122 research outputs found
A study of the electric response of He II at the excitation of second sound waves
We report an experimental investigation of the electric response of superfluid helium. Our results confirm the
presence of electric potential that appears at the relative oscillatory motion of normal fluid and superfluid components
in helium generated by the heater. The resonance of the electric potential was observed in the first four
harmonics. A suggested method for the detection of the electric response allows the required resonance peak to
be distinguished from spurious signals. Our results are in qualitative agreement with the data published by previous
researchers. The reasons for the discrepancy in the measured values of the potential difference are discussed
ΠΠ»Π³ΠΎΡΠΈΡΠΌ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ ΠΌΠ°ΡΡ-ΡΠΏΠ΅ΠΊΡΡΠΎΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΈΡ Π΄Π°Π½Π½ΡΡ Π΄Π»Ρ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΏΠ°Π½Π΅Π»ΠΈ ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΡΡ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ Π½Π° ΠΏΡΠΈΠΌΠ΅ΡΠ΅ ΠΏΠΎΠΈΡΠΊΠ° ΠΌΠ°ΡΠΊΠ΅ΡΠΎΠ² ΠΌΠ΅ΡΠ°ΡΡΠ°Π·ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΈ ΡΠ°ΠΊΠ΅ ΠΌΠΎΠ»ΠΎΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ
A pathology diagnostic using molecular marker is a perspective direction of clinical medicine. Mass-spectrometry (MS) is a one of methods, which are used for obtaining information about molecular profiles. Selection of species, essential for classification βcase/control is an important task for data processing. Pipeline of data processing has been proposed using MS data, obtained during analysis of tumor breast tissue samples and health breast tissue samples, with the aim of metastasis marker selection. As a result, selection of lipid markers that belong to classes, related to metastasis and proliferation processes, makes it possible to create high sensitivity diagnostic model, based on logistic regression. The proposed method is applicable for data processing, obtained by MS analysis of other βomicsβ: metabolome, proteome, glycome.ΠΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠ° ΠΏΠ°ΡΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΏΠΎ ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΡΠΌ ΠΌΠ°ΡΠΊΠ΅ΡΠ°ΠΌ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΡΠΌ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΠ΅Π΄ΠΈΡΠΈΠ½Ρ, Π² ΠΊΠΎΡΠΎΡΠΎΠΌ ΠΌΠ°ΡΡ-ΡΠΏΠ΅ΠΊΡΡΠΎΠΌΠ΅ΡΡΠΈΡ (ΠΠ‘) ΡΡΠ»ΡΠΆΠΈΡ ΠΎΠ΄Π½ΠΈΠΌ ΠΈΠ· ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ², ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΠΌΡΡ
