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Medical devices approved first in the European Union (EU) are associated with a greater rate of safety issues, finds a study published by The BMJ today.

Clinical trial results for many new medical devices that could guide treatment decisions also remain unpublished or unavailable up to five years after approval, the findings show.

As such, the researchers call for greater regulatory transparency to enable patients and clinicians to make informed decisions about treatment.

Medical devices play an important role in patient care, but their approval and regulation are handled differently in the EU and US.

A period of controversy over the risks and benefits of statins, covered widely in the UK media, was followed by a temporary increase in the number of people stopping their statin treatment, finds a study in The BMJ today.

The increase in stopping was seen among patients taking statins for existing heart disease (known as secondary prevention) as well as patients at high risk of developing disease in the next 10 years (known as primary prevention).

The researchers found no evidence that widespread media coverage was linked to changes in the proportion of newly eligible patients starting statins.

Manufacturers of feminine hygiene products, including tampons and sanitary products, could dedicate a part of their revenues to support public health programmes that prevent violence against women, argues an expert in The BMJ this week.

Physical and sexual violence is a public health problem that affects more than one third of all women, equivalent to at least a billion women globally, according to a World Health Organization (WHO) study.

Effective programmes and strategies to prevent domestic and sexual violence, the two most common types, have been identified by the WHO and collaborators, but these are "hugely underfunded", argues Dr S D Shanti, associate professor of public health from the A T Still University of Health Sciences, USA.

At the 2012 Democratic convention, when President Obama mentioned that his administration had killed the terrorist Osama Bin Laden, the building erupted in cheers.

This was positively un-Democratic, to both Democrats and Republicans. Democrats were supposed to be more tolerant of other cultures, with safe spaces for all, and anything that looked like being critical of Muslims was usually frowned upon.

COLUMBUS, Ohio - While events like the Arab Spring brought hope that the internet could inspire the growth of democracy in authoritarian countries, a new study offers a reality check.

Researchers studying Russian and Ukrainian internet users found that their demand for democratic reforms in their countries depended on what they were doing when they connected to the web.

Those who were on the internet primarily to get news and share political opinions with others were most likely to demand more democracy in their countries.

Those who visited the web mostly for entertainment purposes - such as watching cat videos - were less likely to say they wanted more democracy in their countries and believed they had more democracy than they actually did.

Our visual system is constantly bombarded with complex optical information. The input information is often insufficient or ambiguous, leading to potentially conflicting interpretations about the structure of the physical world. The human brain has amazing computational powers to resolve these ambiguities and generate a coherent perception almost instantly. As a way to understand how our brain works, scientists have been fascinated about how the human brain achieves this goal.