae of the tongue in the rabbit (Oryctolagus cuniculus).

Examinations were conducted on four tongues of adult rabbits (Oryctolagus cuniculus). On the basis of observations in a scanning electron microscope (SEM) it was found that fungiform papillae in the rabbit are located on the dorsal surface of the apex and body of the tongue, in the front of the torus of the tongue and on the margins of the tongue. Moreover, fungiform papillae are located laterally in relation to the torus of the tongue and are arranged linearly.