Lung cancer is the second most common in world, with an average five-year survival rate of 15 percent. Approximately 238,340 people were diagnosed US 2023 based on estimation American Cancer Society, and 127,070 died from it. has always been a big problem for scientists. There never good solution. So, early detection particularly important. In recent years, endobronchial ultrasonography (EBUS) ...

introduction: meatoplasty is the final and essential step in performing effective canal wall down surgery for chronic otitis media. in this article we review some previous techniques and discuss our preferred method. materials and methods: in this observational case series study, we used this technique in 53 patients (28 male and 25 female) between january 2005 and january 2008. our survey was ...

OBJECTIVES/HYPOTHESIS To compare complication rates between patients whose cochlear implants were secured by a bony tie-down technique versus those secured by a periosteal tie-down technique. STUDY DESIGN A retrospective review of 302 consecutive patients undergoing cochlear implantation (327 implants), including both adults and children, at a single institution by a single surgeon. METHODS...

The purpose of this study was to develop a simple approach to evaluate resistive frictional forces acting on manual wheelchairs (MWCs) during straight and turning maneuvers. Using a dummy-occupied MWC, decelerations were measured via axle-mounted encoders during a coast-down protocol that included straight trajectories and fixed-wheel turns. Eight coast-down trials were conducted to test repeat...

Purpose To investigate the reliability of ocular aberration measurement in myopic children under scotopic conditions and to validate the mathematical Zernike pupil scaling-down technique. Methods Ocular aberrations of 45 myopic children were examined under scotopic conditions via iTrace aberrometer. The intra- and intersession repeatability was evaluated for both the measured values with the ...

child with down's syndrome is an individual who is suitable and eligible to receive early intervention services. this study aimed to measure the family outcome among parents of down syndrome children, on the impact of receiving early intervention and identify the factors influencing it.a cross sectional was conducted from april 2009 until january 2010 with a total of 125 parents of children wit...

objectives: down syndrome (ds) is the most common multiple congenital anomaly syndrome associated with a developmental disability. children with down syndrome have delay in both motor and mental age. this study carried out to explore relationship between mental and motor age of children with ds. methods: a cross-sectional study was conducted on 60 participants with ds (5 to 7 years old) using r...

introduction: mental retardation, is one of the most common causes for referral to genetic counseling centers, and is one of the greatest challenges in health care services in the world. down syndrome is the most common chromosomal abnormalities in humans. methods: this study performed in medical genetic counseling center of welfare organization in south of iran with high consanguineous marriag...