158 research outputs found
Estimation of efficiency of ozone therapy application in treatment of acute initial caries in temporary teeth in children
Π‘Π΅ΡΠ΅Π΄ ΡΡΡΡ
Π±ΡΠΎΠ»ΠΎΠ³ΡΡΠ½ΠΈΡ
Π΅ΡΠ΅ΠΊΡΡΠ² ΠΎΠ·ΠΎΠ½Ρ ΡΡΠ°Π΄ΠΈΡΡΠΉΠ½Π΅ ΠΏΠ΅ΡΡΠ΅ ΠΌΡΡΡΠ΅ Π·Π°ΠΉΠΌΠ°Ρ ΠΉΠΎΠ³ΠΎ Π±Π°ΠΊΡΠ΅ΡΡΠΎ-, ΡΡΠ½Π³Ρ- ΡΠ° Π²ΡΡΡΡΠΈΠ΄Π½ΠΈΠΉ Π΅ΡΠ΅ΠΊΡ. Π3 Π·Π½ΠΈΡΡΡ ΠΏΡΠ°ΠΊΡΠΈΡΠ½ΠΎ ΡΡΡ ΠΌΡΠΊΡΠΎΠΎΡΠ³Π°Π½ΡΠ·ΠΌΠΈ, ΡΠΎ ΡΠΎΠ±ΠΈΡΡ ΠΉΠΎΠ³ΠΎ Π½Π°ΠΉΠ±ΡΠ»ΡΡ Π΅ΡΠ΅ΠΊΡΠΈΠ²Π½ΠΈΠΌ Π°Π½ΡΠΈΠ±Π°ΠΊΡΠ΅ΡΡΠ°Π»ΡΠ½ΠΈΠΌ Π·Π°ΡΠΎΠ±ΠΎΠΌ. ΠΠ΅Π·ΠΏΠΎΡΠ΅ΡΠ΅Π΄Π½ΡΠΎΡ ΠΏΡΠΈΡΠΈΠ½ΠΎΡ Π·Π°Π³ΠΈΠ±Π΅Π»Ρ Π±Π°ΠΊΡΠ΅ΡΡΠ°Π»ΡΠ½ΠΎΡ ΠΊΠ»ΡΡΠΈΠ½ΠΈ ΠΏΡΠ΄ ΡΠ°Ρ Π΄ΡΡ ΠΎΠ·ΠΎΠ½Ρ Ρ Π»ΠΎΠΊΠ°Π»ΡΠ½Π΅ ΠΏΠΎΡΠΊΠΎΠ΄ΠΆΠ΅Π½Π½Ρ ΠΏΠ»Π°Π·ΠΌΠ°ΡΠΈΡΠ½ΠΎΡ ΠΌΠ΅ΠΌΠ±ΡΠ°Π½ΠΈ Π±Π°ΠΊΡΠ΅ΡΡΠΉ, ΡΠΎ ΠΏΡΠΈΠ·Π²ΠΎΠ΄ΠΈΡΡ Π΄ΠΎ Π²ΡΡΠ°ΡΠΈ ΠΆΠΈΡΡΡΠ΄ΡΡΠ»ΡΠ½ΠΎΡΡΡ Π°Π±ΠΎ Π²ΠΏΠ»ΠΈΠ²Π°Ρ Π½Π° ΡΡ
Π·Π΄Π°ΡΠ½ΡΡΡΡ Π΄ΠΎ ΡΠΎΠ·ΠΌΠ½ΠΎΠΆΠ΅Π½Π½Ρ. ΠΡΡΠΌΠ° Π΄ΡΡ ΠΎΠ·ΠΎΠ½Ρ Π²ΠΈΡΠ²Π»ΡΡΡΡΡΡ ΠΏΡΠ΄ ΡΠ°Ρ Π·ΠΎΠ²Π½ΡΡΠ½ΡΠΎΠ³ΠΎ Π·Π°ΡΡΠΎΡΡΠ²Π°Π½Π½Ρ ΠΉΠΎΠ³ΠΎ ΡΡΠ·Π½ΠΈΡ
ΠΌΠΎΠ΄ΠΈΡΡΠΊΠ°ΡΡΠΉ, ΠΎΡΠΎΠ±Π»ΠΈΠ²ΠΎ Ρ Π½Π°Π΄Π²ΠΈΡΠΎΠΊΠΈΡ
ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΡΡΡ
. ΠΡΠΈ ΡΡΠΎΠΌΡ, Π½Π° Π²ΡΠ΄ΠΌΡΠ½Ρ Π²ΡΠ΄ Π±Π°Π³Π°ΡΡΠΎΡ
Π²ΡΠ΄ΠΎΠΌΠΈΡ
