135 research outputs found

    International visibility of Rhinoplasty research

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    Rhinoplasty represents a widely used surgical approach to correct nasal deformities and imperfections. A scientometric investigation of the world publication output and citations on these problems was carried out in Web of Science (WoS), MEDLINE, and EMBASE for a 26-year period - from January 1985 till December 2010. Any relevant publications which had been abstracted were retrieved and analyzed. In this narrow field, 4155 publications were abstracted in MEDLINE (WoK), 2286 - in EMBASE, and 1980 - in WoS. English-language publications amounted to 1922 in EMBASE and to 1895 in WoS. There were more than 7700 author's names with papers on rhinoplasty abstracted in MEDLINE (WoK) and more than 3500 ones - in WoS. The most productive authors, institutions and countries as well as the 'core' journals were identified. Bulgaria has become internationally visible with 3 papers abstracted in WoS, with two - in EMBASE, and with one - in MEDLINE (WoK). The intensity of collaboration between the researchers within the single scientific unit, between different scientific institutions in one and the same city, in different cities of one and the same country, and between collectives from different countries permanently increased. A broader incorporation of Bulgarian scientists into the international scientific communities should be recommended.Scripta Scientifica Medica 2011;43(2): 101-10

    Biotransformation of Phytosterols to Androstenedione in Two Phase Water-oil Systems

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    The microbial transformation of phytosterols to androstenedione (androst-4-ene-3,17-dione, AD) and androstadienedione (androsta-1,4-diene-3,17-dione, ADD) in two-phase water-oil systems by means of the strain Mycobacterium sp. MB3683 has been studied. The effect of some process conditions, like the agitation speed, the age and amount of inoculum, the temperature and some additional carbon sources have been investigated. The highest conversion rates were attained with 10–15 % of inolucum of age t = 16–20 h at T = 34–35 "C and n = 400 min–1. Media containing high concentrations of carbohydrates have a negative impact on the process, while the natural nitrogen sources influence beneficially the bioconversion. The use of silicon oil and polypropylene-glycol as solubilizing agents was found suitable for the above-mentioned biotransformation and permitted to increase considerably the amount of the substrate in the system. On the other hand, the biotransformation rate depended on the amount of the oils, because they inhibited the microbial cells growth

    Problems and prospects of special economic zones in Russia

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    © 2016, Pleiades Publishing, Ltd.This article provides an evaluation of the efficiency of special economic zones in Russia for the 10 years since their establishment. An analysis of the possible courses of their development has been given. Approaches to models of SEZ administration and financing have been reconsidered

    Problems and prospects of special economic zones in Russia

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    © 2016, Pleiades Publishing, Ltd.This article provides an evaluation of the efficiency of special economic zones in Russia for the 10 years since their establishment. An analysis of the possible courses of their development has been given. Approaches to models of SEZ administration and financing have been reconsidered

    Numerical simulation of gas flow and droplet motion in a wave-plate eliminator of the separator-steam-generator system in the waste-heat-utilisation complex

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    This paper studied the droplet transport and deposition in the turbulent flow inside a wave-plate eliminator of the waste-heat utilisation complex (WHUC). The Lagrangian discrete particle approach was used to simulate the process of liquid separation from wet steam flow. Two different models for droplet-eddy interaction were tested using data from the available literature. The tested numerical model was used to predict the WHUC performance

    Single Dark-Pulse Kerr Comb Supporting 1.84 Pbit/s Transmission over 37-Core Fiber

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    We show that a single dark-pulse Kerr comb can generate high enough OSNR to carry 1.84 Pbit/s data, achieved by 223 WDM spectral lines modulated with 32-Gbaud, SNR-adapted probabilistically shaped DP-QAM, over a 37-core fiber

    TRY plant trait database - enhanced coverage and open access

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    Plant traits-the morphological, anatomical, physiological, biochemical and phenological characteristics of plants-determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to biodiversity conservation, ecosystem and landscape management, restoration, biogeography and earth system modelling. Since its foundation in 2007, the TRY database of plant traits has grown continuously. It now provides unprecedented data coverage under an open access data policy and is the main plant trait database used by the research community worldwide. Increasingly, the TRY database also supports new frontiers of trait-based plant research, including the identification of data gaps and the subsequent mobilization or measurement of new data. To support this development, in this article we evaluate the extent of the trait data compiled in TRY and analyse emerging patterns of data coverage and representativeness. Best species coverage is achieved for categorical traits-almost complete coverage for 'plant growth form'. However, most traits relevant for ecology and vegetation modelling are characterized by continuous intraspecific variation and trait-environmental relationships. These traits have to be measured on individual plants in their respective environment. Despite unprecedented data coverage, we observe a humbling lack of completeness and representativeness of these continuous traits in many aspects. We, therefore, conclude that reducing data gaps and biases in the TRY database remains a key challenge and requires a coordinated approach to data mobilization and trait measurements. This can only be achieved in collaboration with other initiatives
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