95 research outputs found
Forming of leadership qualities in students as a topical psychological and pedagogical problem
This report raises the issue of the significance of the formation of leadership skills in students of pedagogical University as an integral part of professional training of future teachers. Β© 2014 Taylor & Francis Group
Profession-oriented pedagogic training for future teachers under conditions of network interaction with school
Β© 2015, Mediterranean Center of Social and Educational Research. All rights reserved. Activation personβs creative potential on the background of deepening democratization of social interaction is the brightest trend of society development in XXI century that stipulates transformation of practically all spheres of living environment and, above all, the sphere of education. Traditional approaches to education on every its level based on the priority of educational information transferring/uptake processes absolutely do not meet requests of intensively developing socium coming to collision with real demands of general educational servicesβ consumers. One of the important problems of pedagogic education in Russia is being insufficient practical training of future teachers for professional activity. In this connection the present article is dedicated to the problem of renewal of content of pedagogical training of future teacher of basic general school in accordance with new requirements to labour activity defined as Professional pedagogic standard and also to professional actions reflected in Federal state standard of general education. In the article there are model of substantial renewal of pedagogical cycleβs disciplines, improvement of their practical aspect on the basis of network interaction between educational organizations of general and higher education (school-university partnership). Authors suggest the content of βDisciplines of professional trainingβ module and also give general trajectory for studentβs actions aimed at its uptake. The represented model will be approbating in the Elabuga University of the Federal University of Kazan during 2015
Psychological-pedagogical follow-up of university students' civic consciousness formation
The author addresses the necessity of formation of civic consciousness of pedagogical university students in modern Russia. The author considers the particularities of the process of civic consciousness formation analyzed in the works of leading world specialists in the sphere of education. Relying upon the definition of civic consciousness as integrative personality feature the author identifies the components of this process. The contents, forms and methods of psychological-pedagogical follow up of students' civic consciousness formation are defined. Formation of students' civic consciousness is considered in class and out-of-class work, effective forms of this process are identified. Experimental study of students' civic consciousness formation is described. Β© IDOSI Publications, 2013
