The weak proton-proton fusion into a deuteron (2H) is the driving reaction in energy production Sun, as well similar main sequence stars. Its rate solar interior determined only theoretically. Here, we provide new determination of this conditions S11(0), and analyze theoretical experimental sources for uncertainties, using effective field theory Quantum Chromodynamics without explicit pions at ...

The paper investigates the physicochemical regularities (kinetics and isotherm) of phosphorus beryllium recovery by sorbents based on polyacrylonitrile (PAN) fiber Fe(OH)3 obtained various methods: PAN or pre-hydrolyzed with precipitation FeCl3 ammonia, using ready-made electrochemically generated Na2FeO4, treated an alkaline solution as well their comparison granular aluminum oxide. Langmuir, ...

All existing 10Be records from Greenland and Antarctica show increasing concentrations during the Maunder Minimum period (MM), 1645–1715, when solar activity was very low and the climate was colder (little ice age). In detail, however, the 10Be records deviate from each other. We investigate to what extent climatic changes influence the 10Be measured in ice by modeling this period using the ECH...

Of all the light elements, evolution of lithium (Li) in Milky Way is perhaps most difficult to explain. Li synthesize and easily destroyed, making stellar sites unsuitable for producing sufficient quantities account proto-solar abundance. For decades, novae have been proposed as a potential explanation this 'Galactic problem', recent detection 7Be ejecta multiple nova eruptions has breathed new...

In urban areas, forest patches and parks are usually the places where people spend most of their time outdoors. Because poor environmental protection policy insufficient investment in industry energy, Serbia is often ranked among European countries with greatest pollution. recent years, ecological protests have been organized throughout country aim raising awareness resolving issues. The topic ...