Π΄Π»Ρ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΈ ΠΎ ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΡΡ
ΠΏΡΠΎΡΠΈΠ»ΡΡ
. Π ΠΊΠΎΠ½ΡΠ΅ΠΊΡΡΠ΅ ΠΈΠ·Π²Π»Π΅ΡΠ΅Π½ΠΈΡ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ, ΠΈΠ³ΡΠ°ΡΡΠΈΡ
ΠΊΠ»ΡΡΠ΅Π²ΡΡ ΡΠΎΠ»Ρ Π΄Π»Ρ ΠΊΠ»Π°ΡΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ ΠΏΠ°ΡΠΎΠ»ΠΎΠ³ΠΈΡ/Π±ΠΎΠ»Π΅Π·Π½Ρ, Π²Π°ΠΆΠ½ΠΎΠ΅ Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅ ΠΈΠΌΠ΅Π΅Ρ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠ° ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
Π΄Π°Π½Π½ΡΡ
, ΡΠ°ΡΡΠΎ Π²ΠΊΠ»ΡΡΠ°ΡΡΠΈΡ
Π½Π΅ΡΠΊΠΎΠ»ΡΠΊΠΎ ΡΠΎΡΠ΅Π½ Π΄Π΅ΡΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ. Π Π΄Π°Π½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΠ΅ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½ Π°Π»Π³ΠΎΡΠΈΡΠΌ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ Π΄Π°Π½Π½ΡΡ
Π½Π° ΠΏΡΠΈΠΌΠ΅ΡΠ΅ Π΄Π°Π½Π½ΡΡ
ΠΠ‘, ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
ΠΏΡΠΈ Π°Π½Π°Π»ΠΈΠ·Π΅ ΠΎΠΏΡΡ
ΠΎΠ»Π΅Π²ΠΎΠΉ ΡΠΊΠ°Π½ΠΈ ΠΈ Π·Π΄ΠΎΡΠΎΠ²ΠΎΠΉ ΠΌΠΎΠ»ΠΎΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ, Ρ ΡΠ΅Π»ΡΡ Π²ΡΠ΄Π΅Π»Π΅Π½ΠΈΡ Π»ΠΈΠΏΠΈΠ΄Π½ΡΡ
ΠΌΠ°ΡΠΊΠ΅ΡΠΎΠ² ΠΌΠ΅ΡΠ°ΡΡΠ°Π·ΠΈΡΠΎΠ²Π°Π½ΠΈΡ. Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ Π΅Π³ΠΎ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΠΈ ΠΏΠΎΠ»ΡΡΠ΅Π½ Π½Π°Π±ΠΎΡ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ, ΠΎΡΠ½ΠΎΡΡΡΠΈΡ
ΡΡ ΠΊ ΠΊΠ»Π°ΡΡΠ°ΠΌ Π»ΠΈΠΏΠΈΠ΄ΠΎΠ², ΡΠ²ΡΠ·Π°Π½Π½ΡΡ
Ρ ΠΏΡΠΎΡΠ΅ΡΡΠ°ΠΌΠΈ ΠΌΠ΅ΡΠ°ΡΡΠ°Π·ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈ ΠΏΡΠΎΠ»ΠΈΡΠ΅ΡΠ°ΡΠΈΠΈ, ΠΈ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡΠΈΡ
ΠΏΠΎΡΡΡΠΎΠΈΡΡ Π²ΡΡΠΎΠΊΠΎΡΡΠ²ΡΡΠ²ΠΈΡΠ΅Π»ΡΠ½ΡΡ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΡΡ ΠΌΠΎΠ΄Π΅Π»Ρ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π»ΠΎΠ³ΠΈΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ΅Π³ΡΠ΅ΡΡΠΈΠΈ. ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΡΠΉ ΠΌΠ΅ΡΠΎΠ΄ ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΠΎ ΠΏΡΠΈΠ³ΠΎΠ΄Π΅Π½ Π΄Π»Ρ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ Π΄Π°Π½Π½ΡΡ
ΠΠ‘, ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
ΠΏΡΠΈ Π°Π½Π°Π»ΠΈΠ·Π΅ ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠΈΠ»Ρ Π±ΠΈΠΎΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° Π΄ΡΡΠ³ΠΎΠ³ΠΎ Π±Π°Π·ΠΈΡΠ° (ΠΌΠ΅ΡΠ°Π±ΠΎΠ»ΠΎΠΌ, ΠΏΡΠΎΡΠ΅ΠΎΠΌ, Π³Π»ΠΈΠΊΠΎΠΌ)
ΠΠΎΠ»ΡΡΠΈΠΊΠ° ΡΠ°Π΄ΡΠ½ΡΡΠΊΠΎΡ Π²Π»Π°Π΄ΠΈ Π² ΠΆΠΈΡΠ»ΠΎΠ²ΠΎΠΌΡ ΠΏΠΈΡΠ°Π½Π½Ρ ΡΠ° ΠΉΠΎΠ³ΠΎ Π²ΠΈΡΡΡΠ΅Π½Π½Ρ Π² Π₯Π°ΡΠΊΠΎΠ²Ρ (1920 β 1934 ΡΡ.)
