Isolation and Characterization of a from a Shallow Water Hydrothermal Vent.

Microbial life present in the marine environment has to be able to adapt to rapidly changing and often extreme conditions. This makes these organisms a putative source of commercially interesting compounds since adaptation provides different biochemical routes from those found in their terrestrial counterparts. In this work, the goal was the identification of a marine bacterium isolated from a sample taken at a shallow water hydrothermal vent and of its red product.

Establishment versus population growth in spatio-temporally varying environments.

We consider situations where repeated invasion attempts occur from a source population into a receptor population over extended periods of time. The receptor population contains two locations that provide different expected offspring numbers to invaders. There is demographic stochasticity in offspring numbers.

An outbreak of chickenpox in an asylum seeker centre in Italy: outbreak investigation and validity of reported chickenpox history, December 2015-May 2016.

An outbreak of chickenpox occurred between December 2015 and May 2016 among asylum seekers in a reception centre in Latium, Italy. We describe the epidemiological and laboratory investigations, control measures and validity of reported history of chickenpox infection. Serological screening of all residents and incoming asylum seekers was performed, followed by vaccine offer to all susceptible individuals without contraindication.

Quantifying stochastic introgression processes in random environments with hazard rates.

Introgression is the permanent incorporation of genes from the genome of one population into another. Previous studies have found that stochasticity in number of offspring, hybridisation, and environment are important aspects of introgression risk, but these factors have been studied separately. In this paper we extend the use of the hazard rate which we previously used to study effects of demographic stochasticity with repeated invasion attempts, to incorporate temporal environmental stochasticity.

Quantifying time-inhomogeneous stochastic introgression processes with hazard rates.

Introgression is the permanent incorporation of genes from one population into another through hybridization and backcrossing. It is currently of particular concern as a possible mechanism for the spread of modified crop genes to wild populations. The hazard rate is the probability per time unit that such an escape takes place, given that it has not happened before.

Essential oils of Origanum vulgare L. subsp. glandulosum (Desf.) Ietswaart from Tunisia: chemical composition and antioxidant activity.

Background: Characterisation of the essential oils from O. glandulosum collected in three locations of Tunisia, chemical composition and the evaluation of their antioxidant activities were carried out.

Results: The essential oils from Origanum vulgare L.

[Comparative study of conventional and topical heparin treatments for burns analgesia].

Objective: This was a prospective, randomized, open-label study controlled by active comparator. The aim was to assess analgesic efficacy and overall tolerability of a burn treatment based on topic administration of unfractionated heparin.

Methods: Fifty eight male or female patients were randomized for conventional treatment (group C) or topical heparin treatment (group TH).

Dynamics of escape mutants.

We use multi-type Galton-Watson branching processes to model the evolution of populations that, due to a small reproductive ratio of the individuals, are doomed to extinction. Yet, mutations occurring during the reproduction process, may lead to the appearance of new types of individuals that are able to escape extinction. We provide examples of such populations in medical, biological and environmental contexts and give results on (i) the probability of escape/extinction, (ii) the distribution of the waiting time to produce the first individual whose lineage does not get extinct and (iii) the distribution of the time it takes for the number of mutants to reach a high level.

Work-related injuries in young workers: an Italian multicentric epidemiological survey.

Emergency departments records from 33 hospitals were reviewed to disclose work-related injuries occurred in teen-subjects living in 14 Italian cities. During January-June 2000, 317 work-related injuries were reported. Male subjects, 17 year old, working in the industrial field, resulted the most affected, probably due to the fact that among young workers this sex and age class is the most represented one.