ΠΠΠΠΠ₯Π ΠΠΠΠ’ΠΠΠ ΠΠ€ΠΠ§ΠΠ‘ΠΠΠ ΠΠΠ ΠΠΠΠΠΠΠΠ ΠΠΠΠΠ§ΠΠ‘Π’ΠΠΠΠΠΠΠ Π‘ΠΠ‘Π’ΠΠΠ ΠΠΠ©ΠΠΠ«Π₯ ΠΠΠ£ΠΠ¬ΠΠΠ’ΠΠ ΠΠ Π471
Nutritional supplement E471 designates number of monoglycerides and diglycerides of fatty acidsand applied in the food industry as an emulsifier-stabilizer additive. It is most often used by production of margarine, ice cream, mayonnaise, yogurts and other products with the high content of fat. The technique of gas chromatographic determination of the quantitative composition of food emulsifiers on the basis of monoglycerides (E471) was developed. The essence consists in transformation of components of sample into more flying silyl derivatives in the presence of pyridine and N-Methyl-N-(trimethylsilyl)trifluoroacetamide and the subsequent gas chromatographic determination with application of internal standards (propylene glycol and tricaprin). Theanalysis was carried out on a gas chromatograph Bruker 451 GC with a flame ionization detector, capillary column - BR-5ht (100 %-dimethylpolysiloxane). Identification of the reaction products was performed with application of a mass spectrometer Scion TQ and library of mass spectrums NIST11. Selected chromatographic conditions are characterized by a short duration of the instrument analysis (35 min) and the absence of overlapping peaks. The content of glycerin and a diglycerin, free fatty acids, mono-, di- and triglycerides in seven commercial samples is established.Keywords: emulsifier E471, monoglycerides of fatty acids, gas chromatography(Russian)DOI:Β http://dx.doi.org/10.15826/analitika.2015.19.2.004Β A.V. Zykov1, V.A. Krysanov2, N.Ya. Mokshina3Β 1Open joint stock company "Efirnoe", Alekseevka , Belgorod region, Russian FederationΒ 2FSEI HPE "Voronezh State University", Voronezh, Russian FederationΒ 3N. Zhukovskii and Yu. Gagarin Air Force Academy, Voronezh, Russian FederationΠΠΈΡΠ΅Π²Π°Ρ Π΄ΠΎΠ±Π°Π²ΠΊΠ° E471 ΠΎΠ±ΠΎΠ·Π½Π°ΡΠ°Π΅Ρ ΡΡΠ΄ ΠΌΠΎΠ½ΠΎΠ³Π»ΠΈΡΠ΅ΡΠΈΠ΄ΠΎΠ² ΠΈ Π΄ΠΈΠ³Π»ΠΈΡΠ΅ΡΠΈΠ΄ΠΎΠ² ΠΆΠΈΡΠ½ΡΡ
ΠΊΠΈΡΠ»ΠΎΡ ΠΈ ΠΏΡΠΈΠΌΠ΅Π½ΡΠ΅ΡΡΡ Π² ΠΏΠΈΡΠ΅Π²ΠΎΠΉ ΠΏΡΠΎΠΌΡΡΠ»Π΅Π½Π½ΠΎΡΡΠΈ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ Π΄ΠΎΠ±Π°Π²ΠΊΠΈΒ ΡΠΌΡΠ»ΡΠ³Π°ΡΠΎΡΠ°-ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·Π°ΡΠΎΡΠ°. ΠΠ°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΡΠ°ΡΡΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΡΡΡ ΠΏΡΠΈ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²Π΅ ΠΌΠ°ΡΠ³Π°ΡΠΈΠ½Π°, ΠΌΠΎΡΠΎΠΆΠ΅Π½ΠΎΠ³ΠΎ, ΠΌΠ°ΠΉΠΎΠ½Π΅Π·ΠΎΠ², ΠΉΠΎΠ³ΡΡΡΠΎΠ² ΠΈ Π΄ΡΡΠ³ΠΈΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² Ρ Π²ΡΡΠΎΠΊΠΈΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ ΠΆΠΈΡΠ°. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π° ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° Π³Π°Π·ΠΎΡ
