48 research outputs found
Researches and grounds of design of pharmaceutical development and industrial introduction of production of parenteral preparations on the basis of recombinant proteins
In the conditions of introduction of the proper practice of production of medicinal facilities on pharmaceutical enterprises in Ukraine, it is necessary to develop effective measures of projects management for creation of favourable conditions for modernisation of pharmaceutical production, innovative management and management of development projects. The optimization of pharmaceutical production of injection preparations, modernisation of the pharmaceutical industries, is being implemented in accordance with the standards of GM
Inclusive education foreign experience and Russian realities
The article analyses social processes, effecting inclusive education development in countries with liberal welfare model and problems of integrated education development in Russia
Optical pH Sensing in Milk: A Small Puzzle of Indicator Concentrations and the Best Detection Method
Optical chemical sensors can yield distinctively different responses that are dependent on the method applied for readout and evaluation. We therefore present a comprehensive study on the pH determined non-continuously with optical sensors in real milk samples by either photometry or colorimetry (via the RGB-readout of digital images) compared to the pH values obtained electrochemically by potentiometry. Additionally, the photometric determination of pH was conducted with single-wavelength and a dual wavelength ratiometric evaluation of the absorbance. It was found that both the precision and accuracy of the pH determined by photometry benefit from lower concentrations of bromocresol purple, which served as the pH indicator inside the sensor membrane. A further improvement is obtained by the ratiometric evaluation of the photometric sensor response. The pH values obtained from the colorimetric evaluation, however, gain in precision and accuracy if a higher concentration of the indicator is immobilized inside the sensor membrane. This has a major impact on the future fabrication of optical pH sensor membranes because they can be better tuned to match to the most precise and accurate range of the planned detection method
Light-Induced Switching of HAMP Domain Conformation and Dynamics Revealed by Time-Resolved EPR Spectroscopy
Molecular pedomorphism underlies craniofacial skeletal evolution in Antarctic notothenioid fishes
Background
Pedomorphism is the retention of ancestrally juvenile traits by adults in a descendant taxon. Despite its importance for evolutionary change, there are few examples of a molecular basis for this phenomenon. Notothenioids represent one of the best described species flocks among marine fishes, but their diversity is currently threatened by the rapidly changing Antarctic climate. Notothenioid evolutionary history is characterized by parallel radiations from a benthic ancestor to pelagic predators, which was accompanied by the appearance of several pedomorphic traits, including the reduction of skeletal mineralization that resulted in increased buoyancy. Results
We compared craniofacial skeletal development in two pelagic notothenioids, Chaenocephalus aceratus and Pleuragramma antarcticum, to that in a benthic species, Notothenia coriiceps, and two outgroups, the threespine stickleback and the zebrafish. Relative to these other species, pelagic notothenioids exhibited a delay in pharyngeal bone development, which was associated with discrete heterochronic shifts in skeletal gene expression that were consistent with persistence of the chondrogenic program and a delay in the osteogenic program during larval development. Morphological analysis also revealed a bias toward the development of anterior and ventral elements of the notothenioid pharyngeal skeleton relative to dorsal and posterior elements. Conclusions
Our data support the hypothesis that early shifts in the relative timing of craniofacial skeletal gene expression may have had a significant impact on the adaptive radiation of Antarctic notothenioids into pelagic habitats
Optical pH Sensing in Milk: A Small Puzzle of Indicator Concentrations and the Best Detection Method
Optical chemical sensors can yield distinctively different responses that are dependent on the method applied for readout and evaluation. We therefore present a comprehensive study on the pH determined non-continuously with optical sensors in real milk samples by either photometry or colorimetry (via the RGB-readout of digital images) compared to the pH values obtained electrochemically by potentiometry. Additionally, the photometric determination of pH was conducted with single-wavelength and a dual wavelength ratiometric evaluation of the absorbance. It was found that both the precision and accuracy of the pH determined by photometry benefit from lower concentrations of bromocresol purple, which served as the pH indicator inside the sensor membrane. A further improvement is obtained by the ratiometric evaluation of the photometric sensor response. The pH values obtained from the colorimetric evaluation, however, gain in precision and accuracy if a higher concentration of the indicator is immobilized inside the sensor membrane. This has a major impact on the future fabrication of optical pH sensor membranes because they can be better tuned to match to the most precise and accurate range of the planned detection method
Benefits and Pitfalls of Deregulating Taxi Markets: Can Contrasted Case Studies Help Inform the Debate?
International audienc
In vitro reconstitution of the proteolytic system responsible for hydrolysis of the 13S globulin in buckwheat seeds
AbstractThe reconstruction of the proteolytic system responsible for the profound hydrolysis of the main storage protein of buckwheat seeds, 13S globulin, has been carried out in vitro. It was found that subsequent action of a metalloproteinase from dry buckwheat seeds and cysteine proteinase and carboxypeptidase from growing seedlings led to a profound hydrolysis of the storage protein. The 13S globulin that was not hydrolyzed with metalloproteinase was not degraded by the proteolytic enzymes of growing seedlings. A scheme is proposed, which describes the functioning of the proteolytic system hydrolyzing the storage protein in growing buckwheat seedlings in vivo