Nikola Kirov

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Spectrophotometric investigations were carried out with five unsaturated fatty acids found in the composition of spermatozoid lipids of animals belonging to four breeds of Ovis amon aries L. Parallel comparative analysis were made of the fatty acids in the lipids extracted from spermatozoa of Landrace swine of the Sus scrofa domestica L. species.(More)
Under normal growth conditions, Balbiani ring granules constitute premessenger ribonucleoprotein (RNP) particles synthesized in two chromosomal puffs, Balbiani ring (BR) 1 and 2, in the larval salivary glands of Chironomus tentans. At least three genes encoding 75S RNA are present in these two BRs: one in BR1 and two in BR2 (BR2.1 and BR2.2). The complexity(More)
The photo-electrical response of donor-acceptor complex formed by carbonyl viologen 1,1'-bis[2-(4methoxyphenyl)-2-oxoethyl]-4,4'-bipyridine-1,1'-diium bromide (as electron acceptor), and 1Aminonaphthalene (electron donor), is studied in acetonitrile solutions under illumination close to solar irradiation conditions. The effect of the donor-to-acceptor molar(More)
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