ΡΠΎΠΌΠ°ΡΠΎΠ³ΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎΠ³ΠΎ ΡΠΎΡΡΠ°Π²Π° ΠΏΠΈΡΠ΅Π²ΡΡ
ΡΠΌΡΠ»ΡΠ³Π°ΡΠΎΡΠΎΠ² Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΌΠΎΠ½ΠΎΠ³Π»ΠΈΡΠ΅ΡΠΈΠ΄ΠΎΠ² (Π471). Π‘ΡΡΠ½ΠΎΡΡΡ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠΈ Π·Π°ΠΊΠ»ΡΡΠ°Π΅ΡΡΡ Π² ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΠΈ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² ΠΏΡΠΎΠ±Ρ Π² Π±ΠΎΠ»Π΅Π΅ Π»Π΅ΡΡΡΠΈΠ΅ ΡΠΈΠ»ΠΈΠ»ΡΠ½ΡΠ΅ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄Π½ΡΠ΅ Π² ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠΈ ΠΏΠΈΡΠΈΠ΄ΠΈΠ½Π° ΠΈ N-ΠΌΠ΅ΡΠΈΠ»-N-(ΡΡΠΈΠΌΠ΅ΡΠΈΠ»ΡΠΈΠ»ΠΈΠ»)ΡΡΠΈΡΡΠΎΡΠ°ΡΠ΅ΡΠ°ΠΌΠΈΠ΄Π° ΠΈ ΠΏΠΎΡΠ»Π΅Π΄ΡΡΡΠ΅ΠΌ Π³Π°Π·ΠΎΡ
ΡΠΎΠΌΠ°ΡΠΎΠ³ΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΌ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ Π²Π½ΡΡΡΠ΅Π½Π½ΠΈΡ
ΡΡΠ°Π½Π΄Π°ΡΡΠΎΠ² (ΠΏΡΠΎΠΏΠΈΠ»Π΅Π½Π³Π»ΠΈΠΊΠΎΠ»Ρ ΠΈ ΡΡΠΈΠΊΠ°ΠΏΡΠΈΠ½). ΠΠ½Π°Π»ΠΈΠ· ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ Π½Π° Π³Π°Π·ΠΎΠ²ΠΎΠΌ Ρ
ΡΠΎΠΌΠ°ΡΠΎΠ³ΡΠ°ΡΠ΅ Bruker 451 GC Ρ ΠΏΠ»Π°ΠΌΠ΅Π½Π½ΠΎ-ΠΈΠΎΠ½ΠΈΠ·Π°ΡΠΈΠΎΠ½Π½ΡΠΌ Π΄Π΅ΡΠ΅ΠΊΡΠΎΡΠΎΠΌ, ΠΊΠ°ΠΏΠΈΠ»Π»ΡΡΠ½Π°Ρ ΠΊΠΎΠ»ΠΎΠ½ΠΊΠ°Β β BR-5ht (100 %-Π΄ΠΈΠΌΠ΅ΡΠΈΠ»ΠΏΠΎΠ»ΠΈΡΠΈΠ»ΠΎΠΊΡΠ°Π½). ΠΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΡ ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΡΠ΅Π°ΠΊΡΠΈΠΈ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΠ»ΠΈ Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ ΠΌΠ°ΡΡ-ΡΠΏΠ΅ΠΊΡΡΠΎΠΌΠ΅ΡΡΠ° ScionTQ ΠΈ Π±ΠΈΠ±Π»ΠΈΠΎΡΠ΅ΠΊΠΈ ΠΌΠ°ΡΡ-ΡΠΏΠ΅ΠΊΡΡΠΎΠ² NIST11. ΠΡΠ±ΡΠ°Π½Π½ΡΠ΅ ΡΡΠ»ΠΎΠ²ΠΈΡ Ρ
ΡΠΎΠΌΠ°ΡΠΎΠ³ΡΠ°ΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·ΡΡΡΡΡ Π½Π΅Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΏΡΠΎΠ΄ΠΎΠ»ΠΆΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡΡ ΠΏΡΠΈΠ±ΠΎΡΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° (35 ΠΌΠΈΠ½) ΠΈ ΠΎΡΡΡΡΡΡΠ²ΠΈΠ΅ΠΌ ΠΏΠ΅ΡΠ΅ΠΊΡΡΠ²Π°Π½ΠΈΡ ΠΏΠΈΠΊΠΎΠ². Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ Π³Π»ΠΈΡΠ΅ΡΠΈΠ½Π° ΠΈ Π΄ΠΈΠ³Π»ΠΈΡΠ΅ΡΠΈΠ½Π°, ΡΠ²ΠΎΠ±ΠΎΠ΄Π½ΡΡ
ΠΆΠΈΡΠ½ΡΡ
ΠΊΠΈΡΠ»ΠΎΡ, ΠΌΠΎΠ½ΠΎ-, Π΄ΠΈ- ΠΈ ΡΡΠΈΠ³Π»ΠΈΡΠ΅ΡΠΈΠ΄ΠΎΠ²Π² ΡΠ΅ΠΌΠΈ ΠΊΠΎΠΌΠΌΠ΅ΡΡΠ΅ΡΠΊΠΈΡ
ΠΎΠ±ΡΠ°Π·ΡΠ°Ρ
.ΠΠ»ΡΡΠ΅Π²ΡΠ΅ ΡΠ»ΠΎΠ²Π°: ΡΠΌΡΠ»ΡΠ³Π°ΡΠΎΡ Π471, ΠΌΠΎΠ½ΠΎΠ³Π»ΠΈΡΠ΅ΡΠΈΠ΄Ρ ΠΆΠΈΡΠ½ΡΡ
ΠΊΠΈΡΠ»ΠΎΡ, Π³Π°Π·ΠΎΠ²Π°Ρ Ρ
ΡΠΎΠΌΠ°ΡΠΎΠ³ΡΠ°ΡΠΈΡDOI:Β http://dx.doi.org/10.15826/analitika.2015.19.2.00
Development of computational models for the prediction of the toxicity of nanomaterials
Extended abstrac
Determination of the quantitative composition of food emulsifier E471 by gas chromatography
ΠΠΈΡΠ΅Π²Π°Ρ Π΄ΠΎΠ±Π°Π²ΠΊΠ° E471 ΠΎΠ±ΠΎΠ·Π½Π°ΡΠ°Π΅Ρ ΡΡΠ΄ ΠΌΠΎΠ½ΠΎΠ³Π»ΠΈΡΠ΅ΡΠΈΠ΄ΠΎΠ² ΠΈ Π΄ΠΈΠ³Π»ΠΈΡΠ΅ΡΠΈΠ΄ΠΎΠ² ΠΆΠΈΡΠ½ΡΡ
