107 research outputs found
Two-loop matching of renormalizable operators: general considerations and applications
Low-energy effective field theories (EFT) encode information about the
physics at high energies--i.e., the high-energy theory (HET). To extract this
information the EFT and the HET have to be matched to each other. At the
one-loop level, general results for the matching of renormalizable operators
have already been obtained in the literature. In the present paper, we take a
step towards a better understanding of renormalizable operator matching at the
two-loop level: Focusing on the diagrammatic method, we discuss in detail the
various contributions to two-loop matching conditions and compare different
approaches to derive them. Moreover, we discuss which observables are best
suited for the derivation of matching conditions. As a concrete application, we
calculate the and matching conditions of the scalar four-point
couplings between the Standard Model (SM) and the Two-Higgs-Doublet Model
(THDM) as well as the THDM and the Minimal Supersymmetric Standard Model
(MSSM). We use the derived formulas to improve the prediction of the SM-like
Higgs mass in the MSSM using the THDM as EFT.Comment: 42 pages, 4 figures, 4 ancillary files; matches version published in
JHE
H2O MegaMasers: a RadioAstron success story
The RadioAstron space-VLBI mission has successfully detected extragalactic
H2O MegaMaser emission regions at very long Earth to space baselines ranging
between 1.4 and 26.7 Earth Diameters (ED). The preliminary results for two
galaxies, NGC3079 and NGC4258, at baselines longer than one ED indicate
masering environments and excitation conditions in these galaxies that are
distinctly different. Further observations of NGC4258 at longer baselines will
reveal more of the physics of individual emission regions.Comment: To be published in Astrophysical Masers: Unlocking the Mysteries of
the Universe, IAU Symposium 336, 201
n-Hexane Bromination Using Barium Fluorobromate Ba(BrF[4])[2]
It was observed that Ba(BrF[4])[2] demonstrates a high reactivity towards n-hexane. It was found that the heating the reaction mass proceed with intensive self-heating up to 40 Β°C and release of elemental bromine. The GC-MS analysis showed that the main product of Ba(BrF[4])[2] interaction with n-hexane is 3-bromohexane. The optimal interaction parameters were found. The heat effect