A discussion of Before Copernicus: The Cultures and Contexts Scientific Learning in the Fifteenth Century edited by Rivka Feldhay F. Jamil Ragep. Published Online (2021-04-30)Copyright © 2021 Matjaž Vesel Article PDF Link: https://jps.library.utoronto.ca/index.php/aestimatio/article/view/37603/28608 Corresponding Author: Vesel, Research Centre Slovenian Academy Sciences ArtsE-Mail: matjaz.vesel...

In our review of the blazar phenomenon, we discuss blazar models, with a focus on the following issues: sub-parsec jets and their environment; energy dissipation and particle acceleration; and radiative processes.

1Chair of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Faculty of Medicine in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland 2Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland 3Department of Hematology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland 4Department...

We review the main scientific pictures of universe developed from ancient times to Albert Einstein and underline that all them treated as a stationary system with unchanged physical properties. In contrast this, 100 years ago Alexander Friedmann predicted expands starting point infinitely large energy density. briefly discuss meaning this prediction its experimental confirmation consisting disc...

a letter authored by the well-known italian nobleman and traveller pietro della valle, dated 1624, is probably the oldest existing persian document in which modern astronomy, in particular the tychonic model, is introduced and discussed in detail. it was written in the reign of the safavid shah abbas i, less than a quarter of century after tycho brahe’s death. in part it was based on what his i...

Combinationof capillaryelectrophoresis, PCRandphysiological assays in di¡erentiationof clinical strainsofStaphylococcus aureus Katarzyna Hrynkiewicz, Ewa Kłodzińska, Hanna Dahm, Jacek Szeliga, Marek Jackowski & Boguslaw Buszewski Department of Microbiology, Institute of General and Molecular Biology, Nicolaus Copernicus University, Toruń, Poland; Environmental Chemistry and Bioanalytics, Facult...