ΠΊΠΈΡΠ»ΠΎΡ ΠΈ ΠΏΡΠΈΠΌΠ΅Π½ΡΠ΅ΡΡΡ Π² ΠΏΠΈΡΠ΅Π²ΠΎΠΉ ΠΏΡΠΎΠΌΡΡΠ»Π΅Π½Π½ΠΎΡΡΠΈ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ Π΄ΠΎΠ±Π°Π²ΠΊΠΈ ΡΠΌΡΠ»ΡΠ³Π°ΡΠΎΡΠ°-ΡΡΠ°Π±ΠΈΠ»ΠΈΠ·Π°ΡΠΎΡΠ°. ΠΠ°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΡΠ°ΡΡΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΡΡΡ ΠΏΡΠΈ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²Π΅ ΠΌΠ°ΡΠ³Π°ΡΠΈΠ½Π°, ΠΌΠΎΡΠΎΠΆΠ΅Π½ΠΎΠ³ΠΎ, ΠΌΠ°ΠΉΠΎΠ½Π΅Π·ΠΎΠ², ΠΉΠΎΠ³ΡΡΡΠΎΠ² ΠΈ Π΄ΡΡΠ³ΠΈΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² Ρ Π²ΡΡΠΎΠΊΠΈΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ ΠΆΠΈΡΠ°. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π° ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° Π³Π°Π·ΠΎΡ
ΡΠΎΠΌΠ°ΡΠΎΠ³ΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎΠ³ΠΎ ΡΠΎΡΡΠ°Π²Π° ΠΏΠΈΡΠ΅Π²ΡΡ
ΡΠΌΡΠ»ΡΠ³Π°ΡΠΎΡΠΎΠ² Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΌΠΎΠ½ΠΎΠ³Π»ΠΈΡΠ΅ΡΠΈΠ΄ΠΎΠ² (Π471). Π‘ΡΡΠ½ΠΎΡΡΡ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠΈ Π·Π°ΠΊΠ»ΡΡΠ°Π΅ΡΡΡ Π² ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΠΈ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² ΠΏΡΠΎΠ±Ρ Π² Π±ΠΎΠ»Π΅Π΅ Π»Π΅ΡΡΡΠΈΠ΅ ΡΠΈΠ»ΠΈΠ»ΡΠ½ΡΠ΅ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄Π½ΡΠ΅ Π² ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠΈ ΠΏΠΈΡΠΈΠ΄ΠΈΠ½Π° ΠΈ N-ΠΌΠ΅ΡΠΈΠ»-N-(ΡΡΠΈΠΌΠ΅ΡΠΈΠ»ΡΠΈΠ»ΠΈΠ»)ΡΡΠΈΡΡΠΎΡΠ°ΡΠ΅ΡΠ°ΠΌΠΈΠ΄Π° ΠΈ ΠΏΠΎΡΠ»Π΅Π΄ΡΡΡΠ΅ΠΌ Π³Π°Π·ΠΎΡ
ΡΠΎΠΌΠ°ΡΠΎΠ³ΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΌ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ Π²Π½ΡΡΡΠ΅Π½Π½ΠΈΡ
ΡΡΠ°Π½Π΄Π°ΡΡΠΎΠ² (ΠΏΡΠΎΠΏΠΈΠ»Π΅Π½Π³Π»ΠΈΠΊΠΎΠ»Ρ ΠΈ ΡΡΠΈΠΊΠ°ΠΏΡΠΈΠ½). ΠΠ½Π°Π»ΠΈΠ· ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ Π½Π° Π³Π°Π·ΠΎΠ²ΠΎΠΌ Ρ
ΡΠΎΠΌΠ°ΡΠΎΠ³ΡΠ°ΡΠ΅ Bruker 451 GC Ρ ΠΏΠ»Π°ΠΌΠ΅Π½Π½ΠΎ-ΠΈΠΎΠ½ΠΈΠ·Π°ΡΠΈΠΎΠ½Π½ΡΠΌ Π΄Π΅ΡΠ΅ΠΊΡΠΎΡΠΎΠΌ, ΠΊΠ°ΠΏΠΈΠ»Π»ΡΡΠ½Π°Ρ ΠΊΠΎΠ»ΠΎΠ½ΠΊΠ° - BR-5ht (100 %-Π΄ΠΈΠΌΠ΅ΡΠΈΠ»ΠΏΠΎΠ»ΠΈΡΠΈΠ»ΠΎΠΊΡΠ°Π½). ΠΠ΄Π΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΡ ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΡΠ΅Π°ΠΊΡΠΈΠΈ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΠ»ΠΈ Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ ΠΌΠ°ΡΡ-ΡΠΏΠ΅ΠΊΡΡΠΎΠΌΠ΅ΡΡΠ° ScionTQ ΠΈ Π±ΠΈΠ±Π»ΠΈΠΎΡΠ΅ΠΊΠΈ ΠΌΠ°ΡΡ-ΡΠΏΠ΅ΠΊΡΡΠΎΠ² NIST11. ΠΡΠ±ΡΠ°Π½Π½ΡΠ΅ ΡΡΠ»ΠΎΠ²ΠΈΡ Ρ
ΡΠΎΠΌΠ°ΡΠΎΠ³ΡΠ°ΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·ΡΡΡΡΡ Π½Π΅Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΏΡΠΎΠ΄ΠΎΠ»ΠΆΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡΡ ΠΏΡΠΈΠ±ΠΎΡΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° (35 ΠΌΠΈΠ½) ΠΈ ΠΎΡΡΡΡΡΡΠ²ΠΈΠ΅ΠΌ ΠΏΠ΅ΡΠ΅ΠΊΡΡΠ²Π°Π½ΠΈΡ ΠΏΠΈΠΊΠΎΠ². Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ Π³Π»ΠΈΡΠ΅ΡΠΈΠ½Π° ΠΈ Π΄ΠΈΠ³Π»ΠΈΡΠ΅ΡΠΈΠ½Π°, ΡΠ²ΠΎΠ±ΠΎΠ΄Π½ΡΡ
ΠΆΠΈΡΠ½ΡΡ
ΠΊΠΈΡΠ»ΠΎΡ, ΠΌΠΎΠ½ΠΎ-, Π΄ΠΈ- ΠΈ ΡΡΠΈΠ³Π»ΠΈΡΠ΅ΡΠΈΠ΄ΠΎΠ²Π² ΡΠ΅ΠΌΠΈ ΠΊΠΎΠΌΠΌΠ΅ΡΡΠ΅ΡΠΊΠΈΡ
ΠΎΠ±ΡΠ°Π·ΡΠ°Ρ
