122 research outputs found

    A study of the electric response of He II at the excitation of second sound waves

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    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

    Алгоритм ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ масс-спСктромСтричСских Π΄Π°Π½Π½Ρ‹Ρ… для получСния диагностичСской ΠΏΠ°Π½Π΅Π»ΠΈ молСкулярных соСдинСний Π½Π° ΠΏΡ€ΠΈΠΌΠ΅Ρ€Π΅ поиска ΠΌΠ°Ρ€ΠΊΠ΅Ρ€ΠΎΠ² мСтастазирования ΠΏΡ€ΠΈ Ρ€Π°ΠΊΠ΅ ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹

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    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 β€œcase/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 β€œomics”: metabolome, proteome, glycome.Диагностика ΠΏΠ°Ρ‚ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΏΠΎ молСкулярным ΠΌΠ°Ρ€ΠΊΠ΅Ρ€Π°ΠΌ являСтся пСрспСктивным Π½Π°ΠΏΡ€Π°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ клиничСской ΠΌΠ΅Π΄ΠΈΡ†ΠΈΠ½Ρ‹, Π² ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠΌ масс-спСктромСтрия (МБ) яслуТит ΠΎΠ΄Π½ΠΈΠΌ ΠΈΠ· ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ², ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅ΠΌΡ‹Ρ… для получСния ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΈ ΠΎ молСкулярных профилях. Π’ контСкстС извлСчСния соСдинСний, ΠΈΠ³Ρ€Π°ΡŽΡ‰ΠΈΡ… ΠΊΠ»ΡŽΡ‡Π΅Π²ΡƒΡŽ Ρ€ΠΎΠ»ΡŒ для классификации патология/болСзнь, Π²Π°ΠΆΠ½ΠΎΠ΅ Π·Π½Π°Ρ‡Π΅Π½ΠΈΠ΅ ΠΈΠΌΠ΅Π΅Ρ‚ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… Π΄Π°Π½Π½Ρ‹Ρ…, часто Π²ΠΊΠ»ΡŽΡ‡Π°ΡŽΡ‰ΠΈΡ… нСсколько сотСн Π΄Π΅Ρ‚Π΅ΠΊΡ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… соСдинСний. Π’ Π΄Π°Π½Π½ΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Π΅ ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½ Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ Π΄Π°Π½Π½Ρ‹Ρ… Π½Π° ΠΏΡ€ΠΈΠΌΠ΅Ρ€Π΅ Π΄Π°Π½Π½Ρ‹Ρ… МБ, ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… ΠΏΡ€ΠΈ Π°Π½Π°Π»ΠΈΠ·Π΅ ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²ΠΎΠΉ Ρ‚ΠΊΠ°Π½ΠΈ ΠΈ Π·Π΄ΠΎΡ€ΠΎΠ²ΠΎΠΉ ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹, с Ρ†Π΅Π»ΡŒΡŽ выдСлСния Π»ΠΈΠΏΠΈΠ΄Π½Ρ‹Ρ… ΠΌΠ°Ρ€ΠΊΠ΅Ρ€ΠΎΠ² мСтастазирования. Π’ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π΅ Π΅Π³ΠΎ Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½ Π½Π°Π±ΠΎΡ€ соСдинСний, относящихся ΠΊ классам Π»ΠΈΠΏΠΈΠ΄ΠΎΠ², связанных с процСссами мСтастазирования ΠΈ ΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€Π°Ρ†ΠΈΠΈ, ΠΈ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‰ΠΈΡ… ΠΏΠΎΡΡ‚Ρ€ΠΎΠΈΡ‚ΡŒ Π²Ρ‹ΡΠΎΠΊΠΎΡ‡ΡƒΠ²ΡΡ‚Π²ΠΈΡ‚Π΅Π»ΡŒΠ½ΡƒΡŽ Π΄ΠΈΠ°Π³Π½ΠΎΡΡ‚ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ модСль Π½Π° основС логистичСской рСгрСссии. ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Ρ‹ΠΉ ΠΌΠ΅Ρ‚ΠΎΠ΄ ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎ ΠΏΡ€ΠΈΠ³ΠΎΠ΄Π΅Π½ для ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ Π΄Π°Π½Π½Ρ‹Ρ… МБ, ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… ΠΏΡ€ΠΈ Π°Π½Π°Π»ΠΈΠ·Π΅ молСкулярного профиля Π±ΠΈΠΎΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Π° Π΄Ρ€ΡƒΠ³ΠΎΠ³ΠΎ базиса (ΠΌΠ΅Ρ‚Π°Π±ΠΎΠ»ΠΎΠΌ, ΠΏΡ€ΠΎΡ‚Π΅ΠΎΠΌ, Π³Π»ΠΈΠΊΠΎΠΌ)

