[Caplan's syndrome in marble workers as occupational disease].

Rheumatoid pneumoconiosis is an uncommon combination of occupational lung disease caused by exposure to harmful silica dust with rheumatoid inflammation of the joints, rheumatoid arthritis, with an autoimmune background. Until now, the disease was observed mostly among coal and gold miners and granite workers. Written documents on the theme are summarized.

Observation of a narrow charm-strange meson D(+)(sJ)(2632)-->D(+)(s)eta and D(0)K(+).

We report the first observation of a charm-strange meson D(+)(sJ)(2632) at a mass of 2632.5+/-1.7 MeV/c(2) in data from SELEX, the charm hadro-production experiment E781 at Fermilab.

First observation of the doubly charmed baryon Xi(+)(cc).

We observe a signal for the doubly charmed baryon Xi(+)(cc) in the charged decay mode Xi(+)(cc)-->Lambda(+)(c)K-pi(+) in data from SELEX, the charm hadroproduction experiment at Fermilab. We observe an excess of 15.9 events over an expected background of 6.

Precision measurements of the lambda(+)(c) and D0 lifetimes.

We report new precision measurements of the lifetimes of the Lambda(+)(c) and D0 from SELEX, the charm hadroproduction experiment at Fermilab. Based upon 1630 Lambda(+)(c) and 10 210 D0 decays we observe lifetimes of tau[Lambda(+)(c)] = 198.1+/-7.

Effect of exposure to lead on postural control in workers.

Objectives: To examine the effect of lead on postural control of workers who have been exposed to lead.

Methods: 63 Male, lead battery workers mean (SD) age 41.0 (7.