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Science News Archive September 2013


Page 32 of 32

Quitting smoking drops heart attack risk to levels of never smokers

A recent study published by the European Society of Cardiology found that quitting smoking reduces the risk of heart attacks and death to levels seen in never smokers. However, it does not reduce the presence or severity of coronary artery disease (CAD). The study examined over 13,000 patients from around the world and found that activ...

Cracking bacteria's secrets may lead to new treatments

Scientists have mapped the structure of a protein that helps bacteria evade the immune system. Understanding this protein, called BamA, could lead to new treatments for diseases like gonorrhoea and chanchroid. The discovery brings researchers closer to stopping infection before it takes hold.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Family history doubles aortic stenosis risk

A study found that patients with a first degree relative registered with aortic stenosis have a 2.04-fold increased risk of developing the condition. This risk is doubled in those with ischaemic heart disease and family history, highlighting the importance of genetic factors and familial clusters in the development of aortic stenosis.

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Cold weather produces more heart attacks

A nationwide study found that cold weather increases heart attack risk, with temperatures below 10°C significantly correlated. Unlike air pollution, which has a negligible effect, temperature plays a crucial role in triggering acute myocardial infarction.

Increased greenhouse gases and aerosols have similar effects on rainfall

Research from the University of Hawaii at Manoa reveals that greenhouse gases and aerosols have similar spatial patterns of climate responses, leading to changes in ocean-atmospheric feedback structures. This finding challenges previous distinctions between aerosol-induced and greenhouse-gas-induced changes in rainfall.

Physical activity decreases sudden cardiac death risk in unfit men

A study of 2,656 Finnish men found that regular physical activity and cardiorespiratory fitness are key factors in reducing the risk of sudden cardiac death. Men with low cardiorespiratory fitness who engaged in regular physical activity had a significantly lower risk of SCD compared to those with high CRF and LTPA.

World-leading penguin experts come to Britain

Researchers from the University of California reveal that Emperor Penguins can dive to over 500m and stay underwater for up to 27 minutes. They also discover a unique heart rate response, slowing down to as low as 10 beats per minute to conserve energy.

DNA 'cages' may aid drug delivery

Researchers at McGill University have created DNA 'cages' that can encapsulate small-molecule drugs and release them in response to a specific stimulus. The discovery has the potential to revolutionize drug delivery methods, offering precise control over drug release and reducing toxicity.

Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Researchers untangle genetics of drug resistant TB

Researchers used phylogenetics to analyze whole genome sequences of TB, revealing 39 new genes associated with elevated drug resistance. The findings suggest a multistep process for acquiring resistance and implications for targeted detection methods.

Mycobacterium tuberculosis: Our African follower for over 70,000 years!

Mycobacterium tuberculosis originated in Africa at least 70,000 years ago. The bacteria have a strikingly close genetic match with humans, suggesting a long history of co-evolution. This has led to the development of new strategies for disease control and may help predict future patterns of the disease.

Out-of-hospital cardiac arrest survival just 7 percent

Research presented at ESC Congress 2013 found that out-of-hospital cardiac arrest survival rates are low, with only 7% of patients surviving. Therapeutic hypothermia and early coronary reperfusion were both linked to improved survival outcomes in patients.

Move it and lose it: Every 'brisk' minute counts

A University of Utah study found that higher-intensity activity, even in short bouts, can lower the risk of obesity and promote weight loss. The research used data from over 4,500 adults and showed that daily minutes spent in high-intensity activity can offset up to half a pound of weight.