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The light curves for almost 50 thousand stars with magnitudes have been obtained over 2.5 years at SAO RAS in the process of conducting an exoplanet survey in roughly -sized fields around the white dwarfs WD 0009 501 and GRW 708247. In this paper we present a catalog of variable stars that have been found in the considered regions. Periodogram analysis was used as the main variation search method. The catalog includes 150 periodic variable stars: 113 of them have been known previously, and for the remaining 37 variations have been discovered for the first time. These stars were classified according to the nature of the variations into four eclipsing variable and three pulsating types, as well as rotating stars. We present the periods and variation amplitudes in the range of and , determined from the investigated data. [ABSTRACT FROM AUTHOR]

Expanding the assortment of lactose-free dairy products, namely, ice cream for people who cannot tolerate lactose is a promising direction of research. The purpose of the work is to develop the technology of milk lactose-free synbiotic yogurt ice cream based on buttermilk protein-lipid concentrate, obtained by ultrafiltration/diafiltration, with the addition of natural flavoring and food additives, and the study of its quality indicators. A protein-lipid concentrate of buttermilk with a low lactose content was obtained by ultrafiltration/diafiltration, and its quality indicators were determined. The concentrate has a high protein content (16.01%) and a low lactose content (1.28%). Protein-lipid concentrate fermented with synbiotic sourdough is the main component included in the formulation of lactosefree synbiotic yogurt ice cream. The main physico-chemical parameters of the obtained fermented protein-lipid concentrate were determined, which ensures a rational content of the main components of the chemical composition in the finished lactose-free ice cream (it does not contain lactose, the protein content is 8.46%) and a high content of useful microflora (bifido- and lactobacilli). A mixture for lactose-free synbiotic yogurt ice cream was obtained according to a scientifically based recipe. A sample of lactose-free ice cream was made from the mixture using traditional technology, and organoleptic, physico-chemical and microbiological quality indicators were investigated. A comparison of the quality indicators of the studied sample with the control, which was taken as classic yogurt ice cream, was carried out. The mass fraction of lactose in samples of lactose-free ice cream is 0,011%. The developed lactosefree synbiotic yogurt ice cream has high probiotic activity (contains lacto- (3.0×108 CFU/g) and bifidobacteria (3.5×109 CFU/g)) [ABSTRACT FROM AUTHOR]

The peculiarity of the skin is that it acts not only as a place of synthesis of vitamin D, but also as an organ targeted for its biologically active form. The aim of our study was to analyze the level of vitamin D in patients with atopic dermatitis. There were examined 48 people aged between 18 to 55 years; they are residents of Vinnytsia and Vinnytsia region. Serum levels of vitamin D, total IgE and eosinophilic cationic protein (ECP) were determined in the subjects. The average level of vitamin D in the serum of patients with atopic dermatitis was 19.2 [11.3- 25.4] ng/ml, which corresponded to a deficiency. Among those surveyed, vitamin D deficiency was found in 68.4±4.7% (n=26) while vitamin D insufficiency in 31.6±4.5% (n=12). The severe course of the disease prevailed among patients aged 18-40 years (63.33±8.79) % more than in the age group of 41 years and older, (36.67±8.8%, p<0.05; OR=2.98, S=0.53, 95% SI:1.04-8.52). The proportion of people with vitamin D deficiency and moderate severity of atopic dermatitis was 62.5% (n=10) with a median level of 14 [8.3–19] ng/ml, and patients with severe atopic dermatitis made up 90.9% (n=20) (χ²=4.6; p=0.023), in which the median level of vitamin D was 14 [8.3-19] ng/ml. Serum vitamin D levels were in the zone of deficiency in patients with moderate and severe atopic dermatitis. Vitamin D deficiency was significantly more common in the group of patients with elevated levels of allergic inflammation markers. A positive correlation of medium strength between the level of vitamin D and ECP in the serum of patients with atopic dermatitis (rs=0.53, p<0.001), was revealed. [ABSTRACT FROM AUTHOR]

See the retraction notice E3S Web of Conferences 538, 00001 (2024), https://doi.org/10.1051/e3sconf/202453800001