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| http://dx.doi.org/10.1097/GOX.0000000000003947 | DOI Listing |
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Time-resolved coherent Raman spectroscopy (CRS) is a powerful non-linear optical technique for quantitative, in-situ analysis of chemically reacting flows, offering unparalleled accuracy and exceptional spatiotemporal resolution. Its application to large polyatomic molecules, crucial for understanding reaction dynamics, has thus far been limited by the complexity of their rotational-vibrational Raman spectra. Progress in developing comprehensive spectral codes for these molecules, a longstanding goal, has been hindered by prohibitively long computation times required for their spectral synthesis.
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Microkinetic modeling of heterogeneous catalysis serves as an efficient tool bridging atom-scale first-principles calculations and macroscale industrial reactor simulations. Fundamental understanding of the microkinetic mechanism relies on a combination of experimental and theoretical studies. This Perspective presents an overview of the latest progress of experimental and microkinetic modeling approaches applied to gas-solid catalytic kinetics.
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Transcription factors (TFs) recognize specific bases within their DNA-binding motifs, with each base contributing nearly independently to total binding energy. However, the energetic contributions of particular dinucleotides can deviate strongly from the additive approximation, indicating that some TFs can specifically recognize DNA dinucleotides. Here we solved high-resolution (<1 Å) structures of MYF5 and BARHL2 bound to DNAs containing sets of dinucleotides that have different affinities to the proteins.
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Article Synopsis
- The study reveals that laser-assisted dynamic interference in electron spectra can be experimentally observed using attosecond pulse trains, demonstrating fine interference patterns smaller than the energy of individual laser photons.
- Theoretical simulations align with experimental findings, utilizing methods like the time-dependent Schrödinger equation and strong-field approximation to support the results.
- Further analysis emphasizes the significance of phase variations in electron wave packets, showing that the manipulation of electron behavior in the continuum is achievable through advanced multicolor laser techniques controlled at attosecond timescales.
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