Tuesday, June 10, 2008

mobile phones and brain tumours –a public health concern

08 June 2008

mobile phones and brain tumours –a public health concern

dr. vini gautam khurana
Dr Vini Gautam Khurana is a Mayo Clinic-trained neurosurgeon with an advanced neurosurgery Fellowship in cerebral vascular and tumour microsurgery from the Barrow Neurological Institute in Phoenix, Arizona. He holds active medical registration with the Medical Boards of the Australian Capital Territory and the State of New South Wales, Australia. He is the only Australian medical graduate to have completed an entire neurosurgical training programme, PhD and Fellowship in the United States of America, where he trained and worked for 10 years. ~ read more and also brain-surgery.net.au - Dr. Vini G. Khurana MBBS, BSc(Med), PhD, FRACS

dr. khurana has written a research paper the aim of which is to:
"[S]cientifically and objectively review data suggesting or refuting a relationship between mobile phone usage and the occurrence of malignant brain tumours. Following fourteen months of research involving a comprehensive review of over 100 sources in the recent medical and scientific literature in addition to the Press and Internet, the author concludes that there is a growing body of statistically significant evidence for a relationship between the overall length of use of a mobile phone and the delayed occurrence of a brain tumour on the same side of the head as the "preferred side" for mobile phone usage. The elevated risk (increased odds) appears to be in the order of 2 - 4 fold."
KEY MESSAGES OF THIS WORK:
• Mobile phones are convenient and frequently invaluable, yet exposure to their electromagnetic radiation is invisible. Therefore, any danger this exposure poses may be easily dismissed.

• Exposure is long-term and its effects on the body, particularly its electrical organ, the brain, are compounded by numerous other simultaneous long-term exposures including continuous waves from radio and TV transmitter towers, cordless phone base stations, power lines, and wireless/WiFi computing devices.

• A malignant brain tumour represents a life-ending diagnosis in the vast majority of those diagnosed. There is a significant and increasing body of evidence, to date at least 8 comprehensive clinical studies internationally and one long-term meta-analysis, for a link between mobile phone usage and certain brain tumours.

• Taken together, the data presented below compellingly suggest that the link between mobile phones and brain tumours should no longer be regarded as a myth. Individual and class action lawsuits have been filed in the USA, and at least one has already been successfully prosecuted, regarding the cell phone-brain tumour link.

• The "incubation time" or "latency" (i.e., the time from commencement of regular mobile phone usage to the diagnosis of a malignant solid brain tumour in a susceptible individual) may be in the order of 10-20 years. In the years 2008-2012, we will have reached the appropriate length of follow-up time to begin to definitively observe the impact of this global technology on brain tumour incidence rates.

• There is currently enough evidence and technology available to warrant Industry and Governments alike in taking immediate steps to reduce exposure of consumers to mobile phone-related electromagnetic radiation and to make consumers clearly aware of potential dangers and how to use this technology sensibly and safely.

• It is anticipated that this danger has far broader public health ramifications than asbestos and smoking, and directly concerns all of us, particularly the younger generation, including very young children.
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A child's brain is structurally developing well into adolescence, has a greater relative water content and lower volume compared with an adult's brain, and subject to more "plasticity" (structural and functional reprogramming) at a microscopic level. It is logical to expect that exposing a child's brain to cell phone radiation is likely to cause cellular damage that, in due course, may lead to brain cancer. Children should NOT use mobile or cellular phones unless in an emergency.
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From Times Online
May 16, 2008

Shops secretly track customers via mobile phone

Signals given off by phones allow shopping centres to monitor how long people stay and which stores they visit

The Path Intelligence box, which tracks mobile phone signals

Jonathan Richards, San Francisco

Customers in shopping centres are having their every move tracked by a new type of surveillance that listens in on the whisperings of their mobile phones.

The technology can tell when people enter a shopping centre, what stores they visit, how long they remain there, and what route they take as they walked around.

The device cannot access personal details about a person's identity or contacts, but privacy campaigners expressed concern about potential intrusion should the data fall into the wrong hands.

The surveillance mechanism works by monitoring the signals produced by mobile handsets and then locating the phone by triangulation – measuring the phone's distance from three receivers.

It has already been installed in two shopping centres, including Gunwharf Quays in Portsmouth, and three more centres will begin using it next month, Times Online has learnt.

The company that makes the dishes, which measure 30cm (12 inches) square and are placed on walls around the centre, said that they were useful to centres that wanted to learn more about the way their customers used the store.

A shopping mall could, for example, find out that 10,000 people were still in the store at 6pm, helping to make a case for longer opening hours, or that a majority of customers who visited Gap also went to Next, which could useful for marketing purposes.

In the case of Gunwharf Quays, managers were surprised to discover that an unusually high percentage of visitors were German - the receivers can tell in which country each phone is registered - which led to the management translating the instructions in the car park.

The Information Commissioner's Office (ICO) expressed cautious approval of the technology, which does not identify the owner of the phone but rather the handset's IMEI code - a unique number given to every device so that the network can recognise it.

But an ICO spokesman said, "we would be very worried if this technology was used in connection with other systems that contain personal information, if the intention was to provide more detailed profiles about identifiable individuals and their shopping habits."

Only the phone network can match a handset's IMEI number to the personal details of a customer.

Path Intelligence, the Portsmouth-based company which developed the technology, said its equipment was just a tool for market research. "There's absolutely no way we can link the information we gather back to the individual," a spokeswoman said. "There's nothing personal in the data."

Sharon Biggar, the company's chief operating officer, said that one of the stores which had already deployed the receivers did not want its name revealed for fear of alarming its customers.

Liberty, the campaign group, said that although the data do not meet the legal definition of 'personal information', it "had the potential" to identify particular individuals' shopping habits by referencing information held by the phone networks.

The receivers together cost about £20,000 to rent per month. About 20 the units, which are unobtrusive, cream-coloured boxes about the size of a satellite dish, would be needed to cover the Bluewater shopping centre.

Bluewater, in Kent, said it had no plans to deploy the equipment. A spokesman for Gunwharf Quays was not available for comment.

Owners of large buildings currently have to rely on manual surveys to find out how customers use the space, which can be relevant to questions of design such as where the toilets should be located or which stores should be placed next to one another.

Other types of wireless technology, such as wi-fi and Bluetooth, can be used to locate devices, but the regular phone network signal is preferable because it is much more powerful and fewer receivers are needed to monitor a given area.

Phone networks have long been capable of gauging the rough location of a handset using three phone masts, but the margin error can be as great as 2km. The process is also less efficient when the phone is indoors. Path Intelligence's technology can tell where a phone is to "within a couple of metres."

"You're basically going to know that that person has been in Starbucks," Toby Oliver, the company's chief technology officer, said.

Even when the owner is not using it, a mobile phone makes contact with the network every couple of minutes, which is enough for the receivers to get a reading on its position.