Π°Π½ΡΠΈΡΠ΅ΠΏΡΠΈΠΊΡΠ², ΠΎΠ·ΠΎΠ½ Π½Π΅ ΠΏΠΎΠ΄ΡΠ°Π·Π½ΡΡ Ρ Π½Π΅ ΡΡΠΉΠ½ΡΡ ΡΠΊΠ°Π½ΠΈΠ½ΠΈ ΠΌΠ°ΠΊΡΠΎΠΎΡΠ³Π°Π½ΡΠ·ΠΌΡ ΡΠΎΠΌΡ, ΡΠΎ Π½Π° ΠΏΡΠΎΡΠΈΠ²Π°Π³Ρ ΠΌΡΠΊΡΠΎΠΎΡΠ³Π°Π½ΡΠ·ΠΌΠ°ΠΌ Π±Π°Π³Π°ΡΠΎΠΊΠ»ΡΡΠΈΠ½Π½ΠΈΠΉ ΠΎΡΠ³Π°Π½ΡΠ·ΠΌ Π»ΡΠ΄ΠΈΠ½ΠΈ ΠΌΠ°Ρ ΠΏΠΎΡΡΠΆΠ½Ρ Π°Π½ΡΠΈΠΎΠΊΡΠΈΠ΄Π°Π½ΡΠ½Ρ ΡΠΈΡΡΠ΅ΠΌΡ Π·Π°Ρ
ΠΈΡΡΡ. ΠΡΡΠΌ ΡΠΎΠ³ΠΎ, ΠΌΠΎΠ»Π΅ΠΊΡΠ»Π° Π3 Π·Π½Π°ΡΠ½ΠΎ ΠΌΠ΅Π½ΡΠ° Π·Π° ΡΠΎΠ·ΠΌΡΡΠΎΠΌ, Ρ ΠΏΠΎΡΡΠ²Π½ΡΠ½Π½Ρ Π· ΠΌΠΎΠ»Π΅ΠΊΡΠ»Π°ΠΌΠΈ ΡΠ½ΡΠΈΡ
Π°Π½ΡΠΈΡΠ΅ΠΏΡΠΈΠΊΡΠ², ΡΠΎ ΡΠΏΡΠΈΡΡ ΡΡ Π½Π°Π΄Π·Π²ΠΈΡΠ°ΠΉΠ½ΠΎ Π²ΠΈΡΠΎΠΊΡΠΉ ΠΏΡΠΎΠ½ΠΈΠΊΠ°ΡΡΡΠΉ Π·Π΄Π°ΡΠ½ΠΎΡΡΡ
Stages of economic substantiation analysis and modeling for the meat processing companiesβ price strategy
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?
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 0.7β5.3 IMCU/mL and 8.8β16.6 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, 11β927 Β± 3169 sβ1 and 1968 Β± 620 Β΅Mβ1 sβ1, 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 cowβs 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
ΠΠΈΠ½Π΅ΡΠ°Π»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ²ΠΈΠ΄Π΅ΡΠ΅Π»ΠΈ Π Π΅Π΄ΠΈΠΊΠ°ΡΡΠΊΠΎΠ³ΠΎ Π·Π°Ρ ΠΎΡΠΎΠ½Π΅Π½ΠΈΡ XβXI Π²Π².
