Increased incidence of respiratory tract cancers in people ... · Purpose Portland cement contains carcinogens such as chromium and free silica, and hence, inhalation of cement dust can cause respiratory tract cancers. The purpose of this study was to determine whether living near a cement plant increases the risk of respiratory tract cancers. Methods The study population consisted of 341,793 people, all of whom lived in administrative districts within 3 .
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Techniques for improving formulations of bioinoculants · Introduction. Bioinoculants are the beneficial soil amendments that use microbes for promoting plant growth and development. They contain dormant or live cells of the efficient strain of nitrogenfixing, Hydrogen cyanide and siderophore producing microorganisms (Puri and Padda 2017; Lalitha 2017).The interactions between soilborne microbes and the roots of higher plants play a .
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ESSD · Cumulative emissions from 1930 to 2019 were estimated to be Gt (95 % CI: – Gt), and more strikingly, more than 71 % of which have occurred since 1990. This finding agrees with other studies on cement carbon uptake using similar modelling approaches (Cao et .
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Effect of calcium aluminate cement variety on the ... · Gu P, Beaudoin JJ. Effect of Lithium Salts on Portland Cement/High Alumina Cement Paste Hydration[J]. J. Mater. Sci. Lett., 1995, 14(17):1 207–1 209. Article Google Scholar [7] Gu P, Beaudoin JJ, Quinn EG, et al. Early Strength Development and Hydration of Ordinary Portland Cement Calcium Aluminate Cement Pastes[J].
USB2A cementdirecting structure for use in cementinjection bone therapy includes a collapsible, selfrestoring braided structure with regions of differential permeability to the bone cement. The regions of differential permeability may be provided by areas where the braided mesh density is greater or lesser than surrounding areas and/or by means of a baffle.
Effects of ceramic primers and postsilanization heat ... · This study evaluated the effect of different ceramic primers and heat treatment of silane coupling agents on bond strength of resin cement to glass ceramic. Five ceramic primers (Clearfil Ceramic Primer/CCP, MonoBondS, ProSil, RelyX Ceramic Primer and Silano) and one conventional resin cement (RelyX ARC) were tested. Lithium disiliebased ceramic plates were previously .
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