improvements in science and technology and the use of modern machinery in manufacture have led to increase in the number of workers exposed to hazardous agents including noise. this study evaluated the effects of occupational noise on hearing loss and blood pressure in welders after 4 years.in this cohort study, all of the welders working at one of neyshabur's water heater producing factories w...

purpose: to compare intraocular pressure (iop) readings measured by the ocular response analyzer (ora) with those measured by the goldmann applanation tonometer (gat) in keratoconic eyes following penetrating keratoplasty (pkp) and to evaluate the influence of anatomical and biomechanical properties of the grafts on iop measurements. methods: this cross-sectional study was conducted on 45 kerat...

traumatic brain injury is a leading cause of disability and death from injury in the world. the interleukin-1 (il-1) is a family of cytokines that act as key mediators of the inflammatory response peripherally and centrally. based on many studies, researchers found that the il-1 is the well-known molecule in relation to acute tbi in the models of both focal and diffuse injuries. the il-1 family...

background: health benefits of vitamin d has been proved by a large number of studies, however, to the best of our knowledge there has been no study investigating the effect of mega dose of vitamin d on gestational diabetes mellitus (gdm). this study was the first to assess the effect of postpartum injection of mega dose of vitamin d on blood pressure (bp) in gdm. methods: this is a randomized ...

objectives this study aimed to assess the prevalence and outcome of undiagnosed hypertensive patients admitted to the emergency department. materials and methods this cross-sectional study was conducted from march 2009 to march 2010 at imam hossein medical and educational center, teheran, iran. a total of 2070 patients aged 18 years and older were admitted to the emergency department without pr...

purpose: to study the pattern of perfusion of central retinal artery (cra) after 0.1 ml intravitreal injection of bevacizumab to verify the need for any maneuver to decrease the intraocular pressure (iop) including anterior chamber paracentesis (acp) methods: this is a prospective, interventional, noncomparative case series. patients receiving intravitreal injection of bevacizumab for choroidal...

purpose: to evaluate the effect of phacoemulsification and posterior chamber intraocular lens (pciol) implantation on intraocular pressure (iop) in eyes with chronic angle-closure glaucoma. methods: twenty-two patients with chronic angle-closure glaucoma (cacg) and visually significant cataract were included in our study. all were underwent phacoemulsification and pciol implantation. iop, depth...

among the all parameters affecting the performance of a downhole de-oiling hydrocyclone, the investigation of internal flow field deserves more attempts especially in the petroleum industry. in this study, the effects of inlet flow rate, inlet oil volume fraction, and oil droplet diameter on the separation efficiency and pressure drop ratio have been investigated along the hydrocyclone body. al...