The respiratory tract must be open to the environment to allow exchange of gas between air and blood. This renders lhe lungs susceptible to colonization and infection by foreign organisms. It is necessary for lhe lower respiratory tract to have mechanisms to contain and control such foreign material. The gas exchange surface of lhe lung must be thin, delicate and permeable, rhus the mechanisms ...

The third issue of the fourth volume of the EAI transactions on Security and Safety provides an insight to methods and techniques that improve security, resiliency and privacy of modern systems, such as clouds, moving target defense (MTD)-enabled systems and Blockchains. The articles that constitute this issue focus on three main areas. The first one consists of novel methods that can increase ...

OBJECTIVES The aim of the study was to explore the relationship between various areas of self-image and defence mechanisms in adolescents. The study included a division into groups according to whether or not they were receiving psychiatric treatment. METHODS Data were obtained from two groups: a clinical group (30 persons), consisting of adolescent patients of the Adolescent Inpatient Ward o...