The author considers problems of the book by Krystyna Waszakowa on the cognitive and communicative aspects of the study of modern Polish word-‑formation. The researcher focuses her attention on the possibility of using the cognitive semantics model of Ronald Langacker and the cognitive‑discourse model of Elena Kubryakova for the analysis of mechanisms of forming the semantics of word‑formation derivatives. Perspectives of the cognitive-‑communicative approach to the study of modern Polish word‑formation derivation Krystyna Waszakowa discusses in connection with the achievements of Slavic descriptive and structural derivatology.

This article presents a low-profile and flexible dualband AMC Antenna operating at 2.45/ 5.8 GHz for wireless local area network (WLAN) on-body antenna applications using textile materials. A dual-band artificial magnetic conductor (AMC) structure with a dual hexagonal shape was used to reduce back radiation, therefore specific absorption rate (SAR), and improve the antenna performance parameters. To study the antenna/body interaction, a suitable comprehension and detailed studies of the wave propagation in the vicinity of the human arm in different meteorological conditions were carried out to demonstrate the effects of the skin condition on the antenna performance parameters. The simulation and measurement results indicate that electromagnetic communication on wet skin is viable. Acceptable SAR values were obtained, revealing that the body is well immune from the antenna electromagnetic radiation in functional wearable conditions. The proposed wearable AMC antenna provided engaging simulation and measurement results. It satisfies users' comfort and safety properties, making it a good candidate for WLAN/WBAN applications.