85 research outputs found

    Π­Π€Π€Π•ΠšΠ’Π˜Π’ΠΠžΠ‘Π’Π¬ ΠšΠ Π•ΠœΠ, Π‘ΠžΠ”Π•Π Π–ΠΠ©Π•Π“Πž Π’Π•Π ΠΠŸΠΠœΠ˜Π›Π Π“Π˜Π”Π ΠžΠ₯Π›ΠžΠ Π˜Π”, Π’ Π’Π•Π ΠΠŸΠ˜Π˜ Π Π£Π‘Π¦ΠžΠ’ Π’ Π­ΠšΠ‘ΠŸΠ•Π Π˜ΠœΠ•ΠΠ’Π•

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    The data in respect to efficacy of verapamil-containing scar cream for treatment of hypertrophic and keloid scars are presented in the article. Skin scars were simulated in rats by excision of a full-thickness skin flap size 5x4Β cm2 in the center of the back. Upon wound healing and scar formation a daily twofold fomentation of verapamil-containing cream was carried out. Treatment efficacy was checked after 10, 30 and 60 days. The following indices were studied: an area of the scar, its type, consistence, color, sensitivity, and scar microcirculation according to biomicroscopy. The proposed novel method for treatment of hypertrophic and keloid scars with verapamil-containing cream allowed to obtain a sustained clinical result demonstrating a reducing area of the scar by 25%, a physiological scar formation, improving the consistence and scar colour changing to the normal skin colour, its softening and flattening, and pain disappearance. Due to the dermal application, the method was painless, safety and did not affect on the surrounding tissues. According to biomicroscopy a scar remodeling approximated the indices to the level of healthy skin in 93% of rats. The most significant clinical effect the cream with verapamil was observed in experimental animals in 60 days after treatment.ΠŸΡ€ΠΈΠ²ΠΎΠ΄ΡΡ‚ΡΡ Π΄Π°Π½Π½Ρ‹Π΅ ΠΏΠΎΒ ΠΎΡ†Π΅Π½ΠΊΠ΅ эффСктивности ΠΎΡ€ΠΈΠ³ΠΈΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π°Π½Ρ‚ΠΈΡ€ΡƒΠ±Ρ†ΠΎΠ²ΠΎΠ³ΠΎ ΠΊΡ€Π΅ΠΌΠ° на основС Π²Π΅Ρ€Π°ΠΏΠ°ΠΌΠΈΠ»Π° для лСчСния гипСртрофичСских ΠΈΒ ΠΊΠ΅Π»ΠΎΠΈΠ΄Π½Ρ‹Ρ… Ρ€ΡƒΠ±Ρ†ΠΎΠ² в экспСримСнтС. ΠšΠΎΠΆΠ½Ρ‹Π΅ Ρ€ΡƒΠ±Ρ†Ρ‹ крысам ΠΌΠΎΠ΄Π΅Π»ΠΈΡ€ΠΎΠ²Π°Π»ΠΈ ΠΏΡƒΡ‚Π΅ΠΌ иссСчСния полнослойного лоскута ΠΊΠΎΠΆΠΈ ΠΏΠ»ΠΎΡ‰Π°Π΄ΡŒΡŽ 5Β u4 см2 Π²Β Ρ†Π΅Π½Ρ‚Ρ€Π΅ спины. ПослС заТивлСния Ρ€Π°Π½Ρ‹ и формирования Ρ€ΡƒΠ±Ρ†Π° Π²Β Ρ‚Π΅Ρ‡Π΅Π½ΠΈΠ΅ 2 мСс. ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΎΡΡŒ Π΅ΠΆΠ΅Π΄Π½Π΅Π²Π½ΠΎΠ΅ Π΄Π²ΡƒΠΊΡ€Π°Ρ‚Π½ΠΎΠ΅ Π²Ρ‚ΠΈΡ€Π°Π½ΠΈΠ΅ Π²Β ΠΎΠ±Π»Π°ΡΡ‚ΡŒ рубцСвания ΠΊΡ€Π΅ΠΌΠ°, содСрТащСго в качСствС Π±Π°Π·ΠΎΠ²ΠΎΠ³ΠΎ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚Π° Π²Π΅Ρ€Π°ΠΏΠ°ΠΌΠΈΠ». ΠšΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŒ эффСктивности лСчСния ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ Ρ‡Π΅Ρ€Π΅Π· 10, 30 ΠΈΒ 60 сут. Π˜Π·ΡƒΡ‡Π΅Π½Ρ‹ ΡΠ»Π΅Π΄ΡƒΡŽΡ‰ΠΈΠ΅ ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»ΠΈ: ΠΏΠ»ΠΎΡ‰Π°Π΄ΡŒ Ρ€ΡƒΠ±Ρ†Π°, Π΅Π³ΠΎ Ρ‚ΠΈΠΏ, консистСнция, Ρ†Π²Π΅Ρ‚, Ρ‡ΡƒΠ²ΡΡ‚Π²ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ, ΠΏΠΎΒ Π΄Π°Π½Π½Ρ‹ΠΌ биомикроскопии — микроциркуляция Ρ€ΡƒΠ±Ρ†Π°. ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Ρ‹ΠΉ Π½ΠΎΠ²Ρ‹ΠΉ ΠΌΠ΅Ρ‚ΠΎΠ΄ лСчСния гипСртрофичСских ΠΈΒ ΠΊΠ΅Π»ΠΎΠΈΠ΄Π½Ρ‹Ρ… Ρ€ΡƒΠ±Ρ†ΠΎΠ² с использованиСм ΠΎΡ€ΠΈΠ³ΠΈΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ вСрапамилсодСрТащСго ΠΊΡ€Π΅ΠΌΠ° ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ» в экспСримСнтС ΠΏΠΎΠ»ΡƒΡ‡ΠΈΡ‚ΡŒ стойкий клиничСский Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚, Π·Π°ΠΊΠ»ΡŽΡ‡Π°ΡŽΡ‰ΠΈΠΉΡΡ Π²Β ΡƒΠΌΠ΅Π½ΡŒΡˆΠ΅Π½ΠΈΠΈ ΠΏΠ»ΠΎΡ‰Π°Π΄ΠΈ Ρ€ΡƒΠ±Ρ†Π° Π½Π°Β 25%, Ρ„ΠΎΡ€ΠΌΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠΈ физиологичСского Ρ€ΡƒΠ±Ρ†Π°, ΡƒΠ»ΡƒΡ‡ΡˆΠ΅Π½ΠΈΠΈ консистСнции ΠΈΒ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΈ Ρ†Π²Π΅Ρ‚Π° Ρ€ΡƒΠ±Ρ†Π° Π΄ΠΎΒ Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€Π½ΠΎΠ³ΠΎ для ΠΎΠΊΡ€ΡƒΠΆΠ°ΡŽΡ‰Π΅ΠΉ ΠΊΠΎΠΆΠΈ, Π΅Π³ΠΎ размягчСнии ΠΈΒ ΡƒΠΏΠ»ΠΎΡ‰Π΅Π½ΠΈΠΈ, исчСзновСнии Π±ΠΎΠ»Π΅Π²Ρ‹Ρ… ΠΎΡ‰ΡƒΡ‰Π΅Π½ΠΈΠΉ. За счСт Π½Π°ΠΊΠΎΠΆΠ½ΠΎΠ³ΠΎ нанСсСния способ являлся Π±Π΅Π·Π±ΠΎΠ»Π΅Π·Π½Π΅Π½Π½Ρ‹ΠΌ, бСзопасным ΠΈΒ Π½Π΅Β ΠΎΠΊΠ°Π·Ρ‹Π²Π°Π» влияния Π½Π°Β ΠΎΠΊΡ€ΡƒΠΆΠ°ΡŽΡ‰ΠΈΠ΅ Ρ‚ΠΊΠ°Π½ΠΈ. ΠŸΠΎΒ Π΄Π°Π½Π½Ρ‹ΠΌ биомикроскопии, Ρ€Π΅ΠΌΠΎΠ΄Π΅Π»ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ патологичСского Ρ€ΡƒΠ±Ρ†Π° ΠΏΡ€ΠΈΠ±Π»ΠΈΠΆΠ°Π»ΠΎ ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»ΠΈ ΠΊΒ ΡƒΡ€ΠΎΠ²Π½ΡŽ Π·Π΄ΠΎΡ€ΠΎΠ²ΠΎΠΉ ΠΊΠΎΠΆΠΈ ΡƒΒ 93% крыс. НаиболСС Π·Π½Π°Ρ‡ΠΈΠΌΡ‹ΠΉ Π²Β Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ΅ Π±ΠΎΠ»Π΅Π·Π½ΠΈ клиничСский эффСкт примСнСния ΠΎΡ€ΠΈΠ³ΠΈΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π°Π½Ρ‚ΠΈΡ€ΡƒΠ±Ρ†ΠΎΠ²ΠΎΠ³ΠΎ ΠΊΡ€Π΅ΠΌΠ° на основС Π²Π΅Ρ€Π°ΠΏΠ°ΠΌΠΈΠ»Π° наблюдался ΡƒΒ ΡΠΊΡΠΏΠ΅Ρ€ΠΈΠΌΠ΅Π½Ρ‚Π°Π»ΡŒΠ½Ρ‹Ρ… ΠΆΠΈΠ²ΠΎΡ‚Π½Ρ‹Ρ… Ρ‡Π΅Ρ€Π΅Π· 60 Π΄Π½Π΅ΠΉ послС лСчСния