of the reaction was determined by isothermal calorimetric method, it was β1451 kJ/mole. The qualitative composition of solid precipitate was determined by EDXRF and XRD analyses. BaF[2] is formed as only solid product of the reaction between Ba(BrF[4])[2] and n-hexane. It was found that conditions of researched reaction are quite unusual for known free-radical hydrogen substitution processes in case of alkanes. Also we can conclude that Ba(BrF[4])[2] is much more soft reagent is case of interaction with alkanes in comparison with BrF[3] and it can provide more or less selective bromination of alkane unlikely to BrF[3]
Experimental evaluation of the high performance vector controlled doubly-fed induction machine with matrix converter
ΠΠΈΠΊΠΎΠ½Π°Π½ΠΎ Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½Ρ Π²ΠΈΠΏΡΠΎΠ±ΡΠ²Π°Π½Π½Ρ ΠΌΠ°ΡΠΈΠ½ΠΈ ΠΏΠΎΠ΄Π²ΡΠΉΠ½ΠΎΠ³ΠΎ ΠΆΠΈΠ²Π»Π΅Π½Π½Ρ (ΠΠΠ) Π· ΠΊΠ΅ΡΡΠ²Π°Π½Π½ΡΠΌ Π²ΡΠ΄ 6 ΠΊΠΠ ΠΌΠ°ΡΡΠΈΡΠ½ΠΎΠ³ΠΎ ΠΏΠ΅ΡΠ΅ΡΠ²ΠΎΡΡΠ²Π°ΡΠ° (ΠΠ). ΠΡΡ Π°Π»Π³ΠΎΡΠΈΡΠΌΠΈ ΠΊΠ΅ΡΡΠ²Π°Π½Π½Ρ Π΄Π»Ρ ΠΠ Ρ ΠΠΠ Π²ΠΈΠΊΠΎΠ½ΡΠ²Π°Π»ΠΈΡΡ Π² ΡΠ΅Π°Π»ΡΠ½ΠΎΠΌΡ ΡΠ°ΡΡ, Π²ΠΈΠΊΠΎΡΠΈΡΡΠΎΠ²ΡΡΡΠΈ ΠΊΠΎΠ½ΡΡΠΎΠ»Π΅Ρ DSP, Ρ ΡΡΠΏΡΡΠ½ΠΎ Π²ΠΈΠΏΡΠΎΠ±ΡΠ²Π°Π½Ρ Π½Π° Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠΌΡ ΡΡΠ΅Π½Π΄Ρ. ΠΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎ ΠΏΡΠΎΠ΄Π΅ΠΌΠΎΠ½ΡΡΡΠΎΠ²Π°Π½ΠΎ, ΡΠΎ Π°Π»Π³ΠΎΡΠΈΡΠΌΠΈ ΠΊΠ΅ΡΡΠ²Π°Π½Π½Ρ ΠΠ Ρ ΠΠΠ Π³Π°ΡΠ°Π½ΡΡΡΡΡ ΡΠΎΡΠ½Π΅ ΡΠ»ΡΠ΄ΠΊΡΠ²Π°Π½Π½Ρ Π·Π° ΠΌΠΎΠΌΠ΅Π½ΡΠΎΠΌ ΠΏΠΎΠ·ΠΈΡΠΈΠ²Π½ΠΎΡ Ρ Π½Π΅Π³Π°ΡΠΈΠ²Π½ΠΎΡ ΡΡΠ°ΡΠΊΡΠΎΡΡΠΉ Π·Π°Π΄Π°Π½ΠΎΠ³ΠΎ ΠΌΠΎΠΌΠ΅Π½ΡΡ Π·Π° ΡΠΌΠΎΠ²ΠΈ ΠΎΠ΄ΠΈΠ½ΠΈΡΠ½ΠΎΠ³ΠΎ ΠΊΠΎΠ΅ΡΡΡΡΡΠ½ΡΡ ΠΏΠΎΡΡΠΆΠ½ΠΎΡΡΡ ΡΡΠ°ΡΠΎΡΠ½ΠΎΡ Π»Π°Π½ΠΊΠΈ. ΠΠΎΡΡΠ³Π½Π΅Π½ΠΎ Π·Π°Π΄ΠΎΠ²ΡΠ»ΡΠ½ΠΈΡ
ΡΠΎΡΠΌ ΠΊΡΠΈΠ²ΠΈΡ
ΡΡΡΡΠΌΡΠ² Π² Π»Π°Π½ΡΡ ΠΠΠ Ρ Π² Π»Π°Π½ΡΡ ΠΠ
n-Hexane Bromination Using Barium Fluorobromate Ba(BrF[4])[2]
It was observed that Ba(BrF[4])[2] demonstrates a high reactivity towards n-hexane. It was found that the heating the reaction mass proceed with intensive self-heating up to 40 Β°C and release of elemental bromine. The GC-MS analysis showed that the main product of Ba(BrF[4])[2] interaction with n-hexane is 3-bromohexane. The optimal interaction parameters were found. The heat effect of the reaction was determined by isothermal calorimetric method, it was β1451 kJ/mole. The qualitative composition of solid precipitate was determined by EDXRF and XRD analyses. BaF[2] is formed as only solid product of the reaction between Ba(BrF[4])[2] and n-hexane. It was found that conditions of researched reaction are quite unusual for known free-radical hydrogen substitution processes in case of alkanes. Also we can conclude that Ba(BrF[4])[2] is much more soft reagent is case of interaction with alkanes in comparison with BrF[3] and it can provide more or less selective bromination of alkane unlikely to BrF[3]
