The Effects of Electronic Media on Children

Nowadays, mobile phone, the Internet, mp3 player are important parts of our lives. They have a great influence over all age groups. Gadget dependency especially concerns children who are affected a lot by all kinds of modern devices: they listen to loud music on headphones, watch cartoon close to the screen and spend too much time playing video games. Thus, digital addiction of children is becoming an issue of increasing importance we can not just dismiss

Characteristic of immunogencity of seasonal influenza vaccines

Influenza at the present stage is a serious problem, it is the only disease that over the past decade has caused a pandemic. Immunisation is the most important way to contain the infection. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3214

A Mediterranean element of the vegetation: Junco maritimi-Cladietum marisci – a new association for Ukraine

Cladium mariscus (L.) Pohl (Cyperaceae) is a rare species in Europe considered by several authors to be a relict of the early Holocene period. It is listed in the Red Data Book of Ukraine, Annexes of the Habitat Directive and the Bern Convention. Communities with domination of this species are included in the Green Data Book of Ukraine. Substantial differences in major ecological factors for Cladium mariscus communities in the western (carbonate bogs) and the southern (marshes and floating swamps of the northern Black Sea) regions of Ukraine were shown. The author carried out comparisons of relevés characterizing different communities with Cladium mariscus within Europe. Based on the results of TWINSPAN analysis, four associations were identified, confirmed by floristic indices and ecological data: Cladietum marisci Allorge 1921, Soncho maritimi-Cladietum marisci (Br.-Bl. & O. de Bolòs 1957) Cirujano 1980, Dorycnio recti-Cladietum marisci Gradstein & Smittenberg 1977 and Junco maritimi-Cladietum marisci (Br.-Bl. & O. de Bolòs 1957) Géhu & Biondi 1988. Thus, in addition to the association Cladietum marisci, a new one was indicated for Ukraine, Junco maritimi-Cladietum marisci

Vegetation mapping of the Dzharylhach Island (Ukraine)

Dzharylhach Island – the largest one in the Black Sea and it is part of the “Dzharylhatskyi” National Nature Park, which located in the southern part of Ukraine. A 1:10000 scale vegetation map of Dzharylhach Island has been developed. The main unit for mapping is a complex of associations. In total 28 of such complexes were identified. The map shows the territorial differentiation of vegetation. It has also been used to reconstruct the island vegetation changes over the past 80 and 20 years. A comparison of cartographic materials revealed that the predominant processes in vegetation cover are halophytization and xerophytization of communities. The most distributed types of communities on the island are aquatic – Zosteretea), halophytic – Festuco-Puccinellietea and psammophytic – Festucetea vaginatae. Due to specific hydrological and soil conditions, the northern spit and shores of the island represent natural vegetation types only

Application of diatom analysis for the study of the history of the lakes of north-west USSR. [Translation from: Istoriya Ozer; Trudy Vses.Simp.Vilnius p1-7. Vilnius, 1970.]

During late - and post-glacial times lakes played a leading role in the development of the landscape of the North-west European part of USSR. A variety of geographic circumstances created great variegation of natural conditions in lakes and determined the composition of their diatoms. The basic stages of the development of the diatom flora of lakes are linked with general climatic changes. The deepwater regions of large periglacial lakes of the North-west USSR are inhabited by plankton diatoms of the genera Melosira and Cyclotella. Diatom analysis is further applied for the study of the history of the lakes of north-west USSR