Chagovets T.V. Policy of the Soviet power in the problem of housing and its solution in Kharkiv (1920β1934). β Manuscript. Thesis for a Candidate degree in History. Speciality 07.00.01 β History of Ukraine. β Karazin Kharkiv National University, Kharkiv, 2019. The problem of housing has always been the major problem in society. Soviet housing policy is kind of experiment in the field of housing, that has no anology in the world. This year is a centenary since housing policy of the exception of private property on land and movables, of changes in the system of housing management and peopleβs activity, of the formation of labor and common collectives and the development of state departmental form of property in lodgings, of decentralized territorial placing of industry, etc. was provided. All these processes were fully pronounced in Kharkiv (1920β1934). They rebuilt the city completely: new types of dwellings emerged, such as house-communes, houses of specialists, one and two storied terraced houses, which were built according to the concept of garden city, and social town of KhTP. The study is aimed to thoroughly investigate the policy of the Soviet power in problem of housing in Ukraine in the 20-30s of the 20 century using the example of Kharkiv. Π Π΄ΠΈΡΠ΅ΡΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΠ΅ Π²ΠΏΠ΅ΡΠ²ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΡΠ΅ΡΡΡ ΠΆΠΈΠ»ΠΈΡΠ½Π°Ρ ΠΏΠΎΠ»ΠΈΡΠΈΠΊΠ° ΡΠΎΠ²Π΅ΡΡΠΊΠΎΠΉ Π²Π»Π°ΡΡΠΈ Π² ΡΡΠΎΠ»ΠΈΡΠ½ΠΎΠΌ Π₯Π°ΡΡΠΊΠΎΠ²Π΅. ΠΠ½Π°Π»ΠΈΠ·ΠΈΡΡΡΡΡΡ ΠΏΡΠΎΠ±Π»Π΅ΠΌΡ ΠΆΠΈΠ»ΠΈΡΠ½ΠΎΠ³ΠΎ ΠΊΡΠΈΠ·ΠΈΡΠ° Π² 20-30-Π΅ Π³ΠΎΠ΄Ρ Π₯Π₯ Π²Π΅ΠΊΠ°. Π Π°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°ΡΡΡΡ ΡΠΎΡΠΈΠ°Π»ΡΠ½ΠΎΠΊΡΠ»ΡΡΡΡΠ½ΡΠ΅ ΠΈ ΠΈΠ΄Π΅ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΡΠ»ΠΎΠ²ΠΈΡ, ΠΊΠΎΡΠΎΡΡΠ΅ ΡΠΏΠΎΡΠΎΠ±ΡΡΠ²ΠΎΠ²Π°Π»ΠΈ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΆΠΈΠ»ΠΈΡΠ½ΠΎΠΉ ΠΏΠΎΠ»ΠΈΡΠΈΠΊΠΈ ΡΠΎΠ²Π΅ΡΡΠΊΠΎΠΉ Π²Π»Π°ΡΡΠΈ. ΠΠ΅ΡΠ°Π»ΡΠ½ΠΎ ΠΈΠ·ΡΡΠ°Π΅ΡΡΡ ΡΡΡΡΠΊΡΡΡΠ° ΠΈ ΡΡΠ±ΡΠ΅ΠΊΡ Π³ΠΎΡΡΠ΄Π°ΡΡΡΠ²Π΅Π½Π½ΠΎΠ³ΠΎ Π²Π΅Π΄Π΅Π½ΠΈΡ ΠΈ ΡΠ°ΡΠΏΠΎΡΡΠΆΠ΅Π½ΠΈΡ ΠΆΠΈΠ»ΡΠ΅ΠΌ, ΡΠ΅Π½ΠΎΠΌΠ΅Π½ Π½ΠΎΠ²ΠΎΠΉ ΠΆΠΈΠ»ΠΈΡΠ½ΠΎΠΉ ΠΏΠΎΠ»ΠΈΡΠΈΠΊΠΈ ΠΈ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠΈ ΡΠΈΠ½Π°Π½ΡΠΎΠ²ΠΎΠ³ΠΎ ΠΈ ΠΎΡΠ³Π°Π½ΠΈΠ·Π°ΡΠΈΠΎΠ½Π½ΠΎ-ΡΠΏΡΠ°Π²Π»Π΅Π½ΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½ΠΈΡ Π² ΠΆΠΈΠ»ΠΈΡΠ½ΠΎΠΉ ΡΡΠ΅ΡΠ΅. Π Π΄Π°Π½Π½ΠΎΠΌ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΈ Π΄Π΅ΡΠ°Π»ΡΠ½ΠΎ ΠΎΡ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·ΠΎΠ²Π°Π½Ρ ΡΠΎΡΠΌΡ ΠΆΠΈΠ»ΠΈΡΠ½ΠΎΠ³ΠΎ Π²Π΅Π΄Π΅Π½ΠΈΡ: Π³ΠΎΡΡΠ΄Π°ΡΡΡΠ²Π΅Π½Π½Π°Ρ, ΠΊΠΎΠΎΠΏΠ΅ΡΠ°ΡΠΈΠ²Π½Π°Ρ, ΡΠ°ΡΡΠ½Π°Ρ. ΠΠ²ΡΠΎΡ ΠΏΡΠΈΡ
