We develop an approach to utilize anisotropic metamaterials to solve one of the fundamental problems of modern plasmonics--parasitic scattering of surface waves into free-space modes, opening the road to truly two-dimensional plasmonic optics. We illustrate the developed formalism on the examples of plasmonic refractor and plasmonic crystal, and discuss limitations of the developed technique an...

background having a patient in a vegetative state in the family is a complicated and stressful experience. caring for such patients with complete disability at home is very challenging. objectives the present study aimed to explore the outcomes of caring for patients in a vegetative state for families and caregivers at home. patients and methods in this qualitative study, 16 vegetative patients...

The level and causes of party unity are under researched topics in parliamentary democracies, particularly in comparative perspective. This article presents a non formal model explaining party unity in legislative voting as the result of individual legislators’ decisions reacting to the incentives and constraints created by their respective institutional environments. Hypotheses derived from th...

The solution of the e-Learning is one of the most discussed priorities of modern universities. The whole problem lies in the global approach of which strategy must use to create e-Learning system. This paper describes an evaluation model for some of the existent methodologies used to create e-Learning system. The evaluation model is based on a comparative analysis: strategies, formation, and em...

Qualitative research is very important in educational research as it addresses the "how" and "why" research questions and enables deeper understanding of experiences, phenomena and context. Qualitative research allows you to ask questions that cannot be easily put into numbers to understand human experience. Getting at the everyday realities of some social phenomenon and studying important ques...

BACKGROUND Numerous DNA-damaging cellular stresses, including oncogene activation and DNA-damage response (DDR), may lead to cellular senescence. Previous observations linked microRNA deregulation with altered senescent patterns, prompting us to investigate whether epigenetic repression of microRNAs expression might disrupt senescence in prostate cancer (PCa) cells. METHODS Differential methy...