Π’ΠΈΡΠ΅ΠΎΠΈΠ΄Π½ΡΠΉ ΡΡΠ°ΡΡΡ ΠΊΠ°ΠΊ ΠΏΡΠΎΠ³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΌΠ°ΡΠΊΠ΅Ρ Π² ΠΎΠ½ΠΊΠΎΠ»ΠΎΠ³ΠΈΠΈ
Acting via a cell surface receptor on integrin v 3, thyroid hormone is pro-angiogenic and pro-proliferating. Nongenomic mechanisms of actions of the thyroid hormones at v 3 include modulation of activities of intracellular messengers: mitogen-activated protein kinase and phosphatidyl inositol-3-kinase. Thyroid hormone may increase activity of factors that support neovascularization, cell motility and cell proliferation. There are clinical and epidemiological dates about impact induced hypothyroidism on the disease and survival in cancer patients in this reviewΠ ΠΎΠ±Π·ΠΎΡΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ Π΄Π°Π½Π½ΡΠ΅ ΠΎ Π½Π΅Π³Π΅Π½ΠΎΠΌΠ½ΡΡ
ΡΠ²ΠΎΠΉΡΡΠ²Π°Ρ
ΡΠΈΡΠ΅ΠΎΠΈΠ΄Π½ΡΡ
Π³ΠΎΡΠΌΠΎΠ½ΠΎΠ² (Π’Π), Π½Π°ΡΠ°Π»ΠΎ ΠΊΠΎΡΠΎΡΡΠΌ Π΄Π°ΡΡ Π²Π½Π΅ΠΊΠ»Π΅ΡΠΎΡΠ½ΡΠ΅ Π΄ΠΎΠΌΠ΅Π½Ρ Π±Π΅Π»ΠΊΠ° ΠΊΠ»Π΅ΡΠΎΡΠ½ΠΎΠΉ Π°Π΄Π³Π΅Π·ΠΈΠΈ β ΠΈΠ½ΡΠ΅Π³ΡΠΈΠ½Π° V 3, Π² ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ ΡΠ΅Π³ΠΎ ΠΏΡΠΎΠΈΡΡ
ΠΎΠ΄ΠΈΡ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΡ ΠΌΠΈΡΠΎΠ³Π΅Π½-Π°ΠΊΡΠΈΠ²ΠΈΡΡΠ΅ΠΌΠΎΠΉ ΠΏΡΠΎΡΠ΅ΠΈΠ½-ΠΊΠΈΠ½Π°Π·Ρ, ΡΠΎΡΡΠΎΡΠΈΠ΄ΠΈΠ»-ΠΈΠ½ΠΎΠ·ΠΈΡΠΎΠ»-3-ΠΊΠΈΠ½Π°Π·Ρ. ΠΠΎΠ½Π΅ΡΠ½ΡΠΌΠΈ ΡΡΡΠ΅ΠΊΡΠ°ΠΌΠΈ Π½Π΅Π³Π΅Π½ΠΎΠΌΠ½ΠΎΠ³ΠΎ Π΄Π΅ΠΉΡΡΠ²ΠΈΡ ΡΠ²Π»ΡΡΡΡΡ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΡ ΠΊΠ»Π΅ΡΠΎΡΠ½ΠΎΠΉ ΠΏΡΠΎΠ»ΠΈΡΠ΅ΡΠ°ΡΠΈΠΈ, Π°Π½Π³ΠΈΠΎΠ³Π΅Π½Π΅Π·Π° ΠΈ ΠΌΠΈΠ³ΡΠ°ΡΠΈΠΈ ΠΊΠ»Π΅ΡΠΎΠΊ, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ ΡΠΊΡΠΏΡΠ΅ΡΡΠΈΠΈ ΡΠΊΠ°Π½Π΅ΡΠΏΠ΅ΡΠΈΡΠΈΡΠ½ΡΡ
Π³Π΅Π½ΠΎΠ² Π²ΠΎΡΠΏΠ°Π»Π΅Π½ΠΈΡ. Π’Π°ΠΊΠΆΠ΅ ΠΏΡΠΈΠ²Π΅Π΄Π΅Π½Ρ Π΄Π°Π½Π½ΡΠ΅ Π²Π»ΠΈΡΠ½ΠΈΡ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ, Π² ΠΊΠΎΡΠΎΡΡΡ
ΠΏΡΠΎΡΠ»Π΅ΠΆΠ΅Π½ΠΎ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ ΠΎΡΠ²Π΅ΡΠ° Π½Π° Π»Π΅ΡΠ΅Π½ΠΈΠ΅ ΠΈ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ Π²ΡΠΆΠΈΠ²Π°Π΅ΠΌΠΎΡΡΠΈ Ρ ΠΎΠ½ΠΊΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
Π±ΠΎΠ»ΡΠ½ΡΡ
Ρ ΠΈΠ½Π΄ΡΡΠΈΡΠΎΠ²Π°Π½Π½ΡΠΌ Π³ΠΈΠΏΠΎΡΠΈΡΠ΅ΠΎΠ·ΠΎΠΌ
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