__**Researchers eligibility criteria**__ To be eligible, each researcher must simultaneously fulfill the following criteria at the time of recruitment by the beneficiary concerned within the time frame of this project. The researcher may be of any nationality. At the date of recruitment by the beneficiary, the researcher must not have resided or carried out his/her main activity (work, studies, etc…) in the country of the beneficiary for more than 12 months in the 3 years immediately prior to his/her recruitment under the project. Early stage researcher: means a researcher who, at the time of recruitment by the beneficiary, has not yet been awarded the doctorate degree and is in the first 4 years of his/her research career.