Event-Related Potentials (ERPs) are a basic, non-invasive method of neurophysiological investigation. They can be used to assess aspects of human cognitive information processing. They also can be used in experiments on higher mammals. The most important and the most studied component of the ERP record is the P3 wave. It consists of two parts, P3a and P3b. There is no doubt that, besides the us...

OBJECTIVE To evaluate the knowledge about stroke in Caxias do Sul. METHOD A closed-ended, self-administered questionnaire was used to assess the knowledge about stroke among residents of Caxias do Sul. In order to verify variables associated to lack of knowledge we defined three main end points: (1) the inability to recognize that stroke is a disease that affects the brain; (2) insufficient k...

Industrial uses of tellurium are limited, and reported cases of tellurium absorption of occupational origin are rare. Two such cases are reported here. Both showed typical signs and symptoms of intoxication; in particular, the stench of sour garlic was noted on breath and from excreta. An unusual feature was the bluish-black discoloration of the webs of the fingers and streaks on the face and n...

Rapid detection of outbreaks is recognized as crucial for effective control measures and has particular relevance with the recently increased concern about bioterrorism. Automated analysis of electronically collected laboratory data can result in rapid detection of widespread outbreaks or outbreaks of pathogens with common signs and symptoms. In the Netherlands, an automated outbreak detection ...

Most of the serious handicaps of childhood present long before the age of 3 years. In the 3 to 5 year age group the commonest cause for concern is that the child is progessing more slowly than his peers, either in acquisition of language, motor coordination, or in all aspects of development. The purpose of this paper is firstly to review the concept of 'slowness', and then to discuss the paedia...

“I was brought up in an older tradition. I was told: “before ordering a test decide what you will do if it is (a) positive, or (b) negative, and if both answers are the same don’t do the test. At the other end of the scale is the most recent innovation whereby a package of results of a dozen tests arrive at the bedside almost before the signs and symptoms have been elicited” A. Cochrane. Effect...

Data on attendees at the World Pork Expo from 1991–95 are used to evaluate the impact of farming generally, and hog farming and confinement operations more specifically, on the measured health outcomes of participants. Hog farming is found to increase risk of reduced hand strength and respiratory symptoms. To the extent these health risks are known, hog farmers will require a compensating diffe...

OBJECTIVE The primary aim was to assess experience and knowledge of adult concussion among international, professional and semiprofessional players, coaches, medical staff, and referees within Rugby Union. The secondary aim was to identify preferred education dissemination routes. DESIGN Questionnaires devised specifically for players, coaches, medical staff, and referees. SETTING AND PARTI...