Some active galactic nuclei (AGNs) are strong sources of non-thermal radiation. It is expected that this radiation is produced in collimated outflows of plasma moving with relativistic speeds, the so-called jets. The ...

Lista izotopów promieniotwórczych znajdujących swoje zastosowanie w medycynie nuklearnej jest długa, a pierwsze miejsce niepodzielnie należy do izotopu 99mTc – uzyskiwanego w generatorze 99Mo/99mTc. Drugą pozycję według ...

Archimedean triangular operators form the basis of the tools for development, analysis and designing of fuzzy systems. They are generated by simple, monotone, single-valued and continuous functions. The basic sets of ...

In the paper a computational study of the electrocaloric efect is presented for a cubic nanocluster consisting of 8 sites. The system of interest is described by means of an extended Hubbard model in external electric ...

We formulate a covariant description of a relativistic qubit identified with an irreducible set of quantum spin states of a Majorana particle with a sharp momentum. We treat the particle’s four-momentum as an external ...

This PhD thesis includes theoretical and observational studies of γ-ray emission from radio-quiet accreting black holes. The theoretical motivation for the search of γ-ray emission from such sources concerns the considerable ...