Document BvDvQrN693LLZMvOoqwqzLbJm

-A4-J-- Industrial Hygiene Digest - 29 January, 1953 -' '>' " - / V' and after treatment. It improved in 62% of the miners on an average f 204 cc. The improvement of neurotic conditions present in the m^jjawriilty of silicotics is an essential part of treatment. Rehabilitation as; suarh is only possible in the early stages of the disease. It will be possible ta> cs&tei the rehabilitation of patients no longer suitable for work in th* raukiiies <snly when they have been retrained for other work. -- Cond. from Arch. Ind. Hyg^ '8i"2.<c.. MfsaiL i 77 Investigation of Silicotic . Lungs with the Electron Microscope- HfL. 3&ouiig.. StaubNo. 28/31-38 (Mar. 15, 1952) German, The lower limit of visibility, which is of the ordaar <nTQ,. x irsak.^'isur for the light microscope, can be extended to particles 20 Biinrita;- ivrarailltejr ibry the electron microscope. Electron diffraction patterns antdaSsoniicrall ')<z$4's, should be used to identify the components of dusts. Digesitdam of; iUirg ifc~ sue containing silicotic nodules with concentrated sulfuric aicirdi said] po-duu sium nitrate yielded platelets showing signs of chemical ajtftaidk.. @ir tite other hand, when the tissues were treated, with hydrogen p^oasiVils,. urn washing the tissue below 300 C and digestion with diliLncaitiii; particles were less attacked and gave the electron S^&aaaX^am.aatttsstsmi&& montmorillonite. Whether the montmorillonite was ilorrnBnfl ia. Uics limg' Bay- weathering of mica or whether it already occurred raa fibe aimImrne dtitni s<e~ mains to be studied. Identical lung residue shows agoasita;baytb*raaydii$5irarflan but montmorillonite under the electron microscope. TM* its s^ikaihxfdi toy the fact that these minerals occur in different size dtas'Bes,, HtolSki xmrtaiawdlai should be used. -- Caend. isrmrt\ .'uHL I0y$.. -- to# * ' 78 Silicatosis: Etiology, Pathogenesis, and Clinical lineatmima;.. M. A. Kovnatskii and others. Gigiena i Sanit. Nft* 2~5T- p'P52:)L Russian. A review is given of the disease caused by fatrttadles; oaf siil&satftes,, rather than those of the type producing silicosis prap^ea,, A. ssuofiy? Bibe disease caused by asbestos particles showed that tike dbffiicniicali biiffiikca^ical features are increased rate of respiration (co.mpen.iautj-yi) aaxf, m; astog* uihe level of blood saturation with oxygen is essentially mesrmoii,., elkaimg.es in the myocardium are evident on the electrocardiwj'ff.asni.. Tie-- fio oi2 tflae veins is reduced, and the permeability of capillary waiflUa sarfoVn ciisec-Jlime in a considerable number of cases. This affects tSto foai/dLahv/Tt gacisee^s^s as shown by the increase of oxidized glutathione amE. a. pSascz^Zis^ toaSsU glutathione. Ckerarj..