The profile differences of zinc, copper, and nickel contents in forest podzolic soils on South-Podlasie Lowland wen: studied. Their considerable differentiation was found. Contents and differentiation of analyzed heavy metals in studied soil horizons were determined by: parents rock and soil-forming processes (mainly podzolization) characteristic for those soils.

A practical method with high accuracy in generation and application of error values for calibration of current transformer test sets is described. A PC-controlled three-phase power source with a standard wattmeter is used for generating the nominal and error test currents while an electronically compensated current comparator is used to provide summation and subtraction of them, precisely. With this method, any ratio error and phase displacement values could be generated automatically and nominal and test currents could be grounded on the test set safely. Because of its high accurate ratio and phase error generating capability, any type of test set regardless of its operating principles could be calibrated.

Professor Ida Kurcz passed away on January 25, 2024. Polish academia has lost an exceptional scholar who was an unquestioned authority around the world. It was she who introduced psycholinguistics into the bloodstream of Polish psychology and set the tone for its development. She was hailed as the First Lady of psycholinguistics in Poland for a reason. The present text examines her biography together with her research, teaching and organizational achievements.

The authors criticize the claims relating to the functioning of the National Committee on Ethical Review of Animal Research made in the paper „Five years of difficult experiences with the Act of the protection of animals used for scientific or educational purposes dated of January 15, 2015” published in „Nauka” (3/2020) relating to the functioning of the National Ethics Committee on Animal Experimentation. The comment proves many statements of that paper blatantly false given either statistical data or legal regulations. It includes the duties of the National Ethics Committee, right of non-governmental organizations to participate in administrative proceedings, conflict of interest, and the approach of the National Ethics Committee to appeals from the decisions made by local committees. The authors prove that the paper’s suggestions of the alleged misconduct by the National Ethics Committee on Animal Experimentation are ill-founded and result from the poorly understood legal situation as well as lack of reference to relevant empirical data.