319 research outputs found
ΠΠ°ΡΡΠ½Π°Ρ Π΄Π΅ΡΡΠ΅Π»ΡΠ½ΠΎΡΡΡ Π―.Π. Π‘ΡΡΠΊΠΈΠ½Π° Π½Π° Ρ ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΌ ΡΠ°ΠΊΡΠ»ΡΡΠ΅ΡΠ΅ ΠΠ²Π°Π½ΠΎΠ²ΠΎ -ΠΠΎΠ·Π½Π΅ΡΠ΅Π½ΡΠΊΠΎΠ³ΠΎ ΠΏΠΎΠ»ΠΈΡΠ΅Ρ Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΈΠ½ΡΡΠΈΡΡΡΠ° ΠΈ ΠΠ²Π°Π½ΠΎΠ²ΡΠΊΠΎΠ³ΠΎ Ρ ΠΈΠΌΠΈΠΊΠΎ-ΡΠ΅Ρ Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΈΠ½ΡΡΠΈΡΡΡΠ° (1918β1932 Π³Π³.)
Objectives. Preserving the continuity of scientific schools and increasing scientific motivation is critical for educating new generations of researchers. One way to solve this problem is to promote the historically significant achievements of outstanding scientists working in the field, without which the foundations of modern chemical technologies cannot be imagined. The field of physical chemistry benefited immensely from the contributions made by Professor Yakov Kivovich Syrkin. This article is devoted to the analysis of the growth of Ya.K. Syrkin as a scientist and discusses his main scientific contributions to physical and quantum chemistry. Methods. The article was prepared using archival materials, bibliographic references, original texts of articles, and scientific reports. Results. The article details and documents the main scientific achievements of Ya.K. Syrkin during his work at the Ivanovo-Voznesensk Polytechnic Institute and the Ivanovo Institute of Chemistry and Technology between 1918 and 1932, showing his growth and development as a young scientist through his interactions with teachers and colleagues. Syrkinβs research on chemical equilibrium, reaction kinetics, thermodynamics, catalysis, solution theory, solvate effects, and colloidal systems are presented herein. Conclusions. A retrospective analysis of the career of Ya.K. Syrkin shows the scope of his research interests and his ability to build on the foundations provided by great predecessors such as Gibbs, Vanβt Hoff, Arrhenius, Ostwald, and Nernst. A comprehensive study of fundamental and applied aspects of physical chemistry guided Syrkinβs approach to understanding the importance of molecular structure and the nature of chemical bonds in all observed chemical phenomena.Π¦Π΅Π»Ρ. Π‘ΠΎΡ
ΡΠ°Π½Π΅Π½ΠΈΠ΅ ΠΏΡΠ΅Π΅ΠΌΡΡΠ²Π΅Π½Π½ΠΎΡΡΠΈ Π½Π°ΡΡΠ½ΡΡ
