1,256 research outputs found
Development of dysbiosis in the organism of rats receiving a high-fat diet
Background. To determine the effect on the degree of dysbiosis in the organs and tissues of rats treated with high-fat diet (HFD) using fats with various fatty acid compositions.Methods. We used ordinary (high-linoleic) sunflower oil, high-oleic sunflower oil, butter, palm and coconut oils. Rats were fed with 15 % of each of the fats for 64 days. In the blood serum from v.cava and v. porta, in the liver, heart, brain, skeletal muscles and intestinal mucosa, urease activity (an indicator of bacterial insemination), lysozyme activity (a factor of non-specific immunity) were determined, and the degree of dysbiosis was calculated from the ratio of relative urease and lysozyme activities.Β Results. The activity of urease in the blood of v. porta increased in rats treated with HFD, and was significantly higher than in the blood of v.cava. In most of the studied tissues, urease activity increased after HFD, with the exception of rats receiving high-oleic sunflower oil (HOSO). In contrast, lysozyme activity was reduced in most tissues, with the exception of rats treated with HOSO. The degree of dysbiosis increased after HFD with the exception of rats treated with HOSO.Conclusion. HFD increases the translocation of bacteria from the intestine. The liver partially neutralizes the microflora coming from the intestines. In blood serum from v. cava and v. porta, urease activity (an indicator of bacterial contamination), lysozyme activity (nonspecific immunity factor) were determined in the liver, heart, brain, skeletal muscle and intestinal mucosa, and the degree of dysbiosis was calculated by the ratio of the relative activities of urease and lysozyme.Results. Blood urease activity v. porta was elevated in rats treated with HFD and was significantly higher than in blood v. cava. In most of the tissues studied, urease activity increased after HFD with the exception of rats treated with high oleic sunflower oil (HOSO), the development of dysbiosis in all tissues of the body. The exception is HOSO, which does not cause the development of dysbiosis and inflammation
Hadron and Quark Form Factors in the Relativistic Harmonic Oscillator Model
Nucleon, pion and quark form factors are studied within the relativistic
harmonic oscillator model including the quark spin. It is shown that the
nucleon charge, magnetic and axial form factors and the pion charge form factor
can be explained with one oscillator parameter if one accounts for the scaling
rule and the size of the constituent quarks.Comment: 9 pages, Latex, 3 postscript figures, DFTT 8/9
The Boltzmann equation for colourless plasmons in hot QCD plasma. Semiclassical approximation
Within the framework of the semiclassical approximation, we derive the
Boltzmann equation describing the dynamics of colorless plasmons in a hot QCD
plasma. The probability of the plasmon-plasmon scattering at the leading order
in the coupling constant is obtained. This probability is gauge-independent at
least in the class of the covariant and temporal gauges. It is noted that the
structure of the scattering kernel possesses important qualitative difference
from the corresponding one in the Abelian plasma, in spite of the fact that we
focused our study on the colorless soft excitations. It is shown that
four-plasmon decay is suppressed by the power of relative to the process of
nonlinear scattering of plasmons by thermal particles at the soft momentum
scale. It is stated that the former process becomes important in going to the
ultrasoft region of the momentum scale.Comment: 41, LaTeX, minor changes, identical to published versio
Spiral Growth and Step Edge Barriers
The growth of spiral mounds containing a screw dislocation is compared to the
growth of wedding cakes by two-dimensional nucleation. Using phase field
simulations and homoepitaxial growth experiments on the Pt(111) surface we show
that both structures attain the same characteristic large scale shape when a
significant step edge barrier suppresses interlayer transport. The higher
vertical growth rate observed for the spiral mounds on Pt(111) reflects the
different incorporation mechanisms for atoms in the top region and can be
formally represented by an enhanced apparent step edge barrier.Comment: 11 pages, 4 figures, partly in colo
Parity violating cylindrical shell in the framework of QED
We present calculations of Casimir energy (CE) in a system of quantized
electromagnetic (EM) field interacting with an infinite circular cylindrical
shell (which we call `the defect'). Interaction is described in the only
QFT-consistent way by Chern-Simon action concentrated on the defect, with a
single coupling constant .