ΠΎΠ΄ΠΈΡ ΠΊ Π²ΡΠ²ΠΎΠ΄Ρ, ΡΡΠΎ ΡΠΎΠ²Π΅ΡΡΠΊΠΎΠΉ Π²Π»Π°ΡΡΠΈ ΡΠ΄Π°Π»ΠΎΡΡ Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΠΏΠΎΠ»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈ ΡΠΊΠΎΠ½ΠΎΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΡΠ°Π³ΠΎΠ² ΠΎΡΠ³Π°Π½ΠΈΠ·ΠΎΠ²Π°ΡΡ Π½Π°ΡΠ΅Π»Π΅Π½ΠΈΠ΅ ΠΈ ΡΡΠΈΠΌΡΠ»ΠΈΡΠΎΠ²Π°ΡΡ Π΅Π³ΠΎ Π·Π°Π±ΠΎΡΡ ΠΎ ΠΆΠΈΠ»ΡΠ΅. ΠΡΠ»ΠΎ ΡΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΎ ΠΆΠΈΠ»ΠΈΡΠ½ΠΎΠ΅ Π·Π°ΠΊΠΎΠ½ΠΎΠ΄Π°ΡΠ΅Π»ΡΡΡΠ²ΠΎ, Π² ΡΠ°ΠΌΠΊΠ°Ρ
ΠΊΠΎΡΠΎΡΠΎΠ³ΠΎ Π²ΡΠ΅ ΠΏΡΠΎΡΠ΅ΡΡΡ, ΠΊΠ°ΡΠ°ΡΡΠΈΠ΅ΡΡ ΠΆΠΈΠ»ΡΡ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΠ»ΠΈΡΡ ΠΈ Π·Π°Π²ΠΈΡΠ΅Π»ΠΈ ΠΎΡ Π³ΠΎΡΡΠ΄Π°ΡΡΡΠ²Π΅Π½Π½ΡΡ
ΠΎΡΠ³Π°Π½ΠΎΠ² ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΈ ΡΠ°ΡΠΏΠΎΡΡΠΆΠ΅Π½ΠΈΡ ΠΆΠΈΠ»ΡΠ΅ΠΌ. Π€ΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ Π΅Π΄ΠΈΠ½ΠΎΠ³ΠΎ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π² ΠΎΠ±Π»Π°ΡΡΠΈ ΠΆΠΈΠ»ΠΈΡΠ½ΠΎΠΉ ΠΏΠΎΠ»ΠΈΡΠΈΠΊΠΈ, ΠΎΠ±ΡΠ΅Π³ΠΎΡΡΠ΄Π°ΡΡΡΠ²Π΅Π½Π½ΠΎΠ΅ ΠΏΠ»Π°Π½ΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ»ΠΎ ΠΏΠΎΡΡΡΠΎΠΈΡΡ Π² Π₯Π°ΡΡΠΊΠΎΠ²Π΅ Π³ΡΠ°Π΄ΠΎΠΎΠ±ΡΠ°Π·ΡΡΡΠΈΠ΅ ΠΏΡΠ΅Π΄ΠΏΡΠΈΡΡΠΈΡ Ρ ΡΠ°Π·Π²ΠΈΡΠΎΠΉ ΠΆΠΈΠ»ΠΈΡΠ½ΠΎΠΉ ΠΈΠ½ΡΡΠ°ΡΡΡΡΠΊΡΡΡΠΎΠΉ, ΡΡΠΎ Π²ΡΠ²Π΅Π»ΠΎ Π³ΠΎΡΠΎΠ΄ Π½Π° Π½ΠΎΠ²ΡΠΉ ΠΈΠ½Π΄ΡΡΡΡΠΈΠ°Π»ΡΠ½ΡΠΉ ΡΡΠΎΠ²Π΅Π½Ρ.Π£ Π΄ΠΈΡΠ΅ΡΡΠ°ΡΡΠΉΠ½ΡΠΉ ΡΠΎΠ±ΠΎΡΡ Π²ΠΏΠ΅ΡΡΠ΅ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΡΡΡΡΡΡ ΠΆΠΈΡΠ»ΠΎΠ²Π° ΠΏΠΎΠ»ΡΡΠΈΠΊΠ° ΡΠ°Π΄ΡΠ½ΡΡΠΊΠΎΡ Π²Π»Π°Π΄ΠΈ Π² ΡΡΠΎΠ»ΠΈΡΠ½ΠΎΠΌΡ Π₯Π°ΡΠΊΠΎΠ²Ρ. ΠΠ½Π°Π»ΡΠ·ΡΡΡΡΡΡ ΠΏΡΠΎΠ±Π»Π΅ΠΌΠΈ ΠΆΠΈΡΠ»ΠΎΠ²ΠΎΡ ΠΊΡΠΈΠ·ΠΈ Π² 20 β 30-ΡΡ ΡΠΎΠΊΠΈ Π₯Π₯ ΡΡ. Π ΠΎΠ·Π³Π»ΡΠ΄Π°ΡΡΡΡΡ ΡΠΎΡΡΠ°Π»ΡΠ½ΠΎ-ΠΊΡΠ»ΡΡΡΡΠ½Ρ ΡΠ° ΡΠ΄Π΅ΠΎΠ»ΠΎΠ³ΡΡΠ½Ρ ΠΏΠ΅ΡΠ΅Π΄ΡΠΌΠΎΠ²ΠΈ, ΡΠΎ ΡΠΏΡΠΈΡΠ»ΠΈ ΡΠΎΡΠΌΡΠ²Π°Π½Π½Ρ ΠΆΠΈΡΠ»ΠΎΠ²ΠΎΡ ΠΏΠΎΠ»ΡΡΠΈΠΊΠΈ ΡΠ°Π΄ΡΠ½ΡΡΠΊΠΎΡ Π²Π»Π°Π΄ΠΈ. ΠΠΎΠΊΠ»Π°Π΄Π½ΠΎ Π²ΠΈΠ²ΡΠ°ΡΡΡΡΡ ΡΡΡΡΠΊΡΡΡΠ° ΡΠ° ΡΡΠ±βΡΠΊΡ Π΄Π΅ΡΠΆΠ°Π²Π½ΠΎΠ³ΠΎ Π²Π΅Π΄Π΅Π½Π½Ρ ΡΠ° ΠΊΠΎΡΠΈΡΡΡΠ²Π°Π½Π½Ρ ΠΆΠΈΡΠ»ΠΎΠΌ, ΡΠ΅Π½ΠΎΠΌΠ΅Π½ Π½ΠΎΠ²ΠΎΡ ΠΆΠΈΡΠ»ΠΎΠ²ΠΎΡ ΠΏΠΎΠ»ΡΡΠΈΠΊΠΈ ΠΉ ΠΎΡΠΎΠ±Π»ΠΈΠ²ΠΎΡΡΡ ΡΡΠ½Π°Π½ΡΠΎΠ²ΠΎΠ³ΠΎ ΡΠ° ΠΎΡΠ³Π°Π½ΡΠ·Π°ΡΡΠΉΠ½ΠΎ-ΡΠΏΡΠ°Π²Π»ΡΠ½ΡΡΠΊΠΎΠ³ΠΎ Π·Π°Π±Π΅Π·ΠΏΠ΅ΡΠ΅Π½Π½Ρ ΠΆΠΈΡΠ»ΠΎΠ²ΠΎΡ Π³Π°Π»ΡΠ·Ρ. Π£ ΡΠΎΠ±ΠΎΡΡ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΠΎ ΡΡ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·ΠΎΠ²Π°Π½Ρ ΡΠΎΡΠΌΠΈ ΠΆΠΈΡΠ»ΠΎΠ²ΠΎΠ³ΠΎ Π²Π΅Π΄Π΅Π½Π½Ρ β Π΄Π΅ΡΠΆΠ°Π²Π½Π°, ΠΊΠΎΠΎΠΏΠ΅ΡΠ°ΡΠΈΠ²Π½Π° ΡΠ° ΠΏΡΠΈΠ²Π°ΡΠ½Π°. ΠβΡΡΠΎΠ²Π°Π½ΠΎ, ΡΠΎ ΡΠ°Π΄ΡΠ½ΡΡΠΊΡΠΉ Π²Π»Π°Π΄Ρ Π²Π΄Π°Π»ΠΎΡΡ Π·Π° Π΄ΠΎΠΏΠΎΠΌΠΎΠ³ΠΎΡ ΠΏΠΎΠ»ΡΡΠΈΡΠ½ΠΈΡ
ΡΠ° Π΅ΠΊΠΎΠ½ΠΎΠΌΡΡΠ½ΠΈΡ
Π²Π°ΠΆΠ΅Π»ΡΠ² ΠΎΡΠ³Π°Π½ΡΠ·ΡΠ²Π°ΡΠΈ Π½Π°ΡΠ΅Π»Π΅Π½Π½Ρ ΡΠ° ΡΡΠΈΠΌΡΠ»ΡΠ²Π°ΡΠΈ ΠΉΠΎΠ³ΠΎ Π΄Π±Π°ΡΠΈ ΠΏΡΠΎ ΠΆΠΈΡΠ»ΠΎ. ΠΡΠ»ΠΎ ΡΡΠΎΡΠΌΠΎΠ²Π°Π½ΠΎ ΠΆΠΈΡΠ»ΠΎΠ²Π΅ Π·Π°ΠΊΠΎΠ½ΠΎΠ΄Π°Π²ΡΡΠ²ΠΎ, Ρ ΠΌΠ΅ΠΆΠ°Ρ
ΡΠΊΠΎΠ³ΠΎ Π²ΡΡ ΠΏΡΠΎΡΠ΅ΡΠΈ, ΠΏΠΎΠ²βΡΠ·Π°Π½Ρ Π· ΠΆΠΈΡΠ»ΠΎΠΌ, Π·Π°Π»Π΅ΠΆΠ°Π»ΠΈ Π²ΡΠ΄ Π΄Π΅ΡΠΆΠ°Π²Π½ΠΈΡ
