Study of the bufadienolides of the skin secretion of green toads (Bufo viridis Laur, 1758)

The composition of the skin secretion of Bufo viridis toads, which inhabit the Kharkov region, has been studied in this work

Designing of health-applied technology in physical education of students of the special medical group in the university

В данной статье представлен теоретический материал проектирования оздоровительно-прикладной технологии в физическом воспитании студенток специальной медицинской группы вуза. В настоящее время не учитываются особенности физического воспитания студенток педагогических вузов, имеющих отклонение в состоянии здоровья. Сформированные теоретические навыки и практические умения студенток педагогического вуза позволяют им проектировать полученные знания в учебный процесс школьников, имеющих отклонения в состоянии здоровья. Опыт, полученный будущими педагогами в вузе, позволяет корректно поддерживать и корректировать общее состояние здоровья детей с различными заболеваниями в школьной образовательной системе.This article presents the theoretical material for the design of recreational and applied technology in the physical education of female students of a special medical group of the university. Currently, the peculiarities of physical education of students of pedagogical universities with deviations in health status are not taken into account. Formed theoretical skills and practical skills of students of a pedagogical university allow them to project their knowledge into the educational process of students with deviations in their health status. The experience gained by future teachers in the university allows us to correctly maintain and adjust the general health of children with various diseases in the school educational system

Basis set effects on the structure of isomeric nitroanilines: the role of basis set expansion, additional diffuse and polarization functions within the frame of DFT and MP2 approaches

Influence of the basis set on the geometrical parameters and structural aromaticity indices of isomeric nitroanilines was studied in the framework of MP2 and DFT methods (M06-2X functional). Series of cc-pV(N)Z and def2-(N)ZVP basis sets of double-ζ, triple-ζ, and quadruple-ζ quality augmented with additional diffuse and/or polarization functions were investigated. It was found that using the basis sets of double-ζ quality can be the source of the significant error in MP2 calculations. Important role of additional diffuse functions and negligible influence of additional polarization functions was shown

Mass-spectrometric study of thermal desorption processes at vacuum heating of lithium iodide used to Lil(Eu) crystal growing

The thermal desorption at vacuum heating of fused Lil used to grow crystals has been studied using mass spectrometry. Water has been found to be released at 30-100 and 100-170°C due to decomposition of the residual hydrate as well as oxygen above 200°C. The oxygen release may be caused by decomposition of an impurity formed due to the hydrate dehydration

Decomposition of organic impurities in sodium iodide

The decomposition process of organic impurities present in the initial sodium iodide raw material has been studied using mass spectrometry. The decomposition has been found to result in formation of СО, СО₂, and various hydrocarbons. The decomposition of organic impurities is accompanied also by release of water that may be due both to direct decomposition of organic compounds and to oxidation thereof with oxygen present in the gas medium. Realization of the organic impurity oxidation at 400 to 450 ℃ provides the complete removal thereof from sodium iodide.Методом мас-спектрометрiї проведено дослiдження процесу розкладу органiчних примесей, що мiстяться у йодидi натрiю. Bстановлено, що в результатi їхнього термiчного розкладу формуються СО, СО₂, вуглець та вуглеводневi речовини рiзного складу CₙHₘ. Процес розкладу органiчних примесей супроводжується також видiленням молекул води, утворення яких може бути пов'язано як з їх безпосереднiм розкладом, так i з окислюванням присутнiм у газовому середовищi киснем. Проведення окислення органiчних сполук у температурному дiапазонi 400-450 ℃ дозволяє повнiстю вилучити їх з йодиду натрiю.Масс-спектрометрическим методом изучен процесс разложения органических примесей, присутствующих в исходном сырье йодида натрия. Установлено, что в результате их термического разложения образуется СО, СО₂, углерод и углеводороды различного состава CₙHₘ. Процесс разложения органических примесей сопровождается также выделением молекул воды, образование которых может быть связано как непосредственно с их разложением, так и их окислением в газовой среде кислородом. Проведение окисления органических примесей в диапазоне температур 400-450 ℃ позволяет полностью удалить их из йодида натрия

Adrenoleukodystrophy/Adrenomyeloneuropathy and Neurogenic Bladder Dysfunction. A Review

