results a total number of 20 out of 1772 (1.12%) examined students were found to be infested by lice. although the infestation rate was higher in girls, the difference of infestation rate between genders was not statistically significant (p > 0.05). the rate of head lice infestation was siginificantly (p < 0.05) correlated to their hair-washing behavior. parents’ literacy level also was siginif...

Many European lake ecosystems, including their respective catchment areas, underwent anthropogenic environmental changes over the last centuries. This has resulted in aquatic and terrestrial vegetation, but historical records on composition of past vegetation centennial scale are scarce. In this study, we examined plant communities around Lower Lake Constance using metabarcoding sedimentary DNA...

Coral reefs are commonly associated with oligotrophic, well-illuminated waters. In 2013, a healthy coral reef was discovered in one of the least expected places within the Colombian Caribbean: at the entrance of Cartagena Bay, a highly-polluted system that receives industrial and sewage waste, as well as high sediment and freshwater loads from an outlet of the Magdalena River (the longest and m...

This paper addresses the issue of defining a location service suitable for very dynamic and highly populated networks (millions of users), where services might experience highly correlated peaks of traffic or synchronized access to specific servers. Mobile agent technology is flexible enough to solve the major problems, allowing the dynamic deployment of new application servers when needed. But...

This manuscript deals with an important and interesting topic: the simulation of regional-scale pollen dispersal in a highly populated region of Southern California. Pollen allergies are among the most common respiratory allergies, and they are likely to become an even greater concern as the incidence of allergies rises. Studies such as this one could potentially be used to guide public health ...

Epidemic dynamics in a stochastic network of interacting epidemic centers is considered. The epidemic and migration processes are modelled by Markov’s chains. Explicit formulas for probability distribution of the migration process are derived. Dependence of outbreak parameters on initial parameters, population, coupling parameters is examined analytically and numerically. The mean field approxi...