Results 241 to 250 of about 32,973 (309)
Abstract In light of the centennial of the Schrödinger equation, this article addresses the popular idea that quantum mechanical effects play an important role in biological systems. We start by defining what is qualified as a quantum effect. We then clarify the idea that quantum mechanical tunneling is a crucial factor in enzyme catalysis.
Aoxuan Zhang, Arieh Warshel
wiley +1 more source
Fendioxypyracil, a new and systemic PPO‐inhibiting herbicide for X‐spectrum weed control
This graphical abstract presents the discovery and synthesis of PPO herbicide structures with a central pyridine core, showing molecular conformations, dose–response inhibition curves for PPO1 and PPO2, and comparative weed and grass control efficacy of fendioxypyracil versus other herbicides in greenhouse and field trials.
Tobias Seiser +8 more
wiley +1 more source
A Complex Tension Origin for Dilaton Gravity: Jordan Stiffness and Logarithmic Einstein Dynamics. [PDF]
Vaillant M, Scott TC.
europepmc +1 more source
“That We May Love the As Yet Unknown God”: The Meaning of Analogy in Augustine’s De Trinitate
Abstract Recent interest in the idea of analogy and the analogy of being, along with the apparent invocation of Augustine’s De Trinitate in the definition of Lateran IV, calls for a renewed investigation into the idea of analogy in the aforementioned text. Methodologically, “analogy” in De Trin. names a form of discourse which attempts to see the truth
Samuel J. Korb
wiley +1 more source
ABSTRACT Protoberberine alkaloids are a characteristic group of natural products in Coptis plants known for their notable pharmacological activities. However, the structural similarity and the substrate promiscuity of their biosynthetic enzymes have left the precise synthetic pathways remain unclarified, posing challenges to regulate product formation.
Jun Song +14 more
wiley +1 more source
Four isostructural complexes (C1–C4) derived from 2‐(tert‐butoxy)‐6‐(1H‐imidazol‐1‐yl)pyridine with axial halides exhibit octahedral trans M(L)4X2 geometries, confirmed by X‐ray diffraction. They feature a discrete 1,6M7−1 topology, identified using ToposPro analysis.
David Ezenarro‐Salcedo +10 more
wiley +1 more source
Abstract We present the first in situ observations of the full turbulence tensor of free convection under lake ice, obtained using an original method based on a set of two synchronized acoustic Doppler profilers to measure all six turbulent stress components.
G. B. Kirillin +2 more
wiley +1 more source
Minimum Spacetime Length and the Thermodynamics of Spacetime. [PDF]
Rossi V, Cacciatori SL, Pesci A.
europepmc +1 more source
Sodium Tetraazidoaurate(III)—From Na[AuCl4]·2H2O to Na[Au(N3)4] and Beyond One Step at a Time
Novel sodium chlorido‐/azidoaurate(III) dihydrates Na[AuCl4–x(N3)x]·2H2O (x = 0, 1, 2, 3, 4) provide the first example of a complete series of gradual substitution on tetramer complex anions to be described. Controlled dehydration of Na[Au(N3)4]·2H2O leads to Na[Au(N3)4]·H2O and Na[Au(N3)4], the latter being a highly explosive material.
Mehmet Somer +10 more
wiley +1 more source

