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Endomicroscopy is a technique for obtaining histology-like images from inside the human body in real-time, [1] [2] [3] a process known as ‘optical biopsy’. [ 4 ] [ 5 ] It generally refers to fluorescence confocal microscopy , although multi-photon microscopy and optical coherence tomography have also been adapted for endoscopic use.
Like its lighter congener nickel(II) fluoride, PdF 2 adopts a rutile-type crystal structure, [2] [3] containing octahedrally coordinated palladium, which has the electronic configuration t 6 2g e 2 g. This configuration causes PdF 2 to be paramagnetic [4] due to two unpaired electrons, one in each e g-symmetry orbital of palladium.
Right circle points to a divacancy, i.e., sulfur atoms are missing both above and below the Mo layer. Other circles are single vacancies, i.e., sulfur atoms are missing only above or below the Mo layer. Scale bar: 1 nm. [1] In crystallography, a vacancy is a type of point defect in a crystal where an atom is missing from one of the lattice ...
As the atoms of interacting molecules (or of different parts of the same molecule - intramolecular BSSE) [1] [2] approach one another, their basis functions overlap. Each monomer "borrows" functions from other nearby components, effectively increasing its basis set and improving the calculation of derived properties such as energy . [ 3 ]
In computational chemistry, spin contamination is the artificial mixing of different electronic spin-states.This can occur when an approximate orbital-based wave function is represented in an unrestricted form – that is, when the spatial parts of α and β spin-orbitals are permitted to differ.
Pd[PdF 6] is paramagnetic, and both Pd(II) and Pd(IV) occupy octahedral sites in the crystal structure. [2] [3] The Pd II-F distance is 2.17 Å, whereas the Pd IV-F distance is 1.90 Å. [4] Coordination environments of Pd II and Pd IV, showing different distances to F atoms
This is a list of unsolved problems in chemistry. Problems in chemistry are considered unsolved when an expert in the field considers it unsolved or when several experts in the field disagree about a solution to a problem.
[1] This phenomenon produces only a slight difference as volume fraction of water in plasma is sufficiently constant. But, in patients with severe endogenous or exogenous hypertriglyceridemia and in patients with high plasma protein concentration (usually due to paraproteinemia ), water portion of plasma is replaced with either lipid or protein ...