spindle cell neoplasms are defined as neoplasms that consist of spindle-shaped cells in the histopathology. spindle cell neoplasms can affect the oral cavity. in the oral cavity, the origin of the spindle cell neoplasms may be traced to epithelial, mesenchymal and odontogenic components. this article aims to review the spindle cell neoplasms of the oral cavity with emphasis on histopathology.  ...

We present a theoretical framework, which successfully combines two different fields of photonics: i) the laser rate equations and ii) cavity perturbation theory, focusing particularly on micro-cavity lasers with optical anisotropies. Our approach is formally analogous to quantum-mechanical time-dependent in however gain medium permittivity tensor distribution are perturbed instead Hamiltonian....

Ferritin is a protein nano-cage that encapsulates minerals inside an 8 nm cavity. Previous band gap measurements on the native mineral, ferrihydrite, have reported gaps as low as 1.0 eV and as high as 2.5-3.5 eV. To resolve this discrepancy we have used optical absorption spectroscopy, a well-established technique for measuring both direct and indirect band gaps. Our studies included controls o...

Abstract In this review, we engineer a high-performing nanosensor mechanic based on SPPs, which consists of metal-insulator-metal waveguide coupled with two triangular plates in double-internal-pile ring cavity (DISRC). The feasibility establishing the sensor SPPs is analyzed theoretically, and parameters DISRC are simulated by finite element method. best sensitivity proposed system 2640 nm/RIU...

The topological corner state (TCS) and edge (TES) have created new approaches to manipulate the propagation of light. construction a coupled cavity-waveguide (TCCW) based on TCS TES is worth looking forward to, due its research prospects in realizing high-performance micro-nano integrated photonic devices. In this Letter, TCCW proposed two-dimensional (2D) crystal (PC), which possesses strong o...

A five level atomic medium driving by probe and standing waves control fields having dielectric function $$\epsilon _r$$ permeability $$\mu is placed in a cavity of _1$$ . The permittivity functions are directly related to the reflection transmission spectra medium. provide information about internal structure properties atom. central peak/depth reported spectra, which corresponds nuclear regio...