A country-wide teledermatoscopy service in Estonia shows results comparable to those in experimental settings in management plan development and diagnostic accuracy: A retrospective database study.

Background: Teledermatoscopy accuracy has been examined in experimental settings and is recommended for primary care despite lacking real-world implementation evidence. A teledermatoscopy service has been provided in Estonia since 2013, where lesions are evaluated based on the patient's or general practitioner's suggestion.

Objective: The management plan and diagnostic accuracy of a real-world store-and-forward teledermatoscopy service for melanoma diagnosis were evaluated.

An evaluation of e-prescribing at a national level.

Objective: The aim of the article is to describe the process of implementing the Estonian national second generation electronic prescription service (e-prescription) and determine if the objectives set by the Estonian government were fulfilled.

Materials And Methods: The study presents an analysis of both retrospective and current data in the evaluation phase of a design research project. Sources include, among others, publicly available documents and previous evaluation studies.

Fixation of nitrogen with cavitation.

The sonochemical fixation of nitrogen to ammonia was investigated by sonolysis of liquids with nitrogen/hydrogen gas mixtures passing through them. The maximum rate (4 nmol min-1 W-1) was found in water irradiated with 900 kHz ultrasound with gas of a mole fraction 0.6 of nitrogen and the lowest temperature (278 K).

Assessment of polycrystalline graphites as sorbents for solid-phase microextraction of nonionic surfactants.

Two polycrystalline graphites (pencil lead and glassy carbon) were used as sorbents for solid-phase microextraction of a nonionic alkylphenol ethoxylate surfactant (Triton X-100). Analyses were performed by reversed-phase HPLC-fluorescence detection. The presence of the benzene ring in the congeners of Triton X-100 also allowed their direct detection at lambda(ex) = 230 nm and lambda(em) = 310 nm.

Sonochemical formation of nitrate and nitrite in water.

The formation of nitrite and nitrate ions in water under irradiation with 900 kHz ultrasound was studied as a function of time, temperature and gas (oxygen/nitrogen) composition. The rate decreases as temperature increases, and is below the detection limit when there is no O2 gas present. The absolute rate of formation of NOx- ions obtained (about 30 x 10(-9) mol min-1 W-1) agrees well with previous similar studies.