.Nutritional supplement E471 designates number of monoglycerides and diglycerides of fatty acidsand applied in the food industry as an emulsifier-stabilizer additive. It is most often used by production of margarine, ice cream, mayonnaise, yogurts and other products with the high content of fat. The technique of gas chromatographic determination of the quantitative composition of food emulsifiers on the basis of monoglycerides (E471) was developed. The essence consists in transformation of components of sample into more flying silyl derivatives in the presence of pyridine and N-Methyl-N-(trimethylsilyl)trifluoroacetamide and the subsequent gas chromatographic determination with application of internal standards (propylene glycol and tricaprin). Theanalysis was carried out on a gas chromatograph Bruker 451 GC with a flame ionization detector, capillary column - BR-5ht (100 %-dimethylpolysiloxane). Identification of the reaction products was performed with application of a mass spectrometer Scion TQ and library of mass spectrums NIST11. Selected chromatographic conditions are characterized by a short duration of the instrument analysis (35 min) and the absence of overlapping peaks. The content of glycerin and a diglycerin, free fatty acids, mono-, di- and triglycerides in seven commercial samples is established
Some tends and trends in modern english mass media discourse (based on tv food advertising projects)
The focus of the paper is on the markers characteristic of British and American TV projects aimed at advertising foo
Problem-solving tasks in studying agrarian question of history of Kazakhstan
Β© 2017 Serials Publications.The relevance of the article is to show the problem method of training and a possibility of its application by means of introduction in process of training at lessons of history of Kazakhstan of problem and informative tasks is considered. The purpose, types and stages of work of this technology are defined. Concrete examples of tasks for pupils of 8 classes as the problem of agrarian crisis in the territory of Kazakhstan during his stay as a part of the Russian Empire is subject to consideration (the end of XIX - the beginning of the 20th centuries) are given that corresponds to program material of this age category. The importance of application of the methods aimed at independent search of knowledge and more expanded comprehension of knowledge of pupils reveals. The statΓ₯ stage of experiment where the initial level of knowledge of pupils reveals is shown in article and the importance of application of problem tasks at further stages of work is proved, questions for questioning at identification of initial knowledge of a subject, and also direct steps in work on drawing up and application of similar tasks are offered. Article Submissions are of practical value for children. having entered life, the child will be more protected from stresses. Problem