نتایج جستجو برای: radiation hazards

تعداد نتایج: 276161  

2016
Xingsheng Hu Wenwu He Shimin Wen Xuqin Feng Xi Fu Yusong Liu Ke Pu

INTRODUCTION There are no adequate data to determine whether intensity-modulated radiotherapy (IMRT) is superior to three-dimensional conformal radiotherapy (3DCRT) in the treatment of non-small cell lung cancer (NSCLC). This meta-analysis was conducted to compare the clinical outcomes of IMRT and 3DCRT in the treatment of NSCLC. METHODS No exclusions were made based on types of study design....

2010
Jeanne Dietsch William P. Kennedy

Integrating sensors with autonomously navigating robots makes them useful for many applications: delivery of packages, components, and supplies; monitoring wireless networks, radiation, or HVAC; and responding to emergencies and hazards. MobileRobots' intelligent, autonomous mobile platforms perform these and many other tasks. A result of nearly eleven years of development, the company's next-g...

Journal: :The American journal of forensic medicine and pathology 2002
Kurt B Nolte David G Taylor Jonathan Y Richmond

An autopsy may subject prosectors and others to a wide variety of infectious agents, including bloodborne and aerosolized pathogens such as human immunodeficiency virus, hepatitis B and C viruses, and Mycobacterium tuberculosis. Other hazards include toxic chemicals (e.g., formalin, cyanide, and organophosphates) and radiation from radionuclides used for patient therapy and diagnosis. These ris...

Journal: :Neuro-oncology 2014
Ayal A Aizer Nils D Arvold Paul Catalano Elizabeth B Claus Alexandra J Golby Mark D Johnson Ossama Al-Mefty Patrick Y Wen David A Reardon Eudocia Q Lee Lakshmi Nayak Mikael L Rinne Rameen Beroukhim Stephanie E Weiss Shakti H Ramkissoon Malak Abedalthagafi Sandro Santagata Ian F Dunn Brian M Alexander

BACKGROUND The impact of adjuvant radiation in patients with atypical meningioma remains poorly defined. We sought to determine the impact of adjuvant radiation therapy in this population. METHODS We identified 91 patients with World Health Organization grade II (atypical) meningioma managed at Dana-Farber/Brigham and Women's Cancer Center between 1997 and 2011. A propensity score model incor...

2014
Seyed Ali Reza Mortazavi Ali Tavakkoli-Golpayegani Masoud Haghani Seyed Mohammad Javad Mortazavi

Although exposure to electromagnetic radiation in radiofrequency range has caused a great deal of concern globally, radiofrequency radiation has many critical applications in both telecommunication and non-communication fields. The induction of adaptive response phenomena by exposure to radiofrequency radiation as either increased resistance to a subsequent dose of ionizing radiation or resista...

1967
D. JAMES

A “breadboard” model of the proposed satellite infrared spectrometer for the measurement of atmospheric temperature profiles was used in two experiments a t ground level. These were designed to demonstrate the feasibility of the instrument and to investigate some of the hazards involved in inverting the radiation integral. I t is shown in the second experiment that realistic temperature profile...

Journal: :The Turkish journal of pediatrics 2013
Enver Turan Yavuz Yeşilova Derya Uçmak Özgür İlhan Çelik

Erythema ab igne (EAI), also known as "toasted skin syndrome" or "heatinduced circumscribed dermal melanosis", presents with pigmented reticular skin lesions with telangiectasias due to prolonged thermal radiation exposure. This article describes a 16-year-old male patient with EAI due to the use of a thermal pillow, and discusses a potential causative agent of EAI. The potential hazards of mis...

Journal: :The Future of children 1995
Tee L Guidotti

Our children come in contact with a wide variety of environmental hazards every day. The dangers lurk in the foods they eat, the water they drink and the air they breathe. Substances like mercury, lead and some pesticides and solvents can damage a child’s nervous system. PCBs and dioxin can disrupt a child’s hormones. Radiation, asbestos, arsenic and dioxin can cause cancer in children. Sulfur ...

Journal: :Community dentistry and oral epidemiology 1987
P Eriksen P M Moscato J K Franks D H Sliney

The potential ocular hazards associated with the use of dental curing lights were evaluated. Recommendations are provided for precluding exposure of personnel to hazardous levels of optical radiation. Users should not stare directly into the dental curing lights at distances shorter than 25 cm (which would not be a likely event). Eye protectors which filter wavelengths below 500 nm may be desir...

Journal: :Industrial health 2013
Ariane Adam-Poupart France Labrèche Audrey Smargiassi Patrice Duguay Marc-Antoine Busque Charles Gagné Hannu Rintamäki Tord Kjellstrom Joseph Zayed

The potential impacts of climate change (CC) on Occupational Health and Safety (OHS) have been studied a little in tropical countries, while they received no attention in northern industrialized countries with a temperate climate. This work aimed to establish an overview of the potential links between CC and OHS in those countries and to determine research priorities for Quebec, Canada. A narra...

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