I took part in in "The 6th Workshop on the Physics of Diluted Magnetic Semiconductors" in Obory, Poland (January 13 2001), entitled: "Optical absorption in random media - GaMnAs".

I delivered a lecture for secondary schools entitled "From the galena crystal radioreceivers to the computers", December 16, 2000

I was invited to participate in the Polish Radio BIS programme "The word after next 50 years – physics" (14.11.2000). I've also give the interview for Polish Radio One (PR1) in the programme "The Evening with Radio One" (16.11.2000) as the laureate of the Domestic Fellowship for Young Scholars awarded by the Foundation for Polish Science.

I delivered two lectures during IV Science Festival in Warsaw, September 15-24, 2000 entitled "How does the computer work – Solid State Physics at the and of the century (part I and II)"

I took part in XXVIII International School of Semiconducting Compounds - Jaszowiec 2000, June 2000, where I was the first author of the presentation: "The EPR of Mn impurity in In_1-xMn_xAs epilayers"

I took part in "The 5th Workshop on the Physics of Diluted Magnetic Semiconductors" in Obory, Poland (22 January 2000), where I presented the paper “The nature of manganese in InMnAs”

I took part in "The 9th International Conference on Narrow Gap Semiconductors" in Berlin (26.09.- 01.10.1999), where I was the first author of the presentation: "The nature of Mn impurity in InMnAs epilayers"

I took part in “The 28th International School of Semiconducting Compounds”, Jaszowiec, Poland (June 1999), where I was the first author of two papers:

1. "Antiferromagnetic p-d exchange in ferromagnetic Ga_1-xMn_xAs epilayers";
1. "The EPR of Mn impurity in Ga_1-xMn_xAs epilayers".

I gave a Solid State Physics Seminar at Warsaw University "GaMnAs – a new material in Diluted Magnetic Semiconductor Physics" (26 March '99)

I took part in "The 4th Workshop on the Physics of Diluted Magnetic Semiconductors" in Obory, Poland (16 January '99), where I made two presentations:

1. The nature of manganese in GaMnAs;
1. Antiferromagnetic p-d exchange in GaMnAs epilayers.

I took part in “The 27th International School of Semiconducting Compounds”, Jaszowiec, Poland, (June '98), where I was the first author of the following two papers:

1. "The nature of Mn impurity and s,p-d exchange interaction in GaMnAs";
1. "Magnetic and transport properties of GaSb heavily doped with Mn".

I delivered a Solid State Physics Seminar at The Institute of Physics of The Polish Academy of Science "Ferromagnetic GaMnAs" (10 March '98)

I took part in "The 3rd Workshop on the Physics of Diluted Magnetic Semiconductors" in Obory, Poland (17 January '98), where I had two presentations:

1. Spin resonance in GaMnAs epilayers;
1. Transport and magnetic measurements in bulk GaSb:Mn crystals.

I attend the “25th International School of Semiconducting Compounds”, Jaszowiec, Poland (June '96), where I was the first author of the "Magnetooptical properties of GaAs:Mn".

I took part in "The 1st Workshop on the Physics of Diluted Magnetic Semiconductors" in Obory, Poland (9 December '95), where I made the presentation: “s,p-d exchange interaction in GaAs:Mn crystals”.

I attend the “24th International School of Semiconducting Compounds”, Jaszowiec, Poland (June '95), where I had two presentations:

1. “Hydrostatic pressure study of CdTe heavily doped with Br” (first author);
2. “Non-ohmic conductivity of high resistivity CdTe” (second author),