in recent years, increased public awareness of the detriment of consuming common products, during whose production chemical fertilizers and pesticides are used, on the one hand, and also the benefits of organic farming for health and environment, on the other hand, have caused an increase in the demand for organic products. due to the yield loss in product in organic farming because of the lack...

It is an essential goal of conservation biology to find a way to sustainably meet the food needs of an exponentially increasing population without damaging the environment and the ecosystem services it provides us. The difficulty with “sustainable agriculture” is that there is much disagreement as to what it entails and how to approach it. Thus far, the organic movement has dominated practices ...

Precise manipulation of organic donor-acceptor interfaces using spacer layers is demonstrated to suppress interface recombination in an organic photo-voltaic device. These strategies lead to a dramatic improvement in a model bilayer system and bulk-heterojunction system. These interface strategies are applicable to a wide variety of donor-acceptor systems, making them both fundamentally interes...

It is described in detail the article organic potential of European countries and Ukraine through prism specific indicators that characterize it. determined fullest any state revealed a system such indicators: land use farming; number producers certified products; volumes retail trade exports imports cost consumption products per person; largest importers products, etc. Based on constructed com...

Thermodynamic analysis of a novel combined system which is combination of methane fired gas turbine cogeneration system (CGAM) with a supercritical CO2 recompression Brayton cycle (SCO2) and an Organic Rankine Cycle (ORC) is reported. Also, a comprehensive parametric study is performed to investigate the effects on the performance of the proposed system of some important parameters. Finally, a ...

TiO2 nanoparticles/melamine Tri sulfonic acid (MTSA) supported on silica gel as an efficient catalytic system for simple, one pot, solvent-free and environmentally benign process for synthesis of dihydropyrimidines via Biginelli reaction at 110 °C is described. It was found that the catalyst is reusable and exhibited remarkable activity. The catalyst can be easily separated and reused several t...

Organic farming is characterized by several goals that are expressed in daily practices and in standards. Some of the important goals for organic production systems are naturalness, harmony on all levels of production, local recycling of resources, and the principle of precaution (Anonymous, 2002). For organic herds, good animal welfare is an explicit goal, and this includes that the overall go...