Results 131 to 140 of about 9,099,574 (279)
Angewandte Chemie, EarlyView.A metal‐free photocatalytic platform converts nitrones into 4‐isoxazolines and oxa–aza–bicycloheptanes through divergent [3+2π/σ] cycloadditions. Assembly‐controlled kinetic electron transfer gating dictates substrate activation, enabling selective reactivity beyond thermodynamic expectations.
Nayan Saha +6 more
wiley +2 more sources
Projective planes and dihedral groups
Discrete Mathematics, 1997 Let \(q\) be a prime power and \(P\) the projective plane of order \(q^2\), \(B_0\), \(B_1\) two disjoint Baer subplanes of \(P\), \(\tau_0\), \(\tau_1\) the corresponding Baer involutions, \(\delta =\tau_0 \tau_1\). The author's main result is the following (a) \(\delta\) is a fixed point free projective collineation whose order \(r\) divides \(q^2- q+
openaire +3 more sources
Advanced Intelligent Discovery, EarlyView.An ultra‐fast small‐sample AI consensus pipeline combines co‐folding and docking to target structure‐lacking p53 monomers. Its optimal mini‐protein binder shows robust interfacial affinity and promising druggability, supplying unprecedented antitumor p53 templates.
Ningyao Li +9 more
wiley +1 more source
A Mesoionic Platform for Persistent Anionic Nitrogen‐Centered Radicals
Angewandte Chemie, EarlyView.Charge did not meet spin: Mesoionic 1,2,3‐triazines undergo reversible one‐electron reduction to persistent anionic nitrogen‐centered radicals. Electron paramagnetic resonance, single‐crystal x‐ray diffraction, and calculations reveal nitrogen‐localized spin and structural reorganization, while crystalline salts show clean redox cycling.
Deepak Ranolia +8 more
wiley +2 more sources
A description of the two-dimensional representations of the dihedral group over the commutative local rings (in Ukrainian) [PDF]
Математичні Студії, 2012 The full description of the two-dimensional representations ofthe dihedral group $D_{m} =leftlangle a,b{m ; }left|a^{m} =1, b^{2} =1, bab^{-1} =a^{-1} ight.
Yu. V. Petechuk
doaj
On Schur Rings Over a Semi Dihedral Group [PDF]
In this paper, we shall show that the only primitive Schur ring over a semi dihedral group is the trivial one and every semi dihedral subgroup is Burnside group, that is a primitive group containing a regular subgroup isomorphic to the semi dihedral ...
Yu, Hao
core +1 more source
Sequencing certain dihedral groups
Discrete Mathematics, 1990 A sequencing of a finite group is an ordering of its elements such that the partial products of its nonempty initial segments exhaust all group elements (without repetition). It is shown that at least three-fourths of the dihedral groups are sequenceable.
openaire +2 more sources
Backbone Steric Constraints Underlie High Passive Membrane Permeability of N‐Alkyl Peptides
Angewandte Chemie, EarlyView.Beyond amide hydrogen removal, steric constraints encoded in N/Cα‐dually substituted backbones are uncovered as a key determinant of passive membrane permeability in N‐alkyl peptides. These constraints restrict conformational freedom and sterically limit backbone hydration during membrane permeation.
Ayumi Inayoshi +8 more
wiley +2 more sources
Study of Cayley Digraphs over Polygroups
MathematicsIn this paper we introduce Cayley digraphs associated to finitely generated polygroups, where the vertices correspond to finite products of the generators of polygroups and the edges to multiplication by vertices and generators.
Ali Sanjabi +4 more
doaj +1 more source
Angewandte Chemie, EarlyView.Modifying the conformational ensemble of “molten‐globule” protein by the site‐specific incorporation of stereoisomeric 4‐fluoroproline residues modulated its binding affinity and aggregation behavior. 19F NMR spectroscopy enabled the detection of key interactions responsible for structural and dynamic changes. ABSTRACT Recently, the application of deep
Abir Ben Bouzayene +5 more
wiley +2 more sources