Results 51 to 60 of about 4,801,270 (329)
FEBS Letters, EarlyView.Phototrophs evolved light‐harvesting systems adapted for efficient photon capture in habitats enriched in far‐red radiation. A subset of eukaryotic pigment‐binding proteins can absorb far‐red photons via low‐energy chlorophyll states known as red forms.
Antonello Amelii +8 more
wiley +1 more source
FEBS Letters, EarlyView.Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang +5 more
wiley +1 more source
Shape and fluctuations of frustrated self-assembled nano ribbons
Nature Communications, 2019 Supramolecular assemblies achieve nontrivial structures but there is no general framework to link their formation to molecular properties. Here the authors propose a model that relates molecular geometry and interactions to nanoribbon formation ...
Mingming Zhang +3 more
doaj +1 more source
Some aspects of topology and kinematics of a 3DOF translational parallel mechanism
International Journal of Applied Mechanics and Engineering, 2014 The paper presents elements of the topology, geometry and the kinematic analysis of a translational parallel mechanism with three degrees of freedom.
J. Bałchanowski
doaj +1 more source
Effect of Insert Angles on Cutting Tool Geometry [PDF]
Журнал інженерних наук, 2020 An analysis of publications has shown that mechanically clamped indexable inserts are predominantly used in modern tool manufacturing. Each insert has its shape and geometry in the tool coordinate system. The static system’s required geometry is achieved
Shvets S. V., Astakhov V. P.
doaj +1 more source
A link invariant from the symplectic geometry of nilpotent slices [PDF]
, 2004 We define an invariant of oriented links in S 3 using the symplectic geometry of certain spaces which arise naturally in Lie theory. More specifically, we present a knot as the closure of a braid, which in turn we view as a loop in configuration space ...
P. Seidel, I. Smith
semanticscholar +1 more source
The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity
FEBS Letters, EarlyView.The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley +1 more source
Bis(tribenzylammonium) tetrachloridoaurate(III) chloride
Acta Crystallographica Section E, 2010 In the title compound, (C21H22N)2[AuCl4]Cl, the AuIII atom adopts a square-planar coordination geometry defined by four chloride ions. In the crystal structure, intermolecular N—H...Cl hydrogen bonds link the organic cations and the ...
Yousef Fazaeli +3 more
doaj +1 more source
Selection of a common communication link geometry for Saturn, Uranus and Titan [PDF]
, 1974 Mission analysis link parametrics, considering a Pioneer baseline, are developed through launch energies, flyby radii, and trip time calculations. Projected is also a 1979 Jupiter Uranus opportunity for a derivative Mariner to fly to Uranus by using the ...
Hendricks, T.
core +1 more source
Geometrical enhancement of the electric field: Application of fractional calculus in nanoplasmonics
, 2011 We developed an analytical approach, for a wave propagation in metal-dielectric nanostructures in the quasi-static limit. This consideration establishes a link between fractional geometry of the nanostructure and fractional integro-differentiation.
Baskin, E., Iomin, A.
core +1 more source