Quantifying genome-specific carbon fixation in a 750-meter deep subsurface hydrothermal microbial community.

Dissolved inorganic carbon has been hypothesized to stimulate microbial chemoautotrophic activity as a biological sink in the carbon cycle of deep subsurface environments. Here, we tested this hypothesis using quantitative DNA stable isotope probing of metagenome-assembled genomes (MAGs) at multiple 13C-labeled bicarbonate concentrations in hydrothermal fluids from a 750-m deep subsurface aquifer in the Biga Peninsula (Turkey). The diversity of microbial populations assimilating 13C-labeled bicarbonate was significantly different at higher bicarbonate concentrations, and could be linked to four separate carbon-fixation pathways encoded within 13C-labeled MAGs.

A wide-range multiphase equation of state for platinum.

The paper presents a semi-empirical wide-range equation of state (EOS) for platinum with account for melting, evaporation, and ionization. The equation is based on a wide spectrum of experimental and calculation data. Parameters for the EOS were adjusted using a genetic algorithm which proved to perform well for optimizations in big data processing.

[Langerhans cell histiocytosis: Skin diseases and visceral lesions].

Langerhans cell histiocytosis (LCH) is a rare clonal proliferative disorder that belongs to class I histiocytoses and is characterized by infiltration of one or many organs by Langerhans cells to form granulomas. The literature analysis could identify a lot of etiological, pathogenetic, and trigger factors and mechanisms for LCH development, which determine the diversity of the clinical picture and course of the disease. The clinical manifestations of LCH are very variable and depend on the severity of lesions and the age of patients.

[The clinical results and lipid peroxidation dynamics in the patients presenting with psoriasis treated by the applications of a natural highly mineralized bromine-iodine brine].

The authors report the results of the treatment of 64 patients presenting with psoriasis by the applications of a natural highly mineralized bromine-iodine brine. The method has been shown to be highly efficacious and safe. It allowed the clinical remission and marked improvement of the patients' clinical conditions to be achieved in 48 (77.

[The modern concepts of pyoderma gangrenosum].

The review provides an update on pyoderma ganrenosum, a rare chronic disease from a group of neutrophilic dermatoses. It considers its pathogenesis, its association with background visceral disease, and the specific features of skin and visceral involvement. Major and minor diagnostic criteria and differential treatment approaches are given.