On January 4, 2026, it will be exactly three years since I returned to the pool after a thirty-year hiatus...
SUBSTANCE: invention provides a method for producing a heterogenous skin cell population implying the sampling of a skin biopsy material at a depth of 2 mm, tissue homogenisation in 0.9% aqueous sodium chloride at temperature +23 … +25°C, recovery of homogenate, filtration of the homogenate through an inert filter cloth with the pore diameter of 20 mcm, centrifugation of the homogenate at 400 g for 5 minutes at temperature +23 … +25 C.
EFFECT: skin cell separation and viability preservation.

On January 4, 2026, it will be exactly three years since I returned to the pool after a thirty-year hiatus...
The article makes it clear that the problems of public health service are strategic in nature. That is why only tactical strategic decisions on its development can significantly influence such basic indicators as the sickness rate, the life-span and the ability to work of the population. The conceptual nature of public health service, substantiating the necessity of its conceptual restructuring, is revealed. The scenario of public health service innovative upgrade based on the conceptual technologies, taking into account of the system approach and the cultural context in their inseparability is suggested.
Keywords: Public health care, conceptual restructuring, innovative scenario, system approach, the cultural context
I don't remember any names. I don't know who these children have become. I don't know which of them is in school today, who is already working, who is raising younger brothers and sisters, and who has long been swept away by a road that we don't even know exists. But I remember their eyes.
Surprisingly, there are 14 years between these books. That's exactly how long Leo Tolstoy felt one cycle of human maturation constitutes. He had an almost intimate idea of dividing life into periods—conditional periods in which, every fourteen years, a person reaches a new level of understanding.
If, putting aside excessive modesty (briefly and strictly for scientific purposes), we apply this logic to ourselves, a curious picture emerges.