Building leadership capacity to prevent and control noncommunicable diseases: evaluation of an international short-term training program for program managers from low- and middle-income countries.

To assess the impact of a 1-week training seminar jointly developed and conducted by the World Health Organization and the University Institute of Social and Preventive Medicine of Lausanne targeting senior policy-makers in low- and middle-income countries on public health aspects of noncommunicable diseases (NCDs). A short qualitative questionnaire was emailed to all participants to one of the nine seminars organized between 2010 and 2015. From the 195 participants from 96 different countries, 122 (63%) completed the questionnaire. Among them, 87% reported that the seminar made a positive contribution to their professional development and 48% said it helped strengthening their national NCD program. All respondents remained directly or indirectly involved in NCD work. A frequent suggestion was that similar seminars are developed in their region or country. The evaluation strongly suggests that this short-term seminar had positive impact on both participants' personal development and the organization they worked for. There is a demand for organizing similar seminars at regional/country levels to support NCD prevention and control programs

Nonlinear dynamics of nonequilibrium exciton-polaritons in a periodic potential

Abstract An exciton-polariton condensate formed in a semiconductor microcavity coupled to an exciton reservoir in the strong coupling regime is studied. The condensate is trapped in onedimensional periodic potential, and we work in the centre of Brillouin zone. We develop a model for coupled three spatial harmonics of mean field. Using the simplified model we get important analytical relations for polaritonic eigenstates and band-structure. The analytical results are supported by numerical analysis. The strong influence of external potential and nonlinearity is discussed and the feedback induced by the inhomogeneity of the incoherent reservoir on the dynamics of coherent polaritons

On the possibility of a terahertz light emitting diode based on a dressed quantum well

We consider theoretically the realization of a tunable terahertz light emitting diode from a quantum well with dressed electrons placed in a highly doped p-n junction. In the considered system the strong resonant dressing field forms dynamic Stark gaps in the valence and conduction bands and the electric field inside the p-n junction makes the QW asymmetric. It is shown that the electrons transiting through the light induced Stark gaps in the conduction band emit photons with energy directly proportional to the dressing field. This scheme is tunable, compact, and shows a fair efficiency.Comment: 6 pages, 5 figure

EXPERIENCE OF INTEGRATED TREATMENT OF DISCOGENIC RADICULOPATHY IN ATHLETES

The article examines the results of the integrated treatment of discogenic radiculopathy in athletes using the paravertebral administration of the drug containing chondroitin sodium sulphate (Hondrogard) and traction of the lumbar-sacral spine. Evidence of a higher efficiency of this combination based on subjective and objective control of treatment compared to schemes that do not use these techniques are provided