57 research outputs found
Mobile phones and head tumours. The discrepancies in cause-effect relationships in the epidemiological studies - how do they arise?
The uncertainty about the relationship between the use of mobile phones (MPs: analogue and digital cellulars, and cordless) and the increase of head tumour risk can be solved by a critical analysis of the methodological elements of both the positive and the negative studies. Results by Hardell indicate a cause/effect relationship: exposures for or latencies from 65 10 years to MPs increase by up to 100% the risk of tumour on the same side of the head preferred for phone use (ipsilateral tumours) - which is the only one significantly irradiated - with statistical significance for brain gliomas, meningiomas and acoustic neuromas. On the contrary, studies published under the Interphone project and others produced negative results and are characterised by the substantial underestimation of the risk of tumour. However, also in the Interphone studies a clear and statistically significant increase of ipsilateral head tumours (gliomas, neuromas and parotid gland tumours) is quite common in people having used MPs since or for 65 10 years. And also the metaanalyses by Hardell and other Authors, including only the literature data on ipsilateral tumours in people having used MPs since or for 65 10 years - and so also part of the Interphone data - still show statistically significant increases of head tumours
Internal short circuit and accelerated rate calorimetry tests of lithium-ion cells: Considerations for methane-air intrinsic safety and explosion proof/flameproof protection methods
Sharing out resources Purchasing & priority setting in the NHS
Available from British Library Document Supply Centre- DSC:6015.24(NAHAT-RP--11) / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo
Why regulate? Regulating residential care for elderly people
Available from British Library Document Supply Centre- DSC:q96/04209 / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo
Teaching grammar to school-aged children with specific language impairment using Shape Coding
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