S Bezerra | PubMed Health

PubMed2000

Oral conditions in children from birth to 5 years: the findings of a children's dental program.

The study aimed to assess oral conditions other than caries and gingival inflammation present in the mouth of children from birth to 5 years old attending a Community Dental Program. Data were collected through the examination of all dental records, who attended the clinic from November 1997 until November 1999. A total of 1042 records were examined. The results showed that 97.7% of the patients had no lesions present in the mouth during the visits to the clinic, while 2.3% who presented did have lesions. The conditions most frequently found were: Bohn's nodules, candidiasis and benign migratory glossitis.

Brazil↗

PubMed1993

Visual modelling.

The first purpose of this paper is to present a neural net model of the visual cortex of higher vertebrates based on the electrophysiological properties of the ganglion cells. This model takes Hebb's law [1] as the physiological learning rule for synaptic modification. The model consists of 85 x 85 neurons forming a layer similar to the cortex. The neurones are massively connected via weights that are typically adapted. We simulate several input patterns and show that the model reproduces the pattern recognition, contours pictures and moving perception.

Algorithms↗