During the course of certain experiments, one of us observed that stimulation of the central end of the divided vagus with a weak current caused in the dog a pronounced rise of pressure, provided that the dog was under artificial respiration just sufficient to cause apnea (figure I, A) . If, however, the nerve was similarly stimulated in an animal breathing naturally a fall of pressure ensued. ...

Air quality in industrial environments has been studied since the second half of the 20th century. Well-documented results show that exposure to chemical pollutants through their consumption, production, and storage can damage workers' health. New research focusing on non-industrial environments has shown unexpected correlations between air quality and health effects. Artificial ventilation sys...

antidote was repeated several times, ?without any apparent effect, and the rabbit died before the other which had no antidote. The second rabbit, -when oil the point of death, quite unconscious, and with feeble convulsive movements commencing, had its trachea opened and artificial respiration applied. There was no return of consciousness or of voluntury movement ; the tail was observed to move,...

BACKGROUND Few studies have assessed whether treatment of acute cervical spinal cord injury (SCI) patients contributes to depression. METHODS Using an administrative database, we assessed patients for whom the diagnosis was unspecified injuries of cervical spinal cord (International Classification of Diseases and Injuries-10th (ICD-10) code; S14.1). We categorized patients with codes for depr...

The air in hospital wards with patients at high risk (Surgeries, Intensive Care Units and Bone Marrow Transplant Centers) has been surveyed less than the one in Operating Rooms. Therefore in this study we considered useful to verify the microbic contamination of the air of those wards evaluating the consistency of ventilation systems in relation also to the presence and location of HEPA absolut...

During the course of study on alteration in EEG pattern produced by changing ventilation, we noticed spontaneous EEG fluctuation in which two types of activities alternated at regular intervals in about half the series of experiments. Cortical and subcortical electrical activity as well as phrenic nerve volley and blood pressure was recorded in curarized cats under artificial respiration. The p...