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Usage of Raman spectroscopy, optical microscopy, and retaining track membranes to find 20% SMOFlipid microparticles with a diameter of 5 to 10 μm and to prevent complications that arise during parenteral nutrition.

Studies by atomic force and scanning electron microscopy have shown that erythrocytes of foreign blood have morphological defects. The sequestration of foreign erythrocytes makes it difficult for the erythron to selfrepair. The actual solution to this problem is the application of the blood reinfusion technique using the Cell Saver apparatus. Transfusion of autoerythra suspension, harvested using the Cell Saver apparatus during the operation, stabilizes red blood counts in the early post-transfusion period in patients and reduces the manifestation of massive hemotransfusion syndrome. Hardware reinfusion of erythrocytes is effective and safe for massive blood loss in obstetrics. Reinfusion dictates the need for parallel correction of all blood parameters. Application of the principles of patient blood management can reduce the transfusion load, improve the quality of medical care.

Summary Wild Eurasian perch populations (Perca fluviatilis L.) are characterized by annual fluctuations in abundance as a result of environmental and intra-specific interactions. Variations in these interactions may be the source of differences in the characteristics of perch originating from different geographic regions. Perch abundances are higher in northern biotopes than in the south, although climate conditions in the latter would seem to be more conducive to perch growth. Research conducted on the growth of wild Eurasian perch strains from various regions of Europe reared in recirculating aquaculture systems (RAS) revealed differences among strains in body weight, survival, morphometric parameters, and other biological characteristics such as growth rate and feeding. Knowledge of survival and growth differences among perch strains is necessary as a tool for improvement of perch culture. Identification of the strain best adapted to RAS is the first step in a stock selection program.