Современные возможности лапароскопической пластики мочепузырно-прямокишечного свища

Современные возможности лапароскопической пластики мочепузырно-прямокишечного свищ

The Synthesis of Crystals of Chalcogenides of K, Zr, Hf, Hg, and Some Other Elements in Halide Melts under Conditions of Stationary Temperature Gradient

© 2019, Pleiades Publishing, Inc. Abstract: The growth of crystals of metals, alloys, chalcogenides, and pnictides in melts of alkali metal halides under conditions of stationary temperature gradient has been studied. The formation of crystals with participation of elements that were not considered in previous studies (mercury, zirconium, hafnium, germanium, sodium, potassium, rhenium, and osmium) is described. Mechanisms of element transport in salt melts are proposed. It is shown that most of crystals are obtained from ions in which necessary elements exist in most conventional oxidation states

The Synthesis of Crystals of Chalcogenides of K, Zr, Hf, Hg, and Some Other Elements in Halide Melts under Conditions of Stationary Temperature Gradient

© 2019, Pleiades Publishing, Inc. Abstract: The growth of crystals of metals, alloys, chalcogenides, and pnictides in melts of alkali metal halides under conditions of stationary temperature gradient has been studied. The formation of crystals with participation of elements that were not considered in previous studies (mercury, zirconium, hafnium, germanium, sodium, potassium, rhenium, and osmium) is described. Mechanisms of element transport in salt melts are proposed. It is shown that most of crystals are obtained from ions in which necessary elements exist in most conventional oxidation states

The Se<inf>2</inf> (Gas) Fugacity in Systems with Noble Metals: Chrisstanleyite Ag<inf>2</inf>Pd<inf>3</inf>Se<inf>4</inf> – Naumannite Ag<inf>2</inf>Se–β-PdSe<inf>2</inf> and Luberoite Pt<inf>5</inf>Se<inf>4</inf>–Sudovikovite PtSe<inf>2</inf>

© 2019, Pleiades Publishing, Ltd. Abstract: The reactions of 6Ag(cr) + 3PdSe2(cr) = 2Ag2Se(cr) + Ag2Pd3Se4(cr) and 12Ag(cr) + 5PtSe2(cr) = 6Ag2Se(cr) + Pt5Se4(cr) were studied with the EMF method in a completely solid-state galvanic cell with an Ag ion-conducting solid electrolyte with overall gas space (argon under atmospheric pressure). The EMF vs. temperature dependencies were obtained in the temperature ranges of Т = 425–648 K and 501–713 K, respectively. Then, they were recalculated for gaseous Se fugacity in dependence on the temperature for nonvariant equilibriums of Ag2Pd3Se4 (chrisstanleyite)–β-PdSe2 (the phase, which transforms into verbeekite under low temperatures)–Ag2Se (naumannite) and Pt5Se4 (luberoite)–PtSe2 (sudovikovite): logf Se2(gas) (Ag2Pd3Se4/Ag2Se/PdSe2) = 7.710 ± 0.050 – 8.524 ± 0.026(1000/T), logfSe2(gas) (Pt5Se4/PtSe2) = 7.135 ± 0.027 – 12.274 ± 0.016(1000/T)

The Se<inf>2</inf> (Gas) Fugacity in Systems with Noble Metals: Chrisstanleyite Ag<inf>2</inf>Pd<inf>3</inf>Se<inf>4</inf> – Naumannite Ag<inf>2</inf>Se–β-PdSe<inf>2</inf> and Luberoite Pt<inf>5</inf>Se<inf>4</inf>–Sudovikovite PtSe<inf>2</inf>

© 2019, Pleiades Publishing, Ltd. Abstract: The reactions of 6Ag(cr) + 3PdSe2(cr) = 2Ag2Se(cr) + Ag2Pd3Se4(cr) and 12Ag(cr) + 5PtSe2(cr) = 6Ag2Se(cr) + Pt5Se4(cr) were studied with the EMF method in a completely solid-state galvanic cell with an Ag ion-conducting solid electrolyte with overall gas space (argon under atmospheric pressure). The EMF vs. temperature dependencies were obtained in the temperature ranges of Т = 425–648 K and 501–713 K, respectively. Then, they were recalculated for gaseous Se fugacity in dependence on the temperature for nonvariant equilibriums of Ag2Pd3Se4 (chrisstanleyite)–β-PdSe2 (the phase, which transforms into verbeekite under low temperatures)–Ag2Se (naumannite) and Pt5Se4 (luberoite)–PtSe2 (sudovikovite): logf Se2(gas) (Ag2Pd3Se4/Ag2Se/PdSe2) = 7.710 ± 0.050 – 8.524 ± 0.026(1000/T), logfSe2(gas) (Pt5Se4/PtSe2) = 7.135 ± 0.027 – 12.274 ± 0.016(1000/T)

Modern possibilities of urorectal fistula laparoscopic fistuloplasty

The aim was to study the laparoscopic fistuloplasty possibility of the urorectal fistula (URF) that has occured after the rectal resectionin patient with colon cancer and to determine the ways to improve the results of the treatment for this complication. Patient N., 60 y. o., underwent the successful laparoscopic fistuloplasty of the URF that has occurred after surgical treatment for colon cancer and adjuvant polychemotherapy. The minimally invasive fistuloplasty is possible and has a good tolerability even in patients with oncopathology after extended pelvic surgical treatment and chemotherapy. Due to the operation specific this kind of surgery should be performed only in center with high laparoscopic and pelvic surgery experience