training forms harmoniously developed creative person capable to think logically, find solutions in various problem situations, capable to systematize and accumulate knowledge, capable to high introspection, self-development itself also corrections. Continuous setting of problem situations leads to the loss of fear by a child to face problems, a child seeks ways to resolve them, and the creative personality, always capable to search is formed
Aspen Tension Wood Fibers Contain Ξ²-(1β4)-Galactans and Acidic Arabinogalactans Retained by Cellulose Microfibrils in Gelatinous Walls
Contractile cell walls are found in various plant organs and tissues such as tendrils, contractile roots, and tension wood. The tension-generating mechanism is not known but is thought to involve special cell wall architecture. We previously postulated that tension could result from the entrapment of certain matrix polymers within cellulose microfibrils. As reported here, this hypothesis was corroborated by sequential extraction and analysis of cell wall polymers that are retained by cellulose microfibrils in tension wood and normal wood of hybrid aspen (Populus tremula Γ Populus tremuloides). Ξ²-(1β4)-Galactan and type II arabinogalactan were the main large matrix polymers retained by cellulose microfibrils that were specifically found in tension wood. Xyloglucan was detected mostly in oligomeric form in the alkali-labile fraction and was enriched in tension wood. Ξ²-(1β4)-Galactan and rhamnogalacturonan I backbone epitopes were localized in the gelatinous cell wall layer. Type II arabinogalactans retained by cellulose microfibrils had a higher content of (methyl)glucuronic acid and galactose in tension wood than in normal wood. Thus, Ξ²-(1β4)-galactan and a specialized form of type II arabinogalactan are trapped by cellulose microfibrils specifically in tension wood and, thus, are the main candidate polymers for the generation of tensional stresses by the entrapment mechanism. We also found high Ξ²-galactosidase activity accompanying tension wood differentiation and propose a testable hypothesis that such activity might regulate galactan entrapment and, thus, mechanical properties of cell walls in tension wood.This work was supported by the Swedish Governmental Agency for Innovation Systems, the Swedish Research Council, the Russian Foundation for Basic Research (grant nos. 15β04β02560 and 15β04β05721), and the Biotechnology and Biological Sciences Research Council (grant no. BB/G016240/1 and funds from the Sustainable Energy Centre Cell Wall Sugars Programme).This is the author accepted manuscript. The final version is available from the American Society of Plant Biologists via http://dx.doi.org/10.β1104/βpp.β15.β0069
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