We measured the abundances of Sr and rare earth elements (REEs) in the matrices of five CV3 carbonaceous chondrites: Meteorite Hills (MET) 00430, MET 01070, La Paz ice field (LAP) 02206, Asuka (A) 881317 and Roberts Massif (RBT) 04143. In the MET 00430 and MET 01074 matrices, the Sr/CI and light REE (LREE, La–Nd)/CI ratios positively correlate with the amounts of Ca-rich secondary minerals, whi...

It was previously reported that the hair of Mongolian people showed very high accumulation of manganese (Mn), which may increase oxidative stress. This study (2 nd report), indicated that not only Mn but other minerals had also accumulated at high levels in hair. It describes the influence of these minerals on oxidative stress, Parkinson’s disease-like symptom (Parkinsonism) and arthritis, thes...

in the united states, 40 – 50% of the men and women 50 years of age or older regularly use multivitamin/mineral (mvm) supplements, making the annual sales of these supplements over $11 billion. however, the question remains whether using mvm supplements is beneficial to health. this article reviews the results of randomized studies of mvm supplements and individual vitamins/mineral supplements ...

topography and climate are two important soil forming factors affecting genesis and clay mineralogy of soils. calcareous and gypsiferous soils are widely spread in arid and semiarid parts of iran and palygorskite is a dominant clay mineral in these soils. the objectives of the study were to: (1) determine soil genesis and classification along the climotoposequence and (2) investigate clay miner...

BACKGROUND Multivitamin/multimineral (MVM) supplements are commonly consumed by the general population, but little is known regarding their composition and compliance with local regulations. We assessed the composition and compliance with regulations [no indication in the label of vitamin/minerals amounting <15% of the acceptable daily intake (ADI)] of MVM available in Switzerland. METHODS Th...

Calcium oxalate and silica minerals are common components of a variety of plant leaves. These minerals are found at different locations within the leaf, and there is little conclusive evidence about the functions they perform. Here tools are used from the fields of biology, optics, and imaging to investigate the distributions of calcium oxalate, silica minerals, and chloroplasts in okra leaves,...

Abstract Disruptions in the minerals supply chain play a central role defining future stock of minerals; therefore, an in-depth analysis outcomes and variables affecting exploration is required. In comparative terms, critical major presents geological technical differences; thus, budgets for should be expected to depart from those observed other minerals. this context, main goal paper contrast ...

The inorganic matter i n coal can be c lass i f ied into three groups of minerals according t o t h e i r reactions w i t h hydrogen sulfide ( H S ) : (1) basic minerals, (2) minerals w i t h c a t a ly t i c ac t iv i ty , and f 3 ) i ne r t minerals. In the range of temperatures 200-90OoC, most of the minerals a re ine r t o r have a s l i gh t ca t a ly t i c ac t iv i ty on the r a t e of d...