Document Gmmeg2YZwgBJBBGoyLYn5nm0Y

FILE NAME: Chemical Abstracts (CHAB) DATE: 1942 DOC#: CHAB024 DOCUMENT DESCRIPTION: Abstract Originally Published in 1940 by Mottura 1942 3581 13--Miscellaneous Industrial Products 3582 marrow injury. The porphyrinuria is most intense in the 1 .n. *he fjssue acidosis; in acid lung tissue the dissolved presence of a bone marrow inhibition with the simultane silicic acid exerts a nonspecific acid irritation in addn. to ous appearance of a myelocytic shift in the bone marrow. its special irritant action, while in the alk. tissue the silicic This observation tenders it not improbable that the por acid, which gradually dissolves, is neutralized and ex phyrinuria is to be connected with the primary disturbance creted as a salt thrcjgh the kidneys. A concept of tissue in the bone marrow. The cardiovascular and central ner acjdosis is outlined and a suitable method for detg. the vous injuries are interpreted as signs of porphyrin poison acid-base ratio in the tissues is established. On the basis ing. Ruth Berggren of this method, numerous examples are given which show Miners' nystagmus. D. L. Davies. 573; Zenlr. Gewerbehyg. Unfallverht. Lancet 1940, I, 27, 238(1940).-- 2 that the acidity severe silicosis, quotient is increased in stone cutters while low or neg. acidity quotients with pre Miners' nystagmus is not considered lo b q a psychoneuro dominate in those with mild symptoms of silicosis, in spite sis. The illumination theory is also disputed. It is be of working with stone for years. The relation of the tissue lieved to be a form of chronic poisoning, caused either by acidosis to the pyknic habitus and mode of nutrition is bacteria or gases. Ruth Berggren illustrated with addnl. examples. The diet of those ex Physical diagnosis of radium poisoning. I. Kranke. posed to stone dust should be predominantly alk. and Fundamenta Radiol. 5, 113(1939); Zcntr. Geuierbehyg. markedly severe phys. work should be avoided because of Unfallverht. 27, 124(1940).--The occurrence and course the increase in lactic acid. In severe pneumoconiosis with of Ra poisoning and the size of the toxic dose arc consid 3 diminution of the alveolar surface and subsequent cardiac ered. The necessary conditions for a method of diagnosis insufficiency, however, the combustion is lowered in conse of Ra poisoning or for the supervision of those exposed to quence of O deficiency and a lasting tissue acidos's results. Ra have been studied. Detn. of the intensity and distri , Ruth Berggren bution of the Ra deposits by the 7-radiation emitted by Industrial application of a method for determining the the radioactive substances constitutes the most exact and thoron content of air. R. D. Evans, S. J. Nilson, C. certain method. A method is described which permits Goodman and N. R. Bernz. Ber. 8. intern. Kongr. Un the dein, of Ra deposits in amts, of 0.2 u g. Ra-elemcnt or fallmed. u. Berufskrankh. 2, 1006(1939); Zenlr. Gewer mdioagrenoinsisa ofefwRma idne.posAitnioanppis. dfoesrccraibrreydinagndoutht ethaeppplriaccattiicoanl 4 b4e9h7y7g6., 5U1n0f2asl.l--veArhinite.w27in,st1r2u4m(1e9n4t 0is);decsfc.riCbe. dAf.or3t4h,e4d3e3t4n7., is explained. Ruth Berggren of the Tn content of the air. Practical expts. in various Rntgen studv of the fine structure as a method of medi factories with analytical evaluation in the lab. showed a.- cal investigr ioi.. Grtner. Reichsarbeitsblatt [N. F.], T11content of the air in individual locations in plants which 20, III, 193(1940); Zenlr. Gewerbehyg. Unfallverht. 27, was 100-1000 times higher than that which is ordinarily 229(1940); cf. C. .1. 33, 7428.--Quartz, fluorite, calcite, considered harmless. In such cases adequate ventilation kaolin, clay, siliimanite, Carborundum, corundum and should be provided. Ruth Berggren sericitc, grindings of Main, Palatinate, Taunus and Eifel Plastic molding. Leo Gusman and Murray H. Reich. sandstone, dusts of MnOj, Thomas slag, limestone and 5 City Coll. Vector (N. Y.) 5, 40-1, 52(1942).