BACKGROUND Adolescents are vulnerable to risky behaviours that are likely to co-occur. We examined whether happiness, awareness of alcohol- or smoking-related harm or the size of friendship networks would be longitudinally associated with young people's risky behaviours. METHODS We used available cases (N=1,729) from adolescents aged between 10 and 15 who participated in waves 2 and 3 of the ...

Background: Epstein-Bar virus (EBV) causes infectious mononucleosis in more than 90% of children. Rarely, mononucleosis may lead to malignancy. The aim the current study was to introduce a child with mononucleosis and persistent adenopathy. Case report: A 4-year-old male patient presented with complaints of fever, shortness of breath and sore throat. He was treated with antibiotics and prednis...

This paper reports an investigation of the incidence of persistent generalised joint laxity in patients with congenital dislocation of the hip and in normal school children. Capsular laxity has attracted much attention in studies of the etiology of congenital dislocation of the hip joint. At first it was thought to be an isolated result of mechanical stretching. but it is now usually considered...

For a fixed $N$, we analyze the space of all sequences $z=(z_1,\dots,z_N)$, approximating continuous function on circle, with given persistence diagram $P$, and show that typical components this are homotopy equivalent to $S^1$. We also consider functions $Y$-shaped (resp., star-shaped) trees 2-point diagram, is $S^1$ bouquet circles).