Response inhibition triggered by the briefly viewed image of a hand: Behavioural and electrophysiological evidence.

Previous research has shown that subliminally presented arrows produce negative priming effect in which responses are performed slower when primes and targets are calling for the same response than different response. This phenomenon has been attributed to self-inhibitory mechanisms of response processes. Similar negative priming was recently observed when participants responded to the direction of the target arrow and the prime was a briefly displayed image of a left or right hand.

Cholecalciferol and 25-hydroxycholecalciferol content of chicken egg yolk as affected by the cholecalciferol content of feed.

The predominant source of vitamin D is the synthesis of cholecalciferol in the skin by the action of sunlight; however, due to the relative lack of sunlight, the intake of vitamin D from food is emphasized during winter, especially in the northern countries. Only a few foods (fish, eggs, wild mushrooms, meat, and milk) are natural sources of vitamin D. In addition, the content of vitamin D in foods is generally low, and some groups of people obtain amounts of vitamin D that are too small from their diet.

Prognostic factors of advanced prostatic carcinoma.

Eighty-two patients with advanced prostatic carcinoma were treated with a long-acting luteinizing hormone releasing hormone (LHRH) agonist (Zoladex depot, Zeneca Pharmaceuticals, England). The outcome of the treatment was monitored on the basis of the following prognostic factors: local stage, number of bone metastases, histological differentiation grade and prostate-specific acid phosphatase (PAP), alkaline phosphatase (AF) and testosterone levels. The patients were followed-up until disease progression or until death.