ΠΎΡΠ³Π°Π½ΡΠ² ΡΠΏΡΠ°Π²Π»ΡΠ½Π½Ρ Π² Π³Π°Π»ΡΠ·Ρ ΠΆΠΈΡΠ»ΠΎΠ²ΠΎΡ ΠΏΠΎΠ»ΡΡΠΈΠΊΠΈ, Π° Π·Π°Π³Π°Π»ΡΠ½ΠΎΠ΄Π΅ΡΠΆΠ°Π²Π½Π΅ ΠΏΠ»Π°Π½ΡΠ²Π°Π½Π½Ρ Π΄ΠΎΠ·Π²ΠΎΠ»ΠΈΠ»ΠΎ Π·Π²Π΅ΡΡΠΈ Π² Π₯Π°ΡΠΊΠΎΠ²Ρ ΠΌΡΡΡΠΎΠ±ΡΠ΄ΡΠ²Π½Ρ ΠΏΡΠ΄ΠΏΡΠΈΡΠΌΡΡΠ²Π°, ΡΠΎ ΠΌΠ°Π»ΠΈ ΡΠΎΠ·Π²ΠΈΠ½ΡΡΡ ΡΠ½ΡΡΠ°ΡΡΡΡΠΊΡΡΡΡ. Π£ΡΠ΅ Π·Π°Π·Π½Π°ΡΠ΅Π½Π΅ Π²ΠΈΡΠ΅ ΡΠΏΡΠΈΡΠ»ΠΎ ΠΏΡΠ΄Π½Π΅ΡΠ΅Π½Π½Ρ Π₯Π°ΡΠΊΠΎΠ²Π° Π½Π° Π½ΠΎΠ²ΠΈΠΉ ΡΠ½Π΄ΡΡΡΡΡΠ°Π»ΡΠ½ΠΈΠΉ ΡΡΠ²Π΅Π½Ρ
ΠΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΠ΅ ΡΡΡΡΠΎΠ³Π΅Π½ΠΎΠ² Π² ΡΠΊΠ°Π½ΡΡ ΠΌΠΎΠ»ΠΎΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠ½ΠΎΠΉ Ρ ΡΠΎΠΌΠ°ΡΠΎΠ³ΡΠ°ΡΠΈΠΈ ΠΈ ΡΠ°Π½Π΄Π΅ΠΌΠ½ΠΎΠΉ ΠΌΠ°ΡΡ-ΡΠΏΠ΅ΠΊΡΡΠΎΠΌΠ΅ΡΡΠΈΠΈ
Although estrogen contribution estrogen to breast cancer development is not fully understood, an effective method of their measurement, in the mammary gland might provide additional insight. In this study, we have developed a LC-MS/MS method of simultaneous quantification of estrone and estradiol in breast tissue samples. Analytes were extracted with methyl tert-butyl ether by sonication and derivatized with dansyl chloride. Estrogens were analyzed by liquid chromatography-tandem mass spectrometry with an electrospray ionization source. Accuracy and precision were better than 20% for most concentrations. Although estrone and estradiol levels in normal and malignant breast tissue samples analyzed using our method insignificantly differed. The method developed may be used in further studies aimed at evaluating a role estrogens in breast cancer risk.ΠΠΎΠ·Π΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ ΡΡΡΡΠΎΠ³Π΅Π½ΠΎΠ² ΡΡΠΈΡΠ°Π΅ΡΡΡ ΠΎΠ΄Π½ΠΈΠΌ ΠΈΠ· ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
ΡΠ°ΠΊΡΠΎΡΠΎΠ² ΡΠΈΡΠΊΠ° ΡΠ°Π·Π²ΠΈΡΠΈΡ ΡΠ°ΠΊΠ° ΠΌΠΎΠ»ΠΎΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ, ΠΎΠ΄Π½Π°ΠΊΠΎ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΡ Π΄Π΅ΠΉΡΡΠ²ΠΈΡ ΡΡΠΎΠ³ΠΎ ΡΠ°ΠΊΡΠΎΡΠ° Π΄ΠΎ ΠΊΠΎΠ½ΡΠ° Π½Π΅ ΠΈΠ·ΡΡΠ΅Π½Ρ. Π ΡΠ²ΡΠ·ΠΈ Ρ ΡΡΠΈΠΌ Π°ΠΊΡΡΠ°Π»ΡΠ½ΡΠΌ ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠΎΠ·Π΄Π°Π½ΠΈΠ΅ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ² ΠΎΡΠ΅Π½ΠΊΠΈ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ ΡΡΡΡΠΎΠ³Π΅Π½ΠΎΠ² Π² ΡΠΊΠ°Π½ΡΡ
ΠΌΠΎΠ»ΠΎΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ. Π Π΄Π°Π½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠΈ ΠΌΠ΅ΡΠΎΠ΄Π° ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎΠ³ΠΎ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΡΡΡΠΎΠ½Π° ΠΈ ΡΡΡΡΠ°Π΄ΠΈΠΎΠ»Π° Π² ΠΎΠ±ΡΠ°Π·ΡΠ°Ρ
ΡΠΊΠ°Π½ΠΈ ΠΌΠΎΠ»ΠΎΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ Ρ ΠΏΠΎΠΌΠΎΡΡΡ Π²ΡΡΠΎΠΊΠΎΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠΉ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠ½ΠΎΠΉ Ρ
