List of publications on a keyword: «chemistry»


Биологические науки

Publication date: 15.09.2016
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Polkovnichenko Andrej Petrovich , candidate of biological sciences , преподаватель спецдисциплин
FSEI of MPE "Astrakhan Technical College" , Астраханская обл
Polkovnichenko Nadezhda Anatolyevna , преподаватель
FSBEI of HE "Astrakhan State University" , Астраханская обл

«Iodine deficiency disorders of dogs and their correction in biogeochemical conditions in the Lower Volga subregion»

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This article analyzes the spread of goiter in the dog population of the Astrakhan region. The authors give the main clinical signs of the disease and the method of hypothyroidism correction.

Биология

Publication date: 12.12.2017
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Esipov Alen Sergeevich , студент
Academic College , Краснодарский край

«Chemical analysis of wine conservation agents and their impact on health»

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The article provides the analysis of used conservation agents in the wine industry and the research about their impact on human's health. Sulfur dioxide and potassium sorbate are often used in the food industry and winery. This research shows which dose is potentially a threat to human's health. According to the norms of the Customs Union – the permissible dose of sulfites in wine is 300 mg/l. In this amount for healthy people, the E220 additive does not pose a threat. According to the research, the safest wines, with the minimum amount of conservation agents are "organic" wines, the content of sulfur dioxide in them is from 10 mg/l to 120 mg/l.

Естественные науки (физические и химические науки)

Publication date: 12.01.2017
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Danchenko Dmitry Gennadievich , магистрант
FSFEI of HE "Bryansk State University named after Academician Ivan Georgiyevich Petrovsky" , Брянская обл

«Chizhevsky's chandelier is the way to long life»

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Article is devoted to research of the great Russian biophysicist A. L. Chizhevsky. Based on the analysis identified the key steps of the invention device, methods of physical effects on living organisms and the experiments that prove the effectiveness of the device; aeroionotherapy selection as an effective method of prevention and treatment of human diseases identify the scientist's contribution to modern science.

Педагогика

Publication date: 18.07.2016
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Sigajlova Evgenia Alexandrovna , студентка
Boikova Olga Ivanovna , candidate of chemical sciences , доцент
FSBEI of HE "Tula State Lev Tolstoy Pedagogical University" , Тульская обл

«Research activity of pupils studying agrochemical characteristics of soil at additional chemistry courses»

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The article is devoted to the development of the chemical elective study runtime program studying agrochemical properties of soil for the further implementation on the basis of the rural school.

Publication date: 14.11.2015
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Gerasimova Irina Vladimirovna , candidate of pedagogical sciences , доцент
Gorenko Tatiana Viktorovna , магистрант
Omsk State Pedagogical University , Омская обл

«Использование QR-кодов в образовании»

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Авторы отмечают, что в настоящее время удобным способом доступа к информации во многих сферах современной жизни является сканирование QR-кода. Однако в образовании возможности технологии QR-кодирования информации практически не применяются. С помощью QR-кодов учитель химии может разрабатывать дидактические материалы (информационные тексты, задания, инструктивные карточки и т. п.) и организовывать на их основе неформальное обучение с использованием мобильных устройств, что является хорошей мотивацией для школьников

Технические науки

Publication date: 07.04.2016
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Kapustin Sergey Vladimirovich , аспирант
Krasulya Olga Nikolaevna , doctor of technical sciences , профессор
FSBEI of HE "Razumovskiy Moscow State University of Technology and Management" , Москва г

«The use of ultrasonic cavitation in the food industry»

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This article describes the benefits of using the effect of ultrasonic treatment on the nutritional environment in comparison with other types of commonly used processing methods – cutting, heat treatment, mixing. Particular attention is paid to the use sonochemical effects when emulsified liquid food media. The concrete examples and shows promising use of this type of actions to ensure the stability of food emulsions.

Химия

Publication date: 13.07.2016
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Oshurkova Ekaterina Yuryevna , ученица 10 «В» класса
Zaharko Valeriya Dmitrievna , ученица 10 «В» класса
Dubinina Natalya Ehduardovna , учитель химии
MBEI "Lyceum №22" , Ивановская обл

«Comparing natural and synthetic colorants properties»

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Natural and synthetic pigments have both advantages and disadvantages. It is usually easier and cheaper to isolate the pigment from plants than to synthesize. At the same time, synthetic dyes are more resistant to various environmental factors, which allows to use them widely. The paper examines the influence of high temperature and pH on colour and stability of anthocyanins and phthalocyanine, as well as the benefits of their use.