ΡΠΊΠΎΠ», ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ ΠΌΠΎΡΠΈΠ²Π°ΡΠΈΠΈ ΠΊ Π½Π°ΡΡΠ½ΠΎΠΌΡ ΠΏΠΎΠΈΡΠΊΡ ΡΠ²Π»ΡΠ΅ΡΡΡ Π°ΠΊΡΡΠ°Π»ΡΠ½ΠΎΠΉ Π·Π°Π΄Π°ΡΠ΅ΠΉ Π²ΠΎΡΠΏΠΈΡΠ°Π½ΠΈΡ Π½ΠΎΠ²ΡΡ
ΠΏΠΎΠΊΠΎΠ»Π΅Π½ΠΈΠΉ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΠ΅Π»Π΅ΠΉ. ΠΠ΄Π½ΠΈΠΌ ΠΈΠ· ΠΏΡΡΠ΅ΠΉ ΡΠ΅ΡΠ΅Π½ΠΈΡ ΡΡΠΎΠΉ Π·Π°Π΄Π°ΡΠΈ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΏΡΠΎΠΏΠ°Π³Π°Π½Π΄Π° ΠΈΡΡΠΎΡΠΈΡΠ΅ΡΠΊΠΈ Π·Π½Π°ΡΠΈΠΌΡΡ
Π΄ΠΎΡΡΠΈΠΆΠ΅Π½ΠΈΠΉ Π²ΡΠ΄Π°ΡΡΠΈΡ
ΡΡ ΡΡΠ΅Π½ΡΡ
, ΡΠ°Π±ΠΎΡΠ°ΡΡΠΈΡ
Π² ΠΎΠ±Π»Π°ΡΡΠΈ, Π±Π΅Π· ΠΊΠΎΡΠΎΡΠΎΠΉ Π½Π΅ ΠΌΡΡΠ»ΠΈΡΡΡ ΡΠ°Π·Π²ΠΈΡΠΈΠ΅ ΡΡΠ½Π΄Π°ΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΎΡΠ½ΠΎΠ² ΡΠΎΠ½ΠΊΠΈΡ
Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΉ. Π’Π°ΠΊΠΎΠΉ ΠΎΠ±Π»Π°ΡΡΡΡ ΡΠ²Π»ΡΠ»Π°ΡΡ ΠΈ ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠ΅ΠΉΡΠ°Ρ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠ°Ρ Ρ
ΠΈΠΌΠΈΡ, Π² ΡΠ°Π·Π²ΠΈΡΠΈΠ΅ ΠΊΠΎΡΠΎΡΠΎΠΉ ΠΎΠ³ΡΠΎΠΌΠ½ΡΠΉ Π²ΠΊΠ»Π°Π΄ Π²Π½Π΅Ρ ΠΏΡΠΎΡΠ΅ΡΡΠΎΡ Π―ΠΊΠΎΠ² ΠΠΈΠ²ΠΎΠ²ΠΈΡ Π‘ΡΡΠΊΠΈΠ½. ΠΠ°ΡΡΠΎΡΡΠ΅Π΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΠΎΡΠ²ΡΡΠ΅Π½ΠΎ Π°Π½Π°Π»ΠΈΠ·Ρ ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΡ Π―.Π. Π‘ΡΡΠΊΠΈΠ½Π° ΠΊΠ°ΠΊ ΡΡΠ΅Π½ΠΎΠ³ΠΎ ΠΈ ΠΎΠ±ΡΡΠΆΠ΄Π΅Π½ΠΈΡ Π΅Π³ΠΎ ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
Π½Π°ΡΡΠ½ΡΡ
ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΎΠ², ΠΈΠΌΠ΅ΡΡΠΈΡ
ΠΏΡΠΈΠ½ΡΠΈΠΏΠΈΠ°Π»ΡΠ½ΠΎΠ΅ Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅ Π΄Π»Ρ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΈ ΠΊΠ²Π°Π½ΡΠΎΠ²ΠΎΠΉ Ρ
ΠΈΠΌΠΈΠΈ.ΠΠ΅ΡΠΎΠ΄Ρ. ΠΡΠΈ ΠΏΠΎΠ΄Π³ΠΎΡΠΎΠ²ΠΊΠ΅ ΡΡΠ°ΡΡΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Ρ Π°ΡΡ
ΠΈΠ²Π½ΡΠ΅ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ, Π±ΠΈΠ±Π»ΠΈΠΎΠ³ΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠΏΡΠ°Π²ΠΊΠΈ, ΠΎΡΠΈΠ³ΠΈΠ½Π°Π»ΡΠ½ΡΠ΅ ΡΠ΅ΠΊΡΡΡ ΡΡΠ°ΡΠ΅ΠΉ ΠΈ Π½Π°ΡΡΠ½ΡΡ
ΠΎΡΡΠ΅ΡΠΎΠ².Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. Π ΡΡΠ°ΡΡΠ΅ ΠΏΠΎΠ΄ΡΠΎΠ±Π½ΠΎ ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ ΠΈ Π΄ΠΎΠΊΡΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎ ΠΏΠΎΠ΄ΡΠ²Π΅ΡΠΆΠ΄Π΅Π½Ρ ΠΎΡΠ½ΠΎΠ²Π½ΡΠ΅ Π½Π°ΡΡΠ½ΡΠ΅ Π΄ΠΎΡΡΠΈΠΆΠ΅Π½ΠΈΡ Π―.Π. Π‘ΡΡΠΊΠΈΠ½Π° Π² ΠΏΠ΅ΡΠΈΠΎΠ΄ Π΅Π³ΠΎ ΡΠ°Π±ΠΎΡΡ Π½Π° Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ°ΠΊΡΠ»ΡΡΠ΅ΡΠ°Ρ
ΠΠ²Π°Π½ΠΎΠ²ΠΎ-ΠΠΎΠ·Π½Π΅ΡΠ΅Π½ΡΠΊΠΎΠ³ΠΎ ΠΏΠΎΠ»ΠΈΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΈΠ½ΡΡΠΈΡΡΡΠ° ΠΈ Π² ΠΠ²Π°Π½ΠΎΠ²ΡΠΊΠΎΠΌ Ρ
