158 research outputs found

    Estimation of efficiency of ozone therapy application in treatment of acute initial caries in temporary teeth in children

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    Π‘Π΅Ρ€Π΅Π΄ усіх Π±Ρ–ΠΎΠ»ΠΎΠ³Ρ–Ρ‡Π½ΠΈΡ… Π΅Ρ„Π΅ΠΊΡ‚Ρ–Π² ΠΎΠ·ΠΎΠ½Ρƒ Ρ‚Ρ€Π°Π΄ΠΈΡ†Ρ–ΠΉΠ½Π΅ ΠΏΠ΅Ρ€ΡˆΠ΅ місцС Π·Π°ΠΉΠΌΠ°Ρ” ΠΉΠΎΠ³ΠΎ Π±Π°ΠΊΡ‚Π΅Ρ€Ρ–ΠΎ-, Ρ„ΡƒΠ½Π³Ρ–- Ρ‚Π° Π²Ρ–Ρ€Ρ–Ρ†ΠΈΠ΄Π½ΠΈΠΉ Π΅Ρ„Π΅ΠΊΡ‚. О3 Π·Π½ΠΈΡ‰ΡƒΡ” ΠΏΡ€Π°ΠΊΡ‚ΠΈΡ‡Π½ΠΎ усі ΠΌΡ–ΠΊΡ€ΠΎΠΎΡ€Π³Π°Π½Ρ–Π·ΠΌΠΈ, Ρ‰ΠΎ Ρ€ΠΎΠ±ΠΈΡ‚ΡŒ ΠΉΠΎΠ³ΠΎ Π½Π°ΠΉΠ±Ρ–Π»ΡŒΡˆ Π΅Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΈΠΌ Π°Π½Ρ‚ΠΈΠ±Π°ΠΊΡ‚Π΅Ρ€Ρ–Π°Π»ΡŒΠ½ΠΈΠΌ засобом. Π‘Π΅Π·ΠΏΠΎΡΠ΅Ρ€Π΅Π΄Π½ΡŒΠΎΡŽ ΠΏΡ€ΠΈΡ‡ΠΈΠ½ΠΎΡŽ Π·Π°Π³ΠΈΠ±Π΅Π»Ρ– Π±Π°ΠΊΡ‚Π΅Ρ€Ρ–Π°Π»ΡŒΠ½ΠΎΡ— ΠΊΠ»Ρ–Ρ‚ΠΈΠ½ΠΈ ΠΏΡ–Π΄ час Π΄Ρ–Ρ— ΠΎΠ·ΠΎΠ½Ρƒ Ρ” локальнС пошкодТСння ΠΏΠ»Π°Π·ΠΌΠ°Ρ‚ΠΈΡ‡Π½ΠΎΡ— ΠΌΠ΅ΠΌΠ±Ρ€Π°Π½ΠΈ Π±Π°ΠΊΡ‚Π΅Ρ€Ρ–ΠΉ, Ρ‰ΠΎ ΠΏΡ€ΠΈΠ·Π²ΠΎΠ΄ΠΈΡ‚ΡŒ Π΄ΠΎ Π²Ρ‚Ρ€Π°Ρ‚ΠΈ ΠΆΠΈΡ‚Ρ‚Ρ”Π΄Ρ–ΡΠ»ΡŒΠ½ΠΎΡΡ‚Ρ– Π°Π±ΠΎ Π²ΠΏΠ»ΠΈΠ²Π°Ρ” Π½Π° Ρ—Ρ… Π·Π΄Π°Ρ‚Π½Ρ–ΡΡ‚ΡŒ Π΄ΠΎ розмноТСння. ΠŸΡ€ΡΠΌΠ° дія ΠΎΠ·ΠΎΠ½Ρƒ Π²ΠΈΡΠ²Π»ΡΡ”Ρ‚ΡŒΡΡ ΠΏΡ–Π΄ час Π·ΠΎΠ²Π½Ρ–ΡˆΠ½ΡŒΠΎΠ³ΠΎ застосування ΠΉΠΎΠ³ΠΎ Ρ€Ρ–Π·Π½ΠΈΡ… ΠΌΠΎΠ΄ΠΈΡ„Ρ–ΠΊΠ°Ρ†Ρ–ΠΉ, особливо Ρƒ надвисоких концСнтраціях. ΠŸΡ€ΠΈ Ρ†ΡŒΠΎΠΌΡƒ, Π½Π° Π²Ρ–Π΄ΠΌΡ–Π½Ρƒ Π²Ρ–Π΄ Π±Π°Π³Π°Ρ‚ΡŒΠΎΡ… Π²Ρ–Π΄ΠΎΠΌΠΈΡ… антисСптиків, ΠΎΠ·ΠΎΠ½ Π½Π΅ ΠΏΠΎΠ΄Ρ€Π°Π·Π½ΡŽΡ” Ρ– Π½Π΅ Ρ€ΡƒΠΉΠ½ΡƒΡ” Ρ‚ΠΊΠ°Π½ΠΈΠ½ΠΈ ΠΌΠ°ΠΊΡ€ΠΎΠΎΡ€Π³Π°Π½Ρ–Π·ΠΌΡƒ Ρ‚ΠΎΠΌΡƒ, Ρ‰ΠΎ Π½Π° ΠΏΡ€ΠΎΡ‚ΠΈΠ²Π°Π³Ρƒ ΠΌΡ–ΠΊΡ€ΠΎΠΎΡ€Π³Π°Π½Ρ–Π·ΠΌΠ°ΠΌ Π±Π°Π³Π°Ρ‚ΠΎΠΊΠ»Ρ–Ρ‚ΠΈΠ½Π½ΠΈΠΉ ΠΎΡ€Π³Π°Π½Ρ–Π·ΠΌ людини ΠΌΠ°Ρ” ΠΏΠΎΡ‚ΡƒΠΆΠ½Ρƒ антиоксидантну систСму захисту. ΠšΡ€Ρ–ΠΌ Ρ‚ΠΎΠ³ΠΎ, ΠΌΠΎΠ»Π΅ΠΊΡƒΠ»Π° О3 Π·Π½Π°Ρ‡Π½ΠΎ мСнша Π·Π° Ρ€ΠΎΠ·ΠΌΡ–Ρ€ΠΎΠΌ, Ρƒ порівнянні Π· ΠΌΠΎΠ»Π΅ΠΊΡƒΠ»Π°ΠΌΠΈ Ρ–Π½ΡˆΠΈΡ… антисСптиків, Ρ‰ΠΎ сприяє Ρ—Ρ— Π½Π°Π΄Π·Π²ΠΈΡ‡Π°ΠΉΠ½ΠΎ високій ΠΏΡ€ΠΎΠ½ΠΈΠΊΠ°ΡŽΡ‡Ρ–ΠΉ здатності

