Aim. This study aims to evaluate changes in the symptoms of adolescent depression during a 17-year period. Methods. The Kraków Depression Inventory (KID), version IO “C1” was administered to 17-year-old pupils of Kraków’s high schools in 1984 and 2001. The groups studied were selected using two-stage sampling. The KID IO “C1” results of the pupils who were screened as depressive (153 in 1984; 5...

Over a 14-year period (1984-97) the presence of rotavirus in stool samples from children under 15 years with acute gastroenteritis was studied by enzymoimmunoanalysis. Serotyping (G1-G4) was performed using monoclonal antibodies. A total of 17,348 children under 15 were investigated. Rotavirus was detected in 3637 (21.0%) specimens, 74.6% of which were from children younger than 2 years old. G1...

We study the distribution of fluctuations of the S&P 500 index over a time scale deltat by analyzing three distinct databases. Database (i) contains approximately 1 200 000 records, sampled at 1-min intervals, for the 13-year period 1984-1996, database (ii) contains 8686 daily records for the 35-year period 1962-1996, and database (iii) contains 852 monthly records for the 71-year period 1926-1...

PURPOSE We conducted a population based pediatric study to determine the incidence of symptomatic kidney stones during a 25-year period and to identify factors related to variation in stone incidence during this period. MATERIALS AND METHODS The Rochester Epidemiology Project was used to identify all patients younger than 18 years who were diagnosed with kidney stones in Olmsted County, Minne...