We developed an amorphous Ti-Si-O thin film without any harmful element.
This paper presents a method for reconstructing the initial baseline relationship between potentially harmful element (PHE) and conservative element (CE) concentrations in urban puddle sediment samples.
The book's title is plural for a reason: He argues that the Soviet elimination of a social class, the kulaks (who were higher-income farmers), and the subsequent killer famine among all Ukrainian peasants – as well as the notorious 1937 order No. 00447 that called for the mass execution and exile of "socially harmful elements" as "enemies of the people" – were, in fact, genocide.
Many studies have shown that populations exposed to high concentrations of potentially harmful elements (PHE) such as As, Cr, Cu, Ni, Pb, Se and Zn in the environment can have their health adversely affected (Mielke et al. 2011; Nriagu 2011; Selinus 2005; Skinner and Berger 2003; WHO 1996).
For those who can afford it, the cost of installing such systems to protect family health is small, but for those who are economically disadvantaged, a water treatment system to remove As (and other potentially harmful elements) may not be a high priority.
As a harmful gas in underground coal mine, CO seriously threatened the safety of miners.
Female circumcision is rightly recognized as a harmful practice.
Results showed a mean AUDIT score of 16, which is categorized as a harmful drinking level.
It is of great significance that guttation is a means of excreting excess of harmful elements such as Ni, Se, etc. from metal-enriched soils thereby promoting plant growth on such inhospitable soils.
Consequently, those individuals with harmful elements (as per Koonin/Martin) will be at a selective disadvantage relative to those without, and element-carrying individuals are not predicted to spread within the population.
Bulk chemical analysis of aluminized MCrAlX foils indicated that the CVD low activity process removes potentially harmful elements (such as chromium, sulfur and phosphorus) from the MCrAlX during aluminizing, while pack cementation increased the concentrations of some impurities.
