Common marine low-speed engines have been designed to burn heavy fuel oil (HFO) or marine gas oil (MGO). HFO is produced from residuals of the crude oil refining process and, therefore, contains higher values of inorganic components, such as sulphur, ash, and metals as well as organic com...
Aconitase, an enzyme in the mitochondrial matrix, is able to transform hydrogen peroxide into hydroxyl radicals during a Fenton reaction with its iron–sulphur cluster. Aconitase, though, is easily inhibited by the presence of superoxide (Vasquez-Vivar et al., 2000). The function of many protein...
Here, we identify the enzyme that is responsible for genome duplication of the phage S-2L, a member of the PrimPol family, and we present its crystal structure. We confirm its polymerase activity but find that the enzyme is not specific to A or Z. Instead, we propose that the absence of...
Unexpectedly, Asp8 from one monomer of the ScNsrR homodimer is the fourth ligand to the [4Fe–4S] cluster further coordinated by three invariant Cys residues from the other. In addition, we find a connection between the cluster and a region next to the DNA-binding helix a3 mediated by a...
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leads to the formation of the products. It shows the fate of the atoms in the reactant. It is important to know that in a chemical reaction, the atoms are not created nor destroyed. The number and type of each atom in the ch...
We performed experiments to investigate partitioning of lithophile Nb, Ta, Ce, and Ti between sulfide and simplified basaltic melt and find that they all exhibit, as expected, concave upward behavior on a plot of logD vs. log[FeO]. New experiments on Cu at low FeO contents confirm that ...
Do you see the brown dots on the three rings surrounding the cluster of 13 blue protons? The labeling for where the electrons are located on the atom work from the inside to the outside. The innermost ring is your 1s, which has twoelectrons. The middle ring contains your six2p electrons...
In order to maintain an economic order in the world it is therefore imperative that thefuture energy and chemical needs are secured. In the short—term we must curb on wastefulconsumption of oil and in the long—term dependence on oil must be reduced. Alternativeresources such as coal, tar...
of sulphur and sulphides with the production of sulphides, arsenides or arsenites, and under the action of air these may be volatilized. But as this reducing action is in every case endothermic, it is very unlikely to take place under the conditions of low temperature and oxidation ...