ΠΈΠΌΠΈΠΊΠΎ-ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΌ ΠΈΠ½ΡΡΠΈΡΡΡΠ΅ (1918β1932 Π³Π³.), ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΠ΅ ΠΌΠΎΠ»ΠΎΠ΄ΠΎΠ³ΠΎ ΡΡΠ΅Π½ΠΎΠ³ΠΎ, Π΅Π³ΠΎ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ Ρ ΡΡΠΈΡΠ΅Π»ΡΠΌΠΈ ΠΈ ΠΊΠΎΠ»Π»Π΅Π³Π°ΠΌΠΈ. ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠΈΡ; Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΠΈΠ½Π΅ΡΠΈΠΊΠΈ; ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΡ ΡΠ²ΡΠ·ΠΈ ΠΌΠ΅ΠΆΠ΄Ρ ΠΊΠΈΠ½Π΅ΡΠΈΠΊΠΎΠΉ ΠΈ ΡΠ΅ΡΠΌΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΠΊΠΎΠΉ; ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°; ΡΠ΅ΠΎΡΠΈΠΈ ΡΠ°ΡΡΠ²ΠΎΡΠΎΠ²; ΡΠΎΠ»ΡΠ²Π°ΡΠ½ΡΡ
ΡΡΡΠ΅ΠΊΡΠΎΠ²; ΠΊΠΎΠ»Π»ΠΎΠΈΠ΄Π½ΡΡ
ΡΠΈΡΡΠ΅ΠΌ ΠΈ Π΄Ρ. ΠΡΠ²ΠΎΠ΄Ρ. Π Π΅ΡΡΠΎΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΡΠΉ Π°Π½Π°Π»ΠΈΠ· Π΄Π΅ΡΡΠ΅Π»ΡΠ½ΠΎΡΡΠΈ Π―.Π. Π‘ΡΡΠΊΠΈΠ½Π° ΠΏΠΎΠΊΠ°Π·ΡΠ²Π°Π΅Ρ Π΅Π³ΠΎ ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΠ΅, ΡΠΈΡΠΎΡΡ ΠΈΠ½ΡΠ΅ΡΠ΅ΡΠΎΠ², ΡΠΌΠ΅Π½ΠΈΠ΅ ΡΠ²ΡΠ·Π°ΡΡ, ΡΠ²ΠΎΡΡΠ΅ΡΠΊΠΈ ΠΎΡΠ΅Π½ΠΈΡΡ ΠΈ ΡΠ°Π·Π²ΠΈΡΡ ΡΡΠ½Π΄Π°ΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΠ΅ Π΄ΠΎΡΡΠΈΠΆΠ΅Π½ΠΈΡ Π²Π΅Π»ΠΈΠΊΠΈΡ
ΠΏΡΠ΅Π΄ΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΈΠΊΠΎΠ² β ΠΠΈΠ±Π±ΡΠ°, ΠΠ°Π½Ρ-ΠΠΎΡΡΠ°, ΠΡΡΠ΅Π½ΠΈΡΡΠ°, ΠΡΡΠ²Π°Π»ΡΠ΄Π°, ΠΠ΅ΡΠ½ΡΡΠ° ΠΈ Π΄ΡΡΠ³ΠΈΡ
. Π Π°Π·Π½ΠΎΡΡΠΎΡΠΎΠ½Π½Π΅Π΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΡΠ½Π΄Π°ΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΈ ΠΏΡΠΈΠΊΠ»Π°Π΄Π½ΡΡ
Π°ΡΠΏΠ΅ΠΊΡΠΎΠ² ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ Ρ
ΠΈΠΌΠΈΠΈ ΠΏΡΠΈΠ²Π΅Π»ΠΎ Π―.Π. Π‘ΡΡΠΊΠΈΠ½Π° ΠΊ ΠΏΠΎΠ½ΠΈΠΌΠ°Π½ΠΈΡ ΠΊΠ»ΡΡΠ΅Π²ΠΎΠΉ ΡΠΎΠ»ΠΈ ΡΡΡΠΎΠ΅Π½ΠΈΡ ΠΌΠΎΠ»Π΅ΠΊΡΠ» ΠΈ ΠΏΡΠΈΡΠΎΠ΄Ρ Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ²ΡΠ·ΠΈ Π²ΠΎ Π²ΡΠ΅Ρ
Π½Π°Π±Π»ΡΠ΄Π°Π΅ΠΌΡΡ
Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ²Π»Π΅Π½ΠΈΡΡ
Symmetrical and difunctional substituted cobalt phthalocyanines with benzoic acids fragments: Synthesis and catalytic activity
Β© 2017 World Scientific Publishing Company Difunctional and symmetric phthalonitriles were synthesized by nucleophilic substitution of brome and nitro-group in 4-bromo-5-nitro-phthalonitrile for residues 4-amino-, 4-hydroxyl- and 4-sulfanyl benzoic acid. Symmetrical and difunctional substituted cobalt phthalocyanines were obtained by template synthesis based on mentioned phthalonitriles. Their spectral properties and catalytic activity in aerobic oxidation of sodium (Formula presented.),(Formula presented.)-carbomoditiolate were investigated
