international travel has become increasingly common and accessible, hence, about two billion passengers undertake international and domestic air travel each year. venous thromboembolism (vte) is a serious public health disorder which may occur following prolonged travel, especially after air travel. a direct relation between vte development and prolonged travels has been documented, while some ...

The necessity for some techniques which can be used in investigating equations arising in mathematical models describing real-life situations in population biology and economics has increased the interest in studying nonlinear and rational difference equations for the last four decades, see, for example, [1–23] and the references therein. In [8] the authors proposed the following research project.

as european and american countries became industrialized, general sociology was gradually replaced with industrial sociology because the main issues were issues related to the industrial society. in the latter half of the 19th century and the early 20th century there was no clear idea about industrial sociology and its duties. after the second world war, a more exact definition of the field eme...

The article analyses the ways of solving modern problem non-linguistic faculty students’ foreign language proficiency. This is relevant nowadays because when students enter university majority them show low level proficiency accordingly to Common European Framework References. purpose describe positive impact developed new tool for extending vocabulary level. research was done in three stages: ...