نتایج جستجو برای: helmet
تعداد نتایج: 2939 فیلتر نتایج به سال:
OBJECTIVE Road traffic injuries (RTIs) are a leading cause of disability and fatality globally. Motorcycle-related injuries, mainly head injuries, and related deaths and disabilities are a significant contributor to the burden of disease in low- and middle-income countries (LMICs). Helmets have been proven to be an effective way to reduce the risk of head injury. As motorcycle use continually i...
A wearable 'helmet' version of the S cone isolating technique was constructed to explore vision at equiluminance. For my high school summer science project, I visited parks and streets while wearing the helmet and report that the helmet appears to have captured the main properties described for the large-scale, more cumbersome stage version.
We saw a patient who presented with carbon dioxide narcosis and acute respiratory failure due to an exacerbation of chronic obstructive pulmonary disease. We intubated and 12 hours later he had recovered consciousness and could cooperate with noninvasive ventilation, at which point we extubated and used a helmet to provide noninvasive positive-pressure ventilation in assist/control mode, and th...
Introduction: Stereotactic Gamma Knife radiosurgery has been widely used for treating brain tumors. The scattered radiation outside of treatment field (peripheral dose) can induce the secondary cancer to specific organ. This paper investigated the absorbed dose to eyes, thyroid, heart, lung, breast and colon using a Monte Carlo technique for Mird phantom. We also study the ef...
INTRODUCTION There is limited craniofacial literature on the complications of helmet therapy and controversy regarding the effects of inadequate orthotic helmet therapy. The authors present a case of inadvertently prolonged orthotic helmet therapy after endoscopic strip craniectomy for isolated sagittal synostosis. CASE PRESENTATION A two-month-old Caucasian baby underwent uncomplicated endos...
We invoke a triple rationale to rebut Hooper and Spicer's argument against mandatory helmet laws. First, we use the laws of physics and empirical studies to show how bicycle helmets afford substantial protection to the user. We show that Hooper and Spicer erroneously downplay helmet utility and that, as a result, their attack on the utilitarian argument for mandatory helmet laws is weakened. Ne...
OBJECTIVES To evaluate the impact of a revised Italian motorcycle-moped-scooter helmet law on crash brain injuries. DESIGN A pre-post law evaluation of helmet use and traumatic brain injury (TBI) occurrence from 1999 to 2001. SETTING Romagna region, northeastern Italy, with a 2000 resident population of 983 534 persons. PARTICIPANTS Motorcycle-moped rider survey for helmet use compliance ...
The Department for Transport introduced a safety helmet assessment and rating program (SHARP) for motorcycle helmets sold in the UK. The mechanics behind the part of the scheme that uses a rigidsphere head-plus-helmet model to estimate the peak headform acceleration in oblique helmet impact tests, is assessed and the approximations exposed. Finite Element Analysis, of a deformable helmet with a...
Objective. To study the impact of helmet use on outcomes after recreational vehicle accidents. Methods. This is an observational cohort of adult and pediatric patients who sustained a TBI while riding a recreational vehicle. Recreational vehicles included bicycles, motorcycles, and all-terrain vehicles (ATVs), as well as a category for other vehicles such as skateboards and scooters. Results. L...
OBJECTIVE To investigate the use of helmets for cyclists choosing to use BIXI bikes in comparison to personal bike riders in the City of Toronto. DESIGN Cross-sectional study design. SETTING Cyclists were observed in Toronto, Canada. PARTICIPANTS Of the 6732 sample size, 306 cyclists on BIXI bikes and 6426 personal bike riders were observed. OUTCOME MEASURE The outcome of interest was h...
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