For regularization of UV divergencies of the theory we use % physically
motivated Pauli-Villars regularization of the free EM action. The divergencies
are extracted as a polynomial in regularization mass , and they renormalize
classical part of the surface action.
We reveal the dependence of CE on the coupling constant . Corresponding
Casimir force is attractive for all values of . For we
reproduce the known results for CE for perfectly conducting cylindrical shell
first obtained by DeRaad and Milton.Comment: Typos corrected. Some references adde
A Cosmological Theory without Singularities
A theory of gravitation is constructed in which all homogeneous and isotropic
solutions are nonsingular, and in which all curvature invariants are bounded.
All solutions for which curvature invariants approach their limiting values
approach de Sitter space. The action for this theory is obtained by a higher
derivative modification of Einstein's theory. We expect that our model can
easily be generalized to solve the singularity problem also for anisotropic
cosmologies.Comment: 25 pages, 11 figures (available as hard copies from the authors),
uses phyzzx, BROWN-HET-89
Measurements of light background at large depth in the ocean
The mean intensity of Cerenkov emission from the products of K(40) decay and bioluminescence was measured at depths to 5 km. The intensity of ocean light background is found to depend upon depth and at the 5 km level is equal on averaged to 300 + or - 60 quanta/sq cms into spatial angle of 2 pi sterradian in transparency window. The amplitudes, duration and number of BL flashes were measured at various depths. The intensive flashes due to BL are shown to be observed rather seldom at depths over 4 km
ΠΠ·Π°ΡΠΌΠΎΠ΄ΡΡ 4,5-Π΄ΠΈΡΠΎΡΠΌΡΠ»-2,3,6,7,8,10-Π³Π΅ΠΊΡΠ°Π³ΡΠ΄ΡΠΎΠ°ΠΊΡΠΈΠ΄ΠΈΠ½-8Π°(1Π)-ΠΊΠ°ΡΠ±ΠΎΠ½ΡΡΡΠΈΠ»Ρ Π· N-Π½ΡΠΊΠ»Π΅ΠΎΡΡΠ»Π°ΠΌΠΈ
