In this study, the effects of some factors on bacterial growth and ferrous oxidation rates were investigated by Acidithiobacillus ferrooxidan in 250 ml shake flasks. One factor at a time (OFAT) design approach was used for preliminary evaluation of various factors affecting the process, such as pH, initial ferrous and elemental sulfur concentrations, shaker agitation rate, and liquid to flask v...

This research examines the participants in the de jure standard setting in Japan, so as to understand the benefits and costs that corporations receive from participation. In particular, the research and development (R&D) expenditure to sales (R/S) ratio is used to examine corporations’ relative R&D position in their industry sector, in the following four sectors: (1) production machinery, (2) t...

Anoxic iron-rich sediment samples that had been stored in the light showed development of brown, rusty patches. Subcultures in defined mineral media with ferrous iron (10 mmol/liter, mostly precipitated as FeCO3) yielded enrichments of anoxygenic phototrophic bacteria which used ferrous iron as the sole electron donor for photosynthesis. Two different types of purple bacteria, represented by st...

Currently, a new development trend is being formed in the world associated with decarbonization of economies. This process based on institutionalization ESG-principles – an approach to doing business, characterized by involvement companies solving environmental, social and governance problems. The at international level was initiated 1948 adoption Universal Declaration Human Rights under auspic...

Pretreatment with low-dose thrombin attenuates brain edema induced by iron or intracerebral hemorrhage (ICH). Ceruloplasmin is involved in iron metabolism by oxidizing ferrous iron to ferric iron. The present study examines whether thrombin modulates brain ceruloplasmin levels and whether exogenous ceruloplasmin reduces brain edema induced by ferrous iron in vivo. In the first set of experiment...

The wide application of ferrous materials is attributed to its amenability to alloying and heat treatment which makes it possible to modify its properties to suit specific service requirements. Among such applications is the development and modification of ductile iron with zirconia to enhance its strength and corrosion resistance, and this could be used to a large extent in the production of a...

UNLABELLED Iron has been suggested to reduce the erosive potential of cola drinks in vitro. OBJECTIVE The aim of this study was to evaluate in situ the effect of ferrous sulfate supplementation on the inhibition of the erosion caused by a cola drink. MATERIAL AND METHODS Ten adult volunteers participated in a crossover protocol conducted in two phases of 5 days, separated by a washout perio...

Yanlin Yu 1, Wei Xiao 1,2, Jianwei Wang 1 and Ligen Wang 1,3,* 1 General Research Institute for Nonferrous Metals, Beijing 100088, China; [email protected] (Y.Y.); [email protected] (W.X.); [email protected] (J.W.) 2 School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 3 Power Environmental Energy Research Institute, Covina, CA 91722, ...