Risk indicators for pressure ulcers during surgery.

Patients undergoing surgery are prone to develop pressure ulcers during surgery. The aim of this study was to identify pressure ulcer risk indicators in patients undergoing surgery which lasted more than four hours. A prospective follow-up study was conducted in 208 patients.

Incidence of pressure ulcers due to surgery.

Patients undergoing surgery are prone to develop pressure ulcers during the surgical procedure. The aim of the study was to gain insight into the problem by describing the incidence, clinical features and progression of pressure ulcers and closed pressure ulcers in patients undergoing surgery lasting more than 4 hours. A prospective follow-up study was conducted in a university hospital in the Netherlands.

Plant response to eggs vs. Host marking pheromone as factors inhibiting oviposition byPieris brassicae.

Pieris brassicae L. butterflies secrete miriamides onto their eggs. These avenanthramide alkaloids are strong oviposition deterrents when sprayed onto a cabbage leaf.

Isoelastic arthroplasty of the metacarpophalangeal joints in rheumatoid arthritis: a preliminary report.

The Isoelastic prosthesis for the metacarpophalangeal joint was used in 68 rheumatoid joints. The average follow-up period was 3 years and 3 months. The subjective score for pain, appearance, and usefulness as well as the functional outcome was determined by means of a modified Green test.

Host-marking pheromones in lepidoptera, with special reference to twoPieris spp.

Adult females of several lepidopteran species avoid oviposition near conspecific eggs. Laboratory and field studies indicate that visual factors as well as chemical host markers may be involved in egg avoidance behavior. The oviposition-deterring pheromones (ODP) of two pierids,P.

Does the imported cabbageworm,Pieris rapae, use an oviposition deterring pheromone?

Eggs ofPieris rapae (L.) contain a water- and methanol-soluble oviposition-deterring pheromone (ODP) that is avoided by ovipositing females offered treated and untreated cabbage leaves in a choice situation. Water extracts of female accessory glands also deter oviposition.

Seven-week persistence of an oviposition-deterrent pheromone.

Cabbage leaves sprayed with a water solution of the oviposition-deterrent pheromone ofPieris brassicae remain deterrent to ovipositing females for at least 14 days. Under laboratory conditions, the pheromone, when dried on a glass surface, retains activity for a period of at least 7 weeks. After 7 days under vacuum conditions, some pheromone is still present, indicating a low volatility and / or high stability of (an active fraction of) the pheromone.

Spontaneous Electrical Activity in the Brains of Diapausing Insects.

The spontaneous electrical activity in cerebral ganglia of several insect species does not disappear during diapause. Some recordings of electrical activity in pupae of the cecropia silkworm (in which the brain is considered to be electrically "silent" during diapause) suggest that at least some activity is maintained, but possibly it is restricted to certain regions of the brain.