One of the conditions associated with adrenoleukodystrophy (ALD) / adrenomyeloneuropathy (AMN) is neurogenic lower urinary tract dysfunction (LUTD). A thorough examination of patients with ALD/AMN in most cases can reveal overactive bladder (OAB), which often remains undiagnosed because its clinical manifestations are underestimated against the background of numerous neurologic symptoms. In addition, in some cases, urologic symptomatology is the first sign of ALD/AMN that prompts the urologist to consider further evaluation of the patient. In this case, the urologist can play a significant role in the patient’s life, as timely diagnosis and treatment of ALD/AMN improve disease outcomes and reduce the likelihood of complications of ALD/AMN-associated conditions. To date, there are few studies devoted to the understanding of LUTD in ALD/AMN. In this article, we reviewed the current literature on OAB in patients with ALD/AMN

Molecular and crystal structures of 11-phenyl-4,9,10,11-tetrahydro-1,2,4-triazolo[5,1-b]naphtho[1,2-d]pyrimidine: The nature of disorder in the dihydronaphthalene fragment

The crystal structure of 11-phenyl-4,9,10,11-tetrahydro-1,2,4-triazolo[5,1-b]naphtho[1,2-d]pyrimidine has been studied by X-ray diffraction analysis at 293 and 153 K. The crystal data are as follows. At T = 293 K: monoclinic, a = 10.588(3), b = 18.196(6), and c = 7.939(2) Å; β = 98.55(1)°; sp. gr. P21/c; Z = 4; number of reflections = 1780; wR2 = 0.139; and R1 = 0.067 for 1130 reflections with F > 4σ(F). At T = 153 K: monoclinic, a = 10.414(9), b = 18.11(2), and c = 7.952(6) Å; β = 97.95(2)°; sp. gr. P21/c; Z = 4; number of reflections = 2384; wR2 = 0.161; and R1 = 0.078 for 1456 reflections with F > 4σ(F). It is demonstrated that annelation of the dihydropyrimidine cycle with a carbocycle at the C=C double bond brings about a substantial flattening of the boat conformation of the dihydroheterocycle. The dihydronaphthalene fragment is disordered between two equally probable conformations. The presence of the forbidden intermolecular contact C⋯C (2.83 Å) indicates that the disorder is statistic in nature, which is corroborated by the low-temperature (T = 153 K) investigation. In the crystal, the molecules are linked by hydrogen bonds that give rise to the centrosymmetric dimers that, in turn, form the ribbons. Each ribbon contains molecules in which the dihydronaphthalene fragments adopt only one of two conformations found

Molecular and crystal structures of 11-phenyl-4,9,10,11-tetrahydro-1,2,4-triazolo[5,1-b]naphtho[1,2-d]pyrimidine: The nature of disorder in the dihydronaphthalene fragment

The crystal structure of 11-phenyl-4,9,10,11-tetrahydro-1,2,4-triazolo[5,1-b]naphtho[1,2-d]pyrimidine has been studied by X-ray diffraction analysis at 293 and 153 K. The crystal data are as follows. At T = 293 K: monoclinic, a = 10.588(3), b = 18.196(6), and c = 7.939(2) Å; β = 98.55(1)°; sp. gr. P21/c; Z = 4; number of reflections = 1780; wR2 = 0.139; and R1 = 0.067 for 1130 reflections with F > 4σ(F). At T = 153 K: monoclinic, a = 10.414(9), b = 18.11(2), and c = 7.952(6) Å; β = 97.95(2)°; sp. gr. P21/c; Z = 4; number of reflections = 2384; wR2 = 0.161; and R1 = 0.078 for 1456 reflections with F > 4σ(F). It is demonstrated that annelation of the dihydropyrimidine cycle with a carbocycle at the C=C double bond brings about a substantial flattening of the boat conformation of the dihydroheterocycle. The dihydronaphthalene fragment is disordered between two equally probable conformations. The presence of the forbidden intermolecular contact C⋯C (2.83 Å) indicates that the disorder is statistic in nature, which is corroborated by the low-temperature (T = 153 K) investigation. In the crystal, the molecules are linked by hydrogen bonds that give rise to the centrosymmetric dimers that, in turn, form the ribbons. Each ribbon contains molecules in which the dihydronaphthalene fragments adopt only one of two conformations found