Symmetrical and difunctional substituted cobalt phthalocyanines with benzoic acids fragments: Synthesis and catalytic activity
Β© 2017 World Scientific Publishing Company.Difunctional and symmetric phthalonitriles were synthesized by nucleophilic substitution of brome and nitro-group in 4-bromo-5-nitro-phthalonitrile for residues 4-amino-, 4-hydroxyl- and 4-sulfanyl benzoic acid. Symmetrical and difunctional substituted cobalt phthalocyanines were obtained by template synthesis based on mentioned phthalonitriles. Their spectral properties and catalytic activity in aerobic oxidation of sodium N,N-carbomoditiolate were investigated
Aza-substitution, benzo-annulation effects and catalytic activity of Ξ²-octaphenyl-substituted tetrapyrrolic macroheterocyclic cobalt complexes. I. heterogeneous catalysis
Β© 2016, Springer Science+Business Media Dordrecht.The influence of the size of conjugated Ο-system on catalytic activity of cobalt complex with Ξ²-octaphenylporphyrin and its tetraaza-, tetrabenzo and tetrabenzotetraaza derivatives was studied in present work. It is found that catalytic activity for oxidation of sulfur-containing compounds increases under extension of conjugated macrocycle system according to the following series CoPΒ <Β CoBPΒ β€Β CoPzΒ <Β CoPPzΒ βͺΒ CoPc
High birth weight as an important risk factor for infant leukemia
In this paper, we compared the birth weight distribution among 201 infant leukaemia (IL) cases with that of 440 noncancer controls enrolled in Brazil in 1999β2005. Compared with the general population and the stratum 2500β2999βg as reference, IL cases weighing 3000β3999βg presented an odds ratio (OR) of 1.68 (95% CI: 1.03β2.76), and those of 4000βg or more, an OR of 2.28 (95% CI: 1.08β4.75), Ptrend<0.01. Using hospital-based controls, the OR for 4000βg or more, compared to 2500β2999βg, was 1.30 (95% CI: 1.02β1.43) after adjusting for confounders (gender, income, maternal age, pesticide and hormonal exposure during pregnancy). The results suggest that high birth weight is associated with increased risk of IL
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