Schiff bases are of practical interest as initial materials both for the combinatorial synthesis for libraries of compounds, and for preparation of complexes with metals; thus, currently the intensity of research in this direction is increasing. The possibilities of practical use of complex compounds with organic ligands are quite broad varying from effective catalysts of various chemical processes to molecular sensors. While studying formylation of 5,6,7,8-tetrahydro-1H-spiro[cyclohexane-1,2-quinazolin]-4β(3βH)-one a new domino reaction, which makes it possible to obtain tricyclic acridine systems, has been carried out. In spite of the reduced electrophilicity of the aldehyde groups in 4,5-diformyl-2,3,6,7,8,10-hexahydroacridine-8Π°(1H)-carbonitrile the latter is shown to react with various amines in benzene with azeotropic removal of water using p-TsOH as a catalyst, and with hydroxylamine hydrochloride in i-PrOH. New Schiff bases and oxime obtained are of potential interest as ligands for formation of chelate complexes. The reaction of dialdehyde with N2H4ΓH2O instead of the expected hydrazone resulted in obtaining a macrocyclic compound β a derivative of hexaazacyclooctadecine. The structure of the compounds obtained corresponds to the data of 1H NMR-spectroscopy, mass spectrometry and elemental analysis. The preliminary studies have shown that azomethines β 4,5-phenyl(cyclohexcyl)iminomethyl-2,3,6,7,8,10-hexahydroacridine8Π°(1H)-carbonitrile create complexes with copper and nickel ions.ΠΡΠ½ΠΎΠ²Π°Π½ΠΈΡ Π¨ΠΈΡΡΠ° ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΡΡ ΠΏΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΈΠ½ΡΠ΅ΡΠ΅Ρ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΈΡΡ
ΠΎΠ΄Π½ΡΡ
ΠΊΠ°ΠΊ Π΄Π»Ρ ΠΊΠΎΠΌΠ±ΠΈΠ½Π°ΡΠΎΡΠ½ΠΎΠ³ΠΎ ΡΠΈΠ½ΡΠ΅Π·Π° Π±ΠΈΠ±Π»ΠΈΠΎΡΠ΅ΠΊ Π²Π΅ΡΠ΅ΡΡΠ², ΡΠ°ΠΊ ΠΈ Π΄Π»Ρ ΡΠΎΠ·Π΄Π°Π½ΠΈΡ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠΎΠ² Ρ ΠΌΠ΅ΡΠ°Π»Π»Π°ΠΌΠΈ, ΠΈ Π² ΠΏΠΎΡΠ»Π΅Π΄Π½Π΅Π΅ Π²ΡΠ΅ΠΌΡ ΠΈΠ½ΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΡΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ Π² Π΄Π°Π½Π½ΠΎΠΌ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΠΈ ΡΠΎΠ»ΡΠΊΠΎ ΡΠ²Π΅Π»ΠΈΡΠΈΠ²Π°Π΅ΡΡΡ. ΠΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΠΏΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ Ρ ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ Π»ΠΈΠ³Π°Π½Π΄Π°ΠΌΠΈ Π²Π΅ΡΡΠΌΠ° ΡΠΈΡΠΎΠΊΠΈ: ΠΎΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΡΡ
ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠΎΠ² ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠΎΡΠ΅ΡΡΠΎΠ² Π΄ΠΎ ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΡΡ
ΡΠ΅Π½ΡΠΎΡΠΎΠ². Π Ρ
ΠΎΠ΄Π΅ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ ΡΠΎΡΠΌΠΈΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ 5β,6β,7β,8β-ΡΠ΅ΡΡΠ°Π³ΠΈΠ΄ΡΠΎ-1βΠ-ΡΠΏΠΈΡΠΎ[ΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠ°Π½-1,2β-Ρ
ΠΈΠ½Π°Π·ΠΎΠ»ΠΈΠ½]-4β(3βΠ)-ΠΎΠ½Π° Π½Π°ΠΌΠΈ Π±ΡΠ»Π° Π½Π°ΠΉΠ΄Π΅Π½Π° Π½ΠΎΠ²Π°Ρ Π΄ΠΎΠΌΠΈΠ½ΠΎ-ΡΠ΅Π°ΠΊΡΠΈΡ, ΠΊΠΎΡΠΎΡΠ°Ρ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ Π²ΡΠΉΡΠΈ Π½Π° ΡΡΠΈΡΠΈΠΊΠ»ΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π³ΠΈΠ΄ΡΠΈΡΠΎΠ²Π°Π½Π½ΡΠ΅ Π°ΠΊΡΠΈΠ΄ΠΈΠ½ΠΎΠ²ΡΠ΅ ΡΠΈΡΡΠ΅ΠΌΡ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ Π½Π΅ΡΠΌΠΎΡΡΡ Π½Π° ΡΠ½ΠΈΠΆΠ΅Π½Π½ΡΡ ΡΠ»Π΅ΠΊΡΡΠΎΡΠΈΠ»ΡΠ½ΠΎΡΡΡ Π°Π»ΡΠ΄Π΅Π³ΠΈΠ΄Π½ΡΡ
Π³ΡΡΠΏΠΏ Π² 4,5-Π΄ΠΈΡΠΎΡΠΌΠΈΠ»2,3,6,7,8,10-Π³Π΅ΠΊΡΠ°Π³ΠΈΠ΄ΡΠΎΠ°ΠΊΡΠΈΠ΄ΠΈΠ½-8Π°(1Π)-ΠΊΠ°ΡΠ±ΠΎΠ½ΠΈΡΡΠΈΠ»Π΅, ΠΎΠ½ ΡΠ΅Π°Π³ΠΈΡΡΠ΅Ρ Ρ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠΌΠΈ Π°ΠΌΠΈΠ½Π°ΠΌΠΈ Π² Π±Π΅Π½Π·ΠΎΠ»Π΅ Ρ Π°Π·Π΅ΠΎΡΡΠΎΠΏΠ½ΠΎΠΉ ΠΎΡΠ³ΠΎΠ½ΠΊΠΎΠΉ Π²ΠΎΠ΄Ρ Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠ° p-TsOH, Π° ΡΠ°ΠΊΠΆΠ΅ Ρ ΡΠΎΠ»ΡΠ½ΠΎΠΊΠΈΡΠ»ΡΠΌ Π³ΠΈΠ΄ΡΠΎΠΊΡΠΈΠ»Π°ΠΌΠΈΠ½ΠΎΠΌ Π² i-PrOH. ΠΠΎΠ»ΡΡΠ΅Π½Π½ΡΠ΅ ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΡ Π¨ΠΈΡΡΠ° ΠΈ ΠΎΠΊΡΠΈΠΌ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΡΡ ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΡΠΉ ΠΈΠ½ΡΠ΅ΡΠ΅Ρ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ Π»ΠΈΠ³Π°Π½Π΄ΠΎΠ² Π΄Π»Ρ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ Ρ
Π΅Π»Π°ΡΠ½ΡΡ
ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠΎΠ². Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ ΡΠ΅Π°ΠΊΡΠΈΠΈ Π΄ΠΈΠ°Π»ΡΠ΄Π΅Π³ΠΈΠ΄Π° Ρ N2H4ΓH2O Π²ΠΌΠ΅ΡΡΠΎ ΠΎΠΆΠΈΠ΄Π°Π΅ΠΌΠΎΠ³ΠΎ Π³ΠΈΠ΄ΡΠ°Π·ΠΎΠ½Π° ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΎ ΠΌΠ°ΠΊΡΠΎΡΠΈΠΊΠ»ΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠ΅ β ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄Π½ΠΎΠ΅ Π³Π΅ΠΊΡΠ°Π°Π·Π°ΡΠΈΠΊΠ»ΠΎΠΎΠΊΡΠ°Π΄Π΅ΡΠΈΠ½Π°. Π‘ΡΡΠΎΠ΅Π½ΠΈΠ΅ Π²ΡΠ΅Ρ
ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ ΡΠΎΠ³Π»Π°ΡΡΠ΅ΡΡΡ Ρ Π΄Π°Π½Π½ΡΠΌΠΈ Π―ΠΠ 1Π-ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΠΈ, ΠΌΠ°ΡΡ-ΡΠΏΠ΅ΠΊΡΡΠΎΠΌΠ΅ΡΡΠΈΠΈ ΠΈ ΡΠ»Π΅ΠΌΠ΅Π½ΡΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π°. ΠΡΠ΅Π΄Π²Π°ΡΠΈΡΠ΅Π»ΡΠ½ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ, ΡΡΠΎ Π°Π·ΠΎΠΌΠ΅ΡΠΈΠ½Ρ β 4,5-ΡΠ΅Π½ΠΈΠ»(ΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠΈΠ»)ΠΈΠΌΠΈΠ½ΠΎΠΌΠ΅ΡΠΈΠ»-2,3,6,7,8,10-Π³Π΅ΠΊΡΠ°Π³ΠΈΠ΄ΡΠΎΠ°ΠΊΡΠΈΠ΄ΠΈΠ½-8Π°(1Π)ΠΊΠ°ΡΠ±ΠΎΠ½ΠΈΡΡΠΈΠ»Π° ΠΎΠ±ΡΠ°Π·ΡΡΡ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΡΠ΅ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ Ρ ΠΈΠΎΠ½Π°ΠΌΠΈ Π½ΠΈΠΊΠ΅Π»Ρ ΠΈ ΠΌΠ΅Π΄ΠΈ.Β ΠΡΠ½ΠΎΠ²ΠΈ Π¨ΠΈΡΡΠ° ΡΡΠ°Π½ΠΎΠ²Π»ΡΡΡ ΠΏΡΠ°ΠΊΡΠΈΡΠ½ΠΈΠΉ ΡΠ½ΡΠ΅ΡΠ΅Ρ Π² ΡΠΊΠΎΡΡΡ Π²ΠΈΡ
ΡΠ΄Π½ΠΈΡ
ΡΠΊ Π΄Π»Ρ ΠΊΠΎΠΌΠ±ΡΠ½Π°ΡΠΎΡΠ½ΠΎΠ³ΠΎ ΡΠΈΠ½ΡΠ΅Π·Ρ Π±ΡΠ±Π»ΡΠΎΡΠ΅ΠΊ ΡΠ΅ΡΠΎΠ²ΠΈΠ½, ΡΠ°ΠΊ Ρ Π΄Π»Ρ ΡΡΠ²ΠΎΡΠ΅Π½Π½Ρ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΡΠ² Π· ΠΌΠ΅ΡΠ°Π»Π°ΠΌΠΈ, Ρ ΠΎΡΡΠ°Π½Π½ΡΠΌ ΡΠ°ΡΠΎΠΌ ΡΠ½ΡΠ΅Π½ΡΠΈΠ²Π½ΡΡΡΡ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Ρ Ρ Π΄Π°Π½ΠΎΠΌΡ Π½Π°ΠΏΡΡΠΌΠΊΡ ΡΡΠ»ΡΠΊΠΈ Π·Π±ΡΠ»ΡΡΡΡΡΡΡΡ. ΠΠΎΠΆΠ»ΠΈΠ²ΠΎΡΡΡ ΠΏΡΠ°ΠΊΡΠΈΡΠ½ΠΎΠ³ΠΎ Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½Ρ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΡΠ² Π· ΠΎΡΠ³Π°Π½ΡΡΠ½ΠΈΠΌΠΈ Π»ΡΠ³Π°Π½Π΄Π°ΠΌΠΈ Π΄ΠΎΡΠΈΡΡ ΡΠΈΡΠΎΠΊΡ: Π²ΡΠ΄ Π΅ΡΠ΅ΠΊΡΠΈΠ²Π½ΠΈΡ
ΠΊΠ°ΡΠ°Π»ΡΠ·Π°ΡΠΎΡΡΠ² Ρ
ΡΠΌΡΡΠ½ΠΈΡ
ΠΏΡΠΎΡΠ΅ΡΡΠ² Π΄ΠΎ ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΠΈΡ
ΡΠ΅Π½ΡΠΎΡΡΠ². Π£ Ρ
ΠΎΠ΄Ρ Π²ΠΈΠ²ΡΠ΅Π½Π½Ρ ΡΠΎΡΠΌΡΠ»ΡΠ²Π°Π½Π½Ρ 5β,6β,7β,8β-ΡΠ΅ΡΡΠ°Π³ΡΠ΄ΡΠΎ-1βΠ-ΡΠΏΡΡΠΎ[ΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠ°Π½-1,2β-Ρ
ΡΠ½Π°Π·ΠΎΠ»ΡΠ½]-4β(3βΠ)-ΠΎΠ½Ρ Π½Π°ΠΌΠΈ Π±ΡΠ»Π° Π²ΡΠ΄ΠΊΡΠΈΡΠ° Π½ΠΎΠ²Π° Π΄ΠΎΠΌΡΠ½ΠΎ-ΡΠ΅Π°ΠΊΡΡΡ, ΡΠΊΠ° Π΄ΠΎΠ·Π²ΠΎΠ»ΡΡ Π²ΠΈΠΉΡΠΈ Π½Π° ΡΡΠΈΡΠΈΠΊΠ»ΡΡΠ½Ρ Π³ΡΠ΄ΡΠΎΠ²Π°Π½Ρ Π°ΠΊΡΠΈΠ΄ΠΈΠ½ΠΎΠ²Ρ ΡΠΈΡΡΠ΅ΠΌΠΈ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΠΎ Π½Π΅Π·Π²Π°ΠΆΠ°ΡΡΠΈ Π½Π° Π·Π½ΠΈΠΆΠ΅Π½Ρ Π΅Π»Π΅ΠΊΡΡΠΎΡΡΠ»ΡΠ½ΡΡΡΡ Π°Π»ΡΠ΄Π΅Π³ΡΠ΄Π½ΠΈΡ
