Results 91 to 100 of about 25,604,119 (393)
Lyalpha heating and its impact on early structure formation
, 2007 In this paper we have calculated the effect of Lyalpha photons emitted by the first stars on the evolution of the IGM temperature. We have considered both a standard Salpeter IMF and a delta-function IMF for very massive stars with mass 300 M_sun.
Allison +32 more
core +1 more source
Impact of global structure on diffusive exploration of organelle networks [PDF]
, 2020 We investigate diffusive search on planar networks, motivated by tubular organelle networks in cell biology that contain molecules searching for reaction partners and binding sites.
Brown, Aidan I +2 more
core +1 more source
Impact parameter dependence of parton densities at low x [PDF]
, 2000 We consider impact parameter dependence of the polarized and unpolarized parton densities. Unitarity does not allow factorization of these structure functions over the Bjorken x and the impact parameter b variables.
Bjorken +11 more
core +5 more sources
Knottin cyclization: impact on structure and dynamics [PDF]
BMC Structural Biology, 2008 Abstract Background Present in various species, the knottins (also referred to as inhibitor cystine knots) constitute a group of extremely stable miniproteins with a plethora of biological activities. Owing to their small size and their high stability, knottins are considered as excellent leads or scaffolds in drug ...
Laurent Chiche +11 more
openaire +4 more sources
Autophagy in cancer and protein conformational disorders
FEBS Letters, EarlyView.Autophagy plays a crucial role in numerous biological processes, including protein and organelle quality control, development, immunity, and metabolism. Hence, dysregulation or mutations in autophagy‐related genes have been implicated in a wide range of human diseases.
Sergio Attanasio
wiley +1 more source
Underground Space, 2022 The dynamic mechanical properties and dynamic energy absorption capacity of marine sandy clay, which was stabilized by cement with partial substitution of alkali-activated metakaolin (AAMK) and discrete polypropylene fibers, were experimentally ...
Ruiqiu Ma +3 more
doaj
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
Numerical study on impact resistance of novel multilevel bionic thin-walled structures
Journal of Materials Research and Technology, 2022 Inspired by impact-resistant hedgehog spine and beetle's forewing, the thin-walled structures of simple hedgehog spine and multilevel hedgehog spine were designed.
Zhiquan Wei, Xianghong Xu
doaj
Multiscale Geoelectrical Properties of the Rochechouart Impact Structure, France
Geochemistry, Geophysics, Geosystems, 2021 The 205 Ma Rochechouart impact structure (France) is characterized by various impactite formations overlying the Hercynian crystalline basement. New constraints from downhole logging and surface electrical resistivity measurements along >100 m long ...
Yoann Quesnel +6 more
doaj +1 more source
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