    Stages of economic substantiation analysis and modeling for the meat processing companies’ price strategy

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    The authors have presented the stages of economic substantiation analysis and modeling for making decisions on the price strategy as part of management accounting in the articl

    Can recombinant tree shrew (Tupaia belangeri chinensis) chymosin coagulate cow (Bos taurus) milk?

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    Genetically engineered chymosin from the tree shrew (Tupaia belangeri chinensis) has been obtained and partially characterized for the first time. The target enzyme was produced in Escherichia coli, strain BL21(DE3). It was shown that tree shrew recombinant chymosin coagulates cow milk (Bos taurus). The total and specific milk-clotting activity of the obtained enzyme was 0.7–5.3 IMCU/mL and 8.8–16.6 IMCU/mg. The nonspecific proteolytic activity of tree shrew recombinant chymosin in relation to total bovine casein was 30 and 117% higher than that of recombinant chymosin of cow and of single-humped camel respectively. It was found that in comparison with most of the known genetically engineered chymosins, the tree shrew enzyme showed exceptionally low thermal stability. After heating at 45Β°C, the coagulation ability of tree shrew recombinant chymosin decreased by more than 40%, and at 50Β°C the enzyme lost more than 90% of the initial milk-clotting activity. The Michaelis constant (Km), enzyme turnover number (kcat), and catalytic efficiency (kcat/Km) for genetically engineered chymosin from the tree shrew were 6.3 Β± 0.1 Β΅M, 11 927 Β± 3169 s–1 and 1968 Β± 620 Β΅M–1 s–1, respectively. Comparative analysis showed that the primary structure of the chymosin-sensitive site of cow kappa-casein and the supposed similar sequence of tree shrew kappa-casein differed by 75%. The ability of tree shrew recombinant chymosin to coagulate cow’s milk, along with a low thermal stability and high catalytic efficiency with respect to the substrate, imitating the chymosin-sensitive site of cow kappa-casein, suggests that this enzyme is of potential interest for cheese making

    ΠœΠΈΠ½Π΅Ρ€Π°Π»ΠΎΠ³ΠΈΡ‡Π΅ΡΠΊΠΈΠ΅ ΠΈ биологичСскиС свидСтСли РСдикарского захоронСния X–XI Π²Π².