Π³ΡΡΠΏ Ρ 4,5-Π΄ΠΈΡΠΎΡΠΌΡΠ»-2,3,6,7,8,10-Π³Π΅ΠΊΡΠ°Π³ΡΠ΄ΡΠΎΠ°ΠΊΡΠΈΠ΄ΠΈΠ½Ρ-8Π°(1Π)-ΠΊΠ°ΡΠ±ΠΎΠ½ΡΡΡΠΈΠ»Ρ, Π²ΡΠ½ ΡΠ΅Π°Π³ΡΡ Π· ΡΡΠ·Π½ΠΈΠΌΠΈ Π°ΠΌΡΠ½Π°ΠΌΠΈ Ρ Π±Π΅Π½Π·ΠΎΠ»Ρ Π· Π°Π·Π΅ΠΎΡΡΠΎΠΏΠ½ΠΎΡ Π²ΡΠ΄Π³ΠΎΠ½ΠΊΠΎΡ Π²ΠΎΠ΄ΠΈ Π· Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½ΡΠΌ Π² ΡΠΊΠΎΡΡΡ ΠΊΠ°ΡΠ°Π»ΡΠ·Π°ΡΠΎΡΠ° p-TsOH, Π° ΡΠ°ΠΊΠΎΠΆ Π· ΡΠΎΠ»ΡΠ½ΠΎΠΊΠΈΡΠ»ΠΈΠΌ Π³ΡΠ΄ΡΠΎΠΊΡΠΈΠ»Π°ΠΌΡΠ½ΠΎΠΌ Ρ i-PrOH. ΠΡΡΠΈΠΌΠ°Π½Ρ ΠΎΡΠ½ΠΎΠ²ΠΈ Π¨ΠΈΡΡΠ° ΡΠ° ΠΎΠΊΡΠΈΠΌ ΡΡΠ°Π½ΠΎΠ²Π»ΡΡΡ ΠΏΠΎΡΠ΅Π½ΡΡΠΉΠ½ΠΈΠΉ ΡΠ½ΡΠ΅ΡΠ΅Ρ Ρ ΡΠΊΠΎΡΡΡ Π»ΡΠ³Π°Π½Π΄ΡΠ² Π΄Π»Ρ ΡΡΠ²ΠΎΡΠ΅Π½Π½Ρ Ρ
Π΅Π»Π°ΡΠ½ΠΈΡ
ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΡΠ². Π£ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠ΅Π°ΠΊΡΡΡ Π΄ΡΠ°Π»ΡΠ΄Π΅Π³ΡΠ΄Ρ Π· N2H4ΓH2O Π·Π°ΠΌΡΡΡΡ ΠΎΡΡΠΊΡΠ²Π°Π½ΠΎΠ³ΠΎ Π³ΡΠ΄ΡΠ°Π·ΠΎΠ½Ρ ΠΎΡΡΠΈΠΌΠ°Π½ΠΎ ΠΌΠ°ΠΊΡΠΎΡΠΈΠΊΠ»ΡΡΠ½Ρ ΡΠΏΠΎΠ»ΡΠΊΡ β ΠΏΠΎΡ
ΡΠ΄Π½Ρ Π³Π΅ΠΊΡΠ°Π°Π·Π°ΡΠΈΠΊΠ»ΠΎΠΎΠΊΡΠ°Π΄Π΅ΡΠΈΠ½Ρ. ΠΡΠ΄ΠΎΠ²Π° Π²ΡΡΡ
ΠΎΡΡΠΈΠΌΠ°Π½ΠΈΡ
ΡΠΏΠΎΠ»ΡΠΊ ΠΏΡΠ΄ΡΠ²Π΅ΡΠ΄ΠΆΠ΅Π½Π° Π΄Π°Π½ΠΈΠΌΠΈ Π―ΠΠ 1Π-ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΡΡ, ΠΌΠ°Ρ-ΡΠΏΠ΅ΠΊΡΡΠΎΠΌΠ΅ΡΡΡΡ Ρ Π΅Π»Π΅ΠΌΠ΅Π½ΡΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΡΠ·Ρ. ΠΠΎΠΏΠ΅ΡΠ΅Π΄Π½Ρ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΠΏΡΠΎΠ΄Π΅ΠΌΠΎΠ½ΡΡΡΡΠ²Π°Π»ΠΈ, ΡΠΎ Π°Π·ΠΎΠΌΠ΅ΡΠΈΠ½ΠΈ β 4,5-ΡΠ΅Π½ΡΠ»(ΡΠΈΠΊΠ»ΠΎΠ³Π΅ΠΊΡΠΈΠ»)ΡΠΌΡΠ½ΠΎΠΌΠ΅ΡΠΈΠ»-2, 3,6,7,8,10-Π³Π΅ΠΊΡΠ°Π³ΡΠ΄ΡΠΎΠ°ΠΊΡΠΈΠ΄ΠΈΠ½-8Π°(1Π)-ΠΊΠ°ΡΠ±ΠΎΠ½ΡΡΡΠΈΠ»Ρ ΡΡΠ²ΠΎΡΡΡΡΡ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½Ρ ΡΠΏΠΎΠ»ΡΠΊΠΈ Π· ΡΠΎΠ½Π°ΠΌΠΈ Π½ΡΠΊΠ΅Π»Ρ ΡΠ° ΠΌΡΠ΄Ρ
Classical model of elementary particle with Bertotti-Robinson core and extremal black holes
We discuss the question, whether the Reissner-Nordstr\"{o}m RN) metric can be
glued to another solutions of Einstein-Maxwell equations in such a way that (i)
the singularity at r=0 typical of the RN metric is removed (ii), matching is
smooth. Such a construction could be viewed as a classical model of an
elementary particle balanced by its own forces without support by an external
agent. One choice is the Minkowski interior that goes back to the old Vilenkin
and Fomin's idea who claimed that in this case the bare delta-like stresses at
the horizon vanish if the RN metric is extremal. However, the relevant entity
here is the integral of these stresses over the proper distance which is
