OBJECTIVE To study the effects of smoking in a film trailer. DESIGN Experimental study. SETTING Ten secondary schools in Northern Germany. PARTICIPANTS A sample of 1051 adolescents with a mean (SD) age of 14.2 (1.8) years. Main Exposures Participants were randomized to view a 42-second film trailer in which the attractive female character either smoked for about 3 seconds or did not smoke...

Tracheobronchial disruption is an uncommon but severe complication of double lumen endotracheal tube placement. The physical properties of a double lumen tube (large external diameter and length) make tracheobronchial injury more common than that associated with smaller single lumen endotracheal tubes. Here we present the case of an iatrogenic left main bronchus injury caused by placement of a ...

The equilibrium distribution of a quantitative character subject to frequency- and density-dependent selection is found under different assumptions about the genetical basis of the character that lead to a normal distribution in a population. Three types of models are considered: (1) one-locus models, in which a single locus has an additive effect on the character, (2) continuous genotype model...

N;WAK ,4Q¶~'and "the team" with 2 { :. ..-Jer t.Cit;& 859° whom I was to be workJersyC.t',> . :,singfor the next eight Airpor weeks. Half an hour 2x ffi , ',_ ---: later I was in operating room B (the OR for short) trying to manipulate a fibreoptic bronchoscope into the right main bronchus of my first p,atient and hoping At[antic desperately that the City l s w!3___ ----_ trousers of my extra|_...

In a prospective study of 13 patients requiring pneumonectomy for unilateral post-tuberculous lung destruction the left side was found to be affected in 12. Review of a further 172 cases showed the left lung to have been destroyed in 109 (63%). It is suggested that this predominance of the left side is due to the anatomical characteristics of the left main bronchus and that disordered haemodyna...

Emergency Department, complaining of exertional dyspnea. A review of his medical history revealed that 3 years earlier he had tried to swallow a knife. It was removed from the esophagus by endoscopy. Two years before admission he told his relatives that he had swallowed another knife, but they did not believe him. Posteroanterior (Fig. 1) and lateral (Fig. 2) views of the chest were obtained, d...

abounovas is of unique character who has  always stimulates old and new critics to battle against each other as far as each person makes a character for him based on their understanding and special orientation instead of discovering his true  character. to recognize his real character ,however, his biography must be reread and to have a correct and real conclusion we have to refer to  reliable ...