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We studied expression of genes of interleukins, interferon-gamma, tumor necrosis factor-alpha, and transforming growth factor-beta(2) in adhesions on uterine tubes. In tubal adhesions the intensity of production of mRNA for proinflammatory cytokines, antiinflammatory cytokine interleukin-10, and regulator of cell proliferation surpassed that in normal tissues by 2.5-7.4, 2.2, and 50.2 times, respectively. Correlations were found between production of mRNA for tumor necrosis factor-alpha and transforming growth factor-beta(2), interleukin-12, and interferon-gamma and interleukin-12 and transforming growth factor-beta(2). Our results suggest that expression of these genes during adhesion formation is regulated by the feedback mechanism.

Nucleophilic iodofluorination of perfluorovinyl methyl (I) and perfluorovinyl propyl (II) ethers by iodine chloride in nitrobenzene or sulfolan afforded 1-iodoperfluoro-1-methoxyethane (III) and 1-iodoperfluoro-l-propoxyethane in yields of 65 and 77%, respectively. In addition to compound (III), the reaction of perfluorovinyl methyl ether afforded two side products: l-iodo-2-chloroperfluoro-1-methoxyethane and 2-iodo-l-chloroperfluoro-1-methoxyethane. The latter products are formed via a radical reaction, which takes place under drastic conditions. On the basis of quantum chemical calculations of (I), (II), and the two anions formed from (I), CF3OCFCF3 (VI) and CF3OCF2CF2 (VII), it is proposed that nucleophilic iodofluorination of perfluoroalkyl vinyl ethers involves the formation of thermodynamically more stable anions. The higher reactivity of (I) compared with (II) is in accord with the energy of the lowest unoccupied molecular orbitals and the charge density on the CF2 carbon atoms.19F NMR spectra of the synthesized products are shown.

The well deparaffination unit using hot oil should ensure the heating of oil to sufficiently high temperatures (I00-150~ and develop the capacity required for rapid heating of the well to paraffin melting temperature in its maximum deposition zone (300-400 m down the hole). The unit should ensure an injection pressure adequate for processing wells of considerable depth (up to 3000 m) and be mounted on highly mobile transport media. It should function round the year under the oil field conditions~

The laws governing changes in breaking diagrams of texturized combined yarns as functions of technological parameters in their preparation have been studied.

The method of yarn texturizing with an air stream is universal: it permits one to obtain looped yarns both from natural fibers, and also from thermoplastic or nonthermoplastic man-made yarns. The main advantages of this method are the possibility of processing yarns over a broad range in linear density, a high texturizing speed, and maintenance of the physicomechanical properties of the original yarns.

The principles for change in certain acoustical characteristics of bulk-looped yarns as a function of the load straightening out the yarn have been demonstrated.

The abrasion of fabrics which include looped yarns, that have been texturized by the aerodynamic method, has been studied by scanning electron microscopy.

An increase in the viscose yarn sheathing in combined loop yarns leads to an improvement in the hygienic properties of fabrics made from them.

Perfluorotert-butyl iodide is formed in high yield upon pyrolysis of hexafluoropropylene with perfluoromethyl iodide. Perfluorotert-butyl iodide is also formed in low yield when perfluorotert-butyl bromide or chloroformate is treated with alkali metal iodides and also from bis(trifluoromethyl)diazirine and perfluoromethyl iodide.