infinite in the extremal case. As a result of the competition of these two
factors, the Lanczos tensor does not vanish and the extremal RN cannot be glued
to the Minkowski metric smoothly, so the elementary-particle model as a ball
empty inside fails. We examine the alternative possibility for the extremal RN
metric - gluing to the Bertotti-Robinson (BR) metric. For a surface placed
outside the horizon there always exist bare stresses but their amplitude goes
to zero as the radius of the shell approaches that of the horizon. This limit
realizes the Wheeler idea of "mass without mass" and "charge without charge".
We generalize the model to the extremal Kerr-Newman metric glued to the
rotating analog of the BR metric.Comment: 23 pages. Misprints correcte
3D-4D Interlinkage Of qqq Wave Functions Under 3D Support For Pairwise Bethe-Salpeter Kernels
Using the method of Green's functions within a Bethe-Salpeter framework
characterized by a pairwise qq interaction with a Lorentz-covariant 3D support
to its kernel, the 4D BS wave function for a system of 3 identical relativistic
spinless quarks is reconstructed from the corresponding 3D form which satisfies
a fully connected 3D BSE. This result is a 3-body generalization of a similar
2-body result found earlier under identical conditions of a 3D support to the
corresponding qq-bar BS kernel under Covariant Instaneity (CIA for short). (The
generalization from spinless to fermion quarks is straightforward).
To set the CIA with 3D BS kernel support ansatz in the context of
contemporary approaches to the qqq baryon problem, a model scalar 4D qqq BSE
with pairwise contact interactions to simulate the NJL-Faddeev equations is
worked out fully, and a comparison of both vertex functions shows that the CIA
vertex reduces exactly to the NJL form in the limit of zero spatial range. This
consistency check on the CIA vertex function is part of a fuller accounting for
its mathematical structure whose physical motivation is traceable to the role
of `spectroscopy' as an integral part of the dynamics.Comment: 20 pages, Latex, submitted via the account of K.-C. Yan
- β¦