Specific of accumulation of manganese in organs and tissues of Hereford cattle.

The elemental status of cattle is one of the important factors, which determine its growth, fertility, fetal development, meat and dairy production, etc. Therefore, the study of content of different elements in cattle organs and tissues and its correlation with cattle characteristics and diet is urgent task. It is also important to develop intravital and low-invasive methods to analyze element content in cattle to regulate its diet during lifetime.

Sustainable Fertilizers: Publication Landscape on Wastes as Nutrient Sources, Wastewater Treatment Processes for Nutrient Recovery, Biorefineries, and Green Ammonia Synthesis.

The ability of modern agriculture to meet future food demand imposed by accelerating growth of the world's population is a major challenge, and fertilizers play a key role by replacing nutrients in agricultural soil. Given the need for fertilizers, their cost in nonrenewable resources and energy, and the consequences of the greenhouse gas emissions required to make them, people have begun to explore ways to make fertilizer manufacturing and use more sustainable. Using data from the CAS Content Collection, this review examines and analyzes the academic and patent literature on sustainable fertilizers from 2001 to 2021.

Materials Research Directions Toward a Green Hydrogen Economy: A Review.

A constellation of technologies has been researched with an eye toward enabling a hydrogen economy. Within the research fields of hydrogen production, storage, and utilization in fuel cells, various classes of materials have been developed that target higher efficiencies and utility. This Review examines recent progress in these research fields from the years 2011-2021, exploring the most commonly occurring concepts and the materials directions important to each field.

[The method for prediction of high-grade premature ventricular contractions in patients with heart failure and preserved ejection fraction].

Aim To develop a method for prediction of high-grade ventricular extrasystole (VE) in patients with chronic heart failure with preserved ejection fraction (CHF-PEF) based on results of an echocardiography (EchoCG) study.Material and methods At the first step, the study included 121 patients of the Cardiology Department, Municipal Clinical Hospital #31, St. Petersburg (calculation group) with symptoms and clinical signs of CHF-PEF (median age, 62 years).

Phosphatidylcholine and phosphatidylethanolamine plasmalogens in lipid loaded human macrophages.

Background: Plasmalogens are either phosphatidylcholine (PC P) or phosphatidylethanolamine (PE P) glycerophospholipids containing a vinyl ether moiety in sn-1-position and an esterified fatty acid in sn-2 position. Multiple functions have been proposed, including reservoir of precursors for inflammatory mediators, modulation of membrane fluidity, and anti-oxidative properties. They could therefore play a role under conditions of metabolic stress.