Results 131 to 140 of about 8,742,018 (356)
FEBS Letters, EarlyView.The protonated form of butyrate, as well as other short‐chain fatty acids (SCFAs), is membrane permeable. In acidic extracellular environments, this can lead to intracellular accumulation of SCFAs and cytosolic acidification. This phenomenon will be particularly relevant in acidic environments such as the large intestine or tumor microenvironments ...
Muwei Jiang +2 more
wiley +1 more source
Polarized double-virtual amplitudes for heavy-quark pair production
Journal of High Energy Physics, 2018 We present the two-loop virtual amplitudes for heavy-quark pair production in light quark-antiquark annihilation and gluon fusion channels, including full spin and color dependence. We use expansions around kinematical limits and numerical integration to
L. Chen, M. Czakon, R. Poncelet
doaj +1 more source
A stepwise emergence of evolution in the RNA world
FEBS Letters, EarlyView.How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley +1 more source
Single top and top pair production [PDF]
, 2012 I present results for single-top and top-pair production at the LHC and the Tevatron. Higher-order two-loop corrections are used to achieve NNLL resummation, which is then used to derive NNLO soft-gluon corrections.
Kidonakis, Nikolaos
core +2 more sources
Top pair production at NNLO [PDF]
Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2018), 2018 We report on progress towards calculating the NNLO cross section for top quark pair production in the the framework which combines the $q_T$-slicing method and small-$q_T$ factorization. In this contribution, we present the complete result for the small-$q_T$ soft function at NNLO, which constitutes the main challenge on the way to our goal.
openaire +2 more sources
FEBS Letters, EarlyView.The enzyme 5‐lipoxygenase (5‐LOX) catalyzes the first step in the biosynthesis of leukotrienes (LTs) involved in inflammatory pathophysiology. After cellular stimulation, 5‐LOX translocates to the nucleus, interacting with the 5‐LOX‐activating protein (FLAP) to form LTA4 from arachidonic acid (AA).
Erik Romp +5 more
wiley +1 more source
, 2005 We have calculated the full one-loop electroweak (EW) and QCD corrections to the third generation scalar-fermion pair production processes $e^+e^- \to \gamma \gamma \to \tilde{f_i}\bar{\tilde{f_i}} (f=t,b,\tau)$ at an electron-positron linear collider(LC)
A. Denner +12 more
core +1 more source
Compton Scattering, Pair Annihilation, and Pair Production in a Plasma [PDF]
Symposium - International Astronomical Union, 2000 The square of the four-momentum of a photon in vacuum is zero. However, in an unmagnetized plasma, it is equal to the square of the plasma frequency. Further, the electron-photon coupling vertex is modified in a plasma to include the effect of the plasma medium.
openaire +3 more sources
Brucella NyxA and NyxB dimerization enhances effector function during infection
FEBS Letters, EarlyView.Brucella abortus thrives inside cells thanks to the translocation of effector proteins that fine‐tune cellular functions. NyxA and NyxB are two effectors that destabilize the nucleolar localization of their host target, SENP3. We show that the Nyx proteins directly interact with each other and that their dimerization is essential for their function ...
Lison Cancade‐Veyre +4 more
wiley +1 more source
Theoretical overview on top pair production and single top production
EPJ Web of Conferences, 2012 In this talk I will give an overview on theoretical aspects of top quark physics. The focus lies on top pair production and single top production.
Weinzierl Stefan
doaj +1 more source