We optimize the subjective depth of focus (DoF) with combinations of spherical aberration (SA4) and secondary spherical aberration (SA6) in various levels. Subjective DoF was defined as the visual interval for which three 20/50 high-contrast letters was perceived acceptable (objectionable blur limits). We used an adaptive optics system to dynamically correct the observer's aberrations and contr...

Mục tiêu: Mô tả một số đặc điểm lâm sàng thường gặp ở bệnh nhân viêm loét giác mạc do vi rút Herpes. Đối tượng và phương pháp nghiên cứu: tả, tiến cứu trên 96 mắt của được chẩn đoán Viêm herpes tại Bệnh viện Mắt Nghệ An từ tháng 3 năm 2021 đến 9 2021. Kết quả: Hầu hết đều có các biểu hiện cơ năng, thị lực 3/10 7/10 chiếm 26,04%. Vị trí ổ cạnh trung tâm là 56,25%, Về hình thái cành cây 60,42%, b...

Backgraund: the Dutch-Belgium randomised lung cancer screening trial (NELSON) used a volume-based protocol, and was able to significantly reduce prevalence of false positive results (2.1%). The aim this study compare performance manual linear diameter semi-automated volumetric nodule measurement, in MLCS ultra-LDCT pilot study.
 Aims: volume measurements Russian low-dose CT (LDCT) program....

A simple fast and precise reverse phase high performance liquid chromatographic method has been developed for the determination of Primidone Tablets. A symmetry (5μ, 150 x 4 .6mm column) in isocratic mode with methanol: Water (50:50) as mobile phase. The Flow rate is1.0ml/min and effluent is

The interaction of gas bubbles with a vortex is investigated experimentally to clarify the role of the initial bubble position on its trajectory around the tip vortex shed from a large hydrofoil. The experiments performed with 4-6mm bubbles show that the bubbles can undergo no capture, quick capture into the tip vortex or slow capture with a spiral trajectory around the vortex.