Circular Polarization of a γ-Quantum in the Radiative Decay H ⇒ ff ¯ γ . $$ H\Rightarrow \overline{ff}\upgamma . $$ Part I

Russian Physics Journal - The process of radiative decay of a Higgs boson into a fermion-antifermion pair $$ H\Rightarrow \overline{ff}\upgamma . $$ is investigated within the framework of the...     

Biomimetic cyclization of Е,Е-germacranolide (+)-hanphilline

Russian Journal of General Chemistry -     

Chemical composition of a CO2 extract of rose fruit

The chemical composition and physicochemical characteristics of a CO₂ extract of rose fruit have been studied. It was established that the main component of the extract consisted of lipids, and the class and fatty-acid compositions of these are given.Almaty Pharmaceutical Factory Company Limited, 480008, Republic of Kazakhstan, Almaty, ul. Shevchenko, 162-E, fax 42 96 75. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 880–882, November–December, 1997.     

Interaction between monomethylolurea and sodium bicarbonate in water

Processes occurring in the ternary water-salt system containing monomethylolurea and sodium bicarbonate are studied using physicochemical (visual polythermal and isothermal) methods. The germinability and the energy of germination of cotton plant seeds in saline soils is shown to increase due to chemical binding of sodium bicarbonate with monomethylolurea.     

Chemical and biological studies on Cichorium intybus L.

Cichorium intybus L. (Asteraceae family) is a world-wide grown plant known as chicory. In traditional medicine, this plant is used as diuretic, anti-inflammatory, digestive, cardiotonic and liver tonic. Chromatographic purification of the supercritical fluid extract of aerial parts of C. intybus on silica gel column led to isolation of three compounds: new compound, 28β-hydroxytaraxasterol (I), and two known compounds usnic acid (II) and β-sitosterol (III). Purification of the ethanolic extract of aerial parts of this plant on silica gel column chromatography yielded four compounds: 1,3-dioleylglycerate (IV), sitoindoside II (V), 11β-13-dihydrolactucin (VI) and β-sitosterol-3-O-glucoside (VII). The structures of the isolated compounds were determined by their 1D, 2D NMR and MS spectral data. All the fractions and isolated compounds were tested for cannabinoid and opioid receptor binding, as well as antibacterial, antifungal and antimalarial activities. Compound I showed moderate activity (60.5% displacement) towards CB1 receptor.     

Decays of Higgs Bosons Into a Gauge Boson and a Fermion-Antifermion Pair

Russian Physics Journal - Decay channels of the Higgs boson H into a gauge boson and a longitudinally polarized fermion-antifermion pair $$ H\to Z\overline{ff} $$ and $$ H\to...     

Decays of H(h; A) Higgs Bosons into Two Photons (Gluons)

Russian Physics Journal - Within the framework of the Minimal Supersymmetric Standard Model, we have investigated decay channels of Higgs bosons into circularly polarized photons (gluons): H(h; A)...     

Liposoluble pigments from the herb

The liposoluble pigments — carotenoids, chlorophylls, and hypericin — have been determined in a chloroform extract of the herb common St. John's wort. It has been found that, among the carotenoids, the biologically active -carotene and its oxygen-containing derivatives predominate.Almaty Pharmaceutical Factory Company Limited, 180008, Republic of Kazakhstan, Almaty, ul. Shevchenko, 162-E, fax 42 96 75. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 882–883, November–December, 1997.     

Compounds of Acetamide and Its Analogs with Inorganic Acids: Synthesis and Properties

Quantum-chemical calculations with the MOPAC and HYPERCHEM programs and MNDO, AM1, and PM3 methods were used to identify the reaction center in the molecules of protonated acetamide and its analogs (alkylamides) and to determine the effect of their nature on reactivity. The results of calculations are supported by IR and UV data. The change in the reactivity of alkylamides during their reaction with inorganic acids is explained by the effect of the nature of a basic or acid partner.     

Decays of the Higgs Bosons Н, H,A, and H± into a Photon and a Gauge Boson

Russian Physics Journal - Within the framework of the Minimal Supersymmetrtic Standard Model, we have investigated the decay channels of Higgs bosons into a photon and a gauge boson: H(h; A)...