In this paper we investigate focusing properties of graded index (GRIN) photonic crystal (PC) structures which are composed of different materials with different refractive indices. GRIN PC structure is constructed from air holes in dielectric background. The holes radii are varied in the normal direction to the propagation in such a way that a parabolic effective refractive index is produced. ...

Background: Prostate specific antigen (PSA) has been used as a screening test for the early detection of prostate cancer (PC) for many years. Although the introduction of PSA test led to a considerable increase in reported prostate cancer cases, there is still some controversy over the sensitivity and specificity of this marker in distinguishing PC patients from those with benign prostate hyper...

Aim: To compare the quality of the PC's prepared by three methods i.e Platelet Rich Plasma (PRP), Buffy Coat (BC) and Apheresis method as per the departmental SOP based on DGHS criteria. Material & Methods: Four platelet concentrates prepared by each of the three methods were assessed every month for the following quality parameters Swirling, Volume, Platelet count, WBC count and pH. 48 PC of e...

BACKGROUND Pancreatic cancer (PC) is considered the most lethal cancer and approximately 10% of PC is hereditary. The purpose of the study was to assess attitudes of at-risk family members with two or more relatives affected with pancreas cancer (PC) toward PC risk and future screening options. METHODS At-risk family members and primary care controls were surveyed regarding perceived PC risk,...