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.ΠΡΡ
Π΅ΠΎΠΌΠΈΠ½Π΅ΡΠ°Π»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΠΈΠ·ΡΡΠ΅Π½ΠΈΠ΅ ΠΈΠ·Π΄Π΅Π»ΠΈΠΉ ΠΈΠ· ΠΌΠ΅Π΄Π½ΡΡ
ΡΠΏΠ»Π°Π²ΠΎΠ² Π»ΠΎΠΌΠΎΠ²Π°ΡΠΎΠ²ΡΠΊΠΎΠΉ ΠΊΡΠ»ΡΡΡΡΡ XβXI Π²Π². ΠΈΠ· ΠΊΠΎΠ»Π»Π΅ΠΊΡΠΈΠΈ Π§Π΅ΡΠ΄ΡΠ½ΡΠΊΠΎΠ³ΠΎ ΠΊΡΠ°Π΅Π²Π΅Π΄ΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΌΡΠ·Π΅Ρ ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ»ΠΎ Π²ΡΡΠ²ΠΈΡΡ Π΄Π²Π° ΡΠΈΠΏΠ° ΠΏΠ°ΡΠΈΠ½Ρ. ΠΠ΅ΡΠ²Π°Ρ β ΠΏΡΠ΅Π²Π΄ΠΎΠΌΠΎΡΡΠ½Π°Ρ β ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΡΠ»ΠΎΠΆΠ΅Π½Π° Π²ΡΠΎΡΡΠΊΠ°ΠΌΠΈ Ρ
Π»ΠΎΡΠΈΠ΄ΠΎΠ², ΡΠΎΡΠΌΠΈΡΡΡΡΠΈΡ
ΡΡ ΠΏΡΠΈ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠΈ Ρ ΠΏΠΎΡΠΎΠΌ ΡΡΠΊ, ΠΈΠ»ΠΈ Π·ΠΎΠ½Π°Π»ΡΠ½ΠΎΠΉ ΠΎΡΠΎΡΠΎΡΠΊΠΎΠΉ ΠΊΡΠΏΡΠΈΡ-ΠΌΠ°Π»Π°Ρ
ΠΈΡ-Π°Π·ΡΡΠΈΡΠΎΠ²ΠΎΠ³ΠΎ ΡΠΎΡΡΠ°Π²Π°, ΠΎΠ±ΡΡΠ»ΠΎΠ²Π»Π΅Π½Π½ΠΎΠΉ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ΠΌ Ρ Π³ΡΡΠ½ΡΠΎΠ²ΡΠΌΠΈ Π²ΠΎΠ΄Π°ΠΌΠΈ. ΠΡΠΎΡΠΎΠΉ ΡΠΈΠΏ, ΠΈΡΠΊΠ°ΠΆΠ°ΡΡΠΈΠΉ ΡΠΎΡΠΌΡ ΠΈΡΡ
ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΈΠ·Π΄Π΅Π»ΠΈΡ, ΡΠ²ΡΠ·ΡΠ²Π°Π΅ΡΡΡ Ρ Π²ΡΡΠ΅Π»Π°ΡΠΈΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΌΠ΅Π΄ΠΈ ΠΈ Π΄ΡΡΠ³ΠΈΡ
ΠΌΠ΅ΡΠ°Π»Π»ΠΎΠ² ΠΈ ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΠ·Π°ΡΠΈΠ΅ΠΉ ΠΎΠΊΡΠΈΠ΄ΠΎΠ² ΠΈ ΡΠΎΠ»Π΅ΠΉ Π½Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ Π² Π²ΠΈΠ΄Π΅ ΡΠ΅ΡΠ²Π΅ΠΎΠ±ΡΠ°Π·Π½ΡΡ
, ΠΏΠΎΡΠΊΠΎΠ²ΠΈΠ΄Π½ΡΡ
ΠΈ Π΄ΡΡΠ·ΠΎΠ²ΠΈΠ΄Π½ΡΡ
Π°Π³ΡΠ΅Π³Π°ΡΠΎΠ². ΠΡΡΠ²Π»Π΅Π½Π½ΡΠ΅ Π½Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ ΠΏΠ°ΡΠΈΠ½Ρ ΡΡΠ°Π³ΠΌΠ΅Π½ΡΡ ΠΌΠΈΠ½Π΅ΡΠ°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½ΡΡ
Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΎΠ±ΡΠ΅ΠΊΡΠΎΠ² (ΠΊΡΡΠ»ΡΡ, ΡΠΉΡΠ° ΠΈ Π»ΠΈΡΠΈΠ½ΠΊΠΈ ΠΌΡΡ
, Π²ΠΎΠ»ΠΎΡΡ ΠΊΡΠΎΡΠ°) ΡΠ²ΠΈΠ΄Π΅ΡΠ΅Π»ΡΡΡΠ²ΡΡΡ ΠΎ Π±ΡΡΡΡΠΎΠΉ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ Π±ΡΠΎΠ½Π·Ρ, ΡΡΠΎ ΡΠ²ΡΠ·ΡΠ²Π°Π΅ΡΡΡ Ρ ΠΎΠ±Π²ΠΎΠ΄Π½Π΅Π½ΠΈΠ΅ΠΌ Π³ΡΡΠ½ΡΠ° ΠΌΠΎΠ³ΠΈΠ»ΡΠ½ΠΈΠΊΠ° ΡΡΠ°Π·Ρ ΠΏΠΎΡΠ»Π΅ Π·Π°Ρ
ΠΎΡΠΎΠ½Π΅Π½ΠΈ
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