Method for superior denoising of UV/Vis/NIR transmittance spectra of thin films.

UV/Vis/NIR transmittance spectra T(λ) are often used for the characterization of thin films in both spectrophotometry and spectroscopic ellipsometry. T(λ) are inherently noisy due to noise generated by the measuring equipment and the environment. Nevertheless, film characterizations are usually performed either without denoising T(λ) or by smoothing it, which should limit the characterization accuracy.

An immuno-epidemiological model with waning immunity after infection or vaccination.

In epidemics, waning immunity is common after infection or vaccination of individuals. Immunity levels are highly heterogeneous and dynamic. This work presents an immuno-epidemiological model that captures the fundamental dynamic features of immunity acquisition and wane after infection or vaccination and analyzes mathematically its dynamical properties.

Polycarbonate-Based Copolymer Micelles as Biodegradable Carriers of Anticancer Podophyllotoxin or Juniper Extracts.

Podophyllotoxin (PPT) is used in the industrial production of efficient anticancer, antiviral and other drugs. or are natural sources of PPT, but at present they are considered as endangered species. Their PPT content is variable, depending on the growing conditions.

Increasing the Accuracy of the Characterization of a Thin Semiconductor or Dielectric Film on a Substrate from Only One Quasi-Normal Incidence UV/Vis/NIR Reflectance Spectrum of the Sample.

OEMT is an existing optimizing envelope method for thin-film characterization that uses only one transmittance spectrum, (), of the film deposited on the substrate. OEMT computes the optimized values of the average thickness, d¯, and the thickness non-uniformity, Δd, employing variables for the external smoothing of (), the slit width correction, and the optimized wavelength intervals for the computation of d¯ and Δd, and taking into account both the finite size and absorption of the substrate. Our group had achieved record low relative errors, <0.

Anticancer Podophyllotoxin Recovery from Juniper Leaves at Atmospheric and High Pressure Using Eco-Friendly Solvents.

Podophyllotoxin (PPT) is a precursor for the synthesis of drugs against cancer and other diseases. The present sources of PPT ( and ) are endangered species, with PPT production highly dependent on their growing conditions. In connection with the identification of new sources of PPT, the present study aimed to recover PPT from leaves via atmospheric or high pressure extraction methods with a focus on using eco-friendly solvents.