ARTÍCULOS SCOPUS

 Tomado de: M.G Fonseca Revista Cubana de Enfermeria Volume 22, Issue 4, September 2006   

"Ergonomics is the science that studies how to adequate the relation of the human being to his environment, according to the official definition adopted by the Council of the International Ergonomics Association (IEA), in August 2000. One of its branches, physical ergonomics, is in charge to study the most suitable positions. According to different studies conducted in Europe and in the United States , it is estimated that between 50% and 90% of the computer users suffer from ocular fatigue, red and dry eyes, eyelid tension, weeping, burning sensation, blurred vision, and difficulty to focus remote objects. The inappropriate body postures also produce muscular tension, headache, neck and back pain. That's why it is very important to adapt work to man and each man to his work. Most of the risk factors are introduced in working activities without a previous study of its effect on health. Generally, prevention norms are established once damage has been done, and many of them appear long after these effects are known. We made a documentary bibliographic review, where the importance of the precautions to bear in mind in relation to posture, in the visual and cardiovascular systems, as well as in the correction of these manifestations to prevent professional diseases were stressed. Ergonomics and risk factors of occupational health should be periodically assessed at each working place. To this end, all those workers using the computer systematically should be checked up by professional nurses. © 2007 1999, Editorial Ciencias Médicas.

Tomado de:"Ramón Y Cajal Hosp. Library, Ctra. de Colmenar km 9.100, 28034 Madrid, Spain" National Center for Epidemiology, Carlos III Institute of Health, Sinesio Delgado 6.

Background: Journal impact factor (IF) is linked to the probability of a paper being cited and is progressively becoming incorporated into researchers' curricula vitae. Furthermore, the decision as to which journal a given study should be submitted, may well be based on the trend in the journal's overall quality. This study sought to assess time trends in journal IF in the field of public, environmental and occupational health. Methods: We used the IFs of 80 public health journals that were registered by the Science Citation Index from 1992 through 2003 and had been listed for a minimum period of the previous 3 years. Impact factor time trends were assessed using a linear regression model, in which the dependent variable was IF and the independent variable, the year. The slope of the model and its statistical significance were taken as the indicator of annual change. Results: The IF range for the journals covered went from 0.18 to 5.2 in 2003. Although there was no statistical association between annual change and mean IF, most of the fastest growing journals registered mean IFs in excess of 1.5, and some represented emerging areas of public health research. Graphs displaying IF trends are shown. Conclusion: In view of the delay between the publication of IFs and that of any given paper, knowing the trend in IF is essential in order to make a correct choice of journal. © 2005 López-Abente and Muñoz-Tinoco; licensee BioMed Central Ltd.