Background: Epidemiological studies show that computed tomography (CT) is one of the main sources of ionizing radiations. Shielding of radiosensitive organs is one of the dose reduction methods. This study aimed to assess the eye lens dose reduction and image quality resulting from the use of radio-protective bismuth shield in brain CT imaging. Methods: Bismut...

Up to now, jet kinematic studies of radio quasars have barely reached beyond the redshift range at $z>3.5$. This significantly limits our knowledge high-redshift jets, which can provide key information for understanding nature and growth black holes in early Universe. In this paper, we selected 9 radio-loud $z>3.5$ display milliarcsec-scale morphology. We provided evidence on source by presenti...

five genera and ten species of the tribe aeliini still from the indo-pakistan region are keyed, compared to their closest allies and their geographical distribution given. a description of all the above genera and species of adria st?l and bonacialus distant has been given. these species, including two new species of adria, are described with special reference to their metathoracic scent gland ...

purpose : to compare visual quality in patients receiving alcon acrysof restor multifocal versus acrysof sa60at monofocal intraocular lenses (iol) methods : in this interventional study, patients with senile cataract undergoing surgery were enrolled. the age of the patients ranged between 40 and 85 years, and their potential preoperative vision was 20/30 or better. in all patients phacoemulsifi...

BACKGROUND Information is lacking on the impact of visual impairment on the quality of life of elderly Africans. This study aims to examine the impact of self-reported visual impairment on the quality life of an elderly Nigerian sample. RESULTS Four hundred and fifty-three (22.3%) of the respondents reported impairment for distant vision, 377 (18.4%) reported near vision, and 312 (15.2) repor...