The low-temperature germinating spores of the thermophilic contribute to an extremely high sulfate reduction in burning coal seams.

Burning coal seams, characterized by massive carbon monoxide (CO) emissions, the presence of secondary sulfates, and high temperatures, represent suitable environments for thermophilic sulfate reduction. The diversity and activity of dissimilatory sulfate reducers in these environments remain unexplored. In this study, using metagenomic approaches, activity measurements with a radioactive tracer, and cultivation we have shown that members of the genus are responsible for the extremely high sulfate reduction rate (SRR) in burning lignite seams in the Altai Mountains.

Carbon Double Coated FeO@C@C Nanoparticles: Morphology Features, Magnetic Properties, Dye Adsorption.

This work is devoted to the study of magnetic FeO nanoparticles doubly coated with carbon. First, FeO@C nanoparticles were synthesized by thermal decomposition. Then these synthesized nanoparticles, 20-30 nm in size were processed in a solution of glucose at 200 °C during 12 h, which led to an unexpected phenomenon-the nanoparticles self-assembled into large conglomerates of a regular shape of about 300 nm in size.

AY5 Isolated from a Patient with Autism Spectrum Disorder Binds Iron in Low-Soluble Greigite and Pyrite.

The sulphate-reducing bacteria (SRB) of genus are a group of prokaryotes associated with autism spectrum disorders (ASD). The connection between the elevated numbers of in the gut of children with ASD compared with healthy children remains unresolved. A conceivable consequence of SRB overgrowth in the gut is the conversion of bioavailable iron into low-soluble crystalline iron sulphides, causing iron deficiency in the organism.

Magnetic Fractions of PM, PM, and PM from Coal Fly Ash as Environmental Pollutants.

Characterization of magnetic particulate matter (PM) in coal fly ashes is critical to assessing the health risks associated with industrial coal combustion and for future applications of fine fractions that will minimize solid waste pollution. In this study, magnetic narrow fractions of fine ferrospheres related to environmentally hazardous PM, PM, and PM were for the first time separated from fly ash produced during combustion of Ekibastuz coal. It was determined that the average diameter of globules in narrow fractions is 1, 2, 3, and 7 μm.

Electronic and magnetic states of Fe ions in CoFeBO.

The ludwigite Co2FeBO5 has been studied experimentally using 57Fe Mössbauer spectroscopy and theoretically using DFT + GGA calculations. The room-temperature Mössbauer spectra are composed of four quadrupole doublets corresponding to the high-spin Fe3+ ions in octahedral oxygen coordination. All components undergo splitting below 117 K due to the magnetic hyperfine fields.

Effect of Electronic Correlations on the Electronic Structure, Magnetic and Optical Properties of the Ternary RCuGe Compounds with R = Tb, Dy, Ho, Er.

In this study, the ab initio and experimental results for RCuGe ternary intermetallics were reported for R = Tb, Dy, Ho, Er. Our theoretical calculations of the electronic structure, employing local spin density approximation accounting for electron-electron correlations in the 4f shell of Tb, Dy, Ho, Er ions were carried in DFT+U method. The optical properties of the RCuGe ternary compounds were studied at a broad range of wavelengths.

Characterization of the iron oxide phases formed during the synthesis of core-shell FeO@C nanoparticles modified with Ag.

Core-shell FeO@C nanoparticles (NPs) modified with Ag were studied with x-ray diffraction, transmission electron microscopy, energy dispersive elemental mapping, Mössbauer spectroscopy, static magnetic measurements, and optical magnetic circular dichroism (MCD). FeO@C NPs synthesized by the pyrolysis process of the mixture of Fe(NO) · 9HO with oleylamine and oleic acid were added to a heated mixture of oleylamine and AgNO in different concentrations. The final product was a mixture of iron oxide crystalline NPs in an amorphous carbon shell and Ag crystalline NPs.

Impression of magnetic clusters, critical behavior and magnetocaloric effect in FeAl alloys.

Herein, we report unusual magnetic behavior in arc melted bulk stoichiometric FeAl alloy with a D0 structure. The temperature variation in the magnetization measurements revealed two transitions, i.e.

New Alzheimer amyloid beta responsive genes identified in human neuroblastoma cells by hierarchical clustering.

Alzheimer's disease (AD) is characterized by neuronal degeneration and cell loss. Abeta(42), in contrast to Abeta(40), is thought to be the pathogenic form triggering the pathological cascade in AD. In order to unravel overall gene regulation we monitored the transcriptomic responses to increased or decreased Abeta(40) and Abeta(42) levels, generated and derived from its precursor C99 (C-terminal fragment of APP comprising 99 amino acids) in human neuroblastoma cells.

Increased expression of cell-cell signaling genes by stimulated mononuclear leukocytes in patients with previous atherothrombotic stroke. A whole genome expression profile study.

Background/aims: Inflammation plays an important role in atherosclerosis and stroke. Acute infections are recognized as trigger factors for ischemic stroke.

Methods: In this whole genome expression profile study of 15 patients and 15 control subjects, we tested the hypothesis that patients with a history of atherothrombotic stroke show enhanced transcription of inflammatory genes in circulating leukocytes.

Upregulation of CRABP1 in human neuroblastoma cells overproducing the Alzheimer-typical Abeta42 reduces their differentiation potential.

Background: Alzheimer's disease (AD) is characterized by neurodegeneration and changes in cellular processes, including neurogenesis. Proteolytic processing of the amyloid precursor protein (APP) plays a central role in AD. Owing to varying APP processing, several beta-amyloid peptides (Abeta) are generated.

AXL is a potential target for therapeutic intervention in breast cancer progression.

Protein kinases play important roles in tumor development and progression. A variety of members of this family of signal transduction enzymes serve as targets for therapeutic intervention in cancer. We have identified the receptor tyrosine kinase (RTK) AXL as a potential mediator of motility and invasivity of breast cancer cells.

Further studies with a cell immortalization assay to investigate the mutation signature of aristolochic acid in human p53 sequences.

To test hypotheses on the origins of p53 mutations in human tumors, novel strategies are needed for generating mutation spectra experimentally. To this end we developed an assay employing Hupki (Human p53 knock-in) mouse embryonic fibroblasts (HUFs). Here we examine p53 mutations induced by aristolochic acid I (AAI)), the carcinogen probably responsible for Chinese herbal nephropathy.

Lipid-protein complexes in erythrocyte membrane in late gestosis.

Gestosis is characterized by increased rigidity of the surface and deep layers of erythrocyte membranes, impaired protein-lipid relationships, and imbalance between LPO and the antioxidant defense system. These changes determine the prognosis and complications of this condition.