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Sunday, August 17, 2008

 

Research on cyber bullying,
technical issues expose dangers

 
The research studies made by experts on the physical and mental health hazards of mobile phones and hi-tech equipment, including computers, have yielded important findings about “cyberbullying.”

“Cyberbullying: its nature and impact in secondary school pupils” is reported in Blackwell Publishing’s Journal of Child Psychology and Psychiatry and Allied Disciplines, Volume 49, Number 4, April 2008, pp. 376-385(10).

The authors are Peter K. Smith, Jess Mahdavi, Manuel Carvalho, Sonja Fisher, Shanette Russell and Neil Tippett.

Cyberbullying is bullying using cell phones and the Internet. Most earlier studies have been on the prevalence of bullying by the use of text message and e-mail.

In this study, two surveys were done with pupils aged 11 to 16 years: (1) 92 pupils from 14 schools, supplemented by focus groups; (2) 533 pupils from five schools, to assess if the findings can be generalized and to investigate relationships of cyberbullying to general Internet use.

Both studies distinguished cyberbullying done inside and outside of school and the media of cyberbullying.

The two studies found cyberbullying to be less commonplace than traditional bullying, yet frequent enough. Cases of cyberbullying were reported more outside of school than inside.

Phone call and text message bullying were most prevalent, with instant messaging bullying in the second study.

Their effect on the victim appeared to be comparable to traditional bullying. Mobile phone/video clip bullying, while rarer, was perceived to have more negative impact. Age and gender differences varied between the two studies.

The first study found that most cyberbullying was done by one or a few students, usually from the same year group. It often only lasted about a week, though there were longer incidents. The second study found that being a cybervictim, but not a cyberbully, correlated with Internet use. And many cybervictims had also been traditional bullying victims.

Pupils recommended blocking/avoiding messages, and telling someone, as the best coping strategies; but many cybervictims had told nobody about it.

The researchers conclusion is that cyberbullying is an important new kind of bullying, with some different characteristics from traditional bullying. Much happens outside school.

Social and educational psychologists have much more research to make about this phenomenon.

Several researches have been done on RF energy from cell phones.

One is the “Distribution of RF energy emitted by mobile phones in anatomical structures of the brain.”

It came out on June 7, 2008 in the journal, Physics in Medicine and Biology, Volume 53, Number 11, pp. 2771-2783(13). The publisher is the Institute of Physics Publishing.

The authors are E. Cardis, I. Deltour, S. Mann, M. Moissonnier, M. Taki, N. Varsier, K. Wake and J. Wiart.

Abstract from the publishers says:

“The rapid worldwide increase in mobile phone use in the last decade has generated considerable interest in possible carcinogenic effects of radio frequency [RF]. Because exposure to RF from phones is localized, if a risk exists it is likely to be greatest for tumors in regions with greatest energy absorption. The objective of the current paper was to characterize the spatial distribution of RF energy in the brain, using results of measurements made in two laboratories on 110 phones used in Europe or Japan.

“Most [97 percent to 99 percent depending on frequency] appears to be absorbed in the brain hemisphere on the side where the phone is used, mainly [50 percent to 60 percent] in the temporal lobe. The average relative SAR is highest in the temporal lobe [6 percent to 15 percent, depending on frequency, of the spatial peak SAR in the most exposed region of the brain] and the cerebellum [2 percent to 10 percent] and decreases very rapidly with increasing depth, particularly at higher frequencies. The SAR distribution appears to be fairly similar across phone models, between older and newer phones and between phones with different antenna types and positions.

“Analyses of risk by location of tumor are therefore important for the interpretation of results of studies of brain tumors in relation to mobile phone use.”

Another RF study is “Recent Advances in Research on Radiofrequency Fields and Health: 2001-2003.”

The authors are: Krewski, Daniel; Glickman, Barry W.; Habash, Riadh W. Y.; Habbick, Brian; Lotz, W. Gregory; Mandeville, Rosemonde; Prato, Frank S.; Salem, Tarek; Weaver, Donald F.

The study was reported in the Journal of Toxicology and Environmental Health Part B: Critical Reviews, Volume 10, Number 4, June 2007, pp. 287-318(32). The publisher is Taylor and Francis Ltd.

The publisher’s abstract tells us that:

“The widespread use of wireless telecommunications devices, particularly mobile phones, has resulted in increased human exposure to radiofrequency [RF] fields. Although national and international agencies have established safety guidelines for exposure to RF fields, concerns remain about the potential for adverse health outcomes to occur in relation to RF field exposure.

“The extensive literature on RF fields and health has been reviewed by a number of authorities, including the Royal Society of Canada [1999], the European Commission’s Scientific Committee on Toxicity, Ecotoxicity, and the Environment [CSTEE, 2001], the British Medical Association [2001], the Swedish Radiation Protection Authority [Boice & McLaughlin, 2002], and the Health Council of the Netherlands [2002]. This report provides an update on recent research results on the potential health risks of RF fields since the publication of the Royal Society of Canada report in 1999 [See Krewski et al., 2001a] and our previous 2001 update [Krewski et al., 2001b], covering the period 2001-2003.

“The present report examines new data on dosimetry and exposure assessment, biological effects such as enzyme induction, and toxicological effects, including genotoxicity, carcinogenicity, and testicular and reproductive outcomes. Epidemiological studies of mobile phone users and occupationally exposed populations are examined, along with human and animal studies of neurological and behavioral effects.

“All of the authoritative reviews completed within the last two years have concluded that there is no clear evidence of adverse health effects associated with RF fields. However, following a recent review of nine epidemiological studies of mobile phones and cancer, Kundi et al. [2004] concluded that the possibility of an enhanced cancer risk cannot be excluded.

“These same reviews support the need for further research to clarify the possible associations between RF fields and adverse health outcomes that have appeared in some reports. The results of the ongoing World Health Organization [WHO] study of mobile phones will provide important new information in this regard.”

   
 

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