background: biomonitoring provides a useful tool to estimate the genetic risk from exposure to genotoxic agents. the aim of this study was to assess the potential cytogenetic damage associated with occupational exposure to hexavalent chromium by using micronuclei (mn) as a biomarker. methods: this was a cross-sectional study and all participants were males. both the exposed and control individu...

Abstract Rheology of alkali-activated slag (AAS) is a very complex issue, where the activator nature as well its dose play an important role. Moreover, use water-reducing admixtures in these systems they often do not work properly. This could be attributed to high pH surface chemistry AAS. Therefore, lignosulfonate-, polynaphthalene- and polycarboxylate-based superplasticizers were used modify ...

Google Chrome has implemented a number of “HTML5” APIs, including the Geolocation API and various storage APIs. In this paper we discuss some of our experiences on the Google Chrome team in implementing these APIs, as well as our thoughts around privacy for new APIs we are considering implementing. Specifically, we discuss our ideas of how providing access to things such as speech, web cameras,...

Background Context: Hybrid spinal implants that combine cobalt-chrome rods with titanium screws have been introduced with the goal of reducing the profile of implants used for lumbar fusion. 4.5mm and 4.75mm cobalt-chrome rods have been reported by the manufacturers as having similar results in biomechanical testing to conventional 5.5mm titanium rods, however little is known about the long-ter...

In this paper we offer an initial sketch of a new vantage point we are developing to study “the Web” and users' interactions with it: we have instrumented the Web browser itself. The Google Chrome browser provides an API to developers that allows the building of extensions to the base functionality. As part of this system, Chrome allows developers to add listeners to various browser events. Our...

astewaters from all processes w are collected by gravity flow into acid-alkali (rinses), chromate, cyanide, spenttstripping acids, and cleaner sumps. The acid concentrates and cleaner concentrates are gradually fed into chromate and acid-alkali (rinse) sumps, respectively. Cyanide destruction is achieved by oxidation with sodium hypochlorite whereas hexavalent chrome is reduced to trivalent chr...

Stainless steel laser-drilled screens (SSL screens) for continuous sugar centrifugals are compared with several types of chrome/nickel screens. Assessments are made of trials and routine operations at several factories around the world, and results of final molasses purity analyses, screen service life, and centrifugal capacities are examined. A semi-quantitative comparison is made between Aust...

At yearly intervals we compared the radiological wear characteristics of 81 alumina ceramic femoral heads with a well-matched group of 43 cobalt-chrome femoral heads. Using a computer-assisted measurement system we assessed two-dimensional penetration of the head into the polyethylene liner. We used linear regression analysis of temporal data of the penetration of the head to calculate the true...

TWO different spinels, analyses of which are given, occur in the layered ultramafic rocks at Dawros. Chrome spinel occurs both as gravity-stratified cumulates and as complex orbs, while an Al-rich spinel is both in rocks of the main Dawros magmatic sequence and in an association with an aluminous bronzite, which may originate by recrystallization. It is concluded that while the chrome spinel is...