Tricaesium dimolybdate(VI) bromide

The title compound, Cs3(Mo2O7)Br, was synthesized by the reaction of CsNO3, MoO3 and 1-ethyl-3-methyl­imidazolium bromide. Its crystal structure is isotypic with K3(Mo2O7)Br and contains (MoO4)2− tetra­hedra which share an O atom to produce a [Mo2O7]2− dimolybdate(VI) anion with a linear bridging angle and m2 symmetry. The anions are linked by Cs atoms (site symmetry m2), forming sheets parallel to (001). Br atoms (site symmetry m2) are also part of this layer. Another type of Cs atom (3m site symmetry) is located in the inter­layer space and connects the layers via Cs—O and Cs—Br inter­actions into a three-dimensional array

Пьеса Т. Мидлтона и У. Роули «Оборотень» как «трагедия порока»

The article is devoted to the consideration of the motif of “lapse from virtue” based on the example of the heroine of the Renaissance revenge tragedy “The Changeling” (1622) by Thomas Middleton and William Rowley. The article identifies the key scenes of the tragedy, helping to understand the multidimensionality and allusiveness of the heroine. In the context of the relationship of the heroine to other characters in the tragedy, the authors determine and analyse the character metamorphosis and stages of the moral decay of Beatrice-Joanna. Examples of the subversion of the audience’s expectation are given. The authors examine scenes of the tragedy, which help to reveal the motifs of the double and shapeshifting, related to the image of the main character. The system of characters in the play by Middleton and Rowley is considered in the context of the most significant dramatic works of the Elizabethan and Jacobean eras.El artículo está dedicado a la consideración del motivo de la caída con el ejemplo de la imagen de la heroína principal de la sangrienta tragedia renacentista de la venganza de T. Middleton y W. Rowley (Thomas Middleton, 1580-1627, y William Rowley, 1585-1626) "El hombre lobo" (1622). El artículo identifica escenas clave del drama que ayudan a comprender la no unidimensionalidad y la alusividad de la imagen del personaje principal. En el contexto de la relación de la heroína con otros personajes del drama, los autores revelan y analizan las metamorfosis del personaje y las etapas de degradación moral de Beatrice-Joanna. Se dan los ejemplos del uso de la recepción del engaño de las expectativas del público. Los autores consideran escenas del texto del drama que ayudan a descubrir los motivos de la dualidad y a trabajar en la imagen del personaje principal. El sistema de personajes de la obra de T. Middleton y W. Rowley se considera en el contexto de las obras dramáticas más llamativas de las épocas Isabelina y Yakoviana.Статья посвящена рассмотрению мотива грехопадения на примере образа главной героини ренессансной кровавой трагедии мести Т. Мидлтона и У. Роули (Thomas Middleton, 1580-1627, and William Rowley, 1585-1626) «Оборотень» («The Changeling», 1622). В статье выявлены ключевые сцены драмы, помогающие понять неодномерность и аллюзивность образа главной героини. В контексте взаимоотношений героини с другими персонажами драмы авторы выявляют и анализируют метаморфозы характера и этапы нравственного разложения Беатрисы-Джоанны. Приведены примеры использования приема обмана зрительских ожиданий. Авторы рассматривают сцены из текста драмы, помогающие раскрыть мотивы двойничества и оборотничества, связанные с образом главной героини. Система персонажей пьесы Т. Мидлтона и У. Роули рассмотрена в контексте наиболее ярких драматических произведений Елизаветинской и Яковианской эпох

Improving the performance properties of gears for mining equipment

Deformation hardening ‐ important technological factor of management of carburized layer substructure. The formation of a favorable substructure ‐ substructure with high resistance to local microplastic deformation ‐ occurs in conditions of development of competitive processes. On a degree of their development is renders the influence of initial structural condition of a carburized layer, which, except chemical composition, is defined by technology of thermochemical treatment. To number of the factors, dependent from technology of thermochemical treatment, concern: carbon saturation in the carburized layer, the martensite morphology and carbon concentration in it, volumetric share of a redundant carbide phase and its distribution in a carburized layer

Integrated hardening of the heavily loaded gear surfaces

В работе проведено исследование режимов деформационного упрочнения поверхностей зубчатых колес из высокопрочных сталей с целью повышения их работоспособности и надежности. Исследованы закономерности изменения характеристик качества цементованного слоя, тонкой структуры его фаз и их взаимосвязь с контактной выносливостью.The deformation hardening, widely use for the increase of operability of carburized gear wheels. The plastic deformation strengthens the weak sites of the structure and complicates the microplastic deformation development in them. The efficiency of deformation hardening depends on initial structural condition of carburized layer

Studies of contribution of metals bonded with organic matter of seawater to the fluxes of total dissolved metals across water-sediment interface at Vistula Lagoon of Baltic Sea

© 2004 IEEE. Investigations of fluxes of a dissolved element across the water-sediment interface in Vistula Lagoon (Baltic Sea) were carried out in August 2001 and 2002, using chamber experiments. Oxygen, iron(II), total dissolved iron, manganese, copper and lead fluxes were calculated. For the first time the fluxes of metals bonded with organic matter of sea water were studied. The contribution of metals bonded with organic matter to the total flux was varied depending upon conditions and may reach up to 70 %. It was found that metal fluxes at the coastal zone are larger than at the center of the lagoon by the factor of 2-4

Norleucine, a natural occurrence in a novel ergot alkaloid γ-ergokryptinine

A novel natural peptide ergot alkaloid γ-ergokryptinine containing norleucine has been isolated from ergot sclerotia of the field-growing parasitic fungus Claviceps purpurea CCM 8059. Its structure was deduced from the NMR and mass spectral data. The final structural proof was provided by the crystal structure determination, which is the first X-ray structure of a natural Nle-containing secondary metabolite. The conformations of three ergopeptinines: γ-ergokryptinine, ergoladinine, and α-ergokryptinine were compared. © Springer-Verlag 2005

Studies of fluxes of dissolved iron and manganese in the Gulf of Finland

© 2004 IEEE. Metal fluxes (total dissolved iron and manganese) across the water-sediment interface were studied in situ in the Gulf of Finland in June 2002 and 2003 using an autonomous benthic lander. Distribution of these metals in the sediment and the porewater was also investigated. Focus was given to understand the behavior of the studied metals at various redox conditions and the influence when sediment resuspension is occurring. Our data indicate the importance of the redox conditions for the iron fluxes with no fluxes at oxic, intermediate at anoxic and high fluxes at suboxic conditions. The fluxes of manganese do not seem to have any correlation with the oxygen levels. Both metals were significantly affected by resuspension, which led to a rapid release