The methods of differential geometry are used with the assumption that rays of light follow geodesic trajectories in a space whose metric is determined by the refraction index. Keeping this in mind, we show that these hypotheses are equivalent to…

To calculate retinal magnification and visual acuity in highly myopic phakic eyes corrected with anterior chamber intraocular lenses (IOLs) versus correction by other methods.
Relative retinal magnification (RRM) was used to study changes in retinal image size induced by different…

When aberrations are small, it is possible to use wave aberration variance to obtain the position of the best image plane in both conventional and holographic optical systems. However, when aberrations increase, this measurement is not sufficient and it does…

Previously we described a large collection of cloned human DNAs that encode chemically defined missense mutations
within the ribosomal protein S14 sequence. We determined that biologically inactive (i.e. null) alleles resulted primarily
from point mutations targeted to two internal segments…

A solid phase enzyme-linked immuno sorbent assay (ELISA), the antigen being bound to the surface of ferrous metal beads, was evaluated as either a diagnostic or a confirmative test for syphilis by comparison with the Venereal Disease Research Laboratory (VDRL)…

This paper has as its main aim to analyse how corporate web pages can become an essential tool in order to detect strategic trends by firms or sectors, and even a primary source for benchmarking. This technique has made it…

Outsourcing, a management practice strongly consolidated within the area of Information Systems, is currently going through a stage of unstoppable growth. This paper makes a proposal about the main reasons which may lead firms to adopt Information Systems Outsourcing. It…

Holographic data storage is a new optical technology, which allows an important number of bits to be stored in a recording material. In this paper, holographic data pages were stored in a polyvinyl alcohol/acrylamide (AA) photopolymer layer, using a peristrophic…

BACKGROUND: Household service work has been largely absent from occupational health studies. We examine the occupational hazards and health effects identified by immigrant women household service workers. METHODS: Exploratory, descriptive study of 46 documented and undocumented immigrant women in household…

En este artículo vamos a analizar determinadas estructuras se sintaxis anómala en inglés (extraposición, oración existencial, oración semi-hendida, pasiva y oración hendida) siguiendo los principios de la Gramática Sistémica Funcional, escuela lingüística que nos ayudará a entender las relaciones entre…