    ΠŸΠΎΠ»Ρ–Ρ‚ΠΈΠΊΠ° Ρ€Π°Π΄ΡΠ½ΡΡŒΠΊΠΎΡ— Π²Π»Π°Π΄ΠΈ Π² ΠΆΠΈΡ‚Π»ΠΎΠ²ΠΎΠΌΡƒ ΠΏΠΈΡ‚Π°Π½Π½Ρ– Ρ‚Π° ΠΉΠΎΠ³ΠΎ Π²ΠΈΡ€Ρ–ΡˆΠ΅Π½Π½Ρ Π² Π₯Π°Ρ€ΠΊΠΎΠ²Ρ– (1920 – 1934 Ρ€Ρ€.)

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    Chagovets T.V. Policy of the Soviet power in the problem of housing and its solution in Kharkiv (1920–1934). – Manuscript. Thesis for a Candidate degree in History. Speciality 07.00.01 – History of Ukraine. – 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 people’s 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 (1920–1934). 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’ дисСртационной Ρ€Π°Π±ΠΎΡ‚Π΅ Π²ΠΏΠ΅Ρ€Π²Ρ‹Π΅ исслСдуСтся Тилищная ΠΏΠΎΠ»ΠΈΡ‚ΠΈΠΊΠ° совСтской власти Π² столичном Π₯Π°Ρ€ΡŒΠΊΠΎΠ²Π΅. ΠΠ½Π°Π»ΠΈΠ·ΠΈΡ€ΡƒΡŽΡ‚ΡΡ ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΡ‹ ΠΆΠΈΠ»ΠΈΡ‰Π½ΠΎΠ³ΠΎ кризиса Π² 20-30-Π΅ Π³ΠΎΠ΄Ρ‹ Π₯Π₯ Π²Π΅ΠΊΠ°. Π Π°ΡΡΠΌΠ°Ρ‚Ρ€ΠΈΠ²Π°ΡŽΡ‚ΡΡ ΡΠΎΡ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠΊΡƒΠ»ΡŒΡ‚ΡƒΡ€Π½Ρ‹Π΅ ΠΈ идСологичСскиС условия, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ способствовали Ρ„ΠΎΡ€ΠΌΠΈΡ€ΠΎΠ²Π°Π½ΠΈΡŽ ΠΆΠΈΠ»ΠΈΡ‰Π½ΠΎΠΉ ΠΏΠΎΠ»ΠΈΡ‚ΠΈΠΊΠΈ совСтской власти. Π”Π΅Ρ‚Π°Π»ΡŒΠ½ΠΎ изучаСтся структура ΠΈ ΡΡƒΠ±ΡŒΠ΅ΠΊΡ‚ государствСнного вСдСния ΠΈ распоряТСния ТильСм, Ρ„Π΅Π½ΠΎΠΌΠ΅Π½ Π½ΠΎΠ²ΠΎΠΉ ΠΆΠΈΠ»ΠΈΡ‰Π½ΠΎΠΉ ΠΏΠΎΠ»ΠΈΡ‚ΠΈΠΊΠΈ ΠΈ особСнности финансового ΠΈ ΠΎΡ€Π³Π°Π½ΠΈΠ·Π°Ρ†ΠΈΠΎΠ½Π½ΠΎ-управлСнчСского обСспСчСния Π² ΠΆΠΈΠ»ΠΈΡ‰Π½ΠΎΠΉ сфСрС. Π’ Π΄Π°Π½Π½ΠΎΠΌ исслСдовании Π΄Π΅Ρ‚Π°Π»ΡŒΠ½ΠΎ ΠΎΡ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ·ΠΎΠ²Π°Π½Ρ‹ Ρ„ΠΎΡ€ΠΌΡ‹ ΠΆΠΈΠ»ΠΈΡ‰Π½ΠΎΠ³ΠΎ вСдСния: государствСнная, коопСративная, частная. Автор ΠΏΡ€ΠΈΡ…ΠΎΠ΄ΠΈΡ‚ ΠΊ Π²Ρ‹Π²ΠΎΠ΄Ρƒ, Ρ‡Ρ‚ΠΎ совСтской власти ΡƒΠ΄Π°Π»ΠΎΡΡŒ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ политичСских ΠΈ экономичСских Ρ€Ρ‹Ρ‡Π°Π³ΠΎΠ² ΠΎΡ€Π³Π°Π½ΠΈΠ·ΠΎΠ²Π°Ρ‚ΡŒ насСлСниС ΠΈ ΡΡ‚ΠΈΠΌΡƒΠ»ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ Π΅Π³ΠΎ Π·Π°Π±ΠΎΡ‚Ρƒ ΠΎ ТильС. Π‘Ρ‹Π»ΠΎ сформировано ΠΆΠΈΠ»ΠΈΡ‰Π½ΠΎΠ΅ Π·Π°ΠΊΠΎΠ½ΠΎΠ΄Π°Ρ‚Π΅Π»ΡŒΡΡ‚Π²ΠΎ, Π² Ρ€Π°ΠΌΠΊΠ°Ρ… ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ³ΠΎ всС процСссы, ΠΊΠ°ΡΠ°ΡŽΡ‰ΠΈΠ΅ΡΡ Тилья ΠΎΡΡƒΡ‰Π΅ΡΡ‚Π²Π»ΡΠ»ΠΈΡΡŒ ΠΈ зависСли ΠΎΡ‚ государствСнных ΠΎΡ€Π³Π°Π½ΠΎΠ² управлСния