THE EFFECT OF USING LIGHT EMITTING DIODES AND FLUORESCENT LAMPS AS DIFFERENT LIGHT SOURCES IN GROWTH INHIBITION TESTS OF GREEN ALGA, DIATOM, AND CYANOBACTERIA.

Aquatic organisms have been used to investigate the safety of chemicals worldwide.One such assessment is an algal growth inhibition test.Algal growth inhibition tests are commonly performed using a growth chamber with fluorescent lamps as here the lighting source, as test guidelines require continuous uniform fluorescent illumination.However, fluor

Frictional resistance comprises more than 60% of the total resistance for most merchant ships.Active and passive devices have been used telemarkskongen flue to reduce frictional resistance, but the most effective and practical device is an air lubrication system.Such systems have been applied in several ships, and their effects have been verified i

This work presents the results of an analysis of concentration levels of selected trace metals (Pb, Zn, Cu, Cd) in plants and soil near the main roads of the Warsaw agglomeration.The aim of the study was to assess the degree of contamination by click here selected trace elements of plants growing at different distances from the road (directly at th

The study aimed to evaluate a methodology to quantify the porosity of the soil using computed tomography in areas under no-tillage, conventional tillage and native forest.Three soil management systems were selected for the study: forest, conventional tillage and no-tillage.In each soil management system, undisturbed soil samples were collected in t

Once the Schengen Agreement came into force, there was a need to adopt a framework of common rules which would regulate some asylum-related issues in the newly-created Schengen area without internal borders.The first step in that course was made in 1990 by adoption of the Convention Determining the State Responsible for Examining Applications for A