--Descriptive. tobacco and grindings from the .Solinger works were studied The high first cost of molds and dies in both the compres with a Mikro-Metalix-Rntgen fine-structure app. (Kirina sion and the injection processes is one of the largest items C. H. F. Mller). Tobacco dust from a tobacco factory of expense in plastic molding. The use of plastic mate was found to contain 20% insol. silicic acid. Dust from rials, as polystyrene, and synthetic rubbers, as the molds, the lungs of miners, grinders and porcelain workers was opens new possibilities and new economies in the field of also studied and compared in some cases with the indus plastic molding. Leopold Scheflan trial dust. A satisfactory diagnosis could almost always Synthetic-resin molding materials. K. Matuscheek. be obtained; it could, in part, be confirmed by client, Fordertechnik 32, 261, 385(1939); Zentr. Gewerbehyg. analyses. In some instances, only kaolin or siliimanite, 6 Unfallverhiit. 27, 235(1940).--A detailed article on the without the participation of the free silicic acid, could be compn., manuf. and working up of molding materials and suspected as the cause of the silicosis. A quant, diagnosis their many forms of use. Ruth Berggren is theoretically possible but meets with practical difficulties. The thermal and electrical properties of bitumastic Ruth Berggren compounds containing quartz sand. Willis Jackson. Pathological anatomy and pathogenesis of asbestosis. Phil. Mag. 33, 81-9(1942).--An increase in the thermal i Giacomo Moltura and Emanuele Fagiano. Russ. med. eotid. without appreciable detriment to the elec, proper I md. 11, 233-84(1940); Zentr. Gewerbehyg. Unfallverht. ties is obtained by incorporating sand into compns. of the ji'j 2sc7r,ib2e2d9-i3n0d(1e9ta4i0l;).--onTewooccfuartraeldcaafsteesr o3f0aysbeaesrstoosifsuanrienldecr-- 7 bexitputms.amstiacdetyopne 3usteydpeass oinfsbuiltautmoras.sticDcaotma panre. reTphoerteadddfno.r I rupted work in an asbestos plant, the other after 7 years of 80% sand by wt. reduces the thermal resistance to less j of work followed by an interval of 30 years. This 2nd than one sixth of its normal value for any particular bitu ' case would indicate that a relatively early change of work mastic. The effect of the sand grain size on the thermal is of little value. Since asbestos particles were still present resistivity is small. The dropping and pouring temps, be after many years and since no connection could be found gin to rise rapidly when the sand content reaches 70%. between the no. of asbestos particles and the degree of Quartz sand decreases the dielec, strength, but not by an fibrosis, the theory of the development of fibrosis by sola, objectionable amt. The power factor is increased, owing of the asbestos particles, followed by client, reaction, is 8 probably to moisture adsorption. S. Tolansky considered incorrect. The lymph corpuscles do not indi Properties of heat-insulating materials. E. A. Allcut cate any essentially sclerotic changes. The difference be and D. H. Hamly. Eng. J. 24, 514-24(1941).--A dis tween these and silicotic changes is clearly shown. A re cussion of the character of heat-insulating materials, the lation between tuberculosis and asbestosis is not consid- difficulties in detg. their relative value experimentally, _ ered probable but a connection with the development of the effect of air spaces and surface resistance and the pos j i lung cancer is believed possible. Ruth Berggren sibility of saving fuel by taking advantage of solar radia '* Recent questions in industrial hygiene. III. Dust. tion and heal stored in the structure of the building itself. O. Ehrismann. Ueul. med. Wochsehr. 1939, II, 1281; Zentr. Gewerbehyg. Unfotherht. 27, 181(1910); ef. C. A. 9 J. M. Noy Production of dermatine on calenders. P. M. Bognty- j 36, 3287`''.--Previous results of the study of silicosis, as rev and G. G. Petrzhik. Nauch.-Issledovatel. Raboty I bestosis, Thomas-slag pneumonia, and Mil and other dust Lab. Glavtekhtkani 1939, 105 12; Khim. Referat. Zhur. injuries are given. Ruth Berggren 1940, No. 4, 121.--Dermatine was prepd. on differential Use of the acidity quotient of the urine in the selection 3- and 4-roller calenders, with moleskin, duck, canvas of stone cutters and those endangered by stone dust. A. and cambric as foundation. Best results were obtained by Wiesinger. Vertrauensarzt, u. Krk. hasse 7, 229(1939); using 100 parts of colloxylin, 80 parts of dibutyl phthal- Zentr. Gewerbehyg. Unfallverht. 27, 181(1940).--The de- ate, 40 parts of castor oil, 100 parts of ale. and 125 parts