The application of lanthanum modified bentonite (Phoslock®) and polyaluminium chloride (PAC) is popular in the restoration European temperate lakes; however, effects on concentrations phosphorus (P) both water sediments have been poorly evaluated to date. We studied Phoslock® + PAC total (TP), particulate (PP), soluble reactive (SRP), suspended solids (TSS) chlorophyll a (Chla) water, different...

that the macronucleus of Euplotes is excellent material for studying relations between DNA, RNA, and protein synthesis during nuclear replication. Replication bands normally originate at the two tips of the long, rod-shaped macro-nucleus during the early hours of interphase and progress as two waves of D N A synthesis until they meet in the center. In the light microscope one sees that two mark...

the extraction-separation of lanthanum and europium ions with bis(2-ethylhexyl) phosphoric acid (dehpa) in cyclohexane was improved by adding 12-crown-4 (12c4) to the aqueous phase as a masking agent. in the presence of this crown ether the extraction curve of lanthanum ions versus ph shifts to the higher ph region, while the curve is not influenced for the europium ions. consequently the separ...

Europium and terbium-doped lanthanum hydroxycarbonate and lanthanum oxycarbonate nanoparticles were fabricated under two different reaction conditions using lanthanide acetate and urea as the starting materials. The photoluminescence properties of these hydroxycarbonate and oxycarbonate particles, and of their colloidal suspensions in water, were studied. The Eu(3+) (5)D(0)→(7)F(J) and Tb(3+) (...

Micro- and nanocrystalline lanthanum-samarium ferrites La1-x Sm x FeO3 with orthorhombic perovskite structure were obtained by using both solid state reactions (x = 0.2, 0.4, 0.6 and 0.8) and sol-gel synthesis (x = 0.5) techniques. Obtained structural parameters of both series of La1-x Sm x FeO3 are in excellent agreement with the "pure" LaFeO3 and SmFeO3 compounds, thus proving formation of co...

Ostreolysin (Oly), a cytolytic and cardiotoxic protein from the oyster mushroom (Pleurotus ostreatus), is lethal for mice with an LD(50) of 1170 microg/kg following intravenous application. Its cardiotoxicity is associated with hyperkalemia, which is probably a consequence of potassium released from the lysed cells. Moreover, sub-micromolar concentrations of Oly induce a concentration-dependent...

Wnk kinase maintains cell volume, regulating various transporters such as sodium-chloride cotransporter, potassium-chloride cotransporter, and sodium-potassium-chloride cotransporter 1 (NKCC1) through the phosphorylation of oxidative stress responsive kinase 1 (OSR1) and STE20/SPS1-related proline/alanine-rich kinase (SPAK). However, the activating mechanism of Wnk kinase in specific tissues an...

The object of research: kinetics filtration drying process iron (II) sulfate heptahydrate.
 Solved problem: to obtain the calculated dependence drying, which predicts nature change in moisture content material time during period complete saturation thermal agent with range heights layer 30.10-3–120.10-3 m and speeds 0.46–1.61 m/s.
 Main scientific results: heptahydrate was investigate...

Lanthanum zinc penta-borate, LaZnB(5)O(10), was synthesized by flux-supported solid-state reaction. It is a member of the LnMB(5)O(10) (Ln = rare earth ion and M = divalent metal ion) structure type. The crystal shows a three-dimensional structure constructed from two-dimensional {[B(5)O(10)](5-)}(n) layers with the lanthanum (coordination number nine) and zinc (coordination number six) ions fi...