ΠΈ распоряТСния ТильСм. Π€ΠΎΡ€ΠΌΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ Π΅Π΄ΠΈΠ½ΠΎΠ³ΠΎ управлСния Π² области ΠΆΠΈΠ»ΠΈΡ‰Π½ΠΎΠΉ ΠΏΠΎΠ»ΠΈΡ‚ΠΈΠΊΠΈ, общСгосударствСнноС ΠΏΠ»Π°Π½ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ»ΠΎ ΠΏΠΎΡΡ‚Ρ€ΠΎΠΈΡ‚ΡŒ Π² Π₯Π°Ρ€ΡŒΠΊΠΎΠ²Π΅ Π³Ρ€Π°Π΄ΠΎΠΎΠ±Ρ€Π°Π·ΡƒΡŽΡ‰ΠΈΠ΅ прСдприятия с Ρ€Π°Π·Π²ΠΈΡ‚ΠΎΠΉ ΠΆΠΈΠ»ΠΈΡ‰Π½ΠΎΠΉ инфраструктурой, Ρ‡Ρ‚ΠΎ Π²Ρ‹Π²Π΅Π»ΠΎ Π³ΠΎΡ€ΠΎΠ΄ Π½Π° Π½ΠΎΠ²Ρ‹ΠΉ ΠΈΠ½Π΄ΡƒΡΡ‚Ρ€ΠΈΠ°Π»ΡŒΠ½Ρ‹ΠΉ ΡƒΡ€ΠΎΠ²Π΅Π½ΡŒ.Π£ дисСртаційній Ρ€ΠΎΠ±ΠΎΡ‚Ρ– Π²ΠΏΠ΅Ρ€ΡˆΠ΅ Π΄ΠΎΡΠ»Ρ–Π΄ΠΆΡƒΡ”Ρ‚ΡŒΡΡ ΠΆΠΈΡ‚Π»ΠΎΠ²Π° ΠΏΠΎΠ»Ρ–Ρ‚ΠΈΠΊΠ° Ρ€Π°Π΄ΡΠ½ΡΡŒΠΊΠΎΡ— Π²Π»Π°Π΄ΠΈ Π² столичному Π₯Π°Ρ€ΠΊΠΎΠ²Ρ–. ΠΠ½Π°Π»Ρ–Π·ΡƒΡŽΡ‚ΡŒΡΡ ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠΈ ΠΆΠΈΡ‚Π»ΠΎΠ²ΠΎΡ— ΠΊΡ€ΠΈΠ·ΠΈ Π² 20 – 30-Ρ‚Ρ– Ρ€ΠΎΠΊΠΈ Π₯Π₯ ст. Π ΠΎΠ·Π³Π»ΡΠ΄Π°ΡŽΡ‚ΡŒΡΡ ΡΠΎΡ†Ρ–Π°Π»ΡŒΠ½ΠΎ-ΠΊΡƒΠ»ΡŒΡ‚ΡƒΡ€Π½Ρ– Ρ‚Π° Ρ–Π΄Π΅ΠΎΠ»ΠΎΠ³Ρ–Ρ‡Π½Ρ– ΠΏΠ΅Ρ€Π΅Π΄ΡƒΠΌΠΎΠ²ΠΈ, Ρ‰ΠΎ сприяли Ρ„ΠΎΡ€ΠΌΡƒΠ²Π°Π½Π½ΡŽ ΠΆΠΈΡ‚Π»ΠΎΠ²ΠΎΡ— ΠΏΠΎΠ»Ρ–Ρ‚ΠΈΠΊΠΈ Ρ€Π°Π΄ΡΠ½ΡΡŒΠΊΠΎΡ— Π²Π»Π°Π΄ΠΈ. Π”ΠΎΠΊΠ»Π°Π΄Π½ΠΎ Π²ΠΈΠ²Ρ‡Π°Ρ”Ρ‚ΡŒΡΡ структура Ρ‚Π° суб’єкт Π΄Π΅Ρ€ΠΆΠ°Π²Π½ΠΎΠ³ΠΎ вСдСння Ρ‚Π° користування ΠΆΠΈΡ‚Π»ΠΎΠΌ, Ρ„Π΅Π½ΠΎΠΌΠ΅Π½ Π½ΠΎΠ²ΠΎΡ— ΠΆΠΈΡ‚Π»ΠΎΠ²ΠΎΡ— ΠΏΠΎΠ»Ρ–Ρ‚ΠΈΠΊΠΈ ΠΉ особливості фінансового Ρ‚Π° ΠΎΡ€Π³Π°Π½Ρ–Π·Π°Ρ†Ρ–ΠΉΠ½ΠΎ-ΡƒΠΏΡ€Π°Π²Π»Ρ–Π½ΡΡŒΠΊΠΎΠ³ΠΎ забСзпСчСння ΠΆΠΈΡ‚Π»ΠΎΠ²ΠΎΡ— Π³Π°Π»ΡƒΠ·Ρ–. Π£ Ρ€ΠΎΠ±ΠΎΡ‚Ρ– комплСксно схарактСризовані Ρ„ΠΎΡ€ΠΌΠΈ ΠΆΠΈΡ‚Π»ΠΎΠ²ΠΎΠ³ΠΎ вСдСння – Π΄Π΅Ρ€ΠΆΠ°Π²Π½Π°, ΠΊΠΎΠΎΠΏΠ΅Ρ€Π°Ρ‚ΠΈΠ²Π½Π° Ρ‚Π° ΠΏΡ€ΠΈΠ²Π°Ρ‚Π½Π°. З’ясовано, Ρ‰ΠΎ Ρ€Π°Π΄ΡΠ½ΡΡŒΠΊΡ–ΠΉ Π²Π»Π°Π΄Ρ– вдалося Π·Π° допомогою ΠΏΠΎΠ»Ρ–Ρ‚ΠΈΡ‡Π½ΠΈΡ… Ρ‚Π° Π΅ΠΊΠΎΠ½ΠΎΠΌΡ–Ρ‡Π½ΠΈΡ… Π²Π°ΠΆΠ΅Π»Ρ–Π² ΠΎΡ€Π³Π°Π½Ρ–Π·ΡƒΠ²Π°Ρ‚ΠΈ насСлСння Ρ‚Π° ΡΡ‚ΠΈΠΌΡƒΠ»ΡŽΠ²Π°Ρ‚ΠΈ ΠΉΠΎΠ³ΠΎ Π΄Π±Π°Ρ‚ΠΈ ΠΏΡ€ΠΎ ΠΆΠΈΡ‚Π»ΠΎ. Π‘ΡƒΠ»ΠΎ сформовано ΠΆΠΈΡ‚Π»ΠΎΠ²Π΅ законодавство, Ρƒ ΠΌΠ΅ΠΆΠ°Ρ… якого всі процСси, пов’язані Π· ΠΆΠΈΡ‚Π»ΠΎΠΌ, Π·Π°Π»Π΅ΠΆΠ°Π»ΠΈ Π²Ρ–Π΄ Π΄Π΅Ρ€ΠΆΠ°Π²Π½ΠΈΡ… ΠΎΡ€Π³Π°Π½Ρ–Π² управління Π² Π³Π°Π»ΡƒΠ·Ρ– ΠΆΠΈΡ‚Π»ΠΎΠ²ΠΎΡ— ΠΏΠΎΠ»Ρ–Ρ‚ΠΈΠΊΠΈ, Π° Π·Π°Π³Π°Π»ΡŒΠ½ΠΎΠ΄Π΅Ρ€ΠΆΠ°Π²Π½Π΅ планування Π΄ΠΎΠ·Π²ΠΎΠ»ΠΈΠ»ΠΎ звСсти Π² Π₯Π°Ρ€ΠΊΠΎΠ²Ρ– містобудівні підприємства, Ρ‰ΠΎ ΠΌΠ°Π»ΠΈ Ρ€ΠΎΠ·Π²ΠΈΠ½ΡƒΡ‚Ρƒ інфраструктуру. УсС Π·Π°Π·Π½Π°Ρ‡Π΅Π½Π΅ Π²ΠΈΡ‰Π΅ сприяло ΠΏΡ–Π΄Π½Π΅ΡΠ΅Π½Π½ΡŽ Π₯Π°Ρ€ΠΊΠΎΠ²Π° Π½Π° Π½ΠΎΠ²ΠΈΠΉ Ρ–Π½Π΄ΡƒΡΡ‚Ρ€Ρ–Π°Π»ΡŒΠ½ΠΈΠΉ Ρ€Ρ–Π²Π΅Π½ΡŒ

