Making ladle products using North Onezhsk bauxites

Conclusions It was found that the North-Onezhsk bauxites are promising raw materials for the production of highly resistant ladle bricks.We developed and mastered a technology in the BKO conditions for making ladle brick using these bauxites containing up to 6% iron oxides.In the lining of the steel ladles made with the use of bauxite chamotte, the bricks wear out 30–40% less than with ordinary ladle brick produced by BKO and the Chasov Yarsk Combine.Translated from Ogneupory, No. 8, pp. 4–9, August, 1980.     

Effect of Radiation on Glasses in Borosilicate and Boron-Lead-Silicate Systems

The effect of an electron flux and gamma radiation on glasses produced in a synthetic glass batch is considered. The origin of the radiation color centers arising in glasses and the disintegration of these centers in thermal and photodecolorization is investigated.     

TÉS-3 compact atomic power station

Conclusions The construction and operation of the TÉS-3 plant have shown that the experiment of producing a large-unit mobile power station with a water-moderated water-cooled reactor was entirely successful. The prolonged operation of TÉS-3 confirmed the reliability, satisfactory controllability and convenient servicing of this type of power station.At the same time, the operation of TÉS-3 has shown that further improvements are possible, in particular, a greater degree of automation, an increase in the run duration to two or three years, a switch to natural coolant circulation in reactor cooling, etc.We should also mention the satisfactory agreement between the theoretical basic parameters of the power station and those actually obtained, which was largely due to the many experiments performed at the design stage.Translated from Atomnaya Énergiya, Vol. 17, No. 12, pp. 448–452, December, 1964.Report No. 310, presented by the USSR at the Third International Conference on the Peaceful Uses of Atomic Energy, Geneva, 1964.Deceased.     

Mitochondrial Dysfunction and Chronic Inflammation in Polycystic Ovary Syndrome

Polycystic ovarian syndrome (PCOS) is the most common endocrine–metabolic disorder affecting a vast population worldwide; it is linked with anovulation, mitochondrial dysfunctions and hormonal disbalance. Mutations in mtDNA have been identified in PCOS patients and likely play an important role in PCOS aetiology and pathogenesis; however, their causative role in PCOS development requires further investigation. As a low-grade chronic inflammation disease, PCOS patients have permanently elevated levels of inflammatory markers (TNF-α, CRP, IL-6, IL-8, IL-18). In this review, we summarise recent data regarding the role of mtDNA mutations and mitochondrial malfunctions in PCOS pathogenesis. Furthermore, we discuss recent papers dedicated to the identification of novel biomarkers for early PCOS diagnosis. Finally, traditional and new mitochondria-targeted treatments are discussed. This review intends to emphasise the key role of oxidative stress and chronic inflammation in PCOS pathogenesis; however, the exact molecular mechanism is mostly unknown and requires further investigation.     

Structure of thermoelectric films of higher manganese silicide on silicon according to electron microscopy data

The structural features of higher manganese-silicide films obtained by the diffusion doping of single-crystal silicon substrates with manganese vapor in a sealed cell and a flow-through quartz reactor with continuous pumping are comparatively analyzed. Scanning electron microscopy and high-resolution transmission electron microscopy show that a single-phase textured film of higher manganese silicide is formed in the evacuated cell. A change in the growth conditions from steady (cell) to quasi-steady-state (reactor) leads to the formation of polycrystalline islands of higher manganese silicide with nanoscale inclusions of the manganese- monosilicide phase.