    State Institutions of Belarus in the Process of Political Participation

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    The subject of the analysis is the content and forms of transformations of political communications of young people in the post-Soviet period. The directions and features of institutional practices that have influenced the change in the volume and content of modern political communications of young people are considered. Opportunities for improving political communication between political and power institutions and the youth environment using the available resources of information and communication technologies are outlined.ΠŸΡ€Π΅Π΄ΠΌΠ΅Ρ‚ΠΎΠΌ Π°Π½Π°Π»ΠΈΠ·Π° стали содСрТаниС ΠΈ Ρ„ΠΎΡ€ΠΌΡ‹ трансформаций политичСских ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΠΉ ΠΌΠΎΠ»ΠΎΠ΄Π΅ΠΆΠΈ Π² постсовСтский ΠΏΠ΅Ρ€ΠΈΠΎΠ΄. РассмотрСны направлСния ΠΈ особСнности ΠΈΠ½ΡΡ‚ΠΈΡ‚ΡƒΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½Ρ‹Ρ… ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊ, ΠΎΠΊΠ°Π·Π°Π²ΡˆΠΈΡ… влияниС Π½Π° ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ объСмов ΠΈ содСрТания соврСмСнных политичСских ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΠΉ ΠΌΠΎΠ»ΠΎΠ΄Π΅ΠΆΠΈ. ΠžΠ±ΠΎΠ·Π½Π°Ρ‡Π΅Π½Ρ‹ возмоТности ΠΏΠΎ ΡΠΎΠ²Π΅Ρ€ΡˆΠ΅Π½ΡΡ‚Π²ΠΎΠ²Π°Π½ΠΈΡŽ политичСских ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΠΉ ΠΌΠ΅ΠΆΠ΄Ρƒ ΠΏΠΎΠ»ΠΈΡ‚ΠΈΠΊΠΎ-властными институтами ΠΈ ΠΌΠΎΠ»ΠΎΠ΄Π΅ΠΆΠ½ΠΎΠΉ срСдой с использованиСм ΠΈΠΌΠ΅ΡŽΡ‰ΠΈΡ…ΡΡ рСсурсов ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎ-ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΉ

    Π‘Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡ‚ΡŒ личности, общСства ΠΈ государства: ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎ-психологичСский аспСкт

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    Π’ соврСмСнном ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΌ ΠΌΠΈΡ€Π΅, с всС Π±ΠΎΠ»Π΅Π΅ Π²ΠΎΠ·Ρ€Π°ΡΡ‚Π°ΡŽΡ‰ΠΈΠΌ ΠΏΠΎΡ‚ΠΎΠΊΠΎΠΌ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΈ, ΡΡ‚Ρ€Π΅ΠΌΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ ΠΈΠ·ΠΌΠ΅Π½ΡΡŽΡ‰ΠΈΡ…ΡΡ Ρ„ΠΎΡ€ΠΌΠ°Ρ… ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Π°Ρ… влияния Π½Π° Π»ΠΈΡ‡Π½ΠΎΡΡ‚ΡŒ вСсьма Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½Ρ‹ΠΌΠΈ становятся вопросы ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΡ уровня ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΉ бСзопасности личности, общСства ΠΈ государства. Π’ ΡΡ‚Π°Ρ‚ΡŒΠ΅ Ρ€Π°ΡΡΠΌΠ°Ρ‚Ρ€ΠΈΠ²Π°ΡŽΡ‚ΡΡ основныС аспСкты ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΉ бСзопасности личности, общСства ΠΈ государства, Ρ€ΠΎΠ»ΡŒ срСдств ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΠΈ, Π² Ρ‚ΠΎΠΌ числС БМИ Π² обСспСчСнии ΡΡ‚Π°Π±ΠΈΠ»ΡŒΠ½ΠΎΡΡ‚ΠΈ общСства. ΠžΡΠΎΠ±Ρ‹ΠΉ Π°ΠΊΡ†Π΅Π½Ρ‚ удСляСтся ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎ-психологичСской ΡΠΎΡΡ‚Π°Π²Π»ΡΡŽΡ‰Π΅ΠΉ бСзопасности личности. In the modern information world, with an ever-increasing flow of information, rapidly changing forms and methods of influencing the personality, the issues of raising the level of information security of the individual, society and the state become very topical. The article examines the main aspects of information security of the individual, society and the state, the role of communication media, including the media, in ensuring the stability of society. Particular emphasis is placed on the information and psychological component of personal security