ΡΠΎΠΌΠ°ΡΠΎΠ³ΡΠ°ΡΠΈΠΈ Ρ ΠΌΠ°ΡΡ-ΡΠΏΠ΅ΠΊΡΡΠΎΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π΄Π΅ΡΠ΅ΠΊΡΠΈΠ΅ΠΉ. ΠΠ½Π°Π»ΠΈΡΡ ΡΠΊΡΡΡΠ°Π³ΠΈΡΠΎΠ²Π°Π»ΠΈ ΠΌΠ΅ΡΠΈΠ»-ΡΡΠ΅Ρ-Π±ΡΡΠΈΠ»ΠΎΠ²ΡΠΌ ΡΡΠΈΡΠΎΠΌ Π² ΡΠ»ΡΡΡΠ°Π·Π²ΡΠΊΠΎΠ²ΠΎΠΉ Π±Π°Π½Π΅ ΠΈ Π΄Π΅ΡΠΈΠ²Π°ΡΠΈΠ·ΠΈΡΠΎΠ²Π°Π»ΠΈ Π΄Π°Π½ΡΠΈΠ»Ρ
Π»ΠΎΡΠΈΠ΄ΠΎΠΌ. ΠΡΠ»ΠΈ ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ Π²Π°ΡΠΈΠ°Π½ΡΡ Π½ΠΎΡΠΌΠΈΡΠΎΠ²ΠΊΠΈ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π΅Π½Π½ΡΡ
Π΄Π°Π½Π½ΡΡ
Π½Π° ΠΈΡΡ
ΠΎΠ΄Π½ΡΡ ΠΌΠ°ΡΡΡ ΡΠΊΠ°Π½ΠΈ ΠΈ Π½Π° ΠΌΠ°ΡΡΡ ΡΠΊΡΡΡΠ°Π³ΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
Π»ΠΈΠΏΠΈΠ΄ΠΎΠ². Π’ΠΎΡΠ½ΠΎΡΡΡ ΠΈ ΠΏΡΠ΅ΡΠΈΠ·ΠΈΠΎΠ½Π½ΠΎΡΡΡ ΠΊΠΎΠ½Π΅ΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠΎΠ΄Π° Π±ΡΠ»ΠΈ Π²ΡΡΠ΅ 20% Π΄Π»Ρ Π±ΠΎΠ»ΡΡΠΈΠ½ΡΡΠ²Π° ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΉ. Π‘ ΠΏΠΎΠΌΠΎΡΡΡ ΠΌΠ΅ΡΠΎΠ΄Π° Π±ΡΠ»ΠΈ ΠΏΡΠΎΠ°Π½Π°Π»ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Ρ ΡΡΠΎΠ²Π½ΠΈ ΡΡΡΡΠΎΠ½Π° ΠΈ ΡΡΡΡΠ°Π΄ΠΈΠΎΠ»Π° Π² ΠΎΠ±ΡΠ°Π·ΡΠ°Ρ
Π½ΠΎΡΠΌΠ°Π»ΡΠ½ΠΎΠΉ ΠΈ Π·Π»ΠΎΠΊΠ°ΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎΠΉ ΡΠΊΠ°Π½ΠΈ ΠΌΠΎΠ»ΠΎΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΡΠΉ ΠΌΠ΅ΡΠΎΠ΄ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ Π² Π΄Π°Π»ΡΠ½Π΅ΠΉΡΠΈΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡΡ
Π²Π»ΠΈΡΠ½ΠΈΡ ΡΡΡΡΠΎΠ³Π΅Π½Π° Π½Π° ΡΠΈΡΠΊ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΡΠ°ΠΊΠ° ΠΌΠΎΠ»ΠΎΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ
Harmonious Upbringing of Preschoolers: Physical and Neuropsychological Aspects
The article shows that the cultivation of spirituality in preschoolers is closely related to their physical and neuropsychological development, as well as moral and aesthetic education. The article aims to determine the effectiveness of the implemented programme for harmonious upbringing of children in cultural and educational space of preschools by comparing levels of physical and neurophysiological components. Given the neurophysiological indicators inherent in this age, the control group (CG) included 178 children and the experimental group (EG) 180 children. The pedagogical experiment followed certain diagnostic methods, such as control tests on physical fitness and rhythmoplasty. Importantly, age-related neuropedagogical factors made it possible to use the following organizational forms of work based on rhythmoplasty: traditional (morning exercises, physical education classes, entertainment activities) and alternative (fairy-tale therapy, finger gymnastics, dance and movement therapy, health aerobics classes). All forms of work were previously tested for compliance with neuropsychological and neurophysiological parameters for the specified age. The programme