    Π˜Π·ΠΌΠ΅Ρ€Π΅Π½ΠΈΠ΅ эстрогСнов Π² тканях ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ Тидкостной Ρ…Ρ€ΠΎΠΌΠ°Ρ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ ΠΈ Ρ‚Π°Π½Π΄Π΅ΠΌΠ½ΠΎΠΉ масс-спСктромСтрии

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    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.ВоздСйствиС эстрогСнов считаСтся ΠΎΠ΄Π½ΠΈΠΌ ΠΈΠ· основных Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠ² риска развития Ρ€Π°ΠΊΠ° ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹, ΠΎΠ΄Π½Π°ΠΊΠΎ ΠΌΠ΅Ρ…Π°Π½ΠΈΠ·ΠΌΡ‹ дСйствия этого Ρ„Π°ΠΊΡ‚ΠΎΡ€Π° Π΄ΠΎ ΠΊΠΎΠ½Ρ†Π° Π½Π΅ ΠΈΠ·ΡƒΡ‡Π΅Π½Ρ‹. Π’ связи с этим Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½Ρ‹ΠΌ являСтся созданиС ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² ΠΎΡ†Π΅Π½ΠΊΠΈ содСрТания эстрогСнов Π² тканях ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹. Π’ Π΄Π°Π½Π½ΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Π΅ прСдставлСны Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Π° количСствСнного опрСдСлСния эстрона ΠΈ эстрадиола Π² ΠΎΠ±Ρ€Π°Π·Ρ†Π°Ρ… Ρ‚ΠΊΠ°Π½ΠΈ ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ высокоэффСктивной Тидкостной Ρ…Ρ€ΠΎΠΌΠ°Ρ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ с масс-спСктромСтричСской Π΄Π΅Ρ‚Π΅ΠΊΡ†ΠΈΠ΅ΠΉ. Аналиты экстрагировали ΠΌΠ΅Ρ‚ΠΈΠ»-Ρ‚Ρ€Π΅Ρ‚-Π±ΡƒΡ‚ΠΈΠ»ΠΎΠ²Ρ‹ΠΌ эфиром Π² ΡƒΠ»ΡŒΡ‚Ρ€Π°Π·Π²ΡƒΠΊΠΎΠ²ΠΎΠΉ Π±Π°Π½Π΅ ΠΈ Π΄Π΅Ρ€ΠΈΠ²Π°Ρ‚ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π»ΠΈ дансилхлоридом. Π‘Ρ‹Π»ΠΈ рассмотрСны Π²Π°Ρ€ΠΈΠ°Π½Ρ‚Ρ‹ Π½ΠΎΡ€ΠΌΠΈΡ€ΠΎΠ²ΠΊΠΈ количСствСнных Π΄Π°Π½Π½Ρ‹Ρ… Π½Π° ΠΈΡΡ…ΠΎΠ΄Π½ΡƒΡŽ массу Ρ‚ΠΊΠ°Π½ΠΈ ΠΈ Π½Π° массу экстрагированных Π»ΠΈΠΏΠΈΠ΄ΠΎΠ². Π’ΠΎΡ‡Π½ΠΎΡΡ‚ΡŒ ΠΈ ΠΏΡ€Π΅Ρ†ΠΈΠ·ΠΈΠΎΠ½Π½ΠΎΡΡ‚ΡŒ ΠΊΠΎΠ½Π΅Ρ‡Π½ΠΎΠ³ΠΎ ΠΌΠ΅Ρ‚ΠΎΠ΄Π° Π±Ρ‹Π»ΠΈ Π²Ρ‹ΡˆΠ΅ 20% для Π±ΠΎΠ»ΡŒΡˆΠΈΠ½ΡΡ‚Π²Π° ΠΊΠΎΠ½Ρ†Π΅Π½Ρ‚Ρ€Π°Ρ†ΠΈΠΉ. Π‘ ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ ΠΌΠ΅Ρ‚ΠΎΠ΄Π° Π±Ρ‹Π»ΠΈ ΠΏΡ€ΠΎΠ°Π½Π°Π»ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Ρ‹ ΡƒΡ€ΠΎΠ²Π½ΠΈ эстрона ΠΈ эстрадиола Π² ΠΎΠ±Ρ€Π°Π·Ρ†Π°Ρ… Π½ΠΎΡ€ΠΌΠ°Π»ΡŒΠ½ΠΎΠΉ ΠΈ злокачСствСнной Ρ‚ΠΊΠ°Π½ΠΈ ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹. Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Π½Ρ‹ΠΉ ΠΌΠ΅Ρ‚ΠΎΠ΄ ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ использован Π² Π΄Π°Π»ΡŒΠ½Π΅ΠΉΡˆΠΈΡ… исслСдованиях влияния эстрогСна Π½Π° риск развития Ρ€Π°ΠΊΠ° ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹

    Harmonious Upbringing of Preschoolers: Physical and Neuropsychological Aspects

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    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 children’s positive attitude towards themselves and their bodies, introduce various forms of physical activity, general physical culture, and, most importantly, cultivate β€œself-concept” that maximally corresponds to preschoolers’ 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 children’s 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

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    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 0.5–2.5 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

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    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

    Lipidomic profile of seminal plasma in non-obstructive azoospermia with sperm maturation arrest

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    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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