    К вопросу ΠΎ трансформациях ΠΌΠ΅Ρ…Π°Π½ΠΈΠ·ΠΌΠΎΠ² политичСских ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΠΉ ΠΌΠΎΠ»ΠΎΠ΄Π΅ΠΆΠΈ

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    The subject of the analysis is the content and forms of transformations of political communications of young people in the post-Soviet period. The directions and features of institutional practices that have influenced the change in the volume and content of modern political communications of young people are considered. Opportunities for improving political communication between political and power institutions and the youth environment using the available resources of information and communication technologies are outlined.ΠŸΡ€Π΅Π΄ΠΌΠ΅Ρ‚ΠΎΠΌ Π°Π½Π°Π»ΠΈΠ·Π° стали содСрТаниС ΠΈ Ρ„ΠΎΡ€ΠΌΡ‹ трансформаций политичСских ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΠΉ ΠΌΠΎΠ»ΠΎΠ΄Π΅ΠΆΠΈ Π² постсовСтский ΠΏΠ΅Ρ€ΠΈΠΎΠ΄. РассмотрСны направлСния ΠΈ особСнности ΠΈΠ½ΡΡ‚ΠΈΡ‚ΡƒΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½Ρ‹Ρ… ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊ, ΠΎΠΊΠ°Π·Π°Π²ΡˆΠΈΡ… влияниС Π½Π° ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ объСмов ΠΈ содСрТания соврСмСнных политичСских ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΠΉ ΠΌΠΎΠ»ΠΎΠ΄Π΅ΠΆΠΈ. ΠžΠ±ΠΎΠ·Π½Π°Ρ‡Π΅Π½Ρ‹ возмоТности ΠΏΠΎ ΡΠΎΠ²Π΅Ρ€ΡˆΠ΅Π½ΡΡ‚Π²ΠΎΠ²Π°Π½ΠΈΡŽ политичСских ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΠΉ ΠΌΠ΅ΠΆΠ΄Ρƒ ΠΏΠΎΠ»ΠΈΡ‚ΠΈΠΊΠΎ-властными институтами ΠΈ ΠΌΠΎΠ»ΠΎΠ΄Π΅ΠΆΠ½ΠΎΠΉ срСдой с использованиСм ΠΈΠΌΠ΅ΡŽΡ‰ΠΈΡ…ΡΡ рСсурсов ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎ-ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΉ

    Π‘ΠΎΠ²Ρ€Π΅ΠΌΠ΅Π½Π½ΠΎΠ΅ общСство: Π΄ΡƒΡ…ΠΎΠ²Π½Ρ‹Π΅ аспСкты ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½ΠΎΠΉ бСзопасности личности.

