71 research outputs found

    Экологическая компетентность как интегральный критерий эколого-ориентированной личности (сущностно-функциональный аспект)

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    The article discloses the essence and functions of the ecological competence of personality as an integrative link among the concepts, such as «ecological culture», «ecologically focused professional educational environment», «culture of making ecologically focused administrative decisions», «ecologically focused activity»; and also as a phenomenon integrally reflecting the peculiarities of the manifestation of the structures of the ecologically focused personality.В статье раскрыты сущность и функции экологической компетентности личности как интегративного звена в ряду понятий «экологическая культура», «эколого-ориентированная образовательно-профессиональная среда», «культура принятия эколого-ориентированных управленческих решений», «эколого-ориентированная деятельность» как феномена, целостно отражающего особенности проявления структур эколого-ориентированной личности

    Search for rare Phi decays in pi+ pi_ gamma final state

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    A search for phi radiative decays has been performed using a data sample of about 2.0 million phi decays collected by the CMD-2 detector at VEPP-2M collider in Novosibirsk. From the selected e+ e- -> pi+ pi- gamma events the following results were obtained: B(phi -> f0(980) gamma) < 1x10-4 for destructive and B(phi -> f0(980) gamma) < 7x10-4 for constructive interference with the Bremsstrahlung process respectively, B(phi -> gamma -> pi+ pi- gamma) 20 MeV, B(phi -> rho gamma) < 7x10-4. From the selected e+ e- -> mu+ mu- gamma events B(phi -> mu+ mu- gamma) = (2.3+-1.0)x10-5 has been obtained for E of gamma> 20 MeV. The upper limit on the P,CP-violating decay eta -> pi+ pi- has also been placed: B(eta -> pi+ pi-) < 9x10-4 . All upper limits are at 90 % C.L.Comment: 18 pages, 7 figure

    Feasibility studies for the measurement of time-like proton electromagnetic form factors from p¯ p→ μ+μ- at P ¯ ANDA at FAIR

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    This paper reports on Monte Carlo simulation results for future measurements of the moduli of time-like proton electromagnetic form factors, | GE| and | GM| , using the p¯ p→ μ+μ- reaction at P ¯ ANDA (FAIR). The electromagnetic form factors are fundamental quantities parameterizing the electric and magnetic structure of hadrons. This work estimates the statistical and total accuracy with which the form factors can be measured at P ¯ ANDA , using an analysis of simulated data within the PandaRoot software framework. The most crucial background channel is p¯ p→ π+π-, due to the very similar behavior of muons and pions in the detector. The suppression factors are evaluated for this and all other relevant background channels at different values of antiproton beam momentum. The signal/background separation is based on a multivariate analysis, using the Boosted Decision Trees method. An expected background subtraction is included in this study, based on realistic angular distributions of the background contribution. Systematic uncertainties are considered and the relative total uncertainties of the form factor measurements are presented

    Reactions of 4,4,9-trimethyl-4,9-dihydro-4-silanaphtho[3,2-b]thiophen-9-one with nucleophilic and electrophilic reagents

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    We have studied the reaction of 4,4,9-trimethyl-4,9-dihydro-4-silanaphtho[3,2-b]-thiophen-9-one with organometallic compounds, lithium aluminum hydride, sodium borohydride, aniline, and acetyl nitrate. We have obtained secondary and tertiary dihydrosilanaphtho[3,2-b]thiophen-9-ols and 9-phenyliminodihydrosilanaphtho[3,2-b]thiophene. We have established that nitration of dihydrosilanaphthothiophen-9-one occurs at the α position of the thiophene moiety. ©1998 Plenum Publishing Corporation

    Single picojoule pulse switching of magnetization in ferromagnetic (Ga,Mn)As

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    Contains fulltext : 84030.pdf (publisher's version ) (Open Access)3 p

    Synthesis of 3-demethylphenylsilyl-substituted pyrido[1,2-a]benzimidazoles

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    Reductive cyclization of 1-(2,4-dinitrophenyl)-3-methyl-4-dimethylphenylsilylpyridinium chloride by the action of phenylhydrazine or hydrogen in the presence of Pd/C gave, for the first time, 7-nitro(amino)-3-dimethylphenylsilylpyrido[1,2-a]benzimidazoles. ©1996 Plenum Publishing Corporation

    Observation of giant magnetic linear dichroism in (Ga,Mn)As

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    Contains fulltext : 32798.pdf (publisher's version ) (Open Access

    Synthesis of 3-dimethylphenylsilyl-substituted pyrido[1,2-a]benzimidazoles

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    Picosecond dynamics of the photoinduced spin polarization in epitaxial (Ga,Mn)as films.

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    Contains fulltext : 57451.pdf (publisher's version ) (Open Access)Static and time-resolved magneto-optical spectra of the ferromagnetic semiconductor (Ga,Mn)As show that a pulsed photoexcitation with a fluence of 10 microJ/cm(2) is equivalent to the application of an external magnetic field of about 1 mT, which relaxes with a decay time of 30 ps. This relaxation is attributed to the spin relaxation of electrons in the conduction band and is found to be not affected by interactions with Mn ions
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