Search

International audience; This work reports on the fabrication and the characterization of hybrid optical fibers with silicon core and silica cladding. Adopting a two-step manufacturing technique derived from the stack-and-draw method, silicon-core fibers with core dimensions ranging from about 0.8 mu m to 3.5 mu m have been successively drawn into hundreds of meter-long fibers. A 3.3 mu m diameter core fiber has been more extensively characterized and background losses for this as-drawn fiber are less than 0.2 dB/cm between 1250 nm and 1650 nm, with a minimum of 0.12 dB/cm around 1600 nm. The crystalline state of the core and the limited impact of oxygen contamination were confirmed by Raman scattering, x-ray diffraction, HR-STEM, and ToF-SIMS analysis. Transmission peaks associated with specific modal distributions are evidenced under certain injection conditions and their positions are shown to be in good accordance with mode cut-off wavelengths of a step-index silicon-core fiber.

International audience; Silicon-core fibers were drawn into hundreds of meter-long spans. The regular crystalline structure of the core and the absence of oxygen contamination are demonstrated together with loss below 0.2 dB/cm from 1250 to 1650 nm.

The agro-industrial complex (AIC) is a strategic backbone industry at the regional level. Issues of food security and functional availability of food are still of particular relevance. At the same time, the issues of self-sufficient development of regions, including in the branches of the agro-industrial complex, are of strategic importance. Acceptable levels of ensuring food independence and physical availability of food with agricultural products are noted in the directions of the Doctrine of Food Security of the Russian Federation. Nevertheless, a number of unresolved problems remain in terms of the level of affordability and rational norms of food consumption: there may be an abundance of products, but at a very expensive price. Given the limited purchasing power of the population, burdened by the pandemic, it is important for consumers to be able to purchase quality products in sufficient volume to ensure an active and healthy lifestyle. In the sectoral context, there are still unresolved issues of low profitability of production, preservation of the gene pool of farm animals, reduction in the number of cattle, insufficient level of technical and technological equipment, low level of average monthly wages in agriculture. The guarantee of the economic availability of food is possible with the stabilization of the general economic situation in the country and, accordingly, the growth of real incomes of the population, which, in turn, will give positive dynamics to new points of growth in the agro-industrial complex. The main measures to increase the economic affordability of food can be implemented through regional programs to support the poorer groups of the population, for example, the provision of subsidies for catering.

In the national economy of Russia, elements of the digital economy are being actively implemented in various sectors of the economy. With regard to the agricultural sectors, digitalization of production management is an element of strategic development. Insufficiently high rates of development of this direction are accompanied by the influence of various exogenous and endogenous factors in the agricultural sectors of the regional level. The development of public-private partnerships in the agricultural sector of the economy is of great importance. The management of the regional agro-industrial complex requires the use of innovative technologies, including the digitalization of the sectoral economy. The basis of digitalization is the marketing concept of consumer orientation. The model of providing financial resources for state support in the development of the digital economy of agriculture in the Altai Territory is carried out in accordance with state and targeted programs. It is concluded that sectoral digitalization will increase the level of competitiveness of the region.

IntroductionThere is growing concern about the influence of the pharmaceutical industry on psychiatric teaching and psychiatric professionalism as a whole. As a consequence, several national and international medical and psychiatric associations have issued guidelines to regulate the interactions between physicians and industry.ObjectivesThe EFPT-PRIRS study aims to provide the lacking data on the extent and nature of these interactions among psychiatric trainees across Europe.MethodsStudy objectives were determined by the EFPT research group (EFPT-RG), after discussion with national and international experts. A survey was then devised compiling previously published questionnaires extending them by questions with specific relevance to psychiatric trainees. The resulting questionnaire was piloted amongst members of the EFPT-RG, modified accordingly and subsequently distributed to the national study coordinators. All 24 EFPT member countries were invited to participate in the study and data collection is currently ongoing.Preliminary resultsPreliminary analysis reveals the vast differences in industry - trainee relationships across European countries as well as major differences in personal attitudes towards these interactions.EFPT-PRIRS will potentially have an impact on the regulation of the interactions between the pharmaceutical industry and psychiatric trainees.