Low-Cost Sensor Node for Air Quality Monitoring: Field Tests and Validation of Particulate Matter Measurements.

Air pollution is still a major public health issue, which makes monitoring air quality a necessity. Mobile, low-cost air quality measurement devices can potentially deliver more coherent data for a region or municipality than stationary measurement stations are capable of due to their improved spatial coverage. In this study, air quality measurements obtained during field tests of our low-cost air quality sensor node (sensor-box) are presented and compared to measurements from the regional air quality monitoring network.

Incidence and diagnosis of rotavirus infection in neonates: results of two studies.

The present study investigates the incidence of human rotavirus excretion in neonates of two hospitals. From April 1, 1983 to March 31, 1984, rotaviruses were detected with Rotazyme in the feces of 57 (15%) of 383 neonates at the Department of Pediatrics, University of Berne, in a total in 71 (5.2%) of the 1369 stool samples tested.

[Infectious diarrhea in children. Results of a prospective study concerning various epidemiological and clinical aspects of infectious diarrhea in children].

Over a 3-year period (from October 1981 to September 1984) 352 pediatric patients were treated for infectious diarrhea at the Division for Pediatric Infectious Diseases, Department of Pediatrics, University of Berne, Switzerland. Routine diagnostic tests on stool samples included cultures for Salmonella, Shigella, Campylobacter and Yersinia, and enzyme-linked immunosorbent assay (Rotazyme) for rotaviruses. In selected cases special tests for parasitic pathogens were also performed.

Murine cytomegalovirus.

BALB/c and C57BL/6 mice were infected with murine cytomegalovirus (MCMV). On day 4 or 12 of the infection, the animals were immunized with SRBC (T-dependent), TNP-Ficoll (T-independent) and standard poliovirus. The adverse effect of the virus infection on humoral immune responses was limited to animals immunized on day 4; while anti-SRBC antibody formation was severely depressed in both mouse strains, reduced plaque forming cells to TNP-Ficoll were registered only in BALB/c mice.