Results: 4

Oxygen use in Atacama large millimeter and submillimeter (ALMA) arrays in Chajnantor valley at 5050 m

The Chilean workforce has over 200,000 people that are intermittently exposed to altitudes over 4000 m. In 2012, the Ministry of Health provided a technical guide for high altitude workers that included a series of actions to mitigate the effects of hypoxia. Previous studies have shown the positive effec...

Assessment of visual acuity improvement in patients with AMD referred to the low vision department

Rev. bras. oftalmol; 77 (2), 2018
Abstract Purpose: To evaluate the vision improvement through the use of visual aids of patients with Age-Related Macular Degeneration (AMD) those were examined in the low vision department. Methods: A retrospective study was conducted by reviewing medical records of 61 patients with AMD who were referr...

An eighteenth century travelling theodolite

Abstract An old topographic compass displayed in a showroom of the Museu de Astronomia e Ciências Afins (MAST), in Rio de Janeiro, Brazil, took our curiosity namely because of its resemblance to a theodolite, described by J.H. de Magellan. Not many things were known about its previous history. From the ...

The influence of assistive technology devices on the performance of activities by visually impaired

Rev. bras. oftalmol; 73 (2), 2014
Objective: To establish the influence of assistive technology devices (ATDs) on the performance of activities by visually impaired schoolchildren in the resource room. Methods: A qualitative study that comprised observation and an educational intervention in the resource room. The study population compri...