Superconductivity in the Chalcogens up to Multimegabar Pressures

Highly sensitive magnetic susceptibility techniques were used to measure the superconducting transition temperatures in S up to 231($\pm$5) GPa. S transforms to a superconductor with T$_c$ of 10 K and has a discontinuity in T_c dependence at 160 GPa corresponding to bco to beta-Po phase transition. Above this pressure T_c in S has a maximum reaching about 17.3(+/-0.5) K at 200 GPa and then slowly decreases with pressure to 15 K at 230 GPa. This trend in the pressure dependence parallels the behavior of the heavier members Se and Te. Superconductivity in Se was also observed from 15 to 25 GPa with T_c changing from 4 to 6 K and above 150 GPa with T_c of 8 K. Similiarities in the T_c dependences for S, Se, and Te, and the implications for oxygen are discussed.Comment: 4 pages, 10 figure

Wire Production Development of Special Aluminum Alloys Based on Electromagnetic Mold Casting Method and Continuous Extrusion Process Known as Conform

Изложены перспективы использования специальных алюминиевых сплавов для производства бортовых проводов летательных аппаратов. Приведено описание плавильно-литейного комплекса с электромагнитным кристаллизатором для производства непрерывно- литых слитков малого сечения. Представлены преимущества электромагнитного литья, структуры и механические свойства слитков и проволоки из сплава 01417м. Предложена технологическая схема производства проволоки, включающая в себя литье непрерывной заготовки в электромагнитный кристаллизатор и ее последующую пластическую деформацию способом конформ. Приведены преимущества данной схемы и перспективы ее внедрения в промышленностиIt sets out the perspectives of special aluminum alloys use for the production of aircraft onboard wires. The description of the melt-casting complex based on electromagnetic mold method for casting of continuously cast ingots of small cross section area. Presented the advantages of electromagnetic casting method for structure and mechanical properties of ingots and wire of 01417m alloy. Wire technological production scheme is shown, which includes casting method of continuous blank in electromagnetic mold and next step of plastic deformation process known as conform. Discussed the advantages of this production scheme and perspectives of its implementation in industr

Wire Production Development of Special Aluminum Alloys Based on Electromagnetic Mold Casting Method and Continuous Extrusion Process Known as Conform

Изложены перспективы использования специальных алюминиевых сплавов для производства бортовых проводов летательных аппаратов. Приведено описание плавильно-литейного комплекса с электромагнитным кристаллизатором для производства непрерывно- литых слитков малого сечения. Представлены преимущества электромагнитного литья, структуры и механические свойства слитков и проволоки из сплава 01417м. Предложена технологическая схема производства проволоки, включающая в себя литье непрерывной заготовки в электромагнитный кристаллизатор и ее последующую пластическую деформацию способом конформ. Приведены преимущества данной схемы и перспективы ее внедрения в промышленностиIt sets out the perspectives of special aluminum alloys use for the production of aircraft onboard wires. The description of the melt-casting complex based on electromagnetic mold method for casting of continuously cast ingots of small cross section area. Presented the advantages of electromagnetic casting method for structure and mechanical properties of ingots and wire of 01417m alloy. Wire technological production scheme is shown, which includes casting method of continuous blank in electromagnetic mold and next step of plastic deformation process known as conform. Discussed the advantages of this production scheme and perspectives of its implementation in industr

The Use of Mesenchymal Stem Cells in the Complex Treatment of Kidney Tuberculosis (Experimental Study)

In recent years, the application of mesenchymal stem cells (MSCs) has been recognized as a promising method for treatment of different diseases associated with inflammation and sclerosis, which include nephrotuberculosis. The aim of our study is to investigate the effectiveness of MSCs in the complex therapy of experimental rabbit kidney tuberculosis and to evaluate the effect of cell therapy on the reparative processes. Methods: To simulate kidney tuberculosis, a suspension of the standard strain Mycobacterium tuberculosis H37Rv (106 CFU) was used, which was injected into the cortical layer of the lower pole parenchyma of the left kidney under ultrasound control in rabbits. Anti-tuberculosis therapy (aTBT) was started on the 18th day after infection. MSCs (5 × 107 cells) were transplanted intravenously after the start of aTBT. Results: 2.5 months after infection, all animals showed renal failure. Conducted aTBT significantly reduced the level of albumin, ceruloplasmin, elastase and the severity of disorders in the proteinase/inhibitor system and increased the productive nature of inflammation. A month after MSC transplantation, the level of inflammatory reaction activity proteins decreased, the area of specific and destructive inflammation in kidneys decreased and the formation of mature connective tissue was noted, which indicates the reparative reaction activation