aimed to form childrenβs positive attitude towards themselves and their bodies, introduce various forms of physical activity, general physical culture, and, most importantly, cultivate βself-conceptβ that maximally corresponds to preschoolersβ neuropsychological status. The obtained data prove that indicators of EG children are higher than in those of CG children due to the implementation of the proposed programme. The novelty of the article is as follows: for the first time, the above-mentioned indicators of childrenβs harmonious upbringing in cultural and educational space of Ukrainian preschools have been comprehensively formed and measured. Finally, the article closely correlates with the leading trends in scientific-educational discourse.</p
The features of the collective modes in aerogels filled with superfluid helium
The velocity of fast and slow collective modes of 90, 94 and 98% porosity aerogels filled with superfluid helium were measured by means of low-frequency resonant technique at temperatures 0.5β2.5 K. The temperature dependences of velocities of both modes are compared with the hydrodynamic theory which was modified taking into account the mobility of the aerogel matrix, porosity of media and tortuosity of an acoustic way. It has been found that the fast and slow modes in an aerogel are coupled much stronger than the first and second sounds in bulk He II
The dynamics of vortex generation in superfluid 3He-B
A profound change occurs in the stability of quantized vortices in externally
applied flow of superfluid 3He-B at temperatures ~ 0.6 Tc, owing to the rapidly
decreasing damping in vortex motion with decreasing temperature. At low damping
an evolving vortex may become unstable and generate a new independent vortex
loop. This single-vortex instability is the generic precursor to turbulence. We
investigate the instability with non-invasive NMR measurements on a rotating
cylindrical sample in the intermediate temperature regime (0.3 - 0.6) Tc. From
comparisons with numerical calculations we interpret that the instability
occurs at the container wall, when the vortex end moves along the wall in
applied flow.Comment: revised & extended version. Journal of Low Temperature Physics,
accepted (2008
The State of the Art in Hydrodynamic Turbulence: Past Successes and Future Challenges
We present a personal view of the state of the art in turbulence research. We
summarize first the main achievements in the recent past, and then point ahead
to the main challenges that remain for experimental and theoretical efforts.Comment: 19 pages, 6 figures, submitted to Physica
