Comparison of Two Information Sources for Cause-of-Death Follow-up in the Russian Federation: The Asbest Chrysotile Cohort Study.

Background: The Asbest chrysotile cohort was set up in Asbest town, Sverdlovsk oblast, Russian Federation, among the current and former workforce of the world's largest operating chrysotile mine and its processing mills, to investigate cancer risk in relation to occupational exposure to chrysotile.

Objectives: The cohort of 35,837 people was followed-up for mortality using cause-of-death information from official death certificates issued by the Civil Act Registration Office (ZAGS) of Sverdlovsk oblast from 1976 to 2015. Data were also retrieved from the electronic cause-of-death registry of the Medical Information Analytical Centre (MIAC) of Sverdlovsk oblast, which was launched in 1990 and operates independently of ZAGS.

[Contemporary reforms and optimization of medical examination committees in Russian Railways JSC].

The authors considered problems of restructurization and organization of medical examination committees in Russian Railways JSC, and their interlevel interactions. Detailed specification included documents circulation, order and terms of medical examination. Principles of conclusion on occupational fitness examination are specified.

[Occupational fitness examination of individuals directly connected with train operation].

The article covers psychophysiologic aspects of work conditions and work safety in train operator occupations of railway transport. The authors consider problems of medical examination, occupational fitness analysis in these individuals if in various diseases or functional disorders.

[Occupational morbidity of railway transport workers].

The authors present results of medical social monitoring of occupationalhazards that are the most prevalent in railway occupations workers, statistic data on occupational morbidity of railway transport workers over last 10 years. The article covers major causes of unfavorable effects resulting from occupational hazards in various workers categories. Dynamics of occupational morbidity parameters and its structure concerning separate nosologic entities are analyzed.

[2+2+1] cycloadditions of bis(dialkylamino)acetylenes with SiI2(Idip): syntheses and reactivity studies of unprecedented 2,3,4,5-tetraamino-1 H-siloles.

A novel method for the synthesis of 1H-siloles is presented. It involves a [2+2+1] cycloaddition of the ynediamines R2N-C≡C-NR2 (R = Me, Et) with SiI2(Idip) (Idip = 1,3-bis(2,6-diisopropylphenyl)imidazolin-2-ylidene) to afford the orange-colored, highly water-sensitive 1,1-diiodo-2,3,4,5-tetraamino-1H-siloles SiI2{C4(NR2)4} (1-I: R = Me; 2-I R = Et). Treatment of 2-I with an excess of SiBr4 afforded after I/Br exchange the 1,1-dibromo-1H-silole SiBr2{C4(NEt2)4} (2-Br).

Silicon-oxygen double bonds: a stable silanone with a trigonal-planar coordinated silicon center.

SiO in a complex: The first silanone that is stable at room temperature (3) is reported. The two-step synthesis involves carbonylation of the silylidyne complex 1 to give the chromiosilylene 2, followed by oxidation of 2 with N2 O. Silanone 3 features a polar, short SiO bond (1.

Chromium-silicon multiple bonds: the chemistry of terminal N-heterocyclic-carbene-stabilized halosilylidyne ligands.

An efficient method for the synthesis of the first N-heterocyclic carbene (NHC)-stabilized halosilylidyne complexes is reported that starts from SiBr(4). In the first step, SiBr(4) was treated with one equivalent of the N-heterocyclic carbene 1,3-bis[2,6-bis(isopropyl)phenyl]imidazolidin-2-ylidene (SIdipp) to give the 4,5-dihydroimidazolium salt [SiBr(3)(SIdipp)]Br (1-Br), which then was reduced with potassium graphite to afford the silicon(II) dibromide-NHC adduct SiBr(2)(SIdipp)(2-Br) in good yields. Heating 2-Br with Li[CpCr(CO)(3)] afforded the complex [Cp(CO)(2)Cr=SiBr(SIdipp)] (3-Br) upon elimination of CO.

Stable N-heterocyclic carbene adducts of arylchlorosilylenes and their germanium homologues.

The first N-heterocyclic carbene adducts of arylchlorosilylenes are reported and compared with the homologous germanium compounds. The arylsilicon(II) chlorides SiArCl(Im-Me(4)) [Ar=C(6)H(3)-2,6-Mes(2) (Mes=C(6)H(2)-2,4,6-Me(3)), C(6)H(3)-2,6-Trip(2) (Trip=C(6)H(2)-2,4,6-iPr(3))] were obtained selectively on dehydrochlorination of the arylchlorosilanes SiArHCl(2) with 1,3,4,5-tetramethylimidazol-2-ylidene (Im-Me(4)). The analogous arylgermanium(II) chlorides GeArCl(Im-Me(4)) were prepared by metathetical exchange of GeCl(2)(Im-Me(4)) with LiC(6)H(3)-2,6-Mes(2) or addition of Im-Me(4) to GeCl(C(6)H(3)-2,6-Trip(2)).

The heteronuclear bonding between heavier Group 14 elements and transition metals: a novel trioxystannate-iron complex with an unusual stannate fragment.

A new trioxystannate-transition metal complex, {[Li][(Me(2)NCH(2)CH(2)O)(3)Sn-Fe(CO)(4)]}(2) (3), exhibiting an unusual type of the heteronuclear bonding between heavier Group 14 elements and transition metals, has been synthesised and completely characterised by NMR, Raman and IR spectroscopy in solution as well as by Raman spectroscopy and X-ray diffraction analysis in the solid state.

[The clinico-epidemiological and medical expertise characteristics of neuropsychic morbidity in draftee contingents].

Official statistics show unfavourable growth tendencies of psychoneurological morbidity in younger generation in Russia, which creates recruitment problems for its Armed Forces. The authors offer a number of measures for preliminary checking-up of the drafted personnel to prevent potential patients from joining the Army.

[Theoretical aspects of rehabilitation and occupational health of pilots].

Some theoretical aspects of the rehabilitation problem and its interaction with the problem of professional health of pilot have been discussed in this paper. The authors have proposed methodologic approaches to the essence of medical and professional rehabilitation; classification of the main directions and types of rehabilitation, the principles of its application in flying practice as well as the question about economic advisability have been studied. As the main lines of medical rehabilitation there suggests the nosologic, psychologic and physiologic, professional (singly) rehabilitation with consideration of the labile and base components of professional health of pilot.

[Possibilities of psychotherapeutic and electrophysiological correction of psychosomatic disorders in pilots].

The authors necessitate elaboration and application of psychotherapeutic and electrophysiologic means and methods to improve functional state of pilots. Many experimental studies concerning the psychosomatic disorders, "complicated" psychic states in pilots, features of the etiology and the pathogenesis helped to define main directions of control and correction for necessary level of psychophysiologic resources and occupational performance in pilots.

[Clinical variants of pneumococcal pneumonia and the characteristics of its course and outcome].

The authors relate the results of examining 92 patients with acute pneumococcal pneumonia (APP). The bacteriological methods of studying the tracheal contents and pleural exudate, performed before treatment turned out highly informative. As regards the course of APP, the bacteremic , classic (infiltrative) and pleurisy-complicated varieties were distinguished.