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    Вопросы, исслСдуСмыС Π² ΡΡ‚Π°Ρ‚ΡŒΠ΅, особСнно интСрСсны сСгодня Π² связи с ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΉ Π²ΠΎΠΉΠ½ΠΎΠΉ, Π΄Π΅Ρ‚Π΅Ρ€ΠΌΠΈΠ½ΠΈΡ€ΡƒΡŽΡ‰Π΅ΠΉ Ρ€Π°Π·Π²ΠΈΡ‚ΠΈΠ΅ общСствСнных ΠΎΡ‚Π½ΠΎΡˆΠ΅Π½ΠΈΠΉ. Π’ ΠΏΠ΅Ρ€ΠΈΠΎΠ΄ финансово-экономичСских кризисов ΠΈ ΠΊΠΎΠ½Ρ„Π»ΠΈΠΊΡ‚ΠΎΠ² общСство особСнно нуТдаСтся Π² Π°ΠΊΡ‚ΡƒΠ°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ Π΄ΡƒΡ…ΠΎΠ²Π½Ρ‹Ρ… аспСктов ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΉ бСзопасности личности, которая выступаСт ΠΎΡΠ½ΠΎΠ²ΠΎΠΏΠΎΠ»Π°Π³Π°ΡŽΡ‰ΠΈΠΌ Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠΌ развития ΡΠΎΡ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠ³ΠΎ пространства. ΠšΠ»ΡŽΡ‡Π΅Π²Ρ‹Π΅ слова: Π½Π°Ρ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½Ρ‹Π΅ интСрСсы, цСнности, идСология, информационная Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡ‚ΡŒ личности, Π΄ΡƒΡ…ΠΎΠ²Π½ΠΎΡΡ‚ΡŒ. Questions explored in the article are of particular interest today in connection with the information war, which determines the development of public relations. During the period of the financial and economic crises and conflicts, the society especially needs updating spiritual aspects of the personal information security, which advocates the fundamental factor in the development of social space. Keywords: national interests, values, ideology, information security of the personality, spirituality

    ΠΠΠ’Π ΠžΠŸΠžΠ›ΠžΠ“Π˜Π§Π•Π‘ΠšΠ˜Π™ ΠšΠ Π˜Π—Π˜Π‘ Π’ ИНЀОРМАЦИОННОМ ΠžΠ‘Π©Π•Π‘Π’Π’Π• И Π‘Π•Π—ΠžΠŸΠΠ‘ΠΠžΠ‘Π’Π¬ Π›Π˜Π§ΠΠžΠ‘Π’Π˜

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    In the article the authors pay special attention to the axiological matrix of personality, safety culture and humanistic constant of human activity in the information society.Π’ ΡΡ‚Π°Ρ‚ΡŒΠ΅ Π°Π²Ρ‚ΠΎΡ€Ρ‹ особоС Π²Π½ΠΈΠΌΠ°Π½ΠΈΠ΅ ΡƒΠ΄Π΅Π»ΡΡŽΡ‚ аксиологичСской ΠΌΠ°Ρ‚Ρ€ΠΈΡ†Π΅ личности, ΠΊΡƒΠ»ΡŒΡ‚ΡƒΡ€Π΅ бСзопасности ΠΈ гуманистичСской константС ΠΆΠΈΠ·Π½Π΅Π΄Π΅ΡΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ° Π² ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΌ общСствС

    Electrochemical Determination of Some Triphenylmethane Dyes by Means of Voltammetry

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    AbstractThis paper provides the investigation of electrochemical properties of triphenylmethane dyes using a voltammetric method with constant-current potential sweep. Malachite green (MG) and basic fuchsin (BF) have been chosen as representatives of the triphenylmethane dyes. The electrochemical behavior of MG and BF on the surface of a mercury-film electrode depending on рН, the nature of background electrolyte and scan rate of potential sweep have been investigated. The conditions of registration have been determined for MG and BF detecting in the solution. It is demonstrated that the reduction peak currents of MG and BF increase linearly with their concentration in the range of 9.0Β·10-5- 7.0Β·10-3 mol/dm3 for MG, 6.0Β·10-5 – 8.0 10-3 mol/dm3 for BF with correlation coefficients of 0.9987 and 0.9961, respectively. The detection limit of MG is 5.0Β·10-5 mol/dm3 and for BF - 2.0Β·10-5 mol/dm3

    Volumes of polytopes in spaces of constant curvature

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    We overview the volume calculations for polyhedra in Euclidean, spherical and hyperbolic spaces. We prove the Sforza formula for the volume of an arbitrary tetrahedron in H3H^3 and S3S^3. We also present some results, which provide a solution for Seidel problem on the volume of non-Euclidean tetrahedron. Finally, we consider a convex hyperbolic quadrilateral inscribed in a circle, horocycle or one branch of equidistant curve. This is a natural hyperbolic analog of the cyclic quadrilateral in the Euclidean plane. We find a few versions of the Brahmagupta formula for the area of such quadrilateral. We also present a formula for the area of a hyperbolic trapezoid.Comment: 22 pages, 9 figures, 58 reference
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