Lipidomic profile of seminal plasma in non-obstructive azoospermia with sperm maturation arrest
Introduction. The difference between obstructive and non-obstructive azoospermia with sperm maturation arrest is important for the choice of treatment tactics and adequate counseling of a married couple.Purpose of the study. The study aimed to assess the semen lipid profile in patients with sperm maturation arrest. Materials and methods. Samples of seminal plasma for lipid composition of 24 men with normozoospermia and 64 men with azoospermia were studied. Patients with azoospermia underwent microdissection testicular biopsy followed by the detection of testicular tissue pathology. Lipid extracts were analyzed by liquid chromatography with mass spectrometry. Lipid data were compared with the results of pathomorphological studies.Results. Comparison of two groups revealed a statistically significant concentration differences for 22 lipids detected in positive-ion mode and 11 lipids detected in negative-ion mode. Those lipids mainly belong to the classes hexosylceramides, sphingomyelins and phosphatidylcholines β simple ethers and oxidized lipids. In multivariate analysis, the following lipids were found to be statistically significant predictors of sperm maturation arrest: PC 16: 0_22: 6 lipid (Ξ²-coefficient: -0.73; 95% confidence interval (95% CI): -1.42 to -0.27; odds ratio (OR): 0.48; OR CI: 0.24 to 0.76; Wald's test: -2.58; p = 0.01), SM d20: 1/22:2 lipid (Ξ²-coefficient 4.96; 95% CI 2.29 to 9.13; OR: 142.31; OR CI: 9.90 to 9.22^103; Wald's test: 2.93; p = 0.003); PG 20:3_22: 6 lipid (Ξ²-coefficient 2.52; 95% CI 1.13 to 4.49; OR: 12.37; OR CI: 3.10 to 89.27; Wald's test: 3.02; p = 0.002); PC O- 16: 1/16:0 lipid (Ξ²-coefficient 1.96; 95% CI -4.12 to 0.27; OR: 0.14; OR CI: 0.02 to 0.76; Wald's test: -2.05; p = 0.04). The prediction model characteristics of sperm maturation arrest, obtained during cross-validation in the positiveion mode composed: sensitivity 91%, specificity 85%; in negative-ion mode: sensitivity 75%; specificity 81%.Conclusions. Even though early stages of spermatogenesis are equally preserved in both fertile men and men with homogeneous sperm maturation arrest, the semen in the studied group of patients differed in its lipid profile. Patients with non-obstructive azoospermia, associated with meiosis arrest, may have unique lipidomic characteristics of seminal plasma, which in the future will make it possible to differentiate various variants of severe male infertility using non-invasive methods
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