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    The study of products of copper alloys of the Lomatov culture of the X-XI centuries from the collection of the Cherdyn Museum revealed two types of patina. The first pseudomorphic might be composed of intergrowths of chlorides formed upon interaction with the sweat of the hands, or a zonal rim of cuprite-malachite-azurite composition, due to interaction with groundwater. The second type, which distorts the shape of the original product, is associated with the leaching of copper and other metals and the crystallization of oxides and salts on the surface in the form of worm-like, kidney-shaped and drusoid aggregates. Fragments of mineralized biological objects (wings, eggs and larvae of flies, mole hair) found on the surface of the patina testify to the rapid oxidation of bronze, which is associated with flooding of the soil of the burial ground immediately after burial.АрхСоминСралогичСскоС ΠΈΠ·ΡƒΡ‡Π΅Π½ΠΈΠ΅ ΠΈΠ·Π΄Π΅Π»ΠΈΠΉ ΠΈΠ· ΠΌΠ΅Π΄Π½Ρ‹Ρ… сплавов ломоватовской ΠΊΡƒΠ»ΡŒΡ‚ΡƒΡ€Ρ‹ X–XI Π²Π². ΠΈΠ· ΠΊΠΎΠ»Π»Π΅ΠΊΡ†ΠΈΠΈ ЧСрдынского краСвСдчСского музСя ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ»ΠΎ Π²Ρ‹ΡΠ²ΠΈΡ‚ΡŒ Π΄Π²Π° Ρ‚ΠΈΠΏΠ° ΠΏΠ°Ρ‚ΠΈΠ½Ρ‹. ΠŸΠ΅Ρ€Π²Π°Ρ – псСвдоморфная – ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ слоТСна вростками Ρ…Π»ΠΎΡ€ΠΈΠ΄ΠΎΠ², Ρ„ΠΎΡ€ΠΌΠΈΡ€ΡƒΡŽΡ‰ΠΈΡ…ΡΡ ΠΏΡ€ΠΈ взаимодСйствии с ΠΏΠΎΡ‚ΠΎΠΌ Ρ€ΡƒΠΊ, ΠΈΠ»ΠΈ зональной ΠΎΡ‚ΠΎΡ€ΠΎΡ‡ΠΊΠΎΠΉ ΠΊΡƒΠΏΡ€ΠΈΡ‚-ΠΌΠ°Π»Π°Ρ…ΠΈΡ‚-Π°Π·ΡƒΡ€ΠΈΡ‚ΠΎΠ²ΠΎΠ³ΠΎ состава, обусловлСнной взаимодСйствиСм с Π³Ρ€ΡƒΠ½Ρ‚ΠΎΠ²Ρ‹ΠΌΠΈ Π²ΠΎΠ΄Π°ΠΌΠΈ. Π’Ρ‚ΠΎΡ€ΠΎΠΉ Ρ‚ΠΈΠΏ, ΠΈΡΠΊΠ°ΠΆΠ°ΡŽΡ‰ΠΈΠΉ Ρ„ΠΎΡ€ΠΌΡƒ исходного издСлия, связываСтся с Π²Ρ‹Ρ‰Π΅Π»Π°Ρ‡ΠΈΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΌΠ΅Π΄ΠΈ ΠΈ Π΄Ρ€ΡƒΠ³ΠΈΡ… ΠΌΠ΅Ρ‚Π°Π»Π»ΠΎΠ² ΠΈ кристаллизациСй оксидов ΠΈ солСй Π½Π° повСрхности Π² Π²ΠΈΠ΄Π΅ Ρ‡Π΅Ρ€Π²Π΅ΠΎΠ±Ρ€Π°Π·Π½Ρ‹Ρ…, ΠΏΠΎΡ‡ΠΊΠΎΠ²ΠΈΠ΄Π½Ρ‹Ρ… ΠΈ Π΄Ρ€ΡƒΠ·ΠΎΠ²ΠΈΠ΄Π½Ρ‹Ρ… Π°Π³Ρ€Π΅Π³Π°Ρ‚ΠΎΠ². ВыявлСнныС Π½Π° повСрхности ΠΏΠ°Ρ‚ΠΈΠ½Ρ‹ Ρ„Ρ€Π°Π³ΠΌΠ΅Π½Ρ‚Ρ‹ ΠΌΠΈΠ½Π΅Ρ€Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½Ρ‹Ρ… биологичСских ΠΎΠ±ΡŠΠ΅ΠΊΡ‚ΠΎΠ² (ΠΊΡ€Ρ‹Π»ΡŒΡ, яйца ΠΈ Π»ΠΈΡ‡ΠΈΠ½ΠΊΠΈ ΠΌΡƒΡ…, волосы ΠΊΡ€ΠΎΡ‚Π°) ΡΠ²ΠΈΠ΄Π΅Ρ‚Π΅Π»ΡŒΡΡ‚Π²ΡƒΡŽΡ‚ ΠΎ быстрой скорости окислСния Π±Ρ€ΠΎΠ½Π·Ρ‹, Ρ‡Ρ‚ΠΎ связываСтся с ΠΎΠ±Π²ΠΎΠ΄Π½Π΅Π½ΠΈΠ΅ΠΌ Π³Ρ€ΡƒΠ½Ρ‚Π° могильника сразу послС Π·Π°Ρ…ΠΎΡ€ΠΎΠ½Π΅Π½ΠΈ
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