According to the Oppel-Kundt illusion, a filled space appears larger than an empty one. In the present research we studied how textural characteristics affect the perceived size of two-dimensional patterns. We investigated the perceived extension of square textures by manipulating spatial frequency and filling microelements' numerosity. Subjects compared the test stimuli with a uniform gray squ...

Objective. This study investigated the elemental composition of unsweetened natural cocoa powder (UNCP), its effect on nitric oxide, and its hepatoprotective potential during simultaneous administration with high-dose artemether/lumefantrine (A/L). Method. Macro- and microelements in UNCP were analyzed with EDXRF spectroscopy. Thirty (30) male guinea-pigs were then divided into five groups. For...

Agricultural applications of chemical fertilizers are a world wide practice. The specific activity of uranium-238 and heavy metals in phosphate fertilizers depends on the phosphate ore from which the fertilizer produced and on the chemical processing of the ore. Composite phosphate fertilizers samples where collected and the uranium-238 specific activity, in Bq/kg, and As, Cd, Cu, Pb, Se concen...

Host nutritional variables were evaluated for their effects on the severity of crown and root rot of tomato caused by Fusarium oxysporum f.sp. radicis-lycopersici. Tomato (Lycopersicon esculentum Mill.) seedlings (cv. Bonnie Best) were grown in a pathogeninfested, soilless rockwool system in the greenhouse and were fertilized with a nutrient solution that was amended with macroand microelements...

SALA�, P.: Slow-release fertilizers and possibilities of their utilizing in nursery. Acta univ. agric. et silvic. Mendel. Brun., 2004, LII, No. 2, pp. 155-164 Reserve, slow-release fertilizers (SRF) enable to simplify the whole system of plant nutrition and fertilisation. Tabletted fertilizers of the Silvamix series represent a prospective product of Czech provenience. At our university, these ...

The study of patterns the formation ear productivity depending on content potentially bioavailable Fe, Mn, Zn, Cu in soil, stochastic formalization such are important for a more profound understanding conceptual and mechanistic aspects dependence yield development levels nutrient supply winter wheat under conditions environmentally friendly fertilization systems. purpose this was to find statis...

The article gives research data of indicators sanitary state the soils in Rivne region as for content microelements and heavy metals, such boron, manganese, zinc, cupre, plumb, cadmium, radiative caesium-137 soils, density radon flow out their surface, level its ecological safety. It is recommended to carry estimation safety districts, stimulators boron manganese according dependencies which ha...

People use many chemicals in their economic activities, which leads to the fact that they become involved a cycle of anthropogenic transformations environment. It was proved microelements and heavy metals are most toxic among pollutants. Microelements arable layer soil depend on type soils, location content soil-forming rocks. The studies revealed all cases is lower than APC (MPC). products obt...